Resource reuse indication method, apparatus, and relay node

Abstract

The application discloses a resource multiplexing indication method, device and relay node, and belongs to the communication field. The method comprises the following steps: determining a multiplexing mode of a relay node based on target information, wherein the target information comprises at least one of the following: multiplexing mode indication information, timing mode information and resource type information. According to the embodiment of the application, the interference in the system can be reduced, and the resource utilization rate in the system can be improved.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a resource reuse indication method, apparatus and relay node. Background Technology

[0002] Currently, in New Radio (NR) systems, Integrated Access Backhaul (IAB) can provide extended coverage and enhanced capacity for NR cells. The access node that supports radio access for User Equipment (UE, also known as terminal equipment) and performs radio backhaul is called an IAB node (IABN). The access node that provides radio backhaul functionality to the IAB node to enable the UE to connect to the Core Net (CN) is called the donor IAB node. The donor IAB communicates with the core network via a wired connection. Data between the UE and access nodes is transmitted via a radio access link, and data between access nodes is transmitted via a radio backhaul link.

[0003] In an IAB network architecture that supports separate deployment of Central Unit (CU) and Distributed Unit (DU), an IAB node (IABN) includes a DU functional module and a Mobile Termination (MT) functional module. Using the MT functional module, an access node (IABN) can find an upstream access node (Parent IABN, P-IABN) and establish a radio backhaul link with the upstream access node's DU. After establishing a complete backhaul link, an IAB node activates its DU function, which provides cell services, i.e., the DU can provide access services to the UE. A self-backhaul loop contains a host IAB node, and the DU functional modules of all IAB nodes in this self-backhaul loop can be connected to a CU node, i.e., the CU functional module of the host IAB node.

[0004] Furthermore, in the IAB network architecture, resource multiplexing between the MT (Medium-Level Transmission) and DU (Digital-Level Transmission) functional modules can include Frequency Duplex Multiplexing (FDM), Spatial Duplex Multiplexing (SDM), or Co-frequency Co-time Full Duplex (CCFD) multiplexing. However, the resource configuration and scheduling of the MT functional modules of an IAB node are configured by the parent IAB node through Radio Resource Control (RRC) signaling and Downlink Control Information (DCI), while the resource configuration of the DU functional modules of an IAB node is configured by the donor CU. However, when scheduling the resource transmission of the MT functional modules of an IAB node, the parent IAB node does not know the data to be transmitted by the DU functional modules of the IAB node, nor the uplink (UL) data of the next-hop node (i.e., the MT functional module or UE) of the IAB node. Therefore, it does not know whether multiplexing scheduling between the MT and DU functional modules is feasible, which may lead to insufficient resource utilization and reduced spectrum efficiency of the IAB node.

[0005] Therefore, how to configure or schedule the resources of the MT and DU functional modules to achieve different reuse methods at the IAB node and avoid mismatch between the MT and DU functional modules has become an urgent technical problem to be solved. Summary of the Invention

[0006] The purpose of this application is to provide a resource reuse indication method, apparatus, and device to solve the problems of insufficient resource utilization and low spectrum utilization efficiency of IAB nodes.

[0007] Firstly, a resource reuse indication method is provided, applied to relay nodes, the method comprising:

[0008] The multiplexing mode of the relay node is determined based on the target information, which includes at least one of the following: multiplexing mode indication information; timing mode information; resource type information.

[0009] Secondly, a resource reuse indication device is provided, the device comprising:

[0010] The determination module is used to determine the multiplexing mode of the relay node based on the target information, wherein the target information includes at least one of the following: multiplexing mode indication information; timing mode information; resource type information.

[0011] Thirdly, a relay node is provided, comprising: a memory, a processor, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0012] Fourthly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0013] Fifthly, a computer program product is provided, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0014] In a sixth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being used to run relay node programs or instructions to implement the steps of the method described in the first aspect.

[0015] This application provides a method for indicating a multiplexing mode, which can accurately determine the multiplexing mode of a relay node based on acquired target information, so as to configure or schedule the resources of the relay node based on the multiplexing mode. The target information may include at least one of multiplexing mode indication information, timing mode information, and resource type information. Specifically, the multiplexing mode indication information can be used to explicitly or implicitly indicate the multiplexing mode of the relay node, and the timing mode information or resource type information can be used to implicitly indicate the multiplexing mode of the relay node. Thus, through this embodiment, resource multiplexing corresponding to the multiplexing mode determined based on the target information can be achieved at the relay node, avoiding insufficient resource utilization and low spectrum utilization efficiency, thereby reducing interference in the system and improving resource utilization. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This diagram illustrates a block diagram of a wireless communication system to which embodiments of this application may be applied;

[0018] Figure 2 This diagram illustrates the hop-crossing multiplexing scheduling relationship in an IAB network according to an embodiment of this application.

[0019] Figure 3This is a flowchart illustrating a resource reuse instruction method in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the structure of a resource reuse indicator device according to an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the structure of a communication device according to an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the structure of a relay node in an embodiment of this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. However, the following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description, although these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0026] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle UE (VUE), pedestrian UE (PUE), etc. Wearable devices include wristbands, headphones, glasses, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0027] In this embodiment of the application, when SDM, FDM, or CCFD is used across hops in an IAB network, it involves the UE or child IAB node (C-IABN, which can be referred to as the first node), the current IAB node (referred to as the second node or the first IAB node), and the parent IAB node (P-IABN, referred to as the third node or the second IAB node). The data transmission for each hop is scheduled by different IAB nodes. Specifically, the data transmission for hop Hop1 (the first hop) between the first and second nodes is scheduled by the second node (the first IAB node), and the data transmission for hop Hop2 (the second hop) between the second and third nodes is scheduled by the third node (the second IAB node), and so on. Figure 2 As shown.

[0028] The aforementioned spatial division multiplexing (SDM) refers to an IAB node simultaneously receiving a Physical Downlink Shared Channel (PDSCH) from its parent IAB node and a Physical Uplink Shared Channel (PUSCH) from its child IAB node or UE on the same time-frequency resources; or an IAB node simultaneously sending a PUSCH to its parent IAB node and a PDSCH to its child IAB node or UE on the same time-frequency resources.

[0029] The aforementioned Frequency Division Multiplexing (FDM) refers to an IAB node simultaneously receiving PDSCH from its parent IAB node and PUSCH from its child IAB node or UE on different frequency resources; or an IAB node simultaneously sending PUSCH to its parent IAB node and PDSCH to its child IAB node or UE on different frequency resources.

[0030] The aforementioned simultaneous full-duplex on the same frequency refers to an IAB node simultaneously receiving PDSCH from its parent IAB node and transmitting PDSCH to its child IAB node or UE on the same time-frequency resources; or an IAB node simultaneously transmitting PUSCH to its parent IAB node and receiving PUSCH from its child IAB node or UE on the same time-frequency resources. Multiple Panel Transmission Reception (MPTR) is a technique where IAB nodes use different antenna modules (panels) to simultaneously transmit and receive. For example, an IAB node may be equipped with two antenna modules, where one module receives while the other transmits. MPTR allows for greater isolation between the transmitting and receiving antenna modules, reducing interference from transmission to reception to some extent.

