METHOD AND APPARATUS FOR PUNCTURING DATA REGIONS FOR SIGNALS TO MINIMIZE DATA LOSS

• US 20110252139A1
• Filed: 10/04/2010
• Published: 10/13/2011
• Est. Priority Date: 10/05/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Gorokhov, Alexei Yurievitch, Montojo, Juan, Farajidana, Amir, Bhattad, Kapil
• Granted Patent: US 9,444,589 B2
• Time in Patent Office: Days
• US Class Current: 709/226
• CPC Class Codes: H04L 1/0013 Rate matching, e.g. puncturing or repetition of code symbols
• CPC Class Codes: H04L 1/0068 by puncturing
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority

Abstract

Methods and apparatuses are provided that facilitate puncturing codeblocks in resource blocks for muting or transmitting signals of a disparate technology such that the puncturing similarly impacts the codeblocks. Codeblocks can be mapped in order across frequency in a given data symbol before moving to a next data symbol. In this regard, utilizing data resource elements substantially evenly spaced across frequency and across data symbols in a data resource block for transmitting signals of the disparate technology can substantially equalize impact of the puncturing to related codeblocks. In addition, resources can be allocated to legacy devices, devices with bandwidth, data rate, or quality of service requirements, devices of a certain rank or geometry, etc., based at least in part on the puncturing. Moreover, a modulation and coding scheme can be selected for generating codeblocks based at least in part on the puncturing and its effect on performance.

Claims

1. A method for wireless communication, comprising:

determining a punctured set of a plurality of data resource elements in one or more data resource blocks for muting or transmitting signals of a disparate technology; and

allocating a portion of the plurality of data resource elements to one or more devices based at least in part on the punctured set of the plurality of data resource elements.

2. The method of claim 1, further comprising selecting a modulation and coding scheme (MCS) for encoding data over the portion of the plurality of data resource elements based at least in part on the punctured set of the plurality of data resource elements.

3. The method of claim 2, further comprising computing an expected performance of one or more codeblocks mapped over the plurality of data resource elements, wherein the selecting the MCS is based further at least in part on the expected performance.

4. The method of claim 3, further comprising determining a codeblock of the one or more codeblocks that includes a largest portion of the punctured set of the plurality of data resource elements, wherein the computing the expected performance includes computing an expected performance of the codeblock.

5. The method of claim 3, wherein the computing the expected performance is further based at least in part on determining an expected error rate of the one or more codeblocks using the MCS.

6. The method of claim 1, wherein the allocating the plurality of data resource elements is based further at least in part on a rank, a quality of service, a geometry, or a selected modulation and coding scheme (MCS) of the one or more devices.

7. The method of claim 1, wherein the allocating the plurality of data resource elements is based further at least in part on whether the one or more devices can process channel state information reference signals (CSI-RS) of the disparate technology.

8. The method of claim 1, wherein the punctured set of the plurality of data resource elements are distributed substantially evenly across the plurality of data resource elements.

9. The method of claim 1, further comprising selecting the punctured set of the plurality of data resource elements based at least in part on a modulation and coding scheme (MCS) selected for encoding data related to the one or more devices.

10. The method of claim 9, wherein the selecting is performed dynamically for a given period of time.

11. An apparatus for wireless communication, comprising:

at least one processor configured to;

determine a punctured set of a plurality of data resource elements in one or more data resource blocks for muting or transmitting signals of a disparate technology; and

allocate a portion of the plurality of data resource elements to one or more devices based at least in part on the punctured set of the plurality of data resource elements.

12. The apparatus of claim 11, wherein the at least one processor is further configured to select a modulation and coding scheme (MCS) for encoding data over the portion of the plurality of data resource elements based at least in part on the punctured set of the plurality of data resource elements.

13. The apparatus of claim 12, wherein the at least one processor is further configured to determine an expected performance of one or more codeblocks mapped over the plurality of data resource elements, and the at least one processor selects the MCS based further at least in part on the expected performance.

14. The apparatus of claim 13, wherein the at least one processor is further configured to determine a codeblock of the one or more codeblocks that includes a largest portion of the punctured set of the plurality of data resource elements, and the at least one processor determines the expected performance by determining at least an expected performance of the codeblock.

15. The apparatus of claim 13, wherein the at least one processor determines the expected performance further based at least in part on determining an expected error rate of the one or more codeblocks using the MCS.

16. The apparatus of claim 11, wherein the at least one processor allocates the plurality of data resource elements based further at least in part on a rank, a quality of service, a geometry, or a selected modulation and coding scheme (MCS) of the one or more devices.

17. The apparatus of claim 11, wherein the at least one processor allocates the plurality of data resource elements based further at least in part on whether the one or more devices can process channel state information reference signals (CSI-RS) of the disparate technology.

