WO2011097890A1

WO2011097890A1 - Method for triggering re-authentication of terminal in idle state

Info

Publication number: WO2011097890A1
Application number: PCT/CN2010/077595
Authority: WO
Inventors: 宋建全; 刘俊羿; 骆文; 褚丽; 涂杨巍
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-02-12
Filing date: 2010-10-08
Publication date: 2011-08-18
Also published as: CN102158862A; CN102158862B

Abstract

Disclosed is a method for triggering re-authentication of a terminal in the idle state, said method including: when determining that it is required to perform the re-authentication of the terminal in the idle state, an anchor authenticator transmits indication information to an anchor paging controller; and the anchor paging controller informs the terminal in the idle state to quit the idle state and the re-authentication of the terminal is performed. The method is implemented by utilizing both paging procedure mode and terminal location update procedure mode. The present invention provides a new implementation scheme of performing re-authentication.

Description

Method for re-authentication of terminal triggering idle state

Technical field

The present invention relates to the field of wireless communications, and in particular, to a method for triggering a re-authentication of a terminal that triggers an idle state.

Background technique

Worldwide Interoperability for Microwave Access (WIMAX) is one of the existing standards for wireless communication technology. For the state of the WiMAX terminal, there are active and idle states. After the WiMAX terminal is powered on, it will complete a network access process and then enter the active state. The terminal that enters the active state interacts with the network element on the network side to perform uplink and downlink service processing. After a certain period of time, if there is no uplink and downlink traffic, the terminal will enter the idle state and enter the idle state terminal. Only the anchor paging controller (Anchor PC) will save the terminal context, while other resources ( For example, the interfaces R1, R6, R4, and the serving base station in the active state release the resources related to the terminal, and the terminal and the network only contact at a specific paging moment, so that the terminal can turn off the transceiver device at other times, thereby achieving the province. The effect of electricity.

For the terminal, in addition to the authentication required in the initial network access process, the re-authentication is performed when the condition of the re-authentication is satisfied. For an active terminal, the terminal, the serving base station, and the anchor authenticator may trigger re-authentication of the terminal. For example, when some of the timers associated with the security context (the terminal, the serving base station, the anchor authenticator) are close to the timeout or the count value is close to the maximum value, the terminal is re-authenticated. . After the terminal enters the idle mode, the network element that stores the terminal security context may also trigger re-authentication of the terminal.

Since the terminal re-authentication is performed by the terminal and the Authentication, Authorization, Accounting (AAA) server in an end-to-end manner, only the terminal can maintain the end-to-end between the terminal and the AAA server in the active state. Link, so for a terminal that is in an idle state, if re-authentication is to be performed, the idle state must be exited.

When the terminal is in an idle state, only the terminal itself and the anchor authenticator (or further including the anchor paging controller) retain the security information of the terminal in the network elements. If the terminal triggers re-authentication on itself, the terminal sends a ranging request message (RNG).

REQ) to the preferred base station, exiting the idle state mode flow; once the terminal exits the idle state mode, that is, re-entering the network, the terminal can be authenticated (which can also be considered as re-authentication), and the authentication process can rely on the prior art. carry out.

If the network side network element triggers the re-authentication of the terminal, the network side needs to notify the terminal to exit the idle state, so that the terminal performs re-authentication in the process of network re-entry. In the prior art, there are two processes involved in the interaction between the network side network element and the terminal, one is a paging process, and the other is a location update.

FIG. 1 is a paging procedure in the prior art when data is sent to a terminal, and the specific steps are as follows: Step 101: From a Home Agent (HA) to anchor data channel function

(Anchor Data Path Function, referred to as Anchor DPF) and the associated Foreign Agent (FA) send downlink data. The foreign agent FA and Anchor DPF always reside on the same Access Service Network Gateway (ASN GW) and are therefore usually represented by Anchor DPF/FA. The anchor data channel function and the foreign agent cache this downstream data.

Step 102: The anchor data channel function determines that the terminal is in an idle state, and sends an Initiate Paging Request message to the Anchor Paging Controller (Anchor PC) and an associated Location Register (LR). A request is made to anchor the paging controller (Attach PC) to terminate the terminal to activate the terminal to receive data. The location register is a distributed database, and each Anchor PC has an LR, so it is represented by Anchor PC/LR. The start paging request message contains the necessary information for the paging terminal.

