Patent ID: 9504037
Filing Date: 2016-11-22
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. An uplink transmission method, comprising: transmitting a first acknowledgement/negative-acknowledgement (ACK/NACK) for downlink transmission of a primary cell (P-cell) to the P-cell through a first uplink ACK/NACK channel by a user equipment (UE); and transmitting a second ACK/NACK for downlink transmission of a first secondary cell (S-cell) to the first S-cell through a second uplink ACK/NACK channel by the UE, wherein the first uplink ACK/NACK channel is a channel assigned to an uplink frequency bandwidth of the P-cell, wherein the second uplink ACK/NACK channel is a channel assigned to an uplink frequency bandwidth of the first S-cell, wherein at least one of the first uplink ACK/NACK channel and the second uplink ACK/NACK channel is an ACK/NACK semi-persistent scheduling (SPS) uplink channel semi-persistently assigned by a base station, wherein the ACK/NACK SPS uplink channel is an ACK/NACK SPS physical uplink shared channel (PUSCH) or an ACK/NACK SPS physical uplink shared channel (PUCCH) assigned to an uplink data region, wherein the P-cell and the first S-cell have been carrier-aggregated, and wherein the first S-cell is activated by the P-cell, wherein the first S-cell is set to a target cell and an uplink cell, wherein the target cell is a cell that transmits an aggregation ACK/NACK signal obtained by aggregating an ACK/NACK signal for downlink transmission to an uplink channel of the uplink cell, and wherein the uplink cell is a cell that transmits the aggregation ACK/NACK signal.