/
|
Get Bonus Downloads Here.url
|
0.2 KB
|
/01 - Introduction/
|
001 How to use the English subtitles for this Course.html
|
0.2 KB
|
002 List-of-Acronyms.pdf
|
31.9 KB
|
002 Standardization of 5G-Evoultion from 1G to 5G.mp4
|
35.9 MB
|
002 Standardization of 5G-Evoultion from 1G to 5G_en.srt
|
5.2 KB
|
003 ITU-R Vision for 5G.mp4
|
43.3 MB
|
003 ITU-R Vision for 5G_en.srt
|
6.6 KB
|
003 tr-138913v140200p.pdf
|
333.9 KB
|
004 Use Cases-Enhanced Mobile Broadband, Massive Machine Type Communication, URLLC.mp4
|
20.5 MB
|
004 Use Cases-Enhanced Mobile Broadband, Massive Machine Type Communication, URLLC_en.srt
|
5.0 KB
|
005 5G Standardization Road map.mp4
|
2.2 MB
|
005 5G Standardization Road map_en.srt
|
1.0 KB
|
/.../02 - Moving from 4G to 5G-Non-standalone Vs Standalone Architectures/
|
001 Introduction to 5G Architecture.mp4
|
6.9 MB
|
001 Introduction to 5G Architecture_en.srt
|
2.7 KB
|
002 5G Deployment Options-Standalone Vs Non-standalone Architectures.mp4
|
15.6 MB
|
002 5G Deployment Options-Standalone Vs Non-standalone Architectures_en.srt
|
4.6 KB
|
/.../03 - Key Technologies of 5G New Radio (NR)/
|
001 Dual Connectivity in 5G Networks.mp4
|
10.7 MB
|
001 Dual Connectivity in 5G Networks_en.srt
|
3.8 KB
|
002 Small Cells With Dual Connectivity in 5G.mp4
|
5.8 MB
|
002 Small Cells With Dual Connectivity in 5G_en.srt
|
2.0 KB
|
003 Increased Wireless Spectrum of 5G And Its Properties.mp4
|
7.5 MB
|
003 Increased Wireless Spectrum of 5G And Its Properties_en.srt
|
2.9 KB
|
004 OFDMA, Flexible Numerology And Frame Structure in 5G.mp4
|
20.4 MB
|
004 OFDMA, Flexible Numerology And Frame Structure in 5G_en.srt
|
7.0 KB
|
005 Resource Block and Resource Element.mp4
|
5.9 MB
|
005 Resource Block and Resource Element_en.srt
|
2.3 KB
|
006 256 QAM As Modulation Technique In 5G Networks.mp4
|
5.5 MB
|
006 256 QAM As Modulation Technique In 5G Networks_en.srt
|
2.2 KB
|
007 Cloud Radio Access Network (CRAN) in 5G Networks.mp4
|
7.3 MB
|
007 Cloud Radio Access Network (CRAN) in 5G Networks_en.srt
|
3.2 KB
|
/.../04 - Massive MIMO AND Beam-forming in 5G/
|
001 Introduction.mp4
|
13.5 MB
|
001 Introduction_en.srt
|
5.6 KB
|
002 Antennas For mmWave.mp4
|
3.3 MB
|
002 Antennas For mmWave_en.srt
|
1.5 KB
|
003 How 3D Beamforming Works.mp4
|
4.8 MB
|
003 How 3D Beamforming Works_en.srt
|
1.3 KB
|
004 5G Antennas for massive MIMO.mp4
|
5.8 MB
|
004 5G Antennas for massive MIMO_en.srt
|
1.9 KB
|
/.../05 - 5G Network Architecture/
|
001 Next Generation NodeB (gNB) functions in NG-RAN.mp4
|
11.7 MB
|
001 Next Generation NodeB (gNB) functions in NG-RAN_en.srt
|
5.4 KB
|
002 Packet Data Unit (PDU) session.mp4
|
8.5 MB
|
002 Packet Data Unit (PDU) session_en.srt
|
3.0 KB
|
003 What is Meant by Control Plane and User Plane Separation.mp4
|
8.0 MB
|
003 What is Meant by Control Plane and User Plane Separation_en.srt
|
3.0 KB
|
/.../06 - 5G Network Architecture-Core Network/
