tioned and each partition is dedicated to a specific base station type, such as macro BS, macro Hot-zone BS, vii femto BS, etc. The partition information is 'Macro hot-zone BS is a base station/access point with lower transmission power relative to macro BS (higher transmit power than a femto BS) and is possibly deployed overlaid with another macro BS. The macro hot-zone BS may be deployed by a service provider or, unlike a femto BS, it may be deployed in an outdoor environment. CHAPTER 9 The IEEE 802. 16m Physical Layer (Part I) IEEE 802.16m W/O CoRe - 1st Transmission IEEE 802.16m CoRe 1st Transmission IEEE 802.16m W/O CoRe - 2nd Transmission IEEE 802.16m CoRe 2nd Transmission IEEE 802.16m W/O CoRe 3rd Transmission IEEE 802.16m CoRe 3rd Transmission IEEE 802.16m W/O CoRe 4th Transmission IEEE 802.16m CoRe 4th Transmission SNR (dB) FIGURE 9-57 Performance with and without constellation rearrangement in the uplink [87] broadcast in the secondary superframe header. For support of femto-cell deployments, a femto BS is expected to configure the segment or sub-carrier set for SA-Preamble transmission based on the segment information of the overlay macro-cell BS for minimized interference to macro-cell, if the femto BS is synchronized to the macro-cell base station. The segment information of the overlay macro-cell BS may be obtained through communication with the macro-cell BS via a backhaul network or active scanning of the SA-Preamble transmitted by neighbor macro-cell base stations. The sectors/cells are distinguished by the SA-Preamble. Each segment uses an SA-Preamble composed of a carrier-set out of the three available carrier-sets. For 512-point FFT, corresponding to the 5 MHz transmission bandwidth, the 288-bit SA-Preamble sequence is divided into eight main blocks, namely A, B, C, D, E, F, G, and H. The length of each block is 36 bits. Each segment has different sequence blocks. For 512-point FFT size, A, B, C, D, E, F, G, and H are modulated and mapped sequentially in ascending order onto the SA-Preamble su