CN113498145B

CN113498145B - Information transmission method, device and network entity

Info

Publication number: CN113498145B
Application number: CN202010270480.9A
Authority: CN
Inventors: 王睿炜; 刘爱娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2022-09-23
Anticipated expiration: 2040-04-08
Also published as: CN113498145A

Abstract

The embodiment of the invention provides an information transmission method, an information transmission device and a network entity, wherein the method comprises the following steps: sending an interface message to a second network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network-based private network PNI-NPN access mode. The embodiment of the invention reduces the number of message interaction between the interfaces.

Description

Information transmission method, device and network entity

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information transmission method, an information transmission apparatus, and a network entity.

Background

In actual network deployment, a scenario may exist where a private network and a public network are deployed in the same base station, at this time, the public network and the private network use different logical cell IDs for identification, and one physical cell may correspond to many logical cell IDs.

In addition, each base station needs to notify the configuration situation of the base station cell to the neighboring base station cells so as to select the mobility target cell. Similarly, under the Distributed base station architecture, cell configuration information is also exchanged between a 5G Control Plane Central node (gNB-Central Unit-Control Plane, gNB-CU-CP), a 5G User Plane Central node (gNB-Central Unit-User Plane, gNB-CU-UP) and a 5G Distributed node (gNB-Distributed Unit, gNB-DU).

However, in the existing interface design, the configuration information of the interactive cell is interacted by taking the logical cell ID as a unit, and if the number of the logical cell IDs is large, a large number of messages need to be sent during the interface interaction, which increases the burden of the interface.

Disclosure of Invention

The embodiment of the invention provides an information transmission method, an information transmission device and a network entity, which are used for reducing the number of interaction between interfaces.

The embodiment of the invention provides an information transmission method, which is applied to a first network entity and comprises the following steps:

sending an interface message to a second network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network-based private network PNI-NPN access mode.

The embodiment of the invention provides an information transmission method, which is applied to a second network entity and comprises the following steps:

receiving an interface message sent by a first network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network-based private network PNI-NPN access mode.

An embodiment of the present invention provides an information transmission apparatus, applied to a first network entity, including:

the sending module is used for sending an interface message to a second network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under a first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network deployed private network PNI-NPN access mode based on a public network.

An embodiment of the present invention provides an information transmission apparatus, applied to a second network entity, including:

the receiving module is configured to receive an interface message sent by a first network entity, where the interface message includes logical cell identifiers of at least two logical cells in the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode, or a public land mobile network deployed private network PNI-NPN access mode based on a public network.

An embodiment of the present invention provides a first network entity, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method applied to the first network entity when executing the program.

An embodiment of the present invention provides a second network entity, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method applied to the second network entity when executing the program.

An embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the information transmission method.

In the information transmission method, the apparatus, and the network entity provided in the embodiments of the present invention, an interface message sent to a second network entity includes logical cell identifiers of at least two logical cells under a first network entity and a network access mode corresponding to each logical cell identifier, that is, the at least two logical cell identifiers and the network access mode corresponding to each logical cell identifier are transmitted in an interface at a time, so that the first network entity and the second network entity can implement interaction of cell configuration information through one or less interface messages after a network is used.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a flowchart illustrating steps of an information transmission method applied to a first network entity according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating steps of an information transmission method applied to a second network entity according to an embodiment of the present invention;

fig. 3 is a block diagram of an information transmission apparatus applied to a first network entity in an embodiment of the present invention;

fig. 4 is a block diagram of an information transmission apparatus applied to a second network entity in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first network entity in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second network entity in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to facilitate clear description of technical solutions of the embodiments of the present invention, in each embodiment of the present invention, if words such as "first" and "second" are used to distinguish identical items or similar items with substantially identical functions and actions, a person skilled in the art may understand that words such as "first" and "second" do not limit the quantity and execution order.

The 3GPP R16 protocol version introduces private Network (NPN) characteristics, and includes 2 deployment modes, a Stand-alone Non-Public Network (SNPN) deployed independently, and a Public Land Mobile Network (PLMN) Network-based private Network (Public Land Mobile Network-Integrated PNI-NPN) deployed based on a Public Network.

The SNPN Network is identified using a PLMN and Network Identifier (NID) combination, and the PLMN may be an independent PLMN or may be shared with PLMNs of a public Network. The PLMN + NID is broadcasted in the cell, the terminal selects the supported network to access, and the network side also detects the access of the terminal. The PLMN + NID will also be passed to the neighboring cells over the Xn interface to facilitate selection of the appropriate target network access at handover.

The PNI-NPN network may be implemented by adopting technical means such as slicing, but slicing cannot prevent the terminal from initially accessing the network, so that Access control is performed by adopting a method of a Closed Access Group (CAG) mechanism, and only a user authorized to Access a CAG cell can normally Access the network. There is a unique CAG ID under the PLMN to identify the CAG. For the base station, each cell may broadcast whether only terminals of the CAG can access or all terminals can access. If the cell supports CAG, the supported PLMN and the relevant CAG ID need to be broadcasted in the broadcast, and the terminal selects a proper cell to reside according to the CAG ID list supported by the terminal in the processes of cell selection and reselection. The PLMN and CAG ID lists supported by the cell also need to be sent to the neighbouring cells over the Xn interface in order to select the appropriate target network access at handover.

