CA2538331A1 - Simulation driven wireless lan planning - Google Patents
Simulation driven wireless lan planning Download PDFInfo
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- CA2538331A1 CA2538331A1 CA002538331A CA2538331A CA2538331A1 CA 2538331 A1 CA2538331 A1 CA 2538331A1 CA 002538331 A CA002538331 A CA 002538331A CA 2538331 A CA2538331 A CA 2538331A CA 2538331 A1 CA2538331 A1 CA 2538331A1
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- 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
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- 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
- H04W16/20—Network planning tools for indoor coverage or short range network deployment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Abstract
Methods and apparatuses of planning a wireless local area network are disclosed. Various embodiments receive data such as floor plan data, coverage data, and/or capacity data about a site for the WLAN. Based on such data, features of the WLAN access points can be determined. Examples are the quantity, placement, and/or configuration of the access points.
Description
SIMULATION DRIVEN WIRELESS LAN PLANNING
BACKGROUND
Pre-deployment planning of a wireless local area network (WLAN) typically requires a manual site survey. The manual site survey requires an expensive and time-consuming evaluation of the WLAN site, including taking RF signal strength measurements and path loss level measurements, and assessing appropriate areas for placing access points.
Moreover, the site survey is coverage oriented, and not capacity oriented. Bven if access points are deployed in accordance with the results of the survey, the WLAN may be able to satisfy a light throughput throughout the entire WLAN site, and yet be easily overwhelmed by capacity demands.
Therefore, it would be desirable to reduce the labor associated with pre-deployment planning, such as the labor associated with the manual site survey.
The predeployment assumptions which drove the deployment of the access points of a WLAN can become irrelevant quickly, in the dynamic environment of a WLAN.
Assumptions about the capacity, location, and applications of the WLAN users may change dramatically from the time of a prior manual survey or a prior simulation. Therefore, the ability to rapidly adjust the configurations of the access points permits the WLAN to adjust to the changing requirements ofthe users. Rapidly changing user requirements requires maintaining an accurate picture ofthe currently implemented WLAN. In anything but the simplest wireless deployments, maintaining accurate records of the current configurations of multiple access points, with different channel assignments, power levels, locations, etc. is nontrivial. When not just one access point, but multiple access points, experience changing configurations, not just once, but multiple times, any central record of the access point configurations may be nonexistent, or worse, inaccurate. In the case of a nonexistent configuration record, the configuration of each and every access point may need to be verified. In the case of an inaccurate configuration record, modifying the configurations of the access points may actually worsen, instead of enhance, the performance of the WLAN. Therefore, it can be desirable to reduce the overhead associated with maintaining the configurations of WLAN access points.
BRIEF SUMMARY OF THE INVENTION
Methods and apparatuses of planning a wireless local area network are disclosed.
Various embodiments receive data such as floor plan data, coverage data, and/or capacity data about a site for the WLAN. Based on such data, features of the WLAN access points can be determined. Examples are the quantity, placement, and/or configuration of the access points.
BRIEF DESCRIPTION OF FIGURES
Figure 1 shows an example deployment of a WLAN.
Figure 2 shows an example method of planning a WLAN.
Figure 3 illustrates a computer progr ammed fr om program media.
Figure 4 illustrates a computer programmed from a network.
DETAILED DESCRIPTION
The manual site survey can be replaced with WLAN simulation that considers floor plans and capacity. Various physical factors are considered in the WLAN simulation, such as:
architectural factors (e.g., building size, building topology, obstacles, and office sizes), attenuation factors for different objects (e.g., walls, windows, cubicles, doors, elevators, other fixed objects) and/or types of material (e.g., free space, metal, concrete, plaster, cloth partition), and interference sources (e.g., microwave ovens, cordless phones, Bluetooth devices). Other coverage factors include transmitter power, receiver sensitivity at the target communications rate, and target operational link margin.
The WLAN simulation accounts for WLAN bandwidth capacity shared by all users, and not just coverage. Because aii~ is a shared medium and not a switched medium, focusing exclusively on coverage can yield nonideal results, such as for anything but the simplest deployments such as a single access point.
The capacity calculation can consider application bandwidth, associating areas with applications and user groups. Simple web browsing and e-mail applications tend to cause less radio activity than enterprise resource planning or customer relationship management applications. A particular area of a WLAN site can contain multiple coverage areas if several groups of users in the area require differing bandwidth from the network. For example, engineering applications of an engineering workgroup may be more bandwidth-intensive than office applications used by sales and marketing. Also considered are bandwidth per user, number of users, activity rate per user, overhead efficiency (e.g., MAC
inefficiency and error correction overhead), the wireless standard (~02.11alb/g), county of operation, and baseline
BACKGROUND
Pre-deployment planning of a wireless local area network (WLAN) typically requires a manual site survey. The manual site survey requires an expensive and time-consuming evaluation of the WLAN site, including taking RF signal strength measurements and path loss level measurements, and assessing appropriate areas for placing access points.
Moreover, the site survey is coverage oriented, and not capacity oriented. Bven if access points are deployed in accordance with the results of the survey, the WLAN may be able to satisfy a light throughput throughout the entire WLAN site, and yet be easily overwhelmed by capacity demands.
Therefore, it would be desirable to reduce the labor associated with pre-deployment planning, such as the labor associated with the manual site survey.
The predeployment assumptions which drove the deployment of the access points of a WLAN can become irrelevant quickly, in the dynamic environment of a WLAN.
Assumptions about the capacity, location, and applications of the WLAN users may change dramatically from the time of a prior manual survey or a prior simulation. Therefore, the ability to rapidly adjust the configurations of the access points permits the WLAN to adjust to the changing requirements ofthe users. Rapidly changing user requirements requires maintaining an accurate picture ofthe currently implemented WLAN. In anything but the simplest wireless deployments, maintaining accurate records of the current configurations of multiple access points, with different channel assignments, power levels, locations, etc. is nontrivial. When not just one access point, but multiple access points, experience changing configurations, not just once, but multiple times, any central record of the access point configurations may be nonexistent, or worse, inaccurate. In the case of a nonexistent configuration record, the configuration of each and every access point may need to be verified. In the case of an inaccurate configuration record, modifying the configurations of the access points may actually worsen, instead of enhance, the performance of the WLAN. Therefore, it can be desirable to reduce the overhead associated with maintaining the configurations of WLAN access points.
BRIEF SUMMARY OF THE INVENTION
Methods and apparatuses of planning a wireless local area network are disclosed.
Various embodiments receive data such as floor plan data, coverage data, and/or capacity data about a site for the WLAN. Based on such data, features of the WLAN access points can be determined. Examples are the quantity, placement, and/or configuration of the access points.
BRIEF DESCRIPTION OF FIGURES
Figure 1 shows an example deployment of a WLAN.
Figure 2 shows an example method of planning a WLAN.
Figure 3 illustrates a computer progr ammed fr om program media.
Figure 4 illustrates a computer programmed from a network.
DETAILED DESCRIPTION
The manual site survey can be replaced with WLAN simulation that considers floor plans and capacity. Various physical factors are considered in the WLAN simulation, such as:
architectural factors (e.g., building size, building topology, obstacles, and office sizes), attenuation factors for different objects (e.g., walls, windows, cubicles, doors, elevators, other fixed objects) and/or types of material (e.g., free space, metal, concrete, plaster, cloth partition), and interference sources (e.g., microwave ovens, cordless phones, Bluetooth devices). Other coverage factors include transmitter power, receiver sensitivity at the target communications rate, and target operational link margin.
The WLAN simulation accounts for WLAN bandwidth capacity shared by all users, and not just coverage. Because aii~ is a shared medium and not a switched medium, focusing exclusively on coverage can yield nonideal results, such as for anything but the simplest deployments such as a single access point.
