A resource configuration method and network device

Abstract

The present application discloses a resource configuration method and network device, which relates to the field of communication technology, and can perform targeted transmission resource configuration and indication when the IAB node adopts a non-time division multiplexing resource multiplexing method. The present application reports the resource multiplexing capabilities of the MT and DU of the IAB node to the second node by the first node, and the conditions that the resource multiplexing capabilities supported by the IAB node need to meet, so that the second node can perform targeted transmission resource configuration and indication according to the capabilities of the MT and DU of the IAB node combined with transmission parameter requirements, etc., thereby improving the resource utilization rate of the first node when communicating, and improving communication efficiency.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to a resource configuration method and network device. Background Art

[0002] With the continuous development of mobile communication technology, spectrum resources are becoming increasingly scarce. To improve spectrum utilization, future base station deployments will be denser. Furthermore, dense deployment can prevent coverage holes. In traditional cellular network architectures, base stations are connected to the core network via optical fiber. However, in many scenarios, deploying optical fiber is expensive. To reduce costs, wireless backhaul links can be used to connect wireless relay nodes (RNs) to the core network.

[0003] In general, RN establishes a wireless backhaul link (which may be called a parent BackHaul link) with one or more upper-level nodes. Also, RN establishes a wireless backhaul link (which may be called a child BackHaul link) with one or more lower-level nodes. The upper-level node of RN may be a base station or another RN; the lower-level node of RN may be a terminal or another RN. Considering the high bandwidth of future wireless networks, 5G new radio (NR) considers introducing an integrated access and backhaul (IAB) solution to further reduce deployment costs and improve deployment flexibility, and thereby introduces an integrated access and backhaul RN, namely an IAB node. Figure 1 As shown, the IAB node establishes an upper-level backhaul link with an upper-level node, a lower-level backhaul link with a lower-level node, and an access link with a user equipment (UE).

[0004] An IAB node may include two functional units: a mobile terminal (MT) and a distributed unit (DU). The MT is used for communication between the IAB node and its upper-level node, while the DU is used for communication between the IAB node and its lower-level node or UE. The MT and DU can use the backhaul link resources configured for the IAB node by the access network equipment (such as a base station) of the IAB node to communicate with its upper-level node or lower-level node. Generally, resource multiplexing methods may include time division multiplexing, space division multiplexing, full-duplex, etc. However, conventional technologies do not yet have a non-time division resource multiplexing solution between the MT and DU of an IAB node. Summary of the Invention

[0005] The present application provides a resource configuration method and a network device, which can perform targeted transmission resource configuration and indication when an IAB node adopts a non-time division multiplexing resource multiplexing method.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] In a first aspect, a resource configuration method is provided, the method comprising: a first node sends first information and second information to a second node, the first information being used to indicate resource multiplexing capabilities supported by one or more carriers of a mobile terminal MT of the first node and one or more cells of a distributed unit DU of the first node; the second information being used to indicate conditions that need to be met for resource multiplexing capabilities supported by one or more carriers of the MT; wherein the above-mentioned resource multiplexing capabilities include capability 1, capability 2, capability 3 and capability 4, wherein capability 1 indicates that the MT and the DU can send signals simultaneously, capability 2 indicates that the DU can receive signals while the MT sends signals, capability 3 indicates that the DU can send signals while the MT receives signals, and capability 4 indicates that the MT and the DU can receive signals simultaneously.

[0008] In the technical solution provided in the first aspect above, the first node reports to the second node the resource reuse capabilities of the MT and DU of the IAB node, as well as the conditions that must be met for the resource reuse capabilities supported by the node. This allows the second node to perform targeted transmission resource configuration and instructions based on the MT and DU capabilities of the IAB node, combined with transmission parameter requirements, etc. This improves resource utilization and communication efficiency during communication by the first node.

[0009] In one possible implementation, the resource configuration method provided in this application may further include: a first node receiving first configuration information from a second node for indicating transmission resources of a mobile equipment (MT); wherein the transmission resources of the MT enable the MT of the first node to support one of the aforementioned capabilities 1, 2, 3, or 4, and the transmission resources of the MT enable the MT of the first node to meet the conditions required by the aforementioned capabilities 1, 2, 3, or 4. The second node may perform targeted transmission resource configuration and indication based on the capabilities of the MT and DU of the IAB node, combined with transmission parameter requirements, etc., thereby improving resource utilization and communication efficiency during communication by the first node.

[0010] In one possible implementation, the second information is used to indicate the conditions that must be met for the resource reuse capability supported by one or more carriers of the MT of the first node, specifically including one or more of the following conditions: the MT's downlink receive power must be set within a specific range; the maximum number of demodulation reference signal (DMRS) ports for the MT's downlink scheduling; the maximum number of DMRS ports for the MT's uplink scheduling; the MT's uplink scheduling timing mode must be set to a specific mode; the uplink transmit beam ID supported by the MT; and the downlink receive beam ID supported by the MT. By reporting the resource reuse capability supported by its MT carrier and the requirements for one or more MT transmission parameters such as transmit power, DMRS ports, timing mode, or beams, the first node facilitates the second node's targeted transmission resource configuration and instructions.

[0011] In one possible implementation, the uplink transmission beam ID supported by the MT is represented by a sounding reference signal resource indication SRI. In one possible implementation, the second information is also used to indicate the conditions that need to be met for the resource reuse capability supported by the DU of the first node, specifically including one or more of the following conditions: the uplink receive power of the DU needs to be set in a specific interval; the downlink transmit power of the DU needs to be set in a specific interval; the uplink receive timing mode of the DU is set to a specific mode; the downlink transmit beam ID supported by the DU; the uplink receive beam ID supported by the DU. The first node reports the resource reuse capability supported by its DU carrier for one or more DU transmission parameter requirements such as the transmission power, timing mode or beam, so that the second node can perform targeted transmission resource configuration and instructions on it.

[0012] In one possible implementation, the resource configuration method provided in this application may further include: a first node receiving second configuration information from a second node, the second configuration information including: a DU cell ID indicated by downlink control information (DCI); a location of DU cell resource availability information indicated by the DU cell ID in the DCI; and the DU cell resource availability information indicated by the DU cell ID. By indicating the availability of the DU cell resources to the first node, the second node facilitates the first node to determine the availability of MT carrier resources based on the DCI and the availability of the DU cell resources.

[0013] In one possible implementation, the second configuration information further includes: an MT carrier ID indicated by the DCI. The second node indicates the MT carrier corresponding to the DU cell in the second configuration information, thereby facilitating the first node to perform resource availability analysis based on the MT carrier indicated by the second configuration information.

[0014] In one possible implementation, the resource configuration method provided herein may further include: a first node receiving a DCI from a second node, the DCI indicating the availability status of a soft resource; the availability status of the soft resource including availability status 1 and availability status 2; availability status 1 indicating that the second node will not use the first carrier of the mobile equipment (MT) for backhaul link scheduling, and availability status 2 indicating that the second node will use the first carrier of the MT for backhaul link scheduling; the first carrier being any carrier of the MT. By indicating two different availability statuses through enhanced DCI, resource availability configuration can be more flexible.

[0015] In a possible implementation, the second node is a superior node or a donor node of the first node.

[0016] In a second aspect, a resource configuration method is provided, the method comprising: a second node receives first information and second information from a first node; the first information is used to indicate resource multiplexing capabilities supported by one or more carriers of a mobile terminal MT of the first node and one or more cells of a distributed unit DU of the first node; the second information is used to indicate conditions that need to be met for resource multiplexing capabilities supported by one or more carriers of the MT; wherein the above-mentioned resource multiplexing capabilities include capability 1, capability 2, capability 3 and capability 4, capability 1 indicates that the MT and DU can send signals simultaneously, capability 2 indicates that the DU can receive signals while the MT sends signals, capability 3 indicates that the DU can send signals while the MT receives signals, and capability 4 indicates that the MT and DU can receive signals simultaneously.

[0017] In the technical solution provided in the second aspect, the first node reports to the second node the resource reuse capabilities of the MT and DU of the IAB node, as well as the conditions that must be met for the resource reuse capabilities supported by the node. This allows the second node to perform targeted transmission resource configuration and instructions based on the MT and DU capabilities of the IAB node, combined with transmission parameter requirements, etc. This improves resource utilization and communication efficiency during communication by the first node.

[0018] In one possible implementation, the resource configuration method provided in this application may further include: a second node sending first configuration information to the first node for indicating the transmission resources of the MT; wherein the transmission resources of the MT enable the MT of the first node to support one of the aforementioned capabilities 1, 2, 3, or 4, and the transmission resources of the MT enable the MT of the first node to meet the conditions required by the aforementioned capabilities 1, 2, 3, or 4. The second node may perform targeted transmission resource configuration and indication based on the capabilities of the MT and DU of the IAB node in combination with transmission parameter requirements, etc., thereby improving resource utilization and communication efficiency of the first node during communication.

[0019] In one possible implementation, the second information is used to indicate the conditions that must be met for the resource reuse capability supported by one or more carriers of the MT of the first node, specifically including one or more of the following conditions: the MT's downlink receive power must be set within a specific range; the maximum number of demodulation reference signal (DMRS) ports for the MT's downlink scheduling; the maximum number of DMRS ports for the MT's uplink scheduling; the MT's uplink scheduling timing mode must be set to a specific mode; the uplink transmit beam ID supported by the MT; and the downlink receive beam ID supported by the MT. By reporting the resource reuse capability supported by its MT carrier and the requirements for one or more MT transmission parameters such as transmit power, DMRS ports, timing mode, or beams, the first node facilitates the second node's targeted transmission resource configuration and instructions.

[0020] In a possible implementation, the uplink transmission beam ID supported by the MT is represented by a sounding reference signal resource indication SRI.

[0021] In one possible implementation, the second information is also used to indicate the conditions that need to be met for the resource reuse capability supported by the DU of the first node, specifically including one or more of the following conditions: the uplink receive power of the DU needs to be set in a specific interval; the downlink transmit power of the DU needs to be set in a specific interval; the uplink receive timing mode of the DU is set to a specific mode; the downlink transmit beam ID supported by the DU; the uplink receive beam ID supported by the DU. The first node reports the resource reuse capability supported by its DU carrier in response to one or more DU transmission parameter requirements such as the transmit power, timing mode, or beam, so that the second node can perform targeted transmission resource configuration and instructions on it.

[0022] In one possible implementation, the resource configuration method provided in this application may further include: the second node sending second configuration information to the first node, where the second configuration information includes: a DU cell ID indicated by downlink control information (DCI); a location of DU cell resource availability information indicated by the DU cell ID in the DCI; and the DU cell resource availability information indicated by the DU cell ID. By indicating the availability of the DU cell resources to the first node, the second node facilitates the first node to determine the availability of the MT carrier resources based on the DCI and the availability of the DU cell resources.

[0023] In one possible implementation, the second configuration information further includes: an MT carrier ID indicated by the DCI. The second node indicates the MT carrier corresponding to the DU cell in the second configuration information, thereby facilitating the first node to perform resource availability analysis based on the MT carrier indicated by the second configuration information.

