US 6,983,172 B2 | ||
Method and apparatus for transmitting a traffic signal using an adaptive antenna array | ||
R. Mark Harrison, Grapevine, Tex. (US) | ||
Assigned to Motorola, Inc., Schaumburg, Ill. (US) | ||
Filed on Jan. 03, 2002, as Appl. No. 10/37,945. | ||
Prior Publication US 2003/0125002 A1, Jul. 03, 2003 | ||
Int. Cl. H04B 1/00 (2006.01); H04B 1/38 (2006.01); H04B 1/10 (2006.01) |
U.S. Cl. 455—561 | 32 Claims |
1. A method of transmitting a traffic signal with an adaptive antenna array of a base transceiver, such that a subscriber
unit utilizes a non-dedicated pilot transmitted from a reference antenna element for demodulation of the traffic signal, comprising:
determining a channel impulse response from a plurality of antenna elements in operative communication with the base transceiver
to a receive antenna of the subscriber unit;
computing an array weight vector that is at least a function of a reference channel impulse response of one of said plurality
of antenna elements configured as the reference antenna element and said channel impulse response of one of said plurality
of antenna elements that is an element of the adaptive antenna array; and
transmitting the traffic signal with the adaptive antenna array configured with said adaptive array weight vector.
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