WO2012041136A1

WO2012041136A1 - Method, device, and system for transmitting priority alarm information

Info

Publication number: WO2012041136A1
Application number: PCT/CN2011/078832
Authority: WO
Inventors: 于琦; 郭小龙
Original assignee: 华为技术有限公司
Priority date: 2010-09-30
Filing date: 2011-08-24
Publication date: 2012-04-05
Also published as: CN102448145A; CN102448145B

Abstract

Disclosed are a method, device, and system for transmitting priority alarm information, the method for transmitting the priority alarm information comprising: a mobility management network element obtains subscription data of a machine type communications (MTC) device; if the mobility management network element determines, based on the subscription data of the MTC device, an access point name (APN) subscribed by the MTC device activated the priority alarm (PA) feature, then notifies the gateway device to create the PA bearer corresponding to the APN for the MTC device, thereby facilitating the MTC device in transmitting the PA information through the PA bearer to an MTC server corresponding to the APN. The technical scheme provided in the embodiment of the present invention is beneficial to the MTC device in the efficient and flexible transmission of the PA information.

Description

Method, device and system for transmitting priority alarm information

This application claims priority to Chinese Patent Application No. 201010505863.6, entitled "Method and Apparatus for Passing Priority Alarm Information", filed on September 30, 2010, the entire contents of which are incorporated by reference. In this application. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for transmitting priority alarm information. Background technique

MTC (Machine Type Communications) application refers to network communication between one or more network elements without human intervention, such as traffic control and management, remote meter reading, remote monitoring, mobile payment , location tracking, medical monitoring and other applications. For a service such as remote monitoring, a typical scenario is that the sensor node acquires information about the environment, and then transmits the environmental data to the corresponding control node through wireless communication, and the control node performs different processing according to the environmental data.

The standard defined MTC feature includes the transmission of priority alarm (PA, Priority Alarm) information. In some application scenarios, such as when a machine type communication device (MTC Device) is stolen or illegally used, the MTC Device may be required. The relevant alarm information is transmitted to the MTC Server, and the MTC Device is required to notify the MTC Server of the PA information even when the MTC Device is in a service limited state such as limited roaming and limited location area.

There is currently no specific solution for how to effectively transmit PA information. Summary of the invention

Embodiments of the present invention provide a method, device, and system for transmitting priority alarm information, to effectively perform

Delivery of PA information.

To solve the above technical problem, the embodiment of the present invention provides the following technical solutions:

A method for transmitting priority alarm information includes:

The mobility management network element acquires subscription data of the machine type communication MTC device; The APN activates the priority alarm PA feature, and then notifies the gateway device to create a PA bearer corresponding to the APN for the MTC device, so that the MTC device transmits the PA information to the MTC server corresponding to the APN through the PA bearer. .

A mobility management network element, including:

An obtaining module, configured to acquire subscription data of a machine type communication MTC device;

Determining, by the notification module, that the gateway device is configured to create a priority alarm PA characteristic for the MTC device, if the access point name APN of the MTC device is activated according to the subscription data of the MTC device, and the gateway device is notified to create the corresponding APN for the MTC device. The PA bearer, so that the MTC device transmits the PA information to the MTC server corresponding to the APN through the PA bearer.

A communication system comprising:

a mobility management network element, configured to acquire the subscription data of the machine type communication MTC device; if the PA feature is based on the priority alarm, notify the gateway device to create a PA bearer corresponding to the APN for the MTC device;

a gateway device, configured to create a PA bearer corresponding to the APN for the MTC device according to the notification of the mobility management network element, so that the MTC device passes the PA bearer to the MTC server corresponding to the APN Pass the PA information.

It can be seen that, in the embodiment of the present invention, the mobility management network element notifies the gateway device to create a PA bearer corresponding to the APN for the MTC device, so that the MTC device can pass the MPU. The PA bearer transmits PA information to the MTC server corresponding to the APN. Based on the mechanism, the mobility management network element can create a PA bearer for the MTC device in advance or according to the indication of the MTC device, thereby facilitating the flexible and efficient delivery of the PA information by the MTC device. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is merely some embodiments of the present invention, and other drawings may be obtained from those skilled in the art without departing from the drawings. FIG. 1 is a schematic diagram of a topological connection of a SAE communication system according to an embodiment of the present invention; FIG. 1 is a schematic diagram of a topology connection of a WCDMA communication system according to an embodiment of the present invention; FIG. 3 is a schematic flowchart of another method for transmitting PA information according to an embodiment of the present invention; FIG. 4 is a flowchart of another method for transmitting PA information according to an embodiment of the present invention; FIG. 5 is a schematic flowchart of another method for transmitting PA information according to an embodiment of the present invention; FIG. 6 is a schematic flowchart of another method for transmitting PA information according to an embodiment of the present invention; FIG. 8 is a schematic flowchart of another method for transmitting PA information according to an embodiment of the present invention; FIG. 9 is a schematic diagram of another method for transmitting PA information according to an embodiment of the present invention; FIG. 10 is a schematic diagram of a mobility management network element according to an embodiment of the present invention; FIG.

FIG. 11 is a schematic diagram of a communication system according to an embodiment of the present invention. detailed description

Embodiments of the present invention provide a method, device, and system for transmitting priority alarm information, which can be effectively performed

Delivery of PA information.

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope should fall within the scope of the present invention.

In an actual application, one MTC device can subscribe to multiple access point names (APN, Access Point Name) „ and the subscription of the MTC device to the PA service can be based on the access point name, for example, an MTC device has signed 3 APN, including APN1, APN2, and APN3 (1 APN may correspond to 1 MTC server). If APN1 and APN3 activate the PA feature (APA activates the PA feature, indicating that the APN has subscribed to the PA service), the MTC The device needs to deliver PA information to the MTC server corresponding to APN1 and APN3.

The mobility management network element referred to in the embodiment of the present invention is an entity that can implement the terminal mobility management logic function, and may have different names, locations, and product forms in different networks, and the mobility management network. For example, the element may be: a mobility management entity (MME, Mobility Management Entity) in a communication system (SAE, System Architecture Evolution), and a Wideband Code Division Multiple Access (WCDMA) communication system. General Packet Radio Service Support Node (SGSN), CDMA (Code Division Multiple Access) network, entity with mobility management logic function, global An access service network gateway (ASN GW, Access Service Network Gateway) in an interconnected microwave access network, or an entity that implements mobility management logic functions in other networks.

