Communication method and apparatus, storage medium, and program product

Abstract

Provided are a communication method and apparatus, a storage medium, and a program product, relating to the technical field of communications. The method is applied to a first node, and comprises: receiving first configuration information sent by a second node, wherein the first configuration information is used for determining that a frequency domain resource of one carrier comprises at least one resource block set that is contiguous in frequency domain and used for UL and at least one resource block set that is contiguous in frequency domain and used for DL; the carrier is a TDD carrier or a carrier in a predefined carrier frequency band; and the resource block set used for UL and the resource block set used for DL are allowed to be configured within all time domain resources of the carrier.

Description

Communication methods, devices, storage media and software products

[0001] This disclosure claims priority to Chinese patent application No. 202510240712.9, filed on February 28, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a communication method, apparatus, storage medium, and program product. Background Technology

[0003] In related technologies, the bandwidth part (BWP) operates as follows: For a time division duplex (TDD) carrier, downlink (DL) BWP and uplink (UL) BWP are configured. However, the DL BWP is effective in DL symbols (including DL symbols converted from flexibility (F) symbols via configuration signaling), but not in UL symbols. Similarly, the UL BWP is effective in UL symbols (including UL symbols converted from flexibility symbols via configuration signaling), but not in DL symbols. Therefore, DL transmissions cannot be executed in a timely manner during the duration of UL symbols. Summary of the Invention

[0004] Firstly, a communication method is provided, applied to a first node, including:

[0005] The system receives 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 set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

[0006] Secondly, a communication method is provided for use on a second node, including:

[0007] Send first configuration information to the first node. The first configuration information is used to determine that the frequency domain resources of a carrier include at least one set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

[0008] Thirdly, a communication device is provided for use in a first node, comprising:

[0009] The receiving unit is configured to receive first configuration information sent by the second node. The first configuration information is configured to determine that the frequency domain resources of a carrier include at least one set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

[0010] Fourthly, a communication device is provided for use in a second node, comprising:

[0011] The transmitting unit is configured to transmit first configuration information to the first node. The first configuration information is configured to determine that the frequency domain resources of a carrier include at least one set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

[0012] Fifthly, 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, the memory storing the processor-executable instructions; when the processor is configured to execute the instructions, the communication device performs the method provided by either the first or second aspect described above.

[0013] A sixth aspect provides a computer-readable storage medium, including a non-transitory computer-readable storage medium storing computer instructions that, when executed on a computer, cause the computer to perform the method provided by either the first or second aspect described above.

[0014] In a seventh aspect, a computer program product comprising computer instructions is provided, which, when executed on a computer, cause the computer to perform the method provided in either the first or second aspect described above. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are merely drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings.

[0016] Figure 1 is a structural diagram of an SBFD subband provided according to an embodiment of the present disclosure.

[0017] Figure 2 is a structural diagram of another SBFD subband provided according to an embodiment of the present disclosure.

[0018] Figure 3 is a structural diagram of an IBFD subband provided according to an embodiment of the present disclosure.

[0019] Figure 4 is a structural diagram of a communication system provided according to an embodiment of the present disclosure.

[0020] Figure 5 is a flowchart of a communication method provided according to an embodiment of the present disclosure.

[0021] Figure 6 is a structural diagram of a carrier wave provided according to an embodiment of the present disclosure.

[0022] Figure 7 is a structural diagram of another carrier provided according to an embodiment of the present disclosure.

[0023] Figure 8 is a structural diagram of another carrier provided according to an embodiment of the present disclosure.

[0024] Figure 9 is a structural diagram of another carrier provided according to an embodiment of the present disclosure.

[0025] Figure 10 is a structural diagram of another carrier provided according to an embodiment of the present disclosure.

[0026] Figure 11 is a flowchart of another communication method provided according to an embodiment of the present disclosure.

[0027] Figure 12 is a block diagram of a communication device provided according to an embodiment of the present disclosure.

[0028] Figure 13 is a block diagram of another communication device provided according to an embodiment of the present disclosure.

[0029] Figure 14 is a block diagram of another communication device provided according to an embodiment of the present disclosure. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions of the embodiments of this disclosure, the technical solutions of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0031] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and other forms such as the third-person singular "comprises" and the present participle "comprising" are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0033] In this disclosure, the terms "exemplarily" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplarily" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the terms "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0034] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0035] To improve UL coverage, reduce UL transmission latency, and increase UL transmission capacity in TDD systems, subband full-duplex technology for connected-mode user equipment (UE) in radio resource control (RRC) mode has been proposed.

[0036] In related technologies, UL subbands can be configured in some or all DL symbols or F symbols, but not in UL symbols. For example, a UL subband can be configured in a DL symbol, and simultaneously, a DL subband can also be configured in that DL symbol. That is, the UL subband and DL subband (also known as subband full duplex (SBFD) subbands) are configured simultaneously in either a DL symbol or an F symbol. The symbol configured with SBFD subbands is called an SBFD symbol, and the symbol without SBFD subbands is called a non-SBFD symbol. However, the UL subband and DL subband are prohibited from being configured in UL symbols. In this case, the UL BWP is used for UL transmission in the UL symbol, and the UL subband is used for uplink transmission in the SBFD symbol. However, the interference conditions in the UL BWP and UL subband are different, so the corresponding UL transmission requires corresponding transmission parameters and configuration parameters to accommodate UL transmission in the UL BWP and UL subband respectively. This complicates the design of UL transmission in the system.

[0037] To further improve system efficiency, full-duplex technology has been researched, such as in-band full duplex (IBFD) operation. This means configuring a time-frequency resource within the carrier bandwidth of a carrier, allowing the base station to perform simultaneous transmission and reception on the same frequency. For example, consecutive resource blocks (RBs) can be configured as IBFD subbands within the carrier bandwidth, and these IBFD subbands can be configured in all or some symbols to form a resource for IBFD operation. However, in future systems, how to configure / update the aforementioned IBFD subbands and their configuration is addressed below.

[0038] The aforementioned UL sub-band and DL sub-band are also referred to as SBFD sub-bands, which means that an SBFD sub-band is configured in the DL BWP in the DL symbol / slot. The SBFD sub-band generally includes at least one DL sub-band and one UL sub-band.

[0039] For example, in a 100MHz TDD carrier, 20 consecutive RBs are configured as the UL subband in the DL BWP within the DL symbol / slot. The remaining frequency domain resources of the DL BWP are the DL subband (the gap can be omitted). Alternatively, a DL subband can also be configured in the DL BWP within the DL symbol / slot. Thus, within 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 shows a structural diagram of an SBFD subband according to an embodiment of this disclosure. In Figure 1, an SBFD subband includes one UL subband and two DL subbands. This frequency domain pattern is generally referred to as "DUD" (based on frequency domain structure). Here, D represents downlink DL, and U represents uplink UL. Figure 2 shows another structural diagram of an SBFD subband according to an embodiment of this disclosure. In Figure 2, an SBFD subband includes one UL subband and one DL subband, with the UL subband located below the DL subband. This frequency domain pattern is generally referred to as "DU" (based on frequency domain structure).

