CN102469543B - Acceptance controlling method, Apparatus and system - Google Patents
Acceptance controlling method, Apparatus and system Download PDFInfo
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- CN102469543B CN102469543B CN201010534694.9A CN201010534694A CN102469543B CN 102469543 B CN102469543 B CN 102469543B CN 201010534694 A CN201010534694 A CN 201010534694A CN 102469543 B CN102469543 B CN 102469543B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
- H04W36/0044—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of quality context information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W36/10—Reselecting an access point controller
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Abstract
The invention discloses a kind of acceptance controlling method, Apparatus and system, the method comprises: target network side receives the handover request signaling that source network side sends, and wherein demand signalling comprises the attribute information of terminal and the QoS parameter of RAB; Target network side carries out call access control according to attribute information and QoS parameter.By the present invention, improve the switching capability of network and the stability of network.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of acceptance controlling method, Apparatus and system.
Background technology
Interpersonal communication (Human to Human, referred to as H2H), by communicating to the operation of equipment, existing wireless communications technology is got up based on the Communication Development of H2H, in H2H communication, people realize communication by the subscriber equipment (User Equipment, referred to as UE) under H2H equipment and ordinary meaning.And Machine To Machine (Machine toMachine, referred to as M2M) sense stricto definition is the communication of machine to machine, sensu lato definition with machine terminal intelligent interaction be core, the application of networking and service.It is based on intelligent machine terminal, take communication as access means, is the informatization resolve scheme that client provides, for meeting the information system requirement of client to aspects such as monitoring, command scheduling, data acquisition and measurements.
The development of wireless technology is the key factor of M2M market development, it breaches space-time restriction and the region obstacle of conventional communication mode, make enterprise and the public break away from cable constraint, allow client more effectively control cost, reduce mounting cost and easy to use.In addition, growing demand driving M2M and is constantly advanced, constantly increase paradoxically with information processing capability and the network bandwidth, the means of acquisition of information lag far behind, and M2M well meets this demand of people, can Real-Time Monitoring external environment condition by its people, to realize on a large scale, the information gathering of automation.Therefore, M2M can be widely used in sector application, domestic. applications, individual application etc.Sector application is as traffic monitoring, warning system, rescue at sea, automatic vending machine, driving paying etc.Domestic. applications is as automatic data logging, temperature control etc.Individual application is as life detection, remote diagnostics etc.
The communication object of M2M is Machine To Machine, Human-to-Machine.Data communication between one or more machine is defined as MTC (Machine Type Communication, machine type communication), in this case lessly needs human-computer interaction.Participate in the machine of MTC, be defined as MTC device (MTC device, referred to as MD).MTC device is the terminal of MTC user, communicates with MTC device, MTC server by PLMN network.
After introducing M2M application, can be carried out some according to its feature to existing system and optimize, to meet M2M application demand, and the normal user equipments in existing system not had an impact.Some distinguishing features of M2M application have: MTC device quantity is a lot, and the data volume of each transmission is little, and transmission intercal is large, and position is relatively fixing.In view of the One's name is legion of MTC device, with the quantity of common UE and H2H equipment not at an order of magnitude, the extensive use of MTC device probably makes network be in overload, such as when certain community suddenly power outage occurs, when power returns, numerous MTC device may attempt access network simultaneously, and this will cause network to be in overload.The overload caused is introduced in order to tackle MTC device, network side needs the ability promoting premature beats, in existing protocol, the ability possessing new process overload is required for core network element, as LTE (Long TermEvolution, Long Term Evolution) MME (the Mobility Management Entity of system, Mobility Management Entity), need APN (the Access point name reported according to MTC device, referred to as APN) traffic carrying capacity (maximum activation carrying number, maximum bearer rate etc.) implement based on the premature beats of APN, registration reject (AttachReject) can be sent to UE, location area updating is refused.The base station of network side also needs to possess the ability implementing different access control according to the identity (whether being MTC device) accessed terminal, as base station connects by RRC the access that refusal (RRC Connection Reject) signaling limits some MTC device.
In correlation technique, because the real time load of different base stations and different MME is different, the call access control (Admission Control) that the MTC device of different base station to access is taked also may be different.For the terminal of access network, when it switches, grid side needs to implement different Access Control Policys, causes the switching capability that may cause network over loading when multiple types of terminals switches in correlation technique and reduce network.
Summary of the invention
Main purpose of the present invention is to provide a kind of switching handling method, Apparatus and system, at least to solve the problem of the switching capability that may to cause network over loading when multiple types of terminals switches in above-mentioned correlation technique and reduce network.
According to an aspect of the present invention, a kind of acceptance controlling method is provided.
Acceptance controlling method according to the present invention comprises: target network side receives the handover request signaling that source network side sends, and wherein demand signalling comprises the attribute information of terminal and the QoS parameter of RAB; Target network side carries out call access control according to attribute information and QoS parameter.
Further, attribute information comprises following one or a combination set of: the grouping information of the type information of terminal, the type of service of terminal, terminal, the precedence information of terminal, terminal set up the precedence information of business, terminal is set up business model information, the access grade information of terminal, the information of terminal roaming.
