Investigation of Adaptive Multi-Rate Link Adaptation of 3G System

In term of the features of 3G system, a novel AMR link adaptation strategy for 3G system is proposed. The impacts of AMR codec modes and power control on traffic quality of service are taken into account in the strategy at the same time. By synthetically comparing the signal-to-interference ratio value with the switching threshold and comparing the transmission power with its threshold, radio resource management can always keep each link on its proper codec mode with the corresponding optimal power level to achieve both robust speech quality and link capacity enhancement. Based on the WCDMA FDD uplink link-level simulation platform, AMR link adaptation platform is constructed. Simulation results show that the algorithm can track the fast change of channel conditions and select the most robust codec mode, thus the synthetic speech quality of AMR is better than that of signal mode during a wide range of channel conditions. The result will provide a reference strategy for AMR link adaptation of 3G system.

对建筑水电监理相关事宜的探究与思考

想要提升建筑水电监理水平,首先要改变思路,主动创新,及时应对监理工作中的变化与意外,同时注重工作效率,精益求精地做好重中之重,确保监理的高水准、高质量,有效提升建筑工程项目的综合能力,从而为企业带来良好的收益和口碑。作为一名在监理战线上工作多年的资深监理人,在面对工作中出现的问题时,应与时俱进,科学分析,给出合理、客观、有效的方案,由浅入深,逐一化解电气监理工作中的疑点、难点。