CN102158862A - Method for triggering re-authentication of terminal in idle state - Google Patents

Abstract

The invention discloses a method for triggering the re-authentication of a terminal in an idle state. The method comprises that: when judging the re-authentication is required to be performed on 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 of quitting the idle state and performing re-authentication. The method for initiating the re-authentication of the terminal by a network side entity in the idle state of the terminal is implemented by a paging flow and a mobile position updating flow. The invention provides a novel scheme for realizing the re-authentication.

Description

A method for triggering re-authentication of a terminal in an idle state

technical field

The invention relates to the field of wireless communication, in particular to a method for triggering a terminal in an idle state to perform re-authentication.

Background technique

Worldwide Interoperability for Microwave Access (WiMAX for short) is one of the existing wireless communication technology standards. For the state of the WiMAX terminal, there are active state and idle state. After the WiMAX terminal is turned on, it will complete a network access process, and then enter the activation state; the terminal in the activation state interacts with network elements on the network side to process uplink and downlink services. After a certain period of time, if there is no uplink and downlink business, the terminal will enter the idle state, and the terminal in the idle state will only save the terminal context in the anchor paging controller (Anchor Paging Controller, referred to as Anchor PC), while other resources ( For example, in the active state, interfaces R1, R6, R4, and the serving base station, etc.) will release the resources related to the terminal, and the terminal and the network will only contact the network at a specific paging time, so that the terminal can turn off the transceiver equipment at other times to achieve saving The effect of electricity.

For the terminal, in addition to the authentication required during the initial network access process, re-authentication will be performed when the conditions for re-authentication are met. For a terminal in an active state, the terminal, the serving base station, and the anchor authenticator may all trigger re-authentication of the terminal. For example, when certain timers related to the security context (Security Context) of these network elements (terminals, serving base stations, and anchor authenticators) are close to timeout or the count value is close to the maximum value, it will trigger re-authentication of the terminal . When the terminal enters the idle mode, the network element storing the security context of the terminal may also trigger re-authentication of the terminal.

Since terminal re-authentication is performed by the terminal and the Authentication, Authorization, Accounting (AAA) server in an end-to-end manner, only when the terminal is in the activated state can the end-to-end connection between the terminal and the AAA server be maintained. Link, so for a terminal in the 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 network elements such as the terminal itself and the anchor authenticator (or further including the anchor paging controller) store the security information of the terminal.

If the terminal triggers to re-authenticate itself, the terminal will send a ranging request message (RNG REQ) to the preferred base station to exit the idle state mode process; once the terminal exits the idle state mode, that is, re-enter the network, and then re- The authentication of the terminal during network access (also considered as re-authentication) can be accomplished by relying on existing technologies.

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

Fig. 1 is the paging process when there is data sent to the terminal in the prior art, the specific steps are as follows:

Step 101, sending downlink data from the Home Agent (HA for short) to the Anchor Data Path Function (Anchor DPF for short) and the associated Foreign Agent (FA for short). The foreign agent FA and Anchor DPF always reside on the same access service network gateway (ASN GW), so it is usually represented by AnchorDPF/FA. The anchor data channel function and the foreign agent cache this downstream data.

Step 102, the anchor data channel function judges that the terminal is in an idle state, and sends an Initiate Paging Request message (Initiate Paging Request) to the anchor paging controller (Anchor PC) and the associated location register (Location Register, LR for short), The anchor paging controller (AnchorPC) is requested to page the terminal in order 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 paging start request message contains the necessary information of the paging terminal.

Step 103, the Anchor PC/LR sends an Initiate Paging Response message (Initiate Paging Response) to the Anchor DPF/FA, which is used to confirm whether the information of the terminal in the Anchor PC/LR is correct on the one hand, and is used to confirm whether the terminal is Authorization to be paged.

Step 104, if the terminal has been authorized for paging, the Anchor PC/LR constructs a Paging Announce (Paging Announce) message, and sends it to one or more of the following network elements according to the network topology (topology known/topology unknown) Paging announcement message (Paging-Announce): relay paging controller (Relay PC), local paging controller (Local PC), base station.

