1. The document describes RRC procedures in LTE, including important changes from 3G systems.
2. Key changes include a simplified two-state model, single shared transport channel, reduced signaling, and no cell update or URA update procedures.
3. Core RRC procedures like paging, connection establishment, and reconfiguration are explained along with differences from 3G.
This document provides an overview of RRC procedures in LTE as specified in 3GPP 36.331. It describes important changes in the RRC specification for LTE compared to legacy 3G systems, including having only two RRC states (RRC_IDLE and RRC_CONNECTED) compared to five states in 3G, and three defined signaling radio bearers compared to four in 3G. The purpose is to help developers and test engineers understand LTE RRC features and procedures. Key procedures described include paging, RRC connection establishment, reconfiguration, re-establishment, security activation, and handover.
This document provides an overview of UMTS basics including standards, network architecture, interfaces, domains, UTRAN components, mobility management, security, radio interface concepts, protocols, and codecs. It serves as an introduction to analyzing UMTS UTRAN signaling procedures which are described in detail later in the document.
Elementary procedures for Circuit-Switched (CS) Call Control (CC) in 3GPPLouis K. H. Kuo
The document provides an overview of elementary procedures for circuit-switched call control in 3GPP networks. It describes the background of related protocol layers and planes. Call control manages call establishment, clearing, information, and miscellaneous procedures. The main call types are mobile-originated, mobile-terminated, and network-initiated mobile-originated calls. Standard L3 messages follow specific formats and structures, and the call state is represented by state diagrams and message flow diagrams.
The document summarizes the results of an email discussion on modifying RRC procedures in TS 25.331. It lists various RRC procedure specifications that were discussed and agreed upon. It is proposed to replace the text in chapters 8 and 9 of TS 25.331 with the text from this document, except for two procedures still being specified. The chapter structures would also be adjusted accordingly.
The document discusses LTE system signaling procedures. It begins with objectives of understanding LTE architecture, elementary procedures of interfaces like S1, X2 and Uu, and procedures for service setup, release and handover. It then covers topics like system architecture, bearer service architecture, elementary procedures on Uu including connection establishment and release, and procedures on S1 and X2 interfaces. The document aims to help readers understand LTE signaling flows and procedures.
The document provides an overview of NBAP (Node B Application Part) procedures. It discusses:
1. The Iub interface between RNC and Node B and how NBAP is used for signaling.
2. The main functions of NBAP including cell configuration management, transport channel management, and radio link management.
3. The different types of NBAP procedures including common procedures for tasks like cell setup/deletion and dedicated procedures for radio link management.
4. Key elements of NBAP communication like messages, information elements, and error handling.
The document provides an overview of the message flow for a packet switched call between a UE and core network. Key steps include:
1) The UE performs cell search and selection before establishing an RRC connection and registering with the core network.
2) The UE then sends an attach request and exchanges authentication and security messages with the core network.
3) Once attached, the UE can activate a packet data protocol context and exchange user plane data for the packet switched call.
LTE Location Management and Mobility Managementaliirfan04
Provides an overview of power management (connected and idle mode) and mobility management (both idle-mode mobility (cell selection and re-selection) and active mode (handovers).
This document provides an overview of RRC procedures in LTE as specified in 3GPP 36.331. It describes important changes in the RRC specification for LTE compared to legacy 3G systems, including having only two RRC states (RRC_IDLE and RRC_CONNECTED) compared to five states in 3G, and three defined signaling radio bearers compared to four in 3G. The purpose is to help developers and test engineers understand LTE RRC features and procedures. Key procedures described include paging, RRC connection establishment, reconfiguration, re-establishment, security activation, and handover.
This document provides an overview of UMTS basics including standards, network architecture, interfaces, domains, UTRAN components, mobility management, security, radio interface concepts, protocols, and codecs. It serves as an introduction to analyzing UMTS UTRAN signaling procedures which are described in detail later in the document.
Elementary procedures for Circuit-Switched (CS) Call Control (CC) in 3GPPLouis K. H. Kuo
The document provides an overview of elementary procedures for circuit-switched call control in 3GPP networks. It describes the background of related protocol layers and planes. Call control manages call establishment, clearing, information, and miscellaneous procedures. The main call types are mobile-originated, mobile-terminated, and network-initiated mobile-originated calls. Standard L3 messages follow specific formats and structures, and the call state is represented by state diagrams and message flow diagrams.