[0040] Currently, subband full-duplex technology includes the following characteristics:

[0041] The base station is capable of simultaneously performing reception (in the UL subband) and transmission (in the DL subband) in the same time domain. The UE is not capable of simultaneously performing reception (in the DL subband) and transmission (in the UL subband) in the same time domain. Here, the UL subband and DL subband are configured in the same OFDM symbol / slot and are frequency-division multiplexed.

[0042] For ease of description, some technical terms are as follows:

[0043] Symbols configured with SBFD subbands are called SBFD symbols. Slots containing SBFD symbols are called SBFD slots. Symbols not configured with SBFD subbands are called non-SBFD symbols (i.e., a regular symbol). Slots not containing SBFD symbols are called non-SBFD slots.

[0044] In some examples, the above-mentioned SBFD subband operation is performed within the DL BWP and UL BWP pair, and the DL BWP and UL BWP pair are center frequency aligned.

[0045] In some examples, DL sub-bands and UL sub-bands are defined first, then DL BWP is defined in the DL sub-band, and UL BWP is defined in the UL sub-band.

[0046] In this embodiment of the disclosure, a carrier can be a cell; or a carrier can be a sub-cell in a supercell, which contains multiple sub-cells (or multiple carriers); or in this embodiment of the disclosure, if the carrier is a supercell, then the DL subband or UL subband in this embodiment of the disclosure corresponds to a sub-cell in the supercell, and a sub-cell corresponds to an independent carrier.

[0047] Figure 3 is a structural diagram of an IBFD subband provided according to an embodiment of the present disclosure. Referring to Figure 3, part or all of the carrier bandwidth of a carrier is configured as an IBFD subband, and the IBFD is configured in all or part of the symbols.

[0048] The intersection of the UL subband and the active UL BWP in the frequency domain is called the UL available physical resource block (PRB), and the intersection of the DL subband and the active DL BWP in the frequency domain is called the DL available PRB.

[0049] Symbols configured with IBFD subbands are called IBFD symbols. Slots containing IBFD symbols are called IBFD slots. Symbols not configured with IBFD subbands are called non-IBFD symbols (i.e., a regular symbol). Slots not containing IBFD symbols are called non-IBFD slots.

[0050] As described above regarding the working mechanism of BWP, DL BWP is effective in DL symbols (including DL symbols converted from flexible (F) symbols via configuration signaling) but not in UL symbols. UL BWP is effective in UL symbols (including UL symbols converted from flexible (F) symbols via configuration signaling) but not in DL symbols. Therefore, in the time domain, TDD carriers cannot configure both DL BWP and UL BWP in all symbols. Consequently, DL transmission cannot be performed in a timely manner during the duration of UL symbols.

[0051] In related technologies, the base station supports full-duplex operation based on SBFD subbands, but the UE side still operates in half-duplex mode, with time division multiplexing (TDM) operation occurring between DL and UL. The SBFD subband mechanism works as follows: for a TDD carrier, DL and UL subbands are configured in DL and F symbols. That is, DL and UL subbands are not configured in UL symbols. Thus, in the time domain, the TDD carrier cannot have DL and UL subbands configured in all symbols. Therefore, DL transmission cannot be performed in a timely manner during the duration of the UL symbol.

[0052] In summary, in the relevant technologies, DL transmission and UL transmission cannot be executed in a timely manner.

[0053] Based on this, embodiments of this disclosure provide a communication method, apparatus, storage medium, and program product. 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 set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier to configure the TDD carrier or the carrier in the predefined carrier frequency band as an "FDD" carrier, thereby enabling UL transmission and DL transmission to be executed in a timely manner.

[0054] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0055] The technical solutions provided in this disclosure can be applied to various communication systems that support pragmatic communication, such as new radio (NR) communication systems using 5th generation mobile networks (5G), future evolution systems, long term evolution (LTE) systems, or multiple communication convergence systems, etc. This disclosure does not limit them.

[0056] Figure 4 is a structural diagram of a communication system provided according to an embodiment of the present disclosure. As shown in Figure 4, the communication system includes, but is not limited to, a base station 110 and a terminal 120. Here, the base station 110 and the terminal 120 can transmit and receive wireless signals and perform related interactions.

[0057] In some embodiments, base station 110 can connect to multiple terminals 120. The multiple terminals 120 can be located in the same cell or in different cells. That is, a base station 110 can provide network services to terminals 120 in one cell or simultaneously provide network services to terminals 120 in multiple cells.

[0058] In some embodiments, base station 110 is used to provide wireless access services to terminal 120. Specifically, each base station 110 provides a service coverage area (also known as a cellular area). Terminal 120 entering this area can communicate with the base station via wireless signals to receive the wireless access services provided by base station 110. The service coverage areas of base stations 110 may overlap, and terminal 120 in the overlapping area can receive wireless signals from multiple base stations 110.

[0059] In this disclosure, base station 110 can be a base station in Long Term Evolution (LTE), Long Term Evolution Advanced (LTEA), or an evolved Node B (eNB or eNodeB), a base station device in a 5G network, or a base station in a future communication system (such as 6G). The base station can include various macro base stations, micro base stations, home base stations, wireless remote extensions, reconfigurable intelligent surfaces (RISS), routers, wireless fidelity (WIFI) devices, or various network-side devices such as primary cells and secondary cells.

[0060] In this disclosure, terminal 120 is a device with wireless transceiver capabilities, which can be deployed on land, including indoors or outdoors; it can also be deployed on water (such as on ships); and it can also be deployed in the air (such as on airplanes, balloons, and satellites). The terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. The embodiments of this disclosure do not limit the application scenarios. A terminal may also be referred to as a user, user equipment, access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device, etc. The embodiments of this disclosure are not limited to these.

[0061] Figure 4 is an exemplary structural diagram. The number of devices included in the communication system shown in Figure 4 is unlimited, for example, the number of base stations and terminals is unlimited. Furthermore, in addition to the devices shown in Figure 4, the communication system shown in Figure 4 may also include other devices, which are not limited.

[0062] Next, as shown in Figure 5, this embodiment of the present disclosure provides a communication method applied to a first node, which can be a terminal, for example, the first node can be the terminal 120 shown in Figure 4 above. The method can include the following steps:

[0063] S101, Receive the first configuration information sent by the second node.

[0064] Here, the first configuration information is used to determine that the frequency domain resources of a carrier include at least one set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

[0065] The second node can be a network-side device, such as a base station, which can be the base station 110 shown in Figure 4 above.

[0066] In some embodiments, a carrier described above may be a cell.

