name: CP
full_form: Control Plane
context: NR. As shown in the figure for the 15 kHz case, each slot consists of 14 OFDM symbols (independently of the SCS) preceded by a cyclic prefix (CP). Table 5.5.4.1-2: Multiple numerologies in NR Note: Additional specific numerologies are defined for PRACH, as described in Section 5.5.4.3. Note that, for the 60 kHz SCS, an extended CP is possible. The extended CP is approximately four times longer than the normal CP and is used for cells having large delay spread. In this case, one slot consists of only 12 OFDM symbols. The OFDM symbol duration and CP length are inversely proportional of the SCS. E.g. for 15 kHz SCS, the OFDM symbol duration is approximately 66.6 Âµs and the CP length is approximately 4.7 Âµs. When the SCS is doubled, i.e. 30 kHz, the OFDM and CP lengths are approximately devided by two compared to the 15kHz SCS. NR supports both FDD and TDD operation with the same frame structure. In the case of TDD, and as to allow for flexible traffic adaptation, each OFDM symbol in a
description: The cyclic prefix (CP) is a crucial element in the New Radio (NR) frame structure. It's a repetition of the beginning of an OFDM symbol added at the end, mitigating inter-symbol interference (ISI). The CP length is inversely proportional to subcarrier spacing (SCS), highlighting its significance in shaping NR operation.
explanation: The cyclic prefix (CP) is classified as a Parameter because it's a configurable network attribute that directly influences the frame structure and performance of New Radio (NR) systems. Its value impacts signal integrity and transmission efficiency.
section_title: 5.5.4.1	Numerologies, waveform and frame structure
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