WO2014036682A1

WO2014036682A1 - Method, device, and system for preventing registration conflict

Info

Publication number: WO2014036682A1
Application number: PCT/CN2012/080960
Authority: WO
Inventors: 孙方林
Original assignee: 华为技术有限公司
Priority date: 2012-09-04
Filing date: 2012-09-04
Publication date: 2014-03-13
Also published as: CN103004140A

Abstract

Embodiments of the present invention relate to the technical field of communications, and provide a method, device, and system for preventing a registration conflict, which can prevent a conflict of registration requests on a coaxial medium to ensure that a registration request of a coaxial network unit can be accurately transmitted to an optical line terminal. The present invention comprises: upon monitoring initialized authorization information sent by an optical line terminal, obtaining coaxial network units that currently have completed initial access to a convertor but have not completed registration in the optical line terminal; according to the monitored initialized authorization information, generating registration request sending time periods corresponding to the coaxial network units; sending the generated registration request sending time periods to corresponding coaxial network units, so that the coaxial network units that have received the registration request sending time periods send registration requests to the optical line terminal according to the received registration request sending time periods. Embodiments of the present invention are mainly applied to the process of registering coaxial network units with the optical line terminal.

Description

Method, device and system for avoiding registration conflicts

The present invention relates to the field of communications technologies, and in particular, to a method, apparatus, and system for avoiding registration conflicts.

Background technique

EPOC (EPON Protocol over COAX, a coaxial system combining Ethernet passive optical network protocol) is introduced into the coaxial cable COAX by the mature EPON (Ethernet Passive Optical Network) technology and protocol. The network system formed by the EPON protocol in the Coax domain MAC (Media Access Control) layer can implement end-to-end management, that is, the OLT (Optical Line Terminal) can directly control the CNU of the Coax domain. (Coaxial Network Unit, coaxial network unit). The devices under the EPOC network framework are divided into 0LT, converter and CNU by function; the converter can be CLT (Coaxial Line Terminal) or MC (media converter). In implementing the 0LT control of the CNU, the registration of the CNU on the 0LT must be completed. In this registration process, the CNU sends a registration request, which is forwarded to the 0LT via the CLT, since the same CLT can be configured with multiple CNUs. This will cause the registration requests sent by multiple CNUs to collide within the COAX domain, causing the registration request not to be correctly transmitted to the OLT.

Summary of the invention

Embodiments of the present invention provide a method, apparatus, and system for avoiding registration conflicts, which can prevent a registration request from colliding within a COAX domain, and ensure that the registration request can be correctly transmitted to the 0LT.

In order to achieve the above object, embodiments of the present invention use the following technical solutions:

A method to avoid registration conflicts, including:

Obtaining, when listening to the initialization authorization information sent by the optical line terminal, a coaxial network unit that has completed the initial access in the converter and has not completed registration at the optical line terminal;

Generating corresponding to each of the coaxial network units according to the monitored initialization authorization information The time period during which the registration request is sent;

The generated registration request transmission time period is transmitted to the corresponding coaxial network unit, so that the coaxial network unit receiving the registration request transmission time period transmits a registration request to the optical line terminal according to the received registration request transmission time period.

A method for avoiding registration conflicts, comprising:

Receiving, by the converter, a registration request sending time period, where the registration request sending time period is used to identify a time period during which the coaxial network unit can send the registration request to the optical line terminal; wherein, different coaxial network units are to the optical line terminal There is no overlap time between the time periods during which the sending registration request can be used;

A registration request is sent to the optical line terminal by selecting one of the registration request transmission time periods.

A converter, including:

An acquiring unit, configured to: when monitoring the initialization authorization information sent by the optical line terminal, acquire a coaxial network unit that has completed initial access in the converter and does not complete registration in the optical line terminal; and generate a unit, configured to monitor The initializing authorization information, generating a registration request sending time period corresponding to each of the coaxial network units acquired by the acquiring unit;

a sending unit, configured to send, to the corresponding coaxial network unit, the registration request sending time period generated by the generating unit, so that the coaxial network unit that receives the registration request sending time period sends the time according to the received registration request The segment sends a registration request to the optical line terminal.