[0024] In one possible implementation, the resource configuration method provided herein may further include: the second node sending a DCI to the first node indicating the availability status of the soft resource; the availability status of the soft resource includes availability status 1 and availability status 2; availability status 1 indicates that the second node will not use the first carrier of the MT for backhaul link scheduling, and availability status 2 indicates that the second node will use the first carrier of the MT for backhaul link scheduling; the first carrier is any carrier of the MT. By indicating two different availability states through the enhanced DCI, resource availability configuration can be more flexible.

[0025] In a possible implementation, the second node is a superior node or a donor node of the first node.

[0026] In a third aspect, a resource configuration method is provided, the method comprising: a first node receiving second configuration information from a second node, the second configuration information comprising: a DU cell ID indicated by downlink control information DCI; a position of DU cell resource availability information indicated by the above DU cell ID in the DCI; and DU cell resource availability information indicated by the above DU cell ID.

[0027] In the technical solution provided by the third aspect, the second node indicates the availability of DU cell resources to the first node, thereby facilitating the first node to determine the availability of MT carrier resources based on DCI and the availability of DU cell resources.

[0028] In one possible implementation, the second configuration information further includes: an MT carrier ID indicated by the DCI. The second node indicates the MT carrier corresponding to the DU cell in the second configuration information, thereby facilitating the first node to perform resource availability analysis based on the MT carrier indicated by the second configuration information.

[0029] In one possible implementation, the resource configuration method provided herein may further include: a first node receiving a DCI from a second node, the DCI indicating the availability status of a soft resource; the availability status of the soft resource including availability status 1 and availability status 2; availability status 1 indicating that the second node will not use the first carrier of the mobile equipment (MT) for backhaul link scheduling, and availability status 2 indicating that the second node will use the first carrier of the MT for backhaul link scheduling; the first carrier being any carrier of the MT. By indicating two different availability statuses through enhanced DCI, resource availability configuration can be more flexible.

[0030] In a possible implementation, the second node is a superior node or a donor node of the first node.

[0031] In a fourth aspect, a resource configuration method is provided, the method comprising: a second node sending second configuration information to a first node, the second configuration information comprising: a DU cell ID indicated by downlink control information DCI; the position of the DU cell resource availability information indicated by the above-mentioned DU cell ID in the DCI; and the DU cell resource availability information indicated by the above-mentioned DU cell ID.

[0032] In the technical solution provided by the fourth aspect, the second node indicates the availability of DU cell resources to the first node, thereby facilitating the first node to determine the availability of MT carrier resources based on DCI and the availability of DU cell resources.

[0033] In one possible implementation, the second configuration information further includes: an MT carrier ID indicated by the DCI. The second node indicates the MT carrier corresponding to the DU cell in the second configuration information, thereby facilitating the first node to perform resource availability analysis based on the MT carrier indicated by the second configuration information.

[0034] In one possible implementation, the resource configuration method provided herein may further include: a second node sending a DCI to the first node indicating the availability status of a soft resource; the availability status of the soft resource includes availability status 1 and availability status 2; availability status 1 indicates that the second node will not use the first carrier of the MT for backhaul link scheduling, and availability status 2 indicates that the second node will use the first carrier of the MT for backhaul link scheduling; the first carrier is any carrier of the MT. By indicating two different availability statuses through enhanced DCI, resource availability configuration can be more flexible.

[0035] In a possible implementation, the second node is a superior node or a donor node of the first node.

[0036] In a fifth aspect, a first node is provided, which includes: a sending unit for sending first information and second information to a second node, the first information being used to indicate the resource multiplexing capability supported by one or more carriers of the mobile terminal MT of the first node and one or more cells of the distributed unit DU of the first node; the second information being used to indicate the conditions that need to be met for the resource multiplexing capability supported by one or more carriers of the MT; wherein the above-mentioned resource multiplexing capability includes capability 1, capability 2, capability 3 and capability 4, wherein capability 1 indicates that the MT and DU can send signals at the same time, capability 2 indicates that the DU can receive signals while the MT sends signals, capability 3 indicates that the DU can send signals while the MT receives signals, and capability 4 indicates that the MT and DU can receive signals at the same time.

[0037] In the technical solution provided in the fifth aspect, the first node reports to the second node the resource reuse capabilities of the MT and DU of the IAB node, as well as the conditions that must be met for the resource reuse capabilities supported by the node. This allows the second node to perform targeted transmission resource configuration and instructions based on the MT and DU capabilities of the IAB node, combined with transmission parameter requirements, etc. This improves resource utilization and communication efficiency during communication by the first node.

[0038] In one possible implementation, the first node provided in the present application further includes: a receiving unit, configured to receive first configuration information from a second node for indicating transmission resources of a mobile equipment (MT); wherein the transmission resources of the MT enable the MT of the first node to support one of the aforementioned capabilities 1, 2, 3, or 4, and the transmission resources of the MT enable the MT of the first node to meet the conditions required by the aforementioned capabilities 1, 2, 3, or 4. The second node can perform targeted transmission resource configuration and indication based on the capabilities of the MT and DU of the IAB node, combined with transmission parameter requirements, etc., thereby improving resource utilization and communication efficiency during communication by the first node.

[0039] In one possible implementation, the second information is used to indicate the conditions that must be met for the resource reuse capability supported by one or more carriers of the MT of the first node, specifically including one or more of the following conditions: the MT's downlink receive power must be set within a specific range; the maximum number of demodulation reference signal (DMRS) ports for the MT's downlink scheduling; the maximum number of DMRS ports for the MT's uplink scheduling; the MT's uplink scheduling timing mode must be set to a specific mode; the uplink transmit beam ID supported by the MT; and the downlink receive beam ID supported by the MT. By reporting the resource reuse capability supported by its MT carrier and the requirements for one or more MT transmission parameters such as transmit power, DMRS ports, timing mode, or beams, the first node facilitates the second node's targeted transmission resource configuration and instructions.

[0040] In a possible implementation, the uplink transmission beam ID supported by the MT is represented by a sounding reference signal resource indication SRI.

[0041] In one possible implementation, the second information is also used to indicate the conditions that need to be met for the resource reuse capability supported by the DU of the first node, specifically including one or more of the following conditions: the uplink receive power of the DU needs to be set in a specific interval; the downlink transmit power of the DU needs to be set in a specific interval; the uplink receive timing mode of the DU is set to a specific mode; the downlink transmit beam ID supported by the DU; the uplink receive beam ID supported by the DU. The first node reports the resource reuse capability supported by its DU carrier in response to one or more DU transmission parameter requirements such as the transmit power, timing mode, or beam, so that the second node can perform targeted transmission resource configuration and instructions on it.

[0042] In one possible implementation, the receiving unit of the first node is further configured to receive second configuration information from the second node, where the second configuration information includes: a DU cell ID indicated by downlink control information (DCI); the location of DU cell resource availability information indicated by the DU cell ID in the DCI; and the DU cell resource availability information indicated by the DU cell ID. By indicating the availability of DU cell resources to the first node, the second node facilitates the first node to determine the availability of MT carrier resources based on the DCI and the availability of DU cell resources. In one possible implementation, the second configuration information further includes: an MT carrier ID indicated by the DCI. By indicating the MT carrier corresponding to the DU cell in the second configuration information, the second node facilitates the first node to perform resource availability analysis based on the MT carrier indicated by the second configuration information.

[0043] In one possible implementation, the receiving unit of the first node is further configured to receive a DCI from the second node, where the DCI indicates the availability status of the soft resource. The availability status of the soft resource includes availability status 1 and availability status 2. Availability status 1 indicates that the second node will not use the first carrier of the mobile equipment (MT) for backhaul link scheduling, and availability status 2 indicates that the second node will use the first carrier of the MT for backhaul link scheduling. The first carrier is any carrier of the MT. By indicating two different availability statuses in the enhanced DCI, resource availability configuration can be more flexible.

[0044] In a possible implementation, the second node is a superior node or a donor node of the first node.

[0045] In the sixth aspect, a first node is provided, which includes: a receiving unit for receiving second configuration information from a second node, the second configuration information including: a DU cell ID indicated by downlink control information DCI; the position of the DU cell resource availability information indicated by the above DU cell ID in the DCI; and the DU cell resource availability information indicated by the above DU cell ID.

[0046] In the technical solution provided in the sixth aspect, the second node indicates the availability of DU cell resources to the first node, thereby facilitating the first node to determine the availability of MT carrier resources based on DCI and the availability of DU cell resources.

[0047] In one possible implementation, the second configuration information further includes: an MT carrier ID indicated by the DCI. The second node indicates the MT carrier corresponding to the DU cell in the second configuration information, thereby facilitating the first node to perform resource availability analysis based on the MT carrier indicated by the second configuration information.

[0048] In one possible implementation, the receiving unit of the first node is further configured to receive a DCI from the second node, where the DCI indicates the availability status of the soft resource. The availability status of the soft resource includes availability status 1 and availability status 2. Availability status 1 indicates that the second node will not use the first carrier of the mobile equipment (MT) for backhaul link scheduling, and availability status 2 indicates that the second node will use the first carrier of the MT for backhaul link scheduling. The first carrier is any carrier of the MT. By indicating two different availability statuses in the enhanced DCI, resource availability configuration can be more flexible.

[0049] In a possible implementation, the second node is a superior node or a donor node of the first node.

[0050] In the seventh aspect, a second node is provided, which includes: a receiving unit for receiving first information and second information from a first node; the first information is used to indicate the resource multiplexing capability supported by one or more carriers of the mobile terminal MT of the first node and one or more cells of the distributed unit DU of the first node; the second information is used to indicate the conditions that need to be met for the resource multiplexing capability supported by one or more carriers of the MT; wherein the above-mentioned resource multiplexing capability includes capability 1, capability 2, capability 3 and capability 4, capability 1 indicates that the MT and DU can send signals at the same time, capability 2 indicates that the DU can receive signals while the MT sends signals, capability 3 indicates that the DU can send signals while the MT receives signals, and capability 4 indicates that the MT and DU can receive signals at the same time.

[0051] In the technical solution provided in the seventh aspect, the first node reports to the second node the resource reuse capabilities of the MT and DU of the IAB node, as well as the conditions that must be met for the resource reuse capabilities supported by the node. This allows the second node to perform targeted transmission resource configuration and instructions based on the MT and DU capabilities of the IAB node, combined with transmission parameter requirements, etc. This improves resource utilization and communication efficiency during communication by the first node.

[0052] In one possible implementation, the second node provided in this application may further include: a sending unit, configured to send first configuration information indicating the transmission resources of the MT to the first node; wherein the transmission resources of the MT enable the MT of the first node to support one of the aforementioned capabilities 1, 2, 3, or 4, and the transmission resources of the MT enable the MT of the first node to meet the conditions required by the aforementioned capabilities 1, 2, 3, or 4. The second node may perform targeted transmission resource configuration and indication based on the capabilities of the MT and DU of the IAB node in combination with transmission parameter requirements, etc., thereby improving resource utilization and communication efficiency of the first node during communication.

[0053] In one possible implementation, the second information is used to indicate the conditions that must be met for the resource reuse capability supported by one or more carriers of the MT of the first node, specifically including one or more of the following conditions: the MT's downlink receive power must be set within a specific range; the maximum number of demodulation reference signal (DMRS) ports for the MT's downlink scheduling; the maximum number of DMRS ports for the MT's uplink scheduling; the MT's uplink scheduling timing mode must be set to a specific mode; the uplink transmit beam ID supported by the MT; and the downlink receive beam ID supported by the MT. By reporting the resource reuse capability supported by its MT carrier and the requirements for one or more MT transmission parameters such as transmit power, DMRS ports, timing mode, or beams, the first node facilitates the second node's targeted transmission resource configuration and instructions.

[0054] In a possible implementation, the uplink transmission beam ID supported by the MT is represented by a sounding reference signal resource indication SRI.

[0055] In one possible implementation, the second information is also used to indicate the conditions that need to be met for the resource reuse capability supported by the DU of the first node, specifically including one or more of the following conditions: the uplink receive power of the DU needs to be set in a specific interval; the downlink transmit power of the DU needs to be set in a specific interval; the uplink receive timing mode of the DU is set to a specific mode; the downlink transmit beam ID supported by the DU; the uplink receive beam ID supported by the DU. The first node reports the resource reuse capability supported by its DU carrier in response to one or more DU transmission parameter requirements such as the transmit power, timing mode, or beam, so that the second node can perform targeted transmission resource configuration and instructions on it.

[0056] In one possible implementation, the sending unit of the second node is further configured to send second configuration information to the first node, where the second configuration information includes: a DU cell ID indicated by downlink control information (DCI); a location of DU cell resource availability information indicated by the DU cell ID in the DCI; and the DU cell resource availability information indicated by the DU cell ID. By indicating the availability of the DU cell resources to the first node, the second node facilitates the first node to determine the availability of MT carrier resources based on the DCI and the availability of the DU cell resources.

[0057] In one possible implementation, the second configuration information further includes: an MT carrier ID indicated by the DCI. The second node indicates the MT carrier corresponding to the DU cell in the second configuration information, thereby facilitating the first node to perform resource availability analysis based on the MT carrier indicated by the second configuration information.

[0058] In one possible implementation, the transmitting unit of the second node is further configured to transmit a DCI indicating the availability status of the soft resource to the first node. The availability status of the soft resource includes availability status 1 and availability status 2. Availability status 1 indicates that the second node will not use the first carrier of the mobile equipment (MT) for backhaul link scheduling, and availability status 2 indicates that the second node will use the first carrier of the MT for backhaul link scheduling. The first carrier can be any carrier of the MT. By indicating two different availability statuses in the enhanced DCI, resource availability configuration can be more flexible.

[0059] In a possible implementation, the second node is a superior node or a donor node of the first node.

[0060] In the eighth aspect, a second node is provided, which includes: a sending unit for sending second configuration information to the first node, and the second configuration information includes: a DU cell ID indicated by the downlink control information DCI; the position of the DU cell resource availability information indicated by the above-mentioned DU cell ID in the DCI; and the DU cell resource availability information indicated by the above-mentioned DU cell ID.

[0061] In the technical solution provided in the eighth aspect, the second node indicates the availability of DU cell resources to the first node, thereby facilitating the first node to determine the availability of MT carrier resources based on DCI and the availability of DU cell resources.

[0062] In one possible implementation, the second configuration information further includes: an MT carrier ID indicated by the DCI. The second node indicates the MT carrier corresponding to the DU cell in the second configuration information, thereby facilitating the first node to perform resource availability analysis based on the MT carrier indicated by the second configuration information.

[0063] In one possible implementation, the sending unit of the second node is further configured to send a DCI to the first node indicating the availability status of the soft resource. The availability status of the soft resource includes availability status 1 and availability status 2. Availability status 1 indicates that the second node will not use the first carrier of the mobile equipment (MT) for backhaul link scheduling, and availability status 2 indicates that the second node will use the first carrier of the MT for backhaul link scheduling. The first carrier is any carrier of the MT. By indicating two different availability statuses in the enhanced DCI, resource availability configuration can be more flexible.

[0064] In a possible implementation, the second node is a superior node or a donor node of the first node.

[0065] In the ninth aspect, a first node is provided, which includes: a memory for storing computer program code, wherein the computer program code includes instructions; a radio frequency circuit for sending and receiving wireless signals; and a processor for executing the above instructions, so that the first node executes the resource configuration method in any possible implementation of the first aspect or the third aspect.

[0066] In the tenth aspect, a second node is provided, which includes: a memory for storing computer program code, the computer program code including instructions; a radio frequency circuit for sending and receiving wireless signals; and a processor for executing the above instructions, so that the first node executes the resource configuration method in any possible implementation of the second aspect or the fourth aspect.

[0067] In an eleventh aspect, a communication system is provided, comprising the first node according to any possible implementation of the fifth, sixth, or ninth aspects, and the second node according to any possible implementation of the seventh, eighth, or tenth aspects. The communication system is configured to implement the resource configuration method according to any possible implementation of the first, second, third, or fourth aspects.

[0068] In the twelfth aspect, a computer-readable storage medium is provided, on which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, a resource configuration method in any possible implementation manner of the first aspect, the second aspect, the third aspect or the fourth aspect is implemented.

[0069] In a thirteenth aspect, a chip system is provided, comprising a processor and a memory, wherein the memory stores instructions; when the instructions are executed by the processor, the resource configuration method according to any possible implementation of the first, second, third, or fourth aspects is implemented. The chip system may be composed of a chip alone, or may include a chip and other discrete components.

[0070] In a fourteenth aspect, a computer program product is provided, which, when running on a computer, enables implementation of a resource configuration method as in any possible implementation of the first aspect, the second aspect, the third aspect or the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 A schematic diagram of the structure of a communication system applicable to embodiments of the present application;

[0072] Figure 2 A schematic diagram of the structure of an integrated access and backhaul IAB system provided for an embodiment of the application;

[0073] Figure 3 A schematic diagram of the structure of an IAB node provided in an embodiment of the present application;

[0074] Figure 4 A schematic diagram of an access link and a backhaul link provided in an embodiment of the present application;

[0075] Figure 5 An example diagram of downlink backhaul link resource allocation in an LTE relay system provided in an embodiment of the present application;

[0076] Figure 6 A schematic diagram of resource attribute configuration within a time slot provided in an embodiment of the present application;

[0077] Figure 7 An example diagram of MT resource and DU resource allocation in an NR relay system provided in an embodiment of the present application;

[0078] Figure 8 An interactive diagram of a resource configuration method provided in an embodiment of the present application;

[0079] Figure 9 A schematic diagram of an example of the MT and DU structure provided in an embodiment of the present application;

[0080] Figure 10 An example diagram of resource indication of an MT carrier provided in an embodiment of the present application;

[0081] Figure 11 An interactive diagram of another resource configuration method provided in an embodiment of the present application;

[0082] Figure 12 A structural block diagram of a network device (such as a first node or a second node) provided in an embodiment of the present application;

[0083] Figure 13 A schematic structural diagram of a network device (such as a first node or a second node) provided in an embodiment of the present application. DETAILED DESCRIPTION

[0084] The technical solution in this application will be described below with reference to the accompanying drawings.

[0085] The communication systems to which the embodiments of the present application can be applied include, but are not limited to, narrowband Internet of Things (NB-IoT) systems, wireless local access networks (WLAN) systems, long term evolution (LTE) systems, fifth generation mobile communications (5G), also known as new radio (NR) systems, or communication systems after 5G, such as 6G systems, device-to-device (D2D) communication systems, and Internet of Vehicles.

[0086] Taking the 5G communication system as an example, considering the high bandwidth of future wireless networks, the 5G new radio (NR) considers introducing an integrated access and backhaul (IAB) solution to further reduce deployment costs and improve deployment flexibility, and thereby introduces an integrated access and backhaul relay. This application refers to the relay node that supports integrated access and backhaul as an IAB node to distinguish it from the relay of long term evolution (LTE). The system containing the IAB node is also called a relay system.

[0087] Please refer to Figure 2 , Figure 2 FIG. 1 shows a schematic diagram of the structure of an integrated access and backhaul IAB system applicable to an embodiment of the present application. Figure 2 As shown, the integrated access and backhaul IAB system may include one or more IAB systems. An IAB system includes at least one base station 200, one or more terminal devices (terminal) 201 served by the base station 200, one or more IAB nodes, and one or more terminal devices 211 served by the IAB node 210. Generally, the base station 200 is called a donor base station (donor next generation node B, DgNB), and the IAB node 210 is connected to the base station 200 via a wireless backhaul link 213. The donor base station is also referred to as a donor node, that is, a donor node, in this application.

[0088] For example, the host node in the embodiment of the present application can be divided into a centralized unit (CU) and at least one distributed unit (DU). The CU, as a logical node in the 5G gNB, can be used to manage or control at least one DU, and can also be referred to as a CU connected to at least one DU. This structure can split the protocol layer of the radio access network device in the communication system, with some protocol layer functions placed in the CU and the remaining protocol layer functions distributed in the DU, with the CU centrally controlling the DU. Taking the radio access network device as a gNB as an example, the protocol layer of the gNB includes the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the media access control sublayer (MAC) layer, and the physical layer. For example, the CU can be used to implement the functions of the RRC layer, SDAP layer, and PDCP layer, and the DU can be used to implement the functions of the RLC layer, MAC layer, and physical layer. The embodiment of the present application does not specifically limit the protocol stack included in the CU and DU. The CU and DU can be defined and connected by the F1AP interface protocol.

[0089] The base station in this application includes but is not limited to: evolved node base (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home node B, HNB), baseband unit (BBU), eLTE (evolved LTE, eLTE) base station, NR base station (next generation node B, gNB), transmission and reception point (TRP), etc. Terminal devices include but are not limited to: user equipment (UE), mobile station, access terminal, user unit, user station, mobile station, remote station, remote terminal, mobile device, terminal, wireless communication device, user agent, station (ST) in wireless local access network (WLAN), cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication function, computing device, other processing equipment connected to wireless modem, vehicle-mounted equipment, wearable device, mobile station in future 5G network and terminal equipment in future evolved public land mobile network (PLMN) network, etc.

[0090] It should be noted that in this application, the IAB node is a specific name for a relay node and does not limit the solutions of the embodiments of this application. The IAB node in this application can be one of the above-mentioned base stations or terminal devices with forwarding functions, or it can be an independent device form. For example, the IAB node in this application can also be called a relay node (RN), a transmission and reception point (transmission and reception point), a relay transmission and reception point (relaying TRP), etc.

[0091] like Figure 2As shown, the integrated access and backhaul system may further include multiple other IAB nodes, such as IAB node 220 and IAB node 230. IAB node 220 is connected to IAB node 210 via wireless backhaul link 223 to access the network, and IAB node 230 is connected to IAB node 210 via wireless backhaul link 233 to access the network. IAB node 220 serves one or more terminal devices 221, and IAB node 230 serves one or more terminal devices 231. Figure 2 In the embodiment, IAB node 210 and IAB node 220 are both connected to the network via a wireless backhaul link.

[0092] In this application, wireless backhaul links are viewed from the perspective of relay nodes. For example, wireless backhaul link 213 is the backhaul link of IAB node 210, and wireless backhaul link 223 is the backhaul link of IAB node 220. Figure 2 As shown, an IAB node, such as IAB node 220, can be connected to another IAB node 210 via a wireless backhaul link, such as wireless backhaul link 223, thereby connecting to the network. In addition, the relay node can be connected to the network through multiple levels of wireless relay nodes. It should be understood that the use of IAB node in this application is only for descriptive purposes and does not mean that the solution of this application is only used in NR scenarios. In this application, IAB node can generally refer to any node or device with relay function. The use of IAB node and relay node in this application should be understood to have the same meaning.

