CN109905415B - Method for acquiring user position information, network side equipment, user terminal and system - Google Patents
Method for acquiring user position information, network side equipment, user terminal and system Download PDFInfo
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Abstract
The disclosure provides a method, network side equipment, a user terminal and a system for acquiring user position information. The method comprises the following steps: sending a subscription message to a user terminal, wherein the subscription message comprises a user position information event package, and the user position information event package represents that a network side device requests to acquire position information of the user terminal; obtaining current position information of the user terminal after receiving the first notification message, and obtaining changed position information of the user terminal after receiving the second notification message; and the user terminal returns a first notification message to the network side equipment after receiving the subscription message, wherein the first notification message contains the current position information of the user terminal, and sends a second notification message to the network side equipment under the condition that the position information of the user terminal changes, and the second notification message contains the changed position information of the user terminal. The purpose of obtaining the user position information is achieved.
Description
Technical Field
The present disclosure relates to the field of mobile communications technologies, and in particular, to a method, a network side device, a user terminal, and a system for acquiring user location information.
Background
VoLTE (Voice over LTE, Voice over LTE based Long Term Evolution) is a telecommunications-level basic Voice service based on LTE (Long Term Evolution) access, EPC (Evolved Packet Core) Core network, and IMS network, which is carried in a Packet network. The Voice over WiFi (Voice over WiFi, WiFi-based Voice service) is a Voice service carried in a packet network based on a WiFi wireless access, an EPC core network and an IMS network. VoWiFi can be used as an effective supplement to VoLTE service, and voice calls of users are solved by utilizing coverage of a WiFi network in an area with insufficient LTE coverage. Seamless handover between VoLTE and VoWiFi calls can be achieved.
Some services, such as emergency call type services, require location information of the user to be obtained. The existing methods for acquiring the position information of the VoLTE/VoWiFi user mainly comprise the following two types:
(1) the terminal provides user position information: the terminal inserts the current location information (such as cell-id) of the user by using the PANI (P-Access-Network-Info, Access Network information) header field of the INVITE message (calling side)/1 xx or 2xx response message (called side)/BYE message (calling/called side), and brings the information to the IMS (IP Multimedia Subsystem) core Network/service platform.
(2) The network provides user location information: the PCEF (Policy and Charging Enforcement Function) detects the user location information in real time and notifies the PCRF (Policy and Charging Rules Function); the PCRF locally stores user location information; a network element P-CSCF (Proxy-Call Session Control Function) of the IMS requests user location information from the PCRF/PGW after receiving an INVITE/1xx/2xx/BYE message sent from the terminal, and fills the obtained information in a PANI header field, bringing it to an IMS core network/service platform. The method can transmit the user position information acquired by the network side to the IMS core network/service platform only when the call is initiated.
The above-mentioned obtaining mode of the location information, no matter terminal providing or network providing, is limited to reporting the location information of the user to the IMS core network/service platform through the corresponding message in the VoLTE/VoWiFi call setup or teardown phase for the use of the relevant service. However, in other cases, the IMS core network/service platform cannot acquire the location information of the user. For example, when a service needs to use the location information of a user during a call or even in an idle state (for example, tracking and positioning the user during the call), the existing method cannot acquire the location information of the user.
Disclosure of Invention
The inventors of the present disclosure have found that there are problems in the above-mentioned prior art, and thus have proposed a new technical solution to at least one of the problems.
According to an aspect of the embodiments of the present disclosure, there is provided a method for acquiring user location information, including: sending a subscription message to a user terminal, wherein the subscription message comprises a user position information event package, and the user position information event package represents that a network side device requests to acquire position information of the user terminal; obtaining the current position information of the user terminal after receiving a first notification message returned from the user terminal, and obtaining the changed position information of the user terminal after receiving a second notification message returned from the user terminal; after receiving the subscription message, the user terminal returns a first notification message to the network side device according to the user location information event packet, where the first notification message includes current location information of the user terminal, and sends a second notification message to the network side device when the location information of the user terminal changes, where the second notification message includes location information of the user terminal after the change.
Optionally, the subscription message further contains a filtering rule, where the filtering rule includes a user status and a location change type; and if the user terminal meets the filtering rule, sending the second notification message to the network side equipment.
Optionally, the user status includes: at least one of a talk state, an idle state, and a registration state; the location change types include: at least one of an access type handover, a tracking area update and a cell update.
Optionally, the subscription message further contains a subscription validity period; and the user terminal sends the second notification message to the network side equipment in the subscription validity period.
Optionally, the subscription message contains an event header field, an acceptance header field, and an expiration header field; wherein the event header field indicates that the event package type of the subscription message is a user location information event package; the acceptance header field indicates the filtering rule and the user position information event package supports packaging user position information by using an extensible markup language (XML); the validity period header field indicates the subscription validity period.
Optionally, the first notification message includes a first message body content encapsulated by using an XML language, where the first message body content includes current location information of the user terminal and the filtering rule; the second notification message comprises a second message body content encapsulated by using an XML language, wherein the second message body content comprises the position information and the filtering rule after the user terminal is changed.
