CN101370260B - Method of AAA Realizing MS Positioning Capability Negotiation - Google Patents

Abstract

A method for negotiating positioning capabilities between a mobile station MS and a home AAA, comprising the steps of: obtaining a downlink channel, performing MAC layer synchronization, and obtaining uplink channel parameters; performing initial ranging and physical layer adjustment; implementing an authentication strategy between the MS and the BS Negotiation and authentication between MS and ASN; Execute end-to-end EAP authentication between MS and home AAA, and transmit MS location capability information to home AAA; Execute message processing of the second version v2 of key management protocol PKM; Execute MS Registration with the ASN; connection establishment and data plane access. For all other signaling processes not related to LBS that are not powered on and the positioning capability of the MS does not change, the negotiation and transfer of the positioning capability of the MS are not involved. Therefore, it solves the problem of continuous transfer of MS positioning capabilities, and provides great convenience for the research and development of MS and system equipment in providing LBS, and can be used as a part of the LBS specification being formulated by WiMAX Forum.

Description

Method of AAA Realizing MS Positioning Capability Negotiation

technical field

The present invention relates to a method for realizing MS positioning capability negotiation in a wireless communication system when the MS positioning capability is stored in the home (hereinafter referred to as Home) authentication/authorization/accounting (hereinafter referred to as AAA).

Background technique

Currently, the WiMAX Forum (hereinafter referred to as WiMAX forum) Network Group (hereinafter referred to as NGW) is developing the WiMAX Location Service (hereinafter referred to as LBS) Phase 2 (also referred to as Stage-2) specification, which stipulates in the draft specification The WiMAX LBS network reference model is shown in Figure 1. First, let’s explain the existing WiMAX network structure. From the point of view of major functional distinctions, WiMAX includes three parts: mobile station (hereinafter referred to as MS), access service network (hereinafter referred to as ASN), connection service Network (hereinafter referred to as CSN). Wherein, the ASN includes a base station (hereinafter referred to as BS) and an access service network gateway (hereinafter referred to as ASN GW).

ASN is a collection of network functions, providing wireless access for WiMAX users. The main functions are network discovery and selection, Internet Protocol (hereinafter referred to as IP) address allocation, wireless resource management and so on. An ASN can be shared by one or more CSNs. A CSN is defined as a set of network functions that provide IP connectivity to WiMAX users. CSN functions include establishing session connections for users, assigning IP addresses to terminals, Internet (hereinafter referred to as Internet) access, establishment and management of tunnels between ASNs and CSNs, mobility management between ASNs, and so on.

In the WiMAX LBS network reference model in the non-roaming state shown in Figure 1, the modules related to LBS include:

(1) Location Server (Location Server, hereinafter referred to as LS)

LS is a functional entity located on the CSN, and the relationship with the external positioning client is "client <—> server", and provides authorization checking functions for the external client and the mobile station requesting positioning information . In addition, the LS may also have the function of positioning calculation.

(2) Location Controller (Location Controller, hereinafter referred to as LC)

The LC is responsible for determining and reporting the location information and positioning parameters of the mobile station. The LC can provide these location information and positioning parameters to the LS, MS or other entities within the ASN, such as the radio resource management (hereinafter referred to as RRM) module and the mobility management ( Hereinafter referred to as MM) module. Once receiving the request from the internal module of MS, LS or ASN, LC will trigger the measurement related to positioning, collect the parameters needed for positioning calculation and perform positioning calculation. LC is generally located in the ASN network, and if it is a decomposed ASN, it is located on the ASN GW.

(3) Location Agent (Location Agent, hereinafter referred to as LA)

The main function of the LA is to perform location-related measurements, and optionally collect and report location-related parameters to the LC. The function of LA can be located in BS, MS or both. If the MS has the LA function, the corresponding BS also has the LA function.

The interface between the LC and the LA on the BS is the interface inside the ASN, that is, the R6 interface, the interface between the LC and the LS is the R3 interface, the interface between the ASN and the ASN is the R4 interface, and the interface between the BS and the BS is R8 interface.

In addition, the end-to-end message flow in the WiMAX network stipulated in the WiMAX LBS Stage-2 specification draft is shown in Figure 2. Its steps include:

201 MS or LBS client initiates a positioning service, and the positioning client or MS can send a positioning request message to the positioning server LS, and the message between the positioning client and the positioning server is not defined in the specification;

202 LS interacts with Authentication/Authorization/Accounting (hereinafter referred to as AAA) to check authentication and authorization.

