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Wireless channel on August 25 China's 3G networks fully operational for two years, two years we have experienced the lack of 3G coverage, peak speed crash, network tariff is too expensive, etc. .variety of issues. .Not on before the bubble is located in Beijing's Zhongguancun area, went through two base stations to upgrade. .The first is to increase the base station Unicom and room subsystems, so that bubbles inside the office where the 3G signal has been an unprecedented increase. .Second, it is moving, moving companies use experienced colleagues in the morning without a signal or signal instability, and found that TD-SCDMA Internet speed has been significantly improved. .Twice within two months of network upgrading, we feel that we should test the current actual speed of the 3G network. .
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tests conducted in the office area
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Through the network without network upgrade, the location of the photo, whether mobile or China Unicom, are difficult to obtain full cell signal, especially in China Unicom, at this location is never be .3G signal. .The upgrade of the signal, see below. .
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very sorry, forgot to take pictures off WiFi when iPhone4 a
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Although 3G, the full grid of signal does not represent a faster transmission speed, but at least it represents the signal strength. .The test of time, we specifically selected to work in a normal period, from 9:00 to 16:00, this time for 3G networks, but also the peak period of use. .
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The test card
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From left to right, followed by Huawei to support China Unicom's WCDMA network E261, this card does not support HSPA +. .Telecommunications center is to support the ZTE CDMA2000 network AC580, we choose to connect Telecom's 3G network, rather than Telecom's WiFi. .The far right is the billion-pass technology from the X5, the TD-SCDMA mobile network. .
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Before testing, all to remember that the first three cards are supported on the theoretical maximum speed of the network to work with the following results compared. .
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Unicom maximum download speed of 14.4Mbps ? 1.8MB / s upload 5.75Mbps ? 700KB / s
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Telecommunication maximum download speed of 3.1Mbps ? 390KB / s upload 1.8Mbps ? 225KB / s
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Mobile download speeds up to 2.8Mbps ? 350KB / s upload 1.6Mbps ? 200KB / s
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Test project, we use SpeedTest test, HTTP methods to download from the official website Tencent QQ, and the use of the Thunder from the drive home to download 95MB file size in three ways. .
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Before the test we have two concerns:
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The first is that the test results for the final move is not being too embarrassed? .I think since the TD-SCDMA mobile network has been in operation for two years, although the results and is far from satisfactory, but lower than the starting point of the TD of WCDMA networks, the real hope is the next generation of TD-LTE, so if the latter .tests that we should not test scores alone called, I was editing Fifty Cent Party of China Unicom, we can according to the above theoretical speed mobile networks to do the comparison. .
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The second is that this speed test how to reflect the various network cost. .I am here, first I tell you is that the approach it. .I will be with each of the standard tariff, compared to current market rates and uniform charges into the market in MB, and for telecommunications, in minutes as a unit, which we should be able to clearly see that each network cost .the pros and cons. .
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