Multiplexing control and data information from a user equipment in a physical data channel
Methods and apparatus are described for a User Equipment (UE) to transmit HARQ-ACK information in a Physical Uplink Shared CHannel (PUSCH) in response to a reception of at least one Transport Block (TB) when the UE is configured by a base station with multiple DownLink (DL) Component Carriers (CCs), for selecting a single PUSCH for transmitting of Uplink Control Information (UCI), when the UE has multiple PUSCH transmissions, for improving the reliability of the HARQ-ACK reception when it is encoded using a block code relative to when it is encoded using the repetition code, and for applying transmission diversity to the HARQ-ACK transmission in a PUSCH.
1. A method for a user equipment (UE) to transmit, to a base station, acknowledgement information, the method comprising the steps of:
receiving, from the base station, at least one scheduling assignment corresponding to at least one carrier, wherein N carriers are configured by the base station through radio resource control signaling, each of the N carriers is associated with a transmission mode (TM), and the TM relates to a maximum number of transport blocks (TBs) transmitted in a physical downlink shared channel (PDSCH);
generating, by the UE, N+M acknowledgement bits in response to reception of at least one TB in the at least one carrier among the N carriers;
ordering, by the UE, the N+M acknowledgement bits in a codeword based on indices of the N carriers,
encoding the codeword, wherein a method of the encoding is determined based on a number of the generated N+M acknowledgement bits; and
transmitting the codeword in a physical uplink shared channel (PUSCH),
wherein M is a number of carriers supporting 2 TBs on the PDSCH, and
wherein N−M is a number of second carriers supporting one TB on the PDSCH.
2. The method of claim 1 , wherein the base station configures, to the UE, the N carriers and the TM for each of the at least one carrier, through the radio resource control signaling.
3. The method of claim 1 , wherein the UE receives the PDSCH in a subset of the N carriers.
4. A user equipment (UE) for transmitting acknowledgement information to a base station, the UE comprising:
a receiver configured to receive, from the base station, at least one scheduling assignment corresponding to at least one carrier, wherein N carriers are configured by the base station through radio resource control signaling, each of the N carriers is associated with a transmission mode (TM), and the TM relates to a maximum number of transport blocks (TBs) transmitted in a physical downlink shared channel (PDSCH);
a generator configured to generate N+M acknowledgement bits in response to reception of at least one TB in the at least one carrier among the N carriers;
an alignment unit configured to order the N+M acknowledgement bits in a codeword based on indices of the N carriers;
an encoder configured to encode the codeword, wherein a method of the encoding is determined based on a number of the generated N+M acknowledgement bits; and
a transmitter configured to transmit the codeword in a physical uplink shared channel (PUSCH),
wherein M is a number of carriers supporting 2 TBs on the PDSCH,
wherein N−M is a number of second carriers supporting one TB on the PDSCH.
5. The UE of claim 4 , wherein the base station configures, to the UE, the N carriers and the TM for each of the at least one carrier, through the radio resource control signaling.
6. The UE of claim 4 , wherein the UE receives the PDSCH in a subset of the N carriers.
7. The UE of claim 4 , wherein if only one TB is received in a carrier supporting a maximum of 2 TBs, the UE generates a negative acknowledgement for the other TB of the 2 TBs.
8. The method of claim 1 , wherein if only one TB is received in a carrier supporting a maximum of 2 TBs, the UE generates a negative acknowledgement for the other TB of the 2 TBs.