WO2011044815A1 - 具有优先级的业务实现方法、MSC/VLR、MME和eNodeB - Google Patents

具有优先级的业务实现方法、MSC/VLR、MME和eNodeB Download PDF

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Publication number
WO2011044815A1
WO2011044815A1 PCT/CN2010/077146 CN2010077146W WO2011044815A1 WO 2011044815 A1 WO2011044815 A1 WO 2011044815A1 CN 2010077146 W CN2010077146 W CN 2010077146W WO 2011044815 A1 WO2011044815 A1 WO 2011044815A1
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Prior art keywords
mme
enodeb
paging
priority
service
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PCT/CN2010/077146
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English (en)
French (fr)
Inventor
朱春晖
梁爽
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中兴通讯股份有限公司
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Publication of WO2011044815A1 publication Critical patent/WO2011044815A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/50Connection management for emergency connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Definitions

  • the present invention relates to the field of communications, and in particular to a priority service for an EPS (Evolved Packet System) ( For example, emergency service) implementation method, Mobile Switching Center (MSC) / Visitor Location Register (VLR), Mobility Management Entity (MME), eNodeB (evolved base station)
  • EPS Evolved Packet System
  • MSC Mobile Switching Center
  • VLR Visitor Location Register
  • MME Mobility Management Entity
  • eNodeB evolved base station
  • Emergency service is a special kind of business. According to the laws of the locality, emergency service is a kind of business that must be successfully carried out in the communication network.
  • the emergency service is a priority service.
  • the emergency service includes the location month service.
  • PSAP Callback with Public Safety Access Point
  • the priority user can be a police station
  • a user with priority such as PSAP
  • MSC/VLR MSC/VLR
  • the MSC and the VLR normally use the incoming call request to send a CS (Circuit Switched) paging message to the EPS network through the SGs interface between the MME and the MSC/VLR, and the EPS network receives the CS paging request message.
  • CS Circuit Switched
  • the MME is overloaded and the eNodeB is notified.
  • the user equipment (User Equipment, UE for short) is already connected to the EPS network.
  • the SGs association relationship has been established between the MME and the MSC/VLR.
  • the UE is in the MSC/
  • the CS paging process includes the following steps: Step 101: The MME attached by the UE cannot receive a new service from the eNodeB because the load is too large, and the sending overload starts to the eNodeB, and the eNodeB saves the MME load. Excessive information; Step 102, the UE has a call, and the UE is the called user.
  • the priority user (such as PSAP) of the UMTS/GSM network where the UE is located receives the initial address message of the incoming call request.
  • call Seeking caller may be any type of fixed or mobile users and other users, a user having priority (e.g., PSAP) query routing process, to connect the call to the MSC / VLR;
  • Step 103 The MSC/VLR receives an incoming call request, and starts paging the called user.
  • the MSC/VLR sends a CS paging message to the MME according to the SGs association information and the like stored in the VLR.
  • Step 104 The MME receives the CS paging request message sent by the MSC/VLR, and starts paging the UE.
  • Step 105 The eNodeB sends a paging message to the UE.
  • the saved information determines that the MME attached to the current UE has been overloaded, and therefore rejects the request of the UE. Therefore, the called party of the UE fails, and the user with priority (such as PSAP) cannot call the user.
  • Including emergency calls initiated by users with priority such as PSAP
  • some users with high priority attributes in the communication network can initiate priority services (such as emergency services).
  • the inventors have found that because of the above-mentioned situation, prior art prioritized services (such as emergency services) cannot guarantee success when the MME is overloaded.
  • SUMMARY OF THE INVENTION The present invention is directed to a prioritized service (e.g., emergency service) implementation method for an EPS, an MSC/VLR, an MME, an eNodeB, to address prior art prioritized services (e.g., emergency services).
  • a prioritized service e.g., emergency service
  • a priority service (e.g., emergency service) implementation method for an EPS comprising the steps of: MSC/VLR receiving a pair from a prioritized user (e.g., PSAP) The initial address message of the UE; the MSC/VLR sends a page to the MME, the page carrying an emergency indication and/or a priority identifier; an emergency indication and/or a priority identifier, establishing a priority user (eg, PSAP) and the UE Communication between the connections.
  • a priority service e.g., emergency service
  • a method for load control including: when an MME is overloaded, the MME sends an overload start message to the eNodeB, where the overload behavior is carried, including: only allowing emergency session and mobile station termination call service
  • the eNodeB After receiving the overload start message of the MME, the eNodeB only allows the radio resource control connection initiated by the UE to establish a traffic with a cause value of a predetermined value, where the predetermined value includes: emergency or mobile station termination call In.
  • an MSC/VLR for an EPS comprising: a receiving module, configured to receive an initial address of a UE from a calling user (eg, a user with priority (such as a PSAP)) a message (eg, a paging message); a sending module, configured to send a page to the MME, the page carrying an emergency indication and/or a priority identifier.
  • a calling user eg, a user with priority (such as a PSAP)
  • a message eg, a paging message
  • a sending module configured to send a page to the MME, the page carrying an emergency indication and/or a priority identifier.
  • an MME for an EPS including: a determining module, configured to determine whether the MME itself is in an overloaded state, and if yes, triggering a sending module; The overload start message is sent to the eNodeB, which carries the overload behavior, including: only the emergency session and the mobile station terminating service are allowed.
  • an MME for an EPS including: a receiving module, configured to receive a paging from a MSC/VLR to a UE; and a sending module, configured to obtain an emergency indication from the paging And/or the priority identifier, the page is sent to the eNodeB in the tracking area list currently registered by the UE.
  • an eNodeB for an EPS including: a receiving module 1002, configured to receive an overload start message from an MME, and a saving module, configured to save an overload behavior carried in the overload start message
  • the overloading behavior includes: allowing only the emergency session and the mobile station to terminate the service; and the processing module, configured to process the service initiated by the UE according to the overloaded line saved in the saving module.
  • an eNodeB for an EPS including: a receiving module, configured to receive a paging for a UE from an MME; and a sending module, configured to obtain an emergency indication from the paging and/or Or a priority identifier, storing information indicating that there is a priority service (such as emergency service), and sending a page to the UE; and an accepting module, configured to determine, according to the saved information, that the UE has a priority service (such as an emergency) Service), accepting a wireless connection setup request from the UE.
  • a receiving module configured to receive a paging for a UE from an MME
  • a sending module configured to obtain an emergency indication from the paging and/or Or a priority identifier, storing information indicating that there is a priority service (such as emergency service), and sending a page to the UE
  • an accepting module configured to determine, according to the saved information, that the UE has a priority service (such as an emergency) Service), accepting a wireless connection setup request from the
  • Prioritized services (such as emergency services) of the prior art cannot guarantee the success when the MME is overloaded, thereby achieving the effect of ensuring successful success in the communication network with priority services (such as emergency services).
  • FIG. 1 is a flowchart of a prioritized user (such as a PSAP) calling back the UE when the MME serving the UE is excessively overloaded in the prior art
  • FIG. 2 is a flowchart according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for implementing priority-oriented services (such as emergency services) for EPS according to an embodiment of the present invention
  • 4 is a flowchart of a prioritized service (emergency service) implementation method for EPS according to an embodiment of the present invention
  • FIG. 5 is a prioritized service for EPS according to an embodiment of the present invention (eg, FIG.
