Abstract: An apparatus receives coordinates of a location and selects an object of a first layer of a tree structure based on the coordinates. The apparatus determines whether data assigned to the selected object comprises an identifier of an area or a pointer to a set of objects of a respective next layer of the tree structure. If the data comprises a pointer to a set of objects, the apparatus selects one of the objects from the set of objects based on the received coordinates and continues with determining whether data assigned to the selected object comprises an identifier or a pointer. If the data comprises an identifier of an area, the apparatus reads the data comprising the identifier and provides the identifier as a result of a mapping of a location to an identifier of an area. A computer readable storage medium stores a database having a corresponding tree structure.

Abstract: An apparatus retrieves information on an availability of data on wireless local area networks for a particular area from a memory. The particular area is identified based on cellular measurements at a mobile terminal. The apparatus provides the retrieved information as a basis for a decision whether to perform a scan for wireless local area networks at the mobile terminal as a basis for a wireless local area network based positioning. Information on an availability of data on wireless local area networks for a plurality of areas may be provided to a mobile terminal by a server.

Abstract: The application relates to storage and retrieval of information about access points APs of wireless local area networks WLANs. It is known to store information about WLAN APs, for example fingerprint data, in such a way that the data can be accessed using the BSSID of the WL-AN AP, i.e. the MAC address of the radio interface, as a key. However, malicious manufacturers or users copy existing MAC addresses and thereby duplicate existing BSSIDs. Effectively this means that the BSSID is not globally unique, but the same BSSID may occur in multiple WLAN APs at multiple locations. Therefore, when using the BSSID as a key, an AP may thus occasionally and incorrectly seem to jump from one location to another. This problem is solved by the present application in that the information about APs (Data) is assigned not only to the BSSID (BSSID1, BSSIDM) as the primary key but also to an identifier of region (MCC1, MCCN), such as the mobile country code MCC, as a secondary key.

Abstract: It is inter alia disclosed to obtain or generate detection data. The detection data comprises position data that is indicative of a position of a terminal and one or more identifiers respectively related to one or more coverage areas detected by the terminal. A negative hit for at least a region of a coverage area representation associated with a coverage area is detected, if at least all of the following conditions (i)-(iii) hold: (i) a class of the coverage area matches at least one class of one or more coverage areas for which respective identifiers are comprised or at least expected to be comprised in the detection data, (ii) the position of the terminal is within the region, and (iii) the detection data does not comprise an identifier related to the coverage area associated with the coverage area representation.

Abstract: An apparatus determines at least one factor defining a density of an adaptive grid in relation to a density of a reference grid, while the adaptive grid is being used as a basis for storing data relating to a node of a communications network with a mapping to grid points of the adaptive grid. The apparatus causes storage of an indication of the determined at least one factor for the node.

Abstract: An apparatus performs continuous measurements on terrestrial signals transmitted by nodes of a communication network to obtain results of measurements. Furthermore, the apparatus continuously determines a position of the mobile device based on the results of measurements at the mobile device and based on data stored in the mobile device, the data including data on characteristics of nodes of at least one communication network that are based at least partly on results of measurements at a plurality of mobile devices on terrestrial signals transmitted by nodes of the at least one communication network.

Abstract: An apparatus determines for each of a plurality of sub-areas of an area an amount of measurement results that are received for the respective sub-area. The apparatus further determines a sub-area, for which the determined amount of measurement results exceeds a reference value. The apparatus further sets up for the determined sub-area a focus grid with a density that is higher than a lowest density of a basic grid assigned to the area. Measurement results received for the determined sub-area may then be stored at least with a mapping to grid points of the focus grid.

Abstract: An apparatus receives a plurality of reports from at least one mobile terminal, which is connected to a particular cell of a cellular communication network. Each report includes an identification of a first type of a plurality of cells of the cellular communication network currently observed by the at least one mobile terminal and, associated with each identification of the first type, a result of at least one measurement on signals. The apparatus computes for each identification of the first type, a result of at least one measurement in the plurality of reports. The apparatus then determines, based on the computed sums, one of the identifications of the first type to be an identification of the first type of the particular cell.

Abstract: It is inter alia disclosed to update or to trigger updating of a second-layer coverage area representation of a second-layer coverage area at least in dependence on a decision whether a first-layer coverage area representation of a first-layer coverage area has changed to an extent that exceeds a pre-defined or determined extent or not. The first-layer coverage area and the second-layer coverage area are part of a hierarchy of coverage areas of a communication system. The second-layer coverage area at least comprises the first-layer coverage area.

