CN101072118A - Home network service quality strategy management system and method - Google Patents
Home network service quality strategy management system and method Download PDFInfo
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Abstract
The invention is in use for solving issue that unified management of QoS strategy for family network is unable to be realized under telecom operating platform. The disclosed system includes: interface module of QoS strategy database, module of QoS strategy database, service module of UPnP QoS strategy retainer, service module of UPnP QoS strategy manager, service module of UPnP QoS equipment, and packet forwarding and queuing module based on priority. The method includes: receiving data packet of configuring QoS strategy, and generating QoS strategy based on service flow; building request message, and matching the QoS strategy; transferring key information from the matched data packets to QoS strategy database so as to generate QoS strategy entries based on quintuple, and arrange priorities of data packets. Using the disclosed system and method realizes unified management of QoS strategy for family network under telecom operating platform.
Description
Technical field
The present invention relates to the digital home field, particularly in digital home network, realize the system and method for quality of service policy management.
Background technology
The develop rapidly of digital technology is constantly expediting the emergence of numerous digital products, digital products such as PC, PDA, mobile phone, Digital Television, DVD, MP3, DV/DC progressively enter in the common life, meanwhile, the universal development that has greatly promoted digital media content of broadband connections and the Internet.Digital home network will provide new network opportunity for telecom operators as the extension of broadband network and the expansion of broadband value-added service.
Digital home network is a communication network part end to end, will be the center with the home gateway, by home gateway public network functions and application is extended to family.Digital home network be communication network by the extension of last kilometer to last meter, rely on the advantage that telecommunication network service merges to provide service content end to end for digital home network.
Need in the digital home network to share and transmit diversified media content, speech, video, online browsing, static images, literal, control messages etc. are arranged, these business have distinct requirement for the QoS (service quality) of network.Therefore the realization of QoS at first need be in the bandwidth mapping distribution mechanism that realizes on the home gateway between external network and the home network, with Business Stream in the external network according to the distribution of remapping of home network situation, need on home gateway, realize the dynamic reservation and the distribution function of bandwidth, home gateway need be realized the quality-of-service mechanisms of external network and home network simultaneously, guarantees QoS end to end; In addition, need the QoS ability of each terminal in the family be defined, formulate the qos signaling mechanism between terminal equipment and the home gateway.
Progressively clear along with the digital home network notion, the problem of standard is following.UPnP (UPnP) is at the general peer-to-peer network connection of PC of intelligent appliance, wireless device and various apparent sizes and a kind of framework of design.UPnP supports zero configuration network and automatic locating function.UPnP equipment can dynamically add network, obtains the IP address, announces the title of oneself, and function is provided as required, and understands the existence and the function of miscellaneous equipment.In addition, but equipment also breaks away from network in automatic steady ground, and can not leave over any unnecessary state that has.Usually, in UPnP realizes two notions are arranged, one is equipment, and another is the control point.The various services that equipment can provide the UPnP agreement to stipulate, control point come to communicate with equipment then by a series of reciprocal process of UPnP agreement regulation, to obtain own information of interest and the purpose that reaches control appliance.
In communication network, in most applicable cases, home gateway is provided by the service provider.The service provider can provide acquiescence QoS level, and acquiescence QoS level may all be consistent in the operator coverage; Perhaps customize, the qos policy database on the home gateway is configured and manages, to solve difference for the difference service of certain family by WEB interface or TR069 network management system according to each family.In case after the management that the QoS level is distributed was determined, this strategy was necessary for the equipment of all the accord with Q oS standards on the home network and shares.So, provide qos policy manager such as operator,, and further the QoS characteristic of expectation is linked up with main frame with home gateway.
The QoS that home terminal is set by hand is the thing that bothers very much, and need professional knowledge, the user has been proposed very high requirement, therefore needed a kind of mechanism that issues QoS dynamically, network is the service quality of the miscellaneous service of managing family network so effectively.Therefore need provide a kind of mechanism, allow the equipment of those supports QoS in the home network can find home gateway, use the qos policy management service that resides in the home gateway then, distribute priority unitedly at whole home network with in using.
Summary of the invention
In order to overcome above-mentioned defective, the object of the present invention is to provide a kind of system and method for under the telecom operation platform, realizing the home network service quality strategy management of home network QoS strategy unified management.
