WO2024059983A1

WO2024059983A1 - Resource indication methods and apparatuses, device, storage medium, and program product

Info

Publication number: WO2024059983A1
Application number: PCT/CN2022/119732
Authority: WO
Inventors: 徐婧
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2024-03-28

Abstract

The present application relates to the technical field of communications. Disclosed are resource indication methods and apparatuses, a device, a storage medium, and a program product. One resource indication method comprises: receiving frequency domain resource indication information, the number of bits of the frequency domain resource indication information being determined on the basis of a first frequency domain bandwidth, and valid bits of the frequency domain resource indication information being determined on the basis of a second frequency domain bandwidth. In the resource indication methods provided by the present application, the number of bits of the frequency domain resource indication information is still determined on the basis of the first frequency domain bandwidth, and the valid bits in the frequency domain resource indication information is determined on the basis of the second frequency domain bandwidth, such that terminal devices accurately determine frequency domain resources of physical channels on the basis of the valid bits, thereby preventing network devices from sending different-bit frequency domain resource indications according to sub-frames of different types.

Description

Resource indication methods, devices, equipment, storage media and program products

Technical Field

The present application relates to the field of communication technology, and in particular to a resource indication method, device, equipment, storage medium and program product.

Background technique

When a network device (such as a base station) configures time-frequency resources of a physical channel to a terminal device, the base station sends frequency domain resource indication information to the terminal device, and the terminal device determines the frequency domain resource location of the physical channel through the frequency domain resource indication information.

Contents of the invention

Embodiments of the present application provide a resource indication method, device, equipment, storage medium and program product, which can ensure that the frequency domain resource structure of the frequency domain resources scheduled by downlink control information (Downlink Control Information, DCI) is different. The number of bits in the information fields of the domain resource indication information is the same.

According to one aspect of the present application, a resource indication method is provided, the method is executed by a terminal device, and the method includes:

Receive frequency domain resource indication information, the frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel, the number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth, the frequency domain resource indication information The effective bits are determined based on the second frequency domain bandwidth;

Wherein, the first frequency domain bandwidth includes the second frequency domain bandwidth.

According to one aspect of the present application, a resource indication method is provided, the method being performed by a network device, the method comprising:

Send frequency domain resource indication information, the frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel, the number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth, the frequency domain resource indication information The effective bits are determined based on the second frequency domain bandwidth;

According to one aspect of the present application, a resource indication device is provided, and the device includes:

A receiving module, configured to receive frequency domain resource indication information. The frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel. The number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth. The valid bits of the frequency domain resource indication information are determined based on the second frequency domain bandwidth;

A sending module, configured to send frequency domain resource indication information. The frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel. The number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth. The valid bits of the frequency domain resource indication information are determined based on the second frequency domain bandwidth;

According to one aspect of the present application, a communication device is provided. The communication device includes a processor; the processor is configured to implement the above resource indication method by executing a computer program.

According to one aspect of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is used to be executed by a processor to implement the resource indication method as described above.

According to one aspect of the present application, a chip is provided. The chip includes programmable logic circuits and/or program instructions, and is used to implement the resource indication method as described above when the communication device installed with the chip is running.

According to one aspect of the present application, a computer program product is provided. The computer program product includes computer instructions. The computer instructions are stored in a computer-readable storage medium. A processor reads and reads the computer-readable storage medium from the computer-readable storage medium. The computer instructions are executed to implement the resource indication method as described above.

According to one aspect of the present application, a computer program is provided. The computer program includes computer instructions, and a processor of a computer device executes the computer instructions, so that the computer device performs the resource indication method as described above.

The technical solutions provided by the embodiments of this application at least include the following beneficial effects:

On the one hand, the number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth. Therefore, when the frequency domain resource structures of the scheduled frequency domain resources are different, the information domain of the frequency domain resource indication information can also be ensured. The number of bits is the same; on the other hand, the effective bits in the frequency domain resource indication information are determined based on the second frequency domain bandwidth, so that when the frequency domain resource structure includes frequency domain resources in different transmission directions, the terminal equipment can determine based on the effective bits Determine the frequency domain resources allocated to the physical channel, thereby avoiding the network device from sending different bits of frequency domain resource indication information according to different frequency domain resource structures.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the XDD technology provided by an exemplary embodiment of the present application;

Figure 2 is a schematic diagram of a method for frequency domain resource indication provided by an exemplary embodiment of the present application;

Figure 3 is a schematic diagram of a method for frequency domain resource indication provided by an exemplary embodiment of the present application;

Figure 4 is a schematic diagram of a resource indication system provided by an exemplary embodiment of the present application;

Figure 5 is a flow chart of a resource indication method provided by an exemplary embodiment of the present application;

Figure 6 is a flow chart of a resource indication method provided by an exemplary embodiment of the present application;

Figure 7 is a schematic diagram of resource distribution in a subframe provided by an exemplary embodiment of the present application;

Figure 8 is a schematic diagram of resource distribution in a subframe provided by an exemplary embodiment of the present application;

Figure 9 is a schematic diagram of resource distribution in a subframe provided by an exemplary embodiment of the present application;

Figure 10 is a schematic diagram of resource distribution in a subframe provided by an exemplary embodiment of the present application;

Figure 11 is a schematic diagram of resource distribution in subframes provided by an exemplary embodiment of the present application;

Figure 12 is a schematic diagram of a bitmap of the first information field provided by an exemplary embodiment of the present application;

Figure 13 is a flow chart of a resource indication method provided by an exemplary embodiment of the present application;

Figure 14 is a flow chart of a resource indication method provided by an exemplary embodiment of the present application;

Figure 15 is a schematic structural diagram of a resource indication device provided by an exemplary embodiment of the present application;

Figure 16 is a schematic structural diagram of a resource indication device provided by an exemplary embodiment of the present application;

Figure 17 is a block diagram of a communication device illustrating an exemplary embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

First, the relevant technologies involved in the embodiments of this application are introduced:

(1) Uplink subband in downlink symbol/slot

In related technology, data can be sent and received simultaneously on different subbands of the same subframe. This technology is called XDivision Duplex (XDD) technology and is mainly used on the base station side. The terminal device side still maintains the state of only supporting sending data or receiving data within a subframe.

In some embodiments, the XDD technology, as shown in Figure 1, configures the middle subband of the frequency domain resource corresponding to one downlink symbol/time slot as the uplink subband. When a terminal device is configured or instructed to receive data on the downlink symbol/time slot, such as when receiving data carried on the Physical Downlink Shared Channel (PDSCH), the frequency domain resources occupied by the PDSCH are different from the downlink symbol. / The uplink subbands in the frequency domain resources corresponding to the time slot overlap. Since the resource part of the uplink subband on the base station side is in a state of receiving uplink data from other terminal devices, the base station side cannot transmit to the terminal device in this uplink subband. Downlink data means that the base station will only send PDSCH to the terminal device on the downlink subbands on both sides of the uplink subband.

The subband configurations in different symbols/slots within a subframe may be consistent or different, and this is not specifically limited in the embodiment of the present application.

(2) Frequency domain resource indication method

Frequency domain resource indication methods for PDSCH or Physical Uplink Shared Channel (PUSCH) usually include the following two methods:

·Resource allocation method 0 (Type 0)

Resource allocation is performed according to Type 0. The frequency domain resource information domain, that is, the RB allocation information, includes a bitmap to indicate or allocate the resource block group (RBG) of the terminal device. An RBG is A continuous set of PRBs or a set of continuous virtual resource blocks (Virtual Resource Block, VRB). The size of the RBG is determined by high-level parameters, usually represented by P. The size of the RBG in different bandwidth parts (Bandwidth Part, BWP) It may be different, and the size of the RBG in different frequency domain resource configurations may also be different.

For a include

For the uplink or downlink BWP i of an RB, the total number of RBGs is represented by N _RBGs , and the calculation formula is:

Among them, the number of RBs contained in the first RBG (can also be understood as the size of the first RBG) is

if

Then the number of RBs contained in the last RBG is

if

Then the number of RBs contained in the last RBG is

The size of other RBGs is P.

