WO2011134434A1 - 数据传输设备、方法以及通信系统 - Google Patents

数据传输设备、方法以及通信系统 Download PDF

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Publication number
WO2011134434A1
WO2011134434A1 PCT/CN2011/073572 CN2011073572W WO2011134434A1 WO 2011134434 A1 WO2011134434 A1 WO 2011134434A1 CN 2011073572 W CN2011073572 W CN 2011073572W WO 2011134434 A1 WO2011134434 A1 WO 2011134434A1
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WO
WIPO (PCT)
Prior art keywords
data transmission
transmission device
packet service
network
service data
Prior art date
Application number
PCT/CN2011/073572
Other languages
English (en)
French (fr)
Inventor
赵永祥
王靖宇
雍文远
顾威
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP11774425.0A priority Critical patent/EP2566233A4/en
Publication of WO2011134434A1 publication Critical patent/WO2011134434A1/zh
Priority to US13/663,983 priority patent/US20130051348A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/17Selecting a data network PoA [Point of Attachment]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • H04W8/082Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/005Data network PoA devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18Service support devices; Network management devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/045Interfaces between hierarchically different network devices between access point and backbone network device
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/14Interfaces between hierarchically different network devices between access point controllers and backbone network device

Definitions

  • the present invention relates to the field of communications, and in particular, to a data transmission device and method, and a communication system. Background technique
  • a node having a service bypass (including service offloading and injection) function is located in a core network, and a user passes the node with the service bypass function and public data.
  • the Public Data Network (PDN) communicates.
  • the Gateway GPRS Support Node of the core network (Gateway GPRS Support Node, GGSN is a node with a service bypass function.
  • the packet service data sent by the user accesses the radio access network through the radio access base station (NodeB), and passes through the radio access network and the IP metropolitan area.
  • the network is transmitted to the Radio Network Controller (RNC).
  • RNC Radio Network Controller
  • the packet service data is transmitted to the serving GPRS support node of the core network through the IP backbone network ( Serving GPRS Support Node (SGSN) and GGSN, the GGSN offloads the packet service data to different service subsystems in the PDN (such as Internet VOIP, Vidio or VAS, etc.) through the Gi interface.
  • the GGSN of the core network Injecting packet service data sent to the user by different service subsystems in the PDN through the Gi interface, and Set of business data through the SGSN core network, IP backbone network, RNC, IP MAN, wireless The access network and the NodeB are transmitted to the user.
  • the node with the service bypass function is located in the core network, and the traffic distribution point/injection point of the service is too high relative to the user, and the packet service data transmitted between the user and the different service subsystems in the PDN needs to go through much.
  • the transmission network and the multiple network elements are transmitted, and the transmission distance is long, the cost is high, and the delay is large, which is not conducive to the development of services requiring high quality of service such as broadband video services.
  • Embodiments of the present invention provide a data transmission device and method, and a communication system, which can save operation and maintenance costs of a wireless network and improve service quality.
  • a data transmission device located at an optical metro terminal of an IP metropolitan area network node or a radio access network, and includes:
  • the first service bypass processing module is configured to receive the uplink packet service data sent by the user equipment, determine, according to the preset service traffic distribution policy, that the uplink packet service data needs to be offloaded, and directly use the uplink packet service data by using a locally preset Gi interface.
  • the second service bypass processing module is configured to receive the downlink packet service data that is sent by the PDN to the user equipment from the Gi interface, and send the downlink packet service data to the User equipment.
  • the data transmission device provided by the embodiment of the present invention is located at an optical metro terminal of the IP metropolitan area network node or the radio access network, and can perform splitting and injection of packet service data transmitted between the user equipment and the PDN, thereby reducing service diversion.
  • the location of the injection point in the network architecture shortens the data transmission distance between the user equipment and the PDN, saves the operation and maintenance cost of the wireless network, improves the service quality of the service, and is suitable for the service quality such as the broadband video service. High business development.
  • a communication system including:
  • the data transmission device is located at an optical metropolitan area network node or an optical line terminal location of the radio access network, and is configured to receive uplink packet service data sent by the user equipment from the radio access device, according to a preset Dedicating the uplink packet service data to the public data network PDN, and/or The downlink packet service data sent by the user equipment, and the downlink packet service data is sent to the wireless access device;
  • the radio access device is located on a radio access network node, and includes an RRU and a baseband unit BBU, where the radio access device is connected to the data transmission device via a high bandwidth bearer network through an IDX interface, and the radio access device
  • the device is configured to receive uplink packet service data sent by the user equipment, send the uplink packet service data to the data transmission device, and/or receive downlink packet service data sent by the data transmission device, and use the downlink packet Service data is sent to the user equipment.
  • the communication system provided by the embodiment of the present invention can split and inject packet service data transmitted between the user equipment and the PDN through a data transmission device located at an optical metropolitan area network node or an optical line terminal location of the radio access network, thereby reducing
  • the location of the service offload/injection point in the network architecture shortens the data transmission distance between the user equipment and the PDN, saves the operation and maintenance cost of the wireless network, improves the service quality of the service, and is suitable for requirements such as broadband video services.
  • Service development with high quality of service Since the wireless access device and the data transmission device adopt a two-level architecture setting, the wireless access device is more flexible in the wireless access network, and meets the requirements of low maintenance cost and flexible deployment of the wireless access.
  • a communication system including:
  • the data transmission device is located at an optical line terminal location of the radio access network, and is configured to receive uplink packet service data of the user equipment sent by the wireless remote unit device by using the baseband unit, and determine the uplink packet service data according to the preset service offload policy.
  • the offloading is performed, and the uplink packet service data is directly offloaded to the public data network PDN through the locally preset Gi interface, and/or the downlink packet service data sent by the PDN to the user equipment is directly received from the Gi interface.
  • Downlink packet service data is sent to the wireless remote unit device by the baseband unit, where the baseband unit is located at the On the data transmission device;
  • the wireless remote unit device is located on the radio access network node, and is connected to the baseband unit of the data transmission device via the high-bandwidth bearer network through the CPRI interface, and is configured to receive uplink packet service data sent by the user equipment, Sending the uplink packet service data to the baseband unit of the data transmission device, and/or receiving downlink packet service data sent by the baseband unit of the data transmission device, and transmitting the downlink packet service data to the user equipment.
  • the communication system provided by the embodiment of the present invention can offload and inject the packet service data transmitted between the user equipment and the PDN through the data transmission device located at the optical line terminal location of the radio access network, thereby reducing the service offload/injection point.
  • the location in the network architecture shortens the data transmission distance between the user equipment and the PDN, saves the operation and maintenance cost of the wireless network, improves the service quality of the service, and is suitable for services requiring high quality of service such as broadband video services. Development; Because the wireless remote unit device and the data transmission device adopt a two-level architecture setting, the wireless remote unit device is more flexible to deploy in the radio access network, and meets the requirements of low maintenance cost and flexible deployment of the wireless access.
  • a data transmission method including: setting, by the data transmission device, at an optical metropolitan area network node or an optical line terminal location of the radio access network, the uplink packet service data sent by the user equipment, according to preset
  • the service offloading policy determines that the uplink packet service data needs to be offloaded, and directly offloads the uplink packet service data to the public data network PDN through a locally preset Gi interface; and/or, the data transmission device directly receives from the Gi interface.
  • the downlink packet service data sent by the PDN to the user equipment, and the downlink packet service data is sent to the user equipment.
  • the data transmission method provided by the embodiment of the present invention divides and injects packet service data transmitted between the user equipment and the PDN through a data transmission device located at an optical metropolitan area network node or an optical line terminal location of the radio access network, and reduces The location of the service offload/injection point in the network architecture shortens the data transmission distance between the user equipment and the PDN, saving the operation and maintenance cost of the wireless network.
  • High service quality suitable for business development such as broadband video services that require high quality of service.
  • FIG. 1 is a schematic diagram of a UMTS/HSAP network architecture in the prior art
  • FIG. 2 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a data transmission device according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a data transmission device according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a data transmission device according to still another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram 1 of a communication system according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram 2 of a communication system according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a communication system according to another embodiment of the present invention.
  • FIG. 9 is a flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 10 is a flowchart of a method for transmitting packet service data between a UE and a PDN by using a data transmission device and a communication system according to an embodiment of the present invention. detailed description
  • the present invention provides a data transmission device, method, and communication system. As shown in FIG. 2, in the data transmission device provided by the embodiment of the present invention, the data transmission device is located on an IP metropolitan area network node, and includes:
  • the first service bypass processing module 201 is configured to receive the uplink packet service data sent by the user equipment (UE), determine that the uplink packet service data needs to be offloaded according to the preset service offload policy, and pass the uplink packet service data.
  • the locally preset Gi interface is directly offloaded to the PDN; and/or,
  • the second service bypass processing module 202 is configured to directly receive the downlink packet service data sent by the PDN to the UE from the Gi interface, and send the downlink packet service data to the user equipment.
  • the first service bypass processing module 201 can be implemented by a local service break gateway (LBO GW) functional unit.
  • the LBO GW may obtain an Access Point Name (APN) from the uplink packet service data, determine, according to the APN and a preset service offload policy, that the uplink packet service data needs to be offloaded, and The service data is directly offloaded to the PDN through the local pre-configured Gi interface.
  • the LBO GW may further obtain information such as the service type from the uplink packet service data by using a deep packet inspection technology (DPI), according to the service type and the like.
  • DPI deep packet inspection technology
  • the pre-set service offloading policy determines that the uplink packet service data needs to be offloaded, and directly offloads the uplink packet service data to the PDN through a locally preset Gi interface.
