WO2007082448A1 - Procédé de qualité de service (qos) garantie, dispositif de gestion de ressources et système d'accès multi-services - Google Patents

Procédé de qualité de service (qos) garantie, dispositif de gestion de ressources et système d'accès multi-services Download PDF

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Publication number
WO2007082448A1
WO2007082448A1 PCT/CN2006/003329 CN2006003329W WO2007082448A1 WO 2007082448 A1 WO2007082448 A1 WO 2007082448A1 CN 2006003329 W CN2006003329 W CN 2006003329W WO 2007082448 A1 WO2007082448 A1 WO 2007082448A1
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WO
WIPO (PCT)
Prior art keywords
service
link
access network
resources
bas
Prior art date
Application number
PCT/CN2006/003329
Other languages
English (en)
French (fr)
Inventor
Wumao Chen
Jiahong Wei
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP06828272.2A priority Critical patent/EP1976184B1/en
Priority to CN2006800122479A priority patent/CN101160805B/zh
Publication of WO2007082448A1 publication Critical patent/WO2007082448A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/82Miscellaneous aspects
    • H04L47/824Applicable to portable or mobile terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/80Actions related to the user profile or the type of traffic
    • H04L47/805QOS or priority aware
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/08Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0876Network utilisation, e.g. volume of load or congestion level
    • H04L43/0882Utilisation of link capacity

Definitions

  • Resource management device access system and method for guaranteeing multi-service service quality
  • the present invention relates to a network access technology, and more particularly to a resource management device, an access system and a method for guaranteeing the quality of multi-service monthly services.
  • FIG. 1 is a schematic structural diagram of a system for accessing a network in the prior art, including a service terminal 11, a broadband access network 12, and a backbone network 13.
  • the service terminal 11 is a terminal device and a service originating device used by the user during the Internet access, for example, a cable television, a Session Initiation Protocol (SIP) telephone, a set top box (STB), and a portable computer.
  • the broadband access network 12 includes: a user access device, a network convergence device, and a broadband access server (BAS).
  • BAS broadband access server
  • the user access device is connected to the service terminal and the network convergence device, and the user line connection function is implemented; the network aggregation device is connected to the user access device and the BAS; and the BAS is configured to access the backbone network 13 of the service.
  • the topology of the broadband access network 12 is complex, the connection relationship between the user access device, the network aggregation device, and the BAS is complex, and the topology is different in different applications, which may be a star or a tree. , a ring or a chain, or a combination of different topologies, so the specific connections between the various network devices are not specified in detail in the block diagram shown in FIG.
  • the user's Internet access service is basically an ordinary Internet access service, and at the same time, considering the cost and the limited number of users, the access device in the broadband access network at that time is adopted for all data packets. Best Effort's forwarding method does not distinguish the type of business.
  • the referred access device is a user access device, a network convergence device, and a BAS in a broadband access network. Since the Best Effort forwarding mode is used in the broadband access network, it is sent at the user access device and the network aggregation device. Congestion is inevitable.
  • the broadband access network reserves sufficient bandwidth for each access device in the network, and simultaneously accesses the access device. New traffic is controlled, and the maximum number of accounts for real-time services of the network is artificially limited according to the bandwidth reserved by the network device and the QoS requirements of the service.
  • the bandwidth is reserved for each access device, the estimated reservation is usually performed according to the maximum concurrent users and the maximum high-level service rate of the access device, and thus service convergence cannot be achieved; Since the maximum number of users and the types of services have been predetermined in the reservation of bandwidth, it is not suitable to expand users and services, especially in some high-level services. For example, real-time video (VOD) "virtual traffic" is very low, but the reserved bandwidth is very large, thus causing a great waste of network resources.
  • VOD real-time video
  • the main object of the present invention is to provide an access system that guarantees the quality of multi-service services, and the system can guarantee the service quality of multiple services.
  • Another main object of the present invention is to provide a resource management device that guarantees the quality of multi-service services, and the resource management device can be used to guarantee the service quality of multiple services.
  • Another main object of the present invention is to provide a method for guaranteeing the quality of multi-service services, which can guarantee the service quality of multiple services.
  • the present invention provides an access system for guaranteeing quality of multi-service services, the system including at least; a service terminal, configured to establish, by using an access network, an application server to establish a connection for a service request having a service quality requirement;
  • An application server configured to apply for an occupation resource to the access network resource management device according to resources required for applying for the service
  • the access network resource management device is configured to receive an application for occupying resources of the application server, determine a link from the user access device to the BAS that the service needs to access in the access network, and according to whether the required link has sufficient Available resources, determine to establish a connection or reject the service.
  • the access network resource management device determines whether there are sufficient resources for the service to use according to resources required by the service, and returns the result of applying for the resource to the application server;
  • the application server returns a result of requesting to establish a connection to the service terminal according to the result returned by the access network resource management device.
  • the access network resource management device is configured to: set a QoS rule for each service having a service quality requirement, send a QoS rule corresponding to the service to the B AS, or instruct the BAS to delete the QoS rule corresponding to the service;
  • the BAS performs or deletes the QoS rule delivered by the access network resource management device.
  • the access network resource management device includes a database unit and a management control unit; the database unit is configured to record all links between the user access device and the BAS, and resources of each link. Accepting the modification of the resource occupancy of each link by the management control unit;
  • the management control unit is configured to receive an application that the application server occupies resources or release resources, determine a link that the service needs to pass from the user access device to the BAS, and determine whether the required link has sufficient available resources. Establish a connection or reject the business.
  • the management control unit determines whether there are sufficient resources for the service to use according to resources required by the service, and returns a request for resource occupation to the application server. fruit.
  • the database unit is further recorded as a QoS rule set for each service having a quality of service requirement;
  • the management control unit sends the QoS rule corresponding to the service to the BAS or the QoS rule corresponding to the BAS deletion service.
  • the present invention further provides an access network resource management device that guarantees multi-service quality of service, where the access network resource management device includes a database unit and a management control unit;
  • the database unit is configured to record all the links between the user access device and the BAS, and the resources of each link, and accept the modification of the resource usage of each link by the management control unit;
  • the management control unit is configured to receive an application that the application server occupies resources or release resources, determine a link that the service needs to pass from the user access device to the BAS, and determine whether the required link has sufficient available resources. Establish a connection or reject the business.
  • the management control unit determines whether there are sufficient resources for the service to use according to the resources occupied by the services required by the service, and returns the result of applying for the resource occupation to the application server.
  • the database unit further records QoS rules set for each service having a service shield requirement
  • the management control unit sends the QoS rule corresponding to the service to the BAS or the QoS rule corresponding to the BAS deletion service.
