UCI for carrier aggregation
Embodiments relates to a user equipment for wireless communication; the user equipment comprising logic to: allocate a first resource for transmitting a physical uplink shared channel (PUSCH); process received signalling comprising an indication of an Acknowledgement/Negative Acknowledgement (ACK/NACK) resource mapping mode on the PUSCH; and determine resource elements for transmitting ACK/NACK information based, at least in part, on the first resource block for transmitting the PUSCH and the received ACK/NACK resource mapping mode on the PUSCH; and transmit the ACK/NACK information on the determined resource elements.
1. One or more non-transitory, computer-readable media having instructions that, when executed by one or more processors, cause a user equipment (UE) to:
allocate a first resource block for transmitting a Physical Uplink Shared Channel (PUSCH);
process received signalling that includes an indication of an Acknowledgement/Negative Acknowledgement (ACK/NACK) resource mapping mode on the PUSCH;
determine resource elements for transmitting ACK/NACK information based, at least in part, on the first resource block for transmitting the PUSCH and the ACK/NACK resource mapping mode on the PUSCH; and
transmit the ACK/NACK information on the determined resource elements,
wherein the received signalling includes a radio resource control (RRC) message or downlink control information, wherein to transmit the ACK/NACK information, the UE is to:
transmit the ACK/NACK information on the resource elements within four symbols adjacent to an Uplink Reference Signal (UL RS) having an upper bound of 4 discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) symbols within the PUSCH in the first resource block for transmitting the PUSCH when the ACK/NACK resource mapping mode corresponds to a first ACK/NACK resource mapping mode on the PUSCH; and transmit the ACK/NACK information on the resource elements within one or more than one prescribed resource that is adjacent, in a frequency domain, to the first resource block for transmitting the PUSCH when the ACK/NACK resource mapping mode on the PUSCH corresponds to a second ACK/NACK resource mode mapping on the PUSCH, wherein the one or more than one prescribed resource is within a physical resource block (PRB) adjacent to a highest-indexed PRB associated with PUSCH data of the PUSCH.
2. The one or more non-transitory, computer-readable media of claim 1 , wherein the instructions, when executed, further cause the user equipment to report ACK/NACK information using resource elements of said resources other than the first resource block to transmit the PUSCH.
3. The one or more non-transitory, computer-readable media of claim 1 , wherein to determine resource elements for transmitting the ACK/NACK information, the user equipment is to allocate resource elements having a predetermined disposition relative to the first resource block to transmit the PUSCH for simultaneous uplink transmission using a common or single Discrete Fourier Transform (DFT).
4. The one or more non-transitory, computer-readable media claim 3 , wherein the instructions, when executed, further cause the user equipment to determine a number of component carriers associated with received signals; and to allocate resource elements to transmit the ACK/NACK information having said predetermined disposition relative to the first resource block is responsive to the number of component carriers comprising more than five component carriers.