WO2019219572A1 - Method for using a positioning information of a user equipment in a mobile communication network, wherein a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, mobile communication network, system, computer program and computer-readable medium - Google Patents

Method for using a positioning information of a user equipment in a mobile communication network, wherein a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, mobile communication network, system, computer program and computer-readable medium Download PDF

Info

Publication number
WO2019219572A1
WO2019219572A1 PCT/EP2019/062151 EP2019062151W WO2019219572A1 WO 2019219572 A1 WO2019219572 A1 WO 2019219572A1 EP 2019062151 W EP2019062151 W EP 2019062151W WO 2019219572 A1 WO2019219572 A1 WO 2019219572A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning information
user equipment
mobile communication
information
communication network
Prior art date
Application number
PCT/EP2019/062151
Other languages
French (fr)
Inventor
Arndt Kadelka
Johannes Springer
Original Assignee
Deutsche Telekom Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Telekom Ag filed Critical Deutsche Telekom Ag
Priority to EP19722906.5A priority Critical patent/EP3794849A1/en
Publication of WO2019219572A1 publication Critical patent/WO2019219572A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
    • G01S19/215—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service issues related to spoofing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/10—Integrity
    • H04W12/104—Location integrity, e.g. secure geotagging

Definitions

  • Method for using a positioning information of a user equipment in a mobile communication network wherein a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, mobile communication network, system, computer program and computer-readable medium
  • the present invention relates to a method for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the user equipment comprises a GNSS receiver entity used to generate the positioning information.
  • the present invention relates to a corresponding mobile
  • a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information.
  • the present invention relates to a corresponding system for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, the system comprising the mobile communication network and the user equipment.
  • the present invention relates to a corresponding computer program and computer-readable medium to perform the inventive method.
  • the position of a user equipment - e.g. a mobile phone or a smartphone or a tablet computer or another mobile device being able to determine a positioning information using a GNSS (global navigation satellite system) receiver - may be determined by the user equipment itself.
  • GNSS global navigation satellite system
  • Conventionally known user equipments are usually provided with satellite navigation system receivers (or global navigation satellite system receivers) for determining geo-positioning information.
  • GNSS services as provided by the United States GPS (Global Positioning System), the Russian GLONASS and the European Galileo systems have become a broadly applied base for countless applications, in consumer use cases as well as in business use cases, making use of geo-position information (or positioning information).
  • Technology advances provide solutions to drive positioning accuracy from meter to centimeter level and will drive GNSS usage even further.
  • GNSS positioning is becoming relevant for safety and security related use cases, e.g. autonomous driving, currently developed by automotive industry, or regarding aerial objects like drones.
  • An object of the present invention is to provide a method for using a positioning information of a user equipment (especially a positioning information generated solely or in part by using a global navigation satellite system) in a mobile communication network such that by means of using a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - it is possible to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information.
  • a positioning information of a user equipment especially a positioning information generated solely or in part by using a global navigation satellite system
  • the object of the present invention is achieved by a method for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the user equipment comprises a GNSS receiver entity used to generate the positioning information,
  • an integrity processing unit - -- being located at or as part of the user equipment and/or
  • the further positioning information comprises an indication regarding the position of the user equipment
  • the integrity processing unit is provided with both the positioning information and the further positioning information
  • the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
  • the object of the present invention is furthermore also achieved by a method for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the user equipment comprises a GNSS receiver entity used to generate the positioning information, wherein an integrity processing unit - -- being located at or as part of the user equipment and/or
  • the integrity processing unit is provided with both the positioning information and the further positioning information
  • the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
  • the present invention it is proposed to verify the positioning integrity and reliability of the positioning information - generated, within the user equipment device, solely or in part by using a global navigation satellite system - by means of an information (further positioning information) provided by or obtainable from a mobile network service, i.e. a service of the mobile communication network (that the user equipment is using or that it is connected to).
  • a mobile network service i.e. a service of the mobile communication network (that the user equipment is using or that it is connected to).
  • the mobile communication network i.e. a positioning information entity of or related with the mobile communication network
  • This further positioning information may, e.g., be obtained by the mobile communication network (i.e. by a network- based positioning procedure) or from other specific positioning information available located in the mobile communication network or in a cloud server connected to or accessible via the mobile communication network.
  • integrity validation is able to be performed via SBAS (Satellite Based Augmentation System), thereby providing the possibility to calculate Protection Levels and to set Alarm Limits so that epochs of system-unavailability can be detected.
  • SBAS Systematellite Based Augmentation System
  • approaches of integrity validation might also be applied for precise positioning techniques like PPP (Precise Point Positioning) or RTK (Real Time Kinematic).
  • PPP Precision Point Positioning
  • RTK Real Time Kinematic
  • Jamming is the act of intentionally directing electromagnetic energy towards a
  • GNSS jammers broadcast their interference signal in the frequency band used for satellite navigation.
  • a jammer attack can be categorized as a denial of service - the GNSS is still available but its broadcast signals are totally exceeded by the jammer power.
  • present-day mobile communication networks provide solutions to gather positioning information of user equipments without using satellite navigation
  • mobile communication networks allow to derive positioning information of user equipments using alternative sources of information, e.g. by analyzing measurements carried out by network elements (of the mobile communication network), e.g. by base stations such as NB (NodeB) or eNB (enhanced NodeB).
  • network elements e.g. by base stations such as NB (NodeB) or eNB (enhanced NodeB).
  • NB NodeB
  • eNB enhanced NodeB
  • the integrity of the positioning information generated by the user equipment based on the GNSS position is validated against (further) positioning information being available in the (publicly available) mobile network or mobile communication network, wherein ubiquitous connectivity allows to get access to positioning information and service, respectively.
  • this validation may be carried out on the network side or on the user side (i.e. the integrity processing unit being either located on the user side or on the network side).
  • the integrity processing unit is located at or as part of the user equipment, and especially involves a client-side validation and/or a client-side integrity determination.
  • the integrity processing unit is part of or related to the mobile communication network, and especially involves a
  • the first step involves providing the integrity processing unit with both the positioning information and the further positioning information
  • the second step involves the integrity processing unit either validating the positioning information and/or generating an integrity information based on both the positioning information and the further positioning information.
  • the first step comprises transmitting the further positioning information from the mobile communication network to the user equipment (as the integrity processing unit is located at or as part of the user equipment).
  • the further positioning information especially comprises one or a plurality of the following:
  • the first step comprises transmitting the positioning information from the user equipment to the mobile communication network (as the integrity processing unit is part of or related to the mobile communication network).
  • the further positioning information especially comprises one or a plurality of the following:
  • the further positioning information comprises an indication regarding the position of the user equipment, i.e. an indication regarding the position of the user equipment obtained by means of using alternative sources of positioning information (i.e. especially positioning information obtained by analyzing measurements carried out by network elements of the mobile communication network, e.g. by base stations).
  • alternative sources of positioning information i.e. especially positioning information obtained by analyzing measurements carried out by network elements of the mobile communication network, e.g. by base stations.
  • the integrity processing unit validates the position accuracy of the positioning information, wherein at least one or a plurality of the following is applied as part of the second step:
  • the positioning information and/or the further positioning information are combined with positioning information obtained from other functions, especially from an inertial measurement unit as part of the user equipment and/or from a barometer unit as part of the user equipment.
  • the mobile communication network provides complementing positioning information, i.e. further positioning information, compared to the positioning information obtained using a global navigation satellite system receiver.
  • This complementing positioning information is provided to the user equipment (UE) in case of user side validation (first general implementation), that applies or uses a mobile network modem in addition to the GNSS receiver, and the integrity processing unit (IPU) (located at or as part of the user equipment) is able to validate the position data obtained from the GNSS receiver by the position data (further positioning information) obtained from the mobile network modem.
  • UE user equipment
  • IPU integrity processing unit
  • the integrity processing unit is a function of provided by the mobile communication network (second general implementation)
  • the GNSS positioning data needs to be conveyed to the network-based integrity processing unit.
  • the information transfer can be provided by procedures that are already defined, e.g., in the context of the”LTE Positioning Protocoil (LPP)”, 3GPP TS 36.366, V. 14.4.0.
  • a third step subsequent to the second step, and based on the result of the validation of the positioning information and/or based on the integrity information, an alert alarm is raised in case that a difference between the positioning information and the further positioning information is calculated or determined to exceed a predefined threshold value and/or in case that an integrity value and/or a reliability value associated to the positioning information is calculated or determined to be insufficient.
  • the invention relates to and the object of the present invention is achieved by a mobile communication network for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein user equipment comprises a GNSS receiver entity used to generate the positioning information,
  • an integrity processing unit - -- being located at or as part of the user equipment and/or
  • the further positioning information comprises an indication regarding the position of the user equipment
  • the mobile communication network is configured such that:
  • the integrity processing unit is provided with both the positioning information and the further positioning information
  • the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
  • the invention furthermore also relates to and the object of the present invention is achieved by a mobile communication network for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein user equipment comprises a GNSS receiver entity used to generate the positioning information,
  • an integrity processing unit - -- being located at or as part of the user equipment and/or
  • the mobile communication network is configured such that:
  • the integrity processing unit is provided with both the positioning information and the further positioning information