Step 103: The Anchor PC/LR sends an Initiate Paging Response message to the Anchor DPF/FA, which is used to confirm whether the information of the terminal is correct in the Anchor PC/LR, and is used to confirm whether the terminal is Authorization is paged.

Step 104: If the terminal has been authorized to page, the Anchor PC/LR constructs a paging advertisement (Paging Announce) message, according to the network topology (topology unknown/topology unknown) to one of the following network elements or A plurality of paging advertisement messages are sent: a relay paging controller (Relay PC), a local paging controller (Local PC), and a base station.

Step 105, a local paging controller (Local PC) and/or a relay paging controller (Relay PC) Sending a paging announcement message to the base station;

Step 106: The base station sends a paging broadcast message (MOB_PAG-ADV) through the air interface. Step 107: After receiving the paging broadcast message, the terminal starts a location update or an idle mode exit process; where the idle mode exits the process, that is, re-enters the network. Process, the process of authentication may be performed (this authentication process can also be considered as a re-authentication process).

In the above flowchart, the logical network element Local PC, Relay PC, Anchor PC/LR, Anchor DPF/FA are all resident on the physical network element ASN-GW, and the ID of the logical network element (Anchor PC ID, Anchor ASN) The GW ID, Authenticator ID) is the ID (ASN-GW ID) of the physical network element on which it resides.

2 is a flow chart of a location update of a terminal in the prior art, and the specific steps are as follows:

Step 201: The terminal sends a ranging request message (RNG REQ) to the current preferred base station (or the serving base station) to request a location update, where the request message has an identifier of the anchor paging controller.

Step 202: The serving base station sends a location update request (LU-Req) to the current serving access network gateway (Serving ASN GW); the local paging controller resides on the current serving access network gateway; Step 203, current service access Serving ASN sends a location update request to the anchor paging controller; if the anchor paging controller resides at the current serving gateway, step 203 is not required; the current serving access network may also pass one or more The access network gateway is sent to the anchor paging controller.

Step 204: The anchor paging controller interacts with the anchor authenticator, and the anchor paging controller acquires the authentication key context (Authentication Key Context) of the terminal from the anchor authenticator; if the anchor paging controller is anchored And the anchor authenticator resides on the same physical entity, then step 204 is an internal interaction.

Step 205, after the anchor paging controller obtains the AK Context, sends a location update response message (LU-Rsp) to the serving gateway (Serving ASN GW), where the AK Context is included;

Step 206: The serving gateway sends a location update response message to the serving base station.

Step 207: The serving base station sends a ranging response message (RNG RSP) to the terminal; the message may include at least one of the following indication information: location update success, location update failure, and downlink data Send.

Step 208: The serving base station sends a location update confirmation (LU Cnf) to the serving gateway.

Step 209: The service gateway sends a location update confirmation to the Anchor PC; the Anchor PC updates the terminal idle state information, in particular the current location information. Similar to 203, if the anchor paging controller resides at the current serving gateway, step 209 is not required; the current serving access network may also be sent to the anchor paging controller via one or more relay access network gateways. .

Step 210: If the Anchor PC updates the Cipher-based Message Authentication Code (CMAC Key) in the received LU Cnf message, the Anchor PC notifies the anchor authenticator to perform CMAC. Key Count update.

As can be seen from FIG. 1, when the terminal is in an idle state, only when the Anchor DPF/FA has data to send to the terminal, the start paging request is sent to the anchor paging controller (steps 101 to 103, that is, there is data. When the delivery is triggered, the Anchor PC is triggered to perform paging, and the anchor paging controller starts paging the terminal, and instructs the terminal to exit the idle mode (steps 104 to 107, that is, the paging process performed by the Anchor PC, that is, the universal paging. Process) . The prior art does not provide a solution for triggering the terminal to exit the idle mode in other ways for subsequent (re)authentication or receiving downlink data.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method for re-authenticating a terminal that triggers an idle state, which supports re-authentication of the terminal in an idle state, and improves system performance.