  • the present invention also provides a method for guaranteeing the quality of multi-service services, setting an access network resource management device in the access system, and recording each of the user access devices to the BAS in the access network resource management device.
  • the method includes the following steps:
  • the application server When the service terminal initiates the service with the service quality requirement, the application server is requested to establish a connection, and the application server manages the device according to the current service required resources to the access network resource. Apply for resources;
  • the access network resource management device determines the link required for the current service from the user access device to the BAS, and according to the resources of each link, determines whether the link required for the current service has sufficient available resources, if any , establish a connection; otherwise, reject the current business.
  • the node data table is set in the access network resource management device, and the network topology structure of the access network is treed in advance, and each user interface is recorded in the node data table according to the tree topology of the tree structure.
  • the link that the device enters to the BAS, and the link that the current service needs to pass from the user access device to the BAS is as follows:
  • the user access device that determines the service access determines the link that the current service needs to pass from the user access device to the BAS according to the accessed user access device lookup node data table.
  • the tree topology of the access network is treeized as: tree sharing the shared ring and the non-shared ring in the access network, and maintaining other topology structures in the access network unchanged .
  • the shared ring is treed as follows: Each network device on the shared ring shares a link and accesses the access device.
  • the non-shared ring is treed to: connect each network device on the non-shared ring to the access device, and each network device shares the resources on the original unshared ring in proportion.
  • the link data table is set in the access network resource management device, and the resources of the links between the user access device and the BAS are recorded as follows: the user access device is recorded in the link data table to the BAS. Resources of each link;
  • step B it is determined whether the link required for the current service has sufficient resources, according to the link occupied by the current service, and the available resources of the current occupied link are found in the link data table. Depending on the resources required by the service, determine whether the available resources of the link required by the current service have the resources required by the service, and if so, establish a connection; otherwise, reject the current service.
  • the method before establishing the connection, the method further includes: the access network resource management device returns a message agreeing to the current service resource occupation to the application server, and the application server returns a message for agreeing to the current service access to the service terminal by using the access network.
  • the rejecting the current service in step B is: the access network resource management device returns a message that does not agree with the current service resource occupation to the application server, and the application server returns to the service terminal to disagree with the current privilege access through the access network. Message.
  • step B when the link required for the current service has sufficient resources available, the method further includes: the current service occupies the resources of the required link;
  • step B the method further includes:
  • the service terminal requests the application server to remove the connection; the application server instructs the access network resource management device to release the resources occupied by the current service; and disconnects the current service with the access network resource management device and the BAS.
  • the access network resource management device further sets a QoS rule for each service having a quality of service requirement
  • Establishing the connection as described in step B includes the following steps:
  • the access network resource management device finds the QoS rule set by itself according to the current service, and obtains the QoS rule corresponding to the current service;
  • step C includes the following steps:
  • the access network resource management device instructs the BAS to delete the QoS rule of the current disconnected service
  • An access system for guaranteeing multi-service quality of service provided by the present invention, by adding an access network resource management device in the access system, according to the bandwidth required for accessing the service, Decide whether to agree to the service access, achieve the service convergence ratio, and guarantee the service quality of multiple services.
  • the access network resource management device for ensuring multi-service quality of service provided by the present invention, by cooperating with the broadband access network and the backbone network, determines the link and the required resources according to the request access service. Whether to agree to the resource occupation request of the service, and agreeing to access the service when the resource is available, thereby realizing the service convergence ratio and ensuring the quality of the multi-service service.
  • the method for guaranteeing the quality of multi-service service applies for resource occupation to the access network when initiating a service with QoS requirements, and allows the service to be accessed when the resource is available. Into, to achieve a business convergence ratio, to ensure the quality of service for multiple services.
  • FIG. 1 is a structural diagram of an access system in the prior art
  • FIG. 2 is a structural diagram of an access system in the present invention
  • FIG. 3 is a structural diagram of an access network resource management device in the present invention.
  • Figure 4 is a schematic diagram of a shared ring tree
  • Figure 5 is a schematic diagram of a non-shared ring tree ⁇ ⁇ ;
  • FIG. 6 is a flow chart of the method of the present invention. Mode for carrying out the invention
  • the core idea of the present invention is: Adding an access network resource management device in the access system for managing the topology structure and network resources in the access network.
  • the service terminal first applies for resource occupation to the access network resource management device through the application server, and the access network resource management device judges according to the data recorded in the database. Whether the sufficient resources are available is available, and the result of the judgment is notified to the application server, and the application server determines whether to accept the access of the service according to the resource occupied by the application and the judgment result.
  • the service with QoS requirements refers to: real-time service, or other online services that require quality assurance.
  • the resources involved in the present invention are mainly link resources, and the bandwidth in the link resources is taken as an example for description.
  • FIG. 2 is a structural diagram of an access system according to the present invention, including: a service terminal 11, a broadband access network 12, a backbone network 13, an access network resource management device 24, and an application server 25, wherein a solid line indicates a physical connection, and a dotted line Represents a signaling connection between network devices.
  • a call connection request is established through the application sent by the broadband access network 12 and the backbone network 13 to the application server 25.
  • the application server 25 such as a softswitch device, is connected to the BAS through the backbone network 13, and establishes a signaling connection with the access network resource management device 24 through the BAS and the backbone network 13 for receiving the service terminal 11 through the broadband access.
  • the application sent by the network 12 and the backbone network 13 establishes a call connection request, and sends a request for the resource occupation to the access network resource management device 24 for the service initiated by the service terminal 11, and is occupied according to the application returned by the access network resource management device 24.
  • the resource result returns a result of requesting to establish a call to the service terminal; receiving a request sent by the service terminal to tear down the call connection, and transmitting, to the access network resource management device 24, a request for releasing the resource for the service terminal, according to the resource management of the access network
  • the device 24 returns the result of applying for releasing the resource, and disconnects the service terminal from itself.
  • the internal structure diagram of the access network resource management device 24 is as shown in FIG. 3, and includes a database unit 31 and a management control unit 32, which are specifically described as follows:
  • a node data table and a link data table are set in the database unit 31 of the access network resource management device 24.
  • Node data table used to record the chain that the user needs to access the device to the BAS Road.
  • the link data table is used to record resources of all links between the user access device and the BAS, including total resources, occupied resources, and remaining resources of each link.
  • the specific content of the node data table is shown in Table 1.
  • the specific content of the link data table is shown in Table 2.
  • the bandwidth is used to indicate the resource status of the link.
  • the QoS rules corresponding to various services need to be set.
  • the various services referred to herein are: services with QoS requirements.