The capacity calculation can consider application bandwidth, associating areas with applications and user groups. Simple web browsing and e-mail applications tend to cause less radio activity than enterprise resource planning or customer relationship management applications. A particular area of a WLAN site can contain multiple coverage areas if several groups of users in the area require differing bandwidth from the network. For example, engineering applications of an engineering workgroup may be more bandwidth-intensive than office applications used by sales and marketing. Also considered are bandwidth per user, number of users, activity rate per user, overhead efficiency (e.g., MAC
inefficiency and error correction overhead), the wireless standard (~02.11alb/g), county of operation, and baseline
2
3 PCT/US2004/030769 association rate for the wireless standard. Adequate bandwidth and adequate coverage can be assured by computing a sufficient number of access points. Margin can be designed to allow for future growth, new users, and users roaming into area The placement and final settings of access points are determined. User density and cell size axe adjusted by adjusting access point transmit power settings and the distance between access points. Microcells with lower access point settings can be planned closer together, sharing more bandwidth among fewer users per access point. In contrast, increased distance from access points decreases signal strength and lowers capacity. Also potentially adjustable is the minimum association rate, the lowest RF signal strength which can support the lowest data rate below which a user must associate with another access point. This can prevent slow users who take more air time for transmissions and slow the throughput of other users. Adjusting access point transmitted power can increase frequency re-use flexibility and reduce co-channel interference. Channel allocation among the access points is optimized, automatically identifying channel conflicts and assigning channels. Automatic channel assignment to the access points minimizes co-channel interference and increase throughput, taking advantage of the three non-overlapping channels of X02.1 lb, and the eight or more non-overlapping channels of X02.1 la.
Adding an access point, or adjusting an existing access point's configuration, impacts surrounding access points. Thus, addition of a new access point or modification of access point configuration can result in automatic recalculation of channel assignments and power levels for all access points. Adjusting all access points at the system level, and resimulating the RF
topology, confirms sufficient bandwidth. This type of planning can not only model the deployment of a brand new WLAN deployment, but also model the addition of new access points to an already deployed WLAN.
The simulation can generate work orders including installation plans depicting actual physical location and dimensions on a floor plan for access point installation and/or distribution system switch installation.
RF measurements can troubleshoot differences between expected and actual WLAN
performance. Verification of the actual WLAN performance which was planned pre-implementation should not wait for user complaints in response to network access outage or slow bandwidth experienced by users. Further, these measurements can fine-tune future deployments of access points or configuration adjustments of existing access points.
Periodic RF measurements can verify and update elements of the configuration planned at predeployment time (e.g., access point placement, wired pons, expected RF
signal strength, coverage, channel assignment, transmit power).
The actual RF topology can be superposed onto the original design to speed troubleshooting. Combining this map, which maps all authorized access points onto floor plans, with regular RF sweeps of every access point to listen across every channel, can show a complete view of all access points and stations. Comparison of the map of all authorized access points with the RF sweep map allows detection and location of rogue access points. Comparison of all authorized users with users detected from the RF sweep map also allows detection and location of rogue stations. The rogue access point or station can be triangulated from the access points.
Figure 1 shows an example deployment of a WLAN 100. The distribution system includes a first distribution system switch DS 1 112, a second distribution system switch DS2 114, and a distr ibution system backbone 116 connecting the fir st distribution system switch DS 1 112 and the second distribution system switch DS2 114. A first extended service set network ESS1 120 includes the first distribution system switch DS1 112, access point APlA 122, access point AP 1B 124, access point AP 1 C 126, and station 128. Access point AP lA
122, access point AP 1 B 124, and access point AP 1 C 126 are connected to the first distribution system switch DS 1 112 by wired links 172, 174, and 176, respectively. Station 128 and access point AP 1A 122 are connected via wir Bless link 192, and fomn a first basic service set network BSS 1 140. A second extended service set network ESS2 130 includes the second distribution system switch DS2 114, access point AP2A 132, access point AP2B 134, access point AP2C 136, and station 138.
Access point AP2A 132, access point AP2B 134, and access point AP2C 136 are connected to the second distribution system switch DS2 114 by wired links 182, 184, and 186, respectively.
Station 138 and access point AP2B 134 are connected via wireless link 194, and form a second basic service set network BSS2 150. Station 160 is in process of being handed off between access point AP 1 C 126 of the first extended service set network ESS 1 120 and access point AP2A 132 of the second extended service set network ESS2 130, and thereby is associated with two wireless links 196 and 198 to access point AP 1 C 126 and access point AP2A 132, respectively.
Figure 2 shows an example of a method for managing a WLAN. In 210, floor plan data about a site for the WLAN are received. The floor plan data has objects which can be associated with radio fi~equency attenuation factors. For example, walls, windows, doors, and cubicles absorb RF signals. Different materials have different attenuation factors. The attenuation factors can depend also on a technology standard of the WLAN, such as 802.1 la or 802.1 lb. The floor plan data can be imported and/or manually drawn via computer. Examples of file types which can be impouted are: AutoCAD drawings (DWG), Drawing Interchange Fomnat (DXF), Crraphics
Adding an access point, or adjusting an existing access point's configuration, impacts surrounding access points. Thus, addition of a new access point or modification of access point configuration can result in automatic recalculation of channel assignments and power levels for all access points. Adjusting all access points at the system level, and resimulating the RF
topology, confirms sufficient bandwidth. This type of planning can not only model the deployment of a brand new WLAN deployment, but also model the addition of new access points to an already deployed WLAN.
The simulation can generate work orders including installation plans depicting actual physical location and dimensions on a floor plan for access point installation and/or distribution system switch installation.
RF measurements can troubleshoot differences between expected and actual WLAN
performance. Verification of the actual WLAN performance which was planned pre-implementation should not wait for user complaints in response to network access outage or slow bandwidth experienced by users. Further, these measurements can fine-tune future deployments of access points or configuration adjustments of existing access points.
Periodic RF measurements can verify and update elements of the configuration planned at predeployment time (e.g., access point placement, wired pons, expected RF
signal strength, coverage, channel assignment, transmit power).
The actual RF topology can be superposed onto the original design to speed troubleshooting. Combining this map, which maps all authorized access points onto floor plans, with regular RF sweeps of every access point to listen across every channel, can show a complete view of all access points and stations. Comparison of the map of all authorized access points with the RF sweep map allows detection and location of rogue access points. Comparison of all authorized users with users detected from the RF sweep map also allows detection and location of rogue stations. The rogue access point or station can be triangulated from the access points.
Figure 1 shows an example deployment of a WLAN 100. The distribution system includes a first distribution system switch DS 1 112, a second distribution system switch DS2 114, and a distr ibution system backbone 116 connecting the fir st distribution system switch DS 1 112 and the second distribution system switch DS2 114. A first extended service set network ESS1 120 includes the first distribution system switch DS1 112, access point APlA 122, access point AP 1B 124, access point AP 1 C 126, and station 128. Access point AP lA
122, access point AP 1 B 124, and access point AP 1 C 126 are connected to the first distribution system switch DS 1 112 by wired links 172, 174, and 176, respectively. Station 128 and access point AP 1A 122 are connected via wir Bless link 192, and fomn a first basic service set network BSS 1 140. A second extended service set network ESS2 130 includes the second distribution system switch DS2 114, access point AP2A 132, access point AP2B 134, access point AP2C 136, and station 138.
Access point AP2A 132, access point AP2B 134, and access point AP2C 136 are connected to the second distribution system switch DS2 114 by wired links 182, 184, and 186, respectively.
Station 138 and access point AP2B 134 are connected via wireless link 194, and form a second basic service set network BSS2 150. Station 160 is in process of being handed off between access point AP 1 C 126 of the first extended service set network ESS 1 120 and access point AP2A 132 of the second extended service set network ESS2 130, and thereby is associated with two wireless links 196 and 198 to access point AP 1 C 126 and access point AP2A 132, respectively.
Figure 2 shows an example of a method for managing a WLAN. In 210, floor plan data about a site for the WLAN are received. The floor plan data has objects which can be associated with radio fi~equency attenuation factors. For example, walls, windows, doors, and cubicles absorb RF signals. Different materials have different attenuation factors. The attenuation factors can depend also on a technology standard of the WLAN, such as 802.1 la or 802.1 lb. The floor plan data can be imported and/or manually drawn via computer. Examples of file types which can be impouted are: AutoCAD drawings (DWG), Drawing Interchange Fomnat (DXF), Crraphics
4 Interchange Format (GIF), and/or Joirit Photographic Experts Group (JPEG). CAD
drawings, such as DWG and DXF, can have advantages such as appropriately scaled, dimensionally accurate, floor plan data; vector graphics based drawings, and/or drawing objects grouped together and/or organized by layers, enabling the display and/or manipulation of similar objects such as walls, doors, and/or windows.
Objects can be graphically placed in the floor plan data and assigned an obstacle type and attenuation factor. Also, an obstacle type and attenuation factor can be assigned to objects in a CAD drawing. These values can be used when calculating coverage for the network. Objects can also be created manually. If a drawing is not entirely accurate, objects can be added andlor deleted to reflect floor plan data changes not included in the drawing.
