WO2021022961A1

WO2021022961A1 - Abnormal cell processing method, device, unit, and computer-readable storage medium

Info

Publication number: WO2021022961A1
Application number: PCT/CN2020/100678
Authority: WO
Inventors: 郑涛
Original assignee: 中兴通讯股份有限公司
Priority date: 2019-08-02
Filing date: 2020-07-07
Publication date: 2021-02-11
Also published as: CN112312442A

Abstract

The embodiments of the present application provide an abnormal cell processing method, a device, a unit, and a computer-readable storage medium. The method comprises: adding a cell in an interface message of an F1 interface between a CU and a DU; upon detecting an abnormal secondary cell, the DU recording abnormality information concerning the secondary cell in the cell, and sending the interface message carrying the cell to the CU by means of the F1 interface; the CU receiving the interface message, decoding same and then extracting abnormal secondary cell information contained in the cell, and sending a confirmation message to the DU; and upon receiving the confirmation message, the DU deleting the secondary cell of the UE.

Description

The abnormal cell processing method, device, unit and computer-readable storage medium are different

Cross references to related applications

This application is based on a Chinese patent application with an application number of 201910713489.X and an application date of August 2, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by way of introduction. Application.

Technical field

The embodiments of the present application relate to but are not limited to the field of communications, specifically, to but are not limited to abnormal cell processing methods, devices, units, and computer-readable storage media.

Background technique

With the development of network technology, the requirements for communication equipment are getting higher and higher, which not only requires strong reliability of communication equipment, but also has high requirements on the efficiency of message transmission between communication equipment.

As shown in Figure 9, in the current protocol CU/DU architecture, there are the following definitions: core network 90 (Core); centralized unit 91 (Central Unit, hereinafter referred to as CU); distributed unit 92 (Distributed Unit, hereinafter referred to as DU); User Equipment (User Equipment, hereinafter referred to as UE); Secondary Cell (Secondary Cell, hereinafter referred to as SCell).

Under the current CU/DU separation architecture, the establishment and release of the SCell of the UE are controlled by the CU. Under the existing protocol architecture, when a cell or a certain number of cells needs to be released due to a cell or non-cell abnormality in the DU, the DU will notify the CU, and then the CU will release all UEs in the cell. If it is the SCell of the UE, the SCell of the UE needs to be released. In related technologies, the method of DU notification to CU is cumbersome. The 38.331-encoded container (Container) needs to be used in the message of DU to CU to carry the Scell information that needs to be released. When the 38.331-encoded Container records information, it needs to be on the sending end. Perform multiple encodings. When reading the information recorded by the 38.331-encoded Container, multiple decodings are required at the receiving end, and the relevant protocol does not stipulate that the 38.331-encoded Container needs to be processed, which is not in some application scenarios. Will be parsed, so the transmission efficiency is low, the resource consumption is high, and the versatility is poor. In view of the above-mentioned problems in related technologies, there is currently no efficient and applicable method for processing abnormal cells.

Summary of the invention

The abnormal cell processing method, device, unit, and computer-readable storage medium provided by the embodiments of the application are different.

The embodiment of the application provides an abnormal cell processing method, which includes: when an abnormal secondary cell is detected, sending an interface message to a centralized unit CU, the interface message includes information elements of the abnormal secondary cell; the received CU sends according to the interface message When confirming the message, handle the abnormal secondary cell.

The embodiment of the application provides an abnormal cell processing and control method, including: receiving an interface message sent by a distributed unit DU, the interface message includes information elements of abnormal secondary cell information detected by the DU; A confirmation message for processing the abnormal secondary cell corresponding to the secondary cell information.

An embodiment of the present application further provides an abnormal cell processing device, including: a detection processing module, configured to send an interface message to the centralized unit CU when an abnormal secondary cell is detected, and the interface message includes information elements of the abnormal secondary cell; The abnormal processing module is used to process the abnormal secondary cell when the confirmation message sent by the CU according to the interface message is received.

