base station system 中文意思是什麼
base station system
解釋
基站系統-
Test results show that under 2 - tone test in 5mhz tone spacing, the power amplifier system achieves - 50dbc imd3 with 20w output power, improved 20db in imd3 compared with the one without linearity. estimated value of aclr comes to 53db, which satisfies the 3gpp requirement for wcdma base - station transistor. further tests with alterative input power indicate a steady suppression to the imd3 controlled by the adaptive system
測試結果表明，自適應前饋功放系統在雙音輸出功率20w時三階交調系數小於- 50dbc ，鄰通道泄漏抑制比（ aclr ）的估算結果大於53db ，在理論上滿足3gpp對wcdma基站發射機的指標要求。 -
This pattern diversity antenna has been used as the base station antenna in the mimo experimental system and several results have been obtained
將該天線作為基站天線用於mimo實驗系統平臺上進行了一系列的實驗，對一些典型的實驗現象和實驗數據進行了分析討論。 -
Sgsn 900 1800mhz tdma digital cellular mobile communication network test method of gprs general packet radio service base station system and serving gprs support node interface
900 1800mhz tdma數字蜂窩移動通信網通用分組無線業務gprs基站子系統與服務gprs支持節點 -
Base station identity code. an attribute of a gsm ( global system for mobile communications ) cell which is a code allowing a distinction between local cells having the same radio frequency
基站識別碼。 gsm （全球移動通信系統）蜂窩小區的一個屬性，通過基站識別碼，不同的本地蜂窩小區可以使用相同的無線頻率。 -
The smart antenna, which is adapted in the wireless mobile communication system, in fact, forms an antenna with a high gain. thus communication in all directions can be proceeded, then base station antenna coverage, system capacity and service quality are improved, also inter - symbol interferes and multi - access interfere are reduced. the space division multiple access ( sdma ) is introduced, and users can be distinct from each other through their special location
在無線移動通信系統中採用智能天線技術，實際上是通過數字信號處理，使天線陣為每個用戶自適應地進行波束賦形，相當于為每個用戶形成了一個可跟蹤它的高增益天線，從而即可以進行全方位通信，也可以用較小的發射功率覆蓋相同的范圍以及提高系統容量和業務質量、降低用戶間的碼間干擾和多址干擾。 -
According to this requirement, the railway mobile digital communication system based on the gsm system for mobile communication is put forward in this paper to accomplish the data transfer between the control center and the locomotive. in this paper, the design of the ms ( the mobile station ) and the erected bs ( the base station ) out of the gsm cover is carried out. last we discuss the key techniques of the railway mobile digital communication system, the handoff and the error _ correct coding
本文針對這種要求，在gsm移動通信系統的基礎上提出了建立電力機車移動數字通信網以實現機車與控制中心之間的數據傳輸的方案，設計了系統中車載移動臺、 gsm覆蓋區外自建基站的基本構造，分析了系統中越區切換、糾錯編碼等關鍵技術，並詳細的闡述了其實現方法。 -
First of all, the development of the digital trunked communication system is summarized, and the technical characteristics of several prevail worldly digital trunked communication systems are compared. in view of the domestic situation, the tetra digital trunked radio communication system is chosen as the studying and developing model. with the study of control technology of softswitch, the protocol of the v + d air interface and the multiple use of channel is analyzed, the base station control unit of the digital trunked communication system is discussed, the calling control flow is designed
本文首先綜述了數字集群移動通信系統的發展狀況，針對目前國際上流行的數字集群體制的技術特點進行了比較和分析，並根據我國的具體國情選擇了tetra數字集群系統作為研究和開發的重點，結合對軟交換控制技術的研究和分析，對集群系統重要的v + d空中介面協議及其通道復用進行了較為深入的剖析，對數字集群實驗系統的基站控制部分進行了論述，對呼叫控制流程進行了設計。 -
Based on the control feather and the demand of base station exchanging data with exchange - center through ethernet, in this article the embedded arm9 is taken as the core cpu to build the arm hardware platform, and embedded linux as the operation system, which is convenient for controlling and the development of software
針對基站控制器的控制特性和與交換中心需要通過以太網聯接交換數據的要求，本文構建基站控制的硬體平臺選擇了嵌入式arm9處理器作為核心cpu ，以嵌入式linux作為操作系統以方便使用控制以及今後應用程序的開發。 -
Base station system management application part bssmap
基站系統應用管理部分 -
