WO2019047209A1 - Session management method and terminal - Google Patents
Session management method and terminal Download PDFInfo
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- WO2019047209A1 WO2019047209A1 PCT/CN2017/101208 CN2017101208W WO2019047209A1 WO 2019047209 A1 WO2019047209 A1 WO 2019047209A1 CN 2017101208 W CN2017101208 W CN 2017101208W WO 2019047209 A1 WO2019047209 A1 WO 2019047209A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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- an AMF entity having the functionality to implement the AMF entity behavior of the fourth aspect described above and its alternative implementation or sixth aspect.
- the functions may be implemented by hardware or by corresponding software implemented by hardware.
- the hardware or software includes one or more modules corresponding to the functions described above.
- the LADN information includes the LADN data network name (LADN DNN) and the LADN service area (LADN service area).
- LADN service area may refer to the TA set of the LADN.
- the SMF can trigger a user plane connection that activates the PDU session
- the terminal enters the second RA including the information of the LADN by the first RA that does not include the information of the LADN;
- the SMF may also perform one or more of the following steps: notifying the UPF to set the gating corresponding to the PDU session accessing the LADN to ON; notifying the UPF to send the DDN related to the PDU session accessing the LADN; notifying the UPF to send Downlink data related to the PDU session accessing the LADN.
- the SMF may also release the PDU session accessing the LADN. For example, if the PDU session accessing the LADN is in an available state, after the SMF receives the notification information that the current RA does not include the LADN information, the PDU session that accesses the LADN is released.
- the terminal notifies the SMF to modify the PDU session
- the SMF invokes a first service provided by the AMF, where the first service is used by the SMF to request the AMF to send a message or information, such as N2SM information, to the access node AN.
- the message or information sent by the SMF to the access node AN through the AMF is used to instruct the SMF to request the AMF to send the message or information to the AN.
- the AMF can save information that has sent indication parameters to the SMF.
- the SMF may be notified to re-enable the PDU session of the access LADN for data transmission, thereby managing the PDU session from a finer granularity, and making the network device to the terminal Paging is more reasonable and saves Signaling has improved efficiency.
- the UPF is notified to stop sending the downlink data notification DDN corresponding to the PDU session to the SMF.
- FIG. 10 is another example provided by an embodiment of the present application. As shown in FIG. 10, the method specifically includes the following steps:
- the AMF sends a notification message to the SMF.
- the AMF needs to send the notification information to the SMF when it is determined in S1002 that the available state of the LADN of the terminal changes.
- the notification information can be referred to the description in the embodiment shown in FIG.
- the receiving unit 1101 is further configured to receive a first session modification command message sent by the SMF, where the first session modification command message includes an identifier of the PDU session and a first parameter, and an identifier of the PDU session For identifying the PDU session, the first parameter is used to indicate that the PDU session is unavailable.
- the receiving unit 1201 is configured to receive a session modification request message sent by the terminal, where the session modification request message includes an indication, where the indication is used to indicate that the registration area includes or does not include information of the LADN;
- the information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;
- the first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area; or
- the sending unit 1602 is configured to send an indication parameter to the SMF when the service area of the LADN is not included in the registration area of the terminal, where the indication parameter is used to indicate that the LADN information is not included in the registration area.
- it also includes:
- the second RA is an RA before the terminal enters the first RA.
- the second RA is an RA before the terminal enters the first RA.
- Information in the first registration area is changed from information including the LADN to information not including the LADN;
- notify the user plane function entity UPF When the notification information is used to notify that the registration area of the terminal does not include the information of the LADN, notify the user plane function entity UPF to discard the downlink data corresponding to the PDU session; notify the UPF to stop sending the PDU to the SMF. The downlink data corresponding to the session is notified to the DDN;
- FIG. 21 is a schematic structural diagram of another SMF provided by an embodiment of the present application.
- the SMF includes a transceiver 2101 for communicating with an AMF, a UPF or a terminal, and a memory 2103 for storing a program; the processor 2102 is for storing a program; The program stored in the memory is executed to perform the steps performed by the SMF in Fig. 9 described above.
- the SMF has a PDU session accessing the LADN, and the SMF includes:
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Abstract
The embodiments of the present application relate to a session management method and terminal. The method comprises: a terminal receiving a first message, sent by an access and mobility management function (AMF) entity, said first message comprising or not comprising information of a local area data network (LADN); according to the first message, the terminal determining that a change has occurred in the state of availability of the LADN; the terminal modifying or releasing the PDU session. The embodiments of the present application reduce the data loss caused by modifying a network or releasing a PDU session when a terminal is in an idle state, and also reduce signaling waste caused by a network device paging a terminal when the PDU session of the accessed LADN has downlink data that has arrived.
Description
本申请实施例涉及通信技术领域,尤其涉及一种会话管理的方法及终端。The embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and a terminal for session management.
在5G网络中,中引入了本地区域数据网络(Local Area Data Network,LADN)的概念,终端在注册过程(Registration Procedure)时,接入与移动功能实体(access and mobility management function,AMF)向终端提供LADN信息(例如,LADN可用信息(LADN availability information)),LADN availability information包括LADN数据网络名称(LADN data network name,LADN DNN)和LADN的服务区域内(LADN Service Area),该LADN的服务区域为终端注册区域内的一组特定的跟踪域(tracking area,TA),当终端位于LADN Service Area之内时,才可以建立与该LADN的协议数据单元(Packet Data Unit,PDU)会话,当终端移出LADN Servcie Area后,将无法实现基于LADN的数据的传输。In the 5G network, the concept of a Local Area Data Network (LADN) is introduced. When the terminal is in the Registration Procedure, the access and mobility management function (AMF) is directed to the terminal. Provide LADN information (for example, LADN availability information), LADN availability information includes LADN data network name (LADN DNN) and LADN service area (LADN Service Area), the service area of the LADN For a specific tracking area (TA) in the terminal registration area, when the terminal is located within the LADN Service Area, a protocol data unit (PDU) session with the LADN can be established. After the LADN Servcie Area is removed, the transfer of LADN-based data will not be possible.
通常接入与移动功能实体(Access and Mobility Management Function,AMF)向会话管理实体(Session Management Function,SMF)提供终端是否在LADNService Area的信息,以便SMF确定终端能否建立接入LADN的会话,或者对当前已经建立的LADN的会话进行管理,从而保证终端只有在LADN Service Area内时才能传输基于LADN的数据。Generally, the Access and Mobility Management Function (AMF) provides a session management function (SMF) with information about whether the terminal is in the LADN Service Area, so that the SMF determines whether the terminal can establish a session for accessing the LADN, or The session of the currently established LADN is managed to ensure that the LADN-based data can be transmitted only when the terminal is in the LADN Service Area.
在SMF确定终端移出LADN的服务区域后,可以通知用户面功能(user plane function,UPF)丢弃该接入LADN的会话的下行数据或者停止向SMF发送该会话相关的下行数据通知(Downlink Data Notification,DDN),但是,当终端处于空闲态时,则可能会造成数据丢失。在SMF确定终端移出LADN的服务区域后,SMF不通知UPF丢弃该会话的下行数据或者停止向SMF发送该会话相关的DDN,此时,则可能会浪费信令资源。After the SMF determines that the terminal moves out of the service area of the LADN, the user plane function (UPF) may be notified to discard the downlink data of the session accessing the LADN or stop sending the downlink data notification related to the session to the SMF (Downlink Data Notification, DDN), however, when the terminal is in an idle state, data loss may occur. After the SMF determines that the terminal moves out of the service area of the LADN, the SMF does not notify the UPF to discard the downlink data of the session or stop sending the DDN related to the session to the SMF. At this time, signaling resources may be wasted.
发明内容Summary of the invention
本申请实施例提供了一种会话管理的方法及设备。以实现对于接入LADN的会话的管理,降低数据丢失或者信令浪费的问题。The embodiment of the present application provides a method and a device for session management. To achieve the management of the session accessing the LADN, the problem of data loss or signaling waste is reduced.
第一方面,提供了一种会话管理的方法。其中,终端存在接入LADN的PDU会话,该方法包括:终端在第一注册区域(registration area,RA)内接收接入与移动管理功能实体AMF发送的第一消息,所述第一消息包括或者不包括所述LADN的信息;其中,所述第一RA为所述终端的当前注册区域;所述终端根据第一消息确定所述LADN的可用状态发生变化;终端修改或者释放所述PDU会话。其中,第一消息可以为注册接受消息(Registration Accept)或者UE配置更新命令消息(UE Configration Update Command),LADN的信息可以为LADN的可用信息。通过本申请实施例,对于LADN的会话,当终端从由支持LADN的信息的注册区域进入到不支持LADN的信息注册区域时,由终端修改或释放PDU会话,或者,终端由不支持LADN的信息的注册区域进入到支持LADN的信息的注册区域时,由终端修改PDU会话,从而减少了由于终端处于空闲态时,由于所
述的注册区域不包括LADN信息,网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。In a first aspect, a method of session management is provided. The terminal has a PDU session that accesses the LADN. The method includes: receiving, by the terminal, a first message sent by the access and mobility management function entity AMF in a first registration area (RA), where the first message includes or The information of the LADN is not included; wherein the first RA is a current registration area of the terminal; the terminal determines, according to the first message, that an available state of the LADN changes; the terminal modifies or releases the PDU session. The first message may be a Registration Accept message or a UE Configration Update Command (UE Configration Update Command), and the LADN information may be available information of the LADN. With the embodiment of the present application, for the LADN session, when the terminal enters the information registration area that does not support the LADN from the registration area of the information supporting the LADN, the terminal modifies or releases the PDU session, or the terminal does not support the LADN information. When the registration area enters the registration area of the information supporting the LADN, the terminal modifies the PDU session, thereby reducing the time when the terminal is in the idle state.
The registration area does not include the LADN information, and the network device wastes signaling caused by paging the terminal because the downlink data arrives in the PDU session of the access LADN.
可以理解的是,第一消息中不包括LADN的信息,具体可以为第一消息中无LADN信息,或者第一消息中LADN的信息为空,或者第一消息中包括其他指示信息指示无LADN的信息,本发明不做具体限制。It can be understood that the LADN information is not included in the first message, and the LADN information in the first message is not available, or the LADN information in the first message is empty, or the first message includes other indication information indicating that there is no LADN. The information is not specifically limited in the present invention.
需要说明的是,终端存在接入LADN的PDU会话,可以指终端保存有接入LADN的PDU会话的上下文,其中PDU会话的上下文可以包括下述的一项或者多项:PDU会话的标识;PDU会话的会话服务连续性(session service continuity,SSC)模式;PDU会话的类型(例如IP类型),以太(ethernet)类型,非结构化(unstructured)类型等;PDU会话对应的数据网络名称(data network name,DNN);PDU会话对应的网络切片信息(例如单一网络切片选择辅助信息(single network slice selection information,S-NSSAI)),网络切片标识(NSI)等;PDU会话的服务质量流标识(QoS flow identifier,QFI),QoS流对应的QoS参数,例如5G服务质量指示(5G QoS indicator,5QI),保证流比特率(guaranteed flow bit rate,GFBR),最大流比特率(maximum flow bit rate,MFBR),会话聚合最大比特速率(session aggregate maximum bit rate,Session-AMBR),PDU会话对应的无线承载信息,例如数据无线承载(data radio bearer,DRB),也可以指UE建立有接入LADN的PDU会话,终端可以通过该PDU会话传输上下行数据。具体地,接入LAND的PDU会话是指PDU会话对应的DNN属性为LADN DNN。It should be noted that the terminal has a PDU session accessing the LADN, and the terminal may save the context of the PDU session in which the LADN is accessed, where the context of the PDU session may include one or more of the following: an identifier of the PDU session; Session service continuity (SSC) mode of the session; type of PDU session (eg IP type), ethernet type, unstructured type, etc.; data network name corresponding to the PDU session (data network Name, DNN); network slice information corresponding to the PDU session (eg, single network slice selection information (S-NSSAI)), network slice identification (NSI), etc.; quality of service flow identification (QoS) of the PDU session Flow identifier, QFI), QoS parameters corresponding to the QoS flow, such as 5G QoS indicator (5QI), guaranteed flow bit rate (GFBR), maximum flow bit rate (MFBR) ), session aggregate maximum bit rate (Session-AMBR), radio bearer corresponding to the PDU session Information, such as data radio bearer (data radio bearer, DRB), which the UE may establish an access session LADN a PDU, the terminal may transmit data through the downlink PDU session. Specifically, the PDU session accessing the LAND means that the DNN attribute corresponding to the PDU session is the LADN DNN.
在第一方面的第一个可选地实现中,终端根据第一消息确定所述LADN的可用状态发生变化,包括:当所述第一消息不包括所述LADN的信息,进一步地,所述终端判断第二注册区域包括所述LADN的信息时,所述终端确定注册区域内所述LADN的信息发生变化;或者,当所述第一消息不包括所述LADN的信息,并且第一注册区域在收到所述第一消息之前包括所述LADN的信息时,所述终端确定注册区域内所述LADN的信息发生变化;其中,所述第一注册区域为所述终端的当前注册区域,所述第二注册区域为所述终端进入当前注册区域前的注册区域。In a first optional implementation of the first aspect, the terminal determines, according to the first message, that the available state of the LADN changes, including: when the first message does not include information of the LADN, further, the When the terminal determines that the second registration area includes the information of the LADN, the terminal determines that the information of the LADN in the registration area changes; or, when the first message does not include the information of the LADN, and the first registration area When the information of the LADN is included before the first message is received, the terminal determines that the information of the LADN in the registration area changes; wherein the first registration area is a current registration area of the terminal, where The second registration area is a registration area before the terminal enters the current registration area.
在第一方面的第二种可选地实现中,终端修改PDU会话,包括:终端向SMF发送第一会话修改请求消息,该第一会话修改请求消息包括第一指示,该第一指示用于指示当第一RA不包括LADN的信息。可以理解的是,终端还需要向SMF接入到该LADN的PDU会话的标识,该PDU会话的标识可以包括在第一会话修改请求消息中,也可以包括在终端向AMF发送的NAS消息中,再由AMF转发给SMF。通过本申请实施例可以实现,基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。In a second optional implementation of the first aspect, the terminal modifying the PDU session includes: the terminal sending a first session modification request message to the SMF, where the first session modification request message includes a first indication, where the first indication is used Indicates information when the first RA does not include the LADN. It can be understood that the terminal also needs to access the identifier of the PDU session of the LADN to the SMF. The identifier of the PDU session may be included in the first session modification request message, or may be included in the NAS message sent by the terminal to the AMF. It is then forwarded to the SMF by AMF. The PDU session can be managed based on the current registration area and the service area of the LADN, and the granularity is fine.
在第一方面的第三个可选地实现中,终端释放所述PDU会话,包括:终端向会话管理实体SMF发送会话释放请求消息。通过本申请实施例可以实现,在终端位于LADN的服务区域以外时,由终端发起PDU会话的释放,从而降低了由于PDU会话的存在,但是终端不处于LADN的服务区域时,寻呼终端造成的信令浪费。In a third optional implementation of the first aspect, the terminal releasing the PDU session includes: the terminal sending a session release request message to the session management entity SMF. The embodiment of the present application can be implemented, when the terminal is located outside the service area of the LADN, the terminal initiates the release of the PDU session, thereby reducing the existence of the PDU session, but the terminal is not in the service area of the LADN, and the paging terminal is caused by the paging terminal. Signaling is wasted.
在第一方面的第四个可选地实现中,该方法还包括:终端接收SMF发送的第一会话修改命令消息,该第一会话修改命令消息包括PDU会话的标识和第一参数,该第一参数用于指示PDU会话不可用,PDU会话的标识用于识别所述PDU会话。其中,PDU会话不可用包括以下的一项或者多项的组合:LADN会话的用户面连接已释放;已通知UPF丢
弃LADN会话的下行数据;已通知UPF停止向SMF发送该会话相关的下行数据通知(downlink data notification,DDN),和LADN会话对应的门控设置为关闭。通过本申请实施例可以实现,在网络侧修改或释放PDU会话后,通知终端,以便终端同步修改或释放该PDU会话,从而降低了由于PDU会话的存在,但是终端确不处于LADN的服务区域时,寻呼终端造成的信令浪费。In a fourth optional implementation of the first aspect, the method further includes: receiving, by the terminal, a first session modification command message sent by the SMF, where the first session modification command message includes an identifier of the PDU session and a first parameter, where the A parameter is used to indicate that the PDU session is unavailable, and the identity of the PDU session is used to identify the PDU session. The PDU session is unavailable, including one or more of the following combinations: the user plane connection of the LADN session has been released; the UPF has been notified of the loss.
The downlink data of the LADN session is discarded; the UPF is notified to stop sending the downlink data notification (DDN) related to the session to the SMF, and the gate corresponding to the LADN session is set to be closed. After the PDU session is modified or released on the network side, the terminal is notified, so that the terminal can modify or release the PDU session synchronously, thereby reducing the existence of the PDU session, but the terminal is not in the service area of the LADN. , signaling waste caused by paging terminals.
在第一方面的第五个可选地实现中,该方法还包括:终端将PDU会话标记为不可用。通过本申请实施例可以实现,终端通过对PDU会话进行标记,可以统计终端连续进入不包括LADN的服务区域的注册区域次数,从而设置规则,在连续进入不包括LADN的服务区域的注册区域小于或等于设定次数的情况下,终端修改该PDU会话,当达到或超过该设定次数的情况下,终端释放该PDU会话,对接入LADN的PDU会话的管理粒度更细。In a fifth alternative implementation of the first aspect, the method further comprises the terminal marking the PDU session as unavailable. The embodiment of the present application can be implemented that, by marking the PDU session, the terminal can count the number of times that the terminal continuously enters the registration area of the service area that does not include the LADN, thereby setting a rule, and the registration area of the service area that does not include the LADN is less than or When the number of times is equal to the set number of times, the terminal modifies the PDU session. When the set number of times is reached or exceeded, the terminal releases the PDU session, and the management granularity of the PDU session accessing the LADN is finer.
在第一方面的第六个可选地实现中,终端根据第一消息确定LADN的可用状态发生变化,包括:当所述第一消息包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内不包括所述LADN的信息时,所述终端确定所述LADN的可用状态发生变化;或者,当所述第一消息包括所述LADN的信息、且第二RA内不包括所述LADN的信息时,所述终端确定所述LADN的可用状态发生变化;所述第二RA为所述终端进入所述第一RA之前的RA。In a sixth optional implementation of the first aspect, the terminal determines, according to the first message, that the available state of the LADN changes, including: when the first message includes information of the LADN, and receives the information at the terminal When the information of the LADN is not included in the first RA before the first message, the terminal determines that the available state of the LADN changes; or when the first message includes the information of the LADN, and the second When the information of the LADN is not included in the RA, the terminal determines that the available state of the LADN changes; the second RA is the RA before the terminal enters the first RA.
在第一方面的第七个可选地实现中,该方法还包括:终端向SMF发送第二会话修改请求消息,该第二会话修改请求消息包括第二指示,该第二指示用于指示所述第一RA内不包括所述LADN的信息。通过本申请实施例可以实现,在终端重新进入包括LADN的服务区域的RA时,重新启用该接入LADN的PDU会话,以便进行数据传输,从而从更细的粒度对PDU会话进行管理,并且使得网络设备对于终端的寻呼更合理,节省了信令,提高了效率。In a seventh optional implementation of the first aspect, the method further includes: the terminal sending a second session modification request message to the SMF, where the second session modification request message includes a second indication, where the second indication is used to indicate The information of the LADN is not included in the first RA. Through the embodiment of the present application, when the terminal re-enters the RA of the service area including the LADN, the PDU session of the access LADN is re-enabled for data transmission, thereby managing the PDU session from a finer granularity, and The network device is more reasonable for the paging of the terminal, saves signaling, and improves efficiency.
在第一方面的第八个可选地实现中,该方法还包括:终端接收SMF发送的第二会话修改命令消息,该第二会话修改命令消息包括第二参数,该第二参数用于指示PDU会话可用。通过本申请实施例可以实现,网络侧与终端侧关于PDU会话状态的同步,从而降低了出现数据丢失的可能。In an eighth optional implementation of the first aspect, the method further includes: receiving, by the terminal, a second session modification command message sent by the SMF, where the second session modification command message includes a second parameter, where the second parameter is used to indicate A PDU session is available. The embodiment of the present application can implement synchronization of the PDU session state between the network side and the terminal side, thereby reducing the possibility of data loss.
在第一方面的第九个可选地实现中,该方法还包括:终端将PDU会话标记为可用。通过本申请实施例可以实现,终端通过对PDU会话进行标记,可以统计终端连续进入不包括LADN的服务区域的注册区域次数,从而设置规则,在连续进入不包括LADN的服务区域的注册区域小于或等于设定次数的情况下,终端修改该PDU会话,当达到或超过该设定次数的情况下,终端释放该PDU会话,对接入LADN的PDU会话的管理粒度更细。In a ninth alternative implementation of the first aspect, the method further comprises the terminal marking the PDU session as available. The embodiment of the present application can be implemented that, by marking the PDU session, the terminal can count the number of times that the terminal continuously enters the registration area of the service area that does not include the LADN, thereby setting a rule, and the registration area of the service area that does not include the LADN is less than or When the number of times is equal to the set number of times, the terminal modifies the PDU session. When the set number of times is reached or exceeded, the terminal releases the PDU session, and the management granularity of the PDU session accessing the LADN is finer.
通过本申请实施例,对于LADN的会话,当终端进入到不支持LADN的注册区域时,由终端修改或释放PDU会话,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。还可以基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。With the embodiment of the present application, for the session of the LADN, when the terminal enters the registration area that does not support the LADN, the terminal modifies or releases the PDU session, thereby reducing the network device because the downlink data arrives in the PDU session of the access LADN. The signaling waste caused by the calling terminal. The PDU session can also be managed based on the current registration area and the service area of the LADN, with a fine granularity.
第二方面,提供了一种会话管理的方法。其中,SMF存在终端接入LADN的PDU会话,该方法包括:SMF接收终端发送的会话修改请求消息,该会话修改请求消息包括指示,该指示用于指示注册区域包括或者不包括所述LADN的信息;SMF根据指示修改所述PDU会话,LADN的信息可以为LADN的可用信息。通过本申请实施例可以实现,基于当前注
册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。In a second aspect, a method of session management is provided. The SMF has a PDU session in which the terminal accesses the LADN, and the method includes: the SMF receiving the session modification request message sent by the terminal, where the session modification request message includes an indication, where the indication is used to indicate that the registration area includes or does not include the LADN information. The SMF modifies the PDU session according to the indication, and the LADN information may be the available information of the LADN. It can be realized by the embodiment of the present application, based on the current note
The area of the book and the service area of the LADN are used to manage the PDU session with a finer granularity.
在第二方面的第一个可选地实现中,当所述指示用于指示RA不包括LADN的信息时,SMF根据指示修改所述PDU会话,包括:SMF向终端发送第一会话修改命令消息,该第一会话修改命令消息包括PDU会话的标识和第一参数,该第一参数用于指示PDU会话不可用。通过本申请实施例可以实现,基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。In a first alternative implementation of the second aspect, when the indication is used to indicate that the RA does not include the LADN, the SMF modifies the PDU session according to the indication, including: the SMF sends the first session modification command message to the terminal The first session modification command message includes an identifier of the PDU session and a first parameter, where the first parameter is used to indicate that the PDU session is unavailable. The PDU session can be managed based on the current registration area and the service area of the LADN, and the granularity is fine.
在第二方面的第二个可选地实现中,SMF根据指示修改PDU会话,包括下述一项或多项:SMF将所述PDU会话标记为不可用;SMF通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;SMF通知UPF停止向所述SMF发送下行数据通知DDN。In a second alternative implementation of the second aspect, the SMF modifies the PDU session according to the indication, including one or more of the following: the SMF marks the PDU session as unavailable; the SMF notifies the user of the face function entity UPF to drop the Determining downlink data corresponding to the PDU session; the SMF notifies the UPF to stop sending the downlink data notification DDN to the SMF.
在第二方面的第三个可选地实现中,当所述指示用于指示RA不包括LADN的信息时,所述SMF根据指示修改所述PDU会话,包括:SMF向终端发送第二会话修改命令消息,该第二会话修改命令消息包括PDU会话的标识和第二参数,该第二参数用于指示PDU会话可用。通过本申请实施例可以实现,在终端重新进入包括LADN的服务区域的RA时,重新启用该接入LADN的PDU会话,以便进行数据传输,从而从更细的粒度对PDU会话进行管理,并且使得网络设备对于终端的寻呼更合理,节省了信令,提高了效率。In a third optional implementation of the second aspect, when the indication is used to indicate that the RA does not include the information of the LADN, the SMF modifies the PDU session according to the indication, including: the SMF sends the second session modification to the terminal The command message, the second session modification command message includes an identifier of the PDU session and a second parameter, the second parameter is used to indicate that the PDU session is available. Through the embodiment of the present application, when the terminal re-enters the RA of the service area including the LADN, the PDU session of the access LADN is re-enabled for data transmission, thereby managing the PDU session from a finer granularity, and The network device is more reasonable for the paging of the terminal, saves signaling, and improves efficiency.
可以理解的是,SMF根据指示修改所述PDU会话,SMF根据接收到的所述PDU会话的标识和所述指示修改所述PDU会话。It can be understood that the SMF modifies the PDU session according to the indication, and the SMF modifies the PDU session according to the received identifier of the PDU session and the indication.