[0093] To facilitate understanding, the concepts and terms that may appear in this application are explained below.

[0094] 1. Superior Node: A node that provides wireless backhaul link resources, such as IAB node 210, is referred to as a superior node of IAB node 220. It should be understood that a superior node can be an IAB node, a host base station (such as a donor node), or a network device, without limitation.

[0095] 2. Lower-level nodes: Nodes that use backhaul link resources to transmit data to the network or receive data from the network are called lower-level nodes. For example, IAB node 220 is called a lower-level node of IAB node 210, and terminal device 231 can be called a lower-level node of IAB node 230. The network is a network above the core network or other access network, such as the Internet, a private network, etc.

[0096] 3. Access Link: An access link is a wireless link used for communication between a node (e.g., IAB node 210) and its subordinate nodes (e.g., terminal device 211). It includes both uplink and downlink transmissions. Uplink transmission on an access link is also referred to as uplink transmission, and downlink transmission is also referred to as downlink transmission. Nodes include, but are not limited to, the aforementioned IAB nodes.

[0097] 4. Backhaul Link: A backhaul link is a wireless link used by a node (such as IAB node 210) to communicate with its parent node (such as base station 210). It includes both uplink and downlink transmission links. Uplink transmission on a backhaul link is also referred to as uplink transmission, and downlink transmission is also referred to as downlink transmission. Nodes include, but are not limited to, the aforementioned IAB nodes.

[0098] In this application, an IAB node can generally be divided into two parts: a mobile terminal (MT) and a distributed unit (DU). The MT can be defined as a component similar to a UE, and the DU can be defined as a component similar to a base station. In IAB, the MT and DU are referred to as functions (or modules) residing on the IAB node. The MT is used for communication between the IAB node and its upper-level node, while the DU is used for communication between the IAB node and its lower-level node.

[0099] In this application, the MT and DU of the IAB node both have complete transceiver units and an interface between them. However, it should be noted that the MT and DU are logical modules. In practice, the two can share some submodules, such as the transceiver antennas, baseband processing units, etc. Figure 3 shown.

[0100] like Figure 1 As shown in FIG, the link between the MT in the IAB node and the upper node is called the parent BackHaul link, the link between the DU in the IAB node and its lower IAB node is called the child BackHaul link, and the link between the DU in the IAB node and the subordinate UE is called the access link. The upper backhaul link includes the upper backhaul uplink (UL) and the upper backhaul downlink (DL). The lower backhaul link includes the lower backhaul UL and the lower backhaul DL. The access link includes the access UL and the access DL, as shown in FIG. Figure 4In this application, for the convenience of description, the link between the IAB node and the upper node is called a backhaul link, and the link between the IAB node and the lower IAB node and / or UE is collectively referred to as an access link.

[0101] Generally, a lower-level node can be regarded as a terminal device of an upper-level node. Figure 2 In the integrated access and backhaul system shown, one IAB node is connected to one upper node. However, in future relay systems, in order to improve the reliability of the wireless backhaul link, one IAB node, such as IAB node 220, may have multiple upper nodes providing services to the same IAB node at the same time. For example, Figure 2 IAB node 230 can also be connected to IAB node 220 via backhaul link 234. That is, IAB node 210 and IAB node 220 are both superior nodes of IAB node 230. It should be noted that in this application, the names of IAB node 210, IAB node 220, and IAB node 230 do not limit their names in the deployment scenario or network. For example, IAB node 210, IAB node 220, or IAB node 230 can be called relaying TRP or RN. The term "IAB node" is used in this application only for convenience of description.

[0102] It should be noted that in Figure 2In the embodiment, wireless links 202, 212, 222, 232, 213, 223, 233, and 234 may be bidirectional links, including uplink and downlink transmission links. Specifically, wireless backhaul links 213, 223, 233, and 234 may be used by an upper-level node to provide services to a lower-level node. For example, upper-level node 200 may provide wireless backhaul services to lower-level node 210. It should be understood that the uplink and downlink of the backhaul link may be separate, i.e., the uplink and downlink are not transmitted through the same node. Downlink transmission refers to the transmission of information or data from an upper-level node, such as node 200, to a lower-level node, such as IAB node 210, while uplink transmission refers to the transmission of information or data from a lower-level node, such as IAB node 210, to an upper-level node, such as node 200. The above-mentioned nodes are not limited to being network nodes or terminal devices. For example, in a Device to Device (D2D) scenario, a terminal device can act as a relay node to serve other terminal devices. In some scenarios, a wireless backhaul link can also be an access link. For example, wireless backhaul link 223 can also be considered an access link for IAB node 210, and wireless backhaul link 213 is also an access link for node 200. It should be understood that the aforementioned upper-level node can be a base station or a relay node, and the lower-level node can be a relay node or a terminal device with relay functionality. For example, in a D2D scenario, the lower-level node can also be a terminal device.

[0103] It is understood that an IAB node can use the allocated backhaul link resources to communicate with an upper-level node or a lower-level node via a wireless backhaul link. More specifically, a MT can use the backhaul link resources allocated by a donor node to communicate with the upper-level node of the IAB node via an upper-level backhaul link. A DU can use the backhaul link resources allocated by a donor node to communicate with the lower-level node of the IAB node via a lower-level backhaul link.

[0104] The following describes conventional backhaul link resource allocation methods using LTE and NR relay systems as examples:

[0105] Taking backhaul link resource allocation in an LTE relay system as an example, in an LTE relay system, a donor node allocates backhaul link resources to a relay node in units of subframes (1ms), with an allocation period of one radio frame (10ms). Specifically, the donor node designates certain subframes as backhaul link subframes through RRC signaling. The number and position of backhaul link subframes can be reconfigured.

[0106] For relay nodes in LTE, when a subframe is configured as a backhaul subframe, the relay node needs to monitor the relay physical downlink control channel (R-PDCCH) and / or receive the physical downlink share channel (PDSCH) in this subframe, so it cannot send on the access link. Figure 5 As shown in FIG. 1 , a specific example of downlink backhaul link resource allocation in an LTE relay system is taken as an example. Figure 5 As shown, subframes 2, 4, and 6 are configured as backhaul links, and subframes 2, 4, and 6 are unavailable on the access links at the corresponding locations. Therefore, LTE relay uses semi-static time division multiplexing (TDM) resource allocation.

[0107] Taking backhaul link resource allocation in NR relay systems as an example, the MT resources of an IAB node can be configured as downlink (D), uplink (U), and flexible (F). These three types are also supported by existing terminal devices and can be indicated using existing signaling. Unlike terminal devices, the MT resources of an IAB node can support more time slot formats.

[0108] The DU resources of an IAB node can be configured as downlink, uplink, and flexible. Furthermore, these three types of DU resources can be configured as hard (H), soft (S), and not available (NA). NA resources for a DU indicate that the DU is always unavailable. Hard resources for a DU indicate that the DU is always available. Soft resources for a DU indicate that whether the DU can use the resource depends on the instructions of the upper node.

[0109] In this application, the resource attribute configuration of DU can be performed on a resource type by resource type basis within each time slot. For example, within a time slot, if the DU resource is configured with multiple resource types (D / U / F), different resource types can have different attribute (H / S / NA) configurations. Figure 6 As shown in the figure, downlink resources, uplink resources, and flexible resources can be configured as hard resources, soft resources, or not available.

[0110] In the relay system of NR, the resource configuration of MT is performed independently of the resource configuration of DU. Specifically, the available resources and unavailable resources of MT can be explicitly configured by the upper node through high-level signaling (such as RRC signaling). The soft resources and hard resources of DU can be explicitly configured by the upper node through high-level signaling (such as RRC signaling) or interface messages (such as F1-AP interface messages or enhanced F1-AP interface messages). Alternatively, the available resources and unavailable resources of MT can also be implicitly derived by the IAB node through the DU resource type, and the soft resources and hard resources of DU can also be implicitly derived by the IAB node through the resource configuration of MT. This application does not limit the available resources and unavailable resources of MT, and how the soft resources and hard resources of DU are obtained. For example, in the NR R16 protocol, the DU resource attributes of the IAB node are explicitly configured by the donor node, and the availability of MT resources is implicitly derived by the IAB node and / or its upper node based on the DU resource attributes.

[0111] As can be seen above, resource allocation on the IAB node DU in NR depends on the instructions of the host node and / or the upper node, and the DU resource instructions are performed through semi-static allocation plus dynamic instructions. This resource allocation method is very different from the resource allocation method in the LTE system.

[0112] by Figure 7 Taking the example of MT resource and DU resource allocation in the NR relay system as an example, the MT of the IAB node is connected to the DU of the upper node, and the DU of the IAB node is connected to the MT of the lower node. After semi-static resource configuration (for example, through RRC signaling and / or F1-AP interface signaling), the IAB node can obtain the resource configuration of its MT resources and DU resources respectively. Figure 7 As shown, three consecutive DU time slots are configured as NA, hard, and soft, respectively. Three consecutive MT time slots are all configured as downlink. It should be understood that the above-mentioned configurations can be obtained through explicit signaling or implicitly. The IAB node and its superior node can infer the available resources of the IAB's MT based on the DU resource configuration.

[0113] For example, combined Figure 7 As can be seen from Table 1 below, for the IAB node, the MT resource corresponding to the DU resource corresponding to the first time slot of the DU hard resource is unavailable.

[0114] Specifically, the possible behaviors of the MT and its corresponding DU of the IAB node are shown in the following two tables. Table 1 shows the resource configuration of the MT and DU under various possible resource type combinations in the time division multiplexing scenario. Table 2 shows the resource configuration of the MT and DU under various possible resource type combinations in the spatial division multiplexing (SDM) scenario.

[0115] Table 1

[0116]

[0117]

[0118] Table 2

[0119]

[0120]

[0121] In Tables 1 and 2 above, the meanings of the various identifiers are as follows: "MT:Tx" indicates that the MT should transmit after being scheduled. "DU:Tx" indicates that the DU may transmit. "MT:Rx" indicates that the MT is capable of receiving (if there is a signal to be received). "DU:Rx" indicates that the DU may schedule uplink transmissions of the lower-level node. "MT:Tx / Rx" indicates that the MT should transmit or receive after being scheduled, but the transmission and reception do not occur at the same time. "DU:Tx / Rx" indicates that the DU may transmit or receive transmissions from the lower-level node, but the transmission and reception do not occur at the same time. "IA" indicates that the DU resources are explicitly or implicitly indicated as available. "INA" indicates that the DU resources are explicitly or implicitly indicated as unavailable. "MT:NA" indicates that the MT does not transmit and does not necessarily have the ability to receive. "DU:NA" indicates that the DU does not transmit and does not receive transmissions from the lower-level node.

[0122] To dynamically coordinate resources between the access link and backhaul link, NR IAB uses two-level resource indication. Specifically, two-level resource indication means that the upper node explicitly or implicitly configures soft and hard resources for the DU of the IAB node. The availability of soft resources depends on the dynamic signaling indication from the upper node.

[0123] In some embodiments, the upper node may indicate the availability of DU soft resources for the IAB via DCI (e.g., DCI format 2_5). Dynamic indication of soft resources may also be performed per resource type within a timeslot, as shown in Table 3. For example, a value of 3 indicates that all uplink and downlink soft symbols in the timeslot are configured as available.

