Home > Technical Articles > B1 Measurement in NR

Introduction to B1 Measurement in NR

B1 measurement is a tool used in the telecom industry to evaluate radio coverage within the cell. B1 measurements relate the received signal power at the UE (terminal) side of the measurement, with respect to received reference signal power. The goal is to understand how far away from the base station are users when they experience certain quality of service or have insufficient access or coverage. B1 measurement is a test that measures the B1 strength of a radio channel, or “carrier-to-interference ratio” (C/I). This means how much strength it takes for the carrier signal to be heard over other signals and noise which are present on the channel. B1 measurements are quick, easy, and straightforward to carry out. The person or device doing the test does not need any specialized equipment. B1 measurement is set for the purposes of radio spectrum management.

B1 measurement purpose

The purpose of B1 measurement is to identify the use of radio frequencies by different types of users and determine their level of interference. It uses modulation, energy, and receiver characteristics to measure signal strength, quality and varying levels of co-channel interference which is essential in resolving any signals that may be causing problems with network performance. B1 is a measurement of the signal quality within an LTE-LAA system. B1 is measured at the eNB and indicates the signal quality that an UE would receive from a femtocell if it were connected to that femtocell. If a UE is not connected to the femtocell, it should receive approximately similar B1 measurements as if it were connected but with some packet loss due to deinterleaving and depacketization occurring in between the eNB and 3GPP core/network.

B1 measurement is used to account for flexible termination and auxiliary equipment that may use the B1 interface and therefore need to be taken into consideration when analyzing the B1 interface. B1 measurement is the accurate measurement of the attenuation (loss) of a coaxial cable or waveguide system. This can be done using an instrument such as a B1 energy meter/waveguide analyzer or B1 horn antenna/waveguide probe.

B1 measurement training

B1 measurement is used in New Radio (NR) B1 system design and verification. It is the authoritative source of information to support the development, implementation, verification and maintenance of B1 system performance over time. The goal of this training is to provide participants with an understanding of the B1 measurements that can be performed, where they are applicable and how they could be used during the development of an NR system or during post-deployment site-verification activities. B1 measurement is used for testing and measuring the B1 channel quality of a terminal. The objective of measurement is to check whether a terminal has proper contact with the base station and whether the terminal can receive or transmit data with high quality. The B1 Measurement course will introduce you to the radio frequency and network management fundamentals of the SIM RAN architecture. You will learn basic knowledge related to radio frequency measurement, radio access network measurements, performance modelling and prediction .B1 measurement is a critical test performed by a field technician to ensure that RF transmitters and receivers are working properly. The test is conducted during the commissioning phase of a system and again once it is placed into service, to ensure that it meets its performance requirements.

During the commissioning process, a technician takes a sample reading at each test point within the coverage footprint of an antenna array, then compares these readings against the predicted values based on the theoretical modeling done by engineers. Variations in actual values from predicted values can then be used to identify any equipment or environmental issues that need to be corrected before going into commercial operation.

You can find this topic in our prime membership telecom by following the link below: