A resource configuration method, device, communication node and storage medium

Abstract

The present application proposes a resource configuration method, device, communication node and storage medium, the method comprising: obtaining at least one multiplexed resource configuration information, the multiplexed resource configuration information being used to indicate the configuration of the multiplexed resource; and performing data transmission based on the multiplexed resource configuration information.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a resource configuration method, device, communication node and storage medium. Background Art

[0002] For the new generation of mobile communication systems, the node with a wired backhaul link to the core network is the Integrated Access and Backhaul links (IAB) donor. The node connected to the donor IAB (or upper IAB node) by wireless is the IAB node, and there is no direct connection between the IAB node and the core network. The interaction between the IAB node and the core network needs to be forwarded once or multiple times, and finally realized with the help of the IAB donor. Both the IAB donor and the IAB node support the access of the terminal.

[0003] The IAB node can multiplex the parent backhaul link and the sub-backhaul link (or sub-access link) in the time domain, frequency domain or space domain. However, when frequency division multiplexing (FDM) or space division multiplexing (SDM) is used to transmit data simultaneously, the resource allocation problem is a technical problem that needs to be solved urgently. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a resource configuration method, device, communication node and storage medium.

[0005] In a first aspect, an embodiment of the present application provides a resource configuration method, applied to a first communication node, including:

[0006] Acquire at least one multiplexing resource configuration information, where the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource;

[0007] Data transmission is performed based on the multiplexing resource configuration information.

[0008] In a second aspect, an embodiment of the present application provides a resource configuration method, which is applied to a second communication node, including:

[0009] Determine at least one multiplexing resource configuration information, where the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource;

[0010] The multiplexing resource configuration information is sent.

[0011] In a third aspect, an embodiment of the present application provides a resource configuration device, configured at a first communication node, including:

[0012] An acquisition module, configured to acquire at least one multiplexed resource configuration information, wherein the multiplexed resource configuration information is used to indicate the configuration of the multiplexed resource;

[0013] The transmission module is configured to perform data transmission based on the multiplexing resource configuration information.

[0014] In a fourth aspect, an embodiment of the present application provides a resource configuration device, configured at a second communication node, including:

[0015] A determination module, configured to determine at least one multiplexed resource configuration information, wherein the multiplexed resource configuration information is used to indicate the configuration of the multiplexed resource;

[0016] A sending module is configured to send the multiplexing resource configuration information.

[0017] In a fifth aspect, an embodiment of the present application provides a communication node, including:

[0018] one or more processors;

[0019] A storage device for storing one or more programs;

[0020] When the one or more programs are executed by the one or more processors, the one or more processors implement any one of the methods in the embodiments of the present application.

[0021] In a sixth aspect, an embodiment of the present application provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, any one of the methods in the embodiments of the present application is implemented.

[0022] With regard to the above embodiments and other aspects of the present application and their implementation, further description is provided in the accompanying drawings, detailed description and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a resource configuration method provided for this application;

[0024] Figure 1a A schematic diagram of the relationship between nodes in an IAB network provided by this application;

[0025] Figure 2 A schematic diagram of a resource configuration method provided for this application;

[0026] Figure 2a A schematic diagram of a frequency unit RB time-frequency domain resource attribute configuration provided by this application;

[0027] Figure 2b A schematic diagram of a frequency unit RBG time-frequency domain resource attribute configuration provided by the present application;

[0028] Figure 2c A schematic diagram of the soft frequency domain resource RBG numbering and the bitmap method indicating the availability of soft frequency resources when the frequency unit is RBG provided in the present application;

[0029] Figure 3 A schematic diagram of the structure of a resource configuration device provided in this application;

[0030] Figure 4 A schematic diagram of the structure of a resource configuration device provided in this application;

[0031] Figure 5 A schematic diagram of the structure of a communication node provided by this application;

[0032] Figure 6 A schematic diagram of a conversion position provided for this application;

[0033] Figure 7 A schematic diagram of another conversion position provided by the present application;

[0034] Figure 8 A schematic diagram of another conversion position provided for this application. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0036] The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a sequence different from that shown here.

[0037] In an exemplary embodiment, Figure 1 A schematic diagram of a resource configuration method provided by the present application, which can be applied to the case of performing resource configuration. The method can be executed by a resource configuration device provided by the present application, which can be implemented by software and / or hardware and integrated on a first communication node. The first communication node can be an IAB node or an IAB donor.

[0038] The IAB donor consists of a centralized unit (CU) and one or more distributed units (DU). The IAB donor can obtain downlink data or send uplink data to the core network.

[0039] The IAB node has two functions: 1) Distributed Unit DU function (i.e., base station), that is, the IAB node provides wireless access function for child nodes or user terminals (User Equipment, UE) like a base station; 2) Mobile Terminal (Mobile-Termination, MT) function (i.e., terminal), that is, the IAB node is controlled and scheduled by the parent node (IAB node or IAB donor) like the UE.

[0040] Figure 1a This is a schematic diagram of the relationship between nodes in an IAB network provided by this application. Figure 1a , the IAB node is the current node used as a reference, and its upper node is called the parent node, which can be an IAB node or an IAB donor; the lower node of the IAB node can be an IAB node (child node) or a UE. The link between the IAB node and the upper node is called the parent link, and the link between the IAB node and the lower node (or UE) is called the child link. In a further embodiment, the link between the IAB node and its parent node is called the parent backhaul link (i.e., Parent backhaul link), and is divided into a downlink parent backhaul link (i.e., DL Parent Backhaul) and an uplink parent backhaul link (i.e., UL Parent Backhaul); the link between the IAB node and its lower node (i.e., child node) is called a child backhaul link (i.e., Child backhaul link), and is divided into a downlink child backhaul link (i.e., DL Child Backhaul) and an uplink child backhaul link (i.e., UL Child Backhaul); the link between the IAB node and the UE is called a child access link (i.e., Child access link), and is divided into a downlink child access link (i.e., DL Child access) and an uplink child access link (i.e., UL Child access).

[0041] Which multiplexing mode the IAB node adopts depends on the multiplexing capability of the IAB node. Considering that when the IAB node adopts the time division multiplexing (TDM) mode, the parent backhaul link and the child backhaul link (or child access link) cannot transmit data at the same time, the spectrum resource utilization is low, and the transmission delay is large. Therefore, frequency division multiplexing (FDM) or space division multiplexing (SDM) is crucial to improve the spectrum resource utilization and reduce the transmission delay. The IAB node can send data to the parent node and the child node (or terminal) at the same time by using the FDM / SDM mode, and can also receive data sent by the parent node and the child node (or terminal) at the same time, so as to improve resource utilization and reduce transmission delay. In order to enable the IAB node to more effectively use the FDM / SDM mode to transmit signals simultaneously, it is necessary to consider the resource configuration problem when using FDM / SDM.

[0042] In order to enable IAB nodes to more effectively use FDM / SDM to simultaneously transmit signals, this application provides a resource configuration method, such as Figure 1 As shown, the present application provides a resource configuration method, including S110-S120.

[0043] S110. Obtain at least one multiplexing resource configuration information, where the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource.

[0044] The multiplexed resources include but are not limited to frequency domain resources and time domain resources. The first communication node may receive at least one multiplexed resource configuration information sent by the second communication node to perform resource configuration.

[0045] Based on the multiplexing resource configuration information in this embodiment, one or more of frequency domain resource attribute configuration, frequency domain resource configuration and time domain resource configuration can be implemented.

[0046] The first communication node may obtain at least one multiplexing resource configuration information sent by the CU, wherein the multiplexing resource configuration information may include frequency domain resource attribute configuration information.

[0047] The first communication node may also obtain at least one multiplexing resource configuration information of a parent node or a serving cell, wherein the multiplexing resource configuration information may include frequency domain resource configuration information.

[0048] Among them, the CU, parent node and service cell can be the second communication node.

[0049] The frequency domain resource attribute configuration information can be used to configure the frequency domain resource attributes of each frequency unit. The frequency domain resource attributes include one or more of the following: hard, soft, and unavailable. The frequency domain resource configuration information is used to indicate the availability of the frequency domain resource.

[0050] In this embodiment, the multiplexing resource configuration information may also include time domain resource configuration information. The time domain resource configuration information may be used to configure the availability of time domain resources.

[0051] The availability includes at least one of the following: can be multiplexed, cannot be multiplexed, or whether it is available is determined according to the usage of the MT of the first communication node.

[0052] Each piece of multiplexing resource configuration information in the at least one multiplexing resource configuration information obtained in the present application may correspond to a cell, a carrier or at least one resource type.

[0053] The first communication node in the present application may also report the desired multiplexing resource configuration information. For example, the desired multiplexing resource configuration information may be reported to the parent node of the first communication node (or the service cell of the MT of the first communication node). The timing of reporting is not limited, and may be before, after, or when at least one multiplexing resource configuration information is obtained.

[0054] Reporting the expected multiplexing resource configuration information before acquiring at least one multiplexing resource configuration information can be used by the parent node to determine the multiplexing resource configuration information to be sent to the first communication node. The parent node can determine the multiplexing resource configuration to be sent to the first communication node based on the expected multiplexing resource configuration information; or it can directly determine the multiplexing resource configuration information to be sent to the first communication node.

[0055] After acquiring at least one multiplexing resource configuration information, the expected multiplexing resource configuration information is reported, which can be used by the parent node when determining the multiplexing resource configuration information next time. The expected multiplexing resource configuration information can be considered as the multiplexing resource configuration information that the first communication node expects the parent node to send.

[0056] The present application may obtain at least one multiplexing resource configuration information of a subnode of the first communication node from the CU to determine the frequency domain resources that can be used by the sublink of the subnode and / or indicate the availability of the soft frequency domain resources of the subnode based on the multiplexing resource configuration information.

[0057] It should be noted that the specific content of the desired multiplexing resource configuration information and the multiplexing resource configuration information of the first communication node in this application can be referred to the corresponding content of at least one multiplexing resource configuration information obtained by the first communication node (i.e., the multiplexing resource configuration information of the first communication node), which will not be repeated here.

[0058] S120: Perform data transmission based on the multiplexing resource configuration information.

[0059] After obtaining at least one multiplexed resource configuration information, the resources used for data transmission can be determined, and then data transmission is performed on the determined resources.

[0060] The present application provides a resource configuration method, which first obtains at least one multiplexed resource configuration information, wherein the multiplexed resource configuration information is used to indicate the configuration of the multiplexed resource; and then performs data transmission based on the multiplexed resource configuration information. The method effectively solves the resource configuration problem and improves resource utilization.

[0061] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. It should be noted that in order to make the description concise, only the differences from the above embodiment are described in the variant embodiment.

[0062] In one embodiment, the method further comprises one or more of the following:

[0063] Report expected reuse resource configuration information;

[0064] Obtain at least one multiplexing resource configuration information of a child node of the first communication node.

[0065] In one embodiment, the multiplexing resource configuration information includes one or more of the following: reference subcarrier spacing; frequency domain resource attribute configuration information; time domain resource configuration information; or, the multiplexing resource configuration information includes one or more of the following: reference subcarrier spacing; frequency domain resource configuration information; time domain resource configuration information.

[0066] In one embodiment, the frequency domain resource attribute configuration information is used to configure the frequency domain resource attributes of each frequency unit.

[0067] The frequency unit includes any one of the following: resource block; resource block group; subband; subband group; subcarrier; subcarrier group; frequency resource group, and the number of frequency resource groups is the result of dividing the bandwidth by m and rounded up, where m is an integer greater than or equal to 1. When the result of dividing the bandwidth by m is an integer, the size of each frequency resource group is m resource blocks. When the result of dividing the bandwidth by m is not an integer, the size of one frequency resource group is the bandwidth mod m, and the sizes of the remaining frequency resource groups are m, and mod is a modulo operation.

[0068] In one embodiment, the frequency domain resource attributes include one or more of the following: hard; soft; unavailable.

[0069] In one embodiment, when the frequency domain resource is configured as hard, the sub-link of the node corresponding to the frequency domain resource may use the frequency domain resource;

[0070] In the case where the frequency domain resource is configured as soft, whether the sublink of the node corresponding to the frequency domain resource can use the frequency domain resource is indicated by the parent node or the serving cell of the node;

[0071] When a frequency domain resource is configured as unavailable, a sub-link of a node corresponding to the frequency domain resource cannot use the frequency domain resource.

[0072] When the frequency domain resources are configured as soft, the frequency domain resources can be considered to be shareable, and the parent node or the serving cell can determine the availability of the sub-link of the node corresponding to the frequency domain resources for the frequency domain resources according to actual conditions.

[0073] In one embodiment, when the frequency domain resources are configured as soft, the method includes one of the following:

[0074] Indicating the availability of each frequency unit of the frequency domain resource by a bitmap, wherein each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value, or has a corresponding relationship with the bandwidth corresponding to the reference subcarrier spacing, or is the total number of frequency units or soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing;

[0075] Indicating the availability of each frequency unit of the frequency domain resource by indicating the position of the available frequency unit;

[0076] Indicating the availability of each frequency unit of the frequency domain resources by indicating the index of the available frequency unit, the frequency unit not indicated is unavailable or the availability is determined according to the usage of the mobile terminal resources of the first communication node;

[0077] The availability of each frequency unit of the frequency domain resources is indicated by indicating an index of an unavailable frequency unit, and the unindicated frequency unit is available or the availability is determined according to the usage of the mobile terminal resources of the first communication node.

[0078] The present application indicates the availability of each frequency unit of the soft frequency domain resource through a bitmap. Wherein, when the number of bits in the bitmap is greater than the total number of soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, only the bits corresponding to the soft frequency units in the bitmap are valid, and the remaining bits are invalid, or a part of the bitmap (for example, the first X bits, where X is the total number of soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing) is used to indicate the availability of each frequency unit of the soft frequency domain resource.

[0079] The index of the frequency unit can uniquely identify the frequency unit, such as by numbering the soft frequency resources according to the frequency unit, or numbering the bandwidth corresponding to the soft frequency resources according to the frequency unit, and using the number as the index of the frequency unit.

[0080] When determining the availability according to the resource usage of the first communication node mobile terminal, the availability can be determined based on the conflict between the frequency unit and the resource used by the mobile terminal. The conflict includes conflict and non-conflict.

[0081] In one embodiment, the frequency domain resource configuration information indicates the available frequency domain resources in one of the following ways:

[0082] A bitmap, each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value or the total number of frequency units included in the bandwidth corresponding to the reference subcarrier spacing;

[0083] The location of available frequency units;

[0084] The index of the available frequency units.

[0085] In one embodiment, the frequency unit includes any one of the following: resource block; resource block group; subband; subband group; subcarrier; subcarrier group; frequency resource group, the number of frequency resource groups is the result of dividing the bandwidth by m rounded up, m is an integer greater than or equal to 1, when the result of dividing the bandwidth by m is an integer, the size of each frequency resource group is m resource blocks, when the result of dividing the bandwidth by m is not an integer, the size of one frequency resource group is the bandwidth modm, and the size of the remaining frequency resource groups is m, and mod is a modulo operation.

[0086] In one embodiment, the frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing; or,

[0087] The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing and space division multiplexing; or,

[0088] The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt all multiplexing modes.

[0089] In one embodiment, the time domain resource configuration information includes one or more of the following: a multiplexing resource period; a multiplexing resource time slot set; a multiplexing resource symbol; and a multiplexing mode.

[0090] The resource reuse period can be considered as the period of the resource reuse. In this embodiment, the availability is determined according to the period.

[0091] The multiplexed resource time slot set may indicate a time slot that can be multiplexed within a multiplexed resource period. The multiplexed resource symbol may indicate the multiplexability of a symbol in a multiplexed time slot within a multiplexed resource period; or the multiplexability of a symbol within a multiplexed resource period. The multiplexability includes at least one of the following: multiplexable, non-multiplexable, or whether multiplexable is indicated according to other information. The other information is not limited here.

[0092] In one embodiment, the multiplexed resource time slot set is indicated by one of the following methods: a bitmap, in which one bit in the bitmap corresponds to a time slot within a multiplexed resource period, and the bit value of the bitmap is used to indicate whether the corresponding time slot is a multiplexed resource; the index of the multiplexed time slot within the multiplexed resource period; the starting time slot index and the number of multiplexed time slots within the multiplexed resource period; the starting time slot index and the ending time slot index that can be multiplexed within the multiplexed resource period.

[0093] The start time slot index can be considered as the index of the start time slot. The end time slot index can be considered as the index of the end time slot.

[0094] In one embodiment, the multiplexing resource symbol indicates the multiplexing availability of symbols in multiplexing time slots in the multiplexing resource time slot set; or, the multiplexing availability of symbols within a multiplexing resource period.

[0095] In one embodiment, the multiplexed resource symbols are configured in one of the following ways: configuring a multiplexed symbol for each time slot individually; configuring a multiplexed symbol for all time slots uniformly.

[0096] In one embodiment, symbols not included in the multiplexed resource symbols are not multiplexed; or the multiplexing nature of symbols not included in the multiplexed resource symbols is determined according to resource usage of the mobile terminal of the first communication node.

[0097] In one embodiment, the time domain resource configuration information includes one or more sub-time domain resource configuration information, and the sub-time domain resource configuration information includes one or more of the following: multiplexing resource period; multiplexing resource offset; multiplexing resource duration; multiplexing mode.

[0098] The multiplexing resource offset may indicate the starting position of the multiplexing resource within the multiplexing period.

[0099] In one embodiment, the unit of the multiplexing resource offset or the multiplexing resource duration is one of the following: a subframe; a time slot; an orthogonal frequency division multiplexing symbol.

[0100] In one embodiment, the multiplexing method includes one or more of the following: frequency division multiplexing; space division multiplexing.

[0101] In one embodiment, the time domain resource configuration information configures the time domain resources in one of the following ways:

[0102] A set of first time slot multiplexing resource combinations is provided through first indication information, each first time slot multiplexing resource combination indicates the multiplexing of each time slot in a plurality of consecutive time slots, each first time slot multiplexing resource combination is identified by a different first combination index, and the first combination index is indicated by second indication information, and the first combination index indicated by the second indication information indicates the multiplexing of each time slot in L1 consecutive time slots starting from the time slot in which the second indication information is received, where L1 is the number of time slots corresponding to the first time slot multiplexing resource combination identified by the first combination index;

[0103] A set of second time slot multiplexing resource combinations is provided through third indication information, each second time slot multiplexing resource combination indicates the reusability of symbols in each time slot in a plurality of consecutive time slots, each second time slot multiplexing resource combination is identified by a different second combination index, and the second combination index is indicated through fourth indication information, the second combination index indicated by the fourth indication information is used to indicate the reusability of each time slot in L2 consecutive time slots starting from the time slot in which the fourth indication information is received, where L2 is the number of time slots corresponding to the second time slot multiplexing resource combination identified by the second combination index;

[0104] The reusability of a signal or a channel indicates the reusability of a corresponding time slot resource.

[0105] The first indication information and the third indication information may be Radio Resource Control (RRC) signaling or Medium Access Control Element (MAC CE). The second indication information and the fourth indication information may be Physical Downlink Control Channel (PDCCH).

[0106] The "first" and "second" in this application are only used to distinguish the corresponding content. Exemplarily, the first time slot multiplexing resource combination and the second time slot multiplexing resource combination are only used to distinguish different time slot multiplexing resource combinations. The "multiple" of the multiple consecutive time slots indicated by the first time slot multiplexing resource combination is not limited, and those skilled in the art can set at least one time slot for the first time slot multiplexing resource according to actual conditions. The "multiple" of the multiple time slots indicated by the second time slot multiplexing resource combination is also not limited.

[0107] The present application may indicate the reusability of time slot resources through different types of signals or channels, such as indicating that all time slot resources occupied by the indicated signal may be reused or may not be reused.

[0108] In one embodiment, each multiplexing resource configuration information corresponds to a cell, a carrier or at least one resource type.

[0109] In one embodiment, the frequency domain resource configuration information is used to indicate one of the following: frequency resources available to the mobile terminal of the first communication node; frequency resources available to the distributed unit of the first communication node.

[0110] In one embodiment, the time domain resource configuration information is used to indicate one of the following: time domain resources that can be reused by mobile terminals of the first communication node; time domain resources that can be reused by distributed units of the first communication node.

[0111] In an exemplary embodiment, the present application provides a resource configuration method. Figure 2 A flow chart of a resource configuration method provided by the present application, which method can be applicable to the case of performing resource configuration. The method can be performed by a resource configuration device provided by the present application, which can be implemented by software and / or hardware and integrated on a second communication node. The second communication node can be a CU or DU or a donor IAB or an IAB node or any node that supports a relay function. For details not yet provided in this example, please refer to the above embodiment, which will not be described in detail here.

[0112] like Figure 2 As shown, a resource configuration method provided by the present application comprises the following steps:

[0113] S210. Determine at least one piece of multiplexing resource configuration information, where the multiplexing resource configuration information is used to indicate configuration of multiplexing resources.

[0114] This step may determine at least one multiplexing resource configuration information of the first communication node based on the expected multiplexing resource configuration information sent by the first communication node; or may directly determine at least one multiplexing resource configuration information of the first communication node.

[0115] This step can determine the multiplexing resource configuration information based on the availability and multiplexing of the resources by the first communication node, which is limited here.

[0116] In one embodiment, the second communication node may be a CU, and the multiplexing resource configuration information may include frequency domain resource attribute configuration information. The second communication node may also be a DU or a parent node of the first communication node, and the multiplexing resource configuration information may include frequency domain resource configuration information. The multiplexing resource configuration information may also include time domain resource configuration information.

[0117] Exemplarily, when configuring frequency domain resource attribute information, the content included in the frequency domain resource attribute information can be determined based on whether the sub-link of the node corresponding to the frequency domain resource can use the frequency domain resource; the content included in the frequency domain resource attribute information can also be determined based on whether the sub-link and parent link of the node corresponding to the frequency domain resource can share the frequency domain resource.

[0118] S220: Send the multiplexing resource configuration information.

[0119] After determining the multiplexing resource configuration information, this step may send the determined multiplexing resource configuration information to the first communication node so that the first communication node can determine the resources used for data transmission.

[0120] The resource configuration method provided by the present application first determines at least one multiplexed resource configuration information, wherein the multiplexed resource configuration information is used to indicate the configuration of the multiplexed resource; and then sends the multiplexed resource configuration information. The method effectively solves the resource configuration problem and improves resource utilization.

[0121] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. It should be noted that in order to make the description concise, only the differences from the above embodiment are described in the variant embodiment.

[0122] In one embodiment, the method further comprises: one or more of the following:

[0123] Receiving desired multiplexing resource configuration information sent by the first communication node;

[0124] At least one multiplexing resource configuration information of a child node of the first communication node is determined and sent.

[0125] In one embodiment, the multiplexing resource configuration information includes one or more of the following: reference subcarrier spacing; frequency domain resource attribute configuration information; time domain resource configuration information; or, the multiplexing resource configuration information includes one or more of the following: reference subcarrier spacing; frequency domain resource configuration information; time domain resource configuration information.

[0126] In one embodiment, the frequency domain resource attribute configuration information is used to configure the frequency domain resource attributes of each frequency unit.

[0127] In one embodiment, the frequency domain resource attributes include one or more of the following: hard; soft; unavailable.

[0128] In one embodiment, determining the reuse resource configuration information includes one or more of the following:

[0129] The frequency domain resource attribute of the frequency domain resource that can be used by the sub-link of the node corresponding to the frequency domain resource is configured as hard;

[0130] The frequency domain resource attribute of the frequency domain resource that can be shared by the sub-link and the parent link of the node corresponding to the frequency domain resource is configured as soft;

[0131] The frequency domain resource attribute of the frequency domain resource that cannot be used by the sub-link of the node corresponding to the frequency domain resource is configured as unavailable.

[0132] In one embodiment, for a frequency resource configured as soft, availability is indicated in one of the following ways:

[0133] Indicating the availability of each frequency unit of the frequency domain resource by a bitmap, wherein each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value, or has a corresponding relationship with the bandwidth corresponding to the reference subcarrier spacing, or is the total number of frequency units or soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing;

[0134] Among them, when the number of bits in the bitmap is greater than the total number of soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, only the bits corresponding to the soft frequency units in the bitmap are valid, and the remaining bits are invalid; or a part of the bitmap (for example, the first X bits, where X is the total number of soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing) is used to indicate the availability of each frequency unit of the soft frequency domain resources.

[0135] Indicating the availability of each frequency unit of the frequency domain resource by indicating the position of the available frequency unit;

[0136] Indicating the availability of each frequency unit of the frequency domain resources by indicating the index of the available frequency unit, the frequency unit not indicated is unavailable or the availability is determined according to the usage of the mobile terminal resources of the first communication node;

[0137] The availability of each frequency unit of the frequency domain resources is indicated by indicating an index of an unavailable frequency unit, and the unindicated frequency unit is available or the availability is determined according to the usage of the mobile terminal resources of the first communication node.

[0138] In one embodiment, the frequency domain resource configuration information indicates the available frequency domain resources in one of the following ways:

[0139] A bitmap, each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value or the total number of frequency units included in the bandwidth corresponding to the reference subcarrier spacing;

[0140] The location of available frequency units;

[0141] The index of the available frequency units.

[0142] In one embodiment, the frequency unit includes any one of the following: resource block; resource block group; subband; subband group; subcarrier; subcarrier group; frequency resource group, the number of frequency resource groups is the result of dividing the bandwidth by m rounded up, m is an integer greater than or equal to 1, when the result of dividing the bandwidth by m is an integer, the size of each frequency resource group is m resource blocks, when the result of dividing the bandwidth by m is not an integer, the size of one frequency resource group is the bandwidth modm, and the size of the remaining frequency resource groups is m, and mod is a modulo operation.

[0143] In one embodiment, the frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing; or,

[0144] The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing and space division multiplexing; or,

[0145] The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt all multiplexing modes.

[0146] In one embodiment, the time domain resource configuration information includes one or more of the following: a multiplexing resource period; a multiplexing resource time slot set; a multiplexing resource symbol; and a multiplexing mode.

[0147] In one embodiment, the multiplexed resource time slot set is indicated by one of the following methods: a bitmap, in which one bit corresponds to a time slot within a multiplexed resource period, and the bit value of the bitmap is used to indicate whether the corresponding time slot is a multiplexed resource; the index of the multiplexed time slot within the multiplexed resource period; the starting time slot index and the number of multiplexed time slots within the multiplexed resource period; the starting time slot index and the ending time slot index that can be multiplexed within the multiplexed resource period.

[0148] In one embodiment, the multiplexing resource symbol indicates the multiplexing availability of symbols in multiplexing time slots in the multiplexing resource time slot set; or, the multiplexing availability of symbols within a multiplexing resource period.

[0149] In one embodiment, the multiplexed resource symbols are configured in one of the following ways: configuring a multiplexed symbol for each time slot individually; configuring a multiplexed symbol for all time slots uniformly.

[0150] In one embodiment, symbols not included in the multiplexed resource symbols are not multiplexed; or the multiplexing nature of symbols not included in the multiplexed resource symbols is determined according to resource usage of the mobile terminal of the first communication node.

[0151] In one embodiment, the time domain resource configuration information includes one or more sub-time domain resource configuration information, and the sub-time domain resource configuration information includes one or more of the following: multiplexing resource period; multiplexing resource offset; multiplexing resource duration; multiplexing mode.

[0152] In one embodiment, the unit of the multiplexing resource offset or the multiplexing resource duration is one of the following: a subframe; a time slot; an orthogonal frequency division multiplexing symbol.

[0153] In one embodiment, the multiplexing method includes one or more of the following: frequency division multiplexing; space division multiplexing.

[0154] In one embodiment, the time domain resource configuration information configures the time domain resources in one of the following ways:

[0155] A set of first time slot multiplexing resource combinations is provided through first indication information, each first time slot multiplexing resource combination indicates the multiplexing of each time slot in a plurality of consecutive time slots, each first time slot multiplexing resource combination is identified by a different first combination index, and the first combination index is indicated by second indication information, and the first combination index indicated by the second indication information indicates the multiplexing of each time slot in L1 consecutive time slots starting from the time slot in which the second indication information is received, where L1 is the number of time slots corresponding to the first time slot multiplexing resource combination identified by the first combination index;

[0156] A set of second time slot multiplexing resource combinations is provided through third indication information, each second time slot multiplexing resource combination indicates the reusability of symbols in each time slot in a plurality of consecutive time slots, each second time slot multiplexing resource combination is identified by a different second combination index, and the second combination index is indicated through fourth indication information, the second combination index indicated by the fourth indication information is used to indicate the reusability of each time slot in L2 consecutive time slots starting from the time slot in which the fourth indication information is received, where L2 is the number of time slots corresponding to the second time slot multiplexing resource combination identified by the second combination index;

[0157] The reusability of a signal or a channel indicates the reusability of a corresponding time slot resource.

[0158] In one embodiment, each multiplexing resource configuration information corresponds to a cell, a carrier or at least one resource type.

[0159] In one embodiment, the frequency domain resource configuration information is used to indicate one of the following: frequency resources available to the mobile terminal of the first communication node; frequency resources available to the distributed unit of the first communication node.

[0160] In one embodiment, the time domain resource configuration information is used to indicate one of the following: time domain resources that can be reused by mobile terminals of the first communication node; time domain resources that can be reused by distributed units of the first communication node.

[0161] The following is an exemplary description of the present application:

[0162] New radio (NR) allows for more flexible network networking and the existence of new types of network nodes than the second-generation wireless telephone technology (2G), third-generation mobile communication technology (3G), and fourth-generation communication technology (4G) systems. Currently, the new type of node, the IAB node, which integrates the backhaul link and the normal NR access link, can provide more flexible coverage and networking than a single cellular coverage, and will be an important part of the future mobile communication network.

[0163] Embodiment 1: In this example, CU provides hard, soft and unavailable attributes in the frequency domain.

[0164] The first node, i.e., the first communication node, receives resource configuration information; the resource configuration information includes at least one of the following: a multiplexing resource configuration set of the first node, i.e., at least one multiplexing resource configuration information, a multiplexing resource configuration set of a subnode of the first node. Each of the multiplexing resource configurations corresponds to a cell or a carrier or at least one resource type, and the multiplexing resource configuration includes at least one of the following: a reference subcarrier spacing, a frequency domain resource attribute configuration (i.e., frequency domain resource attribute information), and a time domain resource configuration (i.e., time domain resource configuration information). The frequency domain resource attribute configuration is used to configure the frequency domain resource attributes of each frequency unit.

[0165] The frequency domain resource attribute includes at least one of the following: hard, soft, and unavailable.

[0166] In one embodiment, when the frequency domain resources of a node are configured as hard, the sub-links of the node may use the frequency domain resources.

[0167] In one embodiment, when the frequency domain resources of a node are configured as soft, whether the sublink of the node can use the frequency domain resources is indicated by its parent node in an explicit or implicit manner.

[0168] In one embodiment, when a frequency domain resource of a node is configured as unavailable, a sub-link of the node cannot use the frequency domain resource.

[0169] The node may be the first node or a child node of the first node.

[0170] In one embodiment, the soft frequency domain resources can indicate their availability in the following manner: using a bitmap to indicate whether each frequency unit of the soft frequency resources is available, wherein each bit corresponds to a frequency unit, the size of the bitmap is the total number of frequency units or soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, or is a fixed value, and the availability of the corresponding frequency unit is represented by the bit value; or, indicating the location of the available frequency unit; or, indicating a set of available frequency unit indexes.

[0171] The frequency unit is any one of the following: resource block, resource block group, subband, subband group, subcarrier, subcarrier group, frequency resource group (for example, the number of frequency resource groups is the bandwidth divided by m rounded up, or the maximum number of frequency resource groups is c, and the actual number is the minimum value of the bandwidth N and c, i.e., min{N,c}); where m or c is an integer greater than or equal to 1.

[0172] In one embodiment, the validity of the frequency domain resource attribute configuration is one of the following: only valid when FDM multiplexing is used for the parent link and the sub-link; only valid when FDM and SDM are used for the parent link and the sub-link; valid for all multiplexing methods of the parent link and the sub-link.

[0173] In one embodiment, the time domain resource configuration includes at least one of the following: a multiplexing resource period, a multiplexing resource time slot set, a multiplexing resource symbol in each multiplexing resource time slot, and a multiplexing mode indication.

[0174] In one embodiment, the time domain resource configuration includes at least one sub-time domain resource configuration, wherein the sub-time domain resource configuration includes at least one of the following: a multiplexing resource period, a multiplexing resource offset, a multiplexing resource duration, and a multiplexing mode indication.

[0175] The multiplexing mode indication is used to indicate the multiplexing mode adopted by the multiplexing resource. The multiplexing mode includes at least one of the following: FDM, SDM.

[0176] The second node, that is, the second communication node sends the resource configuration information. In this embodiment, the first node may be an IAB node, and the second node may be a CU.

[0177] Example 1: This example shows a method for configuring the frequency domain resource attributes of an IAB node (ie, IAB node) DU:

[0178] In this example, the frequency domain resource attributes of the IAB node DU are configured through the CU.

[0179] In one embodiment, the CU configures frequency domain resource attributes for each carrier of each cell of the IAB node DU. For example, for a cell of the IAB node DU, assuming that the cell adopts time division duplexing (TDD), a carrier is configured, and the CU configures frequency domain resource attributes for the carrier. If the cell is also configured with a supplementary uplink (SUL) carrier, the CU also configures frequency domain resource attributes for the SUL carrier. For another example, for a cell of the IAB node DU, assuming that the cell adopts frequency division duplexing (FDD), the CU configures frequency domain resource attributes for the UL carrier and DL carrier of the cell respectively.

[0180] In one embodiment, the CU configures frequency domain resource attributes for each carrier. For example, if the IAB node DU is configured with one carrier, a frequency domain resource attribute is configured for the carrier, and all cells using the carrier have the same frequency domain resource attribute. If the IAB node DU is configured with multiple carriers, a frequency domain resource attribute is configured for each carrier.

[0181] In one embodiment, the CU configures frequency domain resource attributes for each carrier according to the time resource type. For example, different time resource types (i.e., resource types, such as uplink, downlink, and flexible) correspond to different frequency domain resource attributes. For a TDD carrier, frequency domain resource attributes are configured for downlink resources, uplink resources, and flexible resources respectively; or one frequency domain resource attribute is configured for downlink resources and flexible resources, and one frequency domain resource attribute is configured for uplink resources; or one frequency domain resource attribute is configured for uplink resources and flexible resources, and one frequency domain resource attribute is configured for downlink resources.

[0182] For a carrier of an IAB node DU, the bandwidth corresponding to the reference subcarrier spacing is N resource blocks (RB), and the frequency domain resource attributes of the carrier can be configured in the following manner: For a frequency unit, its attribute can be one of the following: hard, soft, unavailable. Among them, the frequency unit includes but is not limited to any of the following: resource block, resource block group (RBG), subband, subband group, subcarrier, subcarrier group, frequency resource group.

[0183] When the frequency domain resource is configured as hard, the IAB node DU (or a sub-link of the IAB node) can use the frequency domain resource.

[0184] When the frequency domain resources are configured as soft, whether the IAB node DU (or the sub-link of the IAB node) can use the frequency domain resources is indicated by its parent node in an explicit or implicit manner.

[0185] When a frequency domain resource is configured as unavailable, the IAB node DU (or a sub-link of the IAB node) cannot use the frequency domain resource.

[0186] Figure 2a A schematic diagram of a frequency unit RB time-frequency domain resource attribute configuration provided by this application, Figure 2b The present application provides a schematic diagram of frequency domain resource attribute configuration when the frequency unit is RBG. Figure 2a shows the frequency domain resource configuration when the frequency unit is RB. Figure 2b The figure shows the frequency domain resource configuration when the frequency unit is RBG. Assuming that the RBG size is k RBs, the total number of RBGs is ceil(N / k), where ceil() means rounding up. If N / k is an integer, the size of all RBGs is k RBs; if N / k is not an integer, the size of the last or first RBG is N mod k RBs, and the size of the remaining RBGs is k, where mod means modulo operation, such as Figure 2b The last RBG in contains 3 RBs.

[0187] When the frequency unit is a subband, the number and size of the subband are determined in a manner similar to that of the RBG, and the RBG can be replaced by the subband.

[0188] When the frequency unit is a subband group, the number and size of the subband group are determined in a manner similar to that of the RBG, and RB / RBG is replaced by subband / subband group.

[0189] The schematic diagram of the resource attribute configuration in the time and frequency domain for the frequency unit is subcarrier and subcarrier group respectively. Figure 1-1 and Figure 1-2 Similarly, RB / RBG can be replaced with subcarrier / subcarrier group. The total number of subcarriers is 12N, and the calculation method of the number and size of subcarrier groups is similar.

[0190] In one embodiment, a CU provides one of: RBG size, subband size, m.

[0191] In one embodiment, the number of frequency resource groups is ceil(N / m), where m is an integer greater than or equal to 1. If N / m is an integer, the size of each frequency resource group is m RBs. If N / m is not an integer, the size of one of the frequency resource groups (e.g., the last or first frequency resource group) is N mod m RBs, and the size of the remaining frequency resource groups is m RBs.

[0192] In one embodiment, the maximum number of frequency resource groups is c. The actual number of frequency resource groups is the minimum value x of the bandwidth N and the maximum number of frequency resource groups c, that is, x=min{N,c}. If x=N, the frequency resource group is a resource block RB. If x=c and N / x is an integer, the size of each frequency resource group is N / x RBs. If x=c and N / x is not an integer, the size of N mod x frequency resource groups is ceil(N / x) RBs, and the size of the remaining frequency resource groups is floor(N / x) RBs. Where ceil() and floor() represent rounding up and rounding down, respectively.

[0193] The method for determining the size and number of frequency units in the following examples is similar and will not be described in detail.

[0194] The reference subcarrier spacing is configured by the CU or determined by default.

[0195] For example, the default method can be: the largest subcarrier spacing among the multiple subcarrier spacings corresponding to the carrier is used as the reference subcarrier spacing; or, the smallest subcarrier spacing among the multiple subcarrier spacings corresponding to the carrier is used as the reference subcarrier spacing; or, the reference subcarrier spacing is determined according to the frequency range of the carrier, for example, different frequency ranges correspond to different reference subcarrier spacings, the carrier belongs to frequency range 1 (FR1), and the reference subcarrier spacing is 60kHz; the carrier belongs to frequency range 2, and the reference subcarrier spacing is 120kHz.

[0196] In one embodiment, the frequency domain resource attribute configuration of the IAB node is only valid when the sub-link and parent link of the IAB node adopt FDM multiplexing.

[0197] In one embodiment, the frequency domain resource attribute configuration of the IAB node is effective for both FDM and SDM multiplexing of the child link and parent link of the IAB node.

[0198] In one embodiment, if a cell-level (i.e., cell-specific) signal or channel of an IAB node, such as a synchronization signal block (SSB), a physical random access channel (PRACH), SIB1 in a system information block (SIB), etc., is transmitted on a frequency unit, the frequency unit may be regarded as a hard frequency unit.

[0199] Example 2: This example shows the indication method of the availability of soft frequency domain resources of the IAB node DU. The availability of soft frequency domain resources of the IAB node DU cell is indicated by the parent node of the IAB node (or the serving cell of the IAB node MT). The indication method is one of the following:

[0200] Method 1: All frequency domain resources configured as soft are numbered according to frequency units, for example, in ascending or descending order of frequency, and the availability of each frequency unit is indicated in a bitmap manner. The size of the bitmap is the total number of soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing.

[0201] Figure 2c This is a schematic diagram of the soft frequency domain resource RBG numbering and the bitmap method indicating the availability of soft frequency resources when the frequency unit is RBG provided in this application, see Figure 2c , a bit value of 1 indicates that the corresponding soft frequency unit is available, a bit value of 0 indicates that it is unavailable, M is the total number of RBGs, and X is the total number of soft RBGs.

[0202] Mode 2: The bandwidth corresponding to the reference subcarrier spacing is numbered according to the frequency unit, for example, in ascending or descending frequency order, and the availability of each frequency unit is indicated in a bitmap manner. The size of the bitmap is the total number of frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, and the availability of the corresponding frequency unit is indicated by a bit value. In one embodiment, the bitmap is only valid for soft frequency resources and is invalid for other resources.

[0203] Method 3: The bandwidth corresponding to the reference subcarrier spacing is numbered according to the frequency unit number, for example, in ascending or descending frequency order, indicating the available frequency unit index, and the soft frequency unit not indicated is unavailable; or indicating the unavailable frequency unit index, and the soft frequency unit not indicated is available.