203 Since the CSN is connected to multiple ASN networks at the same time, the LS needs to find a serving ASN where the located MS (hereinafter referred to as the target MS) is located, and hand it over to the LC located in the serving ASN GW for processing;

204 After finding the serving LC of the target MS, the LS sends a location report request to the serving LS;

205 Execute the location determination process inside the ASN;

206 After successful execution, the location information of the target MS can be obtained, and the LC reports the location information to the LS;

207 LS sends a location response message to the location requester (MS or location client), and returns the actual location information of the target MS;

208 LS sends billing data updates to the billing server, and deducts the fee required for this LBS service from the account of the requester. This process is an optional process. For some special requests, such as emergency services, lawful interception, etc., no There is a fee, so this step is not required.

Step 202 in the end-to-end message flow in the WiMAX network specified in the WiMAX LBS Stage-2 specification draft is an authentication and authorization check. When the LS receives the location request from the LBS client or the MS, the LS sends an authentication request to the AAA, and the AAA performs authentication and authorization checks on the LBS service. Save user information in AAA (called user profile in the protocol), including the following information:

Whether each mobile station equipment has a GPS receiver;

Whether each mobile station device supports enhanced WiMAX positioning capabilities (such as time difference of arrival (hereinafter referred to as TDOA), time of arrival (hereinafter referred to as RTD), etc.;

●Subscription information for positioning services (such as subscription level/type, etc.).

A mobile station (hereinafter referred to as MS) needs to be authenticated to ensure correct subscription. In addition, external clients also need to be authenticated to ensure the security of the WiMAX network and users.

It can only be seen that the AAA and the subscription information of the positioning information save the positioning capability of the MS, but it does not explain how to negotiate and save the positioning capability of the MS in the AAA. The subscription information of the positioning information is generally pre-saved in the AAA manually by the operator of the operator when the user subscribes to the LBS service. From this point of view only, the location capability of the MS is stored together with its subscription information. If the mobile terminal equipment and the subscriber identification card are detachable (currently, Samsung's WiMAX terminal means that the mobile terminal equipment and the subscriber identification card are detachable), once the user replaces a mobile terminal equipment with other positioning capabilities, manual work is required. It is very inconvenient to update the positioning capability of MS.

In addition, when the mobile terminal connects to the GPS receiving module through bluetooth or other external devices, the positioning capability of the MS changes. How to renegotiate and update the positioning capability of the MS in AAA is not described in the specification. Not to mention what signaling process is used to negotiate, save and update the positioning capability of the MS in AAA when the MS is in different states, such as when the MS is in idle (hereinafter referred to as IDLE) and active (hereinafter referred to as ACTIVE) states . Since the selection of the positioning algorithm needs to be performed according to the positioning capability information of the MS, only by solving the above problems can a necessary basis be provided for the selection of the positioning algorithm in the WiMAX network.

In addition, Huawei also proposed a method for MS positioning capability negotiation in a document submitted to the LBS subgroup of the NWG at the WiMAX plenary meeting held in Spain in June 2007. Huawei's method is: when the MS registers with the network, it negotiates the MS positioning capability through layer 2 or layer 3 messages. When the MS is in the ACTIVE state, the MS positioning capability is stored in the LC; when the MS is in the IDLE state, the MS positioning capability Capabilities are stored in the Anchor Paging Controller (hereinafter referred to as APC) or Location Register (hereinafter referred to as LR). When the MS switches to a new serving ASN network, the positioning capability of the MS will be transferred to the new LC. When the MS changes its positioning capability, the information will be updated in the LC during the process of registering with the network.

One of the biggest problems with Huawei's method is that even if the MS's positioning capability does not change, the MS's positioning capability information will continue to transfer as the MS moves. In addition, when the MS moves from one LC to another LC in the ACTIVE state or from one PC/LR to another PC/LR in the IDLE state, the MS positioning capability information also needs to be transferred to the new entity. And when the MS is transferred from IDLE to ACTIVE, the capability information of the MS also needs to be transferred from the PC/LR to the serving LC. When transferring from ACTIVE to IDLE, it is also necessary to transfer from the serving LC to the PC/LR. In this way, even if the user does not start the LBS service, it is necessary to continuously transfer the location capability information of the MS in other signaling processes, which undoubtedly brings new problems to the network. To a certain burden. Therefore, Huawei's method is not a simple and quick method, and does not conform to the simple and practical principle of WiMAX networks.

Contents of the invention

In order to solve the above problems, according to one aspect of the present invention, a method for negotiating location capabilities between a mobile station MS and a home AAA is proposed, including steps:

(1a) Obtain a downlink channel, perform MAC layer synchronization, and obtain uplink channel parameters;

(2a) Perform initial ranging and physical layer adjustment;

(3a) Perform negotiation of authentication policy between MS and BS and authentication between MS and ASN;

(4a) Perform end-to-end EAP authentication between the MS and the home AAA, and transmit the location capability information of the MS to the home AAA;

(5a) Execute the message processing of the second version v2 of the key management protocol PKM;

(6a) Perform registration of the MS with the ASN;

(7a) Establish a connection and establish a data plane path.