[0124] Optionally, the upper node may configure the availability of soft resources in multiple time slots for the IAB node in one signaling.

[0125] Table 3

[0126]

[0127]

[0128] It should be noted that the embodiments of the present application only introduce resource allocation using time slots as an example, but this does not constitute a limitation on the embodiments of the present application. In fact, time slots can be replaced by other time domain resources, such as frames, subframes, micro-time slots, symbols, etc.

[0129] An embodiment of the present application provides a resource configuration method, in which an upper-level node can configure MT resources and / or DU resources for a relay node based on the actual capabilities of the relay node (such as an IAB node) (such as the resource multiplexing capabilities actually supported by the MT carrier and DU cell of the relay node) and parameter requirements, so that the MT and DU of the relay node can communicate with the upper-level node or the lower-level node in a resource multiplexing manner that is consistent with their capabilities.

[0130] In an embodiment of the present application, resource multiplexing methods may include but are not limited to TDM, SDM, frequency division multiplexing (FDM) and full duplex (FD). When the resource multiplexing capabilities actually supported by the MT carrier and DU cell of the relay node are different, the resource configuration of the MT resources and the resource configuration of the DU resources may have different corresponding relationships. For example, if the MT and DU support TDM, the MT and DU of the IAB node cannot transmit simultaneously; if the MT and DU support SDM or FDM, the DU can receive signals while the MT sends signals, or the DU can send signals while the MT receives signals; if the MT and DU support FD, the MT and DU can transmit simultaneously, and are not limited to simultaneous reception or simultaneous transmission.

[0131] TDM refers to the MT and DU receiving or transmitting signals in different time domain resources. TDM applied to the MT and DU of the relay node in the embodiments of this application can be specifically manifested as follows: for the DU's hard resources, the MT's resources in the corresponding time slot are unavailable resources, meaning the MT will not communicate with the upper-level node in that time slot; or, for the MT's unavailable resources, the DU's resources in the corresponding time slot are hard resources. This ensures that the MT and DU transmissions do not overlap on the time axis.

[0132] SDM means that the MT and DU can transmit or receive simultaneously. The application of SDM to the MT and DU of the relay node in the embodiments of the present application can be specifically manifested as follows: when the DU is performing downlink transmission, the MT may perform uplink transmission on the corresponding resources; or, when the DU is performing uplink reception, the MT may perform downlink reception on the corresponding resources.

[0133] FD means that the MT and DU of the IAB node can transmit in the same direction. The application of FD to the MT and DU of the relay node in the embodiments of the present application can be specifically manifested as follows: when the DU is transmitting downlink, the MT may be receiving downlink on the corresponding resources; or when the DU is receiving uplink, the MT may be transmitting uplink on the corresponding resources.

[0134] Both SDM and FD are non-time division multiplexing. Furthermore, non-time division multiplexing can be categorized as dynamic non-time division multiplexing and semi-static (or fixed) non-time division multiplexing. The difference between dynamic non-time division multiplexing and semi-static (or fixed) non-time division multiplexing is that dynamic non-time division multiplexing only applies to DU soft resources. Semi-static (or fixed) non-time division multiplexing can also apply to DU hard resources. For example, MT and DU are transmitted simultaneously using SDM. Assume that a timeslot in the DU cell is configured as a downlink resource, while the MT carrier in the corresponding timeslot is configured as an uplink resource. With dynamic non-time division multiplexing, if the DU resource in that timeslot is a hard resource, the second node will not schedule the MT's uplink resources in that timeslot. However, if the DU resource in that timeslot is a soft resource, the first node can determine the appropriate DU downlink scheduling based on the MT's uplink scheduling, thereby enabling simultaneous transmission of the MT and DU. In contrast, with semi-static (or fixed) non-time division multiplexing, the first node assumes that the second node may schedule the MT in that timeslot, meaning that the DU resource attributes do not affect the availability of MT resources. In this case, even if the DU resource of the time slot is a hard resource, the second node may schedule the uplink resource of the MT in the time slot.

[0135] The following is a detailed description of the resource configuration method provided in the embodiment of the present application with reference to the accompanying drawings:

[0136] like Figure 8 As shown, the resource configuration method provided in the embodiment of the present application may include the following steps S801 and S802:

[0137] S801. A first node sends first information and second information to a second node. The first information indicates resource reuse capabilities supported by one or more carriers (CCs) of a mobile operator (MT) of the first node and one or more cells of a user interface (DU) of the first node. The second information indicates conditions that must be met for the resource reuse capabilities supported by the one or more carriers of the MT.

[0138] Correspondingly, the second node receives the first information and the second information sent by the second node.

[0139] In the embodiment of the present application, the first node may be a relay node. Figure 1 The IAB node shown in . The first node may have Figure 3 The structure shown in FIG. 1 is that the first node can be divided into two parts: MT and DU. The second node is the superior node of the first node, the donor node or the parent node.

[0140] The MT and DU of the first node may have (or include or exist or correspond to or cover) multiple subunits. For example, the DU of the first node may have multiple panels or sectors 1, 2 and 3 facing in different directions, and different panels correspond to different cells, such as Figure 1 Panels / sectors 1, 2 and 3 are shown. Figure 9 As shown in (a) in FIG, the DU of the IAB node includes two panels / sectors 1 and 2 with different orientations. Alternatively, the MT of the first node may adopt carrier aggregation technology, wherein different carriers (CCs) correspond to different cells. Alternatively, the MT of the first node may include different partial bandwidths (Bandwidthpart, BWP), etc. Alternatively, the MT of the first node may be connected to different upper-level nodes, and the connections with different upper-level nodes may adopt different carrier groups. Figure 9 As shown in (b), antenna panel 1 includes MT carrier 1, MT carrier 2, DU cell 1 and DU cell 2; antenna panel 2 includes DU cell 3 and DU cell 4. It should be understood that in the protocol, the MT carrier can be called a serving cell.

[0141] In an embodiment of the present application, the resource multiplexing capability supported by one or more carriers of the MT of the first node and one or more cells of the DU of the first node can be understood as the resource multiplexing when the MT and DU of the first node transmit signals on the corresponding resources of each antenna panel / each carrier / each cell, etc.

[0142] In some embodiments, the resource multiplexing capability supported by the MT and DU of the first node can also be understood as the resource multiplexing when the combination of the MT and DU of the first node transmits signals on resources corresponding to each antenna panel / each carrier / each cell, etc.

[0143] The resource reuse capabilities supported by one or more MT carriers / serving cells of the first node and one or more cells of the DU may include at least the following capability 1, capability 2, capability 3, capability 4, and capability 5:

[0144] Capability 1: No TDM for MT-TX / DU-TX. This capability indicates that the MT and DU can transmit signals simultaneously. Capability 1 is also known as SDM transmission.

[0145] Capability 2: No TDM for MT-TX / DU-RX. This capability indicates that the MT can transmit signals while the DU can receive signals. Capability 2 is also known as uplink full-duplex.

[0146] Capability 3: No TDM for MT-RX / DU-TX. This capability indicates that the MT can receive signals while the DU can transmit signals. Capability 3 is also known as downlink full-duplex.

[0147] Capability 4: No TDM for MT-RX / DU-RX. This capability indicates that both the MT and DU can receive signals simultaneously. Capability 4 is also known as SDM reception.

[0148] Capability 5: TDM. Capability 5 indicates that the MT and DU cannot transmit simultaneously.

[0149] It should be noted that different conditions need to be met for different resource multiplexing capabilities supported by the MT carrier and DU cell of the first node. When the MT carrier or DU cell of the first node supports a certain resource multiplexing capability, further, only when the resources configured by the first node meet the corresponding conditions, can the first node use the MT resources and / or DU resources allocated to the first node in full accordance with the corresponding multiplexing rules. Take the example of MT and DU sending or receiving signals at the same time. When a carrier of MT and a cell of DU have the non-time division multiplexing capability of No TDM MT-RX / DU-RX or No TDM MT-TX / DU-TX, it does not necessarily mean that the combination of this MT carrier and DU cell can perform SDM reception or transmission at any time. When the MT carrier is occupied by the backhaul link for transmission, the DU cell needs to be under certain conditions to perform access link transmission.

[0150] It should be understood that any MT carrier, DU cell, or combination of the MT carrier and the DU cell of the first node may have multiple resource multiplexing capabilities, that is, in the first information sent by the first node to the second node, the same DU cell, the same MT carrier, or the combination of the same MT carrier and the DU cell may support multiple resource multiplexing capabilities.

[0151] In some embodiments, the second information may include one or more of the following conditional MT transmission parameters: condition (a) to condition (f):

[0152] Condition (a): The downlink receiving power of the MT needs to be set within a specific range.

[0153] For example, if the MT needs to use SDM technology to receive signals, the MT's downlink signal power must be within a certain range to avoid a large difference in spatial division receive power that affects performance. In this case, the MT of the first node has an expected downlink receive power range. When the power received by the MT of the first node is within the expected range, the first node can use SDM technology to simultaneously receive signals from the MT and the DU. However, when the MT's receive power exceeds the expected range, the signal power difference between the MT and the DU may be large, resulting in the first node being unable to successfully receive one or more of the signals.

[0154] In an embodiment of the present application, when the first node reports its expected downlink receive power range, one method is for the first node to report the difference between its expected downlink receive power and a reference signal power. The reference signal may include but is not limited to a synchronization signal (SS) / physical broadcast channel (PBCH) block (or referred to as a synchronization signal block SSB) or a channel state information reference signal (CSI-RS). After the second node receives the above-mentioned power difference information, the second node can achieve the downlink receive power required by the MT by adjusting the downlink power transmission power and other methods, so that the first node can use SDM technology to simultaneously receive signals from the MT and DU. In the protocol, the receive power can be expressed as energy per resource element (EPRE) of a channel such as PDSCH or a reference signal such as a demodulation reference signal (DMRS).

[0155] Condition (b): Maximum number of DMRS ports for downlink scheduling of MT.

[0156] For example, if the MT needs to use the SDM technology to receive signals, the PDSCH received by the MT may only occupy part of the DMRS ports to achieve DMRS orthogonalization of the MT and DU received signals. Therefore, in order for the MT to use the SDM technology to receive signals, the first node can report to the second node the maximum number of downlink DMRS ports that the MT expects to be scheduled or configured, or the number of downlink DMRS ports that the DU needs to reserve. Optionally, the first node can report the maximum number of downlink DMRS code groups (CDM groups) that the MT expects to be scheduled or configured, or the number of downlink DMRS code groups (CDM groups) that the DU needs to reserve.

[0157] Condition (c): Maximum number of DMRS ports for uplink scheduling of MT.

[0158] For example, if the MT needs to use the SDM technology to send signals, the physical uplink shared channel (PUSCH) sent by the MT may only occupy part of the DMRS ports to achieve DMRS orthogonalization of the signals sent by the MT and the DU. Therefore, in order for the MT to use the SDM technology to send signals, the first node can report to the second node the maximum number of uplink DMRS ports that the MT expects to be scheduled or configured, or the number of uplink DMRS ports that the DU needs to reserve. Optionally, the first node can report to the second node the maximum number of uplink DMRS code groups (CDM groups) that the MT expects to be scheduled or configured, or the number of uplink DMRS code groups (CDM groups) that the DU needs to reserve.

