WO2011160287A1

WO2011160287A1 - Methods and devices for controlling congestion

Info

Publication number: WO2011160287A1
Application number: PCT/CN2010/074226
Authority: WO
Inventors: 于益俊
Original assignee: 华为技术有限公司
Priority date: 2010-06-22
Filing date: 2010-06-22
Publication date: 2011-12-29
Also published as: CN102511182A

Abstract

Methods and devices for controlling congestion are disclosed by the embodiments of the present invention. The method for controlling congestion includes the following steps: a mobility management element obtains a request message sent by a user device, wherein the mobility management element or other network devices are in the congestion status; the mobility management element sends waiting-for-paging indication information to the user device. By the embodiments of the present invention, when the mobility management element or other network devices are in the congestion status, the mobility management element can indicate the user device to stop sending signaling messages to the network and wait for paging from the network, thereby reducing the number of signaling on the network before an effective solution to the congestion situation, and then avoiding network device faults due to signaling impact and guaranteeing normal operations of communication services.

Description

Congestion control method and device

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a congestion control method and apparatus. Background technique

Machine To Machine (M2M) communication (referred to as machine communication) can also be called machine type communication (MTC). A typical feature is that the number of terminals is huge. The terminal is also generally called a user. The device (User Equipment, UE for short) or the device type communication device (MTC Device) is collectively referred to as a user equipment in the embodiment of the present invention. Machine communication is often strongly related to the service. This can cause a large number of user equipments to perform a certain service at the same time (for example, meter data reporting). When a large number of the above-mentioned user equipments access the network at the same time in a short time, the network equipment may Congestion is thus caused, and congestion control is required, for example: request message rejecting or directly discarding the user equipment.

The user equipment may frequently re-initiate the service request to the network before the congestion condition of the network device has been effectively solved, thereby increasing the signaling of the network. Due to a large number of signaling attacks, the network device may be faulty, affecting the communication. The business is going on normally. Summary of the invention

Embodiments of the present invention provide a method and a device for controlling congestion, which are used to reduce network signaling before network device congestion is effectively solved, to avoid network device failure caused by signaling impact, and to ensure normal communication service. After the congestion condition of the network device is resolved, the user equipment is effectively controlled to initiate the request again, thereby improving the initiative and timeliness of the network processing congestion.

An embodiment of the present invention provides a congestion control method, including:

The mobility management network element acquires a request message sent by the user equipment, where the mobility management network element or other network device is in a congested state; The mobility management network element sends a waiting paging indication information to the user equipment.

An embodiment of the present invention provides another congestion control method, including:

The mobility management network element learns that itself or other network devices are congested and restored;

The mobility management network element sends a paging message to the user equipment, so that the user equipment performs a corresponding process according to the pre-fetched paging instruction information.

An embodiment of the present invention provides another method for controlling congestion, including:

The mobility management network element sends a paging message to the user equipment, where the paging message includes an operation indication, so that the user equipment performs a process corresponding to the operation indication.

The embodiment of the present invention further provides a mobility management network element, where the mobility management network element or other network device is in a congested state, including:

An obtaining module, configured to obtain a request message sent by the user equipment;

And an indication module, configured to send the waiting paging indication information to the user equipment.

An embodiment of the present invention further provides another mobility management network element, including:

The learning module is configured to learn congestion recovery of itself or other network devices;

The paging module is configured to send a paging message to the user equipment, where the user equipment performs a corresponding process according to the pre-acquired paging instruction information.

The embodiment of the invention further provides another mobile management network element, including:

The paging module is configured to send a paging message to the user equipment, where the paging message includes an operation indication, where the user equipment performs a flow corresponding to the operation indication.

According to the foregoing technical solution, when the mobility management network element or other network device is in a congested state, the mobile management network element obtains the request message sent by the user equipment, and may send the waiting paging indication information to the user equipment. And indicating that the user equipment stops sending signaling messages to the network, and waits for paging of the network, so that network signaling can be reduced before the congestion status of the mobility management network element or other network device is effectively solved, thereby avoiding Signaling The failure of the network device caused by the spoofing ensures the normal operation of the communication service. The mobile management network element learns that the self-service or other network device is congested and restored, and may send a paging message to the user equipment to indicate that the user equipment waits for paging according to the pre-acquisition. Instructing the information, performing the corresponding process, or performing the corresponding process of the operation indication included in the paging message, so that after the congestion status of the mobility management network element or other network device is effectively resolved, the user equipment can be effectively controlled to initiate the request again. Improve the initiative and timeliness of network processing congestion. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set forth in the description of the claims Other drawings may also be obtained from these drawings without the use of creative labor.

