WO2019201100A1 - Amcc装置及传输波长调控方法 - Google Patents

Amcc装置及传输波长调控方法 Download PDF

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Publication number
WO2019201100A1
WO2019201100A1 PCT/CN2019/081473 CN2019081473W WO2019201100A1 WO 2019201100 A1 WO2019201100 A1 WO 2019201100A1 CN 2019081473 W CN2019081473 W CN 2019081473W WO 2019201100 A1 WO2019201100 A1 WO 2019201100A1
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WIPO (PCT)
Prior art keywords
amcc
rru
module
signal
transmission wavelength
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PCT/CN2019/081473
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English (en)
French (fr)
Inventor
杨巍
田洪亮
陈爱民
杨波
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中兴通讯股份有限公司
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Priority to EP19788851.4A priority Critical patent/EP3783815B1/en
Publication of WO2019201100A1 publication Critical patent/WO2019201100A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/572—Wavelength control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0213—Groups of channels or wave bands arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • H04J14/0256—Optical medium access at the optical channel layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • H04J14/0272—Transmission of OAMP information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07957—Monitoring or measuring wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components

Definitions

  • the present application relates to the field of communications technologies, but is not limited to the field of communications technologies, and in particular, to an Auxiliary Management Channel Control (AMCC) device and a transmission wavelength control method.
  • AMCC Auxiliary Management Channel Control
  • 5G 5th Generation
  • the requirements for bandwidth and delay of wireless base stations are increasing, and the wireless access field is facing new challenges.
  • the distance from the base station to the Building Base Band Unit (BBU) is not far, and the base station to the BBU uses copper wire or point-to-point fiber access.
  • the amount of data per base station of 5G increases, the delay requirement decreases, and the distribution unit (DU) is farther away from the base station, so using fiber access is a good choice.
  • point-to-point fiber access is used, many long-distance backbone fibers are required, which wastes resources.
  • the wavelength division multiplexing technology is used to implement optical access for each RRU.
  • Each radio remote unit (RRU) occupies one wavelength channel separately, which can realize large bandwidth and low delay access requirements, and can save money. Main fiber.
  • Figure 1 shows a block diagram of a wavelength division multiplexing access.
  • the DU and the RRU communicate through n wavelength channels, and the n wavelengths are combined and split by an Arrayed Waveguide Grating (AWG), so that there is only one backbone fiber.
  • AWG Arrayed Waveguide Grating
  • the DU is inserted into the optical module (the small form pluggable (sfp) packaged optical module is used in the example shown in Figure 1. The actual case can also be other types of packages.)
  • the wavelength of the RRU is inserted into an optical module, and the transceiver wavelength corresponds to an optical module on the DU.
  • the optical modules on the RRU side need to be adjustable.
  • the optical module of the RRU does not know which port of the AWG is connected, it does not know which channel wavelength should be transmitted.
  • the Auxiliary Management Channel Control can be used to transmit wavelength information from the DU to the RRU.
  • the AMCC can be implemented by top modulation or by other means. After receiving the AMCC message, the RRU adjusts the transmit wavelength to the corresponding wavelength. But there are two problems with this approach:
  • the optical module of the DU terminal must be a fixed wavelength, and cannot be a tunable wavelength. Because if the wavelength of the optical module of the DU terminal is also adjustable, the DU terminal does not know which port it is connected to the AWG at the beginning, and cannot determine. Emission wavelength
  • This method requires the DU to have the function of AMCC (some manufacturers' optical modules have AMCC functions, but device control is required to enable this function), but in fact, DUs of different manufacturers do not necessarily have this function; Various equipments are mixed, and equipment management is difficult.
  • the DU device itself is configured with the AMCC function, and the DU device structure needs to be modified. The corresponding hardware and software resources need to be introduced, and the AMCC function of one DU device is only available for its own use, and the usage rate is low.
  • the embodiments of the present application are expected to provide an AMCC device and a transmission wavelength adjustment method.
  • the first aspect of the present application provides an auxiliary channel management control AMCC device, which is independent of the distributed unit DU and the radio remote unit RRU, and includes: an AMCC module, configured to adjust the DU and the RRU by sending predetermined information.
  • a second aspect of the embodiments of the present application provides a transmission wavelength adjustment method, including:
  • the auxiliary channel management control AMCC device independent of the distributed unit DU and the radio remote unit RRU generates predetermined information according to the desired transmission wavelength
  • the predetermined information is transmitted to the DU and/or RRU, wherein the predetermined information is used to adjust a transmission wavelength between the DU and the RRU.
  • the embodiment of the present application provides an AMCC device and a transmission wavelength adjustment method.
  • the AMCC device can be set independently of the DU and the RRU, and can adjust the transmission wavelength between the DU and the RRU through transmission of predetermined information such as an AMCC signal or an AMCC message.
  • predetermined information such as an AMCC signal or an AMCC message.
  • the transmission wavelength of the DU provided with the AMCC function can be flexibly configured, and the wavelength of the transmission information can be selected according to the current demand or the load amount of each wavelength; in addition, the DU itself does not need to configure the AMCC function, and thus does not need to be existing.
  • the optical network equipment such as the DU equipment is modified and compatible with the prior art; at the same time, the AMCC device independent of the DU and/or RRU equipment can be used for sharing by multiple optical network devices, so that the effective use rate is high.
  • 1 is a schematic structural view of an optical network
  • FIG. 2 is a schematic diagram of links of a first AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 3 is a schematic diagram of linking a second AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 4 is a schematic diagram of links of a third AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 5 is a schematic diagram of a link between a fourth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 6 is a schematic diagram of a link between a fifth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 7 is a transmission wavelength adjustment method according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a link between a sixth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 9 is a schematic diagram of a link between a seventh AMCC device, a DU, and an RRU according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of links of an eighth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 11 is a schematic diagram of a link between a ninth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 12 is a schematic diagram of links of a tenth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 13 is a schematic diagram of links of an eleventh AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 14 is a schematic diagram of links of a twelfth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 15 is a schematic diagram of links of a thirteenth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • 16 is a schematic diagram of links of a thirteenth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 17 is a schematic diagram of links of a fifteenth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 18 is a schematic diagram of links of a sixteenth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 19 is a schematic diagram of links of a seventeenth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • 20 is a schematic diagram of links of an eighteenth AMCC device, a DU, and an RRU according to an embodiment of the present application;
  • FIG. 21 is a schematic diagram of links of a nineteenth AMCC device, a DU, and an RRU according to an embodiment of the present application.
  • the embodiment provides an AMCC device, which is independent of the DU and the RRU, and includes:
  • the AMCC module is configured to adjust a transmission wavelength between the DU and the RRU by transmission of predetermined information.
  • the AMCC device provided in this embodiment is an AMCC device that is independent of the DU and the RRU, and may include: a casing in which an AMCC module is disposed, the casing may be provided with an opening, and the port of the AMCC device may pass The opening is exposed, and the AMCC module can be respectively connected to the DU or the RRU through the port of the AMCC device.
  • the port can be a fiber optic port, and the AMCC device can be connected to the DU and/or the RRU via an optical fiber.
  • the AMCC device further includes a controlled port connectable to the control device, operative to receive a control indication sent by the control device, the AMCC module to the DU and/or RRU according to the control indication
  • the predetermined information is transmitted to control the transmission wavelength between the DU and the RRU.
  • the AMCC module is configured to adjust a transmission wavelength between the DU and the RRU according to the sending of the predetermined information.
  • the transmission wavelength is typically the optical wavelength of the optical signal between the DU and the RRU.
  • adjusting the transmission wavelength between the DU and the RRU may include at least one of the following:
  • the correction transmission wavelength is indicated; for example, the manner of indicating the correction transmission wavelength may be various: the correction command is directly sent only to the DU and/or the RRU, and the DU and/or the RRU are received. After the correction command, the correction is performed according to the desired transmission wavelength stored by itself, and it may be necessary to automatically determine the adjustment parameter such as the adjustment amount during the calibration process. In other embodiments, since the AMCC module detects the difference between the transmission wavelength and the desired transmission wavelength between the DU and the RRU, the adjustment parameters such as the adjustment amount are known, so the AMCC module can separately send to the DU and/or the RRU. Adjust the parameters or send adjustment commands and adjustment parameters at the same time. After the DU and/or RRU receives the adjustment information sent by the AMCC module, the transmission wavelength is adjusted.
  • the adjustment information here includes at least one of an adjustment instruction and an adjustment parameter.
  • the AMCC device may be an AMCC device on the DU side, and the AMCC module in the AMCC device may add an AMCC signal or an AMCC message or the like corresponding to the predetermined information by using a signal transmitted between the DU and the RRU.
