Method for setting sub-band full duplex resources and user equipment

Abstract

The invention provides a method for setting a sub-band full duplex (SBFD) resource and user equipment (UE). The method comprises: receiving a first configuration from a network device, wherein the first configuration indicates a plurality of transmission directions of a time period; receiving a second configuration from the network device, wherein the second configuration indicates at least one SBFD resource within the time period; and performing a communication operation with the network device according to the first configuration and the second configuration.

Description

Technical Field

[0001] The present invention relates to a communication mechanism, and in particular to a method for setting sub-band full-duplex resources and a user equipment. Background Art

[0002] The "Subband Full Duplex" (SBFD) technology in 5G communication systems (such as New Radio (NR) systems) is an innovative approach to improve spectrum efficiency and communication capacity. SBFD technology divides the communication band into multiple sub-bands and implements full-duplex communication on these sub-bands. The entire communication spectrum is divided into multiple sub-bands, some of which are used for downlink (DL) communication, while other sub-bands are used for uplink (UL) communication.

[0003] However, in order to realize further applications, it is still necessary to define how to configure SBFD resources for communication. Summary of the invention

[0004] Therefore, the present invention is directed to a method for setting SBFD resources and a UE, which can be used to solve the above technical problem.

[0005] An embodiment of the present invention provides a method for setting a subband full duplex (SBFD) resource, which is applied to a user equipment (UE). The method includes: receiving a first configuration from a network device by the UE, wherein the first configuration indicates multiple transmission directions in a time period; receiving a second configuration from the network device by the UE, wherein the second configuration indicates at least one SBFD resource in the time period; and performing a communication operation with the network device by the UE according to the first configuration and the second configuration.

[0006] An embodiment of the present invention provides a user equipment, including a transceiver and a processor. The processor is coupled to the transceiver and configured to: control the transceiver to receive a first configuration from a network device, wherein the first configuration indicates multiple transmission directions in a time period; control the transceiver to receive a second configuration from the network device, wherein the second configuration indicates at least one SBFD resource in the time period; and perform a communication operation with the network device according to the first configuration and the second configuration.

[0007] An embodiment of the present invention provides a method for setting subband full duplex (SBFD) resources, which is applied to a network device. The method includes: the network device transmits a first configuration to a user equipment (UE), wherein the first configuration indicates multiple transmission directions in a time period; the network device transmits a second configuration to the UE, wherein the second configuration indicates at least one SBFD resource in the time period; and the network device performs a communication operation with the UE according to the first configuration and the second configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the present invention and together with the description serve to explain the principles of the present invention.

[0009] Figure 1A A schematic diagram showing the implementation of the SBFD concept;

[0010] Figure 1B Another schematic diagram showing the implementation of the SBFD concept;

[0011] Figure 2A A first schematic diagram illustrating possible interference issues when implementing SBFD techniques;

[0012] Figure 2B A second schematic diagram illustrating possible interference issues when implementing SBFD techniques;

[0013] Figure 2C A third schematic diagram illustrating possible interference issues when implementing SBFD techniques;

[0014] Figure 3 A functional block diagram of a communication device according to an embodiment of the present invention is shown;

[0015] Figure 4 A flowchart of a method for setting SBFD resources according to an embodiment of the present invention is shown;

[0016] Figure 5 A schematic diagram showing a transmission direction indicated by a first configuration according to an embodiment of the present invention;

[0017] Figure 6 A schematic diagram showing configuration of SBFD resources according to an embodiment of the present invention is shown;

[0018] Figure 7 A schematic diagram showing overwriting DL / elastic resources with SBFD resources according to an embodiment of the present invention;

[0019] Figure 8 A schematic diagram showing an application bitmap indication according to an embodiment of the present invention;

[0020] Fig. 9 Show the basis Figure 5 Another schematic diagram of the transmission direction indicated by the first configuration;

[0021] Fig.10 A flowchart of a method for setting SBFD resources according to an embodiment of the present invention is shown;

[0022] Fig.11 A flowchart of a method for setting SBFD resources according to an embodiment of the present invention is shown;

[0023] Fig.12 A schematic diagram showing a SBFD symbol according to an embodiment of the present invention;

[0024] Fig.13A A schematic diagram showing an overwriting elastic symbol according to an embodiment of the present invention;

[0025] Fig. 13B A schematic diagram showing overwriting DL symbols according to an embodiment of the present invention;

[0026] Fig.14 A flowchart of a method for setting SBFD resources according to an embodiment of the present invention is shown;

[0027] Fig.15 A flowchart of a method for setting SBFD resources according to an embodiment of the present invention is shown;

[0028] Fig.16 A schematic diagram showing a method of modifying a transmission direction using DCI according to an embodiment of the present invention is shown;

[0029] Fig.17 Several situations according to an embodiment of the present invention are shown;

[0030] Fig.18 A schematic diagram showing a configuration resource according to an embodiment of the present invention;

[0031] Fig.19A A schematic diagram showing ignoring the second configuration and configuring the symbol according to the first configuration;

[0032] Fig.19B A schematic diagram showing ignoring the second configuration and configuring symbols according to the DCI;

[0033] Fig. 20A A schematic diagram showing that a UL sub-band is changed to a DL sub-band according to an embodiment of the present invention;

[0034] Fig. 20B A schematic diagram showing that a DL sub-band is changed to a UL sub-band according to an embodiment of the present invention;

[0035] Fig.21AA schematic diagram showing ignoring the second configuration and configuring the symbol according to the first configuration;

[0036] Fig.21B A schematic diagram showing ignoring the second configuration and configuring symbols according to the DCI;

[0037] Fig.22A A schematic diagram showing that a DL sub-band is changed to a UL sub-band according to an embodiment of the present invention;

[0038] Fig. 22B A schematic diagram showing that a DL sub-band is changed to a UL sub-band according to an embodiment of the present invention;

[0039] Fig.23A A schematic diagram showing ignoring the second configuration and configuring the symbol according to the first configuration;

[0040] Fig. 23B A schematic diagram showing ignoring the second configuration and configuring symbols according to the DCI;

[0041] Fig.24 A schematic diagram showing configuration of SBFD resources according to an embodiment of the present invention is shown;

[0042] Fig.25 A schematic diagram showing the use of DCI to configure resources for legacy / advanced UEs;

[0043] Fig.26 A schematic diagram showing the use of DCI to configure resources for legacy / advanced UEs;

[0044] Fig. 27 A schematic diagram showing a method of configuring resources using DCI according to an embodiment of the present invention is shown;

[0045] Fig.28 A schematic diagram showing a method of configuring resources using DCI according to an embodiment of the present invention is shown;

[0046] Fig.29A A schematic diagram showing the allocation of resources as SBFD resources using DCI;

[0047] Fig.29B A schematic diagram showing the allocation of resources as SBFD resources using DCI;

[0048] Fig.29C A schematic diagram showing the allocation of resources as SBFD resources using DCI;

[0049] Fig.30 A schematic diagram showing an application control command according to an embodiment of the present invention;

[0050] Fig.31A A schematic diagram showing an application control command according to an embodiment of the present invention;

[0051] Fig.31B A schematic diagram showing an application control command according to an embodiment of the present invention;

[0052] Fig.32 A schematic diagram showing unavailable SBFD resources according to an embodiment of the present invention;

[0053] Fig.33 A schematic diagram showing an application control command according to an embodiment of the present invention;

[0054] Fig.34 A schematic diagram showing a method of processing a missed control command according to an embodiment of the present invention is shown;

[0055] Fig.35 A schematic diagram showing a method of processing a missed control command according to an embodiment of the present invention is shown;

[0056] Fig.36 A schematic diagram showing a method of processing a missed control command according to an embodiment of the present invention is shown;

[0057] Fig.37 A schematic diagram showing a method of processing a missed control command according to an embodiment of the present invention is shown;

[0058] Fig.38 A schematic diagram showing an application control command counter according to an embodiment of the present invention;

[0059] Fig.39 A schematic diagram showing an application control command counter according to an embodiment of the present invention;

[0060] Fig.40 A schematic diagram showing a control command implemented as a bit map according to an embodiment of the present invention;

[0061] Fig.41 A schematic diagram showing a control command implemented as a bit map according to an embodiment of the present invention;

[0062] Fig.42 A schematic diagram showing a control command implemented as a bit map according to an embodiment of the present invention;

[0063] Fig.43 Show the basis Fig.42 Schematic diagram of implementing control commands as bitmaps;

[0064] Fig.44 A flow chart of a method for setting SBFD resources according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0065] The above-mentioned full-duplex can be implemented in a time division duplex (TDD) manner, or more specifically, in a non-overlapping full-duplex sub-band on the gNB side within the traditional TDD band.

[0066] As SBFD technology develops, it is expected that when SBFD is deployed, legacy UEs and SBFD-capable UEs will coexist in the same cell in the foreseeable future. This will bring benefits to SBFD-capable UEs, such as improved uplink coverage and / or improved uplink latency. In addition, it will allow legacy UEs to operate in cells where SBFD is deployed without implementing new Rel-18 features related to SBFD.

[0067] See also Figure 1A , which shows a schematic diagram of implementing the SBFD concept. Figure 1A In step 1, a network device 10 (e.g., a base station such as a gNB) may transmit a first high-level configuration 11 (also referred to as a first configuration) to a traditional UE and an advanced UE, wherein the traditional UE may be a UE that is unable to use SBFD resources to transmit / receive signals, and the advanced UE (also referred to as SBFD-aware UE) may be a UE that is able to use SBFD resources to transmit / receive signals.

[0068] exist Figure 1A In the example, the first high-level configuration 11 may be, for example, a "TDD-UL-DL-ConfigCommon" signaling, which may allocate specific resources (in Figure 1A In this case, the legacy UE may use Symbol#n to perform data reception.

[0069] In addition, Figure 1A In step 2, the network device 11 may further transmit a second higher layer configuration 12 (also referred to as a second configuration), wherein the second higher layer configuration 12 may be processed only by the advanced UE.

[0070] exist Figure 1A In the example, the second high-level configuration 12 may be, for example, "SBFD-ConfigCommon" signaling, which may further configure Symbol#n as a SBFD resource, such as Figure 1A A first DL sub-band, a UL sub-band, and a second DL sub-band are shown.

[0071] exist Figure 1AIn the scenario, it can be understood that the advanced UE is semi-statically assigned as a UL subband in a SBFD symbol, and this SBFD symbol is configured as DL in TDD-UL-DL-ConfigCommon. In this case, the advanced UE may need to follow some principles: (1) In this symbol, UL transmission within the UL subband may be allowed; (2) In this symbol, UL transmission outside the UL subband may not be allowed; (3) The frequency position of the UL subband may be known to the advanced UE, where the frequency position of the UL subband may be explicitly indicated or implicitly derived; (4) The frequency position of the DL subband may be known to the advanced UE, where the frequency position of the DL subband may be explicitly indicated or implicitly derived; (5) In this symbol, DL reception within the DL subband may be allowed; (6) In this symbol, DL reception outside the DL subband may not be allowed.

[0072] See also Figure 1B , which shows another schematic diagram of implementing the SBFD concept. Figure 1B The scene shown is similar to Figure 1A The scenarios shown are almost the same, except that the first higher layer configuration 11 from the network device 11 may configure Symbol#n as flexible (indicated by "F"), which means that legacy UEs may use Symbol#n to perform data transmission or data reception.

[0073] Next, with Figure 1A same, Figure 1B The network device 11 in the embodiment may further transmit a second high-level configuration 12 to further configure Symbol#n as a SBFD resource. For details, refer to Figure 1A Description.

[0074] In some other cases, the network device 11 may also transmit the first higher layer configuration 11 to configure Symbol#n as UL (indicated by “U”), but the present invention is not limited thereto.

[0075] See also Figure 2A , which shows a first schematic diagram of interference problems that may occur when implementing SBFD technology.

[0076] exist Figure 2A In the , there may be traditional operators A and C, and SBFD operator B, where operator A, operator B and operator C may not share information such as TDD configuration, DL transmission (Tx) beam, etc. with each other.

[0077] In this case, interference from operator A to operator B and interference from operator C to operator B may be introduced. These types of interference may be referred to as adjacent channel interference or cross-link interference.

[0078] To handle these interferences, gNBs may share TDD configurations (UL and DL time slot information) with each other. Alternatively, operator B may disable SBFD operation and may fall back to legacy operation, such as half-duplex TDD mode operation.

[0079] See also Figure 2B , which shows a second schematic diagram of interference problems that may occur when implementing SBFD technology.

[0080] exist Figure 2B In the example, gNB#A and gNB#B may belong to the same operator, which allows them to share TDD configuration (UL and DL time slot information) with each other. In addition, gNB#A may correspond to a macro cell, while gNB#B may correspond to a micro cell within the macro cell.

