CN114520987A

CN114520987A - Method, device and equipment for processing conflict of IAB (inter-access node) and readable storage medium

Info

Publication number: CN114520987A
Application number: CN202011313165.6A
Authority: CN
Inventors: 王欢; 刘进华; 蔡日开
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2022-05-20
Also published as: WO2022105783A1

Abstract

The application discloses a conflict processing method, a device, equipment and a readable storage medium of an IAB node, wherein the method comprises the following steps: determining a first operation of the DU and/or MT in case of a collision between the DU and MT of the IAB node; or, according to a preset conflict between the DU and the MT of the IAB node, limiting the resource configuration of the IAB node or a parent node of the IAB node, or a resource indication of the IAB node by the parent node, or a resource scheduling or transmission parameter setting of the IAB node or the parent node; or acquiring resource type information corresponding to a serving cell of the MT, where the resource type information is resource type configuration of a DU of a parent node of the IAB node, or a resource type that can be used when the parent node of the IAB node schedules the serving cell of the MT, and processing a conflict between the DU of the IAB node and the MT according to the acquired resource type information corresponding to the serving cell of the MT.

Description

Method, device and equipment for processing conflict of IAB (inter-access node) and readable storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a readable storage medium for processing a conflict of an Integrated Access Backhaul (IAB) node.

Background

When a Distributed Unit (DU) of the IAB and a Mobile Terminal (MT) function part perform transceiving operations, a problem of transceiving collision (uplink or downlink collision, or resource type indication collision, etc.) may occur due to hardware limitations (half duplex, Power Spectral Density (PSD) balance, Power limitation)/interference limitation/resource multiplexing limitation, etc.). Similarly, when an MT Master Cell Group (MCG) and an MT Slave Cell Group (SCG) perform transceiving operations, a collision problem may also occur.

In the MT dual-link scenario, for a serving cell (serving cell) of the MCG and a corresponding DU cell (cell), and a serving cell of the SCG and a corresponding DU cell, scheduling/resource indication/power control mechanisms are independent from each other, which may cause a collision problem to be more serious.

Disclosure of Invention

Embodiments of the present application provide a method, an apparatus, a device, and a readable storage medium for collision processing of an IAB node, which solve a resource/power collision between a DU of the IAB node and an MT, and solve a problem of power sharing or collision between cells of the MT.

In a first aspect, a collision handling method performed by an IAB node is provided, and includes:

determining a first operation of the DU and/or MT in case of a collision between the DU and MT of the IAB node;

or,

according to the preset conflict between DU and MT of the IAB node, limiting the resource configuration of the IAB node or the father node of the IAB node, or the resource indication of the father node to the IAB node, or the resource scheduling or transmission parameter setting of the IAB node or the father node;

or,

acquiring resource type information corresponding to a serving cell of the MT, wherein the resource type information is resource type configuration of a DU (dedicated channel) of a father node of the IAB node, or a resource type used when the father node of the IAB node schedules the serving cell of the MT, and processing conflict between the DU of the IAB node and the MT according to the acquired resource type information corresponding to the serving cell of the MT.

In a second aspect, a conflict processing apparatus is provided, including:

a first processing module, configured to determine a first operation of a DU and/or an MT of the IAB node when a conflict occurs between the DU and the MT; or, according to a preset conflict between the DU and the MT of the IAB node, limiting the resource configuration of the IAB node or a parent node of the IAB node, or a resource indication of the IAB node by the parent node, or a resource scheduling or transmission parameter setting of the IAB node or the parent node; or acquiring resource type information corresponding to a serving cell of the MT, where the resource type information is resource type configuration of a DU of a parent node of the IAB node, or a resource type that can be used when the parent node of the IAB node schedules the serving cell of the MT, and processing a conflict between the DU of the IAB node and the MT according to the acquired resource type information corresponding to the serving cell of the MT.

In a third aspect, a network-side device is provided, including: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the method of the first aspect.

In a fourth aspect, a readable storage medium is provided, on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the first aspect.

In a fifth aspect, a program product is provided, which is stored on a non-volatile storage medium, which program product is executable by at least one processor to implement the steps of the method according to the first aspect.

In a sixth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect.

In the embodiment of the present application, an IAB node (IAB node) and parent nodes (parent nodes) may coordinate with each other, so as to ensure the efficiency and reliability of DU and MT transmission. The IAB node and the parent nodes can be coordinated with each other, so that the efficiency and reliability of the transmission of a plurality of serving cells of the MT are ensured.

Drawings

FIG. 1 is a schematic diagram of an IAB system;

FIG. 2 is a block diagram of a CU-DU of the IAB system;

fig. 3 is a flowchart of a collision handling method of an IAB node in the embodiment of the present application;

fig. 4 is a schematic diagram illustrating a conflict handling between a DU cell and an MT cell in an embodiment of the present application;

fig. 5 is a schematic diagram illustrating a collision handling between MT cells in the embodiment of the present application;

fig. 6 is a schematic diagram of a collision processing apparatus of an IAB node in the embodiment of the present application;

fig. 7 is a schematic diagram of a network-side device in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In the specification and claims, "and" represents at least one of connected objects, and a character "/" generally indicates that a preceding and succeeding related object is in an "or" relationship.

It is noted that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (fdma), or the likeMultiple Access, FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation)^thGeneration, 6G) communication system.

I, IAB system

Referring to fig. 1, an Integrated Access Backhaul (IAB) system is illustrated. An IAB node includes a Distributed Unit (DU) function and a Mobile Termination (MT) function. By means of the MT, an access node (i.e., IAB node) can find an upstream access node (e.g., parent IAB node) and establish a wireless connection with the DU of the upstream access node, which is called a backhaul link. After an IAB node establishes a complete backhaul link, the IAB node opens its DU function, and the DU provides cell service, i.e., the DU can provide access service for the terminal. A self-return loop includes a home (donor) IAB node having a wired transport network directly connected thereto.

FIG. 2 is a diagram of a central-Distributed Unit (CU-DU) structure of an IAB system. In a self-backhauling loop, all the IAB node DUs are connected to one CU node, and the DU is configured by this one node through the F1-AP protocol. The CU configures the MT by using a Radio Resource Control (RRC) protocol. The Donor IAB node has no MT functionality.

The introduction of the IAB system is to solve the problem that the wired transmission network is not deployed in place when access points are densely deployed. I.e. the access point may rely on a wireless backhaul in the absence of a wired transmission network.

Duplex (duplexing) method for DU and MT

In order to realize resource Multiplexing of Frequency Division Multiplexing (FDM)/Space Division Multiplexing (SDM), the non-time Division Multiplexing (non-TDM) operation modes of DU and MT include the following:

(1) DU-Transmission (TX) and MT-TX; or, DU is configured as Downlink (DL), MT is configured as Uplink (UL); or, the DU performs DL transmission and the MT performs UL transmission.

(2) DU-Receive (RX) and MT-RX; or, DU is configured as UL, MT is configured as DL; or, the DU performs UL reception and the MT performs DL reception.

(3) DU-TX and MT-RX; or, the DU is configured as DL, and the MT is configured as DL; or, the DU performs DL transmission and the MT performs DL reception.

(4) DU-RX and MT-TX; or, the DU is configured as UL, and the MT is configured as UL; or, the DU performs UL reception and the MT performs UL transmission.

Thirdly, resource type configuration of IAB cell-specific signaling (cell-specific signaling):

the resource types of IAB DUs are classified into Hard (Hard), soft (soft) and unavailable (NA) types. On the Hard type resource, the IAB DU can perform transceiving operation, and the IAB node can ignore transceiving of all MTs. The resources occupied by cell-specific signaling transmission of IAB DU are regarded as Hard resources:

synchronization Signal Block (SSB) transmission resources of the DU, including Cell Defining SSB (CD-SSB) and non-CD-SSB;

(v) in case of Random Access Channel (RACH) configured for DU reception;

periodic Channel State Information Reference Signal (CSI-RS) transmission at the DU;

the planned resources for receiving Scheduling Requests (SR) in the DU.

Fourth, regarding soft resource type of IAB DU:

the resource types of IAB DUs are classified into Hard, soft and NA types. On Soft type resources, if the transceiving operation of the IAB DU does not affect the transceiving behavior of the MT, the IAB DU can use the Soft resources.

Fifthly, regarding half-duplex limitation of the terminal under the configuration of a plurality of service cells (multiple serving cells):

under the multiple serving cell configuration, if the terminal is limited by half duplex, the terminal behavior and the scheduling limit of the base station are regulated. Some are summarized below:

case 1: if UL/DL collision occurs between cells (cells), the channel transmission behavior of the terminal is defined as follows:

receiving by the SSB preferentially when a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a Physical Random Access Channel (PRACH), and a Sounding Reference Signal (SRS) collide with each other; the method comprises the steps that when a PRACH (Physical downlink control Channel, PDCCH), a Physical Downlink Shared Channel (PDSCH) and a Channel State Information Reference Signal (CSI-RS) receive conflict, the PRACH is preferentially sent; when UL channel transmission conflicts with PDSCH receiving of a cross slot (slot), the UL transmission is prioritized; and when the DL channel reception conflicts with the PUSCH crossing the slot, the DL reception is prioritized.

Case 2: if a serving cell is configured with a Control resource set (core) #0, the terminal does not expect the corresponding time domain position of the cell to be configured with a UL symbol (symbol).

Case 3: a reference serving cell (or reference cell) is defined, and the transmission/reception priority on the reference cell is higher. If the reference cell indicates UL/DL, the terminal does not expect the non-reference cell to indicate DL or UL at the corresponding time domain position; if the reference cell is configured as DL or DL reception is scheduled, the terminal does not expect the non-reference cell (non-reference cell) to have UL scheduling at the corresponding time domain position; if the reference cell is configured to be UL or the UL transmission is scheduled, the terminal does not expect the non-reference cell to have DL scheduling at the corresponding time domain position; if the reference cell is configured with the transmission of the PUCCH, PUSCH, PRACH and SRS or configured with UL symbol, the terminal cannot receive the configured PDCCH, PDSCH and CSI-RS at the corresponding time domain position by the non-reference cell; if the reference cell is configured with the receiving of the PDCCH, the PDSCH and the CSI-RS or configured as the DL symbol, the terminal cannot receive the PUCCH, the PUSCH, the PRACH and the SRS which are transmitted and configured by the non-reference cell at the corresponding time domain position; if the reference cell is configured with PUCCH, PUSCH, PRACH or SRS transmission or PDCCH, PDSCH, CSI-RS reception, the behavior of the UE at the non-reference cell at the corresponding time domain position is consistent with the behavior of the Flexible symbol (Flexible symbol).

Case 4: the terminal does not expect the first Downlink Control Information (DCI) to schedule the DL or UL in the first cell, and the second DCI schedules the UL or DL in the corresponding time domain position.

Case 5: if the reference cell and the non-reference cell are in different frequency bands (frequency bands), if the UL or DL is in different directions, the terminal is not required to receive the configured PDCCH, PDSCH, CSI-RS, and the terminal does not expect the configured PUCCH, PUSCH, PRACH, SRS in the corresponding time domain position; in particular, the terminal preferentially transmits UL transmissions dynamically scheduled on the non-reference cell even if the reference cell is configured as DL or configured with PDCCH, PDSCH, CSI-RS reception.

And sixthly, power sharing of the terminal under Dual-connection (DC) is performed.

If the terminal is in a dual connectivity state, its transmission power may be shared between a Master Cell Group (MCG) link and a Secondary Cell Group (SCG) link. The power sharing between MCG link and SCG link can be divided into semi-static and dynamic power sharing.

For semi-static power sharing, the sum of the maximum uplink transmission power configured by the MCG link and the SCG link is less than or equal to the total transmission power of the terminal. For a dual link (NN-DC) of a New Radio (NR), the maximum transmission power configured for MCG link and SCG link is only suitable for a time when MCG link and SCG link may have simultaneous transmission, for example, a time when UL symbol is present, and a time when UL symbol is present.

Seventhly, regarding initial access signaling:

the initial access by the terminal can be divided into four-step random access (4-step RACH) and two-step random access (2-step RACH). The signaling of 4-step RACH includes: message 1(MSG1), message 2(MSG2), message 3(MSG3), and message 4(MSG 4). The signaling for 2-step RACH includes message a (msga) and message b (msgb).

Herein, a terminal may also be referred to as a terminal Device or a User Equipment (UE), and the terminal may be a Mobile phone, an IAB MT, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, an ultra-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, and the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal.

The network-side device may be a Base station or a core network, where the Base station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable term in the field, as long as the same technical effect is achieved, the Base station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base station in the NR system is taken as an example, but a specific type of the Base station is not limited.

The method, the apparatus, the device, and the readable storage medium for handling collision of an IAB node according to the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 3, an embodiment of the present application provides a collision handling method, which is executed by an IAB node, and includes: step 301 or step 302 or step 303 and step 304.

Step 301: determining a first operation of the DU and/or MT in case of a collision between the DU and MT of the IAB node;

step 302: according to the preset conflict between DU and MT of the IAB node, limiting the resource configuration of the IAB node or the father node, or limiting the resource indication of the father node to the IAB node, or limiting the resource scheduling or transmission parameter setting of the IAB node/the father node;

step 303: acquiring resource type information corresponding to a serving cell (serving cell) of an MT, wherein the resource type information is resource type configuration of a DU (data channel) of a father node of an IAB (inter access node) node, or a resource type which can be used when the father node of the IAB node schedules the serving cell of the MT.

Step 304: and processing the conflict between the DU of the IAB node and the MT according to the acquired resource type information corresponding to the service cell of the MT.

In an embodiment of the present application, the determining the first operation of the DU and/or MT includes one or more of the following:

(1) determining the receiving behavior of the DU and/or MT according to the priority relation of the DU and MT;

(2) determining the sending behavior of the DU and/or MT according to the priority relation of the DU and MT;

(3) and determining the sending parameters of the DU and/or MT according to the priority relation of the DU and MT.

In the embodiment of the present application, the conflict between the DU and the MT includes one or more of the following:

(1) the IAB node receives a plurality of conflicting resource type indications;

(2) a DU cell and an MT cell of the IAB node do not support full duplex, and the DU cell and the MT cell indicate/schedule full duplex at a specific time;

(3) a DU cell and an MT cell are indicated or scheduled to be sent simultaneously at a specific time, and the sending of the DU and the MT cannot meet the requirement of sending power simultaneously;

(4) the DU cell and the MT cell indicate/schedule to receive simultaneously at a specific time, but interference between the DU cell and the MT cell may cause reception failure, for example, interference between the DU cell and the MT cell is greater than a preset threshold;

(5) a DU cell and an MT cell indicate/schedule to transmit in the DU cell, receive in the MT cell, or receive in the DU cell and transmit in the MT cell at a specific time, but interference between the DU cell and the MT cell may cause reception failure, for example, interference between the DU cell and the MT cell is greater than a preset threshold;

(6) the DU cell and the MT cell indicate/are scheduled to receive simultaneously at a certain time instant, the PSD between said DU and MT is not balanced.

In an embodiment of the present application, the method further includes:

sending a conflict (e.g., conflict type, conflict time, etc.) between the DU and the MT of the IAB node, or sending a conflict (e.g., conflict type, conflict time, etc.) between cells of the MT of the IAB node, directly or through a CU to a parent node and/or a child node of the IAB node.

In an embodiment of the present application, the method further includes:

acquiring corresponding resource type information on an MT cell, wherein the resource type information is resource type configuration of a father node DU of the IAB node, or a resource type which can be used when the father node of the IAB node schedules the MT serving cell (serving cell).

In an embodiment of the present application, the priority relationship between the DU and the MT includes one or more of the following items:

(1) priority relationship between DU transmission and MT transmission;

(2) priority relationship between DU transmission and MT reception;

(3) the priority relationship between DU reception and MT transmission;

(4) priority relationship between DU reception and MT reception.

In an embodiment of the present application, the method further includes:

determining a priority relationship between the DU transmissions and the MT transmissions based on one or more of the following;

(1) information sent by the DU and/or MT;

(2) number of DU and/or MT transmissions;

(3) whether the DU and/or MT is transmitted through a reference cell;

(4) channels transmitted by the DUs and/or MTs;

(5) a priority of a backhaul radio link layer control channel (BH RLC channel);

(6) the physical channel priority indicated by the network side.

In the embodiment of the present application, determining the priority relationship between DU transmission and MT transmission according to information sent by the DU and/or the MT includes:

determining that the first information transmission priority of the DU is higher than the priority of the MT transmission;

or,

determining that the DU transmits the first information with higher priority than the MT transmits the second information;

wherein the first information comprises one or more of: synchronization Signal Block (SSB), message 2(MSG2), message 4(MSG4), message b (msgb), the second information including other information than one or more of Physical Random Access Channel (PRACH), MSG2, message a (msga).

determining that the priority of the MT for sending the third information is higher than the priority of the DU sending;

or,

determining that the priority of the MT for sending the third information is higher than the priority of the DU for sending the fourth information;

wherein the third information comprises one or more of: PRACH, message 3(MSG3), MSGA, the fourth information comprising further information besides one or more of SSB, MSG2, MSGB.

determining that the DU cell-specific signaling has a higher priority than the MT transmits fifth information, the fifth information including information other than one or more of PRACH, MSG3, MSGA;

or,

it is determined that the priority for the MT to transmit is higher than the priority for the DU to transmit other information than the DU cell-specific signal.

In the embodiment of the present application, determining the priority relationship between DU transmission and MT transmission according to the number of times of DU and/or MT transmission includes:

determining that the priority of the MT transmission is higher than the priority of a Physical Downlink Shared Channel (PDSCH) of a DU, wherein the PDSCH is scheduled to be transmitted for multiple times on multiple resources, and/or the DU PDSCH still has transmission opportunities after the MT transmission;

or,

determining that a priority of the DU transmission is higher than a priority of a Physical Uplink Shared Channel (PUSCH) of the MT, wherein the PUSCH is scheduled to be transmitted on a plurality of resources for a plurality of times, and/or the MT PUSCH still has a transmission opportunity after the DU transmission.

In the embodiment of the present application, determining the priority relationship between the DU transmission and the MT transmission according to whether the DU and/or the MT transmits through the reference cell includes:

determining that a priority of transmission on a reference cell of the DU is higher than a priority of transmission on a non-reference cell (non-reference cell) of the MT;

or,

it is determined that the priority of transmission on the reference cell of the TM is higher than the priority of transmission on the non-reference cell of the DU.

In this embodiment, determining the priority relationship between the DU transmission and the MT transmission according to the channel for the DU transmission and/or the channel for the MT transmission includes:

determining that the priority for DU specific Physical Downlink Control Channel (PDCCH) transmission is higher than the priority for MT PUSCH transmission, for example, the specific PDCCH includes: a PDCCH controlling a resource set #0(CORESET #0), a PDCCH carrying some downlink control information formats (DCI formats) (e.g., fallback DCI 0_0/1_0, common DCI 2_ x);

or,

it is determined that a priority of MT specific Physical Uplink Control Channel (PUCCH) transmission is higher than that of DU PDSCH transmission, for example, a specific PUCCH includes some PUCCH formats, and PUCCH (e.g., Scheduling Request (SR)) carrying some Uplink Control Information (UCI).

In this embodiment of the present application, determining a priority relationship between DU transmission and MT transmission according to a priority of a BH RLC channel includes:

when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is higher than that of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the priority sent by the DU PDCCH or the PDSCH is higher than that sent by the MT PUCCH or PUSCH;

or,

when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is lower than or equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the priority of MT PUCCH or PUSCH transmission is higher than the priority of DU PDCCH or PDSCH transmission;

or,

and when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining the priority relation between DU transmission and MT transmission according to protocol agreement or an IAB node.

In this embodiment of the present application, determining a priority relationship between DU transmission and MT transmission according to a physical channel priority indicated by a network side includes:

based on the priority indicated by PDCCH or Radio Resource Control (RRC), the priority relationship between DU PDSCH transmission and MT PUSCH transmission is determined.

In this embodiment, the usage scenario of the priority relationship between the DU transmission and the MT transmission includes any one of the following:

(1) comparing a DU Primary serving Cell (Pcell) with a MT Pcell/Special Cell (Special Cell, sPCell)/Primary serving Cell (PScell) of a secondary Cell group;

(2) comparing DU Pcell with MT auxiliary Cell (Scell);

(3) comparing DU Scell with MT Pcell/sCell/PSCell;

(4) alignment between DU Scell and MT Scell.

In an embodiment of the present application, the method further includes: determining a priority relationship between the DU transmission and the MT reception according to one or more of the following items;

(1) information transmitted by the DU and/or received by the MT;

(2) number of DU transmissions and/or MT receptions;

(3) whether the DU is sent through the reference cell and/or whether the MT is received through the reference cell;

(4) a channel for DU transmission and/or a channel for MT reception;

(5) the physical channel priority indicated by the network side.

In this embodiment of the present application, the determining a priority relationship between DU transmission and MT reception according to information of DU transmission and/or MT reception includes:

determining that the DU has higher priority for transmitting the sixth information than the MT receives;

or,

determining that the DU has higher priority for transmitting the sixth information than the MT receives the seventh information;

wherein the sixth information comprises one or more of: SSB, MSG2, MSG4, MSGB, the seventh information comprising other information than one or more of SSB, MSG2, MSG4, MSGB.

determining that the priority of receiving the eighth information by the MT is higher than the priority of sending the DU;

or,

determining that the priority of receiving the eighth information by the MT is higher than the priority of sending the ninth information by the DU;

wherein the eighth information comprises one or more of: SSB, MSG2, MSG4, MSGB, the ninth information comprising other information than one or more of SSB, MSG2, MSG4, MSGB.

