WO2012109998A1 - 在切换时保持选择性ip流量分流连接的方法及装置 - Google Patents

在切换时保持选择性ip流量分流连接的方法及装置 Download PDF

Info

Publication number
WO2012109998A1
WO2012109998A1 PCT/CN2012/071246 CN2012071246W WO2012109998A1 WO 2012109998 A1 WO2012109998 A1 WO 2012109998A1 CN 2012071246 W CN2012071246 W CN 2012071246W WO 2012109998 A1 WO2012109998 A1 WO 2012109998A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
selective
traffic offload
connection
offload connection
Prior art date
Application number
PCT/CN2012/071246
Other languages
English (en)
French (fr)
Inventor
邓强
张娟
周燕飞
Original Assignee
大唐移动通信设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Publication of WO2012109998A1 publication Critical patent/WO2012109998A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/12Reselecting a serving backbone network switching or routing node
    • H04W36/125Reselecting a serving backbone network switching or routing node involving different types of service backbones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0019Control or signalling for completing the hand-off for data sessions of end-to-end connection adapted for mobile IP [MIP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/12Reselecting a serving backbone network switching or routing node
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • H04W8/082Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents

Definitions

  • the present invention relates to the field of mobile communication radio access technologies, and in particular, to a method and apparatus for maintaining selective IP traffic offload connection during handover.
  • BACKGROUND With the development of wireless access technologies, data transmission is transmitted at a higher rate, and the increase in the number of users and the increase in the rate of transmission of user data all impose higher requirements on the performance of network elements of the core network.
  • the selected IP traffic offload (SIPTO) technology is a type of gateway that allows the core network to select the closest gateway to the user equipment (UE, User Equipment), so that a part of the data stream of the terminal passes through the gateway. Direct access to the packet data network (PDN, Packet Data Network) technology. Because the selective IP traffic offloading technology can offload the specific IP service from the gateway closest to the terminal attachment point, it can save the core network transmission resources, so it is paid more and more attention.
  • PDN Packet Data Network
  • the existing selective IP traffic offloading architecture based on the macro base station generally adopts the existing LTE system architecture, and selects a packet data network gateway (P-GW, PDN Gateway) closest to the geographical location of the terminal attachment point as a distribution point, all The data flow to the packet data network that will be subjected to the selective IP traffic offload policy is sent through the packet data network gateway, while the normal core network traffic is not affected.
  • the selective IP traffic offloading is activated in the packet data network connection process.
  • the core network control node such as the MME (Mobility Management Entity), determines whether the selective IP traffic offload can be activated according to the subscription data and the carrier configuration. .
  • the macro base station can also perform selective IP traffic offloading through a local gateway (L-GW, Local Gateway), that is, selective IP traffic enters the packet data network through the local gateway, such as local. Home or business network.
  • L-GW Local Gateway
  • the selective IP traffic offloading architecture can also be applied to the home base station (H(e)NB, Home ( enhanced ) NodeB), and the selective IP traffic offload traffic is passed between the H(e)NB and the local gateway.
  • the direct tunnel enters the local home or business network.
  • the terminal requests the establishment of the packet data network connection through the home base station, if the network allows the selective IP traffic offloading, the terminal selects the local gateway associated with the home base station as its packet data network gateway.
  • the switching of the selective IP traffic offload connection between the macro base stations is generally performed in the same manner as the general packet data network handover, and the core network control node will switch during the switching process of the selective IP traffic offload connection.
  • S-GW Serving Gateway
  • the technical problem to be solved by the present invention is to provide a method and apparatus for maintaining selective IP traffic offload connection during handover, which can maintain an IP connection between a local gateway and a serving gateway when switching selective IP traffic offload connections. , to avoid the interruption of selective IP traffic offload connection, to maintain the continuity of its connection.
  • the present invention discloses a method for maintaining a selective IP traffic offload connection during handover, comprising the following steps:
  • the activation identifier bit is added to the core network control node of the terminal;
  • the new core network control node determines the selection method of the service gateway of the terminal and reselects the service gateway.
  • the terminal when a packet data network connection is established for the terminal, if the terminal is not allowed to activate the selective IP traffic offload connection, the selective IP traffic offload connection is not activated for the terminal, and the activation flag is not added.
  • the source core control network node at the terminal Set the flag indicating whether the terminal activates the selective IP traffic offload connection
  • the terminal When switching, according to the identifier, it is determined whether the terminal currently activates the selective IP traffic offload connection. Further, when establishing a packet data network connection for the terminal, the following manner is used to determine whether to allow the terminal to activate the selective IP traffic offload connection:
  • the terminal is allowed to activate the selective IP traffic offload connection. Otherwise, the terminal is not allowed to activate the selective IP traffic offload connection.
  • the method for determining the selection method of the serving gateway of the terminal and reselecting the serving gateway is: if the terminal activates the selective IP traffic offload connection, and the activated selective IP traffic offload connection is established by the local gateway, obtaining A new service gateway having an IP connection with the local gateway uses the acquired new service gateway as a reselected service gateway.
  • the service gateway having an IP connection with the local gateway is obtained by using a domain name system or a local configuration.
  • the method for determining the selection method of the serving gateway of the terminal and reselecting the serving gateway is: if the terminal activates the selective IP traffic offload connection, and the activated selective IP traffic offload connection is established by the local gateway, The original service gateway acts as a reselected service gateway.
  • a device for maintaining a selective IP traffic shunt connection during handover comprising:
  • a first determining module determining whether the terminal currently activates the selective IP traffic offload connection
  • a second determining module determining whether the core network control node of the terminal changes
  • a selection module configured to determine a selection method of the service gateway of the terminal and reselect the service gateway when the core network control node is unchanged.
  • the device further includes:
  • An identifier adding module configured to add an activation flag to a core network control node of the terminal, if the terminal is allowed to activate and activate the selective IP traffic offload connection when establishing a packet data network connection for the terminal;
  • the first judging module determines whether the terminal currently activates the selective IP traffic offload connection according to whether the activation flag is added according to whether the activation flag is added.
  • the first determining module determines whether the terminal currently activates the selective IP traffic offload connection to obtain the selective IP traffic offload connection activation information, and the device further includes:
