模拟3G环境，测试可伸缩视频码流，适合JSVM开发者-Analog 3G environment, testing, scalable video stream, suitable for JSVM developers

本文主要介绍了3G方面的相关知识包括LTE和HSPA以及OFDM资源分配等相关的知识。对于4G的学习也很有帮助。-This paper introduces the relevant knowledge, including 3G LTE and HSPA and OFDM resource allocation and other related knowledge. 4G is also helpful for learning.