METHOD AND APPARATUS FOR PERFORMING FREQUENCY SCAN FOR WIRELESS SYSTEMS WITH VARIABLE CHANNEL BANDWIDTH
First Claim
1. A method for wireless communication, comprising:
- performing a frequency scan for a plurality of frequency channels based on a center frequency and a bandwidth of each of the plurality of frequency channels; and
identifying candidate frequency channels for acquisition based on results of the frequency scan.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques for performing a frequency scan to detect wireless systems operating on frequency channels with variable bandwidths are disclosed. In one aspect, a user equipment (UE) performs a frequency scan for a plurality of frequency channels and measures the received power of each frequency channel based on a center frequency and a bandwidth of the frequency channel. The UE identifies candidate frequency channels for acquisition based on the results of the frequency scan. In another aspect, a frequency scan of a band is performed by partitioning the band into multiple segments, measuring received powers of subcarriers or raster frequencies within each segment, and concatenating received powers of subcarriers or raster frequencies for all segments. A frequency scan is then performed based on the concatenated results for the multiple segments.
-
Citations
43 Claims
-
1. A method for wireless communication, comprising:
-
performing a frequency scan for a plurality of frequency channels based on a center frequency and a bandwidth of each of the plurality of frequency channels; and identifying candidate frequency channels for acquisition based on results of the frequency scan. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. An apparatus for wireless communication, comprising:
-
means for performing a frequency scan for a plurality of frequency channels based on a center frequency and a bandwidth of each of the plurality of frequency channels; and means for identifying candidate frequency channels for acquisition based on results of the frequency scan. - View Dependent Claims (16, 17, 18, 19)
-
-
20. An apparatus for wireless communication, comprising:
circuitry configured to; perform a frequency scan for a plurality of frequency channels based on a center frequency and a bandwidth of each of the plurality of frequency channels; and identify candidate frequency channels for acquisition based on results of the frequency scan. - View Dependent Claims (21, 22, 23, 24)
-
25. A computer program product, comprising:
a non-transitory computer-readable medium comprising; code for causing at least one computer to perform a frequency scan for a plurality of frequency channels based on a center frequency and a bandwidth of each of the plurality of frequency channels; and code for causing the at least one computer to identify candidate frequency channels for acquisition based on results of the frequency scan.
-
26. A method for wireless communication, comprising:
-
determining a band to scan, the band covering a plurality of raster frequencies; partitioning the band into a plurality of segments covering different portions of the band; determining received powers of a plurality of subcarriers within each of the plurality of segments; determining received powers of the plurality of raster frequencies within the band based on the received powers of the plurality of subcarriers within each of the plurality of segments; and performing a frequency scan based on the received powers of the plurality of raster frequencies within the band. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
-
-
35. An apparatus for wireless communication, comprising:
-
means for determining a band to scan, the band covering a plurality of raster frequencies; means for partitioning the band into a plurality of segments covering different portions of the band; means for determining received powers of a plurality of subcarriers within each of the plurality of segments; means for determining received powers of the plurality of raster frequencies within the band based on the received powers of the plurality of subcarriers within each of the plurality of segments; and means for performing a frequency scan based on the received powers of the plurality of raster frequencies within the band. - View Dependent Claims (36, 37, 38)
-
-
39. An apparatus for wireless communication, comprising:
circuitry configured to; determine a band to scan, the band covering a plurality of raster frequencies; partition the band into a plurality of segments covering different portions of the band; determine received powers of a plurality of subcarriers within each of the plurality of segments; determine received powers of the plurality of raster frequencies within the band based on the received powers of the plurality of subcarriers within each of the plurality of segments; and perform a frequency scan based on the received powers of the plurality of raster frequencies within the band. - View Dependent Claims (40, 41, 42)
-
43. A computer program product, comprising:
a non-transitory computer-readable medium comprising; code for causing at least one computer to determine a band to scan, the band covering a plurality of raster frequencies; code for causing the at least one computer to partition the band into a plurality of segments covering different portions of the band; code for causing the at least one computer to determine received powers of a plurality of subcarriers within each of the plurality of segments; code for causing the at least one computer to determine received powers of the plurality of raster frequencies within the band based on the received powers of the plurality of subcarriers within each of the plurality of segments; and code for causing the at least one computer to perform a frequency scan based on the received powers of the plurality of raster frequencies within the band.
Specification