System and method for adjusting antenna radiation in a wireless network
AssigneeLucent Technologies Inc.
InventorsDavid Di Huo, Eshwar Pittampalli
Life of this patent
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Abstract
A method for adjusting antenna radiation in a wireless network involves varying antenna radiation directions of antennas throughout a defined range. A test receiver measures signal parameters from the antennas at measurement locations as the antenna radiation directions are varied. The processing system determines a resultant antenna radiation direction for each of the antennas in the wireless network, or segment thereof, based upon the measured signal parameters.
Claims41
A method for adjusting antenna radiation for a wireless network or segment thereof, the method comprising the steps of:
- varying antenna radiation directions of a plurality of antennas throughout ranges of antenna radiation directions;
- measuring signal parameters for the varied antenna radiation directions for a plurality of measurement locations;
- and
- determining a resultant antenna radiation direction within the ranges for each of the antennas in the wireless network or segment thereof in which to transmit to a plurality of subscribers based on the measured signal parameters to achieve desired performance criteria, by determining a system-wide minimal or maximum average of an interference signal strength over a group of the measurement locations and identifying a constellation of resultant antenna radiation directions associated with the system-wide minimal or maximum average for the group.
A method for adjusting antenna radiation for a wireless network or segment thereof, the method comprising the steps of:
- varying antenna radiation directions of a plurality of antennas throughout ranges of antenna radiation directions;
- measuring signal parameters for the varied antenna radiation directions for a plurality of measurement locations;
- organizing the measured signal parameters into a location measurement data structure corresponding to each measurement location;
- deriving averages of interference from the measured signal parameters and associating each average of interference with candidates for a resultant antenna radiation directions;
- and
- determining the resultant antenna radiation direction within the ranges for each of the antennas in the wireless network or segment thereof in which to transmit to a plurality of subscribers based upon data in the location measurement data structure are derived averages of the interference, such that a measurement characteristic of transmission from the antenna meets a desired performance criteria.
A system for adjusting antenna radiation in a wireless network, the system comprising:
- a plurality of base stations associated with corresponding antenna systems;
- a plurality of local antenna controllers for controlling antenna radiation directions of the antenna systems such that the antenna radiation directions associated with each antenna system are cycled throughout a range of antenna radiation directions;
- a plurality of local schedulers for communicating with corresponding ones of the local antenna controllers, the local scheduler coordinating the antenna radiation patterns of different ones of the antenna systems in a time-division multiplex manner such that only one antenna radiation pattern from one antenna system and its associated base station is generated at any time during a measurement procedure.
A system for adjusting antenna radiation in a wireless network, the system comprising:
- a plurality of base stations associated with corresponding antenna systems;
- a central antenna controller for controlling antenna radiation directions of the antenna systems such that the antenna radiation directions associated with each antenna system are cycled throughout a range of antenna radiation directions;
- a central scheduler for communicating with the central antenna controller, the central scheduler coordinating the antenna radiation patterns of different ones of the antenna systems in a time-division multiplex manner such that only one antenna radiation pattern from one antenna system and its associated base station is generated at any time during a measurement procedure.
A method for adjusting antenna radiation for a wireless network or segment thereof, the method comprising the steps of:
- varying antenna radiation directions of a plurality of antennas throughout ranges of antenna radiation directions;
- measuring signal parameters for the varied antenna radiation directions for a plurality of measurement locations;
- determining a resultant antenna radiation direction within the ranges for each of the antennas in the wireless network or segment thereof in which to transmit based on a collection of the measured signal parameters to achieve desired performance criteria.
Dependencies are inferred from the claim text.