Referring to FIG. 1-a, in the SAE communication system, the MTC device can access the mobility management entity MME of the core network and the Serving Gateway (SGW) through the evolved base station (eNB), and connect to the packet through the S-GW. Data Network Gateway (PGW, Packet Data Network Gateway). The PGW can be connected to an MTC server in the service network.

Referring to Figure 1-b, in the WCDMA communication system, the MTC device arrives at the radio network controller (RNC, Radio Network Controller) via the base station (NodeB) and then accesses the SGSN of the core network, and connects to the GPRS gateway node (GGSN through the SGSN, Gateway GPRS Support Node ). The GGSN can be connected to an MTC server in the service network. An embodiment of the method for transmitting the priority alarm information in the embodiment of the present invention may include: the mobility management network element acquiring the subscription data of the machine type communication MTC device; determining the APN signed by the MTC device according to the subscription data of the MTC device When the priority alarm PA feature is activated, the gateway device is notified to create a PA bearer corresponding to the APN for the MTC device, so that the MTC device transmits the PA information to the MTC server corresponding to the APN through the PA bearer.

Please refer to Figure 1. The specific steps may include:

110. The mobility management network element acquires subscription data of the MTC device.

In an application scenario, when the subscription data of the MTC device changes (for example, the MTC device modifies the related service of the subscribed APN or newly subscribed to the APN), or when the MTC device is attached to the network, the home subscription user server (HSS) The Home Subscriber Server can actively send the subscription information of the subscription data of the MTC device to the MME. Of course, the mobility management network element can request the contract data of the MTC device from the HSS. The subscription data of the MTC device may include indication information of whether the APN signed by the MTC device activates the PA feature, and other information.

The mobility management network element determines, according to the subscription data of the MTC device, that the APN signed by the MTC device activates the priority alarm PA feature, and notifies the gateway device to create a PA bearer corresponding to the APN for the MTC device, so as to facilitate the foregoing MTC. The device transmits the PA information to the MTC server corresponding to the APN through the PA bearer.

In an actual application, after the mobility management network element learns that the APN signed by the MTC device activates the priority alarm PA feature, the mobility management network element may notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, so that the MTC device has a subsequent pair. When the PA information of the APN needs to be transmitted, the PA information can be directly transmitted to the MTC server corresponding to the APN through the created PA bearer. Or, the mobility management network element may also notify the gateway device to create a PA bearer corresponding to the APN for the MTC device when the MTC device indicates that the PA information of the corresponding APN (the APN has activated the PA feature) needs to be delivered. After the PA bearer is established, the MTC device can transmit the PA information to the MTC server corresponding to the APN through the PA bearer.

In an application scenario, before the mobility management network element notifies the gateway device to create the PA bearer corresponding to the APN, the MTC device may further include: receiving the PA information delivery indication sent by the MTC device and the foregoing APN. If the MTC device needs to transmit the PA information corresponding to an APN, the MTC device may transmit the PA information delivery indication and the APN to the mobility management network element through a message (for example, through a non-access stratum message), of course, The PA information delivery indication and the APN can be transmitted to the mobility management network element through two messages, to notify the network side MTC device that the PA information corresponding to the APN needs to be transmitted, and the mobility management network element knows that the MTC device has correspondingly After the PA information of the APN needs to be delivered, the gateway device is notified to create a PA bearer corresponding to the APN for the MTC device.

In an actual application, the mobility management network element receiving the PA information delivery indication and the APN sent by the MTC device may include: receiving an attach request message from the MTC device, where the attach request message carries an APN and a PA information delivery indication; or, receiving a service request message from the MTC device, the service request message carrying an APN and a PA information delivery indication; or receiving a bearer resource modification message from the MTC device, the bearer resource modification message carrying an APN and a PA information delivery indication; or receiving from the MTC The device's packet data network (PDN, Packet Data Network) connects to the request message, and the PDN connection request message carries the APN and PA information delivery indication. The receiving, by the mobility management network element, the PA information delivery indication and the APN sent by the MTC device may further include: receiving an APN-attached attachment request message from the MTC device, and receiving the access network device receiving the MTC device from the MTC device. After transmitting a radio resource control (RRC, Radio Resource Control) message (for example, an RRC connection request message or an RRC connection completion message) corresponding to the PA information transmission indication of the APN, the PA information transmission instruction corresponding to the APN is sent; or Receiving a service request message carrying an APN from the MTC device, and receiving, by the access network device, an RRC message carrying the PA information delivery instruction corresponding to the APN from the MTC device, sending the PA information corresponding to the APN Passing the indication; or receiving the bearer resource modification message carrying the APN from the MTC device, and receiving the RRC message from the MTC device carrying the PA information delivery indication corresponding to the APN from the MTC device, Sending a PA information delivery indication corresponding to the APN; or receiving a PDN connection carrying an APN from the MTC device Receiving the request message, and receiving the RRC message from the MTC device that carries the PA information delivery indication corresponding to the APN, and sending the PA information delivery instruction corresponding to the APN.

In an application scenario, the mobility management network element notifying the gateway device to create a PA bearer corresponding to the APN for the MTC device may include: sending a setup session request message to the gateway device, to notify the gateway device to create the corresponding APN for the MTC device. The PA bearer, the setup session request message carries the APN and the PA feature activation indication, or sends a modify bearer command to the gateway device to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the modify bearer command Carrying the default bearer identifier information and the PA feature activation indication corresponding to the APN; or sending a modify bearer request message to the gateway device, to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the modify bearer request carries the foregoing The default bearer identifier information and the PA feature activation indication corresponding to the APN; or, the bearer resource modification message is sent to the gateway device, to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the bearer resource modification message carries the APN Corresponding default bearer identification information and PA feature activation indication. The gateway device can learn that the APN of the MTC device activates the PA feature, and then creates a PA bearer corresponding to the APN for the MTC device. The gateway device can create a new 7 A corresponding APN, and use it as the MTC. The device corresponds to the PA bearer of the APN, or the existing bearer corresponding to the APN can be modified. The modified bearer is used as the PA bearer of the APN corresponding to the MTC device. Modifying the existing bearer or creating a new bearer can be regarded as creating the MTC device. Corresponding to the manner of the PA bearer of the above APN. For example, if a PA-specific bearer needs to be created for transmitting the PA information corresponding to an APN, the gateway device may initiate a bearer activation process to create a PA bearer corresponding to the APN for the MTC device; or the gateway device may also initiate a bearer modification process, and modify The default bearer or other bearer corresponding to the APN is used as the PA bearer corresponding to the APN created for the MTC device.

