WO2004112414A1 - 無線ネットワーク変更支援システム及び無線ネットワーク変更支援方法 - Google Patents
無線ネットワーク変更支援システム及び無線ネットワーク変更支援方法 Download PDFInfo
- Publication number
- WO2004112414A1 WO2004112414A1 PCT/JP2004/008137 JP2004008137W WO2004112414A1 WO 2004112414 A1 WO2004112414 A1 WO 2004112414A1 JP 2004008137 W JP2004008137 W JP 2004008137W WO 2004112414 A1 WO2004112414 A1 WO 2004112414A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wireless
- change
- data
- wireless network
- base station
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/02—Marketing; Price estimation or determination; Fundraising
- G06Q30/0283—Price estimation or determination
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/22—Traffic simulation tools or models
Definitions
- the present invention relates to a wireless network change support system and a wireless network change support method.
- the present invention relates to a wireless network change support system and a wireless network change support method, and more particularly, to a wireless network change support system and a wireless network change support method for proposing a more appropriate wireless network.
- the wireless network After starting operation of a wireless network having a plurality of wireless base stations that perform wireless communication with a user terminal, the wireless network is expanded by "addition of wireless base stations" or “change of wireless parameters of wireless base stations". In some cases, it may be possible to increase the coverage area of a network or increase the line capacity of a wireless network.
- FIG. 1 is a block diagram showing a configuration of a conventional wireless network.
- the wireless network shown in FIG. 1 includes a wireless base station 101, a wireless base station 102, a network 103, and a wireless network management unit 104.
- the wireless network management unit 104 is managed by a wireless network operator.
- the wireless base station 101 and the wireless base station 102 are managed by the wireless network management unit 104 via the network 103.
- a cover area and a channel capacity are set as wireless parameters, respectively.
- the coverage area as a wireless network is an area covered by each wireless base station of the wireless network.
- the radio base station 101 has a coverage area 101a and has a line capacity capable of accommodating three user terminals.
- the radio base station 102 has a cover area 102a and has a line capacity capable of accommodating three user terminals.
- Radio base station 101 accommodates user terminals 201, 202 and 203.
- User terminals 206, 207 and 208 reside within the coverage area 102a.
- Radio base station 102 houses user terminals 206, 207 and 208.
- Each user terminal is exemplified by a portable information terminal such as a mobile phone or a PDA, and a notebook personal computer. You.
- the user terminals 204 and 205 are not accommodated in the radio base station 101 because the line capacity of the radio base station 101 existing in the coverage area 101a of the radio base station 101 is not full.
- the user terminals 209, 210, and 211 are not included in the service area 101a of the wireless base station 101 or the service area 102a of the wireless base station 102, and thus are not included in the wireless network.
- FIG. 2 is a block diagram showing a configuration of another conventional wireless network.
- FIG. 2 shows an example in which the wireless base station 105 is added from the state of FIG. 1 to expand the coverage area of the wireless network.
- the same components as those in FIG. 1 are denoted by the same reference numerals.
- the added wireless base station 105 has a cover area 105a and has a line capacity capable of accommodating three user terminals.
- the user terminals 209, 210 and 211 can be newly accommodated in the wireless network by expanding the power bar area by adding the wireless base station 105.
- FIG. 3 is a block diagram showing a configuration of still another conventional wireless network.
- FIG. 3 shows an example in which the wireless capacity of the wireless base station 101 is increased by changing the wireless parameters of the wireless base station 101 from the state of FIG.
- the same components as those in FIG. 1 are denoted by the same reference numerals.
- the wireless base station 101 has a line capacity capable of accommodating five user terminals by changing wireless parameters. As a result, the user terminals 204 and 205 that could not be accommodated in the radio base station 101 in the state shown in FIG. 1 can be newly accommodated.
- FIG. 4 is a block diagram showing a configuration of another conventional wireless network.
- FIG. 4 shows an example in which the wireless parameters of the wireless base station 101 are changed from the state shown in FIG. 1 to increase the power bar area 101a of the wireless base station 101 and increase the line capacity of the wireless base station 101. Is shown.
- the same components as those in FIG. 1 are denoted by the same reference numerals.
- the radio base station 101 has an expanded coverage area 101a due to a change in radio parameters, and has a line capacity capable of accommodating seven user terminals. As a result, the user terminals 204, 205, 209 and 210 can be newly accommodated.
- a wireless network operator earns revenue by receiving from each user a usage fee corresponding to the traffic volume transmitted by a user terminal accommodated in the wireless network.
- the operating costs of wireless networks are disbursed, and the difference between revenue and expenditures benefits wireless network operators.
- Japanese Patent Application Laid-Open Nos. 8-317458 and 2001-285923 disclose a technique in which a wireless network operator determines an arrangement pattern of wireless base stations in consideration of own interests. .
- Japanese Patent Application Laid-Open No. 8-317458 discloses a method for determining an installation pattern of a PHS base station.
- a PHS base station installation pattern first, a plurality of different PHS base station installation patterns are prepared for a predetermined service planning area. Next, a simulation of the electric field strength distribution is performed for each installation pattern. Next, based on the simulation results, the ratio of the area of the callable area to the area of the service planning area is calculated as a quality evaluation value for each installation pattern. After that, the cost evaluation value is calculated for each installation pattern. Then, based on the quality evaluation value and the cost evaluation value for each installation pattern, the installation pattern for the service plan area is determined from all the installation patterns.
- Japanese Patent Laid-Open Publication No. 2001-285923 discloses a technique of a base station arrangement pattern determination method.
- this method of determining a base station arrangement pattern first, a map including information such as a shape of a building which influences when a radio wave propagates is prepared for a target area of the base station arrangement. Next, on the prepared map, locations where base stations can be installed are detected, and each is designated as a base station candidate point where base stations can be installed. Next, in order to specify the communicable area in the target area where the base station is located, an area evaluation point that is discretely given as a reception capability evaluation position is specified.
- the received power of all area evaluation points when a base station is installed at the base station candidate point is determined. Based on that, for each base station candidate point, Guides the communicable area when a local office is built. However, the communicable area is given as a set of area evaluation points that are determined to be communicable positions when received power equal to or higher than a predetermined threshold value is obtained. After that, a gene information expression format corresponding to the combination of base station candidate points related to the installation of the base station is selected. At the same time, an evaluation function according to the purpose related to the base station arrangement is set. Then, a genetic algorithm is applied to search for genetic information that maximizes the fitness given by the evaluation function, and an optimal base station arrangement pattern is determined.
- These techniques provide an arrangement pattern of a wireless base station and an arrangement cost thereof as information for determining an arrangement pattern of the wireless base station.
- the arrangement pattern is determined based on a simulation.
- the placement cost is a cost required to realize the placement pattern. However, it only provides information on wireless network operators' expenditures as information on the benefits of wireless network operators.
- Japanese Patent Application Laid-Open No. H8-322079 discloses a technique of a method of determining an installation position of an additional base station in a PHS.
- the method of determining the installation position of an additional base station in the PHS is to determine the installation position of the additional base station when adding a PHS base station in a service area where one or more PHS base stations are installed.
