Method for multiplexing uplink control information on a physical uplink shared channel
View Patent ↗A method of selecting resource element for UCI transmission and countering a ping-pong effect includes adjusting transmission parameters without adjusting a channel quality indicator/pre-coding matrix index. The transmission parameters include a modulation coding set of a transport block and a transport block size. Another method of selecting resource element for UCI transmission and countering the ping-pong effect includes selecting a transport block having a highest modulation coding set index or the transport block having a lowest modulation coding set index. Alternatively, the evolved Node B may select the transport block having a largest size or the transport block having the smallest size.
1. A method of selecting a code word to transmit a channel quality indicator/pre-coding matrix index (CQI/PMI) in a wireless system having user equipment in a single user-multiple input multiple output mode, the method comprising:
selecting, by the user equipment, a transport block from among a plurality of transfer blocks, wherein:
the transport block is configured to transmit the channel quality indicator/pre-coding matrix index using virtual unit sequences that can be processed through channel coding, including;
in the case a first code word is disabled by a physical downlink control channel, multiplexing the CQI/UPMI on a second code word's corresponding transport block; and
in the case the first code word is enabled only for uplink control information (UCI) transmission, transmitting the CQI/PMI on the second code word's corresponding transport block, and transmitting data on a third code word's corresponding transport block.
2. The method of claim 1 , wherein the plurality of transfer blocks have the same modulation coding set.
3. The method of claim 1 , wherein the plurality of transfer blocks have the same transport size.
4. A system of selecting a code word to transmit a channel quality indicator/pre-coding matrix index (CQI/PMI) in a wireless system having user equipment in a single user-multiple input multiple output mode, the system comprising:
a circuit for selecting, by the user equipment, a transport block of at least two transfer blocks, wherein:
the transport block is configured to transmit the channel quality indicator/pre-coding matrix index using virtual unit sequences that can be processed through channel coding, including:
in the case a first code word is disabled by a physical downlink control channel, multiplexing the CQI/PMI on a second code word's corresponding transport block; and
in the case the first code word is enabled only for uplink control information (UCI) transmission, transmitting the CQI/PMI on the second code word's corresponding transport block, and transmitting data on a third code word's corresponding transport block.
5. The system of claim 4 , wherein the at least two transfer blocks have the same modulation coding set.
6. The system of claim 4 , wherein the at least two transfer blocks have the same transport size.
7. A method of combining uplink control information and data of different layers belonging to one transport block, the method comprising:
multiplexing, on a physical downlink control channel, sequences of uplink control information and data of different layers, as a virtual unit sequence of new data; and
interleaving the virtual unit sequence of new data with sequences of at least one of an acknowledgement/negative acknowledgement code, a rank indicator, and new data, as a virtual unit sequence with length C*R read column-by-column, where C represents a number of sub-carriers used and R represents a single-carrier frequency division multiple access (SC-FDMA).