  • FIG. 6 is a flowchart of a method for implementing a priority service (such as an emergency service) for an EPS according to an embodiment of the present invention
  • FIG. 7 is a flowchart of an embodiment of the present invention.
  • FIG. 8 is a block diagram of an MSC/VLR for EPS according to an embodiment of the present invention
  • FIG. 9a is a diagram of a method for implementing a priority service (such as an emergency service) in an EPS
  • FIG. 9b is a block diagram of an MME for EPS according to another embodiment of the present invention
  • FIG. 10a is an eNodeB for EPS according to an embodiment of the present invention.
  • Figure 10b is a block diagram of an eNodeB for EPS according to another embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION will be described in detail with reference to the accompanying drawings in conjunction with the embodiments.
  • Step S10 the MSC/VLR receives an initial address message (for example, paging for the UE) from the UE with priority (such as PSAP);
  • Step S20 the MSC/VLR sends a page to the MME, the homing Calling an emergency indication and/or a priority identifier;
  • Step S30 establishing the priority indication and/or priority identifier, establishing a user with priority
  • the prioritized service (such as emergency service) implementation method can carry out corresponding processing according to the emergency indication and/or priority identifier in the subsequent process because it carries the emergency indication and/or the priority identifier in the paging, so
  • the prioritized services of the prior art (such as emergency services) cannot guarantee the success when the MME is overloaded, and thus the priority services (such as emergency services) are guaranteed to succeed in the communication network. effect.
  • step S30 includes: the MME obtaining an emergency indication and/or a priority identifier from the paging, and sending a page to the eNodeB in the tracking area list currently registered by the UE, where the eNodeB has been The MME notifies that the load is too large; the eNodeB sends a page to the UE; the UE sends a radio connection setup request to the eNodeB, the eNodeB accepts the radio connection setup request; and establishes a circuit domain fallback between the user with priority (such as PSAP) and the UE.
  • priority such as PSAP
  • the eNodeB rejects the paging because it has been notified by the MME that the load is too large.
  • the eNodeB receives a page from the MME, the default is that the page should be an emergency page, and the page is sent to the UE instead of rejecting the page. Therefore, this embodiment achieves the effect of ensuring successful success in a communication network with priority services such as emergency services.
  • 3 is a flow chart of a method for implementing priority-oriented services (such as emergency services) for EPS according to the above-described embodiments of the present invention.
  • Step 301 The MME attached to the UE cannot receive new services from the eNodeB because the load is too large, and the sending overload starts to the eNodeB, where the overload behavior is carried: The emergency session and the mobile station only terminate the service, and the eNodeB saves the information;
  • step 302 the UE has a call, and the UE is the called user.
  • a priority user (e.g., PSAP) of the UMTS/GSM network in which the UE is located receives an initial address message (e.g., an IAM message) for the incoming call request.
  • the calling party of the incoming call request may be any type of user such as a fixed user or a mobile user, and the user with priority (such as PSAP) performs a query routing process, and connects the call to the MSC/VLR; Step 303: MSC/ The VLR receives the incoming call request and starts paging the UE of the called user.
  • the MSC/VLR sends a CS paging message to the MME according to the SGs association information and the like stored in the VLR.
  • the paging message includes an emergency indication and/or a priority identifier, indicating that the paging is a priority service (eg, Emergency service);
  • Step 304 After receiving the paging message, the MME sends an emergency message and/or a priority identifier to the eNodeB in the tracking area list currently registered by the UE, and the paging message carries the emergency message. Instructing and/or priority identification;
  • Step 305 The eNodeB sends a paging message to the UE.
  • Step 306 After receiving the paging message, the UE sends a radio connection establishment request to the eNodeB, where the RRC (Radio Resource Control) is carried.
  • RRC Radio Resource Control
  • the connection establishment cause value is the mobile station terminal call access; after receiving the above request, the eNodeB receives the request according to the overload behavior received in step 301, and continues to perform the normal circuit domain fallback process; Step 307: Completion circuit The domain falls back, establishing a priority user (such as PSAP) to communicate with the UE.
  • a priority user such as PSAP
  • the MME sends a paging message to the eNodeB, and when the eNodeB receives the paging message, the MME can accept that the MME can accept the UE. Month, so there is no subsequent refusal to establish a connection to the above MME for the UE.
  • the method S304 includes: the MME obtaining an emergency indication and/or a priority identifier from the paging, and sending an acceptable service indication to the eNodeB in the currently registered tracking area list, where the eNodeB The MME has been notified that the load is too large; the eNodeB sends a page to the UE; the UE sends a radio connection setup request to the eNodeB, the eNodeB accepts the radio connection setup request; and establishes a circuit domain fallback between the user with priority (such as PSAP) and the UE The MME is overloaded with the eNodeB port.
  • the MME obtaining an emergency indication and/or a priority identifier from the paging, and sending an acceptable service indication to the eNodeB in the currently registered tracking area list, where the eNodeB The MME has been notified that the load is too large; the eNodeB sends a page to the UE; the UE sends a radio connection setup request
  • the MME after receiving the paging of the priority service (such as emergency service), the MME sends an acceptable service indication to the eNodeB to complete the current priority service (such as emergency service); After the service (such as emergency service) is completed, the MME sends an overload indication to the eNodeB. In the meantime, for non-priority services (such as emergency services), the MME refuses to provide monthly services. In this embodiment, the MME first sends an acceptable service indication to the eNodeB, so that if the eNodeB receives the paging from the MME, the default is that the paging should be an emergency paging, and the paging is sent to the UE instead of rejecting the paging.
  • the MME first sends an acceptable service indication to the eNodeB, so that if the eNodeB receives the paging from the MME, the default is that the paging should be an emergency paging, and the paging is sent to the UE instead of rejecting the
  • this embodiment achieves the effect of ensuring successful success in a communication network with priority services such as emergency services.
  • 4 is a flow chart of a method for implementing priority-oriented services (such as emergency services) for EPS according to the above-described embodiments of the present invention.
  • the UE has been registered in the EPS and MSC (CS domain), and the gateway mobile switching center (Gateway Mobile Switching) Center, referred to as GMSC) Calling back to the UE through the CS domain, the call is a non-priority service (such as emergency service), and the EPS performs the process of circuit domain fallback.
  • the MME registered by the UE in the EPS is overloaded.
  • Step 401 The MME attached to the UE cannot receive new services from the eNodeB because the load is too large, and the sending overload starts to the eNodeB, and the eNodeB saves the MME load. Excessive information; Step 402, the UE has a call, and the UE is the called user.
  • a priority user (such as a PSAP) of the UMTS/GSM network in which the UE is located receives the initial address message of the incoming call request.
  • the calling party of the incoming call request may be any type of user such as a fixed user or a mobile user, and the user with priority (such as PSAP) performs a query routing process, and connects the call to the MSC/VLR; Step 403: MSC/ The VLR receives the incoming call request and starts paging the UE of the called user.
  • the MSC/VLR sends a CS paging message to the MME according to the SGs association information stored in the VLR, and the paging message includes an emergency indication and/or a priority identifier, indicating that the paging is a priority service.
