WO2007073690A1 - Worldwide interoperability for microwave access system and service flow arrangement method in the system - Google Patents
Worldwide interoperability for microwave access system and service flow arrangement method in the system Download PDFInfo
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- WO2007073690A1 WO2007073690A1 PCT/CN2006/003602 CN2006003602W WO2007073690A1 WO 2007073690 A1 WO2007073690 A1 WO 2007073690A1 CN 2006003602 W CN2006003602 W CN 2006003602W WO 2007073690 A1 WO2007073690 A1 WO 2007073690A1
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- 230000001960 triggered effect Effects 0.000 claims abstract description 22
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- 238000013475 authorization Methods 0.000 claims abstract description 8
- 230000004044 response Effects 0.000 claims description 29
- 238000012986 modification Methods 0.000 claims description 11
- 230000004048 modification Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 10
- 238000012217 deletion Methods 0.000 claims description 10
- 230000037430 deletion Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 abstract description 36
- 238000005516 engineering process Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
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- 238000004891 communication Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
Definitions
- the present invention relates to the technology of Worldwide Interoperability for Microwave Access (WiMax), and more particularly to a WiMAX system and a service flow configuration method in the system. Background of the invention
- WiMAX technology is a broadband wireless access standard based on the 802.16 protocol that provides high-speed connectivity to the Internet. Unlike 3G systems, WiMax systems use IP packet switching technology entirely, without the need for voice-oriented circuit switching. Based on the above characteristics, the voice communication supported by the WiMax system adopts the VoIP method.
- WiMax systems can carry multiple types of services, such as voice, video, HTTP, and email, and the quality of service (QoS) requirements vary from service to service
- QoS quality of service
- WiMAX systems use different service flows for the same mobile.
- the terminal (MS/MSS) provides different types of services.
- the service flow is divided according to packet information, such as a source address, a destination address, a port number, or a protocol number, and each service flow has a specified QoS parameter for guaranteeing the service quality of the service provided by the service flow.
- Each service flow is provided with an identifier indicating the service flow and its QoS parameters and the like.
- Delete At the end of an application, the service stream that supports the app is deleted.
- network nodes that support and process service flows mainly include: Service Flow Management (SFM), Service Flow Authorization Module
- the SFM is set on the base station side, and is configured to perform related operations on the service flow according to local radio resources.
- the SFA is used to perform an approval operation on the service flow according to the local policy.
- the module is further divided into a service SFA (Serving SFA) and an anchor SFA (Anchor SFA).
- the PF is located at the CSN and is used to store user information and control the QoS parameters of the service flow.
- the PD process is implemented by using a Policy Decision (PD) message, which is used to set a service policy of the service flow, where the PD.
- the message includes a PD-Request and a Policy-Response (PD-Response).
- the RR process is implemented by using a Resource Reservation (RR) message, and is used to reserve resources required for a service flow of a certain MS/MSS, where the RR message includes a resource reservation request (RR-Request) and a resource. Reserve response (RR-Response).
- RR Resource Reservation
- FIG 1 shows the specific process of the prior art policy decision (PD), including the following steps:
- Step 101 The SFM is triggered to issue a PD-Request to the serving SFA.
- the PD-Request explicitly contains QoS parameters, or is set to a service type name.
- the reason why the SFM is triggered is diverse. For example, MS/MSS sends a request to SFM, or SFM receives a dynamic service flow modification (Dynamic Service Flow) Modification) instructions, etc.
- MS/MSS sends a request to SFM
- SFM receives a dynamic service flow modification (Dynamic Service Flow) Modification) instructions, etc.
- Steps 102 to 103 After receiving the PD-Request, the serving SFA is triggered to issue a PD-Request to the anchor SFA, and then the PD-Request is sent by the anchor SFA to the network service provider (NSP, Network Service) to which the MS/MSS belongs. Provider) PF.
- NSP Network Service
- Step 104 After receiving the PD-Request, the PF performs service flow configuration, and responds to the anchor SFA by using a policy decision response (PD-Response).
- PD-Response a policy decision response
- Steps 105 to 106 Anchor Point After receiving the PD-Response, the SF A is triggered to issue a PD-Response to the serving SFA, and then the PD-Response is sent to the SFM by the serving SFA, and the process of the policy decision ends.
- Table 1 shows the field format of the PD message transmitted between the PF and the SFA in the prior art.
- Table 2 shows the field format of the PD message transmitted between the SFA and the SFM in the prior art.
- Both the PD-Request and the PD-Response sent in the above process contain a Decision Action field for passing the type of operation of the service flow configuration between network nodes.
- network nodes such as SFM, Serving SFA, Anchor SFA, and PF are connected step by step.
- SFM sends a PD-Request to the serving SFA
- the service SFA is referred to as the downstream node of the PD-Request signaling of the SFM.
- the service SFA sends a PD-Response to the SFM, which is called the PD-Response signaling downstream node of the service SFA.
- FIG. 2 shows the specific process of resource reservation (RR) in the prior art, including the following steps:
- Step 201 The PF sends an R-Request to the Anchor SFA, requesting to reserve resources for a service flow.
- the RR-Request requires execution of operations such as creation, activation, or deletion of a service flow.
- Steps 202 to 203 After receiving the RR-Request, the Anchor SFA performs an application configuration (Apply Profile) and sends an RR-Request to the Serving according to the local policy.
- an application configuration Apply Profile
- the Serving SFA sends an RR-Request to the SFM.
- Step 204 After receiving the RR-Request, the SFM performs application permission control (Apply
- Steps 205 to 206 After receiving the RR-Response, the Serving SFA sends the RR-Response to the Anchor SFA, and then sends the RR-Response to the PF by the Anchor SFA.
- the resource reservation process ends.
- Table 3 shows the field format of the RR message transmitted between the PF and the SFA in the prior art.
- Table 4 shows the field format of the RR message transmitted between the SFA and the SFM in the prior art, and the message direction parameter.
- the service flow configuration is performed for a specific service flow.
- a series of network nodes in the WiMAX system such as the service SFA, the anchor SFA, the PF, etc., only after knowing which service flow needs to be configured, correspondingly The operation can be executed.
- the policy specified by the existing protocol determines that the message cannot deliver the indication information of the service flow to be configured, so that the configuration of the service flow cannot be performed correctly.
- the number of service flows in the message can be indirectly known. Will consume unnecessary system resources.
- the PD and/or RR messages may contain variable length data items, or there may be cases where the parameter sets of the service flows are not equal in size, so that the system cannot accurately know the services included in the PD and/or RR messages.
- the number of streams may be used to estimate the services included in the PD and/or RR messages.
- the main object of the present invention is to provide a method for configuring a service flow in a WiMAX system, so that the network node can correctly configure the corresponding service flow.
- a method for configuring a service flow in a global interoperability WiMAX system comprising: setting a flow identification field in a first service flow configuration message in advance, After the first node in the WiMAX system is triggered, the first node generates a first service flow configuration message, records the identifier of the at least one service flow to be configured in a flow identifier field of the message, and then the first service The flow configuration message is sent to the second node downstream of the signaling of the message, and the second node is triggered to perform the service flow configuration.
- a microwave access global interworking WiMAX system includes a service flow management module SFM, a service flow authorization module SFA, and a policy function module PF;
- the SFM is used to determine the operation type of the service flow configuration; if it is a creation operation, the SFM sets the flow identification field of the policy determination request generated by itself to be empty; if it is a modification or deletion operation, the SFM will modify or delete the service flow.
- the service flow identifier is recorded in the flow identifier field of the policy decision request generated by itself, and sent to the SFA;
- the SFA is configured to map the service flow identifier in the policy decision request of the SFM to the flow identifier according to the preset correspondence, and record the flow identifier in the policy decision request generated by the SFA, and send the identifier to the PF.
- a method for configuring a service flow in a global interoperability WiMAX system for microwave access comprising: setting a flow number field in a service flow configuration message in advance, when a WiMAX system After the first node in the first node is triggered, the first node detects the number of service flows to be configured, records them in the number of flows field, and records the parameter sets of each service flow one by one in the service flow configuration message, and then The service flow configuration message is sent to a second node located downstream of the signaling of the message, and the second node is triggered to perform a service flow configuration.
- a microwave access global interworking WiMAX system includes a service flow management module SFM, a service flow authorization module SFA, and a policy function module PF;
- the SFM is configured to set a flow number field of the service flow configuration message generated by itself according to the number of the detected service flows, and save the parameter set of each service flow in the service flow configuration message in sequence, and send the message to the SFA. ;
- the SFA is configured to generate a service flow configuration message, and send the number of service flows and the parameter set of each service flow to the signaling downstream node of the message by using the message;
- the PF is configured to configure each service flow, and records the number of service flows and the parameter set of each service flow in the flow number field of the service flow configuration message generated by itself, and sends the data to the SFA.
- the method for configuring a service flow in the WiMAX system of the present invention sets a flow identification field in a policy decision message, and records an identifier of at least one service flow to be configured, so that the network node can clearly know the QoS parameters.
- the configured service flow so that the corresponding operation is completed correctly.
- the present invention sets a Flow Number field in the policy decision message and/or the resource reservation message for recording the number of service flows to be configured.
- the sender of the above message will detect the service flow of this process before the message is sent, and fill in the number of service flows into the Flow Number field.
- the receiver only needs to read the field to accurately and quickly know the number of service flows configured in the current configuration, so the method improves the processing efficiency of the network node, reduces the network load, and largely Reduce the chance of errors in WiMAX systems.
- FIG. 1 is a specific process of policy determination in the prior art
- FIG. 5 is a specific process of resource reservation in still another embodiment of the present invention. Mode for carrying out the invention
- the service flow configuration method of the present invention carries the identifier of the service flow to be configured in the service flow configuration message, and delivers the service flow configuration message step by step in the WiMAX system, so that any network node of the WiMAX system can correctly execute the service flow. Configuration.
- the service flow configuration message refers to a policy decision (PD) message, a resource reservation (RR) message, and the like.
- the service flow configuration refers to performing operations such as creating, modifying, or deleting a specified service flow in a policy decision process or a resource reservation process.
- a flow identifier field is set in an existing PD message, and is used to record an identifier of a service flow to be configured.
- the network node configures the specified service flow, and records the identifier of the service flow in the flow identification field of the PD message generated by itself, and sends the message to the letter. Let the downstream node trigger the downstream node to perform the configuration of the service flow.
- the service flow configuration method of the present invention carries the number of service flows to be configured in the service flow configuration message, and sets a parameter set for each service flow, and then delivers the service flow configuration message step by step in the WiMAX system.
- a Flow Number field is set in an existing PD message or an RR message, which is used to record the number of service flows to be configured, and a parameter set of each service flow.