[0081] exist Figure 2B In the scenario, the DL-UL resource allocation of gNB#A and gNB#B on Channel#1 in different time periods (e.g., Slot#(n) and Slot#(n+1)) can be exemplarily configured as shown in the figure.

[0082] Since gNB#A and gNB#B may use the same channel in the same time slot, co-channel interference may be introduced between them.

[0083] See also Figure 2C , which shows a third schematic diagram of interference problems that may occur when implementing SBFD technology.

[0084] exist Figure 2C In the example, gNB#A and gNB#B may belong to the same operator, which allows them to share DL transmit beams with each other. In addition, gNB#A may correspond to a macro cell, while gNB#B may correspond to a micro cell within the macro cell.

[0085] exist Figure 2C In the scenario, UE#1 and UE#2 can use their corresponding transmit beams for transmission. However, since UE#1's transmit beam may not be isolated from gNB#A's transmit beam, gNB#B may switch UE#1's SBFD resources to full DL resources.

[0086] On the other hand, since the transmit beam of UE#2 is isolated from the transmit beam of gNB#A, gNB#B may maintain the SBFD resources of UE#2.

[0087] See also Figure 3 , which shows a functional block diagram of a communication device according to an embodiment of the present invention.

[0088] exist Figure 3In the embodiment, the communication device 300 includes a transceiver 302 and a processor 304. The transceiver 302 can be configured to transmit and receive signals from other devices within its coverage. The transceiver 302 can perform analog to digital signal conversion (ADC), digital to analog signal conversion (DAC), modulation, demodulation, signal amplification, low-pass filtering, and band-pass filtering. For example, the transceiver 302 is configured to provide information about the received signal to the processor 304, modulate the data received from the processor 304 into a modulated signal, and transmit the modulated signal to other devices.

[0089] In some embodiments, the communication device 300 may further include other components, such as an antenna module for implementing the aforementioned functions of the transceiver 302 and the processor 304 .

[0090] The processor 304 can be coupled to the transceiver 302, and the processor 304 can be, for example, a general purpose processor, a special purpose processor, a conventional processor, a digital signal processor (DSP), multiple microprocessors, one or more microprocessors associated with a DSP core, a controller, a microcontroller, application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) circuits, any other type of integrated circuit (IC), a state machine, etc.

[0091] In an embodiment of the present invention, the communication device 300 may be used to implement devices such as a UE (e.g., an advanced UE) and / or a network device (e.g., a gNB and / or other types of base stations).

[0092] In the embodiment of the present invention, the transmission / reception of the UE may be performed by the processor of the UE controlling the transceiver of the UE.

[0093] In the following discussion, unless otherwise specified as a legacy UE, for the sake of brevity, the UE will be assumed to be an advanced UE.

[0094] See also Figure 4 , which shows a flow chart of a method for setting SBFD resources according to an embodiment of the present invention. The method of this embodiment can be executed by the (advanced) UE of the present invention, Figure 4 The details of each step will be described below.

[0095] In step S410, the UE receives a first configuration from a network device, wherein the first configuration indicates multiple transmission directions (eg, DL, UL and / or flexibility) for a time period. In this embodiment, the first configuration may be, for example, Figure 1A The first high-level configuration 11 (for example, signaling of “TDD-UL-DL-ConfigCommon”) may be used, but the present invention is not limited thereto.

[0096] In one embodiment, the first configuration includes a first pattern and a subcarrier spacing, wherein the first pattern indicates a beginning portion, a middle portion, and an end portion of the time period.

[0097] In one embodiment, the beginning part of the time period indicated by the first mode may include at least one DL resource, the middle part of the time period indicated by the first mode may include at least one elastic resource, and the ending part of the time period indicated by the first mode may include at least one UL resource.

[0098] For a better understanding, Figure 5 For example, Figure 5 A schematic diagram showing a transmission direction indicated by a first configuration according to an embodiment of the present invention.

[0099] In this embodiment, the first configuration C1 (eg, “TDD-UL-DL-ConfigCommon”) sent from the network device 51 to the UE 52 may include a first mode C11 and a subcarrier spacing μ ref , where the first pattern C11 can indicate the starting part 531, the middle part 532 and the ending part 533 of the time period S.

[0100] exist Figure 5 In the embodiment, the first mode C11 may be a high-level parameter mode and may include mode parameters such as the time slot configuration period P, the number of time slots having only downlink symbols d slot , the number of downlink symbols d sym , the number of time slots with only uplink symbols u slot , and the number of uplink symbols u sym , subcarrier spacing μ ref and example values ​​of the above parameters are as follows Figure 5 As shown, the present invention is not limited thereto.

[0101] In some embodiments, the time slot configuration period P may be indicated by the "dl-UL-TransmissionPeriodicity" field in the first mode C11; the number of time slots d slot It can be indicated by the "nrofDownlinkSlots" field in the first mode C11; the number of downlink symbols d sym It can be indicated by the "nrofDownlinkSymbols" field in the first mode C11; the number of time slots u slot It can be indicated by the "nrofUplinkSlots" field in the first mode C11; the number of uplink symbols u sym It may be indicated by the "nrofUplinkSymbols" field in the first mode C11, but the present invention is not limited thereto.

[0102] In this embodiment, due to the time slot configuration period P and the subcarrier spacing μ ref Assuming 5 ms and 1 respectively, it can be determined that the time period S includes 10 time slots (e.g. P×2μ ref ),exist Figure 5 It is called Slot#0 to Slot#9.

[0103] Furthermore, since it is assumed that the number of time slots with only downlink symbols is d slot =3, the beginning 531 of the time period S can be determined to include the first three time slots (e.g., Slot#0 to Slot#2) of the time period S, and Slot#0 to Slot#2 will be DL resources / time slots (denoted by "D"). On the other hand, since the number of time slots with only uplink symbols u slot If it is 3, the end part 533 of the time period S can be determined to include the last three time slots of the time period S (for example, Slot#7 to Slot#9), and Slot#7 to Slot#9 will be UL resources / time slots (indicated by "U").

[0104] In the present embodiment, each of Slot#0 to Slot#9 will be configured to include 14 symbols, which will be referred to as Sym#0 to Sym#13 (Sym stands for symbol) of the corresponding time slot.

[0105] exist Figure 5 In the example, since we assume that the number of downlink symbols is d sym =5, the first five symbols of the middle part 532 of the time period S will be determined as DL symbols (e.g., Sym#0 to Sym#4 of Slot#3). On the other hand, since it is assumed that the number of uplink symbols u sym If the value is 6, the last 6 symbols in the middle part 532 of the time period S will be determined as UL symbols (e.g., Sym#8 to Sym#13 of Slot#6). In this case, the other symbols in the middle part 532 of the time period S will be determined as flexible resources / symbols (indicated by "F").

[0106] In one embodiment, the UE may be configured with one or more SBFD resources, wherein the SBFD resources may include at least one time interval, a frequency range, and spatial information, such as quasi co-location (QCL) assumptions, parameters, and the like.

[0107] In this embodiment, the frequency range may include at least two different sub-band types, such as a DL sub-band, a UL sub-band or a flexible sub-band, and each sub-band of the at least two different sub-band types may not overlap in the frequency domain.

[0108] In one embodiment, a sub-band may consist of one resource block (RB) or a group of consecutive RBs for the same transmission direction.

[0109] In one embodiment, the time interval may be in units of symbols, slots, or milliseconds (msec). In one embodiment, if the time interval is equal to one symbol, it may be referred to as an SBFD symbol, where the SBFD symbol may be referred to as an "S" symbol. In another embodiment, if the time interval is equal to one slot, it may be referred to as an SBFD slot, where the SBFD slot may be referred to as an "S" slot.

[0110] From another perspective, in addition to the existing time slot / symbol types (e.g., time slots / symbols indicated by "D", "U" and / or "F"), an embodiment of the present invention introduces a new time slot / symbol type, namely, the time slot / symbol indicated by "S", representing the SBFD time slot / symbol, but the present invention is not limited to this.

[0111] See also Figure 6 , which shows a schematic diagram of configuring SBFD resources according to an embodiment of the present invention.

[0112] exist Figure 6 In the embodiment, the SBFD resource 60 may be a SBFD time slot including 14 SBFD symbols, but the present invention is not limited thereto. In this embodiment, the SBFD resource 60 may include Subband #0 to Subband #2, which may be a DL subband, a UL subband, and a DL subband, respectively, and each of Subband #0 to Subband #2 may consist of 1 RB or a group of continuous RBs for the same transmission direction.

[0113] In this embodiment, the sub-frequency bands included in the SBFD resource 60 may cover a frequency range 61 in the frequency domain, wherein the frequency domain 61 may correspond to one serving cell.

[0114] In this embodiment, the sub-bands included in the SBFD resource 60 indicated by the second configuration C2 in the frequency domain may include at least one DL sub-band (eg, Subband #0 and Subband #2) and at least one UL sub-band (eg, Subband #1).

[0115] In one embodiment, the frequency range 61 may be equal to the sum of the frequency domain length of at least one DL sub-band and the frequency domain length of at least one UL sub-band. Figure 6 The sum of the frequency domain lengths from Subband#0 to Subband#2 in .

[0116] In one embodiment, at least one DL sub-band and at least one UL sub-band do not overlap each other in the frequency domain. Figure 6 Subband#0 to Subband#2 in the MPEG-4 AVC do not overlap with each other in the frequency domain.

[0117] In one embodiment, each of at least one DL sub-band (eg, Subband #0 and Subband #2) includes at least one first RB or a group of consecutive first RBs for DL ​​reception, and at least one UL sub-band (eg, Figure 6 Each of the Subband #1 in the UEFI subband includes at least one second RB or a group of consecutive second RBs for UL transmission.

[0118] Please refer again Figure 4 In step S420, the UE receives a second configuration C2 from the network device, where the second configuration C2 indicates at least one SBFD resource within a time period S.

[0119] In various embodiments, the second configuration C2 may include one or more SBFD settings, wherein the one or more SBFD settings may be applicable to the first mode C11 and / or the second mode C12.

[0120] For example, in an embodiment where the first configuration C1 indicates only the first mode C1 (eg Figure 5 ), the UE may perform the following operations according to the SBFD setting: (1) allocate at least one DL resource (e.g. Figure 5 (2) overwriting one or more DL resources / symbols in the first mode C1 with the first SBFD resource; and (3) overwriting at least one flexible resource (e.g. Figure 5 In one embodiment, the UE is not allowed to use the SBFD setting to overwrite at least one uplink resource (e.g. Figure 5 One or more UL resources / symbols in .

[0121] For a better understanding, we will use Figure 7 As an example, Figure 7 A schematic diagram showing overwriting DL / elastic resources with SBFD resources according to an embodiment of the present invention.

[0122] In one embodiment, the first configuration C1 may indicate a first periodicity of a time period S, and the second configuration C2 may indicate a second periodicity associated with at least one SBFD resource. In one embodiment, the first periodicity is the same as the second periodicity, but the present invention is not limited thereto.

[0123] In another embodiment, the first configuration C1 may indicate a first periodicity of the time period S, but the second configuration C2 may not indicate a second periodicity. In this case, the second periodicity may be defaulted to be the same as the first periodicity. From another perspective, in the case where the first configuration C1 indicates the first periodicity, the second periodicity of at least one SBFD resource configured by the second configuration may be the same as the first periodicity.

[0124] exist Figure 7 In the embodiment, the first configuration C1 (e.g., the signal of "TDD-UL-DL-ConfigCommon") may indicate that the "dl-UL-TransmissionPeriodicity" parameter (e.g., the first periodicity) is P milliseconds (or 5 time slots), and the transmission direction associated with Slot#0 to Slot#4 may be, for example, DDDFU, and the transmission direction associated with Slot#5 to Slot#9 may also be, for example, DDDFU.

[0125] In this embodiment, the second configuration C2 (eg, the signal of “SBFD-ConfigCommon”) may indicate that the “SBFD-Periodicity” parameter (eg, the second periodicity) is P1 milliseconds (or 5 time slots), but the present invention is not limited thereto.

[0126] exist Figure 7 In case 1, the DL resources of Slot#1 and Slot#2 may be overwritten as the first SBFD resource 711 according to the second configuration C2, and the elastic resource of Slot#3 may be overwritten as the first SBFD resource 712 according to the second configuration C2.

[0127] In an embodiment, the first SBFD resource 711 may be continuous in the time domain, and the second SBFD resource 712 may also be continuous in the time domain, but the present invention is not limited thereto.

[0128] exist Figure 7 In case 1, the end time of the first SBFD resource 711 may be aligned with the start time of the second SBFD resource 712.

[0129] In one embodiment, the SBFD setting may include an offset d1, and the start time of the first SBFD resource 711 is later than the start time of the start portion of the time period by the offset d1. Figure 7 In case 1, the start time of the first SBFD resource 711 may be later than the start time of Slot#0 by an offset d1.