- Method. First, electric field strengths are measured at a plurality of points in the service area. Next, the parameters of the mathematical model are adjusted so that the electric field intensity distribution of the service area obtained by the simulation using the mathematical model matches as much as possible the electric field intensity distribution based on the electric field intensity measurement result.
- the mathematical model after parameter adjustment is given parameter values related to the extension base station, including the parameter values related to the installation position of the extension base station, and it is assumed that the extension base station has been installed.
- the electric field intensity distribution in the service area is simulated. After that, the simulation results are evaluated. Then, after changing the parameter values for the additional base station and repeating the above steps, a suitable parameter value for the additional base station is determined based on the evaluation result for each parameter value for the additional base station.
- Japanese Patent Application Laid-Open No. Hei 6-188817 discloses a technique of a radio base station arrangement method.
- the radio base stations are arranged by making the interval between the microcell base stations inversely proportional to the bias of the traffic volume so that the traffic volume covered by each cell is substantially uniform. It is an object of the present invention to make the communication quality of a reverse link constant in a code division multiple access mobile communication system.
- This service area test system is a service area test system that measures, optimizes, and manages the service area of a newly established base station.
- An area measuring device, a mobile communication system, a network, and a server are provided.
- the area measuring device calculates the service area based on the simulation result, moves within the service area, and performs various measurements and optimization of the base station.
- the data processing base station communicates with the area measurement device for data processing.
- the mobile communication system includes the newly established base station and a plurality of control stations that control these base stations.
- the network is connected to the mobile communication system.
- the server is connected to the network, analyzes the measurement data transmitted from the area measuring device, and returns a processing result and the like to the area measuring device.
- the area measurement device adjusts parameters and antenna tilt of the newly installed base station by remote control based on processing results from the server and the like.
- Patent Document 1 JP-A-8-317458
- Patent Document 2 Japanese Patent Application Laid-Open No. 2001-285923
- Patent Document 3 JP-A-8-322079
- Patent Document 4 JP-A-6-188817
- Patent Document 5 JP-A-2003-8498
- An object of the present invention is to provide a wireless network change support system and a wireless network change support method for proposing a more appropriate wireless network.
- Another object of the present invention is to provide a wireless network change support system and a wireless network change support method for proposing a wireless network change that increases the profit margin in a wireless network.
- a wireless network change support system of the present invention includes a change setting unit, an income prediction unit, and an expenditure calculation unit.
- the change setting unit sets change data for changing the setting data based on state data indicating a state of a wireless network having a plurality of wireless base stations and setting data indicating a setting of the wireless network.
- the income forecasting unit calculates an estimated income in the wireless network when the setting data is changed, based on the status data, the setting data, and the change data.
- the expenditure calculation unit calculates, based on the change data, a forecast expenditure required for making the change indicated by the change data to the wireless network.
- the above-described wireless network change support system further includes a balance calculation unit that calculates a profit of the wireless network when setting data is changed based on the change data, based on the predicted income and the predicted expenditure.
- the revenue prediction unit includes a traffic prediction unit and a revenue calculation unit.
- the traffic prediction unit calculates predicted traffic data indicating a predicted traffic amount in the wireless network when the setting data is changed based on the change data, based on the state data, the setting data, and the changed data.
- the revenue calculation unit calculates the predicted revenue based on the predicted traffic data.
- the change setting unit sets, based on the status data and the setting data, base station extension for setting extension position data indicating an extension position of a wireless base station to be added in the wireless network. It has a unit.
- the change data includes extension position data.
- the system further includes a first storage unit that stores setting data, and a second storage unit that stores state data.
- the setting data includes cover area data indicating an area covered by each sector of the wireless base station of the wireless network before the wireless base station is added.
- the status data includes traffic data indicating the status of traffic of each sector of the wireless base station of the wireless network before the wireless base station is added.
- the base station extension unit includes an extension point search unit that searches for an extension position based on the cover area data stored in the first storage unit and the traffic data stored in the second storage unit. The extension position data is set based on the search result of the extension point search unit.
- the extension point search unit removes the cover area, has a large area in the area, and has a large traffic volume in surrounding sectors, an area, and a wireless base.
- a search is made for at least one of the unaccommodated sectors with a large traffic volume as an extension position in each sector of the station.
- the setting data includes wireless parameters indicating the communication performance of the wireless network.
- the change setting unit further includes a wireless parameter changing unit that sets wireless parameter change data indicating a change in the wireless parameter based on the status data and the setting data.
- the change data includes wireless parameter change data.
- the setting data includes wireless parameters indicating the communication performance of the wireless network.
- the change setting unit includes a wireless parameter changing unit that sets wireless parameter change data indicating a change in the wireless parameter.
- the above-described wireless network change support system further includes a third storage unit that stores setting data, and a fourth storage unit that stores state data.
- the setting data depends on each sector of the wireless base station of the wireless network before changing the wireless parameters. Includes cover area data indicating the cover area.
- the status data includes traffic data indicating the status of traffic of each sector of the wireless base station of the wireless network before changing the wireless parameters.
- the wireless parameter change unit is configured to execute a change target search unit that searches for a wireless base station for which wireless parameters are to be changed based on the cover area data stored in the third storage unit and the traffic data stored in the fourth storage unit. Including. Based on the search result of the search object to be changed, a wireless base station that changes wireless parameters is set.
- the above-described wireless network change support system further includes a third storage unit that stores setting data, and a fourth storage unit that stores state data.
- the setting data includes cover area data indicating a cover area by each sector of the wireless base station of the wireless network before changing the wireless parameters.
- the status data includes traffic data indicating the status of traffic of each sector of the wireless base station of the wireless network before changing the wireless parameters.
- the wireless parameter change unit is configured to execute a change target search unit that searches for a wireless base station for which wireless parameters are to be changed based on the cover area data stored in the third storage unit and the traffic data stored in the fourth storage unit. Including. Based on the search result of the search object to be changed, a wireless base station that changes wireless parameters is set.
- the change target search unit removes the uncovered area in each of the wireless base stations in the wireless base station surrounding the area having a large area and a large traffic volume in the surrounding sector except for the cover area. At least one of the radio base station having a sector with a large traffic volume and the radio base station at the extension position indicated by the extension position data is set as the radio base station for changing the radio parameters.
- a wireless network change support method of the present invention is a wireless network change support method for performing change of a wireless network having a plurality of wireless base stations using a wireless network change support system. .
- Wireless network change support A step of calculating, based on the change data, a predicted expenditure required to apply the change indicated by the change data to the wireless network.
- the balance calculation unit of the wireless network change support system changes the setting data based on the change data based on the estimated income and the estimated expenditure based on the change data.
- the method further comprises calculating a benefit of the network.
- the step (b) includes the step of: (bl) the case where the setting data is changed based on the change data based on the state data, the setting data, and the change data. Calculating the predicted traffic data indicating the predicted traffic volume in the wireless network of (b), and (b2) calculating the predicted revenue based on the predicted traffic data by the revenue prediction unit.