  • Controlling the adjustment of the transmission wavelength between the DU and the RRU for example, adjusting the optical wavelength at which the RRU transmits the optical signal to the DU, and/or adjusting the optical wavelength at which the DU transmits the optical signal to the RRU; thus, the AMCC device can also make the DU also have an adjustment The function of transmitting wavelengths.
  • an AMCC device independent of the DU and the RRU is provided, so that even if the already set DU and/or RRU device itself is not configured with an AMCC structure for performing transmission wavelength adjustment, the independent AMCC device can be introduced.
  • the dynamic switching and/or dynamic correction of the transmission wavelength ensures flexible deployment of the transmission wavelength and reduction of the adjustment cost; in addition, the AMCC device has the characteristics of compatibility with the prior art.
  • the AMCC module may add an indication adjustment wavelength to the optical signals transmitted by the DU and the RRU.
  • the AMCC device may further include:
  • a first AWG coupled to the AMCC module, is configured to couple a plurality of optical signals to a transmit signal and/or to decouple a receive signal to a plurality of receive signals for transmission to the DU or RRU.
  • the AMCC device further includes a first AWG, and the AWG is connected to the AMCC module. If the AMCC device is located on the DU side, it can also be used to connect with the DU; if the AMCC device is located on the RRU side, it can also be used with the RRU. connection.
  • the first AWG is mainly used to couple a multi-path optical signal of a DU or an RRU into a route transmission signal, which is a composite signal of multiple optical signals, which can be transmitted on a main optical fiber between the DU and the RRU.
  • a received signal received from the primary fiber is split into optical signals that are multiplexed to different ports in the DU.
  • the received signal is also a composite signal.
  • the port in the DU may be a spf port, and may be used to transmit and receive optical signals.
  • the first AWG may be connected to the DU at one end and the AMCC module at the other end, ie the first AMG is located between the DU and the AMCC module; in other embodiments It is also possible that the AMCC module is located between the DU and the first AWG; the first AWG is connected to the DU through the AMCC module.
  • both the first AWG and the second AWG belong to the AWG, and can be used to couple multiple optical signals into one optical signal, or decouple one optical signal into multiple optical signals.
  • the AMCC module includes:
  • An AMCC signal module configured to generate an AMCC signal indicative of a transmission wavelength.
  • the AMCC module includes an AMCC signal module, and the AMCC signal module directly generates an AMCC signal.
  • the AMCC signal herein may be one type of optical signal that can be directly transmitted through the optical fiber, and can be directly used for sending The DU and/or RRU performs switching and/or correction of the transmission wavelength.
  • the AMCC signal module is configured to form the AMCC signal by modulating a modulated signal transmitted by the DU and/or RRU.
  • the AMCC signal can be generated by top modulation without occupying an additional transmission bandwidth between the DU and the RRU.
  • the top modulation may include: performing remodulation of the amplitude of the modulated signal on the modulated signal transmitted before the DU and the RRU, so that the modulated signal not only carries the transmission between the DU and the RRU.
  • the predetermined data also carries the adjustment information.
  • the amplitude of the preset ratio value is added to the modulated signal, after the DU and/or the RRU receives the optical signal that passes through the top modulation, if the amplitude value of the optical signal is detected to meet the preset condition, for example, in some
  • the amplitude value in the wavelength is greater than the preset maximum amplitude value, and the optical signal can be considered to carry not only the predetermined data of the DU and the RRU, but also the adjustment information, and when the optical signal is decoded, the light is performed based on the preset ratio value.
  • the adjustment information may be demodulated, and the transmission wavelength between the DU and the RRU may be adjusted according to the adjustment information.
  • the AMCC module completes the transmission of the AMCC signal by means of top modulation without additionally occupying the bandwidth between the DU and the RRU.
  • a fixed initial phase may be set for synchronization when transmitting data.
  • the AMCC module may change the fixed initial phase, thereby performing phase remodulation. It is also possible to perform AMCC signal transmission without additional bandwidth occupation. For example, if the modulated signal is only carried in the modulated signal for transmitting the predetermined data, the initial phase of the synchronization signal is the first phase.
  • the AMCC module can change the phase of the partial synchronization signal (for example, changing the carrier of the synchronization signal). The initial phase), the changed phase is adapted to the adjustment information to be transmitted. If a part of the initial phase of the synchronization signal received by the DU changes, the partially synchronized signal can be considered to be an AMCC signal.
  • the AMCC module includes:
  • An AMCC message module configured to generate an AMCC message, where the AMCC message is used by the DU and/or the RRU to form and send an AMCC signal corresponding to the AMCC message, where the AMCC signal is used by Controlling a transmission wavelength between the DU and the RRU.
  • the AMCC module does not directly generate an AMCC signal, but forms an AMCC message, and the AMCC message is transmitted to the DU or the RRU, and the DU or the RRU forms an AMCC signal according to the AMCC message, so that the DU and the RRU are in the DU.
  • the AMCC signal is transmitted while transmitting the optical signal of the predetermined data.
  • the AMCC module includes: a DU AMCC module configured to adjust an transmit wavelength of the DU; and/or an RRU AMCC module configured to adjust an transmit wavelength of the RRU.
  • the DU is connected to the AMCC module, and the AMCC module connected to the RRU.
  • the DU AMCC module is used to adjust the transmit wavelength of the DU
  • the RRU AMCC module is used to adjust the transmit wavelength of the RRU.
  • the DU AMCC module and the RRU AMCC module are located in the same AMCC device, and the AMCC device can be installed on the DU side.
  • the distance between the AMCC device and the DU is generally higher than that of the AMCC device and the RRU. The distance between them is closer.
  • the AMCC module includes:
  • a shared AMCC module is configured to form an AMCC signal or an AMCC message by the first AWG being connected to the DU or RRU; the AMCC signal is formed based on the AMCC message and used to control a transmission wavelength.
  • the shared AMCC module can be shared by multiple ports of the DU or RRU.
  • the first AWG is connected between the shared AMCC module and the DU, and the plurality of ports of the DU are connected to the plurality of ports of one end of the first AWG, and one port of the other end of the first AWG is connected to the AMCC module, and the sharing is performed.
  • the AMCC module can be used to adjust the transmission wavelength of at least two ports on the DU, for example, for the adjustment of the transmission wavelength of all ports on a DU.
  • the AMCC module includes:
  • a separate AMCC module located between the DU and the first AWG, configured to form an AMCC signal or an AMCC message corresponding to a port of the DU; the AMCC signal is formed based on the AMCC message and used for The transmission wavelength is controlled.
  • the AMCC module is an independent AMCC module, and one of the independent AMCC modules is used for the transmission wavelength of one port on the DU.
  • the AMCC device must be configured with not less than N independent AMCC modules.
  • the independent AMCC module is connected between the port of the DU and the first AWG.
  • the AMCC device further includes:
  • a light detecting module configured to detect a transmission wavelength of the RRU
  • the AMCC module is connected to the optical detection module and configured to generate predetermined information for adjusting the transmission wavelength according to a current transmission wavelength detected by the optical detection module.
  • the light detecting module may be a device capable of detecting a current transmission wavelength in the RRU, for example, an optical detector (PD), and the PD may detect the optical signal power of the corresponding wavelength, if a certain light
  • the power of the signal is lower than the predetermined power value of the desired transmission wavelength, and the transmission wavelength may be considered to be offset, or lower than the specific power value, and the current transmission wavelength may be considered not to be the predetermined wavelength.
  • PD optical detector
  • the light detecting module may be an integral part of the AMCC device, and may be located in the same housing of the AMCC device.
  • the light detecting module may also be separately provided from the AMCC module, and the light detecting module may be connected to the AMCC module through a wire when in use.
  • the light detecting module includes:
  • An independent optical detection module configured to detect a transmission wavelength of a port of the DU or the RRU, and is usually located between a port of the DU and the AWG, for example, a branch transmission path formed by a pair of ports of the DU and the RRU. Configured to detect the transmission wavelength on the branch transmission path.
  • the independent optical detecting module in this embodiment is a branch transmission path connected to a pair of ports of the DU and the RRU, that is, an independent optical detecting module configured to detect the transmission wavelength of a pair of transmission ports.
  • the light detecting module may include:
  • the shared light detecting module is configured to detect a transmission wavelength of at least two ports of the DU or the RRU.
  • the shared optical detection module can be used for the primary transmission path of the DU and the RRU, and can be used for detecting the transmission wavelength of the multiple pairs of transmission ports of the DU and the RRU.
  • the main transmission path is usually a transmission path between two AWGs, and the main transmission path transmits optical signals that are not single wavelengths, and are usually optical signals of multiple wavelengths.
