Downlink power distributions for 2G and 3G mobile communication networks.

Radiation protection dosimetry · 2013 · Unclear · Insufficient evidence

← Research stream

UnclearInsufficient evidencePaper 4592

Study snapshot

PublicationRadiation protection dosimetry · 2013

Study typeexposure_assessment

Reported directionUnclear

Evidence ratingInsufficient

Abstract

Knowledge of realistic power levels is key when conducting accurate EMF exposure assessments. In this study, downlink output power distributions for radio base stations in 2G and 3G mobile communication networks have been assessed. The distributions were obtained from network measurement data collected from the Operations Support System, which normally is used for network monitoring and management. Significant amounts of data were gathered simultaneously for large sets of radio base stations covering wide geographical areas and different environments. The method was validated with in situ measurements. For the 3G network, the 90th percentile of the averaged output power during high traffic hours was found to be 43 % of the maximum available power. The corresponding number for 2G, with two or more transceivers installed, was 65 % or below.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeexposure_assessment

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureRF

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

Downlink output power distributions for 2G and 3G base stations were derived from Operations Support System network measurement data and validated with in situ measurements. For 3G, the 90th percentile of averaged output power during high traffic hours was 43% of maximum available power; for 2G with two or more transceivers installed, the corresponding value was 65% or below.

Outcomes measured

Downlink output power distributions for 2G and 3G radio base stations
90th percentile of averaged output power during high traffic hours (3G and 2G)
Validation of method using in situ measurements

View raw extracted JSON

{
  "study_type": "exposure_assessment",
  "exposure": {
    "band": "RF",
    "source": "base station",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Downlink output power distributions for 2G and 3G radio base stations",
    "90th percentile of averaged output power during high traffic hours (3G and 2G)",
    "Validation of method using in situ measurements"
  ],
  "main_findings": "Downlink output power distributions for 2G and 3G base stations were derived from Operations Support System network measurement data and validated with in situ measurements. For 3G, the 90th percentile of averaged output power during high traffic hours was 43% of maximum available power; for 2G with two or more transceivers installed, the corresponding value was 65% or below.",
  "effect_direction": "unclear",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "EMF exposure assessment",
    "downlink",
    "output power distribution",
    "2G",
    "3G",
    "radio base station",
    "Operations Support System",
    "network measurement data",
    "in situ measurements",
    "traffic hours"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.1,
      "reason": "Base-station power data may inform exposure assessment, but no occupational setting is explicitly described."
    }
  ]
}

AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1093/rpd/nct169
PubMed: 23850982

Read the original paper →

Related papers

← Back to the Research Library