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 PDF

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Publication number
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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WIPO (PCT)
Prior art keywords
service
user
network
aggregation module
channel
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PCT/CN2012/071254
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English (en)
French (fr)
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WO2012095040A3 (zh
Inventor
柯波
孟万红
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/071254 priority Critical patent/WO2012095040A2/zh
Priority to CN201280000179.XA priority patent/CN102714614B/zh
Priority to ES12734330.9T priority patent/ES2605115T3/es
Priority to EP12734330.9A priority patent/EP2763355B1/en
Publication of WO2012095040A2 publication Critical patent/WO2012095040A2/zh
Publication of WO2012095040A3 publication Critical patent/WO2012095040A3/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q11/0067Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00Encapsulation of packets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q11/0071Provisions 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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Description

无源光网络中数据的传输方法、 用户侧设备和系统
技术领域 本发明涉及通信技术, 尤其涉及一种无源光网络中数据的传输方法、 用户侧设备和无源光网络系统。
背景技术
无源光网络( Passive Optical Network, 以下简称: PON )是一种采用 点到多点 ( Point 2 Multiple Point, 以下简称: P2MP )模式的网路架构 , PON由三部分组成,分别为光线路终端( Optical Line Terminal, 以下简称: OLT ) , 光配线网络( Optical Distribution Network, 以下简称: ODN )和 光网络单元 ( Optical Network Unit , 以下简称: ONU ) 。
其中, OLT是设置在局端的用于终结 PON协议的汇聚设备; ONU是 位于用户侧, 并为用户设备提供各种接口的用户侧设备, 该 ONU也可以 看作是光网络终端 ( Optical Network Terminal, 以下简称: ONT ) , ONU 和 ONT可以统称为用户侧设备, 在上述的用户侧设备上通过设置多个端 口为用户设备提供网络连接; ODN用于提供 OLT和 ONU之间进行通信 的物理通道。 以太网无源光网络( Ethernet Passive Optical Network , 以下 简称: ΕΡΟΝ )和吉比特无源光网络( Gigabit Passive Optical Network, 以 下简称: GPON )是两种主流的 PON技术。
上述的无源光网络可以实现对多种类型业务的支持,例如对高速互联 网 ( Height Speed Internet, 以下简称: HSI ) 业务、 互联网电视( Internet Protocol Television, 以下简称: IPTV ) 业务和互联网语音 ( Voice over Internet Protocol , 以下简称: VoIP ) 业务的支持, 如图 1和图 2所示, 在 PON的用户侧设备上设置有多个用于与用户设备连接的端口,每个端口上 为每一种类型的业务配置了一条业务通道, 该业务通道连接至 OLT, 用于 承载对应类型的业务在用户侧设备和 OLT之间传输, 每条业务通道都需 要配置对应的业务资源。 例如图 1所示, 每个端口可以支持三种类型的业 务, 共建立了 9条业务通道, 其中编号为 1 ~ 3的业务通道是端口 1 ~端 口 3上的 HSI业务的业务通道,编号为 4 ~ 6的业务通道是端口 1〜端口 3 上的 IPTV的业务通道, 编号为 7 ~ 9的业务通道是端口 1 ~ 3上 VoIP业 务的业务通道。 而如图 2所示, 在系统中包括有两个用户侧设备时, 需要 建立的 18条业务通道, 分别用编号 1〜18表示。
然而在实际的应用中, 通常对于用户侧设备上的端口,其在某一时间 段内只接入一种类型的业务,此时为其他类型的业务配置的业务通道会处 于空闲状态, 这样会造成空闲状态的业务通道对应的业务资源的浪费。 因 此, 现有的 PON技术中在用户侧设备到 OLT之间存在业务资源浪费的情 况。
发明内容
本发明实施例提供一种无源光网络中数据的传输方法、用户侧设备和 无源光网络系统, 以及一种计算机程序产品, 用于避免 PON技术中用户 侧设备和 OLT之间的业务资源浪费。
本发明实施例的一个方面提供了一种无源光网络中数据的传输方法, 在用户侧设备中设置有一个或多个用户侧业务汇聚模块, 所述用户侧业务 汇聚模块用于处理一种特定业务类型的业务, 所述方法包括:
所述用户侧业务汇聚模块接收来自所述用户侧设备的端口的上行业 务数据, 所述上行业务数据为业务类型与所述用户侧业务汇聚模块处理的 业务类型相对应的上行业务数据;
所述用户侧业务汇聚模块根据接收到的所述上行业务数据获取用户 设备的 MAC地址、 网络的标识信息和网络侧业务通道的标识信息, 并建 立所述用户设备的 MAC地址、 所述网络的标识信息和所述网络侧业务通 道的标识信息三者与用户侧业务通道的标识之间的映射关系;
所述用户侧业务汇聚模块对所述上行业务数据进行封装,并通过所述 述网络侧业务通道为在所述用户侧设备的用户侧业务汇聚模块和与之相 连的光线路终端间传输特定业务类型的业务数据的通道。
本发明实施例的一个方面还提供了另一种无源光网络中数据的传输 方法, 在用户侧设备中设置有一个或多个用户侧业务汇聚模块, 所述用户 侧业务汇聚模块用于处理一种特定业务类型的业务, 所述方法包括: 所述用户侧业务汇聚模块从网络侧业务通道接收由光线路终端发送 的下行业务数据, 所述网络侧业务通道用于在用户侧设备的用户侧业务汇 聚模块和光线路终端间传输特定业务类型的业务数据;
所述用户侧业务汇聚模块对所述下行业务数据进行解封装, 根据所述 下行业务数据获取用户设备的 MAC地址、 网络的标识信息和网络侧业务 通道的标识信息, 并根据所述用户设备的 MAC地址、 所述网络的标识信 息和网络侧业务通道的标识信息从保存的映射关系中获取对应的用户侧 业务通道的标识, 所述用户侧业务通道为在用户侧设备的端口和所述用户 侧业务汇聚模块间传输特定业务类型的业务数据的通道;
所述用户侧业务汇聚模块通过所述用户侧业务通道向用户侧设备的 端口发送解封装后的下行业务数据。
本发明实施例的另一个方面提供了一种用户侧设备, 包括至少两个端 口和一个或多个用户侧业务汇聚模块, 所述端口用于接收来自用户的上行 业务数据, 根据所述上行业务数据的业务特征获取业务类型, 通过与所述 业务类型对应的用户侧业务通道向对应的用户侧业务汇聚模块发送所述 上行业务数据; 所述用户侧业务汇聚模块用于处理一种特定业务类型的业 务, 包括:
第一接收单元, 用于从所述用户侧业务通道接收来自与之相连端口的 所述上行业务数据, 所述上行业务数据的业务类型与所述用户侧业务汇聚 模块处理的业务类型相对应, 所述用户侧业务通道用于在用户侧设备的端 口和用户侧业务汇聚模块间传输特定业务类型的业务数据;
第一映射关系建立单元, 用于根据所述上行业务数据获取用户设备的 MAC地址、 网络的标识信息和网络侧业务通道的标识信息, 并建立所述 用户设备的 MAC地址、 所述网络的标识信息和所述网络侧业务通道的标 识信息三者与用户侧业务通道的标识之间的映射关系;
第一发送单元, 用于对所述上行业务数据进行封装, 并通过所述网络 侧业务通道发送封装后的上行业务数据, 所述网络侧业务通道用于在用户 侧设备的用户侧业务汇聚模块和光线路终端间传输特定业务类型的业务 数据; 第二接收单元, 用于从所述网络侧业务通道接收由光线路终端发送的 下行业务数据;
第一查询单元, 用于对所述下行业务数据进行解封装, 根据所述下行 业务数据获取用户设备的 MAC地址、 网络的标识信息和所述网络侧业务 通道的标识信息, 并根据所述用户设备的 MAC地址、 所述网络的标识信 息和网络侧业务通道的标识信息从保存的映射关系中获取用户侧业务通 道的标识;
第二发送单元, 用于通过所述用户侧业务通道向与之相连的端口发送 解封装后的下行业务数据。
本发明实施例的再一个方面提供了一种无源光网络系统, 包括光线路 终端, 以及与所述光线路终端连接的两个以上的用户侧设备, 所述用户侧 设备采用上述的用户侧设备。
本发明实施例的还一个方面提供了计算机程序产品, 包括计算机程序 代码, 当一个计算机单元执行所述计算机程序代码时, 使得计算机单元执 行上述方法 3†应的动作。
本发明提供的技术方案, 在 PON的用户侧设备中设置有两个以上的 用户侧业务汇聚模块, 该用户侧业务汇聚模块用于处理特定业务类型的业 务, 使得在进行上行业务数据传输时, 其首先通过用户侧业务通道从端口 接收上行业务数据, 从而使得各个端口的同一业务类型的上行业务数据都 能够汇聚到用户侧业务汇聚模块上, 并且进一步的, 由业务汇聚模块通过 网络侧业务通道向 OLT发送, 使得在用户侧设备和 OLT之间只需要为同 一业务类型建立一条业务通道即可, 另外, 还可以使网络侧业务汇聚模块 通过专用的网络侧业务通道接收各种业务类型, 且其中位于用户侧设备上 的用户侧业务汇聚模块对同一业务类型的业务进行了汇聚, 从而能够有效 的减少对用户侧设备和 OLT之间的业务资源的浪费。 附图说明
实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见 地, 下面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的 附图。
图 1为现有技术中无源光网络的结构示意图一;
图 2为现有技术中无源光网络的结构示意图二;
图 3为本发明实施例中一种无源光网络中数据的传输方法的流程示意 图;
图 4为本发明实施例中另一种无源光网络中数据的传输方法的流程示 意图;
图 5为本发明一个具体实施例中无源光网络系统的装置示意图; 图 6为本发明实施例中光线路终端执行的一种数据的传输方法的流程 示意图;
图 7为本发明实施例中光线路终端执行的另一种数据的传输方法的流 程示意图;
图 8为本发明另一个具体实施例中无源光网络系统的装置示意图; 图 9为本发明实施例中用户侧业务汇聚模块的结构示意图;
图 10为本发明实施例中网络侧业务汇聚模块的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
针对现有技术中在 PON技术用户侧设备和 OLT之间存在业务资源浪 费的情况, 本发明实施例提供了一种技术方案, 图 3为本发明实施例中一 种无源光网络中数据传输方法实施例的流程示意图, 该实施例中在用户侧 设备中设置有一个或多个用户侧业务汇聚模块, 上述的每个用户侧业务汇 聚模块用于处理一种特定业务类型的业务, 如图 3所示, 该方法包括如下 步骤: 步骤 101、用户侧业务汇聚模块从用户侧业务通道接收上行业务数据, 所述上行业务数据的业务类型与所述用户侧业务汇聚模块处理的业务类 型相对应, 所述用户侧业务通道用于在用户侧设备的端口和用户侧业务汇 聚模块间传输特定业务类型的业务数据;
步骤 102、 用户侧业务汇聚模块根据所述上行业务数据获取用户设备 的 MAC地址、 网络的标识信息和网络侧业务通道的标识信息, 并建立所 述用户设备的 MAC地址、 所述网络的标识信息和所述网络侧业务通道的 标识信息三者与用户侧业务通道的标识之间的映射关系;
