Non-stationary time-domain positioning with frequency hopping

1 . An apparatus comprising:

at least one processor; and

at least one non-transitory memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to:

determine Doppler shift information per transmission reception point per frequency hopping block;

combine the frequency hopping blocks associated with positioning reference signals received from a transmission reception point per transmission reception point;

determine a time of arrival of the received positioning reference signals per transmission reception point, based on the combined frequency hopping blocks;

transmit, to a location management function, at least one of: an average speed of the apparatus from the respective transmission reception point over the frequency hopping blocks, or an adjusted positioning measurement based on at least one of the determined time of arrival, a Doppler frequency, and a speed of the apparatus; and

transmit, to the location management function, the time of arrival per transmission reception point.

2 . The apparatus of claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:

receive, from the location management function, an indication of the number of frequency hopping blocks.

3 . The apparatus of claim 2 , wherein the number of frequency hopping blocks for which the Doppler shift information is determined is less than a number of frequency hopping blocks for which the positioning reference signals are received from the transmission reception points.

4 . The apparatus of claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:

determine at least one of a compensated time difference measurement or a compensated Rx-Tx time difference measurement per transmission reception point, based on the speed or the average speed of the apparatus from the point of view of the respective transmission reception point over the frequency hopping blocks per transmission reception point; and

transmit, to the location management function, at least one of the compensated time difference measurement or the compensated Rx-Tx time difference measurement per transmission reception point.

5 . The apparatus of claim 4 , wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:

receive, from the location management function, a request to determine at least one of the compensated time difference measurement or the Rx-Tx time difference measurement based on the average speed of the apparatus from the point of view of the respective transmission reception point over the frequency hopping blocks per transmission reception point.

6 . The apparatus of claim 5 , wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:

transmit, to the location management function, an indication of a capability of the apparatus to determine the compensated time difference measurement or the compensated Rx-Tx time difference measurement per transmission reception point, based on the average speed of the apparatus from the point of view of the respective transmission reception point over the frequency hopping blocks per transmission reception point.

7 . The apparatus of claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:

determine a full bandwidth aggregation per transmission reception point, based on the combining of the frequency hopping blocks associated with positioning reference signals received from a transmission reception point per transmission reception point;

wherein the time of arrival of the received positioning reference signals per transmission reception point is determined based on the full bandwidth aggregation.

8 . The apparatus of claim 1 , wherein a positioning measurement includes a time of arrival and the time of arrival is used with the location management function to determine a positioning reference signal traveling time per transmission reception point as the time of arrival of the positioning reference signals with the user equipment for a respective transmission reception point minus a time of departure of the positioning reference signals from the respective transmission reception point, and to determine a correction for a transmission reception point to be the positioning reference signal traveling time of a respective transmission reception point multiplied by the average speed of the user equipment from the point of view of the respective transmission reception point over the frequency hopping blocks for the respective transmission reception point, wherein a distance of the user equipment to the respective transmission reception point is adjusted based on the correction for the respective transmission reception point.

9 . The apparatus of claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:

determine the speed of the apparatus per transmission reception point per frequency hopping block, based on the Doppler shift information; and

determine the average speed of the apparatus from a point of view of a respective transmission reception point over the frequency hopping blocks per transmission reception point, based on the determined speeds.

10 . A method comprising:

determining Doppler shift information per transmission reception point per frequency hopping block;

combining the frequency hopping blocks associated with positioning reference signals received from a transmission reception point per transmission reception point;

determining a time of arrival of the received positioning reference signals per transmission reception point, based on the combined frequency hopping blocks;

transmitting, to a location management function, at least one of: an average speed of an apparatus from the respective transmission reception point over the frequency hopping blocks, or an adjusted positioning measurement based on at least one of the determined time of arrival, a Doppler frequency, and a speed of the apparatus; and

transmitting, to the location management function, the time of arrival per transmission reception point.

11 . The method of claim 10 , further comprising:

receiving, from the location management function, an indication of the number of frequency hopping blocks.

12 . The method of claim 11 , wherein the number of frequency hopping blocks for which the Doppler shift information is determined is less than a number of frequency hopping blocks for which the positioning reference signals are received from the transmission reception points.

13 . The method of claim 10 , further comprising:

determining at least one of a compensated time difference measurement or a compensated Rx-Tx time difference measurement per transmission reception point, based on the speed or the average speed of an apparatus from the point of view of the respective transmission reception point over the frequency hopping blocks per transmission reception point; and

transmitting, to the location management function, at least one of the compensated time difference measurement or the compensated Rx-Tx time difference measurement per transmission reception point.

14 . The method of claim 13 , further comprising:

receiving, from the location management function, a request to determine at least one of the compensated time difference measurement or the Rx-Tx time difference measurement based on the average speed of the apparatus from the point of view of the respective transmission reception point over the frequency hopping blocks per transmission reception point.

15 . The method of claim 14 , further comprising:

transmitting, to the location management function, an indication of a capability of the apparatus to determine the compensated time difference measurement or the compensated Rx-Tx time difference measurement per transmission reception point, based on the average speed of the apparatus from the point of view of the respective transmission reception point over the frequency hopping blocks per transmission reception point.

16 . The method of claim 10 , further comprising:

determining a full bandwidth aggregation per transmission reception point, based on the combining of the frequency hopping blocks associated with positioning reference signals received from a transmission reception point per transmission reception point;

wherein the time of arrival of the received positioning reference signals per transmission reception point is determined based on the full bandwidth aggregation.

17 . The method of claim 10 , wherein a positioning measurement includes a time of arrival and the time of arrival is used with the location management function to determine a positioning reference signal traveling time per transmission reception point as the time of arrival of the positioning reference signals with the user equipment for a respective transmission reception point minus a time of departure of the positioning reference signals from the respective transmission reception point, and to determine a correction for a transmission reception point to be the positioning reference signal traveling time of a respective transmission reception point multiplied by the average speed of the user equipment from the point of view of the respective transmission reception point over the frequency hopping blocks for the respective transmission reception point, wherein a distance of the user equipment to the respective transmission reception point is adjusted based on the correction for the respective transmission reception point.

18 . The method of claim 10 , further comprising:

determining the speed of an apparatus per transmission reception point per frequency hopping block, based on the Doppler shift information; and

determining the average speed of the apparatus from a point of view of a respective transmission reception point over the frequency hopping blocks per transmission reception point, based on the determined speeds.