According to another aspect of the embodiments of the present disclosure, there is provided a method for acquiring user location information, including: receiving a subscription message sent from a network side device, wherein the subscription message comprises a user position information event package, and the user position information event package represents that the network side device requests to acquire position information of a user terminal; returning a first notification message to the network side equipment according to the user position information event packet of the subscription message, wherein the first notification message contains the current position information of the user terminal, and sending a second notification message to the network side equipment under the condition that the position information of the user terminal changes, wherein the second notification message contains the changed position information of the user terminal; the network side device sends the subscription message to the user terminal, obtains the current position information of the user terminal after receiving the first notification message, and obtains the changed position information of the user terminal after receiving the second notification message.
Optionally, the subscription message further contains a filtering rule, where the filtering rule includes a user status and a location change type; and if the current user state and the current position change type of the user terminal meet the filtering rule, sending the second notification message to the network side equipment.
Optionally, the user status includes: at least one of a talk state, an idle state, and a registration state; the location change types include: at least one of an access type handover, a tracking area update and a cell update.
Optionally, the subscription message further contains a subscription validity period; and sending the second notification message to the network side equipment within the subscription validity period.
Optionally, the subscription message contains an event header field, an acceptance header field, and an expiration header field; wherein the event header field indicates that the event package type of the subscription message is a user location information event package; the acceptance header field indicates the filtering rule and the user position information event package supports packaging user position information by using an extensible markup language (XML); the validity period header field indicates the subscription validity period.
Optionally, the first notification message includes a first message body content encapsulated by using an XML language, where the first message body content includes current location information of the user terminal and the filtering rule; the second notification message comprises a second message body content encapsulated by using an XML language, wherein the second message body content comprises the position information and the filtering rule after the user terminal is changed.
According to another aspect of the embodiments of the present disclosure, there is provided a network side device, including: a sending unit, configured to send a subscription message to a user terminal, where the subscription message includes a user location information event package, and the user location information event package indicates that a network side device requests to acquire location information of the user terminal; the receiving unit is used for obtaining the current position information of the user terminal after receiving a first notification message returned from the user terminal and obtaining the changed position information of the user terminal after receiving a second notification message returned from the user terminal; after receiving the subscription message, the user terminal returns a first notification message to the network side device according to the user location information event packet, where the first notification message includes current location information of the user terminal, and sends a second notification message to the network side device when the location information of the user terminal changes, where the second notification message includes location information of the user terminal after the change.
Optionally, the subscription message further contains a filtering rule, where the filtering rule includes a user status and a location change type; and if the user terminal meets the filtering rule, sending the second notification message to the network side equipment.
Optionally, the user status includes: at least one of a talk state, an idle state, and a registration state; the location change types include: at least one of an access type handover, a tracking area update and a cell update.
Optionally, the subscription message further contains a subscription validity period; and the user terminal sends the second notification message to the network side equipment in the subscription validity period.
Optionally, the subscription message contains an event header field, an acceptance header field, and an expiration header field; wherein the event header field indicates that the event package type of the subscription message is a user location information event package; the acceptance header field indicates the filtering rule and the user position information event package supports packaging user position information by using an extensible markup language (XML); the validity period header field indicates the subscription validity period.
Optionally, the first notification message includes a first message body content encapsulated by using an XML language, where the first message body content includes current location information of the user terminal and the filtering rule; the second notification message comprises a second message body content encapsulated by using an XML language, wherein the second message body content comprises the position information and the filtering rule after the user terminal is changed.
According to another aspect of the embodiments of the present disclosure, there is provided a user terminal, including: a receiving module, configured to receive a subscription message sent from a network side device, where the subscription message includes a user location information event package, and the user location information event package indicates that the network side device requests to acquire location information of a user terminal; the sending module is used for returning a first notification message to the network side equipment according to the user position information event packet of the subscription message, wherein the first notification message contains the current position information of the user terminal, and sending a second notification message to the network side equipment under the condition that the position information of the user terminal changes, and the second notification message contains the changed position information of the user terminal; the network side device sends the subscription message to the user terminal, obtains the current position information of the user terminal after receiving the first notification message, and obtains the changed position information of the user terminal after receiving the second notification message.
Optionally, the subscription message further contains a filtering rule, where the filtering rule includes a user status and a location change type; the user terminal further comprises: and the judging module is used for judging whether the current user state and the current position change type of the user terminal conform to the filtering rule or not under the condition that the position information of the user terminal changes, and if the current user state and the current position change type conform to the filtering rule, the sending module is used for sending the second notification message to the network side equipment.
Optionally, the user status includes: at least one of a talk state, an idle state, and a registration state; the location change types include: at least one of an access type handover, a tracking area update and a cell update.
Optionally, the subscription message further contains a subscription validity period; the sending module is further configured to send the second notification message to the network-side device within the subscription validity period.
Optionally, the subscription message contains an event header field, an acceptance header field, and an expiration header field; wherein the event header field indicates that the event package type of the subscription message is a user location information event package; the acceptance header field indicates the filtering rule and the user position information event package supports packaging user position information by using an extensible markup language (XML); the validity period header field indicates the subscription validity period.