Further, target network side is carried out call access control according to attribute information and QoS parameter and is comprised: target network side judges whether to allow terminal corresponding to attribute information to switch according to following one or a combination set of: core net is to the access control demand of target network side or premature beats demand, the load condition of target network side, the demand of operation and maintenance server; If judged result is yes, and meets the demand of QoS parameter, then target network side allows terminal to switch, otherwise refusal terminal switches.
Further, after target network side permission terminal switches, also comprise: objective network side direction source network side sends Handover Request Acknowledge signaling; After target network side refusal terminal switches, also comprise: objective network side direction source network side sends to switch and prepares failed signaling.
Further, switch the reason preparing to carry handoff failure in failed signaling, reason comprises one of following:
Do not allow the reason that the terminal of type information accesses, do not allow the reason that the terminal of grouping information accesses, do not allow the reason that the terminal of precedence information accesses, do not allow the reason that the terminal of the precedence information of business of setting up accesses, do not allow the reason of the terminal access of the business model information set up, do not allow the reason that the terminal of access grade information accesses.
Further, in broadband CDMA system WCDMA, handover request signaling is re-positioning request signaling, and switching preparation failed signaling is that reorientation prepares failed signaling.
Further, the handover request signaling that target network side reception source network side sends comprises: target network side receives the handover request signaling of source network side transmission by direct interface; Or target network side receives the handover request signaling of source network side transmission by core net.
Further, in Long Term Evolution LTE system, source network side is source base station, and target network side is target BS; In broadband CDMA system, source network side is source radio network controller, and target network side is target radio network controller; Terminal comprises: equipment for machine type communication and/or person to person's communication equipment.
To achieve these goals, according to a further aspect in the invention, a kind of target network side is provided.
Target network side according to the present invention comprises: receiver module, and for receiving the handover request signaling that source network side sends, wherein demand signalling includes the attribute information of terminal and the QoS parameter of RAB; Control module, for carrying out call access control according to attribute information and QoS parameter.
Further, attribute information comprises following one or a combination set of: the grouping information of the type information of terminal, the type of service of terminal, terminal, the precedence information of terminal, terminal set up the precedence information of business, terminal is set up business model information, the access grade information of terminal, the information of terminal roaming.
Further, control module comprises: judge submodule, for allowing terminal corresponding to attribute information to switch according to following one or a combination set of judging whether: core net is to the access control demand of target network side or premature beats demand, the load condition of target network side, the demand of operation and maintenance server; First determines submodule, for judging that the judged result of submodule is yes, and when meeting the demand of QoS parameter, allows terminal to switch; Second determines submodule, for when judging that the judged result of submodule is no, determines that refusal terminal switches.
Further, control module also comprises: first sends submodule, for sending Handover Request Acknowledge signaling to source network side; Second sends submodule, prepares failed signaling for sending to source network side to switch.
In order to realize the present invention, according to an aspect of the present invention, a kind of source network side is provided.
Source network side according to the present invention comprises: sending module, and for sending handover request signaling to target network side, wherein demand signalling includes the attribute information of terminal.
In order to realize the present invention, according to an aspect of the present invention, a kind of switching processing system is provided.
Switching processing system according to the present invention comprises: above-mentioned source network side and above-mentioned target network side.
By the present invention, adopt target network side to receive the handover request information carrying the attribute information of terminal and the QoS parameter of RAB of source network side transmission, then carry out call access control according to attribute information and QoS parameter.Solve the problem that may cause network over loading when multiple types of terminals switches in correlation technique, improve the switching capability of network and the stability of network.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the network topology schematic diagram of the LTE system according to correlation technique;
Fig. 2 is the network topology schematic diagram of the WCDMA system according to correlation technique;
Fig. 3 is the flow chart of the acceptance controlling method according to the embodiment of the present invention;
Fig. 4 is the flow chart one of switching handling method according to the preferred embodiment of the invention;
Fig. 5 is the flowchart 2 of switching handling method according to the preferred embodiment of the invention;
Fig. 6 is the flow chart 3 of switching handling method according to the preferred embodiment of the invention;
Fig. 7 is the structured flowchart of the target network side according to the embodiment of the present invention;
Fig. 8 is according to the preferred structured flowchart of the target network side of the embodiment of the present invention;
Fig. 9 is the structured flowchart of the source network side according to the embodiment of the present invention; And
Figure 10 is the structured flowchart of the acceptance control system according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Present embodiments provide a kind of acceptance controlling method, Fig. 3 is the flow chart of the acceptance controlling method according to the embodiment of the present invention, and as shown in Figure 3, the method comprises:
Step S302: target network side receives the handover request signaling that source network side sends, and wherein demand signalling includes the attribute information of terminal and the QoS parameter (Quality of Service, referred to as QoS) of RAB;
Step S304: target network side carries out call access control according to the QoS parameter of the attribute information of terminal and RAB.
By above-mentioned steps, target network side receives the handover request signaling of the attribute information carrying terminal from source network side joint, then implements call access control according to QoS and attribute information.Overcome the problem effectively can not implementing handover decisions when multiple types of terminals switches in correlation technique to different types of terminals, meet the load demand for control of different access network elements, improve the performance of network.
Preferably, existing QoS can be expanded, make it comprise the attribute information of terminal.Now target network side implements call access control according to QoS, considers the attribute information of the terminal in QoS in call access control.