[0130] In one embodiment, the start time of the first SBFD resource 711 may be aligned with the start time of the start part of the time period, which can be understood as Figure 7The offset d1 in Case 1 is modified to 0, but the present invention is not limited to this.

[0131] In Case 2, the SBFD setting may include offsets d2 and d3, wherein offset d2 may be used to characterize the time difference between the start time of an SBFD resource and the start time of the start part of the time period, and offset d3 may be used to characterize the time difference between different SBFD resources in the same time period, but the present invention is not limited thereto.

[0132] In one embodiment, the subcarrier spacing μ ref Applicable to the first mode C11 and SBFD setting.

[0133] In one embodiment, the SBFD setting may include information of a time length D1 , where the time length D1 is equal to the sum of a time domain length of the first SBFD resource 711 and a time domain length of the second SBFD resource 712 , but the present invention is not limited thereto.

[0134] In an embodiment of the present invention, higher layer signaling (eg, downlink control information (DCI), medium access control (MAC) control element (CE), etc.) may be provided to the UE, indicating one or more bitmap indications for SBFD resource allocation.

[0135] In one embodiment, the number of bits indicated by the bitmap may be associated with the number of time slots within the time period under consideration.

[0136] In one embodiment, each bit indicated by the bitmap may be used to indicate whether a time interval may be applied to the SBFD operation, wherein the time interval may be in units of symbols, time slots, or milliseconds. For example, when a certain bit indicated by the bitmap is "1", it indicates that the corresponding time interval (e.g., one time slot, one symbol, or the like) is applied to the SBFD operation. On the other hand, when a certain bit indicated by the bitmap is "0", it indicates that the corresponding time interval is not applied to the SBFD operation.

[0137] In one embodiment, the first bit indicated by the bitmap can be used to indicate a first time interval, and the second bit indicated by the bitmap can be used to indicate a second time interval, wherein the length of the first time interval may be the same as the length of the second time interval, and the first time interval may not overlap with the second time interval in the time domain.

[0138] For a better understanding, Figure 8 For example, Figure 8 A schematic diagram showing application of bitmap indication according to an embodiment of the present invention is shown.

[0139] exist Figure 8 In the example, it is assumed that the content of the first configuration C1 considered is the same as Figure 5The first configuration C1 in is the same, so the length of the time period S will be 5 milliseconds (indicated by the time slot configuration period P (e.g., "dl-UL-TransmissionPeriodicity")), and the time period S will include 10 time slots (e.g., Slot#0 to Slot#9).

[0140] In this case, since there are 10 time slots in the time period S, the corresponding bitmap indication 80 may include, for example, 10 bits corresponding to Slot#0 to Slot#9, respectively.

[0141] exist Figure 8 In the example of FIG. 1 , it is assumed that Slot#2, Slot#3, Slot#5, and Slot#6 are used as SBFD resources. In this case, the bits corresponding to Slot#2, Slot#3, Slot#5, and Slot#6 in the bitmap indication 80 may be configured as "1", and the bits corresponding to other time slots in the bitmap indication 80 of the time period S may be configured as "0".

[0142] Therefore, when the UE receives the bitmap indication 80, the UE may determine that only Slot#2, Slot#3, Slot#5, and Slot#6 are used as SBFD resources in the time period S, but the present invention is not limited thereto.

[0143] In another embodiment, the time period S may be divided into a plurality of time intervals, and the first configuration C1 may be used to indicate a corresponding structure of the transmission direction.

[0144] See also Fig. 9 , which shows the basis Figure 5 Another schematic diagram of the transmission direction indicated by the first configuration.

[0145] In this embodiment, the time period S may include a first time interval S1 and a second time interval S2. For example, the end time of the first time interval S1 is aligned with the start time of the second time interval S2, and the time period S is equal to the sum of the first time interval S1 and the second time interval S2.

[0146] In one embodiment, the first configuration C1 may include a first mode C11, a second mode C12, and a subcarrier spacing μ ref The first pattern C11 indicates a start portion 541 , a middle portion 542 , and an end portion 543 of the first time interval S1 .

[0147] In this embodiment, the starting part 541 of the first time interval S1 indicated by the first mode C11 may include at least one first DL resource, the middle part 542 of the first time interval S1 indicated by the first mode C11 may include at least one first elastic resource, and the ending part 543 of the first time interval S1 indicated by the first mode C11 may include at least one first UL resource.

[0148] exist Fig. 9 In the example, the mode parameters indicated by the first mode C11 can be Figure 5 Therefore, the beginning part 541, the middle part 542 and the end part 543 of the first time interval S1 can be the same as Figure 5 The beginning portion 531, the middle portion 532 and the ending portion 533 of the middle time period S are the same, but the present invention is not limited thereto.

[0149] In this embodiment, the second mode C12 indicates a starting portion 551, a middle portion 552, and an ending portion 553 of the second time interval S2. For example, the starting portion 551 of the second time interval S2 indicated by the second mode C12 may include at least one second DL resource, the middle portion 552 of the second time interval S2 indicated by the second mode C12 may include at least one second flexible resource, and the ending portion 553 of the second time interval S2 indicated by the second mode C12 may include at least one second UL resource.

[0150] exist Fig. 9 The second mode C12 may be a high-level parameter mode and may include mode parameters such as the time slot configuration period P2, the number of time slots having only downlink symbols d slot , number of downlink symbols d sym , the number of time slots with only uplink symbols u slot and the number of uplink symbols u sym , and the subcarrier spacing μ ref and example values ​​of the above parameters are as follows Fig. 9 As shown, the present invention is not limited thereto.

[0151] In this embodiment, due to the time slot configuration period P2 and the subcarrier spacing μ ref Assuming that they are 2 ms and 1 respectively, it can be determined that the second time interval S2 includes 4 time slots (for example, P2×2μ ref ),exist Fig. 9 Referred to as Slot#10 to Slot#13.

[0152] In addition, since the number of time slots indicated by the second mode C12 is d slotAssuming that is 2, it can be determined that the beginning 551 of the second time interval S2 includes the first two time slots of the second time interval S2 (e.g., Slot#10 to Slot#11), and Slot#10 to Slot#11 will be DL resources / time slots (denoted by "D"). On the other hand, since the number of time slots u slot If it is 1, it can be determined that the end portion 553 of the second time interval S2 includes the last time slot (for example, Slot#13) of the second time interval S2, and Slot#13 will be a UL resource / time slot (indicated by "U").

[0153] In the present embodiment, each of Slot#10 to Slot#13 will be configured to include 14 symbols, which will be referred to as Sym#0 to Sym#13 of the corresponding slot.

[0154] exist Fig. 9 In the example, due to the number of downlink symbols d sym Assuming that is 4, the first 4 symbols of the middle part 552 of the second time interval S2 will be determined as DL symbols (e.g., Sym#0 to Sym#3 of Slot#12). On the other hand, since the number of uplink symbols u sym Assuming 7, the last 7 symbols of the middle part 552 of the second time interval S2 will be determined as UL symbols (e.g., Sym#7 to Sym#13 of Slot#12). In this case, the other symbols in the middle part 552 of the second time interval S2 will be determined as flexible resources / symbols (represented by "F").

[0155] In this embodiment, the UE 52 may also receive the second configuration C2 from the network device 51 .

[0156] exist Fig. 9 In the scenario where there are multiple time intervals within the time period S, the second configuration C2 may include one or more SBFD settings for the UE 52 to overwrite certain resources as SBFD resources in one or more time intervals.

[0157] In one embodiment, the second configuration C2 may include a SFBD setting applied to the first mode C11 or the second mode C12.

[0158] In this case, the UE 52 may overwrite at least one first downlink resource (e.g., one or more of Slot#0 to Slot#2) indicated by the first mode C11 as the first SBFD resource, and overwrite at least one first elastic resource (e.g., one or more of Slot#3 to Slot#6) indicated by the first mode C11 as the second SBFD resource. Alternatively, the UE may overwrite at least one second downlink resource (e.g., one or more of Slot#10 to Slot#11) indicated by the second mode C12 as the first SBFD resource, and overwrite the second elastic resource (e.g., Slot#12) indicated by the second mode C12 as the second SBFD resource.

[0159] In this case, the first SBFD resource and the second SBFD resource correspond to a reference time interval in the first time interval S1 and the second time interval S2. That is, if the reference time interval considered is the first time interval S1, the SBFD setting can be used to overwrite one or more of Slot#0 to Slot#2 indicated by the first mode C11 as the first SBFD resource, and overwrite Slot#3 to Slot#6 indicated by the first mode C11 as the second SBFD resource. On the other hand, if the reference time interval considered is the second time interval S2, the SBFD setting can be used to overwrite one or more of Slot#10 to Slot#11 indicated by the second mode C12 as the first SBFD resource, and overwrite Slot#12 indicated by the second mode C12 as the second SBFD resource.

[0160] In this embodiment, the SBFD setting is not allowed to overwrite at least one first uplink resource (eg, Slot#7 to Slot#9) indicated by the first mode C11 and at least one second uplink resource (eg, Slot#13) indicated by the second mode C12.

[0161] In this embodiment, the first SBFD resource is continuous in the time domain within the corresponding reference time interval, and the second SBFD resource is also continuous in the time domain within the corresponding reference time interval.

[0162] In this embodiment, the end time of the first SBFD resource and the start time of the second SBFD resource are aligned within the corresponding reference time interval.

[0163] In this embodiment, the first configuration C1 indicates a first periodicity of a time period S, wherein the first periodicity is equal to the sum of a first time interval S1 and a second time interval S2, and the second configuration C2 indicates a second periodicity associated with at least one SBFD resource, and the first periodicity is the same as the second periodicity.

[0164] In this embodiment, the subcarrier spacing μref Applicable to the first mode C11, the second mode C12 and the SBFD setting.

[0165] In this embodiment, the start time of the first SBFD resource is aligned with the start time of the start part of the corresponding reference time interval.

[0166] In this embodiment, the SBFD setting includes an offset, and the start time of the first SBFD resource is later than the start time of the start part of the corresponding reference time interval by the offset.

[0167] In this embodiment, the SBFD setting includes information of a time length, wherein the time length is equal to the sum of a time domain length of the first SBFD resource and a time domain length of the second SBFD resource.

[0168] That is, in the embodiment where the second configuration C2 includes an SBFD setting, the SBFD setting may only be applicable to one time interval in the time period S.

[0169] However, in some embodiments, the second configuration C2 may also include multiple SBFD settings, which are respectively applicable to the first mode C11 or the second mode C12.

[0170] For example, the second configuration C2 includes a first SBFD setting and a second SBFD setting, wherein the first SBFD setting is applicable to the first mode C11 and the second SBFD setting is applicable to the second mode C12.

[0171] In this embodiment, UE 52 can use the first SBFD setting to overwrite at least one first downlink resource indicated by the first mode C11 (for example, one or more of Slot#0 to Slot#2) as a first SBFD resource, and overwrite at least one first elastic resource indicated by the first mode C11 (for example, one or more of Slot#3 to Slot#6) as a second SBFD resource.

[0172] In addition, UE 52 can use the second SBFD setting to overwrite at least one second downlink resource indicated by the second mode C12 (for example, one or more of Slot#10 to Slot#11) as a third SBFD resource, and overwrite at least one second elastic resource indicated by the second mode C12 (for example, Slot#12) as a fourth SBFD resource.

[0173] In this embodiment, the first SBFD setting is not allowed to overwrite at least one first uplink resource (e.g., Slot#7 to Slot#9) indicated by the first mode C11, nor is the second SBFD setting allowed to overwrite at least one second uplink resource (e.g., Slot#13) indicated by the second mode C12.

[0174] In this embodiment, the first SBFD resource and the second SBFD resource are continuous in the time domain within the first time interval, and the third SBFD resource and the fourth SBFD resource are continuous in the time domain within the second time interval. In addition, the end time of the first SBFD resource is aligned with the start time of the second SBFD resource, and the end time of the third SBFD resource is aligned with the start time of the fourth SBFD resource.

[0175] In this embodiment, the first configuration C1 indicates a first periodicity of a time period S, wherein the first periodicity is equal to the sum of a first time interval S1 and a second time interval S2, and the second configuration C2 indicates a second periodicity associated with at least one SBFD resource, and the first periodicity is the same as the second periodicity.

[0176] In this embodiment, the subcarrier spacing μ ref Applicable to the first mode C11, the second mode C12, the first SBFD setting and the second SBFD setting.

[0177] In this embodiment, the start time of the first SBFD resource is aligned with the start time of the start part of the first time interval S1, and the start time of the third SBFD resource is aligned with the start time of the start part of the second time interval S2.

[0178] In this embodiment, the first SBFD setting includes a first offset, and the start time of the first SBFD resource is later than the start time of the start part of the first time interval S1 by the first offset.

