Communication method and device

Abstract

A communication method and apparatus, applied to the technical field of communications, the method comprising: a first apparatus receiving first information of a first network device, the first information being used for indicating a first parameter and / or a second parameter; the first parameter is used for compensating receiving power of all or part of first signals of a first cell where the first node is located, or compensating receiving quality and / or signal-to-noise ratio of all or part of second signals of the first cell where the first node is located; the second parameter is used for compensating receiving power of all or part of first signals of a second cell where the second node is located, or compensating receiving quality and / or signal-to-noise ratio of all or part of the first signals of the second cell where the second node is located; transmission among the first node, the second node and the first device only includes uplink transmission. According to the invention, cell reselection and / or cell switching under the scene that the network equipment deploys the UL Only node can be realized, and the uplink coverage can be improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] In mobile communication systems, terminal devices located at the cell edge suffer from significant path loss and are limited by their uplink transmission power, resulting in impaired communication performance. In one communication scenario, a node can be deployed between the network device and the terminal device that performs uplink transmission but not downlink transmission; this node can be called an uplink-only (UL Only) node. Specifically, the UL Only node is connected to the network device, allowing uplink data from the terminal device to be transmitted to this UL Only node and then forwarded to the network device. This improves uplink coverage and enhances the communication performance of terminal devices located at the cell edge.

[0003] Currently, both cell reselection and cell handover require terminal equipment to measure downlink signals. For example, in cell reselection, the terminal equipment needs to measure the received power of the synchronization signal and physical broadcast channel block (SSB). Similarly, in cell handover, the terminal equipment needs to measure the received quality and / or signal-to-noise ratio of the channel state information-reference signal (CSI-RS). In these communication scenarios, UL-only nodes can effectively improve uplink coverage, but since they only perform uplink transmission and not downlink transmission, they cannot send downlink signals to the terminal equipment, rendering current cell reselection and handover methods inapplicable. Therefore, how to implement cell reselection and / or cell handover in these communication scenarios is a problem that needs to be solved. Summary of the Invention

[0004] This application provides a communication method and apparatus for implementing cell reselection and / or cell handover in scenarios where network devices deploy UL Only nodes, which is beneficial for improving uplink coverage.

[0005] Firstly, this application provides a communication method, which can be executed by a first device. For example, the first device can be a terminal device itself, or it can be a device within the terminal device. Exemplarily, a device within the terminal device can refer to a component within the terminal device (e.g., a processor, chip, or chip system), or it can refer to a logic module or software capable of implementing all or part of the functions of the terminal device.

[0006] Taking the first device as a terminal device as an example, the method may include: the terminal device receiving first information from a first network device, the first information being used to indicate a first parameter and / or indicate a second parameter; wherein, the first parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located, compensating for the received quality of all or part of the second signal in the first cell where the first node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located; the second parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located; wherein, the transmission between the first node and the terminal device only includes uplink transmission, and the transmission between the second node and the terminal device only includes uplink transmission.

[0007] Optionally, the first signal can be an SSB, or other downlink signal, without limitation. Optionally, the second signal can be a CSI-RS, or other downlink signal, without limitation.

[0008] Optionally, the first parameter is used to compensate for all or part of the received power of the first signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the received power of the first signal in the second network device connected to the first node. The first parameter is used to compensate for all or part of the received quality of the second signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the received quality of the second signal in the second network device connected to the first node. The first parameter is used to compensate for the signal-to-noise ratio (SNR) of the second signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the SNR of the second signal in the second network device connected to the first node.

[0009] Optionally, the second parameter is used to compensate for all or part of the received power of the first signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the received power of the first signal in the third network device connected to the second node. The second parameter is used to compensate for all or part of the received quality of the second signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the received quality of the second signal in the third network device connected to the second node. The second parameter is used to compensate for the signal-to-noise ratio (SNR) of the second signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the SNR of the second signal in the third network device connected to the second node.

[0010] Optionally, both the first and second nodes can be UL Only nodes.

[0011] In this application, a first node is deployed in the first cell (or the network equipment corresponding to the first cell is deployed with a first node). The transmission between the first node and the terminal equipment only includes uplink transmission. A first parameter can be used to compensate for all or part of the received power of the first signal in the first cell. Thus, even if the first node cannot send the first signal to the terminal equipment, the terminal equipment can still use the first parameter to compensate for the received power of the first signal in the first cell, ensuring the uplink coverage advantage gained by the first cell due to the deployment of the first node. This enables cell reselection in scenarios where the network equipment deploys UL Only nodes, which is beneficial for improving uplink coverage. Similarly, the first parameter can be used to compensate for all or part of the received quality and / or signal-to-noise ratio of the second signal in the first cell. Thus, even if the first node cannot send the second signal to the terminal equipment, the terminal equipment can still use the first parameter to compensate for the received quality and / or signal-to-noise ratio of the second signal in the first cell, ensuring the uplink coverage advantage gained by the first cell due to the deployment of the first node. This enables cell handover in scenarios where the network equipment deploys UL Only nodes, which is beneficial for improving uplink coverage.

[0012] The second cell deploys a second node (or the network equipment corresponding to the second cell deploys a second node). The transmission between this second node and the terminal device only includes uplink transmission. A second parameter can be used to compensate for all or part of the received power of the first signal in the second cell. This way, even if the second node cannot send the first signal to the terminal device, the terminal device can still use the second parameter to compensate for the received power of the first signal in the second cell, ensuring the uplink coverage advantage gained by the second cell due to the deployment of the second node. This enables cell reselection in scenarios where network equipment deploys UL Only nodes, which is beneficial for improving uplink coverage. Similarly, the second parameter can be used to compensate for all or part of the received quality and / or signal-to-noise ratio of the second signal in the second cell. This way, even if the second node cannot send the second signal to the terminal device, the terminal device can still use the second parameter to compensate for the received quality and / or signal-to-noise ratio of the second signal in the second cell, ensuring the uplink coverage advantage gained by the second cell due to the deployment of the second node. This enables cell handover in scenarios where network equipment deploys UL Only nodes, which is beneficial for improving uplink coverage.

[0013] In one possible implementation, the first cell may be a cell corresponding to a second network device connected to the first node, wherein the second network device may be the first network device, or the second network device and the first network device may be different network devices; and / or, the second cell may be a cell corresponding to a third network device connected to the second node, wherein the third network device and the second network device may be different network devices.

[0014] The above implementation methods allow for the deployment of UL Only nodes only in the local cell, or UL Only nodes only in neighboring cells, or UL Only nodes in both the local cell and neighboring cells, making it suitable for different communication scenarios.

[0015] In one possible implementation, the first parameter may be associated with at least one of the following: the first cell, the first sequence, or the first resource; and / or, the second parameter may be associated with at least one of the following: the second cell, the second sequence, or the second resource.

[0016] For example, the first parameter associated with the first cell can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of part or all of the SSBs of the first cell, compensating for the received quality of part or all of the CSI-RS of the first cell, or compensating for the signal-to-noise ratio of part or all of the CSI-RS of the first cell. For example, the first parameter associated with the first sequence can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of the SSBs generated based on the first sequence, compensating for the received quality of the CSI-RS generated based on the first sequence, or compensating for the signal-to-noise ratio of the CSI-RS generated based on the first sequence. For example, the first parameter associated with the first resource can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of the SSBs carried by the first resource, compensating for the received quality of the CSI-RS carried by the first resource, or compensating for the signal-to-noise ratio of the CSI-RS carried by the first resource.

[0017] For example, the second parameter associated with the second cell can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of part or all of the SSBs of the second cell, compensating for the received quality of part or all of the CSI-RS of the second cell, or compensating for the signal-to-noise ratio of part or all of the CSI-RS of the second cell. For example, the second parameter associated with the second sequence can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of the SSBs generated based on the second sequence, compensating for the received quality of the CSI-RS generated based on the second sequence, or compensating for the signal-to-noise ratio of the CSI-RS generated based on the second sequence. For example, the second parameter associated with the second resource can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of the SSBs carried by the second resource, compensating for the received quality of the CSI-RS carried by the second resource, or compensating for the signal-to-noise ratio of the CSI-RS carried by the second resource.

[0018] Through the above implementation, the first parameter and / or the second parameter can be associated with at least one of the cell, sequence, or resource, making it applicable to a variety of communication scenarios.

[0019] In one possible implementation, the first signal may be an SSB, and the first parameter associated with the first cell may include: the first parameter being associated with a first SSB of the first cell, wherein the first SSB belongs to all or part of the first signal of the first cell where the first node is located; and / or, the second parameter being associated with the second cell may include: the second parameter being associated with a second SSB of the second cell, wherein the second SSB belongs to all or part of the first signal of the second cell where the second node is located.

[0020] The above implementation allows for the configuration of parameters for compensating SSB received power at the cell level or at the SSB level, making it suitable for various communication scenarios. Configuring parameters at the SSB level allows for differentiated configuration for different SSB beam directions, adapting to scenarios where the coverage area of ​​the UL Only node deployed by the network device is only a portion of the network device's coverage area, thus improving communication performance.

[0021] In one possible implementation, the second signal may be a CSI-RS, and the first parameter associated with the first cell may include: the first parameter being associated with a first CSI-RS of the first cell, wherein the first CSI-RS belongs to all or part of the second signals of the first cell where the first node is located; and / or, the second parameter being associated with the second cell may include: the second parameter being associated with a second CSI-RS of the second cell, wherein the second CSI-RS belongs to all or part of the second signals of the second cell where the second node is located.

[0022] Through the above implementation, the parameters used to compensate for the reception quality and / or signal-to-noise ratio of CSI-RS are configured at the cell level, or at the CSI-RS level, making them suitable for different communication scenarios. Configuring the parameters at the CSI-RS level allows for differentiated configuration for different CSI-RS beam directions, adapting to scenarios where the coverage area of ​​the UL Only node deployed by the network device is only a portion of the network device's coverage area, thus improving communication performance.

[0023] In one possible implementation, the terminal device may also perform cell reselection based on the first information; and / or, the terminal device may also perform cell handover based on the first information.

[0024] In one possible implementation, the first signal is an SSB, and the terminal device performs cell reselection based on the first information, which may include any of the following:

[0025] The first information is used to indicate the first parameter, which is used to compensate for the received power of all or part of the first signal in the first cell where the first node is located. The terminal device can receive the first SSB, which belongs to all or part of the first signal in the first cell where the first node is located. The cell to camp on is determined according to the received power after compensation of the first SSB, wherein the received power after compensation of the first SSB is determined by measuring the received power of the first SSB and the first parameter.

[0026] Alternatively, the first information is used to indicate the second parameter, which is used to compensate for the received power of all or part of the first signal in the second cell where the second node is located. The terminal device can receive the second SSB, which belongs to all or part of the first signal in the second cell where the second node is located. The cell to camp on is determined based on the received power after compensation by the second SSB, wherein the received power after compensation by the second SSB is determined by measuring the received power of the second SSB and the second parameter.

[0027] Alternatively, the first information is used to indicate the first parameter and the second parameter, the first parameter is used to compensate for all or part of the received power of the first signal in the first cell where the first node is located, and the second parameter is used to compensate for all or part of the received power of the first signal in the second cell where the second node is located. The terminal device can receive a first SSB and a second SSB, wherein the first SSB belongs to all or part of the first signal in the first cell where the first node is located, and the second SSB belongs to all or part of the first signal in the second cell where the second node is located. The cell to camp on is determined based on the received power after compensation by the first SSB and the received power after compensation by the second SSB, wherein the received power after compensation by the first SSB is determined by measuring the received power obtained by the first SSB and the first parameter, and the received power after compensation by the second SSB is determined by measuring the received power obtained by the second SSB and the second parameter.

[0028] Through the above implementation method, the terminal device can perform cell reselection for different deployment scenarios of UL Only nodes.

[0029] In one possible implementation, the first cell is the cell corresponding to the second network device, the second network device is the first network device, and the received power after the first SSB compensation is determined by the received power obtained by measuring the first SSB and the first parameter, which may include: the received power after the first SSB compensation is determined by the received power obtained by measuring the first SSB, the first parameter, and the first value.

[0030] Through the above implementation method, the received power of the SSB of this cell can be compensated not only for the first parameter but also for the first value. This way, when performing cell reselection, it can continue to camp in this cell as much as possible, reducing the impact on communication performance caused by reselecting other cells to perform access operations.

[0031] In one possible implementation, the received power obtained by measuring the first SSB can satisfy the first condition.

[0032] With the above implementation, when the terminal device performs cell reselection, it can, under certain conditions, consider using the first value to compensate for the SSB's received power in addition to considering the first parameter. This can ensure the communication performance of the cell and allow the device to continue camping in the cell as much as possible.

[0033] In one possible implementation, the second signal is CSI-RS, and the terminal device performs cell handover based on the first information, which may include any of the following:

[0034] The first information is used to indicate a first parameter, which is used to compensate for the reception quality of all or part of the second signal in the first cell where the first node is located. The terminal device can receive a first CSI-RS, which belongs to all or part of the second signal in the first cell where the first node is located. The terminal device sends the reception quality after the first CSI-RS compensation to the first network device, wherein the reception quality after the first CSI-RS compensation is determined by the reception quality obtained by measuring the first CSI-RS and the first parameter.

[0035] Alternatively, the first information is used to indicate a second parameter, which is used to compensate for the reception quality of all or part of the second signal in the second cell where the second node is located. The terminal device can receive a second CSI-RS, which belongs to all or part of the second signal in the second cell where the second node is located. The terminal device sends the reception quality after compensation for the second CSI-RS to the first network device, wherein the reception quality after compensation for the second CSI-RS is determined by the reception quality obtained by measuring the second CSI-RS and the second parameter.

[0036] Alternatively, the first information is used to indicate the first parameter and the second parameter, the first parameter being used to compensate for the reception quality of all or part of the second signal in the first cell where the first node is located, and the second parameter being used to compensate for the reception quality of all or part of the second signal in the second cell where the second node is located. The terminal device can receive a first CSI-RS and a second CSI-RS, wherein the first CSI-RS belongs to all or part of the second signal in the first cell where the first node is located, and the second CSI-RS belongs to all or part of the second signal in the second cell where the second node is located; and send the reception quality after compensation for the first CSI-RS and the reception quality after compensation for the second CSI-RS to the first network device, wherein the reception quality after compensation for the first CSI-RS is determined by the reception quality obtained by measuring the first CSI-RS and the first parameter, and the reception quality after compensation for the second CSI-RS is determined by the reception quality obtained by measuring the second CSI-RS and the second parameter.

[0037] Through the above implementation method, the terminal device can perform cell handover for different deployment scenarios of UL Only nodes.

[0038] In one possible implementation, the first cell is the cell corresponding to the second network device, the second network device is the first network device, and the reception quality after the first CSI-RS compensation is determined by the reception quality obtained by measuring the first CSI-RS and the first parameter, which may include: the reception quality after the first CSI-RS compensation is determined by the reception quality obtained by measuring the first CSI-RS, the first parameter, and the second value.

[0039] Through the above implementation, the reception quality of CSI-RS in this cell can be compensated not only for the first parameter but also for the second parameter. This allows the cell to continue camping as long as possible, reducing the impact of cell handover on communication performance.

[0040] In one possible implementation, the reception quality obtained by measuring the first CSI-RS can satisfy the second condition.

[0041] Through the above implementation, the terminal device can, under certain conditions, consider using a second value to compensate for the CSI-RS reception quality of the cell in addition to considering the first parameter. This can ensure the communication performance of the cell and allow the terminal device to continue camping in the cell as much as possible.

[0042] In one possible implementation, the second signal is CSI-RS, and the terminal device performs cell handover based on the first information, which may include any of the following:

[0043] The first information is used to indicate a first parameter, which is used to compensate for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located. The terminal device can receive a first CSI-RS, which belongs to all or part of the second signal in the first cell where the first node is located. The terminal device sends the signal-to-noise ratio after the first CSI-RS compensation to the first network device. The signal-to-noise ratio after the first CSI-RS compensation is determined by the signal-to-noise ratio obtained by measuring the first CSI-RS and the first parameter.

[0044] Alternatively, the first information is used to indicate the second parameter, which is used to compensate for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located. The terminal device can receive the second CSI-RS, which belongs to all or part of the second signal in the second cell where the second node is located; and send the signal-to-noise ratio after compensation of the second CSI-RS to the first network device, wherein the signal-to-noise ratio after compensation of the second CSI-RS is determined by measuring the signal-to-noise ratio of the second CSI-RS and the second parameter.

[0045] Alternatively, the first information is used to indicate the first parameter and the second parameter, the first parameter is used to compensate for the signal-to-noise ratio (SNR) of all or part of the second signal in the first cell where the first node is located, and the second parameter is used to compensate for the SNR of all or part of the second signal in the second cell where the second node is located. The terminal device can receive a first CSI-RS and a second CSI-RS, wherein the first CSI-RS belongs to all or part of the second signal in the first cell where the first node is located, and the second CSI-RS belongs to all or part of the second signal in the second cell where the second node is located; and send the SNR after compensation for the first CSI-RS and the SNR after compensation for the second CSI-RS to the first network device, wherein the SNR after compensation for the first CSI-RS is determined by the SNR obtained by measuring the first CSI-RS and the first parameter, and the SNR after compensation for the second CSI-RS is determined by the SNR obtained by measuring the second CSI-RS and the second parameter.

[0046] Through the above implementation method, the terminal device can perform cell handover for different deployment scenarios of UL Only nodes.

[0047] In one possible implementation, the first cell is the cell corresponding to the second network device, the second network device is the first network device, and the signal-to-noise ratio after the first CSI-RS compensation is determined by the signal-to-noise ratio obtained by measuring the first CSI-RS and the first parameter, which may include: the signal-to-noise ratio after the first CSI-RS compensation is determined by the signal-to-noise ratio obtained by measuring the first CSI-RS, the first parameter, and a third value.

[0048] Through the above implementation method, the signal-to-noise ratio of the CSI-RS in this cell can be compensated not only for the first parameter but also for the third parameter. This allows the cell to continue camping in this cell as much as possible, reducing the impact of cell handover on communication performance.

[0049] In one possible implementation, the signal-to-noise ratio obtained by measuring the first CSI-RS can satisfy the third condition.

[0050] Through the above implementation, the terminal device can, in addition to considering the first parameter to compensate for the signal-to-noise ratio of the CSI-RS of the cell, also consider using a third value to compensate for the signal-to-noise ratio of the CSI-RS of the cell. This can ensure the communication performance of the cell and allow the terminal device to continue camping in the cell as much as possible.

[0051] Secondly, this application provides a communication method that can be executed by a second device. For example, the second device can be the first network device itself, or it can be a device within the first network device. Exemplarily, a device within the first network device can refer to a component in the first network device (e.g., a processor, chip, or chip system), or it can refer to a logic module or software capable of implementing all or part of the functions of the first network device.

[0052] Taking the second device as the first network device as an example, the method may include: the first network device generating first information, the first information being used to indicate a first parameter and / or indicate a second parameter; wherein, the first parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located, compensating for the received quality of all or part of the second signal in the first cell where the first node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located; the second parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located; the transmission between the first node and the terminal device includes only uplink transmission, and the transmission between the second node and the terminal device includes only uplink transmission; sending the first information to the terminal device.

[0053] Optionally, the first signal can be an SSB, or other downlink signal, without limitation. Optionally, the second signal can be a CSI-RS, or other downlink signal, without limitation.

