CN113825209A

CN113825209A - Access method, device and equipment of shared network

Info

Publication number: CN113825209A
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: 2021-12-21
Anticipated expiration: 2041-03-01
Also published as: CN113825209B

Abstract

The invention provides an access method, device and equipment of a shared network, and relates to the technical field of communication. The method is performed by a user equipment and comprises the following steps: determining a public land mobile network identifier (PLMN ID) used for accessing a shared network; wherein, the PLMN ID is sent by the network equipment, or the user equipment 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 core network.

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 method often used by the sharing network is wireless network sharing or core network sharing. When wireless Network sharing is adopted, a base station is connected with core networks of a plurality of operators and broadcasts Public Land Mobile Networks (PLMN) of the operators; when core network sharing is adopted, the base station is only connected with the core network of the visited place operator, only the PLMN of the visited place operator is broadcasted, and the core network of the visited place operator allows the user to access.

However, when the terminal roaming in the visited network is first powered on and registered at the base station shared by the core network, and then powered on and registered at the base station shared by the wireless network, the PLMN (i.e. PLMN #1) of the visited operator and the core network of the visited operator (i.e. PLMN #1) are still selected for access, and the core network of the home operator (i.e. PLMN #2) cannot be correctly selected for serving.

Disclosure of Invention

The invention aims to provide an access method, a device and equipment of 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 an access method for a shared network, which is executed by a user equipment, and includes:

determining a public land mobile network identifier (PLMN ID) used for accessing a shared network; wherein, the PLMN ID is sent by the network equipment, or the user equipment 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 a PLMN ID sent by network equipment;

taking the received PLMN ID as a PLMN ID used for accessing a shared 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 the core network equipment of a visited 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 equipment has not correctly selected a shared network, and instructs the user equipment to complete core network device reselection.

Optionally, when the network device is a second core network device, the PLMN ID is sent by the second core network device after determining that the user equipment has not correctly selected a shared network.

Optionally, when the network device is a wireless network device, the PLMN ID is sent by the wireless network device after receiving the PLMN ID of the user equipment sent by the second core network device, or the PLMN ID of the user equipment is determined by the wireless network device and then sent by the wireless network 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 an AS wireless control message, an NAS direct transmission message or an 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 identity (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;

determining a home PLMN ID as a PLMN ID for use by an access sharing network if the home PLMN ID is present in the one or more PLMN IDs.

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

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

Optionally, 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 sending the PLMN ID includes:

and when the network equipment is first core network equipment, after receiving the indication information about the selection of the first core network equipment by the user equipment, which is sent by the second core network equipment, the first core network equipment sends the PLMN ID to the user equipment.

Optionally, the receiving, by the first core network device, the indication information that is sent by the second core network device and is related to the user equipment selecting the first core network device includes:

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

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

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

Optionally, the sending the 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 equipment does not correctly select a 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 comprises at least one of:

the identity of the user;

contextual information of the user;

subscription information of the user.

Optionally, the method further comprises:

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

Optionally, the method further comprises:

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

Optionally, the sending the PLMN ID includes:

when the network device is a wireless network device, the wireless network device sends the PLMN ID to the user equipment after receiving the PLMN ID which is sent by the second core network device and is related to the user equipment; or the like, or, alternatively,

and after determining 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 and related to the user equipment is:

and after determining that the user equipment does not correctly select the shared network, the second core network equipment sends the PLMN ID to the wireless network equipment.

Optionally, the determining, by the wireless network device, the PLMN ID includes:

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

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

the identity of the user;

contextual information of the user;

subscription information of the user.

Optionally, the determining, by the wireless network device, the home PLMN ID of the user equipment according to the identity home information of the user equipment includes:

inquiring attribution PLMN ID of identity attribution information corresponding to the user equipment through an air interface of the wireless network equipment; or

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

Optionally, the sending the PLMN ID includes:

the PLMN ID is sent via an AS radio control message, a NAS direct transfer message, or an AS/NAS hybrid message.

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

a determining module, configured to determine a public land mobile network identifier PLMN ID used for accessing a shared network; wherein, the PLMN ID is sent by the network equipment, or the user equipment 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:

the first receiving submodule is used for receiving the PLMN ID sent by the network equipment;

the first processing submodule is used for taking the received PLMN ID as the 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 identity GUTI according to the received PLMN ID.

