A communication method and apparatus

Abstract

The application relates to a communication method and device, and relates to the technical field of communication. In the method, a terminal can receive first configuration information, and determine corresponding resources included in a first resource group in N resource groups based on the first configuration information, such as first uplink resources and / or first downlink resources. The frequency band to which the first uplink resources belong and the frequency band to which the second downlink resources belong overlap, the first uplink resources and the second downlink resources do not overlap, the frequency band to which the first downlink resources belong and the frequency band to which the second uplink resources belong overlap, and the first downlink resources and the second uplink resources do not overlap. In the case that the areas covered by multiple network devices overlap, the first uplink resources and the second downlink resources can be used for communication without signal interference, and the first downlink resources and the second uplink resources can also be used for communication without signal interference.

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 communication technology, to improve uplink and downlink throughput and system capacity, the coverage areas of multiple network devices can overlap to facilitate communication between a terminal and one or more of these devices. For example, in non-terrestrial network (NTN) technology, multiple coverage schemes have been proposed. For instance, the coverage areas of NTN device #1 and NTN device #2 can overlap to allow a terminal to communicate with NTN device #1 and / or NTN device #2. However, in this scenario, signal interference is a significant problem. Therefore, reducing signal interference is a pressing technical issue that needs to be addressed at present. Summary of the Invention

[0003] This application provides a communication method and apparatus that can reduce signal interference when the coverage areas of multiple network devices overlap.

[0004] Firstly, a communication method is provided, which can be executed by a terminal device. The terminal device can be a terminal or a component applied in the terminal (e.g., a module, communication module, circuit responsible for communication functions, processor, chip, or chip system; the chip can be a modem chip, also known as a baseband chip, or a system-on-a-chip containing a modem core, or a system-in-a-chip, etc.), or a logical node, logical module, or software capable of implementing all or part of the terminal functions; this application does not limit this. The method includes: the terminal device receiving first configuration information, the first configuration information including N resource groups, the N resource groups including a first resource group, the first resource group being used for communication between the terminal device located in a first geographical area and a first network device, where N is a positive integer, and the terminal device is located in the first geographical area. The terminal device communicates with the first network device based on the first resource group. The first resource group includes a first uplink resource and / or a first downlink resource. The first uplink resource is used for uplink communication between a terminal device located in the first geographical area and a first network device. The frequency band of the first uplink resource overlaps with the frequency band of the second downlink resource. The second downlink resource is used for downlink communication between a terminal device located in the first geographical area and a second network device. The first uplink resource and the second downlink resource do not overlap.

[0005] In the above embodiments, the terminal device can receive first configuration information, and thereby determine the corresponding resources included in the first resource group among N resource groups, such as the first uplink resource and / or the first downlink resource, based on the first configuration information. The frequency band to which the first uplink resource belongs overlaps with the frequency band to which the second downlink resource belongs, but the first uplink resource and the second downlink resource do not overlap. Thus, when the coverage areas of multiple network devices overlap, for a terminal device located in the first geographical area, uplink communication with the first network device on the first uplink resource will not interfere with downlink communication with the second network device on the second downlink resource, and vice versa, thus reducing signal interference. Similarly, the frequency band to which the first downlink resource belongs overlaps with the frequency band to which the second uplink resource belongs, but the first downlink resource and the second uplink resource do not overlap. In this way, when the coverage areas of multiple network devices overlap, for a terminal device located in the first geographical area, downlink communication on the first downlink resource with the first network device will not interfere with uplink communication on the second uplink resource with the second network device, and vice versa, thus reducing signal interference. Furthermore, the overlap between the frequency bands of the first uplink resource and the second downlink resource results in higher spectrum utilization.

[0006] In one possible implementation, the first resource group is also used for a terminal device located in a first geographical area to communicate with a second network device. The first resource group also includes a second uplink resource and / or a second downlink resource. The terminal device can also communicate with the second network device based on the first resource group.

[0007] In the above embodiments, the terminal device can also determine the corresponding resources for communicating with the second network device, such as second uplink resources and / or second downlink resources, through the first resource group. This indicates that resource allocation is implemented by a single network device, reducing the complexity of resource configuration.

[0008] In one possible implementation, the terminal device may further receive second configuration information, which includes M resource groups, including a second resource group. This second resource group is used for communication between the terminal device located in the first geographical area and the second network device. The second resource group includes second uplink resources and / or second downlink resources, where M is a positive integer. Thus, the terminal device can communicate with the second network device based on the second resource group.

[0009] In the above embodiments, the terminal device can also receive second configuration information, thereby determining the corresponding resources included in the second resource group among the M resource groups, such as second uplink resources and / or second downlink resources, based on the second configuration information. This indicates that resource allocation is implemented by multiple network devices, such as a first network device allocating resources for communication with the first network device, a second network device allocating resources for communication with the second network device, etc., making the resource configuration more closely aligned with actual communication needs.

[0010] In one possible implementation, the N resource groups further include a third resource group, which is used for communication between a terminal device located in the second geographic area and a first network device. The terminal device can also send first indication information when it moves from the first geographic area to the second geographic area. The first indication information is used to indicate at least one of the following: the identifier of the second geographic area, the identifier of the third resource group, the location information of the terminal device, the terminal device moving from the first geographic area to the second geographic area, or the terminal device switching from the first resource group to the third resource group. The first indication information is used to request communication based on the third resource group.

[0011] In the above embodiments, when the terminal device moves from the first geographical area to the second geographical area, the terminal device can also send a first indication message to inform the network device that the terminal device has moved. This helps the terminal device and the network device to maintain a consistent understanding of the resources used within the geographical area, reducing communication failures caused by inconsistent understanding.

[0012] In one possible implementation, the first configuration information further includes a first event, which is used to indicate that a first instruction message is sent when the terminal device moves from a first geographic area to a second geographic area.

[0013] In the above embodiments, the terminal device can learn under what circumstances the first instruction information should be sent through the first event in the first configuration information, so that the terminal device can send the first instruction information when necessary, reduce unnecessary transmissions, save signaling overhead, and also reduce the communication failure problem caused by excessive interference due to the terminal device's erroneous execution of resource switching.

[0014] In one possible implementation, the third resource group includes a third uplink resource and / or a third downlink resource. The third uplink resource is used for uplink communication between a terminal device located in the second geographic area and a first network device, and the third downlink resource is used for downlink communication between a terminal device located in the second geographic area and the first network device. The terminal device can also switch from the first uplink resource to the third uplink resource and / or from the first downlink resource to the third downlink resource.

[0015] In the above embodiments, when the terminal device moves from a first geographical area to a second geographical area, the terminal device can perform resource switching, thereby enabling it to use the correct resources for communication in the second geographical area, which helps reduce communication failures. Furthermore, the terminal device updates the resources according to its geographical location to use the updated resources for communication. The updated resources, including those for uplink communication with the first network device and those for downlink communication with the second network device, still have overlapping frequency bands but no resource overlap. And / or, the updated resources, including those for downlink communication with the first network device and uplink communication with the second network device, still have overlapping frequency bands but no resource overlap, which reduces signal interference.

[0016] In one possible implementation, the terminal device receives second indication information, which includes the identifier of a third uplink resource and / or the identifier of a third downlink resource.

[0017] In the above embodiments, the terminal device can receive the second instruction information, thereby knowing from the network device which resource should be switched to. This helps the terminal device and the network device to maintain a consistent understanding of the resources used in the geographical area, reducing communication failures caused by inconsistent understanding.

[0018] In one possible implementation, the M resource groups further include a fourth resource group, which is used for communication between a terminal device located in the second geographic area and a second network device. When the terminal device moves from the first geographic area to the second geographic area, it sends third indication information. The third indication information is used to indicate at least one of the following: the identifier of the second geographic area, the identifier of the fourth resource group, the location information of the terminal device, the terminal device moving from the first geographic area to the second geographic area, or the terminal device switching from the second resource group to the fourth resource group. The third indication information is used to request communication based on the fourth resource group.

[0019] In the above embodiments, when the terminal device moves from the first geographical area to the second geographical area, the terminal device can also send a third indication message so that the corresponding network device is aware that the terminal device has moved. This helps the terminal device and the network device maintain a consistent understanding of the resources used within the geographical area, reducing communication failures caused by inconsistent understanding.

[0020] In one possible implementation, the second configuration information further includes a second event, which is used to indicate the transmission of third instruction information when the terminal device moves from the first geographic region to the second geographic region.

[0021] In the above embodiments, the terminal device can learn from the second event in the second configuration information under what circumstances the third instruction information should be sent, so that the terminal device can send the third instruction information when necessary, reduce unnecessary transmissions, save signaling overhead, and also reduce the communication failure problem caused by excessive interference due to the terminal device's erroneous execution of resource switching.

[0022] In one possible implementation, the third resource group is also used for communication between a terminal device located in the second geographic area and a second network device. The third resource group includes a fourth uplink resource and / or a fourth downlink resource, or the fourth resource group includes a fourth uplink resource and / or a fourth downlink resource. The fourth uplink resource is used for uplink communication between the terminal device located in the second geographic area and the second network device, and the fourth downlink resource is used for downlink communication between the terminal device located in the second geographic area and the second network device. The terminal device can also switch from the second uplink resource to the fourth uplink resource, and / or switch from the second downlink resource to the fourth downlink resource.

[0023] In the above embodiments, when the terminal device moves from a first geographical area to a second geographical area, the terminal device can perform resource switching, thereby enabling it to use the correct resources for communication in the second geographical area, which helps reduce communication failures. Furthermore, the terminal device updates the resources according to its geographical location to use the updated resources for communication. The updated resources, including those for uplink communication with the first network device and those for downlink communication with the second network device, still have overlapping frequency bands but no resource overlap. And / or, the updated resources, including those for downlink communication with the first network device and uplink communication with the second network device, still have overlapping frequency bands but no resource overlap, which reduces signal interference.

[0024] In one possible implementation, the terminal device may also receive fourth indication information, which includes the identifier of a fourth uplink resource and / or the identifier of a fourth downlink resource.

[0025] In the above embodiments, the terminal device can receive the fourth instruction information, thereby knowing from the network device which resource should be switched to. This helps the terminal device and the network device to maintain a consistent understanding of the resources used in the geographical area, reducing communication failures caused by inconsistent understanding.

[0026] In one possible implementation, the frequency band to which the third uplink resource belongs overlaps with the frequency band to which the fourth downlink resource belongs, while the third uplink resource and the fourth downlink resource do not overlap. Alternatively, the frequency band to which the third downlink resource belongs overlaps with the frequency band to which the fourth uplink resource belongs, while the third downlink resource and the fourth uplink resource do not overlap.

[0027] In the above embodiments, the frequency band of the third uplink resource overlaps with the frequency band of the fourth downlink resource, but the third uplink resource and the fourth downlink resource do not overlap. Thus, when the coverage areas of multiple network devices overlap, for a terminal device located in the second geographical area, uplink communication on the third uplink resource with the first network device will not interfere with downlink communication on the fourth downlink resource with the second network device, and vice versa, thus reducing signal interference. Similarly, when the frequency band of the third downlink resource overlaps with the frequency band of the fourth uplink resource, but the third downlink resource and the fourth uplink resource do not overlap, for a terminal device located in the second geographical area, downlink communication on the third downlink resource with the first network device will not interfere with uplink communication on the fourth uplink resource with the second network device, and vice versa, thus reducing signal interference.

[0028] In one possible implementation, the terminal device may further receive third configuration information, which includes a first set of reference signals. Each reference signal in the first set of reference signals is associated with at least one resource in a first resource group, or each reference signal in the first set of reference signals is associated with at least one resource in a second resource group. The first set of reference signals includes a first reference signal. Thus, the terminal device can perform measurements based on the first reference signal to obtain a first measurement result. The first measurement result is used to determine whether the resource associated with the first reference signal in the first or second resource group is available. The first measurement result includes at least one of the following: a signal power value, a signal quality value, an interference power value, or a signal-to-interference-plus-noise ratio (SINR) measured based on the first reference signal, and the measurement is performed based on the second reference signal.

[0029] In the above embodiments, the terminal device can receive third configuration information and determine a first reference signal set based on the third configuration information, so as to perform measurement through the first reference signal in the first reference signal set and determine whether the resource associated with the first reference signal in the first resource group or the second resource group is available. This helps to reduce the communication failure problem caused by the terminal device mistakenly believing that the resource associated with the first reference signal in the first resource group or the second resource group is available, and also helps the terminal device select the available resources in the first resource group or the second resource group for communication, thus ensuring communication quality.

[0030] In one possible implementation, the first reference signal set further includes a second reference signal, and the terminal device can also perform measurements based on the second reference signal when the resource associated with the first reference signal in the first resource group or the second resource group is unavailable. For example, measurements are performed based on the second reference signal when a first condition is met. The first condition includes at least one of the following: the signal power value measured based on the first reference signal is less than or equal to a first threshold; the signal quality value measured based on the first reference signal is less than or equal to a second threshold; the interference power value measured based on the first reference signal is greater than or equal to a third threshold; or the SINR measured based on the first reference signal is less than or equal to a fourth threshold.

[0031] In the above embodiments, the terminal device needs to meet certain conditions to measure the second reference signal. This reduces the problem of high power consumption caused by the terminal device mistakenly believing that the second reference signal can be measured under any circumstances. It also helps the terminal device to determine whether the resources associated with the second reference signal in the first resource group or the second resource group are available.

[0032] In one possible implementation, the third configuration information further includes a third event, which indicates that a measurement based on the second reference signal is performed if the first condition is met.

[0033] In the above embodiments, the terminal device can learn from the third event in the third configuration information under what circumstances the measurement should be based on the second reference signal, thereby reducing the problem of high power consumption caused by the terminal device mistakenly believing that the second reference signal can be measured under any circumstances, resulting in a large number of measurements.

[0034] In one possible implementation, the third configuration information further includes the priority of each reference signal in the first reference signal set, and the order in which measurements are performed based on each reference signal in the first reference signal set is determined by the priority of each reference signal in the first reference signal set.

