CN102026401B - Mobility processing method and device - Google Patents
Mobility processing method and device Download PDFInfo
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- CN102026401B CN102026401B CN200910176129.7A CN200910176129A CN102026401B CN 102026401 B CN102026401 B CN 102026401B CN 200910176129 A CN200910176129 A CN 200910176129A CN 102026401 B CN102026401 B CN 102026401B
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- H04W8/02—Processing 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
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Abstract
The invention discloses a mobility processing method and a mobility processing device. The method comprises the following steps that: the original wireless side network element judges whether an achievable interface exists between a target wireless side network element and a local internet protocol access function implementation unit or not according to information of the target wireless side network element; and the original wireless side network element reports the interface capability to a core network mobility management unit according to a determined result to ensure that the core network mobility management unit can update or release a local internet protocol access link according to the interface capability, wherein the interface capability is used for indicating that whether the achievable interface exists between the target wireless side network element and the local internet protocol access function implementation unit or not. By the method and the device, local internet protocol (IP) access mobility is realized.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of mobility treating method and device.
Background technology
In order to keep 3-G (Generation Three mobile communication system) in the competitiveness of the communications field, for user provides, speed is faster, lower, the more personalized Mobile Communication Service of time delay, simultaneously, reduce the operation cost of operator, third generation partner program (3rd Generation PartnershipProject, referred to as 3GPP) standard operation group is just being devoted to the research of evolved packet system (EvolvedPacket System, referred to as EPS).
Fig. 1 is according to the structural representation of the evolution grouping domain system of correlation technique, and as shown in Figure 1, whole EPS system is divided into wireless access network and core net two parts.In core net, comprised home subscriber server (Home Subscriber Server, referred to as HSS), Mobility Management Entity (Mobility Management Entity, referred to as MME), service universal grouping wireless business supporting node (Serving General Packet Radio ServiceSupport Node, referred to as SGSN), policy charging rule function (Policy andCharging Rule Function, referred to as PCRF), gateway (Serving Gateway, referred to as S-GW), packet data gateway (PDN Gateway, referred to as P-GW) and packet data network (Packet Data Network, packet data network).Below detailed functions:
Home subscriber server, is the permanent storage place of user contracting data, is positioned at the signing home network of user.
MME, be user contracting data at the storage place of current network, be responsible for the Non-Access Stratum signaling management of terminal to network, the mobile management of the safety verification function of terminal, terminal, the tracking under user's idle pulley and paging management function and bearer management.
S GSN, GSM EDGE wireless access network (GSM EDGE radio accessnetwork, referred to as GERAN) and global system for mobile communications wireless access network (Universal Mobile Telecommunication System Radio AccessNetwork, referred to as UTRAN) the business support point of user access core network network, similar with MME in function, be responsible for user's the functions such as position renewal, paging management and bearer management.
Gateway, is the gateway that core net arrives wireless system, is responsible for terminal to the user plane bearer of core net, the data buffer storage under terminal idle pulley, function, Lawful Interception and packet routing and the forwarding capability of network side initiating business request; Gateway is responsible for the situation that counting user terminal is used wireless network, and produces the ticket that terminal is used wireless network, sends charging gateway to.
Packet data gateway, it is the gateway of evolution system and this system external packet data network, it is connected on internet and packet data network, the functions such as Internet protocol (Internet Protocol, referred to as the IP) address assignment of responsible terminal, billing function, grouping packet filtering, policy control.
Packet data network, is the IP operation network of operator, and this network is served for user provides IP by the core net of operator.
Policy charging rule functional entity is the server of being responsible for providing charging control, online credit control, thresholding control, service quality (Quality of Service, referred to as QoS) tactful aspect rule in evolution system.
Wireless access network, by evolution base station (E-UTRAN NodeB, referred to as eNB) and 3G radio network controller (Radio Network Control, referred to as RNC) form, it is mainly responsible for the transmitting-receiving of wireless signal, by air interface and terminal, contact Radio Resource, scheduling of resource, the access control of management air interface.
Above-mentioned SGSN is the SGSN upgrading, can support and gateway between S4 interface, and and mobility management unit between adopt GTPv2 agreement to carry out intercommunication.And for supporting the SGSN of 3G core net the PS territory network architecture and Fig. 1 different.Now SGSN adopts gn interface to be connected with MME, and intercommunication adopts GTPv1 agreement.SGSN can not be connected with gateway, is connected to Gateway GPRS Support Node (Gateway GPRS Support Node, referred to as GGSN) directly carries out packet data network access by gn interface.
Home eNodeB (Home NodeB, referred to as HNB) or Home eNodeB (the Home eNodeB of evolution, be called for short HeNB) be small-sized, the lower powered base station of a class, dedicated resources as certain user, being deployed in the private sites such as family, group, company or school uses, to user, higher service rate be provided and reduce and use the needed expense of high rate services, making up the deficiency that existing distributed cellular radio communication system covers simultaneously.The advantage of Home eNodeB is economical, convenient, low-power output, plug and play, broadband access, use single-mode terminal etc.
