Since 2023, Hytec Inter has been offering the "Sub6 Band Compact Local 5G Platform" compliant with O-RAN, advancing PoC (Proof of Concept) in customer environments. One expected advantage for local 5G is the high speed and large capacity on uplink. Semi-synchronous TDD1, which allocates more uplink slots compared to carrier 5G, is already in operation for local 5G. However, for certain use cases, there is an increasing demand for even faster uplink speeds and more capacity. Consequently, in addition to the already institutionalized semi-synchronous TDD1, additional patterns (semi-synchronous TDD2 and TDD3) that increase the proportion of uplink slots for faster speeds are under consideration.

Last year, we applied for and received approval to add semi-synchronous TDD2 and TDD3 to our local 5G experimental station license. In this session, we will show the results of field tests and effects with semi-synchronous TDD3 at Hokkaido Test Development Center located in Numata Town (Uryu District, Hokkaido). Additionally, we will show actual 4K video stream over local 5G, using our products low-latency, rate-controlled 4K video encoder/decoder, and introduce our efforts for local 5G development.