b'\n_START_ARTICLE_\nW-CDMA\n_START_PARAGRAPH_\nW-CDMA (Wideband Code Division Multiple Access) ir bezvadu sakaru standarts tre\xc5\xa1\xc4\x81s paaudzes (3G) mobilo telesakaru t\xc4\xabklos._NEWLINE_W-CDMA 1990. gadu beig\xc4\x81s izstr\xc4\x81d\xc4\x81ja Jap\xc4\x81nas mobilo sakaru operators NTT DoCoMo savan 3G t\xc4\xabklam FOMA, kur\xc5\xa1 s\xc4\x81ka darboties 2001. gad\xc4\x81. V\xc4\x93l\xc4\x81k NTT DoCoMo \xc5\xa1o standartu nodeva Starptautiskajai telesakaru savien\xc4\xabbai (ITU). ITU apstiprin\xc4\x81ja W-CDMA k\xc4\x81 da\xc4\xbcu no 3G standartu IMT-2000 saimes un alternat\xc4\xabvu sist\xc4\x93m\xc4\x81m CDMA2000, EDGE un DECT (lok\xc4\x81l\xc4\x81m bezvadu telefonu sist\xc4\x93m\xc4\x81m). V\xc4\x93l\xc4\x81k W-CDMA tika izmantots UMTS t\xc4\xabklos._NEWLINE_W-CDMA izmanto tie\xc5\xa1\xc4\x81s sec\xc4\xabbas spektra papla\xc5\xa1in\xc4\x81\xc5\xa1anas tehnolo\xc4\xa3iju (DS-CDMA) un frekvences dal\xc4\xab\xc5\xa1anas duplekso (FDD) metodi, lai sasniegtu augstu datu p\xc4\x81rraides \xc4\x81trumu un apkalpotu vair\xc4\x81k lietot\xc4\x81ju nek\xc4\x81 l\xc4\xabdz tam izmantot\xc4\x81s tehnolo\xc4\xa3ijas TDMA (laika dal\xc4\xab\xc5\xa1anas daudzpiek\xc4\xbcuve) un TDD (laika dal\xc4\xab\xc5\xa1anas dupleks\xc4\x81 metode).'