A coaxial network unit device, comprising:

a receiving unit, configured to receive a registration request sending time period sent by the converter, where the registration request sending time period is a time period for identifying that the coaxial network unit can send a registration request to the optical line terminal; wherein, the different coaxial There is no overlap time between the time periods during which the network element sends the registration request to the optical line terminal;

And a sending unit, configured to send a registration request to the optical line terminal by selecting one time from the registration request sending time period acquired by the acquiring unit.

A system for avoiding registration conflicts, the system comprising a converter and a coaxial network unit device; Medium,

The converter is configured to: when monitoring the initialization authorization information sent by the optical line terminal, acquire a coaxial network unit that has completed initial access in the converter and does not complete registration at the optical line terminal; according to the monitored And the initialization authorization information is generated, and the registration request sending time period corresponding to each of the coaxial network units is generated; and the generated registration request sending time period is sent to the corresponding coaxial network unit, so that the same time period of receiving the registration request is sent. The axis network unit sends a registration request to the optical line terminal according to the received registration request sending time period;

The coaxial network unit device is configured to receive a registration request sending time period sent by the converter, where the registration request sending time period is used to identify a time period during which the coaxial network unit sends a registration request to the optical line terminal; There is no overlap time between different time periods during which the different coaxial network units send the registration request to the optical line terminal; and one time from the registration request transmission time period is sent to the optical line terminal to send a registration request.

A method, device and system for avoiding registration conflicts provided by an embodiment of the present invention, by allowing a converter to separately set an independent registration request transmission time period for each coaxial network unit, so that each coaxial network unit can be allocated to The registration request is sent in its own time period, so that the registration request sent by each coaxial network unit to the optical line terminal does not overlap in the time of the coaxial medium, thereby avoiding the conflict of the registration request in the coaxial medium. This in turn ensures that the registration request can be correctly transmitted to the coaxial network unit.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a schematic structural diagram of an EPOC system according to an embodiment of the present invention;

2 is a flowchart of a method for avoiding registration conflict in Embodiment 1 of the present invention;

3 is a flowchart of another method for avoiding registration conflict in Embodiment 1 of the present invention; FIG. 4 is a flowchart of another method for avoiding registration conflict in Embodiment 1 of the present invention; 5 is a flow chart of registration in an EPOC system according to Embodiment 1 of the present invention; FIG. 6 is a block diagram showing a composition of a converter in Embodiment 1 of the present invention;

Figure Ί is a block diagram showing the composition of another converter in Embodiment 1 of the present invention;

8 is a block diagram showing the composition of another converter in Embodiment 1 of the present invention;

9 is a block diagram showing the composition of another converter in Embodiment 1 of the present invention;

Figure 10 is a block diagram showing the composition of another converter in Embodiment 1 of the present invention;

11 is a block diagram of a component of a coaxial network unit device according to Embodiment 1 of the present invention; FIG. 12 is a block diagram of a system for avoiding registration conflict in Embodiment 3 of the present invention; FIG. 13 is a third embodiment of the present invention; Another block diagram of the system in which registration conflicts are avoided. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Example 1

The embodiment of the present invention provides a method for avoiding registration conflicts, which can be applied to an EPOC (EP0N Protocol over COAX) system architecture. As shown in FIG. 1, the system architecture includes light. Line terminal 0LT ( Opt ica l Line Termina l ), converter and coaxial network unit CNU (Coaxia l Network Uni t ) ₀ where the converter can be CLT (Coaxia l Line Termina l, coaxial line terminal) or MC ( Media conver ter, media converter).

