CN104023361A - Switching method and system - Google Patents
Switching method and system Download PDFInfo
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- CN104023361A CN104023361A CN201310063142.8A CN201310063142A CN104023361A CN 104023361 A CN104023361 A CN 104023361A CN 201310063142 A CN201310063142 A CN 201310063142A CN 104023361 A CN104023361 A CN 104023361A
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Abstract
The invention is suitable for the mobile communication technical field, and provides a switching method and a system; the method comprises the following steps: in a process in which a UE is switched from a source site to a target site, a shunting negotiation initiation site calculates a business transmission rate of a business data packet to be shunted to the shunting target site; a request message is sent to the shunting target site so as to inform the shunting target site to calculate whether the target site can satisfy the business transmission rate requirement contained in the request message or not according to a load and remained resources; if yes, a response success message sent by the shunting target site is received, and a data packet shunting forwarding indication message is sent to a shunting data packet forwarding site; the shunting data packet forwarding site shunts the business data packet to be shunted to the shunting target site to the target site according to the indication message. In the process in which the UE is switched from the source site to the target site, data transmission can be carried out between the shunting target site and the UE.
Description
Technical field
The invention belongs to mobile communication technology field, relate in particular to a kind of changing method, system.
Background technology
The subscriber equipment of mobile communications network (User Equipment, UE) switches to targeted sites handoff procedure from Source Site generally can be divided into four parts: measurement, processing, decision-making and execution.Handover measurement (handover decisions is based on channel measurement) is processed at down link by UE.Processing is that these are processed, measure and will report to base station with the form of periodicity or Event triggered in order to filter out rapid fading effect and layer 1 defect of measuring/estimating.The processing of the beginning of therefore switching based on handover measurement, if switching condition is met, the Target cell that targeted sites covers will become the Serving cell of UE under the assistance of UE.It should be noted that, website is physical equipment, and community is concept in logic, and a general website can have 3 or 6 communities (sector).If 3 communities, the angles of the chances are in each sector 120 degree.To the overlapping community part in cell-of-origin and Target cell, if the signal strength signal intensity of targeted sites Gai community part is large, Ze Gai community part is Target cell, otherwise this community part is cell-of-origin.
In handover decisions process, targeted sites will be carried out acceptance judging according to information such as the loading condition of current area and UE types of service, if the load of Target cell surpasses thresholding, the switching admission control algorithm of Target cell generally can be refused the handover request of Source Site, and this can cause handoff failure or cause UE call drop.
In hand-off execution process, UE needs radio resource control (the Radio Resource Control of source of release community, RRC) connect, search for the signal of Target cell, and detect the synchronizing channel of Target cell, carry out the processing procedures such as synchronous and random access, during this processing procedure, transfer of data between UE and source and target website stops, and shows as UE in handoff procedure, and transfer of data exists " falling hole " phenomenon.
Switch complete after, to switch to example between macro station, because 2 macro station loads are different, before and after switching, the message transmission rate of UE when different macro stations is different, the experience of giving user is that user's Mobile Transmission speed between different districts is different, can not accomplish the experience of user's indifference, and micro-station resource is not fully utilized yet.
In sum, the UE of prior art is switching to from cell-of-origin the process of Target cell, the equal defect of user experience quality (Quality of Experience, QoE) that can exist handoff failure, data " to fall hole " and switch front and back UE.
Summary of the invention
It is a kind of that the embodiment of the present invention provides, and the UE that is intended to solve prior art is switching to the process of targeted sites from Source Site, exist handoff failure, data " fall hole " and switch before and after the different problem of QoE of UE.
On the one hand, provide a kind of changing method, described method comprises:
At user equipment (UE), from Source Site, switch to the process of targeted sites,
Shunting is consulted to initiate website and is wrapped in the service transmission rate of Source Site and the expection service transmission rate of targeted sites according to the business datum of described subscriber equipment, and calculating need to be diverted to the service transmission rate of the business data packet of shunting targeted sites;
Shunting is consulted to initiate website and is sent a request message to shunting targeted sites, notify described shunting targeted sites according to the load of self, surplus resources, calculate the requirement whether can meet the service transmission rate that described request message comprises, if met, described shunting consults to initiate the success message of replying that website receives described shunting targeted sites transmission;
Described shunting is consulted to initiate website and is received replying after success message of shunting targeted sites transmission, sending packet divides flow forwarding Indication message to streamed data bag repeater station, notify described streamed data bag repeater station, according to described Indication message, the business data packet of described subscriber equipment is diverted to described shunting targeted sites, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
In the first possibility implementation of first aspect, when Source Site is source macro station, when targeted sites is target macro station, it is described source macro station that described shunting is consulted to initiate website, described shunting targeted sites is micro-station, and described streamed data bag repeater station is target macro station; Or it is target macro station that described shunting is consulted to initiate website, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is gateway; When Source Site is micro-station, source, when targeted sites is the micro-station of target, it is micro-station, source that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is macro station; Or it is the micro-station of target that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is gateway; When Wei Zhanshi source, source wifi website, when targeted sites is target wifi website, it is user equipment (UE) that described shunting is consulted to initiate website, and described shunting targeted sites is 2G/3G/LTE cellular network website, and described streamed data bag repeater station is gateway.