  • the information sending module is configured to send the selective IP traffic offload connection activation information to the new core network control node when the core network control node of the terminal changes.
  • the device further includes:
  • the third judging module is configured to: when the terminal establishes a packet data network connection, if the terminal is not allowed to activate the selective IP traffic offload connection, the selective IP traffic offload connection is not activated for the terminal, and the activation flag is not added. Further, the method for the selection module to determine the selection method of the service gateway of the terminal and reselect the service gateway is:
  • the terminal activates the selective IP traffic offload connection, and the activated selective IP traffic offload connection is established through the local gateway, obtain a new service gateway with an IP connection with the local gateway, and take the acquired new service gateway as a new Selected service gateway.
  • the method for the selection module to determine the selection method of the service gateway of the terminal and to reselect the service gateway is:
  • the terminal activates the selective IP traffic offload connection, and the activated selective IP traffic offload connection is established through the local gateway, the original service gateway is used as the reselected service gateway.
  • the present invention has the following advantages:
  • the core network control node determines whether to activate the selectivity according to the subscription information and the configuration information.
  • the IP traffic is split and connected, and the corresponding activation flag is set in the core network control node.
  • the core network control node only needs to determine whether the selective IP traffic offload connection is activated according to the activation flag, to determine the operations required in the subsequent handover, and to avoid the judgment and increase the handover again during the handover. The steps and time.
  • FIG. 1 is a flowchart of Embodiment 1 of a method for maintaining a selective IP traffic offload connection in a handover scenario according to the present invention
  • FIG. 2 is a schematic diagram of a method for maintaining a selective IP traffic offload connection in a handover scenario according to the present invention
  • FIG. 3 is a structural diagram of an application example 1 of a method for maintaining a selective IP traffic offload connection in a handover scenario according to the present invention
  • FIG. 4 is a schematic structural diagram of Embodiment 1 of an apparatus for maintaining a selective IP traffic shunt connection during handover according to the present invention
  • FIG. 5 is a schematic structural diagram of Embodiment 2 of the apparatus for maintaining a selective IP traffic shunt connection during handover according to the present invention
  • FIG. 6 is a schematic structural diagram of Embodiment 3 of an apparatus for maintaining a selective IP traffic shunt connection during handover according to the present invention.
  • a first embodiment of a method for maintaining a selective IP traffic offload connection during handover includes the following steps:
  • Step 101 Determine whether the terminal currently activates the selective IP traffic offload connection.
  • the terminal When the terminal moves (roaming), it can move from the coverage area of one base station to the coverage area of another base station, that is, from the source base station to the target base station.
  • the source base station sends a handover request to the source core network control node.
  • the terminal activates the selective IP traffic offload connection, it indicates that the terminal currently has a selective IP traffic offload connection.
  • the continuity of the selective IP traffic offload connection needs to be considered. For example, when the service gateway is subsequently selected, Note the IP connection with the local gateway. If the selective IP traffic offload connection is established through the service gateway and the packet data gateway, since both the serving gateway and the packet data gateway are located in the core network, there is an IP connection between the two, so even if Selecting the serving gateway can still guarantee the continuity of the selective IP traffic offload connection; if the selective IP traffic offload connection is established via the local gateway, there may be no IP connection between the reselected serving gateway and the local gateway. On the contrary, it indicates that the current terminal does not have a selective IP traffic shunt connection, and the existing switching process can be used for subsequent operations.
  • Step 102 Determine whether the core network control node changes.
  • the source core network control node of the terminal determines whether it needs to reselect the core network control node as the core network control node of the target base station according to its current load. If yes, it will select the new core network control node as the terminal.
  • the core network control node of the target base station still uses the source core network control node as the core network control node of the target base station. Before performing the subsequent operations, it is first determined whether the core network control node is changed. If it is changed, step 103 is performed. Otherwise, step 104 is directly executed.
  • Step 103 Send the selective IP traffic offload connection activation information to the new core network control node. Determining whether the terminal currently activates the selective IP traffic offload connection to obtain the selective IP traffic offload connection activation information, and the source core network control node sends the selective IP traffic offload connection activation information to the target core network control node, and the target core network control node Determine the selection method of the service gateway of the terminal and reselect the service gateway.
  • Step 104 Determine a selection method of the service gateway and reselect the service gateway.
  • the target core network control node reselects the serving gateway. If the core network control node of the target base station does not change, the source core network control node reselects the serving gateway.
  • the manner in which the core network control node of the target base station reselects the serving gateway includes the following two Kind:
  • the first way is: the core network control node of the target base station acquires a new service gateway having an IP connection with the local gateway as a reselected service gateway, where the new service gateway is a gateway different from the original serving gateway of the terminal. Specifically, you can use the Domain Name System (DNS) or local configuration to obtain a new service gateway with an IP connection to the local gateway of the terminal.
  • DNS Domain Name System
  • the second mode is as follows:
  • the core network control node of the target base station still uses the original service gateway as the reselected service gateway, where the original service gateway is the service gateway connected to the terminal before the handover.
  • the first mode will occupy more signaling resources, but the load balancing may be performed.
  • the new service gateway may be closer to the current location of the terminal, then when the terminal is near the current location.
  • the re-selected service gateway is the newly obtained service gateway, the newly acquired service gateway is used to perform the subsequent operations of the handover. If the original service gateway is still selected, the original service gateway is used to perform the subsequent operation of the handover. .
  • the method further includes:
  • Step 201 Add an activation flag indicating that the selective IP traffic offload connection is activated or not.
  • an identifier indicating whether the terminal is allowed to activate the selective IP traffic offload connection is added to the source core network control node.
  • the identifier bit can be directly used to determine whether the selective IP traffic offload connection is activated, to avoid re-determination, to simplify the subsequent operation of the handover, and to save the handover time.
