WO2019057013A1

WO2019057013A1 - Method and device for content information management

Info

Publication number: WO2019057013A1
Application number: PCT/CN2018/106038
Authority: WO
Inventors: 朱强华; 熊春山
Original assignee: 华为技术有限公司
Priority date: 2017-09-20
Filing date: 2018-09-17
Publication date: 2019-03-28
Also published as: CN109525979A; CN109525979B

Abstract

A method and device for content information management. The method comprises: a data storage network element receives a first temporary subscriber identity request message transmitted by a first mobility management network element, the first temporary subscriber identity request message being used for requesting the assignment of a first temporary subscriber identity to a first terminal; the data storage network element transmits a first temporary subscriber identity request response message to the first mobility management network element, the first temporary subscriber identity request response message comprising the first temporary subscriber identity assigned to the first terminal by the data storage network element; and the data storage network element receives context information of the first terminal transmitted by the first mobility management network element, the context information of the first terminal comprising the first temporary subscriber identity.

Description

Context information management method and device

The present application claims the priority of the Chinese Patent Application, filed on Sep. 20, 2017, filed Jan. in.

Technical field

The present application relates to the field of communications technologies, and in particular, to a context information management method and apparatus.

Background technique

In the mobile communication system, before the terminal accesses the network, the network side establishes context information for the terminal, and the context information includes network capabilities such as the terminal, authentication information, negotiated security algorithms, created connection information, and the like. In a future 5G communication system, such as a New Radio (NR) system, the context information of the terminal may be stored in an Unstructured Data Storage Function (UDSF) network element. At the same time, the context information of each terminal includes a Temporary Mobile Subscriber Identity (TMSI) of the terminal, and the context information of the terminal can be indexed by the TMSI of the terminal.

The TMSI of the terminal is allocated by the Access and Mobility Management Function (AMF) network element. However, since the AMF network element does not determine whether the context information of the terminal is always valid (the network side may delete the context information of the terminal when the terminal is in the idle state), the AMF network element may allocate a TMSI to multiple terminals. The TMSI after the context information of multiple terminals is the same. If a TMSI indexes to at least one context information, the UDSF network element may overwrite previously stored context information of the TMSI index, thereby causing the terminal's context information to be overwritten or lost.

Therefore, how to assign a temporary user identifier to a terminal to prevent the context of the terminal from being overwritten or lost is an urgent problem to be solved.

Summary of the invention

The present application provides a context information management method and apparatus for solving the problem of how to avoid coverage or loss of context information of a terminal.

In a first aspect, the embodiment of the present application provides a context information management method, where the method includes:

The data storage network element receives the first temporary user identification request message sent by the first mobility management network element, where the first temporary user identification request message is used to request the data storage network element to allocate the first temporary user identifier to the first terminal. ;

The data storage network element sends a first temporary user identification request response message to the first mobility management network element, where the first temporary user identification request response message includes the data storage network element as the first terminal The first temporary user ID assigned;

The data storage network element receives the context information of the first terminal that is sent by the first mobility management network element, and the first temporary user identifier is included in the context information of the first terminal.

According to the above method, the data storage network element allocates a first temporary user identifier to the first terminal, and stores context information of the first terminal including the first temporary user identifier, and the data storage network element stores context information of the first terminal, Therefore, the data storage network element can determine whether the context information of the first terminal is valid, so that the first terminal can be assigned a unique first temporary user identifier, and when the context information of the first terminal is valid, the other terminal is no longer allocated and The first temporary user identifies the same temporary user identifier, so that when the first temporary user identifier of the first terminal is the same as the temporary user identifier of the other terminal, the problem that the context information of the first terminal is overwritten or lost is caused.

In an optional implementation manner, the first temporary user identifier includes first indication information, where the first indication information is used to indicate whether context information of the first terminal is stored in the data storage network element. .

The first indication information may be used to enable the other network element to quickly determine whether the context information of the first terminal is stored in the data storage network element. After the network side determines, according to the first indication information, the context information of the first terminal is stored in the data storage network element. When selecting the mobility management network element for the first terminal, it is not necessary to consider the state before the first terminal, and only needs to select an optimal mobility according to the current virtual resource usage of each mobile management network element, supported performance, and the like. The management network element serves the first terminal.

In an optional implementation manner, the method further includes:

The data storage network element receives a context information request message that is sent by the second mobility management network element and includes the first temporary user identifier of the first terminal, where the context information request message is used to request the context of the first terminal. Information; the second mobility management network element is a mobility management network element serving the first terminal;

The data storage network element sends the context information of the first terminal to the second mobility management network element.

Through the foregoing method, the data storage network element can transmit the context information of the first terminal to any mobility management network element serving the first terminal, so that the speed at which the first terminal accesses the network can be improved.

In an optional implementation manner, the context information request message is that the second mobility management network element determines, according to the first indication information, that context information of the first terminal is stored in the data storage network element. After sending it.

In a second aspect, an embodiment of the present application provides a context information management apparatus, where the apparatus includes a memory, a transceiver, and a processor, wherein: the memory is used to store an instruction; the processor is configured to control the transceiver according to the instruction to execute the memory storage. Signal reception and signal transmission are performed, and when the processor executes an instruction stored in the memory, the access network node is configured to perform the method in any of the possible aspects of the first aspect or the first aspect described above.

In a third aspect, the embodiment of the present application provides a context information management apparatus, which is used to implement any one of the foregoing first aspect or the first aspect, including a corresponding functional module, for example, including a processing unit, a receiving unit, and a sending unit. Etc., respectively, are used to implement the steps in the above method.

In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, where the computer storage medium stores computer readable instructions, and when the computer reads and executes the computer readable instructions, causes the computer to execute the first Aspect or method of any of the possible aspects of the first aspect.

In a fifth aspect, the embodiment of the present application provides a computer program product, when the computer reads and executes the computer program product, causing the computer to perform the method in any one of the foregoing first aspect or the first aspect.