[0179] In this embodiment, the second SBFD setting includes a second offset, and the start time of the third SBFD resource is later than the start time of the start part of the second time interval S2 by the second offset.

[0180] In this embodiment, the first SBFD setting includes a first time length, and the first time length is equal to the sum of the time domain length of the first SBFD resource and the time domain length of the second SBFD resource.

[0181] In this embodiment, the second SBFD setting includes a second time length, and the second time length is equal to the sum of the time domain length of the third SBFD resource and the time domain length of the fourth SBFD resource.

[0182] Please refer again Figure 4 In step S430, the UE 52 performs communication operations with the network device 51 according to the first configuration C1 and the second configuration C2.

[0183] For example, since the UE 52 has overwritten one or more resources in the time period S with corresponding SBFD resources according to the second configuration C2, the UE 52 may communicate with the network device 51 using these SBFD resources.

[0184] For a better understanding, we will use Figure 6 and Figure 7 As an example, but the present invention is not limited thereto. Figure 7 In the example, it is assumed that each time slot in the first SBFD resource 711 and the second SBFD resource 712 is configured as Figure 6 SBFD resource 60 in the UE 52, UE 52 can use Subband #0 and Subband #2 of each time slot in Slot #1 to Slot #3 (and Slot #6 to Slot #8) to perform DL reception with network device 51. In addition, UE 52 can use Subband #1 of each time slot in Slot #1 to Slot #3 (and Slot #6 to Slot #8) to perform UL transmission with network device 51, but the present invention is not limited thereto.

[0185] See also Fig.10 , which shows a flow chart of a method for setting SBFD resources according to an embodiment of the present invention. The method of this embodiment can be executed by the network device 51 of the present invention.

[0186] In step S1010, the network device 51 transmits the first configuration C1 to the UE 52. In step S1020, the network device 51 transmits the second configuration C2 to the UE 52. In step S1030, the network device 51 performs a communication operation with the UE 52 according to the first configuration C1 and the second configuration C2. The details related to steps S1010 to S1030 can be referred to the above description, which will not be repeated here.

[0187] See also Fig.11 , which shows a flow chart of a method for setting SBFD resources according to an embodiment of the present invention. The method of this embodiment can be executed by the UE 52 of the present invention. Fig.11 The details of each step will be described below.

[0188] In step S1110, UE 52 receives a first configuration C1 from network device 51. In step S1120, UE 52 receives a second configuration C2 from network device 51. For details related to steps S1110 and S1120, please refer to Figure 4 The description of steps S410 and S420 in the above description will not be repeated here.

[0189] As described above, the first configuration C1 indicates multiple transmission directions within the time period S (eg, Figure 5 time slots marked with "D", "U", or "F" in the .

[0190] In one embodiment, the transmission direction indicated by the first configuration C1 is applied to a frequency range (eg, Figure 6 61), and the at least one SBFD resource indicated in the frequency domain by the second configuration C2 includes at least one DL sub-band (eg, Figure 6 Subband #0 and Subband #2 in the UL subband (eg, Figure 6 Subband#1 in the .

[0191] In this embodiment, since a SBFD time slot may include one or more SBFD symbols (eg, “S” symbols), a new time slot format may be introduced.

[0192] Specifically, a portion of the conventional time slot format table may be shown in Table 1.

[0193]

[0194] Table 1

[0195] With the newly introduced SBFD symbol, the new time slot format table can be shown in Table 2, for example.

[0196]

[0197] Table 2

[0198] In one embodiment, the network device 51 may provide the new time slot format to the UE 52 using, for example, radio resource control (RRC), MAC CE and / or DCI, but the present invention is not limited thereto.

[0199] In one embodiment, the new time slot format in Table 2 may include at least one "S" symbol, wherein the frequency range of the "S" symbol may include multiple sub-bands.

[0200] In one embodiment, the sub-band frequency position of at least one "S" symbol may be the same as the SBFD symbol configured by the higher layer.

[0201] See also Fig.12 , which shows a schematic diagram of a SBFD symbol according to an embodiment of the present invention.

[0202] exist Fig.12 In the embodiment, the SBFD symbol 1200 may include sub-bands 1201 to 1203, wherein the sub-bands 1201 and 1203 may be DL sub-bands, and the sub-band 1202 may be a UL sub-band, but the present invention is not limited thereto.

[0203] In this embodiment, the sub-bands 1201 to 1203 may have a frequency range 1230 corresponding to a serving cell.

[0204] Please refer again Fig.11 In step S1130, UE 52 receives a third configuration C3 from network device 51, wherein the third configuration C3 indicates a DL BWP and a UL BWP. In step S1140, UE 52 performs communication operations with network device 51 according to the first configuration C1, the second configuration C2, and the third configuration C3.

[0205] In one embodiment, the UE 52 may determine a first intersection between the UL BWP and each at least one UL sub-band as at least one UL available resource block. In addition, the UE 52 may determine a second intersection between the DL BWP and each at least one DL sub-band as at least one DL available resource block.

[0206] In this embodiment, the UE 52 is allowed to use at least one UL available resource block to perform UL transmission, and the UE 52 is allowed to use at least one DL available resource block to perform DL reception.

[0207] In this embodiment, the UE 52 is not allowed to use other UL resources except for at least one UL available resource block to perform UL transmission, and the UE 52 is not allowed to use other DL resources except for at least one DL available resource block to perform DL reception.

[0208] In this embodiment, the DL BWP and the UL BWP have the same BWP identifier.

[0209] For example, assuming that the third configuration C3 indicates BWP 1210 as the DL BWP, UE 52 may determine the intersection of BWP 1210 and the DL subbands in subbands 1201 to 1203 as the DL available resource block, which means that subband 1201 will be determined as the DL available resource block. For another example, assuming that the third configuration C3 indicates BWP 1220 as the DL BWP, UE 52 may determine the intersection of BWP 1220 and the DL subbands in subbands 1201 to 1203 as the DL available resource block, which means that subbands 1201 and 1203 will be determined as DL available resource blocks.

[0210] In other embodiments, assuming that the third configuration C3 indicates BWP 1210 as the UL BWP, UE 52 may determine the intersection of BWP 1210 and the UL sub-bands in sub-bands 1201 to 1203 as the UL available resource block, which means that none of the sub-bands 1201 to 1203 will be determined as the UL available resource block. However, if the third configuration C3 indicates BWP 1220 as the UL BWP, UE 52 may determine the intersection of BWP 1220 and the UL sub-bands in sub-bands 1201 to 1203 as the UL available resource block, which means that sub-band 1202 will be determined as the UL available resource block, but the present invention is not limited thereto.

[0211] From another perspective, if the third configuration indicates BWP 1210 as the DL bandwidth and the UL bandwidth, and BWP 1210 is enabled, UE 52 may perform DL reception only on SBFD symbol 1200. On the other hand, if the third configuration indicates BWP 1220 as the DL bandwidth and the UL bandwidth, and BWP 1220 is enabled, UE 52 may perform DL reception or UL transmission on SBFD symbol 1200, but the present invention is not limited thereto.

[0212] In one embodiment, if a higher layer signal (e.g., the first configuration C1, "TDD-UL-DL-ConfigCommon" and / or "TDD-UL-DL-ConfigDedicated") has indicated that a group of symbols of a time slot are flexible symbols, or when a higher layer signal is not provided to UE 52, UE 52 may overwrite the group of symbols based on other signals (e.g., DCI) from network device 51.

[0213] For example, if a specific field (e.g., a slot format indicator (SFI) index field) in the DCI (e.g., DCI format 2_0) indicates that a group of symbols of the time slot are SBFD symbols, the UE 52 may assume that the group of symbols of the time slot are all SBFD symbols. In this case, the UE 52 may perform DL reception on a DL sub-band or perform UL transmission on a UL sub-band on a group of symbols of the time slot.

[0214] Reference Fig.13A , which shows a schematic diagram of overwriting elastic symbols according to an embodiment of the present invention.

[0215] exist Fig.13AIn the example, it is assumed that Symbol#n is configured as a resilient symbol by, for example, the first configuration C1. In this case, if UE 52 determines that the DCI from network device 51 indicates that Symbol#n is a SBFD symbol, UE 52 may overwrite Symbol#n with a SBFD symbol. From another perspective, when it is determined that Symbol#n is also configured as resilient by the first configuration C1, UE 52 may ignore the first configuration C1 and follow the DCI configuration of Symbol#n.

[0216] In another embodiment, if a higher layer signal (e.g., the first configuration C1, “TDD-UL-DL-ConfigCommon” and / or “TDD-UL-DL-ConfigDedicated”) has indicated that a group of symbols in a time slot are DL symbols, the UE 52 may overwrite the group of symbols according to other signals (e.g., DCI) from the network device 51.

[0217] For example, if a specific field (e.g., a slot format indicator (SFI) index field) in the DCI (e.g., DCI format 2_0) indicates that a group of symbols of the time slot are SBFD symbols, the UE 52 may assume that the group of symbols of the time slot are all SBFD symbols. In this case, the UE 52 may perform DL reception on a DL sub-band or perform UL transmission on a UL sub-band on a group of symbols of the time slot.

[0218] Reference Fig. 13B , which shows a schematic diagram of overwriting DL symbols according to an embodiment of the present invention.

[0219] exist Fig. 13B In the example, it is assumed that Symbol#n is configured as a DL symbol by, for example, the first configuration C1. In this case, if UE 52 determines that the DCI from network device 51 indicates that Symbol#n is an SBFD symbol, UE 52 may overwrite Symbol#n with an SBFD symbol. From another perspective, when it is determined that Symbol#n is also configured as DL by the first configuration C1, UE 52 may ignore the first configuration C1 and follow the DCI configuration of Symbol#n.

[0220] In another embodiment, when it is determined that Symbol#n is also configured as UL by the first configuration C1, the UE 52 may ignore the first configuration C1 and follow the DCI configuration Symbol#n, but the present invention is not limited thereto.

[0221] Reference Fig.14 , which shows a flow chart of a method for setting SBFD resources according to an embodiment of the present invention. The method of this embodiment can be executed by the network device 51 of the present invention.

[0222] In step S1410, the network device 51 transmits the first configuration C1 to the UE 52. In step S1420, the network device 51 transmits the second configuration C2 to the UE 52. In step S1430, the network device 51 transmits the third configuration C3 to the UE 52. In step S1440, the network device 51 performs a communication operation with the UE 52 according to the first configuration C1, the second configuration C2, and the third configuration C3. The details related to steps S1410 to S1440 can be referred to the above description, which will not be repeated here.

[0223] Reference Fig.15 , which shows a flow chart of a method for setting SBFD resources according to an embodiment of the present invention. The method of this embodiment can be executed by the UE 52 of the present invention. Fig.15 The details of each step will be described below.

[0224] In step S1510, UE 52 receives a first configuration C1 from network device 51. In step S1520, UE 52 receives a second configuration C2 from network device 51. For details related to steps S1510 and S1520, please refer to Figure 4 The description of steps S410 and S420 will not be repeated here.

[0225] In step S1530, UE 52 receives DCI C4 from network device 51, wherein DCI C4 indicates at least one second transmission direction of at least one time slot in time period S. In step S1540, UE 52 performs communication operation with network device 51 according to first configuration C1, second configuration C2 and DCI C4.

[0226] In one embodiment, the network device 51 may use DCI C4 (eg, DCI format 2_0) to modify the transmission direction of the resources indicated by the first configuration C1.

[0227] Reference Fig.16 , which shows a schematic diagram of using DCI to modify the transmission direction according to an embodiment of the present invention.

[0228] exist Fig.16 In the embodiment, it can be assumed that UE 52 determines that Slot#0 to Slot#4 are respectively D, F, F, F, and U time slots according to the first configuration C1. In this embodiment, UE 52 can further receive DCI C4 (e.g., DCI format 2_0) from network device 51, and determine whether to adjust the transmission direction of one or more time slots from Slot#0 to Slot#4 accordingly.

[0229] For example, UE 52 may determine whether to adjust the transmission direction of one or more time slots from Slot#0 to Slot#4 according to the SFI-index field of DCI C4 and the SFI table, where the SFI table may be as shown in Table 3.

[0230] Slot format combination ID Timeslot format combination 0 (bit 00) 0 1(bit 01) 0,1 2 (bit 10) 0,1,2 3 (bit 11) 0,0,2,1 … …

[0231] Table 3

[0232] In one embodiment, if the SFI-index field of DCI C4 indicates "11" (i.e., SlotFormatCombinationID is 3), UE 52 may determine that SlotFormatCombination is "0,0,2,1". In this case, UE 52 may perform: determining that the first time slot in Slot#0 to Slot#4 is time slot format 0; determining that the second time slot in Slot#0 to Slot#4 is time slot format 0; determining that the third time slot in Slot#0 to Slot#4 is time slot format 2; and determining that the fourth time slot in Slot#0 to Slot#4 is time slot format 1.