In order to achieve the above object, the system of home network service quality strategy management of the present invention comprises:
The qos policy database interface module is used to provide the external operation interface, receives configuration, management and control information, and the qos policy database is operated;
The qos policy database module is used to store the qos policy clauses and subclauses that qos policy clauses and subclauses that the user disposes for equipment in the home network and application and storage UPnP control point are created for Business Stream QoS request;
UPnP qos policy keeper service module is used to inquire about the qos policy database module, is distinct device in the home network and application unified distribution qos policy parameter;
UPnP qos policy manager service module is used to receive the message of setting up from control point request QoS, and to the qos policy of UPnP qos policy keeper service module request correspondence, is distinct device in the home network and uses and determine the qos policy parameter;
UPnP QoS device service module is used to receive the qos policy parameter of determining from UPnP QoS manager service module, and stores in the qos policy database;
Bag based on priority is transmitted and queue module, is used to provide a kind of queuing mechanism, and provides prioritization to packet that receives and the packet that sends again for needs;
Wherein, described qos policy database module is connected with communication interface respectively and between the qos policy database interface module, UPnP qos policy keeper service module, UPnP QoS device service module; UPnP qos policy manager service module is connected with communication interface respectively and between the UPnP qos policy keeper service module, UPnP QoS device service module; Be connected with communication interface based on the bag forwarding of priority and queue module and qos policy database module.
Wherein, described UPnP QoS manager service module comprises at least:
Find control module, be used to finish the control point function, find and control UPnP qos policy keeper's service module and UPnP QoS device service module on the home network;
The inquiry receiver module is used to receive the message of setting up at the control point QoS request from UPnP on the home network, sends out the QoS query messages and gives UPnP qos policy keeper service and receive Query Result;
Send creation module, be used for that the qos policy that inquires is sent out message and give UPnP QoS device service module, create the qos policy clauses and subclauses.
Wherein, described UPnP QoS manager service module comprises at least: the service equipment list block is used to safeguard UPnP QoS list of devices, and upgrades in time according to UPnP QoS equipment state.
Wherein, bag forwarding and the queue module based on priority comprises at least:
Priority query's module is used on each transmit port priority query being set;
Data packet matched module is used for being complementary according to the five-tuple that sends packet and the qos policy database qos policy clauses and subclauses based on the Business Stream five-tuple;
The packet marking module is used for stamping priority flag to matching the packet of qos policy clauses and subclauses, to not matching the packet of qos policy item, stamps default priority flag, and it is to be sent to put into priority query etc.
Wherein, the qos policy clauses and subclauses of described qos policy database module stored comprise default qos policy clauses and subclauses, based on the qos policy clauses and subclauses of traffic flow types with based on the qos policy clauses and subclauses of Business Stream five-tuple.
The method of a kind of home network service quality strategy management of the present invention may further comprise the steps:
(1) the qos policy database interface module receives the packet of qos policy;
(2) the qos policy database interface module sends to the qos policy database module with described packet, and the qos policy database module generates the qos policy clauses and subclauses based on Business Stream;
(3) UPnP qos policy manager service module makes up data structure according to the Media Stream descriptor of equipment in the home network and application, and after setting up the QoS request message, sends the query messages of qos policy to UPnP qos policy keeper service module;
(4) UPnP qos policy keeper service module is according to the keyword of traffic flow types in the query messages, the qos policy clauses and subclauses that whether exist this Business Stream to be complementary in the inquiry qos policy database module are if exist then these qos policy clauses and subclauses are sent to UPnP qos policy keeper service module; If there is no, then take default qos policy clauses and subclauses and send to UPnP qos policy keeper service module;
(5) UPnP qos policy keeper service module returns to described qos policy clauses and subclauses in the data structure of the described UPnP QoS of step (3) manager service module structure after obtaining the qos policy clauses and subclauses;
(6) after UPnP QoS manager service module is received this strategy entries, described data structure is sent to UPnP QoS device service module on the home gateway;
(7) after the UPnP QoS device service module on the home gateway receives described data structure, extract the key message and the qos policy of this data structure, send to the qos policy database, the qos policy database generates the corresponding qos policy clauses and subclauses based on five-tuple;
(8) transmit based on the bag of priority and queue module to inquiring about at the qos policy database from one or more packets in the home gateway; If the qos policy clauses and subclauses based on five-tuple of the five-tuple of packet and qos policy database do not match, then stamp the default priorities mark to packet, otherwise stamp priority flag to packet based on the bag forwarding and the queue module of priority based on the bag forwarding and the queue module of priority;
(9) put into the corresponding priorities formation based on the bag forwarding and the queue module of priority according to priority of data packets, the wait queue scheduling also sends.
