Hi everyone!
Today I will continue to write migration from GPON to XG(S)-PON. Let's get started.
As I said at the end of the previous article, today, GPON is the current technology, most popular among telecommunications operators. In recent years, operators have started to migrate from the current GPON to the next generation - XG(S)-PON. The next generation PON appears in two variants. As an asymmetric XG-PON with speeds of 10 Gbps in the downstream and 2.5 Gbps in the upstream and as a symmetric XGS-PON, which allows 10 Gbps in both directions. The operator generally opts for XGS-PON immediately.
China, and especially Huawei company, is a leader in the production and sale of PON equipment in the world. In recent years, it has shifted its thesis from GPON to XG(S)-PON. And if China is still a global leader in the production and sale of GPON equipment. It thus showed the further direction of development to telecommunications operators. Production and sales of XG(S)-PON equipment are growing day by day, because it is the near future.
Figure 1. Different access technologies
What are the benefits of the new technology? Why does migration start? That is the main question. As I wrote in one of the previous articles, generally a residential user needs up to 100 Mbps internet speed in the downstream (How much internet speed do you really need?). In short, all the demands for internet speeds are growing (online gaming, video conferencing, video streaming (4K, 8K, 12K), etc), the number of users per PON port is increasing, the number of serious "internet consumers" such as business users is a large, etc. Taking all this into account, the new generation of PON standards is ready to meet all these requirements.
In a previous paper, I gave the main characteristics of this standard. Now, I will list only the advantages of XG(S)-PON over GPON, these are: 4 times higher data speed in the downstream and 4/8 times higher data speed in the upstream compared to the previous standard. Then, lower latency, which guarantees SLA. Possibility of a larger number of users per one PON port - 128, 256, or more. Possibility of connecting users at longer distances - logical distance 100 km, etc.
I will continue to write about this topic in the next article >> Evolution from GPON to XG(S)-PON (3).
Thank you!
