Communication method and device, storage medium and program product

Abstract

The embodiment of the invention provides a communication method and device, a storage medium and a program product, relates to the technical field of communication, and is used for realizing timely execution of DL transmission and UL transmission. The method is applied to a first node, and the method comprises: receiving first configuration information sent by a second node, the first configuration information being used for determining that frequency domain resources of a carrier comprise at least one resource block set which is continuous in a frequency domain and is used for UL and at least one resource block set which is continuous in the frequency domain and is used for DL, the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL are allowed to be configured in all time domain resources of the carrier.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, device, storage medium and program product. Background Art

[0002] In the related art, the working mechanism of the bandwidth part (BWP) is as follows: for a time division duplexing (TDD) carrier, a downlink (DL) BWP and an uplink (UL) BWP are configured, but the DL BWP is effective in DL symbols (including DL symbols converted from flexible (flexibility, F) symbols through configuration signaling) and not in UL symbols. The UL BWP is effective in UL symbols (including UL symbols converted from flexible symbols through configuration signaling) and not in DL symbols. Therefore, DL transmission cannot be performed in time during the duration of the UL symbol. UL transmission cannot be performed in time during the duration of the DL symbol. Summary of the invention

[0003] The embodiments of the present disclosure provide a communication method, an apparatus, a storage medium, and a program product, which are used to implement timely execution of DL transmission and UL transmission.

[0004] In order to achieve the above objectives, the present disclosure adopts the following technical solutions.

[0005] In a first aspect, a communication method is provided, which is applied to a first node and includes:

[0006] Receive first configuration information sent by the second node, the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

[0007] In a second aspect, a communication method is provided, which is applied to a second node, including:

[0008] First configuration information is sent to the first node, and the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

[0009] According to a third aspect, a communication device is provided, which is applied to a first node and includes:

[0010] A receiving unit is used to receive first configuration information sent by a second node, the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

[0011] In a fourth aspect, a communication device is provided, applied to a second node, including:

[0012] A sending unit is used to send first configuration information to a first node, where the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

[0013] In a fifth aspect, a communication device is provided, comprising: a processor and a memory; the memory and the processor are coupled; the memory is used to store instructions executable by the processor, and the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the communication device executes the method provided in any one of the first aspect or the second aspect above.

[0014] In a sixth aspect, a computer-readable storage medium is provided, which stores computer instructions. When the computer instructions are executed on a computer, the computer executes the method provided in any one of the first or second aspects above.

[0015] In a seventh aspect, a computer program product comprising computer instructions is provided. When the computer instructions are executed on a computer, the computer executes the method provided in any one of the first aspect or the second aspect.

[0016] In an embodiment of the present disclosure, a resource block set for UL and a resource block set for DL ​​are allowed to be configured in all time domain resources of a carrier, so as to configure a TDD carrier or a carrier in a predefined carrier frequency band as a "frequency division duplexing (FDD)" carrier, thereby enabling UL transmission and DL transmission to be executed in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure.

[0018] Figure 1 A schematic diagram of the structure of an SBFD sub-band provided in an embodiment of the present disclosure;

[0019] Figure 2 A schematic diagram of the structure of another SBFD sub-band provided in an embodiment of the present disclosure;

[0020] Figure 3 A schematic diagram of the structure of an IBFD subband provided in an embodiment of the present disclosure;

[0021] Figure 4 A schematic diagram of the structure of a communication system provided by an embodiment of the present disclosure;

[0022] Figure 5 A flow chart of a communication method provided by an embodiment of the present disclosure;

[0023] Figure 6 A schematic diagram of the structure of a carrier provided in an embodiment of the present disclosure;

[0024] Figure 7 A schematic diagram of the structure of another carrier provided in an embodiment of the present disclosure;

[0025] Figure 8 A schematic diagram of the structure of another carrier provided in an embodiment of the present disclosure;

[0026] Fig. 9 A schematic diagram of the structure of another carrier provided in an embodiment of the present disclosure;

[0027] Fig.10 A schematic diagram of the structure of another carrier provided in an embodiment of the present disclosure;

[0028] Fig.11 A flowchart of another communication method provided by an embodiment of the present disclosure;

[0029] Fig.12 A schematic diagram of the composition of a communication device provided in an embodiment of the present disclosure;

[0030] Fig.13 A schematic diagram of another communication device provided in an embodiment of the present disclosure;

[0031] Fig.14 A schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0033] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms such as the third person singular form "comprises" and the present participle form "comprising" are to be interpreted as open, inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0035] In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0036] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0037] In order to improve the UL coverage of the TDD system, reduce the delay of UL transmission and increase the capacity of UL transmission, a sub-band full-duplex technology is proposed for user equipment (UE) in a radio resource control (RRC) connected state.

[0038] In the related art, a UL subband can be configured in part or all of a DL symbol or an F symbol, but cannot be configured in a UL symbol. For example, a UL subband is configured in a DL symbol, and a DL subband is also configured in the DL symbol. That is, the UL subband and the DL subband (also called a subband full duplex (SBFD) subband) are configured in a DL symbol or an F symbol at the same time, and the symbol configured with the SBFD subband is called an SBFD symbol, and the symbol not configured with the SBFD subband is called a non-SBFD symbol. However, the UL subband and the DL subband are prohibited from being configured in the UL symbol. In this case, the UL BWP in the UL symbol is used for UL transmission, and the UL subband in the SBFD symbol is used for uplink transmission. However, the interference conditions in the UL BWP and the UL subband are different, so the corresponding UL transmission is required to provide corresponding transmission parameters and configuration parameters to adapt to the UL transmission in the UL BWP and the UL subband respectively. This will complicate the design of UL transmission in the system.

[0039] In order to further improve system efficiency, full-duplex technology is being studied, such as in-band full-duplex (IBFD) operation, that is, a time-frequency resource is configured in the carrier bandwidth of a carrier, in which the base station can perform simultaneous co-frequency transmission and reception. For example, continuous resource blocks (RBs) are configured in the carrier bandwidth as an IBFD subband, and the IBFD subband is configured in all or part of the symbols, thereby forming a resource for IBFD operation. However, in future systems, how to configure / update the above-mentioned SBFD subband and the configuration of the IBFD subband, some methods are provided below.

[0040] The UL subband and the DL subband are also referred to as SBFD subbands, that is, one SBFD subband is configured in a DL BWP in a DL symbol / time slot. The SBFD subband generally includes at least one DL subband and one UL subband.

[0041] For example, in a 100MHz TDD carrier, 20 consecutive RBs are configured as the UL subband in the DL BWP in the DL symbol / slot, and the remaining frequency domain resources of the DL BWP are the DL subband (the gap may not be configured), or a DL subband is also configured in the DL BWP in the DL symbol / slot. In this way, in the DL symbol / slot, the UL subband can be used for UL transmission and the DL subband can be used for DL ​​transmission. Figure 1 FIG. 1 is a schematic diagram of a structure of an SBFD sub-band provided in an embodiment of the present disclosure. Figure 1 In the frequency domain, one SBFD subband includes one UL subband and two DL subbands. This frequency domain pattern is generally called "DUD" (based on frequency domain structure). Where D represents the downlink DL and U represents the uplink UL. Figure 2 FIG. 1 is a schematic diagram of the structure of another SBFD sub-band provided in an embodiment of the present disclosure. Figure 2 In the SBFD subband, a SBFD subband includes a UL subband and a DL subband and the UL subband is located below the DL subband. This frequency domain pattern is generally called "DU" (based on the frequency domain structure).

