CN101742591A - Method, communication system and equipment for indicating user equipment to initiate call - Google Patents
Method, communication system and equipment for indicating user equipment to initiate call Download PDFInfo
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- CN101742591A CN101742591A CN200810226823A CN200810226823A CN101742591A CN 101742591 A CN101742591 A CN 101742591A CN 200810226823 A CN200810226823 A CN 200810226823A CN 200810226823 A CN200810226823 A CN 200810226823A CN 101742591 A CN101742591 A CN 101742591A
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Abstract
The invention discloses a method, a communication system and equipment for indicating user equipment to initiate a call. The method comprises the following steps that: the user equipment sends a radio resource control connection request message to a radio network controller, wherein the connection request message carries a service type; and the radio network controller indicates the user equipment to initiate the call on a corresponding communication network according to the service type and the preset mapping relation, wherein the mapping relation is the corresponding relation between the service type and the type of the communication network bearing the service type. The method, the communication system and the equipment not only avoid the contradiction between timely switching and switching success rate existing during the switching of 2G/3G or other types of communication networks after the radio access bearer is accessed, but also reduce the possibility of call drop of calling and called parties caused by easy failure after the radio access bearer is accessed and then is switched.
Description
Technical field
The present invention relates to wireless communication technology, particularly a kind of method, communication system and radio network controller of indicating subscriber equipment in different communication network, to make a call.
Background technology
In mobile radio communication operation process, a kind of operation scheme is arranged: 2G is adopted in some communication service (for example speech business), as GSM (Global System for Mobile communication, global system for mobile communications) network carrying, some business (data service) adopts 3G, as TD-SCDMA (Time DivisionSynchronized Code Division Multiple Access, the time-division synchronous CDMA system, be one of 3G network standard of 3GPP tissue definition), WCDMA (Wireless Code Division MultipleAccess, the wireless code division multiple address inserts) network carrying.
At present, in 3GPP TS 25.413 protocol descriptions, solution is as follows: CN (Core Network, core net) notice RNC (Radio Network Controller, radio network controller) RAB (RadioAccess Bearer, RAB) in the attribute, there is Service handover (service is switched) attribute:
1, Handover to GSM Should be Performed (tangentially GSM);
2, Handover to GSM Should not be Performed (not tangentially GSM);
3, Handover to GSM Shall not be Performed (tangentially GSM);
RNC makes following operation according to attribute:
1, should be handed over to GSM, i.e.from a NAS point of view, the requestedRAB should be handed over to GSM as soon as possible although the final decisionwhether to perform a handover to GSM is still made in the UTRAN. (tangential GSM, from the Non-Access Stratum viewpoint, the RAB of request is GSM as much as possible tangentially, though, final decision, whether tangential GSM is by UTRAN (UMTS Terrestrial Radio AccessNetwork, UMTS Terrestrial radio access network; UMTS:Universal Mobile TelecommunicationSystem, universal mobile telecommunications system) make a decision.)；
2, should not be handed over to GSM, i.e.from a NAS point of view, therequested RAB should remain in UMTS as long as possible although the finaldecision whether to perform a handover to GSM is still made in the UTRAN. (tangential GSM not, from the Non-Access Stratum viewpoint, the RAB of request should keep and stays as much as possible at UMTS, though, final decision, whether tangential GSM is made a decision by UTRAN.)
3, shall not be handed over to GSM, i.e.the requested RAB shall never behanded over to GSM.This means that the UTRAN shall not initiate handover toGSM for the UE unless the RABs with this indication have first been released withthe normal release procedures. (tangential GSM, the RAB of request is GSM tangentially, this meaning UTRAN can not switch UE (User Equipment, subscriber equipment) to GSM, unless possess the RAB of this attribute, normally discharged.)
Like this, when operator wishes that some business (as speech business) is carried in the 2G network, it is Handover to GSM Should be Performed that RAB attribute Service handover then is set, and RNC just switches this RAB to GSM as far as possible, adopts the GSM network carrying.
Existing this scheme deficiency is: RNC according to the 3GPP protocol requirement, initiates the switching to GSM as far as possible after inserting RAB.Switch as far as possible, just mean that switching condition is not strict, under some condition, switching may be failed, and causes call drop.And, as long as a UE call drop, will cause the UE on the calling and called both direction all can call drop because calling and called are all being communicated with.That is to say, have a contradiction as far as possible between switching and the handover success rate.
