CN101925146B - Method for realizing load balance of voice service, user terminal and base station - Google Patents
Method for realizing load balance of voice service, user terminal and base station Download PDFInfo
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Abstract
The embodiment of the invention provides a method for realizing load balance of a voice service, a user device and a base station. The method comprises the following steps: when a network abnormity happens, receiving an indication message retreating to a circuit domain; transmitting a measurement report containing wireless signals of the measured circuit domain to the base station, so that the base station triggers the switching from the grouping domain to the circuit domain based on the measurement report; receiving the switching instruction transmitted by the base station; and executing the switching process from the grouping domain to the circuit domain so as to access to the circuit domain network. By using the embodiment of the invention, when a network abnormity happens, the network load of the grouping domain can be shared into the circuit domain, thereby realizing load balance, ensuring normal supply of the service and enhancing the user experience.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of method, subscriber equipment and base station of realizing the speech payloads equilibrium.
Background technology
Speech business is the important source of profits of telecom operators, following LTE (Long Term Evolved, long evolving system) and SAE (System Architecture Evolution, System Architecture Evolution) deployment is trend of the times, has obtained extensive discussions and has entered normalization period based on the voice solution of LTE.SAE provides a kind of packet transmission networks relatively efficiently for the user, can be used for providing VoIP (Voice over Internet Protocol for the user, based on the Internet protocol transport voice) business, but need to dispose IMS (Internet Protocol Multimedia Subsystem IP, IP multimedia subsystem, IMS).
In LTE early stage commercial stage, a lot of mainstream carriers are very willing to dispose the bigger IMS of investment, in this case, in order to reuse 2G/3G CS (Circuit Switched Domain, circuit domain) realizes support to voice conversation, industry proposes a kind of GAN-Like (class general access network) framework and realizes that the CS voice are at the PS of evolution (Pocket Switched System, packet domain) goes up carrying, use GAN (Generic Access Network, general access network) handover mechanism, use PCC (Policyand Charging Control, strategy and the control of chargeing) to strengthen GAN control VoIP carrying simultaneously.Tradition MSC (Mobile Switch Center, mobile switching centre) access of support CS territory mode, do not support the access in PS territory, inserting owing to the access of PS territory and CS territory is two kinds of different access waies, if grouping be inserted is that MSC is used, come for the user provides professional a logic entity to be set between packet domain and MSC logically then, this entity is GANC (Generic Access Network Controler, general access network controller).The function class of GANC is similar to BSS (Base, RNS)/RNS (Radio Network Subsystem, RNS), its major function provides subscriber equipment (User Equipment, UE) and the signalling path between the MSC, UE is connected to GANC by the IP Access Network, and GANC is responsible for the data interaction of user's face and chain of command.GANC also includes the function of MGW (MediaGateway, media gateway), and conversion is based on speech coding and the IP-based speech coding of 2G CS.
The inventor is in realizing process of the present invention, find in the prior art, when user equipment (UE) was initiated under the GAN-like framework or received voice call service, often audio call carrying excessive because of load, that user's face stops up or other networks cause unusually was unsuccessful, influences user's impression.Further; when in the voice call of a UE activity Already in; also through reasons such as regular meeting are excessive because of the load of SAE/LTE packet domain network, user's face is congested, subscriber equipment shifts out the SAE/LTE network's coverage area or other networks are unusual, cause calling terminal, influence user's impression.
Summary of the invention
The embodiment of the invention provides a kind of method and network equipment of realizing the speech payloads equilibrium, can realize the load balancing of packet domain network and 2G/3G access network, the successful foundation of service call and reliably providing of speech business are provided, are conducive to improve user's business impression.
For achieving the above object, the embodiment of the invention provides a kind of method that realizes load balance of voice service, comprising: when the generation network is unusual, receive the Indication message that return back to circuit domain;
Send the measurement report of the described circuit domain wireless signal that comprises measurement to the base station, so that described base station is based on the switching of described measurement report triggering from packet domain to described circuit domain;
Receive the switching command that described base station sends;
The handoff procedure of execution from described packet domain to described circuit domain is to insert described circuit-domain network.
In addition, the embodiment of the invention also provides a kind of method that realizes load balance of voice service, comprising:
When the generation network is unusual, send it back the Indication message that falls back on circuit domain to subscriber equipment;
Receive the measurement report that comprises the wireless signal of measuring described circuit domain that described subscriber equipment sends;
Measurement report based on described subscriber equipment sends triggers the switching from packet field network to described circuit-domain network;
Transmission handovers request to Mobility Management Entity;
The switching indication that the receiving mobility management entity sends;
Send switching command to described subscriber equipment, so that described subscriber equipment is carried out the handoff procedure from packet field network to described circuit-domain network, insert objective circuit territory network.
In addition, the embodiment of the invention also provides a kind of user terminal, comprising:
First receiving element is used for receiving the Indication message that return back to circuit domain when network is unusual;
Measuring unit is for the wireless signal of measuring described circuit domain;
First transmitting element is used for the measurement report that transmission comprises the described circuit domain wireless signal of described measuring unit measurement, so that the base station is based on the switching of described measurement report triggering from packet domain to described circuit domain;
Second receiving element is used for receiving the switching command that described base station sends;
Performance element is used for carrying out the handoff procedure from packet domain to described circuit domain, is linked into described circuit-domain network.
In addition, the embodiment of the invention also provides a kind of base station, comprising:
Second transmitting element is used for sending it back the Indication message that falls back on circuit domain to subscriber equipment when knowing that network is unusual;
The 3rd receiving element be used for to receive the measurement report of the wireless signal in the measuring circuit territory that subscriber equipment sends;
Trigger element is used for the measurement report based on described subscriber equipment transmission, triggers the switching from packet field network to circuit-domain network;
The 3rd transmitting element is used for transmission and handovers request to Mobility Management Entity;
The 4th receiving element is used for the switching indication that the receiving mobility management entity sends;
The 4th transmitting element is used for sending switching command to subscriber equipment, so that described subscriber equipment is carried out the handoff procedure from the packet field network to the circuit-domain network, inserts objective circuit territory network.
In embodiments of the present invention, when network generation unusual condition, subscriber equipment receives the indication that return back to circuit domain, thereby subscriber equipment sends measurement report to the base station, makes the base station make the decision-making of switching, and subscriber equipment is switched to the circuit domain from present resident packet domain, thereby share the offered load of packet domain in circuit domain, realize load balancing, professional normally providing is provided, improve the user and experience.
Description of drawings
Fig. 1 is that the embodiment of the invention provides a kind of schematic diagram of realizing the method for load balance of voice service;
Fig. 2 is the schematic diagram that the another kind that provides of the embodiment of the invention is realized the method for load balance of voice service;
Fig. 3 is the schematic diagram of the method for the realization load balance of voice service that provides of the embodiment of the invention one;
Fig. 4 is the schematic diagram of the method for the realization load balance of voice service that provides of the embodiment of the invention two;
Fig. 5 is the schematic diagram of the method for the realization load balance of voice service that provides of the embodiment of the invention three;
Fig. 6 is the schematic diagram of the method for the realization load balance of voice service that provides of the embodiment of the invention four;
Fig. 7 is the schematic diagram of the method for the realization load balance of voice service that provides of the embodiment of the invention five;
Fig. 8 is the schematic diagram of the method for the realization load balance of voice service that provides of the embodiment of the invention six;
Fig. 9 is the schematic diagram of the network equipment that provides of the embodiment of the invention seven;
Figure 10 is the schematic diagram of the network equipment that provides of the embodiment of the invention eight.
Embodiment
The embodiment of the invention provides a kind of method that realizes load balance of voice service, this method can since load is excessive, user's face is congested or other networks cause unusually audio call carrying set up unsuccessful or one existing voice call is excessive owing to the load of packet domain network, user's face is congested causes under the unusual situation of network, voice conversation is switched rollback from the packet domain to circuit domain network, carry out load balancing to realize load balancing, professional normally providing is provided.
As shown in Figure 1, the method for the realization load balance of voice service that provides of the embodiment of the invention comprises the steps:
Step S101: when network was unusual, subscriber equipment received the Indication message that return back to circuit domain;
Step S102: send the measurement report that comprises measuring circuit territory signal to the base station, so that the base station is based on the switching of described measurement report triggering from the packet domain to the circuit domain;
Step S103: receive the switching command that the base station sends;
Step S104: carry out the handoff procedure from the packet domain to the circuit domain, insert objective circuit territory network.
The executive agent of above-mentioned action can be subscriber equipment.
In addition, the embodiment of the invention also provides a kind of method that realizes load balance of voice service, as shown in Figure 2, comprises the steps:
Step S201: when knowing that network is unusual, send it back the Indication message that falls back on circuit domain to subscriber equipment;
Step S202: the measurement report of the wireless signal in the measuring circuit territory that the reception subscriber equipment sends;
Step S203: the measurement report based on described subscriber equipment sends, trigger the switching from packet domain to circuit domain;
Step S204: send and handover request to Mobility Management Entity;
Step S205: the switching indication that the receiving mobility management entity sends;
Step S206: send switching command to subscriber equipment, so that described subscriber equipment is carried out the handoff procedure from the packet domain to the circuit domain, insert objective circuit territory network.
