Method for Scheduling a Device Notification Time Slot for a Wireless USB System

• US 20090006676A1
• Filed: 06/29/2007
• Published: 01/01/2009
• Est. Priority Date: 06/29/2007
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Ughreja, RAKESH Avichal, Sampat, PRAVEEN
• Application Number:
  US11/771,562
• Publication Number:
  US 20090006676A1
• Time in Patent Office: Days
• US Class Current: 710/62
• CPC Class Codes: G06F 13/385 for adaptation of a particular data processing system to different peripheral devices
• CPC Class Codes: G06F 2213/3814 Wireless link with a computer system port

Abstract

Disclosed is a method for scheduling a Device Notification Time Slot (DNTS) for transferring a data between a wireless Universal Synchronous Bus (USB) device and a wireless USB host. The method comprises determining whether the wireless USB device endpoint is in a flow control state; performing one of scheduling the DNTS in each of a plurality of Micro-scheduled Management Commands (MMCs) and scheduling the DNTS after a fixed time interval in a MMC of the plurality of MMCs upon determining whether the wireless USB device endpoint is in the flow control state; and transferring the data between the wireless USB device and the wireless USB host when the wireless USB device is ready for transferring the data and the wireless USB device has received the DNTS in the MMC of the plurality of MMCs.

Claims

1. A method for scheduling a Device Notification Time Slot (DNTS) for transferring data between a wireless Universal Synchronous Bus (USB) device and a wireless USB host, the method comprising:

determining whether the wireless USB device endpoint is in a flow control state;

performing one of;

scheduling the DNTS in each of a plurality of Micro-scheduled Management Commands (MMCs), or

scheduling the DNTS after a fixed time interval in a MMC of the plurality of MMCs upon determining whether the wireless USB device endpoint is in the flow control state,

wherein the plurality of MMCs are received by the wireless USB device from the wireless USB host; and

transferring the data between the wireless USB host and the wireless USB device when the wireless USB device is ready for data transfer and the wireless USB device has received the DNTS in the MMC of the plurality of MMCs.

2. The method of claim 1, wherein the DNTS is scheduled in each of the plurality of MMCs when the wireless USB device is in the flow control state.

3. The method of claim 1, wherein determining whether the wireless USB device endpoint is in the flow control state is done at a run time.

4. The method of claim 1, wherein a wireless USB host controller driver configures the wireless USB host to schedule the DNTS.

5. The method of claim 4, wherein the wireless USB host controller driver comprises a client driver software, a USB driver and a wireless USB host controller driver.

6. The method of claim 1, wherein the wireless USB device is one of a mouse, a keyboard, a flash drive, a camera, a scanner, a printer, a joystick and a personal digital assistant.

7. The method of claim 1, wherein the flow control state occurs when a number of buffers in the wireless USB device needed for transferring the data between the wireless USB host and the wireless USB device is less than a predetermined value.

8. A computer program product embodied on a computer readable medium for scheduling a Device Notification Time Slot (DNTS) for transferring a data between a wireless Universal Synchronous Bus (USB) device and a wireless USB host, the computer program product comprising a program module having instructions for:

determining whether the wireless USB device endpoint is in a flow control state, performing one of;

scheduling the DNTS in each of a plurality of Micro-scheduled Management Commands (MMCs), or

scheduling the DNTS after a fixed time interval in a MMC of the plurality of MMCs upon determining whether the wireless USB device endpoint is in the flow control state,

wherein the plurality of MMCs are received by the wireless USB device from the wireless USB host; and

transferring the data between the wireless USB host and the wireless USB device when the wireless USB device is ready for transferring the data and the wireless USB device has received the DNTS in the MMC of the plurality of MMCs.

9. The computer program product of claim 8, wherein the DNTS is scheduled in each of the plurality of MMCs when the wireless USB device is in the flow control state.

10. The computer program product of claim 8, wherein determining whether the wireless USB device endpoint is in the flow control state is done at a run time.

11. The computer program product of claim 8, wherein a wireless USB host controller driver configures the wireless USB host to schedule the DNTS.

12. The computer program product of claim 11, wherein the wireless USB host controller driver comprises a client driver software, a USB driver and a wireless USB host controller driver.

13. The computer program product of claim 8, wherein the wireless USB device is one of a mouse, a keyboard, a flash drive, a camera, a scanner, a printer, a joystick and a personal digital assistant.

14. The computer program product of claim 8, wherein the flow control state occurs when a number of buffers in the wireless USB device needed for transferring the data between the wireless USB host and the wireless USB device is less than a predetermined value.

15. A method for scheduling a Device Notification Time Slot (DNTS) for transferring a data between a wireless Universal Synchronous Bus (USB) device and a wireless USB host, the method comprising:

scheduling the DNTS in each of a plurality of Micro-scheduled Management Commands (MMCs) when the wireless USB device endpoint is in a flow control state,; and

transferring the data between the wireless USB host and the wireless USB device when the wireless USB device is ready for transferring the data and the wireless USB device has received the DNTS in a MMC of the plurality of MMCs.

16. The method of claim 15, wherein a wireless USB host controller driver configures the wireless USB host to schedule the DNTS.

17. The method of claim 15, wherein the wireless USB host controller driver comprises a client driver software, a USB driver and a wireless USB host controller driver.

18. The method of claim 15, wherein the wireless USB device is one of a mouse, a keyboard, a flash drive, a camera, a scanner, a printer, a joystick and a personal digital assistant.

19. The method of claim 15, wherein the flow control state occurs when a number of buffers in the wireless USB device needed for transferring the data between the wireless USB host and the wireless USB device is less than a predetermined value, and wherein the plurality of MMCs are received by the wireless USB device from the wireless USB host.