The bitmap has a total of N _RBG bits, and each bit represents an RBG. RBGs are arranged in ascending order of frequency, and the index of BWP starts from the BWP with the lowest frequency. The sequence bits of the RBG bitmap are from RBG 0 to RBGN _RBG -1, and are mapped from the most significant bit (Most Significant Bit, MSB) to the least significant bit (Last/Least Significant Bit, LSB). RBGs allocated to terminal devices and RBGs not allocated to terminal devices are represented by different bit values in the bitmap. When the corresponding bit value of a certain RBG in the bitmap is the first value, it means that the RBG is an RBG allocated to the terminal device. When the corresponding bit value of a certain RBG in the bitmap is the second value, it means that the RBG is not allocated to the terminal device. For example, if an RBG is allocated to a terminal device, its corresponding bit value in the bitmap is 1; if an RBG is not allocated to a terminal device, its corresponding bit value in the bitmap is 0. .

For example, as shown in Figure 2, the network device allocates resources from RBG 0 to RBG 8 according to Type 0. The bitmap is 010001101, which means that RBG 1, RBG 5, RBG 6, and RBG 8 correspond to each other in the bitmap. The bit value of RBG is 1, and the corresponding bit values of other RBGs in the bitmap are 0 to indicate that RBG 1, RBG 5, RBG 6, and RBG 8 are allocated to the terminal device.

·Resource allocation method 1 (Type 1)

Resource allocation is performed according to Type 1. In the frequency domain resource information field, that is, in the RB allocation information, a continuous VRB set is indicated or allocated to the terminal device. The mapping of VRBs and PRBs in the VRB set is interleaved or non-interleaved. VRB The VRB in the collection is located in the activated BWP.

For Type 1, the frequency domain resource information field consists of the Resource Indication Value (RIV). The RIV is determined based on the starting VRB number RB _start and the continuous length L _RBS of the allocated RB. The specific calculation formula is as follows:

if

So

if

So

in,

Exemplarily, as shown in FIG3 , the network device allocates resources to RB 0 to RB 17 according to Type 1, indicating that the resource block starting number RB _start is 7 and the resource block continuous length _LRBS is 7, which means that RB 7 to RB 14 are allocated to the terminal device.

Figure 4 shows a schematic diagram of a resource indication system provided by an exemplary embodiment of the present application. The system includes a network device 410 and a terminal device 420, and/or a terminal device 420 and a terminal device 430, which are not limited in this application.

The network device 410 in this application provides wireless communication functions. The network device 410 includes but is not limited to: Evolved Node B (Evolved Node B, eNB), Radio Network Controller (Radio Network Controller, RNC), Node B (Node B). , NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver Station, BTS), home base station (for example, Home Evolved Node B, or Home Node B, HNB), baseband unit (Baseband Unit, BBU), Access Point (AP), wireless relay node, wireless backhaul node, transmission point (Transmission Point, TP) or sending and receiving point ( Transmission and Reception Point (TRP), etc., can also be the next generation node B (Next Generation Node B, gNB) or transmission point (TRP or TP) in the fifth generation (5th Generation, 5G) mobile communication system, or, for One or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or it can also be a network node that constitutes a gNB or transmission point, such as a baseband unit (BBU) or a distributed unit (Distributed Unit, DU) etc., or base stations in the Beyond Fifth Generation (B5G), Sixth Generation (6G) mobile communication system, etc., or Core Network (CN), fronthaul (Fronthaul), backhaul Backhaul, Radio Access Network (RAN), network slicing, etc., or the serving cell, primary cell (PCell), primary secondary cell (PSCell), special cell of the terminal device (Special Cell, SpCell), secondary cell (Secondary Cell, SCell), neighboring cells, etc.

Terminal equipment 420 and/or terminal equipment 430 in this application, or user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, User terminal, terminal, wireless communication equipment, user agent, user device. The terminal includes but is not limited to: handheld devices, wearable devices, vehicle-mounted devices and Internet of Things devices, such as: mobile phones, tablets, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet Device (Mobile Internet Device, MID), augmented reality (Augmented Reality, AR) terminal, virtual reality (Virtual Reality, VR) terminal and mixed reality (Mixed Reality, MR) terminal, wearable devices, handles, electronic tags, controllers , wireless terminals in Industrial Control, wireless terminals in Self Driving, wireless terminals in Remote Medical, wireless terminals in Smart Grid, Transportation Safety ), wireless terminals in Smart City, wireless terminals in Smart Home, wireless terminals in Remote Medical Surgery, cellular phones, cordless phones, session initiation protocols ( Session Initiation Protocol, SIP) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (Personal Digital Assistant, PDA), TV set top box (Set Top Box, STB), Customer Premise Equipment (Customer Premise Equipment, CPE) etc.

The network device 410 and the terminal device 420 communicate with each other through some air interface technology, such as the Uu interface.

For example, there are two communication scenarios between the network device 410 and the terminal device 420: an uplink communication scenario and a downlink communication scenario. Among them, uplink communication refers to sending signals to the network device 410; downlink communication refers to sending signals to the terminal device 420.

The terminal device 420 and the terminal device 430 communicate with each other through some air interface technology, such as Uu interface.

Exemplarily, there are two communication scenarios between the terminal device 420 and the terminal device 430: a first side communication scenario and a second side communication scenario. The first side communication refers to sending signals to the terminal device 430; the second side communication refers to sending signals to the terminal device 420.

The terminal device 420 and the terminal device 430 are both within the network coverage and located in the same cell, or the terminal device 420 and the terminal device 430 are both within the network coverage but located in different cells, or the terminal device 420 is within the network coverage but the terminal Device 430 is outside network coverage.

The technical solutions provided by the embodiments in this application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, broadband code division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system , LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Global Internet Microwave Access (Worldwide Interoperability for Microwave Access, WiMAX) communication system, fifth generation (5th Generation, 5G) mobile communication system, New Radio (NR) system, evolution system of NR system, LTE (LTE-based access) on unlicensed spectrum to unlicensed spectrum, LTE-U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, terrestrial communication network (Terrestrial Networks, TN) system, non-terrestrial communication network (Non-Terrestrial) Networks, NTN) systems, Wireless Local Area Networks (WLAN), Wireless Fidelity (Wi-Fi), cellular IoT systems, cellular passive IoT systems, and can also be applied to subsequent 5G NR systems The evolution system can also be applied to the beyond fifth generation mobile communication system (Beyond Fifth Generation, B5G), the sixth generation mobile communication system (Sixth Generation, 6G) and subsequent evolutionary systems. In some embodiments of this application, "NR" may also be called 5G NR system or 5G system. Among them, the 5G mobile communication system may include non-standalone networking (Non-Standalone, NSA) and/or standalone networking (Standalone, SA).

The technical solutions provided by the embodiments in this application can also be applied to Machine Type Communication (MTC), Long Term Evolution-Machine (LTE-M), and Device to Device. D2D) network, Machine to Machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, the IoT network may include, for example, the Internet of Vehicles. Among them, the communication methods in the Internet of Vehicles system are collectively called Vehicle to X (V2X, X can represent anything). For example, the V2X can include: Vehicle to Vehicle (V2V) communication, vehicle and Infrastructure (Vehicle to Infrastructure, V2I) communication, communication between vehicles and pedestrians (Vehicle to Pedestrian, V2P) or vehicle and network (Vehicle to Network, V2N) communication, etc.

The resource indication system provided by this embodiment can be applied to, but is not limited to, at least one of the following communication scenarios: uplink communication scenarios, downlink communication scenarios, and sidelink communication scenarios.

It should be noted that in this application, the bandwidth used for the downlink channel, the bandwidth configured for the downlink channel, the bandwidth used for downlink transmission, the bandwidth used for downlink data transmission, the bandwidth occupied by downlink transmission resources, etc. have the same or similar expressions meaning. Similarly, the bandwidth used for the uplink channel, the bandwidth configured for the uplink channel, the bandwidth used for uplink transmission, the bandwidth used for uplink data transmission, the bandwidth occupied by uplink transmission resources, etc. express the same or similar meaning. Similarly, the bandwidth used for sidelink channels, the bandwidth configured for sidelink channels, the bandwidth used for sidelink transmission, the bandwidth used for sidelink data transmission, the bandwidth occupied by sidelink transmission resources, etc. express the same or similar meanings. .

Figure 5 shows a flow chart of a resource indication method provided by some exemplary embodiments of the present application. This embodiment illustrates that the method is executed by a terminal device. The method includes:

Step 502: The terminal device receives frequency domain resource indication information (which may be referred to as frequency domain resource indication or frequency domain resource allocation for short).

The frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel. In some embodiments, the frequency domain resource indication information is carried in the first information field of DCI, and the first information field is the frequency domain resource allocation (Frequency Domain Resource Assignment, FDRA) field.