  • the source core network control node obtains the subscription information from the Home Subscriber Server (HSS), and then obtains the local configuration information, and the source core network control node determines whether to activate the selective IP traffic according to the subscription information and the local configuration information. Split connection. If both the subscription information and the local configuration information allow the selective IP traffic offload connection to be activated, the activation is allowed, and vice versa. When the subscription information and the local configuration information are both allowed to activate the selective IP traffic offload connection, the selective IP traffic offload connection activation flag is set in the source core network control node, if at least one of the subscription information and the local configuration information is not allowed. When the selective IP traffic offload connection is activated, the activation flag is not added.
  • HSS Home Subscriber Server
  • the core network control node determines the selection method of the service gateway according to the activation information of the selective IP traffic offload connection, and reselects the service gateway, first determines whether the service gateway needs to be reselected, if not Do not re-select, if necessary, re-select, you can reduce unnecessary operations.
  • the core network control node when the core network control node reselects the serving gateway, if the terminal activates the selective IP traffic offload connection, and the activated selective IP traffic offload connection is established through the local gateway, the core network control node preferably acquires and locally The gateway has a new service gateway with an IP connection as the reselected service gateway, ensuring an IP connection between the reselected service gateway and the local gateway, thereby maintaining the continuity of the selective IP traffic offload connection and avoiding interruption during the handover process.
  • an identifier indicating whether the selective IP traffic offload connection is activated or not is set in the source core network control node, and in the subsequent handover process, only the activation identifier bit needs to be used. It can be determined whether the selective IP traffic offload connection is activated without re-judging, the switching operation process is completed, and the time required for the handover is saved.
  • the core network control node determines that the selective IP traffic offload connection needs to be activated according to the subscription information and the local configuration information in the home subscriber server, and the EPS bearer context EPS bearer in the core network control node. Set the activation flag of a selective IP traffic offload connection in Contexts.
  • the source core network control node determines that the selective IP traffic offload connection has been activated according to the activation identifier of the selective IP traffic offload connection in the EPS bearer Contexts, and determines that the target needs to be replaced.
  • the core network control node target MME
  • the source core network control node sends the selective IP traffic offload connection activation information to the target core network control node.
  • the source core network control node informs the target core network control node that the current terminal has activated the selective IP traffic offload connection by adding a flag in the Forward Relocation Request message.
  • the target core network control node determines whether to still use the original service gateway, and then performs subsequent operations of the handover.
  • an apparatus 100 for maintaining a selective IP traffic offload connection during handover is shown in the first embodiment of the present invention, including a first judging module 20, a second judging module 30, and a selecting module 50.
  • the first determining module 20 is configured to determine whether the selective IP traffic offload connection is currently activated by the terminal, and pass the determination result to the second determining module 30.
  • the second determining module 30 is configured to determine whether the core network control node of the terminal is changed.
  • the selecting module 50 is configured to determine a selection method of the serving gateway of the terminal and reselect the serving gateway when the core network control node is unchanged. If the core network control node has changed, the new core network control node performs the reselection of the serving gateway. If the original core network control node is still used, the selection gateway 50 of the source core network control node performs the service gateway. Re-selection.
  • the selection module 50 can choose to obtain a service gateway having an IP connection with the local gateway as a new service gateway. Specifically, you can use the Domain Name System (DNS) or local configuration to obtain a service gateway with an IP connection to the local gateway.
  • DNS Domain Name System
  • the selection module 50 can also still use the original service gateway as a new service gateway. Referring to FIG. 5, further, the apparatus 100 for maintaining a selective IP traffic offload connection at the time of handover further includes an identifier adding module 10 and an information transmitting module 40.
  • the flag adding module 10 is configured to add an activation flag to the core network control node of the terminal, if the terminal is allowed to activate and activate the selective IP traffic offload connection when establishing a packet data network connection for the terminal.
  • the first determining module 20 can identify whether the selective IP traffic offload connection is currently activated by the activation flag information added by the flag adding module 10.
  • the information sending module 40 is configured to send the selective IP traffic offload connection activation information to the new core network control node when the core network control node of the terminal changes. If the result of the second determination module 30 is that the core network control node has changed, the information sending module 40 transmits the selective IP traffic offload connection activation information to the new core network control node, if the second determining module 30 determines As a result, the core network control node does not change, and the original core network control node is still used, and the information sending module 40 does not process the processing.
  • the selection module 50 will determine the selection method of the service gateway and reselect the service gateway based on the selective IP traffic offload connection activation information.
  • the apparatus 100 for maintaining a selective IP traffic offload connection during handover further includes a third determining module 60, configured to determine whether to activate the selective IP traffic offload connection, and transmit the determination result to the identifier adding module. 10.
  • the flag adding module 10 adds the activation flag according to the determination result of the third determining module 60.
  • the third determining module 60 determines whether to activate the selective IP traffic offload connection according to the subscription information and the local configuration information.
  • the method for determining the selection method of the serving gateway of the terminal and reselecting the serving gateway is: if the terminal activates the selective IP traffic offload connection, and the activated selective IP traffic offload connection is established through the local gateway Obtaining a new service gateway having an IP connection with the local gateway, and using the acquired new service gateway as a reselected service gateway.
  • the method for determining the selection method of the serving gateway of the terminal and reselecting the serving gateway is: if the terminal activates the selective IP traffic offload connection, and the activated selective IP traffic offload connection is established through the local gateway The original service gateway is used as the reselected service gateway.
  • embodiments of the present invention can be provided as a method, system, or computer program product.
  • the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供了一种在切换时保持选择性IP流量分流连接的方法,包括:判断当前是否激活了选择性IP流量分流连接;判断核心网控制节点是否改变,在核心网控制节点发生改变时将选择性IP流量分流连接激活信息发送给新的核心网控制节点;确定服务网关选择方法并重新选择服务网关。本申请的在切换时保持选择性IP流量分流连接的方法,能够在选择性IP流量分流连接切换时,保持本地网关与服务网关之间的IP连接,避免选择性IP流量分流连接的中断,保持其连接的连续性。本申请还提供一种在切换时保持选择性IP流量分流连接的装置。