After the PA7 of the corresponding APN is established, the MTC device can transmit PA information to the MTC server corresponding to the APN through the PA7.

It can be understood that the gateway device (GW, Gateway) mentioned in this embodiment may be the SGW and the PGW in the SAE communication system, the mobility management network element may be the MME, or the gateway device may also be the GGSN in the WCDMA system. The mobility management network element may be an SGSN or a similar network element in other systems.

It can be seen that, in this embodiment, the mobility management network element notifies the gateway device to create a PA bearer corresponding to the APN for the MTC device, so that the MTC device can pass the The PA bearer transmits the PA information to the MTC server corresponding to the APN. Based on the mechanism, the mobility management network element can create a PA bearer for the MTC device in advance or according to the indication of the MTC device, thereby facilitating the flexible and efficient delivery of the PA information by the MTC device.

In order to facilitate a better understanding of the technical solution of the embodiment of the present invention, another embodiment of the method for transmitting priority alarm information in the embodiment of the present invention is mainly described by taking the specific implementation of the S AE communication system as an example.

In this embodiment, if an APN signed by the MTC device activates the PA feature, the network side pre-creates a bearer (referred to as a PA bearer) for transmitting the PA information corresponding to the APN for the MTC device, and the MTC device needs to transmit the PA information. It can be passed directly through the pre-created PA bearer.

The following is an example of the following specific scenarios.

Scenario 1: Creating a PA bearer based on the network attachment process of the MTC device

Referring to FIG. 3, specific steps may include:

301. The MTC device sends an attach request message to the MME.

302. The MME receives an attach request message, and obtains subscription data of the MTC device from the HSS.

303. The MME determines, according to the subscription data of the MTC device, whether the APN signed by the MTC device is Activated PA characteristics;

For example, MTC devices have signed up for APN1, APN2, and APN3, where APN1 and APN3 activate the PA feature.

If the AP is determined to be activated by the APN (for example, APN1 and APN3), the MME may notify the GW to create a PA bearer corresponding to the APN for the MTC device. If it is determined that the APN does not activate the PA feature, the GW may not notify the GW to create the MTC device. Corresponding to APN's PA |

304. The MME sends a setup session request message to the GW (SGW and the PGW), where the setup session request message can carry the APN, and the PA feature activation indication (the PA feature activation indication is used to indicate whether the APN activates the PA feature) to notify the GW. Whether a PA bearer corresponding to an APN (for example, APN1 and APN3) needs to be created for the MTC device.

It can be understood that, if the PA feature activation indication indicates that the APN activates the PA feature, the MME may be configured to notify the GW to create a PA bearer corresponding to the APN (eg, APN1 and APN3) for the MTC device, if the PA feature activation indication indicates If the APN does not activate the PA feature (or does not carry the PA feature activation indication in the setup session request message), it may indicate that the MME is not notified that the GW does not need to create a PA bearer corresponding to the APN (for example, APN1 and APN3) for the MTC device. In this embodiment, the PA feature is activated, and the MME is configured to notify the GW to create a PA bearer corresponding to the APN for the MTC device.

If the QoS of the PA bearer is configured on the MME or the subscription data from the HSS, the MME may further carry the QoS information carried by the PA in the setup session request message.

In practical applications, the QoS for establishing the PA^ can be from the subscription data on the HSS, or from the Policy and Charging Rules Function (PCRF) entity (if any), or in the MME. Or on the PGW. In addition, the MME, PGW, and PCRF can also modify the QoS.

305. The PGW creates a PA bearer for the MTC device.

If the PA feature is activated according to the PA feature activation indication, the manner in which the PGW creates the PA bearer for the MTC device may be one of the following:

A31. The PA bearer is transmitted by using the default bearer. In this case, the PGW can only establish the default bearer corresponding to APN1 and APN3, and the established default bearer is used as the PA bearer corresponding to APN 1 and APN3.

A32. Establish PA-specific 7-pass delivery PA information. At this time, the PGW can correspond to APN1 and APN3 respectively. Establish default bearers and PA bearers. The establishment of the default bearer is established by establishing a session request process, and the establishment of the PA dedicated bearer is activated by a dedicated bearer activation process accompanied by a default bearer activation.

A33. Create a PA7 payload without establishing a default 7-load. For example, APN1 is the default APN of the subscription, and the PGW can establish a default bearer and a PA bearer corresponding to APN1; corresponding APN3 only establishes a PA bearer without establishing a default bearer. Alternatively, the PGW establishes a PA bearer for APN1 and APN3, respectively, without establishing a default bearer.

In addition, if the PA characteristic activation indication indicates that the APN is not activated, the PGW can establish a default 7-load corresponding to the APN without establishing a PA7 corresponding to the APN.

306. The PGW sends a setup session response message to the MME.

The message exchanged between the PGW and the MME is forwarded by the SGW.

In an application scenario, the PGW may also obtain a corresponding PA bearer from the PCRF entity (if present).

QoS rules and other information; The PCRF entity or PGW can modify the QoS information of the PA bearer.

307. The MME and the eNB establish a corresponding S1 bearer, and the eNB and the MTC device establish a radio bearer.

308. The MME sends an attach accept message to the MTC device.

309. The MTC device sends an attach complete message to the MME.

310. When the PA information corresponding to the APN needs to be transmitted, the MTC device transmits the PA information to the MTC server corresponding to the APN through the PA bearer.

It can be seen that, in the scenario 1, the network side is configured to transmit a PA bearer corresponding to an APN in advance for the MTC device based on the attaching process of the MTC device, and the MTC device can directly pass the pre-created when the PA information needs to be transmitted. PA bearers are passed. Scenario 2: The APN (for example, APN2) that has been subscribed to the MTC device activates the PA feature, and the network side has previously established a scenario corresponding to the bearer of the APN2.

See Figure 4. The specific steps include:

401. The HSS sends the subscription data of the MTC device to the MME, where the APN2 that the MTC device has signed has activated the indication of the PA feature.

