RELAY BACKHAUL UPLINK HARQ PROTOCOL

摘要

The present invention relates to a method for configuring a retransmission protocol on the uplink between a network node and a relay node in a mobile communication system, the configuration being performed at a network node or at a relay node, and to the corresponding relay node apparatus and network node apparatus capable of configuring the retransmission protocol. In particular, the number of transmission processes is determined based on the position of time intervals available for the transmission and may be selected in order to control the round trip time of the retransmission protocol. Once the number of transmission processes has been configured, the transmission processes are mapped on the available time intervals in a predefined order and repetitively.

主权项

1. A repeat request method comprising:
selecting, in a frame for communication, a plurality of subframes available for uplink data transmission from a relay node to an eNodeB; receiving an indicator that indicates a number of HARQ processes from the eNodeB, wherein the HARQ process is a processing unit of Hybrid Automatic Repeat Request (HARQ); mapping the indicated number of HARQ processes sequentially onto the selected plurality of subframes; and transmitting the frame including the plurality of subframes on which the indicated number of HARQ processes are mapped.