第三方面,提供了一种服务订阅的方法。其中,SMF存在终端接入LADN的PDU会话,该方法包括:SMF向AMF订阅通知服务,该通知服务用于当预设事件发生时,AMF通知SMF,其中,LADN的可用状态发生变化。通过本申请实施例可以实现,通过本申请实施例可以实现SMF向AMF订阅终端移动到的RA包括LADN的服务区域的变化通知,当满足条件时,AMF通知SMF。对于PDU会话管理的粒度更细。In a third aspect, a method of service subscription is provided. The SMF has a PDU session in which the terminal accesses the LADN. The method includes: the SMF subscribes to the AMF subscription notification service, and the notification service is used to notify the SMF when the preset event occurs, wherein the available state of the LADN changes. The embodiment of the present application can implement the change notification of the service area of the RA including the LADN that the SMF moves to the AMF subscription terminal by using the embodiment of the present application. When the condition is met, the AMF notifies the SMF. The granularity of PDU session management is finer.
在第三方面的第一个可选地实现中,SMF向AMF订阅通知服务,包括:SMF向AMF发送LADN的数据网络名称和预设事件,以向AMF订阅通知服务。通过本申请实施例可以实现SMF向AMF订阅终端移动到的RA包括LADN的服务区域的变化通知。对于PDU会话管理的粒度更细。In a first alternative implementation of the third aspect, the SMF subscribes to the AMF notification service, including: the SMF sends the data network name and the preset event of the LADN to the AMF to subscribe to the AMF subscription service. The change notification of the service area of the RA including the LADN to which the SMF moves to the AMF subscription terminal can be implemented by using the embodiment of the present application. The granularity of PDU session management is finer.
在第三方面的第二个可选地实现中,LADN的可用状态发生变化,包括下述至少一种:第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息;第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;或者,第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入到所述第一注册区域之前的注册区域,LADN的信息可以为LADN的可用信息。In a second alternative implementation of the third aspect, the available state of the LADN is changed, including at least one of the following: information of the LADN is not included in the first registration area, and the LADN is included in the second registration area The information in the first registration area is changed from information including the LADN to information not including the LADN; the first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area; Or, the information that does not include the LADN in the first registration area is changed to information including the LADN; wherein the first registration area is a current registration area of the terminal, and the second registration area is the The terminal enters the registration area before the first registration area, and the LADN information may be the available information of the LADN.
在第三方面的第三个可选地实现中,SMF接收AMF发送的通知信息,该通知信息用于通知终端的注册区域包括或者不包括LADN的信息。SMF根据通知信息修改PDU会话。AMF通知终端移动到的RA包括LADN的服务区域的变化通知,由SMF发起LADN会话的释放或者修改,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。In a third alternative implementation of the third aspect, the SMF receives the notification information sent by the AMF, the notification information being used to inform the terminal that the registration area includes or does not include information of the LADN. The SMF modifies the PDU session based on the notification information. The AMF notifies the RA that the terminal moves to include the change notification of the service area of the LADN, and the release or modification of the LADN session is initiated by the SMF, thereby reducing the message caused by the paging terminal because the network device has downlink data arrival of the PDU session of the access LADN. Make a waste.
在第三方面的第四个可选地实现中,SMF根据所述通知信息修改所述PDU会话,包
括:当所述通知信息用于通知所述终端的注册区域不包括所述LADN的信息时,所述SMF执行下述一项或多项:通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN;或者,当所述通知信息用于通知所述终端的注册区域包括所述LADN的信息时,所述SMF执行下述一项或多项:通知所述UPF发送所述PDU会话对应的下行数据;通知所述UPF发送所述PDU会话对应的下行数据通知DDN。通过本申请实施例可以实现,由SMF根据注册区域对LADN的支持情况,来确定是否发起LADN会话的释放或者修改,管理粒度细,减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费,从而不必再寻呼终端,节省了信令。In a fourth alternative implementation of the third aspect, the SMF modifies the PDU session based on the notification information, the packet
When the notification information is used to notify the registration area of the terminal that the information of the LADN is not included, the SMF performs one or more of the following: notifying the user plane function entity UPF to discard the corresponding PDU session Downstream data; notifying that the UPF stops sending the downlink data notification DDN corresponding to the PDU session to the SMF; or, when the notification information is used to notify the registration area of the terminal that the information of the LADN is included, the SMF performs One or more of the following: notifying the UPF to send downlink data corresponding to the PDU session; and informing the UPF to send a downlink data notification DDN corresponding to the PDU session. The embodiment of the present application can be implemented by the SMF to determine whether to initiate release or modification of the LADN session according to the support status of the LADN in the registration area, and the management granularity is fine, and the network device reduces the arrival of the downlink data by the PDU session of the access LADN. The signaling caused by the paging terminal is wasted, so that it is no longer necessary to page the terminal, which saves signaling.
通过本申请实施例可以实现,AMF通知SMF关于终端移动到的RA包括LADN的服务区域的变化通知,由SMF发起LADN会话的释放或者修改,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。或者,SMF在不修改PDU会话时,即可实现将下行数据丢弃,从而不必再寻呼终端,节省了信令。Through the embodiment of the present application, the AMF notifies the SMF that the RA that the terminal moves to includes the change notification of the service area of the LADN, and the release or modification of the LADN session is initiated by the SMF, thereby reducing the network device because the PDU session of the access LADN is Downlink data arrives and signaling waste caused by paging terminals. Alternatively, the SMF can discard the downlink data when the PDU session is not modified, thereby eliminating the need to page the terminal and saving signaling.
第四方面,提供了一种服务订阅的方法。AMF存在终端接入LADN的PDU会话,该方法包括:AMF接收SMF发送的订阅通知服务请求,该通知服务用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化,其中,LADN的信息可以为LADN的可用信息。通过本申请实施例可以实现SMF向AMF订阅终端移动到的RA包括LADN的服务区域的变化通知,当满足条件时,AMF通知SMF。In a fourth aspect, a method of service subscription is provided. The AMF has a PDU session in which the terminal accesses the LADN, and the method includes: the AMF receives a subscription notification service request sent by the SMF, where the notification service is used to notify the SMF when the preset event occurs, where the preset is The event changes for the available state of the LADN, where the LADN information can be the available information for the LADN. The change notification of the service area of the RA including the LADN to which the SMF moves to the AMF subscription terminal can be implemented by the embodiment of the present application. When the condition is met, the AMF notifies the SMF.
在第四方面的第一个可选地实现中,AMF接收SMF发送的订阅通知服务请求,包括:In a first alternative implementation of the fourth aspect, the AMF receives the subscription notification service request sent by the SMF, including:
AMF接收SMF发送LADN的数据网络名称DNN和预设事件,以接受SMF订阅通知服务。The AMF receives the data network name DNN of the LADN and the preset event sent by the SMF to accept the SMF subscription notification service.
在第四方面的第二个可选地实现中,LADN的可用状态发生变化,包括下述至少一种:第一注册区域不包括LADN的信息,第二注册区域包括LADN的信息,第一注册区域从包括LADN的信息改变为不包括LADN的信息;第一注册区域包括所述LADN的信息,第二注册区域不包括所述LADN的信息;第一注册区域从不包括所述LADN的信息改变为包括所述LADN的信息;其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入所述第一注册区域之前的注册区域。In a second alternative implementation of the fourth aspect, the available state of the LADN changes, including at least one of the following: the first registration area does not include information of the LADN, the second registration area includes information of the LADN, the first registration The area is changed from information including the LADN to information not including the LADN; the first registration area includes information of the LADN, and the second registration area does not include information of the LADN; the first registration area changes information that does not include the LADN The information includes the LADN; wherein the first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
在第四方面的第三个可选地实现中,在AMF接收SMF发送的订阅通知服务请求之后,还包括:AMF向SMF发送通知信息,该通知信息用于通知所述终端的注册区域包括或者不包括所述LADN的信息。所述通知信息具体可以包括LADN DNN和指示,所述指示用于指示注册区域不包括LADN的信息In a third optional implementation of the fourth aspect, after the AMF receives the subscription notification service request sent by the SMF, the method further includes: the AMF sending the notification information to the SMF, where the notification information is used to notify the registration area of the terminal that the Information about the LADN is not included. The notification information may specifically include a LADN DNN and an indication, where the indication is used to indicate that the registration area does not include the LADN information.
通过本申请实施例可以实现,SMF在不修改PDU会话时,即可实现将下行数据丢弃,从而不必再寻呼终端,节省了信令。The embodiment of the present application can implement that when the SMF does not modify the PDU session, the downlink data can be discarded, so that the terminal does not need to be paged again, and signaling is saved.
第五方面,提供了一种会话管理方法。SMF存在接入LADN的PDU会话,该方法包括:所述SMF接收UPF发送的所述PDU会话对应的下行数据通知;所述SMF调用AMF提供的第一服务,所述第一服务用于所述SMF请求所述AMF向接入节点AN发送消息或者信息,例如N2 SM information。所述SMF接收AMF发送的指示参数,所述指示参数用于指示当前注册区域内不包括所述LADN的信息;所述SMF根据所述指示参数修改所述PDU会话。通过本申请实施例可以实现,SMF在不修改PDU会话时,即可实现将下行数
据丢弃,从而不必再寻呼终端,节省了信令。In a fifth aspect, a session management method is provided. The SMF has a PDU session for accessing the LADN, and the method includes: the SMF receiving a downlink data notification corresponding to the PDU session sent by the UPF; the SMF calling a first service provided by the AMF, where the first service is used by the SMF The SMF requests the AMF to send a message or information, such as N2 SM information, to the access node AN. The SMF receives an indication parameter sent by the AMF, where the indication parameter is used to indicate that the LADN information is not included in the current registration area; and the SMF modifies the PDU session according to the indication parameter. The embodiment of the present application can implement that the SMF can implement the downlink number when the PDU session is not modified.
It is discarded, so that it is no longer necessary to page the terminal, saving signaling.
第六方面,提供了一种会话管理方法。SMF存在接入LADN的PDU会话,该方法包括:AMF接收所述SMF调用的第一服务请求,所述第一服务请求用于所述SMF请求所述AMF向接入节点AN发送消息或者信息;当所述终端的注册区域内不包括LADN的服务区域时,所述AMF向SMF发送指示参数,所述指示参数用于指示注册区域内不包括所述LADN的信息。所述指示参数具体可以包括LADN DNN和指示,所述指示用于指示注册区域不包括LADN的信息。通过本申请实施例可以实现,SMF在不修改PDU会话时,即可实现将下行数据丢弃,从而不必再寻呼终端,节省了信令。In a sixth aspect, a session management method is provided. The SMF has a PDU session accessing the LADN, the method includes: the AMF receives the first service request invoked by the SMF, and the first service request is used by the SMF to request the AMF to send a message or information to the access node AN; When the service area of the LADN is not included in the registration area of the terminal, the AMF sends an indication parameter to the SMF, where the indication parameter is used to indicate that the LADN is not included in the registration area. The indication parameter may specifically include a LADN DNN and an indication, the indication being used to indicate that the registration area does not include information of the LADN. The embodiment of the present application can implement that when the SMF does not modify the PDU session, the downlink data can be discarded, so that the terminal does not need to be paged again, and signaling is saved.
第七方面,提供了一种终端,该终端具有实现上述第一方面以及其可选地实现中的终端行为的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。通过本申请实施例,对于接入LADN的PDU会话,当终端进入到不支持LADN的注册区域时,由终端修改或释放PDU会话,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。还可以基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。解决了在终端位于LADN的服务区域以外时,由终端发起PDU会话的释放,从而降低了由于PDU会话的存在,但是终端确不处于LADN的服务区域时,寻呼终端造成的信令浪费。还可以在网络侧修改或释放PDU会话后,通知终端,以便终端同步修改或释放该PDU会话,从而降低了由于PDU会话的存在,但是终端确不处于LADN的服务区域时,寻呼终端造成的信令浪费。终端通过对PDU会话进行标记,可以统计终端连续进入不包括LADN的服务区域的注册区域次数,从而设置规则,在连续进入不包括LADN的服务区域的注册区域小于或等于设定次数的情况下,终端修改该PDU会话,当达到或超过该设定次数的情况下,终端释放该PDU会话,对接入LADN的PDU会话的管理粒度更细。在终端重新进入包括LADN的服务区域的RA时,重新启用该接入LADN的PDU会话,以便进行数据传输,从而从更细的粒度对PDU会话进行管理,并且使得网络设备对于终端的寻呼更合理,节省了信令,提高了效率。In a seventh aspect, a terminal is provided having the functionality to implement terminal behavior in the first aspect described above and its alternative implementation. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. With the PDU session accessing the LADN, when the terminal enters the registration area that does not support the LADN, the terminal modifies or releases the PDU session, thereby reducing the network device's downlink data due to the PDU session of the access LADN. Signaling waste caused by the arrival of the paging terminal. The PDU session can also be managed based on the current registration area and the service area of the LADN, with a fine granularity. It is solved that when the terminal is located outside the service area of the LADN, the terminal initiates the release of the PDU session, thereby reducing the signaling waste caused by the paging terminal when the PDU session exists, but the terminal is not in the service area of the LADN. After the PDU session is modified or released on the network side, the terminal can be notified, so that the terminal can modify or release the PDU session synchronously, thereby reducing the existence of the PDU session, but the terminal is not in the service area of the LADN, and the paging terminal is caused by the paging terminal. Signaling is wasted. By marking the PDU session, the terminal can count the number of times the terminal continuously enters the registration area of the service area that does not include the LADN, thereby setting a rule. When the registration area of the service area that does not include the LADN is continuously less than or equal to the set number of times, The terminal modifies the PDU session. When the set number of times is reached or exceeded, the terminal releases the PDU session, and the management granularity of the PDU session accessing the LADN is finer. When the terminal re-enters the RA of the service area including the LADN, the PDU session of the access LADN is re-enabled for data transmission, thereby managing the PDU session from a finer granularity, and causing the network device to page the terminal more Reasonable, saving signaling and improving efficiency.
第八方面,提供了一种SMF实体,该SMF实体具有实现上述第二方面以及其可选地实现中的SMF实体行为的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。通过本申请实施例,基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。在终端重新进入包括LADN的服务区域的RA时,重新启用该接入LADN的PDU会话,以便进行数据传输,从而从更细的粒度对PDU会话进行管理,并且使得网络设备对于终端的寻呼更合理,节省了信令,提高了效率。In an eighth aspect, there is provided an SMF entity having the functionality to implement the SMF entity behavior in the second aspect above and its alternative implementation. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. Through the embodiment of the present application, the PDU session is managed based on the current registration area and the service area of the LADN, and the granularity is fine. When the terminal re-enters the RA of the service area including the LADN, the PDU session of the access LADN is re-enabled for data transmission, thereby managing the PDU session from a finer granularity, and causing the network device to page the terminal more Reasonable, saving signaling and improving efficiency.
第九方面,提供了一种SMF实体,该SMF实体具有实现上述第三方面以及其可选地实现中或第五方面中的SMF实体行为的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。通过本申请实施例,AMF通知SMF关于终端移动到的RA包括LADN的服务区域的变化通知,由SMF发起LADN会话的释放或者修改,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。SMF可以通过向AMF订阅终端移动到的RA包括LADN的服务区域的变化通知,当满足条件时,AMF通知SMF。或者,
SMF在不修改PDU会话时,即可实现将下行数据丢弃,从而不必再寻呼终端,节省了信令。In a ninth aspect, there is provided an SMF entity having a function of implementing the SMF entity behavior in the third aspect described above and optionally in the implementation or in the fifth aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. With the embodiment of the present application, the AMF notifies the SMF that the RA that the terminal moves to includes the change notification of the service area of the LADN, and the release or modification of the LADN session is initiated by the SMF, thereby reducing the network device's downlink data due to the PDU session of the access LADN. Signaling waste caused by the arrival of the paging terminal. The SMF may notify the change of the service area of the RA including the LADN by the AMF subscription terminal, and the AMF notifies the SMF when the condition is satisfied. Or,
When the SMF does not modify the PDU session, the downlink data can be discarded, so that the terminal does not have to be paged again, and signaling is saved.
第十方面,提供了一种AMF实体,该AMF实体具有实现上述第四方面以及其可选地实现中或第六方面中的AMF实体行为的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。通过本申请实施例,AMF通知SMF关于终端移动到的RA包括LADN的服务区域的变化通知,由SMF发起LADN会话的释放或者修改,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。SMF可以通过向AMF订阅终端移动到的RA包括LADN的服务区域的变化通知,当满足条件时,AMF通知SMF。或者,SMF在不修改PDU会话时,即可实现将下行数据丢弃,从而不必再寻呼终端,节省了信令。In a tenth aspect, there is provided an AMF entity having the functionality to implement the AMF entity behavior of the fourth aspect described above and its alternative implementation or sixth aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. With the embodiment of the present application, the AMF notifies the SMF that the RA that the terminal moves to includes the change notification of the service area of the LADN, and the release or modification of the LADN session is initiated by the SMF, thereby reducing the network device's downlink data due to the PDU session of the access LADN. Signaling waste caused by the arrival of the paging terminal. The SMF may notify the change of the service area of the RA including the LADN by the AMF subscription terminal, and the AMF notifies the SMF when the condition is satisfied. Alternatively, the SMF can discard the downlink data when the PDU session is not modified, thereby eliminating the need to page the terminal and saving signaling.
第十一方面,提供了一种计算机可读存储介质,该计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述第一方面、第二方面、第三方面、第四方面、第五方面和第六方面中任意一方面或多方面所述的方法。According to an eleventh aspect, a computer readable storage medium storing a computer program, the computer program being executed by a processor, implements the first aspect, the second aspect, the third aspect, and the The method of any one or more of the four aspects, the fifth aspect, and the sixth aspect.
第十二方面,提供了一种包含指令的计算机程序产品,当所述指令在计算机上运行时,使得计算机执行上述第一方面、第二方面、第三方面、第四方面、第五方面和第六方面中任意一方面或多方面所述的方法。According to a twelfth aspect, a computer program product comprising instructions for causing a computer to perform the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect, and The method of any one or more of the sixth aspects.
通过本申请实施例可以实现,对于LADN的会话,当终端进入到不支持LADN的注册区域时,由终端修改或释放PDU会话,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。还可以基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。解决了在终端位于LADN的服务区域以外时,由终端发起PDU会话的释放,从而降低了由于PDU会话的存在,但是终端确不处于LADN的服务区域时,寻呼终端造成的信令浪费。The embodiment of the present application can be implemented. For a LADN session, when the terminal enters the registration area that does not support the LADN, the terminal modifies or releases the PDU session, thereby reducing the network device's downlink data arrival due to the PDU session of the access LADN. The signaling caused by the paging terminal is wasted. The PDU session can also be managed based on the current registration area and the service area of the LADN, with a fine granularity. It is solved that when the terminal is located outside the service area of the LADN, the terminal initiates the release of the PDU session, thereby reducing the signaling waste caused by the paging terminal when the PDU session exists, but the terminal is not in the service area of the LADN.
图1为一种5G通信网络结构示意图;1 is a schematic structural diagram of a 5G communication network;
图2为一种LADN的服务区域的示意图。2 is a schematic diagram of a service area of a LADN.
图3为本申请实施例提供的一种会话管理的方法的信令交互示意图;FIG. 3 is a schematic diagram of signaling interaction of a method for session management according to an embodiment of the present disclosure;
图4为本申请实施例提供的另一种会话管理的方法的信令交互示意图;FIG. 4 is a schematic diagram of signaling interaction of another method for session management according to an embodiment of the present disclosure;
图5为本申请实施例提供的另一种会话管理的方法的信令交互示意图;FIG. 5 is a schematic diagram of signaling interaction of another method for session management according to an embodiment of the present disclosure;
图6为本申请实施例提供的一个示例;FIG. 6 is an example provided by an embodiment of the present application;
图7为本申请实施例提供的一种服务订阅的方法的信令交互示意图;FIG. 7 is a schematic diagram of signaling interaction of a method for service subscription according to an embodiment of the present disclosure;
图8为本申请实施例提供的另一种会话管理的方法的信令交互示意图;FIG. 8 is a schematic diagram of signaling interaction of another method for session management according to an embodiment of the present disclosure;
图9为本申请实施例提供的另一种会话管理的方法的信令交互示意图;FIG. 9 is a schematic diagram of signaling interaction of another method for session management according to an embodiment of the present disclosure;
图10为本申请实施例提供的另一个示例;FIG. 10 is another example provided by an embodiment of the present application;
图11为本申请实施例提供的一种终端的结构示意图;FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application;
图12为本申请实施例提供的一种SMF的结构示意图;FIG. 12 is a schematic structural diagram of an SMF according to an embodiment of the present disclosure;
图13为本申请实施例提供的另一种SMF的结构示意图;
FIG. 13 is a schematic structural diagram of another SMF according to an embodiment of the present disclosure;
图14为本申请实施例提供的一种AMF的结构示意图;FIG. 14 is a schematic structural diagram of an AMF according to an embodiment of the present disclosure;
图15本申请实施例提供的另一种SMF的结构示意图;15 is a schematic structural diagram of another SMF provided by an embodiment of the present application;
图16为本申请实施例提供的另一种AMF的结构示意图;FIG. 16 is a schematic structural diagram of another AMF according to an embodiment of the present disclosure;
图17为本申请实施例提供的另一种终端的结构示意图;FIG. 17 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure;
图18为本申请实施例提供的另一种SMF的结构示意图;FIG. 18 is a schematic structural diagram of another SMF according to an embodiment of the present disclosure;
图19为本申请实施例提供的另一种SMF的结构示意图;FIG. 19 is a schematic structural diagram of another SMF according to an embodiment of the present disclosure;
图20为本申请实施例提供的另一种AMF的结构示意图;FIG. 20 is a schematic structural diagram of another AMF according to an embodiment of the present disclosure;
图21为本申请实施例提供的另一种SMF的结构示意图;FIG. 21 is a schematic structural diagram of another SMF according to an embodiment of the present disclosure;
图22为本申请实施例提供的另一种AMF的结构示意图。FIG. 22 is a schematic structural diagram of another AMF according to an embodiment of the present disclosure.
下面将结合本申请实施例中的附图,对本申请实施例进行描述。The embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.
本申请实施例提供了一种会话管理的方法及设备,应用于5G通信网络。The embodiment of the present application provides a method and a device for session management, which are applied to a 5G communication network.
在本申请实施例中,终端(terminal)也可以称为用户设备(user equipment),可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网络(Radio Access Network,RAN)与一个或多个核心网进行通信,无线终端可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(session initiated protocol,SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)等设备。无线终端也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、用户设备(user device)、或终端设备(terminal equipment),本申请实施例中并不限定。按照业务类型划分,本发明实施例涉及的终端,可以是上文中对速率和移动性有较高需求的终端设备,例如手机、多媒体设备等,也可以是物联网的终端,还可以是车联网的终端。In the embodiment of the present application, a terminal may also be referred to as a user equipment, and may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or is connected to a wireless device. Other processing devices for the modem. The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal device. The computer, for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network. For example, personal communication service (PCS) telephone, cordless telephone, session initiated protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA) and other equipment. A wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a terminal device, in the embodiment of the present application Not limited. According to the service type, the terminal involved in the embodiment of the present invention may be a terminal device with high requirements for speed and mobility, such as a mobile phone, a multimedia device, or the like, or a terminal of the Internet of Things, or a car network. Terminal.
图1为本申请实施例提供的一种5G通信网络结构示意图。FIG. 1 is a schematic structural diagram of a 5G communication network according to an embodiment of the present application.
结合图1所示,认证服务功能实体(authentication server function,AUSF)、AMF、SMF、统一数据管理实体(unified data management,UDM)、应用程序功能实体(application function,AF)、策略控制功能实体(policy control function,PCF)和UPF可以为5G通信网络的核心网中的一个或多个服务器。终端通过接入通信网络可以实现网络互联。例如,可以通过接入通信网络建立PDU会话与UPF进行数据传输,该PDU会话可以由SMF进行管理。As shown in FIG. 1, an authentication service function (AUSF), an AMF, an SMF, a unified data management (UDM), an application function entity (AF), and a policy control function entity ( The policy control function (PCF) and the UPF may be one or more servers in the core network of the 5G communication network. The terminal can realize network interconnection by accessing the communication network. For example, a PDU session can be established through the access communication network to perform data transmission with the UPF, and the PDU session can be managed by the SMF.
下面对5G通信网络中的各个模块的功能进行简单介绍。The function of each module in the 5G communication network is briefly introduced below.
AUSF主要用于身份验证。AUSF is primarily used for authentication.
AMF具有终端的移动管理、注册管理、连接管理、合法监听、支持传输终端和SMF之间的会话管理(session management,SM)信息、接入认证和接入授权等功能。该AMF
可以确定终端的TA、RA和LADN等信息。The AMF has terminal mobility management, registration management, connection management, lawful interception, support for session management (SM) information between the transmission terminal and the SMF, access authentication and access authorization. The AMF
Information such as TA, RA, and LADN of the terminal can be determined.
