China’s 6G research activity will receive further technical attention from 14 to 16 August 2026, when the International Conference on Communication, Sensing and Intelligent Computing (CSIC 2026) is held in Guilin, Guangxi. The conference covers 6G communication, Integrated Sensing and Communication (ISAC), millimetre-wave and terahertz communication, optical wireless systems, AI-based network control and integrated Space-Air-Ground-Sea networks. So, now let us look into How China 6G Research Focuses on ISAC, Terahertz and Space-Air-Ground-Sea Networks along with Reliable LTE RF drive test tools in telecom & RF drive test software in telecom and Reliable 4G Tester, 4G LTE Tester, 4G Network Tester and VOLTE Testing tools & Equipment in detail.
These subjects show how 6G research is moving beyond higher data throughput. Future radio systems are being designed to communicate, sense the surrounding environment, process information and connect terrestrial infrastructure with non-terrestrial communication systems. This direction is also aligned with the ITU IMT-2030 framework for mobile communication systems beyond 2030.
ISAC changes how the radio network operates
Integrated Sensing and Communication allows communication and sensing functions to use the same radio infrastructure and, in some designs, the same waveform and spectrum resources. CSIC 2026 specifically includes ISAC waveform design and signal processing within its advanced communication track.
A conventional cellular radio mainly sends and receives communication data. An ISAC system can also process reflected radio signals to obtain information related to distance, movement, position and objects around the radio system.
This changes RF engineering requirements. Engineers may need to analyse communication performance together with sensing accuracy, channel conditions, interference, timing, antenna behaviour and mobility. Research into 6G ISAC also examines how sensing information can help a network respond to blockage and changes in the radio channel.
Terahertz communication introduces new RF problems
Terahertz and millimetre-wave communication are also part of the CSIC 2026 technical programme.
Higher-frequency spectrum can provide large bandwidth for very-high-capacity wireless communication. However, operating at these frequencies creates RF problems around propagation loss, blockage, antenna design and beam alignment.
Research into THz-based 6G links is therefore looking at ultra-large antenna arrays, hybrid beamforming, waveform design and channel estimation. THz communication combined with sensing is also being studied for UAV and non-terrestrial systems.
For field testing, measuring throughput alone will not explain network behaviour. Engineers may need measurements for received signal level, beam switching, beam stability, blockage recovery, latency, mobility and connection reliability.
Space-Air-Ground-Sea networking extends the radio network
A second major 6G area at CSIC 2026 is the integrated Space-Air-Ground-Sea network.
The architecture connects terrestrial mobile infrastructure with satellites, near-space platforms, aircraft, UAVs and maritime systems. Research in this area includes channel modelling, beam management, network optimisation, maritime communication, sensing and satellite-to-ground communication.
The engineering challenge is that each network layer has different radio conditions.
A terrestrial cell may provide predictable coverage around a base station. A satellite or UAV link introduces movement, changing propagation distance, different antenna geometry and different handover conditions. A 6G device could eventually need to maintain service while communication moves between terrestrial and non-terrestrial radio systems.
AI is becoming part of radio control
CSIC 2026 also includes machine learning for network optimisation, graph neural networks, generative AI for network traffic and reinforcement learning for autonomous network control.
AI could therefore become part of radio-resource selection, traffic management, mobility decisions and interference control.
However, every automated decision still needs measurable RF results. If an AI controller changes a band, beam, cell or network path, engineers need to confirm whether coverage, SINR, throughput, latency and service performance actually improved.
6G will require stronger field validation
6G testing will gradually require more parameters than traditional signal-strength measurements. Field data may need to combine RF KPIs, beam behaviour, sensing information, positioning, spectrum usage, mobility and application performance.
For RantCell, this creates a clear testing direction. Smartphone-based drive testing, indoor testing, automation and cloud-based RF analysis can provide measured field data for comparing network behaviour across locations and test conditions. RantCell already supports smartphone-based 4G/5G drive testing, indoor testing, automated test campaigns and cloud analysis.
As China and other countries move further into 6G research, the radio network will become more adaptive. The test system must therefore verify what the network is doing, where it is doing it and whether that change actually improves the end-user connection.
About RantCell
RantCell provides smartphone-based network testing and cloud analytics for telecom operators, enterprises, system integrators, and network engineering teams. It enables RF drive tests, indoor walk tests, automated network measurements, and QoE testing while capturing KPIs such as RSRP, RSRQ, SINR, throughput, latency, and network coverage. Results are uploaded to the RantCell cloud for analysis, mapping, and reporting. Also read similar articles from here.