  • the service offloading policy may be preset in the data transmission device, for example, the storage module may be set in the data transmission device, and the service offload policy may be stored in the storage module; the service offload policy may also be preset in other network elements.
  • the data transmission device (specifically, the first service bypass processing module 201) can obtain the service offloading policy by communicating with the network element, for example, a policy and a charging rule function (PCRF) entity.
  • PCRF charging rule function
  • the service offloading policy may be in the form of multiple types, for example: the service offloading policy may be an APN that needs to be offloaded, if the APN and the service offload included in the uplink packet service data received by the first service bypass processing module 201 If the policy includes the same APN that needs to be offloaded, the uplink packet service data needs to be offloaded.
  • the service offloading policy can be a service type (such as Internet service or video service) that needs to be offloaded.
  • the uplink packet service data received by the module 201 includes the same service type as the traffic split policy, and the uplink packet service data needs to be offloaded.
  • the business offloading strategy can also be set to other forms, and this is not done in each case--details.
  • the first service bypass processing module 201 and/or the second service bypass processing module 202 can communicate with the UE through a wireless access device located on the radio access network close to the user side node.
  • the wireless access device is configured to receive the uplink packet service data sent by the UE, send the uplink packet service data to the first service bypass processing module 201, and/or receive the second service bypass processing module 202.
  • the downlink packet service data is sent, and the downlink packet service data is sent to the UE.
  • the wireless access device includes a Radio Remote Unit (RU) 2021 and a Base Band Unit (BBU) 2022, and the wireless access device can be independently set as a separate device. It may be embedded in a radio access network close to a user side node (such as a NodeB under a UMTS/HSPA network structure, or an eNodeB under an LTE network architecture); at this time, the wireless access device may be connected to the first service bypass processing module.
  • the 201 and/or the second service bypass processing module 202 communicates via a high-bandwidth bearer network (such as a fiber-optic network) through an internal data exchange (IDX) interface.
  • IDX internal data exchange
  • the quality of the packet service data transmitted between the data transmission device and the wireless access device may be greatly affected by the network environment.
  • the data transmission device can also It is set at the optical line terminal (OLT) position of the radio access network.
  • the data transmission device may also have a cache (Cache), and the telecommunication operator actively participates in the P2P network (Proactive network Provider Participation).
  • P2P Proactive network Provider Participation
  • P4P Exchange service processing and firewall (Firewall) and other functions.
  • the data transmission device provided by the embodiment of the present invention is located at an OLT location of an IP metropolitan area network node or a radio access network, and can perform splitting and injection of packet service data transmitted between the UE and the PDN, thereby reducing service split/injection points.
  • the location in the network architecture shortens the data transmission distance between the UE and the PDN, saves the operation and maintenance cost of the wireless network, improves the service quality of the wireless network, and is suitable for services such as broadband video services.
  • the data transmission device and the wireless access device provided by the embodiment adopt a two-level architecture setting, so that the wireless access device is more flexible in the wireless access network, and meets the low maintenance cost and flexible deployment of the wireless access device. demand.
  • Another embodiment of the present invention further provides a data transmission device, which is substantially similar to that shown in FIG. 2, and the difference is:
  • the data transmission device provided by the embodiment of the present invention may further include:
  • the first management module 203 is configured to manage and control the radio resource when the data transmission device is applied to the 3G network architecture (such as UMTS/HSPA, etc.), and provide a communication connection interface with other network elements; and/or,
  • the 3G network architecture such as UMTS/HSPA, etc.
  • the second management module 204 is configured to manage and control the radio resources when the data transmission device is applied to the Long Term Evolution (LTE) network architecture, and provide a communication connection interface with other network elements.
  • LTE Long Term Evolution
  • the first management module 203 may have a radio resource control function (such as an RNC function), an Iub, Iu-CS/PS, and an Iur interface function, and optionally, may also have a GGSN function;
  • the second management module 204 may have SI and X2 interface functions and the like, and may also have a PDN Gateway (P-GW) function.
  • P-GW PDN Gateway
  • the first service bypass processing module 201 may adopt a preset Iu-PS locally.
  • the interface or the S1 interface transmits the uplink packet service data to the GGSN/P-GW of the core network through the SGSN of the IP backbone network and the core network or the mobility management entity (MME), and the GGSN/P-GW The uplink packet service data is transmitted to the PDN.
  • MME mobility management entity
  • the data transmission device may further include: a control module 205, configured to: the first service bypass processing module 201, the second service bypass processing module 202, and the first management
  • the function settings and working states of the module 203 and the second management module 204 are managed and controlled.
  • the control module 205 can set and work on the functions of the first service bypass processing module 201, the second service bypass processing module 202, the first management module 203, and the second management module 204 in a software controlled manner. Status is managed and controlled. For example, when the data transmission device provided by the embodiment of the present invention is applied to the UMTS/HSPA network architecture, the control module 205 can start the first management module 203 in a software controlled form and close the second management module 204; When upgrading the wireless network from UMTS/HSPA to LTE, the control module 205 may close the first management module 203 in a software controlled form and start the second management module 204; for example: the control module 205 may be in the form of software controlled data.
  • the transport device adds features such as Firewall or P4P switch.
  • the data transmission device provided by the embodiment of the present invention can further improve the radio resource management and control under the 3G and/or LTE network architecture on the basis of reducing the location of the service offload/injection point and shortening the data transmission distance between the UE and the PDN. And functions such as communication connection interfaces with other network elements;
  • the data transmission device provided by the embodiment of the present invention has the radio resource management and control functions of the 3G and LTE network architectures, so that the technical solution provided by the embodiment of the present invention avoids the prior art, and the LTE network does not have the RNC device because the 3G network includes the RNC device.
  • the deployment of the ingress device in the radio access network is more flexible, which reduces the network operation and maintenance cost, and solves the problem that the existing technology in the LTE network architecture has a large number of evolved base stations (integrated radio access and interface functions), resulting in an evolved base station.
  • the problem is that the connection between the other network elements (such as the core network element or the other evolved base station) is complicated, and the network operation and the maintenance cost are high.
  • the data transmission device provided by the embodiment of the present invention can bypass the first service by using the control module.
  • the processing module, the second service bypass processing module, the first management module, and the second management module The data transmission device provided by the embodiment of the present invention is more suitable for the smooth evolution of the network.
  • Another embodiment of the present invention further provides a data transmission device, which is basically similar to that shown in FIG. 2, and the difference is:
  • the data transmission device provided by the embodiment of the present invention may further include:
  • the baseband unit module 206 is configured to communicate with a radio access device, that is, an RRU, through a common public radio interface (CPRI), and communicate with the UE through the RRU.
  • a radio access device that is, an RRU
  • CPRI common public radio interface
  • the baseband unit module 206 can communicate with the RRU through a high-bandwidth bearer network (such as a fiber-optic network) through the CPRI, receive the uplink packet service data sent by the RRU, and send the uplink packet service data to the first service bypass processing.
  • the module 201 performs processing; and/or, the baseband unit module 206 receives the downlink packet service data sent by the second service bypass processing module 202, and sends the downlink packet service data through the high bandwidth bearer network (such as a fiber network, etc.) through the CPRI.
  • the high bandwidth bearer network such as a fiber network, etc.
  • the data transmission device provided by the embodiment of the present invention further reduces the data transmission distance between the UE and the PDN by reducing the data distribution/injection point location, and further moves the baseband unit (BBU) to the data transmission device, so that The data transmission device can form a baseband unit pool (BBU Pool) internally, which increases BBU resource sharing and improves cell edge gain.
  • BBU baseband unit
  • a further embodiment of the present invention further provides a data transmission device, which is substantially similar to that shown in FIG. 3, and the difference is:
  • the data transmission device provided by the embodiment of the present invention may further include:
  • the baseband unit module 206 is configured to communicate with the radio access device, that is, the RRU, through the CPRI, and communicate with the UE through the RU.
  • the baseband unit module 206 communicates with the RRU through a high-bandwidth bearer network (such as a fiber-optic network) through the CPRI, and receives the uplink packet service data sent by the RU, and sends the uplink packet service data to the first service bypass processing module. 201.
  • the first management module 203 or the second management module 204 performs processing; and/or, the baseband unit module 206 receives the downlink sent by the second service bypass processing module 202, the first management module 203, or the second management module 204.
  • the packet service data is sent to the RRU through the high-bandwidth bearer network (such as a fiber network) through the CPRI, and the downlink packet service data is sent by the RRU to the UE.
  • the data transmission device provided by the embodiment of the present invention can further improve the radio resource management and control under the 3G and/or LTE network architecture on the basis of reducing the location of the service offload/injection point and shortening the data transmission distance between the UE and the PDN. And the function of the communication connection interface with other network elements; the data transmission device provided by the embodiment of the present invention has the radio resource management and control functions of the 3G and LTE network architectures, so that the technical solution provided by the embodiment of the present invention is avoided.
  • the RNC device and the LTE network do not have the RNC device, which causes the operator equipment investment loss problem during the network evolution; the data transmission device integrated interface functions (such as Iub, Iu-CS/PS and Iur interfaces, and SI and Integration of X2 interfaces, etc., makes the deployment of wireless access devices more flexible in the radio access network, reduces network operation and maintenance costs, and solves the existing technology in the LTE network architecture due to evolved base stations (integrated wireless access and interfaces)
  • the number of functions is large, which causes a problem that the connection between the evolved base station and other network elements (such as the core network element or the other evolved base station) is complicated, and the network operation and maintenance cost is high.
