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发明公开
CN108886457A 用于SRS切换、发送和增强的系统与方法 有权

用于SRS切换、发送和增强的系统与方法
摘要：
用户设备(user equipment,UE)可以被分配用于下行链路载波聚合和/或载波选择的聚合分量载波集合。一些UE可能无法通过分配给其的聚合分量载波集合中的所有分量载波发送上行链路信号。在这种情况下，UE可能需要执行SRS切换，以便通过所有分量载波发送SRS符号。本公开的实施例提供了各种用于促进SRS切换的技术。例如，无线资源控制(radio resource control,RRC)消息可以用于通知周期性SRS配置参数。作为另一示例，下行链路控制指令(downlink control indication,DCI)消息可以用于通知非周期性SRS配置参数。还提供了许多其它示例。
摘要（英）：

User Equipments (UEs) may be assigned a set of aggregated component carriers for downlink carrier aggregation and/or carrier selection. Some UEs may be incapable of transmitting uplink signals over all component carriers in their assigned set of aggregated component carriers. In such scenarios, a UE may need to perform SRS switching in order to transmit SRS symbols over all of the component carriers. Embodiments of this disclosure provide various techniques for facilitating SRS switching. For example, a radio resource control (RRC) message may be used to signal a periodic SRS configuration parameter. As another example, a downlink control indication (DCI) message may be used to signal an aperiodic SRS configuration parameter. Many other examples are also provided.

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