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公开(公告)号：US20190045542A1
公开(公告)日：2019-02-07
申请号：US16054198
申请日：2018-08-03
Applicant: MediaTek Inc.
Inventor： Weidong Yang
IPC: H04W74/08 , H04L5/00 , H04B7/0456 , H04W52/24
Abstract: Various examples and schemes pertaining to channel access in mobile communications are described. A processor of a second apparatus receives a probing signal from a first apparatus. The processor performs measurement of the probing signal. The processor generates a power-controlled clear-to-send (CTS) signal with respect to the measurement. The processor then transmits the power-controlled CTS signal to the first apparatus.
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公开(公告)号：US20180368115A1
公开(公告)日：2018-12-20
申请号：US16006079
申请日：2018-06-12
Applicant: Mediatek Inc.
Inventor： Chien-Chang Li , Chien Hwa Hwang , Yiju Liao , Weidong Yang , Pei-Kai Liao
IPC: H04W72/04
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 resource elements in a time slot. The UE then locates a first control resource set (CORESET) in the resource elements. The UE performs, when the UE is configured to obtain a group common down link control channel, a first blind decoding on the first CORESET to obtain the group common down link control channel based on a group identifier.
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63.发明申请公开(公告)号：US20180367197A1
公开(公告)日：2018-12-20
申请号：US16010432
申请日：2018-06-16
Applicant: MediaTek Inc.
Inventor： Weidong Yang , Lung-Sheng Tsai
IPC: H04B7/0456 , H04B7/0452 , H04B7/0417
Abstract: Techniques and examples pertaining to linear combination codebook design and channel state information (CSI) feedback in mobile communications are described. Frequency-dependent parameterization is supported to reduce signaling overhead in reporting beam selection and to enhance CSI resolution. Additionally, the number of candidates for beam selection depends on the strength of each beam to be selected such that more candidates are considered for a stronger beam than for a weaker beam. Moreover, amplitude quantization and/or phase quantization for beams of different strengths are different to reduce quantization error.
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公开(公告)号：US20180323928A1
公开(公告)日：2018-11-08
申请号：US15970828
申请日：2018-05-03
Applicant: MediaTek Inc.
Inventor： Weidong Yang
CPC classification number: H04L5/0048 , H04J2211/005 , H04L5/001 , H04W72/042 , H04W72/0453
Abstract: Various solutions for sounding reference signal (SRS) design with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a first SRS configuration. The apparatus may determine a first operating bandwidth part. The apparatus may further transmit a first SRS on the first operating bandwidth part according to the first SRS configuration. The first SRS configuration may correspond to the first operating bandwidth part.
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65.发明申请公开(公告)号：US20180323846A1
公开(公告)日：2018-11-08
申请号：US15971442
申请日：2018-05-04
Applicant: MediaTek Inc.
Inventor： Lung-Sheng Tsai , Weidong Yang
IPC: H04B7/06 , H04W8/22 , H04L25/02 , H04B7/0456
CPC classification number: H04B7/0617 , H04B7/0456 , H04B7/0626 , H04L25/0202 , H04W8/22
Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to provide for wireless techniques related to channel reciprocity. A channel estimation process between a mobile device and a base station is configured. The channel estimation process includes estimating a set of channel characteristics for an uplink direction of the wireless communication channel based on signals transmitted by the mobile device over the first set of antennas, and receiving a report associated with a set of channel characteristics for a downlink direction of the wireless communication channel from the mobile device, wherein the mobile device generates the report based on the estimated set of channel characteristics for the downlink direction of the wireless communication channel corresponding to the first set of antennas.
