WO2009100664A1 - 业务挂起的方法、业务恢复的方法、系统及设备 - Google Patents

业务挂起的方法、业务恢复的方法、系统及设备 Download PDF

Info

Publication number
WO2009100664A1
WO2009100664A1 PCT/CN2009/070276 CN2009070276W WO2009100664A1 WO 2009100664 A1 WO2009100664 A1 WO 2009100664A1 CN 2009070276 W CN2009070276 W CN 2009070276W WO 2009100664 A1 WO2009100664 A1 WO 2009100664A1
Authority
WO
WIPO (PCT)
Prior art keywords
service
management entity
mobility management
user equipment
request message
Prior art date
Application number
PCT/CN2009/070276
Other languages
English (en)
French (fr)
Inventor
Yijun Yu
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009100664A1 publication Critical patent/WO2009100664A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/30Connection release

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for service suspension, a method for service recovery, a system, and a device.
  • General Packet Radio Service / Universal Mobile Telecommunications System (GPRS / UMTS, General Packet Radio Service / Universal Mobile Telecommunications System) is a third generation partnership total Ge 1 J (3 GPP, The 3rd Generation Partnership Project) organization defined by a mobile communication
  • the network includes a radio access network (RAN) and a core network (Core Network, CN).
  • the CN is logically divided into a Circuit Switched Domain (CS) and a Packet Switched Domain (PS).
  • CS Circuit Switched Domain
  • PS Packet Switched Domain
  • the CS domain mainly handles voice services
  • the PS domain mainly handles packet data services.
  • LTE Long Term Evolution
  • EPS evolved packet system
  • the PS handover process includes the handover preparation and handover execution phases, and the required time. Longer, resulting in a larger delay, thus increasing the connection duration of the CS service, resulting in a poor user experience, and when certain special services need to be performed, such as making emergency calls 110, 112, it is necessary to initiate immediately. Call, connect the CS service as quickly as possible, At this time, if there is an ongoing PS service, the PS service must first be switched to the PS domain in the GPRS/UMTS network, and the delay caused by the handover cannot meet the requirements of the timeliness of these special services.
  • the technical problem to be solved by the embodiments of the present invention is to provide a service hang method, a service recovery method, a system, and a device, so as to reduce the delay before the CS service is performed during the CS fallback process, and further avoid resource waste.
  • a method for service suspension is provided, which is applied to a communication system including at least one packet domain core network device and at least one circuit domain core network device, where the packet domain core network
  • the device is connected to the core network device of the circuit domain, and includes: when the user equipment stationed in the packet domain needs to initiate the circuit domain service, the packet domain core network device reserves the packet domain network of the user equipment according to the received indication. Resources: when the user equipment is currently performing services, buffering downlink service data sent to the user equipment and/or terminating sending uplink data, and converting to a circuit domain communication network for circuit domain services.
  • a method for service recovery for use in a communication system including at least one packet domain core network device and at least one circuit domain core network device, wherein the packet domain core network device interfaces with the circuit domain core network device Connected, the method includes:
  • the packet domain core network device recovers the user equipment. Packet domain business.
  • a system for returning a circuit switched domain service to a legacy network includes a user equipment, a mobility management entity, and a service gateway, where:
  • the first mobility management entity is configured to reserve a packet domain network resource of the user equipment according to the received indication when the user equipment camped in the packet domain needs to initiate the circuit domain service; and send an update bearer request message indicating the suspension ;
  • the first serving gateway is configured to receive an update bearer request message that is sent by the mobility management entity, and save the packet domain network resource of the user equipment according to the indication of the update bearer request message that is suspended. ;
  • the user equipment is configured to stop the currently ongoing packet domain service and switch to the circuit domain network.
  • a system for service recovery is provided, the system including user equipment, a mobility management entity, a first service gateway, where:
  • the first mobility management entity is configured to: when the user equipment ends the circuit domain service in the circuit domain network, re-accesses the packet domain network, determines whether the user equipment has a packet domain service suspended, and if so, restores the location Decoding a packet domain service resource of the user equipment, and sending a message indicating the recovery to the first serving gateway;
  • the first serving gateway is configured to receive the message indicating the recovery sent by the first mobility management entity, and restore the packet domain network resource of the user equipment according to the indication of the message indicating the recovery.
  • a user equipment where the user equipment includes:
  • a service suspension requesting unit configured to send a service suspension request to the mobility management entity to reserve the packet domain network resource of the user equipment, and cache the downlink data of the packet domain service when preparing the circuit switched domain service;
  • the first access unit is configured to stop the currently ongoing packet domain service and switch to the circuit domain network.
  • a mobility management entity includes: a first resource retention unit, configured to reserve, according to the received indication, when a user equipment camped in a packet domain needs to initiate a circuit domain service a packet domain network resource of the user equipment;
  • a first update bearer requesting unit configured to send, to the serving gateway, an update bearer request message indicating suspension, requesting to suspend a packet switched domain service that is performed by the user equipment;
  • the first receiving unit is configured to receive an update bearer response returned by the serving gateway.
  • a mobility management entity including:
  • a second tracking area update request processing unit configured to receive a tracking area update request message sent by the user equipment
  • a third context unit configured to send a context request message to the old mobility management entity, receive a context response message sent by the old mobility management entity, and acquire, by the user equipment, the suspended packet recorded in the old mobility management entity
  • a third service recovery unit configured to send a request for restoring a service to the serving gateway, to recover the suspended packet switched domain service
  • a second location update unit configured to initiate a location update process with the home subscriber server, acquire subscription data of the user equipment, and register with the home subscriber server;
  • a second downlink tunnel information processing unit configured to send a tracking area update acceptance to the user equipment
  • the update bearer request message of the information is sent to the service gateway.
  • an evolved base station where the evolved base station includes:
  • a second service suspending command unit configured to receive a service suspend command sent by the mobility management entity, and a second forwarding data unit, configured to forward the buffered data in the user equipment bearer to the serving gateway, so that the service gateway caches the Data.
  • a service gateway in another aspect, includes:
  • a third receiving unit configured to receive an update bearer request suspension processing unit sent by the mobility management entity, configured to clear the downlink tunnel corresponding to the user equipment according to the indication of the updated update bearer request message Information, close the valve, record the pending indication.
  • a service gateway in another aspect, includes:
  • a third change processing unit configured to receive a setup bearer request sent by the mobility management entity, send an update bearer request message for recovering the service to the packet data network gateway, and receive an update bearer response message sent by the packet data network gateway;
  • a second downlink tunnel processing unit configured to send a setup bearer response message to the mobility management entity, receive an update bearer request message that is sent by the mobility management entity and carry the downlink tunnel information, and obtain and update the downlink tunnel information. , send buffered downstream packets.
  • a packet data network gateway configured to include: an operation unit, configured to receive an update bearer request sent by a serving gateway; and operate the valve according to the indication of the update bearer request;
  • a second process initiating unit configured to initiate a policy and charging control rule interaction process to the policy and charging rule function
  • an update bearer response unit configured to send an update bearer response to the serving gateway.
  • the UE since the UE only needs to suspend the PS service first, the UE can perform the CS service without first switching the PS service to the PS domain in the GPRS/UMTS network, and the like. Simplified CS after recovering the suspended PS service after completing the CS service The processing flow of the CS service in the fallback avoids the delay caused by the handover process, improves the efficiency, and can meet the demand of the special service for time.
  • FIG. 1 is a schematic diagram of a network structure of an EPS network and a CS domain core network when performing a CS fallback process
  • FIG. 2 is a signaling interaction diagram of a method for suspending a service according to an embodiment of the present invention
  • FIG. 4 is a signaling interaction diagram of a method for suspending a service according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a method for suspending a service according to an embodiment of the present invention
  • Example 4 is a signaling interaction diagram.
  • FIG. 6 is a signaling interaction diagram of a method for suspending a service according to an embodiment of the present invention
  • FIG. 6 is a signaling interaction diagram of a method for suspending a service according to an embodiment of the present invention.
  • FIG. 8 is a signaling interaction diagram of Embodiment 7 of a method for suspending a service according to an embodiment of the present invention.
  • the embodiment of the present invention provides a method for suspending a service, a method, a system, and a device for recovering a service. Suspend the PS service before the CS service, which can reduce the time before the CS service is performed during the CS fallback processing. Delay, avoiding waste of resources.
  • FIG. 1 is a schematic diagram of the network architecture of the EPS network and the CS domain core network when the CS service returns to the traditional network (CS fallback) process.
  • the access network can A Base Station Controller (BSC)/Radio Network Controller (RNC) 102 is connected to the CS core network; when the UE is covered by the EPS network, it can be connected through an evolved base station (eNodeB) 105 in the EPS network.
  • BSC Base Station Controller
  • RNC Radio Network Controller
  • eNodeB evolved base station
  • MME Mobility Management Entity
  • the Mobility Management Entity (MME) 104 in the EPS network is connected to the Mobile Switch Center (MSC) 103 of the traditional CS core network, and the Serving Gateway (S-GW) 106 and the MME 104.
  • MSC Mobile Switch Center
  • S-GW Serving Gateway
  • the eNodeB 105 and the Packet Data Network Gateway (P-GW) 107 are connected.
  • the mobile switching center 103 shown in FIG. 1 may include a visitor location register (VLR) function.
  • VLR visitor location register
  • MO MO Originating
  • the UE 101 is a call originator and is ready to initiate a MO Originating (MO) service, for example, when a call for initiating a voice service is initiated, the UE needs to first transfer to the traditional GPRS/UMTS network, and select a second/third generation. (2G/3G, Second Generation/Third Generation) The cell access of the mobile communication network, and then the MO service.
  • MO MO Originating
  • the MSC 103 When the UE 101 is a receiving caller, the MSC 103 receives a terminal (MT, Mobile Terminated) service, for example, when receiving a call for a voice service, the MSC 103 sends a paging message to the MME 104, and the MME 103 pages the UE 101 through the EPS network. After receiving the paging message, the UE 101 needs to go to the traditional GPRS/UMTS network, select a 2G/3G cell to access, and then complete the subsequent processing of the MT service. The processing method may be called CS fallback. Approach.
  • MT Mobile Terminated
  • the MO service and the MT service are two aspects of a CS service. For the originating caller of the CS service, it performs MO processing; for the receiving caller of the CS service, it performs MT processing.
  • the UE 101 may perform the PS service on the EPS network when the CS service is initiated or received.
  • the EPS needs to be first The PS service in the network is switched to the PS domain of the 2G/3G network, and then the CS service is carried out.
  • the CS service in the present invention is a general term for the CS service that the UE can perform in the GPRS/UMTS network.
  • the traditional CS voice service is a typical example of the CS service, and other such as the Short Message Service (SMS).
  • SMS Short Message Service
  • the location service (LCS, Location Service) and the unstructured Supplementary Service Data (USSD) are all CS services, which are not limited in the present invention.
  • the UE may perform the MO service for the originating caller; or may perform the MT service for the receiving caller; when performing the MO service, the method for suspending the service provided by the embodiment of the present invention is as follows: Said:
  • the EPS network When the UE is ready to initiate the CS service, the EPS network is required to reserve the bearer of the current UE in the EPS network. After the UE sends the service suspension request, it can go to the 2G/3G network and select a suitable cell to carry out the CS service. When the UE receives the response sent by the network side, it can go to the 2G/3G network to carry out the CS. The network may also reject the pending request. At this time, the UE needs to wait until the PS service is switched to the destination side before starting the CS service. At this time, the method for suspending the service provided by the embodiment of the present invention is The signaling interaction diagram of the first example is shown in Figure 2:
  • Step 201 When the UE prepares to initiate the CS service, the UE sends a service suspension request message to the MME of the EPS network.
  • the service suspension request message may further carry a CS service type that the UE is prepared to perform, such as a normal voice call, an emergency call, etc., for the EPS to perform subsequent processing decisions.
  • a CS service type that the UE is prepared to perform, such as a normal voice call, an emergency call, etc.
  • the UE has two states: the idle state and the active state.
  • the UE can perform the service only when the UE is in the active state. After the service is terminated, the UE can go to the idle state in order to save the air interface resources and the overhead on the UE. Therefore, when the user needs to perform the service, if the UE is in the idle state, the UE needs to go from the idle state to the active state. At this time, the UE can establish a signaling connection to complete the state change by sending a service request message to the MME.
  • the service suspension request message may be implemented by using the service request message, that is, the service request message carries an indication related to the service suspension;
  • the side sends a service request message, and after the signaling connection is established, the UE sends a service suspension request message to the MME. If the current UE is in an active state, the UE may directly send the service suspension request message to the MME.
  • the service suspension request message may be a single message or an existing message carrying a service suspension indication.
  • the UE can immediately select a suitable 2G/3G cell, access the 2G/3G network, and perform the CS service, for example, the current UE is ready to make an emergency call; or wait for the network side to respond to the request. Then, select a suitable 2G/3G cell, access the 2G/3G network, and carry out the CS service. For example, the current UE is ready to perform a normal call, which can tolerate a little delay.
  • the subsequent processing flow of the UE on the 2G/3G network is an existing CS service flow, which is not mentioned here.
  • the PS service may be suspended according to the capability of the 2G/3G mobile network in which the UE is to perform the CS service.
  • the more common situation is when the destination 2G/3G mobile network can support both CS and PS services, and switch PS services to simultaneously perform PS services and CS services.
  • the destination 2G/3G mobile network cannot simultaneously support CS and PS services, Suspending the PS service, that is, entering the process; and/or determining whether the PS service is switched or the PS service is suspended by the operator policy.
  • the operator policy decides to suspend the PS service, the process is entered, and the PS service is suspended. .
  • Step 202 After receiving the suspension request message, the MME sends an update bearer request message to the S-GW. After receiving the service suspension message, the MME may record the service suspension indication in the context of the UE, and initiate resource reservation processing.
  • the update bearer request message may carry a "service hang" indication or a shutdown (Gate) indication, instructing the S-GW to perform a suspending process, for example, clearing the downlink tunnel information of the bearer corresponding to the UE, and performing the UE Cache data when downlinking.
  • the message may also carry downlink tunnel information such as a Tunnel Endpoint Identifier (TEID) and an Internet Protocol (IP) address, and the S-GW directly updates the downlink tunnel information.
  • TEID Tunnel Endpoint Identifier
  • IP Internet Protocol
  • the uplink PS service When the uplink PS service is stopped, the uplink service is stopped, and when the downlink PS service is cached, the data can be regarded as an operation of the PS service.
  • Step 203 After receiving the message, the S-GW clears the downlink tunnel information of the bearer corresponding to the UE according to the “service suspension” indication carried in the update bearer request message or the closing of the valve indication or the downlink tunnel information of the specific value.
  • the "business suspension” indication is recorded in the context of the UE's bearer or UE.
  • the S-GW may indicate or close the valve indication according to the recorded "service suspension" indication.
  • the downlink data packet is buffered instead of sending a paging request to the MME.
  • Step 204 The S-GW initiates a policy and charging control (PCC, Policy Charging Control) rule interaction process to the Policy and Charging Rules Function (PCRF), and the S-GW will receive the service from the MME.
  • PCC Policy Charging Control
  • PCRF Policy and Charging Rules Function
  • the "instruction or close valve indication" is sent to the PCRF, and according to the indication, the PCRF performs a shutdown valve process and sends a message to the S-GW to close the valve indication, and the S-GW closes the loaded valve according to the indication of the PCRF.
  • This step is performed when the S-GW has a Policy Charging Enforcement Function (PCEF).
  • PCEF Policy Charging Enforcement Function
  • Step 205 The S-GW sends an update bearer request message to the P-GW, where the message carries a “service suspension” indication or a shutdown valve indication.
  • the P-GW After receiving the message, the P-GW records the "service suspension" indication information in the context of the bearer of the UE or the UE.
  • Step 206 The P-GW notifies the PCRF of the "service suspension” indication or the closing valve indication received by the S-GW, and the PCRF performs the shutdown valve processing according to the instruction, and sends a shutdown valve to the P-GW.
  • Step 207 The P-GW sends an update bearer response message to the S-GW.
  • Step 208 The S-GW sends an update bearer response message to the MME.
  • the forwarding tunnel information provided to the eNodeB may be carried in the message, thereby forwarding the data buffered in the eNodeB to the S- Cache in the GW.
  • the forwarding tunnel information may be separately allocated by the S-GW, or may be used to provide downlink tunnel information provided by the existing S-GW to the P-GW.
  • Step 209 The MME sends a service suspension command to the eNodeB, instructing the eNodeB to forward the cached data.
  • the service suspension command may carry the forwarding tunnel letter provided by S-G W.
  • Step 209 and subsequent steps are not in sequential relationship with steps 202 to 208, and may be executed sequentially or simultaneously.
  • the preferred solution is Implemented successively.
  • Step 210 The MME sends a service suspension response message to the UE.
  • This step is an optional step.
  • the MME may also send a service suspension response message to the UE.
  • the UE may immediately select a suitable 2G/3G cell after accessing the service suspension request message, access the 2G/3G network, and perform CS service; or wait for the network.
  • the side selects a suitable 2G/3G cell and accesses the 2G/3G network to carry out the CS service.
  • the UE may transfer to the 2G/3G cell to perform the CS service.
  • the MME may determine, according to the type of the CS service received in step 201, whether a service suspension response message needs to be sent to the UE. For example, if the current UE needs to perform an emergency call, the UE may immediately go to the 2G/3G to perform the CS service after performing the step 201. At this time, the MME does not need to send a service suspension response message to the UE; The MME may send a service suspension response message to the UE, and the UE may send the response message to the 2G/3G to perform the CS service.
  • the MME may also determine whether to perform the hang according to the network status and/or the operator policy. In the operation, if the suspend operation is not required, the MME directly performs step 210 after receiving the message of step 201, and does not perform other steps. In the message of step 210, the UE is not in the suspend operation, and after receiving the service suspension response message containing the judgment result, the UE does not immediately go to the 2G/3G to perform the CS service, but waits for further indication of the network. .
  • Step 211 After receiving the service suspension command, the eNodeB forwards the data to the S-GW.
  • the eNodeB After receiving the service suspension command, the eNodeB forwards the data buffered in the UE bearer to the S-GW according to the forwarding tunnel information provided in the message.
  • Step 212 The S-GW caches and forwards data.
  • Steps 211 and 212 are optional. For example, if there is no bearer context of the UE on the current eNodeB, steps 211 and 212 may not be performed.
  • Step 213 After completing the data forwarding, the eNodeB sends an S1 connection release request message to the MME.
  • Step 214 After receiving the connection release request message of the eNodeB, the MME sends an S1 connection release command to the eNodeB.
  • Step 215 If the radio resource control (RRC) connection corresponding to the UE still exists, the RRC connection release processing procedure is initiated.
  • RRC radio resource control
  • the EPS network side may detect that the UE has left the EPS network, and directly initiates an RRC connection release processing procedure, and step 215 may be performed in advance.
  • step 211 to step 215 may change. Since the UE goes to 2G/3G and the air port does not detect the presence of the UE, step 214 may also be initiated by the air interface. At this time, the timing of the message cannot be guaranteed. .
  • the S1 connection release request message to the MME may also be initiated while releasing the RRC connection.
  • Step 216 The eNodeB sends an S1 connection release complete message to the MME.
  • the foregoing is a description of the first embodiment of the method for suspending the service provided by the embodiment of the present invention when the MO service is performed, and the first embodiment of the method for suspending the service provided by the embodiment of the present invention, when the UE performs the MO service,
  • the PS service needs to be suspended first, so that the CS service can be performed without first switching the PS service to the PS domain in the GPRS/UMTS network, and then the UE resumes the suspended PS service after completing the CS service, thereby simplifying the CS.
  • the processing flow of the CS service in the fallback avoids the handover process The resulting delay increases efficiency and meets the time requirements of a particular business.
  • the UE since the existing 2G system cannot simultaneously support the CS and PS services, that is, the UE must suspend the PS service while performing the CS service. Therefore, even if the PS service in the EPS network is switched to the PS domain of the 2G system, the PS service cannot be used while the CS service is being performed. In this case, the switching of the PS service has no meaning, resulting in waste of resources. .
  • the method for suspending the service provided by the embodiment of the present invention does not need to switch the PS service to the PS domain in the GPRS/UMTS network, thereby avoiding waste of resources and possible resources due to the fact that the 2G network cannot simultaneously support CS and PS services. failure.
  • the 2G/3G mobile network can simultaneously support the CS and PS services, and/or when the PS switch is desired, PS switching is performed in accordance with the prior art.
  • the evolved packet network may simultaneously start a resource reservation timer when performing the service suspension processing, when the timer After the timeout, if the UE still does not return to the evolved packet network to perform the service recovery process, the evolved packet network performs a resource release procedure to complete the release of the reserved resource.
  • the core network device of the evolved packet network may start the resource reservation timer when performing the suspending operation, that is, the MME receives the suspend operation indication in step 202, the S-GW in step 202, and the P-GW in step 205, when determining The timer is started when a suspend operation is employed.
  • An improvement is that only the MME starts the resource reservation timer in step 201.
  • the timer duration may be brought to the UE in step 210, and the UE also starts the resource reservation timer after receiving the timer.
  • the first embodiment of the method for suspending the service provided by the embodiment of the present invention is as follows:
  • the EPS network retains the current UE's bearer in the EPS network. If the PS service is in progress, the EPS network buffers the downlink data, and the UE stops transmitting the uplink data. After receiving the CS termination service indication or sending the service suspension request, the UE can go to the 2G/3G network and select a suitable cell to carry out the CS service.
