WO2016165111A1 - 一种分插复用器和分插复用器中信号处理的方法 - Google Patents

一种分插复用器和分插复用器中信号处理的方法 Download PDF

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Publication number
WO2016165111A1
WO2016165111A1 PCT/CN2015/076781 CN2015076781W WO2016165111A1 WO 2016165111 A1 WO2016165111 A1 WO 2016165111A1 CN 2015076781 W CN2015076781 W CN 2015076781W WO 2016165111 A1 WO2016165111 A1 WO 2016165111A1
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WIPO (PCT)
Prior art keywords
board
signal
interface
line
link
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PCT/CN2015/076781
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English (en)
French (fr)
Inventor
向晖
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP15888816.4A priority Critical patent/EP3249834B1/en
Priority to PCT/CN2015/076781 priority patent/WO2016165111A1/zh
Priority to CN201580020837.5A priority patent/CN106258014B/zh
Publication of WO2016165111A1 publication Critical patent/WO2016165111A1/zh
Priority to US15/782,745 priority patent/US10097305B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
    • 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
    • H04J14/0215—Architecture aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J7/00—Multiplex systems in which the amplitudes or durations of the signals in individual channels are characteristic of those channels
    • 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
    • H04Q11/0071—Provisions for the electrical-optical layer interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements
    • 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
    • H04Q2011/0088—Signalling aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13003—Constructional details of switching devices

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for signal processing in an add/drop multiplexer and an add/drop multiplexer.
  • ADM Add/Drop Multiplexer
  • OADM Optical Add/Drop Multiplexer
  • EDM Electric Add/Drop Multiplexer
  • the transmission network is usually bidirectional, as shown in Figure 1.
  • the service P26 between the node N2 and the node N6 is bidirectional communication information, which is up and down through the ADM of the respective node, and passes through the ADM of the node N1.
  • the service P36 between the node N3 and the node N6 is bidirectional communication information, and is up and down through the ADM of the respective node, and penetrates the ADM of the nodes N4 and N5.
  • the ADM usually includes a line card 201, a switch card 202, a line board 203, and a Tribute Card 204. Each board is a separate board, which is easy to maintain.
  • the boards are interconnected through the inter-board interface.
  • the signal on the eastbound link is input to the line card 201.
  • the signal is forwarded to the cross-board 202 through the inter-board interface 1 and then down to the line board 203 through the inter-board interface 2, and then output to the eastbound link.
  • the signal on the westbound link is input to the circuit board 203.
  • the signal is transmitted to the cross-board 202 through the inter-board interface 2, and then down to the circuit board 201 through the inter-board interface 1.
  • the output is output to the westbound link.
  • the cross-board 202 receives the input signal of the east link from the line board 201 through the inter-board interface 1, or receives the input signal of the west-link from the line board 203 through the inter-board interface 2, and the downlink service of the node is from the east. Extracted from the signal flow of the link and/or the westbound link, processed by the merge/selector, and then sent to the branch board 204 through the inter-board interface 3, and transmitted to the client side device; the cross-board 202 passes through the inter-board The interface 3 receives the uplink service of the node from the tributary board 204.
  • the uplink service of the node is processed by the copy/distributor and inserted into the signal flow of the eastbound link and/or the westbound link, and enters through the inter-board interface 2.
  • the circuit board 203 enters the line board 201 through the inter-board interface 1 to form an output signal of the east/west link.
  • the ADM link bandwidth processing capability is limited to the line list.
  • the ADM link bandwidth processing capability is limited to the line list.
  • the ADM link between the line card and the cross-board is the interface between the board and the cross-board.
  • the bandwidth of the interface between the board and the cross-board is not more than the bandwidth of the interface between the board and the cross-board.
  • the embodiments of the present invention provide a method for signal processing in an add/drop multiplexer and an add/drop multiplexer, which can solve the problem that the link bandwidth processing capability of the ADM is limited by the bandwidth of the interface between the boards.
  • an embodiment of the present invention provides an add/drop multiplexer, where the add/drop multiplexer includes: a first line card and a tributary board, and the first line board includes at least a first interface And the second interface, the first interface is disposed between the branch board and the first line board, and the second interface is disposed on a network side of the first line board; a line card for receiving a first signal from the first link and passing the first signal
  • the second interface is configured to receive the second signal from the first link, and output the second signal to the tributary board through the first interface
  • the first line board is further configured to receive a third signal from the tributary board through the first interface, and input the third signal into the first link.
  • the add/drop multiplexer further includes: a second circuit board, where the second circuit board includes at least a third interface and a fourth interface, the third interface is disposed between the branch circuit board and the second circuit board, and the fourth interface is disposed on a network side of the second circuit board;
  • the line board is configured to receive a fourth signal from the second link, and output the fourth signal through the fourth interface;
  • the second line board is further configured to receive the fifth line from the second link Signaling, and outputting the fifth signal to the tributary board through the third interface;
  • the second line board is further configured to receive, by the third interface, a slab from the tributary And a sixth signal, and the sixth signal is input to the second link.
  • the tributary board is disposed on the first circuit board and the second The two sides of the circuit board are disposed on the same side of the first circuit board and the second circuit board.
  • the tributary board further includes a merge selector and a replication distribution
  • the tributary board is configured to receive the second signal from the first line card, and generate a downlink service to the client device by using the merge selector; the tributary board is further configured to receive from the The uplink service of the client device is distributed through the copy
  • the third signal is input to the first circuit board.
