WO2009076846A1

WO2009076846A1 - A processing method for emergency service call

Info

Publication number: WO2009076846A1
Application number: PCT/CN2008/073295
Authority: WO
Inventors: Chuan Li
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-12-17
Filing date: 2008-12-02
Publication date: 2009-06-25
Also published as: CN101198159A

Abstract

A processing method for emergency service call used in WiMAX network is provided. The method includes: sensing whether the call request initiated by a terminal side is an emergency service call request, whereafter creating an emergency service flow for the emergency service call request. Furthermore, an access service network (ASN) gateway device and a base station device associated with the method are also disclosed.

Description

Emergency service call processing method

This application claims priority to Chinese Patent Application No. 200710032688.1, entitled "Processing Method for Emergency Service Calls in the Global Interoperability Interoperability Network", filed on December 17, 2007. The content is incorporated herein by reference. Technical field

The present invention relates to the field of communications, and in particular, to a method for processing an emergency service call, an access service network gateway device, and a base station device. Background technique

World Interoperability for Microwave Access (WiMAX) is a wireless metropolitan area network access technology with a maximum transmission speed of 75 megabits per second (Mbit/s) and a signal transmission radius of 50 kilometers. Basically, it can cover the suburbs. Due to this long-distance transmission feature, WiMAX will not only solve the wireless access problem technology, but also be a wireless extension of wired network access (cable, digital subscriber loop), which can easily realize network connection in remote areas. Broad application prospects.

Emergency Service (ES), also known as E911 in North America. In an emergency, the mobile station (MS) can call the emergency service center by calling an emergency service call request, and ask for help. The emergency service center can locate the location of the calling MS through the emergency service, and quickly and accurately solve the social security. Sudden incidents such as emergency rescue.

The prior art provides an emergency service call processing procedure in a hybrid network of WiMAX, softswitch network, and Public Switch Telephone Network (PSTN), that is, the MS uses Voice Over Internet Protocol (VOIP). When the service flow initiates an emergency service call request, the WiMAX network does not parse the VOIP message, and establishes the same service flow as the normal VOIP service for the emergency service call. The processing flow is the same as the ordinary VOIP call service, and the softswitch network passes the analysis. The signaling message is sent to the emergency service call, and the emergency service call request is forwarded to the Public Safety Answer Point (PSAP) in the PSTN to establish a voice session.

Since the prior art WiMAX network cannot perceive the emergency service call request, the emergency service call service uses the same service flow as other common VOIP services, and the corresponding service has the same service. Level, can not meet the WiMAX protocol has a high priority for emergency service call services. Summary of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a method for processing an emergency service call, an access service network gateway device, and a base station device, which can implement the perception of an emergency service call request or an emergency service call release. When the emergency service call request is sensed, the creation of the emergency service flow corresponding to the emergency service call is completed.

In order to solve the above technical problem, the embodiment of the present invention provides a method for processing an emergency service call, which is used in a global microwave access interoperability network, and includes:

Determining whether the call request initiated by the terminal side is an emergency service call request;

After the call request is perceived as an emergency service call request, an emergency service flow is created for the emergency service call.

Correspondingly, the embodiment of the present invention further provides an access service network gateway device, where the access service network gateway device is applied to a global microwave access interoperability network, and the access service network gateway device includes:

Receiving, by the receiving unit, a policy decision request for creating a emergency service flow, which is sent by the base station and carrying the indication information for the terminal side;

The identifying unit, according to the indication information, identifying whether the call request initiated by the terminal side is an emergency service call request;

A creating unit, after identifying that the call request is an emergency service call request, creating an emergency service flow for the emergency service call.

Correspondingly, the embodiment of the present invention further provides a base station device, where the base station device is applied to a global microwave access interoperability network, and the base station device includes:

Receiving, receiving, by the terminal side, a call request carrying the indication information;

The identifying unit, according to the indication information, identifying the call request as an emergency service call request; the policy requesting unit, after identifying that the call request is an emergency service call request, initiating the call request to the access service network gateway device Create a policy decision request for an emergency service flow;

The resource creation unit creates a corresponding network resource for the emergency service call according to the policy decision indication of the access service network gateway device.

