Decoding operations in normal transmission mode
View Patent ↗Various decoders, methods, systems, and devices are provided that selectively employ a decoding operation as a function of the size of a received data packet. In at least some embodiments, a first decoding operation is performed on data packets within a first size range. A second decoding operation(s), different from the first, is (are) performed on data packets within a second size range. In at least some embodiments, the first decoding operation is a sliding-window decoding operation and the second decoding operation is one other than a sliding-window decoding operation.
1. A decoder comprising:
decoding logic configured to implement a method comprising:
receiving encoded data packets;
determining sizes of the encoded data packets; and
using a first decoding operation responsive to determining that the size of one of the encoded data packets is within a first size range, the first decoding operation implementing a first decoding algorithm; and
using a second decoding operation responsive to determining that the size of another of the encoded data packets is within a second size range, the second decoding operation implementing a second decoding algorithm, wherein the second decoding algorithm is different from the first decoding algorithm.
2. The decoder of claim 1 , wherein the size is byte length of the encoded data packet.
3. The decoder of claim 1 , wherein the first decoding operation is a sliding-window decoding operation.
4. The decoder of claim 1 , wherein using the second decoding operation mitigates performance degradation associated with using the first decoding operation for encoded data packets within the second size range.
5. The decoder of claim 1 , wherein the method implemented by the decoding logic further comprises setting size ranges.
6. The decoder of claim 4 , wherein the second size range is smaller than the first size range and the second decoding operation is not a sliding-window decoding operation.
7. The decoder of claim 1 , wherein the encoded data packets are compliant with the IEEE 802.16d/e protocol.
8. The decoder of claim 1 , wherein said first and second decoding operations comprise Convolutional Turbo Code decoding operations.
9. A hard disk drive system including the decoder of claim 1 .
10. A digital versatile disc drive system including the decoder of claim 1 .
11. A high definition television system including the decoder of claim 1 .
12. A vehicle communication system including the decoder of claim 1 .
13. A cellular phone system including the decoder of claim 1 .
14. A set-top box system including the decoder of claim 1 .
15. A media player system including the decoder of claim 1 .
16. A Voice over Internet Protocol (VoIP) phone system including the decoder of claim 1 .
17. A method comprising:
receiving encoded data packets;
determining sizes of the encoded data packets; and
using a first decoding operation responsive to determining that the size of one of the encoded data packets is within a first size range, the first decoding operation implementing a first decoding algorithm; and
using a second decoding operation responsive to determining that the size of another of the encoded data packets is within a second size range, the second decoding operation implementing a second decoding algorithm, wherein the second decoding algorithm is different from the first decoding algorithm.
18. The method of claim 17 , wherein the size is byte length of the encoded data packet.
19. The method of claim 17 , wherein the first decoding operation is a sliding-window decoding operation.
20. The method of claim 17 , wherein the second decoding operation is not a sliding-window decoding operation.
21. The method of claim 17 further comprising setting size ranges.
22. The method of claim 17 , wherein the first and second size ranges are re-configurable.
23. The method of claim 17 , wherein the encoded data packets are compliant with the IEEE 802.16d/e protocol.
24. The method of claim 17 , wherein said first and second decoding operations comprise Convolutional Turbo Code decoding operations.