[0035] In the above embodiments, the terminal device can know the order of measurement of the reference signals by the priority of each reference signal in the first reference signal set, which is beneficial to improving measurement efficiency.

[0036] In one possible implementation, the third configuration information further includes a second set of reference signals. Each reference signal in the first set is associated with at least one resource in the first resource group, and each reference signal in the second set is associated with at least one resource in the third resource group; or, each reference signal in the first set is associated with at least one resource in the second resource group, and each reference signal in the second set is associated with at least one resource in the fourth resource group. The terminal device can also perform measurements based on the second set of reference signals if a second condition is met. The second condition includes at least one of the following: the terminal device moves to a third geographical area; the signal power values ​​measured based on each reference signal in the first set are all less than or equal to a first threshold; the signal quality values ​​measured based on each reference signal in the first set are all less than or equal to a second threshold; the interference power values ​​measured based on each reference signal in the first set are all greater than or equal to a third threshold; or the SINR measured based on each reference signal in the first set is all less than or equal to a fourth threshold; and the third geographical area is associated with the first geographical area and / or the second geographical area.

[0037] In the above embodiments, the terminal device needs to meet certain conditions when performing measurements based on the second reference signal set. This reduces the problem of high power consumption caused by the terminal device mistakenly believing that the second reference signal set can be measured under any circumstances. It also helps the terminal device to determine which resources in the third or fourth resource group are available.

[0038] In one possible implementation, the third configuration information further includes a fourth event, which indicates that a measurement based on a second set of reference signals is performed if the second condition is met.

[0039] In the above embodiments, the terminal device can learn from the fourth event in the third configuration information under what circumstances the measurement should be based on the second reference signal set. This reduces the problem of the terminal device mistakenly believing that the second reference signal set can be measured under any circumstances, resulting in a large number of measurements and high power consumption. It also helps the terminal device to determine which resources in the third or fourth resource group are available.

[0040] Secondly, a communication method is provided, which can be executed by a network device (such as a first network device or a second network device). The network device can be a network equipment or a component applied in a network equipment, or a logical node, logical module, or software that can realize all or part of the functions of the network equipment; this application does not limit this. The method includes: the network device sending first configuration information, the first configuration information including N resource groups, the N resource groups including a first resource group, the first resource group being used for communication between a terminal device located in a first geographical area and the first network device, where N is a positive integer, and the terminal device is located in the first geographical area. The network device communicates with the terminal device located in the first geographical area based on the first resource group. The first resource group includes a first uplink resource and / or a first downlink resource. The first uplink resource is used for uplink communication between the terminal device located in the first geographical area and the first network device, the frequency band of the first uplink resource overlaps with the frequency band of the second downlink resource, the second downlink resource is used for downlink communication between the terminal device located in the first geographical area and the second network device, and the first uplink resource and the second downlink resource do not overlap. The first downlink resource is used for downlink communication between a terminal device located in the first geographical area and a first network device. The frequency band of the first downlink resource overlaps with the frequency band of the second uplink resource. The second uplink resource is used for uplink communication between a terminal device located in the first geographical area and a second network device. The first downlink resource and the second uplink resource do not overlap.

[0041] In the above embodiments, the network device can send first configuration information, enabling the terminal device to determine the corresponding resources included in the first resource group among N resource groups, such as the first uplink resource and / or the first downlink resource, based on the first configuration information. The frequency band of the first uplink resource overlaps with the frequency band of the second downlink resource, but the first uplink resource and the second downlink resource do not overlap. Thus, when the coverage areas of multiple network devices overlap, for a terminal device located in the first geographical area, uplink communication with the first network device on the first uplink resource will not interfere with downlink communication with the second network device on the second downlink resource, and vice versa, reducing signal interference. Similarly, the frequency band of the first downlink resource overlaps with the frequency band of the second uplink resource, but the first downlink resource and the second uplink resource do not overlap. In this way, when the coverage areas of multiple network devices overlap, for a terminal device located in the first geographical area, downlink communication on the first downlink resource with the first network device will not interfere with uplink communication on the second uplink resource with the second network device, and vice versa, thus reducing signal interference. Furthermore, the overlap between the frequency bands of the first uplink resource and the second downlink resource results in higher spectrum utilization.

[0042] In one possible implementation, the first resource group is also used for terminal devices located in a first geographical area to communicate with a second network device, and the first resource group also includes a second uplink resource and / or a second downlink resource.

[0043] In the above embodiments, the network device (such as the first network device or the second network device) also indicates the corresponding resources for communicating with the second network device, such as second uplink resources and / or second downlink resources, through a first resource group. This indicates that resource allocation is implemented by a single network device, reducing the complexity of resource configuration.

[0044] In one possible implementation, the network device is a second network device. The network device may also send second configuration information, which includes M resource groups, including a second resource group. This second resource group is used for communication between a terminal device located in the first geographical area and the second network device. The second resource group includes second uplink resources and / or second downlink resources, where M is a positive integer. Thus, the network device can communicate with the terminal device located in the first geographical area based on the second resource group.

[0045] In the above embodiments, the second network device can also send second configuration information, enabling the terminal device to determine the corresponding resources included in the second resource group among the M resource groups, such as second uplink resources and / or second downlink resources, based on the second configuration information. This indicates that resource allocation is implemented by multiple network devices, such as the first network device allocating resources for communication with the first network device, the second network device allocating resources for communication with the second network device, etc., making the resource configuration more closely aligned with actual communication needs.

[0046] In one possible implementation, the N resource groups further include a third resource group, which is used for communication between a terminal device located in a second geographic area and a first network device. The network device can receive first indication information, which indicates at least one of the following: the identifier of the second geographic area, the identifier of the third resource group, the location information of the terminal device, the terminal device moving from the first geographic area to the second geographic area, or the terminal device switching from the first resource group to the third resource group. The first indication information is used to request communication based on the third resource group.

[0047] In the above embodiments, the network device can receive first indication information to know that the terminal device has moved. This helps the terminal device and the network device maintain a consistent understanding of the resources used within the geographical area, reducing communication failures caused by inconsistent understanding.

[0048] In one possible implementation, the first configuration information further includes a first event, which is used to indicate that a first instruction message is sent when the terminal device moves from a first geographic area to a second geographic area.

[0049] In the above embodiments, the network device can enable the terminal device to know under what circumstances the first instruction information should be sent through the first event in the first configuration information, so that the terminal device can send the first instruction information when necessary, reduce unnecessary transmissions, save signaling overhead, and also reduce the communication failure problem caused by excessive interference due to the terminal device's erroneous execution of resource switching.

[0050] In one possible implementation, the third resource group includes a third uplink resource and / or a third downlink resource. The third uplink resource is used for uplink communication between a terminal device located in the second geographical area and a first network device, and the third downlink resource is used for downlink communication between a terminal device located in the second geographical area and the first network device. The network device sends second indication information, which includes the identifier of the third uplink resource and / or the identifier of the third downlink resource.

[0051] In the above embodiments, the network device can send a second instruction message, which enables the terminal device to know which resource to switch to. This helps the terminal device and the network device to have a consistent understanding of the resources used in the geographical area, reducing the problem of communication failure due to inconsistent understanding.

[0052] In one possible implementation, the M resource groups further include a fourth resource group, which is used for communication between a terminal device located in the second geographic area and a second network device. The network device can also receive third indication information, which is used to indicate at least one of the following: the identifier of the second geographic area, the identifier of the fourth resource group, the location information of the terminal device, the terminal device moving from the first geographic area to the second geographic area, or the terminal device switching from the second resource group to the fourth resource group. The third indication information is used to request communication based on the fourth resource group.

[0053] In the above embodiments, the network device can receive third indication information to know that the terminal device has moved. This helps the terminal device and the network device maintain a consistent understanding of the resources used within the geographical area, reducing communication failures caused by inconsistent understanding.

[0054] In one possible implementation, the second configuration information further includes a second event, which is used to indicate the transmission of third instruction information when the terminal device moves from the first geographic region to the second geographic region.

[0055] In the above embodiments, the network device can use the second event in the second configuration information to enable the terminal device to know under what circumstances the third instruction information should be sent, so that the terminal device can send the first instruction information when necessary, reduce unnecessary transmissions, save signaling overhead, and also reduce the communication failure problem caused by excessive interference due to the terminal device's erroneous execution of resource switching.

[0056] In one possible implementation, the third resource group is also used for communication between the terminal device located in the second geographical area and the second network device. The third resource group includes a fourth uplink resource and / or a fourth downlink resource, or the fourth resource group includes a fourth uplink resource and / or a fourth downlink resource. The fourth uplink resource is used for uplink communication between the terminal device located in the second geographical area and the second network device, and the fourth downlink resource is used for downlink communication between the terminal device located in the second geographical area and the second network device. The network device may also send fourth indication information, which includes the identifier of the fourth uplink resource and / or the identifier of the fourth downlink resource.

[0057] In the above embodiments, the network device can send a fourth instruction message, which enables the terminal device to know which resource to switch to. This helps the terminal device and the network device to have a consistent understanding of the resources used in the geographical area, reducing communication failures caused by inconsistent understanding.

[0058] In one possible implementation, the frequency band to which the third uplink resource belongs overlaps with the frequency band to which the fourth downlink resource belongs, while the third uplink resource and the fourth downlink resource do not overlap. Alternatively, the frequency band to which the third downlink resource belongs overlaps with the frequency band to which the fourth uplink resource belongs, while the third downlink resource and the fourth uplink resource do not overlap.

[0059] In the above embodiments, the frequency band of the third uplink resource overlaps with the frequency band of the fourth downlink resource, but the third uplink resource and the fourth downlink resource do not overlap. Thus, when the coverage areas of multiple network devices overlap, for a terminal device located in the second geographical area, uplink communication on the third uplink resource with the first network device will not interfere with downlink communication on the fourth downlink resource with the second network device, and vice versa, thus reducing signal interference. Similarly, when the frequency band of the third downlink resource overlaps with the frequency band of the fourth uplink resource, but the third downlink resource and the fourth uplink resource do not overlap, for a terminal device located in the second geographical area, downlink communication on the third downlink resource with the first network device will not interfere with uplink communication on the fourth uplink resource with the second network device, and vice versa, thus reducing signal interference.

[0060] In one possible implementation, the network device may also send third configuration information, which includes a first set of reference signals, wherein each reference signal in the first set of reference signals is associated with at least one resource in a first resource group, or, each reference signal in the first set of reference signals is associated with at least one resource in a second resource group, wherein the first set of reference signals includes a first reference signal.

[0061] In the above embodiments, the network device can send third configuration information, enabling the terminal device to determine a first reference signal set based on the third configuration information. This facilitates measurement using the first reference signal in the first reference signal set and determines whether the resource associated with the first reference signal in the first resource group or the second resource group is available. This helps reduce communication failures caused by the terminal device mistakenly believing that the resource associated with the first reference signal in the first resource group or the second resource group is available. It also helps the terminal device select available resources in the first resource group or the second resource group for communication, thus ensuring communication quality.

[0062] In one possible implementation, the first reference signal set further includes a second reference signal, and the third configuration information further includes a third event, which indicates that a measurement is performed based on the second reference signal if a first condition is met. The first condition includes at least one of the following: a signal power value measured based on the first reference signal is less than or equal to a first threshold; a signal quality value measured based on the first reference signal is less than or equal to a second threshold; an interference power value measured based on the first reference signal is greater than or equal to a third threshold; or a SINR measured based on the first reference signal is less than or equal to a fourth threshold.

[0063] In the above embodiments, the network device can enable the terminal device to know under what circumstances the measurement should be based on the second reference signal through the third event in the third configuration information, thereby reducing the problem of high power consumption caused by the terminal device mistakenly believing that the second reference signal can be measured under any circumstances, resulting in a large number of measurements.

[0064] In one possible implementation, the third configuration information further includes the priority of each reference signal in the first reference signal set, and the order in which measurements are performed based on each reference signal in the first reference signal set is determined by the priority of each reference signal in the first reference signal set.

[0065] In the above embodiments, the network device can also configure the priority of each reference signal in the first reference signal set, so that the terminal device can know the order of measurement of the reference signals through the priority of each reference signal in the first reference signal set, which is beneficial to improving measurement efficiency.

[0066] In one possible implementation, the third configuration information further includes a second set of reference signals. Each reference signal in the first set is associated with at least one resource in a first resource group, and each reference signal in the second set is associated with at least one resource in a third resource group; or, each reference signal in the first set is associated with at least one resource in the second resource group, and each reference signal in the second set is associated with at least one resource in a fourth resource group. The third configuration information also includes a fourth event, which indicates that a measurement is performed based on the second set of reference signals when a second condition is met. The second condition includes at least one of the following: the terminal device moves to a third geographic area; the signal power values ​​measured based on each reference signal in the first set are all less than or equal to a first threshold; the signal quality values ​​measured based on each reference signal in the first set are all less than or equal to a second threshold; the interference power values ​​measured based on each reference signal in the first set are all greater than or equal to a third threshold; or the SINR measured based on each reference signal in the first set is all less than or equal to a fourth threshold; and the third geographic area is associated with the first geographic area and / or the second geographic area.

[0067] In the above embodiments, the network device can enable the terminal device to know under what circumstances the measurement should be based on the second reference signal set through the fourth event in the third configuration information. This reduces the problem of the terminal device mistakenly believing that the second reference signal set can be measured under any circumstances, resulting in a large number of measurements and high power consumption. It also helps the terminal device to determine which resources in the third resource group or the fourth resource group are available.

[0068] Thirdly, a communication apparatus is provided, comprising units, modules, or means for implementing the method as described in any one of the first or second aspects. The communication apparatus may be a terminal device or a network device (such as a first network device or a second network device, etc.).

[0069] Fourthly, a communication device is provided, comprising at least one processor. The at least one processor is configured to cause the communication device to perform the method described in any one of the first or second aspects. The communication device may be a terminal device or a network device (such as a first network device or a second network device, etc.). The at least one processor may execute a computer program or instructions stored in a memory to cause the described method to be performed. The memory may be included in the communication device or located outside the communication device. Furthermore, the communication device may also include an interface.

