Communication based on configuration of SBFD-related symbol

Abstract

The present document relates to a method by which a user equipment (UE) configures an SBFD-related symbol and performs communication with a network on the basis of same, and an apparatus therefor. A communication method for a UE therefor comprises: receiving time division duplexing (TDD) uplink (UL)-downlink (DL) pattern configuration information from a network; receiving first full duplex (FD)-related symbol configuration information on the basis of the TDD UL-DL pattern information; and performing communication with the network through an FD-related symbol according to the first FD-related symbol configuration information, wherein the FD-related symbol is consecutively configured to one or more of a DL symbol and a variable symbol according to a TDD UL-DL pattern.

Description

Communication based on SBFD-related symbol settings

[0001] The following description relates to SBFD (Sub-Band Full Duplex)-based communication, and more specifically, to a method and device for a user equipment (UE) to set SBFD-related symbols and perform communication with a network based on the same.

[0002] In wireless communication systems, various technologies are used, such as LTE, LTE-Advanced, and WiFi, and 5G is also included.

[0003] Figure 1 shows the structure of a system for 5G communication.

[0004] Referring to FIG. 1, a Next Generation - Radio Access Network (NG-RAN) may include a base station (20) that provides user plane and control plane protocol termination to a UE (10). For example, the base station (20) may include a next generation Node B (gNB) and / or an evolved Node B (eNB). For example, the UE (10) may be fixed or mobile, and may be referred to by other terms such as a terminal, a mobile station (MS), a user terminal (UT), a subscriber station (SS), a mobile terminal (MT), a wireless device, etc. For example, the base station may be a fixed station that communicates with the UE (10), and may be referred to by other terms such as a base transceiver system (BTS), an access point, etc.

[0005] The example of Fig. 1 illustrates a case that includes only gNB. The base stations (20) can be connected to each other via Xn interfaces. The base stations (20) can be connected to a 5th generation core network (5G Core Network: 5GC) via an NG interface. More specifically, the base station (20) can be connected to an access and mobility management function (AMF) (30) via an NG-C interface, and can be connected to a user plane function (UPF) (30) via an NG-U interface.

[0006]

[0007] Meanwhile, 5G is giving rise to new service types, such as XR (Extended Reality), AI-based services, and self-driving cars. These services feature dynamic traffic in both downlink and uplink directions, and require low latency for packet transmission. To support these diverse new use cases, 5G services could experience explosive growth in traffic load.

[0008] On the other hand, existing semi-static or dynamic TDD UL / DL configurations may have limitations due to transmission delay and interference between operators. Existing FDD schemes may also have limitations in terms of efficient frequency resource utilization in the DL / UL directions. Therefore, the introduction of full duplex (FD) operation within a single carrier is being discussed to achieve low latency and efficient resource utilization in NR.

[0009] In order to solve the above-described problem, one aspect of the present invention proposes a SBFD (Sub-Band Full Duplex)-based communication method applicable to 5G or subsequent next-generation mobile communication systems.

[0010] The technology proposed below is assumed to be applicable not only to the current 5G system but also to 6G and subsequent mobile communication systems. Therefore, the term 'SBFD' used in 5G may be referred to as another term related to FD, but for the convenience of explanation below, the term of 5G will be used for the explanation.

[0011] In one aspect of the present invention, a method and a device therefor are proposed for efficiently setting an FD-related symbol (SBFD symbol) to a UE by a network based on TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern setting information.

[0012] In addition, according to an embodiment, when setting an FD-related symbol (SBFD symbol) as cell-specific setting information, it is intended to specify whether to set it in an additional user-specific manner (UE specific) and the relationship between them.

[0013] Additionally, depending on the embodiment, if the setting of the user-specific FD-related symbol (SBFD symbol) conflicts with the TDD UL-DL pattern setting information, the relationship between them is intended to be defined.

[0014] The problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0015] In one aspect of the present invention for solving the above-described problem, a method for a user equipment (UE) to perform communication with a network in a mobile communication system is proposed, the method including: receiving TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern setting information from the network; receiving first full duplex (FD) related symbol setting information based on the TDD UL-DL pattern information; and performing communication with the network through an FD related symbol according to the first FD related symbol setting information, wherein the FD related symbol is set sequentially to at least one of a DL symbol or a variable symbol according to the TDD UL-DL pattern.