|
001 Access And Mobility Management Function (AMF).mp4
|
43.9 MB
|
001 Access And Mobility Management Function (AMF)_en.srt
|
3.9 KB
|
002 Authentication Server Function (AUSF).mp4
|
6.1 MB
|
002 Authentication Server Function (AUSF)_en.srt
|
1.9 KB
|
003 Session Management Function (SMF).mp4
|
6.5 MB
|
003 Session Management Function (SMF)_en.srt
|
2.3 KB
|
004 User Plane Function (UPF).mp4
|
5.2 MB
|
004 User Plane Function (UPF)_en.srt
|
1.9 KB
|
005 Unified Data Management (UDM).mp4
|
7.5 MB
|
005 Unified Data Management (UDM)_en.srt
|
2.5 KB
|
006 Policy Charging Function (PCF).mp4
|
16.5 MB
|
006 Policy Charging Function (PCF)_en.srt
|
2.5 KB
|
007 Application Function (AF).mp4
|
2.1 MB
|
007 Application Function (AF)_en.srt
|
0.6 KB
|
/.../07 - Network Function Virtualization And Network Slicing in 5G Networks/
|
001 Network Function Virtualization (NFV).mp4
|
23.1 MB
|
001 Network Function Virtualization (NFV)_en.srt
|
8.0 KB
|
002 Network Slicing.mp4
|
8.1 MB
|
002 Network Slicing_en.srt
|
3.1 KB
|
/.../08 - Remaining Functions of 5G Core Network/
|
001 Network Repository Function (NRF).mp4
|
3.0 MB
|
001 Network Repository Function (NRF)_en.srt
|
0.9 KB
|
002 Network Slice Selection Function (NSSF).mp4
|
3.1 MB
|
002 Network Slice Selection Function (NSSF)_en.srt
|
1.0 KB
|
003 Network Exposure Function (NEF).mp4
|
4.5 MB
|
003 Network Exposure Function (NEF)_en.srt
|
1.4 KB
|
/.../09 - Identifiers in 5G/
|
001 UE Identifiers-PEI, SUPI, SUCI, 5G-S-TMSI, 5G-GUTI.mp4
|
12.5 MB
|
001 UE Identifiers-PEI, SUPI, SUCI, 5G-S-TMSI, 5G-GUTI_en.srt
|
5.9 KB
|
002 Tracking Areas in 5G.mp4
|
7.1 MB
|
002 Tracking Areas in 5G_en.srt
|
2.6 KB
|
003 5G Network Identifiers.mp4
|
3.0 MB
|
003 5G Network Identifiers_en.srt
|
1.4 KB
|
/.../10 - Procedures in 5G Networks/
|
001 UE Power-On And Registeration.mp4
|
30.5 MB
|
001 UE Power-On And Registeration_en.srt
|
8.1 KB
|
002 UE Idle And Connected Modes.mp4
|
2.8 MB
|
002 UE Idle And Connected Modes_en.srt
|
1.8 KB
|
003 PDU Session Establishment.mp4
|
3.0 MB
|
003 PDU Session Establishment_en.srt
|
1.4 KB
|
004 UE Paging Procedure.mp4
|
3.3 MB
|
004 UE Paging Procedure_en.srt
|
1.1 KB
|
005 Tracking Area Update procedure.mp4
|
2.2 MB
|
005 Tracking Area Update procedure_en.srt
|
0.8 KB
|
006 Handover And Its Types In 5G.mp4
|
9.0 MB
|
006 Handover And Its Types In 5G_en.srt
|
3.5 KB
|
/.../11 - Service Based Architecture (SBA) in 5G with Use Cases/
|
001 Service Based Architecture (SBA) in 5G.mp4
|
8.6 MB
|
001 Service Based Architecture (SBA) in 5G_en.srt
|
3.1 KB
|
002 Mechanisms For NF Services Provision.mp4
|
3.4 MB
|
002 Mechanisms For NF Services Provision_en.srt
|
1.4 KB
|
003 HTTP2 for 5G Core Network.mp4
|
3.0 MB
|
003 HTTP2 for 5G Core Network_en.srt
|
1.1 KB
|
004 HTTP2 on Web Vs HTTP2 in 5G Core.mp4
|
3.6 MB
|
004 HTTP2 on Web Vs HTTP2 in 5G Core_en.srt
|
1.4 KB
|
005 JSON Format Example.mp4
|
4.2 MB