Fig. 2 is the wireless side network element core network access schematic diagram one according to correlation technique, as shown in Figure 2, Home eNodeB can be directly connected to core network, also can provide the providing powerful support for of local IP access technology by setting up local gateway, and local gateway can close and establish with wireless side network element.
Fig. 3 is the wireless side network element core network access schematic diagram two according to correlation technique, as shown in Figure 3, Home eNodeB can be linked into core network by this logical ne of home base-station gateway, wherein, home base-station gateway major function is: the fail safe of checking base station from home, process the registration of base station from home, and base station from home is carried out to operation maintenance management, according to Carrier Requirements configuration and control base station from home, be responsible for the data of exchcange core net and base station from home.
Fig. 4 is the wireless side network element core network access schematic diagram three according to correlation technique, as shown in Figure 4, in order to realize local IP access function, has set up local gateway.Setting up that local access network closes can provide providing powerful support for local IP access technology, local gateway can and wireless side network element close and establish or near wireless side network element (external), also can and home base-station gateway close and establish or near home base-station gateway (external).Local gateway can be local SGW (Local SGW, referred to as L-SGW), local PGW (Local PGW, referred to as L-PGW), local GGSN (Local GGSN, referred to as L-GGSN), external L-GW (Local GW) etc.
The local IP access relating to herein can refer to LIPA, its English full name is LocalIPAccess, but be not restricted to this specific unique appellation, it is one of following that the concrete application of local IP access can also comprise: the triage operator of local IP access subscriber's local network, local IP access company local network, local IP access the Internet, the Internet or company or home business.
Fig. 5 is according to the data flow path schematic diagram of the local IP access of correlation technique and the access of traditional IP core network, as shown in Figure 5, in mobile communications network framework, the data flow path of local IP access and the access of traditional IP core network.User for supporting local IP access, can set up traditional IP core network visit data path and local IP access data path.For the connection of local IP access, local IP access data path closes (L-SGW, L-PGW, L-GGSN) from terminal to wireless side network element to local access network, and transfer of data is without core net.In order to realize this locality access of terminal to other IP devices of home network or internet, can set up two connections, article one local IP access data path is directly accessed the Internet (the Internet LIPA connection).Second local IP access data path is directly accessed other IP devices of home network (home network LIPA connection).
Data flow path schematic diagram when Fig. 6 is mobile according to the local IP access link of correlation technique, as shown in Figure 6, when user connects and initiates after business, for improving user's experience and satisfaction, Carrier Requirements network can provide business continuance.Now require the connection of user's foundation to there is mobility.In Long Term Evolution (Long-Term Evolution, referred to as LTE) mobile communications network framework, after fast mobile terminal, the data flow path of local IP access and the access of traditional IP core network.Particularity (data flow is directly from the transmission of wireless side network element) due to local IP access connection, after fast mobile terminal, the data flow of local IP access need to be through Target Wireless side network element to former local packet data gateway (L-PGW), wherein local service gateway (L-SGW) both can use former also can use new, local gateway is positioned at former wireless side network element or in its vicinity external, therefore, local IP access connects and whether to have mobility and depend between these they whether have interface.But core net does not also have solution can judge this relation in prior art, so prior art cannot realize the mobility that local IP access connects.
Summary of the invention
For in correlation technique because core net can not judge that thereby whether having interface between former wireless side network element and Target Wireless side network element causes realizing local IP access and connect ambulant problem and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of mobility processing scheme, to address the above problem.
To achieve these goals, according to an aspect of the present invention, a kind of mobility treating method is provided, and the method comprises: whether former wireless side network element judges according to the information of Target Wireless side network element that Target Wireless side network element and local internet protocol access function realize between unit and exist and can reach interface; Former wireless side network element reports interface capability according to judged result to core network mobility administrative unit, so that core network mobility administrative unit is carried out renewal or the releasing operation of local internet protocol access links according to interface capability, wherein, whether interface capability is used to indicate Target Wireless side network element and local internet protocol access function and realizes between unit and exist and can reach interface.
Preferably, former wireless side network element reports interface capability to comprise according to judged result to core network mobility administrative unit: former wireless side network element sends handover request message according to judged result to core network mobility administrative unit, and carries therein interface capability; Or former wireless side network element sends RELOCATION REQUEST message according to judged result to core network mobility administrative unit, and carries therein interface capability; Or former wireless side network element sends the handover request message that carries interface capability to Target Wireless side network element according to judged result, so that Target Wireless side network element reports core network mobility administrative unit by path exchanging request message by interface capability.
Preferably, former wireless side network element according to judged result after core network mobility administrative unit reports interface capability, said method also comprises: core network mobility administrative unit receiving interface ability, and according to interface capability, judge that Target Wireless side network element and local internet protocol access function realize between unit and whether exist and can reach interface; Core network mobility administrative unit is carried out renewal or the releasing operation of local internet protocol access links according to judged result.