[0204] Mode 4: The bandwidth corresponding to the reference subcarrier spacing is numbered according to the frequency unit number, for example, in ascending or descending frequency order, indicating the available frequency unit index, and the availability of the soft frequency unit not indicated is determined according to the usage of the IAB node MT. For example, the IAB node DU can be determined based on whether there is a conflict with the IAB node MT when using the frequency unit. If there is no conflict, it is available, otherwise it is unavailable. Or indicate the unavailable frequency unit index, and the availability of the soft frequency unit not indicated is determined according to the usage of the IAB node MT.

[0205] Mode 5: Use X bits in the bitmap (e.g., the least significant X bits, or the most significant X bits) to indicate the availability of X soft frequency units. The size of the bitmap is the total number of frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, or is a fixed value (e.g., 275), or has a corresponding relationship with the bandwidth corresponding to the reference subcarrier spacing, and X is the total number of soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, or the total number of frequency units contained in the bandwidth corresponding to the reference subcarrier spacing.

[0206] Mode 6: Indicating the location of available frequency units. For example, the resource indication value (RIV) indicates the available starting frequency unit and the number of frequency units of the IAB node DU within the bandwidth corresponding to the reference subcarrier spacing, or indicates the available starting frequency unit and the ending frequency unit of the IAB node DU (that is, the starting frequency unit and the ending frequency unit and all the soft frequency units between them are available). In one embodiment, the indication is only valid for soft frequency resources and is invalid for other resources.

[0207] Mode 7: Indicate the location of the available frequency unit. For example, all frequency domain resources configured as soft are numbered according to the frequency unit, and the resource indication value indicates the starting frequency unit and the number of frequency units available to the IAB node DU, or indicates the starting frequency unit and the ending frequency unit available to the IAB node DU (that is, the starting frequency unit and the ending frequency unit and all the soft frequency units between them are available).

[0208] In one embodiment, different bit values ​​are used to indicate the availability of the soft frequency unit. For example, a bit value of 1 indicates availability, and a bit value of 0 indicates unavailability.

[0209] In one embodiment, different bit values ​​are used to indicate the availability of the soft frequency unit. For example, a bit value of 1 indicates availability, and a bit value of 0 indicates that the availability of the frequency unit can be determined based on the usage of the IAB node MT, for example, the IAB node DU determines whether the frequency unit conflicts with the IAB node MT when using the frequency unit. If there is no conflict, it is available, otherwise it is unavailable.

[0210] Among them, the frequency unit includes but is not limited to one of the following: RB, RBG, subband, subband group, subcarrier, subcarrier group, frequency resource group (for example, the number of frequency resource groups is the bandwidth divided by m rounded up, or the maximum number of frequency resource groups is c, and the actual number is the minimum value of the bandwidth N and c, that is, min{N,c}).

[0211] In one embodiment, a CU provides one of: RBG size, subband size, m, c.

[0212] Example 3, this example shows semi-static, per-slot and per-symbol time domain resource configuration:

[0213] This example shows how to configure the time domain resources of the IAB node DU.

[0214] The CU provides time domain resource configuration for each cell or each carrier or at least one time resource type of the IAB node DU.

[0215] In one embodiment, the CU provides a time domain resource configuration for each cell of the IAB node DU, for example, all carriers of the cell use the same time domain resource configuration.

[0216] In one embodiment, the CU provides time domain resource configuration for each carrier of each cell of the IAB node DU. For example, for a cell of the IAB node DU, assuming that the cell adopts time division duplexing and configures one carrier, the CU provides time domain resource configuration for the carrier. For another example, assuming that the cell adopts frequency division duplexing, the CU provides time domain resource configuration for the UL carrier and DL carrier of the cell respectively.

[0217] In one embodiment, the CU provides a time domain resource configuration for each carrier. For example, if the IAB node DU is configured with one carrier, a time domain resource configuration is provided for the carrier, and all cells using the carrier have the same time domain resource configuration. If the IAB node DU is configured with multiple carriers, a time domain resource configuration is provided for each carrier.

[0218] In one embodiment, the CU provides a time domain resource configuration for each carrier according to the time resource type. For example, different time resource types correspond to different time domain resource configurations. For a TDD carrier, time domain resource configurations are provided for downlink resources, uplink resources, and flexible resources respectively; or one time domain resource configuration is provided for downlink resources and flexible resources, and one time domain resource configuration is provided for uplink resources; or one time domain resource configuration is provided for uplink resources and flexible resources, and one time domain resource configuration is provided for downlink resources.

[0219] The time domain resource configuration includes at least one of the following: a multiplexing resource period, a multiplexing resource time slot set, a multiplexing resource symbol, and a multiplexing mode indication.

[0220] The multiplexed resource time slot set can be configured in any of the following ways:

[0221] Mode 1: Indicate the time slot set in a bitmap manner. One bit corresponds to a time slot in the multiplexing resource period, and the bit value is used to indicate whether the corresponding time slot is a multiplexing resource. For example, if the bit value is 1, the time slot is a multiplexing resource, otherwise it is not a multiplexing resource;

[0222] Mode 2: Indicates the index set of multiplexed time slots in the multiplexed resource period.

[0223] Mode 3: Indicates the start time slot index and the number of time slots that can be multiplexed within the multiplexed resource period.

[0224] Mode 4: Indicate the start time slot index and the end time slot index that can be multiplexed within the multiplexing resource period (ie, the time slots corresponding to the start time slot index and the end time slot index and all the time slot indexes between them are available).

[0225] In one embodiment, the multiplexed resource time slot set is only valid for the corresponding time resource type. For example, the time domain resource configuration provided for downlink resources and flexible resources is only valid for downlink resources and flexible resources, that is, for uplink resources, the available time slots indicated by the multiplexed resource time slot set configuration are ignored.

[0226] The multiplexed resource symbol configuration may provide the reusability of symbols in the multiplexed time slots in the multiplexed resource time slot set, or may provide the reusability of symbols within the multiplexed resource period. The multiplexed resource symbol may be configured in any of the following ways:

[0227] Mode 1: Configure reusable symbols for each time slot separately. For example, the reusability of the symbol in the time slot is indicated as any one of the configurations in a specific configuration set according to the resource type of the symbol:

[0228] Mode 2: uniformly configure reusable symbols for all time slots. For example, the reusability of a symbol is indicated as any one of a specific configuration set according to the resource type of the symbol.

[0229] Resource types include: uplink (UL), downlink (DL), and flexible (F).

[0230] The specific configuration set consists of at least one of the following configurations: all symbols (i.e. All symbols) can be reused, only downlink symbols (i.e. Only DL symbols) can be reused, only uplink symbols (i.e. Only UL symbols) can be reused, only flexible symbols (i.e. Only flexible symbols) can be reused, only downlink and flexible symbols (i.e. Only DL and flexible symbols) can be reused, only uplink and flexible symbols (i.e. Only UL and flexible symbols) can be reused, only downlink and uplink symbols (i.e. Only DL and UL symbols) can be reused, and all symbols (i.e. All symbols) cannot be reused.

[0231] In one embodiment, symbols that are not indicated as reusable for a particular configuration set are not reusable.

[0232] In one embodiment, for a specific configuration set, whether symbols that are not indicated as being reusable is reusable is determined based on resource usage of the IAB node MT.

[0233] Each configuration in a specific configuration set corresponds to an index, and the index is used to indicate which resource type symbol is a reusable symbol.

[0234] In one embodiment, for providing time domain resource configuration according to time resource type, it is not necessary to provide multiplexed resource symbol configuration.

[0235] The multiplexing mode indication is used to indicate the multiplexing mode adopted by the multiplexing resource. The multiplexing mode includes at least one of the following: FDM, SDM.

[0236] The time domain resource configuration is used to configure the time domain resources that can potentially be sent or received simultaneously when the sub-link and the parent link of the IAB node adopt the FDM or SDM mode.

[0237] Example 4: This example shows a semi-static time domain resource configuration of period + offset (i.e., offset) + duration (i.e., duration):

[0238] This example shows how to configure the time domain resources of the IAB node DU.

[0239] The CU provides time domain resource configuration for each cell or each carrier or at least one time resource type of the IAB node DU.

[0240] In one embodiment, the CU provides a time domain resource configuration for each cell of the IAB node DU, for example, all carriers of the cell use the same time domain resource configuration.

[0241] In one embodiment, the CU provides time domain resource configuration for each carrier of each cell of the IAB node DU.

[0242] In one embodiment, the CU provides time domain resource configuration for each carrier.

[0243] In one embodiment, the CU provides time domain resource configuration for each carrier according to the time resource type. For example, different time resource types correspond to different time domain resource configurations.

[0244] The specific examples of the above optional items are similar to Example 3 in Embodiment 1 and will not be repeated here.

[0245] In one embodiment, the time domain resource configuration includes at least one sub-time domain resource configuration.

[0246] The sub-time domain resource configuration includes at least one of the following: a multiplexing resource period, a multiplexing resource offset, a multiplexing resource duration, and a multiplexing mode indication.

[0247] In one embodiment, the multiplexed resource offset indicates the starting position of the multiplexed resource within the multiplexed resource period;

[0248] In one embodiment, the unit of the multiplexed resource offset is any one of the following: a subframe, a time slot, or an orthogonal frequency division multiplex (OFDM) symbol.

[0249] In one embodiment, the unit of the multiplexed resource duration is any one of the following: a subframe, a time slot, or an OFDM symbol.

[0250] In one embodiment, for each cell or carrier or resource type of the IAB node DU, the multiplexed resources are the union of resources provided by all sub-time domain resource configurations of the cell.

[0251] The multiplexing mode indication is used to indicate the multiplexing mode adopted by the multiplexing resource. The multiplexing mode includes at least one of the following: FDM, SDM.

[0252] For example, according to the sub-time domain resource configuration parameter, the radio frame n where the multiplexing resource is located f and start time slot satisfy in is the number of time slots per radio frame when the subcarrier spacing is configured as μ, is the timeslot number in the radio frame when the subcarrier spacing is configured as μ, o s is the multiplexing resource offset, k s is the multiplexing resource period. That is, the multiplexing resource is wireless frame n f China-Israel is the continuous T of the starting time slot s Time slots. s Duration of reused resources.

[0253] In this example, the unit of the multiplexing resource period and the multiplexing resource offset is the time slot when the subcarrier spacing is configured as μ. If the unit is not the time slot, it can be converted into the time slot when the subcarrier spacing is configured as μ.

[0254] In the above example, the unit of multiplexing resource offset is time slot. Similar formulas can be used for other units. The units of each parameter of sub-time domain resource configuration can be converted into a unified unit. The number of time slots per wireless frame is Also converted to uniform units.

[0255] Embodiment 2: In this embodiment, the parent node provides resource configuration to the IAB node. The parent node in this embodiment is the third node.

[0256] The parent node of the IAB node provides multiplexing resource configuration for the IAB node MT or DU:

[0257] In the frequency domain: 1) Indicated by a bitmap within the transmission bandwidth or bandwidth part (Bandwidth Part, BWP); 2) Indicated by RIV within the transmission bandwidth or BWP.

[0258] In the time domain, the reusable resource configuration can adopt: time slot granularity, time slot + symbol granularity, or configuration according to signal or channel type.

[0259] The first node receives at least one multiplexing resource configuration; the multiplexing resource configuration is at least one of the following: reference subcarrier spacing, frequency domain resource configuration, and time domain resource configuration.

[0260] In one embodiment, the frequency domain resource configuration may indicate available frequency resources in the following manner: using a bitmap to indicate available frequency units, wherein each bit corresponds to a frequency unit, the size of the bitmap is the total number of frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, and the bit value is used to indicate the availability of the corresponding frequency unit; or, indicating a set of available frequency unit indices in the frequency resources.

[0261] The frequency unit is any one of the following: a resource block, a resource block group, a subband, a subband group, a subcarrier, a subcarrier group, and a bandwidth / m as a group of frequency resources; wherein m is an integer greater than or equal to 1;

[0262] The frequency domain resource configuration is used for one of the following: indicating frequency resources available to the MT of the first node; or indicating frequency resources available to the DU of the first node;

[0263] The time domain resource configuration is used for one of the following: indicating a time domain resource that can be reused by an MT of the first node; or indicating a time domain resource that can be reused by a DU of the first node;

[0264] The at least one multiplexing resource configuration may be transmitted via RRC signaling or MAC CE.

[0265] Example 1: This example indicates the frequency resources available to the IAB node MT:

[0266] In one embodiment, the serving cell of the IAB node MT (or the parent node of the IAB node) provides frequency domain resource configuration for each carrier of the IAB nodeMT.

[0267] In one embodiment, the serving cell of the IAB node MT provides frequency domain resource configuration for each carrier according to the time resource type. For example, different time resource types correspond to different frequency domain resource configurations. The specific example is similar to Example 1 in Embodiment 1, and will not be repeated here.

[0268] The frequency domain resource configuration is used to indicate the frequency resources available to the IAB node MT.

[0269] The serving cell of the IAB node MT (or the parent node of the IAB node) indicates the available frequency resources of the IAB node MT in one of the following ways:

[0270] Method 1: Use a bitmap to indicate the available frequency units, where each bit corresponds to a frequency unit, the size of the bitmap is the bandwidth corresponding to the reference subcarrier spacing or the total number of frequency units contained in the BWP, and the bit value is used to indicate the availability of the corresponding frequency unit. For example, a bit value of 1 indicates that the corresponding frequency unit is available, and a bit value of 0 indicates that the corresponding frequency unit is unavailable.

[0271] Mode 2: Indicate the frequency unit position available to the IAB node MT. For example, indicate the starting frequency unit and the number of frequency units available to the IAB node MT within the bandwidth or BWP corresponding to the reference subcarrier spacing, for example, through a resource indication value; or indicate the starting frequency unit and the ending frequency unit available to the IAB node MT.

[0272] Mode 3: Indicates a set of available frequency unit indices within the bandwidth corresponding to the reference subcarrier spacing.

