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    • 6. 发明授权
    • Apparatus, and associated method, for requesting data retransmission in a packet radio communication system
    • 用于在分组无线电通信系统中请求数据重传的装置和相关方法
    • US07298701B2
    • 2007-11-20
    • US10285899
    • 2002-10-31
    • Liangchi HsuMark W. Cheng
    • Liangchi HsuMark W. Cheng
    • H04J3/22
    • H04L1/1848H04L1/1812H04W28/18H04W80/02
    • Apparatus, and an associated method, that reduces the occurrence of generation of redundant requests for retransmission of packet-formatted data, formatted at a physical layer and at a higher-logical layer, such as at an RLP layer. An estimate of an appropriate delay period is formed. The estimate is responsive to communication conditions in the communication system. When a data packet appears to have been inadequately delivered to the RLP logical layer, a DELAY_DETECTION_WINDOW timer is caused to time out the delay period estimated by the estimator. The request for retransmission, generated at the RLP layer, is permitted, upon expiration of the timer if the data packet has not yet been successfully delivered to the RLP layer and the transmitter has not given up the data packet delivery.
    • 装置和相关联的方法,其减少在物理层和较高逻辑层(例如在RLP层)处格式化的分组格式数据的重传的冗余请求的产生的发生。 形成适当延迟期的估计。 估计是响应通信系统中的通信条件。 当一个数据包似乎没有被充分传递给RLP逻辑层时,会导致DELAY_DETECTION_WINDOW定时器超出估计器估计的延迟时间。 如果数据包尚未成功传送到RLP层并且发送器尚未放弃数据包传送,则允许在RLP层产生的重发请求。