Adjusting wireless signal transmission power

摘要

A home base station receives signal to interference and noise ratio data from at least one access terminal, determines whether a transmission power of the home base station should be adjusted based on the received signal to interference and noise ratio data, and then adaptively adjusts the transmission power of the home base station based on the received signal to interference and noise ratio data.

主权项

1. A method comprising:
receiving, at a home base station, signal to interference and noise ratio (SINR) data from at least one access terminal; calculating a coverage failure probability based at least in part on the SINR data, the calculating comprising:
determining that the at least one access terminal is located within a threshold distance of the home base station,building a histogram associated with the at least one access terminal based on the received SINR data,calculating a probability distribution function for the at least one access terminal based upon the histogram;calculating the coverage failure probability function by computing a weighted sum of probability distribution functions;calculating a coverage failure complementary cumulative distribution function based upon the weighted sum; andaveraging the coverage failure probability function over a period of time to produce the coverage failure probability; determining to adjust a transmission power of the home base station based at least in part on the coverage failure probability; and adaptively adjusting the transmission power of the home base station based at least in part on the coverage failure probability including:
setting the transmission power to a quiescent power level in response to determining that there is no active connection on the home base station.