WO2016119441A1

WO2016119441A1 - Service migration method and apparatus

Info

Publication number: WO2016119441A1
Application number: PCT/CN2015/087086
Authority: WO
Inventors: 贺美芳; 黄河
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-01-26
Filing date: 2015-08-14
Publication date: 2016-08-04
Also published as: CN105897375A

Abstract

Provided are a service migration method and apparatus, the method comprising: determining that a service of a terminal in a first network needs to be migrated; sending an uninstallation instruction message to a second network, the uninstallation instruction message being used to request migration of part or all of the service of the terminal in the first network to a second network. The present invention addresses the problems in the related art of packet delay and loss due to a second network being unaware of the usage circumstances of a first network of a user equipment, thereby reducing packet loss rate and delay.

Description

Business migration method and device

Technical field

The present invention relates to the field of communications, and in particular to a service migration method and apparatus.

Background technique

With the continuous evolution of wireless communication technologies and standards, mobile packet services have been greatly developed, and the data throughput capability of single terminals is constantly improving. Taking the Long Term Evolution (LTE) system as an example, the downlink maximum rate of 100 Mbps data transmission can be supported in a 20 M bandwidth. In the subsequent enhanced LTE (LTE Advanced) system, the data transmission rate will be further improved. It can even reach 1Gbps.

The inflated growth of terminal data traffic has made existing network resources incapable, especially in the case that next-generation communication technologies (such as 3G and LTE) cannot be widely deployed, followed by user rates and traffic. The demand cannot be met and the user experience is getting worse. How to prevent and change this situation is an issue that operators must consider. On the one hand, it is necessary to speed up the promotion of new technologies and network deployment. On the other hand, it is hoped that the existing networks and technologies can be enhanced to achieve rapid improvement of network performance. purpose. As is well known, in addition to the wireless network technology provided by The 3rd Generation Partnership Project (3GPP), a wireless local area network (WLAN), which is currently widely used, is especially based on Wireless LANs of the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard have been widely used in hotspot access coverage in homes, businesses, and even the Internet. Among them, 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.

Under this premise, some operators and companies have proposed to combine WLAN with existing 3GPP networks to achieve joint transmission to achieve load shunting and improve network performance. 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.

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.

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.

However, 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. In addition, 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.

Compared with the WLAN offloading scheme that relies on policy and triggering, the WLAN of the Radio Access Network (RAN) 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. By better managing the wireless resources between users, it is possible to increase the collective throughput of all users and provide the entire system capacity. Based on real-time channel conditions and system usage, 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. 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.

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.

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). 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 dual-connection architecture PDCP layer is offloaded, and the data is divided twice. First, 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, the adapter of the terminal 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.

For the WIFI switch of the WLAN and the 3GPP network tightly coupled operation, there are also user manual switch forms, and also smart WIFI switch forms. Due to the randomness of the user's manual switch, there is also a smart switch WIFI. 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. On the side, 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.

An effective solution has not been proposed for the problem of delay and loss of data packets caused by the second network being unable to know the usage of the first network in the user equipment.

Summary of the invention

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.

According to an aspect of the present invention, a service migration method is provided, 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.

Optionally, after the reporting the uninstallation indication message 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.

Optionally, 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.

Optionally, determining, according to at least one of the following conditions, that the service of the terminal in the first network needs to be migrated: a link quality of the first network is deteriorated; a service attribute of a service of the terminal is changed to not allowed. Using the first network; 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.

Optionally, 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.

Optionally, 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.

Optionally, the first network comprises a wireless local area network WLAN, and the second network comprises a third generation mobile communication partner plan 3GPP network.

According to another aspect of the present invention, a service migration method is provided, 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.

Optionally, after receiving the foregoing uninstallation indication message of the terminal, 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.

Optionally, after receiving the uninstall indication message reported by the terminal, 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.

Optionally, 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.

According to another aspect of the present invention, a service migration apparatus is provided, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

According to another aspect of the present invention, a service migration apparatus is further provided, 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.

Optionally, 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.

Optionally, 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.

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.

DRAWINGS

The drawings are intended to provide a further understanding of the embodiments of the present invention, and are intended to be a part of the present invention, and the description of the present invention is not intended to limit the invention. In the drawing:

1 is a schematic diagram 1 of co-local cooperation of a WLAN and a 3GPP network in a related art;

2 is a schematic diagram 2 of co-local cooperation of a WLAN and a 3GPP network in a related art;

3 is a schematic diagram of a non-co-located cooperation of a WLAN and a 3GPP network in a related art;

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.

FIG. 6 is a structural block diagram of a first service migration apparatus according to an embodiment of the present invention; FIG.

FIG. 7 is a first preferred structural block diagram of a first service migration apparatus according to an embodiment of the present invention; FIG.

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.

