This paper presents an overview of the 5G NR radio interface as specified by 3GPP. Specifically, the paper covers 5G NR in IMT2020 context, key design criteria and requirements, fundamental technology components of 5G NR,RF requirements and spectrum bands, Radio Resource Management and Link Monitoring and co-existence/sharing of 5G NR and LTE.

Accessory Interface Specification R28 用于开发MFI，苹果设备，iAP2 协议 lightning配件相关参考使用