In order to solve the above problem, the present invention provides a method for re-authenticating a terminal that triggers an idle state, including: The anchor authenticator determines that a re-authentication of a terminal in an idle state is required, and sends an indication information to an anchor search. The call controller; and the anchor paging controller notifies the terminal in the idle state to exit the idle state.

The above method further includes: the terminal in the idle state re-authenticating in the network re-entry after exiting the idle state.

In the above method, the step of the anchor paging controller notifying that the terminal in the idle state exits the idle state is: the anchor paging controller notifies the terminal in the idle state to exit the idle state through the paging procedure. And the step of the anchor paging controller notifying the terminal in the idle state to exit the idle state by the paging process, the method further includes: the anchor paging controller obtaining the indication information from the message sent by the anchor authenticator, or The indication message is learned from the message forwarded by the anchor data channel function.

In the above method, at least one of the following messages involved in the process of triggering the idle state of the terminal in the idle state to carry the idle state by the anchor paging controller carries the indication information: anchoring the paging controller to the following network One or more messages sent in the element: a relay paging controller, a local paging controller, a base station; a message sent by the relay paging controller to one or more of the following network elements: The next paging controller of the call controller, the local paging controller, the base station; the message sent by the local paging controller to the base station; and the message sent by the base station over the air interface.

In the above method, the step of the anchor paging controller notifying that the terminal in the idle state exits the idle state is: the anchor paging controller notifies the terminal in the idle state to exit the idle state through the terminal location update procedure.

Before the step of the anchor paging controller notifying the terminal in the idle state to exit the idle state by the terminal location update procedure, the method further includes: the anchor paging controller obtaining the indication information from the message sent by the anchor authenticator; Alternatively, the indication information is obtained from the message forwarded by the anchor data channel function; or the indication information is obtained in the process of obtaining the authentication key context from the anchor authenticator.

In the above method, at least one of the following messages involved in the terminal location update procedure carries the indication information: the message that the anchor paging controller sends to one or more of the following network elements: a relay paging controller, local a paging controller, a serving base station; a message sent by the relay paging controller to the next relay paging controller and/or the local paging controller; a message sent by the local paging controller to the serving base station where the terminal is located; And a message sent by the serving base station to the terminal.

In the above method, the indication information is at least one of the following information: performing location update, the terminal exits the idle state, the terminal performs network re-entry, initiates paging to the terminal, re-authenticates the terminal, and sends downlink data to the terminal and the location. Update the results.

In order to solve the above problem, the present invention further provides a method for triggering downlink data reception by a terminal that triggers an idle state, including: when the anchor data channel function needs to be sent to the terminal, the downlink information is sent to the anchor paging control. And anchoring the paging controller to notify that it is idle The terminal exits the idle state.

The method further includes: after the terminal in the idle state exits the idle state, the downlink data is received after the network is re-entered.

In the above method, the anchor paging controller notifies the terminal in the idle state to exit the idle state: the anchor paging controller notifies the terminal in the idle state to exit the idle state to receive the downlink data through the terminal location update procedure.

In the above method, the indication information is at least one of the following information: The terminal exits the idle state, the terminal performs network re-entry, initiates paging to the terminal, re-authenticates the terminal, and sends downlink data to the terminal and the location update result.

In the present invention, a method for initiating re-authentication of a terminal by a network-side entity when the terminal is in an idle state is provided, which is implemented by using a paging process and a location update process of the terminal, compared with the prior art. A new implementation for re-authentication is provided.

BRIEF abstract

1 is a schematic diagram of a paging process initiated by the Anchor DPF/FA in the prior art;

2 is a schematic diagram of a terminal initiated location update process in the prior art;

3 is a schematic diagram of an anchor authenticator transmitting indication information to an anchor paging controller in an embodiment; FIG. 4 is a schematic diagram of a method for re-authenticating a terminal that triggers an idle state in the first embodiment; FIG. A schematic diagram of a method for re-authenticating a terminal that triggers an idle state in the second example.

Preferred embodiment of the invention

According to the technical solution of the present invention, the present invention provides a terminal that triggers an idle state to perform heavy In the method, the network side entity (an anchor authenticator), rather than the terminal, actively triggers the terminal in the idle state to perform re-authentication.

