UE的注册流程 is a project mainly written in , based on the .协议36.508 4.5节 有个表格写的很清楚： Table 4.5.2.3-1: UE registration procedure (state 1 to state 2)...
Overall Comparision With WCDMA is a project mainly written in , based on the ....
RRC Connection Reconfiguration is a project mainly written in , based on the .RRC Connection Reconfiguration Dir: E-UTRAN -> UE SRB: SRB1 这个消息用来修改RRC连接，主要目的： 1. To establish/modify/release Radio Bearers; Ø 无线承载 2. To per...
VOLTE parameter in Attach Request/Accept message is a project mainly written in , based on the .VOLTE字面上是:Voice over LTE. 但是人们所提到的VOLTE,实际上是指“Voice over LTE utilizing IMS” Attach Request/Accept消息中包含了VOLTE相关的参数。 1. Attach request 参考: 3GPP 24.301 – 8.2.4...
探测参考信号（Sounding Reference Signal） is a project mainly written in , based on the .SRS是探测参考信号的缩写，所谓参考信号，那么是为谁提供参考？参考的指标是什么？答案是为eNodeB的调度提供参考，参考的内容是为上行信道质量做参考。 那么为什么需要SRS呢？众所周知，在LTE网络中，eNodeB通常是分配系统带宽的一部分区域给特定的UE，也就是在一个特定时间、给UE分配特定的频率区域资源，此时若eNodeB...
LTE中基本通信过程的理解——上行调度 is a project mainly written in , based on the ....
LTE MIBSIB1 is a project mainly written in , based on the .LTE MIB/SIB1 LTE MIB/SIB 消息可以参考：http://blog.csdn.net/wowricky/article/details/51348613 UE 接受完MIB/SIB1后就可以判断这个CELL是否可以驻留，这里仅仅讨论与驻留 (Camp on)相关的参数。 1. MIB 包含BW/PHICH/...
会计考证 is a project mainly written in , based on the .会计考证主要分为2个分支： 1. 注册会计师(CPA: Certified Public Accountant) 2. 会计职称考试 细节参考如下： 注意： 1. 会计从业资格证书 · 简称会计证； · 每年需要继续教育； 2. 注册会计师 · 没有会计证，也可报名参加； 3. 会计职称考试 · 会计证...
什么是DCI? 它有什么用？ is a project mainly written in , based on the .当你学习LTE的物理帧(physicalframe)结构时,你肯定会有所体会：”靠，怎么这么复杂啊”.物理帧结构是时域 (Time Domain)、频域(Frequency Domain)和调制方式（modulation scheme）的组合。 你可能会有疑问：”接收方怎么知道发送方在那个slot以什么调制方式发送了数据呢？也就是说...
傅里叶变换的参考文档 is a project mainly written in , based on the .https://betterexplained.com/articles/an-interactive-guide-to-the-fourier-transform/ http://blog.jobbole.com/70549/...
如何向非技术人员解释“稀疏傅里叶变换”算法？ is a project mainly written in , based on the .【伯乐在线导读】：这个问题来自 Quora，下面是来自 Tanooj Luthra 的回复。 让我们来演奏一架想象中的钢琴。 钢琴的每个琴键都对应一个特定频率的声音。例如，一个比较有名的频率是国际标准音A（440赫兹）。当有琴键按下时，你听到的声音是一个完美的正弦波，振荡在440赫兹。同样，中央C对应的频率约为261赫兹声波...
3G重选至4G--基于优先级 is a project mainly written in , based on the .3G重选至4G--基于优先级 1. Specification 1.1 Measurementrules 是否需要开启测量 3GPP 25.304 - 5.2.6.1.2aMeasurement rules for inter-frequency and inter-RAT cell reselection when...
Control Channel Element (CCE) is a project mainly written in , based on the .1. CCE是PDCCH的资源单元 (resourceunit)。 A PDCCH is transmitted on one CCE or anaggregation of several consecutive CCEs, where a CCE corresponds to 9 Resource ElementGr...
What is acceptable cell and suitable cell in LTE? is a project mainly written in , based on the .The difference between acceptable cell and suitable cell in LTE is given below. acceptable cell In a area where UE is not able to find any suitable cell to camp on...
ARM 的几个重要特点 is a project mainly written in , based on the .ARM 采用RISC指令集 ARM: Acorn RISC Machine; //Acorn: 公司的名字 它支持的指令比较简单，所以功耗小、价格便宜，特别合适移动设备。 RISC 和CISC的区别： 举例子，乘加运算，比如： y=a*b + c; 在CISC里面，有专门的乘加指令，一条指令就可以搞定； 而在RISC，有可...
LTE-怎么获取上行资源 is a project mainly written in , based on the .LTE中，UE如果要发送上行数据(Control sig or Data)，需要上行pusch资源，如果没有被分配pusch的话，则需要申请。 有3种方法进行申请： 这3中方法对应不同的场景，详细逻辑如下：...
LTE CRS 时频资源 is a project mainly written in , based on the .在36.211-6.10.1.2有详细的公式，如下：...
LTE SIB1时频资源 is a project mainly written in , based on the .参考3GPP 36.331 – 5.2.1.2Scheduling The SystemInformationBlockType1 uses a fixed schedule with a periodicity of 80 msand repetitions made within80 ms. Thefirst transmiss...
LTE MIB 的发送周期 is a project mainly written in , based on the .参考3GPP – 36.212 EnodeB在发送PBCH的时候，会根据天线端口来选择不同的CRC mask, 见下图。因此，UE在解码PBCH时，就可以获取当前cell 对应的天线端口数目。...
LTE Paging消息的接收 is a project mainly written in , based on the .Paging消息的内容如下： 在idle和connected 下，UE可以分别接受如下信息： RRC 状态对应的Paging消息内容Idle1.系统消息改变 2. ETWS 3.呼叫请求Connected1.系统消息改变 2. ETWS 寻呼消息的设计初衷是： UE在idle态下，UE和eNodeB并没有建立RRC 连接，网...