[0054] Optionally, the first parameter is used to compensate for all or part of the received power of the first signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the received power of the first signal in the second network device connected to the first node. The first parameter is used to compensate for all or part of the received quality of the second signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the received quality of the second signal in the second network device connected to the first node. The first parameter is used to compensate for the signal-to-noise ratio (SNR) of the second signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the SNR of the second signal in the second network device connected to the first node.

[0055] Optionally, the second parameter is used to compensate for all or part of the received power of the first signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the received power of the first signal in the third network device connected to the second node. The second parameter is used to compensate for all or part of the received quality of the second signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the received quality of the second signal in the third network device connected to the second node. The second parameter is used to compensate for the signal-to-noise ratio (SNR) of the second signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the SNR of the second signal in the third network device connected to the second node.

[0056] Optionally, both the first and second nodes can be UL Only nodes.

[0057] In one possible implementation, the first cell may be a cell corresponding to a second network device connected to the first node, wherein the second network device is the first network device, or the second network device and the first network device are different network devices; and / or, the second cell may be a cell corresponding to a third network device connected to the second node, wherein the third network device and the second network device are different network devices.

[0058] In one possible implementation, the first parameter may be associated with at least one of the following: the first cell, the first sequence, or the first resource; and / or, the second parameter may be associated with at least one of the following: the second cell, the second sequence, or the second resource.

[0059] For example, the first parameter associated with the first cell can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of part or all of the SSBs of the first cell, compensating for the received quality of part or all of the CSI-RS of the first cell, or compensating for the signal-to-noise ratio of part or all of the CSI-RS of the first cell. For example, the first parameter associated with the first sequence can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of the SSBs generated based on the first sequence, compensating for the received quality of the CSI-RS generated based on the first sequence, or compensating for the signal-to-noise ratio of the CSI-RS generated based on the first sequence. For example, the first parameter associated with the first resource can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of the SSBs carried by the first resource, compensating for the received quality of the CSI-RS carried by the first resource, or compensating for the signal-to-noise ratio of the CSI-RS carried by the first resource.

[0060] For example, the second parameter associated with the second cell can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of part or all of the SSBs of the second cell, compensating for the received quality of part or all of the CSI-RS of the second cell, or compensating for the signal-to-noise ratio of part or all of the CSI-RS of the second cell. For example, the second parameter associated with the second sequence can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of the SSBs generated based on the second sequence, compensating for the received quality of the CSI-RS generated based on the second sequence, or compensating for the signal-to-noise ratio of the CSI-RS generated based on the second sequence. For example, the second parameter associated with the second resource can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of the SSBs carried by the second resource, compensating for the received quality of the CSI-RS carried by the second resource, or compensating for the signal-to-noise ratio of the CSI-RS carried by the second resource.

[0061] In one possible implementation, the first signal is an SSB; the first parameter is associated with the first cell and may include: the first parameter is associated with a first SSB of the first cell, and the first SSB belongs to all or part of the first signal of the first cell where the first node is located; and / or, the second parameter is associated with the second cell and may include: the second parameter is associated with a second SSB of the second cell, and the second SSB belongs to all or part of the first signal of the second cell where the second node is located.

[0062] In one possible implementation, the second signal may be a CSI-RS; the first parameter is associated with the first cell and may include: the first parameter is associated with a first CSI-RS of the first cell, the first CSI-RS belonging to all or part of the second signals of the first cell where the first node is located; and / or, the second parameter is associated with the second cell and may include: the second parameter is associated with a second CSI-RS of the second cell, the second CSI-RS belonging to all or part of the second signals of the second cell where the second node is located.

[0063] Thirdly, this application provides a communication device that can be used to execute the methods described in the first aspect and any possible implementation thereof. The communication device may be, for example, a terminal device, or a device within a terminal device. The communication device may include modules, units, or means corresponding to the methods described in the first aspect and any possible implementation thereof. These modules, units, or means may be implemented in hardware, software, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules or units corresponding to the aforementioned functions.

[0064] In one possible implementation, the communication device may include a baseband device and a radio frequency device.

[0065] In another possible implementation, the communication device may include a processing module (sometimes also called a processing unit) and a transceiver module (sometimes also called a transceiver unit). The transceiver module is capable of both sending and receiving functions. When the transceiver module performs the sending function, it may be called a sending module (sometimes also called a sending unit), and when it performs the receiving function, it may be called a receiving module (sometimes also called a receiving unit). The sending module and the receiving module may be the same functional module, referred to as the transceiver module, which performs both sending and receiving functions; or, the sending module and the receiving module may be different functional modules, with "transceiver module" being a collective term for these functional modules.

[0066] Fourthly, this application provides a communication device that can be used to perform the methods described in the second aspect and any possible implementation thereof. The communication device may be, for example, a first network device, or a device within a first network device. The communication device may include modules, units, or means corresponding to the methods described in the second aspect and any possible implementation thereof. These modules, units, or means may be implemented in hardware, software, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules or units corresponding to the aforementioned functions.

[0067] In one possible implementation, the communication device may include a baseband device and a radio frequency device.

[0068] In another possible implementation, the communication device may include a processing module (sometimes also called a processing unit) and a transceiver module (sometimes also called a transceiver unit). The transceiver module is capable of both sending and receiving functions. When the transceiver module performs the sending function, it may be called a sending module (sometimes also called a sending unit), and when it performs the receiving function, it may be called a receiving module (sometimes also called a receiving unit). The sending module and the receiving module may be the same functional module, referred to as the transceiver module, which performs both sending and receiving functions; or, the sending module and the receiving module may be different functional modules, with "transceiver module" being a collective term for these functional modules.

[0069] Fifthly, this application provides a communication system that may include the communication device provided in the third aspect above, and / or the communication device provided in the fourth aspect above.

[0070] Sixthly, this application also provides a communication device. The communication device may include one or more processors. Optionally, the communication device may further include a memory. The memory is used to store one or more computer programs or instructions. The one or more processors are used to execute the one or more computer programs or instructions stored in the memory, causing the communication device to perform the methods described in any of the first or second aspects and any possible implementations thereof.

[0071] In a seventh aspect, this application also provides a communication device, comprising: a processor and an interface circuit; the interface circuit is configured to receive signals from other communication devices besides the communication device and transmit them to the processor, or to send signals from the processor to other communication devices besides the communication device. The processor is configured to implement the method described in any of the first or second aspects and any possible implementations thereof through logic circuits or by executing computer programs or instructions. Exemplarily, the communication device may be a terminal device as described in the first aspect, or a device included in the terminal device; or, the communication device may be a first network device as described in the second aspect, or a device included in the first network device.

[0072] In some possible designs, when the device is a chip system, it can be composed of chips or contain chips and other discrete components.

[0073] Eighthly, this application also provides a chip system comprising at least one chip and a memory, wherein the at least one chip is configured to read and execute a program stored in the memory to implement the method described in any of the first or second aspects and any possible implementation thereof.

[0074] Ninthly, this application also provides a computer-readable storage medium for storing a computer program or instructions that, when executed, cause the method described in any of the first or second aspects and any possible implementation thereof to be implemented.

[0075] In a tenth aspect, this application also provides a computer program product comprising a computer program or instructions that, when executed on a computer, cause the method described in any of the first or second aspects and any possible implementation thereof to be implemented.

[0076] The technical effects achievable by the second to tenth aspects and any of their possible implementations are described in the same way as the technical effects achievable by any of the first or second aspects and any of their possible implementations, and will not be repeated here. Attached Figure Description

[0077] Figure 1 This is a schematic diagram of a network architecture for a communication system applicable to embodiments of this application;

[0078] Figure 2 This is a schematic diagram of cell reselection according to an embodiment of this application;

[0079] Figure 3 A schematic diagram illustrating the deployment of a UL Only node in a network device, as provided in an embodiment of this application;

[0080] Figure 4 A flowchart illustrating the first communication method provided in an embodiment of this application;

[0081] Figure 5 Schematic diagrams illustrating various deployment scenarios provided in the embodiments of this application;

[0082] Figure 6 A flowchart illustrating the second communication method provided in this application embodiment;

[0083] Figure 7 A flowchart illustrating the third communication method provided in this application embodiment;

[0084] Figure 8 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0085] Figure 9 This is a schematic diagram of the structure of another communication device provided in the embodiments of this application;

[0086] Figure 10 This is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0087] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0088] The network architecture and business scenarios described in this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0089] I. In the embodiments of this application, "multiple" can refer to two or more. Therefore, in the embodiments of this application, "multiple" can also be understood as "at least two". "At least one" can be understood as one or more, such as one, two or more. For example, "including at least one" means including one, two or more. For example, including at least one of A, B and C, then it can include A, B, C, A and B, A and C, B and C, or A, B and C. "And / or" describes the association relationship of the associated objects. Specifically, there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0090] II. In the embodiments of this application, the terms "system" and "network" can be used interchangeably, and "according to" and "based on" can be used interchangeably.

[0091] The ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are generally used to distinguish different objects, and are not used to limit the order, timing, priority, or importance of multiple objects. For example, the first SSB and the second SSB involved in the embodiments of this application are used to distinguish different SSBs, and do not limit the order, timing, priority, or importance of these two SSBs.

[0092] 3. The terms “comprising” and “having” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product or device.

[0093] IV. In this application, "predefined" may include predefined terms, such as protocol definitions. "Predefined" can be implemented by pre-storing corresponding codes, tables, or other means of indicating relevant information in the device (e.g., including various network elements), and this application does not limit the specific implementation method.

[0094] V. The term "storage" or "preservation" in this application can refer to storage in one or more memory devices. These memory devices can be separately configured or integrated into an encoder, decoder, processor, or communication device. Alternatively, some memory devices can be separately configured, while others can be integrated into a decoder, processor, or communication device. The type of memory can be any form of storage medium, and this is not limited.

[0095] VI. The arrows or boxes indicated by dashed lines in the schematic diagrams in the accompanying drawings of this application represent optional steps or optional modules.

[0096] VII. In this application, "instruction" may include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information for the purpose of instructing A, it can be understood that the instruction information carries A, directly instructs A, or indirectly instructs A.

[0097] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is a relationship between the other information and the information to be instructed. It can also indicate only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent. Furthermore, the information to be instructed can be sent as a whole or divided into multiple sub-information pieces, and the sending period and / or timing of these sub-information pieces can be the same or different.

[0098] 8. In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0099] IX. In the embodiments of this application, the words "exemplarily," "for example," "for instance," etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as an "example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the word "example" is intended to present concepts in a specific manner. In the embodiments of this application, "of," "corresponding, relevant," and "corresponding" may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0100] 10. The embodiments of this application will be presented in the context of a system including multiple devices, components, modules, etc. It should be understood that the system may include other unmentioned devices, components, modules, etc., or may only include some of the devices, components, or modules mentioned in the embodiments. Optionally, the terms "component" and "part" in this application can be used interchangeably.

[0101] The system architecture applicable to the embodiments of this application will be introduced below.

[0102] The technical solutions of this application embodiment can be applied to various communication systems, such as integrated sensing and communication (ISAC), universal mobile telecommunications system (UMTS), wireless local area network (WLAN), short-range wireless communication systems (such as sidelink, wireless fidelity, Wi-Fi, Bluetooth, etc.), wired networks, vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, vehicle-to-everything (V2X) communication systems, 4th generation (4G) mobile communication systems (such as Long Term Evolution (LTE) systems), LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, worldwide interoperability for microwave access (WiMAX) communication systems, and 5th generation (5G) mobile communication systems (such as New Radio). The scope is not limited to radio (NR) systems, future communication systems, or other similar communication systems. The embodiments of this application use… Figure 1 The communication system shown is used as an example for description. When the technical solutions of the embodiments of this application are applied to other communication systems, the devices, components, modules, etc. in the embodiments can be replaced with corresponding devices, components, modules in other communication systems without limitation.

[0103] Figure 1 This is a schematic diagram of the architecture of a communication system used in an embodiment of this application. Figure 1 As shown, the communication system includes an access network 100 and a core network 200. Optionally, the communication system may also include an Internet 300. The access network 100 may include at least one radio access network (RAN) node, such as... Figure 1 110a and 110b may also include at least one terminal device, such as Figure 1The series consists of 120a-120j. Specifically, 110a is a base station (BS), 110b is a micro-site, 120a, 120e, 120f, and 120j are mobile phones, 120b is a car, 120c is a fuel dispenser, 120d is a home access point (HAP) deployed indoors or outdoors, 120g is a laptop, 120h is a printer, and 120i is a drone. The same terminal device or network device can provide different functions in different application scenarios. For example... Figure 1 The mobile phones included are 120a, 120e, 120f, and 120j. Mobile phone 120a can access base station 110a, connect to car 120b, communicate directly with mobile phone 120e, and access HAP. Car 120b can access HAP and communicate directly with mobile phone 120a. Mobile phone 120f can connect to micro-station 110b, connect to laptop 120g, and connect to printer 120h. Mobile phone 120j can control drone 120i.

[0104] A network device is a network-side device with wireless transceiver capabilities. This network device can be a unit in a radio access network (RAN) that provides wireless communication functionality to terminal devices, referred to as RAN equipment; alternatively, it can also be a core network device. For ease of understanding, the following explanation uses RAN equipment as an example. RAN can be an access network in the 3rd Generation Partnership Project (3GPP), such as 4G, 5G, or future-oriented networks. RAN can also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a communication network combining two or more of these. RAN equipment can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, an access node in a WiFi system, a wireless relay node, or a wireless backhaul node, etc.

[0105] RAN equipment can also be modules or units that perform some of the functions of a base station. For example, it can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), and can also perform the functions of the service data adaptation protocol (SDAP). The DU performs the functions of the base station's radio link control layer and medium access control (MAC) layer, and can also perform some or all of the physical layer functions. For specific descriptions of the above protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). CU and DU can be set up separately, or they can be included in the same network element, such as in the baseband unit (BBU). An RU can be included in radio frequency equipment or radio frequency units, such as in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). In different systems, CU, DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open CU (O-CU), DU can also be called an open DU (O-DU), and RU can also be called an open RU (O-RU). Any of the units among CU (or CU-control plane (CU-CP), or CU-user plane (CU-UP)), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. Network equipment can be a macro base station (e.g., Figure 1 110a in the text), can also be a micro base station or an indoor station (such as... Figure 1 In 110b), it can also be a relay node or a donor node, etc. The embodiments of this application do not limit the specific technology or device form used in the network equipment.

[0106] In the embodiments of this application, the functions of the network device can be executed by modules (such as chips) within the network device, or by a control subsystem that includes the functions of the network device. This control subsystem, which includes the functions of the network device, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities.

[0107] A terminal device is a user-side device with wireless transceiver capabilities. Terminal devices can also be called terminals, user equipment (UE), user terminals, user devices, user units, user stations, access terminals, access stations, UE stations, remote stations, wireless communication equipment, mobile stations, or mobile terminals, etc. Terminal devices typically contain communication modules, circuits, or chips that perform the corresponding communication functions. The terminal may also be configured with program instructions for performing these communication functions. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-to-machine (M2M) or machine-type communication (MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wearables, smart transportation, and smart city. Terminal devices can include mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, transportation vehicles with wireless communication capabilities, and communication modules.

[0108] In the embodiments of this application, the device for implementing the functions of the terminal device can be the terminal device itself, or it can be any device that supports the terminal device in implementing the functions, such as a chip system or a combination of devices or components that can implement the functions of the terminal device. This device can be installed in the terminal device. The embodiments of this application do not limit the specific technology or device form used in the terminal device.

[0109] Network devices and terminal devices can be fixed in location or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of the network devices and terminal devices.

[0110] Network devices and terminal devices can communicate via air interface protocols. The air interface can be simply referred to as the air interface. Network devices can communicate with each other via network device-to-network device interface protocols. Terminal devices can communicate with each other via licensed spectrum, unlicensed spectrum, or both simultaneously, without limitation.

[0111] The roles of network devices and terminal devices can be relative, for example, Figure 1 The helicopter or drone 120i can be configured as a mobile network device. For terminal devices 120j that access the wireless access network 100 via 120i, terminal device 120i is a network device; however, for network device 110a, 120i is a terminal device, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a network device-to-network device interface protocol; in this case, 120i is also a network device relative to 110a. Therefore, both network devices and terminal devices can be collectively referred to as communication devices. Figure 1 110a and 110b can be referred to as communication devices with network equipment functions. Figure 1 The 120a-120j in the text can be referred to as communication devices with terminal equipment functions.

[0112] It should be noted that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0113] The following section will explain the relevant terms used in the embodiments of this application. It should be noted that these explanations are intended to make the embodiments of this application easier to understand and should not be construed as limiting the scope of protection claimed in this application.

[0114] 1. Synchronization signal and physical broadcast channel block (SSB):

[0115] The SSB can include the primary synchronization signal (PSS), the secondary synchronization signal (SSS), and the physical broadcast channel (PBCH). For a detailed description of the SSB, please refer to section 5.2.4 of 3GPP TS 38.300 V17.2.0; it will not be repeated here.

[0116] During movement, the terminal device continuously performs cell search and measurement based on the SSB (Segment Subsystem for Buses) to select a suitable cell for initial access and mobility management. In this embodiment, the terminal device can perform (or execute) cell reselection based on the SSB. It is understood that in future communication systems, the terminal device may still perform cell reselection based on the SSB, or it may perform cell reselection based on other downlink signals; the communication method provided in this embodiment will still be applicable. For example, the terminal device may perform cell reselection based on a first signal, which may be the SSB, or it may be another downlink signal besides the SSB. Unless otherwise specified, the following description uses cell reselection based on the SSB as an example.

[0117] 2. Community reselection:

[0118] Cell reselection can refer to a situation where a terminal device in a disconnected state is already camped on a certain cell, but the signal strength of the camped cell is weak or the signal strength of a neighboring cell is stronger. In this case, a suitable new cell can be selected for access. Figure 2 As shown. For example, if network device 1 has a stronger signal, the terminal device will choose to camp on the cell corresponding to network device 1, such as... Figure 2 As shown in (1); as the terminal device moves, the signal strength of network device 2 becomes stronger, and the terminal device can reselect to the cell corresponding to network device 2, such as Figure 2 shown in (2). Figure 2The example illustrates network device 1 and network device 2 each sending four SSBs. The four SSBs of network device 1 are denoted as SSB1, SSB2, SSB3, and SSB4. The four SSBs of network device 2 are denoted as SSB5, SSB6, SSB7, and SSB8. It is understood that this embodiment does not limit the number of SSBs that the network devices can send. For example, the number of SSBs can also be 2, 8, or 16, etc., without limitation.

[0119] For example, cell reselection may include the following steps: Step A1: The terminal device receives multiple SSBs, which consist of SSBs from network device 1 and SSBs from network device 2. The terminal device establishes a connection with network device 1, or in other words, the cell where the terminal device camps is the cell corresponding to network device 1; Step A2: The terminal device determines the cell to camp on based on the received power of the multiple SSBs. For example, the terminal device measures the multiple SSBs to obtain their received power. If the received power of the SSB from network device 1 is greater than the received power of the SSB from network device 2, the terminal device continues to camp on the cell corresponding to network device 1, i.e., the terminal device determines that the cell to camp on is the cell corresponding to network device 1. Figure 2 As shown in (1); or, if the SSB receiving power of network device 2 is greater than the SSB receiving power of network device 1, the terminal device can reselect to the cell corresponding to network device 2, that is, the terminal device determines the cell to be camped on is the cell corresponding to network device 2, such as Figure 2 As shown in (2) of the text. Figure 2 In (1), the SSB2 sent by network device 1 has the highest receiving power, and the terminal device is camped in the cell corresponding to network device 1. Figure 2 In step (2), the SSB7 sent by network device 2 has the highest received power, and the terminal device reselects to the cell corresponding to network device 2. This application embodiment does not limit the implementation process of cell reselection.