[0016] In another aspect of the present invention for solving the above-described problem, a method for a network to perform communication with a user equipment (UE) in a mobile communication system is proposed, the method including: transmitting TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern configuration information to the UE; transmitting first full duplex (FD) related symbol configuration information based on the TDD UL-DL pattern information to the UE; and performing communication with the UE through an FD related symbol according to the first FD related symbol configuration information, wherein the FD related symbol is sequentially configured to at least one of a DL symbol or a variable symbol according to the TDD UL-DL pattern.

[0017] In another aspect of the present invention for solving the above-described problem, a user equipment (UE) for performing communication with a network in a mobile communication system is proposed, the UE comprising: at least one processor; and at least one computer memory operably connected to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations, the operations including: receiving TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern setting information from the network; receiving first full duplex (FD) related symbol setting information based on the TDD UL-DL pattern information; and performing communication with the network through an FD related symbol according to the first FD related symbol setting information, wherein the FD related symbol is sequentially set to at least one of a DL symbol or a variable symbol according to the TDD UL-DL pattern.

[0018] In another aspect of the present invention for solving the above-described problem, a network for performing communication with a user equipment (UE) in a mobile communication system is proposed, comprising: at least one processor; and at least one computer memory operably connected to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations, the operations including: transmitting TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern configuration information to the UE; transmitting first Full Duplex (FD)-related symbol configuration information based on the TDD UL-DL pattern information to the UE; and performing communication with the UE through an FD-related symbol according to the first FD-related symbol configuration information, wherein the FD-related symbol is sequentially set to at least one of a DL symbol or a variable symbol according to the TDD UL-DL pattern.

[0019] The above FD-related symbols may include SBFD (Sub-Band Full Duplex) symbols, but the term SBFD may be referred to as a different term in next-generation mobile communication standards.

[0020] In addition, when the TDD UL-DL pattern information sets a plurality of TDD UL-DL patterns, the first FD-related symbol setting information can set the FD-related symbol for each of the plurality of TDD UL-DL patterns.

[0021] The first FD-related symbol setting information based on the TDD UL-DL pattern information may include a position of a start slot of the FD-related symbol, a position of a start symbol in the start slot, a position of a final slot of the FD-related symbol, and a position of a final symbol in the final slot.

[0022] The above first FD-related symbol setting information is cell-specific setting information, and the second FD-related symbol setting information can be additionally received from the network in a UE-specific manner.

[0023] At this time, the second FD-related symbol setting information can reset the FD-related symbol based on the first FD-related symbol setting information.

[0024] Additionally, the second FD-related symbol setting information may include information for setting one or more symbols other than the FD-related symbols based on the first FD-related symbol setting information as additional FD-related symbols.

[0025] At this time, one or more symbols other than the FD-related symbol may correspond to a symbol other than the FD-related symbol among one or more of the DL symbols or the variable symbols according to the TDD UL-DL pattern information.

[0026] The UE expects that the second FD-related symbol setting information does not conflict with the first FD-related symbol setting information, and the UE may ignore the second FD-related symbol setting information if the second FD-related symbol setting information conflicts with the first FD-related symbol setting information.

[0027] After receiving the second FD-related symbol setting information, if the third FD-related symbol setting information is received in a cell-specific manner, the second FD-related symbol setting information may be released.

[0028] It is assumed that the FD-related symbol according to the above first FD-related symbol setting information is not changed to a non-FD-related symbol by the TDD UL-DL pattern information.

[0029] However, if the second FD-related symbol setting information conflicts with the TDD UL-DL pattern information, the second FD-related symbol setting information may be set to take precedence.

[0030] According to the embodiments of the present invention as described above, it is possible to clearly define an SBFD-based communication method applicable to 5G or subsequent next-generation mobile communication systems.

[0031] In some embodiments, when the network configures an FD-related symbol (SBFD symbol) to the UE, the configuration may be based on TDD UL-DL pattern configuration information, thereby reducing signaling overhead and clarifying the relationship between the two pieces of configuration information.

[0032] In addition, depending on the embodiment, when setting the FD-related symbol (SBFD symbol) as cell-specific setting information, if setting it in an additional user-specific manner, the relationship between the two can be clearly defined, thereby preventing confusion between the UE and the network.

[0033] The effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by a person having ordinary skill in the art to which the present invention belongs from the description below.

[0034] Figure 1 shows the structure of a system for 5G communication.

[0035] Figure 2 is a drawing for explaining a method of performing FD operation in 5G.

[0036] FIG. 3 and FIG. 4 are drawings for comparing and explaining SBFD and SSFD during FD operation in 5G.

