CN113825209B

CN113825209B - Access method, device and equipment of shared network

Info

Publication number: CN113825209B
Application number: CN202110225874.7A
Authority: CN
Inventors: 旷婧华; 陈卓
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2023-05-05
Anticipated expiration: 2041-03-01
Also published as: CN113825209A

Abstract

The invention provides a method, a device and equipment for accessing a shared network, and relates to the technical field of communication. The method is performed by a user equipment and comprises: determining a public land mobile network identification (PLMN ID) used by an access shared network; wherein the PLMN ID is sent by the network device, or the user device autonomously selects; the PLMN ID is used for guiding the user equipment to access a core network of a home operator; and initiating an access process according to the PLMN ID. The scheme of the invention is used for realizing that the user equipment correctly selects the core network of the home operator to serve the home operator.

Description

Access method, device and equipment of shared network

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a device for accessing a shared network.

Background

The sharing mode often adopted by the sharing network is wireless network sharing or core network sharing. When the wireless network sharing is adopted, the base station is connected with core networks of a plurality of operators and broadcasts public land mobile networks (Public Land Mobile Network, PLMN for short) of the operators; when the core network sharing is adopted, the base station is only connected with the core network of the visiting place operator, only the PLMN of the visiting place operator is broadcasted, and the core network of the visiting place operator allows the user to enter.

However, when the terminal that has roamed into the visited network first performs power-on registration with the base station shared by the core network and then performs power-on registration with the base station shared by the wireless network, the PLMN of the visited operator (i.e. plmn#1) is still selected to access and the core network of the visited operator (i.e. plmn#1) is still registered, and the core network of the home operator (i.e. plmn#2) cannot be properly selected to serve the same.

Disclosure of Invention

The invention aims to provide a method, a device and equipment for accessing a shared network, so that user equipment can correctly select a core network of a home operator to serve the core network.

To achieve the above object, an embodiment of the present invention provides a method for accessing a shared network, which is executed by a user equipment and includes:

determining a public land mobile network identification (PLMN ID) used by an access shared network; wherein the PLMN ID is sent by the network device, or the user device autonomously selects; the PLMN ID is used for guiding the user equipment to access a core network of a home operator;

and initiating an access process according to the PLMN ID.

Optionally, the determining the PLMN ID of the public land mobile network used by the access sharing network includes:

receiving PLMN ID sent by network equipment;

Taking the received PLMN ID as the PLMN ID used by the access sharing network;

wherein the network device comprises at least one of:

the first core network equipment is core network equipment of a home operator;

the second core network equipment is core network equipment of a visiting place operator;

a wireless network device.

Optionally, when the network device is a first core network device, the PLMN ID is sent by the first core network device after the second core network device determines that the user device does not correctly select the shared network, and instructs the user device to complete reselection of the core network device.

Optionally, in the case that the network device is a second core network device, the PLMN ID is sent after the second core network device determines that the user device does not correctly select the shared network.

Optionally, in the case that the network device is a wireless network device, the PLMN ID is sent by the wireless network device after receiving the PLMN ID related to the user device sent by the second core network device, or is sent by the wireless network device after determining the PLMN ID of the user device.

Optionally, the receiving the PLMN ID sent by the network device includes:

and the user equipment receives the PLMN ID sent by the network equipment through the AS wireless control message, the NAS direct transmission message or the AS/NAS mixed message.

Optionally, after receiving the PLMN ID sent by the network device, the method further includes:

and updating the globally unique user equipment identifier GUTI according to the received PLMN ID.

acquiring a system message broadcasted by a base station, wherein the system message comprises one or more PLMN IDs;

in the case that a home PLMN ID exists in the one or more PLMN IDs, determining the home PLMN ID as a PLMN ID for use by the access sharing network.

To achieve the above object, an embodiment of the present invention provides a method for accessing a shared network, which is executed by a network device, including:

and sending PLMN ID, wherein the PLMN ID is used for guiding the user equipment to access the core network of the home operator.

Optionally, the network device includes at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

Optionally, the sending PLMN ID includes:

when the network device is a first core network device, the first core network device receives the indication information about the selection of the first core network device by the user device, which is sent by the second core network device, and then sends the PLMN ID to the user device.

Optionally, the first core network device receives the indication information about the selection of the first core network device by the user equipment, which is sent by the second core network device, and includes:

the first core network device receives indication information sent after the second core network device determines that the user device selects the first core network device and switches the user device to the first core network device.