[0070] Fifthly, a computer-readable storage medium is provided, which stores computer instructions or programs that, when executed, cause a computer to perform the method as described in any one of the first or second aspects.

[0071] Sixthly, a computer program product is provided, comprising: a computer program or program that, when run by a computer, causes the computer to perform the method as described in any one of the first or second aspects.

[0072] A seventh aspect provides a chip including at least one processor for executing computer instructions or programs, which, when run, cause the chip to perform the method as described in any one of the first or second aspects. The processor may execute computer programs or instructions stored in memory to cause the described method to be performed. The memory may be included in the chip or located externally. Furthermore, the chip may include an interface.

[0073] Eighthly, a communication system is provided, comprising a terminal device for performing the method as described in any one of the first aspects and a network device (such as a first network device or a second network device, etc.) for performing the method as described in any one of the second aspects. Attached Figure Description

[0074] Figure 1 As the basic architecture of a communication system;

[0075] Figure 2 This is a schematic diagram of the RAN architecture of an NTN-based device to which the embodiments of this application apply;

[0076] Figure 3 A schematic diagram illustrating a geographical region division provided in an embodiment of this application;

[0077] Figure 4 A flowchart illustrating a communication method provided in an embodiment of this application;

[0078] Figure 5 A schematic diagram showing that a BWP for uplink communication with satellite #0 and a BWP for downlink communication with satellite #1 do not overlap, as provided in an embodiment of this application.

[0079] Figure 6 A schematic diagram illustrating the association between a third geographic region and a first geographic region and / or a second geographic region, provided for an embodiment of this application;

[0080] Figure 7 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0081] Figure 8This is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0082] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. The terms "system" and "network" in the embodiments of this application can be used interchangeably. Unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship; for example, A / B can represent A or B. "And / or" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be one or multiple. Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish between network elements and similar items with essentially the same function. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that the terms "first" and "second" are not necessarily different.

[0083] References to "one embodiment" or "some embodiments" in the embodiments described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0084] The following detailed embodiments further illustrate the objectives, technical solutions, and beneficial effects of this application. It should be understood that the following are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made based on the technical solutions of this application should be included within the scope of protection of this application.

[0085] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0086] The method provided in this application can be applied to various communication systems, such as wireless local area network (WLAN) systems, Internet of Things (IoT) systems, narrowband Internet of Things (NB-IoT) systems, long term evolution (LTE) systems, 5th generation (5G) communication systems, new radio (NR) systems, or new communication systems emerging in future communication development. Among these, IoT networks may include, but are not limited to, vehicle-to-everything (V2X) networks. The communication methods in V2X systems can be collectively referred to as vehicle-to-everything (V2X), where X can represent anything. For example, V2X can include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication, etc. The method provided in this application can also be applied to non-terrestrial network (NTN) communication systems, or scenarios where NTN and terrestrial network (TN) are integrated. The NTN system can be an NTN system integrated with 4G, 5G, or any future generation of communication systems, such as NR NTN, IoT NTN, etc. The NTN communication system can be, for example, a satellite communication system, or it can include unmanned aerial vehicles (UAVs), high altitude platform stations (HAPS), and other aerial access network equipment; this application does not limit this.

[0087] The method provided in this application can be applied between two entities in a communication system, such as one entity sending information to or receiving information sent by the other entity. In a wireless communication system, communication devices are included, and these devices can communicate wirelessly using air interface resources. Air interface resources may include at least one of time-domain resources, frequency-domain resources, code-domain resources, and spatial resources; this application does not limit this. For example, the aforementioned two entities may include a network device and a terminal, or may include a chip that can be placed in a network device and a chip that can be placed in a terminal, etc. Of course, as standards advance, other types of entities may emerge subsequently; this application does not limit this.

[0088] The basic architecture of the communication system provided in the embodiments of this application is described below. The communication system provided in this application may include one or more network devices and one or more terminals.

[0089] The following is based on Figure 1 The system architecture shown is illustrated as an example. Figure 1 In this context, the communication system may include one or more network devices (e.g., Figure 1 Taking two network devices as an example), and one or more terminals (e.g., Figure 1 (Taking a terminal as an example). The terminal is located in one or more cells provided by the network device (e.g., ...). Figure 1 Within the coverage area of ​​cells 1 and 2 (e.g., cells 1 and 2), the terminal can be served by one or more cells. With multiple serving cells, the terminal can operate using carrier aggregation (CA), dual connectivity (DC), or cooperative multipoint transmission modes. The following section will provide a detailed description of the terminals and network equipment involved in the system architecture.

[0090] I. Terminal

[0091] A terminal is an entity on the user side used to receive signals, or transmit signals, or both. Terminals are used to provide users with one or more of the following: voice services and data connectivity services. A terminal can be a device that includes wireless transceiver capabilities and can cooperate with network equipment to provide communication services to users. Specifically, a terminal can refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication equipment, user agent, user equipment, or roadside unit (RSU). Terminal equipment can also be a communication module with satellite communication capabilities, a satellite phone or its components, or a satellite communication terminal, such as a very small aperture terminal (VSAT) (commonly referred to as a VSAT terminal), a portable station, a fixed station, a vehicle-mounted or airborne satellite communication terminal, etc. It should be understood that a satellite communication terminal can act as a micro base station to further provide a data interface to the accessed user equipment.Terminals can also be drones, Internet of Things (IoT) devices, stations (STs) in wireless local area networks (WLANs), cellular phones, smartphones, cordless phones, wireless data cards, tablets, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistant (PDA) devices, laptop computers, machine type communication (MTC) terminals, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices (also known as wearable smart devices), virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in remote medical care, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in smart grids, and transportation security devices. Wireless terminals in smart cities, smart homes, etc., can be used in various contexts such as safety, security, and safety. The terminal can also be a terminal in a 5G system or a terminal in a next-generation communication system; this application does not limit the specific application to these possibilities.

[0092] The embodiments of this application do not limit the device form of the terminal. The device used to implement the functions of the terminal can be a complete machine; it can also be a device that supports the terminal in implementing the functions, such as a chip system. The device can be installed in the terminal or used in conjunction with the terminal. In the embodiments of this application, the chip system can be composed of chips, or it can include chips and other discrete components.

[0093] In one possible implementation, the terminal and terminal device in this application can be used interchangeably. The following description uses a terminal as an example and should not be regarded as a limitation of this application.

[0094] II. Network Equipment

[0095] A network device is an entity on the network side used to transmit signals, or receive signals, or both. A network device can be a means deployed in a radio access network (RAN) to provide wireless communication functionality to terminals.

[0096] In one possible scenario, network equipment can be devices with base station functions, such as evolved NodeBs (eNodeBs), transmitting and receiving points (TRPs), transmitting points (TPs), next-generation NodeBs (gNBs), base stations in future mobile communication systems, and integrated access and backhaul (IAB) nodes. Network equipment can also be transmission reception points (TRPs), base stations, and various forms of control nodes, such as network controllers and wireless controllers. Specifically, network equipment can be various forms of macro base stations, micro base stations (also known as small cells) in heterogeneous network (HetNet) scenarios, relay stations, access points (APs), radio network controllers (RNCs), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved node Bs, or home node Bs (HNBs)), baseband units (BBUs) and remote radio units (RRUs) in distributed base station scenarios, transmitting and receiving points (TRPs), transmitting points (TPs), mobile switching centers, etc., or even base station antenna panels. Control nodes can connect to multiple base stations and configure resources for multiple terminals covered by multiple base stations. Network equipment can also be satellites (or satellite base stations) or high altitude platform stations (HAPS), or base station equipment mounted on satellites / HAPSs. The satellite may include at least one of the following: a geostationary earth orbit (GEO) satellite (or geosynchronous orbit satellite) or a non-geostationary earth orbit (NGEO).Non-geostationary orbit satellites may include at least one of the following: medium Earth orbit (MEO) satellites or low Earth orbit (LEO) satellites. No limitation is made here. Network equipment may also be a gateway station (or ground station, earth station, signaling station, gateway, or gateway station), etc. In systems employing different wireless access technologies, the name of equipment with base station functions may vary. For example, it could be a gNB in ​​5G, or a network device in a network after 5G, or a network device in a future evolved public land mobile network (PLMN) network, or a device that performs base station functions in device-to-device (D2D) communication, machine-to-machine (M2M) communication, or vehicle-to-everything (V2X) communication, etc. This application does not limit the specific name of the network equipment. Network equipment may also be an open RAN (O-RAN or ORAN), a baseband pool (BBU pool) and RRU under a cloud radio access network (CRAN), etc.

[0097] In another possible scenario, multiple network devices collaborate to assist terminals in achieving wireless access, with each network device performing a portion of the base station's functions. For example, network devices may include a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). CUs and DUs can be separate entities or included in the same network element, such as a baseband unit (BBU). RUs may be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs). It is understood that network devices can be CU nodes, DU nodes, or devices comprising both CU and DU nodes. Furthermore, CUs can be classified as network devices in the access network (RAN) or in the core network (CN), without limitation.

[0098] In different systems, CU (or CU-CP and CU-UP), 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 O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0099] In this application embodiment, network devices deployed in the air can be referred to as NTN devices, and network devices deployed on the ground can be referred to as TN devices. That is, an NTN communication system includes at least one NTN device, and network devices in a TN communication system are TN devices. A TN device, relative to an NTN device, is a stationary or slower-moving network device. In other words, an NTN device, relative to a TN device, can be a high-speed mobile network device.

[0100] NTN equipment can include satellites, high-altitude platforms (HAPs), drones, or hot air balloons, etc., without limitation. Satellites can be medium Earth orbit (MEO) satellites, low Earth orbit (LEO) satellites, high altitude platform stations (HAPS), evolved NodeBs (eNBs), or 5G base stations (gNBs), etc.

[0101] In the case of NTN equipment being satellites, the satellites may have different functions in different scenarios, specifically:

[0102] 1. In Figure 2 In a transparent satellite architecture shown in Figure 2-1, the radio access network (RAN) may include remote radio units (RRUs) and base stations (such as...). Figure 2The RRU can include a satellite and an NTN gateway. The satellite is used for radio frequency filtering and frequency conversion and amplification to ensure that the waveform signal repeated by the payload remains unchanged. That is, the satellite primarily acts as a Layer 1 (L1) relay device, used to regenerate physical layer signals (i.e., radio frequency filtering, frequency conversion, and amplification), without involving other higher protocol layers. The NTN gateway supports all functions for forwarding new radio-Uu (NR-Uu) interface signals. The NR-Uu interface is the interface between the terminal and the base station in the protocol.

[0103] 2. In Figure 2 In the regenerative satellite architecture without inter-satellite link shown in Figure 2-2, the RAN includes satellites and NTN gateways. The satellites act as base stations, possessing base station processing functions. The NTN gateway is a transport network layer node and supports the corresponding transport protocols. The satellites and NTN gateways are connected via a satellite radio interface (SRI), with the NG interface (NG over SRI) responsible for higher-level information transmission.

[0104] 3. In Figure 2 In a regenerative satellite architecture with inter-satellite links, as shown in Figures 2-3, and... Figure 2 Similar to 2-2, the difference is that SRI exists, and multiple satellites can be connected via the Xn interface. The Xn interface is carried over SRI.

[0105] 4. In Figure 2In a regenerative satellite architecture with distributed unit (DU) processing capabilities, as shown in Figure 2-4, the satellite acts as a DU within the base station, jointly performing base station functions with the central unit (CU). An NTN gateway exists between the DU on the satellite and the CU on the ground. The NTN gateway is a transport network layer node that supports the corresponding transport protocols. The satellite and the NTN gateway are connected via an F1 interface, which is carried over the SRI (F1 over SRI).

[0106] 5. In a satellite architecture with integrated access and backhaul (IAB) functionality, the satellite acts as a base station with IAB functionality.

[0107] Among them, when the satellite acts as a Layer 1 relay device (i.e. Figure 2 In the transparent satellite architecture shown in Figure 2-1, the communication system may further include a base station. The base station can be an evolved universal terrestrial radio access (E-UTRA) system, an NR system, or a future radio access system as defined in the 3rd generation partnership project (3GPP). It can also be a WiFi system, enhanced mobile broadband (eMBB), ultra-reliable low latency communication (URLLC), massive machine-type communication (mMTC), a long-range Internet of Things (LoRa) system, or a vehicle-to-everything (V2X) system. The base station may also include two or more of the above-mentioned different radio access systems. The base station may also be an open radio access network (RAN) (O-RAN).

[0108] In this embodiment, the form of the network device is not limited. The device used to implement the function of the network device can be a complete machine; or it can be a device that supports the network device in implementing the function, such as a chip system. The device can be installed in the network device or used in conjunction with the network device.

[0109] In one possible implementation, the network device and network apparatus in this application can be used interchangeably. The following description uses a network device as an example and should not be regarded as a limitation of this application.

[0110] To facilitate understanding of the content of this solution, some terms used in the embodiments of this application will be explained below, so that those skilled in the art can understand them. This part is only for the purpose of understanding and should not be regarded as a specific limitation of this application.

[0111] I. Frequency Band

[0112] In this application, a frequency band may be referred to as a frequency range. The frequency range may include an interval defined by a maximum frequency and a minimum frequency, and may include or exclude boundary points, such as the maximum frequency and / or the minimum frequency, without limitation herein.

[0113] In one possible implementation, the frequency band may include an uplink frequency band and / or a downlink frequency band, wherein the uplink frequency band is used for uplink communication between the terminal and the network device, and the downlink frequency band is used for downlink communication between the terminal and the network device.

[0114] As an example, the uplink and downlink frequency bands may not overlap. For instance, the uplink and downlink frequency bands may each be a non-overlapping frequency range within frequency range (FR) 1. Alternatively, the uplink and downlink frequency bands may each be a non-overlapping frequency range within FR 2.

[0115] As another example, the uplink and downlink frequency bands may overlap. In this application, 'overlap' refers to partial or complete overlap. Complete overlap can mean that the uplink and downlink frequency bands are the same. For example, both the uplink and downlink frequency bands are FR1. Or, both the uplink and downlink frequency bands are FR2.