- the step (a) comprises: (al) a change setting unit, based on the status data and the setting data, indicating an addition position of a wireless base station to be added in the wireless network.
- Setting position data indicating an addition position of a wireless base station to be added in the wireless network.
- the change data includes extension position data.
- the (al) step includes: (al l) a step in which the change setting unit searches for an expansion position based on the setting data and the state data; Setting a setting position of the extension position data based on the search result.
- the setting data includes cover area data indicating a coverage area of each sector of the wireless base station of the wireless network before the wireless base station is added.
- the above-mentioned status data includes traffic data indicating the status of traffic of each sector of the wireless base station of the wireless network before the wireless base station is added.
- the (all) step includes: (all) a change setting unit in which the area is large in the area excluding the coverage area and the traffic volume of the surrounding sectors is small.
- the method includes a step of searching at least one of a large area and a sector having a large traffic volume that is not accommodated in each sector of the wireless base station as an extension position.
- the setting data includes a wireless parameter indicating the communication performance of the wireless network.
- Step is (a2)
- Change setting section is The method further includes the step of setting wireless parameter change data indicating a change in the wireless parameter based on the data and the setting data.
- the change data includes wireless parameter change data.
- the setting data includes wireless parameters indicating the communication performance of the wireless network.
- the step (a) further includes a step (a2) of setting, by the change setting unit, wireless parameter change data indicating a change in the wireless parameter based on the state data and the setting data.
- the change data includes wireless parameter change data.
- the step (a2) includes: (a21) a step in which the change setting unit searches for a wireless base station for which a wireless parameter is to be changed based on the setting data and the state data. (A22) the change setting unit setting a wireless base station for changing the wireless parameter based on the search result of the change target search unit.
- the setting data includes cover area data indicating a cover area by each sector of the wireless base station of the wireless network before changing the wireless parameters.
- the status data includes traffic data indicating the status of traffic of each sector of the wireless base station of the wireless network before changing the wireless parameters.
- the step (a2) includes: (a21) a step in which the change setting unit searches for a wireless base station whose wireless parameter is to be changed based on the setting data and the state data. (A22) the change setting unit setting a wireless base station for changing the wireless parameter based on the search result of the change target search unit.
- the setting data includes cover area data indicating a cover area by each sector of the wireless base station of the wireless network before changing the wireless parameters.
- the status data includes traffic data indicating the status of traffic of each sector of the wireless base station of the wireless network before changing the wireless parameters.
- the (a21) step is a step (a211) in which the change setting unit determines that each of the radio base stations in the area surrounding the area having a large area and a large amount of traffic in surrounding sectors in the area excluding the cover area A radio base station that changes the radio parameters of at least one of the radio base stations that have an unaccommodated large traffic volume among the sectors and the radio base station at the expansion position indicated by the expansion position data Setting as a local station.
- a computer program product of the present invention when used on a computer, executes a program code for executing all the steps of the wireless network change support method described in any one of the above. Having means.
- a computer program product of the present invention has the program code means described in the above item, stored in a storage device readable by a computer.
- FIG. 5 is a block diagram showing a configuration of a wireless network optimization support system as an embodiment of the wireless network change support system of the present invention.
- the wireless network optimization support system according to the present embodiment can provide a change plan that improves the profit of an existing wireless network, and can improve its efficiency.
- the wireless network optimization support system 1 includes a change setting unit 11, an income prediction unit 12, an expenditure calculation unit 13, a balance calculation unit 14, a first storage unit and a third storage unit. And a wireless parameter storage unit 15.
- the wireless network optimization support system 1 is an information processing device exemplified by a workstation.
- the change setting unit 11, the income prediction unit 12, the expenditure calculation unit 13, and the balance calculation unit 14 are programs
- the wireless parameter storage unit 15 is a program and data.
- Each of the change setting unit 11, the income prediction unit 12, the expenditure calculation unit 13, and the balance calculation unit 14 is an information processing device exemplified by a work station or a personal computer, and the wireless parameter storage unit 15 is a database.
- the wireless network optimization support system 1 can be a system combining a plurality of information processing devices and a database.
- the wireless network optimization support system 1 is connected to a wireless network management unit 4 of a wireless network.
- the wireless network includes a wireless base station 20 (—11n: n is a natural number), a network 3, and a wireless network management unit 4.
- the wireless network management unit 4 is managed by a wireless network operator.
- the wireless base stations 20-1 to 20-n are managed by the wireless network management unit 4 via the network 3.
- the radio base station 20—11—20_n performs radio communication with the user terminal, and a coverage area and a line capacity are set as radio parameters.
- the coverage area is an area covered by each wireless base station 20 included in the wireless network. Since the wireless network management unit 4, the network 3, and the wireless base stations 20-1-1 20-n are the same as the wireless network management unit 104, the network 103, and the wireless base stations 101 and 102 of the related art, the description thereof will be omitted. Is omitted.
- the change setting unit 11 sets change data indicating a change in the wireless network.
- the change setting unit 11 includes a base station extension unit 11a and a wireless parameter changing unit l ib.
- the base station extension unit 11a includes an extension point search unit llal.
- the wireless parameter change unit 1 lb includes a change target search unit l lbl.
- the income prediction unit 12 calculates a predicted income in the wireless network in which the change indicated by the change data set by the change setting unit 11 has been performed.
- the income prediction unit 12 includes a simulator 12a as a traffic prediction unit, an income calculation unit 12b, and a traffic data storage unit 12c as a second storage unit and a fourth storage unit.
- the revenue calculator 12b includes a current traffic revenue calculator 12bl and a predicted traffic revenue calculator 12b2.
- the expenditure calculating unit 13 calculates expenditures required to apply the change indicated by the change data set by the change setting unit 11 to the wireless network.
- the expenditure calculation unit 13 includes a radio parameter conversion cost calculation unit 13a and a radio base station extension cost calculation unit 13b.
- the balance calculation unit 14 calculates the profit of the wireless network after the change based on the predicted income calculated by the income prediction unit 12 and the expenditure calculated by the expenditure calculation unit 13.
- the wireless parameter storage unit 15 receives the wireless parameter 31 in the wireless network as an input and stores the wireless parameter 31.
- the wireless parameter storage unit 15 supplies the stored wireless parameters of the wireless network to the base station extension unit lla, the wireless parameter change unit lib, and the simulator 12a. Its wireless parameters determine the performance of the wireless network Information.
- the wireless parameters include, for example, data indicating the installation location of the wireless base station and data of various parameters.
- the data indicating the location of the wireless base station is, for example, latitude, longitude and altitude.
- the various parameters include, for example, a parameter indicating the tilt angle of the antenna of each radio base station, a parameter indicating the transmission power of each radio base station, a parameter of the handover threshold value of each radio base station, and each base determined by the radio parameters. This is exemplified by the cover area data indicating the cover area by the sector of the base station.
- Traffic data storage unit 12c receives traffic data (state data) 32 indicating the state of traffic in the wireless network as input, and stores the traffic data.
- Traffic data is information indicating the usage status of users accommodated in the wireless network.
