Method and apparatus for transmitting/receiving uplink signaling information in a single carrier FDMA system

• US 20070183384A1
• Filed: 01/08/2007
• Published: 08/09/2007
• Est. Priority Date: 01/06/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kwak, Yong-Jun, Cho, Joon-Young, Lee, Ju-Ho
• Granted Patent: US 8,665,855 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04B 1/69 Spread spectrum techniques
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/1664 the supervisory signal being transmitted together with payload signals; piggybacking
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 27/261 Details of reference signals
• CPC Class Codes: H04L 5/0016 Time-frequency-code
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• 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
• CPC Class Codes: H04L 5/023 Multiplexing of multicarrier modulation signals multicarrier modulation H04L27/2601

Abstract

A method and an apparatus for transmitting uplink information items having various characteristics by using a single Fast Fourier Transform (FFT) block. The method includes determining whether uplink signaling information exists to be transmitted when uplink data exists to be transmitted; multiplexing the uplink data and control information for the uplink data and transmitting multiplexed data through a first frequency resource allocated for the uplink data, when no uplink signaling information exists; multiplexing the uplink data, control information for the uplink data, and the uplink signaling information, and transmitting multiplexed data through a first frequency resource allocated for the uplink data, when the uplink signaling information exists; and transmitting the uplink signaling information through a second frequency resource allocated for the uplink signaling information, when no uplink data is to be transmitted and the uplink signaling information exists to be transmitted.

Claims

1. A method for transmitting multiple types of uplink information in a Single Carrier Frequency Division Multiple Access (SC-FDMA) wireless communication system, the method comprising the steps of:

determining whether uplink signaling information exists to be transmitted when uplink data exists to be transmitted;

multiplexing the uplink data and control information for the uplink data and transmitting multiplexed data through a first frequency resource allocated for the uplink data when no uplink signaling information exists;

multiplexing the uplink data, control information for the uplink data, and the uplink signaling information, and transmitting multiplexed data through a first frequency resource allocated for the uplink data when uplink signaling information exists; and

transmitting the uplink signaling information through a second frequency resource allocated for the uplink signaling information when no uplink data is to be transmitted and uplink signaling information exists to be transmitted.

2. The method as claimed in claim 1, further comprising transmitting a pilot having a predetermined first pilot pattern, which indicates that no uplink signaling information is to be transmitted, through a predetermined time resource of the first frequency resource.

3. The method as claimed in claim 2, further comprising transmitting a pilot having a predetermined second pilot pattern, which indicates that uplink signaling information exists to be transmitted, through a predetermined time resource of the first frequency resource.

4. The method as claimed in claim 1, wherein the uplink signaling information is included in an uplink signaling field within the control information.

5. The method as claimed in claim 4, wherein the uplink signaling field within the control information is set to have a predetermined value when no uplink signaling information is to transmit.

6. The method as claimed in claim 1, wherein the uplink signaling information includes at least one of ACK/NACK, which indicates success or failure in reception of downlink data, and a Channel Quality Indicator (CQI), which indicates a status of a channel.

7. The method as claimed in claim 6, wherein the ACK/NACK and the CQI are transmitted using sub-carriers allocated for the CQI within a predetermined time resource when the uplink signaling information to be transmitted includes both the ACK/NACK and the CQI.

8. The method as claimed in claim 7, wherein one of the ACK/NACK and the CQI is transmitted using one of a first sub-carrier set allocated for the CQI and a second sub-carrier set allocated for the ACK/NACK within the time resource when the uplink signaling information to be transmitted includes one of the ACK/NACK and the CQI.

9. The method as claimed in claim 8, wherein each of the first sub-carrier set and the second sub-carrier set includes sub-carriers having equal intervals between them.

10. The method as claimed in claim 1, wherein the first sub-carrier set and the second sub-carrier set include sub-carriers having equal intervals or between them or sub-carriers adjacent to each other.

11. An apparatus for transmitting multiple types of uplink information in a Single Carrier Frequency Division Multiple Access (SC-FDMA) wireless communication system, the apparatus comprising:

a multiplexer for multiplexing uplink data and control information for the uplink data when uplink data exists to be transmitted and no uplink signaling information is to be transmitted, and multiplexing uplink data, control information for the uplink data, and the uplink signaling information when both the uplink data exists to be transmitted and the uplink signaling information exists to be transmitted;

a data resource mapper for transmitting information multiplexed by the multiplexer through a first frequency resource allocated for the uplink data; and

an uplink signaling resource mapper for transmitting the uplink signaling information through a second frequency resource allocated for the uplink signaling information, when no uplink data is to be transmitted.

12. The apparatus as claimed in claim 11, wherein the multiplexer transmits a pilot having a predetermined first pilot pattern, which indicates that no uplink signaling information is to be transmitted, through a predetermined time resource of the first frequency resource.

13. The apparatus as claimed in claim 12, wherein the multiplexer transmits a pilot having a predetermined second pilot pattern, which indicates that the uplink signaling information is to be transmitted, through a predetermined time resource of the first frequency resource.

14. The apparatus as claimed in claim 11, wherein the uplink signaling information is included in an uplink signaling field within the control information.

15. The apparatus as claimed in claim 14, wherein the uplink signaling field within the control information is set to have a predetermined value when no uplink signaling information is to transmit.

16. The apparatus as claimed in claim 11, wherein the uplink signaling information includes at least one of ACKnowledgement/Negative ACKnowledgement (ACK/NACK), which indicates success or failure in reception of downlink data, and a Channel Quality Indicator (CQI), which indicates a status of a channel.

17. The apparatus as claimed in claim 16, wherein the ACK/NACK and the CQI are transmitted using sub-carriers allocated for the CQI within a predetermined time resource when the uplink signaling information to be transmitted includes both the ACK/NACK and the CQI.