In a cell broadcast System Information Block 1 (SIB 1), PLMN Information content about a public network is a PLMN identification Information LIST (PLMN ID INFO LIST), and each node in the LIST includes a logical cell ID and corresponding PLMN Information; the PLMN information content about the private network is a private network identification information LIST (NPNID INFO LIST), and each node in the LIST includes a logical cell ID and corresponding PLMN + NID or PLMN + CAG information. Wherein the different network modes SNPN and PNI-NPN cannot use the same logical cell ID, but the same PLMN can be used between the different network modes.

In addition, the Xn interface configuration transfer can be realized through an Xn establishment process and a 5G Radio Access Network (NR-RAN) node configuration update process. The Xn interface establishing process comprises the following steps: the NG-RAN node 1 sends an Xn establishment request message to the NG-RAN node 2, the message carries configuration information of the NG-RAN node 1, the NG-RAN node 2 replies an Xn establishment response message, and the message carries the configuration information of the NG-RAN node 2. After the Xn interface is established, updating the configuration may use a NG-RAN node configuration update procedure, which includes: the NG-RAN node 1 sends a configuration updating message to the NG-RAN node 2, the configuration updating message carries configuration information of the NG-RAN node 1, the NG-RAN node 2 replies a configuration updating response message, and the configuration information of the NG-RAN node 2 is carried in the message.

Specifically, the 4 messages all include a New Radio (NR) serving cell information list, and the main contents of each cell are as follows: NR-Physical Cell Identifier (NR-PCI), representing a Physical Cell ID; NR-Cell Global Identifier (NR-CGI) comprising a PLMN ID, a base station ID and a logical Cell ID; broadcast PLMNID information LIST (Broadcast PLMNID INFO LIST NR), correspond to the empty port and Broadcast the PLMN content, correspond to SIB1, represent PLMN information under the node of this physical cell; and the NPNID INFO corresponds to the private network ID information of the CGI cell and comprises an SNPN information list or a PNI-NPN information list, wherein each node of the SNPN information list is PLMN + NID, and each node of the PNI-NPN information list is PLMN + CAG ID. The Broadcast plmn id INFO LIST NR includes information of the public network and the private network under the node, and includes: broadcast PLMNID INFO LIST NR, the tabulation includes the node number is 12 at most; broadcast PLMNs list as public network PLMN information list; PLMN Identity (PLMN Identity, PLMN ID); tracking Area identity (TAC); logical Cell id (nr Cell identity); radio access network Area identification (RAN Area Code, RANAC); private network NPN information list (Broadcast NPN list); network ID information, including PLMN + NID or PLMN + CAG information.

In addition, in the R16 protocol version private network feature, different network modes need to correspond to different logical cell IDs in network sharing, that is, different logical cell IDs are needed for public PLMN/SNPN/PNI-NPN, and in the case of network sharing, one physical cell may include multiple logical cell IDs.

In the distributed base station, the gNB-CU and the gNB-DU are connected through an F1 interface, and the gNB-CU-CP and the gNB-CU-UP are connected through an E1 interface.

On the F1 interface, the gNB-DU triggers a F1 configuration REQUEST message (F1 SETUP REQUEST) to send on-DU cell configuration information to the CU, and the CU replies with a F1 configuration RESPONSE message (F1 SETUP RESPONSE). Similarly, a CONFIGURATION UPDATE process also exists in the F1 interface, and information such as cell CONFIGURATION on the DU can be updated, that is, the gNB-DU sends a gNB-DU CONFIGURATION UPDATE message (gNB-DU CONFIGURATION UPDATE) to the gNB-CU, and the gNB-CU feeds back a CONFIGURATION UPDATE response message (gNB-DU CONFIGURATION UPDATE ACKNOWLEDGE) to the gNB-DU. The F1SETUP REQUEST message and GNB-DU CONFIGURATION UPDATE message on the F1 interface both contain cell information, and the main content is similar to the NR serving cell information list on the Xn interface, and roughly includes the following: NR-PCI, representing a physical cell ID; NR-CGI including PLMN ID, base station ID and logical cell ID; a Served PLMNs list indicating at most 6 pieces of PLMN information corresponding to the CGI; extended Served PLMNs List, which represents PLMN information corresponding to the CGI, and if more than 6, represents in Extended; broadcast PLMN id INFO LIST NR, corresponding to air interface Broadcast PLMN content, and SIB1, corresponding to representing PLMN information in the physical cell node. The contents of the Served PLMNs List and the Extended Served PLMNs List are the same, and the contents roughly comprise the following contents: (extended) Served, representing a PLMN list, the length of the list being 6 at maximum; PLMNs list; PLMN Identity indicates PLMN ID information.

For the E1 interface, the cell PLMN information of gNB-CU-UP is contained in the GNB-CU-UP E1SETUP REQUEST, GNB-CU-CP E1SETUP RESPONSE and GNB-CU-UP CONFIGURATION UPDATE messages, and needs to be sent to gNB-CU-CP, which roughly includes the following contents: supported PLMNs list, which represents the supported PLMN information list, the length of the list is 12 at most; a PLMN Identity representing PLMN ID information; an NR CGI Support List representing supported CGI List information; the NPN Support Information indicates supported NPN Information. Of course, the NPN Support Information includes an SNPN Information list or a PNI-NPN Information list, each node of the SNPN Information list is a PLMN + NID, and each node of the PNI-NPN Information list is a PLMN + CAG ID.

Based on the above description, the establishment request/response message and the NG-RAN configuration update/response message on the Xn/F1/E1 interface are both organized based on the NR CGI, and in the case of network sharing, one physical cell may contain multiple CGIs, which would result in an increase in the number of Xn/F1/E1 interface interaction messages and increase the interface burden if the Xn/F1/E1 interface is established and exchanged between each CGI.

