Data transmission method of optical access network, and system and device thereof
First Claim
1. An optical access network (OAN) system, comprising:
- a remote radio unit (RRU);
an optical network device;
an optical distribution network (ODN);
an optical line terminal (OLT) device, wherein;
the RRU is configured to receive a wireless service data, convert the wireless service data into a first frequency signal, and send the first frequency signal to the optical network device;
the optical network device is configured to receive the first frequency signal from the RRU, convert the first frequency signal into a fiber transmission signal, and send the fiber transmission signal to the ODN;
the ODN is configured to transmit the fiber transmission signal sent by the optical network device to the OLT device; and
the OLT device is configured to receive the fiber transmission signal transmitted by the ODN, and convert the fiber transmission signal into a signal of another standard protocol which is sent to an IP edge node through a convergence network;
wherein the optical network device comprises an optical network unit (ONU) and is specifically configured to;
receive the first frequency signal from the RRU, adapt a rate of the wireless service data from the RRU to a GPON transmission rate, perform frame format conversion on the first frequency signal to obtain a first adaptation signal, and convert the first adaptation signal into the fiber transmission signal according to an optical transmission protocol.
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Accused Products
Abstract
An optical access network (OAN) system is provided. In the system, a remote radio unit (RRU) receives and sends a wireless signal and implement conversion between the wireless signal and a first frequency signal; an optical network device receives and sends the wireless signal, and implement conversion between the wireless signal and the first frequency signal and conversion between the first frequency signal and a fiber transmission signal; an optical distribution network (ODN) connected to the optical network device transmits the fiber transmission signal; an optical line terminal (OLT) device receives and sends the fiber transmission signal, and implements conversion between the fiber transmission signal and a second frequency signal, conversion between the second frequency signal and a base band signal, and conversion between the base band signal and a signal of another standard protocol.
42 Citations
10 Claims
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1. An optical access network (OAN) system, comprising:
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a remote radio unit (RRU); an optical network device; an optical distribution network (ODN); an optical line terminal (OLT) device, wherein; the RRU is configured to receive a wireless service data, convert the wireless service data into a first frequency signal, and send the first frequency signal to the optical network device; the optical network device is configured to receive the first frequency signal from the RRU, convert the first frequency signal into a fiber transmission signal, and send the fiber transmission signal to the ODN; the ODN is configured to transmit the fiber transmission signal sent by the optical network device to the OLT device; and the OLT device is configured to receive the fiber transmission signal transmitted by the ODN, and convert the fiber transmission signal into a signal of another standard protocol which is sent to an IP edge node through a convergence network; wherein the optical network device comprises an optical network unit (ONU) and is specifically configured to; receive the first frequency signal from the RRU, adapt a rate of the wireless service data from the RRU to a GPON transmission rate, perform frame format conversion on the first frequency signal to obtain a first adaptation signal, and convert the first adaptation signal into the fiber transmission signal according to an optical transmission protocol. - View Dependent Claims (2, 3, 4)
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5. An optical line terminal (OLT) device, comprising:
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a data processing unit; a rate adaptation unit; a base band unit (BBU); an interface unit, wherein; the data processing unit is configured to receive a fiber transmission signal from an optical distribution network (ODN), convert the fiber transmission signal into a adaptation signal according to an optical transmission protocol, and send the adaptation signal to the rate adaptation unit; the rate adaptation unit is configured to receive the adaptation signal from the data processing unit, perform rate adaptation and frame format conversion on the adaptation signal to obtain a frequency signal, and send the frequency signal to the BBU; the BBU is configured to receive the frequency signal sent by the rate adaptation unit, convert the frequency signal into a base band signal, and send the base band signal to the interface unit; and the interface unit is configured to receive the base band signal sent by the BBU, and convert the base band signal into a signal of another standard protocol which is sent to an IP edge node through a convergence network. - View Dependent Claims (6, 7, 8)
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9. A data transmission method of an optical access network (OAN), comprising:
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receiving, by a remote radio unit (RRU), wireless service data of a wireless user, and performing frequency processing on the wireless service data to obtain a first frequency signal, and sending the first frequency signal to an optical network unit (ONU); adapting, by the ONU, a rate of the wireless service data from the RRU to a GPON transmission rate, performing frame format conversion on the first frequency signal to obtain a first adaptation signal;
converting the first adaptation signal into a fiber transmission signal according to an optical transmission protocol, and transmitting the fiber transmission signal over an optical distribution network (ODN); andconverting, by an optical line terminal (OLT) device, the fiber transmission signal transmitted through the ODN into a signal of another standard protocol which is sent to an IP edge node through a convergence network. - View Dependent Claims (10)
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Specification