METHOD OF DYNAMIC PDCP STATUS REPORT POLLING FOR LTE-WLAN AGGREGATION

The invention discloses a method of dynamic PDCP status report polling for LTE-WLAN aggregation. To facilitate LWA PDCP setting/scheduling, the method of providing dynamic PDCP status report polling is proposed. To enhance scheduling efficiency, the transmitter (can be eNB from DL or UE for UL) can dynamically poll PDCP status report for LWA behavior. The polling can be done by a standalone PDCP control PDU or use reserved bit in PDCP data PDU. The triggering condition for PDCP status polling includes: PDCP without poll time exceeds a first threshold, PDCP without poll bytes exceeds a second threshold, PDCP without poll PDU numbers exceeds a third threshold, a data buffer is empty, and when LWA is deactivated. 为了促进LWA PDCP设置/调度，提供动态PDCP状态报告轮询的方法被提出。为了提高调度效率，发送端(可以是来自DL的eNB或者用于UL的UE)能够针对LWA行为动态地轮询PDCP状态报告。该轮询可以是由独立的PDCP控制PDU完成的或者使用PDCP数据PDU中的保留位。用于PDCP状态轮询的触发条件包括：没有轮询时间的PDCP超过第阈值，没有轮询字节的PDCP超过第二阈值，没有轮询PDU数量的PDCP超过第三阈值，数据缓冲区是空的，以及当LWA被去激活时。