In some embodiments, the physical channel includes at least one of an uplink channel, a downlink channel, and a side channel, but is not limited thereto. The embodiments of the present application do not specifically limit this.

The number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth, and the effective bits of the frequency domain resource indication information are determined based on the second frequency domain bandwidth; wherein the first frequency domain bandwidth includes the second frequency domain bandwidth.

The valid bits refer to the bits used to determine the frequency domain resources of the physical channel in the frequency domain resource indication information. Or, the valid bits refer to the bits that need to be used, analyzed or processed when parsing the frequency domain resource indication information, and the other bits except the valid bits need to be trimmed or discarded.

The first frequency domain bandwidth refers to the bandwidth of the bandwidth part (BandWidth Part, BWP). The first frequency domain bandwidth is the bandwidth of the BWP activated by the terminal device. In some embodiments, the terminal device is configured with multiple BWPs, but only one BWP is activated at the same time (i.e., the first frequency domain bandwidth). The first frequency domain bandwidth is usually represented by the number of resource blocks (Resource Block, RB) in the BWP.

The second frequency domain bandwidth is the bandwidth used for the physical channel in BWP.

In some embodiments, the second frequency domain bandwidth is the bandwidth used for the physical channel in the activated BWP.

In some subframes, all bandwidths in the BWP are used for the same physical channel, such as a downlink channel; in some subframes, the BWP is divided into multiple subbands, and different subbands are used for different physical channels, such as the first subband is used for the downlink channel and the second subband is used for the uplink channel. When the physical channel configured by the network device to the terminal device is an uplink channel, the second frequency domain bandwidth is the bandwidth used for the uplink channel in the BWP; when the physical channel configured by the network device to the terminal device is a downlink channel, the second frequency domain bandwidth is the bandwidth used for the downlink channel in the BWP; when the physical channel configured by the network device to the terminal device is a side channel, the second frequency domain bandwidth is the bandwidth used for the side channel in the BWP.

In some embodiments, the second frequency domain bandwidth refers to the bandwidth of the physical channel indicated by the frequency domain resource indication information in the BWP.

For example, taking the physical channel as a downlink channel, when there are both uplink transmission resources and downlink transmission resources in the same subframe, that is, when the subframe can send and receive data at the same time, the second frequency domain bandwidth is The bandwidth used for downlink transmission in the BWP, and the second frequency domain bandwidth is represented by the number of RBs included in the bandwidth used for downlink transmission in the BWP. When the same subframe is a downlink channel, the second frequency domain bandwidth is the bandwidth of the BWP, that is, the second frequency domain bandwidth is equal to the first frequency domain bandwidth.

In some embodiments, the second frequency domain bandwidth refers to a continuous bandwidth.

For example, taking the physical channel as a downlink channel, when there are both uplink channels and downlink channels in the same subframe, that is, when the subframe can send and receive data at the same time, the second frequency domain bandwidth includes the BWP The continuous bandwidth used for downlink transmission, the second frequency domain bandwidth is usually represented by the number of continuous RBs included in the bandwidth used for downlink transmission in the BWP.

In some embodiments, the second frequency domain bandwidth refers to a discrete bandwidth.

For example, taking the physical channel as a downlink channel, when there are both uplink channels and downlink channels in the same subframe, that is, when the subframe can send and receive data at the same time, the second frequency domain bandwidth includes the BWP The discrete bandwidth used for downlink transmission, the second frequency domain bandwidth is usually represented by the number of discrete RBs included in the bandwidth used for downlink transmission in the BWP.

In some embodiments, when data is received on different subbands of the same subframe, the second frequency domain bandwidth is the bandwidth of the BWP, that is, the second frequency domain bandwidth is equal to the first frequency domain bandwidth.

To sum up, in the technical solution provided by the embodiments of this application, the terminal device receives frequency domain resource indication information used to determine the frequency domain resource location of the physical channel, and the number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth, Valid bits of the frequency domain resource indication information are determined based on the second frequency domain bandwidth. In the resource indication method provided by this application, on the one hand, the number of bits of the frequency domain resource indication information is still determined based on the first frequency domain bandwidth, because the frequency domain resource indication information is usually carried in DCI. Therefore, when the frequency domain resource structures of DCI scheduled frequency domain resources are different, it can also ensure that the number of bits in the information field of the frequency domain resource indication information in DCI is the same; on the other hand, the number of valid bits in the frequency domain resource indication information Determination based on the second frequency domain bandwidth enables the terminal equipment to determine the frequency domain resources allocated to the physical channel based on the effective bits when the frequency domain resource structure includes frequency domain resources in different transmission directions, thus avoiding the need for the network equipment to determine the frequency domain resources allocated to the physical channel based on the effective bits. The resource structure sends different bit numbers of frequency domain resource indication information.

Figure 6 shows a flow chart of a resource indication method provided by some exemplary embodiments of the present application. This embodiment illustrates that the method is executed by a terminal device. The method includes:

Step 602: The terminal device receives frequency domain resource indication information.

In some embodiments, the terminal device receives frequency domain resource indication information, referred to as frequency domain resource indication.

The frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel.

The first frequency domain bandwidth refers to the bandwidth of BWP. The first frequency domain bandwidth is the bandwidth of the BWP activated by the terminal device. In some embodiments, the terminal device is configured with multiple BWPs, but only one BWP is the active BWP at the same time. The first frequency domain bandwidth is usually represented by the number of RBs in the BWP.

In some embodiments, when the physical channel is a downlink channel, the second frequency domain bandwidth includes any of the following situations:

·The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources;

·The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except for the bandwidth occupied by uplink transmission resources and guard sidebands;

The second frequency domain bandwidth includes the frequency domain bandwidth used for downlink transmission in the first frequency domain bandwidth;

The second frequency domain bandwidth includes the frequency domain bandwidth occupied by the downlink transmission resources in the first frequency domain bandwidth.

In some embodiments, when the physical channel is an uplink channel, the second frequency domain bandwidth includes any of the following situations:

·The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by downlink transmission resources;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the downlink transmission resources and the protection sideband;

·The second frequency domain bandwidth includes the frequency domain bandwidth used for uplink transmission in the first frequency domain bandwidth;

·The second frequency domain bandwidth includes the frequency domain bandwidth occupied by the uplink transmission resources in the first frequency domain bandwidth.

Guard sidebands refer to the gaps between subbands.

In some embodiments, the configuration of the protection sideband includes at least one of the following situations:

·Network equipment configuration;

Determined based on the capabilities of the terminal device.

When the physical channel is a downlink channel, the second frequency domain bandwidth includes the following situations:

When the physical channel is a downlink channel, the second frequency domain bandwidth includes the frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources.

Figure 7 shows a schematic diagram of resource distribution in subframes. In the figure, the downlink subband refers to the bandwidth occupied by the downlink channel. When the physical channel is a downlink channel, the frequency domain resource indication information is used to determine the frequency domain resource location of the downlink channel. In Figure 7, the first frequency domain bandwidth is the bandwidth of the BWP, and the second frequency domain bandwidth includes the first frequency domain bandwidth. The frequency domain bandwidth used for downlink transmission. The resources in the subframe in Figure 7 are all downlink channels, so the second frequency domain bandwidth is equal to the first frequency domain bandwidth.

The frequency domain resource indication information is used to determine the frequency domain resource location of the downlink channel. The bandwidth of the BWP in the same subframe is represented by the number of RBs corresponding to the BWP. That is, the bandwidth of the first frequency domain bandwidth can be expressed as:

The bandwidth occupied by the uplink channel in the same subframe can be expressed as: N _UL .

When the resources in the same subframe are all downlink channels, the second frequency domain bandwidth is the bandwidth of the BWP, that is, the second frequency domain bandwidth is equal to the first frequency domain bandwidth, that is,

Figure 8 is a schematic diagram of frequency domain resource distribution in an exemplary subframe. In the figure, the downlink subband refers to the bandwidth occupied by downlink transmission resources, and the uplink subband refers to the bandwidth occupied by uplink transmission resources. In the same subframe, a bandwidth occupied by a downlink transmission resource is included between the bandwidths occupied by two uplink transmission resources. When the physical channel is a downlink channel, the frequency domain resource indication information is used to determine the frequency domain resources of the downlink channel. position, the first frequency domain bandwidth in Figure 8 is the bandwidth of the BWP, and the second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources, that is, the first frequency domain bandwidth except Frequency domain bandwidth beyond the uplink transmission bandwidth.

In the case where both the uplink channel and the downlink channel exist in the same subframe, that is, when the subframe can transmit and receive data at the same time, the second frequency domain bandwidth is the bandwidth used for downlink transmission in the BWP, and the second frequency domain Bandwidth is usually expressed by the number of RBs included in the bandwidth used for downlink transmission in BWP:

In some embodiments, FIG. 9 is a schematic diagram of frequency domain resource distribution in an exemplary subframe. In the figure, the downlink subband refers to the bandwidth occupied by downlink transmission resources, and the uplink subband refers to the bandwidth occupied by uplink transmission resources. The same subframe includes the bandwidth occupied by uplink transmission resources and the bandwidth occupied by downlink transmission resources. When the physical channel is an uplink channel, the frequency domain resource indication information is used to determine the frequency domain resource location of the uplink channel. Figure 9 The first frequency domain bandwidth is the bandwidth of the BWP, and the second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources, that is, the first frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources. outside the frequency domain bandwidth.

In some embodiments, the terminal device determines the number of RBs corresponding to the BWP through Radio Resource Control layer parameters (Radio Resource Control, RRC).

When the physical channel is a downlink channel, the second frequency domain bandwidth includes a frequency domain bandwidth other than the bandwidth occupied by the uplink transmission resource and the bandwidth occupied by the guard sideband.

In some embodiments, a schematic diagram of resource distribution in a subframe is shown in Figure 10. In the figure, the downlink subband refers to the bandwidth occupied by the downlink channel, and the uplink subband refers to the bandwidth occupied by the uplink channel. The same subframe includes the bandwidth occupied by three downlink channels and two guard sidebands. When the physical channel is a downlink channel, the frequency domain resource indication information is used to determine the frequency domain resource location of the downlink channel. Figure 10 The first frequency domain bandwidth is the bandwidth of the BWP, and the second frequency domain bandwidth includes the frequency domain bandwidth used for downlink transmission in the first frequency domain bandwidth. Therefore, the second frequency domain bandwidth is equal to the first frequency domain bandwidth minus the guard sideband occupied bandwidth.

The bandwidth occupied by the guard sideband in the same subframe can be expressed as: N _G .

When the same subframe is a downlink channel, the second frequency domain bandwidth is the bandwidth of the BWP, that is, the second frequency domain bandwidth is equal to the first frequency domain bandwidth, that is,

In some embodiments, a schematic diagram of resource distribution in a subframe is shown in Figure 11. In the figure, the downlink subband refers to the bandwidth occupied by the downlink channel, and the uplink subband refers to the bandwidth occupied by the uplink channel. The same subframe includes the bandwidth occupied by two downlink channels, the bandwidth occupied by one uplink channel and two guard sidebands. When the physical channel is a downlink channel, the frequency domain resource indication information is used to determine the frequency domain of the downlink channel. Resource location, the first frequency domain bandwidth in Figure 11 is the bandwidth of the BWP, and the second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources and the bandwidth occupied by the protection sideband.

In the case where both the uplink channel and the downlink channel exist in the same subframe, that is, when the subframe can transmit and receive data at the same time, the second frequency domain bandwidth is the bandwidth used for downlink transmission in the BWP, and the second frequency domain Bandwidth is usually represented by the number of RBs included in the bandwidth used for downlink transmission in BWP:

In some embodiments, when the physical channel is a first side channel, the second frequency domain bandwidth includes a frequency domain bandwidth other than a bandwidth occupied by the target transmission resource; or,

The second frequency domain bandwidth includes frequency domain bandwidth other than the bandwidth occupied by the target transmission resources and guard sidebands; or,

The second frequency domain bandwidth includes the frequency domain bandwidth occupied by the first side channel;

Among them, the target transmission resources include: at least one of a second side transmission resource, an uplink transmission resource and a downlink transmission resource; the second side transmission resource has a different transmission direction from the first side transmission resource, the first side transmission resource is a side transmission resource corresponding to the first side channel, and the first side transmission resource is used to transmit the first side channel.

For example, terminal equipment A and terminal equipment B communicate through a first side channel, and the bandwidth of the BWP between terminal equipment A and terminal equipment B is D, that is, the frequency domain bandwidth of the first frequency domain bandwidth is D, and in the same When the subframe includes the second sidelink transmission resource, the frequency domain bandwidth of the second sidelink transmission resource is d1, then the frequency domain bandwidth of the second frequency domain bandwidth is: D-d1.

It can be understood that after the frequency domain resource location is determined, the transmission resource is used to transmit at least one of a downlink channel, an uplink channel, and a sidelink channel. For example, when the frequency domain resource indication information determines that the physical channel is a downlink channel, the second frequency domain bandwidth includes the frequency domain bandwidth occupied by the downlink channel in the first frequency domain bandwidth; or the second frequency domain bandwidth includes the first frequency domain bandwidth. The frequency domain bandwidth occupied by downlink transmission resources in the bandwidth; or, the second frequency domain bandwidth includes the frequency domain bandwidth used for downlink transmission in the first frequency domain bandwidth; or, the second frequency domain bandwidth includes the first frequency domain bandwidth except for uplink The frequency domain bandwidth is outside the bandwidth occupied by the transmission resources; or, the second frequency domain bandwidth includes the frequency domain bandwidth outside the bandwidth occupied by the uplink transmission resources and the protection sideband in the first frequency domain bandwidth.

For example, when the frequency domain resource indication information determines that the physical channel is the first sidelink channel, the second frequency domain bandwidth includes the frequency domain bandwidth occupied by the first sidelink channel; or the second frequency domain bandwidth includes the first sidelink channel. Frequency domain bandwidth occupied by transmission resources.

In some embodiments, the method of determining the valid bits includes any of the following situations:

·The valid bits are the N ₁ low-order bits in the frequency domain resource indication information, and N ₁ is determined based on the second frequency domain bandwidth.

·The valid bits are the N ₂ high-order bits in the frequency domain resource indication information. N ₂ is determined based on the second frequency domain bandwidth. N ₁ and N ₂ are positive integers.

In some embodiments, a bitmap of the first information field is shown in FIG. 12 . The figure includes 10 bits, with the low bits on the left and the high bits on the right. When the valid bits are the N ₁ low-order bits in the frequency domain resource indication information, the valid bits are the lowest N ₁ bits from left to right in the bitmap of the first information domain. When the valid bits are the N ₂ high-order bits in the frequency domain resource indication information, the valid bits are the highest N ₂ bits from right to left in the bitmap of the first information domain.

For example, when N ₁ is 4, the lowest 4 bits from left to right in the bitmap of the first information field are regarded as the valid bits.

In some embodiments, the values of other bits except the valid bits in the frequency domain resource indication information are fixed values or default values.

In some embodiments, the fixed value is set to 0 or 1, but it is not limited to this, and the embodiments of this application do not specifically limit this.

For example, assuming that the fixed value is 0, the number of bits in the frequency domain resource indication information is M, and the valid bits in the frequency domain resource indication information are m, then the M-m bits in the frequency domain resource indication information are set to 0.

In some embodiments, the size of the Resource Block Group (RBG) within the second frequency domain bandwidth is determined based on the second frequency domain bandwidth; or,

The size of the RBG within the second frequency domain bandwidth is determined based on the first frequency domain bandwidth.

RBG refers to the set of RBs.

For example, when there are both uplink channels and downlink channels in the same subframe, the size of the RBG within the second frequency domain bandwidth is determined based on the second frequency domain bandwidth.

In the case that all channels in the same subframe are downlink channels, the size of the RBG in the second frequency domain bandwidth is determined based on the first frequency domain bandwidth.

In some embodiments, the frequency domain resource indication information is carried in the first information domain of the downlink control information.

In some embodiments, the frequency domain resource indication information is used to determine the frequency domain resource location of the downlink channel, where the number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth and the frequency domain resource indication mode.

For example, when the frequency domain resource indication mode is resource allocation mode 0 (Type 0), the number of bits of the frequency domain resource indication information is: _NRBG , where _NRBG represents the BWP

The number of RBGs composed of RBs.

When the frequency domain resource indication method is resource allocation method 1 (Type 1), the number of bits of the frequency domain resource indication information is:

In some embodiments, when the frequency domain resource indication mode is resource allocation mode 1 and the resource mapping adopts the "dynamic switching" mode, the number of bits of the frequency domain resource indication information is:

"Dynamic switching" mode means that the first bit value in DCI is used to indicate resource allocation mode 1 or resource allocation mode 0. For example, when the first bit value is 1, it indicates resource allocation mode 1, and when the first bit value is 0, it indicates resource allocation mode 1. When indicating resource allocation mode 0, the dynamic switching of resource allocation mode is realized by switching the first bit value in DCI.

