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INDEX 765traffic channels, 396UTRAN air interface, 436–452call sequences, 450–452frequency-division duplex mode, 438medium access control sublayer, 447–448logical channels, 447–448network model, 437–438physical channels, 444–446physical layer, 442–447frames and slots, 443–444scrambling codes, 442spreading codes, 442–443power control, 438radio link control sublayer, 448–449radio resource control sublayer, 449–450signaling, 438–441channel structure, 439–441messages, 441terminology, 437time-division duplex mode, 438transport blocks, 447transport channels, 446–447Codingcode-division multiple access (CDMA)networks, 390–394chipping codes, 393coding/decoding example, 391–392direct sequence, 390–391PN codes, 394spread spectrum, 390Walsh codes, 393–394Q.931 ISDN information elements (IEs), 251CollectedAddressInfo parameter, advancedintelligent networks (AINs), 538CollectedDigits parameter, advanced intelligentnetworks (AINs), 538Collision avoidance, local area networks(WANs), 633Color codes, cellular mobile networks, 352Combined control channels, cellular mobilenetworks, 330Combined paging and access indicator (CPA),AMPS overhead parameter messageformat, 345Commands, Gateway Control Protocol(GCP), 695Common Assignment Channel (F-CACH),cdma2000 interface, 414–415, 418Common-Channel Interoffice Signaling (CCIS)historical background, 112Telephone User Part (TUP) protocol, 201Common channel multiplex sublayer (CCMS),cdma2000 air interface, 423–426Common-channel signaling (CCS). See alsoChannel-associated signaling (CAS)access systems, 131applications of, 45–46associated networks, 113–114basic components, 44–46basic networks, 113–115Bell system network, 116–118cyclic redundancy checking, 124–125message sequencing, 123–124mixed signaling networks, 118overview, 111–112quasiassociated networks, 113, 115reliability and load sharing, 115–116signaling end points, 113signaling links, 112, 119signaling point networks, 112signaling relation networks, 112signaling route networks, 113signal transfer points, 113signal units, 119–120terminal elements and operation, 122–123terminal functions, 120–121error control, 121monitoring, 121synchronization, 120–121Common control channels (CCCHs)cdma2000 air interface, 414–415,419–420GSM system, 366–367Common signaling channel (CSC)access networks, GR-303 standard, 132analog lines, 136–137access systems, GR-303 standard, 133Communication channels, Voice over InternetProtocol, 653Communications Standards Association (CCSA)(China), signaling standards, 51Comparator (COMP) equipmentBell System multifrequency supervisionsignaling, talk-off protection, 85common-channel signaling, cyclicredundancy checking, 125echo canceler, 31Compatibility checking, Digital SubscriberSignaling System No. 1 (DSS1), 264Compelled signaling, MRC-R2 interregistersignaling, 95–97Complex multiplier, cdma2000 air interface,code channels, 414–415, 417Component identifiers, Transaction CapabilitiesApplication Part (TCAP), 511–512United States national TCAP, 513