[0116] In one possible implementation, the frequency band in this application can be an operating band. For example, the uplink band can be the uplink operating band within the operating band, and the downlink band can be the downlink operating band within the operating band. Here, the operating band refers to a frequency range predefined by the protocol.

[0117] Among them, some or all of the different operating frequency bands can correspond to the same parameters, which may include at least one of the following: radio frequency performance requirements, duplex mode, channel bandwidth (CB), subcarrier spacing (SCS), or synchronization grid, etc.

[0118] Radio frequency (RF) specifications may include transmit power, among other things.

[0119] The duplex mode can include at least one of the following: time division duplex (TDD) mode or frequency division duplex (FDD) mode, supplementary downlink (SDL) mode or supplementary uplink (SUL) mode. That is, some or all of the operating frequency bands in different operating frequency bands can correspond to the same duplex mode.

[0120] For example, in Table 1, each operating frequency band has a corresponding number and a lower frequency boundary (F) for uplink transmission (e.g., transmission from terminal to network device). UL_low ) and upper frequency boundary (F UL_high The lower frequency boundary (F) of downlink transmission (e.g., transmission from network device to terminal). DL_low ) and upper frequency boundary (F DL_high The frequency range formed by the lower and upper frequency boundaries of uplink transmission can be denoted as the uplink working frequency band, and the frequency range formed by the lower and upper frequency boundaries of downlink transmission can be denoted as the downlink working frequency band. In Table 1, all working frequency bands (i.e., uplink and downlink working frequency bands) in working frequency band numbered n1 and all working frequency bands (i.e., uplink and downlink working frequency bands) in working frequency band numbered n2 correspond to FDD mode.

[0121] Table 1

[0122]

[0123] In cases where the duplex mode corresponding to the operating frequency band is TDD mode, the uplink and downlink frequency bands within the operating frequency band overlap, such as partially or completely. For example, in Table 1, the operating frequency band numbered n34 has an uplink frequency band of 2010MHz-2025MHz and a downlink frequency band of the same range. That is, the uplink and downlink frequency bands completely overlap.

[0124] When the duplex mode corresponding to the frequency band is FDD mode, the uplink and downlink frequency bands in the operating frequency band do not overlap. For example, in Table 1, the operating frequency band numbered n1 has an uplink frequency band of 1920MHz-1980MHz and a downlink frequency band of 2110MHz-2170MHz. That is, the uplink and downlink frequency bands do not overlap.

[0125] When the duplex mode corresponding to a frequency band is SDL or SUL, it indicates that the operating frequency bands are independent and unpaired. For example, when the duplex mode corresponding to a frequency band is SDL, the operating frequency band contains only the downlink band. For example, in Table 1, numbered n29 19 The operating frequency band consists only of the downlink band (717MHz-728MHz). Similarly, when the duplex mode corresponding to the frequency band is SUL mode, the operating frequency band consists only of the uplink band.

[0126] Channel bandwidth refers to the fixed bandwidths supported by the terminal, such as 5MHz or 10MHz. NR supports channel bandwidths from 5MHz to 400MHz. In this case, some or all operating frequency bands in different operating frequency bands can correspond to the same channel bandwidth. For example, the uplink operating frequency band in operating frequency band #1 and the uplink operating frequency band in operating frequency band #2 correspond to the same channel bandwidth. Or, the uplink operating frequency band in operating frequency band #1 and the downlink operating frequency band in operating frequency band #2 correspond to the same channel bandwidth. Or, the downlink operating frequency band in operating frequency band #1 and the uplink operating frequency band in operating frequency band #2 correspond to the same channel bandwidth. Or, the downlink operating frequency band in operating frequency band #1 and the downlink operating frequency band in operating frequency band #2 correspond to the same channel bandwidth. Or, all frequency bands in operating frequency band #1 (i.e., uplink and downlink operating frequency bands) and all frequency bands in operating frequency band #2 (i.e., uplink and downlink operating frequency bands) correspond to the same channel bandwidth.

[0127] A synchronization grid refers to the frequency domain location of a candidate synchronization signal block (SSB). A candidate SSB is an SSB that a network device may transmit. The frequency domain location of a candidate SSB includes the frequency domain location of a reference subcarrier within the candidate SSB. The reference subcarrier is typically the center subcarrier of the candidate SSB; for example, the reference subcarrier might be subcarrier numbered 120 out of 240 consecutive subcarriers occupied by the candidate SSB. In this case, some or all of the operating frequency bands in different operating frequency bands can correspond to the same synchronization grid. For example, the uplink operating frequency band in operating frequency band #1 and the uplink operating frequency band in operating frequency band #2 correspond to the same synchronization grid. Alternatively, the uplink operating frequency band in operating frequency band #1 and the downlink operating frequency band in operating frequency band #2 correspond to the same synchronization grid. Alternatively, the downlink operating frequency band in operating frequency band #1 and the uplink operating frequency band in operating frequency band #2 correspond to the same synchronization grid. Alternatively, the downlink operating frequency band in operating frequency band #1 and the downlink operating frequency band in operating frequency band #2 correspond to the same synchronization grid. Alternatively, all frequency bands in operating frequency band #1 (i.e., uplink and downlink operating frequency bands) and all frequency bands in operating frequency band #2 (i.e., uplink and downlink operating frequency bands) correspond to the same synchronization grid.

[0128] In one possible implementation, some or all of the operating frequency bands in different operating frequency bands may belong to frequency range (FR)1 or FR2. For example, the uplink operating frequency band in operating frequency band #1 and the uplink operating frequency band in operating frequency band #2 both belong to FR1 or FR2. Alternatively, the uplink operating frequency band in operating frequency band #1 and the downlink operating frequency band in operating frequency band #2 both belong to FR1 or FR2. Alternatively, the downlink operating frequency band in operating frequency band #1 and the downlink operating frequency band in operating frequency band #2 both belong to FR1 or FR2. Alternatively, all frequency bands in operating frequency band #1 (i.e., both uplink and downlink operating frequency bands) and all frequency bands in operating frequency band #2 (i.e., both uplink and downlink operating frequency bands) both belong to FR1 or FR2.

[0129] II. Geographical Regions

[0130] In this application, the geographical area may partially or completely overlap with the coverage area of ​​at least one network device. For example, the geographical area comprised of multiple geographical areas may be the coverage area of ​​at least one network device; that is, the coverage area of ​​at least one network device may be divided into one or more geographical areas. For instance, in... Figure 3 In Figure 3-1, the ellipse represents the satellite's coverage area, and the dashed line indicates the division of the satellite's coverage area, that is, the satellite's coverage area is divided into geographic region #0, geographic region #1, geographic region #2, and geographic region #3. Alternatively, the geographic area formed by multiple geographic regions may be larger than the coverage area of ​​any single network device in at least one network device. For example, in... Figure 3 In Figure 3-2, the ellipse represents the satellite's coverage area, and the four regions formed by the dashed lines represent geographic region #0, geographic region #1, geographic region #2, and geographic region #3. The area of ​​these four regions is larger than the satellite's coverage area. Figure 3 This is merely one exemplary method of division; other methods can be used in practical applications. For example, geographical regions can be divided using circles, near-circles, squares, near-squares, rectangles, or near-rectangles. This application does not specifically limit the number of geographical regions or the method of dividing them.

[0131] In one possible implementation, a geographical region is not equivalent to a cell, for example, in Figure 3 In section 3-2, it cannot be assumed that the satellite's coverage area is divided into four cells. Rather, it should be understood as the satellite's coverage area being divided into four geographical regions. In other words, the geographical regions can partially overlap with the actual coverage areas of the cells.

[0132] III. Reference Signal (RS)

[0133] Reference signals, also known as pilot signals, can be used for channel estimation (or channel measurement). For example, reference signals can be sounding reference signals (SRS), tracking reference signals (TRS), phase tracking reference signals (PTRS), channel state information reference signals (CSI-RS), demodulation reference signals (DMRS), positioning reference signals (PRS), synchronization signal blocks (SSB), or other reference signals or pilots defined by future standards / protocols; no specific limitations are imposed here.

[0134] IV. Frequency Domain Resources

[0135] In this application, frequency domain resources refer to a segment of continuous or discontinuous resources in the frequency domain. For example, frequency domain resources can be characterized by subcarriers, resource blocks (RBs), resource block groups (RBGs), sub-channels, bandwidth parts (BWPs), or carriers. For instance, taking the representation of frequency domain resources by subcarriers as an example, frequency domain resources can be understood as one or more continuous subcarriers in the frequency domain, and / or one or more discontinuous subcarriers. Alternatively, frequency domain resources can be characterized by a control resource set (CORESET). The control resource set can be control resource set zero (CORESET0) or a regular CORESET, without limitation herein.

[0136] V. Terminal Location Information

[0137] The location information of the terminal may include at least one of the following: longitude, latitude, or altitude. Alternatively, the location information of the terminal may be information about the geographical area where the terminal is located.

[0138] For example, if the geographic region is circular or approximately circular, the information of the geographic region may include the center coordinates and / or radius of the geographic region. If the geographic region is elliptical or approximately elliptical, the information of the geographic region may include at least one of the following: the center coordinates of the geographic region, the radius of the major axis, the radius of the minor axis, the direction of the major axis, or the direction of the minor axis. If the geographic region is square or approximately square, the information of the geographic region may include at least one of the following: the center coordinates of the geographic region, the length of the side, or the direction of one of the side lengths. If the geographic region is rectangular or approximately rectangular, the information of the geographic region may include at least one of the following: the center coordinates of the geographic region, the length of the long side, the length of the short side, the direction of the long side, or the direction of the short side. The center coordinates of the geographic region may be based on a specified coordinate system, such as the earth-centered earth-fixed (ECEF) coordinate system.

[0139] In one possible implementation, the information about the geographic region may further include an identifier for the geographic region. The identifier for the geographic region may be a geographic region number or index, and this application does not limit this to that.

[0140] The embodiments of this application will be described in detail below.

[0141] See Figure 4 , Figure 4 This is a flowchart illustrating a communication method provided in an embodiment of this application. For example... Figure 4 As shown, the method includes, but is not limited to, the following steps:

[0142] 401. A first network device / second network device sends first configuration information, which includes N resource groups, including a first resource group. The first resource group is used for communication between terminals located in a first geographical area and the first network device. N is a positive integer. The first resource group includes first uplink resources and / or first downlink resources. The first uplink resources are used for uplink communication between terminals located in the first geographical area and the first network device. The frequency band of the first uplink resources overlaps with the frequency band of the second downlink resources. The second downlink resources are used for downlink communication between terminals located in the first geographical area and the second network device. The first uplink resources and the second downlink resources do not overlap. Alternatively, the first downlink resources are used for downlink communication between terminals located in the first geographical area and the first network device. The frequency band of the first downlink resources overlaps with the frequency band of the second uplink resources. The second uplink resources are used for uplink communication between terminals located in the first geographical area and the second network device. The first downlink resources and the second uplink resources do not overlap.

[0143] Accordingly, the terminal receives the first configuration information.

[0144] For ease of understanding, the resource groups involved in this application are introduced below.

[0145] In this application, a resource group (such as a first resource group) can be used for terminals located within a geographical area to communicate with a first network device and / or a second network device (including uplink and / or downlink communication). For example, the resource group may include at least one of the following (e.g., all of the following, or multiple of the following, or one of the following): resources for uplink communication with the first network device, resources for downlink communication with the first network device, resources for uplink communication with the second network device, or resources for downlink communication with the second network device. The resources here may include frequency domain resources. Optionally, in practical applications, the resources in the resource group may also include other types of resources, such as time domain resources, etc., which are not limited here.

[0146] The number of resources communicating uplink with the first network device can be one or more. The number of resources communicating downlink with the first network device can be one or more. The number of resources communicating uplink with the second network device can be one or more. The number of resources communicating downlink with the second network device can be one or more.

[0147] When there are multiple resources communicating uplink with the first network device, one of these resources can be set as the default uplink resource. For example, taking BWP as an example, assuming that uplink BWP#0 to uplink BWP#3 can all be used for uplink communication with the first network device, uplink BWP#0 can be set as the default uplink BWP.

[0148] When there are multiple resources communicating downlink with the first network device, one of these resources can be set as the default downlink resource. For example, taking BWP as an example, assuming that downlink BWP#4 to downlink BWP#7 can all be used for downlink communication with the first network device, downlink BWP#4 can be set as the default downlink BWP.

[0149] When there are multiple resources communicating uplink with the second network device, one of them can be set as the default uplink resource. For example, taking BWP as an example, assuming that uplink BWP#8 to uplink BWP#11 can all be used for uplink communication with the second network device, uplink BWP#8 can be set as the default uplink BWP.

[0150] When there are multiple resources for downlink communication with the second network device, one of these resources can be set as the default downlink resource. For example, taking BWP as an example, assuming that downlink BWP#12 to downlink BWP#14 can all be used for downlink communication with the second network device, downlink BWP#12 can be set as the default downlink BWP.

[0151] In one possible implementation, the frequency band to which the resource communicates uplink with the first network device belongs can be the uplink frequency band of the first network device, the frequency band to which the resource communicates downlink with the first network device belongs can be the downlink frequency band of the first network device, the frequency band to which the resource communicates uplink with the second network device belongs can be the uplink frequency band of the second network device, and the frequency band to which the resource communicates downlink with the second network device belongs can be the downlink frequency band of the second network device.

[0152] For example, the first uplink resource is used for uplink communication between a terminal located in the first geographical area and the first network device. Therefore, the first uplink resource can be regarded as a resource for uplink communication with the first network device, and the frequency band to which the first uplink resource belongs can be the uplink frequency band of the first network device.

[0153] For example, the first downlink resource is used for downlink communication between a terminal located in a first geographical area and a first network device. Therefore, the first downlink resource can be regarded as a resource for downlink communication with the first network device, and the frequency band to which the first downlink resource belongs can be the downlink frequency band of the first network device.