The document summarizes the results of an email discussion on modifying RRC procedures in TS 25.331. It lists various RRC procedure specifications that were discussed and agreed upon. It is proposed to replace the text in chapters 8 and 9 of TS 25.331 with the text from this document, except for two procedures still being specified. The chapter structures would also be adjusted accordingly.
The document discusses LTE system signaling procedures. It begins with objectives of understanding LTE architecture, elementary procedures of interfaces like S1, X2 and Uu, and procedures for service setup, release and handover. It then covers topics like system architecture, bearer service architecture, elementary procedures on Uu including connection establishment and release, and procedures on S1 and X2 interfaces. The document aims to help readers understand LTE signaling flows and procedures.
The document provides an overview of NBAP (Node B Application Part) procedures. It discusses:
1. The Iub interface between RNC and Node B and how NBAP is used for signaling.
2. The main functions of NBAP including cell configuration management, transport channel management, and radio link management.
3. The different types of NBAP procedures including common procedures for tasks like cell setup/deletion and dedicated procedures for radio link management.
4. Key elements of NBAP communication like messages, information elements, and error handling.
The document provides an overview of the message flow for a packet switched call between a UE and core network. Key steps include:
1) The UE performs cell search and selection before establishing an RRC connection and registering with the core network.
2) The UE then sends an attach request and exchanges authentication and security messages with the core network.
3) Once attached, the UE can activate a packet data protocol context and exchange user plane data for the packet switched call.
LTE Location Management and Mobility Managementaliirfan04
Provides an overview of power management (connected and idle mode) and mobility management (both idle-mode mobility (cell selection and re-selection) and active mode (handovers).
It discusses about the 3G call flow scenarios for both the Circuit Switched (CS) and Packet Switched (PS). Calls are mobile originated. Call making and call tear down both are discussed.
This document provides an overview of IP routing essentials including routing protocols, path selection, static routing, and virtual routing and forwarding. It describes common routing protocols such as RIP, EIGRP, OSPF, IS-IS, and BGP. It discusses the algorithms and mechanisms used for path selection in distance vector protocols, link-state protocols, and BGP. It also covers topics such as administrative distance, metrics, equal-cost multipathing, and different types of static routes.
The document provides an overview of GSM, GPRS, UMTS, HSDPA and HSUPA protocols and call flows. It describes the architecture, interfaces and protocols of each generation at the physical, data link and network layers. Key protocols discussed include LAPD, RR, MM, CM, SNDCP, GTP, RLC, MAC, RRC. Call flows for basic call origination, authentication, data transfer and detach procedures are illustrated for each network. The document also introduces HSDPA and HSUPA enhancements to UMTS such as new channels, scheduling functionality and H-ARQ protocol.
The document discusses the evolution of HSPA and HSPA+ mobile technologies. It describes how HSPA introduced improvements like higher data rates, lower latency, and better capacity and efficiency over prior 3G standards. HSPA+ further improved capabilities by utilizing higher order modulations like 64QAM, multiple-input multiple-output antenna techniques, continuous packet connectivity, and layer 2 enhancements to achieve downlink speeds up to 42 Mbps and uplink speeds up to 11 Mbps.
The document summarizes LTE procedures including cell search, cell selection, cell re-selection, tracking area updates, paging, random access channel procedure, mobility handovers between X2 and S1, and handover events. The cell search procedure detects downlink synchronization using two channels, the primary and secondary synchronization channels, which are always located in the center of the available spectrum. The random access channel procedure involves the UE sending preambles, receiving a response indicating resources to use for signaling and data transmission on an uplink channel.
The document summarizes general call flows in WCDMA networks, including:
1. Mobile originated (MO) and mobile terminated (MT) call flows involve cell selection, connection setup, authentication, location management, and setting up/releasing service bearers.
2. Common non-access stratum procedures manage mobility, security, and connection management across different domains.
3. Packet switched data flows include attach, activation and modification of PDP contexts, and location and detach procedures between the UE, UTRAN, SGSN, and GGSN.
This document provides an overview of network drive testing on 2G/3G networks. It discusses the reasons for performing drive tests, including network performance monitoring, maintenance, benchmarking, and addressing customer complaints. It then outlines the modules to be covered in the training, including an overview of 3G systems, drive test concepts, performing outdoor drive tests, and drive test reporting and analysis. Key topics that will be covered include 3G/UMTS architectures, channelization, handover processes, and the parameters measured during 2G and 3G drive tests.