13 is a flowchart of an unloading report between access technologies in an internet according to Embodiment 1 of the present invention;

14 is a flowchart of an unloading report between access technologies in an internet according to Embodiment 2 of the present invention;

15 is a flowchart of an unloading report between access technologies in an internet according to Embodiment 3 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.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In this embodiment, a service migration method is provided. 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.

Through the foregoing steps, when it is determined that the service migration between the networks needs to be performed, 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.

After the uninstallation indication message is reported to the second network, 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. In an optional embodiment, 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 set identifier BSSID, 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 identifier AID.

When it is determined that the service of the terminal in the first network needs to be migrated, the determining may be performed according to a predetermined condition. In an optional embodiment, 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.

In an optional embodiment, when the one of the following conditions is met, 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.

In an optional embodiment, 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 foregoing first network and the second network are not limited in type. In an optional embodiment, the first network may include a wireless local area network WLAN, and 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.

Through the above steps, it is confirmed that 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.

After receiving the uninstallation indication message reported by the terminal, the terminal may perform reconfiguration of the network connection. In an optional embodiment, after receiving the foregoing uninstallation indication message, 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.

In an optional embodiment, 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.

After receiving the uninstallation indication message reported by the terminal, 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.

In an optional embodiment, when the at least one of the following conditions is met, 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.

In this embodiment, a service migrating device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and is not described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although 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.

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.

In the embodiment of the present invention, 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 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.

When the offloading indication is used to request the network side to migrate part of the service 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.

When the offloading indication is used to request the network side to migrate all the services of the UE to the 3GPP network in the WLAN, 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:

1. The quality of the WLAN radio link deteriorates;

2. The service attribute changes, and the service is no longer allowed to use the WLAN after the change;

3. The user selection changes (for example, the user chooses to turn off the WLAN offload function);

4. The user turns off the WLAN;

5. The WLAN network is seriously congested;

6. 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.

After receiving the 3GPP network side reconfiguration message, the UE stops the service transmission on the WLAN.

After receiving the 3GPP network side reconfiguration message, the UE will release the resources applied on the WLAN.

Among them, 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;

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:

When the 3GPP sends a resource reconfiguration message or after sending a resource reconfiguration message;

The WLAN side notifies the 3GPP network side by sending a unload release indication message;

After receiving the WLAN unload release completion message;

After the 3GPP sends the unloading indication message to the WLAN or sends the unloading indication message to the WLAN.

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.

In the embodiment of the present invention, 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.

According to the difference of the WLAN offloading position of the 3GPP access network and the WLAN, the following description is made by using the four WLAN offloading schemes in the background technology as a premise:

Embodiment 1

In this embodiment, 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.

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.

1. The quality of the WLAN radio link deteriorates;

4. The user turns off the WLAN;

5. The WLAN network is seriously congested;

Assume that the unloading reason in this embodiment is to manually turn off WIFI:

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.

When the terminal manually shuts down the WIFI, when there are multiple services concurrently, all the services in the wireless control resource reconfiguration message are reconfigured.

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.

In 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.

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.

In step S1306, the WLAN side releases some resources, such as an IP address, which are closely coupled with the terminal.

In step S1307, the WLAN side returns the unloading release completion to the 3GPP network side.

Embodiment 2

In this embodiment, the PDCP layer of the dual connectivity architecture is used as an application scenario.

The process of reporting the unloading information of the 3GPP access network and the WLAN tightly coupled system in this embodiment is as shown in FIG. 14. 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:

In 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.

When the ANDSF policy requires multiple services to be unloaded at the same time, 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.

When the terminal side carries the unloading information for multiple services, the unloading information of the multiple services may be partially the same. For example, 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.

When the ANDSF policy is the unloading information of the terminal, all the services in the radio control resource reconfiguration message are reconfigured.

When 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.

When the ANDSF policy is the unloading information of the terminal, 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.

When the ANDSF policy is the unloading information of a part of the service of the terminal, 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.

In 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.

When the ANDSF policy is the unloading information of the terminal, 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.

When the ANDSF policy is the unloading information of a part of the service of the terminal, 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.

In 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.

Embodiment 3

In this embodiment, 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, and FIG. 15 is a flowchart of the unloading information reporting process of the 3GPP access network and the WLAN tightly coupled system.

In 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.

Refer to Embodiment 1 for the unloading indication. The reason for the unloading here may be that the quality of the WLAN radio link is deteriorated. For example, 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.

For the uplink air interface message, refer to Embodiment 1.

Step S1502: The network side RRC sends a radio control resource reconfiguration message to the terminal.

When the quality of the WLAN radio link is degraded, and the terminal has multiple services concurrently, all the services in the radio control resource reconfiguration message reconfigure the resources.

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.

In 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.

In step S1505, the WLAN side sends an unloading release indication to the 3GPP network side.

After the 3GPP network receives the unloading release indication, 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.