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

Step 106, the base station sends a paging broadcast message (MOB_PAG-ADV) through the air interface;

Step 107, after the terminal receives the paging broadcast message, it starts the location update or idle mode exit process; wherein for the idle mode exit process, that is, the re-entry process, the authentication process may be performed (also can be considered as a re-authentication process) .

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

Fig. 2 is a flow chart of terminal location updating 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 called the serving base station) to request location update, and the request message contains the 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); a local paging controller resides on the current serving access network gateway;

Step 203, the current serving access network (Serving ASN) sends a location update request to the anchor paging controller; if the anchor paging controller resides in the current serving gateway, step 203 is not required; the current serving access network also It may be sent to the anchor paging controller via one or more trunk access network gateways.

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

Step 205, after the anchor paging controller obtains the AK Context, it sends a location update response message (LU-Rsp) to the serving gateway (ServingASN GW), which contains the AK Context;

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, downlink data transmission.

Step 208, the serving base station sends a location update confirmation (LU Cnf) to the serving gateway;

In step 209, the service gateway sends a location update confirmation to the Anchor PC; the Anchor PC updates the idle state information of the terminal, especially the current location information. Similar to 203, if the anchor paging controller resides in the current serving gateway, then step 209 is not required; the current serving access network may also send to the anchor paging controller through one or more relay access network gateways .

Step 210, if the Anchor PC receives an update based on the encrypted message authentication code key (Cipher-based Message Authentication Code CMAC Key, CMACKey) in the received LU Cnf message, the Anchor PC notifies the anchor authenticator to perform the CMAC Key CountUpdate.

It can be seen from Figure 1 that when the terminal is in the idle state, only when the Anchor DPF/FA has data to send to the terminal, it sends a paging start request to the anchor paging controller (steps 101 to 103, that is, there is data Trigger the Anchor PC to perform paging when issuing), let the anchor paging controller start paging the terminal, and instruct the terminal to exit the idle mode (step 104 to step 107, that is, the paging process performed by the Anchor PC, which is a general paging process). The prior art does not provide a solution for triggering the terminal to exit the idle mode in other ways so as to perform subsequent (re)authentication or receive downlink data and other processes.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for triggering re-authentication of terminals in an idle state, to support re-authentication of terminals in an idle state, and to improve system performance.

In order to solve the above problems, the present invention provides a method for triggering re-authentication of a terminal in an idle state, including: when the anchor authenticator judges that re-authentication needs to be performed on a terminal in an idle state, sending indication information to the anchor authenticator A paging controller, the anchor paging controller notifies the terminal in the idle state to exit the idle state.

Further, the above method also has the following characteristics:

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

Further, the above method also has the following characteristics:

The anchor paging controller notifying the terminal in the idle state to exit the idle state refers to: the anchor paging controller notifies the terminal in the idle state to exit the idle state through a paging process.

Further, the above method also has the following characteristics:

Before the anchor paging controller notifies the terminal in the idle state to exit the idle state through a paging process, it obtains the indication information from the message sent by the anchor authenticator, or obtains the indication information from the anchor data channel function The indication message is obtained from the forwarded message.

Further, the above method also has the following characteristics:

At least one of the following messages involved in the process of the anchor paging controller triggering the terminal in the idle state through the paging process carries the indication information: the anchor paging controller sends one or more of the following network elements A message sent by: trunk paging controller, local paging controller, base station; a message sent by the trunk paging controller to one or more of the following network elements: the next one of the trunk paging controller Paging controller, local paging controller, base station; messages sent by the local paging controller to the base station; messages sent by the base station on the air interface.

Further, the above method also has the following characteristics:

The anchor paging controller notifying the terminal in the idle state to exit the idle state refers to: the anchor paging controller notifies the terminal in the idle state to exit the idle state through a terminal location update procedure.

Further, the above method also has the following characteristics:

The anchor paging controller obtains the indication information from the message sent by the anchor authenticator before notifying the terminal in the idle state through the terminal location update process to exit the idle state; or; the anchor paging controller Before notifying the terminal in the idle state to exit the idle state through the terminal location update process, the controller obtains the indication information from the message forwarded by the anchor data channel function; or; the anchor paging controller obtains the indication information from the anchor The authenticator obtains the indication information during the process of obtaining the authentication key context.