  • Step 404 After receiving the paging of the priority service (such as emergency service), the MME sends an acceptable service indication to the eNodeB, indicating that the eNodeB can initiate signaling to the MME.
  • Step 405 MME After receiving the paging message, the emergency indication and/or the priority identifier are sent to the eNodeB in the tracking area list currently registered by the UE.
  • Step 406 The eNodeB sends a paging message to the UE.
  • Step 407 After receiving the paging message, the UE sends a wireless connection establishment request to the eNodeB.
  • the eNodeB may receive the service indication, accept the request, and continue to execute the normal circuit.
  • Embodiments of the present invention also provide a method for rejecting non-priority services (such as emergency services) for the above two embodiments, comprising: MSC/VLR receiving a second page from a GMSC; MSC/VLR transmitting to the MME The second paging, the second paging does not carry the emergency indication and/or the priority identifier; after receiving the second paging, the MME sends a reject paging message to the MSC, where the rejection reason is carried, so that the second paging establishment fails.
  • the MME refuses to provide the service.
  • Step 501 The MME attached to the UE is overloaded. Large, currently unable to accept new services from the eNodeB, the transmission overload starts to the eNodeB, and the eNodeB saves the information that the MME is overloaded;
  • Step 4: 502 The UE has a call, and the user is the called user. Where the UE is located
  • the GMSC of the UMTS/GSM network receives the initial address message (ie, the incoming call request;).
  • the GMSC performs a query routing process to connect the call to the MSC/VLR.
  • the MSC/VLR receives the initial address message (ie, the call incoming call request;);
  • Step 503 The MSC/VLR receives the incoming call request, and starts paging the UE of the called user.
  • the MSC/VLR sends a CS paging message to the MME according to the SGs association information and the like stored in the VLR.
  • Step 504 The MME receives the CS paging request message sent by the MSC, and the MME has already overloaded the data.
  • the service is a service with no priority (such as emergency service), and sends a reject page message to the MSC, where the reason for the rejection is carried, and the reason may be that the load is too large. So it doesn’t have Call setup for a priority service (such as an emergency service) failed.
  • the MME considers that the MME has been overloaded, and is no longer the UE's non-priority service (such as emergency service), and no longer sends a paging message to the eNodeB, so the MME rejects the MSC. Paging, and carrying the reason for the rejection of the response.
  • Step 601 The MME attached to the UE cannot receive new services from the eNodeB because the load is too large. The sending overload starts to the eNodeB, and the eNodeB saves the MME load.
  • the UE has a call, and the UE is the called user.
  • a priority user (such as a PSAP) of the UMTS/GSM network in which the UE is located receives the initial address message of the incoming call request.
  • the calling party of the incoming call request may be any type of user such as a fixed user or a mobile user, and the user with priority (such as PSAP) performs a query routing process, and connects the call to the MSC/VLR;
  • Step 603: MSC/ The VLR receives the incoming call request and starts paging the UE of the called user.
  • the MSC/VLR sends a CS paging message to the MME according to the SGs association information and the like stored in the VLR.
  • the paging message includes an emergency indication and/or a priority identifier, indicating that the paging is a priority service (eg, Emergency service)
  • Step 604 After receiving the paging message, the MME sends an emergency message and/or a priority identifier to the eNodeB in the tracking area list currently registered by the UE, where the paging message carries The emergency indication and/or the priority identifier, the eNodeB determines and saves, according to the emergency indication and/or the priority identifier, information that the user currently has a priority service (such as an emergency service);
  • Step 605 The eNodeB sends a paging message to the UE.
  • Step 606 After receiving the paging message, the UE sends a wireless connection establishment request to the eNodeB. After receiving the above request, the eNodeB saves the information of the priority service (such as emergency service) stored in step 604, and accepts The request continues to perform the normal circuit domain fallback process; Step 607: The network completes the circuit domain fallback, establishing a priority user (such as PSAP) and UE communication.
  • the information saved by the eNodeB determines that the UE has a priority service (such as an emergency service), and does not consider the MME overload information saved by itself, but establishes a signaling connection with the MME to complete the priority.
  • Business such as emergency business).
  • the embodiment of the present invention further provides a method for rejecting a non-priority service (such as an emergency service) for the foregoing embodiment, including: the MSC/VLR receives a second page from the GMSC; and the MSC/VLR sends a second search to the MME.
  • the second paging does not carry the emergency indication and/or the priority identifier; if the MME does not obtain the emergency indication and/or the priority identifier from the second paging, the MME sends the first to the eNodeB in the currently registered tracking area list of the UE.
  • the second paging does not carry the emergency indication and/or the priority identifier, where the eNodeB has been notified by the MME that the load is too large; the eNodeB does not obtain the emergency indication and/or the priority identifier from the paging, and is not saved.
  • a priority service such as emergency service
  • FIG. 7 is a flowchart of a method for implementing a priority service (such as an emergency service) for an EPS according to the foregoing embodiment of the present invention.
  • the UE has registered in the EPS and the MSC (CS domain), and the GMSC calls the UE through the CS domain.
  • the callback is a non-priority service (such as emergency service), and the EPS performs the process of circuit domain fallback.
  • the MME registered by the UE in the EPS is overloaded.
  • the specific step 4 is as follows: Step 4: 701.
  • the MME attached to the UE cannot receive new services from the eNodeB due to excessive load.
  • the sending overload starts to the eNodeB, eNodeB.
  • Step 702 The UE has a call, and the user is the called user.
  • the GMSC of the UMTS/GSM network where the UE is located receives the initial address message (ie, the incoming call request;).
  • the GMSC performs a query routing process to connect the call to the MSC/VLR.
  • the MSC/VLR receives the initial address message (ie, the call incoming call request;);
  • the MSC/VLR sends a CS paging message to the MME according to the SGs association information and the like stored in the VLR.
  • Step 704 The MME receives the CS paging request message sent by the MSC/VLR, and starts paging the UE. Sending a paging message to the eNodeB; Step 705: The eNodeB sends a paging message to the UE. Step 706: After receiving the paging message, the UE sends a radio connection establishment request to the eNodeB. After receiving the request, the eNodeB does not obtain the priority of the user in step 704.
  • the information of the service (such as the emergency service), so that the current UE's service is a non-priority service (such as an emergency service), and the MME attached to the UE obtained in step 701 has been overloaded with information.
  • the user with priority (such as PSAP) paging to the UE is a priority user (such as PSAP) to the priority service (such as emergency service) from the UE. Call back.
  • a priority user such as PSAP
  • 8 is a block diagram of an MSC/VLR for EPS according to an embodiment of the present invention, including: a receiving module 802, configured to receive a paging of a UE from a priority user (such as a PSAP); 804.
  • FIG. 9 is a block diagram of an MME for EPS according to an embodiment of the present invention, including: a determining module 901, configured to determine whether the MME itself is in an overloaded state, and if so, triggering the sending module 903; and sending a module 903, Used to send an overload to the eNodeB, which carries the overload behavior: only emergency sessions and mobile station termination services are allowed.
  • a determining module 901 configured to determine whether the MME itself is in an overloaded state, and if so, triggering the sending module 903
  • sending a module 903 Used to send an overload to the eNodeB, which carries the overload behavior: only emergency sessions and mobile station termination services are allowed.
