Patent ID: 9331820
Filing Date: 2016-05-03
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A method for transmitting an uplink channel by a User Equipment (UE), the UE supporting a cross-carrier scheduling between a Frequency Division Duplex (FDD) cell and a Time Division Duplex (TDD) cell, the method comprising: receiving cross-carrier scheduling information; for the cross-carrier scheduling between the FDD cell and the TDD cell, determining an uplink (UL) reference configuration indicating an interval k receiving a UL grant through the FDD cell, the UL grant being transmitted in a first subframe of the FDD cell; transmitting, from the UE, a PUSCH associated with the UL grant through the TDD cell, the PUSCH being transmitted in a second subframe of the TDD cell; and receiving a PHICH associated with the PUSCH through the FDD cell, the PHICH being transmitted in a third subframe of the FDD cell, wherein the cross-carrier scheduling comprises at least one of a downlink cross-carrier scheduling and an uplink cross-carrier scheduling, wherein Physical Downlink Control Channel (PDCCH) and Physical Downlink Shared Channel (PDSCH) are transmitted through different downlink carriers in the downlink cross-carrier scheduling, and wherein a downlink carrier in which the PDCCH having a first UL grant is transmitted is different from a downlink carrier linked with an uplink carrier in which the PUSCH associated with the first UL grant is transmitted.