Patent ID: 9713149
Date: 2017-07-18
CPC Classifications: H04L,H04W

Claim:
1. In a wireless communications system including a user equipment (UE) supporting frequency division duplex (FDD)-time division duplex (TDD) carrier aggregation (CA), a first access node operable to communicate with the UE on a first duplex mode carrier, and a second access node operable to communicate with the UE on a second duplex mode carrier, a method implemented in the first access node, the method comprising: transmitting, to the UE, first radio resource control (RRC) signalling for data transmission through the first access node on the first duplex mode carrier as a primary component carrier (PCell); transmitting, to the UE after transmitting the first RRC signalling, second RRC signalling on the PCell for data transmission through the second access node on the second duplex mode carrier as a secondary component carrier (SCell); scheduling downlink data transmission on the PCell and the SCell via network backhaul; and informing the UE of downlink data transmission on the PCell and the SCell using a first duplex mode downlink control information (DCI) format, wherein, in processing the first duplex mode DCI format, the UE assumes that a DCI format of the same size received on the PCell provides downlink scheduling and uplink scheduling for the PCell and SCell.