P PACCH, P PCH P Packet P Padding P Polarization P Polling P permanent P poll P prohibited P2 Proc 2 PA Platform Adaptor PA power amplifier PA1 Proxy Agent 1 PA2 Proxy Agent 2 PAA PDN Address Allocation PAA ProSe-Authorization-Answer PAB Phase Alignment Bit PAC Phase Alignment Command PAC Phase Alignment Control PAC Proxy Auto-Config PAF Policy Administration Function PAMR Public Access Mobile Radio PAN Personal Area Network PAN Personal Areal Network PAR Peak-Average Ratio PAR ProSe-Authorization-Request PAS Power Azimuth Spectrum PAS power angular spectrum PB Pedestrian B PBA Proxy Binding Acknowledgement PBCP Personal Broadcast Content Provider PBP Paging Block Periodicity PBS Personal Broadcast Service PBSP Personal Broadcast Service Provider PC Partial coverage PC Power Control PC Protocol Converter PC partial coverage PC power control PCA ProSe-Cancellation-Answer PCDE Peak Code Domain Error PCF Policy Control Function PCF Position Calculation Function PCF Positioning Calculation Function PCI Physical Cell Identifier PCI precoding control indication PCK Private Call Key PCM Power Control Mode PCM Pulse Code Modulation PCO Protocol Configuration Options PCP Priority code point PCR Peak Cell Rate PCR ProSe-Cancellation-Request PCS PAN Check Sequence PCS Personal Communications Services PCS Proactive Command Sending PD Pattern Duration PD Propagation Delay PD Protocol Discriminator PDA ProSe-Discovery-Answer PDB Packet Delay Budget PDCP Packet Data Compatibility Protocol PDCP Packet Data Convergence Protocol PDG Packet Data Gateway PDH Plesiochronous Digital Hierarchy PDHR Packet Data Header Reporting PDN Packet Data Networks PDP Packet Data Protocol PDP Power Delay Profile PDP packet Data Protocol PDPI Packet Discard Priority Indicator PDR Packet Detection Rule PDR Packet Detection Rules PDR ProSe-Discovery-Request PDSR Packet Data Summary Report PDSR Packet Data Summary Reporting PDU Protocol Data Unit PE Physical Entity PEC Post Event Charging PED Parameters Enhancing Delivery PEI Permanent Equipment Identifier PELR Packet Error Loss Rate PEMR Packet Enhanced Measurement Report PEO Power Efficient Operation PER Packed Encoding Rules PER Packet Error Rate PER Parameters Enhancing Reception PER packet error ratio PES PSTN/ISDN Emulation Subsystem PF Paging Frame PF Paging Frames PF Policy Function PFC Packet Flow Context PFD Packet Flow Description PFDF Packet Flow Description Function PFI Packet Flow Identifier PFK Participating Function Key PFSC Pitch Filtering Spectrum Coding PFT Packet Flow Timer PH Paging Hyperframe PH Power Headroom PHR Power Headroom Report PHR Power headroom reports PI PCH Indicator PI PFI Indicator PI Page Indicator PI Paging Indication PI Presentation Indicator PIA Point In Association PIC Point In Call PICS Protocol Implementation Conformance Statement PIDF Presence Information Data Format PIE Priority Information Element PII Personally identifiable information PIK ProSe Integrity Key PIM Personal Information Manager PIN Personal IoT Network PIR Packet Inter-Reception PL Packet Loss PL Preferred Layer PL Priority Level PL Puncturing Limit PL preferred layer PL protection level PLA Provide-Location-Answer PLAMBRI Per-link aggregate maximum bit rate indicator PLB Packet loss burst PLC Packet Loss Concealment PLI Picture Loss Indication PLMN Public Land Mobile Network PLMN Public Land Mobile Networks PLMN Public Land Mobile network PLMN Public Lands Mobile Network PLMN Public land mobile network PLMN public land mobile networks PLR Packet Loss Rate PLR ProSe-LocationUpdate-Request PLR Provide-Location-Request PLR packet loss ratio PM Performance