In order to reduce the number of interactive messages and improve the efficiency, the invention provides the following embodiments:

as shown in fig. 1, a flowchart of steps of an information transmission method applied to a first network entity in the embodiment of the present invention is shown, where the method includes the following steps:

step 101: the interface message is sent to a second network entity.

Specifically, the first network entity may send an interface message to the second network entity, where the interface message includes logical cell identifiers of at least two logical cells in the first network entity and a network access mode corresponding to each logical cell identifier.

Specifically, the network access mode is a public network access mode, an SNPN access mode or a PNI-NPN access mode.

Preferably, the at least two logical cells are all logical cells corresponding to one physical cell, that is, the interface message includes logical cell identifiers of all logical cells corresponding to the physical cell and a network access mode corresponding to each logical cell identifier, so that the logical cell identifiers of all logical cells and the network access mode corresponding to each logical cell identifier can be transmitted in the interface at one time, and interface signaling is reduced compared with the prior art in which a small amount of logical cell information is transmitted in one interface message.

Further, the interface message may be an interface setup request message or an interface configuration update message.

In this way, one interface message sent to the second network entity contains the logical cell identifiers of at least two logical cells under the first network entity and the network access mode corresponding to each logical cell identifier, that is, the multiple logical cell identifiers and the network access mode corresponding to each logical cell identifier are transmitted in the interface at one time, so that the first network entity and the second network entity can realize the interaction of cell configuration information through one or less interface messages.

Of course, in this embodiment, after sending the interface message to the second network entity, the first network entity may further receive an interface response message fed back by the second network entity based on the interface message; the interface response message includes logical cell identifiers of at least two logical cells under the second network entity and a network access mode corresponding to each logical cell identifier.

In addition, when the interface message is an interface establishment request message, the interface response message is a corresponding interface establishment response message; and when the interface message is an interface configuration updating message, the interface response message is a corresponding interface configuration updating response message.

It should be further noted that, at least two logical cells are all logical cells corresponding to one physical cell, that is, all logical cell identifiers and the network access mode corresponding to each logical cell identifier are transmitted at a time through one interface response message, which reduces signaling interaction between interfaces compared to the prior art in which the interface response message only includes part of logical cell identifier information.

In the following, how to include the logical cell identifiers of the at least two logical cells and the network access mode corresponding to each logical cell identifier in the interface message, and how to include the logical cell identifiers of the at least two logical cells and the network access mode corresponding to each logical cell identifier in the interface response message in this embodiment are specifically described.

First, for the case where the interface is an Xn interface or an F1 interface:

first, when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface, the message corresponding to the Xn interface or the F1 interface includes an NR serving cell information list, the NR serving cell information list includes a physical cell identifier and a first PLMN information list corresponding to the physical cell identifier, and the first PLMN information list includes a private network information list corresponding to the physical cell identifier;

if the node type of the private network node in the private network information list is SNPN, the private network node comprises any one or combination of the following information: SNPN identification; TAC, logical cell identity and RANAC;

if the node type of the private network node in the private network information list is PNI-NPN, the private network node comprises any one or combination of the following information: PNI-NPN identification, TAC, logical cell identification, RAN area identification, and RANAC.

Of course, the messages corresponding to the Xn interface include Xn interface messages and Xn interface response messages, and the messages corresponding to the F1 interface include F1 interface messages and F1 interface response messages.

Specifically, the first PLMN information LIST is Broadcast PLMN id INFO LIST NR. The first PLMN information list in the NR serving cell information lists corresponding to the Xn interface and the F1 interface is described below by using the following table.

The same content-containing parts in the NR serving cell information lists corresponding to the Xn interface and the F1 interface may be as shown in table 1 below:

TABLE 1

At this time, for each private network node in the private network information list, if the node type is SNPN, the content included in the private network node may be at least one of the following list 2:

TABLE 2

IE name	Description of the invention
		SNPN identification (SNPN-Identity)	PLMN+NID
TAC	Tracking Area label (Tracking Area CODE)
		NR Cell Identity	Logical cell identification
RANAC	Radio access network Area identification (RAN Area Code)

In addition, for each private network node in the private network information list, if the node type is PNI-NPN, the content included in the private network node may be at least one of the following list 3:

TABLE 3

Thus, when the interface message is an Xn interface message or an F1 interface message, the interface message and the interface response message include the NR serving cell information LIST, the first PLMN information LIST included in the NR serving cell information LIST, that is, the Broadcast PLMN id INFO LIST NR, includes the private network information LIST corresponding to the physical cell identifier, and the private network information LIST includes information distinguished based on the node type, that is, based on the network access mode, so that the logical cell identifiers of a plurality of or all logical cells corresponding to one physical cell identifier and the network access mode corresponding to each logical cell identifier can be obtained through the private network information LIST included in the interface message and/or the interface message, thereby greatly reducing the number of interface message interactions after the private network is introduced.

When the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface, the message corresponding to the Xn interface or the F1 interface includes an NR serving cell information list, the NR serving cell information list includes a physical cell identifier and a first PLMN information list corresponding to the physical cell identifier, and the first PLMN information list includes the number of nodes corresponding to the physical cell identifier, a network access mode of each node, and a logical cell identifier corresponding to each node;

when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface, the maximum value of the number of nodes is the sum of the maximum logical cell number of the public network supported by the physical cell, the maximum logical cell number of the SNPN, and the maximum logical cell number of the PNI-NPN.

