CN100584081C - Method for reducing time delay established by calling in mobile communication system - Google Patents
Method for reducing time delay established by calling in mobile communication system Download PDFInfo
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- CN100584081C CN100584081C CN200510110790A CN200510110790A CN100584081C CN 100584081 C CN100584081 C CN 100584081C CN 200510110790 A CN200510110790 A CN 200510110790A CN 200510110790 A CN200510110790 A CN 200510110790A CN 100584081 C CN100584081 C CN 100584081C
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Abstract
This invention relates to mobile communication system method to reduce call establishing time lag, which establishes time lag for lint and to impact time lag sensitive business quality to result one long time cause to fulfill all process to send out call ends. This invention can preprocess call business information in non-interface layer in interacting process to process index and process calls information according to spare situation of called end.
Description
Technical field
The present invention relates to the call-establishing method in the mobile communication, relate in particular to the call-establishing method in the 3-G (Generation Three mobile communication system), to reduce call set-up time effectively.
Background technology
In mobile communication, send call request until connect from a travelling carriage with the called party, need a certain amount of information of exchange between travelling carriage, base station, radio network controller and the core net etc., so that set up communication link between caller platform and called subscriber, this foundation needs certain duration.From communication quality, this duration is short more, and quality is high more.Certainly for common communication service, the reduction of this quality can also be tolerated sometimes, yet for some business to this delay sensitive that continues, for example interactive entertainment or VOIP etc. are professional, in the present mobile communication system, especially the calling establishment time delay of 3-G (Generation Three mobile communication system) seem long (generally reach 6-10 second) has influenced the quality of this class business to a great extent.
Fig. 1 shows the schematic diagram of the call set up signaling flow process of calling terminal in the present 3-G (Generation Three mobile communication system); Fig. 2 shows the call set up signaling flow process of called subscriber in the present 3-G (Generation Three mobile communication system).As shown in Figure 1, be example with the promptly mobile push-to-talk PoC service of a typical services in the VOIP business.After calling terminal sends call request, between mobile station UE, base station node B, radio network controller (RNC) and core net CN, need to carry out a series of action, to finish call setup as calling terminal.Present call setup mainly comprises three processes: process 1: Radio Resource control (RRC) connects sets up; Process 2: Non-Access Stratum (NAS) signaling connects to be set up and Non-Access Stratum (NAS) signalling interactive process; And process 3: RAB (RAB) is set up process.
The purpose that RRC connects the process of setting up is to set up special-purpose signaling interface channel between travelling carriage and land radio access web, to transmit interactive signaling by air interface between mobile station UE and the land radio access web and between mobile station UE and the core net CN.
The purpose that the NAS signaling connects the process of setting up is to set up the passage of Signalling exchange, processes such as it mainly comprises, and service request (Service Request), the foundation of IU interface (interface between radio network controller (RNC) and the core net CN) SCCP (SCCP), authentication and encryption, safe mode (Security Mode) are provided with, TMSI (Temporary Mobile Subscriber Identity) heavily distributes, PDP (packet data protocol) activation request between mobile station UE and core net CN.According to agreement, authentication in the NAS signaling and encryption, TMSI such as heavily distribute optional at process.
After NAS signaling connection foundation was finished, beginning RAB set up process.In this process, core net CN sends RAB request for allocation (RAB Assignment Request) message and gives radio network controller (RNC), radio network controller (RNC) carries out the mapping of RAB (RAB) to RB (radio bearer) after receiving this message, then base station node B is carried out Radio Link (RL, Radio Link) reshuffles, Access Link Control Application Part (ALCAP, Access Link Control Application Part) sets up, Frame Protocol FP (Frame Protocol) waits operation synchronously, radio network controller (RNC) sends radio bearer and sets up (RB Setup) message to mobile station UE then, mobile station UE is received the Radio Link Controller RLC (Radio LinkController) of configuration local terminal after this message, entities such as media access controller MAC (Media Access Controller) and physical layer, mobile station UE sends RB foundation and finishes (RB Setup Complete) message to radio network controller (RNC) then, radio network controller (RNC) is configuring the RLC of local terminal, send RAB assignment response (RABAssignment Response) message informing core net CN after the MAC, RAB sets up successfully, transmission was accepted PDP activation (Activate PDP Context Accept) message to mobile station UE after core net CN received this message, the notice mobile station UE can begin the transmission of data, so far, RAB sets up successfully.