An embodiment of the present application also provides an abnormal cell processing control device, including: a receiving module, configured to receive an interface message sent by a distributed unit DU, the interface message includes information elements of abnormal secondary cell information detected by the DU; a control module, Used to send a confirmation message to the DU for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information.

The embodiment of the present application also provides a distributed unit DU, including a first processor, a first memory, and a first communication bus; the first communication bus is used to connect the first processor and the first memory; the first processor is used to The first computer program stored in the first memory is executed to implement the steps of the abnormal cell processing method described above.

The embodiment of the present application also provides a centralized unit CU, including a second processor, a second memory, and a second communication bus; the second communication bus is used to connect the second processor and the second memory; the second processor is used to The second computer program stored in the second memory is executed to implement the steps of the abnormal cell processing method.

The embodiment of the present application also provides a computer storage medium, the computer-readable storage medium stores a first computer program, and the first computer program can be executed by the first processor to implement the steps of the abnormal cell processing method described above; or computer-readable The storage medium stores a second computer program, and the second computer program can be executed by the second processor to implement the steps of the abnormal cell processing control method described above.

Other features and corresponding beneficial effects of this application are described in the latter part of the specification, and it should be understood that at least part of the beneficial effects will become apparent from the description in the specification of this application.

Description of the drawings

FIG. 1 is a flowchart of a method for processing abnormal cells in Embodiment 1 of this application;

2 is a flowchart of a method for processing and controlling abnormal cells in Embodiment 2 of the application;

3 is a flowchart of a method for processing and controlling abnormal cells in Embodiment 3 of the application;

4 is a flowchart of a method for processing and controlling abnormal cells in Embodiment 4 of the application;

5 is a schematic structural diagram of an abnormal cell processing apparatus in Embodiment 5 of this application;

FIG. 6 is a schematic structural diagram of an abnormal cell processing and control device in Embodiment 5 of this application;

FIG. 7 is a schematic structural diagram of a distributed unit DU in Embodiment 6 of the application;

FIG. 8 is a schematic structural diagram of a centralized unit CU in Embodiment 6 of this application;

Figure 9 is a schematic diagram of the CU/DU architecture in related technologies;

Figure 10 is an SCell information definition diagram.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present application clearer, the following further describes the embodiments of the present application in detail through specific embodiments in conjunction with the drawings. It should be understood that the specific embodiments described here are only used to explain the application, and are not used to limit the application.

Example one:

In order to solve the cumbersome method of notifying the CU by the DU in the related technology, it is necessary to use the 38.331-encoded Container in the message of the DU to the CU to carry the Scell information that needs to be released. When the 38.331-encoded Container records the information, it is necessary to perform more When reading the information recorded by the 38.331-encoded Container, it needs to be decoded multiple times at the receiving end, and the relevant protocol does not stipulate that the 38.331-encoded Container needs to be processed. It will not be processed in some application scenarios. To resolve the problems of low transmission efficiency, high resource consumption, and poor versatility, this embodiment provides a method for processing abnormal cells, as shown in FIG. 1, including the following steps.

Step S101: When an abnormal secondary cell is detected, an interface message is sent to the centralized unit CU; in this step, it may specifically be when the DU detects that one SCell or multiple SCells of the UE has a cell abnormality or a non-cell abnormality, The centralized unit CU sends interface messages, and non-cell abnormalities include but are not limited to RLF (Radio Link Failure) and other situations. There is an interface between CU and DU. This interface is also called F1 port. It mainly completes signaling and data transmission between CU and DU. This interface is used to transfer interface information. Interface messages include but are not limited to the Ue context modification request (Ue The Context Modification Required) message contains information elements. The information elements can carry SCell information that needs to be released. The definition of SCell information is shown in Figure 10.

Step S102: When receiving the confirmation message sent by the CU according to the interface message, process the abnormal secondary cell.