[0042] Currently, sub-band full-duplex technology includes the following features:

[0043] The base station has the ability to perform reception (in the UL subband) and transmission (in the DL subband) in the same time domain at the same time. The UE does not have the ability to perform reception (in the DL subband) and transmission (in the UL subband) in the same time domain at the same time. Here, the UL subband and the DL subband are configured in the same OFDM symbol / slot and are frequency-divided.

[0044] For the convenience of description, some technical terms are as follows:

[0045] A symbol configured with an SBFD subband is called an SBFD symbol. A slot containing an SBFD symbol is called an SBFDslot. A symbol not configured with an SBFD subband is called a non-SBFD symbol (that is, a regular symbol). A slot that does not contain an SBFD symbol is called a non-SBFD slot.

[0046] In some examples, the above SBFD subband operation is performed within a DL BWP and a UL BWP pair, and the DL BWP and the UL BWP pair are center-frequency aligned.

[0047] In some examples, a DL subband and a UL subband are defined first, a DL BWP is defined in the DL subband, and a UL BWP is defined in the UL subband.

[0048] In the embodiment of the present disclosure, one carrier may be a cell; or one carrier may be a sub-cell in a super cell, and the super cell may include multiple sub-cells (or multiple carriers); or in the embodiment of the present disclosure, if the one carrier is a super cell, then the DL sub-band or UL sub-band in the embodiment of the present disclosure corresponds to a sub-cell in the super cell, and one sub-cell corresponds to an independent carrier.

[0049] Figure 3 FIG. 1 is a schematic diagram of the structure of an IBFD subband provided by an embodiment of the present disclosure, see Figure 3 , part or all of the carrier bandwidth of a carrier is configured with an IBFD subband, and the IBFD is configured in all or part of the symbols.

[0050] The intersection resources of the UL subband and the activated UL BWP in the frequency domain are called UL available physical resource blocks (PRBs), and the intersection resources of the DL subband and the activated DL BWP in the frequency domain are called DL available PRBs.

[0051] A symbol configured with an IBFD subband is called an IBFD symbol. A slot containing an IBFD symbol is called an IBFDslot. A symbol not configured with an IBFD subband is called a non-IBFD symbol (that is, a regular symbol). A slot that does not contain an IBFD symbol is called a non-IBFD slot.

[0052] From the above description of the working mechanism of BWP, it can be seen that DL BWP is effective in DL symbols (including DL symbols converted from flexible (F) symbols through configuration signaling), but not in UL symbols. UL BWP is effective in UL symbols (including UL symbols converted from flexible (F) symbols through configuration signaling), but not in DL symbols. Therefore, in the time domain, TDD carriers cannot configure DL BWP and UL BWP in all symbols. Therefore, DL transmission cannot be performed in time during the duration of UL symbols. UL transmission cannot be performed in time during the duration of DL symbols.

[0053] In the related art, the base station side supports full-duplex operation based on SBFD subbands, but the UE side is still half-duplex operation, that is, time division multiplexing (TDM) operates between DL and UL. The working mechanism of SBFD subbands is: for TDD carriers, DL subbands and UL subbands are configured in DL symbols and F symbols. That is, DL subbands and UL subbands are not configured in UL symbols. In this way, the TDD carrier cannot configure DL subbands and UL subbands in all symbols in the time domain. Therefore, DL transmission cannot be performed in time during the duration of the UL symbol.

[0054] In summary, in the related art, DL transmission and UL transmission cannot be performed in time.

[0055] Based on this, the embodiments of the present disclosure provide a communication method, device, storage medium and program product, wherein the first configuration information sent by the second node is used to configure the frequency domain resources of a carrier, the frequency domain resources include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier, so as to configure a TDD carrier or a carrier in a predefined carrier frequency band as an "FDD" carrier, thereby enabling UL transmission and DL transmission to be executed in a timely manner.

[0056] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0057] The technical solution provided by the embodiments of the present disclosure can be applied to various communication systems that support pragmatic communication, for example, new radio (NR) communication systems using fifth generation mobile communication technology (5th generation mobile networks, 5G), future evolution systems, long term evolution (LTE) or multiple communication convergence systems, etc., and the embodiments of the present disclosure are not limited to this.

[0058] Figure 4 FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present disclosure. Figure 4 As shown, the communication system includes but is not limited to a base station 110 and a terminal 120. The base station 110 and the terminal 120 can transmit and receive wireless signals and perform related interactions.

[0059] In some embodiments, the base station 110 may be connected to multiple terminals 120. The multiple terminals 120 may be located in the same cell or in different cells. That is, one base station 110 may provide network services to a terminal 120 in one cell or to terminals 120 in multiple cells at the same time.

[0060] In some embodiments, the base station 110 is used to provide wireless access services for the terminal 120. Specifically, each base station 110 provides a service coverage area (also referred to as a cell). The terminal 120 entering the area can communicate with the base station through wireless signals to receive the wireless access service provided by the base station 110. The service coverage areas of the base stations 110 may overlap, and the terminal 120 in the overlapping area can receive wireless signals from multiple base stations 110.

[0061] In the present disclosure, the base station 110 can be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTEA), a base station device in a 5G network, or a base station in a future communication system (such as 6G, etc.), etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network side devices such as primary cells and collaborative cells (secondary cells).

[0062] In the present disclosure, the terminal 120 is a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present disclosure do not limit the application scenario. The terminal can sometimes also be called a user, user equipment, access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication equipment, UE agent or UE device, etc. The embodiments of the present disclosure are not limited.

[0063] It should be understood that Figure 4 is an exemplary structural diagram, such as Figure 4 The number of devices included in the communication system shown is not limited, for example, the number of base stations and terminals is not limited. Figure 4 In addition to the equipment shown, Figure 4 The communication system shown may also include other devices, which is not limited thereto.

[0064] Next, if Figure 5 As shown, the embodiment of the present disclosure provides a communication method, which is applied to a first node, and the first node may be a terminal. For example, the first node may be the above-mentioned Figure 4 The terminal 120 shown in the figure may include the following steps:

[0065] S101. Receive first configuration information sent by a second node.

[0066] Among them, the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

[0067] The second node may be a network side device, for example, a base station, which may be the above-mentioned Figure 4 A base station 110 is shown.

[0068] In some embodiments, the aforementioned one carrier may be a cell.

[0069] In some embodiments, if the above-mentioned one carrier can be a cell, then the set of resource blocks for DL ​​that are continuous in the frequency domain corresponds to part of the frequency domain resources of the cell and is used for DL ​​(for example, the DL subband in the SBFD subband), and the set of resource blocks for UL that are continuous in the frequency domain corresponds to part of the frequency domain resources of the cell and is used for UL (for example, the UL subband in the SBFD subband).

[0070] In some embodiments, the one carrier mentioned above is a sub-cell in a super cell, and the super cell includes multiple sub-cells (or includes multiple carriers).

[0071] In some embodiments, if the above-mentioned one carrier is a super cell, the set of resource blocks used for DL ​​that are continuous in the frequency domain corresponds to a sub-cell used for DL ​​in the super cell, and the set of resource blocks used for UL that are continuous in the frequency domain corresponds to a sub-cell used for UL in the super cell. The one sub-cell corresponds to an independent carrier.

[0072] In some embodiments, the frequency domain resources of a carrier refer to the carrier bandwidth used for communication in the carrier.

[0073] In some embodiments, the frequency domain resources of a carrier refer to the bandwidth of the carrier.