Preferably, renewal or releasing operation that core network mobility administrative unit is carried out local internet protocol access links according to judged result comprise: if judgment result is that, be that core network mobility administrative unit is carried out the renewal operation of local internet protocol access links; If the determination result is NO, core network mobility administrative unit is carried out the releasing operation of local internet protocol access links.
Preferably, core network mobility administrative unit is preserved sign or the address information that local internet protocol access function realizes unit in advance, to carry out renewal or the releasing operation of local internet protocol access links according to sign or address information.
Preferably, local internet protocol access function realizes unit and comprises one of following: local service gateway, local access network close.
Preferably, former wireless side network element comprises one of following: Home eNodeB, macro base station, femto gateway.
Preferably, the information of Target Wireless side network element comprises one of at least following: closed user group sign under network element ID, network element.
Preferably, core network mobility administrative unit comprises one of following: Mobility Management Entity, service universal grouping wireless business supporting node.
To achieve these goals, according to another aspect of the present invention, a kind of mobility processing unit is provided, this device comprises: whether judge module, exist and can reach interface for judging that according to the information of Target Wireless side network element Target Wireless side network element and local internet protocol access function realize between unit; Reporting module, for reporting interface capability according to judged result to core network mobility administrative unit, so that core network mobility administrative unit is carried out renewal or the releasing operation of local internet protocol access links according to interface capability, wherein, whether interface capability is used to indicate Target Wireless side network element and local internet protocol access function and realizes between unit and exist and can reach interface.
By the present invention, whether adopt wireless side network element to judge according to the information of Target Wireless side network element that itself and local IP access function realize there is the interface that can reach and interface capability is reported to core network mobility administrative unit so that core network mobility administrative unit is carried out renewal that local IP access links or the method for releasing operation according to interface capability between unit, thereby solved core net, can not judge that between former wireless side network element and Target Wireless side network element, whether having interface cannot realize local IP access and connect ambulant problem, and then realize local IP access mobility.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the structural representation of the evolution grouping domain system of correlation technique;
Fig. 2 is the wireless side network element core network access schematic diagram one according to correlation technique;
Fig. 3 is the wireless side network element core network access schematic diagram two according to correlation technique;
Fig. 4 is the wireless side network element core network access schematic diagram three according to correlation technique;
Fig. 5 is according to the data flow path schematic diagram of the local IP access of correlation technique and the access of traditional IP core network;
Data flow path schematic diagram when Fig. 6 is mobile according to the local IP access link of correlation technique;
Fig. 7 is according to the flow chart of the mobility treating method of the embodiment of the present invention;
Fig. 8 be according to the embodiment of the present invention for the interaction diagrams of LTE system S1 handoff procedure local IP access mobility processing mode one;
Fig. 9 is according to the interaction diagrams of the LTE system S1 handoff procedure local IP access mobility processing mode two of the embodiment of the present invention;
Figure 10 is according to the interaction diagrams of the gprs system handoff procedure local IP access mobility processing mode of the embodiment of the present invention;
Figure 11 is according to the interaction diagrams of the LTE system X2 handoff procedure local IP access mobility processing mode one of the embodiment of the present invention;
Figure 12 is according to the interaction diagrams of the LTE system X2 handoff procedure local IP access mobility processing mode two of the embodiment of the present invention;
Figure 13 is according to the structured flowchart of the mobility processing unit of the embodiment of the present invention;
Figure 14 is according to the preferred structure block diagram of the mobility processing unit of the embodiment of the present invention.
Embodiment
Functional overview
Consider in correlation technique that core net can not judge that thereby between former wireless side network element and Target Wireless side network element, whether having interface cannot realize local IP access and connect ambulant problem, the embodiment of the present invention provides a kind of mobility processing scheme, utilize former wireless side network element to judge according to the information of Target Wireless side network element that itself and local IP access function realize between unit and whether exist and can reach interface, and interface capability is reported to core network mobility administrative unit; Core network mobility administrative unit is carried out the renewal of local IP access link or releasing operation to realize local IP access mobility according to interface capability.
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Embodiment of the method
According to embodiments of the invention, provide a kind of mobility treating method.Fig. 7 is according to the flow chart of the mobility treating method of the embodiment of the present invention, as shown in Figure 7, comprises that following step S702 is to step S704:
Step S702, whether former wireless side network element judges according to the information of Target Wireless side network element that Target Wireless side network element and local internet protocol access function realize between unit and exists and can reach interface.Wherein, former wireless side network element comprises Home eNodeB, macro base station, femto gateway etc.
Wherein, the information of Target Wireless side network element can comprise following one of at least: closed user group sign under network element ID, network element; Local internet protocol access function realizes unit and can comprise one of following: former wireless side network element (close and establish with local access network) or local access network close (singly putting).