  • the add/drop multiplexer further includes: a third line list a board, the third line board is integrated with a merge selector and a copy distributor of the branch board, the third board includes at least a fifth interface and a sixth interface, and the fifth interface is disposed on the board Between the first line board and the third line board, the sixth interface is disposed on a network side of the third line board; and the third line board is used to be from a third link Receiving a seventh signal, and outputting the seventh signal through the sixth interface; the third line card is further configured to receive an eighth signal from the third link, and pass the eighth signal The copying distributor is outputted to the first circuit board through the fifth interface; the third circuit board is further configured to receive, by the fifth interface, a first slave board Nine signals and inputting the ninth signal to the third through the merge selector Path.
  • an embodiment of the present invention provides a method for signal processing in an add/drop multiplexer, the method comprising: a first line card receiving a first signal from a first link, and the first signal Outputting through the second interface, the second interface is disposed on a network side of the first line card; the first line board receives a second signal from the first link, and the second signal The first interface is disposed between the branch board and the first line board; the first line board passes the first The interface receives a third signal from the tributary board and inputs the third signal into the first link.
  • the method receives the fourth signal from the second link, and outputs the fourth signal through the fourth interface, where the fourth interface is disposed on the network side of the second circuit board;
  • the second line board receives the fifth signal from the second link, and outputs the fifth signal to the branch board through the third interface, where the third interface is disposed on the branch line Between the board and the second line board; the second line board receives a sixth signal from the branch board through the third interface, and inputs the sixth signal to the In the second link.
  • the tributary board receives the second signal from the first line card Generating a downlink service to the client device by using the merge selector on the tributary board; the tributary board receives the uplink service from the client device, and generates the packet through the replication distributor on the tributary board.
  • the third signal is input to the first circuit board.
  • the method further includes: the third circuit board from the third The link receives the seventh signal, and the seventh signal is outputted through the sixth interface, where the sixth interface is disposed on the network side of the third circuit board; the third circuit board is also used to The third link receives the eighth signal, and the eighth signal is output to the first line board through the fifth interface, and the fifth interface is set to the first Between the line board and the third line board; the third line board is further configured to receive a ninth signal from the first line board through the fifth interface, and the ninth A signal is input to the third link through the merge selector.
  • the line board is configured to receive the link signal, and the link signal is transmitted through the line board, and the inter-board interface exists between the line board and the branch board or between different line boards.
  • the downlink service extracted by the line board is output from the inter-board interface, and the inserted uplink service is input from the inter-board interface.
  • the inter-board interface on the link is effectively eliminated, which reduces the complexity, power consumption, and cost of the ADM.
  • the link bandwidth processing capability of the device is configured to receive the link signal, and the link signal is transmitted through the line board, and the inter-board interface exists between the line board and the branch board or between different line boards.
  • the downlink service extracted by the line board is output from the inter-board interface, and the inserted uplink service is input from the inter-board interface.
  • the inter-board interface on the link is effectively eliminated, which reduces the complexity, power consumption, and cost of the ADM.
  • the link bandwidth processing capability of the device is configured to receive the link signal, and the link signal is transmitted through the line board,
  • FIG. 1 is a structural diagram of a prior art transmission network system
  • FIG. 2 is a schematic structural diagram of a prior art add/drop multiplexer
  • FIG. 3a is a schematic structural view of an ADM embodying the present invention.
  • FIG. 3b is a schematic structural view of another ADM embodying the present invention.
  • FIG. 4 is a schematic structural view of still another ADM embodying the present invention.
  • Figure 5 is an exemplary flow chart of a signal processing method in an add/drop multiplexer embodying the present invention.
  • FIG. 3a is a schematic structural diagram of an ADM according to an embodiment of the invention.
  • the ADM of this embodiment exists in one node on the transport network.
  • the ADM includes a first line board 301, a second line board 302, and a branch board 303.
  • the first circuit board 301 and the second line board 302 may have a standby board. Therefore, the ADM may include at least one first line board 301 and at least one second line board 302.
  • At least one merge/selector and at least one distributor/multiplexer are provided on the branch board.
  • the merge/selector and copy/distributor can be optical/electrical switches. As shown in FIG.
  • the tributary board 303 is disposed on different sides of the first line board 301 and the second line board 302, and is interconnected with the first line board 301 through the board interface 4, and the tributary board 303 passes.
  • the inter-board interface 5 and the second line veneer 302 are interconnected.
  • the tributary board 303 can also be disposed on the same side of the first line board 301 and the second line board 302, and pass through the board interface 6 and the first line 301 board.
  • the second circuit boards 302 are interconnected.
  • the first line board 301 receives the input signal of the east link, and the downlink service of the node is extracted from the signal stream of the east link, and the back board is adopted.
  • the inter-interface 4 is transmitted to the merge/selector in the tributary board 303, and is further combined and transmitted to the client side device after the merging/selection process; meanwhile, from the client side
  • the uplink service of the local node of the device is received from the tributary board 303, and after the copy/distributor 305 in the tributary board 303 performs the copy/distribution process, it is inserted into the signal stream of the east link through the inter-board interface 4.
  • the first line veneer 301 outputs the east link output signal from the network side interface after the extraction or insertion process.
  • the second line board 302 receives the input signal of the west link, and the downlink service of the node is extracted from the signal stream of the west link, and is transmitted to the merge/selector in the branch board 303 through the inter-board interface 5 to be merged.
