1 Reply Latest reply on May 15, 2013 6:25 PM by Jeian

    True answer for Network Types and Services

    Jeian

      The term "generation" used to name successive evolutions of radio networks in general is arbitrary. There are several interpretations of it, and no official definition has been made despite the large consensus behind ITU-R's labels. From ITU-R's point of view, 4G is equivalent to IMT-Advanced which has specific performance requirements as explained below. But according operators, a generation of network refers to the deployment of a new non-backward-compatible technology. This usually corresponds to a huge investment with its own depreciation period, marketing strategy (if any), and deployment phases. It can even be different among operators. From the end user's point of view, only performance and cost makes sense. It is expected that the next generation of network performs better and cheaper than the previous generation, which is not that simple to state. Indeed, while a new generation of network arrives, the previous one can keep evolving to a point where it outperforms the first version of the new generation. In many countries, GSM, UMTS and LTE networks still coexist. It is thus much less ambiguous to use the name of the technology/standard, possibly followed by its version number, than a subjective arbitrary generation number which is destined to be challenged endlessly.

        • Re: True answer for Network Types and Services
          Jeian

          Comparison of mobile Internet access methods,

           

                  NAME                  Primary use         Radio Tech                    DL Mb/s                UL Mb/s                          Notes

          UMTS W-CDMA
          HSDPA+HSUPA

           

          UMTS/3GSM

          General 3GCDMA/FDD

          CDMA/FDD/MIMO
          0.384
          14.4
          0.384
          5.76
          HSDPA is widely deployed. Typical downlink rates today 2 Mbit/s, ~200 kbit/s uplink; HSPA+ downlink up to 56 Mbit/s.

          EDGE Evolution

           

          GSM

          Mobile InternetTDMA/FDD1.60.53GPP Release 7

          LTE

           

          3GPP

          General 4GOFDMA/MIMO/SC-FDMA100 Cat3
          150 Cat4
          300 Cat5
          (in 20 MHz FDD) [26]
          50 Cat3/4
          75 Cat5
          (in 20 MHz FDD)[26]
          LTE-Advanced update expected to offer peak rates up to 1 Gbit/s fixed speeds and 100 Mb/s to mobile users.

          UMTS-TDD

           

          UMTS/3GSM

          Mobile InternetCDMA/TDD16Reported speeds according to IPWireless using 16QAM modulation similar to HSDPA+HSUPA

          EV-DO Rel. 0
          EV-DO Rev.A
          EV-DO Rev.B

           

          CDMA2000

          Mobile InternetCDMA/FDD2.45
          3.1
          4.9xN
          0.15
          1.8
          1.8xN
          Rev B note: N is the number of 1.25 MHz chunks of spectrum used. EV-DO is not designed for voice, and requires a fallback to 1xRTT when a voice call is placed or received.

          HSPA+

           

          3GPP

          Used in 4GCDMA/FDD
          MIMO
          21
          42
          84
          672
          5.8
          11.5
          22
          168
          HSPA+ is widely deployed. Revision 11 of the 3GPP states that HSPA+ is expected to have a throughput capacity of 672 Mbit/s.

          Wi-Fi

           

          802.11
          (11n)

          Mobile InternetOFDM/MIMO288.8 (using 4x4 configuration in 20 MHz bandwidth) or 600 (using 4x4 configuration in 40 MHz bandwidth)

          Antenna, RF front end enhancements and minor protocol timer tweaks have helped deploy long range P2P networks compromising on radial coverage, throughput and/or spectra efficiency (310 km & 382 km)

          WIMAX rel2

           

          802.16m

          WirelessMANMIMO-SOFDMA2x2 MIMO
          110 (20 MHz TDD)
          183 (2x20 MHz FDD)
          4x4 MIMO
          219 (20 MHz TDD)
          365 (2x20 MHz FDD)
          2x2 MIMO
          70 (20 MHz TDD)
          188 (2x20 MHz FDD)
          4x4 MIMO
          140 (20 MHz TDD)
          376 (2x20 MHz FDD)
          Also, low mobility users can aggregate multiple channels to get a download throughput of up to 1 Gbit/s[27]

           

          Wimax rel 1

           

           

          802.16

          WirelessMANMIMO-SOFDMA37 (10 MHz TDD)17 (10 MHz TDD)With 2x2 MIMO.[27]
          Flash-OFDMMobile Internet
          mobility up to 200 mph (350 km/h)
          Flash-OFDM5.3
          10.6
          15.9
          1.8
          3.6
          5.4
          Mobile range 30 km (18 miles)
          extended range 55 km (34 miles)
          HIPERMANMobile InternetOFDM56.9 

          Wimax Rel 1.5

           

          802.16-2009

          WirelessMANMIMO-SOFDMA83 (20 MHz TDD)
          141 (2x20 MHz FDD)
          46 (20 MHz TDD)
          138 (2x20 MHz FDD)
          With 2x2 MIMO.Enhanced with 20 MHz channels in 802.16-2009[27]

          iBurst

           

          802.20

          Mobile InternetHC-SDMA/TDD/MIMO9536Cell Radius: 3–12 km
          Speed: 250 km/h
          Spectral Efficiency: 13 bits/s/Hz/cell
          Spectrum Reuse Factor: "1"