Step S704, former wireless side network element reports interface capability according to judged result to core network mobility administrative unit, so that core network mobility administrative unit is carried out renewal or the releasing operation of local internet protocol access links according to interface capability, wherein, whether interface capability is used to indicate Target Wireless side network element and local internet protocol access function and realizes between unit and exist and can reach interface.
Wherein, it is one of following that above-mentioned core network mobility administrative unit can comprise: MME, SGSN, and core network mobility administrative unit preserves sign or address information that local internet protocol access function realizes unit in advance, to carry out renewal or the releasing operation of local internet protocol access links according to sign or address information.
Particularly, former wireless side network element reports interface capability to comprise one of following mode according to judged result to core network mobility administrative unit:
Mode one: former wireless side network element sends handover request message according to judged result to core network mobility administrative unit, and carries therein interface capability.
Mode two: former wireless side network element sends RELOCATION REQUEST message according to judged result to core network mobility administrative unit, and carries therein interface capability.
Mode three: former wireless side network element sends the handover request message that carries interface capability to Target Wireless side network element according to judged result, so that Target Wireless side network element reports core network mobility administrative unit by path exchanging request message by interface capability.
Former wireless side network element according to judged result after core network mobility administrative unit reports interface capability, said method also comprises: core network mobility administrative unit receiving interface ability, and according to interface capability, judge that Target Wireless side network element and local internet protocol access function realize between unit and whether exist and can reach interface; Core network mobility administrative unit is carried out renewal or the releasing operation of local internet protocol access links according to judged result.
Wherein, renewal or releasing operation that core network mobility administrative unit is carried out local internet protocol access links according to judged result comprise: if judgment result is that, be that core network mobility administrative unit is carried out the renewal operation of local internet protocol access links; If the determination result is NO, core network mobility administrative unit is carried out the releasing operation of local internet protocol access links.
Below in conjunction with example, the implementation procedure of the embodiment of the present invention is described in detail.
Embodiment mono-
Fig. 8 be according to the embodiment of the present invention be the interaction diagrams of LTE system S1 handoff procedure local IP access mobility processing mode one, as shown in Figure 8, the S802 comprising the steps is to step S818:
Step S802, terminal periodic detects the wireless signal of this community and other neighbor cells, with the former wireless side network element of offering of measurement report in form.When the cell signal that the current terminal of former wireless side NE Discovery accesses can not so just select an applicable Target Wireless side network element of signal strength signal intensity to initiate S1 handoff procedure for user provides connection lower than threshold value.
Step S804, whether former wireless side network element judges according to Target Wireless side net element information that itself and local IP access function realize between unit and has configured and can reach interface.Wherein the information of Target Wireless side network element includes but not limited to network element ID, the affiliated closed user group sign of network element etc.Wherein local IP access function realizes unit and can be: former wireless side network element (close and establish with local access network) or local access network close (singly putting) (that is, above-mentioned steps S702).
Step S806, former wireless side network element reports interface capability (that is, above-mentioned steps S704) in the handover request message sending to MME.
Step S808, according to interface capability, indication determines whether to support the mobility of LIPA the foundation that indicating target wireless side network element carries out respective wireless carrying to MME.
Step S810a, can reach interface if MME learns between former wireless side network element and Target Wireless side network element to exist, and can support the mobility of LIPA link, and MME sets up LIPA with regard to indicating target wireless side network element and core net is carried corresponding radio bearer so.
Step S812a, MME carries address, local access network pass, the uplink tunnel sign of IAD and the information such as Qos parameter that will set up radio bearer that former wireless side network element connects in the handover request message sending to Target Wireless side network element, gets through the data feedback channel of transfer of data.
Step S814a, Target Wireless side network element is that resource reservation is carried out in LIPA carrying, by switch acknowledgment message by the address of Target Wireless side network element and downlink tunnel mark band to MME.
Step S816a, MME informs former local IAD (that is, the renewal of local internet protocol access links operation) by bearer update process by wireless side network element address and downlink tunnel sign, gets through the down going channel of transfer of data.
Step S810b, if MME learns between former wireless side network element and Target Wireless side network element and does not exist and can reach interface, can not support the mobility of LIPA link, MME sets up core net with regard to indicating target wireless side network element and carries corresponding radio bearer and discharge original LIPA link so.
Step S812b, the information such as Qos parameter that MME carries core net access gateway address, uplink tunnel sign and will set up radio bearer in the handover request message sending to Target Wireless side network element, get through the data feedback channel of transfer of data.
Step S814b, Target Wireless side network element is that resource reservation is carried out in core net carrying, by switch acknowledgment message by the address of Target Wireless side network element and downlink tunnel mark band to MME.
Step S816b, MME discharges (that is, the releasing operation of local internet protocol access links) by deleting load-bearing process by the original LIPA link of user.
Step S818, has continued follow-up handoff procedure.