  • FIGb is a block diagram of an MME for EPS according to another embodiment of the present invention, including: a receiving module 902, configured to receive a paging from a MSC/VLR to a UE; and a sending module 904, configured to If an emergency indication and/or priority identifier is obtained, a page is sent to the eNodeB.
  • Figure 10a is a block diagram of an eNodeB for EPS according to an embodiment of the present invention, comprising: The receiving module 1001 is configured to receive an overload start message from the UI; the saving module 1003 is configured to save the overload behavior carried in the overload start message, where the overload behavior includes: only allowing emergency session and mobile station termination call service; 1005.
  • the overload behavior saved in the save module is used to process the service initiated by the UE.
  • the processing module 1005 only allows the UE to initiate a radio resource control connection establishment cause value of "emergency, or "mobile station terminal call access” service, that is, only traffic of such service is allowed to pass.
  • FIG. 10b is based on this
  • a block diagram of an eNodeB for EPS includes: a receiving module 1002, configured to receive a paging from a MME to a UE; and a sending module 1004, configured to obtain an emergency indication and/or a priority identifier from the paging And storing information indicating that there is a priority service (such as an emergency service), and sending a page to the UE; the receiving module 1006 is configured to determine, according to the saved information, that the UE has a priority service (such as an emergency service), Accepting the wireless connection establishment request from the UE.
  • a priority service such as an emergency service
  • the MSC/VLR, the MME, and the eNodeB of the foregoing embodiment may be used to implement the prioritized service (such as emergency service) implementation method of the foregoing embodiment of the present invention, thereby achieving priority Service (such as emergency service) guarantees the effect of successful operation in the communication network.
  • priority Service such as emergency service
  • the priority service (such as emergency service) cannot guarantee the success when the MME is overloaded, and thus achieves the effect that the priority service (such as emergency service) guarantees success in the communication network.
  • the above-described modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network of multiple computing devices. They can be implemented by program code executable by the computing device so that they can be stored in the storage device by the computing device, or they can be made into individual integrated circuit modules, or multiple modules of them or The steps are made into a single integrated circuit module.
  • the invention is not limited to any particular hardware and software Combine.

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  • Telephonic Communication Services (AREA)

Description

