Indication method, method for acquiring system information block SIB1, and related apparatus

Abstract

An indication method, a method for acquiring a system information block SIB1, and a related apparatus. The method provided by the present application comprises: a first apparatus determines first cell state information, wherein the first cell state information is used for indicating a cell state of a first cell, the cell state of the first cell is broadcasting or not broadcasting the system information block SIB1 of the first cell, and the first cell is a cell for the first apparatus; and the first apparatus sends the first cell state information to the second apparatus. Therefore, the second apparatus obtains the first cell state information, so that the second apparatus helps the first apparatus to broadcast the first cell state information. The first apparatus does not need to periodically broadcast the SIB1 of the first cell, thereby effectively helping the first apparatus to reduce energy consumption.

Description

Indication method, method for obtaining system information block SIB1 and related device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on March 29, 2024, with application number 202410383650.2 and invention name “Indication method, method for obtaining system information block SIB1 and related devices”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to an indication method, a method for obtaining a system information block SIB1, and related devices. Background Art

[0003] As base station deployments expand and user data usage increases, base station power consumption becomes increasingly prominent. To conserve energy, base stations can opt out of transmitting certain signals or reduce their frequency. When a terminal device needs a signal, it can send a wake-up signal to the base station, prompting it to send the corresponding signal. This signal allows the terminal device to obtain relevant information and connect to the base station.

[0004] A cell's System Information Block 1 (SIB1) is a signal that is constantly broadcast by the base station. SIB1 provides essential system information to the cell, including cell access information and cell selection information. To ensure that terminal devices can obtain cell access and cell selection information, SIB1 is broadcast periodically. However, terminal devices do not necessarily need to receive SIB1 in real time. Periodic SIB1 broadcasts by base stations result in significant energy consumption. Therefore, how base stations transmit SIB1 to reduce energy consumption is a question worth considering. Summary of the Invention

[0005] The present application provides an indication method, a method for obtaining SIB1, and related devices, for a first device to send first cell status information to a second device. The first cell status information indicates the cell status of the first cell, where the cell status of the first cell indicates whether the SIB1 of the first cell is broadcast or not broadcast, and the first cell is the cell of the first device. This enables the second device to obtain the first cell status information, facilitates the second device to assist the first device in broadcasting the first cell status information, and eliminates the need for the first device to periodically broadcast the SIB1 of the first cell, thereby effectively helping the first device reduce energy consumption.

[0006] In a first aspect, the present application provides an indication method, which can be performed by a first device, which can be a first access network device, or a component in the first access network device (for example, a processor, a chip, or a chip system or a chip module, etc.), or a logic module or software that can implement all or part of the functions of the first access network device, or a logic module or software that can implement all or part of the functions of the first access network device. The method includes: the first device determines first cell status information, the first cell status information is used to indicate the cell status of the first cell, the cell status of the first cell is broadcasting or not broadcasting the SIB1 of the first cell, and the first cell is the cell of the first device; the first device sends the first cell status information to a second device.

[0007] As can be seen, the above technical solution enables the second device to obtain the first cell status information, facilitating the second device to assist the first device in broadcasting the first cell status information. The first device no longer needs to periodically broadcast the first cell's SIB1, thereby effectively helping the first device reduce energy consumption. For a terminal device, the terminal device can determine a method for obtaining the first cell's SIB1 based on the first cell status information and obtain the first cell's SIB1 using this method. This enables the terminal device to access or reside in the first cell based on the first cell's SIB1.

[0008] Based on the first aspect, in a possible implementation, the first device is a first centralized unit (CU), and the second device is a second CU; the first device determines the first cell status information, including: the first CU receives the first cell status information from the first distributed unit (DU). In this implementation, the first DU can determine the cell status of the first cell and generate the first cell status information. The first CU receives the first cell status information from the first DU, so that the first CU can send the first cell status information to the second CU. The second CU sends the first cell status information to the second DU, so that the second DU can help the first DU broadcast the first cell status information. The first DU does not need to periodically broadcast the SIB1 of the first cell, thereby effectively helping the first DU reduce energy consumption.

[0009] Based on the first aspect, in a possible implementation, before the first CU receives the first cell status information from the first DU, the method further includes: the first CU sends first indication information to the first DU, the first indication information is used to instruct the first DU to determine whether to broadcast the SIB1 of the first cell, or the first indication information is used to indicate whether to broadcast the SIB1 of the first cell. In this implementation, the first CU can authorize the first DU to decide whether to broadcast the SIB1 of the first cell, thereby clarifying that whether the cell sends SIB1 is decided and executed by the DU. Alternatively, the first CU can instruct the first DU to broadcast or not broadcast the SIB1 of the first cell, so that the CU specifies whether the cell sends SIB1.

[0010] Based on the first aspect, in one possible implementation, the method further includes: the first device sending configuration information of the first cell to the second device. In this implementation, the first device may further send the configuration information of the first cell to the second device. This facilitates the second device to assist the first device in broadcasting the configuration information of the first cell. This ensures that terminal devices in need obtain the SIB1 of the first cell based on the configuration information, facilitating access or resident access to the first cell by the terminal devices.

[0011] Based on the first aspect, in one possible implementation, the first device is a first CU and the second device is a second CU; before the first device sends the configuration information of the first cell to the second device, the method further includes: the first CU receives the configuration information of the first cell from the first DU. In this CU and DU separation architecture, the first CU can obtain the configuration information of the first cell from the first DU, thereby facilitating the first CU to send the configuration information of the first cell to the second CU. This facilitates the second CU to help the first DU broadcast the configuration information of the first cell.

[0012] Based on the first aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the first wake-up signal (WUS) configuration of the first cell, or the condition for triggering the terminal device to send the first WUS. This implementation shows some possible contents of the configuration information of the first cell. For example, the SIB1 of the first cell, so that the terminal device can obtain the SIB1 of the first cell from the second device, so that the terminal device can access or reside in the first cell. There is no need for the first device to periodically broadcast the SIB1 of the first cell, reducing the energy consumption overhead of the first device. For another example, the first WUS configuration of the first cell and the condition for triggering the terminal device to send the first WUS, so that the terminal device initiates the first WUS to trigger the first device to broadcast the SIB1 of the first cell.

[0013] Based on the first aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0014] Based on the first aspect, in a possible implementation, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the synchronization signal block (synchronization signal and PBCH block, SSB) received by the terminal device from the first cell is greater than or equal to a threshold value.

[0015] Based on the first aspect, in one possible implementation, the cell state of the first cell is not broadcasting the SIB1 of the first cell; the method further includes: the first device sending second cell state information to the second device, the second cell state information being used to indicate an updated cell state of the first cell, the updated cell state being broadcasting the SIB1 of the first cell, or the second cell state information being used to instruct the second device to stop sending the first cell state information, or the second cell state information being used to instruct the second device not to send the first cell state information. In this implementation, if the cell state of the first cell is updated, the first device may indicate the updated cell state of the first cell to the second device. This avoids unnecessary information transmission by the second device and reduces the energy consumption of the second device. For example, the second device may stop broadcasting the first cell state information and configuration information of the first cell.

[0016] Based on the first aspect, in one possible implementation, the first device is a first CU and the second device is a second CU; before the first device sends the second cell status information to the second device, the method further includes: the first CU receiving the second cell status information from the first DU. In this implementation, the first DU may decide to begin broadcasting the SIB1 of the first cell, and the first DU may instruct the first CU of the updated cell status of the first cell, thereby facilitating the first CU to send the second cell status information to the second CU, and enabling the second CU to instruct the second DU to stop broadcasting the first cell status information and / or the configuration information of the first cell.

[0017] Based on the first aspect, in a possible implementation, the method further includes: the first device receives second indication information from the second device, the second indication information is used to indicate the sending of the SIB1 of the first cell; the first device sends the SIB1 of the first cell. This implementation can improve communication performance in specific scenarios. For example, the second device is overloaded, or a large number of terminal devices need to access the first cell due to reasons such as cell switching, or the second device receives a second WUS or a second request, the second WUS is used to trigger the second device to instruct the first device to send the SIB1 of the first cell, and the second request is used to request the second device to instruct the first device to send the SIB1 of the first cell; the first device can receive the second indication information from the second device, and then the first device starts broadcasting the SIB1 of the first cell. Ensure the normal operation of the second device, or ensure that the terminal device can access the first cell.

[0018] Based on the first aspect, in one possible implementation, the first device is a first CU, and the second device is a second CU; the method further includes: the first CU receiving second indication information from the second CU, where the second indication information is used to instruct the transmission of SIB1 of the first cell; and the first CU sending the second indication information to the first DU. In this way, in a separate CU and DU architecture, the first DU can start broadcasting SIB1 of the first cell based on the second indication information, thereby improving system performance.

[0019] Based on the first aspect, in a possible implementation, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell, thereby indicating the cell status of the first cell through the third indication information.

[0020] Based on the first aspect, in a possible implementation manner, the second cell status information includes fourth indication information, and the fourth indication information is used to indicate the updated cell status of the first cell.

[0021] Based on the first aspect, in one possible implementation, the first cell status information is further used to indicate the cell status of a second cell, where the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell, and the second cell is the cell of the first device; or the method further includes: the first device determining third cell status information, where the third cell status information is used to indicate the cell status of the second cell, where the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell; and the first device sending the third cell status information to the second device. In this implementation, two possible indication methods are provided when the cell status of multiple cells needs to be indicated, enriching the implementation of the solution.

[0022] Based on the first aspect, in a possible implementation, the method also includes: the first device receives a first WUS or a first request from the terminal device, the first WUS is used to trigger the first device to send the SIB1 of the first cell, and the first request is used to request the SIB1 of the first cell; the first device sends the SIB1 of the first cell.

[0023] A second aspect of the present application provides an indication method, which can be performed by a second device, which can be a second access network device, or a component in the second access network device (for example, a processor, a chip, a chip system, or a chip module, etc.), or a logic module or software that can implement all or part of the functions of the second access network device, or a logic module or software that can implement all or part of the functions of the network device. The method includes: the second device receives first cell status information from a first device, the first cell status information is used to indicate the cell status of the first cell, the cell status of the first cell is broadcasting or not broadcasting the SIB1 of the first cell, and the first cell is the cell of the first device; the second device sends the first cell status information.

[0024] As can be seen, the above technical solution enables the second device to obtain the first cell status information and send the first cell status information. The second device can help the first device broadcast the first cell status information. The first device does not need to periodically broadcast the SIB1 of the first cell, thereby effectively helping the first device reduce energy consumption. For a terminal device, the terminal device can determine a method for obtaining the SIB1 of the first cell based on the first cell status information and obtain the SIB1 of the first cell using this method. This enables the terminal device to access or reside in the first cell based on the SIB1 of the first cell.

[0025] Based on the second aspect, in a possible implementation, the second device sends the first cell status information, including: if the cell status of the first cell is not broadcasting the SIB1 of the first cell, the second device sends the first cell status information. In this implementation, when the first cell does not broadcast SIB1, the second device sends the first cell status information. This helps the first device indicate the cell status of the first cell. It is convenient for the terminal device to determine a method for obtaining the SIB1 of the first cell based on the cell status of the first cell, and obtain the SIB1 of the first cell by obtaining the SIB1 of the first cell. This enables the terminal device to access or reside in the first cell based on the SIB1 of the first cell.

[0026] Based on the second aspect, in one possible implementation, the first cell status information is also used to indicate the cell status of the second cell, the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell, and the second cell is the cell of the first device; the second device sends the first cell status information, including: if the cell status of at least one of the first cell and the second cell is not broadcasting the SIB1 of the at least one cell, then the second device sends the first cell status information. This enables the second device to help the first device indicate the cell status of the at least one cell. This facilitates a terminal device that needs to access the at least one cell to obtain the SIB1 of the at least one cell based on the cell status of the at least one cell, and obtains the SIB1 of the first cell by obtaining the SIB1 of the at least one cell. This facilitates the terminal device to access or reside in the at least one cell based on the SIB1 of the at least one cell.

[0027] Based on the second aspect, in one possible implementation, the first cell status information is carried in a system information block or physical channel of the third cell. This allows the second device to help the first device broadcast the first cell status information without redefining a new message, thereby improving the practicality of the solution.

[0028] Based on the second aspect, in one possible implementation, the first device is a first CU, and the second device is a second CU; the second device sending the first cell status information includes: the second CU sending the first cell status information to the second DU. This facilitates the second DU broadcasting the first cell status information, enabling the second DU to help the first DU indicate the cell status of the first cell. This facilitates the terminal device to learn the cell status of the first cell.

[0029] Based on the second aspect, in one possible implementation, the method further includes: the second device receiving configuration information of the first cell from the first device; and the second device sending the configuration information of the first cell. In this implementation, the second device may further send the configuration information of the first cell to facilitate terminal devices requiring access to or resident in the first cell using the configuration information of the first cell.

[0030] Based on the second aspect, in one possible implementation, the first device is a first CU, and the second device is a second CU; the second device sends the configuration information of the first cell, including: the second CU sends the configuration information of the first cell to the second DU. This facilitates the second DU to broadcast the configuration information of the first cell. This facilitates terminal devices in need to access or reside in the first cell using the configuration information of the first cell.

[0031] Based on the second aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the first WUS configuration of the first cell, or the condition for triggering the terminal device to send the first WUS. This implementation shows some possible contents of the configuration information of the first cell. For example, the SIB1 of the first cell, so that the terminal device can obtain the SIB1 of the first cell from the second device, so that the terminal device can access or reside in the first cell. There is no need for the first device to periodically broadcast the SIB1 of the first cell, reducing the energy consumption overhead of the first device. For another example, the first WUS configuration of the first cell and the condition for triggering the terminal device to send the first WUS, so that the terminal device initiates the first WUS to trigger the first device to broadcast the SIB1 of the first cell.

[0032] Based on the second aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the WUS.

[0033] Based on the second aspect, in a possible implementation, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to the threshold value.

[0034] Based on the second aspect, in one possible implementation, the cell state of the first cell is not broadcasting the SIB1 of the first cell; the method further includes: a second device receiving second cell state information from the first device, the second cell state information being used to indicate an updated cell state of the first cell, the updated cell state being broadcasting the SIB1 of the first cell, or the second cell state information being used to indicate stopping sending the first cell state information, or the second cell state information being used to indicate not sending the first cell state information; and the second device stopping sending the first cell state information. In this implementation, if the cell state of the first cell is updated, the second device can obtain the updated cell state of the first cell. This avoids unnecessary information transmission by the second device and reduces energy consumption of the second device. For example, the second device can stop broadcasting the first cell state information and configuration information of the first cell.

[0035] Based on the second aspect, in one possible implementation, the first device is a first CU and the second device is a second CU; the method further includes: the second CU receives second cell status information from the first CU, the second cell status information is used to indicate an updated cell status of the first cell, the updated cell status is broadcasting SIB1 of the first cell, or the second cell status information is used to indicate to stop sending the first cell status information; the second CU sends the second cell status information to the second DU. This enables the second DU to obtain the second cell status information, making it easier for the second DU to know the updated cell status of the first cell. This avoids unnecessary information transmission by the second DU and reduces the energy consumption overhead of the second DU. For example, the second DU can stop broadcasting the first cell status information.

[0036] Based on the second aspect, in a possible implementation manner, the second cell status information includes fourth indication information, and the fourth indication information is used to indicate the updated cell status of the first cell.

[0037] Based on the second aspect, in one possible implementation, the method further includes: the second device sending second indication information to the first device, where the second indication information is used to instruct the first device to send the SIB1 of the first cell. This implementation can improve communication performance in specific scenarios. For example, when the second device is overloaded or a large number of terminal devices need to access the first cell due to reasons such as cell handover, the first device begins broadcasting the SIB1 of the first cell to ensure the normal operation of the second device or to ensure that the terminal devices can access the first cell.

[0038] Based on the second aspect, in one possible implementation, the first device is a first CU, and the second device is a second CU. The method further includes: the second CU sending second indication information to the first CU, where the second indication information is used to instruct the first DU to transmit the SIB1 of the first cell. This facilitates the first CU instructing the first DU to broadcast the SIB1 of the first cell, thereby ensuring that terminal devices requiring access can access or reside in the first cell.

[0039] Based on the second aspect, in a possible implementation, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell, thereby indicating the cell status of the first cell through the third indication information.

[0040] Based on the second aspect, in one possible implementation, the first cell state information is further used to indicate the cell state of a second cell, where the cell state of the second cell is broadcasting or not broadcasting SIB1 of the second cell, and the second cell is the cell of the first device. This enables the cell states of multiple cells to be indicated by the first cell state information.

[0041] Based on the second aspect, in one possible implementation, the method further includes: the second device receiving third cell status information from the first device, the third cell status information being used to indicate a cell status of the second cell, the cell status of the second cell being broadcast or non-broadcast of SIB1 of the second cell; and the second device sending the third cell status information, thereby enabling indication of the cell status of multiple cells.

