Method and apparatus for transmitting channel quality control information in wireless access system

摘要

Methods and devices for transmitting or receiving channel quality control information through a physical uplink shared channel (PUSCH) in a wireless access system that supports hybrid automatic retransmit request (HARQ) are discussed. The method in one embodiment performed by a user equipment (UE) includes receiving a physical downlink control channel (PDCCH) signal including an initial uplink grant, transmitting uplink data using two transport blocks based on the initial uplink grant, receiving a negative acknowledgement (NACK) information for one of the two transport blocks, and transmitting a channel quality control information along with the one of the two transport blocks which is retransmitted according to the NACK information or a new transport block through the PUSCH to which the HARQ is applied. A number of coded symbols required to transmit the channel quality control information (Q′) is calculated based on the initial uplink grant.

主权项

1. A method for transmitting channel quality control information through a physical uplink shared channel (PUSCH) in a wireless access system that supports hybrid automatic retransmit request (HARQ), the method performed by a user equipment (UE) and comprising:
receiving a physical downlink control channel (PDCCH) signal including an initial uplink grant; transmitting uplink data using two transport blocks based on the initial uplink grant; receiving a negative acknowledgement (NACK) information for one of the two transport blocks; and transmitting a channel quality control information along with the one of the two transport blocks which is retransmitted according to the NACK information and a new transport block through the PUSCH to which the HARQ is applied, wherein a number of coded symbols, Q′, required to transmit the channel quality control information is calculated based on the initial uplink grant, wherein the initial uplink grant includes information MscPUSCH-initial(x) on the number of subcarriers for a transport block for transmitting the channel quality control information, information C(x) on a number of code blocks related to the transport block for transmitting the channel quality control information, and information Kr(x) on the size of the code blocks, and wherein ‘x’ denotes an index of the transport block for transmitting the channel quality control information.