The executive agent of above-mentioned action can be the base station.
Below in conjunction with accompanying drawing the present invention is described further:
Embodiment one
Present embodiment switches to example with the packet domain of voice conversation from LTE/SAE to the circuit domain of 2G/3G, and has considered the implementation of calling subscriber equipment one side in the present embodiment emphatically.
As shown in Figure 3, in the present embodiment, calling subscriber equipment 301 quarters in the packet domain overlay area of LTE, and calling subscriber equipment 301 is in the registration of the packet domain of LTE, and calling subscriber equipment 301 is by the registration of LTE packet domain to circuit domain.The method of the realization load balance of voice service that present embodiment provides comprises the steps:
Step S301: calling subscriber equipment 301 is initiated the circuit domain session, can pass through UP ' interface or Z1 interface and send Setup (call setup) message to GANC 304, GANC 304 is transmitted to VMSC (Visited Mobile-services Switching Centre, visited mobile switching center) 305 with this Setup message.
Step S302:VMSC 305 sends call initiation message (IAM) message to GMSC (Gateway Mobile Switching Center, GMSC (gateway mobile switching center)) 306, and GMSC 306 returns affirmation (ACM) message.
After step S303:VMSC 305 receives ACM message, trigger the appointment process of RAB (Radio AccessBearer, wireless access is net loaded).
Step S304: in the appointment process of RAB, set up failure because load-reason or other networks cause the carrying of voice special use unusually.
Step S305a:GANC 304 sends the Indication message that indication calling subscriber equipment 301 return back to circuit domain to calling subscriber equipment 301.
This Indication message is used to indicate the circuit domain of calling subscriber equipment 301 from the LTE/SAE packet domain to 2G/3G and switches, to share the network load of packet domain.
In addition, GANC 304 transmission Indication messages can pass through UP port or Z1 port among the step S305.
Step S305b: calling subscriber equipment 301 transmission business are set up request message to MME (MobilityManagement Entity, Mobility Management Entity) 303, this business is set up to carry in the request message to indicate and is shown that calling subscriber equipment 301 supports return back to the message of circuit domain, and triggers the rollback in MME 303 executive circuit territories.
Step S305c:MME 303 carries out calling subscriber equipment 301 to the message of circuit domain in 302 transmission indication base stations 302 to the base station, and wherein the message in this step can adopt the S1-AP request message.
Step S305d: measurement report is collected to calling subscriber equipment 301 in base station 302;
This measurement report is that calling subscriber equipment 301 is measured the measurement report that the network wireless signal obtains.
Step S306: based on the measurement report that calling subscriber equipment 301 sends, the decision-making that switches to circuit domain is made in base station 302, triggers the switching from the packet domain to the circuit domain.
Particularly, the decision-making of making switching based on measurement report base station 302 can be adopted following several mode:
1) calling subscriber equipment 301 is revised the measurement result of relevant packet domain in the measurement reports, the measurement result of relevant packet domain is revised as on the low side, thereby impel base station 302 to make the decision-making that switches to circuit domain;
2) signal in 301 measuring circuit territories of calling subscriber equipment, thus the measurement result of circuit domain only comprised in the measurement report, impel base station 302 to make the decision-making that switches to circuit domain;
3) though calling subscriber equipment 301 has been measured the signal of circuit domain and packet domain, a measurement result with circuit domain is placed in the measurement report and reports, thereby impels base station 302 to make the decision-making that switches to circuit domain;
4) calling subscriber equipment 301 adds indicating bit in measurement report, and the decision-making that switches to circuit domain is made in base station 302 according to this indicating bit.
Step S307: base station 302 sends and handovers request to MME 303;
Step S308:MME 303 generates packet domain to the handover request of circuit domain, and send to GANC304, if movable packet switch domain service is arranged, MME sends packet domain simultaneously and handovers request to SGSN (Serving GPRS Support Node, server GPRS Support Node) to circuit domain.
The switching that step S309:GANC 304 handles from the packet domain to the circuit domain, the transtation mission circuit territory handovers request to VMSC 305.
Step S310:GANC 304 gives VMSC 305 with the appointment response pass of RAB.
Step S311: handle MSC at circuit domain core net and call out simultaneously, if after the objective network circuit domain is ready to complete, GANC 304 receives switching command from VMSC 305.
Step S312:GANC 304 generates switching response message, and is transmitted to message to MME 303.
Step S313:MME 303 sends and switches indication to the base station 302;
Step S314: base station 302 sends switching command to calling subscriber equipment 301.
Step S315: calling subscriber equipment 301 is carried out from the packet domain to the circuit domain, is linked into the circuit domain in the target 2G/3G network system.
