WO2022042647A1 - 发送端运行、管理和维护插入、提取方法、设备及介质 - Google Patents

发送端运行、管理和维护插入、提取方法、设备及介质 Download PDF

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Publication number
WO2022042647A1
WO2022042647A1 PCT/CN2021/114763 CN2021114763W WO2022042647A1 WO 2022042647 A1 WO2022042647 A1 WO 2022042647A1 CN 2021114763 W CN2021114763 W CN 2021114763W WO 2022042647 A1 WO2022042647 A1 WO 2022042647A1
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Prior art keywords
opportunity
type
code block
oam
messages
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PCT/CN2021/114763
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English (en)
French (fr)
Inventor
李晗
程伟强
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Application filed by 中国移动通信有限公司研究院, 中国移动通信集团有限公司 filed Critical 中国移动通信有限公司研究院
Priority to CA3193451A priority Critical patent/CA3193451A1/en
Priority to EP21860481.7A priority patent/EP4207859A1/en
Priority to AU2021332873A priority patent/AU2021332873B2/en
Priority to US18/043,406 priority patent/US20230337212A1/en
Priority to JP2023514015A priority patent/JP2023539330A/ja
Publication of WO2022042647A1 publication Critical patent/WO2022042647A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057—Operations, administration and maintenance [OAM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0073—Services, e.g. multimedia, GOS, QOS
    • H04J2203/0082—Interaction of SDH with non-ATM protocols
    • H04J2203/0085—Support of Ethernet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0089—Multiplexing, e.g. coding, scrambling, SONET
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H04J3/1658—Optical Transport Network [OTN] carrying packets or ATM cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays
    • H04L43/0858—One way delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays
    • H04L43/0864—Round trip delays

Definitions

  • the present disclosure relates to the technical field of wireless communication, and in particular, to a method, device and medium for insertion and extraction of the operation, management and maintenance of a transmitting end.
  • SPN Silicon Packet Network, Slicing Packet Network
  • SPN Slicing Packet Network
  • Slicing Packet Network is a transport network technology mechanism mainly oriented to the bearing of integrated services in the metro area. For comprehensive bearer, it has the ability to isolate resource slices on a physical network and provide differentiated (such as bandwidth, delay, jitter, etc.) business bearer services for multiple services.
  • End-to-end cross-connect based on Metro transport network channel (MTN path; MTN: Metro transport network): Provides packet network hard slicing, low-latency forwarding and bandwidth guarantee through serial cross-connect based on 66B code blocks , through the MTN path layer end-to-end OAM (operations, management and maintenance, Operations, Administration and Maintenance) and protection to provide hard-sliced carrier-level operation and maintenance capabilities.
  • MTN path MTN: Metro transport network
  • OAM operations, management and maintenance, Operations, Administration and Maintenance
  • Carrier-level fault detection and performance management It has network-level hierarchical OAM fault detection and performance management capabilities. Properties such as delay and jitter are monitored and managed.
  • MTN slicing MTN Path and MTN Section (MTN slicing) technologies based on TDM (Time Division Multiplexing) time slots to provide L1-based low-latency, hard-isolated slice channels for multi-service bearers, including the following technologies:
  • MTN Channel The channel of the Ethernet 66B code block sequence cross-connect (S-XC) of the interface of 50GE and above, which realizes the L1 layer networking of the end-to-end slice channel.
  • S-XC L1 channel crossover technology based on Ethernet 66B code block sequence.
  • MTN Path layer and its OAM overhead Extend the Ethernet 66B code block for interfaces of 50GE and above, and replace the IDLE (idle) code block with the OAM code block to implement the OAM function of the MTN Path layer.
  • MTN Section layer frame structure and its OAM overhead reuse of OIF FlexE (OIF FlexE, OIF: Optical Internet Forum, Optical Internet Forum) frame structure, sub-rate, binding and other functional logic MTN segment layer network interfaces and their alarms and performance Manage overhead functions.
  • OIF FlexE OIF FlexE, OIF: Optical Internet Forum, Optical Internet Forum
  • the deficiency of the related art lies in how to insert the OAM code block.
  • the present disclosure provides a method, device and storage medium for OAM insertion and extraction at the transmitting end, so as to solve how to insert an OAM code block.
  • a method for inserting OAM at a sending end comprising:
  • the MTN path layer OAM is carried by code blocks
  • Path layer OAM code blocks are inserted into a sequence of code blocks with a nominal period of N.
  • the code blocks are 64B/66B code blocks.
  • the position where the OAM code block is inserted is located in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the implementation further includes:
  • the MTN path layer deletes Idle Blocks from the code block sequence as needed to compensate for the insertion of the OAM code block.
  • the insertion opportunity at insertion time includes one or a combination of the following types:
  • the first type of opportunity being an opportunity to insert path status and error monitoring messages
  • a second type of insertion opportunity is an opportunity to insert an APS message
  • a third type of insertion opportunity is an opportunity to insert a block from a low priority message.
  • the implementation further includes:
  • the insertion opportunity is not used for unavailable APS or low priority messages.
  • the third type of insertion opportunity is based on 64 third type of insertion opportunities as a cycle.
  • messages are sent in one or a combination of the following ways:
  • CV messages are sent in the 1st to 17th allotted opportunities out of 64;
  • the CS message is sent at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are sent in the 19th to 31st allocated opportunities out of 64 opportunities;
  • 1DM and 2DMM messages are sent when requested by the system.
  • sending a 2DMR message is in response to a received 2DMM message.
  • messages are not sent on reserved opportunities.
  • the implementation further includes:
  • the frame lock state is entered; if the message of the first type of insertion opportunity cannot be found in the consecutive j expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered; if the first code block of consecutive l CV messages is received The expected position of the code block, if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • a method for extracting OAM at a sending end comprising:
  • the MTN path layer OAM is carried by code blocks
  • Path layer OAM code blocks are extracted from code block sequences of which N is a nominal period.
  • the code blocks are 64B/66B code blocks.
  • the position where the OAM code block is extracted is located in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the implementation further includes:
  • the MTN path layer inserts idle blocks Idle Blocks from the code block sequence as needed to compensate for the extraction of the OAM code blocks.
  • the extraction opportunities at the time of extraction include one or a combination of the following types:
  • the first type of opportunity being an opportunity to extract path status and error monitoring messages
  • a second type of extraction opportunity is an opportunity to extract APS messages
  • a third type of extraction opportunity is the opportunity to extract blocks from low priority messages.
  • the implementation further includes:
  • the third type of extraction opportunity is based on a cycle of 64 of the third type of extraction opportunities.
  • messages are received in one or a combination of the following ways:
  • CV messages are received in the 1st to 17th allotted opportunities out of 64;
  • the CS message is received at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are received in the 19th to 31st allocated opportunities out of 64 opportunities;
  • 1DM and 2DMM messages are received upon request from the system.
  • the received 2DMR message is used in response to the sent 2DMM message.
  • messages are not received in reserved opportunities.
  • the implementation further includes:
  • the frame lock state is entered; if the message of the first type of extraction opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered;
  • the expected position of the code block if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • a communication device comprising:
  • the processor for reading the program in memory, performs the following processes:
  • the MTN path layer OAM is carried by code blocks
  • the path layer OAM code block is inserted into the code block sequence with N as the nominal period;
  • a transceiver for receiving and transmitting data under the control of the processor.
  • the code blocks are 64B/66B code blocks.
  • the position where the OAM code block is inserted is located in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the implementation further includes:
  • the MTN path layer deletes Idle Blocks from the code block sequence as needed to compensate for the insertion of the OAM code block.
  • the insertion opportunity at insertion time includes one or a combination of the following types:
  • the first type of opportunity being an opportunity to insert path status and error monitoring messages
  • a second type of insertion opportunity is an opportunity to insert an APS message
  • a third type of insertion opportunity is an opportunity to insert a block from a low priority message.
  • the implementation further includes:
  • the insertion opportunity is not used for unavailable APS or low priority messages.
  • the third type of insertion opportunity is based on 64 third type of insertion opportunities as a cycle.
  • messages are sent in one or a combination of the following ways:
  • CV messages are sent in the 1st to 17th allotted opportunities out of 64;
  • the CS message is sent at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are sent in the 19th to 31st allocated opportunities out of 64 opportunities;
  • 1DM and 2DMM messages are sent when requested by the system.
  • sending a 2DMR message is in response to a received 2DMM message.
  • messages are not sent on reserved opportunities.
