CN102130841B - Physical layer operations, administration and maintenance (PLOAM) message transmission method and device - Google Patents
Physical layer operations, administration and maintenance (PLOAM) message transmission method and device Download PDFInfo
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- CN102130841B CN102130841B CN201010000342.5A CN201010000342A CN102130841B CN 102130841 B CN102130841 B CN 102130841B CN 201010000342 A CN201010000342 A CN 201010000342A CN 102130841 B CN102130841 B CN 102130841B
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- 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
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
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Abstract
The invention discloses a physical layer operations, administration and maintenance (PLOAM) message transmission method and a PLOAM message transmission device. The method comprises the following steps of: an upper-layer network element obtains the number N of PLOAM messages which can be transmitted to a lower-layer network element in a downlink frame; the upper-layer network element acquires the PLOAM messages according to the number of the PLOAM messages; and the upper-layer network element transmits the acquired PLOAM messages to the lower-layer network element in the downlink frame. By the technical scheme provided by the invention, the number of the PLOAM messages which can be transmitted to the same lower-layer network element in the downlink frame can be ensured to be smaller than the maximum number of the PLOAM messages which can be processed by an optical network unit (ONU).
Description
Technical field
The present invention relates to the communications field, in particular to a kind of sending method and device of PLOAM message.
Background technology
Gigabit passive optical network (Gigabit-Capable Passive Optical Network, referred to as GPON) technology is an important technology branch in EPON (PON) family, with other PON technology type seemingly, GPON is also a kind of passive light access technology adopting point-to-multipoint topological structure.
GPON is by optical line terminal (the Optical Line Terminal of office side, referred to as OLT), optical network unit (the Optical Network Unit of user side, referred to as ONU) and Optical Distribution Network (Optical Distribution Network, referred to as ODN) composition, usually adopt point-to-multipoint network configuration.ODN is made up of, for the physical connection between OLT and ONU provides light-transmitting medium Passive Optical Components such as monomode fiber, optical branching device, optical connectors.
In order to realize the part management function of OLT to ONU, G.984.3 the standard definition of ITU-T physical layer operations management maintenance (Physical layer Operations, Administration and Maintenance, be called for short PLOAM) passage, GPON utilizes PLOAM channel transfer PLOAM message, realizes the management to transmission convergence layer, comprise ONU to activate, ONU manages the foundation of control channel, encryption configuration, key management etc.In GPON system, PLOAM message is transmission in uplink frame (ONU sends to the frame of OLT) and downlink frame (OLT sends to the frame of ONU), comprise a PLOAM message in each downlink frame, OLT determines whether comprise PLOAM message in uplink frame.Based in the PON system of future generation of GPON technology, due to the raising of transmission rate, and an OLT needs to support more ONU, therefore, ites is desirable in a downlink frame, send multiple PLOAM message.Meanwhile, consider the disposal ability of ONU to PLOAM message in a downlink frame, need the maximum number sending to the PLOAM message of same ONU in restriction downlink frame.At existing GPON Transmission Convergence (GPON transmissionconverge, be called for short GTC) layer frame forming tech in, GTC framing module directly takes out PLOAM message composition GTC frame according to the principle of first in first out (FIFO) from the queue of depositing PLOAM message, thus, when above-mentioned frame forming tech being applied in the PON system of future generation based on GPON technology, the maximum PLOAM message number that can not ensure to send to the number of the PLOAM message of same ONU to be less than or equal to ONU in a downlink frame and can process.
Summary of the invention
The number of the PLOAM message of same lower network element is sent to be less than or equal to the problem of the maximum PLOAM message number that this lower network element can process in a downlink frame for not ensureing in correlation technique, the invention provides a kind of sending method and device of PLOAM message, to solve the problem one of at least.
According to an aspect of the present invention, a kind of sending method of PLOAM message is provided.
Sending method according to PLOAM message of the present invention comprises: upper layer network element is informed in the number N of the PLOAM message that can be sent to lower network element in a downlink frame, wherein, in PLOAM message, the number of the PLOAM message to each lower network element to be sent is all less than or equal to the maximum number m that this lower network element can process PLOAM message, N >=1, m > 0; Upper layer network element obtains PLOAM message according to the number of PLOAM message, wherein, the number x of the PLOAM message obtained is less than or equal to the number N of PLOAM message, the number a of the PLOAM message of the same lower network element of correspondence obtained is less than or equal to the maximum number m that this lower network element can process PLOAM message, x >=0, a >=0; Upper layer network element sends the PLOAM message obtained in a downlink frame to lower network element.
According to a further aspect in the invention, a kind of dispensing device of PLOAM message is provided.
