SCALABLE SYNCHRONIZATION FOR DISTRIBUTED MULTIUSER MIMO

摘要

Each wireless access point in a network may transmit pilot bursts; receive pilot bursts; determine the timing, carrier frequency, and/or sampling frequency of each received pilot burst; determine an offset between the timing, carrier frequency, and/or sampling frequency of each received pilot burst and its own transmitted signals; and deliver one or more of these determined offsets to a computer server. The computer server may receive these offsets and, based on them, compute and deliver to each wireless access point a timing, carrier frequency, and/or sampling frequency correction factor. Each wireless access point may adjust its transmitted timing, carrier frequency, and/or sampling frequency in accordance with these correction factors.

主权项

1. A wireless access point for a computer network system having multiple wireless access points comprising:
a transmitter having a configuration that wirelessly transmits signals having a timing and carrier frequency, including pilot bursts; a receiver having a configuration that wirelessly receives signals having a timing and carrier frequency, including pilot bursts; and a processing system having a configuration that:
causes the transmitter to transmit pilot bursts;determines the timing and carrier frequency of each received pilot burst;determines a timing offset between the timing of each received pilot burst and the timing of the transmitted signals; anddetermines a carrier frequency offset between the frequency of each received pilot burst and the carrier frequency of the transmitted signals.