  • the implementation further includes:
  • the frame lock state is entered; if the message of the first type of insertion opportunity cannot be found in the consecutive j expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered; if the first code block of consecutive l CV messages is received The expected position of the code block, if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • a communication device comprising:
  • Bearing module used for MTN path layer OAM using code block bearing
  • Insertion module for the path layer OAM code block to be inserted into the code block sequence with N as the nominal period.
  • the bearer module is further used to bear with 64B/66B code blocks.
  • the inserting module is further configured to insert the position where the OAM code block is inserted in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the plug-in module is further used to:
  • the MTN path layer deletes Idle Blocks from the code block sequence as needed to compensate for the insertion of the OAM code block.
  • the insertion opportunity when the insertion module is further used for insertion includes one of the following types or a combination thereof:
  • the first type of opportunity being an opportunity to insert path status and error monitoring messages
  • a second type of insertion opportunity is an opportunity to insert an APS message
  • a third type of insertion opportunity is an opportunity to insert a block from a low priority message.
  • the insertion module is further configured to not use the insertion opportunity for unavailable APS or low priority messages.
  • the third type of insertion opportunity is based on 64 third type of insertion opportunities as a cycle.
  • the insertion module is further configured to send a message in one of the third type of insertion opportunity cycle in one of the following ways or a combination thereof:
  • CV messages are sent in the 1st to 17th allotted opportunities out of 64;
  • the CS message is sent at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are sent in the 19th to 31st allocated opportunities out of 64 opportunities;
  • the plug-in module is further configured to send 1DM and 2DMM messages when requested by the system.
  • the insertion module is further configured to send a 2DMR message in response to the received 2DMM message.
  • the plug-in module is further configured to not send messages in reserved opportunities.
  • the plug-in module is further configured to determine whether the OAM code block is locked or lost in the following manner:
  • the frame lock state is entered; if the message of the first type of insertion opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered;
  • the expected position of the code block if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • a communication device comprising:
  • the processor for reading the program in memory, performs the following processes:
  • the MTN path layer OAM is carried by code blocks
  • a transceiver for receiving and transmitting data under the control of the processor.
  • the code blocks are 64B/66B code blocks.
  • the position where the OAM code block is extracted is located in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the implementation further includes:
  • the MTN path layer inserts idle blocks Idle Blocks from the code block sequence as needed to compensate for the extraction of the OAM code blocks.
  • the extraction opportunities at the time of extraction include one or a combination of the following types:
  • the first type of opportunity being an opportunity to extract path status and error monitoring messages
  • a second type of extraction opportunity is an opportunity to extract APS messages
  • a third type of extraction opportunity is the opportunity to extract blocks from low priority messages.
  • the implementation further includes:
  • the third type of extraction opportunity is based on a cycle of 64 of the third type of extraction opportunities.
  • messages are received in one or a combination of the following ways:
  • CV messages are received in the 1st to 17th allotted opportunities out of 64;
  • the CS message is received at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are received in the 19th to 31st allocated opportunities out of 64 opportunities;
  • 1DM and 2DMM messages are received upon request from the system.
  • the received 2DMR message is used in response to the sent 2DMM message.
  • messages are not received in reserved opportunities.
  • the implementation further includes:
  • the frame lock state is entered; if the message of the first type of extraction opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered; if the first code block of consecutive l CV messages is received The expected position of the code block, if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • a communication device comprising:
  • Bearing module used for MTN path layer OAM using code block bearing
  • the extracting module is used to extract the path layer OAM code block from the code block sequence of which N is the nominal period.
  • the bearer module is further used to bear with 64B/66B code blocks.
  • the extracting module is further configured to locate the position where the OAM code block is extracted in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the take-out module is further used to:
  • the MTN path layer inserts idle blocks Idle Blocks from the code block sequence as needed to compensate for the extraction of the OAM code blocks.
  • the extraction opportunity when the extraction module is further used for extraction includes one of the following types or a combination thereof:
  • the first type of opportunity being an opportunity to extract path status and error monitoring messages
  • a second type of extraction opportunity is an opportunity to extract APS messages
  • a third type of extraction opportunity is the opportunity to extract blocks from low priority messages.
  • the fetching module is further configured to not fetch unavailable APS or low-priority messages.
  • the third type of extraction opportunity is based on a cycle of 64 of the third type of extraction opportunities.
  • the retrieval module is further configured to receive messages in one or a combination of the following manners in a third type of retrieval opportunity cycle:
  • CV messages are received in the 1st to 17th allotted opportunities out of 64;
  • the CS message is received at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are received in the 19th to 31st allocated opportunities out of 64 opportunities;
  • the fetch module is further configured to receive 1DM and 2DMM messages when requested by the system.
  • the fetching module is further configured to receive a 2DMR message used in response to the sent 2DMM message.
  • the fetch module is further configured to not receive messages in reserved opportunities.
  • the take-out module is further configured to determine whether the OAM code block is locked or lost in the following manner:
  • the frame lock state is entered; if the message of the first type of extraction opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered; if the first code block of consecutive l CV messages is received The expected position of the code block, if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • a computer-readable storage medium where the computer-readable storage medium stores a computer program for executing the above-mentioned method for inserting and/or taking out the OAM at the sending end.
  • the MTN path layer OAM is carried by code blocks, and the OAM code blocks are inserted into the code block sequence with N as the nominal period, it solves the problem that the MTN network transmits various OAM messages OAM code block insertion problem.
  • FIG. 1 is a schematic flowchart of the implementation of a method for inserting OAM at a transmitting end in an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of MTNP OAM block insertion in an embodiment of the present disclosure in an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of an insertion opportunity mode in an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of an insertion opportunity in an embodiment of the present disclosure.
  • FIG. 5 is a schematic flowchart of the implementation of a method for extracting OAM at a sending end in an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a communication device 1 in an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a communication device 2 in an embodiment of the present disclosure.
  • the embodiments of the present disclosure provide a sending end OAM insertion and extraction solution.
  • FIG. 1 is a schematic flowchart of the implementation of the OAM insertion method at the transmitting end. As shown in the figure, it may include:
  • Step 101 MTN path layer OAM adopts code block to bear
  • Step 102 The path layer OAM code block is inserted into the code block sequence with N as the nominal period.
  • the code blocks are 64B/66B code blocks.
  • the MTN (Metro transport network) path layer OAM (Operations, Administration and Maintenance, Operations, Administration and Maintenance) is carried by 64B/66B code blocks, and the path layer OAM code block is inserted into the symbol with N as the standard Called periodic 64B/66B code block sequence.
  • the position where the OAM code block is inserted is located in the message gap IPG (Interframe Gap);
  • n is the number of calendar time slots occupied by the path; wherein, the calendar time slot may be 5Gbps.
  • the MTN path layer deletes idle blocks (Idle Blocks) from the code block sequence as needed to compensate for the insertion of the OAM code blocks.
  • the MTN path layer deletes idle blocks (Idle Blocks) from the 64B/66B code block sequence as needed to compensate for the insertion of the path layer OAM;
  • Path OAM blocks are inserted into the client block sequence with a nominal period of n ⁇ 16K blocks,where n is the number of 5 Gbit/s calendar slots that the path occupies.
  • n is the number of 5 Gbit/s calendar slots that the path occupies.
  • the actual insertion of each OAM block is delayed from the nominal insertion point so that the OAM block falls in the interpacket gap as shown in figure 2 Delaying insertion of a block does not change the nominal insertion point of the next block.Idle blocks are removed as necessary from the client block sequence to compensate for the insertion of the path OAM.
  • FIG. 2 is the schematic diagram of MTNP OAM block insertion.
  • the insertion opportunity at insertion time includes one or a combination of the following types:
  • the first type of opportunity being an opportunity to insert path status and error monitoring messages
  • a second type of insertion opportunity is an opportunity to insert an APS message
  • a third type of insertion opportunity is an opportunity to insert a block from a low priority message.
  • FIG. 3 is a schematic diagram of the insertion opportunity mode.
  • the insertion mechanism follows a regular insertion opportunity mechanism, which divides the insertion opportunities into three categories, the first category, the second category and the third category.
  • the insertion method is shown in Figure 3.
  • B (type 1) represents path status and error monitoring messages
  • A (type 2) represents the opportunity to insert APS (Automatic Protection Switch) messages
  • L (type 3) ) represents an opportunity to insert a block (if any) from a lower priority message.
  • it may further include:
  • the insertion opportunity is not used for unavailable APS or low priority messages.
  • the insertion follows a regular pattern of opportunities as shown in figure4.
