WO2021098369A1

WO2021098369A1 - System information sending method, network device, base station, and storage medium

Info

Publication number: WO2021098369A1
Application number: PCT/CN2020/116826
Authority: WO
Inventors: 黎慰; 胡敏
Original assignee: 中兴通讯股份有限公司
Priority date: 2019-11-22
Filing date: 2020-09-22
Publication date: 2021-05-27
Also published as: CN112839339B; CN112839339A

Abstract

Provided in embodiments of the present application are a system information (SI) sending method, a network device, and a storage medium. A CU does not need to issue Other SI to each logic cell, instead, the CU merely selects one logic cell for one physical cell as a representative target logic cell, and then sends Other SI for the target logic cell to a DU. Thus, the number of times that the CU issues Other SI can be greatly reduced, thereby reducing the overhead of an F1 interface between the CU and the DU.

Description

System information sending method, network equipment, base station and storage medium

Cross-references to related applications

This application claims the priority of the Chinese patent application CN201911158658.4 entitled "A method for sending system information, network equipment, base station and storage medium" filed on November 22, 2019, the entire content of which is incorporated herein by reference .

Technical field

This application relates to the field of communications, and in particular to a method for sending system information, network equipment, base stations, and storage media.

Background technique

With the development of mobile communication technology, 5G (5th Generation) mobile communication technology has entered people's field of vision. In terms of 5G RAN (Radio Access Network) architecture, 3GPP (3rd Generation Partnership Project) has determined the CU/DU (Central Unit/Distributed Unit) architecture scheme : CU and DU complete signaling and data transmission through the F1 interface. Among them, CU mainly deals with non-real-time wireless high-level protocol stack functions, while DU mainly deals with physical layer functions and real-time requirements.

In 5G, a physical cell can be mapped to multiple logical cells through network sharing, and these logical cells share the resources of the same physical cell. For Other SI (other system information), that is, system information other than SIB (System Information Block), when the DU is sent to the UE side, it can only be sent by physical cell, but the CU side is sending it to the DU. The configuration and delivery of reselection related parameters are performed in units of physical cells. This causes the CU to send Other SI for the same physical cell to the DU multiple times, which causes unnecessary overhead on the F1 interface.

Summary of the invention

The system information sending method, network equipment, base station, and storage medium provided by the embodiments of the present application.

In order to solve the above technical problem, an embodiment of the present application provides a system information sending method, including: configuring a mapping relationship between a physical cell and a logical cell and the priority between each logical cell corresponding to the physical cell; and combining the mapping relationship with the priority Send to CU via F1 interface message; receive Other SI issued by CU for the target logical cell, the target logical cell is a logical cell determined by CU from the logical cells in the current state according to the priority, Other SI is other than SIB1 System information; Issue Other SI to the physical cell.

An embodiment of the application also provides a system information sending method, including: receiving an F1 interface message sent by a DU; obtaining a mapping relationship between a physical cell and a logical cell from the F1 interface message and a priority between logical cells corresponding to the physical cell ; According to the priority, a logical cell in a normal state is determined from each logical cell corresponding to the physical cell as the target logical cell. The Other SI of the target logical cell is used to characterize the Other SI of the physical cell, and the Other SI is system information other than SIB1; Generate the Other SI according to the reselection parameters configured for the target logical cell by the network management system and send the Other SI to the DU.

An embodiment of the present application also provides a system information sending method, including: DU configures the mapping relationship between physical cells and logical cells and the priority between the logical cells corresponding to the physical cells; DU passes the mapping relationship and priority through the F1 interface The message is sent to the CU; the CU obtains the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell from the F1 interface message; the CU determines a state from the logical cells corresponding to the physical cell according to the priority The normal logical cell is used as the target logical cell, the Other SI of the target logical cell is used to characterize the Other SI of the physical cell, and Other SI is the system information other than SIB1; the CU generates the Other SI according to the reselection parameters configured for the target logical cell by the network management system And send Other SI to DU; DU issues Other SI to the physical cell.

The embodiment of the present application also provides a network device. The network device includes a processor, a memory, and a communication bus; the communication bus is used to realize the connection and communication between the processor and the memory; the processor is used to send the first system information stored in the memory. The program is used to implement the steps of the foregoing first system information sending method; or the processor is used to execute the second system information sending program stored in the memory to implement the steps of the foregoing second system information sending method.