Further, the above method also has the following characteristics:

At least one of the following messages involved in the location update process carries the indication information: a message sent by the anchor paging controller to one or more of the following network elements: 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 a local paging controller; a message sent by the local paging controller to the serving base station where the terminal is located Message: a message sent by the serving base station to the terminal.

Further, the above method also has the following characteristics:

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

In order to solve the above problems, the present invention also provides a method for triggering a terminal in an idle state to receive downlink data, including: when the anchor data channel function has downlink data to be sent to the terminal, sending instruction information to the anchor paging control The anchor paging controller notifies the terminal in the idle state to exit the idle state.

Further, the above method also has the following characteristics:

After the terminal in the idle state exits the idle state, it receives downlink data after network re-entry.

Further, the above method also has the following characteristics:

The anchor paging controller notifies the terminal in the idle state to exit the idle state to receive downlink data through a terminal location update procedure.

Further, the above method also has the following characteristics:

At least one of the following messages involved in the location update process carries the indication information: a message sent by the anchor paging controller to one or more of the following network elements: 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 a local paging controller; a message sent by the local paging controller to the serving base station where the terminal is located Message: a message sent by the serving base station to the terminal.

Further, the above method also has the following characteristics:

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 for the terminal, performs re-authentication for the terminal, has downlink data sent to the terminal, and location update result.

In the present invention, a method for re-authentication of a terminal initiated by a network-side entity when the terminal is in an idle state is provided, which is implemented in two ways, the paging process and the terminal location update process. Compared with the prior art, it provides A new implementation scheme for re-authentication is proposed.

Description of drawings

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

Fig. 2 is a schematic diagram of a flow of a location update initiated by a terminal in the prior art;

Fig. 3 is a schematic diagram of an anchor authenticator sending indication information to an anchor paging controller in an embodiment;

FIG. 4 is a schematic diagram of a method for triggering a terminal in an idle state to perform re-authentication in Embodiment 1;

Fig. 5 is a schematic diagram of a method for triggering re-authentication of a terminal in an idle state in the second embodiment.

Detailed ways

In the present invention, in the method for triggering re-authentication of a terminal in an idle state, the network-side entity (anchor authenticator) rather than the terminal actively triggers the re-authentication of a terminal in an idle state. Including the following two examples:

Embodiment one:

In the first embodiment, the completion of the paging process is used to trigger the terminal.

The method for triggering the re-authentication of the terminal in the idle state includes: when the anchor authenticator needs to re-authenticate the terminal in the idle state, sending indication information to the anchor paging controller. After receiving the indication information, the anchor paging controller uses a paging process to instruct the terminal to exit the idle state, and the terminal performs (re)authentication in the process of re-connecting to the network after exiting the idle state. In this embodiment, the indication information is indication information for triggering re-authentication.

Fig. 3 is a schematic diagram of the anchor authenticator sending instruction information to the anchor paging controller. The anchor authenticator can send the instruction information to the anchor paging controller through various processes and messages that can communicate with the anchor paging controller. The anchor paging controller; preferably, the anchor paging controller returns a response message after receiving it. For example, the anchor authenticator may send the indication information to the anchor paging controller directly or through the 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 the anchor paging controller obtains the indication information through 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 forwarded by the anchor authenticator through the anchor data channel function can be the start paging message, or other messages that can be used by the anchor authenticator and the anchor Paging messages communicated between controllers.

At least one of the following messages involved in the paging process carries the indication information (preferably, the indication information here is the cause information of paging): the anchor paging controller sends the following network elements One or more messages sent (such as paging notification messages): relay paging controller, local paging controller, base station; messages sent by the relay paging controller to one or more of the following network elements ( Such as paging notification message): the next paging controller, local paging controller, and base station of this relay paging controller; the message (such as paging notification message) sent by the local paging controller to the base station, the base station is in Messages sent over the air interface (such as paging broadcast messages).

The indication information includes at least one of the following information: perform location update, the terminal exits the idle state, the terminal performs network re-entry, initiates paging for the terminal, performs re-authentication for the terminal, and sends downlink data to the terminal. Typical indication information is to re-authenticate the terminal.

