Scheduling with blind signaling

• US 20040268351A1
• Filed: 09/05/2003
• Published: 12/30/2004
• Est. Priority Date: 06/27/2003
• Status: Abandoned Application

• Current Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Sorensen, Troels B., Mogensen, Preben
• Application Number:
  US10/655,252
• Publication Number:
  US 20040268351A1
• Time in Patent Office: Days
• US Class Current: 718/100
• CPC Class Codes: H04L 12/56 Packet switching systems
• CPC Class Codes: H04L 47/25 with rate being modified by the source upon detecting a change of network conditions
• CPC Class Codes: H04L 47/50 Queue scheduling
• CPC Class Codes: H04L 47/52 by attributing bandwidth to queues
• CPC Class Codes: H04W 28/10 Flow control between communication endpoints
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

A scheduling method and device for scheduling data transmission, usually over a plurality of channels in a data network, wherein a utilization of an allocated maximum channel capacity in a received data stream of at least one of the plurality of channels is typically monitored, and future allocation of the maximum channel capacity is then normally controlled in response to the monitoring result. Thereby, data transmissions may be scheduled according to their often near instantaneous transmission capacity requirements, usually without requiring any explicit uplink signaling.

Claims

1. A scheduling device for scheduling data transmission over a plurality of channels in a data network, said device comprising

monitoring means for monitoring utilization of an allocated maximum channel capacity in a received data stream of at least one of said plurality of channels;

and

scheduling means for controlling allocation of said maximum channel capacity to said at least one of said plurality of channels in response to said monitoring means.

2. The device according to claim 1, wherein said monitoring means monitors utilization of said maximum channel capacity and wherein said maximum channel capacity corresponds to a maximum allowed data rate.

3. The device according to claim 2, wherein said monitoring means monitors said maximum allowed data rate and wherein said maximum data rate is set by a maximum transport format combination.

4. The device according to claim 2, wherein said monitoring means is configured to derive said maximum transport format combination by decoding a transport format combination indication information provided in said received data stream.

5. The device according to claim 1, wherein said monitoring means is configured to perform said monitoring for a predetermined time period and to determine the number of transmission time intervals during which said maximum channel capacity is used in said received data stream.

6. The device according to claim 5, wherein said scheduling means is configured to increase said maximum channel capacity if said number of transmission time intervals determined by said monitoring means exceeds a predetermined number, and to decrease said maximum channel capacity if said number of transmission time intervals does not exceed said predetermined number.

7. The device according to claim 5, wherein said monitoring means is configured to perform said monitoring for said predetermined time period and wherein said predetermined time period corresponds to eight transmission time intervals.

8. The device according to claim 1, wherein said plurality of channels are dedicated uplink channels of a radio access network.

9. The device according to claim 1, wherein said scheduling device comprises a base station device.

10. A scheduling method of scheduling data transmission over a plurality of channels in a data network, said method comprising the steps of:

monitoring utilization of an allocated maximum channel capacity in a received data stream of at least one of said plurality of channels; and

controlling allocation of said maximum channel capacity to said at least one of said plurality of channels in response to the result of said monitoring step.

11. The method according to claim 10, wherein, in said monitoring step, said maximum channel capacity comprises a maximum allowed data rate.

12. The method according to claim 11, further comprising the step of setting said maximum allowed data rate by a maximum allowed transport format combination.

13. The method according to claim 12, wherein said monitoring step comprises the step of deriving said maximum transport format combination by decoding a transport format combination indication information provided in said received data stream.

14. The method according to claim 10, wherein said monitoring step is performed for a predetermined time period and comprises the step of determining the number of transmission time intervals during which said maximum channel capacity is used in said received data stream.

15. The method according to claim 14, wherein said controlling step comprises the steps of increasing said maximum channel capacity if said number of transmission time intervals determined in said monitoring step exceeds a predetermined number, and decreasing said maximum channel capacity if said determined number of transmission time intervals does not exceed said predetermined number.

16. The method according to claim 14, further comprising the step of setting said predetermined time period to a value comprising eight transmission time intervals.

17. A scheduling device for scheduling data transmission over a plurality of channels in a data network, said device comprising:

a utilization monitoring block for monitoring utilization of an allocated maximum channel capacity in a received data stream of at least one of said plurality of channels; and

a scheduling block for controlling allocation of said maximum channel capacity to said at least one of said plurality of channels in response to said utilization monitoring block.