CN110708274A - Domain selection method, device and storage medium of called service - Google Patents
Domain selection method, device and storage medium of called service Download PDFInfo
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- CN110708274A CN110708274A CN201810752981.3A CN201810752981A CN110708274A CN 110708274 A CN110708274 A CN 110708274A CN 201810752981 A CN201810752981 A CN 201810752981A CN 110708274 A CN110708274 A CN 110708274A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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Abstract
The embodiment of the invention discloses a domain selection method, a domain selection device and a storage medium of a called service, belonging to the technical field of communication. The method comprises the following steps: when processing the call termination service, determining the domain where the called user is located; and selecting a call processing flow corresponding to the domain to process the call termination service so that the call termination service directly completes the connection and paging of the called user in the domain. By adopting the embodiment of the invention, if the called user resides in the CS domain, the calling-terminating service can be directly processed in the CS domain without anchoring the call to the IMS domain, thereby avoiding the signaling detour problem caused by anchoring the call to the IMS domain and then returning the call to the CS domain when the called user is in the CS domain.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a domain selection method, a domain selection device and a storage medium of a called service.
Background
VoLTE, Voice Over LTE, is a Voice service based on IMS (IP Multimedia Subsystem). After the VoLTE is deployed, a domain selection scheme is deployed to implement the called voice service of the VoLTE user.
A Domain selection scheme in the prior art is an anchor Domain selection scheme, and the scheme is that a VoLTE user signs up an anchor T-CSI (called subscriber Subscription Information), a called service triggered by the user in a CS Domain (Circuit switched Domain) is anchored to an IMS (IP Multimedia Subsystem) Domain through an anchor SCP (service control Points), and all services are triggered by the IMS Domain. The specific process is as follows:
when a call is entered, the HLR/HSS returns the anchored T-CSI to a Gateway Mobile services Switching Center (GMSC), the GMSC triggers the T-CSI to a Service Control Point (SCP), and the SCP anchors the call to the IMS. All services of a user are completed in an IMS domain, and after the Service is completed, an SCC (Service Control Center) AS (application server) performs domain selection, and pages and connects the user according to a result of the domain selection.
However, when the network is in the initial stage of 4G/IMS construction, the 4G coverage is not complete, the IMS user usually resides in the CS domain, and after the anchor domain selection scheme is adopted, the call is first anchored to the IMS domain, and after the SCC AS performs domain selection, the call is returned to the CS domain, so that there is a large amount of signaling detour in the whole call flow.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide a domain selection method, an apparatus, and a storage medium for a called service, so as to solve the problem of a large amount of signaling detour caused by an anchoring scheme for selecting a domain of a VoLTE service in the prior art when a 4G network is not fully covered and an IMS user is still resident in a CS domain.
The technical scheme adopted by the embodiment of the invention for solving the technical problems is as follows:
according to a first aspect of the embodiments of the present invention, there is provided a domain selection method for a called service, the method including:
when processing the call termination service, determining the domain where the called user is located;
and selecting a call processing flow corresponding to the domain to process the call termination service so that the call termination service directly completes the connection and paging of the called user in the domain.
According to a second aspect of the embodiments of the present invention, there is provided a domain selection apparatus for a called service, the apparatus including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program realizing the steps according to the first aspect when executed by the processor.
According to a third aspect of embodiments of the present invention, there is provided a storage medium storing one or more programs executable by one or more processors to perform the steps of the first aspect.
The invention relates to a domain selection method, a device and a storage medium of called service, when processing the calling-terminating service, an HLR/HSS firstly determines the domain where the called user is located, then selects the call processing flow corresponding to the domain to process the calling-terminating service, so that the calling-terminating service directly completes the connection and paging of the called user in the domain.
Drawings
Fig. 1 is a flowchart of a domain selection method for a called service according to an embodiment of the present invention;
fig. 2 is a flowchart of an application scenario of a domain selection method for a called service according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a module for domain selection of a called service according to a second embodiment of the present invention.
The implementation, functional features and advantages of the objects of the embodiments of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the embodiments of the present invention clearer and more obvious, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of the invention and are not limiting of the embodiments of the invention.
An embodiment of the present invention provides a domain selection method for a called service, which is applicable to an HLR/HSS, and please refer to fig. 1, where the method includes:
step S101, when processing the terminal call service, determining the domain where the called user is located;
step S102, selecting the call processing flow corresponding to the domain to process the call-terminating service, so that the call-terminating service directly completes the connection and paging of the called user in the domain.
In practical application, logic judgment can be added in HLR/HSS to determine the domain where the called user is located, and the connection and paging of the called user can be directly transferred to the domain where the called user is located for processing, so that the purpose of reducing signaling roundabout is achieved.
In one possible solution, step S101 includes:
and determining the actual registration domain of the called user, wherein the actual registration domain is the domain where the called user is located.
In one possible implementation, step S102 includes:
when the called user is in the CS domain, the terminating call service is processed according to the call flow of the CS domain, and the connection and paging of the called user are completed in the CS domain;
when the called user is in the IMS domain, the call-ending service is anchored to the IMS domain, and the connection and paging of the called user are completed in the IMS domain.
In a possible solution, before determining the domain where the called user is located in step S101, the method further includes:
and the receiving gateway mobile switching center GMSC acquires the routing information request of the called user.
In one possible solution, the selecting the call processing flow corresponding to the domain to process the terminating service includes:
when the called user is in CS domain, returning the roaming number of the called user to the GMSC;
and when the called user is in the IMS domain, returning anchoring terminal call intelligent service subscription information T-CSI to the GMSC.
In one possible solution, before determining the domain where the called user is located, the method further includes:
judging whether the called user signs an anchoring T-CSI;
if yes, executing the step of determining the domain where the called user is located.