An embodiment of the present application also provides a base station, including a CU and at least one DU, and the DU is in communication connection with the CU; DU is a network device for the above-mentioned processor to execute a first system information sending program; CU is for the above-mentioned processor to execute a second system information sending The program's network equipment.

An embodiment of the present application also provides a storage medium that stores any one of a first system information sending program and a second system information sending program, and the first system information sending program can be executed by one or more processors, In order to realize the steps of the foregoing first method for sending system information; the second system information sending program may be executed by one or more processors to implement the steps of the foregoing second method for sending system information.

Other features of this application and corresponding beneficial effects 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 schematic diagram of a base station shown in Embodiment 1 of this application;

2 is an interactive flowchart of the system information sending method provided in Embodiment 1 of the application;

FIG. 3 is an interaction flowchart of the system information sending method provided in the second embodiment of this application;

FIG. 4 is a flow chart of an interaction between the CU and the DU provided in Example 1 of the third embodiment of the application;

Figure 5 is a flow chart of an interaction between CU and DU provided in Example 2 of the third embodiment of the application;

FIG. 6 is a schematic diagram of a hardware structure of a network device provided in Embodiment 4 of this application;

FIG. 7 is a schematic structural diagram of a base station provided in Embodiment 4 of this application.

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 implementations in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the application, and not used to limit the application.

Example one

The protocol SIB (System Information Block, System Information Block) supports multiple PLMN (Public Land Mobile Network, Public Land Mobile Network) groups, which makes the network sharing method very flexible and can meet the network sharing needs of different operators.

In order to solve the problem of limited flexibility of the Other SI configuration of each logical cell when there are at least two logical cells for a physical cell in the related art and the high FI interface overhead caused when the CU issues the Other SI to the DU, this embodiment provides a A method for sending system information, which is mainly applied to the base station shown in Fig. 1:

The base station 10 in FIG. 1 includes a CU 11 and a DU 12. The DU 12 and the CU 11 can be deployed separately, and the CU 11 and the DU 12 realize interaction (including signaling interaction and data transmission) through an F1 interface. It is understandable that in FIG. 1, only one DU 12 is shown in the base station 10, but in some other examples, one base station 10 may include two or more DUs at the same time.

Please refer to a flowchart of the system information sending method shown in FIG. 2 below.

S202: The DU configures the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell.

There is no doubt that the mapping relationship configured by the DU for a physical cell can reflect each logical cell corresponding to the physical cell. The priority of each logical cell can reflect the possible sequence in which each logical cell becomes the selected target logical cell during the selection process of the target logical cell. Among them, the higher the priority of a logical cell, the higher the priority of a logical cell, the The logical cell is also more likely to become the target logical cell.

In some examples of this embodiment, the DU can be randomly configured when configuring the priority of each logical cell corresponding to the physical cell, as long as the priority of each logical cell is different from each other, because only the same physical cell is guaranteed The priority of each logical cell is different from each other to ensure that the CU can uniquely select a logical cell as the target logical cell every time the CU selects the target logical cell.

In some other examples of this embodiment, when the DU configures the priority for each logical cell of the same physical cell, it can be configured according to the operator’s policy. For example, there are logical cells a, b, and c at the same time in a certain physical cell. , The operator instructs the UE to access the three logical cells with priority b, c, and a from high to low, which means that the UE should preferentially access logical cell b, followed by logical cell c, and then a Logical cell. In this case, when the DU determines the priority for each logical cell in the physical cell, it can also follow the access priority order. Based on this, the priority configured for logical cells a, b, and c is 1 in order. , 3, 2 (the higher the value here means the higher the priority).

S204: The DU sends the mapping relationship and priority to the CU through the F1 interface message.

After the DU configures the mapping relationship and priority, it can send the mapping relationship and priority to the CU through an F1 interface message. In some examples of this embodiment, the SIB code stream carrying the mapping relationship and priority includes at least one of an F1 setup request (F1 SETUP REQUEST) message and a gNB-DU configuration update (GNB-DU CONFIGURATION UPDATE) message. In some examples of this embodiment, the DU can send the mapping relationship and priority to the CU through the F1 establishment request message. In other examples of this embodiment, the DU can also send the mapping relationship to the CU through the gNB-DU configuration update message. And priority. It is understandable that the mapping relationship and priority may not be sent to the CU together. For example, the DU may use the F1 establishment request message to send the mapping relationship to the CU, and the gNB-DU configuration update message to send the priority to the CU.

