Resource indication method and device

Abstract

The invention discloses a resource indication method and a resource indication device, which are used for realizing resource indication under the condition of multiple cells of a DU (Data Unit). The method comprises: a first node receiving indication information sent by a second node, the indication information being used for indicating an available state of a dynamic resource in a first resource corresponding to P cells, the first resource being a transmission resource for communication between the first node and a third node, the second node being a superior node of the first node, the third node is a subordinate node of the first node. The first node determines P cells indicated by the indication information in the contained N cells and determines the available state of dynamic resources in the first resources of the P cells according to the indication information, and P is larger than or equal to 1 and smaller than or equal to N.

Description

[0001] This application is a divisional application. The application number of the original application is 201980099358.5, and the original application date is August 30, 2019. The entire contents of the original application are incorporated into this application by reference.

[0002] This application claims priority to the prior application PCT / CN2019 / 100773 filed on August 15, 2019, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a resource indication method and device. Background Art

[0004] With the continuous development of mobile communication technology, spectrum resources are becoming increasingly scarce. In order to improve spectrum utilization, base station deployment will be more intensive in the future. In addition, dense deployment can also avoid the occurrence of coverage holes. The wireless relay node (RN) establishes a connection with the core network through a wireless backhaul link, which can save some fiber deployment costs. In the new radio (NR), the relay node establishes a wireless backhaul link with one or more upper nodes and accesses the core network through the upper node. The upper node can control the relay node through various signaling (for example, data scheduling, timing modulation, power control, etc.) when an access link is established between the relay node and the user equipment (UE). In addition, the relay node can provide services to one or more lower nodes. The upper node of the relay node can be a base station or another relay node. The lower node of the relay node can be a UE or another relay node. The in-band relay solution of NR is called integrated access and backhaul (IAB), and the relay node is called an IAB node. The IAB node includes a mobile termination (MT) function and a distributed unit (DU) function, wherein the MT is used for the IAB node to communicate with an upper node, and the DU is used for the IAB node to communicate with a lower node.

[0005] In order to dynamically coordinate bandwidth between the access link and the backhaul link, NR IAB will use two-level resource indication. Specifically, two-level resource indication means that the upper node configures resources for the DU of the IAB node in an explicit or implicit manner, and the resource types include at least soft and hard. Among them, hard resources refer to resources that are always available to the DU of the IAB node, while the availability of soft resources depends on the indication of the upper node. The IAB node continues to make resource indications to its lower-level nodes based on the resource indications of the upper-level node.

[0006] In some deployment scenarios, the DU of the IAB node may have multiple cells. Different DU cells may be sectors with different orientations or carriers with different frequency bands. Different DU cells may have different resource configurations, but there is currently no resource indication method for DU multi-cell situations. Summary of the invention

[0007] The embodiments of the present application provide a resource indication method and device for implementing resource indication in a DU multi-cell situation.

[0008] In the first aspect, an embodiment of the present application provides a resource indication method, the method comprising: a first node receives indication information sent by a second node, the indication information is used to indicate the available status of dynamic resources in the first resource corresponding to P cells, the first resource is a transmission resource for the first node to communicate with a third node, the second node is the upper node of the first node, and the third node is the lower node of the first node. The first node determines the P cells indicated by the indication information among the N cells included, and determines the available status of dynamic resources in the first resources of the P cells according to the indication information, wherein 1≤P≤N. In the embodiment of the present application, the indication information sent by the second node can indicate the available status of dynamic resources in the first resources of multiple cells, and the first node can determine the cell to which the indication information is applied, so that the dynamic resource delivery method in the case of multiple cells can be realized, and the available status of dynamic resources in the first resource can be accurately indicated in the case of multiple cells.

[0009] In a possible design, when the first node determines the P cells indicated by the indication information among the N cells included, the first node can determine the P cells among the N cells based on a preset rule. In the above design, the cell corresponding to the indication information is determined by the rule specified by the protocol, so that the first node and the second node can determine the indication information according to the rule, so that in the case of multiple cells, the available status of the dynamic resource in the first resource can be accurately indicated.

[0010] In one possible design, when the first node determines the P cells indicated by the indication information among the N cells included, the first node may receive first configuration information sent by the second node, where the first configuration information is used to determine the P cells. In the above design, the second node configures the cell to which the indication information applies for the first node, so that in a multi-cell situation, the available status of the dynamic resources in the first resource can be accurately indicated.

[0011] In a possible design, the preset rule may be: N cells are divided into multiple cell groups, and the P cells are one or more cells in a specified cell group in the multiple cell groups. Through the above design, the first node and the second node can determine the cell to which the indication information applies through the same rule, so that in a multi-cell case, the available status of the dynamic resource in the first resource can be accurately indicated.

[0012] In a possible design, the preset rule may be: the P cells are one or more cells whose corresponding first resources and second resources have a specified resource reuse relationship, wherein the second resource is a transmission resource for the first node and the second node to communicate. In the above design, the first node does not need to group the cells, but can directly determine the P cells according to the resource reuse relationship, thereby reducing latency and saving computing resources.

[0013] In a possible design, the preset rule may be: the P cells are one or more of the cells that are co-planar / co-directional / co-addressed / quasi-co-addressed with the mobile terminal MT of the first node. Through the above design, the first node and the second node can determine that the cell to which the indication information is applied is one or more cells that are co-planar / co-directional / co-addressed / quasi-co-addressed with the mobile terminal MT of the first node, so that in a multi-cell situation, the available status of the dynamic resources in the first resource can be accurately indicated.

[0014] In a possible design, the preset rule may be: N cells are divided into multiple cell groups, P cells are cells included in the cell set, and the cell set includes one cell in each cell group. In the above design, the indication information may indicate one cell in each cell.

[0015] In a possible design, the preset rule may be: P cells are N cells. In the above design, the indication information may indicate all cells of the first node.

[0016] In a possible design, the preset rule may be: the P cells are one or more of the cells configured by the second configuration information obtained by the first node, and the second configuration information is used to configure resources for the cells. The second node may configure resources of some cells for the first node, and through the above design, the indication information may indicate the some cells.

[0017] In a possible design, the N cells are divided into a plurality of cell groups in the following manner: the N cells are divided into a plurality of cell groups according to the resource reuse relationship between the corresponding first resources and the second resources. In the above design, the indication information may indicate different resource reuse relationships.

[0018] In one possible design, the specified resource reuse relationship may be time division multiplexing.

[0019] In one possible design, the indication information may include M first sub-information, where M is an integer greater than 0, and one first sub-information is used to indicate the available status of dynamic resources in the first resources of P cells within one or more time units. In the above design, one first sub-information can indicate multiple cells, and through this joint indication method, signaling overhead can be saved.

[0020] In one possible design, the indication information may include H second sub-information, where H is an integer greater than 0, and the second sub-information is used to indicate the available status of the dynamic resources in the first resources of a cell among P cells in one or more time units. In the above design, one second sub-information can indicate one cell, and through this method of primary cell indication, each cell can be accurately indicated.