[0154] For example, the second uplink resource is used for uplink communication between a terminal located in the first geographical area and the second network device. Therefore, the second uplink resource can be regarded as a resource for uplink communication with the second network device, and the frequency band to which the second uplink resource belongs can be the uplink frequency band of the second network device.

[0155] For example, the second downlink resource is used for downlink communication between a terminal located in the first geographical area and a second network device. Therefore, the second downlink resource can be regarded as a resource for downlink communication with the second network device, and the frequency band to which the second downlink resource belongs can be the downlink frequency band of the second network device.

[0156] In one possible implementation, the uplink bandwidth of the first network device and the downlink bandwidth of the second network device may overlap. This can improve spectrum utilization.

[0157] For example, taking the operating frequency band numbered n1 as an example, the uplink frequency band of the first network device and the downlink frequency band of the second network device are both uplink frequency bands within this operating frequency band, and the downlink frequency band of the first network device and the uplink frequency band of the second network device are both downlink frequency bands within this operating frequency band. Alternatively, the uplink frequency band of the first network device and the downlink frequency band of the second network device are both downlink frequency bands within this operating frequency band, and the downlink frequency band of the first network device and the uplink frequency band of the second network device are both uplink frequency bands within this operating frequency band. Alternatively, the uplink frequency band of the first network device and the downlink frequency band of the second network device are a frequency range that partially or completely overlaps within the uplink frequency band of this operating frequency band, and the downlink frequency band of the first network device and the uplink frequency band of the second network device are a frequency range that partially or completely overlaps within the downlink frequency band of this operating frequency band. Alternatively, the uplink frequency band of the first network device and the downlink frequency band of the second network device are a frequency range that partially or completely overlaps within the downlink frequency band of this operating frequency band, and the downlink frequency band of the first network device and the uplink frequency band of the second network device are a frequency range that partially or completely overlaps within the uplink frequency band of this operating frequency band. In other words, the relationship between the uplink frequency band of the first network device and the downlink frequency band of the second network device can be referred to as reverse spectrum pairing, reverse pairing, reverse spectrum pairing, or reverse paired spectrum, etc. Similarly, the relationship between the downlink frequency band of the first network device and the uplink frequency band of the second network device can be referred to as reverse spectrum pairing, reverse pairing, reverse spectrum pairing, or reverse paired spectrum, etc.

[0158] In one possible implementation, the resources for uplink communication with the first network device and the resources for downlink communication with the second network device do not overlap, and the resources for downlink communication with the first network device and the resources for uplink communication with the second network device do not overlap. For example, in Figure 5 In this context, resource group #0 includes BWP#0, BWP#1, BWP#2, and BWP#3. BWP#0 in resource group #0 is used for uplink communication between terminals in geographic area #0 and satellite #0. BWP#1 in resource group #0 is used for downlink communication between terminals in geographic area #0 and satellite #0. BWP#2 in resource group #0 is used for uplink communication between terminals in geographic area #0 and satellite #1. BWP#3 in resource group #0 is used for downlink communication between terminals in geographic area #0 and satellite #1. BWP#0 and BWP#3 in resource group #0 do not overlap, as do BWP#1 and BWP#2 in resource group #0.

[0159] The following section describes step 401 in conjunction with the above content.

[0160] In step 401, the specific network device that sends the first configuration information can be determined by referring to either Case 1 or Case 2.

[0161] Scenario 1: Terminals located in a specific geographical area (e.g., a first geographical area or a second geographical area) can operate using carrier aggregation, dual connectivity, or cooperative multipoint transmission modes, meaning the terminal can communicate with multiple network devices simultaneously. For example, the terminal can communicate with a first network device and a second network device simultaneously. In this case, the terminal can obtain the corresponding resource configuration through any of the following methods:

[0162] Method 1: The first network device or the second network device may indicate to the terminal at least one of the following (e.g., including all of the following, or including more than one of the following, or including one of the following): resources for uplink communication with the first network device, resources for downlink communication with the first network device, resources for uplink communication with the second network device, or resources for downlink communication with the second network device.

[0163] For example, a first network device or a second network device may send first configuration information (including N resource groups). Any one of the N resource groups may include at least one of the following (e.g., all of the following, or multiple of the following, or one of the following): resources for uplink communication with the first network device, resources for downlink communication with the first network device, resources for uplink communication with the second network device, or resources for downlink communication with the second network device. For instance, taking the first resource group among the N resource groups as an example, the first resource group may include at least one of the following (e.g., all of the following, or multiple of the following, or one of the following): a first uplink resource, a first downlink resource, a second uplink resource, or a second downlink resource. That is, the first resource group can be used for terminals located in a first geographical area to communicate with the first network device (including uplink and / or downlink communication), and / or, the first resource group can be used for terminals located in the first geographical area to communicate with the second network device (including uplink and / or downlink communication).

[0164] In Method 1, the resources for communicating with the first network device and / or the second network device (including uplink and / or downlink communication) can be configured or predefined by the first network device, the second network device, or other devices. Other devices may include operation administration and management (OAM) devices or third network devices.

[0165] For example, a first network device can indicate its available resources to a second network device. The second network device, based on the available resources of both devices, determines N resource groups and indicates these N resource groups to the first network device. Alternatively, the first network device can indicate its available resources to other devices, and the second network device can also indicate its available resources to other devices. These other devices can then determine N resource groups based on the available resources of both devices and indicate them to the first network device. (This is repeated three times in the original text.)

[0166] Method 2: The first network device can indicate to the terminal resources for uplink communication with the first network device and / or resources for downlink communication with the first network device. The second network device can indicate to the terminal resources for uplink communication with the second network device and / or resources for downlink communication with the second network device.

[0167] For example, the first network device may send first configuration information (including N resource groups), where any one of the N resource groups may include resources for uplink communication with the first network device and / or resources for downlink communication with the first network device. For instance, taking the first resource group among the N resource groups as an example, the first resource group may include first uplink resources and / or first downlink resources. That is, the first resource group can be used for terminals located in the first geographical area to communicate with the first network device (including uplink and / or downlink communication). Alternatively, the first resource group is only used for terminals located in the first geographical area to communicate with the first network device (including uplink and / or downlink communication).

[0168] For example, the second network device can send second configuration information (including M resource groups, where M is a positive integer). Any one of the M resource groups can include resources for uplink communication and / or downlink communication with the second network device. For instance, taking the second resource group among the M resource groups, the second resource group can include second uplink resources and / or second downlink resources. That is, the second resource group can be used for terminals located in the first geographical area to communicate with the second network device (including uplink and / or downlink communication). Alternatively, the second resource group can only be used for terminals located in the first geographical area to communicate with the first network device (including uplink and / or downlink communication).

[0169] In Method 2, the resources for communicating with the first network device (including uplink and / or downlink communication) can be configured or predefined by the first network device, the second network device, or other devices.

[0170] For example, a first network device can indicate its available resources to a second network device, which then determines N resource groups based on the first network device's available resources and indicates these N resource groups to the first network device. Alternatively, a first network device can indicate its available resources to other devices, which can then determine N resource groups based on the first network device's available resources and indicate them to the first network device.

[0171] In Method 2, the resources for communicating with the second network device (including uplink and / or downlink communication) can be configured or predefined by the first network device, the second network device, or other devices.

[0172] For example, a second network device can indicate its available resources to a first network device. The first network device then determines M resource groups based on the available resources of the second network device and indicates these M resource groups to the second network device. Alternatively, the second network device can indicate its available resources to other devices. These other devices can then determine M resource groups based on the available resources of the second network device and indicate them to the second network device.

[0173] Scenario 2: Terminals located in a specific geographical area (such as a first geographical area or a second geographical area) can operate in a manner other than carrier aggregation, dual connectivity, and cooperative multipoint transmission. For example, the terminal can communicate with a network device. For instance, the terminal can communicate with either a first network device or a second network device. When the terminal communicates with the first network device, the way the terminal learns the corresponding resource configuration can refer to the method described in Scenario 2 above, where the first network device indicates resources to the terminal. When the terminal communicates with the second network device, the way the terminal learns the corresponding resource configuration can refer to the method described in Scenario 2 above, where the second network device indicates resources to the terminal.

[0174] In one possible implementation, in either scenario one or scenario two described above, the first configuration information or the second configuration information may be carried in a radio resource control (RRC) message, a media access control-control element (MAC CE), downlink control information (DCI), a broadcast message, or other messages, without limitation herein.

[0175] The broadcast message can be an existing broadcast message or a newly added broadcast message. An existing broadcast message can be a broadcast message in an existing version of a communication standard. For example, a broadcast message can be a system information block (SIB) 1 or a master information block (MIB), etc. The specific naming of the broadcast message does not limit the scope of protection of this application. A newly added broadcast message can be a newly defined broadcast message, such as a broadcast message in a future communication standard.

[0176] In one possible implementation, the first configuration information may further include the identifiers of each resource group in the N resource groups and / or information about the geographical areas to which each resource group applies. Similarly, the second configuration information may further include the identifiers of each resource group in the M resource groups and / or information about the geographical areas to which each resource group applies. In this way, the terminal can determine, based on its own location information and the geographical areas to which these resource groups (such as the N resource groups and / or the M resource groups) apply, that the geographical area where the terminal is located belongs to one of the geographical areas to which that resource group applies, and thus use that resource group for communication. For example, taking the first resource group as an example, the terminal can determine, based on its own location information, that the geographical area where the terminal is located belongs to the geographical area to which the first resource group applies, and thus can use the first resource group for communication.

[0177] The identifier of the resource group can be the resource group number or index, or it can be the mapped cell ID; this application does not limit this.

[0178] The following section introduces the content related to resource switching, based on the resources indicated by the first configuration information or the second configuration information.

[0179] In one possible implementation, the N resource groups in the first configuration information may also include a third resource group.

[0180] When a first network device or a second network device indicates to a terminal via first configuration information the resources for communicating (including uplink and / or downlink) with the first network device and / or the second network device, a third resource group is used for a terminal located in a second geographical area to communicate (including uplink and / or downlink) with the first network device. And / or, the third resource group is used for a terminal located in a second geographical area to communicate (including uplink and / or downlink) with the second network device. For example, the third resource group may include at least one of the following (e.g., including all of the following, or including multiple of the following, or including one of the following): a third uplink resource, a third downlink resource, a fourth uplink resource, or a fourth downlink resource.

[0181] Specifically, the third uplink resource is used for uplink communication between terminals located in the second geographical region and the first network device; the third downlink resource is used for downlink communication between terminals located in the second geographical region and the first network device; the fourth uplink resource is used for uplink communication between terminals located in the second geographical region and the second network device; and the fourth downlink resource is used for downlink communication between terminals located in the second geographical region and the second network device. In one possible implementation, the frequency band of the third uplink resource overlaps with the frequency band of the fourth downlink resource; the third uplink resource and the fourth downlink resource do not overlap; the frequency band of the third downlink resource overlaps with the frequency band of the fourth uplink resource; and the third downlink resource and the fourth uplink resource do not overlap.

[0182] When the first network device indicates to the terminal via the first configuration information the resources for communication (including uplink and / or downlink) with the first network device, the third resource group is used only for terminals located in the second geographical area to communicate (including uplink and / or downlink) with the first network device. For example, the third resource group may include third uplink resources and / or third downlink resources. In this case, the M resource groups in the second configuration information also include a fourth resource group, which is used for terminals located in the second geographical area to communicate (including uplink and / or downlink) with the second network device. For example, the fourth resource group may include fourth uplink resources and / or fourth downlink resources.

[0183] In the case where the terminal moves from the first geographical area to the second geographical area, the terminal can, in conjunction with the above content, instruct the first network device or the second network device that the terminal has moved.

[0184] For example, when a terminal moves from a first geographic area to a second geographic area, the terminal may proactively send a first indication message to a first network device or a second network device. Alternatively, the terminal may send the first indication message to the first network device or the second network device based on a relevant event in the first configuration information. For instance, the first configuration information may also include a first event, which indicates that the first indication message should be sent when the terminal moves from the first geographic area to the second geographic area. In one possible implementation, when the first network device indicates to the terminal, via the first configuration information, resources for communication (including uplink and / or downlink communication) with the first network device and / or the second network device, the terminal may send the first indication message to the first network device. When the second network device indicates to the terminal, via the first configuration information, resources for communication (including uplink and / or downlink communication) with the first network device and / or the second network device, the terminal may send the first indication message to the second network device.

[0185] The first indication information is used to request communication based on the third resource group. This first indication information indicates at least one of the following: the identifier of the second geographic area, the identifier of the third resource group, the location information of the terminal, the terminal moving from the first geographic area to the second geographic area, or the terminal switching from the first resource group to the third resource group. This allows network devices to be aware that the terminal has moved. This helps ensure consistency between the terminal and network devices in their understanding of the resources used within the geographic area, reducing communication failures caused by inconsistent understanding.

[0186] For example, when a terminal moves from a first geographic region to a second geographic region, the terminal may proactively send a third indication message to the second network device, or the terminal may send the third indication message to the second network device based on a relevant event in the second configuration information. For instance, the second configuration information may also include a second event, which is used to indicate sending the third indication message when the terminal moves from the first geographic region to the second geographic region.

[0187] The third indication information is used to request communication based on the fourth resource group. This third indication information indicates at least one of the following: the identifier of the second geographic area, the identifier of the fourth resource group, the location information of the terminal, the terminal moving from the first geographic area to the second geographic area, or the terminal switching from the second resource group to the fourth resource group. This allows network devices to be aware that the terminal has moved. This helps ensure consistency between the terminal and network devices in their understanding of the resources used within the geographic area, reducing communication failures caused by inconsistent understanding.

[0188] In one possible implementation, the first or third indication information may be carried in an RRC message, uplink control information (UCI), or other messages, without limitation. For example, taking a BWP as the resource in the resource group, the first or third indication information may be carried in a BWP handover request message, which may be an RRC message, UCI, or other messages, without limitation.