The embodiment of the present invention senses the emergency initiated by the terminal side by the network side device of the WiMAX network. When a service call request is made, an emergency service flow is created for the emergency service call, so that a targeted service can be provided for the emergency service call service to better meet system requirements and user requirements. DRAWINGS

1 is a flow chart of a method for processing an emergency service call in a WiMAX network in an embodiment of the present invention;

2 is another flow chart of a method for processing an emergency service call in a WiMAX network according to an embodiment of the present invention;

3 is a flowchart of a method for releasing a service flow in a WiMAX network according to an embodiment of the present invention; FIG. 4 is another flowchart of a method for releasing a service flow in a WiMAX network according to an embodiment of the present invention; An architectural diagram of a WiMAX network system;

6 is another architectural diagram of a WiMAX network system in an embodiment of the present invention. detailed description

An embodiment of the present invention provides a method for processing an emergency service call in a global microwave access interoperability network, a network side device of a global microwave access interoperability network, an access service network gateway device, and a The base station device can implement the perception of the emergency service call request on the network side in the global microwave access interoperability network.

It should be noted that the dynamic service flow established for the emergency service call in the embodiment of the present invention described below is an emergency service flow, but the specific implementation is not limited to this description.

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

1 is a flowchart of a method for processing an emergency service call in a WiMAX network according to an embodiment of the present invention. Referring to the figure, the method mainly includes:

101. After receiving the emergency service call number (such as 110, 120, etc.) dialed by the user, the MS identifies the emergency service call number and initiates an emergency service call request, where the MS has entered the network normally, and if the MS has not entered the network, the step is performed. Before this step, you need to interact with the upper-layer network to complete MS authentication.

102. The MS sends, to the base station (BS), a request message for creating a dynamic service flow (ie, an emergency service flow, the same below) for the emergency service call request, where the request message carries an indication information of an emergency service type, where The indication information indicates that the current call request is an emergency service call request;

103. After receiving the request message for creating a dynamic service flow, the BS parses the emergency service class. Type indication information, identifying that the call is an emergency service call, setting a high priority for the emergency service call (distinguished to the normal VOIP service flow), and to the access service network gateway (Access Service Network Gateway, The request message that is determined by the policy for creating the dynamic service flow is sent by the ASN-GW, and the request message determined by the policy carries the indication information of the emergency service type;

104. After receiving the request message of the policy decision with the indication information of the emergency service type, the ASN-GW identifies the emergency service call by analyzing the indication information of the emergency service type therein, and allows the emergency service call to be called. A dynamic service flow is created. At this time, the ASN-GW determines the QoS attribute of the dynamic service flow carrying the emergency service call message according to the local quality of service (QoS) requirement, and specifically includes the carrying the emergency service call. One or more of the service class, service processing priority, maximum persistent traffic rate, maximum traffic burst, minimum reserved traffic rate, allowed jitter, maximum delay, maximum service data unit size parameter of the service flow of the message Combination of species;

105. The ASN-GW sends a response message to the request policy decision, where the response message carries the determined QoS attribute information, and the ASN-GW is a pre-created dynamic service that carries the emergency service call message. Stream reserved bandwidth resources;

After receiving the response message of the request policy decision, the BS sends the response message requesting to create a dynamic service flow to the MS, where the response message carries the Qos attribute information, and the BS is a pre-created bearer. The service flow of the emergency service call message reserves bandwidth resources;

After receiving the response message requesting the creation of the dynamic service flow, the MS reserves the bandwidth resource for the pre-created service flow carrying the emergency service call message, and sends a confirmation message for creating the dynamic service flow to the BS.

After receiving the acknowledgement message for creating the dynamic service flow, the BS sends the acknowledgement message of the policy decision to the AGN-GW.

The above 105 to 108 processes do not actually create a dynamic service flow for the emergency service call service, but only trigger the reservation of system resources for the dynamic service flow to be created on each node device;

After receiving the acknowledgment message of the policy decision, the AGN-GW sends a resource reservation request message to the BS, where the QoS attribute information is carried in the resource reservation request message, and may be added in the resource reservation request message. Indicates an emergency service type of the cell, and the AGN-GW creates a dynamic service flow for the emergency service call service, which may include creating an R6 interface tunnel and allocating bandwidth resources;

After receiving the resource reservation request message, the BS sends a request message for creating the dynamic service flow to the MS, where the request message for creating the dynamic service flow carries the QoS attribute information, and The request message for creating a dynamic service flow is added with a cell indicating an emergency service type, and the BS creates a dynamic service flow for the emergency service call service, which may include creating an R6 interface tunnel, creating an air interface link, and allocating bandwidth resources;

After the request message for creating the dynamic service flow is received, the MS creates a dynamic service flow for the emergency service call service, which may include creating an air interface link, allocating bandwidth resources, and sending a request message for creating a dynamic service flow to the BS. Reply message

After receiving the response message of the request message for creating a dynamic service flow, the BS sends the response message of the resource reservation to the ASN-GW.