In this embodiment, the determining the priority relationship between DU transmission and MT reception according to the information sent by the DU and/or received by the MT includes:

it is determined that the DU cell-specific signal transmission has a higher priority than the MT receives tenth information including other information than one or more of SSB, MSG2, MSG4, MSGB.

Or,

it is determined that the reception priority of the MT is higher than the priority of the DU for transmitting eleventh information including information other than a cell-specific (cell-specific) signal of the DU.

In this embodiment of the present application, the determining a priority relationship between DU transmission and MT reception according to the number of DU transmission and/or MT reception includes:

determining that MT reception is higher priority than DU PDSCH, wherein PDSCH is scheduled for multiple transmissions on multiple resources

It is determined that the priority of DU transmission is higher than the priority of MT PDSCH reception, where PDSCH is scheduled for multiple transmissions on multiple resources.

In an embodiment of the present application, the determining a priority relationship between DU transmission and MT reception according to whether the DU is transmitted through the reference cell and/or whether the MT is received through the reference cell includes:

determining that the priority transmitted on the reference cell of the DU is higher than the priority received on the non-reference cell of the MT;

or,

it is determined that the priority received on the reference cell of the TM is higher than the priority transmitted on the non-reference cell of the DU.

In this embodiment of the present application, the determining a priority relationship between DU transmission and MT reception by the channel for DU transmission and/or the channel for MT reception includes:

determining that the priority of DU specific PDCCH transmission is higher than the priority of MT PDSCH reception, for example, the specific PDCCH includes: PDCCH of core set #0, PDCCH carrying some DCI formats (e.g. fallback DCI 0_0/1_0, common DCI 2_ x);

or,

determining that the MT specific PDCCH is received with higher priority than the DU PDSCH transmission, for example, the specific PDCCH includes: the PDCCH of core set #0 carries PDCCH of some DCI formats (e.g. fallback DCI 0_0/1_0, common DCI 2_ x).

determining a priority relationship between the DU PDSCH and the MT PDSCH based on a priority indicated by the PDCCH or the RRC.

In an embodiment of the present application, the usage scenario of the priority between DU transmission and MT reception includes any one of the following:

(1) comparing DU Pcell with MT Pcell/sPCell/PScell;

(2) comparing DU Pcell with MT Scell;

(3) comparing DU Scell with MT Pcell/sCell/PScell;

(4) comparison between DU Scell and MT Scell.

In an embodiment of the present application, the method further includes: determining a priority relationship between the DU reception and the MT transmission according to one or more of the following items;

(1) information received by the DU and/or transmitted by the MT;

(2) the number of DU receptions and/or MT transmissions;

(3) whether the DU is received through the reference cell and/or whether the MT is transmitted through the reference cell;

(4) a channel for DU reception and/or a channel for MT transmission;

(5) priority of BH RLC channel;

(6) the physical channel priority indicated by the network side.

In this embodiment of the present application, the determining a priority relationship between DU reception and MT transmission according to information of DU reception and/or MT transmission includes:

determining that the DU receives the twelfth information with higher priority than the MT sends the twelfth information;

or,

determining that the DU has a higher priority to receive the twelfth information than the MT has to transmit the thirteenth information;

wherein the twelfth information comprises one or more of: PRACH, MSG3, MSGA, the thirteenth information including other information than one or more of PRACH, MSG3, MSGA.

determining that the priority of the MT for sending the fourteenth information is higher than the priority of DU reception;

or,

determining that the priority of the MT for sending the fourteenth information is higher than the priority of the DU for receiving the fifteenth information;

wherein the fourteenth information includes one or more of: PRACH, MSG3, MSGA, the fifteenth information including other information besides one or more of PRACH, MSG3, MSGA.

In this embodiment of the present application, the determining a priority relationship between DU reception and MT transmission according to the number of times of DU reception and/or MT transmission includes:

determining that the priority of MT transmission is higher than the priority of DU PUSCH reception, wherein PUSCH is scheduled for multiple transmissions on multiple resources;

or,

determining that the DU reception is prioritized over the MT PUSCH transmission, wherein the PUSCH is scheduled for multiple transmissions on multiple resources.

In an embodiment of the present application, the determining a priority relationship between DU reception and MT transmission according to whether the DU is received by the reference cell and/or whether the MT is transmitted by the reference cell includes:

determining that the priority received on the reference cell of the DU is higher than the priority transmitted on the non-reference cell of the MT;

or,

it is determined that the priority transmitted on the reference cell of the TM is higher than the priority received on the non-reference cell of the DU.

In this embodiment of the present application, the determining a priority relationship between DU reception and MT transmission according to a channel for DU reception and/or a channel for MT transmission includes:

determining that the DU specific PUCCH is received with higher priority than the MT PUSCH, such as that the specific PUCCH includes certain PUCCH formats, PUCCH carrying certain UCI (e.g. SR);

or,

it is determined that MT specific PUCCH transmission has priority over DU PUSCH reception, such as specific PUCCH including certain PUCCH formats, PUCCH carrying certain UCI (e.g. SR).

In this embodiment of the present application, the determining a priority relationship between DU reception and MT transmission according to a priority of a BH RLC channel includes:

when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is higher than that of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the receiving priority of the DU PUCCH or PUSCH is higher than the sending priority of the MT PUCCH or PUSCH;

or,

when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is lower than or equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the transmission priority of the MT PUCCH or PUSCH is higher than the receiving priority of the DU PUCCH or PUSCH;

or,

and when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining the priority relation between DU reception and MT transmission according to protocol agreement or an IAB node.

In this embodiment of the present application, the determining, by the physical channel priority indicated by the network side, a priority relationship between DU reception and MT transmission includes:

based on the priority indicated by PDCCH or RRC, the priority relation between DU PUSCH reception and MT PUSCH transmission is determined.

In the embodiment of the present application, the usage scenario of priority relationship between DU reception and MT transmission includes any one of the following:

(1) comparing DU Pcell with MT Pcell/sPCell/PScell;

(2) comparing DU Pcell with MT Scell;

(3) comparing DU Scell with MT Pcell/sCell/PSCell;

(4) comparison between DU Scell and MT Scell.

In an embodiment of the present application, the method further includes: determining a priority relationship between the DU reception and the MT reception according to one or more of the following items;

(1) information received by the DU and/or MT;

(2) number of DU reception and/or MT reception;

(3) whether the DU is received through the reference cell and/or whether the MT is received through the reference cell;

(4) a DU received channel and/or an MT received channel;

(5) the physical channel priority indicated by the network side.

In the embodiment of the present application, determining the priority relationship between DU reception and MT reception according to the information received by DU reception and/or MT reception includes:

determining that the DU receives the sixteenth information with higher priority than the MT receives;

or,

determining that the DU has a higher priority to receive the sixteenth information than the MT has to receive the seventeenth information;

wherein the sixteenth information includes one or more of: PRACH, MSG3, MSGA, the seventeenth information comprising further information besides one or more of SSB, MSG2, MSG4, MSGB.

determining that the priority of receiving the eighteenth information by the MT is higher than the priority of receiving the DU;

or,

determining that the MT receives the eighteenth information with higher priority than the DU receives the nineteenth information;

wherein the eighteenth information comprises one or more of: SSB, MSG2, MSG4, MSGB, the nineteenth information including other information besides one or more of PRACH, MSG3, MSGA.

In the embodiment of the present application, determining the priority relationship between DU reception and MT reception according to the number of DU reception and/or MT reception includes:

determining that MT reception is higher priority than DU PUSCH reception, wherein PUSCH is scheduled for multiple transmissions on multiple resources;

or,

determining that the priority of DU reception is higher than the priority of MT PDSCH reception, wherein the PDSCH is scheduled for multiple transmissions on multiple resources.

In the embodiment of the present application, determining the priority relationship between DU reception and MT reception according to whether the DU is received through the reference cell and/or whether the MT is received through the reference cell includes:

determining that the priority received on the reference cell of the DU is higher than the priority received on the non-reference cell of the MT;

or,

it is determined that the priority received on the reference cell of the TM is higher than the priority received on the non-reference cell of the DU.

In the embodiment of the present application, determining a priority relationship between DU reception and MT reception according to a channel received by the DU and/or a channel received by the MT includes:

determining that the priority of DU specific PUCCH reception is higher than that of MT PDSCH reception, such as that the specific PUCCH includes certain PUCCH formats, PUCCH carrying certain UCI (e.g. SR);

or,

it is determined that MT specific PDCCH reception has priority over DU PUSCH reception, such as specific PUCCH including certain PUCCH formats, PUCCH carrying certain UCI (e.g. SR).

In this embodiment of the present application, determining a priority relationship between DU reception and MT reception according to a physical channel priority indicated by a network side includes:

based on the priority indicated by PDCCH or RRC, the priority relationship between DU PUSCH reception and MT PDSCH reception is determined.

In an embodiment of the present application, a usage scenario of a priority relationship between DU reception and MT reception includes any one of the following:

(1) comparing DU Pcell with MT Pcell/sPCell/PScell;

(2) comparing DU Pcell with MT Scell;

(3) comparing DU Scell with MT Pcell/sCell/PSCell;

(4) comparison between DU Scell and MT Scell.

In an embodiment of the present application, the method further includes:

if a specific symbol of a serving cell of the MT of the IAB node is configured as an uplink symbol or a downlink symbol, and the corresponding resource type information on the serving cell indicates that the specific symbol is unavailable for the MT, ignoring the influence of the serving cell on the behavior of the MT or the scheduling of the MT on the specific symbol.

In an embodiment of the present application, the behavior of the MT includes: if the MT of the IAB node is configured with multiple serving cells and the receiving and sending among multiple cells of the MT are limited by double semi-worker, the behavior of the MT comprises the receiving and/or sending behaviors of the MT on multiple cells; alternatively, scheduling the MT includes: scheduling of the MT by the scheduling node.

In an embodiment of the present application, the behavior of the MT includes: if the MT is configured with an MCG and an SCG, and a specific symbol in a serving cell of the MCG and a specific symbol in a serving cell of the SCG are simultaneously configured as an uplink symbol, the behavior of the MT includes a transmission behavior of the MT on a plurality of cell groups, or the scheduling of the MT includes: scheduling of MTs by the scheduling node over multiple cell groups.

Embodiments of the present application are described below with reference to scheme one and scheme two.

The first scheme is as follows: conflict handling between DU cell and MT cell

Referring to fig. 4, three collision scenarios are illustrated, namely, a collision between a DU cell and a co-channel (co-channel) MT cell (DU cell #1 and MT cell #1), a collision between a DU cell and a non-co-channel (non-co-channel) MT cell (DU cell #1 and MT cell #2, and DU cell #1 and MT cell # 3).