According to another aspect of the present invention, a method for negotiating location capabilities between a mobile station MS and a home AAA is proposed, including steps:

(1b) When the positioning capability of the MS changes, if the MS is in the IDLE state, the MS re-accesses the network. On the MS side, due to the change of the LBS positioning capability, re-authentication processing is triggered;

(2b) Perform end-to-end EAP authentication between the MS and the home AAA, and transmit the location capability information of the MS to the home AAA;

(3b) Execute PKMv2 protocol processing;

(4b) The re-authentication process ends.

According to another aspect of the present invention, a method for negotiating location capabilities between a mobile station MS and a home AAA is proposed, including steps:

(1c) When the positioning capability of the MS changes, if the MS is in the ACTIVE state, the MS side triggers re-authentication processing due to the change of the LBS positioning capability;

(2c) Perform end-to-end EAP authentication between MS and home AAA;

(3c) Execute PKMv2 protocol processing;

(4c) The re-authentication process ends.

According to another aspect of the present invention, a method for negotiating location capabilities between a mobile station MS and a home AAA is proposed, including steps:

(1d) When the positioning capability of the MS changes, if the MS is in the IDLE state, the location update process is triggered due to the change of the LBS positioning capability;

(2d) The serving BS makes the anchor authentication entity send the location capability information of the MS to the Home AAA through the R3 interface message;

(3d) Home AAA returns the anchor authentication entity response message, and makes the serving BS return the MS ranging response;

(4d) The serving BS returns a location update response to the serving ASN-GW;

(5d) The serving ASN-GW returns a location update response to the anchor paging controller.

According to another aspect of the present invention, a method for negotiating MS location capabilities for charging event notifications includes the steps of:

(1e) When the positioning capability of the MS changes, if the MS is in the ACTIVE state, the MS sends charging start trigger information to the serving BS due to the change of the positioning capability of the LBS;

(2e) The serving BS sends a charging request message to the anchor authentication entity, which carries MS positioning capability information;

(3e) The anchor authentication entity uses the R3 interface message to send the location capability information of the MS to the Home AAA;

(4e) Home AAA returns the anchor authentication entity response message;

(5e) The anchor authentication entity sends a charging response to the serving BS.

In this way, the present invention provides a method for realizing MS location capability negotiation under the condition of saving MS location capability information in Home AAA. This method only needs to negotiate and save the positioning capability of the MS in the Home AAA when the MS is turned on and the positioning capability of the MS changes, and other unrelated signaling processes do not require negotiation and transfer of the MS positioning capability. It is only necessary to obtain the positioning capability of the MS from Home AAA in the signaling process of starting the LBS service, so as to select the positioning method, so that all other non-starting and MS positioning capabilities have not changed and are not related to LBS The signaling process, such as transfer from IDLE to ACTIVE, transfer from ACTIVE to IDEL, etc., does not involve negotiation and transfer of MS positioning capabilities. This solves the problem of continuous transfer of MS positioning capabilities, and provides great convenience for the research and development of MS and system equipment in providing LBS, and can be used as a part of the LBS specification being formulated by WiMAX Forum. Therefore, it fills up the corresponding gap in the current WiMAX standard.

Description of drawings

Figure 1 WiMAX LBS network reference model in non-roaming state;

Figure 2 LBS end-to-end message flow in WiMAX network;

Fig. 3 The signaling process of MS starting up and performing MS positioning negotiation;

Fig. 4 The signaling process of MS positioning negotiation using re-authentication when the MS is in the IDLE state after power-on and the MS positioning capability changes;

Figure 5. The signaling process of MS positioning negotiation using re-authentication when the MS is in the ACTIVE state after power-on and the MS positioning capability changes;

Fig. 6 The signaling process of MS location negotiation using location update when the MS location capability changes when the MS is in the IDLE state after power-on;

Fig. 7 The signaling process of MS location negotiation using location update when the MS is in the ACTIVE state after power-on and the MS location capability changes;

Fig. 8 Signaling process of MS positioning negotiation using re-authentication when MS positioning capability changes after MS is turned on (modified EAP Payload);

Figure 9 shows the signaling process of MS location negotiation using re-authentication when the MS location capability changes after the MS is turned on (modified EAP NAI).

Detailed ways

The present invention relates to a method for realizing MS positioning capability negotiation in a wireless communication system when the MS positioning capability is stored in Home AAA. In the following description of the present invention, the Worldwide Interoperability for Microwave Access Access (hereinafter referred to as WiMAX) network as an example for description.