[0031] The duplexing mode between the DU and MT functional modules of an IAB node is divided into half-duplex and full-duplex modes. In full-duplex mode, the DU and MT functional modules can transmit and receive simultaneously. Therefore, under FDM or SDM multiplexing, the transmit and receive operations of the DU and MT functional modules can be performed in the following ways:

[0032] (1) DU-TX & MT-TX. That is, the DU function module is configured as downlink (DL) and the MT function module is configured as uplink (UL); or the DU function module has actual DL transmission and the MT function module has actual UL transmission.

[0033] (2) DU-RX & MT-RX. That is, the DU function module is configured as UL and the MT function module is configured as DL; or the DU function module has actual UL reception and the MT function module has actual DL reception.

[0034] (3) DU-TX & MT-RX. That is, the DU function module is configured as DL and the MT function module is configured as DL; or the DU function module has actual DL transmission and the MT function module has actual DL reception.

[0035] (4) DU-RX & MT-TX. That is, the DU function module is configured as UL and the MT function module is configured as UL; or the DU function module has actual UL reception and the MT function module has actual UL transmission.

[0036] In summary, the MT and DU functional modules of the IAB node can be reused in the following ways:

[0037] (1) SDM TX: MT TX, DU TX.

[0038] (2) SDM RX: MT RX, DU RX.

[0039] (3) FDM TX: MT TX, DU TX.

[0040] (4) FDM RX: MT RX, DU RX.

[0041] (5) MPTR UL: MT TX, DU RX.

[0042] (6)MPTR DL:MT RX,DU TX.

[0043] (7) MT TX, MT RX, DU TX, and DU RX are supported simultaneously.

[0044] Among them, DU TX and DU DL are interchangeable, MT TX and MT UL are interchangeable, DU RX and DU UL are interchangeable, and MT RX and MT DL are interchangeable.

[0045] In addition, for the resource configuration of the DU function module of the IAB node, the Donor node configures the resources of the DU function module through F1-C and signaling gNB-DU resource configuration. This includes the configuration of DL / UL / flexiblesymbols, configuring the type of symbol transmission in each time slot. This includes configurations for hard, soft, not available (NA), and shared types, configuring the availability of DUs for each type of symbol.

[0046] Specifically, if the DL / UL / flexible symbol is configured as hard, the DU function module of the IAB node can transmit / receive / transmit or receive on that symbol. If the DL / UL / flexible symbol is configured as soft, the DU function module of the IAB node can transmit / receive / transmit or receive on that symbol if the transmission / reception / transmission or reception of the DU function module of the IAB node does not affect the transmission or reception of the MT function module; otherwise, no transmission / reception / transmission or reception is performed on that symbol. Furthermore, the parent IAB node can indicate the availability of soft symbols for its DU function module via DCI format 2-5. If the DL / UL / flexible symbol is configured as NA, the DU function module of the IAB node neither transmits nor receives on that symbol.

[0047] The resource configuration of the MT function module of the IAB node is configured by the parent IAB node through RRC signaling, DCI signaling, etc. The resource type of MT is DL / UL / Flexible.

[0048] Flexible configuration can be processed as DL / UL configuration or can be processed independently of DL / UL configuration.

[0049] The resource reuse instruction method provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0050] See Figure 3As shown, this application embodiment provides a resource reuse indication method, executed by a relay node, which includes the following process steps:

[0051] Step 301: Determine the multiplexing mode of the relay node based on the target information, wherein the target information includes at least one of the following: multiplexing mode indication information; timing mode information; resource type information.

[0052] This application provides a method for indicating a multiplexing mode, which can accurately determine the multiplexing mode of a relay node based on acquired target information, so as to configure or schedule the resources of the relay node based on the multiplexing mode. The target information may include at least one of multiplexing mode indication information, timing mode information, and resource type information. Specifically, the multiplexing mode indication information can be used to explicitly or implicitly indicate the multiplexing mode of the relay node, and the timing mode information or resource type information can be used to implicitly indicate the multiplexing mode of the relay node. Thus, through this embodiment, resource multiplexing corresponding to the multiplexing mode determined based on the target information can be achieved at the relay node, avoiding insufficient resource utilization and low spectrum utilization efficiency, thereby reducing interference in the system and improving resource utilization.

[0053] Optionally, in the resource reuse indication method of this application embodiment, the relay node includes a self-backhauling IAB node. It should be noted that the relay node in this application embodiment includes, but is not limited to, IAB nodes; that is, in addition to the IAB nodes, the relay node may also include other node devices suitable for the resource reuse indication method of this application embodiment.

[0054] Specifically, when the relay node is an IAB node, step 301 can be executed as follows:

[0055] The reuse mode of the IAB node is determined based on the target information, which includes at least one of the following: reuse mode indication information; timing mode information; resource type information.

[0056] In this embodiment, a multiplexing mode indication method is provided for self-returning IAB nodes. Specifically, the multiplexing mode of the IAB node can be accurately determined based on the acquired target information. Resources of the IAB node can then be configured or scheduled based on this multiplexing mode. In particular, the resources of the MT and DU functional modules of the IAB node can be configured or scheduled to implement different multiplexing modes at the IAB node, avoiding mismatches between the MT and DU functional modules. The target information may include at least one of multiplexing mode indication information, timing mode information, and resource type information. Specifically, the multiplexing mode indication information can provide an explicit or implicit indication of the IAB node's multiplexing mode, and the timing mode information or resource type information can provide an implicit indication of the IAB node's multiplexing mode. Thus, through this embodiment, resource multiplexing corresponding to the multiplexing mode determined based on the target information can be implemented at the IAB node, avoiding insufficient resource utilization and low spectrum utilization efficiency, thereby reducing interference in the system and improving resource utilization.

[0057] Optionally, in the resource reuse indication method of this application embodiment, the above-mentioned target information can be determined by negotiation between the child IAB node and the parent IAB node in order to determine the reuse mode.

[0058] Further optionally, the child IAB node and the parent IAB node may negotiate and determine the target information in one of the following ways:

[0059] (1) The parent IAB node obtains the resource configuration information of the DU function module of the child IAB node, and the parent IAB node determines the target information based on the first configuration information and the obtained resource configuration information of the DU function module of the child IAB node.

[0060] (2) The child IAB node reports the second configuration information to the parent IAB node, and the parent IAB node determines the target information based on the second configuration information and the first configuration information.

[0061] The first configuration information is configured by the parent IAB node and is applied to the MT function module of the IAB node. Further, the first configuration information includes, but is not limited to, at least one of the following: Time Division Multiplexing (TDD) configuration; frequency domain resource configuration; time domain resource configuration; resource type configuration; downlink buffer status; uplink buffer status; power; and link budget.

[0062] The second configuration information includes, but is not limited to, at least one of the following: the desired reuse mode of the sub-IAB node;

[0063] The TDD configuration of the DU function module of the sub-IAB node;

[0064] Frequency domain resource configuration of the DU function module of the sub-IAB node;

[0065] The downlink cache status of the DU function module of the sub-IAB node;

[0066] The downlink cache status of the MT function module of the sub-IAB node;

[0067] The uplink cache status of the DU function module of the sub-IAB node;

[0068] The uplink cache status of the MT function module of the sub-IAB node;

[0069] The transmission power of the DU function module of the sub-IAB node;

[0070] The transmit power of the MT function module of the sub-IAB node;

[0071] The link budget of the DU function module of the sub-IAB node;

[0072] The link budget of the MT function module of the sub-IAB node.