[0042] In a third aspect, the present application provides a method for obtaining SIB1, which can be executed by a terminal device, or by a component in the terminal device (e.g., a processor, a chip, or a chip system or a chip module, etc.), or by a logic module or software that can implement all or part of the terminal device functions. The method includes: the terminal device receives first cell status information from a second device, the first cell status information is used to indicate the cell status of the first cell, the cell status of the first cell is broadcasting or not broadcasting the system information block SIB1 of the first cell, and the first cell is the cell of the first device; the terminal device determines a method for obtaining the SIB1 of the first cell based on the first cell status information; the terminal device obtains the SIB1 of the first cell based on the method of the SIB1 of the first cell.

[0043] As can be seen, the above technical solution enables a terminal device to obtain the SIB1 of the first cell. This enables the terminal device to access or reside in the first cell based on the SIB1 of the first cell. This ensures that terminal devices requiring access can normally access or reside in the first cell. Furthermore, the first device does not need to periodically broadcast the SIB1 of the first cell, effectively reducing energy consumption for the first device.

[0044] Based on the third aspect, in one possible implementation, if the cell state of the first cell is broadcasting the SIB1 of the first cell, the method for obtaining the SIB1 of the first cell includes: the terminal device receiving the SIB1 of the first cell from the first apparatus. Optionally, the terminal device determines the method for obtaining the SIB1 of the first cell based on the first cell state information, and the method for the terminal device obtaining the SIB1 of the first cell based on the SIB1 of the first cell can be alternatively described as: if the cell state of the first cell is broadcasting the SIB1 of the first cell, the terminal device receives the SIB1 of the first cell from the first apparatus.

[0045] Based on the third aspect, in one possible implementation, if the cell status of the first cell is not broadcasting the SIB1 of the first cell, a method for obtaining the SIB1 of the first cell includes: the terminal device sending a first WUS or a first request to the first apparatus, the first WUS being used to trigger the first apparatus to send the SIB1 of the first cell, and the first request being used to request the SIB1 of the first cell; and the terminal device receiving the SIB1 of the first cell from the first apparatus. If the first cell does not broadcast the SIB1, the terminal device may send a first WUS or a first request to trigger the first apparatus to broadcast the SIB1 of the first cell, thereby allowing the terminal device to obtain the SIB1 of the first cell. This enables the first apparatus to broadcast the SIB1 of the first cell on demand, thereby helping the first apparatus reduce energy consumption. Optionally, the terminal device determines a method for obtaining the SIB1 of the first cell based on the first cell status information. The method in which the terminal device obtains the SIB1 of the first cell based on the SIB1 of the first cell can be replaced by the description: if the cell status of the first cell is not to broadcast the SIB1 of the first cell, the terminal device sends a first WUS or a first request to the first device, and the first WUS is used to trigger the first device to send the SIB1 of the first cell, and the first request is used to request the SIB1 of the first cell; the terminal device receives the SIB1 of the first cell from the first device.

[0046] Based on the third aspect, in one possible implementation, the method further includes: a terminal device receiving configuration information of a first cell from a second device, the configuration information including a configuration for sending a first WUS; and the terminal device sending the first WUS to the first device, comprising: the terminal device sending the first WUS to the first device by sending the configuration for sending the first WUS. In this implementation, the second device can assist the first device in sending the configuration information of the first cell, thereby facilitating the terminal device initiating the first WUS. The terminal device thereby obtains the SIB1 of the first cell. This enables the first device to broadcast the SIB1 of the first cell on demand, thereby helping the first device reduce energy consumption.

[0047] Based on the third aspect, in one possible implementation, the configuration information further includes a condition for triggering the sending of the first WUS; and the terminal device sending the first WUS to the first apparatus using the configuration for sending the first WUS includes: when the condition for triggering the sending of the first WUS is met, the terminal device sending the first WUS to the first apparatus using the configuration for sending the first WUS. This enables the terminal device to select an appropriate cell and initiate the first WUS to trigger the first apparatus to send the SIB1 of the first cell. The terminal device thereby obtains the SIB1 of the first cell.

[0048] Based on the third aspect, in a possible implementation, if the cell state of the first cell is not broadcasting the SIB1 of the first cell, the method for obtaining the SIB1 of the first cell includes: the terminal device receives the SIB1 of the first cell from the second device. In this implementation, the terminal device obtains the SIB1 from the second device. The terminal device accesses the first cell to ensure that the terminal device can access the first cell normally. The first device does not need to broadcast the SIB1 of the first cell, which reduces the energy consumption overhead of the first device. Optionally, the terminal device determines the method for obtaining the SIB1 of the first cell based on the first cell state information, and the method for the terminal device to obtain the SIB1 of the first cell based on the SIB1 of the first cell can be replaced by the description: if the cell state of the first cell is not broadcasting the SIB1 of the first cell, the terminal device receives the SIB1 of the first cell from the second device.

[0049] Based on the third aspect, in a possible implementation, before the terminal device receives the SIB1 of the first cell from the second device, the method further includes: the terminal device sends a second WUS or a second request to the second device, the second WUS is used to trigger the second device to send the SIB1 of the first cell, and the second request is used to request the SIB1 of the first cell. This is to trigger the second device to help the first device broadcast the SIB1 of the first cell when needed. Reduce the energy consumption overhead of the second device. Optionally, the terminal device determines the method for obtaining the SIB1 of the first cell based on the first cell status information. The method for the terminal device to obtain the SIB1 of the first cell based on the SIB1 of the first cell can be replaced by: if the cell status of the first cell is not to broadcast the SIB1 of the first cell, the terminal device sends a second WUS or a second request to the second device, the second WUS is used to trigger the first device to send the SIB1 of the first cell, the second request is used to request the SIB1 of the first cell, and the terminal device receives the SIB1 of the first cell from the second device.

[0050] Based on the third aspect, in one possible implementation, if the cell status of the first cell is not broadcasting the SIB1 of the first cell, a method for obtaining the SIB1 of the first cell includes: the terminal device sending a third WUS or a third request to the second device, the third WUS being used to trigger the second device to instruct the first device to transmit the SIB1 of the first cell, and the third request being used to request the second device to instruct the first device to transmit the SIB1 of the first cell; and the terminal device receiving the SIB1 of the first cell from the first device. This enables on-demand triggering of the first device to transmit the SIB1 of the first cell, reducing energy consumption overhead of the first device. This also ensures that the terminal device can normally access or reside in the first cell. Optionally, the terminal device determines a method for obtaining the SIB1 of the first cell based on the first cell status information. The method in which the terminal device obtains the SIB1 of the first cell based on the SIB1 of the first cell can be replaced by the description: if the cell status of the first cell is not to broadcast the SIB1 of the first cell, the terminal device sends a third WUS or a third request to the second device, and the third WUS is used to trigger the second device to instruct the first device to send the SIB1 of the first cell, and the third request is used to request the second device to instruct the first device to send the SIB1 of the first cell; the terminal device receives the SIB1 of the first cell from the first device.

[0051] Based on the third aspect, in one possible implementation, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell, thereby indicating the cell status of the first cell through the third indication information.

[0052] Based on the third aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the first WUS configuration of the first cell, or the condition for triggering the terminal device to send the first WUS. This implementation shows some possible contents of the configuration information of the first cell. For example, the SIB1 of the first cell, so that the terminal device can obtain the SIB1 of the first cell from the second device, so that the terminal device can access or reside in the first cell. There is no need for the first device to periodically broadcast the SIB1 of the first cell, reducing the energy consumption overhead of the first device. For another example, the first WUS configuration of the first cell and the condition for triggering the terminal device to send the first WUS, so that the terminal device initiates the first WUS to trigger the first device to broadcast the SIB1 of the first cell.

[0053] Based on the third aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0054] Based on the third aspect, in a possible implementation, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to the threshold value.

[0055] In a fourth aspect, the present application provides an indication method, which can be executed by a first DU, or by a component in the first DU (e.g., a processor, a chip, a chip system, a chip module, etc.), or by a logic module or software that can implement all or part of the functions of the first DU. The method includes: the first DU determines first cell status information, the first cell status information is used to indicate the cell status of the first cell, and the cell status of the first cell is broadcasting or not broadcasting the SIB1 of the first cell; the first DU sends the first cell status information to the first CU.

[0056] In the above technical solution, the first DU can determine the cell status of the first cell. The first cell status information is sent to the first CU, thereby facilitating the first CU to send the first cell status information to the second CU. The second CU sends the first cell status information to the second DU, facilitating the second DU to assist the first DU in broadcasting the first cell status information. The first DU does not need to periodically broadcast the SIB1 of the first cell, thereby effectively helping the first DU reduce energy consumption.

[0057] Based on the fourth aspect, in a possible implementation, before the first DU determines the status information of the first cell, the method further includes: the first DU receives first indication information from the first CU, the first indication information is used to instruct the first DU to determine whether to broadcast the SIB1 of the first cell, or the first indication information is used to indicate whether to broadcast the SIB1 of the first cell. It can be seen that the first DU can decide whether to broadcast the SIB1 of the first cell to improve system performance. For example, when the load of the first DU is low and there is less business, the first DU may not broadcast the SIB1 of the first cell. This reduces the energy consumption overhead of the first DU.

[0058] Based on the fourth aspect, in one possible implementation, the method further includes: the first DU sending configuration information of the first cell to the first CU. This facilitates the first CU sending the configuration information of the first cell to the second CU. The second CU can send the configuration information of the first cell to the second DU, so that the second DU helps the first CU broadcast the configuration information of the first cell. The first DU does not need to broadcast SIB1 of the first cell, effectively reducing energy consumption overhead.

[0059] Based on the fourth aspect, in one possible implementation, the cell status of the first cell is not broadcasting the SIB1 of the first cell; the method also includes: the first DU sends the SIB1 of the first cell; the first DU sends the second cell status information to the first CU, and the second cell status information is used to indicate the updated cell status of the first cell, and the updated cell status of the first cell is to broadcast the SIB1 of the first cell. In this implementation, after the first DU starts broadcasting the SIB1 of the first cell, the first DU can indicate the updated cell status of the first cell to the first CU. In this way, the first CU can indicate the updated cell status of the first cell to the second CU. And the second CU can indicate the updated cell status of the first cell to the second DU. This avoids the second DU from sending unnecessary information and reduces the energy consumption overhead of the second DU. For example, the second DU can stop broadcasting the first cell status information.

[0060] Based on the fourth aspect, in one possible implementation, the method further includes: the first DU receiving second indication information from the first CU, the second indication information being used to instruct the first DU to transmit SIB1 of the first cell; and the first DU transmitting SIB1 of the first cell, thereby ensuring that terminal devices requiring access can access or reside in the first cell.

[0061] Based on the fourth aspect, in one possible implementation, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell, thereby indicating the cell status of the first cell through the third indication information.

[0062] Based on the fourth aspect, in a possible implementation manner, the second cell status information includes fourth indication information, and the fourth indication information is used to indicate the updated cell status of the first cell.

[0063] Based on the fourth aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the first WUS configuration of the first cell, or a condition triggering the terminal device to send the first WUS.

[0064] Based on the fourth aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0065] Based on the fourth aspect, in a possible implementation, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to the threshold value.

[0066] In a fifth aspect, the present application provides an indication method, which can be executed by a second DU, or by a component in the second DU (e.g., a processor, a chip, a chip system, a chip module, etc.), or by a logic module or software that can implement all or part of the second DU function. The method includes: the second DU receives first cell status information from the second CU, the first cell status information is used to indicate the cell status of the first cell, and the cell status of the first cell is broadcasting or not broadcasting the SIB1 of the first cell; the second DU sends the first cell status information.

[0067] It can be seen that the above technical solution enables the second DU to help the first DU indicate the cell status of the first cell, thereby eliminating the need for the first DU to periodically broadcast the SIB1 of the first cell, effectively helping the first DU reduce energy consumption.

[0068] Based on the fifth aspect, in one possible implementation, the second DU sends the first cell status information, including: if the cell status of the first cell is not broadcasting the SIB1 of the first cell, then the second DU sends the first cell status information. This facilitates the second DU sending the first cell status information when the first cell does not broadcast SIB1. This facilitates the terminal device to learn about the broadcast status of the SIB1 of the first cell, and thus obtain the SIB1 of the first cell using a corresponding method.

[0069] Based on the fifth aspect, in one possible implementation, the first cell status information is further used to indicate the cell status of a second cell, the cell status of the second cell being broadcast or non-broadcast of the SIB1 of the second cell, and the second cell being the cell of the first device; the second DU sending the first cell status information includes: if the cell status of at least one of the first cell and the second cell is non-broadcast of the SIB1 of the at least one cell, then the second DU sending the first cell status information. This facilitates the terminal device to learn that the at least one cell does not broadcast the SIB1, so as to facilitate obtaining the SIB1 of the at least one cell using a corresponding method.

[0070] Based on the fifth aspect, in a possible implementation, the method further includes: the second DU receives the configuration information of the first cell from the second CU; and the second DU sends the configuration information. This enables the second DU to help the first DU send the configuration information of the first cell. The first DU does not need to periodically broadcast the SIB1 of the first cell, thereby effectively helping the first DU reduce energy consumption. For the terminal device, the terminal device can obtain the SIB1 of the first cell in a corresponding manner based on the first cell status information and the configuration information of the first cell, thereby ensuring that the terminal device can normally access or reside in the first cell.

[0071] Based on the fifth aspect, in one possible implementation, the method further includes: the second DU receiving a second WUS or a second request from the terminal device, the second WUS being used to trigger the second DU to transmit the SIB1 of the first cell, and the second request being used to request the SIB1 of the first cell; and the second DU transmitting the SIB1 of the first cell. This enables triggering the second DU to assist the first DU in broadcasting the SIB1 of the first cell when needed.

[0072] Based on the fifth aspect, in a possible implementation manner, before the second DU receives the second WUS or the second request from the terminal device, the method further includes: the second DU receives the SIB1 of the first cell from the second CU.

[0073] Based on the fifth aspect, in a possible implementation manner, the method further includes: the second DU receives an indication from the second CU for instructing the second DU to send the SIB1 of the first cell; and the second DU sends the SIB1 of the first cell.

[0074] Based on the fifth aspect, in a possible implementation, before the second DU receives an indication from the second CU for instructing the second DU to send the SIB1 of the first cell, the method further includes: the second DU receives the SIB1 of the first cell from the second CU.

[0075] Based on the fifth aspect, in one possible implementation, the method further includes: the second DU receiving second cell status information from the second CU, the second cell status information being used to indicate an updated cell status of the first cell, the updated cell status being broadcasting SIB1 of the first cell, or the second cell status information being used to indicate stopping sending the first cell status information; the second DU stopping sending the first cell status information, or the second DU not sending the first cell status information. This avoids unnecessary information transmission by the second DU, thereby reducing energy consumption overhead of the second DU.

[0076] Based on the fifth aspect, in one possible implementation, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell, thereby indicating the cell status of the first cell through the third indication information.

[0077] Based on the fifth aspect, in one possible implementation, the first cell state information is carried on the SIB1 or physical channel of the third cell, thereby enabling the first cell state information to be sent without redefining a new message, thereby improving the practicality of the solution.

[0078] Based on the fifth aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the configuration of the first WUS of the first cell, or the condition for triggering the terminal device to send the first WUS.

[0079] Based on the fifth aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0080] Based on the fifth aspect, in a possible implementation method, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to the threshold value.

[0081] Based on the fifth aspect, in a possible implementation manner, the second cell status information includes fourth indication information, and the fourth indication information is used to indicate the updated cell status of the first cell.

[0082] A sixth aspect of the present application provides a first device, the first device including:

[0083] a processing module, configured to determine first cell status information, where the first cell status information is used to indicate a cell status of the first cell, the cell status of the first cell being broadcast or non-broadcast of SIB1 of the first cell, and the first cell being a cell of the first device;

[0084] The transceiver module is used to send the first cell status information to the second device.

[0085] Based on the sixth aspect, in a possible implementation, the first device is a first centralized unit (CU), and the second device is a second CU; the processing module is specifically used to: receive first cell status information from the first DU.

[0086] Based on the sixth aspect, in a possible implementation method, the transceiver module is also used to: send first indication information to the first DU, the first indication information is used to instruct the first DU to determine whether to broadcast the SIB1 of the first cell, or the first indication information is used to indicate whether to broadcast the SIB1 of the first cell.

[0087] Based on the sixth aspect, in a possible implementation manner, the transceiver module is further used to: send configuration information of the first cell to the second device.

[0088] Based on the sixth aspect, in a possible implementation, the first device is a first CU, and the second device is a second CU; the transceiver module is further used to: receive configuration information of the first cell from the first DU.

[0089] Based on the sixth aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the first WUS configuration of the first cell, or a condition triggering the terminal device to send the first WUS.

[0090] Based on the sixth aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0091] Based on the sixth aspect, in a possible implementation method, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to the threshold value.

[0092] Based on the sixth aspect, in a possible implementation method, the cell status of the first cell is not broadcasting the SIB1 of the first cell; the transceiver module is also used to: send second cell status information to the second device, the second cell status information is used to indicate the updated cell status of the first cell, the updated cell status is to broadcast the SIB1 of the first cell, or, the second cell status information is used to instruct the second device to stop sending the first cell status information, or, the second cell status information is used to instruct the second device not to send the first cell status information.

[0093] Based on the sixth aspect, in a possible implementation, the first device is a first CU, and the second device is a second CU; the transceiver module is further used to: receive second cell status information from the first DU.

