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TechSpec
  • Foreword
  • 1 Scope
  • 2 General
  • 3 Handover
  • 4 RF power control
  • 5 Radio link failure
  • 6 Idle mode tasks
  • 7 Network pre-requisites
  • 8 Radio link measurements
  • 9 Control parameters
  • 10 GPRS mode tasks
  • 11 CTS mode tasks
  • 12 COMPACT Mode Tasks
  • A.1 Scope
  • A.2 Functional requirement
  • A.3 BSS pre-processing and threshold comparisons
  • A.4 BSS decision algorithm
  • A.5 Channel allocation
  • A.6 Handover decision algorithm in the MSC
  • B.1 Open loop control
  • B.2 Closed loop control
  • B.3 Quality based control.
  • B.4 BTS power control
  • B.5 Example
  • B.6 Interworking between normal and fast power control for ECSD
  • B.7 Interworking between normal and enhanced power control (EPC)

A.5 Channel allocation

3GPP45.008GSM/EDGE Radio subsystem link controlTS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

As described in 3GPP TS 48.008 the available channels shall be divided into five interference categories whose limits O‑X5 are adjusted by O&M command.

For handover, the channel allocated should be from the category with the lowest interference level, since determination of the expected value of C/I is not possible by the new BSS.