  • both the DU and the RRU couple the plurality of ports into one total port through the AWG
  • the main transmission path is a transmission path between the total ports of the DU and the RRU.
  • the branch transmission path may be a transmission path between the total port and a single port of the DU or a single port of the RRU.
  • a plurality of branch transmission paths within the DU may be aggregated to form the primary transmission path by the AWG; and/or, a plurality of branch transmission paths within the RRU may be aggregated to form the primary transmission path by the AWG.
  • the embodiment provides a transmission wavelength adjustment method, including:
  • Step S110 The AMCC device independent of the DU and the RRU generates predetermined information according to the desired transmission wavelength
  • Step S120 Send the predetermined information to the DU and/or the RRU, wherein the predetermined information is used to adjust a transmission wavelength between the DU and the RRU.
  • the AMCC device provided in the foregoing embodiment may be used in this embodiment, and the AMCC device may be used for switching of transmission wavelengths of DUs and/or RRUs that cannot be configured with AMCC functions or corresponding to AMCC hardware.
  • the calibration has the characteristics of simple implementation, low implementation cost, and strong compatibility with related technologies, and can flexibly configure the transmission wavelength between the DU and the RRU.
  • the step S120 may include transmitting an AMCC signal indicating a transmission wavelength to the DU and/or the RRU.
  • the predetermined information is directly an AMCC signal, which is an AMCC signal automatically formed by an AMCC module in the AMCC device.
  • the AMCC signal can be directly transmitted between the DU and the RRU. A type of signal.
  • the DU and the RRU may be preceded by a dedicated bandwidth for transmitting the AMCC signal, or a bandwidth for transmitting predetermined data before the DU and the RRU.
  • the method comprises:
  • the modulated signal is top modulated and the AMCC signal is generated based on the predetermined information.
  • the AMCC signal in order to transmit the AMCC signal without occupying extra bandwidth, it may be re-adjusted by means of top modulation or the like on the basis of the modulated signal transmitted by the DU and/or the RRU, and a composite optical signal may be generated while carrying the DU.
  • the predetermined data transmitted before the RRU also carries predetermined information for adjusting the transmission wavelength.
  • the step S120 may include:
  • the AMCC device sends an AMCC message only to the DU and/or the RRU, and the DU and/or the RRU form a corresponding AMCC signal based on the AMCC message, and directly transmits the transmission wavelength between the DU and the RRU.
  • the method further comprises: detecting a current transmission wavelength between the DU and the RRU;
  • the step S110 may include: the AMCC device generates the predetermined information according to the current transmission wavelength and the desired transmission wavelength.
  • the optical transmission module such as the PD may be used to detect the current transmission wavelength between the DU and the RRU. For example, if the current transmission wavelength is not the desired transmission wavelength, the DU and the AMCC signal may be sent to promote the DU and The transmission wavelength is adjusted between RRUs.
  • the embodiment of the present application proposes an AMCC device, which is placed on the DU side, and manages the transmission wavelengths of the DU and the RRU by adding an AMCC message to the signal or by additionally adding a signal to control the AMCC function of the optical module.
  • the AMCC device can be used for a DU that does not have the AMCC function of the control optical module, and the tunable module can also be used at the DU end.
  • the transmission direction from the DU to the RRU is provided. Called downlink, the direction of transmission from RRU to DU is called uplink.
  • the DU-end optical module uses a fixed wavelength.
  • the AMCC device re-modulates each DU transmit signal, and adds an AMCC channel management message outside the signal bandwidth to manage the RRU transmit wavelength.
  • the dotted line box is an AMCC device proposed in this example, and includes an AMCC module and an AWG. After the signal of one channel of the DU passes through the AMCC module, it is modulated again, and the AMCC message is added. This message is not within the communication bandwidth, and therefore does not occupy the communication bandwidth.
  • the AMCC module can be implemented using a Variable Optical Attenuator (VOA), and a top modulation with an amplitude of no more than 10% is applied to the modulated optical signal, which can also be implemented by other means.
  • VOA Variable Optical Attenuator
  • the RRU connected to a port of the AWG receives this signal, demodulates the AMCC message, adjusts its own transmit wavelength to the specified wavelength of the AMCC message, and transmits a signal to the DU to implement communication between the DU and the RRU.
  • the AMCC module can monitor the optical power of the optical signal transmitted by the RRU on each channel through the AWG in real time. If the wavelength of the RRU emission light is shifted, the optical power of the signal light will be weakened after passing through the AWG. An AMCC message is added to the signal light to control the wavelength of the RRU uplink emission light to return to the correct wavelength.
  • the DU terminal uses a fixed wavelength
  • the AMCC device uses an additional optical signal to control the optical module of the DU to send an AMCC channel management message to the RRU to manage the RRU transmission wavelength.
  • the dotted frame is the AMCC device of the present example, including the AMCC module and the AWG.
  • the AMCC module can transmit all the n signal light wavelengths of the uplink, and can also transmit the n wavelengths of the non-upstream optical band that can pass through each port of the AWG. .
  • the inclusion of the AMCC module can be implemented with an array laser, or with a tunable laser, or by other means.
  • the AMCC module When the AMCC device needs to configure a certain channel, such as the i-th channel, the AMCC module transmits the i-th uplink optical signal to the DU, and the optical signal is first coupled into the trunk optical fiber, and then comes out from the i-th port of the AWG, and is the i-th of the DU. The optical module corresponding to the road is received. The optical signal notifies the ith optical module of the DU to enable the AMCC function, and sends the AMCC message downward. This can be implemented by writing a modified control optical module register value, or by other means.
  • the RRU After receiving the AMCC message from the DU, the RRU adjusts its own transmit wavelength to the corresponding channel to establish a communication link with the DU.
  • This method utilizes the AMCC function of the optical module in the DU.
  • the AMCC module itself does not generate an AMCC message, but only informs the DU optical module to send an AMCC message.
  • each port connected to the AWG and the DU is divided into a part of the optical monitoring uplink optical power, and the purpose of monitoring the RRU emission wavelength can be achieved. If the transmission wavelength of an RRU is offset, the corresponding optical detector (Photo Detector, PD) receives less optical power, and the PD transmits the message to the AMCC module, and the AMCC module controls the DU optical module of the corresponding channel to transmit downward.
  • the AMCC message adjusts the RRU transmission wavelength to maximize the PD value of the path, and the RRU transmits the correct wavelength optical signal.
  • Figure 9 uses an AMCC module to add information from the control optical module to the backbone fiber and then through the AWG to the optical module on the DU. It is also possible to adopt the structure shown in FIG. 11 to add an AMCC module to each fiber after the AWG.
  • the AMCC module does not need to be multi-wavelength transmitted, and only needs to transmit the wavelength of the corresponding channel, if the DU optical module receives Broad spectrum, the wavelength of each AMCC emission can be consistent.
  • each port connected to the AWG and the DU is divided into a part of the optical monitoring uplink optical power, and the purpose of monitoring the RRU emission wavelength can be achieved. If the transmission wavelength of an RRU is offset, the optical power of the corresponding photodetector (PD) will become smaller.
  • the PD transmits the message to the AMCC module, and the AMCC module controls the DU optical module of the corresponding channel to send the AMCC message downward.
  • the RRU emission wavelength is adjusted to maximize the PD value of the path, and the RRU transmits the correct wavelength optical signal.
  • the PD includes PD1 to PDn.
  • the number of PDs in a specific implementation may be determined according to the type of the PD and the number of independent AMCC modules.
  • the PD shown in FIG. 12 is one of independent light detecting modules; the AMCC module shown in FIG. 12 can be one of independent AMCC modules.
  • the DU terminal uses a fixed wavelength and the AMCC device uses the additional optical signal to provide AMCC channel information to the RRU.
  • the AMCC device proposed in the example in FIG. 13 includes an AMCC module and an AWG.
  • the AMCC module can transmit all of the n signal light wavelengths downstream, and can also transmit the wavelengths of the non-downstream bands that can pass through the respective ports of the AWG.
  • the AMCC module can be implemented with an array laser or with a tunable laser.
  • the iCC module When a certain channel is required to be managed, for example, the iCC module sends the i-th AMCC message downwards.
  • the AMCC signal is first coupled into the trunk fiber, and then passes through the AWG.
  • the i-th port of the AWG enters the RRU optical module, and the RRU receives the signal. After this signal, the optical module is adjusted to the emission wavelength corresponding to the i-th channel.
  • each port connected to the AWG and the DU in the AMCC device is divided into a part of the optical monitoring uplink optical power, and the purpose of monitoring the RRU transmission wavelength can be achieved. If an RRU transmission wavelength is offset, the corresponding optical detector (PD) receiving optical power will become smaller, the PD transmits the message to the AMCC module, and the AMCC module sends an AMCC message downward to adjust the RRU transmission wavelength. The path PD value reaches the maximum and the RRU transmits the correct wavelength optical signal.