In the second possibility implementation of first aspect, controlling under carrying separated network framework, it is controller that described shunting is consulted to initiate website, and described shunting targeted sites is the website except handover source website and switching targeted sites, and described streamed data bag repeater station is gateway.
Second aspect, provides a kind of changing method, and described method comprises:
At user equipment (UE), from Source Site, switch to the process of targeted sites,
Shunting targeted sites receives shunting and consults to initiate the request message that website sends;
Shunting targeted sites is according to the load of self, surplus resources, calculates the requirement whether can meet the service transmission rate that described request message comprises;
If, shunt targeted sites transmission and reply success message to shunting negotiation initiation website, notifying described shunting to consult to initiate website transmission packet divides flow forwarding Indication message to streamed data bag repeater station, the business data packet of described UE is diverted to described shunting targeted sites by described streamed data bag repeater station according to described Indication message, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
In the first possibility implementation of second aspect, in described shunting targeted sites, send and reply success message to shunting negotiation initiation website, notifying described shunting to consult to initiate website transmission packet divides flow forwarding Indication message to streamed data bag repeater station, before the business data packet of described UE being diverted to described shunting targeted sites by described streamed data bag repeater station according to described Indication message, also comprise:
Shunting targeted sites is set up the carrying configuration of all business of UE.
The third aspect, provides a kind of shunting to consult to initiate website, and described shunting is consulted to initiate website and comprised:
Shunting rate calculations unit, for wrap in the service transmission rate of Source Site and the expection service transmission rate of targeted sites according to the business datum of subscriber equipment, calculating need to be diverted to the service transmission rate of the business data packet of shunting targeted sites;
Shunting request transmitting unit, for sending a request message to shunting targeted sites, notify described shunting targeted sites according to the load of self, surplus resources, calculate the requirement whether can meet the service transmission rate that described request message comprises, if met, receive the success message of replying of described shunting targeted sites transmission;
Shunting indication transmitting element, for receiving replying after success message that described shunting targeted sites sends, sending packet divides flow forwarding Indication message to streamed data bag repeater station, notify described streamed data bag repeater station, according to described Indication message, the business data packet of described subscriber equipment is diverted to described shunting targeted sites, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
In the first possibility implementation of the third aspect, when Source Site is source macro station, when targeted sites is target macro station, it is described source macro station that described shunting is consulted to initiate website, described shunting targeted sites is micro-station, and described streamed data bag repeater station is target macro station; Or it is target macro station that described shunting is consulted to initiate website, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is gateway; When Source Site is micro-station, source, when targeted sites is the micro-station of target, it is micro-station, source that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is macro station; Or it is the micro-station of target that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is gateway; When Wei Zhanshi source, source wifi website, when targeted sites is target wifi website, it is user equipment (UE) that described shunting is consulted to initiate website, and described shunting targeted sites is 2G/3G/LTE cellular network website, and described streamed data bag repeater station is gateway.
In the second possibility implementation of the third aspect, controlling under carrying separated network framework, it is controller that described shunting is consulted to initiate website, and described shunting targeted sites is the website except handover source website and switching targeted sites, and described streamed data bag repeater station is gateway.
Fourth aspect, provides a kind of shunting targeted sites, and described shunting targeted sites comprises:
Shunting request reception unit, consults to initiate for receiving shunting the request message that website sends;
Shunting condition computing unit, for according to the load of self, surplus resources, calculates the requirement that whether can meet the service transmission rate that described request message comprises;
Reply transmitting element, for if, send and reply success message to shunting negotiation initiation website, notifying described shunting to consult to initiate website transmission packet divides flow forwarding Indication message to streamed data bag repeater station, the business data packet of subscriber equipment is diverted to described shunting targeted sites by described streamed data bag repeater station according to described Indication message, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
In the first possibility implementation of fourth aspect, described shunting targeted sites also comprises:
Unit is set up in carrying configuration, for setting up the carrying configuration of all business of UE.
The 5th aspect, provides a kind of switched system, and described system comprises streamed data bag repeater station, also comprises shunting negotiation initiation website as above and shunting targeted sites as above.
In the embodiment of the present invention, at UE, from Source Site, switch to the handoff procedure of targeted sites, by shunting, consulted to initiate to shunt negotiation between website, shunting targeted sites and streamed data bag repeater station, adjust the data of UE at the service transmission rate of shunting targeted sites, in the process of switching, between shunting targeted sites and UE, can carry out transfer of data, effectively promote performance of handoffs.
Accompanying drawing explanation
Fig. 1 is the system scene schematic diagram that changing method was suitable for that one embodiment of the invention provides;
Fig. 2 is the system scene schematic diagram that changing method was suitable for that further embodiment of this invention provides;
Fig. 3 is the interaction diagrams of the changing method that provides of another embodiment of the present invention;
Fig. 4 is the system scene schematic diagram under control carrying separated network framework that changing method was suitable for that further embodiment of this invention provides;
Fig. 5 is the interaction diagrams of the changing method that provides of further embodiment of this invention;
Fig. 6 is the interaction diagrams of the changing method that provides of further embodiment of this invention;
Fig. 7 is the interaction diagrams of the changing method that provides of further embodiment of this invention;
Fig. 8 is the interaction diagrams of the changing method that provides of further embodiment of this invention;
Fig. 9 is the interaction diagrams of the changing method that provides of further embodiment of this invention;
Figure 10 is the interaction diagrams of the changing method that provides of further embodiment of this invention;
Figure 11 is the structured flowchart of the switched system that provides of further embodiment of this invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In embodiments of the present invention, at UE, from Source Site, switch to the handoff procedure of targeted sites, by shunting, consulted to initiate to shunt negotiation between website, shunting targeted sites and streamed data bag repeater station, adjust the data of UE at the service transmission rate of shunting targeted sites, in the process of switching, between shunting targeted sites and UE, can carry out transfer of data.