SMF具有会话管理、漫游等功能。其中,会话管理功能,例如,会话建立、修改和释放,包括UPF和接入网(access network,AN)节点(node)的隧道维护。漫游功能可以包括计费数据收集、支持与外部(external)数据网络(data network,DN)进行认证/授权的信令传输。例如,该SMF可以用于管理接入LADN的PDU会话,包括修改或释放接入LADN的PDU会话,接收接入LADN的PDU会话对应的DDN等等。SMF has functions such as session management and roaming. Among them, session management functions, for example, session establishment, modification, and release, include tunnel maintenance of UPF and access network (AN) nodes. The roaming function may include charging data collection, and signaling transmission supporting authentication/authorization with an external data network (DN). For example, the SMF can be used to manage a PDU session accessing the LADN, including modifying or releasing a PDU session accessing the LADN, receiving a DDN corresponding to the PDU session accessing the LADN, and the like.
UPF具有数据包路由和合法监听等功能。该UPF可以对接入LADN的PDU会话对应的数据包路由和合法监听。UPF has functions such as packet routing and lawful interception. The UPF can route and legally listen to packets corresponding to the PDU session accessing the LADN.
UDM具有认证证书的处理,用户识别处理,访问授权,注册和移动性管理,订阅管理以及短信管理等功能。UDM has the functions of authentication certificate processing, user identification processing, access authorization, registration and mobility management, subscription management, and SMS management.
AF可以与3GPP核心网络进行交互。The AF can interact with the 3GPP core network.
PCF能够支持政策框架以及策略规则。The PCF is able to support policy frameworks as well as policy rules.
其中,各个实体间的接口具体可参见3GPP标准。应该知道的是,图1所示的5G通信网络结构仅为示例,本发明实施例中使用的5G通信网络结构可以包括更多或更少的网络设备。The interface between the entities can be specifically referred to the 3GPP standard. It should be noted that the 5G communication network structure shown in FIG. 1 is merely an example, and the 5G communication network structure used in the embodiment of the present invention may include more or less network devices.
本申请的申请人通过分析发现,在5G网络中的LADN与RA存在一定的关系,RA中的跟踪区(tracking area,TA)可以全部或者部分支持LADN,或者,RA中的TA可以全部不支持LADN。当RA中的TA全部或者部分支持LADN时,即LADN Service Area与Registration Area有交集时,则认为该RA中包括LADN的服务区域。当,RA中的TA全部不支持LADN时,即LADN Servcie Area与RA无交集时,则认为该RA中不包括LADN的服务区域。The applicant of the present application finds that the LADN in the 5G network has a certain relationship with the RA. The tracking area (TA) in the RA can support the LADN in whole or in part, or the TA in the RA can all not support. LADN. When the TA in the RA supports all or part of the LADN, that is, when the LADN Service Area and the Registration Area have an intersection, the RA is considered to include the service area of the LADN. When all the TAs in the RA do not support the LADN, that is, when the LADN Servcie Area has no intersection with the RA, the service area of the LADN is not included in the RA.
可以理解的是,TA支持LADN是指当终端处在TA的覆盖范围内时,可以通过TA下的基站建立接入到LADN的PDU会话并且在该LADN的PDU会话上进行数据传输。TA不支持LADN是指当终端处于TA的覆盖范围内时,不能建立接入到LADN的PDU会话,对于已经建立的LADN的PDU会话,也不能激活对应的用户面连接进行数据传输。It can be understood that the TA supporting the LADN means that when the terminal is within the coverage of the TA, the PDU session accessing the LADN can be established through the base station under the TA and data transmission is performed on the PDU session of the LADN. The TA does not support LADN. When the terminal is in the coverage of the TA, the PDU session to the LADN cannot be established. For the PDU session of the established LADN, the corresponding user plane connection cannot be activated for data transmission.
例如,如图2所示,图2为一种LADN的服务区域的示意图。TA1-TA16共构成四个RA(RA1-RA4),其中,TA1-TA5支持LADN。此时,RA1中的TA全部支持LADN,则认为该RA1中包括LADN的服务区域;RA2中的TA只有TA5支持LADN,则认为该RA1中包括LADN的服务区域;RA3和RA4中的TA全部不支持LADN,则认为该RA3和RA4中不包括LADN的服务区域。For example, as shown in FIG. 2, FIG. 2 is a schematic diagram of a service area of a LADN. TA1-TA16 constitutes four RAs (RA1-RA4), of which TA1-TA5 supports LADN. At this time, all the TAs in RA1 support LADN, and it is considered that the RA1 includes the service area of LADN; if the TA in RA2 only supports LADN by TA5, it is considered that the service area of LADN is included in RA1; all TAs in RA3 and RA4 are not If LADN is supported, it is considered that the service areas of LADN are not included in RA3 and RA4.
下面结合附图,对本申请实施例进行进一步介绍。The embodiments of the present application are further described below with reference to the accompanying drawings.
图3为本申请实施例提供的一种会话管理的方法的信令交互示意图。其中,终端存在接入LADN的PDU会话。FIG. 3 is a schematic diagram of signaling interaction of a method for session management according to an embodiment of the present disclosure. The terminal has a PDU session accessing the LADN.
其中,终端存在接入LADN的PDU会话,可以指终端保存有接入LADN的PDU会话的上下文,其中PDU会话的上下文可以包括下述的一项或者多项:PDU会话的标识;PDU会话的SSC模式;PDU会话的类型(例如IP类型),以太(ethernet)类型,非结构化(unstructured)类型等;PDU会话对应的DNN;PDU会话对应的网络切片信息,例如S-NSSAI,网络切片标识(NSI)等;PDU会话的QFI,QoS流对应的QoS参数(例如5QI),GFBR,MFBR,Session-AMBR,PDU会话对应的无线承载信息,例如DRB,也可以指
UE建立有接入LADN的PDU会话,终端可以通过该PDU会话传输上下行数据。具体地,接入LAND的PDU会话是指PDU会话对应的DNN属性为LADN DNN。The PDU session in which the terminal accesses the LADN may be used by the terminal to save the context of the PDU session in which the LADN is accessed. The context of the PDU session may include one or more of the following: an identifier of the PDU session; an SSC of the PDU session. Mode; type of PDU session (eg IP type), ethernet type, unstructured type, etc.; DNN corresponding to PDU session; network slice information corresponding to PDU session, such as S-NSSAI, network slice identifier ( NSI), etc.; QFI of the PDU session, QoS parameters corresponding to the QoS flow (eg 5QI), GFBR, MFBR, Session-AMBR, radio bearer information corresponding to the PDU session, such as DRB, may also refer to
The UE establishes a PDU session with access to the LADN, and the terminal can transmit uplink and downlink data through the PDU session. Specifically, the PDU session accessing the LAND means that the DNN attribute corresponding to the PDU session is the LADN DNN.
如图3所示,该方法具体包括:As shown in FIG. 3, the method specifically includes:
S310,终端接收AMF发送的第一消息。终端注册的AMF会将终端所在注册区域内的LADN的信息通过第一消息发送给终端。LADN信息包括LADN DNN和LADN Service Area。当然,发送给终端的LADN信息是终端签约的LADN对应的LADN信息的集合。如果终端签约了多个LADN的话,发送给终端的是多个LADN对应的LADN信息。其中,当终端所在的注册区域RA支持LADN信息时,第一消息可以携带LADN的信息,例如,LADN的信息可以为LADN的可用信息(LADN availability info)。例如,第一消息可以为注册接受消息(Registration accept),该注册接受消息包括LADN的信息;或者,第一消息可以为UE配置更新命令消息(UE configuration update command),该终端配置更新命令消息包括LADN的信息等等。其中,终端执行注册过程,AMF会向终端发送注册接受消息。S310. The terminal receives the first message sent by the AMF. The AMF registered by the terminal sends the LADN information in the registration area where the terminal is located to the terminal through the first message. The LADN information includes the LADN DNN and the LADN Service Area. Of course, the LADN information sent to the terminal is a set of LADN information corresponding to the LADN of the terminal subscription. If the terminal subscribes to multiple LADNs, the LADN information corresponding to multiple LADNs is sent to the terminal. The first message may carry the LADN information when the registration area RA where the terminal is located supports the LADN information. For example, the information of the LADN may be the LADN available information (LADN availability info). For example, the first message may be a registration accept message, the registration accept message includes information of the LADN; or the first message may be a UE configuration update command message, the terminal configuration update command message includes LADN information and more. The terminal performs the registration process, and the AMF sends a registration accept message to the terminal.
当终端所在的注册区域不支持LADN信息时,第一消息可以不携带LADN的信息。When the registration area where the terminal is located does not support the LADN information, the first message may not carry the LADN information.
在一个LADN的信息的例子中,LADN的信息包括LADN数据网络名称(LADN DNN)和LADN服务区域(LADN service area)。其中,LADN服务区域可以指该LADN的TA集合。In the example of a LADN message, the LADN information includes the LADN data network name (LADN DNN) and the LADN service area (LADN service area). The LADN service area may refer to the TA set of the LADN.
其中,在5G网络中可以包括多个LADN,该多个LADN对终端来说并不一定都是可用的。终端接收到的LADN的信息包括终端可以接入的LADN的LADN DNN,以及对应的LADN服务区域。Wherein, a plurality of LADNs may be included in the 5G network, and the multiple LADNs are not always available to the terminal. The LADN information received by the terminal includes the LADN DNN of the LADN that the terminal can access, and the corresponding LADN service area.
具体的,AMF保存有终端可用的LADN的服务区域,AMF可以根据终端的当前RA以及对于终端可用的LADN的服务区域,确定终端当前RA是否包括LADN的信息,也就是终端的当前RA与对于终端可用的LADN的服务区域是否有重叠。当终端的当前RA包括LADN的信息,也就是终端的当前RA与对于终端可用的LADN的服务区域有重叠时,第一消息中可以携带LADN的信息,该LADN的信息指示当前RA包括的LADN(LADN DNN)和该LADN的服务区域;当终端的当前RA不包括LADN的信息,也就是终端的当前RA与对于终端可用的LADN的服务区域没有重叠时,第一消息中可以不携带LADN的信息。Specifically, the AMF saves the service area of the LADN available to the terminal, and the AMF can determine whether the current RA of the terminal includes the LADN according to the current RA of the terminal and the service area of the LADN available to the terminal, that is, the current RA of the terminal and the terminal. Whether the service areas of the available LADNs overlap. When the current RA of the terminal includes the information of the LADN, that is, the current RA of the terminal overlaps with the service area of the LADN available to the terminal, the first message may carry the LADN information, where the LADN information indicates the LADN included in the current RA ( LADN DNN) and the service area of the LADN; when the current RA of the terminal does not include the LADN information, that is, the current RA of the terminal does not overlap with the service area of the LADN available to the terminal, the first message may not carry the LADN information. .
作为一个示例,结合图2所示,TA1-TA5属于对于终端可用的LADN的服务区域,如果终端的当前RA为RA1,由于RA1包括TA1-TA4,那么第一消息中可以携带LADN的信息。如果终端的当前RA为RA3,由于RA3与对于终端可用的LADN的服务区域没有重叠,那么第一消息中可以不携带LADN的信息。如果终端的当前RA为RA2,由于RA2包括TA5,那么第一消息中可以携带LADN的信息。As an example, as shown in FIG. 2, TA1-TA5 belong to the service area of the LADN available to the terminal. If the current RA of the terminal is RA1, since RA1 includes TA1-TA4, the information of the LADN may be carried in the first message. If the current RA of the terminal is RA3, since the RA3 does not overlap with the service area of the LADN available to the terminal, the information of the LADN may not be carried in the first message. If the current RA of the terminal is RA2, since RA2 includes TA5, the information of the LADN may be carried in the first message.
S320,终端确定第一消息中不包括LADN的信息。S320. The terminal determines that the LADN information is not included in the first message.
在终端接收到第一消息后,可以根据第一消息确定注册区域内LADN的状态发生变化,从而触发修改或释放接入LADN的PDU会话。After receiving the first message, the terminal may determine, according to the first message, that the state of the LADN in the registration area changes, thereby triggering modification or release of the PDU session accessing the LADN.
具体地,当终端收到的第一消息中不包括LADN的信息时,所述终端确定第一RA内不包括所述LADN的信息,进一步地,所述终端判断在接收所述第一消息之前所述第一RA内包括所述LADN的信息时,即终端当前保存有LADN的信息,所述终端确定所述
RA内的所述LADN的可用状态发生变化,从而触发修改或释放接入LADN的PDU会话,所述第一RA为所述终端的当前RA。Specifically, when the first message received by the terminal does not include the information of the LADN, the terminal determines that the information of the LADN is not included in the first RA, and further, the terminal determines that before receiving the first message. When the information of the LADN is included in the first RA, that is, the terminal currently stores information of the LADN, and the terminal determines the
The available state of the LADN within the RA changes, thereby triggering modification or release of a PDU session accessing the LADN, the first RA being the current RA of the terminal.
另一种场景中,当终端收到的第一消息中不包括LADN的信息时,所述终端确定第一RA内不包括所述LADN的信息,进一步地,所述终端判断第二RA内包括所述LADN的信息时,即终端当前保存有LADN的信息,所述终端确定所述RA内的所述LADN的可用状态发生变化。所述第一RA位所述终端的当前RA,所述第二RA为所述终端进入所述第一RA之前的RA。In another scenario, when the first message received by the terminal does not include the information of the LADN, the terminal determines that the information of the LADN is not included in the first RA, and further, the terminal determines that the second RA includes When the information of the LADN, that is, the terminal currently holds the information of the LADN, the terminal determines that the available state of the LADN in the RA changes. The first RA is the current RA of the terminal, and the second RA is the RA before the terminal enters the first RA.
在另一个实施例中,终端可以根据第一消息,确定是否达到预设条件,如果达到,则释放接入LADN的PDU会话。如果未达到,则修改接入LADN的PDU会话。In another embodiment, the terminal may determine whether the preset condition is reached according to the first message, and if so, release the PDU session accessing the LADN. If not, modify the PDU session accessing the LADN.
例如,预设条件可以为终端连续处于不支持LADN的RA的次数。也就是终端的当前RA连续不包括LADN的信息的次数。例如,终端第一次处于不支持LADN的RA时,可以将接入LADN的PDU会话标记为不可用。接着,终端连续第二次处于不支持LADN的RA时,终端确定接入LADN的PDU会话已经标记为不可用,则释放该接入LADN的PDU会话。其中,不可用可以包括挂起状态。For example, the preset condition may be the number of times the terminal continuously is in an RA that does not support LADN. That is, the number of times the current RA of the terminal does not include the LADN information continuously. For example, when the terminal is in the RA that does not support LADN for the first time, the PDU session accessing the LADN can be marked as unavailable. Then, when the terminal is in the RA for the second time in a row, the terminal determines that the PDU session accessing the LADN has been marked as unavailable, and then releases the PDU session of the access LADN. Among them, unavailable can include a suspended state.
对于修改接入LADN的PDU会话,结合图3所示,具体可以包括S330-S360:For modifying the PDU session accessing the LADN, as shown in FIG. 3, the S330-S360 may be specifically included:
S330,终端向SMF发送第一会话修改请求消息(PDU session Modification request)。该第一会话修改请求消息包括第一指示,该第一指示可以用于指示当前RA不包括LADN的信息(no LADN available info indication in current RA)。其中,LADN信息包括LADN DNN和LADN Service Area中的至少一种。S330. The terminal sends a first session modification request message (PDU session Modification request) to the SMF. The first session modification request message includes a first indication, and the first indication may be used to indicate that the current RA does not include LADN information (no LADN available info indication in current RA). The LADN information includes at least one of a LADN DNN and a LADN Service Area.
其中,终端还需要向SMF发送PDU会话标识,该PDU会话标识可以包括在第一会话修改请求消息中,也可以包括在终端发送给AMF的NAS消息中,由AMF将PDU会话ID发送给SMF,该PDU会话ID标识终端接入LADN的PDU会话。The terminal also needs to send a PDU session identifier to the SMF. The PDU session identifier may be included in the first session modification request message, or may be included in the NAS message sent by the terminal to the AMF, and the MF session ID is sent by the AMF to the SMF. The PDU session ID identifies the PDU session for which the terminal accesses the LADN.
S340,SMF根据第一会话修改请求消息修改接入LADN的PDU会话。S340. The SMF modifies the PDU session accessing the LADN according to the first session modification request message.
SMF根据第一会话修改请求消息修改接入LADN的PDU会话包括下述一项或多项:The SMF modifies the PDU session accessing the LADN according to the first session modification request message, including one or more of the following:
SMF指示UPF将该接入LADN的PDU会话对应的门控设置为关闭,例如,SMF可以向PDU发送门关闭命令(GATE OFF);The SMF instructs the UPF to set the gating corresponding to the PDU session accessing the LADN to be closed. For example, the SMF may send a door close command (GATE OFF) to the PDU;
SMF通知UPF停止发送与接入LADN的PDU会话相关的DDN;The SMF notifies the UPF to stop sending the DDN associated with the PDU session accessing the LADN;
SMF通知UPF丢弃与接入LADN的PDU会话相应下行数据;The SMF notifies the UPF to discard the downlink data corresponding to the PDU session accessing the LADN;
SMF将接入LADN的PDU会话标记为不可用或者挂起状态。其中,不可用或者挂起状态包括下述一项或多项:The SMF marks the PDU session accessing the LADN as unavailable or suspended. Among them, the unavailable or suspended state includes one or more of the following:
PDU会话的用户面连接不存在;The user plane connection of the PDU session does not exist;
SMF不能触发激活PDU会话的用户面连接;The SMF cannot trigger a user plane connection that activates the PDU session;
SMF不能接受终端请求的激活PDU会话的用户面连接请求。The SMF cannot accept the user plane connection request for the active PDU session requested by the terminal.
另外,SMF在接收到第一会话修改请求消息后,可以确定该第一会话修改请求消息对应的PDU会话的状态是否为可用状态,例如,该第一会话修改请求消息对应的PDU会话为不可用或者挂起状态,则代表该PDU会话在接收第一会话修改请求消息之前即为不可用,此时可以直接将该PDU会话释放,即删除PDU会话的上下文。如果该第一会话修改请求消息对应的PDU会话为可用状态,则代表该PDU会话在接收第一会话修改请求消息之前即为可用,此时,在接收第一会话修改请求消息之后,将该PDU会话标记为不可用
或者挂起状态。其中,PDU会话的可用状态包括下述一项或多项:In addition, after receiving the first session modification request message, the SMF may determine whether the status of the PDU session corresponding to the first session modification request message is in an available state, for example, the PDU session corresponding to the first session modification request message is unavailable. Or the suspended state indicates that the PDU session is unavailable before receiving the first session modification request message. In this case, the PDU session can be directly released, that is, the context of the PDU session is deleted. If the PDU session corresponding to the first session modification request message is in an available state, the PDU session is available before receiving the first session modification request message. At this time, after receiving the first session modification request message, the PDU is received. Session marked as unavailable
Or suspend state. The available status of the PDU session includes one or more of the following:
PDU会话的用户面连接存在;The user plane connection of the PDU session exists;
SMF可以触发激活PDU会话的用户面连接;The SMF can trigger a user plane connection that activates the PDU session;
SMF可以接受终端请求的激活PDU会话的用户面连接请求;The SMF can accept the user plane connection request of the activated PDU session requested by the terminal;
SMF可以向其他网元发送有关该PDU会话的消息。The SMF can send messages about the PDU session to other network elements.
S350,SMF向终端发送第一会话修改命令消息(PDU session modification command)。该第一会话修改命令消息包括PDU会话的标识和第一参数,该第一参数可以用于指示PDU会话不可用或者挂起。S350. The SMF sends a first session modification command message (PDU session modification command) to the terminal. The first session modification command message includes an identifier of the PDU session and a first parameter, and the first parameter may be used to indicate that the PDU session is unavailable or suspended.
其中,SMF在将PDU会话标记为不可用或者挂起后,还可以指示终端将该PDU会话标记为不可用或者挂起状态。The SMF may also instruct the terminal to mark the PDU session as unavailable or suspended after marking the PDU session as unavailable or suspended.
S360,终端将PDU会话标记为不可用或者挂起状态。S360, the terminal marks the PDU session as unavailable or suspended.
终端将接入LADN的PDU会话标记为不可用或者挂起状态。The terminal marks the PDU session accessing the LADN as unavailable or suspended.
在另一种实现方式中,终端还可以保存已向SMF发送第一指示的记录。其中,对于PDU会话,若终端存在已向SMF发送第一指示的记录,则可以表示该PDU会话被标记为不可用。In another implementation, the terminal may also save a record that has sent the first indication to the SMF. For the PDU session, if the terminal has a record that has sent the first indication to the SMF, it may indicate that the PDU session is marked as unavailable.
其中,S350和S360为可选的步骤。例如,终端将PDU会话标记为不可用的过程也可以由终端本地执行,此时,终端可以在接收第一会话修改命令消息之前执行,或者,SMF无需发送第一会话修改命令消息。Among them, S350 and S360 are optional steps. For example, the process of marking the PDU session as unavailable by the terminal may also be performed locally by the terminal. At this time, the terminal may perform before receiving the first session modification command message, or the SMF does not need to send the first session modification command message.
通过S360,终端还可以实现连续处于不支持LADN的RA的次数的统计。进一步地,可以设置规则,在连续进入不包括LADN的服务区域的注册区域小于或等于设定次数的情况下,终端修改该PDU会话,当达到或超过该设定次数的情况下,终端释放该PDU会话,对接入LADN的PDU会话的管理粒度更细。Through S360, the terminal can also achieve statistics on the number of consecutive consecutive RAs that do not support LADN. Further, the rule may be set, in a case where the registration area of the service area that does not include the LADN is continuously less than or equal to the set number of times, the terminal modifies the PDU session, and when the set number of times is reached or exceeded, the terminal releases the In the PDU session, the management granularity of the PDU session accessing the LADN is finer.
由此可以实现,在网络侧修改或释放PDU会话后,通知终端,以便终端同步修改或释放该PDU会话,从而降低了由于PDU会话的存在,但是终端确不处于LADN的服务区域时,寻呼终端造成的信令浪费。。Therefore, after modifying or releasing the PDU session on the network side, the terminal is notified, so that the terminal synchronizes modification or release of the PDU session, thereby reducing paging due to the existence of the PDU session, but the terminal is not in the service area of the LADN. Signaling waste caused by the terminal. .
在接入LADN的PDU会话被标记为不可用的情况下,当终端确定再次进入支持LADN的RA时,终端还可以将接入LADN的PDU会话标记为可用。图4为本申请实施例提供的另一种会话管理的方法的信令交互示意图。结合图4所示,具体可以包括S410-S460:In the case where the PDU session accessing the LADN is marked as unavailable, when the terminal determines to re-enter the RA supporting the LADN, the terminal may also mark the PDU session accessing the LADN as available. FIG. 4 is a schematic diagram of signaling interaction of another method for session management according to an embodiment of the present disclosure. As shown in FIG. 4, specifically, S410-S460 may be included:
S410,终端接收AMF发送的第二消息。S410. The terminal receives the second message sent by the AMF.
AMF还根据终端的当前RA以及对于终端可用的LADN的服务区域,确定终端的当前RA是否包括LADN的信息。当终端的当前RA包括LADN的信息时,第二消息中可以携带LADN的信息,该LADN的信息指示当前RA包括的LADN和LADN的服务区域;当终端的当前RA不包括LADN的信息时,第二消息中可以不携带LADN的信息。其中,第二消息可以为注册接受消息,或者终端配置更新命令消息。例如,LADN的信息可以为LADN的可用信息。The AMF also determines whether the current RA of the terminal includes the LADN information according to the current RA of the terminal and the service area of the LADN available to the terminal. When the current RA of the terminal includes the information of the LADN, the second message may carry the information of the LADN, where the information of the LADN indicates the service area of the LADN and the LADN included in the current RA; when the current RA of the terminal does not include the information of the LADN, the The second message may not carry the LADN information. The second message may be a registration accept message, or the terminal configures an update command message. For example, the LADN information can be the available information for the LADN.
作为一个示例,结合图2所示,TA1-TA5属于对于终端可用的LADN的服务区域,如果终端的当前RA为RA1,由于RA1包括TA1-TA4,那么第二消息中可以携带LADN的信息。如果终端的当前RA为RA3,由于RA3与对于终端可用的LADN的服务区域没有重叠,那么第二消息中可以不携带LADN的信息。如果终端的当前RA为RA2,由于
RA2包括TA5,那么第二消息中可以携带LADN的信息。As an example, as shown in FIG. 2, TA1-TA5 belong to the service area of the LADN available to the terminal. If the current RA of the terminal is RA1, since RA1 includes TA1-TA4, the information of the LADN may be carried in the second message. If the current RA of the terminal is RA3, since the RA3 does not overlap with the service area of the LADN available to the terminal, the information of the LADN may not be carried in the second message. If the current RA of the terminal is RA2, due to
RA2 includes TA5, then the second message can carry the LADN information.
S420,终端确定第二消息中包括LADN的信息。S420. The terminal determines information that includes the LADN in the second message.
终端在接收到第二消息后,可以根据第二消息携带的信息LADN的可用状态发生变化确定LADN的可用状态发生变化。从而触发修改接入LADN的PDU会话。After receiving the second message, the terminal may determine that the available state of the LADN changes according to the change of the available state of the information LADN carried in the second message. Thereby triggering a modification of the PDU session accessing the LADN.
