A Fast Self-Planning Approach for Fractional Uplink Power Control Parameters in LTE Networks

Abstract

Uplink Power Control (ULPC) is a key feature of mobile networks. Particularly, in LTE, Physical Uplink Shared Channel (PUSCH) performance strongly depends on Uplink Power Control configuration. In this work, a methodology for the self-planning of uplink Fractional Power Control (FPC) settings is presented. Values for nominal power and channel path-loss compensation factor are proposed. The method is designed for the planning and operational (replanning) stages. A very fast solution for FPC setting can be achieved by the combination of several simple solutions obtained by assuming some simplifications. First, the FPC planning problem is formulated analytically on a cell basis through the combination of multiple regular scenarios built on a per-adjacency basis from a live scenario. Secondly, detailed inspection of the FPC parameter values aims to identify the most important variables in the scenario impacting optimal FPC settings. Finally, regression equations can be built based on those key variables for a simple FPC parameter calculation, so computational costs are extremely reduced. Results show that network performance with the proposed FPC parameter settings is good when compared with typical FPC configurations from operators.

Self-Planning of Base Station Transmit Power for Coverage and Capacity Optimization in LTE

“…Then, the difference in the total system SINR, ΔΓ ( ), from each individual power change is computed by subtracting the values with the default and the new power plan. Such differences should coincide with the values of for the different cells, ( ), estimated from network performance data obtained with the default plan as in (9).…”

“…In LTE, fractional power control is used in the UpLink (UL) to dynamically change UE transmit power [5]. Moreover, several self-planning methods have been proposed to adapt UpLink Power Control (ULPC) parameters in LTE to local network conditions [6][7][8][9][10]. However, for the downlink (DL) of LTE, power planning is the simplest solution to solve CCO issues in the absence of a power control scheme.…”

On Energy Efficient Resource Allocation in Shared RANs: Survey and Qualitative Analysis

“…Research in the area of SON, especially in HetNets, has attracted the attention of a large segment of research community. The contributions of the research efforts have spanned different challenges, including identifying SON challenges [43]- [45], proposing algorithms in support of a given self-function [46]- [49]. In [46], authors discussed the notion of cloud coverage, provided by densely deployed self-organized small cells under-laying the macro-cell.…”

Evaluation of the Impact of Obstacles on the Capacity of a LTE Network in Urban Area in the Uplink

“…It allows mobile terminals (MS) to partially correct their path loss, thus promoting dynamic changes in transmission power (Buenestado et al, 2017). On this analysis, Fernández-Segovia et al (2015) developed a selfplanning approach method for Fractional Power Control (FPC) parameters by evaluating the nominal PUSCH power p-0 and the trajectory loss compensation α (Fernández-Segovia et al, 2016).…”