183:. The technician that developed the tech support for all of the wireless technology was a man by the name of Myron Feasel he was brought from company to company ending up at Palm. Sierra Wireless sold PCMCIA devices and Airlink sold a serial modem. Both of these were used by police and fire departments for dispatch. Wireless later sold CDPD under the Wireless Internet brand (not to be confused with Wireless Internet Express, their brand for GPRS/EDGE data). PocketNet was generally considered a failure with competition from 2G services such as Sprint's Wireless Web. AT&T Wireless sold four PocketNet Phone models to the public: the Samsung Duette and the Mitsubishi MobileAccess-120 were AMPS/CDPD PocketNet phones introduced in October 1997; and two IS-136/CDPD Digital PocketNet phones, the Mitsubishi T-250 and the Ericsson R289LX.
29:
1267:
1256:
246:
The design of CDPD was based on several design objectives that are often repeated in designing overlay networks or new networks. A lot of emphasis was laid on open architectures and reusing as much of the existing RF infrastructure as possible. The design goal of CDPD included location independence
243:: specialized intermediate system that routes data based on its knowledge of the current location of Mobile end system. It is a set of hardware and software functions that provide switching, accounting, registration, authentication, encryption, and so on.
171:, sold the Seahorse product, which integrated the Newton handheld computer, an AMPS/CDPD handset/modem along with a web browser in 1996, winning the CTIA's hardware product of the year award as a smartphone, arguably the world's first. A company named
120:
were possible, though real world speeds seldom reached higher than 9.6 kbit/s. The service was discontinued in conjunction with the retirement of the parent AMPS service; it has been functionally replaced by faster services such as
186:
Despite its limited success as a consumer offering, CDPD was adopted in a number of enterprise and government networks. It was particularly popular as a first-generation wireless data solution for
247:
and independence fro, service provider, so that coverage could be maximized ; application transparency and multiprotocol support, interoperability between products from multiple vendors.
140:
Developed in the early 1990s, CDPD was large on the horizon as a future technology. However, it had difficulty competing against existing slower but less expensive
384:
283:
320:
1290:
862:
883:
1230:
58:
1110:
1122:
682:
409:
1060:
1034:
159:
first sold the technology in the United States under the PocketNet brand. It was one of the first products of wireless web service.
313:
17:
1190:
639:
1095:
536:
727:
306:
1105:
259:
794:
443:
364:
80:
271:
51:
806:
389:
339:
280:
232:: common host/server that is connected to the CDPD backbone and providing access to specific application and data
1195:
799:
369:
164:
1141:
1134:
1117:
101:
634:
555:
438:
429:
105:
1148:
595:
590:
41:
1260:
1090:
852:
846:
840:
789:
757:
359:
134:
45:
37:
1210:
818:
459:
1235:
347:
62:
1173:
1100:
526:
148:
systems, and never quite gained widespread acceptance before newer, faster standards such as
1178:
1163:
1153:
379:
374:
8:
1168:
1158:
190:
devices (machine to machine communications) and for public safety mobile data terminals.
180:
1271:
202:
1185:
1085:
1080:
957:
399:
329:
198:
156:
1129:
287:
275:
263:
1220:
1215:
1044:
661:
350:
221:: CDPD infrastructure elements that store, forward & route the information
1284:
1225:
298:
194:
160:
256:
1200:
947:
931:
564:
168:
109:
1029:
978:
888:
876:
268:
179:
devices. OmniSky then filed for bankruptcy in 2001 then was picked up by
655:
228:: subscriber unit to access CDPD network over a wireless interface 2.
187:
1008:
912:
811:
734:
701:
217:: physical & logical end systems that exchange information 2.
1242:
772:
739:
614:
545:
479:
474:
394:
172:
145:
141:
100:) is an obsolete wide-area mobile data service which used unused
951:
822:
722:
464:
404:
176:
117:
1039:
1024:
987:
974:
893:
871:
677:
469:
197:
announced plans to shut down CDPD service. In July 2005, the
126:
122:
1205:
903:
717:
585:
512:
149:
130:
625:
600:
521:
508:
484:
113:
239:: simple router with no knowledge of mobility issues 2.
1003:
926:
696:
498:
419:
16:"CDPD" redirects here. For British copyright law, see
1282:
50:but its sources remain unclear because it lacks
328:
314:
235:There are 2 kinds of Intermediate systems 1.