Embodiment two:

In the second embodiment, a terminal location update process is used to trigger the terminal.

The method for triggering the re-authentication of the terminal in the idle state includes: when the anchor authenticator needs to re-authenticate the terminal in the idle state, send the indication information to the anchor paging controller, and the anchor paging controller After learning the indication information for triggering re-authentication, the anchor authenticator uses the terminal location update process to instruct the terminal to exit the idle state, and the terminal performs (re)authentication during the process of re-connecting to 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 sending the location update response message (step 205 of Figure 2) (the anchor authenticator as shown in Figure 3 sends the anchor paging controller Schematic diagram of sending instructions). For example, before step 205 in Figure 2, after learning the indication information from the message sent by the anchor authenticator, the anchor paging controller uses the location update process to send indication information to the terminal in the idle state to instruct the terminal to exit Idle state; or; before step 205 in Figure 2, after learning the indication information 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 to Instruct the terminal to exit the idle state; or, in step 204 in FIG. 2 , the anchor paging controller learns the indication information during the process of obtaining the authentication key context from the anchor authenticator, and the anchor paging controller utilizes The location update process sends indication information 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 terminal location update procedure carries the indication information: a message sent by the anchor paging controller to one or more of the following network elements (such as a location update response message) : relay paging controller, local paging controller, serving base station; message sent by the relay paging controller to the next relay paging controller and/or local paging controller (such as 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, the terminal performs network re-entry, initiates paging for the terminal, performs re-authentication for the terminal, has downlink data sent to the terminal, and location update result. Typical indication information is to re-authenticate the terminal.

The present invention is illustrated below through multiple specific examples.

Specific embodiment one:

Specific Embodiment 1 Describes in detail the process in which the anchor authenticator directly initiates a trigger to the anchor paging controller through a paging process in Embodiment 1.

As shown in Figure 4, the specific embodiment one includes the following steps:

Step 401, the anchor authenticator sends a 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 idle mode, it will find the Anchor PC/LR of the terminal from the context information of the terminal, and then report to the Anchor PC/LR of the terminal. The LR sends a start paging request message.

Preferably, only when the terminal is authorized to be paged, the Anchor Authenticator sends a paging start request message to the Anchor PC/LR of the terminal.

Preferably, the paging start request message carries at least one of the following information: terminal identification information, paging reason information; further, the terminal identification information is an identification of a terminal requiring re-authentication. The reason for paging is at least one of the following: performing location update, the terminal exiting the idle state, the terminal performing network re-entry, initiating paging for the terminal, performing re-authentication for the terminal, and sending downlink data to the terminal.

In step 402, the Anchor PC/LR sends a paging start response message to the anchor authenticator.

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

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

At least one of the paging announcement messages in steps 403 and 404 and the paging broadcast message in 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 two:

The specific embodiment 2 describes in detail the process in which the anchor authenticator initiates a trigger to the anchor paging controller indirectly through the Anchor DPF/FA through the paging process in the first embodiment.

As shown in Figure 5, it includes the following steps:

Step 501, the anchor authenticator sends a paging start request message to the Anchor DPF/FA;

When the anchor authenticator finds that a certain terminal needs to be re-authenticated, if it finds that the terminal is in idle mode, it finds the ASN-GW ID (also known as the ASN-GW ID) where the Anchor DPF/FA of the terminal resides from the context information of the terminal. called Anchor ASN GW ID), and then send a start paging request message to the ASN GW ID.

Preferably, only when the terminal is authorized to be paged, the Anchor Authenticator sends a paging start request message to the Anchor PC/LR of the terminal.

Preferably, the paging start request message carries at least one of the following information: terminal identification information, paging reason information; further, the terminal identification information is an identification of a terminal requiring re-authentication. The reason for paging is at least one of the following: performing location update, the terminal exiting the idle state, the terminal performing network re-entry, initiating paging for the terminal, performing re-authentication for the terminal, and sending downlink data to the terminal.

Step 502, the Anchor DPF/FA forwards the received start paging request message to the Anchor PC/LR;

When the Anchor DPF/FA receives the start paging request message sent by the anchor authenticator, if it finds that the terminal is in idle mode, it will find the ASN-GW where the AnchorPC/LR of the terminal resides from the context information of the terminal ID (also known as Anchor PC ID), and then send a start paging request message to the ASN GW ID.

