WO2022206940A1

WO2022206940A1 - Indication method and apparatus, first node, second node, and storage medium

Info

Publication number: WO2022206940A1
Application number: PCT/CN2022/084731
Authority: WO
Inventors: 苗婷; 邢卫民; 毕峰; 卢有雄
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-04-01
Filing date: 2022-04-01
Publication date: 2022-10-06
Also published as: CN115175318A

Abstract

Disclosed in the present application are an indication method and apparatus, a first node, a second node, and a storage medium, wherein the method is applied to the first node. The method comprises: determining at least one frequency-domain resource set of a cell of a distributed unit (DU) of the first node; acquiring availability indication information of a corresponding soft symbol on the at least one frequency-domain resource set; and according to the availability indication information, determining the availability, on the at least one frequency domain resource set, of the corresponding soft symbol of the cell of the DU of the first node.

Description

Indication method, device, first node, second node and storage medium

technical field

The present application relates to the field of communication technologies, for example, to an indication method, an apparatus, a first node, a second node, and a storage medium.

Background technique

The new generation mobile communication system (new radio, NR) allows more than the second generation mobile communication technical specifications (2-Generation wireless telephone technology, 2G), the third generation mobile communication technology (3rd-Generation, 3G), the fourth generation mobile communication The 4th generation mobile communication technology (4G) system has more flexible network networking methods and the existence of new types of network nodes. At present, a new type of node that integrates the backhaul link and the normal NR access link, namely the Integrated Access and Backhaul (IAB) node, can provide more flexible coverage and networking methods than single cellular coverage. , will be an important part of the future mobile communication network.

The IAB node can use frequency division multiplexing or space division multiplexing (or called non-time division multiplexing) to receive data at the same time, send data at the same time, or one receives data and the other sends data at the same time. For non-time-division multiplexing scenarios, the frequency domain resources corresponding to an IAB node are usually divided into multiple parts, and the time-frequency resources corresponding to each part are configured as hard, soft or unavailable. Availability requires further indication.

Therefore, how to indicate the availability of soft symbols is an urgent technical problem to be solved.

SUMMARY OF THE INVENTION

The present application provides an indication method, apparatus, first node, second node and storage medium, which effectively indicate the availability of soft symbols.

In a first aspect, an embodiment of the present application provides an indication method, which is applied to a first node, and the method includes:

determining at least one frequency domain resource set of the cell of the distributed unit DU of the first node;

acquiring the availability indication information of the corresponding soft symbols on the at least one frequency domain resource set;

The availability of the soft symbol corresponding to the cell of the DU of the first node on the at least one frequency domain resource set is determined according to the availability indication information.

In a second aspect, an embodiment of the present application provides an indication method, which is applied to a second node, and the method includes:

determining availability indication information of soft symbols corresponding to at least one frequency domain resource set of the cell of the DU of the first node;

The availability indication information is sent.

In a third aspect, an embodiment of the present application provides an indication device, which is configured on a first node, and the device includes:

a first determining module, configured to determine at least one frequency domain resource set of a cell of the distributed unit DU of the first node;

an obtaining module, configured to obtain availability indication information of the corresponding soft symbols on the at least one frequency domain resource set;

The second determining module is configured to determine, according to the availability indication information, the availability of the soft symbols corresponding to the cell of the DU of the first node on the at least one frequency domain resource set.

In a fourth aspect, an embodiment of the present application provides an indication device, which is configured on a second node, and the device includes:

A determining module, configured to determine availability indication information of soft symbols corresponding to at least one frequency domain resource set of the cell of the DU of the first node;

A sending module, configured to send the availability indication information.

In a fifth aspect, an embodiment of the present application provides a first node, including:

one or more processors;

storage means arranged to store one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in the first aspect of the present application.

In a sixth aspect, an embodiment of the present application provides a second node, including:

one or more processors;

storage means arranged to store one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to the second aspect of the present application.

In a seventh aspect, an embodiment of the present application provides a storage medium, where the storage medium stores a computer program, and the computer program implements the method described in the embodiment of the present application when the computer program is executed by a processor.

Description of drawings

FIG. 1 is a schematic flowchart of an indication method provided by an embodiment of the present application;

2 is a schematic flowchart of another indication method provided by an embodiment of the present application;

FIG. 2a is a schematic diagram of an availability combination list provided by an embodiment of the present application;

FIG. 2b is a mapping relationship diagram of an availability combination index and a time unit provided by an embodiment of the application;

FIG. 2c is a schematic diagram of an indication manner of an availability combination index field provided by an embodiment of the present application;

FIG. 2d is a schematic diagram of another indication manner of an availability combination index field provided by an embodiment of the present application;

FIG. 2e is a schematic diagram of yet another indication manner of an availability combination index field provided by an embodiment of the present application;

FIG. 2f is a schematic diagram of an indication manner of another availability combination index field provided by an embodiment of the present application;

FIG. 2g is a schematic diagram of an availability indication manner provided by an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a pointing device according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another indicating device provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a first node according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a second node according to an embodiment of the present application.

Detailed ways

Hereinafter, the embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be noted that, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.

The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

In an exemplary implementation, FIG. 1 is a schematic flowchart of an indication method provided by an embodiment of the present application. The method can be applied to the case of performing soft symbol availability indication for each frequency domain resource set, and the method can be used by the present application. The provided availability indication means is executed, the means may be implemented by software and/or hardware and configured on the first node. The first node may be a node for which soft symbol availability is to be determined, and the second node may be: a parent node of the first node, or a serving cell of a mobile terminal (Mobile-Termination, MT) of the first node, or a centralized unit (Central Unit, CU).

The IAB network can support multi-hop, and the IAB node includes two types of logical entities: a mobile terminal MT and a distributed unit (Distributed Unit, DU). The IAB node accesses the parent node (eg, the IAB node or the donor IAB) through the MT (or IAB-MT) to implement wireless backhaul, and provides services for the child node or the UE through the DU (or IAB-DU). Depending on the capabilities of the IAB node, IAB-MT and IAB-DU can transmit data in a time-division multiplexing manner, or receive data simultaneously in a frequency-division multiplexing or space-division multiplexing (or non-time-division multiplexing) manner , send data at the same time, or one receives data while the other sends data.

The donor IAB (ie IAB Donor) is usually connected to the core network (eg wired connection), and the donor IAB usually includes a centralized unit CU and one or more DUs. The CU is logically connected to the DU of each hop IAB node, and coordinates and configures the resources of each hop IAB node.

