SYSTEM AND METHOD FOR DROPPING AND ADDING AN AIR INTERFACE IN A WIRELESS COMMUNICATION SYSTEM

• US 20100291966A1
• Filed: 05/06/2010
• Published: 11/18/2010
• Est. Priority Date: 05/14/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: George, Brian M., Shahidi, Reza, Hu, Jun, Lin, Yu-Chuan, Mahajan, Amit
• Granted Patent: US 9,313,791 B2
• Time in Patent Office: Days
• US Class Current: 455/552.1
• CPC Class Codes: H04L 5/0026 Division using four or more dimensions
• CPC Class Codes: H04L 5/0028 Variable division signaling therefor H04L5/0092
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0058 Allocation criteria
• CPC Class Codes: H04W 52/346 distributing total power among users or channels
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A device and method for dropping an air interface is disclosed. In one embodiment, the method comprises communicating over a first air interface and a second air interface, determining an operational parameter based at least in part on a characteristic of the first air interface, and dropping the second air interface based at least in part on the operational parameter. A device and method for adding an air interface is also disclosed. In one embodiment, the system comprises a processor configured to drop one of a plurality of concurrently established air interfaces and to subsequently determine that at least one predetermined criteria is met before attempting to add the air interface.

Claims

1. A method of dropping an air interface, the method comprising:

concurrently communicating over a first air interface and a second air interface;

determining an operational parameter based at least in part on a characteristic of the first air interface; and

dropping the second air interface based at least in part on the operational parameter.

2. The method of claim 1, wherein the first air interface supports voice traffic and the second air interface supports data traffic.

3. The method of claim 1, wherein the first air interface is a 1×

interface and the second air interface is a DO interface.

4. The method of claim 1, wherein communicating over a first air interface and a second air interface comprises communicating over a first air interface at a first frequency and communicating over a second air interface at a second frequency.

5. The method of claim 1, wherein determining an operational parameter comprises determining an operational parameter based at least in part on a receive power of the first air interface, a performance measure of the first air interface, a frequency of the first air interface.

6. The method of claim 5, wherein determining an operational parameter comprises determining a power imbalance based on a receive power of the first air interface and a receive power of the second air interface.

7. The method of claim 5, wherein determining an operational parameter comprises determining a packet error rate of the first air interface.

8. The method of claim 5, wherein determining an operational parameter comprises determining the presence or absence of an RF interferer at a frequency between a first frequency of the first air interface and a second frequency of the second air interface.

9. The method of claim 1, wherein dropping the air interface comprises switching to a narrowband mode.

10. A device for dropping an air interface, the system comprising:

a transceiver configured to concurrently communicate over a first air interface and a second air interface; and

a processor configured to drop the second air interface based at least in part on an operational parameter, wherein the operational parameter is based at least in part on a characteristic of the first air interface.

11. The device of claim 10, wherein the transceiver comprises a first transceiver configured to communicate over the first air interface and a second transceiver configured to communicate over the second air interface.

12. The device of claim 10, wherein the first air interface supports voice traffic and the second air interface supports data traffic.

13. The device of claim 10, wherein the first air interface is a 1×

interface and the second air interface is a DO interface.

14. The device of claim 10, wherein the transceiver is configured to communicate over the first air interface at a first frequency and communicate over the second air interface at a second frequency.

15. The device of claim 10, wherein the processor is configured to determine an operational parameter based at least in part on a receive power of the first air interface, a performance measure of the first air interface, a frequency of the first air interface.

16. The device of claim 15, wherein the processor is configured to determine an operational parameter based on a power imbalance based on a receive power of the first air interface and a receive power of the second air interface.

17. The device of claim 15, wherein the processor is configured to determine an operational parameter based on a packet error rate of the first air interface.

18. The device of claim 15, wherein the processor is configured to determine an operational parameter based on the presence or absence of an RF interferer at a frequency between a first frequency of the first air interface and a second frequency of the second air interface.

19. The device of claim 10, wherein the processor is further configured to switch to a narrowband mode.

20. A device for dropping an air interface, the system comprising:

means for concurrently communicating over a first air interface and a second air interface;

means for determining an operational parameter based at least in part on a characteristic of the first air interface; and

means for dropping the second air interface based at least in part on the operational parameter.

21. A computer chip encoded with instructions for executing a method of dropping an air interface, the method comprising:

concurrently communicating over a first air interface and a second air interface;

determining an operational parameter based at least in part on a characteristic of the first air interface; and

dropping the second air interface based at least in part on the operational parameter.

22. A method of adding an air interface, the method comprising:

dropping one of a plurality of concurrently established air interfaces;

determining, after dropping the air interface, that at least one predetermined criterion is met; and

adding the air interface after the determination.

23. The method of claim 22, wherein dropping an air interface comprises dropping a second air interface based at least in part on an operational parameter, wherein the operational parameter is based at least in part on a characteristic of a first air interface.

24. The method of claim 22, wherein determining that the at least one predetermined criterion is met comprises determining that another air interface is not in a traffic state.

25. The method of claim 22, wherein determining that the at least one predetermined criterion is met comprises determining that a predetermined time has passed since dropping the air interface.

26. The method of claim 22, wherein determining that the at least one predetermined criterion is met comprises determining that a channel measurement indicates a good channel.

27. A device for adding an air interface, the system comprising a processor configured to drop one of a plurality of concurrently established air interfaces and to subsequently determine that at least one predetermined criteria is met before attempting to add the air interface.

28. The device of claim 27 further comprising a transceiver configured to communicate over the added air interface.

29. The device of claim 27, wherein the processor is configured to drop the air interfaces based at least in part on an operational parameter, wherein the operational parameter is based at least in part on a characteristic of the air interface.

30. The device of claim 27, wherein the processor is configured to determine that another air interface is not in a traffic state.

31. The device of claim 27, wherein the processor is configured to determine that a predetermined time has passed since dropping the air interface.

32. The device of claim 27, wherein the processor is configured to determine that a channel measurement indicates a good channel.

33. A device for adding an air interface, the system comprising:

means for dropping one of a plurality of concurrently established air interfaces;

means for determining, after dropping the air interface, that at least one predetermined criterion is met; and

means for adding the air interface after the determination.

34. A computer chip encoded with instructions for executing a method of adding an air interface, the method comprising:

dropping one of a plurality of concurrently established air interfaces;

determining, after dropping the air interface, that at least one predetermined criterion is met; and

adding the air interface after the determination.