Partial radio block detection

• US 20080022183A1
• Filed: 06/29/2006
• Published: 01/24/2008
• Est. Priority Date: 06/29/2006
• Status: Active Grant

• Current Assignee: ST-Ericcson SA (Telefonaktiebolaget LM Ericsson)
• Original Assignee: ST-Ericcson SA (Telefonaktiebolaget LM Ericsson)
• Inventors: Arslan, Guner, Chen, Shaojie
• Granted Patent: US 8,085,718 B2
• Time in Patent Office: Days
• US Class Current: 714/758
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27

Abstract

A technique includes receiving a radio block from a transmission channel. The radio block includes first data and second data. The technique includes evaluating the first data to obtain a first evaluation result, evaluating the second data to obtain a second evaluation result and determining whether the radio block is a partial block based on the first and second evaluation results.

Claims

1. A method comprising:

receiving a radio block from a communication channel, the radio block comprising first data and second data;

evaluating the first data to obtain a first evaluation result;

evaluating the second data to obtain a second evaluation result; and

determining whether the radio block is a partial block based on the evaluations the first and second data.

2. The method of claim 1, wherein the first data is associated with a first speech frame and the second data is associated with another speech frame.

3. The method of claim 2, wherein the first data comprises a portion of the first speech frame after the application of speech and channel encoding.

4. The method of claim 1, wherein

the act of evaluating the first data comprises determining a first sum of the first data;

the act of evaluating the second data comprises determining a second sum of the second data; and

the act of determining comprises comparing the first and second sums to a combination of the first and second sums.

5. The method of claim 4, wherein the act of determining whether the radio block is a partial block comprises:

determining an average of the first and second sums; and

comparing the first and second sums to the average.

6. The method of claim 5, wherein the act of comparing the first and second sums to the average further comprises:

comparing the first and second sums to a scaled average.

7. The method of claim 1, further comprising:

selectively setting a flag to indicate whether the radio block is a partial block.

8. The method of claim 1, wherein the first and second data are interleaved at the bit level in the radio block.

9. An apparatus comprising:

a buffer to receive a radio block of incoming wireless data, the radio block comprising first data and second data; and

a channel decoder to determine whether the radio block is valid based on results obtained by independent evaluations of the first and second data.

10. The apparatus of claim 9, wherein the first data is associated with a first speech frame and the second data is associated with another speech frame.

11. The apparatus of claim 9, wherein the channel decoder is adapted to:

determine a first sum of the first data;

determine a second sum of the second data;

compare the first and second sums to a combination of the first and second sums; and

base the determination of whether the radio block is valid on the comparison.

12. The apparatus of claim 9, wherein the first and second data are interleaved at the bit level in the radio block.

13. A mobile station comprising:

a radio to receive a radio block of wireless data from a wireless communication channel, the radio block comprising first data associated with a first speech frame and second data associated with a second speech frame; and

a digital signal processor to determine whether the radio block is a partial block based on results obtained from independent evaluations of the first and second data.

14. The mobile station of claim 13, wherein the digital signal processor determines whether the radio block is a partial block based on a combination of a sum of the first data and a sum of the second data.

15. The mobile station of claim 14, wherein the digital signal processor is adapted to determine an average of the first and second sums and compare the first and second sums to the average to determine whether the radio block is a partial block.

17. An article comprising a storage medium accessible by a processor-based system and storing instructions that when executed cause the processor-based system to:

receive a radio block via a communication channel, the radio block comprising first data and second data; and

determine whether the radio block is a partial block based on results obtained from independent evaluations of the first and second data.

16. The mobile station of claim 17, wherein the digital signal processor is adapted to selectively set a flag to indicate when the radio block is a partial block.

18. The article of claim 17, the storage medium storing instructions that when executed cause the processor-based system to:

determine a first sum of the first data;

determine a second sum of the second data; and

determine whether the radio block is a partial block based on a combination of the first and second sums.

19. The article of claim 18, the storage medium storing instructions that when executed cause the processor-based system to:

determine an average of the first and second sums; and

compare the first and second sums to the average.