Generally, for a time division multiplexing scenario, the CU provides the IAB node DU with the configuration of the time domain resource attributes of the cell. For a cell or carrier, a symbol in one direction in a time slot corresponds to one resource attribute, where the direction of the symbol includes downlink ( DownLink, DL), uplink (UpLink, UL) or flexible (Flexible, F) symbols, the attributes of the symbols include hard (Hard), soft (Soft) or not available (Not Available or Unavailable). Therefore, the time domain resource types of the IAB node DU include 7 types: Hard DL, Hard F, Hard UL, Soft DL, Soft F, Soft UL, and unavailable. In the case that the downlink, uplink, or flexible symbol is configured as Hard, correspondingly, the IAB node DU can send data, receive data, or send or receive data on the symbol, respectively. In the case where a downstream, upstream or flexible symbol is configured to be unavailable, the IAB Node DU can neither transmit nor receive data on that symbol. When the downlink, uplink or flexible symbol is configured as Soft, the IAB node DU can send data, receive data, or send or receive data on the symbol in the following situations:

1) IAB node MT does not send data or receive data on this symbol;

2) The IAB node MT transmits data or receives data on this symbol, and its transmission or reception does not change because the IAB node DU uses the symbol;

3) IAB node MT detects downlink control information (Downlink Control Information, DCI) format 2_5 (DCI format2_5), and the availability indication (Availability Indicator, AI) index domain value in DCI format 2_5 indicates that the Soft symbol is available.

In addition, the IAB node DU transmits or receives symbols of a special signal or channel equivalent to being configured as Hard. Sending or receiving special signals or channels includes at least one of the following: sending synchronization signals and broadcast channel blocks (Synchronization Signal and Physical Broadcast Channel Block, SSB), sending type 0 Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) common search space Set (can be carried in pdcchConfigSIB1, searchSpaceSIB1 or searchSpaceZero cell) corresponding PDCCH, receive physical random access channel (Physical Random Access Channel, PRACH), receive scheduling request (Scheduling Request, SR), send periodic channel state information reference Signal (Channel State Information Reference Signal, CSI-RS), send system information (System Information, SI), receive semi-static uplink transmission, send semi-static downlink transmission, etc.

For the cell of the IAB node DU, the serving cell of the IAB node MT (or the network side, or the parent node of the IAB node) may indicate the availability of the Soft time domain symbols of the IAB node DU cell through DCI format 2_5. For the same time domain symbol, its availability is the same for the entire carrier (or component carrier).

"Time-domain resource attribute configuration" is the same resource attribute on the entire carrier for a specific symbol. If the attribute of a specific symbol is hard, the IAB-DU can use the symbol on the entire carrier. If the attribute is unavailable, then the entire carrier The IAB-DU on the carrier cannot use this symbol. This resource configuration is not suitable for the use of frequency division multiplexing resources between the MT and the DU of the IAB node. In order to support the MT and the DU of the IAB node (or the parent link of the IAB node) between sub-links) Frequency Division Multiplexing (FDM) or Space Division Multiplexing (SDM), it is necessary to realize that the same time-domain symbols of the IAB node DU are attributable to different frequency-domain resources or Availability varies. For example, the frequency domain resources of one IAB-DU cell or carrier are divided into at least one resource block (Resource Block, RB) set, wherein each RB set consists of at least one RB. For each RB set, a symbol in one direction in a slot corresponds to a resource attribute. Therefore, it is necessary to solve the problem of how to indicate the availability of the Soft resource corresponding to each RB set, so as to use resources more flexibly and reduce transmission delay .

The embodiments of this application do not limit the entities that implement the above-mentioned logical functions such as IAB nodes, MTs, and DUs. For example, an IAB node can be understood as a relay node (Relay) or a donor node, an MT can be understood as a terminal entity, and a DU can be understood as a base station entity etc.

As shown in Figure 1, an instruction method provided by this application includes the following steps:

S110. Determine at least one frequency domain resource set of a cell of the distributed unit DU of the first node.

In order to realize that the same time domain symbol of the first node DU has different properties or availability on different frequency domain resources, the frequency domain resources may be divided. In this step, when determining the availability of soft symbols corresponding to the frequency domain resources of the DU cell of the first node, at least one frequency domain resource set of the DU cell of the first node may be determined first. The cell of the DU may be regarded as a cell serving the sub-node MT of the first node or the UE, that is, the serving cell of the UE or the sub-node of the first node is the cell of the DU of the first node.

The frequency domain resource set may include at least one of the following: a set of RBs provided from a CU; a carrier. How to determine the frequency domain resource set is not limited here.

S120: Acquire availability indication information of the corresponding soft symbols on the at least one frequency domain resource set.

After the at least one frequency domain resource set is determined, availability indication information may be obtained from the second node. The availability indication information may be considered as information indicating the availability of soft symbols corresponding to at least one frequency domain resource set. Availability indication information can be indicated by availability combination. Availability combinations can be thought of as combinations that indicate availability.

S130: Determine, according to the availability indication information, the availability of soft symbols corresponding to the cell of the DU of the first node on the at least one frequency domain resource set.

After obtaining the availability indication information, this step may analyze the availability indication information to determine the availability of the soft symbols corresponding to the first node DU cell on at least one frequency domain resource set.

How to determine the availability based on the availability indication information is not limited here, and may be determined based on the specific content of the availability combination information. For example, when the availability combination includes the resource availability parameter and the availability combination index, the availability combination is identified based on the availability combination index, and the availability of the soft symbol is indicated by the resource availability parameter in the availability combination.

An indication method provided by the present application, the method determines at least one frequency domain resource set of a cell of a distributed unit DU of the first node; obtains the availability indication information of the corresponding soft symbol on the at least one frequency domain resource set ; determining the availability of soft symbols corresponding to the cell of the DU of the first node on the at least one frequency domain resource set according to the availability indication information, which can effectively indicate the availability of soft symbols.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to simplify the description, only the difference from the above-mentioned embodiment is described in the modified embodiment.

In one embodiment, the frequency domain resource set includes at least one of the following: a resource block RB set of a cell of the DU of the first node obtained from the centralized unit CU (ie, the RB set provided by the CU), the The carrier of the cell of the DU of the first node.

In one embodiment, the availability information includes: first information and second information, the first information includes a list of at least one availability combination and the position of at least one availability combination index field in the second information, where The Availability Combination Index field indicates the Availability Combination Index.

The list of availability combinations can be thought of as a list formed by availability combinations. The availability combination index field may be regarded as a field in the second information indicating the availability combination index.

The availability combination index can be acquired from the second information through the position of the availability combination index field indicated in the first information in the second information. The list of availability combinations is then queried based on the availability combination index to determine the availability of soft symbols.

In one embodiment, an availability combination list includes at least one availability combination, and an availability combination includes a resource availability parameter and an availability combination index.

The resource availability parameter can be considered as a parameter characterizing the availability of soft symbols. After obtaining the availability combination index from the second information, the resource availability parameter corresponding to the availability combination index may be obtained from the availability combination list provided by the first information, and then the availability of the soft symbol is determined based on the resource availability parameter.