  • the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
  • the mobile communication network provides complementing positioning information, i.e. the further positioning information, compared to the positioning information obtained, at the user equipment, using a global navigation satellite system receiver.
  • the object of the present invention is achieved by and the invention relates to a system for using a positioning information of a user equipment in a mobile communication network , wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the system comprises the mobile communication network and the user equipment, wherein user equipment comprises a GNSS receiver entity used to generate the positioning information,
  • an integrity processing unit - -- being located at or as part of the user equipment and/or
  • the further positioning information comprises an indication regarding the position of the user equipment
  • the mobile communication network is configured such that:
  • the integrity processing unit is provided with both the positioning information and the further positioning information
  • the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
  • the object of the present invention is furthermore also achieved by and the invention relates to a system for using a positioning information of a user equipment in a mobile communication network , wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the system comprises the mobile communication network and the user equipment, wherein user equipment comprises a GNSS receiver entity used to generate the positioning information,
  • an integrity processing unit - -- being located at or as part of the user equipment and/or
  • the mobile communication network is configured such that:
  • the integrity processing unit is provided with both the positioning information and the further positioning information
  • the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
  • the mobile communication network provides complementing positioning information, i.e. the further positioning information, compared to the positioning information obtained, at the user equipment, using a global navigation satellite system receiver.
  • the present invention relates to a computer program comprising a computer readable program code which, when executed on a computer or on a server or a network node of a mobile communication network or on a user equipment or in part on a server or a network node of the mobile communication network and in part on a user equipment, causes the server or the network node of the mobile communication network and/or the user equipment to perform a method as described before.
  • the present invention relates to a computer-readable medium comprising instructions which when executed on a computer or on a server or a network node of a mobile communication network or on a user equipment or in part on a server or a network node of the mobile communication network and in part on a user equipment, causes the server or the network node of the mobile communication network and/or the user equipment to perform a method as described before.
  • Figure 1 schematically illustrates an embodiment of a system according to the present invention, realizing the first implementation according to the present invention.
  • Figure 2 schematically illustrates an embodiment of a system according to the present invention, realizing the second implementation according to the present invention.
  • FIG. 3 schematically illustrates an integrity processing unit used according to the present invention.
  • an inventive system according to the present invention is schematically shown, the system comprising a mobile communication network 100, and a user equipment 20 being connected to the mobile communication network 100.
  • the mobile communication network 100 comprises a (mobile) access network or a radio access network as well as a core network; however, neither the radio access network nor the core network are explicitly shown (and designated by reference signs) in Figures 1 and 2; only a couple of base station entities, schematically representing the radio access network, are schematically shown.
  • the user equipment 20 uses the mobile communication network 100 for communication purposes, especially communication services being provided by the mobile communication network 100, such as internet connectivity, phone calls, instant messaging or the like.
  • the user equipment 20 comprises a network
  • the mobile communication network 100 acts as home mobile communication network or home public land mobile network to the user equipment 20.
  • the mobile communication network 100 acts as visited mobile
  • the user equipment 20 i.e. the user equipment 20 is connected (or able to be connected) to the mobile communication network 100 as a roaming user equipment 20.
  • the user equipment 20 comprises a global navigation satellite system (GNSS) receiver entity 21 used to generate a positioning information 1 1.
  • the user equipment 20 might comprise further sensors or components or modules, such sensors or components or modules generating data or information also involved (i.e. such generated data or information are used in addition to output data of the global navigation satellite system receiver entity 21 ) in generating the positioning information 1 1.
  • the positioning information 11 is generated based solely or at least in part by using the global navigation satellite system and the global navigation satellite system receiver entity 21.
  • the mobile communication network 100 comprises or is related to (especially: is able to access) a positioning information entity 130 providing a further positioning information 12, especially a further positioning information 12 related to the user equipment 20.
  • the positioning information 1 1 and the further positioning information 12 are provided to (or fed to) an integrity processing unit 150, the integrity processing unit 150 being configured to validate the positioning information 11 and/or to generate the integrity information 200.
  • the further positioning information 12 it is advantageously possible according to the present invention to verify the positioning integrity and reliability of the positioning information 1 1 that is generated, within the user equipment 20, solely or in part by using a global navigation satellite system.
  • the further positioning information 12 is provided by or obtainable from a mobile network service, i.e. a service of the mobile communication network 100 (that the user equipment 20 is using or that it is connected to).
  • the integrity processing unit 150 in a first step, is provided with both the positioning information 1 1 and the further positioning information 12, and in a second step, subsequent to the first step, the integrity processing unit 150 either validates the positioning information 11 , or generates an integrity information 200, or both validates the positioning information 11 and generates the integrity information 200, all of this being done based on both the positioning information 1 1 and the further positioning information 12.
  • the positioning data (or positioning information) obtained by the GNSS receiver 21 on the side of the user equipment 20 is able to be validated by information or data obtained on the side of the mobile communication network 100.
  • the integrity processing unit 150 is located, two basically different implementations or alternative solutions of the present invention are conceivable.
  • FIG. 1 a system realizing a first implementation according to the present invention is schematically shown.
  • the integrity processing unit 150 is located at or as part of the user equipment 20, and both the positioning information 1 1 and the further positioning information 12 are fed to (or provided to) the integrity processing unit 150, hence the further positioning information 12 needs to be transmitted or transported to the integrity processing unit 150, i.e. from the mobile communication network 100 towards the user equipment 20.
  • the first step comprises transmitting the further positioning information 12 from the mobile communication network 100 to the user equipment 20.
  • the further positioning information 12 especially comprises one or a plurality of the following data or pieces of information:
  • FIG. 2 a system realizing a second implementation according to the present invention is schematically shown.
  • the integrity processing unit 150 is part of or related to the mobile communication network 100, and both the positioning information 11 and the further positioning information 12 are fed to (or provided to) the integrity processing unit 150, hence the positioning information 1 1 needs to be transmitted or transported to the integrity processing unit 150, i.e. from the user equipment 20 towards the mobile
  • the first step comprises transmitting the positioning information 1 1 from the user equipment 20 to the mobile communication network 100.
  • the positioning information 1 1 especially comprises one or a plurality of the following data or pieces of information:
  • the further positioning information 12 provided by the mobile network may contain various information elements, such as:
  • the mobile network positioning information (or further positioning information 12) is either provided to the user equipment 20 in case that the integrity processing unit 150 resides in the user equipment 20 (first implementation of the present invention), or transferred within the mobile communication network 100 in case that the integrity processing unit 150 is located in the mobile communication network 100.
  • the positioning information 11 from the user equipment 20 is transferred to the mobile communication network 100, this positioning information 11 especially comprising:
  • a GNSS position typically obtained after processing the satellite signals obtained by the GNSS receiver 21 by a positioning engine, with or without information on uncertainties, and/or
  • the integrity processing unit 150 Upon the further positioning information 12 from the mobile communication network 100 and the position information 1 1 from the GNSS receiver 21 , the integrity processing unit 150 is able to validate the position accuracy obtained by the GNSS receiver 21 in the user equipment 20.
  • Figure 3 shows the integrity processing unit 150 used according to the present invention: The integrity processing unit 150 is configured to either validate the positioning information 11 (by means of using the further positioning information 12), or to generate the integrity information 200 (based on both the positioning information 1 1 and the further positioning information 12), or to both validate the positioning information 11 and to generate the integrity information 200.
  • the integrity processing unit 150 could be part of that home mobile communication network 100 (and be used as integrity processing unit 150) according to the second implementation of the present invention, and the mobile communication network 100 provides the further positioning information 12 according to the first implementation of the present invention.
  • the integrity processing unit 150 could - according to the second implementation of the present invention - either be part of that (visited) mobile communication network 100, or be part of the home mobile communication network (being connected to the mobile communication network 100 serving as visited mobile communication network).
  • the further positioning information 12 can either be provided by the mobile communication network 100 (serving as visited mobile
  • the integrity processing unit 150 evaluation results in an alert alarm.
  • an indication such as, e.g., a message weightsystem unavailable" or the like
  • the integrity processing unit 150 has the meaning that the current positioning information 1 1 provided by the GNSS receiver 21 is not reliable. Otherwise (i.e. in case that such an alarm alert is not raised or an alarm limit is not surpassed or exceeded), the information provided by the GNSS receiver 21 is considered to be reliable and notified as such.
  • the respective parameters such as a value or a threshold of the alert limit needs to be available at the integrity processing unit 150 residing on either user side or network side.
  • a value or a threshold of the alert limit may be either stored on either side or communicated during user equipment-to-network information exchange, or vice versa.
  • the mobile communication network 100 can derive the position of the user equipment 20 from performing radio frequency or other measurements on the mobile network modem 22 of the user equipment 20 or carried out on network side. Thereby the antennas of the GNSS receiver 21 and the antennas of the mobile network modem 21 have to be located at the same or roughly the same location, when not using the same antenna. When there is a position offset between the GNSS and mobile network modem antenna locations, this offset might be needed to be known by the integrity processing unit 150, to eliminate calculation errors.
  • the further positioning information 12 according to the present invention may be fed from another source and stored in a data base at network side or in the cloud.
  • This data may be static or changed by user intervention or changed by an automated process.
  • the positioning information regarding the user equipment 20 might be available from an object-recognition-and- localization system accessible from a cloud or network server and/or by a mobile network service. This information may be as well provided by the proposed solution to the integrity processing unit 150 to support GNSS position integrity validation.