Optionally, the first notification message includes a first message body content encapsulated by using an XML language, where the first message body content includes current location information of the user terminal and the filtering rule; the second notification message comprises a second message body content encapsulated by using an XML language, wherein the second message body content comprises the position information and the filtering rule after the user terminal is changed.
According to another aspect of the embodiments of the present disclosure, there is provided a system for acquiring user location information, including: the network side device and the user terminal are as described above.
According to another aspect of the embodiments of the present disclosure, there is provided a network side device, including: a memory; and a processor coupled to the memory, the processor configured to perform the method as previously described based on instructions stored in the memory.
According to another aspect of the embodiments of the present disclosure, there is provided a user terminal, including: a memory; and a processor coupled to the memory, the processor configured to perform the method as previously described based on instructions stored in the memory.
According to another aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method as previously described.
The embodiment of the disclosure breaks through the limitation that the acquisition of the user location information in the prior art can only occur in the call establishment or removal stage, and enables the network side equipment to acquire the user location information in time through the mechanism of subscribing the user location information event and reporting the user terminal location immediately after the user terminal location changes, thereby better and more flexibly meeting various service requirements.
Further, the network side device may specify a filtering rule of the user location information event in the subscription message, so that the user terminal may generate the second notification message according to the filtering rule, instead of initiating the notification when the location change occurs in any case, thereby avoiding an increase in load of the terminal and the network due to frequent reporting of the location change.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 is a flow chart illustrating a method of obtaining user location information according to some embodiments of the present disclosure.
FIG. 2 is a flow chart illustrating a method of obtaining user location information according to further embodiments of the present disclosure.
FIG. 3 is a flow chart illustrating a method of obtaining user location information according to further embodiments of the present disclosure.
FIG. 4 is a flow chart illustrating a method of obtaining user location information according to further embodiments of the present disclosure.
FIG. 5 is a flow chart illustrating a method of obtaining user location information according to further embodiments of the present disclosure.
Fig. 6 is a block diagram that schematically illustrates a network-side device, in accordance with some embodiments of the present disclosure.
Fig. 7 is a block diagram that schematically illustrates a user terminal, in accordance with some embodiments of the present disclosure.
Fig. 8 is a block diagram that schematically illustrates a network-side device, in accordance with further embodiments of the present disclosure.
Fig. 9 is a block diagram that schematically illustrates a network-side device, in accordance with further embodiments of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a flow chart illustrating a method of obtaining user location information according to some embodiments of the present disclosure. The method of fig. 1 may be implemented in a network-side device. For example, the network side device may include an IMS core network device and/or a service platform.
In step S102, a subscription message is sent to the user terminal, where the subscription message includes a user location information event package, and the user location information event package indicates that the network side device requests to acquire location information of the user terminal.
For example, the network-side device may send the subscription message to the user terminal when the user terminal registers to the network-side device or when the user terminal initiates a call request. For example, a user location information (location) event packet is newly added in the SIP protocol, and the network side device sends the user location information event packet to the user terminal through a subscription message, thereby requesting the user terminal to acquire the location information of the user terminal.
After receiving the subscription message, the user terminal returns a first notification message to the network side device according to the user location information event packet, wherein the first notification message contains the current location information of the user terminal, and sends a second notification message to the network side device when the location information of the user terminal changes, and the second notification message contains the location information of the user terminal after the change.
In step S104, the current location information of the user terminal is obtained after receiving the first notification message returned from the user terminal, and the changed location information of the user terminal is obtained after receiving the second notification message returned from the user terminal.
In the above embodiment, the purpose of acquiring the user location information is achieved by sending a subscription message to the user terminal, where the subscription message includes a user location information event package, where the user location information event package indicates that the network side device requests to acquire the location information of the user terminal, receiving a first notification message from the user terminal, acquiring the current location information of the user terminal according to the first notification message, receiving a second notification message from the user terminal, and acquiring the location information of the user terminal after change according to the second notification message.
According to the method, the network side equipment subscribes the user position information event and reports the user terminal position immediately after the user terminal position changes, so that the network side equipment can acquire the user position information in time under the condition that the user registers online, and various service requirements are met better and more flexibly.
In some embodiments, the subscription message may also contain filtering rules, which may include user status and location change types. When the location information changes, the ue further determines whether the current user state and location change type of the ue conform to the filtering rule (i.e., determines whether the current user state and location change type of the ue conform to the user state and location change type specified by the filtering rule), and if so, sends a second notification message to the network side device. The application of the filtering rule can flexibly screen the user position information, and avoids increasing the load of a terminal and a network due to frequent reporting of position changes.
In some embodiments, the user status may include: at least one of a talk state, an idle state, and a registration state. It should be noted that the user status may be other than the above three statuses, and thus the scope of the present disclosure is not limited thereto.
In some embodiments, the location change type may include: access type handover (e.g., handover between LTE and WLAN (Wireless Local Area network)), Tracking Area (TA) update, and cell (cell) update. It should be noted that the type of position change may be other than the above three types, and thus the scope of the present disclosure is not limited thereto.