In some examples of this embodiment, the DU can indicate the priority to the CU in any of the following two ways in the F1 interface message.

Method 1: DU carries a special priority indication field in the F1 interface message, and uses the priority indication field to indicate the priority corresponding to each logical cell. For example, in an example, the priority indication field corresponding to logical cell a If the value is "250", and the priority indicator field corresponding to logical cell b is "270", it means that the priorities of logical cells a and b are 250 and 270, respectively, and the priority of logical cell b is higher than that of logical cell a.

Method 2: In this method, the F1 interface message does not need to carry a special field indicating the priority. However, when the DU fills in the PLMN list in the SIB1 code stream, it can be filled in according to the preset principle, and this principle is Known on the CU side. For example, DU and CU agree that the order of filling in each logical cell in the PLMN is the descending order of priority of each logical cell. When filling in the PLMN list, DU can fill in the order of logical cell priority from high to low. After the CU receives the SIB1 code stream, it can know the priority of each logical cell according to the order of filling in the PLMN list. In an example of this embodiment, the PLMN corresponding to logical cell a is PLMN1, and the PLMN corresponding to logical cell b is PLMN2, and the priority of logical cell b is higher than that of logical chip a, then the PLMN in the PLMN list The filling order can be {PLMN2,PLMN1}.

There is no doubt that when the priority order of the logical cells is indicated to the CU in the above manner, the logical cells can also be filled in in sequence according to the DU or the logical cell priority from low to high. However, at this time In the agreement between DU and CU, the order of filling in the logical cells in the PLMN is the ascending order of priority of each logical cell. Take the PLMN corresponding to logical cell c as PLMN3, and the PLMN corresponding to logical cell d as PLMN4, and the priority of logical cell c is higher than that of logical chip d as an example. According to this filling principle, the order of filling in the PLMN list It should be {PLMN4,PLMN3}.

S206: The CU obtains the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell from the F1 interface message.

After receiving the F1 interface message transmitted by the DU through the F1 interface, the CU can obtain the mapping relationship between the physical cell and the logical cell according to the F1 interface message, and can also obtain the logical cells corresponding to a physical cell according to the F1 interface message Priority. Since the DU has two ways to indicate the priority of each logical cell to the CU, the CU also has two ways to obtain the priority from the F1 interface message.

Manner 1: The CU determines the priority of each logical cell according to the priority indication field carried in the F1 interface message. This method is very simple. If the priority indicator field corresponding to logical cell a is "30" and the priority indicator field corresponding to logical cell b is "70", it means that the priorities of logical cells a and b are 30 and 70, respectively. , The priority of logical cell b is higher than the priority of logical cell a.

Method 2: In this method, the CU and DU have agreed upon the filling rules of the PLMN list in the F1 interface message in advance. The CU can determine the priority of each logical cell based on the preset filling rules and the actual filling order of the received PLMN list . Assuming that the pre-agreed filling rule of CU and DU is the filling rule of PLMN list in descending order, and the PLMN list in the received F1 interface message is {PLMN2,PLMN1}, it means that the priority of logical cell b corresponding to PLMN2 is higher than that of PLMN1 The priority of logical cell a. On the contrary, if the pre-agreed filling rule of CU and DU is the filling rule of PLMN list in ascending order, and the PLMN list in the received F1 interface message is also {PLMN2,PLMN1}, it means that the priority of logical cell a is higher than that of logical cell b. level.

S208: The CU determines a logical cell in a normal state from each logical cell corresponding to the physical cell as the target logical cell according to the priority.

After the CU determines the mapping relationship from the SIB1 code stream, it can determine which logical cells correspond to the same physical cell, so that the CU knows which logical cells should be used when selecting the target logical cell for a certain physical cell select.

After determining the priority, the CU can determine which logical cell to select as the target logical cell. In some examples of this embodiment, the CU may select the logical cell with the highest priority as the target logical cell. Of course, in some other examples of this embodiment, the CU does not necessarily have to select the logical cell with the highest priority as the target logical cell. Instead, it selects the logical cell with the second highest priority, or from the logical cell with the higher priority. Randomly select a logical cell among n% logical cells as the target logical cell, etc.

It should be understood that the target logical cell selected by the CU should be in a normal state, not in a state blocked. Therefore, in some examples of this embodiment, the CU selects the target logical cell only when the current state is normal. The logical cell is selected according to the priority.

S210: The CU generates the Other SI according to the reselection parameters configured for the target logical cell by the network management system and sends the Other SI to the DU.