Pass through present embodiment, network occurring at Calling Side causes setting up under the situation of voice bearer failure unusually, measurement report is collected to subscriber equipment in the base station, handover decisions is made according to the measurement report of user equipment to report in the base station, subscriber equipment is return back in the circuit domain, thereby the speech business load sharing of packet domain in circuit domain, is realized load balancing, professional normally providing is provided.
Embodiment two
Present embodiment also is provided at a kind of method that realizes load balance of voice service, and this method has been considered the implementation of calling subscriber equipment one side emphatically.
As shown in Figure 4, the method for the realization load balance of voice service that provides of present embodiment comprises the steps:
Step S401-S404: this step is identical with step S301-S304 among the embodiment one, repeats no more here.
Step S405e: after base station 302 knows that the voice dedicated bearer is set up failure, direct and calling subscriber equipment 301 mutual rollbacks indication and metrical informations.
Step S405e can comprise following several specific implementation:
1) after base station 302 knew that failure is set up in carrying, subscriber call equipment 301 need return back to circuit domain, triggers the wireless signal in calling subscriber equipment 301 measuring circuit territories.
2) after base station 302 knows that failure is set up in carrying, subscriber call equipment 301 need return back to circuit domain, calling subscriber equipment 301 is revised the Radio Link situation that reports base station 302, measure the control message to calling subscriber equipment 301 thereby impel base station 302 to send, be used for the wireless signal in subscriber call equipment 301 measuring circuit territories.
Step S406-S407 is identical with step S306-S307 among the embodiment one, repeats no more here.
Pass through present embodiment, network occurring at Calling Side causes setting up under the situation of voice bearer failure unusually, measurement report is collected to subscriber equipment in the base station, handover decisions is made according to the measurement report of user equipment to report in the base station, subscriber equipment is return back in the circuit domain, thereby the speech business load sharing of packet domain in circuit domain, is realized load balancing, professional normally providing is provided.
Embodiment three
Present embodiment switches to example with the packet domain of voice conversation from LTE/SAE to the 2G/3G circuit domain, and has considered the implementation of called subscriber equipment one side in the present embodiment emphatically.
As shown in Figure 5, in the present embodiment, callee side subscriber equipment 501 quarters in the packet domain coverage of LTE, and callee side subscriber equipment 501 is at the LTE network registry, and registers to the CD domain core net by the LTE network.
The method of the realization load balance of voice service that present embodiment provides comprises the steps:
Step S501: after Calling Side sends IAM message to GMSC 506, GMSC 506 sends IAM message to VMSC505, VMSC 505 sends paging request message to GANC 504, and GANC 504 transmits paging request message, circuits for triggering territory paging to called subscriber equipment 501.
Wherein, above-mentioned GANC 504 can pass through UP ' interface or Z1 interface to called subscriber equipment 501 transmission beep-page messages.
Step S502: called subscriber equipment 501 sends the paging corresponding message to GANC 504, and GANC504 is transmitted to VMSC 505 with this page-response message.
Step S503:VMSC 505 sends call setup message to GANC 504, and GANC 504 transmits this call setup message to called subscriber equipment 501.
Wherein, can pass through UP ' interface or Z1 interface in the forwarding of GANC 504 transmits to called subscriber equipment 501.
Step S504: called subscriber equipment 501 sends to GANC 504 and calls out acknowledge message, and GANC 504 should call out acknowledge message and be transmitted to VMSC 505.
This calling acknowledge message can be carried IP address and the port information of the user equipment side that will set up carrying simultaneously.
After step S505:VMSC 505 receives and calls out acknowledge message, trigger the appointment process of RAB (Radio AccessBearer, wireless access is net loaded), VMSC 505 sends the RAB assignment messages to GANC 504.
Step S506: unusual because of reasons such as load is overweight or other networks, the voice dedicated bearer is set up failure.
Step S507a:GANC 504 sends the Indication message that indication called subscriber equipment 501 return back to circuit domain to called subscriber equipment 501.
This Indication message is used to indicate callee side subscriber equipment 501 and switches to the circuit domain of 2G/3G from the packet domain of LTE/SAE, to share the network load of packet domain.
Step S507b: called subscriber equipment 501 is set up request message to MME 503 transmission business, and this business is set up to carry in the request message to indicate and shown that called subscriber equipment 501 supports return back to the message of circuit domain, and triggers MME executive circuit territory rollback.
Step S507c:MME 503 carries out called subscriber equipment 501 to the Indication message of the rollback of circuit domain in 502 transmission indication base stations 502 to the base station; This Indication message can adopt the S1-AP request message.