Below in conjunction with specific embodiment, realization of the present invention is described in detail:
Fig. 1 shows the system scene schematic diagram that changing method was suitable for that one embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the present embodiment.
As shown in Figure 1, this system comprises macro station 1, macro station 2, micro-station 3 and subscriber equipment 4.In this scene, between macro station 1 and macro station 2, to switch, micro-station 3 is constant, plays shunting action.Micro-station here comprises the micro-station of LTE/3G/2G or Wifi website, and in the situation that not mentioning that micro-station is Wifi website, this micro-station is the micro-station of LTE/3G/2G.
Fig. 2 shows the system scene schematic diagram that changing method was suitable for that another embodiment of the present invention provides, and for convenience of explanation, only shows the part relevant to the present embodiment.
As shown in Figure 2, this system comprises macro station 1, micro-station 2, micro-station 3 and subscriber equipment 4.In this scene, between micro-station 2 and micro-station 3, to switch, macro station 1 is constant, plays shunting action.Micro-station here comprises the micro-station of LTE/3G/2G or Wifi website, and in the situation that not mentioning that micro-station is Wifi website, this micro-station is the micro-station of LTE/3G/2G.
Fig. 3 shows the interaction flow of the changing method that another embodiment of the present invention provides, this flow process is by switching to the process of targeted sites at user equipment (UE) from Source Site, by shunting, consulted to initiate to shunt negotiation between website, shunting targeted sites and streamed data bag repeater station, adjust the data of UE in transmission shunt ratio and the transmitting and scheduling priority of shunting targeted sites, realize the object that promotes performance of handoffs, details are as follows:
1, shunting is consulted to initiate website and is wrapped in the service transmission rate of Source Site and the expection UE service transmission rate of targeted sites according to the business datum of user equipment (UE), and calculating need to be diverted to the service transmission rate of the business data packet of shunting targeted sites.
2, shunting negotiation initiation website sends a request message to shunting targeted sites, carries the requirement of the service transmission rate of the business data packet that is diverted to shunting targeted sites in described request message.
Wherein, in this request message, can also comprise guarantee speed.Ensure that speed is the business transmission minimum-rate that ensures that user experiences, such as speech business or video call service, secure rate requirement all.
In addition, in request message, can also carry the maximum traffic transmission rate of shunting targeted sites and need to increasing, type of service and the transmitting and scheduling priority that shunting targeted sites need to be supported.
Wherein, maximum traffic transmission rate is to take too much Internet resources for fear of a business, therefore can limit the maximum traffic transmission rate of shunting targeted sites.Such as a user is with FTP downloading high definition film, can limit by maximum traffic transmission rate, to avoid this business too much to take Internet resources, other users' service be can not be guaranteed.
The type of service of shunting targeted sites support comprises such as speech business, video traffic etc., and dispatching algorithm is determined the scheduling requirement of business according to type of service, such as speech business may be used semi-persistent scheduling etc.
Transmitting and scheduling priority is to be directly proportional to the number of times of website dispatched users.We know, even if what different user was used is identical business, and above-mentioned several indexs such as the guarantee speed between their business are identical, but because historical scheduling situation between user is different, some scheduling many, lacking of some scheduling, some signal quality of eating dishes without rice or wine is good, and some poor signal quality of eating dishes without rice or wine, so in order to ensure the justice between user, when user is dispatched, dispatch according to its transmitting and scheduling priority.This priority is exactly a numeral, and such as just starting, the initial value of each user's transmitting and scheduling priority is 1, rear party A-subscriber is scheduled often, and the number of times that party B-subscriber is scheduled is few, party A-subscriber's transmitting and scheduling priority is exactly 1.2 so, and party B-subscriber's transmitting and scheduling priority is 0.9 etc.
3, described shunting targeted sites is according to the load of self, surplus resources, calculates the requirement that whether can meet the service transmission rate that described request message comprises.
If 4 meet, shunt targeted sites transmission and reply success message to described shunting negotiation initiation website.
5, described shunting negotiation initiation website transmission packet divides flow forwarding Indication message to streamed data bag repeater station.
6, according to described Indication message, the business data packet of UE is diverted to described shunting targeted sites, in described Indication message, carries the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
Wherein, in Indication message, can also carry and indicate the data of the UE that branches to described shunting targeted sites in guarantee speed, maximum traffic transmission rate, type of service, maximum delay and the shunt ratio of described shunting targeted sites.
Wherein, with above-mentioned guarantee speed, maximum delay is also an important indicator, and such as QQ class is second-time to delay requirement, and the time delay that email etc. allow can be longer, time delay that can minute level.
Streamed data bag repeater station can forward user's business data packet according to shunt ratio.Such as a user's packet has 2M altogether, shunt ratio is 40% to micro-station, so just the packet of 0.8M is diverted to micro-station.
