摘要： 
4G, the fourth generation mobile communication technology. It is based on the continuous optimization and upgrading of 3G communication technology, integrates the advantages of 3G communication technology, and derives a series of its own inherent characteristics. 阅读全文
4G, the fourth generation mobile communication technology. It is based on the continuous optimization and upgrading of 3G communication technology, integrates the advantages of 3G communication technology, and derives a series of its own inherent characteristics. 阅读全文