[0067] In some embodiments, if the aforementioned carrier can be a cell, then the set of resource blocks that are consecutive in the frequency domain for DL ​​corresponds to a portion of the frequency domain resources of the cell and is used for DL ​​(e.g., the DL subband in the SBFD subband), and the set of resource blocks that are consecutive in the frequency domain for UL corresponds to a portion of the frequency domain resources of the cell and is used for UL (e.g., the UL subband in the SBFD subband).

[0068] In some embodiments, the aforementioned carrier is a sub-cell in a supercell, which contains multiple sub-cells (or multiple carriers).

[0069] In some embodiments, if the aforementioned carrier is a supercell, then the set of frequency-domain contiguous resource blocks for deep learning (DL) corresponds to a subcell for DL ​​within that supercell, and the set of frequency-domain contiguous resource blocks for low-frequency access (UL) corresponds to a subcell for UL within that supercell. Here, each subcell corresponds to an independent carrier.

[0070] In some embodiments, the frequency domain resource of a carrier refers to the carrier bandwidth used for communication within that carrier.

[0071] In some embodiments, the frequency domain resource of a carrier refers to the bandwidth of that carrier.

[0072] 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 aforementioned carriers. If the UE is configured with one of the carriers in the carrier frequency band, or if the UE accesses one of the carriers in the carrier frequency band, then the UE can be configured with the aforementioned first configuration information. That is, if the UE is configured with one of the carriers in the carrier frequency band, the UE knows based on the carrier frequency band to which the carrier belongs that the carrier can be configured based on the aforementioned first configuration information.

[0073] In some embodiments, after receiving the first configuration information, the first node can determine the frequency domain resources 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 resources of the carrier.

[0074] The description of the first configuration information may include the following example:

[0075] 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. Here, the SBFD subbands include at least one of the following: UL subband, DL subband, and all time-domain resources include at least one of the following: OFDM symbols configured for downlink, OFDM symbols configured for uplink, and OFDM symbols configured as flexible.

[0076] For example, SBFD subbands can also be configured in UL symbols / slots. Exemplarily, as shown in FIG6, is a structural diagram of a carrier according to an embodiment of this disclosure. Referring to FIG6, in the case of a TDD carrier, the TDD carrier is configured with UL symbols / slots and DL symbols / slots. DL subbands and UL subbands are configured in each symbol / slot of the TDD carrier. Here, the DL subbands and UL subbands are “DU” patterns in the frequency domain, and can also be configured as “UD”, “DUD”, or “UDU”.

[0077] In some embodiments, the DL subband and UL subband described above are at the cell level.

[0078] In some embodiments, when the carrier is a TDD carrier, the first node may also determine at least one of the following:

[0079] In TDD carriers, the intersection resources of the activated UL BWP and UL subband in the frequency domain are determined as the UL available PRB of the first node;

[0080] In TDD carriers, the intersection resources of the activated DL BWP and DL subband in the frequency domain are determined as the DL available PRB of the first node;

[0081] Here, the UL-available PRB and DL-available PRB in each symbol / slot of the TDD carrier can be configured to support simultaneous UL and DL transmissions for the same first node based on frequency division multiplexing (FDM). In other words, the UL-available PRB and DL-available PRB in each symbol / slot of a carrier configured in the first configuration information can be configured to support simultaneous UL and DL transmissions for the same first node based on FDM, thereby ensuring timely execution of DL and UL transmissions.

[0082] In some embodiments, the UL available PRB is used for UL transmission of the first node, and the DL available PRB is used for DL ​​transmission of the first node. The DL subband and UL subband are configured based on the carrier bandwidth of the TDD carrier.

[0083] The UL BWP and DL BWP are configured based on the carrier bandwidth of the TDD carrier.

[0084] Example 2: When the carrier is a carrier in a predefined carrier frequency band, the carrier is allowed to be configured with SBFD subbands, and the SBFD subbands are configured in all time domain resources of the carrier. Here, the SBFD subbands include at least one of the following: uplink UL subband and downlink DL subband.

[0085] In some embodiments, the SBFD subband is configured based on the carrier bandwidth of a carrier in a predefined carrier band.

[0086] In some embodiments, 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 in the frequency domain for uplink and at least one set of resource blocks in the frequency domain for downlink;

[0087] In some embodiments, the first node determines whether the first configuration information is valid across all time-domain resources of a carrier based on the frequency band to which the carrier belongs.

[0088] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the carrier's operating mode is neither TDD mode nor FDD mode. That is, when the carrier is a carrier in a predefined carrier frequency band, the carrier has a new operating mode.

[0089] The carrier's operating mode must meet the following requirements:

[0090] UL and DL transmissions are supported within the carrier using FDM. For example, UL and DL subbands are simultaneously configured in the frequency domain in each symbol / slot of the carrier, with the UL subband used for UL transmission and the DL subband used for DL ​​transmission. Two examples can be illustrated in Figures 7 and 8, which are structural diagrams of another carrier provided according to embodiments of this disclosure.

[0091] In some embodiments, the UL-available PRB and DL-available PRB of each symbol / slot in the time domain can be configured to support simultaneous UL and DL transmissions for the same first node based on FDM. That is, each symbol / slot of the carrier in the predefined carrier band can simultaneously support UL and DL transmissions based on FDM in the time domain.

[0092] 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 an M symbol or an M time slot. Here, in an M symbol or an M time slot, UL transmission and DL transmission of the same first node are allowed to be configured to be executed simultaneously in FDM mode. The M symbol does not belong to the DL symbol and the UL symbol, and the M time slot does not belong to the DL time slot and the UL time slot.

[0093] That is, the symbol / slot in this carrier is denoted as M symbol / M slot, and the M symbol / M slot does not belong to the DL symbol / slot and UL symbol / slot. Here, the DL subband and UL subband are "DU" pattern and "DUD" pattern in the frequency domain, and can also be configured as "UD" or "UDU".

[0094] In some embodiments, the DL subband and UL subband described above are at the cell level.

[0095] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the first node may also determine at least one of the following:

[0096] Within a predefined carrier frequency band, the intersection resources of the activated UL BWP and UL subband in the frequency domain are determined as the UL available PRB of the first node;

[0097] Within a predefined carrier frequency band, the intersection resources of the activated DL BWP and DL subband in the frequency domain are determined as the DL available PRB of the first node;

[0098] Here, the UL available PRB and DL available PRB in each symbol / time slot of the carrier in the predefined carrier band can be configured to support simultaneous UL and DL transmissions for the same first node based on FDM.

[0099] The DL subband and UL subband are configured based on the carrier bandwidth of the carrier in the predefined carrier band. The UL BWP and DL BWP are configured based on the carrier bandwidth of the carrier in the predefined carrier band.

[0100] Example 3: In the case where 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 at least one UL subband for UL transmission.

[0101] In some embodiments, DL subbands and UL subbands are configured in all time-domain symbols of the carrier.

[0102] In some embodiments, the DL subband and UL subband are configured based on the carrier bandwidth of the carrier in the predefined carrier band.