[0094] Based on the sixth aspect, in a possible implementation, the transceiver module is further used to: receive second indication information from a second device, the second indication information is used to instruct to send the SIB1 of the first cell; and send the SIB1 of the first cell.

[0095] Based on the sixth aspect, in one possible implementation method, the first device is a first CU, and the second device is a second CU; the transceiver module is also used to: receive second indication information from the second CU, the second indication information is used to indicate the sending of SIB1 of the first cell; and send the second indication information to the first DU.

[0096] Based on the sixth aspect, in a possible implementation manner, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell.

[0097] Based on the sixth aspect, in a possible implementation method, the first cell status information is also used to indicate the cell status of the second cell, the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell, and the second cell is the cell of the first device; or, the processing module is also used to: determine the third cell status information, the third cell status information is used to indicate the cell status of the second cell, and the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell; the transceiver module is also used to: send the third cell status information to the second device.

[0098] Based on the sixth aspect, in a possible implementation method, the transceiver module is also used to: receive a first WUS or a first request from the terminal device, the first WUS is used to trigger the first device to send the SIB1 of the first cell, and the first request is used to request the SIB1 of the first cell; send the SIB1 of the first cell.

[0099] In the seventh aspect of the present application, a second device is provided, and the second device includes: a transceiver module for receiving first cell status information from a first device, the first cell status information is used to indicate the cell status of the first cell, the cell status of the first cell is to broadcast or not broadcast the SIB1 of the first cell, and the first cell is the cell of the first device; sending the first cell status information.

[0100] Based on the seventh aspect, in a possible implementation manner, the transceiver module is specifically configured to: if the cell status of the first cell is not broadcasting SIB1 of the first cell, send the first cell status information.

[0101] Based on the seventh aspect, in a possible implementation method, the first cell status information is also used to indicate the cell status of the second cell, the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell, and the second cell is the cell of the first device; the transceiver module is specifically used to: if the cell status of at least one cell in the first cell and the second cell is not broadcasting the SIB1 of at least one cell, then send the first cell status information.

[0102] Based on the seventh aspect, in a possible implementation manner, the first cell status information is carried in a system information block or physical channel of the third cell.

[0103] Based on the seventh aspect, in a possible implementation, the first device is a first CU, and the second device is a second CU; the transceiver module is further used to: send the first cell status information to the second DU.

[0104] Based on the seventh aspect, in a possible implementation manner, the transceiver module is further used to: receive configuration information of the first cell from the first device; and send the configuration information of the first cell.

[0105] Based on the seventh aspect, in a possible implementation, the first device is a first CU, and the second device is a second CU; the transceiver module is specifically used to: send the configuration information of the first cell to the second DU.

[0106] Based on the seventh aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the first WUS configuration of the first cell, or a condition that triggers the terminal device to send the first WUS.

[0107] Based on the seventh aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0108] Based on the seventh aspect, in a possible implementation method, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to the threshold value.

[0109] Based on the seventh aspect, in a possible implementation method, the cell status of the first cell is not broadcasting the SIB1 of the first cell; the transceiver module is also used to: receive second cell status information from the first device, the second cell status information is used to indicate the updated cell status of the first cell, the updated cell status is to broadcast the SIB1 of the first cell, or, the second cell status information is used to indicate to stop sending the first cell status information, or, the second cell status information is used to indicate not to send the first cell status information; the processing module is also used to: stop sending the first cell status information.

[0110] Based on the seventh aspect, in one possible implementation method, the first device is a first CU, and the second device is a second CU; the transceiver module is also used to: receive second cell status information from the first CU, the second cell status information is used to indicate the updated cell status of the first cell, the updated cell status is to broadcast the SIB1 of the first cell, or the second cell status information is used to indicate to stop sending the first cell status information; send the second cell status information to the second DU.

[0111] Based on the seventh aspect, in a possible implementation manner, the second cell status information includes fourth indication information, and the fourth indication information is used to indicate the updated cell status of the first cell.

[0112] Based on the seventh aspect, in a possible implementation, the transceiver module is further used to: send second indication information to the first device, where the second indication information is used to instruct the first device to send SIB1 of the first cell.

[0113] Based on the seventh aspect, in one possible implementation, the first device is a first CU, and the second device is a second CU; the transceiver module is also used to: send second indication information to the first CU, and the second indication information is used to instruct the first DU to send SIB1 of the first cell.

[0114] Based on the seventh aspect, in a possible implementation manner, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell.

[0115] Based on the seventh aspect, in a possible implementation, the first cell status information is also used to indicate the cell status of the second cell, the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell, and the second cell is the cell of the first device.

[0116] Based on the seventh aspect, in a possible implementation method, the transceiver module is also used to: receive third cell status information from the first device, the third cell status information is used to indicate the cell status of the second cell, and the cell status of the second cell is to broadcast or not broadcast the SIB1 of the second cell; send the third cell status information.

[0117] In an eighth aspect of the present application, a communication device is provided, which includes: a transceiver module for receiving first cell status information from a second device, the first cell status information is used to indicate the cell status of the first cell, the cell status of the first cell is to broadcast or not broadcast the SIB1 of the first cell, and the first cell is the cell of the first device; a processing module for determining a method for obtaining the SIB1 of the first cell based on the first cell status information; and obtaining the SIB1 of the first cell based on the method of the SIB1 of the first cell.

[0118] Based on the eighth aspect, in a possible implementation, if the cell state of the first cell is broadcasting the SIB1 of the first cell, a method for obtaining the SIB1 of the first cell includes: the communication device receives the SIB1 of the first cell from the first device.

[0119] Based on the eighth aspect, in a possible implementation method, if the cell status of the first cell is not broadcasting the SIB1 of the first cell, the method for obtaining the SIB1 of the first cell includes: the communication device sends a first WUS or a first request to the first device, the first WUS is used to trigger the first device to send the SIB1 of the first cell, and the first request is used to request the SIB1 of the first cell; the communication device receives the SIB1 of the first cell from the first device.

[0120] Based on the eighth aspect, in a possible implementation method, the transceiver module is also used to: receive configuration information of the first cell from the second device, the configuration information including the configuration of sending the first WUS; the communication device sends the first WUS to the first device, including: the communication device sends the first WUS to the first device by sending the configuration of the WUS.

[0121] Based on the eighth aspect, in a possible implementation method, the configuration information also includes a condition for triggering the sending of the first WUS; the communication device sends the first WUS to the first device through the configuration of sending the first WUS, including: when the condition for triggering the sending of the first WUS is met, the communication device sends the first WUS to the first device through the configuration of sending the first WUS.

[0122] Based on the eighth aspect, in a possible implementation method, if the cell status of the first cell is not broadcasting the SIB1 of the first cell, the method for obtaining the SIB1 of the first cell includes: the communication device receives the SIB1 of the first cell from the second device.

[0123] Based on the eighth aspect, in a possible implementation method, if the cell status of the first cell is not broadcasting the SIB1 of the first cell, the method for obtaining the SIB1 of the first cell includes: the communication device sends a second WUS or a second request to the second device, the second WUS is used to trigger the second device to instruct the first device to send the SIB1 of the first cell, and the second request is used to request the SIB1 of the first cell; the communication device receives the SIB1 of the first cell from the first device.

[0124] Based on the eighth aspect, in a possible implementation method, if the cell status of the first cell is not broadcasting the SIB1 of the first cell, the method for obtaining the SIB1 of the first cell includes: the communication device sends a third WUS or a third request to the second device, the third WUS is used to trigger the second device to instruct the first device to send the SIB1 of the first cell, and the third request is used to request the second device to instruct the first device to send the SIB1 of the first cell; the communication device receives the SIB1 of the first cell from the first device.

[0125] Based on the eighth aspect, in a possible implementation manner, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell.

[0126] Based on the eighth aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the first WUS configuration of the first cell, or a condition for triggering the communication device to send the first WUS.

[0127] Based on the eighth aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0128] Based on the eighth aspect, in a possible implementation, the condition for triggering the communication device to send the first WUS includes: the receiving power of the SSB received by the communication device from the first cell is greater than or equal to a threshold value.

[0129] A ninth aspect of the present application provides a communication device, the communication device comprising:

[0130] a processing module, configured to determine first cell state information, where the first cell state information is used to indicate a cell state of the first cell, and the cell state of the first cell is broadcasting or not broadcasting SIB1 of the first cell;

[0131] The transceiver module is configured to send the first cell status information to the first CU.

[0132] Based on the ninth aspect, in a possible implementation method, the transceiver module is also used to: receive first indication information from the first CU, the first indication information is used to instruct the communication device to determine whether to broadcast the SIB1 of the first cell, or the first indication information is used to indicate whether to broadcast the SIB1 of the first cell.

[0133] Based on the ninth aspect, in a possible implementation method, the transceiver module is further used to: send configuration information of the first cell to the first CU.

[0134] Based on the ninth aspect, in a possible implementation method, the cell status of the first cell is not broadcasting the SIB1 of the first cell; the transceiver module is also used to: send the SIB1 of the first cell; send second cell status information to the first CU, and the second cell status information is used to indicate the updated cell status of the first cell, and the updated cell status of the first cell is to broadcast the SIB1 of the first cell.

[0135] Based on the ninth aspect, in a possible implementation, the transceiver module is further used to: receive second indication information from the first CU, the second indication information is used to instruct the communication device to send SIB1 of the first cell; and send SIB1 of the first cell.

[0136] Based on the ninth aspect, in a possible implementation manner, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell.

[0137] Based on the ninth aspect, in a possible implementation, the second cell status information includes fourth indication information, and the fourth indication information is used to indicate the updated cell status of the first cell.

[0138] Based on the ninth aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the first WUS configuration of the first cell, or a condition that triggers the terminal device to send the first WUS.

[0139] Based on the ninth aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0140] Based on the ninth aspect, in a possible implementation method, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to the threshold value.

[0141] In the tenth aspect of the present application, a communication device is provided, which includes: a transceiver module for receiving first cell status information from a second CU, the first cell status information being used to indicate the cell status of the first cell, the cell status of the first cell being to broadcast or not broadcast the SIB1 of the first cell; and sending the first cell status information.

[0142] Based on the tenth aspect, in a possible implementation manner, the transceiver module is specifically used to: if the cell status of the first cell is not broadcasting SIB1 of the first cell, send the first cell status information.

[0143] Based on the tenth aspect, in a possible implementation method, the first cell status information is also used to indicate the cell status of the second cell, the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell, and the second cell is the cell of the first device; the transceiver module is specifically used to: if the cell status of at least one cell in the first cell and the second cell is not broadcasting the SIB1 of at least one cell, then send the first cell status information.

[0144] Based on the tenth aspect, in a possible implementation method, the transceiver module is further used to: receive configuration information of the first cell from the second CU; and send the configuration information.

[0145] Based on the tenth aspect, in a possible implementation method, the transceiver module is also used to: receive a second WUS or a second request from the terminal device, the second WUS is used to trigger the communication device to send the SIB1 of the first cell, and the second request is used to request the SIB1 of the first cell; send the SIB1 of the first cell.

[0146] Based on the tenth aspect, in a possible implementation manner, the transceiver module is further used to: receive SIB1 from the first cell of the second CU.

[0147] Based on the tenth aspect, in a possible implementation, the transceiver module is further used to: receive an instruction from the second CU for instructing the communication device to send the SIB1 of the first cell; and send the SIB1 of the first cell.

[0148] Based on the tenth aspect, in a possible implementation manner, the transceiver module is further used to: receive SIB1 from the first cell of the second CU.

[0149] Based on the tenth aspect, in a possible implementation method, the transceiver module is also used to: receive second cell status information from the second CU, the second cell status information is used to indicate the updated cell status of the first cell, the updated cell status is to broadcast the SIB1 of the first cell, or the second cell status information is used to indicate to stop sending the first cell status information; the processing module is also used to: stop sending the first cell status information, or not send the first cell status information.

[0150] Based on the tenth aspect, in a possible implementation manner, the first cell status information includes an identifier of the first cell and third indication information, and the third indication information is used to indicate the cell status of the first cell.

[0151] Based on the tenth aspect, in a possible implementation manner, the first cell state information is carried on the SIB1 or physical channel of the third cell.

[0152] Based on the tenth aspect, in a possible implementation, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, the configuration of the first WUS of the first cell, or the condition for triggering the terminal device to send the first WUS.

[0153] Based on the tenth aspect, in a possible implementation manner, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence of the first WUS.

[0154] Based on the tenth aspect, in a possible implementation method, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to the threshold value.

[0155] Based on the tenth aspect, in a possible implementation manner, the second cell status information includes fourth indication information, and the fourth indication information is used to indicate the updated cell status of the first cell.

[0156] In the eleventh aspect of the present application, a first device is provided, which may be a first access network device, or a module or unit (for example, a chip, or a chip system, or a circuit) in the first access network device that corresponds one-to-one to the method, operation, step, or action described in the first aspect, or a communication device that can be used in conjunction with the first access network device.

[0157] The twelfth aspect of the present application provides a second device, which can be a second access network device, or a module or unit (for example, a chip, or a chip system, or a circuit) in the second access network device that corresponds one-to-one to the method, operation, step, or action described in the second aspect, or a communication device that can be used in conjunction with the second access network device.

[0158] The thirteenth aspect of the present application provides a communication device, which can be a terminal device, or a module or unit (for example, a chip, or a chip system, or a circuit) in the terminal device that corresponds one-to-one to the method, operation, step, or action described in the third aspect, or a communication device that can be used in conjunction with the terminal device.

[0159] In the fourteenth aspect of the present application, a communication device is provided, which may be a first DU, or a module or unit (for example, a chip, or a chip system, or a circuit) in the first DU that corresponds one-to-one to the method, operation, step, or action described in the fourth aspect, or a communication device that can be used in conjunction with the first DU.

[0160] In the fifteenth aspect of the present application, a communication device is provided, which may be a second DU, or a module or unit (for example, a chip, or a chip system, or a circuit) in the second DU that corresponds one-to-one to the method, operation, step, or action described in the fourth aspect, or a communication device that can be used in conjunction with the second DU.

[0161] In the sixteenth aspect of the present application, a communication device is provided, which includes a processor, which is used to call a computer program or computer instruction in a memory, so that the processor is used to execute any implementation method of any aspect from the first to the fifth aspects.

[0162] Optionally, the communication device further includes a transceiver, and the processor is used to control the transceiver to perform any one of the implementation methods of any one of the first to fifth aspects.

[0163] Optionally, the processor is integrated with the memory.

[0164] In a seventeenth aspect, the present application provides a computer program product comprising computer instructions, characterized in that when the computer program product is run on a computer, the computer is enabled to execute any one of the implementation methods of any one of the first to fifth aspects.

[0165] In an eighteenth aspect, the present application provides a computer-readable storage medium comprising computer instructions. When the computer instructions are executed on a computer, the computer executes any one of the implementation methods in any one of the first to fifth aspects.

[0166] In the nineteenth aspect of the present application, a chip device is provided, comprising a processor for calling a computer program or computer instruction in a memory so that the processor executes any one of the implementation methods of any one of the first to fifth aspects above.

[0167] Optionally, the processor is coupled to the memory via an interface.

[0168] In a twentieth aspect of the present application, a communication system is provided, comprising the first apparatus as described in the first aspect and the second apparatus as described in the second aspect. Optionally, the communication system further comprises the terminal device as described in the third aspect; optionally, the communication system further comprises the first DU as described in the fourth aspect and the second DU as described in the fifth aspect.

[0169] Through the above technical solution, it can be known that the first device determines the first cell status information, and the first device sends the first cell status information to the second device. The first cell status information is used to indicate the cell status of the first cell. The cell status of the first cell is to broadcast or not broadcast the SIB1 of the first cell. The first cell is the cell of the first device. In this way, the second device obtains the first cell status information, which facilitates the second device to help the first device broadcast the first cell status information. The first device does not need to broadcast SIB1 periodically, thereby effectively helping the first device reduce energy consumption. For the terminal device, the terminal device can determine the method of obtaining the SIB1 of the first cell based on the first cell status information, and obtain the SIB1 of the first cell through the method of obtaining the SIB1 of the first cell. In this way, the terminal device can access or reside in the first cell based on the SIB1 of the first cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0170] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0171] FIG2 is a schematic diagram of the application architecture of the RAN intelligent controller (RIC) module in the open radio access network (ORAN) system of the present application;

[0172] FIG3 is a schematic structural diagram of an access network device according to an embodiment of the present application;

[0173] FIG4a is a schematic diagram showing that the first cell and the third cell are co-sited cells according to an embodiment of the present application;

[0174] FIG4 b is a schematic diagram showing that the first cell and the third cell are non-co-site cells according to an embodiment of the present application;

[0175] FIG5 is a schematic diagram of an embodiment of the indication method of the present application;

[0176] FIG6 is a schematic diagram of a scenario of the indication method according to an embodiment of the present application;

[0177] FIG7A is a schematic diagram of an embodiment of a method for obtaining SIB1 according to an embodiment of the present application;

[0178] FIG7B is a schematic diagram of a flow chart of a method for obtaining SIB1 of a first cell according to an embodiment of the present application;

[0179] FIG7C is a schematic diagram of another flow chart of a method for obtaining SIB1 of a first cell according to an embodiment of the present application;

[0180] FIG7D is a schematic diagram of another flow chart of a method for obtaining SIB1 of a first cell according to an embodiment of the present application;

[0181] FIG7E is a schematic diagram of another flow chart of a method for obtaining SIB1 of a first cell according to an embodiment of the present application;

[0182] FIG8 is a schematic diagram of another embodiment of the indication method according to an embodiment of the present application;

[0183] FIG9 is a schematic diagram of another embodiment of the indication method according to the embodiment of the present application;

[0184] FIG10 is a schematic diagram of another embodiment of the indication method according to the embodiment of the present application;

[0185] FIG11 is a schematic structural diagram of a device provided in an embodiment of the present application;

[0186] FIG12 is another schematic structural diagram of the device provided in an embodiment of the present application;

[0187] FIG13 is another schematic structural diagram of the device provided in an embodiment of the present application;

[0188] FIG14 is another structural diagram of the device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0189] Embodiments of the present application provide an indication method, a method for obtaining SIB1, and related devices, for a first device to send first cell status information to a second device. The first cell status information indicates the cell status of the first cell, where the cell status of the first cell indicates whether the SIB1 of the first cell is broadcast or not broadcast, and the first cell is the cell of the first device. This enables the second device to obtain the first cell status information, facilitating the second device to assist the first device in broadcasting the first cell status information. The first device no longer needs to periodically broadcast the SIB1 of the first cell, thereby effectively helping the first device reduce energy consumption.

