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21.发明申请公开(公告)号：US20160309511A1
公开(公告)日：2016-10-20
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.
Abstract translation: 提出了一种基于用于基于帧的设备（FBE）监听（LBT）信道访问机制的信道加载信息来确定和配置最大清除信道评估（CCA）持续时间的方法。 CCA周期是从最大CCA持续时间产生的随机CCA持续时间，其可配置并且在无线电资源控制（RRC）信令或LAA的信标信号中携带。 为了解决异步网络中的碰撞问题和异步网络中的不公平问题，基于有经验的信道占用状态和/或网络内有经验的同步差异，CCA的最大持续时间应该是自适应的。 首先，CCA的最大持续时间应根据通道负载进行调整。 第二，CCA的最大持续时间应该大于eNB之间或UE之间的定时差。
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公开(公告)号：US11622284B2
公开(公告)日：2023-04-04
申请号：US16926864
申请日：2020-07-13
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Chien-Chang Li , Yi-Ju Liao , Pei-Kai Liao , Weidong Yang
IPC: H04L5/00 , H04W16/28 , H04W72/044 , H04L1/1829 , H04W72/04 , H04W74/08 , H04B7/06
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：US11616552B2
公开(公告)日：2023-03-28
申请号：US17114851
申请日：2020-12-08
Applicant: Mediatek Inc.
Inventor： Lung-Sheng Tsai , Weidong Yang
IPC: H04B7/06 , H04B17/382 , H04W24/10 , H04W72/12
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 that the UE possesses T processing units for calculation of channel state information (CSI) reports. The UE transmits, to a base station, an indication indicating the T processing units. The UE receives, from the base station, a trigger for updating or providing M CSI reports. The UE determines that P processing units of the T processing units are available for calculation of CSI reports. The UE updates or provides N CSI reports. N is an integer smaller than or equal to M and allows processing units assigned for calculation of the N CSI reports to be smaller than or equal to the P processing units.
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24.发明授权公开(公告)号：US11258560B2
公开(公告)日：2022-02-22
申请号：US16683108
申请日：2019-11-13
Applicant: MEDIATEK INC.
Inventor： Lung-Sheng Tsai , Weidong Yang , Jiann-Ching Guey
Abstract: In one novel aspect, multiple TRPs information are provided for REG bundle configuration with PDCCH transmission and reception with multiple transmission points (TRPs). The UE configures a PDCCH associated with a CORESET comprising multiple CCEs, partitions the CORESET into multiple CCE groups associated with corresponding TCI-state, which corresponds to a source TRP, configures multiple resource element group (REG) bundles each with multiple resource elements (REs), and assumes the same precoder applied on PDCCH DMRS when the REs are in the same REG bundle and are associated with the same source TRP, and wherein each source TRP transmits corresponding portion of DCI data mapping to the corresponding first and second CCE group. In one embodiment, the REG bundles are predefined with each comprises only REs associated with the same source TRP. In another embodiment, each CCE group corresponding to a source TRP is indicated for the REG bundle configurations.
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25.发明申请公开(公告)号：US20210352641A1
公开(公告)日：2021-11-11
申请号：US17384751
申请日：2021-07-24
Applicant: MediaTek Inc.
Inventor： Weidong Yang
Abstract: Various solutions for multiplexing of short physical downlink control channel and data with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a reuse indication from a control channel. The apparatus may determine whether a plurality of control channel elements (CCEs) are reused for a data channel according to the reuse indication. The apparatus may further receive the data channel in the CCEs in an event that the reuse indication indicates that the CCEs are reused.
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Patent Agency Ranking
公开(公告)号：US11025457B2
公开(公告)日：2021-06-01
申请号：US16582423
申请日：2019-09-25
Applicant: MEDIATEK INC.
