This document discusses power boosting techniques for TD-LTE networks. It examines the use of different power boosting levels and their effects on reference signal power, cell coverage, SINR, and downlink throughput based on simulations. Power boosting 1 uses less power than power boosting 3, but power boosting 3 provides slightly better coverage and throughput while maintaining similar power consumption levels when using a higher reference signal power. The conclusion recommends using power boosting in areas with low-density coverage needs or dense urban environments dominated by high-rise buildings to improve penetration without requiring additional cell sites.

1. TD-LTE Project
www.huawei.com
www.huawei.com
TD-LTE Power Configuration
Author/ Email: Ray Khastur
Version: V1.0 (20140106)

2. Basic Principle

3. 3
How to Calculate RS

4. 4
Kind of Symbol

5. 5
PB Explanation
*PB 0 is mean there is no increment on CRS RE it’s mean non power boosting, but PDSCH power increase to 5/4.
*By using PB 1, the RS Power increase on CRS RE two units it’s mean about power boosting and PDSCH power on symbol type B
same.
*By using PB 3, the RS Power increase on CRS RE 4 units it’s mean about power boosting and PDSCH power on symbol type B
reduce half than PB 1.

6. Simulation Result

7. 7
RSRP with PB : 1

8. 8
RSRP with PB : 3

9. 9
RSRP Comparison
From Simulation single site there is no difference between PB 1 and PB 3 usage in coverage plot.
But from Power Consumption Calculation PB 1 will used around 10 W on each port of RRU.
And For PB 3 will used around 5 W on each port of RRU.
In this simulation one site have configuration of 10 MHz and all cell’s using RS Power 15.2 dBm with different PB configuration.

10. 10
SINR with PB : 1

11. 11
SINR with PB : 3

12. 12
SINR Comparison
From Simulation single site there is improvement of SINR > 0 dB around 3.65%

13. 13
DL Throughput with PB : 1

14. 14
DL Throughput with PB : 3

15. 15
DL Throughput Comparison
From Simulation single site there is improvement of DL Throughput > 12.5 Mbps around 0.04 %
PB 3 in this simulation have 101.9 Kbps more
higher than PB 1 Average DL Throughput.
But Peak Throughput still same at 28.17 Mbps

16. Using RS Power 18.2 dBm
with PB 3

17. 17
RSRP

18. 18
RSRP Comparison
In this simulation one site have configuration of 10 MHz and all cell’s using different RS Power but with the same PB configuration .
RS : 15.2 dBm
PB : 1
Pwr : 10 W
RS : 18.2 dBm
PB : 3
Pwr : 10 W

19. 19
SINR

20. 20
SINR Comparison
From Simulation single site there is improvement of SINR > 0 dB around 9.51%

21. 21
DL Throughput
Improve
Improve
Improve

22. 22
DL Throughput Comparison
Compare with Average user Throughput for RS Power 15.2 dBm PB 1 which have same power
consumption, Average DL Throughput for 18.2 dBm PB3 have degraded 0.46% inside the polygon.
This degradation inline with the improvement of coverage outside the polygon.

23. Conclusion

24. 24
Application of Power Boosting
 Power Boosting can be used in order to manipulate limited of
power that can be used for single carrier coverage not more
than half of capacity.
 Implementation of Power Boosting (PB) can be applicable for
area where site to site distance is more than 800 meter for
outer area, and can be used also in inner area if the
morphology of that area is mostly dominated with High Rise
Building, Dense of Ruko (House with Commercial area) with
more than 1 floor, this condition need additional site or we can
use more penetration power with PB implementation.