在认知无线电系统中,认知无线电用户可以自主的寻找某段频谱的授权用户(Licensed User, LU)不占用该频段的“频谱空洞”(即时间上或空间上的空闲频谱),在这些频谱内来传输自己的数据。
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These problems will be effectively improved by making the receiver of the licensed user to send a beacon signal.
适当的改变授权用户接收机使其发送信标信号可以有效的缓解这些问题。
Because the active standby machine is still used for user transactions and query, even if no failure occurs, it must be fully licensed.
因为active备用机器仍被用于处理用户事务和查询,即使没有故障出现,它也必须是被完全许可的。
SaaS end user who functions as an administrator of a user license has a higher priority over other end users in accessing a licensed application.
作为用户许可管理员的SaaS终端用户,在访问一个已授权的应用程序时,比其他终端用户拥有更高的优先级。
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