CN103220650B - A kind of method and apparatus of WiFi terminal access different business territory - Google Patents

A kind of method and apparatus of WiFi terminal access different business territory Download PDF

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Publication number
CN103220650B
CN103220650B CN201210015987.5A CN201210015987A CN103220650B CN 103220650 B CN103220650 B CN 103220650B CN 201210015987 A CN201210015987 A CN 201210015987A CN 103220650 B CN103220650 B CN 103220650B
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data service
upstream data
wifi terminal
cpe
carrying
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CN103220650A (en
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孔涛
黄保庆
朱莉
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210015987.5A priority Critical patent/CN103220650B/en
Priority to PCT/CN2012/075854 priority patent/WO2013107138A1/en
Priority to RU2014133529/07A priority patent/RU2572825C1/en
Publication of CN103220650A publication Critical patent/CN103220650A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides the method and apparatus in a kind of WiFi terminal access different business territory, the method is applied to CPE, comprise: if the upstream data service that WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer, upstream data service is encapsulated by CAPWAP tunnel; Be sent to BRAS after the message transmission of the upstream data service encapsulated by CAPWAP tunnel is crossed EPC, the message of upstream data service is sent to corresponding business domains by BRAS; If the upstream data service that WiFi terminal is initiated is the data traffic types carrying out certification and/or charging in application layer, then the 2nd IP address transition of the WiFi terminal of being carried by the message of carrying upstream data service is an IP address of cpe device; The message of the upstream data service carrying an IP address of cpe device is transmitted to corresponding business domains by EPC direct routing.

Description

A kind of method and apparatus of WiFi terminal access different business territory
Technical field
The present invention relates to communication technical field, particularly relate to the method and apparatus of a kind of WiFi terminal access different business stream.
Background technology
Along with LTE (LongTermEvolution, Long Term Evolution), HSPA (HighSpeedPacketAccess, high-speed packet accesses) fast development of technology, industry has occurred adopting HSPA+LTE technology to realize the demand of broadband wireless access, by (LongTermEvolutionAdvanced, the follow-up evolution of LTE technology) CPE (CustomerPremiseEquipment, ustomer premises access equipment) carries out wireless broadband Internet access.WiFi has become the standard configuration of the consumption electronic products such as intelligent machine, notebook, panel computer simultaneously.Relative to LTE terminal, WiFi terminal cost is low and more universal.So in wireless broad band technology field, the technical scheme of LTE+WiFi is adopted then to become a kind of trend.
To be linked in network by LTECPE to need to support several data business to realize WiFi terminal, as Internet, IPTV (InternetPersonalityTelevision, IPTV), IMS (InternetProtocolMultimediaSubsystem network multimedia subsystem) and operator business on one's own account.For service needed such as Internet at IP (InternetProtocol, Internet Protocol) layer carries out the business of certification and/or charging, because LTE/EPC can only perceive LTECPE, can not perceive the WiFi terminal under LTECPE, therefore the LTE/EPC of prior art can not access IP layer carries out the business domains of certification and/or charging in WiFi terminal and carries out certification and/or charging to WiFi terminal.
In order to access IP layer carries out the business domains of certification and/or charging in WiFi terminal, certification and/or charging are carried out to WiFi terminal, prior art proposes a kind of new network architecture, the upstream data service of WiFi terminal flows through CAPWAP tunnel encapsulation through after EPC, access BRAS (BroadbandRemoteAccessServer, Broadband Remote Access Server) networking mode, be then linked into corresponding business domains respectively through BRAS.But adopt this networking mode, upstream data service flows through CAPWAP (ControlAndProvisioningofWirelessAccessPointsProtocolSpec ification, the control of WAP (wireless access point) and configuration) tunnel encapsulation, other business except the business that Internet etc. carries out certification and/or charging at IP layer of giving like this brings very large header overhead, have a strong impact on the efficiency of EPS (EvolvedPacketSystem, Evolved Packet System); And the five-tuple of CAPWAP tunnel is identical, the different upstream data service streams of WiFi terminal will be mapped to identical EPS carrying, make cannot realize flowing to the scheduling of row major level to the different business that WiFi terminal is initiated.
Summary of the invention
Embodiments of the invention provide a kind of WiFi terminal to access the method and apparatus in different business territory, low for solving the EPS efficiency that prior art also exists, and cannot realize the problem different business that WiFi terminal is initiated being flow to the scheduling of row major level simultaneously.
For solving the problems of the technologies described above, embodiments of the invention adopt following technical scheme:
A kind of method being linked into different business territory for WiFi terminal, be applied to ustomer premises access equipment CPE, described CPE is communicated by WiFi mode with described WiFi terminal, described CPE is communicated by Long Term Evolution LTE mode with base station, described base station is connected by multiple business domains that Evolved Packet Core EPC is corresponding respectively with multiple business, by said system framework, make described WiFi terminal by described CPE, described base station, described EPC communicates with described business domains, wherein, described method comprises:
Undertaken communicating and setting up CAPWAP tunnel by described EPC and Broadband Remote Access Server BRAS in the IP address that described CPE distributes according to described EPC, the message that the WiFi terminal encapsulated by CAPWAP tunnel and described business domains of carrying out certification and/or charging at IP layer carry out communicating is sent to BRAS, and is that described WiFi terminal distributes a 2nd IP address by described WiFi terminal and the described described BRAS that makes alternately carrying out the business domains of certification and/or charging at IP layer;
Determine the data traffic types of the upstream data service that described WiFi terminal is initiated;
If the upstream data service that described WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer, described upstream data service is encapsulated by described CAPWAP tunnel; Be sent to BRAS after the message transmission of the upstream data service encapsulated by CAPWAP tunnel is crossed described EPC, the message of described upstream data service is sent to corresponding business domains by described BRAS;
If the upstream data service that WiFi terminal is initiated is the data traffic types carrying out certification and/or charging in application layer, then the described 2nd IP address transition of the described WiFi terminal of being carried by the message of the described upstream data service of carrying is a described IP address of described cpe device; The described message carrying the described upstream data service of an IP address of described cpe device is transmitted to corresponding business domains by described EPC direct routing.
A kind of device being linked into different business territory for WiFi terminal, it is characterized in that, described CPE is communicated by WiFi mode with described WiFi terminal, described CPE is communicated by Long Term Evolution LTE mode with base station, and described base station is connected, by said system framework by multiple business domains that Evolved Packet Core EPC is corresponding respectively with multiple business, make described WiFi terminal by described CPE, described base station, described EPC communicates with described business domains, and described CPE comprises:
Unit is set up in tunnel, an IP address for distributing according to described EPC is communicated with Broadband Remote Access Server BRAS by described EPC, set up CAPWAP tunnel, the message that the WiFi terminal encapsulated by CAPWAP tunnel and described business domains of carrying out certification and/or charging at IP layer carry out communicating is sent to BRAS, and is that described WiFi terminal distributes a 2nd IP address by described WiFi terminal and the described described BRAS that makes alternately carrying out the business domains of certification and/or charging at IP layer;
Determining unit, for determining the data traffic types of the upstream data service that described WiFi terminal is initiated;
IP layer service processing unit, if determine that the upstream data service that described WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer for described determining unit, is encapsulated described upstream data service by described CAPWAP tunnel;
Application layer Service Processing Unit, if the upstream data service of initiating for described determining unit determination WiFi terminal is the data traffic types carrying out certification and/or charging in application layer, then the described 2nd IP address transition of the described WiFi terminal of being carried by the message of the described upstream data service of carrying is a described IP address of described cpe device;
Transmitting element, after the message transmission of the described upstream data service encapsulated by CAPWAP tunnel is crossed described EPC, be sent to BRAS, the message of described upstream data service is sent to corresponding business domains by described BRAS; Or
For the described message carrying the described upstream data service of an IP address of described cpe device is transmitted to corresponding business domains by described EPC direct routing.
