CN104902436A - VoLTE scene-based method for acquiring user location information at network side - Google Patents
VoLTE scene-based method for acquiring user location information at network side Download PDFInfo
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- CN104902436A CN104902436A CN201510210363.2A CN201510210363A CN104902436A CN 104902436 A CN104902436 A CN 104902436A CN 201510210363 A CN201510210363 A CN 201510210363A CN 104902436 A CN104902436 A CN 104902436A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
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Abstract
The invention relates to a VoLTE scene-based method for acquiring user location information at a network side. With the method of the invention adopted, the acquisition of the user location information can be realized, and at the same time, call through delay can be decreased, and therefore, user experience can be improved. According to the specific technical schemes of the method of the invention, a proxy call session control functional unit (P-CSCF), a policy and charging rule functional unit (PCRF) and a policy and charging execution functional unit (PCEF) are provided. The method is characterized in that: the PCEF detects user location information in real time and notifies the PCRF; and the PCRF saves the user location information locally; and the P-CSCF acquires the user location information from the PCRF after receiving a call request. The PCEF detects whether the user access location information changes in real time, and when the user access location information changes, the PCEF notifies the PCRF in real time.
Description
Technical field
The present invention relates to the communications field, under relating more specifically to a kind of scene based on Long Term Evolution access network, IP Multimedia System is the implementation method that the service request such as user speech obtain user's accessing position information.
Background technology
VoLTE (Voice over LTE) refers to that terminal use is through long-term evolving network (Long Term Evolution, be called for short LTE) access packet-based core networks (Evolved Packet Core, be called for short EPC), again by IP Multimedia System network (IP Multimedia Subsystem, be called for short IMS) for user provides high-quality sound, video traffic.VoLTE on 4G network, realizes data and the unification of speech business under consolidated network without the need to the whole service bearer of 2G/3G network.LTE is a kind of access network, and EPC provides carrying for voice-and-data business, and IMS network then provides the basic supplementary service of voice/video.
It is exactly that to connect the stand-by period shorter that VoLTE technology brings that user the most directly experiences, and more high-quality, more natural voice and video telephone effect.VoLTE and 2G, 3G voice call are essentially different, VoLTE because adopt high-resolution encoding and decoding technique voice quality comparatively 2G, 3G voice call can improve about 30%.VoLTE is that user brings lower call through time delay (to the time of called terminal ringing after caller dialing), falls 50%, VoLTE connect time delay probably in 1-2 second than 3G, and the 2G epoch connect time delay in 6-7 second.
In VoLTE business, some scene of IMS network needs to perform special strategy according to the accessing position information of user, such as: it is preferential that (1) operator needs to realize rate to the speech business of certain Administrative Area user; (2) EC needs to know the particular location that user carries out emergence call service; (3) customer complaint audio call to set up after failure or call setup call drop suddenly, and operator needs to know user's accessing position information, to improve access network.
The accessing position information of user, not only comprises the type of access network, also needs to comprise the concrete positional information such as cell information, comprising: Tracking Area Identifier RAI, Cell Global Identity CGI, Service Area Identifier SAI.RAI is by Global Mobile Country Code (Mobile Country Code, be called for short MCC) and mobile service network code (Mobile Network Code, be called for short MNC) and location area code (Location Area Code, be called for short LAC) and Routing Area code (Route Area Code, be called for short RAC) composition, for the Routing Area of one or more community of unique mark composition.CGI is then by MCC/MNC/ cell ID (Cell Identity is called for short CI) composition, Shi Yige community unique identification in the world.SAI is made up of, for identifying one or more cell information of same position MCC/MNC/LAC and service region code (Service Area Code is called for short SAC).
The positional information of carrying due to terminal is insincere, therefore 3rd Generation Partnership Project (3rd Generation Partnership Project is called for short 3GPP) has defined the method that VoLTE business network side obtains user's accessing position information.
The VoLTE business network side of 3GPP definition obtains the Major Systems framework of customer position information with reference to figure 1, comprise following entity: (101) application layer (Application Function, be called for short AF) network entity, be often referred to proxy call conversation control function entity in IMS network (Proxy Call Session Control Function is called for short P-CSCF); (102) policy charging rule function (Policy and Charging Rule Function is called for short PCRF), is responsible for the acquisition of policy control and charging regulation and notifies PCEF; (103) policy and charging enforcement function (Policy and Charging Enforcement Function is called for short PCEF), is responsible for the execution of policy control, also comprises the acquisition of customer position information; (104) access network, generally includes the entities such as the NodeB (Evolved Node B is called for short eNodeB) of Mobility Management Entity (Mobility Management Entity is called for short MME) and evolution.