In one embodiment, the method includes at least one of the following:

The resource availability parameter indicates the availability of soft symbols corresponding to the frequency domain resource set in at least one time unit;

An element in the resource availability parameter indicates the availability of soft symbols corresponding to the frequency domain resource set in a time unit;

Wherein, the time unit includes a time slot or an integer multiple of the time slot.

In one embodiment, the method includes one of the following:

For the cell of the DU of the first node, the second information includes an availability combination index field, the one availability combination index field indicates an availability combination index, and the resource availability parameter corresponding to the availability combination index includes at least one element , one of the at least one element is applied to a frequency domain resource set;

For the cell of the DU of the first node, the second information includes at least one availability combination index field, and one availability combination index field in the at least one availability combination index field indicates an availability combination index, and the one availability combination index The index applies to a set of frequency domain resources.

One of the at least one element applied to a frequency domain resource set includes one of the following:

Every M elements in the elements included in the resource availability parameter are respectively applied to M frequency domain resource sets;

One element in every M elements included in the resource availability parameter is applied to one frequency domain resource set in the K frequency domain resource sets;

The elements included in the resource availability parameter are divided into M groups, and each group of elements is applied to a frequency domain resource set.

An availability combination index is applied to a set of frequency domain resources, including one of the following:

One of the availability combination indexes corresponding to the M availability combination index domains included in the second information is applied to a frequency domain resource set in the K frequency domain resource sets;

The availability combination indexes corresponding to the M availability combination index domains included in the second information are respectively applied to the M frequency domain resource sets;

Among them, M and K are positive integers.

The availability combination index domain included in the second information is divided into M groups, and each group is respectively applied to a frequency domain resource set.

In one embodiment, for the cell of the DU of the first node, the second information includes an availability combination index field, the one availability combination index field indicates an availability combination index, and the resource corresponding to the availability combination index The availability parameter includes at least one availability pattern index, the availability pattern corresponding to the one availability pattern index includes at least one element, one of the at least one element is applied to a frequency domain resource set, and the availability pattern list is included in the first The information may be a predefined list, and the availability pattern list includes at least one availability pattern, and an availability pattern corresponds to an availability pattern index.

In one embodiment, the position of the at least one availability combination index field in the second information is indicated in any of the following ways:

Indicate the starting position of one availability combination index field in the second information in the at least one availability combination index field, wherein the at least one availability combination index field is concatenated together in the second information;

Indicate the starting position of each availability combination index field in the second information;

indicating the starting position of the first availability combination index field indicated by the bitmap in the second information;

indicating the starting position of the bitmap in the second information;

indicating the starting position of the concatenated at least one availability combination index field in the second information;

Wherein, the bitmap is concatenated before the position of the first availability combination index field indicated by the bitmap, the bitmap includes at least 1 bit, and 1 bit in the at least 1 bit corresponds to an availability combination index field, The bit value of the bitmap indicates whether the second information indicates a corresponding availability combination index field, and the availability combination index indicated by the one availability combination index field corresponds to a frequency domain resource set.

In one embodiment, one availability combination index indicated by the one availability combination index field belongs to an availability combination list associated with the frequency domain resource set corresponding to the availability combination index, or at least one availability combination index field indicated by at least one availability combination index The composite index belongs to a list of availability composites.

In an embodiment, the first information further includes at least one of the following: a radio network temporary identity (Radio Network Tempory Identity, RNTI) indicated by the availability, the payload size of the second information, the monitoring of the physical downlink control channel PDCCH A collection of search spaces.

In an embodiment, the first information is carried by at least one of the following signaling: radio resource control RRC, F1 interface application protocol.

In an embodiment, the second information is carried by at least one of the following signaling: downlink control information DCI, and medium access control layer MAC control element CE.

In an embodiment, determining the availability of the soft symbols corresponding to the cell of the DU of the first node on the at least one frequency domain resource set according to the availability indication information includes:

Obtain the position of the availability combination index field corresponding to the at least one frequency domain resource set in the second information by using the first information;

obtaining a corresponding availability combination index at a corresponding position of the second information;

Obtain the availability of the soft symbol corresponding to the at least one frequency domain resource set in at least one time unit starting from a specific time unit according to the resource availability parameter corresponding to the obtained availability combination index;

The specific time unit is a start time unit for the second information to take effect.

In one embodiment, the starting time unit for the second information to take effect is: the earliest second time unit that intersects with the first time unit in which the second information is detected, or the first time unit that occurs when the second information is detected. The first time unit of the two information is separated from the earliest second time unit of Y second time units, wherein the first time unit is the time unit of the mobile terminal MT of the first node, and the second time unit is the first time unit of the first node. The time unit of the DU, Y is an integer greater than or equal to 0, and Y is related to the time interval when the second information starts to take effect.

In an exemplary embodiment, the present application further provides an indication method, and FIG. 2 is a schematic flowchart of another indication method provided by an embodiment of the present application. In the case of symbol availability indication, the method may be executed by an indication device, and the device may be implemented by software and/or hardware and configured in the second node.

As shown in Figure 2, the instruction method provided by this application includes the following steps:

S210: Determine availability indication information of soft symbols corresponding to at least one frequency domain resource set of the cell of the DU of the first node.

The second node may determine the availability of the soft symbol based on the actual situation, and then indicate to the first node through the availability indication information. How the availability indication is determined is not limited here.

S220. Send the availability indication information.

After the availability indication information is determined, in this step, the availability indication information may be sent to the first node for the first node to determine the availability of soft symbols.

In an indication method provided by the present application, firstly determine the availability indication information of soft symbols corresponding to at least one frequency domain resource set of the cell of the DU of the first node; then send the availability indication information to effectively determine the availability indication information of the first node Availability of soft symbols corresponding to at least one frequency domain resource set of the cell of the DU.

In one embodiment, the frequency domain resource set includes at least one of the following: a set of resource blocks RB of the cell of the DU of the first node obtained from the centralized unit CU, the set of resource blocks of the cell of the DU of the first node obtained from the centralized unit CU, carrier.

In one embodiment, the method includes at least one of the following:

In one embodiment, the method includes one of the following:

indicating the starting position of the bitmap in the second information;

In an embodiment, the first information further includes at least one of the following: a radio network temporary identifier RNTI indicated by availability, a payload size of the second information, and a search space set for monitoring the physical downlink control channel PDCCH.

The present application is exemplarily described below, and the indication method provided by the present application may be regarded as a usability indication method. Currently, for non-time division multiplexing scenarios, the frequency domain resources of an IAB-DU cell or carrier are usually divided into multiple parts, and the time-frequency resources corresponding to each part are configured as Hard, Soft or NA attributes, where Soft The availability of resources needs to be further indicated, and there is no corresponding solution for how to indicate the availability of soft resources corresponding to multiple parts. However, IAB-MT and IAB-DU can use resources more flexibly and reduce transmission delay by adopting non-time division multiplexing. Therefore, how to indicate the availability of multiple parts of Soft resources is an urgent problem to be solved.