步骤 103、 用户侧业务汇聚模块对上述上行业务数据进行封装, 并通 过网络侧业务通道发送封装后的上行业务数据, 所述网络侧业务通道用于 在用户侧设备的用户侧业务汇聚模块和光线路终端间传输特定业务类型 的业务数据。
本发明上述实施例中, 在 PON的用户侧设备中设置有一个或多个的 用户侧业务汇聚模块, 每个用户侧业务汇聚模块用于处理一种特定业务类 型的业务, 使得在进行上行业务数据传输时, 其首先通过用户侧业务通道 从端口接收上行业务数据, 从而使得各个端口的同一业务类型的上行业务 数据都能够汇聚到对应的处理该业务类型的用户侧业务汇聚模块上, 并且 进一步的, 由用户侧业务汇聚模块通过网络侧业务通道向 OLT发送, 使 得在用户侧设备和 OLT之间只需要为同一业务类型建立一条业务通道即 可, 从而能够有效的减少对用户侧设备和 OLT之间的业务资源的浪费。
本发明上述实施例中, 其中的每个用户侧业务汇聚模块接收到的是特 定业务类型的上行业务数据,即与其处理能力对应的上行业务数据, 具体 的, 对于上行业务数据的业务类型可以由端口获取, 该上述的步骤 101 之前还可以进一步包括:
用户侧设备的端口根据所述上行业务数据的业务特征获取业务类型; 用户侧设备的端口通过与所述业务类型对应的用户侧业务通道向对 应的用户侧业务汇聚模块发送所述上行业务数据。
本发明上述实施例中, 其中的特定业务类型可以为 HSI业务、 IPTV 业务或 VoIP业务中的一种, 即可以在用户侧设备中同时包括三个用户侧 业务汇聚模块, 分别处理上述的三种业务, 例如第一用户侧业务汇聚模块 处理 HIS业务,第二用户侧业务汇聚模块处理 IPTV业务, 第三用户侧业务 汇聚模块处理 VoIP业务。 另外, 针对其他的新业务类型, 也可以增加相 应的用户侧业务汇聚模块。 在具体的实施过程中, 对于不同的用户侧业务 汇聚模块, 可以分别由不同的硬件实体实现, 也可以由同一个硬件实体中 的不同功能实例实现。
本发明实施例中, 用户侧设备包括两个以上的端口, 其中每个端口都 支持各种业务类型, 本实施例中为每个业务类型都建立了端口到相应用户 侧业务汇聚模块之间的用户侧业务通道, 使得端口在辨别出业务类型后都 能够将上行业务数据发送给相应的用户侧业务汇聚模块。 对于不同类型业 务的上行业务数据, 由于不同类型业务数据其报文中的业务特征不同, 例 如以太网封装或 IP封装的业务域标识不同,对于 HSI业务,其中的 VLAN 值可以设为 11 , 对于 IPTV业务, 其中的 VLAN值可以设置为 12, 对于 VoIP业务, 其中的 VLAN的值可以设为 13 , 因此使得端口容易根据业务 特征辨别出业务类型。
本发明上述实施中, 用户侧业务汇聚模块在进行上行业务数据转发的 过程中学习转发表项, 即获取用户设备的 MAC地址、 网络的标识信息和 网络侧业务通道的标识信息, 上述的网络标识可以用 VLAN表示, 而网络 侧业务通道的标识信息可以用 GEM id或者是LLID表示, 进一步建立所 述用户设备的 MAC地址、 网络的标识信息和网络侧业务通道的标识信息 三者与用户侧业务通道的标识之间的映射关系, 以在进行下行业务数据传 输时查表使用实现正确的转发, 其中上述的用户设备的 MAC地址可以看 作是上行业务数据的源地址, 而其中网络的标识信息是上行业务数据传送 的目标网络的标识, 其与业务类型相关, 而当处理下行业务数据时, 上述 的用户设备的 MAC地址可以看作是下行业务数据的目的地址。对于 IPTV 业务, 其中用户设备的 MAC地址可以是机顶盒的 MAC地址。
本发明上述实施例的步骤 103中对上行业务数据进行封装, 针对 GPON技术或 EPON技术, 该步骤可以具体为用户侧业务汇聚模块对所述 上行业务数据进行吉比特无源光网络封装模式 ( GPON encapsulation mode, 以下简称: GEM ) 的封装; 或
用户侧业务汇聚模块对所述上行业务数据进行逻辑链路标识( Logical Link Identifier, 以下简称: LLID )模式的封装。
本发明上述实施例中, 其中在步骤 103中对上行业务数据进行封装处 理前, 还可以进一步的对上行业务数据的业务特征进行处理, 使其能够区 分是由不同的用户设备发送来的, 其中可以对用户设备的业务优先级进行 改写, 以区分不同的用户设备, 或者是对其中的业务特征进行改写, 例如 对业务域标识进行改写, 对于 A设备, 将它的 HSI业务对应的 VLAN值 修改为 111 , IPTV业务对应的 VLAN值修改为 112, VoIP业务对应的 VLAN 值修改为 113 , 而对于用户设备 B, 将其 HSI业务对应的 VLAN值修改为 211 , IPTV业务对应的 VLAN值修改为 212, VoIP业务对应的 VLAN值 修改为 213 , 使得上述业务特征不仅能够代表其业务类型, 还能够代表不 同的用户设备。
与图 3对应的, 本发明实施例还提供了对应的下行业务数据的传输方 法, 具体的, 图 4为本发明实施例中另一种无源光网络的数据传输方法的 流程示意图, 该实施例中在用户侧设备中设置有一个或多个用户侧业务汇 聚模块, 其每个用户侧业务汇聚模块用于处理一种特定业务类型的业务, 如图 4所示, 该方法包括如下步骤:
步骤 201、 用户侧业务汇聚模块从网络侧业务通道接收由光线路终端 发送的下行业务数据, 所述网络侧业务通道用于在用户侧设备的用户侧业 务汇聚模块和光线路终端间传输特定业务类型的业务数据;
步骤 202、 用户侧业务汇聚模块对所述下行业务数据进行解封装, 获 取用户设备的 MAC地址、网络的标识信息和网络侧业务通道的标识信息, 并根据所述用户设备的 MAC地址、 所述网络的标识信息和网络侧业务通 道的标识信息从映射关系中获取用户侧业务通道的标识, 所述用户侧业务 通道用于在用户侧设备的端口和用户侧业务汇聚模块间传输特定业务类 型的业务数据;
步骤 203、 用户侧业务汇聚模块通过所述用户侧业务通道向端口发送 解封装后的下行业务数据。
本发明实施例中, 其中在用户侧设备中设置了用于处理特定业务类型 的业务的用户侧业务汇聚模块, 同时在其与光线路终端间设置有传输特定 业务类型的业务数据的网络侧业务通道, 使得对于需传送到任何端口的下 行业务数据, 可以按照业务类型而从不同的网络侧业务通道传给用户侧业 务汇聚模块, 在用户侧设备和光线路终端间也只需要设置与业务类型数量 相等的网络侧业务通道即可, 能够有效减少用户侧设备和光线路终端间的 业务通道数量, 降低二者之间的业务资源浪费。
本发明上述实施例中, 其中的特定业务类型也可以为 HSI业务、 IPTV 业务或 VoIP业务中的一种, 同时可以在用户侧设备中分别针对上述的三 种业务设置三个用户侧业务汇聚模块, 并建立三条对应的网络侧业务通 道。