VoLTE business network side obtains the basic procedure of customer position information: P-CSCF by Rx interface to PCRF inquiring user accessing position information, PCRF is to PCEF inquiring user accessing position information, after PCEF obtains customer position information from access network, inform PCRF by Gx interface message, and then the positional information of user is informed P-CSCF by PCRF.The P-CSCF of such IMS network just obtains the positional information of user, and transmits in the ims network, so that other network element of IMS network obtains and uses this positional information.For Calling Side flow process, the flow process of the acquisition positional information of 3GPP definition as shown in Figure 2, comprises following committed step:
S201, P-CSCF receive invite request corresponding to voice/video calling;
S202, P-CSCF initiates Diameter AAR (AA-Request to PCRF, be called for short AAR) request, this request is mainly used in the foundation of dedicated bearing, carry the characteristic value of Specific-Action to (Attribute Value Pair in request message simultaneously, be called for short AVP), the content of AVP extends this as " ACCESS_NETWORK_INFO_REPORT ", represents that PCRF needs the accessing position information of report of user.Comprise Required-Access-Info AVP in AAR request simultaneously, represent that P-CSCF subscribes to positional information to PCRF;
S203, PCRF return Diameter AAA (AA-Answer is called for short AAA) response to P-CSCF.Carried the access style of user in response message by " IP-CAN-Type " or " RAT-Type ", as 3/4G network attributes such as GERAN/UTRAN-FDD/UTRAN-TDD/E-UTRAN-FDD/E-UTRAN-TDD, but there is no concrete cell identity information.Only according to access style, IMS network cannot perform the relevant strategy of specific position;
S204, PCRF send Diameter RAR request (Re-Auth-Request is called for short RAR) to PCEF, and instruction PCEF needs reporting position information;
S205, PCEF return Diameter RAA to PCRF and respond (Re-Auth-Answer is called for short RAA), as the response to request;
S206, PCEF and access network obtain user's accessing position information alternately, and user's accessing position information generally includes: Cell Global Identity CGI or Service Area Identifier SAI or Tracking Area Identifier RAI.
S207, PCEF sends Diameter CCR to PCRF and asks (Credit-Control-Request, be called for short CCR), by 3GPP-User-Location-Info and/or User-Location-Info-Time AVP in request message, carry the positional information that user is concrete;
S208, PCRF return Diameter CCA to PCEF and respond (Credit-Control-Answer is called for short CCA), as the response of CCR request;
S209, PCRF send Diameter RAR request to P-CSCF, carry the concrete positional information of user in request message by 3GPP-User-Location-Info and/or 3GPP-SGSN-MCC-MNC AVP;
S210, P-CSCF return Diameter RAA to PCRF and respond;
S211, the customer position information that P-CSCF obtains from PCRF according to S209 step, structure P-Access-Network-Info head field is also inserted in invite request message, user's accessing position information is contained in this field, P-CSCF by invite request forward to follow-up network element so that other network elements use customer position information to perform corresponding strategy.
The network side of current 3GPP definition obtains the method for customer position information, there are serious problems, call through time delay can be added exactly, because invite message related to calls is through P-CSCF network element, P-CSCF network element needs inquiry PCRF, PCRF and then inquiry PCEF, P-CSCF to need etc. after customer position information to be obtained could forwarded call request, this must need to consume certain hour, adds call through time delay.VoLTE technology one spotlight is exactly lower call through time delay, and the method for the customer position information of network side acquisition at present will inevitably increase call through time delay, affects customer service and experiences.
Summary of the invention
The invention provides a kind of network side based on VoLTE scene and obtain the method that customer position information is provided, both achieved the acquisition of customer position information, and also reduced call through time delay simultaneously, thus improve customer service experience.Concrete technical scheme is as follows:
A kind of network side based on VoLTE scene obtains the method for customer position information, comprise Proxy Call Session Control Function unit P-CSCF, strategy and charging rule functions unit PCRF, strategy and charge execution function unit PCEF, it is characterized in that: PCEF detects customer position information in real time and notifies PCRF; PCRF preserves customer position information in this locality; P-CSCF obtains customer position information to PCRF after receiving call request.
