TW202142035A - Multiplexing operation method, apparatus, node, and storage medium - Google Patents

Abstract

Disclosed is a multiplexing operation method, device, node and storage medium. The multiplexing operation method comprises: a first node indicating a first operation combination to a second node; wherein, the first operation combination one of the followings: a multiplex operation combination, a combination of multiplex operations and frame structure, and a combination of multiplex operations and availability.

Description

Multiplex operation method, device, node and storage medium

This specification relates to the field of wireless communication technology, such as a multiplexing operation method, device, node, and storage medium.

Integrated access and backhaul (Integrated Access Backhaul, IAB) nodes include mobile terminal (Mobile Termination, MT) units and distributed units (Distributed Unit, DU). The IAB node is connected to the upper-level node through the MT (or IAB-MT) unit. The upper-level node can be called the parent node. The link between the IAB-MT unit and the parent node is the backhaul link . The IAB node is connected to the next-level node or terminal through the DU (or IAB-DU) node, and the link of the connection is the access link. IAB nodes can perform IAB-MT and IAB-DU sending and receiving operations at the same time according to their different capabilities. It can support a variety of multiplexing operation combinations, such as IAB-MT and IAB-DU sending operations, IAB-MT and IAB-DU Reception operation, IAB-MT reception operation and IAB-DU transmission operation, IAB-MT transmission operation and IAB-DU reception operation. In order to perform effective multiplexing, for the IAB node, it is necessary for the parent node of the IAB node to coordinate some multiplexing operation combinations related to some factors so that the IAB node can effectively perform the corresponding multiplexing operation combination. However, the IAB node and the parent node have not yet formed a unified understanding of the combination of multiple operations in a time unit.

This application proposes a multiplexing operation method, device, node, and storage medium, aiming to implement a unified understanding of the multiplexing operation combination between the first node and the second node, so that the second node can effectively execute according to the first operation combination Corresponding multiplexing operation.

The embodiment of this specification provides a multiplex operation method, which includes:

Instruct the first operation combination to the second node; where the first operation combination includes any one of the following: a combination of multiple operations, a combination of multiple operations and a frame structure, and a combination of multiple operations and availability.

The embodiment of this specification further provides a multiplexing operation method, which includes:

Configure the first operation combination; where the first operation combination includes the operation combination of the second node, and the first operation combination includes any one of the following: multiplexing operation combination, multiplexing operation and frame structure combination, multiplexing operation and availability combination.

The embodiment of this specification further provides a multiplexing operation method, which includes:

The second node obtains the first operation combination; the second node determines the transmission direction according to the first operation combination; wherein, the first operation combination includes any one of the following: a combination of multiple operations, a combination of multiple operations and a frame structure, Combination of multiplexing operation and usability.

The embodiment of this specification further provides a multiplex operation device, which includes:

The instruction module is used to instruct the first operation combination to the second node.

The embodiment of this specification further provides a multiplex operation device, which includes:

The configuration module is used to configure the first operation combination; where the first operation combination includes the operation combination of the second node, and the first operation combination includes any one of the following: multiplexing operation combination, multiplexing operation and frame structure combination, multiplexing Combination of operation and availability.

The embodiment of this specification further provides a multiplex operation device, which includes:

The obtaining module is used to obtain the first operation combination; the judging module is used to determine the transmission direction according to the first operation combination.

The embodiment of this specification further provides a network node, which includes a memory, a processor, and a computer program stored on the memory and running on the processor. When the processor executes the computer program, the actual As the multiplex operation method provided in the embodiment of this specification.

The embodiment of the present specification further provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the multiplexing operation method provided in the embodiment of the present specification.

The embodiments of this specification provide a multiplexing operation method, device, node, and storage medium. The method includes a first node instructing a first operation combination to a second node. Through the above solution, a unified understanding of the multiplexing operation combination of the first node and the second node can be implemented, so that the second node can effectively perform the corresponding multiplexing operation according to the first operation combination.

Hereinafter, the embodiments of this specification will be described with reference to the accompanying drawings.

In addition, in the embodiments of the present specification, words such as "optionally" or "exemplarily" are used to represent examples, illustrations, or illustrations. Any embodiment or design solution described as "optional" or "exemplary" in the embodiments of this specification should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "optionally" or "exemplary" are used to present related concepts in a specific manner.

As shown in Figure 1, the four nodes from top to bottom are the fourth node, the first node, the second node, and the third node. Taking the second node as a reference, the first node is called the parent node, and the third node is called the child node. The first node is an IAB node or a donor DU or a relay node, the fourth node is a donor node or a CU node, and the host node is a node that contains a Central Unit (CU) or a node that does not contain a CU , The second node is an IAB node, and the third node is an IAB node or user equipment (User Equipment, UE).

In the embodiment of this specification, the child node and the parent node are a relative term between nodes. If the third node is used as a reference, the second node is the parent node of the third node.

Here, taking the second node as a reference, the second node includes two types of units, namely the first type of unit and the second type of unit, where the first type of unit can be an MT unit, and the second type of unit can be a DU unit. The second node communicates with the third node through the second type unit to serve the third node, for example, including scheduling the third node to perform downlink reception or uplink transmission. The second node performs the scheduling of the first node through the first type of unit, for example, includes performing the downlink receiving or uplink sending operation scheduled by the first node. The link between the IAB-MT and the parent node becomes the backhaul link, and the IAB-MT performs the uplink transmission and downlink reception scheduled by the parent node. IAB-DU communicates with sub-nodes. The link between IAB-DU and sub-nodes is called sub-link. IAB-DU schedules sub-nodes, IAB-DU performs uplink reception and downlink transmission, and sub-nodes perform corresponding uplink transmission and Downlink reception. One IAB node corresponds to one or more second type units, and one second type unit corresponds to one or more cells.

There are many combinations of the number of hops and node types in the actual network. The first node and the fourth node are connected through one or more hops, or the first node and the fourth node coexist on the same device, or the first node The fourth node and the fourth node may also be located in different devices. The signaling received by the second node may come from the first node or the fourth node.

In the 3rd Generation Partnership Project Release-16 (3GPP Rel-16) protocol, IAB nodes support the backhaul link and access link time division multiplexing with high priority, and the agreement is at the same time It is also forward compatible and supports enhanced multiplexing methods, such as Frequency Division Multiplexing (FDM), Space Division Multiplexing (SDM), and Full Duplex (Full Duplex). IAB's IAB-DU can act as a base station to provide services for child nodes or terminals. IAB's IAB-MT unit is connected to the parent node through a backhaul link.

The DU resource is the resource used by the IAB-DU to serve the child node or terminal. For example, the DL resource of the DU is the resource used by the IAB-DU to send data to the child node or terminal. The frame structure of the IAB-MT resource can be semi-statically configured by the network side, and the frame structure of the IAB-MT can also be indicated by the parent node through dynamic signaling. The resources used by IAB-DU for downlink transmission may correspond to the resources for uplink transmission of IAB-MT. For this resource, IAB-MT and IAB-DU have the opportunity to perform uplink transmission and downlink transmission at the same time, that is, IAB-MT performs uplink transmission , IAB-DU performs downlink transmission, and the identification code of this multiplexing mode is Case A. The resource used by the IAB-DU unit for uplink reception may correspond to the downlink reception resource of IAB-MT. For this resource, IAB-MT and IAB-DU have the opportunity to perform downlink reception and uplink reception at the same time, that is, IAB-MT performs downlink reception , IAB-DU performs uplink reception. The identification code of this multiplexing mode is Case B. The resources used by the IAB-DU unit for downlink transmission may correspond to the downlink reception resources of IAB-MT. For this kind of resources, IAB-MT and IAB-DU have the opportunity to perform downlink reception and downlink transmission at the same time, that is, IAB-MT performs downlink reception , IAB-DU performs downlink transmission, and the identification code of this multiplexing mode is Case C. The resource used by IAB-DU for uplink reception may correspond to the uplink transmission resource of IAB-MT. For this resource, IAB-MT and IAB-DU have the opportunity to perform uplink transmission and uplink reception at the same time, that is, IAB-MT performs uplink transmission. IAB-DU performs uplink reception. The identification code of this multiplexing mode is Case D.

The above-mentioned Case A, Case B, Case C, and Case D perform two operations at the same time means that there is at least a certain time interval to implement the IAB-DU and IAB-MT operations at the same time. For Case B, for example, in some cases, the downlink receiving operation of IAB-MT has a certain time lag relative to the uplink receiving operation of IAB-DU, as shown in Figure 2. Another example is CaseA. Due to timing reasons, the uplink transmission operation of the IAB-MT has a certain time advance relative to the downlink transmission operation of the IAB-DU. As shown in Figure 3.

It is not ruled out that some situations or mechanisms can be used to ensure that the operations of IAB-MT and IAB-DU can be time aligned. The time units corresponding to the IAB-MT and the IAB-DU are aligned in time, and there is still a partial overlap between the operations of the IAB-MT and the IAB-DU. For example, the time units of IAB-MT and IAB-DU are aligned, IAB-MT is only scheduled in a part of one time unit and/or IAB-DU only schedules IAB child nodes in a part of one time unit.

The IAB node may support one or more of Case A, Case B, Case C, and Case D, or may not support any of Case A, Case B, Case C, and Case D. When the IAB node supports one or more of Case A, Case B, Case C, and Case D, in order to ensure that the IAB node effectively executes Case A, Case B, Case C, Case D, and no-limited in a time unit For one or more multiplexing operations, the IAB node and the parent node should have a consistent understanding of the multiplexing mode or potential multiplexing mode of a time unit. No-limited means that the IAB node can execute any one or a combination of Case A~Case D without restriction.

When the IAB node does not execute any of Case A, Case B, Case C, and Case D in a time unit, the IAB node corresponds to the TDM operation in this time unit, which means that IAB-MT and IAB-DU are the most in this time unit Only perform one operation.

The operation corresponding to TDM is no-TDM, which can be that the IAB node supports one or more of Case A, Case B, Case C, and Case D. The operation of No-TDM can further indicate one or more multiplexing modes.

The aforementioned time unit involved may include at least one of the following: Orthogonal Frequency Division Multiplexing (OFDM) symbols, time slots, subframes, and radio frames.

For Case A, Case B, Case C, Case D, no-TDM, the second node may be further instructed to perform SDM and/or FDM multiplexing. For example, Case A of SDM indicates that the IAB node can perform uplink transmission and downlink transmission in space division.

The embodiment of this specification provides a multiplexing operation method, which is applied to the first node. The flowchart of the method is shown in Fig. 4a, and the method includes the following steps:

S4001. Instruct the first operation combination to the second node.

The above-mentioned second node is a child node of the first node, that is, the first node instructs the first operation combination to its own child node. The first operation combination may include one or more time unit multiplex operations, among which, a first The operation combination corresponds to a combination identification code (Identification, ID).

Exemplarily, the first operation combination may include any one of the following, for example, a combination of multiple operations, a combination of multiple operations and a frame structure, and a combination of multiple operations and availability.

The embodiment of this specification provides a multiplexing operation method, which is applied to a first node, and the method includes the first node instructing a first operation combination to a second node; wherein the first operation combination includes any one of the following: a multiplexing operation combination , Multiplexing operation and frame structure combination, multiplexing operation and usability combination. Through the above solution, a unified understanding of the multiplexing operation combination of the first node and the second node can be implemented, so that the second node can effectively perform the corresponding multiplexing operation according to the first operation combination.

Exemplarily, before the above step S4001, the first node may configure the first operation combination of the second node, that is, the first node configures and instructs the first operation combination to the second node. The flow of the method may be as shown in Figure 5. Shown.

Alternatively, before step S4001, the fourth node may configure the first operation combination of the second node, and the first node obtains the first operation combination configured by the fourth node, and instructs the first operation combination to the second node, That is, the first node only indicates the first operation combination to the second node without configuration. The flow of this implementation program can be shown in FIG. 6.

Optionally, only the first node may configure the first operation combination without instructing the second node. For example, the procedure may be as shown in Fig. 4b, and the method may include:

S401. Configure a first operation combination.

In the embodiment of this specification, the first operation combination may include one or more time unit multiplex operations, wherein one first operation combination corresponds to a combination identification code (Identification, ID). The first node can configure the first operation combination of the second node, that is, the first node does not need to indicate the combination ID of the first operation combination for the second node, and the second node and the first node agree or preset a first operation combination, For example, it corresponds to the combination with the smallest ID.

The second node is a child node of the first node.

Exemplarily, the first operation combination may include any one of the following, for example, a combination of multiple operations, a combination of multiple operations and a frame structure, and a combination of multiple operations and availability.

Optionally, the foregoing multiplexing operation method can also be implemented through the method shown in FIG. 5. As shown in FIG. 5, the method may include the following steps:

S501. Configure a first operation combination.

In the embodiment of this specification, the first node may configure a first operation combination for the second node, and the first operation combination may be used to indicate the multiplex operation that the second node can perform in a corresponding time unit. For example, the corresponding combination ID can be indicated for one time unit, or the corresponding combination ID can also be indicated for multiple time units. The second node is a child node of the first node. For example, the first node and the second node may be adjacent upper and lower nodes.

The first operation combination of the first node configuration may include any one of the following, for example, a combination of multiplexing operation, a combination of multiplexing operation and frame structure, and a combination of multiplexing operation and availability.

S502: Instruct the first operation combination to the second node.

Optionally, the first operation combination may include one or more time unit multiplex operations, wherein one first operation combination corresponds to one combination ID. This step can be understood as that the first node indicates the combined ID of the first operation combination to the second node, which is used to indicate the multiplex operation that the second node can perform in the corresponding time unit. For example, the corresponding combination ID may be indicated for one time unit, or multiple time units may be indicated to indicate the corresponding combination ID.

That is, the difference between the embodiment of this specification and the solution provided in Figure 4b is that in this specification, the first node needs to be configured for the second node and indicates the first operation combination; in the solution of Figure 4b, the first node is directly the second node. The node configures the first operation combination without instructions.

Optionally, the multiplexing operation method in the embodiment of this specification can also be implemented by the first node through the method shown in FIG. 6. As shown in FIG. 6, the method may include the following steps:

S601. Acquire a first operation combination configured by the fourth node.

The fourth node in the embodiment of this specification can be understood as a host node or a CU node, that is, the fourth node configures the first operation combination, and the first node obtains the first operation combination configured by the host node. The first operation combination may include One or more time units of multiplex operations, where a first operation combination corresponds to a combination ID. The first operation combination is the first operation combination regarding the second node.

Exemplarily, the foregoing first operation combination may include any one of the following, for example, a combination of multiple operations, a combination of multiple operations and a frame structure, and a combination of multiple operations and availability.

S602: Instruct the first operation combination to the second node.

The first node may indicate the combination ID of the first operation combination configured by the fourth node to the second node, for example, indicate a combination ID for one time unit, or indicate a combination ID for multiple same time units.

The foregoing second node is a child node of the first node. For example, the first node and the second node may be adjacent upper and lower nodes.

Different from the above two implementation methods, the method shown in Figure 6 is that the first node only needs to indicate the combination ID of the first operation combination to the second node, instead of configuring the first operation combination for the second node. .

In an example, the aforementioned combination of multiplexing operations may indicate multiplexing operations on one or more time units of the second node, and the multiplexing operations may include Time Division Multiplexing (TDM), no-TDM, Any one of SDM, FDM, multiplex mode 1, multiplex mode 2, multiplex mode three, multiplex mode four, no-limited. Among them, multiplexing mode 1 can be understood as the case of Case A, multiplexing mode 2 can be understood as the case of Case B, multiplexing mode 3 can be understood as the case of Case C, and multiplexing mode 4 can be understood as the case of Case D. .

Exemplarily, a schematic diagram of a combination of multiple operations can be shown in Figure 7, where multiple operations 1, multiple operations 2, ..., multiple operations N in Figure 7 can be TDM, Case A, Case A, and Case A, respectively. One or more of B, Case C, Case D, no-TDM, and no-limited. For example, if the multiplexing operation corresponding to a time unit is Case A, it means that the second node can perform IAB-MT and IAB-DU simultaneous transmission in this time unit. If the multiplexing operations corresponding to a time unit are Case A and Case D, the IAB-MT and IAB-DU of the second node can perform the multiplexing operation of Case A or Case D in this time unit.

The combination of the multiplexing operation and the frame structure may indicate the multiplexing operation on one or more time units of the second node, and indicate the frame structure of one or more time units of the second node.

The combination of multiplexing operation and availability may indicate multiplexing operation on one or more time units of the second node, and indicate the availability of one or more time units of the second node.

For example, the frame structure of IAB-MT in a time unit includes downlink (DownLink, DL) and uplink (UpLink, UL), the frame structure of IAB-DU includes UL and DL, and the DL resources of IAB-MT and IAB-DU UL resources overlap or partially overlap, and the UL resources of IAB-MT overlap or partially overlap the DL resources of IAB-DU. If the first node indicates the multiplex operation combination corresponding to this time unit as Case A and Case B, It means that the second node can perform Case B multiplexing when the DL resource of the IAB-MT overlaps or partially overlaps the UL resource of the IAB-DU, and the UL resource of the second node overlaps the DL resource of the IAB-DU. Or partially overlap and partially perform Case A multiplexing. If the multiplexing operation corresponding to a time unit is TDM, it means that the second node executes the IAB-MT and IAB-DU operations in this time unit time-divisionally. If the multiplexing operation corresponding to a time unit is no-TDM, it indicates that the operations that the second node can perform in this time unit include at least one of the following: IAB-MT and IAB-DU of the second node can be simultaneously unrestricted To perform operations, the IAB-MT and IAB-DU of the second node can perform corresponding multiplexing operations according to the resource transmission direction of IAB-MT and IAB-DU. The IAB-MT and IAB-DU multiplexing operation types of the second node The first node's instruction determination is required.

For example, in an example, the implementation manner in which the first node instructs the first operation combination to the second node in the foregoing steps S502 and S602 may include: the first node may notify the effective first operation combination by means of notification signaling. The combined ID of indicates to the second node.

Exemplarily, the aforementioned notification signaling may include Radio Resource Control (RRC) signaling, Media Access Control Control Element (MAC CE), and Downlink Control Information (DCI) Any one of them.

Optionally, the DCI may include DCI format 2_x, or DCI format 2_5, or DCI format 2_0, where DCI format 2_x may be understood as a new DCI format different from DCI format 2_5 and DCI format 2_0.

Optionally, the aforementioned DCI may also be interleaved with a first radio network temporary identity (Radio Network Temporary Identity, RNTI). Exemplarily, when the first node sends the DCI interlaced coded by the first RNTI to the second node, the meaning is that the DCI is used to indicate the first operation combination.

Exemplarily, when the first node indicates the combination ID of the first operation combination through the MAC CE, the MAC CE may include an indication field for indicating a combination ID, and the combination ID indicates to the second node the first effective combination ID. Operation combination.

Optionally, as in the above step S401, for a time unit, the first node may also only configure the first operation combination, without indicating to the second node, it agrees with or presets a multiplexing operation mode with the second node, For example, the first node and the second node agree or preset that the multiplex operation corresponding to the first operation combination is TDM.

Optionally, the first node may not configure the first operation combination for the second node, and the first node and the second node agree or preset a multiplexing operation mode, for example, the first node and the second node agree or preset The multiplex operation corresponding to the first operation combination is TDM.

In an example, the first operation combination configured above may include an offset, and the offset is used to indicate the time offset for the notification signaling to take effect, and the notification signaling is the information used to indicate the first operation combination. make. Exemplarily, the offset may include at least one of the following: a radio frame, a subframe, a time slot, and an OFDM symbol.

Optionally, the first node is configured for the second node, and/or the indicated first operation combination may indicate the multiplexing operation in the following ways:

The one or more time units corresponding to the first operation combination is the period of the first operation combination, that is, the first operation combination functions periodically. For example, if a first operation combination corresponds to several time units, the multiplex operations corresponding to these several time units may be periodically effective until the first node is configured for the second node again, and/or the first operation combination is indicated.

Alternatively, the one or more time units corresponding to the first operation combination is the number of time units indicated by the first operation combination, and the first operation combination only indicates the operation combination of the corresponding number of time units and does not need to be repeated.

Alternatively, the first node determines the number of valid times of the first operation combination in a configured or agreed manner. That is, the first operation combination works repeatedly several times. For example, if the first node configures the number of valid times of the first operation combination to be the number 1, then the first operation combination will be repeatedly valid once.

In an example, the implementation manners of configuring the first operation combination in the foregoing steps S401 and S501 may include, but are not limited to, the following manners:

The first method is to configure the first operation combination of the second node; the second method is to configure the first operation combination of the second type of unit of the second node; the third method is to configure the second type of unit corresponding to the second node The first operation combination of the DU cell (DU cell); the fourth way is to configure the first operation combination of the cell corresponding to the second type unit of the second node and the component carrier corresponding to the first type unit of the second node.

The cell corresponding to the second type unit can be one cell or multiple cells. The first node can configure one or more first operation combinations to the cells of the second type unit of the second node. Multiple operations corresponding to a time unit can be It is one or more of TDM, Case A, Case B, Case C, Case D, no-TDM, and no-limited.

As shown in Fig. 8, the first node configures a first operation combination of several time units for the second node through high-level signaling. In Figure 8, multiplex operation 1_1, multiplex operation 1_2, ..., multiplex operation 1_N1 are a first operation combination configured by the IAB-DU cell i of the IAB-DU whose first node is the second node, and a time unit corresponds to multiple operations. The work operation may include one or more of TDM, Case A, Case B, Case C, Case D, no-TDM, and no-limited. N1 represents the multiplexing configured by the first node for the cell i of the second node. The number of time units in the operation combination. The first node may also configure other multiplexing operations for the cell i of the second node, and the number of time units corresponding to the first operation combination configured by the first node for the second node may be the same or different. Alternatively, the multiplex operations corresponding to the same time unit of the first operation combination configured by the first node for the second node may be the same or different. For example, in a first operation combination, the first node configures the multiplex operation for the time unit 1 of cell i as Case A, and in another first operation combination, the first node configures multiple operations for the same time unit of cell i. The work operation is TDM.

In Figure 8, cell i represents the cell numbered i, and the number can be a global number or a region number. For example, the global number is the public land mobile network (Public Land Mobile Network, PLMN) and the cell number within the PLMN. The area number is the physical cell ID or the service cell number or the cell number within the PLMN.

