Abstract
Method and apparatus for uplink transmission using multiple antennas are disclosed. A wireless transmit/receive unit (WTRU) performs space time transmit diversity (STTD) encoding on an input stream of a physical channel configured for STTD. Each physical channel may be mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch. The WTRU may perform the STTD encoding either in a binary domain or in a complex domain. Additionally the WTRU may perform pre-coding on at least one physical channel including the E-DPDCH with the pre-coding weights and transmitting the pre-coded output streams via a plurality of antennas. The pre-coding may be performed either after or before spreading operation.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| 3G | 30/10/2011 | ISLD-201109-010 | INTERDIGITAL INC |
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Signal Processing
Product
Use Cases
Wireless communication
Services
Claim
1. A method implemented in a wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the method comprising: performing space time transmit diversity (STTD) encoding on an input stream of at least one physical channel configured for STTD, each physical channel being mapped to either an in-phase (I) branch or a quadrature (Q) branch, the STTD encoding being performed independently on the I branch and the Q branch in a binary domain;', 'combining all configured physical channels on an I branch and a Q branch, respectively, to generate a plurality of combined streams in a complex format, one combined stream for each antenna; and', 'transmitting the combined streams via a plurality of antennas.
2. The method of claim 1 wherein the STTD encoding generates a plurality of output streams for the I branch and the Q branch, respectively, and a constellation point of input data on the I branch is switched in one of the output streams in accordance with a first constellation mapping rule, and a constellation point of input data on the Q branch is switched in one of the output streams in accordance with a second constellation mapping rule.
3. The method of claim 1 wherein the physical channel configured for STTD includes at least one of an enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH), an E-DCH dedicated physical control channel (E-DPCCH), a high speed dedicated physical control channel (HS-DPCCH), a dedicated physical control channel (DPCCH), and a dedicated physical data channel (DPDCH).
4. A method implemented in a wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the method comprising:', '-72-1400784-1 performing physical layer processing including a spreading operation on a binary sequence of each of a plurality of physical channels, each physical channel being mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch; grouping physical channels to be space time transmit diversity (STTD) encoded;', 'combining binary sequences of the physical channels to be STTD encoded on an I branch and a Q branch, respectively, into a complex-valued chip sequence;', 'performing STTD encoding on a block of complex-valued chips, the complex- valued chips of the physical channels being aligned to a physical channel configured with a largest spreading factor among the physical channels; and transmitting the STTD-encoded chips via a plurality of antennas.
5. The method of claim 4 wherein the physical channel configured for STTD includes at least one of an enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH), an E-DCH dedicated physical control channel (E-DPCCH), a high speed dedicated physical control channel (HS-DPCCH), a dedicated physical control channel (DPCCH), and a dedicated physical data channel (DPDCH).
6. A method implemented in a wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the method comprising: generating at least one enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH) data stream;', 'performing physical layer processing on a binary sequence of each of a plurality of physical channels including an E-DPDCH, each physical channel being mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch; determining pre- coding weights;', 'performing pre-coding on at least one physical channel including the E- DPDCH by multiplying the pre-coding weights to a data stream on at least one', '-73-1400784-1 physical channel or a combined data stream of multiple physical channels to generate a plurality of output streams, one output stream per antenna;', 'transmitting a pair of control channels carrying pilot sequences for channel estimation; and', 'transmitting the output streams via a plurality of antennas, wherein either multiple E-DPDCH data streams are transmitted using multiple-input multiple-output (MIMO) or a single E-DPDCH data stream is transmitted using a closed loop transmit diversity.
7. The method of claim 6 wherein the physical channel on which the pre-coding is performed further includes at least one of an E-DCH dedicated physical control channel (E-DPCCH), a high speed dedicated physical control channel (HS-DPCCH), a dedicated physical channel (DPDCH), and a dedicated physical control channel (DPCCH).
