Method and apparatus for use of space time trellis codes based on channel phase feedback

An apparatus for wireless communication comprising:

• means for generating inner and outer codes based on channel state information available at a transmitter which are high-performance trellis codes;
• means for concatenating different inner codes with different outer codes;
• and
• means for using the generated inner and outer codes for wireless communication;
• where the means for generating inner and outer codes based on channel state information available at a transmitter which are high-performance trellis codes comprises means for generating space-time trellis codes by performing set partitioning on a plurality of classes of signal designs to generate a series of inner codes, each of the series of inner codes being optimized by channel phase feedback, and means for concatenating each inner code with a multiple trellis coded modulated (M-TCM) outer code to provide a complete space-time trellis code as a cophase space-time trellis code.

A method for wireless closed-loop communication in a communication apparatus including at least one transmitter and receiver comprising:

• generating quantized channel phase information in a computer for a fading channel at a receiver in the communication apparatus;
• feeding back the quantized channel phase information to the transmitter in the communication apparatus,
• generating an inner code in the computer by selection of one from a plurality of inner codes generated in the computer using the feedback of the quantized channel phase information from the communication apparatus, each of the plurality of inner codes being optimized by channel phase feedback of the communication apparatus;
• generating cophase space-time trellis codes in the computer by concatenating a selected inner code and an outer code provided to a transmitter in the communication apparatus, where the outer code is generated by multiple trellis code modulation in the computer;
• providing coding gain for improved space-time transmission by the communication apparatus;
• transmitting the generated concatenated inner and outer codes in the communication apparatus;
• receiving the generated concatenated inner and outer codes at the receiver in a computing circuit from which receiver the quantized channel phase information was generated;
• and
• decoding the received concatenated inner and outer codes in the computing circuit at the receiver.

An apparatus for wireless closed-loop communication comprising:

• a transmitter with a transmit antenna;
• and
• a receiver with a receive antenna;
• where the receiver is configured to generate quantized channel phase information for a fading channel between the receiver and transmitter, which quantized channel phase information is fed back to the transmitter,
• where the transmitter includes a means for generating a plurality of inner codes and where the means selects one of a plurality of inner codes using the feedback of the quantized channel phase information, where the means optimizes each of the plurality of inner codes by channel phase feedback of the communication apparatus and where the means generates cophase space-time trellis codes by concatenating a selected inner code and an outer code at a transmitter, where the means generates outer code by multiple trellis code modulation, where the means provides coding gain to improve space-time transmission, and where the transmitter transmits selected inner and outer codes to the receiver where the received codes are decoded.