- the process of configuring the service flow in one embodiment of the present invention is as follows: As shown in FIG. 3, the following steps are specifically included:
- Step 301 The SFM is triggered to generate a policy decision request (PD-Request), and the service flow identifier (SFID, Service Flow Identification) of the service flow to be configured is recorded in the flow identifier field of the PD-Request, and then the PD-Request is Sent to the service SFA.
- PD-Request policy decision request
- SFID Service Flow Identification
- the SFM is triggered to determine the type of operation. If it is a create operation, the stream identification field of the PD-Request is set to null, and then the PD-Request is issued. If the modification or deletion is performed, the service flow identifier of the service flow to be modified or deleted is recorded in the flow identification field of the PD-Request.
- the SFM is triggered to execute the policy decision, either for resource optimization purposes or for MS/MSS to issue dynamic service flow requests.
- Step 302 After receiving the PD-Request, the service SFA is triggered to send a PD-Request to the anchor SFA, and then the PD-Request is sent by the anchor SFA to the PF.
- the service SFA after receiving the PD-Request of the SFM, maps the SFID in the PD-Request to a flow identifier according to a preset correspondence, and records the flow identifier in its own generated Issued in the PD-Request.
- the flow identification field in the PD-Request sent by the service SFA is also empty because the flow identification field of the PD-Request sent by the SFM is empty.
- the anchor SFA is triggered, the corresponding field of the service SFA is set according to the PD-Request of the service SFA, and a PD-Request is generated and sent to the PF.
- the serving SFA after receiving the PD-Request of the SFM, the serving SFA sets its own corresponding field according to the PD-Request of the SFM, and generates a PD-Request to send to the anchor SFA.
- the anchor SFA After the anchor SFA is triggered, the SFID in the PD-Request is mapped to the flow ID according to the preset correspondence, and the flow identifier is recorded in the PD-Request generated by itself and sent to the PF.
- the service SFA is the signaling upstream node of the anchor SFA.
- the PF is the signaling downstream node of the anchor SFA.
- Step 303 After receiving the PD-Request, the PF configures the service flow indicated by the Flow ID, and returns a policy decision response (PD-Response) to the anchor SFA.
- PD-Response Policy decision response
- the type of operation of the current configuration is determined. If it is a create operation, a flow identifier is generated for the service flow to be created, and the record is sent in the flow identifier field of the PD-Response. If it is a modification or deletion operation, the flow identification record of the service flow to be modified or deleted is sent in the flow identification field of the PD-Response.
- Step 304 After receiving the PD-Response of the PF, the SFA sends a PD-Response to the serving SFA, and then the PD-Response is sent to the SFM by the serving SFA, and the policy decision process ends.
- the anchor SFA sets its own corresponding field according to the PD-Response of the PF and generates a PD-Response to send to the serving SFA.
- PF is the signaling upstream node of the anchor SFA
- the service SFA is the signaling downstream node of the anchor SFA.
- the service SFA After receiving the PD-Response of the anchor SFA, the service SFA determines the type of operation of the current configuration. If the operation is created, the corresponding service flow identifier is generated for the flow identifier recorded in the PD-Response, and the service flow identifier is recorded in the PD-Response generated by itself. If it is a modification or deletion operation, the flow identifier is mapped to the service flow identifier according to the preset corresponding relationship, and then the service flow identifier is sent through the PD-Response generated by itself.
- the service SFA may set the service flow identifier and the flow identifier to be the same, or add the own identifier to the service flow identifier to generate a corresponding flow identifier, and the specific setting is determined according to actual needs. .
- the anchor point SFA determines the type of operation of the current configuration. If it is a creation If the operation is performed, the corresponding service flow identifier is generated for the flow identifier recorded in the PD-Response of the PF, and the service flow identifier is recorded in the PD-Response generated by itself.
- the service SFA sets its own corresponding field according to the PD-Response of the anchor SFA, and generates a PD-Response to send to the SFM.
- all network nodes in the WiMAX system can perform specific operations according to the identifier of the service flow to be configured, such as saving the service policy of the service flow.
- the identifier of the service flow to be configured may be recorded in the flow identifier field of the service flow configuration message, so as to configure multiple service flows, save the signaling process, and improve network utilization.
- the present invention adds a Flow Number field to the existing policy decision message and resource reservation message, which is used to record the number of service flows to be configured, and each service flow.
- a Flow Number field to the existing policy decision message and resource reservation message, which is used to record the number of service flows to be configured, and each service flow.
- Tables 5 and 6 show the field formats of PD-Request and PD-Response in one embodiment of the present invention.
- Transaction ID Transaction ID
- the parameter set of each service flow in the PD-Request includes: a flow ID, a decision action, and a resource description.
- the parameter set of each service flow in the PD-Response includes: Flow ID, Decision Result, and Resource Description.
- the set of parameters for each service flow in the PD-Request is called The first policy determines parameters, and the set of parameters of each service flow in the PD-Response is referred to as a second policy decision parameter.
- the number of service flows to be configured in a policy decision process is 4, and the first policy decision parameters of the service flows fl, £2, and f4 are sequentially recorded in the PD-Request.
- the service flow configuration process in another embodiment of the present invention is as shown in FIG. 4, and specifically includes the following steps:
- Step 401 After the SFM is triggered, detecting the number of service flows to be configured, recording them in the Flow Number field of the PD-Request generated by the SFM, and setting a first policy decision parameter for each service flow in the PD-Request. Then, the PD-Request carrying the above parameters is sent to the Serving SFA.
- Step 402 After receiving the PD-Request of the SFM, the Serving SFA sends a PD-Request to the Anchor SFA, and then sends a PD-Request to the PF by the Anchor SFA.
- each network node processes the packet to conform to the message encapsulation format of the specific network node, but the PD-Request always carries multiple to be configured.
- a collection of parameters for a service flow
- the network node such as Serving SFA and Anchor SFA is the receiver of the PD-Request, it parses the PD-Request sent by the upstream node of the signaling, and saves the number of service flows carried in the PD-Request and each The first policy of the service flow determines the parameters.
- Step 403 After receiving the PD-Request, the PF separately configures multiple service flows, and returns PD-Response to the Anchor SFA.
- the Flow Number field is also set in the PD-Response, and the second policy decision parameter of each service flow is recorded.
- Step 404 After the Anchor SFA receives the PD-Response of the PF, it generates The PD-Response is sent to the Serving SFA, and the Serving SFA sends the PD-Response to the SFM. The policy decision process ends.
- the network nodes such as Anchor SFA and Serving SFA parse the PD-Response and save the number of service flows carried in it and the second policy decision parameter of each service flow.
- the PF may not be able to reply to the PD-Response because the PD-Request is not received, so steps 403-404 do not necessarily occur during the policy decision process.
- Tables 7 and 8 show the field formats of the RR-Request and the RR-Response in one embodiment of the present invention.
- the parameter set of the service flow in the RR-Request includes: a flow ID, a reservation action, a direction, a resource description, a media flow description, and a media flow description.
- Media Flow Type Resource Reduced Resources, QoS Priority, and Accounting Extension.
- the parameter set of the service flow in the RR-Response includes: a flow ID, a Reservation Result, and a Resource Description.
- the parameter set of the service flow in the RR-Request is referred to as the first resource reservation parameter
- the parameter set of the service flow in the RR-Response is referred to as the second resource reservation parameter. If you need to perform resource configuration for multiple service flows at the same time, the PF can initiate the resource reservation process shown in Figure 5, specifically:
- Step 501 After detecting the number of service flows to be configured, the PF records the flow number of the RR-Request generated by the PF, and sets a first resource reservation parameter for each service flow in the RR-Request. , then send the RR-Request carrying the above information to the Anchor SFA.
- Step 502 After receiving the RR-Request sent by the PF, the Anchor SFA sends it to the Serving SFA, and then sends the message to the SFM by the Serving SFA.
- the network node After receiving the RR-Request, the network node parses the request, and saves the number of service flows carried in the request and the first resource reservation parameter of each service flow.
- Step 503 After receiving the RR-Request, the SFM performs an application admission control (Apply Admission Control) to detect its own resource usage (such as bandwidth), and gives a configuration success/failure indication according to the resource usage, and passes the RR- Response Reply to Serving SFA.
- Apply Admission Control Apply Admission Control
- a Flow Number field is also set in the RR-Response, and a second resource reservation parameter of each service flow is recorded.
- Step 504 After receiving the RR-Response, the Serving SFA sends it to the Anchor SFA, and then the Anchor SFA sends the message to the PF, and the resource reservation process ends.
- the network node parses the response, and saves the number of service flows carried in the response and the second resource reservation parameter of each service flow.
- the SFM may not be able to make an RR-Response because the RR-Request is not received, so steps 503-504 do not necessarily occur during the resource reservation process.
- the processes described in FIG. 4 and FIG. 5 can be used in combination.
- the PF can directly initiate resource reservation for the service flows, which will not be described in detail here.
- the WiMAX system and the service flow configuration method of the present invention carry the identifier of the service flow in the PD and/or the RR message, and increase the number of flows of the number of the service flows to be configured.
- the receiver can accurately and quickly know the service flow information of the current configuration, so the method improves the processing efficiency of the network node, reduces the network burden, and greatly reduces the probability of error occurrence of the WiMAX system.
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Abstract
A WiMAX system and service flow arrangement method in this system. The WiMAX system includes a Service Flow Management module SFM, a Service Flow Authorization module SFA and a Policy Function module PF. The arrangement process of service flow includes: setting flow identification field beforehand in the service flow arrangement message, generating the service flow arrangement message by the first node when the first node in WiMAX system is triggered, recording at least one identification of the service flow which is to be arranged into the flow identification field of the message, and then sending the service flow arrangement message to the second node which is located in the signaling downstream of the message to trigger the second node to execute the service flow arrangement.
Description
微波存取全球互通系统和系统中的服务流配置方法 Service flow configuration method in microwave access global interworking system and system
技术领域 Technical field
本发 明 涉及微波存取全球互通(WiMax , Worldwide Interoperability for Microwave Access)网络技术,尤指一种 WiMAX系 统和该系统中的服务流配置方法。 发明背景 The present invention relates to the technology of Worldwide Interoperability for Microwave Access (WiMax), and more particularly to a WiMAX system and a service flow configuration method in the system. Background of the invention
WiMAX技术是一种宽带无线接入标准,该标准基于 802.16协议, 能够提供面向互联网的高速连接。 与 3G系统不同的是, WiMax系统 完全采用 IP分组交换技术, 而不必提供面向语音的电路交换。 基于 上述特点, WiMax系统支持的语音通信采用 VoIP方式。 WiMAX technology is a broadband wireless access standard based on the 802.16 protocol that provides high-speed connectivity to the Internet. Unlike 3G systems, WiMax systems use IP packet switching technology entirely, without the need for voice-oriented circuit switching. Based on the above characteristics, the voice communication supported by the WiMax system adopts the VoIP method.
