CN113923733A

CN113923733A - Transmission method, first device, second device, distribution unit and concentration unit

Info

Publication number: CN113923733A
Application number: CN202010661781.4A
Authority: CN
Inventors: 刘亮; 宁勇强; 胡南; 李男
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: 2020-07-10
Filing date: 2020-07-10
Publication date: 2022-01-11

Abstract

The invention provides a transmission method, a first device, a second device, a distribution unit and a concentration unit, wherein the transmission method comprises the following steps: the first device sends the information related to the NPN to the second device to inform the second device of the information related to the NPN, so that the second device can select a proper target base station based on the received information related to the NPN, and the efficiency is improved.

Description

Transmission method, first device, second device, distribution unit and concentration unit

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a transmission method, a network side device, and a terminal.

Background

The network requirements of the vertical industry generally have certain characteristics, such as performance requirements, isolation and quality assurance requirements, and users of the vertical industry can only access the vertical industry network, and public network users cannot access the vertical industry network. A terminal in a Non-Public Network (SNPN) mode configured as an independent Network can only access a cell of an SNPN, and when a source base station to which the terminal is accessed is switched, if the terminal in the SNPN mode is switched to a target cell that does not support the SNPN, the target cell will reject the terminal access, and at this time, a target base station needs to be reselected for the terminal, which may cause an excessively long terminal access delay and affect user experience.

That is, currently, the handover efficiency of performing base station handover/reselection for a terminal accessing a vertical industry private network is low.

Of course, similar problems exist in other flows as well.

Disclosure of Invention

The embodiment of the invention provides a transmission method, network side equipment and a terminal, aiming at solving the problem of low efficiency caused by information loss of a process accessed to a non-public network.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a transmission method, where the transmission method is used for a first device, and the transmission method includes:

sending information related to a Non-Public Network (NPN for short) to the second device;

the first device is a network side device or a terminal, and the second device is a network side device.

In a second aspect, an embodiment of the present invention provides a transmission method, where the transmission method is used for a second device, and the transmission method includes:

receiving information which is sent by first equipment and is related to a non-public network NPN;

In a third aspect, an embodiment of the present invention provides a transmission method, used for a distribution unit, including:

the DU determines information related to a first non-public network NPN and sends the information related to the first NPN to a central unit CU;

or, the DU receives information related to a second NPN sent by the CU.

In a fourth aspect, an embodiment of the present invention provides a transmission method, used in a central unit, including:

the CU determines information related to a first non-public network NPN and sends the information related to the first NPN to a distribution unit DU;

alternatively, the first and second electrodes may be,

and the CU receives the information which is sent by the DU and related to the second NPN.

In a fifth aspect, an embodiment of the present invention provides a first device, including: a processor and a transceiver;

the transceiver is used for transmitting information related to a non-public network NPN to a second device;

In a sixth aspect, an embodiment of the present invention provides a second device, including: a processor and a transceiver;

the transceiver is used for receiving information which is sent by the first equipment and is related to a non-public network NPN;

In a seventh aspect, an embodiment of the present invention provides a distribution unit, including: a processor and a transceiver;

the processor is configured to determine information related to a first non-public network NPN;

the transceiver is used for sending the information related to the first NPN to a central unit CU;

alternatively, the first and second electrodes may be,

the transceiver is used for receiving information which is sent by the CU and related to a second NPN.

In an eighth aspect, an embodiment of the present invention provides a centralized unit, including: a processor and a transceiver;

a processor for determining information relating to a first non-public network NPN;

a transceiver for transmitting the information related to the first NPN to a distribution unit DU;

alternatively, the first and second electrodes may be,

and the transceiver is used for receiving the information which is sent by the DU and is related to the second NPN.

In a ninth aspect, an embodiment of the present invention provides a first device, where the first device includes:

the sending module is used for sending information related to the non-public network NPN to the second equipment;

In a tenth aspect, an embodiment of the present invention provides a second device, where the second device includes:

the receiving module is used for receiving information which is sent by the first equipment and is related to the non-public network NPN;

In an eleventh aspect, an embodiment of the present invention provides a distribution unit, where the distribution unit includes:

a determining module for determining information related to a first non-public network NPN;

the sending module is used for sending the information related to the first NPN to a central unit CU;

alternatively, the first and second electrodes may be,

the distribution unit includes: and the receiving module is used for receiving the information which is sent by the CU and is related to the second NPN.

In a twelfth aspect, an embodiment of the present invention provides a concentration unit, where the concentration unit includes:

a sending module, configured to send the information related to the first NPN to a distribution unit DU;

alternatively, the first and second electrodes may be,

the concentration unit includes: and the receiving module is used for receiving the information which is sent by the DU and is related to the second NPN.

In a thirteenth aspect, an embodiment of the present invention provides a network-side device, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps in the transmission method according to the first aspect, or the computer program, when executed by the processor, implements the steps in the transmission method according to the second aspect, or the computer program, when executed by the processor, implements the steps in the transmission method according to the third aspect, or the computer program, when executed by the processor, implements the steps in the transmission method according to the fourth aspect.

In a fourteenth aspect, an embodiment of the present invention provides a terminal, which is characterized by including a processor, a memory, and a computer program stored on the memory and being executable on the processor, where the computer program, when executed by the processor, implements the steps in the transmission method according to the first aspect.

In a fifteenth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the transmission method according to the first aspect.

Sixteenth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, the computer program, when being executed by a processor, implementing the steps in the transmission method according to the first aspect, or the computer program, when being executed by the processor, implementing the steps in the transmission method according to the second aspect, or the computer program, when being executed by the processor, implementing the steps in the transmission method according to the third aspect, or the computer program, when being executed by the processor, implementing the steps in the transmission method according to the fourth aspect.

In the embodiment of the invention, the first device sends the information related to the NPN to the second device to inform the second device of the information related to the NPN, so that the second device can select a proper target base station for switching or reselecting based on the received information related to the NPN, and the efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a flowchart of a transmission method according to an embodiment of the present invention;

fig. 2a-2e are schematic diagrams of information transmission between a first device and a second device according to an embodiment of the present invention;

fig. 3 is a second flowchart of a transmission method according to an embodiment of the present invention;

fig. 4 is a third flowchart of a transmission method according to an embodiment of the present invention;

fig. 5 is a fourth flowchart of a transmission method according to an embodiment of the present invention;

fig. 6 is a diagram illustrating a structure of a first device according to an embodiment of the present invention;

fig. 7 is a diagram illustrating a second apparatus according to an embodiment of the present invention;

FIG. 8a is a block diagram of a distribution unit according to an embodiment of the present invention;

FIG. 8b is a second block diagram of a distribution unit according to the embodiment of the present invention;

FIG. 9a is a block diagram of a hub unit according to an embodiment of the present invention;

FIG. 9b is a second structural diagram of a hub unit according to an embodiment of the present invention;

fig. 10 is a diagram of another network-side device structure according to an embodiment of the present invention;

fig. 11 is a diagram of another terminal structure according to an embodiment of the present invention.

