Abstract: An apparatus obtains a set of radio data comprising signal strength related values for radio signals transmitted by a transmitter with an association of each signal strength related value with a representation of a geographical location. The apparatus applies a frequency transform to the obtained set of radio data to obtain transform coefficients, each transform coefficient comprising a transform index and an associated transform value. The apparatus selects a subset of transform indices having more significant transform values than the remaining transform indices and compresses the transform indices by encoding each transform index exploiting a probability of occurrence of an index value of a respective transform index. The same or another apparatus decodes the compressed transform indices again for use in position operations.

Abstract: An apparatus obtains a set of radio data comprising signal strength related values for radio signals transmitted by a transmitter with an association of each signal strength related value with a representation of a geographical location. The apparatus applies a frequency transform to the obtained set of radio data to obtain transform coefficients, each transform coefficient comprising a transform index and an associated transform value. The apparatus selects a subset of transform indices having more significant transform values than the remaining transform indices and compresses the transform indices by encoding each transform index exploiting a probability of occurrence of an index value of a respective transform index. The same or another apparatus decodes the compressed transform indices again for use in position operations.

Abstract: It is disclosed to obtain a frequency transformed radiomap data set by applying a discrete frequency transform to an original radiomap data set. It is also disclosed to obtain a reconstructed radiomap data set by applying an inverse discrete frequency transform to a frequency transformed radiomap data set.

Abstract: Systems and methods for determining a location based on a direction sign. A method includes receiving a map of a physical area that includes a plurality of nodes connected by a links, where each link represents a travel path between connected nodes and has an associated distance value. The method includes receiving image data that indicates at least a first destination point of interest (POI) associated with a first physical direction and a second destination POI associated with a second physical direction. The method includes associating the first destination POI with a first node and associating the second destination POI with a second node. The method includes determining a location node of the plurality of the nodes according to the distances and directions of shortest paths to the first and second nodes, and returning a physical location corresponding to the determined location node.

Abstract: An apparatus is provided that determines, based on a geometrical criterion and at least one map object of plurality of map objects, whether a map element of a first map element type or a second map element type shall be created; wherein elements of the first map element type are intended to be usable for applying a constraint to a user position and wherein elements of the second map element type are intended to be less usable for applying a constraint to a user position compared to the elements of the first map element type; and creates a map element according to the determined map element type, the created map element being associated with the at least one map object.

Abstract: It is inter-alia disclosed a method performed by an apparatus, said method comprising: determining a representative of a size of a geofence based on one or more parameters, wherein at least one parameter of the one or more parameters is indicative of a location update interval associated with a mobile device.

Abstract: Systems and methods for determining a location based on a direction sign. A method includes receiving a map of a physical area that includes a plurality of nodes connected by a links, where each link represents a travel path between connected nodes and has an associated distance value. The method includes receiving image data that indicates at least a first destination point of interest (POI) associated with a first physical direction and a second destination POI associated with a second physical direction. The method includes associating the first destination POI with a first node and associating the second destination POI with a second node. The method includes determining a location node of the plurality of the nodes according to the distances and directions of shortest paths to the first and second nodes, and returning a physical location corresponding to the determined location node.

Abstract: The invention inter alia relates to a method, performed by a first apparatus, for positioning or assisting in positioning said first apparatus, said method comprising: obtaining multiple original identifiers identifying respective first radio networks or nodes thereof; generating, for each of at least two of said original identifiers, from a respective original identifier a shortened identifier being representative of said respective original identifier and having a smaller size than said respective original identifier; and providing said shortened identifiers over a second radio network for positioning or assisting in positioning said first apparatus.

Abstract: A network device receives a positioning request associated with a computing device; determines a position estimate of the computing device responsive to the positioning request and based at least in part on at least a portion of a positioning map; and determines whether an offline positioning enablement trigger has been identified. Responsive to determining that the offline positioning enablement trigger has been identified, the network device generates a positioning response that comprises the position estimate and information enabling offline positioning of the computing device at least at a location of the position estimate and provides the positioning response such that the computing device receives the positioning response.

Abstract: An apparatus obtains a set of radio data comprising signal strength related values for radio signals transmitted by a transmitter with an association of each signal strength related value with a representation of a geographical location. The apparatus applies a frequency transform to the obtained set of radio data to obtain transform coefficients, each transform coefficient comprising a transform index and an associated transform value. The apparatus selects a subset of transform indices having more significant transform values than the remaining transform indices and compresses the transform indices by encoding each transform index exploiting a probability of occurrence of an index value of a respective transform index. The same or another apparatus decodes the compressed transform indices again for use in position operations.

Abstract: An apparatus obtains a set of radio data comprising signal strength related values for radio signals transmitted by a transmitter with an association of each signal strength related value with a representation of a geographical location. The apparatus applies a frequency transform to the obtained set of radio data to obtain transform coefficients, each transform coefficient comprising a transform index and an associated transform value. The apparatus selects a subset of transform indices having more significant transform values than the remaining transform indices and compresses the transform indices by encoding each transform index exploiting a probability of occurrence of an index value of a respective transform index. The same or another apparatus decodes the compressed transform indices again for use in position operations.

Abstract: A method, performed by an apparatus (2)(4), is disclosed, the method comprising: obtaining alignment information pertaining to a map (10), which is or is to be aligned in a reference frame; performing or receiving a result of a check of the alignment of the map (10) at least based on the obtained alignment information and on reference information allowing for an at least partial check of the alignment of the map (10) in the reference frame.

Abstract: A system correlates tracked changes in altitude, which are based on data provided by a barometer or a pressure altimeter of a mobile device while a user of the mobile device moves around in a multi-story building, with changes of floors indicated via a user interface of the mobile device. Heights of floors of the building are determined based on the correlation. The determined heights of floors may then be stored for future use.

Abstract: It is disclosed to obtain a frequency transformed radiomap data set by applying a discrete frequency transform to an original radiomap data set. It is also disclosed to obtain a reconstructed radiomap data set by applying an inverse discrete frequency transform to a frequency transformed radiomap data set.

Abstract: It is inter-alia disclosed a method performed by an apparatus, said method comprising: determining a representative of a size of a geofence based on one or more parameters, wherein at least one parameter of the one or more parameters is indicative of a location update interval associated with a mobile device.

Abstract: The invention inter alia relates to a method, performed by a first apparatus, for positioning or assisting in positioning said first apparatus, said method comprising: obtaining multiple original identifiers identifying respective first radio networks or nodes thereof; generating, for each of at least two of said original identifiers, from a respective original identifier a shortened identifier being representative of said respective original identifier and having a smaller size than said respective original identifier; and providing said shortened identifiers over a second radio network for positioning or assisting in positioning said first apparatus

Abstract: It is inter-alia disclosed a method performed by an apparatus, said method comprising, for each positioning technique of one or more positioning techniques: determining a representation of a geofence at least partially based on a plurality of parameters, wherein at least one parameter of the plurality of parameters is indicative of an area-of interest and at least one parameter of the plurality of parameters is associated with the respective positioning technique of the one or more positioning techniques.

Abstract: A method for obtaining a service by a first terminal related to a network entity, the method comprising receiving information indicative of capabilities related to the network entity, and selecting one or more of the capabilities. A further method for obtaining a service by a terminal related to an assistance server comprising sending by the terminal a capability request, and receiving, in the terminal, information indicative of capabilities related to the assistance server, wherein the information indicative of capabilities comprises indications of available assistance related to the assistance server.

Abstract: It is disclosed to obtain a frequency transformed radiomap data set by applying a discrete frequency transform to an original radiomap data set. It is also disclosed to obtain a reconstructed radiomap data set by applying an inverse discrete frequency transform to a frequency transformed radiomap data set.

Abstract: Results of measurements by a mobile device on radio signals transmitted by at least one transmitter are obtained. The results of measurements comprise characteristics of the radio signals at each of a plurality of locations of measurements at a particular site, and indications of the locations of measurement. The results of measurement and the indications of the locations are provided and used as a basis for a generation of a radio map for use in supporting a positioning of mobile devices at the site. In addition, a user input to the mobile device is detected, the user input defining a localization area at the site that is to be covered by the radio map. A representation of the defined localization area is provided in addition for use in connection with the radio map.