Preferably, attribute information comprises following one or a combination set of: the grouping information of the type information of terminal, the type of service of terminal, terminal, the precedence information of terminal, terminal set up the precedence information of business, terminal is set up business model information, the access grade information of terminal, the information of terminal roaming.By the preferred embodiment, the above-mentioned attribute information according to terminal carries out call access control, improves the accuracy of switching.
Preferably, target network side is carried out call access control according to attribute information and QoS parameter and is comprised: target network side judges whether to allow terminal corresponding to attribute information to switch according to following one or a combination set of: core net is to the access control demand of target network side or premature beats demand, the load condition of target network side, the demand of operation and maintenance server; If judged result is yes, and target network side meets QoS parameter demand, then target network side allows terminal to switch, otherwise refusal terminal switches.By the preferred embodiment, target network side is determined to switch terminal or refuse to switch according to above-mentioned three combined factors and QoS parameter, improves the accuracy and efficiency of target network side call access control.
Preferably, after target network side permission terminal switches, also comprise: source network side described in objective network side direction sends Handover Request Acknowledge signaling; After target network side refusal terminal switches, also comprise: objective network side direction source network side sends to switch and prepares failed signaling.By the preferred embodiment, use existing signaling to transmit information, reduce R&D costs.
Preferably, switch the reason preparing to carry handoff failure in failed signaling, this reason comprises one of following: do not allow the reason that the terminal of the type information accesses, do not allow the reason that the terminal of this grouping information accesses, do not allow the reason that the terminal of this precedence information accesses, the reason of the terminal access not allowing this to set up service priority information, the reason not allowing the terminal of the business model information of this foundation to access, does not allow the reason that the terminal of this access grade information accesses.By the preferred embodiment, switching can prepare, in the switching flow after failed reason in failed signaling is used for, to improve the efficiency of terminal switch by source network side.
Preferably, in broadband CDMA system (WCDMA), handover request signaling is re-positioning request signaling, and switching preparation failed signaling is that reorientation prepares failed signaling.By the preferred embodiment, in a wcdma system, adopt existing signaling information, reduce R&D costs.
Preferably, the handover request signaling that target network side reception source network side sends comprises: target network side receives the handover request signaling of source network side transmission by direct interface; Or target network side receives the handover request signaling of source network side transmission by core net.By the preferred embodiment, target network side directly or by core net can receive the handover request signaling that source network side sends, and improves the flexibility sending handover request signaling.
Preferably, in Long Term Evolution (LTE) system, source network side is source base station, and target network side is target BS; In Wideband Code Division Multiple Access (WCDMA) (WCDMA) system, source network side is source radio network controller (RNC), and target network side is Target RNC.By the preferred embodiment, switch in LTE system between base station and carry out, in a wcdma system, switch and carry out between rncs.
Preferably, terminal comprises equipment for machine type communication (MTC device) and/or person to person's communication equipment (H2H equipment).
It should be noted that, target network side implements call access control according to QoS, can meet the resource requirement of the RAB that terminal is set up in order to ensure target network side.Target network side is implemented call access control according to the attribute information of terminal and is referred to that target network side is in the decision-making whether allowing described terminal to access considering to make after core net is to the demand of its access control demand or premature beats demand, self load condition and/or operation and maintenance server.If target network side is successful according to the attribute information enforcement call access control of terminal, namely refer to that target network side allows the terminal of this attribute to access, target network side implements call access control according to QoS simultaneously is also successful, then send Handover Request Acknowledge signaling to source network side; If it is failed that the attribute information of target network side foundation terminal implements call access control, then sends to source network side and switch preparation failed signaling.
Embodiment one
The present embodiment is based on LTE system, and the network topology of LTE system as shown in Figure 1, exists S1 interface between base station and core network element MME, there is X2 interface between adjacent base station.
In the present embodiment, base station 1 is source base station and source network side, and base station 2 is target BS and target network side.MTC device is in connection status in jurisdiction district, base station 1, this MTC device is the MTC device of low priority or this equipment access network is low priority access, and low priority or low priority access is herein that network side and MTC device are made an appointment or refers to that MTC device is set in advance as low priority.Low priority can according to the Type division of terminal herein, the terminal that MTC device is low priority as arranged, common H2H equipment is the terminal of normal priority, more eurypalynous terminal can be introduced later, the priority of terminal is divided into thinner scene, such as divides the terminal more than two priority; Or according to the Business Nature determination priority of MTC device, for ammeter Terminal Type, the business initiated is mainly used in the scale value of indication electric meter, such MTC device indicates the instruction of low priority to network side when access network, and other are as monitoring or the MTC device of alarm, when access network to the instruction of network side instruction normal priority.
MTC device needs to measure adjacent community in base station 1, to realize mobile.Handover decisions, after the measurement report that the signal quality receiving the neighbor cell that MTC device reports is higher than predetermined threshold, is made in base station 1, and the Target cell of switching is positioned at base station 2, the flow process of switching as shown in Figure 4:
Step S401, source base station sends handover request (Handover Request) to target BS.
