Positioning integrity in wireless networks

1 . First apparatus, comprising:

a GNSS receiver configured to receive GNSS signals,

a mobile communication transceiver configured to operate in a mobile communication network,

wherein the first apparatus is configured to determine at least one parameter based on the received GNSS signals or use at least one parameter determined by a second or third apparatus based on GNSS measurements,

wherein the first apparatus is configured to receive with the mobile communication transceiver a first information message from a second apparatus of the mobile communication network, the first information message comprising a first integrity information describing an integrity status of the GNSS signals,

wherein the first apparatus is configured to determine the at least one parameter in dependence on the first integrity information, and

report the at least one parameter taking into account the first integrity information,

wherein the report of the at least one parameter comprises a quality and uncertainty,

wherein the first integrity information received with the first information message is based on a second integrity information from a third apparatus, the second integrity information describing the integrity status of the GNSS signals in the geographical or logical area in which first apparatus is located.

2 . First apparatus according to claim 1 ,

wherein the at least one parameter is at least one out of

a position of the first apparatus,

a velocity of the first apparatus,

a system time,

GNSS measurements.

3 . First apparatus according to claim 1 ,

wherein the first apparatus is configured to determine the at least one parameter further based on measurements from at least one out of the following

radio signals,

IMU,

accelerometer,

gyroscope,

barometer,

pedometer,

tachometer,

odometer,

speedometer,

magnetometer,

camera,

lidar.

4 . First apparatus according to claim 1 ,

wherein the integrity information describes the integrity status of the GNSS signals in a geographical or logical area the apparatus is located.

5 . First apparatus according to claim 1 ,

wherein the integrity status is at least one out of

an integrity event,

an integrity alert.

6 . First apparatus according to claim 1 ,

wherein the first apparatus is configured to report measurements relevant for integrity to the second apparatus.

7 . First apparatus according to claim 1 ,

wherein the first apparatus is configured to receive the information message from the second apparatus via a downlink channel,

or wherein the first apparatus is configured to receive the information message from the third apparatus via a sidelink channel or a downlink channel.

8 . First apparatus according to claim 1 ,

wherein the information message is transmitted using a location positioning protocol, LPP, provide message.

9 . First apparatus according to claim 1 ,

wherein the first apparatus is a UE.

10 . Second apparatus, comprising:

a mobile communication transceiver configured to operate in a mobile communication network,

wherein the second apparatus is configured to transmit with the mobile communication transceiver an information message to a first apparatus or a group of first apparatuses of the mobile communication network, the information message comprising an integrity information describing an integrity status of the GNSS signals in a geographical or logical area in which the first apparatus or group of first apparatuses is located,

wherein the second apparatus is configured to receive a report of at least one parameter from the first apparatus, wherein the at least one parameter is determined by the first apparatus based on GNSS signals received by the first apparatus and in dependence on the integrity information, wherein the report of the at least one parameter comprises a quality and uncertainty,

wherein the information message is a first information message, wherein the integrity information is a first integrity information,

wherein the second apparatus is configured to receive from a third apparatus a second information message comprising a second integrity information describing the integrity status of the GNSS signals in the geographical or logical area in which first apparatus is located,

wherein the first integrity information transmitted with the first information message is based on the second integrity information.

11 . Second apparatus according to claim 10 ,

wherein the second apparatus comprises a GNSS receiver or another receiver capable of detecting an integrity status of GNSS signals,

wherein the second apparatus is configured to determine with the GNSS receiver or the other receiver an integrity status of the GNSS signals and to derive the integrity information from the determined status.

12 . Second apparatus according to claim 10 ,

wherein the second apparatus is configured to receive from a third apparatus a third information message, the third information message comprising a reported position and/or time of the third apparatus, and a portion of GNSS signals received by the third apparatus or measurements of the GNSS signals received by the third apparatus,

wherein the second apparatus is configured to determine the integrity status of the GNSS signals based on the reported position of the third apparatus, and the portion of GNSS signals received by the third apparatus or the measurements of the GNSS signals received by the third apparatus.

13 . Second apparatus according to claim 11 ,

wherein the integrity status is at least one out of

an integrity event,

an integrity alert.

14 . Second apparatus according to claim 10 ,

wherein the second apparatus is configured to transmit an integrity information request message to the third apparatus, the integrity information request message requesting the third apparatus to transmit the second information message comprising the second integrity information,

or wherein the second information message is transmitted using a location positioning protocol, LPP, provide message,

or wherein the second apparatus is configured to transmit the second integrity information as the first integrity information with the first information message,

or wherein the apparatus is configured to derive the first integrity information from the second integrity information,

or wherein the second apparatus is configured to receive from a group of third apparatuses a group of second information messages comprising second integrity information, each describing the integrity status of the GNSS signals, wherein the second apparatus is configured to derive the first integrity information from the group of second integrity information,

or wherein the second apparatus is configured to detect an integrity event or integrity alert based on the second information message or group of second information messages.

15 . Second apparatus according to claim 10 ,

wherein the second apparatus is one out of the following:

a base station,

an LMF,

an NG-RAN node,

a local LMF functionality in a NG-RAN node,

a TRP,

an AMF,

an NRF,

an external server accessing the mobile communication network via a NRF or a gateway,

an NG-RAN node based on transparent satellite,

an NG-RAN node based on regenerative satellite with or without inter-satellite link.

16 . Second apparatus according to claim 10 ,

wherein the second apparatus is configured to transmit the information message to the first apparatus via a different second apparatus.

17 . Second apparatus according to claim 10 ,

wherein the second apparatus is configured to transmit the integrity information to the first apparatus as one out of

dedicated control signaling,

user data,

control signaling as SIB sent to a group of UEs,

multicast to a group of UE,

broadcast,

unicast.

18 . Method for operating a first apparatus, the method comprising:

receiving GNSS signals,

operating in a mobile communication network,

determining at least one parameter based on the received GNSS signals,

receiving a first information message from a second apparatus of the mobile communication network, the first information message comprising a first integrity information describing an integrity status of the GNSS signals, and

determining the at least one parameter in dependence on the first integrity information and reporting the at least one parameter taking into account the first integrity information, wherein the report of the at least one parameter comprises a quality and uncertainty,

wherein the first integrity information received with the first information message is based on a second integrity information of a third apparatus, the second integrity information describing the integrity status of the GNSS signals in the geographical or logical area in which first apparatus is located.

19 . Method for operating a second apparatus, the method comprising:

operating in a mobile communication network, transmitting an information message to a first apparatus or a group of first apparatuses of the mobile communication network, the information message comprising an integrity information describing an integrity status of the GNSS signals in a geographical or logical area in which the first apparatus or group of first apparatuses is located,

wherein the information message is a first information message, wherein the integrity information is a first integrity information,

receiving from a third apparatus a second information message comprising a second integrity information describing the integrity status of the GNSS signals in the geographical or logical area in which first apparatus is located,

wherein the first integrity information transmitted with the first information message is based on the second integrity information.