  • B represents a path status and error monitoring message
  • A represents an opportunity to insert an APS message
  • L represents an opportunity to insert a blockage from a low priority if one is available. If an APS or low priority message is not available, nothing is transmitted in those opportunities.
  • Figure 4 Pattern of insertion opportunities) (insertion follows the normal opportunistic pattern shown in Figure 4.
  • B represents path status and error monitoring messages
  • a represents the opportunity to insert an APS message
  • L represents the opportunity (if any) to insert a block from a low-priority message. If APS or low-priority messages are not available, nothing will be transmitted in these opportunities.
  • Figure 4 shows the insertion Schematic diagram of the opportunity model.
  • the third type of insertion opportunity is based on 64 third type of insertion opportunities as a cycle.
  • messages are sent in one or a combination of the following ways:
  • CV messages are sent in the 1st to 17th allotted opportunities out of 64;
  • the CS message is sent at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are sent in the 19th to 31st allocated opportunities out of 64 opportunities;
  • the third type of message follows a regular insertion opportunity mechanism, with 64 third type of insertion opportunities as a cycle.
  • the allocation of insertion opportunities is shown in Table 1 below:
  • CV Connection Verification, Connectivity Verification
  • CS Capability Set, Capability Set
  • 1DM single-item delay measurement, one way delay measurement
  • 2DMM two-way delay measurement message, two way delay measurement message
  • 2DMR two-way delay measurement response, two-way delay measurement response
  • the sequence of low priority opportunities follows a regular pattern of 64 opportunities, as shown in Table 1.This results in an overall cycle of 256 OAM blocks. (The order of low priority opportunities follows the regular pattern of 64 opportunities, as in Table 1. This results in a total cycle of 256 OAM blocks.)
  • the CV and CS messages are sent at every opportunity. 1DM and 2DMM messages are sent when requested by the management system. 2DMR messages are sent in response to receiving a 2DMM message. (CV and CS messages are sent at every opportunity. When management When requested by the system, send 1DM and 2DMM messages. Send 2DMR messages in response to receiving 2DMM messages)
  • Two levels of frame lock are defined.
  • the first level is alignment with the high-level pattern shown in Figure 2.
  • the in-frame state is entered if 2 consecutive path status and error monitoring messages are found in the expected location.
  • the out of frame state is entered if a path status and error monitoring message is not found in 5 consecutive expected locations. (Two levels of frame locking are defined.
  • the first level is consistent with the high-level schema shown in Figure 2. If in the expected locations If two consecutive path status and error monitoring messages are found, enter the intra-frame state. If the path status and error monitoring messages are not found in 5 consecutive expected positions, enter the out-of-frame state)
  • the second level of alignment is to the low priority opportunities.
  • the in-frame state is entered if the first block of the CV message is found in the expected position 2 consecutive cycles of 256 OAM blocks.
  • the out of frame state is entered if the first block of the CV message is not found in the expected position in 3 consecutive cycles of 256 OAM blocks. (The second level of adjustment is for low priority opportunities. If 2 consecutive cycles at the expected position of 256 OAM blocks If the first block of the CV message is found in the 256 OAM block, it will enter the intra-frame state. If the first block of the CV message is not found at the expected position in 3 consecutive cycles of 256 OAM blocks, it will enter the out-of-frame state)
  • it may further include:
  • the frame lock state is entered; if the message of the first type of insertion opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered;
  • the expected position of the code block if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • the OAM frame lock/unlock judgment mechanism may be as follows:
  • the first level for the first type of insertion opportunity, if it finds i consecutive messages of the first type of insertion opportunity in the expected position, it enters the frame lock state; if the first type of insertion opportunity is not found in the j consecutive expected positions opportunity message, enter the frame out-of-lock state.
  • the second level for the third type of insertion opportunity. If the correct code block can be received at the expected position of the first code block of the consecutive k CV messages, the frame lock state is entered; if the expected position of the first code block of the consecutive l CV messages is not If the correct code block can be received, it will enter the frame out-of-lock state.
  • FIG. 5 is a schematic flowchart of the implementation of the method for extracting OAM at the sending end. As shown in the figure, it may include:
  • Step 501 MTN path layer OAM adopts code block bearing
  • Step 502 Extract the path layer OAM code block from the code block sequence with N being the nominal period.
  • the code blocks are 64B/66B code blocks.
  • the path OAM is recognized based on the block being an ordered set with O-code 0xC.Blocks matching this signature are extracted from the received block sequence and processed as OAM blocks.To compensate for the removed OAM blocks,Idle blocks are inserted into the block sequence to maintain the same clock. (Path OAM is identified by the block is an ordered set of O-code 0xC. Blocks matching this signature are extracted from the received block sequence and processed as OAM blocks. To compensate for the removed OAM blocks, free blocks are inserted into the block sequence to maintain the same clock.)
  • the position where the OAM code block is extracted is located in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the implementation further includes:
  • the MTN path layer inserts idle blocks Idle Blocks from the code block sequence as needed to compensate for the extraction of the OAM code blocks.
  • the extraction opportunities at the time of extraction include one or a combination of the following types:
  • the first type of opportunity being an opportunity to extract path status and error monitoring messages
  • a second type of extraction opportunity is an opportunity to extract APS messages
  • a third type of extraction opportunity is the opportunity to extract blocks from low priority messages.
  • the implementation further includes:
  • the third type of extraction opportunity is based on a cycle of 64 of the third type of extraction opportunities.
  • messages are received in one or a combination of the following ways:
  • CV messages are received in the 1st to 17th allotted opportunities out of 64;
  • the CS message is received at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are received in the 19th to 31st allocated opportunities out of 64 opportunities;
  • 1DM and 2DMM messages are received upon request from the system.
  • the received 2DMR message is used in response to the sent 2DMM message.
  • messages are not received in reserved opportunities.
  • the implementation further includes:
  • the frame lock state is entered; if the message of the first type of extraction opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered; if the first code block of consecutive l CV messages is received The expected position of the code block, if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • the embodiments of the present disclosure also provide a communication device and a computer-readable storage medium. Since the principle of these devices for solving problems is similar to the method for inserting OAM at the transmitting end and the method for removing OAM at the transmitting end, the For the implementation, refer to the implementation of the method, and the repetition will not be repeated.
  • FIG. 6 is a schematic structural diagram of the communication device 1. As shown in the figure, the base station includes:
  • the processor 600 is configured to read the program in the memory 620, and execute the following processes:
  • the MTN path layer OAM is carried by code blocks
  • the path layer OAM code block is inserted into the code block sequence with N as the nominal period;
  • the transceiver 610 is used for receiving and transmitting data under the control of the processor 600 .
  • the code blocks are 64B/66B code blocks.
  • the position where the OAM code block is inserted is located in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the implementation further includes:
  • the MTN path layer deletes idle blocks Idle Blocks from the code block sequence as needed to compensate for the insertion of the OAM code blocks.
  • the insertion opportunity at insertion time includes one or a combination of the following types:
  • the first type of opportunity being an opportunity to insert path status and error monitoring messages
  • a second type of insertion opportunity is an opportunity to insert an APS message
  • a third type of insertion opportunity is an opportunity to insert a block from a low priority message.
  • the implementation further includes:
  • the insertion opportunity is not used for unavailable APS or low priority messages.
  • the third type of insertion opportunity is based on 64 third type of insertion opportunities as a cycle.
  • messages are sent in one or a combination of the following ways:
  • CV messages are sent in the 1st to 17th allotted opportunities out of 64;
  • the CS message is sent at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are sent in the 19th to 31st allocated opportunities out of 64 opportunities;
  • 1DM and 2DMM messages are sent when requested by the system.
  • sending a 2DMR message is in response to a received 2DMM message.
  • messages are not sent on reserved opportunities.
  • the implementation further includes:
  • the frame lock state is entered; if the message of the first type of insertion opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered;
  • the expected position of the code block if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 600 and various circuits of memory represented by memory 620 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 610 may be a number of elements, ie, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.
  • An embodiment of the present disclosure provides a communication device, including:
  • Bearing module used for MTN path layer OAM using code block bearing
  • Insertion module for the path layer OAM code block to be inserted into the code block sequence with N as the nominal period.
  • the bearer module is further used to bear with 64B/66B code blocks.
  • the inserting module is further configured to insert the position where the OAM code block is inserted in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the plug-in module is further used to:
  • the MTN path layer deletes idle blocks Idle Blocks from the code block sequence as needed to compensate for the insertion of the OAM code blocks.
