CN1885944A - Method and apparatus for carrying out control on CATV service in kilomega bit Ethernet EPON - Google Patents
Method and apparatus for carrying out control on CATV service in kilomega bit Ethernet EPON Download PDFInfo
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- CN1885944A CN1885944A CNA2006100868490A CN200610086849A CN1885944A CN 1885944 A CN1885944 A CN 1885944A CN A2006100868490 A CNA2006100868490 A CN A2006100868490A CN 200610086849 A CN200610086849 A CN 200610086849A CN 1885944 A CN1885944 A CN 1885944A
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Abstract
The provided control method for CATV business in EPON comprises: the CATV control module in OLT communicates with ONU to control its interface and then the connected power supply module for CATV for final control on CATV business.
Description
Technical field
The present invention relates to fiber optic communication field, relate in particular to the method and apparatus of in a kind of EPON (EPON) user's cable TV (CATV) business being controlled at Gigabit Ethernet.
Background technology
The Ethernet maturation that possesses skills, cheap, simple to operate, be convenient to many advantages such as maintenance, so far from the date of birth, in the Local Area Network technology, occupied the empery status.Along with the release of gigabit Ethernet and 10G ethernet standard, Ethernet is in bandwidth ability, and all there has been leaping of matter aspects such as QoS (QoS) guarantee.Ethernet has just progressed into metropolitan area network (MAN) and wide area network (WAN) from LAN.And gigabit ethernet passive optical network (EPON) is a very attractive technology in the Access Network field therefore owing to can accomplish to carry out seamless link with a large amount of intranet of ethernet technology and emerging metropolitan area network and wide area networks based on Ethernet of adopting.EPON and broadband P ON (BPON) Comparatively speaking can provide higher bandwidth; With gigabit ability PON (GPON) Comparatively speaking, EPON has suitable cost advantage.Being particularly suitable for vast domestic consumer, is an extraordinary solution that realizes that Fiber to the home (FTTH).
EPON is made up of the optical line terminal that is positioned at local side (OLT) and several optical network units (ONU) that is positioned at far-end.Connect by passive light distribution network (ODN) between OLT and the ONU.EPON adopts point to multiple spot (P2MP) topological structure, sees Fig. 1.Because ODN's is passive, on down direction (from OLT to ONU), all signals that send from OLT will arrive all ONU.Filter out one's own bag by ONU, abandon other bag.As seen EPON is the broadcasting medium on down direction in essence.
At present, in family's network application, cable TV (CATV) is a considerable business.And the broadcasting characteristics of EPON are to be suitable for very much carrying out therein this business.The application of " unification of three nets " also is one of advantage of EPON.Only need to lay optical fiber, just can satisfy user's online of being in, the life and the amusement demand of making a phone call and seeing TV.No longer need to lay different networks and circuit for each business separately as in the past.The current mode of single fiber 3 ripples that generally adopts is supported the CATV business in EPON.3 ripples refer to 1310nm, and 1490nm and 1550nm wavelength are respectively applied for the transmission uplink user data, down user data and CATV business.As shown in Figure 1.
The standardization of EPON is formulated by last mile Ethernet alliance (EFMA), and is ratified by IEEE in 2004, and as 802.3 replenish, definite designation is IEEE802.3ah-2004.In the EPON standard, in order to realize centralized management, at length defined the Multi-point Control Protocol (MPCP) between OLT and the ONU to ONU, and Operations,Administration And Maintenance (OAM) function.OLT can control the discovery registration of ONU by MPCP, realizes the management of uplink traffic and the distribution of bandwidth.OAM(Operation Administration Maintenance) among the EPON also provides simple fault detect and has reported mechanism.
