Patent application number | Description | Published |
20090052330 | ANOMALY DETECTION METHOD AND SYSTEM AND MAINTENANCE METHOD AND SYSTEM - A network management apparatus in a mobile communication network holds a communication quality index in a normal operation and periodically receives input of a communication quality measurement result from a radio base station control apparatus. When a connection failure count f with respect to a connection request count a of each radio cell is obtained as a measurement result, letting p | 02-26-2009 |
20090167520 | COMMUNICATION NETWORK FAILURE DETECTION SYSTEM, AND COMMUNICATION NETWORK FAILURE DETECTION METHOD AND FAILURE DETECTION PROGRAM - The system for detecting a failure on a communication network according to an objective basis by analyzing an alarm log output by a management server of the communication network and evaluating a degree of abnormality of the communication network tracing back to a more significant factor causing the alarm, calculates an occurrence intensity of the more significant factor | 07-02-2009 |
20090270106 | CONFIGURATION MANAGEMENT METHOD AND CONFIGURATION MANAGEMENT SYSTEM OF WIRELESS ACCESS NETWORK, AND WIRELESS ACCESS NETWORK MANAGEMENT DEVICE - A configuration of a wireless cell contained by a wireless network control station in a wireless access network is optimized to efficiently achieve leveling of a processing load in the wireless network control station. A wireless access network management device inputs input information including position information of a wireless cell, traffic demand of each wireless cell, location registration demand of each wireless cell, handover demand with respect to each adjacent wireless cells of each wireless cell, and internal processing time required by a wireless network control station for traffic processing, location registration processing, and handover processing. Then, a wireless cell group to be controlled by a wireless network control station is selected based on the input information so that processing loads of a plurality of wireless network control station are leveled. | 10-29-2009 |
20100093338 | WIRELESS CELL MONITORING METHOD, ITS DEVICE, AND ITS PROGRAM - In a wireless cell, the potential deterioration in quality is efficiently detected when the indication of abnormalities is weak. Provided are a step of calculating one or more radio qualities for each coverage area of a wireless cell; a step of measuring one or more network statistical qualities for each coverage area of the wireless cell; a step of making a pair of each network statistical quality and one or more radio qualities for each coverage area of each wireless cell; and a step of calculating, based on the pairs of each network statistical quality and one or more radio qualities for the coverage areas of the wireless cells, the correlation between each network statistical quality and one or more radio qualities. | 04-15-2010 |
20100174945 | COMMUNICATION NETWORK FAILURE CAUSE ANALYSIS SYSTEM, FAILURE CAUSE ANALYSIS METHOD, AND FAILURE CAUSE ANALYSIS PROGRAM - A failure cause analysis system for estimating a cause of a failure in a communication network from recorded contents of internal processing of a communication apparatus includes: feature extraction means for extracting a statistical feature of the recorded contents at a time of occurrence of a failure; and failure cause estimation means for estimating a failure cause based on similarity between a statistical feature of the recorded contents that is acquired at a time of occurrence of a past failure with a known failure cause and the statistical feature of the recorded contents that is acquired at the time of occurrence of the failure. The failure cause analysis system of a communication network provided can acquire the correspondence between failure features and failure causes from past failure cases irrespective of the number of cases as to communication network failures that are detected from process logs retained in communication apparatuses, and quantitatively incorporate the range of dispersion of the features into a judgment to estimate the cause of occurrence of a failure. | 07-08-2010 |