In above-mentioned shunting negotiations process, suppose there is suitable shunting targeted sites (being that UE is in its coverage), concrete shunting can be shunted means accordingly according to its target selection.Certainly, if not shunting of UE before switching, that needs to start shunting in order to reach the above-mentioned object of improving data transmission performance by shunting.
In addition, preferred, before step 6 is carried out, also need to shunt the carrying configuration that targeted sites is set up all business of UE.
Such as, in the scene 1 shown in Fig. 1, the transfer of data of UE before switching is by macro station 1 and micro-station 3, and in handoff procedure, UE interrupts (because UE will search for macro station 2 signals to be connected foundation with macro station 2) with the data transmission channel between macro station 1, so now between network and UE, all transfer of data are all transmitted by shunting targeted sites, this just requires to shunt the configuration information that targeted sites need to have all service bearers of UE.And before switching, may shunt the partial service processing parameter configuration that targeted sites only disposes UE, as UE has 2 business of voice-and-data, high-level signaling and speech business are transmitted in LTE macro station, data service, in the transmission of Wifi website, realizes the shunting of LTE+Wifi.Under this scene, LTE macro station only has the configuration information of signaling and speech business, and Wifi website only has the configuration information of data service.And will realize the shunting website using Wifi website as target, realize shunting, while needing UE to switch, on Wifi website, set up the carrying configuration of signaling and speech business between LTE macro station.
It should be noted that, UE is divided into handoff preparation phase, handover execution stage and switching at the handoff procedure that switches to targeted sites from Source Site and completes the stage.
Wherein, when Source Site is source macro station, when targeted sites is target macro station, and when described shunting negotiation initiation website is source macro station, shunting negotiation is to complete in handover execution stage and the switching stage of completing, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is target macro station.
When Source Site is source macro station, when targeted sites is target macro station, and described shunting consult to initiate website while being target macro station, and to consult be to complete in handoff preparation phase in shunting, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is gateway.
When Source Site is micro-station, source, when targeted sites is the micro-station of target, and described shunting consult to initiate website while being micro-station, source, and shunting negotiation is to complete in handover execution stage and the switching stage of completing, described shunting targeted sites is macro station, and described streamed data bag repeater station is macro station community.
When Source Site is micro-station, source, when targeted sites is the micro-station of target, when described shunting negotiation initiation website is the micro-station of target, shunting negotiation is to complete in handoff preparation phase, and described shunting targeted sites is macro station, and described streamed data bag repeater station is gateway.
Concrete, when Wei Zhanshi source, source wifi website, when targeted sites is target wifi website, shunting negotiation is to complete in handoff preparation phase, it is user equipment (UE) that described shunting is consulted to initiate website, described shunting targeted sites is 2G/3G/LTE cellular network website, and described streamed data bag repeater station is gateway.
In addition, controlling under carrying separated network framework, it is controller that described shunting is consulted to initiate website, and it is to complete in handoff preparation phase that shunting is consulted, described shunting targeted sites is the website except Source Site and targeted sites, and described streamed data bag repeater station is gateway.As shown in Figure 4, switching and shunting is all by controller decision-making, and controller serves as handover decisions website simultaneously and shunts and consult to initiate 2 roles of website.When controller judgement need to be switched, controller is according to the shunting of the state information of each website (comprising load) determination data and shunt how many traffic carrying capacitys to shunting targeted sites.
It should be noted that, can select to shunt targeted sites according to following principle:
1), switch between macro station, before switching, UE has reported the micro-station that meets the condition of shunting of eating dishes without rice or wine to Source Site, selects the micro-station that meets the condition of shunting of eating dishes without rice or wine as shunting targeted sites;
2) between macro station, switch, in the report of UE handover measurement, carry the micro-station of shunting information, select the micro-station conduct shunting targeted sites in report;
3) between macro station, switch, Source Site judgement UE needs to switch, by Source Site, indication UE measures shunting micro-station, if UE measurement has micro-station (signal quality is greater than certain thresholding) of satisfied shunting condition, UE sends measurement report to Source Site, carry shunting targeted sites ID, the micro-station in State selective measurements report is as shunting targeted sites;
4) between macro station, switch, shunting targeted sites is selected in the position of Source Site based on UE;
5) between micro-station, switch, select corresponding macro station as shunting targeted sites.
The present embodiment, at UE, from Source Site, switch to the handoff procedure of targeted sites, by shunting, consulted to initiate to shunt negotiation between website, shunting targeted sites and streamed data bag repeater station, the business datum of adjusting UE wraps in the service transmission rate of shunting targeted sites, in the process of switching, between shunting targeted sites and UE, can carry out transfer of data, effectively promote performance of handoffs.
Fig. 5 shows the interaction flow of the changing method that further embodiment of this invention provides, this flow process is by carrying out and complete the stage in the switching that switches to target macro station from source macro station at user equipment (UE), by shunting negotiation between source macro station, micro-station and target macro station, wherein, source macro station consults to initiate website as shunting, micro-station is as shunting targeted sites, and target macro station is as streamed data bag repeater station, and details are as follows:
1, user equipment (UE) sends to source macro station the quality measurement reports of eating dishes without rice or wine.
2, macro station district in source sends handover request to target macro station.
3, target macro station sends handoff response to source macro station.
4, between source macro station, micro-station and target macro station, shunt negotiation.
