METHOD AND SYSTEM FOR UMTS HSDPA SHARED CONTROL CHANNEL PROCESSING

• US 20110002234A1
• Filed: 09/03/2010
• Published: 01/06/2011
• Est. Priority Date: 11/30/2006
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: CHANG, LI FUNG, Kong, Hongwei
• Granted Patent: US 8,391,424 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H03M 13/37 Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition

Abstract

Aspects of a method and system for UMTS HSDPA Shared Control Channel processing may include calculating at a receiver, for each one of a plurality of control channels, a quality metric based at least one Viterbi Decoder state metric. A control channel may be selected on the basis of the quality metrics, where the quality metric is selected that provides maximum confidence. The selected control channel may be chosen if its corresponding 3GPP metric is greater than a specified threshold, where the threshold is a design parameter. A validity of a selected control channel may be determined based on consistency and a CRC, where the CRC may be derived from decoding a sub-frame. The calculating and selecting may be done for a first slot of a sub-frame for High-Speed Shared Control Channels.

Claims

1-24. -24. (canceled)

25. A method for processing signals in a communication system, the method comprising:

calculating at a receiver, for each one of a plurality of control channels, a quality metric based on at least one Viterbi Decoder state metric; and

selecting one of said plurality of control channels based on a selected one of said calculated quality metrics.

26. The method according to claim 25, wherein said selected one of said calculated quality metrics provides maximum confidence that said selected one of said plurality of control channels comprises desired data.

27. The method according to claim 25, wherein said selected one of said plurality of control channels is chosen if its corresponding 3GPP metric is greater than a specified threshold.

28. The method according to claim 27, wherein said specified threshold is a design parameter.

29. The method according to claim 25, comprising determining a validity of said selected one of said plurality of control channels based on consistency and/or a CRC.

30. The method according to claim 29, wherein said CRC is derived from decoding a sub-frame.

31. The method according to claim 25, wherein said calculating and said selecting are done for a first slot of a sub-frame.

32. The method according to claim 25, wherein said plurality of control channels comprise High-Speed Shared Control Channels.

33. A system for processing signals in a communication system, the system comprising:

one or more circuits that calculate at a receiver, for each one of a plurality of control channels, a quality metric based on at least one Viterbi Decoder state metric; and

said one or more circuits select one of said plurality of control channels based on a selected one of said calculated quality metrics.

34. The system according to claim 33, wherein said selected one of said calculated quality metrics provides maximum confidence that said selected one of said plurality of control channels comprises desired data.

35. The system according to claim 33, wherein said selected one of said plurality of control channels is chosen if its corresponding 3GPP metric is greater than a specified threshold.

36. The system according to claim 35, wherein said specified threshold is a design parameter.

37. The system according to claim 33, comprising determining a validity of said selected one of said plurality of control channels based on consistency and/or a CRC.

38. The system according to claim 37, wherein said CRC is derived from decoding a sub-frame.

39. The system according to claim 33, wherein said calculating and said selecting are done for a first slot of a sub-frame.

40. The system according to claim 33, wherein said plurality of control channels comprise High-Speed Shared Control Channels.

41. A machine-readable storage having stored thereon, a computer program having at least one code section for processing signals in a communication system, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

calculating at a receiver, for each one of a plurality of control channels, a quality metric based on at least one Viterbi Decoder state metric; and

selecting one of said plurality of control channels based on a selected one of said calculated quality metrics.

42. The machine-readable storage according to claim 41, wherein said selected one of said calculated quality metrics provides maximum confidence that said selected one of said plurality of control channels comprises desired data.

43. The machine-readable storage according to claim 41, wherein said selected one of said plurality of control channels is chosen if its corresponding 3GPP metric is greater than a specified threshold.

44. The machine-readable storage according to claim 43, wherein said specified threshold is a design parameter.

45. The machine-readable storage according to claim 41, wherein said at least one code section determines a validity of said selected one of said plurality of control channels based on consistency and/or a CRC.

46. The machine-readable storage according to claim 45, wherein said CRC is derived from decoding a sub-frame.

47. The machine-readable storage according to claim 41, wherein said calculating and said selecting are done for a first slot of a sub-frame.

48. The machine-readable storage according to claim 41, wherein said plurality of control channels comprise High-Speed Shared Control Channels.