The method and apparatus in the WiFi terminal access different business territory that the embodiment of the present invention provides, the different pieces of information business that ustomer premises access equipment is initiated according to WiFi end carries out Intelligent routing, as to the business of carrying out certification and/or charging at IP layer, carried out encapsulating after rear transparent transmission crosses described EPC by the message carrying described upstream data service by described CAPWAP tunnel and be sent to BRAS, the message of described upstream data service is sent to corresponding business domains by BRAS; For the business in application layer authentication and/or charging, the described 2nd IP address transition of the described WiFi terminal of then being carried by the message of the described upstream data service of carrying is a described IP address of described cpe device, corresponding business domains is transmitted to by described EPC direct routing, the business domains of certification and/or charging is carried out in such WiFi terminal access in application layer, do not need to pass through BRAS, message between WiFi terminal and business domains does not need CAPWAP tunnel to encapsulate yet, the header overhead of message can not be increased, thus the transmission efficiency of EPS can be improved; Simultaneously by carrying out Intelligent routing to dissimilar business domains, as different in the five-tuple for the dissimilar business domains of carrying out certification and/or charging at IP layer or application layer, make CPE the different pieces of information business of WiFi terminal can be mapped to different EPS carryings, achieve the priority scheduling between different business stream.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The method flow diagram in a kind of WiFi terminal access different business territory that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is that WiFi terminal is linked into the network system schematic diagram in different business territory by EPS;
Fig. 3 is the schematic flow sheet that WiFi terminal request BRAS distributes the 2nd IP address;
The method flow diagram in the another kind of WiFi terminal access different business territory that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 for the embodiment of the present invention provide a kind of for WiFi terminal access different business and apparatus structure block diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
Embodiments provide the method and apparatus in a kind of WiFi terminal access different business territory, the method is applied to ustomer premises access equipment CPE, as Fig. 1, 2, shown in 3, Fig. 2 is the present embodiment based on network system, wherein WiFi terminal is attached to WLAN by AP and is communicated by WiFi mode with described CPE, described CPE is communicated by LTE mode with described base station, described base station is connected by multiple business domains that EPC is corresponding respectively with multiple business, like this by said system framework, make described WiFi terminal by described CPE, described base station, described and described business domains communicates.Give two kinds of set-up modes of AP (AccessPoint, WiFi WAP (wireless access point)) and ustomer premises access equipment CPE in figure, CPE can integrated AP functional module, if the CPE/AP in Fig. 1, AP with CPE also can be two equipment be separated.This device that wherein the present embodiment provides is the function that CPE is integrated with AP.
In order to application system can access independent counting after Internet to WiFi terminal, WiFi terminal is linked into Internet by EPS network system to be needed through BRAS, and such BRAS reports authentication and accounting server to carry out authentication and accounting to the Internet data service record that WiFi terminal is accessed.It is by AC (AccessController that this CPE and BRAS carries out communication, WiFi access controller) adopt EPC to be the IP address that this CPE distributes, carried out the message communicated by CAPWAP tunnel and described BRAS between this CPE and AC, then described AC is linked into BRAS, and certain AC and BRAS also can be the physical equipment integrated.Wherein an IP address be CPE after the power-up, CPE completes the certification of EPC to CPE according to the normal process of 3GPP, and sets up after PDN is connected with EPC, and EPC is the IP address that CPE distributes.
BRAS is this WiFi terminal distribution the 2nd IP address by the system architecture of above-mentioned Fig. 1, specifically as shown in Figure 3, for convenience of explanation, is divided into by BRAS AC and BRAS to be divided into two functional modules to illustrate in this process.For WiFi terminal distribution the 2nd IP address process is as follows:
First WiFi terminal sends DHCPDiscovery (DynamicHostConfigurationProtocol, DynamicHost arranges protocol discovery) broadcasting packet to CPE; After CPE receives DHCPDiscovery broadcasting packet, this message is encapsulated by CAPWAP tunnel, sends to CPE.It is the IP address that CPE distributes that the message repeating encapsulated by CAPWAP is employed EPC to AC, CPE by CPE in this message.AC carries out CAPWAP tunnel decapsulation to the message received, and is then transmitted to BRAS.BRAS, after the DHCPDiscovery broadcasting packet receiving WiFi terminal transmission, returns DHCPOFFER to AC.AC is corresponding again carries out CAPWAP tunnel encapsulation to DHCPOFFER message, sends to CPE, and CPE sends to WiFi terminal after carrying out decapsulation to the DHCPOFFER message encapsulated through CAPWAP tunnel.WiFi terminal, after receiving the DHCPOFFER message that BRAS sends, sends DHCPRequest broadcasting packet to BRAS, and concrete process with aforementioned to send DHCPDiscovery process to BRAS identical, thus makes BRAS to WiFi terminal distribution the 2nd IP address.
Wherein the data service of WiFi terminal support comprises: carry out the business of charging at IP layer and carry out the business of certification in application layer, as HSI (HighSpeedInternet) business carries out charging at IP layer, operator's game on one's own account, IMS business and IPTV service are in application layer charging.The method comprises:
S101, receive described WiFi terminal send upstream data service message, described upstream data service message carries the 2nd IP address that Broadband Remote Access Server BRAS distributes to described WiFi terminal.
S102, determine the data traffic types of the upstream data service that described WiFi terminal is initiated.
CPE can determine the data traffic types of the upstream data service that described WiFi terminal is initiated after receiving the upstream data service message of WiFi terminal transmission according to the five-tuple information of described upstream data service message.The five-tuple information of upstream data service message can be that CPE is pre-configured, or obtained by the dynamic derivation of the UL-TFT (UplinkTrafficFloWTemplate, upstream data service flow template) of CPE.
After the upstream data service message determining the initiation of described WiFi terminal, if the upstream data service that described WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer, perform S103 step; If the upstream data service that WiFi terminal is initiated is the data traffic types carrying out certification and/or charging in application layer, then perform S104 step.
S103, described upstream data service to be encapsulated by described CAPWAP tunnel; Be sent to BRAS after the message transmission of the upstream data service encapsulated by CAPWAP tunnel is crossed described EPC, the message of described upstream data service is sent to corresponding business domains by described BRAS.
If the upstream data service that WiFi terminal is initiated carries out certification and/or charging at IP layer, after the upstream data service that WiFi terminal sends by CPE is encapsulated by CAPWAP tunnel, CPE sends to AC (to refer to that EPC does not process message after the message transmission carrying described upstream data service is crossed described EPC, EPC is relative to message being " transparent "), AC accesses BRAS and the message of described upstream data service sent to corresponding business.Application system can be made like this can to carry out certification and/or charging to WiFi terminal separately.
S104, be the described IP address of described cpe device by the described 2nd IP address transition of described WiFi terminal that the message of the described upstream data service of carrying carries; The described message carrying the described upstream data service of an IP address of described cpe device is transmitted to corresponding business domains by described EPC direct routing.
If the upstream data service that WiFi terminal is initiated carries out certification and/or charging in application layer, one IP address of CPE to be described EPC by the described 2nd IP address transition of described WiFi terminal that the message of the described upstream data service of carrying carries be described CPE module assignment, then CPE module will carry upstream data service and pass through EPC routing forwarding to corresponding business.