In some embodiments, the subscription message may also contain a subscription validity period; and the user terminal sends a second notification message to the network side equipment within the subscription validity period. That is, the user terminal sends the second notification message to the network side device when the location information of the user terminal changes within the subscription validity period.
In some embodiments, the subscription message may contain an Event (Event) header field, an Accept (Accept) header field, and an expiration (Expires) header field.
The event header field indicates that the type of the event package of the subscription message is a user location information event package.
The accept header field indicates the filtering rule and the user location information event package supports encapsulating the user location information using XML (Extensible Markup Language). In this way, the user terminal returns the first notification message or the second notification message, which contains the message body content encapsulated in the XML language, the message body content containing the location information and the filtering rule of the user terminal.
In some embodiments, the first notification message may include first message body content encapsulated in XML language, wherein the first message body content includes current location information of the user terminal and the filtering rule.
In some embodiments, the second notification message may include a second message body content encapsulated in XML, wherein the second message body content may include the changed location information of the ue and the filtering rule.
The validity period header field indicates a subscription validity period. For example, Expires:3600, indicating that the subscription validity period is 3600 seconds.
FIG. 2 is a flow chart illustrating a method of obtaining user location information according to further embodiments of the present disclosure. The method of fig. 2 may be implemented in a user terminal.
In step S202, a subscription message sent from the network side device is received, where the subscription message includes a user location information event package, and the user location information event package indicates that the network side device requests to acquire location information of the user terminal.
In step S204, a first notification message is returned to the network side device according to the user location information event packet of the subscription message, where the first notification message includes the current location information of the user terminal, and a second notification message is sent to the network side device when the location information of the user terminal changes, where the second notification message includes the changed location information of the user terminal.
The network side equipment sends a subscription message to the user terminal, obtains the current position information of the user terminal after receiving the first notification message, and obtains the changed position information of the user terminal after receiving the second notification message.
In the above embodiment, the network-side device receives the subscription message sent from the network-side device, returns a first notification message to the network-side device according to the user location information event packet of the subscription message, where the first notification message includes the current location information of the user terminal, and sends a second notification message to the network-side device when the location information of the user terminal changes, where the second notification message includes the changed location information of the user terminal, so that the network-side device obtains the user location information.
According to the method, the network side equipment subscribes the user position information event and reports the user terminal position immediately after the user terminal position changes, so that the network side equipment can acquire the user position information in time under the condition that the user registers online, and various service requirements are met better and more flexibly.
In some embodiments, the subscription message may also contain filtering rules, which may include user status and location change types. And if the current user state and the current position change type of the user terminal conform to the filtering rule, sending a second notification message to the network side equipment. The application of the filtering rule can flexibly screen the user position information, and avoids increasing the load of a terminal and a network due to frequent reporting of position changes.
In some embodiments, the user status may include: at least one of a talk state, an idle state, and a registration state.
In some embodiments, the location change type may include: at least one of an access type handover, a tracking area update and a cell update.
In some embodiments, the subscription message may also contain a subscription validity period. And sending a second notification message to the network side equipment within the subscription validity period.
In some embodiments, the subscription message may contain an event header field, an acceptance header field, and an expiration header field. The event header field indicates that the type of the event package of the subscription message is a user location information event package. The acceptance header field indicates the filtering rule and the user location information event package supports packaging of user location information using XML language. The validity period header field indicates a subscription validity period.
In some embodiments, the first notification message may contain first message body content encapsulated in XML language, wherein the first message body content may contain current location information of the user terminal and filtering rules.
In some embodiments, the second notification message may include second message body content encapsulated in XML language, wherein the second message body content may include changed location information and filtering rules of the user terminal.
FIG. 3 is a flow chart illustrating a method of obtaining user location information according to further embodiments of the present disclosure.
In step S302, the network side device sends a subscription message to the user terminal, where the subscription message includes a user location information event package, a filtering rule, and a subscription validity period, where the user location information event package indicates that the network side device requests to acquire location information of the user terminal. For example, the network-side device may send the subscription message to the user terminal when the user terminal registers to the network-side device or when the user terminal initiates a call request.
In step S304, after receiving the subscription message, the ue returns a first notification message to the network side device according to the ue location information event packet, where the first notification message includes the current location information of the ue and the filtering rule.
In step S306, the network side device obtains the current location information of the ue after receiving the first notification message.
In step S308, the ue determines whether the current time is within the subscription validity period. If so, the process proceeds to step S310, otherwise the determination is ended.
In step S310, the user terminal determines whether the location information has changed. If so, the process proceeds to step S312, otherwise returns to step S308.
In step S312, the ue determines whether the current user status and the location change type conform to the filtering rule. If the filter rule is met, the process proceeds to step S314, otherwise returns to step S308.
In step S314, the ue sends a second notification message to the network side device, where the second notification message includes the changed location information of the ue and the filtering rule.
In step S316, the network side device obtains the changed location information of the ue after receiving the second notification message.