In some embodiments, the frequency domain resource indication information is used to determine the frequency domain resource position of the downlink channel, wherein the effective number of bits of the frequency domain resource indication information is determined based on the second frequency domain bandwidth and the frequency domain resource indication method.

For example, when the frequency domain resource indication mode is resource allocation mode 0 (Type 0), the number of valid bits of the frequency domain resource indication information is: N′ _RBG , where N′ _RBG represents

The number of RBGs composed of RBs.

When the frequency domain resource indication mode is resource allocation mode 1, the number of valid bits of the frequency domain resource indication information is:

In some embodiments, when the frequency domain resource indication mode is resource allocation mode 1 and the resource mapping adopts the "dynamic switching" mode, the effective number of bits of the frequency domain resource indication information is:

In some embodiments, the size of the RBG within the second frequency domain bandwidth is determined based on the second frequency domain bandwidth; or, the size of the RBG within the second frequency domain bandwidth is determined based on the first frequency domain bandwidth.

The size of the RBG in the second frequency domain bandwidth is determined based on the second frequency domain bandwidth, which can make the network device's scheduling granularity for non-overlapping subband full duplex (SBFD) terminal equipment consistent with that of non-SBFD terminal equipment. The scheduling granularity remains consistent and resource fragmentation is avoided.

In some embodiments, in the repeated transmission, the second frequency domain bandwidth is determined based on the bandwidth of the physical channel in the first transmission of the repeated transmission or the last transmission of the repeated transmission. In other words, in repeated transmission, the second frequency domain bandwidth is determined based on the bandwidth of the physical channel corresponding to the transmission direction in the first transmission of repeated transmission or the last transmission of repeated transmission.

For example, when the physical channel is a downlink channel, in at least two repeated transmissions, the second frequency domain bandwidth includes the frequency domain bandwidth occupied by the downlink channel in the first transmission of the repeated transmission; or, the second frequency domain The bandwidth includes the frequency domain bandwidth occupied by the downlink channel in the last transmission of repeated transmissions.

Exemplarily, when the physical channel is an uplink channel, in at least two repeated transmissions, the second frequency domain bandwidth includes the frequency domain bandwidth occupied by the uplink channel in the first transmission of the repeated transmission; or, the second frequency domain bandwidth includes the frequency domain bandwidth occupied by the uplink channel in the last transmission of the repeated transmission.

In at least two repeated transmissions, the bandwidth corresponding to the transmission direction of the physical channel in the first transmission or the last transmission in the repeated transmission is determined as the second frequency domain bandwidth, and multiple repeated transmissions are supported using the same frequency domain resources. Data transmission reduces the complexity of data transmission and improves the simplicity of data transmission.

Step 604: Determine the frequency domain resources of the physical channel based on the frequency domain resource indication information.

In some embodiments, the terminal device determines the frequency domain resources of the physical channel based on valid bits in the frequency domain resource indication information.

In some embodiments, the terminal device determines the frequency domain resource of the uplink channel based on the valid bits in the frequency domain resource indication information.

For example, the frequency domain resource indication information is used to determine the frequency domain resource location of the uplink channel. The terminal device determines the number of bits of the frequency domain resource indication information based on the first frequency domain bandwidth to be J, and the terminal device determines the frequency domain resource based on the second frequency domain bandwidth. The valid bits used to indicate the frequency domain resource location of the uplink channel in the indication information are K, and the J-K bits other than the valid bits of the frequency domain resource indication information are set to 0 or 1. Then, the terminal equipment indicates based on the frequency domain resources The K valid bits in the information determine the frequency domain resources of the uplink channel.

In some embodiments, the terminal device determines the frequency domain resource of the downlink channel based on the valid bits in the frequency domain resource indication information.

For example, the frequency domain resource indication information is used to determine the frequency domain resource location of the downlink channel. The terminal device determines that the number of bits of the frequency domain resource indication information is J based on the first frequency domain bandwidth. The terminal device determines the frequency domain resource based on the second frequency domain bandwidth. The valid bits used to indicate the frequency domain resource location of the downlink channel in the indication information are K, and the J-K bits other than the valid bits of the frequency domain resource indication information are set to 0 or 1. Then, the terminal equipment indicates based on the frequency domain resources The K valid bits in the information determine the frequency domain resources of the downlink channel.

In some embodiments, the terminal device determines the frequency domain resources of the sidelink channel based on valid bits in the frequency domain resource indication information.

For example, the frequency domain resource indication information is used to determine the frequency domain resource location of the side channel between the terminal device and the terminal device. The terminal device determines that the number of bits of the frequency domain resource indication information is J based on the first frequency domain bandwidth. The terminal device determines the bit number of the frequency domain resource indication information based on the first frequency domain bandwidth. The second frequency domain bandwidth determines that the valid bits used to indicate the frequency domain resource location of the side channel in the frequency domain resource indication information are K, and the J-K bits other than the valid bits of the frequency domain resource indication information are set to 0 or 1. , then, the first terminal device determines the frequency domain resource of the sidelink channel between the first terminal device and the second terminal device based on the K valid bits in the frequency domain resource indication information.

Furthermore, without considering the influence of other fields of DCI, ensuring that the number of bits of frequency domain resource indication information remains unchanged for different frequency domain resource structures can make the size of DCI consistent. This eliminates the need for the communication system to design different DCI formats for different frequency domain resource structures, reduces the number of DCI formats, and reduces the computational complexity and time-consuming of terminal equipment when blindly detecting PDCCH.

The above embodiment describes the resource indication method on the terminal device side. Next, the resource indication method on the network device side will be described.

Each embodiment will be introduced below.

Figure 13 shows a flow chart of a resource indication method provided by an exemplary embodiment of the present application. This embodiment illustrates that the method is executed by a network device. The method includes:

Step 1301: The network device sends frequency domain resource indication information (which may be referred to as frequency domain resource indication or frequency domain resource allocation).

In some embodiments, the physical channel includes at least one of an uplink channel, a downlink channel, and a sidelink channel, but is not limited thereto, and is not specifically limited in the embodiments of this application.

Valid bits refer to bits that can be used to determine the frequency domain resources of the physical channel. Or, the valid bits refer to the bits that need to be used or parsed when parsing the frequency domain resource indication information, and the other bits except the valid bits need to be trimmed or discarded.

The first frequency domain bandwidth refers to the bandwidth of BWP. The first frequency domain bandwidth is the bandwidth of the BWP activated by the terminal device. In some embodiments, the terminal device is configured with multiple BWPs, but only one BWP is the active BWP (ie, the first frequency domain bandwidth) at the same time. The first frequency domain bandwidth is usually represented by the number of RBs in the BWP.

Further, the second frequency domain bandwidth is the bandwidth used for the physical channel in the activated BWP.

In some subframes, all bandwidths in the BWP are used for the same physical channel, such as the downlink channel; in some subframes, the BWP is divided into multiple subbands, and different subbands are used for different physical channels, such as the first One subband is used for the downlink channel and the second subband is used for the uplink channel. When the physical channel configured by the network device to the terminal device is an uplink channel, the second frequency domain bandwidth is the bandwidth used for the uplink channel in the BWP; when the physical channel configured by the network device to the terminal device is a downlink channel, the second frequency domain bandwidth The bandwidth is the bandwidth used for the downlink channel in the BWP; when the physical channel configured by the network device to the terminal device is a sidelink channel, the second frequency domain bandwidth is the bandwidth used for the sidelink channel in the BWP.

For example, taking the physical channel as a downlink channel, when there are both uplink channels and downlink channels in the same subframe, that is, when the subframe can send and receive data at the same time, the second frequency domain bandwidth is BWP The bandwidth used for downlink transmission, the second frequency domain bandwidth is represented by the number of RBs included in the bandwidth used for downlink transmission in the BWP. When the same subframe is a downlink channel, the second frequency domain bandwidth is the bandwidth of the BWP, that is, the second frequency domain bandwidth is equal to the first frequency domain bandwidth.

For example, taking the physical channel as a downlink channel, when there are both uplink channels and downlink channels in the same subframe, that is, when the subframe can send and receive data at the same time, the second frequency domain bandwidth is in BWP The continuous bandwidth used for downlink transmission, the second frequency domain bandwidth is usually represented by the number of RBs included in the continuous bandwidth used for downlink transmission in the BWP.