[0159] Condition (d): The timing mode of the MT's uplink scheduling is set to a specific mode.

[0160] For example, the MT needs to adopt a specific uplink timing mode to support SDM or FD. Conventionally, the MT can support multiple timing modes, including traditional uplink timing based on timing advance (TA), MT uplink timing mode aligned with DU downlink timing, uplink timing based on TA and additional offset, etc. To perform SDM or FD, the first node MT may need to adopt a specific timing mode. Therefore, the first node can report the required timing mode to the second node, so that the second node can configure the timing mode for it.

[0161] Condition (e): Uplink transmit beam ID supported by the MT.

[0162] For example, if the MT needs to use the SDM technology to send a signal, the uplink beam used by the MT should be selected within a certain range to avoid excessive interference. Therefore, the first node can report to the second node the uplink transmission beam ID that can perform non-time division transmission. The beam ID can be represented by the following parameters, such as the sounding reference signal resource indicator (SRI) or the identifier of the spatial relationship information (spatialRelationInfo). SRI is used to indicate the resource number of an SRS, indicating that the MT needs to use the same beam (or spatial filter) as this SRS for uplink transmission. The spatial relationship information contains one or more uplink or downlink reference signal identifiers. When the uplink signal transmission of the MT or UE is configured with spatial relationship information, the MT or UE uses the configuration to determine the uplink transmission beam (or spatial filter). For example, when the spatial relationship information contains a downlink reference signal, the UE or MT uses the spatial filter used to receive this downlink reference signal for uplink transmission; when the spatial relationship information contains an uplink reference signal, the UE or MT uses the spatial filter used to send this uplink reference signal for uplink transmission.

[0163] Condition (f), downlink receive beam identifier or transmission configuration indicator state (TCI-state) identifier supported by the MT.

[0164] For example, if the MT needs to use the SDM technology to receive signals, the downlink beam received by the MT should be selected within a certain range to avoid excessive interference. Therefore, the first node can report the downlink receiving beam ID or TCI-state identification information that can perform non-time division transmission to the second node. The receiving beam ID or TCI-state information may include a quasi co-located (QCL) identifier, which is generally a reference signal identifier. The signals corresponding to the antenna ports with a QCL relationship may have the same or similar channel large-scale characteristic parameters (or parameters). Alternatively, the channel large-scale characteristic parameters (or parameters) of one antenna port can be used to determine the channel large-scale characteristic parameters (or parameters) of another antenna port that has a QCL relationship with the antenna port. Alternatively, the two antenna ports have the same or similar channel large-scale characteristic parameters (or parameters). Alternatively, the difference in the channel large-scale characteristic parameters (or parameters) between the two antenna ports is less than a certain threshold. The large-scale characteristic parameters of the channel include one or more of the following parameters: delay spread, Doppler spread, Doppler frequency shift, average gain, average delay or spatial reception parameters.

[0165] In some embodiments, the second information may further include the following MT transmission parameter conditions (g):

[0166] Condition (g), additional channel state information (CSI) reporting or additional sounding reference signal (SRS) measurement.

[0167] Typically, during timeslots in which the MT performs SDM reception or downlink FD, the MT needs to report additional CSI for the second node to obtain downlink transmission channel state information. This includes, for example, downlink channel quality indication, codebook indication, or rank indication information. Alternatively, during timeslots in which the MT performs SDM transmission or uplink FD, the MT needs to transmit a dedicated SRS for the second node to perform channel estimation. This includes, for example, uplink channel frequency domain information and / or interference information.

[0168] That is to say, only when the MT transmission parameter condition satisfies a certain value or value range, a certain resource multiplexing capability between the MT and the DU of the first node can be truly used.

[0169] In other embodiments, the second information may also be used to indicate the conditions that the resource reuse capability supported by the DU needs to meet. The second information may also include one or more of the following DU transmission parameter conditions (A) to (E):

[0170] Condition (A): The uplink receive power of the DU needs to be set within a specific range.

[0171] Condition (B): The downlink transmission power of the DU needs to be set within a specific range.

[0172] Condition (C): The uplink reception timing mode of the DU is set to a specific mode.

[0173] Condition (D), downlink transmit beam ID supported by DU.

[0174] Condition (E): Uplink receive beam ID supported by the DU.

[0175] In other words, the resource multiplexing capability of the MT and DU of the first node can only be truly utilized if the DU transmission parameter conditions meet certain values ​​or value ranges. For the descriptions of conditions (A) / condition (B), condition (C), condition (D), and condition (E), please refer to the descriptions of conditions (a), (d), (e), and (f) above, respectively, and are not repeated here.

[0176] It should be noted that when the MT transmission parameter conditions reported by the first node to the second node include multiple conditions from (a) to (f) above, the MT transmission parameter conditions may include a combination of multiple conditions. For example, the MT transmission parameter conditions may include {condition (a), condition (b)}, indicating that the first node can achieve a certain resource reuse capability when both conditions (a) and (b) are satisfied. Alternatively, the MT transmission parameter conditions may include multiple groups of conditions. For example, the MT transmission parameter conditions may include [{condition (a), condition (b)}, condition (c)], indicating that the first node can achieve a certain resource reuse capability when both conditions (a) and (b) are satisfied, or when condition (c) is satisfied. When the first node reports multiple DU transmission parameter conditions to the second node, the same combined reporting method may also be used.

[0177] In some embodiments, the first node may send the first information to the second node via a first signaling, and send the second information to the second node via a second signaling. Exemplarily, the first signaling may include the following information:

[0178] {

[0179] MT servingCellId:#n

[0180] DU cell id:#m

[0181] MutilpexingCapablity: One or more of capabilities 1 to 5 (such as No TDM for MT-TX / DU-TX)

[0182] }.

[0183] The second signaling may include the following information:

[0184] {

[0185] MT servingCellId:#n

[0186] DU cell id:#m

[0187] MutilpexingCapablity: One or more of capabilities 1 to 5 (such as No TDM for MT-TX / DU-TX)

[0188] Condition combination 1:

[0189] {

[0190] One or more of the above conditions ag

[0191] }

[0192] Condition combination 2:

[0193] {

[0194] One or more of the above conditions ag

[0195] }

[0196] ….

[0197] }.

[0198] In some other embodiments, the first node may simultaneously send the first information and the second information to the second node via a first signaling. For example, the first signaling may include the following information:

[0199] {

[0200] MT servingCellId:#n

[0201] DU cell id:#m

[0202] MutilpexingCapablity: One or more of capabilities 1 to 5 (such as No TDM for MT-TX / DU-TX)

[0203] Condition combination 1:

[0204] {

[0205] One or more of the above conditions ag

[0206] }

[0207] Condition combination 2:

[0208] {

[0209] One or more of the above conditions ag

[0210] }

[0211] ….

[0212] }.

[0213] In some embodiments, the first node may send a first signaling to the donor node via the F1-AP interface, and the donor node may forward the first signaling to the first node's superior node, i.e., the second node. The second signaling may be reported directly from the first node to the second node, for example, via interface signaling such as F1-AP, or air interface signaling such as RRC or MAC CE.

[0214] S802: The second node sends first configuration information to the first node. The first configuration information is used to indicate the transmission resources of the MT.

[0215] Correspondingly, the first node receives the first configuration information from the second node.

[0216] Among them, the transmission resources of MT can enable the first node to support one of the above-mentioned capabilities 1, capability 2, capability 3 or capability 4, and the transmission resources of MT can enable the first node to meet the conditions required by the above-mentioned capabilities 1, capability 2, capability 3 or capability 4.

[0217] In some embodiments, when the second information indicates the conditions that need to be met for the resource reuse capability supported by the DU, the first configuration information may also be used to indicate the transmission resources of the DU. The transmission resources of the DU enable the first node to support one of the aforementioned capabilities 1, 2, 3, or 4, and the transmission resources of the DU enable the first node to meet the conditions required for the aforementioned capabilities 1, 2, 3, or 4.

[0218] In an embodiment of the present application, the second node may send the first configuration information to the first node through semi-static signaling (such as RRC signaling or MAC CE) or an interface message (such as F1-AP or an F1-AP interface message enhanced by an interface message). The first node may obtain the transmission resources of the MT of the first node through the first configuration information.

[0219] In some embodiments, the first node may further send third information to the second node, where the third information is used to indicate whether the resource reuse capability supported by at least one of the one or more carriers of the MT of the first node and the one or more cells of the DU of the first node is a restricted resource reuse capability.

[0220] In some embodiments, when the first node sends the first information and the second information to the second node through the first signaling, the third information may be carried in the first signaling together with the first information and the second information and sent to the second node.

[0221] In other embodiments, when the first node sends first information to the second node through the first signaling and sends second information to the second node through the second signaling, the third information can be carried in the first signaling together with the first information, or can be carried in the second signaling together with the second information and sent to the second node.

[0222] Taking the example where a first node sends first information to a second node through a first signaling, sends second information to the second node through a second signaling, and the third information is carried in the first signaling, the first signaling may include the following information:

[0223] {

[0224] MT servingCellId:#n

[0225] DU cell id:#m

[0226] MutilpexingCapability:No TDM for MT-TX / DU-TX

[0227] RestrictedCapability:{Yes / No}

[0228] }.

[0229] Among them, RestricedCapability can be Yes or No. If RestricedCapability is Yes, it means that the resource multiplexing capability of "No TDM for MT-TX / DU-TX" is a restricted resource multiplexing capability, that is, it can only be used when the transmission parameters meet the corresponding conditions. In this case, the second node can consider the corresponding conditions and configure the resource multiplexing method and the transmission resources that match the resource multiplexing method for the first node. If RestricedCapability is No, it means that "No TDM for MT-TX / DU-TX" is an unrestricted resource multiplexing capability and there are no special requirements for transmission parameters. In this case, the second node can directly allocate the resource multiplexing method and the transmission resources that match the resource multiplexing method to the first node.

[0230] The second node refers to the first information and the second information, and configures the resource multiplexing mode and transmission resources for the first node as follows:

[0231] When the first information indicates that a certain MT (such as MT1) of the first node supports FD (here, if MT1 supports full-duplex multiplexing, it can be assumed that MT1 also supports all other resource multiplexing types), the second node can configure TDM, dynamic SDM / FDM, semi-static SDM / FDM or FD for MT1, and configure transmission resources for MT1 that match the resource multiplexing method.

[0232] When the first information indicates that MT1 supports semi-static SDM / FDM, the second node may configure one or more of TDM, dynamic SDM / FDM or semi-static SDM / FDM for MT1, and configure transmission resources matching the resource multiplexing mode for MT1.

[0233] When the first information indicates that MT1 supports dynamic SDM / FDM, the second node may configure one or more of TDM or dynamic SDM / FDM for MT1, and configure transmission resources matching the resource multiplexing mode for MT1.

[0234] When the first information indicates that MT1 supports TDM, the second node may configure TDM for MT1, and configure transmission resources matching the resource multiplexing mode for MT1.

[0235] Furthermore, as described above, non-time division multiplexing capabilities, such as SDM / FDM / FD, can be divided into dynamic non-time division multiplexing capabilities and semi-static (fixed) non-time division multiplexing capabilities. Therefore, in some embodiments, when the first node sends the resource multiplexing capabilities supported by the MT and DU of the first node to the second node, it can also report to the second node whether each resource multiplexing capability is a dynamic multiplexing capability or a semi-static (fixed) multiplexing capability.