After above-mentioned three processes foundation is finished, can carry out paging (paging) process.It is called that paging (paging) process is used for paging, network side is dispatched paging and launch beep-page message on paging channel, mobile station UE adopts discontinuous mode to receive (DRX) paging, and network is by system message broadcasting or other signaling mobile station UE DRX cycles.Regulation in the 3GPP agreement 25.331, the mobile station UE DRX receiving cycle under the idle pulley be 0.64,1.28,2.56,5.12} second.A key factor that influences the paging time delay is exactly a DRX cycle.Specifically for mobile push-to-talk PoC service, can send the Session initiation Protocol sip invite message to Session initiation Protocol/procotol core (SIP/Ipcore) this moment, then this message of SIP/IPcore route is given the PoC server, and resolves sip invite message.
After the main frame paging is set up the mobile communication system acquisition called party information that finishes, then enter called subscriber's call setup flow process, at this moment can be referring to Fig. 2.Service general bag wireless service support node (SGSN) begins to send the paging to the called subscriber.After the called subscriber receives beep-page message, finish RRC and connect the process of setting up, the NAS signaling connects and signalling interactive process, and RAB sets up process.And then response enters the PoC session business from the SIP invite message of PoC server.Because called subscriber's RRC connects the process of setting up, process is set up in the connection of NAS signaling and RAB sets up process and the calling terminal corresponding process is basic identical, has only increased a paging before above-mentioned three processes, so no longer be repeated in this description.
By top analysis as can be known, the time-delay of whole calling is that caller adds called time delay for VOIP is professional, and the transmission time of sip invite message.The signaling procedure that call establishment relates to is many, and each Signalling exchange all needs the regular hour to transmit and handle, thereby call set-up time is longer.
Summary of the invention
The objective of the invention is to the call-establishing method in the existing mobile communication system is improved, the paging of calling terminal in advance, the time of shortening call setup is to improve the mobile communication quality.
The applicant finds to set up in the signaling process at above-mentioned traditional calling terminal, paging must calling terminal finish Radio Resource control (RRC) connect set up, Non-Access Stratum (NAS) signaling connects and sets up and Non-Access Stratum (NAS) signalling interactive process and RAB (RAB) just can carry out after setting up process.So just increased the time delay of call setup.But can Non-Access Stratum (NAS) signaling connect to set up and Non-Access Stratum (NAS) signalling interactive process in the interpolation information relevant with the called subscriber, such as called number, called position and called routing iinformation etc., so just can be after this process RAB (RAB) set up before the process and to carry out paging called.If the called subscriber is in idle state, then the called subscriber carries out the RRC connection, otherwise does not do any operation in this time paging in paging this time.Once more to called initiation paging, called receiving can directly be carried out NAS Signalling exchange and RAB after this secondary paging and set up, thereby shortened setup delay after caller sends SIP and invites.
Based on above-mentioned principle, reduce the method for calling terminal calling establishment time delay in a kind of mobile communication system of the present invention, described mobile communication system comprises travelling carriage, the base station, radio network controller, service general bag wireless service support node and gateway general bag wireless service support node, this method comprises: the Radio Resource control connection is set up process, again Non-Access Stratum signaling connection foundation of handling and reciprocal process and RAB are set up process, transmission after described three processes finish, resolving SIP invites, carry out paging then, inventive point of the present invention is, the described Non-Access Stratum signaling of handling again connects to be set up and reciprocal process, further comprises:
For the business request information of described Non-Access Stratum direct-sending message, in the type of service of described request message content, add the sign of called service;
In activating packet data protocol context request message, add called number;
Described travelling carriage sends described activation packet data protocol context request message to described SGSN, and described SGSN receives described activation packet data protocol context request message, and therefrom obtains called number;
Described SGSN carries out number analysis to described telephone number, and meanwhile described SGSN sends to described GGSN and creates packet data protocol context request message;
After described GGSN received described establishment packet data protocol context request message, inquiring position server master site register HLR authenticated the called subscriber, sent the establishment packet data protocol context request behind the authentication success and responded to described SGSN;
Described SGSN obtains called subscriber's positional information and routing iinformation from described location server HLR, send the called paging indication first time behind analysis result that obtains described called number and called subscriber's positional information and routing iinformation;
Revise beep-page message, the prompting of additional called service in the paging reason of described beep-page message, the described Non-Access Stratum signaling of handling again connects foundation and reciprocal process finishes;
Then, set the type of described beep-page message, advance to described RAB and set up before the process and the paging service of the different paging types of separate processes sending paging indication to the called subscriber according to called subscriber's idle condition.
