Gsm interfaces ppt

66874
A Interface. The specification of the radio interface has Air Interface: MS to BTS. used to convey over the radio interface messages originating from Cell Broadcast Centre; Release'99, the only specified broadcasting service is SMS Cell Broadcast service, which is derived from GSM; the service offered by BMC protocol is also called a Radio Bearer. multi-service options (combination of basic services). Jul 26, 2012 Various Interfaces and theirMapping SKGOCHHAYAT RTTC, BHUBANESWAR. MS is the user's handset and has two parts; Mobile Equipment. Number of channels in GSM. To most people cellular communications means only the air interface. Cellular communications. RRC layer. voice connections, data connections, short message service. Freq. When the MSC provides the interface with the other networks in the GSM GSM Interfaces and Protocols Telecommunications MSc in Software Development © Dr. GSM: Mobile Services. Radio equipment; User interface; Processing capability and memory required for various tasks. . Burst. GSM offers. UPLINK FREQUENCIES. Bearer Services – interface to the physical medium (transparent for example in the case of voice or non transparent for What is Protocol Stack ? The term stack also refers to the actual software that processes the protocols. The main service of an MS is the capability of initiating and accepting a call GSM: Mobile Services. Uplink/Downlink of 25MHz. TDMA. 124 channels of 200 kHz. D H Pesch, CIT, 2000 1 Introduction • Communication between the several logical and physical entities of a GSM PLMN is based on specified interfaces and associated protocols • Interfaces of radio access part – Radio Interface The GSM radio interface. This interface is supported by GSM MAP/C protocol. The spectrum efficiency depends on the radio interface and the transmission, more particularly in aspects such as the capacity of the system and the techniques used in order to decrease the interference and to improve the frequency reuse scheme. Jul 26, 2012 Different interfaces in GSM network Other G MSCs VLRs OMC VLR B D BSS A C MS BTS BSC MSC HLR AUC Um Abis E F Other Other EIR MSCs Networks. 890 -915 MHz for Up link; 935 - 960 MHz for Down link. Physical Layer; Data Link the main third generation air interface in the world; deployment has been started in Europe and Asia, including Japan and Korea, in the same frequency band, around 2 GHz; WCDMA the guidelines for radio network dimensioning; gives an example of detailed capacity and coverage planning; covers GSM co-planning. Cellular networks. Gaussian Minimum Shift Keying (GMSK). ----. cell site. ‹#› . Modulation used. UPLINK AND DOWNLINK FREQUENCY SEPARATED BY 95MHZ. Combination of frequency division and time division multiplexing. 15. Three service domains. several types of connections. air interface. Base Transmitter Station. D H Pesch, CIT, 2000 1 Introduction • Communication between the several logical and physical entities of a GSM PLMN is based on specified interfaces and associated protocols • Interfaces of radio access part – Radio Interface C Interface Interface between HLR and MSC: the C interface The HLR-MSC interface is applicable when the GMSC requests and queries the routes of calls or short messages from the HLR. 05 Page 71 Monday, November 30, 1998 2:07 PM C H A P T E R 5 GS…Apr 14, 2013 Operations and Maintenance Support Includes database management, traffic metering and measurement, and a man– machine interface. DOWNLINK FREQUENCIES. Mobile Station. But there is a lot more to the cellular network than that ! Using GSM (2G) terminology :. Bearer Services – interface to the physical medium (transparent for example in the case of voice or non transparent for Broadcast Multicast Control protocol (BMC). This is the Radio Frequency link between MS and BTS. Mobile Station (MS). Um Interface. GSM Architecture. GSM standard has two simultaneous multiplexing techniques. Jun 9, 2010 GSM. The main service of an MS is the capability of initiating and accepting a call GSM Interfaces and Protocols Telecommunications MSc in Software Development © Dr.  Time Division Multiple Access (TDMA)  Resource is shared by time  Each C Interface Interface between HLR and MSC: the C interface The HLR-MSC interface is applicable when the GMSC requests and queries the routes of calls or short messages from the HLR. FDMA. MS End Protocol Stack. • Internetwork Interworking Manages the interface between the GSM network and the PSTN. 3. So, for example, programmers sometimes talk about loading a stack, which means to load the software required to use a specific set of protocols