华为：Sub-3GHz 演进白皮书（2022）（英文版）（9页）.pdf

1、Sub-3GHz FDD Gigaband Technical White Paper1IntroductionBackground2ObjectivesThe mobile Internet has become an integral part of our everyday life,like water and electricity,and demand continues to grow year on year.To accommodate demand for mobile connections experience upgrading operators have adde

2、d more spectrum,sites,antennas etc.to increase network capability for traffic growth,but this has led to a complicated network architecture and increased operating cost.Operators now find themselves with a dilemma how to expand services while pursuing low cost deployment and operations reduces TCO.S

3、ustainability also needs to consider energy saving,extended and selective use of material.Inevitably,network sustainability requires low cost deployment and operation as the network provides higher capacity by advanced technologies to boost spectrum capabilities.This requires base stations(BTS)to be

4、 redesigned in line with the trends for green and simplified evolution.sub-3 GHz Gigaband is a necessary direction for green mobile networks and simplified 5G sites evolution.Gigaband employs ultra-wideband and multi-antenna MIMO technologies to facilitate the evolution of all sub-3 GHz spectrum to

5、5G.This enables multiple bands to be implemented in a single equipment.From the perspective of equipment and service deployment,it is necessary to re-design both hardware and software to enable all bands smooth migration to 5G and evolution to 5G-Advanced.Gigaband commercialized by operators network

6、s.In addition,mobile equipment suppliers,telecom industry analysts,and policy makers see ultra-wideband and multi-antenna technologies as major trends towards simplified,green sub-3GHz 5G.Gigaband technologies support the strategy of simplified and green evolution of all bands to 5G networks,particu