[0120] Optionally, the SSB's received power can be the SSB's reference signal received power (RSRP), without limitation.

[0121] 3. Cell handover:

[0122] Cell handover refers to a terminal device in a connected state switching from its current cell to another cell. In one embodiment, the terminal device measures at least one CSI-RS, obtains the measurement results of the at least one CSI-RS, and sends the measurement results to a network device, which then determines whether to perform a cell handover based on the measurement results. In another embodiment, the terminal device measures at least one CSI-RS, obtains the measurement results of the at least one CSI-RS, and determines whether to perform a cell handover based on the measurement results. The at least one CSI-RS can originate from the current cell, a neighboring cell, or both the current cell and a neighboring cell, without limitation. The measurement results of the CSI-RS can include the reception quality and / or the signal-to-noise ratio (SNR) of the CSI-RS. Optionally, the reception quality of the CSI-RS can be the reference signal received quality (RSRQ) of the CSI-RS. This application does not limit the implementation process of cell handover.

[0123] It is understood that future communication systems may still perform cell handover based on CSI-RS measurement results, or cell handover based on the measurement results of other downlink signals, and the communication method provided in this application embodiment will still be applicable. For example, cell reselection may be performed based on the measurement results of a second signal, which may be CSI-RS or other downlink signals besides CSI-RS. Unless otherwise specified, the following description will use cell handover based on CSI-RS measurement results as an example.

[0124] 4. UL Only Node:

[0125] A UL Only node can be understood as: a node whose transmission with the terminal device only includes uplink transmission; or as: a node that performs uplink transmission with the terminal device but not downlink transmission; or as: a node that supports receiving information from the terminal device (e.g., data, signaling, or reference signals, etc., without limitation) but does not support sending information to the terminal device; or as: a node with uplink wireless receiving capability but no downlink wireless transmitting capability; or as: a node with a receiving radio frequency link but no transmitting radio frequency link. Optionally, uplink transmission can be uplink data transmission, uplink signaling transmission, or uplink reference signal transmission, etc., and this application embodiment does not limit this.

[0126] It is understood that UL Only nodes can also have other names, such as UL-only transmission reception point (UL-only TRP) or UL TRP. This application does not limit the naming of UL Only nodes.

[0127] Optionally, the UL Only node can be the communication device itself, or it can be a device within the communication device, without limitation. For example, a device within the communication device can refer to a component within the communication device (e.g., a processor, chip, or chip system), or it can refer to a logic module or software capable of implementing all or part of the functions of the communication device. The communication device can be, for example, a terminal device or a network device, and the implementation form of the communication device is not limited in the embodiments of this application.

[0128] This UL Only node can connect to network devices to support communication with those devices, such as... Figure 3 As shown. For example, the UL Only node is connected to the network device via wired and / or wireless means. In one example, the UL Only node is connected to the network device via a wired connection, and the UL Only node has uplink wireless receiving capabilities but no downlink wireless transmitting capabilities, or the UL Only node has a receive radio frequency link but no transmit radio frequency link. Optionally, a network device can connect to at least one UL Only node, or a network device can deploy at least one UL Only node. Figure 3 The example shown illustrates a network device deploying two UL Only nodes (denoted as UL Only Node 1 and UL Only Node 2). UL Only Node 1 can receive information from terminal device 1 and send that information to the network device. UL Only Node 2 can receive information from terminal device 2 and send the received information to the network device. This embodiment does not limit the number of UL Only nodes deployed on a single network device.

[0129] In mobile communication systems, terminal devices located at the cell edge suffer from significant path loss and are limited by their uplink transmission power, resulting in impaired communication performance. UL Only nodes connect to network equipment, allowing uplink data from terminal devices to be transmitted to these nodes before being sent to the network. This reduces the impact of path loss and limited uplink transmission power on communication performance, improving uplink coverage and enhancing the communication performance of terminal devices at the cell edge. Furthermore, the transmission between UL Only nodes and terminal devices is limited to uplink transmission; no active wireless signal transmission is performed, eliminating the need for a dedicated radio frequency link. Compared to improving uplink coverage through dense network deployment, this reduces costs and interference.

[0130] As analyzed above, UL Only nodes can effectively improve uplink coverage, but since they only perform uplink transmission and not downlink transmission, they cannot send downlink signals to terminal devices, rendering current cell reselection and cell handover methods inapplicable. Therefore, how to implement cell reselection and / or cell handover in scenarios where network devices are deployed with UL Only nodes is a problem that needs to be solved.

[0131] Based on this, embodiments of this application provide a communication method and apparatus for cell reselection and / or cell handover in network equipment deployment UL Only node scenarios, which is beneficial to improving uplink coverage. The method and apparatus described in this application are based on the same technical concept. Since the principles by which the method and apparatus solve problems are similar, the implementation of the apparatus and method can be referred to each other, and repeated details will not be elaborated further.

[0132] The communication method provided in the embodiments of this application will now be described in detail with reference to the accompanying drawings. This method can be applied to... Figure 1 ,or Figure 2 The communication system shown is not limited to this. This application describes the interaction between a first device and a second device as an example. Exemplarily, unless otherwise specified, the "first device" in this application can be the terminal device itself, or a component within the terminal device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the terminal device's functions. Similarly, unless otherwise specified, the "second device" in this application can be the first network device itself, or a component within the first network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the first network device's functions. For ease of understanding, the following description uses the first device as the terminal device and the second device as the first network device.

[0133] It is understood that in the embodiments of this application, the terminal device or the first network device may execute some or all of the steps in the embodiments of this application. These steps or operations are merely examples, and the embodiments of this application may also execute other operations or variations thereof. Furthermore, the steps may be executed in different orders as presented in the embodiments of this application, and it is not necessary to execute all the operations in the embodiments of this application.

[0134] It is understood that the communication method provided in this application embodiment can be applied to cell reselection, cell handover, or other scenarios where measurements are performed based on downlink signals (e.g., sensing measurement scenarios). Unless otherwise specified, the following description uses the application of the communication method provided in this application embodiment to cell reselection and cell handover as an example. The implementation process in other scenarios can be referred to the description in the following embodiments, and will not be repeated here.

[0135] Figure 4 This is a flowchart illustrating the first communication method provided in an embodiment of this application. Figure 4 As shown, the method may include the following:

[0136] S401: The first network device generates the first information.

[0137] Wherein, the first network device and the terminal device have established a connection; or the cell corresponding to the first network device includes the cell where the terminal device is camped; or the first network device is the network device to which the terminal device accesses. Optionally, the cell corresponding to the first network device can be understood as: the cell provided by the first network device; or it can be understood as: the cell of the first network device.

[0138] The first information can be used to indicate (or determine) a first parameter, or the first information can be used to indicate (or determine) a second parameter, or the first information can be used to indicate (or determine) both a first parameter and a second parameter. In one embodiment, the first information may include a first field, which can be used to indicate the first parameter and / or the second parameter. Optionally, the first field may be an RSRP-Offset field, without limitation. Optionally, the first field may also be an information element (IE).

[0139] The first parameter can be used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located; compensating for the received quality of all or part of the second signal in the first cell where the first node is located; or compensating for the signal-to-noise ratio (SNR) of all or part of the second signal in the first cell where the first node is located. Optionally, the received power of the first signal can be the RSRP of the first signal. The received quality of the second signal can be the reference signal received quality (RSRQ) of the second signal. Optionally, the first signal can be SSB, without limitation. Optionally, the second signal can be CSI-RS, without limitation.

[0140] Optionally, the first parameter can be a compensation value, such as 0 dB, 1 dB, 2 dB, 5 dB, or 6 dB; or, the first parameter can also be a compensation coefficient, such as 1, 1.1, 1.2, or 1.3. The embodiments of this application do not limit the implementation form and value of the first parameter.

[0141] The transmission between the first node and the terminal device includes only uplink transmission. Optionally, this can be understood as: the first node performs uplink transmission with the terminal device but does not perform downlink transmission; or it can be understood as: the first node supports receiving information from the terminal device but does not support sending information to the terminal device; or it can be understood as: the first node has uplink wireless receiving capabilities but does not have downlink wireless transmitting capabilities; or it can be understood as: the first node has a receiving radio frequency link but does not have a transmitting radio frequency link. For example, the first node can be a UL Only node. For a description of UL Only nodes, please refer to the terminology explanation; it will not be repeated here.

[0142] In one implementation, the first cell where the first node is located can be the cell corresponding to the second network device. Accordingly, the second network device is connected to the first node. Optionally, the connection between the second network device and the first node can be understood as: the second network device deploys the first node. Optionally, the first parameter used to compensate for all or part of the received power of the first signal in the first cell where the first node is located can be understood as: the first parameter used to compensate for all or part of the received power of the first signal in the second network device connected to the first node. Optionally, the first parameter used to compensate for all or part of the received power of the first signal in the first cell where the first node is located can be understood as: the first parameter used to compensate for all or part of the received power of the first signal in the second network device connected to the first node. Optionally, the first parameter used to compensate for all or part of the received quality of the second signal in the first cell where the first node is located can be understood as: the first parameter used to compensate for all or part of the received quality of the second signal in the second network device connected to the first node. Optionally, the first parameter used to compensate for all or part of the signal-to-noise ratio of the second signal in the first cell where the first node is located can be understood as: the first parameter used to compensate for all or part of the signal-to-noise ratio of the second signal in the second network device connected to the first node.

[0143] In this configuration, the second network device can be the first network device, and correspondingly, the first cell is the cell where the terminal device camps, and can be referred to as the local cell. For example, the first parameter can be used to compensate for the received power of all or part of the SSBs in the local cell. For example, the first parameter can be used to compensate for the received quality and / or signal-to-noise ratio of all or part of the CSI-RS in the local cell. Alternatively, the second network device can be a different network device from the first network device, and correspondingly, the first cell is not where the terminal device camps, and can be referred to as a neighboring cell. For example, the first parameter can be used to compensate for the received power of all or part of the SSBs in the neighboring cell. For example, the first parameter can be used to compensate for the received quality and / or signal-to-noise ratio of all or part of the CSI-RS in the neighboring cell.

[0144] In one example, the first piece of information is used to indicate the first parameter, not the second parameter. The second network device is the first network device. This can be understood as: UL Only nodes are deployed only in this cell. Figure 5 As shown in (1) above. In another example, the first information is used to indicate the first parameter, not the second parameter. The second network device is a different network device from the first network device. This can be understood as: UL Only nodes are deployed only in neighboring cells, such as... Figure 5 As shown in (2) of the text. Figure 5 The example uses two network devices, network device 1 and network device 2. SSB2 has the highest receive power, and the terminal device is camped in the cell corresponding to network device 1.

[0145] The second parameter can be used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located. For the first signal, the received power of the first signal, the second signal, and the received quality of the second signal, please refer to the foregoing description, which will not be repeated here.

[0146] Optionally, the second parameter can be a compensation value; or the second parameter can also be a compensation coefficient. For the implementation method, please refer to the description of the first parameter, which will not be repeated here. This application does not limit the implementation form or value of the second parameter in its embodiments.

[0147] The transmission between the second node and the terminal device includes only uplink transmission. Optionally, this can be understood as: the second node performs uplink transmission with the terminal device but does not perform downlink transmission; or it can be understood as: the second node supports receiving information from the terminal device but does not support sending information to the terminal device; or it can be understood as: the second node has uplink wireless receiving capabilities but does not have downlink wireless transmitting capabilities; or it can be understood as: the second node has a receiving radio frequency link but does not have a transmitting radio frequency link. For example, the second node can be a UL Only node. For a description of UL Only nodes, please refer to the terminology explanation; it will not be repeated here.

[0148] In one implementation, the second cell where the second node is located can be the cell corresponding to the third network device. Accordingly, the third network device is connected to the second node. Optionally, the connection between the third network device and the second node can be understood as: the third network device deploys the second node. Optionally, the second parameter used to compensate for all or part of the received power of the first signal in the second cell where the second node is located can be understood as: the second parameter used to compensate for all or part of the received power of the first signal in the third network device connected to the second node. Optionally, the second parameter used to compensate for all or part of the received quality of the second signal in the second cell where the second node is located can be understood as: the second parameter used to compensate for all or part of the received quality of the second signal in the third network device connected to the second node. Optionally, the second parameter used to compensate for the signal-to-noise ratio (SNR) of the second signal in the second cell where the second node is located can be understood as: the second parameter used to compensate for all or part of the SNR of the second signal in the third network device connected to the second node.

[0149] In this context, the third network device and the first network device can be different network devices. Correspondingly, the second cell is not where the terminal device resides; it can be called a neighboring cell. For example, the second parameter can be used to compensate for all or part of the received power of the neighboring cell's SSB. For example, the second parameter can be used to compensate for all or part of the received quality and / or signal-to-noise ratio of the neighboring cell's CSI-RS. Alternatively, the third network device can also be the first network device, and correspondingly, the second cell is the first cell. For the implementation process, please refer to the description of the second network device being the first network device; it will not be repeated here. For ease of understanding, unless otherwise specified, the following description will use the example of the third network device and the first network device being different network devices.

[0150] Optionally, neither the second nor the third network device is the first network device. The third network device can be a different network device from the second network device. The first and second parameters can be used for at least one of the following: compensating for the received power of the first signal in different neighboring cells, compensating for the received quality of the second signal in different neighboring cells, or compensating for the signal-to-noise ratio of the second signal in different neighboring cells. Optionally, the second network device is a different network device from the first network device, and the third network device can also be the second network device. The first and second parameters can be used for at least one of the following: compensating for the received power of different first signals in the same cell, compensating for the received quality of different second signals in the same cell, or compensating for the signal-to-noise ratio of different second signals in the same cell.

[0151] In one example, the first piece of information is used to indicate the second parameter, but not the first parameter. This can be understood as: deploying UL Only nodes only in neighboring cells, such as... Figure 5 As shown in (2) above. In another example, the first information is used to indicate the first and second parameters, and the second network device is the first network device. This can be understood as: UL Only nodes are deployed in both this cell and neighboring cells, such as... Figure 5 As shown in (3) in the example. In another example, the first information is used to indicate the first parameter and the second parameter, the second network device is a different network device from the first network device, and the third network device is a different network device from the second network device. This can be understood as: two neighboring cells deploy UL Only nodes.

[0152] Figure 5 The example shown uses a single neighboring cell. It is understood that the embodiments of this application do not limit the number of neighboring cells detected by the terminal device. Optionally, when the terminal device detects multiple neighboring cells, all of these neighboring cells may have UL Only nodes deployed; or some of these neighboring cells may have UL Only nodes deployed, while the remaining neighboring cells may not have UL Only nodes deployed; or, none of these neighboring cells may have UL Only nodes deployed.

[0153] It is understood that the received power of the first signal, the received quality of the second signal, and the signal-to-noise ratio of the second signal can reuse the same compensation value (or compensation coefficient), or they can be indicated separately without restriction. Furthermore, the functions of the first parameter and the second parameter can be the same or different. For example, the first parameter may be used to compensate for the received power of the first signal, while the second parameter may be used to compensate for the received quality and / or signal-to-noise ratio of the second signal. Other cases are similar and will not be listed further.

[0154] Figure 4 The example illustrates how first information is used to indicate first parameters and / or second parameters, where the first parameter is used to compensate for all or part of the received power of the first signal in the first cell where the first node is located, and the second parameter is used to compensate for all or part of the received power of the first signal in the second cell where the second node is located.

[0155] In one possible implementation, the first information can be used to indicate (or determine) N parameters. These N parameters include a first parameter and / or a second parameter. Each of the N parameters is used to compensate for at least one of the following: the received power of the first signal, the received quality of the second signal, or the signal-to-noise ratio of the second signal, etc. The first signal, the received power of the first signal, the second signal, and the received quality of the second signal are described above and will not be repeated hereafter. For simplicity, unless otherwise specified, the following description will use SSB as the first signal and CSI-RS as the second signal as an example.

[0156] For example, the N parameters can be used to compensate for at least one of the following: compensating for the received power of M SSBs, compensating for the received quality of K CSI-RSs, or compensating for the signal-to-noise ratio of K CSI-RSs. For example, the N parameters can be used to compensate for the received power of M SSBs in at least one cell. For example, the N parameters can be used to compensate for the received quality and / or signal-to-noise ratio of K CSI-RSs in at least one cell. The at least one cell includes a first cell and / or a second cell. Each of the at least one cell is deployed with a UL Only node; or, in other words, the network device corresponding to the at least one cell is deployed with a UL Only node. Wherein, N is an integer greater than 0. M is an integer greater than or equal to N. K is an integer greater than or equal to N. For example, one parameter can be used to compensate for the received power of one SSB. For another example, one parameter can be used to compensate for the received power of multiple SSBs. For example, one parameter can be used to compensate for the received quality and / or signal-to-noise ratio of one CSI-RS. For another example, one parameter can be used to compensate for the received quality and / or signal-to-noise ratio of multiple CSI-RSs.

[0157] Optionally, all M SSBs can be SSBs of this cell, for example, UL Only nodes can be deployed only in this cell. Figure 5As shown in (1); or the M SSBs can all be SSBs of neighboring cells, for example, only at least one neighboring cell deploys a UL Only node, such as Figure 5 As shown in (2); or the M SSBs can also have some SSBs being SSBs of this cell, and the remaining SSBs being SSBs of at least one neighboring cell, for example, both this cell and at least one neighboring cell deploy UL Only nodes, such as Figure 5 As shown in (3) of the text.

[0158] Optionally, the K CSI-RS can all be CSI-RS of this cell, for example, UL Only nodes can be deployed only in this cell, such as... Figure 5 As shown in (1); or the K CSI-RS can all be CSI-RS of neighboring cells, for example, only at least one neighboring cell deploys a UL Only node, such as Figure 5 As shown in (2); or the K CSI-RS can also be partially CSI-RS of the local cell and partially CSI-RS of at least one neighboring cell, for example, ULOnly nodes are deployed in both the local cell and at least one neighboring cell, such as Figure 5 As shown in (3) of the text.

[0159] This application provides multiple implementation methods for the N parameters. The following describes these multiple implementation methods for the N parameters.

[0160] Method 1: N parameters are associated with at least one cell. Each of these at least one cell has a ULOnly node deployed. These at least one cell includes a first cell and / or a second cell. For example, the first parameter is associated with the first cell. For example, the second parameter is associated with the second cell.

[0161] In one implementation, a cell can be associated with a parameter. For example, a parameter can be used to compensate for at least one of the following: the received power of all SSBs of the associated cell, the received quality of all CSI-RS of the associated cell, or the received quality of all CSI-RS of the associated cell. For example, a first network device configures N parameters for N cells at a cell-level granularity. There is a one-to-one correspondence between the N cells and the N parameters. For example, a first parameter is associated with a first cell and is used for at least one of the following: compensating for the received power of all SSBs of the first cell, compensating for the received quality of all CSI-RS of the first cell, or compensating for the signal-to-noise ratio of all CSI-RS of the first cell. For example, a second parameter is associated with a second cell and is used for at least one of the following: compensating for the received power of all SSBs of the second cell, compensating for the received quality of all CSI-RS of the second cell, or compensating for the signal-to-noise ratio of all CSI-RS of the second cell.