[0233] According to Table 3, all symbols in a slot with slot format 0 are DL symbols, all symbols in a slot with slot format 1 are UL symbols, and all symbols in a slot with slot format 2 are flexible symbols. Therefore, Slot#0 to Slot#4 will be determined as D, D, F, U, U slots accordingly.

[0234] In one embodiment, DCI C4 is allowed to overwrite at least one flexible resource indicated by the first pattern C11. In addition, DCI C4 is not allowed to overwrite at least one DL resource and at least one UL resource indicated by the first pattern C11.

[0235] See also Fig.17 , which shows several situations according to an embodiment of the present invention.

[0236] exist Fig.17 In case 1, if RRC indicates a time slot / symbol as "F", DCI C4 can be used to indicate / overwrite this time slot / symbol as "D", "U" or "F". Fig.17 In case 2, if RRC indicates a slot / symbol as "D", it is not allowed to use DCI C4 to indicate / overwrite this slot / symbol as "U" or "F". Fig.17 In case 3, if RRC indicates a time slot / symbol as "U", it is not allowed to use DCI C4 to indicate / overwrite this time slot / symbol as "D" or "F".

[0237] See also Fig.18, which shows a schematic diagram of configuring resources according to an embodiment of the present invention.

[0238] In this embodiment, it is assumed that the time period S indicated by the first configuration C1 includes Slot#0 to Slot#4, and the UE 52 has overwritten Slot#1 to Slot#3 as SBFD resources according to the second configuration C2.

[0239] In addition, the network device 51 may further provide DCI C4 to the UE 52, assuming that the DCI C4 is used to indicate that Slot#0 to Slot#2 are DL time slots. For example, the SFI-index field in DCI C4 may provide three time slot formats for Slot#0 to Slot#2, respectively, but the present invention is not limited thereto.

[0240] In different situations, UE 52 may further configure (or assume / interpret) Slot#0 to Slot#2 indicated by DCI C4 in different ways.

[0241] In one embodiment, when determining that a symbol within a time slot is configured by the second configuration C2 and DCI C4, the UE 52 may ignore DCI C4 and configure (or assume / interpret) the symbol in accordance with the second configuration C2.

[0242] For example, in Fig.18 In case 1, since the symbols in Slot#1 to Slot#2 are configured by both the second configuration C2 and DCI C4, UE 52 can ignore DCI C4 and configure (or assume / interpret) the symbols in Slot#1 to Slot#2 according to the second configuration C2. In this case, UE 52 will maintain the resource allocation from Slot#1 to Slot#2.

[0243] In another embodiment, when determining that a symbol in a time slot is configured by the second configuration C2 and DCI C4, UE 52 determines whether at least one SBFD resource indicated by the second configuration C2 for the symbol is available according to a field included in DCI C4.

[0244] In some embodiments, the field in DCI C4 may be, for example, an available subband indication field, which may be a one-bit field, but the present invention is not limited thereto. In this embodiment, the available subband indication field may be used to inform UE52 whether the UL subband of the 'S' symbol in one or more time slots is available.

[0245] In one embodiment, when it is determined that the field has a first bit value (e.g., "1"), the UE 52 may determine that at least one SBFD resource is available. On the other hand, when it is determined that the field has a second bit value (e.g., "0"), the UE 52 may determine that at least one SBFD resource is unavailable.

[0246] In addition, when determining that the field has the second bit value, the UE 52 may further determine that at least one UL sub-band of at least one SBFD resource has become at least one DL sub-band.

[0247] For example, in Fig.18 Since the symbols in Slot#1 to Slot#2 are configured by both the second configuration C2 and DCI C4, UE 52 can determine whether the SBFD resources indicated by the symbols in Slot#1 and Slot#2 in the second configuration C2 are available based on the available sub-band indication field included in DCI C4.

[0248] In an embodiment where the Available Subband Indication field has a first bit value (eg, "1"), UE 52 may determine that symbols in the SBFD resources of Slot#1 and Slot#2 are available, and thus resource allocation of Slot#1 and Slot#2 may be maintained.

[0249] In an embodiment where the available subband indication field has a second bit value (e.g., "0"), UE 52 may determine that symbols in the SBFD resources of Slot#1 and Slot#2 are unavailable, and thus resource allocation of Slot#1 and Slot#2 cannot be maintained. In addition, UE 52 may determine that the UL subband in the SBFD resources of Slot#1 and Slot#2 becomes a DL subband, which corresponds to Fig.18 Resource allocation for Case 2.

[0250] In one embodiment, when determining that the field has the second bit value, the UE 52 may ignore the at least one SBFD resource indicated by the second configuration C2 and configure (or assume / interpret) the symbol according to the first configuration C1. That is, the UE 52 may determine the transmission direction from Slot#1 to Slot#2 according to the first configuration C1.

[0251] See also Fig.19A , which shows a schematic diagram of ignoring the second configuration and configuring the symbol according to the first configuration.

[0252] exist Fig.19A In step 1, UE 52 may determine that Slot#0 to Slot#4 are D, D, F, F, and U time slots according to the first configuration C1.

[0253] exist Fig.19AIn step 2, UE 52 may overwrite Slot#1 to Slot#3 as SBFD resources according to the second configuration C2, wherein the transmission direction of each sub-band in Slot#1 to Slot#3 may be as follows: Fig.19A exemplified.

[0254] exist Fig.19A In step 3, UE 52 may receive DCI C4 from network device 51, wherein DCI C4 may be assumed to have an SFI-index field, provide a 3-slot format for Slot#0 to Slot#2, and an available sub-band indication field having a second bit value (eg, "0").

[0255] In this embodiment, since the available sub-band indication field has the second bit value, the UE 52 may ignore the SBFD resources indicated by the second configuration C2 and configure (or assume / interpret) these symbols according to the first configuration C1.

[0256] Therefore, the final resource allocation from Slot#1 to Slot#2 will be restored to the D and F time slots indicated by the first configuration C1.

[0257] In another embodiment, when determining that the field has the second bit value, the UE 52 may ignore the at least one SBFD resource indicated by the second configuration C2 and configure (or assume / interpret) the symbol according to DCI C4.

[0258] See also Fig.19B , which shows a schematic diagram of ignoring the second configuration and configuring symbols according to DCI.

[0259] exist Fig.19B In step 1, UE 52 may determine Slot#0 to Slot#4 as D, D, F, F, U time slots according to the first configuration C1.

[0260] exist Fig.19B In step 2, UE 52 may overwrite Slot#1 to Slot#3 as SBFD resources according to the second configuration C2, wherein the transmission direction of each sub-band in Slot#1 to Slot#3 may be as follows: Fig.19B shown.

[0261] exist Fig.19B In step 3, UE 52 may receive DCI C4 from network device 51, wherein DCI C4 may be assumed to have an SFI-index field, provide a 3-slot format for Slot#0 to Slot#2, and an available sub-band indication field has a second bit value (eg, "0").

[0262] In this embodiment, the time slot format of Slot#0 can be specifically configured as "14D", which means that Slot#0 includes 14 DL symbols in sequence. In addition, the time slot format of Slot#1 can be specifically configured as "10D2F2U", which means that Slot#1 includes 10 DL symbols, 2 flexible symbols, and 2 UL symbols in sequence. Similarly, the time slot format of Slot#2 can be specifically configured as "2D10F2U", which means that Slot#2 includes 2 DL symbols, 10 flexible symbols, and 2 UL symbols in sequence.

[0263] In this embodiment, since the available sub-band indication field has the second bit value, the UE 52 may ignore the SBFD resources indicated by the second configuration C2 and configure (or assume / interpret) these symbols according to DCI C4.

[0264] Therefore, the final resource allocation of the symbols in Slot#1 and Slot#2 will be "10D2F2U" and "2D10F2U" respectively as indicated by DCI C4.

[0265] In other embodiments, the available subband indication field in DCI C4 may be a multi-bit field. For example, the available subband indication field may include a first bit corresponding to the UL subband and a second bit corresponding to the DL subband, wherein the first bit and the second bit may each have a first bit value (e.g., "1") or a second bit value (e.g., "0").

[0266] In different embodiments, available sub-band indication fields with different bit combinations may be used to inform the UE whether UL sub-bands and DL sub-bands of “S” symbols in one or more time slots are available.

[0267] See also Fig. 20A , which is a schematic diagram showing a UL sub-band being changed to a DL sub-band according to an embodiment of the present invention.

[0268] exist Fig. 20A In the embodiment, it is assumed that the SFI-index field of DCI C4 provides 3 slot formats for Slot#0 to Slot#2 respectively, and the available sub-band indication field has a bit combination of {0,1}.

[0269] In this case, since the first bit of the available subband indication field is "0" (e.g., the second bit value), UE52 changes the UL subband from Slot#1 to Slot#2 to the DL subband. In addition, since the second bit of the available subband indication field is "1" (e.g., the first bit value), UE52 keeps the DL subband from Slot#1 to Slot#2 as the DL subband.

[0270] See also Fig. 20B, which is a schematic diagram showing a DL sub-band being changed to a UL sub-band according to an embodiment of the present invention.

[0271] exist Fig. 20B In the embodiment, it is assumed that the SFI-index field of DCI C4 provides 3 slot formats for Slot#0 to Slot#2 respectively, and the available sub-band indication field has a bit combination of {1,0}.

[0272] In this case, since the first bit of the available subband indication field is "1" (e.g., the first bit value), UE52 maintains the UL subband in Slot#1 to Slot#2 as the UL subband. In addition, since the second bit of the available subband indication field is "0" (e.g., the second bit value), UE52 changes the DL subband in Slot#1 to Slot#2 to the UL subband.

[0273] In one embodiment, in response to determining that the available sub-band indication field is {0,0}, the UE 52 may ignore the at least one SBFD resource indicated by the second configuration C2 and configure (or assume / interpret) the symbol according to the first configuration C1. In other words, the UE 52 may determine the transmission direction from Slot#1 to Slot#2 based on the first configuration C1.

[0274] See also Fig.21A , which shows a schematic diagram of ignoring the second configuration and configuring the symbol according to the first configuration.

[0275] exist Fig.21A In step 1, UE 52 may determine that Slot#0 to Slot#4 are D, D, F, F, and U time slots based on the first configuration C1.

[0276] exist Fig.21A In step 2, UE 52 may overwrite Slot#1 to Slot#3 as SBFD resources based on the second configuration C2, wherein the transmission direction of each sub-band in Slot#1 to Slot#3 may be as follows: Fig.21A exemplified.

[0277] exist Fig.21A In step 3, UE 52 may receive DCI C4 from network device 51, wherein it may be assumed that DCI C4 has an SFI-index field, provides a 3-slot format for Slot#0 to Slot#2, and an available sub-band indication field has a bit combination of {0,0}.

[0278] In this embodiment, since the available sub-band indication field has a bit combination of {0,0}, the UE 52 may ignore the SBFD resources indicated by the second configuration C2 and configure (or assume / interpret) these symbols according to the first configuration C1.

[0279] Therefore, the final resource allocation from Slot#1 to Slot#2 will be restored to the D and F time slots indicated by the first configuration C1.

[0280] In another embodiment, in response to determining that the available sub-band indication field is {0,0}, the UE 52 may ignore the at least one SBFD resource indicated by the second configuration C2 and configure (or assume / interpret) the symbol in accordance with DCI C4.

[0281] See also Fig. 21B , which shows a schematic diagram of ignoring the second configuration and following the DCI configuration symbols.

[0282] exist Fig. 21B In step 1, UE 52 may determine Slot#0 to Slot#4 as D, D, F, F, U time slots based on the first configuration C1.

[0283] exist Fig. 21B In step 2, UE 52 may overwrite Slot#1 to Slot#3 as SBFD resources based on the second configuration C2, wherein the transmission direction of each sub-band in Slot#1 to Slot#3 may be as follows: Fig. 21B exemplified.

[0284] exist Fig. 21B In step 3, UE 52 may receive DCI C4 from network device 51, wherein DCI C4 may be assumed to have an SFI-index field, provide a 3-slot format for Slot#0 to Slot#2, and an available sub-band indication field having a bit combination of {0,0}.

[0285] In this embodiment, the time slot format of Slot#0 can be specifically configured as "14D", which means that Slot#0 includes 14 DL symbols in sequence. In addition, the time slot format of Slot#1 can be specifically configured as "10D2F2U", which means that Slot#1 includes 10 DL symbols, 2 flexible symbols, and 2 UL symbols in sequence. Similarly, the time slot format of Slot#2 can be specifically configured as "2D10F2U", which means that Slot#2 includes 2 DL symbols, 10 flexible symbols, and 2 UL symbols in sequence.

