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VPNv4 routing control for LTE X2 SON using unique routing target

A routing and unique technology, applied in the field of networking, can solve problems such as large management overhead, costly routing state, error-prone configuration, etc.

Inactive Publication Date: 2019-05-14
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a given eNodeB may typically have around 20-30 neighboring eNodeBs at a time, each of these neighboring eNodeBs will require a route configured for each of its neighbors, requiring a huge and error-prone configuration and also costly A large amount of routing state to maintain in the network
Furthermore, since the number of eNodeBs in the network tends to fluctuate with network expansion, reconfiguration and maintenance, there is thus a huge administrative overhead for maintaining such static routes

Method used

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  • VPNv4 routing control for LTE X2 SON using unique routing target
  • VPNv4 routing control for LTE X2 SON using unique routing target
  • VPNv4 routing control for LTE X2 SON using unique routing target

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Embodiment Construction

[0028] In the following description, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In other instances, well-known circuits, structures and techniques have not been shown in detail in order not to obscure the understanding of the description. Those skilled in the art, with the included description, will be able to implement the appropriate function without undue experimentation.

[0029] References to "one embodiment," "an embodiment," "example embodiment," etc. indicate that the described embodiments may include a particular feature, structure, or characteristic but that not every embodiment necessarily includes the particular feature, structure or feature. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure or characteristic is described in conjunction with an embodiment, it is understood that it ...

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Abstract

According to one embodiment, the network device automatically creates a better routing entry for inter-base station traffic communicated between the local base station and the remote base station over the backhaul network. The network device automatically discovers the IP address of the remote base station for inter-base station traffic based on traffic communicated by the local base station to the network device or based on traffic communicated between the local base station and the remote base station. The network device generates a unique route target (RT) value based on the remote IP address and inserts it into the import map target list. Upon receiving a route update message including a route transmitted by a route reflector in the backhaul network, the network device installs the route entry into the route selection based on the RT value of one of the determined routes matching the unique RT value in the target list of the imported route table.

Description

technical field [0001] Embodiments of the present invention relate to the field of networking, and more specifically, network topology discovery and automatic creation of network routes between base stations for inter-base station traffic. Background technique [0002] The 3rd Generation Partnership Project (3GPP) defines standards and technical specifications called Long Term Evolution (LTE) for 3G mobile systems. In contrast to the circuit-switched configuration employed by previous cellular communication networks, LTE was designed to support packet-switched services, providing seamless Internet Protocol (IP) between a user equipment (UE) device and one or more packet data networks (PDNs). ) connectivity without interference during end-user geographic movement. [0003] While the term "LTE" includes the evolution of Universal Mobile Telecommunications System (UMTS) Radio Access to Evolved UTRAN (E-UTRAN), there are also non-radio aspects under the term "System Architectur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/00H04W24/02H04W84/18H04L45/74
CPCH04W24/02H04W92/20H04W40/02H04L45/46H04L45/04H04L45/54H04W40/06H04W40/00
Inventor A.威尔金森N.卡瓦克
Owner TELEFON AB LM ERICSSON (PUBL)