In the network management system, each logical cell is usually configured with corresponding reselection parameters, and the reselection parameters corresponding to each logical cell can be configured by the operator corresponding to the logical cell. Therefore, after the CU determines a target logical cell, the CU can obtain the reselection parameters configured for the target logical cell in the network management system, and generate the Other SI for the target logical cell based on the reselection parameters, and then the Other SI Send to DU. In some examples of this embodiment, the CU may send the Other SI of the target logical cell to the DU through a gNB-CU configuration update (GNB-CU CONFIGURATION UPDATE) message. Of course, in some other examples of this embodiment, the CU may also carry the Other SI of the target logical cell to the DU through other messages.

It is understandable that when the CU issues Other SI to the DU, it will only issue it for the current target logical cell, and there is only one target logical cell. Therefore, the Other SI that the DU gets each time is unique, regardless of the CU. Regarding the configuration of the reselection parameters of each logical cell on the side, it is impossible for the DU to receive two or more Other SIs with different reselection parameters at the same time, that is, regardless of the reselection parameter configuration of each logical cell on the CU side Regardless of the situation, the DU will not encounter the different conflicts of the received Other SI. Therefore, the configuration of the reselection parameters of each logical cell on the CU side is more flexible and unrestricted. Each operator can independently configure the corresponding logical cell according to its own needs. The re-selection parameters without having to care about the configuration results of other operators.

S212: The DU delivers the received Other SI to the physical cell.

After receiving the Other SI issued by the CU for the target logical cell, the DU can issue the Other SI to the UE side. In this embodiment, because the DU will only receive the Other SI of one logical cell at the same time, the DU does not need to select before issuing the Other SI, and can directly perform the issuing operation after receiving the Other SI sent by the CU .

In some examples of this embodiment, there may be such a situation: after the CU selects a target logical cell and issues Other SI according to the reselection parameter item DU of the target logical cell, the state of the target logical cell is switched to In the blocked state, in the subsequent process, the CU can no longer indicate the Other SI of the physical cell through the Other SI of the logical cell. Therefore, the CU needs to select a new target logical cell and replace the original target with the new target logical cell. The logical cell characterizes the Other SI of the physical cell to the DU side. In an embodiment, the CU may select a logical cell with the highest priority as the target logical cell from the remaining logical cells in a normal state according to the previously acquired priority.

In related technologies, when the CU instructs the DU to block a certain logical cell, it is also done in units of logical cells. Therefore, in order to avoid conflicts between messages received by the DU, once the CU needs to instruct to block a certain logical cell, it needs to be guaranteed All indication messages sent to the DU indicate logical cell blocking, that is, each logical cell corresponding to the same physical cell will be blocked, and blocking of some logical cells cannot be achieved, which will seriously affect the user's service experience. However, in this embodiment, because the parameter configuration of each logical cell is independent of each other, blocking of some logical cells can be realized, making the cell blocking process more targeted.

In the system information sending method provided in this embodiment, for a physical cell, the CU only needs to issue Other SI once, and does not need to issue Other SI for each logical cell of the physical cell. Therefore, F1 is greatly reduced. The overhead of the interface.

At the same time, because each operator can independently configure the reselection parameter of the corresponding logical cell, the flexibility of parameter configuration between logical cells can be improved, thereby enhancing the autonomy of the operator and improving the management experience of the operator.

Example two

This embodiment will further introduce the system information sending method on the basis of the foregoing embodiment and an example. Please refer to the flowchart shown in Fig. 3:

S302: After configuring the priority of each logical cell mapped by the same physical cell, the DU sorts each logical cell according to the priority, and fills in the PLMN list in the SIB1 code stream according to the sorting result.

In this embodiment, the DU uses the second method in the previous embodiment to indicate to the CU the priority of each logical cell corresponding to the same physical cell, but in some other examples in this embodiment, the DU may also use the first method to indicate to the CU For the priority, please refer to the introduction of the foregoing embodiment for a specific implementation manner, which will not be repeated here.

S304: The DU sends an F1 establishment request message to the CU through the F1 interface.

In this embodiment, the F1 establishment request message carries the mapping relationship between the physical cell and the logical cell and the priority of each logical cell. In some other examples of this embodiment, the DU can also send a gNB-DU configuration update message to the CU through the F1 interface, and use the gNB-DU configuration update message to notify the CU of the mapping relationship between the physical cell and the logical cell and the priority of each logical cell. .