For example, taking the physical channel as a downlink channel, when there are both uplink channels and downlink channels in the same subframe, that is, when the subframe can send and receive data at the same time, the second frequency domain bandwidth is in BWP The discrete bandwidth used for downlink transmission, the second frequency domain bandwidth is usually represented by the number of RBs included in the discrete bandwidth used for downlink transmission in the BWP.

To sum up, in the technical solution provided by the embodiments of this application, the network device sends frequency domain resource indication information used to determine the frequency domain resource location of the physical channel. The number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth. Valid bits of the frequency domain resource indication information are determined based on the second frequency domain bandwidth. On the one hand, the number of bits of the frequency domain resource indication information is still determined based on the first frequency domain bandwidth, because the frequency domain resource indication information is usually carried in the DCI. Therefore, when the frequency domain resource structures of DCI scheduled frequency domain resources are different, it can also ensure that the number of bits in the information field of the frequency domain resource indication information in DCI is the same; on the other hand, the number of valid bits in the frequency domain resource indication information Determination based on the second frequency domain bandwidth enables the terminal equipment to determine the frequency domain resources allocated to the physical channel based on the effective bits when the frequency domain resource structure includes frequency domain resources in different transmission directions, thus avoiding the need for the network equipment to determine the frequency domain resources allocated to the physical channel based on the effective bits. The resource structure sends different bit numbers of frequency domain resource indication information.

Figure 14 shows a flowchart of a resource indication method provided by an exemplary embodiment of the present application. This embodiment illustrates that the method is executed by a network device. The method includes:

Step 1401: The network device sends frequency domain resource indication information.

The number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth, and the valid bit position of the frequency domain resource indication information is determined based on the second frequency domain bandwidth; wherein the first frequency domain bandwidth includes the second frequency domain bandwidth.

·The second frequency domain bandwidth includes the frequency domain bandwidth used for downlink transmission in the first frequency domain bandwidth;

·The second frequency domain bandwidth includes the frequency domain bandwidth occupied by downlink transmission resources in the first frequency domain bandwidth.

·The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except for the bandwidth occupied by downlink transmission resources and guard sidebands;

Guard sidebands refer to the gaps between subbands.

In some embodiments, the protection sideband configuration includes at least one of the following situations:

Network equipment configuration;

·Determined based on the reporting capability of the terminal device.

When the physical channel is a downlink channel, the second frequency domain bandwidth includes a frequency domain bandwidth other than the bandwidth occupied by the uplink transmission resource.

In some embodiments, the frequency domain resource indication information is used to determine the frequency domain resource position of the downlink channel. The bandwidth of the BWP in the same subframe is the number of RBs corresponding to the BWP, that is, the bandwidth of the first frequency domain bandwidth can be expressed as:

In some embodiments, the frequency domain resource indication information is used to determine the frequency domain resource location of the uplink channel. The bandwidth of the BWP in the same subframe is represented by the number of RBs corresponding to the BWP, that is, the bandwidth of the first frequency domain bandwidth can be Expressed as:

The bandwidth occupied by the downlink channel in the same subframe can be expressed as: N _DL .

In the case where both the uplink channel and the downlink channel exist in the same subframe, that is, when the subframe can transmit and receive data at the same time, the second frequency domain bandwidth is the bandwidth used for uplink transmission in the BWP, and the second frequency domain Bandwidth is usually represented by the number of RBs included in the bandwidth used for uplink transmission in BWP:

In the case where all channels in the same subframe are uplink channels, the second frequency domain bandwidth is the bandwidth of the BWP, that is, the second frequency domain bandwidth is equal to the first frequency domain bandwidth, that is,

In some embodiments, the frequency domain resource indication information is used to determine the frequency domain resource location of the downlink channel. The bandwidth of the BWP in the same subframe is represented by the number of RBs corresponding to the BWP, that is, the bandwidth of the first frequency domain bandwidth can be Expressed as:

When an uplink channel and a downlink channel exist in the same subframe, that is, when the subframe can send and receive data at the same time, the second frequency domain bandwidth is the bandwidth used for downlink transmission in the BWP. The second frequency domain bandwidth is usually expressed by the number of RBs included in the bandwidth used for downlink transmission in the BWP:

In some embodiments, the frequency domain resource indication information is used to determine the frequency domain resource location of the uplink channel. The bandwidth of the BWP in the same subframe is the number of RBs corresponding to the BWP, that is, the bandwidth of the first frequency domain bandwidth can be expressed as :

The bandwidth occupied by the guard band in the same subframe can be expressed as: N _G .

When the same subframe is an uplink channel, the second frequency domain bandwidth is the bandwidth of the BWP, that is, the second frequency domain bandwidth is equal to the first frequency domain bandwidth, that is,

In some embodiments, when the physical channel is a first sidelink channel, the second frequency domain bandwidth includes a frequency domain bandwidth other than a bandwidth occupied by the target transmission resource; or,

The target transmission resources include: at least one of a second sidelink transmission resource, an uplink transmission resource and a downlink transmission resource; the second sidelink transmission resource has a different transmission direction from the first sidelink transmission resource, and the first sidelink transmission resource has a different transmission direction. The resources are used to transmit the first side channel.

For example, terminal device A and terminal device B communicate through a first sideline channel, and the bandwidth of the BWP between terminal device A and terminal device B is D, that is, the frequency domain bandwidth of the first frequency domain bandwidth is D. When the second sideline transmission resource is included in the same subframe, the frequency domain bandwidth of the second sideline transmission resource is d1, then, the frequency domain bandwidth of the second frequency domain bandwidth is: D-d1.

For example, taking a fixed value of 0 as an example, the number of bits of the frequency domain resource indication information is M, and the number of valid bits in the frequency domain resource indication information is m, then the M-m bits in the frequency domain resource indication information are set to 0.

RBG refers to the set of RBs.

When the same subframe is a downlink channel, the size of the RBG in the second frequency domain bandwidth is determined based on the first frequency domain bandwidth.

For example, when the frequency domain resource indication mode is resource allocation mode 0, the number of bits of the frequency domain resource indication information is: N _RBG , where N _RBG represents the number of bits in BWP.

The number of RBGs composed of RBs.

When the frequency domain resource indication mode is resource allocation mode 1, the number of bits of the frequency domain resource indication information is:

In some embodiments, when the frequency domain resource indication mode is resource allocation mode 1 and the resource mapping adopts the "dynamic switching" mode, then the number of bits of the frequency domain resource indication information is:

In some embodiments, the frequency domain resource indication information is used to determine the frequency domain resource location of the downlink channel, wherein the number of bits of the frequency domain resource indication information is determined based on the second frequency domain bandwidth and the frequency domain resource indication method.

For example, when the frequency domain resource indication mode is resource allocation mode 0, the number of valid bits of the frequency domain resource indication information is: N′ _RBG , where N′ _RBG represents

The number of RBGs composed of RBs.

In some embodiments, when the frequency domain resource indication mode is resource allocation mode 1 and resource mapping adopts the "dynamic switching" mode, then the effective number of bits of the frequency domain resource indication information is:

In some embodiments, the network device indicates the frequency domain resources of the physical channel through valid bits in the frequency domain resource indication information.

In some embodiments, the network device indicates the frequency domain resource of the uplink channel through valid bits in the frequency domain resource indication information.

For example, the frequency domain resource indication information is used to determine the frequency domain resource location of the uplink channel. The number of bits in the frequency domain resource indication information is J. The effective bits in the frequency domain resource indication information used to indicate the frequency domain resource location of the uplink channel are K, the J-K bits other than the valid bits in the frequency domain resource indication information are 0 or 1, then the network device indicates the frequency domain resource of the uplink channel through K valid bits in the frequency domain resource indication information.

In some embodiments, the network device indicates the frequency domain resources of the downlink channel through valid bits in the frequency domain resource indication information.

For example, the frequency domain resource indication information is used to determine the frequency domain resource location of the downlink channel. The number of bits of the frequency domain resource indication information is J. The effective bits in the frequency domain resource indication information used to indicate the frequency domain resource location of the downlink channel are K, the J-K bits other than the valid bits in the frequency domain resource indication information are 0 or 1, then the network device indicates the frequency domain resources of the downlink channel through K valid bits in the frequency domain resource indication information.

In some embodiments, the network device indicates the frequency domain resources of the sidelink channel through valid bits in the frequency domain resource indication information.

