公开(公告)号：US20150333849A1

公开(公告)日：2015-11-19

申请号：US14652387

申请日：2012-12-21

Applicant: TELECOM ITALIA S.p.A.

Inventor： Massimiliano PETRA ,  Loris Paolo STOLA

IPC: H04B17/10

Abstract: A method for estimating the electric field strength associated to a radio wave emitted by an electromagnetic source of a cellular radio communication network within an area. The method includes: identifying a set of obstacles; determining at least one of: a direct visibility polygon of points in line of sight with the source; a reflection visibility polygon of points reachable by the wave after reflection by the obstacles; a diffraction visibility polygon of points reachable by the wave after diffraction by the obstacles. The visibility polygons are associated to respective values of the electric field computed therein. The method further includes: subdividing the area into pixels; for each pixel, determining if it belongs to at least one of the visibility polygons; and in the affirmative, determining the electric field strength at the pixel as a value proportional to the electric field computed at the at least one visibility polygon.

Abstract translation: 一种用于估计与由区域内的蜂窝无线电通信网络的电磁源发射的无线电波相关联的电场强度的方法。 该方法包括：识别一组障碍物; 确定以下中的至少一个：与所述源的视线中的点的直接可见度多边形; 由障碍物反射后波形可到达的点的反射可见度多边形; 由障碍物衍射后的波到达的点的衍射可见多边形。 可见性多边形与其中计算的电场的相应值相关联。 该方法还包括：将该区域细分成像素; 对于每个像素，确定它是否属于可见性多边形中的至少一个; 并且肯定地，将像素处的电场强度确定为与在至少一个可见度多边形处计算的电场成比例的值。

公开(公告)号：US20170219681A1

公开(公告)日：2017-08-03

申请号：US15514932

申请日：2014-09-29

Applicant: TELECOM ITALIA S.p.A.

Inventor： Giorgio GHINAMO ,  Massimiliano PETRA

IPC: G01S5/02 ,  G01S19/42

CPC classification number: G01S5/0252 ,  G01S5/0278 ,  G01S19/42 ,  H04W64/00

Abstract: A method of identifying a position of a user equipment within a wireless communication network includes: a) providing expected radio signal strengths produced by at least one radio communication station on each of plural elementary area elements in which a geographic area is subdivided; b) defining an initial attenuation experienced by the radio signals to the user equipment whose position is to be identified; c) obtaining measured radio signal strength measurements of the radio signals provided to the user equipment whose position is to be identified; d) determining an estimated elementary area element corresponding to the position of the user equipment whose position is to be identified based on the expected radio signal strengths, the initial attenuation and the radio signal strength measurements, and e) computing a final attenuation based on the estimated elementary area element. The operations b)-e) are iterated at least twice.

公开(公告)号：US20230199513A1

公开(公告)日：2023-06-22

申请号：US17999608

申请日：2021-05-18

Applicant: TELECOM ITALIA S.p.A.

Inventor： Massimo COLONNA ,  Piero LOVISOLO ,  Dario PARATA ,  Massimiliano PETRA

IPC: H04W16/18 ,  H04W64/00

CPC classification number: H04W16/18 ,  H04W64/003

Abstract: Matrices of movement in a geographic area are computed. The method subdivides the geographic area into geographic zones. Each entry of a matrix includes an indication of movements from one geographic zone to another in the respective time slot. The geographic area of interest is subdivided into geographic area portions, and mobile communication terminals in the geographic area calculate and provide respective geographic position estimates to a data processing system. An overall number of geographic position estimates are distributed by assigning to each geographic area portion a respective number of geographic position estimates. Covered geographic portions are determined among said plurality of geographic area portions, and each one of the determined covered geographic area portions is assigned a respective weight. A correspondence map establishing a correspondence between the network cells and the geographic zones is generated, and the weights are used in computing the matrices.

公开(公告)号：US20230319508A1

公开(公告)日：2023-10-05

申请号：US17999692

申请日：2021-05-18

Applicant: TELECOM ITALIA S.p.A.

Inventor： Massimo COLONNA ,  Piero LOVISOLO ,  Dario PARATA ,  Massimiliano PETRA

IPC: H04W4/029 ,  H04W4/021

CPC classification number: H04W4/029 ,  H04W4/021

Abstract: A method including subdividing a geographic area of interest in geographic zones; subdividing the geographic area of interest in geographic area portions; causing mobile communication terminals situated in the geographic area of interest to calculate respective geographic position estimates; distributing an overall number of geographic position estimates; receiving indications of events of interaction between the mobile communication terminals and network cells; identifying, for each one of the stored indications of events of interaction, the network cell in which the event of interaction occurred; building an array of presences in which each geographic zone has assigned thereto a respective indication of a respective number of events of interaction occurred in the identified network cells which have, in the geographic zone, a cell weight greater than a predetermined cell weight value, and providing the array of presences in output for estimating presence of individuals on a territory.

公开(公告)号：US20230239832A1

公开(公告)日：2023-07-27

申请号：US17999624

申请日：2021-05-18

Applicant: TELECOM ITALIA S.p.A.

Inventor： Massimo COLONNA ,  Piero LOVISOLO ,  Dario PARATA ,  Massimiliano PETRA

IPC: H04W64/00 ,  H04W68/00 ,  H04W68/10

CPC classification number: H04W64/003 ,  H04W68/005 ,  H04W68/10

Abstract: A method distributes cell-level aggregated data available from a mobile communication network and aggregated at the level of single network cells. The method subdivides a geographic area in geographic area portions, and causes mobile terminals situated in the geographic area to calculate and provide respective geographic position estimates to a data processing system. An overall number of geographic position estimates are distributed by assigning to each geographic area portion a respective number of geographic position estimates. Cell-level aggregated data relating to a network cell is received, and for each network cell, covered geographic area portions are determined. The cell-level aggregated data of the network cell is distributed according to a respective distribution factor. A distribution map of the cell-level aggregated data is generated in which to each of the geographic area portions of the geographic area of interest a respective quota of the cell-level aggregated data is assigned.