另外, 该步骤 202中, 在无法从预存的映射关系中查找到对应的用户 侧业务通道的标识时, 可以通过广播的方式向与该用户侧业务汇聚模块相 连的所有端口发送解封装后的下行业务数据。
即是根据上行数据处理过程中学习到的转发表项进行下行业务数据 转发, 另外, 如果用户侧业务汇聚模块没有在映射关系中查找到对应的第 一业务隧道的标识, 则会按照广播的方式向所有的端口发送上述的下行业 务数据。
针对 GPON和 EPON这两种主流的 PON技术 ,上述实施例的步骤 202 中对下行业务数据进行解封装可以具体为用户侧业务汇聚模块对所述下 行业务数据进行 GEM模式的解封装; 或
所述用户侧业务汇聚模块对所述下行业务数据进行 LLID模式的解封 装。
本发明上述实施例中, 其中在步骤 203中向端口发送解封装后的下行 业务数据之前, 还可以进一步的包括对下行业务数据中的业务特征的处 理, 该处理过程与对上行业务数据中的业务特征处理对应, 即在进行上行 业务数据传输时, 若对业务优先级和 VLAN值进行了改写, 则该步骤中会 将其改写回原来的值。
图 5为本发明一个具体实施例中无源光网络系统的装置示意图, 本实 施例中的用户侧设备是 ONT, 当然还可以是 ONU或其他类似设备, 如图 5所示,在每个 ONT上设置有三个端口和三个用户侧业务汇聚模块,对于 OTN上设置四个或者更多端口的情况, 本发明的技术方案也同样适用,通 常用户侧业务汇聚模块的个数与该 ONT支持的业务类型的个数相对应。 具体的,以图中 ONT1为例进行说明,上述的三个端口可以提供 HSI业务、 IPTV业务或 VoIP业务中的一种或多种, 三个用户侧业务汇聚模块分别用 于对其中一种业务类型的业务进行处理, 在每个端口与各个用户侧业务汇 聚模块间都设置有用户侧业务通道, 以进行与该用户侧业务汇聚模块相对 应的业务类型的业务数据的传输, 三个端口可以用端口 1、 端口 2和端口 3表示, 用户侧业务通道分别可以用标号 1〜9表示。 另外, 对于各个用户 侧业务汇聚模块都设置有对应的一个网络侧业务通道与 OLT连接, 三条 网络侧业务通道分别用 GEM101、 GEM102和 GEM103表示, 其具体的是 与 OLT中相对应业务的处理模块连接, 可以用局域网的标识信息表征, 例如 VLAN1表示 HSI业务, VLAN2表示 IPTV业务, VLAN3表示 VoIP 业务。 除用 VLAN表示外, 还可以用边缘到边缘的伪线仿真(Pseudo Wire Emulation Edge-to-Edge, 以下简称: PWE3 ) , 或者是虚拟专用局域网 (Virtual Private Lan Service , 以下简称: VPLS)表示。
在具体的应用过程中, 如果是上行业务数据传输, 例如是 HSI业务, 假设 PC接 ΟΝΤ的端口 1 , 则 PC的数据会通过标号为 1的用户侧业务通 道到达第一用户侧业务汇聚模块,再通过网络侧业务通道 GEM101发送到 OLT中对应的业务处理模块 VLAN1 , 即 HSI业务模块; 假设 PC接 ONT 的端口 2, 则 PC的数据会通过标号为 2的用户侧业务通道到达同一个用 户侧业务汇聚模块一第一用户侧业务汇聚模块, 再通过网络侧业务通道 GEM 101到 OLT中对应的业务处理模块 VLAN 1 , 即 HSI业务模块; 假设 PC接 ONT的端口 3 , 则 PC的数据会通过标号为 3的用户侧业务通道到 达同一个用户侧业务汇聚模块, 再通过网络侧业务通道 GEM101到 OLT 中对应的 HSI业务模块。
另外, 如果要使用 IPTV业务,假设机顶盒接 ONT的端口 1 , 则 IPTV 的上行业务数据会通过编号为 4的用户侧业务通道到达第二用户侧汇聚模 块, 再通过网络侧业务通道 GEM102到 OLT中对应的业务处理模块, 即 VLAN2表示的 IPTV业务模块; 假设机顶盒接 ONT的端口 2, 则 IPTV的 上行业务数据会通过编号为 5的用户侧业务通道到达同一个用户侧汇聚模 块, 再通过网络侧业务通道 GEM102到 OLT中对应的业务处理模块, 即 VLAN2表示的 IPTV业务模块; 假设机顶盒接 ONT的端口 3则 IPTV的 上行业务数据会通过编号为 6的用户侧业务通道到达同一个用户侧汇聚模 块, 再通过网络侧业务通道 GEM102到 OLT中对应的业务处理模块, 即 VLAN2表示的 IPTV业务模块。
如果要使用 VoIP业务,假设 VoIP业务终端-综合接入设备( Integrated Access Device, 以下简称: IAD )接 ONT的端口 1 , 则 VoIP的上行业务 数据会通过编号为 7的用户侧业务通道到达第三用户侧业务汇聚模块, 再 通过网络侧业务通道 GEM103到 OLT中对应的业务处理模块, 即 VLAN3 表示的 VoIP业务模块; 假设 IAD接 ONT的端口 2, 则 VoIP的上行业务 数据会通过编号为 8的用户侧业务通道到达同一个用户侧业务汇聚模块, 再通过网络侧业务通道 GEM103到 OLT中对应的业务处理模块, 即
VLAN3表示的 VoIP业务模块; 假设 IAD接 ONT的端口 3 , 则 VoIP的上 行业务数据会通过编号为 9的用户侧业务通道到达同一个用户侧业务汇聚 模块, 再通过网络侧业务通道 GEM103到 OLT中对应的业务处理模块, 即 VLAN3表示的 VoIP业务模块。
另外, 对于下行业务数据, 其中对于 HSI业务的下行业务数据会通过 网络侧业务通道 GEM101到达 ONT中相应的第一用户侧业务汇聚模块, 该第一用户侧业务汇聚模块会通过编号为 1、 2或 3的用户侧业务通道将 其发送给连接到端口上的 PC, 具体的第一用户侧业务汇聚模块可以通过 查找转发表项, 确定发给哪个用户侧业务通道, 而在无法通过转发表项查 询到用户侧业务通道信息时, 可以通过广播的方式下发上述的下行业务数 据到所有与该用户侧业务汇聚模块相连的用户侧业务通道; 而对于 IPTV 业务的下行业务数据会通过网络侧业务通道 GEM102到达 ONT中相应的 第二用户侧业务汇聚模块, 该第二用户侧业务汇聚模块会通过编号为 4、 5 或 6的用户侧业务通道将其发送给连接到端口上的机顶盒; 而对于 VoIP 业务的下行业务数据会通过网络侧业务通道 GEM 103到达 ONT中相应的 第三用户侧业务汇聚模块, 该第三用户侧业务汇聚模块会通过编号为 7、 8 或 9的用户侧业务通道将其发送给连接到端口上的 IAD。