113. After receiving the response message of the resource reservation, the ASN-GW sends an acknowledgement message of the resource reservation to the BS.

After receiving the resource reservation confirmation message, the BS sends the confirmation message for creating a dynamic service flow to the MS.

After receiving the acknowledgment message for creating the dynamic service flow, the MS learns that the dynamic service flow is created, and initiates a VOIP service on the created dynamic service flow that carries the emergency service call message.

In order to comply with the provisions of the existing agreement that the emergency service call is not charged, as an implementation manner, the foregoing step 112 or 113 may further include:

A. The ASN-GW sends a billing record message carrying the emergency service type indication information (identified as an emergency service call) to the call accounting server of the upper layer network, and then the call accounting server of the operator may not respond to the emergency according to the indication information. Service call billing; or

B. The ASN-GW does not send a bill record message for charging the emergency service call to the call accounting server of the upper layer network.

In this way, by reporting the CDR record information indicating the emergency service call to the call accounting server by the WiMAX network, or not reporting the CDR information of the emergency service call, it is possible to not charge the emergency service call and improve the system function.

As an implementation manner, after the ASN-GW creates the dynamic service flow (emergency service flow), the ASAP-GW can also configure a PSAP address in the classification rule of the dynamic service flow to ensure that the dynamic service flow is only used for emergency services. Calls are not used for other purposes.

The method for processing an emergency service call in a WiMAX network in the embodiment of the present invention as shown in FIG. 1 is implemented, and the request message carrying the emergency service type indication information is reported by the BS, and is performed by the BS and the ASN-GW. Determining that the current call request is an emergency service call request according to the emergency service type indication information in the request message, and then determining, by the ASN-GW, the dynamic service flow corresponding to the emergency service call attribute and carrying the emergency service call message. The QoS, according to the QoS information, interacts with the BS and the MS to complete the creation of the dynamic service flow, and can provide the service quality corresponding to the attribute of the emergency service call service, and ensure the high priority of the emergency service call service processing, and better The system needs and the user's needs are met; wherein, the 105 to 108 process realizes the system resource reservation of the service flow of the node device on the service flow, and better guarantees the high priority of the emergency service call service processing; Priority handling of this emergency service call at the BS.

2 is another flow chart of a method for processing an emergency service call in a WiMAX network according to an embodiment of the present invention. Referring to the figure, the method mainly includes:

201. The MS sends an emergency service call by using the existing VOIP service flow, and sends an emergency service call request message to the PSAP side through the VOIP service flow, where the emergency service call request message indicates that the call request initiated by the MS is an emergency service call. Request

202. The ASN-GW identifies the emergency service call request message initiated by the MS. When the identification result is that the MS initiates an emergency service call request, the ASN-GW is allowed to create a dynamic service flow for the emergency service call. The local QoS requirement determines the QoS attribute of the service flow carrying the emergency service call message;

203. The ASN-GW sends a resource reservation request message to the BS, where the resource reservation request message carries the QoS attribute information, and the cell indicating the emergency service type is added to the resource reservation request message, and the AGN- The GW creates a dynamic service flow for the emergency service call service, which may include creating an R6 interface tunnel and allocating bandwidth resources.

After receiving the resource reservation request message, the BS sends a request message for creating the dynamic service flow to the MS, where the request message for creating the dynamic service flow carries the QoS attribute information, and the dynamic service can be created in the dynamic service flow. Adding a cell indicating the type of the emergency service to the request message of the flow, and the BS creates a dynamic service flow for the emergency service call service, which may include creating an R6 interface tunnel, creating an air interface link, and allocating bandwidth resources;

205. After receiving the request message for creating a dynamic service flow, the MS creates a dynamic service flow for the emergency service call service, which may include creating an air interface link, allocating bandwidth resources, and sending a response message for creating a dynamic service flow request to the BS. ;

206. After receiving the response message of the request message for creating a dynamic service flow, the BS sends an ASN-GW to the ASN-GW. Sending a response message of the resource reservation request message;

207. After receiving the response message of the resource reservation request message, the ASN-GW sends an acknowledgement message of the resource reservation request message to the BS.

