公开(公告)号：US20020183020A1

公开(公告)日：2002-12-05

申请号：US10161913

申请日：2002-06-04

Applicant: Nortel Networks Limited

Inventor： Peiying Zhu ,  Wen Tong ,  Claude C. Royer

IPC: H04B001/02

CPC classification number: H04L1/1887 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0068 ,  H04L1/1854 ,  H04L27/0012

Abstract: The present invention provides a unique feedback system in a wireless communication system wherein the transmission channel is always overloaded with data, which is configured and modulated at a select order of modulation. Based on the channel conditions, only a portion of the data can be successfully received. As such, the receiver will attempt to receive the data using demodulation techniques corresponding to the different levels of modulation used to encode the data transmitted. The receiver will determine the data that is recovered, or the highest order of modulation at which the data is recovered, and provide feedback to the transmitter. The transmitter will then retransmit the data that was not properly received. By overloading the channel at all times, the maximum amount of data capable of being transmitted over the channel is optimized without requiring or heavily relying on the receiver feeding back channel condition information to the transmitter.

Abstract translation: 本发明提供了一种在无线通信系统中的独特的反馈系统，其中传输信道总是被以按调制次序配置和调制的数据过载。 基于信道条件，只有一部分数据可以被成功接收。 因此，接收机将尝试使用对应于用于对发送的数据进行编码的不同调制电平的解调技术来接收数据。 接收机将确定恢复的数据，或恢复数据的最高调制阶段，并向发射机提供反馈。 然后，发射机将重传未正确接收的数据。 通过任何时候重载信道，可以优化通过信道传输的最大数据量，而不需要或严重依赖接收机向发射机反馈信道条件信息。