  • the signaling interaction diagram of the second embodiment of the method for suspending the service provided by the embodiment of the present invention is as shown in FIG. 3 . Shown as follows:
  • Step 301 After receiving the terminal call service request, the MSC sends a paging message to the MME.
  • Step 302 The MME sends a paging message to the eNodeB.
  • Step 303 The eNodeB sends a paging message to the UE.
  • the paging message in step 302 and step 303 may include a CS service indication, thereby notifying
  • the UE currently has an MT CS service.
  • the CS service indication can be done as a paging cause value or as a separate indication.
  • the MME does not need to perform the following step 304.
  • the paging message including the CS service indication may be sent regardless of whether the current UE is in an active state or an idle state.
  • the MME After the MME receives the paging message of the MSC, if the current UE is in the idle state, the paging message in step 302 and step 303 can also directly adopt the EPS paging message in the prior art, that is, the CS service indication does not need to be included. .
  • the UE After receiving the EPS message, the UE may send a service request message to the MME to turn the UE into an active state, and then the MME performs the following step 304 to send the terminal call service indication to the UE.
  • the MME may perform the step 304 and the 303, and directly perform the following step 304 to send the terminal call service indication to the UE.
  • Step 304 The MME sends a terminal call service indication message to the UE.
  • Step 305 The UE sends a service suspension request message to the MME, requesting the EPS network to reserve the current resource of the UE in the EPS network.
  • the UE may immediately stop sending the uplink data packet of the currently ongoing PS service, and send a service suspension request message to the MME. After waiting for the response message of the MME to arrive or immediately select a suitable 2G/3G cell, camp on the 2G/3G network to carry out the CS service.
  • the subsequent processing flow of the UE on the 2G/3G network is an existing CS service flow, and details are not described herein again.
  • the PS handover may be performed according to the prior art, and the paging message or the terminal call that is received by the UE and includes the CS service indication.
  • the service indication message may further carry an indication of whether a suspending process is required, and when the indication of the suspending process is included, the UE may immediately stop the currently ongoing PS.
  • the uplink data packet of the service, the MME sends a service suspension request message; if the indication of the suspension processing is not included, the UE may continue the ongoing PS service to wait for further indication of the network.
  • the PS service can be suspended according to the capability of the 2G/3G mobile network in which the UE will perform the CS service.
  • the more common situation is when the destination 2G/3G mobile network can support both CS and PS services, and switch PS services to simultaneously perform PS services and CS services.
  • the destination 2G/3G mobile network cannot simultaneously support CS and PS services, Suspend the PS service and continue the process; and/or determine whether the PS service is switched or the PS service is suspended by the operator policy.
  • the operator policy decides to suspend the PS service, the process continues, and the PS service is suspended. .
  • the sending of the service suspension request message to the MME is an optional step.
  • the MME may know that the UE needs to perform the MT service, and the MME may directly enter the subsequent process without the indication of the UE.
  • the UE sends a service suspension request message, and the EPS network is required to reserve the resources of the UE currently in the EPS network.
  • the MME determines that the suspending process is not required, the PS handover can be performed according to the prior art, and no subsequent steps need to be performed at this time. If the MME receives the service suspension request message sent by the UE in step 305, the MME may directly send a step 314 to the UE, where the message indicates that the UE network side does not perform the suspending operation, and the UE receives the service hang containing the judgment result. After responding to the message, it does not immediately go to 2G/3G to perform CS service, but waits for further instructions from the network.
  • the service suspension request message may also be other indication information sent by the UE, and the EPS network performs subsequent processing according to the indication of the UE.
  • Step 306 The MME sends an update bearer request message to the S-GW.
  • the MME may record the traffic suspension indication in the context of the UE and initiate resource reservation processing.
  • the update bearer request message carries a "service hang" indication or a shutdown (Gate) indication, instructing the S-GW to perform a suspend operation, for example, clearing the downlink tunnel information of the bearer corresponding to the UE, and performing downlink on the UE. Cache data when business.
  • the message may also carry downlink tunnel information such as a TEID and an IP address of a specific value, and the S-GW directly updates according to the downlink tunnel information.
  • Step 307 After receiving the message, the S-GW clears the downlink tunnel information of the bearer corresponding to the UE according to the “service suspension” indication carried in the update bearer request message or the closing of the valve indication or the downlink tunnel information of the specific value. Recording the "business hang" in the context of the UE's bearer or UE Show.
  • the S-GW may indicate or close the valve indication according to the recorded "service suspension" indication.
  • the downlink data packet is buffered instead of sending a paging request to the MME.
  • Step 308 S-GW to policy and charging rule function (PCRF, Policy Charging Rules
  • PCC policy and charging control
  • Step 309 The S-GW sends an update bearer request message to the P-GW, where the message carries a “service suspension” indication or a valve indication is closed.
  • the P-GW After receiving the message, the P-GW records the "service suspension" indication information in the context of the bearer of the UE or the UE.
  • Step 310 The P-GW notifies the PCRF of the "service suspension” indication or the closing valve indication received from the S-GW, and the PCRF performs a shutdown valve processing according to the instruction, and sends a message to the P-GW to close the valve indication.
  • the P-GW closes the loaded valve according to the indication of the PCRF.
  • Step 311 The P-GW sends an update bearer response message to the S-GW.
  • Step 312 The S-GW sends an update bearer response message to the MME.
  • the forwarding tunnel information provided to the eNodeB may be carried in the message, thereby forwarding the data buffered in the eNodeB to the S- Cache in the GW.
  • the forwarding tunnel information may be separately allocated by the S-GW, or may be used to provide downlink tunnel information provided by the existing S-GW to the P-GW.
  • Step 313 The MME sends a service suspension command to the eNodeB, instructing the eNodeB to forward the cached data.
  • the service suspension command may carry the forwarding tunnel letter provided by S-G W.
  • the MME may perform step 313, step 313 and
  • the subsequent steps and the steps 306 to 312 have no sequential relationship, and may be executed sequentially or simultaneously.
  • the preferred solution is performed sequentially.
  • Step 314 The MME sends a service suspension response message to the UE.
  • This step is an optional step.
  • the MME may also send a service suspension response message to the UE. After receiving the message, the UE may go to the 2G/3G cell to perform the CS service.
  • Step 315 After receiving the service suspension command, the eNodeB forwards the data to the S-GW.
  • the eNodeB After receiving the service suspension command, the eNodeB, according to the forwarding tunnel information provided in the message,
  • the data buffered in the UE bearer is forwarded to the S-GW.
  • Step 316 The S-GW caches forwarding data.
  • Steps 313, 315, and 316 are optional. For example, if there is no bearer context of the UE on the current eNodeB, steps 313, 315, and 316 may not be performed.
  • Step 317 After completing the data forwarding, the eNodeB sends an S1 connection release request message to the MME.
  • Step 318 After receiving the connection release request message of the eNodeB, the MME sends an S1 connection release command to the eNodeB.
  • Step 319 If the RRC connection corresponding to the UE still exists at this time, initiate an RRC connection release processing procedure.
  • Step 320 The eNodeB sends an S1 connection release complete message to the MME.
  • Steps 313 to 317 are optional steps, and steps 318 to 320 are determined by the MME to initiate. If the MME receives the paging message in step 301, the current UE is in the idle state. At this time, the MME uses the paging message of step 302 to indicate to the UE that the terminating service arrives, and then the UE does not return to the network to the service hang request message of step 305. Instead, there is no S1 connection between the eNodeB and the MME. At this time, the flow of steps 313 to 320 does not need to be performed.
  • the evolved packet network may simultaneously start a resource reservation timer when performing the service suspension processing, when the timer After the timeout, if the UE still does not return to the evolved packet network to perform the service recovery process, the evolved packet network performs a resource release procedure to complete the release of the reserved resource.
  • the core network device of the evolved packet network can initiate the resource reservation when performing the suspend operation.
  • the timer that is, the MME before step 306, and the S-GW, after receiving the suspend operation indication in step 309 and the P-GW in step 309, initiates the timer when it is decided to adopt the suspend operation.
  • only the MME starts the resource reservation timer before transmitting step 306.
  • the timer duration may also be brought to the UE in step 314, and the UE also starts the resource reservation timer after receiving the timer.
  • the foregoing is a description of the second embodiment of the method for suspending the service provided by the embodiment of the present invention when performing the MT service
  • the second embodiment of the method for suspending the service provided by the embodiment of the present invention when the UE performs the MT service,
  • the PS service needs to be suspended first, so that the CS service can be performed without first switching the PS service to the PS domain in the GPRS/UMTS network, and then the UE resumes the suspended PS service after completing the CS service, thereby simplifying the CS.
  • the processing flow of the CS service in the fallback avoids the delay caused by the handover process, improves the efficiency, and can meet the demand of the special service for time.
  • the 2G/3G mobile network can simultaneously support the CS and PS services, and/or when the PS switch is desired, PS switching is performed in accordance with the prior art.
  • the UE camped on the EPS network suspends the PS service in the EPS network and needs to go to the 2G/3G network to complete the related CS service
  • the UE needs to immediately select an appropriate LTE cell to reconnect.
  • the UE Into the EPS network, and restore the suspended PS service
  • the UE starts the resource reservation timer during the suspend operation, when the UE accesses the EPS network after completing the CS service, if the timer has expired, it means that the network side has released the previous suspend operation.
  • the reserved resources at this time, the UE does not need to perform recovery processing, but locally releases the previously reserved resources.
  • the UE performs the recovery process described below.
  • the UE may have left the tracking area (TA, Tracking Area) of the original service, that is, the TA list recorded in the UE.
  • the TA to which the LTE cell currently selected by the UE belongs is not included.
  • the UE needs to initiate the tracking area update process to complete the registration to the EPS network.
  • the UE goes to the EPS network, it is still in the tracking area of the original service, that is, the TA list recorded in the UE includes the TA to which the LTE cell currently selected by the UE belongs, and the UE can immediately perform recovery and is suspended. Processing of PS business.
  • the third embodiment of the method for suspending the service provided by the embodiment of the present invention that is, the resumed PS service processing when the UE is still in the tracking area of the original service
  • the signaling interaction diagram is as shown in FIG. 4: Step 401 After the UE is re-arranged to the LTE cell, after detecting the need to resume the suspended PS service, the UE sends a service request message to the MME.
  • the service request message may carry an indication of "service recovery”.
  • Step 402 After receiving the service request message, the MME indicates, according to the information of the “service recovery” carried in the received service request message, or the “service suspension” information indication of the UE recorded when the suspension operation is performed before, The recovery service processing is performed, and an update bearer request message is sent to the S-GW.
  • the update bearer request message carries a "service recovery" indication or an open valve indication.
  • the S-GW After receiving the update bearer request message, the S-GW recovers the suspended resource according to the "service recovery" indication carried or the opening of the valve indication. In this process, if the S-GW receives the new downlink data packet of the UE, it does not initiate a paging request to the MME.
  • Step 403 The S-GW initiates a PCC rule interaction process to the PCRF, and notifies the PCRF of the "service recovery" indication or the opening valve indication received by the S-GW from the MME, and the PCRF performs the opening valve processing according to the instruction, and sends the valve to the S-
  • the GW sends a message to open the valve indication, and the S-GW opens the loaded valve according to the indication of the PCRF.
  • This step is performed when the S-GW has the PCEF function.
  • Step 404 The S-GW sends an update bearer request message to the P-GW.
  • the update bearer request message carries a "service recovery" indication or an open valve indication.
  • Step 405 The P-GW notifies the PCRF of the "service recovery” indication or the opening of the valve indication received by the S-GW, and the PCRF performs the opening valve processing according to the instruction, and sends a message to the P-GW to open the valve indication, P - GW opens the loaded valve according to the instructions of the PCRF.
  • Step 406 The P-GW sends an update bearer response message to the S-GW.
  • Step 407 The S-GW sends an update bearer response message to the MME.
  • Step 408 The MME sends an initialization context request message to the eNodeB to establish a radio bearer. Air interface resources.
  • the MME may perform step 408.
  • the step 408 and the subsequent steps are not in sequence with the steps 402 to 407, and may be performed in succession or concurrently.
  • Step 409 Establish an air interface radio bearer between the eNodeB and the UE.
  • the UE may send the uplink data packet.
  • Step 410 The eNodeB sends an initialization context response message to the MME.
  • the initialization context response message carries the downlink tunnel information of the relevant bearer allocated by the e-NodeB for use by the S-GW, including the TEID, the IP address, and the like.
  • Step 411 The MME sends an update bearer request message to the S-GW.
  • the update bearer request message carries the bearer downlink tunnel information allocated by the eNodeB.
  • Step 412 The S-GW updates the downlink tunnel information of the UE according to the information carried in the request message. And sending an update bearer response message to the MME.
  • the S-GW After the S-GW updates the downlink tunnel information, it can send the buffered downlink data packet.
  • step 402 ⁇ step 407 and step 408 ⁇ step 412 are independent of each other, and have no sequential relationship, and can be executed separately. That is, the MME may perform step 408 while performing step 402.
  • the resource reservation timer in the evolved packet network device When the resource reservation timer in the evolved packet network device does not time out, the resource reservation timer is stopped after receiving the relevant recovery indication. That is, when the MME receives the step 401, the S-GW receives the step 402, and the P-GW receives the step 404, if the started resource reservation timer does not expire, the timer is stopped.
  • the downlink bearer information exists in the corresponding bearer in the S-GW, the downlink data packet can be sent. Therefore, the air interface radio bearer can be established first, and the eNodeB sends an initialization context response message to the MME, and provides the downlink tunnel information to the MME, and then sends the downlink tunnel information to the MME. - GW initiates an update bearer process. At this time, the method for suspending the service suspension provided by the embodiment of the present invention resumes the PS industry.
  • the interaction diagram is as shown in FIG. 5:
  • Step 501 The UE re-arranges to the LTE cell, and after accessing the EPS network, detecting that it needs to be restored.
  • the suspended PS service sends a service request message to the MME.
  • the service request message may carry an indication of "service recovery”.
  • Step 502 The MME sends an initialization context request message to the eNodeB, and establishes a bearer resource.
  • Step 503 Establish an air interface radio bearer between the eNodeB and the UE.
  • the UE may send the uplink data packet.
  • Step 504 The eNodeB sends an initialization context response message to the MME.
  • the initialization context response message carries the downlink tunnel information of the relevant bearer allocated by the S-GW, including the TEID, the IP address, and the like.
  • Step 505 The MME sends a bearer update request message to the S-GW.
  • the bearer update request message includes the downlink tunnel information of the bearer provided by the eNodeB, and the MME may further perform a resume service process according to the “service suspension” information indication of the UE recorded when the suspending operation is performed before, in the bearer update request message. Carry a "business recovery” indication or open the valve indication.
  • the S-GW may update the downlink tunnel information of the bearer according to the downlink tunnel information or the "service recovery" indication or the valve indication that is carried by the S-GW, and may also send the buffered downlink data packet, and execute Subsequent resource recovery processing.
  • Step 506 The S-GW initiates a PCC rule interaction process to the PCRF, and notifies the PCRF of the “service recovery” indication or the opening valve indication received by the S-GW from the MME, and the PCRF performs the opening valve processing according to the instruction, and sends the valve to the S-
  • the GW sends a message to open the valve indication, and the S-GW opens the loaded valve according to the indication of the PCRF.
  • This step is performed when the S-GW has the PCEF function.
  • Step 507 The S-GW sends an update bearer request message to the P-GW.
  • the message carries a "business recovery" indication or an open valve indication.
  • Step 508 The P-GW notifies the PCRF of the "service recovery” indication or the opening of the valve indication received by the S-GW, and the PCRF performs the opening valve processing according to the instruction, and sends a message to the P-GW to open the valve indication, P - GW opens the loaded valve according to the instructions of the PCRF.
  • Step 509 The P-GW sends an update bearer response message to the S-GW.
  • Step 510 The S-GW sends an update bearer response message to the MME.
  • the UE may immediately send the uplink data packet, and at this time, the corresponding bearer on the S-GW or the P-GW may still be in the closed state, thereby causing the uplink.
  • the data packet is discarded by the S-GW or P-GW.
  • the S-GW or P-GW may choose to cache first.
  • the data packet, or when the S-GW or the P-GW receives the uplink data packet sends an open valve request message to the PCRF, and the PCRF instructs the PCEF to open the valve, thereby completing the uplink data packet transmission.
  • the resource reservation timer in the evolved packet network device When the resource reservation timer in the evolved packet network device does not time out, the resource reservation timer is stopped after receiving the relevant recovery indication. That is, when the MME receives the step 504, the S-GW receives the step 505, and the P-GW receives the step 507, if the started resource reservation timer does not expire, the timer is stopped.
  • the suspended resource recovery may be completed in the initiated tracking area update process; and the tracking may be selected even if the UE is still in the tracking area of the original service.
  • the zone update process completes the recovery of the suspended resources.
  • Step 601 After re-arranging to the LTE cell, the UE detects that the suspended PS service needs to be restored, and sends a tracking area update request message to the MME.
  • the message may carry an active flag to request the network to recover the current bearer.
  • the tracking area update request message may carry an information indication of "service recovery”.
  • Step 602 After receiving the tracking area update request message, the MME indicates, according to the information of the “service recovery” carried in the received service request message, or the “service suspension of the UE recorded when the suspending operation is performed before, The information indicates that the recovery service processing is performed, and the update bearer request message is sent to the S-GW, where the message carries the "service recovery” indication or the valve indication is turned on.
  • the S-GW After receiving the update bearer request message, the S-GW recovers the suspended resource according to the "service recovery" indication or the valve indication carried by the S-GW, but continues to buffer the received data packet until the downlink tunnel information is received.
  • the cached packet is sent to the eNodeB. In this process, if the S-GW receives the new downlink data packet of the UE, it does not initiate a paging request to the MME.
  • Step 603 The S-GW initiates a PCC rule interaction process to the PCRF, and notifies the PCRF of the "service recovery" indication or the opening valve indication received by the S-GW from the MME, and the PCRF performs the opening valve processing according to the instruction, and sends the valve to the S-
  • the GW sends a message to open the valve indication, and the S-GW opens the loaded valve according to the indication of the PCRF.
  • This step is performed when the S-GW may have the PCEF function.
  • Step 604 The S-GW sends an update bearer request message to the P-GW.
  • the message carries a "business recovery” indication or opens a valve indication.
  • Step 605 The P-GW notifies the PCRF of the "service recovery” indication or the opening of the valve indication received by the S-GW, and the PCRF performs the opening valve processing according to the instruction, and sends a message to the P-GW to open the valve indication, P - GW opens the loaded valve according to the instructions of the PCRF.
  • Step 606 The P-GW sends an update bearer response message to the S-GW.
  • Step 607 The S-GW sends an update bearer response message to the MME.
  • Step 608 The MME sends a tracking area update accept message to the UE.
  • the MME may perform step 608.
  • the step 608 and the subsequent steps are not in sequence with the steps 602 to 607, and may be executed sequentially or simultaneously. .
  • Step 609 The UE sends a tracking area update complete message to the MME.
  • the system may complete the establishment of the bearer corresponding air interface resource in the process of performing step 608 and step 609. At this time, when the UE detects that the corresponding air interface radio bearer has been established, the uplink data packet may be sent.
  • the tracking area update completion message received by the MME in the step 609 may carry the downlink tunnel information of the bearer provided by the eNodeB, including the TEID. , IP address, etc.
  • Step 610 After the MME receives the downlink tunnel information provided by the eNodeB, the MME sends an update bearer request message to the S-GW, where the message carries the bearer downlink tunnel information provided by the eNodeB.
  • Step 611 The S-GW updates the downlink tunnel information of the UE according to the information carried in the request message. And sending an update bearer response message to the MME.
  • the S-GW After the S-GW updates the downlink tunnel information, it can send the buffered downlink data packet.
  • steps 602 to 607 and steps 608 to 612 are independent of each other. There are successive relationships that can be performed separately. That is, the MME may perform step 608 while performing step 602.
  • the resource reservation timer in the evolved packet network device When the resource reservation timer in the evolved packet network device does not time out, the resource reservation timer is stopped after receiving the relevant recovery indication. That is, the MME receives the step 601, the S-GW receives the step 402, and when the P-GW receives the step 604, if the started resource reservation timer does not time out, the timer is stopped.
  • the MME can receive the tracking area update complete message sent by the UE, and obtain the downlink tunnel information from the MME, and then initiate an update to the S-GW. Carrying process.
  • the method for suspending the service provided by the embodiment of the present invention is the recovery of the sixth embodiment of the PS industry.
  • the command interaction diagram is as shown in FIG.
  • Step 701 After re-arranging the UE to the LTE cell, detecting that the PS service needs to be resumed, the UE sends a tracking area update request message to the MME.
  • the message may carry an active flag to request the network to recover the current bearer.
  • the tracking area update request message may carry an information indication of "service recovery”.
  • Step 702 The MME sends a tracking area update accept message to the UE.
  • Step 703 The UE sends a tracking area update complete message to the MME.
  • the system may complete the establishment of the bearer corresponding air interface resource in the process of performing step 702 and step 703.
  • the uplink data packet may be sent; in step 703, the tracking area update completion message received by the MME carries the downlink tunnel information of the bearer provided by the eNodeB, including the TEID, IP address, etc.
  • Step 704 The MME sends a bearer update request message to the S-GW.
  • the bearer update request message includes the downlink tunnel information of the bearer provided by the eNodeB, and the MME may further perform a resume service process according to the “service suspension” information indication of the UE recorded when the suspending operation is performed before, in the bearer update request message. Carry a "business recovery” indication or open the valve indication.
