CN104066136A - Switching and switching processing methods and devices for wireless access networks - Google Patents
Switching and switching processing methods and devices for wireless access networks Download PDFInfo
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- H—ELECTRICITY
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- H—ELECTRICITY
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Abstract
The invention discloses switching and switching processing methods and devices for wireless access networks, wherein the switching method is applied to a terminal and the method includes the following steps: receiving a switching policy from an ANDSF entity, wherein the switching policy is used for instructing the terminal to switch from a first access network to a second access network when a specified time reaches; and according to the switching policy, switching from the first access network to the second access network. The technical scheme solves a problem, which exists in related technologies, that a ping-pong effect exists during switching of the wireless access networks and the like so that the ping-pong effect in a process in which the terminal accesses the wireless access networks is prevented effectively and thus user experience is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of switching, switching handling method and device of wireless access network.
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, the lower and more personalized Mobile Communication Service of time delay, simultaneously, reduce the operation cost of operator, third generation partner program (3rdGeneration Partnership Project, referred to as 3GPP) standard operation group is just being devoted to the research of evolved packet system (EvolvedPacket System, be called for short EPS).Whole EPS system is divided into wireless access network and core net two parts.
Wireless access network, by evolution base station (Evolved NodeB, referred to as eNB) and 3G radio network controller (RadioNetwork Controller, 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 and the access control of management air interface.
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 packet wireless business business (General PacketRadio Service, referred to as GPRS) support node (Serving GPRS Support Node, referred to as SGSN), policy charging rule function (Policy and Charging Rule Function, referred to as PCRF), gateway (Serving Gateway, referred to as S-GW) and packet data gateway (PDN Gateway, referred to as P-GW).
Fig. 1 is according to the structural representation of the packet-based core networks (Evolved PacketCore, referred to as EPC) of the 3GPP of correlation technique and non-3GPP connecting system access evolution.
As shown in Figure 1, EPS system is supported 3GPP access.HSS is the permanent storage place of user contracting data, is positioned at the signing home network of user.MME is responsible for the processing of mobile management, Non-Access Stratum signaling and the chain of command correlation functions such as management of user mobility managing context.S-GW is the accessing gateway equipment being connected with wireless access network, forwarding data between wireless access and P-GW, and data are carried out to buffer memory.P-GW is the borde gateway of EPS and packet data network (Packet Data Network, referred to as PDN), is responsible for the access of PDN and the function such as forwarding data between EPS and PDN.PCRF is "Policy and Charging Rules Function entity, and it is connected with Operator Specific Service network by receiving interface Rx, is responsible for providing charging control, online credit control, thresholding to control and service quality (Quality of Service, referred to as QoS).SGSN is GSM EDGE wireless access network (GSM EDGE radio access network, referred to as GERAN, wherein GSM is the abbreviation of Global System forMobile communications, it is global system for mobile communications, EDGE is the abbreviation of Enhanced Data Rate for GSMEvolution, be enhanced data rates for gsm evolution technology) and global system for mobile communications wireless access network (Universal Mobile Telecommunication System Radio Access Network, referred to as UTRAN) service support node of user access core network network, similar with Mobility Management Entity in function, being responsible for user's position upgrades, the functions such as paging management and bearer management.
As shown in Figure 1, EPS system is also supported non-3GPP access.Wherein, by S2a/S2b/S2c Interface realization, P-GW is as the anchor point between 3GPP and non-3GPP access with the intercommunication of non-3GPP access.Non-3GPP access is divided into the non-3GPP access of credit and the non-3GPP access of non-credit.Wherein, the non-3GPP access of credit can directly be connected with P-GW by S2a interface, and S2a interface adopts proxy-mobile IP (Proxy Mobile IP, referred to as PMIP) agreement to carry out information interaction.The non-3GPP access of non-credit needs to be connected with P-GW through the packet data gateway (Evolved Packet Data Gateway, referred to as ePDG) of evolution, and the interface between ePDG and P-GW is S2b.S2c interface provides subscriber equipment (User Equipment, referred to as UE) and P-GW between user's face control and mobility support, the mobility protocol of its support is for supporting the mobile IP v 6 (Mobile IPv6support for Dual Stack Hosts and Routers, referred to as DSMIPv6) of two stacks.
