Uplink control information (UCI) multiplexing on the physical uplink shared channel (PUSCH)

• US 8,634,345 B2
• Filed: 06/18/2010
• Issued: 01/21/2014
• Est. Priority Date: 06/18/2010
• Status: Expired due to Fees

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Kowalski, John Michael, Yin, Zhanping
• Primary Examiner(s): GREY, CHRISTOPHER P
• Application Number:
  US12/819,165
• Publication Number:
  US 20110310855A1
• Time in Patent Office: 1,313 Days
• Field of Search: 370/252, 370/336, 370/328, 370/329, 370/341, 455/434, 714/786
• US Class Current: 370/328
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 1/0067 Rate matching H04L1/0013 and H04L1/08 take precedence
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 1/0073 Special arrangements for feedback channel
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI

Abstract

A method for multiplexing uplink control information (UCI) on a physical uplink shared channel (PUSCH) is described. Control data is coded with user data repetition. The coded control data is mapped to a PUSCH resource. A data block base for the coded control data is also mapped in the PUSCH resource. The UCI may include channel quality indicators (CQI)/precoding matrix indicators (PMI), acknowledgement/negative-acknowledgement (ACK/NACK) and rank indicators (RI).

Claims

1. A method for multiplexing uplink control information (UCI) on a physical uplink shared channel (PUSCH), comprising:

coding control data over a repeated portion of user data;

mapping the coded control data to a PUSCH resource;

mapping a data block base for the coded control data in the PUSCH resource; and

transmitting the control data and the user data on the PUSCH resource,

wherein the PUSCH resource comprises a slot, wherein the control data comprises channel quality indicators (CQI)/precoding matrix indicators (PMI), acknowledgement/negative-acknowledgement (ACK/NACK) and rank indicators (RI), and further comprising;

multiplexing mixed coded CQI/PMI from the top down of the slot;

using a first data block as a superposition coding base for the mixed coded CQI/PMI;

channel interleaving mixed coded ACK/NACK from the bottom up in a first plurality of required columns of the slot;

using a second data block as a superposition coding base for the mixed coded ACK/NACK;

channel interleaving mixed coded RI from the bottom up in a second plurality of required columns of the slot; and

using a third data block as a superposition coding base for the mixed coded RI.

2. The method of claim 1, further comprising obtaining a mixed CQI/PMI control output as an XOR output of the first data block and an expanded CQI/PMI control coding output.

3. The method of claim 1, further comprising obtaining a mixed ACK/NACK control output as an XOR output of the second data block and expanded ACK/NACK coding outputs.

4. The method of claim 1, further comprising obtaining a mixed RI control output as an XOR output of the third data block and expanded RI coding outputs.

5. The method of claim 1, wherein a rate matched data output has a coding rate greater than 1/3, and wherein the first data block is on subcarriers that are immediately below a control multiplexing region as the superposition coding base.

6. The method of claim 1, wherein a rate matched data output has a coding rate less than 1/3, and wherein the first data block is on subcarriers that are immediately below a turbo code repetition part.

7. The method of claim 1, wherein the second data block is immediately above the channel interleaved mixed coded ACK/NACK, and wherein the third data block is immediately above the channel interleaved mixed coded RI.

8. The method of claim 1, wherein the slot comprises a first layer and a second layer, wherein a codeword is mapped on both layers, and wherein the method is performed on the first layer.

9. The method of claim 1, wherein the slot comprises a first layer and a second layer, wherein a codeword is mapped on both layers, wherein the UCI is distributed on the first layer and the second layer, and wherein the method is performed separately for each layer.

10. The method of claim 1, wherein the slot comprises a first layer and a second layer, wherein a codeword is mapped on both layers, wherein the mixed coded CQI/PMI is multiplexed from the top down of the first layer of the slot;

wherein the mixed coded RI is mapped from the bottom up in one of the plurality of required columns of the first layer, and wherein the mixed coded ACK/NACK is mapped from the bottom up in a first plurality of required columns of the second layer.

11. The method of claim 10, wherein the first data block is on subcarriers that are immediately below the multiplexed mixed coded CQI/PMI, wherein the second data block is on subcarriers immediately above the channel interleaved mixed coded ACK/NACK, and wherein the third data block is immediately above the channel interleaved mixed coded RI.

12. The method of claim 10, wherein the first data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded CQI/PMI, wherein the second data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded ACK/NACK, and wherein the third data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded RI.