  • PD optical detector
  • Figure 13 uses an AMCC module to add an AMCC message to the backbone fiber and then through the AWG to the optical module on the RRU. It is also possible to adopt the structure shown in FIG. 15 to add an AMCC module to each fiber between the DU and the AWG. Thus, the AMCC module does not need to be multi-wavelength transmitted, and only needs to transmit the wavelength of the corresponding channel.
  • each port connected to the AWG and the DU is divided into a part of the optical monitoring uplink optical power, and the purpose of monitoring the RRU emission wavelength can be achieved. If an RRU transmission wavelength is offset, the corresponding optical detector (PD) receiving optical power will become smaller, the PD transmits the message to the AMCC module, and the AMCC module sends an AMCC message downward to adjust the RRU transmission wavelength. The path PD value reaches the maximum and the RRU transmits the correct wavelength optical signal.
  • PD optical detector
  • the DU terminal also uses a tunable optical module.
  • the AMCC device first allocates the DU transmission wavelength, and then adds the AM downlink message to the AMCC message to match the RRU transmission wavelength.
  • the AM's AMCC module can transmit all the light passing through the wavelength of the AWG port, which may be the uplink signal band or the uplink signal band.
  • the AMCC module can be either a laser array or a tunable laser.
  • the AMCC module of the DU is first configured with the transmission wavelength of each optical module of the DU. After the configuration is complete, the DU transmits the downlink optical. The AMCC module modulates each downlink optical again, adds the AMCC message, and configures the transmission wavelength of the RRU.
  • the DU AMCC module can also distribute a part of the downlink optical to monitor the wavelength drift of each channel of the DU in the trunk fiber.
  • An AWG can be integrated inside the DU AMCC module to separately monitor the downstream light by n PDs. If the optical power of a certain channel becomes smaller, the wavelength drift of the corresponding channel occurs, and the DU AMCC module sends an AMCC message to the DU to adjust the wavelength value of the channel to the correct position.
  • the downlink signal light wavelength monitoring can also be implemented by the RRU optical module.
  • the RRU optical module monitors the received optical power. If the received optical power becomes smaller, the downstream optical wavelength of the path drifts.
  • the RRU optical module sends an AMCC message upwards to adjust the wavelength of the optical module at the DU end to the correct position.
  • each port connected to the AWG and the DU is divided into a part of the optical monitoring uplink optical power, and the purpose of monitoring the RRU transmission wavelength can be achieved. If an RRU transmission wavelength is offset, the corresponding optical detector (PD) receiving optical power will become smaller, and the PD transmits the message to the AMCC module, and the AMCC module adds the adjustment information to the downlink signal to adjust the RRU transmission wavelength. The PD value of the way is maximized, and the RRU transmits the correct wavelength optical signal.
  • PD optical detector
  • the DU terminal also uses a tunable optical module, and the AMCC device separately configures the DU and RRU transmission wavelengths through optical signals.
  • each optical module in the DU is an adjustable transmitting module
  • the dotted frame is an AMCC device, and includes an AWG, a DU AMCC module, and an RRU AMCC module.
  • the DU AMCC module can send the AMCC signal upwards and configure the emission wavelength of each optical module of the DU.
  • the RRU AMCC module can send the AMCC signal downwards and configure the transmit wavelength of the RRU optical module. Both AMCC modules can transmit up or down n-way wavelength signals through a laser array or a tunable laser.
  • the DU AMCC module When configuring the wavelength of a certain signal of the DU, such as the i-th road, the DU AMCC module transmits the i-th uplink AMCC signal to the DU, and the optical signal is first coupled into the trunk fiber, and then comes out from the i-th port of the AWG, and is the i-th of the DU. The optical module corresponding to the road is received. The optical module adjusts the emission wavelength to the wavelength specified by the AMCC.
  • the RRU AMCC module when configuring an RRU transmit wavelength, such as the jth path, the RRU AMCC module sends the jth AMCC message downward.
  • the AMCC signal is first coupled into the trunk fiber, and then passes through the AWG, and enters the RRU from the jth port of the AWG. After the optical module, the RRU adjusts the optical module to the transmission wavelength corresponding to the jth channel.
  • the DU AMCC module can also separate a part of the downlink optical detection DU from the trunk fiber to detect whether the wavelength of the DU is wavelength drift.
  • An AWG can be integrated inside the DU AMCC module to separately monitor the downstream light by n PDs. If the optical power of a certain channel becomes smaller, the wavelength drift of the corresponding channel occurs, and the DU AMCC module sends an AMCC message to the DU, and adjusts the wavelength value to return to the correct position.
  • the RRU AMCC module also has the same wavelength monitoring function.
  • Figure 19 uses two AMCC signal modules to add AMCC information to the backbone fiber and then through the AWG to the optical modules on the DU and RRU. It is also possible to use the structure shown in FIG. 20 to add two AMCC modules to each fiber between the DU and the AWG. Thus, the AMCC module does not need to be multi-wavelength transmitted, and only needs to transmit the wavelength of the corresponding channel.
  • the structure shown in Fig. 21 can be used in the system shown in Fig. 20 to detect whether the uplink and downlink wavelengths drift.
  • the optical fiber of each channel between the DU and the AWG splits a part of the light to detect the optical power by each PD. If the optical power of a certain channel becomes smaller, the wavelength drift of the channel is indicated, and the RRU AMCC module sends the AMCC message downward. Adjust the RRU emission wavelength to maximize the PD receiving optical power.
  • the AWG has a DU AMCC PD, which can detect the optical power of each channel in the downlink. If the optical power of one channel becomes smaller, the DU AMCC module of the corresponding channel adjusts the wavelength of the optical module corresponding to the channel to the correct position.
  • the uplink and downlink wavelengths can be detected by the DU and the RRU optical module itself after the communication link is established.
  • the AMCC message is sent upward to adjust the DU transmission wavelength.
  • the AM sends an AMCC message downward to adjust the RRU transmission wavelength.
  • the DU terminal also uses a tunable optical module.
  • the AMCC device first configures the DU transmission wavelength through the optical signal, and then notifies the DU to configure the RRU emission wavelength.
  • This example is similar to Example 2 except that the emission wavelength of the example 2DU end module is fixed in advance, and this example needs to configure the wavelength of the DU end first.
  • the role of the AMCC module in the example 2 is to activate the AMCC function of the DU optical module, so that the optical module sends an AMCC message.
  • the difference in this example is that the AMCC module has the function of transmitting the wavelength of the DU end by first transmitting the AMCC message in addition to the function of the example 2.
  • the DU terminal also uses a tunable optical module.
  • the AMCC device first configures the RRU transmission wavelength through the optical signal, and then reconfigures the DU emission wavelength through the RRU.
  • Example 3 is similar to Example 3 except that the RRU optical module in this example also has the function of transmitting AMCC messages.
  • the AMCC module has the function of transmitting the AMCC message configuration RRU transmission wavelength in the example 3, and also has the function of activating the RRU optical module AMCC, and can also transmit the AMCC message.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some ports, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage device includes the following steps: the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • ROM read-only memory
  • RAM random access memory
  • magnetic disk or an optical disk.
  • optical disk A medium that can store program code.