[0073] Further optionally, the target information is determined by the child IAB node and the parent IAB node through negotiation via a first signaling; wherein the first signaling includes one of the following:

[0074] Specific Radio Resource Control (RRC) signaling; specific Backhaul Access Protocol (BAP) Control Protocol Data Unit (PDU) signaling; Medium Access Control (MAC) Control Element (CE) signaling; physical layer signaling.

[0075] Optionally, the target information may be determined through negotiation between the child IAB node and the parent IAB node using predefined resources, pre-configured resources, resources configured by the host IAB node, resources configured by the parent IAB node, resources configured by the child IAB node, or resources configured by the network-side device.

[0076] Optionally, in the resource reuse indication method of this application embodiment, the above-mentioned target information may be associated with at least one of the following:

[0077] (1) Capacity of the IAB node; optionally, including the transmit and / or receive capacity of the IAB node MT functional module and the transmit and / or receive capacity of the IAB node DU functional module. (2) Wireless link conditions. (3) Service model.

[0078] Optionally, in the resource reuse indication method of this application embodiment, when the target information for determining the reuse mode of the relay node includes reuse mode indication information, the reuse mode indication information may include, but is not limited to, at least one of the following:

[0079] (1) The sending and receiving status of the distributed unit DU functional module of the IAB node.

[0080] (2) The sending and receiving status of the mobile terminal MT function module of the IAB node.

[0081] The transmit and receive states of the DU function module and / or MT function module may include, but are not limited to: simultaneous transmit and receive; simultaneous transmit; simultaneous receive; one transmit and one receive; single transmit; single receive; neither transmit nor receive.

[0082] Optionally, each transmit / receive state of at least one of the DU and MT functional modules of the IAB node is configured with a corresponding number. That is, each transmit / receive state of the DU and / or MT functional modules can be indicated, in one example in the form of "number / state", for example, 0 indicates simultaneous transmit and receive; 1 indicates simultaneous transmit; 2 indicates simultaneous receive; 3 indicates one transmit and one receive.

[0083] Optionally, multiple states in the transmit / receive states of at least one of the DU and MT functional modules of the IAB node can be configured with the same number. That is, in addition to the above-described indication method of configuring a corresponding number for each transmit / receive state of the DU and / or MT functional modules, multiple states in the transmit / receive states of the DU and / or MT functional modules can also be indicated based on the same content, in one example indicating multiple transmit / receive states in the form of a "number / state".

[0084] (3) The duplex mode of the IAB node; wherein the duplex mode includes, but is not limited to, some or all of the following: MTTX; MT RX; DU TX; DU RX; MT TX, DU RX; MT RX, DU RX; MT TX, DU TX; MT TX, DU TX; MT TX, MTRX; DU TX, DU RX; MT TX, MT RX, DU TX, DU RX. Here, the duplex mode of the DU and MT functional modules of the IAB node within a certain resource can be indicated by indicating the TX / RX status of the DU and MT functional modules of the IAB node.

[0085] Further optionally, each duplex mode of the IAB node is configured with a corresponding number. That is, the duplex modes of the IAB node can be numbered to indicate an index. For example: 0 represents MT TX; 1 represents MT RX; 2 represents DU TX; 3 represents DU RX; 4 represents MT TX, DU RX; 5 represents MT RX, DU RX; 6 represents MT TX, DU RX; 7 represents MT RX, DU TX; 8 represents MT TX, MT RX, DU TX, DU RX.

[0086] Optionally, the multiple duplex modes of the IAB node can be configured with the same number. That is, in addition to configuring each duplex mode of the IAB node with a corresponding number as described above, multiple duplex modes of the IAB node can also be indicated based on the same number.

[0087] (4) Resource reuse method of IAB node; wherein, the resource reuse method includes, but is not limited to, at least one of FDM, SDM and MPTR.

[0088] Optionally, the multiplexing mode indication information includes the duplex mode in (2) and the resource multiplexing mode in (3) above; in this case, the content indicated by the multiplexing mode indication information includes, but is not limited to, at least one of the following: FDM TX, FDM RX, SDM TX, SDM RX, MPTR UL, MPTR DL.

[0089] (5) Link status corresponding to the DU function module of the IAB node.

[0090] (6) Link status corresponding to the MT function module of the IAB node.

[0091] Optionally, the above link states include, but are not limited to, UL and DL.

[0092] (7) Whether the DU and MT functional modules of the IAB node support the simultaneous use of the first resource, wherein the first resource includes at least one of the first time-domain resource and the first frequency-domain resource. That is, in one example, the DU and MT functional modules can use a certain time-domain resource and / or frequency-domain resource at the same time; while in another example, the DU and MT functional modules cannot use a certain time-domain resource and / or frequency-domain resource at the same time.

[0093] Optionally, if the DU and MT functional modules of the IAB node support simultaneous use of the first resource, the DU and MT functional modules of the IAB node shall use the first resource simultaneously in a first duplex mode; wherein, the first duplex mode is determined by a protocol (i.e., a predefined mode), the configuration of the host IAB node, the configuration of the parent IAB node, or the configuration of the network-side device. The host IAB node and the parent IAB node may also be referred to as network-side devices.

[0094] Optionally, in the resource reuse indication method of this application embodiment, the reuse mode indication information carries first information, wherein the first information can be used to indicate at least one of the following:

[0095] (1) The multiplexing mode is indicated by resource units, and the resource units include at least one of time-domain resource units and frequency-domain resource units.

[0096] The resource units can be defined by protocols or configured by network-side devices, and can also be configured via instruction signaling. Further, the time-domain resource units can be: per slot; per symbol; per resource type, such as UL / DL / Flexible, and / or Hard / Soft / NA; or per resource type of slot. The frequency-domain resource units can be: per physical resource block (PRB); per resource unit (RE); or per transmission type, such as UL / DL / Flexible, and / or Hard / Soft / NA / shared.

[0097] Furthermore, in the configuration via indication signaling, in one example, the indication signaling can indicate multiplexing mode indication information for a time period (or period), after a certain time point, or within a certain frequency domain. The IAB node determines the multiplexing mode of the resource according to the above resource unit. That is to say, the indication signaling takes effect in a certain time period (or period), after a certain time point, or within a certain frequency domain. Specifically, the IAB node finds resources that can implement the indicated multiplexing mode within the time period or frequency domain range based on the TDD configuration of the IAB MT functional module, and / or the TDD configuration of the IAB DU functional module, and / or the NA / Hard / soft configuration of the IAB DU functional module, and / or the NA / Hard / soft configuration of the parent IAB node's DU functional module, and determines that the resource adopts the indicated multiplexing mode. For example: (i) MT UL, DU DL can be regarded as being able to implement the duplex mode of MT TX, DU TX; (ii) MT UL, DU UL can be regarded as being able to implement the duplex mode of MT TX, DU RX; (iii) MT DL, DU DL can be regarded as being able to implement the duplex mode of MT RX, DU TX; (iv) MT DL, DU UL can be regarded as being able to implement the duplex mode of MT RX, DU RX. In another example, the multiplexing mode used by resources can be indicated by the indication signaling for a time period (or period), after a point in time, or within a frequency domain, according to the above-mentioned resource units. For example, the multiplexing mode of each resource type in each slot within a time period can be indicated.