[0189] In one possible implementation, when the terminal moves to a second geographical area, it can perform resource switching, including at least one of the following: switching from a first uplink resource to a third uplink resource, switching from a first downlink resource to a third downlink resource, switching from a second uplink resource to a fourth uplink resource, or switching from a second downlink resource to a fourth downlink resource. This ensures that the terminal uses the correct resources for communication in the second geographical area, which helps reduce communication failures.

[0190] As an example, when a terminal moves to a second geographical region, it can switch to a default resource. For instance, the terminal can switch from a first uplink resource to a default resource in a third resource group for uplink communication with the first network device, such as the third uplink resource. Alternatively, the terminal can switch from a first downlink resource to a default resource in a third resource group for downlink communication with the first network device, such as the third downlink resource. Or, the terminal can switch from a second uplink resource to a default resource in a third or fourth resource group for uplink communication with the second network device, such as the fourth uplink resource. Alternatively, the terminal can switch from a second downlink resource to a default resource in a third or fourth resource group for downlink communication with the second network device, such as the fourth downlink resource.

[0191] As another example, if a terminal moves to a second geographical area, it can perform a resource handover as instructed by network devices (such as a first network device and / or a second network device). In this case, the terminal can receive second and / or fourth instruction information.

[0192] For example, when the first network device indicates to the terminal, through the first configuration information, the terminal has the resources to communicate with the first network device and / or the second network device (including uplink communication and / or downlink communication), the terminal may receive the second indication information and / or the fourth indication information from the first network device.

[0193] For example, when the second network device indicates to the terminal, through the first configuration information, the terminal has the resources to communicate with the first network device and / or the second network device (including uplink communication and / or downlink communication), the terminal may receive the second indication information and / or the fourth indication information from the second network device.

[0194] For example, if a first network device indicates to a terminal, through first configuration information, resources for communicating with the first network device (including uplink and / or downlink communication), and a second network device indicates to a terminal, through second configuration information, resources for communicating with the second network device (including uplink and / or downlink communication), the terminal may receive second indication information from the first network device, and / or receive fourth indication information from the second network device.

[0195] The second indication information includes the identifier of the third uplink resource and / or the identifier of the third downlink resource, and the fourth indication information includes the identifier of the fourth uplink resource and / or the identifier of the fourth downlink resource.

[0196] For example, the second indication information may only include the identifier of the third uplink resource, allowing the terminal to switch from the first uplink resource to the third uplink resource based on this information. In this case, for the switching of the first downlink resource, the terminal can switch to the default resource. For instance, the terminal can switch from the first downlink resource to the default resource in the third resource group that enables downlink communication with the first network device, such as the third downlink resource.

[0197] For example, the second indication information only includes the identifier of the third downlink resource, and the terminal can switch from the first downlink resource to the third downlink resource based on the second indication information. In this case, for the switch of the first uplink resource, the terminal can switch to the default resource. For example, the terminal can switch from the first uplink resource to the default resource in the third resource group that communicates uplink with the first network device, such as the third uplink resource.

[0198] For example, the second indication information includes the identifier of the third uplink resource and the identifier of the third downlink resource. Based on the second indication information, the terminal can switch from the first uplink resource to the third uplink resource, and from the second downlink resource to the fourth downlink resource.

[0199] For example, the fourth indication information only includes the identifier of the fourth uplink resource, and the terminal can switch from the second uplink resource to the fourth uplink resource based on the fourth indication information. In this case, for the switch of the second downlink resource, the terminal can switch to the default resource. For example, the terminal can switch from the second downlink resource to the default resource in the third resource group for downlink communication with the second network device, such as the fourth downlink resource.

[0200] For example, the fourth indication information only includes the identifier of the fourth downlink resource, and the terminal can switch from the second downlink resource to the fourth downlink resource based on the fourth indication information. In this case, for the switch of the second uplink resource, the terminal can switch to the default resource. For example, the terminal can switch from the second uplink resource to the default resource in the third resource group for uplink communication with the second network device, such as the fourth uplink resource.

[0201] For example, the fourth indication information includes the identifier of the fourth uplink resource and the identifier of the fourth downlink resource. Based on the fourth indication information, the terminal can switch from the second uplink resource to the fourth uplink resource, and from the second downlink resource to the fourth downlink resource.

[0202] In one possible implementation, the second or fourth indication information may be carried in an RRC message, MAC CE, DCI, or other message, without limitation. For example, taking a BWP as the resource in the resource group, the second or fourth indication information may be carried in a BWP handover response message, which may be an RRC message, MACCE, DCI, or other message, without limitation.

[0203] In one possible implementation, in order to help the terminal determine which resources in the resource group are available, the terminal may also perform a measurement based on a first reference signal in the first reference signal set to obtain a first measurement result. The first measurement result is used to determine whether the resources associated with the first reference signal in the first resource group or the second resource group are available.

[0204] In one possible implementation, the first reference signal set may include one or more reference signals, each reference signal in the first reference signal set being associated with at least one resource in a first resource group, or each reference signal in the first reference signal set being associated with at least one resource in a second resource group. In one possible implementation, in this application, associating a reference signal with at least one resource in a resource group means that the resource occupied by the reference signal overlaps with at least one resource in the resource group. Therefore, by measuring the reference signal, it can be determined whether the resource associated with it is available.

[0205] The first set of reference signals may be predefined or indicated to the terminal by a network device (such as a first network device or a second network device). For example, the first or second network device may send third configuration information, which includes the first set of reference signals. In one possible implementation, if each reference signal in the first set of reference signals is associated with at least one resource in a first resource group, the first or second network device may send the third configuration information. If each reference signal in the first set of reference signals is associated with at least one resource in a second resource group, the second network device may send the third configuration information.

[0206] In one possible implementation, the first measurement result includes at least one of the following: a signal power value, a signal quality value, an interference power value, or a SINR measured based on a first reference signal. Wherein, the signal power value in this application may be the reference signal received power (RSRP), and the signal quality value in this application may be the reference signal received quality (RSRQ).

[0207] In one possible implementation, the terminal can determine whether the resource associated with the first reference signal in the first resource group or the second resource group is available based on the first measurement result described above.

[0208] For example, if a first condition is met, the resource associated with the first reference signal in the first resource group or the second resource group is unavailable. The first condition includes at least one of the following: a signal power value measured based on the first reference signal is less than or equal to a first threshold; a signal quality value measured based on the first reference signal is less than or equal to a second threshold; an interference power value measured based on the first reference signal is greater than or equal to a third threshold; or a SINR measured based on the first reference signal is less than or equal to a fourth threshold. Conversely, if a third condition is met, the resource associated with the first reference signal in the first resource group or the second resource group is available. The third condition includes at least one of the following: a signal power value measured based on the first reference signal is greater than or equal to the first threshold; a signal quality value measured based on the first reference signal is greater than or equal to the second threshold; an interference power value measured based on the first reference signal is less than or equal to the third threshold; or a SINR measured based on the first reference signal is greater than or equal to the fourth threshold. In one possible implementation, at least one of the first threshold value, the second threshold value, the third threshold value, and the fourth threshold value may be predefined or indicated to the terminal by the network device (the first network device or the second network device). For example, the third configuration information described above may also include at least one of the first threshold value, the second threshold value, the third threshold value, and the fourth threshold value.

[0209] In one possible implementation, the first set of reference signals may further include a second reference signal, and the terminal may perform measurements based on the second reference signal if the resource associated with the first reference signal in the first or second resource group is unavailable. For example, measurements may be performed based on the second reference signal if a first condition is met. This allows the terminal to determine whether the resource associated with the second reference signal in the first or second resource group is available.

[0210] In one possible implementation, the terminal can decide for itself whether to perform a measurement based on the second reference signal, or the terminal can determine whether to perform a measurement based on the second reference signal based on an instruction from a network device (such as a first network device or a second network device). For example, the third configuration information also includes a third event, which indicates that a measurement should be performed based on the second reference signal if a first condition is met. This allows the terminal to know, through the third event, under what circumstances a measurement should be performed based on the second reference signal. In one possible implementation, when there are multiple reference signals in a certain set of reference signals (such as a first set of reference signals), the order in which measurements are performed based on each reference signal in the set of reference signals can be predefined, or the terminal can decide for itself (e.g., the terminal decides the order based on its own resource needs. For example, the terminal may expect to send data to the first uplink resource in the first resource group, and the terminal may first measure the reference signal associated with the first uplink resource in the first set of reference signals), or the network device (such as a first network device or a second network device) can instruct the terminal. For example, the third configuration information mentioned above may also include the priority of each reference signal in the first reference signal set. The order in which measurements are performed based on each reference signal in the first reference signal set is determined by the priority of each reference signal in the first reference signal set. For instance, if the priority of the first reference signal is higher than the priority of the second reference signal, the terminal can perform measurements based on the first reference signal first, and then based on the second reference signal. Alternatively, if the priority of the second reference signal is higher than the priority of the first reference signal, the terminal can perform measurements based on the second reference signal first, and then based on the first reference signal.

[0211] In one possible implementation, the terminal may also perform measurements based on a second set of reference signals, provided that the second condition is met. The second condition includes at least one of the following: the terminal moves to a third geographic region (the third geographic region is associated with the first geographic region and / or the second geographic region); the signal power values ​​measured based on each reference signal in the first set of reference signals are all less than or equal to a first threshold; the signal quality values ​​measured based on each reference signal in the first set of reference signals are all less than or equal to a second threshold; the interference power values ​​measured based on each reference signal in the first set of reference signals are all greater than or equal to a third threshold; or the SINR measured based on each reference signal in the first set of reference signals is all less than or equal to a fourth threshold.

[0212] The second set of reference signals may include one or more reference signals. In one possible implementation, each reference signal in the first set of reference signals is associated with at least one resource in the first resource group, and each reference signal in the second set of reference signals is associated with at least one resource in the third resource group. Alternatively, each reference signal in the first set of reference signals is associated with at least one resource in the second resource group, and each reference signal in the second set of reference signals is associated with at least one resource in the fourth resource group.

[0213] In one possible implementation, the second set of reference signals may be predefined or indicated to the terminal by a network device (such as a first or second network device). For example, the third configuration information described above includes the second set of reference signals.

[0214] In one possible implementation, the terminal can decide independently whether to perform the measurement based on the second reference signal set, or the terminal can determine whether to perform the measurement based on the second reference signal set based on an instruction from the network device. For example, the third configuration information also includes a fourth event, which indicates that the measurement should be performed based on the second reference signal set if the second condition is met. This allows the terminal to know, through the fourth event, under what circumstances the measurement should be performed based on the second reference signal set.

[0215] In one possible implementation, the aforementioned third geographic region, associated with the first geographic region and / or the second geographic region, may include one of the following:

[0216] 1. The third geographical region is adjacent to the first geographical region, and the third geographical region is adjacent to the second geographical region, such as... Figure 6 As shown in 6-1.

[0217] 2. The third geographic region overlaps with the first geographic region and / or the second geographic region.

[0218] For example, in Figure 6 In 6-2, the third geographic region belongs to the first geographic region. In this case, the first and second geographic regions can be adjacent, or there can be an interval between the first and second geographic regions.

[0219] For example, in Figure 6 In 6-3, the third geographic region is any region of the first geographic region other than the fourth geographic region. In this case, the first and second geographic regions can be adjacent, or there can be an interval between the first and second geographic regions.

[0220] For example, in Figure 6 In 6-4, the third geographic region is the overlapping area of ​​the first and second geographic regions.

[0221] For example, in Figure 6 In 6-5, the third geographic region includes the overlapping area of ​​the first geographic region and the third geographic region, as well as the overlapping area of ​​the second geographic region and the third geographic region.

[0222] 402. The terminal is located in the first geographical region, and the terminal communicates with the first network device based on the first resource group.

[0223] Accordingly, the first network device communicates with terminals located in the first geographical area based on the first resource group.

[0224] For example, a first resource group is used for a terminal located in a first geographical area to communicate with a first network device. The first resource group includes a first uplink resource and / or a first downlink resource. The terminal communicates uplink with the first network device based on the first uplink resource and / or communicates downlink with the first network device based on the first downlink resource.

[0225] In one possible implementation, the first resource group or the second resource group can also be used for communication between a terminal located in a first geographical area and a second network device. The terminal can also communicate with the second network device based on the first resource group or the second resource group. For example, the first resource group includes second uplink resources and / or second downlink resources, or the second resource group includes second uplink resources and / or second downlink resources, and the terminal performs uplink communication with the second network device based on the second uplink resources and / or downlink communication with the second network device based on the second downlink resources.

[0226] Optionally, to achieve the aforementioned functions, the device includes corresponding hardware structures and / or software modules for performing each function. Those skilled in the art will readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware 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.

[0227] This application embodiment can divide a terminal or network device (such as a first network device or a second network device) into functional modules according to the above method examples. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0228] See Figure 7 , Figure 7 This is a schematic diagram of a communication device provided in an embodiment of this application. The communication device 700 can be applied to the above-described... Figure 4 In the method shown in the embodiment, as Figure 7 As shown, the communication device 700 includes a processing module 701 and a transceiver module 702. The processing module 701 may be one or more processors, and the transceiver module 702 may be a transceiver or a communication interface. This communication device can be used to implement the terminal or network device (such as a first network device or a second network device) involved in any of the above method embodiments, or to implement the functions of network elements involved in any of the above method embodiments. The network element or network function can be a network component in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (e.g., a cloud platform). Optionally, the communication device 700 may also include a storage module 703 for storing the program code and data of the communication device 700. It should be understood that regardless of whether these functional modules are subdivided or combined, the general flow performed by the communication device 700 in implementing any of the above method embodiments is the same. For example, the transceiver module 702 in the above communication device 700 may include a receiving module and / or a sending module; of course, the transceiver module may also be called a communication module. In one implementation, each module can have its own program code (or program instructions). When the program code corresponding to each module is run on the processor, it causes the unit to execute the corresponding process to achieve the corresponding function.