When resource indication/scheduling conflict occurs between the IAB DU and the MT, the following measures are taken.

The conflict condition includes but is not limited to at least one of the following:

(1) the DU cell and the MT cell support a TDM resource multiplexing mode, but an IAB node receives a plurality of conflicting resource type indications;

for example, in a certain symbol, one indication/scheduling DU performs transceiving operation, and another indication/scheduling DU cannot perform transceiving operation.

(2) The DU cell and the MT cell support a non-TDM resource multiplexing mode, but are limited by half duplex (half duplex), and the DU cell and the MT cell indicate/schedule full duplex at a certain time, namely, the DU cell and the MT serving cell conflict in a TDD direction;

for example, on a certain symbol, one indication/schedule is UL symbol and the other indication/schedule is DL symbol.

(3) Indicating/scheduling the DU cell and the MT cell to be simultaneously transmitted at a certain time, wherein when the DU cell and the MT share power, the transmission of the DU/MT cannot simultaneously meet the transmission power requirement;

for example, the Energy Per Resource Element (EPRE) requirement of the SSB, CSI-RS or PDCCH in CORESET #0, the UL transmit Power requirement determined by UL Power control and scheduling, the Power Spectral Density (PSD) balance requirement between the DU and MT, and so on.

The PSD balance can be represented by an EPRE difference value, and if the PSD balance is greater than a certain difference value, the PSD is considered to be unbalanced.

(4) The DU cell and the MT cell indicate/schedule to receive simultaneously or transmit and receive simultaneously at a certain time, but if the interference (namely energy interference) of one party to the other party is larger than a threshold value;

the energy Interference may be represented by Reference Signal Received Power (RSRP)/Received Signal Strength Indication (RSSI)/Reference Signal Received Quality (RSRQ)/Signal to NOISE RATIO (Signal NOISE RATIO, SNR)/Signal to Interference plus NOISE RATIO (SINR), and the like.

(5) Indicating/scheduling that the DU cell and the MT cell receive simultaneously at a certain time, but the PSD between the DU cell and the MT cell is unbalanced;

The measures are as follows:

(1) the IAB node needs to power scale (power scaling) the low priority transmission or directly drop the low priority transmission/reception according to the priority principle of the DU and MT.

(2) The transmission/reception of signals or channels is limited, and the collision of the transmission and reception of DU and MT is avoided. Especially against conflicts mentioned in the priority principle below.

For example, limiting the resource configuration of a CU, an IAB node or parent node does not expect the existence of a configuration that causes a conflict;

or, limiting the dynamic resource indication of parent node, and the IAB node does not expect the existence of resource dynamic causing conflict;

alternatively, the scheduling/transmission parameter settings of the IAB node or parent node are restricted, and the IAB node does not expect the existence of the scheduling/parameter settings causing the collision.

The priority principles in the measures include:

priority principles between DU transmission and MT transmission, see embodiment one;

see embodiment two for the priority principle between DU transmission and MT reception;

see embodiment three for the priority principle between DU reception and MT transmission;

see embodiment four for the priority principle between DU reception and MT reception.

In addition, the IAB node may obtain resource type information (e.g., Hard, Soft, or NA) corresponding to the MT serving cell, where the corresponding resource type information may be resource type configuration of a parent node DU, or a resource type scheduled to be used when the parent node schedules the MT serving cell.

The advantages are that: according to the prior art, the Parent node can know the resource type or TDD configuration of the IAB DU cell, and the IAB node can also know the TDD of the MT cell scheduled by the Parent node. By combining the method, the IAB DU and the parent node can perform scheduling/configuration coordination, and coordinate the transmission/reception of signals/channels, so as to alleviate the occurrence of collisions.

Scheme two is as follows: the process of collision between MT cells, fig. 5 illustrates two collision scenarios, collision between cells of the same Cell Group (CG), and collision between cells of different CGs.

The MT of the IAB node obtains resource type information (e.g., Hard, Soft, or NA) corresponding to the MT serving cell, where the corresponding resource type information may be a resource type configuration of a parent node DU, or a resource type scheduled to be used when the parent node schedules the MT serving cell.

If a serving cell of the IAB MT is configured as UL symbol or DL symbol, but the corresponding resource type information on the serving cell indicates that the MT cannot use the symbol, the IAB MT ignores the influence of the serving cell on its behavior on the symbol. The rule applies to at least one of the following cases:

case 1: the IAB MT is configured with a multiple serving cell, the transceiving is limited by a half duplex, and the transceiving behavior of the MT/the behavior of a limited scheduling node is determined.

Case 2: the IAB MT is configured with an MCG and an SCG, and a symbol in a serving cell of the MCG and a serving cell of the SCG are simultaneously configured as an UL symbol to perform a semi-static power sharing action.

The following describes a specific embodiment of the present application with reference to examples one to five.

The first embodiment is as follows: priority principle of DU TX and MT TX:

principle 1: ensuring transmission of system messages and RACH messages, comprising: (1) and/or (2):

(1) the priority sent by the DU SSB is the highest priority; or the priority of the DU SSB transmission is higher than that of the MT uplink transmission, but lower than one or more of the following uplink transmissions: PRACH, Msg3, MSGA;

the above-described DU SSB transmission may be replaced by the following transmission: msg2, Msg4, MSGB.

Alternatively, Cell Defining SSB (CD-SSB) and non-Cell Defining SSB (non-CD-SSB) may configure/define different priorities, for example: (a) or (b).

(a) The CD-SSB is at the highest priority, and the priority is higher than one or more of PRACH, Msg3 and MSGA sent by the MT;

(b) the Non-CD-SSB has lower priority than one or more of PRACH, Msg3, MSGA and MSGB which are sent by MT;

(2) the priority of MT PRACH (or MSGA or Msg3) transmission is the highest priority; or the transmission priority is higher than the priority of the downlink transmission of the DU, but lower than at least one of the following downlink transmissions: SSB, Msg2, MSGB. The usage scenario of the rule may be: (a) (ii), (b) or (c).

(a) When the MT is connected with the current parent IAB node to generate RLF and reestablish the connection with the selected parent IAB node; or,

(b) when switching to a new parent IAB node, establishing connection with the new IAB node; or,

(c) when the MT fails to connect with the current parent IAB node to transmit the beam (beam failure), a beam recovery procedure is performed.

Principle 2: the priority of one transmission is higher than the priority of multiple transmissions, including (1) and/or (2).

(1) The priority of MT UL transmission is higher than that of DU PDSCH, if PDSCH is scheduled on a plurality of resources for a plurality of transmission opportunities, and/or DU PDSCH still transmits after MT UL transmission;

(2) the priority of DU DL transmission is higher than that of MT PUSCH, if PUSCH is scheduled on a plurality of resources for a plurality of transmission opportunities, and/or MT PUSCH still transmits after DU DL transmission;

principle 3: setting a reference cell for the DU and/or the MT, where a priority of a transmission in the reference cell is higher than a priority of a transmission in the non-reference cell, and at least one of the following scenarios is included:

(1) comparing priorities between the MT reference cell and the DU cell;

(2) comparing the priority between the MT reference cell and the DU non-reference cell;

(3) comparing the priority between the DU reference cell and the MT cell;

(4) priority comparison between DU reference cell and MT non-reference cell.

It will be appreciated that the priority rule may be valid only for a portion of the channels/signaling, for example: PUSCH/PUCCH/PRACH/SRS for MT, or PDCCH/PDSCH/CSI-RS for DU.

Principle 4: and ensuring the transmission of the cell-specific signal of the DU comprises (1) and/or (2).

(1) The priority of cell-specific signaling of DU is higher priority;

for example, the priority of DU CSI-RS (or periodic CSI-RS) transmission is higher than that of MT uplink transmission, but lower than at least one of the following uplink transmissions: PRACH, Msg3, MSGA.

(2) The transmission priority of the MT is higher than that of the DU transmission, but lower than that of the DU cell-specific signal, such as DU SSB/CSI-RS (or periodic CSI-RS).

In the embodiment of the application, on one hand, management of the resources and the like of the DU cell is ensured; on the other hand, the operation of the MT and the parent node is simplified.

Principle 5: the priority of the control channel is higher than that of the data channel to guarantee the performance of the control channel.

(1) DU PDCCH (/ certain specific PDCCHs) transmission has higher priority than MT PUSCH transmission, and the specific PDCCHs include: PDCCH of core set #0, PDCCH carrying some DCI formats (e.g. fallback DCI 0_0/1_0, common DCI 2_ x);

(2) MT PUCCH (/ certain PUCCH specific including certain PUCCH formats, PUCCH (e.g. SR) carrying certain UCI) transmissions have higher priority than DU PDSCH transmissions.

Principle 6: determining the priority relation between DU PDCCH/PDSCH and MT PUCCH/PUSCH based on the priority comparison of BH RLC channel;

(1) when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is higher than that of the BH RLC channel with the highest priority borne by the MT PUSCH, the DU PDSCH takes precedence; otherwise, MT PUSCH takes precedence;

(2) when the priority of the BH RLC channel of the highest priority carried by the DU PDSCH is equal to the priority of the BH RLC channel of the highest priority carried by the MT PUSCH, the IAB node may determine the priority relationship itself or define one priority.

Principle 7: determining a Priority relation between a DU PDSCH and an MT PUSCH based on a Priority (Priority index) indicated by PDCCH/RRC, wherein when the Priority corresponding to the MT PUSCH is indicated as 1/high/URLLC and the Priority corresponding to the DU PDSCH is indicated as 0/low/eMBB, the Priority of the MT PUSCH is high; otherwise, DU PDSCH takes precedence.

Scenarios that may be used include:

(1) comparing DU Pcell with MT Pcell/sPCell/PScell;

(2) comparing DU Pcell with MT Scell;

(3) comparing DU Scell with MT Pcell/sCell/PSCell;

(4) comparison between DU Scell and MT Scell.

Example two: priority principle of DU TX and MT RX:

principle 1: ensuring transmission of system messages and RACH messages

(1) The priority sent by the DU SSB is the highest priority; or the priority of the DU SSB transmission is higher than that of the MT downlink reception, but lower than at least one of the following downlink reception: SSB, Msg2, Msg4, MSGB.

It is understood that the above-described DU SSB transmission may be replaced by the following transmission: msg2, Msg4, MSGB.

(2) The priority of the MT SSB reception is the highest priority; or the MT SSB has higher priority of reception than the downlink transmission of the DU, but lower priority than at least one of the following downlink transmissions: SSB, Msg2, Msg4, MSGB.

It will be appreciated that the above-described MT SSB reception may be replaced by the following: msg2, Msg4, MSGB.

The usage scenario of the rule is the same as that of embodiment one.