Description

在切换时保持选择性 IP流量分流连接的方法及装置 本申请要求在 2011年 2月 17日提交中国专利局、申请号为 201110039752.5.发明名称为"在 切换时保持选择性 IP流量分流连接的方法及装置 "的中国专利申请的优先权, 其全部内容通过 引用结合在本申请中。 技术领域 本发明涉及移动通信无线接入技术领域, 特别是涉及一种切换时保持选择性 IP流 量分流连接的方法及装置。 背景技术 随着无线接入技术的发展, 数据传输以更高的速率传递, 用户数量的增加和用户 数据传输速率的提高都对核心网络的网元性能提出了更高要求。 其中, 选择性 IP流量 分流( SIPTO, Selected IP Traffic Offload )技术是一种允许核心网为用户终端 ( UE , User Equipment )选择距离其附着点最近的网关,从而使终端的一部分数据流通过该网 关直接进入分组数据网络( PDN, Packet Data Network ) 的技术。 因为选择性 IP流量 分流技术可以把特定的 IP业务从距离终端附着点最近的网关分流出去,可以节省核心 网传输资源, 因此受到越来越多人的重视。
现有的基于宏基站的选择性 IP流量分流架构一般釆用现有的 LTE 系统架构, 通 过选择距离终端附着点地理位置最近的分组数据网网关( P-GW , PDN Gateway )作为 分流点,所有通往分组数据网络将被执行选择性 IP流量分流策略的数据流通过分组数 据网网关发送, 而正常的核心网流量不受影响。 选择性 IP流量分流在分组数据网络连 接过程中激活, 具体由核心网控制节点如 MME ( Mobility Management Entity, 移动性 管理实体)根据签约数据和运营商配置, 来判断是否可以激活选择性 IP流量分流。 另 外, 基于宏基站的选择性 IP流量分流架构中, 宏基站也可以通过本地网关 (L-GW, Local Gateway )进行选择性 IP流量分流, 即选择性 IP流量通过本地网关进入分组数 据网络如本地家庭或企业网络。
随着技术的发展, 选择性 IP 流量分流架构同样可以应用于家庭基站 (H(e)NB , Home ( enhanced ) NodeB ) 中, 选择性 IP流量分流流量通过 H(e)NB与本地网关之间 的直接隧道进入本地家庭或企业网络。 当终端通过家庭基站请求分组数据网络连接建 立时, 如果网络允许激活选择性 IP流量分流, 则为终端选择家庭基站关联的本地网关 作为其分组数据网网关。 在现有系统构架中, 在宏基站之间选择性 IP流量分流连接的切换一般采用与一般 的分组数据网络切换相同的方法进行, 核心网控制节点在选择性 IP流量分流连接的切 换过程中将决定是否重新选择服务网关 ( S-GW, Serving Gateway )。 一般情况下, 如 果选择性 IP流量分流连接是经过服务网关与分组数据网关建立的, 因为服务网关与分 组数据网关均位于核心网中, 两者之间具有 IP连接, 因此即使重新选择服务网关也仍 然能够保证选择性 IP流量分流连接的连续性。 但是, 如果选择性 IP流量分流连接是经 过本地网关与分组数据网建立的, 因为本地网关一般位于家庭或者企业网内部, 与重 新选择的服务网关之间可能不具有 IP连接, 因此这种情况下, 进行选择性 IP流量分流 连接切换时, 如果新选择的服务网关与本地网关之间没有 IP连接, 则会导致选择性 IP 流量分流连接的中断, 影响使用。 发明内容 本发明所要解决的技术问题是提供一种在切换时保持选择性 IP 流量分流连接的 方法及装置, 能够在选择性 IP流量分流连接切换时, 保持本地网关与服务网关之间的 IP连接, 避免选择性 IP流量分流连接的中断, 保持其连接的连续性。
为了解决上述问题,本发明公开了一种在切换时保持选择性 IP流量分流连接的方法, 包括以下步驟:
判断终端当前是否激活了选择性 IP流量分流连接;
判断所述终端的核心网控制节点是否改变;
确定所述终端的服务网关的选择方法并重新选择服务网关。
进一步地, 在为终端建立分组数据网络连接时, 若允许终端激活且激活选择性 IP 流量分流连接, 在所述终端的核心网控制节点中添加激活标识位; 则
在切换时具体根据是否添加激活标识位, 判断终端当前是否激活了选择性 IP流量 分流连接。
进一步地, 判断终端当前是否激活了选择性 IP流量分流连接得到选择性 IP流量 分流连接激活信息, 若所述终端的核心网控制节点改变, 将选择性 IP流量分流连接激 活信息发送给新的核心网控制节点; 则
具体由新的核心网控制节点确定所述终端的服务网关的选择方法并重新选择服务 网关。
进一步地, 在为终端建立分组数据网络连接时, 若不允许终端激活选择性 IP流量 分流连接, 不为终端激活选择性 IP流量分流连接, 不添加激活标识位。
进一步地, 在为终端建立分组数据网络连接时, 在所述终端的源核心控制网节点 中设置表示终端是否激活选择性 IP流量分流连接的标识位; 则
在切换时具体根据所述标识位,判断终端当前是否激活了选择性 IP流量分流连接。 进一步地, 在为终端建立分组数据网络连接时, 采用如下方式确定是否允许终端 激活选择性 IP流量分流连接:
如果终端的签约信息及本地配置信息都允许激活选择性 IP流量分流连接, 则表示 允许终端激活选择性 IP流量分流连接, 否则,表示不允许终端激活选择性 IP流量分流 连接。
进一步地, 确定所述终端的服务网关的选择方法并重新选择服务网关的方法为: 若终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经本地网 关建立的,获取与所述本地网关有 IP连接的新服务网关,将获取到的新服务网关作为重新 选择的服务网关。
进一步地, 所述与本地网关有 IP连接的服务网关通过使用域名系统或本地配置来获 取。
进一步地, 确定所述终端的服务网关的选择方法并重新选择服务网关的方法为: 若终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经本地网 关建立的, 采用原有的服务网关作为重新选择的服务网关。
一种在切换时保持选择性 IP流量分流连接的装置, 包括:
第一判断模块, 判断终端当前是否激活了选择性 IP流量分流连接;
第二判断模块, 判断所述终端的核心网控制节点是否改变;
选择模块, 用于在核心网控制节点未改变时, 确定所述终端的服务网关的选择方法 并重新选择服务网关。
进一步地, 所述装置还包括:
标识位添加模块, 用于在为终端建立分组数据网络连接时, 若允许终端激活且激 活选择性 IP流量分流连接, 在所述终端的核心网控制节点中添加激活标识位;
第一判断模块在切换时具体根据是否添加激活标识位, 判断终端当前是否激活了 选择性 IP流量分流连接。
进一步地, 第一判断模块判断终端当前是否激活了选择性 IP流量分流连接得到选 择性 IP流量分流连接激活信息, 所述装置还包括:
信息发送模块, 用于在所述终端的核心网控制节点改变时, 发送选择性 IP流量分流 连接激活信息给新的核心网控制节点。
进一步地, 所述装置还包括:
第三判断模块, 用于在为终端建立分组数据网络连接时, 若不允许终端激活选择性 IP 流量分流连接, 不为终端激活选择性 IP流量分流连接, 不添加激活标识位。 进一步地, 选择模块确定所述终端的服务网关的选择方法并重新选择服务网关的方 法为:
若终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经本地网 关建立的,获取与所述本地网关有 IP连接的新服务网关,将获取到的新服务网关作为重新 选择的服务网关。
进一步地, 选择模块确定所述终端的服务网关的选择方法并重新选择服务网关的方 法为:
若终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经本地网 关建立的, 釆用原有的服务网关作为重新选择的服务网关。
与现有技术相比, 本发明具有以下优点:
本发明的在切换时保持选择性 IP流量分流连接的方法及装置实施例,在为终端建立分 组数据网络连接的过程中, 核心网控制节点就会根据签约信息和配置信息来确定是否激活 选择性 IP流量分流连接, 并在核心网控制节点中设置对应的激活标识位。在切换进行过程 中,核心网控制节点只需要根据激活标识位来判断选择性 IP流量分流连接是否激活, 以确 定切换的后续中所需要进行的操作, 可以避免在切换时再次进行判断而增加切换的操作步 驟及时间。
另外, 核心网控制节点还可以根据激活标识位来确定服务网关是否重新选择以及如何 选择, 保证无论是不重新选择服务网关还是重新选择了服务网关, 所确定的服务网关能始 终与本地网关保持 IP连接, 从而保持选择性 IP流量分流连接的连续性, 避免因为切换而 造成选择性 IP流量分流连接的中断。 附图说明 图 1是本发明的在切换场景下保持选择性 IP流量分流连接的方法实施例一的流程图; 图 2是本发明的在切换场景下保持选择性 IP流量分流连接的方法实施例二的流程图; 图 3是本发明的在切换场景下保持选择性 IP流量分流连接的方法应用实例一的结构 图;
图 4是本发明的在切换时保持选择性 IP流量分流连接的装置实施例一的结构示意图; 图 5是本发明的在切换时保持选择性 IP流量分流连接的装置实施例二的结构示意图。 图 6是本发明的在切换时保持选择性 IP流量分流连接的装置实施例三的结构示意图。 具体实施方式 为使本发明的上述目的、 特征和优点能够更加明显易懂, 下面结合附图和具体实施方 式对本发明作进一步详细的说明。
参照图 1 , 示出本发明的在切换时保持选择性 IP流量分流连接的方法实施例一, 包括以下步骤:
步骤 101, 判断终端当前是否激活了选择性 IP流量分流连接。
当终端移动 (漫游) 时, 其可以从一个基站的覆盖区域向另一个基站的覆盖区域 移动, 即从源基站向目标基站移动。 在移动过程中, 源基站会向源核心网控制节点发 出切换请求。
如果终端激活了选择性 IP流量分流连接, 则表示终端当前有选择性 IP流量分流 连接, 在切换的时候则需要考虑选择性 IP流量分流连接的连续性, 例如, 在后续选择 服务网关时则需要注意与本地网关的 IP连接, 如果选择性 IP流量分流连接是经过服 务网关和分组数据网关建立的, 因为服务网关与分组数据网关均位于核心网中, 两者 之间具有 IP连接, 因此即使重新选择服务网关也仍然能够保证选择性 IP流量分流连 接的连续性; 如果选择性 IP流量分流连接是经本地网关建立的, 则重新选择的服务网 关与本地网关之间可能不具有 IP连接。 反之, 则说明当前终端没有选择性 IP流量分 流连接, 可以采用现有的切换流程的处理方式来进行后续操作。
步骤 102, 判断核心网控制节点是否改变。
终端的源核心网控制节点会根据自己当前的负荷, 来判断是否需要重新选择核心 网控制节点作为终端的目标基站的核心网控制节点, 如果是, 则将会选择新的核心网 控制节点作为终端的目标基站的核心网控制节点, 反之, 则仍然采用源核心网控制节 点为目标基站的核心网控制节点。 在进行后续操作之前, 首先判断核心网控制节点是 否改变, 如果改变, 则执行步骤 103, 反之, 则直接执行步驟 104。
步骤 103 , 将选择性 IP流量分流连接激活信息发送给新的核心网控制节点。 判断终端当前是否激活了选择性 IP流量分流连接得到选择性 IP流量分流连接激 活信息,源核心网控制节点将选择性 IP流量分流连接激活信息发送给目标核心网控制 节点, 由 标核心网控制节点确定终端的服务网关的选择方法并重新选择服务网关。
步骤 104, 确定服务网关的选择方法并重新选择服务网关。
如果目标基站的核心网控制节点发生了改变, 则由目标核心网控制节点重新选择 服务网关, 如果目标基站的核心网控制节点没有改变, 则由源核心网控制节点重新选 择服务网关。
在确定服务网关的选择方法并重新选择服务网关时, 需要考虑终端当前是否激活 选择性 IP流量分流连接。
如果终端激活了选择性 IP流量分流连接, 且终端激活的选择性 IP流量分流连接是 经本地网关建立的, 目标基站的核心网控制节点重新选择服务网关的方式包括如下两 种:
第一种方式为: 目标基站的核心网控制节点获取与本地网关有 IP连接的新服务网 关作为重新选择的服务网关, 这里的新服务网关为不同于终端的原服务网关的网关。 具体的可以使用域名系统 (DNS , Domain Name System ) 或本地配置来获取与终端的 本地网关有 IP连接的新服务网关。
第二种方式为: 目标基站的核心网控制节点仍然采用原有的服务网关作为重新选 择的服务网关, 这里的原有服务网关为切换前终端连接的服务网关。
前述两种服务网关的选择方式中, 第一种方式会占用较多的信令资源, 但是可以 使负载均衡, 另外, 新的服务网关可能距离终端当前位置比较近, 那么当终端在当前 位置附近移动时, 就不需要再重新选择服务网关了, 因此可以减少服务网关变化次数。 后一种方式则可以避免占用信令资源。 具体采用哪一种方式可以由运营商确定, 也可 以在实际操作中可以根据资源的实际情况来确定。
在确定服务网关后, 再进行切换后续操作。
如果重新选择的服务网关为新获取的服务网关, 则采用新获取的服务网关进行切 换后续的操作, 如果重新选择的仍然是原有的服务网关, 则采用原有的服务网关进行 切换后续的操作。
参照图 2, 示出本发明的在切换时保持选择性 IP流量分流连接的方法实施例二, 在实施例一的步骤 101之前, 还包括:
步骤 201, 添加表示选择性 IP流量分流连接激活与否的激活标识位。
在为终端建立分组数据网络连接时, 在源核心网控制节点中添加表示是否允许终 端激活选择性 IP流量分流连接的标识位。 在后续切换的过程中, 可以直接通过该标识 位来判断选择性 IP流量分流连接是否激活, 避免重新进行判断, 简化了切换的后续操 作, 且节省了切换时间。
其中, 源核心网控制节点从归属用户服务器 (HSS, Home Subscriber Server )获 取签约信息, 然后再获取本地配置信息, 源核心网控制节点会根据签约信息及本地配 置信息来判断是否激活选择性 IP流量分流连接。如果签约信息和本地配置信息都允许 激活选择性 IP流量分流连接, 才表示允许激活, 反之, 则表示不允许激活。 当签约信 息和本地配置信息都允许激活选择性 IP流量分流连接时,在源核心网控制节点中会设 置选择性 IP流量分流连接激活标识位,如果签约信息与本地配置信息至少其中之一不 允许激活选择性 IP流量分流连接, 则不增加激活标识位。