13. The method of claim 1, wherein the slot comprises a first layer and a second layer, wherein a first codeword is mapped to the first layer, wherein a second codeword is mapped to the second layer, and wherein the method is performed on the first layer.

14. The method of claim 1, wherein the slot comprises a first layer and a second layer, wherein a first codeword is mapped to the first layer, wherein a second codeword is mapped to the second layer, wherein the UCI is distributed on the first layer and the second layer, and wherein the method is performed separately for each layer.

15. The method of claim 1, wherein the slot comprises a first layer and a second layer, wherein a first codeword is mapped to the first layer, wherein a second codeword is mapped to the second layer, wherein the mixed coded CQI/PMI is multiplexed from the top down of the first layer of the slot;

wherein the mixed coded RI is mapped from the bottom up in one of the plurality of required columns of the first layer, and wherein the mixed coded ACK/NACK is mapped from the bottom up in a first plurality of required columns of the second layer.

16. The method of claim 15, wherein the first data block is on subcarriers that are immediately below the multiplexed mixed coded CQI/PMI, wherein the second data block is on subcarriers immediately above the channel interleaved mixed coded ACK/NACK, and wherein the third data block is immediately above the channel interleaved mixed coded RI.

17. The method of claim 15, wherein the first data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded CQI/PMI, wherein the second data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded ACK/NACK, and wherein the third data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded RI.

18. The method of claim 1, wherein the slot comprises a first layer, a second layer, a third layer and a fourth layer, wherein a first codeword is mapped to the first layer and the second layer, wherein a second codeword is mapped to the third layer and the fourth layer, and wherein the method is performed on the first layer.

19. The method of claim 1, wherein the slot comprises a first layer, a second layer, a third layer and a fourth layer, wherein a first codeword is mapped to the first layer and the second layer, wherein a second codeword is mapped to the third layer and the fourth layer, wherein the mixed coded CQI/PMI is distributed and multiplexed on the first layer and the second layer, and wherein the mixed coded ACK/NACK and the mixed coded RI are distributed and mapped on the first layer, the second layer, the third layer and the fourth layer.

20. The method of claim 1, further comprising computing a number of symbols required for mixed control coding based on a scaled resource allocation offset.

21. A method for multiplexing uplink control information (UCI) on a physical uplink shared channel (PUSCH), comprising:

coding control data over a repeated portion of user data;

mapping the coded control data to a PUSCH resource;

mapping a data block base for the coded control data in the PUSCH resource; and

transmitting the control data and the user data on the PUSCH resource,

wherein the control data comprises channel quality indicators (CQI)/precoding matrix indicators (PMI), and further comprising;

multiplexing mixed coded CQI/PMI from the top down of a first layer of a slot, wherein the slot comprises the first layer and a second layer, wherein a first codeword is mapped to the first layer, and wherein a second codeword is mapped to the second layer;

using a first data block as a superposition coding base for the mixed coded CQI/PMI;

mapping a coded ACK/NACK on both the first codeword and the second codeword from the bottom up of the slot in a first plurality of required columns; and

mapping a coded RI on both the first codeword and the second codeword from the bottom up of the slot in a second plurality of required columns.

22. A method for multiplexing uplink control information (UCI) on a physical uplink shared channel (PUSCH), comprising:

coding control data over a repeated portion of user data;

mapping the coded control data to a PUSCH resource;

mapping a data block base for the coded control data in the PUSCH resource; and

transmitting the control data and the user data on the PUSCH resource,

wherein coding control data over a repeated portion of user data comprises;

removing symbols in the user data;

repeating symbols in the control data to increase a number of symbols in the control data;

copying a number of symbols in the user data that is the same as the number of symbols in the control data;

adding the copied user data symbols to the control data; and

multiplexing the user data and the control data.

23. The method of claim 22, wherein coding control data over a repeated portion of user data further comprises encoding the user data using a 1/3 Turbo code, low-density parity-check (LDPC) code, or a convolutional code.

24. The method of claim 22, wherein coding control data over a repeated portion of user data further comprises encoding the control data using a Reed-Muller code or a 1/3 tail biting convolutional code.

25. The method of claim 22, wherein the repeating comprises copying symbols in the control data k*m times, where k is a constant determined based on the type and size of the control data, a resource allocation offset sent from a base station, and a modulation and coding scheme (MCS), and m is a repetition scalar determined based on the resource allocation offset.