The second node may include multiple cells, and correspondingly, the first node may configure one or more first operation combinations for the multiple cells. Alternatively, the first node may also configure one or more first operation combinations for the second node, and the one or more first operation combinations may be applied to all cells of the second node. Alternatively, the first node may configure one or more first operation combinations for one DU of the second node, and the configured first operation combinations may be applied to all DU cells corresponding to one DU of the second node.

As shown in Figure 9, the first node can send a message to the second node's second-type unit (IAB-DU), or a DU cell (DU cell) corresponding to a second-type unit of the second node, or the second node The cell corresponding to the second type unit (IAB-DU) and the component carrier (IAB-MT CC) corresponding to the first type unit of the second node are configured with multiple first operation combinations, and each multiplexing operation combination corresponds to one or more For multiple operations in a time unit, each multiple operation combination corresponds to a combination ID.

Optionally, when the first node indicates the combination ID of the first operation combination to the second node through the MAC CE, the first operation combination corresponding to the combination ID is the effective first operation combination. Exemplarily, the manner in which the first operation combination takes effect may include at least one of the following manners:

Take the duration corresponding to the first operation combination as the cycle to take effect repeatedly, until the first operation combination is updated; only the time unit corresponding to the first operation combination takes effect, and does not need to take effect periodically; through MAC CE notification or the first node and the second node It is agreed that the number of effective cycles is 1, then the first operation combination takes effect for 1 cycle, and this cycle corresponds to the duration corresponding to one or more time units corresponding to the first operation combination; it takes effect periodically until the first node reaches the first node Until the second node sends a new MAC CE.

In an example, when the first node notifies the second node of the first operation combination through the DCI format 2_x, the first node may indicate a first operation combination through the first operation combination index field of the DCI format 2_x. The multiplexing operation of one time unit can be indicated by the index value in Table 1 as shown below. Table 1 shown below is only an exemplary description, and does not limit the content. Table 1 Index value meaning Index 0 TDM Index 1 Case A Index 2 Case B Index 3 Case C Index 4 Case D Index 5 Case A and Case B Index 6 Case A and Case C Index 7 Case A and Case D Index 8 Case B and Case C Index 9 Case B and Case D Index 10 Case C and Case D Index 11 Case A and Case B and Case C Index 12 Case A and Case B and Case D Index 13 Case A and Case C and Case D Index 14 Case B and Case C and Case D Index 15 Case A and Case B and Case C and Case D

For example, a first operation combination with a combination ID of 1 configured by the first node through signaling corresponds to 5 time units of multiplexing operations. The 5 time units of multiplexing operations are [index 0, index 1] in Table 1. , Index 2, Index 3, Index 4], a combination ID of 1 indicates that the 5 time unit multiplex operations corresponding to the first operation combination are TDM, Case A, Case B, Case C, and Case D, respectively.

The first node can send to the second node through an indication field of DCI format 2_x, or, an IAB-DU of the second node, or a DU cell of the second node, or an MT CC and DU of the second node The cell pair ({MT CC, DU cell}pair) indicates the combination ID. If the combined ID notified in the indication field is 1, it means that the first node sends to the second node, or an IAB-DU of the second node, or a DU cell of the second node, or an MT of the second node The 5 time unit multiplex operations indicated by the CC and DU cell pair ({MT CC, DU cell}pair) are TDM, Case A, Case B, Case C, and Case D respectively.

Optionally, the first node is the second node, or, an IAB-DU of the second node, or a DU cell of the second node, or a pair of MT CC and DU cell of the second node ({MT CC , DU cell}pair) indicates the configuration information MultiplexingModeIndicator indicated by the first operation combination, including at least one of the following:

ID or first RNTI used to descramble the physical layer control signaling; the data payload of the physical layer control signaling; the search space for potential transmission of the first operation combination indication; the cell index corresponding to the multiplex indication information; the first operation The position of the combination indication field in the physical layer control signaling; one or more first operation combinations.

The one or more first operation combinations include at least one of the following:

The first operation combination of one or more time units; the corresponding relationship between the first operation combination and the combination ID of the first operation combination.

In an example, the first node may indicate a valid first operation combination to the second node through a New Radio (NR) DCI format. For example, the first node indicates a valid multiplexing operation combination through the DCI format 2_0 or DCI format 2_5 of the first RNTI interlaced coding. The multiplex operation of one time unit indicated by the first node is indicated by the index value in Table 1 above.

For example, the first node can indicate that a first operation combination with a combination ID of 1 corresponds to multiple operations of 5 time units. The multiple operations of these 5 time units are [index 0, index 1, index 2. Index 3, Index 4], the combination ID is 1, which means that the 5 time unit multiplex operations corresponding to the multiplex operation combination are TDM, Case A, Case B, Case C, and Case D, respectively.

The first node can indicate the second node through an indication field of the DCI format 2_0 or DCI format 2_5 of the first RNTI interlaced coding, or an IAB-DU of the second node, or a DU cell of the second node, or , A combination ID corresponding to a pair of MT CC and DU cell ({MT CC, DU cell} pair) of the second node.

In an example, the first node can send to the second node, or, an IAB-DU of the second node, or a DU cell of the second node, or a pair of MT CC and DU cell of the second node ({ MT CC, DU cell}pair) configure one or more first operation combinations. The first node may indicate a valid first operation combination to the second node through a DCI format of NR.

For example, the first node indicates a combination ID of a first operation combination through DCI, or the first node indicates a combination ID through a field of DCI format 2_5. The DCI format 2_5 of the NR is used to indicate the availability of soft resources of the DU. . Exemplarily, the availability of soft resources in a time slot in NR corresponds to the 8 states in Table 2 (corresponding to Table 14-3 of 3GPP Technical Specification 38213-g20 (Technical Specification38213-g2, TS38213-g20)). Table 2 Index value meaning 0 No indication of the availability of soft resources 1 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication 2 Uplink soft resources are indicated as available, but downlink and flexible soft resources have no availability indication 3 Downlink and uplink soft resources are indicated as available, but there is no availability indication for flexible soft resources 4 Flexible soft resources are indicated as available, and there is no availability indication for uplink and downlink soft resources 5 Downlink and flexible soft resources are indicated as available, and uplink soft resources have no availability indication 6 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication 7 Downlink, uplink, and flexible soft resources are indicated as available

For example, a soft resource availability indicator with a combination ID of 1 corresponds to the availability of 5 time units, respectively corresponding to [0, 1, 2, 3, 4] in Table 2, and the corresponding soft resource availability indicators for the 5 time units are respectively Availability is not specified, downlink soft resources are indicated as available and uplink and flexible soft resources have no availability indication, uplink soft resources are indicated as available and downlink and flexible soft resources have no availability indication, downlink and uplink soft resources are indicated as available and flexible soft resources There is no indication of resource availability, the flexible soft resource is indicated as available, and the uplink and downlink soft resources have no indication of availability. A multiplex operation combination with a combination ID of 1 indicates the multiplex operations corresponding to 5 time units, which are [index 0, index 1, index 2, index 3, index 4] in Table 1, corresponding to 5 time units The multiplex operations are TDM, Case A, Case B, Case C, and Case D. That is, the first node sends a DCI format 2_5 to the second node to indicate the soft resource availability and multiplexing operation combination of the second node.

In an example, when the first node uses the DCI format of NR to notify the second node of a combination ID, it can also indicate a valid first operation combination to the second node through the DCI format 2_0.

The table used to indicate the frame structure of the time slot in NR has 256 states, of which 98 states (corresponding to the 57 states in 3GPP Table 11.1.1-1 and 41 states in Table 14-2) are defined times Slot frame structure pattern, the remaining 158 states are reserved. Several items in the corresponding table 1 can be selected from the remaining 158 states to indicate the multiplex operation of the corresponding time unit.

For example, a first operation combination with a combination ID of 1 indicates that the multiple operations corresponding to 5 time units are [index 0, index 1, index 2, index 3, index 4] in Table 1, indicating the first operation The multiplex operations corresponding to the combination of 5 time units are TDM, Case A, Case B, Case C, and Case D. The first node indicates the combination ID to the second node through DCI 2-0. If the combination ID indicated by the multiplex operation combination is 1, it means that the first node informs the second node that the 5 time units of multiplex operations are TDM, Case A, Case B, Case C, Case D. A frame structure with a combination ID of 1 indicates that the frame structure corresponding to the 5 time slots corresponds to [0, 1, 2, 3, 0] in Table 3 (corresponding to 3GPP TS38213-g20 Table 11.1.1-1), that is, the A combination ID of 1 indicates that the frame structure of 5 time slots is full downlink, full uplink, and full flexibility, and the first 13 OFDM symbols are downlink, and the last OFDM symbol is flexible and full downlink. table 3 Format OFDM symbol index in time slot 0 1 2 3 4 5 6 7 8 9 10 11 12 13 0 D D D D D D D D D D D D D D 1 U U U U U U U U U U U U U U 2 F F F F F F F F F F F F F F 3 D D D D D D D D D D D D D F ... 54 F F F F F F F D D D D D D D 55 D D F F F U U U D D D D D D 56 – 254 Reserve 255 The terminal determines the direction of the symbols in the time slot according to semi-static or dynamic scheduling

Exemplarily, the index value indicated by the DCI format 2_0 sent by the first node to the second node is 1 indicating that the frame structure of the 4 time slots is full downlink, full uplink, full flexibility, and the first 13 OFDM is the last downlink OFDM. The symbol is elastic. The index value indicated by the DCI format 2_0 sent by the first node to the second node is 1, and it can also indicate that the first operation combinations of 5 time units are TDM, Case A, Case B, Case C, and Case D; or one The first operation combination with the combination ID of 1 indicates that the multiplexing operations corresponding to the 5 time units are the multiplexing operations corresponding to the meanings of [index 0, index 1, index 2, index 3, index 4] in Table 1. That is, the first node sends a DCI format 2_0 to the second node, which can indicate the frame structure and multiplexing operation combination of the second node.

In an example, the first node may configure the first combination, the second combination, and the third combination for the second node. Exemplarily, the first node may configure one or more first combinations for the second node, and the first combination may be an availability combination, which may correspond to an index. Similarly, the first node may configure one or more second combinations for the second node, or configure one or more third combinations for the second node. Among them, the second combination may be a combination of multiple operations, a second combination may correspond to one index, and the third combination may correspond to a first combination index and a second combination index. The values of the first combination index and the second combination index may be the same or different.

For example, the first node configures a first combination for the second node, and its index value is index 1, which represents the availability indication of one or more time units. The first node configures a second combination for the second node, and its index value is index 2, which represents a combination of multiple operations in one or more time units. The first node configures a third combination for the second node, and its index value is index 3, which represents the availability combination of index 1 and the multiplexing operation combination of index 2. When the first node informs or indicates the third combination of index 3, it means that the second node is instructed to determine the availability combination of one or more time units corresponding to the first combination of index 1 according to the third combination of index 3, and determine The second combination of index 2 corresponds to the multiplex operation combination of one or more time units.

Exemplarily, the first node may send a physical layer signaling to the second node to indicate the third combined index, and the physical layer signaling may include an indication field through which a third combined index is indicated. The third combined index corresponds to a first combined index and a second combined index. The first combined index may indicate one or more time unit soft resource availability combinations of the second node, and the second combined index may indicate the second node's soft resource availability combination. A combination of multiple operations with one or more time units.

In an example, the first node may configure the time domain distribution of TDM and no-TDM for the second node. Illustratively, the time domain distribution of TDM and no-TDM of the second node may be as shown in FIG. 10. The second node, or an IAB-DU of the second node, or a DU cell of the second node, or a pair of MT CC and DU cell ({MT CC, DU cell} pair) of the second node may correspond to One or more combinations of availability and multiple operations, and one combination of the combination of availability and multiple operations corresponds to the availability of 0 or several time units, and the multiple operations of 0 or a certain number of time units.

Optionally, the first node may indicate to the second node an effective combination ID of the first operation combination through the existing DCI format of NR. For example, in NR, the first node can indicate the availability of soft resources of IAB-DU through DCI format 2_5.

Exemplarily, in the case that DCI includes DCI format 2_5, the above-mentioned combination ID may be used to indicate the availability of the time unit corresponding to TDM, or the combination ID indicates the multiplexing operation of the no-TDM corresponding time unit, or the combination ID indicates the corresponding Multiplex operation and availability of time units.

As shown in Figure 11, the first node can configure one or more combinations of time units corresponding to TDM and no-TDM through signaling, and each combination corresponds to a combination ID. FIG. 11 shows multiple combination IDs, and each combination ID can correspond to one or more time units. If the time unit corresponds to TDM, the indication content of the corresponding time unit in the combination ID is an availability indicator, which can be one of the items in Table 2; if the time unit corresponds to no-TDM, the corresponding time unit in the combination ID The instruction content is a multi-task operation combination instruction, and the multi-task operation combination can be one of the items in Table 1. Wherein, the granularity of the time unit indicating the multiplexing operation combination and the granularity of the time unit indicating the availability may be the same or different.

For example, according to the granularity of radio frames, the first node configures several radio frames as TDM and several radio frames as non-TDM. The granularity of time slots is used to indicate availability, and the granularity of radio frames is used to indicate multiplex operation. If a time unit in Figure 11 is a radio frame, then when the subcarrier interval is 15kHz, a radio frame consists of 10 time slots, and the availability indication of time unit 2 can be indicated separately through the 10 entries in Table 2. Availability of 10 time slots. The multiplexing operation combination indication of time unit 1 indicates the multiplexing operation combination of a wireless frame through one entry in Table 1. Or, if the multiplex operation instruction of time unit 1 uses the time slot as the granularity indicator, and when the subcarrier interval is 15kHz, a radio frame consists of 10 time slots, then the multiplex operation instruction of time unit 1 can be seen in Table 1. The 10 entries in, respectively indicate the multiple operation combinations corresponding to the 10 time slots.

In an example, the first node may indicate to the second node an effective combination ID of the first operation combination through the DCI format of NR. For example, the first node may indicate the effective first operation combination for the second node through DCI format 2_0. Exemplarily, when the DCI includes DCI format 2_0, if the time unit of the first type unit is an F unit, the combination ID indicates the frame structure of the time unit, or if the time unit of the first type unit is a UL unit or DL unit, the combination ID indicates the multiplex operation of the time unit. That is, when the time unit of the IAB-MT of the second node is semi-statically configured as UL or DL, the frame structure of DCI format 2_0 indicates that the UL or DL of these positions cannot be changed, and the first node uses DCI format 2_0 to indicate the time unit Multitasking operation.

The table used to indicate the frame structure of the time slot in NR has 256 states, of which 98 states (corresponding to the 57 states in Table 11.1.1-1 of 3GPP TS38213-g20 and 41 states in Table 14-2) are The time slot frame structure pattern has been defined, and the remaining 158 states are reserved states. Select several states from the remaining 158 states to indicate the multiple operation instructions corresponding to Table 1.

For example, the frame structure of the configured IAB-MT of the second node is shown in Figure 12. Among them, the transmission direction of 4 time units of the 5 time units of the second node is clear, and the transmission direction of one time unit is flexible and variable, that is, the F unit. The first time unit and the second time unit are DL, and the IAB-MT of the second node can perform downlink reception in these time units; the fourth time unit and the fifth time unit are UL, and the IAB-MT of the second node MT can perform uplink transmission in these time units; the third time unit is F, the operation of the second node's IAB-MT in this time unit is flexible, and its transmission direction can be based on semi-static transmission configuration or dynamic scheduling or dynamic Indicates judgment.

For the time unit of the transmission direction determination, the frame structure indication of DCI format 2_0 can be considered invalid. In addition, for resources of type F in the time unit of the IAB-MT, the second node determines the transmission direction of this resource according to the combination indicated by the DCI format 2_0.

The first node may configure one or more combinations for the second node, and the combination may be used to indicate the multiplexing operation of the time unit determined by the frame structure direction, or indicate the frame structure or the transmission direction of the time unit of the frame structure F. Among them, the frame structure corresponds to the 57 states in Table 11.1.1-1 of 3GPP TS38213-g20 and the 41 states in Table 14-2. One state indicates the frame structure of one time slot, and the multiplexing operation of one time unit corresponds to the remaining Several of the 158 states, the index range is 97~254 in TS38213-g20 table 11.1.1-1, and index 0~index 15 are in the range 97~254 in TS38213-g20 table 11.1.1-1 The 16 indexes of, state 0~state 15 are the meanings corresponding to the 16 indexes in Table 1, which correspond to the 16 multiplex operations shown in Table 1.

For the IAB-MT frame structure configuration in FIG. 12, the second node can perform multiplexing operations according to the first operation combination indicated in Table 1. For example, the multiplex operation combination and frame structure combination with a combination ID of 1 configured by the first node for the second node is [index 2 index 2 frame structure index 1 index 1 index 1], where index 1 corresponds to index 1 in Table 1. Corresponding meaning, index 2 corresponds to the meaning of index 2 in Table 1, and frame structure index 1 corresponds to the indexes in the range of 0~55 and 255 in Table 11.1.1-1 of TS38213-g20 and 56~96 in Table 14-2.

If the first node sends the DCI format 2_0 indicating the ID of 1 to the second node, it means that the first node indicates the second node. For the first time unit, the second node can perform Case A multiplexing; for the second For the time unit, the second node can perform the multiplexing of Case A; for the third time unit, the resource of type F is indicated as the frame structure corresponding to frame structure index 1; for the fourth time unit, the second node can Perform Case B multiplexing; for the fifth time unit, the second node can perform Case B multiplexing.

Corresponding to the IAB-MT frame structure configuration in FIG. 12, the second node can perform multiplexing operations according to the first operation combination indicated in Table 4. For example, the first node configures the multiplex operation combination and frame structure combination with a combination ID of 1 for the second node as [index 17 index 17 frame structure index 1 index 57 index 57].

If the first node sends the DCI format 2_0 indicating the ID of 1 to the second node, it means that the first node indicates the second node. For the first time unit, the second node can perform Case B multiplexing; for the second For the time unit, the second node can perform the multiplexing of Case B; for the third time unit, the resource of type F is indicated as the frame structure corresponding to frame structure index 1; for the fourth time unit, the second node can Execute the multiplexing of Case A and Case D; for the fifth time unit, the second node can execute the multiplexing of Case A and Case D. Table 4 Index value meaning index meaning 0 No indication of the availability of soft resources New index 61 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case A and Case D 1 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication New index 62 Downlink and flexible soft resources are indicated as available, and uplink soft resources have no availability indication, and Case A and Case D 2 Uplink soft resources are indicated as available, but downlink and flexible soft resources have no availability indication New index 63 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, and Case A and Case D 3 Downlink and uplink soft resources are indicated as available, but there is no availability indication for flexible soft resources Add index 64 Downlink, uplink, and flexible soft resources are indicated as available, and Case A and Case D 4 Flexible soft resources are indicated as available, and there is no availability indication for uplink and downlink soft resources New index 65 There is no indication of the availability of soft resources, and Case B and Case C 5 Downlink and flexible soft resources are indicated as available, and uplink soft resources have no availability indication New index 66 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case B and Case C 6 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication New index 67 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case B and Case C 7 Downlink, uplink, and flexible soft resources are indicated as available New index 68 Downlink and uplink soft resources are indicated as available, but there is no availability indication for flexible soft resources, and Case B and Case C Add index 1 There is no indication of the availability of soft resources, and TDM New index 69 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case B and Case C New index 2 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and TDM New index 70 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case B and Case C New index 3 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and TDM New index 71 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, and Case B and Case C New index 4 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and TDM New index 72 Downlink, uplink, and flexible soft resources are indicated as available, and Case B and Case C New index 5 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and TDM New index 73 There is no indication of the availability of soft resources, and Case B and Case D New index 6 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and TDM New index 74 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case B and Case D New index 7 Uplink and flexible soft resources are indicated as available, downlink soft resources have no availability indication, and TDM New index 75 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case B and Case D New index 8 Downlink, uplink, and flexible soft resources are indicated as available, and TDM New index 76 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case B and Case D New index 9 There is no indication of the availability of soft resources, and Case A New index 77 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case B and Case D New index 10 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case A New index 78 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case B and Case D New index 11 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case A New index 79 Uplink and flexible soft resources are indicated as available, downlink soft resources have no availability indication, and Case B and Case D New index 12 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case A New index 80 Downlink, uplink, and flexible soft resources are indicated as available, and Case B and Case D New index 13 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case A New index 81 There is no indication of the availability of soft resources, and Case C and Case D New index 14 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case A New index 82 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case C and Case D Add index 15 Uplink and flexible soft resources are indicated as available, and there is no availability indication for downlink soft resources, and Case A New index 83 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case C and Case D New index 16 Downlink, uplink, and flexible soft resources are indicated as available, and Case A New index 84 Downlink and uplink soft resources are indicated as available, but there is no availability indication for flexible soft resources, and Case C and Case D New index 17 There is no indication of the availability of soft resources, and Case B New index 85 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case C and Case D Add index 18 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case B New index 86 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case C and Case D New index 19 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case B New index 87 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, and Case C and Case D Add index 20 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case B New index 88 Downlink, uplink, and flexible soft resources are indicated as available, and Case C and Case D New index 21 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case B New index 89 There is no indication of the availability of soft resources, and Case A and Case B and Case C New index 22 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case B Add index 90 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case A and Case B and Case C New index 23 Uplink and flexible soft resources are indicated as available, and there is no availability indication for downlink soft resources, and Case B New index 91 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case A and Case B and Case C Add index 24 Downlink, uplink, and flexible soft resources are indicated as available, and Case B New index 92 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case A and Case B and Case C Add index 25 There is no indication of the availability of soft resources, and Case C New index 93 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case A and Case B and Case C New index 26 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case C New index 94 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case A and Case B and Case C New index 27 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case C New index 95 Uplink and flexible soft resources are indicated as available, and there is no availability indication for downlink soft resources, and Case A and Case B and Case C New index 28 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case C Add index 96 Downlink, uplink, and flexible soft resources are indicated as available, and Case A and Case B and Case C New index 29 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case C New index 97 There is no indication of the availability of soft resources, and Case A and Case B and Case D Add index 30 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case C New index 98 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case A and Case B and Case D New index 31 Uplink and flexible soft resources are indicated as available, downlink soft resources have no availability indication, and Case C Add index 99 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case A and Case B and Case D New index 32 Downlink, uplink, and flexible soft resources are indicated as available, and Case C Add index 100 Downlink and uplink soft resources are indicated as available, and there is no availability indication for flexible soft resources, and Case A and Case B and Case D New index 33 There is no indication of the availability of soft resources, and Case D Add index 101 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case A and Case B and Case D New index 34 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case D Add index 102 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case A and Case B and Case D New index 35 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case D Add index 103 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, and Case A and Case B and Case D New index 36 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case D New index 104 Downlink, uplink, and flexible soft resources are indicated as available, and Case A and Case B and Case D New index 37 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case D Add index 105 There is no indication of the availability of soft resources, and Case A and Case C and Case D New index 38 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case D Add index 106 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case A and Case C and Case D New index 39 Uplink and flexible soft resources are indicated as available, downlink soft resources have no availability indication, and Case D New index 107 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case A and Case C and Case D Add index 40 Downlink, uplink, and flexible soft resources are indicated as available, and Case D New index 108 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case A and Case C and Case D New index 41 There is no indication of the availability of soft resources, and Case A and Case B New index 109 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case A, Case C and Case D New index 42 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case A and Case B New index 110 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case A and Case C and Case D New index 43 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case A and Case B Add index 111 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, and Case A, Case C and Case D New index 44 Downlink and uplink soft resources are indicated as available, but there is no availability indication for flexible soft resources, and Case A and Case B Add index 112 Downlink, uplink, and flexible soft resources are indicated as available, and Case A and Case C and Case D New index 45 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case A and Case B Add index 113 There is no indication of the availability of soft resources, and Case B and Case C and Case D New index 46 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case A and Case B Add index 114 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case B, Case C and Case D Add index 47 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, and Case A and Case B New index 115 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case B, Case C and Case D New index 48 Downlink, uplink, and flexible soft resources are indicated as available, and Case A and Case B New index 116 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case B, Case C and Case D New index 49 There is no indication of the availability of soft resources, and Case A and Case C New index 117 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, Case B and Case C and Case D Add index 50 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case A and Case C Add index 118 Downlink and flexible soft resources are indicated as available, and uplink soft resources have no availability indication, Case B and Case C and Case D New index 51 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case A and Case C New index 119 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, Case B and Case C and Case D Add index 52 Downlink and uplink soft resources are indicated as available, but there is no availability indication for flexible soft resources, and Case A and Case C Add index 120 Downlink, uplink and flexible soft resources are indicated as available, Case B and Case C and Case D Add index 53 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case A and Case C New index 121 There is no indication of the availability of soft resources, and Case A and Case B and Case C and Case D New index 54 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case A and Case C Add index 122 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case A and Case B and Case C and Case D Add index 55 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, and Case A and Case C Add index 123 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case A and Case B and Case C and Case D Add index 56 Downlink, uplink, and flexible soft resources are indicated as available, and Case A and Case C Add index 124 Downlink and uplink soft resources are indicated as available, flexible soft resources have no availability indication, and Case A and Case B and Case C and Case D New index 57 There is no indication of the availability of soft resources, and Case A and Case D Add index 125 Flexible soft resources are indicated as available, uplink and downlink soft resources have no availability indication, and Case A and Case B and Case C and Case D New index 58 Downlink soft resources are indicated as available, uplink and flexible soft resources have no availability indication, and Case A and Case D Add index 126 Downlink and flexible soft resources are indicated as available, uplink soft resources have no availability indication, and Case A and Case B and Case C and Case D New index 59 Uplink soft resources are indicated as available, downlink and flexible soft resources have no availability indication, and Case A and Case D Add index 127 Uplink and flexible soft resources are indicated as available, and downlink soft resources have no availability indication, and Case A and Case B and Case C and Case D New index 60 Downlink and uplink soft resources are indicated as available, but there is no availability indication for flexible soft resources, and Case A and Case D Add index 128 Downlink, uplink, and flexible soft resources are indicated as available, and Case A and Case B, Case C and Case D

The above table 4 can be a newly defined table, or it can be added to Table 2 to indicate availability and multiplexing operation, for example, adding 8 states of availability in Table 2 and 16 states of multiplexing operation in Table 1 The added table item index is the above-mentioned new index 1~new index 128.

The above Table 4 is only an exemplary description, and does not limit the content in the table. For example, Table 4 can also use some rows in Table 4 above.

In an example, the first node can configure one or more combinations for the second node, and one combination corresponds to the availability and multiplexing operations of one or more time units, where the availability and multiplexing operations of one time unit can be a table Any one of 4.

Exemplarily, the first node may also configure one or more time unit combinations for the second node. When the index value is one of 0-7, the index may indicate the availability of a time unit. When the index value is newly added When one of index 1 to index 128 is newly added, it can indicate the availability and multi-tasking operation of a unit of time.

For example, the first node configures the second node with a combination ID of 1, and the combination corresponds to the index of 4 time units corresponding to [7, new index 9, new index 10, new index 11] in Table 4, which means The UL/DL/F soft resource of the first time unit of 4 time units is available, the second time sheet has no soft resource availability indication and the multiplex operation is Case A, and the third time unit downlink soft resource is indicated To be available, the uplink and flexible soft resources have no availability indication and the multiplex operation is Case A, the fourth time unit uplink soft resources are indicated as available, the downlink and flexible soft resources have no availability indication and the multiplex operation is Case A.

In an example, when the transmission direction indicated by the first operation combination is inconsistent with the transmission direction of the time unit of the unit of the first type of the second node, the indication of the first operation combination is an invalid indication; When the transmission direction indicated by an operation combination is inconsistent with the transmission direction of the time unit of the second type unit of the second node, the indication of the first operation combination is an invalid indication.

For example, the first node configures or indicates the first operation combination of one or more time units for the second node. If the first operation combination corresponds to the multiplex operation of the time unit and the IAB-MT of the second node corresponding to the time unit, And/or, if the semi-static transmission directions of the IAB-DU resources are inconsistent, the multiplexing operation indicated by the first operation combination corresponding to the time unit configured or indicated by the first node is an invalid configuration or an invalid indication.

Exemplarily, the frame structure of 5 time units of the IAB-MT of the second node is configured as [DL DL DL F UL], if the frame structure of 5 time units corresponding to the IAB-DU of the second node is configured as [DL F UL UL UL]. For the third time unit, the operation that IAB-MT can perform is downlink reception, and the operation that IAB-DU can perform is uplink reception, that is, the operation that can be performed in the third time unit is Case B's multiplexing. The third time unit configured or instructed by the node for the second node is the multiplexing operation of Case C, that is, instructing IAB-MT to perform downlink reception and IAB-DU to perform downlink transmission, then the first node is configured or instructed by the second node The multiplexing operation of the third time unit is an invalid configuration or instruction.

In an example, the first node configures or indicates a combined ID for the second node, and the combined ID corresponds to a multiplex operation in a time unit. If the multiplexing operation of a time unit corresponding to the multiplexing operation is inconsistent with the semi-static transmission direction (or dynamic transmission direction) of the IAB-MT and/or IAB-DU resources of this time unit of the second node, the first The node configuration and/or the instructed multiplexing operation changes the resource transmission direction of the IAB-MT and/or IAB-DU of the time unit.

Exemplarily, the frame structure of 5 time units of IAB-MT of the second node is configured as [DL DL DL F UL], and the frame structure of 5 time units of IAB-DU of the second node is configured as [DL F UL UL UL]. For the third time unit, the operation that IAB-MT can perform is downlink reception, and the operation that IAB-DU can perform is uplink reception, that is, the operation that can be performed in the third time unit is Case B's multiplexing. The third time unit corresponding to the first operation combination configured and/or instructed by the node for the second node is the multiplexing operation of Case C, that is, instructing IAB-MT to perform downlink reception and IAB-DU to perform downlink transmission. The multiplexing operation of Case C corresponding to an operation combination changes the transmission direction of the IAB-DU corresponding to the third time unit to DL.

In an example, the first node configures or indicates the first operation combination of one or more time units for the second node, and if the resource transmission direction of the IAB-MT time unit of the second node corresponding to the combination is F, then The first node configures or instructs the multiplexing operation of the time unit and the transmission direction of the IAB-MT.

Exemplarily, it is assumed that the frame structure of one time unit of the IAB-MT of the second node is configured as F, and if the frame structure of the time unit corresponding to the IAB-DU of the second node is configured as UL. For this time unit, the operation of IAB-MT is flexible, and the operation of IAB-DU is uplink reception. If the time unit configured or instructed by the first node for the second node is the multiplexing operation of Case B, then if the first node schedules the IAB-MT of the second node, the IAB-DU can perform uplink reception at the same time.

In an example, when the resource transmission direction of the first type unit of the second node is inconsistent with the transmission direction indicated by the first operation combination, the first type unit of the second node is determined according to the notification signaling that is sent later. And/or, when the resource transmission direction of the second type unit of the second node is inconsistent with the transmission direction indicated by the first operation combination, determine the second node’s second node according to the notification signaling sent later The transmission direction of the second type unit; wherein, the notification signaling with a later transmission time includes the signaling indicating the first operation combination and the signaling indicating the resource direction of the second node.

For example, if the first node is a first operation combination of one or more time units configured and/or instructed by the second node, if the combination corresponds to the resource transmission direction of the time unit of the IAB-MT of the second node is F, and F The resource is dynamically indicated as direction 1, and the direction of the time unit of the IAB-MT corresponding to the multiplexing operation is direction 2, and the transmission direction of the F resource of the IAB-MT is determined according to the subsequent indication signaling. Wherein, direction 1 can be DL or UL, and direction 2 can also be DL or UL.

Exemplarily, the direction of one time unit of the IAB-MT of the second node is F, and at time 1, the second node receives a DCI format 2_0 indicating that the direction of this time unit is UL. At time 2 (time 2 is later than time 1), the first node configures and/or instructs this time unit as a multiplexing operation of Case B, then based on the multiplexing operation, the direction of this time unit of IAB-MT is determined as DL.

In an example, the timing of the time unit corresponding to the first operation combination is determined according to the timing of the time unit of the cell corresponding to the second type unit of the second node; or, the timing of the time unit corresponding to the first operation combination is determined according to the second node The timing determination of the time unit of the component carrier of the first type unit.

In an example, in a case where a multiplex operation on a time unit corresponds to the elastic transmission of type F resources of the first type unit of the second node, the first operation combination indicates the transmission direction of the type F resources; and/or , In the case that the multiplex operation in one time unit corresponds to the F-type resource of the second-type unit of the second node, the first operation combination indicates the transmission direction of the F-type resource.

Or, in the case that the multiplex operation in one time unit corresponds to the flexible transmission of type F resources of the first type unit of the second node, the first operation combination indicates that when the second node performs the multiplex operation, the F type resource And/or, in the case that a multiplex operation in a time unit corresponds to the elastic transmission of type F resources of the second type unit of the second node, the first operation combination indicates that multiple operations are performed at the second node During work operation, the transmission direction of F-type resources.

In an example, the resource transmission direction of one time unit of the IAB-DU of the second node is F, and the first node configures and/or instructs the multiplex operation of this time unit for the second node. The multiplexing operation corresponds to the direction of this time unit to change the direction of the IAB-DU of this time unit, or indicates the operations that the IAB-DU can perform in the time unit of the corresponding IAB-DU when the IAB-MT is scheduled.

For example, the frame structure of one time unit of the IAB-MT of the second node is configured as D, if the frame structure of the time unit of the IAB-DU corresponding to the second node is configured as F. For this time unit of the IAB-DU, the multiplexing operation of the IAB-DU is F, that is, the IAB-DU can use the resource to schedule the third node to receive downlink or to schedule the third node to transmit uplink. When this time unit is the multiplexing operation of Case B, that is, if the first node schedules the IAB-MT of the second node, then in the time unit of the corresponding IAB-DU, the IAB-DU can perform uplink reception, or the IAB- The F of DU is judged to be UL.

The relationship between the corresponding IAB-DU time unit and the time unit corresponding to IAB-MT is at least one of the following:

The time unit corresponding to IAB-DU completely overlaps with the scheduled time unit of IAB-MT; the time unit corresponding to IAB-DU partially overlaps with the scheduled time unit of IAB-MT; the time unit corresponding to IAB-DU overlaps with IAB-MT One of the scheduled time units includes the other in the time span; the intersection of the time unit corresponding to the IAB-DU and the scheduled time unit of the IAB-MT.

In an example, if the resource transmission direction of the time unit of the IAB-DU of the second node is F, the first node is the first operation combination configured and/or instructed by the second node. The F resource of the IAB-DU of the second node is dynamically indicated by the first node as direction 1, and the direction of the IAB-DU corresponding to the multiplex operation of this time unit corresponding to the first operation combination configured and/or indicated by the first node is Direction 2, then the direction of the IAB-DU is judged as direction 2.

Optionally, the F resource of the IAB-DU of the second node is dynamically indicated as direction 1 by the first node at time 1, and at time 2, the first operation combination configured and/or indicated by the first node corresponds to this time unit The direction of the IAB-DU corresponding to the multiplex operation is direction 2. If time 2 is later than time 1, the direction of the time unit corresponding to IAB-DU is direction 2; if time 2 is earlier than time 1, the direction corresponding to IAB-DU The direction of the time unit is direction 1. If time 1 and time 2 belong to the same time or the same time within the error range, the transmission directions corresponding to the two signalings do not conflict.

Optionally, the F resource of the IAB-DU of the second node is dynamically indicated as direction 1 by the first node at time 1, and at time 2, the first operation combination configured and/or indicated by the first node corresponds to this time unit The direction of the IAB-DU corresponding to the multiplex operation is direction 2, and direction 1 and direction 2 do not conflict.

Optionally, in an example, the first operation combination may indicate the transmission direction of the second type unit of the second node when the second node performs multiplexing operation, and/or the transmission direction of the first type unit of the second node Transmission direction.

For example, the first node configures and/or indicates the operations that the IAB-DU can perform in the corresponding time unit when the IAB-MT is scheduled.

The frame structure of one time unit of the IAB-MT of the second node is configured as DL, if the frame structure of the time unit of the IAB-DU corresponding to the second node is configured as F. For this time unit of the IAB-DU, the operation of the IAB-DU is flexible, that is, the IAB-DU can use this resource to schedule the third node for downlink reception or schedule the third node for uplink transmission. When the first node configures for the second node and/or instructs this time unit to be the multiplexing operation of Case B, it means that when the first node schedules the IAB-MT of the second node, the IAB-DU of the second node can perform uplink reception , Or you can update the F of the IAB-DU to the direction corresponding to the multiplexing operation. For example, update F of IAB-DU to UL.

In an example, the first node configures and/or instructs one or more time units of multiplexing operation to the second node, and the one time unit multiplexing action indicates that the first node corresponds to one of the following factors according to the multiplexing operation At least one of the units of the first type of the second node is scheduled to perform transmission or reception: power, beam, port.

The first node negotiates with the second node. When the second node performs a multiplexing operation, the operation performed by the first type unit of the second node or the second type unit of the second node corresponds to at least one of power, beam, and port one.

The first node configuration and/or instructions when the second node performs multiplexing operations, the operation performed by the first type unit of the second node or the second type unit of the second node corresponds to at least one of power, beam, and port .

The power of the first type unit of the second node includes at least one of the following: the uplink transmission power of the first type unit of the second node, and the downlink reception power of the first type unit of the second node. The power of the second type unit of the second node includes at least one of the following: the power when the second type unit of the second node sends data to the third node (that is, the child node of the second node), and the second type of the second node The received power when the unit receives data from the third node.

The beam of the first type unit of the second node includes at least one of the following: the uplink transmission beam of the first type unit of the second node, and the downlink reception beam of the first type unit of the second node. The beam of the second type unit of the second node includes at least one of the following: the uplink received beam of the second type unit of the second node, and the downlink transmission beam of the second type unit of the second node.

The port of the first type unit of the second node includes at least one of the following: the uplink transmission beam of the first type unit of the second node, and the downlink reception beam of the first type unit of the second node. The port of the second-type unit of the second node includes at least one of the following: a downstream transmission port of the second-type unit of the second node, and an upstream receiving port of the second-type unit of the second node.

The negotiation procedure between the first node and the second node may include: the first node receives the recommended value or recommended configuration of at least one of the power, beam, and port corresponding to the multiplexing operation reported by the second node, and the first node Configure and/or instruct at least one of the power, beam, and port corresponding to the multiplexing operation performed by the second node.

In an example, the first node may configure one or more beam combinations for the second node, one beam combination corresponds to one or more time units of beam information, and one combination corresponds to one index.

The aforementioned beam information may include at least one of the following:

The receiving beam corresponding to the first type unit of the second node; the transmitting beam corresponding to the first type unit of the second node; the receiving beam corresponding to the second type unit of the second node; the transmitting beam of the second type unit corresponding to the second node Beam.

The above-mentioned transmitting or receiving beam may indicate the corresponding transmitting or receiving beam information by associating the corresponding reference signal. In NR, a transmission configuration indicator (Transmission Configuration Indicator, TCI) uses an associated reference signal to indicate a receiving beam, and a scheduling request indication (Scheduling Request Indication, SRI) uses an associated reference signal to indicate a transmit beam.

For example, the first node uses the TCI in the NR to indicate the beam combination of the second node, such as indicating the receiving beam of the first-type unit of the second node or the second-type unit of the second node; the first node uses the SRI in the NR to indicate The beam combination of the second node, for example, indicates the transmission beam of the first type unit of the second node or the second type unit of the second node.

In an example, the first node may configure one or more port combinations for the second node, one port combination corresponds to one or more time units of port information, and one combination corresponds to one index.

The aforementioned port information includes at least one of the following:

The receiving port of the first type unit corresponding to the second node; the sending port of the first type unit corresponding to the second node; the receiving port of the second type unit corresponding to the second node; the sending port of the second type unit corresponding to the second node port.

The first node may also configure one or more beam combinations for a multiplexing operation of the second node. The beam combinations may indicate to the second node that when the second node performs the corresponding multiplexing operation on the corresponding time unit, Send or receive beam. The transmitting or receiving beam can be understood as the transmitting beam or the receiving beam of the first type unit or the second type unit of the second node.

For example, the first node may configure one or more beam combinations to the case A multiplexing operation mode of the second node. The meaning of a beam combination of the multiplexing operation mode of Case A is to indicate the second node. When the second node performs the multiplexing operation of Case A, it corresponds to one of the first type unit or the second type unit of the second node. Multiple time units transmit or receive beams.

In an example, the first node may send a physical layer control signaling to the second node, the physical layer control signaling includes an indication field, the indication field is used to indicate an index, and an index indicates a beam combination, A combination corresponds to beam information of one or more time units.

The beam information includes at least one of the following:

The receiving beam of the first type unit of the second node; the transmitting beam of the first type unit of the second node; the receiving beam of the second type unit of the second node; the transmitting beam of the second type unit of the second node.

The first node sends a physical layer control signaling to the second node to indicate the beam information of one or more time units. The beam information can indicate the corresponding beam information of the second node in one or more time units, or indicate When the second node performs the corresponding multiplexing operation on the corresponding one or more time units, the corresponding beam information.

For example, the first node is the second node indicating the beam combination of one or more time units of Case A's multiplexing operation, which means that when the second node executes Case A on one time unit, the first type of unit of the second node Or the transmitting or receiving beam corresponding to the second type of unit.

In an example, the first node may determine the reference subcarrier interval corresponding to the multiplexing operation of the second node in the following manner, for example, the first node and the second node negotiate, or the first node and the second node agree on a reference The subcarrier interval, or the first node configures or instructs the reference subcarrier interval.

The reference subcarrier interval corresponding to the multiplexing operation configured by the first node for the second node may be used to determine the duration of a time unit corresponding to the multiplexing operation. For example, the value of the sub-carrier interval in NR is represented by u, and the sub-carrier interval is 15*2^ ^u . After the sub-carrier interval is determined, the one corresponding to the Cyclic Prefix (CP) type can be determined The duration of the OFDM symbol can then be used to determine the duration of other time units.

Exemplarily, the first node may also configure the reference subcarrier interval for the second node through signaling, and the signaling may include high-level signaling, or MAC CE, or physical layer signaling. The high-level signaling may be at least one of RRC signaling and F1 Application Protocol (F1 Application Protocol, F1-AP) signaling. The physical layer signaling can be an indication through the DCI, and the direct indication can be to encode u. In the DCI, a codeword is indicated through a field, and the codeword can represent a value of u. The value of u can be limited through high-level signaling or MAC CE signaling. For example, the value range of u is [0, 1, 2, 3, 4], and the first node limits the value range of u to [0, 1, 2, 3] through higher layer signaling or MAC CE signaling. A field of DCI contains two or more bits, which can be used to indicate that 4 codewords respectively represent one of [0, 1, 2, 3].

Optionally, the reference subcarrier interval agreed upon by the first node and the second node may be at least one of the following: the subcarrier interval of the first type unit of the second node, the subcarrier interval of the second type unit of the second node, The minimum or maximum value of the subcarrier interval of the first type unit of the second node and the subcarrier interval of the second type unit of the second node. Wherein, the subcarrier interval of the first type unit of the second node is the activated subcarrier interval or the reference subcarrier interval of the first type unit of the second node, and the subcarrier interval of the second type unit of the second node is the second node The activation subcarrier interval of the second type unit of the second node, or the activation subcarrier interval of the cell corresponding to the second type unit of the second node, or the subcarrier interval of the cell corresponding to the second type unit of the second node, or the second node The reference subcarrier interval of the cell corresponding to the second type of unit.

In an example, the first operation combination of the first node configuration may be at least one of the following: FDM, SDM, FDM and SDM, no-limited. The frequency domain resources corresponding to the IAB-DU of the second node and the IAB-MT of the second node are orthogonal resources. FDM can be understood as the frequency division of the second node to perform multiplexing operations, and SDM can mean that the second node performs space division. Multiplex operation, No-limited can mean that the second node is not limited to frequency or space division to perform multiplex operations. For example, if the second node performs Case A frequency and space division in a time unit, it means that IAB-DU performs the transmission operation, and IAB-MT also performs the transmission operation. The frequency domain resources 1 and IAB-DU occupied by IAB-DU Frequency domain resources occupied by MT 2 are orthogonal in frequency domain. The space beam 1 corresponding to the IAB-DU transmission and the space beam 2 corresponding to the IAB-MT transmission will not cause or have little interference with each other. Among them, whether the interference is caused or whether the interference is small can be judged through the threshold value. The threshold value is a preset value, or agreed by both parties, or corresponds to the interference observation reported by the receiver.