The method of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Embodiment 1:

In the first embodiment, the triggering process for reauthenticating the terminal is completed by using a paging procedure.

The method for re-authenticating the terminal that triggers the idle state includes: The anchor authenticator needs to send the indication information to the anchor paging controller when re-authenticating the terminal in the idle state. After receiving the indication information, the anchor paging controller instructs the terminal to exit the idle state by using the paging procedure, and the terminal authenticates in the process of re-accessing the network after exiting the idle state. In this embodiment, the indication information is indication information for triggering re-authentication.

3 is a schematic diagram of an anchor authenticator transmitting indication information to an anchor paging controller, the anchor authenticator transmitting the indication information to the anchor through various flows and messages that can communicate with the anchor paging controller The paging controller is preferably; preferably, the anchor paging controller returns a response message upon receiving the indication information. For example, the anchor authenticator can send indication information to the anchor paging controller either directly or through an anchor data channel. The specific implementation may be: the anchor paging controller obtains the indication information from the message sent by the anchor authenticator, or obtains the indication message from the message forwarded by the anchor data channel function, and then anchors the paging controller to pass The paging process notifies the terminal in the idle state to exit the idle state. The message sent directly by the anchor authenticator to the anchor paging controller and the message that the anchor authenticator forwards through the anchor data channel function may be a start paging message, or other may be used to anchor the authenticator and anchor A message that communicates between paging controllers.

At least one of the following messages involved in the flow of the paging process carries the indication information (preferably, the indication information herein is the reason information of the paging): anchoring the paging controller to the following network element One or more transmitted messages (eg, paging announcement messages): a relay paging controller, a local paging controller, a base station; a message sent by the relay paging controller to one or more of the following network elements ( For example, a paging announcement message): a next paging controller of the relay paging controller, a local paging controller, a base station; a message sent by the local paging controller to the base station (eg, a paging announcement message), the base station is A message sent by the air interface (such as a paging broadcast message).

The indication information includes at least one of the following information: performing a location update, and the terminal exits the idle state, The terminal performs network re-entry, initiates paging to the terminal, re-authenticates the terminal, and sends downlink data to the terminal. A typical indication is to re-authenticate the terminal.

Embodiment 2:

In the second embodiment, the terminal re-authentication right is triggered by the terminal location update process.

The method for triggering the re-authentication of the terminal in the idle state includes: the anchor authenticator needs to send the indication information to the anchor paging controller when re-authenticating the terminal in the idle state, and anchor the paging controller from After the anchor authenticator learns the indication information for triggering the re-authentication right, the terminal is used to indicate that the terminal exits the idle state by using the terminal location update procedure, and the terminal performs (re)authentication in the process of re-accessing the network after exiting the idle state. In this embodiment, the indication information is indication information for triggering re-authentication.

The anchor paging controller receives the indication information sent by the anchor authenticator before transmitting the location update response message (step 205 of FIG. 2) (the anchor authenticator to the anchor paging controller as shown in FIG. 3) Send a schematic of the instructions). For example, before the step 205 of FIG. 2, after the indication information is obtained from the message sent by the anchor authenticator, the anchor paging controller uses the location update procedure to send the indication information to the terminal in the idle state to indicate that the terminal exits. The idle state; or; before the step 205 of FIG. 2, after the indication information is obtained from the message forwarded by the anchor data channel function, the anchor paging controller uses the location update process to send the indication information to the terminal in the idle state, Instructing the terminal to exit the idle state; or, in step 204 of FIG. 2, the anchor paging controller learns the indication information in the process of obtaining the authentication key context from the anchor authenticator, and the anchor paging controller utilizes The location update process sends an indication message to the terminal in the idle state to instruct the terminal to exit the idle state.

At least one of the following messages involved in the flow of the terminal location update procedure carries the indication information: a message that the anchor paging controller sends to one or more of the following network elements (eg, a location update response message) : a relay paging controller, a local paging controller, a serving base station; a message sent by the relay paging controller to a next paging paging controller and/or a local paging controller (eg, a location update response message) a message sent by the local paging controller to the serving base station where the terminal is located (for example, a location update response message), and a message sent by the serving base station to the terminal (for example, a ranging response message).