  • the selection process is further transmitted to the client side device; at the same time, the uplink service of the local node from the client side device is received from the tributary board 303, and after being copied/distributed by the copy/distributor in the tributary board 303 Inserted into the signal stream of the westbound link through the inter-board interface 5 to form a westbound link output signal. Further, the second line veneer 302 outputs the output signal of the west link after the extraction or insertion process from the network side interface.
  • the client side device includes a router and a switch.
  • the signal flows in the eastbound link and the westbound link may be wavelength signals or sub-wavelength signals; downlink services and inserted uplinks extracted in the signal flows of the eastbound link and the westbound link.
  • the service can be a wavelength signal or a sub-wavelength signal.
  • the downlink service is extracted in the signal stream of the eastbound link and the westbound link, and the uplink service is inserted by the wavelength selector.
  • the ADM is EADM
  • the signal flows in the eastbound link and the westbound link may be time slot signals; the downlink traffic extracted in the signal flows of the eastbound link and the westbound link, and the inserted uplink traffic may be time slot signals.
  • the downlink service is extracted in the eastbound link and the westbound link, and the uplink service is inserted through the slot selector.
  • the line board is used to receive the east/west link signal, and the east/west link After the signal is passed through the board, the board has an inter-board interface.
  • the downlink service extracted by the line board is output from the inter-board interface.
  • the inserted uplink service is input from the inter-board interface.
  • the inter-board interface on the westbound link is effectively eliminated, which reduces the complexity, power consumption, and cost of the ADM, and improves the link bandwidth processing capability of the device.
  • the ADM includes a first line board 401, a second line board 402, a third line board 403, and a fourth line board 404, wherein the first line board 401 and the second line board
  • the third circuit board 403 and the fourth line board 404 are independent boards, and the first line board 401, the second line board 402, the third line board 403, and the fourth line board 404 may exist.
  • the first line board 401 and the third line board 403 are interconnected by the board interface 78, and the first line board 401 and the fourth line board 404 are interconnected through the board interface 79.
  • the second line board 402 is interconnected.
  • the third line board 403 is interconnected with the third line board 810, and the second line board 402 and the fourth line board 404 are interconnected by the board interface 910.
  • the first line board 401, the second line board 402, the third line board 403, and the fourth line board 404 are respectively provided with at least one merging/selector and at least one copy/distributor.
  • the merge/selector and copy/distributor can be optical/electrical switches.
  • the eastbound link passes through the first line board 401, and the first line board 401 receives the input signal of the eastbound link, and extracts the node from the signal stream of the eastbound link.
  • the downlink service is then copied/distributed through the copy/distributor, and the extracted downlink services are respectively downlinked to the third line board 403 and/or the fourth line board 404; the first line board 401 passes the merge/selector
  • the uplink traffic from the third line board 403 and/or the fourth line board 404 is received and inserted into the signal stream of the east link to form an east link output signal.
  • the first line veneer 401 outputs the east link output signal from the network side interface after the extraction or insertion process.
  • the westbound link passes through the second line card 402, and the second line board 402 receives the input signal of the westbound link, extracts the downlink service of the node from the signal stream of the westbound link, and performs copy/distribution processing through the copy/distributor.
  • the extracted downlink services are respectively downlinked to the third line board 403 and/or the fourth line board 404; the second line board 402 receives the third line board 403 and/or the fourth line through the merge/selector.
  • the uplink service of the board 404 is inserted into the signal stream of the westbound link to form a westbound link output signal.
  • the second line veneer 402 outputs the west link output signal from the network side interface after the extraction or insertion process.
  • the southbound link passes through the third line board 403, and the third line board 403 receives the input signal of the southbound link, extracts the downlink service of the node from the signal stream of the southbound link, and then replicates through the copy/distributor. /Distribution processing, the extracted downlink services are respectively downlinked to the first line board 401 and/or the second line board 402; the third line board 403 receives the first line board 401 and/or through the merge/selector
  • the uplink service of the second line card 402 is inserted into the signal stream of the southbound link to form a southbound link output signal. Further, the third line veneer 403 outputs the southbound link output signal from the network side interface after the extraction or insertion process.
  • the northbound link passes through the fourth line board 404, and the fourth line board 404 receives the input signal of the northbound link, extracts the downlink service of the node from the signal stream of the northbound link, and performs copy/distribution processing through the copy/distributor.
  • the extracted downlink services are respectively downlinked to the first line board 401 and/or the second line board 402; the fourth line board 403 receives the first line board 401 and/or the second line list through the merge/selector.
  • the uplink service of the board 402 is inserted into the signal stream of the northbound link to form a northbound link output signal.
  • the fourth line veneer 404 outputs the northbound link output signal from the network side interface after the extraction or insertion process.
  • the signal flows in the eastbound link, the westbound link, the southbound link, and the northbound link may be wavelength signals or subwavelength signals; in the eastbound link, the westbound link, and the southbound direction.
  • the downlink service and the inserted uplink service extracted from the signal flow of the link and the northbound link may be wavelength signals or sub-wavelength signals.
  • the downlink service is extracted from the eastbound link, the westbound link, the southbound link, and the northbound link, and the uplink service is inserted through the wavelength selector.
  • the signal flows in the eastbound link, the westbound link, the southbound link, and the northbound link may be time slot signals; eastbound link, westbound link, southbound link, northbound link
  • the downlink service and the inserted uplink service extracted in the signal stream may be time slot signals.
  • the downlink service is extracted from the eastbound link, the westbound link, the southbound link, and the northbound link, and the uplink service is inserted by the slot selector.
