CN109246821B - Session management method and device - Google Patents

Session management method and device Download PDF

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Publication number
CN109246821B
CN109246821B CN201710456536.8A CN201710456536A CN109246821B CN 109246821 B CN109246821 B CN 109246821B CN 201710456536 A CN201710456536 A CN 201710456536A CN 109246821 B CN109246821 B CN 109246821B
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pdu session
3gpp access
reactivated
access
gpp
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CN109246821A (en
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侯云静
姜永
艾明
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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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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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a session management method and a device, when UE is in an idle state in a non-3 GPP access, if a data notification request aiming at a PDU session of the UE in the non-3 GPP access is received, whether the UE is paged through the 3GPP access or whether a notification message is sent to the UE through the 3GPP access is judged according to the obtained information for representing whether the PDU session can be reactivated in the 3GPP access or not, or whether the UE is paged through the 3GPP access is further judged by combining the available non-3 GPP access around the UE, thereby solving the technical problem of paging resource waste in the session management process in the prior art.

Description

Session management method and device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a session management method and apparatus.
Background
A network architecture in which a UE (User Equipment) is connected to a core network through 3GPP (3rd Generation Partnership Project) access and non-3 GPP access is shown in fig. 1. The respective symbols in fig. 1 are explained as follows:
HPLMN (Home Public Land Mobile Network );
AMF (Access Control And Mobility Management Function);
SMF (Session Management Function);
IWF (Inter Working Function);
UPF (User Plane Function);
n1, N2, N3, N4, N6, N11, NWu, Y1, and Y2 are communication interfaces in the network architecture.
For a UE connected to both a 3GPP access and a non-3 GPP access, if the UE enters an idle state in the non-3 GPP access, when the UPF receives downlink data of a PDU session established in the non-3 GPP access, the UPF sends a downlink data notification message to the SMF. The SMF sends an N11 request message to the AMF, when the UE is in an idle state in the non-3 GPP access, the AMF pages the UE in the 3GPP access, and the paging message carries the wireless access type.
When the UE receives the paging message, the UE initiates a service request process through the 3GPP access, and the service request message carries a PDU session identifier which is established in the non-3 GPP access and can be moved to the 3GPP access. After receiving the message, the AMF judges whether the PDU session identifier of the received downlink data is in a PDU session identifier list provided by the UE, if so, the AMF continues to execute the service request process; if not, AMF returns reject message to UE and SMF respectively.
It can be seen that in the prior art, the network (e.g. a mobile network) does not know whether the UE wishes to establish a certain PDN connection through a 3GPP access during session management, but pages the UE directly through the 3GPP access; when the UE receives the paging and initiates the service request procedure, the mobile network can obtain the information whether the UE wants to establish the connection through the 3GPP access, so even if the UE does not want to establish the connection through the 3GPP access, the paging is still performed, and therefore, there is a technical problem of paging resource waste in the session management procedure.
Disclosure of Invention
The embodiment of the invention provides a session management method and a session management device, which are used for solving the technical problem of paging resource waste in the session management process in the prior art.
In a first aspect, an embodiment of the present invention provides a session management method, including:
when a user terminal UE is in an idle state in a non-3 GPP access, if a data notification request aiming at a PDU session of the UE in the non-3 GPP access is received, judging whether the PDU session can be reactivated in the 3GPP access according to the obtained information for representing whether the PDU session can be reactivated in the 3GPP access;
paging the UE through the 3GPP access or sending a notification message to the UE through the 3GPP access if the PDU session can be reactivated within the 3GPP access.
Optionally, the method further includes:
and if the PDU session can not be reactivated in the 3GPP access, sending a reply message aiming at the data notification request, wherein the reply message carries a rejection reason.
Optionally, the method further includes:
if the PDU session cannot be reactivated within the 3GPP access,
judging whether to page the UE through the 3GPP access or not based on whether available non-3 GPP access exists around the UE;
paging the UE through the 3GPP access if there is a non-3 GPP access available around the UE.
Optionally, the method further includes:
and if no available non-3 GPP access exists around the UE, sending a reply message aiming at the data notification request, wherein the reply message carries a rejection reason.
Optionally, the determining whether to page the UE through the 3GPP access based on whether there is an available non-3 GPP access around the UE includes:
judging whether the UE is paged through the 3GPP access or not based on whether available non-3 GPP access exists around the position where the UE is located; or
And judging whether to page the UE through the 3GPP access or not based on the received message which is sent by the UE and whether the available non-3 GPP access is monitored or not.
Optionally, when the UE is in an idle state in the non-3 GPP access, if a data notification request for a PDU session of the UE in the non-3 GPP access is received, before determining whether the PDU session can be reactivated in the 3GPP access according to the obtained information for characterizing whether the PDU session can be reactivated in the 3GPP access, the method further includes:
and in the process that the UE establishes the PDU session in the non-3 GPP access, obtaining information which is sent by the UE and used for representing whether the PDU session can be reactivated in the 3GPP access.