5, source macro station sends to switch to UE and reshuffles.
Based on Fig. 5, concrete shunting negotiations process comprises:
1) source macro station wraps in the difference of the service transmission rate of this macro station and the service transmission rate of target macro station (service transmission rate of target macro station carries in switching response message) according to the business datum of UE, and calculating need to branch to the service transmission rate of the business data packet at micro-station;
2) source macro station sends and switches shunting negotiation request message to micro-station, carries the service transmission rate of the business data packet that need to be diverted to micro-station in request message;
3) micro-station is according to its load, surplus resources, calculates the requirement that whether can meet the service transmission rate that request message comprises, if met, sends shunting and replys success message, otherwise send shunting answer failed message;
4) if receiving the shunting at micro-station, source macro station replys success message, send indicating target macro station and the business data packet of UE is diverted to the Indication message at micro-station, in Indication message, carry the service transmission rate that the business datum of business data packet that indication branches to micro-station wraps in micro-station.
The present embodiment, can add the service transmission rate of large shunt targeted sites.When switching between source macro station and target macro station, data distribution that should be by macro station transmitting and scheduling during this, to micro-station, can be increased to business data packet dispatching priority and transmission rate on micro-station, avoid switching reportedly defeated " falling hole ".In addition, according to the transmittability difference of source macro station before and after switching and target macro station, revise the transfer of data ratio of shunting targeted sites.Before switching, grand proton differential flow ratio is 50%+50%, and integral body is 1M to the transmission rate of packet; After having switched, grand proton differential flow ratio is 30%+70%, and transmission rate remains 1M, and before and after making to switch, packet has identical transmission rate, avoids the transmission performance difference of different service cells before and after switching.
Fig. 6 shows the interaction flow of the changing method that further embodiment of this invention provides, this flow process is by switching to the handoff preparation phase of target macro station from source macro station at user equipment (UE), by shunting negotiation between target macro station, micro-station and gateway, wherein, target macro station consults to initiate website as shunting, micro-station is as shunting targeted sites, and gateway is as streamed data bag repeater station, and details are as follows:
1, user equipment (UE) sends to source macro station the quality measurement reports of eating dishes without rice or wine.
2, source macro station sends handover request to target macro station.
3, between target macro station, micro-station and gateway, shunt negotiation.
4, target macro station sends handoff response to source macro station.
5, source macro station sends to switch to UE and reshuffles.
Based on Fig. 6, concrete shunting negotiations process comprises:
1) business datum that target macro station is first calculated UE according to its surplus capacity wraps in the service transmission rate at target macro station, the business datum of calculating again this service transmission rate and UE wraps in the difference of the service transmission rate of source macro station, finally calculates the service transmission rate of the business data packet that need to branch to micro-station;
2) target macro station sends and switches shunting negotiation request message to micro-station, carries the service transmission rate of the business data packet that need to be diverted to micro-station in request message;
3) micro-station is according to its load, surplus resources, calculates the requirement that whether can meet the service transmission rate that request comprises, if met, sends shunting and replys success message, otherwise send shunting answer failed message;
4) if receiving the shunting at micro-station, target macro station replys success message, send indication gateway and the business data packet of subscriber equipment is diverted to the Indication message at micro-station, in Indication message, carry the service transmission rate that business datum that indication branches to micro-station wraps in micro-station.
The present embodiment, switches when judgement access in target macro station, just considers the transmittability more than needed of Wei Zhan community, if micro-station and the total transmittability of target macro station are enough, and handover success.Can increase handover success rate, the handoff failure of avoiding target macro station overload to cause.
Embodiment shown in Fig. 5 and Fig. 6 is all the switchings between macro station, below introduces the switching between micro-station, as shown in Fig. 7,8 and 9.
Fig. 7 shows the interaction flow of the changing method that further embodiment of this invention provides, this flow process is by carrying out and completing the stage in the user equipment (UE) switching that micro-station switches to the micro-station of target from source, by shunting negotiation between the micro-station of macro station and source, wherein, website is consulted to initiate as shunting in micro-station, source, macro station is as shunting targeted sites and streamed data bag repeater station, and details are as follows:
1, to source, micro-station sends the quality measurement reports of eating dishes without rice or wine to user equipment (UE).
2, micro-station, source sends handover request to the micro-station of target.
3, to source, micro-station sends handoff response at target micro-station.
4, between micro-station, source and macro station, shunt negotiation.
5, micro-station, source sends to switch to UE and reshuffles.
Based on Fig. 7, concrete shunting negotiations process comprises:
1) micro-station, source wraps in the difference of the service transmission rate at micro-station, source and the service transmission rate at the micro-station of target (this service transmission rate carries in switching response message) according to the business datum of UE, and calculating need to branch to the service transmission rate of the business data packet of macro station;
2) micro-station, source sends and switches shunting negotiation request message to macro station, carries the service transmission rate of the business data packet that need to be diverted to macro station in request message;
3) macro station is according to its load, surplus resources, calculates the requirement that whether can meet the service transmission rate that request comprises, if met, sends shunting and replys success message, otherwise send shunting answer failed message;
4) if receiving the shunting of macro station, the micro-station of target replys success message, send indication macro station and the business data packet of subscriber equipment is diverted to the Indication message at the micro-station of target, in Indication message, carry the service transmission rate that business datum that indication branches to the micro-station of target wraps in the micro-station of target.