Wherein, described step (1) also comprises step before: after home gateway powers on, the initialization of qos policy database module generates default qos policy, the default qos policy clauses and subclauses that qos policy clauses and subclauses in the described qos policy database module generate for the home gateway initialization, index entry is a traffic flow types.
Wherein, the qos policy clauses and subclauses based on traffic flow types in the described step (2) are the qos policy clauses and subclauses for user's configuration and management, and index entry is a traffic flow types.
Wherein, qos policy clauses and subclauses in the described step (6) based on the five-tuple type, dynamically generate for setting up at Business Stream in the qos policy process, and index entry is the five-tuple of data flow that described five-tuple comprises source address, source port, destination address, destination interface and protocol type.
After adopting above-mentioned system and method, owing to utilized the technical characterstic of existing home gateway, introduce qos policy database, UPnP QoS manager service module, UPnP qos policy keeper's service module and UPnP QoS device service module, administer and maintain qos policy for the user provides unified interface on the one hand, operation is simple more and convenient; The configuration of unified qos policy parameter certificate is provided automatically for distinct device in the home network and application on the other hand, has avoided loaded down with trivial details qos parameter configuration operation, the zero configuration of having accomplished customer parameter.Simultaneously for realizing on the home gateway that system-wide qos feature provides modularized design, reduce the difficulty of system development and improved flexibility, the reliability of system design, and realization comes the service priority of distribution service to the QoS of home gateway requested service according to UPnP control point in the home network, and the priority according to service provides service, realizes the automatic management of qos policy in the home network.
Description of drawings
Fig. 1 is a home network service quality system module schematic diagram of the present invention;
Fig. 2 is the flow chart of the implementation method of home network service quality strategy management of the present invention.
Embodiment
Below in conjunction with accompanying drawing the system and the implementation method of home network QoS are implemented to be described in further detail:
As shown in Figure 1, be QoS structure on the home gateway of correspondence of the present invention, this structure comprises:
Qos policy database interface 101 is passages of the qos policy of reception home network distinct device that the user disposed and application.The qos policy that is based on traffic flow types that the user disposed can be configured by the WEB page, network management system, file mode or other user interface mode.Behind the packet based on the qos policy of type of service that qos policy database interface 101 receives that the user disposes, the resolution data bag obtains the qos policy of corresponding type of service and is stored in the qos policy database 102.
There is multiple UPnP control point equipment on the home network, as set-top box 107, personal computer 108, PDA109 or the like.Home gateway is to other UPnP equipment of home network and the service of application declaration UPnP QoS manager, and perhaps the UPnP manager on the meeting active searching home network serves 103 after UPnP control point 110 adds home networks.After UPnP QoS manager service 103 is found, just wait for come from UPnP control point 110 set up Business Stream QoS request message.
UPnP QoS manager service 103 is main service providers of realizing UPnP QoS on the home network, finish two parts function, the one, have UPnP control point function, find and the control home network on all UPnP qos policy keepers serve 104 and UPnP QoS device service 105; The 2nd, be responsible for request, release and the renewal of various traffic streams qos signaling on the home network.Have 0 or a plurality of UPnP qos policy keeper service on the home network when UPnP QoS manager service 103 searches, then the default qos policy in the qos policy database 102 will be directly visited in UPnP QoS manager service 103.UPnP QoS manager service 103 can be kept the flow through tabulation of all the UPnP QoS device service on the home network approach of a Business Stream, comprises source device, intermediate equipment and destination device.
The request message that requires to set up Business Stream QoS from UPnP control point 110 is waited in UPnP QoS manager service 103, after receiving this request message, the UPnP control point is served as in UPnP QoS manager service 103, serves the qos policy that 104 requests obtain corresponding Business Stream to UPnP qos policy keeper.UPnP qos policy keeper serves the 104 qos policy clauses and subclauses based on Business Stream that will inquire about in the qos policy database 102.
