# US 2014/0153668 A1 · Method and apparatus for multi-antenna transmission in uplink

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- Number: US 2014/0153668 A1
- Document ID: US20140153668A1
- Status: Published application
- Kind: A1
- Application number: 14/172,615
- Filed: 2014-02-04
- Published: 2014-06-05
- Earliest claimed: 2009-09-30
- Assignees: InterDigital Patent Holdings, Inc.
- Applicants: Interdigital Patent Holdings, Inc.
- Inventors: Fengjun Xi; Lujing Cai; Hong Zhang; Benoit Pelletier
- Web page: https://patentgrep.com/patent/US20140153668A1

## CPC

- H04L 1/0625: {Transmitter arrangements}
- H04B 7/0404: the mobile station comprising multiple antennas, e.g. to provide uplink diversity
- H04B 7/0456: Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B 7/06: at the transmitting station
- H04B 7/0617: {for beam forming}
- H04B 7/0623: {Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information}
- H04B 7/0669: {using different channel coding between antennas (space-time coding H04L1/0618)}
- H04L 1/0668: {Orthogonal systems, e.g. using Alamouti codes}
- H04L 27/362: {Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated (H04L27/366 takes precedence)}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION

## 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.

## Claims

### Claim 1

A method implemented in a wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the method comprising:
processing at least one enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH), a first dedicated physical control channel (DPCCH), and a second DPCCH to generate a first data stream and a second data stream;
applying pre-coding weights to the generated first data stream and the second data stream; and
transmitting the first data stream and the second data stream via a plurality of antennas.

### Claim 2 (depends on 1)

The method of claim 1 wherein the first stream and the second stream carry a same pilot sequence

### Claim 3 (depends on 1)

The method of claim 1 wherein the first stream and the second stream are transmitted using different channelization codes.

### Claim 4 (depends on 1)

The method of claim 1 wherein the first data stream includes at least one of an E-DCH dedicated physical control channel (E-DPCCH), a high speed dedicated physical control channel (HS-DPCCH), or a dedicated physical data channel (DPDCH).

### Claim 5 (depends on 1)

The method of claim 1 wherein a pre-coding weight matrix of the pre-coding weights is diagonal.

### Claim 6

A wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the WTRU comprising:
a physical layer processing block configured to process at least one enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH), a first dedicated physical control channel (DPCCH), and a second DPCCH to generate a first data stream and a second data stream;
a pre-coding block configured to apply pre-coding weights to the generated first data stream and the second data stream; and
a plurality of antennas for transmitting the first data stream and the second data stream.

### Claim 7 (depends on 6)

The method of claim 6 wherein the first stream and the second stream carry a same pilot sequence

### Claim 8 (depends on 6)

The method of claim 6 wherein the first stream and the second stream are transmitted using different channelization codes.

### Claim 9 (depends on 6)

The WTRU of claim 6 wherein the first data stream includes at least one of an E-DCH dedicated physical control channel (E-DPCCH), a high speed dedicated physical control channel (HS-DPCCH), or a dedicated physical data channel (DPDCH).

### Claim 10 (depends on 6)

The WTRU of claim 6 wherein a pre-coding weight matrix of the pre-coding weights is diagonal.