1 is a schematic flowchart of a method for controlling congestion according to a first embodiment of the present invention; FIG. 2 is a schematic flowchart of another method for controlling congestion according to a second embodiment of the present invention; FIG. 4 is a schematic flowchart of a method for processing congestion control according to Embodiment 4 of the present invention; FIG. 5 is a schematic flowchart of a method for processing congestion control according to Embodiment 5 of the present invention; FIG. 6 is a schematic flowchart of a method for processing congestion control according to Embodiment 6 of the present invention; FIG. 7 is a schematic structural diagram of a mobility management network element according to Embodiment 7 of the present invention; A schematic diagram of a structure of a mobility management network element; FIG. 9 is a schematic structural diagram of still another mobility management network element according to Embodiment 9 of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art are not doing All other embodiments obtained under the premise of creative labor are within the scope of the invention. FIG. 1 is a schematic flowchart of a congestion control method according to Embodiment 1 of the present invention. As shown in FIG. 1, the congestion control method in this embodiment may include the following steps:

Step 101: The mobility management network element acquires a request message sent by the user equipment, where the mobility management network element or other network device is in a congested state;

The request message may be an attach request (Attach Request) message, a Routing Area Update Request message, a Tracking Area Update Request message, a Service Request message, or an extension. Messages such as the Extended Service Request message.

Step 102: The mobility management network element sends the waiting paging indication information to the user equipment, to indicate that the user equipment waits for paging of the network.

In this embodiment, after receiving the paging of the network, the user equipment may re-execute the attach procedure or the service request process/extended service request flow executed when the waiting paging instruction information is acquired according to the waiting for paging indication information.

Optionally, the waiting paging indication information in this embodiment may further include an operation indication, such as: an attachment indication, a location update indication (a routing area update indication/tracking area update indication), a service request indication/extended service request. After the operation instruction indicates that the user equipment receives the paging of the network, the user equipment may perform a corresponding attachment process, a routing area update process/tracking area update process, a service request process, an extended service request process, and the like according to the operation instruction.

In this embodiment, when the mobility management network element or other network device is in a congested state, the mobility management network element obtains a request message sent by the user equipment, and may send a waiting paging indication information to the user equipment to indicate the user equipment. Stop sending signaling messages to the network and wait for paging of the network, so that the signaling of the network can be reduced before the congestion status of the mobility management network element or other network devices is effectively solved, thereby avoiding the network caused by the signaling impact. The equipment is faulty, ensuring the normal operation of the communication service.

2 is a schematic flowchart of another congestion control method according to Embodiment 2 of the present invention, as shown in FIG. As shown in FIG. 2, the congestion control method of this embodiment may include the following steps:

Step 201: The mobility management network element learns that the self or other network device is congested and restored.

Step 202: The mobility management network element sends a paging message to the user equipment, where the user equipment performs a corresponding process according to the pre-acquired paging instruction information.

In this embodiment, after receiving the paging message sent by the mobility management network element, the user equipment may re-execute the attach procedure or the service request process executed when the waiting for paging indication information is obtained according to the pre-acquired paging instruction information. Extended service request process.

Optionally, the foregoing waiting paging indication information may further include an operation indication, such as: an indication of an attachment, a location update indication (a routing area update indication/tracking area update indication), a service request indication/extended service request indication, and the like. The user equipment may perform processes such as a corresponding attach process, a routing area update process/tracking area update process, a service request process/extended service request process, and the like according to the foregoing operation instructions.

In this embodiment, the mobile management network element may send a paging message to the user equipment by using the user equipment or the other network device to recover the congestion, and the user equipment is instructed to perform the corresponding process according to the pre-acquired paging instruction information. After the congestion status of the mobility management network element or other network device is effectively solved, the user equipment can be effectively controlled to initiate the request again, which improves the initiative and timeliness of the network processing congestion.

FIG. 3 is a schematic flowchart of still another congestion control method according to Embodiment 3 of the present invention. As shown in FIG. 3, the congestion control method in this embodiment may include the following steps:

Step 301: The mobile management network element learns that the self or other network device is congested and restored.

Step 302: The mobility management network element sends a paging message to the user equipment, where the paging message includes an operation indication, where the user equipment performs the process corresponding to the operation indication.

In this embodiment, the operation indication may be an operation indication such as an attachment indication, a location update indication (a routing area update indication/tracking area update indication), a service request indication/extended service request indication, and the like, and the user equipment may perform according to the operation instruction. Corresponding attachment process, routing area update process/tracking area update process, service request process/extended service request process, etc. In this embodiment, the mobile management network element sends a paging message including an operation indication to the user equipment by using the user equipment or the other network device to recover the congestion, and is used to indicate that the user equipment performs the operation corresponding to the operation indication included in the paging message. After the congestion status of the mobility management network element or other network device is effectively solved, the user equipment can be effectively controlled to initiate the request again, which improves the initiative and timeliness of the network processing congestion.