That is, although the prior art adds NPN information in the first PLMN information LIST (Broadcast PLMN id INFO LIST) structure to support private networks, it is not considered that different access modes of NPN also require the use of separate logical cell identities and the logical cell identities cannot be used in combination with the public network, which will result in an increase in the LIST length of the original first PLMN information LIST. In this case, the maximum value of the number of nodes included in the first PLMN information list may be set to a sum of the maximum logical cell number of the public network, the maximum logical cell number of SNPN, and the maximum logical cell number of PNI-NPN.

For example, the original first PLMN information list includes 12 nodes at most, and after adding the private network information, the maximum number needs to be expanded. The maximum value needs to be consistent with the air interface broadcast, and the maximum value of the number of the nodes is equal to the sum of the maximum logical cell number (for example, 12) of the public network supported by the physical cell, the maximum logical cell number (for example, 12) of the SNPN, and the maximum logical cell number (for example, 12) of the PNI-NPN.

At this time, the structure of the first PLMN information list is as shown in table 4 below:

TABLE 4

Therefore, the first PLMN information list comprises all public network and private network information supported by the physical cell, so that the interface message comprises the logical cell identifications of a plurality of or all logical cells and the network access mode corresponding to each logical cell identification, and the interface message is sent to the adjacent base station through an Xn interface message or an F1 interface message process, thereby reducing the number of interface message interaction among the base stations.

Second, for the case where the interface is the F1 interface:

when the interface message and/or the interface response message is a message corresponding to the F1 interface, the message corresponding to the F1 interface includes an NR serving cell information list, and the NR serving cell information list includes an NR CGI, a second PLMN information list corresponding to the NR CGI, and a third PLMN information list corresponding to the NR CGI;

the second PLMN information list and/or the third PLMN information list comprise public network information and private network information, and the private network information is SNPN network information and/or PNI-NPN network information.

Specifically, the message corresponding to the F1 interface may be an F1 interface establishment request message, an F1 interface configuration update message, an F1 interface establishment response message, or an F1 interface configuration update response message.

In addition, the second PLMN information List may be a Served PLMNs List, and the third PLMN information List is an Extended Served PLMNs List, both representing PLMN information corresponding to the CGI, that is, the third PLMN information List is an Extended information List of the second PLMN information List; in this embodiment, the second PLMN information list and/or the third PLMN information list include public network information and NPN network information, and at this time, based on that both the second PLMN information list and the PLMN information list correspond to the NR CGI, each logical cell identifier and the network access mode corresponding to each logical cell identifier can be obtained through the NR serving cell information list.

Of course, the NPN information is SNPN network information and/or PNI-NPN network information, the SNPN network information is a combination of PLMN/NID, and the PNI-NPN network information is a combination of PLMN/CAG.

Specifically, a content format of the NR serving cell information list corresponding to the F1 interface may be as shown in table 5 below:

TABLE 5

At this time, the contents contained in the second PLMN information list or the third PLMN information list are as shown in table 6 below:

TABLE 6

In this way, by adding NPN information in the second PLMN information list and/or the third PLMN information list, a plurality of logical cell identifiers and a network access mode corresponding to each logical cell identifier under a physical cell can be obtained through the NR serving cell information list, thereby avoiding a problem in the prior art that all logical cell identifiers and corresponding network access modes cannot be completely transferred in one NR serving cell information list transfer process due to the fact that different access modes of a private network need to use a separate logical cell identifier and cannot mix the logical cell identifier with a public network when a private network is introduced, and enabling all logical cell identifiers and corresponding network access modes to be transferred in one interface message.

In addition, on the basis of the above embodiment, the number of nodes in the second PLMN information list and/or the third PLMN information list is a sum of the maximum number of public network PLMNs and the maximum number of private network PLMNs supported by one physical cell.

That is, when NPN network information is added to the Served PLMNs List and/or Extended Served PLMNs List, the length of the List needs to be increased when the Served PLMNs List and/or Extended Served PLMNs List contains both public network and private network information, that is, the length of the second PLMN information List and/or the third PLMN information List is equal to the sum of the maximum number of public network PLMNs supported by one physical cell and the maximum number of NPN of the private network.

Third, for the case where the interface is the E1 interface:

firstly, when the interface message and/or the interface response message is a message corresponding to an E1 interface, the message corresponding to the E1 interface includes an NR serving cell information list, the NR serving cell information list includes a fourth PLMN information list of the gNB-CU-UP, and the fourth PLMN information list includes a supported private network information list;

if the node type of the private network node in the private network information list is SNPN, the private network node includes any one or a combination of the following information: SNPN identification, TAC, logic cell identification and RANAC;

Specifically, the message corresponding to the E1 interface may be an E1 interface establishment request message, an E1 interface configuration update message, an E1 interface establishment response message, or an E1 interface configuration update response message.

Specifically, for the NR serving cell information list, the fourth PLMN information list may be supported PLMNs list.

In addition, one content format of the NR serving cell information list corresponding to the E1 interface may be as shown in table 7 below:

TABLE 7

IE name	Description of the invention
		supported PLMNs list	Supported PLMN information list
PLMN Identity	PLMN ID information
		NR CGI Support List	Supported CGI list information
NPN Support Information	NPN information supported

In this embodiment, in order to effectively transmit the private network Information, the content of the private network Information list, that is, the NPN Support Information, may be extended, and Information such as a logical cell identifier may be added. Specifically, the node types of the private network nodes in the private network information list may be distinguished for content expansion, which may specifically refer to table 2 and table 3, and are not described herein again.

