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公开(公告)号：US10756880B2
公开(公告)日：2020-08-25
申请号：US16448912
申请日：2019-06-21
申请人： Intel Corporation
摘要： The present application is directed to an electronic device that has a receiver configured to receive data from a second electronic device and identify potential sync header locations within a portion of the data by performing a mutually exclusive or (XOR) logic operation on a plurality of sequential pairs of bits of the data. Additionally, the receiver is configured to identify sync headers in the data by determining which of the potential sync header locations is shared in subsequent portions of the data.
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52.发明申请公开(公告)号：US20200259687A1
公开(公告)日：2020-08-13
申请号：US16515248
申请日：2019-07-18
发明人： Nikolaus Klemmer , Amneh Mohammed Akour , Abhijit Anant Patki , Timothy Patrick Pauletti , Tarkesh Pande
摘要： An integrated circuit includes a bit slicing circuit with a processing circuit. The processing circuit receives discrete frequency power estimates based on an S-FSK waveform received by an S-FSK receiver associated with the bit slicing circuit. The discrete frequency power estimates are representative of digital logic levels in a series of data frames modulated using S-FSK to form the S-FSK waveform. Each data frame including at least one word. Each word includes bit periods. The processing circuit receives SNR parameters that represent a dynamic SNR for the respective discrete frequency power estimates in relation to the series of data frames. The processing circuit selects a bit slicing technique from a set of available bit slicing techniques to generate data bit values for bit periods of the discrete frequency power estimates based on the SNR parameters. A method for performing bit slicing in an S-FSK receiver is also disclosed.
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公开(公告)号：US10728000B2
公开(公告)日：2020-07-28
申请号：US16238268
申请日：2019-01-02
发明人： Jing Lei , Seyong Park , Renqiu Wang , Jing Jiang , Joseph Binamira Soriaga , Tingfang Ji , Naga Bhushan , Yi Huang , Ying Wang
摘要： Methods, systems, and devices for wireless communications are described that provide a number of groups of transmitters, each group of transmitters having at least one user equipment (UE), and each group of transmitters having an associated transmission opportunity (TXO) for transmission of a reference signal. A number of UEs may transmit transmissions to a base station according to non-orthogonal multiple access (NOMA) techniques in which two or more UEs concurrently transmit to the base station. Depending upon a number of UEs, a number of groups of transmitters, an overloading factor of NOMA transmissions, a system bandwidth, a time span of the reference signal TXO, or any combination thereof, a binary or non-binary orthogonal cover code (OCC) may be applied to transmitted reference signals, which the base station may use to identify reference signals from particular UEs.
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公开(公告)号：US10687186B1
公开(公告)日：2020-06-16
申请号：US16564417
申请日：2019-09-09
发明人： Xi Ju , Timothy J. Talty , Dan Shan , Fan Bai
摘要： A processor-implemented method by a message recipient in a vehicle or on a mobile device for decoding overlapping wireless messages is provided. The method comprises: receiving a first message from a first message sender that overlaps with a second message received from a second message sender; estimating, in a first signal recovery phase, a received data symbol (d0) from the first message and a channel impulse response (h1) corresponding to a data channel between the message recipient and the second message sender; estimating, in a second signal recovery phase, a received data symbol (d0)′ from the first message and a received data symbol (d1) from the second message; and reconstructing the first message from the estimated data symbol (d0) estimated in the first signal recovery phase and estimated data symbol (d0)′ estimated during the second signal recovery phase and reconstructing the second message from the estimated data symbol (d1) estimated during the second signal recovery phase.
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公开(公告)号：US20200153468A1
公开(公告)日：2020-05-14
申请号：US16680859
申请日：2019-11-12
申请人： Rambus Inc.
摘要： Decision feedback equalization (DFE) is used to help reduce inter-symbol interference (ISI) from a data signal received via a band-limited (or otherwise non-ideal) channel. A first PAM-4 DFE architecture has low latency from the output of the samplers to the application of the first DFE tap feedback to the input signal. This is accomplished by not decoding the sampler outputs in order to generate the feedback signal for the first DFE tap. Rather, weighted versions of the raw sampler outputs are applied directly to the input signal without further analog or digital processing. Additional PAM-4 DFE architectures use the current symbol in addition to previous symbol(s) to determine the DFE feedback signal. Another architecture transmits PAM-4 signaling using non-uniform pre-emphasis. The non-uniform pre-emphasis allows a speculative DFE receiver to resolve the transmitted PAM-4 signals with fewer comparators/samplers.
