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Transmission device and processing method thereof

A technology of transmission device and processing method, applied in transmission system, selection device, electromagnetic wave transmission system, etc., can solve problems such as fiber breakage, and achieve the effect of highly reliable transmission

Inactive Publication Date: 2014-01-29
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, since optical transmission utilizes optical fiber as a transmission medium, there is a risk that the optical fiber may be broken due to earthquakes, fires, road works, etc.

Method used

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  • Transmission device and processing method thereof
  • Transmission device and processing method thereof
  • Transmission device and processing method thereof

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Embodiment Construction

[0038] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0039] figure 1 is to show the application of the transmission device 2 according to this embodiment (see figure 2 ) diagram of the structure of the communication network 50.

[0040] The communication network 50 has a radio terminal 51 such as a cellular phone, a radio base station 52 , a radio line control station 53 , a core network 54 , and an external network 55 .

[0041] Each radio terminal 51 is capable of performing communication within a range capable of receiving radio waves from an arbitrary radio base station 52 .

[0042] Each radio base station 52 is connected as an upstream station to a radio line control station 53 which controls a plurality of radio base stations 52 .

[0043] Furthermore, each radio line control station 53 is connected to a core network 54 .

[0044] The core network 54 is connected to an external network 5...

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Abstract

A transmission device comprises: a casing, having a plurality of slots wherein substrates may be freely inserted and removed; at least one control substrate; a PWE interface communication unit which is connected to the control substrate, and which converts either an inputted SDH signal or PDH signal to a packet signal and outputs same to the control substrate; a wireless transmission communication unit which is connected to the control substrate, and which converts the packet signal to a wireless signal and outputs same; and an optical transmission communication unit which is connected to the control substrate, and which converts the packet signal to an optical transmission signal and outputs same. Each unit is disposed in each of the plurality of slots.

Description

technical field [0001] The present invention relates to a transmission device for relaying communication signals and a processing method thereof. [0002] Priority is claimed from Japanese Patent Application No. 2011-113222 filed May 20, 2011, the entire contents of which are incorporated herein by reference. Background technique [0003] Regarding the characteristics of radio transmission using space propagation, transmission performance may vary due to environmental conditions related to weather, obstacles, etc. Therefore, wireless transmission should be operated in restricted frequency bands when weather conditions are bad. [0004] On the other hand, since optical transmission utilizes optical fiber as a transmission medium, there is a risk that the optical fiber may be broken due to earthquakes, fires, road works, and the like. Therefore, if an optical fiber used for optical transmission is broken due to an earthquake or the like, a bypass should be established so tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/74H04J3/00H04W24/04H04W92/12
CPCH04B1/74H04W24/04H04B10/801H04J3/1611H04J3/1623H04J2203/0026H04Q2213/13098H04B10/03H04L12/6418H04Q11/04
Inventor 奥山庆一
Owner NEC CORP
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