Optionally, the determining, by the second core network device, that the user equipment selects the first core network device includes:

the second core network device determines that the user device does not properly select a shared network, and determines that the user device selects the first core network device.

Optionally, the sending PLMN ID includes:

And when the network equipment is second core network equipment, the second core network equipment determines that the user equipment does not correctly select a shared network and sends the PLMN ID to the user equipment.

Optionally, the determining, by the second core network device, that the user device does not properly select the shared network includes:

the second core network equipment determines the home PLMN ID of the user equipment according to the identity home information of the user equipment;

and judging that the user equipment does not correctly select a shared network according to the home PLMN ID, and determining the PLMN ID of the user equipment.

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the method further comprises:

and under the condition that the second core network equipment determines that the user equipment does not correctly select the shared network, the second core network equipment initiates reselection of the core network equipment.

Optionally, the method further comprises:

and under the condition that the second core network equipment determines that the user equipment does not select the shared network correctly, sending indication information to the wireless network equipment, wherein the indication information is used for indicating the wireless network equipment to send PLMN ID to the user.

Optionally, the sending PLMN ID includes:

when the network device is a wireless network device, the wireless network device sends the PLMN ID to the user device after receiving the PLMN ID about the user device sent by the second core network device; or alternatively, the first and second heat exchangers may be,

and after the wireless network equipment determines the PLMN ID of the user equipment, the wireless network equipment sends the PLMN ID to the user equipment.

Optionally, the PLMN ID sent by the second core network device about the user equipment is:

and the second core network equipment determines that the user equipment does not correctly select the shared network and then sends the PLMN ID to the wireless network equipment.

Optionally, the wireless network device determines the PLMN ID, including:

and when the wireless network equipment determines that the user equipment does not correctly select the shared network, the wireless network equipment sends the PLMN ID to the user equipment.

Optionally, the determining, by the wireless network device, that the user device does not properly select the shared network includes:

the wireless network equipment determines the home PLMN ID of the user equipment according to the identity home information of the user equipment;

and judging that the user equipment does not correctly select the shared network according to the home PLMN ID of the user equipment.

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the wireless network device determines the home PLMN ID of the user equipment according to the identity home information of the user equipment, including:

inquiring the home PLMN ID corresponding to the identity home information of the user equipment through the air interface of the wireless network equipment; or (b)

And acquiring the home PLMN ID corresponding to the identity home information of the user equipment through a core network element.

Optionally, the sending PLMN ID includes:

and sending the PLMN ID through the AS wireless control message, the NAS direct transmission message or the AS/NAS mixed message.

To achieve the above object, an embodiment of the present invention provides an access device for a shared network, including:

a determining module, configured to determine a public land mobile network identifier PLMN ID used by the access sharing network; wherein the PLMN ID is sent by the network device, or the user device autonomously selects; the PLMN ID is used for guiding the user equipment to access a core network of a home operator;

and the first sending module is used for initiating an access process according to the PLMN ID.

Optionally, the determining module includes:

a first receiving sub-module, configured to receive a PLMN ID sent by a network device;

a first processing sub-module, configured to use the received PLMN ID as a PLMN ID used for accessing the shared network;

wherein the network device comprises at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

Optionally, the receiving module is further configured to:

Optionally, the apparatus further comprises:

and the updating module is used for updating the globally unique user equipment identifier GUTI according to the received PLMN ID.

Optionally, the determining module includes:

an obtaining sub-module, configured to obtain a system message broadcasted by a base station, where the system message includes one or more PLMN IDs;

a first determining submodule, configured to determine, in a case where a home PLMN ID exists in the one or more PLMN IDs, the home PLMN ID as a PLMN ID used by the access sharing network.

and the second sending module is used for sending PLMN ID, and the PLMN ID is used for guiding the user equipment to access the core network of the home operator.

Optionally, the network device includes at least one of:

the first core network equipment is core network equipment of a home operator;

A wireless network device.

Optionally, the second sending module is further configured to:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, if the second core network device determines that the user device does not properly select the shared network, a core network device reselection is initiated.

Optionally, if the second core network device determines that the user device does not properly select the shared network, the second core network device sends indication information to the wireless network device, where the indication information is used to instruct the wireless network device to send PLMN IDs to the user.

Optionally, the second sending module is further configured to:

Optionally, the wireless network device determines the PLMN ID, including:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the second sending module is further configured to:

To achieve the above object, an embodiment of the present invention provides a user equipment including a transceiver and a processor, wherein,

the processor is configured to: determining a public land mobile network identification (PLMN ID) used by an access shared network; wherein the PLMN ID is sent by the network device, or the user device autonomously selects; the PLMN ID is used for guiding the user equipment to access a core network of a home operator;

the transceiver is used for: and initiating an access process according to the PLMN ID.