The congestion control method of the embodiment of the present invention can be applied to multiple radio access networks, for example: Evolved Universal Mobile Telecommunication System Territorial Radio Access Network (E-UTRAN), UMTS terrestrial UMTS Territorial Radio Access Network (UTRAN), Global System for Mobile Communications (GSM) / Enhanced Data Rate for GSM Evolution (EDGE) wireless connection Network such as GSM EDGE Radio Access Network (GERAN).

The mobility management network element may be a Mobility Management Entity (MME) in the E-UTRAN, or may be a General Packet Radio Service (GPRS) support in the UTRAN/GERAN. Serving GPRS Supporting Node (SGSN).

4 is a schematic flowchart of a method for processing congestion control according to Embodiment 4 of the present invention. As shown in FIG. 4, the method for processing congestion control in this embodiment may include the following steps:

Step 401: The UE sends an attach request (Attach Request) message to the mobility management network element, where the mobility management network element or other network device is in a congested state;

In this embodiment, the mobility management network element can learn that it is in a congested state, or learn other related network devices, for example, a Home Location Register (HLR)/Home Subscriber Server (HSS), Gateway GPRS Supporting Node (GGSN), Serving Gateway (SGW), Packet Data Network Gateway (Packet Data) Network devices such as Network Gateway (PGW) are in a congested state.

Step 402: The mobility management network element sends a security mode command (Security Mode Command) message to the UE, and sets the integrated protection algorithm and the encryption algorithm to be empty.

In this step, the value of the integrated protection algorithm is 曰AO, which means the null integrity protection algorithm; the value of the force-to-mouth algorithm is EEAO, which means the null force-density algorithm ( null Ciphering algorithm ).

Step 403: The UE sends a Security Mode Complete message to the mobility management network element.

The above steps 402 and 403 are optional steps.

Step 404: The mobility management network element sends an attach accept message to the UE, where the attach accept message includes a location area identifier, a temporary identifier allocated to the UE, and a waiting paging indication information.

In this step, after receiving the attach request message sent by the UE, the mobility management network element establishes a context for the UE, and records that the UE is in a state of waiting for paging. The context of the UE may be identified by the UE's International Mobile Subscriber Identity (IMSI). If the UE's IMSI cannot be obtained, the mobility management NE may also be assigned a unique internal index for identification. The mobility management network element may record, in the context of the foregoing UE, the location information of the UE reported by the base station device in step 401 and the temporary identifier allocated to the UE after the mobility management network element receives the attach request message in step 401. Specifically, the mobility management network element may allocate the same temporary identifier to multiple UEs, for example: the mobility management network element may allocate the same temporary identifier to all UEs in the same location area; or the mobility management network element may also be in the same location. A certain number of UEs (for example: 500 UEs) are allocated the same temporary identity.

In UTRAN/GERAN, the SGSN may record the routing area identifier of the Base Station Controller (BSC)/Radio Network Controller (RNC) in step 401 in the context of the UE. Area Identity (RAI) and the SGSN group temporary mobile subscriber identity assigned to the UE (Packet Temporary Mobile Subscriber Identity, referred to as P-TMSI).

In the E-UTRAN, the MME may record, in the context of the UE, the Tracking Area Identity (TAI) reported by the Evolved NodeB (eNodeB) in step 401 and the globally unique temporary allocation of the MME to the UE. Globally Unique Temporary UE Identity (GUTI). In addition to allocating the same temporary identifier (GUTI) to multiple UEs, the MME may also allocate the same TAI List (TAI List) for all UEs with the same temporary identifier.

Step 405: The UE records the location area identifier included in the attach accept message, the temporary identifier allocated to the UE, and the waiting paging indication information, and stops sending signaling messages to the network according to the waiting paging indication information.

Optionally, if the foregoing step 402 and step 403 are performed, in this step, the UE may construct a local security key (K _ASME ) according to the waiting paging indication information, so that the subsequent process performs signaling encryption.

Step 406: The mobility management network element learns that the self or other network device is congested and restored.

Step 407: The mobile management network element sends a paging (Paging) message to the base station device, where the paging message includes a location area identifier (RAI or TAI list), a temporary identifier of the UE, and an attach indication. In the above step 404, the mobility management network element allocates a temporary identifier to the UE, for example: P-TMSI or System Architecture Evolution (SAE) SAE Temporary Mobile Subscriber Identity (S-TMSI), S- The TMSI is part of the GUTI and is used as a paging identifier. In the present invention, the foregoing temporary identifier can be shared by multiple UEs in the same location area.

The foregoing attachment indication may be a new cell in the paging message, or may be a new cause value. The embodiment of the present invention does not limit its specific form.

Step 408: The base station device broadcasts a paging message in the location area corresponding to the location area identifier, where the paging message includes a temporary identifier and an attachment indication of the UE.

Step 409: The UE performs an attach procedure according to the foregoing attach indication. The above attachment process in this step is a standard process and will not be described here.