具有优先级的业务实现方法、 MSC/VLR、 MME和 eNodeB 技术领域 本发明涉及通信领域, 具体而言, 涉及一种用于 EPS ( Evolved Packet System, 演进的分组系统) 的具有优先级的业务 (例如, 紧急业务) 实现方 法、 移动交换中心 (Mobile Switching Center, 简称 MSC ) /拜访位置寄存器 ( Visitor Location Register , 简称 VLR ) , 移动性管理实体 ( Mobility Management Entity, 简称 MME ), eNodeB (演进的基站 )„ 背景技术 紧急业务是一种特殊业务, 根据所在地方的法律, 紧急业务是必须在通 信网络中保证成功进行的一种业务, 紧急业务是具有优先级的业务。 紧急业 务包括位置月艮务和公共安全接入点( Public Safety Access Point,简称为 PSAP ) 的回呼(注: 该具有优先级的用户(如 PSAP )的可以是警察局 ), 即具有优先 级的用户(如 PSAP )发起到用户的语音呼叫; 此时如果被叫用户是在 EPS网 络接入, MSC/VLR ( MSC和 VLR通常同时使用)接收到入呼请求通过 MME 和所述 MSC/VLR之间的 SGs接口给 EPS网络发 CS ( Circuit Switched, 切 换电路) 寻呼消息, EPS 网络接收到 CS寻呼请求消息, 进行呼叫电路域回 落。 图 1为现有技术中当为 UE月艮务的 MME负荷过大时, 具有优先级的用 户(如 PSAP )回呼该 UE的流程图, 图 1的场景下, MME负荷过大并通知了 eNodeB , jt匕时用户设备 ( User Equipment , 简称 UE ) 已经在 EPS网络接入, MME和所述 MSC/VLR之间已经建立了 SGs关联关系, UE在所述 MSC/VLR 和 MME中都有注册信息。 该 CS寻呼流程包括以下步骤: 步骤 101 , UE附着的 MME由于负荷过大, 当前不能从 eNodeB接受新 的业务, 发送过载开始给 eNodeB, eNodeB保存该 MME负荷过大的信息; 步骤 102 , UE 有一个呼叫, 并且 UE 是被呼叫的用户。 UE 所在的 UMTS/GSM网络的具有优先级的用户(如 PSAP )接收到入呼请求的初始地址 消息。 该入呼请求的主叫方可以是固定用户或移动用户等任意类型的用户, 具有优先级的用户(如 PSAP ) 进行查询路由过程, 将呼叫接续到所述 MSC/VLR; 步骤 103 , 所述 MSC/VLR接收到入呼请求, 开始寻呼被叫用户。 根据 VLR中保存的 SGs关联关系信息等, 所述 MSC/VLR给 MME发送一个 CS 寻呼消息; 步骤 104, MME接收到所述 MSC/VLR发来的 CS寻呼请求消息, 开始 寻呼 UE, 向 eNodeB发送寻呼消息; 步骤 105 , eNodeB向 UE发送寻呼消息; 步骤 106, UE 收到寻呼消息后, 向 eNodeB 发送无线连接建立请求; eNodeB收到上述请求后,才艮据步骤 101中保存的信息, 判断当前 UE附着的 MME已经负荷过大, 因此拒绝该 UE的请求。 因此该 UE的被叫失败, 具有 优先级的用户(如 PSAP ) 无法呼叫该用户。 包括具有优先级的用户(如 PSAP )发起的紧急呼叫, 通信网络中的一些 具有高优先级属性的用户可以发起具有优先级的业务 (如紧急业务)。 发明人发现因为上述情况的存在,导致现有技术的具有优先级的业务(如 紧急业务) 在 MME负荷过大时无法保证成功。 发明内容 本发明旨在提供一种用于 EPS的具有优先级的业务(如紧急业务) 实现 方法、 MSC/VLR、 MME、 eNodeB, 以解决现有技术的具有优先级的业务(如 紧急业务) 在 MME负荷过大时无法保证成功的问题。 才艮据本发明的一个方面, 提供了一种用于 EPS的具有优先级的业务(如 紧急业务) 实现方法, 包括以下步骤: MSC/VLR接收来自具有优先级的用 户(如 PSAP )的对 UE的初始地址消息; MSC/VLR向 MME发送寻呼, 该寻 呼携带紧急指示和 /或优先级标识; 居紧急指示和 /或优先级标识, 建立具 有优先级的用户(例如 PSAP ) 与 UE之间的通信连接。 根据本明的另一个方面, 提供了一种负荷控制的方法, 包括: 当 MME 过载时, MME发送过载开始消息给 eNodeB, 其中携带有过载行为, 包括: 仅允许紧急会话和移动台终呼业务; 所述 eNodeB接收到所述 MME的所述 过载开始消息之后, 仅允许 UE发起的无线资源控制连接建立原因值为预定 值的流量, 其中, 所述预定值包括: 紧急或移动台终呼接入。 根据本发明的另一方面, 提供了一种用于 EPS的 MSC/VLR, 包括: 接 收模块, 用于接收来自主叫用户 (如具有优先级的用户(如 PSAP ) ) 的对 UE 的初始地址消息(例如, 寻呼消息); 发送模块, 用于向 MME发送寻呼, 该 寻呼携带紧急指示和 /或优先级标识。 根据本发明的另一个方面, 提供了一种用于 EPS的 MME, 包括: 判断 模块, 用于判断所述 MME 自身是否处于负荷过大状态, 如果是, 触发发送 模块; 所述发送模块, 用于发送过载开始消息给 eNodeB , 其中携带有过载 行为, 包括: 仅允许紧急会话和移动台终呼业务。 根据本发明的另一方面, 提供了另一种用于 EPS的 MME, 包括: 接收 模块, 用于接收来自 MSC/VLR的对 UE的寻呼; 发送模块, 用于从寻呼中 获取紧急指示和 /或优先级标识,则向 UE当前注册的跟踪区列表中的 eNodeB 发送寻呼。 根据本发明的又一个方面, 提供了一种用于 EPS的 eNodeB, 包括: 接 收模块 1002, 用于接收来自 MME的过载开始消息; 保存模块, 用于保存所 述过载开始消息中携带的过载行为, 其中, 所述过载行为包括: 仅允许紧急 会话和移动台终呼业务; 处理模块, 用于根据所述保存模块中保存的所述过 载行, 处理 UE发起的业务。 根据本发明的另一方面, 提供了另一种用于 EPS的 eNodeB , 包括: 接 收模块, 用于接收来自 MME的对 UE的寻呼; 发送模块, 用于从寻呼中获 取紧急指示和 /或优先级标识,则保存指示有具有优先级的业务(如紧急业务) 的信息, 并向 UE发送寻呼; 接受模块, 用于根据所保存的信息确定 UE有 具有优先级的业务 (如紧急业务), 接受来自 UE的无线连接建立请求。 上述实施例的用于 EPS的具有优先级的业务 (如紧急业务) 实现方法、 MSC/VLR, MME、 eNodeB 因为在寻呼中携带紧急指示和 /或优先级标识并 进行相应地处理, 所以克艮了现有技术的具有优先级的业务 (如紧急业务) 在 MME负荷过大时无法保证成功的问题,进而达到了具有优先级的业务(如 紧急业务) 在通信网络中保证成功进行的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中: 图 1为现有技术中当为 UE服务的 MME负荷过大时, 具有优先级的用 户(如 PSAP ) 回呼该 UE的流程图; 图 2为根据本发明一个实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图; 图 3为根据本发明一个实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图; 图 4为根据本发明一个实施例的用于 EPS的具有优先级的业务(紧急业 务) 实现方法的流程图; 图 5为根据本发明一个实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图; 图 6为根据本发明一个实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图; 图 7为根据本发明一个实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图; 图 8为才艮据本发明一个实施例的用于 EPS的 MSC/VLR的方框图; 图 9a为才艮据本发明一个实施例的用于 EPS的 MME的方框图; 图 9b为才艮据本发明另一个实施例的用于 EPS的 MME的方框图; 图 10a为才艮据本发明一个实施例的用于 EPS的 eNodeB的方框图; 图 10b为才艮据本发明另一个实施例的用于 EPS的 eNodeB的方框图。 具体实施方式 下面将参考附图并结合实施例, 来详细说明本发明。 图 2为根据本发明一个实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图, 包括以下步^^ 步骤 S 10, MSC/VLR接收来自具有优先级的用户(如 PSAP )的对 UE的 初始地址消息 (例如, 对该 UE的寻呼); 步骤 S20, MSC/VLR向 MME发送寻呼, 该寻呼携带紧急指示和 /或优 先级标识; 步骤 S30, 居上述紧急指示和 /或优先级标识, 建立具有优先级的用户
