CHANNEL INTERLEAVING STRUCTURE FOR A WIRELESS COMMUNICATION SYSTEM

• US 20080316977A1
• Filed: 06/24/2008
• Published: 12/25/2008
• Est. Priority Date: 06/25/2007
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Malladi, Durga Prasad
• Granted Patent: US 8,576,807 B2
• Time in Patent Office: Days
• US Class Current: 370/335
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0052 Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/04 using frequency diversity

Abstract

Systems and methodologies are described that facilitate employing a hybrid transmission structure in a wireless communication environment. Each transport block (e.g., MAC PDU) can be split into multiple code blocks. Moreover, each of the code blocks can be further divided into two or more code block segments. Further, code block segments from a given code block can be transmitted over a channel during disparate time slots of a subframe. Also, within a given subframe, code block segments corresponding to differing code blocks can be transmitted sequentially in time. Utilization of the foregoing can enable employment of a pipelined decoder structure at a receiver while allowing for optimization of time/frequency diversity.

Claims

1. A method that facilitates employing a hybrid transmission structure in a wireless communication environment, comprising:

splitting a transport block into a plurality of code blocks;

dividing each of the plurality of code blocks into two or more respective code block segments;

transmitting a respective first code block segment associated with each of the plurality of code blocks in a first time slot of a subframe; and

transmitting a respective second code block segment associated with each of the plurality of code blocks in a second time slot of the subframe.

2. The method of claim 1, wherein the transport block is a Media Access Control (MAC) Protocol Data Unit (PDU) that is provided to a physical layer for encoding.

3. The method of claim 1, further comprising:

splitting the transport block into four code blocks;

dividing each of the four code blocks into two code block segments;

transmitting a first four code block segments during the first time slot of the subframe, the first four code block segments include a first one of the code block segments for each of the four code blocks; and

transmitting a second four code block segments during the second time slot of the subframe, the second four code block segments include a second one of the code block segments for each of the four code blocks.

4. The method of claim 1, further comprising:

transmitting the respective first code block segments sequentially in time during the first time slot; and

transmitting the respective second code block segments sequentially in time during the second time slot.

5. The method of claim 1, further comprising transmitting each of the respective first code block segments and each of the second code block segments at staggered times to enable a decoder at a receiver to effectuate pipelined decoding.

6. The method of claim 1, further comprising transmitting the two or more respective code block segments corresponding to each of the plurality of code blocks in disparate time slots of the subframe.

7. The method of claim 1, further comprising transmitting each of the respective first code block segments and each of the respective second code block segments using a full set of frequencies of a resource block.

8. A wireless communications apparatus, comprising:

a memory that retains instructions related to transmitting a first set of code block segments corresponding to a set of code blocks, the first set of code block segments being transmitted sequentially in time during a first time slot of a subframe using a set of frequencies associated with a resource block, and transmitting a second set of code block segments corresponding to the set of code blocks, the second set of code block segments being transmitted sequentially in time during a second time slot of the subframe using the set of frequencies associated with the resource block; and

a processor, coupled to the memory, configured to execute the instructions retained in the memory.

9. The wireless communications apparatus of claim 8, wherein the memory further retains instructions related to splitting a transport block to form the set of code blocks, and dividing each code block in the set of code blocks into two code block segments.

10. The wireless communications apparatus of claim 9, wherein the transport block is a Media Access Control (MAC) Protocol Data Unit (PDU) that is provided to a physical layer for encoding.

11. The wireless communications apparatus of claim 8, wherein the memory further retains instructions related to transmitting each code block segment in the first set of code block segments and the second set of code block segments at disparate times to enable a decoder at a receiver to effectuate pipelined decoding.

12. The wireless communications apparatus of claim 8, wherein the set of frequencies associated with the resource block includes all frequencies of the resource block.

13. A wireless communications apparatus that enables utilizing a hybrid transmission structure in a wireless communication environment, comprising:

means for splitting each code block associated, with a transport block into two respective code block segments; and

means for transmitting a first set of code block segments that includes one of the respective code block segments for each of the code blocks during a first time slot of a subframe and a second set of code block segments that includes the other of the respective code block segments for each of the code blocks during a second time slot of the subframe based upon a hybrid transmission structure.

14. The wireless communications apparatus of claim 13, further comprising means for dividing the transport block into the code blocks.

15. The wireless communications apparatus of claim 13, wherein the transport block is a Media Access Control (MAC) Protocol Data Unit (PDU) that is provided to a physical layer for encoding.

16. The wireless communications apparatus of claim 13, wherein the first set of code block segments are transmitted sequentially in time during the first time slot and the second set of code block segments are transmitted sequentially in time during the second time slot.

17. The wireless communications apparatus of claim 13, wherein each code block segment in the first set of code block segments and the second set of code block segments is transmitted at a unique, respective time to enable a decoder at a receiving wireless communication apparatus to effectuate pipelined decoding.

18. The wireless communications apparatus of claim 13, wherein each code block segment in the first set of code block segments and the second set of code block segments is transmitted using a full set of frequencies of a resource block.

19. A computer program product, comprising:

a computer-readable medium comprising;

code for splitting a transport block into a plurality of code blocks;

code for dividing each of the plurality of code blocks into two or more respective code block segments;

code for transmitting a respective first code block segment associated with each of the plurality of code blocks in a first time slot of a subframe; and

code for transmitting a respective second code block segment associated with each of the plurality of code blocks in a second time slot of the subframe.

20. The computer program product of claim 19, wherein the transport block is a Media Access Control (MAC) Protocol Data Unit (PDU) that is provided to a physical layer for encoding.

21. The computer program product of claim 19, the computer-readable medium further comprising:

code for splitting the transport block into four code blocks;

code for dividing each of the four code blocks into two code block segments;

code for transmitting a first four code block segments during the first time slot of the subframe, the first four code block segments include a first one of the code block segments for each of the four code blocks; and

code for transmitting a second four code block segments during the second time slot of the subframe, the second four code block segments include a second one of the code block segments for each of the four code blocks.

22. The computer program product of claim 19, the computer-readable medium further comprising:

code for transmitting the respective first code block segments sequentially in time during the first time slot; and

code for transmitting the respective second code block segments sequentially in time during the second time slot.

23. The computer program product of claim 19, the computer-readable medium further comprising code for transmitting each of the respective first code block segments and each of the second code block segments at staggered times to enable a decoder at a receiver to effectuate pipelined decoding.

24. The computer program product of claim 19, the computer-readable medium further comprising code for transmitting the two or more respective code block segments corresponding to each of the plurality of code blocks in disparate time slots of the subframe.

25. The computer program product of claim 19, the computer-readable medium further comprising code for transmitting each of the respective first code block segments and each of the respective second code block segments using a full set of frequencies of a resource block.

26. In a wireless communications system, an apparatus comprising:

a processor configured to;

divide a transport block into code blocks;

split each of the code blocks into two respective code block segments; and

transmit a first set of code block segments that includes one of the respective code block segments for each of the code blocks sequentially during a first time slot of a subframe and a second set of code block segments that includes the other of the respective code block segments for each of the code blocks sequentially during a second time slot of the subframe based upon a hybrid transmission structure.