上述各个实施例是在用户侧设备上设置了用户侧业务汇聚模块, 还可 以进一步的在光线路终端上设置网络侧业务汇聚模块。 图 6为本发明实施 例中光线路终端执行的一种数据的传输方法的流程示意图, 该实施例中在 光线路终端中设置有一个或多个网络侧业务汇聚模块, 每个网络侧业务汇 聚模块用于处理一种特定业务类型的业务, 与光线路终端中相对应的业务 处理模块相连, 在执行图 3所示步骤的基础上, 该方法进一步包括如下的 步骤:
步骤 301、 网络侧业务汇聚模块从网络侧业务通道接收由用户侧设备 发送的上行业务数据, 所述网络侧业务通道用于在用户侧设备和光线路终 端间传输特定业务类型的业务数据;
步骤 302、 网络侧业务汇聚模块对所述上行业务数据进行解封装, 并 获取用户设备的 MAC地址、 网络的标识信息和网络侧业务通道的标识信 息, 建立所述用户设备的 MAC地址、 网络的标识信息二者与网络侧业务 通道的标识信息之间的映射关系;
步骤 303、 网络侧业务汇聚模块将所述解封装后的上行业务数据发送 给与之相连业务处理模块。
本实施例中的网络侧业务汇聚模块通过专用的网络侧业务通道接收 与其处理业务类型相对应的业务类型的业务数据。 位于用户侧设备上的用 户侧业务汇聚模块对同一业务类型的业务进行了汇聚, 在 OLT上, 其中 的网络侧业务汇聚模块也可以对多个用户侧设备上发送来的同一业务类 型的上行业务数据进行汇聚, 对于任一业务类型的业务, 只需要 OLT中 相应的网络侧业务汇聚模块和用户侧设备中的用户侧业务汇聚模块之间 建立一条业务通道, 本实施例的技术方案能够减少 OLT和 ONT/ONU间 需要配置的业务通道的数量, 降低业务通道配置的复杂度, 提高通道配置 时业务通道的配置效率, 通过与用户侧设备上的用户侧业务汇聚模块配合 使用, 有效减少对业务资源的浪费。
本发明上述实施例中的特定业务类型, 其同样可以例如为 HSI业务、 IPTV业务或 VoIP业务中的一种或几种。
在本发明上述的步骤 302中, 网络侧业务汇聚模块也可以从上行业务 数据中获取用户设备的 MAC地址、 网络的标识信息和网络侧业务通道的 标识信息, 并建立所述用户设备的 MAC地址、 网络的标识信息二者与网 络侧业务通道的标识信息之间的映射关系, 即学习转发表项, 以使得在进 行下行业务数据传输时使用。 另外 , 针对 GPON和 EPON两种主流的 PON技术 , 本发明上述实施 例步骤 302中的网络侧业务汇聚模块对所述上行业务数据进行解封装可以 包括如下两种情况:
网络侧业务汇聚模块对所述上行业务数据进行 GEM解封装, 或网络 侧业务汇聚模块对所述上行业务数据进行 LLID模式的解封装。
另外, 本发明上述实施例中, 其中对于解封装后的上行业务数据, 还 可以进一步的对上行业务数据的业务特征进行处理, 使其能够区分是由不 同的用户设备发送来的, 其中可以对用户设备的业务优先级进行改写, 以 区分不同的用户设备, 或者是其中的业务特征进行改写, 例如对业务域标 识进行改写, 对于 A设备, 将它的 HSI业务对应的 VLAN值修改为 111 , IPTV业务对应的 VLAN值修改为 112, VoIP业务对应的 VLAN值修改为 113 ,而对于用户设备 B,将其 HSI业务对应的 VLAN值修改为 211 , IPTV 业务对应的 VLAN值修改为 212, VoIP业务对应的 VLAN值修改为 213 , 使得上述业务特征不仅能够代表其业务类型, 还能够代表不同的用户设 备。
图 7为本发明实施例中光线路终端执行的另一种数据的传输方法的流 程示意图, 该实施例中, 在光线路终端中设置有一个或多个网络侧业务汇 聚模块, 每个网络侧业务汇聚模块用于处理一种特定业务类型的业务, 并 与对应业务类型的业务处理模块相连, 该方法是与上一个实施例对应的下 行处理过程, 包括如下的步骤:
步骤 401、 网络侧业务汇聚模块接收业务处理模块发送的下行业务数 据;
步骤 402、 网络侧业务汇聚模块从所述下行业务数据中获取用户设备 的 MAC地址和网络的标识信息, 并根据所述用户设备的 MAC地址和网 络的标识信息二者从保存的映射关系中获取对应的网络侧业务通道的标 识信息;
步骤 403、 网络侧业务汇聚模块对所述下行业务数据进行封装后, 通 过网络侧业务通道向用户侧设备的用户侧业务汇聚模块发送封装后的下 行业务数据, 所述网络侧业务通道用于在用户侧设备的用户侧业务汇聚模 块和光线路终端的网络侧业务汇聚模块间传输特定业务类型的业务数据。 本实施例中在 OLT上设置网络侧业务汇聚模块, 其可以接收由光线 路终端的特定业务处理模块通过第一业务通道发送的下行业务数据, 并通 过网络侧业务通道向用户侧设备的用户侧业务汇聚模块发送, 该网络侧业 务通道用于在用户侧设备的用户侧业务汇聚模块和光线路终端的网络侧 汇聚设备间传输特定业务类型的业务数据, 使得在 OLT和用户侧设备间 针对每种业务类型的业务仅建立一条业务通道即可, 上述通过在 OLT和 用户侧设备上进行业务汇聚的技术方案, 能够提高通道配置时业务通道的 配置效率, 降低对业务资源的浪费。
本发明上述实施例中的特定业务类型可以为例如 HSI业务、 IPTV业 务或 VoIP中的一种或几种。
另外, 该步骤 403中, 在无法从预存的映射关系中查找到对应的网络 侧业务通道的标识时, 可以以广播的方式向所有与之相连的用户侧业务汇 聚模块发送封装后的下行业务数据。
另外 , 针对 GPON和 EPON两种主流的 PON技术 , 本发明上述实施 例步骤 403中的网络侧业务汇聚模块对所述下行业务数据进行封装包括: 网络侧业务汇聚模块对下行业务数据进 GEM封装; 或
网络侧业务汇聚模块对下行业务数据进行 LLID模式的封装。
本发明上述实施例中, 对于封装前的下行业务数据, 还可以进一步的 包括对下行业务数据中的业务特征的切换, 根据业务需要对业务特征进行 处理, 该处理过程是与对上行业务数据中的业务特征处理对应的, 即在进 行上行业务数据传输时, 若对业务优先级和 VLAN值进行了改写, 则该步 骤中会将其改写回原来的值。