Further: whether PCEF detects user's accessing position information in real time and change, when user's accessing position information changes, PCEF real-time informing PCRF.
Further: in user's accessing position information, access network type comprises GERAN, UTRAN-FDD, UTRAN-TDD, E-UTRAN-FDD, E-UTRAN-TDD type; Also comprise the positional information that Tracking Area Identifier RAI, Cell Global Identity CGI, Service Area Identifier SAI are concrete.
Further: PCRF preserves one or more customer position information in this locality;
Further: after P-CSCF receives call request, when obtaining customer position information directly to PCRF, PCRF is directly responded by Diameter AAA, informs P-CSCF customer position information, and customer position information to insert in call request and is transmitted to follow-up network element by P-CSCF.
Further: call request comprises invite request, voice call request, video call request, registration request, note request, subscribe request and other SIP request.
Further: Diameter AAA needs in responding to expand new AVP, to carry positional information, expanding new AVP can be 3GPP-User-Location-InfoAVP and/or 3GPP-SGSN-MCC-MNC AVP in whole new definition AVP or multiplexing RAR.
Further: P-CSCF carries user's accessing position information by P-Access-Network-Info head field.
Specific implementation step is as follows:
S1, PCRF send RAR request to PCEF, booking reader's positional information;
S2, PCEF return RAA response to PCRF;
Alternately, acquisition customer position information or perception user accessing information there occurs change or access network proactive notification PCEF customer position information changes for S3, PCEF and access network;
S4, PCEF send CCR request to PCRF, carry customer position information in request message by 3GPP-User-Location-Info and/or 3GPP-SGSN-MCC-MNC AVP;
S5, PCRF preserve customer position information in this locality, return CCA response to PCEF simultaneously;
S6, P-CSCF receive Calling Side invite call request;
S7, P-CSCF send AAR request to PCRF, set up dedicated bearing, indicate PCRF to return customer position information in Specific-Action AVP simultaneously;
S8, PCRF constructs to P-CSCF and sends AAA response, new AVP is expanded in AAA response message, to carry local user's more specific location information of preserving, 3GPP-User-Location-InfoAVP and/or the 3GPP-SGSN-MCC-MNC AVP in AAA response expansion new AVP or multiplexing RAR;
S9, P-CSCF obtains customer position information from PCRF, structure P-Access-Network-Info head field is also inserted in invite call request message, and invite call request is forwarded to follow-up network element by P-CSCF, so that follow-up network element uses customer position information to perform corresponding strategy.
Technical scheme feature is: PCEF detects customer position information in real time and notifies PCRF, and when receiving invite call request as P-CSCF and obtain positional information to PCRF, PCRF directly feeds back the local customer position information preserved so that P-CSCF uses.
By technique scheme, can realize network side and obtain customer position information, the program is without the need to waiting for that PCRF/PCEF obtains the process of positional information simultaneously, thus shortens call through time delay, substantially increases business experience and the impression of user.
Accompanying drawing explanation
Fig. 1 is that known VoLTE customer position information obtains system architecture diagram;
Fig. 2 is that known VoLTE obtains customer position information flow chart;
Fig. 3 is that the present invention improves VoLTE acquisition customer position information scheme committed step figure;
Fig. 4 is that the present invention improves VoLTE acquisition customer position information protocol procedures figure;
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, by the following examples also with reference to accompanying drawing, the present invention is described in more detail.
With reference to figure 3:
Whether S301, PCEF detect user's accessing position information in real time and change, and when user's accessing position information changes, PCEF needs real-time informing to PCRF;
Further, in described step, the accessing position information of user comprises access network type, and access network type comprises the types such as GERAN/UTRAN-FDD/UTRAN-TDD/E-UTRAN-FDD/E-UTRAN-TDD; User's accessing position information comprises the concrete positional information such as Tracking Area Identifier RAI, Cell Global Identity CGI, Service Area Identifier SAI.