  • the data transmission device provided by the embodiment of the present invention can The data transmission device provided by the embodiment of the present invention is configured and managed by the control module to manage and control the function setting and the working state of the first service bypass processing module, the second service bypass processing module, the first management module, and the second management module. More suitable for smooth evolution of the network; due to the baseband unit module, enabling data transmission Preparation of the base band unit can be constructed inside the pool (Pool BBU), an increase of BBU sharing of resources, while improving cell edge gain.
  • Pool BBU pool
  • the embodiment of the present invention further provides a communication system, including:
  • the data transmission device 601 is located on the IP metropolitan area network node, and is configured to receive the uplink packet service data sent by the UE from the radio access device 602, and determine, according to the preset service offload policy, that the uplink packet service data needs to be offloaded, and the uplink packet is used.
  • the service data is directly offloaded to the public data network PDN through the locally preset Gi interface, and/or is used to directly receive the downlink packet service data sent by the PDN to the UE from the Gi interface, and send the downlink packet service data to the wireless access device. 602;
  • the wireless access device 602 can be located on the user access node of the wireless access network, including the RU and the BBU.
  • the wireless access device 602 is connected to the data transmission device 601 through the high-bandwidth bearer network through the IDX interface, and the wireless access device 602 is used by the wireless access device 602.
  • Receiving the uplink packet service data sent by the UE transmitting the uplink packet service data to the data transmission device 601, and/or receiving the downlink packet service data sent by the data transmission device 601, and transmitting the downlink packet service data to the UE.
  • the data transmission device 601 can also be used to manage and control radio resources when the application is in the 3G network architecture, provide a communication connection interface with other network elements, and/or, when the application is in the LTE architecture. In the following, the radio resources are managed and controlled to provide a communication connection interface with other network elements.
  • the data transmission device 601 when the data transmission device 601 is configured to manage and control radio resources in the 3G network architecture to provide a communication connection interface with other network elements, the data transmission device 601 may have a radio resource control function (for example, an RNC function). And Iub, Iu-CS/PS and Iur interface functions, etc., optionally, may also have a GGSN function; when the data transmission device 601 is used to manage and control radio resources under the LTE network architecture, provide other network elements When the communication interface is connected, the data transmission device 601 may have an S1 and X2 interface function or the like, and may alternatively have a P-GW function.
  • a radio resource control function for example, an RNC function
  • Iub, Iu-CS/PS and Iur interface functions, etc. optionally, may also have a GGSN function; when the data transmission device 601 is used to manage and control radio resources under the LTE network architecture, provide other network elements
  • the data transmission device 601 may have an S1 and X2 interface function
  • the data transmission device 601 may use the local pre-set Iu-PS interface or the S1 interface to group the packet.
  • the service data is transmitted to the GGSN/P-GW of the core network through the SGSN/MME of the IP backbone network and the core network, and the uplink packet service data is transmitted by the GGSN/P-GW to the PDN.
  • the data transmission device 601 may also have functions such as a Cache, a P4P Switch, and a Firewall.
  • the data transmission device 601 can also be disposed at the OLT location of the radio access network.
  • the specific implementation of the communication system provided by the embodiment of the present invention can be referred to the data transmission device provided by the embodiment of the present invention, and details are not described herein.
  • the communication system provided by the embodiment of the present invention can offload and inject packet service data transmitted between the UE and the PDN through a data transmission device located at an OLT location of the IP metropolitan area network node or the radio access network, thereby reducing service diversion.
  • the location of the injection point in the network architecture shortens the data transmission distance between the UE and the PDN, saves the operation and maintenance cost of the wireless network, improves the service quality of the wireless network, and is suitable for services such as broadband video services.
  • the data transmission device has the radio resource management and control functions of the 3G and LTE network architectures, so that the technical solution provided by the embodiment of the present invention avoids the prior art, because the 3G network includes the RNC device and the LTE network does not have the RNC.
  • another embodiment of the present invention further provides a communication system, including:
  • the data transmission device 801 is located on the OLT of the radio access network, and is configured to receive the uplink packet service data of the UE sent by the wireless remote unit device 802 through the baseband unit 8011, and determine the uplink packet service data according to the preset service offload policy.
  • the downlink packet service data is directly offloaded to the PDN through the locally preset Gi interface, and/or the downlink packet service data sent by the PDN to the UE is directly received from the Gi interface, and the downlink packet service data is sent through the baseband unit 8011.
  • the baseband unit 8011 is located on the data transmission device 801;
  • the wireless remote unit device 802 is located on the user access node of the radio access network, and is connected to the baseband unit 8011 of the data transmission device 801 through the high-bandwidth bearer network through the CPRI interface, and is configured to receive uplink packet service data sent by the UE, and The uplink packet service data is sent to the data transmission device 801.
  • the data transmission device 801 can also be used to manage and control radio resources when the application is in the 3G network architecture, provide a communication connection interface with other network elements, and/or, when the application is in the long term evolution Under the network architecture, the radio resources are managed and controlled to provide a communication connection interface with other network elements.
  • the data transmission device 801 when the data transmission device 801 is configured to manage and control radio resources in the 3G network architecture and provide a communication connection interface with other network elements, the data transmission device 801 may have a radio resource control function (for example, an RNC function). And Iub, Iu-CS/PS, and Iur interface functions, etc., optionally, may also have a GGSN function; when the data transmission device 801 is used to manage and control radio resources under the LTE network architecture, and provide other network elements. When the communication interface is connected, the data transmission device 801 may have an S1 and X2 interface function or the like, and may alternatively have a P-GW function.
  • a radio resource control function for example, an RNC function
  • Iub, Iu-CS/PS, and Iur interface functions, etc. optionally, may also have a GGSN function; when the data transmission device 801 is used to manage and control radio resources under the LTE network architecture, and provide other network elements.
  • the data transmission device 801 When the communication interface is
  • the data transmission device 801 may use the local pre-set Iu-PS interface or the S1 interface to group the packet.
  • the service data is transmitted to the GGSN/P-GW of the core network through the SGSN/MME of the IP backbone network and the core network, and the uplink packet service data is transmitted by the GGSN/P-GW to the PDN.
  • the data transmission device 801 may also have functions such as a Cache, a P4P Switch, and a Firewall.
  • the communication system provided by the embodiment of the present invention is capable of splitting and injecting packet service data transmitted between the UE and the PDN through a data transmission device located at an optical line terminal location of the radio access network,
  • the location of the service offload/injection point in the network architecture is reduced, the data transmission distance between the user equipment and the PDN is shortened, the operation and maintenance cost of the wireless network is saved, the service quality is improved, and the service is suitable for, for example, a broadband video service.
  • the data transmission device has the radio resource management and control functions of the 3G and LTE network architectures, so that the technical solution provided by the embodiment of the present invention avoids the prior art, because the 3G network includes the RNC device and the LTE
  • the network does not have RNC equipment, which causes the loss of operator equipment investment during the network evolution process; because the data transmission equipment integrates interface functions (such as Iub, Iu-CS/PS and Iur interfaces, and S1 and X2 interfaces, etc.), the wireless remote end
  • the deployment of the unit equipment in the radio access network is more flexible, which reduces the network operation and maintenance costs, and solves the problem that the existing technology in the LTE network architecture has a large number of evolved base stations (integrated radio access and interface functions), resulting in an evolved base station.
  • the baseband unit pool (BBU Pool) can be formed inside the data transmission device, which increases the BBU resource sharing and improves the cell edge gain.
  • an embodiment of the present invention further provides a data transmission method, including:
  • Step 901 The data transmission device that is located at the optical line terminal of the IP metropolitan area network node or the radio access network receives the uplink packet service data sent by the user equipment, and determines that the uplink packet service data needs to be offloaded according to the preset service offload policy. And directly offloading the uplink packet service data to the public data network PDN through a locally preset Gi interface; and/or,
  • Step 902 The data transmission device directly receives the downlink packet service data sent by the PDN to the user equipment from the Gi interface, and sends the downlink packet service data to the user equipment.
  • the service offloading policy may be in the form of multiple types.
  • the service offloading policy may be an APN that needs to be offloaded. If the APN included in the uplink packet service data is the same as the APN required to be offloaded in the service offloading policy, Upstream packet service data needs to be offloaded; The service type of the service that needs to be offloaded (such as the Internet service, or the video service, etc.) is required. If the service type of the uplink packet service data is the same as the service type of the traffic split policy that needs to be offloaded, the uplink packet service data needs to be offloaded. .
  • the business offloading strategy can also be set to other forms, and this is not done in each case--details.
  • Step 901 may be completed before step 902, or may be completed after step 902.
  • the data transmission method provided by the embodiment of the present invention may further include:
  • the uplink packet service data is transmitted to the core network through the IP backbone network and the SGSN or MME of the core network through the local preset Iu-PS interface or the S1 interface.
  • the GGSN or the P-GW transmits the uplink packet service data to the PDN by the GGSN or the P-GW.
  • the data transmission method provided by the embodiment of the present invention may further include:
  • the data transmission device manages and controls the radio resources through pre-set radio resource control functions and/or GGSN functions; and/or,
  • the data transmission device manages and controls the radio resources through pre-configured P-GW functions.
  • the data transmission method provided by the embodiment of the present invention divides and injects packet service data transmitted between the user equipment and the PDN through a data transmission device located at an optical metropolitan area network node or an optical line terminal location of the radio access network, and reduces The location of the service offload/injection point in the network architecture shortens the data transmission distance between the user equipment and the PDN, saves the operation and maintenance cost of the wireless network, improves the service quality of the service, and is suitable for requirements such as broadband video services.
