By Jeffrey Bannister
The merging of voice and information on a unmarried community opens robust new probabilities in communications. just a primary figuring out of either applied sciences will make sure you are built to maximize their complete potential.
Convergence applied sciences for 3G Networks describes the evolution from mobile to a converged community that integrates conventional telecommunications and the expertise of the Internet. specifically, the authors deal with the appliance of either IP and ATM applied sciences to a mobile atmosphere, together with IP telephony protocols, using ATM/AAL2 and the hot AAL2 signalling protocol for voice/multimedia and information delivery in addition to the way forward for the UMTS community in UMTS liberate 5/6 All-IP structure.
Convergence applied sciences for 3G Networks :
- Explains the operation and integration of GSM, GPRS, side, UMTS, CDMA2000, IP, and ATM.
- Provides useful examples of 3G connection situations.
- Describes signalling flows and protocol stacks.
- Covers IP and ATM as utilized in a 3G context.
- Addresses problems with QoS and real-time program aid.
- Includes IP/SS7 internetworking and IP softswitching.
- Outlines the structure of the IP Multimedia Subsystem (IMS) for UMTS.
Convergence applied sciences for 3G Networks is suited to pros from the telecommunications, information communications and machine networking industries..
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Extra info for Convergence Technologies for 3G Networks: IP, UMTS, EGPRS and ATM
3 PN sequences Another code type used in CDMA systems is the pseudo-random noise (PN) sequence.
Chapter 9 looks to UMTS Release 5, where IP use is extended through the UTRAN to the BTS. The various transport options for using IP in UTRAN are described. The session initiation protocol (SIP) is explained, as it is now the protocol speciﬁed for VoIP, mobility management and instant messaging in UMTS. This chapter also looks to other IP protocols and their possible use within UMTS, such as multi-protocol label switching (MPLS). 1 CIRCUIT- AND PACKET SWITCHED DATA Many practical communication systems use a network which allows for full connectivity between devices without requiring a permanent physical link to exist between two devices.
For pulse-type waveforms, such as CDMA codes, the cross-correlation between two signals is deﬁned as: R12 (τ ) = υ1 (t)υ2 (t + τ ) dt where R12 is the correlation between two signals υ1 and υ2 , and τ is their relative time offset. For the code to be effective, the receiver must know the speciﬁc code (in this case 10010110) which is being used for transmission and it must also be synchronized with this transmission. On reception the receiver can then simply reintroduce the correct code which is multiplied with the incoming signal and reproduce the actual symbol sent by the transmitter.
Convergence Technologies for 3G Networks: IP, UMTS, EGPRS and ATM by Jeffrey Bannister