For example, the frequency domain resource indication information is used to determine the frequency domain resource location of the sidelink channel between the terminal device and the terminal device. The number of bits of the frequency domain resource indication information is J. The final frequency domain resource indication information is used to indicate the sidelink The valid bits of the frequency domain resource position of the channel are K, and the J-K bits other than the valid bits of the frequency domain resource indication information are set to 0 or 1. Then, the first terminal device uses K bits in the frequency domain resource indication information. The valid bit indicates the frequency domain resource of the side channel between the first terminal device and the second terminal device.

In some embodiments, in repeated transmission, the second frequency domain bandwidth is determined based on the bandwidth of the physical channel corresponding to the transmission direction in the first transmission of the repeated transmission or the last transmission of the repeated transmission.

For example, when the physical channel is an uplink channel, in at least two repeated transmissions, the second frequency domain bandwidth includes the frequency domain bandwidth occupied by the uplink channel in the first transmission of the repeated transmission; or, the second frequency domain The bandwidth includes the frequency domain bandwidth occupied by the uplink channel in the last transmission of repeated transmissions.

To sum up, in the technical solution provided by the embodiments of this application, the network device sends frequency domain resource indication information used to determine the frequency domain resource location of the physical channel. The number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth. The valid bits in the frequency domain resource indication information are determined based on the second frequency domain bandwidth, and the network device indicates the frequency domain resource of the physical channel through the valid bits in the frequency domain resource indication information. On the one hand, the number of bits of the frequency domain resource indication information is still determined based on the first frequency domain bandwidth, because the frequency domain resource indication information is usually carried in the DCI. Therefore, when the frequency domain resource structures of DCI scheduled frequency domain resources are different, it can also ensure that the number of bits in the information field of the frequency domain resource indication information in DCI is the same; on the other hand, the number of valid bits in the frequency domain resource indication information Determination based on the second frequency domain bandwidth enables the terminal equipment to determine the frequency domain resources allocated to the physical channel based on the effective bits when the frequency domain resource structure includes frequency domain resources in different transmission directions, thus avoiding the need for the network equipment to determine the frequency domain resources allocated to the physical channel based on the effective bits. The resource structure sends different bit numbers of frequency domain resource indication information.

Figure 15 shows a schematic structural diagram of a resource indication device provided by an exemplary embodiment of the present application. The device includes:

A receiving module 1501 is configured to receive frequency domain resource indication information, where the frequency domain resource indication information is used to determine a frequency domain resource position of a physical channel, where the number of bits of the frequency domain resource indication information is determined based on a first frequency domain bandwidth, and where the valid bit position of the frequency domain resource indication information is determined based on a second frequency domain bandwidth;

In some embodiments, the first frequency domain bandwidth is the bandwidth of the bandwidth part BWP.

In some embodiments, the second frequency domain bandwidth is a bandwidth used in a corresponding transmission direction of the physical channel.

In some embodiments, the physical channel is a downlink channel;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth excluding the bandwidth occupied by uplink transmission resources; or,

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources and guard sidebands; or,

The second frequency domain bandwidth includes the frequency domain bandwidth used for downlink transmission in the first frequency domain bandwidth.

In some embodiments, the physical channel is an uplink channel;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by downlink transmission resources; or,

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except for the bandwidth occupied by downlink transmission resources and guard sidebands; or,

The second frequency domain bandwidth includes the frequency domain bandwidth used for uplink transmission in the first frequency domain bandwidth.

In some embodiments, the physical channel is a first sidelink channel;

The second frequency domain bandwidth includes a frequency domain bandwidth other than the bandwidth occupied by the target transmission resource; or,

The second frequency domain bandwidth includes a frequency domain bandwidth other than the bandwidth occupied by the target transmission resources and guard sidebands; or,

Wherein, the target transmission resource includes: at least one of a second sidelink transmission resource, an uplink transmission resource and a downlink transmission resource; the transmission direction of the second sidelink transmission resource is different from that of the first sidelink transmission resource. The sidelink transmission resources are used to transmit the first sidelink channel.

In some embodiments, the valid bits are N ₁ low-order bits in the frequency domain resource indication information, where N ₁ is determined based on the second frequency domain bandwidth; or,

The valid bits are N ₂ high-order bits in the frequency domain resource indication information, N ₂ is determined based on the second frequency domain bandwidth, and N ₁ and N ₂ are positive integers.

In some embodiments, the values of other bits in the frequency domain resource indication information except the valid bits are fixed values or default values.

In some embodiments, the size of the RBG within the second frequency domain bandwidth is determined based on the second frequency domain bandwidth; or,

In some embodiments, the frequency domain resource indication information is carried in the first information domain of downlink control information.

In some embodiments, the determining module 1502 is configured to determine the frequency domain resources of the physical channel based on the frequency domain resource indication information.

In some embodiments, the determining module 1502 is also configured to, in repeated transmission, the second frequency domain bandwidth be based on the physical bandwidth in the first transmission of the repeated transmission or the last transmission of the repeated transmission. The bandwidth of the channel corresponding to the transmission direction is determined.

FIG16 shows a schematic diagram of the structure of a resource indication device provided by an exemplary embodiment of the present application. The device includes:

The sending module 1601 is configured to send frequency domain resource indication information. The frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel. The number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth. Valid bits of the frequency domain resource indication information are determined based on the second frequency domain bandwidth;

In some embodiments, the determining module 1602 is used to determine the domain resource indication information.

In some embodiments, the first frequency domain bandwidth is the bandwidth of BWP.

In some embodiments, the physical channel is a downlink channel;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by uplink transmission resources; or,

The second frequency domain bandwidth includes a frequency domain bandwidth used for downlink transmission in the first frequency domain bandwidth.

In some embodiments, the physical channel is an uplink channel;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the downlink transmission resources and the protection sideband; or,

In some embodiments, the physical channel is a first side channel;

In some embodiments, the valid bits are N ₁ low-order bits in the frequency domain resource indication information, and N ₁ is determined based on the second frequency domain bandwidth; or,

The valid bits are N ₂ high-order bits in the frequency domain resource indication information, N ₂ is determined based on the second frequency domain band, and N ₁ and N ₂ are positive integers.

In some embodiments, the size of the RBG within the second frequency domain bandwidth is determined based on the second frequency domain bandwidth; or, the size of the RBG within the second frequency domain bandwidth is determined based on the first frequency domain bandwidth. Domain bandwidth is determined.

In some embodiments, in repeated transmission, the second frequency domain bandwidth is determined based on the bandwidth of the physical channel corresponding to the transmission direction in the first transmission of the repeated transmission or the last transmission of the repeated transmission. of.

Figure 17 shows a schematic structural diagram of a communication device (terminal device or network device) provided by an exemplary embodiment of the present application. The communication device includes: a processor 1701, a receiver 1702, a transmitter 1703, a memory 1704 and a bus 1705.

When the communication device is a terminal device, the receiving module 1501 in the above embodiment corresponds to the receiver 1702, and the determining module 1502 corresponds to the processor 1701. That is, the receiver 1702 is used to perform steps related to the receiving module 1501 , and the processor 1701 is used to perform steps related to the determining module 1502 .

In the case where the communication device is a network device, the sending module 1601 in the above embodiment corresponds to the transmitter 1703. That is, the transmitter 1703 is used to perform steps related to the sending module 1601.

The processor 1701 includes one or more processing cores. The processor 1701 executes various functional applications and information processing by running software programs and modules.

The receiver 1702 and the transmitter 1703 may be implemented as a communication component, which may be a communication chip.

Memory 1704 is connected to processor 1701 through bus 1705.

The memory 1704 may be used to store at least one instruction, and the processor 1701 is used to execute the at least one instruction to implement each step of the resource indication method mentioned in the above method embodiment.

Additionally, memory 1704 may be implemented by any type of volatile or non-volatile storage device, or combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable Read-only memory (Electrically-Erasable Programmable Read Only Memory, EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, EPROM), static random access memory (Static Random Access Memory, SRAM), read-only memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).

According to one aspect of the present application, a terminal device is provided. The terminal device includes a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor. The processor is configured to load and execute the executable instructions. Execute instructions to implement the resource indication method as described above.

According to one aspect of the present application, a network device is provided. The network device includes a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor. Wherein, the processor is configured to load and execute executable instructions to implement the resource indication method as described above.

According to one aspect of the present application, a chip is provided. The chip includes a programmable logic circuit or program. When the communication device installed with the chip is running, the chip is used to implement the resource indication method as described above.

In an exemplary embodiment of the present application, a computer-readable storage medium is further provided, wherein the computer-readable storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the resource indication method as described above.