  • the management control unit 32 is configured to receive a request for the service terminal 11 sent by the application server 25 to apply for the resource, and determine from which user access device the request is sent, so as to determine the time required for the service corresponding to the request to arrive at the BAS. link. After obtaining the link that the service needs to pass, the resource occupancy of the link in the database unit 31 is checked. If the link that is required to pass the service is available, the resource occupied by the application server 25 is agreed. The application, if it is checked that any one of the links through which the service terminal 11 arrives at the BAS does not have the resources required by the service terminal 11, the resource occupation application is rejected. Under the premise of agreeing to the occupation of resources, the management control unit 32 searches according to the type of application business.
  • the management control unit 32 is further configured to receive a request for releasing the resource sent by the application server 25, update the resource occupancy of the link recorded in the database unit 31, and indicate the BAS according to the link used by the service for releasing the resource.
  • the QoS rule used by the service is deleted, and the application release resource result is returned to the application server 25.
  • the method of updating the database unit 31 is to add the resources released by the end of the service to the occupied resources in the link data table, and according to the method that the remaining resources are equal to the total resources minus the occupied resources, correspondingly Modify the remaining resources in the link data table.
  • the access network resource management device needs to know the link that the service passes through the user access device to the BAS, and therefore needs to be based on the broadband access before implementing the method provided by the present invention.
  • the topology structure in the network pre-stores the links between all user access devices and the BAS in the database unit of the access network resource management device.
  • the topology of a broadband access network is complex, and may include a ring, in addition to a tree, a star, or a chain.
  • the star and the chain are all special forms of the tree, the tree, the star, and the chain can be connected to the link between the user access device and the BAS according to the tree topology.
  • the ring topology due to the uncertainty of the user access device accessing the BAS link through the ring topology, it is impossible to directly obtain the user access device to the BAS according to the topology of the tree structure like the tree structure. Link.
  • the ring topology in the broadband access network needs to be treed in advance, so that the entire network is represented as a tree topology. Then record all possible links between the user access device and the BAS according to the tree topology.
  • the method of ring topology tree is as follows: The ring topology is divided into a shared ring and a non-shared ring.
  • the network devices on the shared ring share the resources on the shared ring.
  • On the non-shared ring the network device occupies resources on the shared ring according to a certain proportion.
  • the shared ring may be: Rapid Spanning Tree Protocol (RSTP), Resilient Packet Ring (RPR) or Shared Ring (VP-Ring), etc.
  • the non-shared ring may be: Synchronous Digital Hierarchy (SDH) or Multi-Protocol Label switching (MPLS), etc.
  • RSTP Rapid Spanning Tree Protocol
  • RPR Resilient Packet Ring
  • VP-Ring Shared Ring
  • SDH Synchronous Digital Hierarchy
  • MPLS Multi-Protocol Label switching
  • Figure 4 is a schematic diagram of a shared ring tree.
  • the network aggregation device and BAS are used as an example in Figure 4.
  • the network aggregation devices A, B, C, D, and BAS are all located on the shared ring before the shared ring is treed.
  • the virtual link is introduced to the network aggregation device.
  • B, C, and D are considered to share a virtual link and access the BAS.
  • the network aggregation devices A, B, C, and D share resources between the network aggregation device and the BAS.
  • Figure 5 is a schematic diagram of a non-shared ring tree.
  • the network aggregation device and BAS are also taken as an example in Figure 5.
  • network aggregation devices A, B, C, D, and BAS are all located on the non-shared ring before the non-shared ring is treed.
  • the network aggregation devices A and B are used.
  • the C and D are respectively connected to the BAS, and the resources between the network aggregation device and the BAS are allocated according to the resources of the non-shared ring link originally occupied by the network aggregation device, and the tree is obtained as shown in FIG. Topological structure.
  • the proportion of the non-shared ring resources may not be allocated according to the proportion of the original network aggregation device, but may be re-established according to the requirements of the current network environment. Make an assignment.
  • a network device in a BAS state on a shared ring and a non-shared ring may be referred to as an access device of the shared ring and a non-shared ring; a network device in a network aggregation device state may be directly referred to as The shared ring and non-shared ring network devices.
  • the ring topology can also be treed according to the method shown in FIG. 4 and FIG. 5.
  • the network convergence The device becomes the access device of the shared ring and the non-shared ring
  • the user access device becomes the network device of the shared ring and the non-shared ring.
  • the access network resource management device sets the node data table, the link data table, and the QoS rules corresponding to each service according to the topology structure of the network
  • the present invention may be completed according to the process shown in FIG. 6.
  • the link bandwidth is selected to represent the resources of the link, and the specific process is as follows:
  • Step 601 When the service terminal initiates the service with the QoS requirement, the service terminal sends a request for establishing a call connection to the application server, where the bandwidth occupied by the show required for the service and the type of the service are carried.
  • the service terminal initiates an ordinary Internet service that does not have QoS requirements
  • the ordinary Internet access service is completed according to the existing technical process, and the process is not executed.
  • Step 602 After receiving the request for establishing a call connection sent by the service terminal, the application server applies for the resource occupied by the access network resource management device for the Internet access service, and the bandwidth required for the Internet service to be carried in the application and The type of business currently on the Internet.
  • Step 603 After receiving the request for resource occupation sent by the application server, the access network resource management device first determines which user access device the access service is accessed from, and determines the user access device of the service. Then, look up the node data table of the user to obtain the link that the user accesses the device to the BAS; and then find the link that the service needs to pass through in the link data table according to the bandwidth required by the service. Whether there is sufficient bandwidth, if any, agrees that the request for the service occupies the resource request; if any link that needs to pass does not have sufficient bandwidth, it does not agree with the request for resource occupation of the service.
  • the method for specifically determining that the Internet access service is accessed from the user access device may be performed according to a method for positioning a broadband user in the prior art and other means.
  • the process of determining whether there is sufficient bandwidth on the link is: determining whether the remaining bandwidth on the link is greater than or equal to the bandwidth required by the service. If yes, the link has sufficient bandwidth for the service. Use; otherwise, there is not enough bandwidth on the link for the service to use.
  • Step 604 The access network resource management device returns the result of applying for the occupied resource to the application server.
  • the application server returns the agreed resource occupation result.
  • Step 606 If the access network resource management device does not agree to the service request for resource occupation in step 603, return a request for rejecting the application resource occupation to the application server.
  • Step 605 The application server returns a result of applying for establishing a call to the service terminal according to the result of the application resource occupation returned by the access network resource management device.
  • the application server agrees to the service.
  • Steps 606-607 The access network resource management device updates the link data table in its own database after agreeing to the request for resource occupation of the online service, and obtains the service according to the service type of the online service.
  • the corresponding QoS rule sends the QoS rule to the BAS, and the BAS receives and executes the QoS rule delivered by the access network resource management device.