[0162] For example, the first information may include the identifiers of N cells and information about N parameters. For instance, the first information may include the identifier of the first cell and information about the first parameter. For instance, the first information may include the identifier of the second cell and information about the second parameter. As an example, when N is 1, the first information may include: {the identifier of cell 1, information about parameter 1}. As yet another example, when N is greater than 1, the first information may include: {the identifier of cell 1, information about parameter 1}, {the identifier of cell 2, information about parameter 2}, and {the identifier of cell 3, information about parameter 3}.

[0163] The information for the N parameters can be their specific values ​​or their indices, etc., without limitation. For example, the terminal device can look up the N parameters in a parameter table based on their indices, as shown in Table 1. Table 1 uses compensation values ​​as an example. It is understood that the data in Table 1 are merely examples, and the embodiments of this application are not limited to them.

[0164] Table 1

[0165] index Compensation value (dB) 1 0 2 2 3 5 4 8

[0166] Optionally, if the N cells include this cell, the first information may include the identifier of at least one of the N cells other than this cell and information about N parameters. For example, if N is 1 and only this cell has a UL Only node deployed, the first information may include: {information of parameter 1}. As another example, if N is greater than 1 and the N cells include this cell, the first information may include: {information of parameter 1}, {identifier of cell 2, information of parameter 2}, and {identifier of cell 3, information of parameter 3}.

[0167] Optionally, the parameters associated with different cells can be different or the same. Correspondingly, the N parameters associated with multiple cells can be different, partially different, or the N parameters associated with multiple cells can be the same. For example, the SSB received power of cells with deployed UL Only nodes is compensated using a predefined parameter. As an example, the first information may include identifiers of N cells and N indication information, which are used to indicate that the SSB received power of the N cells is compensated using a predefined parameter. For example, the first information includes a first field, which includes a cell identifier indication field and a first subfield, which can be used to indicate whether to compensate for the SSB received power. For example, the first subfield may have a fourth value and a fifth value, where the fourth value indicates that the SSB received power is compensated, and the fifth value indicates that the SSB received power is not compensated. For example, the first subfield occupies 1 bit, the fourth value is 0, and the fifth value is 1; or, the fourth value is 1, and the fifth value is 0. For example, the first information includes a first field, which includes a cell identifier indication field and a second subfield. This second subfield can be used to indicate whether compensation is needed for the reception quality of CSI-RS. Alternatively, the first information may include a first field, which includes a cell identifier indication field and a third subfield. This third subfield can be used to indicate whether compensation is needed for the signal-to-noise ratio of CSI-RS. The implementation of the second and third subfields is described in the first subfield description and will not be repeated here. It is understood that the data in Table 2 are merely examples, and the embodiments of this application are not limited thereto.

[0168] Optionally, for cells without deployed UL Only nodes, the compensation value for the received power of the SSB in the cell can be 0; or, for cells without deployed UL Only nodes, the compensation coefficient for the received power of the SSB in the cell can be 1.

[0169] In another implementation, a cell can be associated with multiple parameters. For example, multiple parameters can be used for at least one of the following: compensating for the received power of all or part of the SSBs of its associated cell, compensating for the received quality of all or part of the CSI-RS of its associated cell, or compensating for the signal-to-noise ratio of all or part of the CSI-RS of its associated cell. This application does not limit the number of SSBs in a cell. For example, the first network device configures parameters at the SSB granularity. For example, the first parameter can be associated with the first SSB of the first cell. Optionally, associating the first parameter with the first SSB of the first cell can be understood as: the first parameter is used to compensate for the received power of the first SSB, and the first SSB belongs to the SSB of the first cell. For example, the second parameter can be associated with the second SSB of the second cell. Optionally, associating the second parameter with the SSB of the second cell can be understood as: the second parameter is used to compensate for the received power of the second SSB, and the second SSB belongs to the SSB of the second cell. In this embodiment, configuration is performed at the SSB level, allowing for differentiated configuration for different SSB beam patterns. This enables adaptation to scenarios where the coverage area of ​​the UL Only node deployed by the network device is only a portion of the network device's coverage area (e.g., Figure 5 (The SSB5 beam direction may not be covered by the UL Only node), which is beneficial to improving communication performance.

[0170] This application embodiment does not limit the number of CSI-RS in a cell. For example, the first network device configures parameters at the CSI-RS granularity. For example, the first parameter can be associated with the first CSI-RS of the first cell. Optionally, associating the first parameter with the first CSI-RS of the first cell can be understood as: the first parameter is used to compensate for the reception quality and / or signal-to-noise ratio of the first CSI-RS, and the first CSI-RS belongs to the CSI-RS of the first cell. For example, the second parameter can be associated with the second CSI-RS of the second cell. Optionally, associating the second parameter with the CSI-RS of the second cell can be understood as: the second parameter is used to compensate for the reception quality and / or signal-to-noise ratio of the second CSI-RS, and the second CSI-RS belongs to the CSI-RS of the second cell. In this embodiment, configuration is performed at the CSI-RS granularity, which allows for differentiated configuration for different CSI-RS, thereby adapting to scenarios where the coverage area of ​​the UL Only node deployed by the network device is only a portion of the network device's coverage area, which is beneficial for improving communication performance.

[0171] For example, the first information may include the identifiers of N cells, the information of M SSBs, and the information of N parameters. For instance, the first information may include the identifier of the first cell, the information of the first SSB, and the information of the first parameter. For instance, the first information may include the identifier of the second cell, the information of the second SSB, and the information of the second parameter. As an example, if N is 1 and M is 2, the first information may include: {the identifier of cell 1, the information of SSB1, and the information of parameter 1} and {the identifier of cell 1, the information of SSB2, and the information of parameter 2}. As yet another example, if N is 2 and each cell has 2 SSBs, the first information may include: {the identifier of cell 1, the information of SSB1, and the information of parameter 1}, {the identifier of cell 1, the information of SSB2, and the information of parameter 2}, {the identifier of cell 2, the information of SSB3, and the information of parameter 3}, and {the identifier of cell 2, the information of SSB4, and the information of parameter 4}. The information of the M SSBs is used to indicate the M SSBs. For example, the information of the M SSBs may be the identifiers (or indices) of the M SSBs, without limitation. The information of the N parameters is described above and will not be repeated here.

[0172] For example, the first information may include the identifiers of N cells, information on M SSBs, information on K CSI-RSs, and information on N parameters. For instance, the first information may include the identifier of the first cell, information on the first SSB, information on the first CSI-RS, and information on the first parameter. For instance, the first information may include the identifier of the second cell, information on the second SSB, information on the second CSI-RS, and information on the second parameter. As an example, where N is 1, M is 2, and K is 2, the first information may include: {the identifier of cell 1, information on SSB1, information on CSI-RS1, and information on parameter 1} and {the identifier of cell 1, information on SSB2, information on CSI-RS2, and information on parameter 2}. Another example: N is 2, each cell has 2 SSBs, and each cell has 2 CSI-RSs. The first piece of information can include: {Cell 1 identifier, SSB1 information, CSI-RS1 information, parameter 1 information}, {Cell 1 identifier, SSB2 information, CSI-RS2 information, parameter 2 information}, {Cell 2 identifier, SSB3 information, CSI-RS3 information, parameter 3 information}, and {Cell 2 identifier, SSB4 information, CSI-RS4 information, parameter 4 information}. The information from K CSI-RSs is used to indicate K CSI-RSs. For example, the information from K CSI-RSs can be the identifiers (or indices) of K CSI-RSs, without limitation. For example, the information from M SSBs and N parameters should be referred to the previous content and will not be repeated here.

[0173] Optionally, the N cells include this cell. The first information may include the identifier of at least one cell among the N cells other than this cell, the information of M SSBs, and the information of N parameters. Alternatively, the first information may include the identifier of at least one cell among the N cells other than this cell, the information of M SSBs, the information of K CSI-RSs, and the information of N parameters. For example, if N is 1 and only this cell has a UL Only node deployed, M is 2, and K is 2, the first information may include: {information of SSB1, information of CSI-RS1, information of parameter 1} and {information of SSB2, information of CSI-RS2, information of parameter 2}. Another example: N is 2, N cells including this cell, each cell has 2 SSBs, each cell has 2 CSI-RSs, the first information can include: {SSB1 information, CSI-RS4 information, parameter 1 information}, {SSB2 information, CSI-RS1 information, parameter 2 information}, {cell 2 identifier, SSB3 information, CSI-RS3 information, parameter 3 information} and {cell 2 identifier, SSB4 information, CSI-RS4 information, parameter 4 information}.

[0174] Optionally, the parameters associated with multiple SSBs in the same cell can be the same, or the parameters associated with multiple SSBs in the same cell can be partially the same, or the parameters associated with multiple SSBs in the same cell can all be different. For example, cell 1 has a UL Only node deployed, and cell 1 has four SSBs, denoted as SSB1, SSB2, SSB3, and SSB4. SSB1 and SSB4 are associated with parameter 1, SSB2 is associated with parameter 2, and SSB3 is associated with parameter 3. The first information may include {the identifier of cell 1, the information of SSB1 and SSB4, and the information of parameter 1}, {the identifier of cell 1, the information of SSB2, and the information of parameter 2}, and {the identifier of cell 1, the information of SSB3, and the information of parameter 3}.

[0175] Optionally, the parameters associated with multiple CSI-RS in the same cell can be the same, or the parameters associated with multiple CSI-RS in the same cell can be partially the same, or the parameters associated with multiple CSI-RS in the same cell can all be different. For example, cell 1 has a UL Only node deployed, and cell 1 has four CSI-RS, denoted as CSI-RS1, CSI-RS2, CSI-RS3, and CSI-RS4. CSI-RS1 and CSI-RS4 are associated with parameter 1, CSI-RS2 is associated with parameter 2, and CSI-RS3 is associated with parameter 3. The first information may include {the identifier of cell 1, the information of CSI-RS1 and CSI-RS4, and the information of parameter 1}, {the identifier of cell 1, the information of CSI-RS2, and the information of parameter 2}, and {the identifier of cell 1, the information of CSI-RS3, and the information of parameter 3}.

[0176] For example, for an SSB beam not covered by a UL Only node, the compensation value for the received power of the SSB carried by that SSB beam can be 0; or, for an SSB beam not covered by a UL Only node, the compensation factor for the received power of the SSB carried by that SSB beam can be 1.

[0177] As an example, for a CSI-RS beam not covered by a UL Only node, the compensation value for the reception quality and / or signal-to-noise ratio of the CSI-RS carried by that CSI-RS beam can be 0; or, for a CSI-RS beam not covered by a UL Only node, the compensation factor for the reception quality and / or signal-to-noise ratio of the CSI-RS carried by that CSI-RS beam can be 1.

[0178] Another example is where the N parameters are N compensation values, all of which are non-zero; or, the N parameters are N compensation coefficients, all of which are non-1. For instance, for an SSB beam not covered by a UL Only node, the first information does not include compensation values ​​or coefficients for the received power of the SSB carried by that SSB beam. Similarly, for a CSI-RS beam not covered by a UL Only node, the first information does not include compensation values ​​or coefficients for the received quality and / or signal-to-noise ratio of the CSI-RS carried by that CSI-RS beam.

[0179] Method 2: N parameters are associated with at least one sequence. Each of the at least one sequence is used to generate an SSB and / or a CSI-RS. The at least one sequence includes a first sequence and / or a second sequence. Optionally, the first parameter may be associated with the first sequence. For example, the first parameter may be used to compensate for at least one of the following: the received power of the SSB generated based on the first sequence, the received quality of the CSI-RS generated based on the first sequence, or the signal-to-noise ratio of the CSI-RS generated based on the first sequence. Optionally, the SSB generated based on the first sequence may belong to the SSB of a first cell. Optionally, the CSI-RS generated based on the first sequence may belong to the CSI-RS of a first cell. Optionally, the second parameter may be associated with the second sequence. For example, the second parameter may be used to compensate for at least one of the following: the received power of the SSB generated based on the second sequence, the received quality of the CSI-RS generated based on the second sequence, or the signal-to-noise ratio of the CSI-RS generated based on the second sequence. Optionally, the SSB generated based on the second sequence may belong to the SSB of a second cell. Optionally, the CSR-RS generated based on the second sequence may belong to the CSI-RS of the second cell. Optionally, at least one sequence may be predefined and is not limited.

[0180] As an example, the first information may include information about at least one sequence and information about N parameters. The information about at least one sequence is used to indicate at least one sequence. For example, the information about at least one sequence may be an identifier (or index) of at least one sequence, without limitation. The information about the N parameters is described above and will not be repeated here. For example, the first information may include information about a first sequence and information about a first parameter. For example, the first information may include information about a second sequence and information about a second parameter. As an example, if N is 1, the first information may include {information about sequence 1, information about parameter 1}. As another example, if N is 2, the first information may include {information about sequence 1, information about parameter 1} and {information about sequence 2, information about parameter 2}.

[0181] Optionally, the parameters associated with multiple sequences can be the same, or the parameters associated with multiple sequences can be partially the same, or the parameters associated with multiple sequences can all be different. For details on multiple sequences having the same parameters, please refer to the section on N identical parameters associated with multiple cells; further details will not be provided here.

[0182] Method 3: N parameters are associated with at least one resource. Each of the at least one resource is used to carry an SSB and / or a CSI-RS. The resource may include at least one of the following: time-domain resource, frequency-domain resource, spatial-domain resource, or code-domain resource, etc. The at least one resource includes a first resource and / or a second resource. Optionally, the first parameter may be associated with the first resource. For example, the first parameter may be used to compensate for at least one of the following: the received power of the SSB carried by the first resource, the received quality of the CSI-RS carried by the first resource, or the signal-to-noise ratio of the CSI-RS carried by the first resource. Optionally, the SSB carried by the first resource may belong to the SSB of a first cell. Optionally, the CSI-RS carried by the first resource may belong to the CSI-RS of a first cell. Optionally, the second parameter may be associated with a second resource. For example, the second parameter may be used to compensate for at least one of the following: the received power of the SSB carried by the second resource, the received quality of the CSI-RS carried by the second resource, or the signal-to-noise ratio of the CSI-RS carried by the second resource. Optionally, the SSB generated by the SSB carried by the second resource can belong to the SSB of the second cell. Optionally, the CSI-RS carried by the second resource can belong to the CSI-RS of the second cell. Optionally, at least one resource can be predefined and is not limited.

[0183] For example, the first information may include information about at least one resource and information about N parameters. The information about at least one resource is used to indicate at least one resource. For example, the information about at least one resource may be an identifier (or index) of at least one resource, without limitation. The information about the N parameters is described above and will not be repeated here. For example, the first information may include information about a first resource and information about a first parameter. For example, the first information may include information about a second resource and information about a second parameter. As an example, if N is 1, the first information may include {information about resource 1, information about parameter 1}. As another example, if N is 2, the first information may include {information about resource 1, information about parameter 1} and {information about resource 2, information about parameter 2}.

[0184] Optionally, multiple resources can be associated with the same parameters, or the parameters of multiple resources can be partially the same, or all the parameters of multiple resources can be different. For details on multiple resources being associated with the same parameters, please refer to the section on N identical parameters in multiple cell associations; further details will not be provided here.

[0185] The above methods can be used independently, or two or three of the above methods can be used in combination. Optionally, the N parameters are associated with at least one of at least one cell, at least one sequence, or at least one resource. Optionally, the first parameter can be associated with at least one of the first cell, the first sequence, or the first resource. For example, associating the first parameter with the first cell can include associating the first parameter with the first SSB of the first cell. For example, associating the first parameter with the first cell can include associating the first parameter with the first CSI-RS of the first cell. Optionally, the second parameter can be associated with at least one of the second cell, the second sequence, or the second resource. For example, associating the second parameter with the second cell can include associating the second parameter with the second SSB of the second cell. For example, associating the second parameter with the second cell can include associating the second parameter with the second CSI-RS of the second cell.

[0186] For example, the first parameter can be associated with a first cell and a first sequence, meaning that the first parameter can be used to: compensate for the received power of an SSB generated based on the first sequence in the SSB of the first cell; compensate for the received quality of a CSI-RS generated based on the first sequence in the CSI-RS of the first cell; or compensate for the signal-to-noise ratio of a CSI-RS generated based on the first sequence in the CSI-RS of the first cell. For example, the first parameter is used to compensate for the received power of a first SSB belonging to the SSB of the first cell and generated based on the first sequence. For example, the first parameter is used to compensate for the received quality and / or signal-to-noise ratio of a first CSI-RS belonging to the CSI-RS of the first cell and generated based on the first sequence.

[0187] Alternatively, the first parameter may be associated with a first cell and a first resource, meaning that the first parameter can be used to: compensate for the received power of an SSB carried by the first resource in the first cell's SSB; compensate for the received quality of a CSI-RS carried by the first resource in the first cell's CSI-RS; or compensate for the signal-to-noise ratio of a CSI-RS carried by the first resource in the first cell's CSI-RS. For example, the first parameter may be used to compensate for the received power of a first SSB belonging to the first cell's SSB and carried by the first resource. For example, the first parameter may be used to compensate for the received quality and / or signal-to-noise ratio of a first CSI-RS belonging to the first cell's CSI-RS and carried by the first resource.

[0188] Alternatively, the first parameter may be associated with a first sequence and a first resource, meaning that the first parameter can be used to: compensate for the received power of an SSB generated based on the first sequence and carried by the first resource; compensate for the received quality of a CSI-RS generated based on the first sequence and carried by the first resource; or compensate for the signal-to-noise ratio of a CSI-RS generated based on the first sequence and carried by the first resource. For example, the first parameter is used to compensate for the received power of a first SSB carried by the first resource and generated based on the first sequence. For example, the first parameter is used to compensate for the received quality and / or signal-to-noise ratio of a first CSI-RS carried by the first resource and generated based on the first sequence.

[0189] Alternatively, the first parameter may be associated with a first cell, a first sequence, and a first resource, meaning that the first parameter can be used for at least one of the following: compensating for the received power of an SSB in the first cell that is generated based on the first sequence and carried by the first resource; compensating for the received quality of a CSI-RS in the first cell that is generated based on the first sequence and carried by the first resource; or compensating for the signal-to-noise ratio of a CSI-RS in the first cell that is generated based on the first sequence and carried by the first resource. For example, the first parameter is used to compensate for the received power of a first SSB, which belongs to the first cell's SSB, is generated based on the first sequence, and is carried by a second resource. For example, the first parameter is used to compensate for the received quality and / or signal-to-noise ratio of a first CSI-RS, which belongs to the first cell's CSI-RS, is generated based on the first sequence, and is carried by a second resource.

