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WO2012130046A1 - Procédé et appareil de transfert de support de service - Google Patents

Procédé et appareil de transfert de support de service Download PDF

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Publication number
WO2012130046A1
WO2012130046A1 PCT/CN2012/072376 CN2012072376W WO2012130046A1 WO 2012130046 A1 WO2012130046 A1 WO 2012130046A1 CN 2012072376 W CN2012072376 W CN 2012072376W WO 2012130046 A1 WO2012130046 A1 WO 2012130046A1
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WO
WIPO (PCT)
Prior art keywords
wireless communication
network
service
communication networks
network element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/072376
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English (en)
Chinese (zh)
Inventor
和峰
韩立锋
艾建勋
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ZTE Corp
Original Assignee
ZTE Corp
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Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2012130046A1 publication Critical patent/WO2012130046A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • the present invention relates to the field of communications, and in particular to a service bearer migration method and apparatus.
  • BACKGROUND With the continuous evolution of wireless communication technologies and standards, mobile packet services have been greatly developed, and the data throughput capability of a single terminal is constantly increasing. 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. As the volume of data traffic expands, the demand for transmission rates and traffic by end users has made existing 2G and 3G network resources increasingly scarce, and the user experience has also deteriorated. How to improve the user experience is an urgent task that operators must consider.
  • LTE Long Term Evolution
  • LTE Advanced enhanced LTE
  • the domestic 2G network is currently congested due to the introduction of the General Packet Radio Service (GPRS) service, and the 3G network has not been fully utilized due to factors such as the number of users, and the load is low.
  • GPRS General Packet Radio Service
  • the 3G network has not been fully utilized due to factors such as the number of users, and the load is low.
  • GPRS General Packet Radio Service
  • the congested network will also bring operational pressure to the operators.
  • other network resources cannot be fully utilized, which also leads to waste of network resources and increases operators.
  • CAEX Capital Expenditure
  • the absolute data throughput rate of the terminal can be improved, the user experience can be improved, the market appeal to the end customer can be increased, and the current network resources can be fully utilized to reduce the operating cost of the operator.
  • the related problem still cannot solve the mobility problem of the terminal between multiple networks.
  • the terminal discovers a new inter-RAT (Cell-Inter-RAT) cell, all the services that the terminal is conducting can only be used as a whole in different cells. Room For migration, such mobility is not flexible enough to fully utilize existing network resources, and multiple networks connected to the terminal cannot be dynamically integrated.
  • Cell-Inter-RAT Cell-Inter-RAT
  • the present invention provides a service bearer migration method and apparatus, so as to at least solve the problem in the related art that all services that are being performed by a terminal are migrated between different cells as a whole, resulting in inflexibility of mobility.
  • a migration method of a service bearer is provided.
  • the method for migrating a service bearer according to the present invention is applied to a multi-network access system, the multi-network access system comprising: a plurality of wireless communication networks, and a core network gateway supporting a plurality of wireless communication networks; wherein, the plurality of wireless communications The network is connected in parallel, and one end of the plurality of wireless communication networks connected in parallel is connected to the multimode wireless terminal, and the other end is connected to the core network gateway; the migration method of the service bearer includes: determining the first among the plurality of wireless communication networks The wireless communication network initiates a service bearer migration process; and migrates part or all of the service bearers currently performed by the multimode wireless terminal to other wireless communication networks of the plurality of wireless communication networks except the first wireless communication network.
  • the foregoing service bearer migration process is implemented by enhancing a cross-system handover process.
  • the first wireless communication network includes: a radio access network network element, and the service bearer migration process is initiated by the radio access network element.
  • the radio access network element sends a handover request message or a relocation request message to the core network element of the first radio communication network to initiate a service bearer migration procedure.
  • the handover request message or the relocation request message carries: a bearer identifier to be migrated on the source side, a target side network element identifier, and user plane transport address information corresponding to the bearer to be migrated.
  • the foregoing handover request message or relocation request message further carries: differentiated identification information of the migration process.
