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WO2016119441A1 - 业务迁移方法及装置 - Google Patents

业务迁移方法及装置 Download PDF

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Publication number
WO2016119441A1
WO2016119441A1 PCT/CN2015/087086 CN2015087086W WO2016119441A1 WO 2016119441 A1 WO2016119441 A1 WO 2016119441A1 CN 2015087086 W CN2015087086 W CN 2015087086W WO 2016119441 A1 WO2016119441 A1 WO 2016119441A1
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Prior art keywords
network
terminal
service
indication message
message
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PCT/CN2015/087086
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English (en)
French (fr)
Inventor
贺美芳
黄河
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中兴通讯股份有限公司
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Publication of WO2016119441A1 publication Critical patent/WO2016119441A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic

Definitions

  • the present invention relates to the field of communications, and in particular to a service migration method and apparatus.
  • LTE Long Term Evolution
  • LTE Advanced enhanced LTE
  • WLAN wireless local area network
  • IEEE 802.11 the Institute of Electrical and Electronics Engineers 802.11 standard
  • the technical specifications proposed by the Wi-Fi Alliance are the most widely used. Therefore, the WiFi network is often equated with the WLAN network based on the IEEE 802.11 standard. In the case of no confusion, the following WiFi module is also used. To describe the WLAN-enabled wireless transceiver and processing module in the network node.
  • the 3GPP SA2 adopts the Access Network Discovery and Selection Functions (ANDSF) scheme, and provides a mode for selecting a target access network for the terminal according to the operator policy.
  • ANDSF Access Network Discovery and Selection Functions
  • the 3GPP R10 defines the ANDSF standard.
  • the ANDSF acts as an access anchor to implement intelligent network selection. Through the interaction between the network and the terminal, the network access is effectively offloaded, which is in line with the future multi-network coordinated operation direction.
  • the ANDSF formulates policies based on information such as network load, terminal capabilities, and user subscriptions to help end users select the best access network standard and implement coordinated operation of multiple access modes.
  • ANDSF can be deployed separately or in combination with other network elements. At present, the mainstream view of the industry is that the ANDSF can be deployed on a Policy Control and Charging (PCC) device.
  • PCC Policy Control and Charging
  • ANDSF is a WLAN interworking scheme based on the core network, and does not consider the impact on the access network. In addition, because the ANDSF is a relatively static scheme, it can not adapt to the dynamic changes of network load and channel quality.
  • the 3GPP access network group also conducted a WLAN interworking discussion. In R12 WLAN/3GPP wireless interoperation, a mechanism for performing WLAN offloading rules and triggering is introduced.
  • the core network mechanism and the auxiliary information mechanism from the radio access network cannot provide the network side with real-time use of load and channel conditions to consolidate the use of radio resources.
  • data from the same bearer cannot be served on both 3GPP and WLAN links. Therefore, the need for WLAN integration with 3GPP networks was reintroduced at the RAN65 subliminal.
  • the WLAN of the Radio Access Network is integrated with the 3GPP network.
  • the WLAN and the 3GPP network are closely coupled, similar to carrier aggregation. And dual connectivity, providing better control and utilization of resources for the dual system for the overall system.
  • Tight integration and aggregation at the wireless layer allows more real-time joint scheduling of WLAN and radio resources of the 3GPP network, thus improving user quality of service (QoS) and overall system capacity.
  • QoS quality of service
  • each link scheduling decision can be made to the level of each packet.
  • the user plane is anchored to a reliable LTE network and can be improved by rolling back to the LTE network.
  • the WLAN and 3GPP network tightly coupled can be applied to the co-location scenario (the RAN layer integration operation is performed between the enb and the Access Point (AP) through the internal interface) and the non-same collaboration scenario (between the enb and the AP)
  • the RAN layer integration operation is completed through an external interface, which is essentially similar to 3gpp carrier aggregation and dual connectivity, respectively.
  • the same-ground cooperation method is applied to the WLAN and the 3GPP integrated base station site as shown in FIG. 1.
  • FIG. 1 is a schematic diagram of the same-cooperative cooperation of the WLAN and the 3GPP network in the related art, or the WLAN and the 3GPP network connected by the ideal loop. 2, FIG.
  • FIG. 2 is a schematic diagram of the co-local cooperation of the WLAN and the 3GPP network in the related art.
  • the non-co-location cooperation scheme is applied to the scenario of the independent WLAN AP layout in most cases, as shown in FIG. 3,
  • FIG. 3 is a schematic diagram of a non-co-located cooperation of a WLAN and a 3GPP network in a related art.
  • wlan offloading schemes There are four types of wlan offloading schemes that are closely coupled to the WLAN and the 3GPP network: the Packet Data Convergence Protocol (PDCP) layer splitting, the PDCP layer shunting of the dual connectivity architecture, and the radio link control (Radio Link Control). , referred to as RLC) layer shunting, media access control (Media Access Control, MAC for short) layer shunt.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • media access control Media Access Control
  • the simplified architecture PDCP layer is offloaded, and the WLAN offload of the downlink data stream is completed in the PDCP layer of the 3GPP access network, and then transmitted to the PDCP adapter, which completes the conversion of the 3gpp PDCP protocol data unit to the WLAN MAC protocol data unit.
  • the wireless air interface of the WLAN is sent to the MAC layer of the WLAN of the terminal, and then the adapter of the PDCP is sent to the terminal, and the adapter of the terminal completes the WLAN.
  • the conversion of the protocol data unit of the MAC protocol data unit to the PDCP is then sent to the PDCP entity of the user equipment (User Equipment, UE for short).
  • the PDCP entity sends the service data unit of the PDCP to the corresponding application service.
  • the upstream data stream is a PDCP entity that is sent from the PDCP entity of the terminal to the 3GPP access network, similar to the downlink process, but with the opposite direction.
  • the so-called dual-connection architecture PDCP layer is offloaded, and the data is divided twice.
  • the PDCP layer of the 3GPP access network distributes the data stream to the radio link control layer of the small cell of the secondary base station, and then the second downlink data in the MAC of the small cell.
  • the traffic offloading that is, the WLAN offloading to the MAC adapter, the adapter completes the conversion of the protocol data unit of the 3gpp MAC to the MAC protocol data unit of the WLAN, and sends the wireless air interface of the WLAN to the MAC layer of the WLAN of the terminal, and then sends the MAC layer to the terminal.
  • the adapter of the MAC completes the conversion of the protocol data unit of the WLAN to the protocol data unit of the MAC, and then sends the MAC entity to the UE, and the user data unit is sent to the corresponding application service according to the 3GPP air interface protocol.
  • the upstream data flow is similar to the downstream process, but in the opposite direction.
  • the so-called RLC layer is offloaded, and the WLAN offload of the downlink data stream is completed at the RLC layer of the 3GPP access network, and then transmitted to the RLC adapter, which completes the conversion of the protocol data unit of the 3Gpp RLC protocol data unit to the WLAN MAC protocol data unit, through the WLAN.
  • the wireless air interface is sent to the MAC layer of the WLAN of the terminal, and then the adapter of the RLC sent to the terminal, the adapter of the terminal completes the conversion of the protocol data unit of the WLAN MAC protocol data unit to the RLC, and then sends the signal to the PDCP entity of the UE, and finally The PDCP entity sends the service data unit of the PDCP to the corresponding application service.
  • the upstream data stream is a PDCP entity that is sent from the PDCP entity of the terminal to the 3GPP access network, similar to the downlink process, but with the opposite direction.
  • the so-called MAC layer offloading the WLAN offload of the downlink data stream is completed at the MAC layer of the 3GPP access network, and then transmitted to the MAC adapter, which completes the conversion of the protocol data unit of the 3gpp MAC to the MAC protocol data unit of the WLAN, through the WLAN
  • the wireless air interface is sent to the MAC layer of the WLAN of the terminal, and then the adapter of the MAC sent to the terminal, the adapter of the terminal completes the conversion of the MAC protocol data unit of the WLAN to the protocol data unit of the MAC, and then transmits to the PDCP entity of the UE, and finally The PDCP entity sends the service data unit of the PDCP to the corresponding application service.
  • the upstream data stream is a PDCP entity that is sent from the PDCP entity of the terminal to the 3GPP access network, similar to the downlink process, but with the opposite direction.
  • the user can manually perform the WIFI switch, or the WIFI switch can be performed through the core network and the wireless network side mechanism and the policy intelligent manner.
  • the intelligent WIFI switch provides network discovery information (such as the WID SSID) near the current location according to the ANDSF, and starts to open the WIFI switch to complete related mechanisms and strategies. It will not waste power when there are no hot spots available nearby, and will not forget to manually open WIFI in the available WIFI hotspots and waste valuable traffic.
  • the core network ANDSF affects that when the user performs the tight coupling operation between the WLAN and the 3GPP network, the user will manually shut down the WIFI, or the policy of receiving the core network ANDSF requires the WLAN network to be closed. At this time, the 3GPP network should not split the data to the WLAN network.
  • the WLAN network data stream is unloaded, but the 3GPP network cannot know that the WIFI of the user side is turned off, and the data is further distributed to the WLAN network, causing delay and loss of data packets, and even affecting the user experience. Therefore, in the related art, there is a problem that the packet is delayed and lost due to the fact that the second network cannot know the usage of the first network in the user equipment.
  • the embodiment of the present invention provides a service migration method and device, so as to at least solve the problem that the data packet is delayed and lost due to the second network being unable to know the usage of the first network in the user equipment.
  • a service migration method including: determining that a service of a terminal in a first network needs to be migrated; and reporting an uninstallation indication message to a second network, where the uninstall indication message is used by And requesting to migrate part of services or all services of the terminal in the first network to the second network.
  • the method further includes: receiving a network connection reconfiguration message returned by the second network according to the uninstall indication message; reconfiguring according to the network connection The message releases resources between the terminal and the first network.
  • the uninstallation indication message includes at least one of the following information: a reason for the uninstallation, a radio bearer identifier RB ID corresponding to the service to be migrated, and/or a logical channel identifier LCHID, and a service corresponding to the service to be migrated.
  • a service set identifier SSID and/or a basic service set identifier BSSID of the point a measurement result of the terminal to the first network, and/or a measurement result of the second network, a terminal identifier of the terminal, and media intervention control Information, association ID AID.
  • the end user selection changes; the end user turns off the usage function of the first network; the first network is congested; and the access network discovery and selection function ANDSF configuration changes.