The second node, such as the parent node of the DU of the first node, or the serving cell of the CU or the MT of the first node, may indicate the first node by sending availability indication information to the IAB node (or the MT of the first node, ie IAB-MT). A node's DU, that is, the availability of Soft resources of the IAB-DU cell. The IAB node (or the IAB-MT) determines the availability of the IAB-DU cell Soft resource according to the received availability indication information. In this application, the IAB node is the first node, the IAB-DU is the DU of the first node, and the IAB-MT is the MT of the first node.

In an embodiment, the availability indication information includes: first information and second information. Wherein, the first information includes: a list of at least one availability combination, and the position of at least one availability combination index field in the second information. The availability combination index field is used to indicate the availability combination index.

In one embodiment, an availability combination list contains at least one availability combination.

In one embodiment, an availability combination includes a resource availability parameter (resourceAvailability) and an availability combination index. That is, the availability combination provides resourceAvailability, and the mapping between resourceAvailability and availability combination index.

In an embodiment, resourceAvailability indicates the availability of Soft symbols corresponding to the frequency domain resource set in at least one time unit. For example, resourceAvailability is applied to the frequency domain resource set, that is, valid for the frequency domain resource set.

In an embodiment, an element in resourceAvailability indicates the availability of Soft symbols corresponding to the frequency domain resource set in one time unit.

FIG. 2a is a schematic diagram of an availability combination list given by an embodiment of the present application. Referring to Figure 2a, the availability combination list may include at least one availability combination, and each availability combination contains a resourceAvailability (ie, a resource availability parameter) and an availability combination index, and resourceAvailability and availability combination index are in one-to-one correspondence. An element value of resourceAvailability indicates the availability of Soft symbols for a set of frequency domain resources in a time unit. In this application, L indicating the number of availability combination indices (or indicating the maximum value of availability combination indices) is a positive integer.

For example, an element value of 0 indicates that the availability of Soft symbols is not indicated; an element value of 1 indicates that downlink Soft symbols are indicated as available, and the availability of uplink and flexible Soft symbols is not indicated; an element value of 2 indicates that uplink Soft symbols are indicated to be available, The availability of downlink and flexible Soft symbols is not indicated; an element value of 3 indicates that downlink and uplink Soft symbols are indicated as available, and the availability of flexible Soft symbols is not indicated; an element value of 4 indicates that flexible Soft symbols are indicated as available, and no downlink and Availability of uplink Soft symbols; an element value of 5 indicates that downlink and flexible Soft symbols are indicated as available, and the availability of uplink Soft symbols is not indicated; an element value of 6 indicates that uplink and flexible Soft symbols are indicated as available, and no downlink Soft symbols are indicated. Availability; an element value of 7 indicates that downstream, upstream and flexible Soft symbols are indicated as available.

In an embodiment, for a cell of a DU of an IAB node, the second information includes an availability combination index field, and the one availability index field indicates an availability combination index. The resourceAvailability corresponding to the availability combination index indicates the availability of the soft symbols corresponding to at least one frequency domain resource set in at least one time unit from the specific time unit of the DU to the IAB node.

In one embodiment, one of the at least one element of resourceAvailability applies to a set of frequency domain resources.

In this embodiment, applying one of the at least one element of resourceAvailability to a frequency domain resource set includes: applying every M element of resourceAvailability to M frequency domain resource sets respectively; or applying every M element of resourceAvailability to M frequency domain resource sets; One element is applied to one frequency domain resource set among N frequency domain resource sets; or the elements of resourceAvailability are divided into M groups, and each group of elements is applied to one frequency domain resource set.

Fig. 2b is a mapping relationship diagram of an availability combination index and a time unit provided by an embodiment of the present application. As shown in Fig. 2b, for example, M=2, that is, it is assumed that a cell has 2 frequency domain resource sets (that is, 2 required A frequency domain resource set indicating the availability of its Soft resources), each 2 elements in resourceAvailability are applied to 2 frequency domain resource sets respectively (it can be understood that the elements in even-numbered positions in resourceAvailability are applied to a frequency-domain resource set, and odd-numbered positions are applied to a set of frequency domain resources. The elements of , apply to another set of frequency-domain resources).

For another example, M=2, assuming that a cell has 2 frequency domain resource sets, resourceAvailability contains 2n (n is a positive integer) elements, where the first n elements are applied to frequency domain resource set 0, and the last n elements are applied to frequency domain resource set 0. Domain Resource Collection 1.

In one embodiment, the set of frequency domain resources may be a set of RBs. For example, the M frequency domain resource sets are respectively M RB sets.

In an embodiment, the frequency domain resource set may be an RB set, or may be a carrier of a cell of a DU of an IAB node. For example, one frequency domain resource set in the M frequency domain resource sets is the carrier of the cell of the DU of the IAB node, and the other M-1 frequency domain resource sets are respectively M-1 RB sets.

In an embodiment, for the cell (or carrier) of the first node, the second information includes at least one availability combination index field, and one availability combination index field in the at least one availability combination index field indicates one availability combination index, one The resourceAvailability corresponding to the availability combination index is applied to a frequency domain resource set. For example, in Fig. 2a, resourceAvailability contains 4 elements {7 2 0 1}, which respectively indicate the availability of Soft symbols on 4 time units of a frequency domain resource set. For example, an element value of 7 indicates that the downlink, uplink and flexible Soft symbols of time unit #0 are indicated as available; an element value of 2 indicates that the uplink Soft symbols of time unit #1 are indicated to be available, and the availability of downlink and flexible Soft symbols is not indicated; An element value of 0 indicates that the availability of Soft symbols in time unit #2 is not indicated; an element value of 1 indicates that the downlink Soft symbols of time unit #3 are indicated as available, and the availability of uplink and flexible Soft symbols is not indicated.

In an embodiment, for the cell of the DU of the first node, the position of the availability combination index in the second information is indicated by any of the following methods:

Manner 1: Indicate the starting position of one availability combination index field in the second information in the at least one availability combination index field, wherein the at least one availability combination index field is concatenated together in the second information. For example, the starting position of the first availability combination index field in the second information is indicated, and M availability combination index fields are concatenated together in the second information. FIG. 2c provides an availability combination index field provided by an embodiment of the present application. As shown in FIG. 2c , the first, second, .

Mode 2: Indicate the starting position of each availability combination index field in the second information. FIG. 2d is a schematic diagram of another indication mode of the availability combination index field provided by the embodiment of the present application. As shown in FIG. 2d, each availability The start positions of the combined index fields in the second information are all indicated.