Detailed Description

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, 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.

Referring to fig. 1, fig. 1 is a flowchart of a transmission method provided in an embodiment of the present invention, for a first device, as shown in fig. 1, the method includes the following steps:

step 101, sending information related to a non-public network NPN to a second device; the first device is a network side device or a terminal, and the second device is a network side device.

The first device sends information related to a Non-Public Network (NPN for short) to the second device to inform the second device of the information related to the NPN, so that the second device can select a suitable target base station for handover, reselection or initial access based on the received information related to the NPN when performing the handover, reselection or initial access of the base station, thereby improving efficiency.

The first device is a network side device or a terminal, that is, the information related to the NPN may be sent to the second device by the network side device or sent to the second device by the terminal. Specific information included in the NPN-related information when the first device is a network-side device or a terminal will be described below.

When the first device is a network side device, the information related to the NPN includes at least one of the following information: identification information of NPN broadcast by the first device or the cell thereof, priority information of NPN broadcast by the first device or the cell thereof, type information of NPN broadcast by the first device or the cell thereof, and service information supported by NPN broadcast by the first device or the cell thereof;

or, in the case that the first device is a network-side device, the NPN-related information includes: the identification information of the NPN selected by the terminal at the first equipment;

or, in a case that the first device is a terminal, the information related to the NPN includes at least one of the following information: the method comprises the steps that identification information of NPN broadcast by third equipment, type information of NPN broadcast by the third equipment and service information supported by NPN broadcast by the third equipment are obtained; the third device is a network side device;

or, in the case that the first device is a terminal, the information related to the NPN includes identification information of the NPN selected by the terminal at the second device.

The method includes two cases when both the first device and the second device are network side devices, and in the first case, the source base station is the second device.

As shown in fig. 2 a: the base station B is a first device, the base station a is a second device, and the source base station is the base station a. The base station B sends its own information related to the NPN to the base station a, there may be a plurality of first devices, each first device sends its own information related to the NPN to the base station a, for example, the base station C is also a first device, the base station C sends its own information related to the NPN to the base station a, and the base station a selects a suitable target base station for decision making based on the received information related to the NPN, for example, the base station a selects the base station B for handover, and the base station B provides a relevant service for the terminal U.

In this case, the NPN-related information that the first device sends to the second device includes at least one of the following information: the service information may be network slice information, APP ID information, or the like, and the service information may be service information supported by the first device or the NPN broadcasted by the cell.

Further, the information related to the NPN is carried by a base station interface establishment request message, an interface establishment reply message, or a base station configuration update message sent by the first device. That is, the first device is a network-side device, and the NPN-related information includes at least one of the following information: under the conditions of the identification information of the NPN broadcast by the first device or the cell thereof, the priority information of the NPN broadcast by the first device or the cell thereof, the type information of the NPN broadcast by the first device or the cell thereof, and the service information supported by the NPN broadcast by the first device or the cell thereof, the information related to the NPN is carried by a base station interface establishment request message, an interface establishment reply message, or a base station configuration update message sent by the first device.

For example, the service information broadcast by the first device D or the cell thereof and supported by the NPN includes a, and the service information broadcast by the first device E and supported by the NPN includes a and c, and when the terminal service is c, the second device may select the first device whose service information includes the terminal service based on the received service information supported by the first device D or the cell thereof and the service information supported by the first device E, that is, the second device selects the first device E for handover or reselection.

In addition, the terminal U also sends its own NPN-related information to the base station a, where the NPN-related information sent by the terminal U includes the NPN identification information selected by the terminal at the second device.

In this case, the second device may learn the identities and types of networks supported by the first device. The first device and the second device may interact with identifiers and types of networks supported by the first device and the second device, where the network identifiers may be NPN network (SNPN) identifiers or Closed Access Group (CAG) identifiers of independent networks, and the network types may be whether networks corresponding to the network identifiers only support authorized user Access, and each SNPN identifier or CAG identifier configures a supported service condition, such as a supported slice type.

In a second case, the source base station is the first device, when both the first device and the second device are network-side devices. As shown in fig. 2B, the base station a is a first device, the base station B is a second device, and the source base station is the base station a. The terminal U sends the information related to the NPN to the base station A, the base station A sends the information related to the NPN of the terminal to the base station B, and the base station B makes a decision based on the received information related to the NPN of the terminal, for example, according to a network which the terminal is currently accessed to, which network of networks supported by the terminal is accessed to is selected, so that the switching speed is improved.

In this case, the information related to the NPN sent by the first device includes: and the terminal selects NPN identification information from the first equipment. Further, the information related to the NPN is carried by the handover request message or the base station addition request message sent by the first device. That is, when the first device is a network side device and the NPN related information includes identification information of an NPN selected by the terminal at the first device, the NPN related information is carried by a handover request message or a base station addition request message sent by the first device.

In this case, the first device may carry, in a message sent to the second device, an identification of the network selected by the terminal at the first device. For example, a first device sends a handover request message to a second device, where the handover request message carries an identifier of a network selected by a terminal in the first device; and the first equipment sends an auxiliary equipment adding message to the second equipment, wherein the auxiliary equipment adding message carries the identifier of the terminal in the network selected by the first equipment.

In the first case, the terminal further receives NPN-related information of a third device, and the third device is a network-side device. As shown in fig. 2 c: the terminal U is a first device, the base station A is a second device, the base stations B and C are third devices, and the source base station is the base station A. The terminal U receives the respective NPN-related information of the base station B and the base station C, and then transmits the respective NPN-related information of the base station B and the base station C to the base station a. The terminal U also sends its own NPN-related information to the base station a, and the base station a performs a handover based on the NPN-related information it receives, for example, to the base station a or the base station B, and the base station a or the base station B provides the terminal U with a related service.

In this case, the NPN-related information includes at least one of the following information: the method comprises the steps of identifying NPN identification information broadcasted by a third device, NPN type information broadcasted by the third device and service information supported by the NPN broadcasted by the third device.