  • the method further includes: stopping sending the service on the first network when one of the following conditions is met: sending the uninstall indication message before sending the uninstall indication message, sending the uninstall indication message After receiving the network connection reconfiguration message sent by the second network.
  • the method further includes: releasing the resource applied on the first network when one of the following conditions is met: sending the uninstall indication message, after sending the uninstall indication message, receiving the After the second network sends a network connection reconfiguration message.
  • the first network comprises a wireless local area network WLAN
  • the second network comprises a third generation mobile communication partner plan 3GPP network.
  • a service migration method including: an uninstallation indication message reported by a receiving terminal after determining that the service of the terminal in the first network needs to be migrated, where the uninstall indication is The message is used to request that part of the service or all services of the terminal in the first network be migrated to the second network.
  • the method further includes: sending, according to the uninstall indication message, a network connection reconfiguration message to the terminal, where the network connection reconfiguration message is used to indicate The terminal releases resources between the terminal and the first network.
  • the uninstallation indication message includes at least one of the following information: a reason for the uninstallation, a radio bearer identifier RB ID corresponding to the service to be migrated, and/or a logical channel identifier LCHID, and a service corresponding to the service to be migrated.
  • a service set identifier SSID and/or a basic service set identifier BSSID of the point a measurement result of the terminal to the first network, and/or a measurement result of the second network, a terminal identifier of the terminal, and media intervention control Information, association ID AID.
  • the method further includes: sending, to the first network, an unloading release for releasing resources between the second network and the first network Indicating; and/or releasing resources between the terminal.
  • releasing resources with the terminal when at least one of the following conditions is met: after sending the network connection reconfiguration message to the terminal, after sending the network connection reconfiguration message to the terminal, After receiving the unloading release indication sent by the first network for releasing resources between the second network and the terminal, receiving the first network unloading release complete message, to the first Sending, by the network, an unload release indication for releasing a resource between the second network and the first network, and sending the first network to release the second network and the first network After the unloading of the resource is released.
  • the first network comprises a wireless local area network WLAN
  • the second network comprises a third generation mobile communication partner plan 3GPP network.
  • a service migration apparatus including: a determining module, configured to determine that a service of the terminal in the first network needs to be migrated; and a reporting module configured to report the uninstallation indication message to the first And a second network, where the uninstall indication message is used to request to migrate part or all services of the terminal in the first network to the second network.
  • the device further includes: a first receiving module, configured to receive a network connection reconfiguration message returned by the second network according to the uninstall indication message; and a first release module configured to be heavy according to the network connection The configuration message releases resources between the terminal and the first network.
  • a first receiving module configured to receive a network connection reconfiguration message returned by the second network according to the uninstall indication message
  • a first release module configured to be heavy according to the network connection The configuration message releases resources between the terminal and the first network.
  • the device further includes: a stopping module, configured to stop sending the service on the first network when one of the following conditions is met: before sending the uninstall indication message, when sending the uninstall indication message, sending After the uninstall indication message, after receiving the network connection reconfiguration message sent by the second network.
  • a stopping module configured to stop sending the service on the first network when one of the following conditions is met: before sending the uninstall indication message, when sending the uninstall indication message, sending After the uninstall indication message, after receiving the network connection reconfiguration message sent by the second network.
  • the device further includes: a second release module, configured to release the resource applied on the first network when one of the following conditions is met: when the uninstall indication message is sent, send the uninstall indication After the message, after receiving the network connection reconfiguration message sent by the second network.
  • a second release module configured to release the resource applied on the first network when one of the following conditions is met: when the uninstall indication message is sent, send the uninstall indication After the message, after receiving the network connection reconfiguration message sent by the second network.
  • a service migration apparatus including: a second receiving module, configured to receive, by the receiving terminal, the first reported after the terminal determines that the service in the first network needs to be migrated. An offload indication message of the network, where the offload indication message is used to request to migrate part of services or all services of the terminal in the first network to a second network.
  • the device further includes: a first sending module, configured to send a network connection reconfiguration message to the terminal according to the uninstall indication message, where the network connection reconfiguration message is used to indicate that the terminal is released a resource between the terminal and the first network.
  • a first sending module configured to send a network connection reconfiguration message to the terminal according to the uninstall indication message, where the network connection reconfiguration message is used to indicate that the terminal is released a resource between the terminal and the first network.
  • the device further includes: a second sending module, configured to send, to the first network, an unloading release indication for releasing resources between the second network and the first network; and/ Or a third release module configured to release resources between the terminal and the terminal.
  • a second sending module configured to send, to the first network, an unloading release indication for releasing resources between the second network and the first network
  • a third release module configured to release resources between the terminal and the terminal.
  • the embodiment of the present invention is used to determine that the service of the terminal in the first network needs to be migrated; the uninstallation indication message is reported to the second network, where the uninstall indication message is used to request the terminal to be in the first network.
  • the part or the whole of the service is migrated to the second network, and the problem that the data packet is delayed and lost due to the second network being unable to know the usage of the first network in the user equipment is solved, and the problem is reached. Reduce the packet loss rate and time delay of the packet.
  • FIG. 1 is a schematic diagram 1 of co-local cooperation of a WLAN and a 3GPP network in a related art
  • FIG. 2 is a schematic diagram 2 of co-local cooperation of a WLAN and a 3GPP network in a related art
  • FIG. 3 is a schematic diagram of a non-co-located cooperation of a WLAN and a 3GPP network in a related art
  • FIG. 4 is a flowchart of a first service migration method according to an embodiment of the present invention.
  • FIG. 5 is a second service migration method according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a first service migration apparatus according to an embodiment of the present invention.
  • FIG. 7 is a first preferred structural block diagram of a first service migration apparatus according to an embodiment of the present invention.
  • FIG. 8 is a second preferred structural block diagram of a first service migration apparatus according to an embodiment of the present invention.
  • FIG. 9 is a third preferred structural block diagram of a first type of service migration apparatus according to an embodiment of the present invention.
  • FIG. 10 is a structural block diagram of a second service mobility apparatus according to an embodiment of the present invention.
  • FIG. 11 is a block diagram of a first preferred structure of a second type of service migration apparatus according to an embodiment of the present invention.
  • FIG. 12 is a second preferred structural block diagram of a second service mobility apparatus according to an embodiment of the present invention.
  • FIG. 16 is a flowchart of an unloading report between access technologies in an internet according to Embodiment 4 of the present invention.
  • FIG. 4 is a flowchart of a first service migration method according to an embodiment of the present invention. As shown in FIG. 4, the process includes the following steps:
  • Step S402 determining that the service of the terminal in the first network needs to be migrated
  • Step S404 the uninstallation indication message is reported to the second network, where the uninstallation indication message is used to request to migrate part of the service or all services of the terminal in the first network to the second network.
  • the uninstallation indication message is sent to the second network, so that the second network can be informed of the uninstallation situation, and the service is not offloaded to the first network, thereby effectively solving the problem.
  • the problem of delaying and losing data packets caused by the second network being unable to know the usage of the first network in the user equipment exists in the related art, thereby reducing the packet loss rate and time delay of the data packet. effect.
  • the network connection reconfiguration message returned by the second network according to the uninstallation indication message may also be received, and then the resource between the terminal and the first network may be released according to the network connection reconfiguration message. , thereby migrating traffic between the terminal and the first network to other networks.
  • the offloading indication message for requesting to migrate part of the service or the entire service of the terminal in the first network to the second network may include multiple types of information.
  • the uninstall indication message may include At least one of the following information: the reason for the uninstallation, the radio bearer identifier RB ID and/or the logical channel identifier LCHID corresponding to the service to be migrated, the service set identifier SSID and/or the basic service of the access point corresponding to the service to be migrated.
  • the determining may be performed according to a predetermined condition.
  • determining the service of the terminal in the first network when at least one of the following conditions is met
  • the migration needs to be performed: the link quality of the first network is deteriorated; the service attribute of the service of the terminal is changed to not allow the use of the first network; the terminal user selection is changed; the terminal user turns off the use function of the first network; and the first network is congested;
  • the access network discovery and selection function ANDSF configuration changes. According to any one or more of the foregoing conditions, it may be determined that some or all of the services of the terminal in the first network need to be migrated, thereby performing a migration operation of the service.
  • the sending of the service on the first network is stopped: before sending the uninstall indication message, when sending the uninstall indication message, after sending the uninstall indication message, and receiving the second network sending After the network connection reconfiguration message.
  • the sending and unloading indication message mentioned here reports the uninstallation indication message to the second network as described above.
  • the resources applied on the first network may be released when one of the following conditions is met: when the uninstall indication message is sent, after the uninstall indication message is sent, and the network connection sent by the second network is received. After configuring the message.
  • the first network may include a wireless local area network WLAN
  • the second network may include a third generation mobile communication partner plan 3GPP network.
  • FIG. 5 is a second service migration method according to an embodiment of the present invention. As shown in FIG. 5, the method includes the following steps:
  • Step S502 The receiving terminal reports an uninstall indication message that is reported after the terminal needs to perform the migration in the first network, where the uninstall indication message is used to request to migrate part or all services of the terminal in the first network to Second network.
  • the terminal side needs to perform the migration of the service by receiving the uninstallation indication information for requesting the partial or partial service of the terminal to be migrated to the second network in the first network, so that the traffic on the first network can be avoided.
  • the resulting packet loss and delay effectively solve the problem of delay and loss of the data packet caused by the second network being unable to know the usage of the first network in the user equipment in the related art, thereby reducing the loss of the data packet.
  • the effect of packet rate and time delay is a packet rate and time delay.
  • the terminal may perform reconfiguration of the network connection.
  • the terminal further includes: according to the uninstall indication message to the terminal And sending a network connection reconfiguration message, where the network connection reconfiguration message is used to instruct the terminal to release resources between the terminal and the first network.
  • the foregoing uninstallation indication message may include at least one of the following information: a reason for the uninstallation, a radio bearer identifier RB ID corresponding to the service to be migrated, and/or a logical channel identifier LCHID, and a migration required.
  • the service set identifier SSID and/or the basic service set identifier BSSID of the access point corresponding to the service, the measurement result of the terminal to the first network, and/or the measurement result of the second network, the terminal identifier of the terminal, the media intervention control information, and the association Identifies the AID.