Abstract

The invention relates to a method for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information –determined or provided by a positioning information entity of or related with the mobile communication network –is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the user equipment comprises a GNSS receiver entity used to generate the positioning information, wherein an integrity processing unit – -- being located at or as part of the user equipment and/or -- as part of or related to the mobile communication network – is configured to validate the positioning information and/or to generate the integrity information, wherein the further positioning information comprises an indication regarding the position of the user equipment, wherein the method comprises the following steps: -- in a first step, the integrity processing unit is provided with both the positioning information and the further positioning information, -- in a second step, subsequent to the first step, the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.

Description

Method for using a positioning information of a user equipment in a mobile communication network, wherein a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, mobile communication network, system, computer program and computer-readable medium
BACKGROUND
[0001] The present invention relates to a method for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the user equipment comprises a GNSS receiver entity used to generate the positioning information.
[0002] Furthermore, the present invention relates to a corresponding mobile
communication network, wherein in addition to using the positioning information, a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information.
[0003] Additionally, the present invention relates to a corresponding system for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, the system comprising the mobile communication network and the user equipment.
[0004] Furthermore, the present invention relates to a corresponding computer program and computer-readable medium to perform the inventive method.
[0005] In mobile communication networks, the position of a user equipment - e.g. a mobile phone or a smartphone or a tablet computer or another mobile device being able to determine a positioning information using a GNSS (global navigation satellite system) receiver - may be determined by the user equipment itself. Conventionally known user equipments are usually provided with satellite navigation system receivers (or global navigation satellite system receivers) for determining geo-positioning information.
[0006] GNSS services as provided by the United States GPS (Global Positioning System), the Russian GLONASS and the European Galileo systems have become a broadly applied base for countless applications, in consumer use cases as well as in business use cases, making use of geo-position information (or positioning information). Technology advances provide solutions to drive positioning accuracy from meter to centimeter level and will drive GNSS usage even further.
[0007] As omni-present and available service, GNSS positioning is becoming relevant for safety and security related use cases, e.g. autonomous driving, currently developed by automotive industry, or regarding aerial objects like drones.
[0008] Hence, the integrity and reliability of the position information (or positioning information) provided by GNSS receivers used in user equipments gets increasing importance. Though there are attempts to provide integrity information from within such GNSS services themselves, this is not sufficient: there are still means to corrupt such GNSS services, such as global navigation satellite system jamming and/or global navigation satellite system spoofing.
SUMMARY
[0009] An object of the present invention is to provide a method for using a positioning information of a user equipment (especially a positioning information generated solely or in part by using a global navigation satellite system) in a mobile communication network such that by means of using a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - it is possible to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information.
[0010] The object of the present invention is achieved by a method for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the user equipment comprises a GNSS receiver entity used to generate the positioning information,
wherein an integrity processing unit - -- being located at or as part of the user equipment and/or
-- as part of or related to the mobile communication network - is configured to validate the positioning information and/or to generate the integrity information,
wherein the further positioning information comprises an indication regarding the position of the user equipment,
wherein the method comprises the following steps:
-- in a first step, the integrity processing unit is provided with both the positioning information and the further positioning information,
-- in a second step, subsequent to the first step, the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
[0011] The object of the present invention is furthermore also achieved by a method for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the user equipment comprises a GNSS receiver entity used to generate the positioning information, wherein an integrity processing unit - -- being located at or as part of the user equipment and/or
-- as part of or related to the mobile communication network - is configured to validate the positioning information and/or to generate the integrity information,
wherein the method comprises the following steps:
-- in a first step, the integrity processing unit is provided with both the positioning information and the further positioning information,
-- in a second step, subsequent to the first step, the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
[0012] According to the present invention, it is proposed to verify the positioning integrity and reliability of the positioning information - generated, within the user equipment device, solely or in part by using a global navigation satellite system - by means of an information (further positioning information) provided by or obtainable from a mobile network service, i.e. a service of the mobile communication network (that the user equipment is using or that it is connected to). Thereby, the positioning data (or positioning information) obtained by a GNSS receiver on the side of the user equipment is able to be validated on the side of the mobile communication network.
For this method, the mobile communication network (i.e. a positioning information entity of or related with the mobile communication network) can combine all available positioning information in order to obtain a further positioning information. This further positioning information may, e.g., be obtained by the mobile communication network (i.e. by a network- based positioning procedure) or from other specific positioning information available located in the mobile communication network or in a cloud server connected to or accessible via the mobile communication network.
[0013] In conventional global navigation satellite systems or methods based thereon, integrity validation is able to be performed via SBAS (Satellite Based Augmentation System), thereby providing the possibility to calculate Protection Levels and to set Alarm Limits so that epochs of system-unavailability can be detected. Additionally, approaches of integrity validation might also be applied for precise positioning techniques like PPP (Precise Point Positioning) or RTK (Real Time Kinematic). However, all these approaches of conventional global navigation satellite systems are based on global navigation satellite system-intrinsic solutions, potentially being victim of methods designed to corrupt the entire GNSS service, such as global navigation satellite system jamming and/or global navigation satellite system spoofing.
Jamming is the act of intentionally directing electromagnetic energy towards a
communication (and navigation) system to disrupt or prevent signal transmission. Thus, GNSS jammers broadcast their interference signal in the frequency band used for satellite navigation. A jammer attack can be categorized as a denial of service - the GNSS is still available but its broadcast signals are totally exceeded by the jammer power.
Spoofing of GNSS signals is the broadcast of false signals with the intent that the victim receiver will misinterpret them as authentic signals. The victim might deduce a false position fix, a false clock offset, or both. This is called„RF Spoofing". Also„Cyber Spoofing" has been demonstrated, whereby - instead of a false GNSS signal being mimicked (as in the„RF Spoofing" case) - the positioning result provided by the GNSS receiver is compromised, either directly in the receiver firmware or on its path to consuming entities (within the user equipment concerned). [0014] Typically, positioning using a global navigation satellite system is designed to be comparatively highly accurate. However, due to the positioning information being potentially relevant for safety and security related use cases, questions related to the integrity and reliability of such positioning information provided by GNSS receivers in user equipments become more important. Consequently, gathering positioning information relying on the sole use of satellite navigation systems is unsufficient.