Summary of the invention
The invention provides a kind of method of indicating subscriber equipment in different communication network, to make a call, communication system and equipment, in order to solve the timely switching after RAB inserts, carrying out existing in the dissimilar communication network handoff procedures in the prior art with the contradiction between the handover success rate.
The embodiment of the invention provides a kind of method of indicating subscriber equipment to make a call in different communication network, comprise the steps:
Subscriber equipment sends wireless resource control connection request message to radio network controller, carries type of service in the described connection request message;
Radio network controller indicates subscriber equipment to make a call on corresponding communication network according to described type of service and default mapping relations, and described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service.
Preferably, radio network controller indicates subscriber equipment to make a call on the 2G communication network according to described type of service and default mapping relations, comprises the steps:
Radio network controller carries 2G communication network cell information by the redirection information in the Radio Resource control connection refuse information, makes the subscriber equipment gravity treatment to the 2G communication network;
Subscriber equipment makes a call at the 2G communication network.
Preferably, further comprise the steps:
When subscriber equipment makes a call when failure at the 2G communication network, radio network controller indicates this subscriber equipment to make a call on the communication network of 3G communication network or other types.
Preferably, further comprise the steps:
When radio network controller is determined to send Radio Resource control connection refuse information for the subscriber equipment of initiating wireless resource control connection request message, indicate this subscriber equipment on the communication network of 3G communication network or other types, to make a call.
Preferably, further comprise the steps:
When radio network controller determined that subscriber equipment can not make a call on the 2G communication network, the indication subscriber equipment made a call on the communication network of 3G communication network or other types.
The embodiment of the invention also provides a kind of communication system of indicating subscriber equipment to make a call in different communication network, comprise radio network controller, subscriber equipment, wherein:
Subscriber equipment is used for sending wireless resource control connection request message to radio network controller, carries type of service in the described connection request message;
Radio network controller is used for indicating subscriber equipment to make a call on corresponding communication network according to described type of service and default mapping relations, and described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service;
Subscriber equipment also is used for making a call according to the indication of radio network controller.
Preferably, radio network controller is further used for carrying 2G communication network cell information by the redirection information in the Radio Resource control connection refuse information, and the subscriber equipment gravity treatment is made a call at the 2G communication network behind the 2G communication network.
Preferably, radio network controller is further used for indicating this subscriber equipment to make a call on the communication network of 3G communication network or other types making a call when failure at the 2G communication network when subscriber equipment.
Preferably, radio network controller is further used for indicating this subscriber equipment to make a call on the 3G communication network when determining to send Radio Resource control connection refuse information for the subscriber equipment of initiating wireless resource control connection request message.
Preferably, radio network controller is further used for when definite subscriber equipment can not make a call on the 2G communication network, and the indication subscriber equipment makes a call on the communication network of 3G communication network or other types.
The embodiment of the invention also provides a kind of radio network controller of indicating subscriber equipment to make a call in different communication network, comprising:
Receiver module is used to receive the wireless resource control connection request message that subscriber equipment sends, and carries type of service in the described connection request message;
Indicating module is used for indicating subscriber equipment to make a call on corresponding communication network according to described type of service and default mapping relations, and described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service.
Preferably, described indicating module is further used for carrying 2G communication network cell information by the redirection information in the Radio Resource control connection refuse information, and the subscriber equipment gravity treatment is made a call at the 2G communication network behind the 2G communication network.
Preferably, described indicating module is further used for indicating this subscriber equipment to make a call on the communication network of 3G communication network or other types making a call when failure at the 2G communication network when subscriber equipment.
Preferably, described indicating module is further used for indicating this subscriber equipment to make a call on the communication network of 3G communication network or other types when determining to send Radio Resource control connection refuse information for the subscriber equipment of initiating wireless resource control connection request message.
Preferably, described indicating module is further used for when definite subscriber equipment can not make a call on the 2G communication network, and the indication subscriber equipment makes a call on the communication network of 3G communication network or other types.
Beneficial effect of the present invention is as follows:
In the embodiment of the invention, subscriber equipment sends wireless resource control connection request message to radio network controller, carries type of service in the described connection request message; Radio network controller indicates subscriber equipment to make a call on corresponding communication network according to described type of service and default mapping relations.Owing to will determine that process that UE inserts the communication network of 2G or 3G or other types is placed on RRC and connects establishment stage, thereby the communication network of avoiding carrying out in the prior art 2G and 3G or other types after RAB inserts causes switching in time with the contradiction between the handover success rate in switching; Also reduced simultaneously and switched after RAB inserts, failure causes the possibility of calling and called call drop easily.