  • the first wireless communication network further includes: a core network element, before the service bearer migration process is initiated by the radio access network element, the method further includes: sending, by the core network element, a service bearer migration to the radio access network element
  • the indication message is used to trigger the radio access network element to initiate a service bearer migration process.
  • the service bearer migration indication message is an interface message or a preset interface message between the core network element and the radio access network element.
  • the service bearer migration indication message carries at least one of the following: information corresponding to the service bearer to be migrated, and the target side network element identifier.
  • the migrating part or all of the service bearers currently performed by the multimode wireless terminal to the other wireless communication network includes: the multimode wireless terminal receiving the handover command from the first wireless communication network, where the handover command carries the indication multimode
  • the wireless terminal migrates some or all of the current service bearers to information of other wireless communication networks; the multimode wireless terminal accesses other wireless communication networks, and migrates some or all of the service bearers to other wireless communication networks.
  • the method further includes: the core network element of the other wireless communication network notifying the core network gateway to modify part or all of the services by modifying the bearer process. Carry the corresponding bearer information.
  • the foregoing radio access network element includes one of the following: a base station subsystem BSS, a radio network subsystem RNS, an evolved base station e B, and a wireless local area network WLAN access point.
  • the core network element includes one of the following: a serving general packet radio service support node SGSN or a mobile switching center MSC; a mobility management entity MME and/or a serving gateway S-GW; and an evolved packet data gateway ePDG.
  • the core network gateway includes one of the following: a gateway general packet radio service support node GGSN; a packet data network gateway P-GW and/or a serving gateway S-GW.
  • the core network gateway is a preset gateway node.
  • a migration device for a service bearer is provided.
  • the migration device of the service bearer according to the present invention is applied to a multi-network access system, the multi-network access system comprising: a plurality of wireless communication networks, and a core network gateway supporting a plurality of wireless communication networks; wherein, the plurality of wireless communication The network is connected in parallel, and one end of the plurality of wireless communication networks connected in parallel is connected to the multimode wireless terminal, and the other end is connected to the core network gateway;
  • the migration device of the service bearer includes: a determining module, configured to determine multiple wireless The first wireless communication network in the communication network initiates a service bearer migration indication message; the migration module is configured to migrate part or all of the service bearers currently performed by the multimode wireless terminal to the plurality of wireless communication networks except the first wireless communication network.
  • a service bearer migration indication message initiated by one of the plurality of wireless communication networks is received in a multi-network access system, and some or all of the service bearers currently carried by the multi-mode wireless terminal are migrated.
  • the method includes: a plurality of wireless communication networks, and a core network gateway supporting the plurality of wireless communication networks; the plurality of wireless communication networks are connected in parallel, and the plurality of wireless communication networks connected in parallel are connected at one end
  • the modulo wireless terminal is connected to the core network gateway at the other end.
  • the invention solves the problem that the related services in the related art are migrated between different cells as a whole, resulting in inflexibility of mobility, thereby improving the rate of the terminal data service and making full use of the existing network resources.
  • Terminal mobility and dynamic load balancing between networks effectively enhances the user experience.
  • FIG. 2 is a flowchart of a service bearer migration method according to an embodiment of the present invention
  • FIG. 3 is a service according to an example 1 of the present invention
  • FIG. 4 is a flowchart of a service bearer migration method according to Example 2 of the present invention
  • FIG. 5 is a flowchart of a service bearer migration method according to Example 3 of the present invention
  • FIG. 6 is a flowchart according to an embodiment of the present invention.
  • the structure of the service bearer migration device BEST MODE FOR CARRYING OUT THE INVENTION
  • the system includes a plurality of wireless communication networks (10, 12...1N), and a core network gateway 20 supporting a plurality of wireless communication networks; wherein, a plurality of wireless communication networks are connected in parallel, and One end of the plurality of wireless communication networks connected in parallel is connected to the multimode wireless terminal 30, and the other end is connected to the core network gateway 20.