[0190] As another example, the second parameter can be associated with a second cell and a second sequence, meaning that the second parameter can be used for at least one of the following: compensating for the received power of an SSB generated based on the second sequence in the SSB of the second cell, compensating for the received quality of a CSI-RS generated based on the second sequence in the CSI-RS of the second cell, or compensating for the signal-to-noise ratio of a CSI-RS generated based on the second sequence in the CSI-RS of the second cell. Alternatively, the second parameter can be associated with a second cell and a second resource, meaning that the second parameter can be used for at least one of the following: compensating for the received power of an SSB carried by the second resource in the SSB of the second cell, compensating for the received quality of a CSI-RS carried by the second resource in the CSI-RS of the second cell, or compensating for the signal-to-noise ratio of a CSI-RS carried by the second resource in the CSI-RS of the second cell. Alternatively, the second parameter can be associated with the second sequence and the second resource, meaning that the second parameter can be used for at least one of the following: compensating for the received power of the SSB generated based on the second sequence and carried by the second resource; compensating for the received quality of the CSI-RS generated based on the second sequence and carried by the second resource; or compensating for the signal-to-noise ratio of the CSI-RS generated based on the second sequence and carried by the second resource. Alternatively, the second parameter can be associated with the second cell, the second sequence, and the second resource, meaning that the second parameter can be used for at least one of the following: compensating for the received power of the SSB generated based on the second sequence and carried by the second resource in the second cell's SSB; compensating for the received quality of the CSI-RS generated based on the second sequence and carried by the second resource in the second cell's CSI-RS; or compensating for the signal-to-noise ratio of the CSI-RS generated based on the second sequence and carried by the second resource in the second cell's CSI-RS. The implementation process of the second parameter can be referred to the description of the first parameter, and will not be repeated here.

[0191] In S401, the first network device can generate (or acquire, or determine) first information. In one embodiment, the first network device can acquire N parameters through measurement and generate the first information based on these N parameters. For example, the first network device can acquire the N parameters through measurement during site deployment (i.e., when deploying network equipment). Alternatively, the first network device can acquire the N parameters through measurement (e.g., sensing measurement) after site deployment (i.e., after network equipment deployment is completed). In one embodiment, the first network device acquires the N parameters by interacting with other network devices corresponding to the N parameters and generates the first information based on these N parameters. In one embodiment, the N parameters can be predefined. This application does not limit the implementation process of the first network device generating the first information.

[0192] S402: The first network device sends first information to the terminal device. Correspondingly, the terminal device receives the first information from the first network device.

[0193] Optionally, the first information may be carried by a third resource. For example, the first network device may map the first information onto a third resource for transmission; alternatively, the first network device may encode the first information and then map the processed first information onto a third resource for transmission. This application embodiment does not limit the transmission method of the first information. The third resource may include at least one of the following: time-domain resources, frequency-domain resources, spatial-domain resources, or code-domain resources, etc.

[0194] Optionally, the first information may be a system message; or, the first information may be carried by a system message, that is, the system message includes the first information, without limitation. For example, a first network device sends a system message to a terminal device, the system message including the first information; and the terminal device receives a system message from the first network device.

[0195] In the first communication method described above, a first node is deployed in the first cell (or the network device corresponding to the first cell is deployed with a first node). The transmission between the first node and the terminal device only includes uplink transmission. The first parameter can be used to compensate for all or part of the received power of the first signal in the first cell. Thus, even if the first node cannot send the first signal to the terminal device, the terminal device can still use the first parameter to compensate for the received power of the first signal in the first cell, ensuring the uplink coverage advantage gained by the first cell due to the deployment of the first node. This enables cell reselection in scenarios where the network device deploys a UL-only node, which is beneficial for improving uplink coverage. Similarly, the first parameter can be used to compensate for all or part of the received quality and / or signal-to-noise ratio of the second signal in the first cell. Thus, even if the first node cannot send the second signal to the terminal device, the terminal device can still use the first parameter to compensate for the received quality and / or signal-to-noise ratio of the second signal in the first cell, ensuring the uplink coverage advantage gained by the first cell due to the deployment of the first node. This enables cell handover in scenarios where the network device deploys a UL-only node, which is beneficial for improving uplink coverage.

[0196] The second cell deploys a second node (or the network equipment corresponding to the second cell deploys a second node). The transmission between this second node and the terminal device only includes uplink transmission. A second parameter can be used to compensate for all or part of the received power of the first signal in the second cell. This way, even if the second node cannot send the first signal to the terminal device, the terminal device can still use the second parameter to compensate for the received power of the first signal in the second cell, ensuring the uplink coverage advantage gained by the second cell due to the deployment of the second node. This enables cell reselection in scenarios where network equipment deploys UL Only nodes, which is beneficial for improving uplink coverage. Similarly, the second parameter can be used to compensate for all or part of the received quality and / or signal-to-noise ratio of the second signal in the second cell. This way, even if the second node cannot send the second signal to the terminal device, the terminal device can still use the second parameter to compensate for the received quality and / or signal-to-noise ratio of the second signal in the second cell, ensuring the uplink coverage advantage gained by the second cell due to the deployment of the second node. This enables cell handover in scenarios where network equipment deploys UL Only nodes, which is beneficial for improving uplink coverage.

[0197] Optionally, the first communication method described above may further include: the terminal device performing cell reselection based on the first information, and / or the terminal device performing cell handover based on the first information. Figure 4 Not shown in the image.

[0198] In one embodiment, first information is used to indicate a first parameter, which is used to compensate for the received power of all or part of the SSBs in the first cell where the first node is located. A second network device can send the first SSB to a terminal device. Correspondingly, the terminal device can receive the first SSB from the second network device and determine the cell to which it camps based on the received power compensated by the first SSB. The received power compensated by the first SSB is determined by the received power obtained from measuring the first SSB and the first parameter. For example, the first parameter is a compensation value, and the received power compensated by the first SSB is the sum of the received power obtained from measuring the first SSB and the first parameter. Alternatively, the first parameter is a compensation coefficient, and the received power compensated by the first SSB is the product of the received power obtained from measuring the first SSB and the first parameter.

[0199] In another embodiment, the first information is used to indicate the second parameter, which is used to compensate for the received power of all or part of the SSBs in the second cell where the second node is located. The third network device can send the second SSB to the terminal device; correspondingly, the terminal device can receive the second SSB from the third network device and determine the cell to camp on based on the received power compensated by the second SSB. The received power compensated by the second SSB is determined by the received power obtained from measuring the second SSB and the second parameter. For example, the second parameter is a compensation value, and the received power compensated by the second SSB is the sum of the received power obtained from measuring the second SSB and the second parameter. Alternatively, the second parameter is a compensation coefficient, and the received power compensated by the second SSB is the product of the received power obtained from measuring the second SSB and the second parameter.

[0200] In another embodiment, the first information is used to indicate a first parameter and a second parameter. The first parameter is used to compensate for the received power of all or part of the SSBs in the first cell where the first node is located, and the second parameter is used to compensate for the received power of all or part of the SSBs in the second cell where the second node is located. The second network device can send the first SSB to the terminal device; the third network device can send the second SSB to the terminal device; the terminal device can receive the first SSB from the second network device and the second SSB from the third network device, and determine the cell to camp on based on the received power after compensation for the first SSB and the received power after compensation for the second SSB. The received power after compensation for the first SSB is determined by measuring the received power obtained from the first SSB and the first parameter; the implementation process is described above and will not be repeated here. The received power after compensation for the second SSB is determined by measuring the received power obtained from the second SSB and the second parameter; the implementation process is described above and will not be repeated here.

[0201] In one implementation, the first SSB belongs to the SSB of this cell, and the compensated received power of the first SSB can be determined by the received power obtained from measuring the first SSB, the first parameter, and the first value. The first value can be predefined and is not limited. For example, the first value can be a predefined compensation value. Another example is that the first value can be a predefined compensation coefficient. This application does not limit the implementation method or value of the first value. For example, both the first parameter and the first value are compensation values, and the compensated received power of the first SSB is the sum of the received power obtained from measuring the first SSB, the first parameter, and the first value. Another example is that both the first parameter and the first value are compensation coefficients, and the compensated received power of the first SSB is the product of the received power obtained from measuring the first SSB, the first parameter, and the first value. In addition to considering the compensation of the first parameter, the received power of the SSB of this cell can also consider the compensation of the first value. This allows the SSB to continue camping in the cell as much as possible during cell reselection, reducing the impact on communication performance caused by reselecting other cells for access operations.

[0202] Optionally, the first SSB belongs to the SSB of this cell, and the received power obtained by measuring the first SSB can satisfy the first condition. The compensated received power of the first SSB can be determined by the received power obtained by measuring the first SSB, the first parameter, and the first value. The first condition can be predefined and is not limited. For example, the first condition can be meeting communication requirements. Another example is that the first condition can be that the received power obtained by measuring the first SSB is greater than or equal to a predetermined threshold. The embodiments of this application do not limit the implementation form of the first condition. In this way, when the terminal device performs cell reselection, it can conditionally consider using the first value to compensate for the received power of the SSB of this cell, in addition to considering the first parameter. This ensures the communication performance of this cell and allows the device to continue camping in this cell as much as possible.

[0203] In one embodiment, the first information is used to indicate a first parameter, which is used to compensate for the reception quality of all or part of the CSI-RS in the first cell where the first node is located. The second network device can send the first CSI-RS to the terminal device; correspondingly, the terminal device can receive the first CSI-RS from the second network device and send the reception quality after compensation to the first network device. The reception quality after compensation is determined by the reception quality obtained from measuring the first CSI-RS and the first parameter. For example, the first parameter is a compensation value, and the reception quality after compensation is the sum of the reception quality obtained from measuring the first CSI-RS and the first parameter. Alternatively, the first parameter is a compensation coefficient, and the reception quality after compensation is the product of the reception quality obtained from measuring the first CSI-RS and the first parameter.

[0204] In another embodiment, the first information is used to indicate the second parameter, which is used to compensate for the reception quality of all or part of the CSI-RS in the second cell where the second node is located. The third network device can send the second CSI-RS to the terminal device; correspondingly, the terminal device can receive the second CSI-RS from the third network device and send the reception quality after compensation to the first network device. The reception quality after compensation is determined by the reception quality obtained from measuring the second CSI-RS and the second parameter. For example, the second parameter is a compensation value, and the reception quality after compensation is the sum of the reception quality obtained from measuring the second CSI-RS and the second parameter. Alternatively, the second parameter is a compensation coefficient, and the reception quality after compensation is the product of the reception quality obtained from measuring the second CSI-RS and the second parameter.

[0205] In another embodiment, the first information is used to indicate a first parameter and a second parameter. The first parameter is used to compensate for the reception quality of all or part of the CSI-RS in the first cell where the first node is located, and the second parameter is used to compensate for the reception quality of all or part of the CSI-RS in the second cell where the second node is located. The second network device can send the first CSI-RS to the terminal device; the third network device can send the second CSI-RS to the terminal device; the terminal device can receive the first CSI-RS from the second network device and the second CSI-RS from the third network device, and send the reception quality after compensation for the first CSI-RS and the reception quality after compensation for the second CSI-RS to the first network device. The reception quality after compensation for the first CSI-RS is determined by the reception quality obtained from measuring the first CSI-RS and the first parameter; the implementation process is described above and will not be repeated here. The reception quality after compensation for the second CSI-RS is determined by the reception quality obtained from measuring the second CSI-RS and the second parameter; the implementation process is described above and will not be repeated here.

[0206] In one implementation, the first CSI-RS belongs to the CSI-RS of this cell. The reception quality after compensation for the first CSI-RS can be determined by the reception quality obtained from measuring the first CSI-RS, a first parameter, and a second value. The second value can be predefined and is not limited. For example, the second value can be a predefined compensation value. Another example is that the second value can be a predefined compensation coefficient. This application does not limit the implementation method or value of the second value. For example, both the first parameter and the second value are compensation values, and the reception quality after compensation for the first CSI-RS is the sum of the reception quality obtained from measuring the first CSI-RS, the first parameter, and the second value. Another example is that both the first parameter and the second value are compensation coefficients, and the reception quality after compensation for the first CSI-RS is the product of the reception quality obtained from measuring the first CSI-RS, the first parameter, and the second value. In addition to considering compensation for the first parameter, the reception quality of the CSI-RS of this cell can also consider compensation for the second value, thus allowing it to continue camping in this cell as much as possible and reducing the impact of cell handover on communication performance.

[0207] Optionally, the first CSI-RS belongs to the CSI-RS of this cell, and the reception quality obtained by measuring the first CSI-RS can satisfy the second condition. The reception quality after compensation for the first CSI-RS can be determined by the reception quality obtained by measuring the first CSI-RS, the first parameter, and the second value. The second condition can be predefined and is not limited. For example, the second condition can be meeting communication requirements. Another example is that the reception quality obtained by measuring the first CSI-RS is greater than or equal to a predetermined threshold. The embodiments of this application do not limit the implementation form of the second condition. The terminal device can conditionally consider using the second value to compensate for the reception quality of the CSI-RS of this cell, in addition to considering the first parameter, thus ensuring the communication performance of this cell and continuing to camp in this cell as much as possible.

[0208] In one embodiment, the first information is used to indicate a first parameter, which is used to compensate for the signal-to-noise ratio (SNR) of all or part of the CSI-RS in the first cell where the first node is located. The second network device can send the first CSI-RS to the terminal device; correspondingly, the terminal device can receive the first CSI-RS from the second network device and send the SNR compensated for the first CSI-RS to the first network device. The SNR compensated for the first CSI-RS is determined by the SNR obtained from measuring the first CSI-RS and the first parameter. For example, the first parameter is a compensation value, and the SNR compensated for the first CSI-RS is the sum of the SNR obtained from measuring the first CSI-RS and the first parameter. Alternatively, the first parameter is a compensation coefficient, and the SNR compensated for the first CSI-RS is the product of the SNR obtained from measuring the first CSI-RS and the first parameter.

[0209] In another embodiment, the first information is used to indicate the second parameter, which is used to compensate for the signal-to-noise ratio (SNR) of all or part of the CSI-RS in the second cell where the second node is located. The third network device can send the second CSI-RS to the terminal device; correspondingly, the terminal device can receive the second CSI-RS from the third network device and send the SNR after compensation to the first network device. The SNR after compensation is determined by the SNR obtained from measuring the second CSI-RS and the second parameter. For example, the second parameter is a compensation value, and the SNR after compensation is the sum of the SNR obtained from measuring the second CSI-RS and the second parameter. Alternatively, the second parameter is a compensation coefficient, and the SNR after compensation is the product of the SNR obtained from measuring the second CSI-RS and the second parameter.

[0210] In another embodiment, the first information is used to indicate a first parameter and a second parameter. The first parameter is used to compensate for the signal-to-noise ratio (SNR) of all or part of the CSI-RS in the first cell where the first node is located, and the second parameter is used to compensate for the SNR of all or part of the CSI-RS in the second cell where the second node is located. The second network device can send the first CSI-RS to the terminal device; the third network device can send the second CSI-RS to the terminal device; the terminal device can receive the first CSI-RS from the second network device and the second CSI-RS from the third network device, and send the SNR compensated for the first CSI-RS and the SNR compensated for the second CSI-RS to the first network device. The SNR compensated for the first CSI-RS is determined by the SNR obtained from measuring the first CSI-RS and the first parameter; its implementation process is described above and will not be repeated here. The SNR compensated for the second CSI-RS is determined by the SNR obtained from measuring the second CSI-RS and the second parameter; its implementation process is described above and will not be repeated here.

[0211] In one implementation, the first CSI-RS belongs to the CSI-RS of this cell. The signal-to-noise ratio (SNR) of the first CSI-RS after compensation can be determined by the SNR obtained from measuring the first CSI-RS, a first parameter, and a third value. The third value can be predefined and is not limited. For example, the third value can be a predefined compensation value. Another example is that the third value can be a predefined compensation coefficient. This application does not limit the implementation method or value of the third value. For example, both the first parameter and the third value are compensation values, and the SNR of the first CSI-RS after compensation is the sum of the SNR obtained from measuring the first CSI-RS, the first parameter, and the third value. Another example is that both the first parameter and the third value are compensation coefficients, and the SNR of the first CSI-RS after compensation is the product of the SNR obtained from measuring the first CSI-RS, the first parameter, and the third value. In addition to considering compensation for the first parameter, the SNR of the CSI-RS of this cell can also consider compensation for the third value, thus allowing it to continue camping in this cell as much as possible and reducing the impact of cell handover on communication performance.

[0212] Optionally, the first CSI-RS belongs to the CSI-RS of this cell, and the signal-to-noise ratio (SNR) obtained by measuring the first CSI-RS can satisfy the third condition. The SNR after compensation for the first CSI-RS can be determined by the SNR obtained by measuring the first CSI-RS, the first parameter, and the third value. The third condition can be predefined and is not limited. For example, the third condition can be to meet communication requirements. Another example is that the third condition can be that the SNR obtained by measuring the first CSI-RS is greater than or equal to a predetermined threshold. The embodiments of this application do not limit the implementation form of the third condition. The terminal device can conditionally consider using the third value to compensate for the SNR of the CSI-RS of this cell, in addition to considering the first parameter, thus ensuring the communication performance of this cell and continuing to camp in this cell as much as possible.

[0213] It is understood that the terminal device can send the reception quality and / or signal-to-noise ratio of CSI-RS to the first network device, and the first network device can determine whether to perform cell handover; or, the terminal device itself can also determine whether to perform cell handover based on the reception quality and / or signal-to-noise ratio of CSI-RS. The embodiments of this application do not limit the implementation process of cell handover.

[0214] The following is combined with Figure 6 The application of the first communication method described above to cell reselection scenarios will be introduced.

[0215] Figure 6 This is a flowchart illustrating a second communication method provided in an embodiment of this application. Figure 6 In this context, the first signal is SSB, the second network device is the same as the first network device, and the third network device is a different network device from the first network device. For example... Figure 6 As shown, the method may include the following:

[0216] S601: The first network device generates the first information.

[0217] The first information can be used to indicate (or determine) N parameters, which can be used to compensate for the received power of M SSBs. For details on the implementation process, please refer to the relevant content in S401, which will not be repeated here. For example, the first network device can generate (or acquire, or determine) the first information. In one embodiment, the first network device can acquire the N parameters by measurement and generate the first information based on the N parameters. For example, the first network device can acquire the N parameters by measurement during site deployment (i.e., when deploying network equipment). Alternatively, the first network device can acquire the N parameters by measurement (e.g., sensing measurement) after site deployment (i.e., after the network equipment deployment is completed). In one embodiment, the first network device acquires the N parameters by interacting with other network devices corresponding to the N parameters and generates the first information based on the N parameters. In one embodiment, the N parameters can be predefined.

[0218] S602: The first network device sends first information to the terminal device. Correspondingly, the terminal device receives the first information from the first network device.

[0219] Please refer to the content of S402 for the implementation process of S602, which will not be repeated here.

[0220] S603: The first network device sends P SSBs. Correspondingly, the terminal device receives P SSBs.

[0221] Where P is an integer greater than 0. For example, P can be 2, 4, 8, or 16, etc. The embodiments of this application do not limit the number of SSBs sent by the first network device. For example, the terminal device can determine that the P SSBs are the SSBs of the cell corresponding to the first network device based on the sequence corresponding to the P SSBs and / or the resources carrying the P SSBs.

[0222] S604: The third network device sends Q SSBs. Correspondingly, the terminal device receives Q SSBs.

[0223] Where Q is an integer greater than 0. For example, Q can be 2, 4, 8, or 16, etc. The embodiments of this application do not limit the number of SSBs sent by the third network device. Exemplarily, the terminal device can determine that the Q SSBs are the SSBs of the cell corresponding to the third network device based on the sequence corresponding to the Q SSBs and / or the resources carrying the Q SSBs.

