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    Location Of Interleaver With LDPC Code
    31.
    发明申请
    Location Of Interleaver With LDPC Code 审中-公开

    公开(公告)号：US20180212626A1

    公开(公告)日：2018-07-26

    申请号：US15878350

    申请日：2018-01-23

    Applicant: MediaTek Inc.

    Inventor： Wei-Jen Chen ,  Ju-Ya Chen ,  Yen-Shuo Chang ,  Timothy Perrin Fisher-Jeffes ,  Mao-Ching Chiu ,  Cheng-Yi Hsu ,  Chong-You Lee

    IPC: H03M13/27 ,  H03M13/11 ,  H03M13/29 ,  H03M13/00

    Abstract: Concepts and schemes pertaining to location of interleaver with low-density parity-check (LDPC) code are described. A processor of an apparatus encodes data to provide a stream of encoded data. The processor also rate matches the encoded data to provide a rate-matched stream of encoded data. The processor further interleaving the rate-matched stream of encoded data. In rate matching the encoded data, the processor buffers the stream of encoded data in a circular buffer, with the circular buffer functioning as a rate matching block that rate matches the stream of encoded data. In interleaving the rate-matched stream of encoded data, the processor performs bit-level interleaving on the rate-matched stream of encoded data to provide a stream of interleaved data.

    HARQ Feedback Scheme for 5G New Radio
    32.
    发明申请
    HARQ Feedback Scheme for 5G New Radio 审中-公开

    公开(公告)号：US20180167171A1

    公开(公告)日：2018-06-14

    申请号：US15834325

    申请日：2017-12-07

    Applicant: MEDIATEK INC.

    Inventor： Kuo-Ming Wu ,  Wei-Jen Chen ,  Abdelkader Medles ,  Tao Chen ,  Ho-Chi Huang ,  Ju-Ya Chen

    IPC: H04L1/18 ,  H04W74/02 ,  H04W72/12

    Abstract: A Hybrid Automatic Repeat Request (HARQ) feedback scheme that employs a multi-state NACK feedback processing is proposed. A transport block (TB) contains a plurality of code blocks (CBs). When all CBs of the TB are successfully decoded, a one-bit TB ACK is feedback. When at least one CB of the TB is not correctly decoded, a one-bit TB NACK is feedback. In addition, a multi-bit HARQ CB NACK feedback is provided. The multi-bit HARQ CB NACK can point more precisely to the erroneous parts of the TB and trigger efficient retransmission by skipping retransmission of successfully decoded CBs. The network can disable the multi-bit CB NACK for certain UEs, e.g., to reduce overhead. The UE can disable the multi-bit CB NACK, e.g., to save power.

    Transceiver Architecture for Multiple Antenna Systems
    35.
    发明申请
    Transceiver Architecture for Multiple Antenna Systems 有权

    公开(公告)号：US20160373938A1

    公开(公告)日：2016-12-22

    申请号：US15249562

    申请日：2016-08-29

    Applicant: MEDIATEK INC.

    Inventor： Ju-Ya Chen ,  Jing-Hong Conan Zhan

    IPC: H04W16/28 ,  H04B7/06 ,  H04B7/08 ,  H01Q3/38

    CPC classification number: H04W16/28 ,  H01Q3/38 ,  H04B7/0695 ,  H04B7/0851 ,  H04B7/086

    Abstract: A transceiver architecture with combined digital beamforming and analog/hybrid beamforming is proposed. Digital beamforming is used for beam training with reduced overhead (switching time). It is beneficial to estimate all UE's angle of arrival (AoA) at the same time. In addition, the pilot/training signals are transmitted in a narrow band to reduce complexity. Analog/hybrid beamforming is used for data transmission with high directive gain and low complexity. The value of beamforming weights (phase shifter values) in analog domain can be based on the estimation of AoA from beam training. By using digital beamforming for beam training, combined with analog/hybrid beamforming for data transmission, effective beamforming is achieved with reduced overhead, complexity, and cost.

    Synchronization in a Beamforming System
    36.
    发明申请
    Synchronization in a Beamforming System 有权
    波束成形系统中的同步

    公开(公告)号：US20160087707A1

    公开(公告)日：2016-03-24

    申请号：US14725183

    申请日：2015-05-29

    Applicant: MEDIATEK INC.