[0074] In some embodiments, the network side device and the terminal comply with the rules corresponding to the predefined carrier frequency band, for example, the carrier provided by the carrier frequency band is defined as one of the above-mentioned carriers, the UE is configured with one of the carriers of the carrier frequency band, or the UE accesses one of the carriers in the carrier frequency band, then the UE can be configured with the above-mentioned first configuration information. That is, the UE is configured with one of the carriers in the carrier frequency band, and the UE learns based on the carrier frequency band to which the carrier belongs that the carrier can be configured based on the above-mentioned first configuration information.

[0075] In some embodiments, after receiving the first configuration information, the first node may determine a frequency domain resource of a carrier based on the first configuration information, so as to perform UL transmission and DL transmission simultaneously based on the determined frequency domain resource of the carrier.

[0076] The description of the first configuration information may include the following examples:

[0077] Example 1: When the carrier is a TDD carrier, all time domain resources of the carrier are allowed to be configured to include SBFD subbands, wherein the SBFD subbands include at least one of the following: UL subbands, DL subbands, and all time domain resources include at least one of the following: OFDM symbols configured for downlink, OFDM symbols configured for uplink, and flexible OFDM symbols.

[0078] For example, SBFD subbands are also allowed to be configured in UL symbols / slots. Figure 6 FIG. 1 is a schematic diagram of a structure of a carrier provided by an embodiment of the present disclosure. Figure 6 In the case where the carrier is a TDD carrier, the TDD carrier is configured with UL symbols / slots and DL symbols / slots. A DL subband and a UL subband are configured in each symbol / slot of the TDD carrier. The DL subband and the UL subband here are "DU" patterns in the frequency domain, and can also be configured as "UD", "DUD" or "UDU".

[0079] In some embodiments, the above-mentioned DL subband and UL subband are at a cell level.

[0080] In some embodiments, when the carrier is a TDD carrier, the first node may further determine at least one of the following:

[0081] In the TDD carrier, the intersection resources of the activated UL BWP and the UL subband in the frequency domain are determined as the UL available PRB of the first node;

[0082] In the TDD carrier, the intersection resources of the activated DL BWP and the DL subband in the frequency domain are determined as the DL available PRB of the first node;

[0083] Among them, the UL available PRBs and DL available PRBs in each symbol / time slot of the TDD carrier are allowed to be configured to support simultaneous UL transmission and DL transmission for the same first node based on frequency division multiplexing (FDM). That is to say, the UL available PRBs and DL available PRBs in each symbol / time slot of a carrier configured by the first configuration information are allowed to be configured to support simultaneous UL transmission and DL transmission for the same first node based on FDM, thereby achieving timely execution of DL transmission and UL transmission.

[0084] In some embodiments, the UL available PRBs may be used for UL transmission of the first node, and the DL available PRBs may be used for DL ​​transmission of the first node. The DL subband and the UL subband are configured based on a carrier bandwidth of the TDD carrier.

[0085] It should be noted that the UL BWP and DL BWP are configured based on the carrier bandwidth of the TDD carrier.

[0086] Example 2: When the carrier is a carrier in a predefined carrier frequency band, the carrier is allowed to configure an SBFD subband, and the SBFD subband is configured in all time domain resources of the carrier, wherein the SBFD subband includes at least one of the following: an uplink UL subband, a downlink DL subband.

[0087] In some embodiments, the SBFD sub-band is configured based on the carrier bandwidth of the carrier in the predefined carrier frequency band.

[0088] In some embodiments, the predefined carrier frequency band has the following features: a carrier within the predefined carrier frequency band is allowed to be configured with at least one set of resource blocks for uplink that is continuous in the frequency domain and at least one set of resource blocks for downlink that is continuous in the frequency domain;

[0089] In some embodiments, the first node determines whether the first configuration information is valid in all time domain resources of a carrier based on a frequency band to which the carrier belongs.

[0090] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the operating mode of the carrier does not belong to the TDD mode or the FDD mode. That is, when the carrier is a carrier in a predefined carrier frequency band, the carrier has a new operating mode.

[0091] The carrier working mode meets the following requirements:

[0092] The UL transmission and DL transmission are supported in FDM mode within the carrier. For example, the UL subband and the DL subband are configured simultaneously in the frequency domain. In each symbol / slot of the carrier, the UL subband is used for UL transmission and the DL subband is used for DL ​​transmission. Two examples can be as follows Figure 7 and Figure 8 As shown, Figure 7 and Figure 8 Each of them is a schematic diagram of the structure of another carrier provided in an embodiment of the present disclosure.

[0093] As a possible example, the UL available PRB and DL available PRB of each symbol / time slot of the carrier in the time domain are allowed to be configured to support simultaneous UL transmission and DL transmission for the same first node based on FDM. That is, each symbol / slot of the carrier in the predefined carrier frequency band in the time domain can simultaneously support UL transmission and DL transmission based on FDM.

[0094] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, each symbol of the carrier in the time domain is allowed to be configured as M symbols or M time slots, wherein, in the M symbols or M time slots, the UL transmission and DL transmission of the same first node are allowed to be configured to be performed simultaneously in an FDM manner, the M symbols do not belong to the DL symbols and UL symbols, and the M time slots do not belong to the DL time slots and UL time slots.

[0095] That is, the symbol / slot in the carrier is recorded as M symbol / M slot, and M symbol / M slot does not belong to DL symbol / slot and UL symbol / slot. The DL subband and UL subband here are "DU" pattern and "DUD" pattern in the frequency domain, and can also be configured as "UD" or "UDU".

[0096] In some embodiments, the above-mentioned DL subband and UL subband are at a cell level.

[0097] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the first node may further determine at least one of the following:

[0098] In a carrier in a predefined carrier frequency band, determining an intersection resource of an activated UL BWP and a UL subband in a frequency domain as a UL available PRB of the first node;

[0099] In a carrier in a predefined carrier frequency band, determining an intersection resource of an activated DL BWP and a DL subband in a frequency domain as a DL available PRB of the first node;

[0100] The UL available PRBs and DL available PRBs in each symbol / time slot of the carrier in the predefined carrier frequency band are allowed to be configured to support simultaneous UL transmission and DL transmission for the same first node based on the FDM method.

[0101] The DL subband and the UL subband are configured based on the carrier bandwidth of the carrier in the predefined carrier frequency band. It should be noted that the UL BWP and the DL BWP are configured based on the carrier bandwidth of the carrier in the predefined carrier frequency band.

[0102] Example 3: When the carrier is a carrier in a predefined carrier frequency band, the carrier is allowed to be configured with at least one DL subband for DL ​​transmission, and is allowed to be configured with at least one UL subband for UL transmission.

[0103] In some embodiments, DL subbands and UL subbands are configured in all time-domain symbols of a carrier.

[0104] In some embodiments, the DL sub-band and the UL sub-band are configured based on a carrier bandwidth of a carrier in the predefined carrier frequency band.

[0105] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the ULBWP of the first node is configured to be based on the bandwidth of the UL subband, and the DL BWP of the first node is configured to be based on the bandwidth of the DL subband, wherein the ULBWP is configured within the bandwidth of the UL subband, and the DL BWP is configured within the bandwidth of the DL subband, and the carrier is allowed to be configured in the UL BWP and the DL BWP of each symbol / time slot to support simultaneous UL transmission and DL transmission for the same first node based on the FDM method.

[0106] For example, the UL subband and the DL subband are simultaneously configured in the frequency domain in each symbol / slot of the carrier in the predefined carrier frequency band, the UL subband is used for UL transmission, and the DL subband is used for DL ​​transmission. Two examples can be as follows Fig. 9 and Fig.10 As shown, Fig. 9 and Fig.10 Each of them is a schematic diagram of the structure of another carrier provided in an embodiment of the present disclosure.