In an example, the first node can be configured with one or more first operation combinations, and this first operation combination corresponds to one or more time units. The multiplexing style of a time unit can have various meanings as shown in Table 5. . table 5 Index value meaning Index 0 SDM Index 1 FDM Index 2 FDM and SDM Index 3 No-limited

The above Table 5 is only an exemplary description, and does not limit the content in the table. For example, part of the content in Table 5 above can be used as Table 5.

In an example, the first node may send a physical layer control signaling to the second node. The physical layer control signaling includes an indication field, and the indication field indicates an index. The index may inform the second node of a combination, and the combination may indicate at least one of the following for the second node:

One or more time units of the second node; availability of one time unit in one or more time units of the second node; multiplex operation of one time unit in one or more time units of the second node; The availability and multiplexing operation of one time unit among one or more time units of the two nodes.

Multiplex operations include TDM, Case A, Case B, Case C, Case D, no-TDM, among which Case A, Case B, Case C, Case D, and no-TDM include SDM, FDM, SDM and FDM, no-limited.

For example, Case A of FDM indicates that the second node performs the multiplexing operation of Case A frequency division, and Case B of FDM and SDM indicates that the second node performs the multiplexing operation of Case B frequency division and space division, for example, IAB-MT Reception is performed on beam 1 and frequency domain resource 1, and IAB-DU is performed on beam 2 and frequency domain resource 2.

In an example, the first node configures and/or indicates a first operation combination of one or more time units of the second node, and the time unit may be determined according to the time unit of the IAB-MT or IAB-DU of the second node.

The first time unit corresponding to the effective signaling of the first node's indication and/or configuration can be determined in one of the following ways: it will be exchanged with the time unit at which the IAB-MT receives the first node's configuration and/or signaling. The previous time unit among the time units corresponding to the stacked IAB-DU is determined to be the first time unit corresponding to the multiplexing operation combination; and, if the IAB-MT of the second node receives the configuration and/or instruction of the first node The time unit of the signaling is included in the time unit of the IAB-DU of the second node determined by the multiplexing operation reference subcarrier interval, and then the time unit of the IAB-DU of the second node is determined to correspond to the multiplexing operation combination The first unit of time.

Optionally, the first time unit for the signaling indicated and/or configured by the first node to take effect may be the time unit of one or more time units configured and/or indicated by the first node received by the IAB-MT of the second node The time unit corresponding to the effective multiplexing operation combination. The second node determines the first time unit for the multiplexing operation combination to take effect according to the time unit of the IAB-MT of the second node, that is, the time when the IAB-MT receives the multiplexing operation combination The unit corresponds to the first time unit in effect.

In an example, the first node may also receive a desired first operation combination reported by the second node, and the desired first operation combination may include one or more time units of multiplexing operations. The multiplex operation of a time unit may include one or more of TDM, Case A, Case B, Case C, Case D, no-TDM, FDM, SDM, FDM and SDM, no-limited.

Optionally, the first node may receive the desired first operation combination corresponding to several time units reported by the second node, and the first operation combination reported by the second node may be as shown in FIG. 7. Alternatively, the first node may also receive the expected first operation combination corresponding to the IAB-DU reported by the second node; or, receive the expected first operation combination of the corresponding DU cell reported by the second node; or, receive the second node The reported first operation combination corresponding to the IAB-MT component carrier (Component Carrier) and IAB-DU cell pair ({MT CC, DU cell}pair).

Optionally, the first node may also receive the desired multiplexing operation reported by the second node according to the resource type. For example, when the first node receives the DU resource reported by the second node and expects the corresponding multiplex operation to be multiplex operation 1, where the direction 1 can be at least one of the following: DL, F, UL, multiplex Operation 1 can be one or more of TDM, Case A, Case B, Case C, Case D, no-TDM, FDM, SDM, FDM and SDM, no-limited; or, the first node can receive the second node The reported multiplexing operation expected when the DU resource is the direction 1 and the IAB-MT resource is the direction 2; or, the first node can receive the expected multiplexing when the IAB-MT resource is the direction 1 reported by the second node operate. Wherein, the DU resource may refer to the resource of one IAB-DU or the resource of one cell corresponding to one IAB-DU, and the resource of IAB-MT may refer to the resource of the corresponding IAB-MT or the resource of one component carrier of the IAB-MT.

In an example, the first node may also receive the multiplexing capability reported by the second node. The multiplexing capability is {FDM, SDM, FDM and SDM, no-limited} or {FDM, SDM, FDM and SDM, no- limited} and {TDM, Case A, Case B, Case C, Case D, no-limited} combination.

FIG. 13 is a flowchart of a multiplexing operation method provided by an embodiment of this specification. The method may be applied to the fourth node. As shown in FIG. 13, the method may include but is not limited to the following steps:

S1301: Configure a first operation combination.

The fourth node may be a CU node or a host node, and it and the first node may be adjacent upper and lower nodes, or there may also be a multi-hop node between the fourth node and the first node. Among them, the fourth node and the first node may coexist in the same device, or may belong to different independent devices. The first operation combination of the fourth node configuration may include the first operation combination of the second node.

Optionally, the fourth node may configure or notify the first node of the first operation combination of the second node, and the first node may indicate the first operation combination to the second node, or may not indicate the first operation combination.

Exemplarily, the first operation combination includes any one of the following: a combination of multiple operations, a combination of multiple operations and a frame structure, and a combination of multiple operations and availability.

The embodiment of this specification provides a multiplexing operation method. The fourth node configures the first operation combination of the second node, and the fourth node configures or informs the first node of the first operation combination of the second node, which can be implemented The first node and the second node have a unified understanding of the combination of multiple operations.

Exemplarily, the multiplex operation combination means the multiplex operation on one or more time units of the second node, and the multiplex operation includes TDM, no-TDM, SDM, FDM, multiplex mode one, multiplex mode two, Multiplex mode three, multiplex mode four, unlimited no-limited, among them, multiplex mode one can be understood as the case of case A above, multiplex mode two can be understood as the case of case B, multiplex Method 3 can be understood as the case of Case C, and mode 4 of multiplexing can be understood as the case of Case D.

The combination of the multiplexing operation and the frame structure indicates the multiplexing operation on one or more time units of the second node, and indicates the frame structure of one or more time units of the second node.

The combination of multiplexing operation and availability indicates the multiplexing operation on one or more time units of the second node, and indicates the availability of one or more time units of the second node.

For example, the frame structure of IAB-MT in a time unit includes downlink (DownLink, DL) and uplink (UpLink, UL), the frame structure of IAB-DU includes UL and DL, and the DL resources of IAB-MT and IAB-DU UL resources overlap or partially overlap, and the UL resources of IAB-MT overlap or partially overlap the DL resources of IAB-DU. If the first node indicates the multiplex operation combination corresponding to this time unit as Case A and Case B, It means that the second node can perform Case B multiplexing when the DL resource of the IAB-MT overlaps or partially overlaps the UL resource of the IAB-DU, and the UL resource of the second node overlaps the DL resource of the IAB-DU. Or partially overlap and partially perform Case A multiplexing. If the multiplexing operation corresponding to a time unit is TDM, it means that the second node executes the IAB-MT and IAB-DU operations in this time unit time-divisionally. If the multiplexing operation corresponding to a time unit is no-TDM, it indicates that the operations that the second node can perform in this time unit include at least one of the following: IAB-MT and IAB-DU of the second node can be simultaneously unrestricted To perform operations, the IAB-MT and IAB-DU of the second node may perform corresponding multiplexing operations according to the resource transmission directions of the IAB-MT and IAB-DU.

In an example, the first operation combination of the fourth node configuration can be implemented in the following ways:

For example, the fourth node configures the first operation combination to the second node or the first node through F1 application layer protocol F1-AP signaling. That is, the fourth node can configure the first operation combination of the second node without instructing the first operation combination. The second node determines the first operation combination from the configured combinations in a preset or agreed manner, for example, the agreed minimum ID corresponds to The combination of is an effective combination; or, the fourth node sends the configured first operation combination to the first node through F1-AP signaling, and the first node indicates the configured first operation combination to the second node.

In an example, in a case where the first operation combination includes the operation combination of the second node, the foregoing step S1301 may include:

Configure the first operation combination of the second node; or configure the first operation combination of the second type unit of the second node; or configure the first operation combination of the cell corresponding to the second type unit of the second node; or, configure The first operation combination of the component carrier corresponding to the first type unit of the second node and the cell pair corresponding to the second type unit of the second node (for example, MT CC and DU cell pair ({MT CC, DU cell} pair)).

The cell corresponding to the second type unit can be one cell or multiple cells. The first node can configure one or more first operation combinations to the cells of the second type unit of the second node, and the configured multiplexing on a time unit The operation can be one or more of TDM, Case A, Case B, Case C, Case D, no-TDM, and no-limited. Exemplarily, the first operation combination of multiple time units of the second node configured by the fourth node may be as shown in FIG. 8.

For example, the fourth node can use F1-AP signaling as the second node or the IAB-DU of the second node or the DU cell of the second node or a pair of MT CC and DU cell of the second node ({MT CC, DU cell }pair) Configure one or more first operation combinations, the first operation combination represents one or more time units of multiplex operations, multiple operations on a time unit can be TDM, Case A, Case B, Case One or more of C, Case D, no-TDM, and no-limited.

For example, the fourth node can notify or configure the second node or the IAB-DU of the second node or the DU cell of the second node or a pair of MT CC and DU cell of the second node for the first node through F1-AP signaling. ({MT CC, DU cell}pair) one or more first operation combinations, the first operation combination represents one or more time units of multiplex operations, multiple operations on a time unit can be TDM, One or more of Case A, Case B, Case C, Case D, no-TD, and no-limited.

The configuration example of the fourth node configuring multiple first operation combinations for the DU cell of the second node may be shown in FIG. 8, and the configuration example of configuring one first operation combination for one cell may be shown in FIG. 7. Or, the fourth node configures the first node with multiple first operation combinations on the DU cell of the second node as shown in FIG. 8, and the configuration example for configuring one first operation combination for one cell may be as shown in FIG. 7. Shown.

The second node may include multiple cells, and correspondingly, the fourth node may configure one or more first operation combinations for the multiple cells. Alternatively, the fourth node may also configure one or more first operation combinations for the second node, and the one or more first operation combinations may be applied to all cells of the second node. Alternatively, the fourth node may configure one or more first operation combinations for one DU of the second node, and the configured first operation combinations may be applied to all DU cells corresponding to one DU of the second node. For example, when the fourth node configures one or more first operation combinations for the IAB-DU of the second node, the one or more first operation combinations may be applied to all cells corresponding to one IAB-DU.

When the fourth node configures one or more first operation combinations for the second node, the one or more first operation combinations can be applied to all DU cells corresponding to the second node.

In an example, the first operation combination configured above may include an offset, and the offset is used to indicate the time offset for the notification signaling to take effect, and the notification signaling is the information used to indicate the first operation combination. make. Exemplarily, the offset may include at least one of the following: a radio frame, a subframe, a time slot, and an OFDM symbol.

Optionally, the first operation combination configured by the fourth node for the second node may indicate the multiplexing operation in the following ways:

The one or more time units corresponding to the first operation combination is the period of the first operation combination, that is, the first operation combination functions periodically. For example, if a first operation combination corresponds to several time units, the multiplex operations corresponding to these several time units may be periodically effective until the fourth node is configured for the second node again, and/or indicates the first operation combination.

Alternatively, the one or more time units corresponding to the first operation combination is the number of time units indicated by the first operation combination, and the first operation combination only indicates the operation combination of the corresponding number of time units and does not need to be repeated.

Alternatively, the fourth node determines the number of valid times of the first operation combination in a configured or agreed manner. That is, the first operation combination works repeatedly several times. For example, if the fourth node configures the number of valid times of the first operation combination to be the number 1, then the first operation combination will be repeatedly valid once.

In an example, the fourth node may configure the first combination, the second combination, and the third combination for the second node. Exemplarily, the fourth node may configure one or more first combinations for the second node, and the first combination may be an availability combination, which may correspond to an index. Similarly, the fourth node may configure one or more second combinations for the second node, or configure one or more third combinations for the second node. Among them, the second combination may be a combination of multiple operations, a second combination may correspond to one index, and the third combination may correspond to a first combination index and a second combination index. The values of the first combination index and the second combination index may be the same or different.

For example, the fourth node configures a first combination for the second node, and its index value is index 1, which represents the availability indication of one or more time units. The fourth node configures a second combination for the second node, and its index value is index 2, which represents a combination of multiple operations in one or more time units. The fourth node configures a third combination for the second node, and its index value is index 3, which represents the availability combination of index 1 and the multiplexing operation combination of index 2. When the fourth node informs or indicates the third combination of index 3, it means that the second node is instructed to determine the availability combination of one or more time units corresponding to the first combination of index 1 according to the third combination of index 3, and determine The second combination of index 2 corresponds to the multiplex operation combination of one or more time units.

In an example, the fourth node may configure the time domain distribution of TDM and no-TDM for the second node. Illustratively, the time domain distribution of TDM and no-TDM of the second node may be as shown in FIG. 10. The second node, or one IAB-DU of the second node, or one DU cell of the second node can correspond to one or more combinations of availability and multiplexing operation, and one combination of the combination of availability and multiplexing operation corresponds to 0 Availability of one or several time units, and 0 or a certain number of multiple time units.

As shown in Figure 11, the fourth node can configure one or more combinations of time units corresponding to TDM and no-TDM through signaling, and each combination corresponds to a combination ID. FIG. 11 shows multiple combination IDs, and each combination ID can correspond to one or more time units. If the time unit corresponds to TDM, the indication content of the corresponding time unit in the combination ID is an availability indicator, which can be one of the items in Table 2; if the time unit corresponds to no-TDM, the corresponding time unit in the combination ID The instruction content is a multi-task operation combination instruction, and the multi-task operation combination can be one of Table 1 or Table 3. Wherein, the granularity of the time unit indicating the multiplexing operation combination and the granularity of the time unit indicating the availability may be the same or different.

The fourth node may also configure one or more combinations for the second node. The combinations may be used to indicate the multiplexing operation of the time unit of the frame structure direction determination, or indicate the frame structure of the time unit of F. Among them, the frame structure corresponds to the 57 states in Table 11.1.1-1 of 3GPP TS38213-g20 and the 41 states in Table 14-2. One state indicates the frame structure of one time slot, and the multiplexing operation of one time unit corresponds to the remaining Several of the 158 states, the index range is 97~254 in TS38213-g20 table 11.1.1-1, corresponding to the multiple operations corresponding to the meanings in Table 1.

For the IAB-MT frame structure configuration in FIG. 12, the second node can perform multiplexing operations according to the first operation combination indicated in Table 1. For example, the fourth node configures the second node to configure the multiplex operation combination and frame structure combination with a combination ID of 1 as [index 2 index 2 frame structure index 1 index 1 index 1], where index 1 corresponds to index 1 in Table 1. Corresponding meaning, index 2 corresponds to the meaning of index 2 in Table 1, and frame structure index 1 corresponds to the indexes in the range of 0~96 and 255 in Table 11.1.1-1 of TS38213-g20. Alternatively, the second node may also perform multiplexing operations according to the first operation combination indicated in Table 4. For example, the fourth node configures the multiplex operation combination and frame structure combination with the combination ID of 1 for the second node as [index 17 index 17 frame structure index 1 index 57 index 57].

In an example, when the transmission direction indicated by the first operation combination is inconsistent with the transmission direction of the time unit of the unit of the first type of the second node, the indication of the first operation combination is an invalid indication; When the transmission direction indicated by an operation combination is inconsistent with the transmission direction of the time unit of the second type unit of the second node, the indication of the first operation combination is an invalid indication.

In an example, the fourth node configures a combined ID for the second node, and the combined ID corresponds to a multiplexing operation of one or more time units. If the multiplexing operation of a time unit corresponding to the multiplexing operation is inconsistent with the semi-static transmission direction (or dynamic transmission direction) of the IAB-MT and/or IAB-DU resources of this time unit of the second node, then the fourth The multiplexing operation configured by the node changes the resource transmission direction of the IAB-MT and/or IAB-DU of the time unit.

Exemplarily, the frame structure of 5 time units of IAB-MT of the second node is configured as [DL DL DL F UL], and the frame structure of 5 time units of IAB-DU of the second node is configured as [DL F UL UL UL]. For the third time unit, the operation that IAB-MT can perform is downlink reception, and the operation that IAB-DU can perform is uplink reception, that is, the operation that can be performed in the third time unit is Case B's multiplexing. The third time unit corresponding to the first operation combination configured by the node for the second node is the multiplexing operation of Case C, that is, the IAB-MT is instructed to perform downlink reception, and the IAB-DU performs downlink transmission. Then the first operation combination corresponds to The multiplexing operation of Case C changes the transmission direction of the IAB-DU corresponding to the third time unit to DL.

In an example, the fourth node configures or indicates the first operation combination of one or more time units for the second node, and if the resource transmission direction of the IAB-MT time unit of the second node corresponding to the combination is F, then The multiplexing operation of the corresponding time unit and the transmission direction of the IAB-MT configured or instructed by the fourth node.

Exemplarily, it is assumed that the frame structure of one time unit of the IAB-MT of the second node is configured as F, and if the frame structure of the time unit corresponding to the IAB-DU of the second node is configured as UL. For this time unit, the operation of IAB-MT is flexible, and the operation of IAB-DU is uplink reception. If the time unit configured or instructed by the fourth node for the second node is the multiplexing operation of Case B, then the IAB-MT of the second node performs downlink reception, and the IAB-DU can perform uplink reception at the same time.

In an example, when the resource transmission direction of the first type unit of the second node is inconsistent with the transmission direction indicated by the first operation combination, the first type unit of the second node is determined according to the notification signaling that is sent later. And/or, when the resource transmission direction of the second type unit of the second node is inconsistent with the transmission direction indicated by the first operation combination, determine the second node’s second node according to the notification signaling sent later The transmission direction of the second type unit; wherein, the notification signaling with a later transmission time includes the signaling indicating the first operation combination and the signaling indicating the resource direction of the second node.

For example, the fourth node configures the first operation combination of one or more time units for the second node, if the combination corresponds to the resource transmission direction of the IAB-MT time unit of the second node as F, and the F resource is indicated as In direction 1, the direction of the time unit of the IAB-MT corresponding to the multiplexing operation is direction 2, and the transmission direction of the F resource of the IAB-MT is determined according to the subsequent indication signaling. Wherein, direction 1 can be DL or UL, and direction 2 can also be DL or UL.

Exemplarily, the direction of one time unit of the IAB-MT of the second node is F, and at time 1, the second node receives a DCI format 2_0 indicating that the direction of this time unit is UL. At time 2 (time 2 is later than time 1), the fourth node configures this time unit as a multiplexing operation of Case B, and then the direction of this time unit of IAB-MT is determined as DL based on the multiplexing operation.

In an example, the timing of the time unit corresponding to the first operation combination is determined according to the timing of the time unit of the cell corresponding to the second type unit of the second node; or, the timing of the time unit corresponding to the first operation combination is determined according to the second node The timing determination of the time unit of the component carrier of the first type unit.

In an example, in a case where a multiplex operation on a time unit corresponds to the elastic transmission of type F resources of the first type unit of the second node, the first operation combination indicates the transmission direction of the type F resources; and/or , In the case that the multiplex operation in one time unit corresponds to the F-type resource of the second-type unit of the second node, the first operation combination indicates the transmission direction of the F-type resource.

Or, in the case that the multiplex operation in one time unit corresponds to the flexible transmission of type F resources of the first type unit of the second node, the first operation combination indicates that when the second node performs the multiplex operation, the F type resource And/or, in the case that a multiplex operation in a time unit corresponds to the elastic transmission of type F resources of the second type unit of the second node, the first operation combination indicates that multiple operations are performed at the second node During work operation, the transmission direction of the F-type resource.

In an example, the resource transmission direction of one time unit of the IAB-DU of the second node is F, and the fourth node configures the second node with multiplexing operations of this time unit. The multiplexing operation configured by the fourth node corresponds to the direction of this time unit to change the direction of the IAB-DU of this time unit, or when the IAB-MT is scheduled in the time unit of the corresponding IAB-DU, the operations that the IAB-DU can perform .

For example, the frame structure of one time unit of the IAB-MT of the second node is configured as DL, if the frame structure of the time unit of the IAB-DU corresponding to the second node is configured as F. For this time unit of the IAB-DU, the multiplexing operation of the IAB-DU is F, that is, the IAB-DU can use the resource to schedule the third node to receive downlink or to schedule the third node to transmit uplink. When the fourth node configures this time unit for the second node as the multiplexing operation of Case B, that is, if the second node performs multiplexing, then in the corresponding IAB-DU time unit, the IAB-DU can perform uplink reception, or The F of the IAB-DU is judged to be UL.

The relationship between the corresponding IAB-DU time unit and the time unit corresponding to IAB-MT is at least one of the following:

The time unit corresponding to IAB-DU completely overlaps with the scheduled time unit of IAB-MT; the time unit corresponding to IAB-DU partially overlaps the scheduled time unit of IAB-MT; the time unit corresponding to IAB-DU overlaps with IAB-MT One of the scheduled time units includes the other in the time span; the intersection of the time unit corresponding to the IAB-DU and the scheduled time unit of the IAB-MT.

In an example, if the resource transmission direction of the time unit of the IAB-DU of the second node is F, the fourth node is the first operation combination configured by the second node. The F resource of the IAB-DU of the second node is indicated by the fourth node as direction 1. The first operation combination configured by the fourth node corresponds to the direction of the IAB-DU corresponding to the multiplex operation of this time unit is direction 2, then IAB- The direction of the DU is judged to be direction 2.

Optionally, the F resource of the IAB-DU of the second node is indicated as direction 1 by the fourth node at time 1, and the first operation combination configured by the fourth node at time 2 corresponds to the IAB-DU corresponding to the multiplex operation of this time unit. The direction of DU is direction 2. If time 2 is later than time 1, the direction of the time unit corresponding to IAB-DU is direction 2; if time 2 is earlier than time 1, the direction of the time unit corresponding to IAB-DU is direction 1. . If time 1 and time 2 belong to the same time or the same time within the error range, the transmission directions corresponding to the two signalings do not conflict.