  • the specific method for the access network resource management device to update the link data table in the database is: in the link data table, according to the link that the service passes, in the entry corresponding to the required link, The occupied bandwidth plus the bandwidth occupied by the service request gets the new occupied bandwidth and updates the remaining bandwidth in the entry accordingly.
  • Step 608 The service terminal sends the service with the QoS requirement to the backbone network through the broadband access network.
  • Steps 609 to 610 When the service with the QoS requirement sent by the service terminal ends, The service terminal sends a request for the application to remove the call connection to the application server. After receiving the request for the disconnection of the call connection sent by the service terminal, the application server requests the access network resource management device to release the service occupation for the service of the disconnected call. resource of.
  • Steps 611 ⁇ 612 The access network resource management device releases the resources occupied by the service, updates the database, and instructs the B AS to delete the QoS rule used by the service, and the BAS deletes the QoS rule used by the service.
  • the update database is: in the link data table, for all the links used by the service, the bandwidth occupied by the service is subtracted from the occupied bandwidth in the entry corresponding to each link, And correspondingly update the remaining bandwidth corresponding to the link.
  • Steps 613 to 614 The access network resource management device returns an application to release the resource result to the application server. After receiving the result of releasing the resource, the application server notifies the service terminal to tear down the connection.

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Description

保障多业务服务质量的资源管理设备、 接入系统及方法 技术领域
本发明涉及网络接入技术, 尤指一种保障多业务月良务质量的资源管 理设备、 接入系统及方法。 发明背景
图 1为现有技术中接入网络的系统结构示意图, 包括业务终端 11、 宽带接入网络 12、 骨干网 13。 业务终端 11为用户上网过程中使用的终 端设备、 业务发起设备, 例如: 有线电视、 会话发起协议(SIP ) 电话、 机顶盒(STB )、 及便携式电脑。 在宽带接入网络 12中包括: 用户接入 设备、 网络汇聚设备、 宽带接入服务器(BAS )。 在宽带接入网絡 12中, 用户接入设备连接业务终端和网络汇聚设备, 实现了用户线路汇接功 能; 网络汇聚设备连接用户接入设备和 BAS; BAS实现业务接入骨干网 13的功能。 由于宽带接入网络 12中拓朴结构复杂, 用户接入设备、 网 络汇聚设备和 BAS之间的连接关系复杂,在不同的应用场合下表现为不 同的拓朴结构, 可能是星形、 树形、 环形或者链形, 或者是不同拓朴结 构的組合, 因此在图 1所示的结构图中没有详细的指明各网络设备之间 的具体连接。
由于在宽带接入网络的建设初期, 用户的上网业务基本为普通上网 业务, 并且同时考虑到成本以及用户数量有限等因素, 致使当时宽带接 入网络中的接入设备对所有的数据包均采用尽力而为(Best Effort )的转 发方式, 不区分业务的种类。 这里, 所指的接入设备为宽带接入网络中 的用户接入设备、 网络汇聚设备以及 BAS。 由于在宽带接入网络中使用 的是 Best Effort转发方式, 因此在用户接入设备以及网络汇聚设备处发 生拥塞是不可避免的。 同时, 由于当时网络设计并没有考虑日后会支持 有服务质量( QoS )需求的实时业务应用, 因此也无法为业务提供有 QoS 保障的服务。 对网络运营商来说, 由于没有能力向用户保障上网业务的 月良务质量, 因此也无法向用户收取足够的费用。
为了保障具有 QoS需求的业务服务质量,现有技术中还存在如下一 种技术手段, 具体为: 宽带接入网絡为网絡中的每个接入设备预留足够 的带宽, 并同时对接入设备新增业务量进行控制, 根据该网络设备预留 的带宽以及业务的 QoS要求, 人为限制该网络实时业务的最大开户数。 在这种技术方案中, 在为每个接入设备预留带宽的时候, 通常根据该接 入设备的最大并发用户数及最大高等级业务速率来进行估计预留, 因此 无法实现业务收敛; 并且由于在预留带宽时, 最大用户数以及业务种类 都已经预先确定, 也不适宜扩展用户及业务, 尤其在一些高等级业务。 例如, 即时视讯(VOD ) "虚拟话务量"很低, 但预留带宽占用很大时, 因此造成了网络资源的极大浪费。 发明内容
