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公开(公告)号：US20180227772A1
公开(公告)日：2018-08-09
申请号：US15888299
申请日：2018-02-05
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Ming-Po Chang , Jiann-Ching Guey
CPC classification number: H04W16/28 , H04B7/0617 , H04B7/0619 , H04L5/0023 , H04L5/0048 , H04L5/0091 , H04W24/10 , H04W72/04 , H04W72/046 , H04W76/27 , H04W88/02 , H04W88/08
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 UE determines its UE beam reciprocity state and sends a “UE beam reciprocity state” message to a BS, which triggers proper uplink beam management accordingly. The UE beam reciprocity state message can take place when UE tries to register to the network. For example, according to factory setting, UE reports at least “Positive” or “Negative” in this message. Beam reciprocity state can be updated by a “UE beam reciprocity state update” message. An auxiliary information can be transmitted to the BS for UL beam management if UE reports “Negative” for beam reciprocity state. The auxiliary information indicates the uncertainty level of UE beams.
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公开(公告)号：US09954590B2
公开(公告)日：2018-04-24
申请号：US14938103
申请日：2015-11-11
Applicant: MediaTek Inc.
Inventor： Chia-Hao Yu , Ming-Po Chang , Jiann-Ching Guey
CPC classification number: H04B7/061 , H04B7/0456 , H04B7/0617 , H04B7/0619 , H04B7/088 , H04L1/0084 , H04L5/0023 , H04W16/28 , H04W72/1289
Abstract: A network control device includes a wireless communications module and a controller. The wireless communications module uses a preferred transmitting beam to communicate with a communications apparatus in one or more downlink opportunities corresponding to the preferred transmitting beam. The controller schedules signal or data to be transmitted in at least one downlink opportunity corresponding to the preferred transmitting beam. When scheduling signal or data to be transmitted, the controller further provides at least one training gap, in which the controller does not schedule any dedicated data to the communications apparatus, in the downlink opportunity corresponding to the preferred transmitting beam.
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公开(公告)号：US20170127400A1
公开(公告)日：2017-05-04
申请号：US15405075
申请日：2017-01-12
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Ming-Po Chang , Aimin Justin Sang
CPC classification number: H04W72/046 , H04B7/0408 , H04B7/0617 , H04B7/0632 , H04L5/0057 , H04W16/28 , H04W48/20 , H04W72/085 , H04W88/02 , H04W88/08
Abstract: A method of beam misalignment detection for wireless communication system with beamforming is proposed. To identify a misaligned beam, a relative beam quality degradation is applied by comparing a dedicated beam quality with a reference beam quality. The reference beam favors similar transmission path as the dedicated beam, and has better mobility robustness. In one embodiment, the reference beam is an associated control beam of the dedicated beam. To detect beam misalignment, a first dedicated beam SINR is compared with a second associated control beam SINR.
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24.发明申请公开(公告)号：US20160095102A1
公开(公告)日：2016-03-31
申请号：US14863492
申请日：2015-09-24
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Ming-Po Chang , Aimin Justin Sang
CPC classification number: H04W72/046 , H04B7/0408 , H04B7/0617 , H04B7/0632 , H04L5/0057 , H04W16/28 , H04W48/20 , H04W72/085 , H04W88/02 , H04W88/08
Abstract: A method of beam misalignment detection for wireless communication system with beamforming is proposed. To identify a misaligned beam, a relative beam quality degradation is applied by comparing a dedicated beam quality with a reference beam quality. The reference beam favors similar transmission path as the dedicated beam, and has better mobility robustness. In one embodiment, the reference beam is an associated control beam of the dedicated beam. To detect beam misalignment, a first dedicated beam SINR is compared with a second associated control beam SINR.
Abstract translation: 提出了一种具有波束成形的无线通信系统的波束失准检测方法。 为了识别未对准的光束，通过将专用光束质量与参考光束质量进行比较来应用相对光束质量劣化。 参考光束有利于与专用光束相似的传输路径，并且具有更好的移动性鲁棒性。 在一个实施例中，参考光束是专用光束的相关控制光束。 为了检测光束未对准，将第一专用光束SINR与第二相关联的控制光束SINR进行比较。
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公开(公告)号：US10903877B2
公开(公告)日：2021-01-26
申请号：US15802681
申请日：2017-11-03
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Yuanyuan Zhang , Ming-Po Chang , Guo Hau Gau , Jiann-Ching Guey
Abstract: Apparatus and methods are provided for initial access in the multi-beam operation. In one novel aspect, the UE receives multiple response messages and selects one message as the response message. In one embodiment, the UE selects a subset of a configured UL resources, transmits a first message, wherein the first message is transmitted one or more times on each of the selected set of UL resources, receives one or more first-message-response messages from the BS, and selects one response message, wherein the selected response message indicates a corresponding BS RX resource, which is used by the UE for subsequent communication with the BS. In one embodiment, the selection of UL resources is at least based on transmitting spatial characteristics of the BS, the UE or both, which indicates whether the BS/UE is reciprocal, partial reciprocal or non-reciprocal.
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Patent Agency Ranking
公开(公告)号：US10798588B2
公开(公告)日：2020-10-06
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：US10511370B2
公开(公告)日：2019-12-17
申请号：US15970995
申请日：2018-05-04
Applicant: MEDIATEK INC.
Inventor： Ming-Po Chang , Chia-Hao Yu , Jiann-Ching Guey
Abstract: A method of group-based beam reporting is proposed. The BS TX beams are grouped into groups to increase beam reporting efficiency. After measuring reference signals for beam management, UE reports RS quality to the network in beam groups. The beam grouping can be done either implicitly or explicitly. The grouping within the beam report is done by the UE with or without help from the network. According to principles of grouping mechanism, the grouping methods can be divided into two different categories. A first category is referred to as beam set based group, where UE groups TX beam information in a beam report based on its RX beam set(s). A second category is referred to as antenna group-based grouping, where UE groups TX beam information in a beam report based on UE antenna group.
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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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公开(公告)号：US10251071B2
公开(公告)日：2019-04-02
申请号：US14859668
申请日：2015-09-21
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Ming-Po Chang , Aimin Justin Sang , Jiann-Ching Guey
Abstract: An incremental scheduling scheme is proposed in a wireless communication system with beamforming. In an initial stage (stage-1), coarse scheduling plan is granted via control beam transmission. In a second stage (stage-2), fine scheduling plan is granted via dedicated beam transmission. Such incremental scheduling scheme provides load balancing for overhead channels on control/dedicated beams via stage-2 scheduling. It utilizes dedicated beam transmission that is more resource efficient and more UE-specific. Furthermore, it provides UE natural power-saving opportunities via stage-1 scheduling.
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公开(公告)号：US20180323845A1
公开(公告)日：2018-11-08
申请号：US15970995
申请日：2018-05-04
Applicant: MEDIATEK INC.
Inventor： Ming-Po Chang , Chia-Hao Yu , Jiann-Ching Guey
Abstract: A method of group-based beam reporting is proposed. The BS TX beams are grouped into groups to increase beam reporting efficiency. After measuring reference signals for beam management, UE reports RS quality to the network in beam groups. The beam grouping can be done either implicitly or explicitly. The grouping within the beam report is done by the UE with or without help from the network. According to principles of grouping mechanism, the grouping methods can be divided into two different categories. A first category is referred to as beam set based group, where UE groups TX beam information in a beam report based on its RX beam set(s). A second category is referred to as antenna group-based grouping, where UE groups TX beam information in a beam report based on UE antenna group.
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