Optionally, after obtaining the information sent by the UE for characterizing whether the PDU session can be reactivated within the 3GPP access, the method further includes:
if the UE has established a PDU session in the non-3 GPP access, obtaining information for characterizing whether an updated and modified PDU session can be reactivated in the 3GPP access based on the received registration request information sent by the UE, and obtaining information for characterizing whether the updated and modified PDU session can be reactivated in the 3GPP access; wherein, the registration request message carries information for characterizing whether the modified PDU session can be reactivated in the 3GPP access.
Optionally, after obtaining the information sent by the UE for characterizing whether the PDU session can be reactivated within the 3GPP access, the method further includes:
deleting the obtained information characterizing whether the PDU session can be reactivated within the 3GPP access when the PDU session is released or the PDU session is reactivated within the 3GPP access.
In a second aspect, an embodiment of the present invention provides a session management apparatus, including:
a first determining module, configured to, when a user equipment UE is in an idle state in a non-3 GPP access, determine whether a PDU session can be reactivated in the 3GPP access according to information obtained to characterize whether the PDU session can be reactivated in the 3GPP access if a data notification request for the PDU session of the UE in the non-3 GPP access is received;
a first sending module, configured to send a paging message to the UE through a 3GPP access to page the UE in the 3GPP access or send a notification message to the UE through the 3GPP access if the PDU session can be reactivated in the 3GPP access.
Optionally, the apparatus further comprises:
a second sending module, configured to send a reply message for the data notification request if the PDU session cannot be reactivated in the 3GPP access, where the reply message carries a reject reason.
Optionally, the apparatus further comprises:
a second determining module, configured to determine whether to page the UE through a 3GPP access based on whether there is an available non-3 GPP access around the UE if the PDU session cannot be reactivated in the 3GPP access;
a second paging module, configured to page the UE through the 3GPP access if there is an available non-3 GPP access around the UE.
Optionally, the apparatus further comprises:
a third sending module, configured to send a reply message for the data notification request if no available non-3 GPP access exists around the UE, where the reply message carries a reject reason.
Optionally, the second determining module includes:
a first judging submodule, configured to judge whether to page the UE through the 3GPP access based on whether there is an available non-3 GPP access around a location where the UE is located; or
And the second judging submodule is used for judging whether to page the UE through the 3GPP access or not based on the received message which is sent by the UE and whether to monitor the available non-3 GPP access or not.
Optionally, the apparatus further includes a first obtaining module:
when the user terminal UE is in idle state in non-3 GPP access, if receiving a data notification request aiming at PDU session of the UE in the non-3 GPP access, judging whether the PDU session can be reactivated in the 3GPP access according to the obtained information for representing whether the PDU session can be reactivated in the 3GPP access,
the first obtaining module is configured to obtain, during a process of establishing a PDU session in a non-3 GPP access by the UE, information sent by the UE and used for characterizing whether the PDU session can be reactivated in the 3GPP access.
Optionally, the apparatus further includes a second obtaining module:
after the obtaining of the information sent by the UE to characterize whether the PDU session can be reactivated within a 3GPP access,
the second obtaining module is configured to, if the UE has established a PDU session in the non-3 GPP access, obtain information characterizing whether an updated and modified PDU session that can be reactivated in the 3GPP access is available based on the received registration request information sent by the UE; wherein, the registration request message carries information for characterizing whether the modified PDU session can be reactivated in the 3GPP access.
Optionally, the apparatus further includes a deletion module:
after the obtaining of the information sent by the UE to characterize whether the PDU session can be reactivated within a 3GPP access,
the deleting module is configured to delete the obtained information characterizing whether the PDU session can be reactivated in the 3GPP access when the PDU session is released or the PDU session is reactivated in the 3GPP access.
In a third aspect, an embodiment of the present invention provides a computer apparatus, which includes a processor configured to implement the steps of the method as described in the first aspect when executing a computer program stored in a memory.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the method as described in the embodiment of the first aspect.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
for a PDU session established by a user terminal UE in non-3 GPP access, judging whether to page the UE through the 3GPP access according to the obtained information whether to reactivate the PDU session in the 3GPP access or further in combination with available non-3 GPP access existing around the UE, avoiding unnecessary paging in the session management process and reducing resource waste.
Drawings
Fig. 1 is a schematic diagram of a network architecture in which a 3GPP access and a non-3 GPP access are connected to a core network in the prior art;
FIG. 2 is a first flowchart of a session management method according to an embodiment of the present invention;
FIG. 3 is a second flowchart of a session management method according to an embodiment of the present invention;
FIG. 4 is a fourth flowchart of a session management method according to an embodiment of the present invention;
FIG. 5A is a first diagram of a session management apparatus according to an embodiment of the present invention;
FIG. 5B is a second diagram illustrating a session management apparatus according to an embodiment of the invention;
fig. 5C is a third schematic diagram of a session management apparatus according to an embodiment of the present invention.