在前述方法实施例中,在核心网控制节点会根据选择性 IP流量分流连接的激活信 息, 来确定服务网关的选择方法并重新选择服务网关, 首先判断是否需要重新选择服 务网关, 如果不需要则不重新选择, 如果需要, 再重新选择, 可以减少不必要的操作。 进一步地, 在核心网控制节点重新选择服务网关的时候, 如果终端激活选择性 IP流量 分流连接, 且激活的选择性 IP流量分流连接是经本地网关建立的, 核心网控制节点首选 会获取与本地网关有 IP连接的新服务网关作为重新选择的服务网关,保证重新选择的 服务网关与本地网关之间具有 IP连接, 从而保持选择性 IP流量分流连接的连续性, 避免在切换过程中出现中断。
另外, 通过在为终端建立分组数据网络连接时, 就在源核心网控制节点中设置表 示选择性 IP流量分流连接激活与否的标识位, 在后续切换的过程中, 只需要根据激活 标识位便可以判断是否激活了选择性 IP流量分流连接, 而无需进行再次判断, 筒化了 切换操作过程, 且节省了切换所需要花费时间。
参照图 3 , 以 LTE系统中基于 S 1接口的切换过程对前述方法进行说明。 首先, 在
LTE 系统的分组数据网络连接建立的过程中, 核心网控制节点根据归属用户服务器中 的签约信息和本地配置信息确定需要激活选择性 IP流量分流连接,则在核心网控制节 点的 EPS承载上下文 EPS bearer Contexts中设置一个选择性 IP流量分流连接的激活标 识位。
在切换过程中, 源核心网控制节点 ( source MME )根据 EPS bearer Contexts中的 选择性 IP流量分流连接的激活标识位, 判断当前已经激活了选择性 IP流量分流连接, 而且判断出需要更换到目标核心网控制节点( target MME ), 因此源核心网控制节点将 选择性 IP流量分流连接激活信息发送给目标核心网控制节点。 其中, 源核心网控制节 点通过在 Forward Relocation Request消息中增力口一个标识位的方式, 来告知目标核心 网控制节点当前终端已经激活了选择性 IP流量分流连接。 目标核心网控制节点接收到 该激活消息后, 经过判断, 选择仍然采用原有的服务网关, 然后进行切换的后续操作。
参照图 4 , 示出本发明实施例一的在切换时保持选择性 IP 流量分流连接的装置 100, 包括第一判断模块 20、 第二判断模块 30及选择模块 50。
第一判断模块 20 , 用于判断终端当前是否激活了选择性 IP流量分流连接, 并把 判断结果传递给第二判断模块 30。
第二判断模块 30, 用于判断所述终端的核心网控制节点是否改变。
选择模块 50 , 用于在核心网控制节点未改变时, 确定所述终端的服务网关的选择 方法并重新选择服务网关。 如果核心网控制节点已经改变, 则由新的核心网控制节点 来进行服务网关的重新选择, 如果仍然采用原有的核心网控制节点, 则由源核心网控 制节点的选择模块 50来进行服务网关的重新选择。 选择模块 50可以选择获取与本地 网关有 IP连接的服务网关作为新的服务网关。具体的可以使用域名系统( DNS , Domain Name System )或本地配置来获取与本地网关有 IP连接的服务网关。 选择模块 50也可 以仍然采用原有的服务网关作为新的服务网关。 参照图 5, 进一步地, 在切换时保持选择性 IP流量分流连接的装置 100还包括标 识位添加模块 10和信息发送模块 40。
标识位添加模块 10 , 用于在为终端建立分组数据网络连接时, 若允许终端激活且 激活选择性 IP流量分流连接, 在所述终端的核心网控制节点中添加激活标识位。 第一 判断模块 20可以通过标识位添加模块 10添加的激活标识位信息来识别当前是否激活 了选择性 IP流量分流连接。
信息发送模块 40 , 用于在所述终端的核心网控制节点改变时, 发送选择性 IP流 量分流连接激活信息给新的核心网控制节点。如果第二判断模块 30判断的结果为核心 网控制节点发生了改变, 则信息发送模块 40会将选择性 IP流量分流连接激活信息传送 给新的核心网控制节点, 如果第二判断模块 30判断的结果为核心网控制节点没有发生改 变, 仍然采用原有的核心网控制节点, 则信息发送模块 40则不会&出处理。 选择模块 50 会根据选择性 IP流量分流连接激活信息来确定服务网关的选择方法并重新选择服务网 关。
参照图 6, 进一步地, 在切换时保持选择性 IP流量分流连接的装置 100还包括第 三判断模块 60 , 用于判断是否激活选择性 IP流量分流连接, 并将判断结果传递给标识位 添加模块 10, 标识位添加模块 10根据第三判断模块 60的判断结果来添加激活标识位。 其 中, 第三判断模块 60根据签约信息和本地配置信息来确定是否激活选择性 IP流量分流连 接。
优选地,选择模块 50确定所述终端的服务网关的选择方法并重新选择服务网关的方 法为: 若终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经本地 网关建立的,获取与所述本地网关有 IP连接的新服务网关,将获取到的新服务网关作为重 新选择的服务网关。
优选地,选择模块 50确定所述终端的服务网关的选择方法并重新选择服务网关的方 法为: 若终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经本地 网关建立的, 采用原有的服务网关作为重新选择的服务网关。
本说明书中的各个实施例均采用递进的方式描述, 每个实施例重点说明的都是与 其他实施例的不同之处, 各个实施例之间相同相似的部分互相参见即可。 对于装置实 施例而言, 由于其与方法实施例基本相似, 所以描述的比较筒单, 相关之处参见方法 实施例的部分说明即可。
以上对本发明所提供的在切换时保持选择性 IP 流量分流连接的方法及装置进行 了详细介绍, 本文中应用了具体个例对本发明的原理及实施方式进行了阐述, 以上实 施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时, 对于本领域的一般 技术人员, 依据本发明的思想, 在具体实施方式及应用范围上均会有改变之处, 综上 所述, 本说明书内容不应理解为对本发明的限制。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程 序产品。 因此, 本发明可采用完全硬件实施例、 完全软件实施例、 或结合软件和硬件 方面的实施例的形式。 