CN112738868A

CN112738868A - Distributed network access method and distributed network

Info

Publication number: CN112738868A
Application number: CN201911028513.2A
Authority: CN
Inventors: 蒋峥; 刘胜楠; 陈鹏
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2021-04-30
Anticipated expiration: 2039-10-28
Also published as: CN112738868B

Abstract

The disclosure provides a distributed network access method and a distributed network, and relates to the technical field of mobile communication. The disclosed distributed network access method includes: determining whether to allow the user to access the DU according to the special service user identification of the user initiating the access to the base station and the special network information of the distributed unit DU of the base station; under the condition that the user is determined to be allowed to access the DU, the CU informs the DU of the special service user identification of the user; and the DU schedules resources for the user according to the special service user identification and the own special network information. By the method, the resources provided for the user can be determined according to the private network information of the DU and the private service user identification of the user, so that the private network is configured for the distributed network and the private service is provided for the user, and the requirements of enterprise customers and vertical industry users are met.

Description

Distributed network access method and distributed network

Technical Field

The present disclosure relates to the field of mobile communications technologies, and in particular, to a distributed network access method and a distributed network.

Background

With the continuous development of mobile communication networks and the continuous increase of mobile data demand, mobile communication networks have become an indispensable part of people's daily work and life. From the beginning, the mobile network only carries data, and gradually changes to a network simultaneously carrying a plurality of services such as voice, data and the like. The development of mobile phones, mobile terminals and internet of things terminals enables mobile networks to carry out various kinds of work through various applications, and the mobile networks become an indispensable part of current social development, technological progress and improvement of life quality of people and become infrastructure.

At present, 5G development is comprehensively promoted in China from aspects of 5G standards, technical research and development, industrial experiments, commercial application and the like. One of the important application scenarios of 5G networks is that of networks supporting proprietary networks or vertical application industries distinct from commercial networks. Current 5G NRs mainly provide support for mobile broadband scenarios.

Disclosure of Invention

The inventor finds that the function of a 5G private or private network is not supported in the related technology, so that the special or private network built by a 5G shared network in vertical industry, specific enterprise users and the like is difficult to meet the personalized requirements of user groups.

One object of the present disclosure is to propose a solution to implement a 5G private network.

According to an aspect of some embodiments of the present disclosure, a distributed network access method is provided, including: determining whether to allow a user to access a DU (distribution Unit) according to a special service user identifier of a user initiating access to the base station and special network information of the DU of the base station; in case it is determined that the user is allowed to access the DU, the CU (Central Unit ) informs the DU of the user's dedicated service user identity; and the DU schedules resources for the user according to the special service user identification and the own special network information.

In some embodiments, the distributed network access method further comprises: and in the process of establishing interface connection between the DU and the CU, the DU sends private network information to the CU so that the CU can schedule users according to the private network information.

In some embodiments, the private network information comprises: at least one of private network cell name or private network identity, cell access mode and slice identity of the private network supported by the DU.

In some embodiments, the DU carries private network information via a special cell identity level information element added in the F1 interface SETUP REQUEST F1 SETUP REQUEST signaling.

In some embodiments, the distributed network access method further comprises: and under the condition that the cell configuration of the DU is changed, the DU sends private network information updating information to the CU so that the CU can update the stored private network information, and user scheduling is carried out according to the updated private network information.

In some embodiments, the DU sends private network information UPDATE information to the CUs through a special cell identity level information unit added in the base station-distributed unit CONFIGURATION UPDATE GNB-DU CONFIGURATION UPDATE signaling.

In some embodiments, informing the DU of the user's private service user identity by the CU comprises: the CU informs the DU of the dedicated service user identity through user context setup signaling.

In some embodiments, a terminal CONTEXT establishment REQUEST sent by the CU through the F1 interface REQUESTs that a dedicated service user identification information element added in the UE CONTEXT SETUP REQUEST information carries a dedicated service user identification; the DU obtains the user identity of the user for the specific service by parsing the UE CONTEXT SETUP REQUEST information.

In some embodiments, the distributed network access method further comprises: the CU informs the DU of the updated dedicated service user identity by modifying the user context signaling so that the DU updates the resources scheduled for the user.