The method in the WiFi terminal access different business territory that the embodiment of the present invention provides, the different pieces of information business that CPE initiates according to WiFi end carries out Intelligent routing, as to the business of carrying out certification and/or charging at IP layer, carried out encapsulating after rear transparent transmission crosses described EPC by the message carrying described upstream data service by described CAPWAP tunnel and be sent to BRAS, the message of described upstream data service is sent to corresponding business domains by BRAS; For the business in application layer authentication and/or charging, the described 2nd IP address transition of the described WiFi terminal of then being carried by the message of the described upstream data service of carrying is a described IP address of described cpe device, corresponding business domains is transmitted to by described EPC direct routing, the business domains of certification and/or charging is carried out in such WiFi terminal access in application layer, do not need to pass through BRAS, message between such WiFi terminal and business domains does not need CAPWAP tunnel to encapsulate, the header overhead of message can not be increased, thus the transmission efficiency of EPS can be improved; CPE is by carrying out Intelligent routing to dissimilar business domains simultaneously, as different in the five-tuple for the dissimilar business domains of carrying out certification and/or charging at IP layer or application layer, make CPE the different pieces of information business of WiFi terminal can be mapped to different EPS carryings, achieve the priority scheduling between different business stream.
Embodiment two
Embodiments provide the method and apparatus in a kind of WiFi terminal access different business territory, the method is applied to LTE ustomer premises access equipment CPE, as Fig. 2, 3, shown in 4, Fig. 2 is the present embodiment based on network system, wherein WiFi terminal is attached to WLAN by AP and is communicated by WiFi mode with described CPE, described CPE is communicated by LTE mode with described base station, described base station is connected by multiple business domains that EPC is corresponding respectively with multiple business, like this by said system framework, make described WiFi terminal by described CPE, described base station, described and described business domains communicates.Give two kinds of set-up modes of AP (AccessPoint, WiFi WAP (wireless access point)) and ustomer premises access equipment CPE in figure, CPE can integrated AP functional module, if the CPE in Fig. 2, AP with CPE also can be two equipment be separated.This device that wherein the present embodiment provides is the function that CPE is integrated with AP.
In order to application system can access independent counting after Internet to WiFi terminal, WiFi terminal is linked into Internet by EPS network system to be needed through BRAS, and such BRAS reports authentication and accounting server to carry out authentication and accounting to the Internet data service record that WiFi terminal is accessed.It is by AC (AccessController that this CPE and BRAS carries out communication, WiFi access controller) adopt EPC to be the IP address that this CPE distributes, by the laggard Serial Communication of CAPWAP tunnel between this CPE and AC, then described AC is linked into BRAS, certain the present embodiment be based on AC and BRAS be integrate as BRAS physical equipment.Wherein an IP address be CPE/AP after the power-up, CPE/AP completes the certification of EPC to CPE/AP and the foundation of PDN according to the normal process of 3GPP, EPC be CPE/AP distribute IP address.
BRAS is this WiFi terminal distribution the 2nd IP address by the system architecture of above-mentioned Fig. 2, specifically as shown in Figure 3, for convenience of explanation, is divided into by BRAS AC and BRAS to be divided into two functional modules to illustrate in this process.For WiFi terminal distribution the 2nd IP address process is as follows:
First WiFi terminal sends DHCPDiscovery (DynamicHostConfigurationProtocol, DynamicHost arranges protocol discovery) broadcasting packet to CPE; After CPE receives DHCPDiscovery broadcasting packet, this message is encapsulated by CAPWAP tunnel, sends to CPE.It is the IP address that CPE distributes that the message repeating encapsulated by CAPWAP is employed EPC to AC, CPE by CPE in this message.AC carries out CAPWAP tunnel decapsulation to the message received, and is then transmitted to BRAS.BRAS, after the DHCPDiscovery broadcasting packet receiving WiFi terminal transmission, returns DHCPOFFER to AC.AC is corresponding again carries out CAPWAP tunnel encapsulation to DHCPOFFER message, sends to CPE, and CPE sends to WiFi terminal after carrying out decapsulation to the DHCPOFFER message encapsulated through CAPWAP tunnel.WiFi terminal, after receiving the DHCPOFFER message that BRAS sends, sends DHCPRequest broadcasting packet to BRAS, and concrete process with aforementioned to send DHCPDiscovery process to BRAS identical, thus makes BRAS to WiFi terminal distribution the 2nd IP address.
Wherein the data service of WiFi terminal support comprises: carry out the business of charging at IP layer and carry out the business of certification in application layer, as HSI (HighSpeedInternet) business carries out charging at IP layer, operator's game on one's own account, IMS business and IPTV service are in application layer charging.The method comprises:
The Access Control List (ACL) of the pre-configured upstream data service of S201, CPE, or the Access Control List (ACL) dynamically deriving from upstream data service.
The Access Control List (ACL) of upstream data service specifically comprises the five-tuple information of upstream data service, and described five-tuple information includes the source address of the terminal initiating upstream data service, the business domains destination address that access, the source port of initiating upstream data service, the destination interface access service territory and protocol number.
The Access Control List (ACL) of upstream data service can be arranged by pre-planning, and be configured in several ways in CPE, comprise: the near-end configuration interface of CPE, far-end configuration interface TR069/OMA-DM, DHCPOption of CPE, ProtocolConfigurationOption (PCO) expansion or CAPWAP remote management protocol.The Access Control List (ACL) of upstream data service also can be that the UL-TFT of CPE dynamically derives from, and concrete derivation mode replaces source IP address and source port for adopting asterisk wildcard (*), retains object IP address, protocol number and destination interface constant.Five-tuple information in the Access Control List (ACL) of certainly pre-configured upstream data service, also can use asterisk wildcard (*) to replace source address and source port, only pre-configured destination address, protocol number and destination interface.
Further, the Access Control List (ACL) of the upstream data service in CPE, can also be used for classifying to different upstream data service and Identity Priority level information.
S202, CPE receive the upstream data service message that described WiFi terminal sends, and described upstream data service message carries the 2nd IP address that Broadband Remote Access Server BRAS distributes to described WiFi terminal.
S203, CPE determine the type of the upstream data service that described WiFi terminal is initiated according to the described destination address in the five-tuple information of described upstream data service.
After determining the type of the upstream data service that described WiFi terminal is initiated, if the upstream data service that described WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer, then perform S204 step; If the upstream data service that WiFi terminal is initiated is the data traffic types carrying out certification and/or charging in application layer, then perform S205 step.
Destination address information in the Access Control List (ACL) of upstream data service can determine the type of the data service of the business domains that described WiFi terminal will be accessed.The data service that WiFi terminal can be supported comprises to be had: IMS, IPTV and HSI, operator's self-operated business etc., but is not limited thereto.Usual operator has planned the destination address section in different business territory, like this according to the destination address of the data service of WiFi terminal initiation, the destination address section of each data service in the Access Control List (ACL) of upstream data service, then can determine the business domains type that WiFi terminal will be accessed.Such as, the destination address of IMS business domains is 192.168.0.0-192.168.255.255, if the destination address of the data service that described WiFi terminal will be accessed is 192.168.50.23, so then can determine that the data service that described WiFi terminal will be accessed is IMS business domains.For the Business Stream do not matched in described Access Control List (ACL), be defaulted as HSI business.The data service that WiFi terminal can be supported comprises HSI, IMS, IPTV and operator's self-operated business etc.