有鉴于此, 本发明的主要目的在于提供一种保障多业务服务质量的 接入系统, 使用该系统可以保障多业务的服务质量。
本发明的另一主要目的在于提供一种保障多业务服务质量的资源 管理设备, 应用该资源管理设备可以保障多业务的服务质量。
本发明的又一主要目的在于提供一种保障多业务服务质量的方法, 应用该方法可以保障多业务的服务质量。
为达到上述目的, 本发明的技术方案是这样实现的:
本发明提供了一种保障多业务服务质量的接入系统, 该系统至少包 括; 业务终端, 用于通过接入网络向应用服务器, 为有服务质量要求的 业务申请建立连接;
应用服务器, 用于根据申请业务所需的资源, 向接入网资源管理设 备申请占用资^;
接入网资源管理设备, 用于接收应用服务器占用资源的申请, 确定 业务在接入网络内所需经过的从用户接入设备到 BAS的链路,并根据所 需链路是否均有足够的可用资源, 确定建立连接或拒绝所述业务。
较佳地, 所述接入网资源管理设备, 根据业务所需占用各链路的资 源确定是否均有足够的资源供业务使用, 并向应用服务器返回申请资源 占用的结果;
所述应用服务器, 根据接入网资源管理设备返回的结果向业务终端 返回申请建立连接的结果。
较佳地, 所述接入网资源管理设备: 用于为每个具有服务质量要求 的业务设置 QoS规则,将业务对应的 QoS规则发送给 B AS、或指示 BAS 删除业务对应的 QoS规则;
所述 BAS, 执行或删除接入网资源管理设备下发的 QoS规则。 较佳地,所述接入网资源管理设备包括数据库单元和管理控制单元; 所述数据库单元, 用于记录用户接入设备到 BAS之间的所有链路, 以及各条链路的资源情况, 接受管理控制单元对各条链路资源占用情况 的修改;
所述管理控制单元, 用于接收应用服务器占用资源或释放资源的申 请,确定业务从用户接入设备到 BAS所需经过的链路,并根据所需链路 是否均有足够的可用资源, 确定建立连接或拒绝所述业务。
较佳地, 所述管理控制单元, 根据业务所需占用各链路的资源确定 是否有足够的资源供业务使用, 并向应用服务器返回申请资源占用的结 果。
较佳地, 所述数据库单元, 进一步记录为每个具有服务质量要求的 业务设置的 QoS规则;
所述管理控制单元,将业务对应的 QoS规则发送给 BAS或指示 BAS 删除业务对应的 QoS规则。
另外, 本发明还提供了一种保障多业务服务质量的接入网资源管理 设备, 所述接入网资源管理设备包括数据库单元和管理控制单元;
所述数据库单元, 用于记录用户接入设备到 BAS之间的所有链路, 以及各条链路的资源情况, 接受管理控制单元对各条链路资源占用情况 的修改;
所述管理控制单元, 用于接收应用服务器占用資源或释放资源的申 请,确定业务从用户接入设备到 BAS所需经过的链路,并根据所需链路 是否均有足够的可用资源, 确定建立连接或拒绝所述业务。
较佳地, 所述管理控制单元, 根据业务所需占用各链路的资源确定 是否有足够的资源供业务使用, 并向应用服务器返回申请资源占用的结 果。
较佳地, 所述数据库单元, 进一步记录了为每个具有服务盾量要求 的业务设置的 QoS规则;
所述管理控制单元,将业务对应的 QoS规则发送给 BAS或指示 BAS 删除业务对应的 QoS规则。
同时, 本发明还提供了一种保障多业务服务质量的方法, 在接入系 统中设置接入网资源管理设备, 并在接入网资源管理设备中记录用户接 入设备到 BAS之间的各链路以及对应资源, 该方法包括以下步驟:
A、 当业务终端发起具有服务质量要求的业务时, 向应用服务器申 请建立连接, 应用服务器根据当前业务所需资源向接入网资源管理设备 申请占用资源;
B、 接入网资源管理设备确定当前业务从用户接入设备到 BAS所需 的链路, 并根据记录各链路的资源, 判断当前业务所需链路是否均有足 够的可用资源, 如果有, 建立连接; 否则, 拒绝当前业务。
较佳地, 在接入网资源管理设备内设置节点数据表, 预先将接入网 络的网络拓朴结构树形化, 根据树形化后的网絡拓朴结构在节点数据表 中记录各用户接入设备到 BAS的链路, 步骤 B中所述确定当前业务从 用户接入设备到 BAS所需经过的链路为:
确定业务接入的用户接入设备, 才艮据接入的用户接入设备查找节点 数据表确定当前业务从用户接入设备到 BAS所需经过的链路。
较佳地, 所述将接入网络的网络拓朴结构树形化为: 将接入网络中 的共享环和非共享环树形化, 而将接入网络中的其它拓朴结构保持不 变。
较佳地, 所述共享环树形化为: 共享环上的各网络设备共享一条链 路, 并接入到接入设备上。
较佳地, 所述非共享环树形化为: 使非共享环上的各网络设备分别 与接入设备相连, 各网络设备按比例分享原非共享环上的资源。
较佳地, 在接入网资源管理设备内设置链路数据表, 所述记录用户 接入设备到 BAS之间各链路的资源为:在链路数据表内记录用户接入设 备到 BAS之间各链路的资源;
步骤 B中所述判断当前业务所需的链路是否均有足够的资源为, 根 据当前业务所需占用的链路, .在链路数据表内查找得到当前需占用链路 的可用资源, 才艮据业务所需的资源判断当前业务所需占用的链路的可用 资源是否均有业务所需的资源, 如果有, 建立连接; 否则, 拒绝当前业 务。 较佳地, 步骤 B中, 建立连接之前进一步包括: 接入网资源管理设 备向应用服务器返回同意当前业务资源占用的消息, 应用服务器通过接 入网络向业务终端返回同意当前业务接入的消息。
较佳地, 步骤 B中所述拒绝当前业务为: 接入网资源管理设备向应 用服务器返回不同意当前业务资源占用的消息, 应用服务器通过接入网 络向业务终端返回不同意当前珠务接入的消息。
较佳地, 步驟 B中当当前业务所需链路均有足够的可用资源时, 进 一步包括: 当前业务占用所需链路的资源;
步骤 B之后, 该方法进一步包括:
C、 当业务结束时, 业务终端向应用服务器申请拆除连接; 应用服 务器指示接入网资源管理设备释放当前业务占用的资源; 并和接入网资 源管理设备以及 BAS拆除当前业务的连接。
较佳地, 进一步在接入网资源管理设备为每个具有服务质量要求的 业务设置 QoS规则;
步骤 B中所述建立连接, 包括以下步骤:
Bl、接入网资源管理设备根据当前业务, 查找自身设置的 QoS规则 得到与当前业务相应的 QoS规则;
B2、 将 QoS规则下发给接入网络中的 BAS, BAS执行 QoS规则。 较佳地, 步骤 C中所述拆除当前业务的连接, 包括以下步骤:
Cl、 接入网资源管理设备指示 BAS删除当前拆除连接业务的 QoS 规则;
