METHOD AND ARRANGEMENT IN A COMMUNICATION NETWORK SYSTEM

摘要

The object of the present invention is to provide a mechanism for improving RACH performance. The object is achieved by a method in a user equipment (140) for random accessing the user equipment (140) to a base station (120). The user equipment (140) and the base station (120) are comprised in a communication network system (110). An acknowledgement to send a message to the network node (110,120) is received (203,301) from a network node (110,120) comprised in the communication network system (100). The user equipment then sends (204,302) the message to the network node (110,120) using Hybrid Automatic Retransmission reQuest HARQ being in a CELL_FACH state.