In a sixth aspect, an embodiment of the present application provides a chip, where the chip is connected to a memory, for reading and executing a software program stored in the memory, to implement any of the foregoing first aspect or the first aspect. The method in the design.

In a seventh aspect, the embodiment of the present application provides a context information management method, where the method includes:

The first mobility management network element sends a first temporary user identification request message to the data storage network element, where the first temporary user identification request message is used to request the data storage network element to allocate a first temporary user identifier to the first terminal;

The first mobility management network element receives a first temporary user identification request response message sent by the data storage network element, where the first temporary user identification request response message includes the first temporary user identifier;

The first mobility management network element generates context information of the first terminal that includes the first temporary user identifier, and sends context information of the first terminal to the data storage network element.

The first mobility management network element requests the first temporary user identifier to be allocated to the first terminal by the data storage network element storing the context information of the first terminal, and the data storage network element stores the context information of the first terminal. Therefore, the data storage network element can determine whether the context information of the first terminal is valid, so that the first terminal can be assigned a unique first temporary user identifier, so the first mobility management network element can be the first temporary user identifier requested by the terminal. When the first temporary user identifier of the first terminal is the same as the temporary user identifier of the other terminal, the problem that the context information of the first terminal is overwritten or lost is caused.

In an optional implementation manner, before the first mobility management network element sends the context information of the first terminal to the data storage network element, the method further includes:

The first mobility management network element determines that the first terminal is in an idle state;

Alternatively, the first mobility management network element determines that the first terminal is no longer served.

When the first mobility management network element determines that the first terminal is in an idle state or is no longer serving the first terminal, the context information of the first terminal may be stored in the data storage network element, so that The interface between the access network element and the mobility management network element is made non-sticky.

In an optional implementation manner, the method further includes:

Receiving, by the first mobility management network element, a second temporary user identifier of the second terminal that is sent by the network element of the access network; the second temporary user identifier is that the second terminal is switched by the second mobility management network element Before the first mobility management network element, the data storage network element is allocated to the second terminal; the second temporary user identifier includes second indication information, and the second indication information is used to indicate Whether the context information of the second terminal is stored in the data storage network element;

If the first mobility management network element determines that the context information of the second terminal is stored in the data storage network element according to the second indication information, requesting, by the data storage network element, the second terminal Contextual information.

In an optional implementation manner, the method further includes:

If the first mobility management network element determines that the context information of the second terminal is not stored in the data storage network element according to the second indication information, requesting, by the second mobility management network element, the second mobility management network element The context information of the second terminal is described.

In an eighth aspect, an embodiment of the present application provides a context information management apparatus, where the apparatus includes a memory, a transceiver, and a processor, wherein: the memory is configured to store an instruction; the processor is configured to control the transceiver according to the instruction for executing the memory storage. Signal reception and signal transmission are performed, and when the processor executes the instruction stored in the memory, the terminal is configured to perform the method in any of the above seventh aspect or the seventh aspect.

The ninth aspect, the embodiment of the present application provides a context information management apparatus, where the apparatus is used to implement any one of the foregoing seventh or seventh aspects, including a corresponding functional module, for example, including a processing unit and a receiving unit. , a transmitting unit, and the like, respectively, are used to implement the steps in the above method.

In a tenth aspect, the embodiment of the present application provides a computer readable storage medium, where the computer readable medium stores computer readable instructions, and when the computer reads and executes the computer readable instructions, causes the computer to execute the seventh Aspect or method of any of the possible aspects of the seventh aspect.

In an eleventh aspect, the embodiment of the present application provides a computer program product, when the computer reads and executes the computer program product, causing the computer to perform the method in any one of the seventh aspect or the seventh aspect. .

According to a twelfth aspect, the embodiment of the present application provides a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory, to implement any one of the seventh aspect or the seventh aspect. Possible methods in design.

In a thirteenth aspect, the embodiment of the present application provides a context information management method, where the method includes:

The first terminal acquires the first temporary user identifier of the first terminal from the first mobility management network element; the first temporary user identifier includes first indication information and a system temporary identifier, where the first indication information is used Indicate whether the context information of the first terminal is stored in the data storage network element;

After the first terminal enters the connected state from the idle state, the first terminal determines, according to the first indication information, that the context information mapped with the first temporary user identifier is not stored in the data storage network element, And sending the system temporary identifier to the access network element.

When the first terminal determines that the context information mapped with the first temporary user identifier is not stored in the data storage network element according to the first indication information, the first terminal may send the system temporary identifier to the access network element, thereby enabling access. The network element determines the mobility management network element for the first terminal according to the temporary identifier of the system.

In a fourteenth aspect, the embodiment of the present application provides a context information management method, where the method includes:

The first mobility management network element receives the second temporary user identifier of the second terminal that is sent by the access network element; the second temporary user identifier is that the second terminal is switched by the second mobility management network element to the Before the first mobility management network element, the data storage network element is allocated to the second terminal; the second temporary user identifier includes second indication information, where the second indication information is used to indicate the Whether context information of the second terminal is stored in the data storage network element;

In an optional implementation manner, the method further includes:

According to a fifteenth aspect, the embodiment of the present application provides a context information management apparatus, where the apparatus includes a memory, a transceiver, and a processor, wherein: the memory is used to store an instruction; the processor is configured to control, according to an instruction for executing the memory, and control the sending and receiving. The machine performs signal reception and signal transmission. When the processor executes the instruction stored in the memory, the terminal is configured to perform the method in any of the above-mentioned thirteenth or fourteenth aspects.

In a sixteenth aspect, the embodiment of the present application provides a context information management apparatus, where the apparatus is used to implement any one of the thirteenth or fourteenth aspects, including a corresponding functional module, for example, including a processing unit. The receiving unit, the transmitting unit, and the like are respectively used to implement the steps in the above method.