  • the eastbound link passes through the first line board
  • the westbound link passes through the second line board
  • the southbound link passes through the third line board
  • the northbound link passes through the fourth line board, the first line
  • the service signal stream is extracted and inserted through the inter-board interface.
  • the inter-board interfaces on the eastbound link, the westbound link, the southbound link, and the northbound link are effectively eliminated, which reduces the complexity and power of the ADM. Cost and cost increase the link bandwidth processing capability of the device.
  • FIG. 5 is an exemplary flowchart of a method for signal processing in an add/drop multiplexer according to an embodiment of the invention.
  • the add/drop multiplexer can be an optical add/drop multiplexer OADM and an electrical add/drop multiplexer EADM, and the following steps are performed:
  • the first line board receives the first signal from the first link, and outputs the first signal through the second interface, where the second interface is disposed on the network side of the first line board.
  • the first line board receives the second signal from the first link, and outputs the second signal to the tributary board through the first interface, where the first interface is set in the Between the branch circuit board and the first circuit board.
  • the first line board receives a third signal from the tributary board through the first interface, and inputs the third signal into the first link.
  • the add/drop multiplexer may further include a second line board, the second line board receives the fourth signal from the second link, and outputs the fourth signal through the fourth interface, where the fourth interface is configured The network side of the second line board; the second line board receives the fifth signal from the second link, and outputs the fifth signal to the tributary board through the third interface, and the third interface is disposed on the tributary board And a second line board; the second line board receives the sixth signal from the branch board through the third interface, and inputs the sixth signal into the second link.
  • the add/drop multiplexer may further include a tributary board, and the tributary board receives the second signal from the first line board, and generates a downlink service to the client device through the merge selector on the tributary board; the tributary board And receiving the uplink service from the client device, and generating, by using a replication distributor on the tributary board, the third signal input into the first line card.