In this embodiment, since multiple UEs have the same temporary identifier, multiple UEs in the foregoing location area perform the above step 409.

Optionally, the paging message in the foregoing step 407 and the step 408 may not include an attach indication, and correspondingly, after receiving the paging message, the UE in step 409 may perform the waiting according to the foregoing step 405. Call the indication information and execute the attachment process.

Optionally, in the foregoing step 404, the waiting paging indication information provided by the mobility management network element to the UE may further include an attach indication. If the paging indication information is included in the waiting indication, the UE also needs to record the above attachment indication in step 405. In this case, the paging message in the foregoing step 407 and the step 408 may not include the indication of the attachment. Accordingly, after receiving the paging message, the UE in the step 409 may perform the waiting according to the foregoing step 405. The attachment indication included in the indication information is executed, and the attachment process is executed.

In this embodiment, when the mobility management network element or other network device is in a congested state, the mobility management network element performs only a minimum of signaling interaction after receiving the attach request sent by the user equipment, and does not interact with other network devices, for example, : Do not interact with the HLR/HSS to obtain user subscription data, etc., and directly accept the attachment request of the user equipment. The foregoing method reduces signaling interaction between the user equipment and the network, and avoids signaling interaction between different network devices in the network, thereby reducing signaling impact on the mobility management network element and avoiding other network devices in the network. Signaling impact. In addition, the mobile management network element notifies the user equipment to initiate the attach request, thereby avoiding the new system congestion caused by the user equipment continually retrying, and ensuring the normal operation of the communication service.

In addition, when the mobile management network element learns that the self-service or other network device is congested and restored, the user equipment is configured to send a paging message to the user equipment to indicate that the user equipment performs the attach procedure according to the pre-acquired paging information, or instruct the user equipment to The pre-acquisition-waiting paging indication information, the attaching process corresponding to the attaching indication included in the waiting paging indication information, or the user equipment performing the attaching process corresponding to the attaching indication included in the paging message, so that the mobile management network is After the congestion of the yuan or other network equipment is effectively solved, the user equipment can be effectively controlled. The initiation of the attach request increases the initiative and timeliness of the network processing congestion.

FIG. 5 is a schematic flowchart of a method for processing congestion control according to Embodiment 5 of the present invention. As shown in FIG. 5, the method for processing congestion control in this embodiment may include the following steps:

Step 501: The UE sends a Routing Area Update Request message (Tracking Area Update Request) message to the mobility management network element, where the mobility management network element or other network device is in a congested state;

In this embodiment, the mobility management network element can know in advance that it is in a congested state, or learn other related network devices, for example, a Home Location Register (HLR)/Home Subscriber Server (HSS). The network devices such as the Gateway GPRS Supporting Node (GGSN), the Serving Gateway (SGW), and the Packet Data Network Gateway (PGW) are in a congested state.

If there is no context of the UE on the mobility management network element, for example: the UE attached to the old mobility management network element replaces the new mobility management network element, and the UE performs routing area update/tracking area update to the new mobility management network element. Or the UE performs the inter-system change to switch from the GERAN/UTRAN to the E-UTRAN or vice versa, and the mobility management network element and the UE can further perform the security mode process. For details, refer to the fourth embodiment of the present invention. The relevant contents of step 402 and step 403 are not described here.

Step 502: The mobility management network element sends a Routing Area Update Accept message (Tracking Area Update Accept) message to the UE, where the routing area update accept message/tracking area update accept message includes a location area. Identification, temporary identification assigned to the UE, and waiting for paging indication information;

If the context of the UE is present on the mobility management network element, the mobility management network element may reuse the existing context of the UE without establishing a context of the new UE, and record that the UE is in a state of waiting for paging. The mobility management network element may record, in the context of the foregoing UE, location information of the UE reported by the base station device in step 501, and the mobile management network element receives the routing area update request in step 501. The temporary identity assigned to the UE after the message/tracking area update request message. For example, the mobile management network element may allocate the same temporary identifier to multiple UEs. For details, refer to the related content in the foregoing fourth embodiment of the present invention, and details are not described herein again.

If there is no context of the UE on the mobility management network element, the mobility management network element may establish a context of the new UE, and record that the UE is in a state of waiting for paging. The context of the UE may be identified by the UE's International Mobile Subscriber Identity (IMSI). If the UE's IMSI cannot be obtained, the mobility management network element may also be assigned a unique internal index for identification. The mobility management network element may record, in the context of the foregoing UE, the location information of the UE reported by the base station device in step 501 and the location information allocated by the mobility management network element to the UE after receiving the routing area update request message/tracking area update request message in step 501. Temporary identification. Specifically, the mobility management network element may allocate the same temporary identifier to multiple U Es. For the detailed content, refer to the related content in the foregoing fourth embodiment of the present invention, and details are not described herein again.

