This article analyses the network construction and interface requirement of WCDMA, put forwards the forecast mode of 3G services and the Iub interface bandwidth design procedure of Node B. Based on the analyses of WCDMA network Node B uplink Iub interface bandwidth requirement,the author calculates the quantity of E1 circuits that the WCDMA network demands.
分析了WCDMA的网络结构和接口要求,给出了3G业务中电路域业务、分组域业务和互联互通业务的预测模型,以及Node B Iub接口带宽计算公式,通过WCDMA网络Node B上行Iub接口带宽的需求分析,对WCDMA网络传输所需要的总的E1电路数进行了计算。
This article outlines IMS standardization activities in these two standards bodies,and key technologies and hotspot issues behind IMS touching upon improving and enhancing IMS core network,interconnecting with IMS,problems arising from coexistence of IMS and Circuit Switched (CS),and the IMS research related to NGN-R2.
Compared with other transistor tuning approaches, our tuning process takes the cross-talk effect into account and prominently reduces the complexity for circuit simulation and analysis by decomposing the circuit network utilizing graph theory.
Data were further analyzed in terms of an electrical circuit network, which was used to non-invasively infer details of the subsurface seepage.
Figure 2 represents the electric circuit network depiction for the six pulse valve group configuration.
In order to examine the effects of nonuniformities, a 3-D eddy current code was developed using a circuit network model.
To be complete, it should also include para sitics associated with the probed circuit network itself.