  • the insertion opportunity when the insertion module is further used for insertion includes one of the following types or a combination thereof:
  • the first type of opportunity being an opportunity to insert path status and error monitoring messages
  • a second type of insertion opportunity is an opportunity to insert an APS message
  • a third type of insertion opportunity is an opportunity to insert a block from a low priority message.
  • the insertion module is further configured to not use the insertion opportunity for unavailable APS or low priority messages.
  • the third type of insertion opportunity is based on 64 third type of insertion opportunities as a cycle.
  • the insertion module is further configured to send a message in one of the third type of insertion opportunity cycle in one of the following ways or a combination thereof:
  • CV messages are sent in the 1st to 17th allotted opportunities out of 64;
  • the CS message is sent at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are sent in the 19th to 31st allocated opportunities out of 64 opportunities;
  • the plug-in module is further configured to send 1DM and 2DMM messages when requested by the system.
  • the insertion module is further configured to send a 2DMR message in response to the received 2DMM message.
  • the plug-in module is further configured to not send messages in reserved opportunities.
  • the plug-in module is further configured to determine whether the OAM code block is locked or lost in the following manner:
  • the frame lock state is entered; if the message of the first type of insertion opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered;
  • the expected position of the code block if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • each part of the device described above is divided into various modules or units by function and described respectively.
  • the functions of each module or unit may be implemented in one or more software or hardware.
  • FIG. 7 is a schematic structural diagram of the communication device 2. As shown in the figure, the base station includes:
  • the processor 700 is configured to read the program in the memory 720 and perform the following processes:
  • the MTN path layer OAM is carried by code blocks
  • the transceiver 710 is used to receive and transmit data under the control of the processor 700 .
  • the code blocks are 64B/66B code blocks.
  • the position where the OAM code block is extracted is located in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the implementation further includes:
  • the MTN path layer inserts idle blocks Idle Blocks from the code block sequence as needed to compensate for the extraction of the OAM code blocks.
  • the extraction opportunities at the time of extraction include one or a combination of the following types:
  • the first type of opportunity being an opportunity to extract path status and error monitoring messages
  • a second type of extraction opportunity is an opportunity to extract APS messages
  • a third type of extraction opportunity is the opportunity to extract blocks from low priority messages.
  • the implementation further includes:
  • the third type of extraction opportunity is based on a cycle of 64 of the third type of extraction opportunities.
  • messages are received in one or a combination of the following ways:
  • CV messages are received in the 1st to 17th allotted opportunities out of 64;
  • the CS message is received at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are received in the 19th to 31st allocated opportunities out of 64 opportunities;
  • 1DM and 2DMM messages are received upon request from the system.
  • the received 2DMR message is used in response to the sent 2DMM message.
  • messages are not received in reserved opportunities.
  • the implementation further includes:
  • the frame lock state is entered; if the message of the first type of extraction opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered;
  • the expected position of the code block if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 700 and various circuits of memory represented by memory 720 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 710 may be a number of elements, ie, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
  • Embodiments of the present disclosure also provide a communication device, including:
  • Bearing module used for MTN path layer OAM using code block bearing
  • the extracting module is used to extract the path layer OAM code block from the code block sequence of which N is the nominal period.
  • the bearer module is further used to bear with 64B/66B code blocks.
  • the extracting module is further configured to locate the position where the OAM code block is extracted in the message gap IPG.
  • the N n*16k, where n is the number of calendar time slots occupied by the path.
  • the calendar slot is 5Gbps.
  • the take-out module is further used to:
  • the MTN path layer inserts idle blocks Idle Blocks from the code block sequence as needed to compensate for the extraction of the OAM code blocks.
  • the extraction opportunity when the extraction module is further used for extraction includes one of the following types or a combination thereof:
  • the first type of opportunity being an opportunity to extract path status and error monitoring messages
  • a second type of extraction opportunity is an opportunity to extract APS messages
  • a third type of extraction opportunity is the opportunity to extract blocks from low priority messages.
  • the fetching module is further configured to not fetch unavailable APS or low-priority messages.
  • the third type of extraction opportunity is based on a cycle of 64 of the third type of extraction opportunities.
  • the retrieval module is further configured to receive messages in one or a combination of the following manners in a third type of retrieval opportunity cycle:
  • CV messages are received in the 1st to 17th allotted opportunities out of 64;
  • the CS message is received at the 18th opportunity out of 64;
  • 1DM or 2DMM or 2DMR messages are received in the 19th to 31st allocated opportunities out of 64 opportunities;
  • the fetch module is further configured to receive 1DM and 2DMM messages when requested by the system.
  • the fetching module is further configured to receive a 2DMR message used in response to the sent 2DMM message.
  • the fetch module is further configured to not receive messages in reserved opportunities.
  • the take-out module is further configured to determine whether the OAM code block is locked or lost in the following manner:
  • the frame lock state is entered; if the message of the first type of extraction opportunity cannot be found in j consecutive expected positions, Then enter the frame out-of-lock state;
  • the frame lock state is entered;
  • the expected position of the code block if the correct code block is not received, it will enter the frame loss-of-lock state;
  • i, j, k are preset values.
  • each part of the device described above is divided into various modules or units by function and described respectively.
  • the functions of each module or unit may be implemented in one or more software or hardware.
  • a computer-readable storage medium where the computer-readable storage medium stores a computer program for executing the above-mentioned method for inserting and/or extracting the OAM at the sending end.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including, but not limited to, disk storage, optical storage, and the like.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

本公开公开了一种发送端运行、管理和维护插入、提取方法、设备及介质，包括：MTN路径层OAM采用码块承载；路径层OAM码块被插入到以N为标称周期的码块序列中。从N为标称周期的码块序列中提取路径层OAM码块。

Description

发送端运行、管理和维护插入、提取方法、设备及介质
相关申请的交叉引用
本申请主张在2020年8月28日在中国提交的中国专利申请号No.202010883893.4的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及无线通信技术领域，特别涉及一种发送端运行、管理和维护插入、提取方法、设备及介质。
背景技术
SPN(Slicing Packet Network，切片分组网)是主要面向城域综合业务承载的传送网技术机制，对移动前/中/回传、企事业专线/专网、家庭宽带上联等高质量要求的业务进行综合承载，具备在一张物理网络进行资源切片隔离，为多种业务提供差异化(如带宽、时延、抖动等)的业务承载服务能力。
SPN网络主要具有以下基本技术特征：
基于城域传送网通道(MTN path；MTN：城域传输网，Metro transport network)的端到端交叉连接：通过基于66B码块的序列交叉连接提供分组网络硬切片、低时延转发和带宽保障，通过MTN path层的端到端OAM(运行、管理和维护，Operations,Administration and Maintenance)和保护提供硬切片的电信级运维能力。
电信级故障检测和性能管理：具备网络级的分层OAM故障检测和性能管理能力，支持对网络中各逻辑层次、各类网络连接、各类业务通过OAM机制进行连通性、丢包率、时延和抖动等属性进行监测和管理。
SPN采用基于TDM(时分复用，Time Division Multiplexing)时隙的MTN Path和MTN Section(MTN切片)技术，为多业务承载提供基于L1的低时延、硬隔离切片通道，包括如下技术：
MTN Channel(MTN隧道)：50GE及以上的接口的以太网66B码块序列交叉连接(S-XC)的通道，实现端到端切片通道L1层组网。
S-XC：基于以太网66B码块序列的L1通道交叉技术。
MTN Path层及其OAM开销：50GE及以上的接口的以太网66B码块扩展，用OAM码块替换IDLE(空闲)码块，实现MTN Path层的OAM功能。
MTN Section层帧结构及其OAM开销：重用OIF FlexE(OIF弯曲E，OIF：光联网论坛，Optical Internet Forum)帧结构、子速率、绑定等功能逻辑的MTN段层网络接口及其告警和性能管理开销功能。
相关技术不足在于，如何插入OAM码块。
发明内容
本公开提供了一种发送端OAM插入、提取方法、设备及存储介质，用以解决如何插入OAM码块。
本公开提供以下技术方案：
一种发送端OAM插入方法，包括：
MTN路径层OAM采用码块承载；
路径层OAM码块被插入到以N为标称周期的码块序列中。
实施中，所述码块是64B/66B码块。
实施中，所述OAM码块被插入的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，进一步包括：
MTN路径层根据需要从所述码块序列中删除空闲块Idle Blocks用以补偿所述OAM码块的被插入。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，插入时的插入机会包括以下类型之一或者其组合：
第一类插入机会，所述第一类机会是插入路径状态和错误监视消息的机会；
第二类插入机会，所述第二类机会是插入APS消息的机会；
第三类插入机会，所述第三类机会是从低优先级消息插入块的机会。
实施中，进一步包括：
不对不可用的APS或低优先级消息使用插入机会。
实施中，所述第三类插入机会是以64个所述第三类插入机会为周期的。
实施中，在一个第三类插入机会周期中，按以下方式之一或者其组合发送消息：
CV消息在64个机会中的第1至17个分配的机会中发送；
CS消息在64个机会中的第18个机会发送；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中发送；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，1DM和2DMM消息是在有系统请求时发送的。
实施中，发送2DMR消息是用于响应接收到的2DMM消息的。
实施中，在预留的机会中不发送消息。
实施中，进一步包括：
按以下方式判断OAM码块锁定或失锁：
针对第一类插入机会，如果在预期位置找到连续i个连续的第一类插入机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类插入机会的消息，则进入帧失锁状态；
针对第三类插入机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
一种发送端OAM提取方法，包括：
MTN路径层OAM采用码块承载；
从N为标称周期的码块序列中提取路径层OAM码块。
实施中，所述码块是64B/66B码块。
实施中，所述OAM码块被提取的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，进一步包括：
MTN路径层根据需要从所述码块序列中插入空闲块Idle Blocks用以补偿所述OAM码块的提取。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，提取时的提取机会包括以下类型之一或者其组合：
第一类提取机会，所述第一类机会是提取路径状态和错误监视消息的机会；
第二类提取机会，所述第二类机会是提取APS消息的机会；
第三类提取机会，所述第三类机会是从低优先级消息提取块的机会。
实施中，进一步包括：
不对不可用的APS或低优先级消息进行提取。
实施中，所述第三类提取机会是以64个所述第三类提取机会为周期的。
实施中，在一个第三类提取机会周期中，按以下方式之一或者其组合接收消息：
CV消息在64个机会中的第1至17个分配的机会中接收；
CS消息在64个机会中的第18个机会接收；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中接收；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，1DM和2DMM消息是在有系统请求时接收的。
实施中，接收的2DMR消息是用于响应发送的2DMM消息的。
实施中，在预留的机会中不接收消息。
实施中，进一步包括：
按以下方式判断OAM码块锁定或失锁：
针对第一类提取机会，如果在预期位置找到连续i个连续的第一类提取机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类提取机会的消息，则进入帧失锁状态；
针对第三类提取机会，如果在连续k个CV消息的第一个码块的预期位 置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
一种通信设备，包括：
处理器，用于读取存储器中的程序，执行下列过程：
MTN路径层OAM采用码块承载；
路径层OAM码块被插入到以N为标称周期的码块序列中；
收发机，用于在处理器的控制下接收和发送数据。
实施中，所述码块是64B/66B码块。
实施中，所述OAM码块被插入的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，进一步包括：
MTN路径层根据需要从所述码块序列中删除空闲块Idle Blocks用以补偿所述OAM码块的被插入。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，插入时的插入机会包括以下类型之一或者其组合：
第一类插入机会，所述第一类机会是插入路径状态和错误监视消息的机会；
第二类插入机会，所述第二类机会是插入APS消息的机会；
第三类插入机会，所述第三类机会是从低优先级消息插入块的机会。
实施中，进一步包括：
不对不可用的APS或低优先级消息使用插入机会。
实施中，所述第三类插入机会是以64个所述第三类插入机会为周期的。
实施中，在一个第三类插入机会周期中，按以下方式之一或者其组合发送消息：
CV消息在64个机会中的第1至17个分配的机会中发送；
CS消息在64个机会中的第18个机会发送；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中发送；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，1DM和2DMM消息是在有系统请求时发送的。
实施中，发送2DMR消息是用于响应接收到的2DMM消息的。
实施中，在预留的机会中不发送消息。
实施中，进一步包括：
按以下方式判断OAM码块锁定或失锁：
针对第一类插入机会，如果在预期位置找到连续i个连续的第一类插入机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类插入机会的消息，则进入帧失锁状态；
针对第三类插入机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
一种通信设备，包括：
承载模块，用于MTN路径层OAM采用码块承载；
插入模块，用于路径层OAM码块被插入到以N为标称周期的码块序列中。
实施中，承载模块进一步用于采用64B/66B码块承载。
实施中，插入模块进一步用于将所述OAM码块被插入的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，插入模块进一步用于：