Mode 3: Indicate the starting position of the first availability combination index field indicated by the bitmap in the second information, and the position of the first availability combination index field indicated by the bitmap in the second information is preceded by a bitmap. At least one bit of the bitmap corresponds to an availability combination index field, and the value of the bit indicates whether the second information indicates the corresponding availability combination index field. The bitmap and the availability combination index fields indicated by the bitmap are concatenated together in the second information.

For example, the first, second, and Nth availability combination index fields indicated by the bitmap are placed in the second information in sequence from the starting position, where N is a positive integer less than or equal to M, and M may be a bit The number of bits included in the graph.

Fig. 2e is a schematic diagram of yet another indication manner of the availability combination index field provided by an embodiment of the present application. As shown in Fig. 2e, M=2, the bitmap contains two bits, and the value is 10 (ie, N=1), indicating that the first The second information indicates the first availability composite index field, and does not indicate the second availability composite index field.

Mode 4: Indicate the starting position of the bitmap in the second information, the bitmap is concatenated before the position of the first availability combination index field indicated by the bitmap, the bitmap includes at least 1 bit, the One of the at least one bits corresponds to an availability combination index field, and the value of the bit of the bitmap indicates whether the second information indicates the corresponding availability combination index field. For example, the first, second, and Nth availability combination index fields indicated by the bitmap are sequentially placed into the second information from the starting position +M, where N is a positive integer less than or equal to M, and M is The number of bits of the bitmap, FIG. 2f is a schematic diagram of another indication mode of the availability combination index field provided by the embodiment of the present application, as shown in FIG. 2f, M=2, the bitmap contains two bits, and the value is 11 (ie N=2), indicating that the second information indicates the first availability combination index and also indicates the second availability combination index.

In one embodiment, M availability combination index domains are associated with M frequency domain resource sets. For example, the M frequency domain resource sets may be arranged in ascending (or descending) order of frequency domain resource set indices, or in a predetermined order, corresponding to the first, second, ..., Mth availability combination indices in sequence. For example, the M availability combination index fields are the first, . The frequency-domain resource sets may be arranged in ascending order of the frequency-domain resource set indexes, and the kth availability combination index corresponds to the X _kth frequency-domain resource set, where k=1, 2, ..., M, X ₁ ≤X ₂ ≤ _ΛXM .

Manner 5: Indicate the starting positions of the concatenated M availability combination index fields in the second information.

In one embodiment, the M availability combination index fields respectively belong to the M availability combination lists. For example, each frequency domain resource set is configured with an availability combination list, and the availability combination index field corresponding to the frequency domain resource set belongs to the availability combination list associated with the frequency domain resource set.

In an embodiment, an availability combination index indicated by an availability combination index field corresponds to a frequency domain resource set.

In an embodiment, M availability combination index fields belong to the same availability combination list, for example, a cell (or carrier) is configured with an availability combination list, and the availability combination index fields corresponding to all frequency domain resource sets belong to the same availability combination list. .

In one embodiment, the number of bits occupied by the usability combination index field in the second information is:

where maxInd is the maximum value of the corresponding availability combination index.

In an embodiment, for a set of frequency domain resources, the IAB node (ie the first node) searches the corresponding availability combination list according to the availability combination index field indicated by the received second information, and finds the availability combination index field indicated by the availability combination index field. The availability combination corresponding to the availability combination index, and the availability of the soft symbol corresponding to the frequency domain resource set in at least one time unit is determined according to the resourceAvailability in the availability combination.

In one embodiment, the set of frequency domain resources may be a set of RBs. The M RB sets respectively correspond to the M availability combination indexes. For example, the M RB sets may be arranged in ascending order of RB set indices, corresponding to the first, second, ...., Mth availability combination index fields in sequence. The correspondence here is just an example, and the correspondence in this application may also be any other form of correspondence.

In an embodiment, the frequency domain resource set may be an RB set, or may be a cell (or carrier) of a DU of an IAB node. For example, a cell (or carrier) can be regarded as a set of frequency domain resources, and a set of RBs can also be regarded as a set of frequency domain resources. The cell (or carrier) corresponds to the first availability combination index field, the M-1 RB sets can be arranged in ascending order of RB set indices, and the n+1 th availability combination index corresponds to the Y _n th RB set, where n=1, 2, ..., M-1, Y ₁ ≤ Y ₂ ≤ ΛY _M-1 .

In an embodiment, for an RB set, the availability combination index field (corresponding resourceAvailability) in the corresponding second information indicates the availability of the Soft symbol corresponding to the RB set in at least one time unit.

In an embodiment, for a cell (or carrier), the availability combination index field (corresponding resourceAvailability) in the corresponding second information indicates the availability of Soft symbols of the cell (or carrier) in at least one time unit. .

In one embodiment, M, X _k , and Y _n are all positive integers.

In one embodiment, the IAB node obtains the position of the availability combination index field corresponding to the RB set in the second information through the first information, obtains the availability combination index field at the corresponding position of the second information, and combines the index fields according to the availability. The corresponding resourceAvailability determines the availability of the Soft symbols corresponding to the RB set in at least one time unit starting from a specific time unit.

In one embodiment, the IAB node obtains the position of the availability combination index field corresponding to the cell (or carrier) in the second information through the first information, and obtains the availability combination index field at the corresponding position of the second information, according to the availability The resourceAvailability corresponding to the combined index field determines the availability of Soft symbols corresponding to the cell (or carrier, or time domain resource attribute configuration) in at least one time unit starting from a specific time unit.

In one embodiment, an element in resourceAvailability indicates an availability pattern index, an availability pattern index indicates an availability pattern, an element in the availability pattern corresponds to (or is associated with) a set of frequency domain resources, and an element in the availability pattern indicates a time unit Availability of Soft symbols corresponding to one frequency-domain resource set in . For example, an availability pattern includes 2 elements, respectively corresponding to 2 frequency domain resource sets, and an availability pattern corresponds to an availability pattern index. FIG. 2g is a schematic diagram of an availability indication method provided by this embodiment of the application, as shown in FIG. 2g , the availability pattern list includes at least one availability pattern, and provides a mapping relationship between the availability pattern and the availability pattern index, where i is a positive integer.

For example, the meaning of the element values in the availability pattern may be: the element value of 0 indicates that the availability of Soft symbols is not indicated; the element value of 1 indicates that the downlink Soft symbols are indicated as available, and the availability of uplink and flexible Soft symbols is not indicated; the element value is 2 indicates that uplink Soft symbols are indicated as available, and the availability of downlink and flexible Soft symbols is not indicated; an element value of 3 indicates that downlink and uplink Soft symbols are indicated as available, and the availability of flexible Soft symbols is not indicated; an element value of 4 indicates that flexible Soft symbols are available. The symbol is indicated as available, and the availability of downlink and uplink Soft symbols is not indicated; an element value of 5 indicates that downlink and flexible Soft symbols are indicated as available, and the availability of uplink Soft symbols is not indicated; an element value of 6 indicates that uplink and flexible Soft symbols are Indicates available, does not indicate the availability of downlink Soft symbols; an element value of 7 indicates that downlink, uplink and flexible Soft symbols are indicated as available.

