TH80245A - Spatial spread With a variety of schemes for spatial-time and space-frequency transmission For wireless communication systems - Google Patents

Abstract

The DC60 provides several techniques for transmitting data using a combination of diversity schemes. Of the submissions have been described. These submission diversity schemes will include Spatial distribution, continuous beam formation Variety, cyclic delay, variety of space-time transmission (STTD), variety of space-frequency (SFTD) transmission, and orthogonal transmission diversity (O TD) the submission entity processes the flow. One or more information symbols (NDs) based on a variety of transmission schemes (such as STT, DS, FTD, or OTD) in order to generate an encrypted symbol stream. Multiple currents (Nc) Each stream symbolic information may be sent as a given symbol stream. Encrypt a single stream or to a multi-encoded symbol stream (ie two) by using STTDS, FTD, or OTD. Spatial distribution On the Nc-encoded symbol stream, the current with a different matrix in order to generate Multiple current (NT) transmission symbols for transmission from additional NT antennas or Optionally The transmission entity may perform a continuous waveform on the stream. NT stream transmission symbol in the time domain or frequency domain. One of the many techniques for transmitting information by using a combination of diversity schemes. Of the submissions have been described. These submission diversity schemes will include Spatial distribution, continuous beam formation Variety, cyclic delay, variety of space-time transmission (STTD), variety of space-frequency (SFTD) transmission, and orthogonal transmission diversity (O TD) the submission entity processes the flow. One or more information symbols (NDs) based on a variety of transmission schemes (such as STT, DS, FTD, or OTD) in order to generate an encrypted symbol stream. Multiple currents (Nc) Each stream symbolic information may be sent as a given symbol stream. Encrypt a single stream or to a multi-stream encoded symbol stream (ie two) by using STT, DS, FTD, or OTD. Spatial distribution On the Nc-encoded symbol stream, the current with a different matrix to generate Multiple current (NT) transmission symbols for transmission from additional NT antennas or Optionally The transmission entity may perform a continuous waveform on the stream. The transmission symbol NT stream in the time domain or frequency domain. The one

Claims (32)