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公开(公告)号：US20200092815A1
公开(公告)日：2020-03-19
申请号：US16618788
申请日：2018-05-31
申请人： LG ELECTRONICS INC.
发明人： Suhwook KIM , Kiseon RYU , Jinyoung CHUN , Jeongki KIM , Jinsoo CHOI , Dongguk LIM , Eunsung PARK
摘要： A method for receiving a frame in a wireless LAN system according to the present embodiment comprises the steps of: receiving transmission speed information according to a transmission type of a wakeup packet for a WUR module from a second wireless terminal by a first wireless terminal including a main radio module and the WUR module, wherein the transmission speed information is set on the basis of at least three transmission speeds for the wakeup packet, and the transmission speed information is received on the basis of the main radio module; and receiving the wakeup packet on the basis of the transmission speed information from the second wireless terminal by the first wireless terminal, wherein a header of the wakeup packet includes a transmission type indicator for the transmission type of the wakeup packet, the wakeup packet is modulated according to an on-off keying (OOK) scheme, and the wakeup packet is received on the basis of the WUR module.
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57.发明申请公开(公告)号：US20200036409A1
公开(公告)日：2020-01-30
申请号：US16592525
申请日：2019-10-03
发明人： JUN-HO HUH , HO-RANG JANG , SEOK-CHAN KIM , IN-TAE KANG , SANG-HEON LEE , KWAN-YEOB CHAE , JUNE-HEE LEE , SANG-HUNE PARK , JAE-CHOL LEE , HYUNG-KWEON LEE
摘要： A modem chip communicates with a radio frequency (RF) chip and includes a digital interface configured to receive data including a plurality of samples from the RF chip based on digital communication. A logic block generates a frame synchronization signal based on a clock signal in the modem chip, provides the generated frame synchronization signal to the digital interface, and receives the plurality of samples in synchronization with the frame synchronization signal.
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公开(公告)号：US10516558B2
公开(公告)日：2019-12-24
申请号：US15807900
申请日：2017-11-09
发明人： Chang Soon Park , Young Jun Hong , Joon Seong Kang
摘要： A transmitter is configured to transmit a radio frequency (RF) signal to a receiver. The receiver is configured to receive the RF signal and decode data. Furthermore, a method of wireless communication is provided between the transmitter and the receiver, in which the transmitter transmits to the receiver the RF signal. A carrier phase of the RF signal is randomly converted. The receiver detects an envelope of the RF signal, and extracts data from the RF signal.
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59.发明申请公开(公告)号：US20190385036A1
公开(公告)日：2019-12-19
申请号：US16442811
申请日：2019-06-17
发明人： Maksimiljan Stiglic , Iztok Bratuz , Albin Pevec , Roman Benkovic
摘要： An integrated circuit, includes: an input configured to receive an induced signal that is modulated according to a protocol belonging to the group including protocols using ASK modulation and protocols using OOK modulation; a detection circuit configured to detect the modulation of the induced signal; a decoding circuit configured to detect the protocol; a configurable limiter configured to limit a level of the induced signal and having a first configuration adapted to protocols using ASK modulation and a second configuration adapted to protocols using OOK modulation; and a control circuit configured to set the limiter in the first configuration until a protocol is detected, and to switch the limiter from the first configuration to the second configuration in response to a protocol using OOK modulation being detected.
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60.发明授权公开(公告)号：US10476547B2
公开(公告)日：2019-11-12
申请号：US16037024
申请日：2018-07-17
发明人： Jun-Ho Huh , Ho-Rang Jang , Seok-Chan Kim , In-Tae Kang , Sang-Heon Lee , Kwan-Yeob Chae , June-Hee Lee , Sang-Hune Park , Jae-Chol Lee , Hyung-Kweon Lee
摘要： A modem chip communicates with a radio frequency (RF) chip and includes a digital interface configured to receive data including a plurality of samples from the RF chip based on digital communication. A logic block generates a frame synchronization signal based on a clock signal in the modem chip, provides the generated frame synchronization signal to the digital interface, and receives the plurality of samples in synchronization with the frame synchronization signal.
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