In a seventeenth aspect, the embodiment of the present application provides a computer readable storage medium, where the computer storage medium stores computer readable instructions, and when the computer reads and executes the computer readable instructions, causes the computer to execute the foregoing A method of any of the thirteenth or fourteenth aspects of the possible design.

In an eighteenth aspect, the embodiment of the present application provides a computer program product, when the computer reads and executes the computer program product, causing the computer to perform any of the thirteenth aspects or the fourteenth aspect of the possible design. Methods.

According to a nineteenth aspect, an embodiment of the present application provides a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory to implement the thirteenth aspect or the fourteenth aspect. A possible approach in design.

DRAWINGS

1 is a schematic diagram of a system architecture applicable to an embodiment of the present application;

2 is a schematic flowchart of a context information management method according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a temporary user identification according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a temporary user identification according to an embodiment of the present application;

FIG. 5 is a schematic diagram of context information management according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a context information management apparatus according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a context information management apparatus according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a context information management apparatus according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a context information management apparatus according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a context information management apparatus according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a context information management apparatus according to an embodiment of the present disclosure.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram showing a system architecture applicable to the embodiment of the present application. As shown in FIG. 1 , in a future 5G system architecture, the terminal 101 can communicate with the core network via the access network element 102. A terminal may refer to a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user. Device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in future 5G networks, and the like. In FIG. 1 , for convenience of description, only one terminal is illustrated. In an actual network, multiple terminals may coexist, and details are not described herein again.

An access network (AN) network element 102, which may also be referred to as a radio access network (RAN) network element, is hereinafter referred to as an access network element or an AN network element. It is mainly responsible for providing a wireless connection to the terminal 101, ensuring reliable transmission of uplink and downlink data of the terminal 101, and the like. The access network element 102 can be a gNB (generation Node B) in a 5G system, and can be a Global System of Mobile communication (GSM) system or a base station in Code Division Multiple Access (CDMA). (Base Transceiver Station, BTS), which may also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or may be a Long Term Evolution (LTE) system. An evolved base station (Evolutional Node B, eNB or eNodeB), and the like.

a session management function (SMF) network element 103, which can be used to perform part of the functions of the Mobility Management Entity (MME) in the LTE system, and is mainly responsible for establishing a session, a management session, and the like for the terminal 101. . A suitable User Plane Function (UPF) network element can be selected for the terminal 101 according to the location information of the terminal 101.

The user plane function network element 104 is a functional network element of the user plane of the terminal 101. The main functions include packet routing and forwarding, and quality of service (QoS) processing of user plane data.

Access and Mobility Management Function (AMF) network element 105, whose main functions include the endpoint of the radio access network control plane, the endpoint of non-access signaling, mobility management, lawful interception, and access Authorization or authentication, etc.

The Policy Control Funnel (PCF) network element 106 is mainly responsible for the establishment, release, and modification of the user plane transmission path.

The Authentication Server Function (AUSF) network element 107, whose main functions include user authentication and the like.

User Data Management (UDM) network element 108 is mainly responsible for managing subscription data of users and the like.

The Data Network (DN) 109 may refer to a network that provides services for the terminal 101. For example, some DNs may provide the Internet access function for the terminal 101, and some DNs may provide the MMS function for the terminal 101.

The unstructured data storage function network element 110 is configured to store functions such as context information of the terminal.

Also shown in FIG. 1 is a possible implementation of an interface in each network element, such as an N2 interface between the access network element 102 and the AMF network element 109, between the access network element 102 and the UPF network element 104. N9 interface and so on, will not be repeated here.

As shown in FIG. 2, a schematic flowchart of a context information management method provided by an embodiment of the present application is shown. The data storage network element in the method shown in FIG. 2 may refer to a UDSF network element, and the mobility management network element may refer to an AMF network element.

Referring to Figure 2, the method includes:

Step 201: The first mobility management network element sends a first temporary user identification request message to the data storage network element, where the first temporary user identification request message is used to request the data storage network element to allocate the first temporary to the first terminal. User ID.

Step 202: The data storage network element receives the first temporary user identification request message sent by the first mobility management network element.

Step 203: The data storage network element sends a first temporary user identification request response message to the first mobility management network element, where the first temporary user identification request response message includes the data storage network element. The first temporary user identifier assigned by the first terminal.

Step 204: The first mobility management network element receives a first temporary user identity request response message sent by the data storage network element.

Step 205: The first mobility management network element generates context information of the first terminal that includes the first temporary user identifier, and sends context information of the first terminal to the data storage network element.

In the embodiment of the present application, the context information of a terminal has a mapping relationship with the temporary user identifier of the terminal, and the temporary user identifier of the terminal can be used to index the context information of the terminal. For the convenience of description, in the following description, “the first terminal Context information may also be considered to mean "context information mapped with the first temporary user identity."

Step 206: The data storage network element receives the context information of the first terminal that is sent by the first mobility management network element, where the context information of the first terminal includes the first temporary user identifier.

In the above method, the data storage network element is configured to allocate the first temporary user identifier, and store the context information of the first terminal, so that the N2 interface between the access network element and the mobility management network element is non-sticky. That is, the access network element does not need to consider the state before the first terminal when selecting the mobility management network element for the first terminal, and only needs to select according to the current virtual resource usage situation and supported performance of each mobile management network element. An optimal mobility management network element serves the first terminal.

Before the step 201, the first terminal is registered in the network by using the first mobility management network element. The specific registration process is not limited in this application, and details are not described herein again.

After the first terminal is registered in the network by the first mobility management network element, the first mobility management network needs the first terminal to generate context information, so as to provide services such as data transmission for the first terminal.

In step 201, after the first mobility management network element determines that the first terminal needs to be registered in the network, the first temporary user identifier is directly assigned to the first terminal in the prior art, and the data storage network element is requested to be the first. The terminal allocates the first temporary user identifier to prevent the first temporary user identifier allocated by the first mobility management network element from being duplicated.