Abstract

本申请实施例公开了一种AMCC装置及传输波长调控方法，所述AMCC装置包括：AMCC模块，用于通过预定信息的发送调整所述DU与所述RRU之间的传输波长。

Description

AMCC装置及传输波长调控方法
相关申请的交叉引用
本申请基于申请号为201810350975.5、申请日为2018年04月18日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及通信技术领域但不限于通信技术领域，尤其涉及一种辅助通道管理控制(Auxiliary Management channel control，AMCC)装置及传输波长调控方法。
背景技术
随着第五代(5th Generation，5G)技术的发展，无线基站对带宽和时延的要求不断升高，无线接入领域迎来新的挑战。4G时代，基站到基带单元(Building Base band Unit，BBU)的距离不远，基站到BBU使用铜线或点对点光纤接入。5G每个基站的数据量增加，时延要求降低，分布式单元(Distribution Unit，DU)距离基站更远，因此使用光纤接入是一个好的选择。然而如果使用点对点光纤接入，需要许多长距离主干光纤，会造成资源浪费。使用波分复用技术对每个RRU实现光接入，每个射频拉远单元(Radio Remote Unit，RRU)单独占用一个波长通道，可以实现大带宽，低时延的接入需求，同时可以节约主干光纤。
图1所示为一种波分复用接入的结构框图。DU和RRU之间通过n个波长通道进行通信，n个波长由阵列波导光栅(Arrayed Waveguide Grating，AWG)进行合分波，使得主干光纤仅有一根。图1中DU插有n个光模块 (图1中示例为小型可插拔(small form pluggable，sfp)封装光模块，实际情况也可以是其它形式的封装)，每个光模块对应一对收发波长，RRU插一个光模块，收发波长与DU上的一个光模块对应。
为了实现RRU侧光模块统一，部署灵活，降低成本，RRU侧的光模块需要实现发射可调。但是由于一开始RRU的光模块并不知道被接在AWG的哪个端口上，因此就不知道应该发射哪个通道的波长。为了解决这个问题，同时不占用带内带宽，可以使用辅助通道管理控制技术(Auxiliary Management channel control，AMCC)由DU向RRU发送波长信息。AMCC可以通过顶调制实现，也可以通过其它方式实现。RRU收到AMCC消息后将发射波长调到相应波长。但是这种方法存在两个问题：
一：DU端光模块使用的必须是固定波长，无法是可调波长，因为如果DU端光模块的波长也可调，则一开始DU端也不知道自己被连接到AWG哪一个端口，无法确定发射波长；
二：这种方法需要DU具有AMCC的功能(一些厂家的光模块自带AMCC功能，但是需要设备控制开启该功能)，而实际上不同厂家的DU不一定都具有这种功能；这就导致网络中各种设备混杂，设备管理困难等问题。与此同时，DU设备自身配置有AMCC功能，需要改造DU设备结构，需要引入对应的软硬件资源，且一个DU设备自身的AMCC功能仅可供自身使用，使用率低。
发明内容
有鉴于此，本申请实施例期望提供一种AMCC装置及传输波长调控方法。
本申请的技术方案是这样实现的：
本申请实施例第一方面提供一种辅助通道管理控制AMCC装置，独立于分布式单元DU和射频拉远单元RRU，包括：AMCC模块，配置为通过 预定信息的发送调整所述DU与所述RRU之间的传输波长。
本申请实施例第二方面提供一种传输波长调控方法，包括：
独立于分布式单元DU和射频拉远单元RRU的辅助通道管理控制AMCC装置，根据期望传输波长生成预定信息，
向所述DU和/或RRU发送所述预定信息，其中，所述预定信息用于调整所述DU和所述RRU之间的传输波长。
本申请实施例一种AMCC装置及传输波长调控方法，该AMCC装置可以独立于DU和RRU中设置，能够通过AMCC信号或AMCC消息等预定信息的传输调整DU与RRU之间的传输波长。如此，即便为设置有AMCC功能的DU的传输波长也可以灵活配置，可以根据当前需求或者各波长的负载量，选择传输信息的波长；此外，DU自身不用配置AMCC功能，就无需对现有的DU设备等光网络设备进行改造，与现有技术兼容性强；与此同时，独立于DU和/或RRU设备的AMCC装置，可以用于多个光网络设备所共用，从而有效使用率高等。
附图说明
图1为一种光网络的结构示意图；
图2为本申请实施例提供的第一种AMCC装置、DU及RRU的链接示意图；
图3为本申请实施例提供的第二种AMCC装置、DU及RRU的链接示意图；
图4为本申请实施例提供的第三种AMCC装置、DU及RRU的链接示意图；
图5为本申请实施例提供的第四种AMCC装置、DU及RRU的链接示意图；
图6为本申请实施例提供的第五种AMCC装置、DU及RRU的链接示 意图；
图7为本申请实施例提供的一种传输波长调整方法；
图8为本申请实施例提供的第六种AMCC装置、DU及RRU的链接示意图；
图9为本申请实施例提供的第七种AMCC装置、DU及RRU的链接示意图；
图10为本申请实施例提供的第八种AMCC装置、DU及RRU的链接示意图；
图11为本申请实施例提供的第九种AMCC装置、DU及RRU的链接示意图；
图12为本申请实施例提供的第十种AMCC装置、DU及RRU的链接示意图；
图13为本申请实施例提供的第十一种AMCC装置、DU及RRU的链接示意图；
图14为本申请实施例提供的第十二种AMCC装置、DU及RRU的链接示意图；
图15为本申请实施例提供的第十三种AMCC装置、DU及RRU的链接示意图；
图16为本申请实施例提供的第十四种AMCC装置、DU及RRU的链接示意图；
图17为本申请实施例提供的第十五种AMCC装置、DU及RRU的链接示意图；
图18为本申请实施例提供的第十六种AMCC装置、DU及RRU的链接示意图；
图19为本申请实施例提供的第十七种AMCC装置、DU及RRU的链 接示意图；
图20为本申请实施例提供的第十八种AMCC装置、DU及RRU的链接示意图；
图21为本申请实施例提供的第十九种AMCC装置、DU及RRU的链接示意图。
具体实施方式
以下结合说明书附图及具体实施例对本申请的技术方案做进一步的详细阐述。
如图2所示，本实施例提供一种AMCC装置，独立于DU和RRU，包括：
AMCC模块，配置为通过预定信息的发送调整所述DU与RRU之间的传输波长。
本实施例提供的AMCC装置是一个可独立于DU和RRU的AMCC装置，可包括：壳体，壳体内设置有AMCC模块，所述壳体上可设置有开口，所述AMCC装置的端口可以通过所述开口外露，该AMCC模块通过AMCC装置的端口可以分别与DU或RRU进行连接。例如，该端口可为光纤端口，AMCC装置与DU和/或RRU之间可以通过光纤进行连接。
在一些实施例中所述AMCC装置还包括受控端口，该受控端口可与控制设备连接，可用于接收控制设备发送的控制指示，所述AMCC模块根据所述控制指示向DU和/或RRU传输所述预定信息，来控制DU和RRU之间的传输波长。
在本实施例中，所述AMCC模块，用于根据预定信息的发送来调整DU及RRU之间的传输波长。在本实施例中所述传输波长通常为DU和RRU之间的光信号的光波长。在本实施例中，调整DU与RRU之间传输波长可包括以下至少之一：
指示传输波长从第一波长切换到第二波长，实现传输波长的切换；
若检测到实际传输波长并非期望传输波长时，指示校正传输波长；例如，指示校正传输波长的方式又可以有多种：直接仅向DU和/或RRU发送校正指令，DU和/或RRU接收到校正指令之后，根据自身存储的期望传输波长进行校正，在校正的过程中可能需要自动确定调整量等调整参数。在另一些实施例中，由于AMCC模块预先检测DU和RRU之间的传输波长与期望传输波长之差，就知道了调整量等调整参数，故所述AMCC模块可以向DU和/或RRU单独发送调整参数，或同时发送调整指令和调整参数。DU和/或RRU接收到AMCC模块发送的调整信息之后，就进行传输波长的调整。这里的调整信息包括：调整指令及调整参数的至少其中之一。
例如，所述AMCC装置可为设置DU侧的AMCC装置，所述AMCC装置中的AMCC模块可以通过在DU与RRU之间传输的信号上加入与所述预定信息对应的AMCC信号或AMCC消息等，控制DU与RRU之间的传输波长的调整，例如，调整RRU向DU发送光信号的光波长，和/或，调整DU向RRU发送光信号的光波长；如此，AMCC装置可以使得DU也具有调整传输波长的功能。
本实施例中提供了一种独立于DU和RRU的AMCC装置，如此即便已经设置的DU和/或RRU设备自身未配置有进行传输波长调整的AMCC结构，也可以引入这种独立的AMCC装置进行传输波长的动态切换和/或动态校正，确保传输波长的灵活部署及调整成本的降低；此外，该AMCC装置还具有与现有技术的兼容性强的特点。