In an embodiment, for a cell of a DU of an IAB node, the second information indicates an availability combination index field, and the resourceAvailability corresponding to the availability index field indicates that the DU of the IAB node starts from a specific time unit in the frequency domain of at least one time unit. Availability of soft symbols corresponding to resource collections.

In one embodiment, the element in resourceAvailability indicates to the IAB node the availability of soft symbols corresponding to at least one frequency domain resource set in one time unit of the DU.

In an embodiment, the configuration information of the search space set where the PDCCH carrying the second information is located is included in the PDCCH-related configuration (eg, PDCCH-Config, PDCCH-ConfigCommon). Wherein, PDCCH-Config is used to configure user terminal or MT-specific PDCCH parameters, and PDCCH-ConfigCommon is used to configure cell-specific PDCCH parameters.

In an embodiment, for an IAB-DU cell, the first information further includes: a cell identifier, a frequency domain resource set index, a subcarrier interval indicated by availability, and a time interval at which the second information takes effect.

In one embodiment, for an IAB-DU cell, the availability indication RNTI is used for the IAB-MT to detect downlink control information (Downlink Control Information, DCI) indicating the availability combination index field.

In an embodiment, the starting time unit for the second information to take effect is: the earliest second time unit that intersects with the first time unit in which the second information is detected, or the second time unit that occurs when the second information is detected. The first time unit is the earliest second time unit of Y second time units, wherein the first time unit is the time unit of the mobile terminal MT of the first node, and the second time unit is the time unit of the DU of the first node. Time unit, Y is an integer greater than or equal to 0, and Y is related to the time interval when the second information becomes effective.

In one embodiment, Y is related to the time interval at which the second information becomes valid. For example, if the granularity of the time interval is the second time unit, then Y and the value corresponding to the time interval are equal. If the granularity of the time interval is not the time unit, the time interval needs to be converted into the second time unit number Y.

In an embodiment, the reference subcarrier spacing of the availability combination (ie the subcarrier spacing used by the time unit) is the same as the subcarrier spacing in the IAB-DU cell resource configuration, or the subcarrier spacing of the reference carrier configured in the RB set.

In an embodiment, the first information is carried by at least one of the following signaling: radio resource control (Radio Resource Control, RRC), F1 interface application protocol (F1 Application Protocol, F1-AP).

In an embodiment, the second information is carried by at least one of the following signaling: downlink control information DCI, and a media access control layer (Media Access Control, MAC) control element (Control Element, CE).

In one embodiment, the IAB-MT monitors the physical downlink control channel corresponding to the second information in at least one of the following search spaces: a common search space and a dedicated search space.

In an embodiment, for the same time-frequency resource, the IAB node does not expect to receive multiple pieces of second information indicating the availability of Soft symbols.

In an embodiment, for the same time-frequency resource, the IAB node does not expect to receive multiple pieces of second information indicating that the availability of Soft symbols is different.

In one embodiment, the time unit comprises a time slot or an integer multiple of a time slot.

In an embodiment, the frequency domain resource set includes at least one of the following: an RB set, a carrier of a cell.

For example, for a TDD cell, the carrier of the cell includes at least one of the following: the TDD carrier of the cell and the SUL carrier;

For example, for an FDD cell, the carrier of the cell includes at least one of the following: a downlink carrier, an uplink carrier, and a SUL carrier.

In one embodiment, the configuration of the RB set is provided by the CU to the DU of the IAB node.

The above examples may be combined in any combination without conflict.

If the IAB node is provided with high layer parameters such as AvailabilityIndicator (i.e. the first information), the IAB node is provided with an availability indication RNTI (i.e. AI-RNTI) and DCI format 2_x (i.e. the second information) payload size. The IAB node is also provided with a search space set configuration to listen to the Physical Downlink Control Channel PDCCH.

For each cell in the set of cells of the IAB-DU, the IAB-DU is provided:

The identity of the IAB-DU cell;

at least one availability indicator (AI) indexing the position of the field in the second information. An AI index field corresponds to an availability combination index (that is, the value of the AI index field is an availability combination index);

Availability combination list, wherein each availability combination in the availability combination list includes: resourceAvailability, which is used to indicate the availability of soft symbols of at least one time slot on a frequency domain resource set; the mapping of AI index field in DCI format 2_x to resourceAvailability. Among them, the value of the AI index field is the availability combination index.

In at least one AI index field in the second information, the nth AI index field includes B _n bits, wherein,

max Index _n is the maximum value of the availability combination index corresponding to the nth AI index domain. From DCI format 2_x

bits to

The bits (B _n bits in total) are the nth AI index fields, where S is the starting position of at least one AI index field in DCI format2_x, B ₀ =0, and B _n and n are positive integers. That is, at least one AI index is concatenated and placed in the second information.

The frequency domain resource sets may be arranged in ascending order (or descending order) of the frequency domain resource set indices, or arranged in a predetermined order, and the X _nth frequency domain resource set is associated with the nth AI index domain, where n is 1, 2..., X ₁ ≤X ₂ ≤X ₃ ≤Λ.

For the X _n th frequency domain resource set, the n th AI index field in DCI format 2_x indicates to the IAB-DU the availability of soft symbols in each slot in at least one slot from a particular slot. The specific time slot is the earliest time slot of the IAB-DU overlapping with the time slot of the IAB-MT in which the IAB-MT detects the DCI format 2_x.

For example, the number of time slots is greater than or equal to the PDCCH listening period of DCI format 2_x provided by the search space configuration.

For example, if the PDCCH listening period of DCI format 2_x is less than the duration of the soft symbol availability combination on at least one slot obtained by the IAB-MT at the PDCCH listening time of DCI format 2_x through the corresponding AI index field value, and the IAB-MT detects To at least one DCI format 2_x indicating a combination of availability of soft symbols, the IAB-MT expects the same value for each of the multiple DCI formats 2_x indicating a combination of availability of soft symbols in a slot.

For example, IAB-MT may listen for PDCCH candidates of DCI format 2_x with CRC scrambled by AI-RNTI in one or both of the following search spaces:

Type 3-PDCCH public search space set whose search space type configured through the search space (ie SearchSpace) in PDCCH-Config is common;

The set of UE-specific search spaces where the search space type configured by SearchSpace in PDCCH-Config is ue-Specific.

A group of cells of an IAB-DU refers to a group of cells of an IAB-DU configured to an IAB node (ie, the first node) through the AvailabilityIndicator (ie, the first information).