The indication information includes at least one of the following information: The terminal exits the idle state, and the terminal performs the network. Re-enter, initiate paging to the terminal, re-authenticate the terminal, and send downlink data to the terminal to update the location. A typical indication is to re-authenticate the terminal.

The invention is illustrated below by means of a number of specific examples.

Embodiment 1

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A process in which the anchor authenticator initiates a trigger directly to an anchor paging controller through a paging procedure in Embodiment 1 is described in detail.

As shown in FIG. 4, the specific embodiment 1 includes the following steps:

Step 401: The anchor authenticator sends a start paging request message to the Anchor PC/LR. When the anchor authenticator finds that a terminal needs to be re-authenticated, if the terminal is found to be in an idle mode, the terminal is The Anchor PC/LR of the terminal is found in the context information, and then a Start Page Request message is sent to the Anchor PC/LR of the terminal.

Preferably, the Anchor Authenticator sends a Start Page Request message to the Anchor PC/LR of the terminal only when the terminal is authorized to page.

Preferably, the start paging request message carries at least one of the following information: the identification information of the terminal, the reason information of the paging; and further, wherein the identification information of the terminal is an identifier of the terminal that needs to be re-authenticated. The reason for the paging is at least one of the following: performing location update, the terminal exiting the idle state, the terminal performing network re-entry, paging the terminal, re-authenticating the terminal, and transmitting downlink data to the terminal.

Step 402: The Anchor PC/LR sends a start paging response message to the anchor authenticator.

After the Anchor PC/LR receives the start page request message sent by the anchor authenticator, the Anchor PC/LR sends a start page response message to the anchor authenticator; the start of the page response message includes the following two aspects: Whether the terminal information saved by the Anchor PC/LR is correct, confirm whether the terminal is authorized to perform paging operations.

Steps 403-406 correspond to steps 104 through 107 in Fig. 1.

At least one of the paging announcement message of steps 403 and 404 and the paging broadcast message of step 405 carries paging cause information. When the anchor authenticator and the Anchor PC/LR are located in the same physical entity, the above steps 401 and 402 are internal interactions.

Specific embodiment 2:

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In detail, in Embodiment 1, the anchor authenticator is indirectly passed through the paging process.

The process by which the Anchor DPF/FA initiates a trigger to the anchor paging controller.

As shown in Figure 5, the following steps are included:

Step 501: The anchor authenticator sends a start paging request message to the Anchor DPF/FA. When the anchor authenticator finds that re-authentication is required for a terminal, if the terminal is found to be in an idle mode, the terminal is The ASN-GW ID (also called Anchor ASN GW ID) of the Anchor DPF/FA of the terminal is found in the context information, and then a Start Page Request message is sent to the ASN GW ID.

Preferably, the Anchor Authenticator sends a Start Paging Request message to the Anchor DPF/FA of the terminal only when the terminal is authorized to page.

Step 502: The Anchor DPF/FA forwards the received start paging request message to the Anchor PC/LR.

After the Anchor DPF/FA receives the start paging request message sent by the anchor authenticator, if the terminal is found to be in the idle mode, the ASN of the Anchor PC/LR resident of the terminal is found from the context information of the terminal. The GW ID (also known as the Anchor PC ID) then sends a Start Page Request message to the ASN GW ID.

After the Anchor PC/LR receives the start page request message sent by the Anchor DPF/FA, the Anchor PC/LR sends a start page response message to the Anchor DPF/FA; the message acts as follows: One: Confirm whether the terminal information saved by Anchor PC/LR is correct, and confirm whether to authorize paging of the terminal.

Step 504, the Anchor DPF/FA forwards the received start page response message to the anchor authenticator. Steps 505-508 are the same as 104-107 in Fig. 1.

At least one of the paging announcement message of steps 505 and 506 and the paging broadcast message of step 507 carries paging cause information.