Herein, there is X2 interface between source base station and target BS.Service quality (QoS, the Quality of Service) parameter of RAB (E-RAB, E-UTRAN Radio Access Bearer) and the configuration information etc. in cell-of-origin of MTC device foundation is comprised in handover request.In order to realize the present invention, also comprise the information characterizing MTC device attribute in handover request, in the present embodiment, the information characterizing MTC device attribute adopts the priority of MTC device to represent, refers to mark or the sequence number of low priority herein.If represent the attribute of MTC device by sequence number, then the sequence number of this sequence number to be this MTC device of expression of making an appointment be low priority.
Step S402, after target BS receives handover request, attribute according to the qos parameter comprised in handover request and MTC device performs call access control (Admission Control), implementing call access control according to qos parameter is ensure have enough resources to use after MTC device accesses target BS, can meet the requirement of QoS after handover; It is ensure that different access network elements (referring to base station herein) can adopt different access strategies that attribute according to MTC device implements call access control.Different base stations may connect different core network elements (MME) on the one hand, different MME can send different access restricted informations to base station, the access restricted information sent to base station 2 as MME in the present embodiment does not allow the MTC device of low priority to access; The loads residing for base station different is on the other hand different, and different access strategies can be taked according to load in base station; In addition base station needs the demand of consistency operation and the maintenance server (Operation & Management, OAM) considering that it connects to implement call access control to terminal.In the present embodiment, although the load of Target cell (belonging to base station 2) is not high, this MTC device of enough Resource Guarantee is had to set up the qos parameter of E-RAB, but the MME that base station 2 connects does not allow the MTC device of low priority to access, therefore in the present embodiment, base station 2 does not allow the MTC device of low priority to access, call access control failure.
Step S403, target BS sends to switch to source base station and prepares unsuccessfully (Handover Preparation Failure), and this failed signaling also comprises the reason not allowing low priority MTC device to access.
Step S404, source base station receives to switch and prepares unsuccessfully, knows that target BS does not allow the MTC device of low priority to access, then avoid sending handover request signaling to this base station again.Because this MTC device needs mobile, source base station is selected to be under the jurisdiction of the community of base station 3 as Target cell from the measurement report that this MTC device reports, and now base station 3 becomes target BS.Source base station sends handover request to base station 3.The QoS parameter of RAB and the configuration information etc. in cell-of-origin of MTC device foundation is comprised in handover request.In order to realize the present invention, also comprise the information characterizing MTC device attribute in handover request, in the present embodiment, the information characterizing MTC device attribute adopts the priority of MTC device to represent, refers to mark or the sequence number of low priority herein.
Step S405, after target BS receives handover request, attribute according to the qos parameter comprised in handover request and MTC device performs access control, and it is have enough resources to use after ensureing MTC device access target BS that foundation qos parameter implements call access control, can meet the requirement of QoS; It is ensure that different access network elements can adopt different access strategies that attribute according to MTC device implements call access control.In the present embodiment, the MME that base station 3 connects allows the MTC device of all priority to access, and the load of base station 3 self is lower can allow new MTC device access.Therefore the call access control of the 3 pairs of handover request in base station is successful.
Step S406, base station 3 sends Handover Request Acknowledge (Handover Request Acknowledge) signaling to source base station, and this Handover Request Acknowledge signaling comprises the resource information that base station 3 is distributed for MTC device.
Step S407, after source base station receives Handover Request Acknowledge signaling, sends switching command to MTC device.
In existing LTE system, source base station connects reconfiguration message by RRC and carries mobile control information (mobilityControl Info) to MTC device transmission switching command.
It is synchronous that step S408, MTC obtain with Target cell, initiates Stochastic accessing in Target cell, and send switching to target BS and complete signaling (RRC connect reshuffled), so far, MTC device is switched to Target cell.
In the present embodiment, target BS knows the attribute information of the MTC device of access by handover request, can implement call access control accordingly, the switching again avoiding terminal switch to cause to inappropriate target network side or Connection Release.
In the present embodiment, the attribute of MTC device refers to the precedence information of MTC device, and the priority of MTC device can be divided into two-stage or multistage, as low priority and normal priority can be divided into, or low priority, normal priority and high priority etc.Different access network elements can take different Access Control Policys for the MTC device of different priorities.Whether the attribute of MTC device also can be other information characterizing terminal, as being MTC device (namely referring to the type information of terminal);
Or the grouping information of terminal, different MTC device belongs to different group Group, and each group has specific group mark or group sequence number;
Or terminal sets up the precedence information of business, refer to the priority tag of the built business of setting up one's own business of terminal, the priority sequence number of the business of being made an appointment by network side and subscriber equipment or the priority tag of business;
Or the business model information that terminal is set up, refers to the data communication model information of business, comprises one or more combination of following characteristics: data interaction periodicity, data interaction frequency, data volume size;
Or the access grade of terminal (Access Class) information, refers to the access grade mark of terminal, the access grade sequence number of being made an appointment by network side and subscriber equipment or access grade mark;
Or the information of terminal roaming, refer to whether terminal is the terminal roamed, or the public land mobile network mark that indicating terminal is signing, or the HPLMN of indicating terminal (Home Public Land Mobile Network, home public land mobile network) and/or EHPLMN (Equivalent Home PLMN, equivalent home public land mobile network).