[0236] In one possible implementation, the third information may also be used to indicate whether each resource reuse capability is a dynamic reuse capability or a semi-static (fixed) reuse capability. Specifically, if the third information indicates that a resource reuse capability is a restricted resource reuse capability, the resource reuse capability may be considered to be a dynamic reuse capability.

[0237] In general, the first node can meet the transmission parameter requirements of the DU by adjusting parameters. For example, when MT resources are scheduled, the DU can adjust parameters such as uplink receive power, downlink transmit power, uplink receive timing mode, downlink transmit beam or uplink receive beam by itself. In order for the DU to perform the above adjustments, the first node should know in advance whether the MT resources are occupied. Therefore, the above requirements for DU transmission parameter conditions can also be converted into requirements for MT resource configuration. Based on this, in some embodiments, the second information may also include the following DU transmission parameter conditions (h):

[0238] Condition (h), MT transmission resource (advance) indication.

[0239] Specifically, the MT transmission resource (advance) indication is used to indicate in advance the time-frequency resources occupied by the MT transmission. In a possible implementation, the first node can infer the resource occupancy of the MT through the DCI of its DU from the second node.

[0240] In the protocol, the MT transmission resource (advance) indication can be implemented through the dynamic indication of DU resources, so condition (h) can also be the dynamic resource indication of DU.

[0241] In the embodiment of the present application, for dynamic non-time division multiplexing capabilities (such as dynamic SDM / FDM / FD, etc.), the second node can indicate the availability of MT resources and / or DU resources of the first node through dynamic signaling (such as DCI). For example, the second node can indicate the availability of MT resources on a MT carrier-by-MT basis through DCI, such as Figure 10The second node may indicate the availability of the DU soft resource according to the indication method shown in Table 3 above.

[0242] Alternatively, the second node may also indicate the availability of DU soft resources per DU cell through dynamic signaling (such as DCI), so that the first node can infer the availability of resources of one or more MT carriers based on the dynamic signaling (such as DCI). Figure 11 As shown, in some embodiments, the resource configuration method provided in the embodiments of the present application may further include the following steps S1101 and S1102:

[0243] S1101: A first node receives second configuration information from a second node. The second configuration information includes: a DU cell ID indicated by downlink control information (DCI), a location of DU cell resource availability information in the DCI, and the DU cell resource availability information.

[0244] Exemplarily, the second configuration information may include:

[0245] Availability Indication DCI configuration:

[0246] {

[0247] iabDuCellId-AI; / indicates the DU cell ID indicated by this field /

[0248] positionInDCI-AI; / the position of this field in DCI /

[0249] availabilityCombinations; / The resource availability information configured for the cell contains multiple values, each of which can be composed of multiple values ​​in Table 3 or Table 4.

[0250] …

[0251] }.

[0252] In this embodiment of the present application, the first node can infer the ID of the corresponding MT carrier based on the DU cell ID configured in the second configuration information. For example, the MT carrier can be an MT cell that only has TDM multiplexing capability with the DU cell. Alternatively, the first node can also infer the ID of the corresponding MT carrier through other means. For example, based on a mapping relationship pre-set locally on the first node. Alternatively, the MT carrier is a carrier with the same ID as the DU cell.

[0253] Alternatively, in order to further indicate the MT carrier corresponding to the DU cell, in some embodiments, the second configuration information may further include: an MT carrier ID indicated by the DCI.

[0254] Exemplarily, the second configuration information may include:

[0255] Availability Indication DCI configuration:

[0256] {

[0257] iabDuCellId-AI; / indicates the DU cell ID indicated by this field /

[0258] ServingCellId; / indicates MT carrier ID (or MT serving cell ID) /

[0259] positionInDCI-AI; / the position of this field in DCI /

[0260] availabilityCombinations; / The resource availability information configured for this cell /

[0261] …

[0262] }.

[0263] S1102: The first node receives a DCI from the second node. The DCI is used to indicate the availability status of the soft resource, where the availability status of the soft resource includes availability status 1 and availability status 2.

[0264] In this embodiment, different from Table 3, the DCI may specifically indicate two different available states for the soft resource: available state 1 and available state 2.

[0265] Among them, the available state 1 indicates that the DU cell indicated by the DU cell ID does not need to consider the impact on the MT carrier (such as the first carrier) when determining the availability of the soft resource. That is, for available state 1, the second node will not use the first carrier of the MT for backhaul link scheduling. Available state 2 indicates that the DU cell indicated by the DU cell ID cannot affect the sending or receiving behavior or capability of the MT carrier (such as the first carrier) when determining the availability of the soft resource. That is, for available state 2, the second node may use the first carrier of the MT for backhaul link scheduling. Among them, the first carrier of the MT is the MT carrier indicated in the second configuration information, or the first carrier is the MT carrier that the first node can infer based on the DU cell ID configured in the second configuration information.

[0266] Exemplarily, the DCI may include the indication information shown in the following Table 4:

[0267] Table 4

[0268]

[0269]

[0270] In the embodiment of the present application, available state 2 may be a default state. That is, if the DCI does not indicate available state 1, available state 2 is indicated.

[0271] Furthermore, in some embodiments, the second node may further send indication information to the first node, for instructing the first node to interpret the DCI according to the rules in Table 3 or according to the rules in Table 4. For example, if the indication information is "0", it indicates that the DCI needs to be interpreted according to the rules in Table 3; if the indication information is "1", it indicates that the DCI needs to be interpreted according to the rules in Table 4.

[0272] It should be noted that Figure 11 The example in which the second configuration information includes the DU cell ID indicated by the downlink control information (DCI) is used. In practice, the second configuration information may also include only the MT carrier ID indicated by the DCI, without including the DU cell ID. Alternatively, the first node may ignore the DU cell ID. In this case, the resource availability information indicated by the DCI may apply to all DU cells, or to any one or more DU cells.

[0273] Exemplarily, when the second configuration information includes only the MT carrier or serving cell ID, or when the first node ignores the DU cell ID, the above-mentioned available state is explained as follows:

[0274] Available state 1 indicates that all or any DU cell does not need to consider the impact on the MT carrier (such as the first carrier) when determining the availability of the soft resource. That is, for available state 1, the second node will not use the MT's first carrier for backhaul link scheduling. Available state 2 indicates that all or any DU cell cannot affect the transmission or reception behavior or capability of the MT carrier (such as the first carrier) when determining the availability of the soft resource. That is, for available state 2, the second node may use the MT's first carrier for backhaul link scheduling. The MT's first carrier is the MT carrier indicated in the second configuration information.

[0275] It should be understood that the various schemes of the embodiments of the present application can be reasonably combined and used, and the explanations or descriptions of the various terms appearing in the embodiments can be referenced or explained with each other in the various embodiments, without limitation to this.

[0276] It should also be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0277] It is understandable that, in order to implement the functions of any of the above-mentioned embodiments, the network device (such as the first node and the second node, etc.) includes a hardware structure and / or software module corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0278] In the embodiment of the present application, network devices such as the first node and the second node can be divided into functional modules. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0279] For example, when the functional modules are divided in an integrated manner, Figure 12 1 is a block diagram of a network device according to an embodiment of the present application. The network device 1200 may be the first node or the second node in the present application. The network device 1200 may include a receiving unit 1210 and a sending unit 1220.

[0280] In the case where the network device 1200 is a first node, the sending unit 1220 is used to support the first node in executing the above step S801 and / or other processes for the technology described herein. The receiving unit 1210 is used to support the first node in executing the above step S802, S1101, or S1102 and / or other processes for the technology described herein. In the case where the network device 1200 is a second node, the sending unit 1220 is used to support the second node in executing the above step S802, S1101, or S1102 and / or other processes for the technology described herein. The receiving unit 1210 is used to support the first node in executing the above step S801 and / or other processes for the technology described herein.

[0281] It should be noted that the above-mentioned receiving unit 1210 and sending unit 1220 may include a radio frequency circuit. Specifically, the network device (such as the first node or the second node) can receive and send wireless signals through the radio frequency circuit. Generally, the radio frequency circuit includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency circuit can also communicate with other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to Global System for Mobile Communications, General Packet Radio Service, Code Division Multiple Access, Wideband Code Division Multiple Access, Long Term Evolution, email, Short Message Service, etc.

[0282] In an optional implementation, Figure 12 As shown, the network device 1200 may further include a processing unit 1230. When the network device 1200 is a first node, the processing unit 1230 may be used to determine a resource reuse mode, determine MT transmission parameter requirement information, or analyze the availability of MT resources and / or DU resources, and / or perform other processes for the techniques described herein. When the network device 1200 is a second node, the processing unit 1230 may be used to allocate or configure MT resources and / or DU resources, and / or perform other processes for the techniques described herein.

[0283] It should be understood that the network device 1200 according to the embodiment of the present application may correspond to the method of the first node or the second node in the aforementioned method embodiment, for example, Figure 8 or Figure 11 The method in the embodiment, and the above-mentioned and other management operations and / or functions of each module in the network device 1200 are respectively for implementing the corresponding steps of the method of the first node or the second node in the aforementioned method embodiment, so the beneficial effects in the aforementioned method embodiment can also be achieved. For the sake of brevity, they are not described here.

[0284] It should also be understood that each module in the network device 1200 can be implemented in software and / or hardware form, and there is no specific limitation on this. In other words, the network device 1200 is presented in the form of functional modules. The "module" here can refer to a specific application integrated circuit ASIC, a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions. Optionally, in a simple embodiment, those skilled in the art can imagine that the network device 1200 can adopt Figure 13 The processing unit 1230 can be Figure 13 The receiving unit 1210 and the sending unit 1220 can be implemented by the processor 1310 shown in FIG. Figure 13Specifically, the processor is implemented by executing a computer program stored in the memory. Optionally, when the network device 1200 is a chip, the functions and / or implementation processes of the receiving unit 1210 and the sending unit 1220 can also be implemented by pins or circuits. Optionally, the memory is a storage unit in the chip, such as a register, a cache, etc. The storage unit can also be a storage unit in the computer device located outside the chip, such as a memory device. Figure 13 The memory 1330.

[0285] Figure 13 FIG. 1 shows a schematic diagram of the structure of a network device 1200 (such as a first node or a second node) according to an embodiment of the present application. Figure 13 As shown, the network device 1200 includes: a processor 1310 and a transceiver 1320 .

[0286] In which, when the network device 1200 is a first node, the processor 1310 can be used to support the first node in determining a resource reuse mode, determining MT transmission parameter requirement information, or analyzing the availability of MT resources and / or DU resources, and / or other processes for the technology described herein. The transceiver 1320 can be used to support the first node in performing the above steps S801, S802, S1101, or S1102, and / or other processes for the technology described herein. When the network device 1200 is a second node, the processor 1310 can be used to perform MT resource and / or DU resource allocation or configuration, and / or other processes for the technology described herein. The transceiver 1320 can be used to support the second node in performing the above steps S801, S802, S1101, or S1102, and / or other processes for the technology described herein.

[0287] Optionally, the network device 1200 further includes a memory 1330 , which may store the program code in the above method embodiment for easy calling by the processor 1310 .