In the method of the above embodiment, a user location information event package is newly added in the SIP protocol; subscribing a user location information event to a user terminal (such as a VoLTE or VoWiFi user terminal) by using a subscription message by a network side device (such as an IMS core network device or a service platform) which needs the user location information; after receiving the subscription, the user terminal immediately sends a first notification message to inform the current position information and the filtering rule used by the notification; and in the subscription validity period, if the position information of the user terminal changes and accords with the filtering rule, the user terminal uses a second notification message to notify the changed position information and the filtering rule used by the notification to the network side equipment in time.
The method of the embodiment breaks through the limitation that the acquisition of the user position information can only occur in the call establishment or removal stage in the prior art, and enables the network side equipment to acquire the user position information in time (as long as the user registers online) through a mechanism of subscribing the user position information event and reporting the user terminal position immediately after the user terminal position changes, thereby better and more flexibly meeting various service requirements. Moreover, the network side device can specify the filtering rule of the user location information event in the subscription message, so that the user terminal can generate a second notification message according to the filtering rule, and the notification is not initiated when the location change occurs under any condition, thereby avoiding the increase of the load of the terminal and the network due to the frequent reporting of the location change.
In the embodiment of the disclosure, when the location information changes again, as long as the subscription validity period is within and meets the filtering rule, the user terminal sends a second notification message to the network side device again to notify the changed location information.
FIG. 4 is a flow chart illustrating a method of obtaining user location information according to further embodiments of the present disclosure. The process shown in fig. 4 is a location information reporting process when the user is in a registered state and the access type is switched. The network side device in fig. 4 may include an IMS core network device and/or a service platform.
In step S401, the user terminal sends a registration request message to the network side device. The registration request message may contain user terminal information.
In step S402, the network side device returns a registration response message to the user terminal, thereby implementing the user registration to the network side device.
In step S403, the network side device initiates a subscription message to the user terminal. The subscription message contains an event header field, an acceptance header field, and an expiration header field. The Event header field indicates the type of the Event package of the subscription message as a user location information Event package, such as Event: location. The accept header field indicates the filtering rules and the user location information event package supports the encapsulation of user location information using XML language, such as: accept is application/location-info + xml; status is Registered; access-type (the user status of the filtering rule is registration status, and the location change type is Access type switching). The validity period header field indicates the subscription validity period, for example: 360000 is Expires.
In step S404, the user terminal returns a response message corresponding to the subscription message to the network side device, and the subscription is completed.
In step S405, after the user accepts the subscription, the user immediately sends a first notification message to notify the current location information. For example, the current location information may be location information at the time of registration of the user terminal. For example, in the first message body content of the first notification message, the access-type and location-info may together represent location information, and the status and update may together represent filtering criteria. For example, Access-type is "3 GPP-E-UTRAN-FDD" (Access type is LTE Access), location-info is "UTRAN-cell-id-3 GPP is 460115b1a5b5af 04" (cell-id information of LTE Access), status is Registered, and update is Access-type.
In step S406, after receiving the first notification message, the network side device returns a response message corresponding to the first notification message to the user terminal, and the first notification process is completed.
In step S407, the user terminal switches from LTE access to WLAN access (e.g., WiFi access).
In step S408, the user terminal sends a second notification message to the network-side device, and notifies the changed location information. For example, in the second message body content of the second notification message, the access-type (accept type) and the location-info (location information) may together represent location information, and the status and update may together represent filtering criteria. For example, Access-type is "IEEE-802.11" (Access type WLAN after handover), location-info is "i-WLAN-node-id is c4cad 9199981" (AP-id information of Access WLAN), status is Registered, and update is Access-type.
In step S409, after receiving the second notification message, the network side device returns a response message corresponding to the second notification message to the user terminal, and the second notification process is completed.
In the above embodiment, the user terminal sends the second notification message to the network side device to notify the changed location information when the LTE access is switched to the WLAN access, so that a location information reporting procedure is implemented when the user is in a registration state and when the access type is switched.
FIG. 5 is a flow chart illustrating a method of obtaining user location information according to further embodiments of the present disclosure. The process shown in fig. 5 is a location information reporting process when the user is in a call state and the TA is updated. The network side device in fig. 5 may include an IMS core network device and/or a service platform.
In step S501, the user terminal initiates a call request message to the network side device.
In step S502, the network side device returns a call response message to the user terminal, thereby implementing a process of the user initiating a call request.
In step S503, the network side device initiates a subscription message to the user terminal. The subscription message contains an event header, an acceptance header and an expiration header, for example, the three headers are as follows:
Event:location；
accept is application/location-info + xml; status is Dialog; TA (the user status of the filtering rule is the call status, and the location change type is TA update);
Expires:3600。
in step S504, the user terminal returns a response message corresponding to the subscription message to the network side device, and the subscription is completed.
In step S505, after the user accepts the subscription, a first notification message is sent immediately to notify the current location information. For example, the current location information may be location information at the time of registration of the user terminal. For example, in the first message body content of the first notification message, access-type is "3 GPP-E-UTRAN-FDD" (access type is LTE), "location-info is" UTRAN-cell-id-3GPP is 460115b1a5b5af04 "(cell-id information of access LTE), status is Dialog, and update is TA.
In step S506, after receiving the first notification message, the network side device returns a response message corresponding to the first notification message to the user terminal, and the first notification process is completed.