[0190] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0191] References to "one embodiment" or "some embodiments" in this application mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0192] In the description of this application, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "plurality" means two or more. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c; a and b; a and c; b and c; or a, b, and c. Among them, a, b, and c can be single or multiple.

[0193] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG1 , the communication system includes a terminal device 101 , an access network device 102 , an access network device 103 , and a core network device 104 .

[0194] Both access network device 102 and access network device 103 can support access and communication of terminal device 101.

[0195] Optionally, the core network device 104 is used for access control, registration management, service management, mobility management, etc. for the terminal device 101 to access the network. For example, the core network device is an access and mobility management function (AMF). Alternatively, the core network device can be a network management device, such as an operations administration and maintenance (OAM) network element.

[0196] FIG. 1 above merely shows an example of a communication system, and the communication system may include more access network devices and / or more core network devices.

[0197] The technical solution of the present application can be applied to cellular communication systems related to the 3rd Generation Partnership Project (3GPP). For example, the 4th generation (4G) communication system, the 5th generation (5G) communication system, and the communication system after the 5th generation communication system. For example, the 6th generation communication system. For example, the 4th generation communication system may include a long term evolution (LTE) communication system, an LTE frequency division duplex (FDD) system, or an LTE time division duplex (TDD) system. The 5th generation communication system may include a new radio (NR) communication system. The technical solution of the present application can also be applied to wireless fidelity (WiFi) systems, communication systems that support the integration of multiple wireless technologies, device-to-device (D2D) systems, Internet of Things communication systems, industrial Internet communication systems, vehicle to everything (V2X) communication systems, or satellite communication systems, etc.

[0198] The following introduces the terminal equipment and access network equipment involved in this application.

[0199] Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), or customer premise equipment (CPE), is a device that includes wireless communication capabilities (providing voice and data connectivity to users). Examples include handheld devices, in-vehicle devices, and machine-type communication (MTC) terminals with wireless connectivity. Currently, terminal equipment can include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals used in industrial control, self-driving vehicles, remote medical surgery, smart grids, transportation safety, smart cities, and smart homes. For example, wireless terminals in unmanned driving can be drones, helicopters, or airplanes. For example, wireless terminals in the Internet of Vehicles can be onboard equipment, complete vehicle equipment, onboard modules, vehicles, or ships. Wireless terminals in industrial control can be cameras, robots, or robotic arms. Wireless terminals in smart homes can be televisions, air conditioners, sweepers, speakers, or set-top boxes. Terminal devices can also be transport vehicles with wireless communication capabilities, communication modules, or roadside units (RSUs) with terminal device functions.

[0200] It should be noted that the terminal device may be a device or apparatus with a chip, or a device or apparatus with integrated circuits, or a chip, module, or control unit in the above-mentioned devices or apparatuses, and this application does not limit this. For example, the chip may be a chip responsible for communication functions in the terminal device, such as a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip or system-in-package (SIP) chip containing a modem core.

[0201] Access network equipment is a device deployed in a radio access network to provide wireless communication capabilities for terminal devices. Access network equipment can also be called access network (RAN) entity, access node, network node, network equipment, or communication device.

[0202] Specifically, the access network device may be an access network device of a cellular system related to the 3rd Generation Partnership Project (3GPP). For example, a fourth-generation (4G) mobile communication system, a 5G mobile communication system, or a 6G mobile communication system. The access network device may also be an access network device in an open access network (open RAN, O-RAN or ORAN) or a cloud radio access network (CRAN). Alternatively, the access network device may also be an access network device in a communication system obtained by integrating two or more of the above communication systems.

[0203] Access network equipment includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, macro base station, micro base station, wireless relay node, donor node, wireless controller in CRAN scenario, wireless backhaul node, transmission point (TP) or transmission and receiving point (TRP). Access network equipment can also be access network equipment in 5G mobile communication system. For example, next generation NodeB (gNB) in new radio (NR) system, TRP, TP, or one or a group of antenna panels (including multiple antenna panels) of a base station in 5G mobile communication system. Alternatively, the access network device may also be a network node constituting a gNB or a transmission point. For example, a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be configured separately or included in the same network element. For example, a BBU. The RU may be included in a radio frequency device or radio frequency unit. For example, in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). Alternatively, the access network device may also be a server, a wearable device, a vehicle, or an on-board device. For example, in V2X technology, the access network device may be a road side unit (RSU).

[0204] It should be noted that in different systems, CU (or CU-CP and CU-UP), DU or RU may have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called an open centralized unit (O-CU) or an open CU, DU may also be called an open distributed unit (O-DU), a centralized unit control plane (CU-CP) may also be called an open centralized unit control plane (O-CU-CP) or an open CU-CP, a centralized unit user plane (CU-UP) may also be called an open centralized unit user plane (O-CU-UP) or an open CU-UP, and RU may also be called an open radio unit (O-RU). This application does not limit this. Any of the CU, CU-CP, CU-UP, DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0205] Optionally, for network elements in the ORAN system, each network element may implement the protocol layer functions shown in Table 1 below.

[0206] Table 1

[0207] It should be noted that the access network device can be one or more network elements shown in Table 1 above, and this application does not make any specific limitations.

[0208] It should be noted that Table 1 above is merely an example. In actual applications, the protocol layer functions supported by each network element are not limited. For example, each network element may support more protocol layer functions, or the protocol layer functions supported by each network element may be specifically configured based on actual conditions. This application does not impose any specific restrictions.

[0209] The following describes the architecture of the CU and DU of an access network device. The access network device includes at least one CU and at least one DU. Optionally, the access network device also includes at least one RU.

[0210] The following is an introduction using the example of an access network device including a CU and a DU. The CU has some functions of the core network, and the CU may include a CU-CP and a CU-UP. The CU and the DU may be configured according to the protocol layer functions of the wireless network they implement. For example, the CU is configured to implement the functions of the packet data convergence protocol (PDCP) layer and the protocol layers above it (for example, the RRC layer and / or the SDAP layer). The DU is configured to implement the functions of the protocol layers below the PDCP layer (for example, the RLC layer, the MAC layer, and / or the physical (PHY) layer). For another example, the CU is configured to implement the functions of the protocol layers above the PDCP layer (such as the RRC layer and / or the SDAP layer), and the DU is configured to implement the functions of the PDCP layer and the protocol layers below it (for example, the RLC layer, the MAC layer, and / or the PHY layer, etc.).

[0211] When a CU includes a CU-CP and a CU-UP, the CU-CP is used to implement the control plane functions of the CU, and the CU-UP is used to implement the user plane functions of the CU. For example, when the CU is configured to implement the functions of the PDCP layer, RRC layer, and SDAP layer, the CU-CP is used to implement the RRC layer functions and the control plane functions of the PDCP layer, and the CU-UP is used to implement the SDAP layer functions and the user plane functions of the PDCP layer.

[0212] The CU-CP can interact with network elements in the core network that are used to implement control plane functions. The network elements in the core network that are used to implement control plane functions can be access and mobility function network elements, such as the AMF in the 5G mobile communication system. The AMF is responsible for mobility management in the mobile network, such as location update of terminal devices, registration network of terminal devices, switching of terminal devices, etc. The CU-UP can interact with network elements in the core network that are used to implement user plane functions. The network elements in the core network that are used to implement user plane functions, such as the user plane function (UPF) in the 5G mobile communication system, are responsible for forwarding and receiving data in the terminal device.

[0213] The above configuration of CU and DU is only an example, and the functions of CU and DU can also be configured as needed. For example, the CU or DU can be configured to have the functions of more protocol layers, or the CU or DU can be configured to have partial processing functions of the protocol layer. For example, some functions of the RLC layer and the functions of the protocol layers above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set in the DU. For another example, the functions of the CU or DU can be divided according to the service type or other system requirements. For example, according to the delay, the functions whose processing time needs to meet the smaller delay requirement are set in the DU, and the functions that do not need to meet the delay requirement are set in the CU.

[0214] The DU and RU can work together to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of the DU and RU can be configured in various ways according to the design. For example, the DU is configured to implement the baseband function, and the RU is configured to implement the mid-RF function. For another example, the DU is configured to implement the high-layer functions in the PHY layer, and the RU is configured to implement the low-layer functions in the PHY layer or to implement the low-layer functions and the RF functions. The high-layer functions in the physical layer may include a part of the functions of the physical layer, which is closer to the MAC layer, and the low-layer functions in the physical layer may include another part of the functions of the physical layer, which is closer to the mid-RF side.

[0215] It should be noted that the access network device can be the device or apparatus shown above, or it can be a component (for example, a chip), module, or unit in the device or apparatus shown above, and this application does not limit it specifically.

[0216] Optionally, an RIC module is also involved under the ORAN architecture. As shown in Figure 2, Figure 2 is a schematic diagram of the application architecture involving the RIC module under the ORAN architecture. As shown in Figure 2, the communication system includes an RIC module, which is specifically divided into a near-real-time RIC (near-realtime RIC, near-RT RIC) module and a non-real-time RIC (non-real time RIC, Non-RT RIC) module. The near-real-time RIC module is used for model training and reasoning. For example, the near-real-time RIC module is used to train an artificial intelligence (AI) model and use the AI ​​model for reasoning. The near-real-time RIC module can also obtain information for training or reasoning the AI ​​model from the access network node (e.g., CU, CU-CP, CU-UP, DU, and / or RU), and can also obtain information for training or reasoning the AI ​​model from the terminal device. Optionally, the near-real-time RIC module can transmit the results obtained by training or reasoning the AI ​​model to the access network node and / or the terminal device. Optionally, the results can be exchanged between the CU, DU, and RU. For example, the near real-time RIC passes the result to the DU, and the DU sends the result to the RU, thereby realizing near real-time intelligent management of the access network.

[0217] The non-near real-time RIC module is used for AI model training and reasoning. For example, it is used to train AI models and use AI models for reasoning. The non-real-time RIC module can obtain data from access network nodes (e.g., CU, CU-CP, CU-UP, DU, and / or RU) and / or terminal devices, and use the data as training data or reasoning data to perform AI model training or reasoning to obtain corresponding results. The non-near real-time RIC module then passes the results to the access network node and / or terminal device. Optionally, the results can be exchanged between CU, DU, and RU. For example, the non-real-time RIC module passes the results to DU, and the DU sends the results to RU.

[0218] It should be understood that both the near-real-time RIC module and the non-real-time RIC module can be deployed separately as independent network elements or as part of other network devices. For example, the near-real-time RIC module can be deployed in an access network node. For example, the near-real-time RIC module can be deployed in a CU or DU, while the non-near-real-time RIC module can be deployed in an OAM, cloud server, core network device, or other network device.

[0219] The following is a schematic diagram of the structure of the access network equipment including the CU and DU. Figure 3 is a schematic diagram of the structure of the access network equipment of an embodiment of the present application. Taking the access network equipment as a gNB as an example, please refer to Figure 3. In the 5G communication system, gNBs are connected to each other via the Xn interface, and gNBs are connected to the fifth generation mobile communication technology core network (5GC) via the NG interface. As shown in Figure 3, gNB1 and gNB2 are connected via the Xn interface. gNB1 is connected to the 5GC via NG interface 1, and gNB2 is connected to the 5GC via NG interface 2.

[0220] A gNB can include a CU and a DU. This means that base station functions are divided, with some functions deployed in a gNB-CU and the remaining functions in a gNB-DU. Multiple gNB-DUs share a single gNB-CU, saving costs and facilitating network expansion. For example, as shown in Figure 3, gNB1 includes gNB-CU1, gNB-DU1, and gNB-DU2. gNB-CU1 connects to gNB-DU1 via F1 interface 1 and to gNB-DU2 via F1 interface 2. The structure of gNB2 is similar to that of gNB1 and will not be explained here.

[0221] Figure 3 above is only an example. A gNB-CU can be connected to one or more gNB-DUs, which is not limited in this application.

[0222] The gNB-CU and gNB-DU can be divided according to protocol stacks. For example, the protocol stacks corresponding to the RRC layer, SDAP layer, and PDCP layer are deployed in the gNB-CU. The protocol stacks corresponding to the radio link control (RLC) layer, MAC layer, and PHY layer are deployed in the gNB-DU. The gNB-CU and gNB-DU are connected via the F1 interface. The above example is only for the purpose of introducing the gNB-CU and gNB-DU. This application does not limit the protocol stacks deployed in the gNB-CU and gNB-DU.

[0223] In this application, in the following solutions where the access network equipment adopts the CU and DU structures, the gNB-CU is referred to as CU and the gNB-DU is referred to as DU.

[0224] It should be noted that CU and DU are a way of implementing the division of access network equipment into network units. The functions contained in CU and DU can be divided according to evolution or demand. This application does not limit the functions contained in CU and DU. This application does not limit the names corresponding to CU and DU.

[0225] With the expansion of base station deployment range and the increase of user data, the power consumption problem of base stations has become more and more prominent. In order to save energy consumption of base stations, base stations can not send certain signals or reduce the frequency of sending certain signals. When the terminal device needs the signal, the terminal device can send a wake-up signal to the base station to wake up the base station to send the corresponding signal. In this way, the terminal device can obtain relevant information based on the signal to access the base station. The SIB1 of the cell is a signal that the base station has been broadcasting. SIB1 is used to provide the cell with necessary system information, including cell access information, cell selection information, system information scheduling information, service cell public configuration information, and / or unified access control prohibition information, etc.

[0226] The following describes a possible format of SIB1. This application is also applicable to other formats, and this application does not limit them specifically.

[0227] The following introduces some information elements in SIB1 that are relevant to this application.

[0228] The cell selection information (cellSelectionInfo) information element includes cell selection information, which is used by the terminal device to determine whether the signal of the cell meets the conditions for cell selection. The cell access related information (cellAccessRelatedInfo) information element includes cell access related information. The interactive fault control (connEstFailureControl) information element indicates relevant information of the scenario in which the terminal device fails to access the cell. The system information scheduling information (si-SchedulingInfo) information element is used to indicate other system information (OSI) for scheduling. The serving cell common configuration (servingCellConfigCommon) includes the serving cell common configuration, including uplink and downlink frequency bands and initial partial bandwidth (BandWidth Part, BWP) information. The emergency service provision (ims-EmergencySupport) information element is used to indicate whether emergency calls in restricted service mode are supported. The eCall Over IMS-Support information element is used to indicate access control parameters, which are necessary information for the terminal device to determine whether a certain type of access service is allowed to be initiated.

[0229] In addition, there is cell barring information. Optionally, the cell barring information includes: whether non-terrestrial network (NTN) access is prohibited, whether reduced capability (redcap) access is prohibited, whether air to ground (ATG) access is prohibited, and whether network energy saving access is prohibited.

[0230] To ensure that terminal devices can obtain information such as cell access and cell selection, SIB1 is broadcast periodically. However, terminal devices do not need to receive SIB1 in real time. Periodic SIB1 broadcasts by base stations increase base station energy consumption. Therefore, how base stations transmit SIB1 to reduce base station energy consumption is a question worth considering.

[0231] The present application provides a corresponding technical solution, in which a first device determines the first cell status information, and the first device sends the first cell status information to a second device. The first cell status information is used to indicate the cell status of the first cell, and the cell status of the first cell is to broadcast or not broadcast the SIB1 of the first cell, and the first cell is the cell of the first device. This enables the second device to obtain the first cell status information, so that the second device can help the first device broadcast the first cell status information. The first device does not need to broadcast SIB1 periodically, thereby effectively helping the first device reduce energy consumption overhead. For a terminal device, the terminal device can determine a method for obtaining the SIB1 of the first cell based on the first cell status information broadcast by the second device, and obtain the SIB1 of the first cell through the method of obtaining the SIB1 of the first cell. This enables the terminal device to access or reside in the first cell based on the SIB1 of the first cell.