[0037] FIG. 5 is a diagram for explaining a method in which a UE and a network perform communication based on FD-related symbol settings according to one embodiment of the present invention.

[0038] FIG. 6 is a diagram for explaining TDD UL-DL pattern setting according to one embodiment of the present invention.

[0039] FIG. 7 is a diagram for explaining SBFD symbol settings considering a TDD UL-DL pattern according to one embodiment of the present invention.

[0040] FIG. 8 is a diagram for explaining a case in which user-specific SBFD symbol setting information is additionally received according to one embodiment of the present invention.

[0041] FIG. 9 is a diagram for explaining the priorities of cell-specific SBFD symbol settings and user-specific SBFD symbol settings according to one embodiment of the present invention.

[0042] Figure 10 illustrates a wireless device to which the present technology can be applied.

[0043] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In addition, in the drawings, parts irrelevant to the description have been omitted to clearly explain the present invention, and similar parts have been designated with similar reference numerals throughout the specification.

[0044] Throughout the specification, whenever a part is said to "include" a component, this does not mean that it excludes other components, but rather that it may include other components, unless otherwise stated.

[0045]

[0046] As described above, one aspect of the present invention proposes a method and device for a UE to configure SBFD-related symbols and communicate with a network based on these symbols. To this end, the FD method currently being discussed in 5G will be described in detail.

[0047] Figure 2 is a drawing for explaining a method of performing FD operation in 5G.

[0048] Referring to Fig. 2, a method of applying FD operation in an intra-carrier is illustrated. Specifically, the FD operation may be considered to be the Sub-Band Full Duplex (SBFD) method illustrated in Fig. 2 (a) and the Spectrum-Sharing Full Duplex (SSFD) method illustrated in Fig. 2 (b).

[0049] In the case of SBFD, transmission and reception of DL and UL can be performed using different frequency resources on the same carrier. That is, DL and UL can have different frequency resources for the same time resource. In the case of SSFD, transmission and reception of DL and UL are performed using the same frequency resources or overlapping frequency resources on the same carrier. That is, DL and UL can be assigned the same or overlapping frequency resources for the same time resource.

[0050] In the case of SBFD, it may be referred to as 'Subband-Wise Full Duplex' or 'Subband non-overlapping Full Duplex' considering the non-overlapping characteristic that distinguishes it from SSFD.

[0051]

[0052] FIG. 3 and FIG. 4 are drawings for comparing and explaining SBFD and SSFD during FD operation in 5G.

[0053] First, SBFD can be considered in FIG. 3 (a) and FIG. 4 (a). Specifically, referring to FIG. 3 (a), the subband region of the DL and the subband region of the UL may not overlap each other. In this case, a guard band may exist between the subband region of the DL and the subband region of the UL. Alternatively, referring to FIG. 2 (a), the SBFD operation can be performed based on a resource pattern of a cell or base station. For example, in the resource pattern, a half-duplex (HD) slot / symbol and an SBFD slot / symbol can be TDM'd with each other.

[0054] Alternatively, SSFD may be considered as examples such as those in FIG. 3 (b) and FIG. 4 (b). Specifically, referring to FIG. 3 (b), the subband region of the DL and the subband region of the UL may overlap with each other. Alternatively, referring to FIG. 4 (b), the SSFD operation may be performed based on a resource pattern of a cell or base station. For example, in the resource pattern, a half-duplex (HD) slot / symbol and an SSFD slot / symbol may be TDM'd with each other.

[0055]

[0056] These FD operations can be combined with existing half-duplex (HD) operations. For example, in existing half-duplex-based TDD operations, only some time resources can be used for FD operations. In the time resources where FD operations are performed, SBFD or SSFD operations can be performed.

[0057] In the case of the FD operation described above, the FD operation can be performed from both the gNB perspective and the UE perspective. For example, both the gNB and the UE can simultaneously transmit and receive DL / UL using the same or different frequency resources in the same time resource. Alternatively, only the gNB can perform the FD operation (in the same time resource), and the UE can perform the HD operation. The gNB can simultaneously transmit and receive DL and UL using the same or different frequency resources in the same time resource, but the UE can perform only DL reception or UL transmission in a specific time resource. In this case, the gNB can perform the FD operation in a way that performs DL transmission and UL reception for different UEs at the same time point (or, the same time resource).

[0058] As described above, in a network such as a gNB that performs FD operations, whether a UE can perform FD operations may be related to the UE's performance. Thus, if a UE is aware of and capable of performing FD operations in a network, the UE may be referred to as an "FD-aware UE."