Dispensing device according to PLOAM message of the present invention comprises: know unit, for being informed in the number N of the PLOAM message that can be sent to lower network element in a downlink frame, wherein, in PLOAM message, the number of the PLOAM message to each lower network element to be sent is all less than or equal to the maximum number m that this lower network element can process PLOAM message, N >=1, m > 0; Acquiring unit, PLOAM message is obtained for the number according to PLOAM message, wherein, the number x of the PLOAM message obtained is less than or equal to the number N of PLOAM message, the number a of the PLOAM message of the same lower network element of correspondence obtained is less than or equal to the maximum number m that this lower network element can process PLOAM message, x >=0, a >=0; Transmitting element, for sending the PLOAM message obtained in a downlink frame to lower network element.
Pass through the present invention, upper layer network element obtains PLOAM message according to the number of the PLOAM message that can be sent to lower network element, and be sent to lower network element, under the prerequisite of layer network element disposal ability under consideration, the maximum PLOAM message number that can ensure to send to the number of the PLOAM message of same lower network element to be less than or equal to this ONU in a downlink frame and can process.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart of the dispensing device of PLOAM message according to the embodiment of the present invention;
Fig. 2 is the structured flowchart of the dispensing device of PLOAM message according to the preferred embodiment of the invention;
Fig. 3 is the structured flowchart of the dispensing device of PLOAM message according to example one of the present invention;
Fig. 4 is the structured flowchart of the dispensing device of PLOAM message according to example two of the present invention;
Fig. 5 is the structured flowchart of the dispensing device of PLOAM message according to example three of the present invention;
Fig. 6 is the flow chart of the sending method of PLOAM message according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 1 is the structured flowchart of the dispensing device of PLOAM message according to the embodiment of the present invention.As shown in Figure 1, comprise according to the dispensing device of the PLOAM message of the embodiment of the present invention: know unit 1, acquiring unit 2, transmitting element 3.
Know unit 1, for being informed in the number N of the PLOAM message that can be sent to lower network element in a downlink frame, wherein, in PLOAM message, the number of the PLOAM message to each lower network element to be sent is all less than or equal to the maximum number m that this lower network element can process PLOAM message, N >=1, m > 0;
Acquiring unit 2, PLOAM message is obtained for the number according to PLOAM message, wherein, the PLOAM message number x obtained is less than or equal to the number N of PLOAM message, the number a of the PLOAM message of the same lower network element of correspondence obtained is less than or equal to the maximum number m that this lower network element can process PLOAM message, x >=0, a >=0;
Transmitting element 3, for sending the PLOAM message obtained in a downlink frame to lower network element.
Said apparatus is adopted to send PLOAM message, layer network element (such as under consideration, under the prerequisite of ONU) disposal ability, the maximum PLOAM message number that can ensure to send to the number of the PLOAM message of same lower network element to be less than or equal to this lower network element in a downlink frame and can process.
Wherein, above-mentioned PLOAM message comprises: clean culture PLOAM message, and/or, broadcast PLOAM message.
Preferably, as shown in Figure 2, said apparatus can also comprise: the first memory cell 4, be connected to and know between unit 1 and acquiring unit 2, for will produce the clean culture PLOAM message stores default register that layer network element is corresponding in each of the lower in, and by produce broadcast PLOAM message stores in PLOAM message queue.
Preferably, as shown in Figure 2, above-mentioned acquiring unit 2 can comprise: the first extraction module 20, for when Preset Time arrives, extracts clean culture PLOAM message from the default register that each lower network element is corresponding; First memory module 21, for will extract clean culture PLOAM message stores in PLOAM message queue; Second extraction module 22, for extracting PLOAM message from PLOAM message queue.
Below in conjunction with Fig. 3, said apparatus is described.Fig. 3 is the structured flowchart of the dispensing device of PLOAM message according to example one of the present invention.As shown in Figure 3, comprise according to the dispensing device of the PLOAM message of example one of the present invention: PLOAM message generating unit, a S register (S is the numerical value corresponding with lower network element number), timer, extraction unit (being equivalent to the first extraction module, the first memory module), PLOAM message queue, frame unit (being equivalent to the second extraction module).
OLT needs the individual PLOAM message of N (N >=1) that can be sent to lower network element in a downlink frame, and the maximum number of the PLOAM message of sending in a downlink frame each ONU is m (m >=1).At OLT place, set up one for depositing the register of PLOAM message for each ONU in advance.