If the anchor authenticator and the Anchor PC are in the same physical entity, then steps 501-504 are not required, and the interaction between the anchor authenticator and the anchor paging controller is an internal interaction; if the anchor authenticator and When the Anchor DPF/FA is in the same physical entity, steps 501 and 504 are internal interactions; if Anchor PC/LR and Anchor DP/FA are located in the same physical entity, then steps 502 and 503 are internal interactions.

Specific embodiment 3:

The third embodiment describes in detail the process of completing the triggering by the terminal location update process in the second embodiment. When the anchor authenticator needs to re-authenticate the terminal in the idle mode, the indication information is sent to the anchor paging controller, and the anchor paging controller instructs the terminal to exit the idle mode in the network re-entry through the terminal location update procedure. The process is authenticated.

As can be seen from FIG. 2, the existing terminal location update procedure is used for terminal trigger location update. However, the process may be further modified. At the same time as the location update, the terminal further sends other indication information to the terminal to indicate that the terminal exits the idle mode. After receiving the corresponding indication information, the terminal performs idle mode exit, and the terminal is in the network re-entry process. Perform (re)authentication.

When the anchor authenticator needs to perform re-authentication, the indication information is sent to the anchor paging controller; that is, the anchor paging controller receives the anchor authentication before sending the location update response message (step 205 of FIG. 2) The indication information sent by the device (such as step 401 in FIG. 4 or step 502 in FIG. 5), or the indication information is obtained from the anchor authentication in step 204 of FIG. The anchor paging controller notifies the terminal of the indication information through the location update procedure. After receiving the indication information, the terminal exits the idle state and performs (re)authentication in the process of re-entering the network.

At least one of the messages in steps 205-207 includes the above indication information, and the indication information is the following At least one of the information: the terminal exits the idle state, the terminal performs network re-entry, initiates paging to the terminal, re-authenticates the terminal, and sends downlink data to the terminal, and the location update result. A typical indication is to re-authenticate the terminal.

The present invention also provides a method for triggering downlink data reception by a terminal that triggers an idle state. In the prior art, when the anchor data channel function has downlink data to be sent to the idle state terminal, the paging process is generally used to enable the terminal to exit the idle state and then receive the downlink data. As shown in FIG. 1, the paging controller (one or more of the anchor paging control, the relay paging controller, and the local paging controller) in the paging process sends a search to a large number of base stations in the paging group. The paging message is sent, and a large number of base stations that receive the paging channel message by the paging group send the paging broadcast message to the paging terminal through the air interface, and in the terminal location update process, only the terminal needs to communicate with the current preferred base station. Therefore, the terminal in the terminal location update process triggers the idle state to exit the idle state for downlink data reception, which can save the network side and air interface resource overhead.

In the present invention, when the anchor data channel function has downlink data to be sent to the terminal, the location update process is used to instruct the terminal to exit the idle mode to receive the downlink data. The method specifically includes: anchoring the data channel function, when the downlink data needs to be sent to the terminal, sending the indication information to the anchor paging controller, and the anchor paging controller triggers the idle state terminal to exit the idle state to perform downlink data. Reception.

In the method, the indication message is an indication message for triggering receiving downlink data.

As can be seen from Figure 2, the location update process is now used for terminal trigger location update. However, this process can be further modified to further indicate that downlink data is sent to the terminal while the location is being updated. After receiving the corresponding indication, the terminal exits the idle mode, and the terminal exits the idle mode, that is, after re-entering the network, the downlink data can be received.

When the Anchor DP/FA has data to send to the terminal, the indication information is sent to the anchor paging controller; that is, the anchor paging controller receives the anchor data before transmitting the location update response message (step 205 of FIG. 2). The indication information sent by the channel (step 102 in FIG. 1), the anchor paging controller may notify the terminal to the terminal through the location update process; after receiving the indication information, the terminal exits the idle mode, and then the terminal re-enters the network to receive the downlink. data.

At least one of the following messages involved in the flow of the terminal location update process carries the finger Information: Anchoring a message sent by the paging controller to one or more of the following network elements (eg, location update response message): relay paging controller, local paging controller, serving base station; relay paging A message sent by the controller to the next relay paging controller and/or the local paging controller (eg, a location update response message), a message sent by the local paging controller to the serving base station where the terminal is located (eg, location update) Response message), a message sent by the serving base station to the terminal (eg, a ranging response message). That is, at least one of the messages in steps 205-207 includes the above indication message.