[0107] Each symbol / slot of the carrier in the predefined carrier frequency band in the time domain can support both UL transmission and DL transmission based on the FDM method. The symbol / slot in the carrier in the predefined carrier frequency band is recorded as M symbol / Mslot, and M symbol / M slot does not belong to DL symbol / slot and UL symbol / slot. The DL subband and UL subband here are "DU" patterns and "DUD" patterns in the frequency domain, and can also be configured as "UD" or "UDU".

[0108] For a first node configured with a carrier in a predefined carrier frequency band, a UL BWP of the first node is configured based on a bandwidth of a UL subband, and a DL BWP of the first node is configured based on a bandwidth of a DL subband.

[0109] That is, the UL BWP is configured within the frequency domain of the UL subband and is valid in all symbols / slots. The DLBWP is configured within the frequency domain of the DL subband and is valid in all symbols / slots. The DL subband and the UL subband are configured based on the carrier bandwidth of the carrier in the predefined carrier frequency band. The UL BWP is activated as an activated UL BWP for UL transmission, and the DL BWP is activated as an activated DL BWP for DL ​​transmission. The subcarrier spacing and cyclic prefix corresponding to the UL BWP are the same as the subcarrier spacing and cyclic prefix associated with the UL subband. The subcarrier spacing and cyclic prefix corresponding to the DL BWP are the same as the subcarrier spacing and cyclic prefix associated with the DL subband.

[0110] It should be noted that the DL BWP of the first node can be replaced by a DL subband dedicated to the first node. The UL BWP of the first node can be replaced by a UL subband dedicated to the first node.

[0111] Based on the methods provided in Examples 1 to 3 above, the first node can obtain a set of resource blocks for UL that are continuous in the frequency domain and a set of resource blocks for DL ​​that are continuous in the frequency domain in one carrier. The UL transmission and DL transmission of the first node can be performed in the corresponding resource block set. It should be understood that the resource block sets for DL ​​transmission and UL transmission can also be obtained by other means, and the embodiments of the present disclosure are not limited to this.

[0112] The UL transmission and DL transmission of the first node can be scheduled / configured in the corresponding resource block set and use the same time domain resources in the time domain (it is also possible that the DL transmission and the UL transmission at least partially overlap in the time domain). Figure 6 to Figure 10 In the second slot and the last slot of the UE, DL transmission and UL transmission of the first node are simultaneously performed based on the same time domain resources (in the same symbol in the same slot).

[0113] In some embodiments, the first node performs DL transmission and UL transmission simultaneously based on the frequency domain resources configured by the first configuration information.

[0114] One execution method on the first node side is that the first node regards DL transmission and UL transmission as DL transmission in a DL carrier and UL transmission in a UL carrier of an FDD system / mode respectively and adopts the mechanism of the FDD mode to simultaneously perform reception of DL transmission and transmission of UL transmission.

[0115] Further, in order to reduce the complexity of the first node side as much as possible and ensure the performance of DL transmission and UL transmission, a first interval gap in the frequency domain is introduced between the UL transmission and the DL transmission, and the above complexity is reduced and the performance is ensured based on the setting of the first gap. The first GAP is the interval between the DL transmission and the UL transmission. Figure 6 to Figure 10 The interval 1 is the first GAP, Figure 6 to Figure 10 The interval in is the second GAP, and the second GAP is the frequency domain interval between the DL subband and the UL subband. It should be understood that the second GAP is the existing GAP, and the first GAP is a new GAP provided by the embodiment of the present disclosure.

[0116] The first GAP is introduced below.

[0117] refer to Figure 6 to Figure 8 In the "DU" frequency domain pattern of the first node, the first GAP is defined from the lower boundary of the minimum RB of the DL transmission of the first node to the upper boundary of the maximum RB of the UL transmission. For example, assume that an RB contains 12 subcarriers. The lower boundary of the minimum RB of the DL transmission refers to: the center of the minimum subcarrier of the minimum RB among the RBs configured for the DL transmission and within the frequency domain range of the DL transmission of the first node. The upper boundary of the maximum RB of the UL transmission refers to: the center of the maximum subcarrier of the maximum RB among the RBs configured for the UL transmission and within the frequency domain range of the UL transmission of the first node.

[0118] If the frequency domain pattern configured for the DL subband and the UL subband is "UD", the definition of the first GAP can be adaptively modified, for example, the first GAP is from the lower boundary of the minimum RB of the UL transmission of the first node to the upper boundary of the maximum RB of the DL transmission. For example, assume that an RB contains 12 subcarriers. The lower boundary of the minimum RB of the UL transmission refers to: the center of the minimum subcarrier of the minimum RB in the RBs configured for the UL transmission and within the frequency domain range of the UL transmission of the first node. The upper boundary of the maximum RB of the DL transmission refers to: the center of the maximum subcarrier of the maximum RB in the RBs configured for the DL transmission and within the frequency domain range of the DL transmission of the first node.

[0119] The second GAP is introduced below.

[0120] In some embodiments, the first GAP includes a second GAP, the second GAP being a frequency domain interval between a DL subband and a UL subband.

[0121] refer to Figure 6 to Figure 10 , the second GAP is the frequency domain interval between the DL subband and the UL subband. It should be noted that the second GAP corresponds to Figures 6 to 10 The first GAP corresponds to Figures 6 to 10 The interval 1 in .

[0122] In some embodiments, the first GAP can be reported by the first node to the second node. Based on this, in some embodiments, the first node sends first indication information to the second node, and the first indication information is used to indicate at least one of the following:

[0123] Multiple first GAPs, different first GAPs correspond to different levels;

[0124] a level of the first GAP supported by the first node;

[0125] The size of the first GAP supported by the first node.

[0126] For example, the first node can report a first GAP suitable for itself to support DL reception and UL transmission in the same time domain resource in FDM mode based on its own capabilities. The first GAP can be described based on the number of RBs. Obviously, the first GAP can also be described based on subcarriers. The subcarrier spacing corresponding to the RB or subcarrier is the same as the subcarrier spacing associated with the DL subband and the UL subband.

[0127] After the second node receives the first GAP reported by the first node, the second node can schedule / configure the DL transmission and UL transmission of the first node to be performed in the same time domain resource in an FDM manner and the DL transmission and UL transmission are separated by at least the first GAP. The time domain resources of the DL transmission and the time domain resources of the UL transmission can partially overlap or completely overlap in the time domain. For example, Figures 6 to 10 In this case, DL transmission and UL transmission overlap in the time domain and are scheduled in a frequency division manner, and the first GAP (i.e., interval 1) needs to be greater than or equal to the size of the first GAP reported by the first node, wherein: Figure 8 and Fig.10 In the case where two DL transmissions and one UL transmission overlap in the time domain and are scheduled in a frequency division manner, both first GAPs need to be larger than or equal to the size of the first GAP reported by the first node.

[0128] In some embodiments, the first node and the second node agree that the first GAP should be greater than or equal to the second GAP.

[0129] If the first GAP supported by the first node is less than or equal to the second GAP, the first node does not need to report the first GAP, thereby saving signaling overhead. Alternatively, the first node and the second node agree that if the first node does not report the first GAP, the second node assumes that the size of the first GAP that the first node can support is the second GAP. Alternatively, the first node and the second node agree that if the first node does not report the first GAP, the second node assumes that the first node does not support simultaneous DL transmission and UL transmission.

[0130] The following is an introduction to the classification of the first GAP.

[0131] Since different transmissions require different performance, the size of the first GAP can also be classified into levels, such as gap A and gap B. First GAPs of different levels have different frequency domain sizes and are respectively associated with corresponding transmission performances. Based on this, the level of the first GAP is determined based on the size of the first GAP.