Step S507d: measurement report is collected to called subscriber equipment 501 in base station 502;
Step S508: based on the measurement report of called subscriber equipment 501, the decision-making that switches to circuit domain is made in base station 502, triggers the switching from packet domain to circuit domain.
Particularly, the decision-making of making switching based on measurement report base station 502 can be adopted following several mode:
1) called subscriber equipment 501 is revised the measurement result of relevant packet domain in the measurement reports, the measurement result of relevant packet domain is revised as on the low side, thereby impel base station 502 to make the decision-making that switches to circuit domain;
2) signal in 501 measuring circuit territories of called subscriber equipment, thus the measurement result of circuit domain only comprised in the measurement report, impel base station 502 to make the decision-making that switches to circuit domain;
3) though called subscriber equipment 501 has been measured the signal of circuit domain and packet domain, a measurement result with circuit domain is placed in the measurement report and reports, thereby impels base station 502 to make the decision-making that switches to circuit domain;
4) called subscriber equipment 501 adds indicating bit in measurement report, and the decision-making that switches to circuit domain is made in base station 502 according to this indicating bit.
Step S509: base station 502 sends handover request message to MME 503;
Step S510:MME 503 generates packet domain to the handover request of circuit domain, and sends to GANC504, if by the packet switch domain service of activity, MME 503 sends packet domain simultaneously to the SGSN that handovers request to of circuit domain.
The switching that step S511:GANC 504 handles from the packet domain to the circuit domain, the transtation mission circuit territory handovers request to VMSC 505;
Step S512:GANC 504 assigns response pass to give VMSC 505 RAB;
Step S513:VMSC 505 replys the ACM message to GMSC 506, sets up VMSC 505 and is connected with repeat circuit between the GMSC 506;
Step S514: handle MSC at circuit domain core net and call out simultaneously, if after the objective network circuit domain is ready to complete, GANC 504 receives switching command from VMSC 505.
Step S515:GANC 504 generates switching response message, and is transmitted to message to MME 503.
Step S516:MME 503 sends and switches indication to the base station 502;
Step S517: base station 502 sends switching command to called subscriber equipment 501;
Step S518: the switching that called subscriber equipment 501 is carried out from the packet domain to the circuit domain is linked into the circuit domain in the target 2G/3G network system.
Pass through present embodiment, network occurring at callee side causes setting up under the situation of voice bearer failure unusually, the base station obtains measurement report from subscriber equipment, handover decisions is made according to this measurement report in the base station, subscriber equipment is return back in the circuit domain, thereby the speech business load sharing of packet domain in circuit domain, is realized load balancing, professional normally providing is provided.
Embodiment four
Present embodiment has been considered the implementation of called subscriber equipment one side emphatically, and as shown in Figure 6, the method for the realization load balance of voice service that present embodiment provides comprises the steps:
Step S601-S606 is identical with step S501-S506 among the embodiment three, repeats no more here;
Step S607e: after base station 502 knows that the voice dedicated bearer is set up failure, direct and called subscriber equipment 301 mutual rollbacks indication and metrical informations.
Step S607e can comprise following several specific implementation:
1) after base station 502 knew that failure is set up in carrying, notice called subscriber equipment 501 need return back to circuit domain, triggers the wireless signal in called subscriber equipment 501 measuring circuit territories.
2) after base station 502 knows that failure is set up in carrying, notice called subscriber equipment 501 need return back to circuit domain, called subscriber equipment 501 is revised the Radio Link situation that reports base station 502, measure control message to called subscriber equipment 501 thereby impel base station 302 to send, be used for notifying the wireless signal in called subscriber equipment 501 measuring circuit territories.
Step S608-S618 is identical with step S508-S518 among the embodiment three, repeats no more here.
Pass through present embodiment, network occurring at callee side causes setting up under the situation of voice bearer failure unusually, measurement report is collected to subscriber equipment in the base station, handover decisions is made according to the measurement report of user equipment to report in the base station, subscriber equipment is return back in the circuit domain, thereby the speech business load sharing of packet domain in circuit domain, is realized load balancing, professional normally providing is provided.
Embodiment five
Present embodiment provides a kind of method that realizes load balance of voice service, has considered emphatically in this method in the voice call process, and voice conversation return back to the situation of the circuit domain of 2G/3G from the packet domain of LTE/SAE.In the present embodiment, there is an existing voice call in subscriber equipment, because load is overweight or other networks are unusual, need carry out the rollback from the packet domain to the circuit domain.
As shown in Figure 7, the method that provides of present embodiment specifically comprises:
Step S701: subscriber equipment 701 is registered to circuit domain core net by the LTE network at the LTE network registry.
