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    Macro-assisted multi-connectivity scheme in multi-RAT cellular systems
    11.
    发明授权
    Macro-assisted multi-connectivity scheme in multi-RAT cellular systems 有权

    公开(公告)号：US10045360B2

    公开(公告)日：2018-08-07

    申请号：US15099708

    申请日：2016-04-15

    Applicant: MEDIATEK INC.

    Inventor： Aimin Justin Sang ,  Yuanyuan Zhang

    IPC: H04W72/08 ,  H04W72/04 ,  H04W76/04 ,  H04W24/08 ,  H04W76/27

    Abstract: A novel Macro-assisted Multi-Connectivity (MC) mobility scheme for UEs traversing clusters of (mmWave) small cells (small-BS or SBS) under the coverage of the same 5G or LTE Macro-cell (macro-BS or MBS) is proposed. It keeps the same Control/User split scheme and C-Plane anchor at MBS, same as in LTE Dual Connectivity (DuCo or DC), yet extending DuCo with a multi-connectivity split bearer user plane. For example, MBS adopts a multi-way packet data convergence protocol (PDCP) bearer split based on routing weighted by channel quality, SBS's resource availability, etc. with or without inter-BS flow control. Utilizing the MC user plane, a macro-assisted make-before-break MC mobility can be enabled.

    Robust Mobility Measurements and Inter-Cell Coordination in MMwave Small Cell
    15.
    发明申请
    Robust Mobility Measurements and Inter-Cell Coordination in MMwave Small Cell 审中-公开
    在MMwave小蜂窝中的鲁棒移动性测量和小区间协调

    公开(公告)号：US20170054534A1

    公开(公告)日：2017-02-23

    申请号：US15345720

    申请日：2016-11-08

    Applicant: MEDIATEK INC.

    Inventor： Aimin Justin Sang ,  Chia-Hao Yu ,  Yuanyuan Zhang ,  Jiann-Ching Guey

    IPC: H04L5/00 ,  H04W72/08 ,  H04W36/00 ,  H04W72/04

    CPC classification number: H04L5/0032 ,  H04B7/024 ,  H04B7/0408 ,  H04L5/005 ,  H04W36/0088 ,  H04W72/046 ,  H04W72/048 ,  H04W72/082 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/164 ,  Y02D70/442 ,  Y02D70/444

    Abstract: Inter-cell coordination and beam-aware scanning with end-to-end UE-BS signaling enhancements for robust HO trigger in a beamforming mmWave network is proposed. From the network and the base station perspective, inter-BS control beam coordination is performed, coupled with neighbor-cell information advertisement to facilitate UE-side beam-aware scanning. Inter-BS CB coordination enables a variety of network planning, pre-determined or random, enhanced with UE-reports and dynamic re-coordination to minimize inter-cell interference. From UE perspective, by utilizing the advertised CB information, UE can learn serving cell and neighbor cell CB pattern for beam-aware scanning. Beam-aware scanning enables power saving fast scanning at the UE with beam-aware HO measurement of neighboring and target cells, which reduces HO latency and avoids unnecessary HO.

    Abstract translation: 提出了在波束成形mmWave网络中用于鲁棒HO触发的端到端UE-BS信令增强的小区间协调和波束感知扫描。 从网络和基站的角度来看，执行BS间控制波束协调，并与邻居小区信息通告相结合，便于UE侧波束感知扫描。 BS间协调使得能够通过UE报告和动态重新协调来增强预定义或随机的各种网络规划，以最小化小区间干扰。 从UE的角度来看，通过利用所通告的CB信息，UE可以学习用于波束感知扫描的服务小区和相邻小区CB模式。 光束感知扫描使得能够在UE处能够快速扫描相邻和目标小区的波束感知HO测量，这降低了HO等待时间并避免了不必要的HO。

    Beam Misalignment Detection for Wireless Communication System with Beamforming
    16.
    发明申请
    Beam Misalignment Detection for Wireless Communication System with Beamforming 有权
    波束形成无线通信系统的梁对准检测

    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

    IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08

    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。

    Macro-assisted multi-connectivity scheme in multi-RAT cellular systems
    17.
    发明授权
    Macro-assisted multi-connectivity scheme in multi-RAT cellular systems 有权

    公开(公告)号：US10555324B2

    公开(公告)日：2020-02-04

    申请号：US16054885

    申请日：2018-08-03

    Applicant: MEDIATEK INC.