[0098] In one example, an instruction signal appears in n, indicating the multiplexing mode on time unit m. The multiplexing mode on the corresponding time unit m+T*k (k=0,1,2…) is the multiplexing mode indicated in n.

[0099] (2) The multiplexing mode is indicated periodically; that is, the multiplexing mode indicated by the first information is periodically active. In the example above, an activation signaling indication multiplexing mode is effective for multiple time ranges.

[0100] (3) The reuse mode is indicated by one-shot; that is, the reuse mode indicated by the first information is effective only once and is valid for only one time range.

[0101] (4) The multiplexing mode is indicated by the time domain.

[0102] (5) The multiplexing mode is indicated by frequency domain.

[0103] (6) The multiplexing mode is indicated in both the time domain and the frequency domain.

[0104] Optionally, in the resource reuse indication method of this application embodiment, the method for obtaining the reuse mode indication information includes one of the following:

[0105] (1) Periodic acquisition; that is, the multiplexing mode indication information itself appears periodically. It can be further understood that the sending end of the multiplexing mode indication information periodically sends the multiplexing mode indication information.

[0106] (2) One-shot acquisition; that is, the multiplexing mode indication information itself is either a one-time occurrence or triggered by an event. Further, it can be understood that the sender of the multiplexing mode indication information sends the multiplexing mode indication information only once.

[0107] Optionally, in the resource reuse indication method of this application embodiment, when the target information for determining the reuse mode of the relay node includes timing mode information, the timing mode information is used to indicate a first timing mode, and the first timing mode is used to determine the reuse mode. That is, the reuse mode can be implicitly indicated based on the first timing mode.

[0108] The timing mode can refer to the timing methods of cases 1-7, i.e., the timing alignment type of MT TX / RX and DU TX / RX. When case 6 timing mode is supported, MT TX and DU TX can transmit simultaneously, supporting FDM / SDM; when case 7 timing mode is supported, MT RX and DU RX can receive simultaneously, supporting FDM / SDM; when case 6 and case 7 timing modes are supported, MT TX, DU TX, MT RX, and DU RX can support any one or more of the following: simultaneous transmission, simultaneous reception, one transmission and one reception, and simultaneous transmission and reception, and any two or more of MT / DU TX / RX can be FDM / SDM. This includes the multiplexing of MPTR UL / DL.

[0109] Optionally, in the resource reuse indication method of this application embodiment, when the target information for determining the reuse mode of the relay node includes resource type information, the resource type information includes at least one of time-domain resource type information and frequency-domain resource type information, and the at least one of the time-domain resource type information and the frequency-domain resource type information is used to determine the reuse mode.

[0110] Optionally, the resource type information is used to determine the reuse mode corresponding to the resources within the target range or each sub-resource within the resources within the target range; wherein, the target range includes a preset time period, a preset period, a preset frequency domain range, or a time domain range starting from a preset time point; and each sub-resource is obtained by dividing the resources within the target range according to resource units.

[0111] Further, optionally, the time-domain resource type information is used to indicate one of the following:

[0112] Shared resource types, dedicated resource types, hard resource types, soft resource types, and unavailable NA resource types.

[0113] The shared type indicates that the DU function module and the MT function module use the time domain resource simultaneously.

[0114] Further optionally, the frequency domain resource type information is used to indicate one of the following:

[0115] Shared resource type, proprietary resource type, hard resource type, soft resource type, and unavailable NA resource type.

[0116] The shared type indicates that the DU function module and the MT function module use the frequency domain resource simultaneously.

[0117] Optionally, the shared type indicates that the DU function module and the MT function module use both time-domain resources and frequency-domain resources simultaneously.

[0118] Optionally, when the above resource type information includes both time-domain and frequency-domain resource type information, i.e., when both time- and frequency-domain resource type configurations are supported, the availability characteristics of the resource are obtained as follows:

[0119] Method 1: If both the time domain and frequency domain are configured as hard, then the resource is a hard resource; if both the time domain and frequency domain are configured as soft, then the resource is a soft resource; if both the time domain and frequency domain are configured as NA, then the resource is an NA resource.

[0120] Method 2: Use the configuration information of the time domain resource as a reference. For example, if the time domain is configured as hard, then the resource is hard.

[0121] Method 3: Use the configuration information of the frequency domain resource as a reference. For example, if the frequency domain is configured as hard, then the resource is hard.

[0122] Optionally, in the resource reuse indication method of this application embodiment, the target information, which includes at least one of reuse mode indication information, timing mode information, and resource type information, can be indicated in at least one of the following ways:

[0123] (1) Dynamic indication, wherein the dynamic indication includes at least one of physical layer signaling indication and higher layer signaling indication. The physical layer signaling may include DCI signaling, PDCCH, feedback information, etc., and the higher layer signaling may include MACCE signaling, etc.

[0124] Further optionally, when the dynamic indication is a physical layer signaling indication, and the physical layer signaling is a first downlink control information (DCI) signaling, the first DCI signaling includes one of the following:

[0125] (a) is a DCI signaling of a first DCI format; wherein the first DCI format may be a newly defined DCI format that is different from the existing DCI formats.

[0126] (b) DCI signaling scrambled for a specific Radio Network Temporary Identifier (RNTI);

[0127] (c) DCI signaling in a specific search space (SS).

[0128] (d) DCI signaling in a specific control resource set (CORESET).

[0129] (e) is a DCI signaling in a second DCI format, which is different from the first DCI format. This second DCI format can be an existing DCI format that redefines the meaning of the DCI information. For example, it may redefine one or more special code points to represent special meanings. Or, in DCI formats 2-5, "hard" indicates activation, and "soft" and / or "NA" indicate inactivation.

[0130] (2) Semi-static indication, wherein the semi-static indication includes at least one of the following: Radio Resource Control (RRC) signaling indication, BAP Control Protocol Data Unit (PDU) signaling indication, and F1-C signaling (i.e., F1 interface control plane signaling, which is base station signaling).

[0131] Optionally, in the resource reuse indication method of this application embodiment, when the target information is determined by a combination of dynamic indication and semi-static indication, and the target information is a reuse mode configuration, a timing mode configuration, a reuse mode, or a timing mode, the reuse mode configuration, the timing mode configuration, the reuse mode, or the timing mode is indicated based on the semi-static indication, and the reuse mode configuration, the timing mode configuration, the reuse mode, or the timing mode is activated or deactivated based on the dynamic indication.

[0132] Optionally, in the resource reuse indication method of this application embodiment, when the target information is determined by a combination of dynamic indication and semi-static indication, and the target information is resource type information, the first resource type information corresponding to the first time domain range is indicated based on the semi-static indication, and the second resource type information corresponding to some or all resources within the first time domain range is indicated based on the dynamic indication; wherein, the first resource type information corresponds to the first reuse mode, and the second resource type information corresponds to the second reuse mode.

[0133] This can be understood as follows: if the second resource type information indicated by dynamic indication is different from the first resource type information indicated by semi-static indication, that is, it has changed, it means that the reuse mode may have changed accordingly, and it is the second reuse mode corresponding to the new resource type information.

[0134] Optionally, in the resource reuse indication method of this application embodiment, when the target information is determined by a combination of dynamic indication and semi-static indication, the method may further include the following:

[0135] Send feedback information, which indicates whether the activation signaling or deactivation signaling was successfully received or failed to be received.