Step S702: when network takes place the overweight problem of load for example to take place when unusual, need the process of start-up circuit territory rollback.
Step S703a:GANC 704 sends the Indication message that indication subscriber equipment 701 return back to circuit domain to subscriber equipment 701.
This Indication message is used to indicate subscriber equipment 701 and switches to the circuit domain of 2G/3G from the packet domain of LTE/SAE, to share the network load of packet domain.
Step S703b: subscriber equipment 701 is set up request message to MME 703 transmission business, and this business is set up to carry in the request message to indicate and shown that subscriber equipment 701 supports return back to the message of circuit domain, and triggers MME executive circuit territory rollback.
Step S703c:MME 703 carries out subscriber equipment 701 to the Indication message of the rollback of circuit domain in 702 transmission indication base stations 702 to the base station; This Indication message can adopt the S1-AP request message.
Step S703d: measurement report is collected to subscriber equipment 701 in base station 702;
Step S704: based on the measurement report of subscriber equipment 701, the decision-making that switches to circuit domain is made in base station 702, triggers the switching from packet domain to circuit domain.
Step S705: base station 502 sends handover request message to MME 503;
Step S706:MME 703 generates packet domain to the handover request of circuit domain, and sends to GANC704, if by the packet switch domain service of activity, MME 703 sends packet domain simultaneously to the SGSN that handovers request to of circuit domain.
The switching that step S707:GANC 704 handles from the packet domain to the circuit domain, the transtation mission circuit territory handovers request to VMSC 705;
Step S708:GANC 704 assigns response pass to give VMSC 705 RAB;
Step S709: handle MSC at circuit domain core net and call out simultaneously, if after the objective network circuit domain is ready to complete, GANC 704 receives switching command from VMSC 705.
Step S710:GANC 704 generates switching response message, and is transmitted to message to MME 703.
Step S711:MME 703 sends and switches indication to the base station 702;
Step S712: base station 702 sends switching command to called subscriber equipment 701;
Step S713: the switching that subscriber equipment 701 is carried out from the packet domain to the circuit domain is linked into the circuit domain in the target 2G/3G network system.
Pass through present embodiment, occur under the unusual situation of network at existing voice, measurement report is collected to subscriber equipment in the base station, handover decisions is made according to the measurement report of user equipment to report in the base station, subscriber equipment is return back in the circuit domain, thereby the speech business load sharing of packet domain in circuit domain, is realized load balancing, professional normally providing is provided.
Embodiment six
Present embodiment has considered emphatically that in the voice call process voice conversation return back to the situation of the circuit domain of 2G/3G from the packet domain of LTE/SAE.
As shown in Figure 8, the method for the realization load balance of voice service that provides of present embodiment comprises the steps:
Step S801-S802 is identical with step S701-S702 among the embodiment five, repeats no more here;
Step S803e: after base station 702 knows that the voice dedicated bearer is set up failure, direct and subscriber equipment 301 mutual rollbacks indication and metrical informations.
Step S803e can comprise following several specific implementation:
1) after base station 702 knew that failure is set up in carrying, notifying user equipment 701 need return back to circuit domain, triggers the wireless signal in subscriber equipment 701 measuring circuit territories.
2) after base station 702 knows that failure is set up in carrying, notifying user equipment 701 need return back to circuit domain, subscriber equipment 701 is revised the Radio Link situation that reports base station 702, measure the control message to subscriber equipment 701 thereby impel base station 302 to send, be used for the wireless signal in notifying user equipment 701 measuring circuit territories.
Step S804-S813 is identical with step S704-S713 among the embodiment five, repeats no more here.
Pass through present embodiment, occur under the unusual situation of network at existing voice, measurement report is collected to subscriber equipment in the base station, handover decisions is made according to the measurement report of user equipment to report in the base station, subscriber equipment is return back in the circuit domain, thereby the speech business load sharing of packet domain in circuit domain, is realized load balancing, professional normally providing is provided.
Embodiment seven
Present embodiment is corresponding to provide a kind of network equipment, as shown in Figure 9, comprising:
First receiving element 901 is used for receiving the Indication message that return back to circuit domain when network is unusual;
Measuring unit 902 is for the wireless signal in measuring circuit territory;
First transmitting element 903 is used for the measurement report that transmission comprises the circuit domain wireless signal of described measuring unit measurement, so that the base station is based on the switching of described measurement report triggering from the packet domain to the circuit domain;
Second receiving element 904 is used for receiving the switching command that the base station sends;
The function of above-mentioned each unit and the course of work can repeat no more here with reference to the corresponding description among the method embodiment of front correspondence.
In practice, the network equipment in the present embodiment can be calling subscriber equipment or called subscriber equipment.