Among them, an 0LT can be connected to at least one converter or 0NU, each converter can be connected to at least one CNU, which manages all converters, 0NU and CNU.

The optical signal is communicated between the 0LT and the CLT/MC, and the converter device contains some or all of the ONU (Opto Network Unit) functions. The transmission direction of the 0LT to the converter is the downlink direction, and the TDM mode is adopted, that is, the downlink data transmission is continuous, and the 0LT continuously broadcasts information to all the converters, and each converter selects its own data reception. The transmission from the converter to the 0LT is in the upstream direction, and the TDMA method is used, that is, the uplink data transmission is bursty, and different converters occupy Different uplink time slots or transmission windows, multiple converters share the uplink by means of time division multiplexing. The converter communicates with the CNU using electrical signals. The point-to-multipoint network topology is used to realize full service access of data, voice and video by using coaxial cable. The coaxial network unit CNU is placed in the user's home to act as a home terminal cat access user computer or an interactive set top box.

In this EPOC system, the converter has functions such as converting the optical domain (opt i ca l ) and the coaxial domain (coax). Based on the above system architecture, the embodiment of the present invention provides a method on the converter side, as shown in FIG.

101. When the converter listens to the initialization information 4 sent by the 0LT, obtains the CNU that has completed the initial access in the converter and has not completed registration at 0LT.

Wherein, the initial access finger converter on the converter completes the link connection with the CNU to complete the physical layer, and the CNU can communicate with the converter through the link connection.

The initialization information 4 transmitted by the 0LT is the GATE discovery information specified by the MPCP used in the EP0N network. Also, the converter can monitor all MPCP information sent by the 0LT.

The method for obtaining the CNU that has completed the initial access in the converter and is not registered at the OLT can be implemented by searching for a registration or initial access state of the CNU in the database of the converter, and the present invention The embodiment does not limit this.

It is worth noting that if all CNUs do not satisfy the CNU that has completed the initial access and the registration is not completed at 0LT, the converter can choose to abandon this registration and use this time period. In the behavior of data transmission and other actions.

102. The converter generates, according to the monitored initialization authorization information, a registration request sending time period corresponding to each CNU.

The initialization 4 authorization information includes discovery window information, where the discovery window information includes a start time and a window length of the discovery window, and the discovery window is a time period provided by the 0LT for all CNUs for registration, and 0NU is at this time. The segment can be registered by sending a registration request to the 0LT. The generating the requesting time period of the registration request corresponding to the CNU may be implemented by the following method, as shown in FIG. 3, specifically:

1 021. The converter acquires the discovery window information from the monitored initialization authorization information.

1 022. The converter selects at least one CNU from the CNU that is currently registered by itself and is not registered in the 0LT.

It should be noted that, the number of CNUs selected from the CNU currently registered in the converter and not registered in the 0LT can be selected according to a preset number, for example, each discovery window is preset. Only one CNU, only one CNU can be selected for this selection. The converter can also select the number according to the actual situation. The embodiment of the present invention does not limit the number of CNUs selected.

1 023. The converter allocates, according to the start time of the discovery window and the window length, a corresponding registration request sending time period for at least one selected CNU.

There is no overlap time between every two CNU corresponding registration request sending time periods, and the sum of the lengths of all allocated registration request sending time periods does not exceed the window length.

The registration request sending time period may be represented by a combination of two parameters, a start time and a time length, where the start time may be set to an absolute time or may be set to a relative delay from the discovery window. The length of time can be set to an integer multiple of the symbol Symbo l. The description of the registration request transmission time period is merely an example. In the technical field, any method that can be used to represent the time period can be applied to the embodiment of the present invention. For example, the embodiment can also use the start. The combination of the time and the end time represents the time period of the registration request transmission, which is not limited by the embodiment of the present invention.

1 03. The converter sends the generated registration request sending time period to the corresponding CNU, so that the CNU receiving the registration request sending time period sends a registration request to the 0LT according to the received registration request sending time period.