In this way, by including the NR serving cell information list in the interface message and adding information such as a logical cell identifier to the private network information list supported by the fourth PLMN information list in the NR serving cell information list, the logical cell identifier and the network access mode corresponding to each logical cell identifier can be obtained through the NR serving cell information list.

Secondly, when the interface message and/or the interface response message is a message corresponding to the E1 interface, the message corresponding to the E1 interface contains an NR serving cell information list, and the NR serving cell information list contains a fourth PLMN information list of the gNB-CU-UP;

and the maximum value of the number of the nodes in the fourth PLMN information list is the sum of the maximum number of public network PLMNs and the maximum number of private network PLMNs supported by the gNB-CU-UP.

After the private network information is introduced, the maximum value of the number of nodes in the fourth PLMN information list needs to be expanded, the original list contains 12 nodes at most, and the maximum value of the number of the nodes is the sum of the maximum number of public network PLMNs and the maximum number of private network PLMNs supported by gNB-CU-UP, so that all the supported public network information and private network information can be transmitted in the process of transmitting the interface information at one time, and the number of message interaction between the interfaces is reduced.

In addition, it should be further noted herein that when the interface message is a message corresponding to an Xn interface, both the first network entity and the second network entity may be base stations; when the interface message is a message corresponding to an F1 interface, the first network entity may be a gNB-DU, and the second network entity may be a gNB-CU; when the interface message is a message corresponding to the E1 interface, the first network entity may be a gNB-CU-CP, and the second network entity may be a gNB-CU-UP.

In this way, in this embodiment, by including at least two logical cell identifiers and a network access mode corresponding to each logical cell identifier in a primary interface message, a situation that interface resources are wasted if too many messages may exist when a physical cell performs interaction between network nodes according to a logical cell in a public network and private network sharing mode, is solved, and the number of message interactions is reduced.

In addition, as shown in fig. 2, a flowchart of steps of an information transmission method applied to a second network entity in the embodiment of the present invention is shown, where the method includes the following steps:

step 201: and receiving the interface message sent by the first network entity.

The interface message includes logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier.

The network access mode is a public network access mode, an SNPN access mode or a PNI-NPN access mode.

In this way, the interface message includes the logical cell identifiers of at least two logical cells under the first network entity and the network access mode corresponding to each logical cell identifier, so that all the logical cell identifiers and the network access modes corresponding to each logical cell identifier can be transmitted in one or a few interface message transmission processes, and the problem that many interface messages are needed after a private network is introduced is avoided.

In addition, in this embodiment, the second network entity further needs to send an interface response message to the first network entity based on the interface message; the interface response message includes logical cell identifiers of at least two logical cells under the second network entity and a network access mode corresponding to each logical cell identifier.

Of course, it is preferable that the at least two logical cells are all logical cells corresponding to one physical cell.

It should be noted that, for specific contents of the interface message and the interface response message, reference may be made to related contents on the first network entity side, which is not described herein again.

First, for the case where the interface is an Xn interface or an F1 interface:

Second, for the case where the interface is the F1 interface:

the second PLMN information list and/or the third PLMN information list comprise public network information and NPN network information, and the NPN network information is SNPN network information and/or PNI-NPN network information.

In addition, on the basis of the above embodiment, the number of nodes in the second PLMN information list and/or the third PLMN information list is the sum of the maximum number of public network PLMNs and the maximum number of private network PLMNs supported by one physical cell.

Third, for the case where the interface is the E1 interface:

firstly, when the interface message and/or the interface response message is a message corresponding to an E1 interface, the message corresponding to the E1 interface includes an NR serving cell information list, the NR serving cell information list includes a fourth PLMN information list of gNB-CU-UP, and the fourth PLMN information list includes a supported private network information list;

Secondly, when the interface message and/or the interface response message is a message corresponding to an E1 interface, the message corresponding to the E1 interface contains an NR service cell information list, and the NR service cell information list contains a fourth PLMN information list of gNB-CU-UP;

It should be noted that, for the specific contents of the above embodiment, reference may be made to the contents of the related embodiments on the first network entity side, and details are not described herein again.

In addition, as shown in fig. 3, a block diagram of an information transmission apparatus applied to a first network entity in an embodiment of the present invention is shown, where the apparatus includes:

a sending module 301, configured to send an interface message to a second network entity, where the interface message includes logical cell identifiers of at least two logical cells in a first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode, or a public land mobile network deployed private network PNI-NPN access mode based on a public network.

Optionally, the at least two logical cells are all logical cells corresponding to one physical cell.

Optionally, when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface, the message corresponding to the Xn interface or the F1 interface includes an NR serving cell information list, the NR serving cell information list includes a physical cell identifier and a first PLMN information list corresponding to the physical cell identifier, and the first PLMN information list includes the number of nodes corresponding to the physical cell identifier, a network access mode of each node, and a logical cell identifier corresponding to each node; the maximum value of the number of the nodes is the sum of the maximum logical cell number of the public network, the maximum logical cell number of the SNPN and the maximum logical cell number of the PNI-NPN supported by the physical cell.

The apparatus provided in this embodiment can implement all the method steps that can be implemented by the method embodiment on the first network entity side, and can achieve the same technical effect, which is not described herein again.