The HSS sends the subscription data to the MME to notify the MME that the APN2 that the MTC device has subscribed to activates the PA feature. The MME learns that the APN2 that the MTC device has subscribed to activates the PA feature.

402. If the MTC device is in the idle (RRC_IDLE) state, the MME may perform a service request procedure after paging to the MTC device, so that the MTC device transits to the connection (RRC_Connected) state. Of course, if the MTC device is already in the RRC_Connected state, step 402 may not be performed. 403. After receiving the subscription data from the HSS, the MME sends a modify bearer command to the GW. The MME may determine, according to the received subscription data from the HSS, that the APN2 that the MTC device has subscribed to activates the PA feature, and sends the PA feature to the GW. Modify the bearer command, and notify the GW to create a PA bearer corresponding to APN2 for the MTC device.

In an application scenario, the modify bearer command sent by the MME may carry the default bearer identifier of the corresponding APN2 (the default bearer identifier may correspond to the APN2 indication), and the PA feature activation indication (here, the PA feature activation indication indicates that the APN2 is activated. Based on parameters such as PA characteristics, the gateway device can learn to create a PA bearer corresponding to APN2 for the MTC device.

If the QoS of the PA bearer is configured on the MME or the subscription data from the HSS, the MME may further carry the QoS information of the PA bearer in the modify bearer command.

In practical applications, the QoS for establishing the PA^ can be from the subscription data on the HSS, or it can be configured on the MME or PGW, or from the PCRF. In addition, the MME, the PGW, and the PCRF can

QoS is modified.

404. The PGW initiates a bearer modification or bearer establishment process, and creates a corresponding APN2 for the MTC device.

PA bearer.

In the actual application, if a PA-specific bearer is to be added to the PA information corresponding to the APN2, the PGW initiates a bearer activation process, and creates a PA bearer corresponding to the APN2 for the MTC device. Alternatively, the PGW may also initiate a bearer modification process, and the modification may have been performed. Some correspond to the default bearer or other bearer of APN2, and use it as the PA bearer corresponding to APN2 created for the MTC device.

It can be understood that whether a new bearer corresponding to APN2 is used as the PA bearer of the APN2 corresponding to the MTC device, or the bearer corresponding to the existing APN2 is modified, as the PA bearer corresponding to the APN2 of the MTC device, can be regarded as the MTC. The device creates a PA bearer corresponding to APN2.

In an application scenario, the PGW may also obtain QoS rules and other information corresponding to the PA bearer from the PCRF entity (if any); the PCRF entity or the PGW may modify the QoS information of the PA bearer.

405. When the PA information corresponding to the APN2 needs to be transmitted, the MTC device transmits the PA information to the MTC server corresponding to the APN2 through the PA bearer corresponding to the APN2.

It can be seen that, in the scenario 2, the network side is configured to transmit a PA bearer corresponding to an APN in advance for the MTC device based on the bearer modification or bearer setup process, and the MTC device can transmit the PA information when the PA information needs to be transmitted. It can be passed directly through the pre-created PA bearer. Scenario 3: The MTC device newly subscribes to an APN with a PA feature (for example, APN4).

Referring to FIG. 5, the specific may include:

501. The HSS sends the subscription data of the MTC device to the MME, where the APN4 newly signed by the MTC device activates the indication of the PA feature.

The HSS sends the subscription data to the MME to notify the MME that the newly-registered APN4 of the MTC device activates the PA feature, and the MME learns that the newly-registered APN4 of the MTC device activates the PA feature.

If the APN4 activates the PA feature, the MME may notify the GW to create a PA bearer corresponding to the APN4 for the MTC device. If the PA feature is not activated by the APN4, the GW may not be notified to create a PA bearer corresponding to the APN4 for the MTC device.

502. If the MTC device is in the RRC_IDLE state, the MME may perform a service request procedure after paging to the MTC device, so that the MTC device is transferred to the RRC_Connected state.

Of course, if the MTC device is already in the RRC_Connected state, step 502 may not be performed.

503. After receiving the subscription data of the foregoing MTC device from the HSS, the MME sends a setup session request message to the GW (SGW and PGW).

The MME may determine that the newly-registered APN4 of the MTC device activates the PA feature according to the received subscription data from the HSS, and sends a setup session request message to the GW, informing the GW to create a PA bearer corresponding to the APN4 for the MTC device.

In an application scenario, the setup session request sent by the MME may carry the APN4 identifier, and the PA feature activation indication (where the PA feature activation indication indicates that the APN4 activates the PA feature), and the gateway device may learn whether the need is needed. Create a PA bearer corresponding to APN4 for the MTC device.

It can be understood that, if the PA feature activation indication indicates that the APN4 activates the PA feature, the MME may be configured to notify the GW to create a PA bearer corresponding to the APN4 for the MTC device, if the PA feature activation indication indicates that the APN4 does not activate the PA feature ( Or the establishment of the session request message does not carry the PA feature activation indication, and the MME is notified that the GW does not need to create a PA bearer corresponding to the APN4 for the MTC device. In this embodiment, the PA feature activation indication indicates that the APN4 activates the PA feature, and the MME is a scenario in which the GW is notified to create a PA bearer corresponding to the APN4 for the MTC device.

If the QoS of the PA bearer is configured on the MME or the subscription data from the HSS, the MME The QoS information carried by the PA may also be carried in the modify bearer command.

In practical applications, the QoS for establishing the PA^ can be from the subscription data on the HSS, or it can be configured on the MME or PGW, or from the PCRF. In addition, the MME, PGW, and PCRF can modify the QoS.

504. The PGW creates a PA bearer for the MTC device.

If the PA feature is activated according to the PA feature activation indication, the PGW creates a PA bearer for the newly signed APN4 of the MTC device, and may be one of the following:

A51. The PA bearer is transmitted by using the default bearer. In this case, the PGW can only establish the default bearer corresponding to the newly signed APN4, and the established default bearer is used as the PA bearer corresponding to the newly signed APN4.

A52. Establish a PA dedicated bearer to transmit PA information. At this time, the PGW can establish a default bearer and a PA bearer corresponding to the APN4. The establishment of the default bearer of the APN4 is performed by establishing a session request procedure, and the establishment of the PA dedicated bearer is implemented by a dedicated bearer activation process accompanied by a default bearer activation.

A53. Establish a PA bearer without establishing a default 7 load. At this point, the PGW can establish a PA bearer for APN4 without establishing a default 7-load.