  • the data transmission device can provide radio resource management and control under the 3G and/or LTE network architecture, and a communication connection interface with other network elements, and the radio resource management with both 3G and LTE network architectures And the control function, so that the technical solution provided by the embodiment of the present invention avoids the prior art, because the 3G network includes the RNC device and the LTE network does not have the RNC device, causing the operator device investment loss problem during the network evolution process; Interface functions (such as Iub, Iu-CS/PS, and Iur interfaces, and SI and X2 interfaces) make the deployment of wireless access devices more flexible in the wireless access network, reducing network operation and maintenance costs, and solving the problem.
  • the technology has a large number of evolved base stations (integrated wireless access and interface functions) under the LTE network architecture, resulting in complex connection between the evolved base station and other network elements (such as core network elements or other evolved base stations), network operation and The problem of high maintenance costs.
  • the data transmission device and the communication system provided by the embodiments of the present invention are used to transmit packets between the UE and the PDN in the UMTS/HSPA architecture.
  • the business data is described as an example.
  • a method for transmitting packet service data between a UE and a PDN by using a data transmission device and a communication system includes:
  • Step 1001 The UE initiates a wireless network access request to the data transmission device by using the wireless access device to obtain the wireless network access authority.
  • Step 1002 The UE initiates a packet domain service request to the GGSN of the core network, and performs Non-Access Stratum (NAS) authentication with the GGSN to obtain an IP address.
  • NAS Non-Access Stratum
  • the UE may initiate a packet domain service request to the data transmission device, perform NAS authentication on the UE by the data transmission device, and allocate an IP address to the UE.
  • uplink packet service data transmission is required,
  • Step 1003 The UE sends the uplink packet service data to the wireless access device.
  • the radio access device may include an RRU and a BBU, and the UE specifically sends the uplink packet service data to the RRU of the radio access device, and then the RRU transmits the data to the BBU.
  • Step 1004 The radio access device sends the uplink packet service data of the UE to the data transmission device through the optical fiber network through the IDX interface.
  • step 1005 the data transmission device determines whether the uplink packet service data needs to be offloaded according to the preset service traffic distribution policy. If the traffic distribution is required, step 1006 is performed; otherwise, step 1007 is performed.
  • the data transmission device may obtain a service offload policy from a local pre-configured storage module, or may obtain a service offload policy from other network elements (such as a PCRF); the data transmission device may be based on the service offload policy and the user and the service.
  • the different APNs determine whether the uplink packet service data of the UE needs to be offloaded. Further, when the APNs are the same, the data transmission device may further obtain the IP of the target service server from the uplink packet service data by using Deep Packet Detection (DPI).
  • DPI Deep Packet Detection
  • the information such as the address or the service type determines whether the uplink packet service data needs to be offloaded according to the information such as the IP address or the service type of the target service server and the service offload policy.
  • Step 1006 The data transmission device directly streams the uplink packet service data of the UE to the service server of the PDN through the locally pre-configured Gi interface, and completes uplink packet service data transmission.
  • Step 1007 The data transmission device sends the uplink packet service data of the UE to the GGSN through the IP backbone network and the SGSN of the core network through the locally preset Iu-PS interface, and the GGSN sends the uplink packet service data to the service server of the PDN. , complete the uplink packet service data transmission.
  • Step 1008 The data transmission device directly receives the downlink packet service data sent by the service server to the UE from the PDN through the Gi interface.
  • Step 1009 The data transmission device sends the downlink packet service data to the wireless access device through the optical network through the IDX interface.
  • Step 1010 The wireless access device sends the downlink packet service data to the UE to complete downlink packet service data transmission.
