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Packet transmission technology solution

Mobile communications and broadband services have become the present mainstream for operators: Traditional transmission network is facing tremendous challenges stemming from mobile backhaul services, group services and VOIP of high value, IPTV of high bandwidth and broadband services leading to an increased requirement for network traffic. As all kinds of services evolve to IP mode rapidly, transport network has to meet higher demands on bandwidth, transmitting efficiency, access flexibility and safety reliability. The operator's key requirements for transport network are as follows:

Universal access and transmissio for multi-service
High reliability and safety
Precise synchronization ability based on packet
Highly efficient and flexible bandwidth utilization
Unified and efficient platform of operation and maintenance
Future-oriented and smooth evolution

General description of the solution

ZTE provides technical solutions of packet transport in line with telecommunications trends, which uses merging PTN equipment based on packet kernel technology. The scheme can carry integrated services and provide an end-to-end packet transport solution for operators. Furthermore, it can work at reducing the cost of network construction, operation and maintenance, and can help operators to realize smooth network evolution and rapid development of services.

The solution can fulfill the following function:

w One network can adapt to all services framework including 2G, 3G, HSPA+, LTE, FMC, group services of high value and OLT upload service access.

w One network can adapt to different traffic categories including TDM, ATM, Ethernet and IP.

The highlights and advantages of the solution

Integration

Technical integration: It can support both MPLS and MPLS-TP technology, and it is cost-effective in comparison to traditional router.
Service integration: It can carry, operate and maintain 2G, 3G, HSPA+, LTE and group services of high value uniformly.
Equipment convergence: ZXCTN converging equipment can unify the hardware platform, which can reinforce MPLS or MPLS-TP by using different software and reduce the risk of operator’s choice.
Rich and flexible access methods and uniform transmission capacity
Unified access technology can support multiple services through rich interface type (E1, STM-N, FE, GE, 10GE), and can use the PWE3 encapsulation technology to uniformly delivery TDM / ATM / Ethernet / IP services.
Integrated architecture design to reduce the risk of operator selection of equipment
It can load different software to support both MPLS and MPLS-TP technology by using the same hardware architecture, and can provide more flexible networking options, while greatly reduce operator’s risks of technology options.
Efficiently transmit packet business by using 100% packet core
It can provide bandwidth statistical multiplexing capabilities by using pure packet core design,which can calmly meet the high bandwidth requirement of LTE, FMC, group services etc.
Precise and flexible synchronization mechanisms to adapt the network develop trends.
Provide synchronous Ethernet, IEEE 1588v2 synchronization solution to meet the mobile network clock / time synchronization requirements; support out band 1PPS + TOD , in band Ethernet interface and synchronous interface to meet the needs of long-term network evolution; adopt the SSM and BMC protocols to achieve link clock and automatic protection switching time, to ensure reliable delivery of synchronization
SDH-like hierarchical OAM for quick fault confirmation
Hardware-based mechanism through hierarchical OAM support (MPLS-TP OAM, MPLS OAM, Ethernet OAM), to achieve carrier-class network automatic fault detection, protection switching, performance monitoring, fault location and other functions
Multi-level security to ensure network reliability
Have a sound device level, network level, and client-side protection, to ensure 50ms protection switching, carrier-class reliability of 99.999%
Fine end to end QoS management for service
Sufficient to ensure that different services on delay, jitter, and bandwidth requirements. Support traffic classification, congestion control, congestion management, traffic policing, and traffic shaping to meet the user-level multi-service bandwidth control, to achieve service access to the SLA, the refinement of operations for the carriers to provide protection.

The benefits of the solution

ZTE’s packet transfer network solution can help operators to build the integrated service bearing network which has unified and flexible access, efficient bearing, high reliability and low-cost.

w Technical integration saves equipment investment and maintenance cost, and it can fit for the future network development trends. Service integration can be convenient for operators’ management and dropped the maintenance cost. And the equipment convergence can reduce the risk of customer’s choice.

w The high quality of clock and time synchronization in the packet transport network is profitable for operators to reduce the dependence on using GPS for this purpose. And it will help operators reduce the network risk and the maintenance cost.

w Highly reliable network helps operators reduce maintenance costs, reduce customer complaints, improve the Satisfaction of customer, and help operators to gain a better position to compete in market.

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