Grouping objects is useful. For example, one attenuation factor can be applied to an area. For expediency, all objects in a layer of a CAD drawing can be converted into objects, all objects in an area of any drawing can be converted into objects, multiple objects in a drawing can be converted into objects, and/or grouped objects in any drawing can be converted into RF
obstacles.
In the event an access point is placed on a pa~.~tial wall or other vertical surface, such as partial walls or other vertical surface can be treated as a full walls with, for example, 100 dB
attenuation, to accurately model the predicted coverage. Other models can be applied as well, such as lower or higher attenuation.
In 220, coverage data about the site for the WLAN are received. The coverage data can indicate the coverage areas of the site serviced by the WLAN access points.
The coverage data can be indicated by at least the floor plan data. The coverage data can depend on a technology standard of the WLAN. A coverage area can support one or multiple technology standar ds of the WLAN; also, multiple coverage areas can support one or multiple technology standards of the WLAN. The coverage areas can overlap partly or wholly. Coverage areas can be given more or more properties, such as average desired association rate for typical clients in the coverage area, station throughput (transmit or receive or combined transmit and receive) should not exceed average desired association rate.
In 230, capacity data about the site for the WLAN are received. The capacity data can include one or more throughput rates for stations serviced by the WLAN access points.
Examples of throughput rates are 1 Mbps for 802.11b and 5 Mbps for 802.11a.
The capacity data can include one or more average desired association rates for stations serviced by the WLAN access points. The capacity data can include one or more quantities of stations serviced by the WLAN access points. The quantity can characterize, for example, active stations serviced by the WLAN access points andlor a total number of stations serviced by the WLAN access points. The quantity can be expressed as, for example, a number of stations and/or may be a ratio. An example of a ratio is a ratio of active clients compared to total clients. For example, the ratio 5:1 indicates that, statistically, 20 percent of the clients are active at any given time.
Association data can be received in some embodiments. Based at least on the association data, quantity, placement, and configuration of the WLAN access points can be determined. The association data can include allowable channels for the WLAN access points. If certain channels need to be avoided completely in the coverage area, such restrictions can be defined. For example, a mufti-tenant building agreement might require an exclusive subset of channels for another tenant. For some particular WLAN access points, the channel allocation process can automatically avoid the channel of those particular access points at least in the immediate area of those particular access points. This can make the listing of restricted channels unnecessary.
The association data can include one or more minimum rates for beacons of the WLAN
access points and/or one or more minimum rates for probe responses of the WLAN
access points. A minimum transmit rate can be the minimum data rate for beacons and/or probe responses. The minimum transmit rate can facilitate faster roaming between access points. In one scenario, 802.11b devices can send beacons at the higher of, for example, 2 Mbps or a minimum transmit rate. In another scenario, 802.1 la devices can send beacons at the higher of, for example, 24 Mbps or a minimum data transmit rate. The minimum transmit rate can depend on the radio type. Some example values for 802.1 lb devices are 11, 5.5, 2, and 1 Mbps. Some example values for 802. l la radios are 54, 48, 36, 24, 18, 12, 9, and 6 Mbps.
Association data can also include the domain, and/or any other coverage area sharing access points with this coverage area.
In 240, based at least on the floor plan data, the coverage data, and the capacity data, the quantity, placement, and configuration of WLAN access points are determined.
The configuration of WLAN access points can include mufti-homing for the WLAN
access points. The configuration of the WLAN access points can include power levels for the WLAN access points. Power levels, such as transmit power levels, must be high enough to adequately cover an area, but should not be too high in order to help r educe co-channel interference. The configuration can include channel assignments for the WLAN
access points.
The placement of the WLAN access points can be manually adjustable via computer.
Based at least on such manually adjusted placement of the WLAN, the quantity and/or configuration of the WLAN access points can be determined. Also, based at least on such manually adjusted placement of at least one WLAN access point, the placement of at least one other WLAN access point can be determined. Further, based at least on such manually adjusted placement of at least one WLAN access point, the coverage data andlor the capacity data of the WLAN site can be determined. Manual adjustment by adding/removing/moving access points can help to more adequately cover holes in RF coverage of the WLAN access points.
In some embodiments, at least the quantity and placement of the WLAN access points are displayed.
Also, the quantity and/or the configuration of the WLAN access points can be manually adjustable via computer. Based at least on such manual adjustments, the placement, quantity andlor configuration of the WLAN access points can be determined. Also, based at least on such manual adjustments, the coverage data and/or the capacity data of the WLAN
site can be determined. When defining a coverage area, the coverage area should extend to the inside of external walls, or else the external walls can be accounted for when computing how many access points are required for the coverage area. In some embodiments, even if external walls are included in the coverage area, the access point computation can automatically truncate the coverage area to exclude the external walls.
In some embodiments, preexisting access point data can be received. Based at least on the preexisting access point data, the quantity, placement, and/or configuration of the WLAN
access points can be determined.
Work order data can be generated, based at least on the quantity, the placement, and the configuration of the WLAN access points, and/or based at least on one or more changes for the floor plan data about the WLAN site, the quantity of WLAN access points, the placement of WLAN access points, and/or the configuration of the WLAN access points. The work order data can include installation instructions for the WLAN access points and/or installation instructions .
for one or more distribution system switches connecting the WLAN access points.
Some embodiments can receive wiring closet data. The wiring closet data can indicate one or more locations for one or more distribution system switches and/or other networking devices at the site for the WLAN. The distribution system switches connect the WLAN access points. Based at least partly on the wiring closet data, the quantity, placement, and/or configuration of the WLAN access points can be determined. Connections between the one or more distribution system switches and the WLAN access points can be determined. The wiring closet data can include redundant connection data to the WLAN access points.
The quantity, placement, and/or configuration of the distribution system switches can be determined based at least on the floor plan data, the coverage data, and/or the capacity data. It can be ensured that UTP Cats cabling distances between access points and their respective distribution system switches in wiring closets do not exceed, for example, 100 meters, or 330 feet. The quantity, placement, and/or configuration of one or more distribution system switches connecting the WLAN access points at the WLAN site can be changed based at least on measured WLAN data.
Dual homing of access points can be supported; the same or different distribution system switches can be used.
A group of distribution system switches that work together to support roaming users is a domain. In a domain, one distribution system switch can be defined as a seed device, which can distribute information to the distribution system switches defined in the domain. The domain can allow users to roam geographically from one distribution system switch to another without disruption of network connectivity. As users move from one location to another, their connections to servers can appear the same. When users connect to a distribution system switch in a domain, they connect as a member of a VLAN through their authorized identities. If the native VLAN for users is not present on the distribution system switch to which they connect, the distribution system switch creates a tunnel to that VLAN.
Computer code in various embodiments can be implemented in hardware, software, or a combination of hardware and software.
Figure 3 illustrates a computer 310, which is programmed at least in part by code stored on program media 320. The program media 320 is used to place at least some of the code 325 on the computer 310.
Figure 4 illustrates a computer 410, which is programmed at least in part by code from a network 430. The network 430 is used to place code on the computer 410.
The computer running the code can be integral to or separate from networking elements such as distribution switches, access points, etc.
drawings, such as DWG and DXF, can have advantages such as appropriately scaled, dimensionally accurate, floor plan data; vector graphics based drawings, and/or drawing objects grouped together and/or organized by layers, enabling the display and/or manipulation of similar objects such as walls, doors, and/or windows.
Objects can be graphically placed in the floor plan data and assigned an obstacle type and attenuation factor. Also, an obstacle type and attenuation factor can be assigned to objects in a CAD drawing. These values can be used when calculating coverage for the network. Objects can also be created manually. If a drawing is not entirely accurate, objects can be added andlor deleted to reflect floor plan data changes not included in the drawing.
Grouping objects is useful. For example, one attenuation factor can be applied to an area. For expediency, all objects in a layer of a CAD drawing can be converted into objects, all objects in an area of any drawing can be converted into objects, multiple objects in a drawing can be converted into objects, and/or grouped objects in any drawing can be converted into RF
obstacles.
In the event an access point is placed on a pa~.~tial wall or other vertical surface, such as partial walls or other vertical surface can be treated as a full walls with, for example, 100 dB
attenuation, to accurately model the predicted coverage. Other models can be applied as well, such as lower or higher attenuation.
In 220, coverage data about the site for the WLAN are received. The coverage data can indicate the coverage areas of the site serviced by the WLAN access points.
The coverage data can be indicated by at least the floor plan data. The coverage data can depend on a technology standard of the WLAN. A coverage area can support one or multiple technology standar ds of the WLAN; also, multiple coverage areas can support one or multiple technology standards of the WLAN. The coverage areas can overlap partly or wholly. Coverage areas can be given more or more properties, such as average desired association rate for typical clients in the coverage area, station throughput (transmit or receive or combined transmit and receive) should not exceed average desired association rate.