C2、 接入网资源管理设备向应用服务器返回幹放资源的结果; C3、 应用服务器通过接入网络通知业务终端拆除当前业务的连接。 本发明所提供的一种保障多业务服务质量的接入系统, 通过在接入 系统中新增接入网资源管理设备, 根据请求接入业务所需占用的带宽, 决定是否同意该业务接入, 实现了业务收敛比, 保障了多业务的服务质 量。
另外, 本发明所提供的一种保障多业务服务质量的接入网资源管理 设备, 通过与宽带接入网络及骨干网配合, 根据请求接入业务所经过的 链路以及所需的资源, 决定是否同意该业务的资源占用请求, 在资源可 用的情况下, 同意该业务接入, 从而实现了业务收敛比、 保障了多业务 服务质量。
再者, 本发明所提供的一种保障多业务服务质量的方法, 通过在发 起具有 QoS需求的业务时, 向接入网络申请资源占用, 在资源可用的情 况下, 接入网络才允许业务接入, 从而实现了业务收敛比, 保障了多业 务的服务质量。 附图简要说明
图 1为现有技术中接入系统的结构图;
图 2为本发明中接入系统的结构图;
图 3为本发明中接入网资源管理设备的结构图;
图 4为共享环树形化的示意图;
图 5为非共享环树形^ ί 的示意图;
图 6为本发明方法的流程图。 实施本发明的方式
本发明的核心思想是: 在接入系统中新增接入网资源管理设备, 用 于管理接入网络中的拓朴结构以及网络资源。当需要有 QoS保障的业务 欲接入网络时, 首先由业务终端通过应用服务器向接入网资源管理设备 申请资源占用, 接入网资源管理设备根据数据库中记录资源的数据, 判 断是否有足够的资源可用, 并将判断结果通知应用服务器, 应用服务器 根据申请占用资源及判断结果决定是否接受该业务的接入。
在本发明中, 所述有 QoS要求的业务是指: 实时业务、 或其他一些 需要有质量保证的上网业务。 另外, 在本发明中所涉及的資源主要为链 路资源, 其中又以链路资源中带宽为例进行说明。
为使本发明的目的、 技术方案及优点更加清楚明白, 以下参照附图 并举实施例, 对本发明做进一步的详细说明。
图 2为本发明接入系统的结构图, 包括: 业务终端 11、 宽带接入网 络 12、 骨干网 13、 接入网资源管理设备 24和应用服务器 25, 其中实线 表示物理上的连接, 虚线表示网络设备之间的信令连接。
当业务终端 11发起有 QoS要求的业务时, 则通过宽带接入网络 12 及骨干网 13向应用服务器 25发送的申请建立呼叫连接请求。
应用服务器 25, 如软交换设备, 通过骨干网 13连接于 BAS, 并通 过 BAS及骨干网 13建立与接入网资源管理设备 24之间的信令连接,用 于接收业务终端 11通过宽带接入网絡 12及骨干网 13发送的申请建立 呼叫连接请求, 并针对该业务终端 11 发起的业务向接入网资源管理设 备 24发送申请占用资源的请求, 根据接入网资源管理设备 24返回的申 请占用资源结果向业务终端返回申请建立呼叫的结果; 接收业务终端发 送的申请拆除呼叫连接的请求, 并向接入网资源管理设备 24 为该业务 终端发送申请释放资源的请求, 根据接入网资源管理设备 24返回申请 释放资源的结果, 拆除业务终端与自身的连接。
接入网资源管理设备 24的内部结构图如图 3所示,包括数据库单元 31和管理控制单元 32, 具体介绍如下:
在接入网资源管理设备 24的数据库单元 31中设置节点数据表以及 链路数据表。节点数据表,用于记录用户接入设备到 BAS所需经过的链 路。 链路数据表, 用于记录用户接入设备到 BAS之间所有链路的资源, 包括各链路的总资源、 已占用资源以及剩余资源。 节点数据表的具体内 容如表一所示; 链路数据表的具体内容如表二所示, 这里用带宽来表示 链路的资源情况。
Figure imgf000011_0001
Figure imgf000011_0002
表二
在数据库单元 31中, 除需设置节点数据表和链路数据表之外,还需 设置各种业务所对应的 QoS规则, 这里所指的各种业务为: 具有 QoS 需求的业务。
管理控制单元 32, 用于接收应用服务器 25发送来的业务终端 11申 请占用资源的请求, 确定该请求是从哪个用户接入设备发送来的, 从而 确定该请求所对应业务到达 BAS所需经过的链路。在得到该业务所需经 过的链路之后, 检查数据库单元 31 中链路的资源占用情况, 如果检查 得到该业务所需经过的链路均有可用资源, 则同意应用服务器 25发送 来的占用资源申请, 如果检查到业务终端 11到达 BAS所经过链路的其 中任意一条不具有业务终端 11 所需的资源, 则拒绝资源占用申请。 在 同意资源占用的前提下, 管理控制单元 32才艮据申请业务的类型查找得 到该业务所对应的 QoS规则, 并向 BAS下发该业务的 QoS规则, 并根 据业务所占用的资源更新数据库单元 31 中记录的该链路的资源占用情 况, 更新已占用资源为: 在已占用资源上加上此次申请占用的资源。
管理控制单元 32, 还用于接收应用服务器 25发送来的申请释放资 源的请求, 根据申请释放资源的业务所使用的链路, 更新数据库单元 31 中记录的链路的资源占用情况, 并指示 BAS删除该业务使用的 QoS规 则、 向应用服务器 25 返回申请释放资源结果。 这里, 更新数据库单元 31的方法为,在链路数据表中的已占用资源上加上此次结束此次业务所 释放的资源, 并按照剩余资源等于总资源减去已占用资源的方法, 相应 的修改链路数据表中的剩余资源。
由于在本实施例的具体实施过程中, 接入网资源管理设备需要知道 业务通过用户接入设备到 BAS所经过的链路,因此在实施本发明所提供 的方法之前, 还需要根据宽带接入网络中的拓朴结构, 在接入网资源管 理设备的数据库单元中预先存储所有用户接入设备到 BAS之间的链路。
宽带接入网络的拓朴结构复杂, 除了可能包括树形、 星形、 链形之 外, 还可能包括环形。 其中, 由于星形、 链形都是树形的特殊形式, 因 此对于树形、 星形及链形可以按照树形拓朴结构得到用户接入设备到 BAS之间的链路。 而对于环形拓朴, 由于用户接入设备通过环形拓朴结 构访问 BAS链路的不确定性, 因此无法像树形结构那样,按照树形结构 的拓朴直接得到用户接入设备到 BAS之间的链路。
因此在宽带接入网中包含环形拓朴的情况下,在设置节点数据表时, 需要预先对宽带接入网络中的环形拓朴进行树形化, 使整个网络都表现 为树形拓朴,再按照树形拓朴结构记录用户接入设备到 BAS之间所有可 能的链路。
环形拓朴树形化的方法如下: 环形拓朴又分为共享环和非共享环, 在共享环上的网絡设备均共同分享共享环上的资源; 在非共享环上, 网 络设备则是按照一定的比例占有共享环上的资源。 所述的共享环可以 是: 快速生成树协议(RSTP )、 弹性分组环(RPR )或共享环(VP-Ring ) 等; 所述的非共享环可以是: 同步数字系列 (SDH )或多协议标签交换 ( MPLS )等。
