Communication Systems for the Mobile Information Society phần 8 ppsx

... replies to the message with a dynamic service addition response (DSA-RSP) message. 262 Communication Systems for the Mobile Information Society Here, information about the burst that contains the MAC ... overview of the 80 2.16 standard and compares the capabilities and design of the system to other technologies like HSDPA and wireless Communication Systems f...

Ngày tải lên: 14/08/2014, 09:21

... device. The web browser for example is one of the most 100 Communication Systems for the Mobile Information Society Once the attach procedure is complete the mobile is authenticated and known to the network. ... content for which they would also have to pay on the fixed-line Internet. 116 Communication Systems for the Mobile Information Society t...

Ngày tải lên: 14/08/2014, 09:21

... profiles for different applications 332 Communication Systems for the Mobile Information Society Martin Sauter Nortel Networks, Germany 1 Global System for Mobile Communications (GSM) At the beginning ... channel 2 Communication Systems for the Mobile Information Society Figure 1.1 Switching matrix in a switching center designed for voice communication...

Ngày tải lên: 14/08/2014, 09:21

... a timeslot it used for the SACCH. Furthermore, the 25th Figure 1.25 Establishment of a signaling connection 48 Communication Systems for the Mobile Information Society As the MSRN is internationally ... that there are transit switching centers between the G-MSC and V-MSC, which are thus able to forward the call without querying the HLR themselves. 38 Communica...

Ngày tải lên: 14/08/2014, 09:21

... call. Communication Systems for the Mobile Information Society Martin Sauter © 2006 John Wiley & Sons, Ltd 62 Communication Systems for the Mobile Information Society again limited to a certain duration. Other ... call via the Gs interface 82 Communication Systems for the Mobile Information Society Figure 2.14 The GPRS state model the GSM c...

Ngày tải lên: 14/08/2014, 09:21

... evolve the two parts of the network 1 38 Communication Systems for the Mobile Information Society which two are orthogonal to each other (C2,1 and C2,2). On the third level with four chips, there ... and 1 58 Communication Systems for the Mobile Information Society 3.5 The UMTS Terrestrial Radio Access Network (UTRAN) 3.5.1 Node-B, Iub Interface, NBAP, an...

Ngày tải lên: 14/08/2014, 09:21

... to re-establish a channel is about 2.5 to 3 seconds. Therefore, the mobile should only be put 188 Communication Systems for the Mobile Information Society the terminal into Cell-FACH state as quickly ... terminal. Therefore, the SGSN simply forwards all incoming data packets from the GGSN to the RNC regardless of the current state of the mobile. If the mobil...

Ngày tải lên: 14/08/2014, 09:21

... device 2 18 Communication Systems for the Mobile Information Society 80 2.3 (Ethernet) 80 2.11b 80 2.11g 80 2.11a 80 2.2 Logical Link Control (LLC) IP TCP/UDP 3 2 1 4 Application dependent5–7 Figure 4.1 The ... exchange user information with each other if the client device switches to a new access point. Therefore, all access points 230 Communication Systems for...

Ngày tải lên: 14/08/2014, 09:21

... connection, the L2CAP layer can then use this information to reassemble the L2CAP packet from several ACL packets, which is then forwarded to the application layer. 296 Communication Systems for the Mobile ... list that maps the previous service flow identifiers to those of the new cell. The mobile station can thus keep its IP addresses. 3 08 Communication System...

Ngày tải lên: 14/08/2014, 09:21

... indication of the loudness of the signal in the sub-band. 340 Communication Systems for the Mobile Information Society send the business card stored in the retrieving device during a request for a business ... button, the headset sends the following command to the audio gateway to open the speech path: ‘at+ckpd=200’. The mobile phone 3 28 Communication...

Ngày tải lên: 14/08/2014, 09:21