WO2012095040A2 - 无源光网络中数据的传输方法、用户侧设备和系统 - Google Patents
无源光网络中数据的传输方法、用户侧设备和系统 Download PDFInfo
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- WO2012095040A2 WO2012095040A2 PCT/CN2012/071254 CN2012071254W WO2012095040A2 WO 2012095040 A2 WO2012095040 A2 WO 2012095040A2 CN 2012071254 W CN2012071254 W CN 2012071254W WO 2012095040 A2 WO2012095040 A2 WO 2012095040A2
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2212/00—Encapsulation of packets
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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
- H04Q11/0071—Provisions for the electrical-optical layer interface
Definitions
- the present invention relates to communications technologies, and in particular, to a data transmission method in a passive optical network, a user side device, and a passive optical network system.
- PON Passive Optical Network
- OLT Optical Line Terminal
- ODN Optical Distribution Network
- ONU Optical Network Unit
- the OLT is an aggregation device for terminating the PON protocol that is set at the central office.
- the ONU is a user-side device that is located on the user side and provides various interfaces for the user equipment.
- the ONU can also be regarded as an optical network terminal.
- the following is abbreviated as: ONT.
- the ONU and the ONT can be collectively referred to as a user-side device.
- the user-side device provides a network connection for the user equipment by setting multiple ports.
- the ODN is used to provide a physical channel for communication between the OLT and the ONU.
- Ethernet Passive Optical Network hereinafter referred to as ⁇
- GPON Gigabit Passive Optical Network
- the above-mentioned passive optical network can support various types of services, such as High Speed Internet (HSI) services, Internet Protocol Television (hereinafter referred to as IPTV) services, and Internet voice (Voice).
- Over Internet Protocol (hereinafter referred to as VoIP) service support on the user side device of the PON, there are multiple ports for connecting to the user equipment, each for each port.
- a type of service is configured with a service channel.
- the service channel is connected to the OLT.
- the service is carried between the user-side device and the OLT.
- Each service channel needs to be configured with corresponding service resources. For example, as shown in Figure 1, each port can support three types of services, and a total of nine service channels are established.
- the service channels numbered 1 to 3 are ports 1 to The service channel of the HSI service on port 3, the service channel numbered 4 to 6 is the service channel of the IPTV on port 1 to port 3, and the service channel numbered 7 to 9 is the service channel of the VoIP service on port 1 to 3. .
- 18 service channels that need to be established are denoted by numbers 1 to 18.
- a port on a user-side device is connected to only one type of service in a certain period of time.
- the service channel configured for other types of services is idle.
- the waste of service resources corresponding to the service channel in the idle state Therefore, in the existing PON technology, there is a waste of service resources between the user side device and the OLT.
- the embodiment of the invention provides a data transmission method in a passive optical network, a user side device and a passive optical network system, and a computer program product for avoiding service resources between the user side device and the OLT in the PON technology. waste.
- An aspect of the embodiments of the present invention provides a method for transmitting data in a passive optical network, where one or more user-side service aggregation modules are disposed in a user-side device, and the user-side service aggregation module is configured to process a For a specific type of service, the method includes:
- the user-side service aggregation module receives the uplink service data from the port of the user-side device, where the uplink service data is the uplink service data corresponding to the service type processed by the user-side service aggregation module;
- the user-side service aggregation module acquires the MAC address of the user equipment, the identifier information of the network, and the identifier information of the service channel of the network side according to the received uplink service data, and establishes a MAC address of the user equipment, and the network. a mapping relationship between the identifier information and the identifier information of the network side service channel and the identifier of the user side service channel;
- the user-side service aggregation module encapsulates the uplink service data, and transmits a specific service between the user-side service aggregation module of the user-side device and an optical line terminal connected thereto by using the network-side service channel.
- a type of channel for business data is a type of channel for business data.
- An aspect of the embodiment of the present invention further provides another method for transmitting data in a passive optical network, where one or more user-side service aggregation modules are disposed in the user-side device, where the user
- the side service aggregation module is configured to process a service of a specific service type, and the method includes: the user side service aggregation module receives downlink service data sent by the optical line terminal from the network side service channel, where the network side service channel is used. Transmitting service data of a specific service type between the user side service aggregation module and the optical line terminal of the user side device;
- the user-side service aggregation module decapsulates the downlink service data, and obtains, according to the downlink service data, a MAC address of the user equipment, network identifier information, and network side service channel identifier information, and according to the user equipment
- the MAC address, the identifier information of the network, and the identifier information of the network side service channel are used to obtain the identifier of the corresponding user-side service channel from the saved mapping relationship, where the user-side service channel is the port of the user-side device and the user A channel for transmitting service data of a specific service type between side service aggregation modules;
- the user-side service aggregation module sends the decapsulated downlink service data to the port of the user-side device by using the user-side service channel.
- Another aspect of the present invention provides a user equipment, including at least two ports and one or more user side service aggregation modules, where the port is configured to receive uplink service data from a user, according to the uplink service.
