wcdma填空题1（WCDMA fill in the blanks 1）.docVIP

wcdma填空题1（WCDMA fill in the blanks 1） WCDMA fill in the blanks, 1.txt wait too long to get things, most of them have not originally wanted. A layer of a cool autumn rain, a valve and a fragrance, as time since unforgettable, a busy but nowhere to hide. Happy life nine words: there is hope, something to do, someone to love. Women and women as friends, to the attitude of the green leaves, but also hidden red flowers scheming. This article is contributed by li117208 DOC documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. Fill in the blanks (0.5 points per space, one blank, each blank, 30 points each.) The technical specification of the 1. UMTS system is set up by the ETSI organization. The uplink frequency range of the UMTS core frequency band is 1920~1980MHZ, and the downlink frequency range is 2. 2110~2170MHZ. In UMTS system, the spread spectrum coding name used in WCDMA wireless channel is OVSF, in which the spreading factor of uplink is varied from 4~256. WCDMA the channel bandwidth of each carrier is 5MHZ. Three 9311 Node B cabinet configuration of a iCCM card, Iub interface supports a maximum of _8_ E1 transmission; on the board of the iCCM is displayed on the E1 status LED indicator, the indicator light is green channel, red _ breaker. 4. 5. In UMTS systems, the Uu interface includes the wireless channel types, respectively Logical channel, transmission channel, physical channel. 926 D2U Node B rack size is * * width * height is 251mm*482.6mm*88.1mm, rated DC supply voltage is -48V__, Iub interface transmission link, the maximum support E1 number is _8 road. 6. according to the physical model of UMTS, the user equipment domain is divided into two parts, among them through the open interface to communicate with each other, these two parts are 7. user service recognition unit and _ mobile devices, the interface between them is CU. Antenna port. Main feeder In the outdoo