In order to achieve the above object, the present invention provides a method for negotiating MS location capability through AAA. Including the following 5 signaling processes:

1. The signaling process of MS positioning capability negotiation when the MS is turned on;

2. When the MS is in the IDLE state, start the relocation process to perform the signaling process of MS positioning capability negotiation;

3. When the MS is in the ACTIVE state, the relocation process is started to perform the signaling process of MS positioning capability negotiation;

4. When the MS is in the IDLE state, use the existing location update process to carry out the signaling process of MS positioning capability negotiation;

5. When the MS is in the ACTIVE state, the charging time notification is started to perform the signaling process of MS positioning capability negotiation.

1. Signaling process of MS positioning capability negotiation when MS is turned on

The signaling process of MS positioning capability negotiation when the MS is turned on includes the following steps:

(1) The channel of the downlink channel is obtained, the MAC layer is synchronized, and the parameters of the uplink channel are obtained;

(2) Initial ranging and physical layer adjustment process;

(3) Negotiation of authentication policy between MS and BS and authentication between MS and ASN;

(4) The end-to-end EAP authentication process between MS and home AAA, which carries the positioning capability information of MS;

(5) The message processing process of the second version of the key management protocol (hereinafter referred to as PKM) (hereinafter referred to as v2);

(6) The registration process of MS to ASN;

(7) Connection establishment and data path establishment (optional)

2. When the MS is in the IDLE state, start the re-authentication process to carry out the signaling process of MS positioning capability negotiation, including the following steps:

(1) Changes in MS positioning capabilities;

(2) MS re-connects to the network;

(3) On the MS side, the re-authentication process is triggered due to the change of the LBS positioning capability;

(4) EAP authentication process, wherein the location capability information of the MS is transmitted through the end-to-end EAP process between the MS and the Home AAA;

(5) PKMv2 protocol processing process;

(6) The process of re-authentication ends.

3. When the MS is in the ACTIVE state, start the re-authentication process to carry out the signaling process of MS positioning capability negotiation, including the following steps:

(1) Changes in MS positioning capabilities;

(2) On the MS side, the re-authentication process is triggered due to the change of the LBS positioning capability;

(3) EAP authentication process, wherein the location capability information of the MS is transmitted through the end-to-end EAP process between the MS and the Home AAA;

(4) PKMv2 protocol processing process;

(5) The re-authentication process ends.

4. When the MS is in the IDLE state, use the existing location update process to perform the signaling process for MS positioning capability negotiation, including the following steps:

(1) Changes in MS positioning capabilities;

(2) Due to the change of the LBS positioning capability, a ranging request is triggered;

(3) The serving BS sends a location update request to the anchor paging controller (Anchor PC), which carries MS location capability information;

(4) The anchor paging controller sends the context acquisition process to the anchor authentication entity, which carries the positioning capability information of the MS;

(5) The anchor authentication entity uses the R3 interface message to send the location capability information of the MS to the Home AAA;

(6) Home AAA returns the anchor authentication entity response message;

(7) The anchor paging controller responds back to the serving BS;

(8) The serving BS returns a ranging response to the MS;

(9) The serving BS returns a location update response to the serving ASN-GW;

(10) The serving ASN-GW returns a location update response to the anchor paging controller.

5. When the MS is in the ACTIVE state, the charging event notification is started to perform the signaling process of MS positioning capability negotiation;

(1) Changes in MS positioning capabilities;

(2) Due to the change of the location capability of the LBS, trigger the MS to send a charging start trigger to the serving BS;

(3) The serving BS sends a charging request to the anchor authentication entity, which carries MS positioning capability information;

(4) The anchor authentication entity uses the existing R3 interface message to send the location capability information of the MS to the Home AAA;

(5) Home AAA returns the anchor authentication entity response message;

(6) The anchor authentication entity sends a charging response to the serving BS.

The method of the invention provides a method for saving the location capability of the MS in the home AAA when the MS is turned on and realizing negotiation of the location capability of the MS when the location capability of the MS is changed after the startup. The method can be applied to any wireless communication network, such as Wideband Code Division Multiple Access (hereinafter referred to as WCDMA), Code Division Multiple Access 2000 (hereinafter referred to as CDMA2000), WiMAX network, Long Term Evolution (hereinafter referred to as LTE) network, etc. In the embodiment of the present invention, the WiMAX network is taken as an example for illustration. Other networks follow the corresponding relationship between the WiMAX network and the functional entities in the network according to the method of the present invention or select several signaling processes or one signaling process in the present invention. Several parts are implemented.