Optionally, the transceiver is further configured to: receiving PLMN ID sent by network equipment;

the transceiver is also for: taking the received PLMN ID as the PLMN ID used by the access sharing network;

wherein the network device comprises at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

Optionally, the transceiver is further configured to:

Optionally, the processor is further configured to:

Optionally, the transceiver is further configured to: acquiring a system message broadcasted by a base station, wherein the system message comprises one or more PLMN IDs;

the processor is further configured to: in the case that a home PLMN ID exists in the one or more PLMN IDs, determining the home PLMN ID as a PLMN ID for use by the access sharing network.

To achieve the above object, an embodiment of the present invention provides a network device, including a transceiver for:

Optionally, the network device includes at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

Optionally, the transceiver is further configured to:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the network device further includes: a processor;

the processor is configured to: and under the condition that the second core network equipment determines that the user equipment does not correctly select the shared network, the second core network equipment initiates reselection of the core network equipment.

Optionally, the transceiver is further configured to:

Optionally, the wireless network device determines the PLMN ID, including:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the transceiver is further configured to:

To achieve the above object, an embodiment of the present invention provides a communication device including a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the processor, when executing the program or instructions, implements the shared network access method as described above.

To achieve the above object, an embodiment of the present invention provides a readable storage medium having stored thereon a program or instructions which when executed by a processor realizes steps in the access method of a shared network as described above.

The technical scheme of the invention has the following beneficial effects:

the method of the embodiment of the invention can initiate an access process by receiving the PLMN ID sent by the network equipment or the PLMN ID autonomously selected by the user equipment, and taking the PLMN ID used for guiding the user equipment to access the core network of the home operator as the PLMN ID used for accessing the shared network, thereby enabling the user equipment to correctly select the core network of the home operator to serve the core network of the home operator

Drawings

Fig. 1 is a flowchart of a method for accessing a shared network performed by a user equipment according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for accessing a shared network performed by a network device according to an embodiment of the present invention;

FIG. 3 is a block diagram of the device corresponding to FIG. 1;

FIG. 4 is a block diagram of the device corresponding to FIG. 2;

fig. 5 is a block diagram of a user equipment according to an embodiment of the present invention;

fig. 6 is a block diagram of a network device according to an embodiment of the present invention;

fig. 7 is a block diagram of a communication device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

In addition, the terms "system" and "network" are often used interchangeably herein.

In the examples provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

As shown in fig. 1, an access method of a shared network according to an embodiment of the present invention is performed by a user equipment, and includes:

step 101, determining a public land mobile network identification PLMN ID used by an access sharing network; wherein the PLMN ID is sent by the network device, or the user device autonomously selects; the PLMN ID is used for guiding the user equipment to access a core network of a home operator;

and step 102, initiating an access process according to the PLMN ID.

Thus, according to the

steps

101 and 102, the ue can initiate an access procedure by receiving the PLMN ID sent by the network device or the PLMN ID autonomously selected by the ue, and using the PLMN ID for guiding the ue to access to the core network of the home operator as the PLMN ID used for accessing the shared network, so that the ue can correctly select the core network of the home operator to serve the ue.

And the PLMN ID sent by the network equipment or the PLMN ID autonomously selected by the user equipment is the home PLMN ID of the user equipment as the PLMN ID for guiding the user equipment to access the home operator.

For example, in the scenario that the user equipment previously roams into the visited network and performs power-on registration with the base station shared by the core network, and then performs power-on registration with the base station shared by the wireless network, it should be appreciated that, because the user equipment last roams into the visited network and performs power-on registration with the base station shared by the core network, the user equipment performs power-on registration with the base station shared by the wireless network, the access sharing network may preferentially use the PLMN ID (e.g., PLMN ID # 1) of the visited operator. And executing the method of the embodiment, the user equipment avoids using the PLMN ID of the visiting place operator by determining the PLMN ID used for accessing the shared network, and performs shared network access based on the PLMN ID of the core network of the guiding user equipment to access the home place operator, thereby guaranteeing the core network of the home place operator to serve the user equipment.

Optionally, in this embodiment, step 101 includes:

receiving PLMN ID sent by network equipment;

taking the received PLMN ID as the PLMN ID used by the access sharing network;

Wherein the network device comprises at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

That is, the user equipment initiates the access procedure according to the PLMN ID informed by at least one of the core network equipment of the home operator, the core network equipment of the visited operator and the wireless network equipment.