Principle 2: priority of one transmission is higher than priority of multiple transmissions

(1) MT DL reception has priority over DU PDSCH if PDSCH is scheduled for multiple transmissions on multiple resources

(2) DU DL transmission has priority over MT PDSCH reception if PDSCH is scheduled for multiple transmissions on multiple resources

Principle 3: setting a reference cell for the DU and/or the MT, where a transmission in the reference cell has a higher priority than a transmission in the non-reference cell, and at least one of the following scenarios is included:

(1) comparing the priorities between the MT reference cell and the DU cell;

(3) comparing the priority between the DU reference cell and the MT cell;

(4) priority comparison between DU reference cell and MT non-reference cell.

Alternatively, the priority rule may be valid only for partial channels/signaling, for example: PDCCH/PDSCH/CSI-RS of MT, or PDCCH/PDSCH/CSI-RS of DU.

Principle 4: ensuring cell-specific signaling of DUs

(1) The priority of cell-specific signaling of DUs is higher

Wherein, the priority of DU CSI-RS (or periodic CSI-RS) transmission is higher than the priority of MT downlink reception, but lower than at least one of the following uplink transmission: SSB, Msg2, Msg4, MSGB.

(2) The reception priority of the MT is higher than that of the DU transmission, but lower than that of the DU cell-specific signal transmission, such as DU SSB/CSI-RS (or periodic CSI-RS).

(1) The priority of DU PDCCH (/ certain specific PDCCH) transmission is higher than the priority of MT PDSCH reception, and the specific PDCCH includes: PDCCH of CORESET #0, PDCCH carrying some DCI formats (e.g. fallback DCI 0_0/1_0, common DCI 2_ x)

(2) MT PDCCH (/ some specific PUCCH) reception is higher priority than DU PDSCH transmission, and specific PDCCHs include: PDCCH of CORESET #0, PDCCH carrying some DCI formats (e.g. fallback DCI 0_0/1_0, common DCI 2_ x)

Principle 6: determining a Priority relation between the DU PDSCH and the MT PDSCH based on a Priority (Priority index) indicated by PDCCH/RRC, wherein when the Priority indication corresponding to the MT PDSCH is 1/high/URLLC and the Priority indication corresponding to the DU PDSCH is 0/low/eMBB, the Priority of the MT PDSCH is high; otherwise, DU PDSCH takes precedence.

Scenarios in which the priority principle may be used include:

(1) comparing DU Pcell with MT Pcell/sCell/PSCell;

(2) comparing DU Pcell with MT Scell;

(3) comparing DU Scell with MT Pcell/sCell/PSCell;

(4) comparison between DU Scell and MT Scell.

Example three: priority principle of DU RX and MT TX:

principle 1: transmission of system messages and RACH messages is guaranteed.

(1) The priority of DU PRACH reception is the highest priority; or the priority of DU PRACH reception is higher than that of MT uplink transmission, but lower than at least one of the following uplink transmission: PRACH, Msg3, MSGA.

Wherein, the DU PRACH reception may be replaced by the following reception: msg3, MSGA.

(2) The priority of MT PRACH transmission is the highest priority; or the priority of MT PRACH transmission is higher than that of DU uplink reception, but is lower than at least one of the following uplink reception: PRACH, Msg3, MSGA.

Wherein, the MT PRACH transmission may be replaced by the following transmission: msg3, MSGA.

It can be understood that the usage scenario of the rule is the same as that of embodiment one.

Principle 2: the priority of one transmission is higher than the priority of multiple transmissions.

(1) The priority of MT UL transmission is higher than the priority of DU PUSCH reception if PUSCH is scheduled for multiple transmissions on multiple resources;

(2) the priority of DU UL reception is higher than that of MT PUSCH transmission if PUSCH is scheduled for multiple transmissions on multiple resources;

principle 3: setting a reference cell for the DU and/or MT, wherein the priority of transmission on the reference cell is higher than that of transmission on the non-reference cell, and the setting at least comprises the following scenes:

(1) comparing the priorities between the MT reference cell and the DU cell;

(3) comparing the priority between the DU reference cell and the MT cell;

(4) priority comparison between DU reference cell and MT non-reference cell.

Wherein the priority rule may be valid only for partial channels/signal transmissions, such as: PUSCH/PUCCH/PRACH/SRS for MT, or PDCCH/PDSCH/CSI-RS for DU

Principle 4: the priority of the control channel is higher than that of the data channel to guarantee the performance of the control channel.

(1) DU PUCCH (/ certain specific PDCCH) reception is higher priority than MT PUSCH transmission, the specific PUCCH including certain PUCCH formats, PUCCH carrying certain UCI (e.g. SR);

(2) MT PUCCH (/ certain specific PUCCH) transmission has higher priority than DU PUSCH reception, and the specific PUCCH includes certain PUCCH formats, PUCCH (e.g. SR) carrying certain UCI.

Principle 5: determining the priority relation between DU PUCCH/PUSCH and MT PUCCH/PUSCH based on the priority ratio of BH RLC channel;

(1) when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is higher than that of the BH RLC channel with the highest priority borne by the MT PUSCH, the DU PUSCH takes precedence; otherwise, MT PUSCH takes precedence;

(2) when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, the IAB node can determine the priority relationship or define one priority by itself.

Principle 6: determining a Priority relation between a DU PUSCH and an MT PUSCH based on a Priority (Priority index) indicated by PDCCH/RRC, wherein the Priority of the MT PUSCH is high when the Priority indication corresponding to the MT PUSCH is 1/high/URLLC and the Priority indication corresponding to the DU PUSCH is 0/low/eMBB; otherwise, DU PUSCH takes precedence.

Scenarios in which the priority principle may be used include:

(1) comparison between DU Pcell and MT Pcell/sCell/PSCell

(2) Comparison between DU Pcell and MT Scell

(3) Comparison between DU Scell and MT Pcell/sCell/PSCell

(4) Contrast between DU Scell and MT Scell

Example four: priority principle of DU RX and MT RX:

principle 1: ensuring transmission of system messages and RACH messages

(1) The priority of DU PRACH reception is the highest priority; or the priority of the DU PRACH reception is higher than that of the MT downlink reception, but lower than at least one of the following downlink reception: SSB, Msg2, Msg4, MSGB.

(2) The priority of the MT SSB reception is the highest priority; or the MT SSB has higher priority of receiving than the DU uplink receiving but lower priority than at least one of the following uplink receiving: msg3, MSGA.

Wherein, the MT SSB reception may be replaced by the following reception: msg2, Msg4, MSGB.

(1) MT DL reception has priority over DU PUSCH reception if PUSCH is scheduled for multiple transmissions on multiple resources

(2) The priority of DU UL reception is higher than the priority of MT PDSCH reception if PDSCH is scheduled for multiple transmissions on multiple resources

(1) priority comparison between MT reference cell and DU cell

(2) Priority comparison between MT reference cell and DU non-reference cell

(3) Priority comparison between DU reference cell and MT cell

(4) Priority comparison between DU reference cell and MT non-reference cell

The priority rule may be valid only for partial channels/signaling, for example: PUSCH/PUCCH/PRACH/SRS for MT, or PDCCH/PDSCH/CSI-RS for DU

Principle 4: the priority of the control channel is higher than that of the data channel so as to ensure the performance of the control channel;

(1) the priority of DU PUCCH (/ certain specific PDCCH) transmission is higher than the priority of MT PDSCH reception, and the specific PUCCH includes certain PUCCH formats, PUCCH (e.g., SR) carrying certain UCI.

(2) The priority of MT PDCCH (/ certain specific PUCCH) transmission is higher than that of DU PUSCH reception, and the specific PDCCH includes: the PDCCH of core set #0 carries the PDCCH of some DCI formats (e.g. fallback DCI 0_0/1_0, common DCI 2_ x).

Principle 5: determining a Priority relation between a DU PUSCH and an MT PDSCH based on a Priority (Priority index) indicated by PDCCH/RRC, wherein when the Priority corresponding to the MT PDSCH is indicated as 1/high/URLLC and the Priority corresponding to the DU PUSCH is indicated as 0/low/eMBB, the Priority of the MT PDSCH is high; otherwise, DU PUSCH takes precedence.

Scenarios in which the priority principle may be used include:

(1) comparing DU Pcell with MT Pcell/sPCell/PScell;

(2) comparing DU Pcell with MT Scell;

(3) comparing DU Scell with MT Pcell/sCell/PSCell;

(4) comparison between DU Scell and MT Scell.

EXAMPLE five

Based on a priority power distribution principle, when MT PUSCH/PUCCH and DU SSB/CSI-RS/PDCCH/PDSCH are subjected to priority comparison, the power distribution of the party with higher priority is prior, if the remaining power is enough for the party with lower priority to send or meets the lowest sending power requirement of the party with lower priority, the two parties send simultaneously, otherwise, only the party with higher priority is sent;

when the priorities of the MT PUSCH and the DU PDSCH are the same and the power is insufficient, the MT PUSCH and the DU PDSCH are subjected to the equal ratio transmission power reduction.

When MT PUSCH/PUCCH (or MT PDCCH/PDSCH) and DU PDCCH/PDSCH (DU PUCCH/PUSCH) are compared in priority, the party with higher priority preferentially meets the requirement of transmitting power or the requirement of receiving SINR, namely when the receiving SINR is met, the transmitted power needs to be determined according to the requirement of receiving SINR, otherwise, the party preferentially meeting the requirement of transmitting power receives the interference caused by the requirement.

Referring to fig. 6, an embodiment of the present application provides a conflict processing apparatus, where the apparatus 600 includes:

a first processing module 601, configured to determine a first operation of a DU and/or an MT of the IAB node when a conflict occurs between the DU and the MT; or, according to a preset conflict between the DU and the MT of the IAB node, limiting the resource configuration of the IAB node or a parent node of the IAB node, or a resource indication of the IAB node by the parent node, or a resource scheduling or transmission parameter setting of the IAB node or the parent node; or acquiring resource type information corresponding to a serving cell of the MT, where the resource type information is resource type configuration of a DU of a parent node of the IAB node, or a resource type that can be used when the parent node of the IAB node schedules the serving cell of the MT, and processing a conflict between the DU of the IAB node and the MT according to the acquired resource type information corresponding to the serving cell of the MT.

determining the receiving behavior of the DU and/or MT according to the priority relation of the DU and MT;

determining the sending behavior of the DU and/or MT according to the priority relation of the DU and MT;

determining the sending parameters of the DU and/or MT according to the priority relation of the DU and MT;

the IAB node receives a plurality of conflicting resource type indications;

a DU cell and an MT cell of the IAB node do not support full duplex, and the DU cell and the MT cell indicate/schedule full duplex at a specific time;

a DU cell and an MT cell are indicated or scheduled to be sent simultaneously at a specific time, and the sending of the DU and the MT cannot meet the requirement of sending power simultaneously;

the DU cell and the MT cell are indicated/scheduled to receive simultaneously at a specific time, but interference between the DU cell and the MT cell may cause reception failure;

a DU cell and an MT cell indicate/schedule to be sent by the DU cell, received by the MT cell or received by the DU cell and sent by the MT cell at a specific time, but the interference between the DU cell and the MT cell can cause the failure of the reception;

the DU cell and the MT cell indicate/are scheduled to receive simultaneously at a certain time instant, the PSD between said DU and MT is not balanced.

