Frequency domain resource determination method, terminal and network side equipment

Abstract

The embodiment of the invention discloses a frequency domain resource determination method, a terminal and network side equipment, and belongs to the technical field of communication, and the frequency domain resource determination method comprises the steps that the terminal receives DCI, the DCI is used for scheduling a physical transmission channel, and the terminal is configured with an SBFD sub-band; determining a frequency domain resource of the physical transmission channel based on the DCI; wherein the bit number of the FDRA domain in the DCI is determined according to the bandwidth of the BWP or the bandwidth of the SBFD sub-band.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a frequency domain resource determination method, a terminal, and a network side device. Background Art

[0002] In the related art, frequency domain resource allocation is performed in the activated bandwidth part (Band Width Part, BWP), and the number of bits of the frequency domain resource allocation (Frequency Domain Resource Assignment, FDRA) field in the downlink control information (Downlink Control Information, DCI) is determined according to the BWP bandwidth.

[0003] However, when the terminal is configured with non-overlapping subband full duplex (SBFD) subbands, uplink and downlink transmissions should be limited to the corresponding SBFD uplink subband or SBFD downlink subband in the SBFD time slot or symbol. In this case, how to determine the frequency domain resource allocation is a technical problem that needs to be solved in the related art. Summary of the invention

[0004] The embodiments of the present application provide a method for determining frequency domain resources, a terminal, and a network-side device, which can solve the problem of how to determine frequency domain resource allocation when the terminal is configured with an SBFD subband.

[0005] In a first aspect, a method for determining frequency domain resources is provided, the method comprising: a terminal receives a DCI, the DCI is used to schedule a physical transmission channel, and the terminal is configured with an SBFD subband; the frequency domain resources of the physical transmission channel are determined based on the DCI; wherein the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0006] In a second aspect, a method for determining frequency domain resources is provided, the method comprising: a network side device sends a DCI; wherein the DCI is used by a terminal to determine the frequency domain resources of a physical transmission channel scheduled by the DCI, the terminal is configured with an SBFD subband, and the number of bits of the FDRA domain in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0007] According to a third aspect, a frequency domain resource determination device is provided, which is applied to a terminal and includes: a receiving module for receiving DCI, wherein the DCI is used to schedule a physical transmission channel, and the terminal is configured with an SBFD subband; a determination module for determining the frequency domain resources of the physical transmission channel based on the DCI; wherein the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0008] In a fourth aspect, a frequency domain resource determination device is provided, comprising: a sending module for sending DCI; wherein the DCI is used by a terminal to determine the frequency domain resources of a physical transmission channel scheduled by the DCI, the terminal is configured with an SBFD subband, and the number of bits of the FDRA domain in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0009] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0010] In the sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive DCI, the DCI is used to schedule a physical transmission channel, and the terminal is configured with an SBFD subband; the processor is used to determine the frequency domain resources of the physical transmission channel based on the DCI; wherein the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0011] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0012] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to send DCI; wherein the DCI is used by the terminal to determine the frequency domain resources of the physical transmission channel scheduled by the DCI, the terminal is configured with an SBFD subband, and the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0013] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0014] In the tenth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0015] In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0016] In the twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0017] In an embodiment of the present application, a terminal configured with an SBFD subband receives DCI, which is used to schedule a physical transmission channel. The terminal determines the frequency domain resources of the physical transmission channel based on the DCI. Since the number of bits in the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband, the configuration of the terminal can match the number of bits in the FDRA field in the DCI, so that the terminal can determine the frequency domain resources of the physical transmission channel and improve communication performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0019] Figure 2 is a schematic flow chart of a method for determining frequency domain resources according to an embodiment of the present application;

[0020] Figure 3 is a schematic flow chart of a method for determining frequency domain resources according to an embodiment of the present application;

[0021] Figure 4 is a specific application schematic diagram according to an embodiment of the present application;

[0022] Figure 5 is a structural diagram of a frequency domain resource determination device according to an embodiment of the present application;

[0023] Figure 6 is a structural diagram of a frequency domain resource determination device according to an embodiment of the present application;

[0024] Figure 7 is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0025] Figure 8 is a schematic diagram of the structure of a terminal according to an embodiment of the present application;

[0026] Fig. 9 It is a schematic diagram of the structure of a network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0028] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0029] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0030] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0031] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0032] The frequency domain resource determination method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0033] like Figure 2 As shown, an embodiment of the present application provides a frequency domain resource determination method 200, which can be executed by a terminal. In other words, the method can be executed by software or hardware installed in the terminal, and the method includes the following steps.

[0034] S202: The terminal receives downlink control information (Downlink Control Information, DCI), where the DCI is used to schedule a physical transmission channel, and the terminal is configured with a sub-band full-duplex (SubBand Full Duplex, SBFD) sub-band.

[0035] Optionally, the format of the DCI may include DCI 0_1, DCI 0_2, DCI 1_1 or DCI 1_2, etc. The above-mentioned physical transmission channel may include a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), etc.

[0036] The terminal mentioned in this embodiment is configured with an SBFD subband, and the SBFD refers to non-overlapping SBFD, which means that the network side device or the terminal can simultaneously receive and transmit on the subband where the frequency domain resources do not overlap. It may include SBFD on the base station side, for example, the network side device works in SBFD mode, the terminal side works in half-duplex mode (that is, the terminal side only performs downlink reception or uplink transmission at a certain time), or full-duplex on the terminal side, at which time the network side device and the terminal both work in SBFD mode, that is, the network side device and the terminal can simultaneously receive and transmit on different frequency resources. It can also be said that the terminal is enabled for SBFD operation, or is configured with SBFD time slots or symbols, etc., wherein the SBFD subband may include an SBFD uplink subband and an SBFD downlink subband.

[0037] For SBFD downlink subband (DL subband) or uplink subband (UL subband) configuration, for example, the network side device can directly explicitly configure the SBFD DL subband or UL subband for the terminal, or the network side device configures the guard band for the terminal, and the terminal implicitly determines the SBFD DL subband or UL subband, for example, the terminal determines the SBFD DL subband or UL subband configuration according to the BWP configuration and the guard band. This application is not limited to this.

[0038] S204: Determine the frequency domain resources of the physical transmission channel based on the DCI; wherein the number of bits of the frequency domain resource allocation (Frequency Domain Resource Assignment, FDRA) field in the DCI is determined according to the bandwidth of the bandwidth part (BandWidth Part, BWP) or the bandwidth of the SBFD subband.

[0039] Optionally, determining the frequency domain resources of the physical transmission channel based on the DCI may include: determining the granularity of frequency domain allocation based on the time domain resources where the physical transmission channel scheduled by the DCI is located; after the terminal determines the granularity of frequency domain allocation, the specific location of the frequency domain resources of the physical transmission channel may be further determined.

[0040] The granularity of the frequency domain allocation may be K consecutive resource blocks (RBs), wherein the FDRA field is composed of a resource indication value (RIV), and the RIV corresponds to a starting RB and a consecutively allocated RB length. Alternatively, the granularity of the frequency domain allocation may also be the size of a resource block group (RBG), and this example is applicable to frequency domain resource allocation with RBG as the granularity.

[0041] The RB mentioned in this embodiment may be a physical resource block (PRB) or a virtual resource block (VRB).