[0136] Optionally, an acknowledgment (ACK) is sent upon successful reception, and a negative acknowledgment (NACK) is sent upon failed reception. The reverse is also possible. In one example, for a parent IAB node or donor IAB node, receiving an ACK indicates successful activation / deactivation; receiving a NACK indicates activation / deactivation failure; receiving discontinuous transmission (DTX) (or no signaling) indicates activation / deactivation failure.

[0137] Optionally, the activation signaling or deactivation signaling may carry feedback indication information.

[0138] Further optionally, the feedback indication information is used to indicate feedback resources, and the feedback resources are used to transmit the feedback information; wherein, the feedback indication information includes at least one of time-domain resource indication information and frequency-domain resource indication information.

[0139] Optionally, the feedback indication information can be carried in the activation signaling sent by the parent IAB node, such as DCI signaling or MAC CE signaling. The time-domain resource indication information can be time-domain interval indication information, or it can be used to indicate the interval between the feedback resources and the received DCI signaling or MAC CE signaling.

[0140] Optionally, the relationship between the resource receiving the activation or deactivation signaling and the feedback resource is determined based on protocol agreement or pre-configuration. That is, the location of the feedback resource can be obtained by pre-defining / pre-configuring the relationship between the feedback resource and the received activation / deactivation signaling. In one example, the MT function module of the IAB node can obtain information about the feedback resource based on the resource receiving the activation / deactivation signaling and defined rules, and then send feedback information on the feedback resource. If the parent IAB node does not receive feedback information, it considers the activation / deactivation signaling transmission to have failed.

[0141] In a specific embodiment of the resource reuse indication method of this application, the IAB donor configures the multiplexing mode of UL / DL / flexible symbols in each time slot for the IAB node via F1-C signaling. Optional values ​​include the protocol-predefined multiplexing mode indication information for the IAB's duplex mode, and optional configurations include: MT TX; MT RX; DU TX; DU RX; MT TX, DU RX; MT RX, DU RX; MT TX, DU TX; MT TX, MT RX; DU TX, DU RX; MT TX, MT RX, DU TX, DU RX. The parent IAB node obtains the configuration information of the DU function module of the IAB node and sends DCI format 2-6 to activate / deactivate the multiplexing mode on the time-domain resources.

[0142] In another specific embodiment of the resource reuse indication method of this application, the protocol predefines reuse rules. If the MT functional module and DU functional module of the IAB node support the use of the same time-frequency domain, then the MT functional module and DU functional module of the IAB node support SDM reuse; if the MT functional module and DU functional module of the IAB node are configured with the same time-domain resources but different frequency-domain resources, then the MT functional module and DU functional module of the IAB node indicate FDM / SDM reuse. The IAB donor sends an F1-C configuration to set the DU functional module as DL in time slot k, with available PRBs of 20-39; the parent IAB node configures the MT as UL in time slot k, with scheduled PRBs of 0-19. According to the predefined rules, the IAB node can support FDM reuse in time slot k. Specifically, the parent IAB node can obtain the time-frequency domain resource configuration information of the DU functional module and schedule the MT functional module of the IAB node according to the resource information of the DU functional module. That is, the parent IAB node schedules the MT functional module based on the resources of the DU functional module.

[0143] In another specific embodiment of the resource reuse indication method of this application, the protocol predefines the multiplexing mode of the IAB based on the timing mode of the IAB node. The IAB donor indicates the IAB node's multiplexing mode in the time domain via F1-C signaling, which can be configured as: timing mode case 1; timing mode case 6; timing mode case 7; timing mode case 6 and timing mode case 7. The IAB node determines the multiplexing status according to the F1-C signaling. Specifically: if timing mode case 1 is used, the MT function module and the DU function module are TDM multiplexed. If timing mode case 6 is used, the MT function module and the DU function module can support FDM / SDM TX. If timing mode case 7 is used, the MT function module and the DU function module can support FDM / SDM RX. If timing mode cases 6 and 7 are used, the MT function module and the DU function module can support FDM / SDM TX / RX. Furthermore, the parent IAB node sends the DCI activation / deactivation multiplexing status of the IAB node.

[0144] In another specific embodiment of the resource reuse indication method of this application, the protocol predefines the reuse mode indication information as the duplex mode of the IAB node, and predefines the table corresponding to the duplex mode. One table configuration is shown in Table 1 below, and the candidate values ​​for indication are: 0, 1, 2, 3, 4, 5, 6, 7. The IAB donor configures the duplex mode and resource configuration information of the IAB DU through F1-C. The selectable values ​​are [0:7]. The MT function module of the IAB node reports the desired reuse mode of the IAB node to the parent IAB node through MAC CE signaling. The parent IAB node can indicate the reuse of its active / deactivated time domain resources of the IAB node through DCI signaling according to the TDD configuration / buffer status. Among them, the DCI signaling adopts DCI format 2-5 indication. If the DCI format 2-5 indication is Hard, it means that the reuse mode indicated on the resource is active; otherwise, it is deactivated.

[0145] Table 1

[0146]

[0147] In another specific embodiment of the resource reuse indication method of this application, the gNB-DU cell resource configuration in F1-C includes the following information:

[0148] Example 1:

[0149]

[0150]

[0151] Example 2:

[0152]

[0153] Example 3:

[0154]

[0155] Example 4

[0156]

[0157]

[0158] In summary, the resource reuse indication method of this application can be based on the coordination between the MT function module and the DU function module of the IAB node to achieve simultaneous transmission of at least two of MT / DU TX / RX on certain resources, thereby improving the resource utilization of the system.

[0159] It should be noted that the resource reuse indication method executed by the relay node provided in this application embodiment can be executed by a resource reuse indication device, or by a control module in the resource reuse indication device for executing the resource reuse indication method. This application embodiment uses the execution of the resource reuse indication method by a resource reuse indication device as an example to illustrate the resource reuse indication device provided in this application embodiment.

[0160] See Figure 4 As shown, this application embodiment provides a resource reuse indication device 400, which includes:

[0161] The determination module 401 is used to determine the multiplexing mode of the relay node based on the target information, wherein the target information includes at least one of the following: multiplexing mode indication information; timing mode information; resource type information.

[0162] Optionally, in the resource reuse indication device 400 of this application embodiment, the relay node includes a self-backhauling IAB node.

[0163] Optionally, in the resource reuse indication device 400 of this application embodiment, the reuse mode indication information includes at least one of the following:

[0164] The transmission and reception status of the Distributed Unit (DU) functional module of the IAB node; the transmission and reception status of the Mobile Terminal (MT) functional module of the IAB node; the duplex mode of the IAB node; the resource multiplexing mode of the IAB node; the link status corresponding to the DU functional module of the IAB node; the link status corresponding to the MT functional module of the IAB node; whether the DU functional module and the MT functional module of the IAB node support the simultaneous use of the first resource, wherein the first resource includes at least one of the first time domain resource and the first frequency domain resource.

[0165] Optionally, in the resource reuse indication device 400 of this application embodiment, each state in the transmission and reception state of at least one of the DU function module and MT function module of the above-mentioned IAB node is configured with a corresponding number; or, multiple states in the transmission and reception state of at least one of the DU function module and MT function module of the above-mentioned IAB node are configured with the same number.