由于 WiMax 系统能够承载多种类型的业务, 比如语音、 视频、 HTTP和 Email等, 且各种业务对服务质量 (QoS)的要求又有所不同, 故 WiMAX 系统采用不同的服务流为同一个移动终端 (MS/MSS)提供 不同类型的业务。所述服务流按照分组信息, 比如源地址、 目的地址、 端口号或协议号等进行划分, 并且每个服务流有一个指定的 QoS 参 数, 用于保障该服务流所提供业务的服务质量。 每个服务流设置有一 个标识, 用于指示该服务流和其 QoS参数等。 Because WiMax systems can carry multiple types of services, such as voice, video, HTTP, and email, and the quality of service (QoS) requirements vary from service to service, WiMAX systems use different service flows for the same mobile. The terminal (MS/MSS) provides different types of services. The service flow is divided according to packet information, such as a source address, a destination address, a port number, or a protocol number, and each service flow has a specified QoS parameter for guaranteeing the service quality of the service provided by the service flow. Each service flow is provided with an identifier indicating the service flow and its QoS parameters and the like.
实际应用中, 可以针对服务流执行以下操作: In practice, you can do the following for the service flow:
1)创建 (Create)。 在出现新的应用时, 系统要创建一个服务流。 1) Create (Create). When a new application appears, the system creates a service flow.
2)认可 (Admit)。 对于某个服务流, 系统需要确定自身能否满足该 服务流的 QoS。 2) Approval (Admit). For a service flow, the system needs to determine if it can satisfy the QoS of the service flow.
3)激活 (Activate)。某个服务流得到认可后,将其激活以投入使用。 3) Activate (Activate). Once a service flow is approved, it is activated for use.
4)修改 (Modify)。 某个服务流的 QoS无法满足应用的需求时, 可
以对该 QoS参数进行修改。 4) Modify. When the QoS of a service flow cannot meet the needs of the application, The QoS parameters are modified.
5)删除 (Delete)。 某个应用结束时, 将支持该应用的服务流删除。 在 WiMAX系统中, 支持和处理服务流的网络节点主要包括: 服 务流管理模块(SFM, Service Flow Management), 服务流授权模块 5) Delete (Delete). At the end of an application, the service stream that supports the app is deleted. In a WiMAX system, network nodes that support and process service flows mainly include: Service Flow Management (SFM), Service Flow Authorization Module
(SFA, Service Flow Authorization)和策略功能模块(PF , Police(SFA, Service Flow Authorization) and Policy Function Module (PF, Police
Function) Function)
其中, SFM设置在基站侧, 用于根据本地的无线资源情况, 对服 务流执行相关操作。 SFA用于根据本地策略,对服务流执行认可操作, 该模块又具体分为服务 SFA(Serving SFA)和锚点 SFA(Anchor SFA)。 PF位于 CSN, 用于保存用户信息并控制服务流的 QoS参数。 The SFM is set on the base station side, and is configured to perform related operations on the service flow according to local radio resources. The SFA is used to perform an approval operation on the service flow according to the local policy. The module is further divided into a service SFA (Serving SFA) and an anchor SFA (Anchor SFA). The PF is located at the CSN and is used to store user information and control the QoS parameters of the service flow.
在 WiMax的标准草案 NWG—Stage-2中 , 定义有利用服务流为用 户提供业务的若干流程,其中两个主要的流程为:策略决定 (PD, Policy Decision)过程和资源预留 (RR, Resource Reservation)过程。 In the draft standard NWG-Stage-2 of WiMax, several processes are defined to provide services for users by using service flows. The two main processes are: PD (Policy Decision) process and resource reservation (RR, Resource). Reservation) process.
PD过程使用策略决定 (PD, Policy Decision)消息实现, 用于对服 务流的业务策略进行设定, 所述 PD .消息包括策略决定请求 (PD- Request)和策略决定响应(PD-Response)。 The PD process is implemented by using a Policy Decision (PD) message, which is used to set a service policy of the service flow, where the PD. The message includes a PD-Request and a Policy-Response (PD-Response).
RR过程使用资源预留(RR, Resource Reservation)消息实现, 用 于对某个 MS/MSS的服务流所需的资源进行预留 ,所述 RR消息包括 资源预留请求 (RR-Request)和资源预留响应 (RR-Response)。 The RR process is implemented by using a Resource Reservation (RR) message, and is used to reserve resources required for a service flow of a certain MS/MSS, where the RR message includes a resource reservation request (RR-Request) and a resource. Reserve response (RR-Response).
图 1显示的是现有技术中策略决定 (PD)的具体流程, 包括以下步 骤: Figure 1 shows the specific process of the prior art policy decision (PD), including the following steps:
步骤 101 : SFM被触发向服务 SFA发出 PD-Request。该 PD-Request 中显式地包含 QoS参数, 或设定有一个服务类型的名称。 Step 101: The SFM is triggered to issue a PD-Request to the serving SFA. The PD-Request explicitly contains QoS parameters, or is set to a service type name.
该步骤中, SFM被触发的原因是多样的。 比如, MS/MSS向 SFM 发出请求, 或者 SFM接收到动态服务流修改 (Dynamic Service Flow
Modification)指令等。 In this step, the reason why the SFM is triggered is diverse. For example, MS/MSS sends a request to SFM, or SFM receives a dynamic service flow modification (Dynamic Service Flow) Modification) instructions, etc.
步骤 102〜103: 服务 SFA接收到 PD-Request后, 被触发向锚点 SFA发出 PD-Request, 再由锚点 SFA发出 PD-Request给该 MS/MSS 归属的网络服务提供商 (NSP, Network Service Provider)的 PF。 Steps 102 to 103: After receiving the PD-Request, the serving SFA is triggered to issue a PD-Request to the anchor SFA, and then the PD-Request is sent by the anchor SFA to the network service provider (NSP, Network Service) to which the MS/MSS belongs. Provider) PF.
步骤 104: PF接收到 PD-Request后进行服务流配置, 并通过策 略决定响应(PD-Response)向锚点 SFA回复应答。 Step 104: After receiving the PD-Request, the PF performs service flow configuration, and responds to the anchor SFA by using a policy decision response (PD-Response).
步骤 105〜106: 锚点 SF A接收到 PD-Response后, 被触发向服务 SFA发出 PD-Response, 再由服务 SFA发出 PD-Response给 SFM, 策略决定的流程结束。 Steps 105 to 106: Anchor Point After receiving the PD-Response, the SF A is triggered to issue a PD-Response to the serving SFA, and then the PD-Response is sent to the SFM by the serving SFA, and the process of the policy decision ends.
表一为现有技术中 PF和 SFA之间传递的 PD消息的字段格式。 消息 方向 参数 Table 1 shows the field format of the PD message transmitted between the PF and the SFA in the prior art. Message direction parameter
PD-Request SFA到 PF 移动终端网络接入标识 (MS NAI) 事务标识 (Transaction ID) PD-Request SFA to PF Mobile Terminal Network Access Identity (MS NAI) Transaction ID (Transaction ID)
决定动作 (Decision Action) Decision Action
资源描述 (Resource Description) Resource Description
PD-Response PF到 SFA MS NAI PD-Response PF to SFA MS NAI
Transaction ID Transaction ID
决定结果(Decision Result) Decision Result
Resource Description Resource Description
表一 Table I
表二为现有技术中 SFA和 SFM之间传递的 PD消息的字段格式。 消息 方向 参数 Table 2 shows the field format of the PD message transmitted between the SFA and the SFM in the prior art. Message direction parameter
PD-Request SFM到 SFA 移动终端标识 (MS ID) PD-Request SFM to SFA Mobile Terminal Identity (MS ID)
Transaction ID Transaction ID
Decision Action Decision Action
Resource Description Resource Description
上述过程中发送的 PD-Request和 PD-Response都包含决定动作 (Decision Action)字段, 用于在网络节点之间传递服务流配置的操作 类型。 Both the PD-Request and the PD-Response sent in the above process contain a Decision Action field for passing the type of operation of the service flow configuration between network nodes.
在 WiMAX系统中, SFM、 服务 SFA、 锚点 SFA和 PF等网络节 点逐级连接。比如, SFM向服务 SFA发出 PD-Request,就将服务 SFA 称为 SFM的 PD-Request信令下游节点。 类似地, 服务 SFA向 SFM 发出 PD-Response, 就将 SFM称为服务 SFA的 PD-Response信令下 游节点。 In WiMAX systems, network nodes such as SFM, Serving SFA, Anchor SFA, and PF are connected step by step. For example, if the SFM sends a PD-Request to the serving SFA, the service SFA is referred to as the downstream node of the PD-Request signaling of the SFM. Similarly, the service SFA sends a PD-Response to the SFM, which is called the PD-Response signaling downstream node of the service SFA.
图 2显示的是现有技术中资源预留 (RR)的具体流程, 包括以下步 骤: Figure 2 shows the specific process of resource reservation (RR) in the prior art, including the following steps:
步骤 201: PF向 Anchor SFA发出 R -Request, 要求为某个服务 流预留资源。 该 RR-Request要求执行的可以是服务流的创建、 激活 或删除等操作。 Step 201: The PF sends an R-Request to the Anchor SFA, requesting to reserve resources for a service flow. The RR-Request requires execution of operations such as creation, activation, or deletion of a service flow.
步驟 202〜203: Anchor SFA接收到所述 RR-Request后, 执行应 用配置 (Apply Profile), 并根据本地策略发送 RR-Request给 Serving Steps 202 to 203: After receiving the RR-Request, the Anchor SFA performs an application configuration (Apply Profile) and sends an RR-Request to the Serving according to the local policy.
SFA, 再由 Serving SFA发出 RR-Request给 SFM。 SFA, then the Serving SFA sends an RR-Request to the SFM.
步骤 204: SFM接收到 RR-Request后, 执行应用允许控制(Apply Step 204: After receiving the RR-Request, the SFM performs application permission control (Apply
Admission Control), 检测自身的资源使用情况 (比如带宽等), 并根据 该资源使用情况给出配置成功 /失败指示, 通过 RR-Response 回复给Admission Control), detecting its own resource usage (such as bandwidth), and giving a configuration success/failure indication according to the resource usage, replying to the RR-Response
Serving SFA。 Serving SFA.