[0229] In one example, when the communication device functions as a terminal or is a chip used in a terminal, i.e., a chip for a terminal, it executes the steps performed by the terminal in the above method embodiments. The transceiver module 702 is used for specific execution. Figure 4 The actions of sending and / or receiving performed by the terminal in the illustrated embodiments may include, for example, other processes that support the terminal in performing the techniques described herein. The processing module 701 may be used to support the communication device 700 in performing the processing actions in the above method embodiments, for example, supporting the terminal in performing other processes that support the techniques described herein.

[0230] For example, the transceiver module 702 is configured to: receive first configuration information, the first configuration information including N resource groups, the N resource groups including a first resource group, the first resource group being used for communication between a terminal located in a first geographical region and a first network device, where N is a positive integer and the terminal is located in the first geographical region. The terminal communicates with the first network device based on the first resource group. The first resource group includes a first uplink resource and / or a first downlink resource. The first uplink resource is used for uplink communication between the terminal located in the first geographical region and the first network device, and the frequency band of the first uplink resource overlaps with the frequency band of the second downlink resource. The second downlink resource is used for downlink communication between the terminal located in the first geographical region and the second network device, and the first uplink resource and the second downlink resource do not overlap. The first downlink resource is used for downlink communication between the terminal located in the first geographical region and the first network device, and the frequency band of the first downlink resource overlaps with the frequency band of the second uplink resource. The second uplink resource is used for uplink communication between the terminal located in the first geographical region and the second network device, and the first downlink resource and the second uplink resource do not overlap.

[0231] In one possible implementation, the first resource group is also used for terminals located in a first geographical area to communicate with a second network device. The first resource group also includes a second uplink resource and / or a second downlink resource. The transceiver module 702 is also used to communicate with the second network device based on the first resource group.

[0232] In one possible implementation, the transceiver module 702 is further configured to: receive second configuration information, the second configuration information including M resource groups, the M resource groups including a second resource group, the second resource group being used for communication between a terminal located in a first geographical area and a second network device, the second resource group including a second uplink resource and / or a second downlink resource, M being a positive integer; and communicate with the second network device based on the second resource group.

[0233] In one possible implementation, the N resource groups further include a third resource group, which is used for terminals located in the second geographical area to communicate with the first network device. When a terminal moves from the first geographical area to the second geographical area, the transceiver module 702 is also used to send first indication information. The first indication information is used to indicate at least one of the following: the identifier of the second geographical area, the identifier of the third resource group, the location information of the terminal, the terminal moving from the first geographical area to the second geographical area, or the terminal switching from the first resource group to the third resource group. The first indication information is used to request communication based on the third resource group.

[0234] In one possible implementation, the third resource group includes a third uplink resource and / or a third downlink resource. The third uplink resource is used for uplink communication between a terminal located in the second geographical area and the first network device, and the third downlink resource is used for downlink communication between a terminal located in the second geographical area and the first network device. The processing module 701 is used to: switch from the first uplink resource to the third uplink resource, and / or switch from the first downlink resource to the third downlink resource.

[0235] In one possible implementation, the transceiver module 702 is further configured to receive second indication information, the second indication information including the identifier of a third uplink resource and / or the identifier of a third downlink resource.

[0236] In one possible implementation, the M resource groups further include a fourth resource group, which is used for terminals located in the second geographical area to communicate with the second network device. When a terminal moves from the first geographical area to the second geographical area, the transceiver module 702 is also used to send third indication information, which indicates at least one of the following: the identifier of the second geographical area, the identifier of the fourth resource group, the location information of the terminal, the terminal moving from the first geographical area to the second geographical area, or the terminal switching from the second resource group to the fourth resource group. The third indication information is used to request communication based on the fourth resource group.

[0237] In one possible implementation, the third resource group is also used for terminals located in the second geographical area to communicate with the second network device. The third resource group includes a fourth uplink resource and / or a fourth downlink resource, or the fourth resource group includes a fourth uplink resource and / or a fourth downlink resource. The fourth uplink resource is used for terminals located in the second geographical area to communicate uplink with the second network device, and the fourth downlink resource is used for terminals located in the second geographical area to communicate downlink with the second network device. The processing module 701 is also used to: switch from the second uplink resource to the fourth uplink resource, and / or switch from the second downlink resource to the fourth downlink resource.

[0238] In one possible implementation, the transceiver module 702 is further configured to receive fourth indication information, which includes the identifier of a fourth uplink resource and / or the identifier of a fourth downlink resource.

[0239] In one possible implementation, the transceiver module 702 is further configured to receive third configuration information, which includes a first reference signal set. Each reference signal in the first reference signal set is associated with at least one resource in a first resource group, or each reference signal in the first reference signal set is associated with at least one resource in a second resource group. The first reference signal set includes a first reference signal. The processing module 701 is further configured to perform a measurement based on the first reference signal to obtain a first measurement result. The first measurement result is used to determine whether the resource associated with the first reference signal in the first or second resource group is available. The first measurement result includes at least one of the following: a signal power value, signal quality value, interference power value, or SINR measured based on the first reference signal, and a measurement performed based on the second reference signal.

[0240] In one possible implementation, the first reference signal set further includes a second reference signal, and the processing module 701 is further configured to perform measurements based on the second reference signal when the resource associated with the first reference signal in the first resource group or the second resource group is unavailable. For example, measurements are performed based on the second reference signal when a first condition is met. The first condition includes at least one of the following: the signal power value measured based on the first reference signal is less than or equal to a first threshold; the signal quality value measured based on the first reference signal is less than or equal to a second threshold; the interference power value measured based on the first reference signal is greater than or equal to a third threshold; or the SINR measured based on the first reference signal is less than or equal to a fourth threshold.

[0241] In one possible implementation, the third configuration information further includes a second set of reference signals. Each reference signal in the first set is associated with at least one resource in the first resource group, and each reference signal in the second set is associated with at least one resource in the third resource group; or, each reference signal in the first set is associated with at least one resource in the second resource group, and each reference signal in the second set is associated with at least one resource in the fourth resource group. The processing module 701 is further configured to perform measurements based on the second set of reference signals when a second condition is met. The second condition includes at least one of the following: the terminal moves to a third geographical area; the signal power values ​​measured based on each reference signal in the first set are all less than or equal to a first threshold; the signal quality values ​​measured based on each reference signal in the first set are all less than or equal to a second threshold; the interference power values ​​measured based on each reference signal in the first set are all greater than or equal to a third threshold; or the SINR measured based on each reference signal in the first set is all less than or equal to a fourth threshold; and the third geographical area is associated with the first geographical area and / or the second geographical area.

[0242] In one example, when the communication device functions as a network device (such as a first network device or a second network device) or as a chip applied in a network device (such as a first network device or a second network device), i.e., a chip used in a network device (such as a first network device or a second network device), it executes the steps performed by the network device (such as a first network device or a second network device) in the above method embodiments. The transceiver module 702 is used for specific execution. Figure 4 The illustrated embodiments represent sending and / or receiving actions performed by a network device (such as a first network device or a second network device), for example, supporting the network device (such as a first network device or a second network device) in performing other processes of the techniques described herein. The processing module 701 can be used to support the communication device 700 in performing the processing actions in the above method embodiments, for example, supporting the network device (such as a first network device or a second network device) in performing other processes of the techniques described herein.

[0243] For example, the transceiver module 702 is used to: send first configuration information, which includes N resource groups, including a first resource group. The first resource group is used for communication between a terminal located in a first geographical region and a first network device, where N is a positive integer and the terminal is located in the first geographical region; and communicate with a terminal located in the first geographical region based on the first resource group. The first resource group includes a first uplink resource and / or a first downlink resource. The first uplink resource is used for uplink communication between the terminal located in the first geographical region and the first network device. The frequency band of the first uplink resource overlaps with the frequency band of the second downlink resource. The second downlink resource is used for downlink communication between the terminal located in the first geographical region and the second network device. The first uplink resource and the second downlink resource do not overlap. Similarly, the first downlink resource is used for downlink communication between the terminal located in the first geographical region and the first network device. The frequency band of the first downlink resource overlaps with the frequency band of the second uplink resource. The second uplink resource is used for uplink communication between the terminal located in the first geographical region and the second network device. The first downlink resource and the second uplink resource do not overlap.

[0244] In one possible implementation, the transceiver module 702 is further configured to send second configuration information, which includes M resource groups, including a second resource group. This second resource group is used for communication between a terminal located in the first geographical area and a second network device. The second resource group includes second uplink resources and / or second downlink resources, where M is a positive integer. Thus, the network device can communicate with the terminal located in the first geographical area based on the second resource group.

[0245] In one possible implementation, the N resource groups further include a third resource group, which is used for terminals located in the second geographical area to communicate with the first network device. The transceiver module 702 is also used to receive first indication information, which indicates at least one of the following: the identifier of the second geographical area, the identifier of the third resource group, the location information of the terminal, the terminal moving from the first geographical area to the second geographical area, or the terminal switching from the first resource group to the third resource group. The first indication information is used to request communication based on the third resource group.

[0246] In one possible implementation, the third resource group includes a third uplink resource and / or a third downlink resource. The third uplink resource is used for uplink communication between a terminal located in the second geographical area and the first network device, and the third downlink resource is used for downlink communication between a terminal located in the second geographical area and the first network device. The transceiver module 702 is also used to send second indication information, which includes the identifier of the third uplink resource and / or the identifier of the third downlink resource.

[0247] In one possible implementation, the M resource groups further include a fourth resource group, which is used for terminals located in the second geographical area to communicate with the second network device. The transceiver module 702 is also used to receive third indication information, which indicates at least one of the following: the identifier of the second geographical area, the identifier of the fourth resource group, the location information of the terminal, the terminal moving from the first geographical area to the second geographical area, or the terminal switching from the second resource group to the fourth resource group. The third indication information is used to request communication based on the fourth resource group.

[0248] In one possible implementation, the third resource group is also used for terminals located in the second geographical area to communicate with the second network device. The third resource group includes a fourth uplink resource and / or a fourth downlink resource, or the fourth resource group includes a fourth uplink resource and / or a fourth downlink resource. The fourth uplink resource is used for terminals located in the second geographical area to conduct uplink communication with the second network device, and the fourth downlink resource is used for terminals located in the second geographical area to conduct downlink communication with the second network device. The transceiver module 702 is also used to send fourth indication information, which includes the identifier of the fourth uplink resource and / or the identifier of the fourth downlink resource.

[0249] In one possible implementation, the transceiver module 702 is further configured to transmit third configuration information, which includes a first set of reference signals. Each reference signal in the first set of reference signals is associated with at least one resource in a first resource group; or, each reference signal in the first set of reference signals is associated with at least one resource in a second resource group. The first set of reference signals includes a first reference signal. In one possible implementation, when the aforementioned device is a chip, such as a modem chip or a SoC chip or SIP chip containing a modem core, or when the aforementioned device is a communication module, the transceiver module 702 can be a communication interface, pins, or circuits. The communication interface can be used to input data to be processed to the processor and can output the processor's processing results. In specific implementations, the communication interface can be a general purpose input / output (GPIO) interface, which can connect to multiple peripheral devices (such as a liquid crystal display (LCD), camera, radio frequency (RF) module, antenna, etc.). The communication interface is connected to the processor via a bus.

[0250] The processing module 701 may be a processing circuit, which may be one or more processors, or all or part of the circuitry within one or more processors used for control and / or processing. The processing circuit or processor may execute computer execution instructions stored in the storage module to cause the chip to perform... Figure 4The method involved in the illustrated embodiment. Further, the processor may include a controller, an arithmetic logic unit (ALU), and registers. Exemplarily, the controller is primarily responsible for instruction decoding and issuing control signals for the operations corresponding to the instructions. The ALU is primarily responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, and can also perform address operations and translations. Registers are primarily responsible for storing register operands and intermediate operation results temporarily stored during instruction execution. In specific implementations, the processor's hardware architecture can be an application-specific integrated circuit (ASIC) architecture, a microprocessor without interlocked piped stages architecture (MIPS) architecture, an advanced reduced instruction set machine (RISC) machine (ARM) architecture, or a network processor (NP) architecture, etc. The processor can be single-core or multi-core. The storage module can be an in-chip storage module, such as registers or caches. Storage modules can also be external to the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.

[0251] Optionally, the functions of the processor and interface can be implemented through hardware design, software design, or a combination of hardware and software; no restrictions are imposed here.

[0252] Figure 8 This is a schematic diagram of another communication device provided in an embodiment of this application. It is understood that the communication device 810 includes necessary means such as modules, units, elements, circuits, or interfaces, appropriately configured together to execute this solution. The communication device 810 can be the aforementioned terminal or network device (such as a first network device or a second network device), or a component (such as a chip) within these devices, used to implement the methods described in the above method embodiments. The communication device 810 includes one or more processors 811. The processor 811 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (e.g., a terminal, a network device (such as a first network device or a second network device), or a chip, execute software programs, and process data from the software programs.

[0253] Optionally, in one design, the processor 811 may include a program 813 (sometimes also referred to as code or instructions), which can be executed on the processor 811 to cause the communication device 810 to perform the methods described in the above embodiments. In yet another possible design, the communication device 810 includes circuitry (…). Figure 8 (Not shown), the circuit is used to implement the functions of the terminal, network device (such as the first network device or the second network device) in the above embodiments. Optionally, the communication device 810 may include one or more memories 812, on which a program 814 (sometimes also referred to as code or instructions) is stored. The program 814 can be run on the memory 812, causing the communication device 810 to perform the methods described in the above method embodiments.

[0254] Optionally, data may also be stored in the processor 811 and / or the memory 812. The processor and memory may be configured separately or integrated together.

[0255] Optionally, if the communication device 810 is a terminal or network device, it may further include a transceiver 815 and / or an antenna 816. The processor 811, sometimes referred to as a processing unit, controls the communication device (e.g., a terminal or network device such as a first network device or a second network device). The transceiver 815, sometimes referred to as a transceiver unit, transceiver, or transceiver circuit, is used to implement the transmission and reception functions of the communication device via the antenna 816. Optionally, the transceiver 815 may include a receiver and / or a transmitter. The receiver may be referred to as a receiving unit, receiver, or receiving circuit. The transmitter may be referred to as a transmitting unit, transmitter, or transmitting circuit.