[0021] In one possible design, the indication information may include K cell group indication information, wherein one cell group indication information corresponds to one cell group, each cell group includes at least one cell among P cells, and the cell group indication information is used to indicate the available status of the dynamic resource in the first resource of the corresponding cell group. In the above design, one cell group indication information can indicate one cell group, that is, it can indicate multiple cells, and the signaling overhead can be saved by indicating by cell group.

[0022] In one possible design, each cell group indication information may include L third sub-information, where L is an integer greater than 0, and the third sub-information is used to indicate the available status of the dynamic resources in the first resource of the cell group corresponding to the cell group indication information in one or more time units. In the above design, one third sub-information can indicate multiple cells, and through this joint indication method, signaling overhead can be saved.

[0023] In a possible design, each cell group indication information may include J fourth sub-information, and the fourth sub-information is used to indicate the available state of the dynamic resource in the first resource of a cell in the cell group corresponding to the cell group indication information in which it is located within one or more time units. In the above design, one fourth sub-information can indicate one cell, and through this method of main cell indication, each cell can be accurately indicated.

[0024] In one possible design, after the first node determines the available status of the dynamic resources in the first resources of P cells based on the indication information, the first node may determine the available status of the dynamic resources in the first resources of other cells based on the available status of the first resources of the P cells, where the other cells include one or more of the cells other than the P cells in the N cells. By design, the first node may determine the available status of the dynamic resources in the first resources of other cells that are not indicated by the indication information.

[0025] In a second aspect, the present application provides a resource indication device, which may be a first node, or a chip or chipset in the first node. The device may include a processing unit and a transceiver unit. When the device is a first node, the processing unit may be a processor, and the transceiver unit may be a transceiver; the device may also include a storage module, and the storage module may be a memory; the storage module is used to store instructions, and the processing unit executes the instructions stored in the storage module so that the first node performs the corresponding functions in the above-mentioned first aspect. When the device is a chip or chipset in the first node, the processing unit may be a processor, and the transceiver unit may be an input / output interface, a pin or a circuit, etc.; the processing unit executes the instructions stored in the storage module so that the first node performs the corresponding functions in the above-mentioned first aspect, and the storage module may be a storage module (for example, a register, a cache, etc.) in the chip or chipset, or a storage module (for example, a read-only memory, a random access memory, etc.) located outside the chip or chipset in the network device.

[0026] In a third aspect, a resource indication device is provided, comprising: a processor, a communication interface and a memory. The communication interface is used to transmit information, and / or messages, and / or data between the device and other devices. The memory is used to store computer-executable instructions. When the device is running, the processor executes the computer-executable instructions stored in the memory, so that the device executes the resource indication method as described in the first aspect or any one of the designs of the first aspect.

[0027] In a fourth aspect, the present application further provides a computer-readable storage medium, wherein instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium is run on a computer, the computer executes the resource indication method described in the first aspect or any one of the designs in the first aspect.

[0028] In a fifth aspect, the present application also provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the resource indication method described in the first aspect or any one of the designs of the first aspect.

[0029] In a sixth aspect, the present application further provides a network system, comprising a first node and a second node, wherein the first node is the device described in the second aspect or the third aspect above.

[0030] In the seventh aspect, an embodiment of the present application provides a chip, which is coupled to a memory and executes the method of the first aspect of the embodiment of the present application and any possible design thereof.

[0031] In addition, the technical effects brought about by the second to fifth aspects can be found in the description of the first aspect above and will not be repeated here.

[0032] It should be noted that, in the embodiments of the present application, “coupling” refers to two components being directly or indirectly coupled to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the architecture of an IAB system provided in an embodiment of the present application;

[0034] Figure 2 A specific schematic diagram of an IAB system provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of the structure of an IAB node provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the structure of an IAB node provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of a DU multi-cell provided in an embodiment of the present application;

[0038] Figure 6 A schematic diagram of an access link and a backhaul link provided in an embodiment of the present application;

[0039] Figure 7 A schematic diagram of a method for configuring backhaul resources provided in an embodiment of the present application;

[0040] Figure 8 A schematic diagram of an example of resource configuration of an IAB node in NR provided in an embodiment of the present application;

[0041] Fig. 9 A schematic diagram of the relationship between DU resources and MT resources of multiple cells provided in an embodiment of the present application;

[0042] Fig.10 A flowchart of a resource indication method provided in an embodiment of the present application;

[0043] Fig.11 A schematic diagram of a DU multi-cell provided in an embodiment of the present application;

[0044] Fig.12 A schematic diagram of the logical structure of a DU multi-cell and MT provided in an embodiment of the present application;

[0045] Fig.13 A schematic diagram of a soft resource indicating a DU provided in an embodiment of the present application;

[0046] Fig.14 A schematic diagram of H / S resources of two cells provided in an embodiment of the present application;

[0047] Fig.15 A schematic diagram of a joint indication provided in an embodiment of the present application;

[0048] Fig.16 A schematic diagram of a cell-by-cell indication provided in an embodiment of the present application;

[0049] Fig.17 A schematic diagram of the structure of a resource indication device provided in an embodiment of the present application;

[0050] Fig.18 A schematic diagram of the structure of a resource indication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0052] The names of all nodes and messages in this application are only set for the convenience of description. The names in the actual network may be different, and it should not be understood that this application limits the names of various nodes and messages. On the contrary, any name with the same or similar functions as the nodes or messages used in this application is regarded as the method or equivalent replacement of this application, and is within the scope of protection of this application, and will not be repeated below.

[0053] The communication system mentioned in the embodiments of the present application includes but is not limited to: a narrowband Internet of Things (NB-IoT) system, a wireless local access network (WLAN) system, a long term evolution (LTE) system, a fifth generation mobile communication (5th generation mobile networks or 5th generation wireless systems, 5G) or a communication system after 5G, such as a new radio (NR) system, a device to device (D2D) communication system, etc.

[0054] In order to better understand the embodiment of the present invention, the network architecture used in the embodiment of the present invention is described below. Figure 1 , Figure 1 A schematic diagram of the structure of a communication system applicable to an embodiment of the present application.

[0055] See also Figure 1 , Figure 1 1 is an architecture diagram of an integrated access and backhaul (IAB) system applicable to the technical solution of the present application. Figure 1 As shown, an IAB system includes at least one base station 100, one or more terminal devices (terminal) 101 served by the base station 100, one or more relay nodes (ie, IAB nodes) 110, and one or more terminal devices 111 served by the IAB node 110. Generally, the base station 100 is called a donor base station (donor next generation node B, DgNB), and the IAB node 110 is connected to the base station 100 via a wireless backhaul link 113. The donor base station is also referred to as a donor node in this application, that is, a donor node.

[0056] The base station 100 includes but is not limited to: evolved node base (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home evolved NodeB (or home node B, HNB), baseband unit (BBU), evolved LTE (eLTE) base station, NR base station (next generation node B, gNB), etc.

[0057] The terminal device includes, but is not limited to: user equipment (UE), mobile station, access terminal, user unit, user station, mobile station, remote station, remote terminal, mobile device, terminal, wireless communication device, user agent, station (ST) in wireless local access network (WLAN), cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication function, computing device, other processing device connected to wireless modem, vehicle-mounted device, wearable device, mobile station in future 5G network and terminal device in future evolved public land mobile network (PLMN) network, etc. IAB node is a specific name of relay node, which does not limit the solution of the present application. It can be one of the above-mentioned base stations or terminal devices with forwarding function, or it can be an independent device form. For example, the IAB node of the present application may also be referred to as a relay node (RN), a transmission and reception point (transmission and reception point), a relaying transmission and reception point (relaying TRP), etc.

