摘要:
Methods and systems are provided for determining the location of a first wireless device (e.g., a mobile unit) within a wireless network comprising a plurality of second wireless devices (e.g., access points). The method includes identifying an overlap area corresponding to the intersection of RF ranges for the one or more second wireless devices then computing a set of signal strength values, each associated with a measure of RF signal strength (e.g., RSSI) received by the plurality of second wireless devices from the first wireless device. A decision metric is evaluated for a plurality of locations within the overlap area based on the set of signal strength values. The location of the first wireless device is determined by selecting, from the plurality of locations, a location having the optimum value of the decision metric within the overlap area. The decision metric may utilize a minimum mean square error (MMSE) calculation. A weighting function may be used to remove redundant or weak signal strength values. The systems and methods are applicable, for example, to networks operating in accordance with 802.11, RFID, WiMax, WAN, Bluetooth, Zigbee, UWB, and the like.
摘要:
Methods and systems are provided for determining the location of a first wireless device (e.g., a mobile unit) within a wireless network comprising a second wireless device (e.g., an access point). The method includes determining a signal strength contour associated with RF communication between the access point and the mobile unit, and adding a correction factor to the signal strength contour to produce a corrected signal strength contour, wherein the correction factor includes the sums of the differences between the transmit power and the antenna gain associated with the mobile unit and the access point. In an alternate scheme involving stored fingerprint data, a correction factor is introduced based on the differences between antenna gains and transmit power associated with the mobile unit under consideration and the mobile unit used for generating the fingerprint data. The systems and methods disclosed herein are applicable, for example, to networks operating in accordance with 802.11, RFID, WiMax, WAN, Bluetooth, Zigbee, UWB, and the like.
摘要:
A method is used to fix wireless network problems. The method comprises receiving at least one parameter relating to a wireless network. The method comprises comparing the at least one parameter with a database of problem identities. Each problem identity has a set of criteria. The at least one parameter relates to the set of criteria. The method comprises determining at least one problem with the wireless network based on the comparison of the at least one parameter with the problem identities.
摘要:
A method for displaying RF coverage information includes providing formatting data for displaying the radio frequency coverage information on a client. The formatting data is executed on the client. First radio frequency coverage raw data is provided to the client. The first radio frequency coverage raw data is utilized by the formatting data to construct an overall radio frequency coverage representation of a site. Subject to a subsequent request from the client, second radio frequency coverage raw data representative of radio frequency coverage is provided for a portion of the site. The second radio frequency coverage raw data is utilized by the formatting data on a supplemental basis.
摘要:
A wireless network architecture planning system and related operating methods are disclosed herein. The planning system generates a report for a recommended wireless network architecture for a proposed floor plan, where the report contains product identifier codes (e.g., SKUs) for wireless infrastructure components and related accessories. An embodiment of the planning system executes a computer-implemented method that receives floor plan data corresponding to the site, produces a proposed wireless network architecture for the site, obtains product identifier codes corresponding to wireless infrastructure components needed to deploy the recommended wireless network architecture, and generates a report that lists the product identifier codes.
摘要:
Methods and systems for controlling mobile unit access to network services based on the location of the mobile unit are disclosed. One system includes determining if the mobile unit is located within an area and enabling access to the network services, by the mobile unit, in response to determining that the mobile unit is located within the area. A system includes a reader configured to determine if a mobile unit is located within the area and a switch coupled to the reader. The switch is configured to provide access to the network services, to the mobile unit, in response to the reader determining that the mobile unit is located within the area. An apparatus includes means for determining if a mobile unit is located within the area and means for enabling the mobile unit to access the network services in response thereto.
摘要:
A wireless data communication system and related operating methods are provided. The system uses active radio frequency (RF) tags to communicate content data to consumer-grade wireless telecommunication devices, in accordance with a wireless local area network (WLAN) protocol. A method of wirelessly providing information to a consumer-grade wireless telephone begins by providing data content to an active RF tag. The active RF tag creates a content message that conveys the data content, and wirelessly transmits the content message in accordance with a designated WLAN data communication protocol. The wireless telephone wirelessly receives the content message in accordance with the WLAN data communication protocol, and then displays indicia of the data content.
摘要:
Described are device and method for sensing and locating cellular phones. The device may include (a) a sensor receiving broadcasts from activated cellular phones disposed in a predetermined area, the cellular phones being unassociated with the device; and (b) a processor coupled to the sensor to receive the broadcasts. The processor processes the broadcasts to determine a presence of each of the cellular phones.
摘要:
Methods and systems are provided for determining the location of an RFID reader within an environment having a plurality of RFID tags located therein. One method includes activating a tag via an RFID reader and receiving data from an RFID tag. The method also includes transmitting the data from the reader to an access port and determining the location of the reader based on the data. A system includes an RFID tag configured to transmit data when activated by an RFID reader. Furthermore, the system includes an access port configured to receive the data from the reader and a module configured to receive the data and determine the location of the reader based on the data. One RFID reader includes means for activating an RFID tag including data identifying a location of the tag, means for receiving the data, and means for transmitting the data to an access port.
摘要:
A method is used for deployment of a wireless infrastructure. The method comprises deploying a plurality of access ports in a facility based on a layout that depends on a type of the facility. The method comprises receiving at least one parameter from at least one of the plurality of access points. The method comprises dynamically determining settings of the plurality of access points based on the at least one parameter.