Description of drawings
The method implementing procedure schematic diagram that Fig. 1 makes a call in different communication network for indication UE in the embodiment of the invention;
The communication system architecture schematic diagram that Fig. 2 makes a call in different communication network for indication UE in the embodiment of the invention;
The radio network controller structural representation that Fig. 3 makes a call in different communication network for indication UE in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
Design of the present invention is, to determine that process that UE inserts the communication network of 2G or 3G or other types is placed on RRC and connects establishment stage, thereby the communication network of avoiding carrying out 2G and 3G or other types after RAB inserts causes switching in time with the contradiction between the handover success rate in switching; Also reduced simultaneously and switched after RAB inserts, failure causes the possibility of calling and called call drop easily.Obviously, so long as possess the communication network of the type of RRC and the RAB characteristics between two stages, just can utilize RRC and RAB joint connection characteristics to solve this problem.Be that example describes with 2G and 3G in the enforcement, but know easily, 2G is put case with other communication networks of 3G same characteristics technology in also can enough embodiment of the invention and is solved same technical problem with having, 4G communication network for example emerging, that have same characteristics in RRC, RAB stage with 3G network so obviously also comprises communication networks such as 5G that may occur, that have same characteristics in future.
The method implementing procedure schematic diagram that Fig. 1 makes a call in different communication network for indication UE, as shown in the figure, when indication, can implement as follows:
The RRC connection is for the signaling of setting up between UE and the UTRAN connects, and RAB is the agreement of the connection between UE and the CN.RAB is meant that the carrying of user plane is used for transmitting between UE and the CN speech data and multimedia service, and UE at first will finish RRC connection foundation could set up RAB then.Therefore, be placed on RRC by the process that will determine UE access 2G or 3G and connect establishment stage, just can avoid after RAB inserts, carrying out causing in the 2G/3G switching switching in time in the prior art with the contradiction between the handover success rate; Also reduced simultaneously and switched after RAB inserts, failure causes the possibility of calling and called call drop easily.
Related news in RRC connects: comprise that RRC connection request, RRC connect foundation (release), RRC connects foundation (release) and finishes, in these message, mainly contain these contents: RB prestore indication, UE information, metrical information, SRB information, transmitting channel information, physic channel information, wireless resource information.In setting up the RRC connection procedure, rise when exhaling, at first the request that receives Non-Access Stratum by the RRC of UE sends RRC and connects and set up the RNC of request message to UTRAN, has just comprised called UE number, type of service or the like in connection request message.Therefore the loaded service type is set up in the request of just can determining in step 101.
After determining type of service, just can in step 102, indicate UE on 2G communication network or 3G communication network, to make a call according to described type of service and default mapping relations, described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service, these mapping relations can be set according to the needs of operation, for example adopt 2G network bearing voice service, top/terminal session calling etc., some data service, visual telephone service etc. then carry with 3G network.Whether the effect of these mapping relations is as decision with the foundation of this service access 2G network or 3G network.For example: RNC is at the RRC establishment stage, judge that UE sends RRC Connection Request and carries reason for claim, if the type of service that reason for claim shows is Originating/Terminating ConversationalCall/Emergency (top/terminal session is called out), determine that then it is fit to adopt the 2G network carrying.And for example: in the RNC deterministic process, the CALL Type (type of call) that can further utilize UE message to carry judges, when CALL Type is Speech (voice), inserts at 2G; If be Video (video telephone), then insert at 3G.
RNC receive RRC connect set up request message after, according to the network condition distributing radio resource, and in RRC Connection setup (RRC connects foundation) message, sending to UE, UE will be according to message arrangement protocal layers parameter, returns acknowledge message and makes a call.RNC just can indicate UE to make a call on 3G network by RRC Connection setup message.
In concrete the enforcement, RNC indicates UE to make a call at the 2G communication network according to described type of service with default mapping relations and then can comprise the steps:
RNC carries 2G communication network cell information by the Redirectioninformation (redirection information) in RRC Connection Reject (RRC the connects refusal) message, makes the UE gravity treatment to the 2G communication network;
UE makes a call at the 2G communication network.
Further, can also comprise the steps:
When UE makes a call when failure at the 2G communication network, RNC indicates this UE to make a call on the 3G communication network.