In this step, specifically, when the DU receives the confirmation message sent by the CU through the interface message, the SCell corresponding to the interface message in the DU is processed. Interface messages include, but are not limited to, the Ue Context Modification Confirm (Ue Context Modification Confirm) message of the F1 port, which carries the SCell information that needs to be deleted; processing includes but is not limited to releasing the SCell.

Embodiment two:

In order to solve the cumbersome method of DU notification to CU in related technologies, it is necessary to use 38.331-encoded Container in the message of DU to CU to carry the Scell information that needs to be released, resulting in low transmission efficiency, high resource consumption and poor versatility. This implementation The example provides an abnormal cell processing and control method, as shown in Figure 2, including the following steps.

S201: Receive the interface message sent by the distributed unit DU; in this step, it may specifically be that the CU receives the interface information sent by the DU. Among them, there is an interface between CU and DU. This interface is also called F1 port. It mainly completes the transmission of signaling and data between CU and DU. This interface is used to transfer interface information. The interface message contains information elements, which can be carried. The SCell information that needs to be released, the definition of the SCell information is shown in Figure 10; after the CU receives the interface message, it decodes the cell in it, and extracts the SCell information contained in the cell that needs to be released.

S202: Send a confirmation message to the DU for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information. In this step, specifically, after receiving the interface message sent by the DU, the CU sends to the DU a confirmation message for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information. The confirmation message includes but is not limited to F1 The Ue Context Modification Confirm message of the port; the abnormal secondary cell information here is the SCell information carried in the cell in step S201.

Example three:

In order to solve the cumbersome method of DU notification to CU in related technologies, it is necessary to use 38.331-encoded Container in the message of DU to CU to carry the Scell information that needs to be released, resulting in low transmission efficiency, high resource consumption and poor versatility. This implementation The example provides an abnormal cell processing and control method, as shown in Figure 3, including the following steps.

S301: The DU detects a cell abnormality; in this step, it may specifically be when the DU detects a cell abnormality in one SCell or multiple SCells of the UE.

S302: DU sends interface message to CU; there is an interface between CU and DU, this interface is also called F1 port, which mainly completes the transmission of signaling and data between CU and DU, and this interface is used to transmit interface information; in this step, the interface The message includes but is not limited to the Ue Context Modification Required message of the F1 port, which contains information elements, which can carry SCell information that needs to be released. The definition of SCell information is shown in Figure 10.

S303: The CU receives the interface message sent by the DU, and sends to the DU a confirmation message for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information. The DU receives the confirmation message sent by the CU according to the interface message and responds to the abnormal The secondary cell performs processing; in this step, the interface message contains information elements, which can carry SCell information that needs to be released; after receiving the interface message, the CU decodes the information elements contained in the information element The SCell information that needs to be released; the confirmation message sent by the CU to the DU includes but is not limited to the Ue Context Modification Confirm message of the F1 port. After receiving the confirmation message sent by the CU, the DU processes the abnormal SCell detected in step S301, and completes The release of resources in the DU includes but is not limited to deleting the Scell of the UE.

S304: The CU obtains each UE in the SCell that needs to be released, and sends processing information to each determined UE; in this step, the CU obtains each UE in the SCell that needs to be released according to the abnormal SCell information in the interface message sent by the DU. The UE then sends processing information to the determined UEs. The messages include but are not limited to Rrc Reconfiguration (Rrc Reconfiguration) messages, which carry SCell information that needs to be processed, and processing includes but is not limited to deleting SCells.

S305: After receiving the message of the CU, the UE processes the SCell, and sends a completion message to the CU. In this step, the UE processes the corresponding SCell according to the received CU message. The processing method includes but is not limited to deleting the SCell; after the processing is completed, it sends a processing complete message to the CU, which includes but is not limited to Rrc Reconfiguration complete (Rrc Reconfiguration Complete) message.