[0015] As present-day mobile communication networks provide solutions to gather positioning information of user equipments without using satellite navigation, such mobile communication networks allow to derive positioning information of user equipments using alternative sources of information, e.g. by analyzing measurements carried out by network elements (of the mobile communication network), e.g. by base stations such as NB (NodeB) or eNB (enhanced NodeB). Those networks usually comprise a location server that determines positioning information for the user equipment based on specific measurement data. Hence, according to the present invention, the integrity of the positioning information generated by the user equipment based on the GNSS position is validated against (further) positioning information being available in the (publicly available) mobile network or mobile communication network, wherein ubiquitous connectivity allows to get access to positioning information and service, respectively. According to the present invention, this validation may be carried out on the network side or on the user side (i.e. the integrity processing unit being either located on the user side or on the network side).
[0016] Hence, according to the present invention, two general implementations (or alternatives) of the proposed method are relevant: According to a first implementation (or first alternative), the integrity processing unit is located at or as part of the user equipment, and especially involves a client-side validation and/or a client-side integrity determination.
According to a second implementation (or second alternative), the integrity processing unit is part of or related to the mobile communication network, and especially involves a
network-side validation and/or a network-side integrity determination.
[0017] According to both implementations of the inventive method, the first step involves providing the integrity processing unit with both the positioning information and the further positioning information, and the second step involves the integrity processing unit either validating the positioning information and/or generating an integrity information based on both the positioning information and the further positioning information.
Due to the different location of the integrity processing unit according to the different implementations, according to the first implementation (or first alternative), the first step comprises transmitting the further positioning information from the mobile communication network to the user equipment (as the integrity processing unit is located at or as part of the user equipment). In this case (i.e. especially according to the first implementation of the invention), the further positioning information especially comprises one or a plurality of the following:
-- an indication regarding the position of the user equipment,
-- an accuracy information related to the further positioning information,
-- an integrity information related to the further positioning information,
-- an information supporting the integrity validation of the positioning information, especially the integrity validation of GNSS signals used by the user equipment.
Likewise due to the different location of the integrity processing unit according to the different implementations, according to the second implementation (or second alternative), the first step comprises transmitting the positioning information from the user equipment to the mobile communication network (as the integrity processing unit is part of or related to the mobile communication network). In this case (i.e. especially according to the second implementation of the invention), the further positioning information especially comprises one or a plurality of the following:
-- an indication regarding the position of the user equipment especially the GNSS position, and especially after processing satellite signals obtained from the GNSS receiver entity, especially by a positioning engine,
-- a GNSS measurement list obtained from the GNSS receiver entity.
[0018] Especially according to at least specific variants of the present invention - according to either the first implementation or according to the second implementation -, the further positioning information comprises an indication regarding the position of the user equipment, i.e. an indication regarding the position of the user equipment obtained by means of using alternative sources of positioning information (i.e. especially positioning information obtained by analyzing measurements carried out by network elements of the mobile communication network, e.g. by base stations).
[0019] According to both general implementations (or alternatives) of the proposed method, it is preferred according to the present invention that, as part of the second step, the integrity processing unit validates the position accuracy of the positioning information, wherein at least one or a plurality of the following is applied as part of the second step:
-- one or a plurality of individual positioning data elements, obtained as part of the positioning information and/or as part of the further positioning information, are processed,
-- the trajectory of the user equipment and/or related positioning information, especially previous positioning data, is considered,
-- the positioning information and/or the further positioning information are combined with positioning information obtained from other functions, especially from an inertial measurement unit as part of the user equipment and/or from a barometer unit as part of the user equipment.
[0020] According to the present invention (according to both general implementations (or alternatives) of the proposed method) it is advantageously possible that jamming attacks on the global navigation satellite system can be detected or fought, as, typically, mobile networks operate in multiple frequency bands, e.g. at 800MHz, 900MHz, 1800/1900MHz, 2600MHz, etc. such that even in case of wide-band jammers their impact will be lower, since base station signals of mobile networks can be received with higher signal strength than GNSS signals at the receiver (i.e. the user equipment).
Additionally, information transmitted by the mobile communication network cannot be compromised without an extremely high effort, since mature security and encryption mechanisms are applied.
[0021] Hence according to both general implementations (or alternatives) of the proposed solution, the mobile communication network provides complementing positioning information, i.e. further positioning information, compared to the positioning information obtained using a global navigation satellite system receiver. This complementing positioning information is provided to the user equipment (UE) in case of user side validation (first general implementation), that applies or uses a mobile network modem in addition to the GNSS receiver, and the integrity processing unit (IPU) (located at or as part of the user equipment) is able to validate the position data obtained from the GNSS receiver by the position data (further positioning information) obtained from the mobile network modem. In case that the integrity processing unit is a function of provided by the mobile communication network (second general implementation), the GNSS positioning data needs to be conveyed to the network-based integrity processing unit. The information transfer can be provided by procedures that are already defined, e.g., in the context of the”LTE Positioning Protocoil (LPP)”, 3GPP TS 36.366, V. 14.4.0.
[0022] According to both general implementations (or alternatives) of the proposed method, it is preferred according to the present invention that in a third step, subsequent to the second step, and based on the result of the validation of the positioning information and/or based on the integrity information, an alert alarm is raised in case that a difference between the positioning information and the further positioning information is calculated or determined to exceed a predefined threshold value and/or in case that an integrity value and/or a reliability value associated to the positioning information is calculated or determined to be insufficient. [0023] According to the present invention (according to both general implementations (or alternatives) of the proposed method), by raising an alert alarm in case that a difference between the positioning information and the further positioning information is calculated or determined to exceed a predefined threshold value and/or in case that an integrity value and/or a reliability value associated to the positioning information is calculated or determined to be insufficient, it is advantageously possible that attacks or failures of the positioning procedure based (solely) on the global navigation satellite system (or solely on information and/or measurements performed by the user equipment) can be detected.
[0024] Additionally, the invention relates to and the object of the present invention is achieved by a mobile communication network for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein user equipment comprises a GNSS receiver entity used to generate the positioning information,
wherein an integrity processing unit - -- being located at or as part of the user equipment and/or
-- as part of or related to the mobile communication network - is configured to validate the positioning information and/or to generate the integrity information,
wherein the further positioning information comprises an indication regarding the position of the user equipment,
wherein the mobile communication network is configured such that:
-- the integrity processing unit is provided with both the positioning information and the further positioning information,
-- the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
[0025] Additionally, the invention furthermore also relates to and the object of the present invention is achieved by a mobile communication network for using a positioning information of a user equipment in a mobile communication network, wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein user equipment comprises a GNSS receiver entity used to generate the positioning information,
wherein an integrity processing unit - -- being located at or as part of the user equipment and/or
-- as part of or related to the mobile communication network - is configured to validate the positioning information and/or to generate the integrity information,
wherein the mobile communication network is configured such that:
-- the integrity processing unit is provided with both the positioning information and the further positioning information,