[0059] In addition, among the SBFD and SSFD described above, one embodiment of the present invention proposes an FD operation using the SBFD method. The SBFD method supports HDs that do not overlap with each other in sub-band units, and thus has the advantage of being able to operate flexibly not only from the perspective of SBFD-aware UEs but also from the perspective of legacy UEs that are unaware of the SBFD situation.

[0060]

[0061] Below, a method for performing communication by setting FD-related symbols (SBFD symbols) under this background is described.

[0062] FIG. 5 is a diagram for explaining a method in which a UE and a network perform communication based on FD-related symbol settings according to one embodiment of the present invention.

[0063] First, the UE (510) can receive TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern setting information from the network (520) (S510).

[0064] According to the 5G standard, TDD UL-DL pattern information can be configured statically or semi-statically via System Information Block (SIB) 1 and / or Radio Resource Control (RRC) signals, and can be set in a cell-specific manner and / or a user-specific manner. Such TDD UL-DL pattern information is described below with reference to FIG. 6.

[0065] In addition, the UE (510) can receive FD-related symbol configuration information based on the TDD UL-DL pattern information from the network (520) (S520). The 'FD-related symbol' assumes an SBFD symbol, but may be information for configuring a term change in 6G and / or other FD-related symbols related to FIGS. 2 to 4. However, in the following description, for the sake of convenience, this will be simply expressed as an SBFD symbol.

[0066] In one embodiment of the present invention, it is assumed that an SBFD symbol set based on FD-related symbol setting information (SBFD symbol setting information) is set consecutively to one or more of a DL symbol (D) or a variable symbol (F) according to the TDD UL-DL pattern.

[0067] Based on these SBFD symbol settings, the UE (510) can communicate with the network (520) (S530).

[0068]

[0069] FIG. 6 is a diagram for explaining TDD UL-DL pattern setting according to one embodiment of the present invention.

[0070] Figure 6 shows an example of a TDD UL-DL pattern, where "D" represents a DL slot / symbol, "D / F" represents a DL and variable symbol, "F" represents a variable slot / symbol, "F / U" represents a variable and UL symbol, and "U" represents a UL slot / symbol.

[0071] Such TDD UL-DL pattern information can be configured statically or semi-statically via SIB 1 and / or RRC signaling as described above, and can be configured in a cell-specific manner and / or a user-specific manner. The top of Fig. 6 illustrates a pattern (610) configured via tdd-UL-DL-ConfigurationCommon in a cell-specific manner, the center of Fig. 6 illustrates an additional pattern (620) configured via tdd-UL-DL-ConfigurationDedicated in a user-specific manner, and the bottom of Fig. 6 illustrates a resulting pattern (630).

[0072] Additionally, the TDD UL-DL pattern can also be dynamically configured on a group basis or in a UE-specific manner in the form of slot formats by RRC and DCI (e.g., Slot Format Indication (SFI)).

[0073]

[0074] FIG. 7 is a diagram for explaining SBFD symbol settings considering a TDD UL-DL pattern according to one embodiment of the present invention.

[0075] In one embodiment of the present invention, it is assumed that the time-frequency position of an SBFD subband within a TDD carrier can be set in a cell-specific manner for an RRC-connected UE. Such cell-specific SBFD symbol configuration information can be determined based on a TDD UL-DL pattern as illustrated in FIG. 7, and in one embodiment of the present invention, it is proposed that an SBFD symbol can be allocated from the start symbol of the first D slot to the last F symbol in the F / U slot (710).

[0076] The D / F slot may represent a slot structure in which DL symbols and variable symbols are arranged as illustrated in 720 of FIG. 7, and the F / U slot may represent a slot structure in which variable symbols and UL symbols are arranged as illustrated in 730 of FIG. 7.

[0077]

[0078] Meanwhile, in one embodiment of the present invention, when TDD UL-DL pattern information sets a plurality of TDD UL-DL patterns, it is assumed that SBFD symbol setting information is set for each of the plurality of TDD UL-DL patterns.

[0079] If one TDD UL-DL pattern is set, the cell-specific SBFD symbol setting information in the embodiment illustrated in FIG. 7 can set consecutive SBFD symbols as follows based on the TDD UL-DL pattern.

[0080] (1) Information on the position of the starting slot of the SBFD symbol and the starting position of the symbol in that slot, and information on the position of the ending slot of the SBFD symbol and the position of the last SBFD symbol in that slot.

