Method and an apparatus to control scheduling

Patent metadata

Field	Value
Publication number	US-10028295-B2
Application number	US-201414305467-A
Country	US
Kind code	B2
Filing date	Jun 16, 2014
Priority date	Oct 1, 2009
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A method of scheduling resources in a communications link wherein a scheduling request is transmitted from a first entity to a second entity including determining if any of the following conditions exist: the time elapsed since the last scheduling request exceeds a designated time; the up-link requirement exceeds a predetermined level; or semi-persistent scheduling exists; and if so, suppressing the transmission and/or triggering of scheduling requests.

First claim

We claim:

1. A method comprising: scheduling resources comprising transmitting scheduling requests from a first entity to a second entity; determining that a number of Time Transmission Intervals or sub-frames that have elapsed since a previous scheduling request is less than a predetermined integer value and that an uplink requirement exceeds a certain level based on identified start or end periods of data spurts in bursty traffic; and based on determining that the number of elapsed Time Transmission Intervals or sub-frames is less than the predetermined integer value and that the uplink requirement exceeds the certain level, suppressing a transmission of at least one of the scheduling requests.

2. The method as claimed in claim 1 , wherein the first entity is a user equipment and the second entity is a base station.

3. The method as claimed in claim 1 , wherein the transmitting the scheduling request is made via a Physical Uplink Control Channel of an E-UTRA system.

4. The method as claimed in claim 1 , further comprising allocating a same periodic uplink transmission resource during the identified periods of the data spurts in the bursty traffic, wherein the same periodic uplink transmission resource is turned on during the periods of the data spurts and turned off between the periods of the data spurts.

5. The method as claimed in claim 1 , wherein said bursty traffic is voice traffic or VoIP data packets.

6. The method as claimed in claim 1 , wherein the transmission of the at least one scheduling request is suppressed in response to a number of Time Transmission Intervals or sub-frames that have elapsed since a last Uplink Grant being less than the predetermined integer value.

7. The method as claimed in claim 1 , wherein said predetermined integer value varies according to a traffic type, a base station or cell load, or a periodicity of buffer status reports associated with the at least one of the scheduling request.

8. The method as claimed in claim 1 , wherein suppressing the transmission of the at least one scheduling request comprises not transmitting or not triggering the at least one scheduling request.

9. The method as claimed in claim 1 , wherein suppressing the transmission of the at least one scheduling request comprises intermittently turning on or intermittently turning off the transceiver of said first entity.

10. The method as claimed in claim 1 , wherein a plurality of sub-frames for transmission of the scheduling requests relate to the Physical Uplink Control Channel or the Physical Downlink Control Channel.

11. A computer program product comprising a non-transitory computer-readable medium storing instructions for execution by one or more processors, wherein the computer-readable medium includes instructions for performing at least the following: scheduling resources comprising transmitting scheduling requests from a first entity to a second entity; determining that a number of Time Transmission Intervals or sub-frames that have elapsed since a previous scheduling request is less than a predetermined integer value and that an uplink requirement exceeds a certain level based on identified start or end periods of data spurts in bursty traffic; and based on determining that the number of elapsed Time Transmission Intervals or sub-frames is less than the predetermined integer value and that the uplink requirement exceeds the certain level, suppressing a transmission of at least one of the scheduling requests.

12. A user equipment comprising: one or more processors and one or more memories including computer program code, the one or more memories and the computer program code being configured, with the one or more processors, to cause the user equipment to perform at least: scheduling resources comprising transmitting scheduling requests from a first entity to a second entity; determining that a number of Time Transmission Intervals or sub-frames that have elapsed since a previous scheduling request is less than a predetermined integer value and that an uplink requirement exceeds a certain level based on identified start or end periods of data spurts in bursty traffic; and based on determining that the number of elapsed Time Transmission Intervals or sub-frames is less than the predetermined integer value and that the uplink requirement exceeds the certain level, suppressing a transmission of at least one of the scheduling requests.

13. A base station comprising: one or more processors and one or more memories including computer program code, the one or more memories and the computer program code being configured, with the one or more processors, to cause the base station to perform at least: scheduling resources comprising transmitting scheduling requests from a first entity to a second entity; determining that a number of Time Transmission Intervals or sub-frames that have elapsed since a previous scheduling request is less than a predetermined integer value and that an uplink requirement exceeds a certain level based on identified start or end periods of data spurts in bursty traffic; and based on determining that the number of elapsed Time Transmission Intervals or sub-frames is less than the predetermined integer value and that the uplink requirement exceeds the certain level, suppressing a transmission of at least one of the scheduling requests.

14. The user equipment as claimed in claim 12 , wherein the one or more memories and the computer program code are further configured, with the one or more processors, to cause the user equipment to perform at least: one of sending and receiving the scheduling requests via a Physical Uplink Control Channel of an E-UTRA system.

15. The user equipment as claimed in claim 12 , wherein the one or more memories and the computer program code are further configured, with the one or more processors, to cause the user equipment to perform at least: analyzing an uplink traffic pattern to identify a link requirement.

16. The user equipment as claimed in claim 12 , wherein the one or more memories and the computer program code are further configured, with the one or more processors, to cause the user equipment to perform at least: allocating a same periodic uplink transmission resource during the identified periods of the data spurts in the bursty traffic, wherein the same periodic uplink transmission resource is turned on during the periods of the data spurts and turned off between the periods of the data spurts.

17. The user equipment as claimed in claim 12 , wherein said bursty traffic is voice traffic or VoiP data packets.

18. The user equipment as claimed in claim 12 , wherein the one or more memories and the computer program code are further configured, with the one or more processors, to cause the user equipment to perform at least: suppressing the at least one scheduling request in response to a number of Time Transmission Intervals or sub-frames that have elapsed since a last Uplink Grant being less than the predetermined integer value.

19. The user equipment as claimed in claim 12 , wherein suppressing the transmission of the at least one scheduling request comprises intermittently turning on or intermittently turning off a transceiver.

20. The user equipment as claimed in claim 12 , wherein a plurality of sub-frames for the transmission of the scheduling requests relate to the Physical Uplink Control Channel or the Physical Downlink Control Channel.

21. The user equipment as claimed in claim 18 , wherein the predetermined integer value varies according to a tra

Assignees

• Nokia Solutions & Networks Oy

Inventors

• Rosa Claudio
• Kolding Troels Emil
• Sebire Benoist Pierre

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W28/0278

  using buffer status reports (dynamic wireless traffic scheduling definition H04W72/12) · CPC title

• H04W72/1278

  Electricity · mapped topic

• H04W72/1221 Primary

  based on age of data to be sent · CPC title

• H04W28/06

  Optimizing {the usage of the radio link}, e.g. header compression, information sizing {, discarding information (system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365)} · CPC title