In an exemplary embodiment of the present application, a computer program product is also provided, with executable instructions stored in the computer program product, and the executable instructions are loaded and executed by the processor to achieve the above resource indication method.

In an exemplary embodiment of the present application, a computer program is also provided. The computer program includes computer instructions. The processor of the computer device executes the computer instructions, so that the computer device executes the resource indication as described above. method.

Those of ordinary skill in the art can understand that all or part of the steps to implement the above embodiments can be completed by hardware, or can be completed by instructing relevant hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage media mentioned can be read-only memory, magnetic disks or optical disks, etc.

The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

A resource indication method, characterized in that the method is executed by a terminal device, and the method includes:

Receive frequency domain resource indication information, the frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel, the number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth, the frequency domain resource indication information The effective bits are determined based on the second frequency domain bandwidth;

Wherein, the first frequency domain bandwidth includes the second frequency domain bandwidth.
The method according to claim 1, characterized in that the first frequency domain bandwidth is the bandwidth of the bandwidth part BWP.
The method according to claim 1, characterized in that the second frequency domain bandwidth is a bandwidth used in the corresponding transmission direction of the physical channel.
The method according to any one of claims 1 to 3, characterized in that the physical channel is a downlink channel;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by uplink transmission resources; or,

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources and guard sidebands; or,

The second frequency domain bandwidth includes the frequency domain bandwidth used for downlink transmission in the first frequency domain bandwidth.
The method according to any one of claims 1 to 3, characterized in that the physical channel is an uplink channel;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by downlink transmission resources; or,

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the downlink transmission resources and guard sidebands; or,

The second frequency domain bandwidth includes the frequency domain bandwidth used for uplink transmission in the first frequency domain bandwidth.
The method according to any one of claims 1 to 3, characterized in that the physical channel is a first side channel;

The second frequency domain bandwidth includes a frequency domain bandwidth other than the bandwidth occupied by the target transmission resource; or,

The second frequency domain bandwidth includes the frequency domain bandwidth excluding the bandwidth occupied by the target transmission resource and the protection sideband; or,

The second frequency domain bandwidth includes the frequency domain bandwidth occupied by the first side channel;

Wherein, the target transmission resources include: at least one of second sidelink transmission resources, uplink transmission resources and downlink transmission resources; the transmission directions of the second sidelink transmission resources and the first sidelink transmission resources are different, so The first sidelink transmission resource is used to transmit the first sidelink channel.
The method according to any one of claims 1 to 3, characterized in that,

The valid bits are N 1 low-order bits in the frequency domain resource indication information, and N 1 is determined based on the second frequency domain bandwidth; or,

The valid bits are N 2 high-order bits in the frequency domain resource indication information, N 2 is determined based on the second frequency domain bandwidth, and N 1 and N 2 are positive integers.
The method according to any one of claims 1 to 3, characterized in that,

The values of other bits in the frequency domain resource indication information except the valid bits are fixed values or default values.
The method according to any one of claims 1 to 3, characterized in that,

The size of the resource block group RBG within the second frequency domain bandwidth is determined based on the second frequency domain bandwidth; or,

The size of the RBG within the second frequency domain bandwidth is determined based on the first frequency domain bandwidth.
The method according to any one of claims 1 to 3, characterized in that the frequency domain resource indication information is carried in the first information domain of downlink control information.
The method according to any one of claims 1 to 3, characterized in that, the method further includes:

Determine frequency domain resources of the physical channel based on the frequency domain resource indication information.
The method according to any one of claims 1 to 3, characterized in that, the method further includes:

In repeated transmission, the second frequency domain bandwidth is determined based on the bandwidth of the physical channel corresponding to the transmission direction in the first transmission of the repeated transmission or the last transmission of the repeated transmission.
A resource indication method, characterized in that the method is executed by a network device, and the method includes:

Send frequency domain resource indication information, the frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel, the number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth, the frequency domain resource indication information The effective bits are determined based on the second frequency domain bandwidth;

Wherein, the first frequency domain bandwidth includes the second frequency domain bandwidth.
The method according to claim 13, characterized in that the first frequency domain bandwidth is the bandwidth of BWP.
The method according to claim 13, characterized in that the second frequency domain bandwidth is a bandwidth used in the corresponding transmission direction of the physical channel.
The method according to any one of claims 13 to 15, characterized in that the physical channel is a downlink channel;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by uplink transmission resources; or,

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the uplink transmission resources and guard sidebands; or,

The second frequency domain bandwidth includes the frequency domain bandwidth used for downlink transmission in the first frequency domain bandwidth.
The method according to any one of claims 13 to 15, characterized in that the physical channel is an uplink channel;

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth excluding the bandwidth occupied by downlink transmission resources; or,

The second frequency domain bandwidth includes the frequency domain bandwidth in the first frequency domain bandwidth except the bandwidth occupied by the downlink transmission resources and guard sidebands; or,

The second frequency domain bandwidth includes the frequency domain bandwidth used for uplink transmission in the first frequency domain bandwidth.
The method according to any one of claims 13 to 15, characterized in that the physical channel is a first side channel;

The second frequency domain bandwidth includes a frequency domain bandwidth other than the bandwidth occupied by the target transmission resource; or,

The second frequency domain bandwidth includes the frequency domain bandwidth excluding the bandwidth occupied by the target transmission resource and the protection sideband; or,

The second frequency domain bandwidth includes the frequency domain bandwidth occupied by the first side channel;

Wherein, the target transmission resources include: at least one of second sidelink transmission resources, uplink transmission resources and downlink transmission resources; the transmission directions of the second sidelink transmission resources and the first sidelink transmission resources are different, so The first sidelink transmission resource is used to transmit the first sidelink channel.
The method according to any one of claims 13 to 15, characterized in that

The valid bits are N 1 low-order bits in the frequency domain resource indication information, and N 1 is determined based on the second frequency domain bandwidth; or,

The valid bits are N 2 high-order bits in the frequency domain resource indication information, N 2 is determined based on the second frequency domain bandwidth, and N 1 and N 2 are positive integers.
The method according to any one of claims 13 to 15, characterized in that,

The values of other bits in the frequency domain resource indication information except the valid bits are fixed values or default values.
The method according to any one of claims 13 to 15, characterized in that

The size of the resource block group RBG within the second frequency domain bandwidth is determined based on the second frequency domain bandwidth; or,

The size of the RBG within the second frequency domain bandwidth is determined based on the first frequency domain bandwidth.
The method according to any one of claims 13 to 15, characterized in that the frequency domain resource indication information is carried in the first information domain of the downlink control information.
The method according to any one of claims 13 to 15, characterized in that the method further includes:

In repeated transmission, the second frequency domain bandwidth is determined based on a bandwidth of a transmission direction corresponding to the physical channel in a first transmission of the repeated transmission or a last transmission of the repeated transmission.
A resource indication device, characterized in that the device includes:

A receiving module, configured to receive frequency domain resource indication information, the frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel, the number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth, the The valid bits of the frequency domain resource indication information are determined based on the second frequency domain bandwidth;

Wherein, the first frequency domain bandwidth includes the second frequency domain bandwidth.
A resource indication device, characterized in that the device includes:

A sending module, configured to send frequency domain resource indication information. The frequency domain resource indication information is used to determine the frequency domain resource location of the physical channel. The number of bits of the frequency domain resource indication information is determined based on the first frequency domain bandwidth. The valid bits of the frequency domain resource indication information are determined based on the second frequency domain bandwidth;

Wherein, the first frequency domain bandwidth includes the second frequency domain bandwidth.
A communication device, characterized in that the communication device includes a processor; the processor is used to implement the resource indication as described in any one of claims 1 to 12 or 13 to 23 by executing a computer program method.
A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, and the computer program is used to be executed by a processor to implement claims 1 to 12 or claims 13 to 23 The resource indication method described in any one of the above.
A chip, characterized in that the chip includes programmable logic circuits and/or program instructions, and is used to implement claims 1 to 12 or claims 13 to 23 when the communication device installed with the chip is run. The resource indication method described in any one of the above.
A computer program product, characterized in that the computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and a processor reads and executes the computer instructions from the computer-readable storage medium , to implement the resource indication method as described in any one of claims 1 to 12 or 13 to 23.
A computer program, characterized in that the computer program includes computer instructions, and the processor of the computer device executes the computer instructions, so that the computer device executes any one of claims 1 to 12 or claims 13 to 23. The resource indication method described above.