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公开(公告)号：JP2001204082A
公开(公告)日：2001-07-27
申请号：JP2000336932
申请日：2000-11-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , HAMPEL KARL GEORG , HOBBY JOHN D , POLAKOS PAUL ANTHONY
Abstract: PROBLEM TO BE SOLVED: To provide a method to characterize, adjust and/or optimize the entire performance of a wireless communication network. SOLUTION: An optimum process on a differential coefficient basis is applied to the wireless communication network to optimize an object function consisting of a network performance index with respect to a network tuning parameter variable. The optimization is based on 1st or high-order differential coefficient relating to a network parameter variable selected from the object function. The object function includes one or more of e.g. maximization of the network coverage and of the network capacity and minimization of network resources. An additional network parameter not acting like a variable in the optimization process acts like a limiting condition in the optimum process. This invention can substantially enhance design, adjustment and the optimum process of the wireless network.
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公开(公告)号：JP2001204069A
公开(公告)日：2001-07-27
申请号：JP2000336931
申请日：2000-11-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , HAMPEL KARL GEORG , HOBBY JOHN D , MANKIEWICH PAUL MATTHEW , POLAKOS PAUL ANTHONY
Abstract: PROBLEM TO BE SOLVED: To provide a method to characterize, adjust and/or optimize the entire performance of a wireless communication network. SOLUTION: This invention provides a method to characterize the entire network performance by using a two-dimensional capacity/coverage diagram. The diagram consists of plotting of vectors denoting the entire network performance, each having a network capacity component and a network coverage component so as to cope with various network configurations. This diagram permits comparison of various network configurations visually, very clearly and efficiently from the standpoint of the entire network performance. Moreover, the diagram allows users to visually understand the trade-off between the attributes of two competitive network performances, e.g. the network capacity and the network coverage.
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公开(公告)号：JP2001203631A
公开(公告)日：2001-07-27
申请号：JP2000336930
申请日：2000-11-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , HAMPEL KARL GEORG , HOBBY JOHN D , POLAKOS PAUL ANTHONY
Abstract: PROBLEM TO BE SOLVED: To enhance an estimate (evaluation).interpolation technology of a network parameter used for modeling a wireless network. SOLUTION: Values of one link parameter or more of the wireless network are estimated (evaluated) on a test point introduced at least partially from road position data (e.g. road map) characterizing an area served by the wireless network. This estimate (evaluation) can be executed by using a link model. In order embodiment, the values of one link parameter or more of the wireless network are interpolated along a plurality of edges (sides) between data points defining a mesh. The edges correspond to roads. Then by using the interpolated value, the measure of the network performance is generated. A set of the edge weights denoting traffic in the wireless network is related to the edges of the mesh.
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公开(公告)号：BR0006770A
公开(公告)日：2001-08-14
申请号：BR0006770
申请日：2000-10-26
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , HAMPEL KARL GEORG , POLAKOS PAUL ANTHONY , HOBBY JOHN D
Abstract: Techniques for determination of network parameters in, e.g., a processor-implemented system for characterizing, adjusting or optimizing the performance of a wireless network. In an illustrative embodiment, values of one or more link parameters of the wireless network are interpolated along edges in a mesh of data points derived at least in part from road location data characterizing an area serviced by the wireless network. A measure of network performance, e.g., a coverage measure based on pilot signal-to-interference ratio, may be generated using the interpolated values. The edges of the mesh have associated therewith a set of edge weights representative of traffic in the wireless network. The edge weights may be adjusted so as to be in agreement with available network traffic data. Interpolating between the data points of the road-based mesh permits the network performance measure to be computed as a smooth, differentiable function of the one or more link parameters, thereby simplifying network characterization, adjustment and optimization.
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5.发明专利
公开(公告)号：CA2324387A1
公开(公告)日：2001-05-04
申请号：CA2324387
申请日：2000-10-24
Applicant: LUCENT TECHNOLOGIES INC
Inventor： HOBBY JOHN D , POLAKOS PAUL ANTHONY , HAMPEL KARL GEORG , MANKIEWICH PAUL MATTHEW , CLARKSON KENNETH L
Abstract: Improved techniques for characterizing, adjusting and optimizing the overa ll performance of a wireless network. In an illustrative embodiment, the overal l network performance for a particular network configuration is characterized by a vector with two components, one representing network coverage and another representing netwo rk capacity. Network coverage is defined by the likelihood of service under load, includi ng interference, and may be further weighted by traffic density. Network capacity is defined by an amount of traffic with a given spatial distribution that can be served at a given overall target-blocking rate. The overall network performance may be characterized using a two-dimensional capacity/coverage diagram which plots overall network performance vectors, each including a network capacity component and a network coverage component , for various network configurations. The overall network performance may be improved or optimized with respect to a given subset of network parameters by using an algorithm that proposes potential network configurations and evaluates them with respect to their overall network performance.
