RADIO NETWORK NODE AND WIRELESS DEVICE, AND METHODS THEREIN

A Radio Network Node (RNN) (106) and a method therein for providing improved robustness of a radio link between the RNN and a wireless device (108). The RNN and the wireless device operate in a communications network (100). The RNN transmits, towards the wireless device, a transmission with a first transmission mode associated with a first level of coverage extension. When a first period of time has elapsed, the RNN transmits, towards the wireless device, the transmission using a second transmission mode associated with a second level of coverage extension. The second level of coverage extension is higher than the first level of coverage extension. 无线电网络节点(RNN)(106)及其中的方法提供了RNN与无线设备(108)之间的无线电链路的提高的鲁棒性。RNN和无线设备在通信网络(100)中操作。RNN利用与第级别的覆盖扩展相关联的第传输模式向无线设备发送传输。当经过了第时间段时，RNN使用与第二级别的覆盖扩展相关联的第二传输模式向无线设备发送传输。第二级别的覆盖扩展高于第级别的覆盖扩展。