  • the add/drop multiplexer may further include: the third line board receives the seventh signal from the third link, and outputs the seventh signal through the sixth interface, and the sixth interface is disposed on the network side of the third line board; The third line board is further configured to receive the eighth signal from the third link, and output the eighth signal to the first line board through the fifth interface, and the fifth interface is set to the first line list. Between the board and the third line board; the third line board is further configured to receive the ninth signal from the first line board through the fifth interface, and input the ninth signal to the third link through the merge selector .
  • the circuit board of the add/drop multiplexer is used to receive the link signal, and the link signal is transmitted through the line board, and exists between the line board and the branch board or between different line boards.
  • the inter-board interface, the downlink service extracted by the line card is output from the inter-board interface, and the inserted uplink service is input from the inter-board interface.
  • the inter-board interface on the link is effectively eliminated, which reduces the complexity, power consumption, and cost of the ADM. Improves the link bandwidth processing capability of the device.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Optical Communication System (AREA)

Abstract

本发明实施例公开了一种分插复用器，包括：第一线路单板和支路单板，所述第一线路单板至少包括第一接口和第二接口，所述第一接口设置于支路单板和第一线路单板之间，所述第二接口设置于第一线路单板的网络侧；所述第一线路单板用于从第一链路接收第一信号，并将所述第一信号通过所述第二接口输出；所述第一线路单板还用于从所述第一链路接收第二信号，并将所述第二信号通过所述第一接口输出到所述支路单板中；所述第一线路单板还用于通过所述第一接口接收来自所述支路单板的第三信号，并将所述第三信号输入到所述第一链路中。通过以上技术方案，链路上的板间接口被有效地消除，降低了ADM的复杂度、功耗和成本，提升了设备的链路带宽处理能力。

Description

一种分插复用器和分插复用器中信号处理的方法 技术领域
本发明涉及通信领域，尤其涉及一种分插复用器和分插复用器中信号处理的方法。
背景技术
在传输网络系统中，需要把信号流从节点上“分”出来，或者把信号流“插”进节点中。这种把信号流“分”出来、“插”进去的设备叫分插复用器(Add/Drop Multiplexer，ADM)。ADM包括光分插复用器(Optical Add/Drop Multiplexer，OADM)和电分插复用器(Electric Add/Drop Multiplexer，EADM)。
由于通信信息的交互性，传输网络通常是双向的，如图1所示。节点N2和节点N6之间的业务P26为双向通信信息，通过各自节点的ADM进行上下，并穿通节点N1的ADM。同理，节点N3和节点N6之间的业务P36为双向通信信息，通过各自节点的ADM进行上下，并穿通节点N4、N5的ADM。如图2所示，ADM通常包括线路单板(Line Card)201、交叉单板(Switch Card)202、线路单板203和支路单板(Tribute Card)204。各单板为独立板卡，便于维护，使得某个单板故障时可以不影响整个链路的通信，各单板之间通过板间接口互联。东向链路上的信号输入至线路单板201，处理后通过板间接口①下行至交叉单板202，再通过板间接口②下行至线路单板203，处理后输出至东向链路出口。西向链路上的信号输入至线路单板203，处理后通过板间接口②下行至交叉单板202，再通过板间接口①下行至线路单板201，处 理后输出至西向链路出口。交叉单板202通过板间接口①从线路单板201接收东向链路的输入信号，或通过板间接口②从线路单板203接收西向链路的输入信号后，本节点的下行业务从东向链路和/或西向链路的信号流中提取，通过合并/选择器处理后，再通过板间接口③送入支路单板204，传送到客户侧设备；交叉单板202通过板间接口③从支路单板204接收本节点的上行业务，本节点的上行业务通过复制/分发器处理后插入到东向链路和/或西向链路的信号流中，通过板间接口②进入线路单板203，或通过板间接口①进入线路单板201，形成东/西向链路的输出信号。
由于ADM的线路单板和交叉单板之间存在板间接口，东/西向链路穿通线路单板和交叉单板之间的板间接口，因此ADM的链路带宽处理能力受限于线路单板和交叉单板板间接口的带宽，ADM的链路带宽处理能力最大不超过线路单板和交叉单板之间板间接口的带宽。
发明内容
有鉴于此，本发明实施例提供一种分插复用器和分插复用器中信号处理的方法，可以解决的ADM的链路带宽处理能力受限于板间接口的带宽的问题。
第一方面，本发明实施例提供了一种分插复用器，所述分插复用器包括：第一线路单板和支路单板，所述第一线路单板至少包括第一接口和第二接口，所述第一接口设置于所述支路单板和所述第一线路单板之间，所述第二接口设置于所述第一线路单板的网络侧；所述第一线路单板用于从第一链路接收第一信号，并将所述第一信号通过所 述第二接口输出；所述第一线路单板还用于从所述第一链路接收第二信号，并将所述第二信号通过所述第一接口输出到所述支路单板中；所述第一线路单板还用于通过所述第一接口接收来自所述支路单板的第三信号，并将所述第三信号输入到所述第一链路中。