In 230, capacity data about the site for the WLAN are received. The capacity data can include one or more throughput rates for stations serviced by the WLAN access points.
Examples of throughput rates are 1 Mbps for 802.11b and 5 Mbps for 802.11a.
The capacity data can include one or more average desired association rates for stations serviced by the WLAN access points. The capacity data can include one or more quantities of stations serviced by the WLAN access points. The quantity can characterize, for example, active stations serviced by the WLAN access points andlor a total number of stations serviced by the WLAN access points. The quantity can be expressed as, for example, a number of stations and/or may be a ratio. An example of a ratio is a ratio of active clients compared to total clients. For example, the ratio 5:1 indicates that, statistically, 20 percent of the clients are active at any given time.
Association data can be received in some embodiments. Based at least on the association data, quantity, placement, and configuration of the WLAN access points can be determined. The association data can include allowable channels for the WLAN access points. If certain channels need to be avoided completely in the coverage area, such restrictions can be defined. For example, a mufti-tenant building agreement might require an exclusive subset of channels for another tenant. For some particular WLAN access points, the channel allocation process can automatically avoid the channel of those particular access points at least in the immediate area of those particular access points. This can make the listing of restricted channels unnecessary.
The association data can include one or more minimum rates for beacons of the WLAN
access points and/or one or more minimum rates for probe responses of the WLAN
access points. A minimum transmit rate can be the minimum data rate for beacons and/or probe responses. The minimum transmit rate can facilitate faster roaming between access points. In one scenario, 802.11b devices can send beacons at the higher of, for example, 2 Mbps or a minimum transmit rate. In another scenario, 802.1 la devices can send beacons at the higher of, for example, 24 Mbps or a minimum data transmit rate. The minimum transmit rate can depend on the radio type. Some example values for 802.1 lb devices are 11, 5.5, 2, and 1 Mbps. Some example values for 802. l la radios are 54, 48, 36, 24, 18, 12, 9, and 6 Mbps.
Association data can also include the domain, and/or any other coverage area sharing access points with this coverage area.
In 240, based at least on the floor plan data, the coverage data, and the capacity data, the quantity, placement, and configuration of WLAN access points are determined.
The configuration of WLAN access points can include mufti-homing for the WLAN
access points. The configuration of the WLAN access points can include power levels for the WLAN access points. Power levels, such as transmit power levels, must be high enough to adequately cover an area, but should not be too high in order to help r educe co-channel interference. The configuration can include channel assignments for the WLAN
access points.
The placement of the WLAN access points can be manually adjustable via computer.
Based at least on such manually adjusted placement of the WLAN, the quantity and/or configuration of the WLAN access points can be determined. Also, based at least on such manually adjusted placement of at least one WLAN access point, the placement of at least one other WLAN access point can be determined. Further, based at least on such manually adjusted placement of at least one WLAN access point, the coverage data andlor the capacity data of the WLAN site can be determined. Manual adjustment by adding/removing/moving access points can help to more adequately cover holes in RF coverage of the WLAN access points.
In some embodiments, at least the quantity and placement of the WLAN access points are displayed.
Also, the quantity and/or the configuration of the WLAN access points can be manually adjustable via computer. Based at least on such manual adjustments, the placement, quantity andlor configuration of the WLAN access points can be determined. Also, based at least on such manual adjustments, the coverage data and/or the capacity data of the WLAN
site can be determined. When defining a coverage area, the coverage area should extend to the inside of external walls, or else the external walls can be accounted for when computing how many access points are required for the coverage area. In some embodiments, even if external walls are included in the coverage area, the access point computation can automatically truncate the coverage area to exclude the external walls.
In some embodiments, preexisting access point data can be received. Based at least on the preexisting access point data, the quantity, placement, and/or configuration of the WLAN
access points can be determined.
Work order data can be generated, based at least on the quantity, the placement, and the configuration of the WLAN access points, and/or based at least on one or more changes for the floor plan data about the WLAN site, the quantity of WLAN access points, the placement of WLAN access points, and/or the configuration of the WLAN access points. The work order data can include installation instructions for the WLAN access points and/or installation instructions .
for one or more distribution system switches connecting the WLAN access points.
Some embodiments can receive wiring closet data. The wiring closet data can indicate one or more locations for one or more distribution system switches and/or other networking devices at the site for the WLAN. The distribution system switches connect the WLAN access points. Based at least partly on the wiring closet data, the quantity, placement, and/or configuration of the WLAN access points can be determined. Connections between the one or more distribution system switches and the WLAN access points can be determined. The wiring closet data can include redundant connection data to the WLAN access points.
The quantity, placement, and/or configuration of the distribution system switches can be determined based at least on the floor plan data, the coverage data, and/or the capacity data. It can be ensured that UTP Cats cabling distances between access points and their respective distribution system switches in wiring closets do not exceed, for example, 100 meters, or 330 feet. The quantity, placement, and/or configuration of one or more distribution system switches connecting the WLAN access points at the WLAN site can be changed based at least on measured WLAN data.
Dual homing of access points can be supported; the same or different distribution system switches can be used.
A group of distribution system switches that work together to support roaming users is a domain. In a domain, one distribution system switch can be defined as a seed device, which can distribute information to the distribution system switches defined in the domain. The domain can allow users to roam geographically from one distribution system switch to another without disruption of network connectivity. As users move from one location to another, their connections to servers can appear the same. When users connect to a distribution system switch in a domain, they connect as a member of a VLAN through their authorized identities. If the native VLAN for users is not present on the distribution system switch to which they connect, the distribution system switch creates a tunnel to that VLAN.
Computer code in various embodiments can be implemented in hardware, software, or a combination of hardware and software.
Figure 3 illustrates a computer 310, which is programmed at least in part by code stored on program media 320. The program media 320 is used to place at least some of the code 325 on the computer 310.
Figure 4 illustrates a computer 410, which is programmed at least in part by code from a network 430. The network 430 is used to place code on the computer 410.
The computer running the code can be integral to or separate from networking elements such as distribution switches, access points, etc.
Claims (60)
1. A method of planning a wireless local area network, comprising:
receiving floor plan data about a site for the wireless local area network;
receiving coverage data about the site for the wireless local area network;
receiving capacity data about the site for the wireless local area network;
and based at least on the floor plan data, the coverage data, and the capacity data, determining quantity, placement, and configuration of a plurality of access points of the wireless local area network.
receiving floor plan data about a site for the wireless local area network;
receiving coverage data about the site for the wireless local area network;
receiving capacity data about the site for the wireless local area network;
and based at least on the floor plan data, the coverage data, and the capacity data, determining quantity, placement, and configuration of a plurality of access points of the wireless local area network.
2. The method of claim 1 wherein the floor plan data is imported.
3. The method of claim 1 wherein the floor plan data is manually drawn via computer.
4. The method of claim 1 wherein objects in the floor plan data are associated with radio frequency attenuation factors.
5. The method of claim 4 wherein objects in the floor plan data are associated with radio frequency attenuation factors that depend on a technology standard of the wireless local area network.
6. The method of claim 1 wherein the coverage data indicates coverage areas of the site serviced by the plurality of access points.
7. The method of claim 6 wherein the coverage data is indicated with at least the floor plan data.
8. The method of claim 6 wherein the coverage data depends on a technology standard of the wireless local area network.
9. The method of claim 8 wherein at least one coverage area supports one or more technology standards of the wireless local area network
10. The method of claim 1 further comprising:
receiving wiring closet data, the wiring closet data indicating one or more locations for one or more distribution system switches at the site for the wireless local area network, the one or more distribution system switches to the plurality of access points.
receiving wiring closet data, the wiring closet data indicating one or more locations for one or more distribution system switches at the site for the wireless local area network, the one or more distribution system switches to the plurality of access points.
11. The method of claim 10 wherein determining quantity, placement, and configuration of the plurality of access points of the wireless local area network is further based at least on the wiring closet data.
12. The method of claim 11 wherein the wiring closet data includes redundant connection data to the plurality of access points.
13. The method of claim 1 further comprising:
based at least on the floor plan data, the coverage data, and the capacity data, determining at least one of quantity, placement, and configuration of one or more distribution system switches at the site for the wireless local area network, the one or more distribution system switches connecting to the plurality of access points.
based at least on the floor plan data, the coverage data, and the capacity data, determining at least one of quantity, placement, and configuration of one or more distribution system switches at the site for the wireless local area network, the one or more distribution system switches connecting to the plurality of access points.