This embodiment provides an abnormal cell processing and control method. By adding information elements to the interface message of the F1 interface between the CU and the DU, when the DU detects an abnormal secondary cell, the abnormal information of the secondary cell is recorded in the information element. And send the interface message carrying the cell to the CU through the F1 interface. After receiving the interface information, the CU extracts the abnormal secondary cell information contained in the cell through decoding, sends an acknowledgement message to the DU, and sends the processing to the UE The UE processes the corresponding abnormal secondary cell according to the message, which solves the cumbersome method of notifying the CU by the DU in the related technology. It is necessary to use the 38.331-coded Container in the message from the DU to the CU to carry the Scell information that needs to be released. When the 38.331-encoded Container records information, it needs to be encoded multiple times at the sending end. When reading the information recorded by the 38.331-encoded Container, it needs to be decoded multiple times at the receiving end, and there is no requirement to encode 38.331 in the relevant protocol. Container processing, it will not be resolved in some application scenarios, so the transmission efficiency is low, high resource consumption and poor versatility, to achieve the DU due to some abnormal situation in the UE's SCell must be deleted, DU The CU can be notified quickly and efficiently, triggering the CU to release the SCell of the UE as soon as possible on the base station side and the UE side, without affecting the services and behaviors of other UEs in the cell where the UE’s SC ell in the DU resides, or the UE itself Business effect.

Embodiment four:

S401: The DU detects a non-cell abnormality; in this step, it may specifically be when the DU detects a cell abnormality in one SCell or multiple SCells of the UE. , Non-cell anomalies include but are not limited to RLF (Radio Link Failure).

S402: DU sends interface message to CU; there is an interface between CU and DU, this interface is also called F1 port, which mainly completes the transmission of signaling and data between CU and DU, and this interface is used to transfer interface information; in this step, interface The message includes but is not limited to the Ue Context Modification Required message of the F1 port, which contains information elements, which can carry SCell information that needs to be released. The definition of SCell information is shown in Figure 10.

S403: The CU receives the interface message sent by the DU, and sends a confirmation message to the DU for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information. The DU receives the confirmation message sent by the CU according to the interface message and responds to the abnormal The secondary cell performs processing; in this step, the interface message contains information elements, which can carry SCell information that needs to be released; after receiving the interface message, the CU decodes the information elements contained in the information element The SCell information that needs to be released; the confirmation message sent by the CU to the DU includes but is not limited to the Ue Context Modification Confirm message of the F1 port. After receiving the confirmation message sent by the CU, the DU processes the abnormal SCell detected in step S401, and completes The release of resources in the DU includes but is not limited to deleting the Scell of the UE.

S404: The CU obtains each UE in the SCell that needs to be released, and sends processing information to each determined UE; in this step, the CU obtains each of the SCells that need to be released according to the abnormal SCell information in the interface message sent by the DU. The UE then sends processing information to the determined UEs. The message includes but is not limited to the Rrc Reconfiguration message. The message carries the SCell information that needs to be processed. The processing includes but is not limited to deleting the SCell.

S405: After receiving the message of the CU, the UE processes the SCell, and sends a completion message to the CU. In this step, the UE processes the corresponding SCell according to the received CU message. The processing method includes but is not limited to deleting the SCell; after the processing is completed, it sends a processing complete message to the CU, which includes but is not limited to Rrc Reconfiguration Complete message.

Embodiment five:

In order to solve the cumbersome method of DU notification to CU in related technologies, it is necessary to use 38.331-encoded Container in the message of DU to CU to carry the Scell information that needs to be released, resulting in low transmission efficiency, high resource consumption and poor versatility. This implementation The example provides an abnormal cell processing device, as shown in FIG. 5, including a detection processing module 51 and an abnormal processing module 52.