- the traffic data includes a traffic volume, a line utilization rate, and a blocking rate of a sector of each wireless base station included in the wireless network.
- traffic data storage unit 12c receives traffic data indicating the state of currently accommodated traffic obtained after the wireless network is serviced, and stores the traffic data.
- the traffic data storage unit 12c receives predicted traffic data supplied from the simulator 12a and stores the predicted traffic data.
- the traffic data storage unit 12c supplies the current traffic data to the base station extension unit 11a, the wireless parameter change unit lib, the simulator 12a, and the current traffic revenue calculation unit 12bl.
- the traffic data storage unit 12c supplies the predicted traffic data supplied from the simulator 12a to the predicted traffic revenue calculation unit 12b2.
- the base station extension unit 11a sets extension position data indicating the extension position of the wireless base station to the wireless network as change data. Specifically, the base station extension unit 11a inputs the current wireless network parameters stored in the wireless parameter storage unit 15 and the current traffic data stored in the traffic data storage unit 12c. Based on, the extension point of the wireless base station is set to itself (the base station extension section 11a). Then, the information of the set extension point of the wireless base station is output as change data.
- the base station extension unit 11a may set the extension point by inputting the extension point of the wireless base station determined by the judgment of the person.
- the base station extension unit 11a may set the extension point searched by the extension point search unit llal as change data.
- the base station extension unit 11a supplies information on the extension point of the wireless base station to the wireless parameter change unit 11b, the simulator 12a, the wireless base station extension cost calculation unit 13b, and the balance calculation unit 14. I do.
- the extension point search unit llal is based on the wireless parameters of the current wireless network stored in the wireless parameter storage unit 15 and the current traffic data stored in the traffic data storage unit 12c. Search for an extension point for a wireless base station. The search method will be described later.
- the extension point search unit l l al sets a point included in a predetermined area in the searched area as an extension point of the wireless base station.
- the points included in the predetermined area may be determined by human judgment, or may be determined by base station extension unit 11a.
- the extension point searching unit lal displays the searched area on the display unit 16 and selects a point included in the predetermined area from the display. May be selected.
- the points included in the determined predetermined area are set in the base station extension unit 11a.
- the wireless parameter changing unit l ib outputs the current wireless parameters stored in the wireless parameter storage unit 15, the current traffic data stored in the traffic data storage unit 12c, and the base station extension unit 11a.
- the wireless parameter of the wireless base station is changed to a predetermined value by inputting the information of the extension point of the wireless base station to be input. Then, the information of the changed wireless parameter is output as changed data.
- the predetermined value is determined by human judgment based on the current wireless parameters, the current traffic data, and the information of the wireless base station extension point output from the base station extension unit 11a. You may.
- the predetermined value may be determined by a person's judgment with respect to a wireless parameter change target base station searched for by a change target search unit l lbl described below.
- the radio parameter change unit l ib may determine the parameter change target base station.
- the wireless parameter changing unit l ib supplies the changed wireless parameters to the simulator 12a, the wireless parameter changing cost calculating unit 13a, and the balance calculating unit 14.
- the change target search unit l lbl searches for a wireless base station whose wireless parameters are to be changed based on the current wireless parameters, the current traffic data, and the output of the base station extension unit 11a. The search method will be described later.
- the change target search unit l lbl sets the selected one of the sectors of the searched wireless base station in the wireless parameter change unit 1 lb as a wireless parameter change target base station, that is, change data.
- the simulator 12a includes the radio parameters of the radio network stored in the radio parameter storage unit 15, the traffic data stored in the traffic data storage unit 12c, and the radio base station output by the base station extension unit 11a.
- the operation of the wireless network is simulated using the extension point and the changed wireless parameters output by the wireless parameter changing unit 11b as inputs.
- the simulator 12a is not only required to obtain the coverage area and the line capacity of the wireless network, but also obtains the estimated traffic amount, the expected line utilization rate, and the expected line rate in the wireless network to which the change indicated by the change data set by the change setting unit 11 has been applied. It calculates the predicted traffic data composed of the call blocking rate and outputs the calculated predicted traffic data to the traffic data storage unit 12c.
- the traffic amount of the expanded cover area is reduced by the area around the expanded cover area. It is calculated as the average value of the existing traffic volume.
- the change data indicates a change that increases the line capacity of the wireless base station
- the amount of traffic that increases with the increasing line capacity is a value obtained by multiplying the increasing line capacity by a predetermined value. .
- the simulator 12a outputs the wireless parameters of the wireless network used for the simulation (including the coverage area data of the wireless network determined by the wireless parameters) to the wireless parameter storage unit 15.
- the current traffic income calculation unit 12bl receives the current traffic data from the traffic data storage unit 12c and calculates the current traffic amount indicated by the current traffic data. Thus, the obtained income is calculated, and the calculation result is output to the balance calculation unit 14. For example, it is assumed that the current traffic revenue calculator 12bl calculates the revenue that can be obtained in one year.
- the predicted traffic calculation unit 12b2 receives the predicted traffic data stored in the traffic data storage unit 12c as input, calculates the predicted revenue obtained by the predicted traffic amount indicated by the predicted traffic data, and calculates the calculation result. Is output to the balance calculation unit 14. For example, the predicted traffic calculation unit 12b2 calculates the predicted revenue to be obtained in one year.
- the wireless parameter change cost calculation unit 13a receives the information of the changed wireless parameter output from the wireless parameter change unit 1lb as an input, and calculates various costs required to change the wireless parameter based on the input. Calculate and output the calculation result to the balance calculation unit 14.
- the wireless parameter change cost calculation unit 13a includes a memory in which the contents of the parameter change and the cost associated with the parameter change are stored in association with each other, and this memory is used to change the wireless parameter. Calculate various expenses.
- the wireless parameter change cost calculation unit 13a calculates the expenditure per year based on the total cost and the expected usage period.
- the radio base station extension cost calculation unit 13b receives information on the location of the radio base station to be added, calculates the cost required to add the radio base station to the location, and calculates the balance of the cost. Output to section 14.
- the radio base station extension cost calculation unit 13b includes a memory that stores an extension point of the radio base station and a cost required to extend the radio base station at the extension point in association with each other, This memory is used to calculate the cost required to add a wireless base station to the wireless base station extension point.
- the wireless base station expansion cost calculation unit 13b calculates the expenditure per year based on the total cost and the expected usage period.
- the balance calculator 14 calculates the difference between the current traffic income and the predicted traffic income, Find "increased income” due to increased accommodation traffic.
- the income and expenditure calculation unit 14 obtains the “expansion expenditure” due to the expansion of the radio base station and the change of the radio parameter by summing the expenditure of the radio base station expansion cost and the expenditure of the radio parameter change cost.
- the income and expenditure calculation unit 14 obtains the “expenditure” after the addition of the wireless base stations and the change in the wireless parameters by adding the increased expenditure due to the addition of the wireless base stations and the change in the wireless parameters to the expenditure that has been generated so far. . It is assumed that the expenditure that has occurred so far is stored in the income and expenditure calculation unit 14.