18. The apparatus of claim 11, wherein the punctured set of the plurality of data resource elements are distributed substantially evenly across the plurality of data resource elements.

19. The apparatus of claim 11, wherein the at least one processor is further configured to select the punctured set of the plurality of data resource elements based at least in part on a modulation and coding scheme (MCS) selected for encoding data related to the one or more devices.

20. The apparatus of claim 19, wherein the at least one processor dynamically selects the punctured set of the plurality of data resource elements.

21. An apparatus for wireless communication, comprising:

means for determining a punctured set of a plurality of data resource elements in one or more data resource blocks for muting or transmitting signals of a disparate technology; and

means for allocating a portion of the plurality of data resource elements to one or more devices based at least in part on the punctured set of the plurality of data resource elements.

22. The apparatus of claim 21, further comprising means for selecting a modulation and coding scheme (MCS) for encoding data over the portion of the plurality of data resource elements based at least in part on the punctured set of the plurality of data resource elements.

23. The apparatus of claim 22, further comprising means for computing an expected performance of one or more codeblocks mapped over the plurality of data resource elements, wherein the means for selecting selects the MCS based further at least in part on the expected performance.

24. The apparatus of claim 23, further comprising means for determining a codeblock of the one or more codeblocks that includes a largest portion of the punctured set of the plurality of data resource elements, wherein the means for computing computes the expected performance of the codeblock.

25. The apparatus of claim 23, wherein the means for computing computes the expected performance further based at least in part on determining an expected error rate of the one or more codeblocks using the MCS.

26. The apparatus of claim 21, wherein the means for allocating allocates the plurality of data resource elements based further at least in part on a rank, a quality of service, a geometry, or a selected modulation and coding scheme (MCS) of the one or more devices.

27. The apparatus of claim 21, wherein the means for allocating allocates the plurality of data resource elements based further at least in part on whether the one or more devices can process channel state information reference signals (CSI-RS) of the disparate technology.

28. The apparatus of claim 21, wherein the punctured set of the plurality of data resource elements are distributed substantially evenly across the plurality of data resources.

29. The apparatus of claim 21, wherein the means for determining further selects the punctured set of the plurality of data resource elements based at least in part on a modulation and coding scheme (MCS) selected for encoding data related to the one or more devices.

30. The apparatus of claim 29, wherein the means for determining dynamically selects the punctured set of the plurality of data resource elements in a given time period.

31. A computer program product, comprising:

a computer-readable storage medium, comprising;

instructions for causing at least one computer to determine a punctured set of a plurality of data resource elements in one or more data resource blocks for muting or transmitting signals of a disparate technology; and

instructions for causing the at least one computer to allocate a portion of the plurality of data resource elements to one or more devices based at least in part on the punctured set of the plurality of data resource elements.

32. The computer program product of claim 31, wherein the computer-readable medium further comprises instructions for causing the at least one computer to select a modulation and coding scheme (MCS) for encoding data over the portion of the plurality of data resource elements based at least in part on the punctured set of the plurality of data resource elements.

33. The computer program product of claim 32, wherein the computer-readable medium further comprises instructions for causing the at least one computer to determine an expected performance of one or more codeblocks mapped over the plurality of data resource elements, and the instructions for causing the at least one computer to select selects the MCS based further at least in part on the expected performance.

34. The computer program product of claim 33, wherein the computer-readable medium further comprises instructions for causing the at least one computer to determine a codeblock of the one or more codeblocks that includes a largest portion of the punctured set of the plurality of data resource elements, and the instructions for causing the at least one computer to determine determines the expected performance by determining at least an expected performance of the codeblock.

35. The computer program product of claim 33, wherein the instructions for causing the at least one computer to determine determines the expected performance further based at least in part on determining an expected error rate of the one or more codeblocks using the MCS.

36. The computer program product of claim 31, wherein the instructions for causing the at least one computer to allocate allocates the plurality of data resource elements based further at least in part on a rank, a quality of service, a geometry, or a selected modulation and coding scheme (MCS) of the one or more devices.

37. The computer program product of claim 31, wherein the instructions for causing the at least one computer to allocate allocates the plurality of data resource elements based further at least in part on whether the one or more devices can process channel state information reference signal (CSI-RS) of the disparate technology.

38. The computer program product of claim 31, wherein the punctured set of the plurality of data resource elements are distributed substantially evenly across the plurality of data resources.

39. The computer program product of claim 31, wherein the computer-readable medium further comprises instructions for causing the at least one computer to select the punctured set of the plurality of data resource elements based at least in part on a modulation and coding scheme (MCS) selected for encoding data related to the one or more devices.

40. The computer program product of claim 39, wherein the instructions for causing the at least one computer to select dynamically selects the punctured set of the plurality of data resource elements.