The detection processing module 51 is configured to send an interface message to the centralized unit CU when an abnormal secondary cell is detected, and the interface message includes information elements of the abnormal secondary cell. When the abnormal cell processing device 50 detects cell abnormality or non-cell abnormality in one SCell or multiple SCells of the UE, it sends an interface message to the centralized unit CU. The non-cell abnormality includes but is not limited to RLF (Radio Link Failure) and other situations. There is an interface between the CU and the abnormal cell processing device 50, which mainly completes the signaling and data transmission between the CU and the abnormal cell processing device 50. The interface is used to transfer interface information. Interface messages include but are not limited to the Ue Context Modification Required message of the F1 port , Which contains information elements, which can carry SCell information that needs to be released. The definition of SCell information is shown in Figure 10.

The abnormal processing module 52 is configured to process the abnormal secondary cell when receiving the confirmation message sent by the CU according to the interface message. When the abnormal cell processing device 50 receives the confirmation message sent by the CU through the interface message, it processes the SCell corresponding to the interface message in the abnormal cell processing device 50. The interface message includes but is not limited to the Ue Context Modification Confirm message of the F1 port, which carries the SCell information that needs to be deleted; the processing includes but is not limited to releasing the SCell.

This embodiment also provides an abnormal cell processing and control device, as shown in FIG. 6, including a receiving module 61 and a control module 62.

The receiving module 61 is configured to receive an interface message sent by the distributed unit DU, and the interface message includes information elements of abnormal secondary cell information detected by the DU. The abnormal cell processing control device 60 receives the interface information sent by the DU. Among them, there is an interface between the abnormal cell processing control device 60 and the DU, which mainly completes the signaling and data transmission between the abnormal cell processing control device 60 and the DU. The interface is used to transfer interface information. The interface message contains information elements. It can carry SCell information that needs to be released; after receiving the interface message, the abnormal cell processing control device 60 decodes the cell in it, and extracts the SCell information that needs to be released contained in the cell. The definition of SCell information is shown in Figure 10. .

The control module 62 is configured to send a confirmation message to the DU for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information. After receiving the interface message sent by the DU, the abnormal cell processing control device 60 sends to the DU a confirmation message for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information. The confirmation message includes but is not limited to the Ue of the F1 port. Context Modification Confirm message; the abnormal secondary cell information here is the SCell information carried in the cell.

Embodiment 6:

In order to solve the cumbersome method of DU notification to CU in related technologies, it is necessary to use 38.331-encoded Container in the message of DU to CU to carry the Scell information that needs to be released, resulting in low transmission efficiency, high resource consumption and poor versatility. This implementation The example provides a distributed unit DU, as shown in FIG. 7, which includes a first processor 71, a first memory 72 and a first communication bus 73, wherein: the first communication bus is used to connect the first processor and the second A memory connection; the first processor is configured to execute the first computer program stored in the first memory to implement at least one of the abnormal cell processing method in the first embodiment and/or the abnormal cell processing control method in the third embodiment step.

This embodiment also provides a centralized unit CU, as shown in FIG. 8, which includes a second processor 81, a second memory 82, and a second communication bus 83, wherein: the second communication bus is used for the second processing The second processor is connected to the second memory; the second processor is used to execute the second computer program stored in the second memory to implement the abnormal cell processing control method in the second embodiment and/or the abnormal cell processing control method in the third embodiment At least one step in.

This embodiment also provides a computer-readable storage medium, which is included in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules, or other data). Volatile or non-volatile, removable or non-removable media. Computer readable storage media include but are not limited to RAM (Random Access Memory), ROM (Read-Only Memory, read-only memory), EEPROM (Electrically Erasable Programmable read only memory, charged Erasable Programmable Read-Only Memory) ), flash memory or other storage technology, CD-ROM (Compact Disc Read-Only Memory), digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, Or any other medium that can be used to store desired information and can be accessed by a computer.

The computer-readable storage medium in this embodiment can be used to store a first computer program, and the stored first computer program can be executed by a first processor to implement the abnormal cell processing method and/or embodiment in the first embodiment above At least one step in the abnormal cell treatment control method in the third; or, the computer-readable storage medium in this embodiment can be used to store a second computer program, and the stored second computer program can be executed by the second processor to At least one step in the abnormal cell processing control method in the second embodiment and/or the abnormal cell processing control method in the third embodiment is implemented.

