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The 5G system achieves a breakthrough increase in the key performance indicator of communication systems, compared to the previous generation 4G system. In addition, the 5G system introduced new functionalities supporting various emerging application scenarios. Based on the success of the 5G system, the 6G system is likely to emerge around end of 2020s. There are many ongoing activities to define requirements of the 6G system. Recently, 3GPP SA1 started various studies for Rel-19 5G systems. The outcome of the Rel-19 may not only show the additional capability that the 5G system will bring, but also provide a guidance on what future the 6G system needs to be capable of. In this whitepaper, the ongoing areas of the Rel-19 studies are discussed.

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