Embodiment bis-
Fig. 9 is according to the interaction diagrams of the LTE system S1 handoff procedure local IP access mobility processing mode two of the embodiment of the present invention, as shown in Figure 9, now Target Wireless side network element is closed and is realized LIPA function by new local access network, specifically comprises that following step S902 is to step S918:
Step S902, terminal periodic detects the wireless signal of this community and other neighbor cells, with the former wireless side network element of offering of measurement report in form.When the cell signal that the current terminal of former wireless side NE Discovery accesses can not so just select an applicable Target Wireless side network element of signal strength signal intensity to initiate S1 handoff procedure for user provides connection lower than threshold value.
Step S904, whether former wireless side network element judges according to Target Wireless side net element information that itself and local IP access function realize between unit and has configured and can reach interface.Wherein the information of Target Wireless side network element includes but not limited to network element ID, the affiliated closed user group sign of network element etc.Wherein local IP access function realizes unit and can be: former wireless side network element (close and establish with local access network) or local access network close (singly putting).
Step S906, former wireless side network element reports interface capability in the handover request message sending to MME.
Step S908, according to interface capability, indication determines whether to support the mobility of LIPA the foundation that indicating target wireless side network element carries out respective wireless carrying to MME.
Step S910a, can reach interface if MME learns between former wireless side network element and Target Wireless side network element to exist, and can support the mobility of LIPA link, and MME sets up LIPA with regard to indicating target wireless side network element and core net is carried corresponding radio bearer so.
Step S912a, the LIPA session link between MME foundation and new local access network close, obtains the uplink tunnel sign that new local access network closes.
Step S914a, MME carries new local access network and closes the uplink tunnel sign of address, IAD and the information such as Qos parameter that will set up radio bearer in the handover request message sending to Target Wireless side network element, gets through the data feedback channel of transfer of data.
Step S916a, Target Wireless side network element is that resource reservation is carried out in LIPA carrying, by switch acknowledgment message by the address of Target Wireless side network element and downlink tunnel mark band to MME.
Step S918a, MME informs that by wireless side network element address and downlink tunnel sign new local access network closes, and gets through the down going channel of transfer of data by bearer update process.
Step S910b, if MME learns between former wireless side network element and Target Wireless side network element and does not exist and can reach interface, can not support the mobility of LIPA link, MME sets up core net with regard to indicating target wireless side network element and carries corresponding radio bearer and discharge original LIPA link so.
Step S912b, the information such as Qos parameter that MME carries core net access gateway address, uplink tunnel sign and will set up radio bearer in the handover request message sending to Target Wireless side network element, get through the data feedback channel of transfer of data.
Step S914b, Target Wireless side network element is that resource reservation is carried out in core net carrying, by switch acknowledgment message by the address of Target Wireless side network element and downlink tunnel mark band to MME.
Step S916b, MME discharges the original LIPA link of user by deleting load-bearing process.
Step S918, has continued follow-up handoff procedure.
Embodiment tri-
Figure 10 is according to the interaction diagrams of the gprs system handoff procedure local IP access mobility processing mode of the embodiment of the present invention, as shown in figure 10, comprises that following step S1002 is to step S1018:
Step S1002, terminal periodic detects the wireless signal of this community and other neighbor cells, with the former wireless side network element of offering of measurement report in form.When the cell signal that the current terminal of former wireless side NE Discovery accesses can not so just select an applicable Target Wireless side network element of signal strength signal intensity to initiate handoff procedure for user provides connection lower than threshold value.
Step S1004, whether former wireless side network element judges according to Target Wireless side net element information that itself and local IP access function realize between unit and has configured and can reach interface.Wherein the information of Target Wireless side network element includes but not limited to network element ID, the affiliated closed user group sign of network element etc.Wherein local IP access function realizes unit and can be: former wireless side network element (close and establish with local access network) or local access network close (singly putting).
Step S1006, former wireless side network element reports interface capability in the RELOCATION REQUEST message sending to SGSN.
Step S1008, according to interface capability, indication determines whether to support the mobility of LIPA the foundation that indicating target wireless side network element carries out respective wireless carrying to SGSN.
Step S1010a, SGSN learns between former wireless side network element and Target Wireless side network element to exist and can reach interface, can support the mobility of LIPA link, SGSN sets up LIPA with regard to indicating target wireless side network element and core net is carried corresponding radio bearer so.
Step S1012a, SGSN carries the parameter of the corresponding RAB needs of LIPA institute in the RELOCATION REQUEST message sending to Target Wireless side network element.Because LIPA link data sends, adopt direct tunnel form, so SGSN also sends to Target Wireless side network element by former L-GGSN address, uplink tunnel sign, get through the data feedback channel of transfer of data.
Step S1014a, Target Wireless side network element is that resource reservation is carried out in LIPA carrying, by re-positioning request acknowledge message, RAB is set up to the address of situation (as which radio bearer not have foundation), Target Wireless side network element and downlink tunnel mark band to MME.
Step S1016a, SGSN informs former local IAD by upgrading PDP Context process by wireless side network element address and downlink tunnel sign, gets through the down going channel of transfer of data.
