CDMA接收机射频问题探讨（英文文章）

chuiminggan

【文件名】:08123@52RD_RF system issues related to CDMA receiver specifications(1).pdf
【格　式】:pdf
【大　小】:83K
【简　介】:A guide to the derivation of the essential RF front-end system level and block level specifications for the receiver section of a CDMA mobile station.
【目　录】:Wireless code division multiple access (CDMA) networks, based
upon the IS-95 standard and protocol developed by Qualcomm, are being deployed, worldwide.

GMAJFUU

[em03][em03]又要钱。

john019

W
standards
ireless code division multiple access (CDMA) networks, based
upon the IS-95 standard and protocol developed by Qualcomm, are being deployed, worldwide.
The harsh wireless environment, in which these CDMA phones must coexist with other multi-standard mobile phones, impose tough system conditions on the radio. These conditions demand a high performance radio RF front-end and DSP back-end. This is especially applicable when trying to decode the speech information present in a received signal with a carrier-to-interference ration (C/I) < 0 dB. This article, will discuss the minimum RF standards for the CDMA cellular mobile station receiver section. Such standards are described in the TIA/EIA/IS-98-A interim standard document [1]. Understanding these minimum standards allows us to