-- the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
[0026] By means of the inventive mobile communication network, it is thereby advantageously possible according to both general implementations (or alternatives) of the proposed solution that the mobile communication network provides complementing positioning information, i.e. the further positioning information, compared to the positioning information obtained, at the user equipment, using a global navigation satellite system receiver.
[0027] Additionally, the object of the present invention is achieved by and the invention relates to a system for using a positioning information of a user equipment in a mobile communication network , wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the system comprises the mobile communication network and the user equipment, wherein user equipment comprises a GNSS receiver entity used to generate the positioning information,
wherein an integrity processing unit - -- being located at or as part of the user equipment and/or
-- as part of or related to the mobile communication network - is configured to validate the positioning information and/or to generate the integrity information,
wherein the further positioning information comprises an indication regarding the position of the user equipment,
wherein the mobile communication network is configured such that:
-- the integrity processing unit is provided with both the positioning information and the further positioning information,
-- the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
[0028] Additionally, the object of the present invention is furthermore also achieved by and the invention relates to a system for using a positioning information of a user equipment in a mobile communication network , wherein in addition to using the positioning information, a further positioning information - determined or provided by a positioning information entity of or related with the mobile communication network - is used, the further positioning information being used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, wherein the system comprises the mobile communication network and the user equipment, wherein user equipment comprises a GNSS receiver entity used to generate the positioning information,
wherein an integrity processing unit - -- being located at or as part of the user equipment and/or
-- as part of or related to the mobile communication network - is configured to validate the positioning information and/or to generate the integrity information,
wherein the mobile communication network is configured such that:
-- the integrity processing unit is provided with both the positioning information and the further positioning information,
-- the integrity processing unit either validates the positioning information and/or generates an integrity information based on both the positioning information and the further positioning information.
[0029] By means of the inventive system, it is thereby advantageously possible according to both general implementations (or alternatives) of the proposed solution that the mobile communication network provides complementing positioning information, i.e. the further positioning information, compared to the positioning information obtained, at the user equipment, using a global navigation satellite system receiver.
[0030] Additionally, the present invention relates to a computer program comprising a computer readable program code which, when executed on a computer or on a server or a network node of a mobile communication network or on a user equipment or in part on a server or a network node of the mobile communication network and in part on a user equipment, causes the server or the network node of the mobile communication network and/or the user equipment to perform a method as described before.
[0031] Furthermore, the present invention relates to a computer-readable medium comprising instructions which when executed on a computer or on a server or a network node of a mobile communication network or on a user equipment or in part on a server or a network node of the mobile communication network and in part on a user equipment, causes the server or the network node of the mobile communication network and/or the user equipment to perform a method as described before.
[0032] These and other characteristics, features and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention. The description is given for the sake of example only, without limiting the scope of the invention. The reference figures quoted below refer to the attached drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 schematically illustrates an embodiment of a system according to the present invention, realizing the first implementation according to the present invention.
[0034] Figure 2 schematically illustrates an embodiment of a system according to the present invention, realizing the second implementation according to the present invention.
[0035] Figure 3 schematically illustrates an integrity processing unit used according to the present invention.
DETAILED DESCRIPTION
[0036] The present invention will be described with respect to particular embodiments and with reference to certain drawings but the invention is not limited thereto but only by the claims. The drawings described are only schematic and are non-limiting. In the drawings, the size of some of the elements may be exaggerated and not drawn on scale for illustrative purposes. [0037] Where an indefinite or definite article is used when referring to a singular noun, e.g.“a”,“an”,“the”, this includes a plural of that noun unless something else is specifically stated.
[0038] Furthermore, the terms first, second, third and the like in the description and in the claims are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and that the embodiments of the invention described herein are capable of operation in other sequences than described or illustrated herein.
[0039] In both Figures 1 and 2, an inventive system according to the present invention is schematically shown, the system comprising a mobile communication network 100, and a user equipment 20 being connected to the mobile communication network 100. Typically and conventionally, the mobile communication network 100 comprises a (mobile) access network or a radio access network as well as a core network; however, neither the radio access network nor the core network are explicitly shown (and designated by reference signs) in Figures 1 and 2; only a couple of base station entities, schematically representing the radio access network, are schematically shown. The user equipment 20 uses the mobile communication network 100 for communication purposes, especially communication services being provided by the mobile communication network 100, such as internet connectivity, phone calls, instant messaging or the like. For the purposes of this communication with the mobile communication network 100, the user equipment 20 comprises a network
communication device or module, such as a mobile network modem 22, schematically shown in both Figures 1 and 2. Typically, the mobile communication network 100 acts as home mobile communication network or home public land mobile network to the user equipment 20. Alternatively, the mobile communication network 100 acts as visited mobile
communication network or visited public land mobile network to the user equipment 20 (i.e. the user equipment 20 is connected (or able to be connected) to the mobile communication network 100 as a roaming user equipment 20.
[0040] Furthermore, in both Figures 1 and 2 the user equipment 20 comprises a global navigation satellite system (GNSS) receiver entity 21 used to generate a positioning information 1 1. The user equipment 20 might comprise further sensors or components or modules, such sensors or components or modules generating data or information also involved (i.e. such generated data or information are used in addition to output data of the global navigation satellite system receiver entity 21 ) in generating the positioning information 1 1. Hence, the positioning information 11 is generated based solely or at least in part by using the global navigation satellite system and the global navigation satellite system receiver entity 21.
[0041] Furthermore, in both Figures 1 and 2, the mobile communication network 100 comprises or is related to (especially: is able to access) a positioning information entity 130 providing a further positioning information 12, especially a further positioning information 12 related to the user equipment 20.
[0042] According to the present invention, the positioning information 1 1 and the further positioning information 12 are provided to (or fed to) an integrity processing unit 150, the integrity processing unit 150 being configured to validate the positioning information 11 and/or to generate the integrity information 200. Thereby, and by means of using the further positioning information 12, it is advantageously possible according to the present invention to verify the positioning integrity and reliability of the positioning information 1 1 that is generated, within the user equipment 20, solely or in part by using a global navigation satellite system. The further positioning information 12 is provided by or obtainable from a mobile network service, i.e. a service of the mobile communication network 100 (that the user equipment 20 is using or that it is connected to).
[0043] Hence according to the present invention, in a first step, the integrity processing unit 150 is provided with both the positioning information 1 1 and the further positioning information 12, and in a second step, subsequent to the first step, the integrity processing unit 150 either validates the positioning information 11 , or generates an integrity information 200, or both validates the positioning information 11 and generates the integrity information 200, all of this being done based on both the positioning information 1 1 and the further positioning information 12.