Need to prove, measuring unit 902 can also be used for measuring the wireless signal of packet domain in the present embodiment, be measuring unit 902 wireless signal of measuring circuit territory and packet domain simultaneously, but only contain the wireless signal of the circuit domain of measurement in the measurement report that this moment first, transmitting element 903 sent.
Pass through present embodiment, can occur under the unusual situation of network in speech business, the network equipment of base station from present embodiment collected measurement report, the base station makes a policy according to this measurement report, this network equipment is switched to circuit domain, thereby the speech business load sharing of packet domain in circuit domain, is realized load balancing, professional normally providing is provided.
Embodiment eight
Present embodiment provides a kind of network equipment, as shown in figure 10, comprising:
The 3rd receiving element 1002 be used for to receive the measurement report of the wireless signal in the measuring circuit territory that subscriber equipment sends;
The 3rd transmitting element 1004 is used for transmission and handovers request to Mobility Management Entity;
The 4th receiving element 1005 is used for the switching indication that the receiving mobility management entity sends;
The 4th transmitting element 1006 is used for sending switching command to subscriber equipment, so that described subscriber equipment is carried out the handoff procedure from the packet field network to the circuit-domain network, inserts objective circuit territory network.
The function of above-mentioned each unit and the course of work can repeat no more here with reference to the corresponding description among the method embodiment of front correspondence.
In practice, the network equipment in the present embodiment can be the base station.
Pass through present embodiment, occur under the unusual situation of network in speech business, the network equipment in the present embodiment is collected measurement report to subscriber equipment, and make handover decisions according to this measurement report, subscriber equipment is switched to circuit domain, thereby the speech business load sharing of packet domain in circuit domain, is realized load balancing, professional normally providing is provided.
Embodiment nine
Present embodiment provides a kind of method that realizes load balance of voice service, considers in the present embodiment that the rollback that causes when subscriber equipment shifts out the network's coverage area of packet domain switches.
When subscriber equipment has the audio call of an activity and is in packet domain and the borderline region of switching domain, can be the borderline region of LTE and 2/3G network in practice, the switching that determines to trigger from the packet domain to the circuit domain is judged in the base station, handoff procedure can see the corresponding steps among embodiment five and the embodiment six for details particularly, repeats no more here.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a method that realizes load balance of voice service is characterized in that, comprising:
When the generation network is unusual, receive the Indication message that return back to circuit domain; Described reception return back to the Indication message of circuit domain, comprising: pass through UP ' interface or Z1 interface and receive the Indication message that return back to described circuit domain that general access network controller sends;
Send to Mobility Management Entity and to comprise that business sets up request message, carry out the process that return back to circuit domain to trigger described Mobility Management Entity, and send the described base station of indication to the base station and carry out subscriber equipment to the information of the rollback of circuit domain; Wherein, described business is set up and is comprised in the request message that the described subscriber equipment support of indication return back to the indication information of circuit domain;
Send the measurement report of the described circuit domain wireless signal that comprises measurement to the base station, so that described base station is based on the switching of described measurement report triggering from packet domain to described circuit domain;
Receive the switching command that described base station sends;
The handoff procedure of execution from described packet domain to described circuit domain is to insert described circuit-domain network.
2. method according to claim 1, it is characterized in that described network comprises unusually: voice bearer is set up failure or the network that occurs is unusual or described subscriber equipment shifts out the network's coverage area of described packet domain in the voice call process in call establishment.
3. method according to claim 1 is characterized in that, the described measurement report that comprises the circuit domain wireless signal of measurement comprises:
The measurement result that comprises in the measurement report relevant packet domain is revised as measurement result on the low side, so that the decision-making that switches to circuit domain is made in the base station;
Or, comprised the measurement result of circuit domain wireless signal in the measurement report, do not comprise the measurement result of the wireless signal of the packet domain of having measured, so that the decision-making that switches to circuit domain is made in the base station;
Or, added indicating bit in the measurement report, so that the decision-making that switches to circuit domain is made in described base station according to described indicating bit.
4. a method that realizes load balance of voice service is characterized in that, comprising:
When the generation network is unusual, send it back the Indication message that falls back on circuit domain to subscriber equipment, so that subscriber equipment is set up request message to Mobility Management Entity transmission business, trigger described Mobility Management Entity executive circuit territory rollback, and carry out subscriber equipment to the information of the rollback of circuit domain to transmission indication base station, base station; Wherein said business is set up and is comprised in the request message that the described subscriber equipment support of indication return back to the indication information of circuit domain;
Receive the measurement report that comprises the wireless signal of measuring described circuit domain that described subscriber equipment sends;
Measurement report based on described subscriber equipment sends triggers the switching from packet field network to described circuit-domain network;
Transmission handovers request to Mobility Management Entity;
The switching indication that the receiving mobility management entity sends;
Send switching command to described subscriber equipment, so that described subscriber equipment is carried out the handoff procedure from packet field network to described circuit-domain network, insert objective circuit territory network.