To achieve the purpose of the present invention, many methods can be used. In order to ensure usability and acceptance by standard organizations, the modification of existing standards should be minimized. This mainly takes into account the maturity of existing standards and the fact that many manufacturers have already Products are developed based on existing standards. If the modification is large, these manufacturers need to spend a lot of manpower and material resources to make major modifications to the product, which is difficult for them to accept. Based on this, the invention made in the present invention is to reuse the signaling procedures and messages in the existing standards as much as possible, instead of redesigning several brand new signaling procedures and messages. Therefore, the solution invented in the present invention is a method with greater practicability and acceptability.

The specific embodiments of the method for implementing the AAA of the present invention to realize MS positioning capability negotiation are shown in Fig. 3-Fig. 7 . Firstly, an explanation is made on the specific processes and messages in the following specific embodiments given in the present invention. Although the present invention recommends that the method for realizing MS positioning capability negotiation be implemented according to the order of message sending and receiving in the embodiment, the present invention does not strictly fix the sequence of messages, that is, the method of implementing MS capability negotiation without fixing AA Certainly according to the order of sending messages in this embodiment, those skilled in the art can selectively implement certain processes or a certain process in certain processes according to the specific LBS business conditions and specific network conditions carried out by themselves, or According to the specific equipment or LBS operating conditions, the sequence of sending individual messages should be adjusted appropriately. In addition, the specific parameters included in the messages listed in this embodiment are only examples, and those skilled in the art may selectively adopt, or design other completely new parameters or add other parameters.

For the signaling process in Figure 3-Figure 5, the EAP process is used to carry the capability information of the MS, and the existing EAP message needs to be expanded, such as modifying the network access identifier (hereinafter referred to as NAI) in the EAP message or EAP payload (hereinafter referred to as EAP-Payload) field, add a new parameter. That is, the positioning capability information of the MS, including whether it supports GPS reception, whether it supports enhanced positioning algorithms (such as TDOA, RTD, etc.) and other positioning information.

For the signaling process of MS positioning capability negotiation when the MS is powered on, the solution in the present invention reuses the existing signaling process of the initial network access process when the MS is powered on as much as possible. When the existing MS specified in the existing WiMAX Forum network structure specification (the third phase: detailed protocol and process) starts up, it needs to start the MS initial network access process (MS InitialEntry) process. According to whether it is one-way authentication or two-way authentication, it can be further divided into single (referred to as Single in the protocol) Extended Authentication Protocol (hereinafter referred to as EAP) and double (referred to as Double in the protocol) EAP. In the following embodiments, the present invention is illustrated by taking Single EAP as an example. For a network using Double EAP, it is only necessary to carry the positioning capability information of the MS in the first EAP process. For the latter EAP process, the existing EAP process can still be used, and the latter EAP process does not need to be enhanced.

The signaling process of MS power-on for MS location negotiation is shown in Figure 3, including steps:

301 MS boots up, first obtains the uplink channel, MAC layer synchronization and downlink channel parameters on the air interface. For details, please refer to the Institute of Electrical and Electronics Engineers (hereinafter referred to as IEEE) 802.16e specification;

302 MS performs the initial ranging and physical layer adjustment process on the air interface, which can be specified in the IEEE 802.16e specification;

303 First, the authentication strategy is negotiated between the MS and the serving ASN, and then the authentication between the MS and the serving ASN is performed according to the negotiated authentication strategy;

304 The end-to-end EAP authentication process between the MS and the Home AAA, wherein the EAP message sent by the MS to the Home AAA carries the location capability information of the MS. After the Home AAA receives this information, it adds or updates this information to the database for During the positioning service process initiated, the positioning capability information of the MS can be queried from the Home AAA;

305 After the end-to-end EAP authentication process between the MS and the Home AAA is completed, the subsequent PKMv2 negotiation process is performed between the MS and the serving ASN. This process has little to do with the present invention and will not be described here. For details, please refer to WiMAX Specifications for the third stage (commonly referred to as Stage-3) of Forum NWG Version 1.0;

306 After the MS completes the authentication process between the Home AAA and the service ASN, it initiates a registration process to the network side, and keeps or updates the relevant context information of the MS in the service ASN;

307 If a service is initiated, the MS triggers the establishment of a dynamic service flow through the air interface, and a data plane channel is established between the BS and the ASN GW.