In step S507, the user terminal performs a location update at the TA level.
In step S508, the ue sends a second notification message to the network side device, and notifies the changed location information. For example, in the second message body content of the second notification message,
access-type ═ 3GPP-E-UTRAN-FDD (access type LTE invariant),
location-info ═ utran-cell-id-3gpp ═ 46011000276B4321 "(cell-id information after TA location update), status ═ Dialog, update ═ TA.
In step S509, after receiving the second notification message, the network side device returns a response message corresponding to the second notification message to the user terminal, and the second notification process is completed.
In the above embodiment, when the location update at the TA level occurs, the user terminal sends the second notification message to the network side device to notify the changed location information, so that the location information reporting process is implemented when the user is in a call state and when the TA is updated.
Fig. 6 is a block diagram that schematically illustrates a network-side device, in accordance with some embodiments of the present disclosure. As shown in fig. 6, the network side device may include a transmitting unit 602 and a receiving unit 604.
The sending unit 602 may be configured to send a subscription message to the user terminal, where the subscription message includes a user location information event package, and the user location information event package indicates that the network side device requests to acquire location information of the user terminal.
The receiving unit 604 may be configured to obtain current location information of the ue after receiving a first notification message returned from the ue, and obtain changed location information of the ue after receiving a second notification message returned from the ue.
After receiving the subscription message, the user terminal returns a first notification message to the network side device according to the user location information event packet, wherein the first notification message contains the current location information of the user terminal, and sends a second notification message to the network side device when the location information of the user terminal changes, and the second notification message contains the changed location information of the user terminal.
In the above embodiment, a sending unit sends a subscription message to a user terminal, where the subscription message includes a user location information event package, and the user location information event package indicates that a network side device requests to acquire location information of the user terminal; the receiving unit receives a first notification message from the user terminal, obtains the current position information of the user terminal according to the first notification message, receives a second notification message from the user terminal, and obtains the changed position information of the user terminal according to the second notification message, thereby achieving the purpose of obtaining the position information of the user. The embodiment of the disclosure can enable the network side device to timely acquire the location information of the user under the condition that the user is registered online, and better and more flexibly meet various service requirements.
In some embodiments, the subscription message may also contain filtering rules, which may include user status and location change types. And if the user terminal accords with the filtering rule, sending a second notification message to the network side equipment.
In some embodiments, the user status may include: at least one of a talk state, an idle state, and a registration state.
In some embodiments, the location change type may include: at least one of an access type handover, a tracking area update and a cell update.
In some embodiments, the subscription message may also contain a subscription validity period. And the user terminal sends a second notification message to the network side equipment within the subscription validity period.
In some embodiments, the subscription message may contain an event header field, an acceptance header field, and an expiration header field. The event header field indicates that the type of the event package of the subscription message is a user location information event package. The accept header field indicates filtering rules and the user location information event package supports encapsulation of user location information using the XML language. The validity period header field indicates a subscription validity period.
In some embodiments, the first notification message may include a first message body content encapsulated in XML language, wherein the first message body content may include current location information of the user terminal and the filtering rule;
in some embodiments, the second notification message may include a second message body content encapsulated in XML, where the second message body content may include the changed location information of the ue and the filtering rule.
Fig. 7 is a block diagram that schematically illustrates a user terminal, in accordance with some embodiments of the present disclosure. As shown in fig. 7, the user terminal may include a receiving module 702 and a transmitting module 704.
The receiving module 702 may be configured to receive a subscription message sent from a network-side device, where the subscription message may include a user location information event package, where the user location information event package indicates that the network-side device requests to acquire location information of a user terminal.
The sending module 704 may be configured to return a first notification message to the network-side device according to the user location information event packet of the subscription message, where the first notification message may include current location information of the user terminal, and send a second notification message to the network-side device when the location information of the user terminal changes, where the second notification message may include location information of the user terminal after the user terminal changes.
The network side device sends the subscription message to the user terminal, obtains the current position information of the user terminal after receiving the first notification message, and obtains the changed position information of the user terminal after receiving the second notification message.
In the above embodiment, the receiving module receives the subscription message sent from the network side device, and the sending module returns a first notification message to the network side device according to the user location information event packet of the subscription message, where the first notification message includes the current location information of the user terminal, and sends a second notification message to the network side device when the location information of the user terminal changes, where the second notification message includes the location information of the user terminal after the change, so that the network side device obtains the user location information. The embodiment of the disclosure can enable the network side device to timely acquire the location information of the user under the condition that the user is registered online, and better and more flexibly meet various service requirements.
In some embodiments, the subscription message may also contain filtering rules including user status and location change type. As shown in fig. 7, the user terminal may further include: a determining module 706, configured to determine, when the location information of the ue changes, whether a current user state and a current location change type of the ue meet a filtering rule, and if the current user state and the current location change type meet the filtering rule, enable the sending module 704 to send a second notification message to the network side device.
In some embodiments, the user status may include: at least one of a talk state, an idle state, and a registration state.
In some embodiments, the location change type may include: at least one of an access type handover, a tracking area update and a cell update.