具体地,当终端收到的第一消息中包括LADN的信息时,所述终端确定第一RA包括LADN的信息,进一步地、所述终端在接收所述第二消息之前所述第一RA内不包括所述LADN的信息时,即终端当前无LADN的信息,所述终端确定所述LADN的可用状态发生变化;或者Specifically, when the first message received by the terminal includes the LADN information, the terminal determines that the first RA includes the LADN information, and further, the terminal is in the first RA before receiving the second message. When the information of the LADN is not included, that is, the terminal does not currently have the LADN information, the terminal determines that the available state of the LADN changes; or
当所述第二息包括所述LADN的信息、且第二RA内不包括所述LADN的信息时,即终端当前无LADN的信息,所述终端确定所述LADN的可用状态发生变化;When the second information includes the information of the LADN, and the information of the LADN is not included in the second RA, that is, the terminal does not currently have the LADN information, the terminal determines that the available state of the LADN changes;
其中,所述第一RA为终端的当前注册区域,所述第二RA为所述终端进入所述第一RA之前的RA。The first RA is a current registration area of the terminal, and the second RA is an RA before the terminal enters the first RA.
S430,终端向SMF发送第二会话修改请求消息(PDU session Modification request)。该第二会话修改请求消息包括第二指示,该第二指示可以用于指示当前RA包括LADN的信息(no LADN available info indication in current RA)。S430. The terminal sends a second session modification request message (PDU session Modification request) to the SMF. The second session modification request message includes a second indication, which may be used to indicate that the current RA includes LADN information (no LADN available info indication in current RA).
其中,终端还需要向SMF发送PDU会话的标识,PDU会话的标识可以包括在第二会话修改请求消息中,也可以包括在终端发送给AMF的NAS消息中,由AMF发送给SMF,该PDU会话ID标识终端接入LADN的PDU会话。The terminal also needs to send the identifier of the PDU session to the SMF. The identifier of the PDU session may be included in the second session modification request message, or may be included in the NAS message sent by the terminal to the AMF, and sent by the AMF to the SMF, the PDU session. The ID identifies the PDU session that the terminal accesses the LADN.
S440,SMF根据第二会话修改请求消息修改接入LADN的PDU会话。S440. The SMF modifies the PDU session accessing the LADN according to the second session modification request message.
SMF根据第二会话修改请求消息修改接入LADN的PDU会话包括下述一项或多项:The SMF modifies the PDU session accessing the LADN according to the second session modification request message, including one or more of the following:
SMF指示UPF将该接入LADN的PDU会话对应的门控设置为开,例如,SMF可以向PDU发送门开启命令(GATE ON);The SMF instructs the UPF to set the gating corresponding to the PDU session of the access LADN to be on, for example, the SMF may send a door open command (GATE ON) to the PDU;
SMF通知UPF发送与接入LADN的PDU会话相关的DDN;The SMF notifies the UPF to send a DDN related to the PDU session accessing the LADN;
SMF通知UPF发送与接入LADN的PDU会话相应下行数据;The SMF notifies the UPF to send downlink data corresponding to the PDU session accessing the LADN;
SMF将接入LADN的PDU会话标记为可用。The SMF marks the PDU session accessing the LADN as available.
另外,SMF在接收到第二会话修改请求消息后,可以确定第二会话修改请求消息对应的PDU会话的状态是否为可用状态,例如,该第二会话修改请求消息对应的PDU会话为不可用,则代表该PDU会话在接收第二会话修改请求消息之前即为不可用,此时可以将该PDU会话标记为可用。如果该第二会话修改请求消息对应的PDU会话是可以状态时,则代表该PDU会话在接收第二会话修改请求消息之前即为可用,此时,可以不做修改。In addition, after receiving the second session modification request message, the SMF may determine whether the state of the PDU session corresponding to the second session modification request message is in an available state, for example, the PDU session corresponding to the second session modification request message is unavailable. Then, the PDU session is unavailable before receiving the second session modification request message, and the PDU session can be marked as available at this time. If the PDU session corresponding to the second session modification request message is in a configurable state, the PDU session is available before receiving the second session modification request message. In this case, no modification is possible.
S450,SMF向终端发送第二会话修改命令消息(PDU session modification command)。该第二会话修改命令消息包括PDU会话的标识和第二参数,该第二参数用于指示PDU会话可用。S450. The SMF sends a second session modification command message (PDU session modification command) to the terminal. The second session modification command message includes an identifier of the PDU session and a second parameter, the second parameter is used to indicate that the PDU session is available.
其中,SMF在将PDU会话标记为可用后,还可以指示终端将该PDU会话标记为可用。The SMF may also instruct the terminal to mark the PDU session as available after marking the PDU session as available.
S460,终端将PDU会话标记为可用。S460. The terminal marks the PDU session as available.
终端将接入LADN的PDU会话标记为可用。The terminal marks the PDU session accessing the LADN as available.
其中,S450和S460为可选的步骤。例如,终端标记PDU会话为可用状态的过程也可以由终端本地执行,此时,可以在接收第二会话修改命令消息之前,在确定第二消息中包括LADN的信息之后执行,或者,SMF无需发送第二会话修改命令消息。
Among them, S450 and S460 are optional steps. For example, the process of the terminal marking the PDU session as an available state may also be performed locally by the terminal. In this case, before the second session modification command message is received, after the information of the LADN is included in the second message, the SMF does not need to be sent. The second session modifies the command message.
由此可以实现,在终端重新进入包括LADN的服务区域的RA时,重新启用该接入LADN的PDU会话,以便进行数据传输,从而从更细的粒度对PDU会话进行管理,并且使得网络设备对于终端的寻呼更合理,节省了信令,提高了效率。Therefore, when the terminal re-enters the RA of the service area including the LADN, the PDU session of the access LADN is re-enabled for data transmission, thereby managing the PDU session from a finer granularity, and causing the network device to The paging of the terminal is more reasonable, saving signaling and improving efficiency.
图5为本申请实施例提供的另一种会话管理的方法的信令交互示意图。如图5所示,对于释放已经建立过的LADN相关的PDU会话,具体可以包括S510-S520:FIG. 5 is a schematic diagram of signaling interaction of another method for session management according to an embodiment of the present disclosure. As shown in FIG. 5, for releasing the LADN related PDU session that has already been established, the S510-S520 may be specifically included:
S510,终端向SMF发送会话释放消息。该会话释放消息可以包括PDU会话ID,该PDU会话ID指示终端接入LADN的PDU会话。S510. The terminal sends a session release message to the SMF. The session release message may include a PDU session ID indicating a PDU session in which the terminal accesses the LADN.
S520,SMF根据会话释放消息释放接入LADN的PDU会话。S520. The SMF releases the PDU session accessing the LADN according to the session release message.
通过本申请实施例,对于LADN的会话,当终端进入到不支持LADN的注册区域时,由终端修改或释放PDU会话,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。还可以基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。With the embodiment of the present application, for the session of the LADN, when the terminal enters the registration area that does not support the LADN, the terminal modifies or releases the PDU session, thereby reducing the network device because the downlink data arrives in the PDU session of the access LADN. The signaling waste caused by the calling terminal. The PDU session can also be managed based on the current registration area and the service area of the LADN, with a fine granularity.
图6为本申请实施例提供的一个示例。终端存在接入LADN的PDU会话,如图6所示,该方法包括:FIG. 6 is an example provided by an embodiment of the present application. The terminal has a PDU session accessing the LADN. As shown in FIG. 6, the method includes:
S601,终端执行注册过程(Mobility Registration procedure),接收AMF发送的注册接受消息。S601. The terminal performs a registration procedure (Mobility Registration procedure), and receives a registration accept message sent by the AMF.
S602,当终端收到的注册接受消息不包括LADN的信息时,终端确定LADN的可用状态发生变化,从而触发LADN的PDU会话的修改流程。例如,LADN的信息可以为LADN的可用信息。S602. When the registration accept message received by the terminal does not include the information of the LADN, the terminal determines that the available state of the LADN changes, thereby triggering a modification process of the LADN PDU session. For example, the LADN information can be the available information for the LADN.
具体地,终端确定LADN的可用状态发生变化与S320步骤中的方法相同。该流程中的注册接受消息等同于S320中的第一消息。Specifically, the terminal determines that the available state of the LADN changes as in the method in step S320. The registration accept message in the flow is equivalent to the first message in S320.
S603,终端向AMF发送PDU会话修改请求消息(PDU session Modification request)。该PDU会话修改请求消息中包括没有LADN的可用性信息的指示信息(no LADN available info indication),该没有LADN的可用性信息的指示信息用于指示当前RA不包括LADN服务区域。S603. The terminal sends a PDU session modification request message to the AMF. The PDU session modification request message includes indication information (no LADN available info indication) without the availability information of the LADN, and the indication information of the availability information without the LADN is used to indicate that the current RA does not include the LADN service area.
S604,AMF通过调用SMF服务的请求,将PDU会话修改请求消息发送给SMF。S604. The AMF sends a PDU session modification request message to the SMF by calling a request of the SMF service.
S605,SMF判断接入LADN的PDU会话是否为挂起状态。S605. The SMF determines whether the PDU session accessing the LADN is in a suspended state.
如果是,则直接执行S612,释放PDU会话;如果否,则执行S606-S611。If yes, S612 is directly executed to release the PDU session; if not, S606-S611 is performed.
S606,SMF根据PDU会话修改请求消息将接入LADN的PDU会话的状态标记为挂起状态。S606. The SMF marks the status of the PDU session accessing the LADN as a suspended state according to the PDU session modification request message.
S607,SMF向AMF发送调用SMF服务的响应,该调用SMF服务的响应包括PDU会话修改命令消息。该PDU会话修改命令消息包括会话挂起参数,该参数用于指示终端将该PDU会话标记为挂起状态。S607. The SMF sends a response to the AMF that invokes the SMF service, where the response to the SMF service includes a PDU session modification command message. The PDU session modification command message includes a session suspension parameter, and the parameter is used to instruct the terminal to mark the PDU session as a suspended state.
S608,AMF向终端发送PDU会话修改命令消息。S608. The AMF sends a PDU session modification command message to the terminal.
可以在网络侧修改或释放PDU会话后,通知终端,以便终端同步修改或释放该PDU会话,从而降低了由于PDU会话的存在,但是终端确不处于LADN的服务区域时,寻呼终端造成的信令浪费。After modifying or releasing the PDU session on the network side, the terminal may be notified, so that the terminal can modify or release the PDU session synchronously, thereby reducing the message caused by the paging terminal when the terminal is not in the service area of the LADN due to the existence of the PDU session. Make a waste.
S609,终端将接入LADN的PDU会话标记为挂起状态。S609. The terminal marks the PDU session accessing the LADN as a suspended state.
或者,在另一种实现方式中,终端可以保存已向SMF发送没有LADN的信息的指示
信息的记录。待终端再次进入到包括LADN服务区域的RA后,再次发起PDU会话修改流程,通知SMF,终端重新进入到了包括LADN服务区域的RA。Or, in another implementation, the terminal may save an indication that the information of the LADN has not been sent to the SMF.
Record of information. After the terminal re-enters the RA including the LADN service area, the PDU session modification process is initiated again to notify the SMF that the terminal re-enters the RA including the LADN service area.
终端通过对PDU会话进行标记,可以统计终端连续进入不包括LADN的服务区域的注册区域次数,从而设置规则,在连续进入不包括LADN的服务区域的注册区域小于或等于设定次数的情况下,终端修改该PDU会话,当达到或超过该设定次数的情况下,终端释放该PDU会话,对接入LADN的PDU会话的管理粒度更细。By marking the PDU session, the terminal can count the number of times the terminal continuously enters the registration area of the service area that does not include the LADN, thereby setting a rule. When the registration area of the service area that does not include the LADN is continuously less than or equal to the set number of times, The terminal modifies the PDU session. When the set number of times is reached or exceeded, the terminal releases the PDU session, and the management granularity of the PDU session accessing the LADN is finer.
S610,SMF向UPF发送会话修改请求消息。其中,该会话修改请求消息可以通过N4接口发送。S610. The SMF sends a session modification request message to the UPF. The session modification request message can be sent through the N4 interface.
该会话修改请求消息中携带门控设置为关闭的指示(GATE OFF),或者通知UPF停止发送与接入LADN的PDU会话相关的下行数据通知(Downlink Data Notification,DNN),丢弃相应下行数据。The session modification request message carries an indication that the gating is set to be off (GATE OFF), or notifies the UPF to stop sending a Downlink Data Notification (DNN) related to the PDU session accessing the LADN, and discards the corresponding downlink data.
S611,UPF向SMF发送会话修改响应。其中,UPF可以将PDU会话对应的数据流(flow)的门控设置为关闭状态,或者停止发送与接入LADN的PDU会话相关的DDN,丢弃相应数据。S611. The UPF sends a session modification response to the SMF. The UPF may set the gating of the data flow corresponding to the PDU session to the closed state, or stop sending the DDN related to the PDU session accessing the LADN, and discard the corresponding data.
在终端重新进入包括LADN的服务区域的RA时,重新启用该接入LADN的PDU会话,以便进行数据传输,从而从更细的粒度对PDU会话进行管理,并且使得网络设备对于终端的寻呼更合理,节省了信令,提高了效率。When the terminal re-enters the RA of the service area including the LADN, the PDU session of the access LADN is re-enabled for data transmission, thereby managing the PDU session from a finer granularity, and causing the network device to page the terminal more Reasonable, saving signaling and improving efficiency.
通过本申请实施例,对于LADN的会话,当终端进入到不支持LADN的注册区域时,由终端修改或释放PDU会话,从而减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。还可以基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。With the embodiment of the present application, for the session of the LADN, when the terminal enters the registration area that does not support the LADN, the terminal modifies or releases the PDU session, thereby reducing the network device because the downlink data arrives in the PDU session of the access LADN. The signaling waste caused by the calling terminal. The PDU session can also be managed based on the current registration area and the service area of the LADN, with a fine granularity.
图7为本申请实施例提供的一种服务订阅的方法的信令交互示意图。其中,终端存在接入LADN的PDU会话,如图7所示,该方法具体包括:FIG. 7 is a schematic diagram of signaling interaction of a method for service subscription according to an embodiment of the present disclosure. The terminal has a PDU session that accesses the LADN. As shown in FIG. 7, the method specifically includes:
S710,SMF向AMF订阅通知服务。例如,SMF向AMF发送订阅通知服务请求,即SMF调用AMF提供的订阅通知服务,来实现SMF向AMF订阅通知服务。该通知服务用于当预设事件发生时,AMF通知SMF,其中,预设事件为LADN的可用状态发生变化,LADN的可用状态发生变化可以为注册区内LADN的可用状态发生变化。S710. The SMF subscribes to the AMF notification service. For example, the SMF sends a subscription notification service request to the AMF, that is, the SMF invokes the subscription notification service provided by the AMF to implement the SMF subscription notification service to the AMF. The notification service is used to notify the SMF when the preset event occurs, wherein the preset event is a change in the available state of the LADN, and the change in the available state of the LADN may change the available state of the LADN in the registration area.
SMF在向AMF订阅通知服务时,可以向所述AMF发送LADN的数据网络名称(LADN DNN)和预设事件,以向AMF订阅通知服务。当然,SMF也可以发送给AMF关于预设事件的过滤器,以使AMF通过过滤器来判断预设事件发生,另外,SMF还可以向AMF发送能够识别该预设事件发生的其他参数,本发明不做具体限制。When the SMF subscribes to the AMF to notify the service, the SMF may send the LADN's data network name (LADN DNN) and a preset event to the AMF to subscribe to the AMF subscription service. Of course, the SMF can also send a filter to the AMF about the preset event, so that the AMF can determine the occurrence of the preset event through the filter. In addition, the SMF can also send other parameters to the AMF that can identify the occurrence of the preset event. No specific restrictions are imposed.
其中,预设事件为LADN的可用状态发生变化,具体可以指注册区在包括LADN信息和不包括LADN信息之间发生转换,包括下述一种或多种情况:The preset event is a change of the available state of the LADN. Specifically, the registration area may be converted between the LADN information and the LADN information, including one or more of the following:
终端由包括LADN的信息的第一RA,进入不包括LADN的信息的第二RA;The terminal enters the second RA that does not include the information of the LADN by the first RA including the information of the LADN;
终端由不包括LADN的信息的第一RA,进入包括LADN的信息的第二RA;The terminal enters the second RA including the information of the LADN by the first RA that does not include the information of the LADN;
终端未更换RA,但对于终端可用的LADN发生变换,使得终端的第一RA由包括LADN的信息变为不包括LADN的信息;The terminal does not replace the RA, but the LADN available for the terminal is changed, so that the first RA of the terminal is changed from the information including the LADN to the information not including the LADN;
终端未更换RA,但对于终端可用的LADN发生变换,使得终端的第一RA由不包括LADN的信息变为包括LADN的信息。
The terminal does not replace the RA, but the LADN available for the terminal is changed, so that the first RA of the terminal is changed from the information not including the LADN to the information including the LADN.
其中,第一RA是终端的当前RA,第二RA是终端进入到第一RA之前的RA。LADN的信息可以为LADN的可用信息。The first RA is the current RA of the terminal, and the second RA is the RA before the terminal enters the first RA. The LADN information can be the available information for the LADN.
例如,结合图2所示,TA1-TA5属于对于终端可用的LADN的服务区域,当终端的当前注册区域由RA1(或RA2)移动到RA3,或者由RA2移动到RA4时,也就是,终端由包括LADN的信息的RA移动到了不包括LADN的信息的RA,此时认为终端进入的注册区域在包括和不包括LADN的信息之间发生变化,反之亦然。For example, as shown in FIG. 2, TA1-TA5 belong to the service area of the LADN available to the terminal. When the current registration area of the terminal is moved from RA1 (or RA2) to RA3, or from RA2 to RA4, that is, the terminal is The RA including the information of the LADN is moved to the RA that does not include the information of the LADN, and the registration area that the terminal enters is considered to change between the information including and not including the LADN, and vice versa.
再例如,结合图2所示,TA1-TA5属于对于终端可用的LADN的服务区域。当网络侧将TA1-TA5取消LADN服务时,若终端的当前注册区域为RA1,终端的RA由包括LADN的信息变成了不包括LADN的信息,此时认为终端进入的注册区域在包括和不包括LADN的信息之间发生变化。当网络侧将TA10设置为支持LADN,且TA10属于对于终端可用的LADN的服务区域,若终端的当前注册区域为RA3,终端的RA由不包括LADN的信息变成了包括LADN的信息,此时认为终端进入的注册区域在包括和不包括LADN的信息之间发生变化。For another example, as shown in FIG. 2, TA1-TA5 belong to a service area for the LADN available to the terminal. When the network side cancels the LADN service by TA1-TA5, if the current registration area of the terminal is RA1, the RA of the terminal is changed from the information including the LADN to the information that does not include the LADN, and the registration area that the terminal enters is considered to be included and not. There is a change between the information including LADN. When the network side sets the TA10 to support the LADN, and the TA10 belongs to the service area of the LADN available to the terminal, if the current registration area of the terminal is RA3, the RA of the terminal becomes information including the LADN by the information not including the LADN. The registration area that the terminal enters is considered to change between information including and not including the LADN.
S720,AMF确定LADN的可用状态发生变化。At S720, the AMF determines that the available state of the LADN has changed.
AMF根据终端的RA的变化情况以及对于终端可用的LADN的服务区域的变化情况,确定终端的当前RA是否包括LADN的信息,判断终端进入的注册区域有无LADN的信息是否发生变化,或者在同一注册区域下,是否发生了包括LADN的信息和不包括LADN的信息之间的变化,也就是LADN的可用状态是否发生变化。The AMF determines whether the current RA of the terminal includes the LADN information according to the change of the RA of the terminal and the change of the service area of the LADN available to the terminal, and determines whether the information of the LADN in the registration area entered by the terminal changes or is the same. Under the registration area, whether there is a change between the information including the LADN and the information not including the LADN, that is, whether the available state of the LADN has changed.
S730,AMF向SMF发送通知信息,该通知信息用于通知SMF订阅的预设事件发生。其中,通知信息可以包括,LADN DNN和/或指示参数,LADN DNN用于标识LADN,指示参数用于指示SMF订阅的预设事件发生,具体可以为终端的RA包括或者不包括所述LADN的信息(LADN available/unavailable indication in current RA),或者用于指示终端的RA在包括LADN的可用该信息和不包括LADN的信息之间发生转换,或者其他用于指示预设事件发生变化的参数,本发明不做具体限制。S730. The AMF sends a notification message to the SMF, where the notification information is used to notify the SMF that the preset event occurs. The notification information may include: a LADN DNN and/or an indication parameter, the LADN DNN is used to identify the LADN, and the indication parameter is used to indicate that a preset event of the SMF subscription occurs, and specifically, the RA of the terminal may include or not include the information of the LADN. (LADN available/unavailable indication in current RA), or a parameter indicating that the RA of the terminal converts between the information including the LADN and the information not including the LADN, or other parameters for indicating the change of the preset event, The invention is not specifically limited.
具体地,AMF向SMF发送终端的注册区域包括LAND信息,其意义是终端的注册区域从不包括LADN的信息转换到包括LADN的可用该信息。如果发送给SMF,终端的注册区域不包括LADN的可用该信息,其意义是终端的注册区域从包括LADN的信息转换到不包括LADN的信息。当然,AMF也可以向SMF发送其他参数来指示终端的注册区域在包括LADN信息和不包括LADN信息之间发生转换。Specifically, the AMF sends the registration area of the terminal to the SMF including LAND information, which means that the registration area of the terminal is converted from information not including the LADN to the information including the LADN. If sent to the SMF, the registration area of the terminal does not include the information available to the LADN, which means that the registration area of the terminal is converted from information including the LADN to information not including the LADN. Of course, the AMF may also send other parameters to the SMF to indicate that the registration area of the terminal transitions between including the LADN information and not including the LADN information.
例如,当AMF确定终端由包括LADN的信息的第二注册区域进入到不包括LADN的信息的第一注册区域,在终端注册到第一注册区域时,AMF向SMF发送通知消息,该通知消息不包括LADN的信息。For example, when the AMF determines that the terminal enters the first registration area of the information including the LADN from the second registration area including the LADN, when the terminal registers with the first registration area, the AMF sends a notification message to the SMF, the notification message is not Includes information about LADN.
或者,当AMF确定终端由不包括LADN的信息的第二注册区域进入到包括LADN的信息的第一注册区域,在终端注册到第一注册区域时,AMF向SMF发送通知消息,该通知消息包括LADN的信息。Alternatively, when the AMF determines that the terminal enters the first registration area including the information of the LADN by the second registration area that does not include the information of the LADN, when the terminal registers with the first registration area, the AMF sends a notification message to the SMF, the notification message including LADN information.
或者,当AMF确定终端的注册区域为第一注册区域,该第一注册区域由包括LADN的信息,重配置为不包括LADN的信息时,AMF向SMF发送通知消息,该通知消息不包括LADN的信息。Or, when the AMF determines that the registration area of the terminal is the first registration area, and the first registration area is reconfigured to include the information of the LADN by the information including the LADN, the AMF sends a notification message to the SMF, where the notification message does not include the LADN. information.
或者,当AMF确定终端的注册区域为第一注册区域,该第一注册区域由不包括LADN
的信息,重配置为包括LADN的信息时,AMF向SMF发送通知消息,该通知消息包括LADN的信息。Or, when the AMF determines that the registration area of the terminal is the first registration area, the first registration area is not including the LADN.
When the information is reconfigured to include the LADN information, the AMF sends a notification message to the SMF, the notification message including the LADN information.
再例如,结合图2所示,当终端的当前注册区域由RA1(或RA2)移动到RA3,或者由RA2移动到RA4时,也就是,终端由包括LADN的信息的RA移动到了不包括LADN的信息的RA,此时,AMF向SMF发送所述终端当前RA不包括LADN的信息的通知信息。当终端的当前注册区域由RA3移动到RA1(或RA2),或者由RA4移动到RA2时,也就是,终端由不包括LADN的信息的RA移动到了包括LADN的信息的RA,此时,AMF向SMF发送终端当前RA包括LADN的信息的通知信息。For another example, as shown in FIG. 2, when the current registration area of the terminal is moved from RA1 (or RA2) to RA3, or from RA2 to RA4, that is, the terminal is moved from the RA including the information of the LADN to the LA that does not include the LADN. RA of the information, at this time, the AMF sends the notification information of the information that the terminal RA does not include the LADN to the SMF. When the current registration area of the terminal is moved from RA3 to RA1 (or RA2), or from RA4 to RA2, that is, the terminal moves from the RA that does not include the information of the LADN to the RA including the information of the LADN, at this time, the AMF The SMF sends the notification information of the current RA of the terminal including the LADN information.
S740,SMF根据通知信息修改或释放PDU会话。S740. The SMF modifies or releases the PDU session according to the notification information.
SMF在接收到通知信息,确定LADN的可用状态发生变化后,可以修改或者释放接入LADN的PDU会话。After receiving the notification information and determining that the available state of the LADN has changed, the SMF may modify or release the PDU session accessing the LADN.
