METHOD TO IMPROVE THROUGHPUT AND POWER CONSUMPTION EFFICIENCY IN WIRELESS COMMUNICATION SYSTEMS

• US 20100165925A1
• Filed: 05/02/2005
• Published: 07/01/2010
• Est. Priority Date: 05/04/2004
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Del Prado Pavon, Javier, Habetha, Joerg
• Granted Patent: US 8,737,312 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/0816 with collision avoidance
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

In accordance with an example embodiment, method of wireless communication includes sending a beacon frame (300), which includes at least one availability information element (AIE) (400, 404). The method also includes scheduling transmission and reception of traffic among a plurality of devices (101, 103), or systems (101, 103), or both based on the AIES from the receivers. A wireless network (100) is also disclosed.

Claims

1. A method of wireless communication, the method comprising:

providing an availability information element (AIE) (400, 404); and

scheduling transmission and reception of traffic among a plurality of devices (101′

, 101, 103), or systems (101′

,101, 103), or both, based on the AIE.

2. A method as recited in claim 1, wherein the AIE includes an availability bitmap (403).

3. A method as recited in claim 2, wherein the availability bitmap provides a bit for each medium access slot (MAS) (203) of a superframe.

4. A method as recited in claim 3, wherein the availability of each MAS is determined by the bit.

5. A method as recited in claim 3, wherein the superframe equals a beacon interval (204).

6. A method as recited in claim 1, wherein the AIE includes a beacon period start time (BPST) offset (407) and a duration (406).

7. A method as recited in claim 1, wherein the AIE provides information about a power save mode period.

8. A method as recited in claim 1, wherein the AIE indicates scanning scheduling.

9. A method as recited in claim 1, wherein the AIE indicates communication from hidden neighbors.

10. A method as recited in claim 4, wherein a ‘

0’

bit indicates availability during a MAS and a ‘

1’

bit indicates lack of availability during a MAS.

11. A wireless network (100), comprising:

a plurality of wireless elements (101′

, 101, 103), wherein the network is adapted to provide an availability information element (AIE) (400, 404), and the wireless elements schedule transmission and reception of traffic based on the AIE.

12. A wireless network as recited in claim 11, wherein the wireless elements include wireless devices (101′

, 101, 103), or wireless systems (101′

, 101, 103), or both.

13. A wireless network claim 11, wherein the AIE includes an availability bitmap (403).

14. A wireless network as recited in claim 13, wherein the availability bitmap provides a bit for each medium access slot (MAS) (203) of a superframe.

15. A wireless network as recited in claim 14, wherein the availability of each MAS is determined by the bit.

16. A wireless network as recited in claim 14, wherein the superframe equals a beacon interval (204).

17. A wireless network as recited in claim 11, wherein the AIE provides information about a power save mode period.

18. A wireless network as recited in claim 11, wherein the AIE indicates scanning scheduling.

19. A wireless network as recited in claim 11, wherein the AIE indicates communication from hidden neighbors.

20. A wireless network as recited in claim 11, wherein the AIE includes a beacon period start time (BPST) offset (407) and a duration (406).