505. The GW sends a setup session response to the MME.

506. The MME and the eNB establish a corresponding S1 bearer, and the eNB and the MTC device establish a radio bearer.

507. When the PA information corresponding to the APN4 needs to be transmitted, the MTC device transmits the PA information to the MTC server corresponding to the APN4 through the PA bearer.

In the scenario 3, the network side establishes a session process, and pre-creates a PA bearer for transmitting an APN for the MTC device. The MTC device can directly transmit the PA bearer through the pre-created PA bearer when the PA information needs to be transmitted.

It can be understood that, in this embodiment, the implementation of the SAE system is taken as an example. Of course, the replacement of the corresponding network element can also be applied to other communication systems, and the specific implementation manner is similar. Said.

As can be seen from the above, in this embodiment, the mobility management network element is aware of the APN activation of the MTC device subscription. The PA feature is configured to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, so that the MTC device can transmit the PA information to the MTC server corresponding to the APN through the PA bearer. Based on the mechanism, the mobility management network element can create a PA bearer in advance by the MTC device, thereby facilitating the flexible and efficient delivery of the PA information by the MTC device. Another embodiment of the method for transmitting priority alarm information in the embodiment of the present invention is still described by taking the specific implementation of the S AE communication system as an example.

In this embodiment, if the MTC device indicates that the PA information needs to be transmitted to the network, the network side establishes a corresponding PA bearer for the MTC device to transmit the PA information.

The following is an example of the following specific scenarios.

Scenario 4: When the MTC device is not attached to the network, PA information needs to be transmitted.

Referring to FIG. 6, the specific may include:

601. The MTC device sends an attach request message to the MME.

In an application scenario, the above-mentioned attach request sent by the MTC device may carry parameters such as an APN (for example, APN5) and a PA information delivery indication, and the PA information delivery indication may indicate to the network that the MTC device has PA information corresponding to the APN5 to be transmitted.

It can be understood that the MTC device can also send a PA information delivery indication corresponding to the APN5 to the eNB through an RRC message (such as an RRC connection request or an RRC connection completion message, etc.), and the eNB transmits the PA information delivery indication corresponding to the APN5 to the MME.

In practical applications, the PA information delivery indication may use the extension of the parameter indication in the existing message or the existing parameter bit, or add a new parameter as the PA information delivery indication, in order to indicate to the network that the MTC device has PA information to be transmitted.

602. The HSS sends the subscription data of the MTC device to the MME, where the APN5 that has been signed by the MTC device activates the indication of the PA feature.

603. The MME determines, according to the subscription data of the MTC device, whether the APN5 subscribed by the MTC device activates the PA feature.

If it is determined that the APN5 activates the PA feature, the MME may notify the GW to create a PA bearer corresponding to the APN5 for the MTC device. If it is determined that the APN5 does not activate the PA feature, the GW may not notify the GW to create a PA bearer corresponding to the APN5 for the MTC device. . 604. The MME sends a setup session request message to the GW, where the setup session request message may carry a PA feature activation indication (where the PA feature activation indication indicates that the APN5 activates the PA feature), and notify the GW to create a PA bearer corresponding to the APN5 for the MTC device. .

It can be understood that, if the PA feature activation indication indicates that the APN5 activates the PA feature, the MME may notify the GW to create a PA bearer corresponding to the APN5 for the MTC device, if the PA feature activation indication indicates that the APN5 does not activate the PA feature ( Or the establishment of the session request message does not carry the PA feature activation indication, and the MME may notify the GW that the PA bearer corresponding to the APN5 is not required to be created for the MTC device. In this embodiment, the PA feature activation indication indicates that the APN5 activates the PA feature, and the MME is a scenario in which the GW is notified to create a PA bearer corresponding to the APN5 for the MTC device.

605. The PGW creates a PA bearer for the MTC device.

A61. The PA bearer is transmitted by using the default bearer. In this case, the PGW can only establish the default bearer corresponding to the APN4, and the established bearer is used as the PA bearer corresponding to the APN5.

A62. Establish a PA-specific bearer to transmit PA information. At this time, the PGW can establish a default bearer and a PA bearer corresponding to the APN5. The establishment of the default bearer is performed by establishing a session request process, and the establishment of the PGW of the PA bearer may be implemented by a dedicated bearer activation process accompanied by a default bearer activation.

A63. Establish a PA bearer without establishing a default 7 load. At this point, the PGW can only establish a PA 7 payload for APN5 without establishing a default 7-load.

606. The GW sends a setup session response to the MME.

607. The MME and the eNB establish a corresponding S1 bearer, and the eNB and the MTC device establish a radio bearer.

608. The MME sends an attach accept message to the MTC device.

609. The MTC device sends an attach complete message to the MME.

610. The MTC device transmits the PA information to the MTC server corresponding to the APN5 through the PA bearer. In practical applications, after the PA information corresponding to APN5 is delivered, the pair may be released or retained. Should bear the PA of APN5.

It can be understood that the foregoing solution may also be used in a scenario where the service is restricted, such as roaming is not allowed, the location area is not allowed, or the access time is not allowed. After the PA information transmission is completed, the MTC device may initiate detachment or the network will actively The MTC device displays or implicitly detaches.

It can be seen that, in the scenario 4, when the network side knows that the MTC device has the PA information corresponding to the APN, the MTC device needs to transmit the PA bearer corresponding to the APN for the MTC device, and the MTC device passes the MTC device. The PA bearer is delivered. Scenario 5: When the MTC device has been attached to the network and transferred to the RRC_IDLE state, there is PA information to be transmitted, and the APN (for example, APN6) that needs to transmit PA information, the network already has a bearer.

In this scenario, you can choose the following two methods:

Method 1. Referring to Figure 7, the MTC device is implemented by modifying the service request process.

701. The MTC device sends a service request message to the MME.

In an application scenario, the service request message sent by the MTC device may carry the default bearer identification information of the APN6 or the APN6 (the default bearer identifier may correspond to the APN6), and the PA information delivery indication, and the PA information. The delivery indication may indicate to the network that there is PA information to be delivered in response to APN6.

It can be understood that the MTC device can also send a PA information delivery indication to the eNB through an RRC message (such as an RRC connection request or an RRC connection completion message, etc.), and the eNB transmits the PA information delivery indication to the MME.