The sending the generated registration request sending time period to the corresponding CNU may be implemented by the following three methods, including:

The first method: generating a sending time period control according to the generated registration request sending time period The information is sent to the corresponding coaxial network unit. The time when the sending time period control information reaches the corresponding coaxial network unit is earlier than the starting time of the discovery window.

The second method: carrying the generated registration request sending time period in the initialization authorization information, and sending the initialization authorization information carrying the generated registration request sending time period to the corresponding coaxial network unit.

The third method: according to the generated registration request sending time period, modifying the discovery window information in the initialization authorization information, and transmitting the modified initialization authorization information to the corresponding coaxial network unit.

It should be noted that, in the above first method, since the transmission time period control information sent by the converter to the CNU includes only the information of the registration request transmission time period, and does not include the initialization authorization information sent by the OLT, the method of use is used. When the step 1 03 is implemented, if the CNU must obtain the initialization authorization information during the registration process to initiate the registration process to the 0LT, the initialization of the monitored 0LT transmission needs to be performed before or at the same time as step 103. The authorization information is forwarded to the selected at least one CNU. If the CNU can initiate the registration process to the 0LT without obtaining the initialization authorization information during the registration process, the initialization authorization information does not need to be sent.

Further, it is worth noting that the method for ensuring that the sending time period control information reaches the corresponding coaxial network unit is earlier than the starting time of the discovery window may be based on the start time of the discovery window or Determining the time, determining the sending time of the sending time period control information; and transmitting the sending time period control information to the corresponding coaxial network unit according to the determined sending time.

In the second method, the implementation method of carrying the generated registration request transmission time period in the initialization authorization information may carry the generated registration by adding a new field in the initialization authorization information. Request time period.

In this embodiment, according to the initialization 4 authorization information sent by the OLT, the respective registration request transmission time periods are generated for different CNUs, and sent to the corresponding CNU, so that each CNU can send the time period according to the corresponding registration request. Registration request sent to 0LT, thus avoiding registration please A collision occurs in the coaxial medium, thereby ensuring that the registration request can be correctly transmitted to the OLT.

Based on the system architecture shown in FIG. 1, the embodiment of the present invention further provides a method for avoiding registration conflicts. The method is a method on the CNU side. As shown in FIG. 4, the method includes:

201. The CNU receives a registration request sending time period sent by the converter, where the registration request sending time period is used to identify a time period during which the coaxial network unit sends the registration request to the optical line terminal.

There is no overlap time between the time periods that different coaxial network units can send the registration request to the optical line terminal.

202. The CNU sends a registration request to the 0LT by selecting a time from the registration request sending time period.

It should be noted that the registration request may be directly sent to the 0LT by the CNU, or may be sent to the converter first, and then sent to the 0LT after being processed by the converter.

In this embodiment, the CNU can send a registration request according to its corresponding registration request sending time period, thereby avoiding the registration request from colliding in the coaxial medium, thereby ensuring that the registration request can be correctly transmitted to the 0LT.

It should be noted that, in the above steps 1 01 to 103, steps 201 to 202 are applied to the CNU to 0LT registration process in the EPOC system. The embodiment of the present invention takes two CNUs (CNU1 and CNU2) as an example, and combines the above steps 1 01 to 103, steps 201 to 202, to specifically describe the registration process. As shown in FIG. 5, the process includes:

The S 1 0 converter sends registration information to CNU1 and CNU2, which includes discovery window information.

51 02, CNU1 and CNU2 initialize the access to the converter according to the discovery window information.

51 03. The converter responds to the initial access of CNU1 and CNU2 respectively.

At this point, CNU1 and CNU2 complete the initial access on the converter.

51 04. Converter monitors multipoint control protocol MPCP information sent by 0LT.

51 05, 0LT sends initialization access information to the converter, which includes discovery window information.

