文中涉及的缩略语:
FDMA(Frequency Division Multiple Access,频分多址接入)
TDMA(Time Division Multiple Access,时分多址接入)
CDMA(Code Division Multiple Access,码分多址接入)
OFDMA(Orthogonal Frequency Division Multiple Access,正交频分多址接入)
NOMA(Non-orthogonal Multiple Access,非正交多址接入)
MUSA(Multi-User Shared Access,多用户共享接入)
MIMO(Multiple-Input Multiple-Output,多输入多输出)
mMTC(Massive Machine Type Communication,海量机器类通信)
URLLC(Ultra Reliable Low Latency Communication,超高可靠超低时延通信)
V2X(Vehicle to Everything,车与万物)
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