(如 PSAP ) 与 UE之间的通信连接。 该具有优先级的业务 (如紧急业务) 实现方法因为在寻呼中携带紧急指 示和 /或优先级标识, 因此在后续过程中能够根据该紧急指示和 /或优先级标 识进行相应地处理, 所以克艮了现有技术的具有优先级的业务(如紧急业务) 在 MME负荷过大时无法保证成功的问题,进而达到了具有优先级的业务(如 紧急业务) 在通信网络中保证成功进行的效果。 可选地, 在上述的方法中, 步骤 S30 包括: MME从寻呼中获取紧急指 示和 /或优先级标识,则向 UE当前注册的跟踪区列表中的 eNodeB发送寻呼, 其中, eNodeB已经被 MME通知了负荷过大; eNodeB向 UE发送寻呼; UE 向 eNodeB发送无线连接建立请求, eNodeB接受无线连接建立请求; 建立具 有优先级的用户(如 PSAP ) 与 UE之间的电路域回落。 上面给出了根据该紧急指示和 /或优先级标识进行相应地处理的一个实 施例。 现有技术中, eNodeB由于已经被 MME通知了负荷过大, 所以会拒绝 该寻呼。 而该实施例中, eNodeB如果收到了来自 MME的寻呼, 则默认为该 寻呼应该是紧急寻呼, 并且向 UE发送寻呼而不是拒绝该寻呼。 因此, 该实 施例达到了具有优先级的业务 (如紧急业务) 在通信网络中保证成功进行的 效果。 图 3为根据本发明上述实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图, UE已经在 EPS和 MSC ( CS域) 注册, 具有优 先级的用户(如 PSAP )通过 CS域回呼 UE, EPS执行电路域回落的流程。 该 场景中 UE在 EPS注册的 MME已经负荷过大, 具体步骤如下: 步骤 301 , UE附着的 MME由于负荷过大, 当前不能从 eNodeB接受新 的业务, 发送过载开始给 eNodeB , 其中携带过载行为: 仅允许紧急会话和 移动台终呼业务, eNodeB保存该信息; 步骤 302 , UE 有一个呼叫, 并且 UE 是被呼叫的用户。 UE 所在的 UMTS/GSM网络的具有优先级的用户(如 PSAP )接收到入呼请求的初始地址 消息 (例如, IAM 消息)。 该入呼请求的主叫方可以是固定用户或移动用户 等任意类型的用户, 具有优先级的用户(如 PSAP ) 进行查询路由过程, 将呼 叫接续到所述 MSC/VLR; 步骤 303 : MSC/VLR接收到入呼请求, 开始寻呼被叫用户的 UE。 根据 VLR中保存的 SGs关联关系信息等, MSC/VLR给 MME发送一个 CS寻呼 消息, 该寻呼消息中包含紧急指示和 /或优先级标识, 表明该寻呼为具有优先 级的业务 (如紧急业务); 步骤 304: MME收到上述寻呼消息后, 居其中的紧急指示和 /或优先 级标识, 向 UE 当前注册的跟踪区列表中的 eNodeB发送寻呼消息, 寻呼消 息中携带紧急指示和 /或优先级标识; 步骤 305: eNodeB向 UE发送寻呼消息; 步骤 306: UE收到寻呼消息后, 向 eNodeB发送无线连接建立请求, 其 中携带的 RRC ( Radio Resource Control, 无线资源控制) 连接建立原因值为 移动台终呼接入; eNodeB 收到上述请求后, 才艮据步骤 301 中收到的过载行 为, 接受该请求, 继续执行正常的电路域回落流程; 步骤 307: 完成电路域回落, 建立具有优先级的用户(如 PSAP )与该 UE 的通信。 该实施例中, 当 MSC发给 MME的 page消息中携带紧急指示和 /或优先 级标识时, MME才向 eNodeB发送寻呼消息, 当 eNodeB收到该寻呼消息就 认为 MME可以接受为该 UE月艮务,因此后续不拒绝为该 UE建立到上述 MME 的连接。 可选地, 在上述的方法中, S304包括: MME从寻呼中获取紧急指示和 / 或优先级标识, 则向 UE 当前注册的 艮踪区列表中的 eNodeB发送可以接受 业务指示, 其中, eNodeB已经被 MME通知了负荷过大; eNodeB向 UE发 送寻呼; UE向 eNodeB发送无线连接建立请求, eNodeB接受无线连接建立 请求; 建立具有优先级的用户(如 PSAP ) 与 UE 之间的电路域回落; MME 向 eNodeB通 口负荷过大。 该实施例中, MME 收到具有优先级的业务 (如紧急业务) 的寻呼后, 向 eNodeB发送可以接受业务指示, 以完成当前的具有优先级的业务 (如紧 急业务); 当具有优先级的业务 (如紧急业务) 完成后, MME再向 eNodeB 发送负荷过大指示。 在此之间, 对于非具有优先级的业务 (如紧急业务), MME拒绝提供月艮务。 该实施例 MME先向 eNodeB发送可以接受业务指示, 从而 eNodeB如果收到了来自 MME的寻呼, 则默认为该寻呼应该是紧急寻 呼, 并且向 UE发送寻呼而不是拒绝该寻呼。 因此, 该实施例达到了具有优 先级的业务 (如紧急业务) 在通信网络中保证成功进行的效果。 图 4为根据本发明上述实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图, UE已经在 EPS和 MSC ( CS域) 注册, 关口移 动交换中心 ( Gateway Mobile Switching Center, 简称 GMSC ) 通过 CS域回 呼 UE, 该呼叫为非具有优先级的业务(如紧急业务), EPS执行电路域回落 的流程。 该场景中 UE在 EPS注册的 MME已经负荷过大, 具体步骤如下: 步骤 401 , UE附着的 MME由于负荷过大, 当前不能从 eNodeB接受新 的业务, 发送过载开始给 eNodeB, eNodeB保存该 MME负荷过大的信息; 步骤 402 , UE 有一个呼叫, 并且 UE 是被呼叫的用户。 UE 所在的 UMTS/GSM网络的具有优先级的用户(如 PSAP )接收到入呼请求的初始地址 消息。 该入呼请求的主叫方可以是固定用户或移动用户等任意类型的用户, 具有优先级的用户(如 PSAP ) 进行查询路由过程, 将呼叫接续到所述 MSC/VLR; 步骤 403: MSC/VLR接收到入呼请求, 开始寻呼被叫用户的 UE。 才艮据 VLR中保存的 SGs关联关系信息等, MSC/VLR给 MME发送一个 CS寻呼 消息, 该寻呼消息中包含紧急指示和 /或优先级标识, 表明该寻呼为具有优先 级的业务 (如紧急业务); 步骤 404, 当 MME收到具有优先级的业务 (如紧急业务) 的寻呼后, 向 eNodeB发送可以接受业务指示,指示 eNodeB可以向上述 MME发起信令; 步骤 405: MME收到上述寻呼消息后, 居其中的紧急指示和 /或优先 级标识, 向 UE当前注册的跟踪区列表中的 eNodeB发送寻呼消息; 步骤 406: eNodeB向 UE发送寻呼消息; 步骤 407: UE 收到寻呼消息后, 向 eNodeB 发送无线连接建立请求; eNodeB收到上述请求后, 居步 4聚 404中收到的 MME可以接受业务指示, 接受该请求, 继续执行正常的电路域回落流程; 步骤 408: 网络完成电路域回落, 建立具有优先级的用户(如 PSAP ) 与 该 UE的通信。 步骤 409, 当具有优先级的业务(如紧急业务)完成后, MME向 eNodeB 发送负荷过大指示。 在该实施例中, MME 根据是否有紧急指示和 /或优先级标识, 决定向 eNodeB发送可以接受业务指示, 以完成具有优先级的业务 (如紧急业务)。 本发明的实施例还提供了针对上述两个实施例的拒绝非具有优先级的业 务 (如紧急业务) 的方法, 包括: MSC/VLR接收来自 GMSC的第二寻呼; MSC/VLR向 MME发送第二寻呼, 第二寻呼不携带紧急指示和 /或优先级标 识; MME接收到第二寻呼后, 向 MSC发送拒绝寻呼消息, 其中携带拒绝原 因, 以使第二寻呼建立失败。 例如, 关于图 3和图 4的实施例, 对于不具有 优先级的业务 (如紧急业务), MME拒绝提供服务。 图 5为 居本发明上述实施例的用于 EPS的优先级业务实现方法的流程 图, 回呼为不具有优先级的业务的场景, 具体包括以下步骤; 步骤 501 , UE附着的 MME由于负荷过大, 当前不能从 eNodeB接受新 的业务, 发送过载开始给 eNodeB, eNodeB保存该 MME负荷过大的信息; 步 4聚 502: UE 有一个呼叫, 并且该用户是被呼叫的用户。 UE 所在的