Further, the identification information of the NPN broadcast by the third device, the type information of the NPN broadcast by the third device, and the service information supported by the NPN broadcast by the third device are obtained by the terminal from the system information broadcast by the third device. In this case, the information related to the NPN is transmitted through an air interface or a Non-Access Stratum (NAS).

In this case, the terminal measures the signal quality of the neighboring cell according to the configuration of the base station, reads the system message of the neighboring cell, obtains the cell identifier, the supported network identifier list and the network type of the neighboring cell, and the service condition supported by the configuration of the NPN network (SNPN) identifier or the CAG identifier of each independent network, and reports the information to the source base station, that is, the second device, in the measurement report or in an individual report.

Further, the second device updates the neighbor cell list according to the network identifier and the network type supported by the neighboring base station (neighboring other network side device), identifies whether the neighbor cell is a non-public network, and identifies the supported network identifier. And the second equipment makes a decision on whether to initiate switching to the adjacent cell or not according to the adjacent cell relation table. In addition, the source base station learns the supported CAG ID (i.e. CAG identifier) or SNPN ID (i.e. SNPN identifier) and type sent by the target base station and the service condition supported by each network identifier, and determines the network identifier switched by the target base station by combining the CAG identifier selected by the terminal and the developed service condition.

Specifically, if the base station supports multiple network identifiers, which are all in the selectable network identifier list configured by the terminal, the source base station preferentially selects, for the terminal, a network identifier that supports a service currently initiated by the terminal among the network identifiers, and initiates handover or secondary base station addition based on the base station that supports the network identifier;

if the base station supports a plurality of network identifications, the network identifications are all in a selectable network identification list configured by the terminal, but the network identifications are not the network identifications supporting the service currently initiated by the terminal. In this scenario, the source base station does not select these base stations to initiate a handover or secondary base station addition, even though these network identities are in the terminal-selectable list of network identities.

In a second case where the first device is a terminal and the second device is a network-side device, the terminal sends its own NPN-related information to the second device. As shown in fig. 2 d: the terminal U is a first device, the base station A is a second device, the source base station is the base station A, the terminal sends the information related to the NPN of the terminal to the base station A, the base station A performs switching according to the received information related to the NPN of the terminal and further in combination with the capability information related to the NPN of other base stations, and a proper target base station is selected for the terminal. The information related to NPN comprises identification information of one or more NPN selected by the terminal at the second device. Further, the information related to the NPN is transmitted through the air interface or the NAS layer.

In an embodiment of the application, when the first device is a terminal and the NPN related information includes identification information of an NPN selected by the terminal at the second device, before the sending the information related to the non-public network NPN to the second device, the transmission method further includes: receiving identification information of NPN supported by the second device, wherein the identification information is broadcasted by the second device; the NPN initiating the access is selected. When the first device is a terminal, the first device may select a suitable target base station for access based on the NPN identification information supported by the second device.

As shown in fig. 2e, a base station a, a base station B, and a base station C broadcast NPN identification information supported by a terminal U, and the terminal U selects a suitable network access according to its own capability information, and in fig. 2e, the terminal U selects the base station a for network access, that is, sends information related to the NPN to the base station a.

Specifically, first, the second device broadcasts an identification list of the network, where the identification list includes identification information of the NPN supported by the second device, and the terminal receives the identification list, where the identification list may be one of:

SNPN Identifier lists, such as Public Land Mobile Network (PLMN) Identifier + NID (i.e., Network Identifier) lists, i.e., PLMN ID + NID lists, and CAG Identifier lists, e.g., PLMN ID and CAG ID lists;

then, the terminal selects a suitable NPN to initiate access, which may be one of the following ways:

the terminal selects a corresponding SNPN Identifier according to a pre-configured SNPN access mode and/or a pre-configured SUPI (Subscriber Identifier) and a certificate, for example, when the SNPN access mode is configured to be started or enabled and the SNPN Identifier corresponding to the SUPI and the certificate is consistent with the SNPN Identifier supported by network broadcasting, the terminal selects the SNPN to initiate access;

or, the terminal selects the corresponding CAG to initiate access according to a pre-configured CAG white list and a list of CAG identifiers broadcasted by the air interface.

Finally, the terminal sends the identifier of the selected network to the second device, which may specifically be: the terminal reports the identifier of the network selected by the terminal on the air interface, for example, directly to the second device through an initial registration process, or the terminal carries the identifier of the network selected by the terminal on the NAS layer, and the core network sends the identifier of the network selected by the terminal to the second device.

According to the transmission method, the source base station can obtain the network information selected by the terminal and the network information of the adjacent region, and the target base station can obtain the identification information selected by the source base station, so that the source base station is assisted to select the appropriate target base station, the switching success rate is increased, the switching efficiency is improved, and the user experience is improved.

Referring to fig. 3, fig. 3 is another flowchart of a transmission method provided in an embodiment of the present invention, applied to a second device, and as shown in fig. 3, the transmission method includes the following steps:

step 201, receiving information related to a non-public network NPN sent by a first device, where the first device is a network side device or a terminal, and the second device is a network side device.

The second device receives information related to a Non-Public Network (NPN for short) sent by the first device, and can acquire the information related to the NPN of the first device, and when the second device performs base station handover, the second device can select a suitable target base station for handover or reselection based on the received information related to the NPN, so as to improve efficiency.

The method includes two cases when both the first device and the second device are network side devices, and in the first case, the source base station is the second device. As shown in fig. 2 a: the base station B is a first device, the base station a is a second device, and the source base station is the base station a. The base station B sends its own information related to the NPN to the base station a, there may be a plurality of first devices, each first device sends its own information related to the NPN to the base station a, for example, the base station C is also a first device, the base station C sends its own information related to the NPN to the base station a, and the base station a selects a suitable target base station for handover based on the received information related to the NPN, for example, the base station a selects the base station B for handover, and the base station B provides a relevant service for the terminal U.

In this case, the NPN-related information that the first device sends to the second device includes at least one of the following information: the identification information of the NPN broadcast by the first device or the cell thereof, the priority information of the NPN broadcast by the first device or the cell thereof, the type information of the NPN broadcast by the first device or the cell thereof, and the service information supported by the NPN broadcast by the first device or the cell thereof. Further, the information related to the NPN is carried by a base station interface establishment request message, an interface establishment reply message, or a base station configuration update message sent by the first device. That is, the first device is a network-side device, and the NPN-related information includes at least one of the following information: under the conditions of the identification information of the NPN broadcast by the first device or the cell thereof, the priority information of the NPN broadcast by the first device or the cell thereof, the type information of the NPN broadcast by the first device or the cell thereof, and the service information supported by the NPN broadcast by the first device or the cell thereof, the information related to the NPN is carried by a base station interface establishment request message, an interface establishment reply message, or a base station configuration update message sent by the first device.