[0232] The first device may be a first access network device, or a network unit in the first access network device, or a component in the first access network device (e.g., a processor, a chip, or a chip system), or a logic module or software capable of implementing all or part of the functions of the first access network device. When the first access network device adopts a separate architecture of CU and DU, the first device may be a first CU.

[0233] The second device may be a second access network device, or a network unit in the second access network device, or a component in the second access network device (e.g., a processor, a chip, or a chip system, etc.), or a logic module or software capable of implementing all or part of the functions of the second access network device. When the second access network device adopts a separate architecture of CU and DU, the second device may be a second CU.

[0234] Optionally, the second device may broadcast the first cell status information in the third cell. The third cell is the cell of the second device. The signal coverage of the third cell includes the signal coverage of the first cell. In one possible implementation, the first cell and the second cell are co-station cells. That is, the first device and the second device are the same device. As shown in FIG4a , the first device and the second device are the same base station, the first cell is an energy-saving cell, and the third cell is an assisting cell. The signal coverage of the energy-saving cell is the same as the signal coverage of the assisting cell. In another possible implementation, the first cell and the third cell are not co-station cells. That is, the first device and the second device are different devices. As shown in FIG4b , the first device is base station 1, and the second device is base station 2. The first cell is an energy-saving cell, and the third cell is an assisting cell. The signal coverage of the assisting cell includes the signal coverage of the energy-saving cell.

[0235] In this application, the first cell may also be referred to as a first energy-saving cell (NES cell), and the second cell may also be referred to as a second energy-saving cell. Specifically, this application does not limit the names of the first cell and the second cell. The third cell may also be referred to as an anchor cell, or an auxiliary cell, etc. Specifically, this application does not limit the name of the third cell.

[0236] The technical solution of this application is introduced below in conjunction with specific embodiments.

[0237] FIG5 is a schematic diagram of an embodiment of the indication method of the present application. Referring to FIG5 , the method includes:

[0238] 501. A first device determines first cell status information.

[0239] The first cell state information is used to indicate the cell state of the first cell, which is broadcasting or not broadcasting the SIB1 of the first cell. The first cell is the cell of the first device, ie, the cell covered by the signal of the first device, or the cell served by the first device.

[0240] Optionally, the first cell state information includes an identifier of the first cell and third indication information. The third indication information is used to indicate the cell state of the first cell.

[0241] In one possible implementation, as shown in Table 2 below, the first cell status information includes a cell identification information element and a system information block 1 transmission indication information element. The cell identification information element includes an identifier of the first cell. The third indication information is a system information block 1 transmission indication (SIB1 Transmission Indication) information element, where the value of the system information block 1 transmission indication information element is broadcast or no broadcast.

[0242] Table 2

[0243] In this implementation, the first device indicates the cell status of the first cell by enumeration.

[0244] It should be noted that the value of the system information block 1 transmission indication information element in Table 2 above is only an example. The value of the system information block 1 transmission indication information element may also be other ways, which are not limited in this application. For example, the value of the system information block 1 transmission indication information element is 0 or 1. When the value of the system information block 1 transmission indication information element is 0, it indicates that the SIB1 of the first cell is not broadcast. When the value of the system information block 1 transmission indication information element is 1, it indicates that the SIB1 of the first cell is broadcast.

[0245] In another possible implementation, as shown in Table 3 below, the third indication information is carried in cell deactivation information of the first cell. The cell deactivation information includes a cell identification information element and a deactivation indication information element. The cell identification information element includes an identifier of the first cell. The deactivation indication information element has a value of "no SIB1 transmission," thereby indicating that the cell state of the first cell is not broadcasting the SIB1 of the first cell.

[0246] Table 3

[0247] Optionally, the first cell status information is further used to indicate the cell status of the second cell. The cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell. The second cell is the cell of the first device, that is, the cell covered by the signal of the first device, or the cell served by the first device.

[0248] In this implementation, the first cell status information may indicate the cell status of one or more cells. Optionally, the first device may indicate the cell status of each cell in a list format. For example, the cell status of the first cell is that the SIB1 of the first cell is not broadcast, and the cell status of the second cell is that the SIB1 of the second cell is not broadcast. As shown in Table 4, the first cell status information includes a list of cells that do not broadcast SIB1, and the list of cells that do not broadcast SIB1 includes the identifier of the first cell and the identifier of the second cell.

[0249] Table 4

[0250] The identifier of the first cell is used to uniquely identify the first cell. For example, the first cell can be specifically identified by the physical cell identifier (PCI) and SSB frequency information of the first cell. The identifier of the second cell is used to uniquely identify the second cell. For example, the second cell can be specifically identified by the PCI and SSB frequency information of the second cell.

[0251] 502. The first device sends first cell status information to the second device. Correspondingly, the second device receives the first cell status information from the first device.

[0252] Optionally, the first cell status information is carried in a new radio-radio access network (NR-RAN) configuration update request.

[0253] Optionally, the above step 502 may be replaced by: the first cell sends the first cell status information to the third cell. Accordingly, the third cell receives the first cell status information from the first cell. The signal coverage of the third cell includes the signal coverage of the first cell.

[0254] 503. The second device sends the first cell status information.

[0255] Optionally, the first cell state information is carried in a system information block or physical channel of a third cell. The third cell is a cell of the second device. In other words, the third cell is a cell covered by a signal of the second device. In other words, the third cell is a cell served by the second device. The signal coverage of the third cell includes the signal coverage of the first cell.

[0256] Optionally, if the cell status of the first cell is not broadcasting the SIB1 of the first cell, the second device sends the first cell status information. In this implementation, if the first cell does not broadcast SIB1, the second device may broadcast the first cell status information. This facilitates the terminal device to learn the cell status of the first cell. This facilitates the terminal device to obtain the SIB1 of the first cell through a corresponding method, thereby enabling access to or residence in the first cell.

[0257] Optionally, the first cell status information is also used to indicate the cell status of the second cell, and the cell status of the second cell is broadcasting or not broadcasting the SIB1 of the second cell. The second cell is the cell of the first device. If the cell status of at least one cell in the first cell and the second cell is not broadcasting the SIB1 of the at least one cell, the second device sends the first cell status information. For example, as shown in Table 4, the first cell status information includes a list of cells that do not broadcast SIB1. If the list of cells that do not broadcast SIB1 includes the identifier of the first cell and / or the identifier of the second cell, the second device can broadcast the first cell status information. It is convenient for the terminal device to know the cell status of the first cell and / or the cell status of the second cell. It is convenient for the terminal device to obtain the SIB1 of the first cell or the SIB1 of the second cell in a corresponding manner.

[0258] Optionally, the above step 503 may also be replaced with the description that: the third cell sends the first cell status information.

[0259] Optionally, the embodiment shown in FIG5 further includes steps 504 to 505 .

[0260] 504. The first device sends the configuration information of the first cell to the second device. Correspondingly, the second device receives the configuration information of the first cell from the first device.

[0261] Optionally, the configuration information of the first cell is carried in the NR-RAN configuration update request.

[0262] Optionally, the configuration information of the first cell includes at least one of the following: information included in the SIB1 of the first cell, configuration of the first WUS of the first cell, or a condition for triggering the terminal device to send the first WUS. The first WUS is used to trigger the first device to send the SIB1 of the first cell.

[0263] For information about the SIB1 of the first cell, please refer to the aforementioned introduction to SIB1. Optionally, the configuration of the first WUS of the first cell includes at least one of the following: time-frequency resources for sending the first WUS, or characteristic parameters for generating a pseudo-random sequence for the first WUS. For example, an index for generating a pseudo-random sequence for the first WUS. Optionally, the condition for triggering the terminal device to send the first WUS includes: the receiving power of the SSB received by the terminal device from the first cell is greater than or equal to a threshold value.

[0264] Optionally, the threshold value may be configured by the network device or determined by the terminal device. For example, the threshold value may be determined based on a cell reselection threshold. The threshold value is set to ensure that the cell service quality of the first cell is superior to the cell service quality of other cells for the terminal device, so that the terminal device chooses to access or reside in the first cell.

[0265] Optionally, the above step 504 may also be replaced with: the first cell sends the configuration information of the first cell to the third cell. Correspondingly, the third cell receives the configuration information of the first cell.

[0266] 505. The second device sends configuration information of the first cell.

[0267] Optionally, the configuration information of the first cell is carried on the system information block or physical channel of the third cell. The third cell is the cell of the second device, and the signal coverage area of ​​the third cell includes the signal coverage area of ​​the first cell. For example, as shown in Figure 4a or Figure 4b, the first cell is an energy-saving cell, and the third cell is an assisting cell. The signal coverage range of the energy-saving cell completely overlaps or partially overlaps with the signal coverage range of the assisting cell. As shown in Figure 6, the third cell is an energy-saving cell, and the configuration information of the first cell includes the SIB1 of the energy-saving cell. The second device carries the SIB1 of the assisting cell and the SIB1 of the energy-saving cell in the system information block of the assisting cell, and sends the system information block of the assisting cell.

[0268] Optionally, the configuration information of the first cell includes the SIB of the first cell. Before step 505, the second device receives a second WUS or a second request from the terminal device, where the second WUS is used to trigger the second device to send the SIB1 of the first cell, and the second request is used to request the SIB1 of the first cell. Then, the second device sends the SIB1 of the first cell.

[0269] Optionally, the first cell status information is further used to indicate the cell status of the second cell. Optionally, the first device sends configuration information of the second cell to the second device. Correspondingly, the second device receives the configuration information of the second cell from the first device. The second device sends the configuration information of the second cell.

[0270] It should be noted that there is no fixed execution order between steps 504 to 505 and steps 502 to 503. Steps 504 to 505 may be executed first, and then steps 502 to 503; or, steps 502 to 503 may be executed first, and then steps 504 to 505; or, steps 504 to 505 and steps 502 to 503 may be executed simultaneously depending on the circumstances, and this application does not limit this. For example, the first device may execute steps 502 and 504 simultaneously, that is, the first device may simultaneously send the first cell status information and the configuration information of the first cell. The second device may simultaneously execute steps 503 and 505, that is, the second device may simultaneously send the first cell status information and the configuration information of the first cell.

[0271] Optionally, the above step 505 may also be replaced with the description that: the third cell sends the configuration information of the first cell.

[0272] The above describes the corresponding operations performed by the first and second devices, using the example of the first cell status information also being used to indicate the cell status of the second cell. In practical applications, each cell may correspond to a piece of cell status information. Optionally, the first device determines third cell status information, which is used to indicate the cell status of the second cell. The cell status of the second cell is whether the SIB1 of the second cell is broadcast or not broadcast. The first device then sends the third cell status information to the second device. Correspondingly, the second device receives the third cell status information from the first device. The second device sends the third cell status information. Optionally, if the cell status of the second cell is not broadcasting the SIB1 of the second cell, the second device sends the third cell status information. Optionally, the first device sends the configuration information of the second cell to the second device. Correspondingly, the second device receives the configuration information of the second cell from the first device. The second device then sends the configuration information of the second cell. It should be understood that the first device may send the third cell status information and the configuration information of the second cell to the second device simultaneously, or may send the third cell status information and the configuration information of the second cell to the second device separately, without limitation in this application. The second device may send the third cell status information and the second cell configuration information simultaneously, or may send the third cell status information and the second cell configuration information separately, which is not limited in this application.

[0273] Optionally, the embodiment shown in FIG5 further includes step 506 .

[0274] 506. The second device sends fifth indication information to the first device. Correspondingly, the first device receives the fifth indication information from the second device.

[0275] The fifth indication information is used to instruct the second apparatus to help the first apparatus send the first cell state information. Optionally, the fifth indication information is further used to instruct the second apparatus to help the first apparatus send the configuration information of the first cell.

[0276] Optionally, the fifth indication information is carried in the NR-RAN configuration update request response.

[0277] It should be noted that step 506 may be performed after step 503. Optionally, if the embodiment shown in FIG5 further includes steps 504 to 505, step 506 may be performed after step 505.

[0278] Optionally, the above step 506 may also be replaced and described as: the third cell sends fifth indication information to the first cell.

[0279] It should be noted that, for the behavior of the terminal device, please refer to the relevant introduction in the embodiment shown in FIG. 7A later, which will not be described in detail here.

[0280] The following describes some possible execution operations of the first device and the second device in some possible scenarios.

[0281] Scenario 1: If the cell state of the first cell is not broadcasting the SIB1 of the first cell, and the cell state of the first cell is updated, optionally, the embodiment shown in FIG5 further includes steps 507 to 508. Steps 507 to 508 can be performed after step 503.

[0282] 507. The first device sends the second cell status information to the second device. Correspondingly, the second device receives the second cell status information from the first device.

[0283] The second cell status information is used to indicate an updated cell status of the first cell, where the updated cell status of the first cell is broadcasting SIB1 of the first cell. Alternatively, the second cell status information is used to instruct the second device to stop sending the first cell status information. Alternatively, the second cell status information is used to instruct the second device not to send the first cell status information.

[0284] Specifically, after the first device starts broadcasting the SIB1 of the first cell, the first device may send the second cell status information to the second device. For example, the first device receives the first WUS or the first request from the terminal device, the first WUS is used to trigger the first device to send the SIB1 of the first cell, the first request is used to request the SIB1 of the first cell, and the first device decides to start broadcasting the SIB1 of the first cell. The first device may send the second cell status information to the second device. As shown in Figure 6, the first cell is an energy-saving cell. After the energy-saving cell receives the first WUS or the first request, the energy-saving cell may start broadcasting the SIB1 of the energy-saving cell. The energy-saving cell sends the second cell status information to the assisting cell.

[0285] Optionally, the above step 507 may be replaced with: the first cell sends the second cell state information to the third cell. Correspondingly, the third cell receives the second cell state information from the first cell.

[0286] Optionally, the second cell status information includes fourth indication information, and the fourth indication information is used to indicate the updated cell status of the first cell.

[0287] 508. The second device stops sending the first cell status information.

[0288] Optionally, the above step 508 may also be replaced and described as: the second device does not send the first cell status information, or the third cell stops sending the first cell status information, or the third cell does not send the first cell status information.

[0289] Optionally, the second device stops sending the configuration information of the first cell. Alternatively, the second device does not send the configuration information of the first cell. In this implementation, if the updated cell state of the first cell is to broadcast the SIB1 of the first cell, the second device stops assisting the first device in broadcasting the configuration information of the first cell. For example, the second device stops broadcasting the SIB1 of the first cell, or the second device does not send the SIB1 of the first cell.

[0290] Optionally, the second cell status information is further used to indicate an updated cell status of the second cell, where the updated status of the second cell is not broadcasting the SIB1 of the second cell. The second device stops sending the first cell status information. Further, the second device sends the second cell status information. For example, as shown in Table 5, the second cell status information includes a list of cells that do not broadcast SIB1, and the list of cells that do not broadcast SIB1 includes the identifier of the second cell. Therefore, the second device broadcasts the second cell status information.

[0291] Table 5

[0292] It should be noted that the above Table 5 is an example of introducing the technical solution of the present application in which the cell list includes one cell identifier. In actual applications, the cell list may also include multiple cell identifiers.

[0293] Optionally, the second cell status information is further used to indicate an updated cell status of the second cell, where the updated cell status of the second cell is not broadcasting the SIB1 of the second cell. The second device sends configuration information of the second cell. That is, for cells that do not broadcast SIB1, the second device still sends the cell status and configuration information of the cells that do not broadcast SIB1.

[0294] It should be noted that if the embodiment shown in FIG. 5 further includes steps 504 to 505 , steps 507 to 508 may be performed after step 505 .

[0295] Optionally, the embodiment shown in FIG5 further includes step 509 , which may be performed after step 508 .

[0296] 509. The second device sends sixth indication information to the first device. Correspondingly, the first device receives the sixth indication information from the second device.

[0297] The sixth indication information is used to instruct the second device to stop sending or not send the first cell state information. Optionally, the sixth indication information is also used to instruct the second device to stop sending or not send the configuration information of the first cell.

[0298] Optionally, the sixth indication information is carried in the NR-RAN configuration response.

[0299] Scenario 2: If the second device does not send the first cell status information for some reason, for example, the third cell is overloaded or a large number of terminal devices need to access the first cell due to reasons such as cell switching, or the second device receives a third WUS or a third request from the terminal device, the third WUS is used to trigger the second device to instruct the first device to send the SIB1 of the first cell, and the third request is used to request the second device to instruct the first device to send the SIB1 of the first cell. Optionally, the embodiment shown in Figure 5 also includes steps 510 to 511. Steps 510 to 511 can be performed after step 503.

[0300] 510. The second device sends second indication information to the first device. Correspondingly, the first device receives the second indication information from the second device.

[0301] The second indication information is used to indicate sending the SIB1 of the first cell.

[0302] Optionally, the second indication information is carried in the NR-RAN configuration request.

[0303] 511. The first device sends SIB1 of the first cell.

[0304] Optionally, after the first device receives the second indication information, the first device starts to send the SIB1 of the first cell. Alternatively, after the first device receives the second indication information for a preset period of time, the first device starts to send the SIB1 of the first cell.

[0305] Specifically, after the first device receives the second indication information, the first device may change from a state of not sending the SIB1 of the first cell to a state of sending the SIB1 of the first cell.