[0273] Mode 4: Use X bits in the bitmap (e.g., the least significant X bits, or the most significant X bits) to indicate the availability of the frequency unit. The size of the bitmap is a fixed value, and X is the total number of frequency units included in the bandwidth corresponding to the reference subcarrier spacing, or the total number of frequency units included in the bandwidth part (Bandwidth Part, BWP) corresponding to the reference subcarrier spacing.

[0274] The fixed value may be predefined or have a corresponding relationship with the bandwidth corresponding to the reference subcarrier spacing.

[0275] The frequency unit includes but is not limited to one of the following: RB, RBG, subband, subband group, subcarrier, subcarrier group, bandwidth / m is a group of frequency resources; where m is an integer greater than or equal to 1.

[0276] In one embodiment, the parent node provides one of the following: RBG size, subband size, m.

[0277] In one embodiment, the frequency resource related configuration with bandwidth / m as a group is similar to the above example and will not be repeated here.

[0278] In one embodiment, the reference subcarrier spacing is configured by a parent node or determined by default.

[0279] Among them, the default method is the same as the default method for determining the subcarrier spacing in Example 1 of Embodiment 1, and will not be repeated here.

[0280] Example 2: This example indicates the frequency resources available to the IAB node DU:

[0281] In one embodiment, the serving cell of the IAB node MT (or the parent node of the IAB node) provides frequency domain resource configuration for each carrier of the IAB node DU.

[0282] In one embodiment, frequency domain resource configuration is provided for each carrier of each cell of the IAB node DU.

[0283] In one embodiment, frequency domain resource configuration is provided for each carrier of the IAB node DU.

[0284] In one embodiment, frequency domain resource configuration is provided for each carrier of the IAB node DU according to the time resource type.

[0285] The frequency domain resource configuration is used to indicate the frequency resources available to the IAB node DU.

[0286] The specific examples of the above optional items are similar to Example 1 in Embodiment 1 and will not be repeated here.

[0287] The configuration method of the available frequency resources is similar to the method of indicating the available frequency resources to the IAB node MT, and will not be described in detail here.

[0288] Example 3, this example shows dynamic time domain resource configuration:

[0289] The serving cell of the IAB node MT (or the parent node of the IAB node) provides time domain resource configuration for the IAB node MT.

[0290] In one embodiment, for each serving cell, the IAB node MT is provided with time domain resource configuration.

[0291] In one embodiment, for each carrier of each serving cell, the IAB node MT is provided with time domain resource configuration.

[0292] In one embodiment, for each carrier, the IAB node MT is provided with a time domain resource configuration according to the time resource type. For example, for a TDD carrier, time domain resource configurations are provided for downlink resources, uplink resources, and flexible resources, respectively; or one time domain resource configuration is provided for downlink resources and flexible resources, and one time domain resource configuration is provided for uplink resources; or one time domain resource configuration is provided for uplink resources and flexible resources, and one time domain resource configuration is provided for downlink resources.

[0293] The time domain resource configuration mode is any of the following:

[0294] Mode 1 (time slot granularity): A set of time domain multiplexing resource combinations is provided through RRC signaling or MAC CE, where each combination is used to indicate whether each time slot in multiple consecutive time slots can be multiplexed, and each combination is uniquely identified by a combination index. The combination index is indicated by PDCCH, and the combination index in PDCCH indicates whether each time slot in multiple consecutive time slots starting from the time slot where the IAB node MT receives the PDCCH can be multiplexed.

[0295] Mode 2 (time slot + symbol granularity): A set of time domain multiplexing resource combinations is provided through RRC signaling or MAC CE, where each combination is used to indicate the reusability of symbols in each time slot in multiple consecutive time slots, and each combination is uniquely identified by a combination index. The combination index is indicated by PDCCH, and the combination index in PDCCH indicates the reusability of symbols in each time slot in multiple consecutive time slots starting from the time slot in which the IAB node MT receives the PDCCH. The reusability of symbols in each time slot is any one of the configurations in a specific configuration set.

[0296] The specific configuration set consists of at least one of the following configurations: all symbols are multiplexed, only downlink symbols are multiplexed, only uplink symbols are multiplexed, only zero active symbols are multiplexed, only downlink and flexible symbols are multiplexed, only uplink and flexible symbols are multiplexed, only downlink and uplink symbols are multiplexed, and all symbols are not multiplexed.

[0297] In one embodiment, for each configuration of a particular configuration set, symbols that are not indicated are not reusable.

[0298] In one embodiment, for each configuration of a specific configuration set, whether the unindicated symbol can be reused is determined according to resource usage of the IABnode MT.

[0299] Each configuration in a specific configuration set corresponds to an index, and the index is used to indicate which resource type symbol is a reusable symbol.

[0300] Mode 3: Indicate whether different types of signals or channels can be reused, for example, using RRC signaling or MAC CE to indicate a set of reused signals or channels. In one embodiment, for the physical downlink shared channel (PDSCH) / physical uplink shared channel (PUSCH) scheduled by PDCCH, 1 bit is used in the downlink control signaling (DCI) to indicate whether the resources corresponding to the PDSCH / PUSCH can be reused with the sublink of the IAB node. In one embodiment, this configuration can rewrite the configuration provided by RRC signaling or MAC CE.

[0301] Example 4: This example shows dynamic time domain resource configuration:

[0302] The IAB node DU assumes that all time domain resources are reusable resources except for the configured time domain unusable resources.

[0303] Example 5: This example shows semi-static time domain resource configuration:

[0304] The parent node of the IAB node can also provide time domain resource configuration for the IAB nodeMT by using methods similar to those in Example 3 and Example 4 in the first embodiment, by replacing the CU with the parent node of the IAB node and replacing the IAB node DU with the IAB node MT, which will not be repeated here.

[0305] Example 6: This example shows the time domain resource configuration:

[0306] The parent node of the IAB node provides at least one time domain resource configuration for the IAB node DU, wherein the time domain resource configuration is used to indicate the time domain resources that can be reused by the IAB node DU, that is, a time domain resource configuration is provided for each cell of the IAB node DU or each carrier of each cell or each carrier or at least one time resource type, that is, time domain resources that can be used for simultaneous transmission or simultaneous reception of the parent link and the child link of the IAB node are provided.

[0307] The indication method is similar to Example 3 and Example 5 of Example 2, which will not be repeated here. The only difference is that: Example 3 and Example 5 are indicated according to the service cell or carrier of the IAB node MT, that is, they are used to indicate the time domain resources that a service cell or carrier of the IAB node MT and one or more cells of the IAB node DU send or receive simultaneously; and Example 6 is indicated according to the cell or carrier of the IAB node DU, that is, they are used to indicate the time domain resources that a cell or carrier of the IAB node DU and one or more service cells of the IAB node MT send or receive simultaneously.

[0308] Embodiment 3: This embodiment shows that the IAB node reports resource configuration to the parent node:

[0309] The first node reports resource configuration information; the resource configuration information provides the multiplexing resource configuration of each cell or carrier or at least one time resource type of the first node, and the multiplexing resource configuration includes at least one of the following: reference subcarrier spacing, frequency domain resource configuration, and time domain resource configuration.

[0310] In one embodiment, the frequency domain resource configuration may indicate available frequency resources in the following manner: using a bitmap to indicate available frequency units, wherein each bit corresponds to a frequency unit, the size of the bitmap is the total number of frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, and the bit value is used to indicate the availability of the corresponding frequency unit; or, indicating the location of the available frequency unit, or indicating a set of available frequency unit indexes within the bandwidth corresponding to the reference subcarrier spacing.

[0311] The frequency unit is any one of the following: resource block, resource block group, subband, subband group, subcarrier, subcarrier group, bandwidth / m is a group of frequency resources; where m is an integer greater than or equal to 1.

[0312] The time domain resource configuration is used for one of the following: indicating a time domain resource that can be reused by each cell or carrier of the first node;

[0313] The multiplexing resource configuration may be transmitted via RRC signaling or MAC CE.

[0314] Example 1: This example indicates the frequency resources available to the IAB node DU:

[0315] The IAB node reports the frequency domain resource configuration of the IAB node DU to the parent node of the IAB node (or the serving cell of the IAB nodeMT).

[0316] In one embodiment, the frequency domain resource configuration of each carrier of each cell of the IAB node DU is reported.

[0317] In one embodiment, the frequency domain resource configuration of each carrier of the IAB node DU is reported.

[0318] In one embodiment, for each carrier, the frequency domain resource configuration of the IAB node DU is reported according to the time resource type.

[0319] The frequency domain resource configuration is used to indicate the frequency resources available to the IAB node DU.

[0320] The specific examples of the above optional items are similar to Example 1 in Embodiment 1 and will not be repeated here.

[0321] In one embodiment, the frequency domain resource configuration indicates frequency resources available to the IAB node DU.

[0322] The IAB node indicates the frequency domain resource configuration in one of the following ways:

[0323] Method 1: Use a bitmap to indicate the available frequency units, where each bit corresponds to a frequency unit, the size of the bitmap is the total number of frequency units contained in the bandwidth corresponding to the reference subcarrier spacing, and the bit value is used to indicate the availability of the corresponding frequency unit. For example, a bit value of 1 indicates that the corresponding frequency unit is available, and a bit value of 0 indicates that the corresponding frequency unit is unavailable.

[0324] Mode 2: Indicating the available frequency unit position. For example, indicating the starting frequency unit and the number of frequency units available to the IABnode DU within the bandwidth corresponding to the reference subcarrier spacing, for example, indicated by a resource indication value; or indicating the available starting frequency unit and ending frequency unit.

[0325] Mode 3: Indicates a set of available frequency unit indices within the bandwidth corresponding to the reference subcarrier spacing.

[0326] Mode 4: Use X bits in the bitmap (e.g., the least significant X bits, or the most significant X bits) to indicate the availability of the frequency unit, where the size of the bitmap is a fixed value, and X is the total number of frequency units contained in the bandwidth corresponding to the reference subcarrier spacing.

[0327] The fixed value may be predefined or have a corresponding relationship with the bandwidth corresponding to the reference subcarrier spacing.

[0328] The frequency unit includes but is not limited to one of the following: RB, RBG, subband, subband group, subcarrier, subcarrier group, bandwidth / m is a group of frequency resources; where m is an integer greater than or equal to 1.

[0329] In one embodiment, the IAB node reports one of the following: RBG size, subband size, m.

[0330] In one embodiment, the frequency resource related configuration with bandwidth / m as a group is similar to the above example and will not be repeated here.

[0331] Example 2: This example shows semi-static time domain resource configuration:

[0332] The IAB node reports the time domain resource configuration of the IAB node DU to the parent node of the IAB node (or the serving cell of the IAB nodeMT).

[0333] In one embodiment, the IAB node DU reports the time domain resource configuration of each carrier of each cell. For example, assuming that the cell adopts time division duplexing and configures one carrier, the time domain resource configuration of the carrier is reported. For another example, assuming that the cell adopts frequency division duplexing, the time domain resource configuration of the UL carrier and DL carrier of the cell is reported.

[0334] In one embodiment, the IAB node DU reports the time domain resource configuration of each carrier. For example, if the IAB node DU is configured with one carrier, the time domain resource configuration of the carrier is reported, and all cells using the carrier have the same time domain resource configuration. If the IAB node DU is configured with multiple carriers, the time domain resource configuration of each carrier is reported.

[0335] In one embodiment, the IAB node DU reports the time domain resource configuration for each carrier according to the time resource type. For example, different time resource types correspond to different time domain resource configurations.

[0336] The time domain resource configuration is similar to Example 3 and Example 4 in Embodiment 1 and will not be described in detail here.

[0337] In one embodiment, in all the above embodiments and examples, for each cell of the IAB node DU, the time domain resources provided by the time domain resource configuration are potentially reusable resources, that is, for each cell of the IAB node DU, whether the configured time domain resources can be used for the sublink and the parent link to send or receive simultaneously depends on the transmission direction of the sublink and the parent link. The sublink and the parent link have different transmission directions on the time resource (for example, one is uplink and the other is downlink), then the IAB node can send or receive simultaneously on the sublink and the parent link. If the sublink and the parent link have the same transmission direction (for example, both are uplink or both are downlink), the half-duplex IAB node cannot send or receive simultaneously on the sublink and the parent link. For example, for the sublink and the parent link, the time resources are uplink resources and downlink resources respectively, then the IAB node can receive simultaneously on the sublink and the parent link; for another example, for the sublink and the parent link, the time resources are downlink resources and uplink resources respectively, then the IAB node can send simultaneously on the sublink and the parent link.

[0338] In one embodiment, in all the above embodiments and examples, the second node (e.g., CU) or the third node (e.g., the parent node of the IAB node) needs to know the frequency position of the bandwidth corresponding to the reference subcarrier spacing of the IAB node. That is, the IAB node reports the starting frequency, the ending frequency, or the center frequency of the bandwidth corresponding to the reference subcarrier spacing (e.g., the starting frequency, the ending frequency, or the center frequency can be indicated in any of the following ways: reporting the frequency difference with point A, or reporting the absolute radio frequency channel number (Absolute Radio Frequency Channel Number, ARFCN)) to at least one of the second node and the third node. Point A is the common reference point of the resource grid.

[0339] In one embodiment, in all the above embodiments and examples, frequency domain resource configuration and time domain resource configuration may use different reference subcarrier spacings. For example, frequency domain resource configuration uses reference subcarrier spacing 1, and time domain resource configuration uses reference subcarrier spacing 2.

[0340] In one embodiment, the CU or the parent node provides a frequency domain resource attribute configuration or a first reference subcarrier spacing adopted by the frequency domain resource configuration;

[0341] In one embodiment, the CU or the parent node provides a second reference subcarrier spacing adopted by the time domain resource configuration;

[0342] In one embodiment, the IAB node reports a third reference subcarrier spacing adopted by the frequency domain resource configuration;

[0343] In one embodiment, the IAB node reports a fourth reference subcarrier spacing adopted by the time domain resource configuration.