Further, after determining the type of the upstream data service that described WiFi terminal is initiated, CPE can also determine the precedence information of the upstream data service that described WiFi terminal is initiated according to the precedence information of pre-configured upstream data service.
Described upstream data service is encapsulated by described CAPWAP tunnel by S204, CPE.
CPE parses the destination address of the business domains will accessed in the upstream data service message of WiFi terminal initiation.If the destination address of the data service that described WiFi terminal will be accessed is 1.10.2.3, the data service that the Access Control List (ACL) determination WiFi terminal of the corresponding upstream data service of such CPE will be accessed is HSI business.Described upstream data service is encapsulated by CAPWAP tunnel by such CPE.
The described 2nd IP address transition of the described WiFi terminal that the message of the described upstream data service of carrying carries by S205, CPE is a described IP address of described cpe device.
If the destination address of the data service that described WiFi terminal will be accessed is 192.168.50.23, such CPE then determines that the data service that WiFi terminal will be accessed is IMS business.Because IMS business carries out charging in application layer, the 2nd IP address transition of the described WiFi terminal of carrying in this upstream data service message is an IP address of CPE self by such CPE.
If establish many PDN between CPE and EPC to connect, then the 2nd IP address transition of the described WiFi terminal of carrying in this upstream data service message is the IP address that corresponding PDN connects by CPE.
The upstream data service that S206, CPE initiate according to described WiFi terminal or the type of upstream data service and the precedence information of described upstream data service, carry out priority scheduling to the upstream data service that described WiFi terminal is initiated.
Further, in order to better process multiple upstream data service, CPE further comprises the precedence information of upstream data service in described Access Control List (ACL), such CPE provides different priority schedulings according to the corresponding different precedence information of different data traffic types to different upstream data services, concrete can adopt WFQ (WeightedFairQueuing, Weighted Fair Queuing) congestion management algorithm.
The upstream data service that described WiFi terminal is initiated by S207, CPE is mapped to corresponding carrying according to the QoS mechanism of EPS.
The upstream data service of described WiFi terminal being initiated at CPE is mapped to corresponding carrying according to the QoS mechanism of EPS after, if the upstream data service that described WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer, then perform S208 step; If the upstream data service that WiFi terminal is initiated is the data traffic types carrying out certification and/or charging in application layer, then perform S209 step.
Such as, after CPE powers on, EPC completes certification to CPE according to 3GPP normal process, and sets up PDN connection.This PDN connects corresponding default EPS carrying and has the special EPS carrying of permanent online demand.
CPE sets up CAPWAP control channel and data channel according to CAPWAP standard and AC simultaneously, is carried on EPS dedicated bearer corresponding to CPE respectively, as the carrying of CAPWAP control channel can on EPS dedicated bearer and default bearer.
If the upstream data service that WiFi terminal is initiated like this carries out certification and/or charging at IP layer, the message of described upstream data service is carried out CAPWAP encapsulation by such CPE.Then CPE is mapped on corresponding EPS dedicated bearer according to the message of the described upstream data service of QoS mechanism of EPS.
If the upstream data service that WiFi terminal is initiated carries out certification and/or charging in application layer, the upstream data service of initiating due to WiFi terminal is not linked into corresponding business domains by BRAS, and CPE is then mapped to corresponding carrying according to the QoS mechanism of EPS.As IMS business, this IMS signaling flow is mapped in the Non-GBR carrying of QCI=5 by CPE, and IMS media voice flow is mapped to the special GBR carrying of QCI=1, and IMS media video stream can be mapped in the special GBR carrying of QCI=2.Upstream data services different is like this mapped in different carryings, thus EPS can provide different QoS to different upstream data services.
Certainly, above-mentioned carrying maps just for the situation setting up a PDN between CPE and EPC, if when setting up multiple PDN between CPE and EPC, is that CPE is assigned multiple IP address for each PDN, EPC.Such as, set up between CPE and EPC and have 3 PDN to connect, such EPC can be assigned 3 IP addresses for CPE.Such CPE is after the upstream data service message receiving WiFi terminal initiation, according to the type of this upstream data service, type as this upstream data service is the IMS business of carrying out charging in application layer, and such CPE Article 1 PDN that has been IMS service selection connects.Accordingly, the 2nd IP address transition of the described WiFi terminal of carrying in this upstream data service message is the IP address of the Article 1 PDN of CPE by CPE.Then in Article 1 PDN connection, accordingly mapping is carried according to the QoS mechanism of EPS to this upstream data service.
S208, CPE are sent to BRAS after the message transmission of the upstream data service encapsulated by CAPWAP tunnel is crossed described EPC, and the message of described upstream data service is sent to corresponding business domains by described BRAS.
After the upstream data service of initiating WiFi terminal carries out carrying mapping, the upstream data service message encapsulated by CAPWAP tunnel is sent to AC by EPC by CPE.AC carries out CAPWAP tunnel decapsulation to this upstream data service message, is then sent to BRAS and is linked into Internet business.BRAS carries out charging to the Business Stream that WiFi terminal is accessed simultaneously.
The described message carrying the described upstream data service of an IP address of described cpe device is transmitted to corresponding business domains by described EPC direct routing by S209, CPE.
After the upstream data service of initiating WiFi terminal carries out carrying mapping, the data service that WiFi terminal is initiated is sent to EPC by CPE, is finally linked into IMS domain.
Because the data service carrying out charging in application layer does not need to be linked into corresponding business domains by BRAS by CPE, the data service initiated for WiFi terminal so does not need to carry out CAPWAP tunnel encapsulation, the data service of charging is carried out as business such as IMS, VoIP like this in application layer, to the expense of this data service message be greatly reduced, improve the transmission efficiency of EPS; And due to CPE/AP be an IP address of CPE by the 2nd IP address transition of WiFi terminal, make EPC can perceive the data service of WiFi terminal initiation, thus can make WiFi terminal that the EPS in EPS can be utilized to carry mapping mechanism, thus the priority scheduling of different business can be realized.
Further, if AP with CPE is two equipment be separated, the upstream data service that AP and CPE completes jointly by WiFi terminal is initiated is linked into different business domains.Such as, Ethernet interface can be adopted between AP and CPE to connect, and CPE can distribute private network IP address by DHCP message to AP.In this form, the Access Control List (ACL) of upstream data service can be configured in AP by the local management interface of the remote management protocol such as CAPWAP or AP.AP can determine the type of service of the upstream data service that WiFi terminal is initiated after receiving the upstream data service message of WiFi terminal transmission according to the Access Control List (ACL) of this upstream data service.
If the upstream data service that WiFi terminal is initiated is the data service carrying out charging in application layer, the type of service of the upstream data service that the upstream data service message and WiFi terminal that carry the 2nd IP address of WiFi terminal are initiated by AP is packaged into message by Ethernet interface and sends to CPE, and the source IP address of this message is the private network IP address that CPE distributes to AP.CPE is after receiving this message, first the 2nd IP address transition of the WiFi terminal of carrying in upstream data service message is become an IP address of CPE, the IP the address simultaneously private network IP address of the AP in this message being converted to CPE is sent to corresponding business domains by EPC.
If the upstream data service that WiFi terminal is initiated is the data service carrying out charging at IP layer, the type of service of the upstream data service that the upstream data service message carrying the 2nd IP address of WiFi terminal this WiFi terminal initiated and this WiFi terminal are initiated is packaged into CAPWAP message by CAPWAP tunnel and sends to CPE, and the outer source IP address of this CAPWAP message is the private net address that CPE distributes to AP.The outer source IP address of CAPWAP, after receiving CAPWAP message, is converted to an IP address of CPE, is sent to AC after then this message transmission being crossed EPC by CPE.AC carries out decapsulation to this CAPWAP message, is then transmitted to BRAS.