|
005 JSON Format Example_en.srt
|
2.0 KB
|
006 Concept of Resource in 5G Service Based Architecture.mp4
|
5.2 MB
|
006 Concept of Resource in 5G Service Based Architecture_en.srt
|
2.2 KB
|
007 HTTP Methods in 5GC.mp4
|
3.6 MB
|
007 HTTP Methods in 5GC_en.srt
|
1.5 KB
|
008 HTTP Responses in 5GC.mp4
|
2.8 MB
|
008 HTTP Responses in 5GC_en.srt
|
1.2 KB
|
009 Naming Scheme for NF Services.mp4
|
4.9 MB
|
009 Naming Scheme for NF Services_en.srt
|
2.2 KB
|
010 REST APLLIED TO 5G Core Network Service.mp4
|
11.6 MB
|
010 REST APLLIED TO 5G Core Network Service_en.srt
|
3.9 KB
|
011 Use Case 1 Network Function Registration with NRF.mp4
|
15.3 MB
|
011 Use Case 1 Network Function Registration with NRF_en.srt
|
6.5 KB
|
012 Use Case 2 NF Service Discovery.mp4
|
10.0 MB
|
012 Use Case 2 NF Service Discovery_en.srt
|
4.0 KB
|
/.../12 - Essentials of Network Slicing in 5G Networks/
|
001 What is a Network Slice.mp4
|
5.3 MB
|
001 What is a Network Slice_en.srt
|
1.9 KB
|
002 Example of Network Slicing in 5G.mp4
|
5.5 MB
|
002 Example of Network Slicing in 5G_en.srt
|
2.1 KB
|
003 Single Network Slice Selection Assistance Information (S-NSSAI).mp4
|
4.4 MB
|
003 Single Network Slice Selection Assistance Information (S-NSSAI)_en.srt
|
1.6 KB
|
004 Network Slice Subnet Instance (NSSI).mp4
|
5.4 MB
|
004 Network Slice Subnet Instance (NSSI)_en.srt
|
1.6 KB
|
005 Multiple Slices Support.mp4
|
2.2 MB
|
005 Multiple Slices Support_en.srt
|
1.0 KB
|
006 Network Slice Instance (NSI) Life Cycle.mp4
|
2.6 MB
|
006 Network Slice Instance (NSI) Life Cycle_en.srt
|
1.5 KB
|
007 1. Preparation Phase.mp4
|
6.6 MB
|
007 1. Preparation Phase_en.srt
|
2.8 KB
|
008 2. Instantiation Configuration And Activation Phase.mp4
|
1.7 MB
|
008 2. Instantiation Configuration And Activation Phase_en.srt
|
0.8 KB
|
009 3. Run-time Phase.mp4
|
4.0 MB
|
009 3. Run-time Phase_en.srt
|
1.5 KB
|
010 4. Decommissioning Phase.mp4
|
1.8 MB
|
010 4. Decommissioning Phase_en.srt
|
0.9 KB
|
011 Network Slicing Management Model CSMF, NSMF,NSSMF.mp4
|
7.4 MB
|
011 Network Slicing Management Model CSMF, NSMF,NSSMF_en.srt
|
2.9 KB
|
012 Radio Access Network Slicing Example.mp4
|
8.3 MB
|
012 Radio Access Network Slicing Example_en.srt
|
3.3 KB
|
013 Slice Availability in the 5G Networks.mp4
|
1.9 MB
|
013 Slice Availability in the 5G Networks_en.srt
|
0.9 KB
|
014 Signaling Related To Slice Availability.mp4
|
11.3 MB
|
014 Signaling Related To Slice Availability_en.srt
|
3.1 KB
|
015 Network Slice Selection Function (NSSF) services.mp4
|
6.5 MB
|
015 Network Slice Selection Function (NSSF) services_en.srt
|
2.4 KB
|
/.../13 - Security in 5G Networks/
|
001 5G Roaming Architecture.mp4
|
7.7 MB
|
001 5G Roaming Architecture_en.srt
|
2.8 KB
|
002 Logical Entities for Network Access Security in 5G.mp4
|
5.9 MB
|
002 Logical Entities for Network Access Security in 5G_en.srt
|
1.9 KB
|