UPnP qos policy keeper serves 104 and receives when QoS message is set up in the request of UPnP QoS manager service 103, to from message, parse the specific transactions stream type, then given traffic streams is made type as input parameter, the function interface inquiry that calling qos policy database 102 provides obtains the qos parameter of this traffic flow types.After obtaining corresponding qos parameter, 103 control messages of UPnP QoS manager service are given UPnP device service 105, and the function interface that notice UPnP device service 105 is called qos policy database 102 to be provided generates the new qos policy clauses and subclauses based on the Business Stream five-tuple.
Transmit and queue module 106 based on the bag of priority, according to the process of sending the packet of one or more network interfaces in family's gateway based on the qos policy clauses and subclauses of Business Stream five-tuple in the qos policy database.Home gateway is just transmitted based on the bag of priority and queuing engine is stamped priority flag when packet enters into, and according to the priority of data packets transmission of ranking.
Explain the schematic embodiment of implementation method of the qos policy management corresponding with the present invention below in conjunction with example.If require the QoS service support new business be added in the home network, new equipment must comprise necessary qos signaling function.Such as, video and voice data are all encoded in set-top box and are communicated by home gateway and remote stream media server, and set-top box is different to the level requirement of the QoS of Voice ﹠ Video data service.Can be configured to by the user interface that the user provides according to home gateway in the qos policy database on the home gateway corresponding to the QoS level of Voice ﹠ Video business.Home network will provide relevant service according to the priority of the qos policy level of being distributed corresponding to the Voice ﹠ Video business.
As shown in Figure 2, be the schematic flow sheet that the described home network QoS tactical management according to the invention process realizes, concrete steps are:
Step 1: when set-top box adds home network, begin to search for the UPnP QoS manager service UPnPQMS on the home network.In home network QoS tactical management realization flow of the present invention, the set-top box control point searches is UPnP QoS manager service UPnP QMS on the home gateway.
Step 2: the UPnP qos policy keeper on the UPnP QoS manager service UPnP QMS search home network on the home gateway serves UPnP QPHS, realizes that in home network QoS tactical management of the present invention UPnP qos policy keeper is served UPnP QPHS to be arranged on the home gateway.
Step 3: the UPnP QoS device service UPnP QDS on the UPnP QoS manager service UPnP QMS search home network on the home gateway, comprise the UPnP QoS device service UPnP QDS on set-top box and the home gateway, safeguarding a UPnPQoS device service tabulation.
Step 4: when set-top box be connected with the remote stream media server session set up successfully after, Streaming Media application program in the set-top box is with the descriptor of Media Stream, described descriptor comprises traffic flow types, five-tuple etc., passes to the UPnP control point in the set-top box.
Step 5: the UPnP control point in the set-top box is according to the descriptor structure TrafficDescriptor data structure of Media Stream, and the QoS of Media Stream is provided as interface the RequestTrafficQos () request that input parameter calls the UPnP QoS manager service UPnP QMS on the home gateway and provides;
Step 6: after the UPnP QoS manager service UPnP QMS on the home gateway receives that coming from the set-top box control point requires to set up the message of QoS, the five-tuple identification information of extraction and storage service stream type and Business Stream is used for managed traffic flow QoS and sets up situation in the TrafficDescriptor content from message.The service of UPnP QoS manager is called UPnP qos policy keeper with TrafficDescriptor as input parameter and is served the corresponding qos policy TrafficPolicy of interface GetTrafficPolicy () requested service stream that UPnP QPHS provides, and described TrafficPolicy comprises TrafficImportanceNumber, UserImportanceNumber etc.;
Step 7:QoS policy database QoS DB receives UPnP qos policy keeper when serving UPnP QPHS and sending the qos policy inquiry request message, to from message, extract the type TrafficClass of Business Stream, coupling is based on the qos policy clauses and subclauses of traffic flow types, if there is no occurrence then continues the default qos policy item of coupling;
Step 8: the UPnP qos policy keeper of home gateway serves the qos policy TrafficPolicy that UPnP QPHS receives the corresponding Business Stream that qos policy database QoS DB returns;
Step 9: the qos policy that the UPnP qos policy keeper of home gateway serves the corresponding Business Stream that UPnP QPHS will ask returns to the UPnP QoS manager service UPnP QMS of home gateway;
Step 10: the UPnP QoS manager service UPnP QMS of home gateway is with SetupTrafficDescriptor, described SetupTrafficDescriptor comprises the five-tuple sign of Business Stream and corresponding qos policy TrafficPolicy etc., call the interface SetTrafficQos () that the UPnP QoS device service UPnP QDS on the home gateway provides as input parameter, require to set up the QoS level of corresponding Business Stream;
Step 11: after the UPnP QoS device service UPnP QDS of home gateway receives and comes from UPnP QoS manager service UPnP QMS and require the message of qos policy is set, to from message, extract the five-tuple descriptor and the corresponding QoS level of Business Stream, the interface that calling qos policy database QoS DB provides writes in the database, generates new strategy entries;
Step 12: the UPnP QoS manager service UPnP QMS of home gateway calls the interface SetTrafficQos () that the UPnP QoS device service UPnP QDS on the set-top box provides with SetupTrafficDescriptor as input parameter, requires to set up the QoS level of corresponding Business Stream;
Step 13: the Streaming Media application program on the set-top box will obtain the QoS levels of priority of stream medium data from UPnP QoS device service UPnP QDS there, and stamp the corresponding priority level mark to packet.Also realize priority queueing and transmission simultaneously on the home gateway, realize that the interior QoS of home network of Business Stream guarantees based on stream medium data.