Inventor： Cheng-Rung Tsai , Chia-Hao Yu , Weidong Yang
IPC: H04L27/26 , H04W48/12 , H04W72/04 , H04L5/00 , H04L25/02 , H04W76/27 , H04B7/0408 , H04B7/06 , H04L12/24 , H04W72/12
Abstract: Aspects of the disclosure provide a user equipment (UE). The UE receives configuration information of multiple transmission configuration indication (TCI) states. The UE receives one or more activation commands that associate a first subset of the TCI states with one or more codepoints of a TCI field and a second subset of the TCI states with the one or more codepoints of the TCI field. The UE receives a codepoint associated with a first TCI state in the first subset of the TCI states and a second TCI state in the second subset of the TCI states. The UE determines at least one first quasi co-located (QCL) assumption according to the first TCI state and at least one second QCL assumption according to the second TCI state. The UE receives a downlink transmission based on the at least one first QCL assumption and the at least one second QCL assumption.
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公开(公告)号：US10887873B2
公开(公告)日：2021-01-05
申请号：US16205392
申请日：2018-11-30
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 receives, from a base station, a trigger for reporting M CSI reports. M is an integer greater than 0. The UE determines a wait time period from a reference point to a time point at which N CSI reports of the M CSI reports are to be transmitted. N is an integer greater than 0 and smaller than or equal to M. The UE determines N respective processing time periods for updating the N CSI reports. The UE determines a maximum processing time period that is the largest among the N respective processing time periods. The UE further determines whether to update the N CSI reports based on the maximum processing time period and the wait time period.
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公开(公告)号：US10743321B2
公开(公告)日：2020-08-11
申请号：US16282851
申请日：2019-02-22
Applicant: MEDIATEK INC.
Inventor： Cheng-Rung Tsai , Ming-Po Chang , Chia-Hao Yu , Weidong Yang , Jiann-Ching Guey
Abstract: A method of default uplink beam determination after a beam failure recovery (BFR) procedure in a beamforming system is proposed. For uplink (UL) transmission, the BS provides physical uplink control channel (PUCCH) resource configuration to UE. The configuration includes spatial relation information that indicates the spatial filter to be used by UE for the corresponding PUCCCH transmission. After BFR procedure is completed and before the first spatial relation information indication for a PUCCH resource is received by UE, a default UE TX beam for the PUCCH resource can be determined based on the UE TX beam used during the BFR procedure, e.g., the UE TX beam used to transmit a beam failure recovery request (BFRQ) during the BFR procedure.
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公开(公告)号：US10687346B2
公开(公告)日：2020-06-16
申请号：US16148165
申请日：2018-10-01
Applicant: Mediatek Inc.
Inventor： Lung-Sheng Tsai , Xiu-Sheng Li , Weidong Yang
Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE obtains M1 modulated symbols to be transmitted on a selected section of a physical uplink shared channel (PUSCH) of the UE, the M1 modulated symbols being for carrying a first category of uplink information. The UE maps J1 modulated symbols of the M1 modulated symbols to occupy each one of J1 resource elements (REs) that are available, in a consecutive (N1−1) symbol periods of the selected section of the PUSCH, for carrying modulated symbols that carries the first category of uplink information. The UE determines a number S1 based on K1 and a number T1. The UE maps K1 modulated symbols of the M1 modulated symbols to occupy K1 REs of the T1 REs such that two adjacent REs among the K1 REs being separated by at least (S1−1) REs.
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30.发明申请公开(公告)号：US20200153572A1
公开(公告)日：2020-05-14
申请号：US16683089
申请日：2019-11-13
Applicant: MEDIATEK INC.
Inventor： Lung-Sheng Tsai , Weidong Yang , Cheng-Rung Tsai , Jiann-Ching Guey , Chia-Hao Yu
Abstract: In one novel aspect, configurations for PDCCH transmission and reception with multiple transmission points are provided. The UE configures a PDCCH associated with a CORSET comprising multiple CCEs, partitions the CORSET into multiple TCI-state sets, wherein each TCI state set includes multiple CCE groups associated with corresponding TCI-state, which corresponds to a source TRP, activates one TCI state set, and receives DCI via the PDCCH, wherein the PDCCH is transmitted from at least the first source TRP and the second source TRP, and wherein each source TRP transmits corresponding portion of DCI data mapping to the corresponding first and second CCE group. The CORSET is partitioned in FDM or TDM way. In another novel aspect, a first and a second PDCCH associated with a first and a second TRP are configured for repetition transmission. The second PDCCH configuration is dependent upon the first PDCCH configuration.
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