[0081] (2) In addition to the method of (1) above, setting of the SBFD symbol as the start and end positions of the SBFD symbol within the cell-specific slot configuration cycle.

[0082] (3) Location of the starting slot of the SBFD symbol and the starting position information of the symbol in that slot and the number of SBFD symbols allocated consecutively.

[0083] (4) A combination of the position of the starting slot of the SBFD symbol and the starting position information of the symbol in that slot and the number of consecutively allocated SFBF slots and SBFD symbols, for example, the number of slots that are complete SBFD symbols and the number of allocated SBFD symbols in the starting slot and the ending slot of the SBFD symbol.

[0084] Meanwhile, when two TDD-UL-DL patterns are set, it is possible to indicate for each TDD UL-DL pattern the method to be applied to the above-described one pattern.

[0085] In one embodiment of the present invention, it is assumed that the time-frequency location of an SBFD subband within a TDD carrier can be configured in a cell-specific manner for an RRC-connected UE. The cell-specific configuration for the frequency location of the SBFD subband can be separately configured according to each Subcarrier Spacing (SCS) configuration of the SCS-SpecificCarrierList. For each SCS configuration, a starting PRB can be specified according to the PRB and offset values ​​determined by the SCS configuration.

[0086] The above-described cell-specific SBFD symbol configuration information can be configured by a combination of one or more of upper layer signaling such as RRC or MAC-CE and DCI.

[0087]

[0088] FIG. 8 is a diagram for explaining a case in which user-specific SBFD symbol setting information is additionally received according to one embodiment of the present invention.

[0089] Specifically, in FIG. 8, the UE (510) receives TDD UL-DL pattern setting information (S510) and SBFD symbol setting information (S810) from the network (520) as in FIG. 5, but FIG. 8 specifically illustrates that the SBFD symbol setting information received primarily is cell-specific setting information.

[0090] In the embodiment illustrated in FIG. 8, it is proposed to receive second FD-related symbol setting information (S820) in a user-specific manner in addition to the cell-specific SBFD symbol setting information (S810) described above.

[0091] In one embodiment of the present invention, such user-specific SBFD symbol setting information may be configured to set an SBFD symbol in the same manner as the cell-specific SBFD symbol setting information according to the embodiment described above with reference to FIG. 7. In this case, the user-specific SBFD symbol allocation information may be allowed to overlap with the cell-specific SBFD symbol allocation.

[0092] In another embodiment of the present invention, user-specific SBFD symbol configuration information may be allowed to be allocated in a non-contiguous manner with cell-specific SBFD symbol allocation.

[0093] In another embodiment of the present invention, user-specific SBFD symbol configuration information can be allocated in a form that is continuous with cell-specific SBFD symbol allocation.

[0094] For these embodiments, user-specific SBFD symbol allocation may be operated in a manner that resets the positions of the SBFD start and end symbols based on cell-specific allocation criteria.

[0095] Meanwhile, in another embodiment of the present invention, a user-specific SBFD symbol can be set using a symbol-level time offset value based on the start and end positions of the cell-specific SBFD symbol in the above method. In this case, implementation is possible in both cases where the SBFD symbol allocation interval is continuous and non-continuous.

[0096] According to the embodiments described above, the UE can determine an SBFD symbol based on cell-specific SBFD symbol allocation information and user-specific SBFD symbol allocation information (S830).

[0097]

[0098] Meanwhile, one embodiment of the present invention proposes that user-specific SBFD symbol setting information can additionally set a non-SBFD symbol as an SBFD symbol based on cell-specific SBFD symbol setting information.

[0099] Specifically, based on cell-specific allocation information, indication information for non-SBFD symbols can be indicated through a bitmap within a TDD-UL-DL pattern period. In this method, the size of the bitmap can be set to the total number of symbols within the TDD-UL-DL pattern period. However, in this method, the size of the bitmap can also be set to the total number of symbols for slots excluding U slots within the TDD-UL-DL pattern period. Furthermore, in this method, the size of the bitmap can be configured and indicated based on non-SBFD symbols excluding cell-specific SBFD symbols in all slots of the TDD-UL-DL pattern period or all slots excluding U slots.

[0100] Among these examples, constructing a bitmap based on the remaining non-SBFD symbols, excluding the U slot and cell-specific preset SBFD symbols, can enable overhead minimization and efficient user-specific SBFD symbol allocation.