In the step 202, the data storage network element may be a new functional entity in the future 5G system. In this embodiment, the data storage network element may be used to allocate a temporary user identifier to the terminal, and generally only one data for a network. The storage network element allocates a temporary user identifier, and all the mobility management network elements need to obtain the temporary user identifier of the terminal through the data storage network element.

In the embodiment of the present application, the data storage network element allocates the first terminal according to the public land mobile network (PLMN) to which the terminal belongs, the first mobility management network element that serves the terminal, and the identifier of the data storage network element. The first temporary user identity of the first terminal can be uniquely identified.

In the embodiment of the present application, the first temporary user identifier may be a TMSI, or may be a 5G Temporary User Identifier (5GTUI), and the like. Give an example one by one.

In the embodiment of the present application, the first temporary user identifier allocated by the data storage network element may have multiple structures, which are respectively described in detail below;

FIG. 3 is a schematic diagram of a temporary user identifier provided by an embodiment of the present application. In FIG. 3, the first temporary user identifier may be a 5G-Global Unique Temporary Identity (5G-GUTI). There are several functions of the 5G-GUTI. For example, the 5G-GUTI can be used as a temporary user identifier of the terminal to prevent long-term exposure of the terminal's International Mobile Subscriber Identity (IMSI) to reduce risks. 5G-GUTI includes 5G Access and Mobility Management Function Identifier (5GAMFI) and AMF Temporary Identifier (A-TI), ie <5G-GUTI>:=<5GAMFI><A-TI>, AMF Temporary The identifier can be represented by 32 bits, <5GAMFI>:=<MCC><MNC><AMFGI><AMFC>.

Specifically, the 5GAMFI includes a Public Land Mobile Network Identifier (PLMN ID) and an AMF Identity (AMFI). The PLMN ID includes a 12-bit Mobile Country Code (MCC) and an 8- or 12-bit Mobile Network Code (MNC). The AMFI includes a 16-bit AMF Group Identifier (AMFGI) and an 8-bit AMF Code (AMF Code), wherein the AMFGI can also be replaced with a UDSF Identifier (UDSFI) set by the data storage network element. The AMFC and AMF temporary identifiers can also be used to form a 5G Temporary Identifier (5G-TI). The 5G-TI can also be called a system temporary identifier.

The first temporary user identifier may include first indication information, where the first indication information may be AMFI or UDSFI, and the first indication information is used to indicate whether context information of the first terminal is stored in the data storage network. Yuanzhong.

In FIG. 3, the first temporary user identifier includes only one of the AMFI and the UDSFI. When the first temporary user identifier includes only the UDSFI, the first mobility management network element or the data storage network element is in the first temporary user identifier. The bit corresponding to the first indication information is set to UDSFI; when the first temporary user identifier includes only the AMFI, the first mobility management network element or the data storage network element sets the bit corresponding to the first indication information in the first temporary user identifier. Set to AMFI. When the first indication information is the UDSFI, the context information used to indicate the first temporary user identifier mapping with the first terminal is stored in the data storage network element; when the first indication information is AMFI, it is used to indicate Context information mapped with the first temporary user identifier of the first terminal is not stored in the data storage network element. At this time, when the second mobility management network element determines that the first indication information in the first temporary user identifier is UDSFI, it may be determined that the context information mapped with the first temporary user identifier is stored in the data storage network element; When the mobility management network element determines that the first indication information in the first temporary user identifier is AMFI, it may be determined that the context information mapped with the first temporary user identifier is not stored in the data storage network element, but is stored in the first In the mobility management network element.

It should be noted that, in FIG. 3, the meaning of each identifier included in the first temporary user identifier may be referred to the definition in the existing literature, and details are not described herein again.

It should be noted that in the prior art, <5G-GUTI>:=<GUAMI><5G-TMSI>

Where <GUAMI>:=<MCC><MNC><AMF Region ID><AMF Set ID><AMF Pointer>;,<5G-S-TMSI>:=<AMF Set ID><AMF Pointer><5G- TMSI>. The specific content of the AMF Region ID, the AMF Set ID, and the AMF Pointer can be described in the prior art and will not be described here. In the embodiment of the present application, 5GAMFI corresponds to GUAMI in the prior art, A-TI corresponds to 5G-TMSI; MCC and MNC in 5GAMFI correspond to MCC and MNC in GUAMI respectively; AMFGI in 5GAMFI corresponds to in GUAMI AMF Region ID and AMF Set ID, or corresponding to UDSFI, ie <AMFGI>:=<AMF Region ID><AMF Set ID>:=<DSFI>; AMFC in 5GAMFI corresponds to AMF Pointer in GUAMI, ie <AMFC >:=<AMF Pointer>.

With reference to FIG. 3, in the embodiment of the present application, the first temporary user identifier may include both AMFI and UDSFI, and may be specifically referred to FIG. In FIG. 4, the first temporary user identifier may be 5G-GUTI, and the 5G-GUTI includes 5GAMFI, UDSFI, and A-TI, that is, <5G-GUTI>:=<5GAMFI><UDSFI><A-TI>, where < 5GAMFI>:=<MCC><MNC><AMFGI><AMFC>. For details of the foregoing, refer to the foregoing description, and details are not described herein again.

In FIG. 4, the first indication information in the first temporary user identifier may be UDSFI, and the first indication information indicates that the first mobility management network element is used when the context information mapped with the first temporary user identifier is stored in the data storage network element. Or the data storage network element sets the bit corresponding to the first indication information in the first temporary user identifier to the UDSFI; the first indication information indicates that the context information mapped with the first temporary user identifier is not stored in the data storage network element, The first mobility management network element or the data storage network element sets a bit corresponding to the first indication information in the first temporary user identifier to a default value. At this time, when the second mobility management network element determines that the UDSFI in the first temporary user identifier is a default value, it may be determined that the context information mapped with the first temporary user identifier is not stored in the data storage network element; When the mobility management network element determines that the UDSFI in the first temporary user identifier is not the default value, it may be determined that the context information mapped with the first temporary user identifier is stored in the data storage network element.