In this case, the second device may learn the identities and types of networks supported by the first device. The first device and the second device may interact with identities and types of networks supported by the first device and the second device, where the network identity may be an SNPN identity or a CAG identity, the network type may be whether a network corresponding to the network identity supports only authorized user access, and each SNPN identity or CAG identity configures a supported service condition, such as a supported slice type.

Further, the identification information of the NPN broadcast by the third device, the type information of the NPN broadcast by the third device, and the service information supported by the NPN broadcast by the third device are obtained by the terminal from the system information broadcast by the third device. In this case, the information related to the NPN is transmitted through the air interface or the NAS layer.

In this case, the terminal measures the signal quality of the neighboring cell according to the configuration of the base station, reads the system message of the neighboring cell, obtains the cell identifier, the supported network identifier list and the network type of the neighboring cell, and the supported service condition configured by each SNPN identifier or CAG identifier, and reports the above information to the source base station, that is, the second device, in the measurement report or in an individual report.

In an embodiment of the present application, the first device is a network side device, and the NPN related information includes identification information of an NPN selected by the terminal at the second device, and after the receiving information related to an NPN of a non-public network and sent by the first device, the transmission method further includes:

and sending indication information to fourth equipment, wherein the indication information is used for indicating NPN identification information selected by the terminal, and the fourth equipment is network side equipment.

As shown in fig. 2B, the first device is a terminal U, the second device is a base station a, the fourth device is a base station B, and the source base station is the base station a. The terminal U sends the information related to the NPN to the base station A, the base station A sends indication information to the fourth device after receiving the information related to the NPN sent by the terminal U, the indication information is used for indicating the identification information of the NPN selected by the terminal, and the fourth device is a network side device. Wherein the sending of the indication information to the fourth device specifically includes: and sending the indication information to the fourth equipment through a switching request message or a secondary base station adding message.

In this case, the information related to the NPN sent by the first device includes: and the terminal selects NPN identification information from the first equipment.

In an embodiment of the application, the first device is a terminal, and the transmission method further includes, when the NPN-related information includes NPN identification information selected by the second device at the terminal, before the receiving information related to a non-public network NPN and sent by the first device, the method further includes:

broadcast identification information for the supported NPN.

First, the second device broadcasts an identification list of the network, the identification list including identification information of the NPN supported by the second device, and the terminal receives the identification list, which may be one of:

SNPN identification lists, such as PLMN ID + NID lists;

alternatively, CAG identification lists, such as PLMN ID and CAG ID lists;

the terminal selects a corresponding SNPN Identifier according to a pre-configured SNPN access mode and/or a pre-configured SUPI (Subscriber Identifier) and certificate, for example, when the SNPN access mode is configured to be started or enabled and the SNPN Identifier corresponding to the SUPI and the certificate is consistent with the SNPN Identifier supported by network broadcasting, the terminal selects the SNPN to initiate access;

Referring to fig. 4, fig. 4 is a flowchart of a transmission method for a Distributed Unit (DU) according to an embodiment of the present invention, and as shown in fig. 4, the method includes the following steps:

step 301, the DU determines information related to a first non-public network NPN, and sends the information related to the first NPN to a Central Unit (CU);

or, the DU receives information related to a second NPN sent by the CU.

The above-mentioned CUs and DUs belong to different CU-DU architectures, e.g. a DU can be understood as a DU (i.e. a first device) in a first CU-DU architecture and a CU can be understood as a CU (i.e. a second device) in a second CU-DU architecture. In this embodiment, the DU in the first CU-DU architecture and the CU in the second CU-DU architecture may exchange information related to the NPN, for example, the DU in the first CU-DU architecture sends information related to the first NPN to the CU in the second CU-DU architecture, or the CU in the second CU-DU architecture sends information related to the second NPN to the DU in the first CU-DU architecture. The first device and the second device are both network side devices.

In this embodiment, the DU of the first device and the CU of the second device may interact with their respective information related to the NPN, so as to assist the source base station in selecting a suitable target base station, increase the handover success rate, improve the handover efficiency, and improve the user experience.

The DU determines information about the first NPN and sends the information about the first NPN to the central unit, e.g., by the first device (i.e., the DU) determining the SNPN identities and types supported by each cell and sending the SNPN identities and types supported by each cell to the second device (i.e., the CU).

In an embodiment of the present application, determining, at the DU, information related to a first NPN, and sending the information related to the first NPN to a central unit CU includes:

and the DU determines a first system message carrying the information related to the first NPN and sends the first system message to a terminal.

For example, a first device (i.e., DU) generates a first system message including a service type supported by a supported SNPN identifier, a type, and a network identifier, and sends the first system message to a terminal, or a second device generates a system message including a supported SNPN identifier and a type, and sends the system message to the first device, and the first device sends the system message to the terminal.

In an embodiment of the present application, after the DU receives the information related to the second NPN sent by the CU, the transmission method further includes:

and the DU receives a second system message which is sent by the CU and carries the information related to the second NPN, and sends the second system message to the terminal.

For example, the second device (i.e. CU) generates a second system message containing the supported SNPN identifier, type and service type corresponding to the network identifier, and sends the second system message to the first device, and the first device sends the second system message to the terminal, or the first device generates a system message containing the supported SNPN identifier and type, and sends the system message to the terminal.

In an embodiment of the application, the information related to the first NPN comprises at least one of the following information: the identification information of the NPN broadcasted by the DU or the cell thereof, the priority information of the NPN broadcasted by the DU or the cell thereof, the type information of the NPN broadcasted by the DU or the cell thereof, and the service information supported by the NPN broadcasted by the DU or the cell thereof.

Referring to fig. 5, fig. 5 is a flowchart of a transmission method for a Centralized Unit (CU) according to an embodiment of the present invention, as shown in fig. 5, the method includes the following steps:

step 401, the CU determines information related to a first non-public network NPN and sends the information related to the first NPN to a distribution unit DU;

alternatively, the first and second electrodes may be,

The aforementioned DU and CU belong to different DU-CU architectures, e.g. a CU may be understood as a CU in a first DU-CU architecture (i.e. a first device) and a DU may be understood as a DU in a second DU-CU architecture (i.e. a second device). In this embodiment, the CU in the first DU-CU architecture and the DU in the second DU-CU architecture may exchange information related to the NPN, for example, the CU in the first DU-CU architecture sends information related to the first NPN to the DU in the second DU-CU architecture, or the DU in the second DU-CU architecture sends information related to the second NPN to the CU in the first DU-CU architecture. The first device and the second device are both network side devices.