RANAP is the protocol used over the Iu interface to connect the WCDMA RAN to the core network. It carries NAS messages between the core network nodes and UEs. RANAP uses SS7 over ATM for signaling and supports either transparent mode or support mode for transporting user data over the Iu user plane. The main functions of RANAP include establishing and releasing signaling connections, transferring NAS messages for mobility management and call control, and setting up GTP tunnels for user data transport.
The document discusses LTE channels and the MAC layer. It describes the functions of the MAC layer, including mapping between transparent and logical channels, error correction through HARQ, and priority handling with dynamic scheduling. It then provides details on the LTE downlink channels, including both logical channels like PCCH, BCCH, CCCH, and DCCH, as well as transport channels like PCH, BCH, DL-SCH, MCH, and PDCCH.
Engineer EMERSON EDUARDO RODRIGUES PRESENTA UNA NUEVA VERSION
THERE ONE NEW ONE PRESENTATION FOR 2G AND 3G ENGINEERING FOR LTE AND PSCORE ENGINEER
ITS VERY SUITABLE FOR YOUR RESEARCH AT ALL LEVELS OF RF ENGINEERING AND PS CS
The document discusses the X2 interface and X2 handover procedure in LTE networks. The X2 interface connects two neighboring eNodeBs and establishes an X2 connection through the X2 setup procedure. The X2 handover procedure allows handing over a UE's connection from a source eNodeB to a target eNodeB, involving preparation where the target allocates resources and the UE connects to it, and execution including a path switch to route data to the target eNodeB. Key information like UE context and bearers is exchanged between eNodeBs through the X2 interface to enable smooth handover.
The document discusses HSPA systems and provides an overview of High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA). It notes that HSPA was introduced to improve the packet data capabilities of WCDMA in response to growing interest in rich calls, mobile TV, and streaming services. HSDPA introduced faster scheduling, link adaptation, and hybrid automatic repeat request to improve downlink performance, while HSUPA later improved uplink performance using similar techniques. The document provides technical details on the channels, link adaptation, scheduling, mobility, and retransmissions used in HSDPA and HSUPA systems.
The document describes the initialization and setup procedures between a Node B, RNC, and core network nodes in a UMTS network. It includes procedures for Node B initialization like the audit procedure, cell setup procedure, and common transport channel setup procedure. It also covers call flow scenarios for RRC connection establishment, location updates, circuit switched call setup, and handovers between nodes. The end-to-end protocol stacks for the circuit switched and packet switched domains are illustrated as well.
Engineer EMERSON EDUARDO RODRIGUES PRESENTA UNA NUEVA VERSION
THERE ONE NEW ONE PRESENTATION FOR 2G AND 3G ENGINEERING FOR LTE AND PSCORE ENGINEER
ITS VERY SUITABLE FOR YOUR RESEARCH AT ALL LEVELS OF RF ENGINEERING AND PS CS
The document describes the Radio Link Control (RLC) sub layer in 3GPP LTE, including its functions, modes of operation (unacknowledged, acknowledged, and transparent), state variables, procedures for transmitting and receiving data, and retransmission processes. The RLC sub layer provides transfer of upper layer PDUs, error correction, segmentation/reassembly, reordering, duplication detection, and supports both acknowledged and unacknowledged data transfer.
Introduction of PS Core Network Elements and little bit of EPC/LTE Network. This is introductory slides pack for a 10 class/slides set for detail introduction of 2G/3G and LTE PS Core Network.
The document discusses routing and routing protocols. It defines routing as the process routers use to forward packets toward their destination network based on the destination IP address. It describes static routing, where network administrators manually configure routes, as well as dynamic routing protocols, where routers automatically share information to build and update routing tables. It outlines common routing protocols including RIP, IGRP, EIGRP, OSPF, and BGP and their key characteristics such as the metrics and timers they use.
Engineer EMERSON EDUARDO RODRIGUES PRESENTA UNA NUEVA VERSION
THERE ONE NEW ONE PRESENTATION FOR 2G AND 3G ENGINEERING FOR LTE AND PSCORE ENGINEER
ITS VERY SUITABLE FOR YOUR RESEARCH AT ALL LEVELS OF RF ENGINEERING AND PS CS
Difference in Rrc procedures lte and 3GPraveen Kumar
- RRC in LTE has only two states - RRC_IDLE and RRC_CONNECTED, compared to five states in 3G. This simplifies RRC state handling and RRM algorithms.
