CN111132376B

CN111132376B - Management method and device for dual-connection ENDC link

Info

Publication number: CN111132376B
Application number: CN201811296516.XA
Authority: CN
Inventors: 陈萍
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2021-08-27
Anticipated expiration: 2038-11-01
Also published as: CN111132376A

Abstract

The present invention relates to the field of communications, and in particular, to a method and an apparatus for managing a dual-connection ENDC link. The method is used for ensuring the continuity of service transmission, and comprises the following steps: and the OM receives the link state description information sent by the DD, judges the establishment state of the SCTP link, determines that the establishment state of the SCTP link is not established and when an ENDC type link needs to be established, establishes the SCTP link with the type of ENDC, determines that the connection state of the SCTP link is disconnected and deletes the SCTP link with the type of ENDC when the ENDC type link needs to be deleted. Thus, the OM can complete the management of the SCTP link of the ENDC type based on the received link state description information, and the 5G GNB can transmit the user service using the core network of the LTE ENB, thereby ensuring that the service is not interrupted, improving the utilization rate of wireless resources, satisfying the high-capacity requirement of the user, and further improving the systematicness.

Description

Management method and device for dual-connection ENDC link

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for managing a dual-connection ENDC link.

Background

Long Term Evolution (LTE) is a UMTS (Universal Mobile Telecommunications System) technical standard organized by 3GPP (The 3rd Generation Partnership Project, third Generation Partnership Project), and a network architecture of The LTE System is more flattened and simplified, and network nodes and System complexity are reduced, thereby reducing System delay, network deployment and maintenance costs.

With the rapid development of mobile communication technology, a Fifth Generation mobile communication (5G) system starts to be put into the market, but the 5G system cannot completely replace an LTE system, and in a multi-base station communication scenario in which the 5G system and the LTE system share an LTE core network, the 5G system needs to provide services for a user by using existing facilities of the LTE system to meet service requirements of the user, so that a phenomenon that the 5G system and the LTE system coexist may occur, however, at present, there are two transmission links in the LTE system, that is, an S1 link from a base station to a core network and an X2 link from the base station to the base station, a transmission link between the 5G base station and the LTE core network is not established in the existing scheme, and the 5G system cannot transmit all Radio Resource Control (RRC) messages by using the core network of the LTE system, so that the user cannot access the network.

In addition, with the increase of the distribution demand of hot spots, dense networking is more and more common as a common capacity expansion means, because a plurality of cells or base stations are concentrated in dense sites, if a user frequently switches the base stations when moving in the dense sites, not only is the interference problem brought, but also the switching performance can be influenced, the call drop is caused, the capacity demand and the coverage demand of the user cannot be met, and the service reliability is reduced.

Therefore, it is necessary to design a management method of a Dual Connectivity (ENDC) link to solve the above problem.

Disclosure of Invention

The invention aims to provide a management method and a management device for a dual-connection ENDC link, which are used for improving the utilization rate of wireless resources and ensuring the effective transmission performance of services.

A method of managing a dual-connection endec link, comprising:

an operation maintenance system OM receives link state description information sent by a database DD, and judges the establishment state of a stream transmission control protocol SCTP link between an LTE (Long term evolution) base station ENB and a 5G base station GNB according to the link state description information;

OM confirms the establishment state of the said SCTP periodic line is not established according to the judged result, and when confirming that needs to establish the periodic line of the dual connection ENDC type according to the state description information of the said periodic line, establish the SCTP periodic line of the type ENDC between said ENB and said GNB;

and the OM determines that the connection state of the SCTP link is disconnected according to the judgment result, and deletes the SCTP link with the type of ENDC between the ENB and the GNB when determining that the link with the type of ENDC needs to be deleted according to the link state description information.

Optionally, before the OM receives the link state description information sent by the DD and determines the establishment state of the stream transmission control protocol SCTP link between the long term evolution LTE base station ENB and the 5G base station GNB according to the link state description information, the method further includes:

OM receives the configuration driving message sent by DD, and when determining that there is no ENDC type in the link types of the SCTP link between the LTE ENB and the 5G GNB, the ENDC type is added in the link types of the SCTP link.