Different access network elements can take different access strategies for the attribute of terminal, and target network side can implement call access control after obtaining the attribute information of terminal accordingly, avoids accessing inappropriate terminal.Different resource allocation policies can be taked accordingly simultaneously, such as the MTC device of low priority, target network side is that its pre-configured or reserved resource is just less, as long as can meet its minimum QoS demand, now can not seize the resource of other-end; For the MTC device of normal priority or high priority, target network side is that its pre-configured or reserved resource is just sufficient, the demand of its QoS can be met completely, as comprised Maximum Bit Rate (Maximum Bit Rate) in QoS, target network side is its reserved resource according to Maximum Bit Rate, and can seize the resource of other low priority terminals.
In the present embodiment, send hand off signaling between base station by X2 interface, if there is not X2 interface between base station, then transmit hand off signaling by core net between base station, described in the present embodiment, method is applicable equally.Comprise terminal attributive information by core net to the handover request signaling of target BS transmission, target network side implements call access control and Resourse Distribute accordingly.
Embodiment two
The present embodiment is based on WCDMA system, the network topology of WCDMA system as shown in Figure 2, radio network controller (Radio Network Controller, referred to as RNC) be connected with core network element respectively by lu interface, have l ur interface between RNC, between RNC and its administrative base station, have lub interface.
In the present embodiment, RNC1 is source RNC and source network side, and RNC2 is Target RNC and target network side.MTC device is in connection status in RNC1 jurisdiction district, business wireless access load-bearing (the Radio AccessBearer that this MTC device is set up, referred to as RAB) be normal priority, as the time tolerance according to business divides, for ammeter business, the time tolerance of its business is longer, then the business that the MTC device of ammeter class is set up is low priority; For watch-dog, its business is not time tolerance, needs to set up business reported data immediately, then the business that watch-dog is initiated is normal priority or high priority.In the present embodiment, normal priority is that network side and MTC device are predetermined in advance, and the business that this MTC device initiates to set up is normal priority; Or network side is the service priority that it distributes is normal priority.Represent that the parameter of service priority is ARP (the Allocation and Retention Priority in QoS although exist in existing protocol, distribute and keep priority), but in order to represent the difference between MTC device and H2H equipment, the mark of the normal priority needing the newly-increased MTC of expression to set up; Or the value of (i.e. protocol conventions) certain ARP that makes an appointment between network side and MTC device represents that the business that MTC device is set up is normal priority, now agreement needs setting ARP and MTC device to set up the mapping relations of business, as Priority cell in agreement regulation ARP, when its value is 1, expression is the business that MTC device is set up is normal priority.
MTC device needs to measure adjacent community in RNC1, to realize mobile.RNC1, after the measurement report that the signal quality receiving the neighbor cell that MTC device reports is higher than predetermined threshold, makes handover decisions, and the Target cell of switching is positioned at RNC2, the flow process of switching as shown in Figure 5:
Step S501, source network side direction target network side sends re-positioning request (Relocation Request), there is l ur interface between source RNC and Target RNC herein.Service quality (QoS, the Quality ofService) parameter of RAB and the configuration information etc. in cell-of-origin of MTC device foundation is comprised in re-positioning request.In order to realize the present invention, also comprise the information characterizing MTC device attribute in re-positioning request, in the present embodiment, the information characterizing MTC device attribute refers to that MTC sets up the mark of the normal priority of business.
Step S502, after target network side receives re-positioning request, attribute according to the qos parameter comprised in re-positioning request and MTC device performs call access control, implementing access control according to qos parameter is ensure that MTC device access objective network rear flank has enough resources to use, and can meet the requirement of QoS; It is ensure that different access network elements can adopt different access strategies that attribute according to MTC device implements call access control.In the present embodiment, the core network element that Target RNC connects allows the MTC device access of setting up normal priority business, and the load of Target RNC self is lower can allow new MTC device access.Therefore the call access control of Target RNC to re-positioning request is successful.Target network side also can take different resource allocation policies according to the attribute of MTC device, the business that MTC device is set up herein is normal priority, target network side can be its Resources allocation according to Maximum Bit Rate when Resources allocation, if when resource is inadequate, the resource of the MTC device of low priority can also be seized.
Step S503, objective network side direction source network side sends relocation response (Relocation Response) signaling, and it is the resource information that MTC device is distributed that this relocation response signaling comprises target network side.
Step S504, after source network side receives relocation response signaling, sends switching command to MTC device.
In existing WCDMA system, source network side sends switching command by RAB reconfiguration message to MTC device.
Step S505, it is synchronous that MTC device obtains with Target cell, and send switching to Target RNC and complete signaling (RAB has reshuffled signaling), so far, MTC device is switched to Target cell.