In addition, as shown in fig. 4, a block diagram of an information transmission apparatus applied to a second network entity in the embodiment of the present invention is shown, where the apparatus includes:

a receiving module 401, configured to receive an interface message sent by a first network entity, where the interface message includes logical cell identifiers of at least two logical cells in the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode, or a public land mobile network deployed private network PNI-NPN access mode based on a public network.

The apparatus provided in this embodiment can implement all the method steps that can be implemented by the method embodiment on the second network entity side, and can achieve the same technical effect, which is not described herein again.

Fig. 5 is a schematic structural diagram of a first network entity according to an embodiment of the present invention, and as shown in fig. 5, the first network entity 500 may include at least one processor 501, a memory 502, at least one other user interface 503, and a transceiver 504. The various components in the first network entity 500 are coupled together by a bus system 505. It is understood that the bus system 505 is used to enable connection communications between these components. The bus system 505 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 5 as bus system 505, which may include any number of interconnected buses and bridges, with one or more processors, represented by processor 501, and various circuits, represented by memory 502, being linked together. The bus system 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, embodiments of the present invention will not be described any further. The bus interface provides an interface. The transceiver 504 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. For different user devices, the user interface 503 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

It is to be understood that the memory 502 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 502 of the systems and methods described in connection with the various embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The processor 501 is responsible for managing the bus system and general processing, and the memory 502 may store computer programs or instructions used by the processor 501 in performing operations, in particular, the processor 501 may be configured to: sending an interface message to a second network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network-based private network PNI-NPN access mode.

The method disclosed by the above-mentioned embodiments of the present invention may be applied to the processor 501, or implemented by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 501. The Processor 501 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502 and completes the steps of the method in combination with the hardware.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in connection with the embodiments of the invention. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Optionally, as another embodiment, the processor 501 is further configured to: receiving an interface response message fed back by the second network entity based on the interface message; the interface response message includes logical cell identifiers of at least two logical cells in the second network entity and a network access mode corresponding to each logical cell identifier.

Optionally, as another embodiment, the at least two logical cells are all logical cells corresponding to one physical cell.

Optionally, as another embodiment, when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface, the message corresponding to the Xn interface or the F1 interface includes a new air interface NR serving cell information list, the NR serving cell information list includes a physical cell identifier and a first public land mobile network PLMN information list corresponding to the physical cell identifier, and the first PLMN information list includes a private network information list corresponding to the physical cell identifier;

if the node type of the private network node in the private network information list is SNPN, the private network node includes any one or a combination of the following information: SNPN identification; tracking an area identifier TAC; a logical cell identity; a radio access network area identity (RANAC);

if the node type of the private network node in the private network information list is PNI-NPN, the private network node comprises any one or combination of the following information: PNI-NPN identification; TAC; a logical cell identity; a RAN area identification; RANAC.

Optionally, as another embodiment, when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface, the message corresponding to the Xn interface or the F1 interface includes an NR serving cell information list, the NR serving cell information list includes a physical cell identifier and a first PLMN information list corresponding to the physical cell identifier, and the first PLMN information list includes the number of nodes corresponding to the physical cell identifier, a network access mode of each node, and a logical cell identifier corresponding to each node;

the maximum value of the number of the nodes is the sum of the maximum logical cell number of the public network, the maximum logical cell number of the SNPN and the maximum logical cell number of the PNI-NPN supported by the physical cell.

Optionally, as another embodiment, when the interface message and/or the interface response message is a message corresponding to an F1 interface, the message corresponding to the F1 interface includes an NR serving cell information list, and the NR serving cell information list includes a new air interface global cell identity NR CGI, a second PLMN information list corresponding to the NR CGI, and a third PLMN information list corresponding to the NR CGI;

Optionally, as another embodiment, the number of nodes in the second PLMN information list and/or the third PLMN information list is a sum of the maximum number of public network PLMNs and the maximum number of private network PLMNs supported by one physical cell.

Optionally, as another embodiment, when the interface message and/or the interface response message is a message corresponding to an E1 interface, the message corresponding to the E1 interface includes an NR serving cell information list, the NR serving cell information list includes a fourth PLMN information list of a user plane-center node gNB-CU-UP, and the fourth PLMN information list includes a supported private network information list;

if the node type of the private network node in the private network information list is SNPN, the private network node comprises any one or combination of the following information: SNPN identification; TAC; a logical cell identity; RANAC;

Optionally, as another embodiment, when the interface message and/or the interface response message is a message corresponding to an E1 interface, the message corresponding to the E1 interface includes an NR serving cell information list, and the NR serving cell information list includes a fourth PLMN information list of a gNB-CU-UP;

the maximum value of the number of the nodes in the fourth PLMN information list is the sum of the maximum number of public network PLMNs and the maximum number of private network PLMNs supported by the gNB-CU-UP.

The first network entity provided in the embodiment of the present invention can implement each process implemented by the first network entity in the foregoing embodiments, and is not described herein again to avoid repetition.

Fig. 6 is a schematic structural diagram of a second network entity according to an embodiment of the present invention, and as shown in fig. 6, the second network entity 600 may include at least one processor 601, a memory 602, at least one other user interface 603, and a transceiver 604. The various components in the second network entity 600 are coupled together by a bus system 606. It is understood that the bus system 606 is used to enable communications among the components. The bus system 606 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various busses are labeled as the bus system 606 in fig. 6, which may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 601, and the various circuits of the memory, represented by the memory 602, being linked together. The bus system 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, embodiments of the present invention will not be described any further. The bus interface provides an interface. The transceiver 604 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. For different user devices, the user interface 603 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

It will be appreciated that the memory 602 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 602 of the systems and methods described in connection with the various embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The processor 601 is responsible for managing the bus system and general processing, and the memory 602 may store computer programs or instructions used by the processor 601 in performing operations, in particular, the processor 601 may be configured to: receiving an interface message sent by a first network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network-based private network PNI-NPN access mode.