[0101]

[0102] FIG. 9 is a diagram for explaining the priorities of cell-specific SBFD symbol settings and user-specific SBFD symbol settings according to one embodiment of the present invention.

[0103] The UE according to the present embodiment assumes that the user-specific SBFD symbol configuration does not conflict with the cell-specific SBFD symbol configuration. If a conflict does occur, one embodiment of the present invention may ignore the user-specific SBFD configuration and follow the cell-specific SBFD symbol configuration.

[0104] In addition, in one embodiment of the present invention, it is proposed that the user-specific SBFD symbol configuration is initialized when the cell-specific SBFD symbol configuration is changed. Specifically, FIG. 9 illustrates a case where new cell-specific SBFD symbol configuration information is received (S910) after the user-specific configuration information is received as the second SBFD symbol configuration information (S820). In this case, when the cell-specific SBFD symbol configuration information is changed, the UE can release the previously received user-specific SBFD symbol configuration information (S920).

[0105]

[0106] Meanwhile, in terms of the operational method for the validity period of a user-specific SBFD symbol setting, it can be assumed that after a user-specific SBFD symbol setting is set, the setting is valid until another user-specific SBBFD symbol setting comes.

[0107] Additionally, as an operational method for the validity period of a user-specific SBFD symbol setting, a specific period may be set after the user-specific SBFD symbol setting is set, and the user-specific SBFD symbol setting may be assumed to be valid until that period.

[0108] In these embodiments, the period can be set and operated in slot or symbol units, and this can be indicated to the UE when setting a user-specific SBFD symbol. In addition, the period can be set and operated as an integer multiple of the TDD-UL-DL pattern period.

[0109]

[0110] Meanwhile, in one embodiment of the present invention, it is assumed that the SBFD symbol according to the cell-specific SBFD symbol configuration information described above is not changed into a non-SBFD symbol by the TDD UL-DL pattern configuration information. Specifically, it is assumed that when the TDD UL-DL pattern configuration information is transmitted as TDD-UL-DL-ConfigDedicated and SFI (slot format indicator) by DCI format 2_0, the SBFD symbol according to the cell-specific SBFD symbol configuration information is not changed into a non-SBFD symbol.

[0111] However, in these embodiments, the following is proposed for cases where user-specific SBFD symbol settings are additionally received, as illustrated in FIGS. 8 and 9.

[0112] When a user-specific SBFD symbol setting is additionally received, a conflict may occur between the user-specific slot configurations such as TDD-UL-DL-ConfigDedicated and SFI, which change an existing F slot or symbol to a U slot or symbol, and the user-specific SBFD symbol setting, which attempts to set an F slot or symbol to an SBFD symbol, in relation to the interrelationship with the existing user-specific slot configurations such as TDD-UL-DL-ConfigDedicated and SFI.

[0113] In this case, one embodiment of the present invention can prioritize operation over a user-specific SBFD symbol and a user-specific slot configuration that is given priority. For example, if a user-specific SBFD is given priority, a conflicting user-specific slot configuration is ignored, and the opposite is also applicable.

[0114] Another embodiment of the present invention proposes to prioritize and operate specific settings among user-specific SBFD symbols and user-specific slot configurations. For example, if the user-specific slot configuration is given a higher priority and operated, regardless of the established temporal order, if the user-specific slot configuration and SBFD symbol settings conflict, the user-specific slot configuration settings can be followed. The opposite example is also possible, depending on the priority setting.

[0115] In another embodiment of the present invention, when a conflict occurs between a user-specific SBFD symbol and a user-specific slot configuration, both can be ignored and the cell-specific slot configuration and SBFD symbol settings can be followed.

[0116]

[0117] Figure 10 illustrates a wireless device to which the present technology can be applied.

[0118] Referring to FIG. 10, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals via various wireless access technologies (e.g., LTE, NR). Here, the first wireless device (100) and the second wireless device (200) can correspond to the UE (510) and the network (520) of FIG. 5, respectively.

[0119] A first wireless device (100) includes one or more processors (102) and one or more memories (104), and may further include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memories (104) and / or the transceivers (106), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (102) may process information in the memory (104) to generate first information / signal, and then transmit a wireless signal including the first information / signal via the transceiver (106). In addition, the processor (102) may receive a wireless signal including second information / signal via the transceiver (106), and then store information obtained from signal processing of the second information / signal in the memory (104). The memory (104) may be connected to the processor (102) and may store various information related to the operation of the processor (102). For example, the memory (104) may perform some or all of the processes controlled by the processor (102), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement a wireless communication technology (e.g., LTE E-UTRA, 5G NR). The transceiver (106) may be connected to the processor (102) and may transmit and / or receive wireless signals via one or more antennas (108). The transceiver (106) may include a transmitter and / or a receiver. The transceiver (106) may be used interchangeably with an RF (Radio Frequency) unit. In the present invention, a wireless device may also mean a communication modem / circuit / chip.

