CN102761928A - Heterogeneous network switching method for group user based on business QoS - Google Patents
Heterogeneous network switching method for group user based on business QoS Download PDFInfo
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Abstract
The invention discloses a heterogeneous network switching method for group users based on business QoS (Quality of Service). The method comprises the steps as follows: step A, in a heterogeneous network, after a link layer at a terminal makes a switching request, the pre-switching action of an IP layer is started; step B, during the switching process, the priority of pre-switching business is determined first; step C, the optional priority of a target network is determined; step D, the pre-switching business selects the target network in a self-adapting and self-optimizing manner and carries out the matching mapping; and finally, the pre-switching task of the IP layer is carried out. The method provided by the invention carries out the pre-switching connection of the IP layer by using a business switching weight value of the link layer and the weight value of a target base station while the mobile terminal triggers the switching of the link layer, thereby improving the quality and the switching efficiency of user business, optimizing the network and balancing the load.
Description
Technical field
The invention belongs to the mobile broadband wireless communication technical field, relate to a kind of group user heterogeneous network switch method based on QoS of survice.
Background technology
The direction of following wireless mobile communications development will be multiple wireless access technology and the interconnected complementation of standard, for the user provides ubiquitous information communication service ubiquitous, at all times.The next generation mobile communication topology of networks is incited somebody to action the cubic network structure that progressively evolution becomes heterogeneous, eclipsed form, i.e. heterogeneous network.There is dissimilar Radio Access Networks simultaneously in same place in the heterogeneous network, and they have separately characteristics and suitable application scenario.The user can cross over existing access network switching and get into new network in communication process, and the user needs to guarantee the continuity of communication service in this isomery handoff procedure, provides the QoS (Quality of Service, service quality) of corresponding service to guarantee.
It is important problem very in the wireless mobile communications that heterogeneous network switches always, also is a problem that is difficult to thoroughly solve.Because otherness, diversity of operations, the multimode property at terminal and the factors such as immeasurability of environment of the heterogeneous networks that same place exists in the heterogeneous network, the handoff procedure in the consolidated network, the switching in the heterogeneous network is more complicated.To the future multiple wireless access technology and the network environment of depositing; 3GPP propose can compatible different business core network system architecture evolution scheme (System Architecture Evolution SAE); In order to support the IP mobility of user between different access systems and SAE; 3GPP has proposed s2a, s2b and three kinds of frameworks of s2c; Its interface standard corresponds respectively to MIPv4FA, PMIPv6 and three kinds of agreements of DSMIPv6, but these three kinds of agreements have only been carried out simple descriptive definition to the flow process that isomery switches, for the not careful definition of the concrete implementation status of handoff algorithms and switching.
Existing handoff solution has mainly reduced the registration time delay; Signal strength signal intensity and mobile detection information that it provides through link layer in advance; System can be switched for network layer (IP layer) better preparation is provided, the switching of IP layer independently accomplished the switching on upper strata through using mobile IP protocol, accomplishes parallel simultaneously completion upper strata in the switching of link layer and switches; Thereby, packet loss and handover delay when the IP layer switches have been reduced than switching the IP layer behind traditional switching mode elder generation handoff links layer.
But such scheme does not solve the problem of motion detection time delay.The mobile terminal device that has multiple interfaces such as WIFI/3G now is more and more universal.This Terminal Type equipment has the mobility of height, and the user hopes that they can use the access heterogeneous network of many interface adaptives, carries out transfer of data.But the design of traditional network side mechanism and agreement is based on static node, homogeneous network and the access of single interface, therefore can not well support the demand.And some strides the layer-two mobility management agreement through using the information of link layer, like signal strength signal intensity, packet loss etc., has reduced the motion detection time delay.As Position Tracking mechanism and classification MIP handover mechanism are combined, follow the tracks of MN through measure signal intensity, use trace information to support the MIP of low time delay to switch then.In recent years, stride layer improvement of the performance of handoffs that design brings and constantly receive publicity, the switch application in many IP territory has effectively utilized the transmission of striding layer message, has guaranteed the continuity of switching flow and IP address assignment.
Summary of the invention
Technical problem to be solved by this invention is: a kind of group user heterogeneous network switch method based on QoS of survice is provided, and the pre-switch that this method has proposed the IP layer connects, and has guaranteed handoff requirement and switching efficiency.
For solving the problems of the technologies described above, the present invention adopts following technical scheme.
A kind of group user heterogeneous network switch method based on QoS of survice is characterized in that, may further comprise the steps:
Steps A, in heterogeneous network, after the link of terminal layer was initiated handoff request, the IP layer began to carry out pre-switch;
Step B in handoff procedure, at first confirms the priority that pre-switch is professional;
Step C, the optional priority of definite objective network again;
Step D, pre-switch service adaptation self-optimizing select target network, and mate mapping, begin to carry out IP layer pre-switch task at last.
As a kind of preferred version of the present invention, said terminal is for can be operated in the multi-mode mobile terminal device in the heterogeneous networks.
As another kind of preferred version of the present invention; Among the step B; According to the priority that User Priority, service priority and the Traffic Channel quality of mobile terminal device are calculated and definite pre-switch is professional, the priority computing formula of i user's i pre-switch business is following:
ServiceHO-weightedvalue＝a·Ui+b·Si+c·1/Ci
Wherein, a, b, c are weight factor, and Ui is i user's a priority, and Si is the priority of i type of service, and Ci is an i professional channel quality; ServiceHO-weightedvalue is i user's the professional priority of i pre-switch.
As another preferred version of the present invention, among the step C, utilize the weight numerical value of analytic hierarchy process (AHP) calculating target BS, thereby obtain the optional priority of objective network according to RST, loading condition, the disturbed condition of target BS; The optional priority computing formula of i the candidate target network that pre-switch is professional is following:
BSHO-weightedvalue＝u·TNi+v·Wi+w·CTi
Wherein, u, v, w are weight factor, and TNi is the type of i candidate target network, and Wi is the weight numerical value of i candidate target network, and CTi is the channel quality of i candidate target network; BSHO-weightedvalue representes the optional priority of i the candidate target network that pre-switch is professional.
As another preferred version of the present invention, among the step D, initiate handoff request at link layer; Behind the professional definite objective network of pre-switch, directly do not carry out the IP layer and switch connection, but add a timer timer; Just carry out the IP layer behind the elapsed time T and connect, carry out IP layer pre-switch task; Select the size of the timing T of timer timer according to the current business channel quality; When the current business channel quality was relatively good, the numerical value of T was bigger, and the current business channel quality is when very poor, and the numerical value of T is with less, and the maximum of the numerical value of T is that the switching of MAC is broken the time, that is: T ∝ 1/C
iAnd the switching of max{T}≤MAC is broken the time, wherein C
iBe i professional channel quality.
As another preferred version of the present invention, if initiatively initiating to switch, terminal, base station or local area network (LAN) carry out, then directly carry out the connection of IP layer and carry out task switching, do not receive the restriction of timer timer.
As another preferred version of the present invention, also comprise step e: the result who runs succeeded with IP layer pre-switch task carries out self-optimizing to network selecting decision next time; Every handover success once, selecteed objective network weight reduces W%, and the selecteed weight rising of primitive network W%; The network that accumulative total accessed network network weight reaches minimum value MIN _ value can be added into forbids access list; If through after a while, forbid that some business shifts out or sign off in the network in the access list, then said business shifts out or the weight of the access network that is under an embargo of sign off raises automatically W% participates in objective network once more and selects.
Beneficial effect of the present invention is: the group user heterogeneous network switch method based on QoS of survice of the present invention is when portable terminal trigger link layer switches; Switch weights and target BS weight numerical value through using link layer traffic; The pre-switch of carrying out the IP layer connects; Improve customer service quality and switching efficiency, optimized network and balanced load.
Description of drawings
Fig. 1 is for confirming the Consideration sketch map of IP layer pre-switch service queue;
Fig. 2 is for confirming the Consideration sketch map of candidate target network priority;
Fig. 3 is the method flow diagram of switching result feedback of the present invention;
Fig. 4 is for carrying out the determination methods flow chart of IP pre-switch task;
Fig. 5 is the schematic flow sheet of the described group user heterogeneous network switch method based on QoS of survice of embodiment two.
Embodiment
The invention discloses a kind of group user heterogeneous network switch method based on QoS of survice, the suitable scene of this method is positioned the multiple heterogeneous wireless network in same place and covers simultaneously, and a large amount of portable terminals have multi-mode function and can move different business simultaneously.The present invention will be switched the business that object is positioned group user; According to factors such as User Priority, type of service, handoff requirement, RST, moving projection, loading conditions; Call weight factor; Computing service pre-switch weights (weighted value) and target BS associated weight obtain to be switched service queue and pre-switch target BS and set up selection of self adaptation self-optimizing handover network and coupling.
Be mainly used in the present invention in the heterogeneous network after the terminal equipment link layer initiates handoff request; According to service switchover and preparatory access network matching result; The IP layer promptly begins to carry out pre-switch work, and the link layer switching of accomplishing between heterogeneous network for the back provides preparation and ensures; Wherein, service switchover is according to the priority Dynamic Packet, and right to use repeated factor calculates customer service pre-switch weight numerical value; In the candidate target network, pass through the internal weight repeated factor then, calculate the optional priority of objective network etc., service switchover self adaptation self-optimizing handover-target base station selects also to mate mapping, behind the T that holds time; The pre-switch of beginning IP layer; Improve the efficient of professional whole switching, and switching result has feedback effect for the optional weight factor of using in switch selecting next time of network, dynamically adjust weight factor; It is congested to avoid occurring group's switching, reduces professional delay time and packet loss in whole switching.
Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention.
Embodiment one
Present embodiment provides a kind of group user heterogeneous network switch method based on QoS of survice, may further comprise the steps:
Step 1: in heterogeneous network, after the link layer of terminal equipment was initiated handoff request, IP layer (being network layer) began to carry out pre-switch work.
In heterogeneous network, under the handoff requirement situation of multimode terminal operation multiple business generation, IP layer pre-switch technology is to switch beginning before for user terminal carries out the pre-switch of network layer at link layer, and this business that makes has more initiative in handoff procedure.Choose IP layer pre-switch mode, can improve the switching efficiency of whole heterogeneous network, accomplish the high-quality seamless switching.
Step 2: at first confirm the priority that pre-switch is professional.
Consider the adaptive demand of service environment; The present invention is according to factors such as the type of service of pre-switch user position information, pre-switch, channel situation; (Analytic Hierarchy Process AHP) calculates the professional weight numerical value of pre-switch to the utilization analytic hierarchy process (AHP), thereby obtains the professional priority query of pre-switch; Make professionally after the trigger link layer switches, carry out the pre-switch of IP layer according to priority orders is adaptive.Present embodiment uses an overall target to demarcate service priority; Mainly be to calculate the professional weight numerical value of pre-switch, and set up the self adaptation self-optimizing network in the priority of different access networks and select to shine upon with coupling through selection related service factor of influence.After having only MAC (MediaAccess Control, medium access control) handoff request to initiate, can judge just whether the quality of service overall target reaches IP layer pre-switch state.
Present embodiment is provided with the professional channel quality condition of two kinds of pre-switch:
A, relatively poor, after MS initiated the MAC handoff request, portable terminal carried out the pre-switch of IP layer according to triggering after moving lasting a period of time T;
B, very poor, after MS directly initiated handoff request, portable terminal directly triggered according to the target BS of having selected and carries out the pre-switch of IP layer.
The professional handoff requirement of pre-switch comprises contents such as type of service, User Priority, service priority and Traffic Channel quality, for the professional prioritization of follow-up pre-switch.
The evaluation of pre-switch service priority directly has influence on the running quality professional in the handoff procedure in future and the switching efficiency of whole network.Present embodiment is considered priority characteristic in many ways, calls the corresponding weights factor, and substitution is taken advantage of and added comparison, obtains the professional weight numerical value of pre-switch through analytical calculation.The professional weight numerical value of said pre-switch is promptly being represented the professional priority of pre-switch.
The computational process of pre-switch service priority is: as shown in Figure 1; According to information such as User Priority, service priority, Traffic Channel quality; Calculate and the formation of definite IP layer pre-switch service priority, with each pre-switch business in the formation of pre-switch service priority according to priority sequence arrangement from high to low in pre-switch demand traffic table.The priority computing formula of i user's i pre-switch business is following:
ServiceHO-weightedvalue＝a·Ui+b·Si+c·1/Ci
Wherein, a, b, c are weight factor, these weight factors will define in system; Ui is i user's a priority; Si is the priority of i type of service, and for example: real-time service priority is higher than non real-time service priority; Ci is an i professional channel quality; ServiceHO-weightedvalue is i user's the professional priority of i pre-switch.
When judging whether the operation business reaches the demand of IP layer pre-switch in heterogeneous network; Mainly pass through the information interaction between terminal and Cellular Networks BS (base station), the local area network AP (Access Point); Call the weight factor that analytic hierarchy process (AHP) draws, carry out weighting and integrate, adjudicate; Supply subsequent treatment, for example factors such as positional information, type of service, channel situation.
The present invention can be from the professional priority query of pre-switch higher preceding M of choice of dynamical priority professional, carry out group and switch, the raising switching efficiency.
Step 3: the optional priority of confirming objective network.
Utilize analytic hierarchy process (AHP) to calculate the weight numerical value of target BS according to target BS RST, loading condition, disturbed condition etc., thereby obtain the optional priority of objective network.The weight numerical value of target BS refers to according to the access possibility degree of different group user business between heterogeneous networks, promptly selects the possibility of a certain network insertion.For example, the access user before 802.11 networks is less, and the access user of TDLTE network is many, for equilibrium, inserts the priority that 802.11 priority ratio still resides in the TDLTE network and wants high, load that so just can two networks of equilibrium.
As shown in Figure 2; With reference to the professional priority computing formula of pre-switch, in the optimized choice of objective network, take into full account the priority of objective network, the load of objective network, the factors such as channel quality of objective network; According to pre-switch type of service and quantity; Through calculating and relatively, confirming the candidate target network, with the candidate target network according to priority sequence arrangement from high to low.The optional priority computing formula of i the candidate target network that pre-switch is professional is following:
BSHO-weightedvalue＝u·TNi+v·Wi+w·CTi
Wherein, u, v, w are weight factor, they will define in system; TNi is the type of i candidate target network; Wi is the weight numerical value of i candidate target network, and generally the weight numerical value of the weight numeric ratio high-load network of low laod network wants big; CTi is the channel quality of i candidate target network; BSHO-weightedvalue representes the optional priority of i the candidate target network that pre-switch is professional.
Only need call the corresponding weights factor when carrying out above-mentioned judgement, weighting is taken advantage of to add and can be obtained required weight numerical result, and this has guaranteed the reasonability of selected objective network.
Step 4: select optimum IP layer pre-switch timer.
Because through the selected objective network of said method is that service switchover is whole best, but not the single network local optimum, so in order to bring into play the advantage of IP layer pre-switch mode greatly; Increase and switch the overall process gain, the present invention initiates handoff request at MAC, behind the professional definite objective network of pre-switch; Directly do not carry out the IP layer and switch connection; But add a timer timer, and just carry out the IP layer behind the elapsed time T and connect, carry out IP layer pre-switch task; But, not limited by timer if initiatively initiation switching execution such as terminal or BS (base station), AP are then directly carried out the IP layer to connect and hand-off execution process.
It is in order to obtain target BS more accurately, to choose (being choosing of objective network) of optimal objective base station, to carry out the pre-switch of IP layer then that timer time T is set.Prevent to produce Signalling exchange and the IP layer hand-off process that unnecessary switching brings, influence the network switching efficiency.And in the actual handover process, select the size of the timing T of timer timer according to the current business channel quality, therefore when the current business channel quality was relatively good, the numerical value of T was bigger, and the current business channel quality is when very poor, and the numerical value of T is with less.The maximum of the numerical value of T is that the switching of MAC is broken the time, that is:
T ∝ 1/C
iAnd the switching of max{T}≤MAC is broken the time
C wherein
iBe i professional channel quality.Fig. 4 is for carrying out the determination methods flow chart of IP pre-switch task.
Step 5: pre-switch service adaptation self-optimizing select target network, and mate mapping, begin to carry out IP layer pre-switch task at last.
The optimal selection of target access mainly is according to the professional situation of different pre-switch, calculates pre-switch professional weight numerical value and priority, and sets up the self adaptation self-optimizing network with the priority of different access networks and select and the coupling mapping.
Consider the professional priority of pre-switch, the factors such as optional priority of objective network, be the highest objective network of optional priority in professional selected this switch groups of M the highest pre-switch of priority.Because selected objective network makes the whole best results of switching of switch groups; But not the single professional local best results of switching; Therefore behind the preliminary selected objective network that switches; The IP layer should continue a period of time and verify (time of this checking is called handoff threshold), and then begins to switch, and avoids tangible link error to switch and selects.
After IP layer in the heterogeneous network was accomplished the toggle path selection, link layer was not necessarily to reach the switching requirement, if force this moment to switch, for whole network, will lose corresponding network use gain.So to each to be switched business; Base station (BS) picks up counting when link layer is initiated handoff request; Just carry out the IP layer behind the elapsed time T and switch connection, avoid in the link layer change procedure, finding more excellent base station, cause unnecessary IP layer hand off signaling and execution; Can greatly improve network like this and use gain, increase network utilization, and can not influence quality of service.But, then do not receive the time T restriction just can directly carry out the IP layer and switch if terminal and BS, AP initiatively initiate handoff response.Add timer in this step, made handoff procedure only reach thresholding and continue and just begin to carry out the pre-switch of IP layer after the corresponding time, avoided the generation of " ping-pong ".
The present invention has taken into full account the factor of influence of network internal, and according to the priority of business and the optional priority of objective network, self adaptation self-optimizing select target network switches.In pre-switch service selection process; According to task switching what, the professional composition of M pre-switch pre-switch service groups that choice of dynamical priority is the highest is to the characteristic of every kind of business; Consider service-user priority, Traffic Channel quality and situation of movement etc.; Substitution current network factor of influence, it is bigger to calculate the professional functional value of M pre-switch, is this service switchover.The size of numerical value M is confirmed that by the busy extent of network in the target BS if professional more in the target BS of this pre-switch, M is corresponding less; If the objective network load is less, then M is corresponding bigger.
The adaptive characteristics of the present invention show that portable terminal can monitor self-operating type of service and weights, and adjust the switching route of pre-switch optimal objective base station automatically, thereby reach high-priority service QoS demand.Here the object of pre-switch is transferred to the business on the portable terminal, and select different access impact points for different business and carry out the pre-switch of IP layer, use traditional whole switching the in terminal of professional switching replacement, make business have more initiative.
Step 6: switching result feedback.
The switching result that obtains based on the optional priority of the priority of business and objective network; To compare with real switching result; Has feedback effect for switching the judgment condition of using in the selection next time; Increase the update mechanism of network selecting weight, reach and optimize the requirement of switching, raising the efficiency.Switching result is for the feedback effect of the optional weight factor of using in switch selecting next time of network, and dynamically adjusts weight factor, can avoid occurring group and switch congestedly, reduces professional delay time and packet loss at whole handoff procedure.
The analytic hierarchy process (AHP) weight database comprised pre-switch duration thresholding, pre-switch service priority, switch used weight vector when judgement such as selecting.Only need call the corresponding weights factor when carrying out these judgements, weighting is taken advantage of to add and can be obtained required result.For example target is an IP layer pre-switch QoS of survice index, and criterion is that User Priority, type of service, channel situation or the like are confirmed the significance level of customer service and switched weight numerical value, obtains the switching weights of whole customer service.
With switching the result who runs succeeded self-optimizing is carried out in network selecting decision next time, the liberalization process is as shown in Figure 3.Every handover success once, selecteed objective network weight reduces W%, and the selecteed weight rising of primitive network W%.The network that accumulative total accessed network network weight reaches MIN_value (minimum value) can be added into forbids access list.If through after a while, forbid that some business shifts out or sign off in the network in the access list, then this access network that is under an embargo W% that then raises automatically participates in objective network once more and selects.
It is important problem very in the wireless mobile communications that heterogeneous network switches always, also is the problem of a difficult thorough solution.And the adding of the factors such as immeasurability of the multimode property at the otherness of the heterogeneous networks that same place exists, diversity of operations, terminal and environment, handoff procedure in the consolidated network, the complexity of problem increases greatly.Ripe relatively before horizontal handoff algorithms is inapplicable, and is conceived to the research of service environment self adaptation aspect in the heterogeneous network, and difficulty is very big especially.And the present invention is based on QoS of survice, the self-optimizing of carrying out in the group user heterogeneous network is switched, when portable terminal trigger link layer switches; Through using professional pre-switch weight numerical value and target BS weight numerical value; Self adaptation is carried out coupling between the two, and carries out the pre-switch connection of IP layer, and switching result has feedback effect for switching the optional weight factor of using in the selection of network next time; Improve customer service quality and switching efficiency, optimize network and equally loaded.
The switch reasons that the present invention considers is except mobility and access network self-optimizing selection, and the more concern point is the situation of customer service.On the whole the object that switchover policy is before considered is portable terminal itself, and switching when carrying out also is the whole switching in terminal, does not relate to high-rise handoff procedure.And for the heterogeneous network handoff scenario; Various but static relatively waiting room and library, office building etc. of the stream of people for example; Demand according to various types of traffic on the portable terminal and heterogeneous network is different; So need in the handoff procedure to consider when carrying out the link layer switching, for high-priority service (mainly being that VoIP is professional and rtPS is professional) is carried out high-rise switching preparation and routing update.Method of the present invention had both met the requirement of high-priority service low delay on the terminal, also met the overall interests that network switches.
In heterogeneous network switches; Switch weights and target BS weight numerical value according to link layer traffic; The pre-switch of carrying out the IP layer connects, and IP layer pre-switch mode has guaranteed that well the multimode characteristic of handoff requirement and switching efficiency, particularly terminal provides excellent platform to the pre-switch mode; The terminal has the ability to have in continuous Kaiyuan the high level that is ready to insert new target BS on the connection basis to connect fully.And in the pre-switch process, introduce handoff threshold, and can reduce unnecessary IP layer switching times, reduce the signaling load situation, increase network utilization; Introduce the professional priority of pre-switch and the optional priority of objective network,, dynamically adjust handover-target base station, can raise the efficiency greatly, increase handoff gain according to task switching type and network condition.
Embodiment two
The application scenarios that the present invention considers is at the more large-scale public place of the stream of people, like office building, library, waiting room etc.; The heterogeneous network type of considering is unrestricted, and present embodiment is chosen 802.11 and explained as an example that with TDLTE promptly portable terminal has above two kinds of access waies; The type of service of considering also is divided into speech business (Voice over Internet Protocol; VoIP), real time business (Real-time Polling Service; RtPS), non-real-time service (Non-real-time Polling Service; NrtPS) and Best-Effort service (Best Effort Service, BE) etc.
Present embodiment provides a kind of group user heterogeneous network switch method based on QoS of survice, and the flow process of this method is as shown in Figure 5, may further comprise the steps:
1) terminal A is a multimode terminal, its can 802.11 with two kinds of networks of TDLTE in communicate by letter.The business of terminal A inserts the TDLTE network at the beginning, and in the process of monitoring Traffic Channel quality and objective network, terminal A enters in the local area network (LAN) of WLAN covering, and residence time is longer, reaches the handoff requirement thresholding that sets then.
2) Mobile IP processing unit is the new on-link care-of address of business configuration of terminal A, and the business that reaches the handoff requirement thresholding is initiated handoff request; Mobile IP processing unit is adjusted weight parameter through behind the time_value, and data use new route tunnel to transmit at the IP layer.
3) terminal A sends switching command and the request that networks again at 802.11 network schemers to Mobile IP processing unit, and data are carried out new routing update at the IP layer.Professional as main body; Initiate handoff procedure; Through analytic process as shown in Figure 1; The partial service of final terminal A is linked into 802.11 networks, reaches to guarantee that quality of service and network use balanced purpose, and the information updating after network successfully inserts is again the foundation that the handover optimization of next time provides access network to select.
Description of the invention and application are illustrative, are not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other forms, structure, layout, ratio, and realize with other elements, material and parts.
Claims (7)
1. the group user heterogeneous network switch method based on QoS of survice is characterized in that, may further comprise the steps:
Steps A, in heterogeneous network, after the link of terminal layer was initiated handoff request, the IP layer began to carry out pre-switch;
Step B in handoff procedure, at first confirms the priority that pre-switch is professional;
Step C, the optional priority of definite objective network again;
Step D, pre-switch service adaptation self-optimizing select target network, and mate mapping, begin to carry out IP layer pre-switch task at last.
2. the group user heterogeneous network switch method based on QoS of survice according to claim 1, it is characterized in that: said terminal is for can be operated in the multi-mode mobile terminal device in the heterogeneous networks.
3. the group user heterogeneous network switch method based on QoS of survice according to claim 1; It is characterized in that: among the step B; According to the priority that User Priority, service priority and the Traffic Channel quality of mobile terminal device are calculated and definite pre-switch is professional, the priority computing formula of i user's i pre-switch business is following:
ServiceHO-weightedvalue＝a·Ui+b·Si+c·1/Ci
Wherein, a, b, c are weight factor, and Ui is i user's a priority, and Si is the priority of i type of service, and Ci is an i professional channel quality; ServiceHO-weightedvalue is i user's the professional priority of i pre-switch.
4. the group user heterogeneous network switch method based on QoS of survice according to claim 1; It is characterized in that: among the step C; RST, loading condition, disturbed condition according to target BS utilize analytic hierarchy process (AHP) to calculate the weight numerical value of target BS, thereby obtain the optional priority of objective network; The optional priority computing formula of i the candidate target network that pre-switch is professional is following:
BSHO-weightedvalue＝u·TNi+v·Wi+w·CTi
Wherein, u, v, w are weight factor, and TNi is the type of i candidate target network, and Wi is the weight numerical value of i candidate target network, and CTi is the channel quality of i candidate target network; BSHO-weightedvalue representes the optional priority of i the candidate target network that pre-switch is professional.
5. the group user heterogeneous network switch method based on QoS of survice according to claim 1; It is characterized in that: among the step D, initiate handoff request, behind the professional definite objective network of pre-switch at link layer; Directly do not carry out the IP layer and switch connection; But add a timer timer, and just carry out the IP layer behind the elapsed time T and connect, carry out IP layer pre-switch task; Select the size of the timing T of timer timer according to the current business channel quality; When the current business channel quality was relatively good, the numerical value of T was bigger, and the current business channel quality is when very poor, and the numerical value of T is with less, and the maximum of the numerical value of T is that the switching of MAC is broken the time, that is: T ∝ 1/C
iAnd the switching of max{T}≤MAC is broken the time, wherein C
iBe i professional channel quality.
6. the group user heterogeneous network switch method based on QoS of survice according to claim 5; It is characterized in that: carry out if terminal, base station or local area network (LAN) initiatively initiate to switch; Then directly carry out the connection of IP layer and carry out task switching, do not receive the restriction of timer timer.
7. the group user heterogeneous network switch method based on QoS of survice according to claim 1 is characterized in that, also comprises step e: the result who runs succeeded with IP layer pre-switch task carries out self-optimizing to network selecting decision next time; Every handover success once, selecteed objective network weight reduces W%, and the selecteed weight rising of primitive network W%; The network that accumulative total accessed network network weight reaches minimum value MIN _ value can be added into forbids access list; If through after a while, forbid that some business shifts out or sign off in the network in the access list, then said business shifts out or the weight of the access network that is under an embargo of sign off raises automatically W% participates in objective network once more and selects.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857014A (en) * | 2012-12-07 | 2014-06-11 | 华为技术有限公司 | Service establishment method and device and system for multimode user equipment |
| CN103987029A (en) * | 2013-02-08 | 2014-08-13 | 华为技术有限公司 | Service processing method and related devices |
| CN105163358A (en) * | 2015-06-26 | 2015-12-16 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Pre-ranking POS network selection method for group switching based on business type |
| CN105491611A (en) * | 2016-01-25 | 2016-04-13 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Wireless network switching method and system |
| CN107018070A (en) * | 2016-01-28 | 2017-08-04 | 南水北调中线干线工程建设管理局 | A kind of isomery multimode gateway equipment and its transmission method and application |
| CN111556516A (en) * | 2020-05-25 | 2020-08-18 | 南京邮电大学 | Distributed wireless network task cooperative distribution method facing delay and energy efficiency sensitive service |
| CN113127171A (en) * | 2017-12-11 | 2021-07-16 | 阿菲尼帝有限公司 | Techniques for behavioral pairing in a task distribution system |
| CN113393146A (en) * | 2021-06-25 | 2021-09-14 | 重庆大学 | Multi-stage flexible test system reliability evaluation method based on Bayesian network |
| CN113873605A (en) * | 2021-09-18 | 2021-12-31 | 联想(北京)有限公司 | Network switching method and device, electronic equipment and storage medium |
| CN114615715A (en) * | 2022-02-25 | 2022-06-10 | 北京邮电大学 | Base station switching method based on user service under high-speed movement and related equipment |
| CN115333887A (en) * | 2022-07-25 | 2022-11-11 | 中国电子科技集团公司第十研究所 | Multi-access fusion method and system for measurement and control communication network |
| CN117440427A (en) * | 2023-12-21 | 2024-01-23 | 中国电信股份有限公司深圳分公司 | WiFi network networking quality diagnosis method, device and equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705285A (en) * | 2004-05-31 | 2005-12-07 | 中国科学院声学研究所 | Tunnel based mobile IPv6 quick switching method |
| CN1705304A (en) * | 2004-05-31 | 2005-12-07 | 中国科学院声学研究所 | AAA authentication method during fast switch-over process |
| US20070115899A1 (en) * | 2005-11-22 | 2007-05-24 | Shlomo Ovadia | Method, apparatus and system architecture for performing handovers between heterogeneous wireless networks |
| KR20070103980A (en) * | 2006-04-20 | 2007-10-25 | 한국정보통신주식회사 | Method for guaranteeing quality of service between each other wireless communication networks by using switching function of communication protocol stack, terminal devices and recording medium |
| CN101516115A (en) * | 2008-12-23 | 2009-08-26 | 同济大学 | Method for carrying out adaptive optimization switching on group services based on demand prediction and priority |
| CN101925148A (en) * | 2009-06-11 | 2010-12-22 | 上海无线通信研究中心 | Method for estimating speed class of mobile terminal in multilevel cellular system |
-
2011
- 2011-04-25 CN CN2011101035659A patent/CN102761928A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705285A (en) * | 2004-05-31 | 2005-12-07 | 中国科学院声学研究所 | Tunnel based mobile IPv6 quick switching method |