Step 503, Anchor PC/LR sends a start paging response message to Anchor DPF/FA;

After the Anchor PC/LR receives the start paging request message sent by the Anchor DPF/FA, the AnchorPC/LR sends a start paging response message to the Anchor DPF/FA; Check whether the terminal information is correct, and confirm whether the terminal is authorized to be paged.

In step 504, the Anchor DPF/FA forwards the received start paging response message to the anchor authenticator.

Steps 505-508 are the same as steps 104-107 in FIG. 1 .

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

If the anchor authenticator and the Anchor PC are located in the same physical entity, 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 Anchor DPF/FA is located in the same physical entity, steps 501-502 are internal interactions; if Anchor PC/LR and Anchor DP/FA are located in the same physical entity, steps 503 and 504 are internal interactions.

Specific embodiment three:

The specific embodiment three describes in detail the process of completing the triggering through the terminal location update process in the second embodiment. When the anchor authenticator needs to re-authenticate the terminal in idle mode, it sends indication information to the anchor paging controller, and the anchor paging controller instructs the terminal to exit the idle mode through the terminal location update process at the time of network re-entry Perform (re)authentication during the process.

It can be seen from FIG. 2 that the existing terminal location update process is used for the terminal to trigger location update. However, this process can be further modified. At the same time as the location is updated, other indication information is sent to the terminal to instruct the terminal to exit the idle mode; Perform (re)authentication.

When the anchor authenticator needs to re-authenticate, it sends indication information 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 Figure 2) The indication information sent by the router (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 in FIG. 2 . The anchor paging controller notifies the terminal of the indication information through a location update process. After receiving the indication information, the terminal exits the idle state, and performs (re)authentication during 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 at least one of the following information: the terminal exits the idle state, the terminal performs network re-entry, initiates paging for the terminal, performs re-authentication for the terminal, There is downlink data sent to the terminal, and the location update result. Typical indication information is to re-authenticate the terminal.

The invention also provides a method for triggering a terminal in an idle state to receive downlink data. In the prior art, when the anchor data channel function has downlink data to be sent to a terminal in an idle state, a paging process is generally used to make the terminal exit the idle state and then receive the downlink data. As shown in Figure 1, in the paging process, the paging controller (one or more of the anchor paging controller, the relay paging controller and the local paging controller) sends paging to a large number of base stations in the paging group. Paging notification messages, and a large number of base stations that receive paging channel messages in the paging group send paging broadcast messages to paging terminals 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 present invention uses the terminal location update process to trigger the idle terminal to exit the idle state to receive downlink data, which can save the overhead of network side and air interface resources.

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. This method specifically includes: when the anchor data channel function has downlink data that needs to be sent to the terminal, the instruction information is sent to the anchor paging controller, and the anchor paging controller triggers the terminal in the idle state to exit the idle state for downlink data reception.

In this method, the indication message is an indication message used to trigger reception of downlink data.

It can be seen from FIG. 2 that the current location update process is used for the terminal to trigger location update. However, this process can be further modified, and it can be further used to indicate that there is downlink data to be sent to the terminal while the location is updated. The terminal exits the idle mode after receiving the corresponding instruction, and the terminal exits the idle mode, that is, after re-connecting to the network, it can receive downlink data.

When the Anchor DP/FA has data to send to the terminal, it sends indication information to the anchor paging controller; that is, the anchor paging controller receives the anchor data before sending the location update response message (step 205 of Figure 2) For the indication information sent by the channel (step 102 in Figure 1), the anchor paging controller can notify the terminal of the indication information 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 terminal location update procedure carries the indication information: a message sent by the anchor paging controller to one or more of the following network elements (such as a location update response message) : relay paging controller, local paging controller, serving base station; message sent by the relay paging controller to the next relay paging controller and/or local paging controller (such as 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). 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 for the terminal, performs re-authentication for the terminal, has downlink data sent to the terminal, and location update result. Typical indication information is that downlink data is sent to the terminal.