Abstract: It is disclosed an apparatus, a method and a computer program for determining, at a terminal, whether at least one terminal position associated with a coverage area of a communication node shall be discarded or reported to allow at least one of said coverage area and said communication node to be characterized at least partially based on said at least one reported terminal position.

Abstract: In accordance with an example embodiment of the present invention, a method performed by an apparatus comprises, causing said apparatus at least to perform one of providing and obtaining information on a serving cell that is, at a point of time, serving a mobile terminal and information related to a neighbor cell that is, at least substantially at said point of time, observed by said mobile terminal, wherein said serving cell is a cell of a first communication network, wherein said neighbor cell is a cell of a second communication network, and wherein said first communication network has a type that is different from a type of said second communication network and/or is operated by an operator that is different from an operator of said second communication network.

Abstract: It is disclosed to determine, as a representation of a set of terminal positions, a polygon that encloses all terminal positions of the set of terminal positions. The terminal positions are positions of one or more terminals within a coverage area of a communication node.

Abstract: An apparatus, method and computer program, the apparatus, comprising: receiver circuitry configured to receive first position reference data from a remote location, the first position reference data relating to a first geographical area and being for assisting the apparatus to determine a position of the apparatus within the first geographical area, using wireless signals received at the apparatus; collection circuitry configured to collect second position reference data, the second position reference data being for modification of the first position reference data, at a remote location; positioning circuitry configured to determine a position of the apparatus, the position being within the first geographical area; transmitter circuitry configured to transmit collected second position reference data; and processing circuitry configured, in dependence upon the determined position of the apparatus and the first position reference data, to selectively control transmission of collected second position reference d

Abstract: Methods and devices may request and provide assistance data from an assistance server to a receiver in a global navigation satellite system. A request for assistance data may include a preference list of navigation models suitable for the requesting receiver. Multiple preference lists for different navigation model types (e.g., orbit model, clock model, almanac model) may be included in a single list and/or data structure, or as multiple lists and/or data structures. An assistance server may receive and process the preference list, for example, by parsing and traversing the ordered list(s) for different navigation model types, in order to provide satellite navigation data to the receiver in accordance with suitable navigation models that are available at both the receiver and the assistance server.

Abstract: Method, apparatus, and computer program product example embodiments provide wireless position determination. According to an example embodiment, a method comprises generating in a mobile wireless device, grid nodes representing one or more floor areas in an enclosed space, based on a map of the enclosed space; estimating locations along a path of motion of a user of the mobile wireless device traversing the one or more floor areas, based on motion observations made by a motion sensor in the mobile wireless device and map information; generating a radiomap of the one or more floor areas by making radio measurements with the mobile wireless device, at the estimated locations along the path of motion, mapping the measurements to the generated grid nodes that are closest to the estimated locations; and compiling a fingerprint data structure of the radiomap, including observation elements representing the radio measurements at the mapped grid nodes.

Abstract: An apparatus, a method and a computer program, the apparatus comprising: collection circuitry configured to collect position reference data, wherein the collected position reference data is for assisting another apparatus to determine a position of the another apparatus based upon wireless signals received by the another apparatus; receiver circuitry configured to receive control data relating to controlling the transmission of collected position reference data by the apparatus; transmitter circuitry configured to transmit collected position reference data; and processing circuitry configured, in dependence upon the received control data, to selectively control transmission of collected position reference data by the transmitter circuitry.

Abstract: It is disclosed to operate a generating/updating process that comprises generating and/or updating at least one model for a coverage area of a communication node and/or at least one process associated with said generating/updating process in dependence on at least one state of a state machine.

Abstract: It is inter alia disclosed to respectively link at least two objects of a plurality of objects to one or more respective regions of a grid of regions. The at least two objects are respectively related to a respective coverage area representation and/or a respective coverage-providing entity. At least two of the at least two objects are associated with each other based on a finding that both have been linked to at least one same region of the grid of regions. At least one of the at least two associated objects is an object related to a first communication system and at least one other of the at least two associated objects is an object related to a second communication system that is different from and/or operated by another operator than said first communication system.

Abstract: It is disclosed to determine, as a representation of a set of terminal positions, a polygon that encloses all terminal positions of the set of terminal positions. The terminal positions are positions of one or more terminals within a coverage area of a communication node.

Abstract: It is disclosed an apparatus, a method and a computer program for determining a position of a terminal. It is checked if an intersection of all areas of a set of areas that are associated with one or more communication nodes and represent and/or limit possible positions of a terminal is potentially non-empty. Each of the areas is associable with a respective bounding box. The intersection is defined to be potentially non-empty if an intersection of all of the bounding boxes would be non-empty. A position of the terminal is determined in dependence on a result of the checking if the intersection of all areas of the set of areas is potentially non-empty.