  • the S-GW may update the downlink tunnel information of the bearer according to the downlink tunnel information carried in the service or the service recovery, indicate or open the valve indication, and send the buffered downlink data packet, and execute Subsequent resource recovery processing.
  • Step 705 The S-GW initiates a PCC rule interaction process to the PCRF, and notifies the PCRF by the S-GW receiving the “service recovery” indication or the opening of the valve indication received by the MME, and the PCRF is instructed to perform the process of opening the valve, and The S-GW sends a message to open the valve indication, and the S-GW opens the loaded valve according to the indication of the PCRF.
  • This step is performed when the S-GW may have the PCEF function.
  • Step 706 The S-GW sends an update bearer request message to the P-GW.
  • the message carries a "business recovery” indication or opens a valve indication.
  • Step 707 The P-GW initiates a PCC rule interaction process to the PCRF, and notifies the PCRF of the “service recovery” indication or the opening of the valve indication received by the S-GW, and the PCRF performs the opening valve processing according to the instruction, and sends the valve to the P-GW.
  • a message to open the valve indication is sent, and the P-GW opens the loaded valve according to the indication of the PCRF.
  • Step 708 The P-GW sends an update bearer response message to the S-GW.
  • Step 709 The S-GW sends an update bearer response message to the MME.
  • the uplink data packet may be immediately sent, and the S-GW or the S-GW or The correspondingly carried valve on the P-GW may still be in a closed state, which may cause the uplink data packet to be discarded by the S-GW or the P-GW.
  • the PCEF may choose to cache the data packet first, or when After receiving the uplink data packet, the S-GW or the P-GW sends an open valve request message to the PCRF, and the PCRF instructs the PCEF to open the valve, thereby completing the uplink data packet transmission.
  • the resource reservation timer in the evolved packet network device When the resource reservation timer in the evolved packet network device does not time out, the resource reservation timer is stopped after receiving the relevant recovery indication. That is, when the MME receives the step 703, the S-GW receives the step 704, and the P-GW receives the step 706, if the started resource reservation timer does not expire, the timer is stopped.
  • Step 801 The UE re-arranges to the LTE cell, and after accessing the EPS network, detects that the suspended PS service needs to be restored, and sends a tracking area update request message to the MME.
  • the message may carry an active flag to request the network to recover the current bearer.
  • the tracking area update request message may carry an information indication of "service recovery”.
  • Step 802 If the change occurs, the ⁇ that receives the tracking area update request message is the new service node of the UE, that is, the new ⁇ , and the new ⁇ sends a context request message to the old , to obtain the original UE.
  • the context recorded in the file.
  • Step 803 The old ⁇ sends a context response message to the new ⁇ . If the UE is marked as "service pending" in the old ⁇ , the indication needs to be carried in the context response message.
  • Step 804 The new ⁇ sends a context confirmation message to the old ⁇ .
  • Step 805 The new MME selects an S-GW. If the S-GW is different from the S-GW that originally served the UE, the S-GW sends a bearer setup request to the new S-GW to establish a bearer of the UE.
  • the setup bearer message may carry a "service recovery” indication or a valve indication.
  • the new S-GW After receiving the update bearer request message, the new S-GW according to the "service recovery" indication or the opening of the valve indication carried by the S-GW, if the downlink data packet or the forwarded data packet is subsequently received, if the bearer does not have the downlink tunnel information, Then, the downlink data arrival notification is not sent to the ,, and the buffered data packet is sent until the downlink tunnel information is updated.
  • Step 806 The new S-GW sends an update bearer request message to the P-GW.
  • the message may carry a "service recovery" indication or a valve indication in addition to the downlink tunnel information provided by the new S-GW to the P-GW.
  • Step 807 The P-GW initiates a PCC rule interaction process to the PCRF, and notifies the PCRF of the “service recovery” indication or the opening of the valve indication received by the S-GW, and the PCRF performs the opening valve processing according to the instruction, and sends the valve to the P-GW.
  • a message to open the valve indication is sent, and the P-GW opens the loaded valve according to the indication of the PCRF.
  • Step 808 The P-GW sends an update bearer response message to the new S-GW.
  • Step 809 The new S-GW sends a bearer setup response message to the new MME.
  • the setup bearer response message carries the uplink tunnel information provided by the new S-GW. If the new S-GW detects that the UE is in a suspended state in step 805, for example, by establishing a bearer carried in the bearer message The message may be carried in the message indicating that the UE is in a suspended state, and the message may carry the forwarding tunnel information provided to the old S-GW. The forwarding tunnel information may be separately allocated by the new S-GW. The downlink tunnel information provided to the P-GW by the existing S-GW can be utilized.
  • Step 810 If the old MME indicates that the UE is suspended in step 803, and the new MME selects a new S-GW, the new MME sends a Forward Data Request message to the old MME, requesting the downlink of the UE buffered by the old S-GW. The packet is forwarded to the new S-GW. Therefore, the message may carry the forwarding tunnel information of the bearer context on the new S-GW.
  • Step 811 The old MME sends a forwarding data request message to the old S-GW, where the message carries the forwarding tunnel information of the bearer on the new S-GW.
  • the old S-GW After receiving the message, the old S-GW starts to forward the cached data to the new S-GW.
  • Step 812 The old S-GW sends a forwarding data request accept message to the old MME.
  • Step 813 The old MME sends a forward data request accept message to the new MME.
  • steps 805 to 813 may not be performed, and steps 602 to 607 in FIG. 6 are used instead.
  • Step 814 The new MME and the HSS initiate a location update process, obtain subscription data of the UE, and register a new MME with the HSS.
  • Step 815 The MME sends a tracking area update accept message to the UE.
  • Step 816 The UE sends a tracking area update complete message to the MME.
  • the system completes the establishment of the bearer corresponding air interface resource in the process of step 815 and step 816.
  • the uplink data packet may be sent.
  • the tracking area update completion message received by the MME in step 816 may carry the downlink tunnel information of the bearer provided by the eNodeB, including the TEID. , IP address, etc.
  • Step 817 After the new MME receives the downlink tunnel information provided by the eNodeB, the MME sends an update bearer request message to the new S-GW, where the message carries the bearer downlink tunnel message provided by the eNodeB, and the S-GW carries the message according to the request message. The information of the downlink tunnel information of the UE is updated. And sending an update bearer response message to the MME.
  • steps 817 to 818 may be replaced by steps 704 to 709 in FIG.
  • the MME and the S-GW are both changed, and the activated resource reservation timer does not exist in the new MME and the S-GW, but the P-GW may have a resource reservation timer that is started, so when P When the GW receives the step 806, if the started resource reservation timer does not time out, the timer is stopped.
  • the reserved resources need to be released.
  • the device When the resource reservation timer is started in the MME, the S-GW, and the P-GW, the device locally releases the reserved resources when the timer expires.
  • the so-called local release means that the device does not need to send messages to other devices to directly release related resources.
  • the resource reservation timer When only a part of the device starts the resource reservation timer, a typical case is that the resource reservation timer is started in the MME. After the timer expires, the device initiates a resource release process, such as a bearer release process. The associated network element releases the reserved resource.
  • a resource release process such as a bearer release process. The associated network element releases the reserved resource.
  • the bearer release process is prior art and will not be described here.
  • the foregoing is a description of an embodiment of a method for suspending a service according to an embodiment of the present invention.
  • the UE only needs to suspend the PS service first.
  • the CS service can be performed without first switching the PS service to the PS domain in the GPRS/UMTS network, and then restoring the suspended PS service after the UE completes the CS service, thereby simplifying the processing flow of the CS service in the CS fallback. It avoids the delay caused by the handover process, improves the efficiency, and can meet the demand of special services for time.
  • the 2G/3G mobile network can simultaneously support the CS and PS services, and/or when the PS switch is desired, PS switching is performed in accordance with the prior art.
  • a method for service suspension is applied to a communication system including at least one packet domain core network device and at least one circuit domain core network device, wherein the packet domain core network device and the circuit domain core network device are connected through an interface, wherein , including:
  • the packet domain core network device reserves the packet domain network resource of the user equipment according to the received indication; when the user equipment is currently performing services, And buffering downlink service data sent to the user equipment and/or terminating sending uplink data, and converting to a circuit domain communication network for circuit domain service; or converting to circuit domain communication when the user equipment does not currently perform services
  • the network performs circuit domain services.
  • a method for service recovery applied to a communication system including at least one packet domain core network device and at least one circuit domain core network device, wherein the packet domain core network device and the circuit domain core network device are connected through an interface, wherein , the method includes:
  • the packet domain core network device recovers the user equipment. Packet domain business.
  • the above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the system embodiment of the service suspension provided by the embodiment of the present invention includes: a user equipment, a first mobility management entity, and a first service gateway.
  • the first mobility management entity is configured to: when the user equipment stationed in the packet domain needs to initiate the circuit domain service, retain the packet domain network resource of the user equipment according to the received indication; and send an update bearer request message indicating the suspension;
  • a first serving gateway configured to receive an update bearer request message sent by the mobility management entity, indicating that the packet domain network resource of the user equipment is reserved according to the indication of the updated update bearer request message that is suspended;
  • the system embodiment of the service recovery includes: a user equipment, a first mobility management entity, and a first service gateway, where: The first mobility management entity is configured to: when the user equipment ends the circuit domain service in the circuit domain network, re-accesses the packet domain network, determines whether the user equipment has a packet domain service suspended, and if so, restores the location Decoding a packet domain service resource of the user equipment, and sending a message indicating the recovery to the first serving gateway;
  • the first serving gateway is configured to receive the message indicating the recovery sent by the first mobility management entity, and restore the packet domain network resource of the user equipment according to the indication of the message indicating the recovery.
  • the system embodiment of the service hang is provided, and the structure and function of each device are basically the same as the embodiment 1 and the embodiment of the service management embodiment of the user equipment embodiment provided by the embodiment of the present invention. For a detailed description, refer to the following.
  • a service suspension requesting unit configured to send a service suspension request to the mobility management entity to reserve the packet domain network resource of the user equipment, and cache the downlink data of the packet domain service when preparing the circuit switched domain service;
  • the first access unit is configured to stop the currently ongoing packet domain service and switch to the circuit domain network.
  • a second access unit configured to select a long term evolution plan cell and re-access the packet system network after the circuit switched domain service ends;
  • a first sending unit configured to send a message to the mobility management entity to recover a packet switched domain service
  • the first bearer establishing unit is configured to establish a radio bearer.
  • the business suspension request unit includes:
  • a first service suspension requesting unit configured to send a service suspension request to the mobility management entity when preparing to initiate the circuit switched domain service
  • a second service suspension requesting unit configured to send a service suspension request to the mobility management entity when receiving the terminating service indication message sent by the mobility management entity.
  • the first sending unit includes:
  • a first service request message unit configured to send a service request message to the mobility management entity; or a first tracking area update request message unit, configured to send a tracking area update request message to the mobility management entity.
  • the first bearer establishing unit includes: a second bearer establishing unit, configured to establish a radio bearer with the evolved base station;
  • a third bearer establishing unit configured to receive a tracking area update acceptance message sent by the mobility management entity, and send a tracking area update completion message to the mobility management entity to establish a wireless bearer relationship with the mobility management entity.
  • Embodiment 1 of the mobility management entity provided by the embodiment of the present invention includes:
  • a first resource reservation unit configured to reserve a packet domain network resource of the user equipment according to the received indication when the user equipment camped in the packet domain needs to initiate the circuit domain service
  • a first update bearer requesting unit configured to send, to the serving gateway, an update bearer request message indicating suspension, requesting to suspend a packet switched domain service that is performed by the user equipment;
  • the first receiving unit is configured to receive an update bearer response returned by the serving gateway.
  • a first determining unit configured to determine, according to the received service suspension request sent by the user equipment, that the user equipment stationed in the packet domain needs to initiate a circuit domain service
  • the second determining unit is configured to determine that the user equipment stationed in the packet domain needs to initiate the circuit domain service after sending the terminal call service indication message to the user equipment.
  • a first service suspension command unit configured to send a service suspension command to the evolved base station
  • the first service recovery unit is configured to restore the packet domain service of the user equipment when the user equipment circuit domain service ends and re-access the packet domain network.
  • a timer configured to: after the packet domain network resource of the user equipment is reserved, start a resource reservation timer, after the timer expires, release the reservation if the user equipment does not return to the packet domain network to perform a task Resources.
  • a first tracking area update request processing unit configured to receive a tracking area update request message sent by another user equipment
  • a second context unit configured to send a context request message to the other mobility management entity; receive a context response message sent by the other mobility management entity, and acquire, by the other user equipment, the suspended content included in the other mobility management entity The context of the packet switched domain service information;
  • a second service recovery unit configured to send a request for restoring the service to the other service gateway, to recover the suspended packet switched domain service
  • a first location update unit configured to initiate a location update process with the home subscriber server, acquire subscription data of the other user equipment, and register with the home subscriber server;
  • a first downlink tunnel information processing unit configured to send a tracking area update accept message to the other user equipment, receive a tracking area update complete message sent by the other user equipment, and establish a radio bearer with the other user equipment Obtaining the downlink tunnel information from the tracking area update completion message, and sending an update bearer request message carrying the downlink tunnel information to the other serving gateway.
  • the first service recovery unit includes:
  • a second receiving unit configured to receive a message sent by the user equipment to recover the packet domain service, where the second update bearer requesting unit is configured to send, to the serving gateway, an update bearer request message indicating recovery, to restore the user equipment Packet switched domain service; receiving an update 7
  • a fourth bearer establishing unit configured to establish a radio bearer, and obtain downlink tunnel information
  • the second sending unit is configured to send the downlink tunnel information to the serving gateway.
  • a first context unit configured to receive a context request message sent by the new mobility management entity, and send a context response message to the new mobility management entity, carrying a context of the packet switched domain service information suspended by the user equipment.
  • a first forwarding data unit configured to receive a forwarding data request message sent by the new mobility management entity; send a forwarding data request message to the old serving gateway, to enable the old serving gateway to forward the buffered data to a new serving gateway; And forwarding a data request accept message sent by the old service gateway; sending a forward data request accept message to the new mobility management entity.
  • the second receiving unit includes:
  • a second service request message unit configured to receive a service request message sent by the user equipment, or a second track update request message unit, configured to receive a tracking area update request message sent by the user equipment.
  • the fourth bearer establishing unit includes:
  • a fifth bearer establishing unit configured to send an initialization context request message to the evolved base station, establish an air interface resource of the radio bearer, receive an initialization context response message sent by the evolved base station, and obtain the downlink from the initialization context response message.
  • a sixth bearer establishing unit configured to send a tracking area update accept message to the user equipment, receive a tracking area update complete message sent by the user equipment, and establish a wireless relationship with the user equipment.
  • the bearer obtains the downlink tunnel information from the tracking area update completion message.
  • the second sending unit includes:
  • a third sending unit configured to send an update bearer request message carrying the downlink tunnel information to the serving gateway
  • the fourth sending unit is configured to send the downlink tunnel information to the serving gateway in the update bearer request message indicating the recovery.
  • the first embodiment of the mobile management entity provided by the embodiment of the present invention is the first mobile management entity in the embodiment of the processing system corresponding to the circuit switched domain service provided by the embodiment of the present invention.
  • a second tracking area update request processing unit configured to receive a tracking area update request message sent by the user equipment
  • a third context unit configured to send a context request message to the old mobility management entity, receive a context response message sent by the old mobility management entity, and acquire, by the user equipment, the suspended packet recorded in the old mobility management entity
  • a third service recovery unit configured to send a request for restoring a service to the serving gateway, to recover the suspended packet switched domain service
  • a second location update unit configured to initiate a location update process with the home subscriber server, acquire subscription data of the user equipment, and register with the home subscriber server;
  • a second downlink tunnel information processing unit configured to send a tracking area update accept message to the user equipment, receive a tracking area update complete message sent by the user equipment, and establish a radio bearer with the user equipment, Obtaining the downlink tunnel information in the tracking area update completion message, and sending an update bearer request message carrying the downlink tunnel information to the serving gateway.
  • the third service recovery unit includes:
  • a fourth service recovery unit configured to send an update bearer request for recovering the service to the service gateway; and receive an update bearer response sent by the service gateway;
  • the fifth service recovery unit is configured to send a setup bearer request for recovering the service to the new serving gateway, receive the setup bearer response sent by the new service gateway, and send a forward data request message to the old mobility management entity.
  • the evolved base station embodiment provided by the embodiment of the present invention includes: a second service suspension command unit, configured to receive a service suspension command sent by the mobility management entity, and a second connection release unit, configured to forward the buffered data in the user equipment bearer to the service gateway, so that the service gateway caches the Data.
  • a second connection release unit configured to send a connection release request message to the mobility management entity; receive a connection release command message sent by the mobility management entity; and send a connection release complete message to the mobility management entity.
  • a seventh bearer establishing unit configured to receive an initial context request message sent by the mobility management entity, establish an air interface resource of the radio bearer, and establish a radio bearer with the user equipment;
  • a context response message unit configured to send, to the mobility management entity, an initialization context response message carrying downlink channel information.
  • Embodiment 1 of the service gateway provided by the embodiment of the present invention includes:
  • a third receiving unit configured to receive an update bearer request suspension processing unit sent by the mobility management entity, configured to clear the downlink tunnel corresponding to the user equipment according to the indication of the updated update bearer request message Information, close the valve, record the pending indication.
  • a buffering unit configured to cache the packet domain service downlink data when the ongoing packet domain service includes downlink data.
  • a third forwarding data unit configured to receive data forwarded by the evolved base station, and cache the data.
  • a recovery processing unit configured to receive an update bearer request message sent by the mobility management entity to indicate recovery; open a valve according to the indication of the updated update bearer request message, and send an update bearer response message to the mobility management entity; Acquire and update the downlink tunnel information, and send the buffered downlink data packet.
  • a first process initiating unit configured to initiate a policy and charging control rule interaction process to the policy and charging rule function
  • a third update bearer requesting unit configured to send, to the packet data network gateway, an update bearer request message indicating suspension or indication of suspension, so that the packet data network gateway initiates a policy and a meter to the policy and charging rule function.
  • the fee control rule interaction process configured to send, to the packet data network gateway, an update bearer request message indicating suspension or indication of suspension, so that the packet data network gateway initiates a policy and a meter to the policy and charging rule function.
  • the third forwarding data unit is configured to receive the forwarding data request sent by the old mobility management entity, and the The stored data is forwarded to the new service gateway; a forward data acceptance message is sent to the old mobility management entity.
  • the first embodiment of the service gateway in the embodiment of the present invention is the first service gateway in the embodiment of the processing system corresponding to the circuit switched domain service provided by the embodiment of the present invention.
  • a third change processing unit configured to receive a setup bearer request sent by the mobility management entity, send an update bearer request message for recovering the service to the packet data network gateway, and receive an update bearer response message sent by the packet data network gateway;
  • a second downlink tunnel processing unit configured to send a setup bearer response message to the mobility management entity, receive an update bearer request message that is sent by the mobility management entity and carry the downlink tunnel information, and obtain and update the downlink tunnel information. , send buffered downstream packets.
  • a cache unit configured to receive cached data forwarded by the old service gateway.
  • An operation unit configured to receive an update bearer request sent by the serving gateway, and operate the valve according to the indication of the update bearer request;
  • a second process initiating unit configured to initiate a policy and charging control rule interaction process to the policy and charging rule function
  • an update bearer response unit configured to send an update bearer response to the serving gateway.
  • Embodiments of the processing system for returning the circuit switched domain service to the traditional network according to the embodiment of the present invention, the user equipment embodiment, the evolved base station embodiment, the mobility management entity, the first embodiment, the mobile management entity, the second embodiment, the service gateway, and the service
  • the following describes the specific operation mode of the packet data network gateway embodiment.
  • the description of the method for the service suspension method provided by the embodiment of the present invention is not described in detail herein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

