Wireless data communication method for a base station using a common pilot channel and an individual pilot channel
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United States of America Patent
Stats
-
Aug 2, 2011
Grant Date -
Aug 23, 2007
app pub date -
Aug 23, 2006
filing date -
Feb 23, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Data transmission is performed using the most suitable data rate for the radiation pattern of an antenna. Using an individual pilot channel of a first slot, a base station transmits a pilot signal in a specified direction with a beam pattern having narrow directivity. A wireless terminal located in that direction receives the pilot signal and determines a data rate according to the reception quality of the pilot signal. The wireless terminal transmits to the base station a signal requesting the determined data rate. The base station receives that signal and, based on the requested data rate, transmits data to the wireless terminal with a beam pattern in the same direction as the direction in which the pilot signal was transmitted, using a data channel of a second slot, which occurs a predetermined number of slots after the first slot.
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