[0286] In this embodiment, since the available sub-band indication field has a bit combination of {0,0}, the UE 52 may ignore the SBFD resources indicated by the second configuration C2 and configure (or assume / interpret) these symbols according to DCI C4.

[0287] Therefore, the final resource allocation of the symbols in Slot#1 and Slot#2 will be "10D2F2U" and "2D10F2U" respectively as indicated by DCI C4.

[0288] In some embodiments, the available sub-band indication field may have multiple bits, wherein the k-th bit (k is an index) in the available sub-band indication field corresponds to the k-th sub-band (referred to as Subband#k) of the SBFD resource.

[0289] In one embodiment, when the kth bit in the available subband indication field has a first bit value (e.g., "1"), the UE 52 may keep the transmission direction of the corresponding Subband #k unchanged. In another embodiment, when the kth bit in the available subband indication field has a second bit value (e.g., "0"), the UE 52 may change the corresponding Subband #k from DL to UL or from UL to DL.

[0290] See also Fig.22A , which is a schematic diagram showing that a DL sub-band is changed to a UL sub-band according to an embodiment of the present invention.

[0291] exist Fig.22A In the embodiment, it is assumed that the SFI-index field of DCI C4 provides 3 slot formats for Slot#0 to Slot#2 respectively, and the available sub-band indication field has a bit combination of {0, 1, 0}.

[0292] In this case, since the first bit and the third bit of the available subband indication field are "0" (e.g., the second bit value), the UE 52 changes Subband #0 and Subband #2 in Slot #1 to Slot #2 (e.g., the SBFD time slot) from the DL subband to the UL subband. In addition, since the second bit of the available subband indication field is "1" (e.g., the first bit value), the UE 52 maintains Subband #1 in Slot #1 to Slot #2 as the UL subband.

[0293] See also Fig. 22B , which is a schematic diagram showing that a DL sub-band is changed to a UL sub-band according to an embodiment of the present invention.

[0294] exist Fig. 22B In the embodiment, it is assumed that the SFI-index field of DCI C4 provides 3 slot formats for Slot#0 to Slot#2 respectively, and the available sub-band indication field has a bit combination of {0, 1, 1}.

[0295] In this case, since the first bit of the available subband indication field is "0" (e.g., the second bit value), UE52 changes Subband#0 in Slot#1 to Slot#2 (e.g., the SBFD time slot) from the DL subband to the UL subband. In addition, since the second bit and the third bit of the available subband indication field are "1" (e.g., the first bit value), UE52 keeps the transmission direction corresponding to Subband#1 and Subband#2 in Slot#1 to Slot#2 unchanged.

[0296] In one embodiment, in response to determining that the available sub-band indication field is {0,0,0}, the UE 52 may ignore the at least one SBFD resource indicated by the second configuration C2 and configure (or assume / interpret) the symbol according to the first configuration C1. In other words, the UE 52 may determine the transmission direction from Slot#1 to Slot#2 based on the first configuration C1.

[0297] See also Fig.23A , which shows a schematic diagram of ignoring the second configuration and configuring the symbol according to the first configuration.

[0298] exist Fig.23A In step 1, UE 52 may determine that Slot#0 to Slot#4 are D, D, F, F, and U time slots based on the first configuration C1.

[0299] exist Fig.23A In step 2, UE 52 may overwrite Slot#1 to Slot#3 as SBFD resources based on the second configuration C2, wherein the transmission direction of each sub-band in Slot#1 to Slot#3 may be as follows: Fig.23A exemplified.

[0300] exist Fig.23A In step 3, UE 52 may receive DCI C4 from network device 51, wherein DCI C4 may be assumed to have an SFI-index field providing a 3-slot format for Slot#0 to Slot#2, and an available subband indication field having a {0,0,0} bit combination.

[0301] In this embodiment, since the available sub-band indication field has a bit combination of {0, 0, 0}, the UE 52 may ignore the SBFD resources indicated by the second configuration C2 and configure (or assume / interpret) these symbols according to the first configuration C1.

[0302] Therefore, the final resource allocation from Slot#1 to Slot#2 will be restored to the D and F time slots indicated by the first configuration C1.

[0303] In another embodiment, in response to determining that the available sub-band indication field is {0,0,0}, the UE 52 may ignore the at least one SBFD resource indicated by the second configuration C2 and configure (or assume / interpret) the symbol in accordance with DCI C4.

[0304] See also Fig. 23B , which shows a schematic diagram of ignoring the second configuration and following the DCI configuration symbols.

[0305] exist Fig. 23B In step 1, UE 52 may determine Slot#0 to Slot#4 as D, D, F, F, U time slots based on the first configuration C1.

[0306] exist Fig. 23B In step 2, UE 52 may overwrite Slot#1 to Slot#3 as SBFD resources based on the second configuration C2, wherein the transmission direction of each sub-band in Slot#1 to Slot#3 may be as follows: Fig. 23B Shown illustratively.

[0307] exist Fig. 23B In step 3, UE 52 may receive DCI C4 from network device 51, wherein it may be assumed that the SFI-index field of DCI C4 provides a 3-slot format for Slot#0 to Slot#2, and the available sub-band indication field has a bit combination of {0,0,0}.

[0308] In this embodiment, the time slot format of Slot#0 can be specifically configured as "14D", which means that Slot#0 includes 14 DL symbols in sequence. In addition, the time slot format of Slot#1 can be specifically configured as "10D2F2U", which means that Slot#1 includes 10 DL symbols, 2 flexible symbols, and 2 UL symbols in sequence. Similarly, the time slot format of Slot#2 can be specifically configured as "2D10F2U", which means that Slot#2 includes 2 DL symbols, 10 flexible symbols, and 2 UL symbols in sequence.

[0309] In this embodiment, since the available sub-band indication field has a bit combination of {0, 0, 0}, the UE 52 may ignore the SBFD resources indicated by the second configuration C2 and configure (or assume / interpret) these symbols according to DCI C4.

[0310] Therefore, the final resource allocation of the symbols in Slot#1 and Slot#2 will be "10D2F2U" and "2D10F2U" respectively as indicated by DCI C4.

[0311] See also Fig.24 , which shows a schematic diagram of configuring SBFD resources according to an embodiment of the present invention.

[0312] exist Fig.24 In the embodiment, the network device 51 may transmit a first configuration C1 to the legacy UE and the advanced UE so that the UEs configure the transmission direction of the specific resources. In addition, the network device 52 may transmit a second configuration C2 to the advanced UE so that the advanced UE allocates the specific resources as SBFD resources.

[0313] For example, the network device 51 may use the first configuration C1 to control the legacy UE and the advanced UE to configure Symbol#n as the "F" symbol. In addition, the network device 51 may use the second configuration C2 to control the advanced UE to further configure Symbol#n as the "S" symbol, but the present invention is not limited thereto.

[0314] In some embodiments, the network device 51 may further use DCI C4 to configure specific resources for both legacy UEs and advanced UEs.

[0315] See also Fig.25 , which shows a schematic diagram of using DCI to configure resources for legacy / advanced UEs.

[0316] In one embodiment, when it is determined that a symbol in at least one time slot is configured by the second configuration C2 and DCI C4 configures the symbol as DL, the UE may ignore at least one SBFD resource indicated by the second configuration C2 for the symbol and configure the symbol as DL according to DCI C4.

[0317] For example, in Fig.25 In case 1, the network device 51 may transmit DCI C4 to the legacy UE and the advanced UE, wherein DCI C4 may indicate a specific resource (eg Fig.24 Therefore, the legacy UE and the advanced UE allocate specific resources as DL resources. That is, although Symbol#n has been configured as an SBFD symbol based on the second configuration C2, the advanced UE can still configure Symbol#n as a DL symbol according to DCI C4.

[0318] In one embodiment, when it is determined that a symbol in at least one time slot is configured by the second configuration C2 and DCI C4 configures the symbol as UL, the UE may ignore at least one SBFD resource indicated by the second configuration C2 for the symbol and configure the symbol as UL according to DCI C4.

[0319] For example, in Fig.25 In case 2, the network device 51 may transmit DCI C4 to the legacy UE and the advanced UE, wherein DCI C4 may indicate a specific resource (eg Fig.24Therefore, the legacy UE and the advanced UE allocate specific resources as UL resources. That is, although Symbol#n has been configured as a SBFD symbol based on the second configuration C2, the advanced UE can still configure Symbol#n as a UL symbol according to DCI C4.

[0320] See also Fig.26 , which shows a schematic diagram of using DCI to configure resources for legacy / advanced UEs.

[0321] In one embodiment, when it is determined that a symbol in at least one time slot is configured by the second configuration C2 and DCI C4 configures the symbol as resilient, the UE may ignore at least one SBFD resource indicated by the second configuration C2 for the symbol and configure the symbol as resilient in accordance with DCI C4.

[0322] For example, in Fig.26 In case 1, the network device 51 may transmit DCI C4 to the legacy UE and the advanced UE, wherein DCI C4 may indicate a specific resource (eg Fig.24 Therefore, the conventional UE and the advanced UE allocate specific resources as flexible resources. That is, although Symbol#n has been configured as a SBFD symbol based on the second configuration C2, the advanced UE can still configure Symbol#n as a flexible symbol according to DCI C4.

[0323] In another embodiment, when it is determined that a symbol in at least one time slot is configured by the second configuration C2 and DCI C4 configures the symbol as flexible, the UE may ignore DCI C4 and configure the symbol according to the second configuration C2.

[0324] For example, in Fig.26 In case 2, the network device 51 may transmit DCI C4 to the legacy UE and the advanced UE, wherein DCI C4 may indicate a specific resource (eg Fig.24 Therefore, the legacy UE may allocate specific resources as flexible resources. On the other hand, the advanced UE may keep Symbol#n as the SBFD symbol configured by the second configuration C2 and ignore DCI C4.

[0325] exist Fig.26 In case 3 of FIG. 5 , the network device 51 may transmit DCI C4 to the legacy UE and the advanced UE, wherein the DCI C4 may include a specific time slot format (eg, time slot format 255) to indicate a specific resource (eg, Fig.24Therefore, the legacy UE can keep the specific resource as a flexible resource, for example, follow the C1 configuration and ignore DCI C4. On the other hand, the advanced UE can keep Symbol#n as a SBFD symbol, for example, follow the C2 configuration and ignore DCI C4.

[0326] See also Fig. 27 , which shows a schematic diagram of using DCI to configure resources according to an embodiment of the present invention.

[0327] exist Fig. 27 In step 1 , the legacy UE and the advanced UE may determine that Symbol#n is a DL symbol according to the first configuration C1 from the network device 51 .

[0328] exist Fig. 27 In step 2 , the advanced UE may determine that Symbol#n is a SBFD symbol according to the second configuration C2 from the network device 51 .

[0329] In case 1 of step 3, the network device 51 may use DCI C4 to indicate that Symbol#n is a DL symbol. Therefore, the legacy UE and the advanced UE may configure Symbol#n as a DL symbol.

[0330] In case 2 of step 3, the network device 51 may transmit DCI C4 to the legacy UE and the advanced UE, wherein DCI C4 may include a specific slot format (e.g., slot format 255) of Symbol#n. Therefore, the legacy UE may keep Symbol#n as a DL symbol. On the other hand, the advanced UE may keep Symbol#n as a SBFD symbol configured by the second configuration C2.

[0331] See also Fig.28 , which shows a schematic diagram of using DCI to configure resources according to an embodiment of the present invention.

[0332] exist Fig.28 In step 1 , the legacy UE and the advanced UE may determine that Symbol#n is a UL symbol according to the first configuration C1 from the network device 51 .

[0333] exist Fig.28 In step 2 , the advanced UE may determine that Symbol#n is a SBFD symbol according to the second configuration C2 from the network device 51 .

[0334] In case 1 of step 3, the network device 51 may use DCI C4 to indicate that Symbol#n is a UL symbol. Therefore, the legacy UE and the advanced UE may configure Symbol#n as a UL symbol.

[0335] In case 2 of step 3, the network device 51 may transmit DCI C4 to the legacy UE and the advanced UE, wherein DCI C4 may include a specific slot format (e.g., slot format 255) of Symbol#n. Therefore, the legacy UE may keep Symbol#n as a UL symbol. On the other hand, the advanced UE may keep Symbol#n as a SBFD symbol configured by the second configuration C2.

[0336] In some embodiments, the network device 51 may directly use DCI C4 to allocate specific resources as SBFD resources without providing the second configuration C2.

[0337] See also Fig.29A , which is a schematic diagram showing how resources are allocated as SBFD resources using DCI.

[0338] exist Fig.29A In step 1 , the advanced UE may determine that Symbol#n is a DL symbol according to the first configuration C1 from the network device 51 .

