Enhancement of data map of objects via object specific radio frequency parameters
Devices, methods and computer programs for enhancing a data map of objects via object specific radio frequency parameters are disclosed. Channel state information measurements for a surrounding of a network node and a corresponding radio channel simulation are accessed. A set of radio frequency parameters for each interaction point is estimated.
1 . An apparatus, comprising:
at least one processor; and
at least one memory storing instructions that, when executed with the at least one processor, cause the apparatus to at least perform:
accessing channel state information measurements performed with a mobile node for a surrounding of a network node and accessing a corresponding radio channel simulation; and
estimating a set of radio frequency parameters for an interaction point;
wherein the interaction point comprises a point in which a multipath component is reflected, diffracted, or transmitted to an object of a data map of objects in the surrounding of the network node.
2 . The apparatus according to claim 1 , wherein the instructions, when executed with the at least one processor, further cause the apparatus to at least perform:
comparing multipath component parameters of multipath components from the accessed channel state information measurements with multipath component parameters of multipath components from the accessed radio channel simulation to identify multipath components that correspond; and
identifying interaction points of the identified multipath components in the data map of objects in the surrounding of the network node,
wherein the estimating of the set of radio frequency parameters is performed with comparing relative differences between the multipath component parameters of the multipath components from the accessed channel state information measurements and the multipath component parameters of the multipath components from the accessed radio channel simulation.
3 . The apparatus according to claim 2 , wherein the instructions, when executed with the at least one processor, further cause the apparatus to at least perform:
updating the identified interaction points in the data map of objects with the estimated set of radio frequency parameters.
4 . The apparatus according to claim 1 , wherein the instructions, when executed with the at least one processor, further cause the apparatus to at least perform:
providing the estimated set of radio frequency parameters for storage to at least one of: the network node or a cloud-based storage.
5 . The apparatus according to claim 4 , wherein estimating the set of radio frequency parameters for the interaction point comprises estimating sets of radio frequency parameters for a plurality of interaction points; and
the estimated sets of radio frequency parameters are provided for storage per interaction point of the plurality of interaction points for multipath components for multiple mobile nodes at multiple locations over given time periods.
6 . The apparatus according to claim 4 , wherein the estimated set of radio frequency parameters provided for storage is for use in at least one of channel estimation and prediction, mobile node localization, or handover.
7 . The apparatus according to claim 3 , wherein the instructions, when executed with the at least one processor, further cause the apparatus to at least perform:
providing the data map of objects having the updated identified interaction points with the estimated set of radio frequency parameters to a requesting entity in response to a request from the requesting entity.
8 . The apparatus according to claim 2 , wherein the multipath component parameters of the multipath components from the accessed channel state information measurements and from the accessed radio channel simulation comprise at least one of a delay of the multipath component, an amplitude of the multipath component, a phase of the multipath component, or an angle of arrival of the multipath component.
9 . The apparatus according to claim 1 , wherein the data map of objects comprises a building vector data map.
10 . The apparatus according to claim 1 , wherein a radio frequency parameter of the set of radio frequency parameters comprises at least one of a phase shift, a reflection coefficient, a transmission coefficient, or a diffraction coefficient.
11 . The apparatus according to claim 2 , wherein the instructions comprise a neural network trained to perform the identifying of the multipath components that correspond with comparing the multipath component parameters of the multipath components from the accessed channel state information measurements with the multipath component parameters of the multipath components from the accessed radio channel simulation.
12 . The apparatus according to claim 2 , wherein the instructions comprise a neural network trained to perform the estimating of the set of radio frequency parameters for the identified interaction point with comparing the relative differences between the multipath component parameters of the multipath components from the accessed channel state information measurements and the multipath component parameters of the multipath components from the accessed radio channel simulation.
13 . A method, comprising:
accessing, with an apparatus, channel state information measurements performed with a mobile node for a surrounding of a network node and accessing, with the apparatus, a corresponding radio channel simulation; and
estimating, with the apparatus, a set of radio frequency parameters for an interaction point;
wherein the interaction point comprises a point in which a multipath component is reflected, diffracted, or transmitted to an object of a data map of objects in the surrounding of the network node.
14 . A non-transitory program storage device readable with an apparatus tangibly embodying a program of instructions executable with the apparatus to perform operations, the operations comprising:
accessing channel state information measurements performed with a mobile node for a surrounding of a network node and accessing a corresponding radio channel simulation; and
estimating a set of radio frequency parameters for an interaction point;
wherein the interaction point comprises a point in which a multipath component is reflected, diffracted, or transmitted to an object of a data map of objects in the surrounding of the network node.
15 . The non-transitory program storage device according to claim 14 , wherein the operations further comprise:
comparing multipath component parameters of multipath components from the accessed channel state information measurements with multipath component parameters of multipath components from the accessed radio channel simulation to identify multipath components that correspond; and
identifying interaction points of the identified multipath components in the data map of objects in the surrounding of the network node,
wherein the estimating of the set of radio frequency parameters is performed with comparing relative differences between the multipath component parameters of the multipath components from the accessed channel state information measurements and the multipath component parameters of the multipath components from the accessed radio channel simulation.
16 . The non-transitory program storage device according to claim 15 , wherein a first neural network is trained to perform the identifying of the multipath components that correspond with comparing the multipath component parameters of the multipath components from the accessed channel state information measurements with the multipath component parameters of the multipath components from the accessed radio channel simulation; and
a second neural network is trained to perform the estimating of the set of radio frequency parameters for the identified interaction point with comparing the relative differences between the multipath component parameters of the multipath components from the accessed channel state information measurements and the multipath component parameters of the multipath components from the accessed radio channel simulation.
17 . The non-transitory program storage device according to claim 14 , wherein the data map of objects comprises a building vector data map.
18 . The method according to claim 13 , further comprising:
comparing multipath component parameters of multipath components from the accessed channel state information measurements with multipath component parameters of multipath components from the accessed radio channel simulation to identify multipath components that correspond; and
identifying interaction points of the identified multipath components in the data map of objects in the surrounding of the network node,
wherein the estimating of the set of radio frequency parameters is performed with comparing relative differences between the multipath component parameters of the multipath components from the accessed channel state information measurements and the multipath component parameters of the multipath components from the accessed radio channel simulation.
19 . The method according to claim 18 , wherein a first neural network is trained to perform the identifying of the multipath components that correspond with comparing the multipath component parameters of the multipath components from the accessed channel state information measurements with the multipath component parameters of the multipath components from the accessed radio channel simulation; and
a second neural network is trained to perform the estimating of the set of radio frequency parameters for the identified interaction point with comparing the relative differences between the multipath component parameters of the multipath components from the accessed channel state information measurements and the multipath component parameters of the multipath components from the accessed radio channel simulation.
20 . The method according to claim 13 , wherein the data map of objects comprises a building vector data map.