[0042] In the frequency domain resource determination method provided in the embodiment of the present application, a terminal configured with an SBFD subband receives DCI, which is used to schedule a physical transmission channel. The terminal determines the frequency domain resources of the physical transmission channel based on the DCI. Since the number of bits in the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband, the configuration of the terminal can be matched with the number of bits in the FDRA field in the DCI, so that the terminal can determine the frequency domain resources of the physical transmission channel and improve communication performance.

[0043] The frequency domain resource determination method provided in the embodiment of the present application determines the number of bits in the FDRA domain according to the SBFD subband. Compared with determining the number of FDRA bits according to the BWP bandwidth, this can reduce the DCI size, increase the reliability of DCI transmission, or reduce the control information load.

[0044] The frequency domain resource determination method provided in the embodiment of the present application determines the number of bits in the FDRA domain according to the BWP bandwidth, which can avoid the problem of not being able to indicate all frequency domain resources due to insufficient number of bits in the FDRA domain, and increase the reliability of DCI transmission.

[0045] The frequency domain resource determination method provided in the embodiment of the present application can determine the frequency domain resources allocated to the terminal according to the FDRA indication, so that the terminal can transmit the physical transmission channel and improve the communication performance.

[0046] The number of bits of the FDRA field mentioned above can be determined according to the BWP bandwidth or the bandwidth of the SBFD subband, and the following will be described in two cases respectively.

[0047] Case 1: The number of bits in the FDRA field is determined according to the BWP bandwidth.

[0048] Case 1: Determining the number of bits in the FDRA domain according to the BWP bandwidth can avoid the problem of not being able to indicate all frequency domain resources due to insufficient number of bits in the FDRA domain, thereby increasing the reliability of DCI transmission.

[0049] For DCI 0_0 or DCI 1_0 in the UE Specific Search Space (USS), the DCI size is based on the initial BWP (size is ) is OK, but applies to another active BWP (size ),and The type 1 resource allocation domain consists of a RIV, where the RIV corresponds to a starting RB. and a length in terms of virtually contiguously allocated resource block K can be determined according to the following two examples. If the cell is configured with a control resource set (ControlResource SET, CORESET) 0, then Indicates the size of CORESET 0. If the cell is not configured with CORESET 0, is the size of the initial BWP.

[0050] In one example, the granularity of the frequency domain allocation is K continuous RBs, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, K is the number of RBs in the first set that satisfies The maximum value of:

[0051] 1) The time domain unit is a non-SBFD time domain unit.

[0052] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0053] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0054] 4) The starting time domain unit is a non-SBFD time domain unit.

[0055] 5) The end time domain unit is a non-SBFD time domain unit.

[0056] The first set includes a plurality of different predefined values, for example, the first set is {1, 2, 4, 8}; is the number of RBs included in the activated BWP, is the number of RBs contained in the initial BWP.

[0057] It should be noted that the time domain unit mentioned in each example of the present application may be a time slot or a symbol, etc.; the non-SBFD time domain unit may be a time domain unit other than the SBFD time domain unit.

[0058] In one example, the granularity of the frequency domain allocation is K consecutive RBs, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, K is the number of RBs in the first set that satisfies The maximum value of:

[0059] 1) The time domain unit is the SBFD time domain unit.

[0060] 2) The time domain unit overlaps with the SBFD time domain unit.

[0061] 3) The time domain unit does not overlap with the non-SBFD time domain unit.

[0062] 4) The starting time domain unit is the SBFD time domain unit.

[0063] 5) The end time domain unit is the SBFD time domain unit.

[0064] The first set includes a plurality of different predefined values, for example, the first set is {1, 2, 4, 8}; N subband is the number of RBs contained in the SBFD subband, is the number of RBs contained in the initial BWP.

[0065] For DCI 1_0, For DCI 0_0,

[0066] In particular, if Then K = 1, where RIV corresponds to a starting RB, RB start =0,K,2K,…,(N subband -1) and a length in terms of virtually contiguously allocated resource block L RBs ≥1, and L RBs ≤N subband .

[0067] This embodiment determines the granularity of frequency domain allocation according to the SBFD subband, and improves the granularity of resource allocation without changing the DCI size, which is beneficial to improving the flexibility of frequency allocation and system performance.

[0068] For DCI formats that support type 1 resource allocation with RBG granularity, such as DCI 1_2 or DCI 0_2, the type 1 resource allocation field consists of a RIV, where the RIV corresponds to a starting RBG. and a length in terms of virtually contiguously allocated resource block group Here, RBG is defined as a continuous virtual resource block group, and its size P can be determined according to the following two examples.

[0069] In one example, the granularity of the frequency domain allocation is the size of a resource block group (RBG), and when the time domain resource where the physical transmission channel is located satisfies at least one of the following, the size P of the RBG is determined according to a high-level parameter configuration:

[0070] 1) The time domain unit is a non-SBFD time domain unit.

[0071] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0072] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0073] 4) The starting time domain unit is a non-SBFD time domain unit.

[0074] 5) The end time domain unit is a non-SBFD time domain unit.

[0075] The high-level parameters in this example include, for example, resource allocation type 1 granularity DCI-1-2 (resourceAllocationType1GranularityDCI-1-2), or resource allocation type 1 granularity DCI-0-2 (resourceAllocationType1GranularityDCI-0-2). For example, for DCI 1_2, the parameter resourceAllocationType1GranularityDCI-1-2 is used to configure, and for DCI 0_2, the parameter resourceAllocationType1GranularityDCI-0-2 is used to configure.

[0076] In one example, the granularity of the frequency domain allocation is the size of the RBG. When the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, if the first condition is met, the size P of the RBG is 1; if the first condition is not met, the size P of the RBG is based on Nsubbaλnd and Sure:

[0077] 1) The time domain unit is the SBFD time domain unit.

[0078] 2) The time domain unit overlaps with the SBFD time domain unit.

[0079] 3) The time domain unit does not overlap with the non-SBFD time domain unit.

[0080] 4) The starting time domain unit is the SBFD time domain unit.

[0081] 5) The end time domain unit is the SBFD time domain unit.

[0082] Among them, the first condition is The number of RBGs contained in the activated BWP or the number of bits in the FDRA field in the DCI, for example, is the bandwidth of BWP numbered i, N subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

[0083] In the inequality of the first condition, the right side of the inequality represents the number of bits required for type 1 resource allocation in units of RB. If the number of FDRA bits in the DCI is greater than or equal to the required number, the granularity is 1 RB; otherwise, it is multiple RBs.

[0084] Optionally, when the first condition is not met, the size P of the RBG is: wherein the second set includes multiple different predefined values, for example, the second set is {2,4,8,16}; P0 is determined according to the high-level parameter configuration.

[0085] Or the size P of the RBG is: wherein the second set includes multiple different predefined values, for example, the second set is {2,4,8,16}; P0 is determined according to the high-level parameter configuration.

[0086] The high-level parameters in this example include, for example, resource allocation type 1 granularity DCI-1-2 (resourceAllocationType1GranularityDCI-1-2), or resource allocation type 1 granularity DCI-0-2 (resourceAllocationType1GranularityDCI-0-2). For example, for DCI 1_2, the parameter resourceAllocationType1GranularityDCI-1-2 is configured, and for DCI 0_2, the parameter resourceAllocationType1GranularityDCI-0-2 is configured.