System in above-mentioned Fig. 1 can provide better transmission rate, make VoIP(Voice over IP, referred to as voice-over-net telephone service) become a reality, therefore universal mobile telecommunications system land radio access web (EvolvedUTRAN, referred to as the E-UTRAN) access of the evolution in this system does not provide separately audio access.If wish to realize voice communication, except VoIP, can also select the UTRAN and the GERAN system that fall back to covering to carry out audio access.
Thisly fall back to the technology that circuit domain is carried out voice communication, be referred to as CSFB(Circuit Switched fallback, referred to as circuit domain dropping).The Organization Chart of CSFB system as shown in Figure 2, comprises following network element: UE, has the terminal that can access two kinds of wireless network abilities, is called dual-mode terminal, and UE of the present invention is the dual-mode terminal that can be linked into GSM network and EPS network, also possesses CSFB ability.E-UTRAN, comprises eNodeB, repeats no more.GERAN, UTRAN, be the wireless access network of traditional GSM/UMTS network, repeats no more.SGSN, repeats no more.Mobile Switching Center Server (MobileSwitching Center Server, referred to as MSC Server), is the core network element in GSM/UMTS network C S territory, is responsible for user's access, mobility and the voice of circuit domain and the control of short message service.MME, supports CSFB function, can create, safeguards, the SGs interface conjunctionn between deletion and MSC Server etc., and all the other repeat no more.
The fast development of intelligent terminal and mobile Internet application, increases sharply Mobile data flow with speed difficult to the appraisal.In order effectively to alleviate flow pressure, the lasting development that promotes mobile communication business, WLAN (wireless local area network) (Wireless Local Area Network selects to greatly develop in the increasing operator in the whole world, referred to as WLAN), and employing WLAN low-cost, high bandwidth is Cellular Networks shunting.
Access network discovery and selection function (Access Network Discovery and Selection Function, referred to as ANDSF) as access anchor point, can realize Intelligent network-selecting, mutual by network and terminal, realize effective shunting of network insertion, the operator that meets following multi-network cooperative to.ANDSF generates strategy, and helps terminal use to select the network formats of best access, realizes the collaborative of plurality of access modes.
In prior art, ANDSF proposes at R8.When UE will select network to register, if there is 3GPP Access Network and non-3 GPP access network simultaneously, EPS can be current according to UE positional information, by ANDSF, to UE, provide available Access Network information, or (the Inter-System Mobility Policy of mobility strategy between system, referred to as ISMP), the information that UE is used ANDSF to provide, selects suitable Access Network to register.If there are a plurality of non-3 GPP access networks simultaneously, EPS can be current according to UE positional information, by ANDSF, to UE, provide routing policy between system (Inter-System RoutingPolicy, referred to as ISRP), the information that UE is used ANDSF to provide, selects suitable Access Network to shunt.As shown in Figure 3, ANDSF is connected with UE by S14 interface, and this interface adopts open mobile alliance device management (Open Mobile AllianceDevice Management, referred to as OMA DM) agreement.
In prior art, ANDSF can solve the access network selection problem that 3GPP is switched to non-3GPP.Also can solve the shunting routing problem of multi-access terminal, such as: the UE(IP Flow Mobility capable UE that possesses and activate IP stream migration ability, referred to as IFOM capable UE), possess and activate the UE(Multiple Access PDNConnectivity capable UE of multiple access PDN concatenation ability, referred to as MAPCON capable UE), possess and activate the UE(Non-seamless WLAN offload capable UE of seamed WLAN shunting ability, referred to as NSWO capable UE) shunting routing problem.
In prior art, can provide the method that is diverted to WLAN access by ANDSF and 3GPP process, by the method, can guarantee that UE enjoys optimum business experience.
Yet there are the following problems for prior art, as shown in Figure 4:
1, operator determines that WLAN is preferable over UTRAN for specific IP stream, but E-UTRAN than WLAN more preferably.When being switched to UTRAN from E-UTRAN, the stream that originally will carry out PS switching, based on ANDSF strategy, can be through WLAN transmission.Based on ANDSF strategy and 3GPP process, UE can be switched to WLAN by such IP stream.If again occur to the switching of E-UTRAN, UE switches continually between E-UTRAN and these two kinds of access technologies of WLAN, will bring ping-pong.