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Patent Agency Ranking
公开(公告)号：DE60036263D1
公开(公告)日：2007-10-18
申请号：DE60036263
申请日：2000-10-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , HAMPEL KARL GEORG , HOBBY JOHN D , POLAKOS PAUL ANTHONY
Abstract: Improved techniques for optimizing performance of a wireless network. In an illustrative embodiment, a derivative-based optimization process is applied to optimize an objective function of a network performance metric with respect to a number of network tuning parameter variables. The optimization may be based on first or higher order derivatives of the objective function with respect to the selected network parameter variables. The objective function may include, e.g., one or more of a maximization of network coverage, a maximization of network capacity, and a minimization of network resources. Additional network parameters which are not variables in optimization process serve as constraints to the optimization process. Advantageously, the invention substantially improves the process of designing, adjusting and optimizing the performance of wireless networks.
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公开(公告)号：BR0006769A
公开(公告)日：2001-08-14
申请号：BR0006769
申请日：2000-10-26
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , HAMPEL KARL GEORG , MANKIEWICH PAUL MATTHEW , POLAKOS PAUL ANTHONY , HOBBY JOHN D
Abstract: Improved techniques for characterizing, adjusting and optimizing the overall performance of a wireless network. In an illustrative embodiment, the overall network performance for a particular network configuration is characterized by a vector with two components, one representing network coverage and another representing network capacity. Network coverage is defined by the likelihood of service under load, including interference, and may be further weighted by traffic density. Network capacity is defined by an amount of traffic with a given spatial distribution that can be served at a given overall target-blocking rate. The overall network performance may be characterized using a two-dimensional capacity/coverage diagram which plots overall network performance vectors, each including a network capacity component and a network coverage component, for various network configurations. The overall network performance may be improved or optimized with respect to a given subset of network parameters by using an algorithm that proposes potential network configurations and evaluates them with respect to their overall network performance.
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公开(公告)号：DE60036263T2
公开(公告)日：2008-05-29
申请号：DE60036263
申请日：2000-10-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , HAMPEL KARL GEORG , HOBBY JOHN D , POLAKOS PAUL ANTHONY
Abstract: Improved techniques for optimizing performance of a wireless network. In an illustrative embodiment, a derivative-based optimization process is applied to optimize an objective function of a network performance metric with respect to a number of network tuning parameter variables. The optimization may be based on first or higher order derivatives of the objective function with respect to the selected network parameter variables. The objective function may include, e.g., one or more of a maximization of network coverage, a maximization of network capacity, and a minimization of network resources. Additional network parameters which are not variables in optimization process serve as constraints to the optimization process. Advantageously, the invention substantially improves the process of designing, adjusting and optimizing the performance of wireless networks.
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公开(公告)号：DE60035755D1
公开(公告)日：2007-09-13
申请号：DE60035755
申请日：2000-10-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , HAMPEL KARL GEORG , HOBBY JOHN D , MANKIEWICH PAUL MATTHEW , POLAKOS PAUL ANTHONY
Abstract: Improved techniques for characterizing, adjusting and optimizing the overall performance of a wireless network. In an illustrative embodiment, the overall network performance for a particular network configuration is characterized by a vector with two components, one representing network coverage and another representing network capacity. Network coverage is defined by the likelihood of service under load, including interference, and may be further weighted by traffic density. Network capacity is defined by an amount of traffic with a given spatial distribution that can be served at a given overall target-blocking rate. The overall network performance may be characterized using a two-dimensional capacity/coverage diagram which plots overall network performance vectors, each including a network capacity component and a network coverage component, for various network configurations. The overall network performance may be improved or optimized with respect to a given subset of network parameters by using an algorithm that proposes potential network configurations and evaluates them with respect to their overall network performance.
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公开(公告)号：CA2324386A1
公开(公告)日：2001-05-04
申请号：CA2324386
申请日：2000-10-24
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLARKSON KENNETH L , POLAKOS PAUL ANTHONY , HOBBY JOHN D , HAMPEL KARL GEORG
Abstract: Techniques for determination of network parameters in, e.g., a processo r- implemented system for characterizing, adjusting or optimizing the performan ce of a wireless network. In an illustrative embodiment, values of one or more link parameters of the wireless network are interpolated along edges in a mesh of data points derived at least in part from road location data characterizing an area serviced by the wireless network. A measure of network performance, e.g., a coverage measure based on pilot sign al- to- interference ratio, may be generated using the interpolated values. The edge s of the mesh have associated therewith a set of edge weights representative of traffic in the wireless network. The edge weights may be adjusted so as to be in agreement with available network traffic data. Interpolating between the data points of the road-base d mesh permits the network performance measure to be computed as a smooth, differentiable function of the one or more link parameters, thereby simplifying network characterizatio n, adjustment and optimization.
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