In some embodiments, the subscription message may also contain a subscription validity period. The sending module 704 is further configured to send a second notification message to the network-side device within the subscription validity period.
In some embodiments, the subscription message may contain an event header field, an acceptance header field, and an expiration header field. The event header field indicates that the type of the event package of the subscription message is a user location information event package. The accept header field indicates filtering rules and the user location information event package supports encapsulation of user location information using the XML language. The validity period header field indicates a subscription validity period.
In some embodiments, the first notification message may include first message body content encapsulated in XML language, wherein the first message body content may include current location information of the user terminal and the filtering rule.
In some embodiments, the second notification message may include a second message body content encapsulated in XML, where the second message body content may include the changed location information of the ue and the filtering rule.
In an embodiment of the present disclosure, there is also provided a system for acquiring user location information, including: a network side device as described above (e.g., the network side device shown in fig. 6) and a user terminal as described above (e.g., the user terminal shown in fig. 7).
Fig. 8 is a block diagram that schematically illustrates a network-side device, in accordance with further embodiments of the present disclosure. The network side device includes a memory 810 and a processor 820. Wherein:
the memory 810 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used for storing instructions in the embodiment corresponding to fig. 1.
In one embodiment, as also shown in fig. 9, the network side device 900 includes a memory 910 and a processor 920. Processor 920 is coupled to memory 910 by a BUS 930. The network-side device 900 may also be connected to an external storage 950 through a storage interface 940 for accessing external data, and may also be connected to a network or another computer system (not shown) through a network interface 960, which will not be described in detail herein.
In this embodiment, a memory stores a data instruction, and a processor processes the instruction, and sends a subscription message to a user terminal, where the subscription message includes a user location information event package, and the user location information event package indicates that a network side device requests to acquire location information of the user terminal; the method comprises the steps of receiving a first notification message from a user terminal, obtaining the current position information of the user terminal according to the first notification message, receiving a second notification message from the user terminal, and obtaining the changed position information of the user terminal according to the second notification message, thereby achieving the purpose of obtaining the position information of the user.
In still other embodiments of the present disclosure, there is provided a user terminal, which may include: a memory; and a processor coupled to the memory, the processor configured to perform the method of fig. 2 based on instructions stored in the memory.
In another embodiment, the present disclosure also provides a computer-readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the steps of the method in at least one of the corresponding embodiments of fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
The method and system of the present disclosure may be implemented in a number of ways. For example, the methods and systems of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (24)
1. A method of obtaining user location information, comprising:
sending a subscription message to a user terminal, wherein the subscription message comprises a user position information event package, and the user position information event package represents that a network side device requests to acquire position information of the user terminal; and
obtaining current position information of the user terminal after receiving a first notification message returned from the user terminal, and obtaining changed position information of the user terminal after receiving a second notification message returned from the user terminal;
after receiving the subscription message, the user terminal returns a first notification message to the network side device according to the user location information event packet, where the first notification message includes current location information of the user terminal, and sends a second notification message to the network side device when the location information of the user terminal changes, where the second notification message includes location information of the user terminal after the change;
the subscription message further contains a filtering rule, wherein the filtering rule comprises a user state and a location change type; and if the user state and the location change type specified by the filtering rule are met, sending the second notification message to the network side equipment.
2. The method of claim 1, wherein,
the user states include: at least one of a talk state, an idle state, and a registration state;
the location change types include: at least one of an access type handover, a tracking area update and a cell update.
3. The method of claim 1, wherein,
the subscription message also contains a subscription validity period;
and the user terminal sends the second notification message to the network side equipment in the subscription validity period.
4. The method of claim 3, wherein,
the subscription message comprises an event header field, an acceptance header field and an expiration header field;
wherein the event header field indicates that the event package type of the subscription message is a user location information event package;
the acceptance header field indicates the filtering rule and the user position information event package supports packaging user position information by using an extensible markup language (XML);
the validity period header field indicates the subscription validity period.
5. The method of claim 1, wherein,
the first notification message comprises a first message body content encapsulated by an XML language, wherein the first message body content comprises the current position information of the user terminal and the filtering rule;
the second notification message comprises a second message body content encapsulated by using an XML language, wherein the second message body content comprises the position information and the filtering rule after the user terminal is changed.
6. A method of obtaining user location information, comprising:
receiving a subscription message sent from a network side device, wherein the subscription message comprises a user position information event package, and the user position information event package represents that the network side device requests to acquire position information of a user terminal; and
returning a first notification message to the network side equipment according to the user position information event packet of the subscription message, wherein the first notification message contains the current position information of the user terminal, and sending a second notification message to the network side equipment under the condition that the position information of the user terminal changes, wherein the second notification message contains the changed position information of the user terminal;
the network side equipment sends the subscription message to the user terminal, obtains the current position information of the user terminal after receiving the first notification message, and obtains the changed position information of the user terminal after receiving the second notification message;
the subscription message further contains a filtering rule, wherein the filtering rule comprises a user state and a location change type; and if the user state and the position change type specified by the filtering rule are met, sending the second notification message to the network side equipment.