- the income and expenditure calculation unit 14 calculates “profit” by subtracting “expenditure” from the obtained “income”, and obtains “profit rate” by dividing profit by expenditure.
- the income and expenditure calculation unit 14 outputs the profit ratio, profit, income, increased income, expenditure, increased expenditure, the extension point of the wireless base station, and the changed wireless parameter to the outside (the display unit 16 in this embodiment).
- FIG. 6 is a flowchart for explaining the operation (wireless network change support method) of the wireless network optimization support system as an embodiment of the wireless network change support system of the present invention.
- the wireless parameter storage unit 15 stores wireless parameters 31 in the wireless network before the change from the wireless network management unit 4.
- the traffic data storage unit 12c stores the traffic data 32 of the wireless network before the change from the wireless network management unit 4 (step S01).
- the extension point searching unit lal obtains an extension point of the wireless base station based on the current wireless parameters and the current traffic data (step S02).
- step S02 will be described with reference to FIG.
- FIG. 7 is a flowchart showing details of step S02.
- the base station sector Select (search for) a location that is not covered by the above (low power bar area of wireless network). Then, among the selected (searched) locations, the area is large and the traffic of the sector of each wireless base station around the location is increased. An area with a large lock amount is selected (searched) (first search: step S21).
- the extension point search unit lal based on the line utilization rate and the call blocking rate included in the current traffic data stored in the traffic data storage unit 12c, selects the sector from the sector of each wireless base station. Select (search) the area that cannot be accommodated by the above, the traffic volume is high, and the sector coverage area (second search: step S22).
- extension point search unit l lal may perform only one of the first search and the second search.
- Fig. 8 is a diagram for explaining the first search and the second search performed by the extension point search unit lal. Specifically, it shows an example of a cellular system showing traffic data.
- each of radio base station 20a, radio base station 20b, and radio base station 20c has a coverage area of three sectors. Specifically, the base station 20a has a coverage area of sector a, sector b, and sector c, and the base station 20b has a coverage area of sector d, sector e, and sector f. Station 20c has a coverage area of sector g, sector h, and sector i. Areas indicated by diagonal lines in FIG. 8 (powerless bar area A, powerless bar area B, and powerless bar area C) are areas of the wireless system in which the reception levels from all sectors are below a predetermined value (powerless bar area). ).
- the extension point search unit l lal determines that the area of the non-powered bar area A is the widest among the non-powered bar areas A-C, and that the wireless base station Since it is large, the weak bar area A is selected (step S21).
- the determination of “the traffic amount is large” is a determination process that the traffic amount is equal to or more than a predetermined value. For example, the traffic volume is 600 calls or more.
- the extension point search unit l lal determines that the sector b that cannot be accommodated and has a large traffic volume among the sectors of each wireless base station is sector b. Select one area (step S22).
- the determination of “unaccommodable, traffic volume is large” is performed by, for example, a determination process that the volume cannot be accommodated and the traffic volume is larger than a predetermined value.
- a predetermined value for example, 80%
- the judgment is made that the line utilization is equal to or more than a predetermined value (for example, 80%).
- a determination process that the call loss rate is equal to or more than a predetermined value (for example, 15%) is performed.
- extension point search unit lal sets a point included in a predetermined area in the selected area as an extension point of the radio base station, that is, as change data in base station extension unit 11a. I do.
- the point (predetermined point) may be determined by human judgment, or may be determined by the base station extension unit 1 la (step S03).
- the base station extension unit 11a determines a predetermined point from the area selected by the extension point search unit lal. If the selected area includes a triangular circumcenter (points equidistant to any of the three vertices) that is closest to the selected area and has three radio base stations as vertices, the circumcenter is defined as a predetermined point And If not included, the point of the selected area closest to the circumcenter is set as the predetermined point.
- the change target search unit l lbl searches for a wireless base station for which wireless parameters are to be changed based on the current wireless parameters and the current traffic data (step S04).
- step S04 will be described with reference to FIG.
- FIG. 9 is a flowchart showing details of step S04.
- the change target search unit l lbl performs the same processing as the first processing (step S21) performed by the extension point search unit l lal (step S41).
- a wireless base station located around the area searched and selected by the first processing is selected (step S42).
- the change target searching unit l lbl selects a sector of the wireless base station around the searched and selected area.
- the change target searching unit l lbl performs the same processing as the second processing (step S22) performed by the extension point searching unit l lal (step S43).
- the wireless base station that is searched by the second processing and covers the selected area is selected (step S44).
- the change target search unit l lbl selects a sector of the wireless base station around the searched and selected area.
- step S03 information on the location of the wireless base station extension (step S03) is transmitted from the base station extension unit 11a. If it has been entered, the base station at the extension point is selected (step S45). Specifically, the change target search unit l lbl selects all sectors of the base station at the extension point.
- the area selected by the same processing as the first processing performed by the extension point search unit 11 al is the weak bar area A (step S41). Therefore, the change target search unit l lbl first selects sectors b, c, f, and g around the inactive bar area A (step S42).
- the second sector selected by the change target search unit l lbl is the sector b selected by the same process as the second process performed by the extension point search unit l lal.
- the third sector selected by the change target search unit l lbl is all the sectors of the wireless base station at the input expansion point when the information of the expansion point of the wireless base station is input from the base station expansion unit 11a. .
- the change target search unit l lbl determines whether the first (step S42), the second (step S44), and the third (step S44) have been selected.
- the radio base station specifically, the sector of the radio base station
- the selected radio parameter change target base station specifically, the sector of the radio parameter change target base station. That is, the change target search unit 1 lbl sets any of the sectors of the selected wireless base station in the wireless parameter change unit 1 lb as a wireless parameter change target base station, that is, change data (step S05).
- the sectors of the selected radio base station which radio base station sector is to be changed in the radio parameter may be determined by human judgment, or may be determined by the radio parameter changing unit 11b. .
- FIG. 10 is a flowchart showing details of step S05.
- the change target search unit l lbl selects one of the sectors of the radio base station selected in the first (step S42) and the second (step S44).
- the top several radio base station sectors are selected in ascending order of the rate (step S51).
- a method of selecting the sectors of the top several radio base stations in ascending order of the line utilization rate is adopted (step S51).
- step S45 If all the sectors of the wireless base station at the extension point selected by the change target search unit l lbl (step S45) are present, then all the sectors of the wireless base station at the extension point are selected (step S52).
- the sector of the radio base station selected in this way is set as a radio parameter change target.
- the wireless parameter changing unit lib sets changed data changed to a predetermined value as a wireless parameter in the target wireless base station.
- the predetermined value may be determined by the wireless parameter changing unit 1 lb, or may be determined by human judgment (step S06).
- the wireless parameter changing unit l ib determines the predetermined value
- the wireless parameter changing unit l ib determines the current wireless parameter stored in the wireless parameter storing unit 15 and the traffic data storing unit. Using the current traffic data stored in 12c and the information on the location of the wireless base station output from the base station expansion unit 11a as input, the wireless parameters of the wireless base station are changed to predetermined values and changed. Outputs wireless parameter information as change data.
- the wireless parameter of the sector where the current traffic data line utilization is less than a certain value for example, 50% or less.