[0044] This means that the positioning data (or positioning information) obtained by the GNSS receiver 21 on the side of the user equipment 20 is able to be validated by information or data obtained on the side of the mobile communication network 100. Depending on where the integrity processing unit 150 is located, two basically different implementations or alternative solutions of the present invention are conceivable.
[0045] In Figure 1 , a system realizing a first implementation according to the present invention is schematically shown. According to the first implementation of the present invention, especially the inventive method, the integrity processing unit 150 is located at or as part of the user equipment 20, and both the positioning information 1 1 and the further positioning information 12 are fed to (or provided to) the integrity processing unit 150, hence the further positioning information 12 needs to be transmitted or transported to the integrity processing unit 150, i.e. from the mobile communication network 100 towards the user equipment 20.
[0046] According to the first implementation (or first alternative) according to the present invention, especially a client-side validation and/or a client-side integrity determination is involved, and the first step comprises transmitting the further positioning information 12 from the mobile communication network 100 to the user equipment 20. The further positioning information 12 especially comprises one or a plurality of the following data or pieces of information:
-- an indication regarding the position of the user equipment 20,
-- an accuracy information related to the further positioning information 12,
-- an integrity information related to the further positioning information 12,
-- an information supporting the integrity validation of the positioning information 1 1 , especially the integrity validation of GNSS signals used by the user equipment 20.
[0047] In Figure 2, a system realizing a second implementation according to the present invention is schematically shown. According to the second implementation of the present invention, especially the inventive method, the integrity processing unit 150 is part of or related to the mobile communication network 100, and both the positioning information 11 and the further positioning information 12 are fed to (or provided to) the integrity processing unit 150, hence the positioning information 1 1 needs to be transmitted or transported to the integrity processing unit 150, i.e. from the user equipment 20 towards the mobile
communication network 100.
[0048] According to the second implementation (or second alternative) according to the present invention, especially a network-side validation and/or a network-side integrity determination is involved, and the first step comprises transmitting the positioning information 1 1 from the user equipment 20 to the mobile communication network 100. The positioning information 1 1 especially comprises one or a plurality of the following data or pieces of information:
-- an indication regarding the position of the user equipment 20 especially the GNSS position, and especially after processing satellite signals obtained from the GNSS receiver entity 21 , especially by a positioning engine,
-- a GNSS measurement list obtained from the GNSS receiver entity 21.
[0049] According to the present invention, the further positioning information 12 provided by the mobile network may contain various information elements, such as:
-- absolute position of the user equipment 20,
-- accuracy information related to the mobile network positioning information (or further positioning information 12),
-- integrity information related to the mobile network positioning information (or further positioning information 12),
-- information supporting the integrity validation of GNSS signals used by the GNSS receiver 21 of the user equipment 20,
-- other information supporting position integrity validation in the integrity processing unit 150 and/or in the GNSS receiver 21 and/or in the mobile network modem 22.
[0050] The mobile network positioning information (or further positioning information 12) is either provided to the user equipment 20 in case that the integrity processing unit 150 resides in the user equipment 20 (first implementation of the present invention), or transferred within the mobile communication network 100 in case that the integrity processing unit 150 is located in the mobile communication network 100. In case the validation and integrity check is carried out by the mobile communication network 100, the positioning information 11 from the user equipment 20 is transferred to the mobile communication network 100, this positioning information 11 especially comprising:
-- a GNSS position, typically obtained after processing the satellite signals obtained by the GNSS receiver 21 by a positioning engine, with or without information on uncertainties, and/or
-- a GNSS measurement list obtained from the GNSS receiver 21.
[0051] Upon the further positioning information 12 from the mobile communication network 100 and the position information 1 1 from the GNSS receiver 21 , the integrity processing unit 150 is able to validate the position accuracy obtained by the GNSS receiver 21 in the user equipment 20. Figure 3 shows the integrity processing unit 150 used according to the present invention: The integrity processing unit 150 is configured to either validate the positioning information 11 (by means of using the further positioning information 12), or to generate the integrity information 200 (based on both the positioning information 1 1 and the further positioning information 12), or to both validate the positioning information 11 and to generate the integrity information 200.
[0052] In case that the mobile communication network 100 acts as home mobile communication network or home public land mobile network to the user equipment 20, the integrity processing unit 150 could be part of that home mobile communication network 100 (and be used as integrity processing unit 150) according to the second implementation of the present invention, and the mobile communication network 100 provides the further positioning information 12 according to the first implementation of the present invention. In case that the mobile communication network 100 acts as visited mobile communication network or visited public land mobile network to the user equipment 20, the integrity processing unit 150 could - according to the second implementation of the present invention - either be part of that (visited) mobile communication network 100, or be part of the home mobile communication network (being connected to the mobile communication network 100 serving as visited mobile communication network). Likewise according to the first implementation of the present invention, the further positioning information 12 can either be provided by the mobile communication network 100 (serving as visited mobile
communication network), or by the home mobile communication network.
[0053] Various approaches may apply according to the present invention, such as:
-- processing the individual positioning data elements obtained from the GNSS receiver 21 and mobile communication network 100,
-- considering the trajectory of the user equipment 20 and related positioning information, i.e. previous positioning data of the user equipment 20,
-- considering use case specific movement patterns,
-- combing positioning data from the GNSS receiver 21 and the mobile communication network 100 with data from other functions (especially of the user equipment 20), such as an IMU (Inertial Measurement Unit), a barometer, etc.
[0054] According to the present invention, it is especially advantageous that the integrity processing unit 150 evaluation results in an alert alarm. When a defined alert limit is surpassed, an indication (such as, e.g., a message„system unavailable" or the like) is notified by the integrity processing unit 150, having the meaning that the current positioning information 1 1 provided by the GNSS receiver 21 is not reliable. Otherwise (i.e. in case that such an alarm alert is not raised or an alarm limit is not surpassed or exceeded), the information provided by the GNSS receiver 21 is considered to be reliable and notified as such.
[0055] For this purpose, the respective parameters such as a value or a threshold of the alert limit needs to be available at the integrity processing unit 150 residing on either user side or network side. Such a value or a threshold of the alert limit may be either stored on either side or communicated during user equipment-to-network information exchange, or vice versa.
[0056] The mobile communication network 100 can derive the position of the user equipment 20 from performing radio frequency or other measurements on the mobile network modem 22 of the user equipment 20 or carried out on network side. Thereby the antennas of the GNSS receiver 21 and the antennas of the mobile network modem 21 have to be located at the same or roughly the same location, when not using the same antenna. When there is a position offset between the GNSS and mobile network modem antenna locations, this offset might be needed to be known by the integrity processing unit 150, to eliminate calculation errors.
[0057] The further positioning information 12 according to the present invention may be fed from another source and stored in a data base at network side or in the cloud. This data may be static or changed by user intervention or changed by an automated process.
[0058] In another example, the positioning information regarding the user equipment 20 (i.e. the further positioning information 12) might be available from an object-recognition-and- localization system accessible from a cloud or network server and/or by a mobile network service. This information may be as well provided by the proposed solution to the integrity processing unit 150 to support GNSS position integrity validation.

