Codebook-Based Uplink Transmission In Wireless Communications

    公开(公告)号:US20190081671A1

    公开(公告)日:2019-03-14

    申请号:US16129771

    申请日:2018-09-12

    Applicant: MediaTek Inc.

    Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) receives a first signal from a network node of a wireless network, with the first signal selecting one or more codewords or a codebook from a plurality of different codebooks within a master codebook as allowed precoders at transmission ranks. The UE also receives a second signal from the network node, with the second signal selecting a precoder among the allowed precoders for uplink (UL) transmission. The UE then processes data using the selected precoder and performs an UL transmission of the processed data to the network node.

    Codebook-Based Uplink Transmission In Wireless Communications

    公开(公告)号:US20190081668A1

    公开(公告)日:2019-03-14

    申请号:US16129774

    申请日:2018-09-12

    Applicant: MediaTek Inc.

    Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) constructs a precoder to be used to wirelessly communicate with a network node of a wireless network. The UE then performs an uplink (UL) transmission to the network node using the precoder via one or more of a plurality of antennas of the UE.

    Sounding Reference Signal And Channel State Information-Reference Signal Co-Design In Mobile Communications

    公开(公告)号:US20180367287A1

    公开(公告)日:2018-12-20

    申请号:US16009539

    申请日:2018-06-15

    Applicant: MediaTek Inc.

    Abstract: Various solutions for sounding reference signal (SRS) and channel state information-reference signal (CSI-RS) co-design with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a first sequence in a time-frequency resource. The apparatus may receive a second sequence in the same time-frequency resource. The apparatus may determine a first reference signal according to the first sequence. The apparatus may determine a second reference signal according to the second sequence. The apparatus may perform interference measurement based on the first reference signal and the second reference signal.

    Method And Apparatus For Coordination Information Transmission In Mobile Communications

    公开(公告)号:US20180184419A1

    公开(公告)日:2018-06-28

    申请号:US15852143

    申请日:2017-12-22

    Applicant: MediaTek Inc.

    Abstract: Various solutions for coordination information transmission with respect to user equipment (UE) and network apparatus in mobile communications are described. A UE may receive downlink control information comprising coordination information from a first node of a wireless network. The coordination information may comprise interference management information. The UE may copy the coordination information and embed the coordination information in uplink control information. The UE may further transmit the uplink control information to a second node of the wireless network.

    Methods of Listen-Before-Talk Mechanism for Opportunistic Spectrum Access
    26.
    发明申请
    Methods of Listen-Before-Talk Mechanism for Opportunistic Spectrum Access 审中-公开
    机会频谱访问前后侦听机制的方法

    公开(公告)号:US20160309512A1

    公开(公告)日:2016-10-20

    申请号:US15098431

    申请日:2016-04-14

    Applicant: MEDIATEK INC.

    CPC classification number: H04W74/0816 H04W74/085

    Abstract: A method of determining and adapting a contention window size (CWS) based on channel loading for load-based equipment (LBE) listen before talk (LBT) channel access mechanism is proposed. The historic observations obtained from carrier sensing can reflect the state of channel loading, which is then used to adapt the maximal contention window size. A wireless device collects historical channel loading information including the number of idle slots and the number of busy slots. The wireless device uses the historical information to estimate the total number of active devices M in the wireless network and the channel-loading factor. The wireless device then computes the thresholds using the long-term value of M and then adapts the value of the CWS based on the channel-loading factor and the thresholds.

    Abstract translation: 提出了一种基于用于基于负载的设备(LBE)听话(LBT)信道访问机制的信道加载来确定和适应竞争窗口大小(CWS)的方法。 从载波侦听获得的历史观察可以反映信道加载的状态,然后将其用于适应最大争用窗口大小。 无线设备收集历史信道加载信息,包括空闲时隙的数量和忙时隙的数量。 无线设备使用历史信息来估计无线网络中的有效设备M的总数和信道负载因子。 然后,无线设备使用M的长期值来计算阈值,然后基于信道负载因子和阈值来适配CWS的值。

    Methods of Listen-Before-Talk Mechanism for Opportunistic Spectrum Access
    27.
    发明申请
    Methods of Listen-Before-Talk Mechanism for Opportunistic Spectrum Access 审中-公开
    机会频谱访问前后侦听机制的方法

    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.

    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。

    Codebook-based uplink transmission in wireless communications

    公开(公告)号:US10567051B2

    公开(公告)日:2020-02-18

    申请号:US16129772

    申请日:2018-09-12

    Applicant: MediaTek Inc.

    Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) receives a signal indicating codebook subset restriction (CBSR) from a network node of a wireless network. The UE selects one or more codewords or a codebook from a master codebook based on the CBSR. The master codebook includes codewords from multiple components. The UE then performs a physical uplink shared channel (PUSCH) transmission to the network node using the one or more codewords or the codebook.

    Codebook-based uplink transmission in wireless communications

    公开(公告)号:US10541736B2

    公开(公告)日:2020-01-21

    申请号:US16129771

    申请日:2018-09-12

    Applicant: MediaTek Inc.

    Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) receives a first signal from a network node of a wireless network, with the first signal selecting one or more codewords or a codebook from a plurality of different codebooks within a master codebook as allowed precoders at transmission ranks. The UE also receives a second signal from the network node, with the second signal selecting a precoder among the allowed precoders for uplink (UL) transmission. The UE then processes data using the selected precoder and performs an UL transmission of the processed data to the network node.

    Method and apparatus of data transmission by setting segmentation threshold based on transmission time interval

    公开(公告)号:US10341070B2

    公开(公告)日:2019-07-02

    申请号:US15672523

    申请日:2017-08-09

    Applicant: MEDIATEK INC.

    Abstract: Aspects of the disclosure provide a method of data transmission that includes determining a transmission time interval for transmission of a transport block and setting a segmentation threshold for the transport block to a first threshold or a second threshold that is less than the first threshold based on the determined transmission time interval. The method includes converting the transport block into one or more outgoing code blocks that each has a size not greater than the determined segmentation threshold and encoding the one or more outgoing code blocks for transmission when communication device is configured to transmit the transport block. The method also includes receiving one or more incoming code blocks that each has a size not greater than the determined segmentation threshold and reconstructing the transport block from the one or more incoming code blocks when communication device is configured to receive the transport block.

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