User Equipment, Network Node and Methods Therein for Handling Preamble Transmissions on a Random Access Channel in a Radio Communications Network

摘要

The embodiments herein relate to a user equipment (121) and a method performed by the UE (121) for performing preamble transmissions, on a random access channel, to a network node (110). The method comprising: determining (801) a starting subframe for the preamble transmissions based on at least a system frame number (SFN), a number of times (R) the preamble transmissions is to be repeated and a random access channel configuration, and transmitting (802), to the network node (121) the preamble repeatedly starting in the determined starting subframe. The embodiments herein also relate to a network node (110) and a method performed by the network node (110).

主权项

1. A method performed by a user equipment, UE, for performing preamble transmissions, on a random access channel, to a network node, the method comprising:
determining a starting subframe for the preamble transmission(s) based on at least:
a system frame number, SFN, received from the network node;a number of times, R, the preamble transmission is to be repeated;a random access channel configuration and transmitting, to the network node, the preamble repeatedly starting in the determined starting subframe.