    Inventor： Aimin Justin Sang ,  Yuanyuan Zhang

    IPC: H04W72/08 ,  H04W72/04 ,  H04W24/08 ,  H04W76/27 ,  H04W76/15 ,  H04W28/08

    Abstract: A novel Macro-assisted Multi-Connectivity (MC) mobility scheme for UEs traversing clusters of (mmWave) small cells (small-BS or SBS) under the coverage of the same 5G or LTE Macro-cell (macro-BS or MBS) is proposed. It keeps the same Control/User split scheme and C-Plane anchor at MBS, same as in LTE Dual Connectivity (DuCo or DC), yet extending DuCo with a multi-connectivity split bearer user plane. For example, MBS adopts a multi-way packet data convergence protocol (PDCP) bearer split based on routing weighted by channel quality, SBS's resource availability, etc. with or without inter-BS flow control. Utilizing the MC user plane, a macro-assisted make-before-break MC mobility can be enabled.

    Flexible Macro-Assisted User-Plane Architecture with Millimeter-Wave Small Cells
    19.
    发明申请
    Flexible Macro-Assisted User-Plane Architecture with Millimeter-Wave Small Cells 审中-公开

    公开(公告)号：US20170374589A1

    公开(公告)日：2017-12-28

    申请号：US15697636

    申请日：2017-09-07

    Applicant: MEDIATEK INC.

    Inventor： Aimin Justin Sang ,  Yu-Syuan Jheng ,  Yuanyuan Zhang

    IPC: H04W36/04 ,  H04W16/32 ,  H04W76/02 ,  H04W84/04

    Abstract: Millimeter-wave (mmWave) band communication is a very promising technology for 5G small cells. In practice, such a new system will coexist with legacy or evolved microwave band systems, such as E-UTRAN LTE macro-cell cellular systems, for a long time to come. Considering the typical scenarios where a macro cell offers umbrella coverage for clusters of small cells, several user plane (U-plane) architectural choices of macro-assisted 5G mmWave systems from both UE and network's perspectives are evaluated. The proposed On-demand Reconfiguration U-Plane Architecture (ORUA) for Macro-assisted Millimeter Wave (mmWave) small cells is designed to meet 5G expectations of dense deployment of small cells and UEs and beamformed intermittent Gbps links.

    Dynamic offload selection in mobile communication systems
    20.
    发明授权
    Dynamic offload selection in mobile communication systems 有权

    公开(公告)号：US09661546B2

    公开(公告)日：2017-05-23

    申请号：US14607420

    申请日：2015-01-28

    Applicant: MEDIATEK INC.

    Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu ,  Yu-Syuan Jheng ,  Aimin Justin Sang

    IPC: H04W4/00 ,  H04W36/30 ,  H04W84/12 ,  H04W36/14

    CPC classification number: H04W36/30 ,  H04W28/08 ,  H04W36/14 ,  H04W36/22 ,  H04W84/12

    Abstract: A method of offload selection for a UE to select between 3GPP RAT and WLAN cell is provided. The UE receives configuration information that applies to selecting WLAN or 3GPP radio access technology (RAT). The UE determines if the UE may perform WLAN offload by evaluating 3GPP radio access network (RAN) conditions where at least one RAN condition is related to a radio signal strength or a radio signal quality in 3GPP RAT. The UE then determines if there is at least one suitable WLAN cell by evaluating WLAN conditions. The UE also determines if there is candidate traffic for WLAN offload. Finally, the UE steers the determined traffic to WLAN if the UE may perform WLAN offload and if there is at least one suitable WLAN cell. Otherwise, the UE steers the determined traffic to 3GPP RAT.

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