Exact(2)
In the block-fading case, the channel is constant during the duration of one subframe (1 ms).
Therefore, we use 1 resource block (180 KHz) over 1 subframe (1 millisecond) as the basic unit for generating the SINR in the simulation.
Similar(58)
For our proposed algorithm, the last usable subframe for DL transmissions was subframe −6.
With Algorithm C, the last usable subframe is the subframe −41.
Number of OFDM symbols per subframe 14 This is for normal cyclic prefix (CP).
In this study, we started the observation from the subframe −40.
If the UE finds the channel idle for the first time in the i th CCA period, it transmits data from subframe 4 + i − 1 (mod ℓ) to subframe 4 + i − 1 + N − 1 (mod ℓ), 1 ≤ i ≤ K.
An LTE frame is formed by 10 consecutive TTIs and within each 1 ms subframe, 12 OFDM symbols are used.
In the proposed algorithm, new PDUs are accepted significantly longer, all the way until the subframe −6.
In this example, UE is granted to transmit data from subframe 4 to subframe 6 and required to perform CCA right before the beginning of subframe 4. If UE fails to find an idle channel, it can transmit nothing and has to wait for a new grant from eNB.
In S K, L), if CCA success (i.e., the channel is sensed idle) happens for the first time in the i th access opportunity, 1 ≤ i ≤ K, then UE transmits data from subframe 4 + i − 1 to subframe 4 + i − 1 + L − 1 afterwards.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com