In an embodiment of the present application, the apparatus further includes:

a first sending module, configured to send a collision between the DU and the MT of the IAB node to a parent node and/or a child node of the IAB node, or a collision between cells of the MT of the IAB node.

In an embodiment of the present application, the apparatus further includes:

an obtaining module, configured to obtain resource type information corresponding to an MT cell, where the resource type information is resource type configuration of a father node DU of the IAB node, or a resource type that may be used when the father node of the IAB node schedules the MT serving cell.

priority relationship between DU transmission and MT transmission;

priority relationship between DU transmission and MT reception;

the priority relationship between DU reception and MT transmission;

priority relationship between DU reception and MT reception.

In an embodiment of the present application, the apparatus further includes: a first determining module, configured to determine a priority relationship between DU transmission and MT transmission according to one or more of the following items;

information sent by the DU and/or MT;

number of DU and/or MT transmissions;

whether the DU and/or MT is transmitted through the reference cell;

channels transmitted by the DUs and/or MTs;

returning the priority of a radio link layer control channel BH RLC channel;

the physical channel priority indicated by the network side.

In an embodiment of the present application, the first determining module is further configured to: determining that the first information transmission priority of the DU is higher than the priority of the MT transmission; or, determining that the DU has higher priority for transmitting the first information than the MT has for transmitting the second information;

wherein the first information comprises one or more of: SSB, MSG2, MSG4, MSGB, the second information includes other information besides one or more of PRACH, MSG2, MSGA.

In an embodiment of the present application, the first determining module is further configured to: determining that the priority of the MT for sending the third information is higher than the priority of the DU sending; or, determining that the priority of the MT to transmit the third information is higher than the priority of the DU to transmit the fourth information;

In an embodiment of the application, the first determining module is further configured to: determining that the DU cell-specific signaling has a higher priority than the MT transmits fifth information, the fifth information including information other than one or more of PRACH, MSG3, MSGA; alternatively, it is determined that the priority of the MT transmission is higher than the priority of the DU transmission of information other than the DU cell-specific signal.

In an embodiment of the present application, the first determining module is further configured to: determining that the priority sent by the MT is higher than the priority of a PDSCH (physical Downlink shared channel) of a DU (DU), wherein the PDSCH is scheduled to be transmitted for multiple times on multiple resources, and/or the DU PDSCH still has transmission opportunities after the MT is sent; or, determining that the priority of the DU transmission is higher than that of an MT Physical Uplink Shared Channel (PUSCH), wherein the PUSCH is scheduled to be transmitted on a plurality of resources for a plurality of times, and/or the MT PUSCH still has transmission opportunities after the DU transmission.

In an embodiment of the present application, the first determining module is further configured to: determining that the priority of the transmission on the reference cell of the DU is higher than the priority of the transmission on the non-reference cell of the MT; alternatively, it is determined that the priority of transmission on the reference cell of the TM is higher than the priority of transmission on the non-reference cell of the DU.

In an embodiment of the present application, the first determining module is further configured to: determining that the priority of the transmission of a Physical Downlink Control Channel (PDCCH) specific to a DU is higher than the transmission priority of a physical uplink shared channel (MT PUSCH); alternatively, it is determined that the priority of MT-specific PUCCH transmission is higher than that of DU PDSCH transmission.

In an embodiment of the present application, the first determining module is further configured to: when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is higher than that of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the priority for sending the DU PDCCH or the PDSCH is higher than that for sending the MT PUCCH or PUSCH; or when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is lower than or equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the priority for transmitting the MT PUCCH or PUSCH is higher than the priority for transmitting the DU PDCCH or PDSCH; or, when the priority of the BH RLC channel of the highest priority carried by the DU PDSCH is equal to the priority of the BH RLC channel of the highest priority carried by the MT PUSCH, determining the priority relationship between the DU transmission and the MT transmission according to protocol convention or by the IAB node.

In an embodiment of the present application, the first determining module is further configured to: the priority relationship between the DU PDSCH transmission and the MT PUSCH transmission is determined based on the priority indicated by the PDCCH or radio resource control RRC.

comparing DU main service cell Pcell with MT Pcell, special cell sPCell or main service cell PScell of auxiliary cell group;

comparing DU Pcell with MT auxiliary cell Scell;

comparing DU Scell with MT Pcell, sCell or PSCell;

alignment between DU Scell and MT Scell.

In an embodiment of the present application, the apparatus further includes:

a second determining module, configured to determine a priority relationship between DU transmission and MT reception according to one or more of the following items;

information transmitted by the DU and/or received by the MT;

number of DU transmissions and/or MT receptions;

whether the DU is transmitted through the reference cell and/or whether the MT is received through the reference cell;

a channel for DU transmission and/or a channel for MT reception;

the physical channel priority indicated by the network side.

In an embodiment of the application, the second determining module is further configured to: determining that the priority of the DU sending the sixth information is higher than the priority of the MT receiving; or, determining that the DU has higher priority for transmitting the sixth information than the MT receives the seventh information; wherein the sixth information comprises one or more of: SSB, MSG2, MSG4, MSGB, the seventh information comprising other information than one or more of SSB, MSG2, MSG4, MSGB.

In an embodiment of the application, the second determining module is further configured to: determining that the priority of receiving the eighth information by the MT is higher than the priority of sending the DU; or, determining that the MT has higher priority for receiving the eighth information than the DU has for sending the ninth information; wherein the eighth information comprises one or more of: SSB, MSG2, MSG4, MSGB, the ninth information comprising other information than one or more of SSB, MSG2, MSG4, MSGB.

In an embodiment of the application, the second determining module is further configured to: determining that the DU cell-specific signaling has a higher priority than the MT receives tenth information including information other than one or more of SSB, MSG2, MSG4, MSGB; alternatively, it is determined that the reception priority of the MT is higher than the priority of the DU for transmitting eleventh information including information other than the DU cell-specific signal.

In an embodiment of the application, the second determining module is further configured to: determining that the priority of MT reception is higher than the priority of DU PDSCH, wherein PDSCH is scheduled to be transmitted on a plurality of resources for a plurality of times; alternatively, it is determined that the priority of DU transmission is higher than the priority of MT PDSCH reception, where PDSCH is scheduled for multiple transmissions on multiple resources.

In an embodiment of the application, the second determining module is further configured to: determining that the priority transmitted on the reference cell of the DU is higher than the priority received on the non-reference cell of the MT; alternatively, it is determined that the priority received on the reference cell of the TM is higher than the priority transmitted on the non-reference cell of the DU.

In an embodiment of the application, the second determining module is further configured to: determining that the priority of DU-specific PDCCH transmission is higher than the priority of MT PDSCH reception; alternatively, it is determined that the priority of MT-specific PDCCH reception is higher than that of DU PDSCH transmission.

In an embodiment of the application, the second determining module is further configured to: determining a priority relationship between the DU PDSCH and the MT PDSCH based on a priority indicated by the PDCCH or the RRC.

comparing DU Pcell with MT Pcell, sPCell or PScell;

comparing DU Pcell with MT Scell;

comparison between DU Scell and MT Pcell, sCell or PScell;

comparison between DU Scell and MT Scell.

In an embodiment of the present application, the apparatus further includes:

a third determining module, configured to determine a priority relationship between DU reception and MT transmission according to one or more of the following items;

information received by the DU and/or transmitted by the MT;

number of DU reception and/or MT transmission;

whether the DU is received through the reference cell and/or whether the MT is transmitted through the reference cell;

a channel for DU reception and/or a channel for MT transmission;

priority of BH RLC channel;

the physical channel priority indicated by the network side.

In an embodiment of the present application, the third determining module is further configured to: determining that the DU receives the twelfth information with higher priority than the MT sends the twelfth information; or, determining that the DU has higher priority for receiving the twelfth information than the MT has for transmitting the thirteenth information; wherein the twelfth information comprises one or more of: PRACH, MSG3, MSGA, the thirteenth information including other information than one or more of PRACH, MSG3, MSGA.

In an embodiment of the present application, the third determining module is further configured to: determining that the priority of the MT for sending the fourteenth information is higher than the priority of DU reception; or, determining that the priority of the MT to transmit the fourteenth information is higher than the priority of the DU to receive the fifteenth information; wherein the fourteenth information includes one or more of: PRACH, MSG3, MSGA, the fifteenth information including other information besides one or more of PRACH, MSG3, MSGA.

In an embodiment of the present application, the third determining module is further configured to: determining that MT transmission has priority over DU PUSCH reception, wherein the PUSCH is scheduled for multiple transmissions on multiple resources; alternatively, it is determined that the priority of DU reception is higher than the priority of MT PUSCH transmission, wherein the PUSCH is scheduled for multiple transmissions on multiple resources.

In an embodiment of the present application, the third determining module is further configured to: determining that the priority received on the reference cell of the DU is higher than the priority sent on the non-reference cell of the MT; or, determining that the priority transmitted on the reference cell of the TM is higher than the priority received on the non-reference cell of the DU.

In an embodiment of the present application, the third determining module is further configured to: the priority of the DU-specific PUCCH reception is higher than the priority of MT PUSCH transmission; alternatively, the priority of the MT-specific PUCCH transmission is higher than the priority of DU PUSCH reception.

In an embodiment of the present application, the third determining module is further configured to: when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is higher than that of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the receiving priority of the DU PUCCH or PUSCH is higher than the sending priority of the MT PUCCH or PUSCH; or when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is lower than or equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the sending priority of the MT PUCCH or PUSCH is higher than the receiving priority of the DU PUCCH or PUSCH; or, when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining the priority relation between DU reception and MT transmission according to protocol agreement or by the IAB node.

In an embodiment of the present application, the third determining module is further configured to: based on the priority indicated by PDCCH or RRC, the priority relation between DU PUSCH reception and MT PUSCH transmission is determined.

comparing DU Pcell with MT Pcell, sPCell or PScell;

comparing DU Pcell with MT Scell;

comparing DU Scell with MT Pcell, sCell or PSCell;

comparison between DU Scell and MT Scell.

In an embodiment of the present application, the apparatus further includes: a fourth determining module, configured to determine a priority relationship between DU reception and MT reception according to one or more of the following items;

information received by the DU and/or MT;

number of DU reception and/or MT reception;

whether the DU is received through the reference cell and/or whether the MT is received through the reference cell;

a DU received channel and/or an MT received channel;

the physical channel priority indicated by the network side.