  • the data transmission device, the method, and the communication system provided by the embodiments of the present invention can perform the offloading and injection of the packet service data transmitted between the user equipment and the PDN through the data transmission device located on the IP metropolitan area network node, thereby reducing the service offload/
  • the location of the injection point in the network architecture shortens the data transmission distance between the user equipment and the PDN, saves the operation and maintenance cost of the wireless network, improves the service quality of the service, and is suitable for the service quality such as the broadband video service.
  • Business development Since the wireless access device and the data transmission device adopt a two-level architecture setting, the wireless access device is more flexible in the wireless access network, and meets the requirements of low maintenance cost and flexible deployment of the wireless access.
  • the data transmission device, method and communication system provided by the embodiments of the present invention can be applied to a wireless communication system such as 3G or LTE.

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Description

数据传输设备、 方法以及通信系统 本申请要求于 2010年 4月 30日提交中国专利局、申请号为 201010160890.4、 发明名称为 "数据传输设备、 方法以及通信系统" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域, 尤其涉及一种数据传输设备和方法以及通信系统。 背景技术
在现有的无线通信系统分组域(Packet Switch, PS )网络中, 具有业务旁路 (包括业务分流和注入) 功能的节点位于核心网中, 用户通过该具有业务旁路 功能的节点与公共数据网 (Public Data Network, PDN )进行通信。
例如: 如图 1 所示, 在通用移动通信系统 ( Universal Mobile Telecommunications System, UMTS ) /高速分组接入 ( High Speed Packet Access, HSPA ) 网络中, 核心网的网关 GPRS支持节点 ( Gateway GPRS Support Node, GGSN )为具有业务旁路功能的节点, 当进行上行数据传输时, 用户发送的分组 业务数据通过无线接入基站( NodeB )接入到无线接入网, 经过该无线接入网和 IP城域网传输到无线网络控制器(Radio Network Controller, RNC ), RNC完成 无线资源的处理以及与核心网的协议适配后, 将该分组业务数据经过 IP骨干网 传输至核心网的服务 GPRS支持节点 ( Serving GPRS Support Node, SGSN )和 GGSN, GGSN通过 Gi接口将该分组业务数据分流到 PDN中不同的业务子系统 (如 Internet VOIP, Vidio或者 VAS等); 当进行下行数据传输时, 核心网的 GGSN通过 Gi接口注入 PDN中不同的业务子系统向用户发送的分组业务数据, 并将该分组业务数据通过核心网的 SGSN、 IP骨干网、 RNC、 IP城域网、 无线 接入网以及 NodeB传输给用户。
现有技术中, 具有业务旁路功能的节点位于核心网中, 相对用户而言, 业 务的分流点 /注入点太高,用户与 PDN中不同业务子系统之间传输的分组业务数 据需要经过多级传输网以及多个网元进行传输, 传输距离较长、 费用较高、 延 时较大, 不利于如宽带视频业务等要求服务质量较高的业务发展。 发明内容
本发明的实施例提供一种数据传输设备和方法以及通信系统, 能够节省无 线网络的运营和维护成本, 提高业务服务质量。
一方面, 提供了一种数据传输设备, 该数据传输设备位于 IP城域网络节点 或者无线接入网的光线路终端位置上, 包括:
第一业务旁路处理模块, 用于接收用户设备发送的上行分组业务数据, 根 据预先设置的业务分流策略确定该上行分组业务数据需要分流, 将该上行分组 业务数据通过本地预先设置的 Gi接口直接分流到公共数据网 PDN; 和 /或, 第二业务旁路处理模块, 用于从所述 Gi接口直接接收 PDN向所述用户设 备发送的下行分组业务数据, 将该下行分组业务数据发送给所述用户设备。
本发明实施例提供的数据传输设备, 位于 IP城域网络节点或者无线接入网 的光线路终端位置上, 能够对用户设备和 PDN之间传输的分组业务数据进行分 流和注入,降低了业务分流 /注入点在网络架构中的位置,缩短了用户设备和 PDN 之间的数据传输距离, 节省了无线网络的运营和维护成本, 提高了业务服务质 量, 适于如宽带视频业务等要求服务质量较高的业务发展。
另一方面, 还提供了一种通信系统, 包括:
数据传输设备,位于 IP城域网络节点或者无线接入网的光线路终端位置上, 用于从无线接入设备接收用户设备发送的上行分组业务数据, 根据预先设置的 业务分流策略确定该上行分组业务数据需要分流, 将该上行分组业务数据通过 本地预先设置的 Gi接口直接分流到公共数据网 PDN, 和 /或, 用于从所述 Gi接 口直接接收 PDN向所述用户设备发送的下行分组业务数据, 将该下行分组业务 数据发送给所述无线接入设备;
所述无线接入设备, 位于无线接入网节点上, 包括 RRU和基带单元 BBU, 所述无线接入设备通过 IDX接口, 经高带宽承载网与所述数据传输设备相连, 所述无线接入设备用于接收所述用户设备发送的上行分组业务数据, 将该上行 分组业务数据发送给所述数据传输设备, 和 /或, 接收所述数据传输设备发送的 下行分组业务数据, 将该下行分组业务数据发送给所述用户设备。
本发明实施例提供的通信系统, 能够通过位于 IP城域网络节点或者无线接 入网的光线路终端位置上的数据传输设备对用户设备和 PDN之间传输的分组业 务数据进行分流和注入, 降低了业务分流 /注入点在网络架构中的位置, 缩短了 用户设备和 PDN之间的数据传输距离, 节省了无线网络的运营和维护成本, 提 高了业务服务质量, 适于如宽带视频业务等要求服务质量较高的业务发展; 由 于无线接入设备与数据传输设备采用两级架构设置, 无线接入设备在无线接入 网中部署更灵活, 满足无线接入低维护成本和灵活部署的需求。
另一方面, 还提供了一种通信系统, 包括:
数据传输设备, 位于无线接入网的光线路终端位置上, 用于通过基带单元 接收无线远端单元设备发送的用户设备的上行分组业务数据, 根据预先设置的 业务分流策略确定该上行分组业务数据需要分流, 将该上行分组业务数据通过 本地预先设置的 Gi接口直接分流到公共数据网 PDN, 和 /或, 从所述 Gi接口直 接接收 PDN向所述用户设备发送的下行分组业务数据, 将该下行分组业务数据 通过所述基带单元发送给所述无线远端单元设备, 其中, 所述基带单元位于所 述数据传输设备上;
所述无线远端单元设备, 位于无线接入网节点上, 通过 CPRI接口, 经高带 宽承载网与所述数据传输设备的基带单元相连, 用于接收所述用户设备发送的 上行分组业务数据, 将该上行分组业务数据发送到所述数据传输设备的基带单 元, 和 /或, 接收所述数据传输设备的基带单元发送的下行分组业务数据, 将该 下行分组业务数据发送给所述用户设备。
本发明实施例提供的通信系统, 能够通过位于无线接入网的光线路终端位 置上的数据传输设备对用户设备和 PDN之间传输的分组业务数据进行分流和注 入, 降低了业务分流 /注入点在网络架构中的位置, 缩短了用户设备和 PDN之间 的数据传输距离, 节省了无线网络的运营和维护成本, 提高了业务服务质量, 适于如宽带视频业务等要求服务质量较高的业务发展; 由于无线远端单元设备 与数据传输设备采用两级架构设置, 无线远端单元设备在无线接入网中部署更 灵活, 满足无线接入低维护成本和灵活部署的需求。
再一方面, 还提供了一种数据传输方法, 包括: 设置在 IP城域网络节点或 者无线接入网的光线路终端位置上的数据传输设备接收用户设备发送的上行分 组业务数据, 根据预先设置的业务分流策略确定该上行分组业务数据需要分流, 将该上行分组业务数据通过本地预先设置的 Gi接口直接分流到公共数据网 PDN; 和 /或, 所述数据传输设备从所述 Gi接口直接接收 PDN向所述用户设备 发送的下行分组业务数据, 将该下行分组业务数据发送给所述用户设备。
本发明实施例提供的数据传输方法, 通过位于 IP城域网络节点或者无线接 入网的光线路终端位置上的数据传输设备对用户设备和 PDN之间传输的分组业 务数据进行分流和注入, 降低了业务分流 /注入点在网络架构中的位置, 缩短了 用户设备和 PDN之间的数据传输距离, 节省了无线网络的运营和维护成本, 提 高了业务服务质量, 适于如宽带视频业务等要求服务质量较高的业务发展。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述 中的附图仅仅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 UMTS/HSAP网络架构示意图;
图 2为本发明实施例提供的数据传输设备结构示意图;
图 3为本发明另一实施例提供的数据传输设备结构示意图;
图 4为本发明又一实施例提供的数据传输设备结构示意图;
图 5为本发明再一实施例提供的数据传输设备结构示意图;
图 6为本发明实施例提供的通信系统结构示意图一;
图 7为本发明实施例提供的通信系统结构示意图二;
图 8为本发明另一实施例提供的通信系统结构示意图;
图 9为本发明实施例提供的数据传输方法流程图;
图 10为采用本发明实施例提供的数据传输设备和通信系统传输 UE和 PDN 之间的分组业务数据的方法流程图。 具体实施方式