UMTS/GSM网络的 GMSC接收到初始地址消息(即入呼请求;)。 GMSC进行 查询路由过程, 将呼叫接续到所述 MSC/VLR。 所述 MSC/VLR接收到该初 始地址消息 (即呼叫入呼请求;); 步骤 503 : 所述 MSC/VLR接收到入呼请求, 开始寻呼被叫用户的 UE。 根据 VLR中保存的 SGs关联关系信息等, 所述 MSC/VLR给 MME发送一 个 CS寻呼消息; 步骤 504: MME接收到 MSC发来的 CS寻呼请求消息, 才艮据自身已经 负荷过大, 以及该业务为不具有优先级的业务(如紧急业务), 向 MSC发送 拒绝寻呼消息, 其中携带拒绝原因, 该原因可以是负荷过大。 因此该不具有 优先级的业务 (如紧急业务) 的呼叫建立失败。 该实施例中, MME认为自己已经负荷过大了, 不再为 UE的不具有优先 级的业务(如紧急业务)月艮务,也就不再向 eNodeB发送寻呼消息,因此 MME 拒绝 MSC的寻呼, 并携带响应的拒绝原因。 图 6为根据本发明上述实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图, UE已经在 EPS和 MSC ( CS域) 注册, 具有优 先级的用户(如 PSAP )通过 CS域回呼 UE, EPS执行电路域回落的流程。 该 场景中 UE在 EPS注册的 MME已经负荷过大, 具体步骤如下: 步骤 601 , UE附着的 MME由于负荷过大, 当前不能从 eNodeB接受新 的业务, 发送过载开始给 eNodeB, eNodeB保存该 MME负荷过大的信息; 步骤 602 , UE 有一个呼叫, 并且 UE 是被呼叫的用户。 UE 所在的 UMTS/GSM网络的具有优先级的用户(如 PSAP )接收到入呼请求的初始地址 消息。 该入呼请求的主叫方可以是固定用户或移动用户等任意类型的用户, 具有优先级的用户(如 PSAP ) 进行查询路由过程, 将呼叫接续到所述 MSC/VLR; 步骤 603 : MSC/VLR接收到入呼请求, 开始寻呼被叫用户的 UE。 根据 VLR中保存的 SGs关联关系信息等, MSC/VLR给 MME发送一个 CS寻呼 消息, 该寻呼消息中包含紧急指示和 /或优先级标识, 表明该寻呼为具有优先 级的业务 (如紧急业务); 步骤 604: MME收到上述寻呼消息后, 居其中的紧急指示和 /或优先 级标识, 向 UE 当前注册的跟踪区列表中的 eNodeB发送寻呼消息, 该寻呼 消息中携带紧急指示和 /或优先级标识, eNodeB根据该紧急指示和 /或优先级 标识判断并保存该用户当前有具有优先级的业务 (如紧急业务) 的信息; 步骤 605 , eNodeB向 UE发送寻呼消息; 步骤 606: UE 收到寻呼消息后, 向 eNodeB 发送无线连接建立请求; eNodeB 收到上述请求后, 居步骤 604 中保存的该用户有具有优先级的业 务 (如紧急业务) 的信息, 接受该请求, 继续执行正常的电路域回落流程; 步骤 607: 网络完成电路域回落, 建立具有优先级的用户(如 PSAP ) 与 该 UE的通信。 该实施例中, eNodeB 居所保存的信息确定 UE有具有优先级的业务 (如紧急业务), 从而不考虑自身保存的上述 MME负荷过大信息, 而与上述 MME建立信令连接, 完成具有优先级的业务 (如紧急业务)。 本发明实施例还提供了针对上述实施例的拒绝非具有优先级的业务 (如 紧急业务)的方法,包括: MSC/VLR接收来自 GMSC的第二寻呼; MSC/VLR 向 MME发送第二寻呼, 第二寻呼不携带紧急指示和 /或优先级标识; MME 从第二寻呼中没有获取紧急指示和 /或优先级标识, 则向 UE当前注册的 艮踪 区列表中的 eNodeB发送第二寻呼, 第二寻呼不携带紧急指示和 /或优先级标 识, 其中, eNodeB已经被 MME通知了负荷过大; eNodeB从寻呼中没有获 取紧急指示和 /或优先级标识, 则没有保存指示有具有优先级的业务(如紧急 业务) 的信息, 并向 UE发送寻呼; UE向 eNodeB发送无线连接建立请求, eNodeB 居没有保存指示有具有优先级的业务 (如紧急业务) 的信息确定 UE没有具有优先级的业务(如紧急业务), 则拒绝无线连接建立请求, 以使 第二寻呼建立失败。 图 7为根据本发明上述实施例的用于 EPS的具有优先级的业务(如紧急 业务) 实现方法的流程图, UE已经在 EPS和 MSC ( CS域) 注册, GMSC 通过 CS域回呼 UE, 该回呼为非具有优先级的业务 (如紧急业务), EPS执 行电路域回落的流程。 该场景中 UE在 EPS注册的 MME已经负荷过大, 具 体步 4聚如下: 步 4聚 701 , UE附着的 MME由于负荷过大, 当前不能从 eNodeB接受新 的业务, 发送过载开始给 eNodeB, eNodeB保存该 MME负荷过大的信息; 步骤 702: UE 有一个呼叫, 并且该用户是被呼叫的用户。 UE 所在的 UMTS/GSM网络的 GMSC接收到初始地址消息(即入呼请求;)。 GMSC进行 查询路由过程, 将呼叫接续到所述 MSC/VLR。 所述 MSC/VLR接收到该初 始地址消息 (即呼叫入呼请求;); 步骤 703 , 所述 MSC/VLR接收到入呼请求, 开始寻呼被叫用户。 根据 VLR中保存的 SGs关联关系信息等, 所述 MSC/VLR给 MME发送一个 CS 寻呼消息; 步骤 704, MME接收到所述 MSC/VLR发来的 CS寻呼请求消息, 开始 寻呼 UE, 向 eNodeB发送寻呼消息; 步骤 705 , eNodeB向 UE发送寻呼消息; 步骤 706, UE 收到寻呼消息后, 向 eNodeB 发送无线连接建立请求; eNodeB 收到上述请求后, 由于步骤 704 中没有获得该用户有具有优先级的 业务 (如紧急业务) 的信息, 因此判断当前 UE的业务为非具有优先级的业 务(如紧急业务), 同时根据步骤 701中获得并保存的该 UE附着的 MME已 经负荷过大的信息, 因此拒绝该 UE的请求。 因此该 UE的被叫失败, 具有 优先级的用户(如 PSAP ) 无法呼叫该用户。 可选地, 在上述任一项的方法中, 具有优先级的用户(如 PSAP )对 UE 的寻呼是具有优先级的用户(如 PSAP )对来自 UE的具有优先级的业务 (如 紧急业务) 的回呼。 当然, 也可以将具有优先级的用户(如 PSAP )对 UE的 所有寻呼都作为具有优先级的业务 (如紧急业务) 来处理。 图 8为才艮据本发明一个实施例的用于 EPS的 MSC/VLR的方框图,包括: 接收模块 802 , 用于接收来自具有优先级的用户(如 PSAP ) 的对 UE的 寻呼; 发送模块 804 , 用于向 MME发送寻呼, 寻呼携带紧急指示和 /或优先级 标识。 图 9a为才艮据本发明一个实施例的用于 EPS的 MME的方框图, 包括: 判断模块 901 , 用于判断 MME 自身是否处于负荷过大状态, 如果是, 触发发送模块 903 ; 发送模块 903 , 用于发送过载开始给 eNodeB, 其中携带过载行为:仅允 许紧急会话和移动台终呼业务。 图 9b为才艮据本发明另一个实施例的用于 EPS的 MME的方框图, 包括: 接收模块 902 , 用于接收来自 MSC/VLR的对 UE的寻呼; 发送模块 904 , 用于从寻呼中获取紧急指示和 /或优先级标识, 则向 eNodeB发送寻呼。 图 10a为才艮据本发明一个实施例的用于 EPS的 eNodeB的方框图,包括: 接收模块 1001 , 用于接收来自 ΜΜΕ的过载开始消息; 保存模块 1003 , 用于保存过载开始消息中携带的过载行为, 其中, 该过 载行为包括: 仅允许紧急会话和移动台终呼业务; 处理模块 1005 , 用于 居保存模块中保存的过载行为, 处理 UE发起的 业务。 