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公开(公告)号：US10779293B2
公开(公告)日：2020-09-15
申请号：US16659085
申请日：2019-10-21
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yingyang Li , Chengjun Sun
Abstract: Disclosed is a method for communication by a user equipment in a wireless communication system, including receiving configuration information from a base station, performing measurement of a downlink channel based on the configuration information, identifying a channel quality indicator (CQI) table among a plurality of CQI tables including a first CQI table which includes CQI indices related to a 256 quadrature amplitude modulation (QAM) scheme and a second CQI table which does not include a CQI index related to the 256 QAM scheme, identifying the CQI index in the identified CQI table based on the measurement, and reporting the identified CQI index to the base station, wherein each of the plurality of CQI tables includes CQI indices indicating modulation schemes and code rates, and wherein a 64 QAM scheme with a highest coding rate indicated in the second CQI table is absent in the first CQI table.
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公开(公告)号：US10728863B2
公开(公告)日：2020-07-28
申请号：US16211783
申请日：2018-12-06
Applicant: Samsung Electronics Co., Ltd.
Inventor： Shichang Zhang , Bin Yu , Chengjun Sun
Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.
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公开(公告)号：US10716108B2
公开(公告)日：2020-07-14
申请号：US15525283
申请日：2015-11-06
Applicant: Samsung Electronics Co., Ltd. , TSINGHUA UNIVERSITY
Inventor： Feifei Gao , Jingxing Fu , Yingyang Li , Chengjun Sun
Abstract: The present application discloses a cellular network access method and apparatus. An embodiment of the cellular network access method for a base station comprises: receiving, from a pair of D2D devices, a result of a spectrum detection which indicates a load level of a detected spectrum; selecting a cellular communication mode or a D2D communication mode based on the received result of the spectrum detection; and notifying the pair of D2D devices of the selected mode. Through dynamic switching between the cellular communication mode and the D2D communication mode, it is possible to make full use of the available spectrum, thereby increasing the throughput of the system.
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公开(公告)号：US10660088B2
公开(公告)日：2020-05-19
申请号：US15375860
申请日：2016-12-12
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hong He , Yingyang Li , Chengjun Sun
Abstract: Embodiments of the present invention disclose an ACK/NACK feedback method in a wireless communication system, including: determining, by a UE, number of public sub-frames, all of which are uplink sub-frame in PCC and any SCC sub-frames of any radio frame in frame structure configurations according to the frame structure configurations of the PCC and any SCC; selecting, by the UE, a configuration, uplink sub-frames of which merely include sub-frames corresponding to the determined number of public sub-frames from existing seven kinds of frame structure configurations; and feeding back, by the UE, to a eNB ACK/NACK information corresponding to PDSCH in the SCC on the PCC adopting a timing relationship between the PDSCH and the ACK/NACK corresponding to the selected configuration. With the ACK/NACK feedback method of the present invention, the UE may adaptively feed back the ACK/NACK according to the configured frame structure configuration of the CC, the carrier aggregation between Bands of different frame structure configurations is effectively supported and the coexistence and performance optimization of different communication systems is implemented without limiting the number of amplifiers of the UE.
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55.发明授权公开(公告)号：US10531409B2
公开(公告)日：2020-01-07
申请号：US15025534
申请日：2014-09-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Shichang Zhang , Bin Yu , Chengjun Sun
Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.
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Patent Agency Ranking
公开(公告)号：US10419177B2
公开(公告)日：2019-09-17
申请号：US15466747
申请日：2017-03-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Chen Qian , Bin Yu , Qi Xiong , Chengjun Sun
IPC: H04J3/00 , H04L5/00 , H04B7/0452 , H04W72/04
Abstract: A method of signal transmitting in a filtering-based carrier modulation system, includes determining, by a transmitter, a reference signal pattern for each subband of an available frequency band of a system, and transmitting reference signal pattern information to a receiver, inserting, by the transmitter, reference signals on corresponding time-frequency resources according to the reference signal pattern of each subband, performing a carrier modulation and time domain filtering to data signals and the reference signals, and transmitting a processed signal of each subband, wherein the reference signals are used for estimating a frequency domain response of an equivalent channel consisting of a time domain filter and a physical channel from the transmitter to the receiver. The present disclosure also provides a receiving method, a transmitter and a receiver. According to the present disclosure, the storage requirement and detecting complexity of the receiver may be decreased greatly.
