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公开(公告)号：US20200053646A1
公开(公告)日：2020-02-13
申请号：US16537537
申请日：2019-08-10
Applicant: MediaTek Inc.
Inventor： Chun-Hsuan Kuo , Jiann-Ching Guey , Chiou-Wei Tsai , Chien-Chang Li , Cheng Rung Tsai
Abstract: Various solutions for wake-up signal and preamble design for mobile communications are described. An apparatus, while in a first mode of operation, receives a wake-up signal (WUS) from a network. In response to receiving the WUS, the apparatus switches to a second mode of operation from the first mode of operation. The apparatus then detects a preamble in downlink (DL) transmissions from the network. In response to detecting the preamble, the apparatus monitors a physical downlink control channel (PDCCH) to check for an uplink (UL) transmission grant for the apparatus from the network.
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公开(公告)号：US20230262762A1
公开(公告)日：2023-08-17
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
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：US11672012B2
公开(公告)日：2023-06-06
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
CPC classification number: H04W74/0816 , H04W24/00 , H04W48/16 , H04W72/12 , H04W72/23 , H04W74/006 , H04L5/001
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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公开(公告)号：US20210051498A1
公开(公告)日：2021-02-18
申请号：US16930673
申请日：2020-07-16
Applicant: Mediatek Inc.
Inventor： Chiou-Wei Tsai , Jiann-Ching Guey , Hsuan-Li Lin , Chun-Hsuan Kuo
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, through a non-physical layer signaling, a configuration indicating to receive a first reference signal in a set of OFDM symbols in a first slot. The UE attempts to detect a physical layer signaling in the first slot or in a second slot prior to the first slot. The UE refrains from conducting measurements of the first reference signal, when the physical layer signaling is detected by the UE and includes a first indication.
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公开(公告)号：US10389558B2
公开(公告)日：2019-08-20
申请号：US15616277
申请日：2017-06-07
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chao-Cheng Su
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
16.发明申请公开(公告)号：US20180248737A1
公开(公告)日：2018-08-30
申请号：US15903299
申请日：2018-02-23
Applicant: MediaTek Inc.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Chao-Cheng Su , Lung-Sheng Tsai
CPC classification number: H04L27/2655 , H04J11/0069 , H04J13/0062 , H04J13/22 , H04L5/0007 , H04L27/2613 , H04L27/2657 , H04L27/2662 , H04L27/2672 , H04L27/2675 , H04W72/042
Abstract: Techniques, schemes and examples pertaining to using even-length sequence for synchronization and device identification in wireless communications are described. A processor of an apparatus can generate a signal containing at least an even-length Zadoff-Chu (ZC) sequence and transmit the signal to a receiving device. The even-length ZC sequence identifies the apparatus, carries information for signaling, or functions in time-frequency synchronization. The processor can also receive a signal containing at least an even-length ZC sequence and detect the even-length ZC sequence in the received signal.
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公开(公告)号：US20170118055A1
公开(公告)日：2017-04-27
申请号：US15299116
申请日：2016-10-20
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo , Pei-Kai Liao
CPC classification number: H04L27/2607 , H04J11/0046 , H04L1/0003 , H04L1/0005 , H04L1/0006 , H04L1/0009 , H04L1/0042 , H04L1/0084 , H04L5/0044 , H04L5/0073 , H04L5/0094 , H04L25/03821 , H04L27/2602 , H04W72/042
Abstract: A flexible time-frequency grid is proposed. A baseline OFDM format consisting of CP and a following symbol interval is scaled in time to generate a set of extended OFDM frame formats. The set of extended OFDM frame formats is further extended by scaling in bandwidth. The OFDM frame formats and the extended OFDM frame format set are used dynamically in the wireless communication system in accordance to the changes of the communication environment. Furthermore, various methods are proposed to avoid and/or combat performance degradation of the resource elements (REs) interfered by non-orthogonal REs in the neighborhood due to different OFDM symbol configurations in the flexible time-frequency grid.
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18.发明授权公开(公告)号：US10887926B2
公开(公告)日：2021-01-05
申请号：US16169169
申请日：2018-10-24
Applicant: Mediatek Inc.
Inventor： Jiann-Ching Guey , Chun-Hsuan Kuo
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and UE are provided. The UE receive a configuration from a base station, the configuration indicating one or more constraints for constructing and transmitting a multiple-access signature. The UE then constructs the multiple-access signature in accordance with the one or more constraints. The UE autonomously transmits the multiple-access signature to the base station in accordance with the one or more constraints.
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19.发明授权公开(公告)号：US10530565B2
公开(公告)日：2020-01-07
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：US20190313455A1
公开(公告)日：2019-10-10
申请号：US16377118
申请日：2019-04-05
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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