In said method, the type of described setting beep-page message, in advance part paging and the process of the separate processes of the paging service of different paging types specifically comprised:
In the described paging indication first time, if described called subscriber is in idle state, then setting described beep-page message is type one, is type two otherwise set described beep-page message;
After the called subscriber receives the described paging indication first time, if described beep-page message is a type one, then carry out called subscriber's Radio Resource control connection, finish paging to described called subscriber, if described beep-page message is a type two, then temporarily do not deal with, indicate to described called subscriber but after sending SIP (Chinese term please be provided) invitation, will send paging for the second time by described calling terminal, described called subscriber receives the Non-Access Stratum signaling that promptly begins described to carry out the called subscriber after the paging indication for the second time and connects and set up and mutual and RAB is set up process, finishes the paging to described called subscriber.
In said method, described activation packet data protocol context request message comprises access node title, packet data protocol address, service quality and called number.
In said method, described number analysis can be realized in the inside of SGSN.
In said method, described number analysis can be delivered to mobile main dispatching centre to described number by SGSN and realize.
In said method, described called service comprises interactive entertainment business, emergency voice calls business, wireless push talk business, Basic voice call business, basic grouped territory business, flows business and interactive service substantially.
In said method, the local terminal entity of described travelling carriage comprises Radio Link Controller, media access controller and the physical layer of local terminal.
In said method, the local terminal entity of described radio network controller comprises the Radio Link Controller and the media access controller of local terminal.
Because the information that the present invention is relevant with called service, such as type of service, called number or called route etc., in Non-Access Stratum (NAS) signaling connection foundation and Non-Access Stratum (NAS) signalling interactive process, anticipated, the existing relatively method of method provided by the invention, just can partly be advanced to second process to the paging that need just carry out originally after the 3rd process is RAB (RAB) foundation is to carry out after Non-Access Stratum (NAS) signaling connects foundation and Non-Access Stratum (NAS) signalling interactive process.When shifting to an earlier date paging, when the called subscriber was in idle state, the called subscriber can carry out the RRC attended operation, and the calling terminal paging finishes.Otherwise, sending when sending paging once more after SIP invites and indicating in caller to the called subscriber, the called subscriber directly carries out NAS Signalling exchange and RAB and sets up, and the calling terminal paging finishes.The called subscriber can carry out the RRC connection in advance like this, has saved this required time of operation in step, thus the time delay of effectively having saved call setup.
Description of drawings
Fig. 1 is the schematic diagram of the call set up signaling flow process of calling terminal in the traditional mobile communication system.
Fig. 2 is the schematic diagram of the call set up signaling flow process of called end in the traditional mobile communication system.
Fig. 3 is the schematic diagram of the call set up signaling flow process of calling terminal in the mobile communication system of the present invention.
Fig. 4 is the detailed maps of calling step of the present invention.
Embodiment
The embodiment of call establishment of the present invention is described below with reference to accompanying drawings.
As shown in Figure 3, it shows the schematic diagram of the call set up signaling flow process of calling terminal in the mobile communication system of the present invention.
Comparison diagram 1 and Fig. 3 are as can be known, set up in the process whole, first process: Radio Resource control (RRC) connects foundation, the 3rd process: RAB (RAB) is set up process, both are identical, for saving space and giving prominence to essential characteristics of the present invention, this two process no longer is explained in detail, and we believe, those of ordinary skill in the art can be understood and realizes according to present known technology.