[0103] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the UL BWP of the first node is configured based on the bandwidth of the UL subband, and the DL BWP of the first node is configured based on the bandwidth of the DL subband. Here, 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. The carrier is allowed to be configured in both the UL BWP and DL BWP of each symbol / time slot to support simultaneous UL and DL transmissions for the same first node based on FDM.

[0104] For example, the UL subband and DL subband are simultaneously configured in the frequency domain in each symbol / slot of the carrier in the predefined carrier band. The UL subband is used for UL transmission, and the DL subband is used for DL ​​transmission. Two examples can be shown in Figures 9 and 10, which are structural diagrams of another carrier provided according to embodiments of the present disclosure.

[0105] Each symbol / slot of a carrier in this predefined carrier band can simultaneously support UL and DL transmission based on FDM in the time domain. The symbol / slot of a carrier in this predefined carrier band is denoted as M symbol / M slot, which does not belong to either DL symbol / slot or UL symbol / slot. The DL subband and UL subband here are represented by the "DU" and "DUD" patterns in the frequency domain, respectively, and can also be configured as "UD" or "UDU".

[0106] For a first node configured with a carrier in a predefined carrier band, the UL BWP of the first node is configured based on the bandwidth of the UL subband, and the DL BWP of the first node is configured based on the bandwidth of the DL subband.

[0107] In other words, the UL BWP is configured within the frequency domain of the UL subband and is valid in all symbols / slots. The DL BWP is configured within the frequency domain of the DL subband and is valid in all symbols / slots. The DL and UL subbands are configured based on the carrier bandwidth of the carrier in the predefined carrier band. The UL BWP is activated as an active UL BWP for UL transmission, and the DL BWP is activated as an active DL BWP for DL ​​transmission. The subcarrier spacing and cyclic prefix corresponding to the UL BWP are the same as those associated with the UL subband. The subcarrier spacing and cyclic prefix corresponding to the DL BWP are the same as those associated with the DL subband.

[0108] The DL BWP of the first node can be replaced with a DL sub-band dedicated to the first node. The UL BWP of the first node can be replaced with a UL sub-band dedicated to the first node.

[0109] Based on the methods provided in Examples 1 to 3 above, the first node can obtain a set of resource blocks for UL (Ultra-Low) transmission and a set of resource blocks for DL ​​(Long-Low) transmission that are consecutive in the frequency domain within a single carrier. The UL and DL transmissions of the first node can be performed within their respective resource block sets. Alternatively, the resource block sets for DL ​​and UL transmissions can be obtained in other ways, and this disclosure does not limit the scope of the embodiments.

[0110] The UL and DL transmissions of the first node can be scheduled / configured within the corresponding resource block set and use the same time-domain resources (or the DL and UL transmissions can at least partially overlap in the time domain). For example, in the second and last slots of Figures 6-10, the DL and UL transmissions of the first node are executed simultaneously based on the same time-domain resources (in the same symbol within the same slot).

[0111] In some embodiments, the first node performs both DL transmission and UL transmission simultaneously based on the frequency domain resources configured by the first configuration information.

[0112] One execution method on the first node side is that the first node treats DL transmission and UL transmission as DL transmission in the DL carrier and UL transmission in the UL carrier of the FDD system / mode, respectively, and adopts the FDD mode mechanism to simultaneously perform DL transmission reception and UL transmission transmission.

[0113] Furthermore, to minimize the complexity of the first node while ensuring the performance of DL and UL transmissions, a first frequency domain gap is introduced between the UL and DL transmissions. The complexity is reduced and performance is ensured based on the setting of this first gap. Here, the first gap is the interval between the DL and UL transmissions. Gap 1 in Figures 6-10 is the first gap, and the intervals in Figures 6-10 are the second gap. The second gap is the frequency domain interval between the DL subband and the UL subband. The second gap is an existing gap, while the first gap is a new gap provided by this embodiment.

[0114] The first gap is described below.

[0115] Referring to the "DU" frequency domain diagrams in Figures 6-8, the first GAP is defined from the lower boundary of the smallest RB in the DL transmission of the first node to the upper boundary of the largest RB in the UL transmission. For example, suppose an RB contains 12 subcarriers. The lower boundary of the smallest RB in the DL transmission refers to the center of the smallest subcarrier of the smallest 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 largest RB in the UL transmission refers to the center of the largest subcarrier of the largest RB among the RBs configured for the UL transmission and within the frequency domain range of the UL transmission of the first node.

[0116] If the frequency domain pattern configured for the DL and UL subbands is "UD", then the definition of the first GAP can be adaptively modified. For example, the first GAP can be defined as the distance from the lower boundary of the smallest RB in the UL transmission of the first node to the upper boundary of the largest RB in the DL transmission. For example, suppose an RB contains 12 subcarriers. The lower boundary of the smallest RB in the UL transmission refers to the center of the smallest subcarrier of the smallest RB within the frequency domain range of the UL transmission configured for the UL transmission. The upper boundary of the largest RB in the DL transmission refers to the center of the largest subcarrier of the largest RB within the frequency domain range of the DL transmission configured for the DL transmission.

[0117] The second gap will be introduced below.

[0118] In some embodiments, the first GAP includes a second GAP, which is the frequency domain spacing between the DL subband and the UL subband.

[0119] Referring to Figures 6 to 10, the second GAP is the frequency domain spacing between the DL subband and the UL subband. The second GAP corresponds to the spacing in Figures 6 to 10, and the first GAP corresponds to spacing 1 in Figures 6 to 10.

[0120] 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, the first indication information being used to indicate at least one of the following:

[0121] Multiple first gaps, with different first gaps corresponding to different levels;

[0122] The first node supports the first GAP level;

[0123] The size of the first gap supported by the first node.

[0124] For example, based on its own capabilities, the first node can report a suitable first gap (GAP) to support DL reception and UL transmission in FDM mode within the same time domain resources. The first GAP can be described based on the number of redundancy blocks (RBs). Clearly, the first GAP can also be described based on subcarriers. The subcarrier spacing corresponding to this RB or subcarrier is the same as the subcarrier spacing associated with the DL and UL subbands.

[0125] After receiving the first gap reported by the first node, the second node can schedule / configure the first node's DL and UL transmissions to be executed in the same time domain resources using FDM, with at least one gap between them. The time domain resources of the DL and UL transmissions can partially or completely overlap in the time domain. For example, in Figures 6 to 10, the DL and UL transmissions overlap in the time domain and are scheduled in frequency division multiplexing (FDM). 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. Here, in Figures 8 and 10, the two DL transmissions and one UL transmission overlap in the time domain and are scheduled in FDM. Both first gaps need to be greater than or equal to the size of the first gap reported by the first node.

[0126] 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.

[0127] If the first gap supported by the first node is less than or equal to the second gap, then the first node does not need to report the first gap, thus saving signaling overhead. Alternatively, the first and second nodes agree that if the first node does not report the first gap, then the second node assumes that the first node can support a first gap of the size of the second gap. Alternatively, the first and second nodes agree that if the first node does not report the first gap, then the second node assumes that the first node does not support simultaneous DL and UL transmissions.