  • the multi-mode wireless terminal 30 (or user equipment (UE)) can access the same core network gateway through a network of multiple radio access technologies.
  • the gateway divides the downlink data of the core network gateway into multiple sub-data streams, and respectively passes different
  • the line communication network is sent to the wireless terminal user, for example, via an LTE network, or a universal mobile communication system
  • multimode wireless terminals can also access one of multiple networks. Or multiple networks send uplink data.
  • the core network gateway here can reuse the data gateway in the existing network, for example, a Packet Data Network Gateway (P-GW) or a Serving Gateway (S-GW) in the LTE network. , or the Gateway GPRS Support Node (GGSN) of the UMTS network.
  • P-GW Packet Data Network Gateway
  • S-GW Serving Gateway
  • GGSN Gateway GPRS Support Node
  • an embodiment of the present invention provides a service bearer migration method. This will be described below in conjunction with FIG. 2. 2 is a flowchart of a service bearer migration method according to an embodiment of the present invention.
  • the service bearer migration method includes the following processes: Step S202: Determine a first wireless communication network initiates a service bearer migration process in multiple wireless communication networks; Step S204: Perform part or all of the current multimode wireless terminal
  • the service bearer is migrated to other wireless communication networks other than the first wireless communication network among the plurality of wireless communication networks.
  • All services in progress of the terminal are migrated between different cells as a whole, resulting in inflexibility of mobility.
  • the above method shown in FIG. 2 can improve the data service rate of the terminal, fully utilize the existing network resources, and achieve terminal mobility and dynamic load balancing among multiple networks, thereby effectively improving the user experience.
  • the service bearer refers to a user plane connection bearer established for transmitting data of the user equipment in different standard networks.
  • the bearer refers to an evolved universal terrestrial radio access network radio access bearer (E-UTRAN Radio Access Bearer, E-RAB) and its corresponding air interface bearer, and refers to radio access in the UMTS network.
  • E-RAB evolved universal terrestrial radio access network radio access bearer
  • RAB Radio Access Bearer
  • the first wireless communication network includes: a radio access network network element, and the service bearer migration process may be initiated by the radio access network element.
  • the foregoing process of migrating a service bearer may reuse an existing inter-RAT handover process implementation.
  • the radio access network element sends a cross-system cut by sending a handover request message or a relocation request message to a core network element of the first wireless communication network.
  • the switching process (that is, the foregoing service bearer migration process) needs to carry the identification information of the service or bearer to be migrated, the target side network element identifier, and the user plane address information corresponding to the bearer to be migrated in the handover request message or the relocation request message.
  • the handover information may optionally carry the identification information of the migration (handover) process.
  • the first wireless communication network may further include: a core network element, before the service bearer migration process is initiated by the radio access network element, the method further includes: the core network element to the wireless The access network element sends a service bearer migration indication message to trigger the radio access network element to initiate the service bearer migration process.
  • the core network element may initiate a service bearer migration indication message to the corresponding access network element, and then the access network element initiates a service bearer migration process according to the indication message, and the specific process and the access network The migration process initiated by the meta is the same.
  • the service bearer migration indication message initiated by the core network element may multiplex the interface message between the existing core network element and the radio access network element, or may be preset (ie newly introduced). Interface message.
  • the service bearer migration indication message may carry at least one of the following: information about the service bearer to be migrated, and/or the target information of the migrated target side network; optionally, the service bearer migration indication message may also be It is just an empty message, which is used to indicate that the radio access network element performs migration.
  • the above step S204 may further include the following processing:
  • the multimode wireless terminal receives a handover command from the first wireless communication network, where the handover command carries the indication that the multimode wireless terminal migrates some or all of the current service bearers to the Information about other wireless communication networks;
  • the multimode wireless terminal accesses the other wireless communication network, and migrates part or all of the service bearers to the other wireless communication network.
  • the core network element of the other wireless communication network notifies the core network gateway to modify bearer information corresponding to the part or all service bearers by modifying the bearer process.