After PLOAM message generating unit produces a PLOAM message, if this PLOAM message belongs to an ONU, then OLT by this PLOAM message deposit in the register of corresponding ONU; If this PLOAM message is a broadcast PLOAM message, then this PLOAM message is directly put into PLOAM message queue by OLT.OLT place arranges a timer and an extraction unit, the timing of this set timer be T (such as, T >=125 μ s), when timer overflows, this timer is started from scratch timing, and this Timer Controlling extraction unit circulates successively (or successively) takes out L PLOAM message and puts into PLOAM message queue from the component register of each ONU corresponding, and the PLOAM message number of taking out in each register is less than or equal to m.
Frame unit, when a composition downlink frame, can comprise following process:
Frame unit takes out PLOAM message successively from PLOAM message queue, does not comprise broadcast PLOAM message if taken out continuously in N number of PLOAM message, then GTC frame unit is by this N number of PLOAM message composition downlink frame; If GTC frame unit takes out a broadcast PLOAM message from PLOAM message queue, if OLT has taken out part PLOAM message before this broadcast PLOAM message, the then one or more PLOAM message composition downlink frame that will take out before broadcast PLOAM message of GTC frame unit, and this broadcast PLOAM message is left in separately in next downlink frame form downlink frame; If it is a broadcast PLOAM message that GTC frame unit takes out first PLOAM message from PLOAM message queue, then this broadcast PLOAM message is placed in downlink frame separately and forms downlink frame.
From said process, the clean culture PLOAM message extracted from PLOAM message queue sends by dispensing device in a downlink frame; Extract from PLOAM message queue a broadcast PLOAM message is sent separately in a downlink frame.
Frame unit, when a composition downlink frame, can also comprise following process:
Frame unit takes out PLOAM message successively from PLOAM message queue, does not comprise broadcast PLOAM message if taken out continuously in N number of PLOAM message, then GTC frame unit is by this N number of PLOAM message composition downlink frame; If GTC frame unit takes out a broadcast PLOAM message from PLOAM message queue, then this broadcast PLOAM message is formed a downlink frame with the clean culture PLOAM message (can also comprise: the clean culture PLOAM message of taking out afterwards) of taking out before to send, wherein, PLOAM message number to each lower network element to be sent, demand fulfillment is less than or equal to the condition that this lower network element can process the maximum number of PLOAM message.
From said process, the clean culture PLOAM message extracted from PLOAM message queue and a broadcast PLOAM message can also send by dispensing device in a downlink frame.
Preferably, said apparatus can also comprise: comparing unit 5, for being compared by the identification information of lower network element corresponding with the PLOAM message in PLOAM message queue for the PLOAM message of generation; Judging unit 6, for according to comparative result, the identification information determining whether to exist in PLOAM message queue the identification information of lower network element corresponding to m the PLOAM message lower network element corresponding with the PLOAM message of generation is consistent; Second memory cell 7, for when judging unit output is for being, presetting in the first register by the PLOAM message stores produced, exporting as no, by the PLOAM message stores of generation in PLOAM message queue at judging unit.
Then acquiring unit 2 can also comprise: comparison module 23, and for when Preset Time arrives, whether the identification information comparing each PLOAM message in the first register lower network element corresponding with the PLOAM message in PLOAM message queue is consistent; First judge module 24, identical with the identification information of the corresponding lower network element of PLOAM message in described first register for determining whether there is p PLOAM message in PLOAM message queue, wherein, 0≤p < m; Second memory module 25, for when the first judge module exports as being, PLOAM message extraction identical with the identification information of described p the lower network element that PLOAM message is corresponding in first register is deposited in PLOAM message queue, wherein, the PLOAM message number that the mark in the PLOAM message queue after depositing is identical is less than or equal to m; 3rd extraction module 26, for extracting PLOAM message from PLOAM message queue.
Be described said apparatus below in conjunction with Fig. 4, Fig. 4 is the structured flowchart of the dispensing device of PLOAM message according to example two of the present invention.As shown in Figure 4, comprise according to the dispensing device of the PLOAM message of example two of the present invention: PLOAM message generating unit, comparing unit, register (being equivalent to the first register), extraction comparison unit (being equivalent to above-mentioned comparison module, the first judge module, the second memory module), timer, PLOAM message queue, frame unit (being equivalent to the 3rd extraction module).
OLT needs in a downlink frame, send the individual PLOAM message of N (N >=1), and the maximum number of the PLOAM message of sending in a downlink frame each ONU is m (m >=1).At OLT place, need to pre-set a register.