In all the above embodiments and examples, the IAB node is only an example, and the above solution is also applicable to other nodes, such as relay nodes, base stations and other wireless communication devices of any type. The IAB nodes are replaced with corresponding devices, and the terminal entities of the devices are replaced IAB-MT, the base station entity of the device replaces the IAB-DU, and the corresponding solution can be obtained.

In all the above embodiments and examples, unless otherwise specified, the time unit refers to the time unit of the DU of the first node.

In an exemplary embodiment, the present application provides an indication device, and FIG. 3 is a schematic structural diagram of an indication device provided by an embodiment of the present application. The device may be configured on a first node, and the device includes:

The first determining module 31 is configured to determine at least one frequency domain resource set of the cell of the distributed unit DU of the first node;

The obtaining module 32 is configured to obtain the availability indication information of the corresponding soft symbols on the at least one frequency domain resource set;

The second determining module 33 is configured to determine, according to the availability indication information, the availability of soft symbols corresponding to the cell of the DU of the first node on the at least one frequency domain resource set.

The indication device provided in this embodiment is used to implement the indication method shown in FIG. 1 . The implementation principle and technical effect of the indication device provided in this embodiment are similar to the indication method in the embodiment shown in FIG. 1 , and details are not repeated here.

In one embodiment, the apparatus includes at least one of the following:

In one embodiment, the apparatus includes one of the following:

For the cell of the DU of the first node, the second information includes an availability combination index field, the one availability combination index field indicates an availability combination index, and the resource availability parameter corresponding to the availability combination index includes at least one element one of the at least one element is applied to a frequency domain resource set;

indicating the starting position of the bitmap in the second information;

In one embodiment, the second determining module 33 is configured to:

In one embodiment, the starting time unit for the second information to take effect is: the earliest second time unit that intersects with the first time unit in which the second information is detected, or the first time unit that occurs when the second information is detected. The first time unit of the two information is separated from the earliest second time unit of Y second time units, wherein the first time unit is the time unit of the mobile terminal MT of the first node, and the second time unit is the first time unit of the first node. The time unit of the DU, Y is an integer greater than or equal to 0, and Y is related to the time interval at which the second information starts to take effect.

In an exemplary implementation, an embodiment of the present application provides an indication device, and FIG. 4 is a schematic structural diagram of another indication device provided by an embodiment of the present application. The device is configured on a second node, and the device includes:

The determining module 41 is configured to determine the availability indication information of the soft symbol corresponding to at least one frequency domain resource set of the cell of the DU of the first node;

The sending module 42 is configured to send the availability indication information.

The indication device provided in this embodiment is used to implement the indication method shown in FIG. 2 . The implementation principle and technical effect of the indication device provided in this embodiment are similar to the indication method in the embodiment shown in FIG. 2 , and details are not repeated here.

In one embodiment, the availability information includes: first information and second information, the first information includes a list of at least one availability combination and a position of at least one availability combination index field in the second information, where The Availability Combination Index field indicates the Availability Combination Index.

In one embodiment, the apparatus includes at least one of the following:

In one embodiment, the apparatus includes one of the following:

indicating the starting position of the bitmap in the second information;

In an exemplary embodiment, the present application provides a first node, and FIG. 5 is a schematic structural diagram of a first node provided by an embodiment of the present application. As shown in FIG. 5 , the first node provided by this application includes one or more processors 51 and a storage device 52 ; the processors 51 in the first node may be one or more, and in FIG. 5 , one processor is used 51 as an example; the storage device 52 is configured to store one or more programs; the one or more programs are executed by the one or more processors 51, so that the one or more processors 51 are implemented as implemented in this application instructions as described in the example.

The first node further includes: a communication device 53 , an input device 54 and an output device 55 .

The processor 51 , the storage device 52 , the communication device 53 , the input device 54 , and the output device 55 in the first node may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 5 .

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

The communication device 53 may include a receiver and a transmitter. The communication device 53 is configured to transmit and receive information according to the control of the processor 51 . Information includes, but is not limited to, availability indication information.

As a computer-readable storage medium, the storage device 52 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the instruction method described in FIG. A determination module 31, an acquisition module 32 and a second determination module 33). The storage device 52 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the first node, and the like. Additionally, storage device 52 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, storage device 52 may include memory located remotely from processor 51, which may be connected to the first node through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

In an exemplary embodiment, the present application provides a second node, and FIG. 6 is a schematic structural diagram of a second node provided by an embodiment of the present application. As shown in FIG. 6 , the second node provided by the present application includes one or more processors 61 and a storage device 62 ; the processors 61 in the second node may be one or more, and one processor is used in FIG. 6 . 61 as an example; the storage device 62 is configured to store one or more programs; the one or more programs are executed by the one or more processors 61, so that the one or more processors 61 are implemented as implemented in this application instructions as described in the example.

The second node further includes: a communication device 63 , an input device 64 and an output device 65 .

The processor 61 , the storage device 62 , the communication device 63 , the input device 64 and the output device 65 in the second node may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 6 .

The input device 64 may be used to receive input numerical or character information, and to generate key signal input related to user settings and function control of the second node. The output device 65 may include a display device such as a display screen.

The communication device 63 may include a receiver and a transmitter. The communication device 63 is configured to transmit and receive information according to the control of the processor 61 . Information includes, but is not limited to, availability indication information.

As a computer-readable storage medium, the storage device 62 can be configured to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the instruction method described in FIG. 2 of the present application (for example, a determination module in the instruction device). 41 and sending module 42). The storage device 62 may include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the second node, and the like. Additionally, storage device 62 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, storage device 62 may include memory located remotely from processor 61, which may be connected to the second node through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

Embodiments of the present application further provide a storage medium, where a computer program is stored in the storage medium, and when the computer program is executed by a processor, any one of the methods described in the present application is implemented, and the storage medium stores a computer program, and the computer When the program is executed by the processor, any one of the indication methods described in the embodiments of the present application is implemented. The indication method applied to the first node and the indication method applied to the second node, wherein the indication method applied to the first node includes: determining at least one frequency domain resource of a cell of the distributed unit DU of the first node gather;

The indication method applied to the second node includes: determining availability indication information of soft symbols corresponding to at least one frequency domain resource set of the cell of the DU of the first node;

The availability indication information is sent.

The computer storage medium of the embodiments of the present application may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above. More specific examples (non-exhaustive list) of computer readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (Read Only Memory, ROM), Erasable Programmable Read Only Memory (EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination of the above . A computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device.

A computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave, with computer-readable program code embodied thereon. Such propagated data signals may take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .

Program code embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.

Computer program code for performing the operations of the present application may be written in one or more programming languages, including object-oriented programming languages—such as Java, Smalltalk, C++, but also conventional Procedural programming language - such as the "C" language or similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (eg, using an Internet service provider to via Internet connection).