MTN路径层根据需要从所述码块序列中删除空闲块Idle Blocks用以补偿所述OAM码块的被插入。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，插入模块进一步用于插入时的插入机会包括以下类型之一或者其组合：
第一类插入机会，所述第一类机会是插入路径状态和错误监视消息的机会；
第二类插入机会，所述第二类机会是插入APS消息的机会；
第三类插入机会，所述第三类机会是从低优先级消息插入块的机会。
实施中，插入模块进一步用于不对不可用的APS或低优先级消息使用插入机会。
实施中，所述第三类插入机会是以64个所述第三类插入机会为周期的。
实施中，插入模块进一步用于在一个第三类插入机会周期中，按以下方式之一或者其组合发送消息：
CV消息在64个机会中的第1至17个分配的机会中发送；
CS消息在64个机会中的第18个机会发送；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中发送；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，插入模块进一步用于在有系统请求时发送1DM和2DMM消息。
实施中，插入模块进一步用于发送用于响应接收到的2DMM消息的2DMR消息。
实施中，插入模块进一步用于在预留的机会中不发送消息。
实施中，插入模块进一步用于按以下方式判断OAM码块锁定或失锁：
针对第一类插入机会，如果在预期位置找到连续i个连续的第一类插入机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类插入机会的消息，则进入帧失锁状态；
针对第三类插入机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
一种通信设备，包括：
处理器，用于读取存储器中的程序，执行下列过程：
MTN路径层OAM采用码块承载；
从N为标称周期的码块序列中提取路径层OAM码块；
收发机，用于在处理器的控制下接收和发送数据。
实施中，所述码块是64B/66B码块。
实施中，所述OAM码块被提取的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，进一步包括：
MTN路径层根据需要从所述码块序列中插入空闲块Idle Blocks用以补偿所述OAM码块的提取。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，提取时的提取机会包括以下类型之一或者其组合：
第一类提取机会，所述第一类机会是提取路径状态和错误监视消息的机会；
第二类提取机会，所述第二类机会是提取APS消息的机会；
第三类提取机会，所述第三类机会是从低优先级消息提取块的机会。
实施中，进一步包括：
不对不可用的APS或低优先级消息进行提取。
实施中，所述第三类提取机会是以64个所述第三类提取机会为周期的。
实施中，在一个第三类提取机会周期中，按以下方式之一或者其组合接收消息：
CV消息在64个机会中的第1至17个分配的机会中接收；
CS消息在64个机会中的第18个机会接收；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中接收；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，1DM和2DMM消息是在有系统请求时接收的。
实施中，接收的2DMR消息是用于响应发送的2DMM消息的。
实施中，在预留的机会中不接收消息。
实施中，进一步包括：
按以下方式判断OAM码块锁定或失锁：
针对第一类提取机会，如果在预期位置找到连续i个连续的第一类提取机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类提取机会的消息，则进入帧失锁状态；
针对第三类提取机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
一种通信设备，包括：
承载模块，用于MTN路径层OAM采用码块承载；
取出模块，用于从N为标称周期的码块序列中提取路径层OAM码块。
实施中，承载模块进一步用于采用64B/66B码块承载。
实施中，取出模块进一步用于将所述OAM码块被提取的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，取出模块进一步用于：
MTN路径层根据需要从所述码块序列中插入空闲块Idle Blocks用以补偿所述OAM码块的提取。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，取出模块进一步用于提取时的提取机会包括以下类型之一或者其组合：
第一类提取机会，所述第一类机会是提取路径状态和错误监视消息的机会；
第二类提取机会，所述第二类机会是提取APS消息的机会；
第三类提取机会，所述第三类机会是从低优先级消息提取块的机会。
实施中，取出模块进一步用于不对不可用的APS或低优先级消息进行提取。
实施中，所述第三类提取机会是以64个所述第三类提取机会为周期的。
实施中，取出模块进一步用于在一个第三类提取机会周期中，按以下方式之一或者其组合接收消息：
CV消息在64个机会中的第1至17个分配的机会中接收；
CS消息在64个机会中的第18个机会接收；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中接收；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，取出模块进一步用于在有系统请求时接收1DM和2DMM消息。
实施中，取出模块进一步用于接收用于响应发送的2DMM消息的2DMR消息。
实施中，取出模块进一步用于在预留的机会中不接收消息。
实施中，取出模块进一步用于按以下方式判断OAM码块锁定或失锁：
针对第一类提取机会，如果在预期位置找到连续i个连续的第一类提取机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类提取机会的消息，则进入帧失锁状态；
针对第三类提取机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
一种计算机可读存储介质，所述计算机可读存储介质存储有执行上述发送端OAM插入和/或取出方法的计算机程序。
本公开有益效果如下：
在本公开实施例提供的技术方案中，由于MTN路径层OAM采用码块承载，并且OAM码块被插入到以N为标称周期的码块序列中，因此解决了MTN网络传递各种OAM消息时的OAM码块插入问题。
进一步的还提供了不同种类的OAM消息的周期性插入机制。
进一步的还提供了两重锁定机制。
从而保证了MTN网络OAM机制的正确运行。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开实施例中发送端OAM插入方法实施流程示意图；
图2为本公开实施例中本公开实施例中MTNP OAM块插入示意图；
图3为本公开实施例中插入机会模式示意图；
图4为本公开实施例中插入机会的模式示意图；
图5为本公开实施例中发送端OAM提取方法实施流程示意图；
图6为本公开实施例中通信设备1结构示意图；
图7为本公开实施例中通信设备2结构示意图。
具体实施方式
发明人在发明过程中注意到：
现在没有方案可以解决以下问题之一：
如何插入OAM码块，如何以不同的优先级发送不同OAM消息，如何锁定和失锁等需要解决。
基于此，本公开实施例中提供了发送端OAM插入、提取方案。
下面结合附图对本公开的具体实施方式进行说明。
在说明过程中，将分别从插入端与提取端的实施进行说明，然后还将给出二者配合实施的实例以更好地理解本公开实施例中给出的方案的实施。这样的说明方式并不意味着二者必须配合实施、或者必须单独实施，实际上，当插入端与提取端分开实施时，其也各自解决自身一侧的问题，而二者结合使用时，会获得更好的技术效果。
一、发送端OAM插入机制的实施。
图1为发送端OAM插入方法实施流程示意图，如图所示，可以包括：
步骤101、MTN路径层OAM采用码块承载；
步骤102、路径层OAM码块被插入到以N为标称周期的码块序列中。
实施中，所述码块是64B/66B码块。
具体的，MTN(城域传输网，Metro transport network)路径层OAM(运行、管理和维护，Operations,Administration and Maintenance)采用64B/66B码块承载，路径层OAM码块被插入到以N为标称周期的64B/66B码块序列中。
所述OAM码块插入的位置位于报文间隙IPG(帧间距，Interframe Gap)；
所述N＝nx16k，n为该路径所占的日历时隙数；其中，日历时隙可以为5Gbps。
MTN路径层根据需要从所述码块序列中删除空闲块(Idle Blocks)用以补偿所述OAM码块的被插入。
具体的，MTN路径层根据需要从所述64B/66B码块序列中删除空闲块(Idle Blocks)以补偿路径层OAM的插入；
所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块(Ordered Set block)。
也即，Path OAM insertion(路径OAM插入)
Path OAM blocks are inserted into the client block sequence with a nominal period of n×16K blocks,where n is the number of 5 Gbit/s calendar slots that the path occupies.The actual insertion of each OAM block is delayed from the nominal insertion point so that the OAM block falls in the interpacket gap as shown in figure 2 Delaying insertion of a block does not change the nominal insertion point of the next block.Idle blocks are removed as necessary from the client block sequence to compensate for the insertion of the path OAM.Figure2 MTNP OAM block insertion illustration。(路径OAM块以n×16K个块的名义周期插入到客户机块序列中，其中n是路径占用的5gbit/s日历槽数。每个OAM块的实际插入从标称插入点延迟，因此OAM块落在包间间隙中，如图2所示。延迟插入一个块不会改变下一个块的标称插入点。根据需要从客户端块 序列中移除空闲块，以补偿路径OAM的插入。图2为MTNP OAM块插入示意图。)
实施中，插入时的插入机会包括以下类型之一或者其组合：
第一类插入机会，所述第一类机会是插入路径状态和错误监视消息的机会；
第二类插入机会，所述第二类机会是插入APS消息的机会；
第三类插入机会，所述第三类机会是从低优先级消息插入块的机会。
具体的，图3为插入机会模式示意图，如图所示，所述插入机制遵循一个规律的插入机会机制，该机制将插入的机会分为三类，第一类，第二类和第三类。插入的方式如图3所示，B(第一类)表示路径状态和错误监视消息，A(第二类)表示插入APS(自动保护倒换，Automatic Protection Switch)消息的机会，L(第三类)表示从低优先级消息插入块(如果有)的机会。
实施中，还可以进一步包括：
不对不可用的APS或低优先级消息使用插入机会。
具体的，如果APS或低优先级消息不可用，则这些商机中不会传输任何消息。
也即，The insertion follows a regular pattern of opportunities as shown in figure4.B represents a path status and error monitoring message,A represents an opportunity to insert an APS message,and L represents an opportunity to insert a block from a low priority message if one is available.If an APS or low priority message is not available,nothing is transmitted in those opportunities.Figure 4 Pattern of insertion opportunities)(插入遵循图4所示的常规机会模式。B表示路径状态和错误监视消息，a表示插入APS消息的机会，L表示从低优先级消息插入块的机会(如果有)。如果APS或低优先级消息不可用，则在这些机会中不会传输任何内容。图4为插入机会的模式示意图。)
实施中，所述第三类插入机会是以64个所述第三类插入机会为周期的。
实施中，在一个第三类插入机会周期中，按以下方式之一或者其组合发送消息：
CV消息在64个机会中的第1至17个分配的机会中发送；
CS消息在64个机会中的第18个机会发送；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中发送；
在64个机会中的第32至64个机会是预留的Reserved。
具体的，所述第三类消息，遵循一个规律的插入机会机制，以64个第三类插入机会为周期。插入机会分配见下表1：
