NGN Research in China

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NGN Research in China

• Jiang lin-taojianglt_at_ public.bta.net.cn

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• 1. The Development of Communication Is in Front
  of a Crossroad

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The development of Internet is in front of a
crossroad

• The service capability should be improved.
  Especially, it should provide multimedia service
• Security Problems
• Commercial Model Problems
• The concept and the requirement of NGI were put
  forward in 1996. Except the problems on making it
  larger and faster was solved satisfactorily, no
  one has been solved very well
• The current techniques can not meet the demand of
  development. And the direction of the techniques
  development is not clear. The development of
  Internet is in front of a crossroad.

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The development of communication network is in
front of a crossroad

• The society need various services. The multimedia
  service is the inevitable trend of the service
  development
• The operators expect to integrate the services,
  so as to improve the competition ability, and to
  increase the benefit of the investment
• The current techniques are not enough to meet
  this demand
• There is no verdict on NGN in the world yet
  Several points of view still exist at the same
  time. And the direction of the development of NGN
  is not clear. The development of NGN is in front
  of a crossroad.

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The development of the enterprise network is in
front of a crossroad

• All the services of enterprises have adopted IP
  techniques
• The core services data of enterprises require the
  high security and reliability of the network
• The enterprise network need to carry real-time
  services
• The current IP techniques can not meet the
  requirement of the development of the enterprise
  network
• The enterprises are hard to support the network
  structure of 2 layer 3layer
• The development of the enterprise network is in
  front of a crossroad.

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The development of communication is in front of a
crossroad

• The development of communication network is in
  front of a crossroad. Which direction should the
  development of communication network go? What is
  the trend of the development of NGN? How to
  develop the communication network next for the
  domestic operators? What kind of products should
  the equipment manufactures produce to meet the
  demand of the future market? All of these
  problems are puzzling the communication industry,
  and have affected the development of the
  communication industry.

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• 2. The Driving Force for Developing the NGN

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1. NGN is the inevitable trend of the technique
development (1/3)

• The communication network is the outcome of the
  gradual development. The co-existence of several
  communication networks (telephony network, data
  network, Internet etc.) goes against the
  development of communication. Both the users and
  the operators hope to simplify the network in
  order to integrate all the communication services
  to a single network, which can decrease the
  operation cost. As a result, it can decrease the
  prices of the communication service.
• The current techniques used in the communication
  network can not meet the demand of the
  communication development. The development of the
  communication network need the introduction of
  new techniques.

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The inevitable trend of the technique development
(2/3)

• IP communication network is the trend of
  the development
• 
  
• 
  
  packaged voice
• Fixed telephone ? IP network
• full IP solutions
• 3G ? IP network
• Data ? IP network

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2. The demand of the communication operating
industry (1/3)

• The phenomenon of competition on communication
  has appeared. It should be the competition of
  high level. It should be the competition of new
  services. It should be the competition of new
  ideas of the operators on network construction,
  operation and maintenance. This can urge the
  operators to pay attention to the construction of
  NGN as well as the development of the new
  services carried on NGN.

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The demand of the communication operating
industry (2/3)

• The contribution rate of telephone service to the
  communication service is decreasing. And that of
  data service and integration service is
  increasing at the same time. This urges the
  operators to start the construction of NGN as
  early as possible, which is beneficial to the
  development of new services, so as to realize a
  new economic point of growth.

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The demand of the communication operating
industry (3/3)

• The traditional operators want to supplement
  their communication services networks to make
  them complete. And the new operators hope to
  establish communication networks to enter into
  the communication services field. They are sure
  to adopt new techniques to realize this instead
  of adopting traditional techniques. So the demand
  for the NGN techniques is very urgent. For the
  operators in China, It is not simply the problem
  of NGN, but the problem of how to establish the
  NGN and what kind of network should be
  established.

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The demand of the development of the
communication equipments manufacturing industry

• The technique trend is not clear. The investment
  motives are dispersed. And the investment risk
  increases. In the past 10 years, the new
  communication techniques have emerged in
  endlessly. For every technique has its own
  features, in order to acquire as large as
  possible the shares, manufacturers have to spend
  both person and material resources in studying,
  developing and testing the techniques. When
  developing the NGN products, for there is no
  leading one in the current NGN techniques, the
  technique trend is not clear when investing to
  the NGN equipments, which results the
  manufacturers have to invest to all the new
  techniques. This is why the technique trend is
  not clear, and the investment motives are
  dispersed, and the investment risk increases.