Step 503: The UE records the location area identifier included in the routing area update accept message/tracking area update accept message, the temporary identifier allocated to the UE, and the waiting paging indication information, and stops sending to the network according to the waiting paging indication information. Signaling message

Optionally, if the mobility management network element and the UE perform the security mode process, the UE may construct a local security key (K _ASME ) for use in subsequent process encryption signaling according to the foregoing paging indication information. .

Step 504: The mobility management network element learns that the self or other network device is congested and restored.

Step 505: The mobility management network element sends a paging (Paging) message to the base station device, where the paging message includes a location area identifier (RAI or TAI list), a temporary identifier of the UE, and a location update indication or an attachment indication.

The temporary identifier of the UE is the temporary identifier allocated by the mobility management network element to the UE in the foregoing step 502, for example: P-TMSI or SAE Temporary Mobile Subscriber Identity (S-TMSI), S-TMSI is A part of GUTI is used as a paging identifier, and the temporary identifier can be shared by multiple UEs in the same location area. If the mobility management network element has the context of the UE before the step 501, the paging message includes a location update indication; if the mobility management network element does not have the context of the UE before step 501, the paging message includes an attachment indication. .

The location update indication/attachment indication may be a new cell in the paging message, or may only have a new cause value. The specific embodiment of the present invention does not limit the specific form.

Step 506: The base station device broadcasts a paging message in the location area corresponding to the location area identifier, where the paging message includes a temporary identifier of the UE and a location update indication or an attachment indication.

Step 507: The UE performs a routing area update process/tracking area update process or an attach process according to the location update indication or the attach indication.

The above-mentioned routing area update process/tracking area update process or attachment process is a standard process in this step, and is not described here.

In this embodiment, since multiple UEs have the same temporary identifier, multiple UEs in the location area perform the above step 507.

Optionally, in the foregoing step 502, the waiting paging indication information provided by the mobility management network element to the UE may further include a location update indication or an attach indication. For the specific method of providing the location update indication or the attachment indication, refer to the related content in the foregoing step 505, and details are not described herein again. If the location indication indication or the attachment indication is included in the paging indication information, the UE further needs to record the location update indication or the attachment indication in step 503. In this case, the paging message in the foregoing step 505 and the step 506 may not include the location update indication or the attachment indication. Accordingly, after receiving the paging message, the UE in step 507 may perform the foregoing step 503. The location update indication or the attachment indication included in the recorded waiting paging indication information is executed, and the routing area update process/tracking area update process or the attaching process is performed.

In this embodiment, when the mobility management network element or other network device is in a congested state, the mobility management network element performs only the minimum signaling interaction after receiving the routing area update/tracking area update request sent by the user equipment, and does not Other network devices interact, for example: Do not interact with the HLR/HSS to obtain user subscription data, etc., and directly accept the routing area update/tracking area update request of the user equipment. The above method is reduced The signaling interaction between the user equipment and the network is reduced, and the signaling interaction between different network devices in the network is avoided, thereby reducing the signaling impact on the mobility management network element and avoiding the letters to other network devices in the network. In addition, the mobile management network element notifies the user equipment device to initiate the routing area update request/tracking area update request, thereby avoiding new system congestion caused by the user equipment retrying, and ensuring the normal operation of the communication service.

In addition, when the mobile management network element learns that the self-service or other network device is in congestion recovery, the paging message is sent to the user equipment to indicate that the user equipment according to the location update indication or the attachment indication included in the pre-acquired paging instruction information. Performing a location update to indicate a corresponding routing area update process/tracking area update process or an attaching process corresponding to the attaching indication, or instructing the user equipment to perform a routing area update process/tracking area update process corresponding to the location update indication included in the paging message or The attaching instruction corresponds to the attaching process, so that after the congestion status of the mobility management network element or other network device is effectively solved, the user equipment can be effectively controlled to initiate the routing area update request/tracking area update request or the attach request again, thereby improving network processing congestion. Initiative and timeliness.

FIG. 6 is a schematic flowchart of a method for processing congestion control according to Embodiment 6 of the present invention. As shown in FIG. 6, the method for processing congestion control in this embodiment may include the following steps:

Step 601: The UE sends a Service Request message/Extended Service Request message to the mobility management network element, where the mobility management network element or other network device is in a congested state;

The embodiment of the present invention performs a service request (Service Request) or an extended service request (Extended Service Request) process for the UE, so the UE performs the above process. Before 601, the mobile management network element of the current service is normally attached, and the context of the correct legal UE (including the location area identifier and the temporary identifier allocated for the UE) on the mobility management network element is not required to establish a new UE. Context, recording the UE is in a state of waiting for paging.

Step 602: The mobility management network element sends a service rejection (Service Reject) message to the UE, where the service rejection message includes waiting for paging indication information;

Step 603: The UE records the waiting paging indication information included in the service rejection message, and stops sending signaling messages to the network according to the waiting paging indication information.

