pdate interval, the BS reports to the network controller the following information: BS-ID; the number of mobile stations in the cell; the mobile station location distribution; and the MS UL/DL SINR distributions, UL/DL traffic distribution, base station's transmission power in each frequency partition, uplink IoT control parameter YIoT corresponding to each FFR partition that is used to calculate the FFR partition size, power levels, relative load indicator, and reference uplink IoT control parameter partition reference for FFR partition configuration. The base station may use various mechanisms to mitigate the inter-cell and/or intra-cell inter- ference experienced by the mobile stations or to reduce interference to other cells. The interference mitigation techniques may include sub-channel scheduling, dynamic transmit power control, dynamic antenna pattern adjustment, and adaptive modulation and coding schemes. The base station may allocate different modulation and coding schemes to mobile stations through uplink scheduling which indirectly controls the MS transmit power and thereby interference to other cells. The base station can exchange power control information with neighbor base stations. The mobile station may use interference information and its downlink measurements to control the uplink interference it causes to adjacent cells. The base station can schedule mobile stations with high mutual inter- ference on different sub-channels or frequency partitions. Cell/sector specific interleaving may be used to randomize the transmitted signal, in order to allow for interference suppression at the receiver. 10.9 MULTI-ANTENNA TECHNIQUES IN 3GPP LTE Figure 10-49 illustrates different stages of 3GPP LTE physical channel processing in the downlink and uplink. In the downlink, the coded bits in each of the codewords are scrambled for transmission on a physical channel. The scrambled bits are modulated to generate complex-valued modulation symbols that are later mapped to one or several transmission layers. The com