2 is relevant with CSFB, and when UE executive circuit domain dropping is called out, after circuit domain call finishes, UE likely turns back to E-UTRAN from GERAN, UTRAN.If the circuit domain call time is very short, UE, may be just very short in the time of GERAN or UTRAN stop before returning to E-UTRAN.
A bimodulus UE who supports 3GPP wireless access type and WLAN, is connected to LTE, only accesses PS business, and for example, UE does not flow IP simultaneously by a plurality of radio access interface routes.When CS business is triggered, UE falls back to GERAN or UTRAN.Meanwhile, UE is used ANDSF strategy, triggers UE splitter section IP and flows to WLAN.If the time of CS business is very short, UE is before returning to E-UTRAN, time in GERAN or UTRAN stop may be very short, and, based on ANDSF strategy, the access priority of E-UTRAN may be higher than the access priority of WLAN, and UE may can switch to WLAN from E-UTRAN again, switching so repeatedly, may cause ping-pong.
For the problems referred to above in correlation technique, effective solution is not yet proposed at present.
Summary of the invention
In correlation technique, when carrying out the switching of wireless access network, can there is the technical problems such as ping-pong, the invention provides a kind of switching, switching handling method and device of wireless access network, at least to address the above problem.
According to an aspect of the present invention, a kind of changing method of wireless access network is provided, be applied to terminal, the method comprises: receive the switchover policy that comes from ANDSF entity, wherein, described switchover policy is used to indicate described terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time; According to described switchover policy, from described the first Access Network, switch to described the second Access Network.
Preferably, described switchover policy comprises: the duration that timer-type and timer are corresponding, wherein, described timer-type is used to indicate described terminal and switches to described the second Access Network from described the first Access Network, and described duration for triggering the switching that described terminal is carried out Access Network when the timing of described timer arrives the described fixed time.
Preferably, described the first Access Network is non-third generation partner program 3GPP Access Network, and described the second Access Network is 3GPP Access Network.
Preferably, described non-3 GPP access network comprises: WLAN (wireless local area network) WLAN; Described 3GPP Access Network comprises: the universal mobile telecommunications system land radio access web E-UTRAN of evolution.
Preferably, reception comprises: to described ANDSF entity, send a request message, wherein, described request message is used for asking described ANDSF entity to send described switchover policy to described terminal before coming from the switchover policy of ANDSF entity.
Preferably, reception comprises before coming from the switchover policy of ANDSF entity: described ANDSF entity initiatively sends described switchover policy to described terminal.
According to another aspect of the present invention, a kind of switching handling method of wireless access network is provided, has been applied to ANDSF entity, having comprised: obtain switchover policy, wherein, described switchover policy is used to indicate described terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time; According to pre-defined rule, to described terminal, send described switchover policy.
Preferably, described switchover policy comprises: the duration that timer-type and timer are corresponding, wherein, described timer-type is used to indicate described terminal and switches to described the second Access Network from described the first Access Network, and described duration for triggering the switching that described terminal is carried out Access Network when the timing of described timer arrives the described fixed time.
Preferably, described the first Access Network is non-third generation partner program 3GPP Access Network, and described the second Access Network is 3GPP Access Network.
Preferably, it is one of following that described pre-defined rule comprises: receive the request message from described terminal, under the triggering of described request message, to described terminal, send described switchover policy; Described ANDSF entity initiatively sends described switchover policy to described terminal.
According to a further aspect of the invention, a kind of switching device shifter of wireless access network is provided, be applied to terminal, this device comprises: receiver module, for receiving the switchover policy that comes from ANDSF entity, wherein, described switchover policy is used to indicate described terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time; Handover module, for switching to described the second Access Network according to described switchover policy from described the first Access Network.
Preferably, described receiver module is for receiving the described switchover policy that comprises following content: the duration that timer-type and timer are corresponding, wherein, described timer-type is used to indicate described terminal and switches to described the second Access Network from described the first Access Network, and described duration for triggering the switching that described terminal is carried out Access Network when the timing of described timer arrives the described fixed time.