Further, can also comprise the steps:
When RNC determines to give the UE that initiates RRC connection request message to send the RRC connection refused message, indicate this UE on the 3G communication network, to make a call.
Concrete, RNC is according to the UE sign of carrying among the RRC Connection Request, if find before this, this UE was sent RRC Connection Reject message, and carry the GSM cell information, then no longer send Reject message, but send RRC Connection Setup (RRC connects foundation), finish RRC and connect in the 3G sub-district.That is, RNC is redirected to the 2G network but unsuccessful UE sends RRC Connection Request handles at 3G network to ordering.
Further, can also comprise the steps:
When RNC determined that UE can not make a call on the 2G communication network, indication UE made a call on the 3G communication network.For example: if owing to the GSM of 2G network covers reason, UE can not select the GSM sub-district, and UE continues to make a call at 3G network so.That is, if UE can not then come back to 3G network and initiate RRC Connection Request in the 2G network-originated call.
Based on same inventive concept, the present invention also provides the communication system that a kind of UE of indication makes a call, the radio network controller that a kind of UE of indication makes a call in different communication network in different communication network, because communication system has similar principle to RNC to the method that indication UE makes a call in different communication network, therefore the enforcement that the enforcement of communication system and RNC can reference method, repeating part repeats no more.
Fig. 2 as shown in the figure, comprises RNC201, UE202 for the communication system architecture schematic diagram that indication UE makes a call in the communication system in different communication network, wherein:
UE202 is used for sending RRC connection request message to RNC201, carries type of service in the described connection request message;
RNC201 is used for indicating UE202 to make a call on 2G communication network or 3G communication network according to described type of service and default mapping relations, and described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service;
UE202 also is used for making a call according to the indication of RNC201.
RNC201 can also be further used for carrying 2G communication network cell information by the Redirection information in the RRC Connection Reject message, and the UE gravity treatment is made a call at the 2G communication network behind the 2G communication network.
RNC201 can also be further used for making a call when failure at the 2G communication network as UE202, and indication UE202 makes a call on the 3G communication network.
RNC201 can also be further used for when determining to send the RRC connection refused message for the UE202 that initiates RRC connection request message, and indication UE202 makes a call on the 3G communication network.
RNC201 can also be further used for when definite UE202 can not make a call on the 2G communication network, and indication UE202 makes a call on the 3G communication network.
Fig. 3 is the radio network controller structural representation that indication UE makes a call in the 2G/3G communication network, as shown in the figure, can comprise among the RNC:
Indicating module 302 is used for indicating UE to make a call on 2G communication network or 3G communication network according to described type of service and default mapping relations, and described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service.
Indicating module can be further used for carrying 2G communication network cell information by the Redirectioninformation in the RRC Connection Reject message, and the UE gravity treatment is made a call at the 2G communication network behind the 2G communication network.
Indicating module can be further used for indicating this UE to make a call on the 3G communication network making a call when failure at the 2G communication network as UE.
Indicating module can be further used for indicating this UE to make a call on the 3G communication network when determining to send the RRC connection refused message for the UE that initiates RRC connection request message.
Indicating module can be further used for when definite UE can not make a call on the 2G communication network, and indication UE makes a call on the 3G communication network.
As can be seen from the above-described embodiment, RNC sends the reason that RRC Connection Request carries according to UE, and the UE of some reason is redirected to the 2G network; Because be defined as the RRC stage opportunity that will select whether to insert the 2G network, but not behind the access RAB of the prior art, therefore, the timely switching of not only having avoided carrying out existing in the 2G/3G handoff procedure after the existing RAB access is with the contradiction between the handover success rate; Also reduced and switched after RAB inserts, failure causes the possibility of calling and called call drop easily.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Claims (15)
1. a method of indicating subscriber equipment to make a call in different communication network is characterized in that, comprises the steps:
Subscriber equipment sends wireless resource control connection request message to radio network controller, carries type of service in the described connection request message;
Radio network controller indicates subscriber equipment to make a call on corresponding communication network according to described type of service and default mapping relations, and described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service.
2. the method for claim 1 is characterized in that, radio network controller is to make a call on the communication network of 2G type in the communication network type according to described type of service and default mapping relations indication subscriber equipment, comprises the steps:
Radio network controller carries 2G communication network cell information by the redirection information in the Radio Resource control connection refuse information, makes the subscriber equipment gravity treatment to the 2G communication network;
Subscriber equipment makes a call at the 2G communication network.
