Top Packet Core Network Secrets
Top Packet Core Network Secrets
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Также немаловажную роль играет низкая излучаемая мощность радиопередатчиков абонентских устройств.
There isn't a gentle handover and that's why pico-cells overlap in same constructing and may generate self interference
The activity is to locate the final congestion window sizing when the many packet drops are being encountered because of the sender. The TCP Reno
We need to differentiate among peak and average data rates when comparing mobile data speeds. The height velocity is the maximum velocity the mobile network can technically permit. In contrast, the standard pace is what a person normally receives once the signal has travelled in the foundation station to multiple person devices simultaneously. The peak data rates with HSDPA are fourteen.four Mbps for downloads, and the height data rates with HSUPA are five.
Each BTS dedicates a significant degree of output electric power into a pilot channel, which can be an unmodulated PN sequence (Put simply, spread with Walsh code 0). Each BTS sector during the network is assigned a PN offset in techniques of sixty four chips.
Полоса частот одного канала очень широка, вещание абонентов накладывается друг на друга, но, поскольку их коды модуляции сигнала различаются, они могут быть дифференцированы аппаратно-программными средствами приёмника.
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HSPA has actually been extensively deployed by mobile operators as a method to enhance the general performance of their 3G networks and supply a better assistance to their buyers.
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As of the writing, HSDPA deployments remain Section of the 1st stage. In the 2nd period, HSDPA devices will be able to reach approximately 42 Mbps data rates. This is quicker than a few of now’s land-based mostly broadband connections.
There is absolutely no data carried to the forward pilot. With its powerful autocorrelation function, the ahead pilot lets mobiles to find out system timing and distinguish distinctive BTSs for handoff.
频谱利用率高： 多载波技术可以更有效地使用有限的频谱资源，提高频谱利用率。