Optionally, when the OM determines that the establishment state of the SCTP link is not established according to the determination result, and determines that a dual-connection ENDC type link needs to be established according to the link state description information, after the SCTP link whose type is ENDC is established between the ENB and the GNB, the method further includes:

and OM sends link establishment information to an AP, and informs the AP of needing to establish the SCTP link with the type of ENDC between the ENB and the GNB, wherein the link establishment information carries the identification ID of the SCTP link needing to be established.

Optionally, when OM determines that the connection state of the SCTP link is disconnected and determines that the link of the type of the ENDC needs to be deleted according to the link state description information, after deleting the SCTP link of the type of the ENDC between the ENB and the GNB, the method further includes:

and OM sends link disconnection information to the AP, and informs the AP that the SCTP link with the type of ENDC needs to be deleted between the ENB and the GNB, wherein the link deletion information carries the ID of the SCTP link needing to be deleted.

Optionally, the OM further includes, after establishing an SCTP link of the type ENDC between the ENB and the GNB:

and after the OM sends the link establishment information to the AP, triggering the AP to send neighbor configuration parameter information to a Mobility Management Entity (MME), and triggering the MME to judge whether an SCTP link exists between the new 5G GBR and the LTE ENB with the SCTP link established.

A management apparatus of a dual-connection endec link, optionally comprising:

the judging unit is used for receiving the link state description information sent by the database DD and judging the establishment state of a stream transmission control protocol (SCTP) link between an LTE (Long term evolution) base station ENB and a 5G base station GNB according to the link state description information;

the establishing unit is used for establishing the SCTP link with the type of ENDC between the ENB and the GNB when the establishing state of the SCTP link is determined to be not established according to the judgment result and the link with the type of dual-connection ENDC is determined to be established according to the link state description information;

and the deleting unit is used for determining that the connection state of the SCTP link is disconnected according to the judgment result, and deleting the SCTP link with the type of ENDC between the ENB and the GNB when determining that the link with the type of ENDC needs to be deleted according to the link state description information.

Optionally, before receiving link state description information sent by the DD and determining, according to the link state description information, an establishment state of a stream transmission control protocol SCTP link between a long term evolution LTE base station ENB and a 5G base station GNB, the determining unit is further configured to:

and receiving a configuration driving message sent by a DD, and adding an ENDC type in the link types of the SCTP link when determining that no ENDC type exists in the link types of the SCTP link between the LTE ENB and the 5G GNB.

Optionally, when the establishment state of the SCTP link is determined to be not established according to the determination result, and it is determined that a dual-connection ENDC type link needs to be established according to the link state description information, after an SCTP link whose type is ENDC is established between the ENB and the GNB, the establishing unit is further configured to:

and sending link establishment information to an AP (access point), and informing the AP of needing to establish an SCTP (stream control transmission protocol) link of which the type is ENDC (enhanced traffic control protocol) between the ENB and the GNB, wherein the link establishment information carries an identification ID (identity) of the SCTP link needing to be established.

Optionally, when determining that the connection state of the SCTP link is disconnected and determining that the link of the type of the ENDC needs to be deleted according to the link state description information, after deleting the SCTP link of the type of the ENDC between the ENB and the GNB, the deleting unit is further configured to:

and sending link disconnection information to an AP (access point), and informing the AP of deleting the SCTP link with the type of ENDC between the ENB and the GNB, wherein the link deletion information carries the ID of the SCTP link needing to be deleted.

Optionally, after an SCTP link of the type ENDC is established between the ENB and the GNB, the establishing unit is further configured to:

and after the link establishment information is sent to the AP, triggering the AP to send neighbor cell configuration parameter information to a Mobility Management Entity (MME), and triggering the MME to judge whether an SCTP link exists between the new 5G GBR and the LTE ENB with the SCTP link established.

A storage medium, optionally, storing a program for implementing a management method of an endec, the program, when executed by a processor, performing the steps of:

receiving link state description information sent by a database DD, and judging the establishment state of a stream transmission control protocol (SCTP) link between an LTE (Long term evolution) base station ENB and a 5G base station GNB according to the link state description information;

determining that the establishment state of the SCTP link is not established according to the judgment result, and establishing an SCTP link of which the type is ENDC between the ENB and the GNB when determining that a link of a dual-connection ENDC type needs to be established according to the link state description information;

and determining that the connection state of the SCTP link is disconnected according to the judgment result, and deleting the SCTP link with the type of ENDC between the ENB and the GNB when determining that the link with the type of ENDC needs to be deleted according to the link state description information.