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, 所描述的实施例仅仅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。
为了解决现有无线网络运营和维护成本较高, 无线宽带业务服务质量较差 的问题, 本发明实施例提供一种数据传输设备、 方法以及通信系统。 如图 2所示, 本发明实施例提供的数据传输设备, 所述数据传输设备位于 IP城域网络节点上, 包括:
第一业务旁路处理模块 201, 用于接收用户设备( User Equipment, UE )发 送的上行分组业务数据, 根据预先设置的业务分流策略确定该上行分组业务数 据需要分流, 将该上行分组业务数据通过本地预先设置的 Gi接口直接分流到 PDN; 和 /或,
第二业务旁路处理模块 202, 用于从 Gi接口直接接收 PDN向 UE发送的下 行分组业务数据, 将该下行分组业务数据发送给用户设备。
在本实施例中, 第一业务旁路处理模块 201 可以通过本地业务分流网关 ( Local Break Out Gateway, LBO GW )功能单元实现。 具体地, LBO GW可以 从所述上行分组业务数据中获取接入点名称( Access Point Name, APN ), 根据 该 APN和预先设置的业务分流策略确定该上行分组业务数据需要分流, 将该上 行分组业务数据通过本地预先设置的 Gi接口直接分流到 PDN; 进一步地, LBO GW还可以采用深度报文检测技术( DPI )从所述上行分组业务数据中获取业务 类型等信息, 根据该业务类型等信息以及预先设置的业务分流策略确定该上行 分组业务数据需要分流, 将该上行分组业务数据通过本地预先设置的 Gi接口直 接分流到 PDN。
在本实施例中, 业务分流策略可以预先设置在数据传输设备中, 如可以在 数据传输设备中设置存储模块, 在该存储模块中存储业务分流策略; 业务分流 策略也可以预先设置在其他网元上, 如策略和计费规则功能(PCRF ) 实体等, 数据传输设备(具体为第一业务旁路处理模块 201 )可以通过与该网元进行通信 的方式获取业务分流策略。 在本实施例中, 业务分流策略的形式可以为多种, 例如: 业务分流策略可 以为需要分流的 APN, 如果第一业务旁路处理模块 201接收到的上行分组业务 数据包含的 APN与业务分流策略包含的需要分流的 APN相同, 则该上行分组 业务数据需要分流; 再如: 业务分流策略可以为需要分流业务的业务类型 (如 Internet业务,或者视频业务等),如果第一业务旁路处理模块 201接收到的上行 分组业务数据包含的业务类型与业务分流策略包含的需要分流的业务类型相 同, 则该上行分组业务数据需要分流。 当然, 在实际的使用过程中还可以将业 务分流策略设置成其他形式, 此处不对每种情况进行——赘述。
在本实施例中,第一业务旁路处理模块 201和 /或第二业务旁路处理模块 202 可以通过位于无线接入网靠近用户侧节点上的无线接入设备与 UE进行通信。
其中, 所述无线接入设备, 用于接收 UE发送的上行分组业务数据, 将该上 行分组业务数据发送给第一业务旁路处理模块 201, 和 /或, 接收第二业务旁路 处理模块 202发送的下行分组业务数据, 将该下行分组业务数据发送给 UE。
在本实施例中,无线接入设备包括无线远端单元( Radio Remote Unit, R U ) 2021和基带单元(Base Band Unit, BBU ) 2022, 该无线接入设备可以作为一个 单独的设备独立设置, 也可以嵌入在无线接入网靠近用户侧节点 (如 UMTS/HSPA网络结构下的 NodeB , 或者, LTE网络架构下的 eNodeB等)上; 此时, 无线接入设备可以与第一业务旁路处理模块 201和 /或第二业务旁路处理 模块 202之间通过内部数据交换协议 ( Internal Data Exchange, IDX )接口, 经 高带宽承载网 (如光纤网络等)进行通信。
进一步地, 为了避免由于本发明实施例提供的数据传输设备相对于无线接 入设备的位置较高, 导致数据传输设备与无线接入设备之间传输分组业务数据 的质量可能受网络环境影响较大的问题, 在本实施例中, 数据传输设备也可以 设置在无线接入网的光线路终端 ( Optical Line Terminal, OLT )位置上。
进一步地, 为了提高本发明实施例提供的数据传输设备的服务质量, 在本 实施例中, 数据传输设备还可以具有如高速緩存(Cache )、 电信运营商主动参 与 P2P网洛 ( Proactive network Provider Participation for P2P, P4P ) 交换业务处 理以及防火墙(Firewall )等功能。
本发明实施例提供的数据传输设备, 位于 IP城域网络节点或者无线接入网 的 OLT位置上, 能够对 UE和 PDN之间传输的分组业务数据进行分流和注入, 降低了业务分流 /注入点在网络架构中的位置, 缩短了 UE和 PDN之间的数据传 输距离, 节省了无线网络的运营和维护成本, 提高了无线网络的业务服务质量, 适于如宽带视频业务等要求服务质量较高的业务发展; 由于本实施例提供的数 据传输设备与无线接入设备采用两级架构设置, 使得无线接入设备在无线接入 网中部署更灵活, 满足无线接入低维护成本和灵活部署的需求。
本发明另一实施例还提供一种数据传输设备, 该数据传输设备与如图 2所 示的基本相似, 区别在于:
如图 3所示, 本发明实施例提供的数据传输设备还可以包括:
第一管理模块 203, 用于当数据传输设备应用在 3G 网络架构 (如 UMTS/HSPA等)时, 对无线资源进行管理和控制, 提供与其他网元之间的通信 连接接口; 和 /或,
第二管理模块 204, 用于当数据传输设备应用在长期演进 (Long Term Evolution, LTE ) 网络架构时, 对无线资源进行管理和控制, 提供与其他网元之 间的通信连接接口。
在本实施例中, 第一管理模块 203可以具有无线资源控制功能 (例如 RNC 功能)以及 Iub、 Iu-CS/PS和 Iur接口功能等, 可选地, 还可以具有 GGSN功能; 第二管理模块 204可以具有 SI和 X2接口功能等, 可选地, 还可以具有分组数 据网关 (PDN Gateway, P-GW ) 功能。
可选地, 在本实施例中, 如果第一业务旁路处理模块 201确定 UE向 PDN 发送的上行分组业务数据不需要分流, 第一业务旁路处理模块 201 可以通过本 地预先设置的 Iu-PS接口或者 S1接口将该上行分组业务数据经 IP骨干网和核心 网的 SGSN或者移动性管理实体(mobility management entity, MME ), 传输到 核心网的 GGSN/P-GW上, 由 GGSN/P-GW将该上行分组业务数据传输到 PDN 中。
进一步地, 如图 3所示, 本发明实施例提供的数据传输设备还可以包括: 控制模块 205, 用于对第一业务旁路处理模块 201、 第二业务旁路处理模块 202、 第一管理模块 203和第二管理模块 204的功能设置以及工作状态进行管理 和控制。
在本实施例中, 控制模块 205 可以通过软件控制的形式对第一业务旁路处 理模块 201、第二业务旁路处理模块 202、第一管理模块 203和第二管理模块 204 的功能设置以及工作状态进行管理和控制。 例如: 当本发明实施例提供的数据 传输设备应用在 UMTS/HSPA网络架构时, 控制模块 205可以通过软件控制的 形式启动第一管理模块 203, 并且关闭第二管理模块 204; 又如: 当需要将无线 网络从 UMTS/HSPA升级到 LTE时, 控制模块 205可以通过软件控制的形式关 闭第一管理模块 203, 并且启动第二管理模块 204; 再如: 控制模块 205可以通 过软件控制的形式向数据传输设备添加诸如 Firewall或者 P4P switch等功能。
本发明实施例提供的数据传输设备,在降低业务分流 /注入点位置,缩短 UE 和 PDN之间的数据传输距离的基础上,进一步可以提供 3G和 /或 LTE网络架构 下的无线资源管理和控制, 以及与其他网元之间的通信连接接口等功能; 由于 本发明实施例提供的数据传输设备兼具 3G和 LTE网络架构的无线资源管理和 控制功能,使得本发明实施例提供的技术方案避免了现有技术由于 3G网络包含 RNC设备而 LTE网络没有 RNC设备, 造成网络演进过程中运营商设备投资损 失问题; 由于本发明实施例提供的数据传输设备集成接口功能(如 Iub、 Iu-CS/PS 和 Iur接口, 以及 SI和 X2接口等), 使得无线接入设备在无线接入网中的部署 更灵活, 降低了网络运营和维护成本, 解决了现有技术在 LTE网络架构下由于 演进基站(集成无线接入和接口功能)数量较多, 造成演进基站与其他网元(如 核心网网元, 或者其他演进基站)之间连接复杂, 网络运营和维护成本高的问 题; 由于本发明实施例提供的数据传输设备能够通过控制模块对第一业务旁路 处理模块、 第二业务旁路处理模块、 第一管理模块和第二管理模块的功能设置 以及工作状态进行管理和控制, 使得本发明实施例提供的数据传输设备更适于 网络的平滑演进。
本发明又一实施例还提供一种数据传输设备, 该数据传输设备与如图 2所 示的基本相似, 区别在于:
当无线接入设备仅包括 RRU时, 如图 4所示, 本发明实施例提供的数据传 输设备还可以包括:
基带单元模块 206, 用于通过通用公共无线接口 (Common Public Radio Interface, CPRI ) 与无线接入设备即 RRU通信, 通过该 RRU与 UE通信。
具体地, 基带单元模块 206可以通过 CPRI, 经高带宽承载网 (如光纤网络 等)与 RRU进行通信, 接收 RRU发送的上行分组业务数据, 将该上行分组业 务数据发送给第一业务旁路处理模块 201进行处理; 和 /或, 基带单元模块 206 接收第二业务旁路处理模块 202发送的下行分组业务数据, 通过 CPRI, 经高带 宽承载网(如光纤网络等)将该下行分组业务数据发送给 RRU, 由 RRU将该下 行分组业务数据发送 UE。
本发明实施例提供的数据传输设备,在降低业务分流 /注入点位置,缩短 UE 和 PDN之间的数据传输距离的基础上, 进一步将基带单元(BBU )上移到数据 传输设备中, 使得在数据传输设备内部能够构成基带单元池(BBU Pool ), 增加 了 BBU资源共享, 同时提高了小区边缘增益。
本发明再一实施例还提供一种数据传输设备, 该数据传输设备与如图 3 所 示的基本相似, 区别在于:
当无线接入设备仅包括 RRU时, 如图 5所示, 本发明实施例提供的数据传 输设备还可以包括:
基带单元模块 206, 用于通过 CPRI与无线接入设备即 RRU通信, 通过该 R U与 UE通信。
具体地, 基带单元模块 206通过 CPRI, 经高带宽承载网 (如光纤网络等) 与 RRU进行通信, 接收 R U发送的上行分组业务数据, 将该上行分组业务数 据发送给第一业务旁路处理模块 201、 第一管理模块 203或者第二管理模块 204 等进行处理; 和 /或, 基带单元模块 206接收第二业务旁路处理模块 202、 第一 管理模块 203或者第二管理模块 204等发送的下行分组业务数据, 通过 CPRI, 经高带宽承载网 (如光纤网络等)将该下行分组业务数据发送给 RRU, 由 RRU 将该下行分组业务数据发送 UE。