图 8为本发明另一个具体实施例中无源光网络系统的装置示意图, 如 图 8所示,该网络包括至少两个用户侧设备,如图示分别是 ONT1和 ONT2, 其中, 在 ONT1上设置有至少两个端口,如图示为三个端口, 这三个端口可 以提供例如 HSI业务、 IPTV业务或 VoIP业务中的一种或多种, ONT1上 设置有三个用户侧业务汇聚模块以对应该 ONT支持的这三种业务 ,在 OLT 上也设置有三个对应的网络侧业务汇聚模块以对应与该 OLT相连的 ONTs 所支持的所有业务, 具体的, 三个用户侧业务汇聚模块分别用于对一种业 务类型的业务进行处理, 在每个端口与各个用户侧业务汇聚模块间都设置 有用户侧业务通道, 以进行与该用户侧业务汇聚模块相对应的业务类型的 业务数据的传输, 三个端口可以用端口 1、 端口 2和端口 3表示, 用户侧 业务通道分别可以用标号 1〜9表示。 另外, 对于各个用户侧业务汇聚模块 都设置有对应的一条网络侧业务通道与 OLT中对应的网络侧业务汇聚模 块连接,三条网络侧业务通道分别用 GEM101、 GEM 102和 GEM103表示, 另夕卜, 对于 ONT2的设置与 ONT1相同, 区别在于其中用户侧汇聚模块和 网络侧业务汇聚模块之间针对不同业务类型的网络侧业务通道分别用 GEM 104, GEM105和 GEM106表示, 以与 GEM101-103区别。 另外, 在 OLT中,各个网络侧业务汇聚模块和对应的业务处理模块间设置有第一业 务通道, 本实施例中对于 OLT中的业务处理模块, 可以用局域网的标识 信息表征, 例如 VLAN1表示 HSI业务, VLAN2表示 IPTV业务, VLAN3 表示 VoIP业务。
本发明具体实施例的应用过程中, 其中用户侧业务汇聚模块对于上行 业务数据和下行业务数据的处理过程与图 5所示实施例中的用户侧业务汇 聚模块的处理过程类似, 具体的对于上行业务数据和下行业务数据的处理 过程如下:
对于上行业务数据, 如果要使用 HSI业务, 假设 PC接 ONT1的端口 1 ,则 PC的上行业务数据会通过编号为 1的用户侧业务通道到达第一用户 侧业务汇聚模块, 再通过网络侧业务通道 GEM101到 OLT的网络侧业务 汇聚模块一第一网络侧业务汇聚模块,然后经过第一业务通道到达 OLT中 的 HSI业务处理模块;假设 PC接 ONT1的端口 2, 则 PC的上行业务数据 会通过编号为 2的用户侧业务通道到达同一个用户侧业务汇聚模块一第一 用户侧业务汇聚模块, 再通过网络侧业务通道 GEM101到 OLT中的同一 个第一网络侧业务汇聚模块,然后经过第一业务通道发送给 OLT中 HSI业 务的业务处理模块, 并由该业务处理模块向上发送; 假设 PC接 ONT1的 端口 3 , 则 PC的上行业务数据会通过编号为 3的用户侧业务通道到达同 一个第一用户侧业务汇聚模块, 再通过网络侧业务通道 GEM101到 OLT 中的同一个第一网络侧业务汇聚模块,然后经过第一业务通道发送给 OLT 中 HSI业务的业务处理模块, 并由该业务处理模块向上发送。 对于 IPTV 业务和 VoIP业务, 也有相同的处理方法。 对于下行业务数据, 如果是 HSI业务, 在 OLT上对应的业务处理模 块接收到后, 经过相应的第一业务通道到达对应的网络侧业务汇聚模块, 该网络侧业务汇聚模块查找转发表项来决定下行业务数据是转发给 ONT 1 还是 ONT2, 如果是给 ONT1 , 则通过网络侧业务通道 GEM101发送封装 后的下行业务数据到达 ONT1的第一用户侧业务汇聚模块, 该 ONT1的第 一用户侧业务汇聚模块根据之前学习的转发表项查找对应的用户侧业务 通道 (编号为 1、2或 3中的一条)并转发给相应端口;如果转是要发给 ONT2, 则通过网络侧业务通道 GEM 104发送封装后的下行业务数据到达 ONT2 的第一用户侧业务汇聚模块, 该 ONT2的第一用户侧业务汇聚模块根据之 前学习的转发表项查找对应的用户侧业务通道 (编号为 1、 2或 3中的一条) 并通过该确定的用户侧业务通道转发给相应端口。 另外, 对于 IPTV业务 或 VoIP业务, 处理流程类似。
本发明实施例的还一个方面提供了计算机程序产品, 包括计算机程序 代码, 当一个计算机单元执行所述计算机程序代码时, 使得计算机单元执 行上述方法实施例中对应的动作。
本发明实施例中还提供了一种用户侧设备, 该用户侧设备包括至少两 个端口和一个或多个用户侧业务汇聚模块, 上述端口用于接收来自用户的 上行业务数据, 根据所述上行业务数据的业务特征获取业务类型, 通过与 所述业务类型对应的用户侧业务通道向对应的用户侧业务汇聚模块发送 所述上行业务数据, 所述用户侧业务通道用于在用户侧设备的端口和用户 侧业务汇聚模块间传输特定业务类型的业务数据, 上述用户侧业务汇聚模 块用于处理一种特定业务类型的业务, 图 9为本发明实施例中用户侧业务 汇聚模块的结构示意图, 如图 9所示, 该用户侧业务汇聚模块包括: 第一 接收单元 21、 第一映射关系建立单元 22和第一发送单元 23 , 上述三个模 块用于实现对上行业务数据的处理, 以及第二接收单元 24、 第一查询单元 25和第二发送单元 26, 其中第一接收单元 21用于从用户侧业务通道接收 来自与之相连端口的所述上行业务数据, 所述上行业务数据的业务类型与 所述用户侧业务汇聚模块处理的业务类型相对应, 所述用户侧业务通道用 于在用户侧设备的端口和用户侧业务汇聚模块间传输特定业务类型的业 务数据; 第一映射关系建立单元 22用于根据所述上行业务数据获取用户 设备的 MAC地址、 网络的标识信息和网络侧业务通道的标识信息, 并建 立所述用户设备的 MAC地址、 所述网络的标识信息和所述网络侧业务通 道的标识信息三者与用户侧业务通道的标识之间的映射关系; 第一发送单 元 23用于对所述上行业务数据进行封装, 并向光线路终端发送封装后的 上行业务数据。 该用户侧设备可以通过网络侧业务通道向 OLT发送封装 后的上行业务数据, 所述网络侧业务通道用于在用户侧设备的用户侧业务 汇聚模块和光线路终端间传输特定业务类型的业务数据;第二接收单元 24 用于接收由光线路终端发送的下行业务数据。 该接收可从网络侧业务通道 接收; 所述网络侧业务通道用于在用户侧设备的用户侧业务汇聚模块和光 线路终端间传输特定业务类型的业务数据; 第一查询单元 25用于对所述 下行业务数据进行解封装, 根据该下行业务数据获取用户设备的 MAC地 址、 网络的标识信息和网络侧业务通道的标识信息, 并根据所述用户设备 的 MAC地址、 所述网络的标识信息和网络侧业务通道的标识信息从保存 的映射关系中获取对应的用户侧业务通道的标识, 所述用户侧业务通道用 于在用户侧设备的端口和用户侧业务汇聚模块间传输特定业务类型的业 务数据; 第二发送单元 26用于通过所述用户侧业务通道向与之相连的的 端口发送解封装后的下行业务数据。
本发明上述实施例提供的用户侧设备, 其中包括至少一个用户侧业务 汇聚模块, 该用户侧业务汇聚模块用于处理一种特定业务类型的业务, 其 中的第一映射关系建立单元能够在上行业务数据传输的过程中建立用户 设备的 MAC地址、 所述网络的标识信息和所述网络侧业务通道的标识信 息三者与用户侧业务通道的标识之间的映射关系, 并能够进一步的根据上 述的映射关系进行下行业务数据的传输, 使得在用户侧设备内同一业务类 型的业务都可以汇聚到对应的用户侧业务汇聚模块上, 从而在用户侧设备 和 OLT之间只需要建立与业务类型数目相等的网络侧业务通道即可, 对 于多个端口的情况, 减少了需要配置的业务通道数目, 既能够减少在业务 通道配置时的配置复杂度, 又能够有效降低配置业务通道引起的业务资源 浪费。