Claims (10)
1, the system of home network service quality strategy management is characterized in that, comprising:
The qos policy database interface module is used to provide the external operation interface, receives configuration, management and control information, and the qos policy database is operated;
The qos policy database module is used to store the qos policy clauses and subclauses that qos policy clauses and subclauses that the user disposes for equipment in the home network and application and storage UPnP control point are created for Business Stream QoS request;
UPnP qos policy keeper service module is used to inquire about the qos policy database module, is distinct device in the home network and application unified distribution qos policy parameter;
UPnP qos policy manager service module is used to receive the message of setting up from control point request QoS, and to the qos policy of UPnP qos policy keeper service module request correspondence, is distinct device in the home network and uses and determine the qos policy parameter;
UPnP QoS device service module is used to receive the qos policy parameter of determining from UPnP QoS manager service module, and stores in the qos policy database;
Bag based on priority is transmitted and queue module, is used to provide a kind of queuing mechanism, and provides prioritization to packet that receives and the packet that sends again for needs;
Wherein, described qos policy database module is connected with communication interface respectively and between the qos policy database interface module, UPnP qos policy keeper service module, UPnP QoS device service module; UPnP qos policy manager service module is connected with communication interface respectively and between the UPnP qos policy keeper service module, UPnP QoS device service module; Be connected with communication interface based on the bag forwarding of priority and queue module and qos policy database module.
According to the system of the described home network service quality strategy management of claim 1, it is characterized in that 2, described UPnP QoS manager service module comprises at least:
Find control module, be used to finish the control point function, find and control UPnP qos policy keeper's service module and UPnP QoS device service module on the home network;
The inquiry receiver module is used to receive the message of setting up at the control point QoS request from UPnP on the home network, sends out the QoS query messages and gives UPnP qos policy keeper service and receive Query Result;
Send creation module, be used for that the qos policy that inquires is sent out message and give UPnP QoS device service module, create the qos policy clauses and subclauses.
3, according to the system of the described home network service quality strategy management of claim 2, it is characterized in that, described UPnP QoS manager service module comprises at least: the service equipment list block is used to safeguard UPnP QoS list of devices, and upgrades in time according to UPnP QoS equipment state.
4, according to the system of the described home network service quality strategy management of claim 1, it is characterized in that, transmit and queue module comprises at least based on the bag of priority:
Priority query's module is used on each transmit port priority query being set;
Data packet matched module is used for being complementary according to the five-tuple that sends packet and the qos policy database qos policy clauses and subclauses based on the Business Stream five-tuple;
The packet marking module is used for stamping priority flag to matching the packet of qos policy clauses and subclauses, to not matching the packet of qos policy item, stamps default priority flag, and it is to be sent to put into priority query etc.
5, according to the system of the described home network service quality strategy management of claim 1, it is characterized in that: the qos policy clauses and subclauses of described qos policy database module stored comprise default qos policy clauses and subclauses, based on the qos policy clauses and subclauses of traffic flow types with based on the qos policy clauses and subclauses of Business Stream five-tuple.