[0339] exist Fig.29A In step 2, the network device 51 may use DCI C4 to indicate that Symbol#n is a flexible symbol. In this case, the advanced UE may assume that Symbol#n is a SBFD symbol.

[0340] See also Fig.29B , which is a schematic diagram showing how resources are allocated as SBFD resources using DCI.

[0341] exist Fig.29B In step 1 , the advanced UE may determine that Symbol#n is a UL symbol according to the first configuration C1 from the network device 51 .

[0342] exist Fig.29B In step 2, the network device 51 may use DCI C4 to indicate that Symbol#n is a flexible symbol. In this case, the advanced UE may assume that Symbol#n is a SBFD symbol.

[0343] See also Fig.29C , which is a schematic diagram showing how resources are allocated as SBFD resources using DCI.

[0344] exist Fig.29C In step 1 , the advanced UE may determine that Symbol#n is a flexible symbol according to the first configuration C1 from the network device 51 .

[0345] exist Fig.29C In step 2, the network device 51 may use DCI C4 to indicate that Symbol#n is a flexible symbol. In this case, the advanced UE may assume that Symbol#n is a SBFD symbol.

[0346] In an embodiment, the UE 52 may receive a time slot format table from the network device 51, wherein the time slot format table may be a new time slot format table of Table 2, including at least one DL symbol, a UL symbol, a flexible symbol, and a SBFD symbol.

[0347] In one embodiment, when it is determined that a symbol in at least one time slot is configured as a SBFD symbol by DCI C4, UE 52 may determine that the frequency domain configuration of the symbol is the same as the second configuration C2.

[0348] In some embodiments, UE 52 may receive a control command from network device 51 , wherein the control command may indicate whether SBFD resources are available.

[0349] In one embodiment, if the UE 52 determines that the control command indicates an enabled state, the UE 52 may determine that the SBFD resources are available. On the other hand, if the UE 52 determines that the control command indicates a disabled state, the UE 52 may determine that the SBFD resources are not available.

[0350] In some embodiments, the control command may be indicated by DCI, MAC CE or other higher layer configuration.

[0351] In some embodiments, the control command may be cell-specific, BWP-specific, or UE-specific.

[0352] In some embodiments, the control command may be provided periodically by the network device 51 .

[0353] Reference Fig.30 , which shows a schematic diagram of applying a control command according to an embodiment of the present invention.

[0354] In this embodiment, the network device 51 may periodically transmit control commands to the UE 52, wherein the time difference between two consecutive control commands (eg, control commands 3001 and 3002) may be, for example, a time slot configuration period P (eg, "dl-UL-TransmissionPeriodicity").

[0355] exist Fig.30 In the example, the control command 3001 may be set by the network device 51 to indicate the activation state. In this case, the UE 52 may accordingly determine that the SBFD resources in the time period 3010 corresponding to the control command 3001 are available.

[0356] In addition, the control command 3002 may be set by the network device 51 to indicate a deactivated state. In this case, the UE 52 may accordingly determine that the SBFD resources in the time period 3020 corresponding to the control command 3002 are unavailable.

[0357] Reference Fig.31A , which shows a schematic diagram of applying a control command according to an embodiment of the present invention.

[0358] In this embodiment, the network device 51 may provide the UE 52 with a control command 3101 indicating an enabled state, and the UE 52 may accordingly determine that SBFD resources in subsequent time periods (eg, time periods 3110 and 3120) are available until receiving a control command 3102 indicating a disabled state.

[0359] In this case, the UE 52 may accordingly determine that the SBFD resources in the time period 3130 corresponding to the control command 3102 are unavailable.

[0360] Reference Fig.31B , which shows a schematic diagram of applying a control command according to an embodiment of the present invention.

[0361] In this embodiment, the network device 51 may provide a control command 3101a indicating a deactivated state to the UE 52, and the UE 52 may accordingly determine that SBFD resources in subsequent time periods (eg, time periods 3110a and 3120a) are unavailable until receiving a control command 3102a indicating an activated state.

[0362] In this case, the UE 52 may accordingly determine that the SBFD resources in the time period 3130a corresponding to the control command 3102a are available.

[0363] Reference Fig.32 , which is a schematic diagram showing unavailable SBFD resources according to an embodiment of the present invention.

[0364] exist Fig.32 In the embodiment, it is assumed that UE 52 receives a control command 3201 indicating a deactivated state, and thus UE 52 may accordingly determine that the SBFD resources in a time period 3210 corresponding to the control command 3201 are unavailable.

[0365] In this case, the UE 52 may determine the transmission direction of the unavailable SBFD resources according to the first configuration C1. For example, if the first configuration C1 indicates that the time slots corresponding to the SBFD resources are DL time slots, the UE 52 may determine that these time slots are DL time slots, such as Fig.32 , but the present invention is not limited thereto.

[0366] Reference Fig.33 , which shows a schematic diagram of applying a control command according to an embodiment of the present invention.

[0367] In this embodiment, if UE 52 receives control command 3301 indicating an activation state at time point t, UE 52 may determine that SBFD resources after time point t+T are available, where T is an application time associated with the SBFD resources.

[0368] Therefore, in Fig.33 In the scenario of , although Slot#1 to Slot#3 are configured as SBFD resources, UE 52 may only determine Slot#2 and Slot#3 as available because Slot#2 starts after time point t+T. That is, Slot#1 is determined to be unavailable because Slot#1 starts before time point t+T, but the present invention is not limited thereto.

[0369] In another embodiment, if UE 52 receives a control command 3301 indicating a deactivated state at time point t, UE 52 may determine that the SBFD resources after time point t+T are unavailable. Fig.33 In the scenario of , although Slot#1 to Slot#3 are configured as SBFD resources, UE 52 may only determine Slot#1 as available because Slot#1 starts before time point t+T. That is, Slot#2 and Slot#3 are determined to be unavailable because Slot#2 starts after time point t+T, but the present invention is not limited thereto.

[0370] In some embodiments, UE 52 may miss receiving control commands. To solve this problem, UE 52 may use SBFD resources in different ways.

[0371] Reference Fig.34 , which is a schematic diagram showing a method of processing a missed control command according to an embodiment of the present invention.

[0372] exist Fig.34 In step 1, UE 52 may determine that Slot#0 to Slot#4 are D, F, F, F, and U time slots according to the first configuration C1 from network device 51.

[0373] exist Fig.34 In step 2, UE 52 may overwrite Slot#1 to Slot#3 as SBFD resources according to the second configuration C2, wherein the transmission direction of each sub-band in Slot#1 to Slot#3 may be as follows: Fig.34 exemplified.

[0374] exist Fig.34 In step 3, it is assumed that UE 52 misses receiving control command 3401 from network device 51, and thus UE 52 does not know whether the SBFD resources in Slot#1 to Slot#3 are available.

[0375] In this embodiment, since UE 52 misses the control command 3401 and the first configuration C1 configures Slot# 1 as flexible, UE 52 may not perform UL transmission configured by a higher layer within the UL sub-band 3410 .

[0376] In this embodiment, since UE 52 misses control command 3401 and the first configuration C1 configures Slot# 3 as flexible, UE 52 may not perform DL reception configured by a higher layer in DL sub-band 3420 .

[0377] Reference Fig.35 , which is a schematic diagram showing a method of processing a missed control command according to an embodiment of the present invention.

[0378] exist Fig.35 In step 1, UE 52 may determine that Slot#0 to Slot#4 are D, D, D, D, and U time slots according to the first configuration C1 from network device 51.

[0379] exist Fig.35 In step 2, UE 52 may overwrite Slot#1 to Slot#3 as SBFD resources according to the second configuration C2, wherein the transmission direction of each sub-band in Slot#1 to Slot#3 may be as follows: Fig.35 exemplified.

[0380] exist Fig.35 In step 3, it is assumed that UE 52 misses receiving control command 3501 from network device 51, and thus UE 52 does not know whether the SBFD resources in Slot#1 to Slot#3 are available.

[0381] In this embodiment, since UE 52 misses the control command 3501 and the first configuration C1 configures Slot# 1 as DL, UE 52 may not perform UL transmission configured by a higher layer in the UL sub-band 3510 .

[0382] In this embodiment, since UE 52 misses control command 3501 and the first configuration C1 configures Slot# 3 as DL, UE 52 may not perform DL reception configured by a higher layer in UL sub-band 3520 .

[0383] Reference Fig.36 , which is a schematic diagram showing a method of processing a missed control command according to an embodiment of the present invention.

[0384] exist Fig.36 In the example, the resource allocation of Slot#0 to Slot#4 may be different from Fig.35 The resource allocation from Slot#0 to Slot#4 after step 2 is the same, but the present invention is not limited to this.

[0385] In this embodiment, it is assumed that UE 52 misses receiving control command 3601, but UE 52 is scheduled to perform DL reception in sub-band 3610, and sub-band 3610 is configured as a UL sub-band by the second configuration C2.

[0386] Therefore, UE 52 may infer that control command 3601 indicates a disabled state, and thus UE 52 may determine that the SBFD resources in subsequent Slot#2 and Slot#3 are unavailable, but the present invention is not limited thereto.

[0387] Reference Fig.37 , which is a schematic diagram showing a method of processing a missed control command according to an embodiment of the present invention.

[0388] exist Fig.37 In the example, the resource allocation of Slot#0 to Slot#4 may be different from Fig.35 The resource allocation from Slot#0 to Slot#4 after step 2 is the same, but the present invention is not limited to this.

[0389] In this embodiment, it is assumed that UE 52 misses receiving control command 3701, but UE 52 is scheduled to perform UL transmission in sub-band 3710, and sub-band 3710 is configured as a UL sub-band by the second configuration C2.

[0390] Therefore, UE 52 may infer that control command 3701 indicates an enabled state, and thus UE 52 may determine that the SBFD resources in subsequent Slot#2 and Slot#3 are available, but the present invention is not limited thereto.

[0391] In one embodiment, the control command indicating the disabled state may be designed with a counter, wherein the counter may be initialized to a certain value (referred to as an integer K) and decremented by one when a time period passes. In this case, if the corresponding counter value is non-zero, the UE 52 may assume that the SBFD resource is unavailable.

[0392] In one embodiment, when the counter value decreases to zero, UE 52 may assume that SBFD resources are available.

[0393] Reference Fig.38 , which shows a schematic diagram of a counter for applying a control command according to an embodiment of the present invention.

[0394] exist Fig.38 In the example, it is assumed that UE 52 receives a control command 3801 indicating a disabled state and accordingly initializes a corresponding counter to 2 (eg, K).

[0395] In time period 3810, since the counter corresponding to control command 3801 is 2, UE 52 may assume that SBFD resources in time period 3810 are unavailable.

[0396] In time period 3820, since the counter corresponding to control command 3801 is 1 (ie, the counter has been decremented by one because time period 3810 has elapsed), UE 52 may assume that SBFD resources in time period 3820 are not available.

[0397] In time period 3830, since the counter corresponding to control command 3801 is 0 (ie, the counter has been decremented by one because time period 3820 has elapsed), UE 52 may assume that the SBFD resources in time period 3830 become available.

[0398] In some embodiments, the specific value used to initialize the counter may be determined by the network device 51 based on the communication quality between the network device 51 and the UE 52. For example, if the communication quality measured by the network device 51 is very poor, the specific value used to initialize the counter may be determined to be a larger value so that the UE 52 avoids using the SBFD resources for a longer period of time. On the contrary, if the communication quality measured by the network device 51 is good, the specific value used to initialize the counter may be determined to be a smaller value so that the UE 52 avoids using the SBFD resources for a shorter period of time.

[0399] In some embodiments, the specific value used to initialize the counter may be indicated by, for example, a DCI, a MAC CE, and / or other higher layer configuration.

[0400] In one embodiment, Fig.38 The network device 51 in the scene may stop providing control commands during the time periods 3820 and 3830, but the present invention is not limited thereto.

[0401] In some embodiments, when the communication quality is determined to be good, the network device 51 may directly reduce the counter of the control command to zero.

[0402] See also Fig.39 , which shows a schematic diagram of applying a control command counter according to an embodiment of the present invention.

[0403] exist Fig.39 In the example, it is assumed that UE 52 receives a control command 3901 indicating a disabled state and accordingly initializes the corresponding counter to 4 (eg, K).

[0404] In time period 3910, since the counter corresponding to control command 3901 is 2, UE 52 may assume that SBFD resources in time period 3910 are unavailable.

[0405] In time period 3920, since the counter corresponding to control command 3901 is 3 (ie, the counter has been decremented by one because time period 3910 has elapsed), UE 52 may assume that SBFD resources in time period 3920 are not available.

[0406] In the time period 3930, assuming that the network device 51 detects that the communication quality has improved, the network device 51 can directly set the counter corresponding to the control command 3901 to zero. In this case, since the counter corresponding to the control command 3901 is 0, the UE 52 can assume that the SBFD resources in the time period 3930 become available.