14. The method of claim 13 further comprising:
determining connections between the one or more distribution system switches and the plurality of access points.
determining connections between the one or more distribution system switches and the plurality of access points.
15. The method of claim 1 wherein the capacity data includes one or more throughput rates for stations serviced by the plurality of access points.
16. The method of claim 1 wherein the capacity data includes one or mor a average desired association rates for stations serviced by the plurality of access points.
17. The method of claim 1 wherein the capacity data includes one or more quantities of stations serviced by the plurality of access points.
18. The method of claim 17 wherein the capacity data includes one or more quantities of active stations serviced by the plurality of access points.
19. The method of claim 17 wherein the capacity data includes one or more quantities of total stations serviced by the plurality of access points.
20. The method of claim 1 further comprising:
receiving association data.
receiving association data.
21. The method of claim 20 wherein determining quantity, placement, and configuration of the plurality of access points of the wireless local area network is further based at least on the association data.
22. The method of claim 20 wherein the association data includes allowable channels for the plurality of access points.
23. The method of claim 20 wherein the association data includes one or more minimum rates for beacons of the plurality of access points.
24. The method of claim 20 wherein the association data includes one or more minimum rates for probe responses of the plurality of access points.
25. The method of claim 1 wherein the configuration of the plurality of access points of the wireless local area network determined based at least on the floor plan data, the coverage data, and the capacity data, includes multi-homing for the plurality of access points.
26. The method of claim 1 wherein the configuration of the plurality of access points of the wireless local area network determined based at least on the floor plan data, the coverage data, and the capacity data, includes power levels for the plurality of access points.
27. The method of claim 1 wherein the configuration of the plurality of access points of the wireless local area network determined based at least on the floor plan data, the coverage data, and the capacity data, includes channel assignments for the plurality of access points.
28. The method of claim 1 wherein the placement of the plurality of access points of the wireless local area network determined based at least on the floor plan data, the coverage data, and the capacity data, is manually adjustable via computer.
29. The method of claim 28 further comprising:
based at least on manually adjusted placement of the wireless local area network, determining at least one of the quantity and the configuration of the plurality of access points.
based at least on manually adjusted placement of the wireless local area network, determining at least one of the quantity and the configuration of the plurality of access points.
30. The method of claim 28 further comprising:
based at least on manually adjusted placement of at least one access point of the wireless local area network, determining the placement of at least one other access point of the plurality of access points.
based at least on manually adjusted placement of at least one access point of the wireless local area network, determining the placement of at least one other access point of the plurality of access points.
31. The method of claim 28 further comprising:
based at least on manually adjusted placement of at least one access point of the wireless local area network, determining at least one of the coverage data and the capacity data of the site for the wireless local area network.
based at least on manually adjusted placement of at least one access point of the wireless local area network, determining at least one of the coverage data and the capacity data of the site for the wireless local area network.
32. The method of claim 1 further comprising:
displaying at least the quantity and the placement of the plurality of access points of the wireless local area network.
displaying at least the quantity and the placement of the plurality of access points of the wireless local area network.
33. The method of claim 1 further comprising:
permitting manual adjustments via computer to one or more of the quantity and the configuration of the plurality of access points of the wireless local area network.
permitting manual adjustments via computer to one or more of the quantity and the configuration of the plurality of access points of the wireless local area network.
34. The method of claim 33 further comprising:
based at least on the manual adjustments, determining at least one of the quantity, the placement, and the configuration of the plurality of access points.
based at least on the manual adjustments, determining at least one of the quantity, the placement, and the configuration of the plurality of access points.
35. The method of claim 33 further comprising:
based at least on manual adjustments, determining at least one of the coverage data and the capacity data of the site for the wireless local area network.
based at least on manual adjustments, determining at least one of the coverage data and the capacity data of the site for the wireless local area network.
36. The method of claim 1 further comprising:
receiving preexisting access point data.
receiving preexisting access point data.
37. The method of claim 36 wherein determining quantity, placement, and configuration of the plurality of access points of the wireless local area network is further based at least on the preexisting access point data.
38. The method of claim 1 further comprising:
generating work order data based at least on the quantity, the placement, and the configuration of the plurality of access points of the wireless local area network.
generating work order data based at least on the quantity, the placement, and the configuration of the plurality of access points of the wireless local area network.
39. The method of claim 38 wherein the work order data includes installation instructions for the plurality of access points of the wireless local area network.
40. The method of claim 39 wherein the work order data includes installation instructions for one or more distribution system switches connecting to the plurality of access points of the wireless local area network.
41. The method of claim 1 further comprising:
pushing distribution system switch configurations to one or more distribution system switches at the site for the wireless local area network, the one or more distribution system switches connecting to the plurality of access points.
pushing distribution system switch configurations to one or more distribution system switches at the site for the wireless local area network, the one or more distribution system switches connecting to the plurality of access points.
42. The method of claim 41 wherein the distribution system switch configurations include management settings.
43. The method of claim 42 wherein the management settings include one or more of HTTPS settings, telnet settings, SNMP settings, logging settings, and time zone settings.
44. The method of claim 41 wherein the distribution system switch configurations include IP
service settings.
service settings.
45. The method of claim 44 wherein the IP service settings include one or more of static route settings, IP alias settings, DNS settings, and NTP settings.
46. The method of claim 41 wherein the distribution system switch configurations include authentication settings.
47. The method of claim 41 wherein the distribution system switch configurations include distribution system switch port settings.
48. The method of claim 37 wherein the distribution system switch port settings includes settings for distribution system switch ports connected to access points of the plurality of access points.
49. The method of claim 41 wherein the distribution system switch configurations include distribution system switch VLAN settings.
50. The method of claim 49 wherein the ULAN settings include one or more of VLAN name settings, tunnel affinity settings, IP address settings, aging time settings, distribution system switch port ULAN settings, STP settings, IGMP settings, and static multicast port settings.
51. The method of claim 50 wherein the distribution system switch port VLAN
settings specify membership of distribution system switch ports in VLANs.
settings specify membership of distribution system switch ports in VLANs.
52. The method of claim 1 further comprising:
pushing access point configurations to one or more access points of the plurality of access points.
pushing access point configurations to one or more access points of the plurality of access points.
53. The method of claim 52 wherein the access point configurations include SSID settings.
54. The method of claim 53 wherein the SSID settings include at least one of beaconed SSID settings, encrypted data SSID settings, and unencrypted data SSID
settings.
settings.
55. The method of claim 52 wherein the access point configurations include encryption settings.
56. The method of claim 55 wherein the encryption settings include at least one of encryption standard settings and encryption key settings.
57. The method of claim 52 wherein the access point configurations include 802.11 settings.
58. The method of claim 53 wherein the 802.11 settings include at least one of beacon interval settings, DTIM period settings, fragment threshold settings, long retry limit settings, maximum send lifetime settings, maximum receive lifetime settings, RTS/CTS
settings, short retry limit settings, preamble settings, transmit power settings, channel number settings, and minimum transmit rate settings.
settings, short retry limit settings, preamble settings, transmit power settings, channel number settings, and minimum transmit rate settings.
59. Code planning a wireless local area network, comprising:
code that performs receiving floor plan data about a site for the wireless local area network;
code that performs receiving coverage data about the site for the wireless local area network;
code that performs receiving capacity data about the site for the wireless local area network; and code that performs, based at least on the floor plan data, the coverage data, and the capacity data, determining quantity, placement, and configuration of a plurality of access points of the wireless local area network.
code that performs receiving floor plan data about a site for the wireless local area network;
code that performs receiving coverage data about the site for the wireless local area network;
code that performs receiving capacity data about the site for the wireless local area network; and code that performs, based at least on the floor plan data, the coverage data, and the capacity data, determining quantity, placement, and configuration of a plurality of access points of the wireless local area network.
60. An apparatus planning a wireless local area network, comprising:
means for receiving floor plan data about a site for the wireless local area network;
means for receiving coverage data about the site for the wireless local area network;
means for receiving capacity data about the site for the wireless local area network; and means for, based at least on the floor plan data, the coverage data, and the capacity data, determining quantity, placement, and configuration of a plurality of access points of the wireless local area network.
means for receiving floor plan data about a site for the wireless local area network;
means for receiving coverage data about the site for the wireless local area network;
means for receiving capacity data about the site for the wireless local area network; and means for, based at least on the floor plan data, the coverage data, and the capacity data, determining quantity, placement, and configuration of a plurality of access points of the wireless local area network.