The present embodiment, similar to the embodiment shown in Fig. 5, can add the message transmission rate of large shunt targeted sites.
Fig. 8 shows the interaction flow of the changing method that further embodiment of this invention provides, this flow process is by user equipment (UE), from source, micro-station switches to the handoff preparation phase at the micro-station of target, by shunting and consulted between the micro-station of macro station and source, wherein, website is consulted to initiate as shunting in the micro-station of target, macro station is as shunting targeted sites, and gateway is as streamed data bag repeater station, and details are as follows:
1, to source, micro-station sends the quality measurement reports of eating dishes without rice or wine to user equipment (UE).
2, micro-station, source sends handover request to the micro-station of target.
3, between the micro-station of target, macro station and gateway, shunt negotiation.
4, to source, micro-station sends handoff response at target micro-station.
5, micro-station, source sends to switch to UE and reshuffles.
Based on Fig. 8, concrete shunting negotiations process comprises:
1) business datum that UE is first calculated according to its surplus capacity in the micro-station of target wraps in the service transmission rate at the micro-station of target, the business datum of calculating again this service transmission rate and UE wraps in the difference of the service transmission rate at micro-station, source, finally according to this difference, calculates the service transmission rate of the business data packet that need to branch to macro station;
2) the micro-station of target sends and switches shunting negotiation request message to macro station, carries the service transmission rate of the business data packet that need to be diverted to macro station in request message;
3) macro station is according to its load, surplus resources, calculates the requirement that whether can meet the service transmission rate that request comprises, if met, sends shunting and replys success message, otherwise send shunting answer failed message;
4) if receiving the shunting of macro station, the micro-station of target replys success message, send indication gateway and the business data packet of subscriber equipment is diverted to the Indication message at the micro-station of target, in Indication message, carry the service transmission rate that business datum that indication branches to the micro-station of target wraps in the micro-station of target.
The present embodiment, switches when judgement access at the micro-station of target, just consider the transmittability more than needed of macro station, if total transmittability at macro station and the micro-station of target is enough, and handover success.As switched between micro-station, the service transmission rate of UE is 2M, before switching, grand micro-website provides respectively the service transmission rate of 1M, and the now transmission at the micro-station of target load heavily only has the ability that 0.5M service transmission rate is provided for UE, be himself to be that the service transmission rate of 1M cannot be provided for UE, but consider that macro station is greater than the residue transmittability of 0.5M in addition, UE still accesses successfully at the micro-station of target.
Fig. 9 shows the interaction flow of the changing method that further embodiment of this invention provides, this flow process is by switching to the handoff preparation phase of target wifi website from source wifi website at user equipment (UE), by shunting and consulted between UE, 2G/3G/LTE cellular network website and gateway, wherein, UE consults to initiate website as shunting, 2G/3G/LTE cellular network website is as shunting targeted sites, and gateway is as streamed data bag repeater station, and details are as follows:
1, wifi website in source sends base-station transmission management request message to UE, and request UE is switched to other Wifi websites, and in base-station transmission management request message, carries the load state of candidate target Wifi website.
2, UE consults that by shunting partial service is diverted to 2G/3G/LTE cellular network and transmits, and negotiations process is as follows:
1) UE intercepts rear selected target Wifi website, and according to the business datum that UE is first calculated in the load of target Wifi website, wrap in the service transmission rate of target Wifi website, the business datum of calculating again this service transmission rate and UE wraps in the difference of the service transmission rate of source Wifi website, finally according to this difference, calculates the service transmission rate of the business data packet that need to branch to 2G/3G/LTE cellular network website;
2) UE sends and switches shunting negotiation request message to cellular network website, carries the service transmission rate of the business data packet that need to branch to 2G/3G/LTE cellular network website in request message;
3) cellular network website is according to its load, surplus resources, calculates the requirement that whether can meet the service transmission rate that request comprises, if met, sends and replys success message, otherwise send answer failed message;
4) if UE receives that the shunting of cellular network website replys success message, indicate gateway that the business data packet of UE is diverted to target Wifi website, the business datum of carrying indication UE in message wraps in the service transmission rate of 2G/3G/LTE cellular network website and target Wifi website; Otherwise flow process stops.
3, UE sends base-station transmission managing response message to source Wifi website, informs that source Wifi website UE will be switched to target Wifi website;
4, UE carries out associated with target Wifi website.
The present embodiment, is that micro-station is a kind of special case of Wifi website, and concrete function is similar to the embodiment shown in Fig. 8, does not repeat them here.
Figure 10 shows the interaction flow of the changing method that further embodiment of this invention provides, this flow process is by switching to the handoff preparation phase of target wifi website from source wifi website at user equipment (UE), by shunting and consulted between controller and shunting website, wherein, controller consults to initiate website and streamed data bag repeater station as shunting, shunting website is as shunting targeted sites, this shunting website is except handover source website and switches UE the targeted sites website in its coverage, and details are as follows:
1, wifi website in source sends base-station transmission management request message to UE, and request UE is switched to other Wifi websites, and in base-station transmission management request message, carries the load state of candidate target Wifi website.