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公开(公告)号：US20190109690A1
公开(公告)日：2019-04-11
申请号：US16210745
申请日：2018-12-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yingyang LI , Chengjun Sun
Abstract: The present disclosure provides a data transmission method. A UE receives CSI-RS configuration signaling from a base station, measuring and reporting CSI according to the CSI-RS configuration signaling. The UE receives scheduling signaling from the base station, and receives downlink data according to the scheduling signaling. The method provides a way of measuring and feeding back CSI with reduced CSI-RS overhead. The method can configure DMRS ports in a flexible manner. Therefore, performances of MU-MIMO can be optimized.
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公开(公告)号：US20170325229A1
公开(公告)日：2017-11-09
申请号：US15525283
申请日：2015-11-06
Applicant: Samsung Electronics Co., Ltd. , TSINGHUA UNIVERSITY
Inventor： Feifei Gao , Jingxing Fu , Yingyang Li , Chengjun Sun
Abstract: The present application discloses a cellular network access method and apparatus. An embodiment of the cellular network access method for a base station comprises: receiving, from a pair of D2D devices, a result of a spectrum detection which indicates a load level of a detected spectrum; selecting a cellular communication mode or a D2D communication mode based on the received result of the spectrum detection; and notifying the pair of D2D devices of the selected mode. Through dynamic switching between the cellular communication mode and the D2D communication mode, it is possible to make full use of the available spectrum, thereby increasing the throughput of the system.
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公开(公告)号：US20170279579A1
公开(公告)日：2017-09-28
申请号：US15466747
申请日：2017-03-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Chen Qian , Bin Yu , Qi Xiong , Chengjun Sun
IPC: H04L5/00 , H04W72/04 , H04B7/0452
CPC classification number: H04L5/0048 , H04B7/0452 , H04L5/0023 , H04W72/0406
Abstract: A method of signal transmitting in a filtering-based carrier modulation system, includes determining, by a transmitter, a reference signal pattern for each subband of an available frequency band of a system, and transmitting reference signal pattern information to a receiver, inserting, by the transmitter, reference signals on corresponding time-frequency resources according to the reference signal pattern of each subband, performing a carrier modulation and time domain filtering to data signals and the reference signals, and transmitting a processed signal of each subband, wherein the reference signals are used for estimating a frequency domain response of an equivalent channel consisting of a time domain filter and a physical channel from the transmitter to the receiver. The present disclosure also provides a receiving method, a transmitter and a receiver. According to the present disclosure, the storage requirement and detecting complexity of the receiver may be decreased greatly.
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公开(公告)号：US09722737B2
公开(公告)日：2017-08-01
申请号：US14411718
申请日：2013-06-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jingxing Fu , Chengjun Sun , Yingyang Li
CPC classification number: H04L1/1893 , H04L1/1607 , H04L1/1812 , H04L1/1854 , H04L1/187
Abstract: A method and an apparatus for sending Hybrid Automatic Repeat Request acknowledgement (HARQ-ACK) feedback information are provided. The User Equipment (UE) receives a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH) sent by a base station, determines a number of downlink subframes corresponding to the HARQ-ACK feedback information sent in the PUSCH of each CC in the current uplink subframe, the Uplink (UL) Downlink Assignment Index (UL DAI) obtained from the UL Grant of the PDCCH, a sum of the number of PDSCH subframes received from a HARQ-ACK bundling window and a number of PDCCHs indicating the downlink SPS releasing, and a size of the HARQ-ACK bundling window, and sends HARQ-ACK feedback information of each CC via the PUSCH in the current uplink subframe. A number of bits of the HARQ-ACK feedback information of each CC is determined according to the number of the downlink subframes.
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