步驟 205〜206: Serving SFA接收到所述 RR-Response后, 将其发 送给 Anchor SFA, 再由 Anchor SFA将该 RR-Response发送给 PF,
资源预留过程结束。 Steps 205 to 206: After receiving the RR-Response, the Serving SFA sends the RR-Response to the Anchor SFA, and then sends the RR-Response to the PF by the Anchor SFA. The resource reservation process ends.
表三为现有技术中 PF和 SFA之间传递的 RR消息的字段格式。 Table 3 shows the field format of the RR message transmitted between the PF and the SFA in the prior art.
表三 Table 3
表四为现有技术中 SFA和 SFM之间传递的 RR消息的字段格式, 消息 方向 参数 Table 4 shows the field format of the RR message transmitted between the SFA and the SFM in the prior art, and the message direction parameter.
RR-Request SFA到 SFM 移动终端标识 (MS ID) RR-Request SFA to SFM Mobile Terminal Identity (MS ID)
Transaction ID Transaction ID
服务流标识(Service Flow ID) Service Flow ID
Reservation Action Reservation Action
Direction Direction
Resource Description
Media Flow Description Resource Description Media Flow Description
Media Flow Type Media Flow Type
Reduced Resources Reduced Resources
QoS Priority QoS Priority
Accounting Extension Accounting Extension
RR-Response SFM到 SFA MS ID RR-Response SFM to SFA MS ID
Transaction ID Transaction ID
Service Flow ID Service Flow ID
Reservation Result Reservation Result
Resource Description Resource Description
表四 Table 4
从以上描述看出,服务流配置是针对特定服务流进行的, WiMAX 系统中的一系列网络节点, 比如服务 SFA、 锚点 SFA、 PF等, 只有 在获知需要对哪个服务流进行配置后, 相应操作才能被执行。 但是, 现有协议规定的策略决定消息无法传递待配置服务流的指示信息,使 得对服务流的配置无法正确执行。 As seen from the above description, the service flow configuration is performed for a specific service flow. A series of network nodes in the WiMAX system, such as the service SFA, the anchor SFA, the PF, etc., only after knowing which service flow needs to be configured, correspondingly The operation can be executed. However, the policy specified by the existing protocol determines that the message cannot deliver the indication information of the service flow to be configured, so that the configuration of the service flow cannot be performed correctly.
此外,在现有定义的字段格式中, PD消息和 RR消息中没有一个 专门的参数用于说明上述流程中处理的服务流个数和每个服务流的 特征信息。 因此, 当上述消息的发送方将 PD消息或 RR消息发给接收 方时, 接收方无法直接获知需要同时对多少个服务流进行配置。 接收方 若要获知该信息, 需要先通过计算获得 PD或 RR消息的大小, 以及每 个消息中单个流的参数集合占用的字节大小等, 再经过一系列运算才能 得出服务流的个数。 对于 WiMAX系统而言, 在同一时间要处理大量的 用户数据和信令消息, 如果对每条 PD和 /或 RR消息都要经过一系列运 算才能间接获知消息中的服务流的个数, 这无疑会消耗不必要的系统资 源。 再有, PD和 /或 RR消息中可能包含可变长的数据项, 或者存在服 务流的参数集合大小不等的情况, 这样系统就无法准确地得知 PD和 /或 RR消息中所包含服务流的个数。
发明内容 In addition, in the existing defined field format, there is no specific parameter in the PD message and the RR message to describe the number of service flows processed in the above process and the feature information of each service flow. Therefore, when the sender of the above message sends a PD message or an RR message to the receiver, the receiver cannot directly know how many service flows need to be configured at the same time. If the receiver wants to know the information, it needs to calculate the size of the PD or RR message and the byte size occupied by the parameter set of a single stream in each message. Then, after a series of operations, the number of service flows can be obtained. . For WiMAX systems, a large amount of user data and signaling messages are processed at the same time. If a series of operations are performed on each PD and/or RR message, the number of service flows in the message can be indirectly known. Will consume unnecessary system resources. Furthermore, the PD and/or RR messages may contain variable length data items, or there may be cases where the parameter sets of the service flows are not equal in size, so that the system cannot accurately know the services included in the PD and/or RR messages. The number of streams. Summary of the invention
本发明的主要目的在于提供一种 WiMAX系统中服务流的配置方 法, 使得网络节点能够正确地对相应的服务流进行配置。 The main object of the present invention is to provide a method for configuring a service flow in a WiMAX system, so that the network node can correctly configure the corresponding service flow.
本发明的又一目的在于提供一种 WiMAX系统, 使得该系统中的 网络节点能够正确地对相应的服务流进行配置。 It is still another object of the present invention to provide a WiMAX system that enables network nodes in the system to properly configure corresponding service flows.
本发明的再一目的在于提供一种 WiMAX 系统和服务流配置方 法,使得该系统能够同时执行多个服务流的配置,大大减轻网络负担。 It is still another object of the present invention to provide a WiMAX system and service flow configuration method that enables the system to simultaneously configure multiple service flows, greatly reducing network load.
为达到上述目的, 本发明的技术方案具体是这样实现的: 一种微波存取全球互通 WiMAX系统中服务流的配置方法, 该方 法包括: 预先在第一服务流配置消息中设置流标识字段, 当 WiMAX 系统中的第一节点被触发后, 该第一节点生成第一服务流配置消息, 将至少一个待配置服务流的标识记录在该消息的流标识字段中,再将 所述第一服务流配置消息发送给位于该消息的信令下游的第二节点, 触发该第二节点执行服务流配置。 To achieve the above objective, the technical solution of the present invention is specifically implemented as follows: A method for configuring a service flow in a global interoperability WiMAX system, the method comprising: setting a flow identification field in a first service flow configuration message in advance, After the first node in the WiMAX system is triggered, the first node generates a first service flow configuration message, records the identifier of the at least one service flow to be configured in a flow identifier field of the message, and then the first service The flow configuration message is sent to the second node downstream of the signaling of the message, and the second node is triggered to perform the service flow configuration.
一种微波存取全球互通 WiMAX系统, 所述 WiMAX系统包括服 务流管理模块 SFM、 服务流授权模块 SFA和策略功能模块 PF; A microwave access global interworking WiMAX system, the WiMAX system includes a service flow management module SFM, a service flow authorization module SFA, and a policy function module PF;
所述 SFM用于判断服务流配置的操作类型; 如果是创建操作, SFM 将自身生成的策略决定请求的流标识字段设置为空; 如果是修 改或删除操作, SFM 将待修改或删除服务流的服务流标识记录在自 身生成的策略决定请求的流标识字段中 , 发送给 SFA; The SFM is used to determine the operation type of the service flow configuration; if it is a creation operation, the SFM sets the flow identification field of the policy determination request generated by itself to be empty; if it is a modification or deletion operation, the SFM will modify or delete the service flow. The service flow identifier is recorded in the flow identifier field of the policy decision request generated by itself, and sent to the SFA;
所述 SFA用于根据预先设置的对应关系 , 将该 SFM的策略决定 请求中的服务流标识映射为流标识, 并将所述流标识记录在该 SFA 生成的策略决定请求中, 发送给 PF。 The SFA is configured to map the service flow identifier in the policy decision request of the SFM to the flow identifier according to the preset correspondence, and record the flow identifier in the policy decision request generated by the SFA, and send the identifier to the PF.
一种微波存取全球互通 WiMAX系统中服务流的配置方法, 该方 法包括: 预先在服务流配置消息中设置流数目字段, 当 WiMAX系统
中的第一节点被触发后, 该第一节点检测待配置服务流的个数, 将其 记录在流数目字段中,并在服务流配置消息中逐一记录每个服务流的 参数集合,再将所述服务流配置消息发送给位于该消息的信令下游的 第二节点, 触发该第二节点执行服务流配置。 A method for configuring a service flow in a global interoperability WiMAX system for microwave access, the method comprising: setting a flow number field in a service flow configuration message in advance, when a WiMAX system After the first node in the first node is triggered, the first node detects the number of service flows to be configured, records them in the number of flows field, and records the parameter sets of each service flow one by one in the service flow configuration message, and then The service flow configuration message is sent to a second node located downstream of the signaling of the message, and the second node is triggered to perform a service flow configuration.
一种微波存取全球互通 WiMAX系统, 所述 WiMAX系统包括服 务流管理模块 SFM、 服务流授权模块 SFA和策略功能模块 PF; A microwave access global interworking WiMAX system, the WiMAX system includes a service flow management module SFM, a service flow authorization module SFA, and a policy function module PF;
所述 SFM用于根据检测到的服务流的个数, 设置自身生成的服 务流配置消息的流数目字段,并将每个服务流的参数集合顺序保存在 该服务流配置消息中, 发送给 SFA; The SFM is configured to set a flow number field of the service flow configuration message generated by itself according to the number of the detected service flows, and save the parameter set of each service flow in the service flow configuration message in sequence, and send the message to the SFA. ;
所述 SFA用于生成服务流配置消息, 通过该消息将服务流的个 数和每个服务流的参数集合发送给该消息的信令下游节点; The SFA is configured to generate a service flow configuration message, and send the number of service flows and the parameter set of each service flow to the signaling downstream node of the message by using the message;
所述 PF用于对每个服务流进行配置, 并在自身生成的服务流配 置消息的流数目字段记录服务流的个数以及每个服务流的参数集合, 发送给 SFA。 The PF is configured to configure each service flow, and records the number of service flows and the parameter set of each service flow in the flow number field of the service flow configuration message generated by itself, and sends the data to the SFA.
由上述技术方案可见, 本发明的这种 WiMAX系统中服务流的配 置方法, 在策略决定消息中设置流标识字段, 记录至少一个待配置服 务流的标识, 使得网络节点能够清楚地获知进行 QoS 参数配置的服 务流, 从而正确地完成相应操作。 It can be seen from the foregoing technical solution that the method for configuring a service flow in the WiMAX system of the present invention sets a flow identification field in a policy decision message, and records an identifier of at least one service flow to be configured, so that the network node can clearly know the QoS parameters. The configured service flow, so that the corresponding operation is completed correctly.