[0120] The second wireless device (200) includes one or more processors (202), one or more memories (204), and may further include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memories (204) and / or the transceivers (206), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (202) may process information in the memory (204) to generate third information / signals, and then transmit a wireless signal including the third information / signals via the transceivers (206). Furthermore, the processor (202) may receive a wireless signal including fourth information / signals via the transceivers (206), and then store information obtained from signal processing of the fourth information / signals in the memory (204). The memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, the memory (204) may store software code including commands for performing some or all of the processes controlled by the processor (202) or for performing the descriptions, functions, procedures, proposals, methods and / or operation flowcharts disclosed in this document. Here, the processor (202) and the memory (204) may be part of a communication modem / circuit / chip designed to implement a wireless communication technology (e.g., LTE E-UTRA, 5G NR). The transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals via one or more antennas (208). The transceiver (206) may include a transmitter and / or a receiver. The transceiver (206) may be used interchangeably with an RF unit. In the present invention, a wireless device may also mean a communication modem / circuit / chip.

[0121] Hereinafter, the hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP). One or more processors (102, 202) may generate one or more Protocol Data Units (PDUs) and / or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. One or more processors (102, 202) may generate messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. One or more processors (102, 202) can generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, proposals and / or methods disclosed herein, and provide the signals to one or more transceivers (106, 206). One or more processors (102, 202) can receive signals (e.g., baseband signals) from one or more transceivers (106, 206) and obtain PDUs, SDUs, messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein.

[0122] One or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, or a microcomputer. One or more processors (102, 202) may be implemented by hardware, firmware, software, or a combination thereof. For example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) may be included in one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software configured to perform one or more processors (102, 202) or stored in one or more memories (104, 204) and executed by one or more processors (102, 202). The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and / or sets of instructions.

[0123] One or more memories (104, 204) may be coupled to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. The one or more memories (104, 204) may be configured as ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer-readable storage media, and / or combinations thereof. The one or more memories (104, 204) may be located internally and / or externally to the one or more processors (102, 202). Additionally, the one or more memories (104, 204) may be coupled to the one or more processors (102, 202) via various technologies, such as wired or wireless connections.

[0124] One or more transceivers (106, 206) can transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or flowcharts of this document, to one or more other devices. One or more transceivers (106, 206) can receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or flowcharts of this document, from one or more other devices. For example, one or more transceivers (106, 206) can be connected to one or more processors (102, 202) and can transmit and receive wireless signals. For example, one or more processors (102, 202) can control one or more transceivers (106, 206) to transmit user data, control information, or wireless signals to one or more other devices. Additionally, one or more processors (102, 202) may control one or more transceivers (106, 206) to receive user data, control information, or wireless signals from one or more other devices. Additionally, one or more transceivers (106, 206) may be coupled to one or more antennas (108, 208), and one or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, or the like, as referred to in the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed herein, via one or more antennas (108, 208). In this document, one or more antennas may be multiple physical antennas or multiple logical antennas (e.g., antenna ports). One or more transceivers (106, 206) can convert received user data, control information, wireless signals / channels, etc. from RF band signals to baseband signals in order to process the received user data, control information, wireless signals / channels, etc. using one or more processors (102, 202).One or more transceivers (106, 206) may convert user data, control information, wireless signals / channels, etc. processed by one or more processors (102, 202) from baseband signals to RF band signals. For this purpose, one or more transceivers (106, 206) may include an (analog) oscillator and / or filter.

[0125]

[0126] The detailed description of the preferred embodiments of the present invention disclosed above has been provided to enable those skilled in the art to implement and practice the present invention. While the above description has been made with reference to preferred embodiments of the present invention, those skilled in the art will appreciate that various modifications and variations can be made to the present invention without departing from the scope of the present invention. For example, those skilled in the art can utilize the individual components described in the above-described embodiments in combination with each other.

[0127] Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0128] The method and device for setting SBFD-related symbols by a UE according to embodiments of the present invention as described above and performing communication with a network based thereon are suitable for use in the SBFD-related communication environment of a 5G system in 3GPP, but can also be used in the same manner in 6G of 3GPP and subsequent next-generation mobile communication systems.

