OPERATION OF HETEROGENEOUS WIRELESS NETWORK BY DETERMINING LOCATION OF WIRELESS DEVICE

摘要

PROBLEM TO BE SOLVED: To provide techniques for improving operational efficiency of a wireless network using information about locations of wireless devices being served by the wireless network.SOLUTION: A heterogeneous wireless communication network includes a macrocell base station and one or more low power nodes. The location of a wireless device is estimated on the basis of feedback reports received from the wireless device in response to downlink transmissions of a reference signal. On the basis of the estimated location, a schedule for future transmissions of the reference signal to the wireless device is determined. The schedule specifies a frequency of transmission of the reference signals. The schedule specifies downlink transmission antenna configuration to be used for the reference signal transmissions.