In some embodiments, the CU carries the dedicated service subscriber identity of the user through a dedicated service subscriber identity information element added in the terminal CONTEXT MODIFICATION REQUEST UE CONTEXT MODIFICATION REQUEST signaling.

In some embodiments, the scheduling, by the DU, resources for the user according to the dedicated service user identity and the private network information of the DU includes: the DU determines the user type according to the special service user identification of the user; providing a predetermined general service under the condition that the user is a public user; in case the user is a dedicated service user, a predetermined dedicated service is provided.

In some embodiments, the distributed network access method further comprises: when a CU receives signal measurement information of a plurality of DUs from a user, determining a target DU to which a terminal is switched according to the signal intensity and the private network information of the DUs; a CU transmits target DU information to a user through RRC (Radio Resource Control) information; when a user accesses a target DU, a CU informs the target DU of the special service user identification of the user; the target DU schedules resources for the user according to the special service user identification and the own special network information.

In some embodiments, the private network information conforms to one or more of: the private network cell Name is carried by a private network Name NPN-Name field of an OCTET String OCTET String data type; the private network identification is carried by a private network identification NPN-Identity field of a binary String BIT String data type; indicating whether the cell is a private network cell or not through a private network Indication NPN-Indication field of a Boolean data type; or, in the case that the cell access mode is Public, the cell only allows the Public user to access; in the case of hybrid cell access mode, public and private users are allowed to access; in case the cell access mode is Private, only Private users are allowed access.

In some embodiments, the dedicated service user identification comprises: enumerating the member identity information of the private network; and a private network identification list for carrying private network identifications of one or more cells supported by the user.

By the method, the resources provided for the user can be determined according to the private network information of the DU and the private service user identification of the user, so that the private network is configured for the distributed network and the private service is provided for the user, and the requirements of enterprise customers and vertical industry users are met.

According to an aspect of further embodiments of the present disclosure, there is provided a distributed network, including: the core network is configured to determine whether to allow the user to access the DU according to the special service user identification of the user initiating the access to the base station and the special network information of the DU of the base station; a CU configured to inform the DU of the user's dedicated service user identity through user context setup signaling if it is determined that the user is allowed to access the DU; and the DU is configured to schedule resources for the user according to the special service user identification and the own private network information.

According to an aspect of still further embodiments of the present disclosure, a distributed network is provided, including: a memory; and a processor coupled to the memory, the processor configured to perform any of the above distributed network access methods based on instructions stored in the memory.

The distributed network can determine the resources provided for the user according to the private network information of the DU and the private service user identification of the user, thereby realizing the configuration of the private network for the distributed network and the provision of the private service for the user, and meeting the requirements of enterprise customers and vertical industry users.

According to an aspect of still further embodiments of the present disclosure, a computer-readable storage medium is proposed, on which computer program instructions are stored, which instructions, when executed by a processor, implement the steps of any of the above distributed network access methods.

By executing the instructions on the computer-readable storage medium, the resources provided for the user can be determined according to the private network information of the DU and the user identification of the user, so that the configuration of the private network for the distributed network and the provision of the private service for the user are realized, and the requirements of enterprise customers and vertical industry users are met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

fig. 1 is a flow diagram of some embodiments of a distributed network access method of the present disclosure.

Fig. 2A-2D are schematic diagrams of some embodiments of signaling interactions in a distributed network access method of the present disclosure.

Fig. 3 is a flow diagram of further embodiments of a distributed network access method of the present disclosure.

Fig. 4 is a schematic diagram of some embodiments of a distributed network of the present disclosure.

Fig. 5 is a schematic diagram of further embodiments of a distributed network of the present disclosure.

Fig. 6 is a schematic diagram of still further embodiments of a distributed network of the present disclosure.

Detailed Description

The technical solution of the present disclosure is further described in detail by the accompanying drawings and examples.

A flow diagram of some embodiments of the distributed network access method of the present disclosure is shown in fig. 1.