Step 604: The mobility management network element learns that the self or other network device is congested and restored.

Step 605: The mobility management network element sends a paging (Paging) message to the base station device, where the paging message includes a location area identifier (RAI or TAI list), a temporary identifier of the UE, and a service request indication or an extended service request indication.

The temporary identifier of the UE is the temporary identifier allocated to the UE before the step 601 stored in the mobile management network element in the foregoing step 602, for example: P-TMSI or SAE Temporary Mobile Subscriber Identity (S-TMSI) S-TMSI is part of GUTI and is used as a paging identifier.

The service request indication/extended service request indication may be a new cell in the paging message, or may only have a new cause value. The specific form of the embodiment of the present invention is not limited.

Step 606: The base station device broadcasts a paging message in the location area corresponding to the location area identifier, where the paging message includes a temporary identifier of the UE and a service request indication or an extended service request indication. Step 607: The UE according to the service request indication or An extended service request indication, execution of a service request process or an extended service request process.

The above-mentioned service request process or extended service request process in this step is a standard process, and will not be described here.

Optionally, the paging message in the foregoing step 605 and the step 606 may not include the service request indication or the extended service request indication, and correspondingly, after receiving the paging message, the UE in step 607 may Waiting for paging indication information recorded in step 603, performing service Request process or extended service request process.

Optionally, in the foregoing step 602, the waiting paging indication information provided by the mobility management network element to the UE may further include a service request indication or an extended service request indication. If the waiting for paging indication information includes a service request indication or an extended service request indication, the UE further needs to record the above service request indication or the extended service request indication in step 603. At this time, the paging message in the foregoing step 605 and the step 606 may not include the service request indication or the extended service request indication. Accordingly, after receiving the paging message, the UE in step 607 may The service request or the extended service request indication included in the waiting paging indication information recorded in step 603 executes the service request flow or the extended service request flow.

In this embodiment, when the mobility management network element or other network device is in a congested state, the mobile management network element directly rejects the request of the user equipment after receiving the service request or the extended service request sent by the user equipment, and indicates the user equipment. Do not initiate a follow-up process. The foregoing method reduces the signaling interaction between the user equipment and the network, and particularly avoids the signaling process such as the activation bearer that may be initiated by the user equipment, thereby reducing the signaling impact on the mobility management network element and ensuring the communication service. The normal progress.

In addition, when the mobile management network element learns that the self-service or other network device is congested and restored, the user equipment is configured to send a paging message to the user equipment to perform the service request process or the extended service request according to the pre-acquired paging instruction information. The process, or instructing the user equipment to perform the service request indication or the extended service request indication corresponding to the service request indication or the extended service request indication included in the waiting paging indication information according to the pre-acquired paging indication information, or indicate the user The device performs the service request indication or the extended service request included in the paging message to indicate the corresponding service request process or the extended service request process, so that after the congestion status of the mobility management network element or other network device is effectively solved, the device can effectively Controlling the user equipment to initiate a service request or an extended service request to complete the subsequent service again improves the initiative and timeliness of the network processing congestion.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, It is described as a series of combinations of actions, but those skilled in the art will appreciate that the present invention is not limited by the described order of the acts, as some 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 parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

FIG. 7 is a schematic structural diagram of a mobility management network element according to Embodiment 7 of the present invention. The mobility management network element or other network device is in a congested state. As shown in FIG. 7, the mobility management network element in this embodiment may include The module 71 and the indication module 72 are obtained. The obtaining module 71 obtains the request message sent by the user equipment, and the instructing module 72 sends the waiting page indication information to the user equipment to indicate that the user equipment waits for the paging of the network.

The functions of the mobility management network element, the mobility management network element in the fourth embodiment of the present invention, the mobility management network element in the fifth embodiment of the present invention, and the mobility management network element in the sixth embodiment of the present invention are all applicable to the mobile provided by the embodiment. Management network element implementation.

In this embodiment, when the mobility management network element or other network device is in a congested state, the acquiring module obtains the request message sent by the user equipment, and the indication module may send the waiting paging indication information to the user equipment to indicate the user. The device stops sending signaling messages to the network and waits for paging of the network, so that the signaling of the network can be reduced before the congestion status of the mobility management network element or other network devices is effectively solved, thereby avoiding the signaling impact. The network equipment is faulty, which ensures the normal operation of the communication service.

Further, the obtaining module 71 may be specifically configured to obtain an attach request message sent by the user equipment; the indicating module 72 may be specifically configured to send an attach accept message to the user equipment, where the attach accept message includes a waiting paging indication information; or

The obtaining module 71 is specifically configured to obtain a routing area update request message/tracking area update request message sent by the user equipment; the indicating module 72 may be specifically configured to send a routing area update accept message/tracking area update accept message to the user equipment, where the route is Zone Update Accept Message/Tracking Area Update Accept The message includes a message waiting for paging; or

The obtaining module 71 is specifically configured to obtain a service request message/extended service request message sent by the user equipment. The indication module 72 may be specifically configured to send a service rejection message to the user equipment, where the service rejection message includes waiting for paging indication information.