2nd IP address transition of the WiFi terminal of carrying in the upstream data service message of application layer charging WiFi terminal initiated due to CPE is an IP address of CPE, the data service that this WiFi terminal is initiated, according to an IP address of the CPE in this upstream data service message, can be mapped in corresponding EPS carrying by such CPE; And for carrying out the data service of charging at IP layer, the data service message that the WiFi terminal due to CAPWAP encapsulation is initiated carries the 2nd IP address of WiFi terminal, the data service that this WiFi terminal is initiated is mapped in another carrying by such CPE.Thus priority scheduling between the upstream of different business and downstream can be achieved in EPS carrying aspect, ensure that different QoS (QualityofSystem, the service quality) grade between different upstream data service stream.
Further, in order to solve the problem to the independent certification of WiFi terminal and/or charging in prior art, WiFi terminal must be linked into be needed to pass through BRAS when application layer carries out the business of charging, thus the problem that dynamic PCC (PolicyControlandCharging, policy control and charging) strategy and static qos policy are disposed cannot be supported.And in the present embodiment, WiFi terminal access is carried out to the business of charging in application layer, as IMS business, the 2nd IP address transition in the upstream data service message that WiFi terminal is initiated by CPE is an IP address of CPE, and such EPC side can perception.When IMS is by PCRF (PolicyandChargingRulesFunction, policy charging rule function) to P-GW (PacketDataNetworkGateway, grouped data network gateway) trigger special EPS carrying when setting up, P-GW just can be associated with the EPS carrying of CPE, thus can support that dynamic PCC strategy and static qos policy are disposed.
Further, in this enforcement by BRAS to WiFi terminal distributing IP address, WiFi terminal is linked into the business domains in the certification of IP layer and/or charging by BRAS, can realize application system and carry out charging to WiFi terminal separately; WiFi terminal is linked into the business domains of application layer charging by EPC simultaneously, by business domains to the charging of WiFi terminal in application layer, like this thus achieve application system independent charging is carried out to the different business that WiFi terminal is accessed, thus avoid WiFi terminal when being linked into all different business territories by BRAS, BRAS also must deduct the expense of the business in application layer also charging after carrying out charging to all business.And then the difficulty reducing the realization of BRAS and AAA (Authentication, Authorization, Accounting, authentication, mandate and statistics) server and dispose.
Further, the cpe device that the embodiment of the present invention provides not only can be comprised LTE interface unit and be communicated by Long Term Evolution LTE mode with base station, LTE-A (the follow-up evolution of LTE-Advanced, LTE technology) interface unit can also be comprised communicated by Long Term Evolution LTE-A mode with base station.
The method in a kind of WiFi terminal access different business territory that the embodiment of the present invention provides, the different pieces of information business that ustomer premises access equipment is initiated according to WiFi end carries out Intelligent routing, as to the business of carrying out certification and/or charging at IP layer, carried out encapsulating after rear transparent transmission crosses described EPC by the message carrying described upstream data service by described CAPWAP tunnel and send BRAS, the message of described upstream data service is sent to corresponding business domains by BRAS; For the business in application layer authentication and/or charging, the described 2nd IP address transition of the described WiFi terminal of then being carried by the message of the described upstream data service of carrying is a described IP address of described cpe device, is transmitted to corresponding business domains by described EPC direct routing.The business domains of certification and/or charging is carried out in such WiFi terminal access in application layer, do not need to pass through BRAS, message between such WiFi terminal and business domains does not need CAPWAP tunnel to encapsulate, and can not increase the header overhead of message, thus can improve the transmission efficiency of EPS; Simultaneously by carrying out Intelligent routing to dissimilar business domains, as different in the five-tuple for the dissimilar business domains of carrying out certification and/or charging at IP layer or application layer, make CPE the different pieces of information business of WiFi terminal can be mapped to different EPS carryings, achieve the priority scheduling between different business stream; Further, can reduce the difficulty that BRAS and AAA realizes and dispose, the upstream data service support dynamic PCC strategy that simultaneously WiFi terminal can be made to initiate and static qos policy are disposed.
Embodiment three
Embodiments provide a kind of device 40 for WiFi terminal access different business territory, as shown in Fig. 2,3,5, Fig. 2 is the present embodiment based on network system, wherein WiFi terminal is attached to WLAN by AP and is communicated by WiFi mode with described CPE, undertaken communicating by LTE mode in described CPE and described base station, described base station is connected by multiple business domains that EPC is corresponding respectively with multiple business, like this by said system framework, make described WiFi terminal by described CPE, described base station, described and described business domains communicates.Give two kinds of set-up modes of AP (AccessPoint, WiFi WAP (wireless access point)) and ustomer premises access equipment CPE in figure, CPE can integrated AP functional module, if the CPE in Fig. 2, AP with CPE also can be two equipment be separated.This device 40 that wherein the present embodiment provides is functions that CPE is integrated with AP.
Wherein in order to application system can access independent counting after Internet to WiFi terminal, WiFi terminal is linked into Internet by EPS network system to be needed through BRAS, and such BRAS reports authentication and accounting server to carry out authentication and accounting to the Internet data service record that WiFi terminal is accessed.It is by AC (AccessController that this CPE and BRAS carries out communication, WiFi access controller) adopt EPC to be the IP address that this CPE distributes, carried out the message communicated by CAPWAP tunnel and described BRAS between this CPE and AC, then described AC is linked into BRAS, and certain AC and BRAS also can be the physical equipment integrated.Wherein an IP address be CPE after the power-up, CPE completes the certification of EPC to CPE and the foundation of PDN according to the normal process of 3GPP, EPC be CPE distribute IP address.
BRAS is this WiFi terminal distribution the 2nd IP address by the system architecture of above-mentioned Fig. 2, specifically as shown in Figure 3, for convenience of explanation, in this process, AC and BRAS is as two independently equipment, in implementation procedure, AC and BRAS can be a physical equipment, achieves the function of independently AC and BRAS equipment simultaneously.For WiFi terminal distribution the 2nd IP address process is as follows:
First WiFi terminal sends DHCPDiscovery (DynamicHostConfigurationProtocol, DynamicHost arranges protocol discovery) broadcasting packet to CPE; After CPE receives DHCPDiscovery broadcasting packet, this message is encapsulated by CAPWAP tunnel, sends to CPE.It is the IP address that CPE distributes that the message repeating encapsulated by CAPWAP is employed EPC to AC, CPE by CPE in this message.AC carries out CAPWAP tunnel decapsulation to the message received, and is then transmitted to BRAS.BRAS, after the DHCPDiscovery broadcasting packet receiving WiFi terminal transmission, returns DHCPOFFER to AC.AC is corresponding again carries out CAPWAP tunnel encapsulation to DHCPOFFER message, sends to CPE, and CPE sends to WiFi terminal after carrying out decapsulation to the DHCPOFFER message encapsulated through CAPWAP tunnel.WiFi terminal, after receiving the DHCPOFFER message that BRAS sends, sends DHCPRequest broadcasting packet to BRAS, and concrete process with aforementioned to send DHCPDiscovery process to BRAS identical, thus makes BRAS to WiFi terminal distribution the 2nd IP address.
