System and method for frequency planning in wireless communication networks
First Claim
1. A method of generating an impact matrix for use in allocating frequency channels in a wireless communication network service area, the network area divided into a plurality of sectors which are further divided into a plurality of pixels, the impact matrix providing impact scores which characterizes sector by sector channel interference in the network service area, the method comprising:
- merging signal propagation analysis data and empirical measurement data to determine an anticipated signal level for each one of the plurality of pixels in the network service area;
determining which one of the sectors in the network service area is a serving sector for the pixel;
determining channel interference impact scores for the pixel based on the interference between the pixel'"'"'s serving sector and each of the other sectors in the network service area; and
providing sector by sector impact scores.
0 Assignments
0 Petitions
Accused Products
Abstract
A system and method for frequency planning in a wireless communication network area using an impact matrix which relates signal interference impacts between sectors in a network service area for co-channel and adjacent channel interference. The impact matrix uses weighted propagation analysis and empirical measurement data to determine signal levels within each pixel of a network service area. The system merges the propagation analysis and empirical measurement data according to user assigned confidences.
36 Citations
26 Claims
-
1. A method of generating an impact matrix for use in allocating frequency channels in a wireless communication network service area, the network area divided into a plurality of sectors which are further divided into a plurality of pixels, the impact matrix providing impact scores which characterizes sector by sector channel interference in the network service area, the method comprising:
-
merging signal propagation analysis data and empirical measurement data to determine an anticipated signal level for each one of the plurality of pixels in the network service area;
determining which one of the sectors in the network service area is a serving sector for the pixel;
determining channel interference impact scores for the pixel based on the interference between the pixel'"'"'s serving sector and each of the other sectors in the network service area; and
providing sector by sector impact scores. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A system for developing an impact matrix for use in frequency channel planning in a wireless communication network service area, the communication network service area divided into sectors and pixels, the system comprising:
-
means for determining a signal strength level for each pixel in the network service area;
means for determining which is a serving sector for each pixel in the network service area;
means for determining an interference impact score between each pixel'"'"'s serving sector and each of the other non-serving sectors in the network service area; and
means for determining overall sector by sector impact scores for inclusion in the impact matrix, the overall sector by sector impact scores based on the interference impact scores for the pixels within which a sector is the serving sector. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A computer implemented process for creating an impact matrix for use in allocating channels in a wireless network which is divided into sectors, the impact matrix constructed based on a pixel by pixel analysis of signal interference within the network, the process comprising:
-
determining a serving sector for at least one pixel in the network;
determining weighted interference impact scores for the at least one pixel, the weighted interference impact scores based upon each of the non-serving sectors'"'"' interference impact upon the pixel'"'"'s serving sector; and
determining overall impact scores based upon the weighted interference impact scores for the at least one pixel. - View Dependent Claims (21, 22)
-
-
23. A method of using an impact matrix for frequency channel planning in a wireless communication network divided into sectors, the impact matrix providing sector by sector signal quality interference ratings, the method comprising:
-
determining an incremental quality degradation for a potential channel assignment in the network using the impact matrix; and
assigning frequency channels to sectors according to the incremental quality degradation provided by the impact matrix. - View Dependent Claims (24, 25)
-
-
26. A computer readable medium containing a program which when executed on a computer causes the computer to perform a method for creating an impact matrix for use in frequency channel planning in a network service area which is divided into a plurality of pixels, the method comprising:
-
determining a serving sector for each of the plurality of pixels in the network;
determining weighted interference impact scores for the selected pixel, the weighted interference impact scores based upon each of the non-serving sectors'"'"' interference impact upon the pixel'"'"'s serving sector; and
determining overall impact scores based upon the weighted interference impact scores, wherein the impact matrix characterizes the interference relationship between sectors in the network service area.
-
Specification