本发明实施例提供的数据传输设备,在降低业务分流 /注入点位置,缩短 UE 和 PDN之间的数据传输距离的基础上,进一步可以提供 3G和 /或 LTE网络架构 下的无线资源管理和控制, 以及与其他网元之间的通信连接接口等功能; 由于 本发明实施例提供的数据传输设备兼具 3G和 LTE网络架构的无线资源管理和 控制功能,使得本发明实施例提供的技术方案避免了现有技术由于 3G网络包含 RNC设备而 LTE网络没有 RNC设备, 造成网络演进过程中运营商设备投资损 失问题; 由于本发明实施例提供的数据传输设备集成接口功能(如 Iub、 Iu-CS/PS 和 Iur接口, 以及 SI和 X2接口等) 集成, 使得无线接入设备在无线接入网中 的部署更灵活, 降低了网络运营和维护成本, 解决了现有技术在 LTE网络架构 下由于演进基站 (集成无线接入和接口功能)数量较多, 造成演进基站与其他 网元(如核心网网元, 或者其他演进基站)之间连接复杂, 网络运营和维护成 本高的问题; 由于本发明实施例提供的数据传输设备能够通过控制模块对第一 业务旁路处理模块、 第二业务旁路处理模块、 第一管理模块和第二管理模块的 功能设置以及工作状态进行管理和控制, 使得本发明实施例提供的数据传输设 备更适于网络的平滑演进; 由于具有基带单元模块, 使得数据传输设备内部能 够构成基带单元池(BBU Pool ), 增加了 BBU资源共享, 同时提高了小区边缘 增益。
如图 6所示, 本发明实施例还提供一种通信系统, 包括:
数据传输设备 601, 位于 IP城域网络节点上, 用于从无线接入设备 602接 收 UE发送的上行分组业务数据,根据预先设置的业务分流策略确定该上行分组 业务数据需要分流, 将该上行分组业务数据通过本地预先设置的 Gi接口直接分 流到公共数据网 PDN, 和 /或, 用于从 Gi接口直接接收 PDN向 UE发送的下行 分组业务数据, 将该下行分组业务数据发送给无线接入设备 602;
无线接入设备 602, 可以位于无线接入网靠近用户侧节点上, 包括 R U和 BBU, 无线接入设备 602通过 IDX接口, 经高带宽承载网与数据传输设备 601 相连,无线接入设备 602用于接收 UE发送的上行分组业务数据,将该上行分组 业务数据发送给数据传输设备 601, 和 /或, 接收数据传输设备 601发送的下行 分组业务数据, 将该下行分组业务数据发送给 UE。 进一步地, 数据传输设备 601, 还可以用于当应用在 3G网络架构下时, 对 无线资源进行管理和控制, 提供与其他网元之间的通信连接接口, 和 /或, 当应 用在 LTE架构下时, 对无线资源进行管理和控制, 提供与其他网元之间的通信 连接接口。
具体地, 当数据传输设备 601用于对 3G网络架构下的无线资源进行管理和 控制, 提供与其他网元之间的通信连接接口时, 数据传输设备 601 可以具有无 线资源控制功能(例如 RNC功能)以及 Iub、 Iu-CS/PS和 Iur接口功能等, 可选 地, 还可以具有 GGSN功能; 当数据传输设备 601用于对 LTE网络架构下的无 线资源进行管理和控制, 提供与其他网元之间的通信连接接口时, 数据传输设 备 601可以具有 S1和 X2接口功能等, 可选地, 还可以具有 P-GW功能。
可选地, 在本实施例中, 如果数据传输设备 601确定 UE向 PDN发送的上 行分组业务数据不需要分流, 则数据传输设备 601 可以通过本地预先设置的 Iu-PS接口或者 S1接口将该分组业务数据经 IP骨干网和核心网的 SGSN/MME, 传输到核心网的 GGSN/P-GW上, 由 GGSN/P-GW将该上行分组业务数据传输 到 PDN中。
进一步地, 为了提高本实施例提供的通信系统的服务质量, 在本实施例中, 数据传输设备 601还可以具有如 Cache、 P4P Switch以及 Firewall等功能。
进一步地, 为了避免由于数据传输设备 601相对于无线接入设备 602的位 置较高, 导致数据传输设备 601与无线接入设备 602之间传输分组业务数据的 质量可能受网络环境影响较大的问题, 如图 7所示, 数据传输设备 601也可以 设置在无线接入网的 OLT位置上。
本发明实施例提供的通信系统具体实现可以参见本发明实施例提供的数据 传输设备所述, 此处不做赘述。 本发明实施例提供的通信系统, 能够通过位于 IP城域网络节点或者无线接 入网的 OLT位置上的数据传输设备对 UE和 PDN之间传输的分组业务数据进行 分流和注入, 降低了业务分流 /注入点在网络架构中的位置, 缩短了 UE和 PDN 之间的数据传输距离, 节省了无线网络的运营和维护成本, 提高了无线网络的 业务服务质量, 适于如宽带视频业务等要求服务质量较高的业务发展; 数据传 输设备兼具 3G和 LTE网络架构的无线资源管理和控制功能, 使得本发明实施 例提供的技术方案避免了现有技术由于 3G网络包含 RNC设备而 LTE网络没有 RNC设备, 造成网络演进过程中运营商设备投资损失问题; 由于数据传输设备 集成接口功能(如 Iub、 Iu-CS/PS和 Iur接口, 以及 S 1和 X2接口等), 使得无 线接入设备在无线接入网中的部署更灵活, 降低了网络运营和维护成本, 解决 了现有技术在 LTE网络架构下由于演进基站(集成无线接入和接口功能)数量 较多, 造成演进基站与其他网元(如核心网网元, 或者其他演进基站)之间连 接复杂, 网络运营和维护成本高的问题。
如图 8所示, 本发明另一实施例还提供一种通信系统, 包括:
数据传输设备 801, 位于无线接入网的 OLT上, 用于通过基带单元 8011接 收无线远端单元设备 802发送的 UE的上行分组业务数据,根据预先设置的业务 分流策略确定该上行分组业务数据需要分流, 将该上行分组业务数据通过本地 预先设置的 Gi接口直接分流到 PDN, 和 /或, 从 Gi接口直接接收 PDN向 UE 发送的下行分组业务数据, 将该下行分组业务数据通过基带单元 8011发送给无 线远端单元设备 802 , 其中, 基带单元 8011位于数据传输设备 801上;
无线远端单元设备 802, 位于无线接入网靠近用户侧节点上, 通过 CPRI接 口, 经高带宽承载网与数据传输设备 801的基带单元 8011相连, 用于接收 UE 发送的上行分组业务数据, 将该上行分组业务数据发送到数据传输设备 801 的 基带单元 8011, 和 /或, 接收数据传输设备 801的基带单元 8011发送的下行分 组业务数据, 将该下行分组业务数据发送给 UE。
进一步地, 数据传输设备 801, 还可以用于当应用在 3G网络架构下时, 对 无线资源进行管理和控制, 提供与其他网元之间的通信连接接口, 和 /或, 当应 用在长期演进网络架构下时, 对无线资源进行管理和控制, 提供与其他网元之 间的通信连接接口。
具体地, 当数据传输设备 801用于对 3G网络架构下的无线资源进行管理和 控制, 提供与其他网元之间的通信连接接口时, 数据传输设备 801 可以具有无 线资源控制功能(例如 RNC功能)以及 Iub、 Iu-CS/PS和 Iur接口功能等, 可选 地, 还可以具有 GGSN功能; 当数据传输设备 801用于对 LTE网络架构下的无 线资源进行管理和控制, 提供与其他网元之间的通信连接接口时, 数据传输设 备 801可以具有 S1和 X2接口功能等, 可选地, 还可以具有 P-GW功能。
可选地, 在本实施例中, 如果数据传输设备 801确定 UE向 PDN发送的上 行分组业务数据不需要分流, 则数据传输设备 801 可以通过本地预先设置的 Iu-PS接口或者 S1接口将该分组业务数据经 IP骨干网和核心网的 SGSN/MME, 传输到核心网的 GGSN/P-GW上, 由 GGSN/P-GW将该上行分组业务数据传输 到 PDN中。
进一步地, 在本实施例中, 数据传输设备 801 还可以具有如 Cache、 P4P Switch以及 Firewall等功能。
本发明实施例提供的通信系统具体实现可以参见本发明实施例提供的数据 传输设备所述, 此处不做赘述。
本发明实施例提供的通信系统, 能够通过位于无线接入网的光线路终端位 置上的数据传输设备对 UE和 PDN之间传输的分组业务数据进行分流和注入, 降低了业务分流 /注入点在网络架构中的位置,缩短了用户设备和 PDN之间的数 据传输距离, 节省了无线网络的运营和维护成本, 提高了业务服务质量, 适于 如宽带视频业务等要求服务质量较高的业务发展; 由于数据传输设备兼具 3G和 LTE 网络架构的无线资源管理和控制功能, 使得本发明实施例提供的技术方案 避免了现有技术由于 3G网络包含 RNC设备而 LTE网络没有 RNC设备, 造成 网络演进过程中运营商设备投资损失问题; 由于数据传输设备集成了接口功能 (如 Iub、 Iu-CS/PS和 Iur接口, 以及 S1和 X2接口等), 使得无线远端单元设 备在无线接入网中的部署更灵活, 降低了网络运营和维护成本, 解决了现有技 术在 LTE网络架构下由于演进基站 (集成无线接入和接口功能)数量较多, 造 成演进基站与其他网元(如核心网网元, 或者其他演进基站)之间连接复杂, 网络运营和维护成本高的问题; 由于基带单元设置在数据传输设备中, 使得在 数据传输设备内部能够构成基带单元池(BBU Pool ), 增加了 BBU资源共享, 同时提高了小区边缘增益。
如图 9所示, 本发明实施例还提供一种数据传输方法, 包括:
步骤 901, 设置在 IP城域网络节点或者无线接入网的光线路终端位置上的 数据传输设备接收用户设备发送的上行分组业务数据, 根据预先设置的业务分 流策略确定该上行分组业务数据需要分流, 将该上行分组业务数据通过本地预 先设置的 Gi接口直接分流到公共数据网 PDN; 和 /或,
步骤 902,数据传输设备从 Gi接口直接接收 PDN向用户设备发送的下行分 组业务数据, 将该下行分组业务数据发送给该用户设备。
在本实施例中, 业务分流策略的形式可以为多种, 例如: 业务分流策略可 以为需要分流的 APN,如果上行分组业务数据包含的 APN与业务分流策略包含 的需要分流的 APN相同, 则该上行分组业务数据需要分流; 再如: 业务分流策 略可以为需要分流业务的业务类型 (如 Internet业务, 或者视频业务等), 如果 上行分组业务数据包含的业务类型与业务分流策略包含的需要分流的业务类型 相同, 则该上行分组业务数据需要分流。 当然, 在实际的使用过程中还可以将 业务分流策略设置成其他形式, 此处不对每种情况进行——赘述。
本发明实施例提供的数据传输方法不对如图 9所示的步骤具体执行顺序进 行限定, 步骤 901可以在步骤 902之前完成, 也可以在步骤 902之后完成。
可选地, 本发明实施例提供的数据传输方法还可以包括:
如果根据预先设置的业务分流策略确定上行分组业务数据不需要分流, 通 过本地预先设置的 Iu-PS接口或者 S1接口将上行分组业务数据经 IP骨干网和核 心网的 SGSN或者 MME,传输到核心网的 GGSN或者 P-GW上, 由所述 GGSN 或者 P-GW将该上行分组业务数据传输到 PDN中。
可选地, 本发明实施例提供的数据传输方法还可以包括:
在 3G 网络架构下, 数据传输设备通过预先设置的无线资源控制功能和 /或 GGSN功能, 对无线资源进行管理和控制; 和 /或,
在长期演进网络架构下, 数据传输设备通过预先设置的 P-GW功能对无线 资源进行管理和控制。
本发明实施例提供的数据传输方法的具体实现可以参见本发明实施例提供 的数据传输设备以及通信系统的解决方案, 此处不再赘述。