26. The method of claim 22, wherein the control data and user data are transmitted in a long term evolution (LTE) system.

27. The method of claim 22, wherein the adding comprises a bitwise exclusive or (XOR) operation.

28. The method of claim 22, wherein the control data is a channel quality indicator (CQI), acknowledgment/non-acknowledgment data (ACK/NACK), or a rank indicator (RI).

29. The method of claim 22, wherein the multiplexing comprises time division multiplexing (TDM) and channel multiplexing.

30. A wireless device for multiplexing uplink control information (UCI) on a physical uplink shared channel (PUSCH), comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory, the instructions being executable by the processor to;

code control data over a repeated portion of user data;

map the coded control data to a PUSCH resource; and

map a data block base for the coded control data in the PUSCH resource,

wherein the PUSCH resource comprises a slot, wherein the control data comprises channel quality indicators (CQI)/precoding matrix indicators (PMI), acknowledgement/negative-acknowledgement (ACK/NACK) and rank indicators (RI), and wherein the instructions are further executable to;

multiplex mixed coded CQI/PMI from the top down of a slot;

use a first data block as a superposition coding base for the mixed coded CQI/PMI;

channel interleave mixed coded ACK/NACK from the bottom up in a first plurality of required columns of the slot;

use a second data block as a superposition coding base for the mixed coded ACK/NACK;

channel interleave mixed coded RI from the bottom up in a second plurality of required columns of the slot; and

use a third data block as a superposition coding base for the mixed coded RI.

31. The wireless device of claim 30, wherein the instructions are further executable to obtain a mixed CQI/PMI control output as an XOR output of the first data block and an expanded CQI/PMI control coding output.

32. The wireless device of claim 30, wherein the instructions are further executable to obtain a mixed ACK/NACK control output as an XOR output of the second data block and expanded ACK/NACK coding outputs.

33. The wireless device of claim 30, wherein the instructions are further executable to obtain a mixed RI control output as an XOR output of the third data block and expanded RI coding outputs.

34. The wireless device of claim 30, wherein a rate matched data output has a coding rate greater than 1/3, and wherein the first data block is on subcarriers that are immediately below a control multiplexing region as the superposition coding base.

35. The wireless device of claim 30, wherein a rate matched data output has a coding rate less than 1/3, and wherein the first data block is on subcarriers that are immediately below a turbo code repetition part.

36. The wireless device of claim 30, wherein the second data block is immediately above the channel interleaved mixed coded ACK/NACK, and wherein the third data block is immediately above the channel interleaved mixed coded RI.

37. The wireless device of claim 30, wherein the slot comprises a first layer and a second layer, wherein a codeword is mapped on both layers, and wherein the mapping is performed on the first layer.

38. The wireless device of claim 30, wherein the slot comprises a first layer and a second layer, wherein a codeword is mapped on both layers, wherein the UCI is distributed on the first layer and the second layer, and wherein the mapping is performed separately for each layer.

39. The wireless device of claim 30, wherein the slot comprises a first layer and a second layer, wherein a codeword is mapped on both layers, wherein the mixed coded CQI/PMI is multiplexed from the top down of the first layer of the slot;

wherein the mixed coded RI is mapped from the bottom up in one of the plurality of required columns of the first layer, and wherein the mixed coded ACK/NACK is mapped from the bottom up in a first plurality of required columns of the second layer.

40. The wireless device of claim 39, wherein the first data block is on subcarriers that are immediately below the multiplexed mixed coded CQI/PMI, wherein the second data block is on subcarriers immediately above the channel interleaved mixed coded ACK/NACK, and wherein the third data block is immediately above the channel interleaved mixed coded RI.

41. The wireless device of claim 39, wherein the first data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded CQI/PMI, wherein the second data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded ACK/NACK, and wherein the third data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded RI.

42. The wireless device of claim 30, wherein the slot comprises a first layer and a second layer, wherein a first codeword is mapped to the first layer, wherein a second codeword is mapped to the second layer, and wherein the mapping is performed on the first layer.

43. The wireless device of claim 30, wherein the slot comprises a first layer and a second layer, wherein a first codeword is mapped to the first layer, wherein a second codeword is mapped to the second layer, wherein the UCI is distributed on the first layer and the second layer, and wherein the mapping is performed separately for each layer.