例如，所述AMCC模块可以在DU和RRU传输的光信号中增加指示调整波长。
在一些实施例中，如图2所示，所述AMCC装置还可包括：
第一AWG，与所述AMCC模块连接，配置为将多路光信号耦合到一 路发射信号，和/或，将一路接收信号解耦成多路接收信号传输给所述DU或RRU。
在本实施例中所述AMCC装置还包括第一AWG，该AWG与AMCC模块连接，若AMCC装置位于DU侧，则还可用于与DU连接；若AMCC装置位于RRU侧，则还可用于与RRU连接。例如，所述第一AWG主要用于将DU或RRU的多路光信号耦合成路由发射信号，该发射信号为多路光信号的复合信号，可在DU和RRU之间的主光纤上传输，或者，是将从主光纤上接收的一路接收信号拆成多路发送给DU内不同端口的光信号。在本实施例中所述一路接收信号同样为复合信号。在本实施例中所述DU内的端口可为spf的端口，可以用于发射及接收光信号。
在一些实施例中，所述第一AWG可一端与DU连接，另一端与所述AMCC模块连接，即所述第一AMG位于所述DU及所述AMCC模块之间；在另一些实施例中，也可以是所述AMCC模块位于所述DU和所述第一AWG之间；所述第一AWG通过所述AMCC模块与所述DU连接。在图2中第一AWG和第二AWG都属于AWG，可以用于将多路光信号耦合成一路光信号，也可以将一路光信号解耦拆分成多路光信号。
在另一些实施例中，所述AMCC模块，包括：
AMCC信号模块，配置为产生指示传输波长的AMCC信号。
在本实施中所述AMCC模块包括AMCC信号模块，该AMCC信号模块直接就产生AMCC信号，此时，这里的AMCC信号可为可以直接通过光纤传输的光信号的一种，可直接用于发送给DU和/或RRU进行传输波长的切换和/或校正。
例如，所述AMCC信号模块，配置为通过顶调制所述DU和/或RRU发送的已调制信号，形成所述AMCC信号。在本实施例中通过顶调制可以不用占用DU和RRU之间的额外的传输带宽，就可以产生所述AMCC信 号。所述顶调制可包括：在DU和RRU之前传输的已调制信号上，在根据需要传输的调整信息，进行已调制信号的幅度再次调制，使得已调制信号不仅携带DU和RRU之间需要传输的预定数据，还携带所述调整信息。例如，在已调制信号上加上预设比例值的幅度，DU和/或RRU在接收到通过顶调制的光信号之后，若检测到光信号的幅度值满足预设条件，例如，在某几个波长内的幅度值大于预设的最大幅度值，可认为该光信号不仅携带有DU和RRU治安的预定数据，还携带有调整信息，解码该光信号时，基于该预设比例值进行光信号的拆分，解调出进入到AMCC信号模块之间的已调信号，从而可以解调出预定数据，并根据接收到光信号和进入到AMCC信号模块之间的已调信号之间的差异，可以解调出所述调整信息，进而可以根据所述调整信息进行DU及RRU之间的传输波长的调整。
在上述实施例中，AMCC模块通过顶调制的方式在不额外占用DU和RRU之间的带宽的情况下，完成了AMCC信号的传输。在另一些实施例中，DU和RRU之间为了实现信号同步可能会在传输数据时设置固定的初始相位进行同步，在本实施例中可以AMCC模块可以改变固定的初始相位，从而通过相位再调制，也可以实现不额外占用带宽的情况下进行AMCC信号的传输。例如，若仅传输预定数据的已调信号中携带有同步信号，该同步信号的初始相位为第一相位，在本实施例中AMCC模块可以改变部分同步信号的相位(例如，改变同步信号的载波的初始相位)，改变的相位的多少与需要传输的调整信息相适配，若DU接收到同步信号中有部分的初始相位发生了变化，可认为该部分变化的同步信号实质上是AMCC信号。
在一些实施例中，所述AMCC模块，包括：
AMCC消息模块，配置为产生AMCC消息，其中，所述AMCC消息，用于供所述DU和/或所述RRU形成并发送与所述AMCC消息对应的AMCC信号，其中，所述AMCC信号，用于控制所述DU和所述RRU之 间的传输波长。
在本实施例中，所述AMCC模块本身并不直接产生AMCC信号，而是形成AMCC消息，该AMCC消息传输给DU或RRU，由DU或RRU根据AMCC消息形成AMCC信号，这样在DU和RRU在传输预定数据的光信号的同时，传输AMCC信号。
在一些实施例中，所述AMCC模块包括：DU AMCC模块，配置为调整所述DU的发射波长；和/或，RRU AMCC模块，配置为调整所述RRU的发射波长。
在本实施例中所述DU连接的AMCC模块，以及与RRU连接的AMCC模块。在本实施例中DU AMCC模块用于调整DU的发射波长，而RRU AMCC模块用于调整RRU的发射波长。利用不同的AMCC模块分别调整DU和RRU的发射波长，可以实现DU和RRU的分别独立控制。
如图20中DU AMCC模块及RRU AMCC模块位于同一个AMCC装置，该AMCC装置可安装在DU侧，当AMCC装置安装在DU侧时，AMCC装置与DU之间的距离，一般较AMCC装置与RRU之间的距离更近。
如图3所示，所述AMCC模块，包括：
共用AMCC模块，通过所述第一AWG与所述DU或RRU连接，配置为形成AMCC信号或AMCC消息；所述AMCC信号，为基于所述AMCC消息形成的且用于控制传输波长。
在本实施例中，所述共用AMCC模块可被DU或RRU的多个端口所共用。例如，第一AWG连接在共用AMCC模块及DU之间，DU的多个端口与第一AWG的一端的多个端口连接，第一AWG的另一端的一个端口连接有所述AMCC模块，该共用AMCC模块可用于DU上至少两个端口的传输波长的调整，例如，可用于一个DU上所有端口的传输波长的调整。
在一些实施例中，如图4所示，所述AMCC模块，包括：
独立AMCC模块，位于所述DU和所述第一AWG之间，配置为形成与所述DU的端口对应的AMCC信号或AMCC消息；所述AMCC信号，为基于所述AMCC消息形成的且用于控制所述传输波长。
在本实施例中AMCC模块为独立AMCC模块，一个所述独立AMCC模块用于DU上一个端口的传输波长。一般此时，若DU有N个端口，若每一个端口的传输波长都可调，则所述AMCC装置必须设置不少于N个独立AMCC模块。独立AMCC模块是连接在DU的端口与第一AWG之间的。
在一些实施例中，如图5及图6所示，所述AMCC装置还包括：
光探测模块，配置为检测所述RRU的传输波长；
所述AMCC模块，与所述光探测模块连接，配置为根据所述光探测模块检测的当前传输波长，生成调整所述传输波长的预定信息。
在本实施例中所述光探测模块可为各种能够检测RRU中当前传输波长的器件，例如，光探测器(Optical Detector，PD)，PD可以检测对应波长的光信号功率，若某一个光信号的功率低于期望传输波长的预定功率值，可认为传输波长进行了偏移，或者低于特定功率值，可认为当前传输波长并非预定波长。
所述光探测模块可以作为所述AMCC装置的组成部分，可以位于所述AMCC装置位于同一个壳体内。光探测模块也可以是与AMCC模块分离设置的，在使用时光探测模块可通过导线与AMCC模块连接。
在一些实施例中，如图6所示，所述光探测模块包括：
独立光探测模块，配置为检测DU或RRU的一个端口的传输波长，通常位于DU的一个端口与AWG之间，例如，位于所述DU与RRU的配对的一组端口形成的分支传输路径上，配置为探测所述分支传输路径上的传输波长。
在本实施例中的独立光探测模块为连接到DU与RRU的一对端口的分 支传输路径上，即一个独立的光探测模块，配置为一对传输端口的传输波长的探测。
在还有一些实施例中，如图5所示，所述光探测模块可包括：
共用光探测模块，配置为检测所述DU或RRU的至少两个端口的传输波长。
共用光探测模块，可以用于DU和RRU的主传输路径上，可以用于DU和RRU多对传输端口的传输波长的探测。主传输路径通常为两个AWG之间的传输路径，主传输路径传输的并非单一波长的光信号，通常是多种波长的光信号。
在本实施例中，通常DU和RRU均通过AWG将多个端口耦合成一个总端口，主传输路径为DU和RRU的总端口之间传输路径。分支传输路径可为总端口与DU的单一端口或RRU的单一端口之间的传输路径。总之，通过AWG可以将DU内的多个分支传输路径汇总形成所述主传输路径；和/或，通过AWG可以将RRU内的多个分支传输路径汇总形成所述主传输路径。
如图7所示，本实施例提供一种传输波长调控方法，包括：
步骤S110：独立于DU和RRU的AMCC装置，根据期望传输波长生成预定信息；
步骤S120：向所述DU和/或RRU发送所述预定信息，其中，所述预定信息用于调整所述DU和所述RRU之间的传输波长。
在本实施例中可以采用前述实施例中提供的AMCC装置，该AMCC装置可以用于自身不能配置有AMCC功能或未设置有对应的AMCC硬件的DU和/或RRU的传输波长的切换和/或校正，具有实现简便、实现成本低及与相关技术兼容性强，可以灵活配置所述DU和RRU之间的传输波长的特点。
