Electronic device for acquisition of a dummy paging message

• US 7,953,037 B2
• Filed: 09/14/2007
• Issued: 05/31/2011
• Est. Priority Date: 09/14/2007
• Status: Expired due to Fees

• Current Assignee: MediaTek, Inc.
• Original Assignee: MediaTek, Inc.
• Inventors: Huang, Ho-Chi, Lin, Shin-Yi, Kuo, Chun-Ming
• Primary Examiner(s): Pham; Chi H
• Assistant Examiner(s): LOPATA, ROBERT J
• Application Number:
  US11/855,269
• Publication Number:
  US 20090075679A1
• Time in Patent Office: 1,355 Days
• Field of Search: 370/310, 370/328, 455/343.2, 455/458
• US Class Current: 370/328
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The invention provides an electronic device for acquisition of a dummy paging message. In an embodiment, the electronic device comprises a dummy pattern generator, a receiver, and a paging channel handler. The dummy pattern generator provides a first artificial pattern according to a previously received result corresponding to a dummy paging message. The receiver receives a first burst for a paging message. The paging channel handler controls the receiver to recover a first data content for the paging message according to the first burst and the first artificial pattern, determines whether the first data content represents a dummy paging message, and directs the receiver not to activate to receive remaining bursts for the paging message when the first data content represents a dummy paging message. The dummy paging message is employed for synchronization between a mobile station comprising the electronic device, and a serving base station.

Claims

1. An electronic device for acquisition of a dummy paging message, comprising:

a dummy pattern generator, providing a first artificial pattern according to a previously received result corresponding to a dummy paging message;

a receiver, receiving a first burst for a paging message; and

a paging channel handler, controlling the receiver to recover a first data content for the paging message by decoding a joint of the first burst and the first artificial pattern, determining whether the first data content represents a dummy paging message, and directing the receiver not to activate to receive remaining bursts for the paging message when the first data content represents a dummy paging message;

wherein the dummy paging message is employed for synchronization between a mobile station comprising the electronic device, and a serving base station.

2. The electronic device as claimed in claim 1, wherein the dummy pattern generator further provides a second artificial pattern according to the previously received result, and the paging channel handler controls the receiver to recover the first data content according to the first burst, the first and second artificial patterns.

3. The electronic device as claimed in claim 1, wherein whether the first data content is a dummy paging message is determined by verifying cyclic redundancy check (CRC) bits of the first data content.

4. The electronic device as claimed in claim 1, wherein the previously received result is raw data of the dummy paging message received by a radio frequency module of the receiver, equalizer output data, de-interleaved data, channel-decoded data bits, or re-encoded data.

5. The electronic device as claimed in claim 1, wherein when the first content does not represent a dummy paging message, the receiver receives a second burst for the paging message, and the paging channel handler directs the receiver to recover a second data content according to the first burst and the second burst.

6. The electronic device as claimed in claim 5, wherein, after the second data content passes cyclic redundancy check (CRC) validation, the paging channel handler directs the receiver not to activate to receive remaining bursts for the paging message.

7. The electronic device as claimed in claim 5, wherein, after the second data content does not pass cyclic redundancy check (CRC) validation, the receiver receives a third burst of the paging message, and the paging channel handler directs the receiver to recover a third data content for the paging message according to the first burst, the second burst, and the third burst.

8. The electronic device as claimed in claim 7, wherein, after the third data content passes CRC validation, the paging channel handler directs the receiver not to activate to receive remaining bursts for the paging message.

9. An electronic device for acquisition of a paging message from a serving base station, and measuring strengths of radio frequency signals from a plurality of neighboring base stations, comprising:

a radio frequency module, receiving a burst for a paging message, switching channels, and receiving the radio frequency signals from the neighboring base stations via the switched channels; and

a baseband processing module, acquiring the paging message according to the burst, and measuring strengths of the radio frequency signals;

wherein the reception of the burst, the reception of the radio frequency signals, the acquisition of the paging message, and the measurement of the strengths are completely performed in one frame duration, and the strengths of the radio frequency signals are employed to determined signal quality.

10. The electronic device as claimed in claim 9, wherein the radio frequency module is disabled after the reception of the burst and the radio frequency signals, and the baseband processing module is disabled after the acquisition of the paging message and the measurement of the strengths.

11. The electronic device as claimed in claim 9, wherein the quantity of the radio frequency signals measured by the baseband processing module in one frame duration is seven or more.

12. The electronic device as claimed in claim 9, wherein the electronic device further comprises a dummy pattern generator providing an artificial pattern according to a previously received dummy paging message, and the baseband processing module recovers the dummy paging message according to both the burst and the artificial pattern.

13. The electronic device as claimed in claim 12, wherein the frame duration is substantially 4.615 ms (milliseconds).

14. A method for acquisition of a dummy paging message for a mobile station, comprising:

receiving a first burst for a paging message;

providing a first artificial pattern according to a previously received result corresponding to a dummy paging message;

recovering a first data content for the paging message by decoding a joint of the first burst and the first artificial pattern;

determining whether the first data content represents a dummy paging message; and

directing a receiver of the mobile station not to activate to receive remaining bursts for the paging message when the first data content represents a dummy paging message;

wherein the dummy paging message is employed for synchronization between the mobile station and a serving base station.

15. The method as claimed in claim 14, wherein the method further comprises:

providing a second artificial pattern according to the previously received result; and

acquiring the first data content according to the first burst, the first and second artificial patterns.

16. The method as claimed in claim 15, wherein the method further comprises:

providing a third artificial pattern according to the previously received result; and

acquiring the first data content according to the first burst, the first, second and third artificial patterns.

17. The method as claimed in claim 14, wherein the previously received result is raw data of the dummy paging message, de-interleaved data, or channel-decoded data bits.

18. The method as claimed in claim 14, wherein when the first data content does not represent a dummy paging message, the method further comprises:

receiving a second burst for the paging message; and

recovering a second data content according to the first burst and the second burst.

19. The method as claimed in claim 18, wherein the method further comprises directing the receiver not to activate to receive remaining bursts for the paging message when the second data content passes cyclic redundancy check (CRC) validation and represents a dummy paging message.

20. The method as claimed in claim 19, wherein, when the second data content passes CRC validation and represents a significant paging message, the method further comprises:

determining whether a mobile ID of the second data content is a mobile ID of the mobile station;

entering a sleep mode during the remaining page duration when the mobile ID of the second data content is not the mobile ID of the mobile station; and

entering a wakeup mode when the mobile ID of the second data content is not the mobile ID of the mobile station to perform a relevant operation in response to the second data content.