In this way, when the user equipment accesses the core network of the visiting place operator, the second core network equipment can guide the user equipment to access the core network of the home place operation. Here, the first core network device sends a PLMN ID for guiding the user equipment to access the core network of the home operator.

And after receiving the indication information about the selection of the first core network device by the user equipment, the first core network device sends the PLMN ID to the user equipment.

That is, the PLMN ID sent by the first core network device and received by the user equipment is sent by the first core network device based on the indication information of the second core network device.

Here, the indication information is indication information transmitted after the second core network device determines that the user device selects the first core network device and switches the user device to the first core network device.

Wherein the second core network device determining that the user equipment selects the first core network device includes: the second core network device determines that the user device does not properly select a shared network, and determines that the user device selects the first core network device.

The second core network equipment determines that the user equipment does not correctly select the shared network is the second core network equipment which determines the home PLMN ID of the user equipment according to the identity home information of the user equipment; and judging that the user equipment does not correctly select a shared network according to the home PLMN ID, and determining the PLMN ID of the user equipment.

Optionally, in this embodiment, the identity attribution information of the user equipment includes at least one of: an identity of the user; context information of the user; subscription information of the user.

Here, for a 4G system, the identity of the user may be an international mobile subscriber identity (International Mobile Subscriber Identification, IMSI); for 5G systems, the identity of the user may be a subscription encrypted identity (Subscription Concealed Identifier, sui), a subscription permanent identity (Subscription Permanent Identifier, SUPI), etc.

Here, the user's uplink information may be context information for mobility management (such as which mobility management entities (Mobility Management Entity, MME) or access and mobility management functions (Access and Mobility Management Function, AMF) have been registered at one time), which is saved by the AMF; the context information for authentication to prove the legitimacy of the user is maintained by the home subscriber server (Home Subscriber Server, HSS) or the unified data management entity (Unified Data Management, UDM). Wherein the subscriber's uplink information includes a home PLMN ID (i.e., home operator PLMN ID) so that the second core network can learn the subscriber's home PLMN ID for determining if the user equipment properly selects the shared network.

Of course, if the second core network device determines that the user device does not properly select the shared network, a core network device reselection, such as AMF reselection, is initiated.

Further optionally, in this embodiment, in a case where the network device is a second core network device, the PLMN ID is sent after the second core network device determines that the user device does not properly select the shared network.

That is, after the second core network device determines that the ue does not properly select the shared network, the second core network device can directly send the PLMN ID guiding the ue to access the core network of the home operator to the ue.

Here, the second core network device determines that the user equipment does not correctly select the shared network, and the second core network device determines the home PLMN ID of the user equipment according to the identity home information of the user equipment; and judging that the user equipment does not correctly select a shared network according to the home PLMN ID, and determining the PLMN ID of the user equipment.

Here, the identity attribution information of the user equipment includes at least one of: an identity of the user; context information of the user; subscription information of the user. For the 4G system, the identity of the user can be an IMSI; for a 5G system, the identity of the user may be sui, SUPI, etc. The uplink information of the user may be the context information for mobility management (such as what has been registered in which MME/AMF) and is saved by the AMF; the context information for authentication to prove the legitimacy of the user is saved by the HSS/UDM. The subscriber's uplink information includes a home PLMN ID (i.e., home operator PLMN ID) so that the second core network can learn the subscriber's home PLMN ID for determining if the user equipment properly selects the shared network.

Further, optionally, in this embodiment, in a case where the network device is a wireless network device, the PLMN ID is sent by the wireless network device after receiving the PLMN ID related to the user device sent by the second core network device, or is sent by the wireless network device after determining the PLMN ID of the user device.

That is, the wireless network device (e.g., a base station) may send the PLMN ID to the user device based on the PLMN ID sent by the second core network device for guiding the user device to access the core network of the home operator; the PLMN ID may also be sent to the user equipment based on a PLMN ID determined by the user equipment itself that directs the user equipment to access the core network of the home operator.

Optionally, the PLMN ID sent by the second core network device about the user equipment is: and the second core network equipment determines that the user equipment does not correctly select the shared network and then sends the PLMN ID to the wireless network equipment.

And under the condition that the second core network equipment determines that the user equipment does not select the shared network correctly, the second core network equipment can send indication information to the wireless network equipment, wherein the indication information is used for indicating the wireless network equipment to send PLMN ID to the user.