- Signaling radio bearers are simplified to SRB0, SRB1, and SRB2 (still being finalized) compared to four SRBs in 3G.
- RRC procedures and messages are simplified in LTE compared to 3G. This reduces signaling overhead and complexity.
The document provides an overview of LTE (Long Term Evolution) Release 8. It discusses key requirements for LTE such as supporting high data rates, low latency, and an all-IP network. It describes the network architecture including components like eNodeB, MME, S-GW, and P-GW. It also covers functionality of these components and the protocol stack consisting of PDCP, RLC, MAC, and RRC layers. Mobility management, QoS, and comparisons to other technologies like HSPA+ and WiMAX are also summarized.
It discusses about the 3G call flow scenarios for both the Circuit Switched (CS) and Packet Switched (PS). Calls are mobile originated. Call making and call tear down both are discussed.
This document provides an overview of IP routing essentials including routing protocols, path selection, static routing, and virtual routing and forwarding. It describes common routing protocols such as RIP, EIGRP, OSPF, IS-IS, and BGP. It discusses the algorithms and mechanisms used for path selection in distance vector protocols, link-state protocols, and BGP. It also covers topics such as administrative distance, metrics, equal-cost multipathing, and different types of static routes.
The document provides an overview of GSM, GPRS, UMTS, HSDPA and HSUPA protocols and call flows. It describes the architecture, interfaces and protocols of each generation at the physical, data link and network layers. Key protocols discussed include LAPD, RR, MM, CM, SNDCP, GTP, RLC, MAC, RRC. Call flows for basic call origination, authentication, data transfer and detach procedures are illustrated for each network. The document also introduces HSDPA and HSUPA enhancements to UMTS such as new channels, scheduling functionality and H-ARQ protocol.
The document discusses the evolution of HSPA and HSPA+ mobile technologies. It describes how HSPA introduced improvements like higher data rates, lower latency, and better capacity and efficiency over prior 3G standards. HSPA+ further improved capabilities by utilizing higher order modulations like 64QAM, multiple-input multiple-output antenna techniques, continuous packet connectivity, and layer 2 enhancements to achieve downlink speeds up to 42 Mbps and uplink speeds up to 11 Mbps.
The document summarizes LTE procedures including cell search, cell selection, cell re-selection, tracking area updates, paging, random access channel procedure, mobility handovers between X2 and S1, and handover events. The cell search procedure detects downlink synchronization using two channels, the primary and secondary synchronization channels, which are always located in the center of the available spectrum. The random access channel procedure involves the UE sending preambles, receiving a response indicating resources to use for signaling and data transmission on an uplink channel.
The document summarizes general call flows in WCDMA networks, including:
1. Mobile originated (MO) and mobile terminated (MT) call flows involve cell selection, connection setup, authentication, location management, and setting up/releasing service bearers.
2. Common non-access stratum procedures manage mobility, security, and connection management across different domains.
3. Packet switched data flows include attach, activation and modification of PDP contexts, and location and detach procedures between the UE, UTRAN, SGSN, and GGSN.
This document provides an overview of network drive testing on 2G/3G networks. It discusses the reasons for performing drive tests, including network performance monitoring, maintenance, benchmarking, and addressing customer complaints. It then outlines the modules to be covered in the training, including an overview of 3G systems, drive test concepts, performing outdoor drive tests, and drive test reporting and analysis. Key topics that will be covered include 3G/UMTS architectures, channelization, handover processes, and the parameters measured during 2G and 3G drive tests.
RANAP is the protocol used over the Iu interface to connect the WCDMA RAN to the core network. It carries NAS messages between the core network nodes and UEs. RANAP uses SS7 over ATM for signaling and supports either transparent mode or support mode for transporting user data over the Iu user plane. The main functions of RANAP include establishing and releasing signaling connections, transferring NAS messages for mobility management and call control, and setting up GTP tunnels for user data transport.
The document discusses LTE channels and the MAC layer. It describes the functions of the MAC layer, including mapping between transparent and logical channels, error correction through HARQ, and priority handling with dynamic scheduling. It then provides details on the LTE downlink channels, including both logical channels like PCCH, BCCH, CCCH, and DCCH, as well as transport channels like PCH, BCH, DL-SCH, MCH, and PDCCH.