Optionally, the determining module includes:

the acquisition submodule is used for acquiring a system message broadcasted by a base station, wherein the system message comprises one or more PLMN IDs;

a first determining sub-module, configured to determine, when 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 the 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 comprises 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 comprises at least one of:

the identity of the user;

contextual information of the user;

subscription information of the user.

Optionally, the second core network device initiates core network device reselection when determining that the user equipment does not correctly select the shared network.

Optionally, the second core network device sends, to the wireless network device, indication information when determining that the user equipment does not correctly select the shared network, where the indication information is used to indicate the wireless network device to send a PLMN ID to the user.

Optionally, the second sending module is further configured to:

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

the identity of the user;

contextual 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, which includes a transceiver and a processor, wherein,

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

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

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

the transceiver is further configured to: taking the received PLMN ID as a PLMN ID used for accessing a 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 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: determining a home PLMN ID as a PLMN ID for use by an access sharing network if the home PLMN ID is present in the one or more PLMN IDs.

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

Optionally, 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 identity attribution information comprises at least one of:

the identity of the user;

contextual information of the user;

subscription information of the user.

Optionally, the network device further includes: a processor;

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

Optionally, the transceiver is further configured to:

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

the identity of the user;

contextual 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 access method of the shared network as described above.

To achieve the above object, an embodiment of the present invention provides a readable storage medium on which a program or instructions are stored, which when executed by a processor implement the steps in the access method of the 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 take the PLMN ID for guiding the user equipment to access the core network of the home operator as the PLMN ID used for accessing the shared network to initiate the access process by receiving the PLMN ID sent by the network equipment or the PLMN ID autonomously selected by the user equipment, thereby ensuring that the user equipment can 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 an access method of a shared network performed by a user equipment according to an embodiment of the present invention;

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

FIG. 3 is a view showing the structure of the apparatus corresponding to FIG. 1;

FIG. 4 is a view showing the structure of the apparatus 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 of the present invention more apparent, the following detailed description is 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 execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

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

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined 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 executed by a user equipment, and includes:

step 101, determining a public land mobile network identifier (PLMN ID) used for accessing a shared network; wherein, the PLMN ID is sent by the network equipment, or the user equipment autonomously selects; the PLMN ID is used for guiding the user equipment to access a core network of a home operator;

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

Thus, according to the

above steps

101 and 102, the user equipment can initiate an access procedure by receiving the PLMN ID sent by the network equipment or the PLMN ID autonomously selected by the user equipment, using the PLMN ID for instructing 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.

The PLMN ID sent by the network device 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 a scenario where the ue roams into the visited network before and performs the power-on registration at the base station shared by the core network, and then performs the power-on registration at the base station shared by the wireless network, it should be understood that, since the ue roams into the visited network before and performs the power-on registration at the base station shared by the core network, the ue performs the power-on registration at the base station shared by the wireless network, and the access sharing network preferentially uses the PLMN ID (e.g., PLMN ID #1) of the visited operator. The user equipment executing the method of the embodiment avoids using the PLMN ID of the visited operator by determining the PLMN ID used for accessing the shared network, performs shared network access based on the PLMN ID which guides the user equipment to access the core network of the home operator, and ensures that the core network of the home operator serves the user equipment.

Optionally, in this embodiment, step 101 includes:

receiving a PLMN ID sent by network equipment;

taking the received PLMN ID as a PLMN ID used for accessing a 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.

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

In this way, when the user equipment accesses the core network of the visited place operator, the second core network equipment can guide the user equipment to access the core network operated by the home place. Here, the first core network device transmits 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, which is sent by the second core network device, the first core network device sends the PLMN ID to the user equipment.

That is to say, 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 sent by the second core network device after determining that the user equipment selects the first core network device and transfers the user equipment to the first core network device.

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

The second core network equipment determines that the user equipment does not correctly select the shared network, and 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: the identity of the user; contextual information of the user; subscription information of the user.

Here, for the 4G system, the identity of the user may be an International Mobile Subscriber Identity (IMSI); for the 5G system, the identity of the user may be a Subscription encrypted Identifier (SUCI), a Subscription Permanent Identifier (SUPI), and so on.

