Duplex method TDD Number of TDMA multiplexing 4 Number of multiplexing Depends on channel bandwidth Operation channel bandwidth 1.25 MHz, 2.5 MHz, 5 MHz, 10 MHz, 20 MHz Subcarrier frequency spacing 37.5 kHz Number of FFT points (channel bandwidth: MHz) 32 (1.25), 64 (2.5), 128 (5), 256 (10), 512 (20) Frame duration 5 ms Number of slots 8 slots (4 downlink/4 uplink: symmetry) Modulation method BPSK, QPSK, 16-QAM, 64-QAM, 256QAM Channel assign Autonomous decentralized control Basic cell size Micro-cell Connection technique Sub-channel connection, slot connection Technologies of efficient spectral utilization Adaptive antenna, SDMA, MIMO Peak channel transmission rate/5 MHz (in case of SISO, symmetry) Uplink: 9.85 Mbit/s Downlink: 10.7 Mbit/s The MAC layer of “eXtended Global Platform” has a very simple structure when seeing with the frequency axis and the time axis. This is because it is valued to keep continuously using the same frequency used between the base stations and terminals. As a result, a certain base station can monitor the frequency and timing used in the surroundings, and it is also able to choose to use the frequency and timing of best conditions. In addition, “eXtended Global Platform” has its uplink and downlink speed symmetric on the axis of time, which enables constant speed also for the uplink. By this, it enables real-time movie uploading and mobile video conference without inconvenience. The MAC image of “eXtended Global Platform” is shown in Fig. 2. Standards The “eXtended Global Platform” specifications of XGP Forum are available in electronic form at its website: “A-GN4.00-01-TS: eXtended Global Platform Specifications” . The ARIB (Association of Radio Industries and Businesses) has also standardized “eXtended Global Platform” for Japanese domestic use. The ARIB standard of “eXtended Global Platform”, stated here as “Next-generation PHS”, is also available at the ARIB website. “ARIB STD-T95: TDD Broadband Access System (Next Generation PHS) ARIB STANDARD” . The standard “ARIB STD-T95” includes Japanese regulation specifications as well as the system original specifications.
TABLE 7 (continued) Standard Nominal RF channel bandwidth Modulation/ coding rate(1) – upstream – downstream Coding support Peak channel transmission rate per 5 MHz channel (except as noted) support (yes/no) Support for MIMO (yes/no) Duplex method Multiple access method Frame duration Mobility capabilities (nomadic/ mobile) IEEE 17 (Formerly 802.11a) (Annex 1) 5 MHz 10 MHz 20 MHz Up and down: 64-QAM OFDM 2/3, 3/4 16-QAM OFDM 3/4 QPSK OFDM – 1/2, 3/4 BPSK OFDM – 1/2, 3/4 CC 13.5 Mbit/s No No TDD CSMA/ CA Variable duration Nomadic IEEE 19 (Formerly 802.11g) (Annex 1) 20 MHz Up and down: 64-QAM OFDM 2/3, 3/4 16-QAM OFDM – 1/2, 3/4 QPSK OFDM – 1/2, 3/4 BPSK OFDM – 1/2, 3/4 8-PSK PBCC – 2/3 64-QAM – 2/3, 3/4 16-QAM – 1/2, 3/4 QPSK DSSS-OFDM – 1/2, 3/4 BPSK DSSS-OFDM – 1/2, 3/4 CC 13.5 Mbit/s No No TDD CSMA/ CA Variable frame duration Nomadic 802.11-
TABLE 7 (continued) Standard Nominal RF channel bandwidth Modulation/ coding rate(1) – upstream – downstream Coding support Peak channel transmission rate per 5 MHz channel (except as noted) support (yes/no) Support for MIMO (yes/no) Duplex method Multiple access method Frame duration Mobility capabilities (nomadic/ mobile) IEEE 802.11n (Annex 1) 20 MHz 40 MHz Up and down : 64-QAM OFDM – 2/3, 3/4, 5/6 16-QAM OFDM 3/4 QPSK OFDM – 1/2, 3/4 BPSK OFDM – 1/2 CC and LDPC 75 Mbit/s Yes Yes TDD CSMA/ CA Variable frame duration Nomadic ETSI BRAN HiperLAN 2 (Annex 1) 20 MHz 64-QAM-OFDM 16-QAM-OFDM QPSK-OFDM BPSK-OFDM both upstream and downstream CC 6, 9, 12, 18, 27, 36 and 54 Mbit/s in 20 MHz channel (only 20 MHz channels supported) No No TDD TDMA 2 ms Nomadic ARIB HiSWANa (Annex 1) 4 × 20 MHz (5.15-5.25 GHz) 4 × 20 MHz (4.9-5.0 GHz) – BPSK 1/2 – BPSK 3/4 – QPSK 1/2 – QPSK 3/4 – 16-QAM 9/16 – 16-QAM 3/4 – 64-QAM 3/4 6-54 Mbit/s in 20 MHz No No TDD TDMA 2 ms Nomadic