Yet the CATV signal is by coarse wavelength division multiplexer (CWDMA) technology, is superimposed upon to transmit among the EPON.Do not mention how controlling for the CATV module of far-end in the existing EPON standard by OLT yet.That is to say that the CATV business is uncontrollable fully in EPON.Because the downlink broadcast characteristics of EPON, as long as the user has bought the ONU that the CATV module is installed, he only needs to pay the expense of online or phone, just can teleview " freely ".Be in arrears with the user of CATV expense for malice, operator or the CNN CATV module that user family removes among the ONU of can only sending someone (can not be cut to the optical fiber of user family, because can have influence on data service and telephone service like this, perhaps the user is not in arrears with the expense of these two kinds of business).After the user paid up arrearage, the user family that needs again to send someone installed the CATV module.This will certainly increase the operation and the maintenance cost of operator or CNN.And reinstall from removing to, need long time certainly.The more important thing is,, probably can bring many economic problems that cause legal dispute owing to the CATV module (and ONU is likely the equipment that the user buys) that will remove among the ONU.
Summary of the invention
The objective of the invention is to propose the method and apparatus among a kind of EPON user CATV business controlled.Make operator or cable TV merchant can by network management system or the OLT that is positioned at local side to user CATV business open and maintenance is managed concentratedly.When subscriber arrearage, no longer need the person of sending someone in user family, only need just can be cut to the CATV signal of this user family on the local side webmaster by an order is set.After the user pays up expense, also be only to need just can open the CATV business once more for the user immediately by an order.
In order to achieve the above object, have two technical problems to need to solve:
1) EPON far-end control chip (following abbreviation ONU chip) has the EPON system of CATV function to the control of CATV module, increased CATV and two modules of CATV power supply in the ONU side, the CATV module is mainly finished the output of reception, opto-electronic conversion and the CATV analog signal of CATV light signal.Supply module and ONU supply module are separate, are responsible for the supply of CATV module voltage.
The CATV function is controlled when not influencing the EPON system works in order to make operator or cable television service provider can cross EPON system local side webmaster, just must between ONU chip and CATV supply module or CATV module, be increased control signal.
2) local side management
As previously mentioned, present anolog TV signals are the common network transmission with data or other business in EPON.Do not relate in the EPON standard and how to control the CATV business by the local side webmaster of EPON.Therefore must define the function that a cover internal agreement realizes controlling by far-end ONU chip the CATV business.In the software of OLT equipment, also the CATV controlled function must be arranged.
In order to solve above-mentioned two technical problems, the present invention by the following technical solutions.Adopt a kind of device of in EPON user CATV business being controlled, it comprises: optical network unit (ONU) has the control interface that the switch of CATV supply module is controlled; Be positioned at the CATV module of ONU side, this CATV module is made up of CATV light signal receiving element, photoelectric conversion unit and CATV analog signal output unit; Be positioned at the ONU side and the CATV supply module of voltage is provided to the CATV module; And optical line terminal (OLT), have the CATV control module, by communicate and then control the switch of CATV supply module with ONU.Wherein, utilize the GPIO pin of ONU far-end chip, the supply module of CATV is controlled.The switch that GPIO pin output high level by the far-end chip or low level are controlled the CATV power module, as shown in Figure 2.The control interface that the GPIO interface provides for the ONU acp chip, OLT can control it by OAM message.For the CATV supply module, we select to have the chip of turn-off function.Its control interface SHDN opens CATV supply module, VCC output voltage when low level; When high level, close the CATV supply module.(though what enumerate among the present invention is the example that power module is closed when GPIO pin output high level, and this scheme is also applicable to opposite situation, and promptly power module is closed during GPIO pin output low level)
The control interface SHDN of CATV supply module links to each other with the GPIO of ONU acp chip, thereby can control the CATV supply module easily, and then the CATV module is controlled.
A GPIO pin of definition ONU chip is an output pin, is referred to as the CATVCTL pin.Under normal operation, CATVCTL pin output low level, the CATV supply module can normally be exported the needed power supply of CATV module.After the initialization of OLT device software, will create a CATV control module.This module will issue the message of closing CATV or opening CATV according to the webmaster order to ONU.
Can use said apparatus CATV business to the user in EPON to control, concrete steps are as follows:
A, when the user opens ONU, OLT finds this ONU;
B, OLT inquire about relative recording, determine this ONU user's the situation of paying the fees;
CATV control module notice ONU among C, the OLT; ONU by control CATV supply module unlatching or close the final control that realizes the CATV business.