本发明上述实施例中, 其中的用户侧设备为光 ONU或 ONT, 而其中 所述特定业务类型的业务可以包括高速互联网业务、 互联网电视业务或互 联网语音业务中的一种或几种。
另外, 上述实施例中的第一发送单元用于对所述上行业务数据进行封 装可以具体为第一发送单元用于对所述上行业务数据进行吉比特无源光 网络封装模式或逻辑链路标识模式的封装; 而对于第一查询单元用于对所 述下行业务数据进行解封装可以具体为第一查询单元用于对所述下行业 务数据进行吉比特无源光网络封装模式或逻辑链路标识模式的解封装。
本发明实施例还提供了一种无源光网络系统, 该无源光网络系统包括 光线路终端, 以及与上述光线路终端连接的至少两个用户侧设备, 该用户 侧设备采用上述实施例提供的用户侧设备。
在上述实施例的基础上, 上述的光线路终端可以包括一个或多个用于 处理特定业务类型业务的业务处理模块以及对应数量的网络侧业务汇聚 模块, 通常会包括多个业务类型的业务, 上述的业务处理模块和网络侧业 务汇聚模块的数量也为多个。 如图 10所示, 该网络侧业务汇聚模块包括 第三接收单元 31、 第二映射关系建立单元 32和第三发送单元 33 , 以及第 四接收单元 34、 第二查询单元 35和第四发送单元 36, 其中第三接收单元 31用于接收由用户侧设备发送的上行业务数据,该接收可以从网络侧业务 通道接收,所述网络侧业务通道用于在用户侧设备和光线路终端间传输特 定业务类型的业务数据; 第二映射关系建立单元 32用于对所述上行业务 数据进行解封装, 获取用户设备的 MAC地址、 网络的标识信息和网络侧 业务通道的标识信息, 建立所述用户设备的 MAC地址、 网络的标识信息 二者与网络侧业务通道的标识信息之间的映射关系; 第三发送单元 33用 于将所述解封装后的上行业务数据发送给与之相连的业务处理模块; 第四 接收单元 34用于接收由光线路终端发送的下行业务数据, 该接收可以从 网络侧业务通道接收,所述网络侧业务通道用于在用户侧设备的用户侧业 务汇聚模块和光线路终端间传输特定业务类型的业务数据; 第二查询单元 35用于对所述下行业务数据进行解封装, 获取的用户设备的 MAC地址和 网络的标识信息, 并根据所述用户设备的 MAC地址和所述网络的标识信 息二者从保存的映射关系中获取网络侧业务通道的标识信息; 第四发送单 元 36用于向用户侧设备发送解封装后的下行业务数据,该发送可以通过所 述网络侧业务通道进行发送。 本发明实施例中, 其中在光线路终端中设置网络侧业务汇聚模块, 该 网络侧业务汇聚模块用于处理一种特定业务类型的业务, 能够实现对多个 用户侧设备发送的同一业务类型的上行业务数据的汇聚, 同时对于每一特 定业务类型的业务, 在用户侧设备的用户侧业务汇聚模块和光线路终端的 网络侧汇聚模块间建立对应的网络侧业务通道, 使得只需要建立与业务类 型数目相等的网络侧业务通道即可, 减少了需要配置的业务通道数目, 既 能够减少在业务通道配置时的配置复杂度, 又能够有效降低配置业务通道 引起的业务资源浪费。
本发明上述实施例提供的 PON系统中数据的传输方法、 用户侧设备 和无源光网络系统, 通过在用户侧设备内设置用于处理一种特定业务类型 的业务的用户侧业务汇聚模块, 能够对用户设备内同一类型的业务进行汇 聚, 同时还可以进一步的在 OLT中设置网络侧业务汇聚模块, 以实现对 多个用户侧设备的同一类型的业务的汇聚, 使得对于每一个用户侧设备和
OLT之间每种业务类型只需要建立一条业务通道即可,从而能够有效减少 OLT与用户侧设备间需要建立的业务通道的数目,进而不仅能够降低通道 配置时的配置难度, 而且能够减少 OLT和用户侧设备间业务通道对业务 资源的需求, 减少对业务资源的浪费。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代 码的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种无源光网络中数据的传输方法, 其特征在于, 在用户侧设备 中设置有一个或多个用户侧业务汇聚模块, 所述用户侧业务汇聚模块用于 处理一种特定业务类型的业务, 所述方法包括:
所述用户侧业务汇聚模块接收来自所述用户侧设备的端口的上行业 务数据, 所述上行业务数据为业务类型与所述用户侧业务汇聚模块处理的 业务类型相对应的上行业务数据;
所述用户侧业务汇聚模块根据接收到的所述上行业务数据获取用户 设备的 MAC地址、 网络的标识信息和网络侧业务通道的标识信息, 并建 立所述用户设备的 MAC地址、 所述网络的标识信息和所述网络侧业务通 道的标识信息三者与用户侧业务通道的标识之间的映射关系;
所述用户侧业务汇聚模块对所述上行业务数据进行封装, 并通过所述 述网络侧业务通道为在所述用户侧设备的用户侧业务汇聚模块和与之相 连的光线路终端间传输特定业务类型的业务数据的通道。
2、 根据权利要求 1所述的传输方法, 其特征在于, 在所述用户侧业 务汇聚模块接收来自所述用户侧设备的端口的上行业务数据之前还包括: 所述用户侧设备的端口根据所述上行业务数据的业务特征获取业务 类型;
所述用户侧设备的端口通过与所述业务类型对应的用户侧业务通道 向对应的用户侧业务汇聚模块发送所述上行业务数据。
3、 根据权利要求 1或 2所述的传输方法, 其特征在于, 所述特定业 务类型的业务为高速互联网业务、 互联网电视业务或互联网语音业务中的 一种或几种。
4、 根据权利要求 1-3任一所述的传输方法, 其特征在于, 所述用户侧 业务汇聚模块对所述上行业务数据进行封装包括:
所述用户侧业务汇聚模块对所述上行业务数据进行吉比特无源光网 络封装模式的封装; 或
所述用户侧业务汇聚模块对所述上行业务数据进行逻辑链路标识模 式的封装。
5、 根据权利要求 1-4任一所述的传输方法, 其特征在于, 在所述光线 路终端中设置有一个或多个网络侧业务汇聚模块, 所述网络侧业务汇聚模 块用于处理一种特定业务类型的业务; 括: 口 一 、 、 ' 、 口
所述网络侧业务汇聚模块接收由所述用户侧设备发送的上行业务数 据;
所述网络侧业务汇聚模块对所述上行业务数据进行解封装, 并获取用 户设备的 MAC地址、 网络的标识信息和网络侧业务通道的标识信息, 建 立所述用户设备的 MAC地址、 网络的标识信息二者与网络侧业务通道的 标识信息之间的映射关系;
所述网络侧业务汇聚模块将所述解封装后的上行业务数据发送给与 之相连的光线路终端的业务处理模块。
6、 根据权利要求 1-5任一所述的传输方法, 其特征在于, 所述用户侧 设备为光网络单元 ONU或光网络终端 ONT。