The method disclosed by the above embodiments of the present invention may be applied to the processor 601, or implemented by the processor 601. The processor 601 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 601. The Processor 601 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the method in combination with the hardware thereof.

For a software implementation, the techniques described may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in the embodiments of the invention. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Optionally, as another embodiment, the processor 601 is further configured to: sending an interface response message to the first network entity based on the interface message; the interface response message includes logical cell identifiers of at least two logical cells under the second network entity and a network access mode corresponding to each logical cell identifier.

if the node type of the private network node in the private network information list is SNPN, the private network node comprises any one or combination of the following information: SNPN identification; tracking an area identifier TAC; a logical cell identity; a radio access network area identity (RANAC);

if the node type of the private network node in the private network information list is SNPN, the private network node includes any one or a combination of the following information: SNPN identification; TAC; a logical cell identity; RANAC;

The second network entity provided in the embodiment of the present invention can implement each process implemented by the second network entity in the foregoing embodiments, and is not described herein again to avoid repetition.

The above description mainly introduces the solutions provided by the embodiments of the present invention from the perspective of electronic devices. It is understood that, in order to implement the above functions, the electronic device provided in the embodiment of the present invention includes a hardware structure and/or a software module for performing each function. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software for performing the exemplary elements and algorithm steps described in connection with the embodiments disclosed herein.

Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiment of the present invention, the electronic device and the like may be divided into functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.

It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the method according to the embodiments of the present invention. The computer storage medium is a non-transitory (English) medium, comprising: flash memory, removable hard drive, read only memory, random access memory, magnetic or optical disk, and the like.

On the other hand, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method provided in the foregoing embodiments is implemented and can achieve the same technical effect, which is not described herein again.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An information transmission method applied to a first network entity is characterized by comprising the following steps:

sending an interface message to a second network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network-based private network PNI-NPN access mode;

the logical cell identifier is included in a private network information LIST, the private network information LIST is included in Broadcast plmn id INFO LIST NR, and the Broadcast plmn id INFO LIST NR is included in the interface message.

2. The information transmission method according to claim 1, further comprising:

receiving an interface response message fed back by the second network entity based on the interface message; wherein, the interface response message includes logical cell identifiers of at least two logical cells under the second network entity and a network access mode corresponding to each logical cell identifier.

3. The information transmission method according to claim 1 or 2, wherein the at least two logical cells are all logical cells corresponding to one physical cell.

4. The information transmission method according to claim 1 or 2, wherein when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface,

the message corresponding to the Xn interface or the F1 interface includes a new air interface NR serving cell information list, the NR serving cell information list includes a physical cell identifier and a first public land mobile network PLMN information list corresponding to the physical cell identifier, and the first PLMN information list includes a private network information list corresponding to the physical cell identifier;

if the node type of the private network node in the private network information list is SNPN, the private network node includes any one or a combination of the following information:

SNPN identification;

tracking an area identifier TAC;

a logical cell identity;

a radio access network area identity (RANAC);

if the node type of the private network node in the private network information list is PNI-NPN, the private network node comprises any one or combination of the following information:

PNI-NPN identification;

TAC；

a logical cell identity;

a RAN area identification;

RANAC。

5. the information transmission method according to claim 1 or 2, wherein when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface,

the message corresponding to the Xn interface or the F1 interface includes an NR serving cell information list, the NR serving cell information list includes a physical cell identifier and a first PLMN information list corresponding to the physical cell identifier, and the first PLMN information list includes the number of nodes corresponding to the physical cell identifier, a network access mode of each node, and a logical cell identifier corresponding to each node;

6. The information transmission method according to claim 1 or 2, wherein when the interface message and/or the interface response message is a message corresponding to an F1 interface,

the message corresponding to the F1 interface includes an NR serving cell information list, and the NR serving cell information list includes a new air interface global cell identity NR CGI, a second PLMN information list corresponding to the NR CGI, and a third PLMN information list corresponding to the NR CGI;

7. The information transmission method according to claim 6, wherein the number of nodes in the second PLMN information list and/or the third PLMN information list is a sum of the maximum number of public network PLMNs and the maximum number of private network PLMNs supported by one physical cell.

8. The information transmission method according to claim 1 or 2, wherein when the interface message and/or the interface response message is a message corresponding to an E1 interface,

the message corresponding to the E1 interface includes an NR serving cell information list, and the NR serving cell information list includes a fourth PLMN information list of a user plane-center node gNB-CU-UP, and the fourth PLMN information list includes a supported private network information list;

SNPN identification;

TAC；

a logical cell identity;

RANAC；

PNI-NPN identification;

TAC；

a logical cell identity;

a RAN area identification;

RANAC。

9. the information transmission method according to claim 1 or 2, wherein when the interface message and/or the interface response message is a message corresponding to an E1 interface,

the message corresponding to the E1 interface includes an NR serving cell information list, and the NR serving cell information list includes a fourth PLMN information list of a gNB-CU-UP;

10. An information transmission method applied to a second network entity is characterized by comprising the following steps:

receiving an interface message sent by a first network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network-based private network PNI-NPN access mode;

11. The information transmission method according to claim 10, further comprising:

sending an interface response message to the first network entity based on the interface message; the interface response message includes logical cell identifiers of at least two logical cells in the second network entity and a network access mode corresponding to each logical cell identifier.