  • the method further includes: sending, to the first network, an unloading release indication for releasing resources between the second network and the first network; and/or releasing the relationship with the terminal Resources. Thereby, the service of the terminal and the first network is migrated to the second network.
  • the resource between the terminal and the terminal may be released: when the network connection reconfiguration message is sent to the terminal, after the network connection reconfiguration message is sent to the terminal, and the first After the unloading release indication sent by the network for releasing the resource between the second network and the terminal, receiving the first network unloading release complete message, and sending the first network to release the second network and the first network After the unloading release indication of the resource, the unloading release indication for releasing the resource between the second network and the first network is sent to the first network.
  • the first network described above may include a wireless local area network WLAN, and the second network may include a third generation mobile communication partner plan 3GPP network.
  • a service migrating device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and is not described again.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 6 is a structural block diagram of a first service migrating device according to an embodiment of the present invention. As shown in FIG. 6, the device includes a determining module 62 and a reporting module 64. The device will be described below.
  • the determining module 62 is configured to determine that the service of the terminal in the first network needs to be migrated; the reporting module 64, The foregoing determining module 62 is configured to report the uninstallation indication message to the second network, where the uninstallation indication message is used to request that part of the service or all services of the terminal in the first network be migrated to the second network.
  • FIG. 7 is a first preferred structural block diagram of a first service migration apparatus according to an embodiment of the present invention. As shown in FIG. 7, the apparatus includes a first receiving module 72 and all but the modules shown in FIG. The first release module 74, the device will be described below.
  • the first receiving module 72 is connected to the reporting module 64, and configured to receive a network connection reconfiguration message returned by the second network according to the uninstallation indication message.
  • the first release module 74 is connected to the first receiving module 72, and is configured to be according to the network.
  • the connection reconfiguration message releases the resources between the terminal and the first network.
  • FIG. 8 is a second preferred structural block diagram of a first service migration apparatus according to an embodiment of the present invention. As shown in FIG. 8, the apparatus includes a stop module 82, in addition to all the modules shown in FIG. The device will be described.
  • the stopping module 82 is configured to stop sending the service on the first network when one of the following conditions is met: before sending the uninstall indication message, when sending the uninstall indication message, after sending the uninstall indication message, and receiving the network connection sent by the second network After configuring the message.
  • FIG. 8 is a schematic diagram of an example of stopping transmission of a service on a first network when transmitting an offload indication.
  • FIG. 9 is a third preferred structural block diagram of a first type of service migration apparatus according to an embodiment of the present invention. As shown in FIG. 9, the apparatus includes a second release module 92 in addition to all the modules shown in FIG. The device will be described below.
  • the second release module 92 is configured to release the resources applied on the first network when one of the following conditions is sent: after sending the uninstall indication message, after sending the uninstall indication message, after receiving the network connection reconfiguration message sent by the second network .
  • FIG. 9 is a schematic diagram of an example of releasing a resource applied on a first network when an uninstall instruction is sent.
  • FIG. 10 is a structural block diagram of a second service migrating device according to an embodiment of the present invention. As shown in FIG. 10, the device includes a second receiving module 102, which will be described below.
  • the second receiving module 102 is configured to receive an offload indication message of the first network that is reported by the terminal after determining that the service of the terminal in the first network needs to be migrated, where the uninstall indication message is used to request that the terminal be in the first network. Part of the business or all of the business migrated to the second network.
  • FIG. 11 is a first preferred structural block diagram of a second type of service migrating apparatus according to an embodiment of the present invention. As shown in FIG. 11, the apparatus includes a first sending module 112 in addition to all the modules shown in FIG. The device will be described below.
  • the first sending module 112 is connected to the second receiving module 102, and is configured to end to the uninstall indication message.
  • the terminal sends a network connection reconfiguration message, where the network connection reconfiguration message is used to instruct the terminal to release resources between the terminal and the first network.
  • FIG. 12 is a second preferred structural block diagram of a second type of service migrating apparatus according to an embodiment of the present invention. As shown in FIG. 12, the apparatus includes a second sending module 122 and, in addition to all the modules shown in FIG. / or a third release module 124, which will be described below.
  • the second sending module 122 is connected to the second receiving module 102, and configured to send an unloading release indication for releasing resources between the second network and the first network to the first network; and/or a third release module 124. Connect to the second receiving module 102, and set to release resources between the terminal and the terminal.
  • the present invention will be described below by taking the first network as a WLAN network and the second network as a 3GPP network as an example.
  • a method for unloading and reporting the inter-network between the access technologies is also provided, so as to solve the problem that the 3GPP network side cannot know that the user-side WIFI is shut down and continues to offload data to the WLAN network.
  • the method includes: the terminal reporting the WLAN network offloading indication of the terminal itself or the service to the 3GPP network by using the uplink air interface message, and after receiving the air interface message, the 3GPP network sends the radio resource control connection reconfiguration message to the terminal, and the terminal receives the Returning the RRC connection reconfiguration complete message, and then the terminal releases the tight coupling related resources (such as IP address and/or MAC address and/or association identifier AID bundle release) with the WLAN, and the tight coupling between the 3GPP release and the WLAN Related resources (such as IP and / or MAC address and / or AID bundle release).
  • the tight coupling related resources such as IP address and/or MAC address and/or association identifier AID bundle release
  • the offload indication may request the network side to migrate all or part of the services of the UE in the WLAN back to the 3GPP network.
  • the radio bearer identifier RB ID and/or the logical channel ID corresponding to the migrating service need to be carried.
  • the service set identifier (Service Set Identifier) of the AP corresponding to the migrated service is required. It is the SSID) and/or the Basic Service Set Identifier (abbreviated as BSSID).
  • the reason for the uninstallation needs to be carried in the uninstallation indication message.
  • the uninstallation indication sending process will be triggered by one or more of the following events:
  • the user selection changes for example, the user chooses to turn off the WLAN offload function
  • the WLAN network is seriously congested
  • the ANDSF configuration changes (for example, all or part of the current service of the UE is no longer allowed to use the WLAN after the change, or the UE is no longer allowed to use the currently used WLAN AP/AC after the change).
  • the offloading indication carries the measurement result of the UE for the WLAN network and/or the measurement result of the UE to the LTE network.
  • the UE will stop the service transmission on the WLAN at the same time as sending the offload indication or after sending the offload indication or before sending the offload indication.
  • the UE will release the resources applied for on the WLAN after transmitting the uninstallation indication or sending the uninstallation indication.
  • the UE After receiving the 3GPP network side reconfiguration message, the UE stops the service transmission on the WLAN.
  • the UE After receiving the 3GPP network side reconfiguration message, the UE will release the resources applied on the WLAN.
  • the WLAN side related tightly coupled resource release can have three triggers:
  • WLAN self-test for example, the information of the terminal cannot be obtained within a certain period of time
  • the 3GPP network side notifies the WLAN side by sending a unload release indication message
  • the UE If the UE is part of the service offload, the UE triggers the WLAN to release the tightly coupled resources related to the part of the service;
  • the 3GPP network side may release three resources related to the tight coupling of the terminal:
  • the WLAN side notifies the 3GPP network side by sending a unload release indication message
  • the invention will now be described in connection with specific embodiments.
  • the LTE system is closely coupled to the WLAN as an example.
  • the technical solutions provided in this embodiment of the Universal Mobile Telecommunications System (UMTS) system are the same.
  • the UE is in a WLAN/LTE integrated base station site, and the UE and the integrated base station site Both support LTE and WLAN tightly coupled WLAN offloading schemes. It is also used for scenarios where the WLAN and the 3GPP network are ideally connected and the dual-connected small cell is tightly coupled to the WLAN.
  • the PDCP layer offloading is simplified as an application scenario.
  • FIG. 13 is a flowchart of the unloading report reporting of the access technology network according to the first embodiment of the present invention. The process of reporting the unloading indication information of the 3GPP access network and the WLAN tightly coupled system in this embodiment is as shown in FIG.
  • Step 1301 The radio resource control layer (Radio Resource Control, RRC for short) of the terminal sends the uplink air interface message including its own unloading indication to the network side.
  • RRC Radio Resource Control
  • the unloading indication includes a combination of one or more of the following information: indication information, reason for unloading, SSID, BSSID, LCHID, RB ID, UE ID, MAC, AID, wherein the offload indication may request the network side to the UE All of the WLANs are migrated back to the 3GPP network.
  • the uninstallation indication sending process will be triggered by one or more of the following events:
  • the user selection changes for example, the user chooses to turn off the WLAN offload function
  • the WLAN network is seriously congested
  • the ANDSF configuration changes (for example, all or part of the current service of the UE is no longer allowed to use the WLAN after the change, or the UE is no longer allowed to use the currently used WLAN AP/AC after the change).
  • the offloading indication carries the measurement result of the UE for the WLAN network and/or the measurement result of the UE to the LTE network, and the uplink air interface message is an RRC connection establishment request or a newly established message.
  • Step S1302 The network side RRC sends a radio control resource reconfiguration message to the terminal.
  • Step S1303 The terminal receives the radio control resource reconfiguration message, performs resource reconfiguration, and then sends a radio control resource reconfiguration complete message to the network side.
  • step S1304 the terminal stops the service transmission on the WLAN, and releases some resources related to the WLAN, such as an IP address.
  • Step S1305 The 3GPP network side sends an unload release indication to the WLAN side.
  • the 3GPP network side After the 3GPP network side sends the unloading release indication or sends the unloading release indication, the 3GPP network side releases the resources related to the terminal tight coupling.
  • step S1306 the WLAN side releases some resources, such as an IP address, which are closely coupled with the terminal.
  • step S1307 the WLAN side returns the unloading release completion to the 3GPP network side.
  • the PDCP layer of the dual connectivity architecture is used as an application scenario.
  • FIG. 14 is a flowchart of unloading and reporting between access technologies in the network according to the second embodiment of the present invention, including:
  • step S1401 since the ANDSF policy requires the terminal to turn off the WLAN offload of the terminal or the WLAN offload of a certain service or multiple services of the terminal, the radio resource control layer (Radio Resource Control, RRC for short) of the terminal will include the unloading of the terminal.
  • the information or the service or the unloading report information of the terminal is sent to the network side.
  • the unloading information includes a combination of one or more of the following information: indication information, reason for unloading, SSID, BSSID, RB ID, UE ID, wherein the reason for unloading may be an ANDSF policy.
  • the uplink air interface message sent by the terminal to the network layer may carry unloading information for some or all of the multiple services, and may also specify a part or all of the services. Unloading information.