[0407] In some embodiments, the control command may be implemented as a bitmap including M bits (M is an integer), wherein the mth (m is an index) bit of the M bits corresponds to the mth SBFD resource in a time period.

[0408] In one embodiment, if the mth bit has a first bit value (e.g., "1"), the UE 52 may determine that the mth SBFD resource of the corresponding time period is available. On the other hand, if the mth bit has a second bit value (e.g., "0"), the UE 52 may determine that the mth SBFD resource of the corresponding time period is unavailable.

[0409] See also Fig.40 , which shows a schematic diagram of implementing a control command as a bit map according to an embodiment of the present invention.

[0410] exist Fig.40 In the example, it is assumed that UE 52 receives control command 4001, which is a bitmap having a bit combination {0, 1, 1}. In this case, UE 52 may determine that the first SBFD resource in the corresponding time period (e.g., time periods 4010 and 4020) is unavailable, and determine that the second and third SBFD resources in the corresponding time period (e.g., time periods 4010 and 4020) are available.

[0411] Furthermore, assume that UE 52 receives control command 4002, which is a bitmap having a bit combination {1, 1, 1} In this case, UE 52 may determine that the first, second, and third SBFD resources in the corresponding time period (eg, time period 4030) are available.

[0412] See also Fig.41 , which shows a schematic diagram of implementing a control command as a bit map according to an embodiment of the present invention.

[0413] exist Fig.41In the example, it is assumed that UE 52 receives control command 4101, which is a bitmap having a bit combination {0, 1, 1}. In this case, UE 52 may determine that the first SBFD resource in the corresponding time period (e.g., the SBFD resources in Slot#1 and Slot#6) is unavailable, and determine that the second and third SBFD resources in the corresponding time period (e.g., the SBFD resources in Slot#2, Slot#3, Slot#7, and Slot#8) are available.

[0414] In this embodiment, the SBFD resources determined to be unavailable may be used by the UE 52 based on, for example, the first configuration C1.

[0415] For example, if the first configuration C1 configures Slot#1 as a DL timeslot, the UE 52 may assume that Slot#1 is a DL timeslot. In addition, if the first configuration C1 configures Slot#6 as a flexible timeslot, the UE 52 may assume that Slot#6 is a flexible timeslot.

[0416] In some embodiments, the control command may be implemented as a bitmap including P bits (P is an integer), wherein the pth bit (p is an index) of the P bits corresponds to the pth SBFD symbol of the corresponding SBFD time slot in a time period.

[0417] In one embodiment, if the p-th bit has a first bit value (e.g., "1"), the UE 52 may determine that the p-th SBFD symbol of the corresponding SBFD time slot of the corresponding time period is available. On the other hand, if the p-th bit has a second bit value (e.g., "0"), the UE 52 may determine that the p-th SBFD symbol of the corresponding SBFD time slot of the corresponding time period is not available.

[0418] See also Fig.42 , which shows a schematic diagram of implementing a control command as a bit map according to an embodiment of the present invention.

[0419] exist Fig.42 In the example, it is assumed that UE 52 receives a control command 4201, which is a bitmap having 14 bits (eg, P is 14), respectively corresponding to 14 SBFD symbols in Slot#n (eg, one SBFD time slot).

[0420] See also Fig.43 , which shows the basis Fig.42 A schematic diagram showing the implementation of control commands as a bitmap.

[0421] exist Fig.43, assume that UE 52 receives control command 4301, which is a bit map having a bit combination {0,0,0,0,0,0,0,1,1,1,1,1,1,1,1}. In this case, UE 52 can determine that the first to seventh symbols (e.g., Symbol #0 to Symbol #6) in Slot #n are unavailable, and determine that the eighth to fourteenth symbols (e.g., Symbol #7 to Symbol #13) in Slot #n are available.

[0422] In this embodiment, the SBFD symbols determined to be unusable may be used by the UE 52 based on, for example, the first configuration C1.

[0423] For example, if the first configuration C1 configures the first to seventh symbols in Slot#n as DL symbols, the UE 52 may assume that the first to seventh symbols in Slot#n are DL symbols.

[0424] See also Fig.44 , which shows a flow chart of a method for setting SBFD resources according to an embodiment of the present invention. The method of this embodiment can be executed by the network device 51 of the present invention.

[0425] In step S4410, the network device 51 transmits the first configuration C1 to the UE 52. In step S4420, the network device 51 transmits the second configuration C2 to the UE 52. In step S4430, the network device 51 transmits the DCI C4 to the UE 52. In step S4440, the network device 51 performs a communication operation with the UE 52 according to the first configuration C1, the second configuration C2, and the DCI C4. The details related to steps S4410 to S4440 can be referred to the above description, which will not be repeated here.

[0426] In summary, the embodiments of the present invention provide a solution for a UE and a network device to communicate with each other using SBFD resources configured by a higher layer and / or DCI.

[0427] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for setting sub-band full-duplex SBFD resources, applied to user equipment UE, characterized in that: include: Receiving, by the UE, a first configuration from a network device, wherein the first configuration indicates a plurality of transmission directions of a time period; receiving, by the UE, a second configuration from the network device, wherein the second configuration indicates at least one SBFD resource within the time period; as well as The UE performs a communication operation with the network device according to the first configuration and the second configuration.

2. The method of claim 1, wherein the first configuration comprises a first pattern and a subcarrier spacing, the first pattern indicating a beginning portion, a middle portion, and an end portion of the time period; wherein the beginning portion of the time period indicated by the first mode includes at least one downlink resource, the middle portion of the time period indicated by the first mode includes at least one flexible resource, and the ending portion of the time period indicated by the first mode includes at least one uplink resource; The second configuration includes a SBFD setting, wherein the SBFD setting is used to perform at least one of the following operations: Overwriting the at least one downlink resource indicated by the first mode as a first SBFD resource; and The at least one elastic resource indicated by the first mode is overwritten as a second SBFD resource. 3 . The method according to claim 2 , wherein the SBFD setting is not allowed to be used to overwrite the at least one uplink resource indicated by the first mode. The method according to claim 2 , wherein the first SBFD resource is continuous in a time domain, and the second SBFD resource is continuous in the time domain. The method according to claim 4 , wherein an end time of the first SBFD resource is aligned with a start time of the second SBFD resource. 6 . The method according to claim 1 , wherein the first configuration indicates a first periodicity of the time period, and a second periodicity of the at least one SBFD resource configured by the second configuration is the same as the first periodicity.

7. The method of claim 2, wherein the subcarrier spacing applies to the first mode and the SBFD setting.

8. The method of claim 2, wherein the SBFD setting includes an offset, and a start time of the first SBFD resource is later than a start time of the start part of the time period by the time of the offset, or a start time of the first SBFD resource is aligned with a start time of the start part of the time period, wherein the offset is greater than or equal to 0. 9 . The method according to claim 2 , wherein the SBFD setting includes information of a time length, and the time length is equal to the sum of a time domain length of the first SBFD resource and a time domain length of the second SBFD resource.

10. The method according to claim 1, wherein the first configuration comprises a first mode, a second mode, and a subcarrier spacing, the first mode indicating a start portion, a middle portion, and an end portion of a first time interval, and the second mode indicating a start portion, a middle portion, and an end portion of a second time interval; The starting part of the first time interval indicated by the first mode includes at least one first downlink resource, the middle part of the first time interval indicated by the first mode includes at least one first flexible resource, and the ending part of the first time interval indicated by the first mode includes at least one first uplink resource; The starting part of the second time interval indicated by the second mode includes at least one second downlink resource, the middle part of the second time interval indicated by the second mode includes at least one second flexible resource, and the ending part of the second time interval indicated by the second mode includes at least one second uplink resource; wherein the end time of the first time interval is aligned with the start time of the second time interval, and the time period is equal to the sum of the first time interval and the second time interval; The second configuration includes a SBFD setting, and the SBFD setting is applied to the first mode or the second mode, wherein the SBFD setting is used to perform: Overwrite the at least one first downlink resource indicated by the first mode with a first SBFD resource, and overwrite the at least one first flexible resource indicated by the first mode with a second SBFD resource; or Overwriting the at least one second downlink resource indicated by the second mode with the first SBFD resource, and overwriting the at least one second flexible resource indicated by the second mode with the second SBFD resource; The first SBFD resource and the second SBFD resource correspond to a reference time interval in the first time interval and the second time interval. 11 . The method according to claim 10 , wherein the SBFD setting is not allowed to overwrite the at least one first uplink resource indicated by the first mode and the at least one second uplink resource indicated by the second mode.

12. The method according to claim 10, wherein the first SBFD resource is continuous in the time domain within the corresponding reference time interval, and the second SBFD resource is continuous in the time domain within the corresponding reference time interval; The end time of the first SBFD resource and the start time of the second SBFD resource are aligned within the corresponding reference time interval.

13. The method according to claim 10, wherein the first configuration indicates a first periodicity of the time period, wherein the first periodicity is equal to the sum of the first time interval and the second time interval, and the second periodicity of the at least one SBFD resource configured by the second configuration is the same as the first periodicity; The subcarrier spacing is applied to the first mode, the second mode and the SBFD setting.

14. The method according to claim 10, wherein the SBFD setting includes information of a time length; The time length is equal to the sum of the time domain length of the first SBFD resource and the time domain length of the second SBFD resource.

15. The method of claim 1, wherein the first configuration comprises a first mode, a second mode, and a subcarrier spacing, the first mode indicating a start portion, a middle portion, and an end portion of a first time interval, and the second mode indicating a start portion, a middle portion, and an end portion of a second time interval; The starting part of the first time interval indicated by the first mode includes at least one first downlink resource, the middle part of the first time interval indicated by the first mode includes at least one first flexible resource, and the ending part of the first time interval indicated by the first mode includes at least one first uplink resource; The starting part of the second time interval indicated by the second mode includes at least one second downlink resource, the middle part of the second time interval indicated by the second mode includes at least one second flexible resource, and the ending part of the second time interval indicated by the second mode includes at least one second uplink resource; wherein the end time of the first time interval is aligned with the start time of the second time interval, and the time period is equal to the sum of the first time interval and the second time interval; The second configuration includes a first SBFD setting and a second SBFD setting, the first SBFD setting is applied to the first mode, and the second SBFD setting is applied to the second mode, wherein the first SBFD setting is used to overwrite the at least one first downlink resource indicated by the first mode with a first SBFD resource, and to overwrite the at least one first flexible resource indicated by the first mode with a second SBFD resource; and The second SBFD setting is used to perform: The at least one second downlink resource indicated by the second mode is overwritten with a third SBFD resource, and the at least one second flexible resource indicated by the second mode is overwritten with a fourth SBFD resource.

16. The method according to claim 15, wherein the first SBFD setting is not allowed to overwrite the at least one first uplink resource indicated by the first mode, and the second SBFD setting is not allowed to overwrite the at least one second uplink resource indicated by the second mode.

17. The method according to claim 15, wherein the first SBFD resource and the second SBFD resource are continuous in a time domain within the first time interval, and the third SBFD resource and the fourth SBFD resource are continuous in the time domain within the second time interval; The end time of the first SBFD resource is aligned with the start time of the second SBFD resource, and the end time of the third SBFD resource is aligned with the start time of the fourth SBFD resource.

18. The method according to claim 15, wherein the first configuration indicates a first periodicity of the time period, wherein the first periodicity is equal to the sum of the first time interval and the second time interval, and the second periodicity of the at least one SBFD resource configured by the second configuration is the same as the first periodicity; The subcarrier spacing is applied to the first mode, the second mode, the first SBFD setting, and the second SBFD setting.

19. The method according to claim 15, wherein the first SBFD setting includes information of a first time length, and the first time length is equal to the sum of a time domain length of the first SBFD resource and a time domain length of the second SBFD resource; The second SBFD setting includes information of a second time length, and the second time length is equal to the sum of a time domain length of the third SBFD resource and a time domain length of the fourth SBFD resource.

20. A user equipment, characterized in that: include: Transceiver; as well as A processor coupled to the transceiver and configured to execute: controlling the transceiver to receive a first configuration from a network device, wherein the first configuration indicates a plurality of transmission directions for a time period; controlling the transceiver to receive a second configuration from the network device, wherein the second configuration indicates at least one SBFD resource within the time period; and A communication operation is performed with the network device according to the first configuration and the second configuration.

21. A method for setting sub-band full-duplex SBFD resources, applied to a network device, characterized in that: include: Transmitting, by the network device, a first configuration to a user equipment UE, wherein the first configuration indicates a plurality of transmission directions of a time period; Transmitting, by the network device, a second configuration to the UE, wherein the second configuration indicates at least one SBFD resource within the time period; as well as The network device performs a communication operation with the UE according to the first configuration and the second configuration.

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