[0128] The following is an introduction to the classification of the first gap.

[0129] Because different transmission requirements have different performance levels, the size of the first gap can also be classified, for example, into gap A and gap B. Different levels of the first gap have different frequency domain sizes and are associated with corresponding transmission performance. Therefore, the level of the first gap is determined based on its size.

[0130] Assume that transmissions are divided into high-priority and low-priority types. High-priority transmissions require high performance, so they correspond to gap A. Low-priority transmissions have lower performance than high-priority transmissions, so they correspond to gap B. Here, gap A is greater than gap B.

[0131] In other words, 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 and / or size of the first gap is determined based on the priority of the UL transmission and the priority of the DL transmission.

[0132] If at least one of two overlapping DL and UL transmissions in the time domain is a high-priority transmission, then the gap between the DL and UL transmissions must satisfy at least gapA; otherwise, the gap between the DL and UL transmissions must satisfy at least gapB.

[0133] If two overlapping DL and UL transmissions 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 and UL transmissions must satisfy at least gapA (set a larger first GAP); otherwise, the gap between the DL and UL transmissions must satisfy at least gapB.

[0134] If two overlapping DL and UL transmissions 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 and UL transmissions must satisfy at least gapA (set a larger first gap); otherwise, the gap between the DL and UL transmissions must satisfy at least gapB.

[0135] In other words, the first GAP is determined based on the priority of the corresponding DL and UL transmissions (e.g., high priority or low priority), or based on whether the corresponding DL and UL transmissions are UE-level or public-level, or based on whether the corresponding DL and UL transmissions are control signaling or non-control signaling.

[0136] This could also include a method for prohibiting transmissions. 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 is fully utilized, the first node will only execute the transmission corresponding to the high-priority transmission and discard the transmission corresponding to the low-priority transmission.

[0137] In some embodiments, the level of the first gap is associated with the time slot or symbol type. For example, in a DL slot / symbol, the first gap requirement between the aforementioned DL transmission and UL transmission of the first node is one level. In a UL slot / symbol, the first gap requirement between the aforementioned DL transmission and UL transmission of the first node is another level.

[0138] In some embodiments, the grade of the first gap is determined based on the size of the first gap and the common gap grade, which is predefined. The common gap grade is described below.

[0139] To reduce the complexity of the first gap at the first node level—for example, if each first node has a different first gap, it will make the scheduling algorithm for the second node more complex—a common gap level was proposed.

[0140] The second node and the first node agree to predefine N common GAP levels. For example, the first common GAP level contains 2 RBs, the second common GAP level contains 4 RBs, the third common GAP level contains 6 RBs, the fourth common GAP level contains 8 or more RBs, and so on. The number of levels can be configured via signaling; for example, the first node can configure 4 types of common GAP levels, or a maximum of 4 types. The number of RBs corresponding to each common GAP level can also be configured via signaling.

[0141] After the common gap level is configured by signaling, the first node can report the common gap levels it supports. The second node ensures that the number of RBs between the DL and UL transmissions scheduled for the first node is not less than the number of RBs corresponding to the common gap level reported by the first node. In other words, the first node reports the common gap level that is suitable for its own capabilities.

[0142] In some embodiments, in order to improve the utilization of frequency domain resources (e.g., RB) in the first GAP, other frequency domain resources in the first GAP, excluding the second GAP, can be used for data transmission of other first nodes.

[0143] In some embodiments, no transmissions are allowed to be 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 after removing the frequency domain resources of the second GAP in the first GAP can be reused for transmissions of another first node.

[0144] Suppose that for a first node (e.g., UE1), a second node is configured to perform DL and UL transmissions simultaneously. Here, the first gap between the DL and UL transmissions is 8 beamwidths (RBs). Assume that 4 of these 8 RBs are in the second gap, and the other 4 are in the DL subband. The second node can schedule the DL transmissions of other first nodes (e.g., UE2) to be in these other 4 RBs, thus avoiding wasting RBs in the first gap. To reduce interference between the DL transmissions of other first nodes in these other 4 RBs and the DL / UL transmissions of the first node, the first node and other first nodes should have different beam directions. For example, the first node and other second nodes may have significant geographical differences.

[0145] The first node can also report to the second node whether data transmission is allowed in the RBs of the first node's corresponding first GAP. If the first node reports that data transmission is not allowed, then the RBs in the first node's first GAP should be prohibited from scheduling transmission and kept idle; otherwise, the RBs in the first node's first GAP should be allowed to schedule transmission.

[0146] The first gap can also serve as the minimum frequency domain interval between DL-available PRBs and UL-available PRBs. If the minimum frequency domain interval between the DL-available PRBs and UL-available PRBs of a first node is greater than or equal to the first gap, the second node is allowed to schedule time-overlapping DL and UL transmissions for that first node within those DL-available PRBs and UL-available PRBs, respectively. This approach allows for arbitrary scheduling of time-overlapping DL and UL transmissions within the DL-available PRBs and UL-available PRBs, reducing scheduling complexity. Alternatively, the first gap can also serve as the minimum frequency domain interval between DL BWPs and UL BWPs (e.g., based on Example 3 or the DL BWPs and UL BWPs obtained in Figures 9 and 10). If the minimum frequency domain interval between the DL BWP and UL BWP of a first node is greater than or equal to the first gap, the second node is allowed to schedule time-overlapping DL and UL transmissions for that first node within those DL BWPs and UL BWPs, respectively. This approach allows for arbitrary scheduling of time-overlapping DL and UL transmissions within the DL BWPs and UL BWPs, reducing scheduling complexity.

[0147] Based on the above description of the first GAP, the FDM-based method for simultaneously performing UL and DL transmissions on the same first node includes:

[0148] Based on the first GAP, UL and DL transmissions can be performed simultaneously for the same first node within both the UL-available PRB and the DL-available PRB, or, based on the first GAP, UL and DL transmissions can be performed simultaneously for the same first node within both the UL BWP and the DL BWP.

[0149] In some embodiments, the first node should report different levels of first GAP to accommodate time-domain overlapping DL and UL transmissions with different performance requirements.

[0150] In some embodiments, the first node does not expect the first gap between time-domain overlapping DL and UL transmissions to be scheduled / configured to be unmet. That is, the second node ensures that the first gap is met when scheduling / configuring time-domain overlapping DL and UL transmissions.

[0151] In some embodiments, if the second node schedules / configures time-domain overlapping DL and UL transmissions for the first node, the target first gap between the DL and UL transmissions should be no less than the first gap corresponding to the first node.

[0152] In some embodiments, if the second node schedules / configures time-domain overlapping DL and UL transmissions for the first node and the target first GAP between the DL and UL transmissions is less than the first GAP corresponding to the first node, then at least one of the following is performed:

[0153] 1) The first node does not perform this DL and UL transmission;

[0154] 2) The first node executes only the DL and UL transmission with the earlier start position. For DL ​​and UL transmissions with the same start position, the transmission with more symbols is executed. For DL ​​and UL transmissions with the same start position and the same number of symbols, a transmission is randomly selected for execution.

