公开(公告)号：US08315210B2

公开(公告)日：2012-11-20

申请号：US10523940

申请日：2003-07-29

申请人： Matthew P. J. Baker ,  Timothy J. Moulsley

发明人： Matthew P. J. Baker ,  Timothy J. Moulsley

IPC分类号： H04W72/14 ,  H04B7/712 ,  H04B1/00 ,  H04L1/14

CPC分类号： H04L1/1854 ,  H04L1/16 ,  H04L1/1803 ,  H04L5/0055 ,  H04L5/14 ,  H04L2001/125 ,  H04W52/0216 ,  H04W72/04 ,  H04W72/0446 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/25

摘要： A communication system includes a downlink indicator channel for the transmission of an indicator signal indicating that a data packet is scheduled to be transmitted on a downlink data channel from a primary station to a secondary station. In response to detection of the indicator signal, the secondary station transmits a status signal, for example a negative acknowledgement signal, on an uplink channel to the primary station immediately before transmission of a positive or negative acknowledgement signal to indicate the status of the received data packet. By providing the primary station with two chances to detect the case where the secondary station fails to detect the indicator signal, peak power requirements of the uplink channel can be reduced, thereby reducing system interference levels.

摘要翻译： 通信系统包括用于传送指示信号的下行链路指示符信道，指示数据分组被调度为在从主站到次站的下行链路数据信道上发送。 响应于指示符信号的检测，次站在发送正或否的确认信号之前立即在上行链路信道上向主站发送状态信号，例如否定确认信号，以指示接收到的数据的状态 包。 通过为主站提供两种机会来检测次站无法检测到指示信号的情况，可以降低上行链路信道的峰值功率要求，从而降低系统干扰电平。