Claims

PATENT CLAIMS
1. Method for using a positioning information (1 1 ) of a user equipment (20) in a mobile communication network (100), wherein in addition to using the positioning information
(1 1 ), a further positioning information (12) - determined or provided by a positioning information entity (130) of or related with the mobile communication network (100) - is used, the further positioning information (12) being used to either validate the positioning information (11 ) and/or to generate an integrity information (200) based on both the positioning information (1 1 ) and the further positioning information (12), wherein the user equipment (20) comprises a GNSS receiver entity (21 ) used to generate the positioning information (1 1 ),
wherein an integrity processing unit (150) -
— being located at or as part of the user equipment (20) and/or
— as part of or related to the mobile communication network (100) - is configured to validate the positioning information (11 ) and/or to generate the integrity information (200),
wherein the further positioning information (12) comprises an indication regarding the position of the user equipment (20),
wherein the method comprises the following steps:
— in a first step, the integrity processing unit (150) is provided with both the positioning information (11 ) and the further positioning information (12),
— in a second step, subsequent to the first step, the integrity processing unit (150) either validates the positioning information (1 1 ) and/or generates an integrity information (200) based on both the positioning information (11 ) and the further positioning information (12).
2. Method according to claim 1 , wherein the integrity processing unit (150) is located at or as part of the user equipment (20), especially involving a client-side validation and/or a client-side integrity determination, wherein the first step comprises transmitting the further positioning information (12) from the mobile communication network (100) to the user equipment (20), wherein the further positioning information
(12) especially comprises one or a plurality of the following:
— an indication regarding the position of the user equipment (20),
— an accuracy information related to the further positioning information (12),
— an integrity information related to the further positioning information (12),
— an information supporting the integrity validation of the positioning information (1 1 ), especially the integrity validation of GNSS signals used by the user equipment
(20).
3. Method according to claim 1 , wherein the integrity processing unit (150) is part of or related to the mobile communication network (100), especially involving a
network-side validation and/or a network-side integrity determination, wherein the first step comprises transmitting the positioning information (1 1 ) from the user equipment (20) to the mobile communication network (100), wherein the positioning information (1 1 ) especially comprises one or a plurality of the following:
-- an indication regarding the position of the user equipment (20) especially the GNSS position, and especially after processing satellite signals obtained from the GNSS receiver entity (21 ), especially by a positioning engine,
-- a GNSS measurement list obtained from the GNSS receiver entity (21 ).
4. Method according to any of the preceding claims, wherein, as part of the second step, the integrity processing unit (150) validates the position accuracy of the positioning information (11 ), wherein at least one or a plurality of the following is applied as part of the second step:
-- one or a plurality of individual positioning data elements, obtained as part of the positioning information (11 ) and/or as part of the further positioning information (12), are processed,
-- the trajectory of the user equipment (20) and/or related positioning information, especially previous positioning data, is considered,
-- the positioning information (11 ) and/or the further positioning information (12) are combined with positioning information obtained from other functions, especially from an inertial measurement unit as part of the user equipment (20) and/or from a barometer unit as part of the user equipment (20).
5. Method according to any of the preceding claims, wherein in a third step, subsequent to the second step, and based on the result of the validation of the positioning information (11 ) and/or based on the integrity information (200), an alert alarm is raised in case that a difference between the positioning information (11 ) and the further positioning information (12) is calculated or determined to exceed a predefined threshold value and/or in case that an integrity value and/or a reliability value associated to the positioning information (1 1 ) is calculated or determined to be insufficient.
6. Mobile communication network for using a positioning information (11 ) of a user equipment (20) in a mobile communication network (100), wherein in addition to using the positioning information (1 1 ), a further positioning information (12) - determined or provided by a positioning information entity (130) of or related with the mobile communication network (100) - is used, the further positioning information (12) being used to either validate the positioning information (11 ) and/or to generate an integrity information (200) based on both the positioning information (11 ) and the further positioning information (12), wherein user equipment (20) comprises a GNSS receiver entity (21 ) used to generate the positioning information (1 1 ),
wherein an integrity processing unit (150) - -- being located at or as part of the user equipment (20) and/or
-- as part of or related to the mobile communication network (100) - is configured to validate the positioning information (11 ) and/or to generate the integrity information (200),
wherein the further positioning information (12) comprises an indication regarding the position of the user equipment (20),
wherein the mobile communication network (100) is configured such that:
-- the integrity processing unit (150) is provided with both the positioning information (1 1 ) and the further positioning information (12),
-- the integrity processing unit (150) either validates the positioning information (1 1 ) and/or generates an integrity information (200) based on both the positioning information (11 ) and the further positioning information (12).
7. System for using a positioning information (11 ) of a user equipment (20) in a mobile communication network (100) , wherein in addition to using the positioning
information (11 ), a further positioning information (12) - determined or provided by a positioning information entity (130) of or related with the mobile communication network (100) - is used, the further positioning information (12) being used to either validate the positioning information (11 ) and/or to generate an integrity information (200) based on both the positioning information (11 ) and the further positioning information (12), wherein the system comprises the mobile communication network (100) and the user equipment (20), wherein user equipment (20) comprises a GNSS receiver entity (21 ) used to generate the positioning information (1 1 ),
wherein an integrity processing unit (150) - -- being located at or as part of the user equipment (20) and/or
-- as part of or related to the mobile communication network (100) - is configured to validate the positioning information (11 ) and/or to generate the integrity information (200),
wherein the further positioning information (12) comprises an indication regarding the position of the user equipment (20),
wherein the mobile communication network (100) is configured such that:
-- the integrity processing unit (150) is provided with both the positioning information (1 1 ) and the further positioning information (12),
-- the integrity processing unit (150) either validates the positioning information (1 1 ) and/or generates an integrity information (200) based on both the positioning information (11 ) and the further positioning information (12).
8. Computer program comprising a computer readable program code which, when
executed on a computer or on a server or a network node of a mobile communication network (100) or on a user equipment (20) or in part on a server or a network node of the mobile communication network (100) and in part on a user equipment (20), causes the server or the network node of the mobile communication network (100) and/or the user equipment (20) to perform a method according one of claims 1 to 5.
9. Computer-readable medium comprising instructions which when executed on a
computer or on a server or a network node of a mobile communication network (100) or on a user equipment (20) or in part on a server or a network node of the mobile communication network (100) and in part on a user equipment (20), causes the server or the network node of the mobile communication network (100) and/or the user equipment (20) to perform a method according to one of claims 1 to 5.
PCT/EP2019/062151 2018-05-15 2019-05-13 Method for using a positioning information of a user equipment in a mobile communication network, wherein a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, mobile communication network, system, computer program and computer-readable medium WO2019219572A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19722906.5A EP3794849A1 (en) 2018-05-15 2019-05-13 Method for using a positioning information of a user equipment in a mobile communication network, wherein a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, mobile communication network, system, computer program and computer-readable medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18172252.1 2018-05-15
EP18172252 2018-05-15