MS is in IDLE state after starting up, if a GPS receiving module or other positioning modules are connected externally through Bluetooth or USB port or other methods, the positioning capability of MS will be changed. In this case, the signaling process of MS location negotiation using re-authentication is shown in Figure 4, including steps:

401 The MS is in the IDLE state after booting up, and the positioning capability of the MS has changed;

402 The MS triggers a network re-access process due to a change in the positioning capability of the MS;

403 The MS triggers the re-authentication process, and carries its cause value as a change in the MS's location capability;

404 The end-to-end EAP authentication process between the MS and the Home AAA, in which the location capability information of the MS is carried in the EAP message sent by the MS to the Home AAA. After the Home AAA receives it, add or update this information to the attribute or information list of the MS, so that the positioning capability information of the MS can be obtained from the Home AAA during the process of initiating the positioning service;

405 After the end-to-end EAP authentication process between the MS and the Home AAA is completed, the subsequent PKMv2 negotiation process is performed between the MS and the serving ASN. This process has little to do with the present invention and will not be described here. For details, please refer to WiMAX Specifications for the third stage (commonly referred to as Stage-3) of Forum NWG Version 1.0;

406 The re-authentication process is over.

When the MS is in the ACTIVE state after it is turned on, if a GPS receiving module or other positioning modules are connected externally through the Bluetooth or USB port or other methods, the positioning capability of the MS will change. In this case, MS positioning using re-authentication The signaling process of negotiation is shown in Figure 5, including steps:

501 The MS is in the IDLE state after booting, and the positioning capability of the MS has changed;

502 The MS triggers the re-authentication process, and carries its cause value as a change in the MS's location capability;

503 The end-to-end EAP authentication process between MS and Home AAA, in which the EAP message sent by MS to Home AAA carries the location capability information of MS. After Home AAA receives this information, it adds or updates this information to the attributes of this MS or information list, so that the positioning capability information of the MS can be obtained from the Home AAA during the positioning service initiated;

504 After the end-to-end EAP authentication process between the MS and the Home AAA is completed, the subsequent PKMv2 negotiation process is performed between the MS and the serving ASN. This process has little to do with the present invention and will not be described here. For details, please refer to WiMAX Specifications for the third stage (commonly referred to as Stage-3) of Forum NWG Version 1.0;

505 The re-authentication process is over.

MS is in IDLE state after starting up, if a GPS receiving module or other positioning modules are connected externally through Bluetooth or USB port or other methods, the positioning capability of MS will be changed. In this case, it can be realized by using re-authentication as described above, which has the advantage of only carrying the location capability information of the MS in the EAP process, and can use the modification made by the MS to realize the negotiation of the location capability of the MS in the power-on state That is, using the existing process, no other additional modifications are required, but the disadvantages are also very obvious. In this case, it is necessary to start a complex re-authentication process only for the negotiation of the MS's location capability, and the cost is relatively high. To solve this problem, the present invention also proposes another method, which will be described in detail below:

When the MS is in the IDLE state after powering on, when the MS positioning capability changes, the MS positioning negotiation using the signaling process of the MS positioning negotiation for location update, as shown in Figure 6, includes steps:

601 The MS is in the IDLE state after booting, and the positioning capability of the MS has changed;

602 Due to the change of the positioning capability of the MS, the MS sends a ranging request to the serving BS through the air interface, and the updated one carries the positioning capability information of the MS;

603 The serving BS sends a location update request to the anchor paging controller located at the anchor ASN, which carries the positioning capability information of the MS;

604 The context acquisition process is performed between the anchor paging controller and the anchor authentication entity, which carries the positioning capability information of the MS;

605 After the anchor authentication entity obtains the location capability information of the MS, it sends a message to the Home AAA through the R3 interface.

In order to reduce the modification of existing norms, the present invention proposes not to add a new R3 interface message only to realize this function, but to use the existing R3 interface message, which can use the existing charging request message to add a The new parameter is the positioning capability information of the MS, or the message added for the LBS, such as a positioning request or other messages. Those of ordinary skill in the art may also select other existing R3 interface messages to add a new parameter, that is, the location capability information of the MS, or may also use a new R3 interface message;

606 After the Home AAA receives it, if it resolves to include the positioning capability information of the MS, add or update this information to the attribute or information list of the MS, so that the MS can be obtained from the Home AAA during the positioning service initiated Positioning capability information, it is worth noting that if the charging request message is used to realize this function, it is necessary to distinguish the message that only transmits the MS positioning capability information from the actual real charging request message. The specific distinguishing method is not limited in the present invention. , those skilled in the art can choose and design by themselves, as long as the AAA can distinguish and transmit the charging request message of the MS positioning capability information without charging. Then send a corresponding response message to the anchor authentication entity;

607 The anchor paging controller sends a location update response to the serving BS;

608 The serving BS sends a ranging response to the MS through the air interface;

609 The serving BS sends a location update confirmation message to the ASN GW;

610 ASN GW sends a location update confirmation message to the anchor paging controller;

Figure 7 shows the signaling process of MS positioning negotiation using the charging event notification process when the MS positioning capability changes when the MS is in the ACTIVE state after power-on, including steps:

701 The MS is in the ACTIVE state after being turned on, and the positioning capability of the MS has changed;

702 Due to the change of the positioning capability of the MS, the MS sends a charging start trigger message to the serving BS through the air interface, which carries the updated positioning capability information of the MS;