[0344] The reference subcarrier spacing includes one or more of the following: a first reference subcarrier spacing; a second reference subcarrier spacing; a third reference subcarrier spacing; and a fourth reference subcarrier spacing.

[0345] In one embodiment, in all the above embodiments and examples, the time domain resource configuration is invalid for the time domain unavailable resources (ie, Not Available (NA) resources) of the first node.

[0346] In one embodiment, in all the above embodiments and examples, if no multiplexing mode indication is provided, the default multiplexing resources can be used for both FDM and SDM.

[0347] In an exemplary embodiment, the present application provides a resource configuration device. Figure 3 A structural schematic diagram of a resource configuration device provided in the present application, which is configured at a first communication node, as shown in Figure 3, and includes: an acquisition module 31, configured to acquire at least one multiplexing resource configuration information, wherein the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource; a transmission module 32, configured to perform data transmission based on the multiplexing resource configuration information.

[0348] The resource configuration device provided in this embodiment is used to implement the following Figure 1 The resource configuration method of the embodiment shown in the figure, the resource configuration device provided in this embodiment implements the principle and technical effect of Figure 1 The resource configuration method of the illustrated embodiment is similar and will not be described again here.

[0349] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. It should be noted that in order to make the description concise, only the differences from the above embodiment are described in the variant embodiment.

[0350] In one embodiment, the device further comprises a communication module configured to include one or more of the following:

[0351] Report expected reuse resource configuration information;

[0352] Obtain at least one multiplexing resource configuration information of a child node of the first communication node.

[0353] In one embodiment, the multiplexing resource configuration information includes one or more of the following: reference subcarrier spacing; frequency domain resource attribute configuration information; time domain resource configuration information; or, the multiplexing resource configuration information includes one or more of the following: reference subcarrier spacing; frequency domain resource configuration information; time domain resource configuration information.

[0354] In one embodiment, the frequency domain resource attribute configuration information is used to configure the frequency domain resource attributes of each frequency unit.

[0355] In one embodiment, the frequency domain resource attributes include one or more of the following: hard; soft; unavailable.

[0356] In one embodiment, when the frequency domain resource is configured as hard, the sub-link of the node corresponding to the frequency domain resource may use the frequency domain resource;

[0357] In the case where the frequency domain resource is configured as soft, whether the sublink of the node corresponding to the frequency domain resource can use the frequency domain resource is indicated by the parent node or the serving cell of the node;

[0358] When a frequency domain resource is configured as unavailable, a sub-link of a node corresponding to the frequency domain resource cannot use the frequency domain resource.

[0359] In one embodiment, when the frequency domain resources are configured as soft, the method includes one of the following:

[0360] Indicating the availability of each frequency unit of the frequency domain resource by a bitmap, wherein each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value, or has a corresponding relationship with the bandwidth corresponding to the reference subcarrier spacing, or is the total number of frequency units or soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing;

[0361] Indicating the availability of each frequency unit of the frequency domain resource by indicating the position of the available frequency unit;

[0362] Indicating the availability of each frequency unit of the frequency domain resources by indicating the index of the available frequency unit, the frequency unit not indicated is unavailable or the availability is determined according to the usage of the mobile terminal resources of the first communication node;

[0363] The availability of each frequency unit of the frequency domain resources is indicated by indicating an index of an unavailable frequency unit, and the unindicated frequency unit is available or the availability is determined according to the usage of the mobile terminal resources of the first communication node.

[0364] In one embodiment, the frequency domain resource configuration information indicates the available frequency domain resources in one of the following ways:

[0365] A bitmap, each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value or the total number of frequency units included in the bandwidth corresponding to the reference subcarrier spacing;

[0366] The location of available frequency units;

[0367] The index of the available frequency units.

[0368] In one embodiment, the frequency unit includes any one of the following: resource block; resource block group; subband; subband group; subcarrier; subcarrier group; frequency resource group, the number of frequency resource groups is the result of dividing the bandwidth by m rounded up, m is an integer greater than or equal to 1, when the result of dividing the bandwidth by m is an integer, the size of each frequency resource group is m resource blocks, when the result of dividing the bandwidth by m is not an integer, the size of one frequency resource group is the bandwidth modm, and the size of the remaining frequency resource groups is m, and mod is a modulo operation.

[0369] In one embodiment, the frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing; or,

[0370] The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing and space division multiplexing; or,

[0371] The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt all multiplexing modes.

[0372] In one embodiment, the time domain resource configuration information includes one or more of the following: a multiplexing resource period; a multiplexing resource time slot set; a multiplexing resource symbol; and a multiplexing mode.

[0373] In one embodiment, the multiplexed resource time slot set is indicated by one of the following methods: a bitmap, in which one bit corresponds to a time slot within a multiplexed resource period, and the bit value of the bitmap is used to indicate whether the corresponding time slot is a multiplexed resource; the index of the multiplexed time slot within the multiplexed resource period; the starting time slot index and the number of multiplexed time slots within the multiplexed resource period; the starting time slot index and the ending time slot index that can be multiplexed within the multiplexed resource period.

[0374] In one embodiment, the multiplexing resource symbol indicates the multiplexing availability of symbols in multiplexing time slots in the multiplexing resource time slot set; or, the multiplexing availability of symbols within a multiplexing resource period.

[0375] In one embodiment, the multiplexed resource symbols are configured in one of the following ways: configuring a multiplexed symbol for each time slot individually; configuring a multiplexed symbol for all time slots uniformly.

[0376] In one embodiment, symbols not included in the multiplexed resource symbols are not reusable; or the reusability of symbols not included in the multiplexed resource symbols is determined according to usage of mobile terminal resources of the first communication node.

[0377] In one embodiment, the time domain resource configuration information includes one or more sub-time domain resource configuration information, and the sub-time domain resource configuration information includes one or more of the following: multiplexing resource period; multiplexing resource offset; multiplexing resource duration; multiplexing mode.

[0378] In one embodiment, the unit of the multiplexing resource offset or the multiplexing resource duration is one of the following: a subframe; a time slot; an orthogonal frequency division multiplexing symbol.

[0379] In one embodiment, the multiplexing method includes one or more of the following: frequency division multiplexing; space division multiplexing.

[0380] In one embodiment, the time domain resource configuration information configures the time domain resources in one of the following ways:

[0381] A set of first time slot multiplexing resource combinations is provided through first indication information, each first time slot multiplexing resource combination indicates the multiplexing of each time slot in a plurality of consecutive time slots, each first time slot multiplexing resource combination is identified by a different first combination index, and the first combination index is indicated by second indication information, and the first combination index indicated by the second indication information indicates the multiplexing of each time slot in L1 consecutive time slots starting from the time slot in which the second indication information is received, where L1 is the number of time slots corresponding to the first time slot multiplexing resource combination identified by the first combination index;

[0382] A set of second time slot multiplexing resource combinations is provided through third indication information, each second time slot multiplexing resource combination indicates the reusability of symbols in each time slot in a plurality of consecutive time slots, each second time slot multiplexing resource combination is identified by a different second combination index, and the second combination index is indicated through fourth indication information, the second combination index indicated by the fourth indication information is used to indicate the reusability of each time slot in L2 consecutive time slots starting from the time slot in which the fourth indication information is received, where L2 is the number of time slots corresponding to the second time slot multiplexing resource combination identified by the second combination index;

[0383] The reusability of a signal or a channel indicates the reusability of a corresponding time slot resource.

[0384] In one embodiment, each multiplexing resource configuration information corresponds to a cell, a carrier or at least one resource type.

[0385] In one embodiment, the frequency domain resource configuration information is used to indicate one of the following: frequency resources available to the mobile terminal of the first communication node; frequency resources available to the distributed unit of the first communication node.

[0386] In one embodiment, the time domain resource configuration information is used to indicate one of the following: time domain resources that can be reused by mobile terminals of the first communication node; time domain resources that can be reused by distributed units of the first communication node.

[0387] In an exemplary embodiment, the present application provides a resource configuration device. Figure 4 A structural diagram of a resource configuration device provided in the present application, which is configured at a second communication node, and includes: a determination module 41, configured to determine at least one multiplexing resource configuration information, wherein the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource; and a sending module 42, configured to send the multiplexing resource configuration information.

[0388] The resource configuration device provided in this embodiment is used to implement the following Figure 2 The resource configuration method of the embodiment shown in the figure, the resource configuration device provided in this embodiment implements the principle and technical effect of Figure 2 The resource configuration method of the illustrated embodiment is similar and will not be described again here.

[0389] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. It should be noted that in order to make the description concise, only the differences from the above embodiment are described in the variant embodiment.

[0390] In one embodiment, the device further includes a transmission module configured to include one or more of the following:

[0391] Receiving desired multiplexing resource configuration information sent by the first communication node;

[0392] At least one multiplexing resource configuration information of a child node of the first communication node is determined and sent.

[0393] In one embodiment, the multiplexing resource configuration information includes one or more of the following: reference subcarrier spacing; frequency domain resource attribute configuration information; time domain resource configuration information; or, the multiplexing resource configuration information includes one or more of the following: reference subcarrier spacing; frequency domain resource configuration information; time domain resource configuration information.

[0394] In one embodiment, the frequency domain resource attribute configuration information is used to configure the frequency domain resource attributes of each frequency unit.

[0395] In one embodiment, the frequency domain resource attributes include one or more of the following: hard; soft; unavailable.

[0396] In one embodiment, the determination module 41 is configured to include one or more of the following:

[0397] The frequency domain resource attribute of the frequency domain resource that can be used by the sub-link of the node corresponding to the frequency domain resource is configured as hard;

[0398] The frequency domain resource attribute of the frequency domain resource that can be shared by the sub-link and the parent link of the node corresponding to the frequency domain resource is configured as soft;

[0399] The frequency domain resource attribute of the frequency domain resource that cannot be used by the sub-link of the node corresponding to the frequency domain resource is configured as unavailable.

[0400] In one embodiment, for a frequency resource configured as soft, availability is indicated in one of the following ways:

[0401] Indicating the availability of each frequency unit of the frequency domain resource by a bitmap, wherein each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value, or has a corresponding relationship with the bandwidth corresponding to the reference subcarrier spacing, or is the total number of frequency units or soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing;

[0402] Indicating the availability of each frequency unit of the frequency domain resource by indicating the position of the available frequency unit;

[0403] Indicating the availability of each frequency unit of the frequency domain resources by indicating the index of the available frequency unit, the frequency unit not indicated is unavailable or the availability is determined according to the usage of the mobile terminal resources of the first communication node;

[0404] The availability of each frequency unit of the frequency domain resources is indicated by indicating an index of an unavailable frequency unit, and the unindicated frequency unit is available or the availability is determined according to the usage of the mobile terminal resources of the first communication node.

[0405] In one embodiment, the frequency domain resource configuration information indicates the available frequency domain resources in one of the following ways:

[0406] A bitmap, each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value or the total number of frequency units included in the bandwidth corresponding to the reference subcarrier spacing;

[0407] The location of available frequency units;

[0408] The index of the available frequency units.

[0409] In one embodiment, the frequency unit includes any one of the following: resource block; resource block group; subband; subband group; subcarrier; subcarrier group; frequency resource group, the number of frequency resource groups is the result of dividing the bandwidth by m rounded up, m is an integer greater than or equal to 1, when the result of dividing the bandwidth by m is an integer, the size of each frequency resource group is m resource blocks, when the result of dividing the bandwidth by m is not an integer, the size of one frequency resource group is the bandwidth modm, and the size of the remaining frequency resource groups is m, and mod is a modulo operation.

[0410] In one embodiment, the frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing; or,

[0411] The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing and space division multiplexing; or,

[0412] The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt all multiplexing modes.

[0413] In one embodiment, the time domain resource configuration information includes one or more of the following: a multiplexing resource period; a multiplexing resource time slot set; a multiplexing resource symbol; and a multiplexing mode.

[0414] In one embodiment, the multiplexed resource time slot set is indicated by one of the following methods: a bitmap, in which one bit corresponds to a time slot within a multiplexed resource period, and the bit value of the bitmap is used to indicate whether the corresponding time slot is a multiplexed resource; the index of the multiplexed time slot within the multiplexed resource period; the starting time slot index and the number of multiplexed time slots within the multiplexed resource period; the starting time slot index and the ending time slot index that can be multiplexed within the multiplexed resource period.

[0415] In one embodiment, the multiplexing resource symbol indicates the multiplexing availability of symbols in multiplexing time slots in the multiplexing resource time slot set; or, the multiplexing availability of symbols within a multiplexing resource period.

[0416] In one embodiment, the multiplexed resource symbols are configured in one of the following ways: configuring a multiplexed symbol for each time slot individually; configuring a multiplexed symbol for all time slots uniformly.

[0417] In one embodiment, symbols not included in the multiplexed resource symbols are not reusable; or the reusability of symbols not included in the multiplexed resource symbols is determined according to usage of mobile terminal resources of the first communication node.

[0418] In one embodiment, the time domain resource configuration information includes one or more sub-time domain resource configuration information, and the sub-time domain resource configuration information includes one or more of the following: multiplexing resource period; multiplexing resource offset; multiplexing resource duration; multiplexing mode.

[0419] In one embodiment, the unit of the multiplexing resource offset or the multiplexing resource duration is one of the following: a subframe; a time slot; an orthogonal frequency division multiplexing symbol.

[0420] In one embodiment, the multiplexing method includes one or more of the following: frequency division multiplexing; space division multiplexing.

