US 9,319,205 B2 · Method and apparatus for performing cross-carrier scheduling for SPS

Abstract

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus in which a base station transmits a signal to a relay in a wireless communication system. A method in which a terminal receives a downlink signal in a wireless communication system that supports carrier aggregation comprises: a step of receiving, on a first carrier, a physical downlink control channel (PDCCH) having no carrier indication information; and a step of receiving a physical downlink shared channel (PDSCH) using the scheduling information carried on the PDCCH, wherein the PDSCH is received on the first carrier in the event the PDCCH is a non-semi-persistent scheduling (SPS) PDCCH, and the PDSCH is received on a second carrier different from the first carrier in the event the PDCCH is an SPS PDCCH.

Claims4

Dependent claims

A method of receiving a downlink signal by a user equipment (UE) in a carrier aggregation supportive wireless communication system, the method comprising:

receiving a semi-persistent scheduling (SPS) physical downlink control channel (PDCCH) having no carrier indication (CI) information via a first carrier among a plurality of carriers,
determining whether or not a SPS retransmission is in progress, and
if the SPS retransmission is not in progress on all of the plurality of carriers, reactivating a SPS transmission on a second carrier on which the SPS transmission has been performed most recently among the plurality of carriers,
wherein the second carrier is different from the first carrier which carries the SPS PDCCH.

1 more element

Dependencies are inferred from the claim text.

Method and apparatus for performing cross-carrier scheduling for SPS

Life of this patent

Method and apparatus for performing cross-carrier scheduling for SPS

Life of this patent

Abstract

Claims4