Publications (1)

Publication Number Publication Date
WO2019219572A1 true WO2019219572A1 (en) 2019-11-21

Family

ID=62492385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/062151 WO2019219572A1 (en) 2018-05-15 2019-05-13 Method for using a positioning information of a user equipment in a mobile communication network, wherein a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, mobile communication network, system, computer program and computer-readable medium

Country Status (2)

Country Link
EP (1) EP3794849A1 (en)
WO (1) WO2019219572A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112769875A (en) * 2021-04-08 2021-05-07 中国测绘科学研究院 GNSS reference station data transmission and deformation monitoring and early warning method and system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6313787B1 (en) * 1999-11-12 2001-11-06 Motorola, Inc. Method and apparatus for assisted GPS protocol
US6429808B1 (en) * 1999-11-12 2002-08-06 Motorola, Inc. Method and apparatus for assisted GPS integrity maintenance
EP2374017A1 (en) * 2008-12-23 2011-10-12 Telespazio S.p.A. High-reliability product/activity tracking system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6313787B1 (en) * 1999-11-12 2001-11-06 Motorola, Inc. Method and apparatus for assisted GPS protocol
US6429808B1 (en) * 1999-11-12 2002-08-06 Motorola, Inc. Method and apparatus for assisted GPS integrity maintenance
EP2374017A1 (en) * 2008-12-23 2011-10-12 Telespazio S.p.A. High-reliability product/activity tracking system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112769875A (en) * 2021-04-08 2021-05-07 中国测绘科学研究院 GNSS reference station data transmission and deformation monitoring and early warning method and system
CN112769875B (en) * 2021-04-08 2022-08-12 中国测绘科学研究院 GNSS reference station data transmission and deformation monitoring and early warning method and system

Also Published As

Publication number Publication date
EP3794849A1 (en) 2021-03-24

Similar Documents

Publication Publication Date Title
US9363642B2 (en) Radio frequency interference awareness assistance data
US11802978B2 (en) SDR for navigation with LTE signals
US10281583B2 (en) Detection of satellite system anomalies
EP2746813B1 (en) Detection of spoofing of GNSS navigation signals
US8437775B2 (en) Methods and arrangements for enabling estimation of a position of a mobile terminal
US20180049154A1 (en) Scanning method using position information of terminal in wireless access system supporting millimeter waves and devices for same
US11442172B2 (en) Satellite integrity monitoring with crowdsourced mobile device data
CN112083447B (en) Method and device for positioning navigation spoofing source
US20230258815A1 (en) Positioning integrity in wireless networks
CN110603768A (en) Method and apparatus for signal processing
US11019457B2 (en) Method for reducing wireless positioning error in multi-node system and terminal therefor
EP3794849A1 (en) Method for using a positioning information of a user equipment in a mobile communication network, wherein a further positioning information is used to either validate the positioning information and/or to generate an integrity information based on both the positioning information and the further positioning information, mobile communication network, system, computer program and computer-readable medium
US20220357459A1 (en) A device, a system, a method and computer program product for identifying interfering devices in position measurements
US10274604B1 (en) System, device, and method of prioritizing generation of predicted ephemeris data
US11385317B2 (en) Method for providing position information in a secure manner, and a terminal device and a computer program product thereto
US20140128087A1 (en) Method and apparatus for selecting a positioning solution
US8929925B2 (en) Method and system to reduce harmonic interference of broadband wireless devices to GPS receiver
WO2023216109A1 (en) Methods and apparatuses for rat-dependent positioning integrity
RU2809721C2 (en) Method for identifying and localizing devices that have negative impact on user devices of lte communication system, nr
RU2756916C2 (en) Method, device and computer software product for determining geographical location of radio transmitter
WO2024028342A1 (en) Methods and apparatus for positioning of a mobile terminal
CN117836670A (en) A-GNSS data access for out-of-coverage positioning
CN116782231A (en) Pseudo base station positioning method and related device
CN111190195A (en) Method, device and system for detecting pseudo GNSS interference
US20180035412A1 (en) Method for transmitting and receiving downlink messages with implicit identification of recipients

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19722906

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2019722906

Country of ref document: EP

Effective date: 20201215