Detailed Description
In order to solve the technical problem, the technical scheme in the embodiment of the invention has the following general idea:
when UE is in idle state in non-3 GPP access, if receiving a data notification request aiming at PDU session of the UE in the non-3 GPP access, judging whether to page the UE through the 3GPP access or send notification message to the UE through the 3GPP access according to the obtained information for representing whether to reactivate the PDU session in the 3GPP access, or further judging whether to page the UE through the 3GPP access by combining with whether the UE can enter connected state in the non-3 GPP access.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 2, a first embodiment of the present invention provides a session management method, including the following steps:
s201, when a user terminal UE is in an idle state in a non-3 GPP access, if a data notification request aiming at a PDU session of the UE in the non-3 GPP access is received, judging whether the PDU session can be reactivated in the 3GPP access according to the obtained information for representing whether the PDU session can be reactivated in the 3GPP access;
s202, if the PDU session can be reactivated in the 3GPP access, the UE is paged through the 3GPP access.
For the determination in step S201 whether the PDU session can be reactivated in the 3GPP access, after the determination, if the PDU session cannot be reactivated in the 3GPP access, the method may include the following two embodiments to determine whether to page the UE, specifically:
the first method is as follows: and sending a reply message aiming at the data notification request, wherein the reply message carries a rejection reason.
As shown in fig. 3, for the first mode, the specific method for paging the UE is:
executing step S301, wherein the step S301 is the same as the step S201;
if the PDU session can be reactivated in the 3GPP access, executing step S302, and paging the UE through the 3GPP access;
if it is determined that the PDU session cannot be reactivated in the 3GPP access, the step S303a is executed to send a reply message for the data notification request, where the reply message carries a reject reason.
The second method comprises the following steps: judging whether to page the UE through the 3GPP access or not based on whether available non-3 GPP access exists around the UE;
paging the UE through the 3GPP access if there is a non-3 GPP access available around the UE;
and if no available non-3 GPP access exists around the UE, sending a reply message aiming at the data notification request, wherein the reply message carries a rejection reason.
In the second mode, it may be determined whether there is available non-3 GPP access around the UE, so as to determine whether to page the UE through 3GPP access (the following is an example, which is not exhaustive, and other modes that can be foreseen by those skilled in the art may also be used to determine whether to page the UE through 3GPP access):
mode 2 a: and judging whether available non-3 GPP access exists around the position of the UE or not based on the position of the UE, and judging whether available non-3 GPP access exists around the position of the UE. Specifically, if it is determined that there is an available non-3 GPP access at the location where the UE is located, the UE is paged through the 3GPP access.
And if the UE is determined to be located at the position without available non-3 GPP access, sending a reply message aiming at the data notification request, wherein the reply message carries a rejection reason.
Specifically, the mobile network automatically determines whether non-3 GPP access exists around the UE according to the location information of the UE, so as to determine whether to page the UE through the 3GPP access.
For example, the AMF may obtain a correspondence between a 3GPP access coverage and a non-3 GPP access coverage. If the position (such as a 3GPP cell) of the UE has available non-3 GPP access coverage, the AMF considers that the current position of the UE has non-3 GPP access, otherwise, the AMF considers that the current position of the UE has no non-3 GPP access.
Or, the AMF determines whether a non-3 GPP access network allowed to be used by the UE exists in the current location of the UE according to the configured network deployment information. Example network deployment information: the available non-3 GPP access network for < cell 1, cell 2> is WLAN1, and the available non-3 GPP access network for < cell 2, cell 3> is WLAN 2.
Alternatively, if the UE has stayed in the current location for a while, but the UE is still in an idle state in a state of non-3 GPP access, the AMF considers that there is no available non-3 GPP access network around the UE.
Mode 2 b: and judging whether to page the UE through the 3GPP access or not based on the received message which is sent by the UE and whether the available non-3 GPP access is monitored or not. Specifically, if a message sent by the UE and monitoring available non-3 GPP access is received, the UE is paged through the 3GPP access; or, if a message sent by the UE that an available non-3 GPP access is not monitored is received, sending a reply message for the data notification request, where the reply message carries a reject reason.
Specifically, for example, after the UE is in an idle state in the non-3 GPP access, the UE continuously monitors information of the available non-3 GPP access around the UE, and if the UE does not monitor the information of the available non-3 GPP access, the UE sends a notification message to the AMF, where the notification message carries a prompt message, and the prompt message indicates that there is no available non-3 GPP access around the UE. The AMF stores this information in the context of the PDU session for the UE and returns a reply message to the UE. The step of returning the reply message to the UE is an optional step, and the AMF may not return the reply message to the UE.
When the UE monitors available non-3 GPP access, if the UE does not want to immediately enter a connected state (e.g., no data transmission requirement), the UE sends a notification message to the AMF, where the notification message carries a hint information indicating that available non-3 GPP access exists around the UE. The AMF updates context information of a PDU session of the UE.
Before performing step S201 or S301, the method may further include:
and in the process that the UE establishes the PDU session in the non-3 GPP access, obtaining information which is sent by the UE and used for representing whether the PDU session can be reactivated in the 3GPP access.
Specifically, when the UE establishes the PDU session through the Non-3 GPP access, a Non-access stratum (NAS) message sent by the UE to the AMF carries, in addition to parameters such as a PDU session ID and a PDU session request, information on whether to reactivate the PDU session through the 3GPP access. When the AMF receives the information, the AMF stores the information in the context of the UE.