[0087] This embodiment determines the granularity of frequency domain allocation according to the SBFD subband, and improves the granularity of resource allocation without changing the DCI size, which is beneficial to improving the flexibility of frequency allocation and system performance.

[0088] Case 2: The number of bits in the FDRA field may be determined according to the bandwidth of the SBFD subband.

[0089] For example, the number of bits of the FDRA domain in the DL DCI (for example, at least one of DCI 1_0, DCI1-1, and DCI 1_2) is determined according to the downlink subband (DL subband) bandwidth configured by SBFD, and the number of bits of the FDRA domain in the UL DCI (for example, at least one of DCI 0_0, DCI 0-1, and DCI 0_2) is determined according to the uplink subband (UL subband) bandwidth configured by SBFD.

[0090] Optionally, the number of bits in the FDRA field in the DCI is equal to the number of RBGs contained in the SBFD subband.

[0091] This embodiment determines the number of bits of the FDRA domain according to the SBFD subband. Compared with determining the number of FDRA bits according to the BWP, the DCI size can be reduced, the reliability of DCI transmission can be increased, or the control information load can be reduced.

[0092] In one example, the number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 0 resource allocation, the method further includes: determining at least one of the following items according to the bandwidth of the SBFD subband: 1) RBG size, 2) the number of RBGs contained in the SBFD subband.

[0093] In other examples, the RBG size may be a high-level signaling configuration. For example, the network side device is configured in {configuration1, configuration2} through high-level signaling, and the terminal determines the RBG size based on the high-level configuration and a predefined table (the table defines the mapping relationship between the subband bandwidth size and the RBG size, as shown in Table 1 below).

[0094] Table 1: RBG size P

[0095]

[0096] In one example, the number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 1 resource allocation, the number of bits of the FDRA field in the DCI is equal to N subband Indicates the number of RBs included in the SBFD subband.

[0097] In one example, the method further includes: determining the granularity of resource allocation based on the activated BWP and the bandwidth of the SBFD subband when the time domain unit where the physical transmission channel is located satisfies at least one of the following:

[0098] 1) The time domain unit is a non-SBFD time domain unit.

[0099] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0100] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0101] 4) The starting time domain unit is a non-SBFD time domain unit.

[0102] 5) The end time domain unit is a non-SBFD time domain unit.

[0103] Optionally, the granularity of the frequency domain allocation is K consecutive RBs, where K is: The maximum value of: wherein the first set includes multiple different predefined values, for example, the first set is {1, 2, 4, 8}; N subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

[0104] For example, when the terminal is configured with type 1 resource allocation, the number of bits of FDRA is equal to N subbandIndicates the number of RBs contained in the SBFD subband. When the PDSCH or PUSCH scheduled by the DCI satisfies any of the conditions 1) to 5) above, the resource allocation domain consists of a RIV, where the RIV corresponds to a starting RB. and a continuously allocated RB length Where K is the maximum value in the set {1,2,4,8} and satisfies

[0105] Optionally, the granularity of the frequency domain allocation is the size of an RBG. When the terminal is configured with type 0 resource allocation, P is: The minimum value of is the number of RBs included in the activated BWP, is the number of RBGs contained in the SBFD subband (for example, the number of RBGs determined after the RBG size is determined according to the high-level configuration and the predefined table), P0 is determined according to the high-level parameter configuration, and the second set includes multiple different predefined values, for example, the second set is {2, 4, 8, 16}.

[0106] In this example, except for the first RBG and the last RBG in the physical channel resource, the size of other RBGs is P. The size of the first RBG of the physical channel resource If the second condition is met, the size of the last RBG of the physical channel resource If the second condition is not met, the size of the last RBG of the physical channel resource is P; wherein the second condition is in, The size of the starting BWP, is the size of BWP numbered i.

[0107] Optionally, in each of the above embodiments, before the terminal receives the DCI, the method further includes: the terminal receives indication information, the indication information being used to indicate that the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0108] For example, the network side device configures the terminal through high-layer signaling, using the above-mentioned method of case 1 or case 2. Each embodiment of the present application is applicable to at least one of the following DCI formats: DCI 0_1, DCI 0_2, DCI 1_1, DCI 1_2.

[0109] Combination of the above Figure 2 The frequency domain resource determination method according to the embodiment of the present application is described in detail. Figure 3A frequency domain resource determination method according to another embodiment of the present application is described in detail. It can be understood that the interaction between the network side device and the terminal described by the network side device is Figure 2 The descriptions on the terminal side in the methods shown are the same or corresponding, and to avoid repetition, the relevant descriptions are appropriately omitted.

[0110] Figure 3 FIG. 1 is a schematic diagram of a method for determining frequency domain resources according to an embodiment of the present application, which can be applied to network side devices. Figure 3 As shown, the method 300 includes the following steps.

[0111] S302: The network side device sends DCI; wherein, the DCI is used by the terminal to determine the frequency domain resources of the physical transmission channel scheduled by the DCI, the terminal is configured with an SBFD subband, and the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0112] In the frequency domain resource determination method provided in the embodiment of the present application, a network side device sends a DCI, and the DCI is used by the terminal to determine the frequency domain resources of the physical transmission channel scheduled by the DCI. The terminal is configured with an SBFD subband. Since the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband, the configuration of the terminal can match the number of bits of the FDRA field in the DCI, so that the terminal can determine the frequency domain resources of the physical transmission channel and improve communication performance.

[0113] Optionally, as an embodiment, the DCI is used by the terminal to determine the granularity of frequency domain allocation based on the time domain resources where the physical transmission channel is located.

[0114] Optionally, as an embodiment, the granularity of the frequency domain allocation is K continuous RBs, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following, K is: The maximum value of:

[0115] 1) The time domain unit is a non-SBFD time domain unit.

[0116] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0117] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0118] 4) The starting time domain unit is a non-SBFD time domain unit.

[0119] 5) The end time domain unit is a non-SBFD time domain unit.

[0120] wherein the first set includes a plurality of different predefined values; is the number of RBs included in the activated BWP, is the number of RBs contained in the initial BWP.

[0121] Optionally, as an embodiment, the granularity of the frequency domain allocation is K consecutive RBs, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following, K is: The maximum value of:

[0122] 1) The time domain unit is the SBFD time domain unit.

[0123] 2) The time domain unit overlaps with the SBFD time domain unit.

[0124] 3) The time domain unit does not overlap with the non-SBFD time domain unit.

[0125] 4) The starting time domain unit is the SBFD time domain unit.

[0126] 5) The end time domain unit is the SBFD time domain unit.

[0127] Wherein, the first set includes a plurality of different predefined values; N subband is the number of RBs contained in the SBFD subband, is the number of RBs contained in the initial BWP.

[0128] Optionally, as an embodiment, the granularity of the frequency domain allocation is the size of an RBG, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following, the size P of the RBG is determined according to a high-level parameter configuration:

[0129] 1) The time domain unit is a non-SBFD time domain unit.

[0130] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0131] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0132] 4) The starting time domain unit is a non-SBFD time domain unit.

