Invention Application
US20160202350A1 TECHNIQUES FOR USE IN WIDEBAND TIME-OF-ARRIVAL ESTIMATION 有权
用于宽带时间估计的技术

TECHNIQUES FOR USE IN WIDEBAND TIME-OF-ARRIVAL ESTIMATION
Abstract:
Provided are apparatus and methods for ranging between a plurality of wireless devices. An exemplary method includes, at a first wireless device, transmitting a primary portion symbol comprising a first packet and transmitting a secondary portion symbol. The secondary portion symbol is transmitted simultaneously at a lower transmit power than the primary portion symbol, and the secondary portion symbol comprises a second packet identical to the first packet. The primary portion symbol can be transmitted in a first channel having a substantially 20 MHZ bandwidth and the secondary portion can be transmitted in a second channel having a substantially 20 MHZ bandwidth. The first and second channels are substantially adjacent in frequency. After transmitting the primary portion symbol, for example, a high-throughput long-training-field symbol or a very-high-throughput long-training-field symbol can be repetitively transmitted. This exemplary method enhances time-of-arrival estimation accuracy, minimizes decoding bottlenecking, and maximizes wireless device range.
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