S306: The CU obtains the mapping relationship between the physical cell and the logical cell and the priority order of each logical cell corresponding to the same physical cell according to the received SIB1 code stream.

S308: The CU determines the cell status of each logical cell and the reselection parameters independently configured for each logical cell.

In this embodiment, the state of the logical cell is divided into two types: a normal state and a blocked state. Reselection parameters refer to parameters related to reselection, such as measurement objects, switching thresholds, and reselection duration. It is understandable that reselection is divided into same frequency reselection, different frequency reselection, and different system reselection.

S310: According to the acquired priority, the CU screens out a logical cell with a normal state and the highest priority as the target logical cell.

S312: The CU fills in Other SI according to the reselection parameters corresponding to the target logical cell.

S314: The CU delivers the filled Other SI to the DU through the F1 interface message gNB-CU configuration update message.

S316: The DU delivers the received Other SI to the UE side.

In the system information sending method provided in this embodiment, the configuration parameters between logical cells corresponding to the same physical cell do not need to be restricted, which makes the parameter configuration strategy of each operator more flexible. In addition, when the CU blocks a certain logical cell, the CU can easily select the logical cell with the next highest priority and the normal state as the new target logical cell to update the Other SI information, and remove the cell information and the PLMN with the incorrect status from the logical cell. Remove from SIB1 to avoid unnecessary other SI packet and F1 port message transmission overhead of CU. Moreover, through the application of logical cell priority, cell reselection and blocking in the network sharing scenario can be realized on the basis of a small F1 interface overhead.

Example three

In order to make the advantages and details of the system information sending method provided by the embodiments of this application clearer to those skilled in the art, this embodiment will further illustrate the system information sending solution with examples:

Example 1

Assuming that there is a physical cell CellA under the DU physical entity, logical cells Cell1 (configure PlmnGroup1, including Plmn1 operator 1) and Cell2 (configure PlmnGroup2, including Plmn2 operator 2) are configured, and Cell1 and Cell2 share the physical resources of the physical cell CellA. The priority of the logical cell Cell1 configured on the DU side is 240, and the priority of the logical cell Cell2 is 250.

At the same time, it is assumed that the reselection parameters configured for the logical cells Cell1 and Cell2 in the CU physical entity are P1 and P2, respectively.

Below, please refer to FIG. 4 to show a flow chart of an interaction between the DU and the CU.

S402: The DU fills in the PLMN-IdentityInfoList (PLMN identification information list) according to the preset filling rule and the priority configured for each logical cell.

In an example of this embodiment, the DU fills in the PLMN-IdentityInfoList in the SIB1 code stream according to the filling rule in descending order, fills in the Plmn2 supported by the logical cell Cell2 in the front, and fills in the Plmn1 supported by the logical cell Cell1 in the back, namely {Plmn2 ,Plmn1}.

S404: The DU notifies the SIB1 code stream carrying the priority of the logical cell to the CU through an F1 interface message.

S406: The CU parses out the SIB1 code stream, and obtains the mapping relationship between the physical cell and the logical cell, and the priority of each logical cell mapped from the same physical cell.

S408: The CU obtains the reselection parameters P1 and P2 corresponding to the logical cells Cell1 and Cell2 from the background.

S410: The CU selects the logical cell Cell2 with the highest priority as the target logical cell according to the priority of the logical cell.

S412: The CU fills in Other SI according to the reselection parameter P2 of the target logical cell, and sends it to the DU through the gNB-CU configuration update message.

Example 2

Assuming that there is a physical cell CellB under the DU physical entity, configure logical cells Cell1 (configure PlmnGroup1, including Plmn1 operator 1), Cell2 (configure PlmnGroup2, including Plmn2 operator 2), and Cell3 (configure PlmnGroup3, including Plmn3 operator 3), three Each logical cell shares the physical resources of the physical cell CellB; the priority of the logical cell Cell1 is 240, the priority of the logical cell Cell2 is 250, and the priority of the logical cell Cell3 is 245.

At the same time, it is assumed that the reselection parameters configured for the logical cells Cell1, Cell2, and Cell3 in the CU physical entity are respectively P1, P2, and P3, and the state of the logical cell Cell2 configured on the CU side is blocked, and the state of the logical cell Cell1 and the logical cell Cell3 are normal .

In the following, please refer to FIG. 5 to show a flow chart of interaction between the DU and the CU.