[0133] 5) The end time domain unit is a non-SBFD time domain unit.

[0134] Optionally, as an embodiment, the granularity of the frequency domain allocation is the size of RBG. When the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, if the first condition is met, the size P of the RBG is 1; if the first condition is not met, the size P of the RBG is based on N subband and Sure:

[0135] 1) The time domain unit is the SBFD time domain unit.

[0136] 2) The time domain unit overlaps with the SBFD time domain unit.

[0137] 3) The time domain unit does not overlap with the non-SBFD time domain unit.

[0138] 4) The starting time domain unit is the SBFD time domain unit.

[0139] 5) The end time domain unit is the SBFD time domain unit.

[0140] Among them, the first condition is N is the number of RBGs contained in the activated BWP or the number of bits in the FDRA field in the DCI. subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

[0141] Optionally, as an embodiment, when the first condition is not met, the size P of the RBG is: wherein the second set includes multiple different predefined values; P0 is determined according to the high-level parameter configuration.

[0142] Optionally, as an embodiment, the number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 0 resource allocation, the number of bits of the FDRA field in the DCI is equal to the number of RBGs contained in the SBFD subband.

[0143] Optionally, as an embodiment, the terminal is further used to determine at least one of the following items according to the bandwidth of the SBFD sub-band: RBG size, and the number of RBGs contained in the SBFD sub-band.

[0144] Optionally, as an embodiment, the number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 1 resource allocation, the number of bits of the FDRA field in the DCI is equal to N subband Indicates the number of RBs included in the SBFD subband.

[0145] Optionally, as an embodiment, when the time domain unit where the physical transmission channel is located satisfies at least one of the following conditions, the terminal is further configured to determine the granularity of resource allocation based on the activated BWP and the bandwidth of the SBFD subband:

[0146] 1) The time domain unit is a non-SBFD time domain unit.

[0147] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0148] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0149] 4) The starting time domain unit is a non-SBFD time domain unit.

[0150] 5) The end time domain unit is a non-SBFD time domain unit.

[0151] Optionally, as an embodiment, the granularity of the frequency domain allocation is K consecutive RBs, where K is: wherein the first set includes a plurality of different predefined values; N subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

[0152] Optionally, as an embodiment, the granularity of the frequency domain allocation is the size of RBG, and P is: The minimum value of; wherein the second set includes a plurality of different predefined values; is the number of RBs included in the activated BWP, is the number of RBGs included in the SBFD subband, and P0 is determined according to high-level parameter configuration.

[0153] Optionally, as an embodiment, before the network side device sends the DCI, the method further includes: the network side device sends indication information, and the indication information is used to indicate that the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0154] To illustrate in detail the frequency domain resource determination method provided in the embodiments of the present application, several specific embodiments will be described below.

[0155] like Figure 4 As shown, the base station configures SBFD downlink subband and uplink subband in downlink time slot 2 (DL slot 2), where the subband distribution is DUD (D for downlink, U for uplink), that is, the uplink subband is between the downlink subbands. Time slot 1 (slot 1) and time slot 3 (slot 3) are still configured as traditional TDD DL slot and UL slot.

[0156] like Figure 4As shown, DCI 1 schedules PDSCH1 to be transmitted in downlink slot 1 (DL slot 1); DCI2 schedules PDSCH 2 to be transmitted in slot 2 configured with SBFD; DCI3 schedules PUSCH1 to be transmitted in slot 2 configured with SBFD; and DCI 4 schedules PUSCH2 to be transmitted in UL slot 3.

[0157] Assume that DCI1 and DCI2 are DCI 1_0 and are transmitted in the USS, and their DCI sizes are aligned with the DCI format 1_0 in the CSS, that is, the number of bits of the FDRA field is determined according to the initial downlink BWP (initial DL BWP).

[0158] For DCI 1, the scheduled PDSCH1 is in the non-SBFD slot. The terminal determines the granularity of frequency domain resource allocation according to the active DL BWP bandwidth, that is, its RIV corresponds to a starting RB and a continuously allocated RB length Where K is the maximum value in the set {1,2,4,8} and needs to satisfy

[0159] For DCI 2, its scheduled PDSCH2 is transmitted in the DL subband of the SBFD slot, and the frequency domain allocation granularity is determined according to the DL subband bandwidth, that is, its RIV corresponds to a starting RB and a continuously allocated RB length Among them, K is the maximum value in the set {1,2,4,8} and needs to satisfy

[0160] Assume that DCI3 and DCI4 are DCI 0_0 and are transmitted in USS, and their DCI sizes are aligned with DCI 0_0 in CSS, that is, the FDRA field is determined according to the initial UL BWP.

[0161] For DCI 3, the scheduled PUSCH1 is transmitted in the UL subband of the SBFD slot. The UE determines the granularity of frequency domain resource allocation based on the UL subband bandwidth, that is, its RIV corresponds to a starting RB and a continuously allocated RB length Where K is the maximum value in the set {1,2,4,8} and needs to satisfy

[0162] For DCI 4, the scheduled PUSCH2 is transmitted in the non-SBFD slot, and the frequency domain allocation granularity is determined according to the UL active BWP bandwidth, that is, its RIV corresponds to a starting RB and a continuously allocated RB length Where K is the maximum value in the set {1,2,4,8} and needs to satisfy

[0163] Assume that the UE downlink resource allocation is configured as type 1 resource allocation, and DCI 1_2 is configured with type 1 resource allocation of RBG granularity, that is, the parameter resourceAllocationType1GranularityDCI-1-2 is configured (for example, its value can be one of 2, 4, 8, 16).

[0164] For DCI 1, the scheduled PDSCH1 is in the non-SBFD slot. The UE determines the granularity of frequency domain resource allocation according to the configuration of resourceAllocationType1GranularityDCI-1-2, that is, its RIV corresponds to a starting RBG and a continuously allocated RBG length L RBGs =1,…, RBG is defined as a continuous virtual resource block, and its size P (the number of VRBs included) is determined according to the resourceAllocationType1GranularityDCI-1-2 configuration.

[0165] For DCI 2, its scheduled PDSCH2 is transmitted in the DL subband of the SBFD slot, and the frequency domain allocation granularity is determined according to the DL subband bandwidth, that is, its RIV corresponds to a starting RBG and a contiguously allocated RBG length Among them if Then P=1, otherwise according to and For example, P is the minimum value among {2,4,8,16}, and P needs to satisfy P0 is determined based on high-level parameters, such as resourceAllocationType1GranularityDCI-1-2.

[0166] Assume that the UE uplink resource allocation is configured as type 1 resource allocation, and DCI 0_2 is configured with type 1 resource allocation of RBG granularity, that is, the parameter resourceAllocationType1GranularityDCI-0-2 is configured.

[0167] For DCI 3, the scheduled PUSCH1 is in the SBFD slot, and the frequency domain allocation granularity is determined according to the UL subband bandwidth, that is, its RIV corresponds to a starting RBG and a contiguously allocated RBG length if Then P = 1, otherwise according to and For example, P is the minimum value among {2,4,8,16}, and P satisfies P0 is determined based on high-level parameter configuration, such as resourceAllocationType1GranularityDCI-0-2.

