Communication Systems for the Mobile Information Society phần 4 ppsx

... 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. ... for example with the ping command. The following example shows how delay impacts the 110 Communication Systems for the Mobile Informatio...

Ngày tải lên: 14/08/2014, 09:21

... 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 802.16 standard and compares the capabilities and design of the system to other technologies like HSDPA and wireless Communication Systems for...

Ngày tải lên: 14/08/2014, 09:21

... Properties 3 04 6.3 Piconets and the Master/Slave Concept 307 6 .4 The Bluetooth Protocol Stack 309 6 .4. 1 The Baseband Layer 310 6 .4. 2 The Link Controller 315 6 .4. 3 The Link Manager 317 6 .4. 4 The HCI ... 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 ... to the fact that the mobile station first needs to go through the authentication phase and the activation of the ciphering for the channel. Only afterwar...

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...

Ngày tải lên: 14/08/2014, 09:21

... preferred compared to losing the connection entirely. 1 64 Communication Systems for the Mobile Information Society Figure 3. 24 Factors influencing the quality of service and the maximum bandwidth of ... evolve the two parts of the network 138 Communication Systems for the Mobile Information Society which two are orthogonal to each other (C2,1 and C2,2...

Ngày tải lên: 14/08/2014, 09:21

... 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 mobile is currently in either the Cell-PCH or the ... However, as the bearer for a packet- switched connection uses other QoS attributes, the parameters inside the messages will be different. 2 04 Communication Sy...

Ngày tải lên: 14/08/2014, 09:21

... 1/2 2 96 48 18 QPSK, R = 3 /4 2 96 72 24 16-QAM, R = 1/2 4 192 96 36 16-QAM, R = 3 /4 4 192 144 48 64- QAM, R = 2/3 6 288 192 54 64- QAM, R = 3 /4 6 288 216 Table 4. 3 gives an overview of the data ... minimize the chance of a collision with frames of other devices, a Figure 4. 12 Reservation of the air interface via RTS/CTS frames 212 Communication Systems for the...

Ngày tải lên: 14/08/2014, 09:21

... 0–121 3872 54 4 DH3 0–183 585686 4 DM5 0–2 24 4778363 DH5 0–339 7232576 2-DH1 0– 54 345 6 345 6 2-DH3 0–367 11 74 4 1728 2-DH5 0–679 144 85 1152 3-DH1 0–83 5312 5312 3-DH3 0–552 1766 4 2656 3-DH5 ... 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. 29...

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 ... device such as a remote control. 3 34 Communication Systems for the Mobile Information Society Figure 6.18 Protocol stack for the SPP becau...

Ngày tải lên: 14/08/2014, 09:21