12. The information transmission method according to claim 10 or 11, wherein the at least two logical cells are all logical cells corresponding to one physical cell.

13. The information transmission method according to claim 10 or 11, wherein when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface,

SNPN identification;

tracking an area identifier TAC;

a logical cell identity;

a radio access network area identity (RANAC);

PNI-NPN identification;

TAC；

a logical cell identity;

a RAN area identification;

RANAC。

14. the information transmission method according to claim 10 or 11, wherein when the interface message and/or the interface response message is a message corresponding to an Xn interface or an F1 interface,

the maximum value of the node number is the sum of the maximum logical cell number of the public network, the maximum logical cell number of the SNPN and the maximum logical cell number of the PNI-NPN supported by the physical cell.

15. The information transmission method according to claim 10 or 11, wherein when the interface message and/or the interface response message is a message corresponding to an F1 interface,

16. The information transmission method according to claim 15, wherein the number of nodes in the second PLMN information list and/or the third PLMN information list is a sum of a maximum number of public networks PLMN and a maximum number of private networks PLMN supported by one physical cell.

17. The information transmission method according to claim 10 or 11, wherein when the interface message and/or the interface response message is a message corresponding to an E1 interface,

SNPN identification;

TAC；

a logical cell identity;

RANAC；

PNI-NPN identification;

TAC；

a logical cell identity;

a RAN area identification;

RANAC。

18. the information transmission method according to claim 10 or 11, wherein when the interface message and/or the interface response message is a message corresponding to an E1 interface,

19. An information transmission apparatus applied to a first network entity, comprising:

the system comprises a sending module and a receiving module, wherein the sending module is used for sending an interface message to a second network entity, the interface message comprises logical cell identifiers of at least two logical cells under a first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network deployed private network PNI-NPN access mode based on a public network;

20. An information transmission apparatus applied to a second network entity, comprising:

the system comprises a receiving module and a processing module, wherein the receiving module is used for receiving an interface message sent by a first network entity, the interface message comprises logical cell identifications of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identification, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network-based private network PNI-NPN access mode;

21. A first network entity comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of:

22. The first network entity of claim 21, wherein the processor, when executing the computer program, performs the steps of:

receiving an interface response message fed back by the second network entity based on the interface message; wherein, the interface response message includes logical cell identifiers of at least two logical cells under the second network entity and a network access mode corresponding to each logical cell identifier;

23. The first network entity of claim 21 or 22, wherein the at least two logical cells are all logical cells corresponding to one physical cell.

24. The first network entity according to claim 21 or 22, wherein when the interface message and/or interface response message is a message corresponding to an Xn interface or an F1 interface,

SNPN identification;

tracking an area identifier TAC;

a logical cell identity;

a radio access network area identity (RANAC);

PNI-NPN identification;

TAC；

a logical cell identity;

a RAN area identification;

RANAC。

25. the first network entity according to claim 21 or 22, wherein when the interface message and/or interface response message is a message corresponding to an Xn interface or an F1 interface,

26. The first network entity according to claim 21 or 22, wherein when the interface message and/or interface response message is a message corresponding to an F1 interface,

27. The first network entity of claim 26, wherein the number of nodes in the second PLMN information list and/or the third PLMN information list is a sum of a maximum number of public network PLMNs and a maximum number of private network PLMNs supported by a physical cell.

28. The first network entity according to claim 21 or 22, wherein when the interface message and/or interface response message is a message corresponding to an E1 interface,

SNPN identification;

TAC；

a logical cell identity;

RANAC；

PNI-NPN identification;

TAC；

a logical cell identity;

a RAN area identification;

RANAC。

29. the first network entity according to claim 21 or 22, wherein when the interface message and/or interface response message is a message corresponding to an E1 interface,

30. A second network entity comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of:

receiving an interface message sent by a first network entity, wherein the interface message comprises logical cell identifiers of at least two logical cells under the first network entity and a network access mode corresponding to each logical cell identifier, and the network access mode is a public network access mode, an independently deployed private network SNPN access mode or a public land mobile network deployed private network PNI-NPN access mode based on a public network;

31. The second network entity according to claim 30, wherein the processor when executing the computer program performs the steps of:

sending an interface response message to the first network entity based on the interface message; wherein, the interface response message includes logical cell identifiers of at least two logical cells under the second network entity and a network access mode corresponding to each logical cell identifier.

32. The second network entity according to claim 30 or 31, wherein the at least two logical cells are all logical cells corresponding to one physical cell.

33. The second network entity according to claim 30 or 31, wherein when the interface message and/or interface response message is a message corresponding to an Xn interface or an F1 interface,

SNPN identification;

tracking an area identifier TAC;

a logical cell identity;

a radio access network area identity (RANAC);

PNI-NPN identification;

TAC；

a logical cell identity;

a RAN area identification;

RANAC。

34. the second network entity according to claim 30 or 31, wherein when the interface message and/or interface response message is a message corresponding to an Xn interface or an F1 interface,

35. Second network entity according to claim 30 or 31, wherein when the interface message and/or interface response message is a message corresponding to an F1 interface,

36. The second network entity of claim 35, wherein the number of nodes in the second PLMN information list and/or the third PLMN information list is a sum of a maximum number of public network PLMNs and a maximum number of private network PLMNs supported by a physical cell.

37. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 9 or carries out the steps of the method according to any one of claims 10 to 18.