Method for improving data throughput in wireless networks with schedulable interruptions

• US 20050245253A1
• Filed: 01/11/2005
• Published: 11/03/2005
• Est. Priority Date: 04/30/2004
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Joshi, Ashutosh, Khushu, Sanjeev
• Granted Patent: US 7,415,272 B2
• Time in Patent Office: Days
• US Class Current: 455/423
• CPC Class Codes: G01S 19/21 Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
• CPC Class Codes: G01S 19/24 Acquisition or tracking or demodulation of signals transmitted by the system synchronisation aspects of direct sequence spread spectrum modulation H04B1/7073
• CPC Class Codes: H04B 1/3805 with built-in auxiliary receivers
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 80/06 Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless transmission control protocol/Internet protocol [TCP/IP] or user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

Data throughput functionality is improved in a network which supports high data rate applications and additional applications within a single receiver. Guidelines for tuning the receiver at variable time periods to avoid timeouts and fill radio link holes which result from non-received/unrecognized data are provided in connection with an algorithm of operation.

Claims

1. A method for operating a mobile station comprising:

tuning said mobile station to a first carrier frequency pursuant to a radio link protocol;

monitoring data transactions pursuant to said radio link protocol involving said mobile station;

receiving at said mobile station, a request for information modulated on a second carrier frequency; and

tuning said mobile station to said second carrier frequency in connection with a plurality of time periods measured during said request for information and during said data monitoring.

2. The method of claim 1 wherein said data transactions involve digital information transmitted on spread spectrum signals modulated on said first carrier frequency.

3. The method of claim 1 wherein said data transactions involve digital information transmitted on spread spectrum signals modulated according to a method of code division multiple access on said first carrier frequency.

4. The method of claim 3 wherein said data transactions occur on a supplemental channel.

5. The method of claim 1 wherein said data transactions involve digital information modulated according to a method of time division multiple access on said first carrier frequency.

6. The method of claim 1 wherein said time periods measured during said request for information and during said data monitoring are selected from the group of time periods consisting of:

a lapse of time between said request for information on said second carrier frequency and a previous request for information on said second carrier frequency;

a period of time during which there is an absence of data activity involving said mobile station pursuant to said radio link protocol;

a period of time elapsed since receiving said request and tuning said mobile station to said second carrier frequency; and

a combination thereof.

7. The method of claim 6 wherein said mobile station is tuned to said second carrier frequency when said lapse of time between said request for information on said second carrier frequency and a previous request for information on said second carrier frequency is greater than a first threshold time period.

8. The method of claim 7 wherein said first threshold time period is no greater than five seconds.

9. The method of claim 6 wherein said mobile station is tuned to said second carrier frequency when said period of time during which there is an absence of data exceeds a second threshold time period.

10. The method of claim 9 wherein said second threshold time period is about 300 milliseconds.

11. The method of claim 6 wherein said mobile station is tuned to said second carrier frequency when said period of time elapsed since receiving a request for information modulated on said second carrier frequency and the tuning of said mobile station to said second carrier frequency is greater than a third threshold time period.

12. The method of claim 11 wherein said third threshold time period between about 1.0 and 1.5 seconds.

13. The method of claim 6 wherein said second carrier frequency is a carrier frequency on which a global positioning signal is modulated.

14. The method of claim 13 wherein said mobile station is tuned to said second carrier frequency when said lapse of time between said request for information on said second carrier frequency and a previous request for information on said second carrier frequency is greater than a first threshold time period.

15. The method of claim 13 wherein said mobile station is tuned to said second carrier frequency when said period of time during which there is an absence of data exceeds a second threshold time period.

16. The method of claim 13 wherein said mobile station is tuned to said second carrier frequency when said period of time elapsed since receiving a request for information modulated on said second carrier frequency and the tuning of said mobile station to said second carrier frequency is greater than a third threshold time period.

17. A mobile station comprising:

an antenna;

a radio frequency section for providing a communications link to a communications network through said antenna; and

a processor programmed to tune said mobile station to a first carrier frequency pursuant to a radio link protocol, monitor data transactions pursuant to said radio link protocol, receive a request for information modulated on a second carrier frequency and tune said mobile station to said second carrier frequency in connection with a plurality of time periods measured by said processor during said request for information and during said data monitoring.

18. The mobile station of claim 17 wherein said data transactions involve digital information transmitted on spread spectrum signals modulated according to a method of code division multiple access on said first carrier frequency.

19. The mobile station of claim 18 wherein said data transactions occur on a supplemental channel.

20. The mobile station of claim 17 wherein said second carrier frequency is a carrier frequency on which a global positioning signal is modulated.

21. The mobile station of claim 17 wherein said data transactions involve digital information modulated according to a method of time division multiple access on said first carrier frequency.

22. A communication system comprising:

a base station and a mobile station, said mobile station including an antenna, a radio frequency section for providing a network communication link between said mobile station and said base station via said antenna, and a processor programmed to tune said mobile station to a first carrier frequency pursuant to a radio link protocol, monitor data transactions pursuant to said radio link protocol, receive a request for information modulated on a second carrier frequency and tune said mobile station to said second carrier frequency in connection with a plurality of time periods measured by said processor during said request for information and during said data monitoring.

23. The communication system of claim 22 wherein said data transactions involve digital information transmitted on spread spectrum signals modulated according to a method of code division multiple access on said first carrier frequency.

24. The communication system of claim 23 wherein said data transactions occur on a supplemental channel.

25. The communication system of claim 22 wherein said second carrier frequency is a carrier frequency on which a global positioning signal is modulated.

26. The communication system of claim 22 wherein said data transactions involve digital information modulated according to a method of time division multiple access on said first carrier frequency.