Optionally, the wireless network device determines the PLMN ID of the user equipment, including:

Wherein the step of the wireless network device determining that the user device did not properly select the shared network comprises: determining the home PLMN ID of the user equipment according to the identity home information of the user equipment; and judging that the user equipment does not correctly select the shared network according to the home PLMN ID of the user equipment.

Also, the identity attribution information of the user equipment includes at least one of: an identity of the user; context information of the user; subscription information of the user. For the 4G system, the identity of the user can be an IMSI; for a 5G system, the identity of the user may be sui, SUPI, etc. The uplink information of the user may be the context information for mobility management (such as what has been registered in which MME/AMF) and is saved by the AMF; the context information for authentication to prove the legitimacy of the user is saved by the HSS/UDM. The subscriber's uplink information includes a home PLMN ID (i.e., home operator PLMN ID) so that the wireless network device can learn the subscriber's home PLMN ID for determining if the user device properly selects the shared network.

Optionally, determining the home PLMN ID of the user equipment according to the identity home information of the user equipment includes: inquiring the home PLMN ID corresponding to the identity home information of the user equipment through the air interface of the wireless network equipment; or, obtaining the home PLMN ID corresponding to the identity home information of the user equipment through the core network element.

In this embodiment, the ue is also able to autonomously select a PLMN ID as a PLMN ID for use in accessing the shared network. Thus, step 101 comprises:

Here, one or more PLMN IDs in the system message may be in the form of a PLMN ID list (list). The user equipment determines whether a home PLMN ID exists in a PLMN ID list by acquiring a system message of a base station, so that the home PLMN ID is selected as the PLMN ID used for accessing the shared network under the condition that the home PLMN ID exists in the PLMN ID list.

Optionally, in this embodiment, the user equipment receives the PLMN ID sent by the network equipment through an AS radio control message, a NAS direct message or an AS/NAS hybrid message.

Optionally, in this embodiment, after step 101, the method further includes:

Thus, the first part of GUAMI of the updated GUTI is the PLMN ID and AMF identifier of the home operator, and can be used for accessing the subsequent shared network.

Thus, the application of the method of the embodiment of the invention is as follows:

scene one,

Step 11, the base station discovers that the selected PLMN ID and the 5G-GUTI selected by the user equipment access are both visited operator PLMN IDs (i.e. plmn#1), so that the visited operator core network is selected for registration. The second core network device discovers or judges that the user equipment does not select the home operator PLMN ID (i.e. plmn#2) to register in the process of registering the user equipment or after the registration is completed. (the discovery or judgment of the user equipment not selecting the home operator PLMN ID is based on the identity home information of the user equipment, and is not described here again)

Step 12, the second core network equipment initiates an AMF reselection process, guides the user equipment to the home operator network AMF, and reinitiates the registration flow.

And step 13, after the first core network equipment and the second core network equipment complete the AMF reselection process, the first core network equipment transmits PLMN ID for guiding the user equipment to access the core network of the home operator to the user equipment. Here, the sending may be implemented by a registration admission message or other related message.

In step 14, the user equipment initiates access using the received PLMN ID. When the RRC connection establishment request message is sent, the PLMN ID (new selected PLMN ID) received by the first core network device and/or the updated 5G-GUTI (updated using the received PLMN ID) may be carried, and the base station completes the core network element selection of the user equipment according to the PLMN ID used by the user equipment for initiating access.

Scene two,

In step 21, the base station discovers that the selected PLMN ID and the 5G-GUTI selected by the user equipment access are both visited operator PLMN IDs (i.e. plmn#1), and thus selects a visited operator core network for registration. The second core network device discovers or judges that the user equipment does not select the home operator PLMN ID (i.e. plmn#2) to register in the process of registering the user equipment or after the registration is completed. (the discovery or judgment of the user equipment not selecting the home operator PLMN ID is based on the identity home information of the user equipment, and is not described here again)

In step 22, the second core network device sends the home operator PLMN ID to the user equipment, or sends the home operator PLMN ID to the user equipment through the base station, as a PLMN ID selected when suggesting that the user equipment establishes an air interface connection next time.

In step 23, the user equipment initiates access using the received PLMN ID. When the RRC connection establishment request message is sent, the PLMN ID (new selected PLMN ID) received by the first core network device and/or the updated 5G-GUTI (updated using the received PLMN ID) may be carried, and the base station completes the core network element selection of the user equipment according to the PLMN ID used by the user equipment for initiating access.