[0166] Optionally, in the resource reuse indication device 400 of this application embodiment, each of the duplex modes of the above-mentioned IAB node is configured with a corresponding number; or, multiple duplex modes of the above-mentioned IAB node are configured with the same number.

[0167] Optionally, in the resource reuse indication device 400 of this application embodiment, when the DU function module and MT function module of the above-mentioned IAB node support the simultaneous use of the first resource, the DU function module and MT function module of the IAB node use the first resource simultaneously in a first duplex mode; wherein, the first duplex mode is agreed upon by the protocol, configured by the host IAB node, configured by the parent IAB node, or configured by the network side device.

[0168] Optionally, in the resource reuse indication device 400 of this application embodiment, the reuse mode indication information carries first information, which is used to indicate one of the following:

[0169] The multiplexing mode is indicated by resource units, wherein the resource units include at least one of time-domain resource units and frequency-domain resource units; the multiplexing mode is indicated by period; the multiplexing mode is indicated by one-shot; the multiplexing mode is indicated by time domain; the multiplexing mode is indicated by frequency domain; the multiplexing mode is indicated by both time domain and frequency domain.

[0170] Optionally, in the resource reuse indication device 400 of this application embodiment, the acquisition method of the above-mentioned reuse mode indication information includes one of the following: periodic acquisition; one-shot acquisition.

[0171] Optionally, in the resource reuse indication device 400 of this application embodiment, the timing mode information is used to indicate a first timing mode, and the first timing mode is used to determine the reuse mode.

[0172] Optionally, in the resource reuse indication device 400 of this application embodiment, the above-mentioned resource type information includes at least one of time-domain resource type information and frequency-domain resource type information, and the at least one of the time-domain resource type information and the frequency-domain resource type information is used to determine the reuse mode.

[0173] Optionally, in the resource reuse indication device 400 of this application embodiment, the above-mentioned resource type information is used to determine the reuse mode corresponding to each sub-resource within the target range of resources or resources within the target range; wherein, the target range includes a preset time period, a preset period, a preset frequency domain range, or a time domain range starting from a preset time point; and each sub-resource is obtained by dividing the resources within the target range according to resource units.

[0174] Optionally, in the resource reuse indication device 400 of this application embodiment, the aforementioned time-domain resource type information and the frequency-domain resource type information are used to indicate one of the following: shared resource type, proprietary resource type, hard resource type, soft resource type, and unavailable NA resource type.

[0175] Optionally, in the resource reuse indication device 400 of this application embodiment, the above-mentioned target information is indicated by at least one of the following methods:

[0176] Dynamic indication, the dynamic indication including at least one of physical layer signaling indication and higher layer signaling indication; semi-static indication, the semi-static indication including at least one of radio resource control (RRC) signaling indication, backhaul access protocol (BAP) control protocol data unit (PDU) signaling indication and F1-C signaling indication.

[0177] Optionally, in the resource multiplexing indication device 400 of this application embodiment, when the above dynamic indication is a physical layer signaling indication and the physical layer signaling is a first downlink control information (DCI) signaling, the first DCI signaling includes one of the following:

[0178] DCI signaling in a first DCI format; DCI signaling scrambled with a specific Radio Network Temporary Identifier (RNTI); DCI signaling in a specific Search Space (SS); DCI signaling in a specific Control Resource Set (CORESET); DCI signaling in a second DCI format, which is different from the first DCI format.

[0179] Optionally, in the resource reuse indication device 400 of this application embodiment, when the target information is determined by a combination of dynamic indication and semi-static indication, and the target information is a reuse mode configuration, a timing mode configuration, a reuse mode, or a timing mode, the reuse mode configuration, the timing mode configuration, the reuse mode, or the timing mode is indicated based on the semi-static indication, and the reuse mode configuration, the timing mode configuration, the reuse mode, or the timing mode is activated or deactivated based on the dynamic indication.

[0180] Optionally, in the resource reuse indication device 400 of this application embodiment, when the target information is determined by a combination of dynamic indication and semi-static indication, and the target information is resource type information, the first resource type information corresponding to the first time domain range is indicated based on the semi-static indication, and the second resource type information corresponding to some or all resources within the first time domain range is indicated based on the dynamic indication; wherein, the first resource type information corresponds to the first reuse mode, and the second resource type information corresponds to the second reuse mode.

[0181] Optionally, the resource reuse indication device 400 in this embodiment may further include:

[0182] The sending module is used to send feedback information, which indicates whether the activation signaling or deactivation signaling was successfully received or failed to be received.

[0183] Optionally, in the resource reuse indication device 400 of this application embodiment, the activation signaling or deactivation signaling carries feedback indication information.

[0184] Optionally, in the resource reuse indication device 400 of this application embodiment, the above-mentioned feedback indication information is used to indicate feedback resources, and the feedback resources are used to transmit the feedback information; wherein, the feedback indication information includes at least one of time-domain resource indication information and frequency-domain resource indication information.

[0185] Optionally, in the resource reuse indication device 400 of this application embodiment, the relationship between the resource receiving the activation signaling or deactivation signaling and the feedback resource is determined based on protocol agreement or pre-configuration.

[0186] Optionally, in the resource reuse indication device 400 of this application embodiment, the method by which the sub-IAB node and the parent IAB node negotiate to determine the target information includes one of the following:

[0187] The parent IAB node obtains the resource configuration information of the DU function module of the child IAB node, and the parent IAB node determines the target information based on the first configuration information and the obtained resource configuration information of the DU function module of the child IAB node; the child IAB node reports the second configuration information to the parent IAB node, and the parent IAB node determines the target information based on the second configuration information and the first configuration information; wherein, the first configuration information is configured by the parent IAB node.

[0188] Optionally, in the resource reuse indication device 400 of this application embodiment, the first configuration information includes at least one of the following: time division multiplexing (TDD) configuration; frequency domain resource configuration; time domain resource configuration; resource type configuration; downlink cache status; uplink cache status; power; link budget.

[0189] Optionally, in the resource reuse indication device 400 of this application embodiment, the second configuration information includes at least one of the following:

[0190] The desired multiplexing mode of the sub-IAB node; the TDD configuration of the DU function module of the sub-IAB node; the frequency domain resource configuration of the DU function module of the sub-IAB node; the downlink buffer status of the DU function module of the sub-IAB node; the downlink buffer status of the MT function module of the sub-IAB node; the uplink buffer status of the DU function module of the sub-IAB node; the uplink buffer status of the MT function module of the sub-IAB node; the transmit power of the DU function module of the sub-IAB node; the transmit power of the MT function module of the sub-IAB node; the link budget of the DU function module of the sub-IAB node; the link budget of the MT function module of the sub-IAB node.

[0191] Optionally, in the resource reuse indication device 400 of this application embodiment, the above-mentioned target information is determined by the sub-IAB node and the parent IAB node through negotiation via a first signaling; wherein, the first signaling includes one of the following: a specific Radio Resource Control (RRC) signaling; a specific BAP Control Protocol Data Unit (PDU) signaling; a Media Access Control (MAC) Control Unit (CE) signaling; or a physical layer signaling.

[0192] Optionally, in the resource reuse indication device 400 of this application embodiment, the above-mentioned target information is determined by negotiation between the child IAB node and the parent IAB node using predefined resources, pre-configured resources, resources configured by the host IAB node, resources configured by the parent IAB node, resources configured by the child IAB node, or resources configured by the network-side device.