This embodiment also provides a computer program (or computer software), which can be distributed on a computer-readable medium and executed by a computable device to implement the abnormal cell processing methods and methods shown in the above embodiments. /Or at least one step in the abnormal cell processing control method; and in some cases, at least one step shown or described may be performed in a different order than described in the foregoing embodiment.

This embodiment also provides a computer program product, including a computer readable device, and any computer program as shown above is stored on the computer readable device. The computer-readable device in this embodiment may include the computer-readable storage medium as shown above.

It can be seen that those skilled in the art should understand that all or some of the steps, functional modules/units in the system and the device in the method disclosed above can be implemented as software (which can be implemented by computer program code executable by a computing device ), firmware, hardware and their appropriate combination. In hardware embodiments, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may consist of several physical components. The components are executed cooperatively. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .

In addition, as is well known to those of ordinary skill in the art, communication media usually contain computer-readable instructions, data structures, computer program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium. Therefore, this application is not limited to any specific hardware and software combination.

The above content is a further detailed description of the embodiments of the application in combination with specific embodiments, and it cannot be considered that the specific implementation of the application is limited to these descriptions. For those of ordinary skill in the technical field to which this application belongs, a number of simple deductions or substitutions can be made without departing from the concept of this application, which should be regarded as falling within the protection scope of this application.

Claims

An abnormal cell processing method, including:

When an abnormal secondary cell is detected, an interface message is sent to the centralized unit CU, and the interface message includes information elements of the abnormal secondary cell;

When receiving the confirmation message sent by the CU according to the interface message, the abnormal secondary cell is processed.
The abnormal cell processing method according to claim 1, wherein the processing of the abnormal secondary cell comprises: releasing the abnormal secondary cell.
The abnormal cell processing method according to claim 1 or 2, wherein the interface message is an interface message of the F1 port.
An abnormal cell processing and control method, including:

Receive the interface message sent by the distributed unit DU, the interface message includes information elements of abnormal secondary cell information detected by the DU;

Send a confirmation message to the DU for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information.
The abnormal cell handling control method of claim 4, further comprising:

Send an abnormal cell notification message to the user equipment UE in the abnormal secondary cell corresponding to the abnormal secondary cell information, and the abnormal cell notification message includes the abnormal secondary cell information.
An abnormal cell processing device, which includes:

The detection processing module is used to send an interface message to the centralized unit CU when an abnormal secondary cell is detected, and the interface message includes information elements of the abnormal secondary cell;

The abnormal processing module is used to process the abnormal secondary cell when the confirmation message sent by the CU according to the interface message is received.
An abnormal cell processing control device, which includes:

The receiving module is used to receive the interface message sent by the distributed unit DU, and the interface message includes information elements of abnormal secondary cell information detected by the DU;

The control module is configured to send a confirmation message to the DU for instructing the DU to process the abnormal secondary cell corresponding to the abnormal secondary cell information.
A distributed unit DU, which includes a first processor, a first memory, and a first communication bus;

The first communication bus is used to connect the first processor and the first memory;

The first processor is configured to execute the first computer program stored in the first memory to implement the steps of the abnormal cell processing method according to any one of claims 1-3.
A centralized unit CU, which includes a second processor, a second memory, and a second communication bus;

The second communication bus is used to connect the second processor and the second memory;

The second processor is configured to execute a second computer program stored in the second memory to implement the steps of the abnormal cell processing method according to any one of claims 4-5.
A computer-readable storage medium, wherein the computer-readable storage medium stores a first computer program, and the first computer program can be executed by a first processor to implement the abnormal cell processing method according to any one of claims 1-3 A step of;

or,

The computer-readable storage medium stores a second computer program, and the second computer program can be executed by the second processor to implement the steps of the abnormal cell treatment control method according to any one of claims 4-5.