Wherein, the network manager can assign the order of the CATV function of turn-offing ONU by network management system, and the CATV control module on the OLT is assigned this order to ONU by inner OAM message.CATVCTL pin output level becomes height, and the CATV supply module is turned off, and no longer is the CATV module for power supply, and the CATV business of this user family just is turned off.
When the webmaster personnel issued an order of opening the CATV business again, the ONU acp chip can be received the order of CATV control module among the OLT equally, and CATVCTL pin output level will become low level again, and the CATV supply module reverts to the CATV module for power supply.
The order that the CATV control module is assigned according to webmaster sends the order of opening or closing CATV to ONU.Find to have ONU to power on after the registration when ONU finds processing module, also can notify the CATV control module.The CATV control module will judge that this ONU belongs to defaulting subscriber or defaulting subscriber not, assigns corresponding order to ONU then.
Current C ATV business is superimposed upon in the EPON network to be transmitted.Though by EPON, can provide data for the user, business such as voice and CATV can only accomplish centralized management to user's data and speech business, and the CATV business are not controlled.That is to say, though CATV and data and voice all are to transmit in same physical network.But from the angle of webmaster, CATV net and EPON remain two independently networks, also are not real " unifications of three nets ".
And the method and apparatus of in EPON, user CATV business being controlled proposed by the invention.Be convenient to operator or cable TV merchant and can or be positioned at the OLT centralized control user's of local side the opening and safeguarding of CATV business by network management system.Realize real " unification of three nets ".When subscriber arrearage, no longer need the person of sending someone in user family, only need just can be cut to the CATV signal of this user family on the local side webmaster by an order is set.After the user pays up expense, also be only to need just can open the CATV business once more for the user immediately by an order.Not only save the operation and the maintenance cost of operator or CNN, also improved the efficient of service simultaneously, shortened the time that activates the service again for the user.Thereby obtain higher user satisfaction.In addition, the present invention adopts the GPIO pin of far-end chip, and the module of CATV is controlled, and the mode than adopting additional circuit control CATV modules such as processor has effectively reduced cost, reduces failure rate, for large-scale application provides good basis.
Description of drawings
Fig. 1 is an EPON system diagram of realizing " unification of three nets ";
Fig. 2 is the ONU structure chart that has the CATV controlled function among the present invention;
Fig. 3 controls relevant high-level schematic functional block diagram with CATV in the OLT equipment;
Fig. 4 is the method flow diagram that OLT realizes CATV control;
Fig. 5 (being Fig. 5 .1,5.2,5.3,5.4) is CATVCTL signal and VCC signal timing diagram;
Fig. 6 is to use the sub-district case study on implementation schematic diagram of apparatus of the present invention.
Embodiment
ONU with CATV controlled function shown in Figure 1 is one of embodiments of the invention, it by optical network unit (ONU), be positioned at the CATV module of ONU side and be positioned at the ONU side and provide the CATV supply module of voltage to form to the CATV module.Wherein, ONU has the control interface that the switch of CATV supply module is controlled, we define a GPIO pin of ONU chip, and promptly the CATVCTL pin is this control interface, control the switch of CATV power module by GPIO pin output high level or low level.The CATV module is made up of CATV light signal receiving element, photoelectric conversion unit and CATV analog signal output unit, realizes reception and processing to the CATV signal.The CATV supply module that links to each other with the CATV module then is responsible for providing voltage to the CATV module, and we select to have the chip of turn-off function as the CATV supply module.Its control interface SHDN links to each other with the GPIO of ONU acp chip, SHDN module open circuit when GPIO pin output low level, and the VCC output voltage is to the CATV module for power supply; Shut-off circuit then when GPIO pin output high level stops the module for power supply to CATV.
The optical line terminal (OLT) that is positioned at local side is by communicating the unlatching of control CATV supply module with ONU or close, thereby realizes the control to user CATV business.This OLT is made up of network management interface module, ONU discovery processing module and CATV control module.