FIG. 8 is a schematic structural diagram of another mobility management network element according to Embodiment 8 of the present invention. As shown in FIG. 8, the mobility management network element of this embodiment may include a learning module 81 and a paging module 82. The obtaining module 81 is configured to send a paging message to the user equipment, and the paging module 82 sends a paging message to the user equipment, so that the user equipment performs the corresponding procedure according to the pre-acquired paging information.

In this embodiment, the paging module may send a paging message to the user equipment by using the learning module to learn that the self-service or other network device is in congestion recovery, and the user equipment is instructed to perform the corresponding process according to the pre-acquired paging instruction information. After the congestion status of the mobility management network element or other network device is effectively solved, the user equipment can be effectively controlled to initiate the request again, which improves the initiative and timeliness of the network processing congestion.

Further, the paging module 82 may be configured to send a paging message to the user equipment, where the user equipment performs the attaching process according to the pre-acquired paging information, or may also be used to send the paging message to the user equipment. And the user equipment performs the service request process or the extended service request process according to the pre-acquired paging instruction information.

Optionally, the foregoing waiting paging indication information may further include an operation indication, and the paging module 82 may further be configured to send a paging message to the user equipment, where the user equipment includes, according to the pre-acquired waiting paging indication information, The operation instructions, the corresponding process is executed. Specifically, the paging module 82 is specifically configured to send a paging message to the user equipment, where the user equipment performs the attaching process according to the attachment indication included in the pre-acquired paging information, or may And the method for sending the paging message to the user equipment, where the user equipment performs the routing area update process/tracking area update process or the attaching process according to the location update indication or the attaching indication included in the pre-acquired paging request indication information; or The paging message may be sent to the user equipment, where the user equipment performs the service request process or the extended service request procedure according to the service request indication or the extended service request indication included in the pre-acquired paging request indication information.

FIG. 9 is a schematic structural diagram of still another mobility management network element according to Embodiment 9 of the present invention. As shown in FIG. 9, the mobility management network element of this embodiment may include a learning module 91 and a paging module 92. The paging module 92 sends a paging message to the user equipment, and the paging message includes an operation indication for the user equipment to execute the corresponding operation instruction.

The functions of the mobility management network element in the third embodiment of the present invention, the mobility management network element in the fourth embodiment of the present invention, the mobility management network element in the fifth embodiment of the present invention, and the mobility management network element in the sixth embodiment of the present invention are all provided by the mobility provided by this embodiment. Management network element implementation.

In this embodiment, the paging module may send a paging message including an operation indication to the user equipment by using the learning module to obtain the operation indication included in the paging message. The process can effectively control the user equipment to initiate the request again after the congestion status of the mobility management network element or other network device is effectively solved, thereby improving the initiative and timeliness of the network processing congestion.

Further, the paging module 92 may be configured to send a paging message to the user equipment, where the paging message includes an attaching indication, where the user equipment performs the attaching process corresponding to the attaching indication, or may be used to the user equipment. Sending a paging message, where the paging message includes a location update indication or an attachment indication, where the user equipment performs the routing area update process/tracking area update process or the attachment process corresponding to the attachment indication corresponding to the location update indication; or And the sending, by the user equipment, a paging message, where the paging message includes a service request indication or an extended service request indication, where the user equipment performs the service request process corresponding to the service request indication or the extended service request indication corresponding extension. Service request process. A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A control method for congestion, characterized in that it comprises:

The mobility management network element acquires a request message sent by the user equipment, where the mobility management network element or other network device is in a congested state;

The mobility management network element sends a waiting paging indication information to the user equipment.

2. The method of claim 1 wherein

The request message includes an attach request message, and the mobile management network element sends the waiting paging indication information to the user equipment, including:

The mobility management network element sends an attach accept message to the user equipment, where the attach accept message includes waiting for paging indication information; or

The request message includes a routing area update request message/tracking area update request message, and the mobile management network element sends the waiting paging indication information to the user equipment, including:

The mobility management network element sends a routing area update accept message/tracking area update accept message to the user equipment, where the routing area update accept message/tracking area update accept message includes waiting page indication information; or

The request message includes a service request message/extended service request message, and the mobile management network element sends the waiting page indication information to the user equipment, including:

The mobility management network element sends a service rejection message to the user equipment, where the service rejection message includes waiting for paging indication information.

The method according to claim 1 or 2, wherein the waiting paging indication information includes an operation indication.