- the service feature of the data obtains the service type, and the uplink service data is sent to the corresponding user-side service aggregation module by using the user-side service channel corresponding to the service type; the user-side service aggregation module is configured to process a specific service type.
- Business including:
- a first receiving unit configured to receive, by the user-side service channel, the uplink service data from a port connected thereto, where a service type of the uplink service data corresponds to a service type processed by the user-side service aggregation module,
- the user-side service channel is configured to transmit service data of a specific service type between a port of the user-side device and a user-side service aggregation module;
- a first mapping relationship establishing unit configured to acquire, according to the uplink service data, a MAC address of the user equipment, network identifier information, and network side service channel identifier information, and establish a MAC address of the user equipment, and identifier of the network a mapping relationship between the information and the identification information of the network side service channel and the identifier of the user side service channel;
- the first sending unit is configured to encapsulate the uplink service data, and send the encapsulated uplink service data by using the network side service channel, where the network side service channel is used for the user side service aggregation module of the user side device Transmitting service data of a specific service type with an optical line terminal; a second receiving unit, configured to receive downlink service data sent by the optical line terminal from the network side service channel;
- a first querying unit configured to decapsulate the downlink service data, and obtain, according to the downlink service data, a MAC address of the user equipment, network identifier information, and identifier information of the network side service channel, and according to the user Obtaining, by the MAC address of the device, the identifier information of the network, and the identifier information of the service channel of the network side, the identifier of the service channel of the user side is obtained from the saved mapping relationship;
- a second sending unit configured to send the decapsulated downlink service data to the port connected to the user-side service channel by using the user-side service channel.
- a further aspect of the embodiments of the present invention provides a passive optical network system, including an optical line terminal, and two or more user side devices connected to the optical line terminal, where the user side device adopts the user side device.
- a still further aspect of an embodiment of the present invention provides a computer program product comprising computer program code for causing a computer unit to perform the actions of the method 3 when a computer unit executes the computer program code.
- the technical solution provided by the present invention is that two or more user-side service aggregation modules are configured in the user-side device of the PON, and the user-side service aggregation module is configured to process services of a specific service type, so that when performing uplink service data transmission,
- the user first receives the uplink service data from the port through the user-side service channel, so that the uplink service data of the same service type of each port can be aggregated to the user-side service aggregation module, and further, the service aggregation module passes the network-side service channel.
- the service is sent to the OLT, so that only one service channel needs to be established for the same service type between the user-side device and the OLT.
- the network-side service aggregation module can receive various service types through the dedicated network-side service channel, and The user-side service aggregation module on the user-side device aggregates the services of the same service type, thereby effectively reducing the waste of service resources between the user-side device and the OLT.
- FIG. 1 is a schematic structural diagram 1 of a passive optical network in the prior art
- FIG. 2 is a schematic structural diagram 2 of a passive optical network in the prior art
- FIG. 3 is a schematic flow chart of a method for transmitting data in a passive optical network according to an embodiment of the present invention
- FIG. 4 is a schematic flow chart of another method for transmitting data in a passive optical network according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of an apparatus for a passive optical network system according to an embodiment of the present invention
- FIG. 6 is a schematic flowchart of a data transmission method performed by an optical line terminal according to an embodiment of the present invention
- FIG. 7 is a schematic flowchart of another method for transmitting data executed by an optical line terminal according to an embodiment of the present invention.
- FIG. 8 is a schematic diagram of a device of a passive optical network system according to another embodiment of the present invention
- FIG. 9 is a schematic structural diagram of a user-side service aggregation module according to an embodiment of the present invention.
- FIG. 10 is a schematic structural diagram of a network side service aggregation module according to an embodiment of the present invention. detailed description
- FIG. 3 is a schematic diagram of data transmission in a passive optical network according to an embodiment of the present invention.
- one or more user-side service aggregation modules are configured in the user-side device, and each of the user-side service aggregation modules is configured to process a service of a specific service type.
- Step 101 The user-side service aggregation module receives the uplink service data from the user-side service channel, where the service type of the uplink service data corresponds to the service type processed by the user-side service aggregation module, where the user-side service channel is used to Transmitting service data of a specific service type between the port of the user side device and the user side service aggregation module;
- Step 102 The user-side service aggregation module acquires the MAC address of the user equipment, the identifier information of the network, and the identifier information of the service channel of the network side according to the uplink service data, and establishes a MAC address of the user equipment and identifier information of the network. And a mapping relationship between the identifier information of the network side service channel and the identifier of the user side service channel;
- Step 103 The user-side service aggregation module encapsulates the uplink service data, and sends the encapsulated uplink service data by using the network-side service channel, where the network-side service channel is used for the user-side service convergence module and the optical line of the user-side device. Transmit service data of a specific service type between terminals.
- one or more user-side service aggregation modules are disposed in the user-side device of the PON, and each user-side service aggregation module is configured to process a service of a specific service type, so that the uplink service is performed.