In order to ensure that the information obtained by the mobile network whether the PDU session can be reactivated in the 3GPP access is for the PDU session corresponding to the information, the information obtained whether the PDU session can be reactivated in the 3GPP access needs to be maintained, and the maintenance method is, for example:
1) if the UE has established a PDU session in the non-3 GPP access, obtaining information used for representing whether the PDU session after updating and modification can be reactivated in the 3GPP access based on the received registration request information sent by the UE; wherein, the registration request message carries information for characterizing whether the modified PDU session can be reactivated in the 3GPP access.
If the UE is in a connected state in the non-3 GPP access, the UE sends a registration request message to the mobile network through the non-3 GPP access, the mobile network obtains information whether the modified PDU session can be reactivated in the 3GPP access according to the registration request message (meanwhile, the original information is deleted or the new information can cover the original information), and the mobile network returns a registration acceptance message to the UE.
If the UE is in an idle state in the non-3 GPP access, the UE sends a registration request message to the mobile network through the 3GPP access, the mobile network obtains information whether the modified PDU session can be reactivated in the 3GPP access (and simultaneously deletes the original information) according to the registration request message, and the mobile network returns a registration acceptance message to the UE.
Specifically, for example, the UE establishes a PDU session through the non-3 GPP access, and the PDU session establishment procedure is as follows:
process 1: the PDU session established by the UE can be reactivated through 3GPP access;
1.1 UE requests to establish PDU conversation, UE sends PDU conversation mark, PDU conversation 1 to establish request message, and used for representing the PDU conversation can be reactivated through 3GPP access prompting message to AMF.
1.2 AMF stores PDU session identification in context of UE and information that the PDU session can be reactivated through 3GPP access. The PDU session in this process is assumed to be PDU session 1.
And (2) a process: the PDU session established by the UE can not be reactivated through the 3GPP access;
2.1 UE requests to establish PDU conversation, UE sends PDU conversation mark, PDU conversation 1 establishment request message and the prompting information that the PDU conversation can not be reactivated through 3GPP access to AMF.
2.2 AMF stores PDU session identity in context of UE and information for characterizing that PDU session 1 is not reactivated through 3GPP access. The PDU session in this process is assumed to be PDU session 2.
After performing procedure 1 and procedure 2, the registration procedure of the UE is as follows:
a) the UE sends a registration request message to the AMF, wherein the message parameters comprise information for representing the PDU session which can be reactivated through the 3GPP access or information of the PDU session which can not be reactivated through the 3GPP access; a PDU session herein may refer to the aforementioned PDU session 1 and/or PDU session 2.
b) And the AMF modifies the information stored in the UE context by the AMF according to the information and returns a registration acceptance message to the UE.
After performing procedure 1 and procedure 2, the AMF stores the context of the UE including: UE identity, < PDU session 1, reactivated by 3GPP access >, < PDU session 2, not reactivated by 3GPP access >;
in performing the registration procedure of the UE, it is assumed that the information of the "PDU session reactivated through 3GPP access" in the message transmitted by the UE to the AMF includes PDU session 1 and PDU session 2. After the registration procedure is executed, the context of the UE stored in the AMF is: UE identity, < PDU session 1, reactivateable over 3GPP access >, < PDU session 2, reactivateable over 3GPP access >.
It is assumed that the information of the "PDU session not reactivateable through 3GPP access" in the message transmitted by the UE to the AMF includes PDU session 1 and PDU session 2. After the registration procedure is performed, the context of the UE stored in the AMF is: UE identity, < PDU session 1, not reactivateable by 3GPP access >, < PDU session 2, not reactivateable by 3GPP access >.
It is assumed that the information of the "PDU session reactivated through 3GPP access" in the message transmitted by the UE to the AMF includes PDU session 2. After the registration procedure is performed, the context of the UE stored in the AMF is: UE identity, < PDU session 1, not reactivateable through 3GPP access >, < PDU session 2, reactivateable through 3GPP access >.
2) When the PDU session is released, deleting the obtained information for characterizing whether the PDU session can be reactivated within the 3GPP access. Specifically, for example, the mobile network stores the obtained information on whether the PDU session can be reactivated in the 3GPP access, and if the PDU session is released and the stored information on whether the PDU session can be reactivated in the 3GPP access is not useful, the stored information is deleted. For example, after the PDU session of the UE moves to the 3GPP access, the AMF deletes the received information. The UE locally deletes the information as well.
3) And when the PDU session is reactivated in the 3GPP access, deleting the obtained information for representing whether the PDU session can be reactivated in the 3GPP access. Specifically, for example, the mobile network stores the obtained information on whether the PDU session can be reactivated in the 3GPP access, and when the PDU session is reactivated in the 3GPP access, the information on whether the PDU session can be reactivated in the 3GPP access, which is stored in the mobile network, is not used, the stored information is deleted.