结合第一方面的实现方式，在第一方面第一种可能的实现方式中，所述分插复用器还包括：第二线路单板，所述第二线路单板至少包括第三接口和第四接口，所述第三接口设置于所述支路单板和所述第二线路单板之间，所述第四接口设置于所述第二线路单板的网络侧；所述第二线路单板用于从第二链路接收第四信号，并将所述第四信号通过所述第四接口输出；所述第二线路单板还用于从所述第二链路接收第五信号，并将所述第五信号通过所述第三接口输出到所述支路单板中；所述第二线路单板还用于通过所述第三接口接收来自所述支路单板的第六信号，并将所述第六信号输入到所述第二链路中。
结合第一方面、或第一方面第一种可能的实现方式，在第一方面第二种可能的实现方式中，所述支路单板设置于所述第一线路单板和所述第二线路单板的两侧；或者所述支路单板设置于所述第一线路单板和所述第二线路单板的同一侧。
结合第一方面、或第一方面第一种至第二种任一可能的实现方式，在第一方面第三种可能的实现方式中，所述支路单板还包括合并选择器和复制分发器；所述支路单板用于从所述第一线路单板接收所述第二信号，通过所述合并选择器生成下行业务发送到客户设备；所述支路单板还用于接收来自所述客户设备的上行业务，通过所述复制分发 器生成所述第三信号输入到所述第一线路单板中。
结合第一方面、或第一方面第一种至第三种任一可能的实现方式，在第一方面第四种可能的实现方式中，所述分插复用器还包括：第三线路单板，所述第三线路单板上集成了所述支路单板的合并选择器和复制分发器，所述第三线路板至少包括第五接口和第六接口，所述第五接口设置于所述第一线路单板和所述第三线路单板之间，所述第六接口设置于所述第三线路单板的网络侧；所述第三线路单板用于从第三链路接收第七信号，并将所述第七信号通过所述第六接口输出；所述第三线路单板还用于从所述第三链路接收第八信号，并将所述第八信号经过所述复制分发器后通过所述第五接口输出到所述第一线路单板中；所述第三线路单板还用于通过所述第五接口接收来自所述第一线路单板的第九信号，并将所述第九信号通过所述合并选择器输入到所述第三链路中。
第二方面，本发明实施例提供了一种分插复用器中信号处理的方法，所述方法包括：第一线路单板从第一链路接收第一信号，并将所述第一信号通过第二接口输出，所述第二接口设置于所述第一线路单板的网络侧；所述第一线路单板从所述第一链路接收第二信号，并将所述第二信号通过第一接口输出到所述支路单板中，所述第一接口设置于所述支路单板和所述第一线路单板之间；所述第一线路单板通过所述第一接口接收来自所述支路单板的第三信号，并将所述第三信号输入到所述第一链路中。
结合第二方面，在第一方面第一种可能的实现方式中，所述方法 还包括：第二线路单板从第二链路接收第四信号，并将所述第四信号通过第四接口输出，所述第四接口设置于所述第二线路单板的网络侧；所述第二线路单板从所述第二链路接收第五信号，并将所述第五信号通过第三接口输出到所述支路单板中，所述第三接口设置于所述支路单板和所述第二线路单板之间；所述第二线路单板通过所述第三接口接收来自所述支路单板的第六信号，并将所述第六信号输入到所述第二链路中。
结合第二方面、或第一方面第一种可能的实现方式，在第一方面第二种可能的实现方式中，所述支路单板从所述第一线路单板接收所述第二信号，通过所述支路单板上的合并选择器生成下行业务发送到客户设备；所述支路单板接收来自所述客户设备的上行业务，通过所述支路单板上的复制分发器生成所述第三信号输入到所述第一线路单板中。
结合第二方面、或第二方面第一种至第二种任一可能的实现方式，在第二方面第三种可能的实现方式中，所述方法还包括：第三线路单板从第三链路接收第七信号，并将所述第七信号通过第六接口输出，所述第六接口设置于所述第三线路单板的网络侧；所述第三线路单板还用于从所述第三链路接收第八信号，并将所述第八信号经过所述复制分发器后通过第五接口输出到所述第一线路单板中，所述第五接口设置于所述第一线路单板和所述第三线路单板之间；所述第三线路单板还用于通过所述第五接口接收来自所述第一线路单板的第九信号，并将所述第九信号通过所述合并选择器输入到所述第三链路中。
根据本发明实施例提供的技术方案，线路单板用于接收链路信号，链路信号穿通线路单板后输出，线路单板和支路单板之间或不同线路单板之间存在板间接口，线路单板提取的下行业务从板间接口输出，插入的上行业务从板间接口输入，链路上的板间接口被有效地消除，降低了ADM的复杂度、功耗和成本，提升了设备的链路带宽处理能力。
附图说明
为了更清楚地说明本发明的实施例或现有技术中的技术方案，下面将对描述背景技术和实施例时所使用的附图作简单的介绍。显而易见地，下面附图中描述的仅仅是本发明的一部分实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图和描述得到其他的附图或实施例，而本发明旨在涵盖所有这些衍生的附图或实施例。
图1是现有技术传输网络系统结构图；
图2是现有技术分插复用器的结构示意图；
图3a是实现本发明实的一种ADM的结构示意图；
图3b是实现本发明实的另一种ADM的结构示意图；
图4是实现本发明实的又一种ADM的结构示意图；
图5是实现本发明的一种分插复用器中信号处理方法的示范性流程图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合 附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例一
图3a是依据本发明一实施例的一种ADM的结构示意图。该实施例的ADM存在于传输网络上的一个节点中。如图3a所示和图3b所示，ADM包括第一线路单板301、第二线路单板302、支路单板303。其中，第一线路单板301和第二线路单板302可以存在备用单板，因此ADM可以包括至少一个第一线路单板301和至少一个第二线路单板302。支路单板上设有至少一个合并/选择器和至少一个分发/复用器。合并/选择器和复制/分发器可以为光/电开关。如图3a所示，支路单板303设置于第一线路单板301和第二线路单板302的不同侧，通过板间接口④和第一线路单板301互联，支路单板303通过板间接口⑤和第二线路单板302互联。可选地，如图3b所示，支路单板303还可以设置于第一线路单板301和第二线路单板302的同一侧，通过板间接口⑥和第一线301路单板、第二线路单板302互联。
以图3a的实施例为例进行说明，具体实施过程中，第一线路单板301接收东向链路的输入信号，本节点的下行业务从东向链路的信号流中提取，通过后板间接口④传输至支路单板303中的合并/选择器，进行合并/选择处理后进一步传输至客户侧设备；同时，来自客户侧 设备的本节点的上行业务从支路单板303接收，在支路单板303中的复制/分发器305进行复制/分发处理后，通过板间接口④插入到东向链路的信号流中，形成东向链路输出信号。进一步地，第一线单板301将经过提取或插入处理之后东向链路输出信号从网络侧接口输出。第二线路单板302接收西向链路的输入信号，本节点的下行业务从西向链路的信号流中提取，通过板间接口⑤传输至支路单板303中的合并/选择器，进行合并/选择处理后进一步传输至客户侧设备；同时，来自客户侧设备的本节点的上行业务从支路单板303接收，在支路单板303中的通过复制/分发器进行复制/分发处理后，通过板间接口⑤插入到西向链路的信号流中，形成西向链路输出信号。进一步地，第二线单板302将经过提取或插入处理之后西向链路的输出信号从网络侧接口输出。具体地，客户侧设备包括路由器、交换机。