Optionally, the F resource of the IAB-DU of the second node is indicated as direction 1 by the fourth node at time 1, and the first operation combination configured by the fourth node at time 2 corresponds to the IAB-DU corresponding to the multiplex operation of this time unit. The direction of the DU is direction 2, then direction 1 and direction 2 do not conflict.

Optionally, in an example, the first operation combination may indicate the transmission direction of the second type unit of the second node when the second node performs multiplexing operation, and/or the transmission direction of the first type unit of the second node Transmission direction.

For example, the fourth node configures the operations that the IAB-DU can perform in the corresponding time unit when the IAB-MT is scheduled.

The frame structure of one time unit of the IAB-MT of the second node is configured as DL, if the frame structure of the time unit of the IAB-DU corresponding to the second node is configured as F. For this time unit of the IAB-DU, the operation of the IAB-DU is flexible, that is, the IAB-DU can use this resource to schedule the third node for downlink reception or schedule the third node for uplink transmission. When the fourth node configures this time unit for the second node as the multiplexing operation of Case B, that is, if the second node performs multiplexing, then the time unit of the corresponding IAB-DU of the second node, the IAB-DU of the second node The DU can perform uplink reception, or the F of the IAB-DU can be updated to the direction corresponding to the multiplexing operation. For example, update F of IAB-DU to UL.

In an example, the fourth node configures one or more time unit multiplexing operations to the second node, and the one time unit multiplexing action means that the second node executes according to at least one of the following factors corresponding to the multiplexing operation Transmit or receive: power, beam, port; or, a multiplexing action of one time unit means that the second type unit of the second node schedules the third node according to at least one of the following factors corresponding to the multiplexing operation: power, beam, port.

The fourth node negotiates with the second node. When the second node performs a multiplexing operation, the operation performed by the first type unit of the second node or the second type unit of the second node corresponds to at least one of power, beam, and port one.

The fourth node configuration: When the second node performs a multiplexing operation, the operation performed by the first type unit of the second node or the second type unit of the second node corresponds to at least one of power, beam, and port.

The power of the first type unit of the second node includes at least one of the following: the uplink transmission power of the first type unit of the second node, and the downlink reception power of the first type unit of the second node. The power of the second type unit of the second node includes at least one of the following: the power when the second type unit of the second node sends data to the third node (that is, the child node of the second node), and the second type of the second node The received power when the unit receives data from the third node.

The beam of the first type unit of the second node includes at least one of the following: the uplink transmission beam of the first type unit of the second node, and the downlink reception beam of the first type unit of the second node. The beam of the second type unit of the second node includes at least one of the following: the uplink received beam of the second type unit of the second node, and the downlink transmission beam of the second type unit of the second node.

The port of the first type unit of the second node includes at least one of the following: the uplink transmission beam of the first type unit of the second node, and the downlink reception beam of the first type unit of the second node. The port of the second-type unit of the second node includes at least one of the following: a downstream transmission port of the second-type unit of the second node, and an upstream receiving port of the second-type unit of the second node.

The negotiation procedure between the fourth node and the second node may include: the fourth node receives the recommended value or recommended configuration of at least one of the power, beam, and port corresponding to the multiplexing operation reported by the second node, and the fourth node Configure at least one of the power, beam, and port corresponding to the multiplexing operation performed by the second node.

The foregoing operation of scheduling the third node by the second node includes scheduling the third node for uplink transmission or downlink reception.

In an example, the fourth node may configure one or more beam combinations for the second node, one beam combination corresponds to one or more time units of beam information, and one combination corresponds to one index.

The aforementioned beam information may include at least one of the following:

The receiving beam corresponding to the first type unit of the second node; the transmitting beam corresponding to the first type unit of the second node; the receiving beam corresponding to the second type unit of the second node; the transmitting beam of the second type unit corresponding to the second node Beam.

The above-mentioned transmitting or receiving beam may indicate the corresponding transmitting or receiving beam information by associating the corresponding reference signal. In NR, TCI uses an associated reference signal to indicate a receiving beam, and SRI uses an associated reference signal to indicate a transmitting beam.

For example, the fourth node uses the TCI in the NR to indicate the beam combination of the second node, such as indicating the receiving beam of the first-type unit of the second node or the second-type unit of the second node; the fourth node uses the SRI in the NR to indicate The beam combination of the second node, for example, indicates the transmission beam of the first type unit of the second node or the second type unit of the second node.

In an example, the fourth node may configure one or more port combinations for the second node, one port combination corresponds to one or more time units of port information, and one combination corresponds to one index.

The aforementioned port information includes at least one of the following:

The receiving port of the first type unit corresponding to the second node; the sending port of the first type unit corresponding to the second node; the receiving port of the second type unit corresponding to the second node; the sending port of the second type unit corresponding to the second node port.

The fourth node may also configure one or more beam combinations for a multiplexing operation of the second node. The beam combinations may indicate to the second node that when the second node performs the corresponding multiplexing operation on the corresponding time unit, Send or receive beam. The transmitting or receiving beam can be understood as the transmitting beam or the receiving beam of the first type unit or the second type unit of the second node.

For example, the fourth node may configure one or more beam combinations to the case A multiplex operation mode of the second node. The meaning of a beam combination of the multiplexing operation mode of Case A is to indicate the second node. When the second node performs the multiplexing operation of Case A, it corresponds to one of the first type unit or the second type unit of the second node. Multiple time units transmit or receive beams.

In an example, the first operation combination of the fourth node configuration may be at least one of the following: FDM, SDM, FDM and SDM, no-limited. The frequency domain resources corresponding to the IAB-DU of the second node and the IAB-MT of the second node are orthogonal resources. FDM can be understood as the frequency division of the second node to perform multiplexing operations, and SDM can mean that the second node performs space division. Multiplex operation, No-limited can mean that the second node is not limited to frequency or space division to perform multiplex operations. For example, if the second node performs Case A frequency and space division in a time unit, it means that IAB-DU performs the transmission operation, and IAB-MT also performs the transmission operation. The frequency domain resources 1 and IAB-DU occupied by IAB-DU Frequency domain resources occupied by MT 2 are orthogonal in frequency domain. The space beam 1 corresponding to the IAB-DU transmission and the space beam 2 corresponding to the IAB-MT transmission will not cause or have little interference with each other. Among them, whether the interference is caused or whether the interference is small can be judged through the threshold value. The threshold value is a preset value, or agreed by both parties, or corresponds to the interference observation reported by the receiver.

In an example, the fourth node can be configured with one or more first operation combinations, and the first operation combination corresponds to one or more time units. The multiplexing style of one time unit can have various meanings as shown in Table 5. .

In an example, the fourth node may also receive the desired first operation combination reported by the second node, and the desired first operation combination may include one or more time units of multiplexing operations. The multiplex operation of a time unit may include one or more of TDM, Case A, Case B, Case C, Case D, no-TDM, FDM, SDM, FDM and SDM, no-limited.

Optionally, the fourth node may receive the desired first operation combination corresponding to several time units reported by the second node, and the first operation combination reported by the second node may be as shown in FIG. 7. Alternatively, the fourth node may also receive the expected first operation combination corresponding to the IAB-DU reported by the second node; or, receive the expected first operation combination of the corresponding DU cell reported by the second node; or, receive the second node The reported first operation combination corresponding to the IAB-MT component carrier (Component Carrier) and IAB-DU cell pair ({MT CC, DU cell}pair).

Optionally, the fourth node may also receive the desired multiplexing operation reported by the second node according to the resource type. For example, when the fourth node receives the DU resource reported by the second node as direction 1, it expects the corresponding multiplex operation to be multiplex operation 1, where direction 1 can be at least one of the following: DL, F, UL, multiplex Operation 1 can be one or more of TDM, Case A, Case B, Case C, Case D, no-TDM, FDM, SDM, FDM and SDM, no-limited; or, the fourth node can receive the second node The reported multiplexing operation expected when the DU resource is the direction 1 and the IAB-MT resource is the direction 2; or the fourth node can receive the expected multiplexing when the IAB-MT resource is the direction 1 reported by the second node operate. Wherein, the DU resource may refer to the resource of one IAB-DU or the resource of one cell corresponding to one IAB-DU, and the resource of IAB-MT may refer to the resource of the corresponding IAB-MT or the resource of one component carrier of the IAB-MT.

FIG. 14 is a flowchart of a multiplexing operation method provided by an embodiment of this specification. The method may be applied to the second node. As shown in FIG. 14, the method may include but is not limited to the following steps:

S1401. The second node obtains the first operation combination.

As shown in Figure 1, the second node may be a child node of the first node, and the first operation combination obtained by the second node may include any of the following: multiplex operation combination, multiplex operation and frame structure combination, multiple Combination of workmanship and usability.

Optionally, the first operation combination obtained by the second node may be a combination configured by the first node or the fourth node, or may be a combination indicated by the first node.

S1402. The second node determines the transmission direction according to the first operation combination.

The above-mentioned transmission direction may be a transmission direction of one or more time units.

Optionally, the foregoing second node may also determine at least one of the transmission direction, the transmission direction and availability, the transmission direction, and the frame structure according to the acquired first operation combination.

Exemplarily, the foregoing multiplexing operation combination indicates the multiplexing operation on one or more time units of the second node, and the multiplexing operation includes TDM, no-TDM, SDM, FDM, multiplexing mode one, and multiplexing mode two. , Multiplex mode three, multiplex mode four, unlimited no-limited, among them, multiplex mode one can be understood as the case of case A above, multiplex mode two can be understood as the case of case b, more Working mode three can be understood as the case of Case C, and multi-working mode four can be understood as the case of Case D.

The combination of the multiplexing operation and the frame structure indicates the multiplexing operation on one or more time units of the second node, and indicates the frame structure of one or more time units of the second node.

The combination of multiplexing operation and availability indicates the multiplexing operation on one or more time units of the second node, and indicates the availability of one or more time units of the second node.

The embodiment of this specification provides a multiplexing operation method, which includes a second node acquiring a first operation combination, and the second node determines at least one of a transmission direction, a transmission direction and availability, a transmission direction, and a frame structure according to the first operation combination. one. In this way, the second node and its parent node can realize a unified understanding of the multiplexing operation combination, so that the second node can effectively perform the corresponding multiplexing operation according to the first operation combination.

In an example, the implementation manner of step S1401 may include the following implementation manners:

The second node obtains the combined ID of the first operation combination indicated by the first node through notification signaling, where the notification signaling includes any one of F1-AP signaling, RRC signaling, MAC CE, and DCI, and DCI includes DCI format 2_x, or DCI format 2_5, or DCI format 2_0.

Exemplarily, the aforementioned DCI may be interleaved and coded through the first RNTI.

The second node may determine the multiplex operation combination corresponding to several time units according to the received high-level signaling sent by the first node. Illustratively, a configuration example of multiplexing operation may be as shown in FIG. 7. For example, if the multiplexing operation corresponding to a time unit is Case A, the second node determines that it can perform the multiplexing operation of Case A of IAB-MT and IAB-DU in this time unit. If the multiplex operations corresponding to a time unit are Case A and Case D, the second node determines that it can perform the multiplex operations of Case A and Case D of IAB-MT and IAB-DU in this time unit. Or, the frame structure of IAB-MT in one time unit includes DL and UL, the frame structure of IAB-DU includes UL and DL, the DL resource of IAB-MT overlaps or partially overlaps the UL resource of IAB-DU, IAB- The UL resource of the MT overlaps or partially overlaps the DL resource of the IAB-DU, then the second node receives the signaling indicating that the multiplex operation combination of this time unit is indicated as Case A and Case B, which means that the second node can be in The DL resource of IAB-MT overlaps or partially overlaps the UL resource of IAB-DU to perform the multiplexing operation of Case B, and the UL resource of IAB-MT overlaps or partially overlaps the DL resource of IAB-DU to perform Case A. Multitasking operation.

Optionally, if the second node obtains the effective first operation combination indicated by the first node in the manner of MAC CE, the combination ID can be indicated through an indication field included in the MAC CE. Or, when the RRC signaling is used to indicate the effective first operation combination, the information element (Information Element, IE) field in the RRC may be used to indicate the combination ID.

Optionally, the implementation manner of step S1401 may further include that the second node obtains the combination ID of the first operation combination from the configured first operation combination in an agreed or preset manner. For example, a combination ID of a first operation combination is obtained from one or more configured combination IDs of the first operation combination.

Optionally, the first operation combination acquired by the second node may include an offset, and the second node may determine the effective time of the notification signaling according to the offset, and the notification signaling is the information used to indicate the first operation combination. Let, an offset corresponds to one or more multiple operation combinations. For example, if the second node receives the multiplexing indication configuration signaling at time K1, and the offset carried in the configuration signaling is delta, the second node determines that the multiplexing operation combination indication information starts to take effect at K1+delta.

The offset may include at least one of the following temporal granularity: radio frame, subframe, time slot, OFDM symbol.

In an example, the second node receives the first operation combination configured and/or indicated by the first node and/or the fourth node, and may determine the multiplexing operation of one or more time units according to at least one of the following, for example:

The one or more time units corresponding to the first operation combination is the period of the first operation combination, that is, the first operation combination functions periodically. For example, if a first operation combination corresponds to several time units, the multiplex operations corresponding to these several time units will take effect periodically until the first node or the fourth node configures the second node again and/or instructs the first operation combination .

Or, the number of one or more time units corresponding to the first operation combination is the number of time units corresponding to the first operation combination, the second node determines the operation combination of the corresponding number of time units, and the second node determines whether the first operation combination is not. Repeatedly work.

Alternatively, the second node determines the multiplexing operation according to the number of effective times of the first operation combination configured or received by the first node or the fourth node, that is, the first operation combination acts repeatedly several times. For example, if the number of valid times of the first operation combination configured by the second node received by the first node is 1, the second node determines that the first operation combination will be valid once repeatedly.

In an example, for a time unit, a time unit of the second node is not configured and/or a corresponding multiplexing operation is not instructed, then a predetermined multiplexing operation is executed.

One of the aforementioned agreed multiplexing operation modes is a fixed agreement of a preset multiplexing operation, and the preset multiplexing operation may include at least one of the following: TDM, Case A, Case B, Case C, Case D, and no-TDM. For example, the agreed multiplexing operation is TDM.

Alternatively, an agreed multiplexing operation mode may be to agree on a multiplexing operation according to the transmission direction corresponding to one time unit of the IAB-MT and/or IAB-DU of the second type of unit. For example, for a time unit, corresponding to the DL of the IAB-DU of the second node and the UL of the IAB-MT of the second node, it is agreed that the multiplexing operation of this time unit is Case A.

In an example, the foregoing step S1401 may include but is not limited to the following situations:

The second node obtains the first operation combination of the configured second node; or, the second node obtains the first operation combination of the second type unit of the configured second node; or, the second node obtains the configured second node The first operation combination of the cell corresponding to the second type unit of the second node; or, the second node obtains the configured component carrier corresponding to the first type unit of the second node and the cell pair corresponding to the second type unit of the second node ( {IAB-MT CC, IAB-DU cell}pair) is the first operation combination.

That is, the second node or the IAB-DU of the second node or a DU cell of the second node or the {IAB-MT CC, IAB-DU cell} of the second node can be configured with multiple sets of first operation combinations, and each first Operation combination corresponds to one or more time units, and each multiplex operation combination corresponds to a combination ID.

In an example, the second node receives the signaling sent by the first node or the fourth node, and determines a first operation combination of one or more time units, and the first operation combination represents a multiplex operation of one or more time units , The multiplexing operation in a time unit can be one or more of TDM, Case A, Case B, Case C, Case D, no-TDM, and no-limited.

Alternatively, the second node may receive the signaling sent by the first node or the fourth node, and determine the first operation combination of one or more DU cells corresponding to the second node.

For the same DU cell, the second node may receive one or more first operation combinations.

For example, the second node receives high-level signaling from the first node to determine the first operation combination of several time units of a DU cell. The configuration example is shown in FIG. 8. The number of time units configured for different DU cells and the multiplexing operations of the corresponding time units can be the same or different. For example, the time unit 1 corresponding to the DU cell numbered 1 of the IAB-DU of the second node is configured as Case A, and the DU cell numbered 2 of the IAB-DU of the second node is in the same time unit (Time unit 1) is configured as a multiplex operation of TDM.

In an example, the second node may receive the F1-AP signaling of the fourth node, and determine that the second node or the IAB-DU of the second node or the DU cell of the second node is configured with one or more first operation combinations . Exemplarily, the configuration of a first operation combination of a DU cell may be as shown in FIG. 7.

Optionally, the second node receives one or more first operation combinations configured for the IAB-DU by the fourth node, and the one or more first operation combinations may be applied to all cells corresponding to one IAB-DU.

Alternatively, the second node may receive one or more first operation combinations configured by the fourth node for the second node’s IAB-MT component carrier and DU cell combination {IAB-MT CC, IAB-DU cell}, and the second The node determines a first pattern combination of {IAB-MTCC, IAB-DU cell}.

Exemplarily, a first operation combination of a {IAB-MT CC, IAB-DU cell} pair determined by the second node may be as shown in FIG. 7.

In an example, the second node may receive the MAC CE indication sent by the first node to obtain a combination ID, and the first operation combination corresponding to the index of the combination ID is the effective first operation combination.

Exemplarily, the effective mode may include at least one of the following:

Take the duration corresponding to the first operation combination as the cycle to take effect repeatedly until the first operation combination is updated; only the time unit corresponding to the first operation combination takes effect, not periodically; MAC CE notification or agreement between the first node and the second node A valid period is 1, the first operation combination is valid for 1 period, which is the duration corresponding to one or more time units corresponding to the first operation combination; it takes effect periodically until the first node sends to the second node Until the new MAC CE.

In an example, the second node may receive the DCI format 2_x sent by the first node, and determine a first operation combination. A first operation combination corresponds to one or more time units of multiple operations. A time unit of multiple operations includes one or more of TDM, Case A, Case B, Case C, and Case D. Each first operation Combinations are indexed by a combination ID.

Exemplarily, the second node receives a first operation combination determined by an index field of the DCI format 2_x sent by the first node, and the multiplex operation of one time unit is indicated by the index value in Table 1. For example, the second node receives the configuration signaling of the first node and learns that a first operation combination with a combination ID of 1 corresponds to 5 time units of multiplexing operations. The 5 time units of multiplexing operations are respectively [Index 0, index 1, index 2, index 3, index 4], indicating that the 5 time unit multiplex operations corresponding to this first operation combination are TDM, Case A, Case B, Case C, and Case D, respectively.

The second node obtains the first operation combination index sent by the first node according to the first operation combination instruction MultiplexingModeIndicator sent by the first node, and the MultiplexingModeIndicator includes at least one of the following:

ID or first RNTI used to descramble the physical layer control signaling; the data payload of the physical layer control signaling; the search space for potential transmission of the first operation combination indication; the cell index corresponding to the multiplex indication information; the first operation The position of the combination indication field in the physical layer control signaling; one or more first operation combinations; wherein, the first operation combination includes at least one of the following: the first of one or more time units of an IAB-DU cell Operation combination; the correspondence between the first operation combination and the combination ID of the first operation combination.

In an example, the second node may receive an NR DCI format sent by the first node, and determine a valid first operation combination. For example, the second node may receive a valid first operation combination determined by the DCI format 2_0 or DCI format 2_5 of the first RNTI interlaced coding. The multiplexing operation of a time unit is indicated by the index value of Table 1.

For example, the second node is configured with a first operation combination with a combination ID of 1 corresponding to 5 time units of multiplexing operations, and the 5 time units of multiplexing operations are [index 0, index 1, index 2. Index 3, Index 4], indicating that the 5 time unit multiplex operations corresponding to this first operation combination are TDM, Case A, Case B, Case C, and Case D. The second node is configured to determine the second node or an IAB-DU of the second node or a DU cell or a {IAB- MT CC, IAB-DU cell} pair is the effective combination ID.

In an example, the second node may receive one DCI sent by the first node. For example, the second node receives the DCI format 2_5 sent by the first node, and an index field of the DCI format 2_5 indicates a combination ID.

The NR indicates that the soft resource availability in a time slot has 8 meanings in Table 2. The second node receives the combined ID indicated by the first node. The combined ID indicates one or more time units of multiplex operations. The multiplex operations of one time unit are indicated by an index in Table 1, and the second node determines one or Multi-task operation of multiple time units.

For example, a multiplex operation combination with a combination ID of 1 indicates that the multiplex operations corresponding to 5 time units are [index 0, index 1, index 2, index 3, index 4] in Table 1, indicating the corresponding 5 The multiplex operations of the time unit are TDM, Case A, Case B, Case C, and Case D. Or, the second node receives the DCI format 2_5 sent by the first node, and the second node determines a combination ID. If the combination ID received by the second node is 1, the second node determines the corresponding 5 time unit multiplexing operations respectively They are TDM, Case A, Case B, Case C, and Case D.

The second node receives a DCI format 2_5 sent by the first node, and the second node can learn the soft resource availability and multiplexing operation combination of the second node according to the received DCI format 2-5.

For example, a soft resource availability combination indication of the second node with a combination ID of 1 corresponds to the availability of 5 time units corresponding to [0, 1, 2, and 2 in Table 2 (corresponding to Table 14-3 of 3GPP TS38213-g20). 3, 4], indicating that the soft resource availability of the corresponding 5 time units are unspecified availability, the downlink soft resource is indicated as available and the uplink and elastic soft resources have no availability indication, the uplink soft resource is indicated as available and the downlink and elastic The soft resource has no availability indication, the downlink and uplink soft resources are indicated as available and the flexible soft resource has no availability indication, the flexible soft resource is indicated as available, and the uplink and downlink soft resources have no availability indication. The second node determines that the corresponding 5 time unit multiplexing operations are TDM, Case A, Case B, Case C, and Case D.

In an example, the second node receives a DCI format of an NR sent by the first node to obtain a combination ID, and the second node determines a valid first operation combination to determine a frame structure combination. If the second node is configured with multiple sets of first operation combinations, the second node can receive the DCI sent by the first node to determine a valid first operation combination. For example, the second node receives a DCI format 2_0 sent by the first node, the second node determines a valid first operation combination through an indication field of DCI format 2_0, and an indication field of DCI format 2_0 is used in NR Indicates the frame structure combination.