再有, 本发明在策略决定消息和 /或资源预留消息中设置流数目 (Flow Number)字段, 用于记录待配置服务流的个数。 上述消息的发 送方在消息发出前, 会对本次处理的服务流进行检测, 并将服务流的 个数填写到 Flow Number字段中。 这样, 接收方只需读取该字段, 就 能准确、 快捷地获知本次配置的服务流的个数, 故该方法提高了网络 节点的处理效率、 减轻了网络负担, 并在很大程度上减少 WiMAX系 统的错误发生几率。 ·
附图简要说明 Further, the present invention sets a Flow Number field in the policy decision message and/or the resource reservation message for recording the number of service flows to be configured. The sender of the above message will detect the service flow of this process before the message is sent, and fill in the number of service flows into the Flow Number field. In this way, the receiver only needs to read the field to accurately and quickly know the number of service flows configured in the current configuration, so the method improves the processing efficiency of the network node, reduces the network load, and largely Reduce the chance of errors in WiMAX systems. · BRIEF DESCRIPTION OF THE DRAWINGS
图 1为现有技术中策略决定的具体流程; FIG. 1 is a specific process of policy determination in the prior art;
图 2为现有技术中资源预留的具体流程; 2 is a specific process of resource reservation in the prior art;
图 3为本发明一个实施例中策略决定的具体流程; 3 is a specific process of policy determination in an embodiment of the present invention;
图 4为本发明又一个实施例中策略决定的具体流程; 4 is a specific process of policy determination in still another embodiment of the present invention;
图 5为本发明再一个实施例中资源预留的具体流程。 实施本发明的方式 FIG. 5 is a specific process of resource reservation in still another embodiment of the present invention. Mode for carrying out the invention
本发明的服务流配置方法通过在服务流配置消息中携带待配置 服务流的标识, 并在 WiMAX系统中逐级传递该服务流配置消息, 使 得 WiMAX系统的任意一个网络节点能够正确地执行服务流配置。 The service flow configuration method of the present invention carries the identifier of the service flow to be configured in the service flow configuration message, and delivers the service flow configuration message step by step in the WiMAX system, so that any network node of the WiMAX system can correctly execute the service flow. Configuration.
所述服务流配置消息指的是策略决定 (PD)消息、 资源预留 (RR)消 息等。 所述服务流配置指的是在策略决定过程, 或资源预留过程中为 指定的服务流执行创建、 修改或删除等操作。 The service flow configuration message refers to a policy decision (PD) message, a resource reservation (RR) message, and the like. The service flow configuration refers to performing operations such as creating, modifying, or deleting a specified service flow in a policy decision process or a resource reservation process.
比如, 在现有的 PD消息中设置流标识字段, 用于记录待配置服 务流的标识。 当 WiMAX系统中的任意一个网络节点被触发执行策略 决定时, 该网络节点会对指定服务流进行配置, 并将该服务流的标识 记录在自身生成的 PD消息的流标识字段中,发送给信令下游的节点, 触发该下游节点执行服务流的配置。 For example, a flow identifier field is set in an existing PD message, and is used to record an identifier of a service flow to be configured. When any one of the network nodes in the WiMAX system is triggered to execute the policy decision, the network node configures the specified service flow, and records the identifier of the service flow in the flow identification field of the PD message generated by itself, and sends the message to the letter. Let the downstream node trigger the downstream node to perform the configuration of the service flow.
再有, 本发明的服务流配置方法在服务流配置消息中携带待配置 服务流的个数, 并为每个服务流设置参数集合, 再在 WiMAX系统中 逐级传递该服务流配置消息。 Further, the service flow configuration method of the present invention carries the number of service flows to be configured in the service flow configuration message, and sets a parameter set for each service flow, and then delivers the service flow configuration message step by step in the WiMAX system.
比如, 在现有的 PD消息或 RR消息中设置流数目(Flow Number) 字段, 用于记录待配置服务流的个数, 以及每个服务流的参数集合。 For example, a Flow Number field is set in an existing PD message or an RR message, which is used to record the number of service flows to be configured, and a parameter set of each service flow.
基于上述设置, 本发明一个实施例中对服务流进行配置的流程如
图 3所示, 具体包括以下步骤: Based on the above settings, the process of configuring the service flow in one embodiment of the present invention is as follows: As shown in FIG. 3, the following steps are specifically included:
步骤 301 : SFM被触发生成策略决定请求 (PD-Request ) , 将待 配置服务流的服务流标识 (SFID, Service Flow Identification)记录在该 PD-Request的流标识字段中 , 再将该 PD-Request发送给服务 SFA。 Step 301: The SFM is triggered to generate a policy decision request (PD-Request), and the service flow identifier (SFID, Service Flow Identification) of the service flow to be configured is recorded in the flow identifier field of the PD-Request, and then the PD-Request is Sent to the service SFA.
该步骤中, SFM被触发后会判断本次的操作类型。 如果是创建操 作则将 PD-Request的流标识字段设置为空,再发出所述 PD-Request。 如果是修改或删除^作,则将待修改或删除服务流的服务流标识记录 在 PD-Request的流标识字段中发出。 In this step, the SFM is triggered to determine the type of operation. If it is a create operation, the stream identification field of the PD-Request is set to null, and then the PD-Request is issued. If the modification or deletion is performed, the service flow identifier of the service flow to be modified or deleted is recorded in the flow identification field of the PD-Request.
SFM 被触发执行策略决定可以是出于资源优化的需要, 或是 MS/MSS发出动态服务流请求等。 The SFM is triggered to execute the policy decision, either for resource optimization purposes or for MS/MSS to issue dynamic service flow requests.
步骤 302: 服务 SFA接收到所述 PD-Request后, 被触发向锚点 SFA发出 PD-Request, 再由锚点 SFA发送 PD-Request给 PF。 Step 302: After receiving the PD-Request, the service SFA is triggered to send a PD-Request to the anchor SFA, and then the PD-Request is sent by the anchor SFA to the PF.
在一个实例中, 服务 SFA接收到 SFM的 PD-Request后, 根据预 先设置的对应关系将该 PD-Request 中的 SFID 映射为流标识 (Flow ID), 再将所述流标识记录在自身生成的 PD-Request中发出。 此时, 如果执行的是创建操作, 由于 SFM发出的 PD-Request的流标识字段 为空,服务 SFA发出的 PD-Request中的流标识字段也为空。锚点 SFA 被触发后, 根据服务 SFA的 PD-Request设置自身的相应字段, 并生 成 PD-Request发送给 PF。 In an example, after receiving the PD-Request of the SFM, the service SFA maps the SFID in the PD-Request to a flow identifier according to a preset correspondence, and records the flow identifier in its own generated Issued in the PD-Request. At this time, if the creation operation is performed, the flow identification field in the PD-Request sent by the service SFA is also empty because the flow identification field of the PD-Request sent by the SFM is empty. After the anchor SFA is triggered, the corresponding field of the service SFA is set according to the PD-Request of the service SFA, and a PD-Request is generated and sent to the PF.
在另一个实例中 , 服务 SFA接收到 SFM的 PD-Request后, 根据 SFM的 PD-Request设置自身的相应字段, 并生成 PD-Request发送给 锚点 SFA。 锚点 SFA 被触发后, 根据预先设置的对应关系将该 PD-Request中的 SFID映射为流标识 (Flow ID), 再将所述流标识记录 在自身生成的 PD-Request中发送给 PF。 In another example, after receiving the PD-Request of the SFM, the serving SFA sets its own corresponding field according to the PD-Request of the SFM, and generates a PD-Request to send to the anchor SFA. After the anchor SFA is triggered, the SFID in the PD-Request is mapped to the flow ID according to the preset correspondence, and the flow identifier is recorded in the PD-Request generated by itself and sent to the PF.
相对于 PD-Request而言,服务 SFA是锚点 SFA的信令上游节点,
PF是锚点 SFA的信令下游节点。 Relative to the PD-Request, the service SFA is the signaling upstream node of the anchor SFA. The PF is the signaling downstream node of the anchor SFA.
步骤 303: PF接收到 PD-Request后,对所述 Flow ID指示的服务 流进行配置, 并回复策略决定响应 (PD-Response ) 给锚点 SFA。 Step 303: After receiving the PD-Request, the PF configures the service flow indicated by the Flow ID, and returns a policy decision response (PD-Response) to the anchor SFA.
该步骤中, PF被 PD-Request触发后, 判断本次配置的操作类型。 如果是创建操作, 则为待创建服务流生成流标识, 并记录在 PD-Response的流标识字段中发出。 如果是修改或删除操作, 则将待 修改或删除服务流的流标识记录在 PD-Response 的流标识字段中发 出。 In this step, after the PF is triggered by the PD-Request, the type of operation of the current configuration is determined. If it is a create operation, a flow identifier is generated for the service flow to be created, and the record is sent in the flow identifier field of the PD-Response. If it is a modification or deletion operation, the flow identification record of the service flow to be modified or deleted is sent in the flow identification field of the PD-Response.
步骤 304 : 锚点 SFA 接收到 PF 的 PD-Response 后, 发出 PD-Response给服务 SFA, 再由服务 SFA发出 PD-Response给 SFM, 策略决定过程结束。 Step 304: After receiving the PD-Response of the PF, the SFA sends a PD-Response to the serving SFA, and then the PD-Response is sent to the SFM by the serving SFA, and the policy decision process ends.
在一个实例中 , 锚点 SFA会根据 PF的 PD-Response设置自身的 相应字段, 并生成 PD-Response发送给服务 SFA。 对于 PD-Response 而言, PF是锚点 SFA的信令上游节点, 服务 SFA是锚点 SFA的信 令下游节点。 In one example, the anchor SFA sets its own corresponding field according to the PD-Response of the PF and generates a PD-Response to send to the serving SFA. For PD-Response, PF is the signaling upstream node of the anchor SFA, and the service SFA is the signaling downstream node of the anchor SFA.
接收到锚点 SFA的 PD-Response后, 服务 SFA判断本次配置的 操作类型。 如果是创建操作, 则为该 PD-Response中记录的流标识生 成对应的服务流标识, 并将该服务流标识记录在自身生成的 PD-Response中发出。 如果是修改或删除操作, 则根据预先设置的对 应关系将流标识映射为服务流标识,再将所述服务流标识通过自身生 成的 PD-Response发出。 After receiving the PD-Response of the anchor SFA, the service SFA determines the type of operation of the current configuration. If the operation is created, the corresponding service flow identifier is generated for the flow identifier recorded in the PD-Response, and the service flow identifier is recorded in the PD-Response generated by itself. If it is a modification or deletion operation, the flow identifier is mapped to the service flow identifier according to the preset corresponding relationship, and then the service flow identifier is sent through the PD-Response generated by itself.
在预先设置服务流标识和流标识的对应关系时,服务 SFA可以将 服务流标识和流标识设置为相同,也可以在服务流标识上添加自身标 识生成对应的流标识, 具体设置根据实际需求确定。 When the corresponding relationship between the service flow identifier and the flow identifier is set in advance, the service SFA may set the service flow identifier and the flow identifier to be the same, or add the own identifier to the service flow identifier to generate a corresponding flow identifier, and the specific setting is determined according to actual needs. .