Wherein the data service of WiFi terminal support comprises: carry out the business of charging at IP layer and carry out the business of certification in application layer, as HSI (HighSpeedInternet) business carries out charging at IP layer, operator's game on one's own account, IMS business and IPTV service are in application layer charging.Wherein the present embodiment is be integrated into same equipment CPE/AP for AP and CPE to be described for this device.This CPE comprises: unit 42, determining unit 43, IP layer service processing unit 44, application layer Service Processing Unit 45, processed unit 46, carrying map unit 47 and transmitting element 48 are set up in acquiring unit 41, tunnel.
Described acquiring unit 41, for the Access Control List (ACL) of pre-configured upstream data service; Or for dynamically deriving from the Access Control List (ACL) of upstream data service; The Access Control List (ACL) of described upstream data service comprises the five-tuple information of upstream data service, and described five-tuple information comprises the source address of described upstream data service, destination address, source port, destination interface and protocol number.
The Access Control List (ACL) of the upstream data service that acquiring unit 41 obtains includes the five-tuple information of upstream data service, and described five-tuple information includes the source address of the terminal initiating upstream data service, the business domains destination address that access, the source port of initiating upstream data service, the destination interface access service territory and protocol number.
The Access Control List (ACL) of upstream data service can be arranged by pre-planning, and be configured in CPE by kinds of schemes, comprise: the near-end configuration interface of CPE, the far-end configuration interface TR069/OMA-DM of CPE, DHCPOption, ProtocolConfigurationOption (PCO) expands, CAPWAP remote management protocol.
The Access Control List (ACL) of upstream data service also can be that the UL-TFT of CPE dynamically derives from, and concrete derivation mode, for replace source IP address and source port with asterisk wildcard (*), retains object IP address, protocol number and destination interface constant.Five-tuple information in the Access Control List (ACL) of the upstream data service that certain Access Control List (ACL) acquiring unit 41 is pre-configured, also can use asterisk wildcard (*) to replace source address and source port, a configuration purpose address, protocol number and destination interface.
Further, during the five-tuple information of acquiring unit 41 in the Access Control List (ACL) of pre-configured upstream data service, the precedence information of different business can also be configured.
Unit 42 is set up in described tunnel, an IP address for distributing according to described EPC is communicated with Broadband Remote Access Server BRAS by described EPC, set up CAPWAP tunnel, the message that the WiFi terminal encapsulated by CAPWAP tunnel and described business domains of carrying out certification and/or charging at IP layer carry out communicating is sent to BRAS, and is that described WiFi terminal distributes a 2nd IP address by described WiFi terminal and the described described BRAS that makes alternately carrying out the business domains of certification and/or charging at IP layer.
BRAS in this enforcement refers to the BRAS comprising AC functions of the equipments, sets up CAPWAP tunnel between such CPE and BRAS, carries out CAPWAP tunnel encapsulation for the business of carrying out certification and/or charging at IP layer initiated WiFi terminal.
Described determining unit 43, for determining the type of the upstream data service that described WiFi terminal is initiated according to the described destination address in the five-tuple information of described upstream data service.
Destination address information in the Access Control List (ACL) of upstream data service may be used for the type of the data service determining the business domains that described WiFi terminal will be accessed.The data service that WiFi terminal can be supported comprises to be had: IMS, IPTV and HSI, operator's self-operated business etc., but is not limited thereto.Usual operator has planned the destination address section in different business territory, like this according to the destination address of the data service of WiFi terminal initiation, the destination address section of each data service in the Access Control List (ACL) of upstream data service, determining unit 43 can determine the business domains type that WiFi terminal will be accessed.Such as, the destination address of IMS business domains is 192.168.0.0-192.168.255.255, if the destination address of the data service that described WiFi terminal will be accessed is 192.168.50.23,43 data services can determining that described WiFi terminal will be accessed of such determining unit are IMS business domains.For the Business Stream do not matched in upload control list, be defaulted as HSI business.The data service that WiFi terminal can be supported comprises HSI, IMS, IPTV and operator's self-operated business etc.
Further, after determining the type of the upstream data service that described WiFi terminal is initiated, determining unit 43 can also determine the precedence information of the upstream data service that described WiFi terminal is initiated according to the precedence information of pre-configured upstream data service.
Described IP layer service processing unit 44, if determine that the upstream data service that described WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer for described determining unit, described upstream data service is encapsulated by described CAPWAP tunnel.
Such as, determining unit 43 parses the destination address of the business domains will accessed in the upstream data service message of WiFi terminal initiation.If the destination address of the data service that described WiFi terminal will be accessed is 1.10.2.3, the data service that the Access Control List (ACL) determination WiFi terminal of the corresponding upstream data service of such determining unit 43 will be accessed is HSI business.Described upstream data service is encapsulated by CAPWAP tunnel by such IP layer service processing unit 44.
Described application layer Service Processing Unit 45, if the upstream data service of also initiating for WiFi terminal is the data traffic types carrying out certification and/or charging in application layer, the described 2nd IP address transition of the described WiFi terminal of being carried by the message of the described upstream data service of carrying is a described IP address of described cpe device.
If the destination address of the data service that described WiFi terminal will be accessed is 192.168.50.23,43 data services determining that WiFi terminal will be accessed of such determining unit are IMS business.Because IMS business carries out charging in application layer, the 2nd IP address transition of the described WiFi terminal of carrying in this upstream data service message is an IP address of CPE self by such application layer process unit 45.
Processed unit 46, for the type of upstream data service initiated according to described WiFi terminal and the precedence information of described upstream data service, carries out priority scheduling to the upstream data service that described WiFi terminal is initiated.
Further, in order to better process multiple upstream data service, the precedence information of upstream data service is further comprises in the upstream data service Access Control List (ACL) that acquiring unit 41 obtains, such CPE provides different priority schedulings according to the corresponding different precedence information processed unit 46 of different data traffic types to different upstream data services, concrete can adopt WFQ (WeightedFairQueuing, Weighted Fair Queuing) congestion management algorithm.
Carrying map unit 47, is mapped to corresponding carrying for the upstream data service of described WiFi terminal being initiated according to the QoS mechanism of EPS.
Such as, after CPE/AP powers on, EPC completes certification to CPE/AP according to 3GPP normal process, and sets up PDN connection.This PDN connects corresponding default EPS carrying and has the special EPS carrying of permanent online demand.
Tunnel is set up unit 42 and is set up CAPWAP control channel and data channel according to CAPWAP standard and AC simultaneously, CAPWAP control channel and data channel are carried on EPS dedicated bearer corresponding to CPE/AP respectively, as the carrying of CAPWAP control channel can on EPS dedicated bearer and default bearer.
If the upstream data service that WiFi terminal is initiated like this carries out certification and/or charging at IP layer, the message of described upstream data service is carried out CAPWAP encapsulation by such IP layer service processing unit 44.Then carry map unit 47 to be mapped on corresponding EPS dedicated bearer according to the message of the described upstream data service of QoS mechanism of EPS.
If the upstream data service that WiFi terminal is initiated carries out certification and/or charging in application layer, the upstream data service of initiating due to WiFi terminal is not linked into corresponding business domains by BRAS, and above-mentioned upstream data service is mapped to corresponding carrying by carrying map unit 47 mechanism of the QoS according to EPS.As IMS business, this IMS signaling flow is mapped in the Non-GBR carrying of QCI=5 by carrying map unit 47, and IMS media voice flow is mapped to the special GBR carrying of QCI=1, and IMS media video stream can be mapped in the special GBR carrying of QCI=2.Upstream data services different is like this mapped in different carryings, thus EPS can provide different QoS to different upstream data services.