[0168] For DCI4, the scheduled PUSCH2 is transmitted in the non-SBFD slot, and the frequency domain allocation granularity is determined according to the high-level configuration, that is, its RIV corresponds to a starting RBG and a contiguously allocated RBG length RBG is defined as a continuous virtual resource block, and its size P (the number of VRBs included) is determined according to the resourceAllocationType1GranularityDCI-0-2 configuration.

[0169] The frequency domain resource determination method provided in the embodiment of the present application may be executed by a frequency domain resource determination device. In the embodiment of the present application, the frequency domain resource determination device performing the frequency domain resource determination method is taken as an example to illustrate the frequency domain resource determination device provided in the embodiment of the present application.

[0170] Figure 5 is a schematic diagram of the structure of a frequency domain resource determination device according to an embodiment of the present application, and the device may correspond to a terminal in other embodiments. Figure 5 As shown, the device 500 includes the following modules.

[0171] The receiving module 502 is configured to receive DCI, where the DCI is used to schedule a physical transmission channel, and the terminal is configured with an SBFD subband.

[0172] The determination module 504 is used to determine the frequency domain resources of the physical transmission channel based on the DCI; wherein the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0173] In an embodiment of the present application, a terminal configured with an SBFD subband receives DCI, which is used to schedule a physical transmission channel. The terminal determines the frequency domain resources of the physical transmission channel based on the DCI. Since the number of bits in the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband, the configuration of the terminal can match the number of bits in the FDRA field in the DCI, so that the terminal can determine the frequency domain resources of the physical transmission channel and improve communication performance.

[0174] Optionally, the determination module 504 is used to determine the granularity of frequency domain allocation based on the time domain resources where the physical transmission channel scheduled by the DCI is located.

[0175] In one example, the granularity of the frequency domain allocation is K consecutive resource blocks RB, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, K is the number of consecutive resource blocks RB in the first set. The maximum value of:

[0176] 1) The time domain unit is a non-SBFD time domain unit.

[0177] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0178] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0179] 4) The starting time domain unit is a non-SBFD time domain unit.

[0180] 5) The end time domain unit is a non-SBFD time domain unit.

[0181] The first set includes a plurality of different predefined values, for example, the first set is {1, 2, 4, 8}; is the number of RBs included in the activated BWP, is the number of RBs contained in the initial BWP.

[0182] It should be noted that the time domain unit mentioned in each example of the present application may be a time slot or a symbol, etc. The non-SBFD time domain unit may be a time domain unit other than the SBFD time domain unit.

[0183] In one example, the granularity of the frequency domain allocation is K consecutive RBs, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, K is the number of RBs in the first set that satisfies The maximum value of:

[0184] 1) The time domain unit is the SBFD time domain unit.

[0185] 2) The time domain unit overlaps with the SBFD time domain unit.

[0186] 3) The time domain unit does not overlap with the non-SBFD time domain unit.

[0187] 4) The starting time domain unit is the SBFD time domain unit.

[0188] 5) The end time domain unit is the SBFD time domain unit.

[0189] The first set includes a plurality of different predefined values, for example, the first set is {1, 2, 4, 8}; N subband is the number of RBs contained in the SBFD subband, is the number of RBs contained in the initial BWP.

[0190] For DCI 1_0, For DCI 0_0,

[0191] For DCI formats that support type 1 resource allocation with RBG granularity, such as DCI 1_2 or DCI 0_2, the type 1 resource allocation field consists of a RIV, where the RIV corresponds to a starting RBG. and a length in terms of virtually contiguously allocated resource block group Here, RBG is defined as a continuous virtual resource block, and its size P is determined according to the following two examples.

[0192] In one example, the granularity of the frequency domain allocation is the size of a resource block group (RBG), and when the time domain resource where the physical transmission channel is located satisfies at least one of the following, the size P of the RBG is determined according to a high-level parameter configuration:

[0193] 1) The time domain unit is a non-SBFD time domain unit.

[0194] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0195] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0196] 4) The starting time domain unit is a non-SBFD time domain unit.

[0197] 5) The end time domain unit is a non-SBFD time domain unit.

[0198] The high-level parameters in this example include, for example, resource allocation type 1 granularity DCI-1-2 (resourceAllocationType1GranularityDCI-1-2), or resource allocation type 1 granularity DCI-0-2 (resourceAllocationType1GranularityDCI-0-2), etc.

[0199] In one example, the granularity of the frequency domain allocation is the size of the RBG. When the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, if the first condition is met, the size P of the RBG is 1; if the first condition is not met, the size P of the RBG is based on N subband and Sure:

[0200] 1) The time domain unit is the SBFD time domain unit.

[0201] 2) The time domain unit overlaps with the SBFD time domain unit.

[0202] 3) The time domain unit does not overlap with the non-SBFD time domain unit.

[0203] 4) The starting time domain unit is the SBFD time domain unit.

[0204] 5) The end time domain unit is the SBFD time domain unit.

[0205] Among them, the first condition is N is the number of RBGs contained in the activated BWP or the number of bits in the FDRA field in the DCI. subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

[0206] In the inequality of the first condition, the right side of the inequality represents the number of bits required for resource allocation in units of RB. If the number of FDRA bits in the DCI is greater than or equal to the required number, the granularity is 1 RB; otherwise, it is multiple RBs.

[0207] Optionally, when the first condition is not met, the size P of the RBG is: wherein the second set includes multiple different predefined values, for example, the second set is {2,4,8,16}; P0 is determined according to the high-level parameter configuration.

[0208] The high-level parameters in this example include, for example, resource allocation type 1 granularity DCI-1-2 (resourceAllocationType1GranularityDCI-1-2), or resource allocation type 1 granularity DCI-0-2 (resourceAllocationType1GranularityDCI-0-2), etc.

[0209] Optionally, the number of bits in the FDRA field in the DCI is equal to the number of RBGs contained in the SBFD subband.

[0210] In one example, the number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 0 resource allocation, the number of bits of the FDRA field in the DCI is equal to the number of RBGs contained in the SBFD subband.

[0211] In one example, the determination module 504 is further configured to determine at least one of the following items according to the bandwidth of the SBFD subband: 1) RBG size, 2) the number of RBGs included in the SBFD subband.

[0212] In other examples, the RBG size may be a high-level signaling configuration. For example, the network-side device is configured in {configuration1, configuration2} through high-level signaling, and the terminal configures the RBG size according to the high-level configuration and a predefined table (the table defines a mapping relationship between the subband bandwidth size and the RBG size.

[0213] The number of RBGs contained in a subband can be determined based on Among them, the size of the first RBG is The size of the last RBG is: if but Otherwise, it is P; the size of other RBGs is P; where Indicates the number of the subband starting position RB (for example, the number relative to a predefined starting position, such as relative to common RB 0).

[0214] In one example, the number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 1 resource allocation, the number of bits of the FDRA field in the DCI is equal to N subband Indicates the number of RBs included in the SBFD subband.

[0215] In an example, the determination module 504 is further configured to determine the granularity of resource allocation based on the activated BWP and the bandwidth of the SBFD subband when the time domain unit where the physical transmission channel is located satisfies at least one of the following conditions:

[0216] 1) The time domain unit is a non-SBFD time domain unit.

