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公开(公告)号：US11336403B2
公开(公告)日：2022-05-17
申请号：US16582477
申请日：2019-09-25
Applicant: MEDIATEK INC.
Inventor： Cheng-Rung Tsai , Chun-Hsuan Kuo
Abstract: A method of a hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback mechanism includes receiving at a user equipment (UE) one or more first downlink control informations (DCIs) associated with first downlink transmissions belonging to a first HARQ-ACK feedback group. One of the first DCIs requests one or more second HARQ-ACK feedback groups to be acknowledged over a HARQ-ACK transmission opportunity (TxOP). A HARQ-ACK feedback for the first HARQ-ACK feedback group and the one or more second HARQ-ACK feedback groups is transmitted over the HARQ-ACK TxOP.
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公开(公告)号：US11057780B2
公开(公告)日：2021-07-06
申请号：US16536576
申请日：2019-08-09
Applicant: Mediatek Inc.
Inventor： Chiou-Wei Tsai , Jiann-Ching Guey , Chun-Hsuan Kuo , Cheng-Rung Tsai
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, from a base station, one or more downlink reference signals on an unlicensed carrier. The UE determines that the base station occupies the unlicensed carrier for a predetermined first channel occupancy time based on the one or more downlink reference signals. The UE receives, on the unlicensed carrier and in the predetermined first channel occupancy time, a control burst including a plurality of down link control channels. The UE attempts to decode a first down link control channel directed to the UE from the control burst.
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公开(公告)号：US20190312660A1
公开(公告)日：2019-10-10
申请号：US16377123
申请日：2019-04-05
Applicant: MediaTek Inc.
Inventor： Chun-Hsuan Kuo , Jiann-Ching Guey , Chiou-Wei Tsai , Ming-Po Chang , Cheng-Rung Tsai
Abstract: Techniques and examples of channel multiplexing within interlace for New Radio (NR) unlicensed spectrum (NR-U) operation are described. An apparatus (e.g., user equipment (UE)) determines which sub-interlace of multiple sub-interlaces in each of a plurality of interlaces is assigned to the apparatus. The apparatus then performs an uplink (UL) transmission to a wireless network in an NR-U using the assigned sub-interlace in each of the plurality of interlaces. Each of the plurality of interlaces may be divided into respective multiple sub-interlaces with channel multiplexing.
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4.发明申请公开(公告)号：US20180254885A1
公开(公告)日：2018-09-06
申请号：US15906373
申请日：2018-02-27
Applicant: MediaTek Inc.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chao-Cheng Su
Abstract: Techniques, schemes and examples pertaining to sequence design for synchronization and device identification in mobile communication systems are described. A processor of an apparatus generates a set of root sequences and also generates a set of signature sequences from the set of root sequences. The processor then transmits a signal comprising one or more of the signature sequences to a receiving device via a wireless channel. Each signature sequence of the set of signature sequences identifies the apparatus.
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公开(公告)号：US20180097677A1
公开(公告)日：2018-04-05
申请号：US15616277
申请日：2017-06-07
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chao-Cheng Su
CPC classification number: H04L27/18 , H04L5/005 , H04L25/0226 , H04L27/261 , H04L27/2615
Abstract: Aspects of the disclosure provide an apparatus that includes a baseband processing circuit and a transmitting circuit. The baseband processing circuit is configured to encode a reference signal based on a specific sequence to generate a digital stream. The specific sequence has non-zero values at selected positions, and the number of coincidences of non-zero value positions between the specific sequence and a shifted copy of the specific sequence is smaller than a threshold. The transmitting circuit is configured to transmit wireless signals in response to the digital stream.
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Patent Agency Ranking
公开(公告)号：US12022510B2
公开(公告)日：2024-06-25
申请号：US18138923
申请日：2023-04-25
Applicant: MediaTek Inc.
Inventor： Chiou-Wei Tsai , Chun-Hsuan Kuo
IPC: H04W74/08 , H04W72/0446 , H04W72/1268 , H04W74/0808 , H04W74/0833
CPC classification number: H04W74/0808 , H04W72/0446 , H04W72/1268 , H04W74/0833
Abstract: Various examples and schemes pertaining to uplink (UL) designs for New Radio (NR) unlicensed spectrum (NR-U) operation in mobile communications are described. An apparatus as a user equipment (UE) receives, from a network node, a scheduling of a plurality of starting slots for an UL transmission by the apparatus. The apparatus performs a listen-before-talk (LBT) procedure and, based on a result of the LBT procedure, the apparatus performs the UL transmission with an initial slot of the UL transmission in one of the plurality of starting slots.
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公开(公告)号：US20240178937A1
公开(公告)日：2024-05-30
申请号：US18517186
申请日：2023-11-22
Applicant: MEDIATEK INC.
Inventor： Chun-Hsuan Kuo
CPC classification number: H04L1/006 , H04L27/2627 , H04L27/264
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a transmitter. The transmitter receives a plurality of input bits. The transmitter encodes the plurality of input bits using a Trellis code to generate a plurality of output symbols. The Trellis code is configured to confine amplitude fluctuations between consecutive output symbols. The transmitter pulse shapes the output symbols in a frequency domain. The transmitter maps the pulse shaped symbols onto a plurality of subcarriers. The transmitter generates a time domain waveform based on the mapped symbols. The transmitter transmits the time domain waveform.
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公开(公告)号：US20240178936A1
公开(公告)日：2024-05-30
申请号：US18517169
申请日：2023-11-22
Applicant: MEDIATEK INC.
Inventor： Chun-Hsuan Kuo
CPC classification number: H04L1/006 , H04L1/0054 , H04L25/03203
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a receiver. The receiver receives, from a transmitter, a signal carrying a constellation symbol. The receiver processes the received signal by a soft symbol demapper to generate a first soft output of a first set of bits and a second soft output of a second set of bits. The receiver processes the second soft output by a soft syndrome former to generate a third soft output of a third set of bits. The soft syndrome former corresponds to a shaping code applied at the transmitter. The receiver recovers bits represented by the constellation symbol based on the first soft output and the third soft output.
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公开(公告)号：US11490428B2
公开(公告)日：2022-11-01
申请号：US16368853
申请日：2019-03-29
Applicant: MediaTek Inc.
Inventor： Chiou-Wei Tsai , Jiann-Ching Guey , Chun-Hsuan Kuo
Abstract: Techniques and examples of design for initial access in New Radio (NR) unlicensed spectrum (NR-U) are described. An apparatus receives from a base station of a wireless network which transmits one or multiple synchronization signal and PBCH blocks (SS/PBCH blocks) whose indices are indicated in a cyclic-wrapped order subject to a result of listen-before-talk (LBT) in NR-U. The apparatus also transmits a random access request on random access channel (RACH) resources allocated by the base station.
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公开(公告)号：US20210266968A1
公开(公告)日：2021-08-26
申请号：US17315333
申请日：2021-05-09
Applicant: MediaTek Inc.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chien-Hwa Hwang , Chiou-Wei Tsai , Ming-Po Chang
Abstract: Techniques and examples of efficient detection of a transmission session in New Radio unlicensed spectrum (NR-U) are described. An apparatus (e.g., user equipment (UE)) detects presence of an indication from a base station of a wireless network in an NR-U. The apparatus determines that a transmission opportunity (TXOP) follows the indication responsive to the detecting. The apparatus then receives a downlink (DL) transmission in the NR-U from the base station during the TXOP.
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