Methods for autonomous timing adjustment under high speed scenario

Patent metadata

Field	Value
Publication number	US-11997632-B2
Application number	US-202017600681-A
Country	US
Kind code	B2
Filing date	Mar 30, 2020
Priority date	Apr 1, 2019
Publication date	May 28, 2024
Grant date	May 28, 2024

Abstract

According to one aspect of the disclosure, a wireless device is configured to communicate with a network node is provided. The wireless device includes processing circuitry configured to: receive an indication, adjust a transmit timing based at least on the indication, and optionally transmit signals based at least on the adjusted transmit timing.

First claim

What is claimed is:

1. A wireless device, WD, configured to communicate with a network node, the WD comprising:
processing circuitry configured to:
obtain speed information about a speed of the WD, and bandwidth information about a bandwidth associated with a cell serving the WD, the speed information indicating that the WD is associated with one of a plurality of speed ranges, each of the plurality of speed ranges having an upper bound and corresponding to at least one transmit timing parameter;
adjust a transmit timing parameter of the WD based at least on the obtained information; and
transmit signals based at least on the adjusted transmit timing.

2. The WD of claim 1 , wherein the adjusting of the transmit timing includes switching from a first operational scheme to a second operational scheme, each operational scheme defining at least one respective value at least one transmit timing parameter.

3. The WD of claim 2 , wherein the first operational scheme is configured to be used by the WD in the absence of reception of the indication that the WD is associated with the one of the plurality of speed ranges.

4. The WD of claim 1 , wherein at least one of:
the bandwidth is one of a bandwidth of the cell, a bandwidth part associated with the WD and a bandwidth of a reference signal; and
the bandwidth information is determined, explicitly or implicitly, by one or more parameters, the one or more parameters comprising a numerology associated with a cell serving the WD.

5. A method implemented by a wireless device, WD, that is configured to communicate with a network node, the method comprising:
obtaining speed information about a speed of the WD and bandwidth information about a bandwidth associated with a cell serving the WD, the speed information indicating that the WD is associated with one of a plurality of speed ranges, each of the plurality of speed ranges having an upper bound and corresponding to at least one transmit timing parameter;
adjusting a transmit timing parameter of the WD based at least on the obtained speed information; and
transmitting signals based at least on the adjusted transmit timing parameter.

6. The method of claim 5 , wherein the adjusting of the transmit timing parameter includes switching from a first operational scheme to a second operational scheme, each operational scheme defining at least one respective value for the transmit timing parameter.

7. The method of claim 6 , wherein the first operational scheme is used by the WD in the absence of reception of an indication that the WD is associated with the one of the plurality of speed ranges.

8. The method of claim 5 , wherein at least one of:
the bandwidth is one of a bandwidth of the cell, a bandwidth part associated with the WD and a bandwidth of a reference signal; and
the bandwidth information is determined, explicitly or implicitly, by one or more parameters, the one or more parameters comprising a numerology associated with a cell serving the WD.

9. A network node configured to communicate with a wireless device, WD, the network node comprising:
processing circuitry configured to:
signal an indication to the WD, the indication being associated at least with a speed of the WD and configured to cause the WD to adjust a transmit timing parameter of the WD, the speed with which the indication is associated being one of a plurality of speed ranges, each of the plurality of speed ranges having an upper bound and corresponding to at least one transmit timing parameter; and
receive signals based at least on the adjusted transmit timing parameter.

10. The network node of claim 9 , wherein the processing circuitry is configured to provide the indication by an indicator that includes at least one indicator parameter, the at least one indicator parameter indicating one of a plurality of operational schemes for the WD to implement.

11. A method implemented by a network node that is configured to communicate with a wireless device, WD, the method comprising:
signaling an indication to the WD, the indication being associated at least with a speed of the WD and configured to cause the WD to adjust a transmit timing parameter of the WD, the speed with which the indication is associated being one of a plurality of speed ranges, each of the plurality of speed ranges having an upper bound and corresponding to at least one transmit timing parameter; and
receiving signals based at least on the adjusted transmit timing parameter.

12. The method of claim 11 , wherein the indication is provided by an indicator that includes at least one indicator parameter, the at least one indicator parameter indicating one of a plurality of operational schemes for the WD to implement.

13. The WD of claim 1 , wherein the processing circuitry is configured to obtain at least one of the speed and bandwidth information through reception of an indication from the network node.

14. The WD of claim 1 , wherein the speed information at least one of:
comprises a high speed indicator indicating that the WD speed is equal to or above a certain threshold; and
is based at least on an estimated speed of the WD, the estimated speed of the WD being based on at least one of:
a geographical area where the WD is located; and
historical speed data of the WD.

15. The method of claim 5 , wherein at least one of the speed and bandwidth information is obtained through reception of an indication from the network node.

16. The method of claim 5 , wherein the speed information at least one of:
comprises a high speed indicator indicating that the WD speed is equal to or above a certain threshold; and
is based at least on an estimated speed of the WD, the estimated speed of the WD being based on at least one of:
a geographical area where the WD is located; and
historical speed data of the WD.

17. The network node of claim 9 , wherein at least one of:
the indication is provided by a high speed indicator indicating that the WD speed is equal to or above a certain threshold; and
the speed with which the indication is associated is an estimated speed of the WD, the estimated speed of the WD being based at least on one of:
a geographical area where the WD is located; and
historical speed data of the WD.

18. The network node of claim 9 , the indication being further associated with a bandwidth associated with a cell serving the WD, wherein at least one of:
the bandwidth is one of a bandwidth of the cell, a bandwidth part associated with the WD and a bandwidth of a reference signal; and
the bandwidth is determined, explicitly or implicitly, by one or more parameters, the one or more parameters comprising a numerology associated with a cell serving the WD.

19. The method of claim 11 , wherein at least one of:
the indication is provided by a high speed indicator indicating that the WD speed is equal to or above a certain threshold; and
the speed with which the indication is associated with is an estimated speed of the WD, the estimated speed of the WD being based at least one one of:
a geographical area where the WD is located; and
historical speed data of the WD.

20. The method of claim 11 , the indication being associated with a bandwidth associated with a cell serving the WD, wherein at least one of:
the bandwidth is one of a bandwidth of the cell, a bandwidth part associated with the WD and a bandwidth of a reference signal; and
the bandwidth is determined, explicitly or implicitly, by one or more parameters, the one or more parameters comprisin

Assignees

• Ericsson Telefon Ab L M

Inventors

• Kazmi Muhammad Ali
• Callender Christopher
• Sandgren Magnus

Classifications

• H04W56/0045 Primary

  compensating for timing error by altering transmission time · CPC title