Here, the uplink information of the user may be context information for Mobility Management (such as which Mobility Management Entity (MME) or Access and Mobility Management Function (AMF) has been registered once), which is saved by the AMF; the authenticated context information for proving the validity of the user is stored by a Home Subscriber Server (HSS) or a Unified Data Management entity (UDM). Wherein the uplink information of the user includes a home PLMN ID (i.e. home operator PLMN ID), so that the second core network can know the home PLMN ID of the user for determining whether the user equipment correctly selects the shared network.

Of course, the second core network device initiates core network device reselection, such as AMF reselection, when determining that the user equipment has not correctly selected the shared network.

In addition, optionally, in this embodiment, when the network device is a second core network device, the PLMN ID is sent after the second core network device determines that the user equipment has not correctly selected a shared network.

That is, after determining that the user equipment does not correctly select the shared network, the second core network device can directly send the PLMN ID instructing the user equipment to access the core network of the home operator to the user equipment.

Here, the second core network device determines that the user equipment does not correctly select the shared network, and also 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 comprises at least one of: the identity of the user; contextual information of the user; subscription information of the user. For the 4G system, the identity of the user may be an IMSI; for a 5G system, the identity of the user may be SUCI, SUPI, etc. The uplink information of the user may be context information for mobility management (such as which MME/AMF has been registered), which is saved by the AMF; the context information of the authentication, which is used to prove the legitimacy of the user, is kept by the HSS/UDM. The uplink information of the user includes a home PLMN ID (i.e. home operator PLMN ID) so that the second core network can be aware of the user's home PLMN ID for determining whether the user equipment correctly selects the shared network.

Furthermore, optionally, in this embodiment, when the network device is a wireless network device, the PLMN ID is sent by the wireless network device after receiving the PLMN ID of the user equipment sent by the second core network device, or the PLMN ID of the user equipment is determined by the wireless network device and then sent by the wireless network device.

That is, the radio network device (e.g., base station) may send the PLMN ID to the user equipment based on the PLMN ID sent by the second core network device for instructing the user equipment 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 to instruct the user equipment to access the core network of the home operator.

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

The second core network device may send indication information to the wireless network device when determining that the user equipment does not correctly select the shared network, where the indication information is used to indicate the wireless network device to send a PLMN ID to the user.

Optionally, the determining, by the wireless network device, the PLMN ID of the user equipment includes:

Wherein the step of the wireless network device determining that the user equipment has not correctly selected a 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 a shared network according to the home PLMN ID of the user equipment.

Also, the identity attribution information of the user equipment comprises at least one of: the identity of the user; contextual information of the user; subscription information of the user. For the 4G system, the identity of the user may be an IMSI; for a 5G system, the identity of the user may be SUCI, SUPI, etc. The uplink information of the user may be context information for mobility management (such as which MME/AMF has been registered), which is saved by the AMF; the context information of the authentication, which is used to prove the legitimacy of the user, is kept by the HSS/UDM. The uplink information for the user includes a home PLMN ID (i.e., home operator PLMN ID) so that the wireless network device can be made aware of the user's home PLMN ID for determining whether the user device correctly 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 attribution PLMN ID of identity attribution information corresponding to the user equipment through an air interface of the wireless network equipment; or, acquiring a home PLMN ID corresponding to the identity home information of the user equipment through a core network element.

In this embodiment, the user equipment may further use an autonomously selected PLMN ID as the PLMN ID used for accessing the shared network. Thus, step 101, comprises:

Here, the 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 the home PLMN ID exists in the PLMN ID list of the base station by acquiring the system message of the 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 device through an AS radio control message, an NAS direct transfer message, or an AS/NAS hybrid message.

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

In this way, the updated first part GUAMI of the GUTI is the home operator PLMN ID and the AMF identifier, and can be used for subsequent access to the shared network.

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

scene one,

Step 11, the base station finds that the selected PLMN ID and the selected 5G-GUTI accessed by the ue 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 finds or judges that the user equipment does not select the home operator PLMN ID (i.e., PLMN #2) to register in the user equipment registration process or after the registration is completed. (finding or determining that the PLMN ID of the user equipment does not select the home operator is achieved based on the identity home information of the user equipment and will not be described herein)

And step 12, the second core network equipment initiates an AMF reselection process, guides the user equipment to the home operator network AMF, and initiates a registration process again.