    Inventor： Jiann-Ching Guey ,  Chao-Cheng Su ,  Ju-Ya Chen

    IPC: H04B7/06 ,  H04W72/04

    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 detector at the receiving device detects the presence of control beams, synchronizes to the transmission and estimates the channel response by receiving pilot signals. The detector has low complexity when exploiting the structure of the pilot signals. The detector consists of three stages that break down the synchronization procedure into less complicated steps. The detector accurately estimates the parameters required for identifying the transmit device and performing subsequent data communication.

    Abstract translation: 提出了一种波束成形系统同步架构，以允许接收设备在具有非常高的路径损耗的最具挑战性的情况下在时间，频率和空间域中与发射设备同步。 在接收设备处的检测器检测控制波束的存在，与传输同步并且通过接收导频信号来估计信道响应。 当利用导频信号的结构时，检测器具有低复杂度。 检测器由三个阶段组成，将同步过程分解成不太复杂的步骤。 检测器精确估计识别发射设备和执行后续数据通信所需的参数。

    Synchronization in a Beamforming System
    37.
    发明申请
    Synchronization in a Beamforming System 有权
    波束成形系统中的同步

    公开(公告)号：US20160087706A1

    公开(公告)日：2016-03-24

    申请号：US14725159

    申请日：2015-05-29

    Applicant: MEDIATEK INC.

    Inventor： Jiann-Ching Guey ,  Chao-Cheng Su ,  Ju-Ya Chen

    IPC: H04B7/06 ,  H04W72/04

    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. Pilot symbols are inserted into pilot structures and repeated for L times in each pilot structure. The L repetitions can be implemented by one or more Inverse Fast Fourier Transfers (IFFTs) with corresponding one or more cyclic prefix (CP) lengths.

    Abstract translation: 提出了一种波束成形系统同步架构，以允许接收设备在具有非常高的路径损耗的最具挑战性的情况下在时间，频率和空间域中与发射设备同步。 周期性配置的时间 - 频率资源块，其中发射设备使用相同的波束形成权重用于其对接收设备的控制波束传输。 在每个周期性配置的时间 - 频率资源块中传送每个控制波束的导频信号。 导频符号插入导频结构，并在每个导频结构中重复L次。 L个重复可以由一个或多个具有相应的一个或多个循环前缀（CP）长度的快速傅里叶逆变换（IFFT）来实现。

    Radio Resource Efficient Transmission for Group Communication over LTE eMBMS
    38.
    发明申请
    Radio Resource Efficient Transmission for Group Communication over LTE eMBMS 有权
    无线资源高效传输，用于LTE eMBMS上的群组通信

    公开(公告)号：US20140286225A1

    公开(公告)日：2014-09-25

    申请号：US14221722

    申请日：2014-03-21

    Applicant: MEDIATEK, INC.

    Inventor： Chia-Hao Yu ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  Ju-Ya Chen

    IPC: H04W4/06 ,  H04W72/00

    CPC classification number: H04W4/08 ,  H04L5/0037 ,  H04L12/185 ,  H04L12/1886 ,  H04W4/06 ,  H04W4/10 ,  H04W24/08 ,  H04W36/0083 ,  H04W36/08 ,  H04W36/30 ,  H04W36/32 ,  H04W72/00 ,  H04W72/005 ,  H04W72/121 ,  H04W74/006 ,  H04W76/40

    Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. The multicast MBMS bearer is associated with a Temporary Mobile Group Identifier (TMGI), and wherein the TMGI is associated with the communication group ID. The UE de-multiplexes DL traffic received either from the multicast MBMS bearer or from the unicast EPS bearer into a single group communication application.

    Abstract translation: 提供了一种通过LTE MBMS支持群组通信的方法。 UE首先在用于组通信的LTE网络中建立单播演进分组业务（EPS）承载。 UE属于具有通信组ID的通信组。 UE从网络接收基于多播决定的DL组通信的下行链路（DL）组播流量的接入信息。 然后，UE准备监视用于接收DL多播业务的组播多媒体广播多播服务（MBMS）承载。 组播MBMS承载与临时移动组标识符（TMGI）相关联，并且其中TMGI与通信组ID相关联。 UE将从组播MBMS承载或从单播EPS承载接收的DL业务解复用为单组通信应用。

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