WR_BT03_E1_1 Channel Structure and Function-44.ppt

There are three categories of channels in 3G LTE - physical, transport, and logical channels. Physical channels carry user data and control messages over the transmission medium. Transport channels offer information transfer between the physical layer and higher layers. Logical channels provide services to the MAC layer and carry different types of control and traffic data.

BTS functions include modulation, channel coding, interleaving, encryption, frequency hopping, frame formatting, and signal strength measurements. The CGI uniquely identifies a cell using LAI and CI. The FCCH carries frequency synchronization information. The SCH carries timing synchronization and BSIC information. The BCCH broadcasts cell information like LAI and CI. The PCH pages mobiles for calls/SMS. The RACH is used by mobiles to request resources. The AGCH sends resource grants in response to RACH requests. The SDCCH is used for location updates, call setup, and SMS. The SACCH carries signal strength measurements and timing/power control information. The FACCH can replace bursts on the SDC

The document discusses SDCCH (Standalone Dedicated Control Channel) configuration and usage in GSM networks. It describes possible SDCCH configurations including SDCCH/8 and SDCCH/4. It also discusses SDCCH holding times for different functions, reasons for SDCCH congestion, and methods to prevent congestion through proper dimensioning of SDCCH resources.

This document discusses various topics related to Long Term Evolution (LTE) including call flow, radio link failure, discontinuous reception (DRX), paging, scheduling, random access channel (RACH) procedure, self-organizing networks (SON), and quality of service (QoS). It provides details on the call flow process when a user equipment (UE) is powered on, performs initial cell selection and attachment, and establishes a default bearer. It also describes procedures for radio link failure, DRX, paging, scheduling, RACH, SON functions including self-configuration and optimization, and QoS with default and dedicated bearers.

This document provides an overview of LTE air interface concepts including: - Main LTE features such as frequency bands and mobility protocols. - The LTE protocol stack including layers such as RRC, PDCP, RLC, MAC and physical. - LTE channel types including logical, transport, and physical channels. - Key physical channel functions like reference signals, synchronization signals, broadcast channels, and control channels. - Uplink/downlink channel structures including time and frequency domain configurations.

This document presents a method for parallel CRC computation that improves on previous approaches. It derives a recursive formula from the polynomial generator degree that allows generation of parallel CRC circuits independently of the technology used. The approach generates an F-matrix from the polynomial that is used to design circuits for processing multiple bits in parallel. Simulation results show the parallel CRC circuits can process data faster than serial LFSR approaches, with 64-bit parallel processing achieving the fastest speed. The method provides a customizable solution for building parallel CRC hardware across different polynomial generators and data widths.

The document summarizes the sequence of events for an eNodeB performing an S1 setup with the EPC and then initiating broadcasts of system information blocks (SIBs) to UEs. It shows the eNodeB sending the RRC Connection Setup message containing UE specific configuration information. The eNodeB first establishes an S1 connection with the MME and then broadcasts the master information block and various SIBs. It then facilitates the random access procedure and sends the RRC Connection Setup message to the UE.

This document provides an overview of how Sage Instrument's 8901A UCTT tool analyzes and measures metrics from 4G LTE signals. It can analyze signals from 1.4MHz to 20MHz bandwidth at up to 10 measurements per second. The tool automatically detects the number of transmit antenna ports and measures various signal characteristics including power levels, modulation quality, control channels, and physical channel allocation. It presents the LTE signals across several views to analyze aspects like frequency response, power levels over time, and signal constellations.

This document summarizes key aspects of the WCDMA physical layer: - Spreading uses channelization codes to separate signals and scrambling codes to separate terminals and cells. Channelization codes increase bandwidth while scrambling does not affect bandwidth. - Transport channels map data to physical channels and are multiplexed. Dedicated channels are reserved for users while common channels can be used by any user. - In the uplink, dual channels are used to avoid audio interference from discontinuous transmission. The DPCCH carries control data and the DPDCH carries data. - In the downlink, DPCCH and DPDCH are time-multiplexed on the DPCH using QPSK.

This document describes various message types and channels used in LTE networks for communication between the UE, eNB, and MME. It includes: 1. S1AP setup request and response messages exchanged between the eNB and MME to establish transport network connections. 2. RRC connection request messages from the UE to eNB to establish connections, including UE identity information. 3. Descriptions of broadcast, system information, and other channel types used for communication between the UE and eNB, including logical channels mapped to transport channels and physical channels.

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The document discusses SDCCH (Standalone Dedicated Control Channel) configuration and usage in a GSM network. It describes: - Possible SDCCH configurations including SDCCH/8, SDCCH/4, and combinations using 1 or 2 timeslots and TRXs. - How logical channels like SDCCH, TCH, SACCH, and CBCH are mapped to physical timeslots and frames. - The usage of SDCCH for functions like registration, call setup, SMS, and supplementary services. - Parameters involved in SDCCH dimensioning like traffic estimations, congestion reasons and detection, and preventative actions.

The document describes a method for unambiguously characterizing 4G LTE signal coverage using PBCH (Public Broadcast Channel) decoding. It explains that by decoding the PBCH bits and checking for errors, one can positively determine signal quality without knowing the original bits. This is more decisive than conventional RSSI or RSRP metrics. The document then provides details on PBCH encoding/decoding processes and how the results (PBCH OK, PBCH poor, PBCH bad) correspond to varying levels of signal coverage and user experience. Test examples demonstrate the different PBCH decoding outcomes.