在一些实施例中，所述步骤S120可包括：向所述DU和/或RRU发送指示传输波长的AMCC信号。
在本实施例中所述预定信息直接为AMCC信号，是由所述AMCC装置内的AMCC模块自动形成的AMCC信号，在本实施例中所述AMCC信号可以直接在DU和RRU之间传输的光信号的一种。
在一些实施例中所述DU和RRU之前可以设置专门的传输所述AMCC信号的专用带宽，也可以复用DU和RRU之前的传输预定数据的带宽。
在一些实施例中，所述方法包括：
接收所述DU和/或RRU发送的已调制信号；
根据所述预定信息，对所述已调制信号进行顶调制并生成所述AMCC信号。
在本实施例中为了不占用额外带宽进行AMCC信号的传输，在DU和/或RRU发送的已调制信号的基础上通过顶调制等方式进行再次调整，可以产生一个复合光信号，同时携带有DU和RRU之前传输的预定数据，还携带有调整传输波长的预定信息。
在一些实施例中，所述步骤S120可包括：
向所述DU和/或RRU发送AMCC消息，其中，所述AMCC消息，用于供所述DU和/或所述RRU形成并发送与所述AMCC消息对应的AMCC信号，其中，所述AMCC信号，用于控制所述DU和所述RRU之间的传输波长。
在本实施例中所述AMCC装置是仅向DU和/或RRU发送AMCC消息，由DU和/或RRU基于AMCC消息形成对应的AMCC信号，再直接在DU和RRU之间发送传输波长。
在一些实施例中，所述方法还包括：探测所述DU和所述RRU之间的当前传输波长；
所述步骤S110可包括：所述AMCC装置根据所述当前传输波长及所述期望传输波长生成所述预定信息。
在本申请实施例中，可以利用PD等光探测模块探测DU和RRU之间的当前传输波长，例如，当前传输波长并非是期望传输波长，则可以通过AMCC信号或AMCC消息的发送，促使DU和RRU之间调整传输波长。
本申请实施例提出一种AMCC装置，放在DU侧，通过在信号中加入AMCC消息，或者额外加入信号控制光模块的AMCC功能，来管理DU和RRU的发射波长。该AMCC装置可用于不具有控制光模块AMCC功能的DU，并且DU端也可以使用可调光模块，以下结合上述任意实施例提供几个具体示例，在以下示例中，从DU到RRU的传输方向称为下行，从RRU到DU的传输方向称为上行。
示例1：
DU端光模块采用固定波长，AMCC装置通过再次调制每路DU发射信号，在信号带宽外加入AMCC通道管理消息，管理RRU发射波长。
如图8，虚线框中为本示例提出的AMCC装置，包含AMCC模块和AWG。DU的一个通道的信号经过AMCC模块后，被再次调制，加入AMCC消息，这个消息不在通信带宽以内，因此不占用通信带宽。
AMCC模块可以使用可调光衰减器(Variable Optical Attenuator，VOA)来实现，在已调制的光信号上加上幅度不大于10％的顶调制，也可以通过其它方式实现。连接至AWG的某一个端口的RRU接收这个信号，解调出AMCC消息，将自身发射波长调整至AMCC消息指定波长，向DU发射信号，实现DU和RRU之间的通信。
同时AMCC模块可以实时监测每个通道上行由RRU发射的光信号通过AWG后的光功率，如果RRU发射光波长发生偏移，则信号光经过AWG后光功率会减弱，此时AMCC模块再次在下行信号光中加入AMCC消息， 控制RRU上行发射光波长回到正确波长。
示例2：
DU端采用固定波长，AMCC装置使用额外的光信号控制DU的光模块向RRU发送AMCC通道管理消息，管理RRU发射波长。
虚线框中为本示例的AMCC装置，包含AMCC模块和AWG，如图9，AMCC模块中可以发射上行所有n路信号光波长，也可发射可通过AWG各个端口的非上行光波段的n个波长。
该包括AMCC模块可以用阵列激光器实现，也可以使用可调激光器实现，也可通过其它方式实现。
AMCC装置需要配置某一路通道时，比如第i路，则AMCC模块向DU发射第i路上行光信号，这个光信号首先耦合入主干光纤，然后从AWG第i个端口出来，由DU的第i路对应的光模块接收。该光信号通知DU的第i路光模块开启AMCC功能，并向下发送AMCC消息，这可以通过写入修改控制光模块寄存器值实现，也可以通过其它方式实现。
RRU接收到来自DU的AMCC消息后，将自身发射波长调到相应通道，从而与DU建立通信链路。这种方法利用DU内光模块自身的AMCC功能，AMCC模块本身不产生AMCC消息，只是通知DU端光模块发送AMCC消息。
在AMCC装置中AWG与DU连接的每个端口分出一部分光监控上行光功率，可以达到监控RRU发射波长的目的。如果某个RRU发射波长有偏移，则相应的光探测器(Photo Detector，PD)接收光功率会变小，PD将这个消息传给AMCC模块，AMCC模块控制相应通道的DU光模块向下发送AMCC消息，调节RRU发射波长，使该路PD值达到最大，RRU发射正确波长光信号。
图9使用一个AMCC模块将控制光模块的信息加入主干光纤然后经过 AWG到达DU上的光模块。也可以采用图11所示的结构，在AWG后每一路光纤上加入一个AMCC模块，如此，AMCC模块不需要是多波长发射的，只需要发射对应通道的波长即可，如果DU光模块接收是广谱的，每个AMCC发射的波长可以是一致的。
如图10及图12所示，在AMCC装置中AWG与DU连接的每个端口分出一部分光监控上行光功率，可以达到监控RRU发射波长的目的。如果某个RRU发射波长有偏移，则相应的光探测器(PD)接收光功率会变小，PD将这个消息传给AMCC模块，AMCC模块控制相应通道的DU光模块向下发送AMCC消息，调节RRU发射波长，使该路PD值达到最大，RRU发射正确波长光信号。在图12中PD包括PD1至PDn，具体实现时PD的个数可根据PD的类型及独立AMCC模块的个数来确定。图12中所示的PD为独立光探测模块的一种；图12所示的AMCC模块可为独立AMCC模块的一种。
示例3：
在本示例中，DU端采用固定波长，AMCC装置使用额外的光信号给RRU提供AMCC通道信息。
在图13中虚线框内为本示例提出的AMCC装置，包含AMCC模块和AWG，AMCC模块可以发射下行所有n路信号光波长，也可发射可通过AWG各个端口的非下行波段的波长。该AMCC模块可以用阵列激光器实现，也可以使用可调激光器实现。
需要管理某一路通道，比如第i路时，AMCC模块向下发送第i路AMCC消息，AMCC信号首先耦合进入主干光纤，再经过AWG，由AWG的第i个端口进入RRU的光模块，RRU接收此信号后将光模块调整到第i路对应的发射波长。
如同图10及图14中AMCC装置中AWG与DU连接的每个端口分出 一部分光监控上行光功率，可以达到监控RRU发射波长的目的。如果某个RRU发射波长有偏移，则相应的光探测器(PD)接收光功率会变小，PD将这个消息传给AMCC模块，AMCC模块向下发送AMCC消息，调节RRU发射波长，使该路PD值达到最大，RRU发射正确波长光信号。
图13使用一个AMCC模块将AMCC消息加入主干光纤然后经过AWG到达RRU上的光模块。也可以采用图15所示的结构，在DU与AWG之间每一路光纤上加入一个AMCC模块，如此，AMCC模块不需要是多波长发射的，只需要发射对应通道的波长即可。
如同图14及图16所示，在AMCC装置中AWG与DU连接的每个端口分出一部分光监控上行光功率，可以达到监控RRU发射波长的目的。如果某个RRU发射波长有偏移，则相应的光探测器(PD)接收光功率会变小，PD将这个消息传给AMCC模块，AMCC模块向下发送AMCC消息，调节RRU发射波长，使该路PD值达到最大，RRU发射正确波长光信号。
示例4：
DU端也采用可调光模块，AMCC装置先配DU发射波长，再通过再调制DU下行信号加入AMCC消息配RRU发射波长。
如图17所示，DU的AMCC模块可以发射所有通过AWG端口波长的光，可以是上行信号光波段，也可以不是上行信号光波段。AMCC模块可以是激光器阵列，也可以是可调激光器。DU的AMCC模块首先配DU各个光模块的发射波长，配置完毕后，DU发射下行光，AMCC模块再次调制各个下行光，加入AMCC消息，配置RRU的发射波长。
DU AMCC模块除了可以给DU光模块发送光信号配置波长，还可以在主干光纤分出一部分下行光监测DU的各个通道是否发生波长漂移。DU AMCC模块内部可以集成一个AWG，将下行光分开由n个PD分别监测。若某一路光功率变小，则说明相应通道发生波长漂移，DU AMCC模块向 DU发送AMCC消息，调节那一路波长值回到正确位置。
下行信号光波长监测还可以通过RRU光模块来实现，RRU光模块监测接收光功率，如果接收光功率变小，则该路下行光发生波长漂移。RRU光模块向上发送AMCC消息，调节DU端光模块波长回到正确位置。
