Method and apparatus for adjusting operational parameter of a wireless device bases upon a monitored characteristic

• US 7,421,248 B1
• Filed: 11/12/2002
• Issued: 09/02/2008
• Est. Priority Date: 11/12/2002
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Toor, Kamaldip, Laux, Carlos V., de Siqueira, Marcio G., Valluru, Sudhakar S., Hayashi, Steven
• Primary Examiner(s): Cumming; William D
• Application Number:
  US10/293,396
• Time in Patent Office: 2,121 Days
• Field of Search: 370/332, 370/352, 455/67.11, 455/445, 379/265.06
• US Class Current: 455/67.11
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0007 by modifying the frame length
• CPC Class Codes: H04L 1/0014 by adapting the source coding
• CPC Class Codes: H04L 1/0015 characterised by the adaptation strategy
• CPC Class Codes: H04W 52/245 taking into account received signal strength
• CPC Class Codes: H04W 52/247 where the output power of a terminal is based on a path parameter sent by another terminal
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 76/20 Manipulation of established connections
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A method includes establishing a communication session at a wireless device and monitoring at least one characteristic associated with the communication session. The method also includes adjusting at least one operational parameter of the wireless device based on the at least one monitored characteristic.

Claims

1. A method, comprising:

establishing a communication session at a wireless device;

monitoring at least one characteristic associated with the communication session; and

adjusting at least one operational parameter of the wireless device based on the at least one monitored characteristic, wherein adjusting the at least one operational parameter comprises increasing at least one of a transmission rate and a number of voice frames in datagrams generated by the wireless device.

2. The method of claim 1, wherein monitoring the at least one characteristic comprises monitoring at least one of a load on a communication channel used by the wireless device and a strength of a signal received from an access point serving the wireless device.

3. The method of claim 1, wherein increasing the transmission rate and the number of voice frames in datagrams generated by the wireless device comprises:

determining if a load on a communication channel used by the wireless device exceeds a threshold; and

increasing the transmission rate and the number of voice frames in datagrams generated by the wireless device when the load exceeds the threshold.

4. The method of claim 3, wherein increasing the transmission rate and the number of voice frames in the datagrams comprises:

identifying a size of the datagrams;

increasing the transmission rate before increase the number of voice frames when the datagram size exceeds a specified size; and

increasing the number of voice frames before increase the transmission rate when the datagram size falls below the specified size.

5. The method of claim 1, wherein adjusting the at least one operational parameter comprises:

determining if a strength of a signal received from an access point serving the wireless device falls below a threshold; and

at least one of decreasing a transmission rate and increasing a transmission power when the signal strength falls below the threshold.

6. The method of claim 1, wherein adjusting the at least one operational parameter comprises:

accessing a table, the table comprising a plurality of entries, each entry associated with a range of possible values for each of the at least one monitored characteristic, each entry also associated with a specified value for the at least one operational parameter;

selecting one of the entries using the at least one monitored characteristic; and

adjusting the at least one operational parameter when the specified value for the at least one operational parameter in the selected entry differs from a current value for the at least one operational parameter.

7. The method of claim 1, further comprising selecting a lowest transmission rate and a lowest transmission power for use by the wireless device before establishment of the communication session.

8. The method of claim 1, wherein the communication session comprises a telephone call.

9. Logic embodied on at least one computer readable medium and operable when executed on a processor, to:

establish a communication session at a wireless device;

monitor at least one characteristic associated with a communication session at a wireless device; and

adjust at least one operational parameter of the wireless device based on the at least one monitored characteristic, wherein the logic is operable to adjust the at least one operational parameter by increasing at least one of a transmission rate and a number of voice frames in datagrams generated by the wireless device.

10. The logic of claim 9, wherein the logic is operable to monitor the at least one characteristic by monitoring at least one of a load on a communication channel used by the wireless device and a strength of a signal received from an access point serving the wireless device.

11. The logic of claim 9, wherein the logic is operable to increase the transmission rate and the number of voice frames in datagrams generated by the wireless device by:

determining if a load on a communication channel used by the wireless device exceeds a threshold; and

increasing the transmission rate the number of voice frames in datagrams generated by the wireless device when the load exceeds the threshold.

