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Fixed mobile convergence wavelength division access ring and access method

A technology of fixed-mobile integration and access ring, which is applied in the direction of ring electromagnetic network, data exchange through path configuration, selection device of multiplexing system, etc., can solve the problem of impossible access means for ordinary users, and achieve convenient Effects of network construction and operation and maintenance, low cost requirements, and flexible bandwidth allocation

Active Publication Date: 2014-09-03
WUHAN POST & TELECOMM RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, PON technologies cannot meet the high-quality requirements of mobile backhaul and private lines for VIP customers. MSTP (Multi-Service Transmission Platform), PTN (Packet Transport Network, packet transport network) / IPRAN (IP Radio Access Network Carrier, IP-based wireless backhaul bearer network) and other technologies make it impossible to use it as an access method for ordinary users in terms of cost

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  • Fixed mobile convergence wavelength division access ring and access method
  • Fixed mobile convergence wavelength division access ring and access method
  • Fixed mobile convergence wavelength division access ring and access method

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0035] See figure 1 As shown, the embodiment of the present invention provides a fixed-mobile converged wavelength division access ring, which includes a CO (Central Office, central computer room) OLT (Optical Line Terminal), m OADM (Optical Add-Drop Multiplexers, optical Add / drop multiplexer) node and several R-OTU (Remote-Optical Transport Unit, remote optical transport unit), with CO OLT as the network convergence point, CO OLT and m OADM nodes together form a ring topology, m is greater than A positive integer equal to 1. There are a total of m+1 nodes in the ring topology, and each node is divided into two directions, E (East) and W (West). E (East) and W (West) are used to represent m+1 The connection relationship of nodes in the ring topology is clockwise, the E direction of the previous node is connected to the W direction of the next node; ...

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Abstract

The invention discloses a fixed mobile convergence wavelength division access ring and an access method and relates to the metro area access field. The access ring takes CO OLT as a network convergent point to form annular topology, the ring internally comprises a main fiber and a standby fiber, each area business is accessed to OADM through R-OTU; under the main state, in a downlink direction, a signal sent by the CO OLT to the OADM realizes clockwise transmission in the main fiber; in an uplink direction, a signal sent by the OADM to the CO OLT realizes anticlockwise transmission in the standby fiber; in a standby state, after a node next to a fault point switches a signal to the standby fiber, a signal sent by the CO OLT to the OADM realizes anticlockwise transmission in the standby fiber, and a signal sent by the OADM to the CO OLT realizes clockwise transmission in the standby fiber. The fixed mobile convergence wavelength division access ring can satisfy low cost requirements of fixed access, mobile backhaul and robustness requirements of a great customer hotline, is convenient for network establishment and operation and maintenance, is consistent with trends of large bandwidth access and network flatness, is flexible in bandwidth distribution and is easy to upgrade.

Description

Technical field [0001] The invention relates to the field of metropolitan area access, in particular to a fixed-mobile integrated wave division access ring and an access method. Background technique [0002] According to the "Broadband China" strategy, in order to meet the continuous growth of user access bandwidth demand, the user access bandwidth of developed cities in China should reach 1Gb / s (Gbits per second) by 2020. Because it is facing a large number of ordinary users, the most important requirement of access technology is low cost. Therefore, PON (Passive Optical Network), which has advantages in cost, has become the main technology in the access field because of its large capacity and large bandwidth. EPON (Ethernet Passive Optical Network, Ethernet passive optical network) / GPON (Gigabit-Capable PON, Gigabit Ethernet passive optical network) has been commercially available on a large scale around the world, 10GEPON / GPON is gradually entering the market, and standardiza...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04B10/275H04Q11/00
Inventor 张新全程容薛道均杨奇
Owner WUHAN POST & TELECOMM RES INST CO LTD
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