51 06. When the converter monitors the initialization access information, the CNU1 and the CNU2 that complete the initial access are respectively allocated a registration request transmission time period. 51 07. The CNU1 sends a registration request to the 0LT according to the allocated registration request transmission time period.

51 08. The CNU2 sends a registration request to the 0LT according to the allocated registration request transmission time period.

51 09, 0LT response CNU1 registration request.

51 1 0, 0LT response CNU2 registration request.

At this point, both CNU1 and CNU2 complete registration for 0LT.

A method for avoiding registration conflicts provided by an embodiment of the present invention, by allowing a converter to separately set a separate registration request transmission time period for each CNU, so that each CNU can send a registration request within a time period allocated to itself, so that The registration request sent by each CNU to the OLT does not overlap in the time in the COAX domain, thereby avoiding the registration request from colliding in the coaxial medium, thereby ensuring that the registration request can be correctly transmitted to the OLT.

Example 2

The embodiment of the present invention provides a converter. As shown in FIG. 6, the device includes: an obtaining unit 31, a generating unit 32, and a sending unit 33.

The obtaining unit 31 is configured to: when listening to the initialization authorization information sent by the optical line terminal, acquire a coaxial network unit that has completed initial access in the converter and has not completed registration at the optical line terminal.

The generating unit 32 is configured to generate, according to the monitored initialization authorization information, a registration request sending time period corresponding to each of the coaxial network units acquired by the acquiring unit.

The sending unit 33 is configured to send the registration request sending time period generated by the generating unit 32 to the corresponding coaxial network unit, so that the coaxial network unit that receives the registration request sending time period is configured according to the received registration request. The transmission time period sends a registration request to the optical line terminal.

Optionally, as shown in FIG. 7, the generating unit 32 includes: an obtaining module 321, a selecting module 322, and an allocating module 323.

The obtaining module 321 is configured to obtain discovery window information from the monitored initialization authorization information, where the discovery window information includes a start time of the discovery window and a window length.

The selecting module 322 is configured to select at least one coaxial network unit from the coaxial network unit that is currently registered in the converter and is not registered in the optical line terminal. The distribution module 323 is configured to allocate, according to the start time and the window length of the discovery window acquired by the obtaining module 321 , the corresponding registration request sending time period for the at least one coaxial network unit selected by the selecting module 322; There is no overlap time between each two coaxial network units corresponding to the registration request transmission time period, and the sum of the lengths of all allocated registration request transmission time periods does not exceed the window length.

Optionally, as shown in FIG. 8, the sending unit 33 includes: a generating module 331 and a first sending module 332.

The generating module 331 is configured to generate a sending period control information according to the generated registration request sending time period.

The first sending module 332 is configured to send the sending time period control information generated by the generating module 331 to the corresponding coaxial network unit, where the sending time period control information arrives at the time of the corresponding coaxial network unit Earlier than the start of the discovery window.

Optionally, the sending unit 33 is further configured to forward the initialization 4 authorized information sent by the intercepted optical line terminal to the selected at least one coaxial network unit.

Optionally, as shown in FIG. 9, the sending unit 33 further includes: a carrying module 333 and a second sending module 334.

The carrying module 333 is configured to carry the generated registration request sending time period in the initialization authorization information.

The second sending module 334 is configured to send the initialization authorization information that is generated by the carrying module 333 and that carries the generated registration request transmission period to the corresponding coaxial network unit.

Optionally, as shown in FIG. 10, the sending unit 33 further includes: a modifying module 335 and a third sending module 336.

The modifying module 335 is configured to modify the discovery window information in the initialization authorization information according to the generated registration request sending time period.

The third sending module 336 is configured to send the modified initialization authorization information generated by the modifying module 335 to the corresponding coaxial network unit.

The embodiment of the invention further provides a coaxial network unit device, as shown in FIG. The receiving unit 41 and the transmitting unit 42 are included.

