The chapter focuses on the changeover of some RRM functions such as the packet scheduler into NodeB. The alterations in RRM functions of your network nodes brought about further modifications of HSDPA air interface such as introduction of higher‐buy modulation and coding techniques, and modification on the MAC protocol architecture for enabling the rapid scheduling inside the BTS.
码片同步 ：指接收端的扩频码与发送端的扩频码在码片时序上的同步。这一过程需要解决码片时序的捕获和跟踪问题，通常采用滑动相关法、匹配滤波法等技术实现。
There are a selection of how to uncover the right specification or to hunt the this means of a piece prepare acronym. This part will present you with means to find the spec. and How to define the know-how regions covered by 3GPP.
A frame of bits is passed through a convolutional encoder, adding forward error correction redundancy, producing a frame of symbols. These symbols are then spread with the Walsh and PN sequences and transmitted.
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是利用电磁波的反射特性来探测目标。雷达发射机产生特定频率、波形的电磁波，经由天线向空间定向辐射，形成具有一定方向性的波束。当波束遇到目标物体时，电磁波会在目标表面发生反射，其中部分反射波沿着原路返回被雷达天线接收，接收机对微弱的回波信号进行放大、滤波、解调等一系列精细处理，提取出目标的距离、方位、速度等关键信息。这一过程如同向黑暗中投掷石子，通过聆听回声来判断周围物体的位置
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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...
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。
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自适应功率控制算法 ：根据实时通信环境和用户状态动态调整参数，以实现更优的控制效果。
Should you have an interest in incorporating 3GPP2 products (for example textual content, figures, illustrations, equations) right into a document to get posted possibly in print or electronically, you will have to comprehensive the "Authorization to breed 3GPP2 Elements" variety. 3GPP2 Industry Notices