In the present embodiment, the attribute of MTC device refers to that MTC device sets up the precedence information of business, the priority that MTC device sets up business can be divided into two-stage or multistage, as low priority and normal priority can be divided into, or low priority, normal priority and high priority etc.The network element of different Access Networks can take different Access Control Policys for different business priority.Whether the attribute of MTC device also can be other information characterizing terminal, as being MTC device (namely referring to the type information of terminal);
Or the type of service of terminal, what refer to that terminal initiates is data service or signaling traffic; Because of network side paging initiate data service or signaling traffic; Or whether terminal initiation is time tolerable business; Or whether terminal initiates be the business (Small Data) of small data quantity;
Or the grouping information of terminal;
Or the business model information that terminal is set up, refers to the data communication model information of business, comprises one or more combination of following characteristics: data interaction periodicity, data interaction frequency, data volume size;
Or the access grade of terminal (Access Class) information;
Or the information of terminal roaming, refer to whether terminal is the terminal roamed, or the public land mobile network mark that indicating terminal is signing, or the HPLMN of indicating terminal identifies (Home Public Land Mobile Network, home public land mobile network) and/or EHPLMN mark (Equivalent Home PLMN, equivalent home public land mobile network).
Different access network elements can take different access strategies for the attribute of terminal, and target network side can implement call access control after obtaining the attribute information of terminal accordingly, avoids accessing inappropriate terminal.Different resource allocation policies can be taked accordingly simultaneously.
In the present embodiment, transmit hand off signaling by l ur interface between RNC, if there is not l ur interface between RNC, then transmit hand off signaling by core net between RNC, described in the present embodiment, method is applicable equally.
Embodiment three
The present embodiment is based on the network topology of LTE system, and the network topology of LTE system as shown in Figure 1, exists S1 interface between base station and core network element MME, there is X2 interface between adjacent base station.
In the present embodiment, base station 1 is source base station and source network side, and base station 2 is target BS and target network side.MTC device is in connection status in jurisdiction district, base station 1, this MTC device is the MTC device of roaming, at Subscriber Identity Module (the Universal Subscriber Identity Module of MTC device, referred to as USIM) in save home public land mobile network HPLMN network identity, or also preserve equivalent home public land mobile network EHPLMN and identify, the network of the current access of this MTC device (refers to the network belonging to jurisdiction district, base station 1, the PLMN mark of belonging network is broadcast in the system message of this community) neither HPLMN, neither EHPLMN, therefore this MTC device is roaming.MTC device needs to measure adjacent community in base station 1, to realize mobile.Base station 1 is after the measurement report of the signal quality receiving the neighbor cell that MTC device reports than the signal quality high predetermined offset of Serving cell, and make handover decisions, the Target cell of switching is positioned at base station 2, the flow process of switching as shown in Figure 6:
Step S601, source base station sends handover request (Handover Request) to target BS.
Herein, there is X2 interface between source base station and target BS.Service quality (QoS, the Quality of Service) parameter of RAB (E-RAB, E-UTRAN Radio Access Bearer) and the configuration information etc. in cell-of-origin of MTC device foundation is comprised in handover request.In order to realize the present invention, also comprise the information characterizing MTC device attribute in handover request, in the present embodiment, the information characterizing MTC device attribute adopts the mark of roaming to represent; Or also can increase cell newly and represent the HPLMN mark that this MTC device is signing; Or newly-increased cell represents the HPLMN mark that this MTC device is signing and EHPLMN mark.Source base station can obtain signing HPLMN and the EHPLMN mark of this MTC device from core net, or obtains from the information that MTC device reports.
Step S602, after target BS receives handover request, the attribute according to the qos parameter comprised in handover request and MTC device performs call access control, and it is have enough resources to use after ensureing MTC device access target BS that foundation qos parameter implements call access control; It is ensure that different access network elements can adopt different access strategies and take different resource allocation policies accordingly that attribute according to MTC device implements call access control.In the present embodiment, the MME that base station 2 connects, due to the restriction of load, does not allow the MTC device access roamed.Therefore base station 2 knows that to be switched MTC device is after the MTC of roaming, makes the handover decisions not allowing to switch.This time the call access control of handover request is failed.
Step S603, target BS sends to switch to source base station and prepares unsuccessfully (Handover Preparation Failure) signaling, and this failed signaling comprises the reason of the terminal access not allowing to roam.
After source base station receives and switches the failed signaling of preparation, need the community finding other as the candidate cell switched, then send handover request to other community own base station.
In the present embodiment, the attribute information of terminal adopts the mark of roaming to represent, also can be the type information of terminal, or the grouping information of terminal, or the precedence information of terminal, or terminal sets up the precedence information of business, or the business model information that terminal is set up, or the access grade information of terminal.If target network side does not allow corresponding terminal access, then prepare to comprise the reason not allowing the terminal of the type to access in failed signaling in switching, or comprise the reason not allowing the terminal of this group to access, or comprise the reason not allowing the terminal of predetermined priority to access, or comprise the reason not allowing the terminal of intended service priority to access, or comprise the reason not allowing the terminal of intended service model to access, or comprise the reason not allowing the terminal of predetermined access grade to access.
It should be noted that, the present embodiment take MTC device as object, and acceptance controlling method can be extended to common terminal and namely comprise H2H equipment.The present embodiment is for LTE, and the method also can expand to WCDMA system and GERAN system.
Present embodiments provide a kind of target network side, Fig. 7 is the structured flowchart of the target network side according to the embodiment of the present invention, and as shown in Figure 7, this switching target network side comprises: receiver module 72 and control module 74, be described in detail to said structure below:
Receiver module 72, for receiving the handover request signaling that source network side sends, wherein demand signalling includes the attribute information of terminal and the QoS parameter of RAB; Control module 74, is connected to receiver module 72, carries out hand-off process for the attribute information that receives according to receiver module and QoS parameter.