- the user When the data is transmitted, the user first receives the uplink service data from the port through the user-side service channel, so that the uplink service data of the same service type of each port can be aggregated to the corresponding user-side service aggregation module that processes the service type, and further
- the user-side service aggregation module sends the service channel to the OLT through the network-side service channel, so that only one service channel needs to be established for the same service type between the user-side device and the OLT, thereby effectively reducing the user-side device and the OLT. A waste of business resources between.
- each of the user-side service aggregation modules receives the uplink service data of the specific service type, that is, the uplink service data corresponding to the processing capability.
- the service type for the uplink service data may be The port is obtained, and the foregoing step 101 may further include:
- the port of the user-side device obtains the service type according to the service feature of the uplink service data.
- the port of the user-side device sends the uplink service data to the corresponding user-side service aggregation module by using the user-side service channel corresponding to the service type.
- the specific service type may be one of an HSI service, an IPTV service, or a VoIP service, that is, three user-side service aggregation modules may be simultaneously included in the user-side device, and the foregoing three types are respectively processed.
- Service such as the first user-side service aggregation module
- the HIS service is processed
- the second user-side service aggregation module processes the IPTV service
- the third user-side service aggregation module processes the VoIP service.
- the corresponding user-side service aggregation module can also be added.
- different user-side service aggregation modules may be implemented by different hardware entities or by different function instances in the same hardware entity.
- the user-side device includes two or more ports, and each port supports various service types.
- a port is established between each service type and a corresponding user-side service aggregation module.
- the user-side service channel enables the port to send the uplink service data to the corresponding user-side service aggregation module after the service type is identified.
- the service characteristics of the packets in different types of service data are different, for example, the service domain identifiers of the Ethernet encapsulation or the IP encapsulation are different.
- the VLAN value can be set to 11
- the VLAN value can be set to 12.
- the value of the VLAN can be set to 13, thus making it easy for the port to identify the service type based on the service characteristics.
- the user-side service aggregation module learns the forwarding entry in the process of forwarding the uplink service data, that is, obtains the MAC address of the user equipment, the identifier information of the network, and the identifier information of the service channel of the network side, and the foregoing network identifier.
- the information of the network side service channel can be represented by a GEM id or an LLID, and the MAC address of the user equipment, the network identification information, and the identification information of the network side service channel are further established.
- the mapping between the identifiers of the channels is used to perform the correct forwarding when the downlink service data is transmitted.
- the MAC address of the user equipment can be regarded as the source address of the uplink service data, and the identifier information of the network. It is the identifier of the target network for the uplink service data transmission, which is related to the service type.
- the MAC address of the user equipment can be regarded as the destination address of the downlink service data.
- the MAC address of the user equipment may be the MAC address of the set top box.
- the uplink service data is encapsulated.
- the user-side service aggregation module performs the Gigabit passive optical network encapsulation mode (GPON) on the uplink service data.
- GPON Gigabit passive optical network encapsulation mode
- GEM Gigabit passive optical network encapsulation mode
- the user-side service aggregation module performs logical link identification on the uplink service data (Logical) Link Identifier, hereinafter referred to as: LLID) mode encapsulation.
- LLID uplink service data
- the service feature of the uplink service data may be further processed to be differentiated and sent by different user equipments, where The service priority of the user equipment can be rewritten to distinguish different user equipments, or the service features can be rewritten, for example, the service domain identifier is rewritten.
- the VLAN value corresponding to the HSI service is modified.
- the VLAN value corresponding to the IPTV service is changed to 112, and the VLAN value corresponding to the VoIP service is changed to 113.
- the VLAN value corresponding to the HSI service is changed to 211, and the VLAN value corresponding to the IPTV service is modified to 212.
- the VLAN value corresponding to the VoIP service is modified to 213, so that the foregoing service features can represent not only the service type but also different user equipments.
- FIG. 4 is a schematic flowchart of a data transmission method of another passive optical network according to an embodiment of the present invention.
- the user side device is configured with one or more user-side service aggregation modules, and each user-side service aggregation module is configured to process a service of a specific service type.
- the method includes the following steps:
- Step 201 The user-side service aggregation module receives downlink service data sent by the optical line terminal from the network-side service channel, where the network-side service channel is used to transmit a specific service type between the user-side service aggregation module and the optical line terminal of the user-side device.
- Business data ;
- Step 202 The user-side service aggregation module decapsulates the downlink service data, and obtains a MAC address of the user equipment, network identifier information, and network side service channel identifier information, and according to the MAC address of the user equipment, The identifier information of the network and the identifier information of the service channel on the network side are used to obtain the identifier of the service channel of the user side from the mapping relationship, where the user service channel is used to transmit a specific service type between the port of the user side device and the user side service aggregation module.
- Business data
- Step 203 The user-side service aggregation module sends the de-encapsulated downlink service data to the port by using the user-side service channel.
- a user-side service aggregation module for processing a service of a specific service type is set in the user-side device, and a network-side service for transmitting service data of a specific service type is set between the optical line terminal and the optical line terminal.