The information maintenance is performed after obtaining the information sent by the UE to characterize whether the PDU session can be reactivated in the 3GPP access, or may be performed at any time after obtaining the information sent by the UE to characterize whether the PDU session can be reactivated in the 3GPP access, if the above three situations occur, the information maintenance is performed. Specifically, for example, after obtaining the information sent by the UE for characterizing whether the PDU session can be reactivated within the 3GPP access and before performing step S201; or after obtaining the information sent by the UE to characterize whether the PDU session can be reactivated in the 3GPP access, and performing other steps after performing steps S201 and S202, maintaining the information. This is by way of example only and is not intended to be limiting.
Referring to fig. 4, to better understand the present embodiment, a session management method is illustrated, where a UE is in an idle state in a non-3 GPP access, and for a PDU session established by the UE through the non-3 GPP access, the method includes the following specific steps:
s401, the AMF receives a data notification request sent by the SMF, and the data notification request carries the ID of the PDU session.
The data notification request is, for example, that the SMF sends an N11 message to the AMF, where the message carries a PDU session ID. Specifically, when the UPF receives downlink data (information of a RAN (Radio Access Network) corresponding to the downlink data does not exist in a PDU session), the UPF sends a notification message for the downlink data to the SMF, where the notification message carries a PDU session ID; according to the notification message, the SMF sends an N11 message to the AMF, wherein the N11 message indicates that the mobile network requires to send downlink data to the UE;
s402, judging whether to reactivate the PDU conversation through the 3GPP access. Wherein, the PDU session is a PDU session established by the UE through the non-3 GPP access. Specifically, the AMF determines according to information sent by the UE to characterize whether the PDU session can be reactivated within the 3GPP access. According to the judgment result, two situations can be specifically distinguished:
if the PDU session can be activated, step S403a is performed, and the AMF pages the UE through the 3GPP access. I.e., the AMF sends a paging message to the RAN.
If the PDU session cannot be activated, step S403b is executed, in which the AMF sends an N11 message to the SMF, and rejects the data notification request of the SMF, where the N11 message carries a rejection reason, that is, cannot be paged.
After performing S403b, the SMF sends a discard downstream data notification to the UPF. The UPF discards the downlink data it receives after receiving the message.
Alternatively, in step S403b, it may be further determined whether to page the UE through the 3GPP access by determining whether the UE can enter a connected state in the non-3 GPP access.
As shown in fig. 5A, a second embodiment of the present invention provides a session management apparatus, including:
a first determining module 501, configured to, when a user equipment UE is in an idle state in a non-3 GPP access, if a data notification request for a PDU session of the UE in the non-3 GPP access is received, determine whether the PDU session can be reactivated in the 3GPP access according to information obtained to characterize whether the PDU session can be reactivated in the 3GPP access;
a first sending module 502, configured to send a paging message to the UE through a 3GPP access to page the UE in the 3GPP access or send a notification message to the UE through the 3GPP access if the PDU session can be reactivated in the 3GPP access; and sending a paging message to the UE through the 3GPP access, namely paging the UE through the 3GPP access.
After the first determining module 501 determines whether the PDU session can be reactivated in the 3GPP access, if the PDU session cannot be reactivated in the 3GPP access, the apparatus may further include the following modules to determine whether to page the UE, which is specifically divided into two implementation manners:
as shown in fig. 5B, in a first manner, the apparatus further includes a second sending module 503, which sends a reply message for the data notification request, where the reply message carries a reject reason.
As shown in fig. 5C, in a second manner, the apparatus further includes a second determining module 504, which determines whether to page the UE through the 3GPP access based on whether there is an available non-3 GPP access around the UE.
Specifically, the apparatus further includes a second paging module and/or a third sending module, where the second paging module is configured to page the UE through a 3GPP access if there is an available non-3 GPP access around the UE. A third sending module, configured to send a reply message for the data notification request if no available non-3 GPP access exists around the UE, where the reply message carries a reject reason.
The second determining module 504 includes a first determining sub-module or a second determining sub-module:
the first judging submodule is used for judging whether the UE is paged through the 3GPP access or not based on whether available non-3 GPP access exists around the position where the UE is located;
specifically, the first determining sub-module determines whether available non-3 GPP access exists around the location where the UE is located, and determines whether available non-3 GPP access exists around the location where the UE is located based on the location where the UE is located. Specifically, if it is determined that there is an available non-3 GPP access at the location where the UE is located, the UE is paged through the 3GPP access.
And if the UE is determined to be located at the position without available non-3 GPP access, sending a reply message aiming at the data notification request, wherein the reply message carries a rejection reason.
Specifically, for example, the first determining sub-module determines whether non-3 GPP access exists around the UE according to the location information of the UE, so as to determine whether to page the UE through the 3GPP access.
The AMF may obtain a correspondence between a 3GPP access coverage and a non-3 GPP access coverage. If the position (such as a 3GPP cell) of the UE has available non-3 GPP access coverage, the AMF considers that the current position of the UE has non-3 GPP access, otherwise, the AMF considers that the current position of the UE has no non-3 GPP access.
The second determining sub-module is configured to determine whether to page the UE through the 3GPP access based on a received message sent by the UE and indicating whether to monitor an available non-3 GPP access.