Of course, the first indication information may be a single information in the first temporary user identifier, and the first temporary user identifier may also have other forms, for example, the first temporary user identifier includes the PLMN ID, the first indication information, and the UDSFI. , AMFI, and A-TI; or the first temporary user identity includes a PLMN ID, first indication information, AMFI, and A-TI.

In the embodiment of the present application, the first indication information may be set by the data storage network element in the first temporary user identifier while the first temporary user identifier is allocated to the first terminal, and of course, the data storage network element is the first terminal. While the first temporary user identifier is allocated, the bit corresponding to the first indication information in the first temporary user identifier may not be set, and the first indication information is set by the first mobility management network element.

In step 203, the data storage network element sends the generated first temporary user identifier to the first mobility management network element.

In step 204, after the first mobility management network element receives the first temporary user identifier, if it is determined that the data storage network element does not set the first indication information in the first temporary user identifier, the first temporary user identifier is set in the first temporary user identifier. First indication information.

In step 205, the first temporary user identifier is included in the context information of the first terminal generated by the first mobility management network element, so the first temporary user identifier can be used to uniquely indicate the context information of the first terminal.

After receiving the first temporary user identification request response message, the first mobility management network element may further send a registration response message including the first temporary user identifier to the first terminal, so as to notify the first terminal that the registration is successful. Then, the registration confirmation message returned by the first terminal is received, and the registration of the first terminal in the network is completed.

After the context information of the first terminal generated by the first mobility management network element, the context information of the first terminal may be sent to the data storage network element. For example, when the first mobility management network element determines that the first terminal changes from the connected state to the idle state, or the first mobility management network element determines that the first terminal is no longer served, it is determined that the first terminal does not need to be saved. Context information of a terminal, so that the context information of the first terminal can be sent to the data storage network element.

In step 206, after receiving the context information of the first terminal, the data storage network element saves the context information of the first terminal.

After the first terminal enters the connected state from the idle state, the first terminal determines, according to the first indication information, that the context information mapped with the first temporary user identifier is not stored in the data storage network element, The access network element sends a Radio Resource Control (RRC) request message including the temporary identifier of the system, and the RRC request message is used to request the access network element to select the mobility for the first terminal to serve. Management network element, where the system temporary identifier can be 5G-TI. If the first terminal determines that the context information mapped with the first temporary user identifier is stored in the data storage network element according to the first indication information, sending, by the first network terminal, the network information to the access network element does not include the system temporary The identified RRC request message.

The access network element sends an RRC request response message to the first terminal, where the RRC request response message is used to indicate that the mobility management network element serving the first terminal is switched from the first mobility management network element to the second mobility management. Network element. After determining that the second mobility management network element is serving the first terminal, the access network element sends the first temporary user identifier of the first terminal to the second mobility management network element.

After the mobility management network element serving the first terminal is switched from the first mobility management network element to the second mobility management network element, the second mobility management network element needs to obtain the first terminal before serving the first terminal. Contextual information. At this time, the second mobility management network element determines, according to the first indication information in the first temporary user identifier, that the context information mapped with the first temporary user identifier is stored in the data storage network element, and then goes to the data storage network. The meta sends a context information request message, and the context information request message is used to request context information of the first terminal.

After receiving the context information request message that is sent by the second mobility management network element and including the first temporary user identifier of the first terminal, the data storage network element may perform, according to the first temporary user identifier, all the context information stored in the first temporary user identifier. The index determines the context information mapped with the first temporary user identifier, so that the context information mapped with the first temporary user identifier of the first terminal is sent to the second mobility management network element.

Correspondingly, the second mobility management network element determines, according to the first indication information in the first temporary user identifier, that the context information mapped with the first temporary user identifier is stored in the first mobility management network element, and is first The mobility management network element sends a context information request message, and the first mobility management network element sends the context information of the first terminal to the second mobility management network element.

For example, the first temporary user identifier is 5GTUI, and the second mobility management network element determines, according to the first indication information in the first temporary user identifier, that the context information mapped with the first temporary user identifier is stored in the data storage network element. Obtaining the UDSFI from the first temporary user identifier, thereby determining the data storage network element according to the UDSFI, thereby requesting the data storage network element for the context information of the first terminal; and the second mobility management network element according to the first temporary user identifier After the indication information determines that the context information mapped with the first temporary user identifier is not stored in the data storage network element, acquiring 5GAMFI from the first temporary user identifier, thereby determining the first mobility management network element according to the 5GAMFI, thereby The first mobility management network element requests context information of the first terminal

In the embodiment of the present application, the first mobility management network element may further receive the second temporary user identifier of the second terminal that is sent by the access network element, and the second temporary user identifier is that the second terminal is moved by the second Before the first management network element is switched to the first mobility management network element, the data storage network element is allocated by the data storage network element.

The second temporary user identifier includes second indication information, where the second indication information is used to indicate whether the context information of the second terminal is stored in the data storage network element; The description in the first temporary user identifier is not described here.

If the first mobility management network element determines that the context information of the second terminal is stored in the data storage network element according to the second indication information, requesting, by the data storage network element, the second terminal Contextual information. Correspondingly, if the first mobility management network element determines that the context information of the second terminal is not stored in the data storage network element according to the second indication information, then the second mobility management network element is sent to the second mobility management network. The element requests context information of the second terminal.

As shown in FIG. 5, it is a schematic diagram of context information management provided by an embodiment of the present application. In FIG. 5, the first temporary user identifier is 5GTUI, and the first temporary user identifier includes first indication information and a system temporary identifier.

Step 501: The first terminal registration process.

The specific content of the process can refer to the prior art, and details are not described herein again.

Step 502: The first mobility management network element sends a first temporary user identity request message to the data storage network element.

The message is used to request that the first temporary user identifier be assigned to the first terminal.

Step 503: The data storage network element allocates, to the first terminal, a first temporary user identifier that uniquely indicates the first terminal.

Step 504: The data storage network element sends a first temporary user identification request response message to the first mobility management network element.