003 Authentication Credential Repository and Processing Function (ARPF).mp4
|
5.3 MB
|
003 Authentication Credential Repository and Processing Function (ARPF)_en.srt
|
1.9 KB
|
004 Subscription Identifier De-concealing function (SIDF).mp4
|
3.2 MB
|
004 Subscription Identifier De-concealing function (SIDF)_en.srt
|
1.5 KB
|
005 Authentication Server Function (AUSF).mp4
|
2.6 MB
|
005 Authentication Server Function (AUSF)_en.srt
|
1.0 KB
|
006 Security Anchor Function (SEAF).mp4
|
3.5 MB
|
006 Security Anchor Function (SEAF)_en.srt
|
1.5 KB
|
007 Network Access Security block diagram.mp4
|
15.1 MB
|
007 Network Access Security block diagram_en.srt
|
6.1 KB
|
008 Initiation of Authentication Procedure.mp4
|
15.0 MB
|
008 Initiation of Authentication Procedure_en.srt
|
5.5 KB
|
009 ConcealementDeconcealement of SUPI.mp4
|
25.6 MB
|
009 ConcealementDeconcealement of SUPI_en.srt
|
3.9 KB
|
010 5G Authentication And Key Agreement (AKA) Procedure.mp4
|
31.6 MB
|
010 5G Authentication And Key Agreement (AKA) Procedure_en.srt
|
10.8 KB
|
011 5G AKA Security Key Hierarchy.mp4
|
34.5 MB
|
011 5G AKA Security Key Hierarchy_en.srt
|
6.4 KB
|
012 5G EAP-AKA for non-3GPP Access Architecture.mp4
|
42.1 MB
|
012 5G EAP-AKA for non-3GPP Access Architecture_en.srt
|
8.0 KB
|
013 5G EAP-AKA Security Key Hierarchy.mp4
|
11.9 MB
|
013 5G EAP-AKA Security Key Hierarchy_en.srt
|
4.1 KB
|
/.../14 - Voice Over 5G/
|
001 Introduction To Voice Over 5G.mp4
|
13.1 MB
|
001 Introduction To Voice Over 5G_en.srt
|
3.9 KB
|
002 Codecs for Voice Over 5G.mp4
|
5.7 MB
|
002 Codecs for Voice Over 5G_en.srt
|
2.2 KB
|
003 Session Initiation Protocol (SIP) For Control Signalling.mp4
|
2.6 MB
|
003 Session Initiation Protocol (SIP) For Control Signalling_en.srt
|
1.3 KB
|
004 IP Multimedia Subsystem (IMS) in 5G Network.mp4
|
6.9 MB
|
004 IP Multimedia Subsystem (IMS) in 5G Network_en.srt
|
1.0 KB
|
005 IMS Components-Call Session Control Functions (CSCF)-P-CSCF,I-CSCF,S-CSCF.mp4
|
13.3 MB
|
005 IMS Components-Call Session Control Functions (CSCF)-P-CSCF,I-CSCF,S-CSCF_en.srt
|
5.4 KB
|
006 IMS Components-Telephony Application Server (TAS).mp4
|
2.1 MB
|
006 IMS Components-Telephony Application Server (TAS)_en.srt
|
0.8 KB
|
007 IMS Connectivity Requirement & PDU session for IMS.mp4
|
15.6 MB
|
007 IMS Connectivity Requirement & PDU session for IMS_en.srt
|
2.7 KB
|
008 UE Registration with IMS-PCSCF Discovery.mp4
|
5.3 MB
|
008 UE Registration with IMS-PCSCF Discovery_en.srt
|
2.3 KB
|
009 UE Registeration with IMS-Signal Flow.mp4
|
22.8 MB
|
009 UE Registeration with IMS-Signal Flow_en.srt
|
3.1 KB
|
010 3rd Party Registration in IMS.mp4
|
2.6 MB
|
010 3rd Party Registration in IMS_en.srt
|
1.2 KB
|
011 SIP signalling for Voice Over 5G call setup.mp4
|
11.4 MB
|
011 SIP signalling for Voice Over 5G call setup_en.srt
|
4.3 KB
|
012 IMS Media Bearer Establishment For Voice Over 5G.mp4
|
8.0 MB
|
012 IMS Media Bearer Establishment For Voice Over 5G_en.srt