Certainly, above-mentioned carrying maps just for the situation setting up a PDN between CPE and EPC, if when setting up multiple PDN between CPE and EPC, for each PDN, EPC, to be CPE be that every bar PDN connects is assigned an IP address.Such as, set up between CPE and EPC and have 3 PDN to connect, such EPC can be assigned 3 IP addresses for CPE.Such CPE is after the upstream data service message receiving WiFi terminal initiation, according to the type of this upstream data service, type as this upstream data service is the IMS business of carrying out charging in application layer, and such CPE Article 1 PDN that has been IMS service selection connects.Accordingly, the 2nd IP address transition of the described WiFi terminal of carrying in this upstream data service message is the IP address of the Article 1 PDN of CPE by CPE.
Transmitting element 48, is sent to BRAS after the message transmission of the upstream data service encapsulated by CAPWAP tunnel is crossed described EPC, and the message of described upstream data service is sent to corresponding business domains by described BRAS; Or the described message carrying the described upstream data service of an IP address of described cpe device is transmitted to corresponding business domains by described EPC direct routing.
Because the data service carrying out charging in application layer is not linked into corresponding business domains by BRAS by CPE, the data service initiated for WiFi terminal so does not need to carry out CAPWAP tunnel encapsulation, the data service of charging is carried out as business such as IMS, VoIP like this in application layer, to the expense of this data service message be greatly reduced, improve the transmission efficiency of EPS; And due to CPE/AP be an IP address of CPE by the 2nd IP address transition of WiFi terminal, make EPC can perceive the data service of WiFi terminal initiation, thus WiFi terminal can be made can to utilize the carrying mapping mechanism of EPS, thus the priority scheduling of different business can be realized.
Further, if AP with CPE is two equipment be separated, AP and CPE two independently equipment can realize the above-mentioned function being integrated with the CPE of AP function.Concrete, Ethernet interface can be adopted between AP and CPE to connect, and CPE can distribute private network IP address by DHCP message to AP.In this form, the Access Control List (ACL) of upstream data service can carry out Remote configuration by the local management interface of the remote management protocol such as CAPWAP or AP in AP.AP can determine the type of service of the upstream data service that WiFi terminal is initiated after receiving the upstream data service message of WiFi terminal transmission according to the Access Control List (ACL) of this upstream data service.
If the upstream data service that WiFi terminal is initiated is the data service carrying out charging in application layer, the type of service of the upstream data service that the upstream data service message and WiFi terminal that carry the 2nd IP address of WiFi terminal are initiated by AP is packaged into message by Ethernet interface and sends to CPE, and the source IP address of this message is the private network IP address that CPE distributes to AP.
If the upstream data service that WiFi terminal is initiated is the data service carrying out charging at IP layer, the data traffic types of the upstream data service that the upstream data service message carrying the 2nd IP address of WiFi terminal this WiFi terminal initiated and this WiFi terminal are initiated is packaged into CAPWAP message by CAPWAP tunnel and sends to CPE, and the outer source IP address of this CAPWAP message is the private net address that CPE distributes to AP.CPE is after receiving CAPWAP message, and the outer source IP address of CAPWAP is converted to an IP address of CPE by IP layer service processing unit 44, is sent to AC after then this message transmission being crossed EPC.AC carries out decapsulation to this CAPWAP message, is then transmitted to BRAS.
2nd IP address transition of the WiFi terminal of carrying in the upstream data service message of application layer charging WiFi terminal initiated due to the application layer process unit 45 of CPE is an IP address of CPE, the data service that this WiFi terminal is initiated, according to an IP address of the CPE in this upstream data service message, can be mapped in corresponding EPS carrying by such CPE; And for carrying out the data service of charging at IP layer, data service message due to the WiFi terminal initiation of CAPWAP encapsulation carries the 2nd IP address of WiFi terminal, and the data service that this WiFi terminal is initiated is mapped in another carrying by such IP layer service processing unit 44.Thus priority scheduling between the upstream of different business and downstream can be achieved in EPS carrying aspect, ensure that different QoS (QualityofSystem, the service quality) grade between different upstream data service stream.
Further, in order to solve the problem to the independent certification of WiFi terminal and/or charging in prior art, WiFi terminal must be linked into be needed to pass through BRAS when application layer carries out the business of charging, thus the problem that dynamic PCC (PolicyControlandCharging, policy control and charging) strategy and static qos policy are disposed cannot be supported.And in the present embodiment, WiFi terminal access is carried out to the business of charging in application layer, as IMS business, the source address in the upstream data service message that WiFi terminal is initiated by processing unit 44 is converted to an IP address of CPE, and such EPC side can perception.When IMS is by PCRF (PolicyandChargingRulesFunction, policy charging rule function) to P-GW (PacketDataNetworkGateway, grouped data network gateway) trigger special EPS carrying when setting up, P-GW just can be associated with the EPS carrying of CPE, thus can support that dynamic PCC strategy and static qos policy are disposed.
Further, distribute the 2nd IP address by BRAS to WiFi terminal in this enforcement, WiFi terminal is linked into the business domains in the charging of IP layer by BRAS, can realize application system and carry out charging to WiFi terminal separately; WiFi terminal is linked into the business domains of application layer charging by EPC simultaneously, application layer charging is carried out in WiFi terminal by business domains, like this thus achieve application system in advance independent charging is carried out to the different business that WiFi terminal is accessed, thus avoid WiFi terminal when being linked into all different business territories by BRAS, BRAS also must deduct the expense of the business in application layer also charging after carrying out charging to all business.And then the difficulty also reducing the realization of BRAS and AAA (Authentication, Authorization, Accounting, authentication, mandate and statistics) server and dispose.
Further, the cpe device that the embodiment of the present invention provides not only can be comprised LTE interface unit and be communicated by Long Term Evolution LTE mode with base station, LTE-A (the follow-up evolution of LTE-Advanced, LTE technology) interface unit can also be comprised communicated by Long Term Evolution LTE-A mode with base station.
The device in a kind of WiFi terminal access different business territory that the embodiment of the present invention provides, in the type of the upstream data service that determining unit determination WiFi terminal is initiated, by IP layer service processing unit or application layer Service Processing Unit, Intelligent routing is carried out to the different pieces of information business that WiFi end is initiated, as to the business of carrying out certification and/or charging at IP layer, the message carrying described upstream data service is undertaken encapsulating after rear transparent transmission crosses described EPC by described CAPWAP tunnel and sends BRAS by IP layer service processing unit, the message of described upstream data service is sent to corresponding business domains by BRAS, for the business in application layer authentication and/or charging, the described 2nd IP address transition of the described WiFi terminal that the message of the described upstream data service of carrying then carries by application layer Service Processing Unit is a described IP address of described cpe device, is transmitted to corresponding business domains by described EPC direct routing.The business domains of certification and/or charging is carried out in such WiFi terminal access in application layer, do not need to pass through BRAS, message between such WiFi terminal and business domains does not need CAPWAP tunnel to encapsulate, and can not increase the header overhead of message, thus can improve the transmission efficiency of EPS; Simultaneously by carrying out Intelligent routing to dissimilar business domains, the five-tuple in different business territory is different, makes CPE the different pieces of information business of WiFi terminal can be mapped to different EPS carryings, achieves the priority scheduling between different business stream.
Further, can reduce the difficulty that BRAS and AAA realizes and dispose, the upstream data service support dynamic PCC strategy that simultaneously WiFi terminal can be made to initiate and static qos policy are disposed.
