ACH formats 111 Networks (PSTN) 185 short sequence PRACH structure 112 PUSCH Demodulation Reference Physical Resource Block (PRB) 88, 102, 116 Signal (DMRS) 123 Physical Uplink Control Channel PUSCH processing chain 124 (PUCCH) 123-126 PUT method 58 long PUCCH 127, 128 short PUCCH 126, 127 Physical Uplink Shared Channel (PUSCH) 77, 123 Quadrature Amplitude platform testing 378 Modulation (QAM) 117 Index Quadrature Phase Shift Keying (QPSK) 116 Resource Elements (REs) 88, 118 Quality of Service RESTful interfaces, 5G system 58 (QoS) 20, 138, 176, 279, 330, 336, 361 AF services 71 flows, establishing 183, 184 AMF services 59-61 Quasi-Colocation (QCL) 121 AUSF services 67 NEF services 69, 70 NRF services 70 NSSF services 71, 72 rack redundancy 253 PCF services 68, 69 Radio Access Network SMF services 61-63 (RAN) 175, 195, 286, 291, 355 UDM services 63-66 radio access planning 248 UDR services 66, 67 Radio Access Technology (RAT) 261 REST, in 5G NFs Radio Access Technology (RAT) fallback 188 cacheable 55, 56 network architecture 189 layered system 56 Radio Equipment Control (REC) 261 stateless 56 Radio Frequency (RF) 270 uniform interface 57 Radio Link Control (RLC) 21, 75, 270 Return On Investment (ROI) 283, 349 Radio Network Temporary Road Side Unit (RSU) 312 Identifier (RNTI) 116 roaming 231 Radio Resource Control robust automation framework (RRC) 21, 93, 116, 270 benefits 371-375 Radio Unit (RU) 21, 22, 272 router and switch redundancy 253 RAN-as-a-Service (RANaaS) model 263 RRC Release with Redirection 188 random access preamble 110, 111 Real-time Transport Protocol (RTP) 176, 185 Receivers (Rx) 198 SA network architecture 199 Remaining Minimum System satellite backhaul 351 Information (RMSI) 99, 118 satellite bent pipe architecture 354 Remote Radio Heads (RRHs) 22, 261 satellite communications Remote Units (RUs) 21 (SATCOM) 339-344 Representational State Transfer (REST) 54 5G use cases 360-365 benefits 54 challenges 350 Representational State Transfer considerations 346 (REST) model 52 with 5G 351 Requests for 