16, 121 OC (OpenCellular) 30 PBBN (Provider Backbone Bridge Network) OFDM (Orthogonal Frequency Division Multiplexing) 99-108, 110, 111, PBCH (Physical Broadcast Channel) 101, 113-116, 118, 121, 208, 249, 260 104, 105, 107, 117, 118, 120, 121, OIF (Optical Internetworking Forum) ONAP (Open Networking Automation PBR (Prioritized Bit Rate) 85 Platform) 8, 30, 283, 284, 293 PCE (Path Computation Element) 369, 377 OPEN-O (OPEN-Orchestrator Project) PCell (Primary Cell) 151, 164 OPEX (Operational Expenditure) 15, 19, 25, PCF (Policy Control Function) 196, 278, 279, 296, 351, 381, 387, 390 52, 53, 341, 344, 364 Option 1 130, 133, 137, 346, 368, 370, 374, PCI (Physical Cell Identity) 71, 148, 339 PCP (Priority Code Point) 369, 370 Option 2 130, 134, 135, 137, 139, 190, 346, PCRF (Policy and Charging Rules Function) 370, 391, 392, 394, 395 40, 42, 50-52 Option 3 130, 134, 135, 391 PDB (Packet Delay Budget) Option 4 130, 135, 391 PDCCH (Physical Downlink Control Option 5 130, 135, 391, 392 Channel) 85, 86, 97, 107-109, 117, Option 6 130, 135, 214, 218, 222, 227, 391 118, 197, 224-226, 264 Option 7 130, 136, 138, 191-194, 196, 197, PDH (Plesiochronous Digital Hierarchy) 218, 226, 346, 391, 392, 394 351, 358, 363, 377 Option 8 130, 136, 137, 191-193, 368, PDN (Packet Data Network) 39, 40, 42, 49, 52, 189, 247, 250 ORI (Open Radio equipment Interface) PDSCH (Physical Downlink Shared Channel) 138, 139 109, 111, 114, 115, 117, 118, 121, 196, OSA (OpenAirInterface Software Alliance) 197, 224, 225, 331 PDV (Packet Delay Variation) 348, 372 OSI (Other System Information) 107, 296, PE (Provider Edge) 361 PF (Paging Frame) OSM (Open Source MANO) PFD (Power Flux Density) OSS (Operations Support System) 132, 133, PGW (PDN Gateway) 42-44, 49-52 283, 284, 305, 307, 313 PGW-C (PGW Control-plane Function) OTA (Over-the-air) 248 OTN (Optical Transport Network) 347,352, PHY (Physical Layer) 3, 59, 79, 128, 358, 367, 368 130-137, 140, 142-144, 153, 192-198, OVS (Open Virtual Switch) 291 214, 218, 219, 222-229, 232, 241, 243, OWAMP (One-Way 