The chapter concentrates on the transition of some RRM functions such as the packet scheduler into NodeB. The improvements in RRM functions of your network nodes brought about more modifications of HSDPA air interface which includes introduction of higher‐get modulation and coding techniques, and modification of your MAC protocol architecture for enabling the quickly scheduling in the BTS.
There is not any delicate handover and that's why pico-cells overlap in same setting up and will generate self interference
Locale-Based Services: EVDO enabled place-primarily based services, like navigation and location monitoring, by offering a dependable data relationship for accessing map data and GPS information.
移动通信中，将话音信号转换为数字信号，给每组数据话音分组增加一个地址，进行扰码处理，并且将它发射到空中。
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LTE is definitely the 4G migration route for all 3G mobile networks, such as CDMA2000 and UMTS. HSPA is the same know-how to EVDO but it really belongs to the UMTS networks.
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Multi-provider shipping and click here delivery performs an important function in improving The client experience. By giving many transport selections, businesses can cater to diverse purchaser Tastes, making certain timely and trustworthy deliveries.
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High quality of Support mechanisms are used to prioritize differing kinds of data site visitors, ensuring that point-delicate applications like voice calls are supplied priority over significantly less time-sensitive data site visitors.
保密通信 ：扩频信号在频域上与噪声无异，增加了信号截获的难度，增强了通信的保密性。
数据包调度： 基站根据各个用户的信道质量、历史数据和实时反馈对数据包进行调度。
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