208. After receiving the acknowledgement message of the resource reservation request message, the BS sends the acknowledgement message for creating the dynamic service flow to the MS.

209. After receiving the acknowledgment message for creating the dynamic service flow, the MS switches the emergency service call from the original VOIP service flow to the created dynamic service flow, that is, by using the created dynamic service flow to carry the Emergency service call message.

The method for processing an emergency service call in a WiMAX network in the embodiment of the present invention as shown in FIG. 2 is implemented, and the emergency service call request message initiated by the MS in the call message is identified by the ASN-GW, and the emergency service call request is perceived. When the ASN-GW senses that the current call request is an emergency service call request, the ASN-GW determines the QoS of the emergency service flow corresponding to the emergency service call attribute corresponding to the emergency service call message, according to the QoS information. The BS and the MS can complete the creation of the emergency service flow, and can provide the service quality corresponding to the attribute of the emergency service call service, ensure the high priority of the emergency service call service processing, and better meet the system requirements and user requirements.

To improve the embodiment of the present invention, the method for releasing the service flow in the WiMAX network according to the embodiment of the present invention is described below. The method for releasing the service flow in the WiMAX network may include the processing of the emergency service call in the WiMAX network according to the embodiment of the present invention. In the method.

FIG. 3 is a flowchart of a method for releasing a service flow in a WiMAX network according to an embodiment of the present invention. Referring to the figure, the method mainly includes:

301. After the MS hangs up the emergency service call, or the emergency service call center hangs up the emergency service call, the MS initiates a request message for deleting the dynamic service flow carrying the emergency service call message;

After receiving the request message for deleting the dynamic service flow, the BS sends a request message to the ASN-GW to delete the policy decision of the emergency service call dynamic service flow;

303. After receiving the request message of the policy decision, the ASN-GW identifies the release of the emergency service call, and sends a response message to the request policy decision, and the response message indicates that the dynamic service flow is allowed to be deleted.

After receiving the response message of the request policy decision, the BS sends the response message requesting to delete the dynamic service flow to the MS.

305. After receiving the response message requesting to delete the dynamic service flow, the MS sends the delete message to the BS. Confirmation message of dynamic service flow;

306. After receiving the acknowledgement message for deleting the dynamic service flow, the BS sends the acknowledgement message of the policy decision to the ASN-GW.

The above processes 303 to 306 do not actually delete the dynamic service flow for the emergency service call service, but only require the ASN-GW to make a decision whether to delete the dynamic service flow;

307. After receiving the acknowledgement message determined by the policy, the ASN-GW sends a delete data path request message to the BS.

308. After receiving the delete data path request message, the BS sends a request message for deleting the dynamic service flow to the MS.

309. After receiving the request message for deleting the dynamic service flow, the MS sends a response message for deleting the dynamic service flow request to the BS.

After receiving the response message of the request message for deleting the dynamic service flow, the BS sends the response message for deleting the data path request to the ASN-GW.

311. After receiving the response message for deleting the data path request, the ASN-GW sends an acknowledgement message for deleting the data path to the BS, and the ASN-GW deletes the dynamic service flow, which may include deleting the R6 interface tunnel and releasing the allocated bandwidth. Resource

312. After receiving the acknowledgment message of the deleted data path, the BS sends an acknowledgment message for deleting the dynamic service flow to the MS, and the BS deletes the dynamic service flow, which may include deleting the R6 interface tunnel, deleting the air interface link, and releasing the allocated bandwidth. Resource

313. After receiving the acknowledgment message for deleting the dynamic service flow, the MS deleting the dynamic service flow may include deleting an air interface link created for the dynamic service flow, and releasing the bandwidth resource.

4 is another flowchart of a method for releasing a service flow in a WiMAX network according to an embodiment of the present invention. Referring to the figure, the method includes:

401. The ASN-GW receives the call message that is carried on the VOIP service flow.

402. The ASN-GW identifies a call message in the call message indicating that the emergency service call of the MS ends, to identify the release of the emergency service call.