At OLT place, after PLOAM message generating unit produces a PLOAM, the ONU-ID of all PLOAM message in ONU-ID and the PLOAM message queue of the PLOAM newly produced by comparing unit, if the ONU-ID that there is m PLOAM message in PLOAM message queue is identical with the ONU-ID of the new PLOAM produced, then the PLOAM message stores newly produced is arranged in the register of PLOAM message queue input by OLT to one, otherwise the PLOAM message newly produced is put in PLOAM message queue by OLT.OLT place arranges a timer and an extraction comparison unit, the timing of timer is T (T >=125 μ s), when timer overflows, timer is started from scratch timing, and the ONU-ID of the PLOAM message in ONU-ID and the PLOAM message queue of the PLOAM message in Timer Controlling extraction comparison unit comparand register, if the number that the ONU-ID in PLOAM message queue is identical is less than m, then extraction comparison unit by the PLOAM message deposit in register in PLOAM message queue, otherwise, PLOAM message in register is still preserved in a register.
Frame unit, when a composition downlink frame, can comprise following process:
At OLT place, frame unit, when a composition downlink frame, takes out PLOAM message successively from PLOAM message queue, does not comprise broadcast PLOAM message if taken out continuously in N number of PLOAM message, then GTC frame unit is by this N number of PLOAM message composition downlink frame; If GTC frame unit takes out a broadcast PLOAM message from PLOAM message queue, if OLT has taken out part PLOAM message before this broadcast PLOAM message, the then one or more PLOAM message composition downlink frame that will take out before broadcast PLOAM message of GTC frame unit, and broadcast PLOAM message is placed on separately in next downlink frame forms downlink frame; If it is a broadcast PLOAM message that GTC frame unit takes out first PLOAM message from PLOAM message queue, then broadcast PLOAM message is placed in downlink frame separately and forms downlink frame.
Wherein, said extracted comparing unit takes out the principle of PLOAM message sequence and is from register: first in first out or first take out the principle of the highest PLOAM message of priority.
From said process, the clean culture PLOAM message extracted from PLOAM message queue sends by dispensing device in a downlink frame; Extract from PLOAM message queue a broadcast PLOAM message is sent separately in a downlink frame.
Frame unit, when a composition downlink frame, can also comprise following process:
Frame unit takes out PLOAM message successively from PLOAM message queue, does not comprise broadcast PLOAM message if taken out continuously in N number of PLOAM message, then GTC frame unit is by this N number of PLOAM message composition downlink frame; If GTC frame unit takes out a broadcast PLOAM message from PLOAM message queue, then this broadcast PLOAM message is formed a downlink frame with the clean culture PLOAM message (can also comprise: the clean culture PLOAM message of taking out afterwards) of taking out before to send, wherein, PLOAM message number to each lower network element to be sent, demand fulfillment is less than or equal to the condition that this lower network element can process the maximum number of PLOAM message.
From said process, the clean culture PLOAM message extracted from PLOAM message queue and a broadcast PLOAM message can also send by dispensing device in a downlink frame.
Preferably, as shown in Figure 2, device can also comprise: the 3rd memory cell 8, for will produce PLOAM message stores in PLOAM message queue.
Then acquiring unit can also comprise: the 4th extraction module 27, for from default second register and PLOAM message queue, or, from the second register, extract PLOAM message; Second judge module 28, for not comprising broadcast PLOAM message in the PLOAM message extracted, determines whether the PLOAM message number q of corresponding same lower network element is all less than the maximum number m that this network element can process PLOAM message; 3rd memory module 29, for exporting as no at the second judge module, by individual to (q-m) PLOAM message stores to the second register; Processing module 30, for successively (q-m) the individual PLOAM message extracted from PLOAM message queue and/or the second register and the front PLOAM message once extracted being formed N number of PLOAM message jointly, until determine that the PLOAM message number q of corresponding same lower network element in the N number of PLOAM message formed all is less than the maximum number m that this network element can process PLOAM message.
Be described below in conjunction with Fig. 5, Fig. 5 is the structured flowchart of the dispensing device of PLOAM message according to example three of the present invention.As shown in Figure 5, comprise according to the dispensing device of the PLOAM message of example three of the present invention: PLOAM message generating unit, PLOAM message queue, register (being equivalent to the second register), frame unit (being equivalent to processing module).
OLT needs in a downlink frame, send the individual PLOAM message of N (N >=1), and the maximum number of the PLOAM message of sending in a downlink frame each ONU is m (m >=1).At OLT place, need to pre-set a register.