7. The method of claim 6, wherein,
the user states include: at least one of a talk state, an idle state, and a registration state;
the location change types include: at least one of an access type handover, a tracking area update and a cell update.
8. The method of claim 6, wherein,
the subscription message also contains a subscription validity period;
and sending the second notification message to the network side equipment within the subscription validity period.
9. The method of claim 8, wherein,
the subscription message comprises an event header field, an acceptance header field and an expiration header field;
wherein the event header field indicates that the event package type of the subscription message is a user location information event package;
the acceptance header field indicates the filtering rule and the user position information event package supports packaging user position information by using an extensible markup language (XML);
the validity period header field indicates the subscription validity period.
10. The method of claim 6, wherein,
the first notification message comprises a first message body content encapsulated by an XML language, wherein the first message body content comprises the current position information of the user terminal and the filtering rule;
the second notification message comprises a second message body content encapsulated by using an XML language, wherein the second message body content comprises the position information and the filtering rule after the user terminal is changed.
11. A network-side device, comprising:
a sending unit, configured to send a subscription message to a user terminal, where the subscription message includes a user location information event package, and the user location information event package indicates that a network side device requests to acquire location information of the user terminal; and
a receiving unit, configured to obtain current location information of the user terminal after receiving a first notification message returned from the user terminal, and obtain location information of the user terminal after change after receiving a second notification message returned from the user terminal;
after receiving the subscription message, the user terminal returns a first notification message to the network side device according to the user location information event packet, where the first notification message includes current location information of the user terminal, and sends a second notification message to the network side device when the location information of the user terminal changes, where the second notification message includes location information of the user terminal after the change;
the subscription message further contains a filtering rule, wherein the filtering rule comprises a user state and a location change type; and if the user state and the location change type specified by the filtering rule are met, sending the second notification message to the network side equipment.
12. The network-side device of claim 11,
the user states include: at least one of a talk state, an idle state, and a registration state;
the location change types include: at least one of an access type handover, a tracking area update and a cell update.
13. The network-side device of claim 11,
the subscription message also contains a subscription validity period;
and the user terminal sends the second notification message to the network side equipment in the subscription validity period.
14. The network-side device of claim 13,
the subscription message comprises an event header field, an acceptance header field and an expiration header field;
wherein the event header field indicates that the event package type of the subscription message is a user location information event package;
the acceptance header field indicates the filtering rule and the user position information event package supports packaging user position information by using an extensible markup language (XML);
the validity period header field indicates the subscription validity period.
15. The network-side device of claim 11,
the first notification message comprises a first message body content encapsulated by an XML language, wherein the first message body content comprises the current position information of the user terminal and the filtering rule;
the second notification message comprises a second message body content encapsulated by using an XML language, wherein the second message body content comprises the position information and the filtering rule after the user terminal is changed.
16. A user terminal, comprising:
a receiving module, configured to receive a subscription message sent from a network side device, where the subscription message includes a user location information event package, and the user location information event package indicates that the network side device requests to acquire location information of a user terminal; and
a sending module, configured to return a first notification message to the network-side device according to the user location information event packet of the subscription message, where the first notification message includes current location information of the user terminal, and send a second notification message to the network-side device when the location information of the user terminal changes, where the second notification message includes location information of the user terminal after the user terminal changes;
the network side equipment sends the subscription message to the user terminal, obtains the current position information of the user terminal after receiving the first notification message, and obtains the changed position information of the user terminal after receiving the second notification message;
the subscription message further contains a filtering rule, wherein the filtering rule comprises a user state and a location change type;
the user terminal further comprises:
a determining module, configured to determine, when the location information of the ue changes, whether a current user state and a current location change type of the ue meet the user state and the location change type specified by the filtering rule, and if the current user state and the current location change type meet the user state and the location change type specified by the filtering rule, enable the sending module to send the second notification message to the network-side device.
17. The user terminal of claim 16,
the user states include: at least one of a talk state, an idle state, and a registration state;
the location change types include: at least one of an access type handover, a tracking area update and a cell update.
18. The user terminal of claim 16,
the subscription message also contains a subscription validity period;
the sending module is further configured to send the second notification message to the network-side device within the subscription validity period.
19. The user terminal of claim 18,
the subscription message comprises an event header field, an acceptance header field and an expiration header field;
wherein the event header field indicates that the event package type of the subscription message is a user location information event package;
the acceptance header field indicates the filtering rule and the user position information event package supports packaging user position information by using an extensible markup language (XML);
the validity period header field indicates the subscription validity period.
20. The user terminal of claim 16,
the first notification message comprises a first message body content encapsulated by an XML language, wherein the first message body content comprises the current position information of the user terminal and the filtering rule;
the second notification message comprises a second message body content encapsulated by using an XML language, wherein the second message body content comprises the position information and the filtering rule after the user terminal is changed.
21. A system for obtaining user location information, comprising:
the network side device according to any one of claims 11 to 15 and the user terminal according to any one of claims 16 to 20.
22. A network-side device, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-5 based on instructions stored in the memory.
23. A user terminal, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of any of claims 6 to 10 based on instructions stored in the memory.
24. A computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any one of claims 1 to 10.
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