20100273493 | RADIO ACCESS NETWORK MANAGEMENT DEVICE, FACILITY PLAN SUPPORT SYSTEM, AND FACILITY PLAN SUPPORT METHOD USED THEREFOR - A radio access network management device capable of estimating the resource utilization ratio of an additionally installed radio base station to predict the date on which the next additional installation is required. The radio access network management device comprises a means for obtaining traffic demand per unit area for existing radio cells around the position at which a radio base station is additionally installed from the coverage of the existing radio cells and the time series of the past communication traffic statistics, a means for estimating the coverage of the radio cells after the additional installation of the radio base station, a means for predicting the traffic demand of the radio cells after the additional installation thereof from the coverage and traffic demand per unit area, and a means for predicting future communication quality from the predicted traffic demand. | 10-28-2010 |
20100284293 | COMMUNICATION NETWORK QUALITY ANALYSIS SYSTEM, QUALITY ANALYSIS DEVICE, QUALITY ANALYSIS METHOD, AND PROGRAM - Provided is a communication network quality analysis technique which can identify a network side communication device, a communication area, or a terminal which causes degradation of quality of the communication network detected by an abnormal communication quality index. The technique analyzes a recording content of a call process performed by the network side communication device and acquires a distribution of quality degradation amounts in respective hierarchies such as a terminal, a network communication device, or a communication area. Thus, the technique estimates a terminal, a network side communication device, or a communication area causing degradation of the communication quality according to a degree of quality degradation degree distribution bias considering the belonging relationship of the terminal, the network side communication device, and the communication area. | 11-11-2010 |
20110014941 | RADIO-RESOURCE MANAGEMENT SYSTEM AND METHOD THEREOF, AND MANAGEMENT APPARATUS, BASE STATION AND TERMINAL TO BE EMPLOYED FOR IT - Terminals and base stations belonging to service areas | 01-20-2011 |
20110021156 | MARGIN DESIGN APPARATUS, MARGIN DESIGN SYSTEM, MARGIN DESIGN METHOD, AND PROGRAM - Provided is a technique of calculating a proper margin according to the area or a radio propagation estimation method in the area design of wireless communication using a radio propagation simulator. From a storage part wherein information relating to positions where deterioration of a communication quality or a radio quality is confirmed and information relating to the radio conditions at the positions are associated with each other, a margin design system extracts positions where the radio conditions are equal, estimates the radio quality at the positions by the radio propagation simulator, and calculates the margin of a radio quality estimated value on the basis of the estimated radio quality. | 01-27-2011 |
20110021238 | RADIO-RESOURCE MANAGEMENT SYSTEM AND METHOD THEREOF, AND MANAGEMENT APPARATUS, BASE STATION AND TERMINAL TO BE EMPLOYED FOR IT - Terminals and base stations belonging to service areas | 01-27-2011 |
20110263244 | QUALITY MONITORING SYSTEM, QUALITY MONITORING APPARATUS, AND QUALITY MONITORING METHOD IN WIRELESS COMMUNICATION NETWORK - A mobile terminal includes a measuring unit that measures at least the moving speed of the self terminal and communication quality of wireless communication, and a communication unit that transmits terminal information including moving speed information and communication quality information. A quality monitoring apparatus ( | 10-27-2011 |
20120083281 | NETWORK MANAGEMENT SYSTEM, WIRELESS COVERAGE CONTROL METHOD AND WIRELESS COVERAGE CONTROL PROGRAM - A network management system includes: wireless link quality information collection means for collecting, from a mobile terminal that is connected to the mobile communication network, wireless link quality information that indicates wireless link quality measured by the mobile terminal, the wireless link quality information containing information about quality of wireless links between the mobile terminal and two or more wireless cells; coverage evaluation means for evaluating the wireless cell coverage on the basis of wireless link quality information calculated for each of the wireless cells using the wireless link quality information collected by the wireless link quality information collection means; and wireless parameter calculation means for calculating an amount of change in changing for a wireless parameter of a wireless base station on the basis of the result of the evaluation provided by the coverage evaluation means. | 04-05-2012 |
