CDMA for cellular systems can be describ

资格题库2022-08-02 34

问题 CDMA for cellular systems can be described as follows. As with FDMA， each cell is allocated a frequency ( ) ，which is split into two parts, half for reverse (mobile unit to base station) and half for (本题) (base station to mobile unit). For full-duplex ( ) . a mobile unit uses both reverse and forwardchannels. Transmission is in the form of direct-sequence spread ( ) , which uses a chipping code to increase the data rate of the transmission, resulting inan increased signal bandwidth. Multiple access is provided by assigning ( ) chipping codes to multiple users, so that the receiver can recover the transmission of an individual unit from multiple transmissions.A.forwardB.reverseC.backwardD.ahead

选项

答案 A

解析

转载请注明原文地址:https://tihaiku.com/congyezige/2405238.html

本试题收录于：中级网络工程师题库软件水平考试初中高级分类

中级网络工程师

软件水平考试初中高级

相关试题推荐

随机试题

最新回复(0)

CDMA for cellular systems can be describ

中级网络工程师

软件水平考试初中高级

Insoftwareengineeringandsystemsengineeri

SoftwareEngineeringisbestdescribeda

Mostoperatingsystemshaveastandards