Embodiment 4

In this embodiment, the RLC layer is offloaded into an application scenario, and the service attributes are changed.

The flowchart of the unloading information reporting of the 3GPP access network and the WLAN tightly coupled system in this embodiment is as shown in FIG. 16. 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:

In 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.

After the network side sends the radio control resource reconfiguration message or sends the radio control resource reconfiguration message, 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.

For the purpose of the unloading release indication, reference may be made to the second embodiment.

That is, 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.

In 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.

In 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.

According to the foregoing embodiments, 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. Finally, 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.

It will be apparent to those skilled in the art that the various 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 above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Having been made within the spirit and principles of the present invention Any modifications, equivalent substitutions, improvements, etc., are intended to be included within the scope of the present invention.

Industrial applicability

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.

Claims

A method of business migration, including:

Determining that the service of the terminal in the first network needs to be migrated;

The offloading indication message is sent to the second network, where the uninstalling indication message is used to request that some or all services of the terminal in the first network are migrated to the second network.
The method of claim 1, wherein after the reporting the uninstallation indication message to the second network, the method further comprises:

Receiving, by the second network, a network connection reconfiguration message returned according to the uninstall indication message;

And releasing resources between the terminal and the first network according to the network connection reconfiguration message.
The method of claim 1, wherein the uninstall indication message includes 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 of the access point corresponding to the service to be migrated, and/or the basic service set identifier BSSID, 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 identifier AID.
The method according to claim 1, wherein the service of the terminal in the first network needs to be migrated according to at least one of the following conditions:

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;

End user selection changes;

End user closes the use function of the first network;

The first network is congested;

The access network discovery and selection function ANDSF configuration changes.
The method of claim 2, further comprising:

When the one of the following conditions is met, the sending of the service on the first network is stopped: before the sending the uninstall indication message, when the uninstall indication message is sent, after sending the uninstall indication message, and receiving the second network sending After the network connection reconfiguration message.
The method of claim 1 further comprising:

Release the resources applied on the first network when one of the following conditions is met: sending the unloading After the indication message is sent, after the uninstall indication message is sent, after the network connection reconfiguration message sent by the second network is received.
The method of any of claims 1 to 6, wherein the first network comprises a wireless local area network WLAN and the second network comprises a third generation mobile communication partner plan 3GPP network.
A method of business migration, including:

The uninstallation indication message reported by the receiving 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 part of the service or all of the terminal in the first network. The business migrates to the second network.
The method according to claim 8, wherein after receiving the uninstall indication message of the terminal, the method further comprises:

Transmitting, according to the offloading indication message, a network connection reconfiguration message to the terminal, where the network connection reconfiguration message is used to instruct the terminal to release resources between the terminal and the first network.
The method according to claim 8, wherein the uninstall indication message includes 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 of the access point corresponding to the service to be migrated, and/or the basic service set identifier BSSID, 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 identifier AID.
The method according to claim 9, wherein after receiving the uninstall indication message reported by the terminal, the method further includes:

Sending an unload release indication for releasing resources between the second network and the first network to the first network; and/or,

Releasing resources with the terminal.
The method of claim 11, wherein the resource with the terminal is released when at least one of the following conditions is met:

And after transmitting the network connection reconfiguration message to the terminal, after sending the network connection reconfiguration message to the terminal, receiving, by the first network, the second network and the terminal After receiving the unloading release indication of the resource, receiving the first network unloading release completion message, and transmitting to the first network, releasing the resource between the second network and the first network And after the release indication is sent, after the unload release indication for releasing resources between the second network and the first network is sent to the first network.
The method of any of claims 8 to 12, wherein the first network comprises a wireless local area network WLAN and the second network comprises a third generation mobile communication partner plan 3GPP network.
A service migration device, comprising:

Determining a module, configured to determine that the service of the terminal in the first network needs to be migrated;

The reporting module is configured to report the uninstallation indication message to the second network, where the uninstallation indication message is used to request that some or all services of the terminal in the first network are migrated to the second network.
The apparatus according to claim 14, further comprising:

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 release a resource between the terminal and the first network according to the network connection reconfiguration message.
The device according to claim 15, further comprising:

Stopping the 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, after sending the uninstall indication message, receiving the After the network connection reconfiguration message sent by the second network.
The device according to claim 15, further comprising:

a second release module, configured to release a resource applied on the first network when one of the following conditions is met: when the uninstall indication message is sent, after the uninstall indication message is sent, and the second network is received After the network connection is reconfigured, the message is sent.
A service migration device, comprising:

a second receiving module, configured to receive an uninstallation indication message that is sent 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 Some or all of the services in the network are migrated to the second network.
The apparatus of claim 18, further comprising:

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 instruct the terminal to release the terminal and the first network Resources between.
The apparatus of claim 19, further comprising:

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,

And a third release module configured to release resources between the terminal and the terminal.