Specifically, if a message sent by the UE and monitoring available non-3 GPP access is received, the UE is paged through the 3GPP access; or, if a message sent by the UE that an available non-3 GPP access is not monitored is received, sending a reply message for the data notification request, where the reply message carries a reject reason.
Specifically, for example, after the UE is in an idle state in the non-3 GPP access, the UE continuously monitors information of the available non-3 GPP access around the UE, and if the UE does not monitor the information of the available non-3 GPP access, the UE sends a notification message to the AMF, where the notification message carries a prompt message, and the prompt message indicates that there is no available non-3 GPP access around the UE. The AMF stores this information in the context of the PDU session for the UE and returns a reply message to the UE. The step of returning the reply message to the UE is an optional step, and the AMF may not return the reply message to the UE.
When the UE monitors available non-3 GPP access, if the UE does not want to immediately enter a connected state (e.g., no data transmission requirement), the UE sends a notification message to the AMF, where the notification message carries a hint information indicating that available non-3 GPP access exists around the UE. The AMF updates context information of a PDU session of the UE.
The apparatus further includes a first obtaining module, where before the first determining module 501 determines whether the PDU session can be reactivated in the 3GPP access, the first obtaining module obtains, in a process that the UE establishes the PDU session in the non-3 GPP access, information sent by the UE to characterize whether the PDU session can be reactivated in the 3GPP access. Specifically, when the UE establishes the PDU session through the non-3 GPP access, the NAS message sent by the UE to the AMF carries, in addition to carrying parameters such as the PDU session ID and the PDU session request, information on whether to reactivate the PDU session through the 3GPP access. When the AMF receives the information, the AMF stores the information in the context of the PDU session of the UE.
In order to ensure that the information obtained by the first obtaining module whether the PDU session can be reactivated in the 3GPP access is for the PDU session corresponding to the information, the obtained information whether the PDU session can be reactivated in the 3GPP access needs to be maintained, and the maintaining manner is, for example:
(1) the apparatus further includes a second obtaining module, configured to, after obtaining the information sent by the UE to characterize whether the PDU session can be reactivated within the 3GPP access, obtain information of an updated PDU session characterizing whether the PDU session can be reactivated within the 3GPP access based on the received registration request information sent by the UE if the PDU session has been established by the UE within the non-3 GPP access; wherein, the registration request message carries information for characterizing whether the modified PDU session can be reactivated in the 3GPP access.
If the UE is in a connected state in the non-3 GPP access, the UE sends a registration request message to a second obtaining module through the non-3 GPP access, the second obtaining module obtains information whether the modified PDU session can be reactivated in the 3GPP access according to the registration request message (meanwhile, original information is deleted or new information can cover the original information), and the mobile network returns a registration acceptance message to the UE.
If the UE is in idle state in the non-3 GPP access, the UE sends a registration request message to a second obtaining module through the 3GPP access, the second obtaining module obtains information whether the modified PDU session can be reactivated in the 3GPP access (meanwhile, original information is deleted) according to the registration request message, and the mobile network returns a registration acceptance message to the UE.
Specifically, for example, the UE establishes a PDU session through the non-3 GPP access, and the PDU session establishment procedure is as follows:
process 1: the PDU session established by the UE can be reactivated through 3GPP access;
1.1 UE requests to establish PDU conversation, UE sends PDU conversation mark, PDU conversation 1 to establish request message, and used for representing the PDU conversation can be reactivated through 3GPP access prompting message to AMF.
1.2 AMF stores PDU session identification in context of UE and information that the PDU session can be reactivated through 3GPP access. The PDU session in this process is assumed to be PDU session 1.
And (2) a process: the PDU session established by the UE can not be reactivated through the 3GPP access;
2.1 UE requests to establish PDU conversation, UE sends PDU conversation mark, PDU conversation 1 establishment request message and the prompting information that the PDU conversation can not be reactivated through 3GPP access to AMF.
2.2 AMF stores PDU session identity in context of UE and information for characterizing that PDU session 1 is not reactivated through 3GPP access. The PDU session in this process is assumed to be PDU session 2.
After performing procedure 1 and procedure 2, the registration procedure of the UE is as follows:
a) the UE sends a registration request message to the AMF, wherein the message parameters comprise information for representing the PDU session which can be reactivated through the 3GPP access or information of the PDU session which can not be reactivated through the 3GPP access; a PDU session herein may refer to the aforementioned PDU session 1 and/or PDU session 2.
b) And the AMF modifies the information stored in the UE context by the AMF according to the information and returns a registration acceptance message to the UE.
After performing procedure 1 and procedure 2, the AMF stores the context of the UE including: UE identity, < PDU session 1, reactivated by 3GPP access >, < PDU session 2, not reactivated by 3GPP access >;
in performing the registration procedure of the UE, it is assumed that the information of the "PDU session reactivated through 3GPP access" in the message transmitted by the UE to the AMF includes PDU session 1 and PDU session 2. After the registration procedure is executed, the context of the UE stored in the AMF is: UE identity, < PDU session 1, reactivateable over 3GPP access >, < PDU session 2, reactivateable over 3GPP access >.
