General packet radio service (GPRS) is a packet oriented mobile data service available to users of the 2G cellular communication systems global system for mobile communications (GSM), as well as in the 3G systems. In the 2G systems, GPRS provides data rates of 56-114 kbit/s.
標(biāo)簽： service packet available oriented
上傳時(shí)間： 2013-12-04
上傳用戶：894898248
Android的radio Interface Layer (RIL)提供了電話服務(wù)和的radio硬件之間的抽象層。radio Interface Layer RIL(radio Interface Layer)負(fù)責(zé)數(shù)據(jù)的可靠傳輸、AT命令的發(fā)送以及response的解析。應(yīng)用處理器通過AT命令集與帶GPRS功能的無線通訊模塊通信。AT command由Hayes公司發(fā)明，是一個(gè)調(diào)制解調(diào)器制造商采用的一個(gè)調(diào)制解調(diào)器命令語言，每條命令以字母"AT"開頭。
標(biāo)簽： Interface radio Layer RIL
上傳時(shí)間： 2013-12-10
上傳用戶：pinksun9
Retrieving list of known operators using radio Interface Layer (RIL) Windows Mobile
標(biāo)簽： Retrieving Interface operators Windows
上傳時(shí)間： 2014-12-02
上傳用戶：sqq
cognitive radio system matlab simulation
標(biāo)簽： simulation cognitive matlab system
上傳時(shí)間： 2017-07-29
上傳用戶：lijianyu172
With the Wireless module, OPNET can model both terrestrial and satellite radio systems. In this tutorial, you will use Modeler and Wireless modeling to create a radio network you will also observe variations in the quality of received signal that results from radio noise at the receiving node in a dynamic network topology.
標(biāo)簽： terrestrial satellite Wireless systems
上傳時(shí)間： 2017-08-06
上傳用戶：xwd2010
this is a document about radio frequency identification RFID, this was a project ,i have done last year ,actually this technology is a very inpotrtant one due to its relation with newest technologies , like GPS , or the miniturization of integrated circuits ,and that is described in chapter 3 . chapter 1 gives an introduction of the technology RFID , chapter 2 gives a discussion of a library using RFID , and chapter 3 is about the future of RFID , and finally the conclusion .
標(biāo)簽： this identification frequency document
上傳時(shí)間： 2014-01-10
上傳用戶：gtzj
cognitive radio book .Dynamic spectrum access chapters
標(biāo)簽： cognitive chapters spectrum Dynamic
上傳時(shí)間： 2013-12-17
上傳用戶：kytqcool
bass radibass radio 1.0o 1.0
標(biāo)簽： 1.0 radibass radio bass
上傳時(shí)間： 2013-12-15
上傳用戶：569342831
This book provides the reader with the basics in radio engineering, the techniques needed to generate, control, detect, and use radio waves. The text approaches the relevant problems both from the electromagnetic theory based on Maxwell抯 equations and from the circuit theory based on Kirchoff and Ohm抯 laws. Brief introductions to the electromagnetic theory as well as to the circuit theory are provided. Besides passive transmission lines and components, active RF circuits are also addressed.
標(biāo)簽： the engineering techniques provides
上傳時(shí)間： 2014-01-17
上傳用戶：rocketrevenge
The goal of this thesis is the development of traffic engineering rules for cellular packet radio networks based on GPRS and EDGE. They are based on traffic models for typical mobile applications. Load generators, representing these traffic models, are developed and integrated into a simulation environment with the prototypical implementation of the EGPRS protocols and models for the radio channel, which were also developed in the framework of this thesis. With this simulation tool a comprehensive performance evaluation is carried out that leads to the traffic engineering rules.
標(biāo)簽： development engineering cellular traffic
上傳時(shí)間： 2014-01-11
上傳用戶：Miyuki
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