[0155] 3) The first and second nodes agree to always perform DL or UL transmission.

[0156] 4) The first and second nodes configure the UE through signaling and perform DL transmission or UL transmission.

[0157] 5) The second node configures the transmission direction of the slot where the DL transmission or UL transmission is located via signaling (e.g., UL priority or DL ​​priority), and the UE determines the corresponding DL transmission or UL transmission to be executed based on the configured transmission direction.

[0158] 6) The first node only executes the transmission with the earlier PDCCH among the DL and UL transmissions. For PDCCHs with the same start position, the transmission corresponding to the PDCCH with more symbols is executed. For PDCCHs with the same start position and the same number of symbols, a transmission is randomly selected for execution.

[0159] 7) The first node only executes the transmission with the earlier PDCCH among the DL and UL transmissions. For PDCCHs with the same starting position, a transmission is randomly selected for execution.

[0160] Based on this, the above-mentioned simultaneous UL and DL transmissions within the same first node in both the UL-available PRB and the DL-available PRB, based on the first GAP, or simultaneous UL and DL transmissions within the same first node in both the UL BWP and the DL BWP, include:

[0161] If the target first GAP is greater than or equal to the first GAP, based on the first GAP, UL transmission and DL transmission are performed simultaneously for the same first node within the UL available PRB and the DL available PRB. Alternatively, based on the first GAP, UL transmission and DL transmission are performed simultaneously for the same first node within the UL BWP and the DL BWP. Here, the target first GAP is the interval between UL transmission and DL transmission scheduled / configured by the second node for the first node.

[0162] When the target first gap is smaller than the first gap, the method further includes at least one of the following:

[0163] UL and DL transfers are not performed.

[0164] Perform the target data transmission, which is either a UL transmission or a DL transmission.

[0165] Here, the target data transmission is the transmission that starts first in the UL transmission and DL transmission; or,

[0166] The target data transmission is the one with the most symbols between UL and DL transmissions; or,

[0167] The target data transmission is randomly determined from UL transmission and DL transmission; or,

[0168] The target data transmission is pre-negotiated; or,

[0169] The target data transmission is configured on the network side.

[0170] Based on the design of the first GAP mentioned above, a sub-band full-duplex design scheme can be implemented on the UE side.

[0171] Based on the embodiment shown in Figure 4, 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 set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier to configure the TDD carrier or the carrier in the predefined carrier frequency band as an "FDD" carrier, that is, to have DL subband and UL subband in all symbols, or to have DL BWP and UL BWP, so that UL transmission and DL transmission can be transmitted in a timely manner.

[0172] The above embodiment illustrates the example of the first configuration information being sent from the second node to the first node. In some embodiments, the first configuration information may also be predefined. In this case, there is no need to perform the step of the first node receiving the first configuration information sent by the second node. Step S101 can be replaced by the first node obtaining the first configuration information. The first node obtaining the first configuration information may be done by retrieving the first configuration information from the first node's memory.

[0173] In some embodiments, as shown in FIG11, this disclosure also provides a communication method applied to a second node, the method including the following steps:

[0174] S201. Send the first configuration information to the first node.

[0175] Here, the first configuration information is used to determine that the frequency domain resources of a carrier include at least one set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

[0176] 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, where 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 OFDM symbols configured as flexible.

[0177] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the carrier is allowed to be configured with SBFD subbands, and the SBFD subbands are configured in all time-domain resources of the carrier. Here, the SBFD subbands include at least one of the following: uplink UL subbands and downlink DL subbands.

[0178] 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 in the frequency domain for uplink and at least one set of resource blocks in the frequency domain for downlink;

[0179] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the carrier's operating mode is neither TDD mode nor FDD mode.

[0180] In some embodiments, the carrier's operating mode meets the following requirements:

[0181] Supports UL and DL transmissions in FDM mode within the carrier.

[0182] In some embodiments, supporting UL and DL transmissions in FDM mode within a carrier includes: the UL available PRB and DL available PRB of each symbol / slot in the time domain of the carrier are both configured to support simultaneous UL and DL transmissions for the same first node in FDM mode.

[0183] In some embodiments, each symbol of the carrier in the time domain is allowed to be configured as an M symbol or an M timeslot. Here, in an M symbol or an M timeslot, UL transmissions and DL transmissions of the same first node are allowed to be configured to be executed simultaneously in FDM mode. An M symbol does not belong to a DL symbol or a UL symbol, and an M timeslot does not belong to a DL timeslot or a UL timeslot.

[0184] 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 at least one UL subband for UL transmission.

[0185] In some embodiments, DL subbands and UL subbands are configured in all time-domain symbols of the carrier.

[0186] In some embodiments, when the carrier is a carrier in a predefined carrier frequency band, the UL BWP of the first node is configured based on the bandwidth of the UL subband, and the DL BWP of the first node is configured based on the bandwidth of the DL subband. Here, 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. The carrier is allowed to be configured in both the UL BWP and DL BWP of each symbol / time slot to support simultaneous UL and DL transmissions for the same first node based on FDM.

[0187] In some embodiments, performing UL and DL transmissions simultaneously on the same first node based on FDM includes:

[0188] Based on the first gap, UL and DL transmissions are performed simultaneously for the same first node within both the UL available PRB and the DL available PRB, or based on the first gap, UL and DL transmissions are performed simultaneously for the same first node within both the UL BWP and the DL BWP. Here, the first gap is the minimum interval between DL and UL transmissions.

[0189] In some embodiments, the level of the first gap is determined based on the size of the first gap.

[0190] In some embodiments, the class of the first gap is determined based on the size of the first gap and the class of common gaps, which are predefined.

[0191] In some embodiments, the class and / or size of the first GAP are determined based on the priority of UL transmission and the priority of DL transmission.

[0192] In some embodiments, the level of the first GAP is associated with the slot type.

[0193] In some embodiments, the first GAP includes a second GAP, which is the frequency domain spacing between the DL subband and the UL subband.

[0194] In some embodiments, frequency domain resources in the first GAP other than the second GAP can be used for data transmission of other first nodes.

[0195] In some embodiments, the second node receives first indication information sent by the first node, the first indication information being used to indicate at least one of the following:

[0196] Multiple first gaps, with different first gaps corresponding to different levels;

[0197] The first node supports the first GAP level;

[0198] The size of the first gap supported by the first node.

[0199] In some embodiments, based on a first GAP, UL transmission and DL transmission are performed simultaneously for the same first node within both the UL-available PRB and the DL-available PRB; or, based on a first GAP, UL transmission and DL transmission are performed simultaneously for the same first node within both the UL BWP and the DL BWP, including:

[0200] If the target first GAP is greater than or equal to the first GAP, based on the first GAP, UL transmission and DL transmission are performed simultaneously for the same first node within the UL available PRB and the DL available PRB. Alternatively, based on the first GAP, UL transmission and DL transmission are performed simultaneously for the same first node within the UL BWP and the DL BWP. Here, the target first GAP is the interval between UL transmission and DL transmission scheduled / configured by the second node for the first node.