The above descriptions are merely exemplary embodiments of the present application, and are not intended to limit the protection scope of the present application.

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

Embodiments of the present application may be implemented by the execution of computer program instructions by a data processor of a mobile device, eg in a processor entity, or by hardware, or by a combination of software and hardware. Computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages source or object code.

The block diagrams of any logic flow in the figures of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions. Computer programs can be stored on memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, Read-Only Memory (ROM), Random Access Memory (RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc. Computer-readable media may include non-transitory storage media. The data processor may be of any type suitable for the local technical environment, such as, but not limited to, a general purpose computer, a special purpose computer, a microprocessor, a Digital Signal Processing (DSP), an Application Specific Integrated Circuit (ASIC) ), programmable logic devices (Field-Programmable Gate Array, FGPA) and processors based on multi-core processor architecture.

Claims

An indication method, applied to the first node, comprising:

determining at least one frequency domain resource set of the cell of the distributed unit DU of the first node;

acquiring the availability indication information of the corresponding soft symbols on the at least one frequency domain resource set;

The availability of the soft symbol corresponding to the cell of the DU of the first node on the at least one frequency domain resource set is determined according to the availability indication information.
The method according to claim 1, wherein the frequency domain resource set includes at least one of the following: a resource block RB set of a cell of a DU of the first node obtained from a centralized unit CU, the first node The carrier of the cell of the DU.
The method of claim 1, wherein the availability information comprises: first information and second information, the first information comprising a list of at least one availability combination and at least one availability combination index field in the second information The position in the Availability Combination Index field indicates the Availability Combination Index.
The method of claim 3, wherein an availability combination list includes at least one availability combination, and an availability combination includes a resource availability parameter and an availability combination index.
The method according to claim 4, wherein the resource availability parameter satisfies at least one of the following:

The resource availability parameter indicates availability of soft symbols corresponding to the frequency domain resource set in at least one time unit;

An element in the resource availability parameter indicates the availability of soft symbols corresponding to the frequency domain resource set in a time unit;

Wherein, the time unit includes a time slot or an integer multiple of the time slot.
The method of claim 4, comprising one of the following:

For the cell of the DU of the first node, the second information includes an availability combination index field, the one availability combination index field indicates an availability combination index, and the resource availability parameter corresponding to the availability combination index includes at least one element , one of the at least one element is applied to a frequency domain resource set;

For the cell of the DU of the first node, the second information includes at least one availability combination index field, and one availability combination index field in the at least one availability combination index field indicates an availability combination index, and the one availability combination index The index applies to a set of frequency domain resources.
The method of claim 4, wherein,

For the cell of the DU of the first node, the second information includes an availability combination index field, the one availability combination index field indicates an availability combination index, and the resource availability parameter corresponding to the availability combination index includes at least one availability a pattern index, the availability pattern corresponding to the one availability pattern index includes at least one element, one of the at least one element is applied to a frequency domain resource set, and the availability pattern list is included in the first information or is predefined The list of usability patterns includes at least one usability pattern, and one usability pattern corresponds to one usability pattern index.
The method of claim 3, wherein the position of the at least one availability combination index field in the second information is indicated in any of the following ways:

the starting position of one availability combination index field in the second information in the at least one availability combination index field, wherein the at least one availability combination index field is concatenated together in the second information;

the starting position of each availability combination index field in the second information;

the starting position of the first availability combination index field indicated by the bitmap in the second information;

the starting position of the bitmap in the second information; and

the starting position of the concatenated at least one availability combination index field in the second information;

Wherein, the bitmap is concatenated before the position of the first availability combination index field indicated by the bitmap, the bitmap includes at least 1 bit, and 1 bit in the at least 1 bit corresponds to an availability combination index field, The bit value of the bitmap indicates whether the second information indicates a corresponding availability combination index field, and the availability combination index indicated by the one availability combination index field corresponds to a frequency domain resource set.
The method according to claim 3, wherein one availability combination index indicated by one availability combination index field belongs to an availability combination list associated with the frequency domain resource set corresponding to the one availability combination index, or the at least one availability combination index At least one availability combination index indicated by the field belongs to an availability combination list.
The method according to claim 3, wherein the first information further includes at least one of the following: a radio network temporary identifier RNTI indicated by availability, a payload size of the second information, a search space for monitoring a physical downlink control channel (PDCCH) gather.
The method according to claim 3, wherein the first information is carried by at least one of the following signaling: radio resource control (RCC), and F1 interface application protocol.
The method according to claim 3, wherein the second information is carried by at least one of the following signaling: downlink control information DCI, and medium access control layer MAC control element CE.
The method according to claim 3, wherein the determining the availability of soft symbols corresponding to the cell of the DU of the first node on the at least one frequency domain resource set according to the availability indication information comprises:

Obtain the position of the availability combination index field corresponding to the at least one frequency domain resource set in the second information by using the first information;

obtaining a corresponding availability combination index at a corresponding position of the second information;

Obtain the availability of the soft symbol corresponding to the at least one frequency domain resource set in at least one time unit starting from a specific time unit according to the resource availability parameter corresponding to the obtained availability combination index;

The specific time unit is a start time unit for the second information to take effect.
The method according to claim 13, wherein the starting time unit for the second information to take effect is: the earliest occurring second time unit intersecting with the first time unit in which the second information is detected, or, and The first time unit in which the second information is detected is separated from the earliest second time unit of Y second time units, wherein the first time unit is the time unit of the mobile terminal MT of the first node, The second time unit is the time unit of the DU of the first node, Y is an integer greater than or equal to 0, and Y is related to the time interval at which the second information starts to take effect.
An indication method, applied to the second node, comprising:

determining availability indication information of soft symbols corresponding to at least one frequency domain resource set of the cell of the DU of the first node;

The availability indication information is sent.
An indication device, configured on a first node, comprising:

a first determining module, configured to determine at least one frequency domain resource set of a cell of the distributed unit DU of the first node;

an obtaining module, configured to obtain availability indication information of the corresponding soft symbols on the at least one frequency domain resource set;

The second determining module is configured to determine, according to the availability indication information, the availability of the soft symbols corresponding to the cell of the DU of the first node on the at least one frequency domain resource set.
An indication device, configured on the second node, comprising:

A determining module, configured to determine availability indication information of soft symbols corresponding to at least one frequency domain resource set of the cell of the DU of the first node;

A sending module, configured to send the availability indication information.
A first node, comprising:

one or more processors;

storage means arranged to store one or more programs;

The one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 1-14.
A second node comprising:

one or more processors;

storage means arranged to store one or more programs;

The one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of claim 15 .
A storage medium, where a computer program is stored in the storage medium, and when the computer program is executed by a processor, the method according to any one of claims 1-15 is implemented.