After S302, PCRF receive the location information notification of user, need to be kept at this locality, obtain in order to subsequent applications layer network element and use;
Further, in described step, PCRF according to carrier policy, can preserve one or more customer position information;
S303, application layer network element, as P-CSCF, after receiving invite call request, when obtaining positional information directly to PCRF, PCRF is directly responded by AAA, inform the positional information of P-CSCF user, P-CSCF positional information is inserted invite request in and be transmitted to follow-up network element;
Fig. 4 is the flow chart that the present invention improves that VoLTE obtains the technical scheme of customer position information.PCEF is by detecting the change of customer position information in real time, and notify PCRF in time, call out like this for Client-initiated VoLTE, P-CSCF network element can be inquired about PCRF in time and obtain the positional information of user.Thus achieve network side acquisition positional information, reduce PCRF simultaneously and inquire about the process that PCEF and PCEF inquires about access network positional information, thus shorten VoLTE call through time delay.Concrete process description is as follows:
S401, PCRF send RAR request to PCEF, booking reader's positional information;
S402, PCEF return RAA response to PCRF;
Alternately, acquisition customer position information or perception user accessing information there occurs change for S403, PCEF and access network;
S404, PCEF to PCRF send give CCR request, in request message by 3GPP-User-Location-Info and or 3GPP-SGSN-MCC-MNC AVP carry customer position information;
S405, PCRF preserve positional information in this locality, return CCA response to PCEF simultaneously;
S406, P-CSCF receive Calling Side invite and ask;
S407, P-CSCF send AAR request to PCRF, require to set up dedicated bearing, need instruction PCRF to return customer position information in Specific-Action AVP simultaneously;
S408, PCRF construct to P-CSCF and send AAA response, need to expand new AVP in AAA response message, to carry the local customer position information preserved.AAA response can expand 3GPP-User-Location-InfoAVP in new AVP or multiplexing RAR and or 3GPP-SGSN-MCC-MNC AVP.
S409, P-CSCF obtains customer position information from PCRF, structure P-Access-Network-Info head field is also inserted in invite request message, P-CSCF by invite request forward to follow-up network element so that follow-up network element to use customer position information to perform corresponding tactful.
In sum, adopt the inventive method, network side can be realized and obtain customer position information, shorten call through time delay simultaneously, substantially increase business experience and the impression of user.Above example only illustrates calling procedure, called flow and calling procedure similar, technique scheme is equally applicable to called flow, repeats no more.
The above, be only preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the method for the acquisition of the network side based on a VoLTE scene customer position information, comprise Proxy Call Session Control Function unit P-CSCF, strategy and charging rule functions unit PCRF, strategy and charge execution function unit PCEF, it is characterized in that: PCEF detects customer position information in real time and notifies PCRF; PCRF preserves customer position information in this locality; P-CSCF obtains customer position information to PCRF after receiving call request.
2. as claimed in claim 1 based on the method for the network side acquisition customer position information of VoLTE scene, it is characterized in that: whether PCEF detects user's accessing position information in real time and change, when user's accessing position information changes, PCEF real-time informing PCRF.
3., as claimed in claim 2 based on the method for the network side acquisition customer position information of VoLTE scene, it is characterized in that: in user's accessing position information, access network type comprises GERAN, UTRAN-FDD, UTRAN-TDD, E-UTRAN-FDD, E-UTRAN-TDD type; Also comprise the positional information of Tracking Area Identifier RAI, Cell Global Identity CGI, Service Area Identifier SAI.
4., as claimed in claim 1 based on the method for the network side acquisition customer position information of VoLTE scene, it is characterized in that: PCRF preserves one or more customer position information in this locality.
5. as claimed in claim 1 based on the method for the network side acquisition customer position information of VoLTE scene, it is characterized in that: after P-CSCF receives call request, when obtaining customer position information directly to PCRF, PCRF is directly responded by Diameter AAA, inform P-CSCF customer position information, customer position information to insert in call request and is transmitted to follow-up network element by P-CSCF.
6., as claimed in claim 5 based on the method for the network side acquisition customer position information of VoLTE scene, it is characterized in that: call request comprises invite request, voice call request, video call request, registration request, note request, subscribe request and other SIP request.
7. as claimed in claim 5 based on the method for the network side acquisition customer position information of VoLTE scene, it is characterized in that: Diameter AAA needs in responding to expand new AVP, to carry concrete positional information, expanding new AVP can be 3GPP-User-Location-InfoAVP and/or 3GPP-SGSN-MCC-MNC AVP in whole new definition AVP or multiplexing RAR.
8., as claimed in claim 5 based on the method for the network side acquisition customer position information of VoLTE scene, it is characterized in that: P-CSCF carries user's accessing position information by P-Access-Network-Info head field.