403. After identifying the call message indicating the end of the emergency service call, the ASN-GW sends a delete data path request message to the BS.

404. After receiving the deletion data path request message, the BS sends a request message for deleting the dynamic service flow to the MS. 405. After receiving the request message for deleting the dynamic service flow, the MS sends a response message for deleting the dynamic service flow request to the BS.

406. After receiving the response message for deleting the dynamic service flow request, the BS sends the response message for deleting the data path request to the ASN-GW.

407. After receiving the response message for deleting the data path request, the ASN-GW sends an acknowledgement message for deleting the data path to the BS, and the ASN-GW deletes the dynamic service flow, which may include deleting the R6 interface tunnel and releasing the service flow. Allocated bandwidth resources;

408. After receiving the acknowledgment message for deleting the data path, the BS sends an acknowledgment message for deleting the dynamic service flow to the MS, and deleting the dynamic service flow, which may include deleting the R6 interface tunnel, deleting the air interface link, and releasing the bandwidth resource.

409. After the MS receives the confirmation message for deleting the dynamic service flow, deleting the dynamic service flow may include deleting the allocated air interface link and releasing the bandwidth resource.

It should be noted that the method for releasing the service flow in the WiMAX network in the foregoing embodiment of the present invention may be used in combination with the method for creating a service flow in the WiMAX network according to the embodiment of the present invention.

Correspondingly, the WiMAX network system of the embodiment of the present invention will be described below, and the access service network gateway and the base station device of the embodiment of the present invention will be described.

5 is a structural diagram of a WiMAX network system in an embodiment of the present invention, which can complete the creation of an emergency service call service flow. Referring to the figure, the WiMAX network system includes MS51, BS52, and ASN-GW53, wherein ASN-GW53 The first receiving unit 531, the first identifying unit 532, the quality of service determining unit 533, the policy determining unit 534, the first reserved unit 535, and the first creating unit 536, the BS 52 includes a second receiving unit 521 and a second identifying unit 522. The policy request unit 523, the second reservation unit 524, and the second creation unit 525, each device and unit function are as follows:

The MS51 is configured to receive the emergency service call number (such as 110, 120, etc.) that is dialed by the user, identify the emergency service call number, and initiate an emergency service call request, where the MS51 has entered the network normally, and if the MS has not entered the network, the present Before performing the foregoing processing, the MS 51 needs to complete the MS51 authentication with the upper layer network. Then, the request message is sent to the BS 52 to create a dynamic service flow for the emergency service call, where the request message carries the indication information of the emergency service type, and the indication information Instructing the current call request to be an emergency service call request;

a second receiving unit 521 in the BS 52, configured to receive the request message for creating a dynamic service flow;

a second identifying unit 522 in the BS 52, configured to receive the request for creating a dynamic service flow After the information, the indication information of the emergency service type is parsed, and the current call request is identified as an emergency service call request;

The policy requesting unit 523 in the BS53 is configured to, after identifying that the current call request is an emergency service call request, preferentially send a request message to the ASN-GW 53 for determining a policy of creating the emergency service call dynamic service flow, where the policy determines The request message carries the indication information of the emergency service type;

The policy determining unit 534 in the AGN-GW 53 is configured to receive the request message of the policy decision carrying the indication information of the emergency service type;

The first identification unit 532 in the AGN-GW 53 is configured to parse the indication information of the emergency service type in the request message determined by the policy, and identify that the current call request initiated by the MS 51 is an emergency service call request;

The QoS determining unit 533 in the AGN-GW 53 is configured to determine, after determining that the current call request initiated by the MS 51 is an emergency service call request, determine the QoS of the dynamic service flow carrying the emergency service call message according to the local QoS requirement. The attribute may specifically include a service level, a service processing priority, a maximum sustained service rate, a maximum service burst, a minimum reserved service rate, an allowable jitter, a maximum delay, and a dynamic service flow of the emergency service call message. a combination of one or more of the largest business data unit size parameters;

The policy determining unit 534 in the AGN-GW 53 is configured to send, to the BS 52, a response message to the request policy decision, where the response message carries the determined QoS attribute information to initiate dynamic traffic flow to the emergency service call. Resource reservation process;

The first reservation unit 535 of the AGN-GW 53 is configured to reserve bandwidth resources locally for the pre-created dynamic service flow carrying the emergency service call message.