[0217] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0218] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0219] 4) The starting time domain unit is a non-SBFD time domain unit.

[0220] 5) The end time domain unit is a non-SBFD time domain unit.

[0221] Optionally, the granularity of the frequency domain allocation is K consecutive RBs, where K is: The maximum value of: wherein the first set includes multiple different predefined values, for example, the first set is {1, 2, 4, 8}; N subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

[0222] For example, when the terminal is configured with type 1 resource allocation, the number of bits of FDRA is equal to N subband Indicates the number of RBs contained in the SBFD subband. When the PDSCH or PUSCH scheduled by the DCI satisfies any of the conditions 1) to 5) above, the resource allocation domain consists of a RIV, where the RIV corresponds to a starting RB. and a continuously allocated RB length Where K is the maximum value in the set {1,2,4,8} and satisfies

[0223] Optionally, the granularity of the frequency domain allocation is the size of RBG, and P is: The minimum value of is the number of RBs included in the activated BWP, is the number of RBGs included in the SBFD subband, P0 is determined according to a high-level parameter configuration, and the second set includes multiple different predefined values, for example, the second set is {2, 4, 8, 16}.

[0224] In this example, except for the first RBG and the last RBG in the physical channel resource, the size of other RBGs is P. The size of the first RBG of the physical channel resource If the second condition is met, the size of the last RBG of the physical channel resource If the second condition is not met, the size of the last RBG of the physical channel resource is P; wherein the second condition is in Indicates the bandwidth of BWPi (the number of RBs included), Indicates that BWPi starts at common RB 0 relative to common RB 0.

[0225] Optionally, in each of the above embodiments, the receiving module 502 is further used to receive indication information, where the indication information is used to indicate that the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD sub-band.

[0226] For example, the network side device configures the terminal through high-layer signaling, using the above-mentioned method of case 1 or case 2. Each embodiment of the present application is applicable to at least one of the following DCI formats: DCI 0_1, DCI 0_2, DCI 1_1, DCI 1_2.

[0227] According to the device 500 of the embodiment of the present application, the process of the method 200 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 500 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes in the method 200, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0228] The frequency domain resource determination device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include but is not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0229] Figure 6 is a schematic diagram of the structure of a frequency domain resource determination device according to an embodiment of the present application, and the device may correspond to a network side device in other embodiments. Figure 6 As shown, the device 600 includes the following modules.

[0230] The sending module 602 is used to send DCI; wherein the DCI is used by the terminal to determine the frequency domain resources of the physical transmission channel scheduled by the DCI, the terminal is configured with an SBFD subband, and the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0231] In an embodiment of the present application, a sending module sends a DCI, which is used by a terminal to determine the frequency domain resources of a physical transmission channel scheduled by the DCI. The terminal is configured with an SBFD subband. Since the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband, the configuration of the terminal can match the number of bits of the FDRA field in the DCI, so that the terminal can determine the frequency domain resources of the physical transmission channel and improve communication performance.

[0232] Optionally, as an embodiment, the DCI is used by the terminal to determine the granularity of frequency domain allocation based on the time domain resources where the physical transmission channel is located.

[0233] Optionally, as an embodiment, the granularity of the frequency domain allocation is K continuous RBs, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following, K is: The maximum value of:

[0234] 1) The time domain unit is a non-SBFD time domain unit.

[0235] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0236] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0237] 4) The starting time domain unit is a non-SBFD time domain unit.

[0238] 5) The end time domain unit is a non-SBFD time domain unit.

[0239] wherein the first set includes a plurality of different predefined values; is the number of RBs included in the activated BWP, is the number of RBs contained in the initial BWP.

[0240] Optionally, as an embodiment, the granularity of the frequency domain allocation is K consecutive RBs, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following, K is: The maximum value of:

[0241] 1) The time domain unit is the SBFD time domain unit.

[0242] 2) The time domain unit overlaps with the SBFD time domain unit.

[0243] 3) The time domain unit does not overlap with the non-SBFD time domain unit.

[0244] 4) The starting time domain unit is the SBFD time domain unit.

[0245] 5) The end time domain unit is the SBFD time domain unit.

[0246] Wherein, the first set includes a plurality of different predefined values; N subband is the number of RBs contained in the SBFD subband, is the number of RBs contained in the initial BWP.

[0247] Optionally, as an embodiment, the granularity of the frequency domain allocation is the size of an RBG, and when the time domain resource where the physical transmission channel is located satisfies at least one of the following, the size P of the RBG is determined according to a high-level parameter configuration:

[0248] 1) The time domain unit is a non-SBFD time domain unit.

[0249] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0250] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0251] 4) The starting time domain unit is a non-SBFD time domain unit.

[0252] 5) The end time domain unit is a non-SBFD time domain unit.

[0253] Optionally, as an embodiment, the granularity of the frequency domain allocation is the size of RBG. When the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, if the first condition is met, the size P of the RBG is 1; if the first condition is not met, the size P of the RBG is based on N subband and Sure:

[0254] 1) The time domain unit is the SBFD time domain unit.

[0255] 2) The time domain unit overlaps with the SBFD time domain unit.

[0256] 3) The time domain unit does not overlap with the non-SBFD time domain unit.

[0257] 4) The starting time domain unit is the SBFD time domain unit.

[0258] 5) The end time domain unit is the SBFD time domain unit.

[0259] Among them, the first condition is N is the number of RBGs contained in the activated BWP or the number of bits in the FDRA field in the DCI. subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

[0260] Optionally, as an embodiment, when the first condition is not met, the size P of the RBG is: wherein the second set includes multiple different predefined values; P0 is determined according to the high-level parameter configuration.

[0261] Optionally, as an embodiment, the number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 0 resource allocation, the number of bits of the FDRA field in the DCI is equal to the number of RBGs contained in the SBFD subband.

[0262] Optionally, as an embodiment, the terminal is further used to determine at least one of the following items according to the bandwidth of the SBFD sub-band: RBG size, and the number of RBGs contained in the SBFD sub-band.

[0263] Optionally, as an embodiment, the number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 1 resource allocation, the number of bits of the FDRA field in the DCI is equal to N subband Indicates the number of RBs included in the SBFD subband.

[0264] Optionally, as an embodiment, when the time domain unit where the physical transmission channel is located satisfies at least one of the following conditions, the terminal is further configured to determine the granularity of resource allocation based on the activated BWP and the bandwidth of the SBFD subband:

[0265] 1) The time domain unit is a non-SBFD time domain unit.

[0266] 2) The time domain unit overlaps with the non-SBFD time domain unit.

[0267] 3) The time domain unit does not overlap with the SBFD time domain unit.

[0268] 4) The starting time domain unit is a non-SBFD time domain unit.

[0269] 5) The end time domain unit is a non-SBFD time domain unit.

[0270] Optionally, as an embodiment, the granularity of the frequency domain allocation is K consecutive RBs, where K is: wherein the first set includes a plurality of different predefined values; N subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

[0271] Optionally, as an embodiment, the granularity of the frequency domain allocation is the size of RBG, and P is: The minimum value of; wherein the second set includes a plurality of different predefined values; is the number of RBs included in the activated BWP, is the number of RBGs included in the SBFD subband, and P0 is determined according to high-level parameter configuration.