业务挂起的方法、 业务恢复的方法、 系统及设备 本申请要求于 2008 年 1 月 25 日提交中国专利局、 申请号为 200810007021.0、 发明名称为 "业务挂起的方法、 业务恢复的方法、 系统及设 备" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域, 尤其涉及一种业务挂起的方法、业务恢复的方 法、 系统及设备。
背景技术
通用分组无线业务 /通用移动通信系统( GPRS/UMTS , General Packet Radio Service/ Universal Mobile Telecommunications System ) 是第三代伙伴计戈1 J ( 3 GPP, The 3rd Generation Partnership Project )组织定义的一种移动通信网络, 其包括无线接入网络( Radio Access Network, RAN )和核心网络( Core Network, CN ) 两部分。 其中, CN从逻辑上分为电路交换域( Circuit Switched Domain, CS )和分组交换域(Packet Switched Domain, PS )。 CS域主要处理语音业务, PS域主要处理分组数据业务。
为了适应无线宽带技术的发展, 3GPP制定了长期演进计划 (LTE, Long Term Evolution ),在 LTE的指导下定义了新的移动通信网络的架构,该架构与 现在的 GPRS/UMTS相比只保留了分组交换域,因此该架构可以称为演进的分 组系统 ( EPS , evolved packet system )。
由于 EPS只保留了分组交换域,因此演进系统中不能进行 CS业务。然而, 运营 GPRS/UMTS网络的运营商的很多业务都需要通过电路域完成, 例如 CS 语音业务以及很多增值业务等。 为了保护投资,运营商希望在网络的演进初期 仍然可以通过 EPS网络提供 CS业务, 因此提出了一种通过 EPS网络连接到 CS 或核心网的方法。
在对现有技术的研究和实践过程中, 发明人发现现有技术存在以下问题: 由于在进行 CS业务之前需要进行 PS切换, PS切换的过程又包括了切换 准备和切换执行阶段, 需要的时间较长, 造成的时延较大, 因此增加了 CS业 务的接通时长, 会带来较差的用户体验, 而且在需要进行某些特殊业务, 例如 进行紧急呼叫 110、 112时, 需要立刻发起呼叫, 尽量快速的接通 CS业务, 此时如果有正在进行中的 PS业务, 也必须先将 PS业务切换到 GPRS/UMTS 网络中的 PS域, 切换造成的时延, 不能满足这些特殊业务时效性的需求。
发明内容
本发明实施例要解决的技术问题是提供一种业务挂起的方法、业务恢复的 方法、 系统及设备, 以减少进行 CS fallback处理时进行 CS业务前的时延, 进 一步可以避免资源浪费。
为解决上述技术问题本发明实施例一方面, 提供了一种业务挂起的方法, 应用于包括至少一个分组域核心网设备和至少一个电路域核心网设备的通信 系统中, 其中分组域核心网设备与电路域核心网设备通过接口相连, 包括: 当在驻扎在分组域的用户设备需要发起电路域业务时,所述分组域核心网 设备根据收到的指示保留所述用户设备的分组域网络资源;当所述用户设备当 前正在进行业务时, 则緩存发送给所述用户设备的下行业务数据和 /或终止发 送上行数据, 并且转换到电路域通信网络进行电路域业务。
另一方面,提供了一种业务恢复的方法,应用于包括至少一个分组域核心 网设备和至少一个电路域核心网设备的通信系统中,其中分组域核心网设备与 电路域核心网设备通过接口相连, 所述方法包括:
当用户设备在电路域网络进行电路域业务结束, 重新接入分组域网络时 , 判断所述用户设备是否有分组域业务被挂起,若有则所述分组域核心网设备恢 复所述用户设备的分组域业务。
另一方面,提供了一种电路交换域业务返回传统网络的系统,其特征在于, 所述系统包括用户设备、 移动管理实体、 服务网关, 其中:
所述第一移动管理实体,用于在驻扎在分组域的用户设备需要发起电路域 业务时,根据收到的指示保留所述用户设备的分组域网络资源;发送指示挂起 的更新承载请求消息;
所述第一服务网关,用于接收所述移动管理实体发送的指示挂起的更新承 载请求消息,根据所述指示挂起的更新承载请求消息的指示,保留所述用户设 备的分组域网络资源;
所述用户设备,用于停止当前正在进行的分组域业务,转换到电路域网络。 另一方面, 提供了一种一种业务恢复的系统, 所述系统包括用户设备、 第 一移动管理实体、 第一服务网关, 其中:
所述第一移动管理实体,用于在用户设备在电路域网络进行电路域业务结 束, 重新接入分组域网络时, 判断所述用户设备是否有分组域业务被挂起, 若 有则恢复所述用户设备的分组域业务资源,并向所述第一服务网关发送指示恢 复的消息;
所述第一服务网关,用于接收所述第一移动管理实体发送的指示恢复的消 息, ^^据所述指示恢复的消息的指示, 恢复所述用户设备的分组域网络资源。
另一方面, 提供了一种用户设备, 所述用户设备包括:
业务挂起请求单元, 用于在准备进行电路交换域业务时, 向移动管理实体 发送业务挂起请求, 以保留所述用户设备的分组域网络资源,緩存所述分组域 业务下行数据;
第一接入单元,用于停止当前正在进行的分组域业务,转换到电路域网络。 另一方面, 提供了一种移动管理实体, 所述移动管理实体包括: 第一资源保留单元,用于在驻扎在分组域的用户设备需要发起电路域业务 时, 根据收到的指示保留所述用户设备的分组域网络资源;
第一更新承载请求单元,用于向服务网关发送指示挂起的更新承载请求消 息, 请求挂起所述用户设备正在执行的分组交换域业务;
第一接收单元, 用于接收所述服务网关返回的更新承载响应。
另一方面, 提供了一种移动管理实体, 所述移动管理实体包括:
第二跟踪区更新请求处理单元 ,用于接收所述用户设备发送的跟踪区更新 请求消息;
第三上下文单元, 用于向旧移动管理实体发送上下文请求消息;接收所述 旧移动管理实体发送的上下文响应消息,获取所述用户设备在所述旧移动管理 实体中记录的包含挂起的分组交换域业务信息的上下文;
第三业务恢复单元, 用于向服务网关发送用于恢复业务的请求, 以恢复所 述挂起的分组交换域业务;
第二位置更新单元, 用于与归属用户服务器发起位置更新流程,获取所述 用户设备的签约数据, 并向所述归属用户服务器注册;
第二下行隧道信息处理单元,用于向所述用户设备发送跟踪区更新接受消 息;接收所述用户设备发送的跟踪区更新完成消息, 建立与所述用户设备之间 的无线承载,从所述跟踪区更新完成消息中获取所述下行隧道信息,将携带有 所述下行隧道信息的更新承载请求消息向所述服务网关发送送。
另一方面, 提供了一种演进基站, 所述演进基站包括:
第二业务挂起命令单元, 用于接收移动管理实体发送的业务挂起命令消 第二转发数据单元, 用于将用户设备承载中緩存的数据转发到服务网关, 以使所述服务网关緩存所述数据。
另一方面, 提供了一种服务网关, 所述服务网关包括:
第三接收单元,用于接收移动管理实体发送的指示挂起的更新承载请求消 挂起处理单元, 用于根据所述指示挂起的更新承载请求消息的指示, 清空 用户设备对应承载的下行隧道信息, 关闭阀门 , 记录所述挂起指示。
另一方面, 提供了一种服务网关, 所述服务网关包括:
第三变化处理单元, 用于接收所述移动管理实体发送的建立承载请求; 向 分组数据网络网关发送用于恢复业务的更新承载请求消息;接收所述分组数据 网络网关发送的更新承载响应消息;
第二下行隧道处理单元, 用于向所述移动管理实体发送建立承载响应消 息;接收所述移动管理实体发送的携带有所述下行隧道信息的更新承载请求消 息, 获取并更新所述下行隧道信息, 发送緩存的下行数据包。
另一方面, 提供了一种分组数据网络网关, 所述分组数据网络网关包括: 操作单元, 用于接收服务网关发送的更新承载请求;根据所述更新承载请 求的指示对阀门进行操作;
第二流程发起单元,用于向策略和计费规则功能发起策略和计费控制规则 交互流程;
更新承载响应单元, 用于向所述服务网关发送更新承载响应。
由以上技术方案可以看出, 由于 UE在进行 CS业务时, 只需先将 PS业 务挂起, 即可进行 CS业务, 不需要先将 PS业务切换到 GPRS/UMTS网络中 的 PS域, 等 UE完成 CS业务之后再恢复被挂起的 PS业务, 从而简化了 CS fallback中 CS业务的处理流程, 避免了切换过程造成的时延, 提高了效率, 可以满足特殊业务对时间的需求。
进一步, 由于不需要将 PS业务切换到 GPRS/UMTS网络中的 PS域, 也 就避免了由于 2G网络不能同时支持 CS和 PS业务,导致的资源浪费以及可能 的失败。
附图说明
图 1为进行 CS fallback处理时 EPS网络与 CS域核心网网络架构示意图; 图 2为本发明实施例提供的业务挂起的方法实施例一信令交互图; 图 3为本发明实施例提供的业务挂起的方法实施例二信令交互图; 图 4为本发明实施例提供的业务挂起的方法实施例三信令交互图; 图 5为本发明实施例提供的业务挂起的方法实施例四信令交互图; 图 6为本发明实施例提供的业务挂起的方法实施例五信令交互图; 图 Ί为本发明实施例提供的业务挂起的方法实施例六信令交互图; 图 8为本发明实施例提供的业务挂起的方法实施例七信令交互图。
具体实施方式
本发明实施例提供了一种业务挂起的方法、业务恢复的方法、系统及设备, 在进行 CS业务前先挂起 ( Suspend ) PS业务, 可以减少进行 CS fallback处理 时进行 CS业务前的时延, 避免资源浪费。
图 1为进行 CS业务返回传统网络(CS fallback )处理时 EPS网络与 CS 域核心网网络架构示意图, 当用户设备 ( UE , User Equipment ) 101 在 GPRS/UMTS网络覆盖下, 可以通过接入网的基站控制器(BSC, Base Station Controller ) /无线网络控制器( RNC, Radio Network Controller ) 102连接到 CS 核心网;当 UE在 EPS网络覆盖下,可以通过 EPS网络中的演进基站(eNodeB ) 105连接到 EPS网络。 EPS网络中的移动管理实体(MME, Mobility Management Entity )104连接到传统 CS核心网的移动交换中心( MSC, Mobile Switch Center ) 103上, 服务网关 (S-GW, Serving Gateway ) 106与 MME 104、 eNodeB 105、 分组数据网络网关( P-GW, Packet Data Network Gateway ) 107相连。 图 1所 示的移动交换中心 103 中可以包括拜访位置寄存器(VLR, Visitor Location Register )功能。 当 UE101为呼叫发起方, 准备发起 CS始呼 (MO, Mobile Originating ) 业务, 例如发起一个语音业务的呼叫时, UE需要先转到传统的 GPRS/UMTS 网络, 选择一个第二代 /第三代( 2G/3G, Second Generation/Third Generation ) 移动通信网络的小区接入, 然后再开展 MO业务。 当 UE101为接收呼叫方, MSC103收到一个终呼 ( MT, Mobile Terminated )业务, 例如收到一个语音业 务的呼叫时, MSC103向 MME 104发送寻呼消息, MME103通过 EPS网络对 UE101进行寻呼, UE101收到该寻呼消息后, 需要先转到传统的 GPRS/UMTS 网络, 选择一个 2G/3G的小区进行接入, 然后再完成该 MT业务的后续处理, 该处理方法可以称为 CS fallback的处理方法。
MO业务和 MT业务是一个 CS业务的两个方面 , 对于该 CS业务的发起 呼叫方来说, 其执行的是 MO处理; 对于该 CS业务的接收呼叫方来说, 其执 行的是 MT处理。
在 CS fallback的处理中, 有时 UE101在发起或收到 CS业务时, 可能正 在 EPS网络进行 PS业务, 通信系统在进行 CS业务之前, 现有技术中为了保 证 PS业务的连续性,需要先将 EPS网络中的 PS业务切换到 2G/3G网络的 PS 域, 然后再开展 CS业务。
本发明中的 CS业务是 UE在 GPRS/UMTS网络中可以执行的 CS业务的 一个统称, 例如传统的 CS语音业务就是 CS业务的一个典型, 而其他的如短 消息业务( SMS, Short Message Service ), 位置业务( LCS, Location Service ) 以及未结构化 卜充业务数据 ( USSD, Unstructured Supplementary Service Data ) 等都属于 CS业务, 在本发明中不对此进行限定。
在进行 CS fallback处理时, UE可能为发起呼叫方, 进行 MO业务; 也可 能为接收呼叫方, 进行 MT业务; 在进行 MO业务时, 本发明实施例提供的业 务挂起的方法实施例一如下所述:
当 UE准备发起 CS业务时,要求 EPS网络保留当前 UE在 EPS网络的承 载。 当 UE发送完业务挂起请求后, 就可以转到 2G/3G网络, 选择一个合适的 小区开展 CS业务; 也可以当 UE收到网络侧发送的响应后, 再转到 2G/3G网 络开展 CS业务; 网络也可拒绝该挂起请求, 此时 UE需要等到 PS业务切换 到目的侧之后再开展 CS业务。 此时, 本发明实施例提供的业务挂起的方法实 施例一信令交互图如图 2所示:
步骤 201、 当 UE准备发起 CS业务时, UE向 EPS网络的 MME发送业务 挂起请求消息。
该业务挂起请求消息中还可以携带 UE准备进行的 CS业务类型, 如正常 的语音呼叫, 紧急呼叫等, 以供 EPS进行后续处理的决策。
通常 UE具有空闲态和激活态两种状态, 只有当 UE处于激活态才可以进 行业务, 而当业务结束后, 为了节省空口资源和 UE上的开销, UE可以转到 空闲态。 因此当用户需要进行业务时, 如果 UE处于空闲态, 则 UE需要从空 闲态转到激活态, 此时 UE可以通过向 MME发送服务请求消息, 建立信令连 接来完成状态的改变。 所以, 如果当 UE准备发起 CS业务时, UE处于空闲 态, 则该业务挂起请求消息可以使用服务请求消息实现, 即在服务请求消息中 携带业务挂起相关的指示; 也可以 UE先向网络侧发送服务请求消息, 等信令 连接建立完成后, UE再向 MME发送业务挂起请求消息。 如果当前 UE处于 激活态, 则 UE可以直接向 MME发送该业务挂起请求消息。 所述的业务挂起 请求消息可以是一条单独消息, 或者是一条携带业务挂起指示的现有消息。
在 UE发送完该业务挂起请求消息后,可以立即选择一个合适的 2G/3G小 区, 接入 2G/3G网络, 开展 CS业务, 例如当前 UE准备进行紧急呼叫; 也可 以等待网络侧响应该请求后, 再选择一个合适的 2G/3G小区, 接入 2G/3G网 络, 开展 CS业务, 例如当前 UE准备进行的是一个正常呼叫, 可以容忍一点 时延。 UE后续在 2G/3G网络的处理流程为现有的 CS业务流程, 在此不再赞 述。
进一步,可以根据进行网络状况以及运营商策略决定是否需要执行挂起处 理, 例如: 可以根据 UE将要进行 CS业务的 2G/3G移动网络的能力, 来决定 是否挂起 PS业务。 较常见的情况是在目的 2G/3G移动网络能同时支持 CS和 PS业务时, 切换 PS业务, 以同时执行 PS业务及 CS业务, 在目的 2G/3G移 动网络不能同时支持 CS和 PS业务时, 挂起 PS业务, 也即进入本流程; 和 / 或由运营商策略决定是进行 PS业务切换、 还是挂起 PS业务, 在运营商策略 决定挂起 PS业务时, 进入本流程, 挂起 PS业务。
步骤 202、 MME收到该挂起请求消息后向 S-GW发送更新承载请求消息。 MME收到该业务挂起消息后, 可以在该 UE的上下文中记录该业务挂起 指示, 并发起资源保留处理。
该更新承载请求消息可以携带有 "业务挂起"指示或关闭阀门 (Gate )指 示, 指示 S-GW执行挂起处理, 例如, 将该 UE对应的承载的下行隧道信息清 空, 并在 UE有进行下行业务时緩存数据。 该消息中还可以携带特定值的隧道 端点标识 ( TEID, Tunnel Endpoint Identifier )和网际协议 ( IP, Internet Protocol ) 地址等下行隧道信息, S-GW根据该下行隧道信息直接更新。
有上行 PS业务时停止上行业务, 有下行 PS业务时緩存数据, 均可看作 对 PS业务进行操作的行为。
步骤 203、 S-GW收到该消息后, 根据更新承载请求消息中携带的 "业务 挂起"指示或关闭阀门指示或特定值的下行隧道信息, 将该 UE对应的承载的 下行隧道信息清空, 在该 UE的承载或 UE的上下文中记录该 "业务挂起" 指 示。
当该 UE对应的承载的下行隧道信息被清空后,在 UE有进行下行业务时, 如果此时收到新的下行数据包, S-GW可以根据记录的 "业务挂起" 指示或关 闭阀门指示, 緩存该下行数据包, 而不是向 MME发送寻呼请求。
步骤 204、 S-GW向策略和计费规则功能(PCRF, Policy Charging Rules Function )发起策略和计费控制 (PCC, Policy Charging Control )规则交互流 程, S-GW将从 MME收到的 "业务挂起"指示或关闭阀门指示通知给 PCRF, PCRF根据该指示,执行关闭阀门处理,并向 S-GW发送关闭阀门指示的消息, S-GW根据 PCRF的指示关闭承载的阀门。
此步骤在 S-GW 具有策略和计费执行功能 (PCEF , Policy Charging Enforcement Function ) 时执行。
步骤 205、 S-GW向 P-GW发送更新承载请求消息, 该消息携带 "业务挂 起" 指示或关闭阀门指示。
P-GW收到该消息后,在该 UE的承载或 UE的上下文中记录 "业务挂起" 指示信息。
步骤 206、 P-GW将从 S-GW收到的 "业务挂起" 指示或关闭阀门指示通 知给 PCRF, PCRF根据该指示, 执行关闭阀门处理, 并向 P-GW发送关闭阀 门指示的消息, P-GW根据 PCRF的指示关闭承载的阀门。
步骤 207、 P-GW向 S-GW发送更新承载响应消息。
步骤 208、 S-GW向 MME发送更新承载响应消息。
由于 eNodeB中可能还緩存了该 UE的数据包, 为了避免 UE执行挂起操 作导致数据丢失, 因此在该消息中可以携带提供给 eNodeB的转发隧道信息, 从而将 eNodeB中緩存的数据转发到 S-GW中进行緩存。所述的转发隧道信息 可以由 S-GW单独分配, 也可以利用已有的 S-GW提供给 P-GW的下行隧道 信息。
步骤 209、 MME向 eNodeB发送业务挂起命令, 指示 eNodeB转发緩存的 数据。
该业务挂起命令中可以携带 S - G W提供的转发隧道信 , 。
MME在收到步骤 201的业务挂起请求后,就可以执行步骤 209,步骤 209 及其后续步骤与步骤 202到 208没有先后顺序关系,可以先后执行,也可以同 时执行, 其中较优的方案是先后执行。
步骤 210、 MME向 UE发送业务挂起响应消息。
本步骤为可选步骤, 当 MME向 eNodeB发送业务挂起命令的同时, 也可 以向 UE发送业务挂起响应消息。
上文在对步骤 201进行描述时提到, UE可以在发送完该业务挂起请求消 息后, 立即选择一个合适的 2G/3G小区, 接入 2G/3G网络, 开展 CS业务; 也可以等待网络侧响应该请求后,再选择一个合适的 2G/3G小区,接入 2G/3G 网络,开展 CS业务。 UE可以在接收到该业务挂起响应消息后,再转到 2G/3G 小区, 执行 CS业务。
进一步, MME可以根据步骤 201中收到的 CS业务类型来决定是否需要 向 UE发送业务挂起响应消息。 例如, 如果当前 UE需要执行紧急呼叫, 则 UE执行完步骤 201后可以立即转到 2G/3G执行 CS业务, 此时, MME不需 要向 UE发送业务挂起响应消息; 而如果 UE 需要执行一个正常的呼叫, 则 MME可以向 UE发送业务挂起响应消息, UE收到该响应消息后再转到 2G/3G 执行 CS业务。
进一步, MME还可以根据网络状况和 /或运营商策略决定是否需要执行挂 起操作, 如果不需要执行挂起操作, 则 MME收到步骤 201的消息后直接执行 步骤 210, 而不执行其他步骤。 在步骤 210的消息中指示 UE网络侧不进行挂 起操作,UE收到含有所述判断结果的业务挂起响应消息后,不立即转到 2G/3G 执行 CS业务, 而是等待网络的进一步指示。
步骤 211、 eNodeB收到该业务挂起命令后, 转发数据到 S-GW。
eNodeB收到该业务挂起命令后, 根据消息中提供的转发隧道信息, 将该 UE承载中緩存的数据转发到 S-GW中。
步骤 212、 S-GW緩存转发数据。
步骤 211、 212为可选项,例如如果当前 eNodeB上没有该 UE的承载上下 文, 则可以不进行步骤 211、 212。
步骤 213、 eNodeB完成数据转发后,向 MME发送 S1连接释放请求消息。 步骤 214、 MME收到 eNodeB的连接释放请求消息后向 eNodeB发送 S1 连接释放命令。
步骤 215、 如果此时该 UE对应的无线资源控制 (RRC, Radio Resource Control )连接还存在, 则发起 RRC连接释放处理流程。
如果 UE在发起挂起 PS业务流程后直接转入 2G/3G网络, EPS网络侧可 能会检测到 UE离开了 EPS网络, 而直接发起 RRC连接释放处理流程, 此时 步骤 215就有可能提前执行。
以上描述的步骤 211到步骤 215的顺序有可能会发生变, 由于 UE转到 2G/3G, 空口检测不到 UE的存在, 所以也可能由空口发起步骤 214, 此时就 不能保证消息的时序了。
因此, 如果 eNodeB在步骤 213前检测到 UE的 RRC连接异常, 则释放 RRC连接的同时也可以发起到 MME的 S1连接释放请求消息。
步骤 216、 eNodeB向 MME发送 S1连接释放完成消息。
以上即为在进行 MO业务时,对本发明实施例提供的业务挂起的方法实施 例一的描述, 应用本发明实施例提供的业务挂起的方法实施例一, UE在进行 MO业务时, 只需先将 PS业务挂起, 即可进行 CS业务, 不需要先将 PS业务 切换到 GPRS/UMTS网络中的 PS域, 等 UE完成 CS业务之后再恢复被挂起 的 PS业务, 从而简化了 CS fallback中 CS业务的处理流程, 避免了切换过程 造成的时延, 提高了效率, 可以满足特殊业务对时间的需求。
进一步, 在现有技术中, 由于现有的 2G系统中不能同时支持 CS和 PS 业务, 即当 UE进行 CS业务的同时必须暂停 PS业务。 所以此时即使将 EPS 网络内的 PS业务切换到 2G系统的 PS域中, 但该 PS业务在 CS业务进行的 同时并不能使用 ,此时 PS业务的切换没有任何意义,从而导致了资源的浪费。 本发明实施例提供的业务挂起的方法由于不需要将 PS 业务切换到 GPRS/UMTS网络中的 PS域, 也就避免了由于 2G网络不能同时支持 CS和 PS业务, 导致的资源浪费以及可能的失败。
进一步 , 当演进分组网络根据网络状况和 /或运营商策略判断不需要进行 挂起处理时, 例如: 2G/3G移动网络能同时支持 CS和 PS业务、 和 /或希望进 行 PS切换时, 也可以按照现有技术进行 PS切换。
以上进行 MO业务的处理中 ,为了避免演进分组网络中资源的长期占用导 致资源浪费和流程失败, 因此演进分组网在执行业务挂起处理时,可以同时启 动一个资源保留定时器, 当该定时器超时后, 如果 UE仍然没有返回到演进分 组网络执行业务恢复处理, 则演进分组网络执行资源释放流程, 完成保留资源 的释放。