The policy requesting unit 523 of the BS52 is configured to: after receiving the response message of the request policy decision, send the response message requesting to create a dynamic service flow to the MS 51, where the response message carries the Qos attribute information;

The second reservation unit 524 of the BS 52 is configured to reserve bandwidth resources locally for the pre-created service flow that carries the emergency service call message.

The MS51 is configured to reserve a bandwidth resource for the pre-created service flow carrying the emergency service call message, and send an acknowledgement message for creating a dynamic service flow to the BS 52, after receiving the request to create a response message for the dynamic service flow. ;

a second receiving unit 521 in the BS 52, configured to receive the confirmation message for creating a dynamic service flow; The policy requesting unit 523 in the BS 53 sends the confirmation message of the policy decision to the AGN-GW 53 after receiving the confirmation message for creating the dynamic service flow;

a policy determining unit 534 in the ASN-GW, configured to receive the acknowledgement message of the policy decision;

The first creating unit 536 in the ASN-GW is configured to send a resource reservation request message to the BS 52 after receiving the acknowledgment message of the policy decision, where the QoS attribute information is carried in the resource reservation request message, and Adding a cell indicating the emergency service type to the resource reservation request message; and creating a dynamic service flow for the emergency service call service, which may include creating an R6 interface tunnel and allocating the dynamic service flow bandwidth resource;

The second creating unit 525 in the BS52 is configured to send a request message for creating the dynamic service flow to the MS 51 after receiving the resource reservation request message, where the request message for creating the dynamic service flow carries the QoS attribute information. And adding a cell indicating the type of the emergency service to the request message for creating the dynamic service flow, and creating a dynamic service flow for the emergency service call service, which may include creating an R6 interface tunnel, creating an air interface link, and allocating bandwidth resources;

The MS51, after receiving the request message for creating the dynamic service flow, creating a dynamic service flow for the emergency service call service, may include creating an air interface link, allocating bandwidth resources, and sending a request message for creating a dynamic service flow to the BS 52. Reply message

The second creating unit 525 of the BS 52 is configured to send the response message of the resource reservation to the ASN-GW 53 after receiving the response message of the request message for creating the dynamic service flow;

The first creating unit 536 in the ASN-GW 53 is configured to receive the response message of the resource reservation request message, and then send the acknowledgement message of the resource reservation to the BS 52.

The second creating unit 525 of the BS 52 is configured to send the confirmation message for creating a dynamic service flow to the MS 51 after receiving the acknowledgement message of the resource reservation;

The MS51 is configured to: after receiving the acknowledgment message for creating the dynamic service flow, learn that the dynamic service flow is created, and initiate a VOIP service on the created dynamic service flow that carries the emergency service call message.

In order to comply with the provisions of the existing protocol that do not charge the emergency service call, as an implementation manner, the foregoing ASN-GW 53 may further include:

The charging processing unit is configured to: after the first creating unit 536 in the ASN-GW 53 receives the response message of the resource reservation request message, or in the first creating unit 536 of the ASN-GW 53, send the resource pre-request to the BS 52. After the confirmation message is left, the call accounting server of the upper layer network sends an emergency The bill of the service type indication information (identified as an emergency service call) records the message, and then the call billing server of the operator may not charge the emergency service call according to the indication information, or send the opposite to the call billing server of the upper layer network. The bill of the emergency service call billing records the message. In this way, by reporting the CDR record information indicating the emergency service call to the call accounting server by the WiMAX network, or not reporting the CDR information of the emergency service call, it is possible to not charge the emergency service call and improve the system function.

As an implementation manner, the foregoing ASN-GW 53 may further include:

The address configuration unit, after the ASN-GW 53 creates the dynamic service flow (emergency service flow), can also configure a PSAP address in the classification rule of the dynamic service flow, ensuring that the dynamic service flow is only used for emergency services. Calls are not used for other purposes.

As an implementation manner, the BS 52 may further include:

A priority setting unit for setting a high priority for processing an emergency service call, thereby distinguishing it from a processing level of a normal VOIP service flow.