其中,若接入LADN的PDU会话为不可用,则在SMF接收到终端当前RA包括LADN的信息的通知信息后,修改接入LADN的PDU会话为可用状态。进一步地,SMF还可以执行下述一项或多项步骤:通知UPF将接入LADN的PDU会话对应的门控设置为开;通知UPF发送与接入LADN的PDU会话相关的DDN;通知UPF发送与接入LADN的PDU会话相关的下行数据。If the PDU session accessing the LADN is unavailable, after the SMF receives the notification information that the current RA includes the LADN information, the PDU session that accesses the LADN is modified to be in an available state. Further, the SMF may also perform one or more of the following steps: notifying the UPF to set the gating corresponding to the PDU session accessing the LADN to ON; notifying the UPF to send the DDN related to the PDU session accessing the LADN; notifying the UPF to send Downlink data related to the PDU session accessing the LADN.
若接入LADN的PDU会话为可用状态,则在SMF接收到终端当前RA不包括LADN的信息的通知信息后,修改接入LADN的PDU会话为不可用,进一步地,SMF还可以执行下述一项或多项步骤:通知UPF将接入LADN的PDU会话对应的门控设置为关;通知UPF停止发送与接入LADN的PDU会话相关的DDN;通知UPF丢弃与接入LADN的PDU会话相关的下行数据。If the PDU session accessing the LADN is in an available state, after the SMF receives the notification information that the current RA does not include the LADN information, the PDU session of the access LADN is modified to be unavailable. Further, the SMF may perform the following one. Item or multiple steps: notifying the UPF that the gating corresponding to the PDU session accessing the LADN is set to OFF; notifying the UPF to stop transmitting the DDN associated with the PDU session accessing the LADN; notifying the UPF to discard the PDU session associated with accessing the LADN Downstream data.
在另一种可能的实现中,在SMF接收到终端当前RA不包括LADN的信息的通知信息后,还可以释放接入LADN的PDU会话。例如,若接入LADN的PDU会话为可用状态,在SMF接收到终端当前RA不包括LADN的信息的通知信息后,释放接入LADN的PDU会话为可用状态。In another possible implementation, after the SMF receives the notification information that the current RA does not include the LADN information, the SMF may also release the PDU session accessing the LADN. For example, if the PDU session accessing the LADN is in an available state, after the SMF receives the notification information that the current RA does not include the LADN information, the PDU session that accesses the LADN is released.
在又一种可能的实现中,在下行数据到来时,SMF获取终端的注册信息时,AMF向SMF发送所述终端当前RA不包括所述LADN的信息的通知信息后,SMF还可以执行下述一项或多项步骤:通知UPF丢弃该下行数据;通知UPF将接入LADN的PDU会话对应的门控设置为关;通知UPF停止发送与接入LADN的PDU会话相关的DDN;将该接入LADN的PDU会话修改为不可用。SMF在不修改PDU会话时,即可实现将下行数据丢弃,从而不必再寻呼终端,节省了信令。In another possible implementation, when the SMF acquires the registration information of the terminal when the downlink data arrives, the AMF sends the notification information of the information that the current RA does not include the LADN to the SMF, and the SMF may also perform the following. One or more steps: notifying the UPF to discard the downlink data; notifying the UPF to set the gating corresponding to the PDU session accessing the LADN to off; notifying the UPF to stop transmitting the DDN associated with the PDU session accessing the LADN; The LADN PDU session is modified to be unavailable. When the SMF does not modify the PDU session, the downlink data can be discarded, so that the terminal does not have to be paged again, and signaling is saved.
通过本申请实施例可以实现,AMF通知SMF,终端移动到的RA在包括LADN的服务区域和不包括LADN的服务区域之间发生转换时,由SMF发起LADN会话的释放或者修改,从而减少了当终端处于不支持LADN的RA时,网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。It can be implemented by the embodiment of the present application that the AMF notifies the SMF that when the RA moved by the terminal transitions between the service area including the LADN and the service area not including the LADN, the release or modification of the LADN session is initiated by the SMF, thereby reducing When the terminal is in an RA that does not support LADN, the network device wastes signaling caused by paging the terminal because the downlink data arrives in the PDU session of the access LADN.
图8为本申请实施例提供的另一种会话管理的方法的信令交互示意图。其中,终端存在接入LADN的PDU会话,如图8所示,该方法具体包括:FIG. 8 is a schematic diagram of signaling interaction of another method for session management according to an embodiment of the present disclosure. The terminal has a PDU session that accesses the LADN. As shown in FIG. 8, the method specifically includes:
S810,终端在第一RA内接收AMF发送的第一消息。其中,该第一消息包括或者不包括LADN的信息(例如,结合图8所示的第一消息可以为结合图3所示的第一消息或者
结合图4所示的第二消息),第一RA为终端的当前注册区域。S810. The terminal receives the first message sent by the AMF in the first RA. The first message includes or does not include information of the LADN (for example, the first message shown in conjunction with FIG. 8 may be the first message shown in conjunction with FIG. 3 or
In conjunction with the second message shown in FIG. 4, the first RA is the current registration area of the terminal.
其中,第一消息可以是注册接受消息或者终端配置更新命令消息。The first message may be a registration accept message or a terminal configuration update command message.
例如,当AMF确定终端由第二注册区域进入第一注册区域时,若第一注册区域包括LADN的信息,则AMF向终端发送注册接受消息,该注册接受消息包括LADN的信息,若第一注册区域不包括LADN的信息,则AMF向终端发送注册接受消息,该注册接受消息不包括LADN的信息。For example, when the AMF determines that the terminal enters the first registration area by the second registration area, if the first registration area includes the information of the LADN, the AMF sends a registration accept message to the terminal, where the registration acceptance message includes the LADN information, if the first registration If the area does not include the LADN information, the AMF sends a registration accept message to the terminal, and the registration accept message does not include the LADN information.
可以理解的是,注册接受消息中不包括LADN的信息,具体可以为无LADN信息,或者LADN的信息为空,或者其他指示信息指示无LADN的信息It can be understood that the LADN information is not included in the registration accept message, and may be no LADN information, or the LADN information is empty, or other indication information indicates that there is no LADN information.
或者,当AMF确定终端由包括LADN的信息的第二注册区域进入到不包括LADN的信息的第一注册区域,在终端注册到第一注册区域时,AMF向终端发送注册接受消息,该注册接收消息不包括LADN的信息。Alternatively, when the AMF determines that the terminal enters the first registration area that does not include the information of the LADN by the second registration area including the information of the LADN, when the terminal registers with the first registration area, the AMF sends a registration accept message to the terminal, and the registration is received. The message does not include information about LADN.
或者,当AMF确定终端由不包括LADN的信息的第二注册区域进入到包括LADN的信息的第一注册区域,在终端注册到第一注册区域时,AMF向终端发送注册接受消息,该注册接收消息包括LADN的信息。Alternatively, when the AMF determines that the terminal enters the first registration area including the information of the LADN by the second registration area that does not include the information of the LADN, when the terminal registers with the first registration area, the AMF sends a registration accept message to the terminal, and the registration is received. The message includes information about LADN.
或者,当AMF确定终端的注册区域为第一注册区域,该第一注册区域由包括LADN的信息,重配置为不包括LADN的信息时,AMF向终端发送终端配置更新命令消息,该终端配置更新命令消息不包括LADN的信息。Alternatively, when the AMF determines that the registration area of the terminal is the first registration area, and the first registration area is reconfigured to include the information of the LADN by the information including the LADN, the AMF sends a terminal configuration update command message to the terminal, and the terminal configuration update is performed. The command message does not include information about the LADN.
或者,当AMF确定终端的注册区域为第一注册区域,该第一注册区域由不包括LADN的信息,重配置为包括LADN的信息时,AMF向终端发送终端配置更新命令消息,该终端配置更新命令消息包括LADN的信息。Alternatively, when the AMF determines that the registration area of the terminal is the first registration area, and the first registration area is reconfigured to include the LADN information by the information not including the LADN, the AMF sends a terminal configuration update command message to the terminal, and the terminal configuration update is performed. The command message includes information about the LADN.
在本申请实施例中,第一注册区域为所述终端的当前注册区域,第二注册区域为终端进入当前注册区域前的注册区域。In the embodiment of the present application, the first registration area is the current registration area of the terminal, and the second registration area is the registration area before the terminal enters the current registration area.
其中,LADN的信息可以参照结合图3所示的实施例中S310中的相关描述,此处不再赘述。The information about the LADN can be referred to the related description in S310 in the embodiment shown in FIG. 3, and details are not described herein again.
S820,终端根据第一消息确定LADN的可用状态发生变化。S820. The terminal determines, according to the first message, that an available state of the LADN changes.
LADN的可用状态发生变化包括:注册区域由包括LADN的信息变为不包括LADN的信息,或者,注册区域由不包括LADN的信息变为包括LADN的信息。The change in the available state of the LADN includes that the registration area is changed from information including the LADN to information not including the LADN, or the registration area is changed from information not including the LADN to information including the LADN.
例如,当第一消息不包括LADN的信息,说明当前注册区域不包括LADN的信息并且第二注册区域包括LADN的信息时,终端确定LADN的可用状态发生变化;或者,当第一消息包括LADN的信息,说明当前注册区域包括LADN的信息,并且第二注册区域不包括LADN的信息时终端确定LADN的可用状态发生变化。For example, when the first message does not include the information of the LADN, indicating that the current registration area does not include the information of the LADN and the second registration area includes the information of the LADN, the terminal determines that the available state of the LADN changes; or, when the first message includes the LADN The information indicates that the current registration area includes the LADN information, and the terminal determines that the available state of the LADN changes when the second registration area does not include the LADN information.
其中,第二注册区域包括或者不包括LADN的信息可以根据终端在第二注册区域时接收到的第二消息确定。该第二消息包括或者不包括LADN的信息。该第二消息包括LADN的信息,表示第二注册区域包括LADN的信息;该第二消息不包括LADN的信息,表示第二注册区域不包括LADN的信息。其中第二消息可以是注册接受消息或者终端配置更新命令消息。可以记录终端在第二注册区域时接收到的第二消息,或者可以记录第二注册区域包括或不包括LADN的信息,当终端接收到第一消息时,可以直接根据记录确定第二注册区域包括或者不包括LADN的信息。The information that the second registration area includes or does not include the LADN may be determined according to the second message that is received by the terminal when the second registration area is received. The second message includes or does not include information of the LADN. The second message includes information of the LADN, indicating that the second registration area includes information of the LADN; the second message does not include information of the LADN, indicating that the second registration area does not include information of the LADN. The second message may be a registration accept message or a terminal configuration update command message. The second message received by the terminal in the second registration area may be recorded, or the second registration area may be recorded with or without LADN information. When the terminal receives the first message, the second registration area may be directly determined according to the record. Or do not include information about LADN.
另外,第二注册区域包括或者不包括LADN的信息,还可以根据接收到第一消息时,
终端接入LADN的PDU会话的状态确定。例如,当接收到第一消息时,终端接入LADN的PDU会话的状态为不可用,表示第二注册区域不包括LADN的信息;当接收到第一消息时,终端接入LADN的PDU会话的状态为可用状态,表示第二注册区域包括LADN的信息。In addition, the second registration area includes or does not include information of the LADN, and may also be based on when the first message is received.
The status of the PDU session in which the terminal accesses the LADN is determined. For example, when the first message is received, the status of the PDU session in which the terminal accesses the LADN is unavailable, indicating that the second registration area does not include the LADN information; when the first message is received, the terminal accesses the LADN PDU session. The status is available, indicating that the second registration area includes information about the LADN.
再例如,当第一消息不包括LADN的信息,并且终端在第一注册区域在收到第一消息之前包括LADN的信息时,终端确定LADN的可用状态发生变化;或者,当第一消息包括所述LADN的信息,并且终端在收到第一消息之前不包括LADN的信息时,终端确定注册区域内LAND可用状态发生变化。For another example, when the first message does not include the information of the LADN, and the terminal includes the information of the LADN before the first message is received in the first registration area, the terminal determines that the available state of the LADN changes; or, when the first message includes the When the LADN information is described, and the terminal does not include the LADN information before receiving the first message, the terminal determines that the LAND available state changes in the registration area.
其中,第一注册区域在收到第一消息之前包括或者不包括LADN的信息,可以根据在第一注册区域接收到的第三消息确定,或者根据接入LADN的PDU会话的状态确定。第三消息包括或者不包括LADN的信息。该第三消息包括LADN的信息,表示第一注册区域包括LADN的信息,该第三消息不包括LADN的信息,表示第一注册区域不包括LADN的信息。其中第三消息可以是注册接受消息或者终端配置更新命令消息。可以记录终端在第二注册区域时接收到的第二消息,或者记录第一注册区域包括或不包括LADN的信息,当终端接收到第一消息时,可以直接根据记录确定第一注册区域在收到第一消息之前包括或者不包括LADN的信息。The information that the first registration area includes or does not include the LADN before receiving the first message may be determined according to the third message received in the first registration area, or determined according to the state of the PDU session accessing the LADN. The third message includes or does not include information about the LADN. The third message includes information of the LADN, indicating that the first registration area includes information of the LADN, and the third message does not include information of the LADN, indicating that the first registration area does not include information of the LADN. The third message may be a registration accept message or a terminal configuration update command message. The second message received by the terminal in the second registration area may be recorded, or the information of the first registration area including or not including the LADN may be recorded. When the terminal receives the first message, the first registration area may be directly determined according to the record. Information including or not including LADN before the first message.
另外,在收到第一消息之前第一注册区域包括或者不包括LADN的信息,还可以根据接收到第一消息时,终端接入LADN的PDU会话的状态确定。例如,当接收到第一消息时,终端接入LADN的PDU会话的状态为不可用,表示在收到第一消息之前第一注册区域不包括LADN的信息;当接收到第一消息时,终端接入LADN的PDU会话的状态为可用,表示在收到第一消息之前第一注册区域包括LADN的信息。In addition, the first registration area includes or does not include the information of the LADN before receiving the first message, and may also be determined according to the state of the PDU session in which the terminal accesses the LADN when the first message is received. For example, when the first message is received, the status of the PDU session in which the terminal accesses the LADN is unavailable, indicating that the first registration area does not include the LADN information before receiving the first message; when receiving the first message, the terminal The status of the PDU session accessing the LADN is available, indicating that the first registration area includes the LADN information before receiving the first message.
其中,终端接入LADN的PDU会话的状态为不可用可参见结合图3图4和图6所示的实施例中的相关描述。The state of the PDU session in which the terminal accesses the LADN is unavailable. Referring to the related description in the embodiment shown in FIG. 3, FIG. 4 and FIG.
SMF可以基于当前注册区域和LADN的服务区域,来对PDU会话进行管理,粒度较细。解决了在终端位于LADN的服务区域以外时,由终端发起PDU会话的释放,从而降低了由于PDU会话的存在,但是终端确不处于LADN的服务区域时,寻呼终端造成的信令浪费。The SMF can manage the PDU session based on the current registration area and the service area of the LADN, and the granularity is fine. It is solved that when the terminal is located outside the service area of the LADN, the terminal initiates the release of the PDU session, thereby reducing the signaling waste caused by the paging terminal when the PDU session exists, but the terminal is not in the service area of the LADN.
S830,修改或者释放所述PDU会话。S830. Modify or release the PDU session.
当第一消息不包括LADN的信息,并且第二注册区域包括LADN的信息时,或者,当第一消息不包括LADN的信息,并且第一注册区域在收到第一消息之前包括LADN的信息时,修改或者释放PDU会话包括下述一项或多项(可参见结合图3所示的实施例中S330-S360,和结合图5所示的实施例中S510-S520,以及结合图6所示的实施例中S603-S611的相关描述):When the first message does not include the information of the LADN, and the second registration area includes the information of the LADN, or when the first message does not include the information of the LADN, and the first registration area includes the information of the LADN before receiving the first message Revising or releasing the PDU session includes one or more of the following (see S330-S360 in conjunction with the embodiment shown in FIG. 3, and S510-S520 in conjunction with the embodiment shown in FIG. 5, and in conjunction with FIG. Related description of S603-S611 in the embodiment):
终端通知SMF修改或释放PDU会话;The terminal notifies the SMF to modify or release the PDU session;
终端将PDU会话标记为不可用;The terminal marks the PDU session as unavailable;
SMF将PDU会话标记为不可用;The SMF marks the PDU session as unavailable;
SMF通知UPF丢弃PDU会话对应的下行数据;The SMF notifies the UPF to drop the downlink data corresponding to the PDU session;
SMF通知UPF停止向SMF发送下行数据通知DDN。The SMF notifies the UPF to stop sending the downlink data notification DDN to the SMF.
当第一消息包括LADN的信息,并且第二注册区域不包括LADN的信息时;或者,
当第一消息包括LADN的信息,并且第一注册区域在收到第一消息之前不包括LADN的信息时;修改或者释放PDU会话包括下述一项或多项(可参见结合图4所示的实施例中S430-S460的相关描述):When the first message includes information of the LADN, and the second registration area does not include the information of the LADN; or,
When the first message includes information of the LADN, and the first registration area does not include the information of the LADN before receiving the first message; modifying or releasing the PDU session includes one or more of the following (refer to the combination shown in FIG. 4) Related description of S430-S460 in the embodiment):
终端通知SMF修改PDU会话;The terminal notifies the SMF to modify the PDU session;
终端将PDU会话标记为可用;The terminal marks the PDU session as available;
SMF将PDU会话标记为可用;The SMF marks the PDU session as available;
SMF通知UPF发送PDU会话对应的下行数据;The SMF notifies the UPF to send downlink data corresponding to the PDU session;
所述SMF通知UPF发送PDU会话对应的下行数据通知DDN。The SMF notifies the UPF to send a downlink data notification DDN corresponding to the PDU session.
可以在网络侧修改或释放PDU会话后,通知终端,以便终端同步修改或释放该PDU会话,从而降低了由于PDU会话的存在,但是终端确不处于LADN的服务区域时,寻呼终端造成的信令浪费。终端通过对PDU会话进行标记,可以统计终端连续进入不包括LADN的服务区域的注册区域次数,从而设置规则,在连续进入不包括LADN的服务区域的注册区域小于或等于设定次数的情况下,终端修改该PDU会话,当达到或超过该设定次数的情况下,终端释放该PDU会话,对接入LADN的PDU会话的管理粒度更细。After modifying or releasing the PDU session on the network side, the terminal may be notified, so that the terminal can modify or release the PDU session synchronously, thereby reducing the message caused by the paging terminal when the terminal is not in the service area of the LADN due to the existence of the PDU session. Make a waste. By marking the PDU session, the terminal can count the number of times the terminal continuously enters the registration area of the service area that does not include the LADN, thereby setting a rule. When the registration area of the service area that does not include the LADN is continuously less than or equal to the set number of times, The terminal modifies the PDU session. When the set number of times is reached or exceeded, the terminal releases the PDU session, and the management granularity of the PDU session accessing the LADN is finer.
另外,还可以在终端重新进入包括LADN的服务区域的RA时,重新启用该接入LADN的PDU会话,以便进行数据传输,从而从更细的粒度对PDU会话进行管理,并且使得网络设备对于终端的寻呼更合理,节省了信令,提高了效率。In addition, when the terminal re-enters the RA of the service area including the LADN, the PDU session of the access LADN can be re-enabled for data transmission, thereby managing the PDU session from a finer granularity, and making the network device to the terminal. The paging is more reasonable, saving signaling and improving efficiency.
通过本申请实施例可以实现,对于LADN的会话,当终端进入到不支持LADN的注册区域时,由终端修改或释放PDU会话,从而减少了由于终端处于不支持LADN的RA内,网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。还The embodiment of the present application can be implemented. For a session of the LADN, when the terminal enters the registration area that does not support the LADN, the terminal modifies or releases the PDU session, thereby reducing the network device because the terminal is in the RA that does not support the LADN. The PDU session accessing the LADN has downlink data arriving and signaling waste caused by the paging terminal. also
图9为本申请实施例提供的另一种会话管理的方法的信令交互示意图。如图9所示,该方法包括:FIG. 9 is a schematic diagram of signaling interaction of another method for session management according to an embodiment of the present disclosure. As shown in FIG. 9, the method includes:
S910,UPF向SMF发送DDN。该DNN用于指示有接入LADN的PDU会话对应的下行数据需要传输。S910. The UPF sends a DDN to the SMF. The DNN is used to indicate that downlink data corresponding to a PDU session with access to the LADN needs to be transmitted.
S920,SMF调用AMF提供的第一服务,该第一服务用于SMF请求AMF向接入节点AN发送消息或者信息,例如N2SM information。该SMF通过AMF向接入节点AN发送的消息或者信息用于指示SMF请求AMF将消息或者信息发送给AN。S920. The SMF invokes a first service provided by the AMF, where the first service is used by the SMF to request the AMF to send a message or information, such as N2SM information, to the access node AN. The message or information sent by the SMF to the access node AN through the AMF is used to instruct the SMF to request the AMF to send the message or information to the AN.
S930,AMF确定该PDU会话为LADN对应的会话,并且终端的当前注册区域无可用的LADN的服务区域。S930. The AMF determines that the PDU session is a session corresponding to the LADN, and the current registration area of the terminal has no service area of the available LADN.
S940,AMF向SMF发送指示参数,该指示参数用于指示当前注册区域内不包括LADN的信息,该指示参数可以为S920中消息的确认。S940, the AMF sends an indication parameter to the SMF, where the indication parameter is used to indicate that the LADN information is not included in the current registration area, and the indication parameter may be an acknowledgement of the message in S920.
如果下行数据属于接入LADN的PDU会话,AMF判断当前RA中没有LADN的服务区域,则向SMF发送当前注册区域LADN不可用的指示(LADN unavailable indication in current TA)。AMF保存向SMF发送过LADN unavailable indication in current TA的指示,待终端再次进入到包括LADN的服务区域的RA后通知SMF。If the downlink data belongs to the PDU session accessing the LADN, the AMF determines that the service area without the LADN in the current RA, and sends an indication (LADN unavailable indication in current TA) that the current registration area LADN is unavailable to the SMF. The AMF saves an indication that the LADN unavailable indication in current TA is sent to the SMF, and notifies the SMF after the terminal re-enters the RA of the service area including the LADN.
AMF可以保存已向SMF发送指示参数的信息。可以在终端重新进入包括LADN的服务区域的RA时,通知SMF重新启用该接入LADN的PDU会话,以便进行数据传输,从而从更细的粒度对PDU会话进行管理,并且使得网络设备对于终端的寻呼更合理,节省
了信令,提高了效率。The AMF can save information that has sent indication parameters to the SMF. When the terminal re-enters the RA of the service area including the LADN, the SMF may be notified to re-enable the PDU session of the access LADN for data transmission, thereby managing the PDU session from a finer granularity, and making the network device to the terminal Paging is more reasonable and saves
Signaling has improved efficiency.
S950,SMF根据指示参数修改PDU会话。S950: The SMF modifies the PDU session according to the indication parameter.
SMF根据指示参数修改PDU会话,包括SMF执行下述一项或多项:The SMF modifies the PDU session according to the indication parameters, including the SMF performing one or more of the following:
通知UPF丢弃PDU会话对应的下行数据;Notifying the UPF to drop the downlink data corresponding to the PDU session;
通知UPF停止向SMF发送所述PDU会话对应的下行数据通知DDN。The UPF is notified to stop sending the downlink data notification DDN corresponding to the PDU session to the SMF.
图10为本申请实施例提供的另一个示例。如图10所示,该方法具体包括如下步骤:FIG. 10 is another example provided by an embodiment of the present application. As shown in FIG. 10, the method specifically includes the following steps:
S1001,终端向AMF发送注册请求消息。S1001: The terminal sends a registration request message to the AMF.
当终端发生移动时,从一个RA移动到另一个RA,AMF可能发生变化,此时,终端可以在新的AMF进行注册。When the terminal moves, moving from one RA to another, the AMF may change, at which point the terminal can register with the new AMF.
S1002,AMF确定终端的LADN的可用状态发生变化。S1002, the AMF determines that the available state of the LADN of the terminal changes.
如果,SMF在S1001之前,向AMF订阅了通知服务。该通知服务用于当预设事件发生时,AMF通知SMF,其中,预设事件为有无LADN的信息发生变化。此时可执行S1002。其中,SMF向AMF订阅通知服务可以参见结合图7所示的实施例中的描述。If, the SMF subscribed to the AMF notification service before S1001. The notification service is used by the AMF to notify the SMF when a preset event occurs, wherein the preset event changes for the presence or absence of the LADN. S1002 can be executed at this time. The SMF subscription notification service to the AMF can be referred to the description in the embodiment shown in FIG. 7.
S1003,AMF向SMF发送通知信息。S1003. The AMF sends a notification message to the SMF.
如果,SMF向AMF订阅了通知服务,AMF在S1002中确定终端的LADN的可用状态发生变化时,需要向SMF发送通知信息,该通知信息可以参见结合图7所示的实施例中的描述。If the SMF subscribes to the AMF to the notification service, the AMF needs to send the notification information to the SMF when it is determined in S1002 that the available state of the LADN of the terminal changes. The notification information can be referred to the description in the embodiment shown in FIG.
SMF在接收到通知信息后,可返回响应。After receiving the notification message, the SMF can return a response.
SMF在接收到通知信息后,可执行S1005b,SMF修改或释放接入LADN的PDU会话。其中,SMF修改或释放接入LADN的PDU会话可以参见结合图7所示的实施例中的描述。After receiving the notification information, the SMF may perform S1005b, and the SMF modifies or releases the PDU session accessing the LADN. The SMF modifies or releases the PDU session accessing the LADN. Referring to the description in the embodiment shown in FIG.