The table used to indicate the frame structure of a time slot in NR has 256 states, of which 98 states (corresponding to the 57 states in 3GPP Table 11.1.1-1 and 41 states in Table 14-2) are defined The time slot frame structure pattern, the remaining 158 states are reserved states. Select a number of states from the remaining 158 states for multiplexing operation combination instructions, corresponding to the multiplexing operation of the time unit shown in Table 1.

For example, a multiplex operation combination with a combination ID of 1 corresponds to 5 time units. The multiplex operations are [index 0, index 1, index 2, index 3, index 4] in Table 1, indicating the corresponding 5 times The multiplex operations of the unit are TDM, Case A, Case B, Case C, and Case D. The second node receives the DCI format 2_0 sent by the first node, and the second node determines the combination ID of the multiplex operation combination. If the combination ID notified by the multiplex operation combination indication field is 1, the second node determines the 5 time unit The multiplex operations are TDM, Case A, Case B, Case C, and Case D. A frame structure combination with a combination ID of 1, and the frame structure corresponding to 5 time slots respectively correspond to [0, 1, 2, 3, 0] in Table 3 (3GPP Table 11.1.1-1), which represents the 5 time slots The frame structure is respectively full downlink, full uplink, and full flexibility. The first 13 OFDM symbols are downlink and the last OFDM symbol is flexible and full downlink.

The second node may receive a DCI format 2_0 sent by the first node, and determine the frame structure combination of several time units and the multiple operation combination of several time units of the second node according to an indication field of the DCI format 2_0.

In an example, the second node may receive the first combination, the second combination, and the third combination of the first node or the fourth node configuration.

For example, the second node receives one or more first combinations configured by the first node or the fourth node for the second node, the first combination may be an availability combination, and one first combination corresponds to one index.

The second node may receive one or more second combinations configured by the first node or the fourth node for the second node, the second combination may be a multiplex operation combination, and one second combination corresponds to one index.

The second node receives one or more third combinations configured by the first node or the fourth node for the second node, and the third combination may correspond to a first combination index and a second combination index.

For example, the second node receives a first combination configured by the first node for the second node, and its index value is index 1, which represents an availability indication of one or more time units. The second node receives a second combination configured by the first node as the second node, and its index value is index 2, which represents the first operation combination of one or more time units. The first node configures a third combination for the second node, and its index value is index 3, which represents the availability combination corresponding to index 1 and the first operation combination of index 2. When the second node receives the third combination of index 3 configured by the first node, the second node can determine the availability combination of one or more time units according to index 1, and determine the first combination of one or more time units according to index 2. Operation combination. Among them, the values of index 1, index 2, and index 3 may be the same or different.

In an example, the second node may obtain an indication field from the physical layer indication signaling, and the indication field is a third combined index indicated by the first node. The second node can determine a first combination index and a second combination index based on the indication field, where the first combination index is used to index a first combination, the second combination index is used to index the second combination, and the first combination is It can be an availability combination, and the second combination can be a first operation combination.

The second node may determine the soft resource availability combination of one or more time units, and determine the first operation combination of one or more time units.

In an example, the second node may receive the signaling sent by the first node, and determine the multiplex operation of one or more time units, or determine the availability of soft resources in one or more time units. Exemplarily, some time units of the second node correspond to no-TDM, and some time units of the second node correspond to TDM. An example of the time domain distribution of TDM and non-TDM of the second node is shown in FIG. 10. The second node is configured by the first node or the fourth node with one or more combinations, and one combination corresponds to the availability of 0 or several time units and the multiple operation of 0 or several time units. When a time unit corresponds to TDM, the indication of the time unit corresponding to the combined ID is the soft resource availability indication. When a time unit corresponds to no-TDM, the indication of the time unit corresponding to the combined ID is the multiplex operation indication. Exemplarily, the second node may receive a DCI format of the NR sent by the first node to obtain a combined ID.

The second node obtains one or more first operation combinations configured by the first node or the fourth node, or one or more frame structure combinations configured by the first node. The second node receives the physical layer control signaling sent by the first node, the second node obtains a combined ID from the physical layer signaling, and the second node determines the availability of soft resources for 0 or several time units according to the signaling, or Determine the multiplex operation of 0 or several time units.

For example, when a time unit is TDM, the corresponding indication of the time unit in a combination is a soft resource availability indication. When a time unit is no-TDM, the corresponding indication of the time unit in a combination is a multiplex operation instruct.

Exemplarily, the second node may determine the availability of the corresponding TDM time unit and the multiplexing operation of the corresponding no-TDM time unit according to the combined ID indicated by the received DCI format 2_5.

As shown in Figure 11, the second node corresponds to multiple combinations, and each combination corresponds to one or more time units. When the time unit corresponds to TDM, the corresponding indication content of the time unit in the combination is an availability indication, which corresponds to an item in Table 2; when the time unit corresponds to no-TDM, the corresponding indication content of the time unit in the combination is a multiplex operation instruction. Correspond to one item in Table 1.

The second node receives the DCI format 2_5 sent by the first node to obtain the combined ID, and then determines the availability of the TDM time unit and the multiplexing operation of the no-TDM time unit.

The time unit granularity indicating the first operation combination may be a time slot and/or an OFDM symbol. For example, the second node receives the combined ID sent by the first node, and uses the time slot as the granularity to determine the multiplexing operation of one or more time units.

In an example, the second node may receive the multiplex operation combination that the first node indicates to take effect through the physical layer control signaling. For example, the second node receives the physical layer control signaling sent by the first node in the DCI format of NR. The two nodes receive the DCI format 2_0 sent by the first node to determine a valid multiplexing operation combination, such as determining the availability of soft resources or multiplexing operations for one or more time units.

If the transmission direction of the IAB-MT time unit corresponding to the multiplex operation combination received by the second node is determined. For example, UL and/or DL, this time unit does not need to indicate the frame structure, and the indication of this time unit is only a multiplexing operation indication.

In the case that the DCI includes DCI format 2_0, if the time unit of the first type unit is an F unit, the combination ID indicates the frame structure of the time unit, or if the time unit of the first type unit is a UL unit or a DL unit, then The combination ID indicates the multiplexing operation of the time unit.

For example, the frame structure configuration of IAB-MT is shown in Figure 12, the transmission direction of 4 time units of the 5 time units of the second node is clear, and the transmission direction of one time unit is flexible and variable. Among them, the first time unit and the second time unit are DL, and the operation of the IAB-MT of the second node in these time units is downlink reception; the fourth time unit and the fifth time unit are UL, and the second node The operation of the IAB-MT in these time units is uplink transmission; the third time unit is F, the operation of the IAB-MT of the second node in this time unit is flexible, and the transmission direction can be based on the semi-static transmission configuration or Dynamic scheduling or dynamic indication decision.

When the frame structure of one time unit of the IAB-MT of the second node is UL or DL, the frame structure of DCI format 2_0 indicates invalid, and the second node receives a valid combination to determine the multiplexing operation of this time unit.

The table used to indicate the frame structure of the time slot in NR has 256 states, of which 98 states (corresponding to the 57 states in Table 11.1.1-1 of 3GPP TS38213-g20 and 41 states in Table 14-2) are The time slot frame structure pattern has been defined, and the remaining 158 states are reserved states. Selecting several states from the remaining 158 states represents several multiplexing operations in Table 1.

For the time unit of the transmission direction determination, the frame structure indication of DCI format 2_0 can be considered invalid. In addition, for resources of type F in the time unit of the IAB-MT, the second node determines the transmission direction of this resource according to the combination indicated by the DCI format 2_0.

The second node receives one or more combinations configured by the first node or the fourth node, and the combination indicates the multiplex operation for the time unit determined by the frame structure direction, and the combination indicates the frame structure for the flexible time unit of the frame structure . Among them, the frame structure corresponds to the 57 states in Table 11.1.1-1 of 3GPP TS38213-g20 and the 41 states in Table 14-2. One state indicates the frame structure of one time slot, and the multiplexing operation of one time unit corresponds to the remaining Several of the 158 states are described in Table 1.

For example, corresponding to the IAB-MT frame structure configuration in Figure 12, the combination of the second node configured by the first node or the fourth node with a combination ID of 1 is [index 2 index 2 frame structure index 1 index 7 index 7], where index 2 and index 7 correspond to the multiplexing operation of Table 1, and frame structure index 1 corresponds to the frame structure indication of Table 3. For example, the value of frame structure index 1 corresponds to the frame structure corresponding to "0" in Table 3. The second node receives the DCI format 2_0 sent by the first node, and determines the combination index whose combination ID is 1. The second node determines that the multiplex operation of the first time unit is Case A, the multiplex operation of the second time unit is Case A, and the resource of type F of the third time unit is indicated as a full downlink frame structure. The multiplex operation of one time unit is Case B, and the multiplex operation of the fifth time unit is Case B.

In an example, when the transmission direction indicated by the first operation combination is inconsistent with the transmission direction of the time unit of the unit of the first type of the second node, the second node determines that the indication of the first operation combination is an invalid indication; and/ Or, in a case where the transmission direction indicated by the first operation combination is inconsistent with the transmission direction of the time unit of the second type unit of the second node, the second node determines that the indication of the first operation combination is an invalid indication.

For example, the frame structure of 5 time units of the IAB-MT of the second node is configured as [DL DL DL F UL], if the frame structure of 5 time units corresponding to the IAB-DU of the second node is configured as [DL F UL UL UL]. For the third time unit, the operation that IAB-MT can perform is downlink reception, and the operation that IAB-DU can perform is uplink reception, that is, the operation that can be performed in the third time unit is Case B's multiplexing. The third time unit of the node is configured by the first node and/or indicated as Case C, which means that the IAB-MT can perform downlink reception, and the IAB-DU can perform downlink transmission. For the uplink transmission direction of the IAB-DU corresponding to the third time unit, the second node determines that the multiplexing operation configured or instructed by the first node for the third time unit of the second node is an invalid configuration and/or an invalid indication.

In an example, the second node is configured by the first node and/or the fourth node and/or indicates a combination. If the multiplex operation corresponding to a time unit of the second node in the combination is inconsistent with the resource transmission direction of the IAB-MT and/or IAB-DU of the second node, the second node determines that the transmission direction corresponding to the operation combination changes the transmission direction of the second node. The resource transmission direction of IAB-MT and/or IAB-DU.

For example, the frame structure of 5 time units of the IAB-MT of the second node is configured as [DL DL DL F UL], if the frame structure of 5 time units corresponding to the IAB-DU of the second node is configured as [DL F UL UL UL]. For the third time unit, the operation that IAB-MT can perform is downlink reception, and the operation that IAB-DU can perform is uplink reception, that is, the operation that can be performed in the third time unit is Case B's multiplexing. The third time unit of the node is configured by the first node and/or indicated as Case C, which means that the IAB-MT can perform downlink reception, and the IAB-DU can perform downlink transmission. For the uplink transmission direction of the IAB-DU corresponding to the third time unit, the second node determines that the transmission direction of the IAB-DU corresponding to the third time unit is changed to DL.

In an example, the implementation manner for the second node to determine the transmission direction in step S1402 may include, but is not limited to, the following manners:

In the case that the multiplex operation in one time unit corresponds to the F-type resource of the first-type unit of the second node, the second node determines the transmission direction of the F-type resource according to the first operation combination; and/or, in a In the case that the multiplex operation in the time unit corresponds to the F-type resource of the second-type unit of the second node, the second node determines the transmission direction of the F-type resource according to the first operation combination.

Optionally, the foregoing implementation manner may further include: when the second node performs a multiplexing operation, the second node determines the transmission direction of the second type unit of the second node according to the multiplexing operation combination instruction; and/or, In the case that the second node performs a multiplexing operation, the second node determines the transmission direction of the first type unit of the second node according to the multiplexing operation combination instruction.

Optionally, in the case that the multiplexing operation in one time unit corresponds to the F-type resource of the first type unit of the second node, the second node determines that the multiplexing operation is performed at the second node according to the first operation combination The transmission direction of the F-type resource; and/or, in the case that the multiplex operation in one time unit corresponds to the elastic transmission of the F-type resource of the second-type unit of the second node, the second node performs the first operation Combine, determine the transmission direction of the F-type resource when the second node performs multiplexing operations.

In an example, if the transmission direction of the IAB-MT resource corresponding to a time unit is F, the second node determines the transmission direction of the IAB-MT resource corresponding to the time unit according to the multiplexing operation of the time unit.

For example, the frame structure of one time unit of the IAB-MT of the second node is configured as F, if the frame structure of the time unit corresponding to the IAB-DU of the second node is configured as UL. For this time unit, the operation of IAB-MT is flexible, and the operation of IAB-DU is uplink reception. If the second node receives the configuration of the first node and/or indicates that this time unit can execute Case B, the second node determines that if the IAB-MT of the second node is scheduled, the IAB-DU can perform uplink reception at the same time. The second node determines that the transmission direction of the resource corresponding to the IAB-MT is downlink reception.

In an example, when the transmission direction indicated by the first operation combination is inconsistent with the resource transmission direction of the first-type unit of the second node, the second node determines the transmission direction according to the notification signaling that is sent later; and/ Or, in the case that the transmission direction indicated by the first operation combination is inconsistent with the resource transmission direction of the second type unit of the second node, the second node determines the transmission direction according to the notification signaling that is sent later. Wherein, the notification signaling that is sent later in time includes signaling that indicates the first operation combination and signaling that indicates the resource direction of the second node.

That is, the first node and/or the fourth node configure and/or instruct one or more time unit multiplexing operations for the second node. If the resource transmission direction of the IAB-MT time unit of the second node corresponding to the multiplexing operation is F, and the F resource is dynamically indicated as direction 1, the direction of this time unit of the IAB-MT corresponding to the multiplexing operation is direction 2. , The subsequent indication signaling determines the transmission direction of the F resource of the IAB-MT. Among them, direction 1 is DL or UL, and direction 2 is DL or UL.

For example, the direction of one time unit of the IAB-MT of the second node is F, and at time 1, the second node receives a DCI format 2_0 indicating that the direction of this time unit is UL. At time 2 (time 2 is later than time 1), the first node and/or the fourth node receive the configuration and/or instruction for this time unit, indicating that the time unit is the multiplexing operation of Case B, then the corresponding multiplexing operation will be The direction of this time unit is changed to DL.

In an example, if the direction of the time unit of one IAB-DU of the second node is F. For this time unit, the operation of the IAB-DU is flexible, that is, the IAB-DU can use this resource to schedule the third node to perform downlink reception or uplink transmission. The second node receives the configuration and/or instruction of the multiplex operation of one or more time units from the first node, then the second node determines the multiplex operation corresponding to one time unit, or the second node determines if the multiplex operation is performed Operations that can be performed in the time unit of the corresponding IAB-DU, or the second node determines the direction of the time unit of the corresponding IAB-DU, or the second node determines that the multiplexing operation is performed in the time unit of the corresponding IAB-DU Multiplexing operations cannot be guaranteed for operations other than the transmission direction.

For example, if the frame structure of one time unit of the IAB-MT of the second node is configured as DL, if the frame structure of the time unit corresponding to the IAB-DU of the second node is configured as F. The second node receives the configuration and/or instructions of the first node. The second node determines that a time unit of the IAB-DU corresponds to the multiplexing operation of Case B, and the second node determines that the multiplexing operation corresponding to the time unit is Case B; and Or, if the second node performs multiplexing operations in the corresponding time unit, the IAB-DU of the second node should perform the uplink receiving operation; or the second node determines that the performance cannot be guaranteed when performing multiplexing operations other than Case B .

The above-mentioned time unit corresponding to IAB-DU can be understood as the time unit of IAB-DU determined when the time unit corresponding to IAB-DU and IAB-MT is at least one of the following relationships: the time unit corresponding to IAB-DU and IAB- The scheduled time unit of MT completely overlaps; the time unit corresponding to IAB-DU partially overlaps the time unit scheduled by IAB-MT; one of the time unit corresponding to IAB-DU and the time unit scheduled by IAB-MT In the time span, there is another one; the intersection of the time unit corresponding to the IAB-DU and the scheduled time unit of the IAB-MT.

In an example, if the resource transmission direction of the time unit of the IAB-DU of the second node is F, one time unit of the second node is configured by the first node and/or the fourth node and/or instructs a multiplexing operation. For example, the F time unit of the IAB-DU of the second node is dynamically indicated by the first node as direction 1, and the second node is configured and/or instructed by the first node and/or fourth node to correspond to the direction of this time unit. It is direction 2, and the direction of the IAB-DU for this time unit is judged to be direction 2.

Or, the F resource of the IAB-DU of the second node is dynamically indicated as direction 1 by the first node at time 1, and at time 2, the multiplex operation configured and/or indicated by the first node and/or the fourth node corresponds to this The direction of the IAB-DU of the time unit is direction 2. If time 2 is later than time 1, the direction of the time unit corresponding to IAB-DU is direction 2. If time 2 is earlier than time 1, the time unit corresponding to IAB-DU The direction is direction 1. If time 1 and time 2 belong to the same time or the same time within the error range, the transmission directions corresponding to the two signalings do not conflict.

Or, the F resource of the IAB-DU of the second node is dynamically indicated as direction 1 by the first node at time 1, and at time 2, the second node is configured and/or indicated by the first node and/or the fourth node. The direction of the IAB-DU corresponding to this time unit of the operation is direction 2, and direction 1 and direction 2 do not conflict.

Alternatively, the second node is configured by the first node and/or the fourth node and/or indicates the operations that the IAB-DU can perform in the corresponding time unit when the IAB-MT is scheduled.

For example, the frame structure of one time unit of the IAB-MT of the second node is configured as DL, if the frame structure of the time unit of the IAB-DU corresponding to the second node is configured as F. For this time unit of the IAB-DU, the operation of the IAB-DU is flexible, that is, the IAB-DU can use this resource to schedule the third node for downlink reception or schedule the third node for uplink transmission. When the first node and/or the fourth unit is configured for the second node and/or indicates the time unit is the multiplexing operation of Case B, it means that if the first node schedules the IAB-MT of the second node, the IAB of the second node -DU can perform uplink reception, or this time unit of IAB-DU is rewritten to the direction corresponding to the multiplexing operation, for example, the F time unit of IAB-DU is rewritten to UL.

In an example, the second node determines the timing of the time unit corresponding to the first operation combination according to the timing of the time unit of the cell corresponding to the second type of unit of the second node; or, the second node determines the timing of the time unit corresponding to the first operation combination according to the first type of the second node. The timing of the time unit of the component carrier of the unit determines the timing of the time unit corresponding to the first operation combination.

In an example, the second node determines the duration of the time unit corresponding to the first operation combination according to the subcarrier interval of the time unit of the cell corresponding to the second type unit of the second node; or, the second node determines the duration of the time unit corresponding to the first operation combination according to the second node Determine the duration of the time unit corresponding to the first operation combination based on the reference subcarrier interval of the cell corresponding to the second type of unit.

Alternatively, the second node determines the duration of the time unit corresponding to the first operation combination according to the subcarrier interval of the time unit of the component carrier corresponding to the first type unit of the second node; or, the second node determines the duration of the time unit corresponding to the first operation combination according to the second node The reference subcarrier interval of the time unit of the component carrier corresponding to a type of unit determines the duration of the time unit corresponding to the first operation combination.

In an example, the multiplexing operation of one time unit may mean that the first node schedules the first type unit of the second node to perform transmission or reception according to at least one of the power, beam, and port corresponding to the multiplexing operation; or The multiplexing action of the time unit indicates that the second type unit of the second node schedules the third node according to at least one of the power, beam, and port corresponding to the multiplexing operation.

The second node may agree with the first node and/or the fourth node that when the second node performs a multiplexing operation, the first type unit or the second type unit of the second node executes the power, beam, or port corresponding to the operation.

Alternatively, the second node may negotiate with the first node and/or the fourth node the power, beam, or port corresponding to the operation performed by the first type unit or the second type unit of the second node when the second node performs a multiplexing operation.

Alternatively, the second node may receive the instruction or configuration of the first node and/or the fourth node, and determine the power corresponding to the operation performed by the first type unit or the second type unit of the second node when the second node performs a multiplexing operation , Beam or port.

The power of the first type unit of the second node includes at least one of the following: the uplink transmission power of the first type unit of the second node, and the downlink reception power of the first type unit of the second node. The power of the second-type unit of the second node includes at least one of the following: the power of the second-type unit of the second node when sending data to the third node, and the power of the second-type unit of the second node when receiving data from the third node Receive power.

The beam of the first type unit of the second node includes at least one of the following: the uplink transmission beam of the first type unit of the second node, and the downlink reception beam of the first type unit of the second node. The beam of the second-type unit of the second node includes at least one of the following: an uplink received beam of the second-type unit of the second node, and a downlink transmission beam of the second-type unit of the second node.

The port of the first type unit of the second node includes at least one of the following: the uplink transmission beam of the first type unit of the second node, and the downlink reception beam of the first type unit of the second node. The port of the second-type unit of the second node includes at least one of the following: a downstream transmission port of the second-type unit of the second node, and an upstream receiving port of the second-type unit of the second node.

The aforementioned negotiation procedures may include:

The second node reports the recommended value or recommended configuration to the first node and/or the fourth node, and the second node receives the power, beam, and port corresponding to the first node and/or the fourth node regarding the multiplexing operation performed by the second node At least one of the configuration and/or instructions.

The foregoing operation of scheduling the third node by the second node may include scheduling the third node for uplink transmission or downlink reception.

In an example, the second node may receive a physical layer control signaling sent by the first node, the physical layer control signaling includes an indication field, the indication field indicates an index, and the second node identifies a beam combination based on the index , A combination corresponds to the beam information of one or more time units.

The aforementioned beam information includes at least one of the following:

The receiving beam of the first type unit of the second node; the transmitting beam of the first type unit of the second node; the receiving beam of the second type unit of the second node; the transmitting beam of the second type unit of the second node.

The second node receives a physical layer control signaling sent by the first node. The second node identifies the beam information of one or more time units. The beam information can indicate the corresponding beam information of the second node in one or more time units. Or indicate the corresponding beam information when the second node performs the corresponding multiplexing operation on the corresponding one or more time units.