[0058] The IAB system may also include a plurality of other IAB nodes, for example, an IAB node 120 and an IAB node 130. The IAB node 120 is connected to the IAB node 110 via a wireless backhaul link 123 to access the network. The IAB node 130 is connected to the IAB node 110 via a wireless backhaul link 133 to access the network. The IAB node 120 serves one or more terminal devices 121, and the IAB node 130 serves one or more terminal devices 131. Figure 1 In the embodiment, both IAB node 110 and IAB node 120 are connected to the network via wireless backhaul links. In the present application, the wireless backhaul links are all viewed from the perspective of relay nodes, for example, wireless backhaul link 113 is the backhaul link of IAB node 110, and wireless backhaul link 123 is the backhaul link of IAB node 120. Figure 1As shown, an IAB node, such as 120, can be connected to another IAB node 110 through a wireless backhaul link, such as 123, thereby connecting to the network. Moreover, the relay node can be connected to the network through multiple levels of wireless relay nodes. It should be understood that the use of IAB nodes in this application is only for the purpose of description, and does not mean that the solution of this application is only used in NR scenarios. In this application, IAB nodes can generally refer to any node or device with a relay function. The use of IAB nodes and relay nodes in this application should be understood to have the same meaning.

[0059] In addition, this application also involves the following basic terms or concepts.

[0060] Access link: The link between the UE and the IAB node or IAB donor. Alternatively, the access link includes the wireless link used by a node to communicate with its subordinate nodes. The access link includes an uplink access link and a downlink access link. The uplink access link is also called the uplink transmission of the access link, and the downlink access link is also called the downlink transmission of the access link.

[0061] Backhaul link: The link between an IAB node and an IAB child node or an IAB parent node. The backhaul link includes the link for downlink transmission with the IAB child node or the IAB parent node, and the link for uplink transmission with the IAB child node or the IAB parent node. The data transmission from the IAB node to the IAB parent node, or the uplink transmission received from the IAB child node is called the uplink transmission of the backhaul link. The data transmission received by the IAB node from the IAB parent node, or the data transmission to the IAB child node is called the downlink transmission of the backhaul link. In order to distinguish between the UE and the IAB node, the backhaul link between the IAB node and the IAB parent node is also called the parent backhaul link (parentBH), and the backhaul link between the IAB node and the IAB child node is called the child backhaul link (childBH).

[0062] In some cases, the lower-level backhaul link and access link of the IAB node are collectively referred to as the access link, that is, the lower-level node is regarded as a terminal device of the upper-level node. It should be understood that Figure 1 In the integrated access and backhaul system shown, one IAB node is connected to one upper node. However, in future relay systems, in order to improve the reliability of the wireless backhaul link, one IAB node, such as 120, may have multiple upper nodes providing services to one IAB node at the same time. Figure 1The IAB node 130 in the embodiment can also be connected to the IAB node 120 via the backhaul link 134, that is, the IAB node 110 and the IAB node 120 are both regarded as the superior node of the IAB node 130. The names of the IAB nodes 110, 120, 130 do not limit the scenarios or networks in which they are deployed, and can be any other names such as relay, RN, etc. The IAB node is used in this application only for the convenience of description.

[0063] exist Figure 1 In the embodiment, the wireless links 102, 112, 122, 132, 113, 123, 133, 134 can be bidirectional links, including uplink and downlink transmission links. In particular, the wireless backhaul links 113, 123, 133, 134 can be used for the upper node to provide services to the lower node, such as the upper node 100 provides wireless backhaul services to the lower node 110. It should be understood that the uplink and downlink of the backhaul link can be separated, that is, the uplink and downlink are not transmitted through the same node. The downlink transmission refers to the upper node, such as node 100, transmitting information or data to the lower node, such as node 110, and the uplink transmission refers to the lower node, such as node 110, transmitting information or data to the upper node, such as node 100. The node is not limited to being a network node or a terminal device. For example, in a D2D scenario, a terminal device can act as a relay node to serve other terminal devices. The wireless backhaul link can also be an access link in some scenarios. For example, the backhaul link 123 can also be regarded as an access link for the node 110, and the backhaul link 113 is also an access link for the node 100. It should be understood that the above-mentioned upper node can be a base station or a relay node, and the lower node can be a relay node or a terminal device with a relay function. For example, in a D2D scenario, the lower node can also be a terminal device.

[0064] See also Figure 2 , Figure 2 is a specific example of an IAB system. Figure 2 The IAB system shown includes a host base station, an IAB node 1, an IAB node 2, UE1 and UE2. The link between the host base station and the IAB node 1, and the link between the IAB node 1 and the IAB node 2 are backhaul links. The link between UE1 and the host base station, and the link between UE2 and the IAB node 1 are access links.

[0065] See also Figure 3 , Figure 3 This is a schematic diagram of the structure of the IAB node. Figure 3As shown, the mobile-termination (MT) function is defined as a component similar to the UE. In IAB, MT is referred to as a function (or module) residing on the IAB node. Since MT is similar to the function of an ordinary UE, it can be considered that the IAB node accesses the upper node or network through MT. The distributed unit (DU) function is defined as a component similar to the base station. In IAB, DU is referred to as a function (or module) residing on the IAB node. Since DU is similar to the function or part of the function of an ordinary base station, it can be considered that the IAB node can allow the access of lower-level nodes and terminal devices through DU.

[0066] The MT and DU of the IAB node both have complete transceiver units, and there is an interface between the two. However, it should be noted that the MT and DU are logical modules. In practice, the two can share some submodules, such as the transceiver antenna, baseband processing unit, etc. Figure 4 shown.

[0067] Furthermore, the DU may have multiple submodules. For example, the DU may have multiple cells, such as Figure 5 shown.

[0068] The link for MT to communicate with the upper node is called the parent BH link, the link for DU to communicate with the lower IAB node is called the child BH link, and the link for DU to communicate with the subordinate UE is called the access link. The upper BH link includes the upper BH uplink (UL) and the upper BH downlink (DL), the lower BH link includes the lower BH UL and the lower BH DL, and the access link includes the access UL and the access DL. Figure 6 In some cases, the lower-level backhaul link is also called an access link.

[0069] Combine the following Figure 7 This article describes how to configure backhaul resources in an LTE relay system.

[0070] In the LTE relay system, the donor node semi-statically configures backhaul resources for the relay node. Figure 7A specific example of allocation of downlink backhaul resources in a relay system of LTE is shown. In LTE, the donor node allocates backhaul link resources to the relay node in units of subframes (1ms), and the allocation period is one radio frame (10ms). Specifically, the donor node designates some subframes as backhaul link subframes through radio resource control (RRC) signaling. The number and position of the backhaul link subframes can be reconfigured.