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Patent Agency Ranking
公开(公告)号：US20180279135A1
公开(公告)日：2018-09-27
申请号：US15927226
申请日：2018-03-21
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Chien-Chang Li , Yi-Ju Liao , Pei-Kai Liao , Weidong Yang
Abstract: A new design for physical downlink control channel (PDCCH) is proposed for the next generation 5G new radio systems. A UE receives the configuration of a default control resource set (CORESET) in MIB/SIB from its serving base station. The default CORESET contains both common search space and UE-specific search space for candidate PDCCH transmission. A PDCCH in a default CORESET is mapped to physical resource in a distributed or localized manner. Specifically, various REG-to-CCE mapping rules are proposed to improve frequency diversity gain, or frequency selectivity gain, or to reduce latency of PDCCH processing. Further, to facilitate analog beamforming in mmWave systems, the default CORESET is transmitted in a synchronization signal (SS) block associated with a corresponding analog beam direction.
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公开(公告)号：US10051662B2
公开(公告)日：2018-08-14
申请号：US15098409
申请日：2016-04-14
Applicant: MEDIATEK INC.
Inventor： Chien-Chang Li , Pei-Kai Liao , Weidong Yang , Bo-Si Chen
CPC classification number: H04W74/0816 , H04W74/006 , H04W74/0808
Abstract: A method of determining and configuring a maximal clear channel assessment (CCA) duration based on channel loading information for frame-based equipment (FBE) listen before talk (LBT) channel access mechanism is proposed. The CCA period is a random CCA duration generated out of the maximal CCA duration, which is configurable and is carried in the radio resource control (RRC) signaling or the beacon signal of LAA. To solve the collision problem in synchronous network and the unfairness problem in asynchronous network, the maximal duration of CCA should be adaptive based on the experienced channel occupancy status and/or the experienced synchronization difference within the network. First, the maximal duration of CCA should be adjusted according to the channel loading. Second, the maximal duration of CCA should be larger than the timing difference between eNBs or between UEs.
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公开(公告)号：US20180199317A1
公开(公告)日：2018-07-12
申请号：US15865229
申请日：2018-01-08
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Weidong Yang , Pei-Kai Liao , Wei-De Wu
CPC classification number: H04W72/042 , H04L1/0009 , H04L1/0041 , H04L1/0061 , H04L1/0072 , H04L1/1812 , H04W88/02
Abstract: A method to improve the design of new radio physical downlink control channel (NR-PDCCH) transmission and to reduce the false alarm rate of NR-PDCCH blind decoding is proposed. The downlink control information (DCI) bits are carried by NR-PDCCH to be transmitted to UEs after CRC attachment, channel encoding, interleaving, and modulation. The proposed NR-PDCCH design is separated into two parts. In a first part, a UE-ID or RNTI is used to derive a CRC mask or a scrambling sequence for CRC attachment of the DCI bits. In a second part, a UE-specific ID is used to derive an interleaver before or after channel encoding of the DCI bits. If the interleaver is placed before channel encoding, it takes the form of a bit interleaver. If the interleaver is placed after channel encoding, it takes the form of a bit interleaver or a channel interleaver.
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公开(公告)号：US20180198561A1
公开(公告)日：2018-07-12
申请号：US15865457
申请日：2018-01-09
Applicant: Mediatek Inc.
Inventor： Lung-Sheng Tsai , Weidong Yang
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 determines a plurality of messages containing channel state information to be reported to a base station. The UE also determines a priority level for each of the plurality of messages based on at least one predetermined rule. The UE further selects one or more messages from the plurality of messages based on priority levels of the plurality of messages. The UE then sends the selected one or more messages to the base station.
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公开(公告)号：US20180132248A1
公开(公告)日：2018-05-10
申请号：US15801282
申请日：2017-11-01
Applicant: MediaTek Inc.
Inventor： Weidong Yang , Bo-Si Chen
CPC classification number: H04W72/082 , H04L1/1812 , H04L1/1822 , H04L5/0053 , H04L5/0055 , H04W24/02 , H04W52/241 , H04W72/0406 , H04W72/14
Abstract: Concepts and examples pertaining to interference management in mobile communication networks and systems are described. A first node of a mobile communication network of a plurality of nodes receives a transmission grant from a second node of the mobile communication network. The first node then senses a condition of a communication channel. The first node further performs a number of operations based on a result of the sensing and a set of transmission parameters in the transmission grant. The number of operations includes determining whether or not to transmit a signal as well as adjusting transmission power of the first node.
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