At OLT place, after producing a PLOAM message, directly the PLOAM message newly produced is put in PLOAM message queue.GTC frame unit is when building downlink frame, N number of PLOAM message is taken out altogether from the register figure and PLOAM message queue, broadcast PLOAM message is not comprised if taken out continuously in N number of PLOAM message, the then ONU-ID of more N number of PLOAM message, if the number of certain identical ONU-ID is q, and q is greater than m, then OLT takes out (q-m) individual PLOAM message stores in this register from the identical PLOAM message of q ONU-ID.Then, OLT continues to take out (q-m) individual PLOAM message from PLOAM message queue (and/or register), the PLOAM message groups that message number is N is formed with the PLOAM message that first time takes out, if do not comprise broadcast PLOAM message in N number of PLOAM message, the ONU-ID of OLT more N number of PLOAM message in the manner described above, repeat above-mentioned steps, until the identical ONU-ID number in N number of PLOAM message groups of taking out is less than or equal to m.
GTC frame unit is by this N number of PLOAM message composition downlink frame; If GTC frame unit takes out a broadcast PLOAM message from PLOAM message queue, if OLT has taken out part PLOAM message before this broadcast PLOAM message, and identical ONU-ID number is less than or equal to m in part PLOAM message, the then one or more PLOAM message composition downlink frame that will take out before broadcast PLOAM message of GTC frame unit, and broadcast PLOAM message is placed on separately in next downlink frame forms downlink frame; If it is a broadcast PLOAM message that GTC frame unit takes out first PLOAM message from PLOAM message queue, then broadcast PLOAM message is placed in downlink frame separately and forms downlink frame.
From said process, the clean culture PLOAM message extracted from PLOAM message queue sends by dispensing device in a downlink frame; Extract from PLOAM message queue a broadcast PLOAM message is sent separately in a downlink frame.
Frame unit, when a composition downlink frame, can also comprise following process:
Frame unit takes out PLOAM message successively from PLOAM message queue, does not comprise broadcast PLOAM message if taken out continuously in N number of PLOAM message, then GTC frame unit is by this N number of PLOAM message composition downlink frame; If GTC frame unit takes out a broadcast PLOAM message from PLOAM message queue, then this broadcast PLOAM message is formed a downlink frame with the clean culture PLOAM message (can also comprise: the clean culture PLOAM message of taking out afterwards) of taking out before to send, wherein, PLOAM message number to each lower network element to be sent, demand fulfillment is less than or equal to the condition that this lower network element can process the maximum number of PLOAM message.
Preferably, in above process, OLT takes out N number of PLOAM message altogether from register and PLOAM message queue, its priority is: OLT preferentially takes out whole PLOAM message from register, when whole PLOAM message numbers are in a register less than N, OLT continues to take out PLOAM message from PLOAM message queue.
In above process, OLT takes out the principle of PLOAM message sequence from register is first in first out or the principle of first taking out the highest PLOAM message of priority.
By the device that above-mentioned three examples provide, when sending PLOAM message, the maximum PLOAM message number that all can ensure to send to the number of the PLOAM message of same lower network element to be less than or equal to this lower network element in a downlink frame and can process.
Fig. 6 is the flow chart of the sending method of PLOAM message according to the embodiment of the present invention.As shown in Figure 6, following process (step S601-step S605) is comprised according to the sending method of the PLOAM message of the embodiment of the present invention:
Step S601: upper layer network element is informed in the number N of the PLOAM message that can be sent to lower network element in a downlink frame, wherein, in PLOAM message, the number of the PLOAM message to each lower network element to be sent is all less than or equal to the maximum number m that this lower network element can process PLOAM message, N >=1, m > 0;
Step S603: upper layer network element obtains PLOAM message according to the number of PLOAM message, wherein, the PLOAM message number x obtained is less than or equal to the number N of PLOAM message, the number a of the PLOAM message of the same lower network element of correspondence obtained is less than or equal to the maximum number m that this lower network element can process PLOAM message, x >=0, a >=0;
Step S605: upper layer network element sends the PLOAM message obtained in a downlink frame to lower network element.
Adopt said method, when sending multiple PLOAM message in a downlink frame, the maximum PLOAM message number that can ensure to send to the number of the PLOAM message of same lower network element to be less than or equal to this lower network element in a downlink frame and can process.
Wherein, upper layer network element includes but not limited to: optical line terminal (OLT), and lower network element includes but not limited to: optical network unit (ONU).
Wherein, PLOAM message comprises: clean culture PLOAM message, and/or, broadcast PLOAM message.
Preferably, execution step S603 before, following process can also be comprised: upper layer network element by produce the clean culture PLOAM message stores default register that layer network element is corresponding in each of the lower in, and by produce broadcast PLOAM message stores in PLOAM message queue.
Then step S603 may further include following process:
(1) when Preset Time arrives, upper layer network element extracts clean culture PLOAM message from default register corresponding to each lower network element;
Preferably, upper layer network element extracts the PLOAM message of acquisition from default register corresponding to each lower network element by successively or successively circulation extracting mode.
