WIRELESS DYNAMIC RATE ADAPTATION ALGORITHM

• US 20090059872A1
• Filed: 08/31/2007
• Published: 03/05/2009
• Est. Priority Date: 08/31/2007
• Status: Abandoned Application

• Current Assignee: Symbol Technologies, LLC (Zebra Technologies Corporation)
• Original Assignee: Symbol Technologies, Inc. (Zebra Technologies Corporation)
• Inventors: MALIK, Ajay, BATTA, Puneet
• Application Number:
  US11/848,694
• Publication Number:
  US 20090059872A1
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals

Abstract

A wireless switch is provided. A processor is adapted to set a radio frequency (RF) transmission speed for a wireless client based on a location of the wireless client and a signal-to-noise ratio (S/N) of a radio frequency signal received by the wireless client.

Claims

1. A wireless switch, comprising:

a processor adapted to set a radio frequency (RF) transmission speed for a wireless client based on a location of the wireless client and a signal-to-noise ratio (S/N) of a radio frequency signal received by the wireless client.

2. The wireless switch of claim 1, wherein the processor is further adapted to implement an algorithm that increases the transmission speed if the signal-to-noise ratio increases.

3. The wireless switch of claim 2, wherein the processor is further adapted to implement an algorithm that decreases the transmission speed if the signal-to-noise ratio decreases.

4. The wireless switch of claim 1, wherein the processor is further adapted to determine the location of the wireless client.

5. The wireless switch of claim 4, wherein the processor analyzes a time-of-arrival (ToA) or a time-difference-of-arrival (TDOA) parameter to determine the location of the wireless client.

6. The wireless switch of claim 3, wherein the algorithm analyzes a received signal strength indicator (RSSI) obtained from the wireless client.

7. The wireless switch of claim 1, wherein the processor receives signal-to-noise ratio data over a predetermined period of time and determines an average signal-to-noise ratio of the radio frequency signal for the wireless client.

8. The wireless switch of claim 1, wherein the processor is further adapted to set the radio frequency transmission speed based on a client type or an application associated with the wireless client.

9. The wireless switch of claim 8, wherein the processor is further adapted to determine the client type or the application associated with the wireless client.

10. The wireless switch of claim 4, further including a location engine integrated into the switch for determining the location of the wireless client.

11. The wireless switch of claim 10, wherein the processor is integrated into the location engine.

12. A system for managing radio frequency (RF) transmission speed in an environment, comprising:

processing means for dynamically setting a radio frequency (RF) transmission speed for a wireless client based on a location of the wireless client and a signal-to-noise ratio (S/N) of a radio frequency signal received by the wireless client.

13. The system of claim 12, wherein the processing means increases the transmission speed if the signal-to-noise ratio increases.

14. The system of claim 13, wherein the processing means decreases the transmission speed if the signal-to-noise ratio decreases.

15. The system of claim 12, wherein the processing means determines the location of the wireless client.

16. The system of claim 15, wherein the processing means analyses a time-of-arrival (ToA) or a time-difference-of-arrival (TDoA) parameter to determine the location of the wireless client.

17. The system of claim 12, wherein the processing means sets the radio frequency transmission speed based on a client type or an application associated with the wireless client.

18. A computer program product, comprising:

a computer-usable medium having computer-readable code embodied therein for managing radio frequency (RF) transmission speed in an environment, the computer program product comprising;

a first executable computer-readable code configured to cause a computer processor to dynamically set a radio frequency (RF) transmission speed for a wireless client based on a location of the wireless client and a signal-to-noise ratio (S/N) of a radio frequency signal received by the wireless client.

19. The computer program product of claim 18, further including a second executable computer-readable code configured to cause the computer processor to increase the transmission speed if the signal-to-noise ratio increases and decrease the transmission speed if the signal-to-noise ratio decreases.

20. The computer program product of claim 18, further including a second executable computer-readable code configured to cause the computer processor to determine the location of the wireless client.