Meanwhile, mobile operators are seeking out LTE licenses. Twenty carriers will launch by the fourth quarter. Population coverage lags WiMAX but will catch up, reaching 600 million people by the end of 2012. LTE coverage will start in urban hotspots but carriers indicate they will push coverage rapidly in order to handle the increasing mobile data wave.
The 4G market could well have 150 million subscriptions by 2014. The split between WiMAX and LTE will depend on WiMAX carrier commitments to upgrade to 802.16m. WiMAX vendors such as Motorola and Huawei are gearing up to offer "802.16e+" which will bring features of 802.16m to the current market. Many companies in the ecosystem are already working on interoperability testing for 802.16m.
"TD-LTE is the wildcard," said VP for forecasting Jake Saunders. "It was originally primed as an evolutionary technology for TD-SCDMA carrier China Mobile, but has been gaining interest from some WiMAX carriers. Both camps will be frantically trying to ramp up IC wafer manufacturing, product portfolios and population coverage. There will be considerable scrutiny over the next few years."
ABI practice director Philip Solis added, "Some WiMAX service providers may switch from WiMAX to TD-LTE, but others are doing this partly as insurance and partly to assure investors of an alternate path so they may go forward with WiMAX. This is something for smaller greenfield service providers to consider. Large mobile operators will move forward with LTE whether it be on FDD or TDD spectrum. Clearwire can do both WiMAX and LTE if it wants to since it has the spectrum to do so."
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