[0224] Next, the terminal device performs cell reselection based on the first information and the received multiple SSBs. This embodiment describes three scenarios (denoted as Scenario 1, Scenario 2, and Scenario 3). Scenario 1 involves deploying a UL Only node only in the local cell, or in other words, deploying a UL Only node only on the first network device, executing steps S605 and S606. Scenario 2 involves deploying a UL Only node only in neighboring cells, or in other words, deploying a UL Only node only on the third network device, executing steps S607 and S608. Scenario 3 involves deploying UL Only nodes in both the local cell and neighboring cells, or in other words, deploying UL Only nodes only on both the first and third network devices, executing steps S609 and S610. In other words, S605 and S606, S607 and S608, and S609 and S610 are parallel steps. Figure 6 The text is represented by a dashed box.

[0225] S605: The terminal device determines the received power after compensation for P SSBs based on the first information.

[0226] In Scenario 1, only UL-only nodes are deployed within the local cell. For example, the terminal device can determine the received power after compensation for P SSBs based on the first information. The received power after compensation for the P SSBs is determined by measuring the received power of the P SSBs and N parameters. For example, N is 1, and the N parameters are associated with the local cell. The terminal device can determine the received power after compensation for the P SSBs based on the N parameters. For instance, the P SSBs are denoted as SSB1, SSB2, SSB3, and SSB4. The compensation value associated with the local cell is 2dB. The received power measured for the P SSBs is 5dB, 6dB, 7dB, and 4dB, respectively. The received power after compensation for SSB1 is 7dB, for SSB2 it is 8dB, for SSB3 it is 9dB, and for SSB4 it is 6dB.

[0227] In the example above, N is 1, and N parameters are associated with this cell. The terminal device can determine the received power after compensation for P SSBs based on the first information. Figure 6The S605 example illustrates how a terminal device determines the compensated received power of P SSBs based on the first information. In another possible implementation, N parameters can also be associated with at least one SSB in the cell. The terminal device can determine the compensated received power of at least one of the P SSBs based on the N parameters. For example, the N parameters represent N compensation values, and the P SSBs are denoted as SSB1, SSB2, SSB3, and SSB4. The compensation value associated with SSB1 is 4dB, the compensation values ​​associated with SSB2 and SSB3 are 1dB, and the compensation value associated with SSB4 is 0dB. The received power obtained by measuring these P SSBs is, in sequence, 5dB, 6dB, 7dB, and 4dB. The compensated received power of SSB1 is 9dB, the compensated received power of SSB2 is 7dB, the compensated received power of SSB3 is 8dB, and the compensated received power of SSB4 is 4dB (or referred to as the uncompensated received power of SSB4).

[0228] In another possible implementation, the N parameters can also be associated with at least one sequence. The terminal device can determine the compensated received power of at least one of the P SSBs based on the N parameters. The sequence that generates at least one SSB belongs to at least one sequence associated with the N parameters. For example, the N parameters are N compensation values, and the P SSBs are denoted as SSB1, SSB2, SSB3, and SSB4. The compensation value associated with sequence 1 is 1dB, and the compensation value associated with sequence 2 is 3dB. The received power obtained by measuring the P SSBs is 5dB, 6dB, 7dB, and 4dB, respectively. Assuming that SSB1 is generated based on sequence 1, SSB2 is generated based on sequence 2, and the sequences that generate SSB3 and SSB4 are not sequences 1 and 2, then the compensated received power of SSB1 is 6dB, the compensated received power of SSB2 is 9dB, and the received power of SSB3 and SSB4 does not need compensation. Alternatively, assuming SSB1 and SSB3 are generated based on sequence 1, and SSB2 and SSB4 are generated based on sequence 2, then the compensated received power of SSB1 is 6dB, the compensated received power of SSB2 is 9dB, the compensated received power of SSB3 is 8dB, and the compensated received power of SSB4 is 7dB.

[0229] In another possible implementation, the N parameters can also be associated with at least one resource. The terminal device can determine the compensated received power of at least one of the P SSBs based on the N parameters. The resource carrying the at least one SSB belongs to at least one resource associated with the N parameters. For example, the N parameters are N compensation values, and the P SSBs are denoted as SSB1, SSB2, SSB3, and SSB4. The compensation value associated with resource 1 is 1dB, and the compensation value associated with resource 2 is 3dB. The received power obtained by measuring the P SSBs is 5dB, 6dB, 7dB, and 4dB, respectively. Assuming that SSB1 is generated based on resource 1, SSB2 is generated based on resource 2, and the resources that generate SSB3 and SSB4 are not resources 1 and 2, then the compensated received power of SSB1 is 6dB, the compensated received power of SSB2 is 9dB, and the received power of SSB3 and SSB4 does not need compensation. Alternatively, assuming SSB1 and SSB3 are generated based on resource 1, and SSB2 and SSB4 are generated based on resource 2, then the compensated received power of SSB1 is 6dB, the compensated received power of SSB2 is 9dB, the compensated received power of SSB3 is 8dB, and the compensated received power of SSB4 is 7dB.

[0230] It is understandable that the implementation methods for associating N parameters with two or more of the following: the cell, at least one sequence, and at least one resource, can refer to the above content. Additionally, for the implementation methods where N parameters are N compensation coefficients, please refer to the implementation methods where N parameters are compensation values. These will not be listed individually here.

[0231] Optionally, the received power after compensation for P SSBs can be determined by the measured received power, N parameters, and a first value; or, a portion of the received power after compensation for P SSBs can be determined by the measured received power, N parameters, and a first value, while the remaining portion can be determined by the measured received power and the first value. For example, the N parameters are N compensation values, and the P SSBs are denoted as SSB1, SSB2, SSB3, and SSB4. The N compensation values ​​are associated with SSB1 and SSB2 in this cell. The compensation value associated with SSB1 is 5dB, the compensation value associated with SSB2 is 3dB, and the first value is 1dB. The received power obtained by measuring these P SSBs is, in order, 5dB, 6dB, 7dB, and 4dB. The received power after compensation for SSB1 is 10dB, the received power after compensation for SSB2 is 9dB, the received power after compensation for SSB3 is 8dB, and the received power after compensation for SSB4 is 5dB. S606: The terminal device determines the cell to camp on based on the received power after compensation of P SSBs and the received power of Q SSBs.

[0232] The terminal device can determine the cell to camp on based on the received power after compensation for P SSBs and the received power of Q SSBs. The received power of the Q SSBs can be understood as the received power obtained by measuring the Q SSBs. If the SSB with the highest received power among the compensated received power of P SSBs and the received power of Q SSBs belongs to the current cell, the terminal device continues to camp on this cell; for example, the terminal device determines that the cell to camp on is the current cell. Alternatively, if the SSB with the highest received power among the compensated received power of P SSBs and the received power of Q SSBs belongs to a neighboring cell, the terminal device determines that the cell to camp on is a neighboring cell; for example, the terminal device initiates a random access procedure. This embodiment of the application does not limit this approach.

[0233] For example, let P SSBs be denoted as SSB1, SSB2, SSB3, and SSB4, and Q SSBs be denoted as SSB5, SSB6, SSB7, and SSB8. The compensation value associated with this cell is 2dB. The received power measured by these P SSBs is 5dB, 6dB, 7dB, and 4dB, respectively. The received power after compensation for these P SSBs is 7dB, 8dB, 9dB, and 6dB, respectively. Assuming the received power measured by these Q SSBs is 7dB, 3dB, 5dB, and 8dB, and the maximum received power among the eight SSBs is 9dB, meaning SSB3 in this cell has the highest received power, the terminal device continues to camp on this cell; that is, the terminal device determines that it is camping on this cell. Alternatively, suppose the received power of the Q SSBs is measured as follows: 7dB, 10dB, 5dB, and 8dB respectively. The maximum received power among the eight SSBs is 10dB, meaning that the SSB6 of the neighboring cell has the highest received power. The terminal device then determines that the cell it is camping on is the neighboring cell.

[0234] Figure 6 S606 illustrates an example where the terminal device determines the cell to camp on based on the received power of P SSBs after compensation and the received power of Q SSBs. In another possible implementation, the terminal device can compensate the received power of some of the P SSBs. Then, the terminal device can determine the cell to camp on based on the received power of some of the P SSBs after compensation, the received power of the remaining P SSBs, and the received power of Q SSBs. The implementation process is detailed above and will not be repeated here.

[0235] S607: The terminal device determines the received power after Q SSB compensation based on the first information.

[0236] In Scenario 2, UL Only nodes are deployed only in neighboring cells (i.e., the cell corresponding to the third network device). For example, the terminal device can determine the received power after compensation for Q SSBs based on the first information. The received power after compensation for the Q SSBs is determined by measuring the received power of the Q SSBs and N parameters. For example, N is 1, and the N parameters are associated with neighboring cells (i.e., the cell corresponding to the third network device). The terminal device can determine the received power after compensation for the Q SSBs based on the N parameters.

[0237] In the example above, N is 1, and the N parameters are associated with the cell corresponding to the third network device. The terminal device can determine the received power after compensation of Q SSBs based on the first information. Figure 6 Example S607 illustrates how a terminal device determines the compensated received power of Q SSBs based on the first information. In another possible implementation, the N parameters can also be associated with at least one SSB in a neighboring cell, allowing the terminal device to determine the compensated received power of at least one SSB based on the N parameters. In yet another possible implementation, the N parameters can also be associated with at least one sequence, allowing the terminal device to determine the compensated received power of at least one SSB among the Q SSBs based on the N parameters, and the sequence that generates at least one SSB belongs to at least one sequence associated with the N parameters. In yet another possible implementation, the N parameters can also be associated with at least one resource, allowing the terminal device to determine the compensated received power of at least one SSB among the Q SSBs based on the N parameters, and the resource carrying the at least one SSB belongs to at least one resource associated with the N parameters. For a detailed implementation process, please refer to the relevant content in S605, which will not be repeated here.

[0238] S608: The terminal device determines the cell to camp on based on the received power of P SSBs and the received power of Q compensated SSBs.

[0239] The terminal device can determine the cell to camp on based on the received power of P SSBs and the compensated received power of Q SSBs. The received power of the P SSBs can be understood as the received power obtained by measuring the P SSBs. If the SSB with the highest received power among the compensated received power of the Q SSBs and the received power of the P SSBs belongs to the current cell, the terminal device continues to camp on that cell. Alternatively, if the SSB with the highest received power among the compensated received power of the Q SSBs and the received power of the P SSBs belongs to a neighboring cell, the terminal device determines the neighboring cell as the cell to camp on, for example, by initiating a random access procedure. This embodiment of the application does not limit this. For the specific implementation process, please refer to the relevant content of S606, which will not be repeated here.

[0240] Figure 6S608 illustrates an example where the terminal device determines the cell to camp on based on the received power of P SSBs and the received power of Q compensated SSBs. In another possible implementation, the terminal device can compensate for the received power of some of the Q SSBs. Then, the terminal device can determine the cell to camp on based on the received power of the P SSBs, the compensated received power of some of the Q SSBs, and the received power of the remaining Q SSBs. The implementation process is detailed above and will not be repeated here.

[0241] S609: The terminal device determines the P compensated received power and the Q SSB compensated received power based on the first information.

[0242] In scenario 3, both the local cell and the neighboring cell (i.e., the cell corresponding to the third network device) deploy UL Only nodes. For example, the terminal device can determine the received power after compensation for P SSBs and the received power after compensation for Q SSBs based on the first information. For the specific implementation process, please refer to S605 and S607, which will not be repeated here.

[0243] S610: The terminal device determines the cell to camp on based on the received power after compensation for P SSBs and the received power after compensation for Q SSBs.

[0244] The terminal device can determine the cell to camp on based on the received power after compensation for P SSBs and the received power after compensation for Q SSBs. Specifically, if the SSB with the highest received power among the received power after compensation for P SSBs and Q SSBs belongs to the current cell, the terminal device continues to camp on that cell. Alternatively, if the SSB with the highest received power among the received power after compensation for P SSBs and Q SSBs belongs to a neighboring cell, the terminal device determines that the cell to camp on is a neighboring cell. This embodiment does not limit this. For the specific implementation process, please refer to the relevant content of S606, which will not be repeated here.

[0245] Figure 6 Examples of S609 and S610 illustrate this by having the terminal device determine the compensated received power of P SSBs and Q SSBs based on the first information, and then determine the cell to camp on based on these compensated received power values. In another possible implementation, the terminal device can also compensate the received power of some of the P SSBs and some of the Q SSBs based on the first information. The implementation process can be found in the aforementioned related content and will not be repeated here.

[0246] Figure 6The execution order of the steps shown is merely an example and is not limited to this. For example, the first network device sends P SSBs first, and then the third network device sends Q SSBs; or, the third network device sends Q SSBs first, and then the first network device sends P SSBs; or, the first network device and the third network device may send SSBs simultaneously.

[0247] The following is combined with Figure 7 The application of the first communication method described above to cell handover scenarios will be introduced.

[0248] Figure 7 This is a flowchart illustrating the third communication method provided in an embodiment of this application. Figure 7 In this context, the second signal is CSI-RS, the second network device is the same as the first network device, and the third network device is a different network device from the first network device. For example... Figure 7 As shown, the method may include the following:

[0249] S701: The first network device generates the first information.

[0250] The first information can be used to indicate (or determine) N parameters, which can be used to compensate for the reception quality of K CSI-RS. For the specific implementation process, please refer to the relevant content of S401, which will not be repeated here.

[0251] S702: The first network device sends first information to the terminal device. Correspondingly, the terminal device receives the first information from the first network device.

[0252] The implementation process of S702 is described in S402 and will not be repeated here.

[0253] S703: The first network device sends W CSI-RS. Correspondingly, the terminal device receives W CSI-RS.

[0254] Where W is an integer greater than 0. For example, W can be 2, 4, 8, 16, 32, or 64, etc. The embodiments of this application do not limit the number of CSI-RS sent by the first network device. For example, the terminal device can determine that the W CSI-RS are the CSI-RS of the cell corresponding to the first network device based on the sequence corresponding to the W CSI-RS and / or the resources carrying the W CSI-RS.

[0255] S704: The third network device sends T CSI-RS. Correspondingly, the terminal device receives T CSI-RS.

[0256] S704 is an optional step. Figure 7The dashed line indicates that the terminal device may or may not support receiving CSI-RS from neighboring cells. Figure 7 The example shown is that the terminal equipment supports receiving CSI-RS from neighboring cells.

[0257] Where T is an integer greater than 0. For example, T can be 2, 4, 8, 16, 32, or 64, etc. The embodiments of this application do not limit the number of CSI-RS sent by the third network device. For example, the terminal device can determine that the T CSI-RS are the CSI-RS of the cell corresponding to the third network device based on the sequence corresponding to the T CSI-RS and / or the resources carrying the T CSI-RS.

[0258] Next, we will describe three scenarios (denoted as Scenario 1, Scenario 2, and Scenario 3). Scenario 1 involves deploying a UL Only node only in the local cell, or in other words, deploying a UL Only node only on the first network device, executing steps S705 and S706. Scenario 2 involves deploying a UL Only node only in a neighboring cell, or in other words, deploying a UL Only node only on the third network device, executing steps S707 and S708. Scenario 3 involves deploying UL Only nodes in both the local cell and neighboring cells, or in other words, deploying a UL Only node only on both the first and third network devices, executing steps S709 and S710. In other words, S705 and S706, S707 and S708, and S709 and S710 are parallel steps. Figure 7 The text is represented by a dashed box.

[0259] S705: The terminal device determines the reception quality after W CSI-RS compensation based on the first information.

[0260] In Scenario 1, only UL-only nodes are deployed within this cell. For example, the terminal device can determine the reception quality after compensation by W CSI-RS based on first information. The reception quality after compensation by W CSI-RS is determined by measuring the reception quality of the W CSI-RS and N parameters. For example, N is 1, and the N parameters are associated with this cell; the terminal device can determine the reception quality after compensation by W CSI-RS based on the N parameters.

[0261] Figure 7S705 illustrates an example where the terminal device determines the received quality after compensation for W CSI-RSs based on the first information. In another possible implementation, the N parameters can also be associated with at least one CSI-RS in the cell, allowing the terminal device to determine the received quality after compensation for at least one of the W CSI-RSs based on the N parameters. In another possible implementation, the N parameters can also be associated with at least one sequence, allowing the terminal device to determine the received quality after compensation for at least one of the W CSI-RSs based on the N parameters, and the sequence that generates at least one CSI-RS belongs to at least one sequence associated with the N parameters. In yet another possible implementation, the N parameters can also be associated with at least one resource, allowing the terminal device to determine the received quality after compensation for at least one of the W CSI-RSs based on the N parameters, and the resource carrying the at least one CSI-RS belongs to at least one resource associated with the N parameters.

[0262] Optionally, the reception quality after W CSI-RS compensation can be determined by the measured reception quality, N parameters, and a second value; or, a portion of the reception quality after W CSI-RS compensation can be determined by the measured reception quality, N parameters, and a second value, while the remaining portion can be determined by the measured reception quality and a second value.

[0263] The implementation process of S705 can be referred to the description of S605, and will not be repeated here.

[0264] S706: The terminal device sends the received quality after W CSI-RS compensation and the received quality after T CSI-RS to the first network device. Correspondingly, the first network device receives the received quality after W CSI-RS compensation and the received quality after T CSI-RS from the terminal device.

[0265] The reception quality of T CSI-RS can be understood as the reception quality obtained by measuring those T CSI-RS.

[0266] Optionally, the first network device may determine whether to perform cell handover based on the reception quality after compensation by W CSI-RS and the reception quality of T CSI-RS. This application embodiment does not limit the determination of whether to perform cell handover or the implementation process of cell handover.

[0267] Figure 7S706 illustrates an example where the terminal device sends the received quality of W CSI-RS after compensation and the received quality of T CSI-RS to the first network device. In another possible implementation, the terminal device can compensate for the received quality of a portion of the W CSI-RS. In this case, the terminal device can send the received quality of a portion of the W CSI-RS after compensation, the received quality of the remaining W CSI-RS, and the received quality of T CSI-RS to the first network device. The implementation process is detailed above and will not be repeated here. Alternatively, the terminal device can determine whether to perform cell handover based on the received quality of the W CSI-RS after compensation and the received quality of T CSI-RS. This application does not limit the terminal device's determination of whether to perform cell handover or the implementation process of cell handover.

[0268] The implementation process of S706 can be referred to the relevant description of S606, and will not be repeated here.

[0269] S707: The terminal device determines the reception quality after T CSI-RS compensation based on the first information.

[0270] In Scenario 2, UL Only nodes are deployed only in neighboring cells (i.e., the cell corresponding to the third network device). For example, the terminal device can determine the reception quality after T CSI-RS compensation based on the first information. The reception quality after T CSI-RS compensation is determined by measuring the reception quality obtained from at least one CSI-RS and N parameters. For example, N is 1, and the N parameters are associated with neighboring cells; the terminal device can determine the reception quality after T CSI-RS compensation based on the N parameters.

[0271] Figure 7 S707 illustrates an example where the terminal device determines the received quality after compensation for T CSI-RSs based on the first information. In another possible implementation, the N parameters can also be associated with at least one CSI-RS in a neighboring cell, allowing the terminal device to determine the received quality after compensation for at least one of the T CSI-RSs based on the N parameters. In yet another possible implementation, the N parameters can also be associated with at least one sequence, allowing the terminal device to determine the received quality after compensation for at least one of the T CSI-RSs based on the N parameters, and the sequence that generates at least one CSI-RS belongs to at least one sequence associated with the N parameters. In yet another possible implementation, the N parameters can also be associated with at least one resource, allowing the terminal device to determine the received quality after compensation for at least one of the T CSI-RSs based on the N parameters, and the resource carrying the at least one CSI-RS belongs to at least one resource associated with the N parameters.

