Patent ID: 8194575
Filing Date: 2012-06-05
Classification: H04W

Abstract:
1. A method in a first communication device within a Long Ten Evolution communications network for calculating a random access transmission power to be used by the first communication device comprising the steps of: receiving data from a second communication device on a radio channel indicating a random access reception power level; determining a desired random access reception power level of the second communication device based on the received data and a parameter of random access configuration that influences a detection performance of a random access at the second communication device, wherein the parameter comprises at least one of a preamble format and a basic cyclic shift value of a preamble; and calculating the random access transmission power to be used based on the desired random access reception power level and a power ramping increasing the random access transmission power based on a transmission attempt number, and also taking into account power path loss between the first communication device and the second communication device, wherein: P P P P Δ N comprises the transmission attempt number; Δ P