Preferably, attribute information comprises following one or a combination set of: the grouping information of the type information of terminal, the type of service of terminal, terminal, the precedence information of terminal, terminal set up the precedence information of business, terminal is set up business model information, the access grade information of terminal, the information of terminal roaming.
Fig. 8 is according to the preferred structured flowchart of the target network side of the embodiment of the present invention, as shown in Figure 8, control module comprises: judge that submodule 741, first determines that submodule 742, second determines that submodule 743, first sends submodule 744, second and sends submodule 745, be described in detail below to said structure:
Control module 74 comprises: judge submodule 741, for judging whether to allow terminal corresponding to this attribute information to switch according to following one or a combination set of: core net is to the access control demand of target network side or premature beats demand, the load condition of target network side, the demand of operation and maintenance server; First determines submodule 742, is connected to and judges submodule 741, for judging that the judged result of submodule 741 is yes first, and when meeting QoS parameter demand, determines to allow described terminal to switch; Second determines submodule 743, and first judges submodule 741, for when first judges that the judged result of submodule 741 is no, determines that refusal terminal switches.
Control module 74 comprises: first sends submodule 744, is connected to first and determines submodule 742, for when first determines that submodule is determined to allow terminal to switch, sends Handover Request Acknowledge signaling to source network side; Second sends submodule 745, is connected to second and determines submodule 743, for when second determines that submodule 743 determines that refusal switches, sends switching prepare failed signaling to source network side.
Fig. 9 is the structured flowchart of the source network side according to the embodiment of the present invention, and as shown in Figure 9, this source network side comprises sending module 92, is described in detail below to said structure.
Sending module 92, for sending handover request signaling to target network side, wherein demand signalling includes the attribute information of terminal.
Figure 10 is the structured flowchart of the acceptance control system according to the embodiment of the present invention, this system comprises: source network side 2 and target network side 4, as shown in Figure 9, the structure of target network side 4, as shown in Fig. 7 or 8, is described in detail to said structure source network side 2 structure below.
Pass through above preferred embodiment, provide a kind of acceptance controlling method, Apparatus and system, received the handover request signaling of the attribute information carrying terminal by target network side from source network side joint, then carry out call access control according to attribute information and quality of service information.Overcome the problem that may cause network over loading when terminal switches in correlation technique, reduce the switchable load of network, improve the stability of network.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. an acceptance controlling method, is characterized in that, comprising:
Target network side receives the handover request signaling that source network side sends, and wherein said demand signalling comprises the attribute information of terminal and the QoS parameter of RAB, and described attribute information comprises following one or a combination set of:
Business model information, the access grade information of described terminal, the information of described terminal roaming that the type information of terminal, the type of service of described terminal, the grouping information of described terminal, the precedence information of described terminal, described terminal are set up, wherein, the type of service of described terminal to comprise with Types Below one of at least: what terminal was initiated is data service or signaling traffic; The data service initiated because of network side paging or signaling traffic; Whether what terminal was initiated is time tolerable business; The business of whether what terminal was initiated be small data quantity;
Described target network side carries out call access control according to described attribute information and described QoS parameter.
2. method according to claim 1, is characterized in that, described target network side is carried out call access control according to described attribute information and described QoS parameter and comprised:
Described target network side judges whether to allow terminal corresponding to described attribute information to switch according to following one or a combination set of: core net is to the access control demand of described target network side or premature beats demand, the load condition of described target network side, the demand of operation and maintenance server;
If judged result is yes, and meets the demand of described QoS parameter, then described target network side is determined to allow described terminal to switch, otherwise, determine that refusing described terminal switches.
3. method according to claim 2, is characterized in that,
Determine to allow after described terminal switches, also to comprise: source network side described in described objective network side direction sends Handover Request Acknowledge signaling in described target network side;
After described target network side determines that refusing described terminal switches, also comprise: source network side described in described objective network side direction sends to switch and prepares failed signaling.
4. method according to claim 3, is characterized in that, describedly switches the reason preparing to carry handoff failure in failed signaling, and described reason comprises one of following:
Do not allow the reason that the terminal of described type information accesses, do not allow the reason that the terminal of described grouping information accesses, do not allow the reason that the terminal of described precedence information accesses, do not allow the described reason setting up the terminal access of the precedence information of business, the reason not allowing the terminal of the business model information of described foundation to access, does not allow the reason that the terminal of described access grade information accesses.
5. the method according to claim 1 or 3, is characterized in that, in broadband CDMA system WCDMA, described handover request signaling is re-positioning request signaling, and it is that reorientation prepares failed signaling that described switching prepares failed signaling.
6. method according to claim 1, is characterized in that, the handover request signaling that described target network side receives the transmission of source network side comprises: described target network side receives the handover request signaling of described source network side transmission by direct interface; Or described target network side receives the handover request signaling of described source network side transmission by core net.
7. the method according to any one of claim 1-4, is characterized in that,
In Long Term Evolution LTE system, described source network side is source base station, and described target network side is target BS;
In broadband CDMA system, described source network side is source radio network controller, and described target network side is target radio network controller;
Described terminal comprises: equipment for machine type communication and/or person to person's communication equipment.
