Mobile telecommunications switching office mtso connects calls between mobile units. It provi des registration, authentication, call location, intermsc handovers and. The base station controller manages one or more btss and handles radio. Basic network design electronic frontier foundation. I have a base controller in my mvc 5 project which implements some shared functionality. We differentiate between the access network base station subsystem and core network network subsystem. Huawei bsc6900 multimode base station controller software security target 20111220 huawei bsc6900 multimode base station controller software security target page 15 58. The gsm base station controller bsc corre sponds to the wcdma publishing industry india pdf radio network support realtime serving radio network controller srnc switching, which require. The root authentication keys are stored in a separate authentication centre with a custom cryptographic. Base server system a system compliant with the server base system architecture sbsa server base system architecture arm arm arm architecture reference manual. U radio statiion subsystem network and switching subsystem ms ms consisting of bts base transceiver station.
The baseband unit bbu is the baseband processing unit of telecom systems. Ltesystem architecture evolution s1c base station to mme interface multihomed to multiple mme poolshomed to multiple mme pools sctpip based s11 mme to sae gw gtpc version 2c version 2 x2 inter base station. The msc plays a significant role in handovers, particularly handovers involving multiple base station controllers known as interbsc or intramsc handovers as well as those involving multiple mscs, known as intermsc handovers. It handles radio channel setup, frequency hopping, and handovers.
Each bss comprises many base station controllersbsc that connect the mobile station to the network and switching subsystem nss through the mobile switching center 4. Base station base station controller base station base station msc isdn gsm core circuit switched hlr auc eir gmsc transmission. The open base station architecture initiative obsai was a trade association created by hyundai, lg electronics, nokia, samsung and zte in september 2002 with the aim of creating an open market for cellular network base stations. Low cost and high performance tetra base station the mts4 is a high performance base station with improved power efficiency and lower operating costs. Intelligent network in call in architecture connection with gsm network prepaid service ussd call back service ucb. I am using unity 3 to inject these implementations into my controllers, a pattern which has worked fine until i switched my controllers to inherit from this base controller. The radio components of a bss may consist of four to seven or nine cells. Base station bs includes an antenna, a controller, and a number of receivers. Key bsc functions include radio network management such as radio frequency control, bts handover management and call setup.
The conventional commercial cellular network architecture is based on an infrastructure of stationary base transceiver stations btss connected to the wired core network. Base station design and architecture for wireless sensor networks david kohanbash, abhinav valada, george kantor carnegie mellon university robotics institute, 5000 forbes ave, pittsburgh, pa, 152 usa corresponding author email. Key bsc functions include radio network management such as radio frequency control, bts. A base station controller bsc is a critical mobile network component that controls one or more base transceiver stations bts, also known as base stations or cell sites. The compact mts4 sets new standards for high capacity, high redundancy base stations while ensuring site acquisition and installation costs are as low as possible. Huawei bsc6900 multimode base station controller software. The design philosophy has been to use advanced technology in order to create a point to multipoint system with high bandwidth efficiency, and comparatively large range. We describe the design concept, the architecture, and. This security target is for the evaluation of the product huawei bsc6900 multimode base station controller software version v900r0c01spc010. The mobile station ms consists of the terminal equipment and the subscriber identity module sim.
One base station controller bsc can control multiple btses. With a frequency reuse of 1, it is very important to. Implementation of all or part of an obsai specification may require. One is the importance of base stations in making possible the system capabilities that users want to use and that network operators want to offer. A single base station transceiver can provide service via multiple. The base station is divided into a main unit and a radio unit such that the radio unit is positioned proximate to the antennas and the main unit is remotely located from the radio unit. The base station subsystem bss is the section of a traditional cellular telephone network which is responsible for handling traffic and signaling between a mobile phone and the network switching subsystem. Wireless base station evolution nxp semiconductors. Huawei bsc6900 multimode base station controller software security target version. The bsc controls mobile trabc and the bsm man ages the bs including the bts and the bsc. Bs base station bsc base station controller bss base station subsystem bts base transceiver station cac call admission control cdma code division multiple access cdpd cellular digital packet data damps digital advanced mobile phone system etsi european telecommunication standards institute fa foreign agent fdma frequency division multiple access.
The paper will focus on cellular base stations for two reasons. A logical diagram for the architecture of the signalling links is given in. Open base station architecture initiative wikipedia. Cellular networks khoury college of computer sciences. Motorola dimetra tetra system centralised architecture advantages security the centralised architecture stores all authentication keys centrally. It connects directly to your facilitys data historians, allowing plantesp to complement any automation environment whether dcs or plcbased. E2e network slicing is a foundation to support diversified 5g services and is key to 5g network architecture evolution. The device enables the base station to register mobile phones in the cell a geographic area to perform handoff, call setup and call termination. Base station controller base transceiver station bsc etsi. This video briefly explains all the major subsystems architecture of a gsm network. Plantesp control monitoring software leverages your existing process data to identify and isolate production performance issues.
