Nortel Networks Corporation

Chang Yu

Sairam Subramanian

Hua Jiang

Hee C Lee

Nikhil Jain

Will A Egner

Kalyan K Basu

Carlos M Garcia

Seshagiri Rao Madhavapeddy

Mini Vasudevan

Stone H Tseng

Hakan Ernam

Ping Yang

Andrew Sendonaris

Venugopal Veeravalli

Mohamed A Landolsi

Sheng-Chou Lin

Seshu R Madhavapeddy

Xu Han

Kenni Rasmussen

Michael Frenkel

Valery Budiansky

A method for providing information to devices in a format preferable to a device type. This is achieved by receiving an information request, detecting the device type from which the information request originated, adapting the content for presentation on the device type, and presenting the information to the device. By the use of this invention, telecommunications users are presented information in a format suitable to the device being used.

Device aware internet portal

The present invention is a system for optimizing an existing wireless network and additions to an existing network. The system determines a value representing estimation of traffic in discrete bins within a geographic area. The traffic estimation includes a distribution of handover and new cell traffic based at least in part on the presence of a road in any bin or the proximity of a bin to a handover boundary. The cell coverage and carrier allocations of existing cells are adjusted in view of the traffic estimation.

Automated wireless network design

The present invention is directed to a method and apparatus for assigning channels in a cellular environment. A time period T is defined in which cellular operational measurement information such as traffic information and mobility information are collected. Channels that are available for allocation are collected and maintained in a matrix. The predicted number of channels are calculated based on the operational measurement information. Using the channels available for allocation and the predicted number of channels, channels are allocated for use. As the operational measurement information changes the time period T is adjusted to accommodate the changes in traffic or mobility within the cellular system.

Method and apparatus for the self engineering of adaptive channel allocation

An automated method of assigning frequencies to sectors of a wireless telecommunications system for use during a drive test calculates a usage factor for each frequency that is assigned to the system to be tested. The usage factor for a particular frequency is equal to the number of sectors of the system to be tested to which the particular frequency is assigned. The method selects a sector and selects the frequency assigned to the selected sector with the smallest usage factor. The method keys up the selected frequency in the selected sector and keys down that frequency and the adjacent frequencies in each of the other sectors of the system to be tested. The method continues the foregoing sequence of steps until a unique frequency has been keyed up for each sector in the system to be tested.

Method of assigning frequencies for use during wireless system drive testing

Provided herein is a computer-implemented method for generating an optimized cellular-network cell-site plan for an area. A plurality of cellular-traffic demand nodes distributed across the area is provided. Each cellular-traffic demand node of the plurality of cellular-traffic demand nodes has an associated weighting characteristics set. The plurality of nodes are consolidated into a plurality of centroids. Each centroid represents a number of nodes that come within a traffic threshold. A potential cell site is positioned on each of the centroids. Each potential cell site has an associated base-transmitter-station parameter characteristics set. The demand node coverage of each potential cell site is determined with respect to a signal strength of the potential cell site. From the plurality of potential cell sites a minimized cell-site subset is selected while maintaining sufficient cellular service coverage of the plurality of demand nodes.

Method for optimizing cell-site placement

The foregoing objects are achieved as is now described. Provided are a method and system for utilization with wireless communications systems having a cellular architecture covering a geographic area. The method and system accomplish their objects via the following. The geographic area is defined. One or more pairs of the sectors within the defined geographic area wherein a weak connection zone exists are determined. The geographic area is decomposed into two or more sub-areas wherein each sub-area is isolated from other sub-areas by the determined one or more pairs of sectors having a weak connection zone. A first of the sub-areas is selected. Frequency groups are assigned to each sector within the first selected sub-area such that signal to noise ratio is optimized. Thereafter, a second of the sub-areas is selected. One or more sectors within the second selected one of the sub-areas which are linked to sectors within the first selected sub-area are selected. Frequency groups are assigned to the selected sectors within the selected second of the sub-areas such that signal to noise ratio in the selected sector within the selected second of the sub-areas is optimized. Thereafter, frequency groups are assigned to every other sector within the selected second of the sub-areas such that signal to noise ratio is optimized across the second selected sub-area and such that signal to noise ratio over the defined geographic area is optimized.

Method and system for solving cellular communications frequency planning

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Plano, TX, United States of America

Chang Yu