A communications apparatus, optionally, comprising one or more processors; and one or more computer-readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform the method of any of the above.

To sum up, in the embodiment of the present invention, the OM receives the link state description information sent by the DD, determines the establishment state of the SCTP link between the LTE ENB and the 5G GNB, then, when it is determined that the establishment state of the SCTP link is not established and the ENDC-type link needs to be established, establishes the SCTP link of the type ENDC, and determines that the connection state of the SCTP link is disconnected and the ENDC-type link needs to be deleted, deletes the SCTP link of the type ENDC. In this way, the OM can complete the management of the SCTP link of the ENDC type based on the received link state description information, and improve the management effectiveness, and the 5G GNB can transmit the user service using the core network of the LTE ENB, thereby ensuring that the service is not interrupted, improving the utilization rate of wireless resources, satisfying the high-capacity demand of the user, further improving the user experience, and improving the system performance.

Drawings

FIG. 1 is a schematic ENDC management flow diagram in an embodiment of the present invention;

fig. 2 is a schematic diagram of a neighboring cell configuration updating process in the embodiment of the present invention;

fig. 3 is a schematic diagram of an OM functional 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiment of the present invention, referring to fig. 1, a detailed management flow for the endec is as follows:

step 100: an Operation and Maintenance system (OM) receives link state description information sent by a database (Data Base, DD).

Specifically, in the embodiment of the present invention, the DD sends the link state description information O _ STRAN _ MTRAN _ SCTP _ STATUS _ RPT to the OM, and notifies the OM to change the link state of the Stream Control Transmission Protocol (SCTP) link.

Step 101: and the OM judges the establishment state of the SCTP link between the LTE base station (eNodeB, ENB) and the 5G base station (Generation NodeB, GNB) according to the link state description information, if the establishment state of the SCTP link is that the OSP _ SCTP _ COMM _ UP is not established, step 102 is executed, otherwise, step 105 is executed.

Step 102: OM according to the link state description information, when determining that the link of the ENDC type needs to be established, establishing an SCTP link of the type of ENDC between the ENB and the GNB.

Specifically, in the embodiment of the present invention, when it is further determined that the link type to be established is endec based on the link state description information sent by the DD, the OM establishes an SCTP link whose link type is endec between the LIE ENB and the 5G GNB, where the SCTP link includes multiple types of links, and the endec is one of the SCTP links.

Step 103: OM sends the link establishment information to the AP.

Specifically, in the embodiment of the present invention, after further determining that a link of the endec type needs to be established, the OM sends link establishment information O _ AOMX2AP _ endec _ SCTP _ CFG _ REQ to the AP, and notifies the AP that an SCTP link of the endec type needs to be established, where the link establishment information carries an identifier (Identity, ID) of the SCTP link that needs to be established.

Step 104: the AP returns link establishment response information to the OM.

Specifically, in the embodiment of the present invention, if the link establishment response information returned by the OM receiving AP is O _ X2AP am _ SCTP _ CFG _ RSP, the OM determines that the SCTP link whose link type is endec is successfully established, and if the link establishment response information returned by the OM receiving AP is O _ X2AP am _ SCTP _ CFG _ RSP, the OM determines that the SCTP link whose link type is endec is unsuccessfully established.

Step 105: OM determines the establishment state of the SCTP link to be disconnection OSP _ SCTP _ COMM _ LOST, and deletes the SCTP link with the type of ENDC between the ENB and the GNB when determining that the link with the type of ENDC needs to be deleted according to the link state description information.

Specifically, in the embodiment of the present invention, when it is further determined that the link type to be deleted is endec based on the link state description information sent by the DD, the OM deletes the SCTP link whose link type is endec between the LIE ENB and the 5G GNB.

Step 106: and the OM sends the link disconnection information to the AP.

Specifically, in the embodiment of the present invention, after further determining that the link of the endec type needs to be deleted, the OM sends link disconnection information O _ AOMX2AP _ endec _ SCTP _ CFG _ FAIL _ REQ to the AP, and notifies the AP that the SCTP link of the endec type needs to be deleted, where the link disconnection information carries the SCTP link ID that needs to be deleted.

Step 107: the AP returns link deletion response information to the OM.