Scene three,

In step 31, the ue accesses to the base station shared by the wireless network, and preferentially selects the PLMN ID of the visited place (i.e. plmn#1) according to the PLMN ID accessed last time, so that the selected PLMN ID reported by the terminal is the PLMN ID of the visited place operator (i.e. plmn#1).

In step 32, the base station compares the PLMN ID of the home operator of the ue (i.e. plmn#2) with the selected PLMN ID reported by the ue access (i.e. plmn#1).

In step 33, the base station sends the PLMN ID of the home operator to the user equipment as a guide for the PLMN ID of the subsequent access network when determining that the PLMN ID of the home operator is not coincident with the reported selected PLMN ID. Specifically, 1) the base station releases the wireless air interface connection of the user equipment, and in the process of releasing the connection, the first preset message (such as an RRC connection release message or other related message) carries the home operator PLMN ID of the user equipment. 2) The base station rejects the wireless air interface connection of the user equipment, and in the process of rejecting the connection, the second preset message (such as an RRC connection establishment rejection message or other related message) carries the home operator PLMN ID of the user equipment. 3) The base station configures or reconfigures the wireless air interface connection of the user equipment, and in the process of configuring or reconfiguring the connection, the third preset message (such as an RRC connection configuration or reconfiguration message or other related message) carries the home operator PLMN ID of the user equipment.

And step 34, the user equipment uses the received PLMN ID to select the PLMN ID to access in the base station shared by the wireless network.

Scene four,

Step 41, the ue reads the system message broadcasted by the base station shared by the wireless network, and obtains the PLMN ID of the PLMN ID list broadcasted in the system message.

In step 42, the ue compares the home PLMN ID with the PLMN IDs in the PLMN ID list, and if the home PLMN ID exists in the PLMN ID list broadcasted by the base station, the ue discards the PLMN ID adopted by the last access network and adopts the home PLMN ID for access.

Step 43, the selected PLMN ID reported when the ue accesses the network is its home PLMN ID.

And step 44, the GUAMI in the 5G-GUTI reported by the user equipment can keep the original GUAMI allocated by the original visiting place network, or the user equipment does not provide the 5G-GUTI.

In step 45, if the base station finds that the PLMN ID of the guim in the 5G-GUTI reported by the user equipment does not match the selected PLMN ID, the selected PLMN ID may be preferentially used to select the core network of the home operator of the terminal for registration. In the home network registration process, the first core network device may acquire context or registration information of the user device from the second core network device. The first core network device may update the 5G-GUTI of the user device, such as by registering with an offer message or other related message.

In summary, the method of the embodiment of the invention is executed by the user equipment, and the user equipment can correctly select the core network of the home operator to serve the user equipment in the scene that the user equipment previously roams into the visited network and performs the startup registration on the base station shared by the core network and then performs the startup registration on the base station shared by the wireless network. Not only avoids extra flow expense settlement, but also is beneficial to guaranteeing the service quality and extracting the operation analysis data of the users aiming at the home operators.

As shown in fig. 2, an access method of a shared network according to an embodiment of the present invention is performed by a network device, and includes:

step 201, a PLMN ID is sent, where the PLMN ID is used to instruct the user equipment to access to the core network of the home operator.

Here, the network device sends the PLMN ID to guide the user device to access the core network of the home operator, so that the user device can correctly select the core network of the home operator to serve the core network.

Optionally, the network device includes at least one of:

the first core network equipment is core network equipment of a home operator;

A wireless network device.

Optionally, the sending PLMN ID includes:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the method further comprises:

Optionally, the sending PLMN ID includes:

Optionally, the wireless network device determines the PLMN ID, including:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the sending PLMN ID includes:

According to the method, the PLMN ID is sent to guide the user equipment to access the core network of the home operator, so that the user equipment can correctly select the core network of the home operator to serve the home operator.

It should be noted that, the method is implemented in cooperation with the above-mentioned access method of the shared network executed by the ue, and the implementation manner of the above-mentioned method embodiment is applicable to the method, so that the same technical effects can be achieved.

As shown in fig. 3, an embodiment of the present invention provides an access device for a shared network, including:

a determining module 310, configured to determine a public land mobile network identifier PLMN ID used by the access sharing network; wherein the PLMN ID is sent by the network device, or the user device autonomously selects; the PLMN ID is used for guiding the user equipment to access a core network of a home operator;

A first sending module 320, configured to initiate an access procedure according to the PLMN ID.

