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公开(公告)号：US09712345B2
公开(公告)日：2017-07-18
申请号：US15057646
申请日：2016-03-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jin-Hyun So , Soo-Bok Yeo , Se-Jin Kong , Seok-Joong Heo , Min-Goo Kim , Chae-Hag Yi
CPC classification number: H04L25/03019 , H04L25/0222
Abstract: A communication device and method of controlling the same are provided. A communication device includes a transceiver that receives a radio signal and a processor electrically connected to the transceiver, and is configured to store a data signal including data received through the radio signal in a first buffer according to a first delay period, store a channel signal including channel estimation information on a transmission channel of the radio signal in a second buffer according to a second delay period, determines a coefficient of a low pass filter and a group delay related to the low pass filter based on information related to the radio signal, and output at least one of the channel signals stored in the second buffer based on the determined group delay and the first delay period to perform equalizing.
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2.发明授权公开(公告)号：US09479360B2
公开(公告)日：2016-10-25
申请号：US14753650
申请日：2015-06-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Seok-Joong Heo , Soo-Bok Yeo , Jin-Hyun So
CPC classification number: H04L25/0226 , H04B7/01 , H04L25/0232 , H04L25/025 , H04L2025/03605
Abstract: A terminal including a transmitter and a receiver is provided. The receiver includes a pilot detection unit configured to detect a pilot signal from a received signal; a low-pass filter configured to filter noise from the pilot signal; a channel equalizer configured to perform channel equalization for data of the received signal, based on the filtered pilot signal; and a channel estimation controller configured to adaptively adjust at least one of a coefficient and an order of the low-pass filter, wherein the coefficient of the low-pass filter is controlled according to characteristics of the pilot signal, and the order of the low-pass filter is controlled according to transmission characteristics of the data of the received signal.
Abstract translation: 提供包括发射机和接收机的终端。 接收机包括：导频检测单元，被配置为从接收信号中检测导频信号; 低通滤波器，被配置为滤除来自导频信号的噪声; 信道均衡器，被配置为基于经滤波的导频信号对接收信号的数据执行信道均衡; 以及信道估计控制器，被配置为自适应地调整所述低通滤波器的系数和阶数中的至少一个，其中根据所述导频信号的特性来控制所述低通滤波器的系数，并且所述低通滤波器的顺序 通过滤波器根据接收信号的数据的传输特性进行控制。
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公开(公告)号：US20160294581A1
公开(公告)日：2016-10-06
申请号：US15057646
申请日：2016-03-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jin-Hyun SO , Soo-Bok Yeo , Se-Jin Kong , Seok-Joong Heo , Min-Goo Kim , Chae-Hag Yi
IPC: H04L25/03
CPC classification number: H04L25/03019 , H04L25/0222
Abstract: A communication device and method of controlling the same are provided. A communication device includes a transceiver that receives a radio signal and a processor electrically connected to the transceiver, and is configured to store a data signal including data received through the radio signal in a first buffer according to a first delay period, store a channel signal including channel estimation information on a transmission channel of the radio signal in a second buffer according to a second delay period, determines a coefficient of a low pass filter and a group delay related to the low pass filter based on information related to the radio signal, and output at least one of the channel signals stored in the second buffer based on the determined group delay and the first delay period to perform equalizing.
Abstract translation: 提供了一种通信装置及其控制方法。 通信设备包括：收发器，其接收无线电信号;以及处理器，电连接到所述收发器，并且被配置为根据第一延迟周期将包括通过所述无线电信号接收的数据的数据信号存储在第一缓冲器中，存储信道信号 包括根据第二延迟周期的第二缓冲器中的无线电信号的传输信道上的信道估计信息，基于与无线电信号有关的信息确定低通滤波器的系数和与低通滤波器相关的群延迟， 并且基于所确定的组延迟和第一延迟周期来输出存储在第二缓冲器中的信道信号中的至少一个，以执行均衡。
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公开(公告)号：US09843377B2
公开(公告)日：2017-12-12
申请号：US14282659
申请日：2014-05-20
Applicant: Samsung Electronics Co., Ltd.
Inventor： Soo-Bok Yeo , Dong-Sik Kim , Heun-Chul Lee
IPC: H04B7/0413 , H04B7/06 , H04W24/08 , H04W48/16 , H04L25/03
CPC classification number: H04B7/0669 , H04B7/0413 , H04L25/0328 , H04L2025/03426 , H04W24/08 , H04W48/16
Abstract: A method and an apparatus for measuring a link quality in a wireless communication are provided. The method of a receiver for measuring the link quality in the wireless communication system includes determining a modulation type for each of at least one reception stream received through at least one antenna based on a modulation order and channel information regarding each of signals transmitted from a plurality of transmission antennas, searching for a parameter corresponding to the determined modulation type from a pre-stored parameter table in which parameters for each modulation type are stored, and calculating a channel capacity for each of the at least one reception streams received through the at least one antenna by using the searched parameter.
