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    • 3. 发明申请
    • CHANNEL ESTIMATION BASED ON MIDAMBLE
    • 基于MIDAMBLE的信道估计
    • WO2012006583A1
    • 2012-01-12
    • PCT/US2011/043444
    • 2011-07-08
    • QUALCOMM INCORPORATEDSANKAR, HariLI, WenjunKHATIBI, FarrokhGUMMADI, Srikanth
    • SANKAR, HariLI, WenjunKHATIBI, FarrokhGUMMADI, Srikanth
    • H04L25/02
    • H04L25/0218H04L25/0228H04L25/024
    • Channel estimation at a user equipment includes estimating channel quality of at least one channel. A first algorithm or a second algorithm is selected based on the estimated channel quality. Channel estimation is performed based on the selected algorithm. The first algorithm may be a midamble multiplication-based algorithm. The second algorithm may be a midamble division algorithm. Channel estimation may also include estimating noise of a channel and adaptively setting a threshold based on the estimated noise to refine the channel estimation. The estimating channel quality, selecting of a first or second algorithm and channel estimation may be performed iteratively for contributing signals on a channel. An adaptive threshold may be modified across iterations. The channel estimation may also include determining a delay profile of a channel to refine the channel estimation.
    • 在用户设备处的信道估计包括估计至少一个信道的信道质量。 基于估计的信道质量来选择第一算法或第二算法。 基于选择的算法执行信道估计。 第一种算法可以是基于midamble乘法的算法。 第二种算法可以是中间码分割算法。 信道估计还可以包括估计信道的噪声并且基于所估计的噪声自适应地设置阈值以改善信道估计。 可以迭代地执行估计信道质量,第一或第二算法的选择和信道估计,以在信道上提供信号。 可以跨迭代修改自适应阈值。 信道估计还可以包括确定信道的延迟分布以细化信道估计。
    • 8. 发明申请
    • NETWORK INDICATION TO TRIGGER AN APPLICATION RELATED TO A WIRELESS EMERGENCY ALERT SYSTEM
    • 用于触发与无线紧急警报系统相关的应用的网络指示
    • WO2015105793A1
    • 2015-07-16
    • PCT/US2015/010308
    • 2015-01-06
    • QUALCOMM INCORPORATED
    • KHATIBI, FarrokhWANG, Jun
    • H04W4/02H04W4/22
    • H04W4/22H04W4/02H04W4/90H04W72/042H04W76/50
    • A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE receives system information including a trigger message and additional information. In addition, the UE enables an application and provides the additional information to the application based on the trigger message. The additional information may include location information. The UE may display map-related information associated with the location information. The UE may receive previous system information prior to receiving the system information. The previous system information may include an alert message, and the location information may be associated with the alert message. The previous system information may include an MID within a predetermined set of MIDs. The system information may include an MID different from the predetermined set of MIDs. The map-related information may indicate a geographic area associated with the location information in the system information.
    • 提供了一种用于无线通信的方法,装置和计算机程序产品。 该装置可以是UE。 UE接收包括触发消息和附加信息的系统信息。 此外,UE启用应用,并且基于触发消息向应用提供附加信息。 附加信息可以包括位置信息。 UE可以显示与位置信息相关联的地图相关信息。 UE可以在接收系统信息之前接收先前的系统信息。 先前的系统信息可以包括警报消息,并且位置信息可以与警报消息相关联。 先前的系统信息可以包括在预定的MID集合内的MID。 系统信息可以包括与预定的MID集合不同的MID。 地图相关信息可以指示与系统信息中的位置信息相关联的地理区域。