Positioning reference signal repetition duration for non-terrestrial networks

An apparatus comprising at least one processor and memory coupled to the at least one processor, the at least one processor and memory being configured to:

• measure a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter;
• measure a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter;
• and
• determine an observed time difference of arrival (OTDOA) between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence,
• wherein the OTDOA is less than a maximum differential delay expected between reception at the receiver device of a pair of PRS transmissions transmitted by a pair of transmitter devices during the same radio frame, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.

An apparatus comprising:

• means for measuring a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter;
• means for measuring a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter;
• and
• means for determining an observed time difference of arrival (OTDOA) between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence,
• wherein the OTDOA is less than a maximum differential delay expected between reception at the receiver device of a pair of PRS transmissions transmitted by a pair of transmitter devices during the same radio frame, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.

A non-transitory computer-readable medium comprising instructions which when executed by a computer or processor of an apparatus, cause the apparatus to perform functions in accordance with the instructions, comprising:

• instructions to measure a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter;
• instructions to measure a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter;
• and
• instructions to determine an observed time difference of arrival (OTDOA) between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence,
• wherein the OTDOA is less than a maximum differential delay expected between reception at the receiver device of a pair of PRS transmissions transmitted by a pair of transmitter devices during the same radio frame, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.