[0288] Specifically, if the network device 1200 includes a processor 1310, a memory 1330, and a transceiver 1320, the processor 1310, the memory 1330, and the transceiver 1320 communicate with each other via internal connection paths to transmit control and / or data signals. In one possible design, the processor 1310, the memory 1330, and the transceiver 1320 can be implemented by a chip. The processor 1310, the memory 1330, and the transceiver 1320 can be implemented in the same chip, or they can be implemented in different chips, or any two of their functions can be combined and implemented in a single chip. The memory 1330 can store program code, and the processor 1310 calls the program code stored in the memory 1330 to implement the corresponding functions of the network device 1200.

[0289] In an optional manner, when data transmission is implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is implemented in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0290] The steps of the method or algorithm described in conjunction with the embodiments of the present application can be implemented in hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a detection device. Of course, the processor and the storage medium can also be present in the detection device as discrete components.

[0291] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0292] In an optional manner, the present application provides a communication system, including a first node and a second node. The communication system is used to implement the resource configuration method in any possible implementation manner provided in the present application.

[0293] In one optional embodiment, the present application provides a chip system comprising a processor and a memory, wherein the memory stores instructions; when the instructions are executed by the processor, the resource configuration method of any possible implementation provided in the present application is implemented. The chip system may be composed of a chip or may include a chip and other discrete devices.

[0294] In the several embodiments provided in this application, it should be understood that the disclosed user equipment and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0295] The units described as separate components may or may not be physically separate, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple places. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0296] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0297] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0298] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A resource configuration method, characterized in that: The method comprises: The first node sends first information and second information to the second node, wherein the first information is used to indicate resource multiplexing capabilities supported by one or more carriers of a mobile terminal MT of the first node and one or more cells of a distributed unit DU of the first node; and the second information is used to indicate conditions that need to be met for the resource multiplexing capabilities supported by one or more carriers of the MT; Among them, the resource multiplexing capability includes capability 1, capability 2, capability 3 and capability 4, the capability 1 indicates that the MT and the DU can send signals at the same time, the capability 2 indicates that the DU can receive signals while the MT sends signals, the capability 3 indicates that the DU can send signals while the MT receives signals, and the capability 4 indicates that the MT and the DU can receive signals at the same time.

2. The method according to claim 1, characterized in that The method further comprises: The first node receives first configuration information from the second node, where the first configuration information is used to indicate a transmission resource of the MT; The transmission resources of the MT enable the MT to support one of the capabilities 1, 2, 3 or 4, and the transmission resources of the MT enable the MT to meet the conditions required by the capabilities 1, 2, 3 or 4.

3. The method according to claim 1 or 2, characterized in that: The second information is used to indicate conditions that need to be met by the resource multiplexing capability supported by one or more carriers of the MT, specifically including one or more of the following conditions: The downlink receiving power of the MT needs to be set in a specific range; The maximum number of demodulation reference signal DMRS ports for downlink scheduling of the MT; The maximum number of DMRS ports for uplink scheduling of the MT; The timing mode of the uplink scheduling of the MT is set to a specific mode; An uplink transmission beam ID supported by the MT; Downlink receive beam ID supported by the MT; The transmission configuration indication state TCI-state identifier supported by the MT.

4. The method according to claim 3, characterized in that The uplink transmission beam ID supported by the MT is represented by a sounding reference signal resource indication SRI.

5. The method according to any one of claims 1 to 2, characterized in that: The second information is also used to indicate conditions that the resource reuse capability supported by the DU needs to meet, specifically including one or more of the following conditions: The uplink receiving power of the DU needs to be set in a specific range; The downlink transmission power of the DU needs to be set in a specific range; The uplink reception timing mode of the DU is set to a specific mode; Downlink transmit beam ID supported by the DU; The uplink receive beam IDs supported by the DU.

6. The method according to any one of claims 1 to 2, characterized in that: The method further comprises: The first node receives second configuration information from the second node, where the second configuration information includes: DU cell ID indicated by downlink control information DCI; The location of DU cell resource availability information in the DCI; The DU cell resource availability information.

7. The method according to claim 6, characterized in that The second configuration information further includes: an MT carrier ID indicated by the DCI.

8. The method according to claim 7, characterized in that The method further comprises: The first node receives a DCI from the second node, where the DCI is used to indicate an available state of a soft resource; the available state of the soft resource includes an available state 1 and an available state 2; Among them, the available state 1 indicates that the second node will not use the first carrier of the MT for backhaul link scheduling, and the available state 2 indicates that the second node will use the first carrier of the MT for backhaul link scheduling; the first carrier is any carrier of the MT.

9. The method according to any one of claims 1 to 2, characterized in that: The second node is an upper-level node or a donor node of the first node.

10. A resource configuration method, characterized in that: The method comprises: The second node receives first information and second information from the first node; the first information is used to indicate resource multiplexing capabilities supported by one or more carriers of the mobile terminal MT of the first node and one or more cells of the distributed unit DU of the first node; the second information is used to indicate conditions that need to be met for the resource multiplexing capabilities supported by one or more carriers of the MT; Among them, the resource multiplexing capability includes capability 1, capability 2, capability 3 and capability 4, the capability 1 indicates that the MT and the DU can send signals at the same time, the capability 2 indicates that the DU can receive signals while the MT sends signals, the capability 3 indicates that the DU can send signals while the MT receives signals, and the capability 4 indicates that the MT and the DU can receive signals at the same time.

11. The method according to claim 10, characterized in that The method further comprises: The second node sends first configuration information to the first node, where the first configuration information is used to indicate a transmission resource of the MT; The transmission resources of the MT enable the MT to support one of the capabilities 1, 2, 3 or 4, and the transmission resources of the MT enable the MT to meet the conditions required by the capabilities 1, 2, 3 or 4.

12. The method according to claim 10 or 11, characterized in that: The second information is used to indicate conditions that need to be met by the resource multiplexing capability supported by one or more carriers of the MT, specifically including one or more of the following conditions: The downlink receiving power of the MT needs to be set in a specific range; The maximum number of demodulation reference signal DMRS ports for downlink scheduling of the MT; The maximum number of DMRS ports for uplink scheduling of the MT; The timing mode of the uplink scheduling of the MT is set to a specific mode; An uplink transmission beam ID supported by the MT; Downlink receive beam ID supported by the MT; The transmission configuration indication state TCI-state identifier supported by the MT.

13. The method according to claim 12, characterized in that The uplink transmission beam ID supported by the MT is represented by a sounding reference signal resource indication SRI.

14. The method according to any one of claims 10-11, characterized in that The second information is also used to indicate conditions that the resource reuse capability supported by the DU needs to meet, specifically including one or more of the following conditions: The uplink receiving power of the DU needs to be set in a specific range; The downlink transmission power of the DU needs to be set in a specific range; The uplink reception timing mode of the DU is set to a specific mode; Downlink transmit beam ID supported by the DU; The uplink receive beam IDs supported by the DU.

15. The method according to any one of claims 10-11, characterized in that The method further comprises: The second node sends second configuration information to the first node, where the second configuration information includes: DU cell ID indicated by downlink control information DCI; The location of DU cell resource availability information in the DCI; The DU cell resource availability information.

16. The method according to claim 15, characterized in that The second configuration information further includes: an MT carrier ID indicated by the DCI.

17. The method according to claim 16, characterized in that The method further comprises: The second node sends a DCI to the first node, where the DCI is used to indicate an available state of a soft resource; the available state of the soft resource includes an available state 1 and an available state 2; Among them, the available state 1 indicates that the second node will not use the first carrier of the MT for backhaul link scheduling, and the available state 2 indicates that the second node will use the first carrier of the MT for backhaul link scheduling; the first carrier is any carrier of the MT.

18. The method according to any one of claims 10-11, characterized in that The second node is an upper-level node or a donor node of the first node.

19. A first node, characterized in that: The first node comprises: A sending unit, configured to send first information and second information to a second node, wherein the first information is used to indicate resource multiplexing capabilities supported by one or more carriers of a mobile terminal MT of the first node and one or more cells of a distributed unit DU of the first node; and the second information is used to indicate conditions that need to be met for resource multiplexing capabilities supported by one or more carriers of the MT; Among them, the resource multiplexing capability includes capability 1, capability 2, capability 3 and capability 4, the capability 1 indicates that the MT and the DU can send signals at the same time, the capability 2 indicates that the DU can receive signals while the MT sends signals, the capability 3 indicates that the DU can send signals while the MT receives signals, and the capability 4 indicates that the MT and the DU can receive signals at the same time.

20. The first node according to claim 19, characterized in that The first node also includes: A receiving unit, configured to receive first configuration information from the second node, where the first configuration information is used to indicate a transmission resource of the MT; The transmission resources of the MT enable the MT to support one of the capabilities 1, 2, 3 or 4, and the transmission resources of the MT enable the MT to meet the conditions required by the capabilities 1, 2, 3 or 4.

21. The first node according to claim 20, characterized in that: The sending unit and the receiving unit are also used to implement the resource configuration method as described in any one of claims 3-9.

22. A second node, characterized in that: The second node comprises: A receiving unit, configured to receive first information and second information from a first node; the first information is used to indicate resource multiplexing capabilities supported by one or more carriers of a mobile terminal MT of the first node and one or more cells of a distributed unit DU of the first node; the second information is used to indicate conditions that need to be met for resource multiplexing capabilities supported by one or more carriers of the MT; Among them, the resource multiplexing capability includes capability 1, capability 2, capability 3 and capability 4, the capability 1 indicates that the MT and the DU can send signals at the same time, the capability 2 indicates that the DU can receive signals while the MT sends signals, the capability 3 indicates that the DU can send signals while the MT receives signals, and the capability 4 indicates that the MT and the DU can receive signals at the same time.

23. The second node according to claim 22, characterized in that: The second node also includes: A sending unit, configured to send first configuration information to the first node, where the first configuration information is used to indicate a transmission resource of the MT; The transmission resources of the MT enable the MT to support one of the capabilities 1, 2, 3 or 4, and the transmission resources of the MT enable the MT to meet the conditions required by the capabilities 1, 2, 3 or 4.

24. The second node according to claim 23, characterized in that: The receiving unit and the sending unit are also used in the resource configuration method as described in any one of claims 12-18.

25. A first node, characterized in that: The first node comprises: a memory for storing computer program code, wherein the computer program code comprises instructions; Radio frequency circuit, used for sending and receiving wireless signals; A processor is used to execute the instruction so that the first node executes the resource configuration method according to any one of claims 1 to 9.

26. A second node, characterized in that: The second node comprises: a memory for storing computer program code, wherein the computer program code comprises instructions; Radio frequency circuit, used for sending and receiving wireless signals; The processor is used to execute the instruction so that the second node executes the resource configuration method as described in any one of claims 10-18.

27. A communication system, characterized in that: The communication system comprises the first node in any one of claims 19-21 or 25 and the second node in any one of claims 22-24 or 26.

28. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by the processing circuit, the resource configuration method according to any one of claims 1-9, 10-18 is implemented.

29. A chip system, characterized in that: The chip system includes a processing circuit and a storage medium, wherein the storage medium stores instructions; when the instructions are executed by the processing circuit, the resource configuration method described in any one of claims 1-9, 10-18 is implemented.

30. A computer program product, characterized in that The computer program product comprises program instructions, and when the program instructions are executed, the resource configuration method according to any one of claims 1-9, 10-18 is implemented.

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