- a certain value for example, 50% or less
- the antenna tilt angle which is a wireless parameter, is set to a value smaller by a certain angle (for example, 1 degree) from the current angle in the depression angle direction.
- the values of the tilt angle and the transmission power of the antenna indicated by the radio parameter of the sector of the radio base station at the extension point are obtained from the values of the surrounding radio base stations. It is the average value of the wireless parameters of the sector.
- the simulator 12a calculates predicted traffic data including a predicted traffic amount, a predicted line utilization rate, and a predicted call loss rate in the wireless network to which the change indicated by the change data has been applied (step S07).
- the current traffic revenue calculation unit 12bl receives the current traffic data as input, and calculates the revenue obtained from the current traffic amount indicated by the current traffic data. For example, the current traffic revenue calculator 12bl calculates the revenue that can be obtained in one year (step
- Predicted traffic calculation unit 12b2 receives predicted traffic data as input, and calculates predicted revenue obtained from the predicted traffic amount indicated by the predicted traffic data. For example, the predicted traffic calculation unit 12b2 calculates the predicted income obtained for one year (step S09).
- the wireless parameter change cost calculation unit 13a receives information on the changed wireless parameter output from the wireless parameter change unit l ib as input, and calculates various costs required for changing the wireless parameter based on the input. calculate. For example, the wireless parameter change cost calculator 13a calculates the annual expenditure required to change the wireless parameters (step S10).
- the radio base station extension cost calculation unit 13b receives information on the extension point of the radio base station as input, and calculates the cost required to extend the radio base station to that point. For example, the wireless base station expansion cost calculation unit 13b calculates the annual expenditure required for the expansion of the wireless base station (step S11).
- the income and expenditure calculation unit 14 obtains the "increased income” due to the increase in the accommodated traffic by taking the difference between the current traffic income and the predicted traffic income. In addition, the income and expenditure calculation unit 14 obtains the “expansion expenditure” due to the expansion of the radio base station and the change of the radio parameter by summing the expenditure of the radio base station expansion cost and the expenditure of the radio parameter change cost.
- the balance calculation unit 14 adds the increased expenditure due to the addition of the wireless base station and the change in the wireless parameter to the expenditure that has been generated so far, thereby increasing the wireless base station and changing the wireless parameter. Of “expenditure”. It is assumed that the expenditure that has occurred so far is stored in the balance calculation unit 14.
- the income and expenditure calculator 14 calculates “profit” by subtracting “expenditure” from the obtained “income”, and obtains “profit rate” by dividing profit by expenditure (step S12).
- the income and expenditure calculation unit 14 outputs the profit ratio, profit, income, increased income, expenditure, increased expenditure, the extension point of the wireless base station, and the changed wireless parameter to the display unit 16 together.
- the display unit 16 performs display based on the output of the balance calculation unit 14 (step S13).
- FIG. 11 is an explanatory diagram showing an example of a display on the display unit 16.
- the display 16 The illustration is not limited to FIG.
- the wireless network optimization support system 1 may have a configuration including a memory as a computer-readable recording medium and a CPU as a computer.
- a program that causes the CPU to execute the above-described wireless network change support method executed by the wireless network optimization support system 1 is recorded in the memory that is a component of the wireless network optimization support system 1,
- the CPU which is a component of the support system 1, reads the program recorded in the memory, and executes the above-described wireless network change support method according to the read program.
- the program recorded in the memory that is a component of the wireless network optimization support system 1 may be recorded on a computer-readable recording medium such as an optical disk.
- a program recorded on a recording medium such as an optical disk is read by a reading device, and the read program is recorded in a memory that is a component of the wireless network optimization support system 1, whereby the wireless network optimization support system 1 is read.
- the above-described wireless network change support method executed by the CPU can be executed by the CPU that is a component of the wireless network optimization support system 1.
- the setting of the extension point of the radio base station and the setting of the radio parameter change of the radio base station are performed, and the setting contents and the profit rate, profit, income, and income and loss brought by the setting are combined. Output.
- a location that is not covered by any wireless base station sector (non-power- The search for a location where the amount of traffic is large in the sector of each wireless base station that is wide and the area around the power bar area is large, and it is possible to add a wireless base station candidate and change the wireless base station whose wireless parameters are to be changed. Get.
- the line utilization rate is equal to or more than a predetermined value or the call loss rate is Search for a location (wireless base station sector) that cannot be accommodated and that is expected to have a large traffic volume, and can be used as a candidate for an additional base station for a wireless base station or a wireless base station for which wireless parameters are to be changed. I get it.
- a radio base station is added to a place where the traffic volume that cannot be accommodated is expected to be large, or the radio parameters of the radio base station in a place where the traffic volume that can be accommodated is expected to be large are considered to be large.
- the order in which the first and second processes performed by the extension point searching unit lal when searching for an extension point of the wireless base station can be changed as appropriate.
- the extension point search unit lal may perform only one of the first processing and the second processing when searching for an extension point of the wireless base station.
- the order in which the first processing, the second processing, and the third processing performed by the change target searching unit l lbl when searching for a wireless base station whose wireless parameters are to be changed is as follows. Can be changed as appropriate. When searching for a wireless base station for which wireless parameters are to be changed, the change target searching unit l lbl does not perform the first processing, the second processing, and the third processing. You can do only one of them.
- the illustrated configuration is merely an example, and the present invention is not limited to this configuration.
- the present invention it is possible to calculate a profit and a profit rate of a wireless service provider when the change indicated by the change data is performed on the wireless network, and the change data of the wireless network that increases the profit rate can be obtained. Obtainable. As a result, it is possible to propose wireless network change data that increases the profit margin.
- FIG. 1 is a block diagram showing a configuration of a conventional wireless network.
- FIG. 2 is a block diagram showing a configuration of another conventional wireless network.
- FIG. 3 is a block diagram showing a configuration of still another conventional wireless network.
- FIG. 4 is a block diagram showing a configuration of another conventional wireless network.
- FIG. 5 is a block diagram showing a configuration of an embodiment of a wireless network change support system according to the present invention.
- FIG. 6 is a flowchart showing the operation of the embodiment of the wireless network change support system of the present invention.
- FIG. 7 is a flowchart showing details of step S02.
- FIG. 8 is a diagram illustrating a search performed by an extension point search unit.
- FIG. 9 is a flowchart showing details of step S04.
- FIG. 10 is a flowchart showing details of step S05.
- FIG. 11 is a diagram showing an example of a display on a display unit shown in FIG. 5.
