Lte physicallayer overview peter wang january, 16, 2011 2. Layer 2 contains the layers pdcp, rlc, mac and bmc. Possibility of fast rate change every 10 ms support of fast power control. The main features provided by wcdma physical layer are. Physical layer wcdma for umts wiley online library. Wideband code division multiple access wcdma is the physical layer used for universal terrestrial radio access utra fdd mode. A physical layer performance simulation system for umts. This different rf interface and physical layer meant that totally new equipment was required both in the radio network subsystem and obviously for the mobile handsets or ues. Cell search and cell selection in umts lte application note. In case of dispute, the reference shall be the printing on etsi printers of the pdf version kept on a specific network drive.
Utran umts terrestrial radio access network handles all radio. Comprehensive coverage of umts 3g news, licensing, business developments, 3g wcdma telecommunication technology, multi media mobile phones and future communications. Channelisation codes are orthogonal codes, based on orthogonal. Physical layer standard for cdma2000 spread spectrum.
Main page frame burst types phy gsm stack speech processing arfcn channel types gsm security network. Introduction to umts technology 1 principles of wcdma 1 spread spectrum 1 protocols and channels 2 protocol architecture 2 layer 1 l1 or physical layer 2 layer 2 l2 or data link layer 2 layer 3 l3 or network layer 3 transport channels 4 downlink common and dedicated 4 uplink common and dedicated 4 logical channels 5 control channels 7. In case of dispute, the reference shall be the printing on etsi printers of the pdf version kept on a specific network drive within etsi secretariat. The umts world is an 3g mobile system news and information provider. Umts network architectur e cn and an entities and procedures 3gpp ts 23. This book describes the physical layer of umts universal mobile telecommunication system which is one of the five members of the imt2000 family of standards. The physical layer parameters set by utran may vary between control and data. Overview of the 3gpp long term evolution physical layer 1 1 introduction the 3gpp long term evolution lte represents a major advance in cellular technology. Umts radio interface physical layer free download as powerpoint presentation. This tutorial section on gsm basics covers following sub topics. This layer provides reliable data transmission between two nodes of the network and mulitplexes data onto channels among other things 1, p. Protocol and physical layer, qualcomm umts university. Nov 20, 2011 chockalingam dept of ece, iisc, bangalore tfi and tfci transmitter transport chl 1 transport chl 2 transport block transport block transport block transport block tfi tfi tfci coding and multiplexing physical layer higher layer dpcch qchl dpdch ichl physical control chl physical data chl e. This information is now transmitted using two different signals, generated by layer 1.
A functional description for some of the blocks is included and some. The physical layer of the universal mobile telecommunications system this book describes the physical layer of umts universal mobile telecommunication system which is. Lte provides a packet switched model at the sap, but retains a circuit switched model at the phy. Services umts most of 3g licenses in europe required operator to deploy a umts system covering x% of population by a specific date y germany. Radio interface protocol architecture around the physical layer. Physical layer standard for cdma2000 spread spectrum systems revision d copyright 3gpp2 and its organizational partners claim in this document and individual organizational partners may and issue documents or standards publications in individual organizational partners name based on this document.
Wcdma refers to the fdd physical layer and the protocols that support it. A complete set of physical layer variables can be modified in the simulator. The radio interface is layered into the three protocol layers i. Jan 16, 2009 transport channels and their mapping to the physical channels. The two signals, carrying the physical layer identity and the physical layer cell identity group, are the primary and the secondary synchronization signals respectively. Umts overview and learn some important concept about umts architecture. The universal mobile telecommunications system umts is a third generation mobile cellular system for networks based on the gsm standard. Long term evolution protocol overview nxp semiconductors. Umts long term evolution lte technology introduction. Physical layer provides its services to datalink layer. The enodeb can estimate the code rate and modulation scheme by using the sounding reference signal srs. The physical layer itself maintains the continuous connection model, especially on the downlink, where there is continuous transmission.
The proposed umts physical layer simulation system is described. Lte is designed to meet carrier needs for highspeed data and media transport as well as highcapacity voice support well into the next decade. This tutorial on umts covers umts logical channels, transport channels and physical channels. Wcdma for umts radio access for third generation mobile communication edited by harri holma and antti toskala. Umtswcdma physical layer technical overview syed ismail. Umts networks oliver waldhorst, jens muckenheim oct11 4 umts network architecture basic configuration, release 3 bss bsc rns rnc cn node b node b a iups iur iub uu msc sgsn gs gmsc ggsn hlr gn gr gc c d e auc h eir f gf pstn gi gb iucs vlr b gp vlr g bts bts um rnc abis msc b pstn pstn source. Developed and maintained by the 3gpp 3rd generation partnership project, umts is a component of the international telecommunications union imt2000 standard set and compares with the cdma2000 standard set for networks based on the competing cdmaone. The umts physical layer and rf interface is totally different to that of gsm. Overview of the 3gpp long term evolution physical layer.
Spreading and scrambling transport channel combining soft handover compressed mode power control. Umts radio interface physical layer multiplexing radio. After getting strong concept of umts radio architecture and procedures, we worked on different rrm techniques and in the end we analyze two power control algorithms to understand and get some practical. This layer defines the hardware equipment, cabling, wiring, frequencies, pulses used to represent binary signals etc. List of standards for release 3, 4 and 5, respectively 3gpp tr 21. Scribd is the worlds largest social reading and publishing site. The physical layer layer 1 sits at the bottom of the open systems interconnect osi model,and is designed to transmit bit streams using electric signals,lights, or radio transmissions. Maximum turbo code block size in umts 5114 size increased in lte such that 1500byte tcpip packet is segmented into two code blocks instead of three. The block diagram for the simulator architecture is presented. Physical layer is the only layer of osi network model which actually deals with the physical connectivity of two different stations.
Wcdma for umts radio access for third generation mobile communication edited. This application note introduces lte fdd and tdd technology and related testing aspects. The chapter presents the wcdma physical layer solutions to meet those requirements. Umts channels logical,transport,physical umts channels. The wcdma technology provides the umts system some of the new functionalities on the air interface. Transport channels and their mapping to the physical channels. Physical layer standard for cdma2000 spread spectrum systems. Layer 1, the physical layer, provides data transport services to higher layers and is based on wcdmatdscdma technology 8. Lte physical layer which in itself is a very large and featurerich topic, particularly as there are different modes of operation fddtdd and different downlink and uplink access technologies ofdma, scfdma, along with.