The CU determines information about the first NPN and sends the information about the first NPN to the distribution unit, e.g., by the first device (i.e., the CU) determining the SNPN identities and types supported by each cell and sending the SNPN identities and types supported by each cell to the second device (i.e., the DU).

In an embodiment of the present application, the determining, by the CU, information related to an NPN of a non-public network, and sending the information related to the NPN to a distribution unit DU includes:

the CU determines a system message carrying information related to the first NPN and sends the system message to the DU.

For example, a first device (i.e., CU) generates a system message including a service type supported by the supported SNPN identifier, the type, and the network identifier, and transmits the system message to a second device (i.e., DU), and the second device transmits the system message to a terminal.

In an embodiment of the application, the information related to the first NPN comprises at least one of the following information: the management unit comprises identification information of NPN broadcast by the CU or the cell thereof, priority information of NPN broadcast by the CU or the cell thereof, type information of NPN broadcast by the CU or the cell thereof and service information supported by NPN broadcast by the CU or the cell thereof.

The embodiment of the present application further provides a transmission method, which is used for a CU-DU architecture, and the transmission method includes:

the CU or DU in the CU-DU architecture sends information related to the non-public network NPN to the target device.

Further, in a case that the target device is a network side device, the sending, by the CU or DU, information related to an NPN of the non-public network to the target device includes:

determining information through a CU of the CU-DU framework, and sending the NPN-related information to a DU of the target device; alternatively, the first and second electrodes may be,

and determining information through the DU of the CU-DU framework, and sending the NPN related information to the CU of the target device.

Further, in a case that the target device is a terminal, the sending, by the CU or the DU, information related to an NPN of the non-public network to the target device includes:

determining information through a DU of the CU-DU framework, and sending the information related to the NPN to the terminal; alternatively, the first and second electrodes may be,

and receiving information sent by other CUs through the DU of the CU-DU framework, and sending the information related to the NPN to the terminal.

Further, when the target CU-DU architecture is a terminal, the information related to the NPN is carried in a system message and sent to the terminal by the DU.

Further, in the case that the target device is a terminal, the information related to the NPN is sent to the terminal by the DU of the CU-DU architecture, and the information related to the NPN is determined by the DU of the CU-DU architecture or received from DUs of other CU-DU architectures.

Further, the NPN-related information includes at least one of the following information: the management information comprises identification information of NPN broadcasted by the CU-DU framework, priority information of NPN broadcasted by the CU-DU framework, type information of NPN broadcasted by the CU-DU framework and service information supported by NPN broadcasted by the CU-DU framework.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a first device according to an embodiment of the present invention, and as shown in fig. 6, the first device 600 includes:

a first sending module 601, configured to send information related to a non-public network NPN to a second device; the first device is a network side device or a terminal, and the second device is a network side device.

Further, in a case that the first device is a network-side device, the NPN-related information includes at least one of the following information: identification information of NPN broadcast by the first device or the cell thereof, priority information of NPN broadcast by the first device or the cell thereof, type information of NPN broadcast by the first device or the cell thereof, and service information supported by NPN broadcast by the first device or the cell thereof;

or

When the first device is a network-side device, the information related to the NPN includes: the identification information of the NPN selected by the terminal at the first equipment;

or

In a case where the first device is a terminal, the information related to the NPN includes at least one of the following information: the method comprises the steps that identification information of NPN broadcast by third equipment, type information of NPN broadcast by the third equipment and service information supported by NPN broadcast by the third equipment are obtained; the third device is a network side device;

or

And under the condition that the first device is a terminal, the information related to the NPN comprises identification information of the NPN selected by the terminal at the second device.

Further, the first device is a network side device, and the NPN related information includes at least one of the following information: under the conditions of the identification information of the NPN broadcast by the first device or the cell thereof, the priority information of the NPN broadcast by the first device or the cell thereof, the type information of the NPN broadcast by the first device or the cell thereof, and the service information supported by the NPN broadcast by the first device or the cell thereof, the information related to the NPN is carried by a base station interface establishment request message, an interface establishment reply message, or a base station configuration update message sent by the first device.

Further, the first device is a network side device, and the NPN related information includes information that is carried by a handover request message or a base station addition request message sent by the first device when the terminal selects the NPN identification information from the first device.

Further, when the first device is a terminal, the identification information of the NPN broadcast by the third device, the type information of the NPN broadcast by the third device, and the service information supported by the NPN broadcast by the third device are acquired by the terminal from the system information broadcast by the third device.

Further, in the case that the first device is a terminal, the information related to the NPN is transmitted through an air interface or an NAS layer.

Further, the first device is a terminal, and in a case that the information related to the NPN includes identification information of the NPN selected by the terminal at the second device, the first device 600 further includes:

a first receiving module, configured to receive NPN identification information supported by the second device, where the NPN identification information is broadcasted by the second device;

and the initiating module is used for selecting NPN for initiating access.

The first device 600 can implement each process implemented by the first device in the method embodiment shown in fig. 1, and is not described here again to avoid repetition.

According to the first device 600 of the embodiment of the present invention, the first device sends the information related to the NPN to the second device to notify the second device of the information related to the NPN, so that the second device can select a suitable target base station for handover or reselection based on the received information related to the NPN, thereby improving efficiency.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a second apparatus according to an embodiment of the present invention, and as shown in fig. 7, a second apparatus 700 includes:

a first receiving module 701, configured to receive information, which is sent by a first device and is related to an NPN of a non-public network; the first device is a network side device or a terminal, and the second device is a network side device.

Further, in a case that the first device is a network-side device, the NPN-related information includes at least one of the following information: identification information of the NPN broadcast by the first device or the cell thereof, priority information of the NPN broadcast by the first device or the cell thereof, type information of the NPN broadcast by the first device or the cell thereof, and service information supported by the NPN broadcast by the first device or the cell thereof;

or

Further, the first device is a network side device, and the NPN related information includes at least one of the following information: the method includes that under the condition that identification information of the NPN broadcasted by the first device or the cell thereof, priority information of the NPN broadcasted by the first device or the cell thereof, type information of the NPN broadcasted by the first device or the cell thereof, and service information supported by the NPN broadcasted by the first device or the cell thereof, the information related to the NPN is carried by a base station interface establishment request message, an interface establishment reply message or a base station configuration update message of the first device.