Further, CPE by self configuring the priority in different business territory, can also realize the scheduling multiple different business territories that WiFi terminal is initiated being carried out to different priorities.
One of ordinary skill in the art will appreciate that all or part of step realizing said method embodiment can by the relevant hardware of program command (as various process chip, CPU, DSP, FPGA etc.) come, aforesaid program can be stored in a computer read/write memory medium, this program when performing, perform comprise the step of said method embodiment and aforesaid storage medium comprise ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims (11)

1. one kind is linked into the method in different business territory for WiFi terminal, it is characterized in that, be applied to ustomer premises access equipment CPE, described CPE is communicated by WiFi mode with described WiFi terminal, described CPE is communicated by Long Term Evolution LTE mode with base station, described base station is connected by multiple business domains that Evolved Packet Core EPC is corresponding respectively with multiple business, by above-mentioned WiFi mode, LTE mode, make described WiFi terminal by described CPE, described base station, described EPC communicates with described business domains, and wherein, described method comprises:
Undertaken communicating and setting up CAPWAP tunnel by described EPC and Broadband Remote Access Server BRAS in the IP address that described CPE distributes according to described EPC, the message that the WiFi terminal encapsulated by CAPWAP tunnel and the business domains of carrying out certification and/or charging at IP layer carry out communicating is sent to BRAS, and is that described WiFi terminal distributes a 2nd IP address by described WiFi terminal and the described BRAS that makes alternately carrying out the business domains of certification and/or charging at IP layer;
Determine the data traffic types of the upstream data service that described WiFi terminal is initiated;
If the upstream data service that described WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer, described upstream data service is encapsulated by described CAPWAP tunnel; Be sent to BRAS after the message transmission of the upstream data service encapsulated by CAPWAP tunnel is crossed described EPC, the message of described upstream data service is sent to corresponding business domains by described BRAS;
If the upstream data service that WiFi terminal is initiated is the data traffic types carrying out certification and/or charging in application layer, then the described 2nd IP address transition of the described WiFi terminal of being carried by the message of the described upstream data service of carrying is a described IP address of described cpe device; The message of the described upstream data service carrying an IP address of described cpe device is transmitted to corresponding business domains by described EPC direct routing.
2. method according to claim 1, is characterized in that, described determine the data traffic types of the upstream data service that described WiFi terminal is initiated before, also comprise: the Access Control List (ACL) of pre-configured upstream data service; Or dynamically derive from the Access Control List (ACL) of upstream data service;
The Access Control List (ACL) of described upstream data service comprises the five-tuple information of upstream data service, and described five-tuple information comprises the source address of described upstream data service, destination address, source port, destination interface and protocol number;
Describedly determine that the data traffic types of the upstream data service that described WiFi terminal is initiated is specially the type determining the upstream data service that described WiFi terminal is initiated according to the described destination address in the five-tuple information of described upstream data service.
3. method according to claim 2, is characterized in that, before being sent to BRAS, also comprises after the message transmission of the upstream data service encapsulated by CAPWAP tunnel is crossed described EPC:
The upstream data service of described WiFi terminal being initiated is mapped to corresponding carrying according to the QoS mechanism of EPS.
4. method according to claim 2, is characterized in that, before the described message carrying the described upstream data service of an IP address of described cpe device is transmitted to corresponding business domains by described EPC direct routing, also comprises:
The upstream data service of described WiFi terminal being initiated is mapped to corresponding carrying according to the QoS mechanism of EPS.
5. the method according to claim 3 or 4, is characterized in that, described upstream data service of described WiFi terminal being initiated is mapped to corresponding carrying according to the QoS mechanism of EPS and is specially:
If the upstream data service that WiFi terminal is initiated is assigned in many PDN set up between CPE and EPC in a certain PDN connection, the upstream data service of described WiFi terminal being initiated is mapped in corresponding carrying according to the QoS mechanism of EPS in the PDN connection be assigned with.
6. method according to claim 2, is characterized in that, the Access Control List (ACL) of described pre-configured upstream data service also comprises: the precedence information of upstream data service;
The precedence information of the upstream data service of initiating according to described WiFi terminal or the type of upstream data service and described upstream data service, carries out priority scheduling to the upstream data service that described WiFi terminal is initiated.
7. a ustomer premises access equipment CPE, it is characterized in that, described CPE is communicated by WiFi mode with WiFi terminal, described CPE is communicated by Long Term Evolution LTE mode with base station, and described base station is connected by multiple business domains that Evolved Packet Core EPC is corresponding respectively with multiple business, the WiFi mode passed through, LTE mode, make described WiFi terminal by described CPE, described base station, described EPC communicates with described business domains, and described CPE comprises:
Unit is set up in tunnel, an IP address for distributing according to described EPC is communicated with Broadband Remote Access Server BRAS by described EPC, set up CAPWAP tunnel, the message that the WiFi terminal encapsulated by CAPWAP tunnel and the business domains of carrying out certification and/or charging at IP layer carry out communicating is sent to BRAS, and is that described WiFi terminal distributes a 2nd IP address by described WiFi terminal and the described BRAS that makes alternately carrying out the business domains of certification and/or charging at IP layer;
Determining unit, for determining the data traffic types of the upstream data service that described WiFi terminal is initiated;
IP layer service processing unit, if determine that the upstream data service that described WiFi terminal is initiated is the data traffic types carrying out certification and/or charging at IP layer for described determining unit, is encapsulated described upstream data service by described CAPWAP tunnel;
Application layer Service Processing Unit, if the upstream data service of initiating for described determining unit determination WiFi terminal is the data traffic types carrying out certification and/or charging in application layer, then the described 2nd IP address transition of the described WiFi terminal of being carried by the message of the described upstream data service of carrying is a described IP address of described cpe device;
Transmitting element, after the message transmission of the described upstream data service encapsulated by CAPWAP tunnel is crossed described EPC, be sent to BRAS, the message of described upstream data service is sent to corresponding business domains by described BRAS; Or
Message for the described upstream data service of the IP address by carrying described cpe device is transmitted to corresponding business domains by described EPC direct routing.
8. CPE according to claim 7, is characterized in that, also comprises: acquiring unit, for the Access Control List (ACL) of pre-configured upstream data service; Or
For dynamically deriving from the Access Control List (ACL) of upstream data service;
The Access Control List (ACL) of described upstream data service comprises the five-tuple information of upstream data service, and described five-tuple information comprises the source address of described upstream data service, destination address, source port, destination interface and protocol number;
Described determining unit is specifically for determining the type of the upstream data service that described WiFi terminal is initiated according to the described destination address in the five-tuple information of described upstream data service.
9. CPE according to claim 8, is characterized in that, also comprises: carrying map unit, is mapped to corresponding carrying for the upstream data service of described WiFi terminal being initiated according to the QoS mechanism of EPS.
10. CPE according to claim 9, it is characterized in that, described carrying map unit specifically for: if the upstream data service that WiFi terminal is initiated is assigned in many PDN set up between CPE and EPC in a certain PDN connections, the upstream data service of described WiFi terminal being initiated is mapped to according to the QoS mechanism of EPS and carries accordingly in PDN connections be assigned with.
11. CPE according to claim 8, is characterized in that, the Access Control List (ACL) of the upstream data service that described acquiring unit is pre-configured also comprises: the precedence information of upstream data service;
Described CPE also comprises: processed unit, for the upstream data service of initiating according to described WiFi terminal or the type of upstream data service and the precedence information of described upstream data service, priority scheduling is carried out to the upstream data service that described WiFi terminal is initiated.
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