[0272] The implementation process of S707 can be referred to the relevant description of S607, and will not be repeated here.

[0273] S708: The terminal device sends the reception quality of W CSI-RS and the reception quality of T compensated CSI-RS to the first network device. Correspondingly, the first network device receives the reception quality of W CSI-RS and the reception quality of T compensated CSI-RS from the terminal device.

[0274] The reception quality of W CSI-RS can be understood as the reception quality obtained by measuring these W CSI-RS.

[0275] Optionally, the first network device may determine whether to perform cell handover based on the reception quality of W CSI-RS and the reception quality of T compensated CSI-RS. This application embodiment does not limit the determination of whether to perform cell handover or the implementation process of cell handover.

[0276] Figure 7 S708 illustrates an example where the terminal device sends the reception quality of W CSI-RS and the compensated reception quality of T CSI-RS to the first network device. In another possible implementation, the terminal device can compensate for the reception quality of a portion of the T CSI-RS. In this case, the terminal device can send the reception quality of W CSI-RS, the compensated reception quality of a portion of the T CSI-RS, and the reception quality of the remaining T CSI-RS to the first network device. The implementation process is detailed above and will not be repeated here. Alternatively, the terminal device can determine whether to perform cell handover based on the reception quality of W CSI-RS and the compensated reception quality of T CSI-RS. This application does not limit the terminal device's determination of whether to perform cell handover or the implementation process of cell handover.

[0277] The implementation process of S708 can be referred to the relevant description of S608, and will not be repeated here.

[0278] S709: The terminal device determines the W compensated reception quality and the T CSI-RS compensated reception quality based on the first information.

[0279] In scenario 3, both the local cell and the neighboring cell (i.e., the cell corresponding to the third network device) deploy UL Only nodes. For example, the terminal device can determine the reception quality after W CSI-RS compensation and the reception quality after T CSI-RS compensation based on the first information. For the specific implementation process, please refer to the content of S705 and S707, which will not be repeated here.

[0280] S710: The terminal device sends the received quality of W CSI-RS after compensation and the received quality of T CSI-RS after compensation to the first network device. Correspondingly, the first network device receives the received quality of W CSI-RS after compensation and the received quality of T CSI-RS after compensation from the terminal device.

[0281] Optionally, the first network device may determine whether to perform cell handover based on the reception quality of W compensated CSI-RS and T compensated CSI-RS. This application embodiment does not limit the determination of whether to perform cell handover and the implementation process of cell handover.

[0282] Figure 7 In S709 and S710, the terminal device determines the reception quality of W CSI-RS after compensation and T CSI-RS after compensation based on the first information, and determines the cell to camp on based on the reception quality of W CSI-RS after compensation and T CSI-RS. In another possible implementation, the terminal device can also compensate the reception quality of some of the W CSI-RS and some of the T CSI-RS based on the first information. The implementation process can be referred to the aforementioned related content and will not be repeated here. In another possible implementation, the terminal device can determine whether to perform cell handover based on the reception quality of W CSI-RS after compensation and T CSI-RS. This application embodiment does not limit the terminal device's determination of whether to perform cell handover and the implementation process of cell handover.

[0283] It is understandable that the implementation process of using these N parameters to compensate for the signal-to-noise ratio of K CSI-RS, as well as the implementation process of using these N parameters to compensate for the reception quality and signal-to-noise ratio of K CSI-RS, can be referred to the description of the third communication method above, and will not be repeated here.

[0284] Figure 7 The execution order of the steps shown is for illustrative purposes only and is not limited thereto. For example, the first network device may send W CSI-RS first, and then the third network device may send T CSI-RS; or, the third network device may send T CSI-RS first, and then the first network device may send W CSI-RS; or, the first network device and the third network device may send CSI-RS simultaneously.

[0285] The embodiments provided in this application describe the methods provided by the embodiments of this application from the perspective of interaction between multiple communication devices (e.g., terminal devices and first network devices). The steps performed by the communication devices (e.g., terminal devices or first network devices) can be implemented by different functional entities that make up the communication devices. The communication devices (e.g., terminal devices or first network devices) may include hardware structures and / or software modules, implementing the above functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular function is implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0286] The communication device used to implement the above method in the embodiments of this application is described below with reference to the accompanying drawings. Therefore, the content above can be used in subsequent embodiments, and repeated content will not be described again.

[0287] Figure 8 A schematic diagram of a communication device 800 provided in an embodiment of this application is shown as an example. This communication device 800 can implement the functions or steps implemented by the terminal device or the first network device in the various method embodiments described above.

[0288] For example, when the communication device 800 is used to implement the functions or steps implemented by the terminal device in the above method embodiments, the communication device 800 may be the terminal device or a component in the terminal device.

[0289] For example, when the communication device 800 is used to implement the functions or steps implemented by the first network device in the above-described method embodiments, the communication device 800 may be the first network device or a component in the first network device (e.g., DU and / or RU, etc.).

[0290] In one embodiment, the communication device 800 may include a processing module 801 and a transceiver module 802; or it may include a processing module 801 but not a transceiver module 802; or it may include a transceiver module 802 but not a processing module 801. Wherein:

[0291] The processing module 801 can be used to support the communication device 800 in performing the processing actions in the above method embodiments. The processing module 801 can be implemented using one or more processors. For example, the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), microprocessors (MCUs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0292] In this application, the processing module 801 may also be referred to as a processing unit, etc., without limitation.

[0293] Transceiver module 802 is used for inputting and / or outputting information. Input information can be replaced by received information, and output information can be replaced by transmitted information. When outputting information, transceiver module 802 can output information to other devices outside of communication device 800, or to other units within communication device 800. In some embodiments, transceiver module 802 can be implemented through at least one of a physical interface, a communication module, a communication interface, and an input / output interface. In other embodiments, transceiver module 802 can be implemented through interface circuitry, such as a mobile communication module. The mobile communication module may include one or more of at least one antenna, at least one filter, a switch, a power amplifier, and a low-noise amplifier (LNA).

[0294] Optionally, the transceiver module 802 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments. It should be noted that the communication device 800 may include a sending module but not a receiving module. Alternatively, the communication device 800 may include a receiving module but not a sending module. Specifically, it depends on whether the above scheme performed by the communication device 800 includes sending and receiving actions.

[0295] In this application, the transceiver module 802 may also be referred to as a communication interface, a communication module, a transceiver unit, an interface module, an interface unit, or a communication unit, etc., without limitation.

[0296] It should be noted that the communication device 800 may include a processing module 801, but not a transceiver module 802. Alternatively, the communication device 800 may include a transceiver module 802, but not a processing module 801. Specifically, it depends on whether the above-described scheme executed by the communication device 800 includes processing and transceiver actions.

[0297] Optionally, the communication device 800 may further include a storage module. Figure 8 Not shown in the diagram. The storage module can be used to store instructions and / or data, and the processing module 801 can read the instructions and / or data from the storage module to enable the communication device 800 to implement the aforementioned method embodiment.

[0298] Optionally, the communication device 800 may be a chip system, the transceiver module 802 may be the input / output interface of the chip (e.g., a baseband chip), and the processing module 801 may be the processor of the chip system.

[0299] In one possible design, when the communication device 800 is a communication equipment or a communication module within a communication equipment, the functionality of the processing module 801 can be implemented by one or more processors. For example, the processor may include a modem chip (also known as a baseband chip), or a system-on-a-chip (SoC) chip or system-in-package (SIP) chip containing a modem core. The functionality of the transceiver module 802 can be implemented by transceiver circuitry. The communication equipment can be a terminal device or a network device.

[0300] In one possible design, when the communication device 800 is a circuit or chip responsible for communication functions in a communication device, such as a modem chip or a SoC chip or SIP chip containing a modem core, the function of the processing module 801 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the transceiver module 802 can be implemented by the interface circuit or data transceiver circuit on the aforementioned chip. The communication device can be a terminal device or a network device.

[0301] In a first implementation, the communication device 800 can perform the functions of a terminal device, executing the following: a transceiver module 802, configured to receive first information from a first network device, the first information being used to indicate a first parameter and / or a second parameter; wherein the first parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located, compensating for the received quality of all or part of the second signal in the first cell where the first node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located; the second parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located; wherein the transmission between the first node and the terminal device includes only uplink transmission, and the transmission between the second node and the terminal device includes only uplink transmission.

[0302] Optionally, the first signal can be an SSB, or other downlink signal, without limitation. Optionally, the second signal can be a CSI-RS, or other downlink signal, without limitation.

[0303] Optionally, the first parameter is used to compensate for all or part of the received power of the first signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the received power of the first signal in the second network device connected to the first node. The first parameter is used to compensate for all or part of the received quality of the second signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the received quality of the second signal in the second network device connected to the first node. The first parameter is used to compensate for the signal-to-noise ratio (SNR) of the second signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the SNR of the second signal in the second network device connected to the first node.

[0304] Optionally, the second parameter is used to compensate for all or part of the received power of the first signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the received power of the first signal in the third network device connected to the second node. The second parameter is used to compensate for all or part of the received quality of the second signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the received quality of the second signal in the third network device connected to the second node. The second parameter is used to compensate for the signal-to-noise ratio (SNR) of the second signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the SNR of the second signal in the third network device connected to the second node.

[0305] Optionally, both the first and second nodes can be UL Only nodes.

[0306] In one possible implementation, the first cell may be a cell corresponding to a second network device connected to the first node, wherein the second network device may be the first network device, or the second network device and the first network device may be different network devices; and / or, the second cell may be a cell corresponding to a third network device connected to the second node, wherein the third network device and the second network device may be different network devices.

[0307] In one possible implementation, the first parameter may be associated with at least one of the following: the first cell, the first sequence, or the first resource; and / or, the second parameter may be associated with at least one of the following: the second cell, the second sequence, or the second resource.

[0308] For example, the first parameter associated with the first cell can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of part or all of the SSBs of the first cell, compensating for the received quality of part or all of the CSI-RS of the first cell, or compensating for the signal-to-noise ratio of part or all of the CSI-RS of the first cell. For example, the first parameter associated with the first sequence can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of the SSBs generated based on the first sequence, compensating for the received quality of the CSI-RS generated based on the first sequence, or compensating for the signal-to-noise ratio of the CSI-RS generated based on the first sequence. For example, the first parameter associated with the first resource can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of the SSBs carried by the first resource, compensating for the received quality of the CSI-RS carried by the first resource, or compensating for the signal-to-noise ratio of the CSI-RS carried by the first resource.

[0309] For example, the second parameter associated with the second cell can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of part or all of the SSBs of the second cell, compensating for the received quality of part or all of the CSI-RS of the second cell, or compensating for the signal-to-noise ratio of part or all of the CSI-RS of the second cell. For example, the second parameter associated with the second sequence can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of the SSBs generated based on the second sequence, compensating for the received quality of the CSI-RS generated based on the second sequence, or compensating for the signal-to-noise ratio of the CSI-RS generated based on the second sequence. For example, the second parameter associated with the second resource can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of the SSBs carried by the second resource, compensating for the received quality of the CSI-RS carried by the second resource, or compensating for the signal-to-noise ratio of the CSI-RS carried by the second resource.

[0310] In one possible implementation, the first signal may be an SSB, and the first parameter associated with the first cell may include: the first parameter being associated with a first SSB of the first cell, wherein the first SSB belongs to all or part of the first signal of the first cell where the first node is located; and / or, the second parameter being associated with the second cell may include: the second parameter being associated with a second SSB of the second cell, wherein the second SSB belongs to all or part of the first signal of the second cell where the second node is located.

[0311] In one possible implementation, the second signal may be a CSI-RS, and the first parameter associated with the first cell may include: the first parameter being associated with a first CSI-RS of the first cell, wherein the first CSI-RS belongs to all or part of the second signals of the first cell where the first node is located; and / or, the second parameter being associated with the second cell may include: the second parameter being associated with a second CSI-RS of the second cell, wherein the second CSI-RS belongs to all or part of the second signals of the second cell where the second node is located.

[0312] In one possible implementation, processing module 801 is configured to perform cell reselection based on the first information; and / or, processing module 801 is configured to perform cell handover based on the first information.

[0313] In one possible implementation, the first signal is the SSB, which is used when performing cell reselection based on the first information:

[0314] The first information is used to indicate the first parameter, which is used to compensate for the received power of all or part of the first signal in the first cell where the first node is located. The transceiver module 802 is used to receive the first SSB, which belongs to all or part of the first signal in the first cell where the first node is located. The processing module 801 is used to determine the cell to camp on based on the received power after compensation of the first SSB, wherein the received power after compensation of the first SSB is determined by measuring the received power of the first SSB and the first parameter.

[0315] Alternatively, the first information is used to indicate the second parameter, which is used to compensate for the received power of all or part of the first signal in the second cell where the second node is located. The transceiver module 802 is used to receive the second SSB, which belongs to all or part of the first signal in the second cell where the second node is located. The processing module 801 is used to determine the cell to camp on based on the received power after compensation of the second SSB, wherein the received power after compensation of the second SSB is determined by measuring the received power of the second SSB and the second parameter.

[0316] Alternatively, the first information is used to indicate the first parameter and the second parameter, the first parameter is used to compensate for all or part of the received power of the first signal in the first cell where the first node is located, and the second parameter is used to compensate for all or part of the received power of the first signal in the second cell where the second node is located. The transceiver module 802 is used to receive the first SSB and the second SSB, wherein the first SSB belongs to all or part of the first signal in the first cell where the first node is located, and the second SSB belongs to all or part of the first signal in the second cell where the second node is located. The processing module 801 is used to determine the cell to camp on based on the received power after compensation of the first SSB and the received power after compensation of the second SSB, wherein the received power after compensation of the first SSB is determined by measuring the received power obtained from the first SSB and the first parameter, and the received power after compensation of the second SSB is determined by measuring the received power obtained from the second SSB and the second parameter.

[0317] In one possible implementation, the first cell is the cell corresponding to the second network device, the second network device is the first network device, and the received power after the first SSB compensation is determined by the received power obtained by measuring the first SSB and the first parameter, which may include: the received power after the first SSB compensation is determined by the received power obtained by measuring the first SSB, the first parameter, and the first value.

[0318] In one possible implementation, the received power obtained by measuring the first SSB can satisfy the first condition.

[0319] In one possible implementation, the second signal is CSI-RS, which is used when performing cell handover based on the first information:

[0320] The first information is used to indicate the first parameter, which is used to compensate for the reception quality of all or part of the second signal in the first cell where the first node is located. The transceiver module 802 is used to receive the first CSI-RS, which belongs to all or part of the second signal in the first cell where the first node is located; and to send the reception quality after the first CSI-RS compensation to the first network device, wherein the reception quality after the first CSI-RS compensation is determined by the reception quality obtained by measuring the first CSI-RS and the first parameter.

[0321] Alternatively, the first information is used to indicate the second parameter, which is used to compensate for the reception quality of all or part of the second signal in the second cell where the second node is located. The transceiver module 802 is used to receive the second CSI-RS, which belongs to all or part of the second signal in the second cell where the second node is located; and to send the reception quality after compensation for the second CSI-RS to the first network device, wherein the reception quality after compensation for the second CSI-RS is determined by the reception quality obtained by measuring the second CSI-RS and the second parameter.

[0322] Alternatively, the first information is used to indicate the first parameter and the second parameter, the first parameter is used to compensate for the reception quality of all or part of the second signal in the first cell where the first node is located, and the second parameter is used to compensate for the reception quality of all or part of the second signal in the second cell where the second node is located. The transceiver module 802 is used to receive the first CSI-RS and the second CSI-RS, wherein the first CSI-RS belongs to all or part of the second signal in the first cell where the first node is located, and the second CSI-RS belongs to all or part of the second signal in the second cell where the second node is located; and to send the reception quality after the first CSI-RS compensation and the reception quality after the second CSI-RS compensation to the first network device, wherein the reception quality after the first CSI-RS compensation is determined by the reception quality obtained by measuring the first CSI-RS and the first parameter, and the reception quality after the second CSI-RS compensation is determined by the reception quality obtained by measuring the second CSI-RS and the second parameter.

[0323] In one possible implementation, the first cell is the cell corresponding to the second network device, the second network device is the first network device, and the reception quality after the first CSI-RS compensation is determined by the reception quality obtained by measuring the first CSI-RS and the first parameter, which may include: the reception quality after the first CSI-RS compensation is determined by the reception quality obtained by measuring the first CSI-RS, the first parameter, and the second value.

[0324] In one possible implementation, the reception quality obtained by measuring the first CSI-RS can satisfy the second condition.

[0325] In one possible implementation, the second signal is CSI-RS, which is used when performing cell handover based on the first information:

[0326] The first information is used to indicate the first parameter, which is used to compensate for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located. The transceiver module 802 is used to receive the first CSI-RS, which belongs to all or part of the second signal in the first cell where the first node is located; and to send the signal-to-noise ratio after compensation of the first CSI-RS to the first network device, wherein the signal-to-noise ratio after compensation of the first CSI-RS is determined by measuring the signal-to-noise ratio of the first CSI-RS and the first parameter.

[0327] Alternatively, the first information is used to indicate the second parameter, which is used to compensate for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located. The transceiver module 802 is used to receive the second CSI-RS, which belongs to all or part of the second signal in the second cell where the second node is located; and to send the signal-to-noise ratio after compensation of the second CSI-RS to the first network device, wherein the signal-to-noise ratio after compensation of the second CSI-RS is determined by measuring the signal-to-noise ratio of the second CSI-RS and the second parameter.

[0328] Alternatively, the first information is used to indicate the first parameter and the second parameter, the first parameter is used to compensate for the signal-to-noise ratio (SNR) of all or part of the second signal in the first cell where the first node is located, and the second parameter is used to compensate for the SNR of all or part of the second signal in the second cell where the second node is located. The transceiver module 802 is used to receive a first CSI-RS and a second CSI-RS, wherein the first CSI-RS belongs to all or part of the second signal in the first cell where the first node is located, and the second CSI-RS belongs to all or part of the second signal in the second cell where the second node is located; and to send the SNR after compensation for the first CSI-RS and the SNR after compensation for the second CSI-RS to the first network device, wherein the SNR after compensation for the first CSI-RS is determined by the SNR obtained by measuring the first CSI-RS and the first parameter, and the SNR after compensation for the second CSI-RS is determined by the SNR obtained by measuring the second CSI-RS and the second parameter.

[0329] In one possible implementation, the first cell is the cell corresponding to the second network device, the second network device is the first network device, and the signal-to-noise ratio after the first CSI-RS compensation is determined by the signal-to-noise ratio obtained by measuring the first CSI-RS and the first parameter, which may include: the signal-to-noise ratio after the first CSI-RS compensation is determined by the signal-to-noise ratio obtained by measuring the first CSI-RS, the first parameter, and a third value.

[0330] In one possible implementation, the signal-to-noise ratio obtained by measuring the first CSI-RS can satisfy the third condition.