而且, 本发明可采用在一个或多个其中包含有计算机可用程序 代码的计算机可用存储介质 (包括但不限于磁盘存储器、 CD-ROM、 光学存储器等) 上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品的流程 图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的 每一流程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供 这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处 理设备的处理器以产生一个机器, 使得通过计算机或其他可编程数据处理设备的处理 器执行的指令产生用于实现在流程图一个流程或多个流程和 /或方框图一个方框或多 个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定 方式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括 指令装置的制造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计 算机或其他可编程设备上执行一系列操作步驟以产生计算机实现的处理, 从而在计算 机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或 方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基本创造 性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为 包括优选实施例以及落入本发明范围的所有变更和修改。
显然, 本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发 明实施例的精神和范围。 这样, 倘若本发明实施例的这些修改和变型属于本发明权利 要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、一种在切换时保持选择性 IP流量分流连接的方法, 其特征在于, 包括以下步骤: 判断终端当前是否激活了选择性 IP流量分流连接;
判断所述终端的核心网控制节点是否改变;
确定所述终端的服务网关的选择方法并重新选择服务网关。
2、 如权利要求 1所述的方法, 其特征在于,
在为终端建立分组数据网络连接时, 若允许终端激活且激活选择性 IP流量分流连 接, 在所述终端的核心网控制节点中添加激活标识位; 则
在切换时具体根据是否添加激活标识位, 判断终端当前是否激活了选择性 IP流量 分流连接。
3、 如权利要求 1 所述的方法, 其特征在于, 判断终端当前是否激活了选择性 IP 流量分流连接得到选择性 IP流量分流连接激活信息,若所述终端的核心网控制节点改 变, 将选择性 IP流量分流连接激活信息发送给新的核心网控制节点; 则
具体由新的核心网控制节点确定所述终端的服务网关的选择方法并重新选择服务 网关。
4、 如权利要求 2所述的方法, 其特征在于,
在为终端建立分组数据网络连接时,若不允许终端激活选择性 IP流量分流连接, 不 为终端激活选择性 IP流量分流连接, 不添加激活标识位。
5、 如权利要求 1所述的方法, 其特征在于,
在为终端建立分组数据网络连接时, 在所述终端的源核心控制网节点中设置表示 终端是否激活选择性 IP流量分流连接的标识位; 则
在切换时具体根据所述标识位,判断终端当前是否激活了选择性 IP流量分流连接。
6、 如权利要求 2、 4或 5所述的方法, 其特征在于, 在为终端建立分组数据网络 连接时, 采用如下方式确定是否允许终端激活选择性 IP流量分流连接:
如果终端的签约信息及本地配置信息都允许激活选择性 IP流量分流连接, 则表示 允许终端激活选择性 IP流量分流连接, 否则,表示不允许终端激活选择性 IP流量分流 连接。
7、 如权利要求 1至 5任一项所述的方法, 其特征在于, 确定所述终端的服务网关的 选择方法并重新选择服务网关的方法为:
若为终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经过本 地网关建立的,获取与所述本地网关有 IP连接的新服务网关,将获取到的新服务网关作为 重新选择的服务网关。
8、 如权利要求 7所述的方法, 其特征在于, 所述与本地网关有 IP连接的服务网关通 过使用域名系统或本地配置来获取。
9、 如权利要求 1至 5任一项所述的方法, 其特征在于, 确定所述终端的服务网关的 选择方法并重新选择服务网关的方法为:
若为终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经过本 地网关建立的, 采用原有的服务网关作为重新选择的服务网关。
10、 一种在切换时保持选择性 IP流量分流连接的装置, 其特征在于, 包括: 第一判断模块, 判断终端当前是否激活了选择性 IP流量分流连接;
第二判断模块, 判断所述终端的核心网控制节点是否改变;
选择模块, 用于在核心网控制节点未改变时, 确定所述终端的服务网关的选择方法 并重新选择服务网关。
11、 如权利要求 10所述的装置, 其特征在于, 所述装置还包括:
标识位添加模块, 用于在为终端建立分组数据网络连接时, 若允许终端激活且激 活选择性 IP流量分流连接, 在所述终端的核心网控制节点中添加激活标识位;
第一判断模块在切换时具体根据是否添加激活标识位, 判断终端当前是否激活了 选择性 IP流量分流连接。
12、 如权利要求 10所述的装置, 其特征在于, 第一判断模块判断终端当前是否激活 了选择性 IP流量分流连接得到选择性 IP流量分流连接激活信息, 所述装置还包括: 信息发送模块, 用于在所述终端的核心网控制节点改变时, 发送选择性 IP流量分流 连接激活信息给新的核心网控制节点。
13、 如权利要求 10至 12任一项所述的装置, 其特征在于, 所述装置还包括: 第三判断模块, 用于在为终端建立分组数据网络连接时, 若不允许终端激活选择性 IP 流量分流连接, 不为终端激活选择性 IP流量分流连接, 不添加激活标识位。
14、 如权利要求 10至 12任一项所述的装置, 其特征在于, 选择模块确定所述终端的 服务网关的选择方法并重新选择服务网关的方法为:
若终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经本地网 关建立的,获取与所述本地网关有 IP连接的新服务网关,将获取到的新服务网关作为重新 选择的服务网关。
15、 如权利要求 10至 12任一项所述的装置, 其特征在于, 选择模块确定所述终端的 服务网关的选择方法并重新选择服务网关的方法为:
若终端激活了选择性 IP流量分流连接, 且激活的选择性 IP流量分流连接是经本地网 关建立的, 釆用原有的服务网关作为重新选择的服务网关。
PCT/CN2012/071246 2011-02-17 2012-02-17 在切换时保持选择性ip流量分流连接的方法及装置 WO2012109998A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110039752.5 2011-02-17
CN201110039752.5A CN102158915B (zh) 2011-02-17 2011-02-17 在切换时保持选择性ip流量分流连接的方法及装置