图18中AMCC装置中AWG与DU连接的每个端口分出一部分光监控上行光功率，可以达到监控RRU发射波长的目的。如果某个RRU发射波长有偏移，则相应的光探测器(PD)接收光功率会变小，PD将这个消息传给AMCC模块，AMCC模块将调节信息加入下行信号中，调节RRU发射波长，使该路PD值达到最大，RRU发射正确波长光信号。
示例5：
DU端也采用可调光模块，AMCC装置通过光信号分别配置DU和RRU发射波长。
如图19所示，DU中各个光模块均为可调发射模块，虚线框中为AMCC装置，包含AWG，DU AMCC模块，RRU AMCC模块。DU AMCC模块可以向上发送AMCC信号，配置DU的各个光模块的发射波长。RRU AMCC模块可以向下发送AMCC信号，配置RRU光模块的发射波长。两种AMCC模块都可以通过激光器阵列或可调激光器实现向上或向下的n路波长信号发射。
配置DU某一路信号波长时，比如第i路，则DU AMCC模块向DU发射第i路上行AMCC信号，这个光信号首先耦合入主干光纤，然后从AWG第i个端口出来，由DU的第i路对应的光模块接收。该光模块将发射波长调到AMCC指定的波长。
同理，配置某个RRU发射波长时，比如第j路时，RRU AMCC模块向下发送第j路AMCC消息，AMCC信号首先耦合进入主干光纤，再经过AWG，由AWG的第j个端口进入RRU光模块，RRU此信号后将光模块调 整到第j路对应的发射波长。
DU AMCC模块除了可以给DU光模块发送光信号配置波长，还可以在主干光纤分出一部分下行光检测DU的各个通道是否发生波长漂移。DU AMCC模块内部可以集成一个AWG，将下行光分开由n个PD分别监测。若某一路光功率变小，则说明相应通道发生波长漂移，DU AMCC模块向DU发送AMCC消息，调节那一路波长值回到正确位置。同理，RRU AMCC模块也具有相同的波长监测功能。图19使用两个AMCC信号模块将AMCC的信息加入主干光纤然后经过AWG到达DU和RRU上的光模块。也可以采用图20所示的结构，在DU和AWG之间每一路光纤上加入两个AMCC模块，如此，AMCC模块不需要是多波长发射的，只需要发射对应通道的波长即可。
图21所示结构可用于图20所示系统检测上下行波长是否漂移。对于上行，DU和AWG之间每个通道的光纤分出一部分光来由各个PD检测光功率，如果某一路光功率变小，则表明这一通道发生波长漂移，RRU AMCC模块向下发送AMCC消息，调节RRU发射波长，使PD接收光功率最大。对于下行，AWG之后有一个DU AMCC PD，可以检测下行各个通道的光功率，如果某一个通道光功率变小，则相应通道的DU AMCC模块调节DU对应通道光模块波长到正确位置。
DU和RRU都具有AMCC功能的条件下，当通信链路建立好以后，可以通过DU和RRU光模块自身来检测上下行波长。对于下行，当RRU检测到接收光功率变小以后，向上发送AMCC消息，调节DU发射波长；对于上行，DU检测到接收光功率变小以后，向下发送AMCC消息，调节RRU发射波长。
示例6：
DU端也采用可调光模块，AMCC装置通过光信号先配置DU发射波长， 然后通知DU再配置RRU发射波长
本示例与示例2类似，不同之处在于示例2DU端模块发射波长是事先固定好的，而本示例需要先将DU端波长配置好。示例2中AMCC模块的作用是激活DU光模块的AMCC功能，使光模块发送AMCC消息。而本示例不同之处在于AMCC模块除了具有示例2的功能，还具有首先发送AMCC消息配置DU端发射波长的功能。
示例7：
DU端也采用可调光模块，AMCC装置通过光信号先配置RRU发射波长，然后通过RRU再配置DU发射波长
本示例与示例3类似，不同之处在于本示例中RRU光模块也具有发射AMCC消息的功能。本示例中AMCC模块除了具有示例3中发送AMCC消息配置RRU发射波长的功能，还具有激活RRU光模块AMCC的功能，同时可以发送AMCC消息。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些端口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本申请各实施例中的各功能单元可以全部集成在一个处理模块中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种辅助通道管理控制AMCC装置，独立于分布式单元DU和射频拉远单元RRU，包括：
    AMCC模块，配置为通过预定信息的发送调整所述DU与所述RRU之间的传输波长。
  2. 根据权利要求1所述的AMCC装置，其中，还包括：
    第一阵列波导光栅，与所述AMCC模块连接，配置为将多路光信号耦合到一路发射信号，和/或，将一路接收信号解耦成多路接收信号传输给所述DU或RRU。
  3. 根据权利要求1所述的装置，其中，
    所述AMCC模块，包括：
    AMCC信号模块，配置为产生指示传输波长的AMCC信号。
  4. 根据权利要求2所述的装置，其中，
    所述AMCC信号模块，配置为通过顶调制所述DU和/或RRU发送的已调制信号，形成所述AMCC信号。
  5. 根据权利要求1所述的装置，其中，
    所述AMCC模块，包括：
    AMCC消息模块，配置为产生AMCC消息，其中，所述AMCC消息，用于供所述DU和/或所述RRU形成并发送与所述AMCC消息对应的AMCC信号，其中，所述AMCC信号，用于控制所述DU和所述RRU之间的传输波长。
  6. 根据权利要求1所述的装置，其中，
    所述AMCC模块包括：
    DU AMCC模块，配置为调整所述DU的发射波长；
    和/或，
    RRU AMCC模块，配置为调整所述RRU的发射波长。
  7. 根据权利要求2至6任一项所述的装置，其中，
    所述AMCC模块，包括：
    共用AMCC模块，通过第一阵列波导光栅与所述DU或RRU连接，用于形成AMCC信号或AMCC消息；所述AMCC信号，为基于所述AMCC消息形成的且用于控制传输波长。
  8. 根据权利要求2至6任一项所述的装置，其中，
    所述AMCC模块，包括
    独立AMCC模块，位于所述DU和第一阵列波导光栅之间或位于所述RRU和所述第一阵列波导光栅之间，用于形成AMCC信号或AMCC消息；所述AMCC信号，为基于所述AMCC消息形成的且用于控制所述传输波长。
  9. 根据权利要求1所述的装置，其中，所述AMCC装置还包括：
    光探测模块，配置为检测所述RRU的传输波长；
    所述AMCC模块，与所述光探测模块连接，用于根据所述光探测模块检测的当前传输波长，生成调整所述传输波长的预定信息。
  10. 根据权利要求9所述的装置，其中，
    所述光探测模块包括：
    独立光探测模块，配置为探测所述DU和/或RRU一个端口的传输波长；
    和/或，
    共用光探测模块，配置为检测所述DU或RRU的至少两个端口的传输波长。
  11. 一种传输波长调控方法，包括：
    独立于分布式单元DU和射频拉远单元RRU的辅助通道管理控制AMCC装置，根据期望传输波长生成预定信息，
    向所述DU和/或RRU发送所述预定信息，其中，所述预定信息用于调整所述DU和所述RRU之间的传输波长。
  12. 根据权利要求11所述的方法，其中，
    所述向所述DU和/或RRU发送所述预定信息，包括：
    向所述DU和/或RRU发送指示传输波长的AMCC信号。
  13. 根据权利要求12所述的方法，其中，
    所述方法包括：
    接收所述DU和/或RRU发送的已调制信号；
    根据所述预定信息，对所述已调制信号进行顶调制并生成所述AMCC信号。
  14. 根据权利要求11所述的方法，其中，
    所述向所述DU和/或RRU发送所述预定信息，包括：
    向所述DU和/或RRU发送AMCC消息，其中，所述AMCC消息，用于供所述DU和/或所述RRU形成并发送与所述AMCC消息对应的AMCC信号，其中，所述AMCC信号，用于控制所述DU和所述RRU之间的传输波长。
  15. 根据权利要求11所述的方法，其中，
    所述方法还包括：
    探测所述DU和所述RRU之间的当前传输波长；
    所述独立于分布式单元DU和射频拉远单元RRU的辅助通道管理控制AMCC装置，根据期望传输波长生成预定信息，包括：
    所述AMCC装置根据所述当前传输波长及所述期望传输波长生成所述预定信息。
PCT/CN2019/081473 2018-04-18 2019-04-04 Amcc装置及传输波长调控方法 WO2019201100A1 (zh)

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