(2) upper layer network element by extract clean culture PLOAM message stores in PLOAM message queue;
(3) upper layer network element extracts PLOAM message from PLOAM message queue.
In specific implementation process, upper layer network element sends to lower network element the PLOAM message obtained and comprises one of following in a downlink frame:
(1) the clean culture PLOAM message extracted from PLOAM message queue sends by upper layer network element in a downlink frame;
(2) the clean culture PLOAM message extracted from PLOAM message queue and a broadcast PLOAM message send by upper layer network element in a downlink frame;
(3) extract from PLOAM message queue a broadcast PLOAM message sends by upper layer network element in a downlink frame.
In specific implementation process, above-mentioned three kinds of send modes see the description in Fig. 3 to Fig. 5, can repeat no more herein.
Preferably, before execution step S603, following process can also be comprised:
(1) identification information of lower network element corresponding with the PLOAM message in PLOAM message queue for the PLOAM message of generation compares by upper layer network element;
(2) according to comparative result, the identification information determining whether to exist in PLOAM message queue the identification information of lower network element corresponding to m the PLOAM message lower network element corresponding with the PLOAM message of generation is consistent;
(3) if then the PLOAM message stores produced is being preset in the first register;
(4) otherwise, then by produce PLOAM message stores in PLOAM message queue.
Then step S603 may further include following process:
(1) when Preset Time arrives, whether the identification information that upper layer network element compares the lower network element that each PLOAM message is corresponding with the PLOAM message in PLOAM message queue in the first register is consistent;
(2) identical with the identification information of the corresponding lower network element of PLOAM message in described first register if there is p PLOAM message in described PLOAM message queue, wherein, 0≤p < m, then deposit in described PLOAM message queue by PLOAM message extraction identical with the identification information of described p the lower network element that PLOAM message is corresponding in described first register;
(3) upper layer network element extracts PLOAM message from described PLOAM message queue.
In specific implementation process, upper layer network element also can send the PLOAM message of above-mentioned acquisition by one of three kinds of modes above-mentioned.
Preferably, execution step S603 before, following process can also be comprised: upper layer network element by produce PLOAM message stores in PLOAM message queue.
Then step S603 may further include following process:
(1) upper layer network element extracts PLOAM message from PLOAM message queue and/or default second register;
In specific implementation process, in above-mentioned steps (1), the PLOAM message that upper layer network element extracts acquisition from PLOAM message queue and/or default second register can comprise following process:
(1.1) upper layer network element Extraction parts or whole PLOAM message from the second register, wherein, the number of the PLOAM message extracted from the second register is r, r≤X;
(1.2) when r < x, upper layer network element extracts (x-r) individual PLOAM message from PLOAM message queue.
(2), when not comprising broadcast PLOAM message in the PLOAM message extracted, determine whether the number q of the PLOAM message of corresponding same lower network element is all less than the maximum number m that this network element can process PLOAM message;
(3) if not, then by individual to (q-m) PLOAM message stores to the second register;
(4) (q-m) the individual PLOAM message extracted from PLOAM message queue and/or the second register and the front PLOAM message once extracted are formed N number of PLOAM message by upper layer network element successively jointly, until determine that the PLOAM message number q of corresponding same lower network element in the N number of PLOAM message formed all is less than the maximum number m that this network element can process PLOAM message.
In specific implementation process, upper layer network element can send the PLOAM message got in the following manner:
(1) the clean culture PLOAM message extracted from PLOAM message queue and/or the second register sends by upper layer network element in a downlink frame;
(2) one that extracts from PLOAM message queue/or the second register broadcast PLOAM message sends by upper layer network element in a downlink frame;
(3) the clean culture PLOAM message extracted from PLOAM message queue and/or the second register and one or more broadcast PLOAM message send by upper layer network element in a downlink frame.
In above process, OLT takes out the principle of PLOAM message sequence from register is first in first out or the principle of first taking out the highest PLOAM message of priority.
Three kinds of methods thering is provided of above-described embodiment are provided, when sending PLOAM message, the maximum PLOAM message number that all can ensure to send to the number of the PLOAM message of same lower network element to be less than or equal to this lower network element in a downlink frame and can process.