In step 102, it is determined whether to allow the user to access the DU according to the dedicated service user id of the user initiating the access to the base station and the private network information of the DU of the base station. In some embodiments, the CU may store therein private network information of DUs that have established an interface with itself (e.g., F1 interface). In some embodiments, the private network information may include at least one of a private network cell name or a private network identity, a cell access mode, and a slice identity supported by the DU.

In some embodiments, the CU may obtain the private network information of the DU during the process of establishing an interface connection with the DU. As before step 102, step 101 may also be included: and in the process of establishing interface connection between the DU and the CU, the DU sends private network information to the CU so as to facilitate the CU to store the private network information, and carries out user scheduling according to the private network information.

In step 103, the CU informs the DU of the user's dedicated service user identity in case it is determined that the user is allowed to access the DU. In some embodiments, a dedicated service user identifier may be added to the setup user context signaling sent to the DU, so that the DU parses the setup user context signaling to obtain the dedicated service user identifier.

In step 104, the DU schedules resources for the user according to the dedicated service user identity and its own private network information. In some embodiments, the DU may be accessible to both public and private users, providing different services to the public and private users. In some embodiments, the DU determines the user type according to the dedicated service user identity, and then uses the matched predetermined resource configuration as the scheduling resource for the user. For example, if the user is a dedicated service user, the user can be given a higher service guarantee capability, and if the user is a public user, the general service guarantee capability is satisfied.

By the method, resources provided for the user can be determined according to the private network information of the DU and the private service user identification of the user, so that the private network can be configured for the distributed network and the private service can be provided for the user, and a network operator can set an independent private or private network for enterprise customers and vertical industry users according to the requirements of the enterprise customers and the vertical industry users on the basis of the distributed public network, so that the service is provided for the specific users, the flexibility of network configuration is improved, and the user experience is improved.

In some embodiments, the field extension may be performed on the basis of a 5G communication protocol, including:

adding a private network cell identifier: the special network cell number is used for marking, if the mark is empty, the cell is not a special network cell; if the identity is not null, it indicates that the cell is a dedicated cell or a hybrid cell. For example: the field is NPN-Identity and the data type is BIT STRING (SIZE (32)).

Adding a private network indication: indicating that the cell is a particular private cell. If the indication field is FALSE or null, it indicates that the cell is a hybrid cell; if TRUE, the cell is a dedicated cell. For example: the field is NPN-Indication and the data type is BOOLEAN.

Private network cell names are added, and can be used for distinguishing and identifying private network cells. For example: the field is NPN-Name and the data type is OCTET STRING (SIZE (1.. 32)).

In some embodiments, the user's private service user identification is used to identify the user's private network cell service qualifications. The dedicated service user identification comprises:

NPN Membership Status ENGERED (private network Membership information enumeration, wherein when the information is number, the special network cell access qualification is met, and when the information is not-number, the special network cell access qualification is not met);

NPN Membership ID List { NPN-Identity List } (private network identification List: private network cell identification NPN-Identity identifying all private network cells supported by the current user)

In some embodiments, the DUs may be configured with different cell access patterns to indicate the types of users that the cell is allowed to access. The Cell Access Mode may include: { Public, hybrid, Private } option.

Public: indicating that a public user can access;

hybrid cyber-means that both public and private users can access; different resources may be configured for public and private users.

Private — means that only Private users can access.

By the method, improvement can be made on the basis of the current protocol, so that the private network DU can be distinguished and identified, and a way for establishing a private network and meeting the requirements of enterprise customers and users in the vertical industry is provided on the basis of not influencing the existing network service.

In some embodiments, the DU may report the cell-specific network information to the CU when an interface connection is established with the CU, for example, when an F1 interface connection is established. The private network information may include private network cell identities, slice identities, and cell access modes supported by the current DU.

Taking the 5G NR system as an example, as shown in FIG. 2A:

in 201, a special cell identity level IE (Information Element) is added to the F1 SETUP REQUEST signaling. When a base station NG-RAN (radio access network) DU sends F1 SETUP REQUEST to establish F1 interface connection with an NG-RAN CU, the NG-RAN CU is informed of private network cell name/private network identification, slice identification and cell access mode supported by the NG-RAN DU through F1 SETUP REQUEST signaling, and the NG-RAN CU carries out scheduling and mobility management on users qualified for private network cell service based on the information.