- Channel so that it needs to be transmitted to any port
- the service data of the line can be transmitted from the network side service channel to the user side service aggregation module according to the service type. Only the network side service channel with the same number of service types can be set between the user side device and the optical line terminal. The number of service channels between the user equipment and the optical line terminal is effectively reduced, and the waste of service resources between the two is reduced.
- the specific service type may also be one of an HSI service, an IPTV service, or a VoIP service
- three user-side service aggregation modules may be separately configured for the foregoing three services in the user-side device. And establish three corresponding network side service channels.
- the decapsulated downlink may be sent to all ports connected to the user-side service aggregation module by broadcast. Business data.
- the downlink service data is forwarded according to the forwarding entry learned in the uplink data processing process.
- the user-side service aggregation module does not find the identifier of the corresponding first service tunnel in the mapping relationship, the broadcast mode is followed.
- the above downlink service data is sent to all ports.
- the decapsulation of the downlink service data in the step 202 of the foregoing embodiment may be specifically performed by the user-side service aggregation module to perform decapsulation of the downlink service data in a GEM mode; or
- the user-side service aggregation module performs decapsulation of the downlink service data in an LLID mode.
- the method before the decapsulated downlink service data is sent to the port in step 203, the method further includes processing the service feature in the downlink service data, where the process is in the uplink service data.
- the service feature processing corresponds to that, when the uplink service data transmission is performed, if the service priority and the VLAN value are rewritten, the step is rewritten to the original value.
- FIG. 5 is a schematic diagram of a device of a passive optical network system according to an embodiment of the present invention.
- the user side device in this embodiment is an ONT, and may also be an ONU or other similar device, as shown in FIG. 5, in each ONT.
- the number of user-side service aggregation modules is supported by the ONT.
- the number of business types corresponds. Specifically, the ONT1 in the figure is taken as an example.
- the three ports may provide one or more of an HSI service, an IPTV service, or a VoIP service, and three user-side service aggregation modules are used for one of the services.
- the service of the type is processed.
- the user-side service channel is configured between each port and each user-side service aggregation module to perform service data transmission of the service type corresponding to the user-side service aggregation module.
- the three ports can be configured. Port 1, port 2 and port 3 are used, and the user side service channels can be denoted by reference numerals 1 to 9, respectively.
- each user-side service aggregation module is configured with a corresponding network-side service channel and the OLT, and the three network-side service channels are respectively represented by GEM101, GEM102, and GEM103, which are specifically processing modules corresponding to the service in the OLT.
- the connection can be characterized by the identification information of the local area network, for example, VLAN 1 indicates an HSI service, VLAN 2 indicates an IPTV service, and VLAN 3 indicates a VoIP service. In addition to the VLAN, it can also be represented by Pseudo Wire Emulation Edge-to-Edge (PWE3) or Virtual Private Lan Service (VPLS).
- PWE3 Pseudo Wire Emulation Edge-to-Edge
- VPLS Virtual Private Lan Service
- the uplink service data is transmitted, for example, the HSI service, and the port 1 of the PC is connected, the data of the PC reaches the first user-side service aggregation module through the user-side service channel labeled 1. Then, the network-side service channel GEM101 is sent to the corresponding service processing module VLAN1 in the OLT, that is, the HSI service module.
- the service aggregation module is a first user-side service aggregation module, and then passes through the network-side service channel GEM 101 to the corresponding service processing module VLAN 1 in the OLT, that is, the HSI service module. If the PC is connected to the ONT port 3, the PC data passes.
- the user-side service channel numbered 3 reaches the same user-side service aggregation module, and then passes through the network-side service channel GEM101 to the corresponding HSI service module in the OLT.
- the uplink service data of the IPTV reaches the second user-side aggregation module through the user-side service channel numbered 4, and then passes through the network-side service channel GEM102 to the OLT.
- the corresponding service processing module that is, the IPTV service module represented by VLAN 2; assuming that the set-top box is connected to the port 2 of the ONT, the uplink service data of the IPTV reaches the same user-side aggregation module through the user-side service channel numbered 5, and then passes through the network side.
- the corresponding service processing module of the service channel GEM102 to the OLT that is, the IPTV service module represented by VLAN2; assume that the set-top box is connected to the port 3 of the ONT, and the IPTV is
- the uplink service data is transmitted to the same user-side aggregation module through the user-side service channel numbered 6, and then through the network-side service channel GEM102 to the corresponding service processing module in the OLT, that is, the IPTV service module represented by VLAN 2.
- the VoIP service terminal-integrated access device IAD
- the VoIP uplink service data reaches the third through the user-side service channel numbered 7.
- the user-side service aggregation module passes the network-side service channel GEM103 to the corresponding service processing module in the OLT, that is, the VoIP service module represented by VLAN 3. If the IAD is connected to the port 2 of the ONT, the uplink service data of the VoIP will pass the number 8
- the user-side service channel reaches the same user-side service aggregation module, and then passes through the network-side service channel GEM103 to the corresponding service processing module in the OLT, that is,
- the VoIP service module indicated by VLAN 3 assuming that the IAD is connected to the port 3 of the ONT, the VoIP uplink service data will reach the same user-side service aggregation module through the user-side service channel numbered 9, and then through the network-side service channel GEM103 to the OLT.