[0193] Optionally, in the resource reuse indication device 400 of this application embodiment, the above-mentioned target information is associated with at least one of the following: the capacity of the IAB node; the wireless link conditions; and the service model.

[0194] This application provides a method for indicating a multiplexing mode, which can accurately determine the multiplexing mode of a relay node based on acquired target information, so as to configure or schedule the resources of the relay node based on the multiplexing mode. The target information may include at least one of multiplexing mode indication information, timing mode information, and resource type information. Specifically, the multiplexing mode indication information can be used to explicitly or implicitly indicate the multiplexing mode of the relay node, and the timing mode information or resource type information can be used to implicitly indicate the multiplexing mode of the relay node. Thus, through this embodiment, resource multiplexing corresponding to the multiplexing mode determined based on the target information can be achieved at the relay node, avoiding insufficient resource utilization and low spectrum utilization efficiency, thereby reducing interference in the system and improving resource utilization.

[0195] The resource reuse indication device in this application embodiment can be a device, or it can be a component, integrated circuit, or chip in a network-side device. The device can be a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above, such as a relay node, which may include an IAB node.

[0196] The resource reuse indicator device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit it.

[0197] The resource reuse indication device provided in this application embodiment can achieve Figure 3 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0198] Optional, such as Figure 5 As shown, this application embodiment also provides a communication device 500, including a processor 501, a memory 502, and a program or instructions stored in the memory 502 and executable on the processor 501. For example, when the communication device 500 is a relay node, the program or instructions executed by the processor 501 implement the above-mentioned... Figure 3 The various processes of the corresponding resource reuse instruction method embodiments, which can achieve the same technical effect, will not be described again here to avoid repetition. The relay node includes an IAB node.

[0199] This application also provides a relay node in its embodiments. For example... Figure 6 As shown, the relay node 600 includes an antenna 601, a radio frequency (RF) device 602, and a baseband device 603. The antenna 601 is connected to the RF device 602. In the uplink direction, the RF device 602 receives information through the antenna 601 and transmits the received information to the baseband device 603 for processing. In the downlink direction, the baseband device 603 processes the information to be transmitted and sends it to the RF device 602. The RF device 602 processes the received information and transmits it through the antenna 601. Optionally, the relay node may include an IAB node.

[0200] The aforementioned frequency band processing device can be located in the baseband device 603. The method executed by the relay node in the above embodiments can be implemented in the baseband device 603, which includes a processor 604 and a memory 605.

[0201] The baseband device 603 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 6 As shown, one of the chips, for example, is a processor 604, which is connected to a memory 605 to call the program in the memory 605 and execute the relay node operation shown in the above method embodiment.

[0202] The baseband device 603 may also include a network interface 606 for exchanging information with the radio frequency device 602, such as a common public radio interface (CPRI).

[0203] Specifically, the relay node 600 in this embodiment of the invention further includes: instructions or programs stored in memory 605 and executable on processor 604, wherein processor 604 calls the instructions or programs in memory 605 to execute. Figure 4 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0204] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described resource reuse instruction method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0205] The processor is the processor in the communication device or relay node described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0206] This application also provides a computer program product, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the various processes of the above-described resource reuse instruction method embodiments and achieve the same technical effects. To avoid repetition, these will not be described again here.

[0207] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run relay node programs or instructions to implement the various processes of the above-mentioned corresponding resource reuse instruction method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0208] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0209] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0210] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0211] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A resource reuse indication method, applied to a relay node, characterized in that, The method includes: The multiplexing mode of the relay node is determined based on the target information, which includes timing mode information; wherein, the relay node includes a self-backhaul IAB node, and the target information is determined by negotiation between the child IAB node and the parent IAB node; wherein, the timing mode information is determined by negotiation between the child IAB node and the parent IAB node through Media Access Control (MAC) control unit (CE) signaling.

2. The method of claim 1, wherein, The target information also includes at least one of the following: reuse mode indication information and resource type information.

3. The method according to claim 2, characterized in that, The reuse mode indication information includes at least one of the following: The transmit and receive status of the distributed unit (DU) functional module of the IAB node; The sending and receiving status of the mobile terminal MT function module of the IAB node; The duplex mode of IAB nodes; Resource reuse methods for IAB nodes; The link status corresponding to the DU function module of the IAB node; Link status corresponding to the MT function module of the IAB node; Does the DU function module and MT function module of the IAB node support the simultaneous use of the first resource, wherein the first resource includes at least one of the first time domain resource and the first frequency domain resource? 4. The method according to claim 3, characterized in that, Each state in the transmit / receive state of at least one of the DU and MT functional modules of the IAB node is configured with a corresponding number; or... The IAB node's DU function module and MT function module have multiple states configured with the same number in their transmit and receive states.

5. The method according to claim 3, characterized in that, Each of the duplex modes of the IAB node is configured with a corresponding number; or, The IAB node is configured with the same number in multiple duplex modes.

6. The method according to claim 3, characterized in that, When the DU function module and MT function module of the IAB node support the simultaneous use of the first resource, the DU function module and MT function module of the IAB node use the first resource simultaneously in a first duplex mode. The first duplex mode is determined by the protocol, the host IAB node configuration, the parent IAB node configuration, or the network-side device configuration.

7. The method according to claim 3, characterized in that, The multiplexing mode indication information carries first information, which indicates one of the following: The multiplexing mode is indicated by resource units, and the resource units include at least one of time-domain resource units and frequency-domain resource units; The reuse mode is indicated by a period; The reuse mode is indicated by one-shot; The multiplexing mode is indicated by the time domain; The multiplexing mode is indicated in the frequency domain; The multiplexing mode is indicated in both the time and frequency domains.

8. The method according to claim 2, characterized in that, The method for obtaining the reuse mode indication information includes one of the following: Periodic acquisition; One-shot acquisition.

9. The method according to claim 1, characterized in that, The timing mode information is used to indicate a first timing mode, and the first timing mode is used to determine the multiplexing mode.

10. The method according to claim 2, characterized in that, The resource type information includes at least one of time-domain resource type information and frequency-domain resource type information, and at least one of the time-domain resource type information and the frequency-domain resource type information is used to determine the multiplexing mode.

11. The method according to claim 10, characterized in that, The resource type information is used to determine the reuse mode corresponding to the resources within the target range or the sub-resources within the resources within the target range; The target range includes a preset time period, a preset period, a preset frequency range, or a time range starting from a preset time point. Each sub-resource is obtained by dividing the resources within the target range according to resource units.

12. The method according to claim 10, characterized in that, The time-domain resource type information and the frequency-domain resource type information are used to indicate one of the following: Shared resource type, proprietary resource type, hard resource type, soft resource type, and unavailable NA resource type.

13. The method according to claim 1 or 2, characterized in that, The target information is indicated in at least one of the following ways: Dynamic indication, wherein the dynamic indication includes at least one of physical layer signaling indication and higher layer signaling indication; The semi-static indication includes at least one of the following: Radio Resource Control (RRC) signaling indication, Backhaul Access Protocol (BAP) Control Protocol Data Unit (PDU) signaling indication, and F1-C signaling indication.

