while cellular networks have continuously evolved in recent years, the industry has clearly seen unprecedented challenges to meet the exponentially growing expectations in the near future. The 5G system is facing gran...while cellular networks have continuously evolved in recent years, the industry has clearly seen unprecedented challenges to meet the exponentially growing expectations in the near future. The 5G system is facing grand challenges such as the everincreasing traffic volumes and remarkably diversified services connecting humans and machines alike.As a result, the future network has to deliver massively increased capacity, greater flexibility, incorporated computing capability,support of significantly extended battery lifetime, and accommodation of vary?ing payloads with fast setup and low latency, etc. In particular, as 5G requires more spectrum resource, higher frequency bands are desirable. Nowadays, millimeter wave has been widely accepted as one of the main communication bands for 5G.展开更多
文摘while cellular networks have continuously evolved in recent years, the industry has clearly seen unprecedented challenges to meet the exponentially growing expectations in the near future. The 5G system is facing grand challenges such as the everincreasing traffic volumes and remarkably diversified services connecting humans and machines alike.As a result, the future network has to deliver massively increased capacity, greater flexibility, incorporated computing capability,support of significantly extended battery lifetime, and accommodation of vary?ing payloads with fast setup and low latency, etc. In particular, as 5G requires more spectrum resource, higher frequency bands are desirable. Nowadays, millimeter wave has been widely accepted as one of the main communication bands for 5G.