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What are the key technologies in 5th generation mobile communications (5G)?


Latest company news about What are the key technologies in 5th generation mobile communications (5G)?

The improvement of 5G communication performance does not rely on one technology alone, but requires a variety of technologies to cooperate with each other to jointly realize. The key technologies are roughly divided into two categories: wireless transmission technology and network technology.

Large-scale MIMO technology: the base station uses dozens or hundreds of antennas, narrow beams, directional transmission, high gain, anti-interference, and improved spectral efficiency;


Non-orthogonal multiple access technology: NOMA, MUSA, PDMA, SCMA and other non-orthogonal multiple access technologies to further enhance system capacity. Supports uplink non-scheduled transmission, reduces air interface delay, and adapts to low-latency requirements;


Full-duplex communication technology: a physical layer technology that realizes simultaneous same-frequency bidirectional transmission of information through multiple interference elimination, which is expected to exponentially increase the capacity of wireless network;


New modulation technology: filter bank orthogonal frequency division multiplexing, supporting flexible parameter configuration, configuring different carrier intervals according to the need, adapting to different transmission scenarios;


New coding technology: LDPC coding and polar code with high error correction performance;


High-order modulation technology: 1024QAM modulation, improving spectrum efficiency.


Network slicing technology: Based on NFV and SDN technology, network resources are virtualized, providing resources for different services packaged for different users, optimizing end-to-end service experience, and having better security isolation characteristics.


Edge computing technology: Providing carrier-grade computing and storage resources at the edge of the network, localizing service processing, reducing backhaul link compliance, and reducing service transmission delay.


Service-oriented network architecture: The core network of 5G is constructed with service-oriented architecture, with smaller resource granularity, which is more suitable for virtualization. Meanwhile, the service-based interface definition is more open and easy to integrate more services.

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