When the user opens ONU, OLT finds this ONU by ONU discovery processing module, and the situation record of paying the fees accordingly inquired about, if this not arrearage of ONU user, CATV control module on the OLT equipment is by inner OAM message informing ONU acp chip GPIO interface output low level, CATV supply module output voltage, user CATV module operate as normal.If this user is the defaulting subscriber, then the CATV control module on the OLT equipment will be notified ONU acp chip GPIO interface output high level, and the CATV supply module is closed, and user CATV module quits work.When the user took place illegally to use the CATV signal, supplier assigned out code by EPON local side webmaster, and the CATV control module on the OLT will send the order of closing the CATV function to the ONU acp chip.ONU acp chip GPIO interface output level becomes high level, and the CATV supply module is closed, and user CATV module quits work.After customer charge is paid up, the CATV control module on the OLT will send the order of opening user CATV function again to the ONU acp chip.ONU acp chip GPIO interface output level becomes low level, and the CATV supply module is opened again, user CATV module operate as normal.
Fig. 4 realizes the method flow diagram of CATV control for OLT.This flow process is divided into 3 parts: ONU and opens; Turn-off CATV behind the subscriber arrearage; Again open CATV behind user's delivery charges.
1. ONU opens
When the user opens ONU, OLT will find this ONU by the MPCP process.If this not arrearage of ONU user, the CATV control module on the OLT equipment will be notified ONU acp chip GPIO interface output low level, CATV supply module output voltage, user CATV module operate as normal.If this user is the defaulting subscriber, then the CATV control module on the OLT equipment will be notified ONU acp chip GPIO interface output high level, and the CATV supply module is closed, and user CATV module quits work.
2. CATV turn-offs
When the user took place illegally to use the CATV signal, supplier assigned out code by EPON local side webmaster, and the CATV control module on the OLT will send the order of closing the CATV function to the ONU acp chip.ONU acp chip GPIO interface output level becomes high level, and the CATV supply module is closed, and user CATV module quits work.
3. CATV opens again
After customer charge is paid up, the CATV control module on the OLT will send the order of opening user CATV function again to the ONU acp chip.ONU acp chip GPIO interface output level becomes low level, and the CATV supply module is opened again, user CATV module operate as normal.
In the above methods, the CATVCTL signal echoes mutually with the sequential of VCC signal:
When a) ONU started, CATVCLT was high, if the user does not have arrearage, ONU receives CATV control module open command, and CATVCLT becomes low level, and VCC is output as high level.Shown in Fig. 5 .1.
When b) ONU started, CATVCLT was high, if subscriber arrearage, ONU receives CATV control module shutoff instruction, and CATVCLT keeps high level, and VCC is output as low level.Shown in Fig. 5 .2.
C) when the user takes place illegally to use the CATV signal, ONU receives CATV control module shutoff instruction, and CATVCLT becomes high level, and VCC is output as low level.Shown in Fig. 5 .3.
D) after customer charge is paid up, ONU receives CATV control module pass open command, and CATVCLT becomes low level, and VCC is output as high level.Shown in Fig. 5 .4.
Fig. 6 is that the EPON equipment of the FiberHome used according to the invention is implemented the case that multi-service inserts in certain sub-district.Wherein AN5116-01 is a local side apparatus, is positioned at the sub-district machine room, and AN5006-05 is a remote equipment, is arranged in user house, can be the user online is provided, phone, CATV, business such as IPTV.ANM2000 is a network management system, also is arranged in machine room.
This network is responsible for construction by the residence network operator of sub-district.After the user pacified the application installation, residence network operator in sub-district was installed to ONU in the user family.All business all are opening state in the user family at this moment.Because what user's online and telephone service and CATV business were taked is to separate the mode of paying dues, and after having moved a period of time, the situation that user's malice owes to hand over the CATV expense may occur.The staff just can go this user's CATV business to enable directly being arranged in the ANM2000 system of machine room.After the user pays up expense, issue orders by the ANM2000 system again, user's CATV business is open-minded once more.