For example, the second node receives a beam combination of one or more time units for Case A of the second node indicated by the first node, and the second node determines that if the second node executes Case A in one time unit, the second node The transmitting or receiving beam corresponding to the first type unit or the second type unit of the node.

In an example, the second node can determine the reference subcarrier interval corresponding to the multiplexing operation of the second node in the following manner, for example, the second node negotiates with the first node, or the second node and the first node agree on a reference The subcarrier interval, or the second node obtains the configuration of the first node or indicates the reference subcarrier interval.

The reference subcarrier interval corresponding to the multiplexing operation configured by the first node for the second node may be used to determine the duration of a time unit corresponding to the multiplexing operation. For example, the value of the subcarrier interval in NR is denoted by u, and the subcarrier interval is 15*2^ ^u . After the subcarrier interval is determined, the duration of an OFDM symbol corresponding to the CP type can be determined, and then it can be determined Duration of other time units.

Exemplarily, the second node may also obtain the configured reference subcarrier interval through signaling. The signaling may include high-level signaling, or MAC CE, or physical layer signaling. The high-level signaling may be RRC signaling and F1- At least one of AP signaling. The physical layer signaling can be an indication through the DCI, and the direct indication can be to encode u. In the DCI, a codeword is indicated through a field, and the codeword can represent a value of u. The value of u can be limited through high-level signaling or MAC CE signaling. For example, the value range of u is [0, 1, 2, 3, 4], and the first node limits the value range of u to [0, 1, 2, 3] through higher layer signaling or MAC CE signaling. A field of DCI contains two or more bits, which can be used to indicate that 4 codewords respectively represent one of [0, 1, 2, 3].

Optionally, the reference subcarrier interval agreed upon by the second node and the first node may be at least one of the following: the subcarrier interval of the first type of unit of the second node, the subcarrier interval of the second type of unit of the second node, The minimum or maximum value of the subcarrier interval of the first type unit of the second node and the subcarrier interval of the second type unit of the second node. Wherein, the subcarrier interval of the first type unit of the second node is the activated subcarrier interval or the reference subcarrier interval of the first type unit of the second node, and the subcarrier interval of the second type unit of the second node is the second node The activation subcarrier interval of the second type unit of the second node, or the activation subcarrier interval of the cell corresponding to the second type unit of the second node, or the subcarrier interval of the cell corresponding to the second type unit of the second node, or the second node The reference subcarrier interval of the cell corresponding to the second type of unit.

In an example, the second node may obtain one or more combinations of the configuration of the first node and/or the fourth node, and one combination corresponds to the availability and multiplexing operation of one or more time units, where the availability of one time unit And multi-tasking operation can be any item in Table 4.

Exemplarily, the second node receives a combination of one or more time units configured by the first node. When the index value is one of 0-7, the index may indicate the availability of a time unit, and when the index value is the newly added index 1 ~ When adding one of the index 128, you can indicate the availability of a time unit and multi-tasking operation.

For example, the combination ID that the second node receives the first node configuration is 1, and the combination corresponds to the index of 4 time units corresponding to [7, new index 9, new index 10, new index 11] in Table 4, which Indicates that the UL/DL/F soft resource of the first time unit of 4 time units is available, the second time sheet has no soft resource availability indication and the multiplexing operation is Case A, and the third time unit downlink soft resource is The indication is available, the uplink and flexible soft resources have no availability indication and the multiplex operation is Case A, the fourth time unit uplink soft resources are indicated as available, the downlink and flexible soft resources have no availability indication and the multiplex operation is Case A.

In an example, the first operation combination that the second node receives the configuration and/or instruction of the first node or the fourth node may be at least one of the following: FDM, SDM, FDM and SDM, no-limited. FDM can be understood as the second node performing multiplex operations in frequency division, SDM can mean that the second node performs multiple operations in space division, and No-limited can mean that the second node is not limited to performing multiple operations in frequency division or space division. For example, if the second node performs Case A frequency and space division in a time unit, it means that IAB-DU performs the transmission operation, and IAB-MT also performs the transmission operation. The frequency domain resources 1 and IAB-DU occupied by IAB-DU Frequency domain resources occupied by MT 2 are orthogonal in frequency domain. The space beam 1 corresponding to the IAB-DU transmission and the space beam 2 corresponding to the IAB-MT transmission will not cause or have little interference with each other. Among them, whether the interference is caused or whether the interference is small can be judged through the threshold value. The threshold value is a preset value, or agreed by both parties, or corresponds to the interference observation reported by the receiver.

In an example, the second node may receive one or more first operation combinations configured by the first node or the fourth node, and the first operation combination corresponds to one or more time units, and the multiplexing pattern of one time unit may be For various meanings as shown in Table 5.

In an example, the second node receives a physical layer control signaling sent by the first node, the physical layer control signaling includes an indication field, the indication field indicates an index, and the second node is based on the indication field in the signaling Determine a combination, for example, the second node determines at least one of the following:

One or more time units of the second node; availability of one time unit in one or more time units of the second node; multiplex operation of one time unit in one or more time units of the second node; The availability and multiplexing operation of one time unit among one or more time units of the two nodes.

Multiplex operations include TDM, Case A, Case B, Case C, Case D, no-TDM, among which Case A, Case B, Case C, Case D, no-TDM include SDM, FDM, SDM and FDM, no -limited. Case A of FDM may indicate that the second node executes Case A frequency division. Case B of FDM and SDM can mean that the second node executes Case B frequency and space division. For example, IAB-MT executes reception on beam 1 and frequency domain resource 1, and IAB-DU executes on beam 2 and frequency domain resource 2. take over.

In an example, the second node receives the signaling from the first node regarding the configuration and/or indication of the first operation combination, and determines the multiplexing operation corresponding to one or more time units. The second node may determine the first time unit for the multiplex operation combination to take effect according to the receiving time of the received configuration and/or indication signaling.

The second node may determine the first time unit according to the time unit of IAB-MT or IAB-DU.

For example, the second node receives the first operation combination configured and/or instructed by the first node in the time unit corresponding to IAB-MT, and the second node determines that the multiplexing operation is valid according to one of the following methods The first time unit:

Determine the previous time unit in the time unit corresponding to the IAB-DU that overlaps the time unit in which the IAB-MT receives the first node configuration and/or signaling instruction as the first time unit corresponding to the multiplexing operation combination ; If the time unit of the IAB-MT of the second node receiving the signaling configured and/or indicated by the first node is included in the time unit of the IAB-DU of the second node determined by the multiplexing operation with reference to the subcarrier interval, then It is determined that this time unit of the IAB-DU of the second node is the first time unit corresponding to the multiplexing operation combination.

For example, the second node receives the effective first operation combination of one or more time units configured and/or instructed by the first node in the time unit corresponding to the IAB-MT, and the second node follows the IAB-MT of the second node The time unit determines the first time unit in which the first operation combination takes effect, that is, the first time unit in which the time unit in which the first operation combination is received by the IAB-MT corresponds to the first time unit in effect.

In an example, the second node may report a desired first operation combination to the first node or the fourth node. A desired first operation combination includes one or more multiple operations of time units, and multiple operations of one time unit. Work operations include at least one of the following: TDM, Case A, Case B, Case C, Case D, no-TDM, FDM, SDM, FDM and SDM, no-limited.

Exemplarily, a reporting manner may be that the second node reports the desired first operation combination corresponding to several time units. The second node reports the first operation combination similar to that shown in Figure 7 to the first node or the fourth node; or, the second node reports the expected first operation combination of a second-type unit of the second node to the first node. Node or fourth node; or, the second node reports the expected first operation combination of a cell of the second type unit of the second node to the first node or the fourth node; or, the second node combines an index pair It is expected that the first operation combination is reported to the first node or the fourth node, and the index pair can be a cell index or component carrier index of the first type unit of the second node and a cell index of the second type unit of the second node When the second node is an IAB node, it corresponds to the component carrier pair of IAB-DU cell and MT ({MT CC, DU cell}pair).

Optionally, a reporting method may also be that the second node reports the desired multiplexing operation according to the resource type. For example, the second node reports the expected multiplexing operation when the DU resource is direction 1. Direction 1 can be at least one of the following: DL, F, UL; or, the second node reports the DU resource as direction 1, and the IAB-MT resource is the direction 2 expected multiplexing operation; or, the second node reports When the MT resource is direction 1, the corresponding desired multiplexing operation. The DU resource may be a resource of a cell corresponding to an IAB-DU, and the resource of an IAB-MT may be a resource of a component carrier of the corresponding IAB-MT.

The second node can report according to a combination of the above two reporting methods. For example, when the second node reports an index pair to the first node, and the resource of the second type unit of the second node is DL, the expected multiplexing operation is Case A.

In an example, the second node may also report the multiplexing capability information to the first node or the fourth node.

The aforementioned multiplexing capability information may include at least one of the following: a cell index of the second type unit of the second node, a cell index or component carrier index of the first type unit of the second node, a combination of transmission directions, and first capability information .

The combination of transmission directions may include at least one of TDM, Case A, Case B, Case C, Case D, no-TDM, and no-limited. The first capability information may include timing mechanisms, power control mechanisms, and multiplexing mechanisms. At least one.

The timing mechanism may indicate whether the second node performs the operation corresponding to the combination of transmission directions, whether the timing corresponding to the transmission direction is required.

The power control mechanism may indicate whether the second node performs an operation corresponding to the combination of transmission directions, whether the transmission or reception power or the transmission power spectral density or the reception power spectral density corresponding to the transmission direction is required.

The multiplexing mechanism includes at least one of FDM, SDM, FDM, SDM, and no-limited.

For example, the transmission direction combination reported by the second node is Case A, and the multiplexing mechanism of the first capability reported by the second node is FDM, which means that the second node informs the first node or the fourth node, and the second node supports the FDM mechanism Case A.

For example, the transmission direction combination reported by the second node is Case A, and the timing mechanism of the first capability reported by the second node is the timing corresponding to the transmission direction combination, which means that the second node informs the first node or the fourth node , When the timing requirements corresponding to Case A are met, the second node supports Case A.

Optionally, if the second node is an IAB node, then the multiplexing of Case A can be understood as IAB-MT performs transmission and IAB-DU performs transmission, and IAB-MT and IAB-DU are at the OFDM symbol boundary or time slot boundary or subordinate Frame boundary alignment, where alignment may include alignment within a certain error range, for example, alignment within a CP error range.

Optionally, different combinations of transmission directions can correspond to different power control mechanisms. Taking Case A as an example, the second node performs the operation of Case A, and can require that the transmission power of a second type unit of the second node and the transmission power of a second type unit of the second node do not exceed the maximum transmission of the second node The transmission power or power spectral density of the power or both does not exceed the first threshold. Taking Case B as an example, the second node performing the operation of Case B may require the received power or received power spectral density of a second type unit of the second node and the received power or received power of a second type unit of the second node The spectral density is equal or the difference between the two does not exceed the second threshold. Taking Case C as an example, the second node performs the operation of Case C, which may require the received power or received power spectral density of a first type unit of the second node and the transmission power or transmission power of a second type unit of the second node The difference in the spectral density meets the third threshold or the received power or received power spectral density of a first-type unit of the second node meets the expectation of the second node. The above-mentioned meeting the third threshold may be that the transmit power or transmit power spectral density of a second type unit of the second node minus the received power or received power spectral density of a first type unit of the second node does not exceed the difference The third threshold. Taking Case D as an example, the second node performing the operation of Case D may require the transmit power or transmit power spectral density of a first type unit of the second node and the received power or received power of a second type unit of the second node The difference of the spectral density meets the fourth threshold or the transmission power or the transmission power spectral density of a first type unit of the second node meets the expectation of the second node. Wherein, the above-mentioned first threshold, second threshold, third threshold, and fourth threshold are thresholds negotiated by the first node or the fourth node and the second node, or the first node or the fourth node is the threshold configured by the second node, Or the agreed threshold, or the threshold determined by the second node.

For example, the transmission direction combination reported by the second node is Case B, and the power control mechanism of the first capability reported by the second node is the power control mechanism corresponding to the transmission direction combination, which means that the second node informs the first node or the fourth Node, when the power requirement corresponding to Case B is met, the second node supports Case B.

The first capability reported by the second node may also be multiple of a report power control mechanism, a timing mechanism, and a multiplexing mechanism. For example, the transmission direction combination reported by the second node is Case B, the power control mechanism for the first capability reported by the second node is the power control mechanism corresponding to Case B, and the timing mechanism for the first capability reported by the second node is The timing mechanism corresponding to Case B is required. When the power control mechanism required by Case B is that the difference between the received power of a first-type unit of the second node and the received power spectral density of a second-type unit of the second node does not exceed the second threshold, it means the second node One cell of the second type unit and one cell or component carrier of the first type unit support Case B multiplexing.

FIG. 15 is a schematic structural diagram of a multiple operation device provided by an embodiment of this specification. As shown in FIG. 15, the device may include: an indication module 1501; an indication module 1501, which is used to indicate the first operation combination to the second node.

The device may also include a configuration module 1502, as shown in FIG. 15a, where the configuration module 1502 is used to configure the first operation combination, that is, the configuration module 1502 configures the first operation combination and instructs the module 1501 to perform the first operation combination. Combine instructions to the second node.

Optionally, the device may only include a configuration module 1502, as shown in FIG. 15b, the configuration module 1502 is used to configure the first operation combination.

As shown in Figure 15c, the above-mentioned device may also only include an indication module 1501 and an acquisition module 1503; wherein, the acquisition module 1503 is used to acquire the first operation combination of the fourth node configuration, that is, the acquisition module 1503 acquires the first operation combination of the fourth node configuration. For an operation combination, the instruction module 1501 instructs the acquisition module 1503 to obtain the first operation combination.

The first operation combination involved in the above device includes any one of the following: a combination of multiple operations, a combination of multiple operations and a frame structure, and a combination of multiple operations and availability.

Exemplarily, the multiplexing operation combination indicates the multiplexing operation on one or more time units of the second node, and the multiplexing operation may include time division multiplexing TDM, non-time division multiplexing no-TDM, and space division multiplexing SDM , Frequency division multiplexing FDM, multiplexing mode one, multiplexing mode two, multiplexing mode three, multiplexing mode four, unlimited no-limited; among them, multiplexing mode one means the second node The first type of unit performs uplink transmission, while the second type of unit performs downlink transmission. The multiplex mode 2 means that the first type of unit in the second node performs downlink reception, while the second type of unit performs uplink reception. The multiplex mode 3 represents the first type of unit. The first type of unit in the second node performs downlink reception, while the second type of unit performs downlink transmission. Multiplexing mode 4 means that the first type of unit in the second node performs uplink transmission, while the second type of unit performs uplink reception; multiplexing The combination of operation and frame structure indicates a multiplex operation on one or more time units of the second node, and indicates a frame structure of one or more time units of the second node. The combination of multiplexing operation and availability indicates the multiplexing operation on one or more time units of the second node, and indicates the availability of one or more time units of the second node.

In an example, the above-mentioned indication module 1501 is used to indicate the combined identification code ID indicating the first operation combination to the second node through notification signaling; wherein, the notification signaling includes RRC signaling, MAC CE, and DCI. For any one, DCI includes DCI format 2_x, or DCI format 2_5, or DCI format 2_0.

In an example, the DCI can be interleaved with the first RNTI.

In an example, in the case that the multiplex operation in one time unit corresponds to the F-type resource of the first-type unit of the second node, the first operation combination indicates the transmission direction of the F-type resource; and/or, In the case that a multiplex operation in a time unit corresponds to the F-type resource of the second-type unit of the second node, the first operation combination indicates the transmission direction of the F-type resource.

In an example, in the case that a multiplex operation in a time unit corresponds to the elastic transmission of type F resources of the first type unit of the second node, the first operation combination indicates that when the second node performs the multiplex operation , The transmission direction of the F-type resource; and/or, in the case that the multiplex operation in one time unit corresponds to the flexible transmission of the F-type resource of the second-type unit of the second node, the first operation combination indicates in the When the second node performs multiplexing operations, the transmission direction of the F-type resources.

In an example, the first operation combination indicates the transmission direction of the second type unit of the second node when the second node performs multiplexing operations; and/or the first operation combination indicates the multiplexing operation at the second node During operation, the transmission direction of the first type unit of the second node.

In an example, when the transmission direction indicated by the first operation combination is inconsistent with the transmission direction of the time unit of the unit of the first type of the second node, the indication of the first operation combination is an invalid indication; When the transmission direction indicated by an operation combination is inconsistent with the transmission direction of the time unit of the second type unit of the second node, the indication of the first operation combination is an invalid indication.

In an example, when the DCI includes DCI format 2_5, the combined ID indicates the availability of the time unit corresponding to TDM, or the combined ID indicates the multiplexing operation of the time unit corresponding to no-TDM, or the combined ID indicates the corresponding Multiplex operation and availability of the unit of time.

In the case that DCI includes DCI format 2_0, if the time unit of the first type unit is F unit, the combination ID indicates the frame structure of the time unit; or, in the case that DCI includes DCI format 2_0, if the time unit of the first type unit The time unit is uplink UL or downlink DL, and the combined ID indicates the multiplexing operation of the time unit.

In an example, in the case that the resource transmission direction of the first type unit of the second node is inconsistent with the transmission direction indicated by the first operation combination, determine the first node of the second node according to the notification signaling that is sent later. The transmission direction of the type unit; and/or, in the case that the resource transmission direction of the second type unit of the second node is inconsistent with the transmission direction indicated by the first operation combination, the second node is determined according to the notification signaling that is sent later The transmission direction of the second-type unit of the second node; wherein the notification signaling that is sent later includes the signaling that indicates the first operation combination and the signaling that indicates the resource direction of the second node.

In an example, the configuration module 1502 is used to configure the first operation combination of the second node; or, configure the first operation combination of the second type unit of the second node; or, configure the second type unit of the second node The first operation combination of the corresponding cell; or, configure the first operation combination of the cell corresponding to the second type unit of the second node and the component carrier corresponding to the first type unit of the second node.

In an example, the first operation combination includes an offset, the offset is used to indicate the time offset for the notification signaling to take effect, and the notification signaling is used to indicate the first operation combination.

In an example, the timing of the time unit corresponding to the first operation combination is determined according to the timing of the time unit of the cell corresponding to the second type unit of the second node; or, the timing of the time unit corresponding to the first operation combination is determined according to the second node The timing determination of the time unit of the component carrier of the first type unit.

The multiplexing operation device provided in this embodiment is used to implement the multiplexing operation method of the embodiment shown in FIG. 4b, FIG. 5, and FIG.

FIG. 16 is a schematic structural diagram of a multiple operation device provided by an embodiment of this specification. As shown in FIG. 16, the device may include a configuration module 1601; the configuration module 1601 is used to configure a first operation combination; wherein, the first operation The combination includes the operation combination of the second node or the operation combination of the third node. The third node is a child node of the second node. The first operation combination includes any of the following: multiplex operation combination, multiplex operation and frame structure combination, Combination of multiplex operation and usability.

Exemplarily, the multiplex operation combination indicates the multiplex operation on one or more time units of the second node, and the multiplex operation includes TDM, no-TDM, SDM, FDM, multiplex mode one, and multiplex mode two , Multiplex mode three, multiplex mode four, no-limited any one; among them, multiplex mode one means that the first type of unit in the second node performs uplink transmission, while the second type of unit performs downlink transmission, multiplexing The second mode means that the first type of unit in the second node performs downlink reception, while the second type of unit performs uplink reception, and the multiplexing mode 3 means that the first type of unit in the second node performs downlink reception, while the second type of unit performs downlink Transmission, multiplexing mode four means that the first type of unit in the second node performs uplink transmission, while the second type of unit performs uplink reception; the combination of multiplexing operation and frame structure indicates the multiple of one or more time units of the second node It also indicates the frame structure of one or more time units of the second node. The combination of multiplexing operation and availability indicates the multiplexing operation on one or more time units of the second node, and indicates the availability of one or more time units of the second node.

In an example, the configuration module 1601 is used to configure the combined ID of the first operation combination to the second node or the first node through F1-AP signaling.

In the case that the first operation combination includes the operation combination of the second node, the configuration module 1601 is used to configure the first operation combination of the second node; or, configure the first operation combination of the second type unit of the second node; or , Configure the first operation combination of the cell corresponding to the second type unit of the second node; or, configure the first operation of the cell corresponding to the second type unit of the second node and the component carrier corresponding to the first type unit of the second node combination.

The above-mentioned configuration module can also be used to execute other programs in the embodiment shown in FIG. 13, which will not be repeated in the embodiment of this specification.

FIG. 17 is a schematic structural diagram of a multiple operation device provided by an embodiment of this specification. As shown in FIG. 17, the device includes: an acquisition module 1701 and a determination module 1702; an acquisition module 1701 for acquiring a first operation combination ; The determination module 1702 is used to determine at least one of the transmission direction, the transmission direction and availability, the transmission direction and the frame structure according to the first operation combination.

The first operation combination includes any one of the following: a combination of multiplexing operation, a combination of multiplexing operation and frame structure, a combination of multiplexing operation and availability.

Exemplarily, the multiplex operation combination indicates the multiplex operation on one or more time units of the second node, and the multiplex operation includes TDM, no-TDM, SDM, FDM, multiplex mode one, and multiplex mode two , Multiplex mode three, multiplex mode four, no-limited any one; among them, multiplex mode one means that the first type of unit in the second node performs uplink transmission, while the second type of unit performs downlink transmission, multiplexing The second mode means that the first type of unit in the second node performs downlink reception, while the second type of unit performs uplink reception, and the multiplexing mode 3 means that the first type of unit in the second node performs downlink reception, while the second type of unit performs downlink Transmission, multiplexing mode four means that the first type of unit in the second node performs uplink transmission, while the second type of unit performs uplink reception; the combination of multiplexing operation and frame structure indicates the multiple of one or more time units of the second node It also indicates the frame structure of one or more time units of the second node. The combination of multiplexing operation and availability indicates the multiplexing operation on one or more time units of the second node, and indicates the availability of one or more time units of the second node.

In an example, the obtaining module 1701 is configured to obtain the combined identification code ID of the first operation combination indicated by the first node through notification signaling; wherein, the notification signaling includes F1-AP signaling, RRC signaling, MAC CE , Any one of DCI, DCI includes DCI format 2_x, or DCI format 2_5, or DCI format 2_0.