The first temporary user identification request response message includes a first temporary user identifier allocated for the first terminal.

Step 505: The first mobility management network element sets the first indication information in the first temporary user identifier, and generates context information of the first terminal. The first temporary user identifier is included in the context information of the first terminal.

The first indication information may be used to determine whether the network accessed by the first terminal is sticky. When the first indication information indicates that the context information mapped with the first temporary user identifier is stored in the data storage network element, the network accessed by the first terminal is not sticky; otherwise, the first indication information indicates the first temporary user. When the context information of the identifier mapping is not stored in the data storage network element, the network accessed by the first terminal is sticky.

Step 506: The first mobility management network element sends a registration response message including the first temporary user identifier to the first terminal.

Step 507: The first terminal sends a registration confirmation message to the first mobility management network element.

At this time, the first terminal is switched to the connected state.

Step 508: The first terminal transits from the connected state to the idle state, and the first mobility management network element sends the context information of the first terminal to the data storage network element.

Step 509: After the first terminal is changed from the idle state to the connected state, the first terminal information is determined to be stored in the data storage network element according to the first indication information, and the non-included information is sent to the access network element. The RRC request message of the system temporary identifier in the first temporary user identifier. The RRC request message is used to request the access network element to select a mobility management network element for the first terminal to serve.

Step 510: The access network element determines that the second mobility management network element is serving the first terminal, and sends an RRC request response message to the first terminal, where the RRC request response message is used to indicate the mobility of serving the first terminal. The management network element is switched by the first mobility management network element to the second mobility management network element.

Step 511: The access network element sends the first temporary user identifier to the second mobility management network element.

Step 512: The second mobility management network element determines, according to the first indication information in the first temporary user identifier, that the context information of the first terminal is stored in the data storage network element, and then sends a context information request message to the data storage network element. The context information request message is used to request context information of the first terminal.

It should be noted that, if the second mobility management network element determines, according to the first indication information in the first temporary user identifier, that the context information of the first terminal is not stored in the data storage network element, the first mobility management is performed. The network element sends a context information request message.

Step 513: The data storage network element sends the context information of the first terminal to the second mobility management network element.

As shown in FIG. 6, a context information management apparatus provided by an embodiment of the present application.

Referring to Figure 6, the apparatus 600 includes:

The receiving unit 601 is configured to receive a first temporary user identifier request message sent by the first mobility management network element, where the first temporary user identifier request message is used to request to allocate a first temporary user identifier to the first terminal.

The sending unit 602 is configured to send a first temporary user identifier request response message to the first mobility management network element, where the first temporary user identifier request response message includes the data storage network element as the first terminal The first temporary user ID assigned;

The receiving unit 601 is configured to receive the context information of the first terminal that is sent by the first mobility management network element, where the context information of the first terminal includes the first temporary user identifier.

Optionally, the first temporary user identifier includes first indication information, where the first indication information is used to indicate whether context information of the first terminal is stored in the data storage network element.

Optionally, the receiving unit 601 is further configured to receive, by the second mobility management network element, a context information request message that includes the first temporary user identifier of the first terminal, where the context information request message is used to request Context information of the first terminal; the second mobility management network element is a mobility management network element serving the first terminal;

The sending unit 602 is further configured to send the context information of the first terminal to the second mobility management network element.

Optionally, the context information request message is sent by the second mobility management network element after determining that the context information of the first terminal is stored in the data storage network element according to the first indication information.

As shown in FIG. 7, a context information management apparatus provided in an embodiment of the present application.

Referring to Figure 7, the apparatus 700 includes:

The transceiver unit 701 is configured to send a first temporary user identification request message to the data storage network element, where the first temporary user identification request message is used to request the data storage network element to allocate a first temporary user identifier to the first terminal; The first temporary user identification request response message sent by the data storage network element, where the first temporary user identification request response message includes the first temporary user identifier;

The processing unit 702 is configured to generate context information of the first terminal that includes the first temporary user identifier.

The transceiver unit 701 is configured to send context information of the first terminal to the data storage network element.

Optionally, before the sending and receiving unit 701 sends the context information of the first terminal to the data storage network element, the processing unit 702 is further configured to:

Determining that the first terminal is in an idle state;

Or, it is determined that the first terminal is no longer served.

Optionally, the transceiver unit 701 is further configured to:

Receiving a second temporary user identifier of the second terminal that is sent by the network element of the access network; the second temporary user identifier is that the second terminal is switched by the second mobility management network element to the first mobility management network element The second temporary user identifier is included in the second temporary user identifier, and the second indication information is used to indicate context information with the second terminal. Whether it is stored in the data storage network element;

The processing unit 702 is further configured to: if it is determined that the context information of the second terminal is stored in the data storage network element according to the second indication information, requesting, by the transceiver unit, the data storage network element Context information of the second terminal.

Optionally, the processing unit 702 is further configured to:

Determining, by the transceiver unit, the second terminal by using the transceiver unit to the second mobility management network element, if it is determined that the context information of the second terminal is not stored in the data storage network element according to the second indication information. Contextual information.

As shown in FIG. 8, a context information management apparatus provided in an embodiment of the present application.

Referring to Figure 8, the apparatus 800 includes:

The transceiver unit 801 is configured to acquire a first temporary user identifier of the first terminal from the first mobility management network element, where the first temporary user identifier includes first indication information and a system temporary identifier, where the first indication information is used by And indicating whether the context information of the first terminal is stored in the data storage network element;

The processing unit 802 is configured to determine, after the first terminal enters the connected state from the idle state, that the context information mapped with the first temporary user identifier is not stored in the data storage network element according to the first indication information. Transmitting, by the transceiver unit, the system temporary identifier to the access network element.

As shown in FIG. 9, a context information management apparatus provided in an embodiment of the present application.

Referring to FIG. 9, the apparatus 900 includes a processor 901, a transceiver 902, a memory 903, and a communication interface 904; wherein the processor 901, the transceiver 902, the memory 903, and the communication interface 904 are connected to one another via a bus 905.