The receiving unit 41 is configured to receive a registration request sending time period sent by the converter, where the registration request sending time period is a time period for identifying that the coaxial network unit can send the registration request to the optical line terminal, where different There is no overlap time between the time period during which the axis network unit sends the registration request to the optical line terminal;

The sending unit 42 is configured to send a registration request to the optical line terminal by selecting one time from the registration request sending period received by the receiving unit 41.

The embodiment of the present invention further provides a system for avoiding registration conflicts. As shown in FIG. 12, the system includes: a converter 51 and a coaxial network unit device 52.

The converter 51 is configured to: when listening to the initialization authorization information sent by the optical line terminal 53, acquire a coaxial network that has completed initial access in the switch 51 and has not completed registration at the optical line terminal 53. And generating, according to the monitored initialization authorization information, a registration request sending time period corresponding to each of the coaxial network units; sending the generated registration request sending time period to the corresponding coaxial network unit, so that the registration is received The coaxial network unit that requests the transmission time period sends a registration request to the optical line terminal 53 according to the received registration request transmission time period; the coaxial network unit device 52 is configured to receive the registration request transmission time period sent by the converter 51, The registration request transmission time period is used to identify a time period during which the coaxial network unit sends a registration request to the optical line terminal 53; wherein different coaxial network units send the optical line terminal 53 a time period during which the registration request can be used. There is no overlap time between them; from the time period of the registration request transmission A registration request is sent to the optical line terminal 53 at a time.

Optionally, as shown in FIG. 13, the system further includes: an optical line terminal 53.

The optical line terminal 53 is configured to send initialization authorization information to the converter 51; and receive a registration request sent by the coaxial network unit device 52.

An apparatus and system for avoiding registration conflicts provided by an embodiment of the present invention, by allowing a converter to separately set an independent registration request transmission time period for each coaxial network unit, so that each coaxial network unit can be allocated to itself Sending a registration request in a time period, so that the registration request sent by each coaxial network unit to the optical line terminal does not overlap in the time of the coaxial medium, thereby avoiding The registration request is exempted from colliding in the coaxial medium, thereby ensuring that the registration request can be correctly transmitted to the optical line terminal.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. . Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. A hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

claims

1. A method to avoid registration conflicts, which is characterized by including:

When monitoring the initialization authorization information sent by the optical line terminal, obtain the coaxial network unit that has currently completed initial access at the converter and has not completed registration at the optical line terminal;

According to the monitored initialization authorization information, the registration request sending time period corresponding to each of the coaxial network units is generated; the coaxial network unit in the registration request sending time period sends a message to the optical line terminal according to the received registration request sending time period. Registration request.

2. The method according to claim 1, wherein the discovery window information is obtained from the monitored initialization authorization information according to the monitored initialization, and the discovery window information includes the start of the discovery window. Time and window length;

Select at least one coaxial network unit from the coaxial network units currently registered with the converter and not registered with the optical line terminal;

According to the starting time and window length of the discovery window, the selected at least one coaxial network unit is assigned a corresponding registration request sending time period; wherein, between the corresponding registration request sending time periods of each two coaxial network units There is no overlapping time, and the sum of the time lengths of all allocated registration request sending time periods does not exceed the window length.

3. The method according to claim 1 or 2, characterized in that, sending the generated registration request sending time period to the corresponding coaxial network unit includes:

Generate sending time period control information according to the generated registration request sending time period; Send the sending time period control information to the corresponding coaxial network unit; wherein, the sending time period control information reaches the corresponding coaxial network unit The time of the axis network unit is earlier than the start time of the discovery window.

4. The method according to claim 3, further comprising:

Forward the initialization authorization information sent by the monitored optical line terminal to the selected destination. One less coaxial network unit.