Engineer EMERSON EDUARDO RODRIGUES PRESENTA UNA NUEVA VERSION
THERE ONE NEW ONE PRESENTATION FOR 2G AND 3G ENGINEERING FOR LTE AND PSCORE ENGINEER
ITS VERY SUITABLE FOR YOUR RESEARCH AT ALL LEVELS OF RF ENGINEERING AND PS CS
The document discusses the X2 interface and X2 handover procedure in LTE networks. The X2 interface connects two neighboring eNodeBs and establishes an X2 connection through the X2 setup procedure. The X2 handover procedure allows handing over a UE's connection from a source eNodeB to a target eNodeB, involving preparation where the target allocates resources and the UE connects to it, and execution including a path switch to route data to the target eNodeB. Key information like UE context and bearers is exchanged between eNodeBs through the X2 interface to enable smooth handover.
The document discusses HSPA systems and provides an overview of High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA). It notes that HSPA was introduced to improve the packet data capabilities of WCDMA in response to growing interest in rich calls, mobile TV, and streaming services. HSDPA introduced faster scheduling, link adaptation, and hybrid automatic repeat request to improve downlink performance, while HSUPA later improved uplink performance using similar techniques. The document provides technical details on the channels, link adaptation, scheduling, mobility, and retransmissions used in HSDPA and HSUPA systems.
The document describes the initialization and setup procedures between a Node B, RNC, and core network nodes in a UMTS network. It includes procedures for Node B initialization like the audit procedure, cell setup procedure, and common transport channel setup procedure. It also covers call flow scenarios for RRC connection establishment, location updates, circuit switched call setup, and handovers between nodes. The end-to-end protocol stacks for the circuit switched and packet switched domains are illustrated as well.
Engineer EMERSON EDUARDO RODRIGUES PRESENTA UNA NUEVA VERSION
THERE ONE NEW ONE PRESENTATION FOR 2G AND 3G ENGINEERING FOR LTE AND PSCORE ENGINEER
ITS VERY SUITABLE FOR YOUR RESEARCH AT ALL LEVELS OF RF ENGINEERING AND PS CS
The document describes the Radio Link Control (RLC) sub layer in 3GPP LTE, including its functions, modes of operation (unacknowledged, acknowledged, and transparent), state variables, procedures for transmitting and receiving data, and retransmission processes. The RLC sub layer provides transfer of upper layer PDUs, error correction, segmentation/reassembly, reordering, duplication detection, and supports both acknowledged and unacknowledged data transfer.
Introduction of PS Core Network Elements and little bit of EPC/LTE Network. This is introductory slides pack for a 10 class/slides set for detail introduction of 2G/3G and LTE PS Core Network.
The document discusses routing and routing protocols. It defines routing as the process routers use to forward packets toward their destination network based on the destination IP address. It describes static routing, where network administrators manually configure routes, as well as dynamic routing protocols, where routers automatically share information to build and update routing tables. It outlines common routing protocols including RIP, IGRP, EIGRP, OSPF, and BGP and their key characteristics such as the metrics and timers they use.
Engineer EMERSON EDUARDO RODRIGUES PRESENTA UNA NUEVA VERSION
THERE ONE NEW ONE PRESENTATION FOR 2G AND 3G ENGINEERING FOR LTE AND PSCORE ENGINEER
ITS VERY SUITABLE FOR YOUR RESEARCH AT ALL LEVELS OF RF ENGINEERING AND PS CS
Difference in Rrc procedures lte and 3GPraveen Kumar
- RRC in LTE has only two states - RRC_IDLE and RRC_CONNECTED, compared to five states in 3G. This simplifies RRC state handling and RRM algorithms.
- Signaling radio bearers are simplified to SRB0, SRB1, and SRB2 (still being finalized) compared to four SRBs in 3G.
- RRC procedures and messages are simplified in LTE compared to 3G. This reduces signaling overhead and complexity.
The document provides an overview of LTE (Long Term Evolution) Release 8. It discusses key requirements for LTE such as supporting high data rates, low latency, and an all-IP network. It describes the network architecture including components like eNodeB, MME, S-GW, and P-GW. It also covers functionality of these components and the protocol stack consisting of PDCP, RLC, MAC, and RRC layers. Mobility management, QoS, and comparisons to other technologies like HSPA+ and WiMAX are also summarized.
