The Definitive Guide to Dual-mode Handsets
The Definitive Guide to Dual-mode Handsets
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The chapter concentrates on the transition of some RRM features such as the packet scheduler into NodeB. The adjustments in RRM capabilities of the network nodes brought about supplemental modifications of HSDPA air interface including introduction of higher‐order modulation and coding strategies, and modification with the MAC protocol architecture for enabling the quick scheduling in the BTS.
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软切换区： 定义软切换区，确保移动终端在进入新的切换区时能够及时地与新的基站建立连接。
Evolution-Data Optimized, often called EV-DO, is actually a telecommunications standard for wireless transmission of data through radio indicators, mainly Employed in broadband internet access. Released as a Section of the 3G CDMA (Code Division Multiple Access) digital network technological innovation, EV-DO delivers rapid data rates, thereby maximizing the mobile connectivity and Net access speeds for smartphone consumers and people making use of data playing cards on laptops together with other devices. Its principal purpose should be to facilitate superior-speed Online on mobile devices, thereby encouraging consumers stream films, browse the online, download apps, and use their devices for other World-wide-web-relevant responsibilities on the run.
Two novel, multi-antenna receiver constructions for MIMO running in frequency-selective fading environments that offer a significant reduction check here in complexity when compared with other MIMo equalizer buildings are developed.
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It's also real that have of utilizing HSDPA is very similar to that of applying fixed-line ADSL services.
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制式中，区分各个信道主要不再依靠频率和时隙等方法，同一地区不同用户同时使...
Evolution Data Only (EVDO) is usually a telecommunications standard for that wireless transmission of data as a result of radio indicators, primarily employed for broadband Web access.
Spread Spectrum and CDMA: EVDO employs spread spectrum tactics, which means it spreads the data sign over an array of frequencies.
Whenever a mobile is "searching", it can be aiming to discover pilot alerts about the network by tuning to specific radio frequencies and accomplishing a cross-correlation across all doable PN phases. A strong correlation peak website consequence indicates the proximity of a BTS.
This improvement was the culmination of collaborative endeavours involving telecommunications devices suppliers, standards companies, and mobile network operators.