[0071] For a relay node in LTE, when a subframe is configured as a backhaul subframe, the relay node needs to monitor the relay physical downlink control channel (R-PDCCH) and / or receive the physical downlink share channel (PDSCH) in this subframe, so it cannot send on the access link. Figure 7 As shown, subframes 2, 4, and 6 are configured as backhaul links, and subframes 2, 4, and 6 are unavailable on the access links at the corresponding locations. Therefore, the LTE relay is a semi-static time division multiplexing (TDM) resource allocation.

[0072] The resource allocation method of the IAB system in NR is introduced below.

[0073] See also Figure 8 , Figure 8 This is a schematic diagram of an example of resource configuration of an IAB node in NR. Among them, the MT resources of the IAB node can be configured as downlink (D), uplink (U), and flexible (F). These three types are also supported by existing terminal devices, so they can be indicated by existing signaling.

[0074] The DU resources of the IAB node can be configured into four types: downlink, uplink, flexible and unavailable (Null, N). Furthermore, the downlink, uplink and flexible resources of the DU can be divided into hard (H) resources and soft (S) resources. Among them, the hard resources of the DU refer to the resources that are always available to the DU.

[0075] The soft resource of DU indicates that whether the DU is available depends on the instruction of the upper node (such as the donor node).

[0076] As can be seen from the above, the resource allocation on the IAB node DU in NR depends on the instruction of the upper node, and the DU resource is indicated by semi-static allocation plus dynamic indication. This resource allocation method is very different from the resource allocation method in the LTE system.

[0077] Combination Figure 3 and Figure 8 , the MT of the IAB node is connected to the DU of the upper node, and the DU of the IAB node is connected to the MT of the lower node. After semi-static resource configuration (for example, through RRC signaling and / or F1-AP interface signaling), the IAB node can obtain the resource configuration of its MT resources and DU resources respectively. For example, it can include the transmission direction (D / U / F) of MT resources and DU resources, the type of DU resources (soft / hard), the location of DU's NULL resources, etc. It should be understood that the above-mentioned related configurations can be obtained through explicit signaling or implicitly. Specifically, Figure 7 A schematic diagram of resource configuration of MT and DU in the case of time division multiplexing is shown in FIG.

[0078] Combination Figure 8 As can be seen from Table 1 below, for an IAB node, the MT resources (eg, MT resources corresponding to the 1st, 6th, 7th, and 8th time slots) corresponding to the hard resources of its DU (eg, DU resources corresponding to the 1st, 6th, 7th, and 8th time slots) are unavailable.

[0079] Specifically, the MT of the IAB node has three types of resources, and the DU of the IAB node has seven types of resources. After being combined in pairs, the possible behaviors of the MT of the IAB node and its corresponding DU are shown in the following two tables, where Table 1 shows the resource configuration of the MT and DU under various possible resource type combinations in the time division multiplexing scenario. Table 2 shows the resource configuration of the MT and DU under various possible resource type combinations in the spatial division multiplexing (SDM) scenario.

[0080] Table 1

[0081]

[0082] Table 2

[0083]

[0084]

[0085] In Tables 1 and 2 above, the meanings of the symbols are as follows:

[0086] "MT:Tx" means that the MT should transmit after being scheduled;

[0087] "DU:Tx" means that the DU can transmit;

[0088] "MT:Rx" means that the MT is capable of receiving (if there is a signal to be received);

[0089] "DU:Rx" means that DU can schedule uplink transmission of lower-level nodes;

[0090] "MT:Tx / Rx" means that the MT should transmit or receive after being scheduled, but transmission and reception do not occur at the same time;

[0091] "DU:Tx / Rx" means that the DU can transmit or receive transmissions from subordinate nodes, but transmission and reception do not occur at the same time;

[0092] "IA" means that the DU resources are explicitly or implicitly indicated as available;

[0093] "INA" means that the DU resources are explicitly or implicitly indicated as unavailable;

[0094] "MT:NULL" means that the MT does not send and does not have to have the receiving capability;

[0095] "DU:NULL" means that the DU does not send and does not receive transmissions from lower-level nodes.

[0096] In order to dynamically coordinate resources between the access link and the backhaul link, NR IAB will use two-level resource indication. Specifically, two-level resource indication means that the upper node configures soft resources and hard resources for the DU of the IAB node in an explicit or implicit manner. The available status of soft resources depends on the dynamic signaling indication of the upper node.

[0097] In the case where a DU has multiple cells, different cells of the DU may have different H / S types. For example, assume that a DU has two cells, cell#0 and cell#1, where cell#0 shares an antenna panel with the MT or faces the same direction as the antenna panel of the MT. Consider five time domain resources (time slots), where time slot 0 is the downlink resource of the MT and the downlink soft resource of the two cells, time slots 1 to 3 are unavailable to the MT, time slots 1 and 2 are the downlink hard resources of the two cells, time slot 3 is the uplink and downlink flexible hard resource of the two cells, time slot 4 is the uplink resource of the MT, the soft resource of cell#0, and the hard resource of cell#1, as shown in Figure 1. Fig. 9The reason why the two DU cells can have different H / S types in time slot 4 is that the transmission direction of cell#1 in this time slot is opposite to that of MT, and the transmission (sending) does not violate the half-duplex constraint (that is, MT and DU cannot receive and send at the same time), and the MT and cell#1 panels are in opposite directions, so the mutual influence between the two is small.

[0098] In view of the situation where DU has multiple modules, the embodiment of the present application provides a resource indication method and device. The method and device are based on the same technical concept. Since the method and device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0099] The resource indication method provided in the embodiment of the present application can be applied to Figure 1 In the communication system shown, it should be understood that Figure 1 This is only an exemplary description and does not specifically limit the number of terminal devices and network devices included in the communication system.

[0100] It should be understood that in the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can represent: a, b, c, a and b, a and c, b and c, or a, b and c, where a, b, c can be single or multiple.

[0101] In addition, it should be understood that, in the description of this application, words such as "first" and "second" are only used for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0102] The resource indication method provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0103] See also Fig.10 , is a flow chart of a resource indication method provided by the present application, the method comprising:

[0104] S1001, the second node sends indication information to the first node. Correspondingly, the first node receives the indication information sent by the second node, the indication information is used to indicate the available status of dynamic resources in the first resources corresponding to P cells, the first resources are transmission resources for the first node to communicate with the third node, the second node is the upper node (or host node or parent node) of the first node, and the third node is the lower node (or child node) of the first node.

[0105] Specifically, the above indication information may be received by the MT of the first node.

[0106] In the embodiment of the present application, the DU of the first node may have (or include or exist or correspond to or cover) multiple cells. For example, the DU of the first node has multiple panels or sectors facing in different directions, and different panels are different cells. For example, Fig.11 As shown; or, the DU of the first node adopts carrier aggregation, different carriers are different cells, etc. It should be understood that the present application does not exclude other multi-cell DU scenarios. Exemplarily, the logical structure of DU multi-cell and MT can be as follows Fig.12 Different cells of a DU may have different physical-layer cell identities (PCIs) or may share the same PCI.

[0107] It should be noted that, in the embodiments of the present application, only a cell is used as an example for explanation, but it is not limited to the cell as a unit. In a specific implementation, other submodules or subunits may also be used as units, such as sectors, antenna panels, etc. Exemplarily, when the sector is used as a unit, the indication information may indicate the available status of the dynamic resources in the first resources corresponding to P sectors.