The document discusses distance vector routing protocols and their characteristics. It explains that distance vector protocols advertise routes as vectors containing the distance and direction to a destination. Periodic full table updates are sent to neighbors on a regular basis. Common distance vector protocols include RIP, IGRP and EIGRP. EIGRP differs in that it sends partial updates only when there are topological changes rather than full periodic updates.
QOS-B ASED P ERFORMANCE E VALUATION OF C HANNEL -A WARE /QOS-A WARE S CHEDULI...csandit
Long Term Evolution (LTE) is defined by the Third G
eneration Partnership Project (3GPP)
standards as Release 8/9. The LTE supports at max 2
0 MHz channel bandwidth for a carrier.
The number of LTE users and their applications are
increasing, which increases the demand on
the system BW. A new feature of the LTE-Advanced (L
TE-A) which is defined in the 3GPP
standards as Release 10/11 is called Carrier Aggreg
ation (CA), this feature allows the network
to aggregate more carriers in-order to provide a hi
gher bandwidth. Carrier Aggregation has
three main cases: Intra-band contiguous, Intra-band
non-contiguous, Inter-band contiguous.
The main contribution of this paper was in implemen
ting the Intra-band contiguous case by
modifying the LTE-Sim-5, then evaluating the Qualit
y of Service (QoS) performance of the
Modified Largest Weighted Delay First (MLWDF), the
Exponential Rule (Exp-Rule), and the
Logarithmic Rule (Log-Rule) scheduling algorithms
QOS-B ASED P ERFORMANCE E VALUATION OF C HANNEL -A WARE /QOS-A WARE S CHEDULI...csandit
This document evaluates the quality of service performance of three channel-aware/QoS-aware scheduling algorithms (Modified Largest Weighted Delay First, Exponential Rule, Logarithmic Rule) for video applications over LTE and LTE-Advanced networks. It first provides background on LTE network architecture and operation. It then describes how the simulator was modified to implement carrier aggregation in LTE-Advanced, allowing evaluation of scheduling performance with increased bandwidth. Simulation results show that carrier aggregation improved average throughput, reduced packet loss and delay, and increased fairness compared to LTE without aggregation.
This document provides an overview of LTE basics including:
- The LTE network architecture uses a flat design with eNodeBs and an Evolved Packet Core consisting of the MME, S-GW, and P-GW.
- Key LTE technologies include OFDMA in the downlink, SC-FDMA in the uplink, and MIMO. The radio protocol stack separates user and control planes.
- LTE aims to provide high peak data rates up to 100Mbps downlink and 50Mbps uplink, low latency under 10ms, improved spectrum efficiency, and support for bandwidths up to 20MHz.
- LTE-Advanced further improves on LTE with data
1. The document discusses LTE PDCCH optimization techniques, including assigning UEs unique C-RNTIs after initial connection to identify PDCCH messages, using the PDCCH as a pointer to PDSCH resource allocations, and different PDCCH aggregation levels used based on radio conditions.
2. It describes PDCCH settings like the number of symbols used, maximum CCEs per frame, thresholds for CCE allocation, and adjusting the aggregation level based on coding rate or BLER.
3. counters and features are discussed for monitoring PDCCH and CCE usage, as well as techniques for improving PDCCH capacity like increasing transmit power or reducing the aggregation level.
This document provides an introduction to W-CDMA, the 3GPP standard for 3G wireless communication. It describes the frame structure, physical channels, and protocol layers of the W-CDMA standard. Key aspects covered include the asynchronous and GPS-synchronized timing modes, transport and physical channels, downlink pilot structure using common and embedded pilots, and primary broadcast channels including P-CCPCH and CPICH. The introduction of W-CDMA aimed to provide higher capacity than 2G standards like GSM and support new applications through high-speed data transmission.
RRC protocols in LTE help manage radio resources and signaling between the UE and network. Key aspects include:
1. RRC defines two UE states - RRC_CONNECTED for active data transfer and RRC_IDLE for idle/paging.
2. Signaling Radio Bearers (SRBs) carry RRC and NAS messages using different logical channels.
3. System information is broadcast on common channels, informing UEs of network configurations and neighbor cells.
4. Handover between cells is supported through the X2 interface for intra-LTE handovers and inter-RAT handovers to other technologies like UMTS or GSM.