演进分组网络的核心网络设备在执行挂起操作时均可以启动该资源保留 定时器, 即 MME在步骤 201、 S-GW在步骤 202、 P-GW在步骤 205收到挂起 操作指示, 当决定采用挂起操作时启动所述定时器。 一种改进方案是仅 MME 在步骤 201中启动所述资源保留定时器。
当演进分组网络启动了所述的资源保留定时器时,在步骤 210中也可以将 该定时器时长带给 UE, UE收到该定时器后也启动所述的资源保留定时器。
在进行 MT业务时,本发明实施例提供的业务挂起的方法实施例一如下所 述:
在 CS fallback场景下, 当驻扎在 EPS网络的 UE收到 MT业务时, 要求
EPS网络保留当前 UE在 EPS网络的承载,如果正在进行 PS业务则 EPS网络 緩存下行数据, UE停止发送上行数据。 当 UE接受到 CS终呼业务指示或发 送完业务挂起请求后, 就可以转到 2G/3G网络, 选择一个合适的小区开展 CS 业务。 此时, 本发明实施例提供的业务挂起的方法实施例二信令交互图如图 3 所示:
步骤 301、 MSC收到终呼业务请求后, 向 MME发送寻呼消息。
步骤 302、 MME向 eNodeB发送寻呼消息。
步骤 303、 eNodeB向 UE发送寻呼消息。
步骤 302和步骤 303 中的寻呼消息中可以包括 CS业务指示, 从而通知
UE当前存在 MT的 CS业务。该 CS业务指示可以作为寻呼原因值或一个独立 的指示来完成。 此时 MME不需要执行下述的步骤 304。
所述的包含了 CS业务指示的寻呼消息无论当前 UE处于激活态还是空闲 态均可以发送。
当 MME收到 MSC的寻呼消息后,如果当前 UE处于空闲态,则步骤 302 和步骤 303 中的寻呼消息也可以直接采用现有技术中的 EPS寻呼消息, 即不 需要包括 CS业务指示。 当 UE收到该 EPS消息后, 可以向 MME发送服务请 求消息, 将 UE转为激活态, 然后 MME执行下述的步骤 304, 将终呼业务指 示发送给 UE。
当 MME收到 MSC的寻呼消息后, 如果当前 UE处于激活态, 也可以不 执行步骤 302和步骤 303 , 而直接执行下述的步骤 304, 将终呼业务指示发送 给 UE。
步骤 304、 MME向 UE发送终呼业务指示消息。
步骤 305、 UE向 MME发送业务挂起请求消息,要求 EPS网络保留该 UE 当前在 EPS网络的资源。
UE收到包含 CS业务指示的寻呼消息或者终呼业务指示消息后, 如果选 择接收该业务, 则可以立即停止发送当前正在进行的 PS业务的上行数据包, 向 MME发送业务挂起请求消息, 等待 MME的响应消息到达后或立即选择一 个合适的 2G/3G小区, 驻扎到 2G/3G网络, 开展 CS业务。 UE后续在 2G/3G 网络的处理流程为现有的 CS业务流程, 在此不再赘述。
进一步, 当 EPS网络根据网络状况和 /或运营商策略判断不需要进行挂起 处理时, 也可以按照现有技术进行 PS切换, 此时 UE收到的包含 CS业务指 示的寻呼消息或者终呼业务指示消息中还可以携带是否需要进行挂起处理的 指示, 当包含所述的挂起处理的指示时, UE可以立即停止当前正在进行的 PS 业务的上行数据包, 相 MME发送业务挂起请求消息; 如果不包含所述的挂起 处理的指示时, UE可以继续正在进行的 PS业务, 以等待网络的进一步指示。
例如: 可以根据 UE将要进行 CS业务的 2G/3G移动网络的能力, 来决定 是否挂起 PS业务。 较常见的情况是在目的 2G/3G移动网络能同时支持 CS和 PS业务时, 切换 PS业务, 以同时执行 PS业务及 CS业务, 在目的 2G/3G移 动网络不能同时支持 CS和 PS业务时, 挂起 PS业务, 继续进行本流程; 和 / 或由运营商策略决定是进行 PS业务切换、 还是挂起 PS业务, 在运营商策略 决定挂起 PS业务时, 继续进行本流程, 挂起 PS业务。
UE向 MME发送业务挂起请求消息为可选步骤, 由于终呼业务指示消息 即为 MME发送过来的 , MME本身就知道 UE需要进行 MT业务, 因此 MME 可以不通过 UE的指示, 直接进入后续流程, 当然, UE发送业务挂起请求消 息, 要求 EPS网络保留该 UE当前在 EPS网络的资源, 也是可以的。
当 MME判断不需要进行挂起处理时, 可以按照现有技术进行 PS切换, 此时不需要执行后续步骤。 如果 MME收到了 UE在步骤 305发送的业务挂起 请求消息, 则 MME可以直接向 UE发送步骤 314, 消息中指示 UE网络侧不 进行挂起操作, UE收到含有所述判断结果的业务挂起响应消息后, 不立即转 到 2G/3G执行 CS业务, 而是等待网络的进一步指示。
该业务挂起请求消息也可以是 UE发送的其他指示信息, EPS 网络根据 UE的指示执行后续处理。
步骤 306、 MME向 S-GW发送更新承载请求消息。
MME可以在该 UE的上下文中记录该业务挂起指示, 并发起资源保留处 理。
该更新承载请求消息携带有 "业务挂起" 指示或关闭阀门 (Gate )指示, 指示 S-GW进行挂起操作, 例如, 将该 UE对应的承载的下行隧道信息清空, 并在 UE有进行下行业务时緩存数据。 该消息中还可以携带特定值的 TEID和 IP地址等下行隧道信息, S-GW根据该下行隧道信息直接更新。
步骤 307、 S-GW收到该消息后, 根据更新承载请求消息中携带的 "业务 挂起"指示或关闭阀门指示或特定值的下行隧道信息, 将该 UE对应的承载的 下行隧道信息清空, 在该 UE的承载或 UE的上下文中记录该 "业务挂起" 指 示。
当该 UE对应的承载的下行隧道信息被清空后,在 UE有进行下行业务时, 如果此时收到新的下行数据包, S-GW可以根据记录的 "业务挂起" 指示或关 闭阀门指示, 緩存该下行数据包, 而不是向 MME发送寻呼请求。
步骤 308、 S-GW向策略和计费规则功能(PCRF, Policy Charging Rules
Function )发起策略和计费控制 (PCC, Policy Charging Control )规则交互流 程,将 S-GW将从 MME收到的 "业务挂起"指示或关闭阀门指示通知给 PCRF, PCRF根据该指示,执行关闭阀门处理,并向 S-GW发送关闭阀门指示的消息, S-GW根据 PCRF的指示关闭承载的阀门。
此步骤当 S-GW 具有策略和计费执行功能 (PCEF , Policy Charging
Enforcement Function ) 时执行。
步骤 309、 S-GW向 P-GW发送更新承载请求消息, 该消息携带 "业务挂 起" 指示或关闭阀门指示。
P-GW收到该消息后,在该 UE的承载或 UE的上下文中记录 "业务挂起" 指示信息。
步骤 310、 P-GW将从 S-GW收到的 "业务挂起" 指示或关闭阀门指示通 知给 PCRF, PCRF根据该指示, 执行关闭阀门处理, 并向 P-GW发送关闭阀 门指示的消息, P-GW根据 PCRF的指示关闭承载的阀门。
步骤 311、 P-GW向 S-GW发送更新承载响应消息。
步骤 312、 S-GW向 MME发送更新承载响应消息。
由于 eNodeB中可能还緩存了该 UE的数据包, 为了避免 UE执行挂起操 作导致数据丢失, 因此在该消息中可以携带提供给 eNodeB的转发隧道信息, 从而将 eNodeB中緩存的数据转发到 S-GW中进行緩存。所述的转发隧道信息 可以由 S-GW单独分配, 也可以利用已有的 S-GW提供给 P-GW的下行隧道 信息。
步骤 313、 MME向 eNodeB发送业务挂起命令, 指示 eNodeB转发緩存的 数据。
该业务挂起命令中可以携带 S - G W提供的转发隧道信 , 。
MME在步骤 304或步骤 305之后, 就可以执行步骤 313, 步骤 313及其 后续步骤与步骤 306到 312没有先后顺序关系,可以先后执行,也可以同时执 行, 其中较优的方案是先后执行。
步骤 314、 MME向 UE发送业务挂起响应消息。
本步骤为可选步骤, 当 MME向 eNodeB发送业务挂起命令的同时, 也可 以向 UE发送业务挂起响应消息, UE接收到该消息后,可以转到 2G/3G小区, 执行 CS业务。
步骤 315、 eNodeB收到该业务挂起命令后, 转发数据到 S-GW。
eNodeB收到该业务挂起命令后, 根据消息中提供的转发隧道信息, 将该
UE承载中緩存的数据转发到 S-GW中。
步骤 316、 S-GW緩存转发数据。
步骤 313、 315、 316为可选项, 例如如果当前 eNodeB上没有该 UE的承 载上下文, 则可以不进行步骤 313、 315、 316。
步骤 317、 eNodeB完成数据转发后,向 MME发送 S1连接释放请求消息。 步骤 318、 MME收到 eNodeB的连接释放请求消息后向 eNodeB发送 S1 连接释放命令。
步骤 319、 如果此时该 UE对应的 RRC连接还存在, 则发起 RRC连接释 放处理流程。
步骤 320、 eNodeB向 MME发送 S1连接释放完成消息。
而步骤 313 ~步骤 317为可选步骤, 步骤 318 ~步骤 320由 MME决定是 否发起。 如果步骤 301中 MME收到寻呼消息后, 当前 UE处于空闲态, 此时 MME采用步骤 302的寻呼消息向 UE指示终呼业务到来, 然后 UE不向网络 回步骤 305的业务挂起请求消息, 而是直接转到 2G/3G网络,此时 eNodeB和 MME之间不存在 S 1连接 , 此时, 步骤 313 ~步骤 320的流程就不需要执行。
以上进行 MT业务的处理中,为了避免演进分组网络中资源的长期占用导 致资源浪费和流程失败, 因此演进分组网在执行业务挂起处理时,可以同时启 动一个资源保留定时器, 当该定时器超时后, 如果 UE仍然没有返回到演进分 组网络执行业务恢复处理, 则演进分组网络执行资源释放流程, 完成保留资源 的释放。
演进分组网络的核心网络设备在执行挂起操作时均可以启动该资源保留 定时器, 即 MME在步骤 306之前, 以及 S-GW在步骤 306、 P-GW在步骤 309 收到挂起操作指示后, 当决定采用挂起操作时启动所述定时器。一种改进方案 时仅 MME在发送步骤 306之前启动所述资源保留定时器。
当演进分组网络启动了所述的资源保留定时器时,在步骤 314中也可以将 该定时器时长带给 UE, UE收到该定时器后也启动所述的资源保留定时器。
以上即为在进行 MT业务时,对本发明实施例提供的业务挂起的方法实施 例二的描述, 应用本发明实施例提供的业务挂起的方法实施例二, UE在进行 MT业务时, 只需先将 PS业务挂起, 即可进行 CS业务, 不需要先将 PS业务 切换到 GPRS/UMTS网络中的 PS域, 等 UE完成 CS业务之后再恢复被挂起 的 PS业务, 从而简化了 CS fallback中 CS业务的处理流程, 避免了切换过程 造成的时延, 提高了效率, 可以满足特殊业务对时间的需求。
进一步, 由于不需要将 PS业务切换到 GPRS/UMTS网络中的 PS域, 也 就避免了由于 2G网络不能同时支持 CS和 PS业务,导致的资源浪费以及可能 的失败。
进一步, 当演进分组网络根据网络状况和 /或运营商策略判断不需要进行 挂起处理时, 例如: 2G/3G移动网络能同时支持 CS和 PS业务、 和 /或希望进 行 PS切换时, 也可以按照现有技术进行 PS切换。
本发明中,驻扎在 EPS网络的 UE由于需要执行 CS业务而挂起 EPS网络 中的 PS业务, 并转到 2G/3G网络完成相关的 CS业务后, 该 UE需要立即选 择合适的 LTE小区重新接入 EPS网络中, 并恢复被挂起的 PS业务
如果 UE在执行挂起操作过程中启动了资源保留定时器,则当 UE完成 CS 业务后接入 EPS 网络时, 如果所示定时器已经超时, 即意味着网络侧已经释 放了之前挂起操作时保留的资源, 此时 UE不需要执行恢复处理, 而是本地释 放之前保留的资源。
当 UE在挂起过程中没有启动资源保留定时器或该定时器没有超时, 则
UE执行下述的恢复流程。
由于 UE处于运动状态,因此 UE在 2G/3G网络完成 CS业务后 ,转到 EPS 网络后, 该 UE可能已经离开了原先服务的跟踪区 (TA, Tracking Area ), 即 该 UE中记录的 TA列表中没有包括该 UE当前选择的 LTE小区所属的 TA, 此时 UE需要发起跟踪区更新流程完成到 EPS网络的注册。反之, 如果 UE转 到 EPS网络后, 还处于原先服务的跟踪区范围, 即该 UE中记录的 TA列表中 包括了该 UE当前选择的 LTE小区所属的 TA, 该 UE可以立即执行恢复被挂 起的 PS业务的处理。
本发明实施例提供的业务挂起的方法实施例三,也就是当 UE还处于原先 服务的跟踪区范围时的恢复挂起的 PS业务处理, 其信令交互图如图 4所示: 步骤 401、 UE重新驻扎到 LTE小区, 接入 EPS网络后, 检测到需要恢复 挂起的 PS业务, 则向 MME发送服务请求消息。
该服务请求消息中可以携带 "业务恢复" 的信息指示。
步骤 402、 MME收到该服务请求消息后, 根据收到的服务请求消息中携 带的 "业务恢复" 的信息指示, 或之前执行挂起操作时记录的该 UE的 "业务 挂起" 信息指示, 执行恢复业务处理, 向 S-GW发送更新承载请求消息。
该更新承载请求消息中携带 "业务恢复" 指示或开启阀门指示。
S-GW收到该更新承载请求消息后, 根据其携带的 "业务恢复" 指示或开 启阀门指示, 恢复被挂起的资源。 在此过程中, 如果 S-GW收到该 UE新的下 行数据包, 不发起到 MME的寻呼请求。
步骤 403、 S-GW向 PCRF发起 PCC规则交互流程, 将 S-GW从 MME收 到的 "业务恢复" 指示或开启阀门指示通知给 PCRF, PCRF根据该指示, 执 行开启阀门处理, 并向 S-GW发送开启阀门指示的消息, S-GW根据 PCRF的 指示开启承载的阀门。
此步骤当 S-GW具有 PCEF功能时执行。
步骤 404、 S-GW向 P-GW发送更新承载请求消息。
该更新承载请求消息携带有 "业务恢复" 指示或开启阀门指示。
步骤 405、 P-GW将从 S-GW收到的 "业务恢复" 指示或开启阀门指示通 知给 PCRF, PCRF根据该指示, 执行开启阀门处理, 并向 P-GW发送开启阀 门指示的消息, P-GW根据 PCRF的指示开启承载的阀门。
步骤 406、 P-GW向 S-GW发送更新承载响应消息。
步骤 407、 S-GW向 MME发送更新承载响应消息。
步骤 408、 MME向 eNodeB发送初始化上下文请求消息, 建立无线承载 的空口资源。
MME在收到服务请求消息后, 就可以执行步骤 408, 步骤 408及其后续 步骤与步骤 402到 407没有先后顺序关系, 可以先后执行, 也可以同时执行, 其中较优的方案为同时执行。
步骤 409、 eNodeB和 UE之间建立空口无线承载。
当 UE检测到对应的空口无线承载已经建立完成, 则可以发送上行的数据 包。
步骤 410、 eNodeB向 MME发送初始化上下文响应消息。
该初始化上下文响应消息中携带有 eNodeB分配的,供 S-GW使用的相关 承载的下行隧道信息, 包括 TEID、 IP地址等。
步骤 411、 MME向 S-GW发送更新承载请求消息。
该更新承载请求消息中携带有 eNodeB分配的承载下行隧道信息。
步骤 412、 S-GW根据请求消息中携带的信息, 更新该 UE的下行隧道信 息。 并向 MME发送更新承载响应消息。
S-GW更新完下行隧道信息后, 可以发送緩存的下行数据包。
此时对挂起 PS业务的恢复完成。
本处理流程中, 步骤 402 ~步骤 407与步骤 408 ~步骤 412相互独立, 没 有先后关系, 可以单独执行。 即 MME在执行步骤 402的同时也可以执行步骤 408。
当演进分组网络设备中的资源保留定时器没有超时,则收到相关的恢复指 示后, 停止所述的资源保留定时器。 即 MME在收到步骤 401、 S-GW在收到 步骤 402、 P-GW在收到步骤 404时, 如果启动的资源保留定时器没有超时, 则停止该定时器。
当 S-GW中对应承载存在下行隧道信息, 即可以发送下行数据包, 因此可 以先进行建立空口无线承载,在 eNodeB向 MME发送初始化上下文响应消息, 向 MME提供了下行隧道信息后, 再向 S-GW发起更新承载流程。 此时本发明 实施例提供的业务挂起的方法实施例四的恢复挂起 PS业 ^言令交互图如图 5 所示:
步骤 501、 UE重新驻扎到 LTE小区, 接入 EPS网络后, 检测到需要恢复 挂起的 PS业务, 则向 MME发送服务请求消息。
该服务请求消息中可以携带 "业务恢复" 的信息指示。
步骤 502、 MME向 eNodeB发送初始化上下文请求消息, 建立承载的空 口资源。
步骤 503、 eNodeB和 UE之间建立空口无线承载。
当 UE检测到对应的空口无线承载已经建立完成, 则可以发送上行的数据 包。
步骤 504、 eNodeB向 MME发送初始化上下文响应消息。
该初始化上下文响应消息中携带有 eNodB分配的, 供 S-GW使用的相关 承载的下行隧道信息, 包括 TEID、 IP地址等。
步骤 505、 MME向 S-GW发送承载更新请求消息。
该承载更新请求消息中包含 eNodeB提供的承载的下行隧道信息, MME 还可以根据之前执行挂起操作时记录的该 UE的 "业务挂起"信息指示, 执行 恢复业务处理, 在该承载更新请求消息中携带一个 "业务恢复"指示或开启阀 门指示。
S-GW收到该承载更新请求消息后,可以根据其携带的下行隧道信息或该 "业务恢复"指示或开启阀门指示, 更新承载的下行隧道信息, 也可以发送緩 存的下行数据包, 并执行后续的资源恢复处理。
步骤 506、 S-GW向 PCRF发起 PCC规则交互流程, 将 S-GW从 MME收 到的 "业务恢复" 指示或开启阀门指示通知给 PCRF, PCRF根据该指示, 执 行开启阀门处理, 并向 S-GW发送开启阀门指示的消息, S-GW根据 PCRF的 指示开启承载的阀门。
此步骤当 S-GW具有 PCEF功能时执行。
步骤 507、 S-GW向 P-GW发送更新承载请求消息。
该消息携带有 "业务恢复" 指示或开启阀门指示。
步骤 508、 P-GW将从 S-GW收到的 "业务恢复" 指示或开启阀门指示通 知给 PCRF, PCRF根据该指示, 执行开启阀门处理, 并向 P-GW发送开启阀 门指示的消息, P-GW根据 PCRF的指示开启承载的阀门。
步骤 509、 P-GW向 S-GW发送更新承载响应消息。 步骤 510、 S-GW向 MME发送更新承载响应消息。
此时对挂起 PS业务的恢复完成。
进一步, 本处理流程在步骤 503中当 UE建立了无线承载后, UE可能立 即发送上行数据包,而此时 S-GW或 P-GW上对应承载的阀门可能还处于关闭 状态,从而会导致上行数据包被 S-GW或 P-GW丢弃。为了避免该情况的出现, 如果 S-GW或 P-GW的阀门处于关闭状态而收到了上行包时,如果该承载所属 的 UE处于挂起状态, 则 S-GW或 P-GW可以选择先緩存该数据包, 或者当 S-GW或 P-GW收到该上行的数据包后, 向 PCRF发送开启阀门请求消息, 由 PCRF指示 PCEF开启阀门, 从而完成上行数据包的发送。
当演进分组网络设备中的资源保留定时器没有超时,则收到相关的恢复指 示后, 停止所述的资源保留定时器。 即 MME在收到步骤 504、 S-GW在收到 步骤 505、 P-GW在收到步骤 507时, 如果启动的资源保留定时器没有超时, 则停止该定时器。
当 UE返回 EPS网络后离开了原先服务的跟踪区范围时,可以在发起的跟 踪区更新流程中完成挂起资源的恢复; 而即使 UE还在原先服务的跟踪区范围 时,也可以选择发起跟踪区更新流程完成挂起资源的恢复。本发明实施例提供 的业务挂起的方法实施例五的恢复挂起 PS业务信令交互图如图 6所示:
步骤 601、 UE重新驻扎到 LTE小区后, 检测到需要恢复挂起的 PS业务, 则向 MME发送跟踪区更新请求消息。 在该消息中可以携带激活标识( active flag ), 以要求网络恢复当前的承载。
该跟踪区更新请求消息中可以携带 "业务恢复" 的信息指示。
步骤 602、 MME收到该跟踪区更新请求消息后, 根据收到的服务请求消 息中携带的 "业务恢复" 的信息指示, 或之前执行挂起操作时记录的该 UE的 "业务挂起,,信息指示, 执行恢复业务处理, 则向 S-GW发送更新承载请求消 息, 该消息中携带 "业务恢复" 指示或开启阀门指示。
S-GW收到该更新承载请求消息后, 根据其携带的 "业务恢复" 指示或开 启阀门指示, 恢复被挂起的资源, 但继续緩存收到的数据包, 直到收到下行隧 道信息后再将緩存的数据包发送给 eNodeB。 在此过程中, 如果 S-GW收到该 UE新的下行数据包, 不发起到 MME的寻呼请求。 步骤 603、 S-GW向 PCRF发起 PCC规则交互流程, 将 S-GW从 MME收 到的 "业务恢复" 指示或开启阀门指示通知给 PCRF, PCRF根据该指示, 执 行开启阀门处理, 并向 S-GW发送开启阀门指示的消息, S-GW根据 PCRF的 指示开启承载的阀门。
此步骤当 S-GW可能会具有 PCEF功能时执行。
步骤 604、 S-GW向 P-GW发送更新承载请求消息。
该消息携带 "业务恢复" 指示或开启阀门指示。
步骤 605、 P-GW将从 S-GW收到的 "业务恢复" 指示或开启阀门指示通 知给 PCRF, PCRF根据该指示, 执行开启阀门处理, 并向 P-GW发送开启阀 门指示的消息, P-GW根据 PCRF的指示开启承载的阀门。
步骤 606、 P-GW向 S-GW发送更新承载响应消息。
步骤 607、 S-GW向 MME发送更新承载响应消息。
步骤 608、 MME向 UE发送跟踪区更新接受消息。
MME在收到跟踪区更新请求消息后, 就可以执行步骤 608, 步骤 608及 其后续步骤与步骤 602到 607没有先后顺序关系,可以先后执行,也可以同时 执行, 其中较优的方案为同时执行。
步骤 609、 UE向 MME发送跟踪区更新完成消息。
如果步骤 601中的跟踪区更新请求消息中携带了 active flag, 或根据 "业 务恢复"指示, 系统可在执行步骤 608和步骤 609的过程中完成承载对应空口 资源的建立。 此时, 当 UE检测到对应的空口无线承载已经建立完成, 则可以 发送上行的数据包;步骤 609中 MME收到的跟踪区更新完成消息中可以携带 eNodeB提供的承载的下行隧道信息, 包括 TEID、 IP地址等。
步骤 610、当 MME收到了 eNodeB提供的下行隧道信息后, MME向 S-GW 发送更新承载请求消息, 该消息中携带有 eNodeB提供的承载下行隧道信息。
步骤 611、 S-GW根据请求消息中携带的信息, 更新该 UE的下行隧道信 息。 并向 MME发送更新承载响应消息。
S-GW更新完下行隧道信息后, 可以发送緩存的下行数据包。
此时对挂起 PS业务的恢复完成。
本处理流程中, 步骤 602 ~步骤 607与步骤 608 ~步骤 612相互独立, 没 有先后关系, 可以单独执行。 即 MME在执行步骤 602的同时也可以执行步骤 608。
当演进分组网络设备中的资源保留定时器没有超时,则收到相关的恢复指 示后, 停止所述的资源保留定时器。 即 MME在收到步骤 601、 S-GW在收到 步骤 402、 P-GW在收到步骤 604时, 如果启动的资源保留定时器没有超时, 则停止该定时器。
当 S-GW中对应承载存在下行隧道信息, 即可以发送下行数据包, 因此可 以在 MME收到 UE发送的跟踪区更新完成消息, 并从中获取了下行隧道信息 后,再向 S-GW发起更新承载流程。本发明实施例提供的业务挂起的方法实施 例六的恢复挂起 PS业 ^言令交互图如图 Ί所示:
步骤 701、 UE重新驻扎到 LTE小区后, 检测到需要恢复挂起的 PS业务, 则向 MME发送跟踪区更新请求消息。 在该消息中可以携带激活标识( active flag ), 以要求网络恢复当前的承载。
该跟踪区更新请求消息中可以携带 "业务恢复" 的信息指示。