In one possible implementation, the method further comprises:
judging whether the called user is configured with a signaling optimization strategy;
if yes, executing the step of determining the domain where the called user is located.
In practical application, a signaling optimization policy may be configured on a per-user basis, that is, whether to enable an optimization policy for reducing signaling detour is configured on a per-user basis, the optimization policy is configured to be enabled for a user who resides in the CS domain, and the optimization policy is configured not to be enabled for a user who resides in the IMS domain, so as to achieve the purpose of precise control. Specifically, the residence time or residence times of the user in the CS domain and the IMS domain may be counted, and then whether the user needs to be configured to the optimization policy is determined according to a preset algorithm. In practical application, the configuration of the optimization strategy can cancel, reserve or set the signaling optimization strategy of the user according to the statistical result every a preset time period.
Referring to fig. 2, a flowchart of an application scenario of the method of the present embodiment is shown, where the method includes:
step S201, when the calling party initiates a call, the GMSC inquires the routing information of the called party to the HLR/HSS.
Step S202, the HLR/HSS judges whether the called user signs the anchoring T-CSI, if so, step S203 is executed, otherwise, step S205 is executed.
Step S203, the HLR/HSS determines whether the called user is currently registered in the IMS domain, if so, step S204 is executed, otherwise, step S205 is executed.
Step S204, HLR/HSS returns anchoring T-CSI to GMSC.
In practical application, after this step, the GMSC triggers T-CSI to the SCP, which anchors the call to the IMS, and the service of the called user is processed in the IMS domain.
Step S205, HLR/HSS returns the roaming number of the called user to GMSC.
When the called user is in the CS domain, the HLR/HSS directly processes the call according to the call flow of the CS domain, and completes the connection and paging of the user in the CS domain, thereby overcoming the signaling detour problem brought by anchoring the call to the IMS domain and then returning the call to the CS domain when the called user is in the CS domain in the prior art.
In the domain selection method of the called service of the embodiment, when processing the terminating service, the HLR/HSS first determines the domain where the called user is located, and then selects the call processing flow corresponding to the domain to process the terminating service, so that the terminating service directly completes the connection and paging of the called user in the domain.
On the basis of the foregoing embodiment, a second embodiment of the present invention provides a domain selection apparatus for a called service, the apparatus is applied to an HLR/HSS, please refer to fig. 3, and the apparatus includes: a memory 301, a processor 302 and a computer program 303 stored on the memory and executable on the processor, which computer program when executed by the processor implements the method steps according to embodiment one.
In the domain selection device of the called service of the embodiment, when processing the terminating service, the HLR/HSS first determines the domain where the called user is located, and then selects the call processing flow corresponding to the domain to process the terminating service, so that the terminating service directly completes the connection and paging of the called user in the domain.
On the basis of the foregoing embodiment, a third embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, and the program, when running, controls a device on which the storage medium is located to perform the operations according to the first embodiment.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and are not intended to limit the scope of the embodiments of the invention. Any modifications, equivalents and improvements that may occur to those skilled in the art without departing from the scope and spirit of the embodiments of the present invention are intended to be within the scope of the claims of the embodiments of the present invention.
Claims (9)
1. A domain selection method of called service is suitable for a home location register/home subscriber server, and the method comprises the following steps:
when processing the call termination service, determining the domain where the called user is located;
and selecting a call processing flow corresponding to the domain to process the call termination service so that the call termination service directly completes the connection and paging of the called user in the domain.
2. The method for selecting domain of called service as claimed in claim 1, wherein said determining the domain where the called user is located comprises:
and determining the actual registration domain of the called user, wherein the actual registration domain is the domain where the called user is located.
3. The method of claim 1, wherein the selecting the call processing flow corresponding to the domain to process the terminating call service comprises:
when the called user is in the CS domain, the terminating call service is processed according to the call flow of the CS domain, and the connection and paging of the called user are completed in the CS domain;
and when the called user is in an IMS domain, anchoring the call termination service to the IMS domain, and completing the connection and paging of the called user in the IMS domain.
4. The method for selecting domain of called service as claimed in claim 1, wherein before determining the domain where the called user is located, the method further comprises:
and the receiving gateway mobile switching center GMSC acquires the routing information request of the called user.
5. The method of claim 4, wherein the selecting the call processing flow corresponding to the domain to process the terminating call service comprises:
when the called user is in the CS domain, returning the roaming number of the called user to the GMSC;
and when the called user is in the IMS domain, returning anchoring terminal call intelligent service subscription information T-CSI to the GMSC.
6. The method for selecting domain of called service as claimed in claim 1, wherein before determining the domain where the called user is located, the method further comprises:
judging whether the called user signs an anchoring T-CSI;
if yes, executing the step of determining the domain where the called user is located.
7. The method for domain selection for a called service of claim 1, wherein the method further comprises:
judging whether the called user is configured with a signaling optimization strategy or not;
if yes, executing the step of determining the domain where the called user is located.
8. A domain selection apparatus, home location register/home subscriber server, for a called service, the apparatus comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of any of claims 1 to 7.
9. A storage medium storing one or more programs, the one or more programs being executable by one or more processors to perform the steps of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810752981.3A CN110708274A (en) | 2018-07-10 | 2018-07-10 | Domain selection method, device and storage medium of called service |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810752981.3A CN110708274A (en) | 2018-07-10 | 2018-07-10 | Domain selection method, device and storage medium of called service |
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| CN110708274A true CN110708274A (en) | 2020-01-17 |
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| CN201810752981.3A Withdrawn CN110708274A (en) | 2018-07-10 | 2018-07-10 | Domain selection method, device and storage medium of called service |
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Application publication date: 20200117 |