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Families Citing this family (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8483717B2 (en) | 2003-06-27 | 2013-07-09 | Qualcomm Incorporated | Local area network assisted positioning |
US8971913B2 (en) | 2003-06-27 | 2015-03-03 | Qualcomm Incorporated | Method and apparatus for wireless network hybrid positioning |
US20050073980A1 (en) * | 2003-09-17 | 2005-04-07 | Trapeze Networks, Inc. | Wireless LAN management |
US7221927B2 (en) * | 2004-02-13 | 2007-05-22 | Trapeze Networks, Inc. | Station mobility between access points |
US7319878B2 (en) | 2004-06-18 | 2008-01-15 | Qualcomm Incorporated | Method and apparatus for determining location of a base station using a plurality of mobile stations in a wireless mobile network |
US20060094375A1 (en) * | 2004-11-03 | 2006-05-04 | Mcginley Robert | Portable survey inspection device |
DE112006000618T5 (en) | 2005-03-15 | 2008-02-07 | Trapeze Networks, Inc., Pleasanton | System and method for distributing keys in a wireless network |
US7551574B1 (en) * | 2005-03-31 | 2009-06-23 | Trapeze Networks, Inc. | Method and apparatus for controlling wireless network access privileges based on wireless client location |
US20070049323A1 (en) * | 2005-08-25 | 2007-03-01 | Research In Motion Limited | Rogue access point detection and restriction |
US7558592B2 (en) * | 2005-09-01 | 2009-07-07 | Cisco Technology, Inc. | Radio planning for WLANS |
US7580399B2 (en) | 2005-09-14 | 2009-08-25 | Cisco Technology, Inc. | Automatic partitioning of wireless access points into overlay and underlay networks |
US7551619B2 (en) * | 2005-10-13 | 2009-06-23 | Trapeze Networks, Inc. | Identity-based networking |
US7573859B2 (en) | 2005-10-13 | 2009-08-11 | Trapeze Networks, Inc. | System and method for remote monitoring in a wireless network |
US7724703B2 (en) | 2005-10-13 | 2010-05-25 | Belden, Inc. | System and method for wireless network monitoring |
US8638762B2 (en) | 2005-10-13 | 2014-01-28 | Trapeze Networks, Inc. | System and method for network integrity |
WO2007044986A2 (en) * | 2005-10-13 | 2007-04-19 | Trapeze Networks, Inc. | System and method for remote monitoring in a wireless network |
US8250587B2 (en) * | 2005-10-27 | 2012-08-21 | Trapeze Networks, Inc. | Non-persistent and persistent information setting method and system for inter-process communication |
US20070106998A1 (en) * | 2005-10-27 | 2007-05-10 | Zeldin Paul E | Mobility system and method for messaging and inter-process communication |
CN106054129A (en) * | 2005-11-07 | 2016-10-26 | 高通股份有限公司 | Positioning for wlans and other wireless networks |
RU2390791C2 (en) | 2005-11-07 | 2010-05-27 | Квэлкомм Инкорпорейтед | Positioning for wlan and other wireless networks |
US7558266B2 (en) | 2006-05-03 | 2009-07-07 | Trapeze Networks, Inc. | System and method for restricting network access using forwarding databases |
US20070260720A1 (en) * | 2006-05-03 | 2007-11-08 | Morain Gary E | Mobility domain |
US8966018B2 (en) | 2006-05-19 | 2015-02-24 | Trapeze Networks, Inc. | Automated network device configuration and network deployment |
US20070268506A1 (en) * | 2006-05-19 | 2007-11-22 | Paul Zeldin | Autonomous auto-configuring wireless network device |
US20070268514A1 (en) * | 2006-05-19 | 2007-11-22 | Paul Zeldin | Method and business model for automated configuration and deployment of a wireless network in a facility without network administrator intervention |
US20070268516A1 (en) * | 2006-05-19 | 2007-11-22 | Jamsheed Bugwadia | Automated policy-based network device configuration and network deployment |
US20070268515A1 (en) * | 2006-05-19 | 2007-11-22 | Yun Freund | System and method for automatic configuration of remote network switch and connected access point devices |
US7577453B2 (en) * | 2006-06-01 | 2009-08-18 | Trapeze Networks, Inc. | Wireless load balancing across bands |
US8818322B2 (en) | 2006-06-09 | 2014-08-26 | Trapeze Networks, Inc. | Untethered access point mesh system and method |
US9258702B2 (en) * | 2006-06-09 | 2016-02-09 | Trapeze Networks, Inc. | AP-local dynamic switching |
US7912982B2 (en) * | 2006-06-09 | 2011-03-22 | Trapeze Networks, Inc. | Wireless routing selection system and method |
US9191799B2 (en) | 2006-06-09 | 2015-11-17 | Juniper Networks, Inc. | Sharing data between wireless switches system and method |
US7844298B2 (en) * | 2006-06-12 | 2010-11-30 | Belden Inc. | Tuned directional antennas |
US7724704B2 (en) * | 2006-07-17 | 2010-05-25 | Beiden Inc. | Wireless VLAN system and method |
US8340110B2 (en) | 2006-09-15 | 2012-12-25 | Trapeze Networks, Inc. | Quality of service provisioning for wireless networks |
US8072952B2 (en) | 2006-10-16 | 2011-12-06 | Juniper Networks, Inc. | Load balancing |
US20080107077A1 (en) * | 2006-11-03 | 2008-05-08 | James Murphy | Subnet mobility supporting wireless handoff |
US9226257B2 (en) | 2006-11-04 | 2015-12-29 | Qualcomm Incorporated | Positioning for WLANs and other wireless networks |
US20080151844A1 (en) * | 2006-12-20 | 2008-06-26 | Manish Tiwari | Wireless access point authentication system and method |
US7865713B2 (en) * | 2006-12-28 | 2011-01-04 | Trapeze Networks, Inc. | Application-aware wireless network system and method |
US7873061B2 (en) | 2006-12-28 | 2011-01-18 | Trapeze Networks, Inc. | System and method for aggregation and queuing in a wireless network |
US20080182583A1 (en) * | 2007-01-31 | 2008-07-31 | Symbol Technologies, Inc. | Methods and apparatus for determining optimal rf transmitter placement via a coverage metric |
JP2010518700A (en) * | 2007-01-31 | 2010-05-27 | シンボル テクノロジーズ インコーポレイテッド | Method and apparatus for optimal RF transmitter placement |
US20090005102A1 (en) * | 2007-06-30 | 2009-01-01 | Suman Das | Method and Apparatus for Dynamically Adjusting Base Station Transmit Power |
US8902904B2 (en) | 2007-09-07 | 2014-12-02 | Trapeze Networks, Inc. | Network assignment based on priority |
US8509128B2 (en) * | 2007-09-18 | 2013-08-13 | Trapeze Networks, Inc. | High level instruction convergence function |
US8238942B2 (en) | 2007-11-21 | 2012-08-07 | Trapeze Networks, Inc. | Wireless station location detection |
US8150357B2 (en) | 2008-03-28 | 2012-04-03 | Trapeze Networks, Inc. | Smoothing filter for irregular update intervals |
US8474023B2 (en) | 2008-05-30 | 2013-06-25 | Juniper Networks, Inc. | Proactive credential caching |
US8978105B2 (en) * | 2008-07-25 | 2015-03-10 | Trapeze Networks, Inc. | Affirming network relationships and resource access via related networks |
US8238298B2 (en) | 2008-08-29 | 2012-08-07 | Trapeze Networks, Inc. | Picking an optimal channel for an access point in a wireless network |
FR2942930A1 (en) * | 2009-03-05 | 2010-09-10 | Thomson Licensing | METHOD FOR CONFIGURING A WIRELESS NETWORK |
CN102056180B (en) | 2009-10-27 | 2013-12-18 | 华为技术有限公司 | Method and system for acquiring deployment scheme of wireless local area network (WLAN) access point (AP) |
US8744352B2 (en) * | 2010-11-22 | 2014-06-03 | Juniper Networks, Inc. | Automatic access point location, planning, and coverage optimization |
CN102186182B (en) * | 2011-05-05 | 2014-03-12 | 中国联合网络通信集团有限公司 | Comprehensive network plan management system and method |
CN104412637A (en) | 2012-06-29 | 2015-03-11 | 惠普发展公司,有限责任合伙企业 | Generation of access point configuration change based on a generated coverage monitor |
CN103209422B (en) * | 2013-03-19 | 2015-12-09 | 北京拓明科技有限公司 | The method of the accurate reconnaissance of a kind of wlan network |
CN104519509A (en) * | 2013-09-29 | 2015-04-15 | 索尼公司 | Wireless network monitoring device in wireless communication system, method used in wireless communication system and device in wireless communication system |