According to a further aspect of the invention, a kind of switch processing device of wireless access network is provided, be applied to ANDSF entity, this device comprises: acquisition module, be used for obtaining switchover policy, wherein, described switchover policy is used to indicate described terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time; Sending module, for sending described switchover policy according to pre-defined rule to described terminal.
Preferably, described acquisition module, for obtaining the described switchover policy that comprises following content: the duration that timer-type and timer are corresponding, wherein, described timer-type is used to indicate described terminal and switches to described the second Access Network from described the first Access Network, and described duration for triggering the switching that described terminal is carried out Access Network when the timing of described timer arrives the described fixed time.
By the present invention, by ANDSF entity, to terminal, issue and be used to indicate terminal and when arriving the fixed time, from the first Access Network, switch to the technological means of the switchover policy of the second Access Network, solved in correlation technique, when carrying out the switching of wireless access network, can there is the technical problems such as ping-pong, thereby effectively avoided the ping-pong in the process of terminal access wireless access network, and then promoted user's experience.
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 3GPP connecting system of correlation technique and non-3GPP connecting system access EPS;
Fig. 2 is according to the schematic diagram of the CSFB function structure of correlation technique;
Fig. 3 is according to the schematic diagram of the ANDSF framework of correlation technique;
Fig. 4 is according to the schematic diagram of the pingpang handoff existing in correlation technique;
Fig. 5 is according to the flow chart of the changing method of the wireless access network of the embodiment of the present invention 1;
Fig. 6 is according to the structured flowchart of the switching device shifter of the wireless access network of the embodiment of the present invention 1;
Fig. 7 is according to the flow chart of the switching handling method of the wireless access network of the embodiment of the present invention 2;
Fig. 8 is according to the structured flowchart of the switch processing device of the wireless access network of the embodiment of the present invention 2;
Fig. 9 is for to return to the flow chart of E-UTRAN according to the tangential WLAN of the CSFB of the embodiment of the present invention 3 by Timer Controlling;
Figure 10 is for to return to the flow chart of E-UTRAN according to the tangential WLAN of common PS business of the embodiment of the present invention 4 by Timer Controlling.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
In correlation technique, the ping-pong problem existing when terminal is carried out the access selection of wireless access network or switched, the embodiment of the present invention provides corresponding solution, below describes in detail.
Embodiment 1
Changing method in the present embodiment is applied to terminal.Fig. 5 is according to the flow chart of the changing method of the wireless access network of the embodiment of the present invention 1.As shown in Figure 5, the method comprises:
Step S502, receives the switchover policy that comes from ANDSF entity, and wherein, this switchover policy is used to indicate terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time;
Step S504, switches to the second Access Network according to switchover policy from the first Access Network.
By above-mentioned treatment step, owing to carrying the temporal information that is switched to the second Access Network from the first Access Network by ANDSF entity in the switchover policy of terminal indication, by ANDSF entity indicating terminal, carried out the switching time of wireless access network, therefore, the ping-pong problem that can avoid terminal to automatically switch and cause according to the priority of wireless access network in correlation technique, thereby promoted the business experience of UE, and then promoted user's experience.
In the present embodiment, the implementation of above-mentioned switchover policy has multiple, for example can directly indicate switching time by specific field, also can realize by the mode of notifying UE that timer is set, for the second implementation, can realize in the following ways: above-mentioned switchover policy comprises: the duration that timer-type and timer are corresponding, wherein, this timer-type is used to indicate terminal and switches to the second Access Network from the first Access Network, and when above-mentioned duration arrives the fixed time for the timing at timer, triggering terminal is carried out the switching of Access Network.
Above-mentioned the first Access Network can include but not limited to: non-3 GPP access network, above-mentioned the second Access Network includes but not limited to 3GPP Access Network.Now, above-mentioned non-3 GPP access network comprises: WLAN; 3GPP Access Network comprises: E-UTRAN.
In the present embodiment, the mode that above-mentioned ANDSF sends above-mentioned switchover policy to terminal can adopt PULL pattern, or PUSH pattern, wherein, for PULL pattern, can realize in the following manner: reception sends a request message to ANDSF entity before coming from the above-mentioned switchover policy of ANDSF entity, wherein, request message is used for asking ANDSF entity to send switchover policy to terminal; For PUSH pattern, can realize in the following manner: before reception comes from the switchover policy of ANDSF entity, ANDSF entity initiatively sends above-mentioned switchover policy to terminal.
A kind of switching device shifter of wireless access network is also provided in the present embodiment, this application of installation is in terminal, but is not limited to this, and this device is used for realizing above-described embodiment and preferred implementation, carried out repeating no more of explanation, below the module relating in this device had been described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described device of following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.Fig. 6 is according to the structured flowchart of the switching device shifter of the wireless access network of the embodiment of the present invention 1.As shown in Figure 6, this device comprises:
Receiver module 60, is connected to handover module 62, and for receiving the switchover policy that comes from ANDSF entity, wherein, switchover policy is used to indicate terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time;
Handover module 62, for switching to the second Access Network according to above-mentioned switchover policy from the first Access Network.
The function realizing by above-mentioned modules, the ping-pong problem that can avoid equally terminal to automatically switch and cause according to the priority of wireless access network in correlation technique.
In the present embodiment, above-mentioned receiver module 60 is for receiving the switchover policy that comprises following content: the duration that timer-type and timer are corresponding, wherein, this timer-type is used to indicate terminal and switches to the second Access Network from the first Access Network, and when this duration arrives the fixed time for the timing at timer, triggering terminal is carried out the switching of Access Network.
It should be noted that, above-mentioned modules, when the function realizing separately, can be realized by a processor or two processors in terminal, when realizing by two processors, can be that above-mentioned two processing modules are corresponding one by one respectively with two processors.
Embodiment 2
The present embodiment describes in ANDSF entity side.Fig. 7 is according to the flow chart of the switching handling method of the wireless access network of the embodiment of the present invention 2.As shown in Figure 7, the method comprises:
Step S702, obtains switchover policy, and wherein, this switchover policy is used to indicate terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time;
Step S704, sends above-mentioned switchover policy according to pre-defined rule to terminal.
With embodiment illustrated in fig. 5 corresponding, by above-mentioned treatment step, the ping-pong problem that can avoid equally terminal to automatically switch and cause according to the priority of wireless access network in correlation technique.
In the present embodiment, above-mentioned switchover policy includes but not limited to: the duration that timer-type and timer are corresponding, wherein, timer-type is used to indicate terminal and switches to the second Access Network from the first Access Network, and when duration arrives the fixed time for the timing at timer, triggering terminal is carried out the switching of Access Network.
In the present embodiment, the first Access Network includes but not limited to non-3 GPP access network, and the second Access Network is 3GPP Access Network.
In the present embodiment, it is one of following that above-mentioned pre-defined rule comprises: receive the request message of self terminal, under the triggering of request message, to terminal, send switchover policy; ANDSF entity initiatively sends switchover policy to terminal.Can adopt the mode of initiatively transmission and passive transmission.
In the present embodiment, also provide a kind of switch processing device of wireless access network, be applied to ANDSF entity, as shown in Figure 8, this device comprises:
Acquisition module 80, is connected to sending module 82, and for obtaining switchover policy, wherein, switchover policy is used to indicate terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time;
Sending module 82, for sending switchover policy according to pre-defined rule to terminal.
In the present embodiment, above-mentioned acquisition module 80, for obtaining the switchover policy that comprises following content: the duration that timer-type and timer are corresponding, wherein, this timer-type is used to indicate terminal and switches to the second Access Network from the first Access Network, and when above-mentioned duration arrives the fixed time for the timing at timer, triggering terminal is carried out the switching of Access Network.
It should be noted that, above-mentioned modules is when the function realizing separately, can realize by a processor or two processors in ANDSF entity, when realizing by two processors, can be that above-mentioned two processing modules and two processors are distinguished one to one.
In order to understand better above-described embodiment, below in conjunction with embodiment 3-4 and relevant drawings, describe in detail.
Embodiment 3
The present embodiment be take and realized the tangential WLAN of CSFB and by Timer Controlling, return to E-UTRAN and describe as example, and as shown in Figure 9, the handover scheme in the present embodiment comprises following treatment step:
Step S902, UE initiates the process of calling out in CS territory and sets up data by WLAN to connect, and this is prior art.
Step S904, when UE starts to initiate to be switched to WLAN, in the present embodiment, UE sends cross-system to ANDSF and switches waiting timer request message, with the initial 3GPP wireless access type of upper UE, is E-UTRAN herein, with the current access technology of upper UE, be WLAN herein.
Step S906, ANDSF returns to cross-system to UE and switches waiting timer response message, switches the type of waiting timer with upper cross-system, and duration corresponding to this timer.
The type of this timer is that WLAN returns to E-UTRAN waiting timer.
Because operator wishes that UE resides in WLAN rather than E-UTRAN as far as possible for a long time conventionally, to alleviate the traffic load of operator, so duration value that can this timer is set to medium threshold value or max-thresholds.For instance, the duration of this timer, codomain scope can be 0～1800 second, it is 900 seconds that default value can be set, or 1800 seconds.
The mode that cross-system switching waiting timer duration is obtained in above-mentioned UE triggering is PULL pattern.
Alternatively, ANDSF also can adopt PUSH pattern, initiatively to UE, provides cross-system to switch waiting timer duration.
Step S908, the WLAN in UE storage cross-system switching waiting timer response message returns to the duration of E-UTRAN waiting timer, and the waiting timer that turns back to E-UTRAN from WLAN is set.
Step S910, when WLAN returns to E-UTRAN waiting timer still in operation, UE continues to reside in WLAN.
Step S912, as WLAN, to return to E-UTRAN waiting timer overtime, UE is by initiate TAU(Tracking Area Update to MME, referred to as tracing section updating) request message, turn back to E-UTRAN.
Embodiment 4
The present embodiment be take and realized the tangential WLAN of common PS business and by Timer Controlling, return to E-UTRAN and describe as example, and as shown in figure 10, the method comprises:
Step S1002, the IRAT that UE initiates from E-UTRAN to UTRAN/GERAN switches, and according to the tangential WLAN of ANDSF strategy, this is prior art.
Step S1004, when UE starts to initiate to be switched to WLAN, in the present invention, UE sends cross-system to ANDSF and switches waiting timer request message, with the initial 3GPP wireless access type of upper UE, is E-UTRAN herein, with the current access technology of upper UE, be WLAN herein.
Step S1006, ANDSF returns to cross-system to UE and switches waiting timer response message, switches the type of waiting timer with upper cross-system, and duration corresponding to this timer.
The type of this timer is that WLAN returns to E-UTRAN waiting timer
Because operator wishes that UE resides in WLAN rather than E-UTRAN as far as possible for a long time conventionally, to alleviate the traffic load of operator, so duration value that can this timer is set to medium threshold value or max-thresholds.For instance, the duration of this timer, codomain scope can be 0～1800 second, it is 900 seconds that default value can be set, or 1800 seconds.
The mode that cross-system switching waiting timer duration is obtained in above-mentioned UE triggering is PULL pattern.
Alternatively, ANDSF also can adopt PUSH pattern, initiatively to UE, provides cross-system to switch waiting timer duration.
Step S1008, the WLAN in UE storage cross-system switching waiting timer response message returns to the duration of E-UTRAN waiting timer, and the waiting timer that turns back to E-UTRAN from WLAN is set.
Step S1010, when WLAN returns to E-UTRAN waiting timer still in operation, UE continues to reside in WLAN.
Step S1012, as WLAN, to return to E-UTRAN waiting timer overtime, and UE initiates to be switched to from WLAN the process of E-UTRAN.
In another embodiment, also provide a kind of software, the technical scheme that this software is described for carrying out above-described embodiment and preferred implementation.
In another embodiment, also provide a kind of storage medium, stored above-mentioned software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
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, and in some cases, can carry out shown or described step with the order being different from herein, 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.
These are 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 (14)
1. a changing method for wireless access network, is applied to terminal, it is characterized in that, comprising:
Reception comes from the switchover policy of access network discovery and selection function ANDSF entity, and wherein, described switchover policy is used to indicate described terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time;
According to described switchover policy, from described the first Access Network, switch to described the second Access Network.
2. method according to claim 1, is characterized in that, described switchover policy comprises:
The duration that timer-type and timer are corresponding, wherein, described timer-type is used to indicate described terminal and switches to described the second Access Network from described the first Access Network, and described duration for triggering the switching that described terminal is carried out Access Network when the timing of described timer arrives the described fixed time.
3. method according to claim 1, is characterized in that, described the first Access Network is non-third generation partner program 3GPP Access Network, and described the second Access Network is 3GPP Access Network.
4. method according to claim 3, is characterized in that, described non-3 GPP access network comprises: WLAN (wireless local area network) WLAN; Described 3GPP Access Network comprises: the universal mobile telecommunications system land radio access web E-UTRAN of evolution.
5. according to the method described in claim 1 to 4 any one, it is characterized in that, reception comprises before coming from the switchover policy of ANDSF entity:
To described ANDSF entity, send a request message, wherein, described request message is used for asking described ANDSF entity to send described switchover policy to described terminal.
6. according to the method described in claim 1 to 4 any one, it is characterized in that, reception comprises before coming from the switchover policy of ANDSF entity:
Described ANDSF entity initiatively sends described switchover policy to described terminal.
7. a switching handling method for wireless access network, is applied to access network discovery and selection function ANDSF entity, it is characterized in that, comprising:
Obtain switchover policy, wherein, described switchover policy is used to indicate described terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time;
According to pre-defined rule, to described terminal, send described switchover policy.
8. method according to claim 7, is characterized in that, described switchover policy comprises:
The duration that timer-type and timer are corresponding, wherein, described timer-type is used to indicate described terminal and switches to described the second Access Network from described the first Access Network, and described duration for triggering the switching that described terminal is carried out Access Network when the timing of described timer arrives the described fixed time.
9. method according to claim 7, is characterized in that, described the first Access Network is non-third generation partner program 3GPP Access Network, and described the second Access Network is 3GPP Access Network.
10. according to the method described in claim 7 to 9 any one, it is characterized in that, it is one of following that described pre-defined rule comprises:
Reception, from the request message of described terminal, under the triggering of described request message, sends described switchover policy to described terminal;
Described ANDSF entity initiatively sends described switchover policy to described terminal.
The switching device shifter of 11. 1 kinds of wireless access networks, is applied to terminal, it is characterized in that, comprising:
Receiver module, for receiving the switchover policy that comes from access network discovery and selection function ANDSF entity, wherein, described switchover policy is used to indicate described terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time;
Handover module, for switching to described the second Access Network according to described switchover policy from described the first Access Network.
12. devices according to claim 11, is characterized in that, described receiver module is for receiving the described switchover policy that comprises following content:
The duration that timer-type and timer are corresponding, wherein, described timer-type is used to indicate described terminal and switches to described the second Access Network from described the first Access Network, and described duration for triggering the switching that described terminal is carried out Access Network when the timing of described timer arrives the described fixed time.
The switch processing device of 13. 1 kinds of wireless access networks, is applied to access network discovery and selection function ANDSF entity, it is characterized in that, comprising:
Acquisition module, for obtaining switchover policy, wherein, described switchover policy is used to indicate described terminal and from the first Access Network, switches to the second Access Network when arriving the fixed time;
Sending module, for sending described switchover policy according to pre-defined rule to described terminal.
14. devices according to claim 13, is characterized in that, described acquisition module, for obtaining the described switchover policy that comprises following content:
The duration that timer-type and timer are corresponding, wherein, described timer-type is used to indicate described terminal and switches to described the second Access Network from described the first Access Network, and described duration for triggering the switching that described terminal is carried out Access Network when the timing of described timer arrives the described fixed time.
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| CN201310091403.7A CN104066136A (en) | 2013-03-20 | 2013-03-20 | Switching and switching processing methods and devices for wireless access networks |
| PCT/CN2014/070161 WO2014146500A1 (en) | 2013-03-20 | 2014-01-06 | Radio access network switching method, and switching processing method and device |
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| CN201310091403.7A CN104066136A (en) | 2013-03-20 | 2013-03-20 | Switching and switching processing methods and devices for wireless access networks |
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| CN109600805B (en) * | 2018-12-21 | 2021-02-23 | 华为技术服务有限公司 | Communication method, device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112218347B (en) * | 2020-09-27 | 2022-09-16 | Oppo广东移动通信有限公司 | Method and device for inhibiting inter-system ping-pong, terminal equipment and storage medium |
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| WO2014146500A1 (en) | 2014-09-25 |
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