步骤 702、 MME向 UE发送跟踪区更新接受消息。
步骤 703、 UE向 MME发送跟踪区更新完成消息。
如果步骤 701中的跟踪区更新请求消息中携带了 active flag, 或根据 "业 务恢复"指示, 系统可在执行步骤 702和步骤 703的过程中完成承载对应空口 资源的建立。 此时, 当 UE检测到对应的空口无线承载已经建立完成, 则可以 发送上行的数据包; 步骤 703 中 MME 收到的跟踪区更新完成消息中携带 eNodeB提供的承载的下行隧道信息, 包括 TEID、 IP地址等。
步骤 704、 MME向 S-GW发送承载更新请求消息。
该承载更新请求消息中包含 eNodeB提供的承载的下行隧道信息, MME 还可以根据之前执行挂起操作时记录的该 UE的 "业务挂起"信息指示, 执行 恢复业务处理, 在该承载更新请求消息中携带一个 "业务恢复"指示或开启阀 门指示。
S-GW收到该承载更新请求消息后,可以根据其携带的下行隧道信息或该 "业务恢复,,指示或开启阀门指示, 更新承载的下行隧道信息, 并发送緩存的 下行数据包, 并执行后续的资源恢复处理。 步骤 705、 S-GW向 PCRF发起 PCC规则交互流程, 通将 S-GW从 MME 收到的 "业务恢复" 指示或开启阀门指示通知给 PCRF, PCRF ^居该指示, 执行开启阀门处理, 并向 S-GW发送开启阀门指示的消息, S-GW根据 PCRF 的指示开启承载的阀门。
此步骤当 S-GW可能会具有 PCEF功能时执行。
步骤 706、 S-GW向 P-GW发送更新承载请求消息。
该消息携带 "业务恢复" 指示或开启阀门指示。
步骤 707、 P-GW向 PCRF发起 PCC规则交互流程,将从 S-GW收到的 "业 务恢复" 指示或开启阀门指示通知给 PCRF, PCRF根据该指示, 执行开启阀 门处理, 并向 P-GW发送开启阀门指示的消息, P-GW根据 PCRF的指示开启 承载的阀门。
步骤 708、 P-GW向 S-GW发送更新承载响应消息。
步骤 709、 S-GW向 MME发送更新承载响应消息。
进一步, 当 UE在步骤 701中携带了激活标识或 "业务恢复" 指示后, 则 在步骤 702和步骤 703中当 UE建立了无线承载后,可能立即发送上行数据包, 而此时 S-GW或 P-GW上对应承载的阀门可能还处于关闭状态,从而会导致上 行数据包被 S-GW或 P-GW丢弃。为了避免该情况的出现,如果 S-GW或 P-GW 的阀门处于关闭状态而收到了上行包时,如果该承载所属的 UE处于挂起状态 , 则 PCEF可以选择先緩存该数据包,或者当 S-GW或 P-GW收到该上行的数据 包后, 向 PCRF发送开启阀门请求消息, 由 PCRF指示 PCEF开启阀门, 从而 完成上行数据包的发送。
当演进分组网络设备中的资源保留定时器没有超时,则收到相关的恢复指 示后, 停止所述的资源保留定时器。 即 MME在收到步骤 703、 S-GW在收到 步骤 704、 P-GW在收到步骤 706时, 如果启动的资源保留定时器没有超时, 则停止该定时器。
当 UE返回 EPS网络后 , 由于跟踪区的改变 ,其服务的 MME或 S-GW均 有可能发生改变, 为了在其服务的 MME或 S-GW发生改变, 或者 MME和 S-GW均发生改变时也能恢复挂起 PS业务, 本发明实施例提供的业务挂起的 方法实施例七的恢复挂起 PS业务信令交互图如图 8所示: 步骤 801、 UE重新驻扎到 LTE小区, 接入 EPS网络后, 检测到需要恢复 挂起的 PS业务, 则向 MME发送跟踪区更新请求消息。 在该消息中可以携带 激活标识( active flag ) , 以要求网络恢复当前的承载。
该跟踪区更新请求消息中可以携带 "业务恢复" 的信息指示。
步骤 802、 如果 ΜΜΕ发生了改变, 则收到跟踪区更新请求消息的 ΜΜΕ 是该 UE的新的服务节点, 即新 ΜΜΕ, 此时新 ΜΜΕ向旧 ΜΜΕ发送上下文 请求消息 , 获取该 UE在原来的 ΜΜΕ中记录的上下文。
步骤 803、旧 ΜΜΕ向新 ΜΜΕ发送上下文响应消息。如果 UE在老的 ΜΜΕ 中被标记为 "业务挂起", 则该上下文响应消息中需要携带该指示。
步骤 804、 新 ΜΜΕ向旧 ΜΜΕ发送上下文确认消息。
步骤 805、新 ΜΜΕ选择一个 S-GW,如果该 S-GW不同于原先服务该 UE 的 S-GW, 则向该新 S-GW发送建立承载请求, 要求建立该 UE的承载。
如果在步骤 803中旧 ΜΜΕ指示该 UE被挂起, 则该建立承载消息中可以 携带 "业务恢复" 指示或开启阀门指示。
新 S-GW收到该更新承载请求消息后, 根据其携带的 "业务恢复"指示或 开启阀门指示, 当后续收到下行数据包或转发的数据包时,如果该承载还没有 下行隧道信息, 则不向 ΜΜΕ发送下行数据到达通知, 直到下行隧道信息被更 新后再发送緩存的数据包。
步骤 806、新 S-GW向 P-GW发送更新承载请求消息, 该消息除了携带新 的 S-GW向 P-GW提供的下行隧道信息外,还可以携带 "业务恢复"指示或开 启阀门指示。
步骤 807、 P-GW向 PCRF发起 PCC规则交互流程,将从 S-GW收到的 "业 务恢复" 指示或开启阀门指示通知给 PCRF, PCRF根据该指示, 执行开启阀 门处理, 并向 P-GW发送开启阀门指示的消息, P-GW根据 PCRF的指示开启 载的阀门。
步骤 808、 P-GW向新 S-GW发送更新承载响应消息。
步骤 809、 新 S-GW向新 MME发送建立承载响应消息。
该建立承载响应消息中携带新 S-GW提供的上行隧道信息。如果新 S-GW 在步骤 805中检测到该 UE处于挂起状态,例如通过建立承载消息中携带的 "业 务恢复"指示或开启阀门指示判断出该 UE处于挂起状态, 则该消息中可以携 带提供给老 S-GW的转发隧道信息。所述的转发隧道信息可以由新 S-GW单独 分配, 也可以利用已有的 S-GW提供给 P-GW的下行隧道信息。
步骤 810、 如果在步骤 803中旧 MME指示该 UE被挂起, 并且新 MME 选择了新 S-GW, 则新 MME向旧 MME发送转发数据请求消息, 要求将旧 S-GW緩存的 UE 的下行数据包转发给新 S-GW。 因此该消息中可以携带新 S-GW上承载上下文的转发隧道信息。
步骤 811、 旧 MME向旧 S-GW发送转发数据请求消息, 该消息中可以携 带新 S-GW上承载上下文的转发隧道信息。
旧 S-GW收到该消息后, 开始将緩存的数据转发到新 S-GW中。
步骤 812、 旧 S-GW向旧 MME发送转发数据请求接受消息。
步骤 813、 旧 MME向新 MME发送转发数据请求接受消息。
在新 MME没有选择新 S-GW时, 则可以不执行步骤 805 ~步骤 813 , 使 用图 6中的步骤 602 ~步骤 607替代。
步骤 814、 新 MME和 HSS发起位置更新流程, 获取该 UE的签约数据, 并向 HSS注册新 MME等。
步骤 815、 MME向 UE发送跟踪区更新接受消息。
步骤 816、 UE向 MME发送跟踪区更新完成消息。
如果步骤 801中的跟踪区更新请求消息中携带了激活标识或 "业务恢复" 指示后, 则在步骤 815和步骤 816过程中系统完成承载对应空口资源的建立。 此时, 当 UE检测到对应的空口无线承载已经建立完成, 则可以发送上行的数 据包; 步骤 816中 MME收到的跟踪区更新完成消息中可以携带 eNodeB提供 的承载的下行隧道信息, 包括 TEID、 IP地址等。
步骤 817、 当新 MME收到了 eNodeB提供的下行隧道信息后, MME向新 S-GW发送更新承载请求消息, 该消息中携带 eNodeB提供的承载下行隧道信 步骤 818、 S-GW根据请求消息中携带的信息, 更新该 UE的下行隧道信 息。 并向 MME发送更新承载响应消息。
S-GW更新完下行隧道信息后, 可以发送緩存的下行数据包。 在新 MME没有选择新 S-GW时, 步骤 817 ~步骤 818可以被图 7中的步 骤 704 ~步骤 709代替。
本实施例中 MME和 S-GW均发生了变化,则新的 MME和 S-GW中不会 存在启动的资源保留定时器,但 P-GW中可以存在启动的资源保留定时器, 因 此当 P-GW在收到步骤 806时,如果启动的资源保留定时器没有超时, 则停止 该定时器。
当演进分组网络核心网设备中启动的资源保留定时器超时后,需要释放保 留的资源。
当 MME、 S-GW, P-GW中均启动了资源保留定时器时, 则当所述定时器 超时后, 所述设备本地释放保留的资源。所谓的本地释放是指设备不需要向其 他设备发送消息而直接释放相关资源。
当只有部分设备启动了资源保留定时器,一种典型的情况是 MME中启动 所述资源保留定时器,则当所述定时器超时后,该设备发起一个资源释放流程, 如承载释放流程,要求相关的网元释放所述保留的资源。所述的承载释放流程 是现有技术, 此处不再赘述。
以上即为对本发明实施例提供的业务挂起的方法实施例的描述,应用本发 明实施例提供的业务挂起的方法实施例, UE在进行 MO业务时,只需先将 PS 业务挂起, 即可进行 CS业务, 不需要先将 PS业务切换到 GPRS/UMTS网络 中的 PS域, 等 UE完成 CS业务之后再恢复被挂起的 PS业务, 从而简化了 CS fallback中 CS业务的处理流程,避免了切换过程造成的时延,提高了效率, 可以满足特殊业务对时间的需求。
由于不需要将 PS业务切换到 GPRS/UMTS网络中的 PS域, 也就避免了 由于 2G网络不能同时支持 CS和 PS业务, 导致的资源浪费以及可能的失败。
进一步 , 当演进分组网络根据网络状况和 /或运营商策略判断不需要进行 挂起处理时, 例如: 2G/3G移动网络能同时支持 CS和 PS业务、 和 /或希望进 行 PS切换时, 也可以按照现有技术进行 PS切换。
进一步, 在 UE执行完 CS业务回到 EPS网络后, 再恢复挂起的 PS业务, 将这些緩存的数据包发送给 UE, 从而避免数据包丢弃导致的业务失败以及计 费不准确的问题。 本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤 是可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可 读存储介质中, 该程序在执行时, 包括如下步骤:
一种业务挂起的方法,应用于包括至少一个分组域核心网设备和至少一个 电路域核心网设备的通信系统中 ,其中分组域核心网设备与电路域核心网设备 通过接口相连, 其特征在于, 包括:
当在驻扎在分组域的用户设备需要发起电路域业务时,所述分组域核心网 设备根据收到的指示保留所述用户设备的分组域网络资源;当所述用户设备当 前正在进行业务时, 则緩存发送给所述用户设备的下行业务数据和 /或终止发 送上行数据, 并且转换到电路域通信网络进行电路域业务; 或者当所述用户设 备当前没有进行业务时, 则转换到电路域通信网络进行电路域业务。
及一种业务恢复的方法,应用于包括至少一个分组域核心网设备和至少一 个电路域核心网设备的通信系统中,其中分组域核心网设备与电路域核心网设 备通过接口相连, 其特征在于, 所述方法包括:
当用户设备在电路域网络进行电路域业务结束, 重新接入分组域网络时, 判断所述用户设备是否有分组域业务被挂起,若有则所述分组域核心网设备恢 复所述用户设备的分组域业务。
上述提到的存储介质可以是只读存储器, 磁盘或光盘等。
本发明实施例提供的业务挂起的系统实施例包括: 用户设备、第一移动管 理实体、 第一服务网关。
其中第一移动管理实体,用于在驻扎在分组域的用户设备需要发起电路域 业务时,根据收到的指示保留所述用户设备的分组域网络资源;发送指示挂起 的更新承载请求消息;
第一服务网关,用于接收所述移动管理实体发送的指示挂起的更新承载请 求消息,根据所述指示挂起的更新承载请求消息的指示,保留所述用户设备的 分组域网络资源;
用户设备, 用于停止当前正在进行的分组域业务, 转换到电路域网络。 本发明实施例提供的业务恢复的系统实施例包括: 用户设备、第一移动管 理实体、 第一服务网关, 其中: 所述第一移动管理实体,用于在用户设备在电路域网络进行电路域业务结 束, 重新接入分组域网络时, 判断所述用户设备是否有分组域业务被挂起, 若 有则恢复所述用户设备的分组域业务资源,并向所述第一服务网关发送指示恢 复的消息;
所述第一服务网关,用于接收所述第一移动管理实体发送的指示恢复的消 息, ^^据所述指示恢复的消息的指示, 恢复所述用户设备的分组域网络资源 本发明实施例提供的业务挂起的系统实施例,其中的各装置的结构及功能 与本发明实施例提供的用户设备实施例移动管理实体实施例一、服务网关实施 例一、 实施例基本一致, 在此不详细描述, 具体参考下文。
本发明实施例提供的用户设备实施例包括:
业务挂起请求单元, 用于在准备进行电路交换域业务时, 向移动管理实体 发送业务挂起请求, 以保留所述用户设备的分组域网络资源,緩存所述分组域 业务下行数据;
第一接入单元,用于停止当前正在进行的分组域业务,转换到电路域网络。 第二接入单元, 用于在所述电路交换域业务结束后,选择长期演进计划小 区, 重新接入分组系统网络;
第一发送单元, 用于向所述移动管理实体发送消息, 以恢复分组交换域业 务;
第一承载建立单元, 用于建立无线承载。
其中业务挂起请求单元包括:
第一业务挂起请求单元, 用于在准备发起电路交换域业务时, 向移动管理 实体发送业务挂起请求;
或第二业务挂起请求单元,用于在收到所述移动管理实体发送的终呼业务 指示消息时, 向移动管理实体发送业务挂起请求。
其中, 第一发送单元包括:
第一服务请求消息单元, 用于向所述移动管理实体发送服务请求消息; 或第一跟踪区更新请求消息单元,用于向所述移动管理实体发送跟踪区更 新请求消息。
其中, 第一承载建立单元包括: 第二承载建立单元, 用于建立与演进基站之间的无线承载;
第三承载建立单元,用于接收所述移动管理实体发送的跟踪区更新接受消 息; 向所述移动管理实体发送跟踪区更新完成消息, 建立与所述移动管理实体 之间的无线 7 载。
本发明实施例提供的移动管理实体实施例一包括:
第一资源保留单元,用于在驻扎在分组域的用户设备需要发起电路域业务 时, 根据收到的指示保留所述用户设备的分组域网络资源;
第一更新承载请求单元,用于向服务网关发送指示挂起的更新承载请求消 息, 请求挂起所述用户设备正在执行的分组交换域业务;
第一接收单元, 用于接收所述服务网关返回的更新承载响应。
第一判断单元, 用于根据接收到的用户设备发送的业务挂起请求, 判断驻 扎在分组域的用户设备需要发起电路域业务;
或第二判断单元,用于在向所述用户设备发送终呼业务指示消息后, 判断 驻扎在分组域的用户设备需要发起电路域业务。
第一业务挂起命令单元, 用于向演进基站发送业务挂起命令;
第一业务恢复单元, 用于在所述用户设备电路域业务结束后, 重新接入分 组域网络时, 恢复所述用户设备的分组域业务。
定时器, 用于在保留所述用户设备的分组域网络资源之后, 启动资源保留 定时器, 在所述定时器超时后, 若所述用户设备未返回分组域网络执行任务, 则释放所述保留资源。
第一跟踪区更新请求处理单元,用于接收其他用户设备发送的跟踪区更新 请求消息;
第二上下文单元,用于向其他移动管理实体发送上下文请求消息;接收所 述其他移动管理实体发送的上下文响应消息,获取所述其他用户设备在所述其 他移动管理实体中记录的包含挂起的分组交换域业务信息的上下文;
第二业务恢复单元, 用于向其他服务网关发送用于恢复业务的请求, 以恢 复所述挂起的分组交换域业务;
第一位置更新单元, 用于与归属用户服务器发起位置更新流程,获取所述 其他用户设备的签约数据, 并向所述归属用户服务器注册; 第一下行隧道信息处理单元,用于向所述其他用户设备发送跟踪区更新接 受消息;接收所述其他用户设备发送的跟踪区更新完成消息, 建立与所述其他 用户设备之间的无线承载 ,从所述跟踪区更新完成消息中获取所述下行隧道信 息, 将携带有所述下行隧道信息的更新承载请求消息向所述其他服务网关发 送。
其中, 第一业务恢复单元包括:
第二接收单元, 用于接收用户设备发送的用以恢复分组域业务的消息; 第二更新承载请求单元,用于向所述服务网关发送指示恢复的更新承载请 求消息, 以恢复所述用户设备的分组交换域业务;接收所述服务网关发送的更 新 7|载响应;
第四承载建立单元, 用于建立无线承载, 获取下行隧道信息;
第二发送单元, 用于发送所述下行隧道信息给所述服务网关。
第一上下文单元,用于接收新移动管理实体发送的上下文请求消息; 向所 述新移动管理实体发送上下文响应消息,携带所述用户设备挂起的分组交换域 业务信息的上下文。
第一转发数据单元,用于接收所述新移动管理实体发送的转发数据请求消 息; 向旧服务网关发送转发数据请求消息,使所述旧服务网关将緩存的数据转 发到新的服务网关;接收所述旧服务网关发送的转发数据请求接受消息; 向所 述新移动管理实体发送转发数据请求接受消息。
其中, 第二接收单元包括:
第二服务请求消息单元, 用于接收用户设备发送的服务请求消息; 或跟第二踪区更新请求消息单元,用于接收用户设备发送的跟踪区更新请 求消息。
其中, 第四承载建立单元包括:
第五承载建立单元, 用于向所述演进基站发送初始化上下文请求消息, 建 立无线承载的空口资源,接收所述演进基站发送的初始化上下文响应消息,从 所述初始化上下文响应消息中获取所述下行隧道信息;
或第六承载建立单元, 用于向所述用户设备发送跟踪区更新接受消息;接 收所述用户设备发送的跟踪区更新完成消息 ,建立与所述用户设备之间的无线 承载, 从所述跟踪区更新完成消息中获取所述下行隧道信息。
其中, 第二发送单元包括:
第三发送单元,用于将携带有所述下行隧道信息的更新承载请求消息向所 述服务网关发送;
或第四发送单元,用于将所述下行隧道信息携带在所述指示恢复的更新承 载请求消息中向所述服务网关发送。
本发明实施例提供的移动管理实体实施例一,即相当于本发明实施例提供 的电路交换域业务返回传统网络的处理系统实施例中的第一移动管理实体。
本发明实施例提供的移动管理实体实施例二包括:
第二跟踪区更新请求处理单元,用于接收所述用户设备发送的跟踪区更新 请求消息;
第三上下文单元,用于向旧移动管理实体发送上下文请求消息;接收所述 旧移动管理实体发送的上下文响应消息,获取所述用户设备在所述旧移动管理 实体中记录的包含挂起的分组交换域业务信息的上下文;
第三业务恢复单元, 用于向服务网关发送用于恢复业务的请求, 以恢复所 述挂起的分组交换域业务;
第二位置更新单元, 用于与归属用户服务器发起位置更新流程,获取所述 用户设备的签约数据, 并向所述归属用户服务器注册;
第二下行隧道信息处理单元,用于向所述用户设备发送跟踪区更新接受消 息;接收所述用户设备发送的跟踪区更新完成消息, 建立与所述用户设备之间 的无线承载,从所述跟踪区更新完成消息中获取所述下行隧道信息,将携带有 所述下行隧道信息的更新承载请求消息向所述服务网关发送。
其中, 第三业务恢复单元包括:
第四业务恢复单元,用于向所述服务网关发送用于恢复业务的更新承载请 求; 接收所述服务网关发送的更新承载响应;
或, 第五业务恢复单元, 用于向新服务网关发送用于恢复业务的建立承载 请求;接收所述新服务网关发送的建立承载响应; 向所述旧移动管理实体发送 转发数据请求消息。
本发明实施例提供的演进基站实施例包括: 第二业务挂起命令单元, 用于接收移动管理实体发送的业务挂起命令消 第二连接释放单元, 用于将用户设备承载中緩存的数据转发到服务网关, 以使所述服务网关緩存所述数据。
第二连接释放单元, 用于向所述移动管理实体发送连接释放请求消息;接 收所述移动管理实体发送的连接释放命令消息;向所述移动管理实体发送连接 释放完成消息。
第七承载建立单元,用于接收所述移动管理实体发送的初始化上下文请求 消息, 建立无线承载的空口资源; 建立与用户设备之间的无线承载;
初始化上下文响应消息单元,用于向所述移动管理实体发送携带有下行隧 道信息的初始化上下文响应消息。
本发明实施例提供的服务网关实施例一包括:
第三接收单元,用于接收移动管理实体发送的指示挂起的更新承载请求消 挂起处理单元, 用于根据所述指示挂起的更新承载请求消息的指示, 清空 用户设备对应承载的下行隧道信息, 关闭阀门 , 记录所述挂起指示。
緩存单元, 用于当所述正在进行的分组域业务包含下行数据时,緩存所述 分组域业务下行数据。
第三转发数据单元, 用于接收演进基站转发的数据, 并緩存所述数据。 恢复处理单元,用于接收所述移动管理实体发送的指示恢复的更新承载请 求消息; 根据所述指示恢复的更新承载请求消息的指示, 开启阀门; 向所述移 动管理实体发送更新承载响应消息; 获取并更新下行隧道信息,发送緩存的下 行数据包。
第一流程发起单元,用于向策略和计费规则功能发起策略和计费控制规则 交互流程;
和 /或第三更新承载请求单元, 用于向分组数据网络网关发送指示挂起或 指示挂起的更新承载请求消息 ,以使所述分组数据网络网关向策略和计费规则 功能发起策略和计费控制规则交互流程。
第三转发数据单元, 用于接收旧移动管理实体发送的转发数据请求,将緩 存数据转发到新服务网关; 向所述旧移动管理实体发送转发数据接受消息。 本发明实施例提供的服务网关实施例一,即相当于本发明实施例提供的电 路交换域业务返回传统网络的处理系统实施例中的第一服务网关。
本发明实施例提供的服务网关实施例二包括:
第三变化处理单元, 用于接收所述移动管理实体发送的建立承载请求; 向 分组数据网络网关发送用于恢复业务的更新承载请求消息;接收所述分组数据 网络网关发送的更新承载响应消息;
第二下行隧道处理单元, 用于向所述移动管理实体发送建立承载响应消 息;接收所述移动管理实体发送的携带有所述下行隧道信息的更新承载请求消 息, 获取并更新所述下行隧道信息, 发送緩存的下行数据包。
緩存单元, 用于接收旧服务网关转发的緩存数据。
本发明实施例提供的分组数据网络网关实施例包括:
操作单元, 用于接收服务网关发送的更新承载请求;根据所述更新承载请 求的指示对阀门进行操作;
第二流程发起单元,用于向策略和计费规则功能发起策略和计费控制规则 交互流程;
更新承载响应单元, 用于向所述服务网关发送更新承载响应。
本发明实施例提供的电路交换域业务返回传统网络的处理系统实施例、用 户设备实施例、 演进基站实施例、移动管理实体实施例一、 移动管理实体实施 例二、服务网关实施例一、服务网关实施例二、 分组数据网络网关实施例的具 体操作方式可参考上文, 本发明实施例提供的业务挂起的方法实施例的描述, 在此不再详细描述。
以上对本发明所提供的一种业务挂起的方法、业务恢复的方法、 系统及设 阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思想;同时, 对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围 上均会有改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种业务挂起的方法, 其特征在于, 应用于包括至少一个分组域核心 网设备和至少一个电路域核心网设备的通信系统中,其中分组域核心网设备与 电路域核心网设备通过接口相连, 包括:
当驻扎在分组域的用户设备需要发起电路域业务时,所述分组域核心网设 备根据收到的指示保留所述用户设备的分组域网络资源;当所述用户设备当前 正在进行业务时, 则緩存发送给所述用户设备的下行业务数据和 /或终止发送 上行数据, 并且转换到电路域通信网络进行电路域业务。
2、 如权利要求 1所述的业务挂起的方法, 其特征在于, 所述分组域核心 网设备根据收到的指示保留所述用户设备的分组域网络资源包括:
所述用户设备在准备发起电路交换域业务时,向所述第一移动管理实体发 送业务挂起请求;
所述第一移动管理实体根据接收到的业务挂起请求 , 记录业务挂起指示, 保留所述用户设备的分组域网络资源,向第一服务网关发送指示挂起的更新承 载请求消息, 所述第一服务网关根据所述指示挂起的更新承载请求消息的指 示, 执行挂起操作。