8. The method of claim 6 wherein the pilot sequences carried on the pilot channels are orthogonal.
9. The method of claim 6 wherein the pilot channels are transmitted using a different channelization code
10. The method of claim 6 wherein a pre-coding weight matrix of the pre-coding weights is diagonal
11. A wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the WTRU comprising:', 'a space time transmit diversity (STTD) encoder configured to perform space time transmit diversity (STTD) encoding on an input stream of at least one physical channel configured for STTD, each physical channel being mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch, the STTD', '-74-1400784-1 encoding being performed independently on the I branch and the Q branch in a binary domain;', 'a combiner configured to combine all configured physical channels on an I branch and a Q branch, respectively, to generate a plurality of combined streams in a complex format, one combined stream for each antenna; and', 'a plurality of antennas for transmitting the combined streams
12. The WTRU of claim 11 wherein the STTD encoder generates a plurality of output streams for the I branch and the Q branch, respectively, such that a constellation point of input data on the I branch is switched in one of the output streams in accordance with a first constellation mapping rule, and a constellation point of input data on the Q branch is switched in one of the output streams in accordance with a second constellation mapping rule
13. The WTRU of claim 11 wherein the physical channel configured for STTD includes at least one of an enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH), an E-DCH dedicated physical control channel (E-DPCCH), a high speed dedicated physical control channel (HS-DPCCH), a dedicated physical control channel (DPCCH), and a dedicated physical data channel (DPDCH)
14. A wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the WTRU comprising:', 'a physical layer processing block configured to perform physical layer processing including a spreading operation on a binary sequence of each of a plurality of physical channels, each physical channel being mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch;', 'a combiner configured to group physical channels to be space time transmit diversity (STTD) encoded and combine binary sequences of the physical channels to be STTD encoded on an I branch and a Q branch, respectively, into a complex-valued chips;', '-75-1400784-1 an STTD encoder configured to perform STTD encoding on a block of complex- valued chips, the complex- valued chips of the physical channels being aligned to a physical channel configured with a largest spreading factor among the physical channels; and', 'a plurality of antennas for transmitting the STTD-encoded chips
15. The WTRU of claim 14 wherein the physical channel configured for STTD includes at least one of an enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH), an E-DCH dedicated physical control channel (E-DPCCH), a high speed dedicated physical control channel (HS-DPCCH), a dedicated physical control channel (DPCCH), and a dedicated physical data channel (DPDCH)
16. A wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the WTRU comprising:', 'a physical layer processing block configured to generate at least one enhanced dedicated channel (E-DCH) dedicated physical data channel (E- DPDCH) data stream, and perform physical layer processing on a binary sequence of each of a plurality of physical channels including an E-DPDCH, each physical channel being mapped to either an in-phase (I) branch or a quadrature- phase (Q) branch;', 'a weight generating block configured to determine pre-coding weights; a pre-coding block configured to perform pre-coding on at least one physical channel including the E-DPDCH by multiplying the pre-coding weights to a data stream on at least one physical channel or a combined data stream of multiple physical channels to generate a plurality of output streams, one output stream per antenna; and', 'a plurality of antennas for transmitting the output streams, wherein a pair of control channels carrying pilot sequences are transmitted for channel estimation, and either multiple E-DPDCH data streams are transmitted using multiple-input multiple-output (MIMO) or a single E-DPDCH data stream is', '-76-1400784-1 transmitted using a closed loop transmit diversity depending on E-DPDCH configuration.17. The WTRU of claim 16 wherein the physical channel on which the pre-coding is performed further includes at least one of an E-DCH dedicated physical control channel (E-DPCCH), a high speed dedicated physical control channel (HS-DPCCH), a dedicated physical channel (DPDCH), and a dedicated physical control channel (DPCCH).18. The WTRU of claim 16 wherein the pilot sequences carried on the pilot channels are orthogonal.19. The WTRU of claim 16 wherein the pilot channels are transmitted using a different channelization code.
20. The WTRU of claim 16 wherein a pre-coding weight matrix of the pre-coding weights is diagonal.', '-77-1400784-1']
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