7、 一种无源光网络中数据的传输方法, 其特征在于, 在用户侧设备 中设置有一个或多个用户侧业务汇聚模块, 所述用户侧业务汇聚模块用于 处理一种特定业务类型的业务, 所述方法包括:
所述用户侧业务汇聚模块从网络侧业务通道接收来自光线路终端的 下行业务数据, 所述网络侧业务通道用于在用户侧设备的用户侧业务汇聚 模块和光线路终端间传输特定业务类型的业务数据;
所述用户侧业务汇聚模块对所述下行业务数据进行解封装, 根据所述 下行业务数据获取用户设备的 MAC地址、 网络的标识信息和网络侧业务 通道的标识信息, 并根据所述用户设备的 MAC地址、 所述网络的标识信 息和网络侧业务通道的标识信息从保存的映射关系中获取对应的用户侧 业务通道的标识, 所述用户侧业务通道为在用户侧设备的端口和所述用户 侧业务汇聚模块间传输特定业务类型的业务数据的通道;
所述用户侧业务汇聚模块通过所述用户侧业务通道向所述用户侧设 备的端口发送解封装后的下行业务数据。
8、 根据权利要求 7所述的数据传输方法, 其特征在于, 所述特定业 务类型的业务为高速互联网业务、 互联网电视业务或互联网语音业务中的 一种或几种。
9、 根据权利要求 7或 8所述的数据传输方法, 其特征在于, 所述用 户侧业务汇聚模块对所述下行业务数据进行解封装包括:
所述用户侧业务汇聚模块对所述下行业务数据进行吉比特无源光网 络封装模式的解封装; 或
所述用户侧业务汇聚模块对所述下行业务数据进行逻辑链路标识模 式的解封装。
10、 根据权利要求 7-9任一所述的数据传输方法, 其特征在于, 在所 述光线路终端中设置有至少一个网络侧业务汇聚模块, 所述网络侧业务汇 聚模块用于处理一种特定业务类型的业务;
所述用户侧业务汇聚模块接收来自光线路终端的下行业务数据之前 还包括:
所述网络侧业务汇聚模块接收所述光线路终端的业务处理模块发送 的下行业务数据;
所述网络侧业务汇聚模块从所述下行业务数据中获取用户设备的
MAC地址和网络的标识信息,并根据所述用户设备的 MAC地址和网络的 标识信息二者从保存的映射关系中获取对应的网络侧业务通道的标识信 自 ·
所述网络侧业务汇聚模块对所述下行业务数据进行封装后, 通过网络 侧业务通道向所述用户侧设备的用户侧业务汇聚模块发送封装后的下行 业务数据, 所述网络侧业务通道用于在用户侧设备的用户侧业务汇聚模块 和光线路终端的网络侧业务汇聚模块间传输特定业务类型的业务数据。
11、 一种用户侧设备, 其特征在于, 包括至少两个端口和一个或多个 的用户侧业务汇聚模块;
所述端口用于接收来自用户的上行业务数据, 根据所述上行业务数据 的业务特征获取业务类型, 通过与所述业务类型对应的用户侧业务通道向 对应的用户侧业务汇聚模块发送所述上行业务数据, 所述用户侧业务通道 用于在用户侧设备的端口和用户侧业务汇聚模块间传输特定业务类型的 业务数据; 所述用户侧业务汇聚模块用于处理一种特定业务类型的业务, 包括: 第一接收单元, 用于从所述用户侧业务通道接收来自与之相连端口的所述 上行业务数据, 所述上行业务数据的业务类型与所述用户侧业务汇聚模块 处理的业务类型相对应;
第一映射关系建立单元, 用于根据所述上行业务数据获取用户设备的
MAC地址、 网络的标识信息和网络侧业务通道的标识信息, 并建立所述 用户设备的 MAC地址、 所述网络的标识信息和所述网络侧业务通道的标 识信息三者与用户侧业务通道的标识之间的映射关系;
第一发送单元, 用于对所述上行业务数据进行封装, 并通过所述网络 侧业务通道发送封装后的上行业务数据, 所述网络侧业务通道用于在用户 侧设备的用户侧业务汇聚模块和光线路终端间传输特定业务类型的业务 数据;
第二接收单元, 用于从所述网络侧业务通道接收来自光线路终端的下 行业务数据;
第一查询单元, 用于对所述下行业务数据进行解封装, 根据所述下行 业务数据获取用户设备的 MAC地址、 网络的标识信息和所述网络侧业务 通道的标识信息, 并根据所述用户设备的 MAC地址、 所述网络的标识信 息和网络侧业务通道的标识信息从保存的映射关系中获取用户侧业务通 道的标识;
第二发送单元, 用于通过所述用户侧业务通道向与之相连的端口发送 解封装后的下行业务数据。
12、 根据权利要求 11所述的用户侧设备, 其特征在于, 所述用户侧 设备为光网络单元 ONU或光网络终端 ONT。
13、 根据权利要求 11或 12所述的用户侧设备, 其特征在于, 所述特 定业务类型的业务为高速互联网业务、 互联网电视业务或互联网语音业务 中的一种或几种。
14、 根据权利要求 11-13中任一所述的用户侧设备, 其特征在于, 所 述第一发送单元用于对所述上行业务数据进行封装包括:
所述第一发送单元用于对所述上行业务数据进行吉比特无源光网络 封装模式或逻辑链路标识模式的封装; 所述第一查询单元用于对所述下行业务数据进行解封装包括: 所述第一查询单元用于对所述下行业务数据进行吉比特无源光网络 封装模式或逻辑链路标识模式的解封装。
15、 一种无源光网络系统, 其特征在于, 包括光线路终端, 以及与所 述光线路终端连接的两个以上的用户侧设备, 所述用户侧设备为权利要求
1 1-14中任一所述的用户侧设备。
16、 根据权利要求 15所述的无源光网络系统, 其特征在于, 所述光 线路终端包括一个或多个用于处理特定业务类型业务的业务处理模块以 及对应数量的网络侧业务汇聚模块, 所述网络侧业务汇聚模块包括:
第三接收单元, 用于从网络侧业务通道接收由用户侧设备发送的上行 业务数据, 所述网络侧业务通道用于在用户侧设备和光线路终端间传输特 定业务类型的业务数据;
第二映射关系建立单元, 用于对所述上行业务数据进行解封装, 并获 取用户设备的 MAC地址、网络的标识信息和网络侧业务通道的标识信息, 建立所述用户设备的 MAC地址、 网络的标识信息二者与网络侧业务通道 的标识信息之间的映射关系;
第三发送单元, 用于将所述解封装后的上行业务数据发送给与之相连 的所述业务处理模块;
第四接收单元, 用于从所述网络侧业务通道接收由光线路终端发送的 下行业务数据;
第二查询单元, 用于对所述下行业务数据进行解封装, 从所述下行业 务数据中获取的用户设备的 MAC地址和网络的标识信息, 并根据所述用 户设备的 MAC地址和所述网络的标识信息二者从映射关系中获取网络侧 业务通道的标识信息;
第四发送单元, 用于通过所述网络侧业务通道向用户侧设备发送解封 装后的下行业务数据。
17、 一种计算机程序产品, 其特征在于, 包括计算机程序代码, 当一 个计算机单元执行所述计算机程序代码时 , 该计算机单元执行如权利要求 1-10所记载的动作。
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