System for efficiently providing coverage of a sectorized cell for common and dedicated channels utilizing beam forming and sweeping
AssigneeInterDigital Technology Corporation
InventorAngelo Cuffaro
Life of this patent
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Abstract
A communication system transmits and receives communications within a sectorized cell between at least one primary station and at least one secondary station. The communication system includes a unit for generating and shaping a beam; an antenna for transmitting and receiving signals within said beam; and a unit for directing the beam. The shaped beam is directed at a plurality of predetermined directions; either continuously or discretely.
Claims24
A method for transmitting and receiving communications between at least one base station and at least one wireless transmit/receive unit (WTRU), where the base station transmits a plurality of common channels covering a sectorized cell using at least one beam, the method comprising:
- generating at a base station at least one shaped beam for transmitting and receiving a communication;
- sweeping the shaped beam, wherein the beam is selectively directed at a plurality of locations, each location at a predetermined time;
- receiving the sweeped beam at a WTRU;
- determining at said WTRU the time of receipt of the sweeped beam;
- reporting from the WTRU to said base station the time of receipt of the sweeped beam;
- and
- determining the location of said WTRU based on the reported time of receipt of the received beam.
The method of 1, wherein said plurality of directions coincide with the sectors of the cell.
A wireless communication system for transmitting and receiving communications between at least one base station and at least one wireless transmit/receive unit (WTRU), where the base station transmits a plurality of common channels covering a sectorized cell using at least one beam, the system comprising:
- at least one base station comprising:
- a beam generator for generating at least one shaped beam for transmitting and receiving a communication;
- a beam sweeper for sweeping the shaped beam, wherein the beam is selectively directed at a plurality of locations, each location at a predetermined time;
- and
- a processor configured for determining the location of said WTRU based on a reported time of receipt of a received beam;
- and
- at least one wireless transmit/receive unit (WTRU) comprising:
- a transceiver for receiving a shaped beam from said base station;
- and
- a processor configured for determining the time of receipt of the sweeped beam;
- wherein the WTRU reports the time of receipt of the sweeped beam to said base station.
Dependencies are inferred from the claim text.