107 results about "Coverage map" patented technology

A system produces of an empirical map of wireless communication coverage through a process of combining information from individual clients to produce a map which is then shared by all of the clients. The wireless coverage map aids in maintaining a reliable communications link. The empirical map is generated by combining information from a group of mobile wireless users. The group may consist of a fleet of trucks, taxicabs, government service vehicles, or the customers of a wireless service provider. The mobile vehicles must be equipped with a GPS device or be located by other means such as triangulation. While vehicles are moving, the quality of wireless communication, e.g., signal strength or communication continuity, is recorded for each vehicle as a function of positions. The data from all of the vehicles is combined to produce the empirical map. The empirical map may be maintained at a central site and subsets of the map replicated for individual vehicles. The map may then be used to direct mobile users to sites of superior communications reliability, warn mobile users when they are out of the service area or are about to leave the service area, or to regulate data communications automatically to stop and restart communications as a mobile vehicle passes through a gap in coverage.

A system and method for identifying geographical areas which distribute poor radio frequency coverage is provided. The method includes measuring a radio frequency signal of a mobile unit in response to a trigger. The method continues with mapping the location data of the radio frequency signal which represents the positioning of the mobile unit at a given time. The method continues with recording the location data of the mobile unit and storing the location data in a database. The trigger, which prompts the radio frequency measurement, may be a timer expiring, a dropped call, or a mobile power increase signaling a weak signal. In any form, a post processing module may be configured in order to record, store and organize the location data into a report, such as a coverage map. Embodiments of this disclosure will display geographic areas that have poor radio frequency and allow for an administrator to identify trouble spots by a geographical region.

In one embodiment, a method for generating a radio-frequency coverage map. The method includes receiving coverage map data comprising a plurality of locations within a region, and an identification of a location in the plurality of locations corresponding to a radio transceiver, wherein the locations within the region are represented by at least corresponding x- and y-terms of a Cartesian coordinate system. The method further includes receiving calibration data comprising a plurality of observed signal strength values at corresponding ones of the plurality of locations, converting the x- and y-terms of the locations of the coverage map data to corresponding first and second warped coordinate terms of a warped coordinate system, and computing, using linear interpolation and the first and second warped coordinate terms, predicted received signal strength values at one or more locations in the coverage map based on the calibration data.

Improved techniques for characterizing, adjusting and optimizing the overall performance of a wireless network. In an illustrative embodiment, the overall network performance for a particular network configuration is characterized by a vector with two components, one representing network coverage and another representing network capacity. Network coverage is defined by the likelihood of service under load, including interference, and may be further weighted by traffic density. Network capacity is defined by an amount of traffic with a given spatial distribution that can be served at a given overall target-blocking rate. The overall network performance may be characterized using a two-dimensional capacity/coverage diagram which plots overall network performance vectors, each including a network capacity component and a network coverage component, for various network configurations. The overall network performance may be improved or optimized with respect to a given subset of network parameters by using an algorithm that proposes potential network configurations and evaluates them with respect to their overall network performance.

Described is a method for determining an existence of a predetermined wireless network coverage condition. A wireless coverage map of a wireless network is generated as a function of a location of at least one access point and a first signal data collected at a plurality of locations within the network. The first signal data includes a first signal strength of a wireless signal communicated between the at least one access point and a wireless device. A second signal data is received. The second signal data includes a second signal strength of a further wireless signal communicated between one of the at least one access point and a further wireless device. The existence of the predetermined wireless network coverage condition is determined as a function of the second signal data and the wireless coverage map.

Mapping signal strength. A signal strength monitor is polled to measure signal strength. Each polled signal strength is associated with an associated geographical position. The signal strength and the associated geographical position is stored in memory. The stored signal strength and the stored associated geographical position is sent to a server. A coverage map of a geographical area is generated based on the stored signal strength and the associated geographical position in memory.

A method and system in accordance with the present invention integrates information from cell phone coverage maps with a user's GPS system, thereby making possible the suggestion of alternative routes based on coverage strength and chances of dropping calls in different geographical areas. The method and system in accordance with the present invention can also generate warnings if a user is approaching an area of low or nonexistent coverage, so that the user can take action, such as utilizing a different route or telling the party on the line that the connection may be dropped or disconnected.

The invention discloses a minimization drive test (MDT) processing method based on a coverage hole and equipment. The method comprises the following steps: when user equipment (UE) detects that the UE enters into a coverage hole, if a first log MDT timer is not exceeded, the UE stops the first log MDT timer, and determines whether the UE is the first time to enter into the coverage hole after configuring log MDT measurement; if so, the UE starts a second log MDT timer which is used for recording existence time of the UE in the coverage hole. In the invention, in a coverage hole scene, it is ensured that the UE can record a measurement result and a geographical position of entering into and leaving the hole to enable a service provider to obtain a coverage map and to optimize network coverage.

The invention discloses a method for utilizing airborne laser radar point cloud to extract urban vegetation three-dimensional coverage map. The method comprises the following steps of data pro-processing, airborne laser radar (LiDAR) point cloud data median filtering and data height normalization. A classification rule based on a strength value and space information is established according to a result analyzed after a ground feature laser point strength value is calibrated according to the aerial photograph condition and is used for distinguishing vegetation laser points and non-vegetation laser points. An existing tool is utilized to evaluate the effectiveness of the rule, and laser point classification is performed after optimization. The laser points are vertically stratified, and an inverse distance method (IDW) is utilized to conduct interpolation on stratified data to obtain a vegetation three-dimensional coverage map.

A coverage map for a wireless network is generated. The network includes a server communicating with clients in a coverage area. The clients are mobile devices. At the server, location and reliability information from each client is received. The server then constructs and maintains the coverage map according to the location and reliability information. The coverage map is used to deliver telematic information from the server to the clients in response to requests by the clients.

Methods of planning network provisioning that incorporate real-world measurements of signal quality into simulations of signal quality under alternative configurations. In one embodiment, the disclosure includes a method of determining placements for access points in a wireless network, comprising ingesting a floor plan for a deployment site, determining initial placements for the access points, determining placements for sensors, each sensor configured to wirelessly communicate with at least one access point, measuring a signal metric for each sensor, based at least in part on the measured signal metric for each of the sensors, simulating a projected coverage map for a plurality of alternate placements for the access points, determining an placement of the access points, and presenting, to a user, the placement of the plurality of access points.

Apparatus and systems, as well as methods and articles, may operate to generate a system coverage map from a plurality of geosystemic data points, as well as to change wireless system operational parameters responsive to various parameters associated with the plurality of geosystemic data points.

The invention provides a method and a system for processing wireless network coverage data, and a webmaster. The method comprises: a serving base station sending measurement information periodically to a terminal; and the terminal measuring signal quality of the serving base station and neighbor base stations according to the received signal measurement information, and reporting measuring result information to the serving base station, the measuring result information carrying geographical position information of the terminal. According to the method, the system and the webmaster, a wireless network coverage map can be drawn, and reliable reference data is provided for network optimization. The method, the system and the webmaster are free of drive tests which cost much manpower and time. Problems of network coverage are found out in advance so as to prevent user's complaint.