本发明实施例提供的数据传输方法, 通过位于 IP城域网络节点或者无线接 入网的光线路终端位置上的数据传输设备对用户设备和 PDN之间传输的分组业 务数据进行分流和注入, 降低了业务分流 /注入点在网络架构中的位置, 缩短了 用户设备和 PDN之间的数据传输距离, 节省了无线网络的运营和维护成本, 提 高了业务服务质量, 适于如宽带视频业务等要求服务质量较高的业务发展; 并 且, 所述数据传输设备可以提供 3G和 /或 LTE网络架构下的无线资源管理和控 制, 以及与其他网元之间的通信连接接口等功能, 由于兼具 3G和 LTE网络架 构的无线资源管理和控制功能, 使得本发明实施例提供的技术方案避免了现有 技术由于 3G网络包含 RNC设备而 LTE网络没有 RNC设备, 造成网络演进过 程中运营商设备投资损失问题; 由于所述数据传输设备集成接口功能 (如 Iub、 Iu-CS/PS和 Iur接口, 以及 SI和 X2接口等), 使得无线接入设备在无线接入网 中的部署更灵活, 降低了网络运营和维护成本, 解决了现有技术在 LTE网络架 构下由于演进基站 (集成无线接入和接口功能)数量较多, 造成演进基站与其 他网元(如核心网网元, 或者其他演进基站)之间连接复杂, 网络运营和维护 成本高的问题。
为了使本领域技术人员能够更清楚地理解本发明实施例提供的技术方案, 下面以在 UMTS/HSPA架构下, 采用本发明实施例提供的数据传输设备和通信 系统传输 UE和 PDN之间的分组业务数据为例进行说明。
本实施例采用如图 6所示的通信系统, 其中, 无线接入设备嵌入在无线接 入网的 NodeB中。如图 10所示,采用本发明实施例提供的数据传输设备和通信 系统传输 UE和 PDN之间的分组业务数据的方法, 包括:
步骤 1001, UE通过无线接入设备向数据传输设备发起无线网络接入请求, 获取无线网络接入权限。
步骤 1002, UE向核心网的 GGSN发起分组域业务请求, 与 GGSN之间进 行非接入层(Non Access Stratum, NAS )认证, 获取 IP地址。
可选地, 如果数据传输设备具有 GGSN功能, 则在步骤 1002中 UE可以向 数据传输设备发起分组域业务请求, 由该数据传输设备对 UE进行 NAS认证, 并为该 UE分配 IP地址。 当需要进行上行分组业务数据传输时,
步骤 1003, UE将上行分组业务数据发送给无线接入设备。
在本实施例中, 无线接入设备可以包括 RRU和 BBU, UE具体将上行分组 业务数据发送给无线接入设备的 RRU, 再由 RRU传输给 BBU。
步骤 1004, 无线接入设备将 UE的上行分组业务数据通过 IDX接口, 经光 纤网络发送给数据传输设备。
步骤 1005, 数据传输设备根据预先设置的业务分流策略判断所述上行分组 业务数据是否需要分流, 当需要分流时执行步骤 1006, 否则执行步骤 1007。
在本实施例中, 数据传输设备可以从本地预先设置的存储模块中获取业务 分流策略, 也可以从其他网元(如 PCRF )获取业务分流策略; 数据传输设备可 以根据业务分流策略以及用户和业务的不同 APN判断 UE的上行分组业务数据 是否需要分流, 进一步地, 当 APN相同时, 数据传输设备还可以采用深度报文 检测技术(DPI )从所述上行分组业务数据中获取目标业务服务器的 IP地址或 者业务类型等信息, 根据该目标业务服务器的 IP地址或者业务类型等信息以及 业务分流策略判断所述上行分组业务数据是否需要分流。
步骤 1006,数据传输设备通过本地预先设置的 Gi接口直接将 UE的上行分 组业务数据分流到 PDN的业务服务器上, 完成上行分组业务数据传输。
步骤 1007,数据传输设备通过本地预先设置的 Iu-PS接口将 UE的上行分组 业务数据通过 IP骨干网和核心网的 SGSN发送到 GGSN, 由 GGSN将该上行分 组业务数据发送到 PDN的业务服务器上, 完成上行分组业务数据传输。
可选地, 当需要进行下行分组业务数据传输时,
步骤 1008, 数据传输设备通过 Gi接口直接从 PDN接收业务服务器向 UE 发送的下行分组业务数据。 步骤 1009, 数据传输设备将所述下行分组业务数据通过 IDX接口, 经光纤 网络发送给无线接入设备。
步骤 1010,无线接入设备将所述下行分组业务数据发送给 UE, 完成下行分 组业务数据传输。
本发明实施例提供的数据传输设备、 方法以及通信系统, 能够通过位于 IP 城域网络节点上的数据传输设备对用户设备和 PDN之间传输的分组业务数据进 行分流和注入, 降低了业务分流 /注入点在网络架构中的位置, 缩短了用户设备 和 PDN之间的数据传输距离, 节省了无线网络的运营和维护成本, 提高了业务 服务质量, 适于如宽带视频业务等要求服务质量较高的业务发展; 由于无线接 入设备与数据传输设备采用两级架构设置, 无线接入设备在无线接入网中部署 更灵活, 满足无线接入低维护成本和灵活部署的需求。
本发明实施例提供的数据传输设备、 方法以及通信系统, 能够应用在 3G或 者 LTE等无线通信系统中。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤是 可以通过程序来指令相关的硬件完成, 所述的程序可以存储于一计算机可读存 储介质中, 如 ROM/RAM、 磁碟或光盘等。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限于 此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到 变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围应 所述以权利要求的保护范围为准。

Claims

权利要求
1、 一种数据传输设备, 其特征在于, 所述数据传输设备位于 IP城域网络节 点或者无线接入网的光线路终端位置上, 包括:
第一业务旁路处理模块, 用于接收用户设备发送的上行分组业务数据, 根 据预先设置的业务分流策略确定该上行分组业务数据需要分流, 将该上行分组 业务数据通过本地预先设置的 Gi接口直接分流到公共数据网 PDN; 和 /或, 第二业务旁路处理模块, 用于从所述 Gi接口直接接收 PDN向所述用户设 备发送的下行分组业务数据, 将该下行分组业务数据发送给所述用户设备。
2、 根据权利要求 1所述的数据传输设备, 其特征在于, 所述数据传输设备 还包括:
第一管理模块, 用于当所述数据传输设备应用在 3G网络架构下时, 对无线 资源进行管理和控制, 提供与其他网元之间的通信连接接口; 和 /或,
第二管理模块, 用于当所述数据传输设备应用在长期演进网络架构下时, 对无线资源进行管理和控制, 提供与其他网元之间的通信连接接口。
3、 根据权利要求 2所述的数据传输设备, 其特征在于, 所述第一管理模块 具有 Iub、 Iu-CS/PS和 Iur接口功能; 或者,
Iub、 Iu-CS/PS和 Iur接口功能以及网关 GPRS支持节点 GGSN功能。
4、 根据权利要求 2所述的数据传输设备, 其特征在于, 所述第二管理模块 具有 S1和 X2接口功能, 或者, S1和 X2接口功能以及分组数据网关 P-GW功 能。
5、 根据权利要求 2所述的数据传输设备, 其特征在于, 还包括: 控制模块, 用于对所述第一业务旁路处理模块、 第二业务旁路处理模块、 第一管理模块和第二管理模块的功能设置以及工作状态进行管理和控制。
6、 根据权利要求 1所述的数据传输设备, 其特征在于, 还包括: 基带单元模块, 用于通过通用公共无线接口 CPRI与无线远端单元 R U通 信。
7、 一种通信系统, 其特征在于, 包括:
数据传输设备,位于 IP城域网络节点或者无线接入网的光线路终端位置上, 用于从无线接入设备接收用户设备发送的上行分组业务数据, 根据预先设置的 业务分流策略确定该上行分组业务数据需要分流, 将该上行分组业务数据通过 本地预先设置的 Gi接口直接分流到公共数据网 PDN, 和 /或, 用于从所述 Gi接 口直接接收 PDN向所述用户设备发送的下行分组业务数据, 将该下行分组业务 数据发送给所述无线接入设备;
所述无线接入设备, 位于无线接入网节点上, 包括 RRU和基带单元 BBU, 所述无线接入设备通过 IDX接口, 经高带宽承载网与所述数据传输设备相连, 所述无线接入设备用于接收所述用户设备发送的上行分组业务数据, 将该上行 分组业务数据发送给所述数据传输设备, 和 /或, 接收所述数据传输设备发送的 下行分组业务数据, 将该下行分组业务数据发送给所述用户设备。
8、 根据权利要求 7所述的通信系统, 其特征在于, 所述数据传输设备, 还 用于当应用在 3G网络架构下时, 对无线资源进行管理和控制, 提供与其他网元 之间的通信连接接口, 和 /或, 当应用在长期演进网络架构下时, 对无线资源进 行管理和控制, 提供与其他网元之间的通信连接接口。
9、 一种通信系统, 其特征在于, 包括:
数据传输设备, 位于无线接入网的光线路终端位置上, 用于通过基带单元 接收无线远端单元设备发送的用户设备的上行分组业务数据, 根据预先设置的 业务分流策略确定该上行分组业务数据需要分流, 将该上行分组业务数据通过 本地预先设置的 Gi接口直接分流到公共数据网 PDN, 和 /或, 从所述 Gi接口直 接接收 PDN向所述用户设备发送的下行分组业务数据, 将该下行分组业务数据 通过所述基带单元发送给所述无线远端单元设备, 其中, 所述基带单元位于所 述数据传输设备上;
所述无线远端单元设备, 位于无线接入网节点上, 通过 CPRI接口, 经高带 宽承载网与所述数据传输设备的基带单元相连, 用于接收所述用户设备发送的 上行分组业务数据, 将该上行分组业务数据发送到所述数据传输设备的基带单 元, 和 /或, 接收所述数据传输设备的基带单元发送的下行分组业务数据, 将该 下行分组业务数据发送给所述用户设备。
10、 根据权利要求 9所述的通信系统, 其特征在于, 所述数据传输设备, 还用于当应用在 3G网络架构下时, 对无线资源进行管理和控制, 提供与其他网 元之间的通信连接接口, 和 /或, 当应用在长期演进网络架构下时, 对无线资源 进行管理和控制, 提供与其他网元之间的通信连接接口。
11、 一种数据传输方法, 其特征在于, 包括:
设置在 IP城域网络节点或者无线接入网的光线路终端位置上的数据传输设 备接收用户设备发送的上行分组业务数据, 根据预先设置的业务分流策略确定 该上行分组业务数据需要分流, 将该上行分组业务数据通过本地预先设置的 Gi 接口直接分流到公共数据网 PDN; 和 /或,
所述数据传输设备从所述 Gi接口直接接收 PDN向所述用户设备发送的下 行分组业务数据, 将该下行分组业务数据发送给所述用户设备。
12、 根据权利要求 11所述的数据传输方法, 其特征在于, 还包括: 如果根据预先设置的业务分流策略确定所述上行分组业务数据不需要分 流, 通过本地预先设置的 Iu-PS接口或者 S1接口将所述上行分组业务数据经 IP 骨干网和核心网的服务 GPRS 支持节点或者移动性管理实体, 传输到核心网的
GGSN或者 P-GW上, 由所述 GGSN或者 P-GW将所述上行分组业务数据传输 到 PDN中。
13、 根据权利要求 11所述的数据传输方法, 其特征在于, 还包括: 在 3G网络架构下,所述数据传输设备通过预先设置的无线资源控制功能和
/或 GGSN功能, 对无线资源进行管理和控制; 和 /或,
在长期演进网络架构下, 所述数据传输设备通过预先设置的 P-GW功能对 无线资源进行管理和控制。
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