亚洲中久无码不卡永久在线观看_五月天在线视频婷婷播放_AV中文字幕不卡一_亚洲性爱免费视频观看

蜂窩式移動電話：cellular mobile telephone

服務(wù)性能：services performance

頻譜：frequency spectrum

頻帶：frequency band

微處理器：microprocessor

移動手機：mobile unit

廣播業(yè)務(wù)：broadcast service

天線：antenna

子系統(tǒng)：subsystems

移動用戶：mobile subscriber

服務(wù)能力：service capability

利用率：utilization

帶寬：bandwidth

單邊帶：single-sideband

擴頻：spread spectrum

大規(guī)模集成電路：large scale integrated circuits

蜂窩點：cellular site

蜂窩交換機：cellular switch

無線機架：radio cabinet

呼叫處理：call processing

頻譜利用率：frequency spectrum utilization

有限的指定頻帶：the limited assigned frequency band

服務(wù)區(qū)：service area

復(fù)雜的特性和功能：complicated features and functions

大規(guī)模集成電路技術(shù)：large-scale integrated circuit technology

試驗性的蜂窩系統(tǒng)：developmental cellular system

中央?yún)f(xié)調(diào)單元：central coordinating element

蜂窩管理：cellular administration

傳統(tǒng)移動電話的運行限制：operational limitation of conventional mobile telephone system

有限的服務(wù)能力：limited service capability

無線通信行業(yè)：radio communication industry

可用的無線電頻譜：available radio frequency spectrum

所分配的頻帶：the allocated frequency band

移動收發(fā)信機：mobile transceiver

技術(shù)上的可行性：technological feasibility

嚴(yán)格的頻譜限制：severe spectrum limitations

調(diào)頻廣播業(yè)務(wù)：FM broadcasting services

傳播路徑衰耗：propagation path loss

多徑衰耗：multipath fading

電話公司地方局:telephone company zone offices