在另一个实例中,锚点 SFA判断本次配置的操作类型。如果是创
建操作, 则为 PF的 PD-Response中记录的流标识生成对应的服务流 标识, 并将该服务流标识记录在自身生成的 PD-Response中发出。 服 务 SFA会根据锚点 SFA的 PD-Response设置自身的相应字段, 并生 成 PD-Response发送给 SFM。 至此, WiMAX系统中的所有网络节点都能够根据待配置服务流 的标识执行具体操作,比如保存所述服务流的业务策略等。进一步地, 所述服务流配置消息的流标识字段中可以同时记录多个待配置服务 流的标识, 以便为多个服务流进行配置, 节约信令流程, 提高网络利 用率。 In another example, the anchor point SFA determines the type of operation of the current configuration. If it is a creation If the operation is performed, the corresponding service flow identifier is generated for the flow identifier recorded in the PD-Response of the PF, and the service flow identifier is recorded in the PD-Response generated by itself. The service SFA sets its own corresponding field according to the PD-Response of the anchor SFA, and generates a PD-Response to send to the SFM. At this point, all network nodes in the WiMAX system can perform specific operations according to the identifier of the service flow to be configured, such as saving the service policy of the service flow. Further, the identifier of the service flow to be configured may be recorded in the flow identifier field of the service flow configuration message, so as to configure multiple service flows, save the signaling process, and improve network utilization.
为了给多个服务流进行配置, 本发明在现有的策略决定消息和资 源预留消息中增加流数目(Flow Number)字段, 用于记录待配置服务 流的个数, 以及每个服务流的参数集合。 In order to configure multiple service flows, the present invention adds a Flow Number field to the existing policy decision message and resource reservation message, which is used to record the number of service flows to be configured, and each service flow. A collection of parameters.
对于策略决定请求( PD-Request )和策略决定响应( PD-Response ), 表五和表六显示的就是本发明一个实施例中 PD-Request 和 PD-Response的字段格式。 消 息 方向 (Direction) 参数 (Parameters) For the Policy Decision Request (PD-Request) and the Policy Decision Response (PD-Response), Tables 5 and 6 show the field formats of PD-Request and PD-Response in one embodiment of the present invention. Message Directions (Parameters)
(Message) (Message)
PD-Request SFA到 PF 移动终端网络接入标识 (MS NAI) PD-Request SFA to PF Mobile Terminal Network Access Identifier (MS NAI)
事务标识 (Transaction ID) Transaction ID (Transaction ID)
流数目(Flow Number) Flow Number
{ {
流标识(Flow ID) Flow ID (Flow ID)
决定动作 (Decision Action) Decision Action
资源描述 (Resource Description) Resource Description
} }
PD-Response PF到 SFA 移动终端网络接入标识 (MS NAI)
事务标识 (Transaction ID) PD-Response PF to SFA Mobile Terminal Network Access Identifier (MS NAI) Transaction ID
流数目 (Flow Number) Flow Number
{ {
流标识 (Flow ID) Flow ID (Flow ID)
决定结果 (Decision Result) Decision Result
资源描述 (Resource Description) Resource Description
} }
表五 Table 5
其中, PD-Request中的每个服务流的参数集合包括:流标识 (Flow ID)、 决定动作 (Decision Action)和资源描述 (Resource Description)。 The parameter set of each service flow in the PD-Request includes: a flow ID, a decision action, and a resource description.
PD-Response中的每个服务流的参数集合包括:流标识 (Flow ID)、 决定结果 (Decision Result)和资源 4苗述 (Resource Description)。 The parameter set of each service flow in the PD-Response includes: Flow ID, Decision Result, and Resource Description.
为了区别起见, 将 PD-Request 中的每个服务流的参数集合称为
第一策略决定参数, PD-Response中的每个服务流的参数集合称为第 二策略决定参数。假设某次策略决定过程的待配置服务流的个数为 4, PD-Request中会顺序记录服务流 fl、 £2、 和 f4的第一策略决定参 数。 For the sake of distinction, the set of parameters for each service flow in the PD-Request is called The first policy determines parameters, and the set of parameters of each service flow in the PD-Response is referred to as a second policy decision parameter. Assume that the number of service flows to be configured in a policy decision process is 4, and the first policy decision parameters of the service flows fl, £2, and f4 are sequentially recorded in the PD-Request.
基于上述设置, 本发明又一个实施例中的服务流配置过程如图 4 所示, 具体包括以下步骤: Based on the above configuration, the service flow configuration process in another embodiment of the present invention is as shown in FIG. 4, and specifically includes the following steps:
步骤 401 : SFM被触发后, 检测待配置服务流的个数, 将其记录 在自身生成的 PD-Request的 Flow Number字段, 并在该 PD-Request 中为每个服务流设置第一策略决定参数, 再将携带上述参数的 PD-Request发送给 Serving SFA。 Step 401: After the SFM is triggered, detecting the number of service flows to be configured, recording them in the Flow Number field of the PD-Request generated by the SFM, and setting a first policy decision parameter for each service flow in the PD-Request. Then, the PD-Request carrying the above parameters is sent to the Serving SFA.
步骤 402: Serving SFA接收到 SFM 的 PD-Request后, 生成 PD-Request发送至 Anchor SFA, 再由 Anchor SFA发出 PD-Request 给 PF。 Step 402: After receiving the PD-Request of the SFM, the Serving SFA sends a PD-Request to the Anchor SFA, and then sends a PD-Request to the PF by the Anchor SFA.
该步骤中, PD-Request在不同网络节点之间传输时, 每个网络节 点都会对其进行处理, 使其符合特定的网络节点的消息封装格式, 但 是该 PD-Request始终携带有多个待配置服务流的参数集合。 In this step, when the PD-Request is transmitted between different network nodes, each network node processes the packet to conform to the message encapsulation format of the specific network node, but the PD-Request always carries multiple to be configured. A collection of parameters for a service flow.
此外, Serving SFA和 Anchor SFA等网络节点作为 PD-Request 的接收方时, 会对信令上游节点发送的 PD-Request进行解析, 并保 存该 PD-Request 中携带的服务流的个数和每个服务流的第一策略决 定参数。 In addition, when the network node such as Serving SFA and Anchor SFA is the receiver of the PD-Request, it parses the PD-Request sent by the upstream node of the signaling, and saves the number of service flows carried in the PD-Request and each The first policy of the service flow determines the parameters.
步骤 403: PF接收到 PD-Request后, 对多个服务流分别进行配 置, 并回复 PD-Response给 Anchor SFA。 Step 403: After receiving the PD-Request, the PF separately configures multiple service flows, and returns PD-Response to the Anchor SFA.
所述 PD-Response中同样设置有 Flow Number字段, 并记录有每 个服务流的第二策略决定参数。 The Flow Number field is also set in the PD-Response, and the second policy decision parameter of each service flow is recorded.
步骤 404: Anchor SFA接收到 PF 的 PD-Response 后, 生成
PD-Response发送给 Serving SFA,再由 Serving SFA发送 PD-Response 给 SFM, 策略决定过程结束。 Step 404: After the Anchor SFA receives the PD-Response of the PF, it generates The PD-Response is sent to the Serving SFA, and the Serving SFA sends the PD-Response to the SFM. The policy decision process ends.
该步驟中, Anchor SFA 和 Serving SFA 等网络节点接收到 PD-Response后, 会对该 PD-Response进行解析, 并保存其中携带的 服务流的个数和每个服务流的第二策略决定参数。 In this step, after receiving the PD-Response, the network nodes such as Anchor SFA and Serving SFA parse the PD-Response and save the number of service flows carried in it and the second policy decision parameter of each service flow.
至此, WiMAX系统中的所有网络节点都完成相应服务流的配置, 即保存有服务流的业务策略。由于上述过程能够同时为多个服务流设 置业务策略, 故在很大程度上节约了信令流程, 提高了网絡利用率。 每个 PD-Request的接收方都能通过读取 Flow Number字段, 快速、 准确地获知本次流程究竟是对多少个服务流同时进行处理。 At this point, all network nodes in the WiMAX system complete the configuration of the corresponding service flow, that is, the service policy in which the service flow is saved. Since the above process can simultaneously set a service policy for multiple service flows, the signaling process is largely saved and the network utilization is improved. The receiver of each PD-Request can quickly and accurately know how many service flows are processed simultaneously by reading the Flow Number field.
需要说明的是,在上述过程中, PF可能因为接收不到 PD-Request, 而无法回复 PD-Response, 故步骤 403〜404在策略决定过程中并非一 定会发生。 It should be noted that, in the above process, the PF may not be able to reply to the PD-Response because the PD-Request is not received, so steps 403-404 do not necessarily occur during the policy decision process.
对于 资源预 留请求 ( R -Request ) 和 资源预 留 响应 ( RR-Response ) , 表七和表八显示的是本发明一个实施例中 RR-Request和 RR-Response的字段格式。 For the resource reservation request (R-Request) and the resource reservation response (RR-Response), Tables 7 and 8 show the field formats of the RR-Request and the RR-Response in one embodiment of the present invention.
Message Direction Parameters Message Direction Parameters
RR-Request PF到 SFA MS NAI RR-Request PF to SFA MS NAI
Transaction ID Transaction ID
Flow Number Flow Number
{ {
流标识(Flow ID) Flow ID (Flow ID)
预留动作 (Reservation Action) Reservation Action
方向 (Direction) Direction
资源描述 (Resource Description)
Message Direction Parameters Resource Description Message Direction Parameters
媒体流描述 (Media Flow Description) 媒体流类型(Media Flow Type) 资源可减少标志 (Reduced Resources) 服务质量优先级 (QoS Priority) 计费扩展 (Accounting Extension) Media Flow Description Media Flow Type Resource Reduced Resources QoS Priority Accounting Extension
} }
RR-Response SFA到 PF MS NAI RR-Response SFA to PF MS NAI
Transaction ID Transaction ID
Flow Number Flow Number
{ {
流标识 (Flow ID) Flow ID (Flow ID)
预留结果 (Reservation Result) 资源描述 (Resource Description) Reservation Result Resource Description
} }
表七 Table 7
其中, RR-Request中的服务流的参数集合包括:流标识 (Flow ID)、 预留动作 (Reservation Action)、 方向 (Direction)、 资源描述 (Resource Description) ^媒体流描述 (Media Flow Description)、媒体流类型 (Media Flow Type)、 资源可减少标志 (Reduced Resources), 服务质量优先级 (QoS Priority)和计费扩展 (Accounting Extension)。 The parameter set of the service flow in the RR-Request includes: a flow ID, a reservation action, a direction, a resource description, a media flow description, and a media flow description. Media Flow Type, Resource Reduced Resources, QoS Priority, and Accounting Extension.
RR-Response中的服务流的参数集合包括: 流标识 (Flow ID)、 预 留结果 (Reservation Result)和资源描述 (Resource Description)。 The parameter set of the service flow in the RR-Response includes: a flow ID, a Reservation Result, and a Resource Description.