|
3.0 KB
|
013 Tear Down Of 5G Voice Call.mp4
|
2.5 MB
|
013 Tear Down Of 5G Voice Call_en.srt
|
1.6 KB
|
014 EPS Fallback for Voice Over 5G.mp4
|
5.1 MB
|
014 EPS Fallback for Voice Over 5G_en.srt
|
2.3 KB
|
/.../15 - UE State Management in 5G/
|
001 Introduction to the UE State Management in 5G.mp4
|
5.3 MB
|
001 Introduction to the UE State Management in 5G_en.srt
|
2.0 KB
|
002 Radio Resource Control (RRC) State RRC_IDLE, RRC_Connected, RRC _Inactive.mp4
|
12.7 MB
|
002 Radio Resource Control (RRC) State RRC_IDLE, RRC_Connected, RRC _Inactive_en.srt
|
4.9 KB
|
003 UE Mobility In RRC_INACTIVE RAN Areas and RAN based Notification Areas.mp4
|
6.9 MB
|
003 UE Mobility In RRC_INACTIVE RAN Areas and RAN based Notification Areas_en.srt
|
2.8 KB
|
004 Connection Management (CM) State.mp4
|
6.9 MB
|
004 Connection Management (CM) State_en.srt
|
2.8 KB
|
005 Registration Management (RM) State.mp4
|
3.8 MB
|
005 Registration Management (RM) State_en.srt
|
1.6 KB
|
006 Combined State Diagram.mp4
|
9.7 MB
|
006 Combined State Diagram_en.srt
|
3.7 KB
|
/.../16 - 5G PDU Session Types, Attributes and Quality of Service (QoS)/
|
001 PDU Session Types And Attributes.mp4
|
16.6 MB
|
001 PDU Session Types And Attributes_en.srt
|
5.6 KB
|
002 The QoS Rule for a QoS Flow.mp4
|
3.2 MB
|
002 The QoS Rule for a QoS Flow_en.srt
|
1.1 KB
|
003 PDU session states Active and Inactive.mp4
|
8.3 MB
|
003 PDU session states Active and Inactive_en.srt
|
3.4 KB
|
004 Two types of QoS Flows Guaranteed Bitrate And Non-guaranteed Bitrate.mp4
|
5.0 MB
|
004 Two types of QoS Flows Guaranteed Bitrate And Non-guaranteed Bitrate_en.srt
|
2.6 KB
|
005 Allocation and Retention Priority (ARP).mp4
|
7.2 MB
|
005 Allocation and Retention Priority (ARP)_en.srt
|
2.9 KB
|
006 5G QoS Identifier (5QI).mp4
|
16.6 MB
|
006 5G QoS Identifier (5QI)_en.srt
|
6.1 KB
|
007 GBR QoS Flow Specific Parameters GFBR, MFBR, Notification Control.mp4
|
1.9 MB
|
007 GBR QoS Flow Specific Parameters GFBR, MFBR, Notification Control_en.srt
|
0.9 KB
|
008 Non-GBR QoS Flow Parameters session-AMBR, UE-AMBR, RQA.mp4
|
3.5 MB
|
008 Non-GBR QoS Flow Parameters session-AMBR, UE-AMBR, RQA_en.srt
|
1.5 KB
|
009 Packet Filters.mp4
|
3.5 MB
|
009 Packet Filters_en.srt
|
1.4 KB
|
010 5G Reflective QoS (RQoS).mp4
|
8.5 MB
|
010 5G Reflective QoS (RQoS)_en.srt
|
3.5 KB
|
/.../17 - 5G NR Air Interface/
|
001 Channel Bandwidth & Maximum Transmission BW Configuration.mp4
|
28.4 MB
|
001 Channel Bandwidth & Maximum Transmission BW Configuration_en.srt
|
6.9 KB
|
002 NR-Absolute Radio Frequency Channel Number (NR-ARFCN).mp4
|
6.9 MB
|
002 NR-Absolute Radio Frequency Channel Number (NR-ARFCN)_en.srt
|
3.2 KB
|
003 Difference Between Global And Channel Raster.mp4
|
4.7 MB
|
003 Difference Between Global And Channel Raster_en.srt
|
2.5 KB
|
004 Bandwidth Part in 5G.mp4
|
6.0 MB
|
004 Bandwidth Part in 5G_en.srt
|
2.6 KB
|