6, a kind of method of home network service quality strategy management is characterized in that, may further comprise the steps:
(1) the qos policy database interface module receives the packet of qos policy;
(2) the qos policy database interface module sends to the qos policy database module with described packet, and the qos policy database module generates the qos policy clauses and subclauses based on Business Stream;
(3) UPnP qos policy manager service module is according to the Media Stream descriptor construction data bag of equipment in the home network and application, and after setting up the QoS request message, sends the query messages of qos policy to UPnP qos policy keeper service module;
(4) UPnP qos policy keeper service module is inquired about the qos policy clauses and subclauses that whether exist this Business Stream to be complementary in the qos policy database module according to the keyword of traffic flow types in the query messages; If exist then these qos policy clauses and subclauses are sent to UPnP qos policy keeper service module, if there is no, then take default qos policy clauses and subclauses and send to UPnP qos policy keeper service module;
(5) UPnP qos policy keeper service module returns to described qos policy clauses and subclauses in the packet of the described UPnP QoS of step (3) manager service module structure after obtaining the qos policy clauses and subclauses;
(6) after UPnP QoS manager service module is received this strategy entries, described packet is sent to UPnP QoS device service module on the home gateway;
(7) after the UPnP QoS device service module on the home gateway receives described packet, extract the key message and the qos policy of this packet, send to the qos policy database, the qos policy database generates the corresponding qos policy clauses and subclauses based on five-tuple;
(8) transmit based on the bag of priority and queue module to inquiring about at the qos policy database from one or more packets in the home gateway; If the qos policy clauses and subclauses based on five-tuple of the five-tuple of described packet and qos policy database do not match, then stamp the default priorities mark to packet, otherwise stamp priority flag to packet based on the bag forwarding and the queue module of priority based on the bag forwarding and the queue module of priority;
(9) put into the corresponding priorities formation based on the bag forwarding and the queue module of priority according to priority of data packets, the wait queue scheduling also sends.
According to the method for the described home network service quality strategy management of claim 6, it is characterized in that 7, described step 5 is specially:
(a) UPnP qos policy keeper service module will send control information to UPnP QoS manager service module after obtaining the qos policy clauses and subclauses;
(b) UPnP QoS manager service module sends to control information the UPnP QoS device service module of equipment in the home network or application.
8, according to the method for the described home network service quality strategy management of claim 6, it is characterized in that, described step (1) also comprises steps A before: after home gateway powers on, the initialization of qos policy database module generates default qos policy, the default qos policy clauses and subclauses that qos policy clauses and subclauses in the described qos policy database module generate for the home gateway initialization, index entry is a traffic flow types.
9, according to the method for the described home network service quality strategy management of claim 6, it is characterized in that, the qos policy clauses and subclauses based on traffic flow types in the described step (2) are the qos policy clauses and subclauses for user's configuration and management, and index entry is a traffic flow types.
10, according to the method for the described home network service quality strategy management of claim 6, it is characterized in that, qos policy clauses and subclauses in the described step (6) based on the five-tuple type, dynamically generate for setting up at Business Stream in the qos policy process, and index entry is the five-tuple of data flow, and described five-tuple comprises source address, source port, destination address, destination interface and protocol type.
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| WO2009086702A1 (en) * | 2008-01-09 | 2009-07-16 | Zte Corporation | A system and method for implementing a dynamic quality of service request based on a single service |
| CN102025624A (en) * | 2009-12-18 | 2011-04-20 | 中国科学院声学研究所 | Multilevel dynamic home network service quality assurance method |
| CN102223290A (en) * | 2010-04-15 | 2011-10-19 | 华为终端有限公司 | Quality of service (QoS) configuration method, QoS configuration device and QoS configuration system |
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| CN103685058A (en) * | 2012-09-11 | 2014-03-26 | 北京信息科技大学 | Method for controlling QoS (Quality of Service) of stream data, and OpenFlow controller |
| CN104486245A (en) * | 2014-12-16 | 2015-04-01 | 上海斐讯数据通信技术有限公司 | Flow control method, system and gateway equipment |
| WO2016202069A1 (en) * | 2015-06-17 | 2016-12-22 | 中兴通讯股份有限公司 | Method and device for allocating gateway-side network resource |
| CN114079945A (en) * | 2020-08-18 | 2022-02-22 | 维沃移动通信有限公司 | Service management method and node |
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