[0132] Assume that transmission is divided into high priority and low priority. High priority transmission requires high performance, so it corresponds to gap A. The performance of low priority transmission is lower than that of high priority transmission, so it corresponds to gap B. Here gap A is larger than gap B.

[0133] That is, the size or level of the corresponding first GAP is determined based on the priority of the DL transmission and the UL transmission. That is, the level of the first GAP and / or the size of the first GAP is determined based on the priority of the UL transmission and the priority of the DL transmission.

[0134] If at least one of the two DL transmissions and UL transmissions overlapping in the time domain is a high priority transmission, the gap between the DL transmission and the UL transmission at least satisfies gapA; otherwise, the gap between the DL transmission and the UL transmission at least satisfies gapB.

[0135] If two DL transmissions and UL transmissions that overlap in the time domain have the same priority, but at least one is a common channel (i.e., a channel for multiple UEs), then the gap between the DL transmission and the UL transmission at least satisfies gapA (setting a larger first GAP), otherwise, the gap between the DL transmission and the UL transmission at least satisfies gapB.

[0136] If two DL transmissions and UL transmissions that overlap in the time domain have the same priority, but at least one is control signaling (including physical downlink control channel (PDCCH), physical uplink control channel (PUCCH), and physical uplink shared channel (PUSCH) carrying uplink control information (UCI)), then the gap between the DL transmission and the UL transmission at least satisfies gapA (setting a larger first GAP), otherwise, the gap between the DL transmission and the UL transmission at least satisfies gapB.

[0137] That is, the first GAP is determined based on the priority (e.g., high priority or low priority) of the corresponding DL transmission and UL transmission, or based on whether the corresponding DL transmission and UL transmission are UE-level or public-level, or based on whether the corresponding DL transmission and UL transmission are control signaling or non-control signaling.

[0138] A method for prohibiting transmission can also be included here. For example, if the DL transmission and the UL transmission overlap in the time domain, and at least one of the DL transmission and the UL transmission is a high priority transmission, even if the first GAP meets the requirements, the first node only performs the transmission corresponding to the high priority and discards the transmission corresponding to the low priority.

[0139] In some embodiments, the level of the first GAP is associated with a time slot or symbol type. For example, in a DL slot / symbol, the first GAP requirement between the DL transmission and the UL transmission of the first node is one level. In a UL slot / symbol, the first GAP requirement between the DL transmission and the UL transmission of the first node is another level.

[0140] In some embodiments, the level of the first GAP is determined based on the size of the first GAP and a common GAP level, and the common GAP level is predefined. The common GAP level is introduced below.

[0141] In order to reduce the complexity of the first GAP at the first node level, for example, each first node having a different first GAP will make the scheduling algorithm of the second node more complicated. For this purpose, a common GAP level is proposed.

[0142] The second node and the first node agree to predefine N common GAP levels. For example, the first common GAP level is that the first GAP contains 2 RBs, the second common GAP level is that the first GAP contains 4 RBs, the third common GAP level is that the first GAP contains 6 RBs, the fourth common GAP level is that the first GAP contains greater than or equal to 8 RBs, etc. The number of levels can be configured by signaling, for example, the first node configures the common GAP level to 4 types, or configures a maximum of 4 types. The number of RBs corresponding to each common GAP level can also be configured by signaling.

[0143] After the public GAP level is configured by signaling, the first node can report the public GAP level it supports. The second node ensures that the number of RBs between the DL transmission and the UL transmission scheduled for the first node is not less than the number of RBs corresponding to the public GAP level reported by the first node. That is, the first node reports the public GAP level suitable for itself according to its own capabilities.

[0144] In some embodiments, in order to improve the utilization rate of frequency domain resources (eg, RBs) in the first GAP, other frequency domain resources in the first GAP except the second GAP may be used for data transmission of other first nodes.

[0145] In some embodiments, any transmission is prohibited from being performed in the first GAP of the first node to reduce interference. However, in some embodiments, in order to reuse resources, the frequency domain resources remaining in the first GAP after removing the frequency domain resources of the second GAP can be reused for transmission of another first node.

[0146] Assume that for a first node (e.g., UE1), a second node configures DL transmission and UL transmission to be performed simultaneously, wherein the first GAP between the DL transmission and the UL transmission is 8 RBs. Assume that 4 RBs of the 8 RBs are in the second GAP, and the other 4 are in the DL subband. The second node can schedule the DL transmission of other first nodes (e.g., UE2) in the other 4 RBs, thereby avoiding the waste of RBs in the first GAP. In order to reduce the interference between the DL transmission of other first nodes in the other 4 RBs and the DL transmission / UL transmission of the first node, the first node and the other first nodes should have different beam directions. For example, the first node and the other second node have a large geographical difference.

[0147] The first node may also report to the second node whether the RBs in the first GAP corresponding to the first node allow data transmission. If the first node reports that the RBs in the first GAP of the first node are not allowed, the RBs in the first GAP of the first node should be prohibited from scheduling transmission and remain idle. Otherwise, the RBs in the first GAP of the first node are allowed to schedule transmission.

[0148] The first GAP can also be used as the minimum frequency domain interval between DL available PRBs and UL available PRBs. If the minimum frequency domain interval between DL available PRBs and UL available PRBs of a first node is greater than or equal to the above-mentioned first GAP, the second node is allowed to schedule DL transmission and UL transmission with time domain overlap for the first node in the DL available PRBs and UL available PRBs respectively. This method can arbitrarily schedule DL transmission and UL transmission with time domain overlap in DL available PRBs and UL available PRBs, reducing the complexity of scheduling. Alternatively, the first GAP can also be used as DL BWP and UL BWP (for example, based on Example 3 or Fig. 9 and Fig.10 The minimum frequency domain interval between the DL BWP and the UL BWP obtained. If the minimum frequency domain interval between the DL BWP and the UL BWP of a first node is greater than or equal to the first GAP, the second node is allowed to schedule the DL transmission and UL transmission with time domain overlap for the first node in the DL BWP and the UL BWP respectively. In this way, the DL transmission and UL transmission with time domain overlap can be scheduled arbitrarily in the DL BWP and the UL BWP, reducing the complexity of scheduling.

[0149] In combination with the above introduction to the first GAP, the above FDM-based method for simultaneously performing UL transmission and DL transmission for the same first node includes:

[0150] Based on the first GAP ， UL transmission and DL transmission are simultaneously performed for the same first node within a UL available PRB and within a DL available PRB, or, based on the first GAP, UL transmission and DL transmission are simultaneously performed for the same first node within a UL BWP and within a DL BWP.

[0151] In some embodiments, the first node should report first GAPs of different levels to accommodate time-domain overlapping DL transmission and UL transmission with different performance requirements.

[0152] In some embodiments, the first node does not expect that the first GAP between the scheduled / configured DL transmission and UL transmission with time domain overlap does not meet the requirement. That is, the second node ensures that the required first GAP is met when scheduling / configuring the DL transmission and UL transmission with time domain overlap.

[0153] In some embodiments, if the second node schedules / configures DL transmission and UL transmission with time domain overlap for the first node, the target first GAP between the DL transmission and the UL transmission should not be smaller than the first GAP corresponding to the first node.

[0154] In some embodiments, if the second node schedules / configures overlapping DL transmission and UL transmission for the first node in the time domain and the target first GAP between the DL transmission and the UL transmission is smaller than the first GAP corresponding to the first node, at least one of the following is performed:

[0155] 1) The first node does not perform the DL transmission and the UL transmission;

[0156] 2) The first node only executes the DL transmission and the UL transmission with an earlier starting position. For DL ​​transmission and UL transmission with the same starting position, the transmission with a larger number of symbols is executed. For DL ​​transmission and UL transmission with the same starting position and the same number of symbols, one transmission is randomly selected for execution.