702. The MME determines, according to the subscription data of the MTC device, whether the APN6 subscribed by the MTC device activates the PA feature.

The MME has previously obtained the subscription data of the MTC device. For example, the MME obtains the subscription data of the MTC device from the HSS during the MTC device network attachment process.

703. The MME sends a modify bearer request message to the GW, where the modify bearer request message is carried. The default bearer identification information of the APN6 and the PA feature activation indication (here, the PA feature activation indication indicates that the APN6 activates the PA feature), and the GW is notified to create a PA bearer corresponding to the APN6 for the MTC device. If the QoS is configured on the MME or the subscription data from the HSS, the MME may also carry the QoS information of the PA bearer in the modify bearer command.

704. The GW sends a modify bearer request response message to the MME.

705. The PGW initiates a bearer modification or a bearer establishment process, and creates a PA bearer corresponding to the APN6 for the MTC device.

In the actual application, if a PA-specific bearer is to be added to the PA information corresponding to the APN6, the PGW may initiate a 7-load activation process to create a PA bearer corresponding to the APN6 for the MTC device; or, the PGW may also initiate a bearer modification process. The default bearer or other bearer of the corresponding APN6 is modified as the PA bearer corresponding to the APN6 created for the MTC device.

It can be understood that whether a new bearer corresponding to the APN6 is used as the PA bearer of the APN6 corresponding to the MTC device, or the bearer corresponding to the existing APN6 is modified, as the PA bearer corresponding to the APN6 of the MTC device, can be regarded as the MTC. The device creates a PA bearer corresponding to APN6.

706. The MTC device transmits the PA bearer corresponding to the APN6 to the MTC server corresponding to the APN6.

PA information.

In practical applications, after the PA information corresponding to the APN6 is transmitted, the PA bearer corresponding to the APN6 can be released or retained. Method 2: Refer to Figure 8. The MTC device implements the modification by requesting bearer resources.

801. The MTC device goes to the RRC_Connected state.

If the MTC device is in the idle (RRC_IDLE) state, the MTC device can perform a service request process to go to the connection (RRC_Connected) state.

Of course, if the MTC device is already in the RRC_Connected state, step 801 may not be performed. 802. The MTC device sends a request for a resource modification message to the MME.

In an application scenario, the request bearer resource modification message sent by the MTC device may carry the default bearer identifier information of the APN6 or the APN6 (the default bearer identifier may correspond to the APN6), and the PA information delivery indication, and the like. The PA information delivery indication may indicate to the network that PA information corresponding to APN6 needs to be delivered.

803. The MME determines, according to the subscription data of the MTC device, whether the APN6 subscribed by the MTC device activates the PA feature.

If it is determined that the APN6 activates the PA feature, the MME may notify the GW to create a PA bearer corresponding to the APN6 for the MTC device. If it is determined that the PAN feature is not activated, the GW may not notify the GW to create a PA bearer corresponding to the APN6 for the MTC device. .

804. The MME sends a request bearer resource modification message to the GW, where the request bearer resource modification message may carry the default bearer identifier information of the APN6, and the PA feature activation indication (where the PA feature activation indication indicates that the APN6 activates the PA feature), The GW creates a PA bearer corresponding to the APN6 for the MTC device.

805. The PGW initiates a bearer modification or a bearer setup process, and creates a PA bearer corresponding to the APN6 for the MTC device. In the actual application, if a PA-specific bearer is to be added to the PA information corresponding to the APN6, the PGW may initiate a 7-load activation process to create a PA bearer corresponding to the APN6 for the MTC device; or, the PGW may also initiate a bearer modification process. The default bearer or other bearer of the corresponding APN6 is modified as the PA bearer corresponding to the APN6 created for the MTC device.

806. The MTC device transmits the PA information to the MTC server corresponding to the APN6 by using the PA bearer corresponding to the APN6.

In practical applications, when the PA information corresponding to APN6 is transmitted, the PA7 corresponding to APN6 can be released or retained.

It can be seen that, in the scenario 5, when the network side knows that the MTC device has a PA information corresponding to an APN, the MTC device creates a PA bearer corresponding to the APN for the MTC device based on the bearer modification or bearer setup procedure. Passed by the PA bearer. Scenario 6: The MTC device is attached to the network, corresponding to the APN (such as APN7) that needs to transmit PA information, and no bearer exists on the network side.

Referring to FIG. 9, the specific may include:

901. The MTC device goes to the RRC_Connected state.

Of course, if the MTC device is already in the RRC_Connected state, step 901 may not be performed.

902. The MTC device sends a PDN connection request message to the MME.

In an application scenario, the PDN connection request message sent by the MTC device may carry parameters such as APN7 and PA information delivery indication, and the PA information delivery indication may indicate to the network that the APN7 has PA information to be transmitted.

In practical applications, the PA information delivery indication can use the meaning of the parameter indication in the existing message. Or the existing parameter bits, or add a new parameter as a PA information delivery indication, the purpose is to indicate to the network that the MTC device has PA information to be transmitted.

903. The MME determines, according to the subscription data of the MTC device, whether the APN signed by the MTC device activates the PA feature.

The MME has previously obtained the subscription data of the MTC device, for example, the MME has previously

During the MTC device network attachment process, the contract data of the MTC device is obtained from the HSS.

If it is determined that the PA feature is activated by the APN7, the MME may notify the GW to create a PA bearer corresponding to the APN7 for the MTC device. If it is determined that the PAN feature is not activated, the GW may not notify the GW to create a PA bearer corresponding to the APN7 for the MTC device. .

904. The MME sends a setup session request message to the GW, where the setup session request message is carried.

APN7, and a PA feature activation indication indicating whether the PA feature is activated by the APN7, notifying the GW to create a PA bearer corresponding to the APN7 for the MTC device;

If the QoS of the PA bearer is configured on the MME or the subscription data from the HSS, the MME may also carry the QoS information of the PA bearer in the setup session request.

905. The PGW creates a PA bearer corresponding to the APN7 for the MTC device.

A91. The PA bearer is transmitted by the default bearer. At this time, the PGW can only establish the default bearer corresponding to the APN7, and the established default bearer is used as the PA bearer corresponding to the APN7.

A92. Establish a PA-specific bearer to transmit PA information. At this time, the PGW can establish a default bearer and a PA bearer corresponding to the APN7. The establishment of the default bearer is established by establishing a session request process, and the establishment of the PA dedicated bearer is activated by a dedicated bearer activation process.

