Samsung Electronics Co., Ltd.

Qualcomm Incorporated

Ashutosh Deepak Gore

Kiran Bynam

Young Jun Hong

Chang Soon Park

Jinesh Parameshwaran Nair

Sujit Jos

Tuhin Chakraborty

Swaroop Venkatesh

Manoj Choudhary

Chandrashekhar Thejaswi Ps

Rajat Sapra

Youngsoo Kim

Yong-Seok Park

Ok-Seon Lee

Seok Ju Yun

Karthik Muralidhar

Young-Jun Hong

Sin-Seok Seo

Arzad Alam Kherani

Anand Sudhakar Chiddarwar

ChangSoon Park

Seokju Yun

Hari Krishna Boddapati

A method to detect a packet includes: receiving an input sequence including preambles; detecting a transition from a noise period to a signal period in the input sequence; dynamically adjusting a gain of the input sequence in response to the signal period being initiated; and distinguishing an intended packet from other packets, among packets received in the preambles.

Method and apparatus for detecting packet

Wireless communications systems and methods related to intra-packet rate adaptation are provided. A first wireless communication device communicates, with a second wireless communication device, an intra-packet modulation coding scheme (MCS) switching configuration. The first wireless communication device receives, from the second wireless communication device, a communication signal including a first data packet based on the intra-packet MCS switching configuration. The first data packet includes at least a first portion encoded by a first MCS and a second portion encoded by a second MCS different from the first MCS.

Intra-packet rate adaptation for high capacity

Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determine an odd-exponent modulation constellation order for a group of bits; determine a parity bit location for the group of bits based at least in part on the odd-exponent modulation constellation order; and map the group of bits, with a parity bit in the parity bit location, to an odd-exponent modulation constellation of the odd-exponent modulation constellation order.

Techniques and apparatuses for odd-exponent quadrature amplitude modulation parity bit selection

Analog heterogeneous tags and methods and systems to configure the tags are described. The present invention relates to the field of electronic devices and more particularly to electronic tag devices using analog technology. Embodiments herein disclose a tag that can work in at least one of transmit only, receive only or transmit/receive modes and can transmit/receive using a plurality of communication technologies without the complex stack functionality with minimal hardware and memory requirements, wherein the tag uses I/Q samples corresponding to each technology pre-stored on the tag. Embodiments herein also disclose methods and systems for configuring the electronic tags using a configuration device, wherein the configuration device provides the I/Q samples of each technology to the tag.

Analog heterogeneous connectivity tags and methods and systems to configure the tags

Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may identify groups of bits of a particular size; map the groups of bits, with corresponding parity bits, to an even-exponent modulation constellation to generate an odd-exponent modulation constellation, wherein at least one corresponding parity bit, of the corresponding parity bits, is added to a group of bits, of the groups of bits, for the mapping; and transmit a signal based at least in part on the odd-exponent modulation constellation. Numerous other aspects are provided.

Techniques and apparatuses for odd-exponent quadrature amplitude modulation

Disclosed is a method and apparatus to detect an intended packet by a sliding intermediate frequency (SIF) coherent ultra low power (ULP) wireless receiver. The method includes detecting a transition from a noise period to a signal period in a pair of input sequences received, dynamically adjusting a gain of the pair of input sequences in response to the signal period being initiated, distinguishing an intended packet from packets received in preambles included in the pair of input sequences, and compensating for a carrier frequency offset of the intended packet in the signal period.

A method to compensate a carrier frequency offset (CFO) in a receiver is disclosed. The method includes receiving discrete time samples, obtaining a sample vector from the received discrete time samples, obtaining tentative CFO estimates based on the sample vector, selecting a CFO having a greatest compensation coefficient from the tentative CFO estimates, and compensating the CFO in the received discrete time samples.

Method of compensating carrier frequency offset in receivers

Examples provide a method of performing automatic gain control (AGC) in a wireless receiver, the method including computing, by an energy detection (ED) circuit, a variance in an output signal of an analog-to-digital converter (ADC), and activating, by the ED circuit, an AGC circuit to adjust a gain of at least one component in a radio frequency integrated chip (RFIC) in response to the variance exceeding a threshold. Examples also provide for a wireless receiver that implements such a method.

Method and apparatus for automatic gain control in wireless receiver

A method for compensating for a sampling clock-offset includes calculating a positive threshold and a negative threshold of pulse-shaped data symbols to be received, calculating a positive sum ratio and a negative sum ratio from received samples, and compensating for a sampling clock-offset in response to the positive sum ratio being less than or equal to the positive threshold and the negative sum ratio being less than or equal to the negative threshold.

Method and apparatus for compensating for sampling clock-offset

Provided is a method of estimating a Direct Current (DC) offset in an Ultra-Low Power (ULP) receiver. The method includes receiving a signal from an output of an Analog to Digital Converter (ADC) in the ULP receiver. The signal includes a correlated variable DC component for at least one of an in-phase arm and a quadrature arm of the ULP receiver. The method also includes estimating a DC offset compensation parameter in a plurality of phases for a plurality of stages based on the received signal such that the estimating includes calculating the DC offset compensation parameter in a magnitude estimation phase for the plurality of stages and calculating the DC offset compensation parameter in a sign estimation phase for the plurality of stages.

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Bengaluru, India

Ashutosh Deepak Gore