图 4为共享环树形化的示意图,在图 4中以网络汇聚设备和 BAS为 例进行说明。 如图 4所示, 网络汇聚设备 A、 B、 C、 D和 BAS在共享 环树形化之前, 都位于共享环上; 在共享环树形化时, 引入虚拟链路, 将网络汇聚设备 、 B、 C和 D视为共享一条虚拟链路,接入到 BAS上, 共享环树形化后, 网络汇聚设备 A、 B、 C和 D共同分享网络汇聚设备 和 BAS之间的资源。
图 5为非共享环树形化的示意图, 在图 5中同样以网络汇聚设备和 BAS为例进行说明。 如图 5所示, 网络汇聚设备 A、 B、 C、 D和 BAS 在非共享环树形化之前, 均位于非共享环上; 在非共享环树形化时, 将 网络汇聚设备 A、 B、 C和 D分别与 BAS相连, 而各网络汇聚设备与 BAS 之间的资源则按照网络汇聚设备原先占有的非共享环上链路的资 源进行分配, 树形化后得到如图 5所示的拓朴结构。 这里, 非共享环上 的网络汇聚设备在树形化后, 占用非共享环资源的比例也可以不按照原 先该网络汇聚设备占用的比例进衧分配, 而是可以根据当前网络环境的 要求, 重新进行分配。
如图 4和 5所示,在共享环和非共享环上处于 BAS地位的网络设备 可以称为该共享环和非共享环的接入设备; 处于网络汇聚设备地位的网 络设备则可以直接称为该共享环和非共享环的网络设备。
当网络汇聚设备和用户接入设备之间存在坏形拓朴时, 也可以按照 如图 4和图 5所示的方法, 对环形拓朴进行树形化。 此时, 网络汇聚设 备则成为共享环和非共享环的接入设备, 用户接入设备则成为共享环和 非共享环的网络设备。
当接入网资源管理设备预先按照网络的拓朴结构设置了节点数据 表、 链路数据表、 以及各业务所对应的 QoS规则之后, 则可按照如图 6 所示的流程完成本发明所提出的方法。 在本实施例方法的介绍中, 选择 链路带宽来表征链路的资源, 具体过程如下:
步骤 601 : 当业务终端发起具有 QoS需求的业务时, 业务终端则向 应用服务器发送申请建立呼叫连接的请求, 其中携带此次业务所需秀占 用的带宽以及此次业务的类型。
当业务终端发起的是不具有 QoS需求的普通上网业务时, 则按照现 有技术的流程完成普通上网业务, 而不执行本流程。
步骤 602: 应用服务器接收到业务终端发送来的申请建立呼叫连接 的请求后, 则向接入网资源管理设备为此次上网业务申请占用资源, 申 请中携带此次上网业务所需要使用的带宽以及当前上网业务的业务类 型。
步驟 603: 接入网资源管理设备接收到应用服务器发送来的申请占 用资源请求后, 首先确定此次上网业务是从哪个用户接入设备接入的, 在确定了此次业务的用户接入设备后, 查找自身的节点数据表, 得到该 用户接入设备到 BAS 所需要经过的链路; 再根据此次业务所需要的带 宽, 在链路数据表中查找此次业务所需经过的链路是否均有足够的带 宽, 如果有, 则同意此次业务的申请占用资源的请求; 如果任意一条需 要经过的链路没有足够的带宽, 则不同意此次业务的申请占用资源的请 求。
这里, 具体确定此次上网业务是从那个用户接入设备接入的方法可 以根据现有技术中宽带用户定位的手段以及其它手段进行。 其中, 具体判断链路上是否有足够的带宽的过程为: 判断链路上的 剩余带宽是否大于或等于该业务所需要的带宽, 如果是, 则该条链路上 有足够的带宽供该业务使用; 否则, 该条链路上没有足够的带宽供该业 务使用。
步骤 604: 接入网资源管理设备向应用服务器返回申请占用资源的 结果, 当接入网资源管理设备在步骤 603中同意了此次业务申请占用资 源的请求, 则向应用服务器返回同意占用资源结果, 执行步驟 606; 如 果接入网资源管理设备在步骤 603中没有同意此次业务申请占用资源的 请求, 则向应用服务器返回拒绝申请占用资源的请求。
步骤 605: 应用服务器根据接入网资源管理设备返回的申请占用资 源的结果, 向业务终端返回申请建立呼叫的结果, 当接入网资源管理设 备同意了业务占用资源的请求, 则应用服务器同意业务终端申请的业务 接入; 当接入网资源管理设备没有同意业务占用资源的请求, 则应用服 务器拒绝业务终端申请的业务接入。
步骤 606~607: 接入网资源管理设备在同意此次上网业务的申请占 用资源的请求后, 更新自身数据库中的链路数据表, 并根据此次上网业 务的业务类型查找数据库得到该业务的所对应的 QoS规则, 向 BAS下 发该 QoS规则, BAS接收并执行接入网资源管理设备下发的 QoS规则。
其中, 接入网资源管理设备更新自身数据库中链路数据表的具体方 法为: 在链路数据表中根据此次业务所经过的链路, 在所需经过链路对 应的表项中, 将已占用带宽加上此次业务申请占用的带宽得到新的已占 用带宽, 并相应更新表项中的剩余带宽。
步骤 608: 业务终端发送具有 QoS需求的业务^ =艮文通过宽带接入网 络接入骨干网。
步骤 609〜610: 当业务终端所发送的具有 QoS需求的业务结束时, 业务终端则向应用服务器发送申请拆除呼叫连接的请求; 应用服务器收 到业务终端发送来的申请拆除呼叫连接的请求后, 针对此次拆除呼叫的 业务向接入网资源管理设备申请释放该业务占用的资源。
步驟 611~612: 接入网资源管理设备释放该业务所占用的资源, 更 新数据库; 并指示 B AS删除该业务所使用的 QoS规则, BAS删除该业 务所使用的 QoS规则。 这里, 所述的更新数据库为: 在链路数据表中, 针对该业务使用的所有链路, 在每个链路所对应表项中的已占用带宽上 减去此次业务所占用的带宽, 并相应的更新该链路所对应的剩余带宽。
步骤 613〜614: 接入网资源管理设备向应用服务器返回申请释放资 源结果; 应用服务器收到释放资源的结果后, 通知业务终端拆除连接。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的 保护范围。

Claims

权利要求书
1、一种保障多业务服务质量的接入系统, 其特征在于, 该系统至少 包括;
业务终端, 用于通过接入网络向应用服务器, 为有服务质量要求的 业务申请建立连接;
应用服务器, 用于根据申请业务所需的资源, 向接入网资源管理设 备申请占用资源;
接入网资源管理设备, 用于接收应用服务器占用资源的申请, 确定 业务在接入网絡内所需经过的从用户接入设备到 BAS的链路,并根据所 需链路是否均有足够的可用资源, 确定建立连接或拒绝所述业务。
2、根据权利要求 1所述的系统, 其特征在于, 所述接入网资源管理 设备, 根据业务所需占用各链路的资源确定是否均有足够的资源供业务 使用, 并向应用服务器返回申请资源占用的结果;
所述应用服务器, 根据接入网资源管.理设备返回的结果向业务终端 返回申请建立连接的结果。
3、根据权利要求 1或 2所述的系统, 其特征在于, 所述接入网资源 管理设备: 用于为每个具有服务质量要求的业务设置 QoS规则, 将业务 对应的 QoS规则发送给 BAS、 或指示 BAS删除业务对应的 QoS规则; 所述 BAS, 执行或删除接入网资源管理设备下发的 QoS规则。
4、根据权利要求 1所述的系统, 其特征在于, 所述接入网资源管理 设备包括数据库单元和管理控制单元;
