Application of load control in 3G CDMA networks for improved system level modelling and performance analysis

Intelligent management of radio resources in UMTS access networks

“…In [13], we show how the STEAM tool can be used to find an analytical model for CAC in UMTS. This model can serve a two-fold purpose: On the one hand, network-wide studies (e.g., obtaining the end-to-end performance of the overall system) can be conducted by using the system model without going into a deep level of detail in the CDMA network.…”

“…In contrast to the uplink, the other cell interference I otherj at each user has a significant impact on the resource consumption. We now define the current downlink load h DL as follows: (12) Now the mean transmitted power P j from (10) can be rewritten using (12) yielding to (13) To obtain a non-negative solution for P j in (13), the following capacity bound must be met (14) The current downlink load h DL can be estimated using (10) and (12) by…”

“…A more thorough description of the algorithms and the theoretical background can be found in [11,13].…”

Throughput-based and power-based load control in HSUPA

“…Load control is an important function in radio resource management (RRM) to guarantee the Quality of Service (QoS) and stability of the system as well as efficiently utilize the limited resources [5][6] [7]. Throughput-based load control is widely proposed in the existing R99/R4/R5 releases [1], since the uplink scheduling and rate control module resides in the Radio Network Controller (RNC) and RNC has the knowledge of the throughputs of all the Node-Bs connected to it [8].…”