. The CRS transmission power is approximately 9% of the total eNodeB power with 2 X 2 MIMO configuration. As the CRS transmission is a constant deterministic sequence for each cell, it is possible for the UE to estimate the CRS interference from strongly interfering cells and remove the CRS interference by non-linear interference cancellation (IC). This kind of interference cancellation is included in Release 11 and called further enhanced ICIC (feICIC). Signal-to-noise ratio Non-ABS Non-ABS CQI report by Release 8/9 UEs CQI report by Release 10 UEs Figure 7.10 Time-restricted UE measurements with eICIC LTE Small Cell Optimization The interference cancellation capability is typically included together with eICIC in the chip sets. This essentially means that small cell UEs with CRS IC ideally experience zero macro interference when ABS is used. In order to reduce UE implementation complexity, network can provide the UE a list of CRS IC assistance information for the cells where the UE may likely perform CRS IC. The CRS IC assistance information list includes data such as the number of antenna ports, physical cell identity and multicast broadcast single frequency network (MBSFN) subframe configuration of the different cells. Thus, the UE can avoid blind estimation of those parameters. The feICIC CRS IC functionality is a mandatory capability for both FDD and TDD Release 11 UEs. Moreover, UEs could have physical broadcast channel (PBCH) interference cancellation (IC) capability or an implementation with equivalent or better demodulation performance than PBCH IC. Furthermore, since cells are assumed to be time synchronized for eICIC, collisions of system information block one (SIB1) can cause problems for the pico users in the cell range extended to correctly receive the SIB1. In order to address the problem, the network can send the SIB via dedicated signalling to the pico user. This allows sending the SIB1 while the macro is using ABS. Table 7.2 summarizes the benefits, requirements and characteristics for Release 