Specifically, in the embodiment of the present invention, the OM receives link deletion response information O _ X2 apaxm _ SCTP _ FAIL _ RSP returned by the AP, and determines that the SCTP link whose link type is specified in the link state change information is successfully deleted.

Step 108: and OM determines that the configuration updating process is finished.

Specifically, in the embodiment of the present invention, after receiving the link establishment response information or the link deletion response information returned by the AP, the OM determines to establish the SCTP link whose link type is the ENDC, or determines to end the configuration update process after deleting the SCTP link whose link type is the ENDC.

In the embodiment of the present invention, referring to fig. 2, a Mobility Management Entity (MME) may also perform configuration update on a neighboring cell that establishes an SCTP link of an endec type, where a detailed flow of the configuration update of the neighboring cell is as follows:

step 200: and the MME receives the neighbor cell configuration parameter information which is sent by the AP and comprises the new 5G GNB.

Specifically, in the embodiment of the present invention, after an endec type SCTP link is successfully established, an MME receives neighbor configuration parameter information O _ X2 apaxm _ endx 2SETUP _ NOTIFY _ NRCELL sent by an AP, where the neighbor configuration parameter information carries an ID length of a 5G GNB, an ID of a neighbor base station, and an SCTP link ID, where the neighbor base station is a new 5G GNB adjacent to the 5G GNB.

Step 201: the MME determines whether an SCTP link exists between the new 5G GBR and the LTE ENB that has already established the SCTP link, and if an SCTP link exists between the new 5G GNB and the LTE ENB, performs step 202, otherwise, performs step 205.

Step 202: the MME determines whether an idle position can be found in the neighbor base station list, if the MME can find the idle position in the neighbor base station list, step 203 is executed, otherwise, step 204 is executed.

Step 203: the MME adds the information of the new 5G GNB to the neighbor base station list.

Specifically, in the embodiment of the present invention, after determining that an idle position can be found in the neighbor base station list, the MME adds new information of the 5G GNB to the neighbor base station list, that is, adds a routing relationship table of an SCTP link established between the new 5G GNB and the LTE ENB in the neighbor base station list, where the new information of the 5G GNB includes a GNB global ID significant digit, a GNB global ID, an SCTP link state index, and the like.

Step 204: and the MME sends the configuration adding failure information to the OM.

That is, when the MME determines that a free position cannot be found in the neighbor base station list to add information of a new 5G GNB, the MME sends configuration addition failure information to the OM.

Step 205: and the MME determines that the updating process of the neighboring cell configuration is finished.

That is, when the MME determines that there is no SCTP link between the new 5G GNB and the LTE ENB, the configuration update procedure is ended, or when the MME determines that an idle position cannot be found in the neighbor base station list to add information of the new 5G GNB, the MME sends configuration addition failure information to the OM and then ends the configuration update procedure.

Based on the above embodiments, referring to fig. 3, in an embodiment of the present invention, OM at least includes: a judging unit 101, a creating unit 102, and a deleting unit 103, wherein,

a determining unit 101, configured to receive link state description information sent by the database DD, and determine, according to the link state description information, a state of establishment of a stream transmission control protocol SCTP link between a long term evolution LTE base station ENB and a 5G base station GNB;

an establishing unit 102, configured to determine, according to the determination result, that the establishment state of the SCTP link is not established, and when it is determined that a dual-connection ENDC type link needs to be established according to the link state description information, establish an SCTP link of which the type is ENDC between the ENB and the GNB;

a deleting unit 103, configured to determine, according to the determination result, that the connection state of the SCTP link is disconnected, and delete the SCTP link whose type is the ENDC between the ENB and the GNB when it is determined that the link of the ENDC type needs to be deleted according to the link state description information.