- the corresponding service processing module that is, the VoIP service module represented by VLAN 3.
- the downlink service data for the HSI service will reach the corresponding first user-side service aggregation module in the ONT through the network-side service channel GEM101, and the first user-side service aggregation module will pass the number 1, 2 Or the user-side service channel of the user network (3) sends the packet to the PC connected to the port.
- the specific first user-side service aggregation module can determine which user-side service channel is sent by searching the forwarding entry, but fails to pass the forwarding entry.
- the downlink service data can be sent to all the user-side service channels connected to the user-side service aggregation module in broadcast mode; and the downlink service data for the IPTV service passes the network-side service.
- the channel GEM 102 reaches the corresponding second user-side service aggregation module in the ONT, and the second user-side service aggregation module sends the user-side service aggregation module numbered 4, 5 or 6 to the set-top box connected to the port;
- the downlink service data of the VoIP service passes through the network side service channel GEM 103.
- the third user-side service aggregation module in the ONT is sent to the IAD connected to the port through the user-side service channel numbered 7, 8, or 9.
- FIG. 6 is a schematic flowchart of a data transmission method performed by an optical line terminal according to an embodiment of the present invention, where One or more network-side service aggregation modules are disposed in the optical line terminal, and each network-side service aggregation module is configured to process a service of a specific service type, and is connected to a corresponding service processing module in the optical line terminal. Based on the steps shown in Figure 3, the method further includes the following steps:
- Step 301 The network-side service aggregation module receives the uplink service data sent by the user-side device from the network-side service channel, where the network-side service channel is used to transmit service data of a specific service type between the user-side device and the optical line terminal.
- Step 302 The network side service aggregation module decapsulates the uplink service data, and obtains a MAC address of the user equipment, network identifier information, and network side service channel identifier information, and establishes a MAC address of the user equipment and a network. a mapping relationship between the identifier information and the identifier information of the network side service channel;
- Step 303 The network side service aggregation module sends the decapsulated uplink service data to the connected service processing module.
- the network-side service aggregation module in this embodiment receives the service data of the service type corresponding to the service type of the service through the dedicated network-side service channel.
- the user-side service aggregation module on the user-side device aggregates services of the same service type.
- the network-side service aggregation module can also send uplink services of the same service type sent by multiple user-side devices.
- the data is aggregated. For the service of any service type, only one service channel is established between the corresponding network-side service aggregation module in the OLT and the user-side service aggregation module in the user-side device.
- the technical solution in this embodiment can reduce the OLT.
- the number of service channels to be configured between the ONT and the ONU to reduce the complexity of the service channel configuration, and to improve the efficiency of configuring the service channel in the channel configuration, and effectively reduce the service by using the user-side service aggregation module on the user-side device. Waste of resources.
- the specific service type in the foregoing embodiment of the present invention may also be, for example, one or more of an HSI service, an IPTV service, or a VoIP service.
- the network side service aggregation module may also obtain the MAC address of the user equipment, the network identification information, and the network side service channel identification information from the uplink service data, and establish the MAC address of the user equipment.
- the mapping relationship between the identification information of the network and the identification information of the service channel on the network side, that is, the learning forwarding entry, is used to perform downlink service data transmission.
- the network side service aggregation module in the step 302 of the foregoing embodiment may decapsulate the uplink service data, and may include the following two situations:
- the network side service aggregation module performs GEM decapsulation on the uplink service data, or the network side service aggregation module performs decapsulation of the uplink service data in the LLID mode.
- the service feature of the uplink service data may be further processed for the decapsulated uplink service data, so that the distinguishing is sent by different user equipment, where The service priority of the user equipment is rewritten to distinguish different user equipments, or the service features are rewritten, for example, the service domain identifier is rewritten.
- the VLAN value corresponding to the HSI service is changed to 111.
- the VLAN value corresponding to the IPTV service is changed to 112, and the VLAN value corresponding to the VoIP service is changed to 113.
- the VLAN value corresponding to the HSI service is changed to 211, and the VLAN value corresponding to the IPTV service is changed to 212, and the VoIP service is modified.
- the corresponding VLAN value is modified to 213, so that the foregoing service features can represent not only the service type but also different user equipments.
- FIG. 7 is a schematic flowchart of another method for transmitting data according to an optical line terminal according to an embodiment of the present invention.
- one or more network-side service aggregation modules are disposed in an optical line terminal, and each network side is provided.
- the service aggregation module is configured to process a service of a specific service type and is connected to a service processing module of a corresponding service type.
- the method is a downlink processing process corresponding to the previous embodiment, and includes the following steps:
- Step 401 The network side service aggregation module receives downlink service data sent by the service processing module.