Claims

1. In a method for a user equipment (UE) to communicate with a network in a mobile communication system, Receive TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern setting information from the above network; Receive first full duplex (FD) related symbol setting information based on the above TDD UL-DL pattern information; and Including performing communication with the network through an FD-related symbol according to the above first FD-related symbol setting information, The above FD-related symbol is set consecutively to one or more of the DL symbols or variable symbols according to the TDD UL-DL pattern. UE's communication method.

2. In paragraph 1, The above FD related symbol includes the SBFD (Sub-Band Full Duplex) symbol. UE's communication method.

3. In paragraph 1, If the above TDD UL-DL pattern information sets multiple TDD UL-DL patterns, The above first FD-related symbol setting information sets the FD-related symbol for each of the plurality of TDD UL-DL patterns. UE's communication method.

4. In paragraph 1, The first FD related symbol setting information based on the above TDD UL-DL pattern information is, The position of the starting slot of the above FD-related symbol, The position of the starting symbol in the above starting slot, The position of the final slot of the above FD-related symbol, and Final symbol position in the final slot above including, UE's communication method.

5. In paragraph 1, The above first FD related symbol setting information is cell-specific setting information, Additional receiving of second FD related symbol setting information in a UE specific manner from the above network, UE's communication method.

6. In paragraph 5, The above 2nd FD related symbol setting information is: Resetting the FD-related symbol based on the above first FD-related symbol setting information, UE's communication method.

7. In paragraph 5, The above 2nd FD related symbol setting information is: Including information for setting one or more symbols other than the FD-related symbols based on the first FD-related symbol setting information as additional FD-related symbols, UE's communication method.

8. In paragraph 7, One or more symbols other than the above FD-related symbols, Corresponding to a symbol other than the FD-related symbol among at least one of the DL symbol or the variable symbol according to the TDD UL-DL pattern information, UE's communication method.

9. In paragraph 5, The UE expects that the second FD-related symbol setting information does not conflict with the first FD-related symbol setting information, The UE ignores the second FD-related symbol setting information if the second FD-related symbol setting information conflicts with the first FD-related symbol setting information. UE's communication method.

10. In paragraph 5, After receiving the above 2nd FD related symbol setting information, when receiving the 3rd FD related symbol setting information in a cell-specific manner, The above 2nd FD related symbol setting information is released, UE's communication method.

11. In paragraph 5, The FD-related symbol according to the above first FD-related symbol setting information is not changed to a non-FD-related symbol by the TDD UL-DL pattern information. UE's communication method.

12. In paragraph 11, If the above 2nd FD related symbol setting information conflicts with the TDD UL-DL pattern information, the 2nd FD related symbol setting information is set to priority. UE's communication method.

13. In a method for a network to communicate with a user equipment (UE) in a mobile communication system, Transmit TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern setting information to the UE; Transmitting first full duplex (FD) related symbol setting information based on the TDD UL-DL pattern information to the UE; and Including performing communication with the UE through an FD-related symbol according to the above first FD-related symbol setting information, The above FD-related symbol is set consecutively to one or more of the DL symbols or variable symbols according to the TDD UL-DL pattern. Communication methods in networks.

14. In a user equipment (UE) that performs network communication in a mobile communication system, at least one processor; and At least one computer memory operably connected to said at least one processor and storing instructions that, when executed, cause said at least one processor to perform operations; The above actions are, Receive TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern setting information from the above network; Receive first full duplex (FD) related symbol setting information based on the above TDD UL-DL pattern information; and Including performing communication with the network through an FD-related symbol according to the above first FD-related symbol setting information, The above FD-related symbol is set consecutively to one or more of the DL symbols or variable symbols according to the TDD UL-DL pattern. User device.

15. In a network that performs communication with a user equipment (UE) in a mobile communication system, at least one processor; and At least one computer memory operably connected to said at least one processor and storing instructions that, when executed, cause said at least one processor to perform operations; The above actions are, Transmit TDD (Time Division Duplexing) UL (Uplink)-DL (Downlink) pattern setting information to the UE; Transmitting first full duplex (FD) related symbol setting information based on the TDD UL-DL pattern information to the UE; and Including performing communication with the UE through an FD-related symbol according to the above first FD-related symbol setting information, The above FD-related symbol is set consecutively to one or more of the DL symbols or variable symbols according to the TDD UL-DL pattern. network.

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