In sum, by above-described embodiment provided by the invention, solve in a downlink frame and send to same lower network element (such as, the number of PLOAM message ONU) is greater than the problem of the maximum PLOAM message number that this lower network element can process, the maximum PLOAM message number that can ensure to send to the number of the PLOAM message of same lower network element to be less than or equal to this lower network element in a downlink frame and can process, effectively improves the reliability of system.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a sending method for physical layer operations management maintenance PLOAM message, is characterized in that, comprising:
Upper layer network element is informed in the number N of the PLOAM message that can be sent to lower network element in a downlink frame, wherein, in described PLOAM message, the number of the PLOAM message to each described lower network element to be sent is all less than or equal to the maximum number m that this lower network element can process PLOAM message, N >=1, m ﹥ 0;
Described upper layer network element obtains PLOAM message according to the number of described PLOAM message, wherein, the number x of the PLOAM message obtained is less than or equal to the number N of described PLOAM message, the number a of the PLOAM message of the same lower network element of correspondence obtained is less than or equal to the maximum number m that this lower network element can process PLOAM message, x >=0, a >=0;
Described upper layer network element sends the PLOAM message of described acquisition in a downlink frame to described lower network element.
2. method according to claim 1, is characterized in that, before described upper layer network element obtains PLOAM message according to the number of described PLOAM message, described method also comprises:
Described upper layer network element by produce clean culture PLOAM message stores in the default register that each described lower network element is corresponding, and by produce broadcast PLOAM message stores in PLOAM message queue.
3. method according to claim 2, is characterized in that, described upper layer network element obtains PLOAM message according to the number of described PLOAM message and comprises:
When Preset Time arrives, described upper layer network element extracts clean culture PLOAM message from default register corresponding to each described lower network element;
Described upper layer network element by extract clean culture PLOAM message stores in PLOAM message queue;
Described upper layer network element extracts PLOAM message from described PLOAM message queue.
4. method according to claim 1, is characterized in that, before described upper layer network element obtains PLOAM message according to the number of described PLOAM message, described method also comprises:
The identification information of lower network element corresponding with the PLOAM message in PLOAM message queue for the PLOAM message of generation compares by described upper layer network element;
According to comparative result, the identification information determining whether to exist in described PLOAM message queue the identification information of lower network element corresponding to m the PLOAM message lower network element corresponding with the PLOAM message of described generation is consistent;
If so, then the PLOAM message stores of described generation is being preset in the first register;
Otherwise, then by the PLOAM message stores of described generation in described PLOAM message queue.
5. method according to claim 4, is characterized in that, described upper layer network element obtains PLOAM message according to the number of described PLOAM message and comprises:
When Preset Time arrives, in more described first register of described upper layer network element, whether the identification information of the lower network element that each PLOAM message is corresponding with the PLOAM message in described PLOAM message queue is consistent;
If it is identical with the identification information of the corresponding lower network element of PLOAM message in described first register to there is p PLOAM message in described PLOAM message queue, wherein, 0≤p ﹤ m, then PLOAM message extraction identical with the identification information of described p the lower network element that PLOAM message is corresponding in described first register is deposited in described PLOAM message queue, wherein, the PLOAM message number that the mark in the PLOAM message queue after depositing is identical is less than or equal to m;
Described upper layer network element extracts PLOAM message from described PLOAM message queue.
6. method according to claim 1, is characterized in that, before described upper layer network element obtains PLOAM message according to the number of described PLOAM message, described method also comprises:
Described upper layer network element by produce PLOAM message stores in PLOAM message queue.
7. method according to claim 6, is characterized in that, described upper layer network element obtains PLOAM message according to the number of described PLOAM message and comprises:
Described upper layer network element is from described PLOAM message queue and/or preset the PLOAM message extracting described acquisition the second register;
When not comprising broadcast PLOAM message in the PLOAM message of described acquisition, determine whether the number q of the PLOAM message of corresponding same lower network element is all less than the maximum number m that this network element can process PLOAM message;
If not, then by individual to (q-m) described PLOAM message stores to described second register;
(q-m) the individual PLOAM message extracted from described PLOAM message queue and/or described second register and the front PLOAM message once extracted are formed N number of PLOAM message by described upper layer network element successively jointly, until determine that the PLOAM message number q of corresponding same lower network element in the described N number of PLOAM message formed all is less than the maximum number m that this network element can process PLOAM message.
8. a dispensing device for physical layer operations management maintenance PLOAM message, is characterized in that, comprising:
Know unit, for being informed in the number N of the PLOAM message that can be sent to lower network element in a downlink frame, wherein, in described PLOAM message, the number of the PLOAM message to each described lower network element to be sent is all less than or equal to the maximum number m that this lower network element can process PLOAM message, N >=1, m ﹥ 0;
Acquiring unit, PLOAM message is obtained for the number according to described PLOAM message, wherein, the number x of the PLOAM message obtained is less than or equal to the number N of described PLOAM message, the number a of the PLOAM message of the same lower network element of correspondence obtained is less than or equal to the maximum number m that this lower network element can process PLOAM message, x >=0, a >=0;
Transmitting element, for sending the PLOAM message of described acquisition in a downlink frame to described lower network element.
9. device according to claim 8, is characterized in that, described device also comprises:
First memory cell, for will produce clean culture PLOAM message stores in the default register that each described lower network element is corresponding, and by produce broadcast PLOAM message stores in PLOAM message queue.
10. device according to claim 9, is characterized in that, described acquiring unit comprises:
First extraction module, for when Preset Time arrives, extracts clean culture PLOAM message from the default register that each described lower network element is corresponding;
First memory module, for will extract clean culture PLOAM message stores in PLOAM message queue;
Second extraction module, for extracting PLOAM message from described PLOAM message queue.
11. devices according to claim 8, is characterized in that, described device also comprises:
Comparing unit, for comparing the identification information of lower network element corresponding with the PLOAM message in PLOAM message queue for the PLOAM message of generation;
Judging unit, for according to comparative result, the identification information determining whether to exist in described PLOAM message queue the identification information of lower network element corresponding to m the PLOAM message lower network element corresponding with the PLOAM message of described generation is consistent;
Second memory cell, for when described judging unit exports as being, the PLOAM message stores of described generation is being preset in the first register, is exporting as no, by the PLOAM message stores of described generation in described PLOAM message queue at described judging unit.
12. devices according to claim 11, is characterized in that, described acquiring unit comprises:
Comparison module, for when Preset Time arrives, in more described first register, whether the identification information of the lower network element that each PLOAM message is corresponding with the PLOAM message in described PLOAM message queue is consistent;
First judge module, identical with the identification information of the corresponding lower network element of PLOAM message in described first register for determining whether there is p PLOAM message in described PLOAM message queue, wherein, 0≤p ﹤ m;
Second memory module, for when described first judge module exports as being, PLOAM message extraction identical with the identification information of described p the lower network element that PLOAM message is corresponding in described first register is deposited in described PLOAM message queue, wherein, the PLOAM message number that the mark in the PLOAM message queue after depositing is identical is less than or equal to m;
3rd extraction module, for extracting PLOAM message from described PLOAM message queue.
13. devices according to claim 8, is characterized in that, described device also comprises:
3rd memory cell, for will produce PLOAM message stores in PLOAM message queue.
14. devices according to claim 13, is characterized in that, described acquiring unit comprises:
4th extraction module, for extracting the PLOAM message of described acquisition from described PLOAM message queue and/or default second register;
Second judge module, for not comprising broadcast PLOAM message in the PLOAM message of described acquisition, determines whether the number q of the PLOAM message of corresponding same lower network element is all less than the maximum number m that this network element can process PLOAM message;
3rd memory module, for exporting as no at described second judge module, by individual to (q-m) described PLOAM message stores to described second register;
Processing module, for successively individual to (q-m) that extract from described PLOAM message queue and/or described second register described PLOAM message and the front PLOAM message once extracted being formed N number of PLOAM message jointly, until determine that the PLOAM message number q of corresponding same lower network element in the described N number of PLOAM message formed all is less than the maximum number m that this network element can process PLOAM message.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010000342.5A CN102130841B (en) | 2010-01-20 | 2010-01-20 | Physical layer operations, administration and maintenance (PLOAM) message transmission method and device |
| PCT/CN2010/078404 WO2011088699A1 (en) | 2010-01-20 | 2010-11-04 | Method and apparatus for transmitting physical layer operation, administration and maintenance messages |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010000342.5A CN102130841B (en) | 2010-01-20 | 2010-01-20 | Physical layer operations, administration and maintenance (PLOAM) message transmission method and device |
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| CN102130841A CN102130841A (en) | 2011-07-20 |
| CN102130841B true CN102130841B (en) | 2015-06-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040026516A (en) * | 2002-09-25 | 2004-03-31 | 엘지전자 주식회사 | PLOAM cell generating device of the optical transmission system |
| CN101409708A (en) * | 2008-11-08 | 2009-04-15 | 浙江工业大学 | GPON GTC frame-forming sublayer based on FPGA |
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| ATE354229T1 (en) * | 2002-05-21 | 2007-03-15 | Cit Alcatel | POINT-TO-MULTI-POINT TELECOMMUNICATION SYSTEM WITH DOWNWARD FRAME STRUCTURE |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040026516A (en) * | 2002-09-25 | 2004-03-31 | 엘지전자 주식회사 | PLOAM cell generating device of the optical transmission system |
| CN101409708A (en) * | 2008-11-08 | 2009-04-15 | 浙江工业大学 | GPON GTC frame-forming sublayer based on FPGA |
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| WO2011088699A1 (en) | 2011-07-28 |
| CN102130841A (en) | 2011-07-20 |
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