Based on the dynamic change of traffic load in the network, more flexible spectrum sharing and more sophisticated spectrum scheduling are implemented to improve data throughput and guarantees voice service in the same time. Multi-RATs can be implemented within the same frequency band, helping operators smoothly and economically introduce new technologies, and maximizing spectrum benefits.
In 5G era, LTE/NR dynamic spectrum sharing implements fast introduction of 5G based on FDD spectrum. SuperDSS, the core innovation of Magic Radio Pro in 5G era, guarantees traditional voice experience while implementing fast 5G deployment. It is the first solution in industry that supports three-mode dynamic spectrum sharing.
Scenarios and Challenges
To make full use of spectrum with fast 5G deployment and offer legacy voice service experience in an efficient way is a challenge posed to global operators. In the process of spectrum evolution from FDD to NR, if all the spectrum are used for LN DSS, then legacy voice service can't be guaranteed; if at least one UMTS carrier or GSM TRX is reserved for legacy voice service, LTE/NR DSS cannot be delivered in the whole bandwidth which is not an optimal way of spectrum utilization.
Advantages and Highlights
ZTE SuperDSS is industry’s first 2G/4G/5G and 3G/4G/5G triple-RAT DSS (Dynamic Spectrum Sharing) solution. 2G/3G bandwidth is allocated on demand, with the minimum of 200KHz for GSM and 2.6MHz for UMTS, provides as much spectrum resources as possible for LTE and NR. SuperDSS empowering quick 5G roll-out while guarantees legacy voice service, maximizing spectrum ROI.
SuperDSS improves spectrum utilization while guarantees legacy voice service, improves LTE/NR user throughput, and supports flexible scheduling strategy to meet different 5G development stage requirements.