S1004,AMF向终端发送注册接受消息。S1004. The AMF sends a registration accept message to the terminal.
若终端的注册区域包括LADN的信息,AMF向终端的注册接收消息可以包括LADN的信息,否则,则不包括。其中,AMF向终端发送注册接受消息,可以参见结合图3-图6以及图8所示的实施例中的描述。If the registration area of the terminal includes the LADN information, the AMF registration message to the terminal may include the LADN information, otherwise it is not included. The AMF sends a registration accept message to the terminal. For details, refer to the description in the embodiments shown in FIG. 3-6 and FIG.
当终端根据S1004中接收到的注册接受消息,确定注册区域有无LADN的信息发生变化时,执行S1005a,终端修改或释放接入LADN的PDU会话。终端修改或释放接入LADN的PDU会话,可以参见结合图3-图6以及图8所示的实施例中的描述。When the terminal determines, according to the registration accept message received in S1004, that the information of the LADN in the registration area changes, the S1005a is executed, and the terminal modifies or releases the PDU session accessing the LADN. The terminal modifies or releases the PDU session accessing the LADN. See the description in the embodiment shown in FIG. 3-6 and FIG.
图11为本申请实施例提供的一种终端的结构示意图。如图11所示,该终端包括接收单元1101、确定单元1102、修改单元1103,还可以包括发送单元1104。其中,终端存在接入本地区域数据网络LADN的协议数据单元PDU会话,具体地,FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in FIG. 11, the terminal includes a receiving unit 1101, a determining unit 1102, a modifying unit 1103, and a transmitting unit 1104. The terminal has a protocol data unit PDU session accessing the local area data network LADN, specifically,
接收单元1101,用于在第一注册区域RA内接收接入与移动管理功能实体AMF发送的第一消息,所述第一消息包括或者不包括所述LADN的信息;其中,所述第一RA为所述终端的当前注册区域;The receiving unit 1101 is configured to receive, in the first registration area RA, a first message that is sent by the access management function entity AMF, where the first message includes or does not include information of the LADN; wherein the first RA Is the current registration area of the terminal;
确定单元1102,用于根据第一消息确定所述LADN的可用状态发生变化;a determining unit 1102, configured to determine, according to the first message, that an available state of the LADN changes;
修改单元1103,用于修改所述PDU会话;或者,释放单元,用于释放所述PDU会话。The modifying unit 1103 is configured to modify the PDU session, or a releasing unit, configured to release the PDU session.
可选地,确定单元1102还用于,Optionally, the determining unit 1102 is further configured to:
当所述第一消息不包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内包括所述LADN的信息时,确定所述LADN的可用状态发生变化;或者
Determining that the available state of the LADN changes when the first message does not include the information of the LADN and the information of the LADN is included in the first RA before the terminal receives the first message; Or
当所述第一消息不包括所述LADN的信息、且第二RA内包括所述LADN的信息时,确定所述LADN的可用状态发生变化;Determining that the available state of the LADN changes when the first message does not include the information of the LADN and the information of the LADN is included in the second RA;
所述第二RA为所述终端进入所述第一RA之前的RA。The second RA is an RA before the terminal enters the first RA.
可选地,所述发送单元1104用于,用于向会话管理功能实体SMF发送第一会话修改请求消息,所述第一会话修改请求消息包括第一指示,所述第一指示用于指示第一RA内不包括所述LADN的信息;或者,向SMF发送会话释放请求消息。Optionally, the sending unit 1104 is configured to send, to the session management function entity SMF, a first session modification request message, where the first session modification request message includes a first indication, where the first indication is used to indicate The information of the LADN is not included in an RA; or a session release request message is sent to the SMF.
可选地,接收单元1101还用于,接收所述SMF发送的第一会话修改命令消息,所述第一会话修改命令消息包括所述PDU会话的标识和第一参数,所述PDU会话的标识用于识别所述PDU会话,所述第一参数用于指示PDU会话不可用。Optionally, the receiving unit 1101 is further configured to receive a first session modification command message sent by the SMF, where the first session modification command message includes an identifier of the PDU session and a first parameter, and an identifier of the PDU session For identifying the PDU session, the first parameter is used to indicate that the PDU session is unavailable.
可选地,修改单元1103还用于,所述终端将所述PDU会话标记为不可用。Optionally, the modifying unit 1103 is further configured to: mark, by the terminal, that the PDU session is unavailable.
可选地,确定单元1102还用于,当所述第一消息包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内不包括所述LADN的信息时,确定所述LADN的可用状态发生变化;或者,当所述第一消息包括所述LADN的信息、且第二RA内不包括所述LADN的信息时,确定所述LADN的可用状态发生变化;所述第二RA为所述终端进入所述第一RA之前的RA。Optionally, the determining unit 1102 is further configured to: when the first message includes the information of the LADN, and the information of the LADN is not included in the first RA before the terminal receives the first message, Determining that the available state of the LADN changes; or, when the first message includes the information of the LADN, and the information of the LADN is not included in the second RA, determining that the available state of the LADN changes; The second RA is an RA before the terminal enters the first RA.
可选地,发送单元1101还用于,向SMF发送第二会话修改请求消息,所述第二会话修改请求消息包括第二指示,所述第二指示用于指示第一RA内包括所述LADN的信息。Optionally, the sending unit 1101 is further configured to send, to the SMF, a second session modification request message, where the second session modification request message includes a second indication, where the second indication is used to indicate that the LADN is included in the first RA Information.
可选地,接收单元1104还用于,Optionally, the receiving unit 1104 is further configured to:
接收所述SMF发送的第二会话修改命令消息,所述第二会话修改命令消息包括第二参数,所述第二参数用于指示PDU会话可用。Receiving a second session modification command message sent by the SMF, where the second session modification command message includes a second parameter, where the second parameter is used to indicate that the PDU session is available.
可选地,修改单元1103还用于,将所述PDU会话标记为可用。Optionally, the modifying unit 1103 is further configured to mark the PDU session as available.
所述终端可作为如图3至图6、图8和图10所述的会话管理方法的终端,并执行图3至图6、图8和图10中终端所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The terminal can function as a terminal of the session management method as described in FIGS. 3 to 6, 8, and 10, and performs the steps performed by the terminal in FIGS. 3 to 6, 8, and 10. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图12为本申请实施例提供的一种SMF的结构示意图。如图12所示,该SMF包括接收单元1201、修改单元1202,还可以包括发送单元1203。所述SMF存在接入本地区域数据网络LADN的协议数据单元PDU会话,所述SMF包括:FIG. 12 is a schematic structural diagram of an SMF according to an embodiment of the present application. As shown in FIG. 12, the SMF includes a receiving unit 1201, a modifying unit 1202, and a transmitting unit 1203. The SMF has a protocol data unit PDU session accessing the local area data network LADN, and the SMF includes:
接收单元1201,用于用于接收终端发送的会话修改请求消息,所述会话修改请求消息包括指示,所述指示用于指示注册区域包括或者不包括所述LADN的信息;The receiving unit 1201 is configured to receive a session modification request message sent by the terminal, where the session modification request message includes an indication, where the indication is used to indicate that the registration area includes or does not include information of the LADN;
修改单元1202,用于根据指示修改所述PDU会话。The modifying unit 1202 is configured to modify the PDU session according to the indication.
可选地,还包括,发送单元1203用于当所述指示用于是指示所述终端的RA不包括LADN的信息时,向所述终端发送第一会话修改命令消息,所述第一会话修改命令消息包括所述PDU会话的标识和第一参数,所述第一参数用于指示PDU会话不可用。Optionally, the method further includes: sending, by the sending unit 1203, when the indication is used to indicate that the RA of the terminal does not include the LADN, sending, by the terminal, a first session modification command message, where the first session modification command is The message includes an identifier of the PDU session and a first parameter, and the first parameter is used to indicate that the PDU session is unavailable.
可选地,修改单元1202还用于,将所述PDU会话标记为不可用;通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;通知所述UPF停止向所述SMF发送下行数据通知DDN。Optionally, the modifying unit 1202 is further configured to: mark the PDU session as unavailable; notify the user plane function entity UPF to discard downlink data corresponding to the PDU session; and notify the UPF to stop sending downlink data notification to the SMF. DDN.
可选地,发送单元1203还用于,当所述指示用于是指示所述终端的RA不包括LADN的信息时,向所述终端发送第二会话修改命令消息,所述第二会话修改命令消息包括所述
PDU会话的标识和第二参数,所述第二参数用于指示所述PDU会话可用。Optionally, the sending unit 1203 is further configured to: when the indication is used to indicate that the RA of the terminal does not include the LADN, send a second session modification command message to the terminal, where the second session modification command message is Including the stated
An identifier of the PDU session and a second parameter, the second parameter is used to indicate that the PDU session is available.
可选地,修改单元1202还用于,将所述PDU会话标记为可用;通知UPF发送所述PDU会话对应的下行数据;通知所述UPF发送所述PDU会话对应的下行数据通知DDN。Optionally, the modifying unit 1202 is further configured to: mark the PDU session as available; notify the UPF to send downlink data corresponding to the PDU session; and notify the UPF to send a downlink data notification DDN corresponding to the PDU session.
所述SMF可作为如图3至图6、图8和图10所述的会话管理方法的SMF,并执行图3至图6、图8和图10中SMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The SMF can be used as the SMF of the session management method as described in FIGS. 3 to 6, 8, and 10, and the steps performed by the SMFs in FIGS. 3 to 6, 8 and 10 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图13为本申请实施例提供的另一种SMF结构示意图。如图13所示,该SMF包括订阅单元1301,还可以包括接收单元1302以及修改单元1303。所述SMF存在终端接入本地区域数据网络LADN的协议数据单元PDU会话,具体地,FIG. 13 is a schematic structural diagram of another SMF according to an embodiment of the present disclosure. As shown in FIG. 13, the SMF includes a subscribing unit 1301, and may further include a receiving unit 1302 and a modifying unit 1303. The SMF has a protocol data unit PDU session in which the terminal accesses the local area data network LADN, specifically,
订阅单元1301,用于向接入与移动管理功能实体AMF订阅通知服务,所述通知服务用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化。a subscription unit 1301, configured to subscribe to a notification service to the access and mobility management function entity AMF, where the notification service is used to notify the SMF when a preset event occurs, where the preset event is LADN The available status changes.
可选地,订阅单元1301还用于,Optionally, the subscription unit 1301 is further configured to:
向所述AMF发送所述LADN的数据网络名称DNN和所述预设事件,以向所述AMF订阅所述通知服务。Transmitting the data network name DNN of the LADN and the preset event to the AMF to subscribe to the notification service to the AMF.
可选地,LADN的可用状态发生变化,包括下述至少一种:Optionally, the available state of the LADN changes, including at least one of the following:
第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息;The information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;
第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;Information in the first registration area is changed from information including the LADN to information not including the LADN;
第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;或者,The first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area; or
第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;Information that does not include the LADN in the first registration area is changed to information including the LADN;
其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入到所述第一注册区域之前的注册区域。The first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
可选地,还包括:Optionally, it also includes:
接收单元1302,用于接收所述AMF发送的通知信息,所述通知信息用于通知所述终端的注册区域内包括或者不包括所述LADN的信息。The receiving unit 1302 is configured to receive the notification information sent by the AMF, where the notification information is used to notify information in the registration area of the terminal that the LADN is included or not included.
可选地,还包括:Optionally, it also includes:
修改单元1303,用于根据所述通知信息修改所述PDU会话。The modifying unit 1303 is configured to modify the PDU session according to the notification information.
可选地,修改单元1303还用于,Optionally, the modifying unit 1303 is further configured to:
当所述通知信息用于通知所述终端的注册区域不包括所述LADN的信息时,通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN;When the notification information is used to notify that the registration area of the terminal does not include the information of the LADN, notify the user plane function entity UPF to discard the downlink data corresponding to the PDU session; notify the UPF to stop sending the PDU to the SMF. The downlink data corresponding to the session is notified to the DDN;
或者,or,
当所述通知信息用于通知所述终端的注册区域包括所述LADN的信息时,通知所述UPF发送所述PDU会话对应的下行数据;通知所述UPF发送所述PDU会话对应的下行数据通知DDN。When the notification information is used to notify that the registration area of the terminal includes the information of the LADN, notify the UPF to send downlink data corresponding to the PDU session; and notify the UPF to send a downlink data notification corresponding to the PDU session. DDN.
所述SMF可作为如图7和图10所述的服务订阅方法的SMF,并执行图7和图10中SMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成
的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The SMF can be used as the SMF of the service subscription method as described in FIGS. 7 and 10, and the steps performed by the SMF in FIGS. 7 and 10 are performed. Thereby reducing the network modification or release of the PDU session when the terminal is in the idle state
The loss of data also reduces the signaling waste caused by the paging terminal because the network device accesses the LADN PDU session with downlink data arriving.
图14为本申请实施例提供的一种AMF的结构示意图。如图14所示,该AMF包括订阅单元1401,还可以包括接收单元1402。会话管理功能实体SMF存在终端接入本地区域数据网络LADN的协议数据单元PDU会话,包括:FIG. 14 is a schematic structural diagram of an AMF according to an embodiment of the present application. As shown in FIG. 14, the AMF includes a subscribing unit 1401, and may further include a receiving unit 1402. The session management function entity SMF has a protocol data unit PDU session in which the terminal accesses the local area data network LADN, and includes:
订阅单元1401,用于接收所述SMF订阅通知服务,所述通知服务用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化。The subscription unit 1401 is configured to receive the SMF subscription notification service, where the notification service is used to notify the SMF when a preset event occurs, where the preset event is a change in an available state of the LADN.
可选地,所述订阅单元1402还用于,Optionally, the subscription unit 1402 is further configured to:
接收所述SMF发送所述LADN的数据网络名称DNN和所述预设事件,以接受所述SMF订阅所述通知服务。Receiving, by the SMF, the data network name DNN of the LADN and the preset event to accept the SMF to subscribe to the notification service.
可选地,所述LADN的可用状态发生变化,包括下述至少一种:Optionally, the available state of the LADN changes, including at least one of the following:
第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息;The information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;
第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;Information in the first registration area is changed from information including the LADN to information not including the LADN;
第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;The first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area;
第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;Information that does not include the LADN in the first registration area is changed to information including the LADN;
其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入到所述第一注册区域之前的注册区域。The first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
可选地,还包括:Optionally, it also includes:
发送单元1402,用于向所述SMF发送通知信息,所述通知信息用于通知所述终端的注册区域包括或者不包括所述LADN的信息。The sending unit 1402 is configured to send, to the SMF, notification information, where the notification information is used to notify the registration area of the terminal that the information of the LADN is included or not.
所述AMF可作为如图7和图10所述的服务订阅的方法的AMF,并执行图7和图10中SMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The AMF can be used as the AMF of the method of service subscription as described in FIGS. 7 and 10, and the steps performed by the SMF in FIGS. 7 and 10 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图15本申请实施例提供的另一种SMF的结构示意图。如图15所示,所述SMF存在接入LADN的PDU会话,所述SMF包括:FIG. 15 is a schematic structural diagram of another SMF provided by an embodiment of the present application. As shown in FIG. 15, the SMF has a PDU session accessing a LADN, and the SMF includes:
接收单元1501,用于接收用户面功能实体UPF发送的所述PDU会话对应的下行数据通知;The receiving unit 1501 is configured to receive a downlink data notification corresponding to the PDU session sent by the user plane function entity UPF;
发送单元1502,用于调用接入与移动管理实体AMF提供的第一服务,所述第一服务用于所述SMF通过所述AMF向接入节点AN发送消息。;The sending unit 1502 is configured to invoke a first service provided by the access and mobility management entity AMF, where the first service is used by the SMF to send a message to the access node AN by using the AMF. ;
接收单元1501还用于,接收AMF发送的指示参数,所述指示参数用于指示当前注册区域内不包括所述LADN的信息;The receiving unit 1501 is further configured to receive an indication parameter sent by the AMF, where the indication parameter is used to indicate that the LADN information is not included in the current registration area;
修改单元1503,用于根据所述指示参数修改所述PDU会话。The modifying unit 1503 is configured to modify the PDU session according to the indication parameter.
可选地,所述修改单元1503还用于,Optionally, the modifying unit 1503 is further configured to:
通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;Notifying the user plane function entity UPF to discard the downlink data corresponding to the PDU session;
通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN。The UPF is notified to stop sending the downlink data notification DDN corresponding to the PDU session to the SMF.
所述SMF可作为如图9所述的会话管理方法的SMF,并执行图9中SMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪
费。The SMF can be used as the SMF of the session management method as described in FIG. 9, and the steps performed by the SMF in FIG. 9 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling wave caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
fee.
图16为本申请实施例提供的另一种AMF的结构示意图。如图16所示,SMF存在接入本地区域数据网络LADN的协议数据单元PDU会话,该AMF包括:FIG. 16 is a schematic structural diagram of another AMF according to an embodiment of the present disclosure. As shown in FIG. 16, the SMF has a protocol data unit PDU session accessing the local area data network LADN, and the AMF includes:
接收单元1601,用于接收所述SMF调用的第一服务,所述第一服务用于所述SMF通过所述AMF向接入节点AN发送消息;The receiving unit 1601 is configured to receive a first service that is invoked by the SMF, where the first service is used by the SMF to send a message to the access node AN by using the AMF;
发送单元1602,用于当所述终端的注册区域内不包括LADN的服务区域时,向SMF发送指示参数,所述指示参数用于指示注册区域内不包括所述LADN的信息。The sending unit 1602 is configured to send an indication parameter to the SMF when the service area of the LADN is not included in the registration area of the terminal, where the indication parameter is used to indicate that the LADN information is not included in the registration area.
可选地,还包括:Optionally, it also includes:
保存单元,用于保存已向所述SMF发送所述指示参数的信息。And a saving unit, configured to save information that the indication parameter has been sent to the SMF.
所述AMF可作为如图9所述的会话管理方法的AMF,并执行图9中AMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The AMF can be used as the AMF of the session management method as described in FIG. 9, and the steps performed by the AMF in FIG. 9 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图17为本申请实施例提供的另一种终端的结构示意图。如图17所示,该终端包括收发器1701、处理器1702和存储器1703,收发器1701用于与AMF、UPF或者SMF进行通信;所述存储器1703用于存放程序;所述处理器1702用于执行所述存储器存储的所述程序,以执行前述图3-图6、图8中终端执行的步骤。其中,终端存在接入LADN的PDU会话,具体地,FIG. 17 is a schematic structural diagram of another terminal according to an embodiment of the present application. As shown in FIG. 17, the terminal includes a transceiver 1701, a processor 1702, and a memory 1703 for communicating with an AMF, a UPF, or an SMF; the memory 1703 is for storing a program; the processor 1702 is for The program stored in the memory is executed to perform the steps performed by the terminal in the foregoing FIGS. 3-6 and 8. The terminal has a PDU session accessing the LADN, specifically,
收发器1701,用于在第一注册区域RA内接收接入与移动管理功能实体AMF发送的第一消息,所述第一消息包括或者不包括所述LADN的信息;其中,所述第一RA为所述终端的当前注册区域;The transceiver 1701 is configured to receive, in the first registration area RA, a first message sent by the access and mobility management function entity AMF, where the first message includes or does not include information of the LADN; wherein the first RA Is the current registration area of the terminal;
处理器1702,用于根据第一消息确定所述LADN的可用状态发生变化;The processor 1702 is configured to determine, according to the first message, that an available state of the LADN changes;
处理器1702,用于修改所述PDU会话;或者,用于释放所述PDU会话。The processor 1702 is configured to modify the PDU session; or, to release the PDU session.
可选地,处理器1702还用于,Optionally, the processor 1702 is further configured to:
当所述第一消息不包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内包括所述LADN的信息时,确定所述LADN的可用状态发生变化;或者Determining that the available state of the LADN changes when the first message does not include the information of the LADN and the information of the LADN is included in the first RA before the terminal receives the first message; or
当所述第一消息不包括所述LADN的信息、且所述第二RA内包括所述LADN的信息时,确定所述LADN的可用状态发生变化;Determining that the available state of the LADN changes when the first message does not include the information of the LADN and the information of the LADN is included in the second RA;
所述第二RA为所述终端进入所述第一RA之前的RA。The second RA is an RA before the terminal enters the first RA.
可选地,收发器1701用于,用于向会话管理功能实体SMF发送第一会话修改请求消息,所述第一会话修改请求消息包括第一指示,所述第一指示用于指示第一RA内不包括所述LADN的信息;或者,向SMF发送会话释放请求消息。Optionally, the transceiver 1701 is configured to send, to the session management function entity SMF, a first session modification request message, where the first session modification request message includes a first indication, where the first indication is used to indicate the first RA The information of the LADN is not included therein; or a session release request message is sent to the SMF.
可选地,收发器1701还用于,接收所述SMF发送的第一会话修改命令消息,所述第一会话修改命令消息包括所述PDU会话的标识和第一参数,所述PDU会话的标识用于识别所述PDU会话,所述第一参数用于指示PDU会话不可用。Optionally, the transceiver 1701 is further configured to receive a first session modification command message sent by the SMF, where the first session modification command message includes an identifier of the PDU session and a first parameter, and an identifier of the PDU session. For identifying the PDU session, the first parameter is used to indicate that the PDU session is unavailable.
可选地,处理器1702还用于,所述终端将所述PDU会话标记为不可用。Optionally, the processor 1702 is further configured to: mark, by the terminal, that the PDU session is unavailable.
可选地,处理器1702还用于,当所述第一消息包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内不包括所述LADN的信息时,确定所述LADN的可用状态发生变化;或者,当所述第一消息包括所述LADN的信息、且第二RA内不包括
所述LADN的信息时,确定所述LADN的可用状态发生变化;Optionally, the processor 1702 is further configured to: when the first message includes the information of the LADN, and the information of the LADN is not included in the first RA before the terminal receives the first message, Determining that the available state of the LADN changes; or, when the first message includes information of the LADN, and the second RA does not include
Determining the available state of the LADN when the information of the LADN is changed;
所述第二RA为所述终端进入所述第一RA之前的RA。The second RA is an RA before the terminal enters the first RA.
可选地,收发器1701还用于,向SMF发送第二会话修改请求消息,所述第二会话修改请求消息包括第二指示,所述第二指示用于指示终端的注册区域包括LADN的信息。Optionally, the transceiver 1701 is further configured to send a second session modification request message to the SMF, where the second session modification request message includes a second indication, where the second indication is used to indicate that the registration area of the terminal includes the LADN information. .
可选地,收发器1701还用于,Optionally, the transceiver 1701 is also used to,
接收所述SMF发送的第二会话修改命令消息,所述第二会话修改命令消息包括第二参数,所述第二参数用于指示PDU会话可用。Receiving a second session modification command message sent by the SMF, where the second session modification command message includes a second parameter, where the second parameter is used to indicate that the PDU session is available.
可选地,处理器1702还用于,将所述PDU会话标记为可用。Optionally, the processor 1702 is further configured to mark the PDU session as available.
所述终端可作为如图3至图6、图8和图10所述的会话管理方法的终端,并执行图3至图6、图8和图10中终端所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The terminal can function as a terminal of the session management method as described in FIGS. 3 to 6, 8, and 10, and performs the steps performed by the terminal in FIGS. 3 to 6, 8, and 10. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图18为本申请实施例提供的另一种SMF的结构示意图。如图18所示,该SMF包括收发器1801、处理器1802和存储器1803,收发器1801用于与AMF、UPF或者终端进行通信;所述存储器1803用于存放程序;所述处理器1802用于执行所述存储器存储的所述程序,以执行前述图3-图6、图8和图10中SMF执行的步骤。所述SMF存在接入LADN的PDU会话,具体地:FIG. 18 is a schematic structural diagram of another SMF according to an embodiment of the present application. As shown in FIG. 18, the SMF includes a transceiver 1801, a processor 1802, and a memory 1803, the transceiver 1801 is configured to communicate with an AMF, a UPF, or a terminal; the memory 1803 is configured to store a program; the processor 1802 is configured to: The program stored in the memory is executed to perform the steps performed by the SMFs in the aforementioned FIGS. 3-6, 8, and 10. The SMF has a PDU session accessing the LADN, specifically:
收发器1801,用于接收终端发送的会话修改请求消息,所述会话修改请求消息包括指示,所述指示用于指示注册区域包括或者不包括所述LADN的信息;The transceiver 1801 is configured to receive a session modification request message sent by the terminal, where the session modification request message includes an indication, where the indication is used to indicate that the registration area includes or does not include information of the LADN;
处理器1802,用于根据指示修改所述PDU会话。The processor 1802 is configured to modify the PDU session according to the indication.
可选地,还包括,收发器1801用于当所述指示用于是指示所述终端的RA不包括LADN的信息时,向所述终端发送第一会话修改命令消息,所述第一会话修改命令消息包括所述PDU会话的标识和第一参数,所述第一参数用于指示PDU会话不可用。Optionally, the transceiver 1801 is configured to: when the indication is used to indicate that the RA of the terminal does not include the LADN, send a first session modification command message to the terminal, where the first session modification command is The message includes an identifier of the PDU session and a first parameter, and the first parameter is used to indicate that the PDU session is unavailable.