具体地,处理模块 1005只允许 UE发起的无线资源控制连接建立原因值 为 "紧急,, 或 "移动台终呼接入" 的业务, 即只允许这类业务的流量通过。 图 10b为根据本发明一个实施例的用于 EPS的 eNodeB的方框图,包括: 接收模块 1002 , 用于接收来自 MME的对 UE的寻呼; 发送模块 1004 , 用于从寻呼中获取紧急指示和 /或优先级标识, 则保存 指示有具有优先级的业务 (如紧急业务) 的信息, 并向 UE发送寻呼; 接受模块 1006 ,用于根据所保存的信息确定 UE有具有优先级的业务(如 紧急业务), 接受来自 UE的无线连接建立请求。 上述实施例的 MSC/VLR、 MME和 eNodeB可以用于实现本发明上述实 施例的具有优先级的业务 (如紧急业务) 实现方法, 从而达到了具有优先级 的业务 (如紧急业务) 在通信网络中保证成功进行的效果。 从以上的描述中, 可以看出, 本发明上述实施例的用于 EPS的具有优先 级的业务(如紧急业务) 实现方法、 MSC/VLR、 MME、 eNodeB因为在寻呼 中携带紧急指示和 /或优先级标识并进行相应地处理,所以克月艮了现有技术的 具有优先级的业务(如紧急业务)在 MME负荷过大时无法保证成功的问题, 进而达到了具有优先级的业务 (如紧急业务) 在通信网络中保证成功进行的 效果。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而可以将它们存储在存储装置中由计算装置来执行, 或者 将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作 成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软件 结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的 ^"神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种用于演进的分组系统的具有优先级的业务实现方法, 其特征在于, 包括以下步 4聚:
所述 MSC/VLR向移动性管理实体 MME发送寻呼请求, 所述寻呼 请求携带紧急指示和 /或优先级标识;
MME优先处理所述寻呼请求以及后续的电路域回落过程。
2. 根据权利要求 1所述的方法, 其特征在于, 根据所述紧急指示和 /或优先 级标识, MME优先处理所述寻呼请求以及后续的电路域回落过程包括: 所述 MME从所述寻呼中获取所述紧急指示和 /或优先级标识, 则向 所述 UE当前注册的跟踪区列表中的演进的基站 eNodeB发送所述寻呼, 其中, 所述 eNodeB已经被所述 MME通知了负荷过大;
所述 eNodeB向所述 UE发送所述寻呼;
所述 UE向所述 eNodeB发送无线连接建立请求,所述 eNodeB接受 所述无线连接建立请求;
所述 UE完成电路 i或回落。
3. 根据权利要求 1所述的方法, 其特征在于, 根据所述紧急指示和 /或优先 级标识, MME优先处理所述寻呼请求以及后续的电路域回落过程包括: 所述 MME从所述寻呼中获取所述紧急指示和 /或优先级标识, 则向 所述 UE 当前注册的 艮踪区列表中的 eNodeB发送能够接受业务指示, 其中, 所述 eNodeB已经被所述 MME通知了负荷过大;
所述 eNodeB向所述 UE发送所述寻呼;
所述 UE向所述 eNodeB发送无线连接建立请求,所述 eNodeB接受 所述无线连接建立请求;
所述 UE完成电路 i或回落;
所述 MME向所述 eNodeB通知负荷过大。
4. 根据权利要求 2或 3所述的方法, 其特征在于, 还包括:
MSC/VLR接收来自关口移动交换中心 GMSC的第二寻呼; 所述 MSC/VLR向所述 MME发送所述第二寻呼, 所述第二寻呼不 携带紧急指示和 /或优先级标识;
所述 MME接收到所述第二寻呼后,向所述 MSC发送拒绝寻呼消息, 其中携带拒绝原因, 以使所述第二寻呼建立失败。
5. 根据权利要求 1所述的方法, 其特征在于, 根据所述紧急指示和 /或优先 级标识, MME优先处理所述寻呼请求以及后续的电路域回落过程包括: 所述 MME从所述寻呼中获取所述紧急指示和 /或优先级标识, 则向 所述 UE 当前注册的 艮踪区列表中的 eNodeB发送所述寻呼, 所述寻呼 携带所述紧急指示和 /或优先级标识, 其中, 所述 eNodeB 已经被所述 MME通知了负荷过大;
所述 eNodeB从所述寻呼中获取所述紧急指示和 /或优先级标识, 则 保存指示有具有优先级的业务的信息, 并向所述 UE发送所述寻呼; 所述 UE向所述 eNodeB发送无线连接建立请求,所述 eNodeB根据 所保存的信息确定所述 UE有具有优先级的业务, 则接受所述无线连接 建立请求;
建立所述具有优先级的用户与所述 UE之间的电路域回落。
6. 根据权利要求 5所述的方法, 其特征在于, 还包括:
MSC/VLR接收来自 GMSC的第二寻呼;
所述 MSC/VLR向所述 MME发送所述第二寻呼, 所述第二寻呼不 携带紧急指示和 /或优先级标识;
所述 MME从所述第二寻呼中没有获取所述紧急指示和 /或优先级标 识, 则向所述 UE 当前注册的跟踪区列表中的 eNodeB发送所述第二寻 呼, 所述第二寻呼不携带所述紧急指示和 /或优先级标识, 其中, 所述 eNodeB已经被所述 MME通知了负荷过大;
所述 eNodeB 从所述寻呼中没有获取所述紧急指示和 /或优先级标 识, 则不保存指示有具有优先级的业务的信息, 并向所述 UE发送所述 寻呼;
所述 UE向所述 eNodeB发送无线连接建立请求,所述 eNodeB根据 没有保存指示有具有优先级的业务的信息确定所述 UE没有具有优先级 的业务, 则拒绝所述无线连接建立请求, 以使所述第二寻呼建立失败。
7. 根据权利要求 1至 6任一项所述的方法, 其特征在于, 所述电路域回落 过程是具有优先级的用户对所述 UE的具有优先级的业务的呼叫。
8. —种用于演进的分组系统的 MSC/VLR, 其特征在于, 包括:
接收模块, 用于接收初始地址消息;
发送模块, 用于向 MME发送所述寻呼, 所述寻呼携带紧急指示和 / 或优先级标识。
9. 一种用于演进的分组系统的 MME , 其特征在于, 包括:
接收模块, 用于接收来自 MSC/VLR的对 UE的寻呼;
发送模块, 用于从所述寻呼中获取紧急指示和 /或优先级标识, 则向 eNodeB发送所述寻呼。
10. —种用于演进的分组系统的 eNodeB , 其特征在于, 包括:
接收模块, 用于接收来自 MME的寻呼;
发送模块, 用于从所述寻呼中获取紧急指示和 /或优先级标识, 则优 先执行寻呼;
接受模块, 用于接受来自被寻呼 UE的无线连接建立请求。
11. 一种负荷控制的方法, 其特征在于, 包括:
当 MME过载时, MME发送过载开始消息给 eNodeB, 其中携带有 过载行为, 包括: 仅允许紧急会话和移动台终呼业务;
所述 eNodeB接收到所述 MME的所述过载开始消息之后, 仅允许 UE发起的无线资源控制连接建立原因值为预定值的流量, 其中, 所述预 定值包括: 紧急或移动台终呼接入。
12. 一种用于 EPS的 MME, 其特征在于, 包括:
判断模块, 用于判断所述 MME 自身是否处于负荷过大状态, 如果 是, 触发发送模块;
所述发送模块, 用于发送过载开始消息给 eNodeB, 其中携带有过载 行为, 包括: 仅允许紧急会话和移动台终呼业务。
13. —种用于 EPS的 eNodeB, 其特征在于, 包括: 接收模块, 用于接收来自 MME的过载开始消息;
保存模块, 用于保存所述过载开始消息中携带的过载行为, 其中, 所述过载行为包括: 仅允许紧急会话和移动台终呼业务;
处理模块, 用于 居所述保存模块中保存的所述过载行为, 处理 UE 发起的业务。
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