Patent ID: 8837389

Claim:
A method for handling semi-persistent transmission resources in a network terminal of a wireless communication system that supports carrier aggregation and semi-persistent scheduling (SPS), the method comprising: establishing a radio resource control (RRC) connection with a user equipment (UE) via a primary cell containing an uplink carrier for transmission from the UE and a downlink carrier for reception by the UE; configuring a plurality of downlink carriers to the UE via a first RRC message; providing an SPS configuration to the UE via a second RRC message, wherein the SPS configuration includes configuration information only applicable to the primary cell; and transmitting a physical downlink control channel (PDCCH) signaling addressed to an SPS Cell radio network temporary identifier (SPS C-RNTI) of the UE only on the downlink carrier of the primary cell, wherein the PDCCH signaling instructs the UE to configure or reconfigure an SPS resource to the UE or to trigger an SPS retransmission.