S502: The DU fills in the PLMN-IdentityInfoList according to the preset filling rule and the priority configured for each logical cell.

Since the status of the logical cell Cell2 is blocked, when the DU compiles the PLMN-IdentityInfoList in the SIB1 code stream, after filtering out the blocked logical cell Cell2, sort it according to the logical cell priority, and fill in the Plmn3 supported by the logical cell Cell3 first. Fill in the Plmn1 supported by the logical cell Cell1, namely {Plmn3, Plmn1}.

S504: The DU notifies the SIB1 code stream carrying the priority of the logical cell to the CU through an F1 interface message.

S506: The CU parses out the SIB1 code stream, and obtains the mapping relationship between the physical cell and the logical cell, and the priority of each logical cell mapped from the same physical cell.

S508: The CU obtains the reselection parameters P1, P2, and P3 corresponding to the logical cells Cell1, Cell2, and Cell3 from the background.

S510: The CU filters out the blocked logical cell Cell2, and selects the logical cell Cell3 with the highest priority as the target logical cell according to the priority of the logical cell.

S512: The CU fills in Other SI according to the reselection parameter P3 of the target logical cell, and sends it to the DU through the gNB-CU configuration update message.

Example four

This embodiment provides a storage medium that can store one or more computer programs that can be read, compiled, and executed by one or more processors. In this embodiment, the computer-readable storage medium One of the first system information sending program and the second system information sending program may be stored, wherein the first system information sending program can be executed by one or more processors to implement any one of the system information sending methods introduced in the foregoing embodiments In the process on the DU side, the second system information sending program can be executed by one or more processors to implement any one of the system information sending methods introduced in the foregoing embodiments of the CU side process.

This embodiment also provides a network device. Please refer to FIG. 6. The network device 60 includes a processor 61, a memory 62, and a communication bus 63 for connecting the processor 61 and the memory 62. The memory 62 may be the aforementioned storage device. The storage medium of the first system information sending program. The processor 61 can read the first system information sending program, compile and execute the process for implementing the DU side of the system information sending method introduced in the foregoing embodiment. At this time, the network device 60 It is the network equipment on the DU side.

The processor 61 configures the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell, and sends the mapping relationship and the priority to the CU through an F1 interface message. Subsequently, the processor 61 receives other system information Other SI issued by the centralized unit for the target logical cell, and issues Other SI to the physical cell.

The target logical cell is one determined by the CU from the logical cells in the current state according to the priority, and Other SI is system information other than the system information block SIB1; in an example of this embodiment, the processor 61 When the mapping relationship and priority are sent to the CU through the F1 interface message, the mapping relationship and priority can be sent to the CU through the F1 establishment request message; and/or the processor 61 sends the mapping relationship and priority through the gNB-DU configuration update message Send to CU.

In an example of this embodiment, the F1 interface message includes a priority indication field, and the priority indication field is used to indicate the priority of the logical cell.

In another example of this embodiment, the public land mobile network PLMN list in the F1 interface message is filled in each logical cell corresponding to the physical cell according to the filling rule of ascending or descending priority.

In some other examples of this embodiment, the memory 62 may be the aforementioned storage medium storing the second system information sending program, and the processor 61 may read the second system information sending program, compile and execute The system information sending method introduced is the process on the CU side. At this time, the network device 60 is the network device on the CU side.

The processor 61 receives the F1 interface message sent by the DU, and then obtains the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell from the F1 interface message. Subsequently, the processor 61 determines a logical cell in a normal state as the target logical cell from the logical cells corresponding to the physical cell according to the priority, and generates Other SI according to the reselection parameters configured for the target logical cell by the network management system and sends the Other SI to DU. The Other SI of the target logical cell is used to characterize the Other SI of the physical cell, and the Other SI is the system information outside the system information block SIB1.

When the processor 61 determines a logical cell in a normal state as the target logical cell from the logical cells corresponding to the physical cell according to the priority, it may select the logical cell with the highest priority from the logical cells in the normal state corresponding to the physical cell as the target logical cell. Target logical cell.

In an example of this embodiment, when obtaining the priority between the logical cells corresponding to the physical cell from the F1 interface message, the processor 61 may determine the priority of each logical cell according to the priority indication field carried in the F1 interface message. level.

In an example of this embodiment, when obtaining the priority between the logical cells corresponding to the physical cell from the F1 interface message, the processor 61 may combine the F1 interface message PLMN according to a preset filling rule in ascending order or descending order. The order of filling in each logical cell in the list determines the priority of each logical cell.