  • the unloading information of the multiple services may be partially the same.
  • the unloading information of multiple services has the same SSID address, but has different BSSIDs and the like.
  • the uplink air interface message is an RRC connection setup request or a newly established message.
  • Step S1402 The network side RRC sends a radio control resource reconfiguration message to the terminal.
  • the ANDSF policy is the unloading information of part of the service of the terminal, the corresponding part of the service reconfiguration resource in the radio control resource reconfiguration message.
  • Step S1403 The terminal receives the radio control resource reconfiguration message, performs resource reconfiguration, and then sends a radio control resource reconfiguration complete message to the network side.
  • Step S1404 The terminal initiates an access point release indication to the WLAN side.
  • the purpose of the access point release indication is that the terminal will stop the service transmission on the WLAN, and the terminal will release some resources, such as an IP address, which are tightly coupled with the WLAN.
  • the purpose of the access point release indication is that the terminal stops transmitting part of the service on the WLAN, and the terminal releases some resources between the corresponding service and the WLAN.
  • This release indication content contains a combination of one or more of the following information: unloading reason, SSID, BSSID, RB ID, UE ID.
  • step S1405 the WLAN side returns the access point release completion to the terminal side.
  • Step S1406 The 3GPP network side sends an unload release indication to the WLAN side.
  • the purpose of the unloading release indication is that the WLAN side releases some resources between the corresponding and tight coupling of the terminal, such as MAC address binding, buffer, and the like.
  • the purpose of the unloading release indication is that the WLAN side releases some resources between the corresponding service and the tight coupling of the terminal, such as IP address binding, buffer, and the like.
  • step S1407 the WLAN side returns the unloading release completion to the 3GPP network side.
  • the 3GPP network side releases resources closely related to the terminal.
  • the MAC layer offloading is used as an application scenario, and the WLAN radio quality degradation occurs at the same time.
  • FIG. 15 is a flowchart of the unloading report reporting between the access technology networks according to the third embodiment of the present invention
  • FIG. 15 is a flowchart of the unloading information reporting process of the 3GPP access network and the WLAN tightly coupled system.
  • step S1501 the quality of the WLAN radio link is deteriorated, and the radio resource control layer (Radio Resource Control, hereinafter referred to as RRC) of the terminal transmits the downlink air interface message including its own unloading indication to the network side.
  • RRC Radio Resource Control
  • the reason for the unloading here may be that the quality of the WLAN radio link is deteriorated.
  • the terminal detects that the WLAN signal is below a certain threshold within a certain period of time.
  • the offloading indication carries the measurement result of the UE for the WLAN network and/or the UE to the LTE network.
  • the measurement result wherein the UE will stop the service transmission on the WLAN after transmitting the offload indication or after transmitting the offload indication or before sending the offload indication.
  • the UE will release the resources applied for on the WLAN after transmitting the uninstallation indication or sending the uninstallation indication.
  • Step S1502 The network side RRC sends a radio control resource reconfiguration message to the terminal.
  • Step S1503 The terminal receives the radio control resource reconfiguration message, performs resource reconfiguration, and then sends a radio control resource reconfiguration complete message to the network side.
  • step S1504 the WLAN side starts releasing the tightly coupled resources with the terminal.
  • the WLAN side starts the time point, and can perform self-detection and set a timer. If the UE does not receive the feedback information after a certain time threshold, the release is started.
  • step S1505 the WLAN side sends an unloading release indication to the 3GPP network side.
  • the 3GPP network side releases the resources closely related to the terminal.
  • Step S1506 The 3GPP network side returns the unload release completion to the WLAN side.
  • the RLC layer is offloaded into an application scenario, and the service attributes are changed.
  • FIG. 16 is a flowchart of the unloading report between the access technologies in the network according to the fourth embodiment of the present invention, including:
  • step S1601 the service attribute is changed, and the service is no longer allowed to use the WLAN after the change, and the radio resource control layer (Radio Resource Control, RRC for short) of the terminal will include the unloading information of the terminal or the corresponding unloading report of the service of the terminal.
  • the information is sent to the network side.
  • the unloading information may include a combination of one or more of the following information: indication information, reason for unloading, SSID, BSSID, RB ID, UE ID, MAC, AID.
  • the reason for the unloading may be a change in the business attribute.
  • the change of the service attribute may be manually set by the user or modified by the network side signaling configuration.