为了区别起见, 将 RR-Request 中的服务流的参数集合称为第一 资源预留参数, RR-Response中的服务流的参数集合称为第二资源预 留参数。 ' 如果需要同时为多个服务流执行资源配置, PF可以发起图 5所 示的资源预留过程, 具体为: For the sake of distinction, the parameter set of the service flow in the RR-Request is referred to as the first resource reservation parameter, and the parameter set of the service flow in the RR-Response is referred to as the second resource reservation parameter. If you need to perform resource configuration for multiple service flows at the same time, the PF can initiate the resource reservation process shown in Figure 5, specifically:
步骤 501 : PF检测出待配置服务流的个数后, 将其记录到自身生 成的 RR-Request的 Flow Number字段, 并在所述 RR-Request中为每 个服务流设置第一资源预留参数, 再将携带上述信息的 RR-Request 发送给 Anchor SFA。 Step 501: After detecting the number of service flows to be configured, the PF records the flow number of the RR-Request generated by the PF, and sets a first resource reservation parameter for each service flow in the RR-Request. , then send the RR-Request carrying the above information to the Anchor SFA.
步骤 502: Anchor SFA接收到 PF发出的 RR-Request后, 将其发 送至 Serving SFA, 再由 Serving SFA将该消息发送至 SFM。
该步骤中, 网络节点接收到 RR-Request后, 对所述请求进行解 析,保存该请求中携带的服务流的个数和每个服务流的第一资源预留 参数。 Step 502: After receiving the RR-Request sent by the PF, the Anchor SFA sends it to the Serving SFA, and then sends the message to the SFM by the Serving SFA. In this step, after receiving the RR-Request, the network node parses the request, and saves the number of service flows carried in the request and the first resource reservation parameter of each service flow.
步骤 503: SFM接收到 RR-Request后, 执行应用允许控制(Apply Admission Control), 检测自身的资源使用情况 (比如带宽等), 并根据 该资源使用情况给出配置成功 /失败指示, 通过 RR-Response 回复给 Serving SFA。 Step 503: After receiving the RR-Request, the SFM performs an application admission control (Apply Admission Control) to detect its own resource usage (such as bandwidth), and gives a configuration success/failure indication according to the resource usage, and passes the RR- Response Reply to Serving SFA.
所述 RR-Response中同样设置有 Flow Number字段, 并记录有每 个服务流的第二资源预留参数。 A Flow Number field is also set in the RR-Response, and a second resource reservation parameter of each service flow is recorded.
步骤 504: Serving SFA接收到所述 RR-Response后, 将其送至 Anchor SFA,再由 Anchor SFA将该消息送至 PF,资源预留过程结束。 Step 504: After receiving the RR-Response, the Serving SFA sends it to the Anchor SFA, and then the Anchor SFA sends the message to the PF, and the resource reservation process ends.
该步骤中, 网络节点接收到 RR-Response后, 对所述响应进行解 析,并保存该响应中携带的服务流的个数和每个服务流的第二资源预 留参数。 In this step, after receiving the RR-Response, the network node parses the response, and saves the number of service flows carried in the response and the second resource reservation parameter of each service flow.
上述过程中, SFM可能因为接收不到 RR-Request, 而无法做出 RR-Response, 故步骤 503〜504在资源预留过程中并非一定会发生。 In the above process, the SFM may not be able to make an RR-Response because the RR-Request is not received, so steps 503-504 do not necessarily occur during the resource reservation process.
此外, 图 4和图 5所述的过程可以结合使用, 在设定多个服务流 的业务策略后, PF 可以直接发起对上述服务流的资源预留, 此处不 再详加描述。 In addition, the processes described in FIG. 4 and FIG. 5 can be used in combination. After setting the service policies of multiple service flows, the PF can directly initiate resource reservation for the service flows, which will not be described in detail here.
由上述的实施例可见, 本发明的这种 WiMAX系统和服务流配置 方法, 通过在 PD和 /或 RR消息中携带服务流的标识, 并增加记录待 配置服务流的个数的流数目字段, 使得接收方能够准确、 快捷地获知 本次配置的服务流信息, 故该方法提高了网络节点的处理效率、 减轻 了网络负担, 并在很大程度上减少 WiMAX系统的错误发生几率。
It can be seen from the foregoing embodiments that the WiMAX system and the service flow configuration method of the present invention carry the identifier of the service flow in the PD and/or the RR message, and increase the number of flows of the number of the service flows to be configured. The receiver can accurately and quickly know the service flow information of the current configuration, so the method improves the processing efficiency of the network node, reduces the network burden, and greatly reduces the probability of error occurrence of the WiMAX system.
Claims
1、 一种微波存取全球互通 WiMAX 系统中服务流的配置方法, 其特征在于, 该方法包括: 预先在第一服务流配置消息中设置流标识 字段, 当 WiMAX系统中的第一节点被触发后, 该第一节点生成第一 服务流配置消息,将至少一个待配置服务流的标识记录在该消息的流 标识字段中,再将所述第一服务流配置消息发送给位于该消息的信令 下游的第二节点, 触发该第二节点执行服务流配置。 A method for configuring a service flow in a global interoperability WiMAX system, the method comprising: setting a flow identification field in a first service flow configuration message in advance, when a first node in the WiMAX system is triggered After the first node generates a first service flow configuration message, the identifier of the at least one service flow to be configured is recorded in the flow identification field of the message, and the first service flow configuration message is sent to the message located in the message. The downstream second node is triggered to execute the service flow configuration by the second node.
2、 根据权利要求 1 所述的方法, 其特征在于, 所述第一节点为 服务流管理模块 SFM, 所述第一服务流配置消息为策略决定请求; 所述第一节点将待配置服务流的标识记录在流标识字段包括: SFM判断服务流配置的操作类型; 如果是创建操作, SFM将自身生 成的策略决定请求的流标识字段设置为空; 如果是修改或删除操作, SFM将待修改或删除服务流的服务流标识记录在所述策略决定请求 的流标识字段中。 The method according to claim 1, wherein the first node is a service flow management module SFM, the first service flow configuration message is a policy decision request, and the first node is to be configured with a service flow. The identification of the identifier in the flow identification field includes: SFM determines the operation type of the service flow configuration; if it is a creation operation, the SFM sets the flow identification field of the policy determination request generated by itself to be empty; if it is a modification or deletion operation, the SFM is to be modified. Or the service flow identifier of the deleted service flow is recorded in the flow identification field of the policy decision request.
3、 根据权利要求 1 所述的方法, 其特征在于, 所述第一节点为 SFM, 所述第一服务流配置消息为策略决定请求, 所述第二节点为服 务流授权模块 SFA; The method according to claim 1, wherein the first node is an SFM, the first service flow configuration message is a policy decision request, and the second node is a service flow authorization module SFA;
所述第二节点执行服务流配置包括: SFA接收到 SFM的策略决 定请求后, 根据预先设置的对应关系将该 SFM的策略决定请求中的 服务流标识映射为流标识, 并将所述流标识记录在该 SFA生成的策 略决定请求中发出。 The second node performing the service flow configuration includes: after receiving the policy decision request of the SFM, the SFA maps the service flow identifier in the policy decision request of the SFM to the flow identifier according to the preset correspondence, and the identifier is The record is issued in the policy decision request generated by the SFA.
4、 根据权利要求 1 所述的方法, 其特征在于, 所述第一节点为 SFA, 所述第一服务流配置消息为策略决定请求, 所述第二节点为策 略功能模块 PF;
所述第二节点执行服务流配置包括: PF接收到 SFA的策略决定 请求后, 判断服务流配置的操作类型; 如果是创建操作, PF 为待创 建服务流生成流标识, 并记录在该 PF的策略决定响应的流标识字段 中发出; 如果是修改或删除操作, PF 将待修改或删除服务流的流标 识记录在该 PF的策略决定响应的流标识字段中发出。 The method according to claim 1, wherein the first node is an SFA, the first service flow configuration message is a policy decision request, and the second node is a policy function module PF; The second node performing the service flow configuration includes: after receiving the policy decision request of the SFA, the PF determines the operation type of the service flow configuration; if the operation is a creation operation, the PF generates a flow identifier for the service flow to be created, and records the flow identifier in the PF. The policy determines that the response is sent in the flow identification field. If it is a modification or deletion operation, the PF sends the flow identification record of the service flow to be modified or deleted in the flow identification field of the policy decision response of the PF.
5、 根据权利要求 1 所述的方法, 其特征在于, 所述第一节点为 PF,所述第一服务流配置消息为策略决定响应,所述第二节点为 SFA; 所述第二节点执行服务流配置包括: SFA接收到 PF的策略决定 响应后, 判断所述服务流配置的操作类型; 如果是创建操作, SFA为 PF 的策略决定响应中的流标识生成对应的服务流标识, 并将该服务 流标识记录在自身生成的策略决定响应中发出;如果是修改或删除操 作, SFA根据预先设置的对应关系将所述流标识映射为服务流标识, 再将所述服务流标识记录在该 SFA生成的策略决定响应中发出。 The method according to claim 1, wherein the first node is a PF, the first service flow configuration message is a policy decision response, the second node is an SFA, and the second node performs The service flow configuration includes: after receiving the policy of the PF, the SFA determines the operation type of the service flow configuration; if the operation is a creation operation, the SFA generates a corresponding service flow identifier for the flow identifier in the PF policy decision response, and The service flow identifier record is sent in the policy decision response generated by itself; if it is a modification or deletion operation, the SFA maps the flow identifier to a service flow identifier according to a preset correspondence, and then records the service flow identifier in the The policy generated by the SFA determines the response to be issued.
6、 根据权利要求 3或 5所述的方法, 其特征在于, 所述对应关 系为: 服务流标识和流标识设置为相同; 或者, 在服务流标识上添加 对应的 SFA标识生成流标识 , 从流标识上删除对应的 SFA标识生成 月艮务流标识。 The method according to claim 3 or 5, wherein the corresponding relationship is: the service flow identifier and the flow identifier are set to be the same; or, the corresponding SFA identifier is added to the service flow identifier to generate a flow identifier, The corresponding SFA identifier is deleted from the flow identifier to generate a monthly service flow identifier.
7、 根据权利要求 1 所述的方法, 其特征在于, 该方法进一步包 括: 所述第二服务流配置消息中设置有流数目字段; 当所述第一节点 被触发后, 该第一节点检测当前待配置服务流的个数, 将其记录在流 数目字段中,并在第二服务流配置消息中逐一记录每个服务流的参数 集合。 The method according to claim 1, wherein the method further comprises: setting a flow number field in the second service flow configuration message; and detecting, after the first node is triggered, the first node The current number of service flows to be configured is recorded in the flow number field, and the parameter set of each service flow is recorded one by one in the second service flow configuration message.