Step S1010b, if SGSN learns between former wireless side network element and Target Wireless side network element and does not exist and can reach interface, can not support the mobility of LIPA link, SGSN sets up core net with regard to indicating target wireless side network element and carries corresponding radio bearer and discharge original LIPA link so.
Step S1012b, SGSN carries the information such as Qos parameter that will set up radio bearer in the RELOCATION REQUEST message sending to Target Wireless side network element.
Step S1014b, Target Wireless side network element is that resource reservation is carried out in core net carrying, by re-positioning request acknowledge message, radio bearer is set up to situation and brings SGSN.
Step S1016b, SGSN discharges the original LIPA link of user by deleting PDP Context process.
Step S1018, has continued follow-up handoff procedure.
Embodiment tetra-
Figure 11 is according to the interaction diagrams of the LTE system X2 handoff procedure local IP access mobility processing mode one of the embodiment of the present invention, as shown in figure 11, comprises that following step S1102 is to step S1122:
Step S1102, terminal periodic detects the wireless signal of this community and other neighbor cells, with the former wireless side network element of offering of measurement report in form.When the cell signal that the current terminal of former wireless side NE Discovery accesses can not so just select an applicable Target Wireless side network element of signal strength signal intensity to initiate X2 handoff procedure for user provides connection lower than threshold value.
Step S1104, whether former wireless side network element judges according to Target Wireless side net element information that itself and local IP access function realize between unit and has configured and can reach interface.Wherein the information of Target Wireless side network element includes but not limited to network element ID, the affiliated closed user group sign of network element etc.Wherein local IP access function realizes unit and can be: former wireless side network element (close and establish with local access network) or local access network close (singly putting).
Step S1106, because former wireless side network element cannot learn whether user has activated LIPA function at present, in the handover request message sending to target side network element, carry interface capability, all radio bearer list and Qos parameter, uplink tunnel sign and gateway address that needs foundation.
If former wireless side network element obtains the bearer types indication of core net when setting up radio bearer, in handover request message, do not need so to carry the radio bearer information of interface capability and the foundation of all needs, only need to judge whether to want target wireless side network element to set up LIPA radio bearer according to interface capability, by adjusting the required content of setting up radio bearer list, can complete.The processing of follow-up core net completes according to prior art.
Step S1108, Target Wireless side network element is set up corresponding empty port load-supporting according to the beared information of receiving, informs the resource reservation success of target side by switching request acknowledgement message.
Step S1110, former wireless side network element is the air interface synchronization process to Target Wireless side network element by rrc layer message indicating terminal.
Step S1112, terminal is informed the success of Target Wireless side network element air interface synchronization by switching authentic information, now Target Wireless side network element can carry out data cached forwarding.
Step S1114, Target Wireless side network element by path exchanging request message by the address of target side network element and downlink tunnel identification-information reporting to MME.Interface capability also transmits in this message, and MME is according to renewal or the deletion of interface capability judgement LIPA carrying.
, there is interface if target side network element and local IP access function realize between unit in step S1116a, MME synchronously upgrades LIPA carrying so.
Step S1118a, MME reports to local access network by bearer update process by the address of Target Wireless side network element and downlink tunnel identification information and closes, and gets through the down going channel of transfer of data.
, there is not interface if target side network element and local IP access function realize between unit in step S1116b, MME only upgrades core net carrying so, carries out the release of LIPA link.
Step S1118b, MME deletes all LIPA carryings of user by deleting load-bearing process.
Step S1120, MME confirms the success of path exchanging by path exchanging request acknowledge message.If some carrying of core-network side is not set up, for example LIPA is carried on without under interface case and deletes, and so also by the carrying of this message indication respective wireless side, deletes.
Step S1122, has continued follow-up handoff procedure.
Embodiment five
Figure 12 is according to the interaction diagrams of the LTE system X2 handoff procedure local IP access mobility processing mode two of the embodiment of the present invention, and as shown in figure 12, the S1202 comprising the steps is to step S1222:
Step S1202, terminal periodic detects the wireless signal of this community and other neighbor cells, with the former wireless side network element of offering of measurement report in form.When the cell signal that the current terminal of former wireless side NE Discovery accesses can not so just select an applicable Target Wireless side network element of signal strength signal intensity to initiate X2 handoff procedure for user provides connection lower than threshold value.
Step S1204, whether former wireless side network element judges according to Target Wireless side net element information that itself and local IP access function realize between unit and has configured and can reach interface.Wherein the information of Target Wireless side network element includes but not limited to network element ID, the affiliated closed user group sign of network element etc.Wherein local IP access function realizes unit and can be: former wireless side network element (close and establish with local access network) or local access network close (singly putting).
Step S1206, because former wireless side network element cannot learn whether user has activated LIPA function at present, in the handover request message sending to target side network element, carry interface capability, all radio bearer list and Qos parameter, uplink tunnel sign and gateway address that needs foundation.