所述数据库单元, 用于记录用户接入设备到 BAS之间的所有链路, 以及各条链路的资源情况, 接受管理控制单元对各条链路资源占用情况 的 改; 所述管理控制单元, 用于接收应用服务器占用资源或释放资源的申 请,确定业务从用户接入设备到 BAS所需经过的链路,并根据所需链路 是否均有足够的可用资源, 确定建立连接或拒绝所述业务。
5、 根据权利要求 4所述的系统, 其特征在于, 所述管理控制单元, 根据业务所需占用各链路的资源确定是否有足够的资源供业务使用, 并 向应用服务器返回申请资源占用的结果。
6、根据权利要求 4或 5所述的系统,其特征在于,所述数据库单元, 进一步记录为每个具有服务质量要求的业务设置的 QoS规则;
所述管理控制单元,将业务对应的 QoS规则发送给 BAS或指示 BAS 删除业务对应的 QoS规则。
7、 一种保障多业务服务质量的接入网资源管理设备, 其特征在于, 所述接入网资源管理设备包括数据库单元和管理控制单元;
所述数据库单元, 用于记录用户接入设备到 BAS之间的所有链路, 以及各条链路的资源情况, 接受管理控制单元对各条链路资源占用情况 的^ [ 改;
所述管理控制单元, 用于接收应用服务器占用资源或释放资源的申 请,确定业务从用户接入设备到 BAS所需经过的链路,并根据所需链路 是否均有足够的可用资源, 确定建立连接或拒绝所述业务。
8、 根据权利要求 7所述的设备, 其特征在于, 所述管理控制单元, 根据业务所需占用各链路的资源确定是否有足够的资源供业务使用, 并 向应用服务器返回申请资源占用的结果。
9、根据权利要求 7或 8所述的设备,其特征在于,所述数据库单元, 进一步记录了为每个具有服务质量要求的业务设置的 QoS规则;
所述管理控制单元,将业务对应的 QoS规则发送给 BAS或指示 BAS 删除业务对应的 QoS规则。
10、 一种保障多业务服务质量的方法, 其特征在于, 在接入系统中 设置接入网资源管理设备, 并在接入网资源管理设备中记录用户接入设 备到 BAS之间的各链路以及对应资源, 该方法包括以下步骤:
A、 当业务终端发起具有服务盾量要求的业务时, 向应用服务器申 请建立连接, 应用服务器根据当前业务所需资源向接入网资源管理设备 申请占用资源;
B、 接入网资源管理设备确定当前业务从用户接入设备到 BAS所需 的链路, 并根据记录各链路的资源, 判断当前业务所需链路是否均有足 够的可用资源, 如果有, 建立连接; 否则, 拒绝当前业务。
11、根据权利要求 10所述的方法, 其特征在于, 在接入网资源管理 设备内设置节点数据表, 预先将接入网络的网络拓朴结构树形化, 根据 树形化后的网络拓朴结构在节点数据表中记录各用户接入设备到 B AS 的链路, 步驟 B中所述确定当前业务从用户接入设备到 BAS所需经过 的链路为:
确定业务接入的用户接入设备, 根据接入的用户接入设备查找节点 数据表确定当前业务从用户接入设备到 BAS所需经过的链路。
12、根据权利要求 11所述的方法, 其特征在于, 所述将接入网络的 网络拓朴结构树形化为: 将接入网络中的共享环和非共享环树形化, 而 将接入网络中的其它拓朴结构保持不变。
13、根据权利要求 12所述的方法, 其特征在于, 所述共享环树形化 为: 共享环上的各网络设备共享一条链路, 并接入到接入设备上。
14、根据权利要求 12所述的方法, 其特征在于, 所述非共享环树形 化为: 使非共享环上的各网络设备分别与接入设备相连, 各网络设备按 比例分享原非共享环上的资源。
15、根据权利要求 10所述的方法, 其特征在于, 在接入网资源管理 设备内设置链路数据表,所述记录用户接入设备到 BAS之间各链路的资 源为: 在链路数据表内记录用户接入设备到 BAS之间各链路的资源; 步骤 B中所述判断当前业务所需的链路是否均有足够的资源为, 根 据当前业务所需占用的链路, 在链路数据表内查找得到当前需占用链路 的可用资源 , 据业务所需的资源判断当前业务所需占用的链路的可用 资源是否均有业务所需的资源, 如果有, 建立连接; 否则, 拒绝当前业 务。
16、 根据权利要求 10所述的方法, 其特征在于, 步驟 B中, 建立 连接之前进一步包括: 接入网资源管理设备向应用服务器返回同意当前 业务资源占用的消息, 应用服务器通过接入网络向业务终端返回同意当 前业务接入的消息。
17、 稂据权利要求 10、 15或 16所述的方法, 其特征在于, 步驟 B 中所述拒绝当前业务为: 接入网资源管理设备向应用服务器返回不同意 当前业务资源占用的消息, 应用服务器通过接入网络向业务终端返回不 同意当前业务接入的消息。
18、 根据权利要求 10所述的方法, 其特征在于, 步骤 B中当当前 业务所需链路均有足够的可用资源时, 进一步包括: 当前业务占用所需 链路的资源;
步骤 B之后, 该方法进一步包括:
C、 当业务结束时, 业务终端向应用服务器申请拆除连接; 应用服 务器指示接入网资源管理设备释放当前业务占用的资源; 并和接入网资 源管理设备以及 BAS拆除当前业务的连接。
19、根据权利要求 18所述的方法, 其特征在于, 进一步在接入网资 源管理设备为每个具有服务质量要求的业务设置 QoS规则;
步骤 B中所述建立连接, 包括以下步骤: Bl、接入网资源管理设备根据当前业务, 查找自身设置的 QoS规则 得到与当前业务相应的 QoS规则;
B2、 将 QoS规则下发给接入网络中的 BAS, BAS执行 QoS规则。
20、 根据权利要求 19所述的方法, 其特征在于, 步骤 C中所述拆 除当前业务的连接, 包括以下步骤:
Cl、 接入网资源管理设备指示 BAS删除当前拆除连接业务的 QoS 规则;
C2、 接入网资源管理设备向应用服务器返回译放资源的结果;
C3、 应用服务器通过接入网络通知业务终端拆除当前业务的连接。
PCT/CN2006/003329 2006-01-20 2006-12-07 Procédé de qualité de service (qos) garantie, dispositif de gestion de ressources et système d'accès multi-services WO2007082448A1 (fr)

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CN1859250A (zh) 2006-11-08
EP1976184A1 (en) 2008-10-01
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EP1976184B1 (en) 2017-07-26
CN101160805B (zh) 2010-08-11
CN100433682C (zh) 2008-11-12

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