CN104053215B (en) * | 2014-06-11 | 2018-04-17 | 西安中兴新软件有限责任公司 | A kind of method and device of the optimum position of selection access point |
CN105554774B (en) * | 2014-10-31 | 2019-04-23 | 富士通株式会社 | Wireless network deployment method and device |
CN105744536A (en) * | 2014-12-09 | 2016-07-06 | 富士通株式会社 | Wireless network deployment method and device |
BR102016005371B1 (en) * | 2016-03-10 | 2021-03-16 | Vale S/A | wireless network planning method |
PL3367721T3 (en) | 2017-02-22 | 2022-01-17 | Liberty Global Europe Holding B.V. | Method for determining deployment parameters of customer premises equipment |
US11849336B2 (en) | 2019-07-24 | 2023-12-19 | Huawei Technologies Co., Ltd. | Wireless access point deployment method and apparatus |
CN112312410B (en) * | 2019-07-24 | 2022-04-12 | 华为技术有限公司 | Deployment method and device of wireless access point |
US10834688B1 (en) * | 2019-08-28 | 2020-11-10 | International Business Machines Corporation | Wireless cross-connect datacenter |
CN111510932A (en) * | 2020-03-21 | 2020-08-07 | 杭州迪普科技股份有限公司 | Wireless access point deployment method and device, electronic equipment and computer readable medium |
US11445041B2 (en) * | 2020-12-24 | 2022-09-13 | Nile Global, Inc. | Methods and systems of service area based network device configuration |
Family Cites Families (97)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3641433A (en) * | 1969-06-09 | 1972-02-08 | Us Air Force | Transmitted reference synchronization system |
FR2386211A1 (en) * | 1977-03-31 | 1978-10-27 | Europ Teletransmission | DIGITAL COMMUNICATION SYSTEM |
US4291409A (en) * | 1978-06-20 | 1981-09-22 | The Mitre Corporation | Spread spectrum communications method and apparatus |
CH622661B (en) * | 1978-11-30 | Ebauches Bettlach Sa | DEVICE FOR FIXING A WATCHMAKING DIAL ON THE PLATE OF A WATCH MOVEMENT. | |
US4247908A (en) * | 1978-12-08 | 1981-01-27 | Motorola, Inc. | Re-linked portable data terminal controller system |
US4730340A (en) * | 1980-10-31 | 1988-03-08 | Harris Corp. | Programmable time invariant coherent spread symbol correlator |
US4503533A (en) * | 1981-08-20 | 1985-03-05 | Stanford University | Local area communication network utilizing a round robin access scheme with improved channel utilization |
US4500987A (en) * | 1981-11-24 | 1985-02-19 | Nippon Electric Co., Ltd. | Loop transmission system |
US4475208A (en) * | 1982-01-18 | 1984-10-02 | Ricketts James A | Wired spread spectrum data communication system |
US4673805A (en) * | 1982-01-25 | 1987-06-16 | Symbol Technologies, Inc. | Narrow-bodied, single- and twin-windowed portable scanning head for reading bar code symbols |
US4460120A (en) * | 1982-01-25 | 1984-07-17 | Symbol Technologies, Inc. | Narrow bodied, single- and twin-windowed portable laser scanning head for reading bar code symbols |
US4758717A (en) * | 1982-01-25 | 1988-07-19 | Symbol Technologies, Inc. | Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols |
US4409470A (en) * | 1982-01-25 | 1983-10-11 | Symbol Technologies, Inc. | Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols |
US4736095A (en) * | 1982-01-25 | 1988-04-05 | Symbol Technologies, Inc. | Narrow-bodied, single- and twin-windowed portable laser scanning head for reading bar code symbols |
US4494238A (en) * | 1982-06-30 | 1985-01-15 | Motorola, Inc. | Multiple channel data link system |
US4550414A (en) * | 1983-04-12 | 1985-10-29 | Charles Stark Draper Laboratory, Inc. | Spread spectrum adaptive code tracker |
US4644523A (en) * | 1984-03-23 | 1987-02-17 | Sangamo Weston, Inc. | System for improving signal-to-noise ratio in a direct sequence spread spectrum signal receiver |
US4639914A (en) * | 1984-12-06 | 1987-01-27 | At&T Bell Laboratories | Wireless PBX/LAN system with optimum combining |
JPH0693670B2 (en) * | 1984-12-29 | 1994-11-16 | 京セラ株式会社 | Spread spectrum communication system |
US4635221A (en) * | 1985-01-18 | 1987-01-06 | Allied Corporation | Frequency multiplexed convolver communication system |
US4672658A (en) * | 1985-10-16 | 1987-06-09 | At&T Company And At&T Bell Laboratories | Spread spectrum wireless PBX |
US4850009A (en) * | 1986-05-12 | 1989-07-18 | Clinicom Incorporated | Portable handheld terminal including optical bar code reader and electromagnetic transceiver means for interactive wireless communication with a base communications station |
IL82561A (en) * | 1986-05-27 | 1991-12-15 | Fairchild Weston Systems Inc | Secure communication system for multiple remote units |
US4740792A (en) * | 1986-08-27 | 1988-04-26 | Hughes Aircraft Company | Vehicle location system |
US4901307A (en) * | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
JPH0671241B2 (en) * | 1987-09-10 | 1994-09-07 | 株式会社ケンウッド | Initial synchronization method for spread spectrum communication |
US4894842A (en) * | 1987-10-15 | 1990-01-16 | The Charles Stark Draper Laboratory, Inc. | Precorrelation digital spread spectrum receiver |
US4872182A (en) * | 1988-03-08 | 1989-10-03 | Harris Corporation | Frequency management system for use in multistation H.F. communication network |
FR2629931B1 (en) * | 1988-04-08 | 1991-01-25 | Lmt Radio Professionelle | ASYNCHRONOUS DIGITAL CORRELATOR AND DEMODULATORS COMPRISING SUCH A CORRELATOR |
US5483676A (en) * | 1988-08-04 | 1996-01-09 | Norand Corporation | Mobile radio data communication system and method |
US5815811A (en) * | 1989-06-29 | 1998-09-29 | Symbol Technologies, Inc. | Preemptive roaming in a cellular local area wireless network |
US5157687A (en) * | 1989-06-29 | 1992-10-20 | Symbol Technologies, Inc. | Packet data communication network |
US5280498A (en) * | 1989-06-29 | 1994-01-18 | Symbol Technologies, Inc. | Packet data communication system |
US5029183A (en) * | 1989-06-29 | 1991-07-02 | Symbol Technologies, Inc. | Packet data communication network |
US5142550A (en) * | 1989-06-29 | 1992-08-25 | Symbol Technologies, Inc. | Packet data communication system |
US5103461A (en) * | 1989-06-29 | 1992-04-07 | Symbol Technologies, Inc. | Signal quality measure in packet data communication |
US5668803A (en) * | 1989-06-29 | 1997-09-16 | Symbol Technologies, Inc. | Protocol for packet data communication system |
US5528621A (en) * | 1989-06-29 | 1996-06-18 | Symbol Technologies, Inc. | Packet data communication system |
JP2660441B2 (en) * | 1989-07-03 | 1997-10-08 | 双葉電子工業 株式会社 | Receiver for spread spectrum communication |
US5109390A (en) * | 1989-11-07 | 1992-04-28 | Qualcomm Incorporated | Diversity receiver in a cdma cellular telephone system |
US5187575A (en) * | 1989-12-29 | 1993-02-16 | Massachusetts Institute Of Technology | Source adaptive television system |
US4955053A (en) * | 1990-03-16 | 1990-09-04 | Reliance Comm/Tec Corporation | Solid state ringing switch |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5231633A (en) * | 1990-07-11 | 1993-07-27 | Codex Corporation | Method for prioritizing, selectively discarding, and multiplexing differing traffic type fast packets |
US5151919A (en) * | 1990-12-17 | 1992-09-29 | Ericsson-Ge Mobile Communications Holding Inc. | Cdma subtractive demodulation |
FI100043B (en) * | 1992-01-23 | 1997-08-29 | Nokia Telecommunications Oy | Cellular radio network design method and system |
US5267261A (en) * | 1992-03-05 | 1993-11-30 | Qualcomm Incorporated | Mobile station assisted soft handoff in a CDMA cellular communications system |
US5896561A (en) * | 1992-04-06 | 1999-04-20 | Intermec Ip Corp. | Communication network having a dormant polling protocol |
US5418812A (en) * | 1992-06-26 | 1995-05-23 | Symbol Technologies, Inc. | Radio network initialization method and apparatus |