[0272] Optionally, as an embodiment, the sending module 602 is further used to send indication information, where the indication information is used to indicate that the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

[0273] According to the device 600 of the embodiment of the present application, the process of the method 300 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 600 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes in the method 300, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0274] The frequency domain resource determination device provided in the embodiment of the present application can achieve Figures 2 to 4 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0275] Optional, such as Figure 7 As shown, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, and the memory 702 stores a program or instruction that can be run on the processor 701. For example, when the communication device 700 is a terminal, the program or instruction is executed by the processor 701 to implement the various steps of the above-mentioned frequency domain resource determination method embodiment, and can achieve the same technical effect. When the communication device 700 is a network side device, the program or instruction is executed by the processor 701 to implement the various steps of the above-mentioned frequency domain resource determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0276] An embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to receive DCI, the DCI is used to schedule a physical transmission channel, and the terminal is configured with an SBFD subband; the processor is used to determine the frequency domain resources of the physical transmission channel based on the DCI; wherein the number of bits in the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 8 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0277] The terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809 and at least some of the components of a processor 810.

[0278] Those skilled in the art will appreciate that the terminal 800 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 810 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 8 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0279] It should be understood that in the embodiment of the present application, the input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042, and the graphics processor 8041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes a touch panel 8071 and at least one of other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0280] In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 801 can transmit the data to the processor 810 for processing; in addition, the radio frequency unit 801 can send uplink data to the network side device. Generally, the radio frequency unit 801 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0281] The memory 809 can be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 809 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 809 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0282] The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 810.

[0283] Among them, the radio frequency unit 801 can be used to receive DCI, the DCI is used to schedule the physical transmission channel, and the terminal is configured with an SBFD subband; the processor 810 can be used to receive DCI, the DCI is used to schedule the physical transmission channel, and the terminal is configured with an SBFD subband.

[0284] In an embodiment of the present application, a terminal configured with an SBFD subband receives DCI, which is used to schedule a physical transmission channel. The terminal determines the frequency domain resources of the physical transmission channel based on the DCI. Since the number of bits in the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband, the configuration of the terminal can match the number of bits in the FDRA field in the DCI, so that the terminal can determine the frequency domain resources of the physical transmission channel and improve communication performance.

[0285] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the frequency domain resource determination method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0286] The embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is used to send DCI; wherein the DCI is used by a terminal to determine the frequency domain resources of a physical transmission channel scheduled by the DCI, the terminal is configured with an SBFD subband, and the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband. This network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network side device embodiment, and can achieve the same technical effect.

[0287] The present application embodiment also provides a network side device. Fig. 9 As shown, the network side device 900 includes: an antenna 91, a radio frequency device 92, a baseband device 93, a processor 94 and a memory 95. The antenna 91 is connected to the radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be sent and sends it to the radio frequency device 92. The radio frequency device 92 processes the received information and sends it out through the antenna 91.

[0288] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 93, which includes a baseband processor.

[0289] The baseband device 93 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig. 9As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 95 through a bus interface to call the program in the memory 95 to execute the network device operations shown in the above method embodiment.

[0290] The network side device may further include a network interface 96, which is, for example, a Common Public Radio Interface (CPRI).

[0291] The network side device 900 of the embodiment of the present application further includes: instructions or programs stored in the memory 95 and executable on the processor 94, and the processor 94 calls the instructions or programs in the memory 95 to execute Figure 6 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0292] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned frequency domain resource determination method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0293] The processor is the processor in the terminal described in the above embodiment. The readable storage medium may be non-volatile or non-transient. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0294] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned frequency domain resource determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0295] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0296] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned frequency domain resource determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0297] An embodiment of the present application also provides a frequency domain resource determination system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the frequency domain resource determination method as described above, and the network side device can be used to execute the steps of the frequency domain resource determination method as described above.

[0298] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0299] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0300] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A method for determining frequency domain resources, characterized in that: include: The terminal receives downlink control information DCI, where the DCI is used to schedule a physical transmission channel, and the terminal is configured with a sub-band full-duplex SBFD sub-band; The frequency domain resources of the physical transmission channel are determined based on the DCI; wherein the number of bits of the frequency domain resource allocation FDRA field in the DCI is determined according to the bandwidth of the bandwidth part BWP or the bandwidth of the SBFD subband.

2. The method according to claim 1, characterized in that: The determining the frequency domain resources of the physical transmission channel based on the DCI includes: The granularity of frequency domain allocation is determined based on the time domain resources where the physical transmission channel scheduled by the DCI is located.

3. The method according to claim 2, characterized in that The granularity of the frequency domain allocation is K consecutive resource blocks RB. When the time domain resources where the physical transmission channel is located meet at least one of the following conditions, K is: The maximum value of: The time domain unit is a non-SBFD time domain unit; The time domain unit where it is located overlaps with the non-SBFD time domain unit; The time domain unit does not overlap with the SBFD time domain unit; The starting time domain unit is a non-SBFD time domain unit; The end time domain unit is a non-SBFD time domain unit; wherein the first set includes a plurality of different predefined values; is the number of RBs included in the activated BWP, is the number of RBs contained in the initial BWP.

4. The method according to claim 2, characterized in that: The granularity of the frequency domain allocation is K consecutive RBs. When the time domain resources where the physical transmission channel is located meet at least one of the following conditions, K is: The maximum value of: The time domain unit is the SBFD time domain unit; The time domain unit where it is located overlaps with the SBFD time domain unit; The time domain unit does not overlap with the non-SBFD time domain unit; The starting time domain unit is the SBFD time domain unit; The end time domain unit is the SBFD time domain unit; Wherein, the first set includes a plurality of different predefined values; N subband is the number of RBs contained in the SBFD subband, is the number of RBs contained in the initial BWP.

5. The method according to claim 2, characterized in that: The granularity of the frequency domain allocation is the size of the resource block group RBG. When the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, the size P of the RBG is determined according to the high-level parameter configuration: The time domain unit is a non-SBFD time domain unit; The time domain unit where it is located overlaps with the non-SBFD time domain unit; The time domain unit does not overlap with the SBFD time domain unit; The starting time domain unit is a non-SBFD time domain unit; The end time domain unit is a non-SBFD time domain unit.

6. The method according to claim 2, characterized in that The granularity of the frequency domain allocation is the size of the RBG. When the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, if the first condition is met, the size of the RBG is P=1; if the first condition is not met, the size of the RBG is based on N subband and Sure: The time domain unit is the SBFD time domain unit; The time domain unit where it is located overlaps with the SBFD time domain unit; The time domain unit does not overlap with the non-SBFD time domain unit; The starting time domain unit is the SBFD time domain unit; The end time domain unit is the SBFD time domain unit; Among them, the first condition is N is the number of RBGs contained in the activated BWP or the number of bits in the FDRA field in the DCI. subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

7. The method according to claim 6, characterized in that If the first condition is not met, the size P of the RBG is: The minimum value of The second set includes a plurality of different predefined values; P0 is determined according to a high-level parameter configuration.

8. The method according to claim 1, characterized in that The number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 0 resource allocation, the number of bits of the FDRA field in the DCI is equal to the number of RBGs contained in the SBFD subband.