5. method according to claim 4 is characterized in that, described network comprises unusually:
It is unusual that voice bearer is set up the network of failing or occurring in the voice call process in call establishment.
6. according to the method shown in claim 4 or 5, it is characterized in that, the described measurement report that sends based on described subscriber equipment, the switching that triggers from packet field network to circuit-domain network comprises:
Receive the measurement report that the measurement result of relevant packet domain is revised as measurement result on the low side that includes of described subscriber equipment transmission, make the decision-making that switches to described circuit domain;
Or, receive the measurement report that described subscriber equipment sends the measurement result that only comprises circuit domain, make the decision-making that switches to described circuit domain;
Or, receive the measurement report that comprises indicating bit that described subscriber equipment sends, make the decision-making that switches to described circuit domain according to this indicating bit.
7. a subscriber equipment is characterized in that, comprising:
First receiving element is used for receiving the Indication message that return back to circuit domain when network is unusual, specifically passes through UP ' interface or Z1 interface and receives the Indication message that return back to described circuit domain that general access network controller sends;
Measuring unit is for the wireless signal of measuring described circuit domain;
First transmitting element is used for the measurement report that transmission comprises the described circuit domain wireless signal of described measuring unit measurement, so that the base station is based on the switching of described measurement report triggering from packet domain to described circuit domain;
Second receiving element is used for receiving the switching command that described base station sends;
Performance element is used for carrying out the handoff procedure from packet domain to described circuit domain, is linked into described circuit-domain network;
Before described first transmitting element sends the measurement report of described circuit domain wireless signal, described subscriber equipment also sends to Mobility Management Entity and comprises that business sets up request message, carry out the process that return back to circuit domain to trigger described Mobility Management Entity, and carry out subscriber equipment to the information of the rollback of circuit domain to the described base station of transmission indication, described base station; Wherein, described business is set up and is comprised in the request message that the described subscriber equipment support of indication return back to the indication information of circuit domain.
8. subscriber equipment according to claim 7 is characterized in that, described measuring unit also is used for measuring the wireless signal of packet domain;
Described first transmitting element is used for sending the measurement report of the wireless signal of the described circuit domain that only comprises described measuring unit measurement.
9. a base station is characterized in that, comprising:
Second transmitting element is used for sending it back the Indication message that falls back on circuit domain to subscriber equipment when knowing that network is unusual; Described Indication message is used for making subscriber equipment set up request message to Mobility Management Entity transmission business, triggers described Mobility Management Entity executive circuit territory rollback, and carries out subscriber equipment to the information of the rollback of circuit domain to transmission indication base station, base station; Wherein said business is set up and is comprised in the request message that the described subscriber equipment support of indication return back to the indication information of circuit domain;
The 3rd receiving element be used for to receive the measurement report of the wireless signal in the measuring circuit territory that subscriber equipment sends;
Trigger element is used for the measurement report based on described subscriber equipment transmission, triggers the switching from packet field network to circuit-domain network;
The 3rd transmitting element is used for transmission and handovers request to Mobility Management Entity;
The 4th receiving element is used for receiving the switching indication that described Mobility Management Entity sends;
The 4th transmitting element is used for sending switching command to described subscriber equipment, so that described subscriber equipment is carried out the handoff procedure from the packet field network to the circuit-domain network, inserts objective circuit territory network.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102857994A (en) * | 2011-06-30 | 2013-01-02 | 中兴通讯股份有限公司 | Methods and systems for channelizing network access of terminal |
| US9723030B2 (en) * | 2011-10-04 | 2017-08-01 | Telefonaktiebolaget L M Ericsson (Publ) | Method and device for indicating VoLTE capability |
| CN102413251B (en) * | 2011-12-31 | 2014-11-05 | 携程计算机技术（上海）有限公司 | Large-scale distributed call center system |
| CN108419261B (en) * | 2015-11-24 | 2021-04-16 | Oppo广东移动通信有限公司 | Method, device, terminal and computer medium for processing network communication function abnormity |
| CN106448305B (en) * | 2016-06-29 | 2019-02-12 | 沈阳理工大学 | A kind of switching method of automatic speech learning system |
| CN113438679A (en) * | 2021-05-31 | 2021-09-24 | 荣耀终端有限公司 | Communication system and user equipment for improving call completion rate of telephone under SA network |
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