Uplink Scheduling in a Mobile Telecommunication Network

• US 20090143071A1
• Filed: 05/26/2005
• Published: 06/04/2009
• Est. Priority Date: 05/26/2005
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Torsner, Johan, Bergstrom, Joakim
• Granted Patent: US 8,005,481 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention relates to a node B comprising a downlink data scheduler and an uplink data scheduler, wherein the node B comprises means for transferring information associated with a downlink data transfer from said downlink data scheduler to said uplink data scheduler, and that the uplink data scheduler comprises means for scheduling an uplink data transfer as a result of the transmission of said downlink data transfer.

Claims

1. A node B comprising a downlink data scheduler and an uplink data scheduler, characterised in that the node B comprises means for transferring information associated with a downlink data transfer from said downlink data scheduler to said uplink data scheduler, and that the uplink data scheduler comprises means for scheduling an uplink data transfer as a result of the transmission of said downlink data transfer.

2. The node B according to claim 1, wherein the uplink transfer is a response of the downlink data transfer.

3. The node B according to claim 1, wherein the means for scheduling an uplink data transfer comprises means for transmitting a scheduling grant indicator indicating when and/or how the UE is allowed to transmit uplink data

4. The node B according to claim 1, wherein the means for scheduling an uplink data transfer comprises means for transmitting a scheduling grant indicator simultaneously as the transmission of said downlink data transfer.

5. The node B according to claim 1, wherein the means for scheduling an uplink data transfer comprises means for transmitting a scheduling grant indicator included in a downlink message transmitted together with, i.e. on the same channel as, the downlink data transmission.

6. The node B according to claim 1, wherein the means for scheduling an uplink data transfer comprises means for transmitting a scheduling grant indicator on a downlink channel adapted to schedule the uplink data transfer.

7. The node B according to claim 1, wherein the downlink channel adapted to schedule the uplink is the enhanced Absolute Grant Channel.

8. The node B according to claim 1, wherein the means for scheduling an uplink data transfer comprises means for scheduling the uplink data transfer within a predefined time period after the downlink data is received.

9. The node B according to claim 1, wherein the means for scheduling an uplink data transfer comprises means for allocating an amount of uplink resources in relation to the amount of transmitted downlink data.

10. The node B according to claim 1, wherein the node B is implemented in a Universal Mobile Telephone System.

11. A method in a Node B comprising a downlink data Scheduler and an uplink data scheduler, characterised in that the method comprises the steps of:

transferring information associated with a downlink data transfer from said downlink data scheduler to said uplink data scheduler, and

scheduling an uplink data transfer as a result of the transmission of said downlink data transfer.

12. The method according to claim 11, wherein the uplink transfer is a response of the downlink data transfer.

13. The method according to claim 11, wherein the step of scheduling an uplink data transfer comprises the further step of transmitting a scheduling grant indicator indicating when and/or how the UE is allowed to transmit uplink data.

14. The method according to claim 13, wherein the step of scheduling an uplink data transfer comprises the step of transmitting a scheduling grant indicator simultaneously as the transmission of said downlink data transfer.

15. The method according to claim 14, wherein the step of scheduling an uplink data transfer comprises the step of transmitting a scheduling grant indicator included in a downlink message transmitted together with, i.e. on the same channel as, the downlink data transmission.

16. The method according to claim 11, wherein the step of scheduling an uplink data transfer comprises the step of transmitting a scheduling grant indicator on a downlink channel adapted to schedule the uplink data transfer.

17. The method according to claim 16, wherein the downlink channel adapted to schedule the uplink is the enhanced Absolute Grant Channel.

18. The method according to claim 11, wherein the step of scheduling an uplink data transfer comprises the step of scheduling the uplink data transfer within a predefined time period after the downlink data is received.

19. The method according to claim 11, wherein the step of scheduling an uplink data transfer comprises the step of allocating an amount of uplink resources in relation to the amount of transmitted downlink data.