9., as claimed in claim 1 based on the method for the network side acquisition customer position information of VoLTE scene, it is characterized in that comprising the steps:
S1, PCRF send RAR request to PCEF, booking reader's positional information;
S2, PCEF return RAA response to PCRF;
Alternately, acquisition customer position information or perception user accessing information there occurs change or access network proactive notification PCEF customer position information changes for S3, PCEF and access network;
S4, PCEF to PCRF send CCR request, in request message by 3GPP-User-Location-Info and or 3GPP-SGSN-MCC-MNC AVP carry customer position information;
S5, PCRF preserve customer position information in this locality, return CCA response to PCEF simultaneously;
S6, P-CSCF receive Calling Side invite call request;
S7, P-CSCF send AAR request to PCRF, set up dedicated bearing, indicate PCRF to return customer position information in Specific-Action AVP simultaneously;
S8, PCRF constructs to P-CSCF and sends AAA response, new AVP is expanded in AAA response message, to carry the local customer position information preserved, 3GPP-User-Location-InfoAVP and/or the 3GPP-SGSN-MCC-MNC AVP in AAA response expansion new AVP or multiplexing RAR;
S9, P-CSCF obtains customer position information from PCRF, structure P-Access-Network-Info head field is also inserted in invite call request message, and invite call request is forwarded to follow-up network element by P-CSCF, so that follow-up network element uses customer position information to perform corresponding strategy.
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| CN105916131A (en) * | 2016-03-30 | 2016-08-31 | 联想(北京)有限公司 | Access control method and access control deice |
| CN107548077B (en) * | 2016-06-24 | 2020-07-07 | 华为技术有限公司 | Position information acquisition method, device and system |
| WO2017219754A1 (en) * | 2016-06-24 | 2017-12-28 | 华为技术有限公司 | Position information obtaining method, device and system |
| CN107548077A (en) * | 2016-06-24 | 2018-01-05 | 华为技术有限公司 | A kind of location information acquisition method, equipment and system |
| CN107800544A (en) * | 2016-08-30 | 2018-03-13 | 中兴通讯股份有限公司 | Customer position information treating method and apparatus |
| CN107800544B (en) * | 2016-08-30 | 2022-09-09 | 中兴通讯股份有限公司 | User position information processing method and device |
| CN108600937B (en) * | 2017-03-13 | 2020-12-18 | 中国移动通信集团公司 | User position information acquisition method and server |
| CN108600937A (en) * | 2017-03-13 | 2018-09-28 | 中国移动通信集团公司 | A kind of customer position information acquisition methods and server |
| CN111212376A (en) * | 2018-11-21 | 2020-05-29 | 中国移动通信集团河北有限公司 | Method, apparatus, device and medium for correlating real-time location and voice quality results |
| CN111212376B (en) * | 2018-11-21 | 2021-06-11 | 中国移动通信集团河北有限公司 | Method, apparatus, device and medium for correlating real-time location and voice quality results |
| CN111263292A (en) * | 2018-11-30 | 2020-06-09 | 中国电信股份有限公司 | Communication service processing method, device, system and computer readable storage medium |
| CN111263292B (en) * | 2018-11-30 | 2021-07-27 | 中国电信股份有限公司 | Communication service processing method, device, system and computer readable storage medium |
| CN109688548A (en) * | 2018-12-11 | 2019-04-26 | 惠州Tcl移动通信有限公司 | VOLTE frequency range sharing method, server, mobile terminal and storage medium |
| CN112469114A (en) * | 2019-09-09 | 2021-03-09 | 成都鼎桥通信技术有限公司 | Session Initiation Protocol (SIP) registration method and device |
| CN112469114B (en) * | 2019-09-09 | 2022-11-18 | 成都鼎桥通信技术有限公司 | Session initial protocol registration method and device |
| CN114095891A (en) * | 2020-08-25 | 2022-02-25 | 中国移动通信集团吉林有限公司 | VoLTE charging method and device and electronic equipment |
| CN114095890A (en) * | 2020-08-25 | 2022-02-25 | 中国移动通信集团吉林有限公司 | VoLTE user position determining method and device and electronic equipment |
| CN114095891B (en) * | 2020-08-25 | 2023-08-15 | 中国移动通信集团吉林有限公司 | VoLTE charging method and device and electronic equipment |
| CN114095890B (en) * | 2020-08-25 | 2023-09-19 | 中国移动通信集团吉林有限公司 | VoLTE user position determining method and device and electronic equipment |
| CN114125993A (en) * | 2020-08-31 | 2022-03-01 | 中国电信股份有限公司 | Call access processing method, network element, communication system and storage medium |
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Application publication date: 20150909 |