通信系统常见问题 common problems in mobile network

1. From the point view of customer: 

• quality of service degradation of voice calls and internet access; 
• call dropped due to interference or handover; 
• information security 

2. From the point view of operator: 

• channel resource (improve utilization using tech i.e. adaptive resource alloc); 
• equipment (deployment i.e. femtocell and macro cell; power consumption optimization i.e. adaptive power control); 
• improve system utilization by analyze data patterns and predict errors.