If former wireless side network element obtains the bearer types indication of core net when setting up radio bearer, in handover request message, do not need so to carry the radio bearer information of interface capability and the foundation of all needs, only need to judge whether to want target wireless side network element to set up LIPA radio bearer according to interface capability, by adjusting the required content of setting up radio bearer list, can complete.The processing of follow-up core net completes according to prior art.
Step S1208, Target Wireless side network element is set up corresponding empty port load-supporting according to the beared information of receiving, informs the resource reservation success of target side by switching request acknowledgement message.
Step S1210, former wireless side network element is the air interface synchronization process to Target Wireless side network element by rrc layer message indicating terminal.
Step S1212, terminal is informed the success of Target Wireless side network element air interface synchronization by switching authentic information, now Target Wireless side network element can carry out data cached forwarding.
Step S1214, Target Wireless side network element by path exchanging request message by the address of target side network element and downlink tunnel identification-information reporting to MME.Interface capability also transmits in this message, and MME is according to renewal or the deletion of interface capability judgement LIPA carrying.
, there is interface if target side network element and local IP access function realize between unit in step S1216a, MME synchronously revises LIPA carrying so.
Step S1218a, MME reports to local access network by bearer update process by the address of Target Wireless side network element and downlink tunnel identification information and closes, and gets through the down going channel of transfer of data.Now sent the reorientation of local service gateway.
, there is not interface if target side network element and local IP access function realize between unit in step S1216b, MME only revises core net carrying so, carries out the release of LIPA link.
Step S1218b, MME deletes all LIPA carryings of user by deleting load-bearing process.
Step S1220, MME confirms the success of path exchanging by path exchanging request acknowledge message.If some carrying of core-network side is not set up, for example LIPA is carried on without under interface case and deletes, and so also by the carrying of this message indication respective wireless side, deletes.
Step S1222, has continued follow-up handoff procedure.
By the above embodiment of the present invention, utilize former wireless side network element to judge according to the information of Target Wireless side network element itself and local IP access function realize between unit, whether there is the interface that can reach, and interface capability is reported to core network mobility administrative unit; Thereby renewal or releasing operation that core network mobility administrative unit is carried out local IP access link according to interface capability have been realized local IP access mobility.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
Device embodiment
According to embodiments of the invention, a kind of mobility processing unit is provided, this device is for realizing above-mentioned mobility treating method.Figure 13 is according to the structured flowchart of the mobility processing unit of the embodiment of the present invention, and as shown in figure 13, this device comprises: judge module 131 and reporting module 132.Below said structure is described.
Whether judge module 131, exist and can reach interface for judging that according to the information of Target Wireless side network element Target Wireless side network element and local internet protocol access function realize between unit; Reporting module 132, be connected to judge module 131, for reporting interface capability according to the judged result of judge module 131 to core network mobility administrative unit, so that core network mobility administrative unit is carried out renewal or the releasing operation of local internet protocol access links according to interface capability, wherein, whether interface capability is used to indicate Target Wireless side network element and local internet protocol access function and realizes between unit and exist and can reach interface.
Figure 14 is that as shown in figure 14, reporting module also comprises according to the preferred structure block diagram of the mobility processing unit of the embodiment of the present invention: first sends submodule 141, second sends submodule 142, the 3rd transmission submodule 143.Below said structure is described in detail.
First sends submodule 141, is connected to judge module 131, for sending handover request message according to the judged result of judge module 131 to core network mobility administrative unit, and carries therein interface capability; Second sends submodule 142, is connected to judge module 131, for sending RELOCATION REQUEST message according to the judged result of judge module 131 to core network mobility administrative unit, and carries therein interface capability; The 3rd sends submodule 143, be connected to judge module 131, for send the handover request message that carries interface capability to Target Wireless side network element according to the judged result of judge module 131, so that Target Wireless side network element reports core network mobility administrative unit by path exchanging request message by interface capability.
It should be noted that, in the process of practical application, according to the judged result of judge module 131, reporting module 132 can send in submodule 142, the 3rd transmission submodule 143 and select one of them module to carry out the operation that sends the message that carries interface capability to Target Wireless side network element at the first transmission submodule 141, second.
For core network mobility administrative unit, can preserve in advance sign or address information that local internet protocol access function realizes unit, to carry out renewal or the releasing operation of local internet protocol access links according to sign or address information.
Particularly, reporting module 132 according to judged result after core network mobility administrative unit reports interface capability, core network mobility administrative unit receiving interface ability, and according to interface capability, judge that Target Wireless side network element and local internet protocol access function realize between unit and whether exist and can reach interface; If judgment result is that to be, core network mobility administrative unit is carried out the renewal operation of local internet protocol access links; If the determination result is NO, core network mobility administrative unit is carried out the releasing operation of local internet protocol access links.