3、 如权利要求 1所述的业务挂起的方法, 其特征在于, 所述分组域核心 网设备根据收到的指示保留所述用户设备的分组域网络资源包括:
所述第一移动管理实体在收到寻呼消息后 ,向所述用户设备发送终呼业务 指示消息, 记录业务挂起指示, 保留所述用户设备的分组域网络资源, 向第一 服务网关发送指示挂起的更新承载请求消息,所述第一服务网关根据所述指示 挂起的更新承载请求消息的指示, 执行挂起操作;
或, 所述第一移动管理实体在收到寻呼消息后, 向所述用户设备发送终呼 业务指示消息, 所述用户设备收到终呼业务指示消息后, 向所述第一移动管理 实体发送业务挂起请求, 所述第一移动管理实体根据接收到的业务挂起请求, 记录业务挂起指示,保留所述用户设备的分组域网络资源, 向第一服务网关发 送指示挂起的更新承载请求消息,所述第一服务网关根据所述指示挂起的更新 承载请求消息的指示, 执行挂起操作。
4、 如权利要求 2或 3所述的业务挂起的方法, 其特征在于, 所述执行挂 起操作包括:
清空用户设备对应承载的下行隧道信息, 关闭阀门, 记录业务挂起指示。
5、 如权利要求 4所述的业务挂起的方法, 其特征在于, 所述緩存发送给 所述用户设备的下行业务数据包括:
所述第一服务网关緩存发送给所述用户设备的下行业务数据;
和 /或所述第一移动管理实体向演进基站发送业务挂起命令; 所述演进基 站在收到所述业务挂起命令后 ,将緩存的所述用户设备的数据转发到所述第一 服务网关, 所述第一服务网关緩存所述转发的数据。
6、 如权利要求 4所述的业务挂起的方法, 其特征在于, 所述方法还包括: 所述第一服务网关在执行挂起操作之后,发送更新承载响应至所述第一移 动管理实体, 所述第一移动管理实体在收到所述更新承载响应后, 向所述用户 设备发送业务挂起响应消息, 所述用户设备在收到所述更新承载响应后,再转 换到电路域通信网络进行电路域业务。
7、 如权利要求 4所述的业务挂起的方法, 其特征在于, 所述方法还包括: 所述用户设备在所述电路域业务结束后, 重新接入分组域网络; 所述分组 域核心网设备恢复所述用户设备的分组域业务。
8、 如权利要求 7所述的业务挂起的方法, 其特征在于, 所述恢复所述用 户设备的分组域业务包括:
所述用户设备向所述第一移动管理实体发送用以恢复分组域业务的消息; 所述第一移动管理实体在收到所述用以恢复所述分组域业务的消息后,向 所述第一服务网关发送指示恢复的更新承载请求消息; 建立无线承载,获取下 行隧道信息 , 并发送给所述第一服务网关;
所述第一服务网关在收到所述指示恢复的更新承载请求消息后 ,根据所述 指示恢复的更新承载请求消息的指示, 开启阀门; 向所述移动管理实体发送更 新承载响应消息; 获取并更新下行隧道信息, 并根据所述下行隧道信息发送緩 存的下行数据包。
9、 如权利要求 8所述的业务挂起的方法, 其特征在于, 所述向所述第一 移动管理实体发送用以恢复所述分组域业务的消息包括:
向所述第一移动管理实体发送服务请求消息; 或向所述第一移动管理实体发送跟踪区更新请求消息。
10、 如权利要求 8所述的业务挂起的方法, 其特征在于, 所述建立无线承 载, 获取下行隧道信息包括:
所述第一移动管理实体向所述演进基站发送初始化上下文请求消息,建立 无线承载的空口资源;所述演进基站向所述第一移动管理实体发送携带所述下 行隧道信息的初始化上下文响应消息;
或所述第一移动管理实体向所述用户设备发送跟踪区更新接受消息;所述 用户设备向所述第一移动管理实体发送携带所述下行隧道信息的跟踪区更新 完成消息, 建立无线承载的空口资源。
11、 如权利要求 8所述的业务挂起的方法, 其特征在于, 所述发送下行隧 道信息给所述服务网关包括:
向所述第一服务网关发送携带有所述下行隧道信息的更新承载请求消息; 或将所述下行隧道信息携带在所述指示恢复的更新承载请求消息中向所 述第一服务网关发送。
12、 如权利要求 8所述的业务挂起的方法, 其特征在于, 所述指示挂起的 更新承载请求消息包括:
携带业务挂起指示的更新承载请求消息;
或携带关闭阀门指示的更新承载请求消息;
所述指示恢复的更新承载请求消息包括:
携带业务恢复指示的更新承载请求消息;
或携带开启阀门指示的更新承载请求消息。
13、如权利要求 8所述的业务挂起的方法,其特征在于,所述方法还包括: 向策略和计费规则功能发起策略和计费控制规则交互流程;
和 /或向分组数据网络网关发送指示挂起或指示恢复的更新承载请求消 息,以使所述分组数据网络网关向策略和计费规则功能发起策略和计费控制规 则交互流程。
14、 如权利要求 7所述的业务挂起的方法, 其特征在于, 所述恢复所述用 户设备的分组域业务包括:
所述用户设备向第二移动管理实体发送跟踪区更新请求消息; 所述第二移动管理实体收到所述跟踪区更新请求消息后,向所述第一移动 管理实体发送上下文请求消息;
所述第一移动管理实体向所述第二移动管理实体返回携带挂起的分组交 换域业务信息的上下文响应消息;
所述第二移动管理实体发送用于恢复业务的请求, 开启阀门;
所述第二移动管理实体与归属用户服务器发起位置更新流程,获取所述用 户设备的签约数据, 并向所述归属用户服务器注册;
所述第二移动管理实体向所述用户设备发送跟踪区更新接受消息;接收所 述用户设备发送的跟踪区更新完成消息, 建立与所述用户设备之间的无线承 载,从所述跟踪区更新完成消息中获取所述下行隧道信息,将携带有所述下行 隧道信息的更新承载请求消息向所述服务网关发送;
所述第一服务网关获取并更新下行隧道信息, 发送緩存的下行数据包。
15、 如权利要求 14所述的业务挂起的方法, 其特征在于, 所述第二移动 管理实体发送用于恢复业务的请求, 开启阀门包括:
所述第二移动管理实体向所述第一服务网关发送用于恢复业务的更新承 载请求; 所述第一服务网关根据所述指示恢复的更新承载请求消息的指示, 开 启阀门。
16、 如权利要求 14所述的业务挂起的方法, 其特征在于, 所述第二移动 管理实体发送用于恢复业务的请求, 开启阀门包括:
所述第二移动管理实体向第二服务网关发送用于恢复业务的建立承载请 求;
所述第二服务网关根据所述指示恢复的更新承载请求消息的指示,开启阀 门。
17、 如权利要求 16所述的业务挂起的方法, 其特征在于, 所述方法还包 括:
所述第二移动管理实体向所述第一移动管理实体发送转发数据请求消息; 所述第一移动管理实体向所述第一服务网关发送转发数据请求消息; 所述第一服务网关将緩存的数据转发到所述第二服务网关;
所述第二服务网关接收所述转发的数据。
18、如权利要求 7所述的业务挂起的方法,其特征在于,所述方法还包括: 在保留所述用户设备的分组域网络资源之后, 启动资源保留定时器,在所 述定时器超时后, 若所述用户设备未返回分组域网络执行任务, 则释放所述保 留资源。
19、一种业务恢复的方法,应用于包括至少一个分组域核心网设备和至少 一个电路域核心网设备的通信系统中,其中分组域核心网设备与电路域核心网 设备通过接口相连, 其特征在于, 所述方法包括:
当用户设备在电路域网络进行电路域业务结束, 重新接入分组域网络时, 判断所述用户设备是否有分组域业务被挂起,若有则所述分组域核心网设备恢 复所述用户设备的分组域业务。
20、 如权利要求 19所述的业务恢复的方法, 其特征在于, 所述恢复所述 用户设备的分组域业务包括:
所述用户设备向所述第一移动管理实体发送用以恢复分组域业务的消息; 所述第一移动管理实体在收到所述用以恢复所述分组域业务的消息后,向 所述第一服务网关发送指示恢复的更新承载请求消息; 建立无线承载,获取下 行隧道信息 , 并发送给所述第一服务网关;
所述第一服务网关在收到所述指示恢复的更新承载请求消息后 ,根据所述 指示恢复的更新承载请求消息的指示, 开启阀门; 向所述移动管理实体发送更 新承载响应消息; 获取并更新下行隧道信息, 并根据所述下行隧道信息发送緩 存的下行数据包。
21、 如权利要求 20所述的业务恢复的方法, 其特征在于, 所述向所述第 一移动管理实体发送用以恢复所述分组域业务的消息包括:
向所述第一移动管理实体发送服务请求消息;
或向所述第一移动管理实体发送跟踪区更新请求消息。
22、 如权利要求 20所述的业务挂起的方法, 其特征在于, 所述建立无线 承载, 获取下行隧道信息包括:
所述第一移动管理实体向所述演进基站发送初始化上下文请求消息,建立 无线承载的空口资源;所述演进基站向所述第一移动管理实体发送携带所述下 行隧道信息的初始化上下文响应消息; 或所述第一移动管理实体向所述用户设备发送跟踪区更新接受消息;所述 用户设备向所述第一移动管理实体发送携带所述下行隧道信息的跟踪区更新 完成消息, 建立无线承载的空口资源。
23、 如权利要求 20所述的业务恢复的方法, 其特征在于, 所述发送下行 隧道信息给所述服务网关包括:
向所述第一服务网关发送携带有所述下行隧道信息的更新承载请求消息; 或将所述下行隧道信息携带在所述指示恢复的更新承载请求消息中向所 述第一服务网关发送。
24、 如权利要求 20所述的业务恢复的方法, 其特征在于, 所述指示恢复 的更新承载请求消息包括:
携带业务恢复指示的更新承载请求消息;
或携带开启阀门指示的更新承载请求消息。
25、 如权利要求 19所述的业务恢复的方法, 其特征在于, 所述恢复所述 用户设备的分组域业务包括:
所述用户设备向第二移动管理实体发送跟踪区更新请求消息;所述第二移 动管理实体收到所述跟踪区更新请求消息后,向所述第一移动管理实体获取所 述用户设备的分组域业务;
所述第二移动管理实体发送用于恢复业务的请求, 开启阀门;
所述第二移动管理实体与归属用户服务器发起位置更新流程,获取所述用 户设备的签约数据, 并向所述归属用户服务器注册;
所述第二移动管理实体建立与所述用户设备之间的无线承载,获取下行隧 道信息, 将携带有所述下行隧道信息的更新承载请求消息向所述服务网关发 送;
所述第一服务网关获取并更新下行隧道信息 , 发送緩存的下行数据包。
26、 如权利要求 25所述的业务恢复的方法, 其特征在于, 所述第二移动 管理实体发送用于恢复业务的请求, 开启阀门包括:
所述第二移动管理实体向所述第一服务网关发送用于恢复业务的更新承 载请求; 所述第一服务网关根据所述指示恢复的更新承载请求消息的指示, 开 启阀门。
27、 如权利要求 25所述的业务恢复的方法, 其特征在于, 所述第二移动 管理实体发送用于恢复业务的请求, 开启阀门包括:
所述第二移动管理实体向第二服务网关发送用于恢复业务的建立承载请 求;
所述第二服务网关根据所述指示恢复的更新承载请求消息的指示,开启阀 门。
28、 如权利要求 27所述的业务恢复的方法, 其特征在于, 所述方法还包 括:
所述第二移动管理实体向所述第一移动管理实体发送转发数据请求消息; 所述第一移动管理实体向所述第一服务网关发送转发数据请求消息; 所述第一服务网关将緩存的数据转发到所述第二服务网关;
所述第二服务网关接收所述转发的数据。
29、 如权利要求 19到 28任一项所述的业务恢复的方法, 其特征在于, 所 述方法还包括:
向策略和计费规则功能发起策略和计费控制规则交互流程;
和 /或向分组数据网络网关发送指示恢复的更新承载请求消息, 以使所述 分组数据网络网关向策略和计费规则功能发起策略和计费控制规则交互流程。
30、 一种业务挂起的系统, 其特征在于, 所述系统包括用户设备、 第一移 动管理实体、 第一服务网关, 其中:
所述第一移动管理实体,用于在驻扎在分组域的用户设备需要发起电路域 业务时,根据收到的指示保留所述用户设备的分组域网络资源;发送指示挂起 的更新承载请求消息;
所述第一服务网关,用于接收所述移动管理实体发送的指示挂起的更新承 载请求消息,根据所述指示挂起的更新承载请求消息的指示,保留所述用户设 备的分组域网络资源;
所述用户设备,用于停止当前正在进行的分组域业务,转换到电路域网络。
31、 一种业务恢复的系统, 其特征在于, 所述系统包括用户设备、 第一移 动管理实体、 第一服务网关, 其中:
所述第一移动管理实体,用于在用户设备在电路域网络进行电路域业务结 束, 重新接入分组域网络时, 判断所述用户设备是否有分组域业务被挂起, 若 有则恢复所述用户设备的分组域业务资源,并向所述第一服务网关发送指示恢 复的消息;
所述第一服务网关,用于接收所述第一移动管理实体发送的指示恢复的消 息, ^^据所述指示恢复的消息的指示, 恢复所述用户设备的分组域网络资源。
32、 一种用户设备, 其特征在于, 所述用户设备包括:
业务挂起请求单元, 用于在准备进行电路交换域业务时, 向移动管理实体 发送业务挂起请求, 以保留所述用户设备的分组域网络资源,緩存所述分组域 业务下行数据;
第一接入单元,用于停止当前正在进行的分组域业务,转换到电路域网络。
33、 如权利要求 32所述的用户设备, 其特征在于, 所述业务挂起请求单 元包括:
第一业务挂起请求单元, 用于在准备发起电路交换域业务时, 向移动管理 实体发送业务挂起请求;
或第二业务挂起请求单元,用于在收到所述移动管理实体发送的终呼业务 指示消息时, 向移动管理实体发送业务挂起请求。
34、 如权利要求 32或 33所述的用户设备, 其特征在于, 所述用户设备还 包括:
第二接入单元, 用于在所述电路交换域业务结束后,选择长期演进计划小 区, 重新接入分组域网络;
第一发送单元, 用于向所述移动管理实体发送消息, 以恢复分组交换域业 务;
第一承载建立单元, 用于建立无线承载。
35、 如权利要求 34所述的用户设备, 其特征在于, 所述第一发送单元包 括:
第一服务请求消息单元, 用于向所述移动管理实体发送服务请求消息; 或第一跟踪区更新请求消息单元,用于向所述移动管理实体发送跟踪区更 新请求消息。
36、 如权利要求 34所述的用户设备, 其特征在于, 所述第一承载建立单 元包括:
第二承载建立单元, 用于建立与演进基站之间的无线承载;
第三承载建立单元,用于接收所述移动管理实体发送的跟踪区更新接受消 息; 向所述移动管理实体发送跟踪区更新完成消息, 建立与所述移动管理实体 之间的无线承载。
37、 一种移动管理实体, 其特征在于, 所述移动管理实体包括: 第一资源保留单元,用于在驻扎在分组域的用户设备需要发起电路域业务 时, 根据收到的指示保留所述用户设备的分组域网络资源;
第一更新承载请求单元,用于向服务网关发送指示挂起的更新承载请求消 息, 请求挂起所述用户设备正在执行的分组交换域业务;
第一接收单元, 用于接收所述服务网关返回的更新承载响应。
38、 如权利要求 37所述的移动管理实体, 其特征在于, 所述移动管理实 体还包括:
第一判断单元, 用于根据接收到的用户设备发送的业务挂起请求, 判断驻 扎在分组域的用户设备需要发起电路域业务;
或第二判断单元, 用于在向所述用户设备发送终呼业务指示消息后, 判断 驻扎在分组域的用户设备需要发起电路域业务。
39、 如权利要求 37所述的移动管理实体, 其特征在于, 所述移动管理实 体还包括:
第一业务挂起命令单元, 用于向演进基站发送业务挂起命令。
40、 如权利要求 37、 38或 39所述的移动管理实体, 其特征在于, 所述移 动管理实体还包括:
第一业务恢复单元, 用于在所述用户设备电路域业务结束后, 重新接入分 组域网络时, 恢复所述用户设备的分组域业务。
41、 如权利要求 40所述的移动管理实体, 其特征在于, 所述第一业务恢 复单元包括:
第二接收单元, 用于接收用户设备发送的用以恢复分组域业务的消息; 第二更新承载请求单元,用于向所述服务网关发送指示恢复的更新承载请 求消息, 以恢复所述用户设备的分组交换域业务;接收所述服务网关发送的更 新 7?载响应;
第四承载建立单元, 用于建立无线承载, 获取下行隧道信息;
第二发送单元, 用于发送所述下行隧道信息给所述服务网关。
42、 如权利要求 41所述的移动管理实体, 其特征在于, 所述第二接收单 元包括:
第二服务请求消息单元, 用于接收用户设备发送的服务请求消息; 或跟第二踪区更新请求消息单元,用于接收用户设备发送的跟踪区更新请 求消息。
43、 如权利要求 41所述的移动管理实体, 所述第四承载建立单元包括: 第五承载建立单元, 用于向所述演进基站发送初始化上下文请求消息, 建 立无线承载的空口资源,接收所述演进基站发送的初始化上下文响应消息,从 所述初始化上下文响应消息中获取所述下行隧道信息;
或第六承载建立单元, 用于向所述用户设备发送跟踪区更新接受消息;接 收所述用户设备发送的跟踪区更新完成消息,建立与所述用户设备之间的无线 承载, 从所述跟踪区更新完成消息中获取所述下行隧道信息。
44、 如权利要求 43所述的移动管理实体, 其特征在于, 所述第二发送单 元包括:
第三发送单元,用于将携带有所述下行隧道信息的更新承载请求消息向所 述服务网关发送;
或第四发送单元,用于将所述下行隧道信息携带在所述指示恢复的更新承 载请求消息中向所述服务网关发送。
45、 如权利要求 40所述的移动管理实体, 其特征在于, 所述第一业务恢 复单元包括:
第一上下文单元,用于接收新移动管理实体发送的上下文请求消息; 向所 述新移动管理实体发送上下文响应消息,携带所述用户设备挂起的分组交换域 业务信息的上下文。
46、 如权利要求 45所述的移动管理实体, 其特征在于, 所述第一业务恢 复单元还包括:
第一转发数据单元,用于接收所述新移动管理实体发送的转发数据请求消 息; 向旧服务网关发送转发数据请求消息,使所述旧服务网关将緩存的数据转 发到新的服务网关;接收所述旧服务网关发送的转发数据请求接受消息; 向所 述新移动管理实体发送转发数据请求接受消息。
47、 如权利要求 40所述的移动管理实体, 其特征在于, 所述移动管理实 体还包括:
定时器, 用于在保留所述用户设备的分组域网络资源之后, 启动资源保留 定时器, 在所述定时器超时后, 若所述用户设备未返回分组域网络执行任务, 则释放所述保留资源。
48、 如权利要求 40所述的移动管理实体, 其特征在于, 所述移动管理实 体还包括:
第一跟踪区更新请求处理单元,用于接收其他用户设备发送的跟踪区更新 请求消息;
第二上下文单元,用于向其他移动管理实体发送上下文请求消息;接收所 述其他移动管理实体发送的上下文响应消息,获取所述其他用户设备在所述其 他移动管理实体中记录的包含挂起的分组交换域业务信息的上下文;
第二业务恢复单元, 用于向其他服务网关发送用于恢复业务的请求, 以恢 复所述挂起的分组交换域业务;
第一位置更新单元, 用于与归属用户服务器发起位置更新流程,获取所述 其他用户设备的签约数据, 并向所述归属用户服务器注册;
第一下行隧道信息处理单元,用于向所述其他用户设备发送跟踪区更新接 受消息;接收所述其他用户设备发送的跟踪区更新完成消息, 建立与所述其他 用户设备之间的无线承载 ,从所述跟踪区更新完成消息中获取所述下行隧道信 息, 将携带有所述下行隧道信息的更新承载请求消息向所述其他服务网关发 送。
49、 一种移动管理实体, 其特征在于, 所述移动管理实体包括: 第二跟踪区更新请求处理单元 ,用于接收所述用户设备发送的跟踪区更新 请求消息;
第三上下文单元,用于向旧移动管理实体发送上下文请求消息;接收所述 旧移动管理实体发送的上下文响应消息,获取所述用户设备在所述旧移动管理 实体中记录的包含挂起的分组交换域业务信息的上下文;
第三业务恢复单元, 用于向服务网关发送用于恢复业务的请求, 以恢复所 述挂起的分组交换域业务;
第二位置更新单元, 用于与归属用户服务器发起位置更新流程,获取所述 用户设备的签约数据, 并向所述归属用户服务器注册;
第二下行隧道信息处理单元,用于向所述用户设备发送跟踪区更新接受消 息;接收所述用户设备发送的跟踪区更新完成消息, 建立与所述用户设备之间 的无线承载,从所述跟踪区更新完成消息中获取所述下行隧道信息,将携带有 所述下行隧道信息的更新承载请求消息向所述服务网关发送。
50、 如权利要求 49所述的移动管理实体, 其特征在于, 所述第三业务恢 复单元包括:
第四业务恢复单元,用于向所述服务网关发送用于恢复业务的更新承载请 求; 接收所述服务网关发送的更新承载响应;
或, 第五业务恢复单元, 用于向新服务网关发送用于恢复业务的建立承载 请求;接收所述新服务网关发送的建立承载响应; 向所述旧移动管理实体发送 转发数据请求消息。
51、 一种演进基站, 其特征在于, 所述演进基站包括:
第二业务挂起命令单元, 用于接收移动管理实体发送的业务挂起命令消 第二转发数据单元, 用于将用户设备承载中緩存的数据转发到服务网关, 以使所述服务网关緩存所述数据。
52、 如权利要求 51所述的演进基站, 其特征在于, 所述演进基站还包括: 第二连接释放单元, 用于向所述移动管理实体发送连接释放请求消息;接 收所述移动管理实体发送的连接释放命令消息;向所述移动管理实体发送连接 释放完成消息。
53、 如权利要求 51或 52所述的演进基站, 其特征在于, 所述演进基站还 包括:
第七承载建立单元,用于接收所述移动管理实体发送的初始化上下文请求 消息, 建立无线承载的空口资源; 建立与用户设备之间的无线承载; 初始化上下文响应消息单元,用于向所述移动管理实体发送携带有下行隧 道信息的初始化上下文响应消息。
54、 一种服务网关, 其特征在于, 所述服务网关包括:
第三接收单元,用于接收移动管理实体发送的指示挂起的更新承载请求消 挂起处理单元, 用于根据所述指示挂起的更新承载请求消息的指示, 清空 用户设备对应承载的下行隧道信息, 关闭阀门 , 记录所述挂起指示。
55、 如权利要求 54所述的服务网关, 其特征在于, 所述服务网关还包括: 緩存单元, 用于当所述正在进行的分组域业务包含下行数据时,緩存所述 分组域业务下行数据。
56、 如权利要求 54所述的服务网关, 其特征在于, 所述服务网关还包括: 第三转发数据单元, 用于接收演进基站转发的数据, 并緩存所述数据。
57、 如权利要求 54、 55或 56所述的服务网关, 其特征在于, 所述服务网 关还包括:
恢复处理单元,用于接收所述移动管理实体发送的指示恢复的更新承载请 求消息; 根据所述指示恢复的更新承载请求消息的指示, 开启阀门; 向所述移 动管理实体发送更新承载响应消息; 获取并更新下行隧道信息,发送緩存的下 行数据包。
58、 如权利要求 57所述的服务网关, 其特征在于, 所述服务网关还包括: 第一流程发起单元,用于向策略和计费规则功能发起策略和计费控制规则 交互流程;
和 /或第三更新承载请求单元, 用于向分组数据网络网关发送指示挂起或 指示挂起的更新承载请求消息 ,以使所述分组数据网络网关向策略和计费规则 功能发起策略和计费控制规则交互流程。
59、 如权利要求 54、 55或 56所述的服务网关, 其特征在于, 所述服务网 关还包括:
第三转发数据单元, 用于接收旧移动管理实体发送的转发数据请求,将緩 存数据转发到新服务网关; 向所述旧移动管理实体发送转发数据接受消息。
60、 一种服务网关, 其特征在于, 所述服务网关包括: 第三变化处理单元, 用于接收所述移动管理实体发送的建立承载请求; 向 分组数据网络网关发送用于恢复业务的更新承载请求消息;接收所述分组数据 网络网关发送的更新承载响应消息;
第二下行隧道处理单元, 用于向所述移动管理实体发送建立承载响应消 息;接收所述移动管理实体发送的携带有所述下行隧道信息的更新承载请求消 息, 获取并更新所述下行隧道信息, 发送緩存的下行数据包。
61、 如权利要求 60所述的服务网关, 其特征在于, 所述服务网关还包括: 緩存单元, 用于接收旧服务网关转发的緩存数据。
62、 一种分组数据网络网关, 其特征在于, 所述分组数据网络网关包括: 操作单元, 用于接收服务网关发送的更新承载请求;根据所述更新承载请 求的指示对阀门进行操作;
第二流程发起单元,用于向策略和计费规则功能发起策略和计费控制规则 交互流程;
更新承载响应单元, 用于向所述服务网关发送更新承载响应。
PCT/CN2009/070276 2008-01-25 2009-01-22 业务挂起的方法、业务恢复的方法、系统及设备 WO2009100664A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810007021.0 2008-01-25
CN2008100070210A CN101494848B (zh) 2008-01-25 2008-01-25 业务挂起的方法、业务恢复的方法、系统及设备

