RESIDUAL TRAFFIC STATE FOR WIRELESS NETWORKS

• US 20090141661A1
• Filed: 11/29/2007
• Published: 06/04/2009
• Est. Priority Date: 11/29/2007
• Status: Abandoned Application

• Current Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Original Assignee: Nokia Corporation, Nokia Solutions and Networks US LLC (Nokia Corporation)
• Inventors: Pandey, Ravi, Pichna, Roman, Li, Zexian
• Application Number:
  US11/947,748
• Publication Number:
  US 20090141661A1
• Time in Patent Office: Days
• US Class Current: 370/311
• CPC Class Codes: H04W 52/0212 managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Various example embodiments are disclosed herein. In an example embodiment, an apparatus may include a controller, a memory coupled to the controller and a wireless transceiver coupled to the controller. The apparatus may be configured to detect a residual traffic pattern associated with a mobile station in a wireless network, and transition the mobile station from an active state to a residual traffic state based on the detecting. The transitioning may include sending a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from a first UL service type to a second UL service type.

Claims

1. A method comprising:

detecting a residual traffic pattern associated with a mobile station in a wireless network; and

transitioning the mobile station from an active state to a residual traffic state based on the detecting, including;

sending a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from a first UL service type to a second UL service type.

2. The method of claim 1 wherein the detecting a residual traffic pattern associated with a mobile station in a wireless network comprises detecting only residual traffic to or from the mobile station.

3. The method of claim 1 wherein the detecting a residual traffic pattern associated with a mobile station in a wireless network comprises detecting an amount of traffic to or from the mobile station is less than a threshold amount over a period of time.

4. The method of claim 1 wherein the detecting a residual traffic pattern associated with a mobile station in a wireless network comprises detecting an amount of traffic transmitted from the mobile station is less than a threshold amount over a period of time.

5. The method of claim 1 wherein the detecting a residual traffic pattern associated with a mobile station in a wireless network comprises detecting an amount of traffic transmitted to the mobile station is less than a threshold amount over a period of time.

6. The method of claim 1 wherein the detecting a residual traffic pattern associated with a mobile station in a wireless network comprises detecting an amount of traffic directed to the mobile station that is stored in buffers at an access point is less than a threshold.

7. The method of claim 1 wherein the second UL service type providing unsolicited UL resource grants to the mobile station at periodic intervals, and the first UL service type providing resource grants to the mobile station upon solicitation or request from the mobile station.

8. The method of claim 1 wherein the sending a change uplink (UL) data service message to the mobile station comprises sending a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from a first UL service type to a second UL service type, the second service type including a data service where a base station provides unsolicited resource grants to the mobile station at periodic intervals.

9. The method of claim 1 wherein the second UL service type provides at least one of 1) unsolicited fixed size resource grants at periodic intervals, or 2) unsolicited dynamic size resource grants at periodic intervals where the size of the dynamic size resource grant may be adjusted based on a resource change request from the mobile station.

10. The method of claim 1 wherein the first UL service type includes a Best Effort service type, and the second UL service type includes one of an extended real time polling service (Extended rtPS) or an uplink grant service (UGS).

11. The method of claim 1 wherein the transitioning further includes buffering at least some downlink (DL) data directed to the mobile station until an amount of buffered data reaches a threshold or a time limit is reached.

12. The method of claim 1 and further comprising:

measuring an amount of residual traffic associated with the mobile station; and

adjusting one or more parameters associated with the UL data service for the mobile station at least while the mobile station is in the residual traffic state.

13. The method of claim 12 wherein the adjusting one or more parameters comprises adjusting one or more of a bit or data rate, resource grant size, or period between resource grants for the mobile station.

14. The method of claim 1 and further comprising:

detecting an active traffic pattern associated with the mobile station;

transitioning the mobile station from the residual traffic state to the active state based on the detecting the active traffic pattern, including;

sending a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from the second UL service type to the first UL service type.

15. The method of claim 14 wherein the detecting an active traffic pattern associated with the mobile station comprises detecting an amount of traffic to or from the mobile station over a period of time is greater than a threshold amount.

16. The method of claim 14 wherein the detecting an active traffic pattern associated with the mobile station comprises detecting an amount of active traffic to or from the mobile station over a period of time is greater than a threshold amount.

17. An apparatus comprising:

a controller;

a memory coupled to the controller; and

a wireless transceiver coupled to the controller;

the apparatus being configured to;

detect a residual traffic pattern associated with a mobile station in a wireless network; and

transition the mobile station from an active state to a residual traffic state based on the detected residual traffic pattern, including;

send a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from a first UL service type to a second UL service type.

18. The apparatus of claim 17 wherein the apparatus comprises a base station.

19. A method comprising:

detecting an active traffic pattern associated with a mobile station;

transitioning the mobile station from a residual traffic state to an active state based on the detecting the active traffic pattern, including;

sending a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from a first UL service type to a second UL service type.

20. The method of claim 19 wherein the sending a change uplink (UL) data service message comprises sending a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from a first UL service type to a second UL service type, the first UL service type providing unsolicited UL resource grants to the mobile station at periodic intervals, and the second UL service type providing resource grants to the mobile station upon solicitation or request from the mobile station.

21. The method of claim 19 wherein the second UL service type includes a Best Effort service type, and the first UL service type includes one of an extended real time polling service (Extended rtPS) or an uplink grant service (UGS).

22. An apparatus provided at a first physical access point (AP) in a wireless network comprising:

a controller;

a memory coupled to the controller; and

a wireless transceiver coupled to the controller;

the apparatus being configured to;

detect an active traffic pattern associated with a mobile station;

transition the mobile station from a residual traffic state to an active state based on the detected active traffic pattern, including;

send a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from a first UL service type to a second UL service type, the first UL service type providing unsolicited UL resource grants to the mobile station at periodic intervals, and the second UL service type providing resource grants to the mobile station upon solicitation or request from the mobile station.

23. A method comprising:

detecting, by a mobile station in a wireless network, a residual traffic pattern;

sending, in response to the detecting, a state transition request from the mobile station to an infrastructure node to request a transition to a residual traffic state for the mobile station;

receiving a message at the mobile station from the infrastructure node instructing the mobile station to enter a residual traffic state; and

entering, by the mobile station, a residual traffic state.

24. The method of claim 23 wherein the detecting comprises detecting, by a mobile station, a residual traffic pattern associated with a mobile station in a wireless network comprises detecting an amount of traffic transmitted from or received by the mobile station is less than a threshold amount over a period of time.

25. The method of claim 23 wherein the receiving a message comprises receiving a change uplink (UL) data service message to the mobile station to change the UL data service for the mobile station from a first UL service type to a second UL service type.