Optionally, the determining module includes:

wherein the network device comprises at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

Optionally, the receiving module is further configured to:

Optionally, the apparatus further comprises:

Optionally, the determining module includes:

a first determining submodule, configured to determine, when a home PLMN ID exists among the PLMN IDs, the home PLMN ID as a PLMN ID used by the access sharing network.

The device can initiate an access process by receiving the PLMN ID sent by the network equipment or the PLMN ID autonomously selected by the user equipment, and taking the PLMN ID used for guiding the user equipment to access the core network of the home operator as the PLMN ID used for accessing the shared network, so that the user equipment can correctly select the core network of the home operator to serve the user equipment.

It should be noted that, the device is the same as the access method of the shared network executed by the ue, and the implementation manner of the embodiment of the method is applicable to the device, so that the same technical effects can be achieved.

As shown in fig. 4, an embodiment of the present invention provides an access device for a shared network, including:

a second sending module 410, configured to send a PLMN ID, where the PLMN ID is used to instruct the user equipment to access to a core network of the home operator.

Of course, the access device of the shared network further comprises a PLMN ID determining module, configured to determine a PLMN ID to be transmitted before transmitting the PLMN ID.

Optionally, the network device includes at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

Optionally, the second sending module is further configured to:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the second sending module is further configured to:

Optionally, the wireless network device determines the PLMN ID, including:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the second sending module is further configured to:

The device sends the home PLMN ID to guide the user equipment to access the core network of the home operator, so that the user equipment can correctly select the core network of the home operator to serve the home operator.

It should be noted that, the device is the same as the access method of the shared network executed by the network device, and the implementation manner of the embodiment of the method is applicable to the device, so that the same technical effects can be achieved.

As shown in fig. 5, a user equipment 500 of an embodiment of the present invention includes a transceiver 510 and a processor 520, wherein,

the processor 520 is configured to: determining a public land mobile network identification (PLMN ID) used by an access shared network; wherein the PLMN ID is sent by the network device, or the user device autonomously selects; the PLMN ID is used for guiding the user equipment to access a core network of a home operator;

the transceiver 510 is configured to: and initiating an access process according to the PLMN ID.

Wherein the network device comprises at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

Optionally, the transceiver is further configured to:

Optionally, the processor is further configured to:

The user equipment of the embodiment can initiate an access process by receiving the PLMN ID sent by the network equipment or the PLMN ID autonomously selected by the user equipment, and taking the PLMN ID used for guiding the user equipment to access the core network of the home operator as the PLMN ID used for accessing the shared network, so that the user equipment can correctly select the core network of the home operator to serve the user equipment.

As shown in fig. 6, a network device 600 according to an embodiment of the present invention includes a transceiver 610, where the transceiver 610 is configured to:

Optionally, the network device includes at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

Optionally, the transceiver is further configured to:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the network device further includes: a processor;

Optionally, the transceiver is further configured to:

Optionally, the wireless network device determines the PLMN ID, including:

Optionally, the identity attribution information includes at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

Optionally, the transceiver is further configured to:

The network device sends the PLMN ID to guide the user device to access the core network of the home operator, so that the user device can correctly select the core network of the home operator to serve the home operator.

A communication device according to another embodiment of the present invention, as shown in fig. 7, includes a transceiver 710, a processor 700, a memory 720, and a program or instructions stored on the memory 720 and executable on the processor 700; the processor 700, when executing the program or instructions, implements the above-described access method for the shared network performed by the user equipment or the network device.

The transceiver 710 is configured to receive and transmit data under the control of the processor 700.

Wherein in fig. 7, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 700 and various circuits of memory represented by memory 720, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a unit for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.

The readable storage medium of the embodiment of the present invention stores a program or an instruction, where the program or the instruction when executed by a processor implements the steps in the method for accessing a shared network performed by a user equipment or a network device as described above, and the same technical effects can be achieved, and for avoiding repetition, a description is omitted herein.

Wherein the processor is a processor in the user equipment or the network equipment described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a magnetic disk or an optical disk.

It is further noted that the user devices described in this specification include, but are not limited to, smartphones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.

In an embodiment of the invention, the modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.

Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices.