具体地，ADM为OADM时，东向链路和西向链路中的信号流可以为波长信号或子波长信号；在东向链路和西向链路的信号流中提取的下行业务、插入的上行业务可以为波长信号或子波长信号。并且，在东向链路和在西向链路的信号流中提取下行业务、插入上行业务可以通过波长选择器来实现。ADM为EADM时，东向链路和西向链路中的信号流可以为时隙信号；在东向链路和西向链路的信号流中提取的下行业务、插入的上行业务可以为时隙信号。并且，在东向链路和西向链路中提取下行业务、插入上行业务通过时隙选择器来实现。
图3b的实施例具体实施过程与图3a的实施例类似，此处不再赘述。
本实施例中，线路单板用于接收东/西向链路信号，东/西向链路 信号穿通线路单板后输出，线路单板和支路单板之间存在板间接口，线路单板提取的下行业务从板间接口输出，插入的上行业务从板间接口输入，东向链路、西向链路上的板间接口被有效地消除，降低了ADM的复杂度、功耗和成本，提升了设备的链路带宽处理能力。
实施例二
图4是依据本发明一实施例的另一种ADM的结构示意图。该实施例应用于两个传输网络中的链路信息交互的场景，即东向链路和南向链路、北向链路上的信号流之间进行交互，西向链路和南向链路、北向链路上的信号流之间进行交互。如图4所示，ADM包括第一线路单板401、第二线路单板402、第三线路单板403、第四线路单板404，其中，第一线路单板401、第二线路单板402、第三线路单板403和第四线路单板404为独立的单板，第一线路单板401、第二线路单板402、第三线路单板403和第四线路单板404可以存在至少一个备用线路单板。第一线路单板401和第三线路单板403之间通过板间接口⑦⑧互联、第一线路单板401和第四线路单板404之间通过板间接口⑦⑨互联；第二线路单板402和第三线路单板403之间通过板间接口⑧⑩互联、第二线路单板402和第四线路单板404之间通过板间接口⑨⑩互联。第一线路单板401、第二线路单板402、第三线路单板403和第四线路单板404分别设有至少一个合并/选择器和至少一个复制/分发器。合并/选择器和复制/分发器可以为光/电开关。
具体实施过程中，东向链路穿通第一线路单板401，第一线路单板401接收东向链路的输入信号，从东向链路的信号流中提取本节点 的下行业务后通过复制/分发器进行复制/分发处理，提取出的下行业务分别下行至第三线路单板403和/或第四线路单板404；第一线路单板401通过合并/选择器接收来自第三线路单板403和/或第四线路单板404的上行业务，插入到东向链路的信号流中，形成东向链路输出信号。进一步地，第一线单板401将经过提取或插入处理之后东向链路输出信号从网络侧接口输出。西向链路穿通第二线路单板402，第二线路单板402接收西向链路的输入信号，从西向链路的信号流中提取本节点的下行业务后通过复制/分发器进行复制/分发处理，提取出的下行业务分别下行至第三线路单板403和/或第四线路单板404；第二线路单板402通过合并/选择器接收来自第三线路单板403和/或第四线路单板404的上行业务，插入到西向链路的信号流中，形成西向链路输出信号。进一步地，第二线单板402将经过提取或插入处理之后西向链路输出信号从网络侧接口输出。南向链路穿通第三线路单板403，第三线路单板403接收南向链路的输入信号，从南向链路的信号流中提取本节点的下行业务后通过复制/分发器进行复制/分发处理，提取出的下行业务分别下行至第一线路单板401和/或第二线路单板402；第三线路单板403通过合并/选择器接收来自第一线路单板401和/或第二线路单板402的上行业务，插入到南向链路的信号流中，形成南向链路输出信号。进一步地，第三线单板403将经过提取或插入处理之后南向链路输出信号从网络侧接口输出。北向链路穿通第四线路单板404，第四线路单板404接收北向链路的输入信号，从北向链路的信号流中提取本节点的下行业务后通过复制/分发器进行复制/分发处理， 提取出的下行业务分别下行至第一线路单板401和/或第二线路单板402；第四线路单板403通过合并/选择器接收来自第一线路单板401和/或第二线路单板402的上行业务，插入到北向链路的信号流中，形成北向链路输出信号。进一步地，第四线单板404将经过提取或插入处理之后北向链路输出信号从网络侧接口输出。
具体地，ADM为OADM时，东向链路、西向链路、南向链路、北向链路中的信号流可以为波长信号或子波长信号；在东向链路、西向链路、南向链路、北向链路的信号流中提取的下行业务、插入的上行业务可以为波长信号或子波长信号。并且，在东向链路、西向链路、南向链路、北向链路中提取下行业务、插入上行业务通过波长选择器来实现。ADM为EADM时，东向链路、西向链路、南向链路、北向链路中的信号流可以为时隙信号；东向链路、西向链路、南向链路、北向链路的信号流中提取的下行业务、插入的上行业务可以为时隙信号。并且，在东向链路、西向链路、南向链路、北向链路中提取下行业务、插入上行业务通过时隙选择器来实现。
本实施例中，东向链路穿通第一线路单板，西向链路穿通第二线路单板，南向链路穿通第三线路单板，北向链路穿通第四线路单板，第一线路单板和第三线路单板之间、第一线路单板和第四线路单板之间、第二线路单板和第三线路单板之间、第二线路单板和第四线路单板之间通过板间接口进行业务信号流的提取和插入，东向链路、西向链路、南向链路、北向链路上的板间接口被有效地消除，降低了ADM的复杂度、功耗和成本，提升了设备的链路带宽处理能力。
实施例三
图5是依据本发明一实施例的一种分插复用器中信号处理的方法的示范性流程图。如图5所示，分插复用器可以为光分插复用器OADM和电分插复用器EADM，具体执行如下步骤：
S501：第一线路单板从第一链路接收第一信号，并将所述第一信号通过第二接口输出，所述第二接口设置于所述第一线路单板的网络侧。
S502：所述第一线路单板从所述第一链路接收第二信号，并将所述第二信号通过第一接口输出到所述支路单板中，所述第一接口设置于所述支路单板和所述第一线路单板之间。
S503：所述第一线路单板通过所述第一接口接收来自所述支路单板的第三信号，并将所述第三信号输入到所述第一链路中。
具体实施过程中，分插复用器还可以包括第二线路单板，第二线路单板从第二链路接收第四信号，并将第四信号通过第四接口输出，第四接口设置于第二线路单板的网络侧；第二线路单板从第二链路接收第五信号，并将第五信号通过第三接口输出到支路单板中，第三接口设置于支路单板和第二线路单板之间；第二线路单板通过第三接口接收来自支路单板的第六信号，并将第六信号输入到第二链路中。