[0306] Optionally, if the embodiment shown in FIG. 5 further includes steps 504 to 505 , steps 510 to 511 may be performed after step 505 .

[0307] Optionally, the embodiment shown in FIG5 further includes step 512 , which may be performed after step 511 .

[0308] 512. The first device sends seventh indication information to the second device. Correspondingly, the second device receives the seventh indication information from the first device.

[0309] The seventh indication information is used to instruct the first device to send the SIB1 of the first cell. Optionally, the seventh indication information is carried in the NR-RAN configuration response.

[0310] In an embodiment of the present application, a first device determines first cell status information, and the first device sends the first cell status information to a second device. The first cell status information is used to indicate the cell status of the first cell, where the cell status of the first cell is whether the SIB1 of the first cell is broadcast or not broadcast, and the first cell is the cell of the first device. This enables the second device to obtain the first cell status information, facilitating the second device to assist the first device in broadcasting the first cell status information. The first device does not need to periodically broadcast SIB1, thereby effectively helping the first device reduce energy consumption. For a terminal device, the terminal device can determine, based on the first cell status information broadcast by the second device, to trigger the first device to transmit the SIB1 of the first cell.

[0311] The following describes the execution operation of the terminal device in conjunction with the embodiment shown in FIG. 7A .

[0312] FIG7A is a schematic diagram of an embodiment of a method for obtaining SIB1 according to an embodiment of the present application. Referring to FIG7A , the method includes the following steps.

[0313] It should be noted that while the embodiment shown in FIG7A uses a terminal device as an example to illustrate the method, this application does not limit the execution subject of this interaction. For example, while the execution subject in steps 701 to 704 in the embodiment shown in FIG7A is a terminal device, the execution subject may also be a chip, chip system, or processor that supports the terminal device to implement the method, or a logic module or software that can implement all or part of the terminal device functions, and this application does not limit this.

[0314] 701. A second apparatus sends first cell status information to a terminal device. Correspondingly, the terminal device receives the first cell status information from the second apparatus.

[0315] Regarding the first cell status information, please refer to the relevant description in step 501 of the embodiment shown in Figure 5 above, which will not be repeated here. Regarding the sending method of the first cell status information by the second device, please refer to the relevant description in step 503 of the embodiment shown in Figure 5 above, which will not be repeated here.

[0316] 702. The terminal device determines a method for obtaining SIB1 of the first cell based on the first cell status information.

[0317] 703. The terminal device obtains the SIB1 of the first cell according to the method for obtaining the SIB1 of the first cell.

[0318] The following describes some possible ways to obtain the SIB1 of the first cell in combination with the first cell state information. The following implementation is only an example, and this application is still applicable to other implementations, which are not specifically limited in this application.

[0319] In a possible implementation, if the cell state of the first cell is to broadcast the SIB1 of the first cell, a method for obtaining the SIB1 of the first cell will be described below in conjunction with the embodiment shown in FIG7B .

[0320] Step 1.1: If the cell state of the first cell is broadcasting the SIB1 of the first cell, the terminal device receives the SIB1 of the first cell from the first apparatus. In this implementation, the terminal device may obtain the SIB1 of the first cell from the first apparatus.

[0321] In this implementation, the above steps 702 to 703 can be replaced by the following description: if the first cell status information is used to indicate the cell status of the first cell, and the cell status of the first cell is to broadcast the SIB1 of the first cell, the terminal device receives the SIB1 of the first cell from the first device.

[0322] In another possible implementation, if the cell state of the first cell is not broadcasting the SIB1 of the first cell, there are multiple ways to obtain the SIB1 of the first cell. The following describes several possible acquisition methods. This application is still applicable to other acquisition methods and is not specifically limited in this application.

[0323] The following describes the first approach in conjunction with the embodiment shown in FIG. 7C .

[0324] Step 2.1: The terminal device sends a first WUS or a first request to the first apparatus, where the first WUS is used to trigger the first apparatus to send the SIB1 of the first cell, and the first request is used to request the first apparatus to send the SIB1 of the first cell. Accordingly, the first apparatus receives the first WUS or the first request from the terminal device.

[0325] Optionally, the first WUS is carried in message 1 (Msg1) in the two-step random access process. The first request is carried in Msg3 in the four-step random access process.

[0326] Optionally, before step 2.1, the terminal device receives configuration information of the first cell from the second device, where the configuration information of the first cell includes a configuration for sending a first WUS. The terminal device sends the first WUS to the first device using the configuration for sending the first WUS. Optionally, the configuration information of the first cell also includes a condition for triggering the terminal device to send the first WUS. When the condition for triggering the terminal device to send the first WUS is met, the terminal device sends the first WUS to the first device using the configuration for sending the first WUS.

[0327] Step 2.2: The first device sends the SIB1 of the first cell. Correspondingly, the terminal device receives the SIB1 of the first cell from the first device.

[0328] After the first device receives the first WUS or the first request, the first device sends the SIB1 of the first cell.

[0329] In this implementation, the above steps 702 to 703 can be replaced by the following description: if the first cell status information is used to indicate the cell status of the first cell, and the cell status of the first cell is not to broadcast the SIB1 of the first cell, the terminal device sends a first WUS or a first request to the first device, and the first WUS is used to trigger the first device to send the SIB1 of the first cell, and the first request is used to request the first device to send the SIB1 of the first cell; the terminal device receives the SIB1 of the first cell from the first device.

[0330] The second approach is described below in conjunction with the embodiment shown in FIG. 7D .

[0331] Step 3.1: The second apparatus sends the SIB1 of the first cell to the terminal device; correspondingly, the terminal device receives the SIB1 of the first cell from the second apparatus.

[0332] For example, the terminal device receives configuration information of a first cell from the second apparatus, where the configuration information of the first cell includes information included in the SIB1 of the first cell. The terminal device obtains the SIB1 of the first cell through the configuration information of the first cell.

[0333] Optionally, the embodiment shown in FIG7D further includes step 3.0, and step 3.0 may be performed before step 3.1.

[0334] Step 3.0: The terminal device sends a second WUS or a second request to the second apparatus. Correspondingly, the second apparatus receives the second WUS or the second request from the terminal device.

[0335] The second WUS is used to trigger the second device to send the SIB1 of the first cell, and the second request is used to request the second device to send the SIB1 of the first cell.

[0336] Optionally, before the terminal device receives the SIB1 of the first cell from the second device, the terminal device sends a second WUS or a second request to the second device. This triggers the second device to send the SIB1 of the first cell. This enables the second device to broadcast the SIB1 of the first cell on demand, reduces the frequency of sending the SIB1 of the first cell, and helps reduce energy consumption overhead of the second device.

[0337] In this implementation, the above steps 702 to 703 can be replaced by the following description: if the first cell status information is used to indicate the cell status of the first cell, and the cell status of the first cell is not broadcasting the SIB1 of the first cell, the terminal device receives the SIB1 of the first cell from the second device.

[0338] The third approach is described below in conjunction with the embodiment shown in FIG. 7E .

[0339] Step 4.1: The terminal device sends a third WUS or a third request to the second apparatus. Correspondingly, the second apparatus receives the third WUS or the third request from the terminal device.

[0340] The third WUS is used to trigger the second device to instruct the first device to send the SIB1 of the first cell. The third request is used to request the second device to instruct the first device to send the SIB1 of the first cell.

[0341] Step 4.2: The second device sends an indication to the first device to instruct the first device to send the SIB1 of the first cell.

[0342] Step 4.3: The first device sends the SIB1 of the first cell, and accordingly, the terminal device receives the SIB1 of the first cell from the first device.

[0343] In this implementation, the above steps 702 to 703 can be replaced by the following description: if the first cell status information is used to indicate the cell status of the first cell, and the cell status of the first cell is not to broadcast the SIB1 of the first cell, the terminal device sends a third WUS or a third request to the second device, the third WUS is used to trigger the second device to instruct the first device to send the SIB1 of the first cell, and the third request is used to request the second device to instruct the first device to send the SIB1 of the first cell; the terminal device receives the SIB1 of the first cell from the first device.

[0344] Optionally, the embodiment shown in FIG. 7A further includes step 704 , which may be performed after step 703 .

[0345] 704. The terminal device accesses or resides in the first cell through SIB1 of the first cell.

[0346] For information included in the SIB1 of the first cell, please refer to the previous introduction about SIB1.

[0347] For example, the SIB1 of the first cell includes a prohibited access identifier and a selection parameter of the first cell. The terminal device determines that the terminal device identifier does not belong to the prohibited access identifier of the first cell. The terminal device determines that the terminal device meets the selection conditions for accessing the first cell based on the selection parameter, and the terminal device accesses the first cell.

[0348] In the embodiment shown in FIG7A above, the terminal device receives the first cell status information from the second device. The first cell status information is used to indicate the cell status of the first cell, and the cell status of the first cell is broadcasting or not broadcasting the SIB1 of the first cell, and the first cell is the cell of the first device. The terminal device determines the method for obtaining the SIB1 of the first cell based on the first cell status information. The terminal device obtains the SIB1 of the first cell according to the method for obtaining the SIB1 of the first cell. In this way, the terminal device obtains the SIB1 of the first cell, and the terminal device can access or reside in the first cell based on the SIB1 of the first cell. The first device does not need to periodically broadcast the SIB1 of the first cell, thereby effectively helping the first device to reduce energy consumption. At the same time, it can also ensure that the terminal device can normally obtain the SIB1 of the first cell.

[0349] The following describes the technical solution of the present application in conjunction with the embodiment shown in FIG8 , taking the first device as the first CU and the second device as the second CU as an example.

[0350] FIG8 is a schematic diagram of another embodiment of the indication method of the present application. Referring to FIG8 , the method includes:

[0351] 801. A first CU sends first cell state information to a second CU. Correspondingly, the second CU receives the first cell state information from the first CU.

[0352] For the first cell status information, please refer to the relevant introduction in step 501 in the embodiment shown in FIG5 , which will not be repeated here.

[0353] Optionally, the first cell status information is carried in the NR-RAN configuration update request.

[0354] Optionally, the embodiment shown in FIG8 further includes step 801a , and step 801a may be performed before step 801 .

[0355] 801a. The first DU sends first cell status information to the first CU. Correspondingly, the first CU receives the first cell status information from the first DU.

[0356] Optionally, the embodiment shown in FIG8 further includes step 801b, and step 801b may be performed before step 801a.

[0357] 801b: The first CU sends first indication information to the first DU. Correspondingly, the first DU receives the first indication information from the first CU.

[0358] The first indication information is used to instruct the first DU to determine whether to broadcast the SIB1 of the first cell, or the first indication information is used to instruct to broadcast or not broadcast the SIB1 of the first cell.

[0359] Specifically, the first CU can determine, based on the status of the first DU and the load condition of the first cell, that the first DU can independently decide whether to broadcast the SIB1 of the first cell. The first CU sends a first indication message to the first DU. For example, as shown in Table 6, the first indication message is a cell list element that allows not broadcasting SIB1, and the cell list element that allows not broadcasting SIB1 includes a global identification new radio interface identifier (radiocell global identifier, NR CGI) element, and the NR CGI element includes the identifiers of one or more cells. The identifiers of the one or more cells include the identifier of the first cell. After the first DU receives the first indication message, the first DU can determine whether to broadcast the SIB1 of the first cell and generate the first cell status information.

[0360] Table 6

[0361] Optionally, the first indication information is carried in a gNB-DU Configuration Update message. Correspondingly, the first cell state information is carried in a gNB-DU Configuration Update Confirm message.

[0362] 802. The second CU sends first cell status information to the second DU. Correspondingly, the second DU receives the first cell status information from the second CU.

[0363] Optionally, the first cell status information is carried in the gNB-CU configuration update message.

[0364] 803. The second DU sends the first cell status information.

[0365] Optionally, the first cell state information is carried on a system information block or a physical channel of a third cell. The third cell is a cell of the first DU. The signal coverage of the third cell includes the signal coverage of the first cell.

[0366] Optionally, the embodiment shown in FIG8 further includes steps 804 to 806 .

[0367] 804. The first CU sends configuration information of the first cell to the second CU. Correspondingly, the second CU receives the configuration information of the first cell from the first CU.

[0368] For the configuration information of the first cell, please refer to the relevant introduction in the embodiment shown in Figure 5 above, which will not be repeated here.

[0369] Optionally, the configuration information of the first cell is carried in the NR-RAN configuration update request.

[0370] 805. The second CU sends the configuration information of the first cell to the second DU. Correspondingly, the second DU receives the configuration information of the first cell from the second CU.

[0371] Optionally, the configuration information of the first cell is carried in the gNB-CU configuration update message.

[0372] Optionally, the configuration information of the first cell includes the SIB1 of the first cell. After step 804 and before step 805, the second CU receives a second request from the terminal device, where the second request is used to request the SIB1 of the first cell.

[0373] 806. The second DU sends configuration information of the first cell.

[0374] Optionally, the configuration information of the first cell is carried on the system information block or physical channel of the third cell.

[0375] Optionally, the configuration information of the first cell includes the SIB1 of the first cell. Optionally, after step 805 and before step 806, the second DU receives a second WUS from the terminal device, where the second WUS is used to request the second DU to send the SIB1 of the first cell.

[0376] Optionally, there is no fixed order for executing steps 801 to 803 and steps 804 to 806. Steps 801 to 803 may be executed first, followed by steps 804 to 806; or steps 804 to 806 may be executed first, followed by steps 801 to 803; or, depending on the circumstances, steps 801 to 803 and steps 804 to 806 may be executed simultaneously, which is not limited in this application.

[0377] Optionally, the embodiment shown in FIG8 further includes step 804a. Step 804a may be performed before step 804.

[0378] 804a. The first DU sends configuration information of the first cell to the first CU. Correspondingly, the first CU receives the configuration information of the first cell from the first DU.

[0379] Specifically, the first DU determines not to broadcast the SIB1 of the first cell. The first DU can send the configuration information of the first cell to the first CU. This facilitates the first CU to send the configuration information of the first cell to the second CU, and facilitates the second CU to send the configuration information of the first cell to the second DU. The second DU broadcasts the configuration information of the first cell.

[0380] Optionally, the configuration information of the first cell is carried in the gNB-DU configuration update message.

[0381] Optionally, there is no fixed order for executing step 804a and step 801a. Step 804a may be executed first, then step 801a; or step 801a may be executed first, then step 804a; or, step 801a and step 804a may be executed simultaneously depending on the circumstances, which is not limited in this application.

[0382] Optionally, the embodiment shown in FIG8 further includes steps 807 and 808. Steps 807 and 808 may be performed after step 803.

[0383] 807. The second DU sends eighth indication information to the second CU. Correspondingly, the second CU receives the eighth indication information from the second DU.

[0384] The eighth indication information is used to instruct the second DU to send the first cell status information. Optionally, the eighth indication information is used to instruct the second DU to send the configuration information of the first cell.

[0385] Optionally, the eighth indication information is carried in the gNB-CU configuration update confirmation message.

[0386] 808. The second CU sends fifth indication information to the first CU. Correspondingly, the first CU receives the fifth indication information from the second CU.

[0387] The fifth indication information is used to instruct the second DU to send the first cell status information. Optionally, the fifth indication information is used to instruct the second DU to send the configuration information of the first cell.

[0388] Optionally, the fifth indication information is carried in the NR-RAN configuration update request response.

[0389] Optionally, if the embodiment shown in FIG. 8 further includes steps 804 to 806 , steps 807 to 808 may be performed after step 806 .

[0390] Optionally, the embodiment shown in FIG8 further includes step 809. Step 809 may be performed after step 808.

[0391] 809. The first CU sends ninth indication information to the first DU. Correspondingly, the first DU receives the ninth indication information from the first CU.

[0392] The ninth indication information is used to instruct the second DU to send the first cell status information. Optionally, the ninth indication information is used to instruct the second DU to send the configuration information of the first cell.

[0393] Optionally, the ninth indication information is carried in the gNB-DU configuration update confirm message.

[0394] The following describes some possible execution operations of the first CU, the second CU, the first DU, and the second DU in some possible scenarios.

[0395] Scenario 1: If the cell state of the first cell is not broadcasting the SIB1 of the first cell, and the cell state of the first cell is updated, the embodiment shown in FIG8 optionally further includes steps 810 to 812. Steps 810 to 812 may be performed after step 803.

[0396] 810. The first CU sends second cell state information to the second CU. Correspondingly, the second CU receives the second cell state information from the first CU.

[0397] For the second cell status information, please refer to the relevant introduction in the embodiment shown in Figure 5 above, which will not be repeated here. Optionally, the second cell status information is carried in the NR-RAN configuration update request.

[0398] Optionally, if the embodiment shown in FIG. 8 further includes steps 804 to 809 , steps 810 to 812 may be performed after step 809 .

[0399] Optionally, the embodiment shown in FIG8 further includes step 810a. Step 810a may be performed before step 810.

[0400] 810a: The first DU sends second cell status information to the first CU. Correspondingly, the first CU receives the second cell status information from the first DU.

[0401] Optionally, the second cell state information is carried in the gNB-DU configuration update message.

