APPARATUSES, SYSTEMS, AND METHODS FOR DETERMINING LOCATION OF A MOBILE DEVICE(S) IN A DISTRIBUTED ANTENNA SYSTEM(S)

摘要

Distributed antenna systems provide location information for client devices communicating with remote antenna units. The location information can be used to determine the location of the client devices relative to the remote antenna unit(s) with which the client devices are communicating. A location processing unit (LPU) includes a control system configured to receive uplink radio frequency (RF) signals communicated by client devices and determines the signal strengths of the uplink RF signals. The control system also determines which antenna unit is receiving uplink RF signals from the device having the greatest signal strength.

主权项

1. A location processing unit (LPU) configured to provide location information for at least one client device wirelessly communicating in a distributed communication system, comprising:
a control system configured to:
receive uplink radio frequency (RF) signals communicated by the at least one client device wirelessly communicating to a plurality of antenna units;determine signal strengths of the uplink RF signals;determine which antenna unit among the plurality of antenna units is receiving uplink RF signals from the at least one client device having the greatest signal strength; anddetermine location information for the at least one client device based on identification of the antenna unit receiving the uplink RF signals from the at least one client device having the greatest signal strength, wherein
the control system is configured to convert the received uplink RF signals into baseband uplink RF signals,the control system is further configured to synchronize to a downlink RF signal received from a base station, andthe control system is configured to determine the signal strengths of the uplink RF signals as a function of a fast Fourier transform (FFT) of a window of samples of the uplink RF signals.