分插复用器还可以包括支路单板，支路单板从第一线路单板接收第二信号，通过支路单板上的合并选择器生成下行业务发送到客户设备；支路单板接收来自所述客户设备的上行业务，通过支路单板上的复制分发器生成所述第三信号输入到所述第一线路单板中。
分插复用器还可以包括第三线路单板从第三链路接收第七信号，并将第七信号通过第六接口输出，第六接口设置于所述第三线路单板的网络侧；第三线路单板还用于从第三链路接收第八信号，并将第八信号经过复制分发器后通过第五接口输出到第一线路单板中，第五接口设置于第一线路单板和第三线路单板之间；第三线路单板还用于通过第五接口接收来自第一线路单板的第九信号，并将第九信号通过合并选择器输入到第三链路中。
本实施例中，分插复用器的线路单板单板用于接收链路信号，链路信号穿通线路单板后输出，线路单板和支路单板之间或不同线路单板之间存在板间接口，线路单板提取的下行业务从板间接口输出，插入的上行业务从板间接口输入，链路上的板间接口被有效地消除，降低了ADM的复杂度、功耗和成本，提升了设备的链路带宽处理能力。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
以上所述，仅为本发明的具体实施方式，但本发明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发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。
以上所述仅为本发明的几个实施例，本领域的技术人员依据申请文件公开的可以对本发明进行各种改动或变型而不脱离本发明的精神和范围。

Claims (9)

  1. 一种分插复用器，其特征在于，所述分插复用器包括：
    第一线路单板和支路单板，
    所述第一线路单板至少包括第一接口和第二接口，所述第一接口设置于所述支路单板和所述第一线路单板之间，所述第二接口设置于所述第一线路单板的网络侧；
    所述第一线路单板用于从第一链路接收第一信号，并将所述第一信号通过所述第二接口输出；
    所述第一线路单板还用于从所述第一链路接收第二信号，并将所述第二信号通过所述第一接口输出到所述支路单板中；
    所述第一线路单板还用于通过所述第一接口接收来自所述支路单板的第三信号，并将所述第三信号输入到所述第一链路中。
  2. 如权利要求1所述的分插复用器，其特征在于，所述分插复用器还包括：
    第二线路单板，所述第二线路单板至少包括第三接口和第四接口，所述第三接口设置于所述支路单板和所述第二线路单板之间，所述第四接口设置于所述第二线路单板的网络侧；
    所述第二线路单板用于从第二链路接收第四信号，并将所述第四信号通过所述第四接口输出；
    所述第二线路单板还用于从所述第二链路接收第五信号，并将所述第五信号通过所述第三接口输出到所述支路单板中；
    所述第二线路单板还用于通过所述第三接口接收来自所述支路 单板的第六信号，并将所述第六信号输入到所述第二链路中。
  3. 如权利要求1或2所述的分插复用器，其特征在于，其中：
    所述支路单板设置于所述第一线路单板和所述第二线路单板的两侧；或者所述支路单板设置于所述第一线路单板和所述第二线路单板的同一侧。
  4. 如权利要求1所述的分插复用器，其特征在于，其中：
    所述支路单板还包括合并选择器和复制分发器；
    所述支路单板用于从所述第一线路单板接收所述第二信号，通过所述合并选择器生成下行业务发送到客户设备；
    所述支路单板还用于接收来自所述客户设备的上行业务，通过所述复制分发器生成所述第三信号输入到所述第一线路单板中。
  5. 如权利要求1或2所述的分插复用器，其特征在于，所述分插复用器还包括：
    第三线路单板，所述第三线路单板上集成了所述支路单板的合并选择器和复制分发器，所述第三线路板至少包括第五接口和第六接口，所述第五接口设置于所述第一线路单板和所述第三线路单板之间，所述第六接口设置于所述第三线路单板的网络侧；
    所述第三线路单板用于从第三链路接收第七信号，并将所述第七信号通过所述第六接口输出；
    所述第三线路单板还用于从所述第三链路接收第八信号，并将所述第八信号经过所述复制分发器后通过所述第五接口输出到所述第一线路单板中；
    所述第三线路单板还用于通过所述第五接口接收来自所述第一线路单板的第九信号，并将所述第九信号通过所述合并选择器输入到所述第三链路中。
  6. 一种分插复用器中信号处理的方法，其特征在于，所述方法包括：
    第一线路单板从第一链路接收第一信号，并将所述第一信号通过第二接口输出，所述第二接口设置于所述第一线路单板的网络侧；
    所述第一线路单板从所述第一链路接收第二信号，并将所述第二信号通过第一接口输出到所述支路单板中，所述第一接口设置于所述支路单板和所述第一线路单板之间；
    所述第一线路单板通过所述第一接口接收来自所述支路单板的第三信号，并将所述第三信号输入到所述第一链路中。
  7. 如权利要求6所述的方法，其特征在于，所述方法还包括：
    第二线路单板从第二链路接收第四信号，并将所述第四信号通过第四接口输出，所述第四接口设置于所述第二线路单板的网络侧；
    所述第二线路单板从所述第二链路接收第五信号，并将所述第五信号通过第三接口输出到所述支路单板中，所述第三接口设置于所述支路单板和所述第二线路单板之间；
    所述第二线路单板通过所述第三接口接收来自所述支路单板的第六信号，并将所述第六信号输入到所述第二链路中。
  8. 如权利要求6所述的方法，其特征在于，其中：
    所述支路单板从所述第一线路单板接收所述第二信号，通过所述 支路单板上的合并选择器生成下行业务发送到客户设备；
    所述支路单板接收来自所述客户设备的上行业务，通过所述支路单板上的复制分发器生成所述第三信号输入到所述第一线路单板中。
  9. 如权利要求6或7所述的方法，其特征在于，所述方法还包括：
    第三线路单板从第三链路接收第七信号，并将所述第七信号通过第六接口输出，所述第六接口设置于所述第三线路单板的网络侧；
    所述第三线路单板还用于从所述第三链路接收第八信号，并将所述第八信号经过所述复制分发器后通过第五接口输出到所述第一线路单板中，所述第五接口设置于所述第一线路单板和所述第三线路单板之间；
    所述第三线路单板还用于通过所述第五接口接收来自所述第一线路单板的第九信号，并将所述第九信号通过所述合并选择器输入到所述第三链路中。
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EP3249834B1 (en) 2019-08-14
CN106258014B (zh) 2018-12-07
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