User equipment and methods for operation in coverage enhancement mode with physical random access channel preamble
    6.
    发明授权
    User equipment and methods for operation in coverage enhancement mode with physical random access channel preamble 有权
    用户设备和方法在覆盖增强模式下进行物理随机接入信道前导码

    公开(公告)号:US09456405B2

    公开(公告)日:2016-09-27

    申请号:US14489874

    申请日:2014-09-18

    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.

    Abstract translation: 本文公开了根据物理随机接入信道(PRACH)来操作的用户设备(UE)的实施例。 UE可以包括硬件处理电路,用于基于与来自演进节点B(eNB)的UE处的UE的下行链路信号的接收相关的下行链路信道统计以及与上行链路接收相关的上行链路 - 下行链路不平衡参数来确定UE的覆盖增强类别 在eNB。 硬件处理电路可以进一步基于针对UE的所确定的覆盖增强类别,从覆盖增强模式中选择来自一组候选PRACH前导码的PRACH前导码。 在一些实施例中,候选PRACH前导码中的至少一些可以跨越不同数量的子帧。

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