Optionally, before receiving link state description information sent by the DD and determining, according to the link state description information, an establishment state of a stream transmission control protocol SCTP link between a long term evolution LTE base station ENB and a 5G base station GNB, the determining unit 101 is further configured to:

Optionally, when determining that the establishment state of the SCTP link is not established according to the determination result, and determining that a dual-connection ENDC type link needs to be established according to the link state description information, after establishing an SCTP link of which the type is ENDC between the ENB and the GNB, the establishing unit 102 is further configured to:

Optionally, when determining that the connection state of the SCTP link is disconnected and determining that the link of the type of the ENDC needs to be deleted according to the link state description information, after deleting the SCTP link of the type of the ENDC between the ENB and the GNB, the deleting unit 103 is further configured to:

Optionally, after an SCTP link of the type ENDC is established between the ENB and the GNB, the establishing unit 102 is further configured to:

Based on the same inventive concept, an embodiment of the present invention provides a storage medium storing a program for implementing a management method of an endec, the program, when executed by a processor, performing the steps of:

Based on the same inventive concept, the embodiment of the invention provides a communication device, which comprises one or more processors; and one or more computer-readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform the method of any of the above.

In summary, in the embodiment of the present invention, first, an OM receives link state description information sent by a DD, determines a setup state of an SCTP link between LTE ENB and 5G GNB, then determines that the setup state of the SCTP link is not setup, and when it is determined that an ENDC-type link needs to be setup, sets up an SCTP link of a type ENDC, determines that a connection state of the SCTP link is disconnected, and when it is determined that an ENDC-type link needs to be deleted, deletes the SCTP link of a type ENDC. Thus, the OM can establish or delete the SCTP link between the LTE ENB and the 5G GNB based on the received link state description information, complete management of the SCTP link of the endec type, and improve the management effectiveness, and by establishing the SCTP link of the endec type, the 5G GNB can transmit the user service using the core network of the LTE ENB, ensure that the service is not interrupted, improve the utilization rate of wireless resources, reduce the service switching delay under the condition of hot-spot high-capacity coverage, meet the user high-capacity requirement, further improve the user experience, and improve the systematicness.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable 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 invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. 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.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. A method for managing a dual-connection ENDC link, comprising:

2. The method as claimed in claim 1, wherein the OM receives link state description information sent by the DD, and further includes, before determining the establishment state of a stream transmission control protocol SCTP link between a long term evolution LTE base station ENB and a 5G base station GNB according to the link state description information:

3. The method according to claim 1 or 2, wherein OM determines that the establishment status of the SCTP link is not established according to the determination result, and further includes, after establishing the SCTP link of which the type is ENDC between the ENB and the GNB when it is determined that the dual-connection ENDC type link needs to be established according to the link status description information:

4. The method according to claim 1 or 2, wherein OM determines that the connection status of the SCTP link is disconnected, and when it is determined that the link of the type of the endec needs to be deleted according to the link status description information, after deleting the SCTP link of the type of the endec between the ENB and the GNB, further comprising:

5. The method according to claim 1 or 2, wherein OM further comprises after establishing an SCTP link of type endec between the ENB and the GNB:

and after the OM sends the link establishment information to the AP, triggering the AP to send neighbor configuration parameter information to a mobility management entity MME, and triggering the MME to judge whether an SCTP link exists between the new 5G GBR and the ENB which has established the SCTP link.

6. A management apparatus of a dual-connection endec link, comprising:

7. The apparatus according to claim 6, wherein the OM receives link state description information sent by the DD, and before determining the establishment state of the SCTP link between the LTE long term evolution base station ENB and the 5G base station GNB according to the link state description information, the determining unit is further configured to:

8. The apparatus according to claim 6 or 7, wherein OM determines that the establishment status of the SCTP link is not established according to the determination result, and when it determines that a dual-connection ENDC type link needs to be established according to the link status description information, after an SCTP link of a type of ENDC is established between the ENB and the GNB, the establishing unit is further configured to:

9. The apparatus according to claim 6 or 7, wherein OM determines that the connection status of the SCTP link is disconnected, and when it is determined that the link of the type of the endec needs to be deleted according to the link status description information, after deleting the SCTP link of the type of the endec between the ENB and the GNB, the deleting unit is further configured to:

10. The apparatus of claim 6 or 7, wherein OM after establishing an SCTP link of type endec between the ENB and the GNB, the establishing unit is further configured to:

and after the link establishment information is sent to the AP, triggering the AP to send neighbor cell configuration parameter information to a Mobility Management Entity (MME), and triggering the MME to judge whether an SCTP link exists between the new 5G GBR and the ENB which has established the SCTP link.

11. A computer-readable storage medium storing a program for implementing a management method of an endec, the program, when executed by a processor, performing the steps of:

12. A communications apparatus comprising one or more processors; and one or more computer-readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform the method of any of claims 1-5.