8、 根据权利要求 7所述的方法, 其特征在于, 所述第二服务流 配置消息为策略决定请求、 策略决定响应、 资源预留请求或资源预留 响应。
The method according to claim 7, wherein the second service flow configuration message is a policy decision request, a policy decision response, a resource reservation request, or a resource reservation response.
9、 一种微波存取全球互通 WiMAX 系统, 其特征在于, 所述 WiMAX系统包括服务流管理模块 SFM、 服务流授权模块 SFA和策 略功能模块 PF; A microwave access global interworking WiMAX system, wherein the WiMAX system includes a service flow management module SFM, a service flow authorization module SFA, and a policy function module PF;
所述 SFM用于判断服务流配置的操作类型;. 如果是创建操作, SFM 将自身生成的策略决定请求的流标识字段设置为空; 如果是修 改或删除操作, SFM 将待修改或删除服务流的服务流标识记录在自 身生成的策略决定请求的流标识字段中, 发送给 SFA; The SFM is used to determine the operation type of the service flow configuration. If the operation is a creation operation, the SFM sets the flow identification field of the policy decision request generated by the SFM to be empty; if it is a modification or deletion operation, the SFM will modify or delete the service flow. The service flow identifier is recorded in the flow identifier field of the policy decision request generated by itself, and sent to the SFA;
所述 SFA用于根据预先设置的对应关系, 将该 SFM的策略决定 请求中的服务流标识映射为流标识, 并将所述流标识记录在该 SFA 生成的策略决定请求中, 发送给 PF。 The SFA is configured to map the service flow identifier in the policy decision request of the SFM to the flow identifier according to the preset correspondence, and record the flow identifier in the policy decision request generated by the SFA, and send the identifier to the PF.
10、 根据权利要求 9所述的系统, 其特征在于, 10. The system of claim 9 wherein:
所述 PF进一步用于判断服务流配置的操作类型; 如果是创建操 作, PF为待创建服务流生成流标识, 并记录在该 PF的策略决定响应 的流标识字段中发送给 SFA; 如果是修改或删除操作, PF将待修改 或删除服务流的流标识记录在该 PF 的策略决定响应的流标识字段 中, 发送给 SFA; The PF is further configured to determine an operation type of the service flow configuration; if the operation is a creation operation, the PF generates a flow identifier for the service flow to be created, and records the information in the flow identification field of the policy decision response of the PF to be sent to the SFA; Or deleting the operation, the PF records the flow identifier of the service flow to be modified or deleted in the flow identification field of the policy decision response of the PF, and sends it to the SFA;
所述 SFA进一步用于判断所述服务流配置的操作类型;如果是创 建操作, SFA为 PF的策略决定响应中的流标识生成对应的服务流标 识, 并将该服务流标识记录在自身生成的策略决定响应中发送给 SFM; 如果是修改或删除操作, SFA根据预先设置的对应关系将所述 流标识映射为服务流标识, 再将所述服务流标识记录在该 SFA生成 的策略决定响应中发送给 SFM。 The SFA is further configured to determine an operation type of the service flow configuration; if it is a creation operation, the SFA generates a corresponding service flow identifier for the flow identifier in the policy determination response of the PF, and records the service flow identifier in the self-generated The policy decision response is sent to the SFM; if it is a modification or deletion operation, the SFA maps the flow identifier to a service flow identifier according to a preset correspondence, and records the service flow identifier in the policy decision response generated by the SFA. Sent to SFM.
11、 根据权利要求 9所述的系统, 其特征在于, 11. The system of claim 9 wherein:
所述 SFM进一步用于根据检测到的服务流的个数, 设置自身生 成的策略决定请求的流数目字段,并将每个服务流的第一策略决定参
数顺序保存在该策略决定请求中, 发送给 SFA; The SFM is further configured to set a flow number field of the requested policy according to the number of the detected service flows, and determine the first policy of each service flow. The number order is saved in the policy decision request and sent to the SFA;
所述 SFA进一步用于将服务流的个数和每个服务流的第一策略 决定参数通过策略决定请求发送给 PF。 The SFA is further configured to send the number of service flows and the first policy decision parameter of each service flow to the PF through a policy decision request.
12、 根据权利要求 11所述的系统, 其特征在于, 12. The system of claim 11 wherein:
所述 PF进一步用于根据接收到的策略决定请求, 为每个服务流 设置业务策略,并在自身生成的策略决定响应的流数目字段记录服务 流的个数, 以及每个服务流的第二策略决定参数, 再将所述策略决定 响应发送给 SFA; The PF is further configured to determine a service policy according to the received policy, set a service policy for each service flow, and record the number of service flows in the flow number field of the policy determination response generated by itself, and the second of each service flow. The policy determines a parameter, and then sends the policy decision response to the SFA;
所述 SFA进一步用于将所述服务流的个数和每个服务流的第二 策略决定参数通过策略决定响应发送给 SFM。 The SFA is further configured to send the number of the service flows and the second policy decision parameter of each service flow to the SFM through a policy decision response.
13、 根据权利要求 9所述的系统, 其特征在于, 13. The system of claim 9 wherein:
所述 PF进一步用于根据检测到的服务流的个数设置资源预留请 求的流数目字段,并将每个服务流的第一资源预留参数顺序保存在该 资源预留请求中, 发送给 SFA; The PF is further configured to: set a flow number field of the resource reservation request according to the number of the detected service flows, and save the first resource reservation parameter of each service flow in the resource reservation request, and send the SFA;
所述 SFA进一步用于将所述服务流的个数和每个服务流的第一 资源预留参数通过资源预留请求发送给 SFM。 The SFA is further configured to send the number of the service flows and the first resource reservation parameters of each service flow to the SFM through a resource reservation request.
14、 根据权利要求 13所述的系统, 其特征在于, 14. The system of claim 13 wherein:
所述 SFM进一步用于根据自身的资源使用情况为每个服务流预 留资源,并在自身生成的资源预留响应的流数目字段记录服务流的个 数, 以及每个服务流的第二资源预留参数, 再将所述资源预留响应发 送给 SFA; The SFM is further configured to reserve resources for each service flow according to its own resource usage, and record the number of service flows in the flow number field of the resource reservation response generated by itself, and the second resource of each service flow. Reserving parameters, and then sending the resource reservation response to the SFA;
所述 SFA进一步用于将所述服务流的个数和每个服务流的第二 资源预留参数通过资源预留响应发送给 PF。 The SFA is further configured to send the number of the service flows and the second resource reservation parameters of each service flow to the PF through a resource reservation response.
15、 一种微波存取全球互通 WiMAX系统中服务流的配置方法, 其特征在于,该方法包括:预先在服务流配置消息中设置流数目字段,
当 WiMAX系统中的第一节点被触发后,该第一节点检测待配置服务 流的个数, 将其记录在流数目字段中, 并在服务流配置消息中逐一记 录每个服务流的参数集合,再将所述服务流配置消息发送给位于该消 息的信令下游的第二节点, 触发该第二节点执行服务流配置。 A method for configuring a service flow in a global interoperability WiMAX system for microwave access, characterized in that the method comprises: setting a flow number field in a service flow configuration message in advance, After the first node in the WiMAX system is triggered, the first node detects the number of service flows to be configured, records them in the flow number field, and records the parameter sets of each service flow one by one in the service flow configuration message. And sending the service flow configuration message to the second node downstream of the signaling of the message, triggering the second node to perform service flow configuration.
16、 根据权利要求 15所述的方法, 其特征在于, 所述服务流配 置消息为策略决定请求,所述每个服务流的参数集合包括以下至少一 项信息: 流标识、 决定动作和资源描述。 The method according to claim 15, wherein the service flow configuration message is a policy decision request, and the parameter set of each service flow includes at least one of the following information: a flow identifier, a decision action, and a resource description. .
17、 根据权利要求 15 所述的方法, 其特征在于, 所述服务流配 置消息为策略决定响应,所述每个服务流的参数集合包括以下至少一 项信息: 流标识、 决定结果和资源描述。 The method according to claim 15, wherein the service flow configuration message is a policy decision response, and the parameter set of each service flow includes at least one of the following information: a flow identifier, a determination result, and a resource description. .
18、 根据权利要求 15所述的方法, 其特征在于, 所述服务流配 置消息为资源预留请求,所述每个服务流的参数集合包括以下至少一 项信息: 流标识、 预留动作、 方向、 资源描述、 媒体流描述、 媒体流 类型、 资源可減少标志、 服务质量优先级和计费扩展。 The method according to claim 15, wherein the service flow configuration message is a resource reservation request, and the parameter set of each service flow includes at least one of the following information: a flow identifier, a reservation action, Direction, resource description, media stream description, media stream type, resource reduction flag, quality of service priority, and billing extension.
19、 根据权利要求 15所述的方法, 其特征在于, 所述服务流配 置消息为资源预留响应,所述每个服务流的参数集合包括以下至少一 项信息: 流标识、 预留结果和资源描述。 The method according to claim 15, wherein the service flow configuration message is a resource reservation response, and the parameter set of each service flow includes at least one of the following information: a flow identifier, a reservation result, and Resource description.
20、 一种微波存取全球互通 WiMAX 系统, 其特征在于, 所述 WiMAX系统包括服务流管理模块 SFM、 服务流授权模块 SFA和策 略功能模块 PF; 20, a microwave access global interworking WiMAX system, characterized in that the WiMAX system comprises a service flow management module SFM, a service flow authorization module SFA and a policy function module PF;
所述 SFM用于根据检测到的服务流的个数, 设置自身生成的服 务流配置消息的流数目字段,并将每个服务流的参数集合顺序保存在 该服务流配置消息中, 发送给 SFA; The SFM is configured to set a flow number field of the service flow configuration message generated by itself according to the number of the detected service flows, and save the parameter set of each service flow in the service flow configuration message in sequence, and send the message to the SFA. ;
所述 SFA 用于生成服务流配置消息, 通过该消息将服务流的个 数和每个服务流的参数集合发送给该消息的信令下游节点;
所述 PF用于对每个服务流进行配置, 并在自身生成的服务流配 置消息的流数目字段记录服务流的个数以及每个服务流的参数集合, 发送给 SFA。
The SFA is configured to generate a service flow configuration message, by which the number of service flows and a parameter set of each service flow are sent to a signaling downstream node of the message; The PF is configured to configure each service flow, and records the number of service flows and the parameter set of each service flow in the flow number field of the service flow configuration message generated by itself, and sends the parameter set to the SFA.
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