Publications (1)

Publication Number Publication Date
WO2012109998A1 true WO2012109998A1 (zh) 2012-08-23

Family

ID=44440016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/071246 WO2012109998A1 (zh) 2011-02-17 2012-02-17 在切换时保持选择性ip流量分流连接的方法及装置

Country Status (2)

Country Link
CN (1) CN102158915B (zh)
WO (1) WO2012109998A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102158915B (zh) * 2011-02-17 2014-07-09 大唐移动通信设备有限公司 在切换时保持选择性ip流量分流连接的方法及装置
CN104717705B (zh) 2013-12-12 2019-08-23 中兴通讯股份有限公司 一种处理选定的ip流量卸载连接的方法及基站
CN104853344B (zh) 2014-02-17 2019-10-29 中兴通讯股份有限公司 一种选择分流网关的方法和控制器
CN110213798B (zh) * 2019-07-17 2022-10-25 京信网络系统股份有限公司 一种基于Femto网关的分流方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010121771A2 (en) * 2009-04-20 2010-10-28 Panasonic Corproation Route optimization of a data path between communicating nodes using a route optimization agent
WO2010128773A2 (en) * 2009-05-05 2010-11-11 Lg Electronics Inc. Server for control plane at mobile communication network and method for controlling establishment of connection thereof
CN101925064A (zh) * 2010-06-12 2010-12-22 中兴通讯股份有限公司 一种H(e)NB系统的SIPTO决策方法和装置
CN102158915A (zh) * 2011-02-17 2011-08-17 大唐移动通信设备有限公司 在切换时保持选择性ip流量分流连接的方法及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1753198A1 (en) * 2005-08-09 2007-02-14 Alcatel Voice over IP Network Architecture
CN101296496B (zh) * 2007-04-29 2013-06-05 中兴通讯股份有限公司 一种跟踪区更新或切换过程中避免资源被错误释放的方法
CN101572855B (zh) * 2008-04-30 2011-09-14 华为技术有限公司 一种为终端选择网关的方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010121771A2 (en) * 2009-04-20 2010-10-28 Panasonic Corproation Route optimization of a data path between communicating nodes using a route optimization agent
WO2010128773A2 (en) * 2009-05-05 2010-11-11 Lg Electronics Inc. Server for control plane at mobile communication network and method for controlling establishment of connection thereof
CN101925064A (zh) * 2010-06-12 2010-12-22 中兴通讯股份有限公司 一种H(e)NB系统的SIPTO决策方法和装置
CN102158915A (zh) * 2011-02-17 2011-08-17 大唐移动通信设备有限公司 在切换时保持选择性ip流量分流连接的方法及装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Domain Name System Procedures; Stage 3(Release 10)", 3GPP TS 29.303 V10.0.0, 18 December 2010 (2010-12-18), Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Specs/archive/29_series/29.303/> *
"General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access", 3GPP TS 23.401 V10.2.1, 4 January 2011 (2011-01-04), Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Specs/archive/23_series/23.401/> *
ERICSSON ET AL.: "Introduction of SIPTO in EPS", 3GPP S2-102886, 14 May 2010 (2010-05-14), Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg-sa/WG2_Arch/TSGS2_79_Kyoto/Docs/> *
ERICSSON ET AL.: "SIPTO support in DNS", 3GPP C4-102755, 19 October 2010 (2010-10-19), Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ct/WG4_protocollars_ex-CN4/TSGCT4_50bis_Barcelona/Docs> *

Also Published As

Publication number Publication date
CN102158915A (zh) 2011-08-17
CN102158915B (zh) 2014-07-09

Similar Documents

Publication Publication Date Title
EP3979707B1 (en) Method for initiating user plane path modification in a communications system
US9516569B2 (en) Handover method, system, and device
US10206152B2 (en) Attachment, handover, and traffic offloading between 3GPP RANS and Wi-Fi RANS
WO2019158109A1 (zh) 一种网元的选择方法及装置
US10517033B2 (en) Switching between network based and relay based operation for mission critical voice call
DK2751966T3 (en) Methods and nodes for the selection of a target core network for the transfer of a voice session of a terminal,
KR101773336B1 (ko) 통신 시스템에서 게이트웨이 노드 재선택을 지원하기 위한 장치 및 방법
EP3001735B1 (en) Service offloading method and base station
CN101730172B (zh) 基于接入网选择的切换方法与装置
EP2813096B1 (en) Method and apparatus for autonomous operation in cellular-based local area networks
WO2014183715A1 (zh) 一种网关更新信息通知方法及控制器
WO2009006774A1 (en) Interior hangover method in a system
WO2014108056A1 (zh) 一种异构网络切换方法、装置及系统
JP6699913B2 (ja) 音声サービスを実行している端末を処理するための方法および装置、通信システム、プログラムならびにコンピュータ可読記憶媒体
CN113767672A (zh) 用于在插入中间会话管理功能之后管理无线通信的移动通信核心网络装置及方法
US11523310B2 (en) Redirection method, communications system, and communications apparatus
WO2012171403A1 (zh) 一种支持多接口多连接通信的方法和系统
WO2012110000A1 (zh) 家庭基站下建立选择性ip流量分流连接的方法及装置
WO2011076063A1 (zh) Lipa或sipto管理方法、装置和系统
WO2012109998A1 (zh) 在切换时保持选择性ip流量分流连接的方法及装置
JP6185980B2 (ja) Lteにおけるcdma2000システムのシェアリング可能化
WO2015123945A1 (zh) 最优路径的建立方法、mme及网关、计算机存储介质
WO2014146500A1 (zh) 无线接入网的切换、切换处理方法及装置
WO2012094799A1 (zh) 一种应用isr机制的处理方法及用户设备
WO2014063337A1 (zh) 系统间空口连接重定向的方法、设备和系统

Legal Events

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

Ref document number: 12746800

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12746800

Country of ref document: EP

Kind code of ref document: A1