The processor 901 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP. The processor 901 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.

The memory 903 may include a volatile memory such as a random-access memory (RAM); the memory may also include a non-volatile memory such as a flash memory. A hard disk drive (HDD) or a solid-state drive (SSD); the memory 903 may also include a combination of the above types of memories.

The communication interface 904 can be a wired communication access port, a wireless communication interface, or a combination thereof, wherein the wired communication interface can be, for example, an Ethernet interface. The Ethernet interface can be an optical interface, an electrical interface, or a combination thereof. The wireless communication interface can be a WLAN interface.

The bus 905 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one double-headed arrow is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.

The memory 903 can be used to store program instructions, and the processor 901 calls the program instructions stored in the memory 903 to execute:

Receiving, by the transceiver 902, a first temporary user identification request message sent by the first mobility management network element, where the first temporary user identification request message is used to request to allocate a first temporary user identifier to the first terminal; a mobility management network element sends a first temporary user identification request response message, where the first temporary user identification request response message includes a first temporary user identifier that is allocated by the data storage network element to the first terminal; The context information of the first terminal that is sent by the first mobility management network element, where the context information of the first terminal includes the first temporary user identifier.

Optionally, the transceiver 902 is further configured to receive, by the second mobility management network element, a context information request message that includes the first temporary user identifier of the first terminal, where the context information request message is used to request Context information of the first terminal; the second mobility management network element is a mobility management network element serving the first terminal;

Sending the context information of the first terminal to the second mobility management network element.

As shown in FIG. 10, it is a context information management apparatus provided by an embodiment of the present application.

Referring to FIG. 10, the apparatus 1000 includes a processor 1001, a transceiver 1002, a memory 1003, and a communication interface 1004. The processor 1001, the transceiver 1002, the memory 1003, and the communication interface 1004 are connected to each other through a bus 1005. For details of the foregoing modules, refer to the description of related modules in Figure 9, and details are not described herein.

The transceiver 1002 is configured to send a first temporary user identification request message to the data storage network element, where the first temporary user identification request message is used to request the data storage network element to allocate a first temporary user identifier to the first terminal; The first temporary user identification request response message sent by the data storage network element, where the first temporary user identification request response message includes the first temporary user identifier;

The processor 1001 is configured to generate context information of the first terminal that includes the first temporary user identifier.

The transceiver 1002 is configured to send context information of the first terminal to the data storage network element.

Optionally, before the transceiver 1002 sends the context information of the first terminal to the data storage network element, the processor 1001 is further configured to:

Determining that the first terminal is in an idle state;

Or, it is determined that the first terminal is no longer served.

Optionally, the transceiver 1002 is further configured to:

The processor 1001 is further configured to: if it is determined that the context information of the second terminal is stored in the data storage network element according to the second indication information, requesting, by the transceiver, the data storage network element Context information of the second terminal.

Optionally, the processor 1001 is further configured to:

If it is determined that the context information of the second terminal is not stored in the data storage network element according to the second indication information, requesting, by the transceiver, the second terminal to the second mobility management network element Contextual information.

As shown in FIG. 11, a context information management apparatus provided in an embodiment of the present application.

Referring to FIG. 11, the apparatus 1100 includes a processor 1101, a transceiver 1102, a memory 1103, and a communication interface 1104; wherein the processor 1101, the transceiver 1102, the memory 1103, and the communication interface 1104 are connected to each other through a bus 1105. For details of the foregoing modules, refer to the description of related modules in Figure 9, and details are not described herein.

The transceiver 1102 is configured to acquire a first temporary user identifier of the first terminal from the first mobility management network element, where the first temporary user identifier includes first indication information and a system temporary identifier, where the first indication information is used by And indicating whether the context information of the first terminal is stored in the data storage network element;

The processor 1101 is configured to: after the first terminal enters the connected state from the idle state, determine, according to the first indication information, context information that is mapped to the first temporary user identifier is not stored in the data storage network element. Transmitting, by the transceiver, the system temporary identifier to the access network element.

The embodiment of the present application further provides a computer readable storage medium for storing computer software instructions required to execute the foregoing processor, which includes a program for executing the above-mentioned processor.

The embodiment of the present application provides a computer program product that, when the computer reads and executes the computer program product, causes the computer to perform the method in any of the above possible designs.

The embodiment of the present application provides a chip connected to a memory for reading and executing a software program stored in the memory to implement the method in any of the above possible designs.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of the method, apparatus (system), and computer program product according to the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

A context information management method, the method comprising:

The data storage network element receives the first temporary user identification request message sent by the first mobility management network element, where the first temporary user identification request message is used to request the data storage network element to allocate the first temporary user identifier to the first terminal. ;

The data storage network element sends a first temporary user identification request response message to the first mobility management network element, where the first temporary user identification request response message includes the data storage network element as the first terminal The first temporary user ID assigned;

The data storage network element receives the context information of the first terminal that is sent by the first mobility management network element, and the first temporary user identifier is included in the context information of the first terminal.
The method according to claim 1, wherein the first temporary user identifier includes first indication information, and the first indication information is used to indicate whether context information of the first terminal is stored in the data. Storage in the network element.
The method according to claim 1 or 2, wherein the method further comprises:

The data storage network element receives a context information request message that is sent by the second mobility management network element and includes the first temporary user identifier of the first terminal, where the context information request message is used to request the context of the first terminal. Information; the second mobility management network element is a mobility management network element serving the first terminal;

The data storage network element sends the context information of the first terminal to the second mobility management network element.
The method according to claim 3, wherein the context information request message is that the second mobility management network element determines that context information of the first terminal is stored in the data according to the first indication information. Sent after the storage NE.
A context information management method, the method comprising:

The first mobility management network element sends a first temporary user identification request message to the data storage network element, where the first temporary user identification request message is used to request the data storage network element to allocate a first temporary user identifier to the first terminal;