表1
Figure PCTCN2021114763-appb-000001
CV(连接验证，Connectivity Verification)和CS(能力集，Capability Set)消息会在每一个上表中分配的机会中发送。
1DM(单项时延测量，one way delay measurement)和2DMM(双向时延测量消息，two way delay measurement message)消息，仅在有系统请求时发送。
2DMR(双向时延测量响应，two way delay measurement response)消息发送是响应接收到的2DMM消息。
在预留的机会中不发送任何消息。
也即，The sequence of low priority opportunities follows a regular pattern of 64 opportunities,as shown in Table 1.This results in an overall cycle of 256 OAM blocks.(低优先级机会的顺序遵循64个机会的常规模式，如表1所示。这将导致256个OAM块的总周期。)
The CV and CS messages are sent at every opportunity.1DM and 2DMM messages are sent when requested by the management system.2DMR messages are sent in response to receiving a 2DMM message.(每次有机会都会发送CV和CS消息。当管理系统请求时，发送1DM和2DMM消息。发送2DMR消息 以响应接收2DMM消息)
Nothing is sent in the reserved opportunities.(在保留的机会中没有发送任何内容)
The use of a regular pattern of opportunities enables the receiver to synchronize to the pattern and know what type of OAM block to expect.(使用常规的机会模式可以使接收器与模式同步，并知道预期的OAM块类型)
Two levels of frame lock are defined.The first level is alignment with the high-level pattern shown in Figure 2.The in-frame state is entered if 2 consecutive path status and error monitoring messages are found in the expected location.The out of frame state is entered if a path status and error monitoring message is not found in 5 consecutive expected locations.(定义了两个级别的帧锁定。第一个层次与图2所示的高层模式相一致。如果在预期位置发现两个连续的路径状态和错误监视消息，则进入帧内状态。如果在5个连续的预期位置中未找到路径状态和错误监视消息，则进入帧外状态)
The second level of alignment is to the low priority opportunities.The in-frame state is entered if the first block of the CV message is found in the expected position 2 consecutive cycles of 256 OAM blocks.The out of frame state is entered if the first block of the CV message is not found in the expected position in 3 consecutive cycles of 256 OAM blocks.(第二个层次的调整是针对低优先级的机会。如果在256个OAM块的预期位置2个连续循环中找到CV消息的第一个块，则进入帧内状态。如果在256个OAM块的连续3个周期中，在预期位置未找到CV消息的第一个块，则进入帧外状态)
实施中，还可以进一步包括：
按以下方式判断OAM码块锁定或失锁：
针对第一类插入机会，如果在预期位置找到连续i个连续的第一类插入机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类插入机会的消息，则进入帧失锁状态；
针对第三类插入机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第 一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
具体的，对于OAM帧锁定/失锁判断机制可以如下：
两级帧锁定机制：
第一级，针对第一类插入机会，如果在预期位置找到连续i个连续的第一类插入机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类插入机会的消息，则进入帧失锁状态。
第二级，针对第三类插入机会。如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态。
二、发送端OAM提取机制的实施。
路径OAM基于具有O代码＝0xC的有序集而识别。匹配此特征的块从接收的块序列中提取，并作为OAM块处理。为了补偿已删除的OAM块，将空闲块插入到块序列中，以保持时钟不变。下面进行说明。
图5为发送端OAM提取方法实施流程示意图，如图所示，可以包括：
步骤501、MTN路径层OAM采用码块承载；
步骤502、从N为标称周期的码块序列中提取路径层OAM码块。
实施中，所述码块是64B/66B码块。
也即，Path OAM extraction(路径OAM提取)
The path OAM is recognized based on the block being an ordered set with O-code 0xC.Blocks matching this signature are extracted from the received block sequence and processed as OAM blocks.To compensate for the removed OAM blocks,Idle blocks are inserted into the block sequence to maintain the same clock.(路径OAM根据块是O代码0xC的有序集进行识别。与此签名匹配的块从接收到的块序列中提取并作为OAM块处理。为了补偿被移除的OAM块，空闲块被插入到块序列中以保持相同的时钟。)
实施中，所述OAM码块被提取的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，进一步包括：
MTN路径层根据需要从所述码块序列中插入空闲块Idle Blocks用以补偿所述OAM码块的提取。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，提取时的提取机会包括以下类型之一或者其组合：
第一类提取机会，所述第一类机会是提取路径状态和错误监视消息的机会；
第二类提取机会，所述第二类机会是提取APS消息的机会；
第三类提取机会，所述第三类机会是从低优先级消息提取块的机会。
实施中，进一步包括：
不对不可用的APS或低优先级消息进行提取。
实施中，所述第三类提取机会是以64个所述第三类提取机会为周期的。
实施中，在一个第三类提取机会周期中，按以下方式之一或者其组合接收消息：
CV消息在64个机会中的第1至17个分配的机会中接收；
CS消息在64个机会中的第18个机会接收；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中接收；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，1DM和2DMM消息是在有系统请求时接收的。
实施中，接收的2DMR消息是用于响应发送的2DMM消息的。
实施中，在预留的机会中不接收消息。
实施中，进一步包括：
按以下方式判断OAM码块锁定或失锁：
针对第一类提取机会，如果在预期位置找到连续i个连续的第一类提取机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类提取机会的消息，则进入帧失锁状态；
针对第三类提取机会，如果在连续k个CV消息的第一个码块的预期位 置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
基于同一发明构思，本公开实施例中还提供了一种通信设备、及计算机可读存储介质，由于这些设备解决问题的原理与发送端OAM插入方法、发送端OAM取出方法相似，因此这些设备的实施可以参见方法的实施，重复之处不再赘述。
在实施本公开实施例提供的技术方案时，可以按如下方式实施。
图6为通信设备1结构示意图，如图所示，基站中包括：
处理器600，用于读取存储器620中的程序，执行下列过程：
MTN路径层OAM采用码块承载；
路径层OAM码块被插入到以N为标称周期的码块序列中；
收发机610，用于在处理器600的控制下接收和发送数据。
实施中，所述码块是64B/66B码块。
实施中，所述OAM码块被插入的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，进一步包括：
MTN路径层根据需要从所述码块序列中删除空闲块Idle Blocks用以补偿所述OAM码块的被插入。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，插入时的插入机会包括以下类型之一或者其组合：
第一类插入机会，所述第一类机会是插入路径状态和错误监视消息的机会；
第二类插入机会，所述第二类机会是插入APS消息的机会；
第三类插入机会，所述第三类机会是从低优先级消息插入块的机会。
实施中，进一步包括：
不对不可用的APS或低优先级消息使用插入机会。
实施中，所述第三类插入机会是以64个所述第三类插入机会为周期的。
实施中，在一个第三类插入机会周期中，按以下方式之一或者其组合发送消息：
CV消息在64个机会中的第1至17个分配的机会中发送；
CS消息在64个机会中的第18个机会发送；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中发送；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，1DM和2DMM消息是在有系统请求时发送的。
实施中，发送2DMR消息是用于响应接收到的2DMM消息的。
实施中，在预留的机会中不发送消息。
实施中，进一步包括：
按以下方式判断OAM码块锁定或失锁：
针对第一类插入机会，如果在预期位置找到连续i个连续的第一类插入机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类插入机会的消息，则进入帧失锁状态；
针对第三类插入机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
其中，在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器600负责管理总线架构和通常的处理，存储器620可以存储处理器600在执行操作时所使用的数据。
本公开实施例中提供了一种通信设备，包括：
承载模块，用于MTN路径层OAM采用码块承载；
插入模块，用于路径层OAM码块被插入到以N为标称周期的码块序列中。
实施中，承载模块进一步用于采用64B/66B码块承载。
实施中，插入模块进一步用于将所述OAM码块被插入的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，插入模块进一步用于：
MTN路径层根据需要从所述码块序列中删除空闲块Idle Blocks用以补偿所述OAM码块的被插入。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，插入模块进一步用于插入时的插入机会包括以下类型之一或者其组合：
第一类插入机会，所述第一类机会是插入路径状态和错误监视消息的机会；
第二类插入机会，所述第二类机会是插入APS消息的机会；
第三类插入机会，所述第三类机会是从低优先级消息插入块的机会。
实施中，插入模块进一步用于不对不可用的APS或低优先级消息使用插入机会。
实施中，所述第三类插入机会是以64个所述第三类插入机会为周期的。
实施中，插入模块进一步用于在一个第三类插入机会周期中，按以下方式之一或者其组合发送消息：
CV消息在64个机会中的第1至17个分配的机会中发送；
CS消息在64个机会中的第18个机会发送；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中发送；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，插入模块进一步用于在有系统请求时发送1DM和2DMM消息。
实施中，插入模块进一步用于发送用于响应接收到的2DMM消息的2DMR消息。
实施中，插入模块进一步用于在预留的机会中不发送消息。
实施中，插入模块进一步用于按以下方式判断OAM码块锁定或失锁：
