TRANSMITTING DEVICE AND METHOD FOR TRANSMITTING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM, RECEIVING DEVICE AND METHOD FOR RECEIVING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM

• US 20080227497A1
• Filed: 03/03/2008
• Published: 09/18/2008
• Est. Priority Date: 03/16/2007
• Status: Active Grant

• Current Assignee: Sony Deutschland GmbH (Sony Group Corp.)
• Original Assignee: Sony Deutschland GmbH (Sony Group Corp.)
• Inventors: WANG, Zhaocheng, STIRLING-GALLACHER, Richard
• Granted Patent: US 8,345,532 B2
• Time in Patent Office: Days
• US Class Current: 455/562.1
• CPC Class Codes: H04B 1/0475 with means for limiting noise, interference or distortion H04B1/0483 takes precedence
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04B 7/0669 using different channel coding between antennas space-time coding H04L1/0618
• CPC Class Codes: H04B 7/0671 using different delays between antennas
• CPC Class Codes: H04B 7/068 using space frequency diversity space-frequency coding H04L1/0606
• CPC Class Codes: H04B 7/0695 using beam selection
• CPC Class Codes: H04B 7/0697 using spatial multiplexing
• CPC Class Codes: H04B 7/086 using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming

Abstract

A transmitting device for transmitting signals in a wireless communication system, includes at least two beam antennas, each beam antenna having a main beaming direction at a different angle and generating means for generating a number of signal streams to be transmitted within the wireless communication system, whereby the signal to be transmitted is split into these different streams and said number of signal streams corresponds to the number of beam antennas, whereby each signal stream is transmitted via a different beam antenna. Transmitting device for transmitting signals in a wireless communication system, comprising at least two beam antennas, each beam antenna having a main beaming direction at a different angle and generating means for generating a number of signal streams to be transmitted within the wireless communication system, whereby each of these signal streams comprises a different version of the data, and said number of signal streams corresponds to the number of beam antennas, whereby each signal stream is transmitted via a different beam antenna.

Claims

1. A transmitting device for transmitting signals in a wireless communication:

system, comprising;

at least two beam antennas, each beam antenna having a main beaming direction at a different angle; and

a generator configured to generate a number of signal streams to be transmitted within the wireless communication system, a signal to be transmitted is split into the number of signal streams and said number of signal streams corresponds to a number of said at least two beam antennas,

each signal stream being transmitted via a different beam antenna of the at least two beam antennas.

2. The transmitting device according to claim 1,

wherein the at least two beam antennas are overlapping.

3. The transmitting device according to claim 1,

wherein the at least two beam antennas are not overlapping.

4. The transmitting device according to claim 1,

wherein the generator maps the number of signal streams onto different sub-carriers with regular interlaced splitting.

5. The transmitting device according to claim 1,

wherein the number of signal streams are upconverted using different center frequencies and block processing.

6. The transmitting device according to claim 1,

wherein for each of the number of signal streams a different modulation scheme and adaptive sub-carrier loading is used.

7. A transmitting device for transmitting signals carrying data in a wireless communication system, comprising:

at least two beam antennas, each beam antenna having a main beaming direction at a different angle; and

a generator configured to generate a number of signal streams to be transmitted within the wireless communication system, wherein each of the signal streams includes a different version of the data, and said number of signal streams corresponds to the number of said at least two beam antennas,

each signal stream being transmitted via a different beam antenna of the at least two beam antennas.

8. The transmitting device according to claim 7,

wherein the at least two beam antennas are overlapping.

9. The transmitting device according to claim 7,

wherein the at least two beam antennas are not overlapping.

10. The transmitting device according to claim 7,

wherein each different version of data is encoded using different encoding schemes and one of space time block coding and space time trellis coding is used.

11. The transmitting device according to claim 7,

wherein each different version of data is cyclically shifted and cyclic delay diversity is used.