[0402] Specifically, after the first DU receives the first WUS from the terminal device, or the first CU receives the first request from the terminal device, the first CU instructs the first DU to start broadcasting the SIB1 of the first cell. The first DU may start broadcasting the SIB1 of the first cell. The first DU may send the second cell status information to the first CU, thereby informing the first cell to start broadcasting SIB1.

[0403] 811. The second CU sends second cell status information to the second DU. Correspondingly, the second DU receives the second cell status information from the second CU.

[0404] The secondary cell status information is carried in the gNB-CU Configuration Update message.

[0405] 812. The second DU stops sending the first cell status information.

[0406] Optionally, the above step 812 may be replaced by describing as: the second DU does not send the first cell status information.

[0407] Specifically, after the second DU receives the second cell status information, the second DU does not send the first cell status information. Further, the second DU does not send the configuration information of the first cell.

[0408] Optionally, the embodiment shown in FIG8 further includes steps 813 and 814. Steps 813 and 814 may be performed before step 812.

[0409] 813. The second DU sends tenth indication information to the second CU. Correspondingly, the second CU receives the tenth indication information from the second DU.

[0410] The tenth indication information is used to instruct the second DU to stop sending or not send the first cell state information. Further, optionally, the tenth indication information is used to instruct the second DU to stop sending or not send the configuration information of the first cell.

[0411] Optionally, the tenth indication information is carried in the gNB-CU configuration update confirmation message.

[0412] 814. The second CU sends sixth indication information to the first CU. Correspondingly, the first CU receives the sixth indication information from the second CU.

[0413] The sixth indication information is used to instruct the second DU to stop sending or not send the first cell state information. Further, optionally, the sixth indication information is used to instruct the second DU to stop sending or not send the configuration information of the first cell.

[0414] Optionally, the sixth indication information is carried in the NR-RAN configuration update request response.

[0415] Optionally, the embodiment shown in FIG8 further includes step 815 , which may be performed after step 814 .

[0416] 815. The first CU sends eleventh indication information to the first DU. Correspondingly, the first DU receives the eleventh indication information from the first CU.

[0417] The eleventh indication information is used to instruct the second DU to stop sending or not send the first cell state information. Further, optionally, the eleventh indication information is used to instruct the second DU to stop sending or not send the configuration information of the first cell.

[0418] Optionally, the eleventh indication information is carried in the gNB-DU Configuration Update Confirm message.

[0419] Scenario 2: If the second DU does not send the first cell status information for some reason, for example, the third cell is overloaded, or a large number of terminal devices need to access the first cell due to reasons such as cell switching, or the second DU receives the third WUS from the terminal device, the third WUS is used to trigger the second DU to instruct the first DU to send the SIB1 of the first cell, or the second CU receives a third request from the terminal device, the third request is used to request the second DU to instruct the first DU to send the SIB1 of the first cell, and the second CU sends an indication to the second DU to instruct the first DU to send the SIB1 of the first cell. Optionally, the embodiment shown in Figure 8 also includes steps 816 to 819. Steps 816 to 819 can be performed after step 803.

[0420] 816. The second DU sends second indication information to the second CU. Correspondingly, the second CU receives the second indication information from the second DU.

[0421] The second indication information is used to indicate sending the SIB1 of the first cell.

[0422] Optionally, the second indication information is carried in the gNB-DU configuration update confirmation message.

[0423] 817. The second CU sends second indication information to the first CU. Correspondingly, the first CU receives the second indication information from the second CU.

[0424] Optionally, the second indication information is carried in the NR-RAN configuration update request response.

[0425] 818. The first CU sends second indication information to the first DU. Correspondingly, the first DU receives the second indication information from the first CU.

[0426] Optionally, the second indication information is carried in the gNB-CU configuration update confirmation message.

[0427] 819. The first DU sends SIB1 of the first cell.

[0428] Optionally, after the first DU receives the second indication information, the first DU starts sending the SIB1 of the first cell. Alternatively, after the first DU receives the second indication information for a preset period of time, the first DU starts sending the SIB1 of the first cell. That is, the first DU changes from a state of not sending the SIB1 of the first cell to a state of sending the SIB1 of the first cell.

[0429] Optionally, the embodiment shown in FIG8 further includes steps 820 to 822 , and steps 820 to 822 may be performed after step 819 .

[0430] 820. The first DU sends twelfth indication information to the first CU. Correspondingly, the first CU receives the twelfth indication information from the first DU.

[0431] The twelfth indication information is used to instruct the first DU to transmit the SIB1 of the first cell. Optionally, the twelfth indication information is carried in the gNB-DU Configuration Update Confirm message.

[0432] 821. The first CU sends seventh indication information to the second CU. Correspondingly, the second CU receives the seventh indication information from the first CU.

[0433] The seventh indication information is used to instruct the first DU to send the SIB1 of the first cell. Optionally, the seventh indication information is carried in the NR-RAN configuration update request response.

[0434] 822. The second CU sends thirteenth indication information to the second DU. Correspondingly, the second DU receives the thirteenth indication information from the second CU.

[0435] The thirteenth indication information is used to instruct the first DU to send the SIB1 of the first cell. Optionally, the thirteenth indication information is carried in the NR-RAN configuration update request response.

[0436] Optionally, in a separate architecture of CU and DU, the terminal device can be used to execute the embodiment shown in FIG7A above, and the second device should be replaced by the second DU. In a separate architecture of CU and DU, the terminal device can be used to execute the embodiment shown in FIG7B above, and the first device should be replaced by the first DU.

[0437] Optionally, under the separation architecture of CU and DU, the present application also provides another embodiment, which includes: the terminal device sends a first WUS to the first DU, and the first WUS is used to trigger the first DU to send the SIB1 of the first cell; the terminal device receives the SIB1 of the first cell from the first DU.

[0438] Optionally, under the separation architecture of CU and DU, the present application also provides another embodiment, which includes: the terminal device sends a first request to the first CU, and the first request is used to request the SIB1 of the first cell; the first CU sends information to the first DU for instructing the first DU to send the SIB1 of the first cell; the first DU sends the SIB1 of the first cell, and accordingly, the terminal device receives the SIB1 of the first cell from the first DU.

[0439] Optionally, under the separation architecture of CU and DU, the present application also provides another embodiment, which includes: the terminal device sends a second WUS to the second DU, and the second WUS is used to trigger the second DU to send the SIB1 of the first cell; the terminal device receives the SIB1 of the first cell from the second DU.

[0440] Optionally, under a separate architecture of CU and DU, the present application also provides another embodiment, which includes: the terminal device sends a second request to the second CU, where the second request is used to request the SIB1 of the first cell; the second CU sends information to the second DU for instructing the second DU to send the SIB1 of the first cell. The second DU sends the SIB1 of the first cell, and accordingly, the terminal device receives the SIB1 of the first cell from the second DU.

[0441] Optionally, under the separation architecture of CU and DU, the present application also provides another embodiment, which includes: the terminal device sends a third WUS to the second DU, and the third WUS is used to trigger the second DU to send the SIB1 of the first cell; the second DU sends information to the second CU for instructing the first DU to send the SIB1 of the first cell; the second CU sends information to the first CU for instructing the first DU to send the SIB1 of the first cell; the first CU sends information to the first DU for instructing the first DU to send the SIB1 of the first cell; the first DU sends the SIB1 of the first cell, and accordingly, the terminal device receives the SIB1 of the first cell from the first DU.

[0442] Optionally, under the separation architecture of CU and DU, the present application also provides another embodiment, which includes: the terminal device sends a third request to the second CU, and the third request is used to request the SIB1 of the first cell; the second CU sends information to the first CU for instructing the first DU to send the SIB1 of the first cell; the first CU sends information to the first DU for instructing the first DU to send the SIB1 of the first cell; the first DU sends the SIB1 of the first cell, and accordingly, the terminal device receives the SIB1 of the first cell from the first DU.

[0443] In this application, the third cell is an assisting cell or a secondary cell of the first cell. Two possible implementations of the first device determining that the third cell is an assisting cell of the first cell are described below in conjunction with the embodiment shown in FIG9 and the embodiment shown in FIG10 .

[0444] FIG9 is a schematic diagram of another embodiment of the indication method of the present application. Referring to FIG9 , the method includes:

[0445] 901. A first device sends a fourth request to a second device. Correspondingly, the second device receives the fourth request from the first device.

[0446] The fourth request is used to request the third cell to serve as an assisting cell or a secondary cell of the first cell.

[0447] Optionally, the fourth request further includes the behavior of the second device when the third cell serves as an assisting cell. For example, the behavior of the second device when the third cell serves as an assisting cell includes: helping to broadcast the cell status of the first cell, sending WUS configuration, and / or SIB1 of the first cell.

[0448] Optionally, the embodiment shown in FIG9 further includes step 901a. Step 901a may be performed before step 901.

[0449] 901a: The network management device sends first information to the first device and the second device. Correspondingly, the first device and the second device respectively receive the first information from the network management device.

[0450] The first information is used to configure the third cell as an assisting cell. That is, the network management device configures the third cell as an assisting cell. The first device can select the third cell as an assisting cell of the first cell.

[0451] It should be noted that the network management device may send the first information to the first device and the second device at the same time, or may not send the first information to the first device and the second device at the same time, and this application does not make any specific limitation.

[0452] It should be noted that the above step 901a introduces the technical solution of this application by taking the example of the network management device configuring the third cell as an assisting cell. In actual applications, the network management device can configure multiple cells as assisting cells, and the first device can select one cell from multiple cells as an assisting cell for the first cell. This application does not make any specific limitations.

[0453] Optionally, the network management device is an OAM network element.

[0454] 902. The second device sends a first response to the first device. Correspondingly, the first device receives the first response from the second device.

[0455] The first response is used to confirm that the third cell serves as an assisting cell for the first cell. Optionally, the second device determines whether to use the third cell as an assisting cell for the first cell based on the load of the third cell. For example, when the load of the third cell is below a certain threshold, the second device may reply with information indicating that the third cell serves as an assisting cell for the first cell.

[0456] It should be noted that the above description of the technical solution of this application uses an example in which the first response is used to confirm that the third cell serves as an assisting cell for the first cell. In actual applications, if the second device confirms that the third cell is not serving as an assisting cell for the first cell, the first response is used to indicate that the third cell is not serving as an assisting cell for the first cell. For example, when the load of the third cell exceeds a certain threshold, the second device may provide feedback to the first device indicating that the third cell is not serving as an assisting cell for the first cell.

[0457] It should be noted that the embodiment shown in Figure 9 can be implemented independently or in combination with the aforementioned method embodiments. For example, the embodiment shown in Figure 9 can be implemented before the embodiment shown in Figure 5, and then the embodiment shown in Figure 5 can be implemented.

[0458] In one possible implementation, in a separate architecture of CU and DU, in the embodiment shown in FIG9 , the first device can be replaced by a first DU, and the second device can be replaced by a second DU. This implementation can be implemented independently or in combination with the aforementioned method embodiments. For example, the embodiment shown in FIG9 can be executed before the embodiment shown in FIG8 , and then the embodiment shown in FIG8 can be executed again.

[0459] In another possible implementation, under the separation architecture of CU and DU, in the embodiment shown in Figure 9 above, the first device can be replaced by the first CU, and the second device can be replaced by the second CU. In this implementation, after the above step 902, the first CU sends information to the first DU to indicate that the third cell is an assisting cell of the first cell, and the second CU sends information to the second DU to indicate that the third cell is an assisting cell of the first cell. This implementation can be implemented alone or in combination with the aforementioned method embodiment. For example, the embodiment shown in Figure 9 can be executed before the embodiment shown in Figure 8, and then the embodiment shown in Figure 8 is executed.

[0460] FIG10 is a schematic diagram of another embodiment of the indication method of the present application. Referring to FIG10 , the method includes:

[0461] 1001. A network management device sends second information to a first device and a second device. Correspondingly, the first device and the second device respectively receive the second information from the network management device.

[0462] The second information is used to configure the third cell as an auxiliary cell of the first cell. The network management device configures the third cell as an auxiliary cell of the first cell. Optionally, the network management device is an OAM network element.

[0463] It should be noted that the embodiment shown in Figure 10 can be implemented independently or in combination with the aforementioned method embodiments. For example, the embodiment shown in Figure 10 can be implemented before the embodiment shown in Figure 5, and then the embodiment shown in Figure 5 can be implemented.

[0464] In one possible implementation, in a separate architecture of CU and DU, in the embodiment shown in FIG10 above, the first device can be replaced by a first DU, and the second device can be replaced by a second DU. This implementation can be implemented independently or in combination with the aforementioned method embodiments. For example, the embodiment shown in FIG10 can be executed before the embodiment shown in FIG8 , and then the embodiment shown in FIG8 can be executed again.

[0465] In another possible implementation, under the separation architecture of CU and DU, in the embodiment shown in Figure 10 above, the first device can be replaced by the first CU, and the second device can be replaced by the second CU. In this implementation, after the above step 1001, the first CU sends information to the first DU for indicating that the third cell is an assisting cell of the first cell, and the second CU sends information to the second DU for indicating that the third cell is an assisting cell of the first cell. This implementation can be implemented alone or in combination with the aforementioned method embodiment. For example, the embodiment shown in Figure 10 can be executed before the embodiment shown in Figure 8, and then the embodiment shown in Figure 8 is executed.

[0466] The device provided by this application is introduced below.

[0467] FIG11 is a schematic diagram of the structure of a device provided in an embodiment of the present application. Referring to FIG11 , the device 1100 includes a transceiver module 1101 and a processing module 1102 .

[0468] The processing module 1102 is used for data processing. The transceiver module 1101 is used for implementing corresponding communication functions.

[0469] Optionally, the transceiver module 1101 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiment. The receiving module is used to perform the receiving operation in the above method embodiment.

[0470] It should be noted that the apparatus 1100 may include a sending module but not a receiving module. Alternatively, the apparatus 1100 may include a receiving module but not a sending module. This may depend on whether the above solution executed by the apparatus 1100 includes both a sending action and a receiving action.

[0471] Optionally, the apparatus 1100 may further include a storage module, which may be used to store instructions and / or data. The processing module 1102 may read the instructions and / or data in the storage module so that the apparatus 1100 implements the aforementioned method embodiment.

[0472] In one possible implementation, the device 1100 is a first device, or a component (e.g., a chip), module, or unit within the first device. The device 1100 can be used to execute all or part of the steps executed by the first device in the embodiments shown in Figures 5, 7B, 7C, 7E, 9, and 10. The device 1100 can be used to execute all or part of the steps executed by the first CU in the embodiment shown in Figure 8. For details, please refer to the relevant descriptions in the embodiments shown in Figures 5, 8, and 10. The device 1100 can be used to execute the actions performed by the first device or the first CU in the above embodiments. The processing module 1102 is used to perform processing-related operations on the first device or the first CU side in the above method embodiments. The transceiver module 1101 is used to perform reception-related operations on the first device or the first CU side in the above method embodiments. For details, please refer to the relevant descriptions in the embodiments shown in Figures 5, 7B, 7C, 7E, 8, and 10.

[0473] In another possible implementation, the device 1100 is a terminal device, or a component (e.g., a chip), module, or unit within the terminal device. The device 1100 can be used to execute all or part of the steps executed by the terminal device in the embodiments shown in Figures 7A, 7B, 7C, and 7E. For details, please refer to the relevant descriptions in the embodiments shown in Figures 7A, 7B, 7C, and 7E. The device 1100 can be used to execute the actions performed by the terminal device in the above embodiments. The processing module 1102 is used to execute the processing-related operations on the terminal device side in the above method embodiments. The transceiver module 1101 is used to execute the reception-related operations on the terminal device side in the above method embodiments. For details, please refer to the relevant descriptions in the embodiments shown in Figures 7A to 7E.

[0474] In another possible implementation, the device 1100 is a first DU, or a component (for example, a chip), module or unit within the first DU. The device 1100 can be used to execute all or part of the steps executed by the first DU in the embodiment shown in Figure 8. For details, please refer to the relevant description in the embodiment shown in Figure 8 above. The device 1100 can be used to execute the actions performed by the first DU in the above embodiment. The processing module 1102 is used to perform processing-related operations on the first DU side in the above method embodiment. The transceiver module 1101 is used to perform reception-related operations on the first DU side in the above method embodiment. For details, please refer to the relevant description in the embodiment shown in Figure 8 above.

[0475] It should be understood that the specific process of each module executing the above corresponding process has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0476] The processing module 1102 in the above embodiment can be implemented by at least one processor or processor-related circuits. The transceiver module 1101 can be implemented by a transceiver or transceiver-related circuits. The transceiver module 1101 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.

[0477] FIG12 is another schematic diagram of the structure of the device provided in an embodiment of the present application. Referring to FIG12 , the device 1200 includes a transceiver module 1201. Optionally, the device 1200 also includes a processing module 1202.

[0478] The processing module 1202 is used for data processing. The transceiver module 1201 is used for implementing corresponding communication functions.

[0479] Optionally, the transceiver module 1201 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiment. The receiving module is used to perform the receiving operation in the above method embodiment.

[0480] It should be noted that the apparatus 1200 may include a sending module but not a receiving module. Alternatively, the apparatus 1200 may include a receiving module but not a sending module. This may depend on whether the above solution executed by the apparatus 1200 includes both a sending action and a receiving action.

