Method of operating an HARQ buffer for a dynamic sub-frame change and an apparatus for same

摘要

The present invention relates to a method of supporting a Hybrid Automatic Repeat and request (HARQ) scheme of a reception end for supporting a dynamic resource change in a wireless communication system. In particular, the method includes the steps of receiving a change message for changing a currently applied first subframe setting to a second subframe setting from a transmission end, and transmitting and receiving a signal to and from the transmission end according to the second subframe setting, wherein a plurality of subframe settings including the first and second subframe settings are divided into one or more groups, the first and second subframe settings belongs to an identical group, and the HARQ scheme is applied according to the group-specific maximum number of HARQ processes and a soft buffer size for each HARQ process when the subframe setting is changed according to the change message.

主权项

1. A method of applying a Hybrid Automatic Repeat and request (HARQ) scheme at a reception end supporting a dynamic resource change in a wireless communication system, the method comprising:
configuring two or more groups from a plurality of Time Division Duplex (TDD) Uplink/Downlink (UL/DL) subframe configurations, wherein each of the plurality of TDD UL/DL subframe configurations has a corresponding maximum number of HARQ processes; receiving control information for changing a currently applied first TDD UL/DL subframe configuration to a second TDD UL/DL subframe configuration from a transmission end, wherein the first and second subframe configurations belong to a same group; and applying the HARQ scheme in accordance with a group-specific maximum number of HARQ processes regardless of a maximum number of HARQ processes corresponding to the second TDD UL/DL subframe configuration.