20120201159 | RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, RADIO RESOURCE CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A base station includes a radio communication unit, a resource adjustment unit, a resource division unit and a detection unit. The resource adjustment unit determines radio resources to be allocated to a downlink communication from a radio resource region shared with another base station. The resource division unit limits, to a first radio resource segment which is a part of the radio resource region, radio resources in response to estimating that communication quality of the downlink communication using the limited first radio resource segment is improved over the communication quality of the first downlink communication when using the entire range of the radio resource region that is shared with the other base station. The detection unit detects execution of resource division by the other base station for limiting radio resources used for another downlink communication between the other base station and a mobile station to a second radio resource segment. | 08-09-2012 |
20130102321 | RADIO-RESOURCE MANAGEMENT SYSTEM AND METHOD THEREOF, AND MANAGEMENT APPARATUS, BASE STATION AND TERMINAL TO BE EMPLOYED FOR IT - Terminals and base stations belonging to service areas of plural radio operators periodically measure a radio-link quality and an availability ratio of a radio link to notify them to a radio-resource management server. The server alters a frequency of the base station, and a transmitted-power quantity of the base station and the terminal based on these measured results to improve the radio-link quality, and reduces interference with a neighboring radio system. When a load is concentrated on a network of a specific radio operator, handover instruction is given to the terminal from the server to realize a load distribution. When the server detects excessive radio interference between the radio operators, it notifies occurrence of a fault, an interference quantity, a quantity of the transmitted power that the base station should attenuate, and the frequency that the base station should alter to the radio operator that becomes an interference source. | 04-25-2013 |
20130137473 | WIRELESS COMMUNICATION SYSTEM, NEIGHBOR CELL LIST OPTIMIZATION SYSTEM, BASE STATION, AND NEIGHBOR CELL LIST UPDATE METHOD - The present invention is applicable to a wireless communication system provided with mobile terminals and base stations that manage cells to which the mobile terminals are connected. The wireless communication system of the present invention has a new cell detection unit that detects, from among neighbor cells which are adjacent to the cells to which the mobile terminals are connected, new cells that have newly started or whose operation has resumed or whose geographical range has changed, and a neighbor cell list generation unit which preferentially registers new cells that have been detected by the new cell detection unit in neighbor cell lists in which are registered neighbor cells that are candidates for handover destinations of the mobile terminals. | 05-30-2013 |
20130157680 | RADIO COMMUNICATION SYSTEM, RADIO RESOURCE DETERMINATION METHOD THEREFOR, COMMUNICATION MANAGEMENT DEVICE, AND CONTROL METHOD AND CONTROL PROGRAM FOR COMMUNICATION MANAGEMENT DEVICE - In order to effectively determine an optimized radio resource, a radio communication system ( | 06-20-2013 |
20130273919 | HANDOVER CONTROL METHOD, CONTROL APPARATUS, ADJUSTMENT APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A method of controlling handover of a mobile station ( | 10-17-2013 |
20130316709 | NEIGHBOR LIST OPTIMIZATION APPARATUS, NEIGHBOR LIST GENERATION APPARATUS, BASE STATION APPARATUS, NEIGHBOR LIST OPTIMIZATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A neighbor list optimization unit ( | 11-28-2013 |
20140128123 | RADIO-RESOURCE MANAGEMENT SYSTEM AND METHOD THEREOF, AND MANAGEMENT APPARATUS, BASE STATION AND TERMINAL TO BE EMPLOYED FOR IT - Terminals and base stations belonging to service areas of plural radio operators periodically measure a radio-link quality and an availability ratio of a radio link and provide notification to a radio-resource management server. The server alters a frequency of the base station, and a transmitted-power quantity of the base station and the terminal based on these measured results to improve the radio-link quality, and reduce interference with a neighboring radio system. | 05-08-2014 |
20140256335 | Radio Parameter Control Apparatus, Radio Base Station, Radio Parameter Control Method, and Non-Transitory Computer Readable Medium - A radio parameter control apparatus decides a radio parameter from which a throughput of UE is improved. A radio parameter control apparatus includes: a radio quality prediction unit ( | 09-11-2014 |