Network-based macro mobility in cellular networks using an extended routing protocol

A technology of cellular network and routing, applied in the field of network

Active Publication Date: 2011-04-06
JUMIPER NETWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The architecture described in this paper addresses several shortcomings of existing IP mobility solutions

Method used

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  • Network-based macro mobility in cellular networks using an extended routing protocol
  • Network-based macro mobility in cellular networks using an extended routing protocol
  • Network-based macro mobility in cellular networks using an extended routing protocol

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0079] figure 1 is a block diagram illustrating a system including an exemplary cellular network 10 . Such as figure 1 As shown, cellular network 10 includes gateway devices 12A, 12B (“gateway devices 12 ”) as well as anchor device 16 , base stations 18A-18Z (“base stations 18 ”), and mobile device 20 . exist figure 1 In the example shown, the cellular network 10 is connected to a packet-based public network 22, which may represent, for example, the Internet or any other packet-based public access network or private computer network. Mobile device 20 may also be referred to as a mobile user. Although the cellular network shown for ease of illustration includes only two gateway devices 12, an anchor device 16, and a mobile device 20, the cellular network 10 may include multiple gateway devices and multiple Anchoring the device. Therefore, the present invention should not be limited to figure 1 Exemplary embodiment shown.

[0080] The base station 18 has a wireless connec...

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Abstract

A new architecture provides network-based mobility in cellular networks that is built on Internet Protocol (IP)/Multiprotocol Label Switching (MPLS) technologies, such as Virtual Private Local Area Network (LAN) Service (VPLS), the Border Gateway Protocol (BGP) and BGP MPLS Layer 3 Virtual Private Networks (VPNs). The architecture consists of several building blocks that provide functionality for different aspects of cellular network mobility. One building block is network-based macro mobility in IP/MPLS networks. The macro mobility techniques described herein are built on extensions to a routing protocol such as BGP. Another building block relates to transferring subscriber context between network devices while preserving the IP address of the subscriber. The techniques described herein provide a subscriber context transfer mechanism for mobile subscriber management that is built on extensions to a routing protocol such as BGP. Another building block of the mobility architecture is network-based micro mobility based on VPLS.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 61 / 143,993, filed January 12, 2009, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to networks, and more particularly to cellular networks. Background technique [0004] A cellular network is a collection of cells, where each cell includes at least one base station capable of transmitting and relaying signals to users' mobile devices. "Cell" generally refers to different regions of a cellular network that use specific frequencies or frequency ranges to transmit data. A typical base station is a tower with multiple antennas attached to transmit and receive data over specific frequencies. Mobile devices, such as cellular or mobile phones, smart phones, camera phones, personal digital assistants (PDAs), and laptop computers, can initiate or transmit signals at specified frequencie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/00H04W88/08H04W88/16H04L45/02H04L45/50
CPCH04W8/082H04W88/16H04W76/022H04L45/36H04L45/02H04W80/04H04L63/0272H04W40/36H04L45/50H04W76/12
Inventor 拉胡尔·阿加沃尔
Owner JUMIPER NETWORKS INC
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