18. The apparatus as claimed in claim 17, wherein one of the ACK/NACK and the CQI is transmitted using one of a first sub-carrier set allocated for the CQI and a second sub-carrier set allocated for the ACK/NACK within the time resource, when the uplink signaling information to be transmitted includes one of the ACK/NACK and the CQI.

19. The apparatus as claimed in claim 18, wherein each of the first sub-carrier set and the second sub-carrier set includes sub-carriers having equal intervals between them.

20. The apparatus as claimed in claim 11, wherein the first sub-carrier set and the second sub-carrier set include sub-carriers having equal intervals or between them or sub-carriers adjacent to each other.

21. A method for receiving multiple types of uplink information in a Single Carrier Frequency Division Multiple Access (SC-FDMA) wireless communication system, the method comprising the steps of:

(1) determining whether uplink data has been received through a first frequency resource allocated for the uplink data;

(2) determining whether information received through the first frequency resource includes uplink signaling information, when the uplink data has been received;

(3) demultiplexing the information received through the first frequency resource into the uplink data and control information for the uplink data, when the information received through the first frequency resource does not include uplink signaling information;

(4) demultiplexing the information received through the first frequency resource into the uplink data, control information for the uplink data, and uplink signaling information, when the information received through the first frequency resource includes the uplink signaling information; and

(5) receiving the uplink signaling information through a second frequency resource allocated for the uplink signaling information, when the uplink data has not been received.

22. The method as claimed in claim 21, wherein determining in step (2) is based on a pilot pattern of a pilot for the uplink data, which is received through a predetermined time resource of the first frequency resource.

23. The method as claimed in claim 22, wherein the pilot has one of a predetermined first pilot pattern, which indicates that no uplink signaling information exists, and a predetermined second pilot pattern, which indicates that the uplink signaling information exists.

24. The method as claimed in claim 21, wherein the uplink signaling information is included in an uplink signaling field within the control information.

25. The method as claimed in claim 24, wherein the uplink signaling field within the control information is set to have a predetermined value when no uplink signaling information exists.

26. The method as claimed in claim 21, wherein the uplink signaling information includes at least one of ACKnowledgement/Negative ACKnowledgement 666 (ACK/NACK), which indicates success or failure in reception of downlink data, and a Channel Quality Indicator (CQI), which indicates a status of a channel.

27. The method as claimed in claim 26, wherein the ACK/NACK and the CQI are received using sub-carriers allocated for the CQI within a predetermined time resource when the uplink signaling information includes both the ACK/NACK and the CQI.

28. The method as claimed in claim 27, wherein one of the ACK/NACK and the CQI is received using one of a first sub-carrier set allocated for the CQI and a second sub-carrier set allocated for the ACK/NACK within the time resource when the uplink signaling information includes one of the ACK/NACK and the CQI.

29. The method as claimed in claim 28, wherein each of the first sub-carrier set and the second sub-carrier set includes sub-carriers having equal intervals between them.

30. The method as claimed in claim 21, wherein the first sub-carrier set and the second sub-carrier set include sub-carriers having equal intervals between them or sub-carriers adjacent to each other.

31. An apparatus for receiving multiple types of uplink information in a Single Carrier Frequency Division Multiple Access (SC-FDMA) wireless communication system, the apparatus comprising:

a determination unit for determining whether information includes uplink signaling information, when the information has been received through a first frequency resource allocated for uplink data;

a demultiplexer for demultiplexing the information received through the first frequency resource into the uplink data and control information for the uplink data when the information received through the first frequency resource does not include uplink signaling information, and demultiplexing the information received through the first frequency resource into the uplink data, control information for the uplink data, and uplink signaling information, when the information received through the first frequency resource includes the uplink signaling information; and

a receiver unit for receiving the uplink signaling information through a second frequency resource allocated for the uplink signaling information, when no information is received through the first frequency resource.

32. The apparatus as claimed in claim 31, wherein determination by the determination unit is based on a pilot pattern of a pilot for the uplink data, which is received through a predetermined time resource of the first frequency resource.

33. The apparatus as claimed in claim 32, wherein the pilot has one of a predetermined first pilot pattern, which indicates that no uplink signaling information exists, and a predetermined second pilot pattern, which indicates that the uplink signaling information exists.

34. The apparatus as claimed in claim 31, wherein the uplink signaling information is included in an uplink signaling field within the control information.

35. The apparatus as claimed in claim 34, wherein the uplink signaling field within the control information is set to have a predetermined value when there is no uplink signaling information.

36. The apparatus as claimed in claim 31, wherein the uplink signaling information includes at least one of ACKnowledgement/Negative ACKnowledgement (ACK/NACK), which indicates success or failure in reception of downlink data, and a Channel Quality Indicator (CQI), which indicates a status of a channel.

37. The apparatus as claimed in claim 36, wherein the ACK/NACK and the CQI are received using sub-carriers allocated for the CQI within a predetermined time resource when the uplink signaling information includes both the ACK/NACK and the CQI.

38. The apparatus as claimed in claim 37, wherein one of the ACK/NACK and the CQI is received using one of a first sub-carrier set allocated for the CQI and a second sub-carrier set allocated for the ACK/NACK within the time resource when the uplink signaling information includes one of the ACK/NACK and the CQI.

39. The apparatus as claimed in claim 38, wherein each of the first sub-carrier set and the second sub-carrier set includes sub-carriers having equal intervals between them.

40. The apparatus as claimed in claim 31, wherein the first sub-carrier set and the second sub-carrier set include sub-carriers having equal intervals between them or sub-carriers adjacent to each other.