Management PM Policy Management PMA ProSe-Match-Answer PMCR Packet Match Compressed Reference PMD Physical Media Dependent PMD pseudonym mediation device PMF Path Management Function PMF Performance measurement function PMFP Performance measurement function protocol PMI Precoding Matrix Indicator PMIC Port Management Information Container PMR ProSe-Match-Request PMR Professional Mobile Radio PMT Program Map Table PN Paging Narrowband PN Personal Network PN Personal Numbering PN parameter negotiation PNA Presence Network Agent PNA ProSe-Notify-Answer PNA Push-Notification-Answer PNA Push-Notifications-Answer PNE Personal Network Element PNF Physical Network Function PNM Personal Network Management PNP Private Numbering Plan PNR ProSe-Notify-Request PNR Push-Notification-Request PO Paging Occasion PO Paging Occasions PO Phase-only POI Point of Interception POI Privacy Override Indicator PPA Push-Profile-Answer PPD Paging Policy Differentiation PPI Packet Priority Indicator PPI Paging Policy Indicator PPI Paging Priority Indicator PPI payload protocol identifier PPP Paging Policy Presence PPP Priority, Precedence, Preemption PPP Prototype-Pitch-Period PPPP ProSe Per-Packet Priority PPPR ProSe Per-Packet Reliability PPR Push-Profile-Request PPU Pilot's Portable Unit PQ Perceptual Quantization PQFI PC5 QoS flow identifier PR Paging restriction PR Power Reduction PRA Presence Reporting Area PRAS Premises Radio Access System PRB Physical Resource Block PRC Pseudo-Range Correction PRCF Positioning Radio Control Function PRM Power Resume Mode PRR Packet reception ratio PRR Port Range Router PRRC Pseudo-Range Rate Correction PRRM Position Radio Resource Management PRRM Positioning Radio Resource Management PRS Positioning Reference Signal PRS Positioning Reference Signals PRS Public Regulated Services PS Packet Scheduling PS Packet Switched PS Presence Server PS Provisioning Server PS Provisioning Service PS packet scheduling PS packet switched PSA PDU Session Anchor PSA PLMN Selection Assistance PSA Public Safety Authority PSAP Public Safety Answering Point PSAP Public-Safety Answering Point PSC Power Saving Control PSC Primary Scrambling Code PSC primary synchronisation code PSD Power Spectral Density PSDK Public Safety Discovery Key PSE Personal Service Environment PSE Policy Storage Entity PSI Primary System Information PSI Public Service Identity PSK Pre-Shared Key PSM Power Saving Mode PSMF Position Signal Measurement Function PSMF Positioning Signal Measurement Function PSP PAS similarity percentage PSPL Preferred Service Provider List PSPL Preferred Service Providers List PSS Packet Streaming Server PSS Packet Switch Streaming PSS Packet Switched Streaming PSS Primary Synchronization Sequence PSS Primary synchronization signal PSSME Provider Service Security Management Entity PSTN Public Switched Telecommunications Network PSTN Public Switched Telephone Network PSTN Public Switched Telephone Networks PT Payload Type PT Protocol Termination PT Protocol Type PTC Packet Transport Channel PTCRB PCS Type Certification Review Board PTI Procedure Transaction ID PTI precoder type indication PTI precoding type indicator PTI procedure transaction identity PTM Point To Multipoint PTM Point-To-Multipoint PTMSI Packet Temporary Mobile Station Identity PTP Point-to-Point PTW Paging Time Window PUA Presence User Agent PUA Profile-Update-Answer PUA Purge-UE-Answer PUR Preconfigured uplink resources PUR Profile-Update-Request PUR Purge-UE-Request PVA Platform Validation Authority PVF Policy Verification Function PVQ Pyramid Vector Quantization PVT Public Validation Token PWS Public Warning System