Method to minimize interrupt service and power consumption for wireless connectivity devices

• US 20030065851A1
• Filed: 09/28/2001
• Published: 04/03/2003
• Est. Priority Date: 09/28/2001
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Layman, David
• Granted Patent: US 7,085,868 B2
• Time in Patent Office: Days
• US Class Current: 710/260
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method for filtering requests in portable devices is described. Nonvolatile flash memory is used to store allowable client addresses. The discovery, service discovery, and connection filter algorithms reduces power and processing bandwidth required from portable, mobile devices.

Claims

1. A method of filtering a device request, comprising:

running a discovery filter algorithm;

running a service discovery filter algorithm; and

running a connection filter algorithm.

2. The method of claim 1, wherein the discovery filter algorithm is implemented in a first device and receives a discovery request from a second device.

3. The method of claim 1, wherein the discovery filter algorithm determines if the device request is from an approved device prior to responding to an discovery inquiry if a filter mode is set.

4. The method of claim 3, wherein an approved list is used to determine if the discovery requesting device is an approved device.

5. The method of claim 3, wherein the filter mode is defined by a state bit stored in memory.

6. The method of claim 5, wherein the memory is a nonvolatile memory.

7. The method of claim 6, wherein the nonvolatile memory is a flash electrically programmable erasable read only memory (EEPROM) array.

8. The method of claim 3, wherein the user is prompted to decide if a requested operation will be allowed if the requesting device is not on the approved permissions list.

9. The method of claim 1, wherein the service discovery filter algorithm filters connection requests to a service discovery database.

10. The method of claim 9, wherein the services comprise:

accessing internet gateways; and

accessing printers.

11. The method of claim 9, wherein the service discovery filter algorithm refuses connection to the service discovery database if the device is not on the approved permissions list.

12. The method of claim 1, wherein the connection filter algorithm passes the client device'"'"'s request to the upper layer host stack for normal processing if the connection request is approved.

13. A system comprising:

a bus;

a central processing unit (CPU), wherein the CPU is coupled to the bus;

a nonvolatile memory array, wherein the nonvolatile memory array stores a plurality of device addresses used to filter, wherein the nonvolatile memory array is coupled to the bus;

a baseband processor, wherein the baseband processor comprises a plurality of filtering algorithms, wherein the baseband processor executes the plurality of filtering algorithms, wherein the baseband processor is coupled to the bus; and

a user interface, wherein the user interface is coupled to the bus.

14. The system of claim 13, wherein the nonvolatile memory array contains software code that implements the plurality of filtering algorithms.

15. The system of claim 13, wherein the nonvolatile memory array is used to store a plurality of permission bits.

16. The system of claim 13, wherein the plurality of permission bits comprise:

a discovery permission bit;

a service query permission bit; and

a connect permission bit.

17. The system of claim 13, wherein the nonvolatile memory array is a flash electrically programmable erasable read only memory (EEPROM) array.

18. The system of claim 13, wherein the plurality of filter algorithms comprise:

a discovery filter algorithm;

a service database query filter algorithm; and

a connection filter algorithm.

19. An article comprising a machine readable medium having a plurality of machine readable instructions, wherein when the instructions are executed by a processor, the instructions cause a system to:

run a discovery filter algorithm; and

run a service discovery filter algorithm.

20. The article of claim 19, comprising a machine readable medium having a plurality of machine readable instructions, wherein when the instructions are executed by a processor, the instructions further cause a system to:

run a connection filter algorithm.

21. An apparatus comprising:

means for receiving a discovery request from a device;

means for filtering a plurality of inquiries from the device using a filter list;

means for receiving a plurality of service queries;

means for decoding a plurality of service queries; and

means for filtering a plurality of service queries;

22. The apparatus of claim 21 further comprising a means for filtering a plurality of connection requests to a discovered service endpoint.

23. A method of filtering a plurality of service discovery requests, comprising:

receiving requests to a service directory address endpoint from the initiating device;

decoding requests to a service directory address endpoint from the initiating device;

searching the requested device address in the filter list to determine if the filter state bit is on; and

passing the service database endpoint connection request on to the upper layer host protocol stack for normal processing if the service discovery permission bit is set.

24. The method of claim 23, further comprising determining if the prompt state bit is on if the initiating device address is not in the filter list.

25. The method of claim 24, further comprising prompting the user for permission to allow service discovery if the prompt bit is on.