The best Side of 3GPP2 standards
The best Side of 3GPP2 standards
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It truly is mainly used to deliver high-pace internet to mobile devices, offering a responsible connection that allows multimedia usage and data access on the run.
There is No delicate handover and that's why pico-cells overlap in exact creating and may generate self interference
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数字信号相乘，由于伪随机码速率快，扩展了传输带宽（伪随机码带宽远大于信号带宽，扩展信号频谱），在接收端，用相同的伪随机码序列
The Walsh House not devoted to broadcast channels about the BTS sector is available for targeted visitors channels. These channels have the individual voice and data calls supported by IS-95. Like the paging channel, website traffic channels Have got a frame time of 20ms.
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Appropriately, capacity improves with SNR and bandwidth. IS-95 has a hard and fast bandwidth, but fares properly while in get more info the digital environment as it takes Energetic actions to boost SNR.
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It is value noting that though EVDO had varied applications, its importance diminished over time as 4G LTE and 5G networks provided more quickly speeds plus much more Sophisticated capabilities, rendering EVDO obsolete in lots of areas.
速率分配： 根据调度结果和用户信道条件动态地分配每个用户的数据速率。
The receiver also takes advantage of the procedures from the rake receiver to improve SNR in addition to carry out gentle here handoff.
Both of those UMTS and CDMA2000 can perform with the LTE technological innovation to supply 4G speeds for their shoppers. LTE necessities are specified by 3GPP, and it streamlines the mobile network check here evolution by also allowing for 3GPP2-led CDMA2000 to employ LTE for 4G.
Other ahead channels, chosen by their Walsh code, carry data in the network to the mobiles. Data is made of network signaling and consumer visitors. Generally, data to generally be transmitted is divided into frames of bits.