  • the UE will stop the service on the WLAN after sending the uninstallation indication or sending the uninstallation indication. give away.
  • the uplink air interface message is referred to in the first embodiment.
  • Step S1602 The network side RRC sends a radio control resource reconfiguration message to the terminal.
  • the 3GPP network side releases the resources closely related to the terminal.
  • Step S1603 The terminal receives the radio control resource reconfiguration message, performs resource reconfiguration, and then sends a radio control resource reconfiguration complete message to the network side.
  • Step S1604 The 3GPP network side sends an unload release indication to the WLAN side.
  • the WLAN side releases some resources between the corresponding service and tight coupling of the terminal, such as IP address binding, buffer, and the like.
  • step S1605 the WLAN side returns the unloading release completion to the 3GPP network side.
  • Step S1606 The WLAN side returns an access point release indication to the terminal side.
  • step S1607 the terminal side returns the access point release completion to the WLAN side.
  • the terminal will stop data transmission of a certain service and delete the tightly coupled resources related to the service.
  • the terminal feeds back to the 3GPP network corresponding terminal or the unloading indication of the service by using the uplink air interface message, and then the 3GPP network sends a radio resource reconfiguration message to the terminal by using the corresponding 3GPP network downlink air interface message, and the terminal confirms that the reconfiguration is completed.
  • the terminal and the 3gpp network side complete the release of tightly coupled data with the WLAN. It can be used to modify the WIFI configuration in the process of tight coupling between the 3GPP access network and the WLAN, and solves the problem that the 3GPP network cannot know that the user side WIFI is turned off and the data packet is delayed and lost.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Further, they may be implemented by program code executable by the computing device such that they may be stored in the storage device for execution by the computing device and, in some cases, may be performed in a different order than herein.
  • the steps shown or described are either made separately into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the foregoing embodiments of the present invention can be applied to the field of communications, and solve the problem of delaying and losing data packets caused by the second network being unable to know the usage of the first network in the user equipment in the related art, thereby achieving data reduction.
  • the packet loss rate and time delay effect of the packet can be applied to the field of communications, and solve the problem of delaying and losing data packets caused by the second network being unable to know the usage of the first network in the user equipment in the related art, thereby achieving data reduction.
  • the packet loss rate and time delay effect of the packet can be applied to the field of communications, and solve the problem of delaying and losing data packets caused by the second network being unable to know the usage of the first network in the user equipment in the related art, thereby achieving data reduction.

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Abstract

本发明提供了一种业务迁移方法及装置，其中，该方法包括：确定终端在第一网络中的业务需要进行迁移；将卸载指示消息上报给第二网络，其中，该卸载指示消息用于请求将终端在第一网络中的部分业务或全部业务迁移至第二网络，通过本发明，解决了相关技术中存在的由于第二网络无法获知用户设备中第一网络的使用情况而造成数据包延迟和丢失的问题，进而达到了降低数据包的丢包率和时间延迟的效果。

Description

业务迁移方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种业务迁移方法及装置。
背景技术
随着无线通信技术和标准的不断演进，移动分组业务得到了巨大的发展，单终端的数据吞吐能力不断在提升。以长期演进(Long Term Evolution，简称为LTE)系统为例，在20M带宽内可以支持下行最大速率100Mbps的数据传输，后续的增强的LTE(LTE Advanced)系统中，数据的传输速率将进一步提升，甚至可以达到1Gbps。
终端数据业务量膨胀式的增长，让现有的网络资源渐渐力不从心，尤其是在新一代通信技术(比如3G、LTE)还无法广泛布网的情况下，随之而来的是用户速率和流量需求无法满足，用户体验的变差。如何预防和改变这一情况是运营商必须考虑的问题，一方面需要加快新技术的推广和网络部署；另一方面，希望能够通过对现有网络和技术进行增强，以达到快速提升网络性能的目的。众所周知的，在第三代合作伙伴计划(The 3rd Generation Partnership Project，简称为3GPP)提供的无线网络技术之外，当前已经普遍应用的无线局域网(Wireless Local Area Network，简称为WLAN)，尤其是基于电气和电子工程师学会(Institute of Electrical and Electronics Engineers，简称为IEEE)802.11标准的无线局域网已经在家庭、企业甚至是互联网被广泛应用于热点接入覆盖。其中由WiFi联盟(Wi-Fi Alliance)提出的技术规范应用最广，因此实际中WiFi网络经常跟基于IEEE 802.11标准的WLAN网络划等号，在不引起混淆的情况下，下述也采用WiFi模块来描述网络节点中支持WLAN的无线收发和处理模块。
在这一前提下，有的运营商和公司已经提出将WLAN与现有3GPP网络进行融合，实现联合传输，以达到负荷分流和提高网络性能的目的。3GPP SA2通过了接入网发现和选择功能单元(Access Network Discovery and Selection Functions，简称为ANDSF)方案，提供了一种根据运营商策略为终端选择目标接入网络的模式。
3GPP R10定义了ANDSF标准，ANDSF作为接入锚点实现智能选网，通过网络与终端的交互协同，实现网络接入的有效分流，符合未来多网协同的运营方向。ANDSF基于网络负荷、终端能力、用户签约情况等信息制定策略，帮助终端用户选择最佳接入的网络制式，实现多种接入方式的协同运营。ANDSF既可以单独部署，也可与其它网元合设。目前，业界主流观点认为ANDSF可以部署在策略控制和计费(Policy Control and Charging，简称为PCC)设备上。
ANDSF是一个基于核心网的WLAN interworking方案，并没有考虑到对接入网的影响，此外由于ANDSF是一个相对静态的方案，不能很好对网络负荷与信道质量动态变化的情况进行适应，因此在3GPP接入网组也开展了WLAN interworking讨论。在R12WLAN/3GPP无线互操作中，执行WLAN分流的规则和触发的机制被引入。
然而，核心网机制和来自无线接入网的辅助信息机制不能提供给网络侧实时地使用负荷和信道条件从而合并使用无线资源。另外，来自相同承载的数据不能同时在3GPP和WLAN链路上服务。因此WLAN与3GPP网络集成的需求在RAN65次全会被重新提出。
相比目前已经研究的依赖于策略和触发的WLAN分流方案，无线接入网(Radio Access Network，简称为RAN)层次聚合的WLAN与3GPP网络集成，简称WLAN和3GPP网络紧耦合，类似于载波聚合和双连接，为总体系统提供更好地双连接上资源的控制和利用。在无线层的紧集成和聚合允许更多的实时联合调度WLAN与3GPP网络的无线资源，因此提高用户服务质量(Quality of Service，简称为QoS)和整体系统容量。通过更好管理用户间的无线资源，能增加所有用户的集体吞吐量和提供整个系统容量。基于实时信道条件和系统使用情况下，每个链路调度决定能够做到每一个包的层次。用户面锚定在可靠的LTE网络，可以通过回退到LTE网络来提高性能。
