What is DSS in 5G? What are the pros and cons?
DSS in 5G ?
DSS : Dynamic Spectrum Sharing .
Achieve wide 5G coverage as rapidly as possible.
DSS is a 3GPP R15 technology that allows the deployment of both 4G LTE and 5G NR in the same frequency band and dynamically allocates spectrum resources between the two technologies 4G/5G based on user demand.
The idea is to give the service provider a coverage layer for 5G NR in low band frequencies that are already used by LTE without refarming.
With DSS, when customers move outside 5G Ultra Wideband coverage area, their 5G-enabled devices will remain on 5G technology using lower bands of spectrum.
- Better 5G coverage, with lower latency and higher quality (in addition to faster download speeds) for consumers.
- Less Capex : reuse of existing bands
- Efficient TCO
- Avoid refarming costs
- Quick introduction of 5G over a wide area in low/mid bands.
Not all actual mobile equipements and modems can support DSS!
Here you can find my original post in Linkedin:
I think maybe eNodeb HW is also a limiting issue to share de LTE spectrum as not all eNodeb HW supports the NR resource grid structrure and numerology types…
Very good answer above!
Resource sharing is a trend for any technology and also any resource in the future!