| CN1705304A (en) * | 2004-05-31 | 2005-12-07 | 中国科学院声学研究所 | AAA authentication method during fast switch-over process |
| US20070115899A1 (en) * | 2005-11-22 | 2007-05-24 | Shlomo Ovadia | Method, apparatus and system architecture for performing handovers between heterogeneous wireless networks |
| KR20070103980A (en) * | 2006-04-20 | 2007-10-25 | 한국정보통신주식회사 | Method for guaranteeing quality of service between each other wireless communication networks by using switching function of communication protocol stack, terminal devices and recording medium |
| CN101516115A (en) * | 2008-12-23 | 2009-08-26 | 同济大学 | Method for carrying out adaptive optimization switching on group services based on demand prediction and priority |
| CN101925148A (en) * | 2009-06-11 | 2010-12-22 | 上海无线通信研究中心 | Method for estimating speed class of mobile terminal in multilevel cellular system |
Non-Patent Citations (3)
| Title |
|---|
| 曾锐畦: "自适应门限的异构无线网络预切换机制", 《计算机应用》 * |
| 祝建建: "异构无线网络融合相关技术研究", 《中国优秀硕士论文全文数据库信息科技辑2010年11期》 * |
| 贺昕，聂晶，周正: "基于Diameter的L2异构网络切换", 《微电子学与计算机》 * |
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| CN103857014A (en) * | 2012-12-07 | 2014-06-11 | 华为技术有限公司 | Service establishment method and device and system for multimode user equipment |
| US9661567B2 (en) | 2012-12-07 | 2017-05-23 | Huawei Technologies Co., Ltd. | Method, apparatus and system for service establishment for multi-mode user equipment |
| CN103987029A (en) * | 2013-02-08 | 2014-08-13 | 华为技术有限公司 | Service processing method and related devices |
| CN103987029B (en) * | 2013-02-08 | 2018-01-09 | 华为技术有限公司 | Method for processing business and relevant device |
| CN105163358A (en) * | 2015-06-26 | 2015-12-16 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Pre-ranking POS network selection method for group switching based on business type |
| CN105163358B (en) * | 2015-06-26 | 2019-05-14 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Pre- sequence PSO network selecting method based on type of service in group switching |
| CN105491611A (en) * | 2016-01-25 | 2016-04-13 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Wireless network switching method and system |
| CN105491611B (en) * | 2016-01-25 | 2019-02-05 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Wireless network switching method and system |
| CN107018070A (en) * | 2016-01-28 | 2017-08-04 | 南水北调中线干线工程建设管理局 | A kind of isomery multimode gateway equipment and its transmission method and application |
| CN113127171A (en) * | 2017-12-11 | 2021-07-16 | 阿菲尼帝有限公司 | Techniques for behavioral pairing in a task distribution system |
| CN111556516A (en) * | 2020-05-25 | 2020-08-18 | 南京邮电大学 | Distributed wireless network task cooperative distribution method facing delay and energy efficiency sensitive service |
| CN111556516B (en) * | 2020-05-25 | 2022-08-16 | 南京邮电大学 | Distributed wireless network task cooperative distribution method facing delay and energy efficiency sensitive service |
| CN113393146A (en) * | 2021-06-25 | 2021-09-14 | 重庆大学 | Multi-stage flexible test system reliability evaluation method based on Bayesian network |
| CN113393146B (en) * | 2021-06-25 | 2022-12-20 | 重庆大学 | Multi-stage flexible test system reliability evaluation method based on Bayesian network |
| CN113873605A (en) * | 2021-09-18 | 2021-12-31 | 联想(北京)有限公司 | Network switching method and device, electronic equipment and storage medium |
| CN114615715A (en) * | 2022-02-25 | 2022-06-10 | 北京邮电大学 | Base station switching method based on user service under high-speed movement and related equipment |
| CN114615715B (en) * | 2022-02-25 | 2023-08-22 | 北京邮电大学 | Base station switching method based on user service under high-speed movement and related equipment |
| CN115333887A (en) * | 2022-07-25 | 2022-11-11 | 中国电子科技集团公司第十研究所 | Multi-access fusion method and system for measurement and control communication network |
| CN115333887B (en) * | 2022-07-25 | 2023-10-03 | 中国电子科技集团公司第十研究所 | Multi-access fusion method and system for measurement and control communication network |
| CN117440427A (en) * | 2023-12-21 | 2024-01-23 | 中国电信股份有限公司深圳分公司 | WiFi network networking quality diagnosis method, device and equipment |
| CN117440427B (en) * | 2023-12-21 | 2024-03-19 | 中国电信股份有限公司深圳分公司 | WiFi network networking quality diagnosis method, device and equipment |
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