WLAN和3GPP网络紧耦合能应用于同地协作场景(enb与接入点(Access Point，简称为AP)之间通过内部接口完成RAN层集成操作)和非同地协作场景(enb与AP之间通过外部接口完成RAN层集成操作)，这个本质上分别类似于3gpp载波聚合和双连接。同地协作方法应用于WLAN和3GPP集成基站站点如图1所示，该图1是相关技术中的WLAN和3GPP网络紧耦合的同地协作示意图一，或者理想回路连接的WLAN和3GPP网络如图2所示，该图2是相关技术中的WLAN和3GPP网络紧耦合的同地协作示意图二，非同地协作方案应用于绝大多数情况下独立WLAN AP布局的场景如图3所示，该图3是相关技术中的WLAN和3GPP网络紧耦合的非同地协作示意图。
WLAN与3GPP网络紧耦合的wlan分流方案目前有四种：简化架构分组数据汇聚协议(Packet Data Convergence Protocol，简称为PDCP)层分流，双连接架构的PDCP层分流，无线链路控制(Radio Link Control，简称为RLC)层分流，媒体接入控制(Media Access Control，简称为MAC)层分流。
所谓简化架构PDCP层分流，下行数据流的WLAN分流在3GPP接入网的PDCP层完成，然后传送给PDCP适配器，该适配器完成3gpp的PDCP的协议数据单元到WLAN的MAC协议数据单元的转换，通过WLAN的无线空口发送给终端的WLAN的MAC层，然后在发送给终端的PDCP的适配器，在终端的适配器完成WLAN的 MAC协议数据单元到PDCP的协议数据单元的转换，然后发送给用户设备(User Equipment，简称为UE)的PDCP实体，最后PDCP实体将PDCP的服务数据单元发送对应的应用业务。上行数据流是从终端的PDCP实体发送到3GPP接入网的PDCP实体，与下行过程类似，只是方向相反而已。
所谓双连接架构PDCP层分流，数据分流两次，首先3GPP接入网的PDCP层将数据流分给次基站的小小区的无线链路控制层，然后在小小区的MAC中第二次下行数据流分流，即WLAN分流给MAC适配器，该适配器完成3gpp的MAC的协议数据单元到WLAN的MAC协议数据单元的转换，通过WLAN的无线空口发送给终端的WLAN的MAC层，然后在发送给终端的MAC的适配器，在终端的适配器完成WLAN的MAC协议数据单元到MAC的协议数据单元的转换，然后发送给UE的MAC实体，根据3GPP空口协议完成用户数据单元发送到对应的应用业务。上行数据流与下行过程类似，只是方向相反而已。
所谓RLC层分流，下行数据流的WLAN分流在3GPP接入网的RLC层完成，然后传送给RLC适配器，该适配器完成3gpp的RLC的协议数据单元到WLAN的MAC协议数据单元的转换，通过WLAN的无线空口发送给终端的WLAN的MAC层，然后在发送给终端的RLC的适配器，在终端的适配器完成WLAN的MAC协议数据单元到RLC的协议数据单元的转换，然后发送给UE的PDCP实体，最后PDCP实体将PDCP的服务数据单元发送对应的应用业务。上行数据流是从终端的PDCP实体发送到3GPP接入网的PDCP实体，与下行过程类似，只是方向相反而已。
所谓MAC层分流，下行数据流的WLAN分流在3GPP接入网的MAC层完成，然后传送给MAC适配器，该适配器完成3gpp的MAC的协议数据单元到WLAN的MAC协议数据单元的转换，通过WLAN的无线空口发送给终端的WLAN的MAC层，然后在发送给终端的MAC的适配器，在终端的适配器完成WLAN的MAC协议数据单元到MAC的协议数据单元的转换，然后发送给UE的PDCP实体，最后PDCP实体将PDCP的服务数据单元发送对应的应用业务。上行数据流是从终端的PDCP实体发送到3GPP接入网的PDCP实体，与下行过程类似，只是方向相反而已。
用户可以手动进行WIFI开关，也可以通过核心网和无线网络侧机制和策略智能方式进行WIFI开关。智能WIFI开关根据ANDSF提供当前位置附近的网络发现信息(比如WIFI的SSID)，启动打开WIFI开关，完成相关机制和策略。不会在附近没有可用的热点时白白浪费电量，也不会在可用的WIFI热点忘了手动打开WIFI而浪费宝贵的流量了。
对于WLAN与3GPP网络紧耦合操作的WIFI的开关，同样有用户手动开关形式，也有智能WIFI开关形式。由于用户手动开关形式随意性，还有智能开关WIFI会受到 核心网ANDSF影响，在用户进行WLAN与3GPP网络紧耦合操作时，会碰到用户手动关闭掉WIFI，或者接收到核心网ANDSF的策略要求关闭WLAN网络，这时3GPP网络应该不分流数据到WLAN网络侧，即卸荷WLAN网络数据流，但3GPP网络无法获知用户侧WIFI被关闭的情况，还会继续分流数据到WLAN网络，造成数据包延迟和丢失，甚至影响用户的使用感受。由此可知，在相关技术中存在着由于第二网络无法获知用户设备中第一网络的使用情况而造成数据包延迟和丢失的问题。
针对相关技术中存在的由于第二网络无法获知用户设备中第一网络的使用情况而造成数据包延迟和丢失的问题，目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种业务迁移方法及装置，以至少解决相关技术中存在的由于第二网络无法获知用户设备中第一网络的使用情况而造成数据包延迟和丢失的问题。
根据本发明实施例的一个方面，提供了一种业务迁移方法，包括：确定终端在第一网络中的业务需要进行迁移；将卸载指示消息上报给第二网络，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至所述第二网络。
可选地，在将所述卸载指示消息上报给所述第二网络之后，还包括：接收所述第二网络根据所述卸载指示消息返回的网络连接重配置消息；根据所述网络连接重配置消息释放终端与所述第一网络之间的资源。
可选地，所述卸载指示消息中包括以下信息至少之一：卸载的原因、需要进行迁移的业务对应的无线承载标识RB ID和/或逻辑信道标识LCHID、需要进行迁移的业务对应的接入点的服务集标识SSID和/或基本服务集标识BSSID、所述终端对所述第一网络的测量结果和/或对所述第二网络的测量结果、所述终端的终端标识、媒体介入控制信息、关联标识AID。
可选地，根据以下条件至少之一确定所述终端在所述第一网络中的业务需要进行迁移：所述第一网络的链路质量恶化；所述终端的业务的业务属性变更为不允许使用所述第一网络；终端用户选择发生改变；终端用户关闭所述第一网络的使用功能；所述第一网络发生拥塞；接入网络发现和选择功能ANDSF配置发生变化。
可选地，所述方法还包括：在满足如下条件之一时，停止在所述第一网络上发送业务：发送所述卸载指示消息之前、发送所述卸载指示消息时、发送所述卸载指示消息之后、接收到所述第二网络发送的网络连接重配置消息之后。
可选地，所述方法还包括：在满足如下条件之一时，释放在所述第一网络上申请到的资源：发送所述卸载指示消息时、发送所述卸载指示消息之后、接收到所述第二网络发送的网络连接重配置消息之后。
可选地，所述第一网络包括无线局域网WLAN，所述第二网络包括第三代移动通讯伙伴计划3GPP网络。
根据本发明实施例的另一方面，提供了一种业务迁移方法，包括：接收终端在确定所述终端在第一网络中的业务需要进行迁移后上报的卸载指示消息，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至第二网络。
可选地，在接收所述终端上述的所述卸载指示消息之后，还包括：根据所述卸载指示消息向所述终端发送网络连接重配置消息，其中，所述网络连接重配置消息用于指示所述终端释放所述终端与所述第一网络之间的资源。
可选地，所述卸载指示消息中包括以下信息至少之一：卸载的原因、需要进行迁移的业务对应的无线承载标识RB ID和/或逻辑信道标识LCHID、需要进行迁移的业务对应的接入点的服务集标识SSID和/或基本服务集标识BSSID、所述终端对所述第一网络的测量结果和/或对所述第二网络的测量结果、所述终端的终端标识、媒体介入控制信息、关联标识AID。
可选地，在接收所述终端上报的所述卸载指示消息之后，还包括：向所述第一网络发送用于释放所述第二网络与所述第一网络之间的资源的卸荷释放指示；和/或，释放与所述终端之间的资源。
可选地，在满足如下条件至少之一时，释放与所述终端之间的资源：向所述终端发送所述网络连接重配置消息时、向所述终端发送所述网络连接重配置消息之后、接收到所述第一网络发送的用于释放所述第二网络与所述终端之间的资源的卸荷释放指示后、接收到所述第一网络卸荷释放完成消息、向所述第一网络发送用于释放所述第二网络与所述第一网络之间的资源的卸荷释放指示时、向所述第一网络发送用于释放所述第二网络与所述第一网络之间的资源的卸荷释放指示之后。
可选地，所述第一网络包括无线局域网WLAN，所述第二网络包括第三代移动通讯伙伴计划3GPP网络。
根据本发明实施例的另一方面，提供了一种业务迁移装置，包括：确定模块，设置为确定终端在第一网络中的业务需要进行迁移；上报模块，设置为将卸载指示消息上报给第二网络，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至所述第二网络。
可选地，所述装置还包括：第一接收模块，设置为接收所述第二网络根据所述卸载指示消息返回的网络连接重配置消息；第一释放模块，设置为根据所述网络连接重配置消息释放终端与所述第一网络之间的资源。
可选地，所述装置还包括：停止模块，设置为在满足如下条件之一时，停止在所述第一网络上发送业务：发送所述卸载指示消息之前、发送所述卸载指示消息时、发送所述卸载指示消息之后、接收到所述第二网络发送的网络连接重配置消息之后。
可选地，所述装置还包括：第二释放模块，设置为在满足如下条件之一时，释放在所述第一网络上申请到的资源：发送所述卸载指示消息时、发送所述卸载指示消息之后、接收到所述第二网络发送的网络连接重配置消息之后。
根据本发明实施例的另一方面，还提供了一种业务迁移装置，包括：第二接收模块，设置为接收终端在确定所述终端在第一网络中的业务需要进行迁移后上报的第一网络的卸载指示消息，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至第二网络。
可选地，所述装置还包括：第一发送模块，设置为根据所述卸载指示消息向所述终端发送网络连接重配置消息，其中，所述网络连接重配置消息用于指示所述终端释放所述终端与所述第一网络之间的资源。
可选地，所述装置还包括：第二发送模块，设置为向所述第一网络发送用于释放所述第二网络与所述第一网络之间的资源的卸荷释放指示；和/或，第三释放模块，设置为释放与所述终端之间的资源。
通过本发明实施例，采用确定终端在第一网络中的业务需要进行迁移；将卸载指示消息上报给第二网络，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至所述第二网络，解决了相关技术中存在的由于第二网络无法获知用户设备中第一网络的使用情况而造成数据包延迟和丢失的问题，进而达到了降低数据包的丢包率和时间延迟的效果。
附图说明
此处所说明的附图用来提供对本发明实施例的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是相关技术中的WLAN和3GPP网络紧耦合的同地协作示意图一；
图2是相关技术中的WLAN和3GPP网络紧耦合的同地协作示意图二；
图3是相关技术中的WLAN和3GPP网络紧耦合的非同地协作示意图；
图4是根据本发明实施例的第一种业务迁移方法的流程图；
图5是根据本发明实施例的第二种业务迁移方法；
图6是根据本发明实施例的第一种业务迁移装置的结构框图；
图7是根据本发明实施例的第一种业务迁移装置的第一种优选结构框图；
图8是根据本发明实施例的第一种业务迁移装置的第二种优选结构框图；
图9是根据本发明实施例的第一种业务迁移装置的第三种优选结构框图；
图10是根据本发明实施例的第二种业务迁移装置的结构框图；
图11是根据本发明实施例的第二种业务迁移装置的第一种优选结构框图；
图12是根据本发明实施例的第二种业务迁移装置的第二种优选结构框图；
图13是根据本发明实施例一的接入技术网络间卸荷上报的流程图；
图14是根据本发明实施例二的接入技术网络间卸荷上报的流程图；
图15是根据本发明实施例三的接入技术网络间卸荷上报的流程图；
图16是根据本发明实施例四的接入技术网络间卸荷上报的流程图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
在本实施例中提供了一种业务迁移方法，图4是根据本发明实施例的第一种业务迁移方法的流程图，如图4所示，该流程包括如下步骤：
步骤S402，确定终端在第一网络中的业务需要进行迁移；
步骤S404，将卸载指示消息上报给第二网络，其中，该卸载指示消息用于请求将终端在第一网络中的部分业务或全部业务迁移至第二网络。
通过上述步骤，当确定需要进行网络间的业务迁移时，主动将卸载指示消息发送给第二网络，从而可以使得第二网络获知该卸载情况，避免将业务分流至第一网络中，从而有效解决了相关技术中存在的由于第二网络无法获知用户设备中第一网络的使用情况而造成数据包延迟和丢失的问题，进而达到了降低数据包的丢包率和时间延迟的 效果。
在将卸载指示消息上报给第二网络之后，还可以接收该第二网络根据卸载指示消息返回的网络连接重配置消息，然后可以根据该网络连接重配置消息释放终端和第一网络之间的资源，从而将终端和第一网络之间的业务迁移至其他网络中。