可选地,处理器1802还用于,将所述PDU会话标记为不可用;通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;通知所述UPF停止向所述SMF发送下行数据通知DDN。Optionally, the processor 1802 is further configured to: mark the PDU session as unavailable; notify the user plane function entity UPF to discard downlink data corresponding to the PDU session; and notify the UPF to stop sending downlink data notification to the SMF. DDN.
可选地,收发器1801还用于,当所述指示用于是指示所述终端的RA不包括LADN的信息时,向所述终端发送第二会话修改命令消息,所述第二会话修改命令消息包括所述PDU会话的标识和第二参数,所述第二参数用于指示所述PDU会话可用。Optionally, the transceiver 1801 is further configured to: when the indication is used to indicate that the RA of the terminal does not include the LADN, send a second session modification command message to the terminal, where the second session modification command message is And including an identifier of the PDU session and a second parameter, where the second parameter is used to indicate that the PDU session is available.
可选地,处理器1802还用于,将所述PDU会话标记为可用;通知UPF发送所述PDU会话对应的下行数据;通知所述UPF发送所述PDU会话对应的下行数据通知DDN。Optionally, the processor 1802 is further configured to: mark the PDU session as available; notify the UPF to send downlink data corresponding to the PDU session; and notify the UPF to send a downlink data notification DDN corresponding to the PDU session.
所述SMF可作为如图3至图6、图8和图10所述的会话管理方法的SMF,并执行图3至图6、图8和图10中SMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The SMF can be used as the SMF of the session management method as described in FIGS. 3 to 6, 8, and 10, and the steps performed by the SMFs in FIGS. 3 to 6, 8 and 10 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图19为本申请实施例提供的另一种SMF的结构示意图。该SMF包括收发器1901、处理器1902和存储器1903,收发器1901用于与AMF、UPF或者终端进行通信;所述存储器1903用于存放程序;所述处理器1902用于执行所述存储器存储的所述程序,以执行前述图7和图10中SMF执行的步骤。所述SMF存在接入LADN的PDU会话,具体地:
FIG. 19 is a schematic structural diagram of another SMF according to an embodiment of the present disclosure. The SMF includes a transceiver 1901, a processor 1902 for communicating with an AMF, a UPF, or a terminal, and a memory 1903 for storing a program; the processor 1902 for executing the memory storage The program is to perform the steps performed by the SMFs in the aforementioned FIGS. 7 and 10. The SMF has a PDU session accessing the LADN, specifically:
处理器1902,用于向接入与移动管理功能实体AMF订阅通知服务,所述通知服务用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化。The processor 1902 is configured to subscribe to a notification service to the access and mobility management function entity AMF, where the notification service is used to notify the SMF when a preset event occurs, where the preset event is LADN The available status changes.
可选地,处理器1902还用于,Optionally, the processor 1902 is further configured to:
向所述AMF发送所述LADN的数据网络名称DNN和所述预设事件,以向所述AMF订阅所述通知服务。Transmitting the data network name DNN of the LADN and the preset event to the AMF to subscribe to the notification service to the AMF.
可选地,LADN的可用状态发生变化,包括下述至少一种:Optionally, the available state of the LADN changes, including at least one of the following:
第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息;The information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;
第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;Information in the first registration area is changed from information including the LADN to information not including the LADN;
第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;或者,The first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area; or
第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;Information that does not include the LADN in the first registration area is changed to information including the LADN;
其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入到所述第一注册区域之前的注册区域。The first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
可选地,还包括:Optionally, it also includes:
收发器1901,用于接收所述AMF发送的通知信息,所述通知信息用于通知所述终端的注册区域包括或者不包括所述LADN的信息。The transceiver 1901 is configured to receive notification information sent by the AMF, where the notification information is used to notify that the registration area of the terminal includes or does not include information of the LADN.
可选地,还包括:Optionally, it also includes:
处理器1902,用于根据所述通知信息修改所述PDU会话。The processor 1902 is configured to modify the PDU session according to the notification information.
可选地,处理器1902还用于,Optionally, the processor 1902 is further configured to:
当所述通知信息用于通知所述终端的注册区域不包括所述LADN的信息时,通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN;When the notification information is used to notify that the registration area of the terminal does not include the information of the LADN, notify the user plane function entity UPF to discard the downlink data corresponding to the PDU session; notify the UPF to stop sending the PDU to the SMF. The downlink data corresponding to the session is notified to the DDN;
或者,or,
当所述通知信息用于通知所述终端的注册区域包括所述LADN的信息时,通知所述UPF发送所述PDU会话对应的下行数据;通知所述UPF发送所述PDU会话对应的下行数据通知DDN。When the notification information is used to notify that the registration area of the terminal includes the information of the LADN, notify the UPF to send downlink data corresponding to the PDU session; and notify the UPF to send a downlink data notification corresponding to the PDU session. DDN.
所述SMF可作为如图7或图10所述的服务订阅的方法的SMF,并执行图7或图10中SMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The SMF can be used as the SMF of the method of service subscription as described in FIG. 7 or FIG. 10, and the steps performed by the SMF in FIG. 7 or FIG. 10 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图20为本申请实施例提供的另一种AMF的结构示意图。该AMF包括收发器2001、处理器2002和存储器2003,收发器2001用于与SMF或者终端进行通信;所述存储器2003用于存放程序;所述处理器2002用于执行所述存储器存储的所述程序,以执行前述图7或图10中AMF执行的步骤。所述SMF存在接入LADN的PDU会话,具体地:FIG. 20 is a schematic structural diagram of another AMF according to an embodiment of the present disclosure. The AMF includes a transceiver 2001 for communicating with an SMF or a terminal, and a memory 2003 for storing a program; the processor 2002 for performing the memory storage a program to perform the steps performed by the AMF in the aforementioned FIG. 7 or FIG. The SMF has a PDU session accessing the LADN, specifically:
处理器2002,用于接收所述SMF订阅通知服务,所述通知服务用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化。The processor 2002 is configured to receive the SMF subscription notification service, where the notification service is used to notify the SMF when a preset event occurs, where the preset event is a change in an available state of the LADN.
可选地,处理器2002还用于,Optionally, the processor 2002 is further configured to:
接收所述SMF发送所述LADN的数据网络名称DNN和所述预设事件,以接受所述
SMF订阅所述通知服务。Receiving, by the SMF, the data network name DNN of the LADN and the preset event to accept the
The SMF subscribes to the notification service.
可选地,所述LADN的可用状态发生变化,包括下述至少一种:Optionally, the available state of the LADN changes, including at least one of the following:
第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息;The information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;
第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;Information in the first registration area is changed from information including the LADN to information not including the LADN;
第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;The first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area;
第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;Information that does not include the LADN in the first registration area is changed to information including the LADN;
其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入到所述第一注册区域之前的注册区域。The first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
可选地,还包括:Optionally, it also includes:
收发器2001,用于向所述SMF发送通知信息,所述通知信息用于通知所述终端的注册区域包括或者不包括所述LADN的信息。The transceiver 2001 is configured to send, to the SMF, notification information, where the notification information is used to notify the registration area of the terminal that the information of the LADN is included or not included.
所述AMF可作为如图7或图10所述的服务订阅的方法的AMF,并执行图7或图10中SMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The AMF can be used as the AMF of the method of service subscription as described in FIG. 7 or FIG. 10, and the steps performed by the SMF in FIG. 7 or FIG. 10 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图21本申请实施例提供的另一种SMF的结构示意图。如图21所示,该SMF包括收发器2101、处理器2102和存储器2103,收发器2101用于与AMF、UPF或者终端进行通信;所述存储器2103用于存放程序;所述处理器2102用于执行所述存储器存储的所述程序,以执行前述图9中SMF执行的步骤。所述SMF存在接入LADN的PDU会话,所述SMF包括:FIG. 21 is a schematic structural diagram of another SMF provided by an embodiment of the present application. As shown in FIG. 21, the SMF includes a transceiver 2101 for communicating with an AMF, a UPF or a terminal, and a memory 2103 for storing a program; the processor 2102 is for storing a program; The program stored in the memory is executed to perform the steps performed by the SMF in Fig. 9 described above. The SMF has a PDU session accessing the LADN, and the SMF includes:
收发器2101,用于接收用户面功能实体UPF发送的所述PDU会话对应的下行数据通知;The transceiver 2101 is configured to receive a downlink data notification corresponding to the PDU session sent by the user plane function entity UPF.
收发器2101,用于调用接入与移动管理实体AMF提供的第一服务,所述第一服务用于所述SMF通过所述AMF向接入节点AN发送消息。;The transceiver 2101 is configured to invoke a first service provided by the access and mobility management entity AMF, where the first service is used by the SMF to send a message to the access node AN through the AMF. ;
收发器2101,接收AMF发送的指示参数,所述指示参数用于指示当前注册区域内不包括所述LADN的信息;The transceiver 2101 receives an indication parameter sent by the AMF, where the indication parameter is used to indicate that the LADN information is not included in the current registration area.
处理器2102,用于根据所述指示参数修改所述PDU会话。The processor 2102 is configured to modify the PDU session according to the indication parameter.
可选地,处理器2102还用于,通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN。Optionally, the processor 2102 is further configured to notify the user plane function entity UPF to discard the downlink data corresponding to the PDU session, and notify the UPF to stop sending the downlink data notification DDN corresponding to the PDU session to the SMF.
所述SMF可作为如图9所述的会话管理方法的SMF,并执行图9中SMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The SMF can be used as the SMF of the session management method as described in FIG. 9, and the steps performed by the SMF in FIG. 9 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
图22为本申请实施例提供的另一种AMF的结构示意图。如图22所示,该AMF包括收发器2201、处理器2202和存储器2203,收发器2201用于与SMF或者终端进行通信;所述存储器2203用于存放程序;所述处理器2202用于执行所述存储器存储的所述程序,以执行前述图9中SMF执行的步骤。所述SMF存在接入LADN的PDU会话,所述AMF包括:FIG. 22 is a schematic structural diagram of another AMF according to an embodiment of the present disclosure. As shown in FIG. 22, the AMF includes a transceiver 2201, a processor 2202, and a memory 2203. The transceiver 2201 is configured to communicate with an SMF or a terminal; the memory 2203 is configured to store a program; and the processor 2202 is configured to execute The program stored in the memory is executed to perform the steps of the SMF execution described above in FIG. The SMF has a PDU session accessing the LADN, and the AMF includes:
收发器2201,用于接收所述SMF调用的第一服务,所述第一服务用于所述SMF通过
所述AMF向接入节点AN发送消息;a transceiver 2201, configured to receive a first service invoked by the SMF, where the first service is used by the SMF
The AMF sends a message to the access node AN;
收发器2201,用于当所述终端的注册区域内不包括LADN的服务区域时,向SMF发送指示参数,所述指示参数用于指示注册区域内不包括所述LADN的信息。The transceiver 2201 is configured to send an indication parameter to the SMF when the service area of the LADN is not included in the registration area of the terminal, where the indication parameter is used to indicate that the LADN information is not included in the registration area.
可选地,还包括,处理器2202,用于保存向所述SMF发送过所述指示参数的信息。Optionally, the method further includes a processor 2202, configured to save information that is sent to the SMF by the indication parameter.
所述AMF可作为如图9所述的会话管理方法的AMF,并执行图9中AMF所执行的步骤。从而减少了由于终端处于空闲态时,网络修改或释放PDU会话造成的数据丢失,也减少了网络设备因为该接入LADN的PDU会话有下行数据到达而寻呼终端造成的信令浪费。The AMF can be used as the AMF of the session management method as described in FIG. 9, and the steps performed by the AMF in FIG. 9 are performed. Therefore, the data loss caused by the network modification or release of the PDU session when the terminal is in the idle state is reduced, and the signaling waste caused by the paging terminal caused by the downlink data arrival of the network device accessing the LADN PDU session is also reduced.
本申请实施例提供了一种包含指令的计算机程序产品,当所述指令在计算机上运行时,执行上述图3至图10中的方法/步骤。Embodiments of the present application provide a computer program product comprising instructions that, when executed on a computer, perform the methods/steps of Figures 3 through 10 above.
本申请实施例提供了一种计算机可读存储介质,用于存储指令,当所述指令在计算机上执行时,执行上述图3至图10中的方法/步骤。The embodiment of the present application provides a computer readable storage medium for storing instructions, when the instructions are executed on a computer, performing the methods/steps in FIG. 3 to FIG. 10 above.
本申请实施例提供了一种通信系统。该系统包括上述结合图3至图10所描述的实施例中的任意一种或多种设备。The embodiment of the present application provides a communication system. The system includes any one or more of the above-described embodiments described in connection with Figures 3-10.
在上述各个本发明实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读介质向另一个计算机可读介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如,固态硬盘)等。In each of the above embodiments of the present invention, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable medium to another computer readable medium, for example, the computer instructions can be wired from a website site, computer, server or data center (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center. The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state hard disk) or the like.
以上所述,仅为本申请较佳的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应该以权利要求的保护范围为准。
The above description is only a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed in the present application. Replacement should be covered by the scope of this application. Therefore, the scope of protection of the present application should be determined by the scope of protection of the claims.
Claims (65)
- 一种会话管理的方法,其特征在于,终端存在接入本地区域数据网络LADN的协议数据单元PDU会话,包括:A method for session management, characterized in that the terminal has a protocol data unit PDU session accessing the local area data network LADN, including:所述终端在第一注册区域RA内接收接入与移动管理功能实体AMF发送的第一消息,所述第一消息包括或者不包括所述LADN的信息;其中,所述第一RA为所述终端的当前注册区域;Receiving, by the terminal, the first message sent by the access and mobility management function entity AMF in the first registration area RA, where the first message includes or does not include information of the LADN; wherein the first RA is the The current registration area of the terminal;所述终端根据第一消息确定所述LADN的可用状态发生变化;Determining, by the terminal, that the available state of the LADN changes according to the first message;所述终端修改或者释放所述PDU会话。The terminal modifies or releases the PDU session.
- 根据权利要求1所述的方法,其特征在于,所述终端根据第一消息确定所述LADN的可用状态发生变化,包括:The method according to claim 1, wherein the terminal determines, according to the first message, that the available state of the LADN changes, including:当所述第一消息不包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内包括所述LADN的信息时,所述终端确定所述LADN的可用状态发生变化;或者,When the first message does not include the information of the LADN, and the information of the LADN is included in the first RA before the terminal receives the first message, the terminal determines an available state of the LADN. Changed; or,当所述第一消息不包括所述LADN的信息、且第二RA内包括所述LADN的信息时,所述终端确定所述LADN的可用状态发生变化;When the first message does not include the information of the LADN, and the information of the LADN is included in the second RA, the terminal determines that the available state of the LADN changes;所述第二RA为所述终端进入所述第一RA之前的RA。The second RA is an RA before the terminal enters the first RA.
- 根据权利要求2所述的方法,其特征在于,所述终端修改所述PDU会话,包括:The method according to claim 2, wherein the modifying the PDU session by the terminal comprises:所述终端向会话管理功能实体SMF发送第一会话修改请求消息,所述第一会话修改请求消息包括第一指示,所述第一指示用于指示所述第一RA内不包括LADN的信息;或者,The terminal sends a first session modification request message to the session management function entity SMF, where the first session modification request message includes a first indication, where the first indication is used to indicate that the first RA does not include LADN information; or,所述终端释放所述PDU会话,包括:所述终端向SMF发送会话释放请求消息。The releasing the PDU session by the terminal includes: the terminal sending a session release request message to the SMF.
- 根据权利要求3所述的方法,其特征在于,所述方法还包括:The method of claim 3, wherein the method further comprises:所述终端接收所述SMF发送的第一会话修改命令消息,所述第一会话修改命令消息包括所述PDU会话的标识和第一参数,所述PDU会话的标识用于识别所述PDU会话,所述第一参数用于指示PDU会话不可用。Receiving, by the terminal, the first session modification command message sent by the SMF, where the first session modification command message includes an identifier of the PDU session and a first parameter, where the identifier of the PDU session is used to identify the PDU session. The first parameter is used to indicate that the PDU session is unavailable.
- 根据权利要求2-4任一项所述的方法,其特征在于,所述终端修改所述PDU会话包括:The method according to any one of claims 2-4, wherein the modifying the PDU session by the terminal comprises:所述终端将所述PDU会话标记为不可用。The terminal marks the PDU session as unavailable.
- 根据权利要求1所述的方法,其特征在于,The method of claim 1 wherein所述终端根据第一消息确定所述LADN的可用状态发生变化,包括:Determining, by the terminal, that the available state of the LADN changes according to the first message, including:当所述第一消息包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内不包括所述LADN的信息时,所述终端确定所述LADN的可用状态发生变化;或者,When the first message includes the information of the LADN, and the information of the LADN is not included in the first RA before the terminal receives the first message, the terminal determines an available state of the LADN. Changed; or,当所述第一消息包括所述LADN的信息、且第二RA内不包括所述LADN的信息时,所述终端确定所述LADN的可用状态发生变化;When the first message includes the information of the LADN, and the information of the LADN is not included in the second RA, the terminal determines that the available state of the LADN changes;所述第二RA为所述终端进入所述第一RA之前的RA。The second RA is an RA before the terminal enters the first RA.
- 根据权利要求6所述的方法,其特征在于,所述终端修改所述PDU会话,包括:The method according to claim 6, wherein the modifying the PDU session by the terminal comprises:所述终端向SMF发送第二会话修改请求消息,所述第二会话修改请求消息包括第二指示,所述第二指示用于指示所述第一RA内不包括LADN的信息。 The terminal sends a second session modification request message to the SMF, where the second session modification request message includes a second indication, where the second indication is used to indicate information that the LADN is not included in the first RA.
- 根据权利要求7所述的方法,其特征在于,所述方法还包括:The method of claim 7, wherein the method further comprises:所述终端接收所述SMF发送的第二会话修改命令消息,所述第二会话修改命令消息包括第二参数,所述第二参数用于指示PDU会话可用。The terminal receives a second session modification command message sent by the SMF, where the second session modification command message includes a second parameter, where the second parameter is used to indicate that the PDU session is available.
- 根据权利要求6-8任一项所述的方法,其特征在于,所述终端修改所述PDU会话包括:The method according to any one of claims 6-8, wherein the modifying the PDU session by the terminal comprises:所述终端将所述PDU会话标记为可用。The terminal marks the PDU session as available.
- 一种会话管理方法,其特征在于,会话管理功能实体SMF存在接入本地区域数据网络LADN的协议数据单元PDU会话,所述方法包括:A session management method, characterized in that the session management function entity SMF has a protocol data unit PDU session accessing the local area data network LADN, the method comprising:会话管理功能实体SMF接收终端发送的会话修改请求消息,所述会话修改请求消息包括指示,所述指示用于指示注册区域RA包括或者不包括LADN的信息;The session management function entity SMF receives a session modification request message sent by the terminal, where the session modification request message includes an indication, where the indication is used to indicate that the registration area RA includes or does not include information of the LADN;所述SMF根据所述指示修改所述PDU会话。The SMF modifies the PDU session according to the indication.
- 根据权利要求10所述的方法,其特征在于,当所述指示用于指示所述RA不包括LADN的信息时,所述SMF根据所述指示修改所述PDU会话,包括:The method according to claim 10, wherein, when the indication is used to indicate that the RA does not include information of a LADN, the SMF modifying the PDU session according to the indication, including:所述SMF向所述终端发送第一会话修改命令消息,所述第一会话修改命令消息包括所述PDU会话的标识和第一参数,所述第一参数用于指示PDU会话不可用。The SMF sends a first session modification command message to the terminal, where the first session modification command message includes an identifier of the PDU session and a first parameter, where the first parameter is used to indicate that the PDU session is unavailable.
- 根据权利要求11所述的方法,其特征在于,所述SMF根据所述指示修改所述PDU会话,包括下述一项或多项:The method according to claim 11, wherein the SMF modifies the PDU session according to the indication, including one or more of the following:所述SMF将所述PDU会话标记为不可用;The SMF marks the PDU session as unavailable;所述SMF通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;或者,The SMF notifies the user plane function entity UPF to discard the downlink data corresponding to the PDU session; or所述SMF通知所述UPF停止向所述SMF发送下行数据通知DDN。The SMF notifies the UPF to stop sending a downlink data notification DDN to the SMF.
- 根据权利要求10所述的方法,其特征在于,当所述指示用于指示所述RA不包括LADN的信息时,所述SMF根据所述指示修改所述PDU会话,包括:The method according to claim 10, wherein, when the indication is used to indicate that the RA does not include information of a LADN, the SMF modifying the PDU session according to the indication, including:所述SMF向所述终端发送第二会话修改命令消息,所述第二会话修改命令消息包括所述PDU会话的标识和第二参数,所述PDU会话的标识用于识别所述PDU会话,所述第二参数用于指示PDU会话可用。The SMF sends a second session modification command message to the terminal, where the second session modification command message includes an identifier of the PDU session and a second parameter, where the identifier of the PDU session is used to identify the PDU session. The second parameter is used to indicate that the PDU session is available.
- 根据权利要求13所述的方法,其特征在于,所述SMF根据所述指示修改所述PDU会话,包括下述一项或多项:The method according to claim 13, wherein the SMF modifies the PDU session according to the indication, including one or more of the following:所述SMF将所述PDU会话标记为可用;The SMF marks the PDU session as available;所述SMF通知UPF发送所述PDU会话对应的下行数据;或者,The SMF notifies the UPF to send downlink data corresponding to the PDU session; or所述SMF通知所述UPF发送所述PDU会话对应的下行数据通知DDN。The SMF notifies the UPF to send a downlink data notification DDN corresponding to the PDU session.
- 一种服务订阅的方法,其特征在于,会话管理功能实体SMF存在终端终端接入本地区域数据网络LADN的协议数据单元PDU会话,所述方法包括:A method for service subscription, characterized in that the session management function entity SMF has a protocol data unit PDU session in which the terminal terminal accesses the local area data network LADN, and the method includes:所述SMF向接入与移动管理功能实体AMF订阅通知服务,所述通知服务用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化。The SMF subscribes to the access and mobility management function entity AMF, and the notification service is used to notify the SMF when the preset event occurs, wherein the preset event is an available state of the LADN. Variety.
- 根据权利要求15所述的方法,所述SMF向所述AMF订阅所述通知服务,包括:The method according to claim 15, wherein the SMF subscribes to the notification service to the AMF, including:所述SMF向所述AMF发送所述LADN的数据网络名称DNN和所述预设事件。 The SMF sends the data network name DNN of the LADN and the preset event to the AMF.
- 根据权利要求15或16所述的方法,所述LADN的可用状态发生变化,包括下述至少一种:The method according to claim 15 or 16, wherein the available state of the LADN changes, including at least one of the following:第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息;The information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;Information in the first registration area is changed from information including the LADN to information not including the LADN;第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;或者,The first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area; or第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;Information that does not include the LADN in the first registration area is changed to information including the LADN;其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入所述第一注册区域之前的注册区域。The first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
- 根据权利要求15-17任意一项所述的方法,其特征在于,在所述SMF向所述AMF订阅所述通知服务之后,还包括:The method according to any one of claims 15-17, further comprising: after the SMF subscribes to the notification service to the AMF, the method further comprises:所述SMF接收所述AMF发送的通知信息,所述通知信息用于通知所述终端的当前注册区域内包括或者不包括所述LADN的信息。The SMF receives the notification information sent by the AMF, where the notification information is used to notify information about the LADN in the current registration area of the terminal.
- 根据权利要求18所述的方法,其特征在于,在所述SMF接收所述通知信息之后,还包括:The method of claim 18, after the receiving, by the SMF, the notification information, further comprising:所述SMF根据所述通知信息修改所述PDU会话。The SMF modifies the PDU session according to the notification information.
- 根据权利要求19所述的方法,其特征在于,所述SMF根据所述通知信息修改所述PDU会话,包括:The method according to claim 19, wherein the modifying, by the SMF, the PDU session according to the notification information comprises:当所述通知信息用于通知所述终端的当前注册区域不包括所述LADN的信息时,所述SMF执行下述一项或多项:When the notification information is used to notify that the current registration area of the terminal does not include the information of the LADN, the SMF performs one or more of the following:通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;Notifying the user plane function entity UPF to discard the downlink data corresponding to the PDU session;通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN;Notifying the UPF to stop sending the downlink data notification DDN corresponding to the PDU session to the SMF;
- 根据权利要求19所述的方法,其特征在于,所述SMF根据所述通知信息修改所述PDU会话,包括:The method according to claim 19, wherein the modifying, by the SMF, the PDU session according to the notification information comprises:当所述通知信息用于通知所述终端的当前注册区域包括所述LADN的信息时,所述SMF执行下述一项或多项:When the notification information is used to notify the terminal that the current registration area includes the information of the LADN, the SMF performs one or more of the following:通知所述UPF发送所述PDU会话对应的下行数据;Notifying the UPF to send downlink data corresponding to the PDU session;通知所述UPF发送所述PDU会话对应的下行数据通知DDN。Notifying the UPF to send a downlink data notification DDN corresponding to the PDU session.
- 一种服务订阅的方法,其特征在于,接入与移动管理功能实体AMF存在终端接入本地区域数据网络LADN的协议数据单元PDU会话,所述方法包括:A method for service subscription, characterized in that the access and mobility management function entity AMF has a protocol data unit PDU session in which the terminal accesses the local area data network LADN, and the method includes:所述AMF接收所述SMF发送的订阅通知服务请求,所述通知服务请求用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化。Receiving, by the AMF, a subscription notification service request sent by the SMF, where the notification service request is used to notify the SMF when a preset event occurs, where the preset event is a change of an available state of the LADN .