[0421] In one embodiment, the time domain resource configuration information configures the time domain resources in one of the following ways:

[0422] A set of first time slot multiplexing resource combinations is provided through first indication information, each first time slot multiplexing resource combination indicates the multiplexing of each time slot in a plurality of consecutive time slots, each first time slot multiplexing resource combination is identified by a different first combination index, and the first combination index is indicated by second indication information, and the first combination index indicated by the second indication information indicates the multiplexing of each time slot in L1 consecutive time slots starting from the time slot in which the second indication information is received, where L1 is the number of time slots corresponding to the first time slot multiplexing resource combination identified by the first combination index;

[0423] A set of second time slot multiplexing resource combinations is provided through third indication information, each second time slot multiplexing resource combination indicates the reusability of symbols in each time slot in a plurality of consecutive time slots, each second time slot multiplexing resource combination is identified by a different second combination index, and the second combination index is indicated through fourth indication information, the second combination index indicated by the fourth indication information is used to indicate the reusability of each time slot in L2 consecutive time slots starting from the time slot in which the fourth indication information is received, where L2 is the number of time slots corresponding to the second time slot multiplexing resource combination identified by the second combination index;

[0424] The reusability of a signal or a channel indicates the reusability of a corresponding time slot resource.

[0425] In one embodiment, each multiplexing resource configuration information corresponds to a cell, a carrier or at least one resource type.

[0426] In one embodiment, the frequency domain resource configuration information is used to indicate one of the following: frequency resources available to the mobile terminal of the first communication node; frequency resources available to the distributed unit of the first communication node.

[0427] In one embodiment, the time domain resource configuration information is used to indicate one of the following: time domain resources that can be reused by mobile terminals of the first communication node; time domain resources that can be reused by distributed units of the first communication node.

[0428] In an exemplary embodiment, the present application also provides a communication node, Figure 5 A schematic diagram of the structure of a communication node provided in this application. Figure 5 As shown, the communication node provided by the present application includes one or more processors 51 and a storage device 52; the processor 51 in the communication node can be one or more, Figure 5 A processor 51 is taken as an example; the storage device 52 is used to store one or more programs; the one or more programs are executed by the one or more processors 51, so that the one or more processors 51 implement the resource configuration method as described in the embodiment of the present application.

[0429] When the communication node is the first communication node, one or more processors 51 implement the Figure 1 When the communication node is a second communication node, one or more processors 51 implement the resource configuration method as described in the present application Figure 2 The resource configuration method described.

[0430] The communication node further comprises: a communication device 53 , an input device 54 and an output device 55 .

[0431] The processor 51, storage device 52, communication device 53, input device 54 and output device 55 in the communication node may be connected via a bus or other means. Figure 5 The example of connecting through bus is taken in the following.

[0432] The input device 54 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the communication node. The output device 55 may include a display device such as a display screen.

[0433] The communication device 53 may include a receiver and a transmitter. The communication device 53 is configured to perform information transmission and reception communication according to the control of the processor 51. The information includes but is not limited to multiplexing resource configuration information.

[0434] The storage device 52 is a computer-readable storage medium that can be configured to store software programs, computer executable programs, and modules, such as the present application. Figure 1 The program instructions / modules corresponding to the resource configuration method shown (for example, the acquisition module 31 and the transmission module 32 in the resource configuration device); Figure 2The program instructions / modules corresponding to the resource configuration method shown (for example, the determination module 41 and the sending module 42 in the resource configuration device). The storage device 52 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the communication node, etc. In addition, the storage device 52 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 52 may further include a memory remotely arranged relative to the processor 51, and these remote memories may be connected to the communication node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0435] The embodiment of the present application also provides a storage medium, the storage medium stores a computer program, and the computer program, when executed by a processor, implements any resource configuration method described in the embodiment of the present application. Such as the resource configuration method applied to the first communication node and the resource configuration method applied to the second communication node, wherein the method applied to the first communication node includes: obtaining at least one multiplexing resource configuration information, the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource;

[0436] Data transmission is performed based on the multiplexing resource configuration information.

[0437] The resource configuration method applied to the second communication node includes: determining at least one multiplexing resource configuration information, wherein the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource;

[0438] The multiplexing resource configuration information is sent.

[0439] The computer storage medium of the embodiment of the present application can adopt any combination of one or more computer-readable media. Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable storage media can be, for example, - but not limited to - electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above. More specific examples (non-exhaustive lists) of computer-readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memories (Random Access Memory, RAM), read-only memories (Read Only Memory, ROM), erasable programmable read-only memories (Erasable Programmable Read Only Memory, EPROM), flash memory, optical fibers, portable CD-ROMs, optical storage devices, magnetic storage devices, or any suitable combination of the above. Computer-readable storage media can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0440] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to: electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0441] The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the above.

[0442] Computer program code for performing the operation of the present application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (e.g., using an Internet service provider to connect through the Internet).

[0443] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0444] In general, various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can be executed by a controller, microprocessor or other computing device, although the present application is not limited thereto.

[0445] Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0446] The block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions. A computer program may be stored in a memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory devices and systems (digital versatile discs (DVD) or compact disks (CD)), etc. Computer-readable media may include non-transient storage media. A data processor may be of any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FGPAs) and a processor based on a multi-core processor architecture.

[0447] When FDM / SDM multiplexing is performed between the IAB node MT and the DU, the present application also provides a method for determining a conversion position, including:

[0448] In the case where the parent link and the child link of the IAB node are transmitted simultaneously, the switching positions of the mobile terminal and the distributed unit of the IAB node are determined based on the first or last symbol.

[0449] In one embodiment, the switching position of the mobile terminal and the distributed unit of the IAB node is determined based on the first or last symbol, including one of the following:

[0450] In the case where the IAB node receives simultaneously on the parent link and the child link, the switching position of the IAB node mobile terminal to the distributed unit is the end position of the last uplink symbol of the uplink resource on the hard resource of the IAB node distributed unit;

[0451] In the case where the IAB node receives simultaneously on the parent link and the child link, the switching position of the IAB node mobile terminal to the distributed unit is the end position of the first symbol after the last uplink symbol of the uplink resource on the hard resource of the IAB node distributed unit;

[0452] In the case where the IAB node transmits simultaneously on the parent link and the child link, the switching position of the IAB node mobile terminal to the distributed unit is the end position of the last downlink symbol of the downlink resource on the hard resource of the IAB node distributed unit;

[0453] In the case where the IAB node transmits simultaneously on the parent link and the child link, the switching position of the IAB node mobile terminal to the distributed unit is the end position of the first symbol after the last downlink symbol of the downlink resource on the hard resource of the IAB node distributed unit;

[0454] In the case where the IAB node receives simultaneously on the parent link and the child link, the switching position of the IAB node distributed unit to the mobile terminal is the starting position of the first uplink symbol of the uplink resource on the hard resource of the IAB node distributed unit;

[0455] In the case where the IAB node receives simultaneously on the parent link and the child link, the switching position of the IAB node distributed unit to the mobile terminal is the starting position of the first symbol before the first uplink symbol of the uplink resource on the hard resource of the IAB node distributed unit;

[0456] In the case where the IAB node transmits simultaneously on the parent link and the child link, the switching position of the IAB node distributed unit to the mobile terminal is the starting position of the first downlink symbol of the downlink resource on the hard resource of the IAB node distributed unit;

[0457] When the IAB node transmits simultaneously on the parent link and the child link, the switching position of the IAB node distributed unit to the mobile terminal is the starting position of the first symbol before the first downlink symbol of the downlink resource on the hard resource of the IAB node distributed unit.

[0458] When FDM / SDM multiplexing is performed between the IAB node MT and the DU, when the IAB node MT / DU is a flexible symbol at the conversion position, the present application further provides a method for determining a protection symbol, including:

[0459] In the case where at least one of the mobile terminal and the distributed unit of the IAB node at the switching location is a flexible symbol, the number of protection symbols is one of the following: a default value; a configurable value; a value determined according to the switching type.

[0460] In one embodiment, when the distributed unit of the IAB node at the conversion position is a flexible symbol, the number of guard symbols is the minimum or maximum value of the number of guard symbols corresponding to the conversion type when the distributed unit of the IAB node at the conversion position is for downlink transmission and uplink transmission;

[0461] In the case where at least one of the distributed unit and the mobile terminal of the IAB node at the conversion position is a flexible symbol, the number of protection symbols is the minimum value or maximum value of the number of protection symbols corresponding to the conversion type of the IAB node;

[0462] In the case where the mobile terminal of the IAB node at the transition position is a flexible symbol, the number of guard symbols is the minimum or maximum value of the number of guard symbols corresponding to the transition type when the mobile terminal of the IAB node at the transition position is a downlink transmission and an uplink transmission;

[0463] In the case where at least one of the distributed unit of the IAB node and the mobile terminal at the switching position is a flexible symbol, the number of guard symbols is the minimum or maximum number of guard symbols of the switching type corresponding to the same switching direction.

[0464] Embodiment 4

[0465] This embodiment shows the determination of the transmission switching position and the number of switching symbols between the MT and the DU.

[0466] The IAB node has dual identities as a terminal (MT) and a base station (DU), and different identities have their own transmit and receive timings. This means that although the MT and DU of the IAB node use different symbols in the time domain, there may be overlap in the time domain. Especially under the limitation of half-duplex, the MT and DU of the IAB node may require transmit and receive conversion time or transmit and receive conversion time. These problems may cause conflicts in the resources used by the MT and DU of the IAB node.

[0467] In the related art, there are 8 possible conversion types between the IAB node MT and the DU, including 4 conversion types from MT to DU (MT transmission (Transport, Tx) / reception (Receive, Rx) to DU Tx / Rx, i.e., MT Tx to DU Tx, MT Tx to DU Rx, MT Rx to DU Tx, MT Rx to DU Rx), and 4 conversion types from DU to MT (DU Tx / Rx to MT Tx / Rx, i.e., DU Tx to MT Tx, DU Tx to MT Rx, DU Rx to MT Tx, DU Rx to MT Rx), the IAB node provides its parent node (or the serving cell of the IAB node MT) with the number of symbols (i.e., the number of protection symbols) that the parent node is expected not to use at each conversion position, and the parent node provides the IAB node with the number of protection symbols that it can provide at each conversion position. To ensure that the parent link and child link resources of the IAB node do not conflict, the IAB node and its parent node need to have the same understanding of the conversion position and conversion type.

[0468] For IAB node DU, its time resources include 7 types: hard (i.e. Hard) DL, F, UL, soft (i.e. Soft) DL, soft F, soft UL, and unavailable. Among them, on hard resources (including DL, UL, F), DU can directly schedule its sub-link without considering the resource allocation of MT. NA resources are DU unavailable resources. For DU, the availability of soft resources (including DL, UL, F) can be determined by parent node indication or MT usage. In addition, the cell-level signal or channel of IAB node DU can be transmitted on NA resources or soft resources (for example, PDCCH of synchronization channel block and SIB1 can be sent, PRACH can be received, etc.). At this time, the NA resources or soft resources for transmitting cell-level signals or channels are equivalent to hard resources (for simplicity of description, recorded as equivalent hard resources).

[0469] Example 1

[0470] For an IAB node that supports FDM / SDM, if the transmission direction meets the conditions, the IAB node can send on the parent link and the sub-link at the same time, or receive on the parent link and the sub-link at the same time. That is to say, on the Hard resources of the IAB node DU cell, the parent node of the IAB node can schedule the IAB node MT (corresponding to the parent link). Therefore, on the Hard resources of the IABnode DU cell, when the IAB node receives or sends on the parent link and the sub-link at the same time, when the transmission direction of the sub-link of the IAB node DU is switched, the transmission switch between the IAB node MT and the IAB node DU will also occur. To ensure that the IAB node and the parent node have a consistent understanding of the switch position, the switch position can be determined as follows.

[0471] For the case where the IAB node receives on the parent link and the child link at the same time, the possible transition positions from the IAB node MT to the IAB node DU are: the end position of the last UL symbol of the UL resources of the IAB node DU on the Hard resources of the IAB node DU cell; or, the end position of the first symbol after the last UL symbol of the UL resources of the IAB node DU on the Hard resources of the IAB node DU cell.

[0472] Figure 6 A schematic diagram of a conversion position provided in this application. Figure 6 The conversion position may be the end position of the last UL symbol of the UL resource of the IAB node DU on the Hard resource of the IAB nodeDU cell.

[0473] For the case where the IAB node transmits on the parent link and the child link simultaneously, the possible transition positions from the IAB node MT to the IAB node DU are: the end position of the last DL symbol of the DL resources of the IAB node DU on the Hard resources of the IAB node DU cell; or, the end position of the first symbol after the last DL symbol of the DL resources of the IAB node DU on the Hard resources of the IAB node DU cell.

[0474] Figure 7 This is a schematic diagram of another conversion position provided by the present application. Figure 7 The conversion position may be the end position of the last DL symbol of the DL resources of the IAB node DU on the Hard resources of the IAB node DU cell.

[0475] For the case where the IAB node receives on the parent link and the child link at the same time, the possible transition positions from the IAB node DU to the IAB node MT are: the starting position of the first UL symbol of the UL resources of the IAB node DU on the Hard resources of the IAB node DU cell; or, the starting position of the first symbol before the first UL symbol of the UL resources of the IAB node DU on the Hard resources of the IAB node DU cell.

[0476] Figure 8 For another schematic diagram of the conversion position provided for this application, see Figure 8 The conversion position may be: the starting position of the first UL symbol of the UL resource of the IAB node DU on the Hard resource of the IABnode DU cell.

[0477] For the case where the IAB node transmits on the parent link and the child link simultaneously, the possible transition positions from IAB node DU to IAB node MT are: the starting position of the first DL symbol of the DL resources of the IAB node DU on the hard resources of the IAB node DU cell; or, the starting position of the first symbol before the first DL symbol of the DL resources of the IAB node DU on the Hard resources of the IAB node DU cell.