[0157] 3) The first node and the second node agree to always perform DL transmission or UL transmission.

[0158] 4) The first node and the second node configure the UE through signaling to perform DL transmission or UL transmission.

[0159] 5) The second node configures the transmission direction (eg, UL priority or DL ​​priority) of the slot where the DL transmission or UL transmission is located through signaling, and the UE determines that the corresponding DL transmission or UL transmission is executed based on the configured transmission direction.

[0160] 6) The first node only performs the transmission with an earlier PDCCH in the DL transmission and the UL transmission. For PDCCHs with the same starting position, the transmission corresponding to the PDCCH with a larger number of symbols is performed. For PDCCHs with the same starting position and the same number of symbols, a transmission is randomly selected for execution.

[0161] 7) The first node only performs the transmission with an earlier PDCCH in the DL transmission and the UL transmission. For PDCCHs with the same starting position, one transmission is randomly selected for execution.

[0162] Based on this, the above-mentioned first GAP ， The method comprises: performing UL transmission and DL transmission for the same first node simultaneously within a UL available PRB and a DL available PRB, or, based on a first GAP, performing UL transmission and DL transmission for the same first node simultaneously within a UL BWP and a DL BWP, including:

[0163] When the target first GAP is greater than or equal to the first GAP, based on the first GAP ，Perform UL transmission and DL transmission simultaneously for the same first node within UL available PRBs and DL available PRBs, or, based on a first GAP, perform UL transmission and DL transmission simultaneously for the same first node within a UL BWP and a DLBWP, wherein the target first GAP is an interval between the UL transmission and the DL transmission scheduled / configured by the second node for the first node.

[0164] When the target first GAP is smaller than the first GAP, the method further includes at least one of the following:

[0165] UL transmission and DL transmission are not performed;

[0166] A target data transmission is performed, the target data transmission being one of UL transmission and DL transmission.

[0167] The target data transmission is the transmission with the earlier starting position among the UL transmission and the DL transmission; or,

[0168] The target data transmission is the transmission with the largest number of symbols among the UL transmission and the DL transmission; or,

[0169] The target data transmission is randomly determined from UL transmission and DL transmission; or,

[0170] The target data transfer is pre-negotiated; or,

[0171] The target data transmission is configured on the network side.

[0172] It should be understood that based on the design of the first GAP described above, a sub-band full-duplex design solution can be implemented on the UE side.

[0173] based on Figure 4 In the illustrated embodiment, the first configuration information sent by the second node is used to configure the frequency domain resources of a carrier, the frequency domain resources include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier, so as to configure a TDD carrier or a carrier in a predefined carrier frequency band as an "FDD" carrier, that is, having DL subbands and UL subbands in all symbols, or having DL BWP and UL BWP, so as to achieve timely transmission of UL transmission and DL transmission.

[0174] It should be noted that the above embodiment is described by taking the first configuration information sent by the second node to the first node as an example. In some embodiments, the first configuration information may also be predefined. In this way, there is no need to perform the step of the first node receiving the first configuration information sent by the second node. Step S101 may be replaced by the first node obtaining the first configuration information. The first node obtaining the first configuration information may be obtaining the first configuration information from a memory of the first node.

[0175] In some embodiments, Fig.11 As shown, the embodiment of the present disclosure further provides a communication method, which is applied to a second node. The method may include the following steps:

[0176] S201. Send first configuration information to a first node.

[0177] Among them, the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

[0178] In some embodiments, when the carrier is a TDD carrier, all time domain resources of the carrier are allowed to be configured to include SBFD subbands, wherein the SBFD subbands include at least one of the following: UL subbands, DL subbands, and all time domain resources include at least one of the following: OFDM symbols configured for downlink, OFDM symbols configured for uplink, and flexible OFDM symbols.

[0179] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the carrier is allowed to be configured with a SBFD subband, and the SBFD subband is configured in all time domain resources of the carrier, wherein the SBFD subband includes at least one of the following: an uplink UL subband, a downlink DL subband;

[0180] The predefined carrier frequency band has the following characteristics: a carrier within the predefined carrier frequency band is allowed to be configured with at least one set of resource blocks for uplink that is continuous in the frequency domain and at least one set of resource blocks for downlink that is continuous in the frequency domain;

[0181] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the operating mode of the carrier does not belong to the TDD mode or the FDD mode.

[0182] In some embodiments, the operating mode of the carrier meets the following requirements:

[0183] UL transmission and DL transmission are supported in an FDM manner within a carrier.

[0184] In some embodiments, UL transmission and DL transmission are supported in an FDM manner within a carrier, including: the UL available PRBs and DL available PRBs of each symbol / time slot of the carrier in the time domain are allowed to be configured to support simultaneous UL transmission and DL transmission for the same first node based on the FDM manner.

[0185] In some embodiments, each symbol of the carrier in the time domain is allowed to be configured as M symbols or M time slots, wherein, in the M symbols or M time slots, the UL transmission and DL transmission of the same first node are allowed to be configured to be performed simultaneously in an FDM manner, the M symbols do not belong to the DL symbols and UL symbols, and the M time slots do not belong to the DL time slots and UL time slots.

[0186] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the carrier is allowed to be configured with at least one DL subband for DL ​​transmission and is allowed to be configured with at least one UL subband for UL transmission.

[0187] In some embodiments, DL subbands and UL subbands are configured in all time-domain symbols of a carrier.

[0188] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the ULBWP of the first node is configured to be based on the bandwidth of the UL subband, and the DL BWP of the first node is configured to be based on the bandwidth of the DL subband, wherein the ULBWP is configured within the bandwidth of the UL subband, and the DL BWP is configured within the bandwidth of the DL subband, and the carrier is allowed to be configured in the UL BWP and the DL BWP of each symbol / time slot to support simultaneous UL transmission and DL transmission for the same first node based on the FDM method.

[0189] In some embodiments, performing UL transmission and DL transmission for the same first node simultaneously based on the FDM method includes:

[0190] Based on the first interval GAP ， UL transmission and DL transmission are simultaneously performed for the same first node within the UL available PRB and the DL available PRB, or, based on the first GAP, UL transmission and DL transmission are simultaneously performed for the same first node within the UL BWP and the DL BWP, wherein the first GAP is the minimum interval between DL transmission and UL transmission.

[0191] In some embodiments, the level of the first GAP is determined based on the size of the first GAP.

[0192] In some embodiments, the level of the first GAP is determined based on the size of the first GAP and a common GAP level, the common GAP level being predefined.

[0193] In some embodiments, the level of the first GAP and / or the size of the first GAP is determined based on a priority of UL transmission and a priority of DL transmission.

[0194] In some embodiments, the level of the first GAP is associated with a time slot type.

[0195] In some embodiments, the first GAP includes a second GAP, the second GAP being a frequency domain interval between a DL subband and a UL subband.

[0196] In some embodiments, other frequency domain resources in the first GAP except the second GAP may be used for data transmission of other first nodes.

[0197] In some embodiments, the second node receives first indication information sent by the first node, where the first indication information is used to indicate at least one of the following:

[0198] Multiple first GAPs, different first GAPs correspond to different levels;

[0199] a level of the first GAP supported by the first node;

[0200] The size of the first GAP supported by the first node.