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Development Economics (AREA)
- Accounting & Taxation (AREA)
- Strategic Management (AREA)
- Finance (AREA)
- Game Theory and Decision Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Economics (AREA)
- Marketing (AREA)
- Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005506922A JP4737417B2 (ja) | 2003-06-16 | 2004-06-10 | 無線ネットワーク変更支援システム及び無線ネットワーク変更支援方法 |
US10/547,079 US7844698B2 (en) | 2003-06-16 | 2004-06-10 | Wireless network modification support system and radio network modification support method |
EP04745767A EP1635590B1 (en) | 2003-06-16 | 2004-06-10 | Radio network modification support system and radio network modification support method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003170845 | 2003-06-16 | ||
JP2003-170845 | 2003-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004112414A1 true WO2004112414A1 (ja) | 2004-12-23 |
Family
ID=33549437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/008137 WO2004112414A1 (ja) | 2003-06-16 | 2004-06-10 | 無線ネットワーク変更支援システム及び無線ネットワーク変更支援方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7844698B2 (ja) |
EP (1) | EP1635590B1 (ja) |
JP (1) | JP4737417B2 (ja) |
CN (1) | CN1754399A (ja) |
WO (1) | WO2004112414A1 (ja) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2443781A (en) * | 2005-08-16 | 2008-05-14 | Nec Corp | Wireless communication system radio-parameter deciding method and apparatus |
JP2012213161A (ja) * | 2011-03-30 | 2012-11-01 | Fujitsu Ltd | フェムトセル・サービスの普及促進のための方法、装置及び記憶媒体 |
JP2012213159A (ja) * | 2011-03-30 | 2012-11-01 | Fujitsu Ltd | 無線ネットワークの計画、設計及び評価のための方法、装置及び記憶媒体 |
JP2012213160A (ja) * | 2011-03-30 | 2012-11-01 | Fujitsu Ltd | 無線サービスネットワークを評価する方法、装置及び記憶媒体 |
JP2013042202A (ja) * | 2011-08-11 | 2013-02-28 | Kddi Corp | 最適解検出装置及び最適解検出プログラム |
JP5962013B2 (ja) * | 2010-01-04 | 2016-08-03 | 日本電気株式会社 | 省電力運用支援装置、省電力運用支援方法、記録媒体、および基地局 |
US9451480B2 (en) | 2010-09-28 | 2016-09-20 | Qualcomm Incorporated | Methods and apparatus for power management in a wireless communication system |
US9497714B2 (en) | 2010-09-24 | 2016-11-15 | Qualcomm Incorporated | Power control for a network of access points |
JP2018056771A (ja) * | 2016-09-28 | 2018-04-05 | ソフトバンク株式会社 | シミュレーション装置および制御プログラム |
US10425845B2 (en) * | 2016-04-12 | 2019-09-24 | Telecom Italia S.P.A. | Radio access network node for a telecommunication network |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003291502A1 (en) * | 2002-11-08 | 2004-06-03 | Lyndale Trading Company Limited | Adaptive broadband platforms and methods of operation |
US7460865B2 (en) | 2003-06-18 | 2008-12-02 | Fisher-Rosemount Systems, Inc. | Self-configuring communication networks for use with process control systems |
JP4455418B2 (ja) * | 2005-06-13 | 2010-04-21 | キヤノン株式会社 | 通信パラメータ設定方法及び通信装置 |
EP2113872A1 (en) * | 2008-05-01 | 2009-11-04 | Accenture Global Services GmbH | Communications network deployment simulator |
US8868452B2 (en) * | 2008-05-01 | 2014-10-21 | Accenture Global Services Limited | Smart grid deployment simulator |
JP5137746B2 (ja) * | 2008-08-28 | 2013-02-06 | キヤノン株式会社 | 通信装置、通信装置の制御方法、プログラム |
US20140105069A1 (en) * | 2012-10-17 | 2014-04-17 | Smith Micro Software., Inc. | Mobile Network Management Using Multiple Wireless Modems |
US10356692B2 (en) * | 2016-07-20 | 2019-07-16 | International Business Machines Corporation | Beacon placement and distribution |
CN110381515B (zh) * | 2019-08-12 | 2022-04-12 | 桔帧科技(江苏)有限公司 | 基于合分模式实现小区网络流量资源指标预测的方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07283778A (ja) * | 1994-02-18 | 1995-10-27 | Nippon Telegr & Teleph Corp <Ntt> | 移動通信網総合評価シミュレーション方法及び移動通信網総合評価シミュレーションシステム |
WO1997036255A1 (en) | 1996-03-25 | 1997-10-02 | Glenayre Electronics, Inc. | System and method for integrating planning and operations information |
EP1091544A2 (en) | 1999-10-07 | 2001-04-11 | Nortel Networks Limited | Method for constructing communication networks |
JP2003101537A (ja) * | 2001-09-26 | 2003-04-04 | Hitachi Electronics Service Co Ltd | ネットワーク構築検証シミュレータ及びコンピュータ・プログラム |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI100043B (fi) | 1992-01-23 | 1997-08-29 | Nokia Telecommunications Oy | Solukkoradioverkon suunnittelumenetelmä ja -järjestelmä |
JPH06188817A (ja) | 1992-12-16 | 1994-07-08 | Oki Electric Ind Co Ltd | 無線基地局配置方法 |
JPH08317458A (ja) | 1995-05-19 | 1996-11-29 | Sanyo Electric Co Ltd | Phs基地局の設置パターン決定方法 |
JPH08322079A (ja) | 1995-05-26 | 1996-12-03 | Sanyo Electric Co Ltd | Phsにおける増設基地局の設置位置等決定方法 |
US5710758A (en) * | 1995-09-29 | 1998-01-20 | Qualcomm Incorporated | Wireless network planning tool |
US5987328A (en) * | 1997-04-24 | 1999-11-16 | Ephremides; Anthony | Method and device for placement of transmitters in wireless networks |
US6094580A (en) * | 1997-10-16 | 2000-07-25 | Nortel Networks Corporation | Method for optimizing cell-site placement |
US6298328B1 (en) * | 1998-03-26 | 2001-10-02 | Telecompetition, Inc. | Apparatus, method, and system for sizing markets |
US6628622B1 (en) * | 1998-09-17 | 2003-09-30 | Qwest Communications International Inc. | SS7 network planning tool |
US6418327B1 (en) * | 1999-04-06 | 2002-07-09 | Spike Broadband Systems, Inc. | Methods and determining an optimum sector distribution within a coverage area of a wireless communication system |
US6393290B1 (en) * | 1999-06-30 | 2002-05-21 | Lucent Technologies Inc. | Cost based model for wireless architecture |
US7243054B2 (en) * | 1999-07-14 | 2007-07-10 | Wireless Valley Communications, Inc. | Method and system for displaying network performance, cost, maintenance, and infrastructure wiring diagram |
JP2001285923A (ja) | 2000-03-31 | 2001-10-12 | Mitsubishi Electric Corp | 基地局配置パターン決定方法 |
US20010051503A1 (en) * | 2000-06-12 | 2001-12-13 | Lush Christa S. | System and method of planning and designing a broadband wireless network |
US6813497B2 (en) * | 2000-10-20 | 2004-11-02 | Leap Wirelesss International | Method for providing wireless communication services and network and system for delivering same |
JP2002261818A (ja) * | 2001-03-01 | 2002-09-13 | Kddi Corp | 通信ネットワークリソース割当方法 |
JP3573110B2 (ja) | 2001-06-26 | 2004-10-06 | 日本電気株式会社 | サービスエリア試験システム |