Improvement of the present invention is above-mentioned process two: promptly Non-Access Stratum (NAS) signaling connects foundation and Non-Access Stratum (NAS) signalling interactive process.As mentioned above, design of the present invention is based in the calling terminal in advance part paging process and according to called subscriber's the branch situation of whether leave unused processing beep-page message at that time.Paging is to occur in after three processes finish in the calling terminal in traditional method.The present invention presets called relevant information in second stage, can before the 3rd process, send paging indication in advance to the called subscriber, when the called subscriber was in idle state, the called subscriber can carry out the operation of RRC Radio Resource control connection, finishes the paging to the called subscriber; Otherwise, sending when sending paging once more after SIP invites and indicating in caller to the called subscriber, the called subscriber directly carries out NAS Signalling exchange and RAB and sets up, and finishes the paging to the called subscriber.The called subscriber can carry out the RRC connection in advance like this, can reduce the calling time delay.
See also Fig. 3 and Fig. 4, compare with the method for Fig. 1, in the calling terminal call establishment of the present invention, some step that Non-Access Stratum (NAS) signaling connects in foundation and Non-Access Stratum (NAS) signalling interactive process has been carried out handling again, preset the relevant information of paging, this processing has comprised:
For the business request information of described Non-Access Stratum direct-sending message, in the type of service of described request message content, add the sign of called service;
In activating packet data protocol context request message, add called number;
Described travelling carriage sends to described SGSN and activates packet data protocol context request message, and described SGSN receives described activation packet data protocol context request message, and therefrom obtains called number;
Described SGSN carries out number analysis to described telephone number, and meanwhile described SGSN sends to described GGSN and creates packet data protocol context request message;
After described GGSN received described establishment packet data protocol context request message, inquiring position server HLR (Chinese term please be provided) authenticated the called subscriber, sent the establishment packet data protocol context request behind the authentication success and responded to described SGSN;
Described SGSN obtains called subscriber's positional information and routing iinformation from described location server HLR, send called paging behind the analysis result that obtains described called number and called positional information and routing iinformation;
Revise beep-page message, in the paging reason of described beep-page message, add the prompting of called service, and beep-page message is classified according to the residing state of called subscriber self.When the called subscriber was in idle state, the beep-page message that be set this moment was a paging type one, and when it was in running order, it was the paging type that this beep-page message is set
After the called subscriber receives this paging indication, come minute situation to handle a beep-page message according to the classification of beep-page message.Specific implementation is: when the beep-page message that receives be type for the moment, the called subscriber carries out the operation of RRC Radio Resource control connection; When the beep-page message that receives was type two, the called subscriber did not do any processing.
Calling terminal sends sip invite message to SIP/IPcore after RAB RAB foundation is finished, then this message of SIP/IPcore route is given the PoC server, resolves sip invite message therein.While SGSN initiates paging once more and indicates to the called subscriber, and the type in the beep-page message must be a paging type two at this moment.The called subscriber is after receiving the indication of paging this time, need not carry out RRC Radio Resource control connection and operate this step, set up process and directly begin connection foundation of Non-Access Stratum (NAS) signaling and reciprocal process and RAB (RAB), so called subscriber's paging operation is finished.After three steps of called subscriber are finished, just respond SIP invite message, enter in the PoC session business from PoC server.
In a specific embodiment, these specific called services can be interactive entertainment business, emergency voice calls business, wireless push talk business, Basic voice call business, basic grouped territory business, flow business and interactive service etc. substantially.And borrow mobile push-to-talk PoC service to describe in the present embodiment.
In the present embodiment, packet data protocol PDP Context request message comprises APN, packet data protocol address, service quality and called number.And SGSN within it portion the telephone number that obtains from the data protocol contexts request message is carried out number analysis, also number can be delivered among the MSC and be analyzed.Here, the local terminal entity of travelling carriage can be Radio Link Controller, media access controller and the physical layer of local terminal.The local terminal entity of radio network controller comprises the Radio Link Controller and the medium Access Layer of local terminal.
