公开(公告)号：US20180076924A1

公开(公告)日：2018-03-15

申请号：US15564630

申请日：2016-04-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il LEE ,  Janet A. STERN-BERKOWITZ

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/04

Abstract: Method, devices and systems of multi-subband based transmission are disclosed herein. A method for use in a wireless transmit/receive unit (WTRU) includes monitoring a plurality of subbands for subbands that include an enhanced physical downlink control channel (EPDCCH), wherein each subband of the plurality of subbands is made up of a subset of frequency resources in a system bandwidth, and determining whether each of the plurality of subbands is a channel state information (CSI) downlink subband (CSI-subband) for CSI feedback based on whether an EPDCCH is included in a corresponding subband of the plurality of subbands. At least two subbands of the plurality of subbands, in which a corresponding EPDCCH is included, are determined as CSI subbands for CSI feedback.

公开(公告)号：US20160029239A1

公开(公告)日：2016-01-28

申请号：US14782266

申请日：2014-04-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Pouriya SADEGHI ,  Janet A. STERN-BERKOWITZ ,  Shahrokh NAYEB NAZAR ,  J. Patrick TOOHER ,  Moon-il LEE ,  Nobuyuki TAMAKI ,  Ananth KINI

IPC: H04W24/10 ,  H04B17/345

CPC classification number: H04W24/10 ,  H04B17/345 ,  H04W52/146 ,  H04W52/244

Abstract: A method and apparatus are described for controlling uplink (UL) transmission power. A wireless transmit/receive unit (WTRU) may receive a configuration of UL subframe sets and maintain a plurality of transmit power control (TPC) command accumulator values that correspond to respective ones of the UL subframe sets. The WTRU may receive a TPC command in a subframe n of a downlink (DL) transmission, determine a subframe n+k of a UL transmission that the received TPC command corresponds to, determine which of the UL subframe sets the UL transmission subframe n+k belongs to, and adjust a TPC command accumulator value that corresponds to the determined UL subframe set to determine power of the UL transmission when transmitting in the UL transmission subframe, where n is an integer, and k is an integer greater than zero.

Abstract translation: 描述了一种用于控制上行链路（UL）传输功率的方法和装置。 无线发射/接收单元（WTRU）可以接收UL子帧集合的配置，并且保持对应于UL子帧集合中的相应一个的多个发射功率控制（TPC）命令累加器值。 WTRU可以在下行链路（DL）传输的子帧n中接收TPC命令，确定接收到的TPC命令对应的UL传输的子帧n + k，确定UL子帧中的哪一个UL传输子帧n + k属于，并且调整与所确定的UL子帧集相对应的TPC命令累加器值，以在UL传输子帧中发送时确定UL传输的功率，其中n是整数，并且k是大于零的整数。

公开(公告)号：US20150382205A1

公开(公告)日：2015-12-31

申请号：US14763113

申请日：2014-01-24

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Moon-il LEE ,  Janet A. STERN-BERKOWITZ ,  Virgil COMSA ,  Meilong JIANG

IPC: H04W16/28 ,  H04L5/00 ,  H04W24/10 ,  H04B7/08 ,  H04B7/06 ,  H04W74/08

CPC classification number: H04W16/28 ,  H04B7/0417 ,  H04B7/061 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/086 ,  H04B7/088 ,  H04L5/0048 ,  H04W24/10 ,  H04W52/365 ,  H04W74/0833

Abstract: A method and apparatus for determining a vertical beam for reception are disclosed herein. A method in a wireless transmit/receive unit (WTRU) includes receiving a broadcast message from an evolved Node B (eNB) that includes information associated with a plurality of vertical beams, wherein the information includes at least one set of Physical Random Access Control Channel (PRACH) resources associated with each of the plurality of vertical beams, measuring reference signals transmitted on each of the plurality of vertical beams to select a reception vertical beam, transmitting a PRACH preamble in a set of resources associated with the selected reception vertical beam, and receiving communications from the eNB using the selected reception vertical beam.

Abstract translation: 这里公开了用于确定用于接收的垂直波束的方法和装置。 无线发射/接收单元（WTRU）中的方法包括从演进的节点B（eNB）接收包括与多个垂直波束相关联的信息的广播消息，其中所述信息包括至少一组物理随机存取控制信道 （PRACH）资源，测量与所述多个垂直波束中的每一个相关联的资源，测量在所述多个垂直波束中的每一个上发送的参考信号，以选择接收垂直波束，在与所选择的接收垂直波束相关联的一组资源中发送PRACH前导码， 以及使用所选择的接收垂直波束从eNB接收通信。