IMT-2000 CDMA 2) 1.25 MHz and 3.75 MHz (cdma2000) 1.25-20 MHz (cdma2000 HRPD) 1.2520 MHz, 153.6 kHz granularity (UMB) Up: BPSK, QPSK, 8-PSK Down: QPSK, 8-PSK, 16QAM, (cdma2000) QPSK, 8-PSK, 16QAM, 64-QAM (cdma2000 HRPD) QPSK, 8-PSK, 16QAM, 64-QAM (UMB) turbo (cdma2000 and cdma2000 HRPD) turbo/ LDPC (optional) (UMB) Up: 1.8 Mbit/s per 1.25 MHz channel Down 3.1 Mbit/s Per 1.25 MHz (cdma2000) Up: 1.8 Mbit/s per 1.25 MHz channel Down: 4.9 Mbit/s Per 1.25 MHz channel (cdma2000 HRPD)Up: 75 Mbit/s for 20 MHz Down: 228 Mbit/s for 20 MHz (UMB) No (cdma2000 and cdma2000 HRPD) Yes (UMB) No (cdma2000 and cdma2000 HRPD) Yes (UMB) FDD (cdma2000 and cdma2000 HRPD) FDD/TDD (UMB) CDMA (cdma2000 and cdma2000 HRPD) CDMA and OFDMA (UMB) Down: 1.25, 1.67 2.5, 5, 10, 20, 40, 80 ms Up: 6.66, 10, 20, 26.67, 40, 80 ms (cdma2000) Down: 1.67, 3.33, Up: 1.67, 6.66, 13.33, 20, 26.67 (cdma2000 HRPD) Down: 0.911 ms Up: 0.911 ms (UMB) Mobile TABLE 7 (continued) Standard Nominal RF channel bandwidth Modulation/ coding rate(1) – upstream – downstream Coding support Peak channel transmission rate per 5 MHz channel (except as support (yes/no) Support for MIMO (yes/no) Duplex method Multiple access method Frame duration Mobility capabilities (nomadic/ mobile)
IMT-2000 CDMA TDD (Annex 2) 1.28 Mchip/sTDD option: Less than 1.6 MHz 3.84 Mchip/sTDD option: Less than 5 MHz 7.68 TDD option: Less than 10 MHz (E-UTRAN) 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz and 20 MHz 1.28 Mchip/s TDD option: Up: 8PSK, QPSK, 16-QAM, Down: 8-PSK, 16-QAM, QPSK 3.84 Mchip/sTDD option: Up: 16-QAM, QPSK Down: 16-QAM, QPSK 7.68 Mchip/s TDD option: Up: 16-QAM, QPSK Down: 16-QAM, QPSK (E-UTRAN) QPSK, 16-QAM, 64-QAM turbo 1.28 Mchip/s TDD option: Up: 2.2 Mbit/s / 1.6 MHz(2) Down: 2.8 Mbit/s / 1.6 MHz(2) 3.84 Mchip/s TDD option: Up: 9.2 Mbit/s Down: 10.2 Mbit/s 7.68 TDD option: Up: 17.7 Mbit/s / 10 MHz Down: 20.4 Mbit/s / 10 MHz Up: 75.3 Mbit/s / 20 MHz(3) Down: 302.7 Mbit/s / 20 MHz(3) Yes No (E-UTRAN) Yes TDD TDMA/ CDMA (E-UTRAN) OFDM in DL. in UL 1.28 Mchip/s TDD option: 10 ms Sub-frame length: 5 ms 3.84 Mchip/s TDD option: 10 ms 7.68 Mchip/s TDD option: 10 ms (E-UTRAN) 10 ms Sub-frame length: 1 ms Mobile TABLE 7 (continued) Standard Nominal RF channel bandwidth Modulation/ coding rate(1) – upstream – downstream Coding support Peak channel transmission rate per 5 MHz channel (except as support (yes/no) Support for MIMO (yes/no) Duplex method Multiple access method Frame duration Mobility capabilities (nomadic/ mobile)
IMT-2000 TDMA Single-Carrier (Annex 2) 2 × 200 kHz 2 × Dual 200 kHz 2 × 1.6 MHz Up: – GMSK – 8-PSK – QPSK, – 16-QAM, – 32-QAM – B-OQAM – Q-OQAM 0.329 – 1/1 Down: – GMSK – 8-PSK – QPSK, – 16-QAM, – 32-QAM – B-OQAM – Q-OQAM 0.329 – 1/1 Punctured convolu- code Turbo code Up: 16.25 Mbit/s 20.312 Mbit/s 40.625 Mbit/s Down: 16.25 Mbit/s 20.312 Mbit/s 40.625 Mbit/s Not explicit but not Not explicit but not precluded FDD TDMA 4.6 ms 4.615 ms Mobile IMT-2000 FDMA/TDMA (Annex 2) 1.728 MHz Up and down: GFSK π/2-DBPSK π/4-DQPSK π/8-D8-PSK 16-QAM, 64-QAM Depends on service: CRC, BCH, Turbo 20 Mbit/s Partial Partial TDD TDMA 10 ms Mobile IMT-2000 TDD WMAN (Annex 2) 5 MHz, 7 MHz, 8.75 MHz, 10 MHz Up: – QPSK-1/2, 3/4 – 16-QAM-1/2, 3/4 – 64-QAM-1/2, 2/3, 3/4, 5/6 Down: – QPSK-1/2, 3/4 – 16-QAM-1/2, 3/4 – 64-QAM-1/2, 2/3, 3/4, 5/6 CC/CTC Other options: BTC/ LDPC Up to 17.5 Mbit/s with SISO Up to 35 Mbit/s with (2 × 2) MIMO Up to 70 Mbit/s with (4 × 4) MIMO Yes Yes TDD FDD 5 ms Mobile