公开(公告)号：US10735226B2

公开(公告)日：2020-08-04

申请号：US16504633

申请日：2019-07-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chang Soon Park ,  Young Jun Hong ,  Sujit Jos ,  Young Soo Kim ,  Chandrashekhar Thejaswi Ps ,  Kiran Bynam ,  Manoj Choudhary

IPC: H04W28/18 ,  H04L25/03 ,  H04L27/04 ,  H04L25/49 ,  H04B1/709 ,  H04B1/7163

Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence. The ternary sequence includes elements of −1, 0, and 1.

公开(公告)号：US09787464B2

公开(公告)日：2017-10-10

申请号：US15172487

申请日：2016-06-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sujit Jos ,  Kiran Bynam ,  Ashutosh Deepak Gore ,  Chandrashekhar Thejaswi Ps ,  Chang Soon Park ,  Young Jun Hong ,  Manoj Choudhary

IPC: H04L7/02 ,  H04W56/00

CPC classification number: H04L7/02 ,  H04L7/0054 ,  H04W56/001

Abstract: 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.

公开(公告)号：US10257325B2

公开(公告)日：2019-04-09

申请号：US15016559

申请日：2016-02-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chandrashekhar Thejaswi Ps ,  Kiran Bynam ,  ChangSoon Park ,  Young-Jun Hong ,  Manoj Choudhary

IPC: H04L29/06 ,  H04L1/16 ,  H04L7/04 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00

Abstract: Provided is a method and apparatus of a receiver. The method and apparatus include generating a macro sequence of a length using a complementary-symmetry property. The method and apparatus also obtain a preamble sequence for a communication mode based on the macro sequence.

公开(公告)号：US09769848B2

公开(公告)日：2017-09-19

申请号：US14832811

申请日：2015-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Amar Prakash Azad ,  Sujit Jos ,  Sandhya Patil ,  Kannan Govindan ,  Kiran Bynam ,  Manoj Choudhary ,  Taeseok Kim ,  Youngsoo Kim

IPC: H04W4/00 ,  H04W74/08 ,  H04W48/10 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W48/10 ,  H04W84/12

Abstract: A method and apparatus for a collision-free carrier sense multiple access (CSMA) are provided. The method of a node associated with a beacon enabled carrier sense multiple access (CSMA)-based wireless communication network through an access point (AP) includes receiving a beacon from the AP, the beacon comprising a back-off prime number and a beacon random number, and generating a back-off interval based on the beacon random number, the back-off prime number, a mapped identification (ID) of the node, and a current time slot of a frame of the beacon. The method and apparatus provide a collision-free CSMA scheme for a beacon enabled CSMA-based wireless communication network. In the collision-free CSMA scheme, uniformly distributed back-off intervals may be generated in a distributed fashion at each node for a CSMA-based wireless communication network. The back-off intervals may be correlated among the nodes even though the nodes do not communicate with each other.

公开(公告)号：US09692588B2

公开(公告)日：2017-06-27

申请号：US15204195

申请日：2016-07-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kiran Bynam ,  Sujit Jos ,  PS Chandrashekhar Thejaswi ,  ChangSoon Park ,  Jinesh P. Nair ,  Young-Jun Hong ,  Youngsoo Kim ,  Manoj Choudhary

IPC: H04L7/00 ,  H04L7/04 ,  H04B1/30 ,  H04B1/10 ,  H04L27/06 ,  H04L27/00 ,  H04L7/033 ,  H04B1/707 ,  H04B1/7183 ,  H04L25/00

CPC classification number: H04L7/0079 ,  H04B1/10 ,  H04B1/30 ,  H04B1/707 ,  H04B1/7183 ,  H04L7/0033 ,  H04L7/033 ,  H04L7/041 ,  H04L25/00 ,  H04L27/0014 ,  H04L27/06 ,  H04L27/063 ,  H04L2027/0028 ,  H04L2027/0067

Abstract: A method of performing synchronization in a super regenerative receiver (SRR) includes setting a quench rate of the SRR to a value of 1.5 times a chip rate of an incoming signal, acquiring an expected preamble sequence of an arbitrary sample set among a plurality of possible sample sets, acquiring an expected start frame delimiter (SFD) sequence for all of the possible sample sets to achieve frame synchronization, computing respective correlation metrics for bits of the expected SFD sequence while the expected SFD sequence is acquired for all of the possible sample sets, calculating a decision metric based on the correlation metrics in response to an SFD sequence being detected for one or more of the possible sample sets, and identifying a best sample set for demodulating the incoming signal among all of the possible sample sets based on the decision metric to achieve pulse synchronization.