Publications (1)

Publication Number Publication Date
WO2009100664A1 true WO2009100664A1 (zh) 2009-08-20

Family

ID=40925194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/070276 WO2009100664A1 (zh) 2008-01-25 2009-01-22 业务挂起的方法、业务恢复的方法、系统及设备

Country Status (2)

Country Link
CN (1) CN101494848B (zh)
WO (1) WO2009100664A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107580335A (zh) * 2011-04-29 2018-01-12 瑞典爱立信有限公司 移动终止呼叫改进

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102056142B (zh) * 2009-11-09 2014-07-02 中兴通讯股份有限公司 一种建立本地ip访问下行数据通道的方法及系统
WO2011082552A1 (zh) * 2010-01-11 2011-07-14 华为技术有限公司 资源挂起的实现方法、装置及系统
JP4841675B2 (ja) * 2010-02-09 2011-12-21 株式会社エヌ・ティ・ティ・ドコモ 移動通信システム、ネットワーク装置及び移動通信方法
CN105451206B (zh) * 2010-04-14 2019-04-05 华为技术有限公司 eMPS在CSFB机制中的处理方法、装置及系统
WO2011127652A1 (zh) * 2010-04-14 2011-10-20 华为技术有限公司 Emps在csfb机制中的处理方法、装置及系统
EP2571299B1 (en) 2010-05-10 2018-01-03 Huawei Technologies Co., Ltd. Method, device and system for processing short messages
CN101835246A (zh) * 2010-05-12 2010-09-15 华为终端有限公司 多模终端选网的执行方法及多模终端
CN102405683B (zh) * 2010-08-20 2014-04-30 华为技术有限公司 一种承载处理方法、系统及移动管理网元
CN102158919B (zh) * 2011-03-10 2013-10-09 华为技术有限公司 语音回落的切换方法及装置
CN102724703B (zh) * 2011-03-30 2016-08-03 华为技术有限公司 数据传输方法以及系统
CN102740384A (zh) * 2011-04-06 2012-10-17 中兴通讯股份有限公司 一种隧道信息上报的方法和系统
CN102761825B (zh) * 2011-04-25 2017-11-07 中兴通讯股份有限公司 信息通知方法及基站、业务获取方法、系统及ue
CN102769932B (zh) * 2011-05-05 2015-07-08 华为技术有限公司 用于电路域回退中数据传输的方法和装置
WO2012167467A1 (zh) * 2011-07-06 2012-12-13 华为技术有限公司 处理电路交换域业务返回传统网络的方法、移动管理实体和系统
CN103517454A (zh) * 2012-06-27 2014-01-15 联发科技股份有限公司 增强信令连接释放指示处理方法
CN107613571B (zh) * 2012-07-18 2021-05-18 华为技术有限公司 一种数据连接管理的方法、装置及系统
CN103582172B (zh) * 2012-07-31 2018-03-27 中兴通讯股份有限公司 挂起方法、装置及系统
CN102833798B (zh) * 2012-08-20 2016-03-30 中国联合网络通信集团有限公司 业务切换处理方法、装置和系统
CN103686939B (zh) * 2012-09-25 2017-07-21 华为终端有限公司 触发终端的方法及相关设备
CN103002531B (zh) * 2012-12-17 2016-01-13 东莞宇龙通信科技有限公司 多模单待移动终端和通信方法
CN103607741A (zh) * 2013-11-18 2014-02-26 中国联合网络通信集团有限公司 业务切换方法、移动交换中心和业务切换系统
CN103607783B (zh) * 2013-12-06 2017-04-26 中国联合网络通信集团有限公司 一种csfb呼叫建立方法及用户设备
CN105027660B (zh) * 2013-12-12 2019-12-17 华为技术有限公司 一种ps业务恢复方法、msc/vlr及mme
EP3503656A1 (en) 2014-03-14 2019-06-26 Huawei Technologies Co., Ltd. Uplink data transmission method, apparatus and computer program product therefor
CN104302012A (zh) * 2014-09-05 2015-01-21 中国联合网络通信集团有限公司 一种电路域回落语音呼叫建立方法及装置
WO2017000312A1 (zh) * 2015-07-02 2017-01-05 华为技术有限公司 一种处理下行数据的方法和设备
CN106714133B (zh) * 2015-08-14 2020-09-15 中兴通讯股份有限公司 网关的恢复处理方法及装置
CN115175372A (zh) * 2016-01-08 2022-10-11 北京三星通信技术研究有限公司 控制ue上下文和ue连接的方法和设备
CN106961747A (zh) * 2016-01-12 2017-07-18 展讯通信(上海)有限公司 基站及配置连接恢复信息的方法、连接恢复的方法及装置
CN107087289B (zh) * 2016-02-16 2020-07-31 大唐移动通信设备有限公司 一种电路域回落处理方法及移动管理实体设备
CN107154901B (zh) * 2016-03-03 2021-07-06 中兴通讯股份有限公司 数据传输的控制方法及系统、数据传输方法及装置
CN105979609B (zh) * 2016-04-27 2019-11-12 珠海市魅族科技有限公司 一种分组数据业务控制方法及装置
CN107580310A (zh) * 2016-07-05 2018-01-12 中兴通讯股份有限公司 分组交换ps数据业务的处理方法、装置、终端及mme
CN107635222B (zh) * 2016-07-05 2022-10-28 中兴通讯股份有限公司 分组交换数据业务的处理方法、终端、mme及pgw
CN110166962B (zh) * 2018-02-14 2021-01-05 华为技术有限公司 一种规则管理方法及设备
CN108990124B (zh) * 2018-09-26 2021-06-29 中国联合网络通信集团有限公司 语音通话与数据业务切换方法及装置
CN112218283B (zh) * 2019-07-12 2023-06-02 中国电信股份有限公司 业务挂起和恢复方法和系统、多卡终端和存储介质
CN111698146B (zh) * 2020-06-10 2022-05-20 深圳市慧联通信技术有限公司 一种低功耗广域网的即时通信方法及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1408183A (zh) * 1999-07-30 2003-04-02 艾利森公司 用于将终端从分组交换业务转换到电路交换业务的方法和系统
CN1997225A (zh) * 2006-06-26 2007-07-11 华为技术有限公司 移动通信系统中电路域信令的传输方法
US20070211693A1 (en) * 2003-12-19 2007-09-13 Jani Hirsimaki Control Of A Suspend State

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7920554B2 (en) * 2001-07-30 2011-04-05 Intel Corporation Supporting both packet and circuit-based wireless networks
CN1889756B (zh) * 2005-07-16 2010-05-12 华为技术有限公司 双模终端在分组域和电路域间切换的方法
CN1881958B (zh) * 2005-08-08 2011-12-07 华为技术有限公司 一种用户设备从分组域向电路域切换的方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1408183A (zh) * 1999-07-30 2003-04-02 艾利森公司 用于将终端从分组交换业务转换到电路交换业务的方法和系统
US20070211693A1 (en) * 2003-12-19 2007-09-13 Jani Hirsimaki Control Of A Suspend State
CN1997225A (zh) * 2006-06-26 2007-07-11 华为技术有限公司 移动通信系统中电路域信令的传输方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107580335A (zh) * 2011-04-29 2018-01-12 瑞典爱立信有限公司 移动终止呼叫改进
US10652945B2 (en) 2011-04-29 2020-05-12 Telefonaktiebolaget Lm Ericsson (Publ) Mobile terminated call improvements
CN107580335B (zh) * 2011-04-29 2021-03-12 瑞典爱立信有限公司 移动终止呼叫改进

Also Published As

Publication number Publication date
CN101494848B (zh) 2013-08-07
CN101494848A (zh) 2009-07-29

Similar Documents

Publication Publication Date Title
WO2009100664A1 (zh) 业务挂起的方法、业务恢复的方法、系统及设备
KR101044685B1 (ko) 리소스를 구축하고 삭제하기 위한 방법 및 네트워크 장비
RU2405281C2 (ru) Хэндовер в сетях связи
CN108617013B (zh) 用于无线网络系统之间的数据传送控制的方法及设备
EP2146539A1 (en) Method for bearer suspending, method for bearer resuming, and gateway agent
WO2009100609A1 (zh) 一种单无线信道语音业务连续性的域切换方法
WO2011003354A1 (zh) 移动网络用户面数据路由的方法、装置和系统
WO2011034175A1 (ja) 通信システムと通信制御方法
WO2008019631A1 (fr) Procédé et système de transfert de matériel d'utilisateur dans un système de communication mobile
WO2010130094A1 (zh) 用户设备寻呼方法、装置和系统
WO2009094871A1 (fr) Procédé pour purger des données de la mémoire tampon d'une passerelle de desserte
WO2011000318A1 (zh) 切换控制的方法和设备
CN107277868B (zh) 一种电路域回退方法和设备
WO2010124551A1 (zh) 在多接入场景下分组数据网络网关标识的保存方法及系统
WO2009121237A1 (zh) 一种激活状态下用户设备跨接入网切换的实现方法
WO2011153750A1 (zh) 一种用户数据的同步方法和系统
WO2009097733A1 (zh) 分组域业务处理方法、装置及系统
WO2009089790A1 (fr) Procédé pour l'acquisition du type d'un service support et pour la commutation entre réseaux supports pour des terminaux
WO2011026407A1 (zh) 一种本地网际协议访问连接移动性支持的方法及系统
WO2010069272A1 (zh) 一种网络切换的资源处理方法及装置
WO2009062392A1 (fr) Procédé de transfert de système, système de communication et entité pcrf
WO2015062065A1 (zh) 一种与分组数据网络建立连接的装置、设备及方法
WO2011143997A1 (zh) 一种实现路由选择的方法和装置
WO2014059647A1 (zh) 一种数据域业务处理方法、装置及系统
WO2011023125A1 (zh) 释放连接的方法、装置及系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09711330

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09711330

Country of ref document: EP

Kind code of ref document: A1