1. The 3G network consists of the User Equipment (UE) or mobile phone and the UMTS Terrestrial Radio Access Network (UTRAN) which includes base stations and network intelligence.
2. The UE and UTRAN contain four main layers - physical, MAC, RLC, and RRC layers. The RRC layer handles functions like broadcasting information, establishing connections, and controlling quality of service.
3. Below the RRC layer is the RLC layer, which is focused on data transfer functions like segmentation and reassembly. The MAC layer handles logical channels and prioritization, while the physical layer handles radio functions.
Alternatives to Redistribution Communities in Inter-domain traffic Engineering cscpconf
Vivekanandan discusses alternatives to using redistribution communities for inter-domain traffic engineering. He summarizes MPLS and Ambient Networks as two approaches that provide more effective control over traffic than communities. MPLS separates control and forwarding planes and allows traffic to be engineered using constraints and explicit label switched paths. Ambient Networks integrate different network technologies and domains through its control space architecture, and can engineer traffic using multi-commodity flow optimization and local load balancing approaches.
Factors affecting lte throughput and calculation methodologyAbhijeet Kumar
This document discusses LTE throughput calculation and application in wireless rollout projects. It provides a history of LTE development and commercialization. It then explains factors that impact LTE throughput calculations including frequency bandwidth, resource blocks, modulation schemes, coding rates, UE categories, and MIMO capabilities. The document demonstrates calculations for theoretical peak throughput in different scenarios and factors that should be considered in LTE network planning and deployment projects.
This document provides an overview of RRC procedures in LTE, including:
1. Key differences from 3G include simplified RRC states (connected/idle instead of multiple states), single shared MAC entity, and elimination of common/dedicated channels.
2. RRC functions like system information broadcasting, connection control, configuration of signaling radio bearers, and measurement reporting.
3. Core RRC procedures like paging, connection establishment, reconfiguration, and handover are described at a high-level. Paging is simplified compared to 3G which had multiple paging types.
LTE (Long Term Evolution) was developed by 3GPP to improve the mobile phone standard and address future needs. It aims to improve spectral efficiency, lower costs, enhance services, utilize new spectrum, and better integrate with other standards. LTE provides peak download speeds of at least 100Mbps and upload speeds of 50Mbps with latency under 10ms. LTE Advanced was later developed to fulfill the ITU's 4G requirements of peak speeds up to 1Gbps for low mobility. The LTE architecture uses E-UTRAN on the access side and EPC on the core side. Key network elements include eNodeBs, MMEs, SGWs, and PGWs. LTE uses protocols like S
The document discusses the LTE attach call flow process, including:
1. An overview of the evolution of cellular systems and the introduction of 5G.
2. The decoding processes involved in LTE attach which include frequency scanning, decoding the PSS, SSS, MIB, PDCCH, and SIBs.
3. The steps in the LTE attach process such as the random access channel process, sending an RRC connection request, receiving an RRC connection setup, and responding with an RRC connection setup complete message.
This document summarizes new developments in 5G NR user plane protocols:
1) It introduces the work plan for 5G NR and describes non-standalone and standalone 5G NR architectures.
2) It describes new 5G NR user plane protocols including the Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), and Medium Access Control (MAC) layers.
3) Key enhancements in 5G NR include support for multiple numerologies, reduced latency through changes like removal of concatenation, and improved hybrid automatic repeat request (HARQ) through code block groups.
The document discusses HSDPA (High Speed Downlink Packet Access), a 3G mobile telecommunications standard that allows networks to have higher data transfer speeds and capacity. Key points:
- HSDPA was introduced in 2005 and allows peak data rates of 14.4 Mbps compared to 2 Mbps for standard WCDMA. It uses shared channel transmission, fast scheduling, adaptive modulation/coding, and HARQ.
- Planning HSDPA deployment requires analyzing existing network performance, dimensioning configurations, parameter planning, and performance monitoring. Critical aspects include carrier configuration, hardware capacity, transmission capacity, and coverage strategy.
- HSDPA improves on WCDMA through features like shared channel transmission, channel
Overview 5G NR Radio Protocols by Intel Eiko Seidel
Very nice overview of the 5G Radio Interface protocol as defined by 3GPP in NR Rel.15. The document was submitted to the 3GPP workshop on ITU submission in Brussels on Oct 24, 2018.
Similar to 19080432 rrc-procedures-in-lte-comments-v1-121115125316-phpapp02 (20)
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