9. The method according to claim 8, characterized in that The method further comprises: At least one of the following items is determined according to the bandwidth of the SBFD subband: RBG size, and the number of RBGs contained in the SBFD subband.

10. The method according to claim 1, characterized in that The number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 1 resource allocation, the number of bits of the FDRA field in the DCI is equal to N subband Indicates the number of RBs included in the SBFD subband.

11. The method according to claim 1 or 10, characterized in that: The method further comprises: When the time domain unit where the physical transmission channel is located satisfies at least one of the following conditions, the granularity of resource allocation is determined based on the activated BWP and the bandwidth of the SBFD subband: The time domain unit is a non-SBFD time domain unit; The time domain unit where it is located overlaps with the non-SBFD time domain unit; The time domain unit does not overlap with the SBFD time domain unit; The starting time domain unit is a non-SBFD time domain unit; The end time domain unit is a non-SBFD time domain unit.

12. The method according to claim 11, characterized in that The granularity of the frequency domain allocation is K consecutive RBs, where K is: The maximum value of: Wherein, the first set includes a plurality of different predefined values; N subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

13. The method according to claim 11, characterized in that The granularity of the frequency domain allocation is the size of RBG, and P is: The minimum value of wherein the second set includes a plurality of different predefined values; is the number of RBs included in the activated BWP, is the number of RBGs included in the SBFD subband, and P0 is determined according to high-level parameter configuration.

14. The method according to any one of claims 1 to 13, characterized in that: Before the terminal receives the DCI, the method further includes: The terminal receives indication information, where the indication information is used to indicate that the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

15. A method for determining frequency domain resources, characterized in that: include: The network side device sends DCI; wherein the DCI is used by the terminal to determine the frequency domain resources of the physical transmission channel scheduled by the DCI, the terminal is configured with an SBFD subband, and the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

16. The method according to claim 15, characterized in that The DCI is used by the terminal to determine the granularity of frequency domain allocation based on the time domain resources where the physical transmission channel is located.

17. The method according to claim 16, characterized in that The granularity of the frequency domain allocation is K continuous RBs. When the time domain resources where the physical transmission channel is located meet at least one of the following conditions, K is: The maximum value of: The time domain unit is a non-SBFD time domain unit; The time domain unit where it is located overlaps with the non-SBFD time domain unit; The time domain unit does not overlap with the SBFD time domain unit; The starting time domain unit is a non-SBFD time domain unit; The end time domain unit is a non-SBFD time domain unit; wherein the first set includes a plurality of different predefined values; is the number of RBs included in the activated BWP, is the number of RBs contained in the initial BWP.

18. The method according to claim 16, characterized in that The granularity of the frequency domain allocation is K consecutive RBs. When the time domain resources where the physical transmission channel is located meet at least one of the following conditions, K is: The maximum value of: The time domain unit is the SBFD time domain unit; The time domain unit where it is located overlaps with the SBFD time domain unit; The time domain unit does not overlap with the non-SBFD time domain unit; The starting time domain unit is the SBFD time domain unit; The end time domain unit is the SBFD time domain unit; Wherein, the first set includes a plurality of different predefined values; N subband is the number of RBs contained in the SBFD subband, is the number of RBs contained in the initial BWP.

19. The method according to claim 16, characterized in that The granularity of the frequency domain allocation is the size of the RBG. When the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, the size P of the RBG is determined according to the high-level parameter configuration: The time domain unit is a non-SBFD time domain unit; The time domain unit where it is located overlaps with the non-SBFD time domain unit; The time domain unit does not overlap with the SBFD time domain unit; The starting time domain unit is a non-SBFD time domain unit; The end time domain unit is a non-SBFD time domain unit.

20. The method according to claim 16, characterized in that The granularity of the frequency domain allocation is the size of the RBG. When the time domain resource where the physical transmission channel is located satisfies at least one of the following conditions, if the first condition is met, the size of the RBG is P=1; if the first condition is not met, the size of the RBG is based on N subband and Sure: The time domain unit is the SBFD time domain unit; The time domain unit where it is located overlaps with the SBFD time domain unit; The time domain unit does not overlap with the non-SBFD time domain unit; The starting time domain unit is the SBFD time domain unit; The end time domain unit is the SBFD time domain unit; Among them, the first condition is N is the number of RBGs contained in the activated BWP or the number of bits in the FDRA field in the DCI. sibband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

21. The method according to claim 20, characterized in that If the first condition is not met, the size P of the RBG is: The minimum value of The second set includes a plurality of different predefined values; P0 is determined according to a high-level parameter configuration.

22. The method according to claim 15, characterized in that The number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 0 resource allocation, the number of bits of the FDRA field in the DCI is equal to the number of RBGs contained in the SBFD subband.

23. The method according to claim 22, characterized in that The terminal is further configured to determine at least one of the following items according to the bandwidth of the SBFD sub-band: RBG size, and the number of RBGs contained in the SBFD sub-band.

24. The method according to claim 23, characterized in that The number of bits of the FDRA field in the DCI is determined according to the bandwidth of the SBFD subband; wherein, when the terminal is configured with type 1 resource allocation, the number of bits of the FDRA field in the DCI is equal to N subband Indicates the number of RBs included in the SBFD subband.

25. The method according to claim 15 or 24, characterized in that When the time domain unit where the physical transmission channel is located satisfies at least one of the following conditions, the terminal is further configured to determine the granularity of resource allocation based on the activated BWP and the bandwidth of the SBFD subband: The time domain unit is a non-SBFD time domain unit; The time domain unit where it is located overlaps with the non-SBFD time domain unit; The time domain unit does not overlap with the SBFD time domain unit; The starting time domain unit is a non-SBFD time domain unit; The end time domain unit is a non-SBFD time domain unit.

26. The method according to claim 25, characterized in that The granularity of the frequency domain allocation is K consecutive RBs, where K is: The maximum value of Wherein, the first set includes a plurality of different predefined values; N subband is the number of RBs contained in the SBFD subband, The number of RBs included in the activated BWP.

27. The method according to claim 25, characterized in that The granularity of the frequency domain allocation is the size of RBG, and P is: The minimum value of wherein the second set includes a plurality of different predefined values; is the number of RBs included in the activated BWP, is the number of RBGs included in the SBFD subband, and P0 is determined according to high-level parameter configuration.

28. The method according to any one of claims 15 to 27, characterized in that Before the network side device sends the DCI, the method further includes: The network side device sends indication information, where the indication information is used to indicate that the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

29. A frequency domain resource determination device, applied to a terminal, characterized in that: include: A receiving module, used for receiving DCI, where the DCI is used for scheduling a physical transmission channel, and the terminal is configured with an SBFD subband; A determination module is used to determine the frequency domain resources of the physical transmission channel based on the DCI; wherein the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

30. A frequency domain resource determination device, characterized in that: include: A sending module, used for sending DCI; wherein the DCI is used by the terminal to determine the frequency domain resources of the physical transmission channel scheduled by the DCI, the terminal is configured with an SBFD subband, and the number of bits of the FDRA field in the DCI is determined according to the BWP bandwidth or the bandwidth of the SBFD subband.

31. A terminal, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 14 are implemented.

32. A network side device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 15 to 28 are implemented.

33. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 28 are implemented.

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