Solutions to timing reference for detection and report of UL RSat asynch nodes or nodes without a time frame structure

Patent metadata

Field	Value
Publication number	US-11864146-B2
Application number	US-202117224680-A
Country	US
Kind code	B2
Filing date	Apr 7, 2021
Priority date	Mar 28, 2019
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A method determining a timing of an uplink signal includes receiving timing information associated with an uplink signal and a numerology of the uplink signal, wherein the timing information is used to determine a reference time of the uplink signal received from a user equipment (UE), receiving, from the UE, the uplink signal, wherein the receiving is in accordance with the timing information and the numerology of the uplink signal, and measuring an uplink relative time of arrival in accordance with the received uplink signal and the reference time of the uplink signal.

First claim

What is claimed is:

1. A method, comprising:
receiving, by a measuring device, timing information associated with an uplink signal and a numerology of the uplink signal, wherein the timing information is used to determine a reference time of the uplink signal received from a user equipment (UE);
receiving, by the measuring device from the UE, the uplink signal in accordance with the timing information and the numerology of the uplink signal; and
measuring, by the measuring device, an uplink relative time of arrival (UL RTOA) in accordance with the uplink signal and the reference time of the uplink signal, wherein the UL RTOA is a difference between the reference time of the uplink signal and a time of a start of a subframe containing the uplink signal.

2. The method of claim 1 , wherein the reference time of the uplink signal corresponds to the start of the subframe containing the uplink signal.

3. The method of claim 2 , wherein the reference time of the uplink signal is determined in accordance with at least one of the timing information, the numerology of the uplink signal, or an uplink signal configuration at the measuring device.

4. The method of claim 1 , wherein the timing information comprises a radio frame initialization time indicating a time of a start of a radio frame number zero.

5. The method of claim 4 , wherein the reference time of the uplink signal is determined in accordance with the radio frame initialization time.

6. The method of claim 5 , wherein the reference time of the uplink signal is determined further in accordance with a system frame number of a frame containing the uplink signal.

7. The method of claim 6 , wherein the reference time of the uplink signal is determined further in accordance with the subframe containing the uplink signal.

8. A method, comprising:
determining, by an apparatus, timing information associated with an uplink signal and a numerology of the uplink signal, wherein the timing information is used to determine a reference time of the uplink signal sent by the apparatus; and
transmitting, by the apparatus to a measuring device, the uplink signal in accordance with the timing information and the numerology of the uplink signal,
wherein the uplink signal and the reference time of the uplink signal are used to measure an uplink relative time of arrival (UL RTOA), and
wherein the UL RTOA is a difference between the reference time of the uplink signal and a time of a start of a subframe containing the uplink signal.

9. The method of claim 8 , wherein the reference time of the uplink signal corresponds to the start of the subframe containing the uplink signal.

10. The method of claim 9 , wherein the reference time of the uplink signal is determined in accordance with at least one of the timing information, the numerology of the uplink signal, or an uplink signal configuration at the measuring device.

11. The method of claim 8 , wherein the timing information comprises a radio frame initialization time indicating a time of a start of radio frame number zero.

12. The method of claim 11 , wherein the reference time of the uplink signal is determined in accordance with the radio frame initialization time.

13. The method of claim 12 , wherein the reference time of the uplink signal is determined further in accordance with a system frame number of a frame containing the uplink signal.

14. The method of claim 13 , wherein the reference time of the uplink signal is determined further in accordance with the subframe containing the uplink signal.

15. A measuring device, comprising:
at least one processor; and
a non-transitory computer readable storage medium storing programming for execution by the at least one processor, the programming including instructions to:
receive timing information associated with an uplink signal and a numerology of the uplink signal, wherein the timing information is used to determine a reference time of the uplink signal received from a user equipment (UE);
receive, from the UE, the uplink signal in accordance with the timing information and the numerology of the uplink signal; and
measure an uplink relative time of arrival (UL RTOA) in accordance with the uplink signal and the reference time of the uplink signal, wherein the UL RTOA is a difference between the reference time of the uplink signal and a time of a start of a subframe containing the uplink signal.

16. The measuring device of claim 15 , wherein the reference time of the uplink signal corresponds to the start of the subframe containing the uplink signal.

17. The measuring device of claim 16 , wherein the reference time of the uplink signal is determined in accordance with at least one of the timing information, the numerology of the uplink signal, or an uplink signal configuration at the measuring device.

18. The measuring device of claim 15 , wherein the timing information comprises a radio frame initialization time indicating a time of a start of a radio frame number zero.

19. The measuring device of claim 18 , wherein the reference time of the uplink signal is determined in accordance with the radio frame initialization time.

20. The measuring device of claim 19 , wherein the reference time of the uplink signal is determined further in accordance with a system frame number of a frame containing the uplink signal.

21. The measuring device of claim 20 , wherein the reference time of the uplink signal is determined further in accordance with the subframe containing the uplink signal.

22. An apparatus, comprising:
at least one processor; and
a non-transitory computer readable storage medium storing programming for execution by the at least one processor, the programming including instructions to:
determine timing information associated with an uplink signal and a numerology of the uplink signal, wherein the timing information is used to determine a reference time of the uplink signal sent by the apparatus; and
transmit, to a measuring device, the uplink signal in accordance with the timing information and the numerology of the uplink signal,
wherein the uplink signal and the reference time of the uplink signal are used to measure an uplink relative time of arrival (UL RTOA), and
wherein the UL RTOA is a difference between the reference time of the uplink signal and a time of a start of a subframe containing the uplink signal.

23. The apparatus of claim 22 , wherein the reference time of the uplink signal corresponds to the start of the subframe containing the uplink signal.

24. The apparatus of claim 23 , wherein the reference time of the uplink signal is determined in accordance with at least one of the timing information, the numerology of the uplink signal, or an uplink signal configuration at the measuring device.

25. The apparatus of claim 22 , wherein the timing information comprises a radio frame initialization time indicating a time of a start of radio frame number zero.

26. The apparatus of claim 25 , wherein the reference time of the uplink signal is determined in accordance with the radio frame initialization time.

27. The apparatus of claim 26 , wherein the reference time of the uplink signal is determined further in accordance with a system frame number of a frame containing the uplink signal.

28. The apparatus of claim 27 , wherein the reference time of the uplink signal is determined further in accordan

Assignees

• Huawei Tech Co Ltd

Inventors

• Zarifi Keyvan
• Huang Su

Classifications

• G01S1/022

  Means for monitoring or calibrating · CPC title

• G01S5/04 Primary

  Position of source determined by a plurality of spaced direction-finders · CPC title

• H04W56/008 Primary

  detecting arrival of signal based on received raw signal · CPC title

• H04W56/005

  compensating for timing error by adjustment in the receiver · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title