- Step 402 The network-side service aggregation module obtains the MAC address of the user equipment and the identifier information of the network from the downlink service data, and obtains the saved mapping relationship according to the MAC address of the user equipment and the identifier information of the network. Corresponding information of the network side service channel;
- Step 403 After the network-side service aggregation module encapsulates the downlink service data, the network-side service channel sends the encapsulated downlink service data to the user-side service aggregation module of the user-side device, where the network-side service channel is used to The service data of a specific service type is transmitted between the user side service aggregation module of the user side device and the network side service aggregation module of the optical line terminal.
- the network side service aggregation module is configured on the OLT, and the downlink service data sent by the specific service processing module of the optical line terminal through the first service channel is received, and is sent to the user side of the user side device through the network side service channel.
- the service aggregation module sends the service data of the specific service type between the user-side service aggregation module of the user-side device and the network-side aggregation device of the optical line terminal, so that each of the OLT and the user-side device is
- the service type of the service type can be established only by establishing a service channel.
- the specific service type in the above embodiment of the present invention may be, for example, one or more of HSI service, IPTV service, or VoIP.
- the encapsulated downlink service data may be sent to all the user-side service aggregation modules connected thereto in a broadcast manner.
- the network side service aggregation module in the step 403 of the foregoing embodiment of the present invention encapsulates the downlink service data, and the network side service aggregation module enters the GEM encapsulation of the downlink service data.
- the network side service aggregation module encapsulates the downlink service data in the LLID mode.
- the downlink service data before the encapsulation may further include: switching the service feature in the downlink service data, and processing the service feature according to the service requirement, where the process is in the uplink service data.
- the service feature processing that is, when the uplink service data transmission is performed, if the service priority and the VLAN value are rewritten, the step is rewritten to the original value.
- FIG. 8 is a schematic diagram of an apparatus of a passive optical network system according to another embodiment of the present invention.
- the network includes at least two user side devices, as shown in the figure, ONT1 and ONT2, respectively, where ONT1 is performed.
- Three user-side service aggregation modules are set on the ONT1 to The three types of services supported by the ONT are also provided with three corresponding network-side service aggregation modules on the OLT to correspond to all the services supported by the ONTs connected to the OLT. Specifically, the three user-side service aggregation modules are respectively used.
- the service of a service type is set, and is set between each port and each user-side service aggregation module.
- the three ports can be represented by port 1, port 2, and port 3.
- the user-side service channel can be labeled with 1 ⁇ 9 said.
- a corresponding network-side service channel is connected with a corresponding network-side service aggregation module in the OLT, and three network-side service channels are respectively represented by GEM101, GEM 102, and GEM103, and, in addition,
- the setting of the ONT2 is the same as that of the ONT1.
- the network-side service channels for the different service types between the user-side aggregation module and the network-side service aggregation module are represented by GEM 104, GEM105, and GEM106, respectively, to distinguish them from GEM101-103.
- a first service channel is set between each network-side service aggregation module and the corresponding service processing module.
- the service processing module in the OLT can be characterized by the identification information of the local area network, for example, VLAN 1 indicates HSI. Service, VLAN 2 indicates IPTV service, and VLAN 3 indicates VoIP service.
- the process of processing the uplink service data and the downlink service data by the user-side service aggregation module is similar to the processing process of the user-side service aggregation module in the embodiment shown in FIG.
- the processing of business data and downlink business data is as follows:
- the uplink service data For the uplink service data, if the HSI service is to be used, if the PC is connected to port 1 of the ONT1, the uplink service data of the PC will reach the first user-side service aggregation module through the user-side service channel numbered 1, and then through the network-side service channel.
- the network-side service aggregation module of the GEM 101 to the OLT is a first network-side service aggregation module, and then passes through the first service channel to the HSI service processing module in the OLT. If the PC is connected to the port 2 of the ONT1, the uplink service data of the PC is numbered.
- the user-side service channel of the second user-side service aggregation module reaches the same user-side service aggregation module of the same user-side service channel, and then passes through the network-side service channel GEM101 to the same first network-side service aggregation module in the OLT, and then passes through the first service.
- the service is sent to the service processing module of the HSI service in the OLT, and is sent by the service processing module. If the PC is connected to the port 3 of the ONT1, the uplink service data of the PC reaches the same first through the user-side service channel numbered 3.
- the user-side service aggregation module aggregates the same first network-side service through the network-side service channel GEM101 to the OLT.
- the module is then sent to the service processing module of the HSI service in the OLT through the first service channel, and is sent upward by the service processing module.
- the same processing method is also available for IPTV services and VoIP services.
- the network service aggregation module searches for the corresponding network-side service aggregation module, and the network-side service aggregation module searches for the forwarding entry to determine
- the downlink service data is forwarded to the ONT 1 or the ONT2.
- the encapsulated downlink service data is sent to the first user-side service aggregation module of the ONT1 through the network-side service channel GEM101, and the first user-side service aggregation of the ONT1 is performed.
- the module searches for the corresponding user-side service channel (one of the numbers 1, 2, or 3) and forwards it to the corresponding port according to the previously learned forwarding entry. If the forwarding is to be sent to the ONT2, the packet is sent through the network-side service channel GEM 104.