Exemplarily, the aforementioned DCI may be interleaved and coded through the first RNTI.

In an example, the obtaining module 1701 is used to obtain the combination ID of the first operation combination from the configured first operation combination in an agreed or preset manner.

In an example, the determination module 1702 is configured to determine F according to the first operation combination when the multiplex operation in one time unit corresponds to the elastic transmission F type resource of the first type unit of the second node The transmission direction of the type resource; and/or, in the case that the multiplex operation in one time unit corresponds to the F type resource of the second type unit of the second node, determine the transmission of the F type resource according to the first operation combination direction.

Optionally, the determining module 1702 can also be used to determine the transmission direction of the second-type unit of the second node according to the instructions of the multiplexing operation combination when the foregoing device performs multiplexing operations; and/or, in the foregoing device In the case of performing a multiplexing operation, the transmission direction of the first type unit of the second node is determined according to the instruction of the multiplexing operation combination.

Optionally, the determining module 1702 may also determine to perform multiplexing at the second node according to the first operation combination when the multiplexing operation in one time unit corresponds to the F-type resource of the first type unit of the second node. The transmission direction of the F-type resource during operation; and/or, in the case that the multiplex operation in one time unit corresponds to the F-type resource of the second-type unit of the second node, it is determined to be in the first operation combination according to the first operation combination. The transmission direction of F-type resources when the two nodes perform multiplexing operations.

In an example, the determination module 1702 may also be used to determine that the first operation combination indicates that the transmission direction of the first operation combination is inconsistent with the transmission direction of the time unit of the first type unit of the second node. Invalid indication; and/or, in the case where the transmission direction indicated by the first operation combination is inconsistent with the transmission direction of the time unit of the second type unit of the second node, it is determined that the indication of the first operation combination is an invalid indication.

In the case that the DCI includes DCI format 2_5, the determination module 1702 can be used to determine the availability of the time unit corresponding to the TDM indicated by the combination ID, or to determine the multiplexing operation of the time unit corresponding to the no-TDM indicated by the combination ID, or , Determine the multiplex operation and availability of the corresponding time unit indicated by the combination ID.

The determining module 1702 can be used to determine the multiplex operation of the time unit indicated by the combination ID when the DCI includes the DCI format 2_0, if the time unit of the first type unit is UL or DL; or, if the DCI includes the DCI format In the case of 2_0, if the time unit of the first type unit is an F unit, the frame structure of the time unit indicated by the combination ID is determined.

Exemplarily, the judging module 1702 can also be used to judge the transmission according to the notification signaling of the later sending time when the transmission direction indicated by the first operation combination is inconsistent with the resource transmission direction of the first type unit of the second node. Direction; and/or, in the case where the transmission direction indicated by the first operation combination is inconsistent with the resource transmission direction of the second type unit of the second node, the transmission direction is determined according to the notification signaling after the transmission time; wherein, the transmission time The later notification signaling includes signaling that indicates the first operation combination and signaling that indicates the resource direction of the second node.

In an example, the obtaining module 1701 may also be used to obtain the first operation combination of the configured second node; or, obtain the first operation combination of the second type unit of the configured second node; or, obtain the first operation combination of the configured second node. The first operation combination of the cell corresponding to the second type unit of the second node; or, obtain the first operation combination of the configured cell corresponding to the second type unit of the second node and the component carrier corresponding to the first type unit of the second node .

Exemplarily, the determining module 1702 may also be used to determine the time when the notification signaling takes effect according to the offset included in the first operation combination; wherein the notification signaling is used to indicate the first operation combination.

The determining module 1702 may also determine the timing of the time unit corresponding to the first operation combination according to the timing of the time unit of the cell corresponding to the second type unit of the second node; or, according to the component carrier of the first type unit of the second node The timing of the time unit determines the timing of the time unit corresponding to the first operation combination.

Optionally, the determining module 1702 may also be used to determine the duration of the time unit corresponding to the first operation combination according to the subcarrier interval of the time unit of the cell corresponding to the second type unit of the second node; or, according to the second The reference subcarrier interval of the cell corresponding to the second type unit of the node determines the duration of the time unit corresponding to the first operation combination.

Optionally, the determining module 1702 may also determine the duration of the time unit corresponding to the first operation combination according to the subcarrier interval of the time unit of the component carrier corresponding to the first type unit of the second node; or, according to the second node The reference subcarrier interval of the time unit of the component carrier corresponding to the unit of the first type is determined to determine the duration of the time unit corresponding to the first operation combination.

The multiplexing operation device provided in this embodiment is used to implement the multiplexing operation method of the embodiment shown in FIG.

Figure 18 is a schematic structural diagram of a network node provided by an embodiment of this specification. As shown in Figure 18, the network node includes a processor 1801 and a memory 1802; the number of processors 1801 in the network node can be one or more One, in FIG. 18, a processor 1801 is taken as an example; the processor 1801 and the memory 1802 in the network node can be connected through a bus or other methods. In FIG. 18, a connection through a bus is taken as an example.

The memory 1802, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, as shown in the method corresponding to any of the embodiments in Figure 4b, Figure 5, Figure 6, Figure 13, and Figure 14 in this specification. Program instructions/modules. The processor 1801 implements the above-mentioned method in the embodiments of FIG. 4b, FIG. 5, FIG. 6, FIG. 13, and FIG. 14 by running software programs, instructions, and modules stored in the memory 1802.

The memory 1802 may mainly include a storage program area and a storage data area. The storage program area can store an application program required by the operating system and at least one function; the storage data area can store data created based on the use of the set-top box. In addition, the memory 1802 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk memory device, flash memory device, or other non-volatile solid-state memory. Pieces.

In an example, where possible, the processor in the node may also implement the above subscription data update method through hardware circuits such as internal logic circuits and gate circuits.

The embodiment of this specification further provides a readable and writable storage medium for computer storage. The storage medium stores one or more programs. When one or more programs can be executed by one or more processors, it can be implemented as The method provided in any one of the embodiments of FIG. 4b, FIG. 5, FIG. 6, FIG. 13, and FIG. 14.

All or some of the steps in the method disclosed above, and the functional modules/units in the device can be implemented as software, firmware, hardware, and appropriate combinations thereof.

In hardware implementations, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical elements; for example, a physical element may have multiple functions, or a function or step may be defined by Several physical elements are implemented in cooperation. Some physical elements or all physical elements can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as a dedicated product. Body circuit. Such software may be distributed on computer-readable media, and computer-readable media may include computer storage media (or non-transitory media) and communication media (or temporary media). The term computer storage media includes volatile and non-volatile, removable and non-removable implemented in any method or technology used to store information (such as computer-readable instructions, data structures, program modules, or other data) In addition to the media. Computer storage media include but are not limited to random access memory (Random Access Memory, RAM), read-only memory (Read-Only Memory, ROM), and electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only). Only Memory, EEPROM), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory, CD-ROM), Digital Versatile Disc (DVD) or other optical disc storage, Magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other media that can be used to store desired information and that can be accessed by a computer. Communication media usually include computer-readable instructions, data structures, program modules, or other data in modulated signals such as carrier waves or other transmission mechanisms, and may include any information delivery media.

S4001, S401, S501, S502, S601, S602, S1301, S1401, S1402: steps 1501: Indication module 1502: Configuration module 1503: Get the module 1601: Configure the module 1701: Acquisition module 1702: Judgment module 1801: processor 1802: memory

Figure 1 is a schematic diagram of the relationship between nodes in a multi-hop network; Fig. 2 is a schematic diagram showing that the downlink receiving operation of IAB-MT has several time delays relative to the uplink receiving operation of IAB-DU; Fig. 3 is a schematic diagram showing that the uplink transmission operation of IAB-MT has a certain time advance relative to the downlink transmission operation of IAB-DU; FIG. 4a is a flowchart of a multiplexing operation method provided by an embodiment of this specification; Figure 4b is a flow chart of a multiplexing operation method provided by an embodiment of this specification; FIG. 5 is a flowchart of a multiplexing operation method provided by an embodiment of this specification; FIG. 6 is a flowchart of a multiplexing operation method provided by an embodiment of this specification; FIG. 7 is a schematic diagram of a combination of multiple operations provided by an embodiment of this specification; FIG. 8 is a schematic diagram of a multiple operation combination of several time units provided by an embodiment of this specification; FIG. 9 is a schematic diagram of a combined ID provided by an embodiment of this specification; FIG. 10 is a schematic diagram of time-domain distribution of TDM and no-TDM of a second node provided by an embodiment of this specification; FIG. 11 is a schematic diagram of a combined ID provided by an embodiment of this specification; FIG. 12 is a schematic diagram of a frame structure provided by an embodiment of this specification; FIG. 13 is a flowchart of a multiplexing operation method provided by an embodiment of this specification; FIG. 14 is a flowchart of a multiplexing operation method provided by an embodiment of this specification; FIG. 15 is a schematic structural diagram of a multiplex operation device provided by an embodiment of this specification; Figure 15a is a schematic structural diagram of a multiplex operation device provided by an embodiment of this specification; Figure 15b is a schematic structural diagram of a multiplex operating device provided by an embodiment of this specification; Figure 15c is a schematic structural diagram of a multiplex operating device provided by an embodiment of this specification; FIG. 16 is a schematic structural diagram of a multiplex operation device provided by an embodiment of this specification; FIG. 17 is a schematic structural diagram of a multiple operation device provided by an embodiment of this specification; FIG. 18 is a schematic diagram of the structure of a network node provided by an embodiment of this specification.

S501, S502: steps

Claims (40)

A multiplexing operation method applied to a first node, including: Instruct a first operation combination to a second node; Wherein, the first operation combination includes one of the following: a combination of multiple operations, a combination of multiple operations and frame structure, and a combination of multiple operations and availability. The method according to claim 1, wherein the combination of multiplexing operations is used to indicate multiplexing operations on at least one time unit of the second node, and the multiplexing operations include time division multiplexing (TDM) and non-time division multiplexing (TDM). Multiplexing (no-TDM), Space Division Multiplexing (SDM), Frequency Division Multiplexing (FDM), a multiplexing mode 1, a multiplexing mode 2, a multiplexing mode three, a multiplexing mode four, not One of the no-limited; among them, The multiplexing mode one means that the first-type unit in the second node performs uplink transmission, while the second-type unit in the second node performs downlink transmission. The second multiplexing mode means that the first-type unit in the second node performs downlink reception, while the second-type unit in the second node performs uplink reception. The multiplexing mode three means that the first-type unit in the second node performs downlink reception, while the second-type unit in the second node performs downlink transmission. The multiplexing mode four indicates that the first-type unit in the second node performs uplink transmission, while the second-type unit in the second node performs uplink reception; The combination of the multiplexing operation and the frame structure is used to indicate the multiplexing operation on at least one time unit of the second node, and indicate the frame structure of at least one time unit of the second node; and The combination of multiplexing operation and availability is used to indicate the multiplexing operation on at least one time unit of the second node, and indicate the availability of at least one time unit of the second node. The method according to claim 1 or 2, wherein the step of instructing the first operation combination to the second node includes: The first node indicates the combined identification code ID of the first operation combination to the second node through a notification signaling; Wherein, the notification signaling includes one of a radio resource control (RRC) signaling, a medium access control control unit (MAC CE), and a downstream control indication (DCI). The DCI includes DCI format 2_x, DCI format 2_5 , Or DCI format 2_0. The method according to claim 3, wherein the DCI is interleaved with a first wireless network temporary identification number (RNTI). The method according to claim 2, wherein, in the case that a multiplex operation in a time unit corresponds to the elastic transmission F type resource of the first type unit of the second node, the first operation combination is used to indicate the Transmission direction of F-type resources. The method according to claim 2, wherein, in the case that the multiplex operation in one time unit corresponds to the elastic transmission F type resource of the first type unit of the second node, the first operation combination is used to indicate When the second node performs a multiplexing operation, the transmission direction of the F-type resource. The method according to claim 2, wherein the first operation combination is used to indicate the transmission direction of the second type unit of the second node when the second node performs a multiplexing operation. The method according to claim 2, wherein, in the case that the transmission direction indicated by the first operation combination is inconsistent with the transmission direction of the time unit of the first type unit of the second node, the indication of the first operation combination is Invalid instructions. The method according to claim 3, wherein, when the DCI includes DCI format 2_5, the combined ID is used to indicate the availability of the time unit corresponding to TDM, or the combined ID is used to indicate the time corresponding to no-TDM The multiplex operation of the unit, or the combination ID is used to indicate the multiplex operation and availability of the corresponding time unit. The method according to claim 3, wherein, in the case where the DCI includes DCI format 2_0 and the time unit of the first type unit is an F unit, the combination ID indicates the frame structure of the time unit; Or, in the case that the DCI includes DCI format 2_0, and the time unit of the first type unit is uplink (UL) or downlink (DL), the combined ID indicates the multiplexing operation of the time unit. The method according to claim 3, wherein when the resource transmission direction of the first type unit of the second node is inconsistent with the transmission direction indicated by the first operation combination, it is determined according to the notification signaling that is sent later The transmission direction of the first type unit of the second node; Wherein, the notification signaling with a later sending time includes signaling indicating the first operation combination and signaling with a later time among the signaling indicating the resource direction of the second node. The method according to claim 1 or 2, further comprising: Configuring the first operation combination includes: Configure the first operation combination of the second node; or, Configure the first operation combination of the cell corresponding to the second type unit of the second node and the component carrier corresponding to the first type unit of the second node. The method according to any one of claim items 1 to 3, wherein the first operation combination includes an offset, and the offset is used to indicate a time offset for the notification signaling to take effect, and the notification signaling is used to indicate The first operation combination. The method according to claim 13, wherein: The timing of the time unit corresponding to the first operation combination is determined according to the timing of the time unit of the cell corresponding to the second type unit of the second node; or, The timing of the time unit corresponding to the first operation combination is determined according to the timing of the component carrier of the first type unit of the second node. A multiplexing operation method applied to a fourth node, including: Configure a first operation combination; Wherein, the first operation combination includes a first operation combination of a second node, and the first operation combination of the second node includes one of the following: a multiplexing operation combination, a multiplexing operation and frame structure combination, and a multiplexing operation Combine with usability. The method according to claim 15, wherein: The multiplex operation combination is used to indicate the multiplex operation on at least one time unit of the second node. The multiplex operation includes TDM, no-TDM, SDM, FDM, a multiplex mode one, a multiplex mode two, One of the multiplex mode three, one multiplex mode four, and no-limited; among them, The multiplexing mode one means that the first-type unit in the second node performs uplink transmission, while the second-type unit in the second node performs downlink transmission. The second multiplexing mode means that the first-type unit in the second node performs downlink reception, while the second-type unit in the second node performs uplink reception. The multiplexing mode three means that the first-type unit in the second node performs downlink reception, while the second-type unit in the second node performs downlink transmission. The multiplexing mode four indicates that the first-type unit in the second node performs uplink transmission, while the second-type unit in the second node performs uplink reception; The combination of the multiplexing operation and the frame structure is used to indicate the multiplexing operation on at least one time unit of the second node, and indicate the frame structure of at least one time unit of the second node; and The combination of multiplexing operation and availability is used to indicate the multiplexing operation on at least one time unit of the second node, and indicate the availability of at least one time unit of the second node. The method according to claim 15 or 16, wherein the step of configuring the first operation combination includes: The fourth node configures the combined identification code ID of the first operation combination to the second node or the first node through an F1 application layer protocol (F1-AP) signaling. The method according to claim 15, wherein, in the case that the first operation combination includes the operation combination of the second node, the step of configuring the first operation combination includes: Configure the first operation combination of the second node; or, Configure the first operation combination of the cell corresponding to the second type unit of the second node and the component carrier corresponding to the first type unit of the second node. A multiplexing operation method applied to a second node, including: The second node obtains a first operation combination; The second node determines the transmission direction according to the first operation combination; Wherein, the first operation combination includes one of the following: a combination of multiple operation, a combination of multiple operation and frame structure, and a combination of multiple operation and availability. The method according to claim 19, wherein: The multiplex operation combination is used to indicate the multiplex operation on at least one time unit of the second node. The multiplex operation includes TDM, no-TDM, SDM, FDM, a multiplex mode one, a multiplex mode two, Any one of one multi-mode three, one multi-mode four, no-limited; The multiplexing mode one means that the first-type unit in the second node performs uplink transmission, while the second-type unit in the second node performs downlink transmission. The second multiplexing mode means that the first-type unit in the second node performs downlink reception, while the second-type unit in the second node performs uplink reception. The multiplexing mode three means that the first-type unit in the second node performs downlink reception, while the second-type unit in the second node performs uplink transmission. The multiplexing mode four indicates that the first-type unit in the second node performs uplink transmission, while the second-type unit in the second node performs uplink reception; The combination of the multiplexing operation and the frame structure is used to indicate the multiplexing operation on one or more time units of the second node, and indicate the frame structure of at least one time unit of the second node; and The combination of multiplexing operation and availability is used to indicate the multiplexing operation on one or more time units of the second node, and indicate the availability of at least one time unit of the second node. The method according to claim 19 or 20, wherein the step of obtaining the configured first operation combination by the second node includes: The second node obtains the combined identification code ID of the first operation combination indicated by the first node through a notification signaling; The notification signaling includes one of F1-AP signaling, RRC signaling, MAC CE, and DCI, and the DCI includes DCI format 2_x, or DCI format 2_5, or DCI format 2_0. The method according to claim 21, wherein the DCI is interleaved and coded through the first RNTI. The method according to claim 19 or 20, wherein the step of obtaining the configured first operation combination by the second node includes: The second node obtains the combination ID of the first operation combination from the configured first operation combination in an agreed or preset manner. The method according to claim 19 or 20, wherein the step of determining the transmission direction by the second node according to the first operation combination includes: In the case that the multiplex operation in a time unit corresponds to the flexible transmission of the F-type resource of the first-type unit of the second node, the second node determines the transmission direction of the F-type resource according to the first operation combination. The method according to claim 19 or 20, wherein the step of determining the transmission direction by the second node according to the first operation combination includes: In the case that the second node performs a multiplexing operation, the second node determines the transmission direction of the second type unit of the second node according to the indication of the multiplexing operation combination. The method according to claim 19 or 20, wherein the step of determining the transmission direction by the second node according to the first operation combination includes: In the case that the multiplexing operation in a time unit corresponds to the flexible transmission F-type resource of the first type unit of the second node, the second node determines to perform multiplexing at the second node according to the first operation combination The transmission direction of the F-type resource in the case of operation. The method according to claim 19 or 20, further comprising: In the case that the transmission direction indicated by the first operation combination is inconsistent with the transmission direction of the time unit of the unit of the first type of the second node, the second node determines that the indication of the first operation combination is an invalid indication. According to the method described in claim 21, in the case that the DCI includes DCI format 2_5, the method further includes: The second node determines the availability of the time unit corresponding to the TDM indicated by the combination ID, or the second node determines the multiplexing operation of the time unit corresponding to the no-TDM indicated by the combination ID, or the second node determines the The multiplex operation and availability of the corresponding time unit indicated by the combination ID. According to the method described in claim 21, when the DCI includes DCI format 2_0 and the time unit of the first type unit is uplink UL or downlink DL, the method further includes: The second node determines the multiplexing operation of the time unit indicated by the combination ID; Or, in the case that the DCI includes DCI format 2_0, and the time unit of the first type unit is an F unit, the method further includes: The second node determines the frame structure of the time unit indicated by the combination ID. The method according to any one of claim items 19 to 21, wherein the step of the second node determining the transmission direction according to the first operation combination includes: In the case that the transmission direction indicated by the first operation combination is inconsistent with the resource transmission direction of the first type unit of the second node, the second node determines the transmission direction according to the notification signaling that is sent later; Wherein, the notification signaling with a later sending time includes signaling indicating the first operation combination and signaling with a later time among the signaling indicating the resource direction of the second node. The method according to claim 19, wherein the step of obtaining the configured first operation combination by the second node includes: The second node obtains the configured first operation combination of the second node; or, The second node obtains the configured first operation combination of the cell corresponding to the second type unit of the second node and the component carrier corresponding to the first type unit of the second node. The method according to any one of claims 19 to 21, further comprising: The second node determines the effective time of the notification signaling according to the offset included in the first operation combination; Wherein, the notification signaling is used to indicate the first operation combination. The method according to claim 32, further comprising: The second node determines the timing of the time unit corresponding to the first operation combination according to the timing of the time unit of the cell corresponding to the second type unit of the second node; or, The second node determines the timing of the time unit corresponding to the first operation combination according to the timing of the time unit of the component carrier of the unit of the first type of the second node. The method according to claim 33, further comprising: The second node determines the duration of the time unit corresponding to the first operation combination according to the subcarrier interval of the time unit of the cell corresponding to the second type unit of the second node; or, The second node determines the duration of the time unit corresponding to the first operation combination according to the reference subcarrier interval of the cell corresponding to the second type unit of the second node. The method according to claim 33, further comprising: The second node determines the duration of the time unit corresponding to the first operation combination according to the subcarrier interval of the time unit of the component carrier corresponding to the first type unit of the second node; or, The second node determines the duration of the time unit corresponding to the first operation combination according to the reference subcarrier interval of the time unit of the component carrier corresponding to the unit of the first type of the second node. A multiplex operation device includes: an indication module configured to indicate a first operation combination to a second node. A multiplex operation device includes: a configuration module configured to configure a first operation combination; wherein the first operation combination includes a first operation combination of a second node, and the first operation combination of the second node includes The following one: a combination of multiple operations, a combination of multiple operations and frame structure, and a combination of multiple operations and availability. A multi-tasking operation device includes: an acquisition module and a determination module; wherein: The obtaining module is set to obtain a first operation combination; and The determination module is set to determine the transmission direction according to the first operation combination. A network node includes: a memory, a processor, and a computer program stored on the memory and capable of running on the processor, wherein: when the processor executes the computer program, it is implemented as a request item The multiplex operation method described in any one of 1 to 14, or the multiplex operation method described in any one of claim items 15 to 18, or the multiplex operation method described in any one of claim items 19 to 35. A computer-readable storage medium storing a computer program that, when executed by a processor, implements the multiplex operation method according to any one of claim items 1 to 14, or any one of claim items 15 to 18 The multiplex operation method is the multiplex operation method described in any one of claim items 19 to 35.

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