2-373 Open Base Station Architecture Initiative (OBSAI), LTE, commercial networks, 2 LTE-Advanced, 19 Open Subscriber Groups (OSG), 70 LTE bearer architecture, 216 Operating Expenditure (OPEX), 147 LTE coexistence with Wi-Fi, 166 operating system in smartphones, 393 LTE-unlicensed (LTE-U), 4, 57, 159, 424 out-of-band small cells, 65 out-of-sync, 222-224, 226 machine-to-machine (M2M), 4, 29 Over-the-Top (OTT) VoIP, 398 mapping throughput to RSRP, 357 mapping throughput to RSRQ, 355 PO_PUCCH 213, 260 mapping throughput to SINR, 353 PO PUSCH(j), 212, 258 massive MIMO, 190, 429 packet bundling, 314 Master Cell Group (MCG), 49 packet cells from smartphones, 383 Master eNodeB (MeNodeB), 46 Packet Data Convergence Protocol (PDCP), 17 mean opinion score (MOS), 315-321, 327-329 packet loss, 315-316, 319-321, 365 measurement gap, 344-347, 349-350, 367-368, packet scheduling, 93 packet switched handover (PSHO), 303, 305 measurement process, 334, 338, 345, 368 path loss, 203, 204, 206, 212-213, 238, 245, 250, Message 2, See Random access response 257-259, 328, 350, 352, 358-359, 363-364, Message 3, See RRC connection request 368-369, 374-375 Message 4, See RRC connection setup PCMAX, 204-205, 211-213, 258 Message 5, See RRC connection setup complete peak to average, 267, 280, 284 messaging applications, 394 perceptual objective listening quality assessment micro base station, 78 (POLQA), 315-317, 319-322, 327-329 MIMO (multiple input multiple output), 196, phase synchronization, 100 234-236, 238-241, 250, 269, 287, 327, 353-354, physical broadcast channel (PBCH), 12 physical downlink control channel (PDCCH) Minimization of Drive Testing (MDT), 67 performance, 12, 200-206, 208-211, 213, 221-223, minimum coupling loss (MCL), 78 226, 249-250, 271, 276-279, 287, 312-314, 319, minimum mean square error (MMSE) receiver, 14 353-354, 356, 371, 375 mobile data growth, 3 physical downlink shared channel (PDSCH) Mobile Terminating Roaming Forwarding (MTRF), performance, 12, 200, 203-206, 210, 240, 250, 300-301 271-272, 276, 313, 320, 3