Further, the first device is a network side device, and the NPN related information includes information that is carried by a handover request message or a base station addition request message of the first device when the terminal selects the NPN identification information of the first device.

Further, the first device is a network side device, and the NPN related information includes identification information of an NPN selected by the terminal at the second device, where the second device 700 further includes:

the first sending module is configured to send indication information to a fourth device, where the indication information is used to indicate NPN identification information selected by the terminal, and the fourth device is a network side device.

Further, the first sending module is configured to send the indication information to the fourth device through a handover request message or a secondary base station addition message.

Further, when the first device is a terminal, the NPN identification information broadcast by the third device, the NPN type information broadcast by the third device, and the service information supported by the NPN broadcast by the third device are obtained by the terminal from the neighboring system information broadcast by the third device.

Further, the first device is a terminal, and in a case that the information related to the NPN includes identification information of the NPN selected by the terminal at the second device, the second device 700 further includes: and the broadcasting module is used for broadcasting the supported NPN identification information.

The second device 700 can implement each process implemented by the second device in the method embodiment shown in fig. 3, and is not described here again to avoid repetition.

The second device 700 according to the embodiment of the present invention receives the NPN related information sent by the first device, and can acquire the NPN related information of the first device, and when the second device performs a base station handover, the second device can select a suitable target base station for handover or reselection based on the received NPN related information, so as to improve efficiency.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a distribution unit according to an embodiment of the present invention, and as shown in fig. 8, the distribution unit 800 includes:

a first determining module 801, configured to determine information related to a first non-public network NPN by the DU;

a first sending module 802, configured to send the information related to the first NPN to a central unit CU;

alternatively, the first and second electrodes may be,

the distribution unit 800 comprises a second sending module 803 for receiving, by the DU, information related to the second NPN sent by the CU.

Further, the distribution unit 800 further includes: a second determining module, configured to determine, by the DU, a first system message carrying the information related to the first NPN;

and the second sending module is used for sending the first system message to the terminal.

Further, the distribution unit 800 further includes:

a first receiving module, configured to receive a second system message that is sent by the CU and carries the information related to the second NPN;

and the third sending module is used for sending the second system message to the terminal.

Further, the information related to the first NPN includes at least one of the following information: the identification information of the NPN broadcasted by the DU or the cell thereof, the priority information of the NPN broadcasted by the DU or the cell thereof, the type information of the NPN broadcasted by the DU or the cell thereof, and the service information supported by the NPN broadcasted by the DU or the cell thereof.

The distribution unit 800 can implement each process implemented by the distribution unit in the method embodiment shown in fig. 4, and is not described here again to avoid repetition.

The distribution unit 800 of the embodiment of the present invention enables the DU of the first device and the CU of the second device to interact with respective information related to the NPN, thereby assisting the source base station to select a suitable target base station, increasing the success rate of handover, improving handover efficiency, and improving user experience.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a concentration unit according to an embodiment of the present invention, and as shown in fig. 9, the concentration unit 900 includes:

a first determining module 901 for determining information related to a first non-public network NPN by the CU;

a second sending module 902, configured to send the information related to the first NPN to the distribution unit DU;

alternatively, the first and second electrodes may be,

the concentration unit 900 includes: a second sending module 903, configured to receive, by the CU, information related to a second NPN sent by the DU.

Further, the central unit 900 further includes:

the first determining module is used for carrying system information of information related to the first NPN;

and a third sending module, configured to send the system message to the DU.

Further, the information related to the first NPN includes at least one of the following information: the management unit comprises identification information of NPN broadcast by the CU or the cell thereof, priority information of NPN broadcast by the CU or the cell thereof, type information of NPN broadcast by the CU or the cell thereof and service information supported by NPN broadcast by the CU or the cell thereof.

The central unit 900 can implement each process implemented by the central unit in the method embodiment shown in fig. 5, and is not described here again to avoid repetition.

The central unit 900 according to the embodiment of the present invention enables the DU of the first device and the CU of the second device to interact with respective information related to the NPN, thereby assisting the source base station to select a suitable target base station, increasing the success rate of handover, improving the handover efficiency, and improving the user experience.

Referring to fig. 10, an embodiment of the present invention further provides a first device, where the first device is a network-side device, and the first device includes a bus 1001, a transceiver 1002, an antenna 1003, a bus interface 1004, a processor 1005, and a memory 1006.

The transceiver 1002 is configured to send information related to a non-public network NPN to a second device, where the second device is a network side device.

or

The first device can implement each process implemented by the network side device in the method embodiment shown in fig. 1, and details are not described here to avoid repetition.

In another embodiment of the present application, the second device is a network side device, and includes a bus 1001, a transceiver 1002, an antenna 1003, a bus interface 1004, a processor 1005, and a memory 1006. The transceiver 1002 is configured to receive information, which is sent by a first device and is related to a non-public network NPN; the first device is a network side device or a terminal, and the second device is a network side device.

or

Further, the first device is a network side device, the transceiver 1002 is further configured to send indication information to a fourth device when the NPN-related information includes identification information of the NPN selected by the terminal from the second device, the indication information is used to indicate the identification information of the NPN selected by the terminal, and the fourth device is a network side device.

Further, the transceiver 1002 is configured to send the indication information to the fourth device through a handover request message or a secondary base station addition message.

Further, the first device is a terminal, and the NPN related information includes the transceiver 1002, which is further configured to broadcast the NPN identification information supported by the terminal when the terminal selects the NPN identification information by the second device.

The second device can implement each process implemented by the network side device in the method embodiment shown in fig. 3, and is not described here again to avoid repetition.

The embodiment of the present application further provides a distribution unit DU, which includes a bus 1001, a transceiver 1002, an antenna 1003, a bus interface 1004, a processor 1005, and a memory 1006.

A processor 1005 for determining information relating to a first non-public network NPN by said DU;

a transceiver 1002 for transmitting said information relating to the first NPN to a central unit CU;

alternatively, the first and second electrodes may be,

a transceiver 1002, configured to receive, by the DU, information related to the second NPN sent by the CU.

Further, processor 1005 is further configured to determine, by the DU, a first system message carrying the information related to the first NPN;

the transceiver 1002 is further configured to send the first system message to a terminal.

Further, the distribution unit 800 further includes:

the transceiver 1002 is further configured to receive a second system message that is sent by the CU and carries the information related to the second NPN, and send the second system message to the terminal.