公开(公告)号：US10256933B2

公开(公告)日：2019-04-09

申请号：US15033400

申请日：2014-10-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang Soon Park ,  Young Jun Hong ,  Jinesh P Nair ,  Joon Seong Kang ,  Young Soo Kim ,  Sujit Jos ,  Manoj Choudhary

IPC: H04J13/16 ,  H04J13/00 ,  H04J13/10 ,  H04L25/49 ,  H04B1/04 ,  H04B1/7097 ,  H04L27/04 ,  H04L27/38 ,  H04L27/233 ,  H04L1/24 ,  H04L27/26 ,  H04L27/36

Abstract: A method and device for transmitting a preamble sequence is disclosed. A transmitter according to an embodiment may extract a first sequence for a non-coherent receiver and a second sequence for a coherent receiver, from ternary preamble sequences including elements −1, 0 and 1, and map the first sequence and the second sequence to a preamble including a plurality of bits to generate a third sequence that the non-coherent receiver and coherent receiver support.

公开(公告)号：US09998251B2

公开(公告)日：2018-06-12

申请号：US15033391

申请日：2014-10-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinesh Parameshwaran Nair ,  Young Jun Hong ,  Chang Soon Park ,  Sujit Jos ,  Young Soo Kim ,  Manoj Choudhary

IPC: H04J13/10 ,  H04B1/707 ,  H04B1/04 ,  H04J13/00 ,  H04L27/04 ,  H04J13/16 ,  H04L25/49 ,  H04B1/7097

CPC classification number: H04J13/16 ,  H04B1/0475 ,  H04B1/7097 ,  H04B2201/70707 ,  H04B2201/709709 ,  H04J13/0011 ,  H04J13/0022 ,  H04J13/0044 ,  H04J13/10 ,  H04J13/107 ,  H04L25/4923 ,  H04L27/04

Abstract: Embodiments herein achieve a method and system for selecting non-coherent spreading sequences with binary alphabets {0, 1} with variable spreading factors. The method generates circular shift equivalent sets of spreading sequences by circularly shifting base sequences with elements {1, 0} and having at least one variable spreading factor. The method determines whether each spreading sequence in the circular shift equivalent set meets pre-defined spreading sequence criteria. The spreading sequence criteria comprise balanced criteria, a non- repetition criteria, non-circular criteria, and conjugate criteria. Furthermore, the method selects the spreading sequence from expansions of at least one spreading sequence from the circular shift equivalent sets in response to determining that the spreading sequences in the circular shift equivalent sets meets the pre-defined spreading sequence criteria.

公开(公告)号：US09967114B2

公开(公告)日：2018-05-08

申请号：US15033352

申请日：2014-10-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang Soon Park ,  Young Jun Hong ,  Sujit Jos ,  Young Soo Kim ,  Chandrashekhar Thejaswi Ps ,  Kiran Bynam ,  Manoj Choudhary

IPC: H04B1/707 ,  H04L25/03 ,  H04L25/49 ,  H04L27/04 ,  H04B1/709

CPC classification number: H04L25/03834 ,  H04B1/709 ,  H04L25/03312 ,  H04L25/4923 ,  H04L27/04

Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence. The ternary sequence includes elements of −1, 0, and 1.

公开(公告)号：US09742600B2

公开(公告)日：2017-08-22

申请号：US14840524

申请日：2015-08-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinesh P. Nair ,  Ashutosh Deepak Gore ,  Kiran Bynam ,  ChangSoon Park ,  Seokju Yun ,  Young-Jun Hong ,  Manoj Choudhary

IPC: H04L25/06

CPC classification number: H04L25/061

Abstract: 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.

公开(公告)号：US09240816B2

公开(公告)日：2016-01-19

申请号：US14455517

申请日：2014-08-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinesh Parameshwaran Nair ,  Kiran Bynam ,  Manoj Choudhary ,  Pradeep Dwarakanath ,  Youngjun Hong

IPC: H04L7/06 ,  H04B1/30 ,  H04L7/04 ,  H04L25/00

CPC classification number: H04B1/30 ,  H04L7/041 ,  H04L25/00

Abstract: A method and apparatus are provided to generate a preamble signal. A peak of each pulse of the preamble signal is synchronized with a sensitivity region of a super regenerative receiver (SRR). The method and apparatus are configured to transmit, to the SRR, a data packet comprising the preamble signal, wherein the data packet is a baseband signal corresponding to the preamble signal.

Abstract translation: 提供了一种生成前置码信号的方法和装置。 前导码信号的每个脉冲的峰值与超再生接收机（SRR）的灵敏度区域同步。 所述方法和装置被配置为向所述SRR发送包括所述前导信号的数据分组，其中所述数据分组是与所述前导码信号相对应的基带信号。