[0201] In some embodiments, based on the first GAP ， The method comprises: performing UL transmission and DL transmission for the same first node simultaneously within a UL available PRB and a DL available PRB, or, based on a first GAP, performing UL transmission and DL transmission for the same first node simultaneously within a UL BWP and a DL BWP, including:

[0202] When the target first GAP is greater than or equal to the first GAP, based on the first GAP ， Perform UL transmission and DL transmission simultaneously for the same first node within UL available PRBs and DL available PRBs, or, based on a first GAP, perform UL transmission and DL transmission simultaneously for the same first node within a UL BWP and a DLBWP, wherein the target first GAP is an interval between the UL transmission and the DL transmission scheduled / configured by the second node for the first node.

[0203] based on Fig.11In the illustrated embodiment, the first configuration information sent by the second node is used to determine that the frequency domain resources of a carrier include at least one set of resource blocks for UL that are continuous in the frequency domain and at least one set of resource blocks for DL ​​that are continuous in the frequency domain, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier to configure a TDD carrier or a carrier in a predefined carrier frequency band as an "FDD" carrier, that is, having DL subbands and UL subbands in all symbols, or having DL BWP and UL BWP, so that the first node can perform UL transmission and DL transmission simultaneously based on the first configuration information, thereby achieving timely transmission of UL transmission and DL transmission.

[0204] The above mainly introduces the solution provided by the present disclosure from the perspective of interaction between various nodes. It is understandable that each node, such as the first node or the second node, includes a hardware structure and / or software module corresponding to the execution of each function in order to realize the above functions. It should be easily appreciated by those skilled in the art that the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software in combination with the algorithm steps of each example described in the embodiments disclosed herein. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.

[0205] The embodiment of the present disclosure can divide the functional modules of the first node or the second node according to the above method embodiment. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above integrated module can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiment of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0206] Fig.12 The following is a schematic diagram of the composition of a communication device provided in an embodiment of the present disclosure. Fig.12 As shown, the communication device 30 includes a receiving unit 301. In some embodiments, the communication device 30 further includes a processing unit 302 and a sending unit 303.

[0207] The communication device 30 may be the first node or a chip in the first node. When the communication device 30 is used to implement the function of the first node in the above embodiment, each unit is specifically used to implement the following functions.

[0208] The receiving unit 301 is used to receive first configuration information sent by the second node, where the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, and the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

[0209] In some embodiments, the processing unit 302 is configured to: in a TDD carrier, determine the intersection resources of the activated UL bandwidth part BWP and the UL subband in the frequency domain as the UL available physical resource block PRB of the first node;

[0210] In the TDD carrier, the intersection resources of the activated DL BWP and the DL subband in the frequency domain are determined as the DL available PRB of the first node;

[0211] The UL available PRBs and DL available PRBs in each symbol / time slot of the TDD carrier are allowed to be configured to support simultaneous UL transmission and DL transmission for the same first node based on frequency division multiplexing FDM.

[0212] In some embodiments, the processing unit 302 is configured to support UL transmission and DL transmission in a carrier in an FDM manner.

[0213] In some embodiments, the processing unit 302 is specifically configured to allow both the UL available PRBs and the DL available PRBs of each symbol / time slot of the carrier in the time domain to be configured to support simultaneous UL transmission and DL transmission for the same first node based on the FDM method.

[0214] In some embodiments, the processing unit 302 is specifically configured to: ， UL transmission and DL transmission are simultaneously performed for the same first node within the UL available PRB and the DL available PRB, or, based on the first GAP, UL transmission and DL transmission are simultaneously performed for the same first node within the UL BWP and the DL BWP, wherein the first GAP is the minimum interval between DL transmission and UL transmission.

[0215] In some embodiments, the sending unit 303 is configured to send first indication information to the second node, where the first indication information is used to indicate at least one of the following:

[0216] Multiple first GAPs, different first GAPs correspond to different levels;

[0217] a level of the first GAP supported by the first node;

[0218] The size of the first GAP supported by the first node.

[0219] In some embodiments, the processing unit 302 is specifically configured to, when the target first GAP is greater than or equal to the first GAP, based on the first GAP ， Perform UL transmission and DL transmission simultaneously for the same first node within UL available PRBs and DL available PRBs, or, based on a first GAP, perform UL transmission and DL transmission simultaneously for the same first node within a UL BWP and a DL BWP, wherein the target first GAP is an interval between the UL transmission and the DL transmission scheduled / configured by the second node for the first node.

[0220] In some embodiments, the processing unit 302 is further configured to: not perform UL transmission and DL transmission;

[0221] A target data transmission is performed, the target data transmission being one of UL transmission and DL transmission.

[0222] Fig.13 A schematic diagram of another communication device provided in an embodiment of the present disclosure. Fig.13 As shown, the communication device 40 includes a sending unit 401. In some embodiments, the communication device 40 further includes a receiving unit 402.

[0223] The communication device 40 may be the second node or a chip in the second node. When the communication device 40 is used to implement the function of the second node in the above embodiment, each unit is specifically used to implement the following functions.

[0224] The sending unit 401 is used to send first configuration information to the first node, where the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

[0225] In some embodiments, the receiving unit 402 is used to receive first indication information, where the first indication information is used to indicate at least one of the following:

[0226] Multiple first GAPs, different first GAPs correspond to different levels;

[0227] a level of the first GAP supported by the first node;

[0228] The size of the first GAP supported by the first node.

[0229] It should be noted that Fig.12 or Fig.13The units in the system may also be referred to as modules, for example, the sending unit may be referred to as a sending module. Fig.12 or Fig.13 In the illustrated embodiment, the names of the various units may not be the names shown in the figure. For example, the sending unit may be called a communication unit, and the receiving unit may be called a communication unit.

[0230] Fig.12 or Fig.13 If each unit in the embodiment is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods of each embodiment of the present disclosure. The storage medium for storing computer software products includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.

[0231] When the communication device 30 or the communication device 40 implements the functions of the integrated modules in the form of hardware, the embodiment of the present disclosure provides a schematic diagram of the structure of the communication device. Fig.14 As shown, the communication device 50 includes: a processor 502 , a communication interface 503 , and a bus 504 . Optionally, the communication device 50 may further include a memory 501 .

[0232] The processor 502 may be a device that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present disclosure. The processor 502 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present disclosure. The processor 502 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0233] The communication interface 503 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0234] The memory 501 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0235] As a possible implementation, the memory 501 may exist independently of the processor 502, and the memory 501 may be connected to the processor 502 via a bus 504 to store instructions or program codes. When the processor 502 calls and executes the instructions or program codes stored in the memory 501, the communication method provided in the embodiment of the present disclosure can be implemented.

[0236] In another possible implementation, the memory 501 may also be integrated with the processor 502 .

[0237] The bus 504 may be an extended industry standard architecture (EISA) bus, etc. The bus 504 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.14 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0238] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the first node or the second node is divided into different functional modules to complete all or part of the functions described above.

[0239] The disclosed embodiment also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by computer instructions to instruct the relevant hardware, and the program can be stored in the above computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The above computer-readable storage medium can also be an external storage device of the above first node or second node, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above first node or second node. Further, the above computer-readable storage medium can also include both the internal storage unit of the above first node or second node and an external storage device. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above first node or second node. The above computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0240] The embodiments of the present disclosure also provide a computer program product, which includes a computer program. When the computer program product is run on a computer, the computer is enabled to execute any one of the communication methods provided in the above embodiments.