US5285494A (en) * | 1992-07-31 | 1994-02-08 | Pactel Corporation | Network management system |
GB9304636D0 (en) * | 1993-03-06 | 1993-04-21 | Ncr Int Inc | A method of accessing a communication system |
AU6921694A (en) * | 1993-06-07 | 1995-01-03 | Telecom Technologies Pty Ltd | Communication system |
US5491644A (en) * | 1993-09-07 | 1996-02-13 | Georgia Tech Research Corporation | Cell engineering tool and methods |
US5598532A (en) * | 1993-10-21 | 1997-01-28 | Optimal Networks | Method and apparatus for optimizing computer networks |
US5488569A (en) * | 1993-12-20 | 1996-01-30 | At&T Corp. | Application-oriented telecommunication system interface |
US5450615A (en) * | 1993-12-22 | 1995-09-12 | At&T Corp. | Prediction of indoor electromagnetic wave propagation for wireless indoor systems |
US5517495A (en) * | 1994-12-06 | 1996-05-14 | At&T Corp. | Fair prioritized scheduling in an input-buffered switch |
US5519762A (en) * | 1994-12-21 | 1996-05-21 | At&T Corp. | Adaptive power cycling for a cordless telephone |
US5915214A (en) * | 1995-02-23 | 1999-06-22 | Reece; Richard W. | Mobile communication service provider selection system |
US5630207A (en) * | 1995-06-19 | 1997-05-13 | Lucent Technologies Inc. | Methods and apparatus for bandwidth reduction in a two-way paging system |
JP2771478B2 (en) * | 1995-06-20 | 1998-07-02 | 静岡日本電気株式会社 | Wireless selective call receiver with display function |
US5649289A (en) * | 1995-07-10 | 1997-07-15 | Motorola, Inc. | Flexible mobility management in a two-way messaging system and method therefor |
JPH0936799A (en) * | 1995-07-21 | 1997-02-07 | Toshiba Corp | Radio communication equipment |
US5794128A (en) * | 1995-09-20 | 1998-08-11 | The United States Of America As Represented By The Secretary Of The Army | Apparatus and processes for realistic simulation of wireless information transport systems |
US6580700B1 (en) * | 1995-10-27 | 2003-06-17 | Symbol Technologies, Inc. | Data rate algorithms for use in wireless local area networks |
US5920821A (en) * | 1995-12-04 | 1999-07-06 | Bell Atlantic Network Services, Inc. | Use of cellular digital packet data (CDPD) communications to convey system identification list data to roaming cellular subscriber stations |
US5933420A (en) * | 1996-04-30 | 1999-08-03 | 3Com Corporation | Method and apparatus for assigning spectrum of a wireless local area network |
US6088591A (en) * | 1996-06-28 | 2000-07-11 | Aironet Wireless Communications, Inc. | Cellular system hand-off protocol |
US5949988A (en) * | 1996-07-16 | 1999-09-07 | Lucent Technologies Inc. | Prediction system for RF power distribution |
US5875179A (en) * | 1996-10-29 | 1999-02-23 | Proxim, Inc. | Method and apparatus for synchronized communication over wireless backbone architecture |
US6011784A (en) * | 1996-12-18 | 2000-01-04 | Motorola, Inc. | Communication system and method using asynchronous and isochronous spectrum for voice and data |
US6240083B1 (en) * | 1997-02-25 | 2001-05-29 | Telefonaktiebolaget L.M. Ericsson | Multiple access communication network with combined contention and reservation mode access |
US6078568A (en) * | 1997-02-25 | 2000-06-20 | Telefonaktiebolaget Lm Ericsson | Multiple access communication network with dynamic access control |
JPH10261980A (en) * | 1997-03-18 | 1998-09-29 | Fujitsu Ltd | Base station unit for radio communication network, communication control method for radio communication network, radio communication network system and radio terminal |
US6199032B1 (en) * | 1997-07-23 | 2001-03-06 | Edx Engineering, Inc. | Presenting an output signal generated by a receiving device in a simulated communication system |
EP0898434B1 (en) * | 1997-08-20 | 2004-05-26 | NEC USA, Inc. | ATM switching architecture for a wireless telecommunications network |
US6119009A (en) * | 1997-09-18 | 2000-09-12 | Lucent Technologies, Inc. | Method and apparatus for modeling the propagation of wireless signals in buildings |
US5953669A (en) * | 1997-12-11 | 1999-09-14 | Motorola, Inc. | Method and apparatus for predicting signal characteristics in a wireless communication system |
US6356758B1 (en) * | 1997-12-31 | 2002-03-12 | Nortel Networks Limited | Wireless tools for data manipulation and visualization |
US6594238B1 (en) * | 1998-06-19 | 2003-07-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for dynamically adapting a connection state in a mobile communications system |
US6160804A (en) * | 1998-11-13 | 2000-12-12 | Lucent Technologies Inc. | Mobility management for a multimedia mobile network |
US6336035B1 (en) * | 1998-11-19 | 2002-01-01 | Nortel Networks Limited | Tools for wireless network planning |
US6218930B1 (en) * | 1999-03-10 | 2001-04-17 | Merlot Communications | Apparatus and method for remotely powering access equipment over a 10/100 switched ethernet network |
US6208841B1 (en) * | 1999-05-03 | 2001-03-27 | Qualcomm Incorporated | Environmental simulator for a wireless communication device |
US6285662B1 (en) * | 1999-05-14 | 2001-09-04 | Nokia Mobile Phones Limited | Apparatus, and associated method for selecting a size of a contention window for a packet of data system |
US6393290B1 (en) * | 1999-06-30 | 2002-05-21 | Lucent Technologies Inc. | Cost based model for wireless architecture |
US6512916B1 (en) * | 2000-02-23 | 2003-01-28 | America Connect, Inc. | Method for selecting markets in which to deploy fixed wireless communication systems |
US6404772B1 (en) * | 2000-07-27 | 2002-06-11 | Symbol Technologies, Inc. | Voice and data wireless communications network and method |
US6625454B1 (en) * | 2000-08-04 | 2003-09-23 | Wireless Valley Communications, Inc. | Method and system for designing or deploying a communications network which considers frequency dependent effects |
US6687498B2 (en) * | 2000-08-14 | 2004-02-03 | Vesuvius Inc. | Communique system with noncontiguous communique coverage areas in cellular communication networks |
US6879812B2 (en) * | 2002-02-08 | 2005-04-12 | Networks Associates Technology Inc. | Portable computing device and associated method for analyzing a wireless local area network |
US7509096B2 (en) * | 2002-07-26 | 2009-03-24 | Broadcom Corporation | Wireless access point setup and management within wireless local area network |
US7295960B2 (en) * | 2003-01-22 | 2007-11-13 | Wireless Valley Communications, Inc. | System and method for automated placement or configuration of equipment for obtaining desired network performance objectives |
US20040259555A1 (en) * | 2003-04-23 | 2004-12-23 | Rappaport Theodore S. | System and method for predicting network performance and position location using multiple table lookups |
US20050073980A1 (en) * | 2003-09-17 | 2005-04-07 | Trapeze Networks, Inc. | Wireless LAN management |
US20050059406A1 (en) * | 2003-09-17 | 2005-03-17 | Trapeze Networks, Inc. | Wireless LAN measurement feedback |
US7221927B2 (en) * | 2004-02-13 | 2007-05-22 | Trapeze Networks, Inc. | Station mobility between access points |
-
2003
- 2003-09-17 US US10/667,027 patent/US20050059405A1/en not_active Abandoned
-
2004
- 2004-09-17 JP JP2006527112A patent/JP2007506376A/en not_active Withdrawn
- 2004-09-17 EP EP04809774A patent/EP1665837A2/en not_active Withdrawn
- 2004-09-17 WO PCT/US2004/030769 patent/WO2005027393A2/en active Application Filing
- 2004-09-17 CA CA002538331A patent/CA2538331A1/en not_active Abandoned
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EP1665837A2 (en) | 2006-06-07 |
JP2007506376A (en) | 2007-03-15 |
WO2005027393A3 (en) | 2005-12-01 |
WO2005027393A2 (en) | 2005-03-24 |
US20050059405A1 (en) | 2005-03-17 |
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