[0256] Optionally, if the communication device 810 is a chip for a terminal or network device (such as a first network device or a second network device), the transceiver 815 may be a transceiver circuit, such as an input / output interface, or a transceiver interface.

[0257] This application also provides a communication device, which includes at least one processor; wherein the at least one processor is configured to execute... Figure 4 The method described in any of the illustrated embodiments.

[0258] This application also provides a computer-readable storage medium storing computer instructions, which, when executed, cause the computer to perform actions such as... Figure 4 The method described in any of the illustrated embodiments.

[0259] This application also provides a computer program product, which includes: computer program code, which, when executed by a computer, causes the computer to perform actions such as... Figure 4The method described in any of the illustrated embodiments.

[0260] This application embodiment also provides a chip, which includes at least one processor and an interface. The processor is used to read and execute instructions stored in a memory. When the instructions are executed, the chip causes the chip to perform actions such as... Figure 4 The method described in any of the illustrated embodiments.

[0261] Optionally, the processing performed by a single execution entity (terminal or network device (such as the first network device or the second network device)) shown in any of the above embodiments can also be divided into multiple execution entities, which can be logically and / or physically separated. For example, the processing performed by a network device (such as the first network device or the second network device) can be divided into execution by at least one of CU, DU, and RU.

[0262] Furthermore, the various embodiments of this application are merely illustrative examples of executing all the steps included, and should not be considered as specific limitations on this application. For example, the order of steps in various embodiments can be simply changed according to their function and internal logic; or, for example, all steps in various embodiments can be executed, or only a portion of them can be executed, as long as the same function as in the embodiments of this application can be achieved.

[0263] In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to a network device" can be understood as the destination of the information being the network device, which can include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from a network device" can be understood as the source of the information being the network device, which can include direct reception from the network device via the air interface or indirect reception from the network device via the air interface from other units or modules. "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.

[0264] In other words, sending and receiving can occur between devices, such as between network devices and terminals; or they can occur within a device, such as between components, modules, chips, software modules, or hardware modules within a device via a bus, wiring, or interface.

[0265] In the embodiments of this application, "when," "if," "if," and "in the case of" all refer to the device making corresponding processing under certain objective circumstances, and are not limited to a time, nor do they require the device to make a judgment action when it is implemented, nor do they mean that there are other limitations.

[0266] In this application, the words “example,” “exemplarily,” “for example,” or “such as” are used to indicate that something is an example, illustration, or description. Any embodiment or design described as “example,” “exemplarily,” “for example,” or “such as” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words “example,” “exemplarily,” “for example,” or “such as” is intended to present the relevant concepts in a specific manner.

[0267] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, The method is applied to a terminal device, and the method includes: Receive first configuration information, the first configuration information includes N resource groups, the N resource groups include the first resource group, the first resource group is used for terminal devices located in the first geographical area to communicate with the first network device, the N is a positive integer, and the terminal device is located in the first geographical area; Communication is conducted between the first resource group and the first network device; The first resource group includes a first uplink resource and / or a first downlink resource; The first uplink resource is used for uplink communication between a terminal device located in the first geographical area and the first network device. The frequency band to which the first uplink resource belongs overlaps with the frequency band to which the second downlink resource belongs. The second downlink resource is used for downlink communication between a terminal device located in the first geographical area and the second network device. The first uplink resource and the second downlink resource do not overlap. The first downlink resource is used for downlink communication between a terminal device located in the first geographical area and the first network device. The frequency band to which the first downlink resource belongs overlaps with the frequency band to which the second uplink resource belongs. The second uplink resource is used for uplink communication between a terminal device located in the first geographical area and the second network device. The first downlink resource and the second uplink resource do not overlap.

2. The method according to claim 1, characterized in that, The first resource group is also used for communication between a terminal device located in the first geographical area and the second network device. The first resource group further includes the second uplink resource and / or the second downlink resource. The method further includes: The first resource group communicates with the second network device.

3. The method according to claim 1, characterized in that, The method further includes: Receive second configuration information, the second configuration information includes M resource groups, the M resource groups include a second resource group, the second resource group is used for terminal devices located in the first geographical area to communicate with the second network device, the second resource group includes the second uplink resources and / or the second downlink resources, and M is a positive integer; The second resource group communicates with the second network device.

4. The method according to any one of claims 1-3, characterized in that, The N resource groups further include a third resource group, which is used for communication between terminal devices located in the second geographical region and the first network device. The method further includes: When the terminal device moves from the first geographic region to the second geographic region, a first indication message is sent. The first indication message is used to indicate at least one of the following: the identifier of the second geographic region, the identifier of the third resource group, the location information of the terminal device, the terminal device moving from the first geographic region to the second geographic region, or the terminal device switching from the first resource group to the third resource group. The first indication message is used to request communication based on the third resource group.

5. The method according to claim 4, characterized in that, The third resource group includes a third uplink resource and / or a third downlink resource. The third uplink resource is used for uplink communication between a terminal device located in the second geographical region and the first network device. The third downlink resource is used for downlink communication between a terminal device located in the second geographical region and the first network device. The method further includes: Switching from the first uplink resource to the third uplink resource, and / or switching from the first downlink resource to the third downlink resource.

6. The method according to claim 5, characterized in that, The method further includes: Receive second indication information, the second indication information including the identifier of the third uplink resource and / or the identifier of the third downlink resource.

7. The method according to any one of claims 3-6, characterized in that, The M resource groups further include a fourth resource group, which is used for communication between terminal devices located in the second geographical region and the second network device. The method further includes: When the terminal device moves from the first geographic region to the second geographic region, a third indication message is sent, which indicates at least one of the following: the identifier of the second geographic region, the identifier of the fourth resource group, the location information of the terminal device, the terminal device moving from the first geographic region to the second geographic region, or the terminal device switching from the second resource group to the fourth resource group. The third indication message is used to request communication based on the fourth resource group.

8. The method according to any one of claims 4-7, characterized in that, The third resource group is further used for communication between a terminal device located in the second geographical region and the second network device. The third resource group includes a fourth uplink resource and / or a fourth downlink resource, or the fourth resource group includes the fourth uplink resource and / or the fourth downlink resource. The fourth uplink resource is used for uplink communication between the terminal device located in the second geographical region and the second network device, and the fourth downlink resource is used for downlink communication between the terminal device located in the second geographical region and the second network device. The method further includes: Switching from the second uplink resource to the fourth uplink resource, and / or switching from the second downlink resource to the fourth downlink resource.

9. The method according to claim 8, characterized in that, The method further includes: Receive fourth indication information, the fourth indication information including the identifier of the fourth uplink resource and / or the identifier of the fourth downlink resource.

10. The method according to any one of claims 5-9, characterized in that, The frequency band to which the third uplink resource belongs overlaps with the frequency band to which the fourth downlink resource belongs; the third uplink resource and the fourth downlink resource do not overlap. The frequency band to which the third downlink resource belongs overlaps with the frequency band to which the fourth uplink resource belongs; the third downlink resource and the fourth uplink resource do not overlap.

11. The method according to any one of claims 1-10, characterized in that, The method further includes: Receive third configuration information, the third configuration information including a first reference signal set, each reference signal in the first reference signal set is associated with at least one resource in the first resource group, or each reference signal in the first reference signal set is associated with at least one resource in the second resource group, the first reference signal set including a first reference signal; A first measurement result is obtained by measuring based on the first reference signal. The first measurement result is used to determine whether the resource associated with the first reference signal in the first resource group or the second resource group is available.

12. The method according to claim 11, characterized in that, The first set of reference signals further includes a second reference signal, and the method further includes: If the resource associated with the first reference signal in the first resource group or the second resource group is unavailable, the measurement is performed based on the second reference signal.

13. The method according to claim 11 or 12, characterized in that, The first measurement result includes at least one of the following: a signal power value, a signal quality value, an interference power value, or a signal-to-interference-noise ratio (SINR) measured based on the first reference signal, wherein the measurement based on the second reference signal includes: If the first condition is met, the measurement is performed based on the second reference signal; The first condition includes at least one of the following: the signal power value measured based on the first reference signal is less than or equal to a first threshold value; the signal quality value measured based on the first reference signal is less than or equal to a second threshold value; the interference power value measured based on the first reference signal is greater than or equal to a third threshold value; or the SINR measured based on the first reference signal is less than or equal to a fourth threshold value.

14. The method according to claim 11, characterized in that, The third configuration information further includes a second set of reference signals, wherein each reference signal in the first set is associated with at least one resource in the first resource group, and each reference signal in the second set is associated with at least one resource in the third resource group; or, each reference signal in the first set is associated with at least one resource in the second resource group, and each reference signal in the second set is associated with at least one resource in the fourth resource group. The method further includes: Under the condition that the second condition is met, measurements are performed based on the second set of reference signals; The second condition includes at least one of the following: the terminal device moves to a third geographical region; the signal power value measured based on each reference signal in the first reference signal set is less than or equal to a first threshold value; the signal quality value measured based on each reference signal in the first reference signal set is less than or equal to a second threshold value; the interference power value measured based on each reference signal in the first reference signal set is greater than or equal to a third threshold value; or the SINR measured based on each reference signal in the first reference signal set is less than or equal to a fourth threshold value; and the third geographical region is associated with the first geographical region and / or the second geographical region.

15. A communication method, characterized in that, The method is applied to a network device, wherein the network device is a first network device or a second network device, and the method includes: Send first configuration information, the first configuration information includes N resource groups, the N resource groups include the first resource group, the first resource group is used for terminal devices located in the first geographical area to communicate with the first network device, N is a positive integer, and the terminal device is located in the first geographical area; Communication is established between the first resource group and the terminal device located in the first geographical region. The first resource group includes a first uplink resource and / or a first downlink resource; The first uplink resource is used for uplink communication between a terminal device located in the first geographical area and the first network device. The frequency band to which the first uplink resource belongs overlaps with the frequency band to which the second downlink resource belongs. The second downlink resource is used for downlink communication between a terminal device located in the first geographical area and the second network device. The first uplink resource and the second downlink resource do not overlap. The first downlink resource is used for downlink communication between a terminal device located in the first geographical area and the first network device. The frequency band to which the first downlink resource belongs overlaps with the frequency band to which the second uplink resource belongs. The second uplink resource is used for uplink communication between a terminal device located in the first geographical area and the second network device. The first downlink resource and the second uplink resource do not overlap.

16. The method according to claim 15, characterized in that, The first resource group is also used for terminal devices located in the first geographical area to communicate with the second network device, and the first resource group also includes the second uplink resource and / or the second downlink resource.

17. The method according to claim 15, characterized in that, The network device is the second network device, and the method further includes: Send second configuration information, the second configuration information includes M resource groups, the M resource groups include a second resource group, the second resource group is used for terminal devices located in the first geographical area to communicate with the second network device, the second resource group includes the second uplink resources and / or the second downlink resources, and M is a positive integer; The second resource group communicates with the terminal device located in the first geographical area.

18. The method according to any one of claims 15-17, characterized in that, The N resource groups further include a third resource group, which is used for communication between terminal devices located in the second geographical region and the first network device. The method further includes: Receive first indication information, the first indication information being used to indicate at least one of the following: the identifier of the second geographic region, the identifier of the third resource group, the location information of the terminal device, the terminal device moving from the first geographic region to the second geographic region, or the terminal device switching from the first resource group to the third resource group, the first indication information being used to request communication based on the third resource group.

19. The method according to claim 18, characterized in that, The third resource group includes a third uplink resource and / or a third downlink resource. The third uplink resource is used for uplink communication between a terminal device located in the second geographical region and the first network device. The third downlink resource is used for downlink communication between a terminal device located in the second geographical region and the first network device. The method further includes: Send a second indication message, the second indication message including the identifier of the third uplink resource and / or the identifier of the third downlink resource.

20. The method according to any one of claims 17-19, characterized in that, The M resource groups further include a fourth resource group, which is used for communication between terminal devices located in the second geographical region and the second network device. The method further includes: Receive a third indication message, the third indication message being used to indicate at least one of the following: the identifier of the second geographic region, the identifier of the fourth resource group, the location information of the terminal device, the terminal device moving from the first geographic region to the second geographic region, or the terminal device switching from the second resource group to the fourth resource group, the third indication message being used to request communication based on the fourth resource group.

21. The method according to any one of claims 18-20, characterized in that, The third resource group is further used for communication between a terminal device located in the second geographical region and the second network device. The third resource group includes a fourth uplink resource and / or a fourth downlink resource, or the fourth resource group includes the fourth uplink resource and / or the fourth downlink resource. The fourth uplink resource is used for uplink communication between the terminal device located in the second geographical region and the second network device, and the fourth downlink resource is used for downlink communication between the terminal device located in the second geographical region and the second network device. The method further includes: Send a fourth indication message, which includes the identifier of the fourth uplink resource and / or the identifier of the fourth downlink resource.

22. The method according to any one of claims 18-21, characterized in that, The frequency band to which the third uplink resource belongs overlaps with the frequency band to which the fourth downlink resource belongs; the third uplink resource and the fourth downlink resource do not overlap. The frequency band to which the third downlink resource belongs overlaps with the frequency band to which the fourth uplink resource belongs; the third downlink resource and the fourth uplink resource do not overlap.

23. The method according to any one of claims 15-22, characterized in that, The method further includes: Send third configuration information, the third configuration information including a first reference signal set, each reference signal in the first reference signal set being associated with at least one resource in the first resource group, or each reference signal in the first reference signal set being associated with at least one resource in the second resource group, the first reference signal set including a first reference signal.

24. A communication device, characterized in that, Includes units or modules for implementing the method as described in any one of claims 1-23.

25. A communication device, characterized in that, The communication device includes at least one processor; wherein the at least one processor is configured to perform the method of any one of claims 1-23.

26. A computer program product, characterized in that, The computer program product includes: computer program code, which, when executed by a computer, causes the computer to perform the method as described in any one of claims 1-23.

27. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed, cause the computer to perform the method as described in any one of claims 1-23.

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