In sum, pass through the above embodiment of the present invention, utilize former wireless side network element to judge according to the information of Target Wireless side network element itself and local IP access function realize between unit, whether there is the interface that can reach, and interface capability is reported to core network mobility administrative unit; Thereby renewal or releasing operation that core network mobility administrative unit is carried out local IP access link according to interface capability have been realized local IP access mobility.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a mobility treating method, is characterized in that, comprising:
Whether former wireless side network element judges according to the information of Target Wireless side network element that described Target Wireless side network element and local internet protocol access function realize between unit and exists and can reach interface;
Described former wireless side network element reports interface capability according to judged result to core network mobility administrative unit, so that described core network mobility administrative unit is carried out renewal or the releasing operation of local internet protocol access links according to described interface capability, wherein, whether described interface capability is used to indicate described Target Wireless side network element and described local internet protocol access function and realizes existing between unit and describedly can reach interface;
Wherein, described former wireless side network element is according to described judged result after described core network mobility administrative unit reports described interface capability, and described method also comprises:
Described core network mobility administrative unit receives described interface capability, and according to described interface capability, judges that described Target Wireless side network element and described local internet protocol access function realize whether existing between unit and describedly can reach interface;
Described core network mobility administrative unit is carried out renewal or the releasing operation of described local internet protocol access links according to described judged result.
2. method according to claim 1, is characterized in that, described former wireless side network element reports described interface capability to comprise according to described judged result to described core network mobility administrative unit:
Described former wireless side network element sends handover request message according to described judged result to described core network mobility administrative unit, and carries therein described interface capability; Or
Described former wireless side network element sends RELOCATION REQUEST message according to described judged result to described core network mobility administrative unit, and carries therein described interface capability; Or
Described former wireless side network element sends the handover request message that carries described interface capability to described Target Wireless side network element according to described judged result, so that described Target Wireless side network element reports described core network mobility administrative unit by path exchanging request message by described interface capability.
3. method according to claim 1, is characterized in that, renewal or releasing operation that described core network mobility administrative unit is carried out described local internet protocol access links according to described judged result comprise:
If judgment result is that to be, described core network mobility administrative unit is carried out the renewal operation of described local internet protocol access links;
If the determination result is NO, described core network mobility administrative unit is carried out the releasing operation of described local internet protocol access links.
4. method according to claim 1, it is characterized in that, described core network mobility administrative unit is preserved sign or the address information that described local internet protocol access function realizes unit in advance, to carry out renewal or the releasing operation of local internet protocol access links according to described sign or described address information.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, described local internet protocol access function realizes unit and comprises one of following:
Local service gateway, local access network close.
6. according to the method described in any one in claim 1 to 4, it is characterized in that, it is one of following that described former wireless side network element comprises:
Home eNodeB, macro base station, femto gateway.
7. according to the method described in any one in claim 1 to 4, it is characterized in that, it is one of at least following that the information of described Target Wireless side network element comprises:
Closed user group sign under network element ID, network element.
8. according to the method described in any one in claim 1 to 4, it is characterized in that, it is one of following that described core network mobility administrative unit comprises:
Mobility Management Entity, service universal grouping wireless business supporting node.
9. a mobility processing unit, is characterized in that, comprising:
Whether judge module, exist and can reach interface for judging that according to the information of Target Wireless side network element described Target Wireless side network element and local internet protocol access function realize between unit;
Reporting module, for reporting interface capability according to judged result to core network mobility administrative unit, so that described core network mobility administrative unit is carried out renewal or the releasing operation of local internet protocol access links according to described interface capability, wherein, whether described interface capability is used to indicate described Target Wireless side network element and described local internet protocol access function and realizes existing between unit and describedly can reach interface;
Wherein, former wireless side network element, also comprises according to described judged result after described core network mobility administrative unit reports described interface capability:
Described core network mobility administrative unit receives described interface capability, and according to described interface capability, judges that described Target Wireless side network element and described local internet protocol access function realize whether existing between unit and describedly can reach interface;
Described core network mobility administrative unit is carried out renewal or the releasing operation of described local internet protocol access links according to described judged result.
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| CN200910176129.7A CN102026401B (en) | 2009-09-21 | 2009-09-21 | Mobility processing method and device |
| PCT/CN2010/076029 WO2011032444A1 (en) | 2009-09-21 | 2010-08-16 | Method and device for mobility processing |
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| CN200910176129.7A CN102026401B (en) | 2009-09-21 | 2009-09-21 | Mobility processing method and device |
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| CN102781055B (en) * | 2011-05-11 | 2017-04-12 | 华为技术有限公司 | Data transmission method, radio access network device and communication system |
| CN103167571B (en) * | 2011-12-09 | 2017-07-21 | 华为终端有限公司 | Switching method and mobile management device, home access device |
| CN103379526B (en) * | 2012-04-24 | 2016-02-10 | 中兴通讯股份有限公司 | A kind of method and system safeguarding network element |
| CN103813397B (en) * | 2012-11-12 | 2019-02-15 | 中兴通讯股份有限公司 | Management shunts method, wireless side network element and the mobility management entity of connection |
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| CN102026401A (en) | 2011-04-20 |
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