METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SIGNALS IN MULTIPLE-INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM PROVIDED WITH PLURALITY OF ANTENNA ELEMENTS

• US 20080107196A1
• Filed: 01/07/2008
• Published: 05/08/2008
• Est. Priority Date: 10/19/2001
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: WON, Seung
• Granted Patent: US 8,098,762 B2
• Time in Patent Office: Days
• US Class Current: 375/260
• CPC Class Codes: H04B 7/0613 using simultaneous transmission H04B7/0686 takes precedence
• CPC Class Codes: H04B 7/0837 using pre-detection combining H04B7/0868 takes precedence
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04W 52/42 in systems with time, space, frequency or polarisation diversity

Abstract

A method and apparatus for transmitting/receiving signals in a multiple-input multiple-output communication system provided with a plurality of antenna elements is disclosed. Accordingly, the present invention provides a plurality of antenna groups at one distance having the antenna elements arranged at the other distance, a method and a means for identifying the groups and adding an identifier for the groups. It further provides a method and an apparatus for allocating power for the groups.

Claims

1-42. -42. (canceled)

43. A method for transmitting signals in a multiple-input multiple-output communication system provided with a plurality of antennas, comprising:

splitting a data stream into a plurality of sub-data streams according to a number of the plurality of antennas, wherein the plurality of sub-data streams includes at least one antenna identifier for identifying a corresponding antenna of the plurality of antennas and the antenna identifier is used for a sequence of pilot symbols with a prescribed pattern; and

transmitting each of the plurality of sub-data streams to a receiver through at least one antenna of the plurality of antennas.

44. The method of claim 43, wherein the plurality of sub-data streams transmitted through each antenna of the plurality of antennas have different transmission delays.

45. The method of claim 43, wherein the plurality of sub-data streams transmitted through each antenna of the plurality of antennas have different phases.

46. The method of claim 43, wherein two or more of the plurality of antennas are included in an antenna group according to locations of the plurality of antennas.

47. The method of claim 46, wherein the sub-data stream is shifted to each antenna included in the antenna group before the transmitting.

48. An apparatus for transmitting signals in a multiple-input multiple-output communication system provided with a plurality of antennas, the apparatus comprising:

a demultiplexer for splitting a data stream into a plurality of sub-data streams according to a number of the plurality of antennas, wherein the plurality of sub-data streams includes at least one antenna identifier for identifying a corresponding antenna of the plurality of antennas and the antenna identifier is used for a sequence of pilot symbols with a prescribed pattern; and

a processor for signal-processing the sub-data streams, wherein the apparatus transmits each of the plurality of sub-data streams to a receiver through at least one antenna of the plurality of antennas.

49. The apparatus of claim 48, wherein the plurality of sub-data streams transmitted through each antenna of the plurality of antennas have different transmission delays.

50. The apparatus of claim 48, wherein the plurality of sub-data streams transmitted through each antenna of the plurality of antennas have different phases.

51. The apparatus of claim 48, wherein two or more of the plurality of antennas are included in an antenna group according to locations of the plurality of antennas.

52. The apparatus of claim 51, wherein the sub-data stream is shifted to each antenna included in the antenna group before the sub-data stream is transmitted.

53. A method for transmitting signals in a multiple-input multiple-output communication system provided with a plurality of antennas, comprising:

splitting a data stream into a plurality of sub-data streams according to a number of the plurality of antennas, wherein the plurality of sub-data streams includes a sequence of pilot symbols with a prescribed pattern; and

transmitting each of the plurality of sub-data streams to a receiver through at least one antenna of the plurality of antennas,

wherein the sequence of pilot symbols is able to be used as an antenna identifier to identify a corresponding antenna of the plurality of antennas.

54. The method of claim 53, wherein the plurality of sub-data streams transmitted through each antenna of the plurality of antennas have different transmission delays.

55. The method of claim 53, wherein the plurality of sub-data streams transmitted through each antenna of the plurality of antennas have different phases.

56. The method of claim 53, wherein two or more of the plurality of antennas are included in an antenna group according to locations of the plurality of antennas.

57. The method of claim 56, wherein the sub-data stream is shifted to each antenna included in the antenna group before the transmitting.