3. method as claimed in claim 2 is characterized in that, further comprises the steps:
When subscriber equipment makes a call when failure at the 2G communication network, radio network controller indicates this subscriber equipment to make a call on the communication network of 3G communication network or other types.
4. method as claimed in claim 2 is characterized in that, further comprises the steps:
When radio network controller is determined to send Radio Resource control connection refuse information for the subscriber equipment of initiating wireless resource control connection request message, indicate this subscriber equipment on the communication network of 3G communication network or other types, to make a call.
5. as the arbitrary described method of claim 1 to 3, it is characterized in that, further comprise the steps:
When radio network controller determined that subscriber equipment can not make a call on the 2G communication network, the indication subscriber equipment made a call on the communication network of 3G communication network or other types.
6. a communication system of indicating subscriber equipment to make a call in different communication network comprises radio network controller, subscriber equipment, it is characterized in that,
Subscriber equipment is used for sending wireless resource control connection request message to radio network controller, carries type of service in the described connection request message;
Radio network controller is used for indicating subscriber equipment to make a call on corresponding communication network according to described type of service and default mapping relations, and described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service;
Subscriber equipment also is used for making a call according to the indication of radio network controller.
7. communication system as claimed in claim 6, it is characterized in that, radio network controller is further used for carrying 2G communication network cell information by the redirection information in the Radio Resource control connection refuse information, and the subscriber equipment gravity treatment is made a call at the 2G communication network behind the 2G communication network.
8. communication system as claimed in claim 6, it is characterized in that, radio network controller is further used for indicating this subscriber equipment to make a call on the communication network of 3G communication network or other types making a call when failure at the 2G communication network when subscriber equipment.
9. communication system as claimed in claim 6, it is characterized in that, radio network controller is further used for indicating this subscriber equipment to make a call on the communication network of 3G communication network or other types when determining to send Radio Resource control connection refuse information for the subscriber equipment of initiating wireless resource control connection request message.
10. as the arbitrary described communication system of claim 6 to 8, it is characterized in that, radio network controller is further used for when definite subscriber equipment can not make a call on the 2G communication network, and the indication subscriber equipment makes a call on the communication network of 3G communication network or other types.
11. a radio network controller of indicating subscriber equipment to make a call in different communication network is characterized in that, comprising:
Receiver module is used to receive the wireless resource control connection request message that subscriber equipment sends, and carries type of service in the described connection request message;
Indicating module is used for indicating subscriber equipment to make a call on corresponding communication network according to described type of service and default mapping relations, and described mapping relations are the corresponding relation between type of service and the communication network type of carrying this type of service.
12. radio network controller as claimed in claim 11, it is characterized in that, described indicating module is further used for carrying 2G communication network cell information by the redirection information in the Radio Resource control connection refuse information, and the subscriber equipment gravity treatment is made a call at the 2G communication network behind the 2G communication network.
13. radio network controller as claimed in claim 12, it is characterized in that, described indicating module is further used for indicating this subscriber equipment to make a call on the communication network of 3G communication network or other types making a call when failure at the 2G communication network when subscriber equipment.
14. radio network controller as claimed in claim 12, it is characterized in that, described indicating module is further used for indicating this subscriber equipment to make a call on the communication network of 3G communication network or other types when determining to send Radio Resource control connection refuse information for the subscriber equipment of initiating wireless resource control connection request message.
15. as the arbitrary described radio network controller of claim 11 to 14, it is characterized in that, described indicating module is further used for when definite subscriber equipment can not make a call on the 2G communication network, and the indication subscriber equipment makes a call on the communication network of 3G communication network or other types.
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| CN200810226823A CN101742591A (en) | 2008-11-17 | 2008-11-17 | Method, communication system and equipment for indicating user equipment to initiate call |
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| CN200810226823A CN101742591A (en) | 2008-11-17 | 2008-11-17 | Method, communication system and equipment for indicating user equipment to initiate call |
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| CN102573103A (en) * | 2010-12-10 | 2012-07-11 | 中国移动通信集团广东有限公司 | Wireless network control method and wireless network controller |
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| US9750063B2 (en) | 2013-06-26 | 2017-08-29 | Huawei Technologies Co., Ltd. | Connection setup method, apparatus, and system |
| WO2017113402A1 (en) * | 2015-12-31 | 2017-07-06 | 华为技术有限公司 | Network access method and access device |
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Application publication date: 20100616 |