[0201] Based on the embodiment shown in Figure 11, 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 consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier to configure the TDD carrier or the carrier in the predefined carrier frequency band as an "FDD" carrier, that is, to have DL subband and UL subband in all symbols, or to have 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 enabling UL transmission and DL transmission to be transmitted in a timely manner.

[0202] The foregoing primarily describes the solution provided in this disclosure from the perspective of the interaction between various nodes. Each node, such as the first node or the second node, includes corresponding hardware structures and / or software modules to perform the aforementioned functions. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments disclosed herein, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0203] This disclosure embodiment can divide the first node or the second node into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. The module division in this disclosure embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0204] Figure 12 is a block diagram of a communication device according to an embodiment of the present disclosure. As shown in Figure 12, the communication device 30 includes a receiving unit 301. In some embodiments, the communication device 30 further includes a processing unit 302 and a transmitting unit 303.

[0205] The communication device 30 can be the first node or a chip within the first node. When the communication device 30 is used to implement the functions of the first node in the above embodiments, each unit is specifically used to implement the following functions.

[0206] The receiving unit 301 is used to 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 set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

[0207] In some embodiments, the processing unit 302 is configured to: in a TDD carrier, determine the intersection resources of the activated UL bandwidth portion BWP and UL subband in the frequency domain as the UL available physical resource block PRB of the first node;

[0208] In TDD carriers, the intersection resources of the activated DL BWP and DL subband in the frequency domain are determined as the DL available PRB of the first node;

[0209] Here, the UL available PRB and DL available PRB in each symbol / slot of the TDD carrier can be configured to support simultaneous UL and DL transmission for the same first node based on frequency division multiplexing (FDM).

[0210] In some embodiments, the processing unit 302 is configured to support UL transmission and DL transmission in FDM mode within a carrier.

[0211] In some embodiments, the processing unit 302 is specifically configured to support simultaneous UL and DL transmissions for the same first node in each symbol / slot of the carrier in the time domain, both in the UL available PRB and DL available PRB.

[0212] In some embodiments, the processing unit 302 is specifically configured to perform UL transmission and DL transmission simultaneously for the same first node within both the UL available PRB and the DL available PRB, based on a first GAP; or, based on a first GAP, to perform UL transmission and DL transmission simultaneously for the same first node within both the UL BWP and the DL BWP. Here, the first GAP is the minimum interval between DL transmission and UL transmission.

[0213] In some embodiments, the sending unit 303 is configured to send first indication information to the second node, the first indication information indicating at least one of the following:

[0214] Multiple first gaps, with different first gaps corresponding to different levels;

[0215] The first node supports the first GAP level;

[0216] The size of the first gap supported by the first node.

[0217] 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, simultaneously perform UL transmission and DL transmission for the same first node within the UL available PRB and the DL available PRB based on the first GAP, or simultaneously perform UL transmission and DL transmission for the same first node within the UL BWP and the DL BWP based on the first GAP. Here, the target first GAP is the interval between the UL transmission and DL transmission scheduled / configured by the second node for the first node.

[0218] In some embodiments, the processing unit 302 is further configured to: not perform UL transmission and DL transmission;

[0219] Perform the target data transmission, which is either a UL transmission or a DL transmission.

[0220] Figure 13 is a block diagram of another communication device provided according to an embodiment of the present disclosure. As shown in Figure 13, the communication device 40 includes a transmitting unit 401. In some embodiments, the communication device 40 further includes a receiving unit 402.

[0221] The communication device 40 can be the second node or a chip within the second node. When the communication device 40 is used to implement the functions of the second node in the above embodiments, each unit is specifically used to implement the following functions.

[0222] The transmitting unit 401 is used to transmit first configuration information to the first node. The first configuration information is used to determine that the frequency domain resources of a carrier include at least one set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

[0223] In some embodiments, the receiving unit 402 is configured to receive first indication information, the first indication information being configured to indicate at least one of the following:

[0224] Multiple first gaps, with different first gaps corresponding to different levels;

[0225] The first node supports the first GAP level;

[0226] The size of the first gap supported by the first node.

[0227] The units in Figure 12 or Figure 13 can also be called modules; for example, the transmitting unit can be called a transmitting module. Additionally, in the embodiments shown in Figure 12 or Figure 13, the names of the units may not be those shown in the figures; for example, the transmitting unit can also be called a communication unit, and the receiving unit can also be called a communication unit.

[0228] If the units in Figure 12 or Figure 13 are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this disclosure, in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure. Storage media for storing computer software products include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0229] When the communication device 30 or communication device 40 implements the functions of the integrated module in hardware, a block diagram of another communication device is provided according to an embodiment of this disclosure. As shown in FIG14, 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.

[0230] Processor 502 may implement or execute various exemplary logic blocks, modules, and circuits described in connection with embodiments of this disclosure. Processor 502 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), 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 connection with embodiments of this disclosure. Processor 502 may also be a combination that implements computational functions, such as a combination of one or more microprocessors, a digital signal processor (DSP), and a microprocessor, etc.

[0231] Communication interface 503 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0232] The memory 501 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0233] In some embodiments, the memory 501 may exist independently of the processor 502. The memory 501 may be connected to the processor 502 via a bus 504 and is used to store instructions or program code. When the processor 502 calls and executes the instructions or program code stored in the memory 501, it can implement the communication method provided in the embodiments of this disclosure.

[0234] In some embodiments, the memory 501 may also be integrated with the processor 502.

[0235] Bus 504 can be an extended industry standard architecture (EISA) bus, etc. Bus 504 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 14, but this does not mean that there is only one bus or one type of bus.

[0236] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the first node or the second node can be divided into different functional modules to complete all or part of the functions described above.

[0237] This disclosure also provides a computer-readable storage medium, including a non-transitory computer-readable storage medium on which computer instructions are stored. All or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware. These computer instructions can be stored in the aforementioned non-transitory computer-readable storage medium. When executed, the computer instructions can include the processes described in the above method embodiments. The aforementioned computer-readable storage medium can also be an external storage device for the aforementioned first node or second node, such as a pluggable hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the aforementioned first node or second node. Further, the aforementioned computer-readable storage medium can also include both internal storage units of the aforementioned first node or second node and external storage devices. The aforementioned computer-readable storage medium is used to store the aforementioned computer program and other programs and data required by the aforementioned first node or second node. The aforementioned computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0238] This disclosure also provides a computer program product comprising a computer program that, when run on a computer, causes the computer to perform any of the communication methods provided in the above embodiments.