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• 3. The Division of the Generations of the
  Telecommunication Networks and the IP Network

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The reasons and the accordance for the division

• The development of the services promotes the
  upgrading of the communication networks
• The determinant accordance for the division of
  the generations of communication networks is the
  basic technique or the core technique
• For more than a hundred of years, the basic
  techniques or the core techniquesare listed as
  following in order
• analog communication technique
• TDM based circuit switching technique
• packet switching technique

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The communication network of the first
generation analog communication network

• core technique analog
  communication
• 
  technique
• services telephone
• transmission technique analog transmission
  technique
• switching analog circuit
  switching
• 
  (manual connection, step by
• 
  step system automatic
• 
  telephone exchange,cross-
• 
  bar exchange)
• features single service
  network,
• 
  namely the communication
• 
  network is only the telephone
• 
  network

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The communication network of the second
generation circuit switching communication
network

• core technique TDM based circuit
  switching
• 
  communication technique
• services telephone
• transmission technique TDM based digital
• 
  transmission technique (SDH,
• 
  PDH etc.)
• switching TDM based
  switching
• 
  technique (digital process
• 
  controlled exchange)
• features single service
  network, namely
• 
  the communication network is
• 
  only the telephone network

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The communication network of the third
generation packet switching communication
network

• core technique packet switching
  communication
• 
  technique
• services telephone
  service, data service,
• 
  multimedia service
• transmission technique packet based digital
  transmission
• 
  technique
• switching packet switching
  technique (packet
• 
  exchange, Router etc.)
• features the multiple
  services network and
• 
  the single service carrying network
• 
  are separated. So does the service
• 
  network and the service carrying
• 
  network.

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The current communication network
transitional communication network

• core technique circuit switching
  and packet switching
• 
  technique
• services telephone
  service, data service,
• 
  multimedia service
• transmission technique TDM based digital
  transmission technique
• 
  (SDH, PDH etc.)
• switching circuit
  switching technique (digital process
• 
  controlled exchange )and packet
• 
  switching technique (packet exchange,
• 
  Router)
• features Multiple
  services network co-exists with
• 
  multiple service carrying network. So does
• 
  the service network and the service
• 
  carrying network are separated.
• trend of development The current
  communication network is in
• 
  front of a crossroad, and need a clear
• 
  development direction.

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The meaning of NGN

• NGN is a kind of communication network with all
  the features of the third generation
  communication network, which is controllable,
  maintainable and administrable, with a good
  commercial mode and the objective of commercial
  operation.

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The features of NGN (1/2)

• a communication network based on the packet
  switching technique
• a network which is controllable, maintainable and
  administrable, with a good commercial mode and
  the objective of commercial operation
• the multiple services network and the single
  service carrying network are separated. So does
  the service network and the service carrying
  network

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The features of NGN (2/2)

• a safe and dependable network
• a network with the capability of providing QoS of
  telecommunication level
• a network with the capability of sustainable
  development, high practicability and high
  expansibility

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The trend of the development of NGN IP
communication network (1/2)

• The IP communication network is completely
  different from the IP network which is designed
  on the basis of Internet concept. It maintains
  the essential key features, namely the IP
  communication network will be based on the packet
  switching technique, adopting the
  connectionless-oriented working method. The
  complex stream controlled technique will not be
  used among the nodes of the network equipments.
  Especially the connectionless-oriented working
  method and the absence of the complex stream
  controlled technique are the soul of the IP
  network, and are unchangeable.

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The trend of the development of NGN IP
communication network (2/2)

• The IP communication network will adopt the
  design concept based on the communication network
  which is a commercial network, and is
  controllable, maintainable and administrable,
  with a good ecotypic mode. It does not operate
  with the users as core elements, and the
  self-restrict of the users as basis, but is
  established on the basis of the complete and
  comprehensive administration of network by the
  operators. The security of the service network
  and the trust between the nodes of the service
  network equipments are guaranteed by the network
  operators. Also the insurance of the resources
  required for the service network for the QoS and
  the assignment and the preparation of the network
  resources are provided by the network operators.

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• 4. The Key Techniques of NGN

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The IP communication network (1/2)

• The IP communication network is a network that
  adopts connectionless-oriented packet switching
  technique, based on the TCP/IP protocol. It can
  carry all the current communication services, and
  realize the complete integration of all the
  communication services into a single IP network
• The IP communication network is a network of
  IPv6, Which has abundant address resources, and
  can support the sustainable development of the
  communication network

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The IP communication network (2/2)

• It can assign the all the network resources
  automatically according to the design
  requirements for the services by the operators,
  so as to guarantee the QoS of the current
  communication services and the services possibly
  generated in the future
• It is a safe and reliable network, which provides
  degree of reliability and safe mechanism
• It is a administrable and maintainable network,
  which has the capability of providing
  comprehensive after-services to the operators.
• It is a value-added chain, which has the
  capability of making all the merchants on it be
  profitable

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The general of the key techniques problems (1/2)

• The IP communication network is completely
  different from the IP network which is designed
  on the basis of Internet concept. It maintains
  the essential key features, namely the IP
  communication network will be based on the packet
  switching technique, adopting the
  connectionless-oriented working method. The
  complex stream controlled technique will not be
  used among the nodes of the network equipments.
  Especially the connectionless-oriented working
  method and the absence of the complex stream
  controlled technique are the soul of the IP
  network, and are unchangeable.

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The general of the key techniques problems(2/2)

• The problem of the QoS of the IP communication
  network
• The security and the reliability of the IP
  communication network
• The commercial model and relative techniques of
  the IP communication network
• The profitable model of the service network
• The network that can be sustainable developed
  (the network of IPv6)
• The technique problems on high speed and broad
  bandwidth
• The individualized communication capability
• The integrated services system of single carrying
  network and multiple accessing techniques.

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Thank you!