DYNAMIC CSI-RS TRANSMISSION FOR ENHANCED FD-MIMO

    公开(公告)号:US20190089436A1

    公开(公告)日:2019-03-21

    申请号:US16085498

    申请日:2017-04-27

    Abstract: Dynamic channel state information (CSI) reference signal (CSI-RS) activation/deactivation via layer 1 signaling is discussed. An eNB may configure multiple dynamic CSI-RS resource configurations for a given user equipment (UE). Multiple dynamic CSI-RS configurations may be associated with CSI processes, and also one or more dynamic CSI-RS resources may be associated with multiple CSI processes. Each dynamic CSI-RS resource configuration may include the number of ports, RE locations, and power ratio, as well as the subframe configuration, which may include periodicity and subframe offset. The eNB may dynamically trigger or release the different dynamic CSI-RS resources through layer 1 signaling. Additional aspects provide for ways to determine dynamic CSI-RS transmission instances, to enhance rate matching to support dynamic CSI-RS transmissions, and to report CSI for dynamic CSI-RS resources.

    PERIODIC AND APERIODIC CHANNEL STATE INFORMATION (CSI) REPORTING FOR MIMO

    公开(公告)号:US20170164226A1

    公开(公告)日:2017-06-08

    申请号:US15313003

    申请日:2014-05-22

    Inventor: Chao WEI Yu ZHANG

    Abstract: Certain aspects of the present disclosure provide techniques for performing periodic and aperiodic CSI reporting for MIMO operations. According to certain aspects, operations for performing periodic and aperiodic CSI reporting for MIMO generally includes configuring a user equipment (UE) that is capable of MIMO with different parameters for periodic and aperiodic channel state information (CSI) reporting, wherein the different parameters indicate at least one of what resources to measure or what in formation to report, and receiving periodic and aperiodic CSI reporting from the UE according to the configuration.

    CROSS-CARRIER INDICATION OF UPLINK/DOWNLINK SUBFRAME CONFIGURATIONS
    209.
    发明申请
    CROSS-CARRIER INDICATION OF UPLINK/DOWNLINK SUBFRAME CONFIGURATIONS 审中-公开
    上行/下行子帧配置的交叉载体指示

    公开(公告)号:US20160254948A1

    公开(公告)日:2016-09-01

    申请号:US15028805

    申请日:2014-10-28

    Abstract: Certain aspects of the present disclosure relate to techniques for cross-carrier indication of TDD (Time Division Duplex) UL (Uplink)/DL (Downlink) subframe configuration. A UE may receive a configuration of a first index for a first cell, wherein the first index is mapped to a first position in a Downlink Control Information (DCI) message. The UE may receive the DCI message in a subframe and determine an indication of a UL/DL subframe configuration for the first cell based on the first index and the DCI message. The UE may communicate with the first cell based on the determined UL/DL subframe configuration for the first cell.

    Abstract translation: 本公开的某些方面涉及TDD(时分双工)UL(上行链路)/ DL(下行链路)子帧配置的交叉载波指示的技术。 UE可以接收第一小区的第一索引的配置,其中第一索引被映射到下行链路控制信息(DCI)消息中的第一位置。 UE可以在子帧中接收DCI消息,并且基于第一索引和DCI消息确定第一小区的UL / DL子帧配置的指示。 UE可以基于针对第一小区的所确定的UL / DL子帧配置与第一小区进行通信。

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