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

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (14)

1. a terminal that triggers idle condition is carried out the method for discrimination weight, it is characterized in that,

Anchoring authentication device is judged in the time of need carrying out discrimination weight to the terminal that is in idle condition, sends indication information to anchoring paging controller, and the terminal of described anchoring paging controller notice idle condition exits from idle status.

2. the method for claim 1 is characterized in that,

The network of the terminal of described idle condition after exitting from idle status carries out discrimination weight in reentrying.

3. the method for claim 1 is characterized in that,

The terminal of described anchoring paging controller notice idle condition exits from idle status and is meant: described anchoring paging controller exits from idle status by the terminal of paging flow process notice idle condition.

4. method as claimed in claim 3 is characterized in that,

Before the terminal of described anchoring paging controller by paging flow process notice idle condition exits from idle status, from the message that described anchoring authentication device sends, know described indication information, perhaps, from the message that described grappling datapath function is transmitted, know described Indication message.

5. method as claimed in claim 4 is characterized in that,

One of at least carry described indication information in the following message that relates in the process of described anchoring paging controller by the terminal of paging trigger flow idle condition:

The message of the one or more transmissions of anchoring paging controller in following network element: relaying paging controller, local paging controller, base station;

The message of the one or more transmissions of relaying paging controller in following network element: the next paging controller of this relaying paging controller, local paging controller, base station;

The message that local paging controller sends to the base station;

The message of base station interface transmission aloft.

6. the method for claim 1 is characterized in that,

The terminal of described anchoring paging controller notice idle condition exits from idle status and is meant: described anchoring paging controller exits from idle status by the terminal of updating of terminal position flow process notice idle condition.

7. method as claimed in claim 6 is characterized in that,

Before the terminal of described anchoring paging controller by updating of terminal position flow process notice idle condition exits from idle status, from the message that described anchoring authentication device sends, know described indication information; Perhaps;

Before the terminal of described anchoring paging controller by updating of terminal position flow process notice idle condition exits from idle status, from the message that described grappling datapath function is transmitted, know described indication information; Perhaps;

Described anchoring paging controller is known described indication information the process of obtaining authentication key contexts from described anchoring authentication device.

8. method as claimed in claim 6 is characterized in that,

Following each message that relates in the process that described position is upgraded is carried one of at least described indication information: the message of the one or more transmissions of anchoring paging controller in following network element: relaying paging controller, local paging controller, serving BS;

The relaying paging controller is to the message of next relaying paging controller and/or the transmission of local paging controller;

Local paging controller is to the message of the serving BS transmission at described terminal place;

The message that serving BS sends to described terminal.

9. as the described method of arbitrary claim in the claim 1 to 8, it is characterized in that,

Indication information be in the following information one of at least: carry out the position and upgrade, terminal exits from idle status, and terminal is carried out network and reentried, and terminal is initiated paging, and terminal is carried out discrimination weight, has downlink data to send to terminal, and the result is upgraded in the position.

10. a terminal that triggers idle condition is carried out the method that downlink data receives, it is characterized in that,

When the grappling datapath function has downlink data to be issued to terminal, send indication information to anchoring paging controller, the terminal of described anchoring paging controller notice idle condition exits from idle status.

11. method as claimed in claim 10 is characterized in that,

After the terminal of described idle condition exits from idle status, after reentrying, network carries out the reception of downlink data.

12. method as claimed in claim 10 is characterized in that,

Described anchoring paging controller exits from idle status to carry out the reception of downlink data by the terminal of updating of terminal position flow process notice idle condition.

13. method as claimed in claim 12 is characterized in that,

Following each message that relates in the process that described position is upgraded is carried one of at least described indication information: the message of the one or more transmissions of anchoring paging controller in following network element: relaying paging controller, local paging controller, serving BS;

The relaying paging controller is to the message of next relaying paging controller and/or the transmission of local paging controller;

Local paging controller is to the message of the serving BS transmission at described terminal place;

The message that serving BS sends to described terminal.

14. as the described method of arbitrary claim in the claim 10 to 13, it is characterized in that,

Indication information be in the following information one of at least: terminal exits from idle status, and terminal is carried out network and reentried, and terminal is initiated paging, and terminal is carried out discrimination weight, has downlink data to send to terminal, and the result is upgraded in the position.

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