  • the radio access network element may include: an Evolved Node B (eB), and the core network element may include: a Mobility Management Entity (abbreviated as MME) and/or Serving Gateway (S-GW);
  • the radio access network element may include: a radio network controller (Radio Network Controller, RNC for short) and a base station (Node B) (the RNC and the Node B may be collectively referred to as a radio network subsystem (RNS))
  • the core network element may include: a Serving GPRS Support Node (SGSN) or a Mobile Switching Center (MSC); in the GSM network, the radio access network element
  • the base station controller (BSC) and the base station (Base Transceiver Station, BTS for short) (the BSC and the BTS may be collectively referred to as a base station subsystem (BSS)
  • the core network element may include an SGSN or an MSC.
  • the foregoing radio access network element may be a control node of the radio access network in the network, and the core network element may also be a control node of the core network in the network.
  • the core network gateway is a gateway of the mobile communication network to the external network interface, and the external network includes: a Public Switched Telephone Network (PSTN) or an IP network.
  • PSTN Public Switched Telephone Network
  • the core network gateway may multiplex a gateway node in a communication network of each current radio access technology.
  • it may correspond to a Gateway General Packet Radio Service Node (Gateway GPRS Support Node, GGSN for short) in a 2G network packet domain (PS), or a GGSN node of a PS domain of 3G, or LTE.
  • GTE Gateway General Packet Radio Service Node
  • PS 2G network packet domain
  • LTE Long GPRS Support Node
  • the foregoing gateway can support the data offloading function in the multi-network access, that is, the received downlink data can be offloaded, and the downlink data after the offload processing is transmitted through one or more of the plurality of wireless communication networks connected thereto
  • the service bearer migration method can be used to implement partial service/bearer-based mobility between multi-mode wireless terminals (ie, user equipments) in different standard networks such as UMTS, LTE, and GSM. The details are described below in conjunction with FIGS. 3 to 5.
  • Step S302 The UE is in a connected state in the LTE network, and performs data transmission by the eNB and the gateway.
  • Step S304 The UE finds an available UMTS cell by measurement, and reports the information to e B.
  • Step S306 The eNB, according to the policy of the local base station, for example, the load under the local base station is too high, and determines to migrate the service bearer corresponding to the part of the service established by the terminal to the UMTS cell, and therefore sends a handover request to the MME (Handover Required).
  • the message where the message carries the bearer identification information to be migrated, and the user plane transport address information corresponding to the bearer.
  • the eNB may further add an indication bit to the message to indicate that the handover process is enhanced.
  • Step S308 The MME sends a Forward Relocation Request message to the target core network element SGSN according to the information, where the message carries the bearer related information that needs to be migrated.
  • Step S310 The SGSN sends a Relocation Request to the corresponding Radio Network Subsystem (Radio Network Subsystem, RNS for short). If the RNS can accept the bearer that needs to be migrated, the Relocation Request Acknowledge information is sent to the SGSN.
  • Step S312 The SGSN sends a Forward Relocation Response message to the source MME.
  • Step S314 The MME sends a Handover Command message to the eNB.
  • Step S316 The eNB sends a handover command message to the UE, instructing the terminal to perform handover.
  • Step S318 The UE accesses the target side RNS and sends a Handover to UTRAN Complete message.
  • Step S324 At the same time, the SGSN notifies the gateway by modifying the bearer process (Modify Bearer), and modifies the bearer information of the migrated part, and the data transmitted on the subsequent corresponding bearer needs to send the UE through the UMTS network.
  • Step S326 The MME releases the successfully migrated bearer and corresponding resources on the source side.
  • Step S328 The mobility of the partial bearer is completed at this time, and the UE can access the gateway through the LTE network and the UMTS network at the same time to perform data transmission.
  • 4 is a flow chart of a service bearer migration method according to Example 2 of the present invention. The migration process is initiated by the core network element. As shown in FIG.