In the paper, the realization methods of high availability ( ha ) and data storage in ha system of my project, which are based on cpx8216 base station system frame, are proposed. to guarantee the ha of the system, in hardware layer, the 2n redundancy mode for the overall system, n + 1 redundancy mode for the partial system and hot restart work mode are applied. and in software layer, software designs corresponding to the hardware redundancy mode and for the availability of the overall system, and suitable software for checking, controlling and arranging the equipments, are adopted
本文著重闡述項目系統中對高可用性的研究和部分的高可用性的實現，項目系統採用了cpx8216框實現基站的通信業務功能，為了保證整個系統的高可用性，採用了主、備用的2n備份模式，採用熱重啟的工作模式，在系統局部採用的n + 1備份方式，從硬體上保證了系統的可用性；在軟體設計上配合硬體的備份模式，保證整個系統的可用性，同時還採用合理的軟體檢測控制，調度設備，進一步提高系統的可用性。 -
For implement of wide band modulation, multi - carries and elimination of adjacent channel interference to satisfy ber requirement in wcdma system, which is most popular in 3g technology, the linearity requirement of the base station power amplifier becomes tighter
以wcdma為代表的第三代移動通信技術，為實現寬帶調制、多載波應用，同時減小鄰通道干擾以滿足通信系統的誤碼率要求，對基站發射機功放的線性指標要求苛刻。 -
Communication acceptance range is one of the important issues to be considered during design. through theory analysis, simulation and experiment on ocean, reliable communication can be achieved as distance between base station and buoy increasing up to 15 kilometer, which guarantees the system ' s tracking range
通信距離是系統設計時需重點考慮的問題之一，通過理論分析、模擬和海上拉距的實驗結果，證實所設計的通信系統可以達到15km的通信距離（基站與浮標間） ，這也是保證系統跟蹤范圍的一個重要依據。 -
With the key technology of sotdma, automatic identification system ( ais ) is used to communicate between ais base station and ship, ship and ship, assist navigation in marine traffic management system with the intention of making marine navigation more safe
船舶自動識別系統（ automaticidentificationsystem ，簡稱ais ）是以自組時分多址（ sotdma ）為核心技術，實現船舶交通管理系統的船-岸、船-船間的通信及輔助導航，避免船舶間的碰撞，用於提高航行的安全。 -
Base station system operation and maintenance application part
基站子系統操作與維護應用部分 -
In this scheme, data rates in probabilistic manner according to a reverse activity bit ( rab ) and an adaptive probability value broadcasted by the base station are increased or reduced in data mobiles, whereas the adaptive probability value is dynamically adjusted on the basis of the residual capacity of system
在該演算法中，數據移動臺根據基站廣播的反向激活比特和自適應概率值以概率方式升降速率，其中自適應概率值根據系統剩餘容量動態地調整。 -
In the mo method the user ' s location information ( cell _ id ) is got by ms from bts ( base station system ) and ms sends the information to smg ( short message gateway ) in short message form, then the smg sends the message includeing cell _ id to the smsc ( short - message service center ) finally the smsc sends the message to lcs ( locating server ). the lcs will find corresponding longitude and latitude from database by cell _ id then send the longitude and latitude to the location demander
在mo方式中，用戶的位置信息（ cell _ id ）通過手機直接從基站臺（ bts ）取得，並以短消息的方式上發到簡訊網關（ smg ） ， smg將包含cell _ id的短消息上報到簡訊中心（ smsc ） ，並通過簡訊中心發給定位服務器。 -
The emc problem of broadband wireless access base station and intersystem frequency interference of 3g communication systems are very important. for these problems, the researches are as follows : firstly, the emc problem of broadband wireless access system was discussed, and the structure and consisting characteristic for different broadband wireless access systems were analyzed. three emc characteristics are summarized as follows : 1
其中，寬帶無線接入基站的電磁兼容（ emc ）問題以及3g通信系統中的系統間的頻率干擾問題尤為突出，本文針對這些問題進行了下列研究:第一，綜合討論了寬帶無線接入系統的電磁兼容問題，分析了各種寬帶無線接入系統的結構和組成特點，總結了寬帶無線接入系統的三大emc特點: 1 .雷電電磁脈沖（ lemp ）對基站的干擾; 2 .信息設備的寬頻帶輻射干擾; 3 . 3g通信系統中的系統間頻率干擾。 -
Regional data collecting system ( rdcs ) generally composed of micro base - station and data collecting terminals with transducers in it. its communication distance is often within 10 kilometers, and the message transmitted is short
區域數據採集系統指通信距離小於10公里，由微型基站和內含傳感器團簇的數據採集終端組成的短數據通信系統。 -
At present, el interface based on g703 is widely applied group network, relay network, gsm mobile base station and military communication for the purpose to transmit voice signals, data, pictures and etc. in this paper, the author firstly analyses the developing tendency and status quo of nowadays digital loop system
目前，建立在g703基礎上的e1介面在分組網、幀中繼網、 gsm移動基站及軍事通信中得到廣泛的應用，傳送語音信號、數據、圖像等業務。 -
Base station system management application part
基站子系統管理應用部分
分享友人