US6917816B2 (en) * | 2001-09-07 | 2005-07-12 | Lucent Technologies Inc. | Method and apparatus for analyzing and designing various network configuration scenarios |
US7184770B1 (en) * | 2003-03-05 | 2007-02-27 | Aruba Networks, Inc. | System and method for positioning and calibrating wireless network devices |
-
2004
- 2004-06-10 EP EP04745767A patent/EP1635590B1/en not_active Expired - Fee Related
- 2004-06-10 CN CNA200480005114XA patent/CN1754399A/zh active Pending
- 2004-06-10 US US10/547,079 patent/US7844698B2/en not_active Expired - Fee Related
- 2004-06-10 JP JP2005506922A patent/JP4737417B2/ja not_active Expired - Fee Related
- 2004-06-10 WO PCT/JP2004/008137 patent/WO2004112414A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07283778A (ja) * | 1994-02-18 | 1995-10-27 | Nippon Telegr & Teleph Corp <Ntt> | 移動通信網総合評価シミュレーション方法及び移動通信網総合評価シミュレーションシステム |
WO1997036255A1 (en) | 1996-03-25 | 1997-10-02 | Glenayre Electronics, Inc. | System and method for integrating planning and operations information |
EP1091544A2 (en) | 1999-10-07 | 2001-04-11 | Nortel Networks Limited | Method for constructing communication networks |
JP2003101537A (ja) * | 2001-09-26 | 2003-04-04 | Hitachi Electronics Service Co Ltd | ネットワーク構築検証シミュレータ及びコンピュータ・プログラム |
Non-Patent Citations (1)
Title |
---|
See also references of EP1635590A4 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2443781B (en) * | 2005-08-16 | 2010-02-10 | Nec Corp | Radio parameter determination method and device for a radio communication system |
US8112089B2 (en) | 2005-08-16 | 2012-02-07 | Nec Corporation | Radio parameter determination method and device for a radio communication system |
JP4946866B2 (ja) * | 2005-08-16 | 2012-06-06 | 日本電気株式会社 | 無線通信システムの無線パラメータ決定方法および装置 |
GB2443781A (en) * | 2005-08-16 | 2008-05-14 | Nec Corp | Wireless communication system radio-parameter deciding method and apparatus |
JP5962013B2 (ja) * | 2010-01-04 | 2016-08-03 | 日本電気株式会社 | 省電力運用支援装置、省電力運用支援方法、記録媒体、および基地局 |
US9622169B2 (en) | 2010-01-04 | 2017-04-11 | Nec Corporation | Power-save operation supporting apparatus, power-save operation supporting method, storage medium and base station |
US9497714B2 (en) | 2010-09-24 | 2016-11-15 | Qualcomm Incorporated | Power control for a network of access points |
US9451480B2 (en) | 2010-09-28 | 2016-09-20 | Qualcomm Incorporated | Methods and apparatus for power management in a wireless communication system |
JP2012213160A (ja) * | 2011-03-30 | 2012-11-01 | Fujitsu Ltd | 無線サービスネットワークを評価する方法、装置及び記憶媒体 |
JP2012213159A (ja) * | 2011-03-30 | 2012-11-01 | Fujitsu Ltd | 無線ネットワークの計画、設計及び評価のための方法、装置及び記憶媒体 |
JP2012213161A (ja) * | 2011-03-30 | 2012-11-01 | Fujitsu Ltd | フェムトセル・サービスの普及促進のための方法、装置及び記憶媒体 |
JP2013042202A (ja) * | 2011-08-11 | 2013-02-28 | Kddi Corp | 最適解検出装置及び最適解検出プログラム |
US10425845B2 (en) * | 2016-04-12 | 2019-09-24 | Telecom Italia S.P.A. | Radio access network node for a telecommunication network |
JP2018056771A (ja) * | 2016-09-28 | 2018-04-05 | ソフトバンク株式会社 | シミュレーション装置および制御プログラム |
Also Published As
Publication number | Publication date |
---|---|
CN1754399A (zh) | 2006-03-29 |
EP1635590B1 (en) | 2011-08-10 |
US7844698B2 (en) | 2010-11-30 |
JPWO2004112414A1 (ja) | 2006-07-27 |
JP4737417B2 (ja) | 2011-08-03 |
EP1635590A4 (en) | 2009-08-26 |
EP1635590A1 (en) | 2006-03-15 |
US20060083366A1 (en) | 2006-04-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004112414A1 (ja) | 無線ネットワーク変更支援システム及び無線ネットワーク変更支援方法 | |
US6810246B1 (en) | Method and system for analyzing digital wireless network performance | |
CN101150836B (zh) | 无线精确规划模测系统及方法 | |
US7171218B2 (en) | Mobile unit, server and method of providing information | |
WO2006031004A1 (en) | System and method for determining position of mobile terminal | |
JP3877135B2 (ja) | 移動通信システムにおける周辺ゾーンテーブル作成方法及び装置並びにプログラム及び記憶媒体 | |
US11729631B2 (en) | System and method of automatic outdoor small cell planning | |
US6836467B2 (en) | Method for modeling radioports in a wireless communication network design | |
CN102362517A (zh) | 无线电波状态测量系统、无线电波状态测量方法及存储无线电波状态测量程序的存储介质 | |
Abdelkhalek et al. | A genetic algorithm based decision support system for the multi-objective node placement problem in next wireless generation network | |
US7330723B2 (en) | Communication performance calculation method and communication performance calculation apparatus in mobile communication system, and blocking probability calculation method and blocking probability calculation apparatus in communication system, and recording medium | |
US10194329B2 (en) | Site position priority determination device and method | |
CN116546521A (zh) | 一种基于数字孪生技术的移动通信网络覆盖优化方法 | |
EP1301050B1 (en) | Design support system and design support method for radio base stations in a mobile communication system | |
Wang et al. | Base station deployment with capacity and coverage in WCDMA systems using genetic algorithm at different height | |
Rahmatia et al. | Automatic cell planning of LTE FDD 1800 MHz network in Klaten, Central Java | |
US6636739B1 (en) | Method and system for modeling migration of call traffic in a multiple mode wireless network | |
EP1079646B1 (en) | Communication performance and blocking probability calculation method, apparatus in mobile communication system, and recording medium | |
US20110319067A1 (en) | Method for Wireless Cell Site Collocation Optimization | |
Nwelih et al. | Optimization of base station placement in 4G LTE broadband networks using adaptive variable length genetic algorithm | |
Sharma et al. | Situation-aware wireless networks | |
Bernardi et al. | IncrEase: A tool for incremental planning of rural fixed Broadband Wireless Access networks | |
KR20120037138A (ko) | 전파 환경을 고려한 무선 네트워크 플래닝 시스템 및 방법, 이를 수행하는 단말 장치 | |
KR960011868B1 (ko) | 이동 통신 셀 구성 방법 | |
KR100868850B1 (ko) | 무선망 설계 시스템에서의 가시선 영역 분석 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005506922 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004745767 Country of ref document: EP Ref document number: 2004805114X Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2006083366 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10547079 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2004745767 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10547079 Country of ref document: US |