Reduction of intermodualtion product interference in a network having sectorized access points
AssigneeAndrew Corporation
InventorAndria Van Der Merwe
Life of this patent
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Abstract
A wireless network having a sectorized wireless access points defined by respective directional antennas that operate using equally spaced carrier frequencies, the carrier frequencies assigned to the sectors in individual access points to reduce intermodulation product interference among the carrier frequencies within the wireless access point.
Claims27
A wireless network comprising:
- a first plurality of wireless access points, each having second pluralities of sectors defined by respective directional antennas;
- the sectors within the wireless access points operating using carrier frequencies;
- the carrier frequencies of a particular access point being selected to reduce interfering intermodulation products among the carrier frequencies at that particular access point.
A wireless access point configured for operation in a wireless network, the access point comprising:
- a plurality directional antennas defining a plurality of sectors;
- the sectors within the access point operating using carrier frequencies;
- the carrier frequencies being selected to reduce interfering intermodulation products among the carrier frequencies in the access point.
A wireless access point comprising:
- a plurality of defined sectors;
- at least one carrier frequency associated with each sector;
- the associated carrier frequencies of at least two sectors having intermodulation products which do not fall at carrier frequencies of other sectors.
A method of assigning carrier frequencies to a sectorized access point in a wireless network comprising:
- initially selecting a plurality of carrier frequencies for some of a plurality of sectors of the access point;
- selecting subsequent carrier frequencies for other of the plurality of sectors of the access point;
- the subsequent selections being based on how the intermodulation products of a subsequently selected carrier frequency affect the initially selected carrier frequencies.
A method of installing a wireless network comprising:
- positioning a plurality of access points, each having a plurality of sectors;
- assigning carrier frequencies to sectors of each access point to reduce intermodulation product interference among the carrier frequencies in the sectors of the access points.
A method of assigning equally spaced carriers frequencies to a sectorized access point of a wireless network comprising:
- determining undesired intermodulation products of the equally spaced carriers frequencies;
- selecting a first carrier frequency to be assigned to a first sector in the wireless access point;
- selecting a second carrier frequency to be assigned to a second sector in the wireless access point;
- selecting a third carrier frequency to be assigned to a third sector in the wireless access point;
- comparing the intermodulation products of the first, the second and the third carrier frequencies to the undesired intermodulation products of the equally spaced carriers frequencies;
- assigning the selected carrier frequencies to sectors of the access point based on such comparison.
Dependencies are inferred from the claim text.