5. The method according to claim 1 or 2, characterized in that, sending the generated registration request sending time period to the corresponding coaxial network unit includes:

The generated registration request sending time period is carried in the initialization authorization information, and all network units are included;

Alternatively, modify the discovery window information in the initialization authorization information according to the generated registration request sending time period, and send the modified initialization authorization information to the corresponding coaxial network unit.

6. A method to avoid registration conflicts, which is characterized by including:

Receive the registration request sending time period sent by the converter, the registration request sending time period is used to identify the time period that the coaxial network unit can use to send the registration request to the optical line terminal; wherein, different coaxial network units send registration requests to the optical line terminal There is no overlap between the time periods that can be used to send registration requests;

Select a time from the registration request sending time period to send the registration request to the optical line terminal.

7. A converter, characterized by including:

The acquisition unit is used to acquire the current coaxial network unit that has completed initial access at the converter and has not completed registration at the optical line terminal when monitoring the initialization authorization information sent by the optical line terminal;

Generating unit, configured to generate the obtained information obtained by the obtaining unit according to the monitored initialization authorization information.

The coaxial network unit, so that the coaxial network unit that receives the registration request sending time period according to the

8. The device according to claim 6 or 7, characterized in that the generating unit includes: an acquisition module, configured to acquire discovery window information from the monitored initialization authorization information, and the discovered window information includes a discovery window The starting time and window length;

A selection module configured to select at least one coaxial network unit from the coaxial network units currently registered with the converter and not registered with the optical line terminal; An allocation module, configured to allocate corresponding registration requests to at least one coaxial network unit selected by the selection module according to the starting time and window length of the discovery window obtained by the acquisition module.

length.

9. The device according to claim 8, wherein the sending unit includes: a generating module, configured to generate sending time period control information according to the generated registration request sending time period;

The first sending module is configured to send the sending time period control information generated by the generating module to the corresponding coaxial network unit; wherein, the time when the sending time period control information arrives at the corresponding coaxial network unit is earlier than The starting time of the discovery window.

10. The device according to claim 6 or 7, characterized in that the sending unit is further configured to forward the initialization authorization information sent by the monitored optical line terminal to the selected at least one coaxial network unit.

11. The device according to claim 8, wherein the sending unit further includes: a carrying module, configured to carry the generated registration request sending time period in the initialization authorization information;

The second sending module is used to send the initialization authorization information generated by the carrying module and carrying the generated registration request sending time period to the corresponding coaxial network unit;

12. The device according to claim 8, wherein the sending unit further includes: a modification module, configured to modify the discovery window information in the initialization authorization information according to the generated registration request sending time period;

The third sending module is used to send the modified initialization authorization information generated by the modification module to the corresponding coaxial network unit.

1 3. A coaxial network unit device, characterized by including:

The receiving unit is configured to receive the registration request sending time period sent by the converter. The registration request sending time period is used to identify the time that the coaxial network unit can use to send the registration request to the optical line terminal. segments; among them, there is no overlapping time between the time segments that can be used;

The sending unit is configured to select a time from the registration request sending time period received by the receiving unit to send the registration request to the optical line terminal.

14. A system for avoiding registration conflicts, characterized in that the system includes a converter and a coaxial network unit device; wherein,

The converter is configured to, when monitoring the initialization authorization information sent by the optical line terminal, obtain the coaxial network unit that has currently completed initial access at the converter and has not completed registration at the optical line terminal; according to the monitored The initialization authorization information generates corresponding notes for each of the coaxial network units so that the coaxial network unit that receives the registration request sending time period sends a registration request to the optical line terminal according to the received registration request sending time period;

The coaxial network unit device is configured to receive a registration request sending time period sent by the converter. The registration request sending time period is used to identify the time period in which the coaxial network unit can send a registration request to the optical line terminal. There is an overlapping time; select a time from the registration request sending time period to send the registration request to the optical line terminal.

15. The system according to claim 14, characterized in that the system further includes: an optical line terminal, used to send initialization authorization information to the converter; and receive a registration request sent by the coaxial network unit device.