[0478] Example 2

[0479] For the flexible symbols configured in the IAB node DU cell at the transition position, the parent node of the IAB node may not be able to determine the transmission direction (Rx or Tx) of the IAB node DU. Therefore, it is necessary to consider how to determine the number of protection symbols provided by the parent node in this case.

[0480] In one embodiment, a method for determining the number of protection symbols provided by a parent node includes:

[0481] Method 1: When the IAB node DU at the conversion position is a flexible symbol, the number of protection symbols is determined to be the minimum or maximum value of the number of protection symbols corresponding to the two conversions when the IAB node DU at the conversion position is UL and DL. In one embodiment, taking the conversion from MT to DU and taking the minimum value as an example, assuming that the IAB node MT at the conversion position is DL, the number of protection symbols corresponding to the conversion from MT DL Rx to DU DL Tx is X1, and the number of protection symbols corresponding to the conversion from MT DL Rx to DU UL Rx is X2, then the number of protection symbols corresponding to the conversion from MT DL Rx to DU Flexible is determined to be min{X1, X2}, that is, the minimum value of X1 and X2.

[0482] Method 2: When the IAB node DU at the transition position is a flexible symbol, the number of protection symbols is determined to be a configurable value or a default value. For example, when the IAB node DU at the transition position is a flexible symbol, the IAB node assumes that the number of protection symbols provided by the parent node is 0.

[0483] Method 3: When the IAB node DU is a flexible symbol at the conversion position, the number of protection symbols is determined to be the minimum or maximum value of the number of protection symbols corresponding to the 8 conversions of the IAB node. For example, assuming that the number of protection symbols corresponding to the 8 conversions is Y1, ..., Y8, the IAB node assumes the min{Y1, ..., Y8} of the number of protection symbols corresponding to the MT to DU flexibility.

[0484] Method 4: When the IAB node MT at the transition position is a flexible symbol, the number of guard symbols is determined to be the minimum or maximum value of the number of guard symbols corresponding to two transitions when the IAB node MT at the transition position is UL and DL.

[0485] Method 5: When the IAB node MT at the switching position is a flexible symbol, the number of protection symbols is determined to be a configurable value or a default value.

[0486] Method 6: When the IAB node MT at the conversion position is a flexible symbol, the number of protection symbols is determined to be the minimum or maximum value of the number of protection symbols corresponding to the eight conversions of the IAB node.

[0487] Method 7: When at least one of the IAB node MT and the IAB node DU is a flexible symbol at the transition position, the number of guard symbols is determined to be the minimum or maximum value of the number of guard symbols corresponding to the eight transitions of the IAB node.

[0488] Method 8: When at least one of the IAB node MT and the IAB node DU is a flexible symbol at the switching position, the number of protection symbols is determined to be a configurable value or a default value.

[0489] Method 9: When at least one of the IAB node MT and the IAB node DU is a flexible symbol at the conversion position, the number of protection symbols is determined to be the minimum or maximum value of the number of protection symbols of the four conversions corresponding to the same conversion direction. For example, IABnode assumes that the number of protection symbols corresponding to the flexible MT DL Rx to DU is the minimum value of the number of protection symbols corresponding to the four conversions from MT to DU.

[0490] Mode 10: When the parent node does not provide the number of guard symbols corresponding to the conversion between the MT and the DU of the IAB node, the IAB node assumes that the number of guard symbols corresponding to the conversion is a default value. In one embodiment, the conversion is at least one of the following: MT DL to DU DL, MT DL to DU UL, MT DL to DU Flexible, MT UL to DU DL, MT UL to DU UL, MT UL to DU Flexible, MT Flexible to DU DL, MT Flexible to DU UL, MT Flexible to DU Flexible, DU DL to MT DL, DU DL to MTUL, DU DL to MT Flexible, DU UL to MT DL, DU UL to MT UL, DU UL to MT Flexible, DU Flexible to MT DL, DU Flexible to MT UL, DU Flexible to MT Flexible.

[0491] Mode 11: When carriers of multiple serving cells of the IAB node MT belong to the same frequency band or overlap, the IAB node expects that the number of protection symbols provided by these serving cells is the same.

[0492] Mode 12: When at least one of the IAB node MT and the DU at the transition position is a flexible symbol, the DU assumes that the parent node determines the number of guard symbols according to the DL symbol usage of the DU at the transition position; or, the DU assumes resource usage determined according to hard DL.

[0493] In one embodiment, the protected symbols refer to symbols that cannot be used by the IAB node MT.

[0494] In one embodiment, the default value is 0.

[0495] In one embodiment, the default value is a predefined positive integer.

[0496] The above methods can be combined if there is no conflict.

[0497] It is worth noting that in this embodiment and all examples, hard resources, soft resources, and NA resources all refer to the time domain resources of the DU of the IABnode. Hard resources include configured hard resources and equivalent hard resources (for example, when a cell-specific signal is transmitted on a soft or NA resource, the soft or NA resource is an equivalent hard resource).

[0498] It should be noted that, in the definition of conversion types between IAB node MT and DU in the above embodiments and examples, MT DL is equivalent to MT Rx, MT UL is equivalent to MT Tx, DU DL is equivalent to DU Tx, and DU UL is equivalent to DU Rx.

[0499] It is worth noting that in all the above embodiments and examples, IAB node is only an example, and the above solution is also applicable to other nodes, for example, relay nodes, base stations and other types of wireless communication devices. The corresponding solution can be obtained by replacing IABnode with the corresponding device.

[0500] By way of exemplary and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present application. Therefore, the proper scope of the present application will be determined according to the claims.

Claims

1. A resource configuration method, characterized in that: Applied to a first communication node, comprising: Acquire at least one multiplexing resource configuration information, the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource; the multiplexing resource configuration information includes time domain resource configuration information; the time domain resource configuration information includes multiplexing resource symbols; symbols not included in the multiplexing resource symbols are not reusable; or the reusability of symbols not included in the multiplexing resource symbols is determined according to the usage of the mobile terminal resources of the first communication node; Data transmission is performed based on the multiplexing resource configuration information.

2. The method according to claim 1, characterized in that Also includes one or more of the following: Report expected reuse resource configuration information; Obtain at least one multiplexing resource configuration information of a child node of the first communication node.

3. The method according to claim 1 or 2, characterized in that: The multiplexing resource configuration information also includes one or more of the following: reference subcarrier spacing; frequency domain resource attribute configuration information; or, the multiplexing resource configuration information also includes one or more of the following: reference subcarrier spacing; frequency domain resource configuration information.

4. The method according to claim 3, characterized in that The frequency domain resource attribute configuration information is used to configure the frequency domain resource attributes of each frequency unit.

5. The method according to claim 4, characterized in that Frequency domain resource attributes include one or more of the following: hard; soft; unavailable.

6. The method according to claim 5, characterized in that In the case where the frequency domain resource is configured as hard, the sublink of the node corresponding to the frequency domain resource may use the frequency domain resource; In the case where the frequency domain resources are configured as soft, whether the sublink of the node corresponding to the frequency domain resources can use the frequency domain resources is indicated by the parent node or the serving cell of the node; When a frequency domain resource is configured as unavailable, a sub-link of a node corresponding to the frequency domain resource cannot use the frequency domain resource.

7. The method according to claim 5, characterized in that When the frequency domain resources are configured as soft, it includes one of the following: Indicating the availability of each frequency unit of the frequency domain resource by a bitmap, wherein each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value, or has a corresponding relationship with the bandwidth corresponding to the reference subcarrier spacing, or is the total number of frequency units or soft frequency units contained in the bandwidth corresponding to the reference subcarrier spacing; Indicating the availability of each frequency unit of the frequency domain resource by indicating the position of the available frequency unit; Indicating the availability of each frequency unit of the frequency domain resources by indicating the index of the available frequency unit, the frequency unit not indicated is unavailable or the availability is determined according to the usage of the mobile terminal resources of the first communication node; The availability of each frequency unit of the frequency domain resources is indicated by indicating an index of an unavailable frequency unit, and the unindicated frequency unit is available or the availability is determined according to the usage of the mobile terminal resources of the first communication node.

8. The method according to claim 3, characterized in that The frequency domain resource configuration information indicates the available frequency domain resources in one of the following ways: A bitmap, each bit in the bitmap corresponds to a frequency unit, and the size of the bitmap is a fixed value or the total number of frequency units included in the bandwidth corresponding to the reference subcarrier spacing; The location of available frequency units; The index of the available frequency units.

9. The method according to claim 8, characterized in that The frequency unit includes any one of the following: resource block; resource block group; subband; subband group; subcarrier; subcarrier group; frequency resource group, and the number of frequency resource groups is the result of dividing the bandwidth by m rounded up, where m is an integer greater than or equal to 1. When the result of dividing the bandwidth by m is an integer, the size of each frequency resource group is m resource blocks. When the result of dividing the bandwidth by m is not an integer, the size of one frequency resource group is the bandwidth mod m, and the sizes of the remaining frequency resource groups are m, and mod is a modulo operation.

10. The method according to claim 3, characterized in that The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing; or, The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt frequency division multiplexing and space division multiplexing; or, The frequency domain resource attribute configuration information or the frequency domain resource configuration information is valid when the parent link and the child link of the node adopt all multiplexing modes.

11. The method according to claim 3, characterized in that The time domain resource configuration information also includes one or more of the following: a multiplexing resource period; a multiplexing resource time slot set; and a multiplexing mode.

12. The method according to claim 11, characterized in that The multiplexed resource time slot set is indicated in one of the following ways: a bitmap, in which one bit corresponds to a time slot within a multiplexed resource period, and the bit value of the bitmap is used to indicate whether the corresponding time slot is a multiplexed resource; the index of the multiplexed time slot within the multiplexed resource period; the starting time slot index and the number of multiplexed time slots within the multiplexed resource period; the starting time slot index and the ending time slot index that can be multiplexed within the multiplexed resource period.

13. The method according to claim 11, characterized in that The multiplexing resource symbol indicates the multiplexing availability of symbols in multiplexing time slots in a multiplexing resource time slot set; or, the multiplexing availability of symbols within a multiplexing resource period.

14. The method according to claim 11, characterized in that The multiplexed resource symbols are configured in one of the following ways: configuring a multiplexed symbol for each time slot individually; configuring a multiplexed symbol for all time slots uniformly.

15. The method according to claim 3, characterized in that The time domain resource configuration information includes one or more sub-time domain resource configuration information, and the sub-time domain resource configuration information includes one or more of the following: multiplexing resource period; multiplexing resource offset; multiplexing resource duration; multiplexing mode.

16. The method according to claim 3, characterized in that Time domain resource configuration information configures time domain resources in one of the following ways: A set of first time slot multiplexing resource combinations is provided through first indication information, each first time slot multiplexing resource combination indicates the multiplexing of each time slot in a plurality of consecutive time slots, each first time slot multiplexing resource combination is identified by a different first combination index, and the first combination index is indicated by second indication information, and the first combination index indicated by the second indication information indicates the multiplexing of each time slot in L1 consecutive time slots starting from the time slot in which the second indication information is received, where L1 is the number of time slots corresponding to the first time slot multiplexing resource combination identified by the first combination index; A set of second time slot multiplexing resource combinations is provided through third indication information, each second time slot multiplexing resource combination indicates the reusability of symbols in each time slot in a plurality of consecutive time slots, each second time slot multiplexing resource combination is identified by a different second combination index, and the second combination index is indicated through fourth indication information, the second combination index indicated by the fourth indication information is used to indicate the reusability of each time slot in L2 consecutive time slots starting from the time slot in which the fourth indication information is received, where L2 is the number of time slots corresponding to the second time slot multiplexing resource combination identified by the second combination index; The reusability of a signal or a channel indicates the reusability of a corresponding time slot resource.

17. The method according to claim 1 or 2, characterized in that: Each piece of multiplexing resource configuration information corresponds to a cell, a carrier or at least one resource type.

18. The method according to claim 3, characterized in that The frequency domain resource configuration information is used to indicate one of the following: frequency resources available to the mobile terminal of the first communication node; frequency resources available to the distributed unit of the first communication node.

19. The method according to claim 3, characterized in that The time domain resource configuration information is used to indicate one of the following: time domain resources that can be reused by mobile terminals of the first communication node; time domain resources that can be reused by distributed units of the first communication node.

20. A resource configuration method, applied to a second communication node, characterized in that: include: Determine at least one multiplexing resource configuration information, the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource; the multiplexing resource configuration information includes time domain resource configuration information; the time domain resource configuration information includes multiplexing resource symbols; symbols not included in the multiplexing resource symbols are not reusable; or the reusability of symbols not included in the multiplexing resource symbols is determined according to the usage of the mobile terminal resources of the first communication node; The multiplexing resource configuration information is sent.

21. A resource allocation device, characterized in that: Configured at the first communication node, comprising: An acquisition module is configured to acquire at least one multiplexing resource configuration information, wherein the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource; the multiplexing resource configuration information includes time domain resource configuration information; the time domain resource configuration information includes multiplexing resource symbols; symbols not included in the multiplexing resource symbols are not reusable; or the reusability of symbols not included in the multiplexing resource symbols is determined according to the usage of the mobile terminal resources of the first communication node; The transmission module is configured to perform data transmission based on the multiplexing resource configuration information.

22. A resource allocation device, characterized in that: Configured at the second communication node, comprising: A determination module, configured to determine at least one multiplexing resource configuration information, wherein the multiplexing resource configuration information is used to indicate the configuration of the multiplexing resource; the multiplexing resource configuration information includes time domain resource configuration information; the time domain resource configuration information includes multiplexing resource symbols; symbols not included in the multiplexing resource symbols are not reusable; or the reusability of symbols not included in the multiplexing resource symbols is determined according to the usage of the mobile terminal resources of the first communication node; A sending module is configured to send the multiplexing resource configuration information.

23. A communication node, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 20.

24. A storage medium, characterized in that The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 20 is implemented.

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