SYSTEM AND METHOD FOR LOCATION OF MOBILE DEVICES IN CONFINED ENVIRONMENTS

摘要

A distributed antenna system comprising a master unit configured for interfacing with at least one signal source, a plurality of remote units coupled with the master unit and configured for interfacing with a user device, a remote unit including filtering circuitry for decomposing uplink signals from a user device into a plurality of narrowband signals and processing circuitry for evaluating the plurality of uplink narrowband signals and providing data for a power profile that is associated with the uplink signals of a specific user device, and location measurement circuitry coupled with the remote units and configured to receive data for a plurality of different power profiles from a plurality of different remote units wherein the plurality of power profiles are associated with the same specific user device, the location measurement unit configured for processing the power profile data from the different remote units to determine the location of the specific user device with respect to the distributed antenna system.

主权项

1. A distributed antenna system comprising:
a master unit configured for interfacing with at least one signal source; a plurality of remote units coupled with the master unit and configured for interfacing with a user device, a remote unit including:
filtering circuitry for decomposing uplink signals from a user device into a plurality of narrowband signals;processing circuitry for evaluating the plurality of uplink narrowband signals and providing data for a power profile that is associated with the uplink signals of a specific user device; location measurement circuitry coupled with the remote units and configured to receive data for a plurality of different power profiles from a plurality of different remote units wherein the plurality of power profiles are associated with the same specific user device, the location measurement unit configured for processing the power profile data from the different remote units to determine the location of the specific user device in an area of the distributed antenna system.