Network access of wireless devices to communication networks
A technology for network access and wireless devices, which is applied in the field of network access of wireless devices to communication networks, can solve problems such as lack of PAPR characteristics, and achieve the effect of avoiding time conflicts
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[0039]The inventive concept will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the inventive concept are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of illustration so that this disclosure will be thorough and complete, and will The scope of the inventive concept fully conveys to those skilled in the art. Like numbers refer to like elements throughout the specification. Any steps or features indicated by dashed lines should be considered optional.
[0040] Single-tone frequency-hopping NB-IoT PRACH (labeled NPRACH) signals have low PAPR, so using NPRACH reduces the need for PA backoff and maximizes PA efficiency. The NPRACH signal is compatible with SC-FDMA and Orthogonal Frequency Division Multiple Access (OFDMA), because in any OFDM symbol interval, the...
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