8. a target network side, is characterized in that, comprising:
Receiver module, for receiving the handover request signaling that source network side sends, wherein said demand signalling includes the attribute information of terminal and the QoS parameter of RAB, and described attribute information comprises following one or a combination set of:
Business model information, the access grade information of described terminal, the information of described terminal roaming that the type information of terminal, the type of service of described terminal, the grouping information of described terminal, the precedence information of described terminal, described terminal are set up, wherein, the type of service of described terminal to comprise with Types Below one of at least: what terminal was initiated is data service or signaling traffic; The data service initiated because of network side paging or signaling traffic; Whether what terminal was initiated is time tolerable business; The business of whether what terminal was initiated be small data quantity;
Control module, for carrying out call access control according to described attribute information and described QoS parameter.
9. target network side according to claim 8, is characterized in that, described control module comprises:
Judge submodule, for judging whether to allow terminal corresponding to described attribute information to switch according to following one or a combination set of: core net is to the access control demand of described target network side or premature beats demand, the load condition of described target network side, the demand of operation and maintenance server;
First determines submodule, for judging that the judged result of submodule is yes described, and when meeting the demand of described QoS parameter, determines to allow described terminal to switch;
Second determines submodule, for when the judged result of described judgement submodule is no, determines that refusing described terminal switches.
10. target network side according to claim 8, is characterized in that, described control module also comprises:
First sends submodule, for sending Handover Request Acknowledge signaling to described source network side;
Second sends submodule, prepares failed signaling for sending to switch to described source network side.
11. 1 kinds of source network sides, is characterized in that, comprising: sending module, and for sending handover request signaling to target network side, wherein said demand signalling includes the attribute information of terminal, and described attribute information comprises following one or a combination set of:
Business model information, the access grade information of described terminal, the information of described terminal roaming that the type information of terminal, the type of service of described terminal, the grouping information of described terminal, the precedence information of described terminal, described terminal are set up, wherein, the type of service of described terminal to comprise with Types Below one of at least: what terminal was initiated is data service or signaling traffic; The data service initiated because of network side paging or signaling traffic; Whether what terminal was initiated is time tolerable business; The business of whether what terminal was initiated be small data quantity.
12. 1 kinds of switching processing systems, is characterized in that, comprising: source network side as claimed in claim 11 and the target network side according to any one of claim 8 to 10.
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| CN201010534694.9A CN102469543B (en) | 2010-11-05 | 2010-11-05 | Acceptance controlling method, Apparatus and system |
| PCT/CN2011/078498 WO2012058966A1 (en) | 2010-11-05 | 2011-08-16 | Admission control method, target network, source network, and handover processing system |
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| WO2014032225A1 (en) * | 2012-08-27 | 2014-03-06 | 华为技术有限公司 | Quality of service control method, device and system |
| CN103686890B (en) * | 2012-09-07 | 2016-12-28 | 中兴通讯股份有限公司 | The method and system of wireless local network wireless terminal roaming switching |
| JP6204693B2 (en) * | 2013-05-09 | 2017-09-27 | 株式会社Ｎｔｔドコモ | Wireless base station and wireless communication method |
| CN104936164B (en) * | 2014-03-17 | 2019-01-25 | 电信科学技术研究院 | It indicates D2D relevant information and determines that D2D sends the method and device of resource |
| CN105228186B (en) * | 2014-06-17 | 2019-04-23 | 中国移动通信集团公司 | A kind of method, base station and system carrying long-term evolving network small data user |
| CN105792273A (en) * | 2014-12-17 | 2016-07-20 | 中兴通讯股份有限公司 | Method, device and system for selecting cells |
| KR101983114B1 (en) * | 2014-12-17 | 2019-05-29 | 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) | Method and apparatus for mobility management |
| CN107454644A (en) * | 2016-05-31 | 2017-12-08 | 中兴通讯股份有限公司 | Mobile switch method and mobile handoff device |
| WO2019041095A1 (en) * | 2017-08-28 | 2019-03-07 | 北京小米移动软件有限公司 | Method, apparatus, and system for base station handover |
| CN114339872B (en) * | 2017-09-19 | 2024-03-01 | 北京小米移动软件有限公司 | Method and device for identifying unmanned aerial vehicle, mobile management entity and base station |
| CN110913439A (en) * | 2018-09-17 | 2020-03-24 | 华为技术有限公司 | Network element selection method and device |
| WO2020073196A1 (en) * | 2018-10-09 | 2020-04-16 | Lenovo (Beijing) Limited | Handover requests with network information |
| CN114208290B (en) * | 2019-08-09 | 2024-03-19 | 上海诺基亚贝尔股份有限公司 | Handover in an integrated network |
| WO2021028617A1 (en) * | 2019-08-14 | 2021-02-18 | Nokia Solutions And Networks Oy | Preparation of multiple target cells for a handover in a wireless communication network |
| CN112243280B (en) * | 2020-10-20 | 2023-05-09 | Oppo广东移动通信有限公司 | Service initiation method, device, terminal and storage medium |
| CN112543490B (en) * | 2020-11-24 | 2023-07-14 | 上海擎昆信息科技有限公司 | Method and device for admitting user equipment and method and device for switching user equipment |
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