用于请求将终端在第一网络中的部分业务或全部业务迁移至第二网络的卸载指示消息中可以包括多种类型的信息，在一个可选的实施例中，该卸载指示消息中可以包括以下信息至少之一：卸载的原因、需要进行迁移的业务对应的无线承载标识RB ID和/或逻辑信道标识LCHID、需要进行迁移的业务对应的接入点的服务集标识SSID和/或基本服务集标识BSSID、终端对第一网络的测量结果和/或对第二网络的测量结果、终端的终端标识、媒体介入控制信息、关联标识AID。
在确定终端在第一网络中的业务需要进行迁移时，可以依据预定的条件来进行确定，在一个可选的实施例中，在满足如下条件至少之一时，确定终端在第一网络中的业务需要进行迁移：第一网络的链路质量恶化；终端的业务的业务属性变更为不允许使用第一网络；终端用户选择发生改变；终端用户关闭第一网络的使用功能；第一网络发生拥塞；接入网络发现和选择功能ANDSF配置发生变化。根据上述任何一个或多个条件均可以确定终端在第一网络中的部分或全部业务需要进行迁移，从而执行业务的迁移操作。
在一个可选的实施例中，在满足如下条件之一时，停止在第一网络上发送业务：发送卸载指示消息之前、发送卸载指示消息时、发送卸载指示消息之后、接收到第二网络发送的网络连接重配置消息之后。这里所说的发送卸载指示消息同上述的向第二网络上报卸载指示消息。
在一个可选的实施例中，可以在满足如下条件之一时，释放在第一网络上申请到的资源：发送卸载指示消息时、发送卸载指示消息之后、接收到第二网络发送的网络连接重配置消息之后。
上述的第一网络和第二网络的类型不限，在一个可选的实施例中，上述第一网络可以包括无线局域网WLAN，上述第二网络可以包括第三代移动通讯伙伴计划3GPP网络。
图5是根据本发明实施例的第二种业务迁移方法，如图5所示，该方法包括如下步骤：
步骤S502，接收终端在确定该终端在第一网络中的业务需要进行迁移后上报的卸载指示消息，其中，该卸载指示消息用于请求将终端在第一网络中的部分业务或全部业务迁移至第二网络。
通过上述步骤，通过接收用于请求将终端在第一网络中的部分业务或全部业务迁移至第二网络的卸载指示信息可以确认终端侧需要进行业务的迁移，从而可以避免在第一网络上分流而造成的数据包丢失和延迟，有效解决了相关技术中存在的由于第二网络无法获知用户设备中第一网络的使用情况而造成数据包延迟和丢失的问题，进而达到了降低数据包的丢包率和时间延迟的效果。
在接收到终端上报的卸载指示消息之后，还可以对终端进行网络连接的重配置，在一个可选的实施例中，在接收终端上述的卸载指示消息之后，还包括：根据卸载指示消息向终端发送网络连接重配置消息，其中，该网络连接重配置消息用于指示终端释放终端与第一网络之间的资源。
在一个可选的实施例中，上述卸载指示消息中可以包括以下信息至少之一：卸载的原因、需要进行迁移的业务对应的无线承载标识RB ID和/或逻辑信道标识LCHID、需要进行迁移的业务对应的接入点的服务集标识SSID和/或基本服务集标识BSSID、终端对第一网络的测量结果和/或对第二网络的测量结果、终端的终端标识、媒体介入控制信息、关联标识AID。
在接收上述终端上报的卸载指示消息之后，还包括：向第一网络发送用于释放第二网络与第一网络之间的资源的卸荷释放指示；和/或，释放与该终端之间的资源。从而将终端与第一网络的业务迁移至第二网络中。
在一个可选的实施例中，在满足如下条件至少之一时，可以释放与终端之间的资源：向终端发送网络连接重配置消息时、向终端发送网络连接重配置消息之后、接收到第一网络发送的用于释放第二网络与终端之间的资源的卸荷释放指示后、接收到第一网络卸荷释放完成消息、向第一网络发送用于释放第二网络与第一网络之间的资源的卸荷释放指示时、向第一网络发送用于释放第二网络与第一网络之间的资源的卸荷释放指示之后。
上述的第一网络可以包括无线局域网WLAN，第二网络可以包括第三代移动通讯伙伴计划3GPP网络。
在本实施例中还提供了一种业务迁移装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图6是根据本发明实施例的第一种业务迁移装置的结构框图，如图6所示，该装置包括确定模块62和上报模块64，下面对该装置进行说明。
确定模块62，设置为确定终端在第一网络中的业务需要进行迁移；上报模块64， 连接至上述确定模块62，设置为将卸载指示消息上报给第二网络，其中，该卸载指示消息用于请求将终端在第一网络中的部分业务或全部业务迁移至第二网络。
图7是根据本发明实施例的第一种业务迁移装置的第一种优选结构框图，如图7所示，该装置除包括图6所示的所有模块外，还包括第一接收模块72和第一释放模块74，下面对该装置进行说明。
第一接收模块72，连接至上述上报模块64，设置为接收第二网络根据卸载指示消息返回的网络连接重配置消息；第一释放模块74，连接至上述第一接收模块72，设置为根据网络连接重配置消息释放终端与第一网络之间的资源。
图8是根据本发明实施例的第一种业务迁移装置的第二种优选结构框图，如图8所示，该装置除包括图7所示的所有模块外，还包括停止模块82，下面对该装置进行说明。
停止模块82，设置为在满足如下条件之一时，停止在第一网络上发送业务：发送卸载指示消息之前、发送卸载指示消息时、发送卸载指示消息之后、接收到第二网络发送的网络连接重配置消息之后。图8是以在发送卸载指示时停止在第一网络上发送业务为例所绘制的示意图。
图9是根据本发明实施例的第一种业务迁移装置的第三种优选结构框图，如图9所示，该装置除包括图7所示的所有模块外，还包括第二释放模块92，下面对该装置进行说明。
第二释放模块92，设置为在如下条件之一时，释放在第一网络上申请到的资源：发送卸载指示消息时、发送卸载指示消息之后、接收到第二网络发送的网络连接重配置消息之后。图9是以在发送卸载指示时释放在第一网络上申请到的资源为例所绘制的示意图。
图10是根据本发明实施例的第二种业务迁移装置的结构框图，如图10所示，该装置包括第二接收模块102，下面对该装置进行说明。
第二接收模块102，设置为接收终端在确定终端在第一网络中的业务需要进行迁移后上报的第一网络的卸载指示消息，其中，该卸载指示消息用于请求将终端在第一网络中的部分业务或全部业务迁移至第二网络。
图11是根据本发明实施例的第二种业务迁移装置的第一种优选结构框图，如图11所示，该装置除包括图10所示的所有模块外，还包括第一发送模块112，下面对该装置进行说明。
第一发送模块112，连接至上述第二接收模块102，设置为根据卸载指示消息向终 端发送网络连接重配置消息，其中，该网络连接重配置消息用于指示终端释放终端与第一网络之间的资源。
图12是根据本发明实施例的第二种业务迁移装置的第二种优选结构框图，如图12所示，该装置除包括图10所示的所有模块外，还包括第二发送模块122和/或第三释放模块124，下面对其进行说明。
第二发送模块122，连接至上述第二接收模块102，设置为向第一网络发送用于释放第二网络与第一网络之间的资源的卸荷释放指示；和/或，第三释放模块124，连接至上述第二接收模块102，设置为释放与终端之间的资源。
下面以第一网络为WLAN网络，第二网络为3GPP网络为例，对本发明进行说明。
在本发明实施例中，还提供了一种接入技术网络间卸荷上报方法，以解决3GPP网络侧无法获知用户侧WIFI关闭导致继续分流数据到WLAN网络的问题。
该方法包括：终端通过上行空口消息向3GPP网络上报终端自己或者业务的WLAN网络卸载指示，3GPP网络侧收到该空口消息后，3GPP网络发送无线资源控制连接重配消息给终端，终端收到后返回无线资源控制连接重配置完成消息，然后终端释放与WLAN之间的紧耦合相关资源(比如IP地址和/或MAC地址和/或关联标识AID捆绑释放)，3GPP释放与WLAN之间的紧耦合相关资源(比如IP和/或MAC地址和/或AID捆绑释放)。
其中，卸载指示可以请求网络侧将该UE在WLAN中的所有或部分业务迁移回3GPP网络。
其中，当卸载指示用于请求网络侧将该UE在WLAN中的部分业务迁移回3GPP网络时，需要携带需要迁移业务对应的无线承载标识RB ID和/或逻辑信道ID。
其中，当卸载指示用于请求网络侧将该UE在WLAN中某个接入点AP下的所有业务迁移回3GPP网络时，需要携带被迁移业务对应的AP的服务集标识(Service Set Identifier，简称为SSID)和/或基本服务集标识(Basic Service Set Identifier，简称为BSSID。
其中，卸载指示消息中需要携带卸载的原因。
其中，卸载指示发送过程将由下列事件中的一个或多个组合触发：
1、WLAN无线链路质量恶化；
2、业务属性发生改变，改变后该业务不再允许使用WLAN；
3、用户选择发生改变(例如，用户选择关掉WLAN offload功能)；
4、用户关掉WLAN；
5、WLAN网络发生严重拥塞；
6、ANDSF配置发生改变(例如，改变后UE当前业务中的全部或部分不再允许使用WLAN，或者改变后UE不再允许使用当前使用的WLAN AP/AC)。
其中，卸载指示中将携带UE对于WLAN网络的测量结果和/或UE对LTE网络的测量结果。
其中，发送卸载指示的同时或发送卸载指示后或发送卸载指示之前，UE将停止在WLAN上的业务发送。
其中，发送卸载指示的同时或发送卸载指示后，UE将释放在WLAN上申请到的资源。
其中，收到3GPP网络侧重新配置消息后，UE将停止在WLAN上的业务发送。
其中，收到3GPP网络侧重新配置消息后，UE将释放在WLAN上申请到的资源。
其中，WLAN侧相关的紧耦合资源释放可以有三个触发：
WLAN自我检测，比如在一定时间内获取不到终端的信息；
3GPP网络侧通过发送卸荷释放指示消息通知WLAN侧；
如果UE是部分业务卸载，UE触发通知WLAN释放该部分业务相关的紧耦合资源；
其中，3GPP网络侧释放与该终端紧耦合相关的资源可以有三个触发：
3GPP发送资源重配置消息时或者发送资源重配置消息后；
WLAN侧通过发送卸荷释放指示消息通知3GPP网络侧；
收到WLAN卸荷释放完成消息后；
3GPP发送卸荷指示消息给WLAN时或者发送卸荷指示消息给WLAN后。
下面结合具体的实施例对本发明进行说明。以LTE系统与WLAN紧耦合为例进行说明，对于通用移动通信系统(Universal Mobile Telecommunications System，简称为UMTS)系统本实施例提供的技术方案实施原理相同。
本发明实施例中，UE处于WLAN/LTE集成基站站点，并且UE和集成基站站点 均支持LTE和WLAN紧耦合的WLAN分流方案。对于WLAN和3GPP网络之间是理想的连接以及双连接的小小区与WLAN的紧耦合等场景同样使用。
根据3GPP接入网与WLAN紧耦合的WLAN分流位置的不同，下面分别以背景技术中的四个WLAN分流方案为假设前提，来进行实施例描述：
实施例一
在该实施例中，以简化架构PDCP层分流为应用场景。
图13是根据本发明实施例一的接入技术网络间卸荷上报的流程图，本实施例中3GPP接入网与WLAN紧耦合系统的卸荷指示信息上报过程如图13所示，包括：
步骤1301、由于手动关闭WIFI，终端的无线资源控制层(Radio Resource Control，简称为RRC)将包含自己的卸荷指示的上行空口消息发送网络侧。
卸荷指示包含下列信息中的一个或多个信息的组合：指示信息、卸荷原因、SSID、BSSID、LCHID、RB ID、UE ID、MAC、AID，其中，卸载指示可以请求网络侧将该UE在WLAN中的所有迁移回3GPP网络。
其中，卸载指示发送过程将由下列事件中的一个或多个组合触发：
1、WLAN无线链路质量恶化；
2、业务属性发生改变，改变后该业务不再允许使用WLAN；
3、用户选择发生改变(例如，用户选择关掉WLAN offload功能)；
4、用户关掉WLAN；
5、WLAN网络发生严重拥塞；
6、ANDSF配置发生改变(例如，改变后UE当前业务中的全部或部分不再允许使用WLAN，或者改变后UE不再允许使用当前使用的WLAN AP/AC)。
假设，该实施例中的卸荷原因为手动关闭WIFI：
其中，卸载指示中将携带UE对于WLAN网络的测量结果和/或UE对LTE网络的测量结果，上行空口消息为RRC连接建立请求或者新建立的一个消息。
步骤S1302，网络侧RRC发送无线控制资源重新配置消息给终端。
终端是手动关闭WIFI时，同时有多个业务并发时，无线控制资源重新配置消息中全部业务重新配置资源。
步骤S1303，终端收到无线控制资源重新配置消息，进行资源重新配置，然后发送无线控制资源重新配置完成消息给网络侧。
步骤S1304，终端停止在WLAN上的业务发送，且释放与WLAN相关的一些资源，比如IP地址等。
步骤S1305，3GPP网络侧给WLAN侧发送卸荷释放指示。
其中,3GPP网络侧发送卸荷释放指示同时，或者发送卸荷释放指示后，3GPP网络侧释放与该终端紧耦合相关的资源。
步骤S1306，WLAN侧释放与该终端相关紧耦合的一些资源，比如IP地址等。
步骤S1307，WLAN侧给3GPP网络侧返回卸荷释放完成。
实施例二
本实施例以双连接架构PDCP层分流为应用场景。
本实施例中3GPP接入网与WLAN紧耦合系统的卸荷信息上报过程如图14所示，图14是根据本发明实施例二的接入技术网络间卸荷上报的流程图，包括：
