Intel Corporation

Intel IP Corporation

Jinyong Lee

Assaf Gurevitz

Anthony Tsangaropoulos

Prasanna Desai

Oren Kaidar

Lu Lu

Itzik Shahar

Dongsheng Bi

Dor Chay

Yuwei Zhang

Avishay Friedman

Sharon Heruti

Brian J Sublett

Thomas W Brown

Reuven Lavie

Yarden Regev

Chen Meng

Aiguo Yan

Xuan Steven Li

A Bluetooth receiver is provided. The Bluetooth receiver comprises interface circuitry configured to receive a receive packet. Further, the Bluetooth receiver comprises physical layer processing circuitry configured to demodulate the receive packet into a bit stream representing a sequence of data symbols. Further, the physical layer configured to determine a number of bits in the bit stream having a highest likelihood of being erroneous as weak-bits and determine locations of the identified weak-bits in the bit stream. The Bluetooth receiver further comprises medium access control layer processing circuitry configured to receive the bit stream and information about the determined locations of the identified weak-bits from the physical layer processing circuitry. Further, the medium access control layer is configured to flip one of the weak-bits and a sequential bit in the bit stream in order to generate a modified bit stream, run a respective cyclic redundancy check on the bit stream and the modified bit stream and compare results of the cyclic redundancy checks on the bit stream and on the modified bit stream.

Bluetooth receiver, electronic device and method for a Bluetooth receiver

In one embodiment, an apparatus of a wireless communication device includes control circuitry to cause receiver circuitry of the wireless communication device to switch between an on-mode and an off-mode. The apparatus also includes synchronizing circuitry to: perform a correlation on signals of a packet received by the receiver circuitry when in the on-mode to detect a pattern in the received signals, and cause the control circuitry to hold the receiver circuitry in the on-mode based on detection of the pattern in the received signals. The apparatus further includes demodulation circuitry to process additional signals of the packet received by the receiver circuitry when held in the on-mode.

Time slotted scan receiver

Described herein are technologies related to an implementation of interference mitigation in a receiver of a portable device. A preemptive-automatic gain control (AGC) system mitigates a collocated or external interfering signal in a receiver of a portable device. The receiver of the portable device receives and processes a data packet of a first radio frequency (RF) signal that includes a Bluetooth (BT) signal, a Wi-Fi signal, a near field communications (NFC), 3G, 4G, or the like. During the processing of the data packet, a collocated or an external second RF signal is detected and received by the receiver. The second RF signal includes an interfering Bluetooth (BT) uplink transmission, a near field communications (NFC) transmission signal, a Wi-Fi transmission signal, 3G or 4G uplink transmission, an LTE signal, or the like.

Preemptive automatic gain control (AGC) for interference mitigation

A Bluetooth Low Energy (BLE) device, having a demodulator configured to translate in-phase and quadrature components of a received BLE signal into a differential phase signal; an estimator configured to estimate a frequency offset of the differential phase signal; and a detector configured to detect information in the differential phase signal corrected by the estimated frequency offset.

Bluetooth low energy frequency offset and modulation index estimation

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Fremont, CA, United States of America

Jinyong Lee