[0108] The second node may be a common network device, such as a base station, etc., or a relay device, or an IAB node. The third node may be a common network device, such as a base station, etc., or a relay device, or an IAB node, or a terminal device.

[0109] The indication information may be carried by layer 1 dynamic signaling or layer 2 signaling, for example, downlink control information (DCI), MAC CE, and the like.

[0110] The indication information may also be called dynamic signaling, dynamic indication signaling, dynamic DCI or indication DCI, etc.

[0111] S1002: The first node determines P cells indicated by the indication information among N cells included (or existing or corresponding or covered), where 1≤P≤N.

[0112] When the DU of the first node exists (or includes or covers or corresponds to) multiple cells, the first node needs to determine the cell to which the indication DCI applies. Exemplarily, the indication information may indicate the first resources of all cells (i.e., P is equal to N, and the P cells are all cells in the N cells), or may only indicate the first resources of some cells (i.e., P is less than N, and the P cells are some cells in the N cells).

[0113] S1003: The first node determines the availability status of dynamic resources in the first resources of P cells according to the indication information.

[0114] like Fig.13 As shown in the figure, if the indication information indicates that the dynamic resource in the first resource of the cell is available (solid line in the figure), the first node can use the corresponding resource to communicate with the third node. If the indication information indicates that the dynamic resource in the first resource of a cell is unavailable (dashed line in the figure), the first node cannot use the corresponding resource to communicate with the third node.

[0115] In a specific implementation, the first node can infer the availability status of its second resource through the indication of the dynamic resource in the first resource by the indication information, wherein the second resource is a transmission resource for the first node to communicate with the second node.

[0116] In an embodiment of the present application, the indication DCI sent by the superior node of the IAB node can indicate the DU resources of multiple cells, and the IAB node can determine the cell to which the indication DCI applies, thereby realizing the dynamic resource delivery method when the DU has multiple cells, and can ensure that in the case of multiple cells, the soft resource availability status of the DU can be accurately indicated.

[0117] For the convenience of description, the first node is referred to as an IAB node, the second node is referred to as an upper node of the IAB, the third node is a lower node of the IAB node, and the indication information sent by the second node is referred to as an indication DCI.

[0118] The transmission resource (i.e., the first resource) for the IAB node to communicate with the subordinate node of the IAB node can be a DU resource, the dynamic resource of the first resource can refer to the soft resource in the DU resource, and the transmission resource (i.e., the second resource) for the IAB node to communicate with the superior node of the IAB node can be an MT resource. For the convenience of description, the first resource is referred to as a DU resource, the dynamic resource of the first resource is referred to as a DU soft resource, and the second resource is referred to as an MT resource. It should be noted that the DU resource, DU soft resource, and MT resource here are only exemplary names, and they can be named as others in the future development of communication. For example, the transmission resource for the IAB node to communicate with the subordinate node of the IAB node is named A, the dynamic resource of the first resource is named B, and the transmission resource for the IAB node to communicate with the superior node of the IAB node is named C. It should be understood that if A can be used for the IAB node to communicate with the subordinate node of the IAB node, B is a resource in A that depends on the indication of the superior node (e.g., donor node), A can also be understood as the first resource in this application, B can be understood as the dynamic resource of the first resource in this application, and C can be understood as the second resource in this application.

[0119] In one implementation, the IAB node may determine P cells from N cells based on a preset rule.

[0120] In an exemplary description, the preset rule may be: N cells are divided into multiple cell groups, and the P cells are one or more cells in a designated cell group among the multiple cell groups.

[0121] The manner of dividing the N cells into a plurality of cell groups may be: dividing the N cells into a plurality of cell groups according to the resource reuse relationship between the DU and the MT corresponding to each cell.

[0122] For example, N cells of the IAB node DU may be divided into M groups, and the DU resources and MT resources of each group of cells have different resource reuse relationships, where the resource reuse relationship may include but is not limited to time division multiplexing, space division multiplexing, frequency division multiplexing, full duplex, dynamic space division multiplexing, etc. In one implementation, N=M, that is, no grouping is performed, or each group contains only one cell.

[0123] In general, when the MT shares an antenna panel with a cell (or cell group) of the DU (or the antenna panels are in the same direction), the resource multiplexing relationship between the DU resources and the MT resources of the cell (or cell group) can be time division multiplexing or dynamic space division multiplexing. When the MT and a cell (or cell group) of the DU use different antenna panels (or the antenna panels are in different directions), the resource multiplexing relationship between the DU resources and the MT resources of the cell (or cell group) can be space division multiplexing or full duplex.

[0124] Further, the indicated cell group may be a cell group whose corresponding DU resources have a specified resource reuse relationship with the MT resources. Exemplarily, the specified resource reuse relationship may be time division multiplexing. That is, the IAB node divides N cells into M groups according to the resource reuse relationship between their corresponding DU resources and MT resources, and determines that one or more cells in the cell group whose DU resources and MT resources have a time division multiplexing relationship are the cells corresponding to the indicated DCI.

[0125] In another exemplary description, the preset rule may also be: P cells are one or more of the cells whose corresponding DU resources and MT resources have a specified resource reuse relationship. Exemplarily, the specified resource reuse relationship may be time division multiplexing. In this manner, the IAB node may not group the N cells of the IAB node DU, but may determine the cell to which the indication DCI applies based on the resource reuse relationship between the DU resources and the MT resources of each cell.

[0126] In another exemplary description, the preset rule may also be: the P cells are one or more cells that are co-planar / co-directional / co-located / quasi-co-located with the IAB node.

[0127] In another exemplary description, the preset rule may also be: N cells are divided into multiple cell groups, P cells are cells included in the cell set, and the cell set includes one cell in each cell group. The manner of dividing the N cells into multiple cell groups may be: dividing the N cells into multiple cell groups according to the resource reuse relationship between the DU and the MT corresponding to each cell. In this case, the indication DCI may indicate one cell in each cell group.

[0128] In other exemplary descriptions, the preset rule may be: P cells are N cells. In this case, the cells corresponding to the indicated DCI are all cells in the N cells. In one implementation, the indicated DCI may indicate each cell separately, or may group the P cells and indicate the cell groups separately, wherein the grouping method may be grouping according to the resource reuse relationship between the DU and the MT corresponding to each cell, or may be grouping according to other methods, which are not specifically limited here.

[0129] The preset rule may also be: the P cells are one or more of the cells configured by the second configuration information acquired by the IAB node, and the second configuration information is used to configure resources for the cells. Here, the resources configured by the second configuration information include the hard / soft type of DU resources.

[0130] In a specific implementation, when the donor node or the upper node of the IAB node configures the soft / hard resource location for the IAB node, the resource information can be configured to some cells, or only configured for each cell group. The resource type of the remaining cells can be the same as the resource type of the configured cell, or the IAB node can derive the resource type of the remaining cells based on the resource type of the configured cell. When the resource configuration is performed for each DU cell group, each cell group can have the same resource configuration.

[0131] When the donor node or the upper node of the IAB node configures the resource types of only some cells, the cells to which the DCI is applied may be all or some of the configured cells.

[0132] For example, there are N cells in the IAB node DU, but the IAB node donor node or the upper node only configures resources for P of the cells, and the cells to which the DCI is applied may be the P cells.