As an implementation manner, the function of the first identifying unit 532 may be replaced by the following function, so that the perceived call request is an emergency service call request:

When the MS51 initiates an emergency service call by using the existing VOIP service flow, the emergency service call request message may be sent to the PSAP side through the VOIP service flow (the emergency service call request message indicates that the call request initiated by the current MS is an emergency service call request). When the emergency service call request message initiated by the MS 51 is identified.

6 is another architecture diagram of a WiMAX network system in an embodiment of the present invention, where the system can complete the release of an emergency service call service flow, where the WiMAX network system can include MS61, BS62, ASN-GW63, where ASN- The GW 63 includes a first identifying unit 631, a policy determining unit 632, and a first releasing unit 633. The BS 62 includes a second identifying unit 621, a policy requesting unit 622, and a second releasing unit 623. The functions of the devices and units are as follows:

The MS61 is configured to: after the emergency service call is disconnected, initiate a request message for deleting the dynamic service flow that carries the emergency service call message;

The second identifying unit 621 in the BS62 is configured to identify, according to the request message that the deleted dynamic service flow is received, the release of the emergency service call initiated by the MS 61;

The policy requesting unit 622 in the BS62 is configured to send, to the ASN-GW 63, a request for deleting a policy decision of the emergency service call dynamic service flow; The first identifying unit 631 of the ASN-GW 63 is configured to identify, according to the received request message determined by the policy, the release of the emergency service call;

The ASN-GW 63 policy determining unit 632 is configured to send, to the BS 62, a response message to the request policy decision, where the response message indicates that the dynamic service flow is allowed to be deleted;

The policy requesting unit 622 in the BS62 is configured to send, after receiving the response message of the request policy decision, the response message requesting to delete the dynamic service flow to the MS 61;

The MS61 is configured to send, after receiving the response message requesting to delete the dynamic service flow, send the message to the BS62.

3⁄4 'J in addition to the confirmation of dynamic business flow: 'Xiao, ;

The policy requesting unit 622 in the BS62 is configured to send the acknowledgement message of the policy decision to the ASN-GW 63 after receiving the acknowledgement message for deleting the dynamic service flow;

a policy determining unit 632 in the ASN-GW 63, configured to receive the acknowledgement message of the policy decision;

The first release unit 633 in the ASN-GW 63 is configured to send a delete data path request message to the BS 62 after receiving the acknowledgement message determined by the policy;

The second release unit 623 in the BS62 is configured to send, to the MS 61, a request message for deleting the dynamic service flow, after receiving the delete data path request message;

The MS61 is configured to send, to the BS 62, a response message for deleting the dynamic service flow request, after receiving the request message for deleting the dynamic service flow;

The second release unit 623 in the BS62 is configured to send the response message of the delete data path request to the ASN-GW 63 after receiving the response message of the request message for deleting the dynamic service flow;

The first release unit 633 in the ASN-GW 63, after receiving the response message for deleting the data path request, sends an acknowledgement message for deleting the data path to the BS62, and deleting the dynamic service flow, which may include deleting the R6 interface tunnel. Release the bandwidth resources allocated for the dynamic traffic flow;

The second release unit 623 in the BS62 is configured to send an acknowledgment message for deleting the dynamic service flow to the MS 61, and delete the dynamic service flow, and delete the R6 interface tunnel and delete the air interface. Link, release bandwidth resources;

The MS61, after receiving the acknowledgment message for deleting the dynamic service flow, deleting the dynamic service flow, may include deleting an air interface link allocated for the dynamic service flow, and releasing the bandwidth resource.

As an implementation manner, the function of the first identification unit 631 may also be replaced by the following function, so as to sense the release of the emergency service call:

Identifying the end of the emergency service call indicating the MS61 in the call message carried on the VOIP service flow Call the message.

The WiMAX network system in the embodiment of the present invention shown in Fig. 6 can be combined with the WiMAX network system in the embodiment of the present invention shown in Fig. 5 (the appropriate unit combination can be performed, etc.), thereby improving the present invention.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. These improvements and retouchings are also considered. It is the scope of protection of the present invention.

Claims

Rights request

A method for processing an emergency service call, which is used in a global microwave access interoperability network, and the method includes:

2. The method according to claim 1, wherein the request for the call initiated by the terminal is an emergency service call request is:

Receiving a call request sent by the terminal side, and identifying whether the call request carries emergency service call indication information, or

Identify whether the message carried on the voice service flow based on the Internet Protocol is an emergency service call request message.

