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 is provided that is performed by a mobile device at least partially under control of a positioning program. The method includes establishing or initiating establishing a secure communication path to a remote device for receiving one or more signature parameter data sets and receiving said signature parameter data set(s) via said secure communication path. The method also includes estimating a position of said mobile device at least partially based on radio signal parameter(s) obtained by said mobile device. The position data are obtained as a result of said estimating. The method further includes determining a digital signature of said position data at least partially based on at least one of said signature parameter data set(s). The method also includes providing said position data and said signature data to one or more application programs. A corresponding device and computer-readable storage medium are also provided.

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: A method is disclosed that includes obtaining one or more pieces of threat information indicative of a data set enabling positioning based on radio signals sent by a respective radio node. The data set is further indicative of one or more parameters based on which said positioning is performed and/or controlled and which is considered to be at least partially unexpected. The method also includes utilizing the one or more pieces of threat information in a positioning. In order to obtain the one or more pieces of threat information, the method includes at least one of: obtaining the one or more pieces of threat information by using an application programming interface; or obtaining the one or more pieces of spoofing information by using a push method. A corresponding apparatus, computer-readable storage medium and system are also disclosed.

Abstract: A method, apparatus and computer-readable storage medium are provided that maintain a database including information identifying of one or more mobile devices. Each mobile device of the one or more mobile devices is configured to enable positioning based on radio signals. The positioning enabled by the respective mobile device is considered to be at least partially unexpected.

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: A method is disclosed that includes maintaining a database comprising identifying information indicative of one or more radio nodes and/or of one or more areas within which the one or more radio nodes are located. Each respective radio node of the one or more radio nodes is configured to enable positioning based on radio signals sent by the respective radio node. The positioning enabled by the respective radio node is considered to be at least partially unexpected. A corresponding apparatus, computer-readable storage medium and system are also provided.

Abstract: A method is disclosed that includes obtaining one or more pieces of spoofing information indicative of a data set enabling positioning based on radio signals sent by a respective radio node. The data set is further indicative of one or more parameters based on which said positioning is performed and/or controlled and which is considered to be at least partially unexpected. The method further includes aggregating spoofing information based on the one or more parameters of the respective data set of the one or more pieces of spoofing information; and providing at least a part of the aggregated spoofing information for usage in a positioning. A corresponding apparatus, computer-readable storage medium and system are also disclosed.

Abstract: A method is disclosed that includes obtaining one or more radio signal parameters of one or more radio signals observed by a mobile device at an observation position. The method also includes obtaining or holding available radio map information representing a radio map of a predetermined environment. The radio map is indicative of an expected radio environment of the predetermined environment. The method further includes determining, at least partially based on the one or more radio signal parameters and the radio map information, whether the one or more radio signal parameters are expected or unexpected. A corresponding apparatus and a computer-readable storage medium are also disclosed.

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 at least a first apparatus, is disclosed, comprising: automatically and repeatedly obtaining, at said first apparatus, information representative of an ambient pressure at said first apparatus; and automatically and repeatedly sending or triggering sending, by said first apparatus, at least a part of said obtained information representative of an ambient pressure at said first apparatus. A method, performed by at least a second apparatus, is disclosed, comprising: obtaining information representative of an ambient pressure at a first apparatus sent by said first apparatus and received at a device; and estimating an ambient pressure at said device at least based on said information representative of an ambient pressure at said first apparatus.

Abstract: A first apparatus assembles assistance data for a satellite signal based positioning of a device, the assistance data comprising a satellite specific ionospheric model for at least one specific satellite and a time stamp that relates the satellite specific ionospheric model to particular ephemeris data for the at least one specific satellite. The assistance data is provided for transmission. A second apparatus receives the assistance data and computes a position of the device making use of the particular ephemeris data and of the satellite specific ionospheric model.

Abstract: A method is disclosed that includes obtaining one or more radio signal parameters of one or more radio signals observed by a mobile device at an observation position. The method also includes obtaining or holding available radio map information representing a radio map of a predetermined environment. The radio map is indicative of an expected radio environment of the predetermined environment. The method further includes determining, at least partially based on the one or more radio signal parameters and the radio map information, whether the one or more radio signal parameters are expected or unexpected. A corresponding apparatus and a computer-readable storage medium are also disclosed.

Abstract: A method is disclosed that includes obtaining one or more pieces of radio measurements; determining one or more radio nodes that enable one or more mobile devices a respective positioning; and maintaining a database comprising information identifying the determined one or more radio nodes. A corresponding apparatus, computer-readable storage medium and system are also disclosed.

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 is disclosed that includes obtaining one or more pieces of radio measurements; determining one or more radio nodes that enable one or more mobile devices a respective positioning; and maintaining a database comprising information identifying the determined one or more radio nodes. A corresponding apparatus, computer-readable storage medium and system are also disclosed.

Abstract: A method, apparatus and computer program product are provided for delivery verification. In the context of a method, an estimated time of delivery to a respective delivery location is determined. The estimated time of delivery is at least partially based upon a first location along a delivery route and the respective delivery location. The method also includes determining a delivery time at which a delivery attempt or a delivery was indicated to be made to the respective delivery location and performing a comparison of the delivery time to the estimated time of delivery. The method further includes differently verifying the delivery attempt or the delivery to the respective delivery location depending upon the comparison of the delivery time to the estimated time of delivery.

Abstract: This specification describes a method comprising accessing radiomap data including location information indicating locations of plural nodes of a first class, each of the plural nodes of the first class being identifiable only by a locally-unique identifier, the locally unique identifier of each of the plural nodes being included in the radiomap data, and using the radiomap data to determine a location within a space of a radio communication apparatus based on at least one transmission received by the radio communications apparatus from at least one of the plural nodes of the first class, the at least one transmission including the locally-unique identifier of the node from which the transmission is received.

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 method is disclosed, comprising: holding available, by a first apparatus, encrypted first positioning support data, wherein said encrypted first positioning support data are decryptable by a first decryption key, and wherein said encrypted first positioning support data are configured to enable one or more mobile devices receiving said encrypted first positioning support data and having access to said first decryption key to determine their position at least partially based on said first positioning support data; and automatically and repeatedly sending or triggering sending, by said first apparatus, said encrypted first positioning support data.