703 The serving BS sends a charging request to the anchor authentication entity located in the anchor ASN or the AAA client, which carries the updated positioning capability information of the MS;

704 After the anchor authentication entity obtains the positioning capability information of the MS, it sends it to the Home AAA through the R3 interface message. In order to reduce the modification of the existing specifications, the present invention proposes not to add a new R3 interface message just to realize this function, but to use The existing R3 interface message can use the existing charging request message to add a new parameter, that is, the location capability information of the MS, or use a message added for LBS, such as a location request or other messages. Those of ordinary skill in the art may also select other existing R3 interface messages to add a new parameter, that is, the location capability information of the MS, or may also use a new R3 interface message;

705 After the Home AAA receives it, if it resolves to include the positioning capability information of the MS, then add or update this information to the attribute or information list of the MS, so that the MS can be obtained from the Home AAA during the positioning service initiated Positioning capability information, it is worth noting that if the charging request message is used to implement this function, it is necessary to distinguish the message that only transmits the MS positioning information from the actual real charging request message. The specific method for distinguishing is not limited in the present invention. Those skilled in the art can choose and design by themselves, as long as the AAA can distinguish and send the charging request message of MS location information without charging. Then send a corresponding response message to the anchor authentication entity;

706 The anchor authentication entity sends a charging response to the serving BS.

After the MS is turned on, if a GPS receiving module or other positioning modules are connected externally through the Bluetooth or USB port or other methods, the positioning capability of the MS will change. In this case, the MS positioning negotiation signaling using re-authentication The process (by adding the positioning capability information of the MS in the EAP PAYLOAD) is shown in Figure 8, including steps:

801 After the MS is turned on, the positioning capability of the MS has changed;

802 The MS triggers the re-authentication process, and carries its reason value as the change of the MS positioning capability, and carries the LBS capability change flag in the transmitted message to indicate that the re-authentication is triggered by the change of the MS positioning capability;

803 The end-to-end EAP authentication process between the MS and the Home AAA, wherein the EAPPAYLOAD message sent by the MS to the Home AAA carries the positioning capability information of the MS (for example, by adding the attribute value and AVP value of EAP-AKA, EAP-TTLS, and transmitting MS positioning capability information) After Home AAA receives this information, add or update this information to the attributes or information list of this MS, so that the positioning capability information of MS can be obtained from HomeAAA during the process of initiating positioning services, and according to the transmitted message carry the LBS capability change flag to determine to skip the execution of the PKMv2 negotiation process;

804 The re-authentication process is over.

After the MS is turned on, if a GPS receiving module or other positioning modules are connected externally through the Bluetooth or USB port or other methods, the positioning capability of the MS will change. In this case, the MS positioning negotiation signaling using re-authentication The process (by adding the positioning capability information of the MS in the EAP NAI) is shown in Figure 9, including steps:

901 After the MS is turned on, the positioning capability of the MS has changed;

902 MS triggers the re-authentication process, and carries its cause value as the change of MS positioning capability, and carries the LBS capability change flag in the transmitted message to indicate that the re-authentication is triggered by the change of MS positioning capability;

903 The end-to-end EAP authentication process between MS and Home AAA, in which the EAP NAI message sent by MS to Home AAA carries the positioning capability information of MS, such as modifying the WiMAX-decoration part of NAI, such as adding {LBS=1.. .n} field, according to the information carried in the NAI, the authentication client encapsulates the location capability information of the MS in the authentication message. After Home AAA receives this information, it adds or updates this information to the attribute or information list of the MS, so that In the process of initiating the positioning service, the positioning capability information of the MS can be obtained from the Home AAA, and the PKMv2 negotiation process can be skipped according to the LBS capability change flag carried in the transmitted message;

904 The re-authentication process ends.

Claims (21)

1. a mobile station MS and Home AAA position the method for capability negotiation, comprise step:

(1a) obtain down channel, it is synchronous to carry out the MAC layer, and obtains the up channel parameter;

(2a) carry out initial ranging and physical layer adjustment;

(3a) carry out the negotiation of certification policy between MS and the BS and the authentication between MS and the ASN;

(4a) the end to end EAP of execution MS and Home AAA authentication is sent to and is kept at Home AAA to the stationkeeping ability information of MS;

(5a) Message Processing of execution IKMP PKM second edition v2;

(6a) carry out MS to the registration of ASN;

(7a) connect and set up the data surface path.

2. method according to claim 1 is characterized in that, the MS initial access network when starting shooting based on MS processes to realize the negotiation of the stationkeeping ability of MS.

3. method according to claim 2 is characterized in that, the EAP message in the end to end EAP verification process of MS and Home AAA is expanded, and described EAP message comprises the stationkeeping ability information of MS.