The foregoing description only is exemplary, it will be apparent to those skilled in the art that not break away from the spirit and scope of the present invention, can make amendment and changes the present invention.Scope of the present invention is defined by appended claim.
Claims (9)
1, a kind of device of in Ethernet passive optical network (EPON) user's cable TV (CATV) business being controlled comprises:
Optical network unit (ONU), this equipment has the control interface that the switch of CATV supply module is controlled;
Be positioned at the CATV module of ONU side, this CATV module is made up of CATV light signal receiving element, photoelectric conversion unit and CATV analog signal output unit;
Be positioned at the ONU side and the CATV supply module of voltage is provided to the CATV module; And
Optical line terminal (OLT), this equipment has the CATV control module, by communicate and then control the switch of CATV supply module with ONU.
2, device as claimed in claim 1 is characterized in that the switch of controlling the CATV supply module by GPIO pin output high level or the low level of ONU.
3, device as claimed in claim 1 is characterized in that the network manager can assign the control command of opening or closing CATV by the CATV control module among the OLT to ONU.
4, device as claimed in claim 1 is characterized in that the CATV control module among the OLT is assigned the control command of opening or closing CATV by inner OAM message to ONU.
5, a kind of method of in EPON user CATV business being controlled may further comprise the steps:
A, when the user opens ONU, OLT finds this ONU;
B, OLT inquire about relative recording, determine this ONU user's the situation of paying the fees;
CATV control module notice ONU among C, the OLT; ONU by control CATV supply module unlatching or close the final control that realizes the CATV business.
6, method as claimed in claim 5 is characterized in that in step C, if not arrearage of user, then the CATV business is opened in OLT control, if subscriber arrearage is then closed this user's CATV business.
7, method as claimed in claim 5, it is characterized in that after OLT among the step C has closed user's CATV business, if customer charge is paid up, then the CATV control module among the OLT sends the order of opening user CATV function again to ONU, opens this user's CATV business again.
8, method as claimed in claim 5 is characterized in that the switch of controlling the CATV supply module by GPIO pin output high level or the low level of ONU.
9, method as claimed in claim 5 is characterized in that the network manager can assign the control command of opening or closing CATV by the CATV control module among the OLT to ONU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100868490A CN100499809C (en) | 2006-06-21 | 2006-06-21 | Method and apparatus for carrying out control on CATV service in kilomega bit Ethernet EPON |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100868490A CN100499809C (en) | 2006-06-21 | 2006-06-21 | Method and apparatus for carrying out control on CATV service in kilomega bit Ethernet EPON |
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| CN1885944A true CN1885944A (en) | 2006-12-27 |
| CN100499809C CN100499809C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100868490A Expired - Fee Related CN100499809C (en) | 2006-06-21 | 2006-06-21 | Method and apparatus for carrying out control on CATV service in kilomega bit Ethernet EPON |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017522A (en) * | 2008-05-05 | 2011-04-13 | 诺基亚西门子通信公司 | Two and three-stroke discovery process for 10G-EPONs |
| CN103117870A (en) * | 2012-12-31 | 2013-05-22 | 广东东研网络科技股份有限公司 | Coaxial-cable Ethernet optical network unit (ONU)-Ethernet over coax (EOC)-community antenna television (CATV) topology association method |
-
2006
- 2006-06-21 CN CNB2006100868490A patent/CN100499809C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017522A (en) * | 2008-05-05 | 2011-04-13 | 诺基亚西门子通信公司 | Two and three-stroke discovery process for 10G-EPONs |
| CN103117870A (en) * | 2012-12-31 | 2013-05-22 | 广东东研网络科技股份有限公司 | Coaxial-cable Ethernet optical network unit (ONU)-Ethernet over coax (EOC)-community antenna television (CATV) topology association method |
| CN103117870B (en) * | 2012-12-31 | 2016-10-05 | 广东东研网络科技股份有限公司 | Coaxial cable Ethernet ONU-EOC-CATV topological correlation method |
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| Publication number | Publication date |
|---|---|
| CN100499809C (en) | 2009-06-10 |
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