 358, 363 252, 254, 265, 275, 331 SDN (Software Defined Networks) 176-178, RRH (Remote Radio Head) 125, 129, 138, 188, 189, 215, 237, 246, 283, 284, 347, 394, 395 353, 368, 369, 373, 374, 376 RRM (Radio Resource Management) 126, SDO (Standards Developing Organization) 132, 134, 136, 141, 142, 176, 179, 188, 26-28, 193 SDR (Software-Defined Radio) 294, 295, 191, 274, 330, 335, 336 298, 299, 301 RSSI (Received Signal Strength Indicator) SDU (Service Data Unit) 84, Security 45, 57, 66, 67, 73, 74, 82, 83, 88-94, RSU (Road-side Unit) 322 96, 157, 163-164, 169, 171, 172, 186, RSVP (Resource Reservation Protocol) 369, 187, 201, 242, 247, 255, 256, 359, 365, 370, 377 367, 369, 370, 372-374 RTT (Round Trip Time) 268, 269, 316, 393 SFI (Slot Format Indicator) RU (Radio Unit) 125, 129, 130, 137, SFN (System Frame Number) 191-202, 207-211, 286-291, 346-349, SGSN (Serving GPRS Support Node) 40, 50 353, 354, 363, 364, 391, 392, 394 SGW (Serving Gateway) 40, 42-44, 50-52 RV (Redundancy Version) 268, 269 SGW-C (SGW Control-plane Function) 42, SI (System Information) 84, 86, 146, 149, S-NSSAI (Single Network Slice Selection 151, 154 Assistance Information) SIB (System Information Broadcast) 55, 56, 97, 228 S1-AP (S1 Application Protocol) 64, 171, SIB1 (System Information Block 1) 97, 107, 172, 174 109, 148, 152, 154 SAS (Spectrum Access System) SLA (Service Level Agreement) SBA (Service-based Architecture) 38, 374 361, 363, 380, 383 SC (Software Community) 301, 302 SMF (Session Management Function) 40, SCEF (Service Capability and Exposure 42-49, 52, 53, 63, 189, 341, 344, 364 Function) 41, 43 SN (Secondary Node) 61, 71-73, 82, 84, 92, SCell (Secondary Cell) 156, 157, 160-174, 185 SCG (Secondary Cell Group) 156, 157, 161, SNPN (Stand-alone Non-public Network) 162, 165-173, 185 54, 55 SCS (Subcarrier Spacing) 101, 102, 104, 106, SO (Segment Offset) 84, 324 195, 271 SoC (System on a Chip) 218-220, 229, 231 SCTP (Stream Control Transmission Protocol) SON (Self-organizing Network) 133, 62, 64, 65, 71, 77, 78, 141, 144, 145, 229, 326