- the encapsulated downlink service data arrives at the first user-side service aggregation module of the ONT2, and the first user-side service aggregation module of the ONT2 searches for the corresponding user-side service channel according to the previously learned forwarding entry (numbered 1, 2, or 3). One) and forwarded to the corresponding port through the determined user-side service channel.
- the processing flow is similar for the IPTV service or the VoIP service.
- a still further aspect of an embodiment of the present invention provides a computer program product, comprising computer program code, when a computer unit executes the computer program code, causing the computer unit to perform a corresponding action in the method embodiment.
- the embodiment of the present invention further provides a user-side device, where the user-side device includes at least two ports and one or more user-side service aggregation modules, where the port is configured to receive uplink service data from the user, according to the uplink.
- the service feature of the service data acquires the service type, and the uplink service data is sent to the corresponding user-side service aggregation module by using the user-side service channel corresponding to the service type, where the user-side service channel is used for the port of the user-side device.
- the service data of a specific service type is transmitted between the user-side service aggregation module and the user-side service aggregation module.
- the user-side service aggregation module is configured to process a service of a specific service type.
- the user-side service aggregation module includes: a first receiving unit 21, a first mapping relationship establishing unit 22, and a first sending unit 23, where the three modules are used to implement processing of uplink service data, and second Receiving unit 24, first query unit 25 and second transmitting unit 26, wherein the first receiving
- the element 21 is configured to receive, by the user-side service channel, the uplink service data from the port connected thereto, where the service type of the uplink service data corresponds to the service type processed by the user-side service aggregation module, where the user-side service is The channel is configured to transmit service data of a specific service type between the port of the user side device and the user side service aggregation module.
- the first mapping relationship establishing unit 22 is configured to acquire the user according to the uplink service data.
- the MAC address of the device, the identifier information of the network, and the identifier information of the service channel on the network side, and the MAC address of the user equipment, the identifier information of the network, and the identifier information of the network side service channel are established.
- the mapping relationship between the identifiers of the channels; the first sending unit 23 is configured to encapsulate the uplink service data, and send the encapsulated uplink service data to the optical line terminal.
- the user-side device may send the encapsulated uplink service data to the OLT through the network-side service channel, where the network-side service channel is used to transmit service data of a specific service type between the user-side service aggregation module and the optical line terminal of the user-side device;
- the second receiving unit 24 is configured to receive downlink service data sent by the optical line terminal.
- the receiving may be received from the network side service channel; the network side service channel is configured to transmit service data of a specific service type between the user side service aggregation module and the optical line terminal of the user side device; the first query unit 25 is configured to The downlink service data is decapsulated, and the MAC address of the user equipment, the identifier information of the network, and the identifier information of the service channel of the network side are obtained according to the downlink service data, and according to the MAC address of the user equipment, the identifier information of the network, and the network.
- the identification information of the side service channel is obtained from the saved mapping relationship, and the user-side service channel is used to transmit the service data of the specific service type between the port of the user-side device and the user-side service aggregation module.
- the second sending unit 26 is configured to send the decapsulated downlink service data to the port connected to the user-side service channel.
- the user-side device includes at least one user-side service aggregation module, where the user-side service aggregation module is configured to process a service of a specific service type, where the first mapping relationship establishing unit can be in the uplink service.
- the mapping relationship between the MAC address of the user equipment, the identifier information of the network, and the identifier information of the network side service channel and the identifier of the service channel of the user side is established in the process of data transmission, and can further be based on the foregoing
- the mapping relationship is performed to transmit the downlink service data, so that the services of the same service type in the user-side device can be aggregated to the corresponding user-side service aggregation module, so that only the number of service types needs to be established between the user-side device and the OLT.
- the network side service channel can be used. In the case of multiple ports, the number of service channels to be configured is reduced, which can reduce the configuration complexity in the service channel configuration and effectively reduce the waste of service resources caused by configuring the service channel.
- the user side device is an optical ONU or an ONT
- the service of the specific service type may include a high speed internet service, an internet television service, or an internet.
- One or several of the networked voice services are possible.
- the first sending unit in the foregoing embodiment is configured to encapsulate the uplink service data, and the first sending unit is configured to perform gigabit passive optical network encapsulation mode or logical link identifier on the uplink service data.
- the encapsulation of the mode may be performed by the first query unit for decapsulating the downlink service data, where the first query unit is configured to perform gigabit passive optical network encapsulation mode or logical link identifier on the downlink service data. Decapsulation of the pattern.
- the embodiment of the present invention further provides a passive optical network system, where the passive optical network system includes an optical line terminal, and at least two user side devices connected to the optical line terminal, where the user side device is provided by using the foregoing embodiment.
- the passive optical network system includes an optical line terminal, and at least two user side devices connected to the optical line terminal, where the user side device is provided by using the foregoing embodiment.
- User side device User side device.
- the optical line terminal may include one or more service processing modules for processing services of a specific service type and a corresponding number of network side service aggregation modules, and usually include services of multiple service types.
- the number of the service processing module and the network side service aggregation module is also multiple.