In 202 the NG-RAN CU sends a RESPONSE message of F1 SETUP RESPONSE to the NG-RAN DU.

By the method, the private network information of the DU can be uploaded to the CU based on the existing process of establishing connection between the DU and the CU, so that the CU can control the service and the mobility of the access user, the signaling influence on the existing network is reduced, and the extra signaling overhead is avoided.

In some embodiments, when the cell configuration of the DU changes, the DU needs to update the private network cell identity, the cell access mode, and the slice identity supported by the cell to the CU.

Taking the 5G NR system as an example, as shown in FIG. 2B:

in 211, a special cell identity level IE is added to the GNB-DU CONFIGURATION UPDATE signaling, when the base station NG-RAN DU sends the GNB-DU CONFIGURATION UPDATE signaling to the NG-RAN CU through the F1 interface to UPDATE the cell information, the NG-RAN CU obtains the private network cell name/private network identity and priority, the cell access mode, and the slice identity that are newly supported by the NG-RAN DU through the signaling, and the NG-RAN CU schedules and manages the mobility of the users with the private network cell service qualification based on the above information.

In 212, a GNB-DU CONFIGURATION UPDATE ACKNOWLEDGE response message is sent to the NG-RAN DU.

By the method, the private network information updated by the DU can be uploaded to the CU based on the existing information updating process between the DU and the CU, so that the CU can update the service and the mobility of the access user in time, the signaling influence on the existing network is reduced, and the extra signaling overhead is avoided.

In some embodiments, when a CU determines a DU to which a user needs to access, the CU carries a dedicated service user identifier in a setup user context signaling, and the DU determines whether the user is a dedicated service user according to the dedicated service user identifier, and reasonably schedules user resources according to a cell service type (whether the cell is a dedicated network cell or a cell access mode) supported by the DU itself.

Taking the 5G NR system as an example, as shown in FIG. 2C:

in 221, a dedicated service user identifier IE is added to the UE CONTEXT SETUP REQUEST signaling, when the NG-RAN CU sends the UE CONTEXT SETUP REQUEST message through the F1 interface, the dedicated service user identifier is sent to the NG-RAN DU, the NG-RAN DU obtains the state of the dedicated service user identifier of the user through the signaling, and the NG-RAN DU performs resource scheduling and information sending on the user qualified for the private network cell service based on the above information.

In 222, a RESPONSE message of the UE CONTEXT SETUP RESPONSE is sent to the NG-RAN CU.

By the method, the special service user identification of the user can be timely sent to the DU based on the existing information sending process between the CU and the DU, so that the DU can carry out differentiated and personalized resource scheduling on the user, the signaling influence on the existing network is reduced, and the additional signaling overhead is avoided.

In some embodiments, when the user parameter changes, the CU carries a dedicated service user identifier in the modified user context signaling, the DU determines whether the user is a dedicated service user according to the dedicated service user identifier, and adaptively adjusts scheduling for the user resource according to a cell service type supported by the DU itself.

Taking the 5G NR system as an example, as shown in FIG. 2D:

in 231, a dedicated service user identifier IE is added to a UE CONTEXT MODIFICATION REQUEST signaling, when an NG-RAN CU sends a UE CONTEXT MODIFICATION REQUEST message through an F1 interface, the dedicated service user identifier is sent to an NG-RAN DU, the NG-RAN DU obtains a dedicated service user identifier state of a user through the signaling, and the NG-RAN DU performs resource scheduling and information sending on the user with the qualification of the private network cell service based on the information.

In 232, the RESPONSE information of the UE CONTEXT MODIFICATION RESPONSE is sent to the NG-RAN CU.

By the method, the special service user identification updated by the user can be timely sent to the DU based on the existing information updating process between the CU and the DU, so that the DU can carry out differentiated and personalized resource scheduling modification on the user, the signaling influence on the existing network is reduced, and the additional signaling overhead is avoided.

