Method and Mobile Terminal Providing Priority-Based Uplink Scheduling Information

• US 20150043547A1
• Filed: 10/22/2014
• Published: 02/12/2015
• Est. Priority Date: 10/17/2008
• Status: Abandoned Application

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Pelletier, Ghyslain, Lindstrm, Magnus
• Application Number:
  US14/521,079
• Publication Number:
  US 20150043547A1
• Time in Patent Office: Days
• US Class Current: 370/336
• CPC Class Codes: H04W 28/0278 using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/569 of the traffic information

Abstract

A method and mobile terminal for providing uplink scheduling information to a scheduler in a wireless telecommunication system. When a logical channel having data available to transmit triggers a buffer status report, the mobile terminal determines whether a priority level associated with the logical channel exceeds a predefined threshold. If so, the mobile terminal performs a scheduling request procedure with the scheduler. If not, the mobile terminal delays the scheduling request procedure until a predefined timing event has occurred. The predefined timing event may be at least one of expiration of a timer, a radio bearer associated with the logical channel becoming active, and if the scheduling request procedure is being performed using a contention-based random access, contention resolution succeeding for the mobile terminal.

Claims

1. A method in a mobile terminal for providing uplink scheduling information to a scheduler in a wireless telecommunication system, said method comprising the steps of:

receiving information regarding a logical channel group having a logical channel that has triggered a buffer status report, the logical channel having a priority level associated therewith and having data available for transmission;

determining whether the priority level associated with the logical channel exceeds a predefined threshold;

upon determining that the priority level exceeds the predefined threshold, performing a scheduling request procedure with the scheduler; and

upon determining that the priority level does not exceed the predefined threshold, delaying the scheduling request procedure until a predefined timing event has occurred.

2. The method according to claim 1, wherein the scheduling request procedure includes transmitting the buffer status report.

3. The method according to claim 2, wherein the step of delaying the scheduling request procedure until a predefined timing event has occurred includes delaying the scheduling request procedure until radio bearers associated with the logical channel group are active.

4. The method according to claim 2, wherein the scheduling request procedure is being performed using a contention-based random access, and the step of delaying the scheduling request procedure until a predefined timing event has occurred includes delaying the transmission of the buffer status report until contention resolution has succeeded for the mobile terminal.

5. A method in a mobile terminal for providing uplink scheduling information to a scheduler in a wireless telecommunication system, said method comprising the steps of:

receiving information regarding a logical channel group having a logical channel that has triggered a buffer status report;

determining whether a radio bearer associated with the logical channel is active or suspended;

upon determining that the radio bearer associated with the logical channel is active, performing a scheduling request procedure with the scheduler; and

upon determining that the radio bearer associated with the logical channel is suspended, delaying the scheduling request procedure until the radio bearer becomes active.

6. The method according to claim 5, wherein the scheduling request procedure includes transmitting the buffer status report.

7. A method in a mobile terminal for providing uplink scheduling information to a scheduler in a wireless telecommunication system, said method comprising the steps of:

determining that a logical channel in a logical channel group has triggered a scheduling request procedure;

determining whether the scheduling request procedure is being performed using a contention-based random access;

upon determining that the scheduling request procedure is not being performed using a contention-based random access, performing the scheduling request procedure with the scheduler, wherein the scheduling request procedure includes transmitting buffer status reporting information;

upon determining that the scheduling request procedure is being performed using a contention-based random access, determining whether contention resolution has succeeded for the mobile terminal; and

upon determining that contention resolution has not succeeded for the mobile terminal, performing the scheduling request procedure without transmitting the buffer status reporting information.

8. The method according to claim 7, further comprising, upon determining that contention resolution has succeeded for the mobile terminal, the step of transmitting the buffer status reporting information.

9. A mobile terminal for providing uplink scheduling information to scheduler a wireless telecommunication system, said mobile terminal comprising:

a memory for storing instructions and a processor for executing instructions stored on the memory, the mobile terminal configured to;

determine a priority level associated with a logical channel of a logical channel group, wherein the logical channel has triggered a buffer status report;

determine whether the priority level associated with the logical channel exceeds a predefined threshold;

perform a scheduling request procedure with the scheduler whenever the priority level exceeds the predefined threshold; and

delay the scheduling request procedure until a predefined timing event has occurred whenever the priority level does not exceed the predefined threshold.

10. The mobile terminal according to claim 9, wherein the scheduling request procedure includes transmitting the buffer status report.

11. The mobile terminal according to claim 9, the mobile terminal further configured to:

determine whether a radio bearer associated with the logical channel is active, wherein the scheduling request procedure is performed only if the radio bearer associated with the logical channel is active.

12. The mobile terminal according to claim 9, the mobile terminal further configured to:

determine whether the scheduling request procedure is being performed using a contention-based random access; and

transmit the buffer status report whenever the scheduling request procedure is not being performed using a contention-based random access.

13. The mobile terminal according to claim 9, the mobile terminal further configured to:

determine whether the scheduling request procedure is being performed using a contention-based random access;

determine whether contention resolution has succeeded for the mobile terminal whenever the scheduling request procedure is being performed using a contention-based random access; and

perform the scheduling request procedure without transmitting the buffer status report whenever contention resolution has not succeeded for the mobile terminal.

14. The mobile terminal according to claim 9, wherein delaying the scheduling request procedure until a predefined timing event has occurred includes delaying the scheduling request procedure until at least one of the following events has occurred:

expiration of a timer;

a radio bearer associated with the logical channel becomes active; and

contention resolution has succeeded for the mobile terminal whenever the scheduling request procedure is being performed using a contention-based random access.

15. A method in a mobile terminal for providing uplink scheduling information to a scheduler in a wireless telecommunication system, said method comprising the steps of:

receiving information regarding a logical channel group that has triggered a buffer status report, the logical channel group having a priority level associated therewith and having data available for transmission;

determining whether the priority level associated with the logical channel group exceeds a predefined threshold;

upon determining that the priority level exceeds the predefined threshold, performing a scheduling request procedure with the scheduler; and

upon determining that the priority level does not exceed the predefined threshold, delaying the scheduling request procedure until a predefined timing event has occurred.

16. The method according to claim 15, wherein the priority of the logical channel group is equal to the priority of the highest priority logical channel within the logical channel group.

17. The method according to claim 15, wherein the priority of the logical channel group is assigned independent of the priorities of logical channels within the logical channel group.