[0239] Although this disclosure has been described herein in conjunction with various embodiments, those skilled in the art will understand and implement other variations of the disclosed embodiments by reviewing the accompanying drawings, the disclosure, and the appended claims in carrying out the claimed disclosure. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce a good effect.

[0240] Although this disclosure has been described in conjunction with specific features and embodiments, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of this disclosure. Accordingly, this specification and drawings are merely exemplary illustrations of the disclosure as defined by the appended claims and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this disclosure. It is obvious that those skilled in the art can make various alterations and modifications to this disclosure without departing from its spirit and scope. Thus, this disclosure is also intended to include any such modifications and modifications that fall within the scope of the claims of this disclosure and their equivalents.

[0241] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A communication method, wherein, Applied to the first node, the method includes: The system receives 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 set of resource blocks for uplink UL that are consecutive in the frequency domain and at least one set of resource blocks for downlink DL that are consecutive in the frequency domain. The carrier is a time division duplex (TDD) carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

2. The method according to claim 1, wherein, When the carrier is the TDD carrier, all time-domain resources of the carrier are allowed to be configured to include sub-band full-duplex SBFD sub-bands, the SBFD sub-bands including at least one of the following: UL sub-band, DL sub-band, and all time-domain resources including at least one of the following: orthogonal frequency division multiplexing (OFDM) symbols configured for downlink, OFDM symbols configured for uplink, and flexible OFDM symbols configured.

3. The method according to claim 2, wherein, The method further includes at least one of the following: In the TDD carrier, the intersection of the activated UL bandwidth portion (BWP) and the UL subband in the frequency domain is determined as the UL available physical resource block (PRB) of the first node; 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; In each symbol / slot of the TDD carrier, both the UL available PRB and the DL available PRB can be configured to support simultaneous UL and DL transmissions for the same first node based on Frequency Division Multiplexing (FDM).

4. The method according to any one of claims 1 to 3, wherein, When the carrier is a carrier in the predefined carrier frequency band, the carrier is allowed to be configured with SBFD subbands, and the SBFD subbands are configured in all time-domain resources of the carrier. The SBFD subbands include at least one of the following: uplink UL subbands and downlink DL subbands. 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 in the frequency domain for uplink and at least one set of resource blocks in the frequency domain for downlink; The first node determines whether the first configuration information is valid across all time-domain resources of a carrier based on the frequency band to which the carrier belongs.

5. The method according to any one of claims 1 to 4, wherein, When the carrier is a carrier in the predefined carrier frequency band, the operating mode of the carrier does not belong to TDD mode or Frequency Division Duplex (FDD) mode.

6. The method according to claim 5, wherein, The operating mode of the carrier must meet the following requirements: UL and DL transmissions are supported in FDM mode within the carrier.

7. The method according to claim 6, wherein, Supporting UL and DL transmissions in FDM mode within the carrier includes: The carrier can be configured in each symbol / slot in the time domain to support simultaneous UL and DL transmissions for the same first node based on the FDM method.

8. The method according to any one of claims 5 to 7, wherein, Each symbol of the carrier in the time domain can be configured as an M symbol or an M time slot. Within an M symbol or M time slot, UL transmission and DL transmission of the same first node can be configured to be executed simultaneously in FDM mode. The M symbol does not belong to DL symbols and UL symbols, and the M time slot does not belong to DL time slot and UL time slot.

9. The method according to any one of claims 1 to 8, wherein, When 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 at least one UL subband for UL transmission.

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

11. The method according to claim 9 or 10, wherein, When the carrier is a carrier in the predefined carrier frequency band, the UL BWP of the first node is configured based on the bandwidth of the UL subband, and the DL BWP of the first node is configured based on the bandwidth of the DL subband. 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. The carrier is allowed to be configured in both the UL BWP and the DL BWP of each symbol / time slot to support simultaneous UL and DL transmissions for the same first node based on FDM.

12. The method according to any one of claims 3, 7 or 11, wherein, The method based on FDM, which involves simultaneous UL and DL transmissions at the same first node, includes: Based on the first gap (GAP), the UL transmission and the DL transmission are performed simultaneously for the same first node within both the UL available PRB and the DL available PRB, or, based on the first gap (GAP), the UL transmission and the DL transmission are performed simultaneously for the same first node within both the UL BWP and the DL BWP, where the first gap (GAP) is the minimum interval between the DL transmission and the UL transmission.

13. The method according to claim 12, wherein, The level of the first gap is determined based on the size of the first gap.

14. The method according to claim 13, wherein, The level of the first gap is determined based on the size of the first gap and the common gap level, which is predefined.

15. The method according to claim 13 or 14, wherein, The level and / or 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 any one of claims 12 to 15, wherein, The level of the first GAP is associated with the slot type.

17. The method according to any one of claims 12 to 16, wherein, The first GAP includes a second GAP, which is the frequency domain spacing between the DL subband and the UL subband.

18. The method according to claim 17, wherein, The frequency domain resources in the first GAP, excluding the second GAP, can be used for data transmission of other first nodes.

19. The method according to any one of claims 12 to 18, wherein, The method further includes: Send a first indication message to the second node, the first indication message being used to indicate at least one of the following: Multiple first gaps, with different first gaps corresponding to different levels; The level of the first GAP supported by the first node; The size of the first gap supported by the first node.

20. The method according to any one of claims 12 to 19, wherein, The provision that, based on the first GAP, UL transmission and DL transmission are simultaneously performed for the same first node within both 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 both the UL BWP and the DL BWP, includes: If the target first GAP is greater than or equal to the first GAP, based on the first GAP, UL transmission and DL transmission are performed simultaneously 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 performed simultaneously for the same first node within the UL BWP and the DL BWP, wherein the target first GAP is the interval between UL transmission and DL transmission scheduled / configured by the second node for the first node.

21. The method according to claim 20, wherein, If the target first gap is smaller than the first gap, the method further includes at least one of the following: The UL transfer and the DL transfer are not performed; Perform target data transmission, which is one of the UL transmission and the DL transmission.

22. The method according to claim 21, wherein, The target data transmission is the transmission that starts first between the UL transmission and the DL transmission; or, The target data transmission is the transmission with the most 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, wherein, Applied to the second node, the method includes: Send first configuration information to the first node. The first configuration information is used to determine that the frequency domain resources of a carrier include at least one set of resource blocks for UL that are consecutive in the frequency domain and at least one set of resource blocks for DL ​​that are consecutive in the frequency domain. The carrier is a TDD carrier or a carrier in a predefined carrier frequency band. The set of resource blocks for UL and the set of resource blocks for DL ​​can be configured in all time domain resources of the carrier.

24. A communication device, wherein, include: Memory and processor; Memory and processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instructions, it performs the method as described in any one of claims 1 to 23.

25. A computer-readable storage medium, wherein, The computer-readable storage medium includes a non-transitory computer-readable storage medium on which computer instructions are stored, which, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 23.

26. A computer program product, wherein, The computer program product includes computer instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 23.

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