Method and system for device positioning utilizing distributed transceivers with array processing

A system for processing signals, the system comprising:

• a mobile device, said mobile device being operable to:
• receive radio frequency signals from one or more base stations, wherein:
• each of said one or more base stations comprises a plurality of distributed transceivers;
• and
• each of said plurality of distributed transceivers comprises an independently configurable antenna array for transmitting said radio frequency signals to said mobile device;
• determine channel characteristics for said received radio frequency signals;
• generate channel measurements for said received radio frequency signals;
• and
• receive a position estimate for said mobile device from a location server, wherein:
• corresponding transmit diversity configurations are determined by said location server, said corresponding transmit diversity configurations being applied to said one or more base stations for both said channel measurements for said mobile device and channel measurements at scanned locations in a location scanning region;
• said position estimate for said mobile device over said location scanning region utilizing said channel measurements for said mobile device, said channel measurements at said scanned locations, and said corresponding transmit diversity configurations are calculated by said location server;
• a signature function for said channel measurements for said mobile device, and said channel measurements at said scanned locations over said corresponding transmit diversity configurations, are selected by said location server;
• said signature function is utilized by said location server to determine said position estimate for said mobile device over said corresponding transmit diversity configurations;
• said position estimate for said mobile device is updated by said location server based on a resolution of said signature function over said scanned locations in said location scanning region;
• and
• said updated position estimate for said mobile device is calculated by said location server, by utilizing a different signature function for each of said channel measurements for said mobile device and said channel measurements with said scanned locations over said corresponding transmit diversity configurations.

A method for processing signals, the method comprising:

• in a mobile device:
• receiving radio frequency signals from one or more base stations in a location scanning region, wherein:
• each of said one or more base stations comprises a plurality of distributed transceivers;
• and
• each of said plurality of distributed transceivers comprises an independently configurable antenna array for transmitting said radio frequency signals to said mobile device;
• generating channel measurements for said received radio frequency signals;
• communicating said generated channel measurements to a location server, wherein said location server:
• configures said independently configurable antenna array for said plurality of distributed transceivers in said one or more base stations in said location scanning region to transmit said radio frequency signals utilizing one or more channel transmit settings;
• and
• selects a subset of said communicated channel measurements for determining a position estimate for said mobile device having a desired resolution;
• and
• receiving said position estimate for said mobile device from said location server.

A system for processing signals, the system comprising:

• a mobile device, said mobile device being operable to:
• receive radio frequency signals from one or more base stations in a location scanning region, wherein:
• each of said one or more base stations comprises a plurality of distributed transceivers;
• and
• each of said plurality of distributed transceivers comprises an independently configurable antenna array for transmitting said radio frequency signals to said mobile device;
• generate channel measurements for said received radio frequency signals;
• communicate said generated channel measurements to a location server, wherein said location server:
• configures said independently configurable antenna array for said plurality of distributed transceivers in said one or more base stations in said location scanning region to transmit said radio frequency signals utilizing one or more channel transmit settings;
• and
• selects a subset of said communicated channel measurements for determining a position estimate for said mobile device having a desired resolution;
• and
• receive said position estimate for said mobile device from said location server.