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

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

Scene two,

Step 21, the base station finds that the selected PLMN ID and the selected 5G-GUTI accessed by the ue 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 finds or judges that the user equipment does not select the home operator PLMN ID (i.e., PLMN #2) to register in the user equipment registration process or after the registration is completed. (finding or determining that the PLMN ID of the user equipment does not select the home operator is achieved based on the identity home information of the user equipment and will not be described herein)

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 the PLMN ID selected when the user equipment is suggested to establish an air interface connection next time.

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

Scene three,

Step 31, the user equipment accesses the base station shared by the wireless network, and preferentially selects the visited PLMN ID (i.e. PLMN #1) according to the last accessed PLMN ID, so that the selected PLMN ID reported by the terminal is the PLMN ID (i.e. PLMN #1) of the visited operator.

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

And step 33, when determining that the PLMN ID of the home operator does not coincide with the reported selected PLMN ID, the base station sends the home operator PLMN ID to the user equipment as a guidance for a PLMN ID of a subsequent access network. Specifically, 1) the base station releases the radio air interface connection of the user equipment, and in the process of releasing the connection, a first preset message (such as an RRC connection release message or other related messages) carries a 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, a second preset message (such as an RRC connection establishment rejection message or other related messages) carries the PLMN ID of the home operator 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, a third preset message (such as an RRC connection configuration or reconfiguration message or other related messages) 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 user equipment reads the system message broadcasted by the base station shared by the wireless network, and acquires the PLMN ID of the PLMN ID list broadcasted in the system message.

And 42, comparing the home PLMN ID with the PLMN ID in the PLMN ID list by the user equipment, and if the home PLMN ID exists in the PLMN ID list broadcast by the base station, abandoning the PLMN ID adopted by the access network last time and adopting the home PLMN ID for access by the user equipment.

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

Step 44, the GUAMI in the 5G-GUTI reported by the ue can continue to maintain the original GUAMI allocated by the original visited network, or the ue does not provide the 5G-GUTI.

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

To sum up, the method of the embodiment of the present invention is executed by the user equipment, and can enable the user equipment to correctly select the core network of the home operator to serve the user equipment in a scenario 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 settlement of flow charge, but also is beneficial to the service quality guarantee and the operation analysis data extraction of the user aiming at the home operator.

As shown in fig. 2, an access method of a shared network according to an embodiment of the present invention is executed 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 a core network of a home operator.

Here, the network device sends the PLMN ID to instruct 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.

Optionally, 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 sending the PLMN ID includes:

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

the identity of the user;

contextual information of the user;

subscription information of the user.

Optionally, the method further comprises:

Optionally, the sending the PLMN ID includes:

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

the identity of the user;

contextual information of the user;

subscription information of the user.

Optionally, the sending the PLMN ID includes:

The method sends the PLMN ID to guide the user equipment to access the core network of the home operator, thereby enabling the user equipment to correctly select the core network of the home operator to serve the user equipment.

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

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

a determining module 310, configured to determine a public land mobile network identity PLMN ID used for accessing the shared network; wherein, the PLMN ID is sent by the network equipment, or the user equipment 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 sub-module, configured to determine, when a home PLMN ID exists among the multiple PLMN IDs, the home PLMN ID as a PLMN ID used by the access sharing network.

The device can take 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 to initiate the access process by receiving the PLMN ID sent by the network equipment or the PLMN ID autonomously selected by the user equipment, thereby enabling the user equipment to correctly select the core network of the home operator to serve the user equipment.

It should be noted that the apparatus is the access method to which the shared network executed by the user equipment is applied, and the implementation manner of the embodiment of the method is applied to the apparatus, and the same technical effect can be achieved.

As shown in fig. 4, an embodiment of the present invention provides an access apparatus for sharing a 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 the core network of the home operator.

Certainly, the access apparatus for sharing a network further includes a PLMN ID determining module, configured to determine a PLMN ID to be sent before sending the PLMN ID.

Optionally, 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 second sending module is further configured to:

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

the identity of the user;

contextual information of the user;

subscription information of the user.

Optionally, the second sending module is further configured to:

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

the identity of the user;

contextual 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, thereby enabling the user equipment to correctly select the core network of the home operator to serve the user equipment.

It should be noted that the apparatus is the access method to which the shared network executed by the network device is applied, and the implementation manner of the embodiment of the method is applied to the apparatus, and the same technical effect can be achieved.