Claims (8)
- Reduce the method for calling terminal calling establishment time delay in 1 one kinds of mobile communication system, described mobile communication system comprises travelling carriage, the base station, radio network controller, service general bag wireless service support node and gateway general bag wireless service support node, this method comprises: Yun Hang Radio Resource control connection is set up process sequentially, again Non-Access Stratum signaling connection foundation of handling and reciprocal process and RAB are set up process, transmission after described three processes finish, the parsing Session initiation Protocol is invited, carry out paging then, it is characterized in that the described Non-Access Stratum signaling of handling again connects foundation and reciprocal process further comprises:For the business request information of described Non-Access Stratum direct-sending message, in the type of service of described request message content, add the sign of called service;In activating packet data protocol context request message, add called number;Described calling terminal sends described activation packet data protocol context request message to described service general bag wireless service support node, described service general bag wireless service support node is received described activation packet data protocol context request message, and therefrom obtains called number;Described service general bag wireless service support node carries out number analysis to described called number, and meanwhile described service general bag wireless service support node sends to described gateway general bag wireless service support node and creates packet data protocol context request message;After described gateway general bag wireless service support node is received described establishment packet data protocol context request message, inquiring position server master site register, the called subscriber is authenticated, send the establishment packet data protocol context request behind the authentication success and respond to described service general bag wireless service support node;Described service general bag wireless service support node obtains called subscriber's positional information and routing iinformation from described location server master site register, send the paging indication first time to the called subscriber behind analysis result that obtains described called number and called subscriber's positional information and routing iinformation;Revise beep-page message, the prompting of additional called service in the paging reason of described beep-page message, the described Non-Access Stratum signaling of handling again connects foundation and reciprocal process finishes;Then, set the type of described beep-page message according to called subscriber's idle condition, and the paging service of the different paging types of separate processes.
- 2 methods according to claim 1, it is characterized in that, the type of described setting beep-page message advances to described RAB to called subscriber's paging indication and sets up before the process and the paging service of the different paging types of separate processes specifically comprises sending:In the described paging indication first time, if described called subscriber is in idle state, then setting described beep-page message is type one, is type two otherwise set described beep-page message;After the called subscriber receives the described paging indication first time, if described beep-page message is a type one, then carry out called subscriber's Radio Resource control connection, finish paging to described called subscriber, if described beep-page message is a type two, then temporarily do not deal with, indicate to described called subscriber but after sending Session initiation Protocol invitation, send paging for the second time by described calling terminal, described called subscriber receives the Non-Access Stratum signaling that promptly begins described to carry out the called subscriber after the paging indication for the second time and connects and set up and mutual and RAB is set up process, finishes the paging to described called subscriber.
- 3 methods according to claim 1 is characterized in that, described activation packet data protocol context request message comprises access node title, packet data protocol address, service quality and called number.
- 4 methods according to claim 1 is characterized in that, described number analysis can be in the inter-process of service general bag wireless service support node.
- 5 methods according to claim 1 is characterized in that, described number analysis can be delivered to mobile main dispatching centre to described number by service general bag wireless service support node and handle.
- 6 methods according to claim 1, it is characterized in that described called service comprises interactive entertainment business, emergency voice calls business, wireless push talk business, Basic voice call business, basic grouped territory business, flows business and interactive service substantially.
- 7 methods according to claim 1 is characterized in that, the local terminal entity of described travelling carriage comprises Radio Link Controller, media access controller and the physical layer of local terminal.
- 8 methods according to claim 1 is characterized in that, the local terminal entity of described radio network controller comprises the Radio Link Controller and the media access controller of local terminal.
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| CN101127668B (en) * | 2007-09-12 | 2010-12-29 | 中兴通讯股份有限公司 | Method for perfecting transaction processing in access network process |
| CN101848536B (en) * | 2010-04-28 | 2012-09-05 | 新邮通信设备有限公司 | Radio resource control connection reestablishment method and base station |
| CN103139718B (en) * | 2013-03-25 | 2015-11-18 | 中国人民解放军重庆通信学院 | The method of a kind of PoC time delay optimization process and device |
| WO2019104526A1 (en) * | 2017-11-29 | 2019-06-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Network nodes, paging network node and methods performed therein for handling communication |
| CN110519781B (en) * | 2019-08-28 | 2022-09-16 | 深圳市万普拉斯科技有限公司 | RRC time limit adjusting method and device, mobile terminal and readable storage medium |
| CN112543173B (en) * | 2019-09-23 | 2022-03-18 | 维沃移动通信有限公司 | IMS information transmission method, terminal, device and equipment |
| CN112118544B (en) * | 2020-08-18 | 2022-04-15 | 杭州叙简科技股份有限公司 | PoC signaling processing method, apparatus, electronic device and medium |
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