A93. Establish a PA bearer without establishing a default 7 load. At this point, the PGW can establish a PA bearer for APN7 without establishing a default 7-load.

In addition, if the PA feature activation indication indicates that the APN is not activated, the PGW may establish a default 7-load corresponding to the APN, without establishing a PA7 bearer corresponding to the APN. 906. The PGW sends a setup session response message to the MME.

907. The MME and the eNB establish a corresponding S1 bearer, and the eNB and the MTC device establish a radio bearer. 908. The MME sends a PDN connection complete message to the MTC device.

909. The MTC device transmits the PA information to the MTC server corresponding to the APN7 through the PA bearer. In the sixth scenario, when the network side knows that the MTC device has a PA information corresponding to an APN, the PDN connection establishment process is used to create a PA bearer for the APN corresponding to the APN, and the MTC device transmits the PA bearer through the PA bearer. .

It can be seen that, in this embodiment, when the mobility management network element learns that the APN signed by the MTC device activates the PA feature, and the MTC device has the PA information corresponding to the APN, the gateway device is notified to create the corresponding APN for the MTC device. The PA bearer, the MTC device can then transmit the PA information to the MTC server corresponding to the APN through the PA | Based on the mechanism, the mobility management network element can create a PA bearer according to the indication of the MTC device, thereby facilitating the flexible and efficient delivery of the PA information by the MTC device.

It should be noted that, for each of the foregoing method embodiments, for the description of the package, it is expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details are not described in detail in an embodiment, and the related descriptions of other embodiments can be referred to. In order to facilitate the implementation of the above technical solutions of the embodiments of the present invention, the embodiments of the present invention further provide related devices that can be used to implement the foregoing technical solutions.

Referring to FIG. 10, a mobility management network element 1000 according to an embodiment of the present invention may include: an obtaining module 1010, configured to acquire subscription data of a machine type communication MTC device;

Determining the notification module 1020, if it is determined that the access point name APN of the MTC device subscription is activated according to the subscription data of the MTC device, the priority alarm PA feature is activated, and the gateway device is notified to be The MTC device creates a PA bearer corresponding to the APN, so that the MTC device transmits the PA information to the MTC server corresponding to the APN through the PA bearer.

In an application scenario, the mobility management network element 1000 may further include:

The receiving module 1030 is configured to receive the PA information delivery indication sent by the MTC device and the APN before the determining notification module notifies the gateway device to create a PA bearer corresponding to the APN for the MTC device.

In an application scenario, the receiving module 1030 may include one or more of the following receiving submodules: a first receiving submodule, configured to receive an attach request message from the MTC device, where the attach request message carries the APN and the PA information. Pass the instructions;

a second receiving submodule, configured to receive a service request message from the MTC device, where the service request message carries the APN and PA information delivery indication;

a third receiving submodule, configured to receive a bearer resource modification message from the MTC device, where the bearer resource modification message carries the foregoing APN and PA information delivery indication;

And a fourth receiving submodule, configured to receive a PDN connection request message from the MTC device, where the PDN connection request message carries the APN and PA information delivery indication.

In another application scenario, the receiving module 1030 may also include one or more of the following receiving submodules:

a fifth receiving submodule, configured to receive an attach request message carrying the APN from the MTC device, and receive, by the access network device, a radio resource that carries a PA information delivery indication corresponding to the APN from the MTC device After the RRC message is controlled, the PA information transmission instruction corresponding to the APN is sent;

a sixth receiving submodule, configured to receive a service request message carrying the APN from the MTC device, and receive an RRC message from the MTC device that carries a PA information delivery indication corresponding to the APN. After that, the PA information transmission instruction corresponding to the foregoing APN is sent;

a seventh receiving submodule, configured to receive a bearer resource modification message carrying the APN from the MTC device, and receive, by the receiving access network device, an RRC that carries a PA information delivery indication corresponding to the APN from the MTC device After the message, the PA information transmission instruction corresponding to the APN is sent; And an eighth receiving submodule, configured to receive a PDN connection request message carrying the APN from the MTC device, and receive, by the receiving access network device, an RRC that carries a PA information delivery instruction corresponding to the APN from the MTC device. After the message, the PA information delivery instruction corresponding to the APN is sent.

In an application scenario, the determining notification module may include one or more of the following sub-modules: a first notification sub-module, configured to determine, according to the subscription data of the MTC device acquired by the obtaining module 1010, that the APN signed by the MTC device is activated. The PA feature is configured to send a setup session request message to the gateway device, to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the setup session request message carries the APN and PA feature activation indication.

a second notification sub-module, configured to: when determining, according to the subscription data of the MTC device acquired by the acquiring module 1010, that the APN signed by the MTC device activates the PA feature, sending a modify bearer command to the gateway device, to notify the gateway device to create the MTC device Corresponding to the PA bearer of the APN, the modified bearer command carries the default bearer identifier information and the PA feature activation indication corresponding to the APN;

a third notification sub-module, configured to: when determining, according to the subscription data of the MTC device acquired by the acquiring module 1010, that the APN signed by the MTC device activates the PA feature, sending a modify bearer request message to the gateway device, to notify the gateway device that the MTC device is the MTC device Creating a PA bearer corresponding to the foregoing APN, where the modified bearer request carries the default bearer identifier information and the PA feature activation indication corresponding to the APN;

a fourth notification sub-module, configured to: when determining, according to the subscription data of the MTC device acquired by the acquiring module 1010, that the APN signed by the MTC device activates the PA feature, send a bearer resource modification message to the gateway device, to notify the gateway device that the MTC device is the MTC device The PA bearer corresponding to the APN is created, and the bearer resource modification message carries the default bearer identifier information and the PA feature activation indication corresponding to the APN.

It is to be understood that the functions of the respective functional modules of the mobility management network element 1000 may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again.

It can be seen that, in this embodiment, the mobility management network element 1000 notifies the gateway device to create a PA bearer corresponding to the APN for the MTC device, so that the MTC device can pass the APN. The PA bearer creates a PA bearer for the MTC server corresponding to the APN, thereby facilitating the flexible and efficient delivery of the PA information by the MTC device. The embodiment of the invention further provides a communication system, comprising: a mobility management network element 1000. Referring to FIG. 11, an embodiment of the present invention further provides a communication system, including: a mobility management network element 1110 and a gateway device 1120.