In some embodiments, when a user moves between DUs, the used DUs need to be handed over. A flow chart of further embodiments of the distributed network access method of the present disclosure is shown in fig. 3.

In step 301, when the dedicated service subscriber moves between DUs, a plurality of DU signal measurement information (e.g., including private network cell id, cell access mode, slice id) is reported to the CU. When receiving signal measurement information of a plurality of DUs from a user, a CU determines a target DU to which a terminal is switched according to the signal strength and the private network information of the DUs. In some embodiments, a CU may consider the DU signal strength, the private network cell identity, the cell access mode, the private network slice identity, and the DU load, and further select a target DU that can meet the user access requirement, can provide service to the user, and has a smaller current load amount.

In step 302, the CU transmits target DU information to the user through RRC information.

In step 303, when the user accesses the target DU, the CU informs the target DU of the user's private service user identity.

In step 304, the target DU schedules resources for the user according to the dedicated service user id and its own private network information. In some embodiments, the CU may inform the DU through user context modification signaling according to the change of the user status, so that the DU may adopt an appropriate scheduling policy according to the change of the user service status.

By the method, when the user moves between coverage areas of the DU, the DU can be switched in time, and the DU is distributed to the user according to the special service user identification of the user, thereby ensuring to provide the service matched with the special service user identification of the user and ensuring the signal quality and the service quality of the special network user.

A schematic diagram of some embodiments of the distributed network of the present disclosure is shown in fig. 4.

The core network 41 can determine whether to allow the user to access the DU according to the dedicated service user id of the user initiating the access to the base station and the dedicated network information of the DU of the base station. In some embodiments, the CU may store private network information of the DU that has established an interface connection with itself (e.g., F1 interface connection), and the core network may determine whether to allow the user to access the DU according to the information reported by the CU. In some embodiments, during the process of the DU interfacing with the CUs, the DU sends private network information to the CUs for storage by the CUs and performs user scheduling according to the private network information.

CU42 is able to inform the DU of the user's dedicated service user identity through user context setup signaling through the FI interface with the DU, in case it is determined that the user is allowed to access the DU.

The DUs 431-43 n can schedule resources for users according to the private service user identification and the private network information of the users.

In some embodiments, the CU and DU may interact with each other in a manner as in any of the embodiments above.

The distributed network can determine the resources provided for the user according to the private network information of the DU and the private service user identification of the user, thereby realizing the configuration of the private network for the distributed network and the provision of the private service for the user, and meeting the requirements of enterprise customers and vertical industry users. A schematic diagram of one embodiment of the various parts of the distributed network of the present disclosure is shown in fig. 5. Each portion of the distributed network may include a memory 501 and a processor 502. Wherein: the memory 501 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is for storing instructions in the corresponding embodiments of the distributed network access method above. The processor 502 is coupled to the memory 501 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 502 is configured to execute instructions stored in the memory, and can implement configuring a private network for a distributed network and providing a dedicated service for a user, so as to meet the requirements of enterprise customers and vertical industry users.

In one embodiment, as also shown in FIG. 6, various portions of distributed network 600 include memory 601 and processor 602. The processor 602 is coupled to the memory 601 by a BUS 603. The distributed network 600 may also be coupled to external storage 605 via storage interface 604 for the purpose of invoking external data, and to a network or another computer system (not shown) via network interface 606. And will not be described in detail herein.

In the embodiment, the data instructions are stored in the memory and processed by the processor, so that the configuration of a private network for a distributed network and the provision of special services for users can be realized, and the requirements of enterprise customers and vertical industry users are met.

In another embodiment, a computer readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the method in a corresponding embodiment of the distributed network access method. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

The methods and apparatus of the present disclosure may be implemented in a number of ways. For example, the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

Finally, it should be noted that: the above examples are intended only to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the disclosure or equivalent substitutions for parts of the technical features may still be made; all such modifications are intended to be included within the scope of the claims of this disclosure without departing from the spirit thereof.

Claims

1. A distributed network access method, comprising:

determining whether to allow the user to access the DU according to the special service user identification of the user initiating the access to the base station and the special network information of the distributed unit DU of the base station;

under the condition that the user is determined to be allowed to access the DU, the CU informs the DU of the special service user identification of the user;

and the DU schedules resources for the user according to the special service user identification and the own special network information.