4. A congestion control method, characterized in that:

The method according to claim 4, wherein the mobility management network element is directed to a user The device sends a paging message, for the user equipment to perform the corresponding process according to the pre-acquired paging instruction information, including:

The mobile management network element sends a paging message to the user equipment, for the user equipment to perform an attach procedure according to the pre-fetched paging instruction information; or

The mobility management network element sends a paging message to the user equipment, so that the user equipment performs a service request process or an extended service request procedure according to the pre-fetched paging instruction information.

The method according to claim 4, wherein the waiting paging indication information includes an operation indication, and the mobility management network element sends a paging message to the user equipment, where the user equipment obtains according to the pre-acquisition Waiting for paging instructions, the corresponding process includes:

The mobile management network element sends a paging message to the user equipment, so that the user equipment performs a corresponding process according to the operation instruction included in the pre-fetched paging instruction information.

The method according to claim 6, wherein the mobility management network element sends a paging message to the user equipment, where the user equipment performs according to an operation instruction in the pre-acquired paging appearance indication information. The corresponding process includes:

The mobile management network element sends a paging message to the user equipment, for the user equipment to perform an attach procedure according to the attachment indication included in the pre-fetched paging indication information; or

And the mobile management network element sends a paging message to the user equipment, where the user equipment performs a routing area update process/tracking area update process according to the location update indication included in the pre-fetched paging instruction information; or

And the mobile management network element sends a paging message to the user equipment, where the user equipment performs the service request process or the extended service according to the service request indication or the extended service request indication included in the pre-acquired paging request indication information. Request process.

8. A congestion control method, characterized in that:

The mobility management network element sends a paging message to the user equipment, where the paging message includes an operation indication, so that the user equipment performs a flow corresponding to the operation indication.

The method according to claim 8, wherein the mobility management network element sends a paging message to the user equipment, where the paging message includes an operation indication, where the user equipment performs the operation indication. The corresponding process includes:

The mobile management network element sends a paging message to the user equipment, where the paging message includes an attach indication for the user equipment to perform an attach procedure; or

The mobile management network element sends a paging message to the user equipment, where the paging message includes a location update indication, where the user equipment performs a routing area update process/tracking area update process; or the mobility management network element The user equipment sends a paging message, where the paging message includes a service request indication or an extended service request indication, for the user equipment to perform a service request procedure or an extended service request procedure.

A mobility management network element, where the mobility management network element or other network device is in a congested state, and the method includes:

11. The mobility management network element of claim 10, wherein:

The acquiring module is specifically configured to acquire an attach request message sent by the user equipment, where the indication module is specifically configured to send an attach accept message to the user equipment, where the attach accept message includes a wait for paging indication information; or

The obtaining module is specifically configured to obtain a routing area update request message/tracking area update request message sent by the user equipment, where the indication module is specifically configured to send a routing area update accept message/tracking area update accept message to the user equipment, where The routing area update accept message/tracking area update accept message includes waiting page indication information; or

The obtaining module is specifically configured to obtain a service request message/extended service request message sent by the user equipment, where the indication module is specifically configured to send a service rejection message to the user equipment, where the service rejection message includes a waiting paging indication information.

12. A mobility management network element, comprising: The learning module is configured to learn congestion recovery of itself or other network devices;

13. The mobility management network element according to claim 12, wherein the paging module is specifically configured to:

Sending a paging message to the user equipment, where the user equipment performs an attach procedure according to the pre-acquired paging information; or

And sending a paging message to the user equipment, where the user equipment performs a service request procedure or an extended service request procedure according to the pre-acquired paging instruction information.

The mobile management network element according to claim 12, wherein the waiting paging indication information includes an operation indication, and the paging module is further configured to send a paging message to the user equipment, where The user equipment performs a corresponding process according to the operation instruction included in the pre-acquired paging instruction information.

The mobility management network element according to claim 14, wherein the paging module is specifically used for

Sending a paging message to the user equipment, where the user equipment performs an attach procedure according to the attachment indication included in the pre-acquired paging request indication information; or

Sending a paging message to the user equipment, for the user equipment to perform a routing area update process/tracking area update process according to the location update indication included in the pre-acquired paging request indication information; or

Sending a paging message to the user equipment, for the user equipment to perform a service request procedure or an extended service request procedure according to the service request indication or the extended service request indication included in the pre-acquired paging request indication information.

16. A mobility management network element, comprising:

a paging module, configured to send a paging message to the user equipment, where the paging message includes an operation finger The process is performed for the user equipment to perform the operation indication.

The mobility management network element according to claim 16, wherein the paging module is specifically used for

Sending a paging message to the user equipment, where the paging message includes an attach indication for the user equipment to perform an attach procedure; or

Sending a paging message to the user equipment, where the paging message includes a location update indication, for the user equipment to perform a routing area update process/tracking area update process; or

Sending a paging message to the user equipment, where the paging message includes a service request indication or an extended service request indication, for the user equipment to perform a service request procedure or an extended service request procedure.