2, UE consults that by shunting partial service is diverted to 2G/3G/LTE cellular network and transmits, and negotiations process is as follows:
1) UE intercepts rear selected target Wifi website, and according to the business datum that UE is first calculated in the load of target Wifi website, wrap in the service transmission rate of target Wifi website, the business datum of calculating again this service transmission rate and UE wraps in the difference of the service transmission rate of source Wifi website, finally according to this difference, calculates the service transmission rate of the business data packet that need to branch to 2G/3G/LTE cellular network website;
2) UE sends and switches shunting negotiation request message to cellular network website, carries the service transmission rate of the business data packet that need to be diverted to 2G/3G/LTE cellular network website in request message;
3) cellular network website is according to its load, surplus resources, calculates the requirement that whether can meet the service transmission rate that request comprises, if met, sends and replys success message, otherwise send answer failed message;
4) if UE receives that the shunting of cellular network website replys success message, indicate gateway that the business data packet of UE is diverted to target Wifi website, the business datum of carrying indication UE in message wraps in the service transmission rate of 2G/3G/LTE cellular network website and target Wifi website; Otherwise flow process stops.
5) UE sends base-station transmission managing response message to source Wifi website, informs that source Wifi website UE will be switched to target Wifi website;
6) UE carries out associated with target Wifi website.
Figure 11 shows the structured flowchart of the switched system that further embodiment of this invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.In the present embodiment, this switched system comprises: streamed data bag repeater station, shunting consult to initiate website 111 and shunting targeted sites 112.
Wherein, shunting negotiation initiation website 111 comprises:
Shunting rate calculations unit 1111, for wrapping in the service transmission rate of Source Site and the expection service transmission rate of targeted sites according to the business datum of described subscriber equipment, calculating need to be diverted to the service transmission rate of the business data packet of shunting targeted sites 112;
Shunting request transmitting unit 1112, for sending a request message to shunting targeted sites 112, notify described shunting targeted sites 112 according to the load of self, surplus resources, calculate the requirement whether can meet the service transmission rate that described request message comprises, if met, receive the success message of replying of described shunting targeted sites 112 transmissions;
Shunting indication transmitting element 1113, for receiving replying after success message that described shunting targeted sites 112 sends, sending packet divides flow forwarding Indication message to streamed data bag repeater station, notify described streamed data bag repeater station, according to described Indication message, the business data packet of described subscriber equipment is diverted to described shunting targeted sites 112, in described Indication message, carry indication branch to described shunting targeted sites 112 business datum wrap in the service transmission rate of described shunting targeted sites 112.
Concrete, when Source Site is source macro station, when targeted sites is target macro station, it is described source macro station that described shunting is consulted to initiate website, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is target macro station; Or it is target macro station that described shunting is consulted to initiate website, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is gateway; When Source Site is micro-station, source, when targeted sites is the micro-station of target, it is micro-station, source that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is macro station; Or it is the micro-station of target that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is gateway; When Wei Zhanshi source, source wifi website, when targeted sites is target wifi website, it is user equipment (UE) that described shunting is consulted to initiate website, and described shunting targeted sites is 2G/3G/LTE cellular network website, and described streamed data bag repeater station is gateway.
Concrete, under control carrying separated network framework, it is controllers that described shunting is consulted to initiate website 111, and described shunting targeted sites 112 is the websites except handover source website and switching targeted sites, and described streamed data bag repeater station is gateway.
Described shunting targeted sites 112 comprises:
Shunting request reception unit 1121, consults to initiate for receiving shunting the request message that website 111 sends;
Shunting condition computing unit 1122, for according to the load of self, surplus resources, calculates the requirement that whether can meet the service transmission rate that described request message comprises;
Reply transmitting element 1123, for if, send and reply success message to shunting negotiation initiation website 111, notifying described shunting to consult to initiate website 111 transmission packets divides flow forwarding Indication message to streamed data bag repeater station, the business data packet of subscriber equipment is diverted to described shunting targeted sites 112 by described streamed data bag repeater station according to described Indication message, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites 112 wraps in described shunting targeted sites 112.
Further, described shunting targeted sites 112 also comprises:
Unit is set up in carrying configuration, for setting up the carrying configuration of all business of UE.
The switched system that the embodiment of the present invention provides can be applied in the embodiment of the method for aforementioned correspondence, and details, referring to the description of above-described embodiment, do not repeat them here.
In addition, it should be noted that, the gateway in the embodiment of the present invention can be gateway, can be also packet data gateway, does not limit in the present embodiment.
It should be noted that in said system embodiment, included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional unit also, just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition, one of ordinary skill in the art will appreciate that all or part of step realizing in the various embodiments described above method is to come the hardware that instruction is relevant to complete by program, corresponding program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a changing method, is characterized in that, described method comprises:
At user equipment (UE), from Source Site, switch to the process of targeted sites,
Shunting is consulted to initiate website and is wrapped in the service transmission rate of Source Site and the expection service transmission rate of targeted sites according to the business datum of described subscriber equipment, and calculating need to be diverted to the service transmission rate of the business data packet of shunting targeted sites;
Shunting is consulted to initiate website and is sent a request message to shunting targeted sites, notify described shunting targeted sites according to the load of self, surplus resources, calculate the requirement whether can meet the service transmission rate that described request message comprises, if met, described shunting consults to initiate the success message of replying that website receives described shunting targeted sites transmission;
Described shunting is consulted to initiate website and is received replying after success message of shunting targeted sites transmission, sending packet divides flow forwarding Indication message to streamed data bag repeater station, notify described streamed data bag repeater station, according to described Indication message, the business data packet of described subscriber equipment is diverted to described shunting targeted sites, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
2. the method for claim 1, is characterized in that, when Source Site is source macro station, when targeted sites is target macro station, it is described source macro station that described shunting is consulted to initiate website, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is target macro station; Or it is target macro station that described shunting is consulted to initiate website, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is gateway; When Source Site is micro-station, source, when targeted sites is the micro-station of target, it is micro-station, source that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is macro station; Or it is the micro-station of target that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is gateway; When Wei Zhanshi source, source wifi website, when targeted sites is target wifi website, it is user equipment (UE) that described shunting is consulted to initiate website, and described shunting targeted sites is 2G/3G/LTE cellular network website, and described streamed data bag repeater station is gateway.