The document summarizes the channel structure in UMTS systems. It describes the different types of channels including physical channels, transport channels, and logical channels. It then provides details on specific uplink and downlink physical channels, such as the dedicated physical channels (DPDCH, DPCCH), common pilot channel (CPICH), primary common control physical channel (P-CCPCH), and synchronization channel (SCH). The functions of different protocol layers including L1, MAC, RLC, and RRC are also summarized.

The document discusses paging channels and procedures in 3GPP networks. It describes: 1) The Paging Channel (PCH) is a downlink transport channel that broadcasts paging messages to UEs over the entire cell. System Information Block 5 defines which Secondary Common Control Physical Channels (SCCPCHs) carry PCHs. 2) UEs select a SCCPCH to monitor based on the IMSI number. Paging Indicator Channels (PICH) are associated with SCCPCHs and indicate which UEs have a paging message. Paging messages are transmitted on the PCH in SCCPCH frames starting 7680 chips after the associated PICH frame.

The document discusses various channels used in GSM networks. It describes physical channels that transfer bits between network elements and logical channels distinguished by the nature of carried information. It provides details on different types of logical channels including traffic, broadcast, common control and dedicated control channels. It also explains concepts like bursts, frames, multiframe structures and how they are used to organize speech and data on traffic channels.

This document outlines the WCDMA physical layer design. It discusses the WCDMA network architecture and physical layer in detail. Specifically, it describes the uplink and downlink physical channels, transport channels, logical channels, spreading techniques, channelization codes, scrambling codes, and frame structure used in WCDMA. It provides information on uplink and downlink dedicated and common physical channels, and the various coding, modulation, and multiplexing schemes used in the WCDMA physical layer.

This document provides a summary of radio network controller parameters for a ZXUR 9000 UMTS radio network controller. It includes over 50 parameters organized under the section for UMTS logical function configuration. The document was created by ZTE Corporation and provides legal information, a revision history, and table of contents.

This document contains a summary of ground parameters for ZTE's ZXUR 9000 UMTS Radio Network Controller. It includes parameters for various network elements like PLMN groups, equipment, racks, shelves, boards, ports, CPUs and trails. The document provides object IDs, numbers, types and other configuration details for these network elements and components. It is intended to serve as a reference for ground parameters in ZTE's ZXUR 9000 UMTS Radio Network Controller systems.

This document is a performance index reference for the ZXUR 9000 UMTS Radio Network Controller from ZTE Corporation. It contains over 60 metrics for measuring aspects of RRC connection establishment, RAB establishment, call drops, and success rates. Legal information is provided, noting that the document is copyrighted and its contents are confidential and proprietary. Revision history indicates this is the first edition from July 2014.

This document is a reference manual for alarm and notification handling for the ZXUR 9000 UMTS Radio Network Controller. It describes over 120 different alarm codes that could occur in the system, organized by category. For each alarm code, it provides a brief description of what the alarm indicates and troubleshooting suggestions. The document also contains legal and version information for the manual.

The power distribution subrack provides power supply and protection for the entire cabinet. It has dual redundancy power inputs and outputs, short-circuit protection, lightning protection, and power supply and environment monitoring functions.

This document provides a summary of commands for the ZXUR 9000 UMTS Radio Network Controller. It includes over 100 individual command references organized alphabetically. The document was created by ZTE Corporation and contains information on copyright, legal disclaimers, and revision history.

This document provides an overview, installation guide, and operations guide for the ZTE RNC Call Trace (RCT) signaling tracing software. The RCT software allows users to trace and monitor real-time signaling data from multiple 2G/3G network elements to help locate network issues and optimize system performance. It uses a client-server architecture with the server connected to network elements and clients connected to the server to manage tracing tasks. Key functions include adding network elements, creating and monitoring tracing tasks, and viewing historical signaling data files.

The ZXUR 9000 UMTS uses a modular hardware structure consisting of a cabinet, subracks, and boards. The cabinet is a standard 19-inch cabinet that houses power distribution, ventilation, and service subracks. The service subrack contains front boards that provide processing, switching, and interface functions. Software is structured with a distributed architecture. Logically, the ZXUR 9000 UMTS functions as a radio network controller in the UMTS network.

This document provides an overview of the network architecture and functions of major network elements in a UMTS system. It describes how the ZXUR 9000 UMTS fits within the overall network as part of the UTRAN, and defines the roles of key elements like the RNC, Node B, MSC, SGSN, GGSN, HLR, and VLR. The document also outlines the interfaces that allow these elements to communicate with each other.

The document discusses ZTE's SDR based Uni-RAN solution for converged GSM, UMTS and LTE networks. Key points include: 1) The solution uses a shared hardware platform and resource pool to support multiple radio technologies, bands and carriers to reduce costs. 2) It provides a unified RRU and baseband unit with flexible power settings to dynamically adjust coverage. 3) Case studies show the solution helped operators like CSL in Hong Kong smoothly evolve their networks to support newer standards like HSPA+ and LTE.

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