44. The wireless device of claim 30, wherein the slot comprises a first layer and a second layer, wherein a first codeword is mapped to the first layer, wherein a second codeword is mapped to the second layer, wherein the mixed coded CQI/PMI is multiplexed from the top down of the first layer of the slot, wherein the mixed coded RI is mapped from the bottom up in one of the plurality of required columns of the first layer, and wherein the mixed coded ACK/NACK is mapped from the bottom up in a first plurality of required columns of the second layer.

45. The wireless device of claim 44, wherein the first data block is on subcarriers that are immediately below the multiplexed mixed coded CQI/PMI, wherein the second data block is on subcarriers immediately above the channel interleaved mixed coded ACK/NACK, and wherein the third data block is immediately above the channel interleaved mixed coded RI.

46. The wireless device of claim 44, wherein the first data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded CQI/PMI, wherein the second data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded ACK/NACK, and wherein the third data block is on subcarriers of the second layer corresponding to the multiplexed mixed coded RI.

47. The wireless device of claim 30, wherein the slot comprises a first layer, a second layer, a third layer and a fourth layer, wherein a first codeword is mapped to the first layer and the second layer, wherein a second codeword is mapped to the third layer and the fourth layer, and wherein the mapping is performed on the first layer.

48. The wireless device of claim 30, wherein the slot comprises a first layer, a second layer, a third layer and a fourth layer, wherein a first codeword is mapped to the first layer and the second layer, wherein a second codeword is mapped to the third layer and the fourth layer, wherein the mixed coded CQI/PMI is distributed and multiplexed on the first layer and the second layer, and wherein the mixed coded ACK/NACK and the mixed coded RI are distributed and mapped on the first layer, the second layer, the third layer and the fourth layer.

49. The wireless device of claim 30, wherein the instructions are further executable to compute a number of symbols required for mixed control coding based on a scaled resource allocation offset.

50. A wireless device for multiplexing uplink control information (UCI) on a physical uplink shared channel (PUSCH), comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory, the instructions being executable by the processor to;

code control data over a repeated portion of user data;

map the coded control data to a PUSCH resource; and

map a data block base for the coded control data in the PUSCH resource,

wherein the control data comprises channel quality indicators (CQI)/precoding matrix indicators (PMI), and wherein the instructions are further executable to;

multiplex mixed coded CQI/PMI from the top down of a first layer of a slot, wherein the slot comprises the first layer and a second layer, wherein a first codeword is mapped to the first layer, and wherein a second codeword is mapped to the second layer;

use a first data block as a superposition coding base for the mixed coded CQI/PMI;

map a coded ACK/NACK on both the first codeword and the second codeword from the bottom up of the slot in a first plurality of required columns; and

map a coded RI on both the first codeword and the second codeword from the bottom up of the slot in a second plurality of required columns.

51. A wireless device for multiplexing uplink control information (UCI) on a physical uplink shared channel (PUSCH), comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory, the instructions being executable by the processor to;

code control data over a repeated portion of user data;

map the coded control data to a PUSCH resource; and

map a data block base for the coded control data in the PUSCH resource,

wherein coding control data with user data repetition comprises;

removing symbols in the user data;

repeating symbols in the control data to increase a number of symbols in the control data;

copying a number of symbols in the user data that is the same as the number of symbols in the control data;

adding the copied user data symbols to the control data; and

multiplexing the user data and the control data.

52. The wireless device of claim 51, wherein coding control data over a repeated portion of user data further comprises encoding the user data using a 1/3 Turbo code, low-density parity-check (LDPC) code, or a convolutional code.

53. The wireless device of claim 51, wherein coding control data over a repeated portion of user data further comprises encoding the control data using a Reed-Muller code or a 1/3 tail biting convolutional code.

54. The wireless device of claim 51, wherein the repeating comprises copying symbols in the control data k*m times, where k is a constant determined based on the type and size of the control data, a resource allocation offset sent from a base station, and a modulation and coding scheme (MCS), and m is a repetition scalar determined based on the resource allocation offset.

55. The wireless device of claim 51, wherein the control data and user data are transmitted on a physical uplink shared channel (PUSCH) in a long term evolution (LTE) system.

56. The wireless device of claim 51, wherein the adding comprises a bitwise exclusive or (XOR) operation.

57. The wireless device of claim 51, wherein the control data is a channel quality indicator (CQI), acknowledgment/non-acknowledgment data (ACK/NACK), or a rank indicator (RI).

58. The wireless device of claim 51, wherein the multiplexing comprises time division multiplexing (TDM) and channel multiplexing.