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Patent Agency Ranking
公开(公告)号：US09826569B2
公开(公告)日：2017-11-21
申请号：US14711132
申请日：2015-05-13
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ho-Il Kim , Da-Hae Chong , Soo-Bok Yeo
CPC classification number: H04W76/048 , H04L1/1607 , H04L1/1671 , H04L1/1825 , H04L1/1838 , H04L43/0852 , H04W24/08 , H04W76/28
Abstract: A method of detecting indicator information received by a receiver of a wireless communication system is provided, and the method includes determining a threshold value that reduces costs incurred by a false alarm rate that decides discontinuous transmission (DTX) information transmitted from a transmitter as non-DTX information and a missed detection rate that decides non-DTX information transmitted from the transmitter as DTX information; and detecting the indicator information using the threshold value. The threshold value is determined based on a reception quality level for acknowledgement (ACK) information when the transmitter transmits the ACK information.
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公开(公告)号：US20150289205A1
公开(公告)日：2015-10-08
申请号：US14667075
申请日：2015-03-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ho-Il KIM , Shin-Woo KANG , Soo-Bok Yeo , Min-Goo Kim , Chae-Hag YI
CPC classification number: H04W52/0216 , H04L1/0053 , H04L1/1854 , H04W52/0229 , H04W52/028 , Y02D70/1262
Abstract: Methods and apparatuses are provided for reducing power consumption by early decoding. It is determined whether a predetermined decoding condition is satisfied upon expiration of a time unit in a transmission time interval. Decoding is performed on a signal that has been received through the time unit in the transmission time interval, when the predetermined decoding condition is satisfied. A controller outputs an instruction signal to a RF processor to set to a low-power mode during a remaining time period of the transmission time interval after the time unit in the transmission time interval, when the decoding is successful. Decoding is performed on the signal that has been received through the RF processor upon expiration of a last time unit of the transmission time interval regardless of the predetermined decoding condition, when the time unit is the last time unit in the transmission time interval.
Abstract translation: 提供了通过早期解码来降低功耗的方法和装置。 确定在传输时间间隔内的时间单元到期时是否满足预定的解码条件。 当满足预定的解码条件时，在传输时间间隔内通过时间单元接收到的信号进行解码。 当解码成功时，控制器在传输时间间隔内的发送时间间隔的剩余时间段内向RF处理器输出指令信号，以将其设置为低功率模式。 当时间单位是发送时间间隔中的最后一个时间单位时，对于在传输时间间隔的最后时间单位到期时已经通过RF处理器接收到的信号进行解码，而与预定的解码条件无关。
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公开(公告)号：US09882745B2
公开(公告)日：2018-01-30
申请号：US14750413
申请日：2015-06-25
Applicant: Samsung Electronics Co., Ltd.
Inventor： Dah-Hae Chong , Ho-Il Kim , Soo-Bok Yeo , Min-Goo Kim , Chae-Hag Yi
CPC classification number: H04L25/024 , H04J11/0069 , H04L27/0014 , H04L2027/0026
Abstract: Methods and apparatuses are provided for performing a cell search by a receiver in a communication system. A scrambling code is identified by correlating a common pilot channel with a first synchronization accumulation length based on a frame boundary and a code group. A multipath signal is sought by correlating the common pilot channel with a second synchronization accumulation length based on the frame boundary and the code group. A difference between, or a ratio of, a first maximum value of first correlation values acquired during identification of the scrambling code and a second maximum value of second correlation values acquired during searching for the multipath signal, is determined. It is determined whether a frequency offset exists by comparing the difference or the ratio with a predetermined threshold value. The frequency offset is estimated and the frequency offset is transmitted to a demodulator, when the frequency offset exists.
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8.发明授权公开(公告)号：US09755709B2
公开(公告)日：2017-09-05
申请号：US14733414
申请日：2015-06-08
Applicant: Samsung Electronics Co., Ltd.
Inventor： Dong-Sik Kim , Soo-Bok Yeo
IPC: H04B7/04 , H04B7/0413 , H04L25/02 , H04B17/336 , H04B7/06
CPC classification number: H04B7/0413 , H04B7/0632 , H04B17/336 , H04L25/0202
Abstract: A method and an apparatus for measuring channel quality in a MIMO system is provided. The method includes measuring a first SINR based on an assumption that a first detector is used, using a channel estimation value of a reception signal with respect to each of a plurality of space layers, and a second SINR for each of the plurality of space layers corresponding to a case where the plurality of space layers exist independently using the channel estimation value of the reception signal; determining a Log Likelihood Ratio of reception data based on an assumption that a second detector is used, with respect to each of the plurality of space layers; and generating channel quality information based on an assumption that the second detector is used, based on the first SINR and the second SINR with respect to each of the plurality of space layers, and the LLR.
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公开(公告)号：US09655043B2
公开(公告)日：2017-05-16
申请号：US14667075
申请日：2015-03-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ho-Il Kim , Shin-Woo Kang , Soo-Bok Yeo , Min-Goo Kim , Chae-Hag Yi
CPC classification number: H04W52/0216 , H04L1/0053 , H04L1/1854 , H04W52/0229 , H04W52/028 , Y02D70/1262
Abstract: Methods and apparatuses are provided for reducing power consumption by early decoding. It is determined whether a predetermined decoding condition is satisfied upon expiration of a time unit in a transmission time interval. Decoding is performed on a signal that has been received through the time unit in the transmission time interval, when the predetermined decoding condition is satisfied. A controller outputs an instruction signal to a RF processor to set to a low-power mode during a remaining time period of the transmission time interval after the time unit in the transmission time interval, when the decoding is successful. Decoding is performed on the signal that has been received through the RF processor upon expiration of a last time unit of the transmission time interval regardless of the predetermined decoding condition, when the time unit is the last time unit in the transmission time interval.
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