HHS en04 Services and Connections

Ngày tải lên: 05/10/2013, 08:48

... can calculate a set of (RAND, SRES) 2- tuples in advance, store them in the HLR, and send them on demand to the requesting VLR. The VLR stores this set (RAND[n], SRES[n]) and uses a new 2-tuple ... other data services are similar. As shown in Table 6.2, for the 4.8 kbit/s and 2.4 kbit/s services, blocks of 60 or 36 bit length arrive every 10 ms. Subsequent blocks are combined and a...

Ngày tải lên: 17/10/2013, 21:15

... 00101001 Assignment failure DCCH MS ! N 00101111 Handover access DCCH MS ! N± Handover command DCCH N ! MS 00101011 Handover complete DCCH MS ! N 00101100 Handover failure DCCH MS ! N 00101000 Physical ... the handover procedure, which is also initiated only from the network side and, for example, becomes necessary if the current cell is left. In contrast to assignment command,ahandover comm...

Ngày tải lên: 20/10/2013, 15:15

... connection element between MSC-A and MSC-B is taken down, and a 8 Roaming and Switching 196 Figure 8.13: Intracell and intercell handover Figure 8.14: Internal and external handover connection to the ... of the handover and through transferring the handover decision to the BSS. The GSM handover is thus a network-originated handover as opposed to a mobile-originated handover, where...

Ngày tải lên: 20/10/2013, 15:15

... transparent and nontransparent services. These bearer services carry data between the MT of the mobile station and the Interworking Function (IWF) of the MSC. For the realization of bearer services, ... networktransition switching unit and carried as a voiceband signal in the PSTN to the analog terminal. After these introductory remarks, the GSM data and teleservices and their r...

Ngày tải lên: 24/10/2013, 13:15

... probability, and availability, and it can also be characterized with nontech- nical criteria like ease of operation and comfort of subscriber access or even hot-line and support services. Considering ... response times, etc.), and utilization of network components (hardware and software).The objective is on one hand to ensure a good utilization of resources and on the other ha...

Ngày tải lên: 24/10/2013, 13:15

... channel (multiple access) and how the assignment of radio resources between circuit-switched GSM services and GPRS services is controlled. Afterward, the logical channels and their mapping onto ... data. Now, the SGSN offers a random number RAND to the MS (authentication and ciphering request). The MS calculates SRES and transmits it back to the SGSN (authentication and cipher...

Ngày tải lên: 28/10/2013, 20:15

... server and an SMS service center. However, both concepts have signi®cant disadvantages: supple- mentary services are subject to international standardization, and on the other hand these services ... (,10 s) No Standard priority 4 Subscriber Slow (,10 s) No Lowest priority 12.3.3 New Data Services and Higher Data Rates: HSCSD, GPRS, and EDGE Development also continues with data...

Ngày tải lên: 28/10/2013, 20:15

... seven layers, including carriage and facilitates, devices, software tools, content and services, service and access provision, literacy and social facilitation, and finally governance. 130 Without ... of public services online, e.g. governmental and municipal information and services has become more and more common in Sweden. The Swedish government encourages these...

Ngày tải lên: 04/11/2013, 20:15

... SqlConnection _ (mySqlConnectionString) Dim tkCommand As New SqlCommand _ tkSQLSelect) D. Dim myConnection As New SqlConnection _ (mySqlConnectionString) Dim tkCommand As New SqlCommand _ (tkSQLSelect, ... (myOleDbConnectionString) Dim tkCommand As New OleDbCommand _ (tkSQLSelect) B. Dim myConnection As New OleDbConnection _ (myOleDbConnectionString) Dim tkCommand As New OleD...

Ngày tải lên: 10/12/2013, 14:16