14. The method according to claim 13, characterized in that, When the dynamic indication is a physical layer signaling indication, and the physical layer signaling is a first downlink control information (DCI) signaling, the first DCI signaling includes one of the following: This is the first DCI format DCI signaling; DCI signaling scrambled for a specific Radio Network Temporary Identifier (RNTI); DCI signaling in a specific search space (SS); DCI signaling in a specific control resource set CORESET; The DCI signaling is in a second DCI format, which is different from the first DCI format.

15. The method according to claim 13, characterized in that, When the target information is determined by a combination of dynamic and semi-static indications, and the target information is a multiplexing mode configuration, a timing mode configuration, a multiplexing mode, or a timing mode, the multiplexing mode configuration, the timing mode configuration, the multiplexing mode, or the timing mode is indicated based on the semi-static indication, and the multiplexing mode configuration, the timing mode configuration, the multiplexing mode, or the timing mode is activated or deactivated based on the dynamic indication.

16. The method according to claim 13, characterized in that, When the target information is determined by a combination of dynamic and semi-static indications, and the target information is resource type information, the first resource type information corresponding to the first time domain range is indicated based on the semi-static indication, and the second resource type information corresponding to some or all resources within the first time domain range is indicated based on the dynamic indication. The first resource type information corresponds to the first reuse mode, and the second resource type information corresponds to the second reuse mode.

17. The method according to claim 15 or 16, characterized in that, The method further includes: Send feedback information, which indicates whether the activation signaling or deactivation signaling was successfully received or failed to be received.

18. The method according to claim 17, characterized in that, The activation or deactivation signaling carries feedback indication information.

19. The method according to claim 18, characterized in that, The feedback indication information is used to indicate the feedback resource, and the feedback resource is used to transmit the feedback information; The feedback indication information includes at least one of time-domain resource indication information and frequency-domain resource indication information.

20. The method according to claim 17, characterized in that, The relationship between the resource receiving the activation signaling or deactivation signaling and the feedback resource is determined based on protocol agreement or pre-configuration.

21. The method according to claim 1, characterized in that, The child IAB node and the parent IAB node may negotiate and determine the target information in one of the following ways: The parent IAB node obtains the resource configuration information of the DU function module of the child IAB node, and the parent IAB node determines the target information based on the first configuration information and the obtained resource configuration information of the DU function module of the child IAB node. The child IAB node reports the second configuration information to the parent IAB node, and the parent IAB node determines the target information based on the second configuration information and the first configuration information. The first configuration information is configured by the parent IAB node.

22. The method according to claim 21, characterized in that, The first configuration information includes at least one of the following: Time Division Multiplexing (TDD) configuration; Frequency domain resource allocation; Time-domain resource allocation; Resource type configuration; Downlink cache status; Uplink cache status; power; Link budget.

23. The method according to claim 21, characterized in that, The second configuration information includes at least one of the following: The desired reuse mode for the sub-IAB node; The TDD configuration of the DU function module of the sub-IAB node; Frequency domain resource configuration of the DU function module of the sub-IAB node; The downlink cache status of the DU function module of the sub-IAB node; The downlink cache status of the MT function module of the sub-IAB node; The uplink cache status of the DU function module of the sub-IAB node; The uplink cache status of the MT function module of the sub-IAB node; The transmission power of the DU function module of the sub-IAB node; The transmit power of the MT function module of the sub-IAB node; The link budget of the DU function module of the sub-IAB node; The link budget of the MT function module of the sub-IAB node.

24. The method according to claim 1, characterized in that, The target information is determined through negotiation between the child IAB node and the parent IAB node using predefined resources, pre-configured resources, resources configured by the host IAB node, resources configured by the parent IAB node, resources configured by the child IAB node, or resources configured by the network-side device.

25. The method according to claim 1, characterized in that, The target information is associated with at least one of the following: Capacity of IAB nodes; Wireless link conditions; Business model.

26. A resource reuse indicator device, applied to a relay node, characterized in that, include: The determination module is used to determine the multiplexing mode of the self-backhaul IAB node based on target information, the target information including timing mode information; wherein, the relay node includes a self-backhaul IAB node, and the target information is determined by negotiation between the child IAB node and the parent IAB node; wherein, the timing mode information is determined by negotiation between the child IAB node and the parent IAB node through Media Access Control (MAC) control unit (CE) signaling.

27. The apparatus according to claim 26, characterized in that, The target information also includes at least one of the following: reuse mode indication information and resource type information.

28. The apparatus according to claim 27, characterized in that, The reuse mode indication information includes at least one of the following: The transmit and receive status of the distributed unit (DU) functional module of the IAB node; The sending and receiving status of the mobile terminal MT function module of the IAB node; The duplex mode of IAB nodes; Resource reuse methods for IAB nodes; The link status corresponding to the DU function module of the IAB node; Link status corresponding to the MT function module of the IAB node; Does the DU function module and MT function module of the IAB node support the simultaneous use of the first resource, wherein the first resource includes at least one of the first time domain resource and the first frequency domain resource? 29. The apparatus according to claim 28, characterized in that, Each state in the transmit / receive state of at least one of the DU and MT functional modules of the IAB node is configured with a corresponding number; or... The IAB node's DU function module and MT function module have multiple states configured with the same number in their transmit and receive states.

30. The apparatus according to claim 28, characterized in that, Each of the duplex modes of the IAB node is configured with a corresponding number; or, The IAB node is configured with the same number in multiple duplex modes.

31. The apparatus according to claim 28, characterized in that, When the DU function module and MT function module of the IAB node support the simultaneous use of the first resource, the DU function module and MT function module of the IAB node use the first resource simultaneously in a first duplex mode. The first duplex mode is determined by the protocol, the host IAB node configuration, the parent IAB node configuration, or the network-side device configuration.

32. The apparatus according to claim 28, characterized in that, The multiplexing mode indication information carries first information, which indicates one of the following: The multiplexing mode is indicated by resource units, and the resource units include at least one of time-domain resource units and frequency-domain resource units; The reuse mode is indicated by a period; The reuse mode is indicated by one-shot; The multiplexing mode is indicated by the time domain; The multiplexing mode is indicated in the frequency domain; The multiplexing mode is indicated in both the time and frequency domains.

33. The apparatus according to claim 27, characterized in that, The method for obtaining the reuse mode indication information includes one of the following: Periodic acquisition; One-shot acquisition.

34. The apparatus according to claim 26, characterized in that, The timing mode information is used to indicate a first timing mode, and the first timing mode is used to determine the multiplexing mode.

35. The apparatus according to claim 27, characterized in that, The resource type information includes at least one of time-domain resource type information and frequency-domain resource type information, and at least one of the time-domain resource type information and the frequency-domain resource type information is used to determine the multiplexing mode.

36. The apparatus according to claim 26 or 27, characterized in that, The target information is indicated in at least one of the following ways: Dynamic indication, wherein the dynamic indication includes at least one of physical layer signaling indication and higher layer signaling indication; The semi-static indication includes at least one of the following: Radio Resource Control (RRC) signaling indication, Backhaul Access Protocol (BAP) Control Protocol Data Unit (PDU) signaling indication, and F1-C signaling indication.

37. The apparatus according to claim 26, characterized in that, The target information is associated with at least one of the following: Capacity of IAB nodes; Wireless link conditions; Business model.

38. A relay node, characterized in that, include: A memory, a processor, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in any one of claims 1 to 25.

39. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 25.

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