[0331] In the second implementation, the communication device 800 can perform the functions of the first network device, executing the following: a processing module 801, used to generate first information, the first information being used to indicate a first parameter and / or indicate a second parameter; wherein, the first parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located, compensating for the received quality of all or part of the second signal in the first cell where the first node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located; the second parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located; the transmission between the first node and the terminal device includes only uplink transmission, and the transmission between the second node and the terminal device includes only uplink transmission; a transceiver module 802, used to send the first information to the terminal device.

[0332] Optionally, the first signal can be an SSB, or other downlink signal, without limitation. Optionally, the second signal can be a CSI-RS, or other downlink signal, without limitation.

[0333] Optionally, the first parameter is used to compensate for all or part of the received power of the first signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the received power of the first signal in the second network device connected to the first node. The first parameter is used to compensate for all or part of the received quality of the second signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the received quality of the second signal in the second network device connected to the first node. The first parameter is used to compensate for the signal-to-noise ratio (SNR) of the second signal in the first cell where the first node is located, which can be understood as: the first parameter is used to compensate for all or part of the SNR of the second signal in the second network device connected to the first node.

[0334] Optionally, the second parameter is used to compensate for all or part of the received power of the first signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the received power of the first signal in the third network device connected to the second node. The second parameter is used to compensate for all or part of the received quality of the second signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the received quality of the second signal in the third network device connected to the second node. The second parameter is used to compensate for the signal-to-noise ratio (SNR) of the second signal in the second cell where the second node is located. This can be understood as: the second parameter is used to compensate for all or part of the SNR of the second signal in the third network device connected to the second node.

[0335] Optionally, both the first and second nodes can be UL Only nodes.

[0336] In one possible implementation, the first cell may be a cell corresponding to a second network device connected to the first node, wherein the second network device is the first network device, or the second network device and the first network device are different network devices; and / or, the second cell may be a cell corresponding to a third network device connected to the second node, wherein the third network device and the second network device are different network devices.

[0337] In one possible implementation, the first parameter may be associated with at least one of the following: the first cell, the first sequence, or the first resource; and / or, the second parameter may be associated with at least one of the following: the second cell, the second sequence, or the second resource.

[0338] For example, the first parameter associated with the first cell can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of part or all of the SSBs of the first cell, compensating for the received quality of part or all of the CSI-RS of the first cell, or compensating for the signal-to-noise ratio of part or all of the CSI-RS of the first cell. For example, the first parameter associated with the first sequence can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of the SSBs generated based on the first sequence, compensating for the received quality of the CSI-RS generated based on the first sequence, or compensating for the signal-to-noise ratio of the CSI-RS generated based on the first sequence. For example, the first parameter associated with the first resource can be understood as follows: the first parameter is used for at least one of the following: compensating for the received power of the SSBs carried by the first resource, compensating for the received quality of the CSI-RS carried by the first resource, or compensating for the signal-to-noise ratio of the CSI-RS carried by the first resource.

[0339] For example, the second parameter associated with the second cell can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of part or all of the SSBs of the second cell, compensating for the received quality of part or all of the CSI-RS of the second cell, or compensating for the signal-to-noise ratio of part or all of the CSI-RS of the second cell. For example, the second parameter associated with the second sequence can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of the SSBs generated based on the second sequence, compensating for the received quality of the CSI-RS generated based on the second sequence, or compensating for the signal-to-noise ratio of the CSI-RS generated based on the second sequence. For example, the second parameter associated with the second resource can be understood as follows: the second parameter is used for at least one of the following: compensating for the received power of the SSBs carried by the second resource, compensating for the received quality of the CSI-RS carried by the second resource, or compensating for the signal-to-noise ratio of the CSI-RS carried by the second resource.

[0340] In one possible implementation, the first signal is an SSB; the first parameter is associated with the first cell and may include: the first parameter is associated with a first SSB of the first cell, and the first SSB belongs to all or part of the first signal of the first cell where the first node is located; and / or, the second parameter is associated with the second cell and may include: the second parameter is associated with a second SSB of the second cell, and the second SSB belongs to all or part of the first signal of the second cell where the second node is located.

[0341] In one possible implementation, the second signal may be a CSI-RS; the first parameter is associated with the first cell and may include: the first parameter is associated with a first CSI-RS of the first cell, the first CSI-RS belonging to all or part of the second signals of the first cell where the first node is located; and / or, the second parameter is associated with the second cell and may include: the second parameter is associated with a second CSI-RS of the second cell, the second CSI-RS belonging to all or part of the second signals of the second cell where the second node is located.

[0342] Detailed descriptions of the above-mentioned processing module 801 and transceiver module 802 can be obtained directly from the relevant descriptions in the foregoing embodiments, and will not be repeated here.

[0343] Figure 9 This illustration shows a schematic diagram of another communication device 900 provided in an embodiment of this application. The communication device 900 may include a processor 920, used to implement or support the communication device 900 in implementing the functions of the first network device or terminal device in the aforementioned method embodiments. For details, please refer to the detailed descriptions in the aforementioned method embodiments, which will not be repeated here. For example, the processor 920 is used to read and execute program instructions through the communication interface 910, so that the communication device 900 implements the corresponding method. The processor 920 may include one or more processors, without limitation.

[0344] It should be noted that the aforementioned functional modules can be implemented by hardware or by a combination of hardware and software, without limitation. Furthermore, when the communication device 900 includes only the processor 920, the communication device 900 can be a chip or a chip system.

[0345] For example, the communication device 900 can be a chip system. The chip system can be composed of chips or can include chips and other discrete components, without limitation.

[0346] For example, when the communication device 900 is a chip, the communication interface 910 can be the chip's input / output interface, where input corresponds to receiving operations and output corresponds to sending operations.

[0347] Optionally, the communication device 900 may further include a memory 930 for storing program instructions and / or data. The memory 930 is coupled to the processor 920. This coupling can be understood as an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 920 may operate in conjunction with the memory 930; the processor 920 and the memory 930 may be integrated together or disposed separately.

[0348] Furthermore, the processor 920 is used to execute program instructions stored in the memory 930 so that the communication device 900 implements the corresponding method.

[0349] One or more of the memories in memory 930 may be contained within the processor, or memory 930 may exist independently, such as off-chip memory, connected via a communication bus ( Figure 9 (Represented by thick line 940) is connected to processor 920. Memory 930 and processor 920 can also be integrated together.

[0350] Optionally, the communication device 900 further includes a communication interface 910. Figure 9 (represented by dashed lines), used for communication with other devices via transmission media, so that the device in the communication device 900 can communicate with other devices.

[0351] For example, when the communication device 900 is a terminal device, other devices may be a first network device, etc. The processor 920 can use the communication interface 910 to send and receive data. For example, the processor 920 can be used to control the communication interface 910 to receive and / or send signals.

[0352] Specifically, the communication interface 910 can be a transceiver. In terms of hardware implementation, the transceiver can be used to implement the functions of the aforementioned transceiver module 802, and the transceiver is integrated into the communication device 900 to form the communication interface 910.

[0353] Optionally, the transceiver may include a transmitter and / or a receiver to respectively implement the sending and receiving operations in the method embodiment; other operations besides sending and receiving may be implemented by the processor 920.

[0354] It should be noted that the communication interface 910 may have both sending and receiving functions, enabling the transmission and reception of signals; or it may have a sending function but no receiving function, used for transmitting signals; or it may have a receiving function but no sending function, used for receiving signals.

[0355] It should be noted that the specific connection medium between the communication interface 910, the processor 920 and the memory 930 is not limited in the embodiments of this application. Figure 9 The memory 930, processor 920, and communication interface 910 are connected via a communication bus 940. The connections between other components are only illustrative and not intended to be limiting. The communication bus 940 can be divided into address bus, data bus, control bus, etc. For ease of illustration, Figure 9 The symbol is represented by a single thick line, but this does not mean that there is only one communication bus or one type of communication bus.

[0356] In the embodiments of this application, the processor 920 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor may be a microprocessor or any conventional processor. The methods disclosed in the embodiments of this application may be executed by the hardware in the processor, or by a combination of hardware and software in the processor.

[0357] In this embodiment, the memory 930 can be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). The memory can also be any other medium used to carry or store program code in the form of instructions or data structures that can be accessed by a computer; or it can be a circuit or any other device capable of implementing storage functions for storing program instructions and / or data.

[0358] In a first possible implementation, the communication device 900 may be a terminal device or a device within a terminal device, used to implement the relevant methods corresponding to the terminal device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0359] For example, the methods corresponding to the terminal device in the above embodiments include: receiving first information from a first network device, the first information being used to indicate a first parameter and / or indicate a second parameter; wherein the first parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located, compensating for the received quality of all or part of the second signal in the first cell where the first node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located; the second parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located; wherein the transmission between the first node and the terminal device includes only uplink transmission, and the transmission between the second node and the terminal device includes only uplink transmission.

[0360] In a second possible implementation, the communication device 900 may be a first network device or a device within the first network device, used to implement the relevant methods corresponding to the first network device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0361] For example, the methods corresponding to the first network device in the above embodiments include: generating first information, the first information being used to indicate a first parameter and / or indicate a second parameter; wherein, the first parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located, compensating for the received quality of all or part of the second signal in the first cell where the first node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located; the second parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located; the transmission between the first node and the terminal device includes only uplink transmission, and the transmission between the second node and the terminal device includes only uplink transmission; sending the first information to the terminal device.

[0362] For the specific implementation process, please refer to the relevant content in the aforementioned embodiments; it will not be repeated here.

[0363] Figure 10 An exemplary embodiment of this application provides another communication device 1000, including: an input / output interface 1010 and a logic circuit 1020; the input / output interface 1010 is used to receive code instructions and transmit them to the logic circuit 1020; the logic circuit 1020 is used to run the code instructions to execute the method executed by the terminal device or the first network device in any of the above embodiments.

[0364] In a first implementation, the communication device 1000 can be applied to a terminal device to execute the methods performed by the terminal device, specifically, for example, the methods performed by the terminal device in the aforementioned method embodiments. For example, the communication device 1000 can receive first information from a first network device, the first information being used to indicate a first parameter and / or a second parameter; wherein the first parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located, compensating for the received quality of all or part of the second signal in the first cell where the first node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located; the second parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located; wherein the transmission between the first node and the terminal device only includes uplink transmission, and the transmission between the second node and the terminal device only includes uplink transmission.

[0365] In the second implementation, the communication device 1000 can be applied to a first network device to execute the method performed by the first network device, specifically, for example, the method performed by the terminal device in the aforementioned method embodiments. For example, the communication device 1000 can generate first information, which is used to indicate a first parameter and / or a second parameter; wherein the first parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the first cell where the first node is located, compensating for the received quality of all or part of the second signal in the first cell where the first node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the first cell where the first node is located; the second parameter is used for at least one of the following: compensating for the received power of all or part of the first signal in the second cell where the second node is located, compensating for the received quality of all or part of the second signal in the second cell where the second node is located, or compensating for the signal-to-noise ratio of all or part of the second signal in the second cell where the second node is located; the transmission between the first node and the terminal device includes only uplink transmission, and the transmission between the second node and the terminal device includes only uplink transmission; and the first information is sent to the terminal device.

[0366] For the specific implementation process, please refer to the aforementioned method implementation examples, which will not be repeated here.

[0367] This application also provides a communication system, which may include one or more of the following: a first network device or a terminal device. The first network device or the terminal device can be found in the descriptions of the foregoing method embodiments, and will not be repeated here.

[0368] This application also provides a computer-readable storage medium for storing computer programs or instructions. When the computer programs or instructions are run, the methods or steps executed by the first network device or terminal device in the foregoing embodiments are implemented.

[0369] This application also provides a computer program product, including a computer program that, when run on a computer, enables the methods or steps executed by the first network device or terminal device in the foregoing embodiments to be implemented.

[0370] This application provides a chip system including a processor for implementing the functions of the first network device or terminal device in the aforementioned method (e.g., executing corresponding methods or steps). The chip system may be composed of a chip or may include a chip and other discrete components.

[0371] Optionally, the chip system also includes a memory for storing program instructions that the processor can read and execute to implement the corresponding method.

[0372] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0373] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0374] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0375] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0376] The units described as separate components may or may not be physically separate. 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 the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0377] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0378] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essential contributing part of the technical solution of this application, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0379] The above description is merely a specific embodiment of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method comprises: The first device receives first information from a first network device, the first information being used to indicate a first parameter and / or a second parameter; wherein the first parameter is used to compensate at least one of the following: a reception power of all or part of a first signal of a first cell where a first node is located, a reception quality of all or part of a second signal of the first cell where the first node is located, or a signal-to-noise ratio of all or part of the second signal of the first cell where the first node is located; and the second parameter is used to compensate at least one of the following: a reception power of all or part of a first signal of a second cell where a second node is located, a reception quality of all or part of a second signal of the second cell where the second node is located, or a signal-to-noise ratio of all or part of the second signal of the second cell where the second node is located. Wherein, the transmission between the first node and the first device only includes uplink transmission, and the transmission between the second node and the first device only includes uplink transmission.

2. The method of claim 1, wherein: The first cell is a cell corresponding to a second network device, and the second network device is connected with the first node, wherein the second network device is the first network device, or the second network device is a different network device from the first network device; and / or The second cell is a cell corresponding to a third network device, and the third network device is connected with the second node, wherein the third network device is a different network device from the second network device.

3. The method of claim 1 or 2, wherein: The first parameter is associated with at least one of the following: the first cell, a first sequence, or a first resource; and / or The second parameter is associated with at least one of the following: the second cell, a second sequence, or a second resource.

4. The method of claim 3, wherein, The first signal is a synchronization signal and physical broadcast channel block (SSB); The first parameter is associated with the first cell, including that the first parameter is associated with a first SSB of the first cell, and the first SSB belongs to all or part of the first signal of the first cell where the first node is located; and / or The second parameter is associated with the second cell, including that the second parameter is associated with a second SSB of the second cell, and the second SSB belongs to all or part of the first signal of the second cell where the second node is located.

5. The method according to claim 3 or 4, characterized in that, The second signal is a channel state information reference signal (CSI-RS); The first parameter is associated with the first cell, including that the first parameter is associated with a first CSI-RS of the first cell, and the first CSI-RS belongs to all or part of the second signal of the first cell where the first node is located; and / or The second parameter is associated with the second cell, including that the second parameter is associated with a second CSI-RS of the second cell, and the second CSI-RS belongs to all or part of the second signal of the second cell where the second node is located.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: The first device performs cell reselection according to the first information; and / or The first device performs cell reselection according to the first information; and / or The first device performs cell switching according to the first information.

7. The method of claim 6, wherein, The first information is used to indicate a first parameter, and the first parameter is used to compensate for the reception power of all or part of first signals of a first cell where the first node is located, and the first signal is an SSB. The first device performs cell reselection according to the first information, including: The first device receives a first SSB, and the first SSB belongs to all or part of first signals of a first cell where the first node is located. The first device determines a cell to camp on according to the compensated reception power of the first SSB, wherein the compensated reception power of the first SSB is determined by the reception power obtained by measuring the first SSB and the first parameter.

8. The method of claim 6, wherein, The first information is used to indicate a second parameter, and the second parameter is used to compensate for the reception power of all or part of first signals of a second cell where the second node is located, and the first signal is an SSB. The first device performs cell reselection according to the first information, including: The first device receives a second SSB, and the second SSB belongs to all or part of first signals of a second cell where the second node is located. The first device determines a cell to camp on according to the compensated reception power of the second SSB, wherein the compensated reception power of the second SSB is determined by the reception power obtained by measuring the second SSB and the second parameter.

9. The method of claim 6, wherein, The first information is used to indicate the first parameter and the second parameter, the first parameter is used to compensate for the reception power of all or part of first signals of a first cell where the first node is located, and the second parameter is used to compensate for the reception power of all or part of first signals of a second cell where the second node is located, and the first signal is an SSB. The first device performs cell reselection according to the first information, including: The first device receives a first SSB and a second SSB, wherein the first SSB belongs to all or part of first signals of a first cell where the first node is located, and the second SSB belongs to all or part of first signals of a second cell where the second node is located. The first device determines a cell to camp on according to the compensated reception power of the first SSB and the compensated reception power of the second SSB, wherein the compensated reception power of the first SSB is determined by the reception power obtained by measuring the first SSB and the first parameter, and the compensated reception power of the second SSB is determined by the reception power obtained by measuring the second SSB and the second parameter.

10. The method according to claim 7 or 9, characterized in that, The first cell is a cell corresponding to a second network device, the second network device is the first network device, and the compensated reception power of the first SSB is determined by the reception power obtained by measuring the first SSB and the first parameter, including: The compensated reception power of the first SSB is determined by the reception power obtained by measuring the first SSB, the first parameter, and a first value.

11. The method of claim 10, wherein, The reception power obtained by measuring the first SSB satisfies a first condition.

12. A communication method, comprising: The method includes: The second device generates first information, the first information being used for indicating a first parameter and / or a second parameter; wherein the first parameter is used for at least one of compensating for a reception power of all or part of first signals of a first cell where a first node is located, compensating for a reception quality of all or part of second signals of the first cell where the first node is located, or compensating for a signal-to-noise ratio of all or part of the second signals of the first cell where the first node is located; the second parameter is used for at least one of compensating for a reception power of all or part of first signals of a second cell where a second node is located, compensating for a reception quality of all or part of second signals of the second cell where the second node is located, or compensating for a signal-to-noise ratio of all or part of the second signals of the second cell where the second node is located; transmission between the first node and a terminal device only includes uplink transmission, and transmission between the second node and the terminal device only includes uplink transmission. The second device sends the first information to the terminal device.

13. The method of claim 12, wherein the first cell is a cell corresponding to a second network device, the second network device being connected with the first node, wherein the second network device is the second device, or the second network device is a different network device from the second device; and / or the second cell is a cell corresponding to a third network device, the third network device being connected with the second node, wherein the third network device is a different network device from the second network device.

14. The method of claim 12 or 13, wherein the first parameter is associated with at least one of the first cell, a first sequence, or a first resource; and / or the second parameter is associated with at least one of the second cell, a second sequence, or a second resource.

15. The method of claim 14, wherein, the first signal is an SSB; the first parameter is associated with the first cell, including that the first parameter is associated with a first SSB of the first cell, the first SSB belonging to all or part of first signals of the first cell where the first node is located; and / or the second parameter is associated with the second cell, including that the second parameter is associated with a second SSB of the second cell, the second SSB belonging to all or part of first signals of the second cell where the second node is located.

16. The method according to claim 14 or 15, characterized in that the second signal is a CSI-RS; the first parameter is associated with the first cell, including that the first parameter is associated with a first CSI-RS of the first cell, the first CSI-RS belonging to all or part of second signals of the first cell where the first node is located; and / or the second parameter is associated with the second cell, including that the second parameter is associated with a second CSI-RS of the second cell, the second CSI-RS belonging to all or part of second signals of the second cell where the second node is located.

17. A communications device, characterized by A module for performing the method of any one of claims 1 to 16.

18. A communications device, characterized by comprising at least one processor for performing the method of any one of claims 1 to 16.

19. A communication system, characterized by comprising a first device for performing the method of any one of claims 1 to 11 and / or a second device for performing the method of any one of claims 12 to 16.

20. A computer-readable storage medium, characterized in that, a computer program or instructions stored thereon, which, when executed, cause the method of any one of claims 1 to 16 to be performed.

21. A computer program product, characterised in that, the computer program product comprises a computer program which, when executed on a computer, causes the method of any one of claims 1 to 16 to be performed.

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