213:Primary elements of a CDPD network are: 1.
1291:First generation mobile telecommunications
321:
307:
208:
155:CDPD had very limited consumer products.
81:Learn how and when to remove this message
18:Copyright, Designs and Patents Act 1988
1283:
1191:Multimedia Broadcast Multicast Service
302:
1149:Spectral efficiency comparison table
224:There are 2 kinds of End systems 1.
116:to transfer data. Speeds up to 19.2
22:
13:
14:
1302:
250:
1265:
1254:
340:List of mobile phone generations
27:
281:Detailed Description About CDPD
241:mobile data intermediate system
193:In 2004, major carriers in the
165:original equipment manufacturer
205:CDPD networks were shut down.
1:
1261:Telecommunication portal
150:General Packet Radio Service
106:Advanced Mobile Phone System
94:Cellular Digital Packet Data
7:
237:Generic intermediate system
10:
1307:
758:CDMA2000 1xEV-DO Release 0
15:
1251:
1073:
1053:
1017:
1002:
967:
940:
925:
902:
861:
832:
782:
771:
750:
710:
695:
670:
648:
640:EDGE/EGPRS - Evolved EDGE
624:
613:
573:
565:D-AMPS (IS-54 and IS-136)
554:
535:
507:
497:
452:
428:
418:
346:
337:
112:between 800 and 900
152:(GPRS) became dominant.
135:High Speed Packet Access
127:Evolution-Data Optimized
36:This article includes a
1096:Comparison of standards
735:UTRA-TDD LCR / TD-SCDMA
269:History and Development
209:CDPD Network and system
65:more precise citations.
1101:Channel access methods
740:UTRA-TDD HCR / TD-CDMA
1272:Telephones portal
380:MTA - MTB - MTC - MTD
175:provided service for
889:iBurst (IEEE 802.20)
662:CDMA2000 1X Advanced
219:Intermediate systems
775:(3.5G, 3.75G, 3.9G)
617:(2.5G, 2.75G, 2.9G)
385:Mobile TeleSeratout
161:Digital Ocean, Inc.
1263:
849:(TIA/EIA/IS-856-B)
843:(TIA/EIA/IS-856-A)
841:1xEV-DO Revision A
286:2007-03-30 at the
274:2004-06-04 at the
262:2007-02-23 at the
181:EarthLink Wireless
38:list of references
1278:
1277:
1081:Cellular networks
1069:
1068:
998:
997:
921:
920:
767:
766:
723:UTRA-FDD / W-CDMA
691:
690:
658:(TIA/EIA/IS-2000)
609:
608:
493:
492:
226:Mobile end system
203:Cingular Wireless
199:AT&T Wireless
157:AT&T Wireless
104:normally used by
91:
90:
83:
1298:
1270:
1269:
1268:
1259:
1258:
1257:
1186:Mobile broadband
1086:Mobile telephony
1074:Related articles
1015:
1014:
958:LTE Advanced Pro
938:
937:
853:EV-DO Revision C
847:EV-DO Revision B
780:
779:
708:
707:
622:
621:
505:
504:
426:
425:
351:radio telephones
330:Cellular network
323:
316:
309:
300:
299:
257:CIO CDPD article
230:Fixed end system
167:licensee of the
86:
79:
75:
72:
66:
61:this article by
52:inline citations
31:
30:
23:
1306:
1305:
1301:
1300:
1299:
1297:
1296:
1295:
1281:
1280:
1279:
1274:
1266:
1264:
1255:
1253:
1247:
1154:Frequency bands
1065:
1049:
1007:
994:
963:
930:
917:
898:
857:
828:
774:
773:3G transitional
763:
746:
700:
687:
666:
644:
616:
615:2G transitional
605:
569:
550:
546:cdmaOne (IS-95)
531:
489:
448:
414:
342:
333:
327:
296:
293:
288:Wayback Machine
276:Wayback Machine
264:Wayback Machine
253:
211:
87:
76:
70:
67:
56:
42:related reading
32:
28:
21:
12:
11:
5:
1304:
1294:
1293:
1276:
1275:
1252:
1249:
1248:
1246:
1245:
1240:
1239:
1238:
1233:
1228:
1223:
1218:
1208:
1203:
1198:
1193:
1188:
1183:
1182:
1181:
1176:
1171:
1166:
1161:
1151:
1146:
1145:
1144:
1139:
1138:
1137:
1127:
1126:
1125:
1115:
1114:
1113:
1098:
1093:
1088:
1083:
1077:
1075:
1071:
1070:
1067:
1066:
1064:
1063:
1057:
1055:
1051:
1050:
1048:
1047:
1042:
1037:
1032:
1027:
1021:
1019:
1012:
1000:
999:
996:
995:
993:
992:
991:
990:
985:
971:
969:
965:
964:
962:
961:
955:
944:
942:
935:
923:
922:
919:
918:
916:
915:
909:
907:
900:
899:
897:
896:
891:
886:
881:
880:
879:
868:
866:
859:
858:
856:
855:
850:
844:
836:
834:
830:
829:
827:
826:
816:
815:
814:
804:
803:
802:
797:
786:
784:
777:
769:
768:
765:
764:
762:
761:
754:
752:
748:
747:
745:
744:
743:
742:
737:
732:
731:
730:
714:
712:
705:
693:
692:
689:
688:
686:
685:
680:
674:
672:
668:
667:
665:
664:
659:
652:
650:
646:
645:
643:
642:
637:
631:
629:
619:
611:
610:
607:
606:
604:
603:
598:
593:
588:
583:
577:
575:
571:
570:
568:
567:
561:
559:
552:
551:
549:
548:
542:
540:
533:
532:
530:
529:
524:
518:
516:
502:
495:
494:
491:
490:
488:
487:
482:
477:
472:
467:
462:
456:
454:
450:
449:
447:
446:
441:
435:
433:
423:
416:
415:
413:
412:
407:
402:
397:
395:Autotel (PALM)
392:
387:
382:
377:
372:
367:
362:
356:
354:
344:
343:
338:
335:
334:
326:
325:
318:
311:
303:
291:
290:
278:
266:
252:
251:External links
249:
210:
207:
89:
88:
46:external links
35:
33:
26:
9:
6:
4:
3:
2:
1303:
1292:
1289:
1288:
1286:
1273:
1262:
1250:
1244:
1241:
1237:
1236:Wi-Fi Calling
1234:
1232:
1229:
1227:
1224:
1222:
1219:
1217:
1214:
1213:
1212:
1209:
1207:
1204:
1202:
1199:
1197:
1196:NGMN Alliance
1194:
1192:
1189:
1187:
1184:
1180:
1177:
1175:
1172:
1170:
1167:
1165:
1162:
1160:
1157:
1156:
1155:
1152:
1150:
1147:
1143:
1140:
1136:
1133:
1132:
1131:
1128:
1124:
1121:
1120:
1119:
1116:
1112:
1109:
1108:
1107:
1104:
1103:
1102:
1099:
1097:
1094:
1092:
1089:
1087:
1084:
1082:
1079:
1078:
1076:
1072:
1062:
1059:
1058:
1056:
1052:
1046:
1043:
1041:
1038:
1036:
1033:
1031:
1028:
1026:
1023:
1022:
1020:
1016:
1013:
1010:
1005:
1001:
989:
986:
983:
982:
980:
976:
973:
972:
970:
966:
959:
956:
953:
949:
946:
945:
943:
939:
936:
933:
928:
924:
914:
911:
910:
908:
905:
901:
895:
892:
890:
887:
885:
882:
878:
875:
874:
873:
870:
869:
867:
864:
860:
854:
851:
848:
845:
842:
838:
837:
835:
831:
824:
820:
817:
813:
810:
809:
808:
805:
801:
798:
796:
793:
792:
791:
788:
787:
785:
781:
778:
776:
770:
759:
756:
755:
753:
749:
741:
738:
736:
733:
729:
726:
725:
724:
721:
720:
719:
716:
715:
713:
709:
706:
703:
698:
694:
684:
681:
679:
676:
675:
673:
669:
663:
660:
657:
654:
653:
651:
647:
641:
638:
636:
633:
632:
630:
627:
623:
620:
618:
612:
602:
599:
597:
594:
592:
589:
587:
584:
582:
579:
578:
576:
572:
566:
563:
562:
560:
557:
553:
547:
544:
543:
541:
538:
534:
528:
525:
523:
520:
519:
517:
514:
510:
506:
503:
500:
496:
486:
483:
481:
478:
476:
473:
471:
468:
466:
463:
461:
458:
457:
455:
451:
445:
442:
440:
439:AMPS - N-AMPS
437:
436:
434:
431:
427:
424:
421:
417:
411:
408:
406:
403:
401:
398:
396:
393:
391:
388:
386:
383:
381:
378:
376:
373:
371:
368:
366:
363:
361:
358:
357:
355:
352:
349:
345:
341:
336:
331:
324:
319:
317:
312:
310:
305:
304:
301:
297:
294:
289:
285:
282:
279:
277:
273:
270:
267:
265:
261:
258:
255:
254:
248:
244:
242:
238:
233:
231:
227:
222:
220:
216:
206:
204:
200:
196:
195:United States
191:
189:
184:
182:
178:
174:
170:
166:
162:
158:
153:
151:
147:
143:
138:
136:
132:
128:
124:
119:
115:
111:
110:mobile phones
107:
103:
99:
95:
85:
82:
74:
64:
60:
54:
53:
47:
43:
39:
34:
25:
24:
19:
1201:Push-to-talk
979:IEEE 802.16m
948:LTE Advanced
932:IMT Advanced
877:IEEE 802.16e
872:Mobile WiMAX
833:3GPP2 family
760:(TIA/IS-856)
751:3GPP2 family
649:3GPP2 family
628:/3GPP family
580:
444:TACS - ETACS
295:
292:
245:
240:
236:
234:
229:
225:
223:
218:
214:
212:
192:
185:
169:Apple Newton
154:
139:
97:
93:
92:
77:
68:
57:Please help
49:
1030:5G-Advanced
1018:3GPP family
968:IEEE family
960:(4.5G/4.9G)
941:3GPP family
783:3GPP family
711:3GPP family
656:CDMA2000 1X
527:CSD - HSCSD
215:End systems
63:introducing
884:Flash-OFDM
71:March 2013
984:WiMax 2.1
839:CDMA2000
332:standards
188:telemetry
102:bandwidth
1285:Category
1009:IMT-2020
913:HiperMAN
812:DC-HSDPA
702:IMT-2000
284:Archived
272:Archived
260:Archived
137:(HSPA).
1243:Osmocom
1091:History
1061:DECT-5G
1035:NR-IIoT
480:DataTAC
475:Mobitex
173:OmniSky
146:DataTAC
142:Mobitex
108:(AMPS)
59:improve
1045:NB-IoT
1011:(2021)
1006:(2018)
952:E-UTRA
934:(2013)
929:(2009)
906:family
865:family
823:E-UTRA
704:(2001)
699:(1998)
558:family
539:family
515:family
501:(1991)
432:family
422:(1979)
405:B-Netz
353:(1946)
177:Palm V
129:, and
118:kbit/s
1221:ViLTE
1216:VoLTE
1174:5G NR
1123:STDMA
1111:OFDMA
1054:Other
1040:LTE-M
1025:5G NR
988:WiBro
975:WiMAX
894:WiBro
807:HSPA+
800:HSUPA
795:HSDPA
678:WiDEN
671:Other
574:Other
537:3GPP2
470:Hicap
465:C-450
453:Other
370:Altai
123:1xRTT
44:, or
1231:ViNR
1226:VoNR
1206:MIMO
1179:CDMA
1164:UMTS
1142:SDMA
1135:CDMA
1130:SSMA
1118:TDMA
1106:FDMA
904:ETSI
863:IEEE
790:HSPA
728:FOMA
718:UMTS
683:DECT
635:GPRS
586:iDEN
581:CDPD
556:AMPS
513:3GPP
430:AMPS
390:AMTS
365:IMTS
201:and
144:and
131:UMTS
98:CDPD
1211:IMS
1169:LTE
1159:GSM
819:LTE
626:GSM
601:CT2
596:PHS
591:PDC
522:GSM
509:GSM
485:CT1
460:NMT
410:AMR
400:ARP
375:OLT
360:MTS
163:an
114:MHz
1287::
1004:5G
981:)
927:4G
697:3G
499:2G
420:1G
348:0G
125:,
48:,
40:,
977:(
954:)
950:(
825:)
821:(
511:/
322:e
315:t
308:v
133:/
96:(
84:)
78:(
73:)
69:(
55:.
20:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.