Where a module may be implemented in software, taking into account the level of existing hardware technology, a module may be implemented in software, and one skilled in the art may, without regard to cost, build corresponding hardware circuitry, including conventional Very Large Scale Integration (VLSI) circuits or gate arrays, and existing semiconductors such as logic chips, transistors, or other discrete components, to achieve the corresponding functions. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

The exemplary embodiments described above are described with reference to the drawings, many different forms and embodiments are possible without departing from the spirit and teachings of the present invention, and therefore, the present invention should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. In the drawings, the size of the elements and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values includes the upper and lower limits of the range and any subranges therebetween.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

1. An access method for a shared network, performed by a user equipment, comprising:

initiating an access process according to the PLMN ID;

wherein the network device comprises:

and if the network equipment is second core network equipment, the PLMN ID is sent after the second core network equipment determines that the user equipment does not correctly select a shared network.

2. The method of claim 1, wherein determining the public land mobile network identity, PLMN, ID, used by the access sharing network comprises:

Receiving PLMN ID sent by network equipment;

taking the received PLMN ID as the PLMN ID used by the access sharing network;

wherein the network device further comprises at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

3. The method according to claim 2, wherein, in the case that the network device is a first core network device, the PLMN ID is sent by the first core network device after the second core network device determines that the user device does not properly select the shared network, and instructs the user device to complete reselection of the core network device.

4. The method according to claim 2, wherein in case the network device is a wireless network device, the PLMN ID is sent by the wireless network device after receiving the PLMN ID sent by the second core network device with respect to the user device, or after determining the PLMN ID of the user device.

5. The method of claim 2, wherein the receiving the PLMN ID sent by the network device comprises:

6. The method of claim 2, wherein after receiving the PLMN transmitted by the network device, further comprising:

7. The method of claim 1, wherein determining the public land mobile network identity, PLMN, ID, used by the access sharing network comprises:

8. An access method for a shared network, performed by a network device, comprising:

transmitting a PLMN ID used for accessing the shared network, wherein the PLMN ID is used for guiding user equipment to access a core network of a home operator;

wherein the network device comprises:

Wherein the sending the PLMN ID used by the access sharing network includes:

9. The method of claim 8, wherein the network device further comprises at least one of:

the first core network equipment is core network equipment of a home operator;

a wireless network device.

10. The method of claim 9, wherein the transmitting the PLMN ID comprises:

11. The method according to claim 10, wherein the first core network device receiving the indication information sent by the second core network device about the selection of the first core network device by the user device, includes:

12. The method of claim 11, wherein the second core network device determining that the user device selects the first core network device comprises:

13. The method according to claim 8 or 12, wherein the second core network device determining that the user device did not select the shared network correctly comprises:

14. The method of claim 13, wherein the identity attribution information comprises at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

15. The method as recited in claim 10, further comprising:

16. The method as recited in claim 9, further comprising:

17. The method of claim 9, wherein the transmitting the PLMN ID comprises:

18. The method of claim 17, wherein the PLMN ID for the user equipment sent by the second core network device is:

19. The method of claim 17, wherein the wireless network device determining the PLMN ID comprises:

20. The method of claim 19, wherein the wireless network device determining that the user device did not properly select a shared network comprises:

21. The method of claim 20, wherein the identity attribution information comprises at least one of:

an identity of the user;

context information of the user;

subscription information of the user.

22. The method of claim 20, wherein the wireless network device determining the home PLMN ID of the user device based on the identity home information of the user device comprises:

23. The method of claim 8, wherein the transmitting the PLMN ID comprises:

24. An access device for a shared network, comprising:

a determining module, configured to determine a public land mobile network identifier PLMN ID used by the access sharing network; wherein the PLMN ID is sent by the network device or is selected autonomously by the user device; the PLMN ID is used for guiding the user equipment to access a core network of a home operator;

a first sending module, configured to initiate an access procedure according to the PLMN ID;

wherein the network device comprises:

25. An access device for a shared network, the access device being a network appliance, comprising:

a second sending module, configured to send a PLMN ID used by an access shared network, where the PLMN ID is used to instruct a user equipment to access a core network of a home operator;

Wherein the network device comprises:

wherein the sending the PLMN ID used by the access sharing network includes:

26. A user device comprising a transceiver and a processor, wherein,

the transceiver is used for: initiating an access process according to the PLMN ID;

wherein the network device comprises:

27. A network device comprising a transceiver configured to:

wherein the network device comprises:

wherein the sending the PLMN ID used by the access sharing network includes:

28. A communication device, comprising: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the method according to any one of claims 1-7, or the method according to any one of claims 8-23, when executed by the processor.

29. A readable storage medium having stored thereon a program or instructions which when executed by a processor implements the method of access to a shared network according to any of claims 1-7 or the steps of the method of access to a shared network according to any of claims 8-23.