Abstract
The present invention relates to a network node such as a base station for a wireless communications system and to a method for supporting a change of a buffer estimation state of a user equipment from a passive to a proactive state. The method comprises receiving (410) information describing a buffer status of the user equipment and determining (420) whether to change the buffer estimation state of the user equipment to the proactive state based on the received information. The purpose is to achieve a more correct UE buffer estimation state and thus better accuracy for the buffer estimation.
The present invention relates to a network node such as a base station for a wireless communications system and to a method for supporting a change of a buffer estimation state of a user equipment from a passive to a proactive state. The method comprises receiving (410) information describing a buffer status of the user equipment and determining (420) whether to change the buffer estimation state of the user equipment to the proactive state based on the received information. The purpose is to achieve a more correct UE buffer estimation state and thus better accuracy for the buffer estimation.
Technologies
Resource configuration Scheduling
Product
Base Station (eNB/gNB)
Use Cases
Wireless communication
Services
Communication Performance Optimization
Claim
1. A method in a network node of a wireless communications system for supporting a change of a buffer estimation state of a user equipment from a passive to a proactive state, the method comprising:', '- receiving (410) information describing a buffer status of the user equipment, and', '- determining (420) whether to change the buffer estimation state of the user equipment to the proactive state based on the received information.
2. The method according to claim 1 , wherein the received information comprises a segment of a data unit and a buffer status report comprising a buffer content size for the user equipment, wherein determining (420) whether to change the buffer estimation state comprises:', '- determining (422) a sum of a size of the segment of the data unit and a size of previously received segments of the data unit, and', '- changing (423) to the proactive state if the determined sum added to the buffer content size exceeds a first threshold.
3. The method according to claim 2, wherein determining (420) whether to change the buffer estimation state comprises the initial step of determining whether the segment of the data unit is a Packet Data Control Protocol, PDCP, control protocol data unit, and performing the consecutive steps of determining (422) the sum and changing (423) to the proactive state only if the segment of the data unit is determined not to be a PDCP control protocol data unit.
4. The method according to any of claims 2-3, wherein a counter indicates the size of the previously received segments of the data unit, and wherein determining (422) the sum comprises:', 'if the segment is the last segment of the data unit,', '- setting the counter to zero,', 'and otherwise,', '- incrementing the counter with the size of the segment of the data unit.
5. The method according to any of claims 2-4, wherein a value of the first threshold is pre-determined.
5 determining a sum of a size of the segment of the data unit and a size of previously received segments of the data unit, and changing to the proactive state if the determined sum added to the buffer content size exceeds a first threshold
6. The method according to any of claims 2-4, wherein a value of the first threshold is determined based on observed traffic patterns.
7. The method according to any of claims 2-6, wherein the value of the first threshold is dependent on a type of codec used.
8. The method according to claim 1 , wherein the received information is a scheduling request, and wherein determining (420) whether to change the buffer estimation state comprises:', '- estimating (425) a time of arrival in the user equipment of a current data unit indicated by the scheduling request,', '- estimating (426) a time of arrival in the user equipment of a data unit preceding the current data unit, and', '- changing (427) to the proactive state if a difference between the estimated time of arrival of the current data unit and the estimated time of arrival of the data unit preceding the current data unit is below a second threshold.
9. The method according to claim 8, wherein a value of the second threshold is smaller than a time interval between two consecutive silence indicator frames
10. The method according to any of claims 8-9, wherein the value of the second threshold is dependent on the type of codec used
11. The method according to any of the preceding claims, wherein the network node is a base station
12. A network node (500) for a wireless communications system, configured to support a change of a buffer estimation state of a user equipment from a passive to a proactive state, the network node comprising:', '- a receiver (501 ) configured to receive information describing a buffer status of the user equipment, and', '- a processing unit (502) configured to determine whether to change the buffer estimation state of the user equipment to the proactive state based on the received information
13. The network node according to claim 12, wherein the receiver (501) is configured to receive information comprising a segment of a data unit and a buffer status report comprising a buffer content size for the user equipment, and wherein the processing unit (502) is configured to determine whether to change the buffer estimation state by
14. The network node according to claim 13, wherein the processing unit (502) is 10 configured to determine whether to change the buffer estimation state by initially determining whether the segment of the data unit is a Packet Data Control Protocol, PDCP, control protocol data unit, and determining the sum and changing to the proactive state only if the segment of the data unit is determined not to be a PDCP control protocol data unit.1515. The network node according to any of claims 13-14, wherein a counter indicates the size of the previously received segments of the data unit, and wherein the processing unit (502) is configured to determine the sum by setting the counter to zero if the segment is the last segment of the data unit, and otherwise incrementing the counter
16. The network node according to any of claims 13-15, wherein a value of the first threshold is pre-determined.
18. The network node according to any of claims 13-17, wherein the value of the first threshold is dependent on a type of codec used.
20. The network node according to claim 19, wherein a value of the second threshold is smaller than a time interval between two consecutive silence indicator frames.
21. The network node according to any of claims 19-20, wherein the value of the second threshold is dependent on the type of codec used.
22. The network node according to any of claims 12-21 , wherein the network node is a base station.']
25 17. The network node according to any of claims 13-15, wherein a value of the first threshold is determined based on observed traffic patterns
35 estimating a time of arrival in the user equipment of a data unit preceding the current data unit, and changing to the proactive state if a difference between the estimated time of arrival of the current data unit and the estimated time of arrival of the data unit preceding the current data unit is below a second threshold.
3019. The network node according to claim 12, wherein the receiver (501 ) is configured to receive a scheduling request, and wherein the processing unit (502) is configured to determine whether to change the buffer estimation state by estimating a time of arrival in the user equipment of a current data unit indicated by the scheduling request,
Associated Portfolios
Licensor Claim Chart
 Claim Chart |
 Technology |
 Creation Date |
 Download |
|---|---|---|---|
|
Claim charts will soon be available!
|
|||
SUMMARY
ClaimChart-EP2724584A1-STO
Patent number:EP2724584A1
Claim Chart Type : SEP Claim Chart
Price: 200 €
Note:
The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.