The distribution unit can implement each process implemented by the distribution unit in the method embodiment shown in fig. 4, and is not described here again to avoid repetition.

The embodiment of the present application further provides a central unit CU, which includes a bus 1001, a transceiver 1002, an antenna 1003, a bus interface 1004, a processor 1005, and a memory 1006.

A processor 1005 for determining information relating to a first non-public network NPN by the CU;

a transceiver 1002, configured to send the information related to the first NPN to a distribution unit DU;

alternatively, the first and second electrodes may be,

a transceiver 1002, configured to receive, by the CU, information related to the second NPN sent by the DU.

Further, a processor 1005, configured to carry a system message of information related to the first NPN;

a transceiver 1002 for transmitting the system message to the DU.

The central unit can implement each process implemented by the central unit in the method embodiment shown in fig. 5, and is not described here again to avoid repetition.

In fig. 10, a bus architecture (represented by bus 1001), bus 1001 may include any number of interconnected buses and bridges, and bus 1001 links together various circuits including one or more processors, represented by processor 1005, and memory, represented by memory 1006. The bus 1001 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. A bus interface 1004 provides an interface between the bus 1001 and the transceiver 1002. The transceiver 1002 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. Data processed by the processor 1005 is transmitted over a wireless medium via the antenna 1003, and further, the antenna 1003 receives the data and transmits the data to the processor 1005.

Processor 1005 is responsible for managing bus 1001 and general processing, and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 1006 may be used for storing data used by processor 1005 in performing operations.

Alternatively, the processor 1005 may be a CPU, ASIC, FPGA or CPLD.

Preferably, an embodiment of the present invention further provides a network-side device, which includes a processor 1005, a memory 1006, and a computer program stored in the memory 1006 and capable of running on the processor 1005, where the computer program, when executed by the processor 1005, implements the processes in the transmission method embodiments shown in fig. 1, fig. 3, fig. 4, and fig. 5, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Fig. 11 is a schematic structural diagram of a first device for implementing various embodiments of the present invention, where the terminal 1100 includes, but is not limited to: a transceiver unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, a processor 1110, a power supply 1111, and the like. Those skilled in the art will appreciate that the terminal configuration shown in fig. 6 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The first device is a terminal, and the transceiver unit 1101 is configured to send information related to the non-public network NPN to the second device; the second device is a network side device.

Further, in a case that the first device is a terminal, the NPN related information includes at least one of the following information: the method comprises the steps that identification information of NPN broadcast by third equipment, type information of NPN broadcast by the third equipment and service information supported by NPN broadcast by the third equipment are obtained; the third device is a network side device;

or

Further, the first device is a terminal, and the transceiver 1101 is further configured to, in a case that the NPN related information includes identification information of an NPN selected by the terminal at the second device: receiving identification information of NPN supported by the second device, wherein the identification information is broadcasted by the second device; the NPN initiating the access is selected.

The first device 1100 is capable of implementing each process implemented when the first device is a terminal in the method embodiment shown in fig. 1, and is not described here again to avoid repetition.

It should be understood that, in the embodiment of the present invention, the transceiver unit 1101 may be configured to receive and transmit signals during a message transmission or call process, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 1110; in addition, the uplink data is transmitted to the base station. Generally, the transceiver unit 1101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Furthermore, the transceiving unit 1101 may also communicate with a network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband internet access via the network module 1102, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 1103 may convert audio data received by the transceiving unit 1101 or the network module 1102 or stored in the memory 1109 into an audio signal and output as sound. Also, the audio output unit 1103 may also provide audio output related to a specific function performed by the terminal 1100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1104 is used to receive audio or video signals. The input Unit 1104 may include a Graphics Processing Unit (GPU) 11041 and a microphone 11042, and the Graphics processor 11041 processes image data of still pictures or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1106. The image frames processed by the graphic processor 11041 may be stored in the memory 1109 (or other storage medium) or transmitted via the transceiving unit 1101 or the network module 1102. The microphone 11042 may receive sound and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the transceiving unit 1101 in case of the phone call mode.

Terminal 1100 can also include at least one sensor 1105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 11061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 11061 and/or a backlight when the terminal 1100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 1105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., and will not be described in detail herein.

The display unit 1106 is used to display information input by a user or information provided to the user. The Display unit 1106 may include a Display panel 11061, and the Display panel 11061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 1107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 1107 includes a touch panel 11071 and other input devices 11072. The touch panel 11071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 11071 (e.g., operations by a user on or near the touch panel 11071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 11071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 1110, and receives and executes commands sent from the processor 1110. In addition, the touch panel 11071 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 1107 may include other input devices 11072 in addition to the touch panel 11071. In particular, the other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 11071 can be overlaid on the display panel 11061, and when the touch panel 11071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1110 to determine the type of the touch event, and then the processor 1110 provides a corresponding visual output on the display panel 11061 according to the type of the touch event. Although the touch panel 11071 and the display panel 11061 are shown in fig. 6 as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 11071 and the display panel 11061 may be integrated to implement the input and output functions of the terminal, and is not limited herein.

The interface unit 1108 is an interface for connecting an external device to the terminal 1100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within terminal 1100 or may be used to transmit data between terminal 1100 and external devices.

The memory 1109 may be used to store software programs as well as various data. The memory 1109 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory 1109 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1110 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 1109 and calling data stored in the memory 1109, thereby integrally monitoring the terminal. Processor 1110 may include one or more processing units; preferably, the processor 1110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1110.

The terminal 1100 can also include a power supply 1111 (e.g., a battery) for providing power to various components, and preferably, the power supply 1111 can be logically connected to the processor 1110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

In addition, the terminal 1100 includes some functional modules that are not shown, and thus, are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 1110, a memory 1109, and a computer program stored in the memory 1109 and capable of running on the processor 1110, where the computer program, when executed by the processor 1110, implements each process of the transmission method embodiment shown in fig. 1, and can achieve the same technical effect, and details are not described here to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the transmission method embodiments shown in fig. 1, fig. 3, fig. 4, and fig. 5, and can achieve the same technical effects, and details are not repeated here to avoid repetition.