  • the service bearer migration method mainly includes the following processes: Step S402: The UE is in a connected state in the LTE network, and performs data transmission by the eNB and the gateway. Step S404: The MME initiates a migration indication to the eNB, instructing the eNB to initiate a migration process.
  • the MME may notify the eNB of the service or bearer information that needs to be migrated by using the message, including the identifier information of the service or the bearer.
  • the MME may also notify the eNB of the migrated target network information, such as the identifier information of the target RNS.
  • the migration indication information may be existing signaling of the S1 interface, for example, using a UE Context Modification Request, and may also use a newly introduced new message.
  • Step S406 The eNB sends a Handover Required message to the MME, where the message carries the bearer identification information to be migrated, and the user plane transport address information corresponding to the bearer.
  • the eNB may further add an indication bit to the message to indicate that the handover process is enhanced.
  • Step S410 The SGSN sends a Relocation Request to the corresponding Radio Network Subsystem (Radio Network Subsystem, RNS for short). If the RNS can accept the bearer that needs to be migrated, the Relocation Request Acknowledge information is sent to the SGSN.
  • Step S412 The SGSN sends a Forward Relocation Response message to the source MME.
  • Step S414 The MME sends a Handover Command message to the eNB.
  • Step S416 The eNB sends a handover command message to the UE, instructing the terminal to perform handover. In order to distinguish the normal handover process, the corresponding indication information may be carried in the message.
  • Step S418 The UE accesses the target side RNS and sends a Handover to UTRAN Complete message.
  • Step S424 At the same time, the SGSN notifies the gateway by modifying the bearer process (Modify Bearer), and modifies the bearer information of the migrated part, and the data transmitted on the subsequent corresponding bearer needs to send the UE through the UMTS network.
  • Modify Bearer Modify Bearer
  • Step S426 The MME releases the successfully migrated bearer and corresponding resources on the source side.
  • Step S428 The mobility of the partial bearer is completed at this time, and the UE can access the gateway through the LTE network and the UMTS network at the same time to perform data transmission.
  • steps S406 to S426 are the same as steps S306 to S326 shown in FIG. 3, and details are not described in FIG.
  • FIG. 5 is a flowchart of a service bearer migration method according to Example 3 of the present invention. Wherein, the movement of the UE between the GSM and the LTE network is taken as an example.
  • the GSM network is the source side
  • the LTE network is the target side.
  • the service bearer migration method mainly includes the following processing:
  • Step S502 The UE is in a connected state in the GSM network, and passes through the base station subsystem (Base Station).
  • Step S504 The UE discovers the LTE cell by using the measurement, and reports the information to the BSS.
  • the user plane transmits address information and the like.
  • an indication bit may be added to the message to indicate that the handover process is enhanced.
  • Step S508 The SGSN sends a Forward Relocation Request message to the target core network element MME according to the information, where the message carries the bearer related information that needs to be migrated.
  • Step S510 The MME sends a handover request (Handover Request) to the corresponding e B. If e B can accept the bearer that needs to be migrated, the Handover Request Acknowledge information is sent to the MME.
  • Step S514 The SGSN sends a Relocation Required Acknowledge message to the BSS.
  • Step S516 The BSS sends a handover command message to the UE, instructing the terminal to switch to the LTE network.
  • Step S518 The UE accesses the target side e B and sends a Handover to EUTRAN Complete message.
  • Step S522 The MME notifies the source side SGSN that the bearer has been successfully migrated by using the Forward Relocation Complete process. To the LTE network.
  • Step S524 At the same time, the MME notifies the gateway by modifying the bearer process (Modify Bearer), and modifies the bearer information of the migrated part, and the data transmitted on the subsequent corresponding bearer needs to send the UE through the LTE network.
  • Step S526 The SGSN releases the successfully migrated bearer and corresponding resources on the source side.
  • Step S528 The migration of the partial bearer is completed at this time, and the UE can access the gateway through the GSM network and the LTE network at the same time to perform data transmission.
