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DIMINISHING THE IMPACT OF TIMING OFFSET IN DOWNLINK SIGNALS IN A WIRELESS NETWORK BY PUNCTURING RESOURCE ELEMENTS ON A PHYSICAL DOWNLINK CHANNEL
DIMINISHING THE IMPACT OF TIMING OFFSET IN DOWNLINK SIGNALS IN A WIRELESS NETWORK BY PUNCTURING RESOURCE ELEMENTS ON A PHYSICAL DOWNLINK CHANNEL
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机译:通过在物理下行链路通道上穿插资源元素,减少在无线网络中的下行链路信号中调整偏移量的影响
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摘要
When performing interference cancellation on selected information (e.g., synchronization signals, certain broadcast signals, etc.) through cross correlation, symbol periods of signals being combined will generally match up. Slight mismatches will generally produce negligible impact on interference cancellation. However, where the mismatch is severe due to significant timing offsets, serious performance degradation may occur, particularly when timing offsets are sufficiently large as to overlap data portions of a transmission. By selectively puncturing resource elements prior to the selected information and/or after the selected information, the selected information may be protected and allow for interference cancellation even in cases of large timing offsets.
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