[0241] Although the present disclosure is described herein in conjunction with various embodiments, in the process of implementing the claimed disclosure, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0242] Although the present disclosure has been described in conjunction with specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present disclosure. Accordingly, this specification and the drawings are merely exemplary illustrations of the present disclosure as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present disclosure. Obviously, those skilled in the art may make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

[0243] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: Applied to the first node, the method comprises: Receive first configuration information sent by a second node, wherein the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for the uplink UL that is continuous in the frequency domain and at least one resource block set for the downlink DL that is continuous in the frequency domain, the carrier is a time division duplex TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

2. The method according to claim 1, characterized in that In the case where the carrier is the TDD carrier, all time domain resources of the carrier are allowed to be configured to include a sub-band full-duplex SBFD sub-band, wherein the SBFD sub-band includes at least one of the following: a UL sub-band, a DL sub-band, and all time domain resources include at least one of the following: an orthogonal frequency division multiplexing OFDM symbol configured for a downlink, an OFDM symbol configured for an uplink, and a flexible OFDM symbol configured.

3. The method according to claim 2, characterized in that The method further comprises at least one of the following: In the TDD carrier, determining the intersection resources of the activated UL bandwidth part BWP and the UL subband in the frequency domain as the UL available physical resource block PRB of the first node; In the TDD carrier, determining the intersection resources of the activated DL BWP and the DL subband in the frequency domain as the DL available PRB of the first node; The UL available PRBs and the DL available PRBs in each symbol / time slot of the TDD carrier are both allowed to be configured to support simultaneous UL transmission and DL transmission for the same first node based on frequency division multiplexing FDM.

4. The method according to claim 1, characterized in that: In the case where the carrier is a carrier in the predefined carrier frequency band, the carrier is allowed to be configured with a SBFD subband, and the SBFD subband is configured in all time domain resources of the carrier, wherein the SBFD subband includes at least one of the following: an uplink UL subband, a downlink DL subband; The predefined carrier frequency band has the following characteristics: a carrier within the predefined carrier frequency band is allowed to be configured with at least one resource block set for uplink that is continuous in the frequency domain and at least one resource block set for downlink that is continuous in the frequency domain; The first node determines whether the first configuration information is valid in all time domain resources of a carrier based on a frequency band to which the carrier belongs.

5. The method according to claim 1, characterized in that In the case that the carrier is a carrier in the predefined carrier frequency band, the working mode of the carrier does not belong to the TDD mode or the frequency division duplex FDD mode.

6. The method according to claim 5, characterized in that The operating mode of the carrier meets the following requirements: UL transmission and DL transmission are supported in the carrier in an FDM manner.

7. The method according to claim 6, characterized in that Supporting UL transmission and DL transmission in an FDM manner within the carrier, including: The carrier is allowed to be configured in the UL available PRB and the DL available PRB of each symbol / time slot in the time domain to support simultaneous UL transmission and DL transmission for the same first node based on the FDM method.

8. The method according to claim 5, characterized in that Each symbol of the carrier in the time domain is allowed to be configured as M symbols or M time slots, wherein, in the M symbols or M time slots, the UL transmission and DL transmission of the same first node are allowed to be configured to be performed simultaneously in an FDM manner, and the M symbols do not belong to DL symbols and UL symbols, and the M time slots do not belong to DL time slots and UL time slots.

9. The method according to claim 1, characterized in that: In the case that the carrier is a carrier in the predefined carrier frequency band, the carrier is allowed to be configured with at least one DL subband for DL ​​transmission, and is allowed to be configured with at least one UL subband for UL transmission.

10. The method according to claim 9, characterized in that The DL subband and the UL subband are configured in all time-domain symbols of the carrier.

11. The method according to claim 9, characterized in that In the case that the carrier is a carrier in the predefined carrier frequency band, the UL BWP of the first node is configured to be based on the bandwidth of the UL subband, and the DL BWP of the first node is configured to be based on the bandwidth of the DL subband, wherein the UL BWP is configured within the bandwidth of the UL subband, and the DL BWP is configured within the bandwidth of the DL subband, and the carrier is allowed to be configured in the UL BWP and the DL BWP of each symbol / time slot to support simultaneous UL transmission and DL transmission for the same first node based on the FDM method.

12. The method according to any one of claims 3, 7 or 11, characterized in that The simultaneously performing UL transmission and DL transmission for the same first node based on the FDM method includes: Based on the first interval GAP ， The UL transmission and the DL transmission are simultaneously performed for the same first node within a UL available PRB and a DL available PRB, or, based on a first GAP, the UL transmission and the DL transmission are simultaneously performed for the same first node within a UL BWP and a DL BWP, wherein the first GAP is a minimum interval between the DL transmission and the UL transmission.

13. The method according to claim 12, characterized in that The level of the first GAP is determined based on the size of the first GAP.

14. The method according to claim 13, characterized in that The level of the first GAP is determined based on the size of the first GAP and a common GAP level, and the common GAP level is predefined.

15. The method according to claim 13, characterized in that The level of the first GAP and / or the size of the first GAP are determined based on the priority of the UL transmission and the priority of the DL transmission.

16. The method according to claim 12, characterized in that The level of the first GAP is associated with a time slot type.

17. The method according to claim 12, characterized in that The first GAP includes a second GAP, where the second GAP is a frequency domain interval between a DL subband and a UL subband.

18. The method according to claim 17, characterized in that Other frequency domain resources in the first GAP except the second GAP may be used for data transmission of other first nodes.

19. The method according to claim 12, characterized in that The method further comprises: Sending first indication information to the second node, where the first indication information is used to indicate at least one of the following: a plurality of the first GAPs, different first GAPs corresponding to different levels; a level of a first GAP supported by the first node; The size of a first GAP supported by the first node.

20. The method according to claim 12, characterized in that Based on the first GAP ， The method includes: performing the UL transmission and the DL transmission for the same first node simultaneously within a UL available PRB and a DL available PRB, or, based on the first GAP, performing the UL transmission and the DL transmission for the same first node simultaneously within a UL BWP and a DL BWP, including: When the target first GAP is greater than or equal to the first GAP, based on the first GAP ， Perform UL transmission and DL transmission simultaneously for the same first node within the UL available PRB and the DL available PRB, or, based on the first GAP, perform UL transmission and DL transmission simultaneously for the same first node within the UL BWP and the DL BWP, wherein the target first GAP is the interval between the UL transmission and DL transmission scheduled / configured by the second node for the first node.

21. The method according to claim 20, characterized in that When the target first GAP is smaller than the first GAP, the method further includes at least one of the following: not performing the UL transmission and the DL transmission; A target data transmission is performed, the target data transmission being one of the UL transmission and the DL transmission.

22. The method according to claim 21, characterized in that The target data transmission is the transmission with the earlier starting position among the UL transmission and the DL transmission; or, The target data transmission is the transmission with the largest number of symbols among the UL transmission and the DL transmission; or, The target data transmission is randomly determined from the UL transmission and the DL transmission; or, The target data transmission is pre-negotiated; or, The target data transmission is configured on the network side.

23. A communication method, characterized in that: Applied to the second node, the method comprises: First configuration information is sent to a first node, wherein the first configuration information is used to determine that the frequency domain resources of a carrier include at least one resource block set for UL that is continuous in the frequency domain and at least one resource block set for DL ​​that is continuous in the frequency domain, the carrier is a TDD carrier or a carrier in a predefined carrier frequency band, and the resource block set for UL and the resource block set for DL ​​are allowed to be configured in all time domain resources of the carrier.

24. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 23 is performed.

25. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to perform the method according to any one of claims 1 to 23.

26. A computer program product, characterized in that The computer program product comprises computer instructions, which, when executed on a computer, cause the computer to perform the method according to any one of claims 1 to 23.

Images