In an embodiment of the present application, the fourth determining module is further configured to: determining that the DU receives the sixteenth information with a higher priority than the MT receives; or, determining that the DU has a higher priority to receive the sixteenth information than the MT has to receive the seventeenth information; wherein the sixteenth information includes one or more of: PRACH, MSG3, MSGA, the seventeenth information comprising further information besides one or more of SSB, MSG2, MSG4, MSGB.

In an embodiment of the present application, the fourth determining module is further configured to: determining that the priority of receiving the eighteenth information by the MT is higher than the priority of receiving the DU; or, determining that the MT receives the eighteenth information with higher priority than the DU receives the nineteenth information; wherein the eighteenth information comprises one or more of: SSB, MSG2, MSG4, MSGB, the nineteenth information including other information besides one or more of PRACH, MSG3, MSGA.

In an embodiment of the present application, the fourth determining module is further configured to: determining that MT reception is prioritized over DU PUSCH reception, wherein the PUSCH is scheduled for multiple transmissions on multiple resources; alternatively, it is determined that the priority of DU reception is higher than the priority of MT PDSCH reception, wherein the PDSCH is scheduled for multiple transmissions on multiple resources.

In an embodiment of the present application, the fourth determining module is further configured to: determining that the priority received on the reference cell of the DU is higher than the priority received on the non-reference cell of the MT; alternatively, it is determined that the priority received on the reference cell of the TM is higher than the priority received on the non-reference cell of the DU.

In an embodiment of the present application, the fourth determining module is further configured to: determining that the priority of DU-specific PUCCH reception is higher than the priority of MT PDSCH reception; alternatively, it is determined that the priority of MT-specific PDCCH reception is higher than that of DU PUSCH reception.

In an embodiment of the present application, the fourth determining module is further configured to: based on the priority indicated by PDCCH or RRC, the priority relation between DU PUSCH reception and MT PDSCH reception is determined.

In an embodiment of the present application, a usage scenario of the priority relationship between the DU reception and the MT reception includes any one of the following:

comparing DU Pcell with MT Pcell, sPCell or PScell;

comparing DU Pcell with MT Scell;

comparing DU Scell with MT Pcell, sCell or PSCell;

comparison between DU Scell and MT Scell.

In an embodiment of the present application, the apparatus further includes:

a second processing module, configured to ignore, on a specific symbol of a serving cell of the MT of the IAB node, an influence of the serving cell on a behavior of the MT or on MT scheduling if the specific symbol is configured as an uplink symbol or a downlink symbol, and corresponding resource type information on the serving cell indicates that the MT cannot use the specific symbol.

In an embodiment of the present application, the behavior of the MT includes: if the MT of the IAB node is configured with multiple serving cells and the receiving and sending among multiple cells of the MT are limited by double semi-duplex, the behavior of the MT comprises the receiving and/or sending behaviors of the MT on multiple cells;

alternatively, scheduling the MT includes: scheduling node schedules MT.

In an embodiment of the present application, the behavior of the MT includes: if the MT is configured with an MCG and an SCG, and specific symbols in a service cell of the MCG and a service cell of the SCG are simultaneously configured as uplink symbols, the behavior of the MT comprises the transmitting behavior of the MT on a plurality of cell groups;

alternatively, scheduling the MT includes: the scheduling node schedules the MT over multiple cell groups.

The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

The embodiment of the application also provides network side equipment. As shown in fig. 7, the network-side device 700 includes: antenna 701, radio frequency device 702, baseband device 703. The antenna 701 is connected to a radio frequency device 702. In the uplink direction, the rf device 702 receives information through the antenna 701, and sends the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes information to be transmitted and transmits the information to the radio frequency device 702, and the radio frequency device 702 processes the received information and transmits the processed information through the antenna 701.

The above-mentioned band processing apparatus may be located in the baseband apparatus 703, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 703, where the baseband apparatus 703 includes a processor 704 and a memory 705.

The baseband apparatus 703 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 7, where one of the chips is, for example, a processor 704, and is connected to a memory 705 to call up a program in the memory 705, so as to perform the network device operations shown in the above method embodiments.

The baseband device 703 may further include a network interface 706, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 702.

Specifically, the network side device in the embodiment of the present application further includes: the instructions or programs stored in the memory 705 and capable of being executed on the processor 704, where the processor 704 invokes the instructions or programs in the memory 705 to execute the methods executed by the modules shown in fig. 7, and achieve the same technical effects, which are not described herein for avoiding repetition.

Embodiments of the present application also provide a program product stored on a non-volatile storage medium for execution by at least one processor to implement the steps of the method of processing as described in fig. 3.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the method embodiment shown in fig. 3, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or an instruction, to implement each process of the method embodiment shown in fig. 3, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

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

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A collision handling method executed by a backhaul integrated IAB node, comprising:

determining a first operation of a Distributed Unit (DU) and/or a Mobile Terminal (MT) of the IAB node in case of a conflict between the DU and the MT;

or,

acquiring resource type information corresponding to a serving cell of the MT, wherein the resource type information is resource type configuration of a DU (protocol data Unit) of a father node of the IAB node, or a resource type which can be used when the father node of the IAB node schedules the serving cell of the MT, and processing conflict between the DU of the IAB node and the MT according to the acquired resource type information corresponding to the serving cell of the MT.

2. The method of claim 1, wherein the first operation of determining the DU and/or MT comprises one or more of the following:

and determining the sending parameters of the DU and/or MT according to the priority relation of the DU and MT.

3. The method of claim 2, wherein the collision between the DU and the MT includes one or more of the following:

the IAB node receives a plurality of conflicting resource type indications;

the DU cell and the MT cell of the IAB node do not support full duplex, and the DU cell and the MT cell indicate/schedule full duplex at a specific time;

a DU cell and an MT cell of the IAB node indicate or schedule to be sent at the same time at a specific time, and the sending of the DU and the MT cannot meet the requirement of sending power at the same time;

a DU cell and an MT cell of the IAB node are indicated/scheduled to receive simultaneously at a specific time, but interference between the DU cell and the MT cell can cause reception failure;

a DU cell and an MT cell of the IAB node indicate/schedule to be sent by the DU cell at a specific time, the MT cell receives, or the DU cell receives, and the MT cell sends, but interference between the DU cell and the MT cell may cause reception failure;

and indicating/scheduling the DU cell and the MT cell of the IAB node to be simultaneously received at a specific moment, wherein the PSD between the DU cell and the MT cell is unbalanced.

4. The method of claim 1, further comprising:

and sending the conflict between the DU and MT of the IAB node to a parent node and/or a child node of the IAB node, or sending the conflict between cells of the MT of the IAB node.

5. The method of claim 2, further comprising:

acquiring resource type information corresponding to the MT cell of the IAB node, wherein the resource type information is resource type configuration of a father node DU of the IAB node, or a resource type which can be used when the father node of the IAB node schedules the MT serving cell.

6. The method of claim 2, wherein the priority relationship between the DU and the MT includes one or more of the following:

a priority relationship between the DU transmissions and the MT transmissions;

a priority relationship between said DU transmission and said MT reception;

the priority relationship between the DU reception and the MT transmission;

a priority relationship between the DU reception and the MT reception.

7. The method of claim 6, further comprising:

determining a priority relationship between the DU transmissions and the MT transmissions based on one or more of;

information sent by said DU and/or said MT;

the number of times the DU and/or the MT transmits;

whether the DU and/or the MT is transmitted through a reference cell;

a channel transmitted by the DU and/or the MT;

returning the priority of a radio link layer control channel BH RLC channel;

the physical channel priority indicated by the network side.

8. The method of claim 6, wherein determining the priority relationship between the DU transmission and the MT transmission according to the information transmitted by the DU and/or the MT comprises:

determining that the DU transmits the first information with a higher priority than the MT;

or,

determining that the DU has a higher priority for transmitting first information than the MT has for transmitting second information;

wherein the first information comprises one or more of: a synchronization signal block SSB, a message 2MSG2, a message 4MSG4, a message BMSGB, the second information comprising further information than one or more of a physical random access channel PRACH, a MSG2, a message AMSGA.

9. The method of claim 6, wherein determining the priority relationship between the DU transmission and the MT transmission according to the information transmitted by the DU and/or the MT comprises:

determining that the MT transmits third information with higher priority than the DU;

or,

determining that the MT transmits the third information with higher priority than the DU transmits the fourth information;

10. The method of claim 6, wherein determining the priority relationship between the DU transmission and the MT transmission according to the information transmitted by the DU and/or the MT comprises:

or,

it is determined that the priority of the MT transmission is higher than the priority of the DU transmission of information other than the DU cell-specific signal.

11. The method of claim 6, wherein determining the priority relationship between the DU transmission and the MT transmission according to the number of the DU and/or the MT transmission comprises:

determining that the priority of the MT transmission is higher than the priority of the PDSCH of the DU physical downlink shared channel, wherein the PDSCH is scheduled to be transmitted for multiple times on multiple resources, and/or the DU PDSCH still has transmission opportunities after the MT transmission;

or,

determining that the DU transmission priority is higher than the priority of the MT Physical Uplink Shared Channel (PUSCH), wherein the PUSCH is scheduled to be transmitted on a plurality of resources for a plurality of times, and/or the MT PUSCH still has transmission opportunities after the DU transmission.

12. The method according to claim 6, wherein determining the priority relationship between the DU transmission and the MT transmission according to whether the DU and/or the MT transmits through a reference cell comprises:

determining that a priority transmitted on a reference cell of the DU is higher than a priority transmitted on a non-reference cell of the MT;

or,

determining that the priority of sending on the reference cell of the TM is higher than the priority of sending on the non-reference cell of the DU.

13. The method of claim 6, wherein determining the priority relationship between the DU transmission and the MT transmission according to the channel for the DU transmission and/or the channel for the MT transmission comprises:

determining that the priority of the DU-specific Physical Downlink Control Channel (PDCCH) transmission is higher than the priority of the MT PUSCH transmission;

or,

determining that the MT-specific PUCCH transmission has a higher priority than the DU PDSCH transmission.

14. The method of claim 6, wherein determining the priority relationship between the DU transmission and the MT transmission according to the priority of the BH RLC channel comprises:

when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is higher than that of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the priority sent by the DU PDCCH or PDSCH is higher than that sent by the MT PUCCH or PUSCH;

or,

when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is lower than or equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining that the priority for transmitting the MT PUCCH or PUSCH is higher than the priority for transmitting the DU PDCCH or PDSCH;

or,

and when the priority of the BH RLC channel with the highest priority borne by the DU PDSCH is equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining the priority relation between the DU transmission and the MT transmission according to protocol agreement or an IAB node.

15. The method of claim 6, wherein determining the priority relationship between the DU transmission and the MT transmission according to the physical channel priority indicated by the network side comprises:

determining a priority relationship between the DU PDSCH transmission and the MT PUSCH transmission based on a priority indicated by a PDCCH or a radio resource control RRC.