- 根据权利要求22所述的方法,其特征在于,所述AMF接收所述SMF发送的订阅通知服务请求,包括:The method according to claim 22, wherein the AMF receives the subscription notification service request sent by the SMF, including:所述AMF接收所述SMF发送的所述LADN的数据网络名称DNN和所述预设事件。The AMF receives the data network name DNN of the LADN sent by the SMF and the preset event.
- 根据权利要求22或23所述的方法,所述LADN的可用状态发生变化,包括下述至少一种:The method according to claim 22 or 23, wherein the available state of the LADN changes, including at least one of the following:第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息; The information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;Information in the first registration area is changed from information including the LADN to information not including the LADN;第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;The first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area;第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;Information that does not include the LADN in the first registration area is changed to information including the LADN;其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入到所述第一注册区域之前的注册区域。The first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
- 根据权利要求22-24任意一项所述的方法,其特征在于,在所述AMF接收所述SMF发送的订阅通知服务请求之后,还包括:The method according to any one of claims 22-24, wherein after the AMF receives the subscription notification service request sent by the SMF, the method further includes:所述AMF向所述SMF发送通知信息,所述通知信息用于通知所述终端的当前注册区域包括或者不包括所述LADN的信息。The AMF sends notification information to the SMF, where the notification information is used to notify that the current registration area of the terminal includes or does not include information of the LADN.
- 一种会话管理方法,其特征在于,会话管理功能实体SMF存在接入本地区域数据网络LADN的协议数据单元PDU会话,所述方法包括:A session management method, characterized in that the session management function entity SMF has a protocol data unit PDU session accessing the local area data network LADN, the method comprising:所述SMF接收用户面功能实体UPF发送的所述PDU会话对应的下行数据通知;Receiving, by the SMF, a downlink data notification corresponding to the PDU session sent by the user plane function entity UPF;所述SMF调用接入与移动管理实体AMF提供的第一服务,所述第一服务用于所述SMF通过所述AMF向接入节点AN发送消息;The SMF invokes a first service provided by the mobile management entity AMF, where the first service is used by the SMF to send a message to the access node AN through the AMF;所述SMF接收AMF发送的指示参数,所述指示参数用于指示当前注册区域内不包括所述LADN的信息;The SMF receives an indication parameter sent by the AMF, where the indication parameter is used to indicate that the LADN information is not included in the current registration area;所述SMF根据所述指示参数修改所述PDU会话。The SMF modifies the PDU session according to the indication parameter.
- 根据权利要求26所述的方法,其特征在于,所述SMF根据所述指示参数修改所述PDU会话,包括所述SMF执行下述一项或多项:The method according to claim 26, wherein the SMF modifies the PDU session according to the indication parameter, including the SMF performing one or more of the following:通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;Notifying the user plane function entity UPF to discard the downlink data corresponding to the PDU session;通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN。The UPF is notified to stop sending the downlink data notification DDN corresponding to the PDU session to the SMF.
- 一种会话管理方法,其特征在于,接入与移动管理实体AMF存在接入本地区域数据网络LADN的协议数据单元PDU会话,所述方法包括:A session management method, characterized in that the access and mobility management entity AMF has a protocol data unit PDU session accessing the local area data network LADN, the method comprising:AMF接收会话管理功能实体SMF调用的第一服务请求,所述第一服务请求用于所述SMF请求所述AMF向接入节点AN发送消息;其中,所述第一服务请求中包括所述PDU会话的标识;The AMF receives a first service request invoked by the session management function entity SMF, the first service request is used by the SMF to request the AMF to send a message to the access node AN, where the first service request includes the PDU The identity of the session;当终端的注册区域内不包括LADN的服务区域时,所述AMF向SMF发送指示参数,所述指示参数用于指示所述终端的注册区域内不包括所述LADN的信息。When the service area of the LADN is not included in the registration area of the terminal, the AMF sends an indication parameter to the SMF, where the indication parameter is used to indicate that the LADN information is not included in the registration area of the terminal.
- 根据权利要求28所述的方法,其特征在于,所述AMF向SMF发送指示参数后,还包括:The method according to claim 28, wherein after the AMF sends the indication parameter to the SMF, the method further includes:所述AMF保存已向所述SMF发送所述指示参数的信息。The AMF saves information that the indication parameter has been sent to the SMF.
- 一种终端,其特征在于,所述终端存在接入本地区域数据网络LADN的协议数据单元PDU会话,所述终端包括:A terminal, wherein the terminal has a protocol data unit PDU session accessing a local area data network LADN, and the terminal includes:接收单元,在第一注册区域RA内接收接入与移动管理功能实体AMF发送的第一消息,所述第一消息包括或者不包括所述LADN的信息;其中,所述第一RA为所述终端的当前注册区域; Receiving, in the first registration area RA, the first message sent by the access and mobility management function entity AMF, where the first message includes or does not include information of the LADN; wherein the first RA is the The current registration area of the terminal;确定单元,用于根据第一消息确定所述LADN的可用状态发生变化;a determining unit, configured to determine, according to the first message, that an available state of the LADN changes;修改单元,用于修改所述PDU会话;或者,释放单元,用于释放所述PDU会话。a modifying unit, configured to modify the PDU session; or a releasing unit, configured to release the PDU session.
- 根据权利要求30所述的终端,其特征在于,所述确定单元还用于,The terminal according to claim 30, wherein the determining unit is further configured to:当所述第一消息不包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内包括所述LADN的信息时,确定所述LADN的可用状态发生变化;或者,Determining that the available state of the LADN changes when the first message does not include the information of the LADN and the information of the LADN is included in the first RA before the terminal receives the first message; or,当所述第一消息不包括所述LADN的信息、且第二RA内包括所述LADN的信息时,确定所述LADN的可用状态发生变化;所述第二RA为所述终端进入所述第一RA之前的RA。Determining that the available state of the LADN changes when the first message does not include the information of the LADN and the information of the LADN is included in the second RA; the second RA is the terminal entering the first RA before a RA.
- 根据权利要求31所述的终端,其特征在于,还包括:所述发送单元,用于向会话管理功能实体SMF发送第一会话修改请求消息,所述第一会话修改请求消息包括第一指示,所述第一指示用于指示所述第一RA内不包括所述LADN的信息;或者,向SMF发送会话释放请求消息。The terminal according to claim 31, further comprising: the sending unit, configured to send a first session modification request message to the session management function entity SMF, where the first session modification request message includes a first indication, The first indication is used to indicate information that the LADN is not included in the first RA; or, a session release request message is sent to the SMF.
- 根据权利要求32所述的终端,其特征在于,所述接收单元还用于,接收所述SMF发送的第一会话修改命令消息,所述第一会话修改命令消息包括所述PDU会话的标识和第一参数,所述PDU会话的标识用于识别所述PDU会话,所述第一参数用于指示PDU会话不可用。The terminal according to claim 32, wherein the receiving unit is further configured to receive a first session modification command message sent by the SMF, where the first session modification command message includes an identifier of the PDU session and The first parameter, the identifier of the PDU session is used to identify the PDU session, and the first parameter is used to indicate that the PDU session is unavailable.
- 根据权利要求31-33任一项所述的终端,其特征在于,所述修改单元还用于,所述终端将所述PDU会话标记为不可用。The terminal according to any one of claims 31 to 33, wherein the modifying unit is further configured to: the terminal marks the PDU session as unavailable.
- 根据权利要求30所述的终端,其特征在于,所述确定单元还用于,当所述第一消息包括所述LADN的信息、且在所述终端接收所述第一消息之前所述第一RA内不包括所述LADN的信息时,确定所述LADN的可用状态发生变化;或者,The terminal according to claim 30, wherein the determining unit is further configured to: when the first message includes information of the LADN, and before the terminal receives the first message, the first When the information of the LADN is not included in the RA, it is determined that the available state of the LADN changes; or当所述第一消息包括所述LADN的信息、且第二RA内不包括所述LADN的信息时,确定所述LADN的可用状态发生变化;所述第二RA为所述终端进入所述第一RA之前的RA。Determining that an available state of the LADN changes when the first message includes information of the LADN and information that does not include the LADN in the second RA; the second RA is that the terminal enters the first RA before a RA.
- 根据权利要求35所述的终端,其特征在于,所述发送单元还用于,向SMF发送第二会话修改请求消息,所述第二会话修改请求消息包括第二指示,所述第二指示用于指示第一RA内包括所述LADN的信息。The terminal according to claim 35, wherein the sending unit is further configured to send a second session modification request message to the SMF, where the second session modification request message includes a second indication, where the second indication is Information indicating the LADN is included in the first RA.
- 根据权利要求36所述的终端,其特征在于,所述接收单元还用于,The terminal according to claim 36, wherein said receiving unit is further configured to:接收所述SMF发送的第二会话修改命令消息,所述第二会话修改命令消息包括第二参数,所述第二参数用于指示PDU会话可用。Receiving a second session modification command message sent by the SMF, where the second session modification command message includes a second parameter, where the second parameter is used to indicate that the PDU session is available.
- 根据权利要求35-37任一项所述的终端,其特征在于,所述修改单元还用于,将所述PDU会话标记为可用。The terminal according to any one of claims 35 to 37, wherein the modifying unit is further configured to mark the PDU session as available.
- 一种会话管理功能实体SMF,其特征在于,所述SMF存在接入本地区域数据网络LADN的协议数据单元PDU会话,所述SMF包括:A session management function entity SMF, wherein the SMF has a protocol data unit PDU session accessing a local area data network LADN, and the SMF includes:接收单元,用于接收终端发送的会话修改请求消息,所述会话修改请求消息包括指示,所述指示用于指示注册区域RA包括或者不包括所述LADN的信息;a receiving unit, configured to receive a session modification request message sent by the terminal, where the session modification request message includes an indication, where the indication is used to indicate that the registration area RA includes or does not include information of the LADN;修改单元,用于根据所述指示修改所述PDU会话。And a modifying unit, configured to modify the PDU session according to the indication.
- 根据权利要求39所述的SMF,其特征在于,还包括:发送单元,用于当所述指 示用于指示所述RA不包括所述LADN的信息时,The SMF according to claim 39, further comprising: a transmitting unit for when said finger When indicating that the RA does not include the information of the LADN,向所述终端发送第一会话修改命令消息,所述第一会话修改命令消息包括所述PDU会话的标识和第一参数,所述第一参数用于指示PDU会话不可用。Sending a first session modification command message to the terminal, where the first session modification command message includes an identifier of the PDU session and a first parameter, where the first parameter is used to indicate that the PDU session is unavailable.
- 根据权利要求40所述的SMF,其特征在于,所述修改单元还用于,The SMF according to claim 40, wherein said modifying unit is further configured to:将所述PDU会话标记为不可用;Marking the PDU session as unavailable;通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;或者,Notifying the user plane function entity UPF to discard the downlink data corresponding to the PDU session; or通知所述UPF停止向所述SMF发送下行数据通知DDN。Notifying the UPF to stop sending a downlink data notification DDN to the SMF.
- 根据权利要求39所述的SMF,其特征在于,还包括:发送单元用于,当所述指示用于是指示所述终端的RA不包括LADN的信息时,The SMF according to claim 39, further comprising: a transmitting unit, configured to: when the indication is used to indicate that the RA of the terminal does not include information of the LADN,向所述终端发送第二会话修改命令消息,所述第二会话修改命令消息包括所述PDU会话的标识和第二参数,所述第二参数用于指示所述PDU会话可用。And sending, by the terminal, a second session modification command message, where the second session modification command message includes an identifier of the PDU session and a second parameter, where the second parameter is used to indicate that the PDU session is available.
- 根据权利要求42所述的SMF,其特征在于,修改单元还用于,The SMF according to claim 42, wherein the modifying unit is further configured to:将所述PDU会话标记为可用;Marking the PDU session as available;通知UPF发送所述PDU会话对应的下行数据;或者,Notifying the UPF to send downlink data corresponding to the PDU session; or通知所述UPF发送所述PDU会话对应的下行数据通知DDN。Notifying the UPF to send a downlink data notification DDN corresponding to the PDU session.
- 一种会话管理功能实体SMF,其特征在于,所述SMF存在终端接入本地区域数据网络LADN的协议数据单元PDU会话,所述SMF包括:A session management function entity SMF, wherein the SMF has a protocol data unit PDU session in which the terminal accesses the local area data network LADN, and the SMF includes:订阅单元,用于向接入与移动管理功能实体AMF订阅通知服务,所述通知服务用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化。a subscription unit, configured to subscribe to a notification service to the access and mobility management function entity AMF, the notification service is configured to notify the SMF when the preset event occurs, wherein the preset event is available for the LADN The status changes.
- 根据权利要求44所述的SMF,所述订阅单元还用于,The SMF according to claim 44, wherein said subscribing unit is further configured to:向所述AMF发送所述LADN的数据网络名称DNN和所述预设事件。Sending the data network name DNN of the LADN and the preset event to the AMF.
- 根据权利要求44或45所述的SMF,所述LADN的可用状态发生变化,包括下述至少一种:The SMF of claim 44 or 45, wherein the available state of the LADN changes, including at least one of the following:第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息;The information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;Information in the first registration area is changed from information including the LADN to information not including the LADN;第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;或者,The first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area; or第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;Information that does not include the LADN in the first registration area is changed to information including the LADN;其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入所述第一注册区域之前的注册区域。The first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
- 根据权利要求44-46任意一项所述的SMF,其特征在于,还包括:The SMF of any of claims 44-46, further comprising:接收单元,用于接收所述AMF发送的通知信息,所述通知信息用于通知所述终端的当前注册区域内包括或者不包括所述LADN的信息。And a receiving unit, configured to receive the notification information sent by the AMF, where the notification information is used to notify information about the LADN in the current registration area of the terminal.
- 根据权利要求47所述的SMF,其特征在于,还包括:The SMF of claim 47, further comprising:修改单元,用于根据所述通知信息修改所述PDU会话。And a modifying unit, configured to modify the PDU session according to the notification information.
- 根据权利要求48所述的SMF,其特征在于,所述修改单元还用于,当所述通知信息用于通知所述终端的当前注册区域不包括所述LADN的信息时,执行下述一项或多 项:通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN。The SMF according to claim 48, wherein the modifying unit is further configured to: when the notification information is used to notify that the current registration area of the terminal does not include the information of the LADN, perform the following one Or more Item: notifying the user plane function entity UPF to discard the downlink data corresponding to the PDU session; notifying the UPF to stop sending the downlink data notification DDN corresponding to the PDU session to the SMF.
- 根据权利要求48所述的SMF,其特征在于,所述修改单元还用于,当所述通知信息用于通知所述终端的当前注册区域包括所述LADN的信息时,执行下述一项或多项:通知所述UPF发送所述PDU会话对应的下行数据;通知所述UPF发送所述PDU会话对应的下行数据通知DDN。The SMF according to claim 48, wherein the modifying unit is further configured to: when the notification information is used to notify that the current registration area of the terminal includes information of the LADN, perform the following or And sending the downlink data corresponding to the PDU session to the UPF; and informing the UPF to send the downlink data notification DDN corresponding to the PDU session.
- 一种接入与移动管理功能实体AMF,其特征在于,会话管理功能实体SMF存在终端接入本地区域数据网络LADN的协议数据单元PDU会话,所述方法包括:An access and mobility management function entity AMF, characterized in that the session management function entity SMF has a protocol data unit PDU session in which the terminal accesses the local area data network LADN, and the method includes:订阅单元,用于接收所述SMF发送的订阅通知服务请求消息,所述通知服务用于当预设事件发生时,所述AMF通知所述SMF,其中,所述预设事件为LADN的可用状态发生变化。a subscription unit, configured to receive a subscription notification service request message sent by the SMF, where the notification service is used to notify the SMF when a preset event occurs, where the preset event is an available state of the LADN A change has occurred.
- 根据权利要求51所述的AMF,其特征在于,所述订阅单元还用于,接收所述SMF发送的所述LADN的数据网络名称DNN和所述预设事件。The AMF according to claim 51, wherein the subscribing unit is further configured to receive a data network name DNN of the LADN and the preset event sent by the SMF.
- 根据权利要求51或52所述的AMF,所述LADN的可用状态发生变化,包括下述至少一种:The AMF of claim 51 or 52, wherein the available state of the LADN changes, including at least one of the following:第一注册区域内不包括所述LADN的信息,第二注册区域内包括所述LADN的信息;The information of the LADN is not included in the first registration area, and the information of the LADN is included in the second registration area;第一注册区域内从包括所述LADN的信息改变为不包括所述LADN的信息;Information in the first registration area is changed from information including the LADN to information not including the LADN;第一注册区域内包括所述LADN的信息,第二注册区域内不包括所述LADN的信息;The first registration area includes information of the LADN, and the information of the LADN is not included in the second registration area;第一注册区域内从不包括所述LADN的信息改变为包括所述LADN的信息;Information that does not include the LADN in the first registration area is changed to information including the LADN;其中,所述第一注册区域是所述终端的当前注册区域,所述第二注册区域是所述终端进入到所述第一注册区域之前的注册区域。The first registration area is a current registration area of the terminal, and the second registration area is a registration area before the terminal enters the first registration area.
- 根据权利要求52-53任意一项所述的AMF,其特征在于,还包括:The AMF according to any one of claims 52-53, further comprising:发送单元,用于向所述SMF发送通知信息,所述通知信息用于通知所述终端的注册区域包括或者不包括所述LADN的信息。And a sending unit, configured to send, to the SMF, notification information, where the notification information is used to notify that the registration area of the terminal includes or does not include information of the LADN.
- 一种会话管理功能实体SMF,其特征在于,所述SMF存在接入本地区域数据网络LADN的协议数据单元PDU会话,所述SMF包括:A session management function entity SMF, wherein the SMF has a protocol data unit PDU session accessing a local area data network LADN, and the SMF includes:接收单元,用于接收用户面功能实体UPF发送的所述PDU会话对应的下行数据通知;a receiving unit, configured to receive a downlink data notification corresponding to the PDU session sent by the user plane function entity UPF;发送单元,用于调用接入与移动管理实体AMF提供的第一服务,所述第一服务用于所述SMF通过所述AMF向接入节点AN发送消息;a sending unit, configured to invoke a first service provided by the access and mobility management entity AMF, where the first service is used by the SMF to send a message to the access node AN by using the AMF;所述接收单元还用于,接收AMF发送的指示参数,所述指示参数用于指示当前注册区域内不包括所述LADN的信息;The receiving unit is further configured to receive an indication parameter sent by the AMF, where the indication parameter is used to indicate that the LADN information is not included in the current registration area;修改单元,用于根据所述指示参数修改所述PDU会话。And a modifying unit, configured to modify the PDU session according to the indication parameter.
- 根据权利要求55所述的SMF,其特征在于,所述修改单元还用于,The SMF according to claim 55, wherein said modifying unit is further configured to:通知用户面功能实体UPF丢弃所述PDU会话对应的下行数据;Notifying the user plane function entity UPF to discard the downlink data corresponding to the PDU session;通知UPF停止向所述SMF发送所述PDU会话对应的下行数据通知DDN。The UPF is notified to stop sending the downlink data notification DDN corresponding to the PDU session to the SMF.
- 一种接入与移动管理功能实体AMF,其特征在于,AMF存在接入本地区域数据 网络LADN的协议数据单元PDU会话,所述AMF包括:An access and mobility management function entity AMF, characterized in that AMF has access to local area data Protocol Data Unit PDU session of the network LADN, the AMF including:接收单元,用于接收会话管理功能实体SMF调用的第一服务,所述第一服务用于所述SMF通过所述AMF向接入节点AN发送消息;a receiving unit, configured to receive a first service invoked by a session management function entity SMF, where the first service is used by the SMF to send a message to the access node AN by using the AMF;发送单元,用于当终端的注册区域内不包括LADN的服务区域时,向SMF发送指示参数,所述指示参数用于指示注册区域内不包括所述LADN的信息。The sending unit is configured to send an indication parameter to the SMF when the service area of the LADN is not included in the registration area of the terminal, where the indication parameter is used to indicate that the LADN information is not included in the registration area.
- 根据权利要求57所述的AMF,其特征在于,还包括:The AMF of claim 57, further comprising:保存单元,用于保存已向所述SMF发送所述指示参数的信息。And a saving unit, configured to save information that the indication parameter has been sent to the SMF.
- 一种会话管理功能实体SMF,其特征在于,包括收发器、处理器和存储器,收发器用于与接入与移动管理功能实体AMF、用户面功能实体UPF或者终端进行通信;所述存储器用于存放程序;所述处理器用于执行所述存储器存储的所述程序,以执行权利要求10-21、26-27任一所述的方法。A session management function entity SMF, comprising: a transceiver, a processor and a memory, wherein the transceiver is configured to communicate with an access and mobility management function entity AMF, a user plane function entity UPF or a terminal; the memory is used for storing The program is operative to execute the program stored by the memory to perform the method of any of claims 10-21, 26-27.
- 一种接入与移动管理功能实体AMF,其特征在于,包括收发器、处理器和存储器,收发器用于与会话管理功能实体SMF或者终端进行通信;所述存储器用于存放程序;所述处理器用于执行所述存储器存储的所述程序,以执行权利要求22-25、28-29任一所述的方法。An access and mobility management function entity AMF, comprising: a transceiver, a processor and a memory, the transceiver for communicating with a session management function entity SMF or a terminal; the memory for storing a program; The program stored in the memory is executed to perform the method of any one of claims 22-25, 28-29.
- 一种终端,其特征在于,包括收发器、处理器和存储器,收发器用于与接入与移动管理功能实体AMF或者会话管理功能实体SMF进行通信;所述存储器用于存放程序;所述处理器用于执行所述存储器存储的所述程序,以执行权利要求1-9任一所述的方法。A terminal, comprising: a transceiver, a processor and a memory, wherein the transceiver is configured to communicate with an access and mobility management function entity AMF or a session management function entity SMF; the memory is configured to store a program; The program stored in the memory is executed to perform the method of any of claims 1-9.
- 一种计算机可读存储介质,包括计算机可读指令,当计算机读取并执行所述计算机可读指令时,使得计算机执行如权利要求1-29任意一项所述的方法。A computer readable storage medium comprising computer readable instructions which, when read and executed by a computer, cause a computer to perform the method of any of claims 1-29.
- 一种计算机程序产品,包括计算机可读指令,当计算机读取并执行所述计算机可读指令,使得计算机执行如权利要求1-29任意一项所述的方法。A computer program product comprising computer readable instructions which, when read and executed by a computer, cause a computer to perform the method of any of claims 1-29.
- 一种通信系统,其特征在于,包括:如权利要求30-38任意一项所述的终端和如权利要求39-43任意一项所述的会话管理功能实体SMF。A communication system, comprising: the terminal according to any one of claims 30-38 and the session management function entity SMF according to any one of claims 39-43.
- 一种通信系统,其特征在于,包括:如权利要求44-50任意一项所述的会话管理功能实体SMF和如权利要求51-54任意一项所述的接入与移动管理功能实体AMF;或者,如权利要求55或56所述的SMF和如权利要求57或58所述的AMF。 A communication system, comprising: a session management function entity SMF according to any one of claims 44-50; and an access and mobility management function entity AMF according to any one of claims 51-54; Alternatively, the SMF of claim 55 or 56 and the AMF of claim 57 or 58.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080032729A1 (en) * | 2005-04-07 | 2008-02-07 | Huawei Technologies Co., Ltd. | Method for managing communication resource assignment and resource assignment policy system |
CN106851856A (en) * | 2016-12-23 | 2017-06-13 | 电信科学技术研究院 | A kind of radio communication method for building up and the network equipment based on mobile relay |
CN107018542A (en) * | 2017-03-27 | 2017-08-04 | 中兴通讯股份有限公司 | The processing method of status information, device and storage medium in network system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8265065B2 (en) * | 2007-09-14 | 2012-09-11 | Sharp Laboratories Of America, Inc. | Method and system for voice-over-internet-protocol (VoIP) transmission in a wireless communications network |
CN101448294B (en) * | 2008-01-21 | 2011-05-04 | 华为技术有限公司 | Method for releasing and processing network resources and equipment thereof |
CN103249096B (en) * | 2013-05-31 | 2016-04-06 | 大唐移动通信设备有限公司 | A kind of switching handling method, equipment and system |
CN108353033A (en) * | 2015-11-30 | 2018-07-31 | 英特尔公司 | Mobile terminating grouping is sent |
-
2017
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080032729A1 (en) * | 2005-04-07 | 2008-02-07 | Huawei Technologies Co., Ltd. | Method for managing communication resource assignment and resource assignment policy system |
CN106851856A (en) * | 2016-12-23 | 2017-06-13 | 电信科学技术研究院 | A kind of radio communication method for building up and the network equipment based on mobile relay |
CN107018542A (en) * | 2017-03-27 | 2017-08-04 | 中兴通讯股份有限公司 | The processing method of status information, device and storage medium in network system |
Non-Patent Citations (1)
Title |
---|
QUALCOMM INCORPORATED ET AL.: "TS 23.502: PDU Sessions Handling for LADNs", SA WG2 MEETING #121 S2-173111, 19 May 2017 (2017-05-19), XP051268579 * |
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