1. The device consists of: at least one processor configured to process symbolic data based on various transmission schemes in order to generate encoded symbols and to perform spatial processing on those encoded symbols in order to generate transmission symbols for transmission via a number of antennas, and memory coupled to at least one of those processors. 2. The machine of claim 1 where at least one processor is configured to perform spatial spreading operations with a number of matrices and to use different matrices for different frequency subbands, different time periods, or both. 3. The machine of claim 1 where at least one processor is configured to perform beamforming operations with a number of matrices and to use different matrices for different subbands. 4. The machine of claim 1 where at least one processor is configured to process data symbols based on a spatial-time transmission (STTD) variety scheme in order to generate the encoded symbols. 5. The machine of claim 1 where at least one processor is configured to process data symbols based on a spatial-frequency transmission variety (SFTD) scheme in order to generate the encoded symbols. 6. The machine of claim 1 where at least one processor is configured to process data symbols based on an orthogonal transmission variety (OTD) scheme in order to generate the encoded symbols. 7. The equipment of claim 1, where at least one processor is configured to receive at least two data symbols to be transmitted over the subband in two symbol periods, to process at least two data symbols on the basis of a transmission variety scheme in order to generate two sets of encoded symbols, and to provide two sets of encoded symbols for transmission over the subband in two symbol periods. 8. The equipment of claim 1 where at least one processor is configured to receive at least two data symbols to be transmitted over two subbands in one symbol period; to process those two data symbols on the basis of a transmission variety scheme in order to generate two sets of encoded symbols; and to provide those two sets of encoded symbols for transmission over two subbands in that symbol period. 9. The instrument of claim 1, where at least one processor is configured to perform orthogonal frequency division multiplexing (OFDM) modulation on the transmit symbol for each antenna in order to generate the transmit symbol for that antenna. 10. The equipment of claim 1, where at least one processor is configured to perform single carrier frequency division multiple access modulation (SC-FDMA) on the transmit symbol for each antenna in order to generate the transmit symbol for that antenna. 11. The equipment of claim 1, where at least one processor is configured to feed different loop delays for a number of antennas. 12. The instrument of claim 1, where at least one processor is configured to generate transmission symbols for a number of antennas based on transmission symbols, and to loop transmission symbols for a number of antennas by a non-negative integer of different samples. 13. The methodology involves: processing data symbols based on a variety of transmission schemes to create encoded symbols, and performing spatial processing on those encoded symbols to create transmission symbols for transmission over a number of antennas. 14. The method of claim 13, whereby symbol processing based on transmission diversity schemes includes symbol processing based on space-time transmission diversity schemes (STTD), space-frequency transmission diversity schemes (SFTD), or orthogonal transmission diversity schemes (OTD) in order to generate the encoded symbols. 15. The method of claim 13, where the operations for spatial processing on the encoded symbol include: spatial spreading operations with a number of matrices and the use of different matrices for different frequency subbands, different time periods, or both. 16. The method of claim 13 is included: feeding different loop delays for a number of antennas. 17. The device consists of: a path for processing data symbols based on a variety of transmission schemes in order to create encoded symbols, and a path for performing spatial processing on those encoded symbols in order to transmit the transmission symbols over a number of antennas. 18. The instrument of claim 17, whereby the path for processing data symbols based on transmission diversity schemes shall include the path for processing data symbols based on space-time transmission diversity schemes (STTD), space-frequency transmission diversity schemes (SFTD), or orthogonal transmission diversity schemes (OTD) in order to generate the encoded symbols. 19. The instrument of claim 17, where the paths for performing spatial processing operations on encoded symbols include: paths for performing spatial propagation operations with a number of matrices, and paths for applying different matrices for different frequency subbands, different time periods, or both. 20. The instrument of claim 17 comprises: a method for feeding different loop delays for a number of antennas. 21. The machine consists of: at least one processor configured to process one symbol data stream based on a variety of transmission schemes in order to generate at least two encoded symbol streams and to perform spatial processing on at least two encoded symbol streams in order to generate a number of transmission symbol streams for transmission over a number of antennas; and memory coupled to at least one of those processors. 22. The machine of claim 21 where at least one processor is configured to process at least one data symbol stream based on a space-time transmission diversity (STTD) scheme, a space-frequency transmission diversity (SFTD) scheme, or orthogonal transmission diversity (OTD) scheme in order to generate at least two encoded symbol streams. 23. The machine of claim 21 where at least one processor is configured to perform spatial spreading operations with a number of matrices and to use different matrices for different subbands, different time periods, or both. 24. The machine of claim 21, where at least one processor is configured to generate at least one additional data symbol stream to be transmitted without transmission diversion schemes, and to perform spatial processing on at least two encoded symbol streams and at least one additional data symbol stream with a certain matrix in order to generate a certain number of transmission symbol streams. 25. The machine of claim 24 where at least one processor is configured to scale at least two encoded symbol streams with at least two gains chosen for at least two encoded symbol streams and to scale at least one data symbol stream with at least one gain chosen for at least one data symbol stream. 26. The machine of claim 21, where at least one processor is configured to process at least one data stream based on at least one encoding and modulation scheme in order to generate at least one data symbol stream. 27. The method comprises: processing at least one data symbol stream based on a transmission variety scheme in order to generate at least two encoded symbol streams, and performing spatial processing on at least two encoded symbol streams in order to generate a certain number of transmission symbol streams for transmission over a certain number of antennas. 28. The method of claim 27, where processing of at least one symbol stream based on a transmission diversity scheme, involves processing at least one symbol stream based on a space-time transmission diversity scheme (STTD), space-frequency transmission diversity scheme (SFTD), or orthogonal transmission diversity scheme (OTD) in order to create at least two encoded symbol streams. 29. The method of claim 27, where the spatial processing operations on at least two encoded symbol streams consist of performing spatial distribution operations on at least two encoded symbol streams with a number of matrices and using different matrices for different subbands, different time periods, or both. 30. The device consists of: a path for processing at least one data symbol stream based on a transmission diversity scheme in order to generate at least two encoded symbol streams, and a path for performing spatial processing on at least two encoded symbol streams in order to generate a number of transmission symbol streams for transmission through a number of antennas. 31. The instrument of claim 30, whereby the path for processing at least one data symbol stream based on a transmission diversity scheme consists of a path for processing at least one data symbol stream based on a space-time transmission diversity scheme (STTD), space-frequency transmission diversity scheme (SFTD), or orthogonal transmission diversity scheme (OTD) in order to generate at least two encoded symbol streams. 32. The instrument of claim 30, where the methods for performing spatial processing operations on at least two encoded symbol streams include the methods for performing spatial propagation operations on at least two encoded symbol streams with a number of matrices, and the methods for applying different matrices for different frequency subbands, different time periods, or both.