4. method according to claim 3 is characterized in that, the stationkeeping ability information of described MS is added in EAP PAYLOAD or the EAP NAI parameter.

5. a mobile station MS and Home AAA position the method for capability negotiation, comprise step:

(1b) when the stationkeeping ability of MS changes, if MS is in the IDLE state, then the MS re-accessing network in the MS side, owing to the change of LBS stationkeeping ability, triggers re-authentication and processes;

(2b) the end to end EAP of execution MS and Home AAA authentication is sent to and is kept at Home AAA to the stationkeeping ability information of MS;

(3b) carry out IKMP PKM the second version v2 protocol processes;

(4b) the re-authentication processing finishes.

6. method according to claim 5 is characterized in that, utilize re-authentication in processing MS and Home AAA between the EAP authentication processing stationkeeping ability information of carrying MS end to end.

7. method according to claim 6 is characterized in that, the EAP message in the end to end EAP verification process of counterweight verification process MS and home AAA expands, and described EAP message comprises the stationkeeping ability information of MS.

8. method according to claim 7 is characterized in that, the stationkeeping ability information of described MS is added in EAP PAYLOAD or the EAP NAI parameter.

9. a mobile station MS and Home AAA position the method for capability negotiation, comprise step:

(1c) when the stationkeeping ability of MS changes, if MS is in the ACTIVE state, then the MS side owing to the change of LBS stationkeeping ability, triggers re-authentication and processes;

(2c) the end to end EAP of execution MS and Home AAA authentication is sent to and is kept at home AAA to the stationkeeping ability information of described MS;

(3c) carry out IKMP PKM second edition v2 protocol processes;

(4c) the re-authentication processing finishes.

10. method according to claim 9 is characterized in that, utilize re-authentication in processing MS and Home AAA between the EAP authentication processing stationkeeping ability information of carrying MS end to end.

11. method according to claim 10 is characterized in that, the EAP message in the end to end EAP verification process of counterweight verification process MS and Home AAA expands, and described EAP message comprises the stationkeeping ability information of MS.

12. method according to claim 11 is characterized in that, the stationkeeping ability information of described MS is added among EAP PAYLOAD or the EAP NAI.

13. method according to claim 9 is characterized in that, the end to end EAP authentication of MS and Home AAA is carried out after the MS start.

14. a mobile station MS and Home AAA position the method for capability negotiation, comprise step:

(1d) when the stationkeeping ability of MS changes, if MS is in the IDLE state, then owing to the change of LBS stationkeeping ability, trigger position upgrades to be processed;

(2d) serving BS broadcasts makes the anchor certification entity by the stationkeeping ability information of Interface R3 message to Home AAA transmission MS, and the stationkeeping ability information of described MS is kept at Home AAA;

(3d) Home AAA returns anchor certification entity response message, and makes serving BS broadcasts return the MS ranging response;

(4d) serving BS broadcasts is upgraded response to service ASN-GW home position;

(5d) service ASN-GW upgrades response to anchor paging controller home position.

15. method according to claim 14 is characterized in that, step 2d) comprise that also serving BS broadcasts sends position updating request to the anchor paging controller, described request is carried MS stationkeeping ability information.

16. method according to claim 15 also comprises, the anchor paging controller is carried out the context transfer process with the anchor certification entity, and wherein the anchor paging controller carries the stationkeeping ability information of MS to the message of anchor certification entity transmission.

17. method according to claim 14 is characterized in that, transmits described message by Interface R3, described message comprises the stationkeeping ability information of MS.

18. method according to claim 14 is characterized in that upgrading in the processing in the position, the message that comprises MS stationkeeping ability information that the anchor certification entity will receive sends to and is kept among the Home AAA by the message of Interface R3.

19. one kind is carried out the method for MS location capability negotiation to charging event notice, comprises step:

(1e) when the stationkeeping ability of MS changes, if MS is in the ACTIVE state, then owing to the change of LBS stationkeeping ability, MS sends charging to serving BS broadcasts and starts trigger message;

(2e) serving BS broadcasts sends charging request message to the anchor certification entity, wherein carries MS stationkeeping ability information;

(3e) the anchor certification entity utilizes Interface R3 message to the stationkeeping ability information of Home AAA transmission MS, and the stationkeeping ability information of described MS is kept at Home AAA;

(4e) Home AAA returns anchor certification entity response message;

(5e) the anchor certification entity sends the charging response to serving BS broadcasts.

20. method according to claim 19 is characterized in that, by comprising the stationkeeping ability information of MS in the described charging request message of air interface transmission.

21. method according to claim 19 is characterized in that, transmits the stationkeeping ability information that comprises MS in the described charging request message by Interface R3.

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