It is assumed that the information of the "PDU session not reactivateable through 3GPP access" in the message transmitted by the UE to the AMF includes PDU session 1 and PDU session 2. After the registration procedure is performed, the context of the UE stored in the AMF is: UE identity, < PDU session 1, not reactivateable by 3GPP access >, < PDU session 2, not reactivateable by 3GPP access >.
It is assumed that the information of the "PDU session reactivated through 3GPP access" in the message transmitted by the UE to the AMF includes PDU session 2. After the registration procedure is performed, the context of the UE stored in the AMF is: UE identity, < PDU session 1, not reactivateable through 3GPP access >, < PDU session 2, reactivateable through 3GPP access >.
(2) The apparatus further includes a deletion module, configured to delete, after the obtaining of the information sent by the UE to characterize whether the PDU session can be reactivated within the 3GPP access, the obtained information to characterize whether the PDU session can be reactivated within the 3GPP access when the PDU session is released or the PDU session is reactivated within the 3GPP access.
For example, the mobile network stores the obtained information on whether the PDU session can be reactivated in the 3GPP access, and if the PDU session is released and the stored information on whether the PDU session can be reactivated in the 3GPP access is not useful, the deleting module deletes the stored information. The deletion module deletes the information received by the AMF, for example, after the PDU session of the UE moves to the 3GPP access. The UE locally deletes the information as well.
Or, the mobile network stores the obtained information whether the PDU session can be reactivated in the 3GPP access, and when the PDU session is reactivated in the 3GPP access, the information whether the PDU session can be reactivated in the 3GPP access, which is stored in the mobile network, is not used, and the deleting module deletes the stored information.
In addition, the specific example of the apparatus is AMF, and the method steps of the operation principle of the AMF are the same as those of the embodiment, and are not described herein again.
A third embodiment of the present invention provides a computer apparatus, which includes a processor, and the processor is configured to implement the steps of the method according to the first embodiment when executing the computer program stored in the memory.
A fourth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method as described in the first embodiment.
The technical scheme in the embodiment of the invention at least has the following technical effects or advantages:
for a PDU session established by a user terminal UE in non-3 GPP access, judging whether to page the UE through the 3GPP access according to the obtained information whether to reactivate the PDU session in the 3GPP access or further in combination with available non-3 GPP access existing around the UE, avoiding unnecessary paging in the session management process and reducing resource waste.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (16)

1. A session management method, comprising:
when a user terminal UE is in an idle state in a non-3 GPP access, if a data notification request aiming at a PDU session of the UE in the non-3 GPP access is received by an access control and mobility management function (AMF), judging whether the PDU session can be reactivated in the 3GPP access according to the obtained information for representing whether the PDU session can be reactivated in the 3GPP access;
and if the PDU session cannot be reactivated in the 3GPP access and the non-3 GPP access available around the UE is judged, paging the UE through the 3GPP access or sending a notification message to the UE through the 3GPP access.
2. The method of claim 1, wherein the method further comprises:
and if the PDU session can not be reactivated in the 3GPP access, sending a reply message aiming at the data notification request, wherein the reply message carries a rejection reason.
3. The method of claim 1, wherein the method further comprises:
and if no available non-3 GPP access exists around the UE, sending a reply message aiming at the data notification request, wherein the reply message carries a rejection reason.
4. The method according to any of claims 1 to 3, wherein if the PDU session cannot be reactivated within a 3GPP access, the method further comprises:
judging whether the UE is paged through the 3GPP access or not based on whether available non-3 GPP access exists around the position where the UE is located; or
And judging whether to page the UE through the 3GPP access or not based on the received message which is sent by the UE and whether the available non-3 GPP access is monitored or not.
5. The method according to any of claims 1-3, wherein if a data notification request for a PDU session of the UE within a non-3 GPP access is received while the user equipment UE is in an idle state within the non-3 GPP access, before determining whether the PDU session can be reactivated within a 3GPP access according to the obtained information characterizing whether the PDU session can be reactivated within a 3GPP access, the method further comprises:
and in the process that the UE establishes the PDU session in the non-3 GPP access, obtaining information which is sent by the UE and used for representing whether the PDU session can be reactivated in the 3GPP access.
6. The method of claim 5, wherein after the obtaining information sent by the UE characterizing whether the PDU session can be reactivated within a 3GPP access, the method further comprises:
if the UE has established a PDU session in the non-3 GPP access, obtaining information for representing whether an updated PDU session can be reactivated in the 3GPP access based on the received registration request information sent by the UE; wherein, the registration request message carries information for representing whether the updated PDU session can be reactivated in the 3GPP access.
7. The method of claim 5, wherein after the obtaining information sent by the UE characterizing whether the PDU session can be reactivated within a 3GPP access, the method further comprises:
deleting the obtained information characterizing whether the PDU session can be reactivated within the 3GPP access when the PDU session is released or the PDU session is reactivated within the 3GPP access.
