index_A

A

ABM establishment, 367 “68

Absolute radio frequency channel (ARFC), 15

Access bursts (ABs)

defined, 32

multislot power vs. time masks for, 131

structure, 33

Access grant channel (AGCH), 17

Access point name (APN), 338

ACK/NACK request period, 262 “64

downlink TBF, 262 “64

uplink TBF, 264

ACTIVATE SECONDARY PDP CONTEXT ACCEPT message, 350

Activation procedure, 343 “45

initiated by GGSN, 343 “45

initiated by MS, 343

secondary, 349 “50

See also PDP context

Addressing

bearer channel (BC), 275

BSSGP virtual connections (BVCs), 278

example, 279

illustrated , 276

network service entity (NSE), 277 “78

network service virtual connections (NS-VCs), 277

network service virtual links (NS-VLs), 276 “77

over Gb interface, 275 “80

PVC, 276

Allocation

cell , 187

dynamic, 80 “81

extended dynamic, 81 “82

fixed, 82

GPRS mobile, 188 “89

modes, 79 “83

MS radio resource, 257 “62

PDCH, 257 “59

radio resource, 208 “37

resource, strategy, 254 “62

scheme comparison, 82 “83

time slot, 255

Amplitude modulation (AM), 154

AM suppression, 137 “38

Asynchronous disconnected mode (ADM), 367

Attach procedure for circuit-switched services, 320

Authentication

center (AuC), 13

of GPRS subscriber, 328

principles, 96, 97

procedure, 326 “27

AUTHENTICATION and CIPHERING request message, 327

Automatic gain control (AGC)

constraints, 168 “69

loop mechanism, 168

parameters, 168 “69

Automatic repeat request (ARQ), 237

Autonomous cell reselection , 189, 195 “96

procedure for (C1, C2), 195 “96

procedure for (C1, C31, C32), 196

See also Cell reselection