In an embodiment, when the processor 61 sends the Other SI to the DU, it may send the Other SI to the DU through a gNB-CU configuration update message.

In some examples of this embodiment, after the state of the original target logical cell is switched to the blocked state, the processor 61 may select the logical cell with the highest priority from the remaining logical cells in the normal state as the new target logical cell according to the priority. .

This embodiment also provides a base station. Please refer to FIG. 7. The base station 70 includes a CU 71 and at least one DU 72. Each DU 72 is in communication connection with the CU 71. The CU 71 may be the aforementioned processor 61 executing the second system information transmission. The network device of the program, and the DU 72 may be the network device that the aforementioned processor 61 executes the first system information sending program.

The DU 72 configures the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell, and then sends the mapping relationship and priority to the CU 71 through the F1 interface message.

CU 71 obtains the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell from the F1 interface message, and then determines a normal logical cell from the logical cells corresponding to the physical cell according to the priority As the target logical cell, the Other SI of the target logical cell is used to characterize the Other SI of the physical cell, and the Other SI is system information other than SIB1. Subsequently, the CU 71 generates the Other SI according to the reselection parameters configured for the target logical cell by the network management system and sends the Other SI to the DU 72.

After the DU 72 receives the Other SI issued by the CU71 for the target logical cell, the physical cell issues the Other SI.

In this embodiment, the CU does not need to issue the Other SI for each logical cell, but only selects one logical cell for a physical cell as the representative target logical cell, and then sends the Other SI for the target logical cell to the DU , Let the DU use the Other SI of the target logical cell to characterize the Other SI of the physical cell. This can greatly reduce the number of other SI issuances by the CU, thereby reducing the overhead of the F1 interface between it and the DU. At the same time, in related technologies, because the CU will send Other SI to the DU in units of logical cells, in order to avoid the Other SI conflict of each logical cell from affecting the DU’s Other SI issuance, the CU side needs to target each logical cell of the same physical cell. Ensure that the configured Other SI parameters are consistent, but according to the solution provided in this application in real time, the logical cells corresponding to the same physical cell can be independent of each other in the configuration of Other SI and do not affect each other, which can greatly improve the operator’s logic Flexibility when configuring Other SI parameters in the cell.

According to the system information sending method, network equipment, base station, and storage medium provided by the embodiments of the present application, the DU can configure the mapping relationship between physical cells and logical cells and the priority between the logical cells corresponding to the physical cells, and the mapping relationship Send to CU with priority. After the CU obtains the mapping relationship and priority, it can determine a normal logical cell from each logical cell corresponding to the physical cell as the target logical cell according to the priority, and then generate and reselect the target logical cell according to the reselection parameters configured by the network management system for the target logical cell. Send Other SI to the DU, so that after receiving the Other SI of the target logical cell, the DU sends it to the UE side as the Other SI of the physical cell. In this method of sending system information, the CU does not need to issue Other SI for each logical cell. Instead, it selects only one logical cell as the representative target logical cell for a physical cell, and then sends the DU the target logical cell. The Other SI of the cell, let the DU use the Other SI of the target logical cell to characterize the Other SI of the physical cell. This can greatly reduce the number of other SI issuances by the CU, thereby reducing the overhead of the F1 interface between it and the DU. At the same time, in related technologies, because the CU will send Other SI to the DU in units of logical cells, in order to avoid the Other SI conflict of each logical cell from affecting the DU’s Other SI issuance, the CU side needs to target each logical cell of the same physical cell. Ensure that the configured Other SI parameters are consistent, but according to the solution provided in this application in real time, the logical cells corresponding to the same physical cell can be independent of each other in the configuration of Other SI and do not affect each other, which can greatly improve the operator’s logic Flexibility when configuring Other SI parameters in the cell.

Obviously, those skilled in the art should understand that all or some of the steps in the method disclosed above, the functional modules/units in the system, and the device can be implemented as software (which can be implemented by the program code executable by the computing device) , Firmware, hardware and their appropriate combination. In the hardware implementation, 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 . Such software may be distributed on a computer-readable medium and executed by a computing device. In some cases, the steps shown or described may be executed in a different order than here. The computer-readable medium may include computer storage. Medium (or non-transitory medium) and communication medium (or temporary medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile data implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Sexual, removable and non-removable media. Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other storage technologies, CD-ROM, 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 used to store desired information and that can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media usually contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as carrier waves or other transmission mechanisms, and may include any information delivery media. . Therefore, this application is not limited to any specific combination of hardware and software.