8. A session management apparatus, comprising:
a first determining module, configured to, when a user equipment UE is in an idle state in a non-3 GPP access, determine, according to information obtained for characterizing whether a PDU session can be reactivated in the 3GPP access, whether the PDU session can be reactivated in the 3GPP access, if an access control and mobility management function (AMF) receives a data notification request for the PDU session of the UE in the non-3 GPP access;
a first sending module, configured to send a paging message to the UE through a 3GPP access to page the UE in the 3GPP access or send a notification message to the UE through the 3GPP access if the PDU session cannot be reactivated in the 3GPP access and it is determined that there is an available non-3 GPP access around the UE.
9. The apparatus of claim 8, wherein the apparatus further comprises:
a second sending module, configured to send a reply message for the data notification request if the PDU session cannot be reactivated in the 3GPP access, where the reply message carries a reject reason.
10. The apparatus of claim 8, wherein the apparatus further comprises:
a third sending module, configured to send a reply message for the data notification request if no available non-3 GPP access exists around the UE, where the reply message carries a reject reason.
11. The apparatus according to any one of claims 8 to 10, further comprising a second determining module, wherein the second determining module comprises:
a first judging submodule, configured to judge whether to page the UE through the 3GPP access based on whether there is an available non-3 GPP access around a location where the UE is located; or
And the second judging submodule is used for judging whether to page the UE through the 3GPP access or not based on the received message which is sent by the UE and whether to monitor the available non-3 GPP access or not.
12. The apparatus of any one of claims 8 to 10, further comprising a first obtaining module:
when the user terminal UE is in idle state in non-3 GPP access, if receiving a data notification request aiming at PDU session of the UE in the non-3 GPP access, judging whether the PDU session can be reactivated in the 3GPP access according to the obtained information for representing whether the PDU session can be reactivated in the 3GPP access,
the first obtaining module is configured to obtain, during a process of establishing a PDU session in a non-3 GPP access by the UE, information sent by the UE and used for characterizing whether the PDU session can be reactivated in the 3GPP access.
13. The apparatus of claim 12, wherein the apparatus further comprises a second obtaining module:
after the obtaining of the information sent by the UE to characterize whether the PDU session can be reactivated within a 3GPP access,
the second obtaining module is configured to, if the UE has established a PDU session in the non-3 GPP access, obtain information characterizing whether an updated PDU session that can be reactivated in the 3GPP access is available based on the received registration request information sent by the UE; wherein, the registration request message carries information for representing whether the updated PDU session can be reactivated in the 3GPP access.
14. The apparatus of claim 12, wherein the apparatus further comprises a deletion module:
after the obtaining of the information sent by the UE to characterize whether the PDU session can be reactivated within a 3GPP access,
the deleting module is configured to delete the obtained information characterizing whether the PDU session can be reactivated in the 3GPP access when the PDU session is released or the PDU session is reactivated in the 3GPP access.
15. A computer arrangement, characterized in that the arrangement comprises a processor for implementing the steps of the method according to any one of claims 1-7 when executing a computer program stored in a memory.
16. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program realizing the steps of the method according to any one of claims 1-7 when executed by a processor.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110366219B (en) 2018-04-09 2021-06-15 华为技术有限公司 Signaling processing method and device
CN111866700B (en) * 2019-04-02 2023-02-28 大唐移动通信设备有限公司 Method, equipment and device for selecting positioning information
EP3952596B1 (en) * 2019-05-07 2024-05-01 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Information transmission method and apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101448294A (en) * 2008-01-21 2009-06-03 华为技术有限公司 Method for releasing and processing network resources and equipment thereof
CN102638877A (en) * 2006-03-27 2012-08-15 松下电器产业株式会社 Sleep-state and service initiation for mobile terminal
CN104641718A (en) * 2012-09-14 2015-05-20 交互数字专利控股公司 System enhancements for enabling non-3GPP offload in 3GPP

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8666410B2 (en) * 2008-09-22 2014-03-04 Htc Corporation Method of controlling cell selection for a wireless communication system and related device
US9661546B2 (en) * 2014-01-29 2017-05-23 Mediatek Inc. Dynamic offload selection in mobile communication systems
US10070455B2 (en) * 2014-03-28 2018-09-04 Lg Electronics Inc. Method and apparatus for prioritizing D2D transmission and D2D reception in wireless communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102638877A (en) * 2006-03-27 2012-08-15 松下电器产业株式会社 Sleep-state and service initiation for mobile terminal
CN101448294A (en) * 2008-01-21 2009-06-03 华为技术有限公司 Method for releasing and processing network resources and equipment thereof
CN104641718A (en) * 2012-09-14 2015-05-20 交互数字专利控股公司 System enhancements for enabling non-3GPP offload in 3GPP

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
23.501 - PDU session mobility between 3GPP and non-3GPP;Qualcomm Incorporated;《《SA WG2 Meeting #S2-120 S2-172519》》;20170330;全文 *
TS 23.501: PDU session management for non 3GPP and UE reachability;Qualcomm Incorporated等;《《SA WG2 Meeting #S2-120 S2-172487》》;20170329;全文 *

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