[0133] In another implementation, the superior node of the IAB node may configure the P cells indicated by the DCI for the IAB node through signaling (eg, first configuration information). Correspondingly, the IAB node may receive the first configuration information sent by the superior node of the IAB node, and the first configuration information is used to determine the P cells.

[0134] In some embodiments, the IAB node may first determine the P1 cell to which the indication DCI is applied according to a preset rule, and then the superior node of the IAB node may reconfigure the P2 cell to which the indication DCI is applied for the IAB node through signaling (for example, first configuration information). In this case, when the IAB has not received the first configuration information, it can determine that the cell to which the indication DCI is applied is the P1 cell determined according to the preset rule, and after receiving the first configuration information, it can determine that the cell to which the indication DCI is applied is the P2 cell configured by the first configuration information.

[0135] In a specific implementation, when the DCI indicates a part of N cells (ie, P is less than N), the available status of the dynamic resources in the DU resources of the remaining cells can be obtained by any of the following methods:

[0136] Mode 1: There is an association relationship between the non-indicated cell and the indicated cell, and the DU soft resources of the associated cells have the same available status. The non-indicated cell is a cell not included in the cells to which the indicated DCI is applied, and the indicated cell is a cell included in the cells to which the indicated DCI is applied.

[0137] In the second method, the IAB node can determine the available status of the DU soft resources of the unindicated cell by itself.

[0138] Method three: the IAB node can determine the available status of the DU soft resources of the unindicated cell through scheduling signaling / semi-static configuration signal.

[0139] In a possible implementation, the number of DU cells indicated, that is, the number of cells to which the indicated DCI applies, may be limited. In a specific implementation, the number of cells to which the indicated DCI applies may be limited by the protocol. Exemplarily, the number of DU cells indicated may be limited to 1, that is, the indicated DCI is limited to apply to only 1 cell, P=1, so that the IAB node can determine 1 cell corresponding to the indication information among N cells.

[0140] In the embodiment of the present application, only the H / S configuration of DU resources is considered. The H / S resources of two cells may not completely overlap in the time domain, such as Fig.14 As shown, in time slot 2, cell 1 is a hard resource and cell 2 is a soft resource; in time slot 4, cell 1 is a soft resource and cell 2 is a hard resource.

[0141] In some embodiments, the indication DCI can be divided into two modes: explicit indication and implicit indication. Among them, in the implicit indication mode, the indication information can be used to indicate whether the MT resources of the first node are released. In this mode, the second node can indicate whether the MT resources of the first node are released, so that the first node can deduce the available status of its own DU soft resources based on the indication of the MT resources by the second node. In the explicit indication mode, the indication information can directly indicate whether the DUsoft resources of the first node are available. In this mode, the second node can directly indicate the available status of the DU soft resources of the first node. In addition, the indication information can also indicate the transmission direction of the DU soft resources, etc.

[0142] In the display indication mode, indicating that the DCI indicates the available status of the DU soft resources of P cells can be implemented in any of the following three ways:

[0143] Mode 1, joint indication, that is, indicating that a first sub-information in the DCI can simultaneously indicate the available status of DU soft resources of multiple cells, and the soft resources of multiple DU cells indicated by the same first sub-information have the same available status.

[0144] In the joint indication mode, the indication DCI may include M first sub-information, where M is an integer greater than 0, and one first sub-information is used to indicate the available status of DU soft resources of P cells in one or more time units.

[0145] Exemplarily, the time unit may be a time slot or a symbol.

[0146] In one possible implementation, the time unit may also be a symbol set, for example, a downlink symbol set within a time slot, an uplink symbol set within a time slot, or a flexible symbol set within a time slot, etc. The flexible symbol set is determined according to actual needs and this application does not limit this.

[0147] The first sub-information can be regarded as a bit string or a field. For the convenience of description, the first sub-information indicating a DCI is referred to as a field indicating a DCI.

[0148] In one implementation, one field may correspond to one time unit, and the size of one field may be 1 bit, which is used to indicate the available status of DU soft resources of each cell in the corresponding time unit.

[0149] In another implementation, one field may correspond to n time units, where n is an integer greater than 1. One field is used to indicate the available status of DU soft resources of P cells corresponding to n time units, and the available status of DU soft resources of P cells in different time units may be the same or different. For example, the time unit may be a symbol, and one field is used to indicate the available status of DU soft resources of P cells within n symbols of a time slot.

[0150] In a possible implementation, a time unit may include multiple sub-time units, in which the resources corresponding to at least one of the P cells in only some of the sub-time units may be soft resources, while the resources corresponding to the P cells in other time sub-units may be hard or Null. In this case, the indication DCI is only effective for the sub-time units where the resources corresponding to the cells are soft resources. For example, a time slot contains 14 symbols, in which the DU resources of one or more of the P cells in symbols 0 and symbols 5 to 9 are soft resources, while the DU resources of the P cells in symbols 1 to 4 and symbols 10 to 13 are not soft resources. In this case, the indication DCI is only used to indicate the available status of the DU soft resources of the P cells in symbols 0 and symbols 5 to 9.

[0151] In an implementation method in which a field is used to indicate the DU soft resources of P cells in a time unit, for a time unit, as long as there is at least one cell whose DU resources are soft resources in the time unit, the time unit needs to be indicated, that is, the DCI includes the field corresponding to the time unit. Moreover, no matter how many cells have DU resources as soft resources in the time unit, they are indicated with one field, that is, the field corresponding to the time unit can simultaneously indicate the available status of DU soft resources of multiple cells. Assuming that the time unit is a time slot, such as Fig.14As shown in Figure 1, in time slot 0, both cell 1 and cell 2 are soft resources, indicating that DCI uses one field to simultaneously indicate the availability of DU soft resources of both cells within one time unit. In time slot 2 and time slot 4, only one cell's resources are soft, indicating that DCI still uses one field to indicate the availability of DU soft resources in the corresponding cell within one time unit. For time slot 2 and time slot 4, one field is used to indicate the availability of DU soft resources in one cell within one time unit, such as Fig.15 shown.

[0152] The joint indication method may be applicable to, but is not limited to, the case where the multiplexing types of DU resources and MT resources of the indicated multiple cells are consistent, and has the advantage of low overhead.

[0153] In some embodiments, the indication DCI may include only the field corresponding to the time unit that needs to be indicated, but does not include the field corresponding to the time unit that does not need to be indicated, so as to Fig.15 For example, time units 0, 2, and 4 need to be indicated (time units marked with "O" in the figure), and time units 1 and 3 do not need to be indicated (time units marked with "X" in the figure). The field corresponding to time unit k is denoted as A(k), and the field corresponding to the time unit that needs to be indicated is [A(0)A(2)A(4)], indicating that the DCI only includes [A(0)A(2)A(4)], as shown in Table 1.

