name: ACIR
full_form: Adjacent Channel Interference Ratio
context: stored RFCI allocation for the same bearer established with the source HNB. The HNB-GW performs the following functions: - RFCI Mapping function: If the allocated RFCI index (s) does not match with the existing RFCI index(s) for the corresponding data rates, then the HNB-GW performs the RFCI Mapping function. That is, for every subsequent Iu UP frame upon the relocation, the HNB-GW maps the RFCI indices of the incoming side (from the HNB) to the corresponding RFCI indicates to the outgoing side (towards the MSC that is already stored in the HNB-GW) and vice versa. - In case Iu UP version 1, if the maximum rate indicated by the target HNB in the Iu UP INIT is different from the current used maximum rate then the HNB-GW initiates a Rate Control PDU indicating the new maximum rate to the MSC.
description: The Adjacent Channel Interference Ratio (ACIR) is a metric used to assess the performance of wireless communication systems, specifically in scenarios where multiple carriers are allocated adjacent to each other. It measures the ratio of the power transmitted on the desired channel to the power transmitted on an adjacent channel, providing insight into the potential for interference between channels.
explanation: The context provided highlights ACIR as a key performance indicator (KPI) used in evaluating the impact of different carrier configurations and spacings on the overall system performance. The discussion around ACS values, ACLR effects, and the presentation of specific ACIR values for various GSM carrier separations further solidify its role as a measurement tool in telecommunications.
section_title: 4.2.7.2.2	Results
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biotag_Description: O,B-Measurement,I-Measurement,I-Measurement,I-Measurement,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O