12. The logic of claim 11, wherein the logic is operable to increase the number of voice frames in the datagrams by:

identifying a size of the datagrams;

increasing the transmission rate before increase the number of voice frames when the datagram size exceeds a specified size; and

increasing the number of voice frames before increase the transmission rate when the datagram size falls below the specified size.

13. The logic of claim 9, wherein the logic is operable to adjust the at least one operational parameter by:

determining if a strength of a signal received from an access point serving the wireless device falls below a threshold; and

at least one of decreasing a transmission rate and increasing a transmission power when the signal strength falls below the threshold.

14. The logic of claim 9, wherein the logic is operable to adjust the at least one operational parameter by:

accessing a table, the table comprising a plurality of entries, each entry associated with a range of possible values for each of the at least one monitored characteristic, each entry also associated with a specified value for the at least one operational parameter;

selecting one of the entries using the at least one monitored characteristic; and

adjusting the at least one operational parameter when the specified value for the at least one operational parameter in the selected entry differs from a current value for the at least one operational parameter.

15. The logic of claim 9, wherein the logic is further operable to select a lowest transmission rate and a lowest transmission power for use by the wireless device before establishment of the communication session.

16. An apparatus, comprising:

a processor operable to;

monitor at least one characteristic associated with a communication session at a wireless device; and

adjust at least one operational parameter of the wireless device based on the at least one monitored characteristic, wherein the processor is operable to adjust the at least one operational parameter by increasing at least one of a transmission rate and a number of voice frames in datagrams generated by the wireless device; and

a memory operable to store a plurality of thresholds used by the processor to adjust the at least one operational parameter.

17. The apparatus of claim 16, wherein the processor is operable to monitor the at least one characteristic by monitoring at least one of a load on a communication channel used by the wireless device and a strength of a signal received from an access point serving the wireless device.

18. The apparatus of claim 16, wherein the processor is operable to increase the transmission rate and the number of voice frames in datagrams generated by the wireless device by:

determining if a load on a communication channel used by the wireless device exceeds a threshold; and

increasing the transmission rate and the number of voice frames in datagrams generated by the wireless device when the load exceeds the threshold.

19. The apparatus of claim 18, wherein the processor is operable to increase the number of voice frames in the datagrams by:

identifying a size of the datagrams;

increasing the transmission rate before increase the number of voice frames when the datagram size exceeds a specified size; and

increasing the number of voice frames before increase the transmission rate when the datagram size falls below the specified size.

20. The apparatus of claim 16, wherein the processor is operable to adjust the at least one operational parameter by:

determining if a strength of a signal received from an access point serving the wireless device falls below at least one of the thresholds; and

at least one of decreasing a transmission rate and increasing a transmission power when the signal strength falls below the at least one threshold.

21. The apparatus of claim 16, wherein the plurality of thresholds form a table comprising a plurality of entries, each entry associated with a range of possible values for each of the at least one monitored characteristic, each range defined by a maximum threshold and a minimum threshold, each entry also associated with a specified value for the at least one operational parameter;

and

the processor is operable to adjust the at least one operational parameter by;

selecting one of the entries using the at least one monitored characteristic; and

adjusting the at least one operational parameter when the specified value for the at least one operational parameter in the selected entry differs from a current value for the at least one operational parameter.

22. The apparatus of claim 16, wherein the processor is further operable to select a lowest transmission rate and a lowest transmission power for use by the wireless device before establishment of the communication session.

23. The apparatus of claim 16, wherein the processor and memory form part of a wireless device.

24. The apparatus of claim 23, wherein the wireless device further comprises:

a display operable to present information to a user; and

a plurality of keys operable to by selected by the user.

25. A system, comprising:

means for establishing a communication session at a wireless device;

means for monitoring at least one characteristic associated with the communication session; and

means for adjusting at least one operational parameter of the wireless device based on the at least one monitored characteristic, wherein adjusting the at least one operational parameter comprises increasing at least one of a transmission rate and a number of voice frames in datagrams generated by the wireless device.