From: Radio resource management for uplink carrier aggregation in LTE-Advanced
Parameters | Settings | |
---|---|---|
Simulation scenario | 3GPP macro case number 1 | |
Network layout | Seven macro sites - three sectors/site - wrap around | |
Channel model (UMa) [38]a | LOS pathloss | 22 log10(d) + 28.0 + 20.0 log10(f), shadow fading std = 4 dB, \( 10\ \mathrm{m}<d<{d}_{\mathrm{BP}}^{\hbox{'}} \) |
\( 40{ \log}_{10}(d)+7.8-18{ \log}_{10}\left({h}_{\mathrm{BS}}^{\hbox{'}}\right)-18{ \log}_{10}\left({h}_{\mathrm{UT}}^{\hbox{'}}\right)+2{ \log}_{10}(f) \), shadow fading std = 4 dB, \( {d}_{\mathrm{BP}}^{\hbox{'}}<d<5,000\ \mathrm{m} \) | ||
NLOS pathloss | 161.04 − 7.1 log10(W) + 7.5 log10(h) − (24.37 − 3.7(h/h BS)2)log10(h BS) + (43.42 − 3.1 log10(h BS))(log10(d) − 3) + 20.0 log10(f) − (3.2(log10(11.75h UT))2 − 4.97), shadow fading std = 6 dB, 10 m < d < 5, 000 m | |
LOS probability | \( \min \left(\frac{18}{d},1\right)\left(1- \exp \left(-\frac{d}{63}\right)\right)+ \exp \left(-\frac{d}{63}\right) \) | |
Inter-site distance | 500 m | |
Component carriers | Intra-band CA: 2 × 20 MHz @ 2 GHz, inter-band CA: 20 MHz@1.8 GHz + 20 MHz@2.6 GHz | |
96 available PRBs for PDSCH per CC | ||
Number of clusters | Single or dual clusters | |
PRBs per sub-band | Two PRBs | |
Sounding resolution | Two PRBs | |
Sounding period | Ten subframes | |
Sounding method | Imperfect SRS | |
eNode-B receiver | 4-Rx MMSE | |
Max UE power | 200 mW (23 dBm) | |
UE transceiver | Single transceiver for intra-band CA | |
Two separate transceivers for inter-band CA | ||
UE Tx bandwidth | ATB for multi-cluster | |
Packet scheduling | Joint proportional fair | |
Bursty traffic model | Finite buffer with different Poisson arrival rate | |
Fixed payload size of 2 Mbits per UE | ||
Full-buf. traffic model | Full buffer with fixed number of UEs | |
UE speed | 3 km/h | |
Available MCSs | BPSK (R = 1/5,1/3) | |
QPSK (R = 1/4,1/3,1/2,2/3,3/4) | ||
16 QAM (R = 1/2,2/3,3/4,5/6) | ||
HARQ | Synchronous and adaptive with maximum of four transmissions | |
First Tx BLER target | 20% | |
Link adaptation | Fast adaptive modulation and coding (AMC) | |
Pathloss compensation | α = 0.8 | |
95th percentile user pathloss | 118 dB@1.8 GHz, 120 dB@2 GHz, 123 dB@2.6 GHz | |
Power spectral density | Independent LAPC in each CC [34] | |
Average power back-off | P backoff = 6 dB |