The mobility management network element 1110 is configured to acquire the subscription data of the MTC device, and create a PA bearer corresponding to the APN according to the foregoing device 1120.

The gateway device 1120 creates a PA bearer corresponding to the APN for the MTC device according to the notification of the mobility management network element 1110, so that the MTC device transmits the PA information to the MTC server corresponding to the APN through the PA bearer.

It is to be understood that the functions of the entities in the communication system of the present embodiment may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description of the foregoing method embodiments, and details are not described herein again.

In summary, in the embodiment of the present invention, the mobility management network element notifies the gateway device to create a PA bearer corresponding to the APN for the MTC device when the APN that the MTC device subscribes to activates the priority alarm PA feature, so that the MTC device can pass the The PA bearer transmits the PA information to the MTC server corresponding to the APN. Based on the mechanism, the mobility management network element can create a PA bearer for the MTC device in advance or according to the indication of the MTC device, thereby facilitating the flexible and efficient delivery of the PA information by the MTC device.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be completed by a program instructing related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Read-only memory, random access memory, disk or optical disk, etc.

The foregoing description of the method, device, and system for transmitting priority alarm information provided by the embodiments of the present invention are merely for facilitating understanding of the method and core idea of the present invention. Meanwhile, for those skilled in the art, The details of the present invention and the scope of the application are subject to change without departing from the scope of the invention.

Claims

Rights request

A method for transmitting priority alarm information, comprising:

The mobility management network element acquires the subscription data of the machine type communication MTC device; the APN activates the priority alarm PA feature, and then notifies the gateway device to create a PA bearer corresponding to the APN for the MTC device, so that the MTC device passes the The PA bearer transmits the PA information to the MTC server corresponding to the APN.

The method according to claim 1, wherein the notification gateway device creates a PA bearer corresponding to the APN for the MTC device, and further includes:

Receiving a PA information delivery indication and the APN sent by the MTC device.

The method according to claim 2, wherein the receiving the PA information delivery indication and the APN sent by the MTC device comprises:

Receiving an attach request message from the MTC device, where the attach request message carries the APN and PA information delivery indication; or

Receiving a service request message from the MTC device, where the service request message carries the APN and PA information delivery indication; or

Receiving a bearer resource modification message from the MTC device, where the bearer resource modification message carries the APN and PA information delivery indication; or

Receiving a packet data network PDN connection request message from the MTC device, wherein the PDN connection request message carries the APN and PA information delivery indication.

Receiving an attach request message carrying the APN from the MTC device, and receiving, by the receiving access network device, a radio resource control RRC message carrying a PA information delivery indication corresponding to the APN from the MTC device Sending a PA information delivery indication corresponding to the APN; or

Receiving a service request message carrying the APN from the MTC device, and receiving, by the receiving access network device, an RRC message carrying a PA information delivery indication corresponding to the APN from the MTC device, Corresponding to the PA information delivery indication of the APN; or,

Receiving, by the MTC device, a bearer resource modification message carrying the APN, and receiving, by the receiving access network device, an RRC message carrying the PA information delivery indication corresponding to the APN from the MTC device, sending Corresponding to the PA information delivery indication of the APN;

Or,

Receiving a PDN connection request message carrying the APN from the MTC device, and receiving, by the receiving access network device, after receiving an RRC message from the MTC device that carries a PA information delivery indication corresponding to the APN, sending Corresponding to the PA information delivery indication of the APN.

The method according to claim 1, wherein the notifying the gateway device to create a PA bearer corresponding to the APN for the MTC device includes:

Sending a setup session request message to the gateway device, to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the setup session request message carries the APN and PA feature activation indication; or

Sending a modify bearer command to the gateway device to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the modify bearer command carries the default bearer identifier information and the PA feature activation indication corresponding to the APN; Or,

Sending a modify bearer request message to the gateway device, to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the modify bearer request carries the default bearer identifier information and the PA feature activation indication corresponding to the APN Or,

Sending a bearer resource modification message to the gateway device, to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the bearer resource modification message carries the default bearer identifier information and the PA feature corresponding to the APN. Instructions.

6. A mobility management network element, comprising:

7. The mobility management network element of claim 6 wherein: The mobility management network element further includes:

And a receiving module, configured to receive, after the determining notification module, the gateway device to create a PA bearer corresponding to the APN for the MTC device, to receive the PA information delivery indication and the APN sent by the MTC device.

8. The mobility management network element of claim 7 wherein:

The receiving module includes one or more of the following receiving submodules:

a first receiving submodule, configured to receive an attach request message from the MTC device, where the attach request message carries the APN and PA information delivery indication;

a third receiving submodule, configured to receive a bearer resource modification message from the MTC device, where the bearer resource modification message carries the APN and PA information delivery indication;

9. The mobility management network element of claim 6 wherein:

The notification module includes one or more of the following sub-modules:

a first notification sub-module, configured to: when determining, according to the subscription data of the MTC device acquired by the acquiring module, that the APN signed by the MTC device activates the PA feature, send a setup session request message to the gateway device, to notify the gateway device The MTC device creates a PA bearer corresponding to the APN, and the setup session request message carries the APN and PA feature activation indication.

a second notification sub-module, configured to: when determining, according to the subscription data of the MTC device acquired by the acquiring module, that the APN signed by the MTC device activates the PA feature, send a modify bearer command to the gateway device, to notify the gateway device that The MTC device creates a PA bearer corresponding to the APN, and the modified bearer command carries the default bearer identifier information and the PA feature activation indication corresponding to the APN;

a third notification sub-module, configured to: when determining, according to the subscription data of the MTC device acquired by the acquiring module, that the APN signed by the MTC device activates the PA feature, sending a modify bearer request message to the gateway device, to notify the gateway device The MTC device creates a PA bearer corresponding to the APN, and the modified bearer request carries a default bearer identifier information and a PA feature activation indication corresponding to the APN; and a fourth notification submodule, configured to be acquired according to the acquiring module. MTC device subscription data Determining that the APN that is subscribed by the MTC device activates the PA feature, and sends a bearer resource modification message to the gateway device to notify the gateway device to create a PA bearer corresponding to the APN for the MTC device, where the bearer resource modification message carries the The default bearer identification information and the PA feature activation indication corresponding to the APN.

10. A communication system, comprising: