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81.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：US20180227899A1
公开(公告)日：2018-08-09
申请号：US15888250
申请日：2018-02-05
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Yuanyuan Zhang , Ming-Po Chang , Jiann-Ching Guey
IPC: H04W72/04 , H04W74/08 , H04B17/318
Abstract: A method of beam failure recovery for multi-beam operation in wireless communication systems with beamforming is proposed. Specifically, a four-step beam failure recovery procedure is proposed. In a first step of beam failure detection, UE detects a beam failure condition of the original serving beam pair link. In a second step of new candidate beam identification, UE performs measurements for candidate beam selection. In a third step of beam failure recovery request (BFRQ) transmission, UE transmits a BFRQ message to BS upon the triggering condition for BFRQ transmission is satisfied. In a fourth step of monitoring BS response, UE monitors BS response to decide the success or failure of the beam failure recovery.
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公开(公告)号：US20180227786A1
公开(公告)日：2018-08-09
申请号：US15888315
申请日：2018-02-05
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Ming-Po Chang , Jiann-Ching Guey
Abstract: A method of beam reciprocity state reporting and uplink beam management in wireless communication systems with beamforming is proposed. In one novel aspect, a BS configures one or more resource sets to a UE for uplink beam management. The one or more resource sets are allocated for UE to transmit UL reference signals using a number of UE beams. The number of UE beams to be trained is reported by the UE, e.g., via a “UE beam reciprocity state (update)” message. The BS also indicates whether a fixed UE TX beam or which UE TX beam is used for transmission, or indicates whether different UE TX beams are used for transmission of different resources in a resource set. The BS then feedback measurement results for UE to choose a proper TX beam.
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公开(公告)号：US09866299B2
公开(公告)日：2018-01-09
申请号：US14725138
申请日：2015-05-29
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chao-Cheng Su , Ju-Ya Chen
CPC classification number: H04B7/0617 , H04J11/0079 , H04J2011/0096 , H04L5/0023 , H04L5/005 , H04L27/2607 , H04L27/2613 , H04L27/2628 , H04L27/2655
Abstract: A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A periodically configured time-frequency resource blocks in which the transmitting device uses the same beamforming weights for its control beam transmission to the receiving device. A pilot signal for each of the control beams is transmitted in each of the periodically configured time-frequency resource blocks. The same synchronization signal can be used for all stages of synchronization including initial coarse synchronization, device and beam identification, and channel estimation for data demodulation.
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公开(公告)号：US09680547B2
公开(公告)日：2017-06-13
申请号：US14706098
申请日：2015-05-07
Applicant: MediaTek Inc.
Inventor： Chia-Hao Yu , Ming-Po Chang , Jiann-Ching Guey
IPC: H04B7/06 , H04W72/00 , H04W4/06 , H01Q3/26 , H01Q1/24 , H04B7/0452 , H04B7/0456
CPC classification number: H04B7/0617 , H01Q1/246 , H01Q3/26 , H04B7/0452 , H04B7/0456 , H04B7/0695 , H04B7/0697 , H04W4/06 , H04W72/005
Abstract: A network control device. A wireless communications module receives a plurality of first signals each including information regarding a preferred transmitting beam in a first beam level determined by a communications apparatus. A controller selects a group of communications apparatuses to join a 1-to-many beam training according to the received first signals and selects one or more transmitting beams in a second beam level to be trained. The communications apparatuses in the group have the same preferred transmitting beam in the first beam level and the transmitting beam(s) in the second beam level associates with the preferred transmitting beam in the first beam level. The wireless communications module further uses the transmitting beam(s) in turn to transmit signals to perform the 1-to-many beam training for training the transmitting beam(s) in the second beam level among the group of communications apparatuses at the same time.
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Patent Agency Ranking
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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公开(公告)号：US20170054479A1
公开(公告)日：2017-02-23
申请号：US15345752
申请日：2016-11-08
Applicant: MEDIATEK INC.
Inventor： Aimin Justin Sang , Chia-Hao Yu , Yuanyuan Zhang , Jiann-Ching Guey
CPC classification number: H04B7/0408 , H04B7/0619 , H04B7/0695 , H04B7/0697 , H04J4/00 , H04J13/00 , H04L1/0003 , H04W36/0055 , H04W72/042 , H04W72/0446 , H04W72/0453 , H04W72/046
Abstract: A method of providing spatial diversity for critical data delivery in a beamformed mmWave smallcell is proposed. The proposed spatial diversity scheme offers duplicate or incremental data/signal transmission and reception by using multiple different beams for the same source and destination. The proposed spatial diversity scheme can be combined with other diversity schemes in time, frequency, and code, etc. for the same purpose. In addition, the proposed spatial diversity scheme combines the physical-layer resources associated with the beams with other resources of the same or different protocol layers. By spatial signaling repetition to avoid Radio Link Failure (RLF) and Handover Failure (HOF), mobility robustness can be enhanced. Mission-critical and/or time-critical data delivery can also be achieved without relying on retransmission.
Abstract translation: 提出了一种在波束形成的mmWave小单元中提供关键数据传输的空间分集的方法。 所提出的空间分集方案通过对于相同的源和目的地使用多个不同的波束来提供重复的或增量的数据/信号发射和接收。 为了相同的目的，提出的空间分集方案可以与时间，频率和代码等的其他分集方案组合。 此外，所提出的空间分集方案将与波束相关联的物理层资源与相同或不同协议层的其他资源相结合。 通过空间信令重复以避免无线电链路故障（RLF）和切换故障（HOF），可以提高移动性鲁棒性。 关键任务和/或时间关键的数据传送也可以在不依赖重传的情况下实现。
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公开(公告)号：US20160087704A1
公开(公告)日：2016-03-24
申请号：US14723689
申请日：2015-05-28
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chia-Hao Yu , Ming-Po Chang
CPC classification number: H04B7/0617 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04W72/046 , H04W74/0833
Abstract: A method of control signaling in a beamforming system is proposed. A base station allocates a first sets of DL control resource blocks for DL transmission to a plurality of user equipments (UEs) in a beamforming network. Each set of DL control resource blocks is associated with a corresponding set of beamforming weights. The base station also allocates a second sets of UL control resource blocks for UL transmission from the UEs. Each set of UL control resource blocks is associated with the same corresponding set of beamforming weights. The base station transmits cell and beam identification information using a set of control beams. Each control beam comprises a set of DL control resource block, a set of UL control resource block, and the corresponding set of beamforming weights.
Abstract translation: 提出了一种波束成形系统中控制信令的方法。 基站向波束形成网络中的多个用户设备（UE）分配用于DL传输的第一组DL控制资源块。 每组DL控制资源块与相应的一组波束赋形权重相关联。 基站还从UE分配UL传输的第二组UL控制资源块。 每组UL控制资源块与相同的对应的波束赋形权重组相关联。 基站使用一组控制波束来发送小区和波束识别信息。 每个控制波束包括一组DL控制资源块，一组UL控制资源块和相应的一组波束成形权重。
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公开(公告)号：US12267710B2
公开(公告)日：2025-04-01
申请号：US17752825
申请日：2022-05-24
Applicant: MEDIATEK INC.
Inventor： Chien-Yi Wang , Jiann-Ching Guey
Abstract: A method of downlink channel state information (DL CSI) computation and reporting is proposed to support high velocity in new radio (NR) systems. In a first novel aspect, two CSI reference slots are defined. CSI reference slot for CSI measurement is defined for determining which CSI-RS/SSB occasion(s) is used for computing CSI. CSI reference slot for CSI computation is defined for determining the slot where UE assumes the CSI computation should be based upon the channel at that time onwards. In a second novel aspect, UE can be configured with a CSI computation period consisting of one or N slots and can be divided into multiple sub-periods without overlap. UE can be configured to compute and report wideband CSI and subband CSI for the whole CSI computation period and/or for each sub-period.
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公开(公告)号：US12177162B2
公开(公告)日：2024-12-24
申请号：US17686791
申请日：2022-03-04
Applicant: MEDIATEK INC.
Inventor： Tzu-Han Chou , Cheng-Rung Tsai , Jiann-Ching Guey
IPC: H04L5/00
Abstract: A partial sounding method for sounding-reference-signal (SRS) is proposed. The network node may transmit higher-layer signal configuring a fractional SRS resource for partial sounding in configured resource blocks (RBs) to user equipment (UE). The UE may determine an SRS sequence length and a frequency-domain starting position of the fractional SRS resource based on the higher-layer signal to increase the SRS capacity.
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