The first mobility management network element receives a first temporary user identification request response message sent by the data storage network element, where the first temporary user identification request response message includes the first temporary user identifier;

The first mobility management network element generates context information of the first terminal that includes the first temporary user identifier, and sends context information of the first terminal to the data storage network element.
The method according to claim 5, wherein the first temporary user identifier includes first indication information, and the first indication information is used to indicate whether context information of the first terminal is stored in the data. Storage in the network element.
The method according to claim 5 or 6, wherein before the first mobility management network element sends the context information of the first terminal to the data storage network element, the method further includes:

The first mobility management network element determines that the first terminal is in an idle state;

Alternatively, the first mobility management network element determines that the first terminal is no longer served.
The method according to any one of claims 5 to 7, wherein the method further comprises:

Receiving, by the first mobility management network element, a second temporary user identifier of the second terminal that is sent by the network element of the access network; the second temporary user identifier is that the second terminal is switched by the second mobility management network element Before the first mobility management network element, the data storage network element is allocated to the second terminal; the second temporary user identifier includes second indication information, and the second indication information is used to indicate Whether the context information of the second terminal is stored in the data storage network element;

If the first mobility management network element determines that the context information of the second terminal is stored in the data storage network element according to the second indication information, requesting, by the data storage network element, the second terminal Contextual information.
The method of claim 8 further comprising:

If the first mobility management network element determines that the context information of the second terminal is not stored in the data storage network element according to the second indication information, requesting, by the second mobility management network element, the second mobility management network element The context information of the second terminal is described.
A context information management method, the method comprising:

The first terminal acquires the first temporary user identifier of the first terminal from the first mobility management network element; the first temporary user identifier includes first indication information and a system temporary identifier, where the first indication information is used Indicate whether the context information of the first terminal is stored in the data storage network element;

After the first terminal enters the connected state from the idle state, the first terminal determines, according to the first indication information, that the context information mapped with the first temporary user identifier is not stored in the data storage network element, And sending the system temporary identifier to the access network element.
A context information management apparatus, comprising:

a receiving unit, configured to receive a first temporary user identification request message sent by the first mobility management network element, where the first temporary user identification request message is used to request to allocate a first temporary user identifier to the first terminal;

a sending unit, configured to send a first temporary user identification request response message to the first mobility management network element, where the first temporary user identification request response message includes the data storage network element being allocated to the first terminal First temporary user ID;

The receiving unit is configured to receive context information of the first terminal that is sent by the first mobility management network element, where the context information of the first terminal includes the first temporary user identifier.
The device according to claim 11, wherein the first temporary user identifier includes first indication information, and the first indication information is used to indicate whether context information of the first terminal is stored in the data. Storage in the network element.
The apparatus according to claim 11 or 12, wherein the receiving unit is further configured to receive a context information request message that is sent by the second mobility management network element and includes the first temporary user identifier of the first terminal. The context information request message is used to request context information of the first terminal; the second mobility management network element is a mobility management network element serving the first terminal;

The sending unit is further configured to send the context information of the first terminal to the second mobility management network element.
The apparatus according to claim 13, wherein the context information request message is that the second mobility management network element determines, according to the first indication information, that context information of the first terminal is stored in the data. Sent after the storage NE.
A context information management apparatus, the apparatus comprising:

a transceiver unit, configured to send a first temporary user identification request message to the data storage network element, where the first temporary user identification request message is used to request the data storage network element to allocate a first temporary user identifier to the first terminal; a first temporary user identifier request response message sent by the data storage network element, where the first temporary user identifier request response message includes the first temporary user identifier;

a processing unit, configured to generate context information of the first terminal that includes the first temporary user identifier;

The transceiver unit is configured to send context information of the first terminal to the data storage network element.
The device according to claim 15, wherein the first temporary user identifier includes first indication information, and the first indication information is used to indicate whether context information of the first terminal is stored in the data. Storage in the network element.
The device according to claim 15 or 16, wherein before the sending and receiving unit sends the context information of the first terminal to the data storage network element, the processing unit is further configured to:

Determining that the first terminal is in an idle state;

Or, it is determined that the first terminal is no longer served.
The device according to any one of claims 15 to 17, wherein the transceiver unit is further configured to:

Receiving a second temporary user identifier of the second terminal that is sent by the network element of the access network; the second temporary user identifier is that the second terminal is switched by the second mobility management network element to the first mobility management network element The second temporary user identifier is included in the second temporary user identifier, and the second indication information is used to indicate context information with the second terminal. Whether it is stored in the data storage network element;

The processing unit is further configured to: if it is determined that the context information of the second terminal is stored in the data storage network element according to the second indication information, requesting, by the transceiver unit, the data storage network element The context information of the second terminal is described.
The device according to claim 18, wherein the processing unit is further configured to:

Determining, by the transceiver unit, the second terminal by using the transceiver unit to the second mobility management network element, if it is determined that the context information of the second terminal is not stored in the data storage network element according to the second indication information. Contextual information.
A context information management apparatus, the apparatus comprising:

a transceiver unit, configured to acquire a first temporary user identifier of the first terminal from the first mobility management network element, where the first temporary user identifier includes first indication information and a system temporary identifier, where the first indication information is used Indicate whether the context information of the first terminal is stored in the data storage network element;

a processing unit, configured to determine, according to the first indication information, that context information mapped with the first temporary user identifier is not stored in the data storage network element, after the first terminal enters a connection state from an idle state And sending, by the transceiver unit, the system temporary identifier to the access network element.
A computer readable storage medium, wherein the computer storage medium stores computer readable instructions that, when the computer reads and executes the computer readable instructions, cause the computer to perform any of claims 1-11 The method described in the item.
A computer program product characterized by causing a computer to perform the method of any of claims 1-10 when the computer reads and executes the computer program product.
A chip, characterized in that the chip is connected to a memory for reading and executing a software program stored in the memory to implement the method of any of claims 1-10.