[0481] Optionally, the apparatus 1200 may further include a storage module, which may be used to store instructions and / or data. The processing module 1202 may read the instructions and / or data in the storage module so that the apparatus 1200 implements the aforementioned method embodiment.

[0482] In one possible implementation, the device 1200 is a second device, or a component (e.g., a chip), module, or unit within the second device. The device 1200 can be used to execute all or part of the steps executed by the second device in the embodiments shown in Figures 5, 7A, 7D, 7E, 9, and 10. The device 1200 can be used to execute all or part of the steps executed by the second CU in the embodiment shown in Figure 8. For details, please refer to the relevant descriptions in the embodiments shown in Figures 5, 7A, 7D, 7E, 8 to 10. The device 1200 can be used to execute the actions performed by the second device or second CU in the above embodiments. The processing module 1202 is used to perform processing-related operations on the second device or second CU side in the above method embodiments. The transceiver module 1201 is used to perform reception-related operations on the second device or second CU side in the above method embodiments. For details, please refer to the relevant introductions in the embodiments shown in Figures 5, 7A, 7D, 7E, 8 to 10.

[0483] In another possible implementation, the device 1200 is a second DU, or a component (e.g., a chip), module, or unit within the second DU. The device 1200 can be used to execute all or part of the steps executed by the second DU in the embodiment shown in FIG8 . The device 1200 can be used to execute all or part of the steps executed by the second DU in the embodiment shown in FIG8 . For details, please refer to the relevant description in the embodiment shown in FIG8 . The device 1200 can be used to execute the actions executed by the second DU in the above embodiment. The processing module 1202 is used to execute the processing-related operations on the second DU side in the above method embodiment. The transceiver module 1201 is used to execute the reception-related operations on the second DU side in the above method embodiment. For details, please refer to the relevant introduction in the embodiment shown in FIG8 .

[0484] It should be understood that the specific process of each module executing the above corresponding process has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0485] The processing module 1202 in the above embodiment can be implemented by at least one processor or processor-related circuits. The transceiver module 1201 can be implemented by a transceiver or transceiver-related circuits. The transceiver module 1201 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.

[0486] The present application also provides an apparatus. Figure 13 is another schematic diagram of the structure of the apparatus provided in the present application. Referring to Figure 13, apparatus 1300 may be a terminal device in the above-described method embodiment, or may be a component (e.g., a chip), module, or unit of the terminal device in the above-described method embodiment. Apparatus 1300 may be used to perform the operations performed by the terminal device in the above-described method embodiment.

[0487] The processor is mainly used to process data or signals, control the device, execute corresponding software programs, process data of software programs, etc.

[0488] It should be noted that the signal processing algorithm capability of this processor is relatively weak and cannot perform complex signal processing algorithms.

[0489] The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used to convert baseband signals into radio frequency signals and process radio frequency signals.

[0490] Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.

[0491] Optionally, the device 1300 also includes input and output devices, such as a touch screen, a display screen, a keyboard, etc., which are mainly used to receive data input by the user and output data to the user.

[0492] When data needs to be sent, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF circuit. The RF circuit then performs RF processing on the baseband signal and transmits it via the antenna as electromagnetic waves. When data is sent to the device, the RF circuit receives the RF signal via the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes it.

[0493] For ease of explanation, Figure 13 shows only one memory and processor. In an actual device product, one or more processors and one or more memories may exist. Memory may also be referred to as a storage medium or storage device. The memory may be provided independently of the processor or integrated with the processor, and this is not limited in the present embodiment.

[0494] In the embodiments of the present application, the antenna and RF circuit with transceiver functions can be considered the transceiver unit of the device, and the processor with processing functions can be considered the processing unit of the device. As shown in Figure 13, device 1300 includes a transceiver unit 1310 and a processing unit 1320. The transceiver unit can also be referred to as a transceiver, transceiver, or transceiver device. The processing unit can also be referred to as a processor, processing board, processing module, or processing device.

[0495] Alternatively, the device in the transceiver unit 1310 that implements the receiving function may be referred to as a receiving unit, and the device in the transceiver unit 1310 that implements the transmitting function may be referred to as a transmitting unit. That is, the transceiver unit 1310 includes a receiving unit and a transmitting unit. The transceiver unit may also be referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit. The transmitting unit may also be referred to as a transmitter, a transmitter, or a transmitting circuit.

[0496] It should be understood that the transceiver unit 1310 is used to perform the sending and receiving operations of the terminal device in the above method embodiment, and the processing unit 1320 is used to perform other operations except the sending and receiving operations on the terminal device in the above method embodiment.

[0497] When the device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit may be an input / output circuit or a communication interface; the processing unit may be a processor, microprocessor, integrated circuit, or logic circuit integrated on the chip. In the above method embodiment, the sending operation corresponds to the output of the input / output circuit, and the receiving operation corresponds to the input of the input / output circuit.

[0498] The present application also provides another device, and FIG14 is another structural diagram of the device provided in an embodiment of the present application. Referring to FIG14 , the device 1400 includes a processor 1401 .

[0499] Optionally, the device 1400 also includes a memory 1402.

[0500] Optionally, the device 1400 further includes a transceiver 1403 .

[0501] In a possible implementation, the processor 1401 , the memory 1402 , and the transceiver 1403 are connected via buses, and the memory 1402 stores computer instructions.

[0502] In one possible implementation, when device 1400 is a first device, the first device may be a first access network device, or a component in the first access network device (for example, a processor, a chip, or a chip system, etc.), or a logic module or software that can implement all or part of the functions of the first access network device, or a logic module or software that can implement all or part of the functions of the first access network device. Device 1400 can be used to execute the steps performed by the first device in the above method embodiment. For details, please refer to the relevant description in the above method embodiment.

[0503] In this implementation, the processing module 1102 in the embodiment shown in FIG. 11 may be the processor 1401 , and the transceiver module 1101 in the embodiment shown in FIG. 11 may be the transceiver 1402 .

[0504] In another possible implementation, when device 1400 is a second device, the second device may be a second access network device, or a component in the second access network device (for example, a processor, a chip, or a chip system, etc.), or a logic module or software that can implement all or part of the functions of the second access network device, or a logic module or software that can implement all or part of the functions of the network device. Device 1400 can be used to execute the steps performed by the second device in the above method embodiment. For details, please refer to the relevant description in the above method embodiment.

[0505] In this implementation, the processing module 1202 in the embodiment shown in FIG. 12 may be the processor 1401 , and the transceiver module 1201 in the embodiment shown in FIG. 12 may be the transceiver 1402 .

[0506] In another possible implementation, when device 1400 is a first DU, or device 1400 is a component (for example, a chip), module or unit within the first DU, device 1400 can be used to execute the steps performed by the first DU in the above method embodiment. For details, please refer to the relevant description in the above method embodiment.

[0507] In this implementation, the processing module 1102 in the embodiment shown in FIG. 11 may be the processor 1401 , and the transceiver module 1101 in the embodiment shown in FIG. 11 may be the transceiver 1402 .

[0508] In another possible implementation, when device 1400 is a second DU, or device 1400 is a component (for example, a chip), module or unit within the second DU, device 1400 can be used to execute the steps performed by the second DU in the above method embodiment. For details, please refer to the relevant description in the above method embodiment.

[0509] In this implementation, the processing module 1102 in the embodiment shown in FIG. 11 may be the processor 1401 , and the transceiver module 1101 in the embodiment shown in FIG. 11 may be the transceiver 1402 .

[0510] The present application also provides a communication system, comprising a first device and a second device. The first device is configured to execute all or part of the steps of the first device in the above method embodiment. The second device is configured to execute all or part of the steps of the second device in the above method embodiment.

[0511] Optionally, the communication system further includes a terminal device, and the terminal device is used to execute all or part of the steps executed by the terminal device in the above method embodiment.

[0512] The present application also provides a communication system, which includes a first CU, a first DU, a second CU, and a second DU. The first CU is used to execute all or part of the steps of the first CU in the above-mentioned method embodiment. The first DU is used to execute all or part of the steps of the first DU in the above-mentioned method embodiment. The second CU is used to execute all or part of the steps of the second CU in the above-mentioned method embodiment. The second DU is used to execute all or part of the steps of the second DU in the above-mentioned method embodiment. Optionally, the communication system also includes a terminal device, which is used to execute all or part of the steps executed by the terminal device in the above-mentioned method embodiment.

[0513] An embodiment of the present application further provides a computer program product including computer instructions, which, when executed on a computer, enables the computer to execute the methods of the embodiments shown in FIG. 5 and FIG. 7A to FIG. 10 .

[0514] An embodiment of the present application further provides a computer-readable storage medium including computer instructions. When the computer instructions are executed on a computer, the computer executes the method of the embodiment shown in FIG. 5 and FIG. 7A to FIG. 10 .

[0515] An embodiment of the present application also provides a chip device, including a processor, for calling a computer program or computer instruction stored in a memory so that the processor executes the method of the embodiment shown in Figures 5 and 7A to 10 above.

[0516] Optionally, the processor is coupled to the memory via an interface.

[0517] Optionally, the chip device further includes a memory, in which a computer program or computer instructions are stored.

[0518] The processor mentioned in any of the above may be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the method of the embodiments shown in Figures 5 and 7A to 10. The memory mentioned in any of the above may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), etc.

[0519] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0520] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0521] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0522] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.

[0523] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of indicating, characterized in that: The method comprises: determining first cell state information, where the first cell state information is used to indicate a cell state of a first cell, where the cell state of the first cell is broadcasting or not broadcasting a system information block SIB1 of the first cell, and the first cell is a cell of a first device; The first cell status information is sent to a second device.

2. The method according to claim 1, characterized in that The first device is a first centralized unit CU, and the second device is a second centralized unit CU; and the determining of the first cell state information includes: The first cell state information is received from a first distributed unit DU.

3. The method according to claim 2, characterized in that Before receiving the first cell state information from the first DU, the method further includes: First indication information is sent to the first DU, where the first indication information is used to instruct the first DU to determine whether to broadcast the SIB1 of the first cell, or the first indication information is used to indicate whether to broadcast the SIB1 of the first cell.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Send configuration information of the first cell to the second device.

5. The method according to claim 4, characterized in that The first device is a first centralized unit CU, and the second device is a second centralized unit CU; before sending the configuration information of the first cell to the second device, the method further includes: Receive configuration information of the first cell from a first DU.

6. The method according to any one of claims 1 to 5, characterized in that The cell status of the first cell is not broadcasting SIB1 of the first cell; the method further includes: Sending second cell status information to the second device, where the second cell status information is used to indicate an updated cell status of the first cell, where the updated cell status is broadcasting SIB1 of the first cell, or the second cell status information is used to instruct the second device to stop sending the first cell status information.

7. The method according to claim 6, characterized in that The first device is a first CU, and the second device is a second CU; before sending the second cell state information to the second device, the method further includes: The second cell state information is received from the first DU.

8. The method according to any one of claims 1 to 5, characterized in that The method further comprises: receiving second indication information from the second device, where the second indication information is used to instruct sending SIB1 of the first cell; Send SIB1 of the first cell.

9. The method according to any one of claims 1 to 5, characterized in that The first device is a first CU, and the second device is a second CU; the method further includes: receiving second indication information from the second CU, where the second indication information is used to instruct sending SIB1 of the first cell; Send the second indication information to the first DU.

10. A method of indicating, characterized in that: The method comprises: receiving first cell state information from a first device, where the first cell state information is used to indicate a cell state of a first cell, where the cell state of the first cell is broadcasting or not broadcasting a system information block SIB1 of the first cell, and the first cell is a cell of the first device; Send the first cell status information.

11. The method according to claim 10, characterized in that The sending the first cell state information includes: If the cell status of the first cell is not broadcasting the SIB1 of the first cell, the first cell status information is sent.

12. The method according to claim 10 or 11, characterized in that The first cell state information is further used to indicate a cell state of a second cell, where the cell state of the second cell is broadcasting or not broadcasting SIB1 of the second cell, and the second cell is a cell of the first device; and the sending of the first cell state information includes: If the cell status of at least one of the first cell and the second cell is that the SIB1 of the at least one cell is not broadcast, the first cell status information is sent.

13. The method according to any one of claims 10 to 12, characterized in that The first cell status information is carried in a system information block or a physical channel of the third cell.

14. The method according to any one of claims 10 to 13, characterized in that The first device is a first centralized unit CU, and the second device is a second centralized unit CU; and the sending of the first cell state information includes: The first cell status information is sent to a second distributed unit DU.

15. The method according to any one of claims 10 to 14, characterized in that The method further comprises: receiving configuration information of the first cell from the first device; Send configuration information of the first cell.

16. The method according to claim 15, characterized in that The first device is a first centralized unit CU, and the second device is a second centralized unit CU; and the sending of the configuration information of the first cell includes: Send configuration information of the first cell to the second DU.

17. The method according to any one of claims 10 to 16, characterized in that The cell status of the first cell is not broadcasting SIB1 of the first cell; the method further includes: receiving second cell status information from the first device, where the second cell status information is used to indicate an updated cell status of the first cell, where the updated cell status is broadcasting SIB1 of the first cell, or the second cell status information is used to instruct to stop sending the first cell status information; Stop sending the first cell status information.

18. The method according to any one of claims 10 to 16, characterized in that The first device is a first CU, and the second device is a second CU; the method further includes: receiving second cell state information from the first CU, where the second cell state information is used to indicate an updated cell state of the first cell, where the updated cell state is broadcasting SIB1 of the first cell, or the second cell state information is used to instruct to stop sending the first cell state information; Send the second cell status information to the second DU.

19. The method according to any one of claims 10 to 16, characterized in that The method further comprises: Second indication information is sent to the first device, where the second indication information is used to instruct the first device to send SIB1 of the first cell.

20. The method according to any one of claims 10 to 16, characterized in that The first device is a first CU, and the second device is a second CU; the method further includes: Second indication information is sent to the first CU, where the second indication information is used to instruct the first DU to send SIB1 of the first cell.

21. A method of indicating, characterized in that: The method comprises: receiving first cell state information from a second device, where the first cell state information is used to indicate a cell state of a first cell, where the cell state of the first cell is broadcasting or not broadcasting a system information block SIB1 of the first cell, and the first cell is a cell of the first device; determining a method for acquiring SIB1 of the first cell according to the first cell state information; The SIB1 of the first cell is obtained according to the SIB1 method of the first cell.

22. The method according to claim 21, characterized in that If the cell state of the first cell is broadcasting the SIB1 of the first cell, the method of obtaining the SIB1 of the first cell includes: Receive SIB1 of the first cell from the first device.

23. The method according to claim 21, characterized in that If the cell status of the first cell is not broadcasting the SIB1 of the first cell, the method of obtaining the SIB1 of the first cell includes: Sending a first wake-up signal WUS or a first request to the first device, where the first WUS is used to trigger the first device to send the SIB1 of the first cell, and the first request is used to request the SIB1 of the first cell; Receive SIB1 of the first cell from the first device.

24. The method according to claim 23, wherein The method further comprises: receiving configuration information of the first cell from the second device, the configuration information including configuration for sending the first WUS; The sending the first WUS to the first device includes: The first WUS is sent to the first device through the configuration of sending the first WUS.

25. The method according to claim 24, characterized in that The configuration information further includes a condition for triggering the sending of the first WUS; and the sending of the first WUS to the first device through the configuration of sending the first WUS includes: When the condition for triggering the sending of the first WUS is met, the first WUS is sent to the first device through the configuration of sending the first WUS.

26. The method according to claim 21, characterized in that If the cell status of the first cell is not broadcasting the SIB1 of the first cell, the method of obtaining the SIB1 of the first cell includes: Receive SIB1 of the first cell from the second device.

27. The method according to claim 26, characterized in that Before receiving the SIB1 of the first cell from the second device, the method further includes: A second WUS or a second request is sent to the second device, where the second WUS is used to trigger the second device to send the SIB1 of the first cell, and the second request is used to request the second device to send the SIB1 of the first cell.

28. A communication device, characterized in that: The communication device includes a transceiver module and a processing module; The transceiver module is used to perform the transceiver operation of the method according to any one of claims 1 to 9, and the processing module is used to perform the processing operation of the method according to any one of claims 1 to 9; or, The transceiver module is used to perform the transceiver operation of the method according to any one of claims 21 to 27, and the processing module is used to perform the processing operation of the method according to any one of claims 21 to 27.

29. A communication device, characterized in that: The communication device includes a transceiver module, and the transceiver module is used to perform the transceiver operation of the method according to any one of claims 10 to 20.

30. The communication device according to claim 29, wherein: The communication device further comprises a processing module, configured to execute the processing operation of the method according to any one of claims 10 to 20.

31. A communication device, characterized in that: The communication device includes a processor configured to execute a computer program or computer instructions in a memory to perform the method according to any one of claims 1 to 9, or to perform the method according to any one of claims 10 to 20, or to perform the method according to any one of claims 21 to 27.

32. The device according to claim 31, characterized in that The device further includes a transceiver, and the processor and the transceiver are connected to each other via a line.

33. A computer-readable storage medium, characterized in that A computer program is stored thereon, and when the computer program is executed by the device, the device performs the method according to any one of claims 1 to 9, or the device performs the method according to any one of claims 10 to 20, or the device performs the method according to any one of claims 21 to 27.

Images