005 Resource Grid on 5G Air Interface.mp4
|
16.7 MB
|
005 Resource Grid on 5G Air Interface_en.srt
|
4.0 KB
|
006 5G NR Model for Air Interface Channels.mp4
|
4.8 MB
|
006 5G NR Model for Air Interface Channels_en.srt
|
1.9 KB
|
007 5G NR Logical channels.mp4
|
7.8 MB
|
007 5G NR Logical channels_en.srt
|
3.0 KB
|
008 5G NR Transport Channels.mp4
|
4.9 MB
|
008 5G NR Transport Channels_en.srt
|
1.3 KB
|
009 5G NR Physical Channels.mp4
|
17.1 MB
|
009 5G NR Physical Channels_en.srt
|
3.9 KB
|
010 Physical Signals DM-RS (Demodulation Reference Signal).mp4
|
5.4 MB
|
010 Physical Signals DM-RS (Demodulation Reference Signal)_en.srt
|
2.3 KB
|
011 Physical Signals-SRS (Sounding Reference Signal).mp4
|
3.3 MB
|
011 Physical Signals-SRS (Sounding Reference Signal)_en.srt
|
1.6 KB
|
012 Physical signals CSI-RS (Channel State Information-Reference Signal).mp4
|
2.3 MB
|
012 Physical signals CSI-RS (Channel State Information-Reference Signal)_en.srt
|
1.1 KB
|
013 Physical Signals PT-RS (Phase Tracking-Reference Signal).mp4
|
1.4 MB
|
013 Physical Signals PT-RS (Phase Tracking-Reference Signal)_en.srt
|
0.9 KB
|
014 Procedures to understand 5G channels.mp4
|
645.2 KB
|
014 Procedures to understand 5G channels_en.srt
|
0.4 KB
|
015 5G NR Cell Acquisition Procedure.mp4
|
5.1 MB
|
015 5G NR Cell Acquisition Procedure_en.srt
|
2.1 KB
|
016 5G NR Cell Acquisition- Beam Sweeping.mp4
|
5.6 MB
|
016 5G NR Cell Acquisition- Beam Sweeping_en.srt
|
2.1 KB
|
017 5G NR Cell Acquisition- Signal Synchronization Block (SSB).mp4
|
5.3 MB
|
017 5G NR Cell Acquisition- Signal Synchronization Block (SSB)_en.srt
|
1.9 KB
|
018 5G NR Cell Acquisition- Physical Cell ID (PCI).mp4
|
3.0 MB
|
018 5G NR Cell Acquisition- Physical Cell ID (PCI)_en.srt
|
1.2 KB
|
019 5G Cell Acquisition Minimum system information.mp4
|
3.5 MB
|
019 5G Cell Acquisition Minimum system information_en.srt
|
1.6 KB
|
020 5G Cell Acquisition Master Information Block (MIB).mp4
|
3.3 MB
|
020 5G Cell Acquisition Master Information Block (MIB)_en.srt
|
1.4 KB
|
021 5G Cell Acquisition Control Resource Set (CORESET).mp4
|
2.3 MB
|
021 5G Cell Acquisition Control Resource Set (CORESET)_en.srt
|
0.7 KB
|
022 5G Cell Acquisition System Information Block 1 (SIB1).mp4
|
4.3 MB
|
022 5G Cell Acquisition System Information Block 1 (SIB1)_en.srt
|
1.7 KB
|
023 Initial Access (RACH Procedure).mp4
|
11.7 MB
|
023 Initial Access (RACH Procedure)_en.srt
|
4.9 KB
|
024 Scheduled Data Transmission Procedure.mp4
|
17.7 MB
|
024 Scheduled Data Transmission Procedure_en.srt
|
7.2 KB
|
025 Control Resource Set (CORESET) Revisited.mp4
|
3.3 MB
|
025 Control Resource Set (CORESET) Revisited_en.srt
|
1.6 KB
|
026 Paging Process.mp4
|
1.5 MB
|
026 Paging Process_en.srt
|
0.8 KB
|
027 Bonus Lecture My Other 5G Courses.html
|
0.3 KB
|
external-assets-links.txt
|
0.2 KB
|
/~Get Your Files Here !/
|
Bonus Resources.txt
|
0.4 KB
|
Total files 281
|