As shown in fig. 5, a user equipment 500 according to 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 identifier (PLMN ID) used for accessing a shared network; wherein, the PLMN ID is sent by the network equipment, or the user equipment 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 this embodiment can initiate an access procedure by using the PLMN ID for instructing the user equipment to access the core network of the home operator as the PLMN ID used for accessing the shared network by receiving the PLMN ID sent by the network equipment or the PLMN ID autonomously selected by the user equipment, 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 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 identity attribution information comprises at least one of:

the identity of the user;

contextual 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 identity attribution information comprises at least one of:

the identity of the user;

contextual information of the user;

subscription information of the user.

Optionally, the transceiver is further configured to:

The network equipment sends the PLMN ID to guide the user equipment to access to 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 user equipment.

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 in the memory 720 and executable on the processor 700; the processor 700, when executing the program or the instructions, implements the above-described access method of the shared network performed by the user equipment or the network equipment.

The transceiver 710 is used for receiving and transmitting data under the control of the processor 700.

Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a receiver that provide a means 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 thereon, and the program or the instruction, when executed by the processor, implements the steps in the method for accessing to a shared network, which is executed by the user equipment or the network equipment, as described above, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Wherein, the processor is a processor in the user equipment or the network equipment in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a 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, smart phones, tablets, etc., and that many of the features described are referred to as modules in order to more particularly emphasize their implementation independence.

In embodiments of the present invention, 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 constructed 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 the 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, and may exist, at least partially, merely as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. 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, and many different forms and embodiments of the invention may be made without departing from the spirit and teaching of the invention, therefore, the invention is not to 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 fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of elements 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, when stated, includes the upper and lower limits of the range and any subranges therebetween.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

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

and initiating an access process according to the PLMN ID.

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

receiving a PLMN ID sent by network equipment;

taking the received PLMN ID as a PLMN ID used for accessing a 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.

3. The method of claim 2, wherein the PLMN ID is sent by the first core network device after the second core network device determines that the user equipment has not correctly selected a shared network and instructs the user equipment to complete core network device reselection, when the network device is the first core network device.

4. The method of claim 2, wherein the PLMN ID is sent after the second core network device determines that the user equipment has not correctly selected a shared network, if the network device is the second core network device.

5. The method of claim 2, wherein the PLMN ID is sent by the wireless network device after receiving the PLMN ID sent by the second core network device and related to the user equipment, or the PLMN ID of the user equipment is determined by the wireless network device, in case that the network device is a wireless network device.

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

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

8. The method of claim 1, wherein determining the PLMN ID used by the access sharing network comprises:

9. An access method of a shared network, performed by a network device, comprising:

10. The method of claim 9, 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.

11. The method of claim 10, wherein the sending the PLMN ID comprises:

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

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

14. The method of claim 10, wherein the sending the PLMN ID comprises:

15. The method according to claim 13 or 14, wherein the determining, by the second core network device, that the user equipment has not correctly selected a shared network comprises:

16. The method of claim 15, wherein the identity attribution information comprises at least one of:

the identity of the user;

contextual information of the user;

subscription information of the user.

17. The method of claim 11, further comprising:

18. The method of claim 10, further comprising:

19. The method of claim 10, wherein the sending the PLMN ID comprises:

20. The method of claim 19, wherein the PLMN ID sent by the second core network device for the ue is:

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

22. The method of claim 21, wherein the determining, by the wireless network device, that the user equipment has not correctly selected a shared network comprises:

23. The method of claim 22, wherein the identity attribution information comprises at least one of:

the identity of the user;

contextual information of the user;

subscription information of the user.

24. The method of claim 22, wherein the determining, by the wireless network device, the home PLMN ID of the user equipment according to the identity homing information of the user equipment comprises:

25. The method of claim 9, wherein the sending the PLMN ID comprises:

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

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

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

28. A user equipment comprising a transceiver and a processor, wherein,

29. A network device, comprising a transceiver to:

30. A communication device, comprising: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; wherein the program or instructions when executed by the processor implement a method of accessing a shared network as claimed in any one of claims 1 to 8 or a method of accessing a shared network as claimed in any one of claims 9 to 25.

31. A readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the method of accessing a shared network according to any one of claims 1-8 or the steps in the method of accessing a shared network according to any one of claims 9-25.