3. the method for claim 1, it is characterized in that, controlling under carrying separated network framework, it is controller that described shunting is consulted to initiate website, described shunting targeted sites is the website except handover source website and switching targeted sites, and described streamed data bag repeater station is gateway.
4. a changing method, is characterized in that, described method comprises:
At user equipment (UE), from Source Site, switch to the process of targeted sites,
Shunting targeted sites receives shunting and consults to initiate the request message that website sends;
Shunting targeted sites is according to the load of self, surplus resources, calculates the requirement whether can meet the service transmission rate that described request message comprises;
If, shunt targeted sites transmission and reply success message to shunting negotiation initiation website, notifying described shunting to consult to initiate website transmission packet divides flow forwarding Indication message to streamed data bag repeater station, the business data packet of described UE is diverted to described shunting targeted sites by described streamed data bag repeater station according to described Indication message, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
5. the method for claim 1, it is characterized in that, in described shunting targeted sites, send and reply success message to shunting negotiation initiation website, notifying described shunting to consult to initiate website transmission packet divides flow forwarding Indication message to streamed data bag repeater station, before the business data packet of described UE being diverted to described shunting targeted sites by described streamed data bag repeater station according to described Indication message, also comprise:
Shunting targeted sites is set up the carrying configuration of all business of UE.
6. shunting is consulted to initiate a website, it is characterized in that, described shunting is consulted to initiate website and comprised:
Shunting rate calculations unit, for wrap in the service transmission rate of Source Site and the expection service transmission rate of targeted sites according to the business datum of user equipment (UE), calculating need to be diverted to the service transmission rate of the business data packet of shunting targeted sites;
Shunting request transmitting unit, for sending a request message to shunting targeted sites, notify described shunting targeted sites according to the load of self, surplus resources, calculate the requirement whether can meet the service transmission rate that described request message comprises, if met, receive the success message of replying of described shunting targeted sites transmission;
Shunting indication transmitting element, for receiving replying after success message that described shunting targeted sites sends, sending packet divides flow forwarding Indication message to streamed data bag repeater station, notify described streamed data bag repeater station, according to described Indication message, the business data packet of described UE is diverted to described shunting targeted sites, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
7. shunting as claimed in claim 6 is consulted to initiate website, it is characterized in that, when Source Site is source macro station, when targeted sites is target macro station, it is described source macro station that described shunting is consulted to initiate website, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is target macro station; Or it is target macro station that described shunting is consulted to initiate website, and described shunting targeted sites is micro-station, and described streamed data bag repeater station is gateway; When Source Site is micro-station, source, when targeted sites is the micro-station of target, it is micro-station, source that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is macro station; Or it is the micro-station of target that described shunting is consulted to initiate website, and described shunting targeted sites is macro station, and described streamed data bag repeater station is gateway; When Wei Zhanshi source, source wifi website, when targeted sites is target wifi website, it is user equipment (UE) that described shunting is consulted to initiate website, and described shunting targeted sites is 2G/3G/LTE cellular network website, and described streamed data bag repeater station is gateway.
8. shunting as claimed in claim 6 consults to initiate website, it is characterized in that, controlling under carrying separated network framework, it is controller that described shunting is consulted to initiate website, described shunting targeted sites is the website except handover source website and switching targeted sites, and described streamed data bag repeater station is gateway.
9. a shunting targeted sites, is characterized in that, described shunting targeted sites comprises:
Shunting request reception unit, consults to initiate for receiving shunting the request message that website sends;
Shunting condition computing unit, for according to the load of self, surplus resources, calculates the requirement that whether can meet the service transmission rate that described request message comprises;
Reply transmitting element, for if, send and reply success message to shunting negotiation initiation website, notifying described shunting to consult to initiate website transmission packet divides flow forwarding Indication message to streamed data bag repeater station, the business data packet of subscriber equipment is diverted to described shunting targeted sites by described streamed data bag repeater station according to described Indication message, in described Indication message, carry the service transmission rate that business datum that indication branches to described shunting targeted sites wraps in described shunting targeted sites.
10. shunting targeted sites as claimed in claim 9, is characterized in that, described shunting targeted sites also comprises:
Unit is set up in carrying configuration, for setting up the carrying configuration of all business of UE.
11. 1 kinds of switched systems, is characterized in that, described system comprises streamed data bag repeater station, also comprise that the shunting as described in claim 6 to 8 any one consults to initiate website and the shunting targeted sites as described in claim 9 to 10.
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