[0154] Table 1

[0155] Resource Number 0 1 2 3 4 DU resources of cell 1 S H H H S DU resources of cell 2 S H S H H Fields √ × √ × √

[0156] In some other embodiments, the indication DCI may include fields corresponding to time units that need to be indicated and fields corresponding to time units that do not need to be indicated. Further, in this manner, the time units that do not need to be indicated may be set to fixed values, or the IAB node may ignore fields corresponding to resources that do not need to be indicated. Fig.15 For example, time units 0, 2, and 4 need to be indicated, and the field corresponding to the time unit k is denoted as A(k). The field corresponding to the time unit that needs to be indicated is [A(0)A(2)A(4)], and the field corresponding to the time unit that does not need to be indicated is [A(1)A(3)]. Therefore, the indication DCI may include [A(0)A(1)A(2)A(3)A(4)], but [A(1)A(3)] takes a fixed value or is ignored by the IAB node.

[0157] Mode 2, cell-by-cell indication, that is, indicating that a second sub-information in the DCI can indicate the available status of the DU soft resources of a cell. In this mode, the DCI can indicate the available status of the DU soft resources of multiple cells one by one.

[0158] In the cell-by-cell indication mode, the indication DCI includes H second sub-information, where H is an integer greater than 0, and the second sub-information is used to indicate the availability status of DU resources of one cell among P cells in one or more time units.

[0159] Exemplarily, the time unit may be a time slot or a symbol.

[0160] The second sub-information can be regarded as a bit string or a field. For the convenience of description, the second sub-information indicating a DCI is referred to as a field indicating a DCI.

[0161] In one implementation, one field may correspond to one time unit, and the size of one field may be 1 bit, which is used to indicate the availability status of the DU soft resources of the cell corresponding to the field in the corresponding time unit.

[0162] In another implementation, one field may correspond to n time units, where n is an integer greater than 1. One field is used to indicate the available status of the DU soft resources of the cell corresponding to the field within n time units, and the available status of the DU soft resources of the cell corresponding to the field in different time units may be the same or different. For example, the time unit may be a symbol, and one field is used to indicate the available status of the DU soft resources of the cell corresponding to the field within n symbols of a time slot.

[0163] In a possible implementation, a time unit may include multiple sub-time units, where the resources corresponding to at least one of the P cells may be soft resources only in some sub-time units, while the resources corresponding to the P cells in some other time sub-units are hard or null. In this case, the DCI field indicates that the DCI for this time unit is only valid for some sub-time units where the resources corresponding to the cells are soft resources. For example, a time slot contains more than 14 symbols, where the DU resources of one or more of the P cells in symbols 0 and symbols 5 to 9 are soft resources, and the DU resources of the P cells in symbols 1 to 4 and symbols 10 to 13 are not soft resources. In this case, the indication DCI is only used to indicate the availability of the DU soft resources of the P cells in symbols 0 and symbols 5 to 9. If some symbols in a time unit (such as a time slot) are soft resources, and the remaining symbols are hard or null, the indication DCI for this time unit is only applicable to soft symbols.

[0164] In an implementation method where a field is used to indicate the DU soft resources of a cell corresponding to the field in a time unit, for a time unit, if the DU resources of a cell are soft resources in the time unit, the availability status of the DU soft resources of the cell in the time unit needs to be indicated, that is, the DCI includes a field corresponding to the combination of the time unit and the cell. Assuming that the time unit is a time slot, such as Fig.14 As shown, in time slot 0, the resources of cell 1 and cell 2 are both soft, while in time slot 2, only the resources of cell 2 are soft, and in time slot 4, only the resources of cell 1 are soft, indicating that DCI can indicate the available status of DU soft resources of a cell within a time unit through a field, such as Fig.16 shown.

[0165] In some embodiments, the indication DCI may include only the fields corresponding to the DU soft resources that need to be indicated, but not the fields corresponding to the DU soft resources that do not need to be indicated. Fig.16 For example, time slot 0 and time slot 4 of cell 1 need to be indicated, and time slot 0 and time slot 2 of cell 2 need to be indicated, which are the time units marked by "O" in the figure. Time slots 1 to 3 of cell 1 need to be indicated, and time slots 1 / 3 and time slot 4 of cell 2 need to be indicated, which are the time units marked by "X" in the figure. The field corresponding to time unit k of cell c is recorded as A(c,k), and the field corresponding to the time unit that needs to be indicated is [A(1,0)A(1,4)A(2,0)A(2,2)], as shown in Table 2.

[0166] Table 2

[0167] Resource Number 0 1 2 3 4 Community 1 Resources S H H H S Community 2 Resources S H S H H Fields corresponding to cell 1 √ × × × √ Fields corresponding to cell 1 √ × √ × ×

[0168] For the fields corresponding to the cell resources that do not need to be indicated, the processing method is the same as the processing method for the fields corresponding to the time units that do not need to be indicated in method 1, and will not be repeated here.

[0169] It should be noted that, in the indication DCI, the order of the fields can be in the order of time unit-cell number, or in the order of cell number-time unit.

[0170] The cell-by-cell indication method can be applied to scenarios such as multiple TRP transmissions but is not limited to this.

[0171] In a specific implementation, the first method and the second method may be indicated separately or in combination. For example, through configuration, some resources may be indicated jointly, and some resources may be indicated cell by cell.

[0172] Mode 3, indicating by cell group, that is, indicating that a third sub-information in the DCI can indicate the available status of the DU soft resources of a cell group. In this mode, the indicating DCI can indicate the available status of the DU soft resources of multiple cell groups one by one.

[0173] In the cell group indication method, the indication DCI includes K cell group indication DCIs, wherein one cell group indication DCI corresponds to one cell group, each cell group includes at least one cell among P cells, and the cell group indication DCI is used to indicate the available status of DU resources of the corresponding cell group.

[0174] In a specific implementation, the IAB node may divide the P cells into K cell groups according to the resource reuse relationship between the corresponding DU resources and MT resources. Alternatively, the IAB node may also use other methods to divide the P cells into K cell groups.

[0175] Among them, the specific way in which the cell group indication DCI indicates the available status of the DU resources of the corresponding cell group can be referred to method 1 and method 2, which will not be repeated here.

[0176] Based on the same inventive concept as the method embodiment, the embodiment of the present application provides a resource indication device. The resource indication device can be specifically used to implement Figures 10 to 16 In the embodiment of the method executed by the first node, the device may be the first node itself, or a chip or a chipset in the first node or a part of the chip used to execute the function of the related method. The structure of the resource indication device may be as follows Fig.17As shown, it includes a processing unit 1701 and a transceiver unit 1702. The transceiver unit 1702 is used to receive indication information sent by the second node, and the indication information is used to indicate the available status of dynamic resources in the first resources corresponding to P cells, the first resource is a transmission resource for the first node to communicate with the third node, the second node is the upper node of the first node, and the third node is the lower node of the first node. The processing unit 1701 is used to determine the P cells indicated by the indication information among the N cells included, wherein 1≤P≤N; and determine the available status of dynamic resources in the first resources of the P cells according to the indication information.

[0177] The processing unit 1701, when determining the P cells indicated by the indication information among the N cells included, can be specifically used to: determine the P cells among the N cells based on a preset rule; or receive first configuration information sent by the second node, the first configuration information being used to determine the P cells.

[0178] Exemplarily, the preset rule may be: N cells are divided into multiple cell groups, and the P cells are one or more cells in a designated cell group among the multiple cell groups.