The computer readable storage medium is, for example, ROM, RAM, magnetic disk or optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A transmission method for a first device, the transmission method comprising:

sending information related to the non-public network NPN to a second device;

2. The transmission method according to claim 1,

or

3. The transmission method according to claim 1, wherein the first device is a network side device, and the NPN-related information includes at least one of the following information: under the conditions of the identification information of the NPN broadcast by the first device or the cell thereof, the priority information of the NPN broadcast by the first device or the cell thereof, the type information of the NPN broadcast by the first device or the cell thereof, and the service information supported by the NPN broadcast by the first device or the cell thereof, the information related to the NPN is carried by a base station interface establishment request message, an interface establishment reply message, or a base station configuration update message sent by the first device.

4. The transmission method according to claim 1, wherein the first device is a network side device, and the NPN-related information includes identification information of an NPN selected by the terminal from the first device, and the NPN-related information is carried by a handover request message or a base station addition request message sent by the first device.

5. The transmission method according to claim 2, wherein, when the first device is a terminal, the identification information of the NPN broadcast by the third device, the type information of the NPN broadcast by the third device, and the service information supported by the NPN broadcast by the third device are obtained by the terminal from the system information broadcast by the third device.

6. The transmission method according to claim 1, wherein, when the first device is a terminal, the information related to the NPN is transmitted through an air interface or an NAS layer.

7. The transmission method according to claim 1, wherein the first device is a terminal, and the NPN-related information includes identification information of an NPN selected by the terminal at the second device, and before the sending the information related to a non-public-network NPN to the second device, the transmission method further comprises:

receiving identification information of NPN supported by the second device, wherein the identification information is broadcasted by the second device;

the NPN initiating the access is selected.

8. A transmission method for a second device, the transmission method comprising:

9. The transmission method according to claim 8,

when the first device is a network side device, the information related to the NPN includes at least one of the following information: identification information of the NPN broadcast by the first device or the cell thereof, priority information of the NPN broadcast by the first device or the cell thereof, type information of the NPN broadcast by the first device or the cell thereof, and service information supported by the NPN broadcast by the first device or the cell thereof;

or

10. The transmission method according to claim 8, wherein the first device is a network side device, and the NPN-related information includes at least one of the following information: the method includes that under the condition that identification information of the NPN broadcasted by the first device or the cell thereof, priority information of the NPN broadcasted by the first device or the cell thereof, type information of the NPN broadcasted by the first device or the cell thereof, and service information supported by the NPN broadcasted by the first device or the cell thereof, the information related to the NPN is carried by a base station interface establishment request message, an interface establishment reply message or a base station configuration update message of the first device.

11. The transmission method according to claim 8, wherein the first device is a network side device, and the NPN-related information is carried by a handover request message or a base station addition request message of the first device when the NPN-related information includes identification information of an NPN selected by the first device by the terminal.

12. The transmission method according to claim 9, wherein the first device is a network side device, and the NPN-related information includes identification information of an NPN selected by the terminal at the second device, and after the receiving information related to a non-public network NPN and sent by the first device, the transmission method further includes:

13. The transmission method according to claim 12, wherein the sending the indication information to the fourth device specifically includes: and sending the indication information to the fourth equipment through a switching request message or a secondary base station adding message.

14. The transmission method according to claim 9, wherein when the first device is a terminal, the identification information of the NPN broadcast by the third device, the type information of the NPN broadcast by the third device, and the service information supported by the NPN broadcast by the third device are obtained by the terminal from the neighbor system information broadcast by the third device.

15. The transmission method according to claim 8, wherein, when the first device is a terminal, the information related to the NPN is transmitted through an air interface or a NAS layer.

16. The transmission method according to claim 8, wherein the first device is a terminal, and the NPN-related information includes identification information of an NPN selected by the terminal at the second device, and before the receiving the information related to a non-public-network NPN sent by the first device, the transmission method further includes:

broadcast identification information for the supported NPN.

17. A transmission method for a distribution unit, DU, the transmission method comprising:

or, the DU receives information related to a second NPN sent by the CU.

18. The transmission method according to claim 17, wherein the DU determines information related to a first non-public network NPN, and wherein sending the information related to the first NPN to a central unit CU comprises:

19. The transmission method according to claim 17, wherein after the DU receives the information on the second NPN sent by the CU, the transmission method further comprises:

20. The transmission method according to claim 17, wherein the information related to the first NPN comprises at least one of the following information: the identification information of the NPN broadcasted by the DU or the cell thereof, the priority information of the NPN broadcasted by the DU or the cell thereof, the type information of the NPN broadcasted by the DU or the cell thereof, and the service information supported by the NPN broadcasted by the DU or the cell thereof.

21. A transmission method for a central unit, CU, characterized in that the transmission method comprises:

alternatively, the first and second electrodes may be,

22. The transmission method according to claim 21, wherein the CU determines NPN-related information of the non-public network, and sends the NPN-related information to the distribution unit DU, comprising:

23. The transmission method according to claim 21, wherein the information related to the first NPN comprises at least one of the following information: the management unit comprises identification information of NPN broadcast by the CU or the cell thereof, priority information of NPN broadcast by the CU or the cell thereof, type information of NPN broadcast by the CU or the cell thereof and service information supported by NPN broadcast by the CU or the cell thereof.

24. A first device, characterized in that the first device comprises: a processor and a transceiver;

25. A second device, characterized in that the second device comprises: a processor and a transceiver;

26. A distribution unit, characterized in that the distribution unit comprises: a processor and a transceiver;

alternatively, the first and second electrodes may be,

27. A concentration unit, characterized in that the concentration unit comprises: a processor and a transceiver;

alternatively, the first and second electrodes may be,

28. A first device, characterized in that the first device comprises:

29. A second device, characterized in that the second device comprises:

30. A distribution unit, characterized in that the distribution unit comprises:

alternatively, the first and second electrodes may be,

31. A concentration unit, characterized in that the concentration unit comprises:

alternatively, the first and second electrodes may be,

32. A network-side device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, wherein the computer program when executed by the processor implements the steps in the transmission method according to any one of claims 1 to 7, or wherein the computer program when executed by the processor implements the steps in the transmission method according to any one of claims 8 to 16, or wherein the computer program when executed by the processor implements the steps in the transmission method according to any one of claims 17 to 20, or wherein the computer program when executed by the processor implements the steps in the transmission method according to any one of claims 21 to 23.

33. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps in the transmission method according to any one of claims 1 to 7.

34. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps in the transmission method according to one of the claims 1 to 7, or which computer program, when being executed by the processor, carries out the steps in the transmission method according to one of the claims 8 to 16, or which computer program, when being executed by the processor, carries out the steps in the transmission method according to one of the claims 17 to 20, or which computer program, when being executed by the processor, carries out the steps in the transmission method according to one of the claims 21 to 23.