步骤S1401，由于ANDSF策略需要终端关闭该终端的WLAN分流或者该终端某个业务或多个业务的WLAN分流，终端的无线资源控制层(Radio Resource Control，简称为RRC)将包含该终端的卸荷信息或者终端某个业务或多个业务对应卸荷上报信息发送网络侧。
卸荷信息包含下列信息中的一个或多个信息的组合：指示信息、卸荷原因、SSID、BSSID、RB ID、UE ID，其中，卸荷原因可以为ANDSF策略。
当ANDSF策略要求同时有多个业务并发卸荷时，终端向网络层发送的上行空口消息中可以为多个业务中的部分或全部业务分别携带卸荷信息，也可以为部分或全部业务指定统一的卸荷信息。
当终端侧为多个业务携带卸荷信息时，多个业务的卸荷信息可以部分相同。例如，多个业务的卸荷信息拥有相同的SSID地址，但是拥有不同的BSSID等。
上行空口消息为RRC连接建立请求或者新建立的一个消息。
步骤S1402，网络侧RRC发送无线控制资源重新配置消息给终端。
ANDSF策略为终端的卸荷信息时，无线控制资源重新配置消息中全部业务重新配置资源。
ANDSF策略为终端的部分业务的卸荷信息时，无线控制资源重新配置消息中对应部分业务重新配置资源。
步骤S1403，终端收到无线控制资源重新配置消息，进行资源重新配置，然后发送无线控制资源重新配置完成消息给网络侧。
步骤S1404，终端向WLAN侧发起接入点释放指示。
ANDSF策略为终端的卸荷信息时，接入点释放指示目的就是终端将停止在WLAN上的业务发送，终端将释放与WLAN紧耦合之间的一些资源，比如IP地址等。
ANDSF策略为终端的部分业务的卸荷信息时，接入点释放指示目的就是终端将停止在WLAN上的部分业务发送，终端释放对应业务与WLAN紧耦合之间的一些资源。
这个释放指示内容包含下列信息中的一个或多个信息的组合：卸荷原因、SSID、BSSID、RB ID、UE ID。
步骤S1405，WLAN侧给终端侧返回接入点释放完成。
步骤S1406，3GPP网络侧给WLAN侧发个卸荷释放指示。
ANDSF策略为终端的卸荷信息时，该卸荷释放指示目的就是WLAN侧释放该终端对应与紧耦合之间的一些资源，比如MAC地址绑定，缓冲区等。
ANDSF策略为终端的部分业务的卸荷信息时，该卸荷释放指示目的就是WLAN侧释放该终端相关业务对应与紧耦合之间的一些资源，比如IP地址绑定，缓冲区等。
步骤S1407，WLAN侧给3GPP网络侧返回卸荷释放完成。
其中，3GPP网络侧释放与该终端相关紧耦合的资源。
实施例三
本实施例以MAC层分流为应用场景,同时发生WLAN无线质量下降。
本发明实施例中3GPP接入网与WLAN紧耦合系统的卸荷信息上报过程如图15所示，图15是根据本发明实施例三的接入技术网络间卸荷上报的流程图，包括：
步骤S1501，WLAN无线链路质量恶化，终端的无线资源控制层(Radio Resource Control，简称为RRC)将包含自己的卸荷指示的下行空口消息发送网络侧。
卸荷指示可以参考实施例一。这里卸荷原因可以为WLAN无线链路质量恶化，比如在一定时间内终端检测到WLAN的信号低于某个门限值。
其中，卸载指示中将携带UE对于WLAN网络的测量结果和/或UE对LTE网络 的测量结果，其中，发送卸载指示的同时或发送卸载指示后或发送卸载指示之前，UE将停止在WLAN上的业务发送。
其中，发送卸载指示的同时或发送卸载指示后，UE将释放在WLAN上申请到的资源。
上行空口消息可以参考实施例一。
步骤S1502，网络侧RRC发送无线控制资源重新配置消息给终端。
WLAN无线链路质量恶化时，同时终端有多个业务并发时，无线控制资源重新配置消息中全部业务重新配置资源。
步骤S1503，终端收到无线控制资源重新配置消息，进行资源重新配置，然后发送无线控制资源重新配置完成消息给网络侧。
步骤S1504，WLAN侧启动释放与该终端的紧耦合资源。
其中，WLAN侧启动时间点，可以通过自我检测，并通过设置定时器，如果在一定时间阈值后没有收到UE的反馈信息，就启动释放。
步骤S1505，WLAN侧给3GPP网络侧发个卸荷释放指示。
其中，3GPP网络收到卸荷释放指示后，3GPP网络侧释放与该终端相关紧耦合的资源。
步骤S1506，3GPP网络侧给WLAN侧返回卸荷释放完成。
实施例四
本实施例以简化架构RLC层分流为应用场景，同时业务属性发生改变。
本实施例中3GPP接入网与WLAN紧耦合系统的卸荷信息上报过程如图16所示，图16是根据本发明实施例四的接入技术网络间卸荷上报的流程图，包括：
步骤S1601，由于业务属性发生改变，改变后该业务不再允许使用WLAN，终端的无线资源控制层(Radio Resource Control，简称为RRC)将包含该终端的卸荷信息或者终端该业务对应卸荷上报信息发送网络侧。卸荷信息可以包含下列信息中的一个或多个信息的组合：指示信息、卸荷原因、SSID、BSSID、RB ID、UE ID、MAC、AID。
其中，卸荷原因可以为业务属性发生改变。业务属性的改变，可以有用户手动设置，或者网络侧信令配置修改。
其中，发送卸载指示的同时或发送卸载指示后，UE将停止在WLAN上的业务发 送。
上行空口消息为参考实施例一。
步骤S1602，网络侧RRC发送无线控制资源重新配置消息给终端；
其中，网络侧发送无线控制资源重新配置消息时或者发送无线控制资源重新配置消息后，3GPP网络侧释放与该终端相关紧耦合的资源。
步骤S1603，终端收到无线控制资源重新配置消息，进行资源重新配置，然后发送无线控制资源重新配置完成消息给网络侧。
步骤S1604，3GPP网络侧给WLAN侧发送卸荷释放指示。
卸荷释放指示目的可以参考实施例二。
就是WLAN侧释放该终端相关业务对应与紧耦合之间的一些资源，比如IP地址绑定，缓冲区等。
步骤S1605，WLAN侧给3GPP网络侧返回卸荷释放完成。
步骤S1606，WLAN侧给终端侧返回接入点释放指示。
步骤S1607，终端侧给WLAN侧返回接入点释放完成。
其中，终端将停止某个业务的数据发送，删除该业务相关的紧耦合资源。
通过上述各实施例可知，终端通过上行空口消息反馈给3GPP网络对应终端或者业务的卸荷指示，然后3GPP网络通过对应3GPP网络下行空口消息向终端发送无线资源重配置消息，终端确认重配置完成，最后终端和3gpp网络侧完成与WLAN之间的紧耦合资料的释放。可用于3GPP接入网与WLAN紧耦合过程中WIFI配置修改，解决了3GPP网络无法获知用户侧WIFI被关闭的情况而造成数据包延迟和丢失问题。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，进一步地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的 任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
上述的本发明实施例，可以应用于通信领域，解决了相关技术中存在的由于第二网络无法获知用户设备中第一网络的使用情况而造成数据包延迟和丢失的问题，进而达到了降低数据包的丢包率和时间延迟的效果。

Claims (20)

  1. 一种业务迁移方法，包括：
    确定终端在第一网络中的业务需要进行迁移；
    将卸载指示消息上报给第二网络，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至所述第二网络。
  2. 根据权利要求1所述的方法，其中，在将所述卸载指示消息上报给所述第二网络之后，还包括：
    接收所述第二网络根据所述卸载指示消息返回的网络连接重配置消息；
    根据所述网络连接重配置消息释放终端与所述第一网络之间的资源。
  3. 根据权利要求1所述的方法，其中，所述卸载指示消息中包括以下信息至少之一：
    卸载的原因、需要进行迁移的业务对应的无线承载标识RB ID和/或逻辑信道标识LCHID、需要进行迁移的业务对应的接入点的服务集标识SSID和/或基本服务集标识BSSID、所述终端对所述第一网络的测量结果和/或对所述第二网络的测量结果、所述终端的终端标识、媒体介入控制信息、关联标识AID。
  4. 根据权利要求1所述的方法，其中，根据以下条件至少之一确定所述终端在所述第一网络中的业务需要进行迁移：
    所述第一网络的链路质量恶化；
    所述终端的业务的业务属性变更为不允许使用所述第一网络；
    终端用户选择发生改变；
    终端用户关闭所述第一网络的使用功能；
    所述第一网络发生拥塞；
    接入网络发现和选择功能ANDSF配置发生变化。
  5. 根据权利要求2所述的方法，其中，还包括：
    在满足如下条件之一时，停止在所述第一网络上发送业务：发送所述卸载指示消息之前、发送所述卸载指示消息时、发送所述卸载指示消息之后、接收到所述第二网络发送的网络连接重配置消息之后。
  6. 根据权利要求1所述的方法，其中，还包括：
    在满足如下条件之一时，释放在所述第一网络上申请到的资源：发送所述卸 载指示消息时、发送所述卸载指示消息之后、接收到所述第二网络发送的网络连接重配置消息之后。
  7. 根据权利要求1至6中任一项所述的方法，其中，所述第一网络包括无线局域网WLAN，所述第二网络包括第三代移动通讯伙伴计划3GPP网络。
  8. 一种业务迁移方法，包括：
    接收终端在确定所述终端在第一网络中的业务需要进行迁移后上报的卸载指示消息，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至第二网络。
  9. 根据权利要求8所述的方法，其中，在接收所述终端上述的所述卸载指示消息之后，还包括：
    根据所述卸载指示消息向所述终端发送网络连接重配置消息，其中，所述网络连接重配置消息用于指示所述终端释放所述终端与所述第一网络之间的资源。
  10. 根据权利要求8所述的方法，其中，所述卸载指示消息中包括以下信息至少之一：
    卸载的原因、需要进行迁移的业务对应的无线承载标识RB ID和/或逻辑信道标识LCHID、需要进行迁移的业务对应的接入点的服务集标识SSID和/或基本服务集标识BSSID、所述终端对所述第一网络的测量结果和/或对所述第二网络的测量结果、所述终端的终端标识、媒体介入控制信息、关联标识AID。
  11. 根据权利要求9所述的方法，其中，在接收所述终端上报的所述卸载指示消息之后，还包括：
    向所述第一网络发送用于释放所述第二网络与所述第一网络之间的资源的卸荷释放指示；和/或，
    释放与所述终端之间的资源。
  12. 根据权利要求11所述的方法，其中，在满足如下条件至少之一时，释放与所述终端之间的资源：
    向所述终端发送所述网络连接重配置消息时、向所述终端发送所述网络连接重配置消息之后、接收到所述第一网络发送的用于释放所述第二网络与所述终端之间的资源的卸荷释放指示后、接收到所述第一网络卸荷释放完成消息、向所述第一网络发送用于释放所述第二网络与所述第一网络之间的资源的卸荷释放指示时、向所述第一网络发送用于释放所述第二网络与所述第一网络之间的资源的卸荷释放指示之后。
  13. 根据权利要求8至12中任一项所述的方法，其中，所述第一网络包括无线局域网WLAN，所述第二网络包括第三代移动通讯伙伴计划3GPP网络。
  14. 一种业务迁移装置，包括：
    确定模块，设置为确定终端在第一网络中的业务需要进行迁移；
    上报模块，设置为将卸载指示消息上报给第二网络，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至所述第二网络。
  15. 根据权利要求14所述的装置，其中，还包括：
    第一接收模块，设置为接收所述第二网络根据所述卸载指示消息返回的网络连接重配置消息；
    第一释放模块，设置为根据所述网络连接重配置消息释放终端与所述第一网络之间的资源。
  16. 根据权利要求15所述的装置，其中，还包括：
    停止模块，设置为在满足如下条件之一时，停止在所述第一网络上发送业务：发送所述卸载指示消息之前、发送所述卸载指示消息时、发送所述卸载指示消息之后、接收到所述第二网络发送的网络连接重配置消息之后。
  17. 根据权利要求15所述的装置，其中，还包括：
    第二释放模块，设置为在满足如下条件之一时，释放在所述第一网络上申请到的资源：发送所述卸载指示消息时、发送所述卸载指示消息之后、接收到所述第二网络发送的网络连接重配置消息之后。
  18. 一种业务迁移装置，包括：
    第二接收模块，设置为接收终端在确定所述终端在第一网络中的业务需要进行迁移后上报的卸载指示消息，其中，所述卸载指示消息用于请求将所述终端在所述第一网络中的部分业务或全部业务迁移至第二网络。
  19. 根据权利要求18所述的装置，其中，还包括：
    第一发送模块，设置为根据所述卸载指示消息向所述终端发送网络连接重配置消息，其中，所述网络连接重配置消息用于指示所述终端释放所述终端与所述第一网络之间的资源。
  20. 根据权利要求19所述的装置，其中，还包括：
    第二发送模块，设置为向所述第一网络发送用于释放所述第二网络与所述第一网络之间的资源的卸荷释放指示；和/或，
    第三释放模块，设置为释放与所述终端之间的资源。
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