[0179] Alternatively, the preset rule may also be: the P cells are one or more cells whose corresponding first resources and second resources have a specified resource reuse relationship, wherein the second resource is a transmission resource for communication between the first node and the second node.

[0180] Alternatively, the preset rule may also be: the P cells are one or more cells that are co-planar / co-directional / co-located / quasi-co-located with the mobile terminal MT of the first node.

[0181] Alternatively, the preset rule may be: N cells are divided into a plurality of cell groups, P cells are cells included in the cell set, and the cell set includes one cell in each cell group.

[0182] Alternatively, the preset rule may be: P cells equal to N cells.

[0183] Alternatively, the preset rule may also be: the P cells are one or more of the cells configured by the second configuration information obtained by the first node, and the second configuration information is used to perform resource configuration for the cell.

[0184] The manner of dividing the N cells into a plurality of cell groups may be: dividing the N cells into a plurality of cell groups according to a resource reuse relationship between the corresponding first resources and the second resources.

[0185] Exemplarily, the specified resource reuse relationship may be time division multiplexing.

[0186] In one implementation, the indication information may include M first sub-information, where M is an integer greater than 0, and one first sub-information is used to indicate the availability status of dynamic resources in the first resources of P cells within one or more time units.

[0187] In another implementation, the indication information may also include H second sub-information, where H is an integer greater than 0, and the second sub-information is used to indicate the availability status of the dynamic resources in the first resources of a cell within P cells within one or more time units.

[0188] In another implementation, the indication information may also include K cell group indication information, wherein one cell group indication information corresponds to one cell group, each cell group includes at least one cell among P cells, and the cell group indication information is used to indicate the available status of dynamic resources in the first resource of the corresponding cell group.

[0189] Furthermore, each cell group indication information may include L third sub-information, where L is an integer greater than 0, and the third sub-information is used to indicate the available status of dynamic resources in the first resource of the cell group corresponding to the cell group indication information within one or more time units.

[0190] Alternatively, each cell group indication information may also include J fourth sub-information, where the fourth sub-information is used to indicate the available status of the dynamic resources in the first resources of a cell in the cell group corresponding to the cell group indication information within one or more time units.

[0191] The processing unit, after determining the available status of dynamic resources in the first resources of P cells based on the indication information, can also be used to: determine the available status of dynamic resources in the first resources of other cells based on the available status of the first resources of the P cells, and the other cells include one or more of the N cells other than the P cells.

[0192] The division of modules in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. It is understood that the functions or implementations of each module in the embodiments of the present application may further refer to the relevant description of the method embodiment.

[0193] In one possible manner, the resource indicating device may be as follows: Fig.18As shown, the device may be a network device or a chip in the network device. The device may include a processor 1801, a communication interface 1802, and a memory 1803. Among them, the processing unit 1701 may be the processor 1801. The transceiver unit 1702 may be the communication interface 1802.

[0194] The processor 1801 may be a central processing unit (CPU), or a digital processing unit, etc. The communication interface 1802 may be a transceiver, or an interface circuit such as a transceiver circuit, or a transceiver chip, etc. The device further includes: a memory 1803 for storing programs executed by the processor 1801. The memory 1803 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM). The memory 1803 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0195] The processor 1801 is used to execute the program code stored in the memory 1803, specifically to execute the actions of the processing unit 1701, which will not be described in detail in this application. The communication interface 1802 is specifically used to execute the actions of the transceiver unit 1702, which will not be described in detail in this application.

[0196] The specific connection medium between the communication interface 1802, the processor 1801 and the memory 1803 is not limited in the embodiment of the present application. Fig.18 In the embodiment, the memory 1803, the processor 1801 and the communication interface 1802 are connected via a bus 1804. Fig.18 The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.18 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0197] An embodiment of the present invention further provides a computer-readable storage medium for storing computer software instructions required to be executed by the above-mentioned processor, which includes a program required to be executed by the above-mentioned processor.

[0198] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server, data center, etc. that includes one or more available media integrated. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., an SSD), etc.

[0199] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0200] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0201] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0202] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A resource indication method, characterized in that: The method comprises: The second node generates indication information, where the indication information includes H sub-information, where the sub-information is used to indicate an available state of a dynamic resource in a first resource of a cell within one or more time units, where H is an integer greater than 0, and the first resource is a transmission resource for the first node to communicate with the third node; The second node sends the indication information to the first node, the second node is an upper-level node of the first node, and the third node is a lower-level node of the first node.

2. The method according to claim 1, characterized in that The second sub-information is further used to indicate the availability status of dynamic resources in the first resources of multiple symbols in the one or more time slots.

3. The method according to claim 2, characterized in that The multiple symbols are all symbols corresponding to the dynamic resources.

4. The method according to claim 2, characterized in that The multiple symbols are partial symbols corresponding to the dynamic resources.

5. The method according to claim 1, characterized in that The indication information is used to indicate the available status of the dynamic resources in the first resources corresponding to the P cells on a cell-by-cell basis.

6. A resource indication device, characterized in that: The device comprises: a processing unit, configured to generate indication information, the indication information comprising H sub-information, the sub-information being used to indicate an available state of a dynamic resource in a first resource of a cell within one or more time units, wherein H is an integer greater than 0, and the first resource is a transmission resource for the first node to communicate with the third node; The transceiver unit is used to send the indication information to the first node, the device is an upper-level node of the first node, and the third node is a lower-level node of the first node.

7. The device according to claim 6, characterized in that The second sub-information is further used to indicate the availability status of dynamic resources in the first resources of multiple symbols in the one or more time slots.

8. The device according to claim 7, characterized in that The multiple symbols are all symbols corresponding to the dynamic resources.

9. The device according to claim 7, characterized in that The multiple symbols are partial symbols corresponding to the dynamic resources.

10. The device according to claim 6, characterized in that The indication information is used to indicate the available status of the dynamic resources in the first resources corresponding to the P cells on a cell-by-cell basis.

11. A resource indication device, characterized in that: The device comprises: a processor, configured to generate indication information, the indication information comprising H sub-information, the sub-information being used to indicate an available state of a dynamic resource in a first resource of a cell within one or more time units, wherein H is an integer greater than 0, and the first resource is a transmission resource for the first node to communicate with the third node; A communication interface is used to send the indication information to the first node, the device is an upper-level node of the first node, and the third node is a lower-level node of the first node.

12. The device according to claim 11, characterized in that The second sub-information is further used to indicate the availability status of dynamic resources in the first resources of multiple symbols in the one or more time slots.

13. The device according to claim 12, characterized in that The multiple symbols are all symbols corresponding to the dynamic resources.

14. The device according to claim 12, characterized in that The multiple symbols are partial symbols corresponding to the dynamic resources.

15. The device according to claim 11, characterized in that The indication information is used to indicate the available status of the dynamic resources in the first resources corresponding to the P cells on a cell-by-cell basis.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program or an instruction, and when the program or the instruction is read and executed by one or more processors, the method according to any one of claims 1 to 5 can be implemented.

17. A computer program product, characterized in that When the computer program product runs on a network device, the network device is enabled to execute the method according to any one of claims 1 to 5.

18. A network system, characterized in that: The method comprises a first node and a second node, wherein the second node is a device according to any one of claims 6-10 or claims 11-15.

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