Breaking the Gigabit Barrier on Commercial 5G NSA - Tri-Carrier Aggregation in the Real World

5G NR
, , ,
62

Yes, L3 messages.

63

Let me check in our network.

64

Try checking the MO NsaDcMgmtConfig .

Also, set the UlDataSplitThreshold much lower than the value shown in the picture - around 800 bytes would be better.

With a high threshold value, the uplink can stall when NR conditions become poor.

Look for the parameters UlDataSplitPrimaryPath and UlDataSplitThreshold .

They should be located under the MO NsaDcQciParamGroup .

65

image
image1080×499 49.5 KB

This is the normal speed. Here, I want to highlight the uplink throughput issue.

66

But what DL/UL TDD pattern you have?

67

It is 8_2.

68

I guess focus is per DL not UL.

69

Yes, but the network-level UL throughput is only around 1.9 Mbps, which is even lower than LTE.

70

But only 79 sites, what can you do…

71

At least to increase it to around 2.5 Mbps.

72

Consider increasing the number of MU-MIMO layers for uplink. For example, configuring 16 layers per cell can improve user pairing efficiency and enable better spatial multiplexing, which can help boost NR uplink throughput.

Check the following parameter in the MO CellMimoParaCfg :

MuMimoMaxPairLayer

73

Huawei recommends setting the threshold to 1600 bytes.