16. The method according to claim 6, wherein the usage scenario of the priority relationship between the DU transmission and the MT transmission includes any of the following:

comparing the DU primary service cell Pcell with the MT Pcell, the special cell sPCell or a primary service cell PScell of an auxiliary cell group;

comparing the DU Pcell with the MT auxiliary cell Scell;

comparing the DU Scell with the MT Pcell, sCell or PSCell;

and (3) comparing the DU Scell with the MT Scell.

17. The method of claim 6, further comprising:

determining a priority relationship between the DU transmission and the MT reception based on one or more of the following;

information transmitted by said DU and/or received by said MT;

the number of times the DU was transmitted and/or the MT was received;

whether the DU is sent through a reference cell and/or whether the MT is received through a reference cell;

a channel transmitted by the DU and/or a channel received by the MT;

the physical channel priority indicated by the network side.

18. The method according to claim 17, wherein the determining the priority relationship between the DU transmission and the MT reception according to the information of the DU transmission and/or the MT reception comprises:

determining that the DU transmits sixth information with a higher priority than the MT receives;

or,

determining that the DU has higher priority for transmitting sixth information than the MT receives seventh information;

wherein the sixth information comprises one or more of: SSB, MSG2, MSG4, MSGB, the seventh information comprising further information in addition to one or more of SSB, MSG2, MSG4, MSGB.

19. The method according to claim 17, wherein the determining the priority relationship between the DU transmission and the MT reception according to the information received by the DU transmission and/or the MT reception comprises:

determining that the MT receives the eighth information with higher priority than the DU transmission;

or,

determining that the MT receives the eighth information with higher priority than the DU sends the ninth information;

20. The method according to claim 17, wherein the determining the priority relationship between the DU transmission and the MT reception according to the information received by the DU transmission and/or the MT reception comprises:

determining that the DU cell-specific signaling has a higher priority than the MT receives tenth information, the tenth information including information other than one or more of SSB, MSG2, MSG4, MSGB;

or,

determining that the reception priority of the MT is higher than the priority of the DU for transmitting eleventh information, wherein the eleventh information comprises other information except the DU cell-specific signal.

21. The method according to claim 17, wherein the determining the priority relationship between the DU transmission and the MT reception according to the number of times of the DU transmission and/or the MT reception comprises:

determining that the MT receives priority over the DU PDSCH, wherein the PDSCH is scheduled for transmission on a plurality of resources a plurality of times; or,

determining that the DU transmission has a higher priority than the MT PDSCH reception, wherein the PDSCH is scheduled for multiple transmissions on multiple resources.

22. The method according to claim 17, wherein said determining the priority relationship between said DU transmission and said MT reception according to whether said DU transmission is through a reference cell and/or whether said MT reception is through a reference cell comprises:

determining that the priority sent on the reference cell of the DU is higher than the priority received on the non-reference cell of the MT;

or,

determining that the priority received on the reference cell of the TM is higher than the priority sent on the non-reference cell of the DU.

23. The method of claim 17, wherein determining the priority relationship between the DU transmission and the MT reception according to the channel of the DU transmission and/or the channel of the MT reception comprises:

determining that the priority of the DU-specific PDCCH transmission is higher than the priority of the MT PDSCH reception;

or,

determining that the MT-specific PDCCH reception has a higher priority than the DU PDSCH transmission.

24. The method of claim 17, wherein determining the priority relationship between the DU transmission and the MT reception according to the channel for the DU transmission and/or the channel for the MT reception comprises:

determining a priority relationship between the DU PDSCH and the MT PDSCH based on a priority indicated by a PDCCH or RRC.

25. The method of claim 17, wherein the usage scenario of priority between the DU sending and the MT receiving comprises any of the following:

comparing the DU Pcell with the MT Pcell, the sPCell or the PScell;

comparing the DU Pcell with the MT Scell;

comparing the DU Scell with the MT Pcell, sCell or PSCell;

a comparison between the DU Scell and the MT Scell.

26. The method of claim 6, further comprising:

determining a priority relationship between the DU reception and the MT transmission based on one or more of the following;

information received by the DU and/or transmitted by the MT;

the number of times the DU is received and/or the MT is transmitted;

whether the DU is received through a reference cell and/or whether the MT is transmitted through a reference cell;

a channel received by the DU and/or a channel transmitted by the MT;

priority of BH RLC channel;

the physical channel priority indicated by the network side.

27. The method according to claim 26, wherein said determining the priority relationship between said DU reception and said MT transmission according to the information of said DU reception and/or said MT transmission comprises:

determining that the DU receives twelfth information with higher priority than the MT transmits;

or,

determining that the DU receives the twelfth information with a higher priority than the MT transmits the thirteenth information;

28. The method according to claim 26, wherein said determining the priority relationship between said DU reception and said MT transmission according to the information of said DU reception and/or said MT transmission comprises:

determining that the MT transmits fourteenth information with higher priority than the DU reception;

or,

determining that the MT transmits fourteenth information at a higher priority than the DU receives fifteenth information;

29. The method according to claim 26, wherein the determining the priority relationship between the DU reception and the MT transmission according to the number of DU reception and/or MT transmission comprises:

determining that the MT transmission has a higher priority than the DU PUSCH reception, wherein the PUSCH is scheduled for multiple transmissions on multiple resources;

or,

30. The method according to claim 26, wherein said determining the priority relationship between said DU reception and said MT transmission according to whether said DU is received through a reference cell and/or whether said MT transmits through a reference cell comprises:

determining that the priority received on the reference cell of the DU is higher than the priority sent on the non-reference cell of the MT;

or,

determining that the priority sent on the reference cell of the TM is higher than the priority received on the non-reference cell of the DU.

31. The method according to claim 26, wherein the determining the priority relationship between the DU reception and the MT transmission according to the channel of the DU reception and/or the channel of the MT transmission comprises:

the priority of the DU-specific PUCCH reception is higher than the priority of the MT PUSCH transmission;

or,

the priority of the MT-specific PUCCH transmission is higher than the priority of the DU PUSCH reception.

32. The method of claim 26, wherein the determining the priority relationship between the DU reception and the MT transmission according to the priority of the BH RLC channel comprises:

or,

and when the priority of the BH RLC channel with the highest priority borne by the DU PUSCH is equal to the priority of the BH RLC channel with the highest priority borne by the MT PUSCH, determining the priority relation between the DU reception and the MT transmission according to protocol agreement or the IAB node.

33. The method of claim 26, wherein the determining the priority relationship between the DU reception and the MT transmission according to the physical channel priority indicated by the network side comprises:

determining a priority relationship between the DU PUSCH reception and the MT PUSCH transmission based on a priority indicated by PDCCH or RRC.

34. The method according to claim 26, wherein the usage scenario of priority relationship between said DU reception and said MT transmission comprises any of the following:

comparing the DU Pcell with the MT Pcell, the sPCell or the PScell;

comparing the DU Pcell with the MT Scell;

comparing the DU Scell with the MT Pcell, sCell or PSCell;

a comparison between the DU Scell and the MT Scell.

35. The method of claim 6, further comprising:

determining a priority relationship between the DU reception and the MT reception based on one or more of the following;

information received by the DU and/or the MT;

the number of times of said DU reception and/or said MT reception;

whether the DU is received through a reference cell and/or whether the MT is received through a reference cell;

a channel received by the DU and/or a channel received by the MT;

the physical channel priority indicated by the network side.

36. The method according to claim 35, wherein determining the priority relationship between the DU reception and the MT reception according to the information received by the DU reception and/or the MT reception comprises:

determining that the DU receives sixteenth information with a higher priority than the MT receives;

or,

determining that the DU receives sixteenth information at a higher priority than the MT receives seventeenth information;

37. The method according to claim 35, wherein determining the priority relationship between the DU reception and the MT reception according to the information received by the DU reception and/or the MT reception comprises:

determining that the MT receives eighteenth information with priority over the DU;

or,

determining that the MT receives eighteenth information at a higher priority than the DU receives nineteenth information;

38. The method according to claim 35, wherein determining the priority relationship between the DU reception and the MT reception according to the number of DU reception and/or MT reception comprises:

determining that the MT reception is prioritized over the DU PUSCH reception, wherein the PUSCH is scheduled for multiple transmissions on multiple resources;

or,

determining that the DU reception is prioritized over the MT PDSCH reception, wherein the PDSCH is scheduled for multiple transmissions on multiple resources.

39. The method according to claim 35, wherein determining the priority relationship between the DU reception and the MT reception according to whether the DU reception is received through a reference cell and/or whether the MT reception is received through a reference cell comprises:

or,

determining that the priority received on the reference cell of the TM is higher than the priority received on the non-reference cell of the DU.

40. The method according to claim 35, wherein determining the priority relationship between the DU reception and the MT reception according to the channel received by the DU and/or the channel received by the MT comprises:

determining that the priority of the DU-specific PUCCH reception is higher than the priority of the MT PDSCH reception;

or,

determining that the MT-specific PDCCH reception has a higher priority than the DU PUSCH reception.

41. The method of claim 35, wherein determining the priority relationship between the DU reception and the MT reception according to the physical channel priority indicated by the network side comprises:

determining a priority relationship between the DU PUSCH reception and the MT PDSCH reception based on a priority indicated by a PDCCH or RRC.

42. The method according to claim 35, wherein the usage scenario of the priority relationship between DU reception and MT reception includes any of the following:

comparing the DU Pcell with the MT Pcell, the sPCell or the PScell;

comparing the DU Pcell with the MT Scell;

comparing the DU Scell with the MT Pcell, sCell or PSCell;

a comparison between the DU Scell and the MT Scell.

43. The method of claim 1, further comprising:

if a specific symbol of a serving cell of the MT of the IAB node is configured as an uplink symbol or a downlink symbol, and the corresponding resource type information on the serving cell indicates that the MT cannot use the specific symbol, ignoring the influence of the serving cell on the behavior of the MT or the MT scheduling on the specific symbol.

44. The method according to claim 43, wherein the MT behavior comprises:

if the MT of the IAB node is configured with multiple serving cells and the receiving and sending among multiple cells of the MT are limited by double semi-worker, the behavior of the MT comprises the receiving and/or sending behaviors of the MT on the multiple cells;

alternatively, scheduling the MT includes: scheduling node schedules MT.

45. The method according to claim 43, wherein the MT behavior comprises:

if the MT is configured with an MCG and an SCG, and specific symbols in a service cell of the MCG and a service cell of the SCG are simultaneously configured as uplink symbols, the behavior of the MT comprises the transmission behavior of the MT on a plurality of cell groups;

46. A conflict processing apparatus, comprising:

47. A network-side device, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 1 to 45.

48. A readable storage medium, on which a program or instructions are stored which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 45.