12. A receiving device for receiving signals carrying data in a wireless communication system, comprising:

at least two beam antennas, each beam antenna having a main beaming direction at a different angle so that via each beam antenna a different signal stream is received in the wireless communication system; and

a combiner configured to combine the different signal streams received via the different beam antennas into a single signal.

13. A receiving device according to claim 12,

wherein the at least two beam antennas are overlapping.

14. The receiving device according to claim 12,

wherein the at least two beam antennas are not overlapping.

15. The receiving device according to claim 13,

wherein the signal is received in different signal streams.

16. The receiving device according to claim 15,

wherein the combiner uses regular interlaced splitting.

17. The receiving device according to claim 15,

wherein the combiner is configured to the different signal streams from different center frequencies using block processing.

18. The receiving device according to claim 15,

wherein the combiner is configured to use a different demodulation scheme for the respective different signal streams and preferably and use adaptive sub-carrier loading.

19. The receiving device according to claim 12,

wherein the respective different signal streams comprises a different version of the data.

20. The receiving device according to claim 19,

wherein each different version of data is combined by using different respective decoding schemes and by using one of space time block decoding and space time trellis decoding.

21. A method for transmitting signals in a wireless communication system, comprising the steps of:

providing at least two beams antennas, respective of said at least two beam antennas having a main beaming direction at a different angle;

generating a number of signals streams to be transmitted within the wireless communication system such that a signal to be transmitted is split into the number of signal streams and said number of signal streams corresponds in number to the at least two beam antennas; and

transmitting each of said number of signal streams via a different beam antenna of said at least two beam antennas.

22. The method according to claim 21,

wherein the at least two beam antennas are overlapping.

23. The method according to claim 21,

wherein the beam antennas are not overlapping.

24. The method according to claim 21,

wherein the number of signal streams are mapped onto different sub-carriers and regular interlaced splitting is used.

25. The method according to claim 21,

wherein the number of signal streams are upconverted using different center frequencies using block processing.

26. The method according to claim 21,

wherein for each of the number of signal streams a different modulation scheme and adaptive sub-carrier loading is used.

27. A method for transmitting signals carrying data in a wireless communication system, comprising the steps of:

providing at least two beam antennas, respective of said at least two beam antennas having a main beaming direction at a different angle;

generating a number of signal streams to be transmitted within the wireless communication system, wherein each signal stream includes a different version of the data to be transmitted and said number of signal streams corresponds in number to the at least two beam antennas; and

transmitting each signal stream via a different beam antenna of the at least two beam antennas.

28. The method according to claim 27,

wherein the at least two beam antennas are overlapping.

29. The method according to claim 27,

wherein the at least two beam antennas are not overlapping.

30. The method according to claim 27,

wherein the different versions of data are encoded using different encoding schemes and one of space time block coding and space time trellis coding is used.

31. The method according to claim 27,

wherein the different versions of data are cyclically shifted and cyclic delay diversity is used.

32. A method for receiving signals carrying data in a wireless communication system, comprising the steps of:

providing at least two beam antennas, each beam antenna having a main beaming direction at a different angle;

receiving via each beam antenna a signal stream in the wireless communication system; and

combining respective received signal streams via the different beam antennas into a single signal.

33. The method according to claim 32,

wherein the at least two beam antennas are overlapping.

34. The method according to claim 32,

wherein the at least two beam antennas are not overlapping.

35. The method according to claim 32,

wherein the signal is received in different signal streams.

36. The method according to claim 35,

wherein said combining step includes combining signal streams using regular interlaced splitting.

37. The method according to claim 35,

wherein the combining step includes downconverting the signal streams from different center frequencies using block processing.

38. The method according to claim 35,

wherein the combining step includes using a different demodulation scheme for each signal steam using adaptive sub-carrier loading.

39. The method according to claim 32,

wherein each received signal stream comprises a different version of the data.

40. The method according to claim 39,

wherein each different versions of data is combined by using one of space time block coding and space time trellis coding.