Transmitted format #i bit rate symbol bits/slot slots per radio (kbps) rate (ksps) frame, NTr NDatal NData2 NTFCI Npilot The UTRA Physical Layer Design * If TFCI bits are not used, then DTX shall be used in TFCI field. NOTE1: Compressed mode is only supported through spreading factor reduction for SF = 512 with TFCI. NOTE2: Compressed mode by spreading factor reduction is not supported for SF = 4. APPENDIX B: BIT PATTERNS COMPRESSED MODE AND NPILOT = 4 For slot formats 2B and 3B, i.e. compressed mode through spreading factor reduction and Npilot = 4, the pilot bits on antenna 1 are STTD encoded. Thus, the pilot bit pattern is as shown in the most right set of Table 4.14. Npilot =4 The UMTS Network and Radio Access Technology: Air Interface Techniques for Future Mobile Systems Jonathan P. Castro Copyright © 2001 John Wiley & Sons Ltd Print ISBN 0-471-81375-3 Online ISBN 0-470-84172-9 THE UTRA 1 TRANSMISSION SYSTEM UMTS SPECTRUM ALLOCATION The UMTS frequency ranges are part of the world wide spectrum allocation for 3rd or evolving 2nd generation systems. Figure 5.1 illustrates the representation of the spec- trum from major regions (e.g. Europe, Japan, Korea, and USA). GSM1800 FDD - UL MSS UL TDD FDD - DL MSS - [ DL IMT-2000 (UL) IMT-2000 (DL) IS-95 (DL MT-2000 (UL) IMT-2000 (DL) UnLic Figure 5.1 Spectrum allocation representation for 3G systems. The distribution of the frequency bands from the allocated spectrum for the UTRA sys- tem is covered next. We present the ranges for the FDD and the TDD in parallel in or- der to unveil a complete view of the UMTS frequency assignment. 5.1.1 UTRA Frequency Bands Table 5.1 summarizes the frequency bands for the TDD and FDD modes, as well as the frequency distribution for the User Equipment (EU) and the Base Station (BS). Al- though, in some cases the frequency ranges may be the same for both UE and BS, they are noted separately for completeness. Additional spectrum allocations in ITU region 2 are FFS, and deployment of UMTS in existing and other frequency bands is not precl