Method and apparatus for transceiving data via a contention-based physical uplink data channel

摘要

Disclosed are a method and apparatus for transceiving data via a contention based physical uplink data channel. A terminal apparatus, which transmits data via a contention based physical uplink data channel, comprises: a transmitter which transmits data via a contention based physical uplink data channel and scheduling request information via a scheduling request channel simultaneously or consecutively to a base station; a receiver which receives a physical hybrid-ARQ indicator channel (PHICH) or an uplink (UL) grant message from the base station; and a processor which decodes the physical hybrid-ARQ indicator channel (PHICH) or the uplink (UL) grant message to determine whether an ACK signal or a NACK signal is indicated. Here, the scheduling request channel can be a specific channel allocated to the terminal apparatus so as to discriminate the terminal from other terminal apparatuses.

主权项

1. A method for receiving data by a base station (BS) through a contention based physical uplink data channel, the method comprising:
receiving, by the BS from one or more user equipment, data through the contention based physical uplink data channel and scheduling request information through a scheduling request channel, the scheduling request channel being separately allocated to each of the one or more user equipment; decoding, by the BS, the received data; and if the received data are successfully decoded, transmitting, through an uplink grant message including uplink resource allocation information or through a physical hybrid-ARQ indicator channel (PHICH), an ACK signal to the one or more user equipment which transmitted the scheduling request information, wherein a position of a resource to which the PHICH is mapped is determined based on at least one of
a cyclic shift value of a demodulation reference signal included in the contention based physical uplink data channel, ora physical resource block (PRB) index of the contention based physical uplink data channel.