## 5 Evaluation of the Use of Assessment Templates
### Test Scenario Execution for 5G Communication  
An evaluation of the cellular coverage at the test site is conducted to ensure dependable communication and data exchange between the vehicle and infrastructure. This is vital for the seamless operation of the monitored ADS feature, encompassing functionalities like assistance and monitoring links. Maintaining a bidirectional stream with a balanced symmetric bandwidth and low latency for the control channel requires consistent capacity to attain robust connectivity. Comprehending the capabilities and limitations of the test site is instrumental for effective planning and preparation for operational deployment. This understanding is achieved by identifying areas necessitating enhancement or optimisation and verifying that essential infrastructure and connectivity prerequisites are satisfied to successfully demonstrate the ADS feature. Remote assistance and monitoring, especially video streaming, necessitates low latency and high uplink bandwidth. The adaptive video codec should accommodate varying bitrates based on availability. Additionally, the uplink is typically more constrained than the downlink, making it a critical consideration. The site assessment has concentrated on the available uplink capacity, which is likely to be the limiting factor in a remote-assistance and monitoring scenario. The assessment predominantly focused on measuring the Reference Signal Received Power (RSRP). The RSRP is a reliable indicator for predicting the radio uplink capacity since it gauges the cell's proximity from a radio standpoint. Uplink radio interference is mainly due to other handsets moving within the cell, making it more dynamic and more challenging to predict downlink interference. The site assessment employed a low-adaptive-latency User Datagram Protocol (UDP) stream to validate video performance. This helped estimate the traffic that could be sent on the uplink without causing delays or overloading the network. Unlike network speed test tools prioritising high bandwidth, this approach considers the absolute latency and latency variation (jitter). In the experimental procedure, the tester held a measurement terminal during the initial lap of the site under assessment, as shown in Figure 6; the corresponding speed profile is illustrated in Figure 7. For laps 2 to 5, the handheld device was positioned between the front seats of a car circulating the track. The first two laps were executed with a target bitrate of 20 Mbit/s, while the bitrate for the subsequent laps was elevated to 50 Mbit/s. The test utilised a handheld terminal with a specialised carrier company application (Telia). This application collected and reported essential radio measurements, including the Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Signal-to-noise ratio (SNR), frequency, cell information, and absolute position using the GNSS (Global Navigation Satellite System). Figure 8 showcases the RSRP as a performance indicator for coverage while Figure 9 illustrates the related functional-handover scenario. An adaptive UDP stream, emulating adaptive video, was used to measure the real-time bandwidth (RT BW) up to a target level. Laps 1 and 2 employed a 20 Mbit/s target bitrate, with later laps using 50 Mbit/s. The RT BW serves as a performance indicator for the throughput, as depicted in Figure 10, and the related scenarios are portrayed in Figure 11.  
Figure 8: Reference Signal Received Power (RSRP) primary cells. Points of interest are circled in red. Figure 7: Data were collected over a total of 5 laps at the route at Lindholmen. Figure 10: Measured bandwidth in the demonstration area. Points of interest are circled in red. Figure 9: NR and LTE Reference Signal Received Power (RSRP) over time. Points of interest are circled in red. In an unloaded network, the latency remains consistent at a specific location. The latency measured by the tool reflects the delay in the transmitted data stream.