A communication method, device and system

A communication method and communication device technology, applied in the field of communication

Active Publication Date: 2017-11-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a communication method, device and system for solving the problem of implementing different PAM order modulations in the downlink

Method used

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  • A communication method, device and system
  • A communication method, device and system
  • A communication method, device and system

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Embodiment 1

[0047] The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0048] Such as figure 1 As shown, the passive optical network (Passive Optical Network, PON) consists of an optical line terminal (Optical Line Terminal, OLT) at the office side, an optical network unit (Optical Network Unit, ONU) at the user side, or an optical network terminal (Optical Network Terminal) , ONT) and Optical Distribution Network (Optical Distribute Network, ODN). At present, representative PON technologies are GPON (Gigabit-Capable Passive Optical Network, Gigabit Passive Optical Network), EPON (Et...

Embodiment 2

[0090] The embodiment of the invention also discloses a communication device, such as Figure 11 shown, including:

[0091] The processing unit 110 is configured to determine that the PAM order of the pulse amplitude modulation is F, and F is the p power of 2, and 1≤p≤m; it is also used to extend the determined PAM order F to PAM N-order modulation;

[0092] The sending unit 120 is configured to feed back the PAM order F to the optical network unit ONU; communicate with the ONU in an extended PAM N-order modulation format.

[0093] Optionally, the processing unit 110 is further configured to extend the PAM 2-level coding to PAM N-level coding to realize the registration of the ONU. Wherein, the processing unit 110 is also used to extend the PAM 2-level coding to PAM N-level coding to realize the registration of the ONU, specifically including expanding each bit in the data stream to m bits, and extending the second bit to the mth bit The bits are all the same as the first bi...

Embodiment 3

[0097] The embodiment of the present invention also discloses a communication device, such as Figure 12 shown, including:

[0098] The receiving unit 122 is configured to receive the pulse amplitude modulation PAM order sent by the optical line terminal OLT as F, where F is the P power of 2, where p is an integer greater than or equal to 1 and less than or equal to m; receive the pulse amplitude modulation PAM sent by the OLT The data modulated by PAM-N order, where N is 2 to the mth power, where m is an integer greater than or equal to 2;

[0099] The processing unit 124 is configured to use the PAM order of the pulse amplitude modulation as F to demodulate the PAM-N order modulated data sent by the OLT, where p is an integer greater than or equal to 1.

[0100] Optionally, the processing unit 124 is further configured to extend PAM level 2 encoding to PAM level N encoding registration, where N is 2 to the m power, where m is an integer greater than or equal to 2. Specific...

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PUM

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Abstract

Disclosed are a communication method, device and system, the communication method comprising: determining that a pulse amplitude modulation (PAM) order is the p-th power of 2, and 1≤P≤m; feeding back the PAM order to an ONU; extending the PAM order into a PAM-N order, and employing the extended PAM-N order to communicate with the ONU, N being the m-th power of 2, and m≥2. The communication method, device and system of the present invention realize continuous modulation of different downlink PAM orders, thus achieving different ONU adaptive link rate levels.

Description

technical field [0001] The present invention relates to the communication field, in particular to a communication method, device and system. Background technique [0002] With the large-scale deployment of FTTx (Fiber To The x, fiber access x, such as FTTH stands for fiber to the home, FTTB, fiber into the building), the bandwidth demand for optical access is increasing. Currently, the mainstream of optical access is PON. (Passive Optical Network, Passive Optical Network) technology, PON technology is a point-to-multipoint passive optical network system. A PON network includes an OLT (Optical Line Terminal, Optical Line Terminal) installed in the central control station, and a batch of supporting ONU (Optical Network Unit, Optical Network Unit) or ONT (Optical Network Terminal, Optical Network Terminal) installed in the user's place terminal). The ODN (Optical Distribution Network, optical distribution network) between the OLT and the ONU includes optical fibers and passiv...

Claims

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Application Information

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IPC IPC(8): H04B10/25
CPCH04B10/25
Inventor 叶志成李胜平
Owner HUAWEI TECH CO LTD
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