Frequency list updating for fast return to wireless network

• US 8,880,075 B2
• Filed: 11/16/2012
• Issued: 11/04/2014
• Est. Priority Date: 11/16/2012
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Yang, Ming, Chin, Tom, Shi, Guangming
• Primary Examiner(s): LE, DANH C
• Application Number:
  US13/679,286
• Publication Number:
  US 20140141780A1
• Time in Patent Office: 718 Days
• Field of Search: 455/436, 455/437, 455/438, 331/331, 370/331
• US Class Current: 455/436
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/30 by measured or perceived connection quality data

Abstract

A method of wireless communication receives a frequency list for fast return when in idle mode in a first radio access technology (RAT). The method updates the frequency list for fast return to the first RAT while in connected mode in the first RAT. The update is based on inter and intra frequency measurement control messages from each serving base station during mobility.

Claims

1. A method of wireless communication, comprising:

receiving a frequency list for pseudo fast return when in idle mode in a first radio access technology (RAT); and

updating the frequency list for pseudo fast return to the first RAT from a second RAT, the updating occurring when in connected mode in the first RAT based at least in part on inter and intra frequency measurement control messages from each serving base station of the first RAT.

2. The method of claim 1, further comprising:

releasing a call in the second RAT; and

returning to the first RAT based on the updated frequency list.

3. The method of claim 1, further comprising

receiving a network frequency list for fast return when releasing a call in the second RAT;

and

selecting a frequency from among the updated frequency list and the network frequency list for returning to the first RAT.

4. The method of claim 3, in which the selected frequency is from the updated frequency list.

5. A computer program product for wireless communication in a wireless network, comprising:

a non-transitory computer-readable medium having non-transitory program code recorded thereon, the program code comprising;

program code to receive a frequency list for pseudo fast return when in idle mode in a first radio access technology (RAT); and

program code to update the frequency list for pseudo fast return to the first RAT from a second RAT, the updating occurring when in connected mode in the first RAT based at least in part on inter and intra frequency measurement control messages from each serving base station of the first RAT.

6. The computer program product of claim 5, further comprising:

program code to release a call in the second RAT; and

program code to return to the first RAT based on the updated frequency list.

7. The computer program product of claim 5, further comprising

program code to receiving a network frequency list for fast return when releasing a call in the second RAT;

and

program code to selecting a frequency from among the updated frequency list and the network frequency list for returning to the first RAT.

8. The computer program product of claim 7, in which the selected frequency is from the updated frequency list.

9. A wireless communication apparatus, comprising:

at least one processor; and

a memory coupled to the at least one processor;

in which the at least one processor is configured;

to receive a frequency list for pseudo fast return when in idle mode in a first radio access technology (RAT); and

to update the frequency list for pseudo fast return to the first RAT from a second RAT, the updating occurring when in connected mode in the first RAT based at least in part on inter and intra frequency measurement control messages from each serving base station of the first RAT.

10. The wireless communication apparatus of claim 9, in which the at least one processor is further configured:

to release a call in the second RAT; and

to return to the first RAT based on the updated frequency list.

11. The wireless communication apparatus of claim 9, in which the at least one processor is further configured:

to receive a network frequency list for fast return when releasing a call in the second RAT; and

to select a frequency from among the updated frequency list and the network frequency list for returning to the first RAT.

12. The wireless communication apparatus of claim 11, in which the selected frequency is from the updated frequency list.

13. A wireless communication apparatus, comprising:

means for receiving a frequency list for pseudo fast return when in idle mode in a first radio access technology (RAT); and

means for updating the frequency list for pseudo fast return to the first RAT from a second RAT, the updating occurring when in connected mode in the first RAT based at least in part on inter and intra frequency measurement control messages from each serving base station of the first RAT.

14. The wireless communication apparatus of claim 13, further comprising:

means for release a call in the second RAT; and

means for returning to the first RAT based on the updated frequency list.

15. The wireless communication apparatus of claim 13, further comprising:

means for receiving a network frequency list for fast return when releasing a call in the second RAT; and

means for selecting a frequency from among the updated frequency list and the network frequency list for returning to the first RAT.

16. The wireless communication apparatus of claim 15, in which the selected frequency is from the updated frequency list.