  • the embodiment of the present invention further provides a service bearer migration apparatus. Description will be made below with reference to FIG. 6.
  • FIG. 6 Description will be made below with reference to FIG. 6.
  • the service bearer migration apparatus includes: a determining module 60 and a migration module 62.
  • the determining module 60 is configured to determine a first wireless communication network initiating a service bearer migration process in the plurality of wireless communication networks; the migration module 62,
  • the receiving module 60 is connected to be configured to migrate some or all of the service bearers currently performed by the multimode wireless terminal to other wireless communication networks other than the first wireless communication network.
  • the device shown in FIG. 6 can improve the data service rate of the terminal, fully utilize the existing network resources, and achieve terminal mobility and dynamic load balancing among multiple networks, thereby effectively improving the user experience.
  • the foregoing first wireless communication network may include, but is not limited to: a radio access network element, and the service bearer migration process may be initiated by the radio access network element.
  • the step of initiating the service bearer migration by the radio access network element includes: processing, by the radio access network element, a handover request message or relocation to a core network element of the first radio communication network Request message.
  • the handover request message or the relocation request message may include: a bearer identifier to be migrated on the source side, a target side network element identifier, and user plane transport address information corresponding to the bearer to be migrated.
  • the foregoing first wireless communication network may further include: but not limited to: a core network element, and before the service bearer migration process is initiated by the network element of the radio access network, the method further includes: The radio access network element sends a service bearer migration indication message to trigger the radio access network element to initiate the service bearer migration process.
  • the core network element may initiate a service bearer migration indication message to the corresponding access network element, and then the access network element initiates a service bearer migration process according to the indication message, and the specific process and the access network The migration process initiated by the meta is the same.
  • the service bearer migration indication message initiated by the core network element may multiplex the interface message between the existing core network element and the radio access network element, or may be preset (ie newly introduced). Interface message.
  • the service bearer migration indication message may carry at least one of the following: information about the service bearer to be migrated, and/or the target information of the migrated target side network; optionally, the service bearer migration indication message may also be It is just an empty message, which is used to indicate that the radio access network element performs migration.
  • the foregoing embodiments provided by the present invention can effectively improve the data traffic rate of the terminal, fully utilize the existing network resources to avoid waste, and implement terminal mobility and dynamic load balancing among multiple networks.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into respective integrated circuit modules. Alternatively, multiple modules or steps of them can be implemented as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

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

Abstract

La présente invention porte sur un procédé et un appareil de transfert de support de service. Le procédé et l'appareil sont utilisés dans un système d'accès multi-réseau, qui comprend : une pluralité de réseaux de communication sans fil et une passerelle de réseau central qui prend en charge la pluralité de réseaux de communication sans fil; les différents réseaux de communication sans fil sont connectés les uns aux autres en parallèle, et une extrémité de la pluralité de réseaux de communication sans fil connectés les uns aux autres en parallèle est connectée à un terminal sans fil multi-mode en parallèle et l'autre extrémité est connectée à la passerelle de réseau central en parallèle. Le procédé de transfert de support de service consiste à : déterminer le premier réseau de communication sans fil de la pluralité de réseaux de communication sans fil pour envoyer un message d'indication du transfert de support de service, et transférer une partie ou la totalité du support de service en cours du terminal sans fil multi-mode à un autre réseau de communication sans fil de la pluralité de réseaux de communication sans fil, à l'exception du premier. Selon les systèmes techniques de la présente invention, les débits de trafic de données de terminaux sont améliorés; des ressources de réseaux existantes sont entièrement utilisées; une mobilité des terminaux et un équilibrage de charge dynamique entre une pluralité de réseaux sont réalisés; et l'expérience utilisateur est efficacement améliorée.
PCT/CN2012/072376 2011-03-25 2012-03-15 Procédé et appareil de transfert de support de service Ceased WO2012130046A1 (fr)

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CN2011100742652A CN102695234A (zh) 2011-03-25 2011-03-25 业务承载迁移方法及装置

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