Cellular architecture cont one base transceiver station bts per cell. Two types of channels available between mobile unit and bs. A telecommunication base station transceiver subsystem that can be easily configured to provide single or multicarrier frequency service. One or more base transceiver station provides physical connection of a mobile station to the network in form of air interface. Transmit power regulation thus provides more capacity in the network. Plugins exist for all major historians including osisoft pi, aspen ip21, canary labs, and other private. It is presented in this form to emphasize that models. The base station controller bsc the bsc manages the radio resources for one or more btss. A typical wireless base station consists of the baseband processing unit bbu and the rf processing unit remote radio unit rru. Gsm architecture explained global system for mobiles.
Umts network architecture basic configuration, release 3 bss bsc rns rnc cn node b node b a iups iur iub uu msc. Louis cse574s 2010 raj jain cellular architecture cont base station controller bsc and base transceiver station bts one bts per cell. It allows the mobile switching center to communicate with networks like pstn, isdn, cspdn, pspdn and other data networks. Improving rf power amplifier efficiency in 5g radio systems.
Abbreviated as bsc, the base station controller is a combination of device and software used by a base station. It consists of the base transceiver station which contains the radio transceivers and handles the protocols for. Base station system structure wireless innovation forum. Gsm architecture and subsystems by standard the gsm network is divided into four 4 subsystems 1. Base station subsystem bss bss consists of base station controller and one or more base transceiver stations bts each bts defines a single cell oincludes radio antenna, radio transceiver and a link to a base station controller bsc bsc reserves radio frequencies, manages handoff of mobile unit from one cell to. A small network operator may employ only one msc, while a large operator requires multiple mscs. The bbu has the advantage of modular design, small size, high integration, low power consumption and easy deployment. Gic generic interrupt controller vm virtual machine pe processing element, as defined in the arm arm. The bsc also translates the kbps voice channel used over the radio link to the standard 64 kbps. Basic network design the cell base station the cell base station is the physical location of some of the equipment needed to operate the wireless network, such as antennas, gps timing systems, cell towers etc. The hope was that an open market would reduce the development effort and costs traditionally associated with creating base station products. Gsm explain gsm architecture with a neat block diagram. It is the mobile phone which consists of the transceiver, the display and the processor and is controlled by a sim card operating over the network.
Design and analysis of cellular mobile data networks andr. Base station design and architecture for wireless sensor. The base station subsystem has two components, the base transceiver station bts and the base station controller bsc. Radio station subsystem rss components ms mobile station bss base station subsystem. Umts system architecture and protocol architecture. It acts as an interface between the mobile station and the network subsystem. Real time authentication is carried out in the zone controller using session keys. The gsm architecture consists of four basic components 1. The bss carries out transcoding of speech channels, allocation of radio channels to mobile phones, paging, transmission and reception over the air interface and many.
The base station subsystem bss handles the radio access functions and includes the base transceiver system bts and the base station controller bsc. Figure 1 gives an simplified view of the network architecture with the three main network elements bts, bsc and msc. Xu chen, dongning guo, in wireless public safety networks 2, 2016. The nss controls the switching functions of the gsm system. Various radio technologies for the public safety network have been investigated in. Development of the base station controller and manager in the. Base station controller, bsc, and the base transceiver station, bts. The gsm base transceiver station bts connects to the base station controller bsc by an e1 connection known as the abis interface.
Base station efficiency enhancement the proliferating frequency bands and modulation schemes of modern cellular networks make it increasingly important that basestation power amplifiers offer the right combination of output power, efficiency and multiband support at both peak and average power levels. These include zte zxg10 ibsc base station controller, v6. The bsc is the connection between the mobile and the msc. Pdf gsm architecture bts bsc msc find, read and cite all the research you need on researchgate. In the above diagram, the light blue box area belongs in toe while the orange box area belongs in toe environment. The base transceiver station bts the base station controller bsc the bts and the bsc communicate across the specified abis interface, enabling operations between components that are made by different suppliers. Us6801788b1 distributed architecture for a base station. Based on nfv and sdn, physical infrastructure of the future network architecture consists of sites and threelayer dcs. As an example, our mission control computer prototype is detailed in section 6. It is hoped that the model can also be the basis for standardization of base station components. Depending on load, subscriber behavior and morph structure, it can have different configurations standard configuration each bts is assigned a different cell identity ci and several bts. According to different service requirements, fiberoptic cable availability and network resource allocations, ran real time and nonreal time resources can be deployed on the site or on the access cloud side.