Method and device for identifying antennae to transmit wireless signals
First Claim
1. A method for transmitting wireless signals in a CDMA distributed antenna system, the method comprising the steps of:
- providing a plurality of antennas, where each antenna is configured to transmit a wireless signal to a receiver;
identifying one of the plurality of antennas to transmit the wireless signal to the receiver by selecting the one of the plurality of antennas based on a geographic proximity to the receiver, wherein selecting the one of the plurality of antennas based on the geographic proximity to the receiver includes (i) calculating a distance between each one of the plurality of antennas and the receiver thereby establishing a set of distances, and (ii) selecting one of the plurality of antennas corresponding to the smallest distance among the set of distances; and
transmitting the wireless signal by the one of the plurality of antennas to the receiver.
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Accused Products
Abstract
A method and system for optimizing the use of antennae in a CDMA distributed antenna system. A pathway manager may identify and select an optimal antenna to transmit a wireless signal from a BTS to a receiver. The non-selected antennae may be disabled from transmitting signals to the receiver by suppressing the Walsh code and PN offsets of the BTS and receiver. The pathway manager may use criteria such as availability, proximity, reliability, and strength of signals and antennae to select an optimal antenna. Communications between the receiver and the antennae may be used to determine such criteria. By selecting an optimal antenna, the pathway manager may conserve energy from a BTS and reduce power requirements for an antenna system.
43 Citations
11 Claims
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1. A method for transmitting wireless signals in a CDMA distributed antenna system, the method comprising the steps of:
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providing a plurality of antennas, where each antenna is configured to transmit a wireless signal to a receiver; identifying one of the plurality of antennas to transmit the wireless signal to the receiver by selecting the one of the plurality of antennas based on a geographic proximity to the receiver, wherein selecting the one of the plurality of antennas based on the geographic proximity to the receiver includes (i) calculating a distance between each one of the plurality of antennas and the receiver thereby establishing a set of distances, and (ii) selecting one of the plurality of antennas corresponding to the smallest distance among the set of distances; and transmitting the wireless signal by the one of the plurality of antennas to the receiver. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A CDMA distributed antenna system comprising in combination:
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a plurality of antennas, where each antenna is configured to transmit a wireless signal; a pathway manager coupled to the plurality of antennas, the pathway manager configured to identify one of the plurality of antennas to transmit the wireless signal by selecting the one of the plurality of antennas based on a geographic proximity to the receiver, wherein the pathway manager identifies the one of the plurality of antennas by calculating a distance between each antenna and the receiver thereby establishing a set of distances and selecting the one of the plurality of antennas corresponding to the smallest distance among the set of distances; and a receiver configured to receive the wireless signal transmitted by the one of the plurality of antennas. - View Dependent Claims (8, 9, 10, 11)
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Specification