针对第一类插入机会，如果在预期位置找到连续i个连续的第一类插入机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类插入机会的消息，则进入帧失锁状态；
针对第三类插入机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
为了描述的方便，以上所述装置的各部分以功能分为各种模块或单元分别描述。当然，在实施本公开时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。
图7为通信设备2结构示意图，如图所示，基站中包括：
处理器700，用于读取存储器720中的程序，执行下列过程：
MTN路径层OAM采用码块承载；
从N为标称周期的码块序列中提取路径层OAM码块；
收发机710，用于在处理器700的控制下接收和发送数据。
实施中，所述码块是64B/66B码块。
实施中，所述OAM码块被提取的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，进一步包括：
MTN路径层根据需要从所述码块序列中插入空闲块Idle Blocks用以补偿所述OAM码块的提取。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，提取时的提取机会包括以下类型之一或者其组合：
第一类提取机会，所述第一类机会是提取路径状态和错误监视消息的机会；
第二类提取机会，所述第二类机会是提取APS消息的机会；
第三类提取机会，所述第三类机会是从低优先级消息提取块的机会。
实施中，进一步包括：
不对不可用的APS或低优先级消息进行提取。
实施中，所述第三类提取机会是以64个所述第三类提取机会为周期的。
实施中，在一个第三类提取机会周期中，按以下方式之一或者其组合接收消息：
CV消息在64个机会中的第1至17个分配的机会中接收；
CS消息在64个机会中的第18个机会接收；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中接收；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，1DM和2DMM消息是在有系统请求时接收的。
实施中，接收的2DMR消息是用于响应发送的2DMM消息的。
实施中，在预留的机会中不接收消息。
实施中，进一步包括：
按以下方式判断OAM码块锁定或失锁：
针对第一类提取机会，如果在预期位置找到连续i个连续的第一类提取机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类提取机会的消息，则进入帧失锁状态；
针对第三类提取机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
其中，在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器700代表的一个或多个处理器和存储器720代表的存储器的各种电 路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机710可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器700负责管理总线架构和通常的处理，存储器720可以存储处理器700在执行操作时所使用的数据。
本公开实施例中还提供了一种通信设备，包括：
承载模块，用于MTN路径层OAM采用码块承载；
取出模块，用于从N为标称周期的码块序列中提取路径层OAM码块。
实施中，承载模块进一步用于采用64B/66B码块承载。
实施中，取出模块进一步用于将所述OAM码块被提取的位置位于报文间隙IPG。
实施中，所述N＝n*16k，n为该路径所占的日历时隙数。
实施中，所述日历时隙为5Gbps。
实施中，取出模块进一步用于：
MTN路径层根据需要从所述码块序列中插入空闲块Idle Blocks用以补偿所述OAM码块的提取。
实施中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
实施中，取出模块进一步用于提取时的提取机会包括以下类型之一或者其组合：
第一类提取机会，所述第一类机会是提取路径状态和错误监视消息的机会；
第二类提取机会，所述第二类机会是提取APS消息的机会；
第三类提取机会，所述第三类机会是从低优先级消息提取块的机会。
实施中，取出模块进一步用于不对不可用的APS或低优先级消息进行提取。
实施中，所述第三类提取机会是以64个所述第三类提取机会为周期的。
实施中，取出模块进一步用于在一个第三类提取机会周期中，按以下方 式之一或者其组合接收消息：
CV消息在64个机会中的第1至17个分配的机会中接收；
CS消息在64个机会中的第18个机会接收；
1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中接收；
在64个机会中的第32至64个机会是预留的Reserved。
实施中，取出模块进一步用于在有系统请求时接收1DM和2DMM消息。
实施中，取出模块进一步用于接收用于响应发送的2DMM消息的2DMR消息。
实施中，取出模块进一步用于在预留的机会中不接收消息。
实施中，取出模块进一步用于按以下方式判断OAM码块锁定或失锁：
针对第一类提取机会，如果在预期位置找到连续i个连续的第一类提取机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类提取机会的消息，则进入帧失锁状态；
针对第三类提取机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
其中，i、j、k为预设的值。
为了描述的方便，以上所述装置的各部分以功能分为各种模块或单元分别描述。当然，在实施本公开时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。
一种计算机可读存储介质，所述计算机可读存储介质存储有执行上述发送端OAM插入和/或取出方法的计算机程序。
具体实施可以参见发送端OAM插入方法和/或发送端OAM插入取出方法的实施。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘 存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (35)

  1. 一种发送端运行、管理和维护OAM插入方法，包括：
    城域传输网MTN路径层OAM采用码块承载；
    路径层OAM码块被插入到以N为标称周期的码块序列中。
  2. 如权利要求1所述的方法，其中，所述码块是64B/66B码块。
  3. 如权利要求1所述的方法，其中，所述OAM码块被插入的位置位于报文间隙帧间距IPG。
  4. 如权利要求1所述的方法，其中，所述N＝n*16k，n为该路径所占的日历时隙数。
  5. 如权利要求4所述的方法，其中，所述日历时隙为5Gbps。
  6. 如权利要求1所述的方法，进一步包括：
    MTN路径层根据需要从所述码块序列中删除空闲块Idle Blocks用以补偿所述OAM码块的被插入。
  7. 如权利要求1至6任一所述的方法，其中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
  8. 如权利要求1所述的方法，其中，插入时的插入机会包括以下类型之一或者其组合：
    第一类插入机会，所述第一类机会是插入路径状态和错误监视消息的机会；
    第二类插入机会，所述第二类机会是插入自动保护倒换APS消息的机会；
    第三类插入机会，所述第三类机会是从低优先级消息插入块的机会。
  9. 如权利要求8所述的方法，进一步包括：
    不对不可用的APS或低优先级消息使用插入机会。
  10. 如权利要求8所述的方法，其中，所述第三类插入机会是以64个所述第三类插入机会为周期的。
  11. 如权利要求10所述的方法，其中，在一个第三类插入机会周期中，按以下方式之一或者其组合发送消息：
    连接验证CV消息在64个机会中的第1至17个分配的机会中发送；
    能力集CS消息在64个机会中的第18个机会发送；
    单项时延测量1DM或双向时延测量消息2DMM或双向时延测量响应2DMR消息在64个机会中的第19至31个分配的机会中发送；
    在64个机会中的第32至64个机会是预留的保留Reserved。
  12. 如权利要求11所述的方法，其中，1DM和2DMM消息是在有系统请求时发送的。
  13. 如权利要求11所述的方法，其中，发送2DMR消息是用于响应接收到的2DMM消息的。
  14. 如权利要求11所述的方法，其中，在预留的机会中不发送消息。
  15. 如权利要求11所述的方法，进一步包括：
    按以下方式判断OAM码块锁定或失锁：
    针对第一类插入机会，如果在预期位置找到连续i个连续的第一类插入机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类插入机会的消息，则进入帧失锁状态；
    针对第三类插入机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
    其中，i、j、k为预设的值。
  16. 一种发送端OAM提取方法，包括：
    MTN路径层OAM采用码块承载；
    从N为标称周期的码块序列中提取路径层OAM码块。
  17. 如权利要求16所述的方法，其中，所述码块是64B/66B码块。
  18. 如权利要求16所述的方法，其中，所述OAM码块被提取的位置位于报文间隙IPG。
  19. 如权利要求16所述的方法，其中，所述N＝n*16k，n为该路径所占的日历时隙数。
  20. 如权利要求19所述的方法，其中，所述日历时隙为5Gbps。
  21. 如权利要求16所述的方法，进一步包括：
    MTN路径层根据需要从所述码块序列中插入空闲块Idle Blocks用以补偿 所述OAM码块的提取。
  22. 如权利要求16至21任一所述的方法，其中，所述OAM码块，采用Type＝0x4B,O code＝0xC的有序集码块Ordered Set block。
  23. 如权利要求16所述的方法，其中，提取时的提取机会包括以下类型之一或者其组合：
    第一类提取机会，所述第一类机会是提取路径状态和错误监视消息的机会；
    第二类提取机会，所述第二类机会是提取APS消息的机会；
    第三类提取机会，所述第三类机会是从低优先级消息提取块的机会。
  24. 如权利要求23所述的方法，进一步包括：
    不对不可用的APS或低优先级消息进行提取。
  25. 如权利要求23所述的方法，其中，所述第三类提取机会是以64个所述第三类提取机会为周期的。
  26. 如权利要求25所述的方法，其中，在一个第三类提取机会周期中，按以下方式之一或者其组合接收消息：
    CV消息在64个机会中的第1至17个分配的机会中接收；
    CS消息在64个机会中的第18个机会接收；
    1DM或2DMM或2DMR消息在64个机会中的第19至31个分配的机会中接收；
    在64个机会中的第32至64个机会是预留的Reserved。
  27. 如权利要求26所述的方法，其中，1DM和2DMM消息是在有系统请求时接收的。
  28. 如权利要求26所述的方法，其中，接收的2DMR消息是用于响应发送的2DMM消息的。
  29. 如权利要求26所述的方法，其中，在预留的机会中不接收消息。
  30. 如权利要求26所述的方法，进一步包括：
    按以下方式判断OAM码块锁定或失锁：
    针对第一类提取机会，如果在预期位置找到连续i个连续的第一类提取机会的消息，则进入帧锁定状态；如果在连续j个预计位置中找不到第一类 提取机会的消息，则进入帧失锁状态；
    针对第三类提取机会，如果在连续k个CV消息的第一个码块的预期位置，能收到正确的码块，则进入帧锁定状态；如果在连续的l个CV消息的第一个码块的预期位置，未能收到正确的码块，则进入帧失锁状态；
    其中，i、j、k为预设的值。
  31. 一种通信设备，包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    MTN路径层OAM采用码块承载；
    路径层OAM码块被插入到以N为标称周期的码块序列中；
    收发机，用于在处理器的控制下接收和发送数据。
  32. 一种通信设备，包括：
    承载模块，用于MTN路径层OAM采用码块承载；
    插入模块，用于路径层OAM码块被插入到以N为标称周期的码块序列中。
  33. 一种通信设备，包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    MTN路径层OAM采用码块承载；
    从N为标称周期的码块序列中提取路径层OAM码块；
    收发机，用于在处理器的控制下接收和发送数据。
  34. 一种通信设备，包括：
    承载模块，用于MTN路径层OAM采用码块承载；
    取出模块，用于从N为标称周期的码块序列中提取路径层OAM码块。
  35. 一种计算机可读存储介质，所述计算机可读存储介质存储有执行权利要求1至30任一所述方法的计算机程序。
PCT/CN2021/114763 2020-08-28 2021-08-26 发送端运行、管理和维护插入、提取方法、设备及介质 WO2022042647A1 (zh)

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