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    METHOD AND APPARATUS FOR ENHANCING COVERAGE OF MACHINE TYPE COMMUNICATION (MTC) DEVICES
    7.
    发明申请
    METHOD AND APPARATUS FOR ENHANCING COVERAGE OF MACHINE TYPE COMMUNICATION (MTC) DEVICES 审中-公开
    用于增强机器通信（MTC）设备的覆盖的方法和装置

    公开(公告)号：US20140098761A1

    公开(公告)日：2014-04-10

    申请号：US14046173

    申请日：2013-10-04

    Applicant: Interdigital Patent Holdings, Inc.

    Inventor： Moon-il Lee ,  Janet A. Stern-Berkowitz ,  Nobuyuki Tamaki ,  John W. Haim ,  Pouriya Sadeghi ,  Marian Rudolf ,  Shahrokh Nayeb Nazar

    IPC: H04W72/00 ,  H04W74/08 ,  H04W4/00

    CPC classification number: H04W72/005 ,  H04B17/318 ,  H04L1/1819 ,  H04L1/189 ,  H04W4/02 ,  H04W4/027 ,  H04W4/06 ,  H04W4/70 ,  H04W48/12 ,  H04W74/006 ,  H04W74/0833

    Abstract: A method and apparatus are described for a low cost machine-type-communication (LC-MTC) wireless transmit/receive unit (WTRU) to enhance coverage. An example method for physical broadcast channel (PBCH) enhancement includes receiving system information on an enhanced PBCH (ePBCH). The ePBCH is located in a set of radio frames which is a subset of available radio frames, where the subset includes fewer than all the available radio frames. The ePBCH is received in at least one radio frame of the set of radio frames. An example method for physical random access channel (PRACH) enhancement includes receiving configuration of legacy PRACH resources and enhanced PRACH (ePRACH) resources. The WTRU selects one of legacy PRACH resources or ePRACH resources based on a coverage capability. Another example method for PRACH enhancement includes receiving configuration of ePRACH resources. The ePRACH resources include multiple ePRACH resource types, each ePRACH resource type being associated with a coverage capability.

    Abstract translation: 对于低成本机器型通信（LC-MTC）无线发射/接收单元（WTRU），描述了一种用于增强覆盖范围的方法和装置。 用于物理广播信道（PBCH）增强的示例方法包括在增强型PBCH（ePBCH）上接收系统信息。 ePBCH位于一组无线电帧中，无线电帧是可用无线电帧的子集，其中子集包括少于所有可用的无线电帧。 ePBCH被接收在该组无线电帧中的至少一个无线电帧中。 用于物理随机接入信道（PRACH）增强的示例性方法包括接收传统PRACH资源的配置和增强的PRACH（ePRACH）资源。 基于覆盖能力，WTRU选择传统PRACH资源或ePRACH资源之一。 用于PRACH增强的另一示例性方法包括接收ePRACH资源的配置。 ePRACH资源包括多个ePRACH资源类型，每个ePRACH资源类型与覆盖能力相关联。

    Uplink sounding reference signals configuration and transmission
    9.
    发明授权
    Uplink sounding reference signals configuration and transmission 有权

    公开(公告)号：US11419063B2

    公开(公告)日：2022-08-16

    申请号：US16792579

    申请日：2020-02-17

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Janet A. Stern-Berkowitz ,  Chang-Soo Koo ,  Peter S. Wang ,  Sung-Hyuk Shin ,  John W. Haim ,  Stephen G. Dick ,  Mihaela C. Beluri

    IPC: H04W4/00 ,  H04W52/32 ,  H04L5/00 ,  H04L27/26

    Abstract: A wireless transmit/receive unit (WTRU) is configured to receive a WTRU-specific configuration of WTRU-specific sounding reference signal (SRS) subframes for performing SRS transmissions. The WTRU is configured to receive a trigger in a subframe to transmit a first SRS. The WTRU is configured to select a first subframe. The WTRU is configured to determine that a maximum power would be exceeded in a symbol in the selected first subframe. The WTRU is configured to, on a condition that transmission of at least one other SRS would at least partially overlap in the symbol in the selected first subframe, scale transmission powers of the first SRS and the at least one other SRS equally to comply with the maximum power. The WTRU is configured to transmit, in accordance with the scaled transmission powers, the first SRS in the selected subframe and the at least one other SRS.

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