CDMA is a power limited system, in which an appropriate downlink power control scheme can increase QoS of the mobile on the cell edge. But the CDMA trunking system adopts no downlink power control scheme, which diminishes the system capacity. CDMA是功率受限系统,下行功率控制可以提高小区边缘用户的通话质量,但是现行CDMA集群系统采用无下行功率控制方案,影响了其系统容量。
In the event of no aSSociated uplink data being transmitted between two related downlink TPC commands, the UE shall ignore the resulting TPC command. 当在两个相应的下行TPC命令之间没有相关的上行数据发射的情况下,UE应该忽略作为结果的TPC命令。