UPLINK SCHEDULING COORDINATION FOR DUAL CONNECTIVITY NETWORKING

Abstract

A first network node in a first radio area network (RAN) is configured to communicate with at least a second node in a second RAN. The first node is configured to establish scheduling for a transmission from the first node to a wireless device (WD) based at least in part on scheduling of the second node for another transmission to the WD. The first node may be configured to change scheduling for the first node faster than scheduling for the second node. The first RAN may be based on 3rd Generation Partnership Project (3GPP), New Radio standards, and the second RAN based on 3GPP Long-Term-Evolution standards. The first node may set a timing parameter for a transmission such that a multi-slot time window exists to convey to the first node information about an uplink scheduling decision the second node has made for an uplink slot.

Description

Claims

1. A first network node in a first radio area network, RAN, configured to communicate with at least a second network node in a second RAN, the first network node comprising processing circuitry configured to: establish scheduling for a transmission from the first network node to a wireless device, WD, based at least in part on scheduling of the second network node for another transmission to the WD.

2. The first network node of claim 1, wherein the processing circuitry is further configured to change scheduling for the first network node so that a shorter time interval exists between when an activity is scheduled by the first network node and when a result is broadcast by the first network node than a time interval between when an activity is scheduled by the second node and when a result is broadcast by the second network node.

3. The first network node of claim 2, wherein the first network node receives from the second network node information indicating the second network node’s scheduling activities for the WD.

4. The first network node of claim 3, wherein the information indicating the second node’s scheduling activities for the WD includes at least one of information indicating scheduling of an activity on an uplink, UL, slot of interest and information indicating a forecast power to be used by WD to execute the activity.

5. The first network node of claim 1, wherein the first RAN is based on 3rd Generation Partnership Project, 3GPP, new radio, NR, standards and the second RAN is based on 3GPP Long-Term- Evolution, LTE, standards.

6. The first network node of claim 1, wherein the first RAN and the second RAN are based on 3rd Generation Partnership Project, 3GPP, new radio, NR, standards.

7. The first network node of claim 1, wherein the processing circuitry is further configured to stop basing scheduling for a transmission to the WD on the second network node’s scheduling for a transmission to the WD when a communication link between the first network node and WD is removed.

8. The first network node of claim 1, wherein the processing circuitry is further configured to receive an uplink, UL, reference pattern between at least two schedulers.

9. The first network node of claim 1, wherein the processing circuitry is further configured to receive an uplink, UL, reference pattern for multiple WDs on an individual WD by WD basis.

10. The first network node of claim 1, wherein the processing circuitry is further configured to change an uplink, UL, reference pattern.

11. The first network node of claim 1, wherein the processing circuitry is further configured to assess loading of transmissions between the WD and the first network node and the WD and the second network node.

12. The first network node of claim 1, wherein the processing circuitry is further configured to alter New Radio, NR, parameter k2.

13. The first network node of claim 1, wherein the processing circuitry is further configured to schedule a downlink, DL, hybrid automatic repeat request, HARQ, response to avoid uplink, UL, slots that have been committed to the second RAN.

14. The first network node of claim 1, wherein the processing circuitry is further configured to determine scheduling based on at least one of a time domain duplex, TDD, pattern, a frequency domain duplex, FDD, pattern and a numerology difference between the first and second RAN.

15. The first network node of claim 1, wherein the processing circuitry is further configured to set a timing parameter for a transmission such that a multi-slot time window exists to convey to information to the first network node about an UL scheduling decision the second network node has made for at least one UL slot.

16. A method performed by a first network node in a first radio area network, RAN, configured to communicate with at least a second network node in a second RAN, the method comprising: establishing scheduling for a transmission from the first network node to a wireless device, WD, based at least in part on scheduling of the second network node for another transmission to the WD.

17. The method of claim 16, further comprising changing scheduling for the first network node so that a shorter time interval exist between when an activity is scheduled by the first network node and when a result is broadcast by the first network node than a time interval between when an activity is scheduled by the second node and when a result is broadcast by the second network node.

18. The method of claim 17, further comprising the first network node receiving from the second network node information indicating the second network node’s scheduling activities for the WD.

19. The method of claim 18, wherein the information indicating the second node’s scheduling activities for the WD includes at least one of information indicating scheduling of an activity on an uplink, UL, slot of interest and information indicating a forecast power to be used by WD to execute the activity.

20. The method of claim 16, wherein the first RAN is based on 3rd Generation Partnership Project, 3GPP, new radio, NR, standards and the second RAN is based on 3GPP Long-Term- Evolution, LTE, standards.

21. The method of claim 16, wherein the first RAN and second RAN are based on 3rd Generation Partnership Project, 3GPP, new radio, NR, standards.

22. The method of claim 16, further comprising stopping the basing of the scheduling for a transmission to the WD on the second network node’s scheduling for a transmission to the WD when a communication link between the first network node and WD is removed.

23. The method of claim 16, further comprising receiving an uplink, UL, reference pattern between at least two schedulers.

24. The method of claim 16, further comprising receiving an uplink, UL, reference pattern for multiple WDs on an individual WD by WD basis.

25. The method of claim 16, further comprising changing an uplink, UL, reference pattern.

26. The method of claim 16, further comprising assessing loading of transmissions between the WD and the first network node and the WD and the second network node.

27. The method of claim 16, further comprising altering New Radio, NR, parameter k2.

28. The method of claim 16, further comprising scheduling a downlink, DL, hybrid automatic repeat request, HARQ, response to avoid uplink, UL, slots that have been committed to the second RAN.

29. The method of claim 16, further comprising determining scheduling based on at least one of a time domain duplex, TDD, pattern, a frequency domain duplex, FDD, pattern and a numerology difference between the first and second RAN.

30. The method of claim 16, further comprising set a timing parameter for a transmission such that a multi-slot time window exists to convey to information to the first network node (16) about an UL scheduling decision the second network node has made for at least one UL slot.