2. The method of claim 1, further comprising:

and in the process of establishing interface connection between the DU and the CU, the DU sends private network information to the CU so that the CU can schedule users according to the private network information.

3. The method of claim 1, wherein the private network information comprises:

at least one of private network cell name or private network identity, cell access mode and slice identity of the private network supported by the DU.

4. The method according to claim 2 or 3, wherein said DU carries said private network information via a special cell identity level information element added in F1 interface SETUP REQUEST F1 SETUP REQUEST signaling.

5. The method of claim 2, further comprising: and under the condition that the cell configuration of the DU is changed, the DU sends private network information updating information to the CU so that the CU can update the stored private network information, and user scheduling is carried out according to the updated private network information.

6. The method of claim 5, wherein the DU sends private network information UPDATE information to the CUs through base station-distributed unit CONFIGURATION UPDATE GNB-DU CONFIGURATION UPDATE signaling.

7. The method of claim 1, wherein the CU informing the DU of the user's dedicated service user identity comprises:

the CU informs the DU of the dedicated service subscriber identity through user context setup signaling.

8. The method as claimed in claim 7, wherein the CU sends the terminal CONTEXT SETUP REQUEST through F1 interface with the dedicated service user identification information element added to the UE CONTEXT SETUP REQUEST information carrying the dedicated service user identification;

and the DU obtains the special service user identification of the user by analyzing the UE CONTEXT SETUP REQUEST information.

9. The method of claim 1 or 7, further comprising:

the CU informs the DU of the updated dedicated service user identity by modifying the user context signaling so that the DU updates the resources scheduled for the user.

10. The method as claimed in claim 9, wherein the CU carries the user's dedicated service subscriber identity through a dedicated service subscriber identity information element added in the terminal CONTEXT MODIFICATION REQUEST UE CONTEXT MODIFICATION REQUEST signaling.

11. The method of claim 1, wherein the scheduling resources for the user by the DU according to the dedicated service user identity and its own private network information comprises:

the DU determines the user type according to the special service user identification of the user;

providing a predetermined general service under the condition that the user is a public user;

in case the user is a dedicated service user, a predetermined dedicated service is provided.

12. The method of claim 1, further comprising:

under the condition that the CU receives signal measurement information of a plurality of DUs from a user, the CU determines a target DU to which the terminal is switched according to the signal intensity and the private network information of the DUs;

the CU sends target DU information to a user through Radio Resource Control (RRC) information;

when a user accesses a target DU, a CU informs the target DU of the special service user identification of the user;

and the target DU schedules resources for the user according to the special service user identification and the self special network information.

13. The method of claim 3, wherein the private network information conforms to one or more of:

the private network cell Name is carried by a private network Name NPN-Name field of an OCTET String OCTET String data type;

the private network identification is carried by a private network identification NPN-Identity field of a binary String BIT String data type;

indicating whether the cell is a private network cell or not through a private network Indication NPN-Indication field of a Boolean data type; or the like, or, alternatively,

under the condition that the cell access mode is Public, the cell only allows Public users to access; in the case of hybrid cell access mode, public and private users are allowed to access; in case the cell access mode is Private, only Private users are allowed access.

14. The method of claim 1, wherein the dedicated service user identity comprises:

enumerating the member identity information of the private network; and

and the private network identification list is used for carrying private network identifications of one or more cells supported by the user.

15. A distributed network, comprising:

the core network is configured to determine whether to allow the user to access the DU according to the special service user identification of the user initiating the access to the base station and the special network information of the distributed unit DU of the base station;

a central unit CU configured to inform the DU of the user's dedicated service user identity via user context setup signaling, if it is determined that the user is allowed to access the DU;

and the DU is configured to schedule resources for the user according to the special service user identification and the private network information of the DU.

16. A distributed network, comprising:

a memory; and

a processor coupled to the memory, the processor configured to perform the method of any of claims 1-14 based on instructions stored in the memory.

17. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any one of claims 1 to 14.