The indication information is at least one of the following information: The terminal exits the idle state, the terminal performs network re-entry, initiates paging to the terminal, re-authenticates the terminal, and sends downlink data to the terminal to update the location. A typical indication message is that downlink data is sent to the terminal.

In the method and embodiment of the above invention, the functions of the Anchor DPF and the Anchor DF are equivalent.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The invention provides a method for initiating re-authentication of a terminal by a network-side entity when the terminal is in an idle state, which is implemented by using a paging process and a location update process of the terminal, and provides a method compared with the prior art. A new implementation scheme for re-authentication.

Claims

Claim

A method for triggering a re-authentication of a terminal that triggers an idle state, including:

The anchor authenticator determines that it is necessary to send the indication information to the anchor paging controller when re-authenticating the terminal in the idle state;

The anchor paging controller notifies the terminal in the idle state to exit the idle state.

2. The method of claim 1 further comprising:

The terminal in the idle state performs re-authentication in the network reentry after exiting the idle state.

3. The method of claim 1, wherein

The anchor paging controller notifies the terminal in the idle state to exit the idle state: the anchor paging controller notifies the terminal in the idle state to exit the idle state through the paging procedure.

4. The method of claim 3, before the step of the anchor paging controller notifying the terminal in an idle state to exit an idle state by a paging procedure, the method further comprising: the anchor seeking The call controller learns the indication information from a message sent by the anchor authenticator, or learns the indication message from a message forwarded by the anchor data channel function.

5. The method of claim 4, wherein

The anchor paging controller notifies at least one of the following messages involved in the process of the idle state exiting the idle state by the paging procedure to carry the indication information:

The anchor paging controller sends a message to one or more of the following network elements: a relay paging controller, a local paging controller, and a base station;

The relay paging controller sends a message to one or more of the following network elements: a next paging controller of the relay paging controller, the local paging controller, and the base station;

a message sent by the local paging controller to the base station;

The message sent by the base station over the air interface.

6. The method of claim 1, wherein

The anchor paging controller notifies the terminal in the idle state to exit the idle state The anchor paging controller notifies the terminal in the idle state to exit the idle state by using the terminal location update procedure.

The method of claim 6, wherein before the step of the anchor paging controller notifying the terminal in the idle state to exit the idle state by the terminal location update procedure, the method further includes:

The anchor paging controller learns the indication information from a message sent by the anchor authenticator; or

Obtaining the indication information from a message forwarded by the anchor data channel function; or

The indication information is learned in the process of obtaining an authentication key context from the anchor authenticator.

8. The method of claim 6, wherein

At least one of the following messages involved in the terminal location update procedure carries the indication information: the anchor paging controller sends a message to one or more of the following network elements: a relay paging controller , local paging controller, serving base station;

The relay paging controller sends a message to the next paging paging controller and/or the local paging controller;

a message sent by the local paging controller to the serving base station where the terminal is located; and a message sent by the serving base station to the terminal.

The method according to any one of claims 1 to 8, wherein

The indication information is at least one of the following information: performing location update, the terminal exiting the idle state, the terminal performs network re-entry, initiates paging to the terminal, re-authenticates the terminal, and sends downlink data to the terminal and the location update result. .

10. A method for receiving downlink data reception by a terminal that triggers an idle state, comprising: an anchor data channel function, when downlink data needs to be sent to a terminal in an idle state, sending indication information to an anchor paging controller;

11. The method of claim 10, further comprising:

After the terminal in the idle state exits the idle state, the downlink data is performed after the network is re-entered. Reception.

12. The method of claim 10, wherein

And the step of the anchor paging controller notifying that the terminal in the idle state exits the idle state is: the anchor paging controller notifying, by the terminal location update procedure, that the terminal in the idle state exits the idle state, to perform Reception of downlink data.

13. The method of claim 12, wherein

The method according to any one of claims 10 to 13, wherein

The indication information is at least one of the following information: The terminal exits the idle state, the terminal performs network re-entry, initiates paging to the terminal, re-authenticates the terminal, and sends downlink data to the terminal and the location update result.