The above content is a further detailed description of the embodiments of the application in combination with specific implementations, and it cannot be considered that the specific implementations of the application are 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, and they should all be regarded as belonging to the scope of protection of this application.

Claims

A method for sending system information, including:

Configuring the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell;

Sending the mapping relationship and the priority to the centralization unit CU through an F1 interface message;

Receiving other system information Other SI issued by the CU for the target logical cell, where the target logical cell is a logical cell determined by the CU from the logical cells in the current state according to the priority, and The Other SI is system information other than the system information block SIB1;

Deliver the Other SI to the physical cell.
The method for sending system information according to claim 1, wherein the sending the mapping relationship and the priority to the CU via an F1 interface message comprises:

Sending the mapping relationship and the priority to the CU through an F1 establishment request message;

and / or,

The mapping relationship and the priority are sent to the CU through a gNB-DU configuration update message.
The method for sending system information according to claim 1, wherein the F1 interface message includes a priority indication field, and the priority indication field is used to indicate the priority of a logical cell; or, the F1 interface message is common The land mobile network PLMN list is filled in each logical cell corresponding to the physical cell according to the filling rule in ascending or descending order of priority.
A method for sending system information, including:

Receive the F1 interface message sent by the distribution unit DU;

Acquiring, from the F1 interface message, the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell;

According to the priority, a normal logical cell is determined from each logical cell corresponding to the physical cell as the target logical cell, and the Other SI of the target logical cell is used to characterize the Other SI of the physical cell. SI is system information other than SIB1;

Generate the Other SI according to the reselection parameters configured by the network management system for the target logical cell and send the Other SI to the DU.
The method for sending system information according to claim 4, wherein the determining a logical cell in a normal state as the target logical cell from the logical cells corresponding to the physical cell according to the priority includes:

Select a logical cell with the highest priority from each logical cell in a normal state corresponding to the physical cell as the target logical cell.
The method for sending system information according to claim 4, wherein obtaining the priority between the logical cells corresponding to the physical cell from the F1 interface message comprises:

Determine the priority of each logical cell according to the priority indication field carried in the F1 interface message;

or,

The priority of each logical cell is determined according to the preset ascending order filling rule or descending order filling rule combined with the filling order of each logical cell in the F1 interface message PLMN list.
The method for sending system information according to claim 4, wherein the sending the Other SI to the DU comprises:

The Other SI is sent to the DU through a gNB-CU configuration update message.
7. The system information sending method according to any one of claims 4-7, wherein the system information sending method further comprises:

After the state of the original target logical cell is switched to the blocked state, the logical cell with the highest priority is selected as the new target logical cell from the remaining logical cells in the normal state according to the priority.
A method for sending system information, including:

DU configures the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell;

The DU sends the mapping relationship and the priority to the CU through an F1 interface message;

Acquiring, by the CU, the mapping relationship between the physical cell and the logical cell and the priority between the logical cells corresponding to the physical cell from the F1 interface message;

The CU determines a normal logical cell from the logical cells corresponding to the physical cell as the target logical cell according to the priority, and the Other SI of the target logical cell is used to characterize the Other SI of the physical cell, The Other SI is system information other than SIB1;

The CU generates the Other SI according to the reselection parameters configured by the network management system for the target logical cell and sends the Other SI to the DU;

The DU issues the Other SI to the physical cell.
A network device, the network device including a processor, a memory, and a communication bus;

The communication bus is used to realize the connection and communication between the processor and the memory;

The processor is used to execute the first system information sending program stored in the memory to implement the steps of the system information sending method according to any one of claims 1 to 3; or the processor is used to execute the first system information sending program stored in the memory The second system information sending program is used to implement the steps of the system information sending method according to any one of claims 4 to 8.
A base station, comprising a CU and at least one DU, and the DU is in communication connection with the CU; the DU is a network device in which the processor in claim 10 executes the first system information sending program; and the CU is in claim 10 The processor executes the network device of the second system information sending program.
A storage medium storing any one of a first system information sending program and a second system information sending program, and the first system information sending program can be executed by one or more processors to realize the following The steps of the system information sending method according to any one of claims 1 to 3; the second system information sending program can be executed by one or more processors to realize the steps as described in any one of claims 4 to 8. The steps of the system information sending method described.