180 Park Ave - Building 103
Florham Park, NJ
Sarat Puthenpura is Executive Director of Wireless Network Technology Research, responsible for basic and applied research in next generation wireless network technologies, planning and performance management tools. He joined AT&T Bell Labs in 1986 and has worked in a number of areas in telecommunication, predominantly in network planning and optimization spanning both wireless and wireline networks; in particular applications of mathematical programming techniques to solve complex problems in these areas. In addition to R&D activities, he has hands on experience in planning, implementing, and operating AT&T’s joint venture GSM network in India (currently Idea Cellular) from 1995 to 1998. Most recently, he has been leading the creation of an integrated network capacity planning and forecasting platform called NOVA (Network Optimization, Visualization and Analysis), which is extensively used for planning AT&T’s UMTS and LTE Radio Access Networks.
Sarat received B.Tech in Electrical Engineering from IIT Madras and Ph.D. in Electrical Engineering from McMaster University, Canada. In addition to several research papers, he has been the author of a graduate level textbook in mathematical programming ("Linear Optimization and Extensions - Theory and Algorithms", Prentice-Hall, 1991). He has taught in the Department of Electrical Engineering, Industrial Engineering, and well as in the Graduate School of Management, Rutgers University. He is a Senior Member of IEEE and serves on the editorial board of the IEEE/ACM Transactions on Networking.
Current research interests:
1. Ultra-dense Radio Access Network – Solutions and architectures that enable and manage the complexity and performance of dense deployment of small cells.
2. Dynamic Spectrum Technologies – Cognitive radio technologies needed to make optimal use of a mix of spectrum resources.
3. Next Generation Backhaul for ultra-dense small cells – Cost-effective optical fiber and alternative solutions to optimize small cell backhaul.
Method And Apparatus For Planning Mobile Switching Centers In A Wireless Network,
December 25, 2012
A method and apparatus for providing planning of a plurality of mobile switching centers in a wireless network are disclosed. For example, the method obtains input data, and determines a limit for at least one mobile switching center parameter in accordance with the input data. The method determines if the limit for the at least one mobile switching center parameter is exceeded and determines an optimal output for an objective function, wherein the objective function is based on a plurality of penalty factors, if the limit for the at least one mobile switching center parameter is exceeded.
Method And Apparatus For Joint Optimization Of Dedicated And Radio Access Networks,
July 17, 2012
A computerized method and system for integrated access network business planning for a telecommunications carrier. The invention enables a user to input a set of network business planning parameters that are utilized by a linear programming model to jointly optimize a carrier's dedicated and radio access network by executing a plurality of network optimization models and determine network configuration changes for the dedicated and radio access networks as a constrained optimization based on the set of business planning parameters.
Timed Fingerprint Locating In Wireless Networks,
July 17, 2012
Systems and techniques for determining the location of user equipment (UE) in a wireless network are disclosed. These techniques leverage geometric calculations for an overlaid bin grid framework mapping the wireless network area to store differential values for each frame of the bin grid framework for each pair of relevant NodeBs. A timing offset can be determined, such that when a time value from a target UE is accessed, the location can be quickly determined with minimal real time computation. In an aspect, the target UE time value can be search for in the pre-computed differential value data set indexed by a relevant NodeB site pair to return a set of frames (forming a hyperbola between the site pair) that can be intersected with a second set of frames for a second NodeB site pair for the same UE. The intersecting frames can represent the location of the UE in the wireless network. Further, the data can be leveraged to correct timing in the network.
Method And Apparatus For Generating Customized Maps,
February 21, 2012
A system and method for generating a map includes a database for storing a list of recipients and characteristics associated with each recipient in the list of recipients. The method and system also includes a control module for receiving a characteristic associated with at least one recipient in the list of recipients. The method and system also includes a rule engine for generating a map based at least in part on the characteristic associated with the at least one recipient using programmable rules.
Method And Apparatus for Designing Radio Access Networks Including Broadband Wireless Links,
April 19, 2011
A technique for reducing costs associated with a radio access network of a mobile telecommunications network includes configuring the radio access network using a linear programming model of the radio access network subject to constraints. The technique includes selecting cellular sites and hub locations of the radio access network to be connected by broadband wireless links based on the linear programming model and constraints. In at least one embodiment of the invention, a method of designing a radio access network of links between a cellular site and a core network includes selecting at least one first link of the radio access network to be at least one first wireless link at least partially based on a linear programming model of the radio access network. The method includes configuring an output device of a computer system to indicate the selection.
Arrangement For Guiding User Design Of Comprehensive Product Solution Using On-The-Fly Data Validation,
March 30, 2010
A computer-implemented method guides a user in designing a product defined by data. The method involves examining (420) items of the data to detect whether each item conforms to rules (106) or violates the rules; performing (431 . . . ) at least one action in response to a detection of a rule violation; displaying (450) the data to the user in a manner emphasizing at least one particular data item that caused the rule violation; receiving (460) any new data input from the user; and repeating the examining, action performing, and displaying steps using the new data. The displaying step may involve displaying data defining a current state of the product in a tabular (spreadsheet) format, including displaying data detected to have caused the rule violation in a first manner that is visibly distinct from displaying other data that is not detected to have caused the rule violation.
Method And Apparatus For Evaluating Optimal Access Providers For Long-Haul Communication Providers,
October 27, 2009
A method and an apparatus to automate the process and procedure for long haul service providers to choose the best quote from a pool of quotes or RFP responses as the best supplier in a country or region. The disclosed method and apparatus includes a mathematical framework which determines the characteristics of each supplier option and a method to determine the cost effectiveness of each option. This method and apparatus reduces overhead and improves the evaluation process for choosing optimal access providers for long-haul communication providers.