Analysis of LTE technical characteristics
According to foreign media reports, American telecommunications operator AT & T has just signed an agreement with Ericsson and Alcatel-Lucent to build a 4G mobile communication network using long-term evolution (LTE) technology. LTE will also be a key topic of the upcoming Mobile World Congress in Barcelona one. So what are the advantages of LTE technology?
Here are some important facts about LTE technology.
Low operating expenses, high traffic carrying capacity
-Due to the popularity of wireless network cards and smart phones, the existing wireless networks of major operators are increasingly congested. Operators must invest heavily in LTE networks to improve this situation.
-It is expected that LTE technology will not significantly promote marketing, especially in mature markets. Lower operating and expansion costs and new wireless spectrum are the main reasons for operators to invest in this technology.
-LTE technology does not have much advantage in higher-end 3G technology in terms of bandwidth utilization. According to Mikko Valtonen, a technical expert from consulting agency Rewheel, it is currently predicted that the new network will increase the traffic carrying capacity by five to six times, but this is mainly due to the application of more than four times the wireless spectrum.
-Industry consulting firm Chetan Sharma pointed out that by transforming the existing network with high-speed packet access (HSPA, high-end 3G technology) and LTE, it will save major operators a total of $ 25 billion by 2013 in the United States alone.
Speed ​​advantage is not outstanding
-LTE network technology will allow data download speed up to 100M per second, but the general download speed is 10-30M per second, 3G network is not much different from it.
-For general Internet users, 1-2M per second download speed is sufficient.
-From the consumer's point of view, the massive transmission of mobile phone data began with the development of 3G technology. Although it was only 0.4M per second at the beginning, with the upgrade of HSDPA technology, the speed has increased to several M per second.
price problem
-Rewheel said that from the perspective of economic rationality, the cost of laying an LTE network should not exceed the cost of a 3G network, and the cost of upgrading network capacity should not be higher than one-tenth of the cost of increasing HSPA network.
-Antonios Drossos, a partner at Rewheel, believes that LTE has not caused a technological revolution. Therefore, communication tool manufacturers also need to make fundamental changes to the pricing of their commercial communication tools in order to realize their commitment to reduce the cost per M.
-Laying a separate network for LTE is basically not feasible. Instead, operators want to upgrade their backward 2G and 3G equipment to advanced integrated equipment.
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