Techniques for outer loop management in a multiple output system

An apparatus for maintaining quality of service of a multiple output (MO) communication system, comprising:

• means for decoding, at a user equipment (UE), a downlink data transmission;
• means for determining, over each of multiple streams, whether to transmit an acknowledge (ACK) or a negative acknowledge (NACK) message to a base station based on a result of the decoding, wherein the multiple streams include a single stream and two dual streams, and wherein the two dual streams include a primary stream and a secondary stream;
• means for calculating a signal noise ratio (SNR) value for adjusting each of the multiple streams based on the determining;
• means for mapping the calculated SNR value associated with the single stream to a first channel quality indicator (CQI) value;
• means for mapping the calculated SNR value associated with the two dual streams to a second CQI value, wherein the second CQI value is a single value for the two dual streams;
• and
• means for transmitting the first CQI value and the second CQI value to the base station.

A non-transitory computer-readable medium storing computer executable code for maintaining quality of service of a multiple output (MO) communication system, comprising:

• code for decoding, at a user equipment (UE), a downlink data transmission;
• code for determining, over each of multiple streams, whether to transmit an acknowledge (ACK) or a negative acknowledge (NACK) message to a base station based on a result of the decoding, wherein the multiple streams include a single stream and two dual streams, and wherein the two dual streams include a primary stream and a secondary stream;
• code for calculating a signal noise ratio (SNR) value for adjusting each of the multiple streams based on the determining;
• code for mapping the calculated SNR value associated with the single stream to a first channel quality indicator (CQI) value;
• code for mapping the calculated SNR value associated with the two dual streams to a second CQI value, wherein the second CQI value is a single value for the two dual streams;
• and
• code for transmitting the first CQI value and the second CQI value to the base station.

An apparatus for maintaining quality of service of a multiple output (MO) communication system, comprising:

• a memory;
• a processor coupled to the memory and configured to:
• decode, at a user equipment (UE), a downlink data transmission;
• determine, over each of multiple streams, whether to transmit an acknowledge (ACK) or a negative acknowledge (NACK) message to a base station based on a result of the decoding, wherein the multiple streams include a single stream and two dual streams, and wherein the two dual streams include a primary stream and a secondary stream;
• calculate an SNR value for adjusting each of the multiple streams based on the determining;
• map the calculated SNR value associated with the single stream to a first CQI value;
• and
• map the calculated SNR value associated with the two dual streams to a second CQI value, wherein the second CQI value is a single value for the two dual streams;
• and a transceiver configured to transmit the first CQI value and the second CQI value to the base station.