Method and an apparatus in a user equipment for controlling transmission power of the user equipment

摘要

Disclosed are methods and apparatuses in user equipments (1400) and network nodes (1410, 420) for controlling transmission power of the user equipments when the user equipments are connected to a wireless network. The disclosed methods and apparatuses deals with independently controlling transmission power of SRS signals and signals comprising traffic data from the user equipment (1400). Thereby, it is possible to use different power levels for SRS signals intended to e.g. a macro node and for traffic data intended to e.g. a pico node.

主权项

1. A method, in a user equipment, for controlling transmission power of the user equipment when the user equipment is connected to a wireless network, the method comprising:
receiving first closed-loop power control data, from a first network node, corresponding to transmission of data from the user equipment to the first network node; controlling transmission power for transmission of data to the first network node based on the received first closed-loop power control data; receiving second closed-loop power control data, from a second network node, corresponding to transmission of sounding reference signals (SRS) from the user equipment to the second network node, said second power control data being generated independently from said first power control data; controlling transmission power for transmission of SRS, to the second network node based on the received second closed-loop power control data; wherein the first network node and the second network node are separate network nodes.