- the network side service aggregation module includes a third receiving unit 31, a second mapping relationship establishing unit 32, and a third transmitting unit 33, and a fourth receiving unit 34, a second query unit 35, and a fourth sending unit. 36.
- the third receiving unit 31 is configured to receive uplink service data sent by the user side device, where the receiving may be received from a network side service channel, where the network side service channel is used to transmit a specific service between the user side device and the optical line terminal.
- the second mapping relationship establishing unit 32 is configured to decapsulate the uplink service data, obtain the MAC address of the user equipment, the identifier information of the network, and the identifier information of the network side service channel, and establish the user equipment.
- the third sending unit 33 is configured to send the decapsulated uplink service data to the service processing module connected thereto;
- the fourth receiving unit 34 is configured to receive downlink service data sent by the optical line terminal, where the receiving may be from the network side service.
- the network side service channel is configured to transmit service data of a specific service type between the user side service aggregation module and the optical line terminal of the user side device;
- the second query unit 35 is configured to decapsulate the downlink service data.
- the 36 is configured to send the decapsulated downlink service data to the user side device, where the sending may be sent by using the network side service channel.
- the network side service aggregation module is configured in the optical line terminal, and the network side service aggregation module is configured to process a service of a specific service type, and can implement the same service type sent by multiple user side devices.
- the aggregation of the uplink service data, and the corresponding network-side service channel is established between the user-side service aggregation module of the user-side device and the network-side aggregation module of the optical line terminal for each service of the specific service type, so that only the service type needs to be established.
- An equal number of network-side service channels can be used, which reduces the number of service channels to be configured. This reduces the configuration complexity of the service channel configuration and reduces the waste of service resources caused by configuring service channels.
- the data transmission method, the user side device, and the passive optical network system in the PON system can provide a user-side service aggregation module for processing a service of a specific service type in the user-side device.
- the aggregation of the same type of service in the user equipment is performed, and the network-side service aggregation module is further configured in the OLT to implement convergence of the same type of services on multiple user-side devices, so that for each user-side device and
- the service channel of the service channel between the user equipments reduces the waste of service resources.
- the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
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Application Number | Priority Date | Filing Date | Title |
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EP12734330.9A EP2763355B1 (en) | 2012-02-17 | 2012-02-17 | Method for transmitting data in passive optical network, user-side equipment, and system |
CN201280000179.XA CN102714614B (zh) | 2012-02-17 | 2012-02-17 | 无源光网络中数据的传输方法、用户侧设备和系统 |
PCT/CN2012/071254 WO2012095040A2 (zh) | 2012-02-17 | 2012-02-17 | 无源光网络中数据的传输方法、用户侧设备和系统 |
ES12734330.9T ES2605115T3 (es) | 2012-02-17 | 2012-02-17 | Método para transmitir datos en una red óptica pasiva, equipo del lado del usuario y sistema |
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WO2015021595A1 (zh) * | 2013-08-13 | 2015-02-19 | 华为技术有限公司 | 业务通道配置方法和光线路终端以及无源光网络 |
CN104639996B (zh) * | 2013-11-12 | 2018-10-09 | 华为技术有限公司 | 语音业务的实现方法、设备及系统 |
CN103595822B (zh) * | 2013-11-26 | 2019-04-26 | 北京经纬恒润科技有限公司 | 一种数据收发方法、装置及通信设备 |
CN103957142B (zh) * | 2014-04-11 | 2017-04-12 | 烽火通信科技股份有限公司 | 一种实现pon系统三网合一的系统、方法及装置 |
CN106330492B (zh) * | 2015-06-23 | 2019-11-26 | 华为技术有限公司 | 一种配置用户设备转发表的方法、装置及系统 |
CN109286581B (zh) * | 2017-07-21 | 2022-06-21 | 中兴通讯股份有限公司 | 一种通信设备 |
CN108882063B (zh) * | 2018-05-30 | 2021-01-15 | 烽火通信科技股份有限公司 | 一种无源光网络非对称系统业务映射方法 |
CN112217766B (zh) * | 2019-07-10 | 2023-03-17 | 诺基亚通信公司 | 一种转发rtp数据包的方法和装置 |
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CN101459656B (zh) * | 2007-12-13 | 2012-05-23 | 华为技术有限公司 | 一种无源光网络汇聚节点设备、系统及数据传输方法 |
US20100208747A1 (en) * | 2009-02-18 | 2010-08-19 | Telefonaktiebolaget L M Ericsson (Publ) | Output demultiplexing for dynamic bandwidth allocation in passive optical networks |
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CN113727222A (zh) * | 2021-08-16 | 2021-11-30 | 烽火通信科技股份有限公司 | 一种pon系统中mac地址漂移的检测方法及装置 |
CN113727222B (zh) * | 2021-08-16 | 2023-11-03 | 烽火通信科技股份有限公司 | 一种pon系统中mac地址漂移的检测方法及装置 |
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EP2763355A4 (en) | 2014-12-17 |
CN102714614B (zh) | 2015-04-08 |
WO2012095040A3 (zh) | 2013-01-24 |
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