3. The method of claim 1, wherein the creating an emergency service flow for the emergency service call comprises:

Determining an emergency service flow service quality corresponding to the emergency service call attribute and carrying the emergency service call message;

The service flow is preferentially created according to the emergency service flow service quality information.

The method according to claim 3, wherein the emergency service flow quality of service comprises: a service level of the emergency service flow, a service processing priority, a maximum sustained service rate, a maximum service burst, and a minimum A combination of one or more of a reserved service rate, a permissible jitter, a maximum delay, and a maximum service data unit size parameter.

The method of claim 1, wherein after the requesting the call request is an emergency service call request, before the emergency service flow is created for the emergency service call, the method further includes:

System resources for creating an emergency service flow are reserved for the emergency service call.

The method according to any one of claims 1 to 5, wherein, after the requesting the call request is an emergency service call request, after creating an emergency service flow for the emergency service call, the method further includes:

Not reporting the bill record message of the emergency service call to the call accounting server;

Or include,

The bill record message carrying the indication information is reported to the call billing server, so that the call billing server does not charge the emergency service call according to the indication information.

The method according to any one of claims 1 to 5, wherein after the requesting the call request is an emergency service call request, after creating an emergency service flow for the emergency service call, the method further includes:

A public safety call center address is configured for the emergency traffic flow.

The method according to any one of claims 1 to 5, further comprising: sensing a release of the emergency service call;

The emergency traffic flow is released when the release of the emergency service call is sensed.

9. The method of claim 8, wherein the sensing of the release of the emergency service call is:

Receiving a call end request sent by the terminal side, and identifying that the call end request is an end request of an emergency service call, or

The call message carried in the emergency service flow is identified as an emergency service call end message.

An access service network gateway device, where the access service network gateway device is applied to a global microwave access interoperability network, wherein the access service network gateway device comprises:

a receiving unit, configured to receive a policy decision request that is sent by the base station and carries the indication information to create an emergency service flow for the call request initiated by the terminal side;

An identifying unit, configured to identify, according to the indication information, whether a call request initiated by the terminal side is an emergency service call request;

a creating unit, configured to: after the call request is identified as an emergency service call request, for the emergency A service call creates an emergency service flow.

The access service network gateway device of claim 10, wherein the access service network gateway device further comprises:

a service quality determining unit, configured to: when the identifying unit identifies that the terminal side initiates an emergency service call request, determining a service flow service quality corresponding to the emergency service call attribute and carrying the emergency service call message, and triggering the The creation unit creates an emergency service flow with the service flow quality of service.

The access service network gateway device according to claim 10, wherein the access service network gateway device further comprises:

a billing processing unit, configured to report, after the creating unit creates an emergency service flow for the emergency service call, a bill record message carrying the indication information to the call billing server, so that the call billing server is configured according to The indication information does not charge the emergency service call, or does not report the CDR record message of the emergency service call to the call accounting server.

a reservation unit, after the identifying unit identifies that the call request is an emergency service call request, the creating unit reserves an emergency service call for creating an emergency service flow before creating an emergency service flow for the emergency service call system resource.

An address configuration unit, configured to configure a public safety call center address for the emergency service flow after the creating unit creates an emergency service flow for the emergency service call.

The access service network gateway device according to any one of claims 10 to 14, wherein the identification unit comprises:

The first identifying unit, according to the indication information, identifying whether the call request initiated by the terminal side is an emergency service call request; a second identification unit, identifying the release of the emergency service call,

The access service network gateway device further includes:

And releasing the emergency service flow when the second identification unit recognizes the release of the emergency service call.

A base station device, the base station device being applied to a global microwave access interoperability network, wherein the base station device comprises:

And creating a unit, according to the policy decision indication of the access service network gateway device, creating a corresponding emergency service flow for the emergency service call.

The base station device according to claim 16, wherein the base station device further comprises: a priority setting unit, after the identifying unit identifies that the call request is an emergency service call request, for the emergency service The high priority of call setup processing.

The base station device according to claim 16 or 17, wherein the identification unit comprises:

The first identifying unit, according to the indication information, identifying the call request as an emergency service call request;

a second identification unit, identifying the release of the emergency service call,

The base station device further includes: