Method, apparatus and terminal for determining transmission direction, and network-side device

Abstract

The application discloses a transmission direction determination method and device, a terminal and a network side equipment, and belongs to the technical field of communication. The transmission direction determination method of the embodiment of the application comprises the following steps: a terminal determines a transmission direction corresponding to a time unit according to first indication signaling. The transmission direction comprises an uplink transmission direction, a downlink transmission direction or a flexible transmission direction. The flexible transmission direction can be indicated as at least one of the following: the uplink transmission direction; the downlink transmission direction; a flexible direction without receiving and transmitting.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method, apparatus, terminal, and network-side equipment for determining the transmission direction. Background Technology

[0002] In flexible / full duplex network systems, at any given time, a terminal lacking full-duplex capability can only transmit or receive, while the network can simultaneously transmit and receive. Therefore, different terminals can use different frequency resources for transmission and reception at the same time. Accordingly, the network needs to provide signaling to the terminals to configure and / or indicate the transmission direction of different frequency resources: i.e., downlink (D), uplink (U), and flexible (F).

[0003] In order to coexist with adjacent channels and reduce interference to adjacent channels; and in order to effectively coexist with legacy UEs (or UEs prior to Rel-18) and other terminals with different service requirements in the same network, different frequency resources in the same time unit will be indicated as uplink, downlink, or flexible. However, terminals without full-duplex capability cannot determine the transmission direction of that time unit, and therefore cannot perform the corresponding downlink processing or uplink transmission. Summary of the Invention

[0004] This application provides a method, apparatus, terminal, and network-side device for determining the transmission direction, which can solve the problem of how a terminal without full-duplex capability can determine the transmission direction of a time unit.

[0005] Firstly, a method for determining the transmission direction is provided, including:

[0006] The terminal determines the transmission direction corresponding to the time unit according to the first instruction signaling, and the transmission direction includes the uplink transmission direction, the downlink transmission direction, or the flexible transmission direction;

[0007] The flexible transmission direction can be indicated as at least one of the following:

[0008] Uplink transmission direction;

[0009] Downlink transmission direction;

[0010] A flexible direction that neither receives nor sends.

[0011] Secondly, a method for determining the transmission direction is provided, including:

[0012] The network-side device sends a first indication signaling message, which is used to determine the transmission direction corresponding to the time unit. The transmission direction includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction.

[0013] The flexible transmission direction can be indicated as at least one of the following:

[0014] Uplink transmission direction;

[0015] Downlink transmission direction;

[0016] A flexible direction that neither receives nor sends.

[0017] Thirdly, a device for determining the transmission direction is provided, comprising:

[0018] The first determining module is used to determine the transmission direction corresponding to the time unit according to the first indication signaling, wherein the transmission direction includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction;

[0019] The flexible transmission direction can be indicated as at least one of the following:

[0020] Uplink transmission direction;

[0021] Downlink transmission direction;

[0022] A flexible direction that neither receives nor sends.

[0023] Fourthly, a device for determining the transmission direction is provided, comprising:

[0024] The first transmission module is used to send a first indication signaling, which is used to determine the transmission direction corresponding to the time unit. The transmission direction includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction.

[0025] The flexible transmission direction can be indicated as at least one of the following:

[0026] Uplink transmission direction;

[0027] Downlink transmission direction;

[0028] A flexible direction that neither receives nor sends.

[0029] Fifthly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0030] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is used to determine the transmission direction corresponding to a time unit according to a first indication signaling, the transmission direction including an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction;

[0031] The flexible transmission direction can be indicated as at least one of the following:

[0032] Uplink transmission direction;

[0033] Downlink transmission direction;

[0034] A flexible direction that neither receives nor sends.

[0035] In a seventh aspect, a network-side device is provided, the network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in the second aspect.

[0036] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a first indication signaling, the first indication signaling being used to determine the transmission direction corresponding to a time unit, the transmission direction including an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction;

[0037] The flexible transmission direction can be indicated as at least one of the following:

[0038] Uplink transmission direction;

[0039] Downlink transmission direction;

[0040] A flexible direction that neither receives nor sends.

[0041] A ninth aspect provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0042] In a tenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0043] Eleventhly, a computer program / program product is provided, the computer program / program product being stored in a non-volatile storage medium, the program / program product being executed by at least one processor to implement the steps of the method for determining the transmission direction as described in the first or second aspect.

[0044] In this embodiment of the application, the terminal determines the transmission direction corresponding to the time unit according to the first instruction signaling, such as the uplink transmission direction, the downlink transmission direction, or the flexible transmission direction, so that the terminal without full-duplex capability can determine the transmission direction of the time unit in the flexible / full-duplex system. Attached Figure Description

[0045] Figure 1 This diagram illustrates the structure of a communication system to which embodiments of this application can be applied.

[0046] Figure 2 One of the flowcharts illustrating the method for determining the transmission direction according to an embodiment of this application;

[0047] Figure 3 One of the configuration diagrams illustrating the transmission direction of the frequency domain unit in the embodiments of this application;

[0048] Figure 4 This is the second schematic diagram illustrating the configuration of the transmission direction of the frequency domain unit in this application embodiment;

[0049] Figure 5 The third schematic diagram illustrating the configuration of the transmission direction of the frequency domain unit in this application embodiment;

[0050] Figure 6 A second flowchart illustrating the method for determining the transmission direction according to an embodiment of this application;

[0051] Figure 7 One of the schematic diagrams of a transmission direction determination device according to an embodiment of this application;

[0052] Figure 8 A structural block diagram illustrating a communication device according to an embodiment of this application;

[0053] Figure 9 A structural block diagram illustrating the terminal in an embodiment of this application;

[0054] Figure 10 A second schematic diagram of the module of the method and apparatus for determining the transmission direction according to an embodiment of this application;

[0055] Figure 11 This is a structural block diagram illustrating the network-side device according to an embodiment of this application. Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0057] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0058] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0059] Figure 1This diagram illustrates a structural diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include smartwatches, wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side equipment 12 can be a base station or core network equipment. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0060] The method for determining the transmission direction provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0061] like Figure 2 As shown in the figure, this application embodiment provides a method for determining the transmission direction, including:

[0062] Step 201: The terminal determines the transmission direction corresponding to the time unit according to the first instruction signaling, wherein the transmission direction includes the uplink transmission direction, the downlink transmission direction, or the flexible transmission direction;

[0063] The flexible transmission direction can be indicated as at least one of the following:

[0064] Uplink transmission direction;

[0065] Downlink transmission direction;

[0066] A flexible direction that neither receives nor sends.

[0067] Specifically, the aforementioned flexible transmission direction can be further indicated as an uplink transmission direction, a downlink transmission direction, or a flexible direction that neither receives nor transmits, through the aforementioned first indication signaling.

[0068] In this embodiment, the terminal is a terminal in a flexible / full-duplex system that does not have full-duplex capability. The aforementioned time unit includes X1 time slots, or X2 symbols, where X1≥1 and X2≥1. The aforementioned frequency domain unit can be at least one of subband, bandwidth portion (BWP), resource block set (RB set), and resource block group set (RBG).

[0069] Optionally, the aforementioned first instruction signaling includes at least one of the following:

[0070] High-level signaling;

[0071] Radio Resource Control (RRC) signaling;

[0072] Dynamic signaling;

[0073] System message.

[0074] Further optionally, the system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information (XDD / TDD-UL-DL-ConfigurationCommon).

[0075] The RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information (XDD / TDD-UL-DL-ConfigDedicated).

[0076] In one embodiment of this application, the downlink transmission direction (D), uplink transmission direction (U), and flexible transmission direction (F) configured by XDD / TDD-UL-DL-ConfigurationCommon and / or XDD / TDD-UL-DL-ConfigDedicated semi-static configuration are respectively denoted as Semi-static D, Semi-static U, and Semi-static F.

[0077] Semi-static downlink transmissions configured by higher layers / RRC, such as PDCCH, PDSCH, CSI-RS, PRS, etc., are denoted as RRCD;

[0078] Semi-static uplink transmissions configured by higher layers / RRC, such as SRS, PUSCH, PUCCH, PRACH, etc., are denoted as RRC U;

[0079] D, U, or F indicated by dynamic signaling, such as DCI (which can be user-specific control signaling: UE-specific DCI and / or group-common control signaling: group-common DCI), are denoted as Dynamic D, Dynamic U, and Dynamic F;

[0080] The transmission direction corresponding to the SSB position (ssb-PositionsInBurst) in system message SIB1 or the ssb-PositionsInBurst in the serving cell configuration common signaling (ServingCellConfigCommon) is denoted as SSB inssb-PositionsInBurst.

[0081] The control resource set configured by PDCCH-ConfigSIB1 in the main information block (MIB) for the Type 0 PDCCH common search space (Type 0-PDCCH CSS) is denoted as CORESET for Type 0-PDCCH CSS.

[0082] In this embodiment of the application, the terminal determines the transmission direction corresponding to the time unit according to the first instruction signaling, such as the uplink transmission direction, the downlink transmission direction, or the flexible transmission direction, so that the terminal without full-duplex capability can determine the transmission direction of the time unit in the flexible / full-duplex system.

[0083] Optionally, in this embodiment of the application, the transmission direction corresponding to the time unit can be directly indicated by the first indication signaling, or the transmission direction corresponding to at least one frequency domain unit within the time unit can be indicated by the first indication signaling, and the terminal then determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to at least one frequency domain unit.

[0084] Based on this, the terminal determines the transmission direction corresponding to the time unit according to the first indication signaling, including:

[0085] The terminal determines the transmission direction corresponding to at least one frequency domain unit within the time unit according to the first instruction signaling, wherein the transmission direction corresponding to the frequency domain unit includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction;

[0086] The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit.

[0087] In this embodiment of the application, the terminal determines the transmission direction corresponding to at least one frequency domain unit within a time unit according to the first instruction signaling. The transmission direction corresponding to the frequency domain unit includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction. Based on the transmission direction corresponding to the frequency domain unit, the terminal determines the transmission direction corresponding to the time unit, thereby enabling a terminal without full-duplex capability to determine the transmission direction of the time unit in a flexible / full-duplex system.

[0088] In this embodiment, the bandwidth of a frequency band, cell, carrier, or carrier set BWP supporting full-duplex or flexible-duplex operation is denoted as N_bw. In a time unit, N_bw can be divided into at least one frequency domain unit, and the sum of the bandwidths of at least one frequency domain unit is less than or equal to N_bw. The frequency domain unit in the following embodiments is illustrated using an RB set as an example.

[0089] As a first optional implementation, the terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including:

[0090] When the transmission direction corresponding to the frequency domain unit includes at least one of the following (wherein, the transmission direction corresponding to the frequency domain unit can be understood as the transmission direction corresponding to all frequency domain units on the N carriers configured for the terminal, or the transmission direction corresponding to all frequency domain units on the BWP is activated), the terminal determines the transmission direction corresponding to the time unit as the downlink transmission direction.

[0091] The system message semi-static indicates the downlink transmission direction, i.e., Semi-static D;

[0092] The downlink transmission direction indicated by the semi-static RRC signaling, i.e., Semi-static D;

[0093] Downlink transmission indicated by higher-layer signaling or RRC signaling, i.e., RRC D;

[0094] Dynamic signaling indicates the downlink transmission direction, i.e., Dynamic D;

[0095] The transmission direction corresponding to the position of the synchronization signal / physical broadcast channel signal block SSB in system message 1, i.e., SSBin ssb-PositionsInBurst;

[0096] The transmission direction corresponding to the SSB location indicated in the public signaling configuration of the serving cell, i.e., ServingCellConfigCommon;

[0097] The transmission direction corresponding to the control resource set used in the main information block for the common search space of the first physical downlink control channel (PDCCH) is CORESET for Type0-PDCCH CSS, where the first PDCCH is Type0-PDCCH.

[0098] As a second optional implementation, the terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including:

[0099] When the transmission direction corresponding to the frequency domain unit includes at least one of the following (wherein, the transmission direction corresponding to the frequency domain unit can be understood as the transmission direction corresponding to all frequency domain units on the N carriers configured for the terminal, or the transmission direction corresponding to all frequency domain units activated on the BWP), the terminal determines the transmission direction corresponding to the time unit as the uplink transmission direction.

[0100] The uplink transmission direction indicated by the system message semi-static, i.e., Semi-static U;

[0101] The uplink transmission direction indicated by the semi-static RRC signaling, i.e., Semi-static U;

[0102] The uplink transmission direction indicated by higher-layer signaling or RRC signaling, i.e., RRC U;

[0103] Dynamic signaling indicates the uplink transmission direction, i.e., Dynamic U.

[0104] As a third optional implementation, the terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including:

[0105] When the transmission direction corresponding to the at least one frequency domain unit includes at least one of the following (wherein, the transmission direction corresponding to the frequency domain unit can be understood as the transmission direction corresponding to all frequency domain units on the N carriers configured for the terminal, or, the transmission direction corresponding to all frequency domain units on the BWP is activated), the terminal determines the transmission direction corresponding to the time unit as a flexible transmission direction.

[0106] The system message indicates a flexible transmission direction, i.e., Semi-static F;

[0107] The semi-static transmission direction indicated by RRC signaling is called semi-static F.

[0108] Dynamic signaling indicates a flexible transmission direction, i.e., Dynamic F.

[0109] As a fourth optional implementation, the terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including:

[0110] If at least one first frequency domain unit exists within the time unit, and the transmission direction corresponding to the second frequency domain unit is a flexible transmission direction, the terminal determines that the transmission direction corresponding to the time unit is a downlink transmission direction.

[0111] The first frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the downlink transmission direction according to the first indication signaling, and the second frequency domain unit refers to the frequency domain unit other than the first frequency domain unit within the time unit.

[0112] Specifically, if at least one RB set among all RB sets(s) on the N carriers configured by the UE or on the activated BWP has a downlink transmission direction in the time unit as determined by the first indication signaling, and the remaining RB sets are F or semi-static F as determined by the first indication signaling, then the transmission direction corresponding to the time unit is determined to be the downlink transmission direction.

[0113] As a fifth optional implementation, the terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including:

[0114] If at least one third frequency domain unit exists within the time unit, and the transmission direction corresponding to the fourth frequency domain unit is a flexible transmission direction, the terminal determines that the transmission direction corresponding to the time unit is the uplink transmission direction.

[0115] The third frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the uplink transmission direction according to the first indication signaling, and the fourth frequency domain unit refers to the frequency domain unit other than the third frequency domain unit within the time unit.

[0116] Specifically, if at least one RB set among all RB sets(s) on the N carriers configured by the UE or on the activated BWP has an uplink transmission direction in the time unit as determined by the first indication signaling, and the remaining RB sets are F or semi-static F as determined by the first indication signaling, then the transmission direction corresponding to the time unit is determined to be the uplink transmission direction.

[0117] As a sixth optional implementation, the terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including:

[0118] If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the first preset combined transmission direction, the terminal determines the transmission direction corresponding to the time unit according to the preset rules.

[0119] The preset rules include at least one of the following:

[0120] First item: Determine the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit with the smallest index within the time unit;

[0121] The second item: Determine the transmission direction corresponding to the time unit based on the transmission direction corresponding to the reference frequency domain unit within the time unit;

[0122] The third item: Based on the relationship between the first value, the second value, and the third value, determine the transmission direction corresponding to the time unit, wherein the first value is the number of frequency domain units in the time unit whose corresponding transmission direction is the uplink transmission direction, the second value is the number of frequency domain units in the time unit whose corresponding transmission direction is the downlink transmission direction, and the third value is the number of frequency domain units in the time unit whose corresponding transmission direction is the flexible transmission direction.

[0123] Fourth item: The default is the preset transmission direction, which includes downlink transmission direction, uplink transmission direction or flexible transmission direction;

[0124] Fifth item: The network configuration is determined to be incorrect;

[0125] Item 6: The terminal autonomously determines the transmission direction corresponding to the time unit;

[0126] Item 7: Determine the transmission direction corresponding to the time unit based on the dynamic signaling on the target carrier;

[0127] Item 8: Determine the transmission direction corresponding to the time unit based on the dynamic signaling on the active bandwidth portion (BWP) of the target carrier;

[0128] Ninth item: Determine the transmission direction corresponding to the time unit based on the target information of the signal to be processed on the target carrier;

[0129] Item 10: Determine the transmission direction corresponding to the time unit based on the target information of the signal to be processed on the BWP activated on the target carrier;

[0130] The target information includes at least one of the following: signal priority, signal content, the channel in which the signal is located, and the signal size.

[0131] The target carrier is any of the carriers within the time unit (e.g., N carriers configured for the terminal) or the first carrier within the time unit.

[0132] Further optionally, the first carrier includes at least one of the following:

[0133] The carrier with the largest or smallest index among all active carriers;

[0134] The reference carrier configured or indicated by the network;

[0135] The carrier with the largest or smallest index in the first carrier set of the time unit and whose transmission direction is uplink or downlink. The first carrier set refers to the set of active carriers in the time unit other than those with flexible transmission direction.

[0136] Further optionally, the first preset combined transmission direction includes at least one of the following:

[0137] Downlink and uplink transmission directions;

[0138] Semi-static indication of downlink transmission direction and dynamic indication of flexible transmission direction;

[0139] Semi-static indication of uplink transmission direction and dynamic indication of flexible transmission direction;

[0140] The transmission direction corresponding to the SSB location in System Message 1 and the flexible transmission direction dynamically indicated;

[0141] The serving cell is configured with the transmission direction corresponding to the SSB location indicated in the public signaling and the flexible transmission direction indicated by dynamic signals;

[0142] The transmission direction and the flexible transmission direction of the control resource set used in the first PDCCH common search space in the main information block.

[0143] In this embodiment of the application, the first preset combined transmission direction can be specifically referred to Table 1.

[0144] Table 1

[0145]

[0146] Regarding the first item above, the configuration and indication of the transmission direction of the carrier X at frequency f1 from time unit S#0 to time unit S#6, for the four RB sets (RB set#0 to RB set#3) within each time unit, are as follows: Figure 3As shown, based on the transmission direction of the frequency domain unit with the smallest index, the transmission direction of time unit S#3 is determined to be D, the transmission direction of time unit S#4 is determined to be F, the transmission direction of time unit S#5 is determined to be F, and the transmission direction of time unit S#6 is determined to be U.

[0147] For the second item above, the reference frequency domain unit can be a frequency domain unit configured and / or indicated by the network, for example, the Kth RB set, where K is the maximum or minimum index in N_bw, or K is the minimum or maximum index or either index of the RB set(s) containing the initial DL / UL BWP;

[0148] Alternatively, the reference frequency domain unit is a frequency domain unit determined in the RB set excluding the transmission direction F within the time unit, for example, the frequency domain unit with the largest or smallest index.

[0149] refer to Figure 3 Assuming the reference frequency domain unit is RB set #2, then the transmission direction of time unit S#3 is determined to be U, the transmission direction of time unit S#4 is determined to be U, the transmission direction of time unit S#5 is determined to be D, and the transmission direction of time unit S#6 is determined to be U. Assuming the reference frequency domain unit is the RB set with the smallest index excluding those with transmission direction F, then the transmission direction of time unit S#3 is determined to be D, the transmission direction of time unit S#4 is determined to be D, the transmission direction of time unit S#5 is determined to be U, and the transmission direction of time unit S#6 is determined to be U.

[0150] Regarding the third item above: Assuming the first value is denoted as T_U, the second value as T_D, and the third value as T_F, then when T_D>T_U and T_D≥T_F, the transmission direction of the time unit is determined to be D; when T_U>T_D and T_U≥T_F, the transmission direction of the time unit is determined to be U; when T_F>T_D and T_F>T_U, the transmission direction of the time unit is determined to be F; when T_D=T_U, it is determined to be an incorrect network configuration or indication, or the terminal autonomously determines the transmission direction.

[0151] refer to Figure 3Assume that the transmission direction of the time unit is determined based on the relationship between the first, second, and third values ​​mentioned above, that is, the transmission direction of the time unit is determined based on the transmission direction corresponding to the largest value. For example, in time unit S#3, T_D = 2, T_F = 1, T_U = 1, so the transmission direction is D; in time unit S#4, T_D = 2, T_F = 1, T_U = 1, so the transmission direction is D; in time unit S#5, T_D = 1, T_F = 1, T_U = 2, so the transmission direction is U; in time unit S#6, T_D = 1, T_F = 0, T_U = 3, so the transmission direction is U.

[0152] For the fourth item above, for combinations 1, 2 and 4 in Table 1 above, the default transmission direction can be U, and for combinations 3 and 4 in Table 1 above, the default direction can be F.

[0153] For items seven and eight above, refer to Figure 3 The transmission direction for time unit S#3 is D as indicated by the terminal-specific DCI or common DCI; the transmission direction for time unit S#4 is D as indicated by the terminal-specific DCI or common DCI; the transmission direction for time unit S#5 is F as indicated by the terminal-specific DCI or common DCI; and the transmission direction for time unit S#6 is U as indicated by the terminal-specific DCI or common DCI. Furthermore, if multiple terminal-specific dynamic signaling or common dynamic signaling exist simultaneously, the transmission direction is determined based on the latest dynamic signaling.

[0154] For items 9 and 10 above, assuming the transmission direction corresponding to the time unit is determined based on signal priority, first determine the target carrier X, and then determine the transmission direction corresponding to the time unit based on the priority of the signals to be processed on the target carrier X. Assume that the downlink data / control information / reference signal of the first priority > the uplink data / control information / reference signal of the second or first priority, or the uplink data / control information / reference signal of the first priority > the downlink data / control information / reference signal of the second or first priority. For example, SSB > PRACH > PDCCH > PUCCH > uplink data containing uplink control information (UCI) > PDSCH > uplink data without uplink control information (UCI). (Reference) Figure 3If the signal to be processed on RB set #2 of time unit S#3 is a configuration grant PUSCH and the signal to be processed on RB set #3 of time unit S#3 is an SSB, then the transmission direction D corresponding to time unit S#3 is determined. If the signal to be processed on RB set #2 of time unit S#4 is a first priority configuration grant PUSCH and the signal to be processed on RB set #3 of time unit S#4 is a first priority PDSCH, then the transmission direction D corresponding to time unit S#4 is determined. If the signal to be processed on RB set #2 of time unit S#5 is a second priority PDSCH and the signal to be processed on RB set #3 of time unit S#5 is a first priority configuration grant PUSCH, then the transmission direction U corresponding to time unit S#5 is determined. If the signal to be processed on RB set #2 of time unit S#6 is a PDSCH and the signal to be processed on RB set #3 of time unit S#6 is a PUCCH, then the transmission direction U corresponding to time unit S#4 is determined.

[0155] Alternatively, based on the target information of the signals to be processed on all carriers, determine the transmission direction corresponding to the time unit, and refer to... Figure 4 The transmission direction corresponding to time unit S#3 is determined based on the priority of all RB set signals to be processed in time unit S#3 on carrier CC#0 and carrier CC#1. Assuming that the transmission priority of the signal to be processed in RB set#3 in time unit S#3 of carrier CC#0 is the highest, the transmission direction corresponding to time unit S#3 is determined to be D. The determination method for other time units is similar and will not be repeated here.

[0156] As a seventh optional implementation, the terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the at least one frequency domain unit, including at least one of the following:

[0157] If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the second preset combined transmission direction, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction.

[0158] If the transmission direction determined by the first instruction signaling for any two frequency domain units within the time unit is the third preset combination transmission direction, and if the time difference between the first symbol and the second symbol is greater than or equal to the terminal processing time, then the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction; otherwise, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction or the network configuration is incorrect.

[0159] If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the third preset combination transmission direction, the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction, wherein the time difference between the first symbol and the second symbol configured by the network is greater than or equal to the terminal processing time.

[0160] The second preset combined transmission direction includes at least one of the following (see Combination 1 and Combination 2 in Table 2 for details):

[0161] Semi-static indication of downlink transmission direction, and dynamic indication of uplink transmission direction or flexible transmission direction;

[0162] The downlink transmission direction indicated by higher-layer signaling or RRC signaling, and the uplink transmission direction or flexible transmission direction indicated by dynamic signaling;

[0163] The third preset combined transmission direction includes at least one of the following (see combinations 3 and 4 in Table 2 for details):

[0164] Semi-static indication of uplink transmission direction, and dynamic indication of downlink transmission direction or flexible transmission direction;

[0165] The uplink transmission direction indicated by higher-layer signaling or RRC signaling, and the downlink transmission direction or flexible transmission direction indicated by dynamic signaling;

[0166] The first symbol is the start symbol of uplink transmission in the first frequency domain unit among any two frequency domain units, and the second symbol is the last symbol of downlink dynamic signaling in the second frequency domain unit among any two frequency domain units. The downlink dynamic signaling is used to indicate downlink transmission or flexible transmission.

[0167] Table 2

[0168] Case RB set#i RB set#j Combination 1 Semi-static D Dynamic U or Dynamic F Combination 2 RRC D Dynamic U or Dynamic F Combination 3 Semi-static U Dynamic D or Dynamic F Combination 4 RRC U Dynamic D or Dynamic F

[0169] like Figure 5 As shown, assuming that the transmission directions corresponding to RB set#0-3 in time unit S#0 are RRC D, Dynamic F, Dynamic F and Semi-static D respectively; and the transmission directions corresponding to RB set#0-3 in time unit S#1 are RRC D, Dynamic U, Dynamic U and Semi-static D respectively, then the transmission direction corresponding to time unit S#0 is determined to be F and the transmission direction corresponding to time unit S#1 is determined to be U.

[0170] As an eighth optional implementation, the terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the at least one frequency domain unit, including:

[0171] If the transmission direction corresponding to any frequency domain unit within the time unit is at least one of the following, the terminal determines that the transmission direction corresponding to the time unit is the downlink transmission direction and performs the corresponding downlink behavior.

[0172] The SSB location indicates the transmission timing and direction corresponding to the SSB's transmission direction;

[0173] The transmission direction corresponding to the transmission time indicated by the SSB Measurement Timing Configuration (SMTC);

[0174] The transmission direction corresponding to the downlink measurement reference signal;

[0175] Effectively track the transmission direction corresponding to the reference signal;

[0176] The transmission direction corresponding to the control resource set of the common search space of the first physical downlink control channel (PDCCH).

[0177] The aforementioned downlink measurement reference signal includes at least one of the following:

[0178] Radio Link Detection (RLM) signal;

[0179] Link Recovery signal;

[0180] Radio Resource Management (RRM) signals;

[0181] L1 layer reference signal received power (L-RSRP).

[0182] The aforementioned effective tracking reference signal can be configured through at least one of system information, higher-level signaling, and dynamic signaling, such as through paging early indication or through paging PDCCH indication.

[0183] In this embodiment of the application, the terminal determines the transmission direction corresponding to the time unit according to the first instruction signaling, such as the uplink transmission direction, the downlink transmission direction, or the flexible transmission direction, so that the terminal without full-duplex capability can determine the transmission direction of the time unit in the flexible / full-duplex system.

[0184] like Figure 6 As shown in the figure, this application embodiment provides a method for determining the transmission direction, including:

[0185] Step 601: The network-side device sends a first indication signaling message, which is used to determine the transmission direction corresponding to the time unit. The transmission direction includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction.

[0186] The flexible transmission direction refers to at least one of the following:

[0187] Uplink transmission direction;

[0188] Downlink transmission direction;

[0189] A flexible direction that neither receives nor sends.

[0190] Optionally, the first indication signaling includes at least one of the following:

[0191] High-level signaling;

[0192] Radio Resource Control (RRC) signaling;

[0193] Dynamic signaling;

[0194] System message.

[0195] Optionally, the system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information.

[0196] Optionally, the RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information.

[0197] The first instruction signaling has been described in detail in the above terminal-side embodiments, and will not be repeated here.

[0198] The method for determining the transmission direction in this application embodiment involves a network-side device sending a first indication signaling message. The first indication signaling message is used to determine the transmission direction corresponding to a time unit, enabling a terminal without full-duplex capability to determine the transmission direction of a time unit in a flexible / full-duplex system.

[0199] It should be noted that the transmission direction determination method provided in this application embodiment can be executed by a transmission direction determination device, or by a control module within that device for executing the transmission direction determination method. This application embodiment uses the execution of the transmission direction determination method by a transmission direction determination device as an example to illustrate the transmission direction determination device provided in this application embodiment.

[0200] like Figure 7 As shown in the figure, this application embodiment also provides a transmission direction determination device 700, including:

[0201] The first determining module 701 is used to determine the transmission direction corresponding to the time unit according to the first indication signaling, wherein the transmission direction includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction;

[0202] The flexible transmission direction can be indicated as at least one of the following:

[0203] Uplink transmission direction;

[0204] Downlink transmission direction;

[0205] A flexible direction that neither receives nor sends.

[0206] Optionally, the apparatus in this application embodiment further includes:

[0207] The first receiving module is used to receive the first instruction signaling.

[0208] Optionally, the first determining module includes:

[0209] The first determining submodule is used to determine the transmission direction corresponding to at least one frequency domain unit within a time unit according to the first indication signaling, wherein the transmission direction corresponding to the frequency domain unit includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction.

[0210] The second determining submodule is used to determine the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit.

[0211] Optionally, the first indication signaling includes at least one of the following:

[0212] High-level signaling;

[0213] Radio Resource Control (RRC) signaling;

[0214] Dynamic signaling;

[0215] System message.

[0216] Optionally, the system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information.

[0217] Optionally, the RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information.

[0218] Optionally, the second determining submodule is used to determine the transmission direction corresponding to the time unit as a downlink transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following:

[0219] The system message semi-statically indicates the downlink transmission direction;

[0220] The downlink transmission direction is semi-statically indicated by RRC signaling;

[0221] Downlink transmissions indicated by higher-layer signaling or RRC signaling;

[0222] The downlink transmission direction indicated by dynamic signaling;

[0223] The transmission direction corresponding to the location of the Synchronization Signal / Physical Broadcast Channel Signal Block (SSB) in System Message 1;

[0224] The transmission direction corresponding to the SSB location indicated in the public signaling of the serving cell configuration;

[0225] The transmission direction corresponding to the control resource set used in the common search space of the first physical downlink control channel (PDCCH) in the main information block.

[0226] Optionally, the second determining submodule is used to determine the transmission direction corresponding to the time unit as the uplink transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following:

[0227] The uplink transmission direction is indicated by a semi-static system message.

[0228] The uplink transmission direction is semi-statically indicated by RRC signaling;

[0229] The uplink transmission direction indicated by higher-layer signaling or RRC signaling;

[0230] The uplink transmission direction indicated by dynamic signaling.

[0231] Optionally, the second determining submodule is used to determine that the transmission direction corresponding to the time unit is a flexible transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following;

[0232] The system message semi-static indication provides flexible transmission direction;

[0233] The semi-static indication of RRC signaling allows for flexible transmission direction;

[0234] Dynamic signaling indicates flexible transmission direction.

[0235] Optionally, the second determining submodule is used to determine the transmission direction corresponding to the time unit as a downlink transmission direction when at least one first frequency domain unit exists within the time unit and the transmission direction corresponding to the second frequency domain unit is a flexible transmission direction.

[0236] The first frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the downlink transmission direction according to the first indication signaling, and the second frequency domain unit refers to the frequency domain unit other than the first frequency domain unit within the time unit.

[0237] Optionally, the second determining submodule is used to determine the transmission direction corresponding to the time unit as the uplink transmission direction when at least one third frequency domain unit exists within the time unit and the transmission direction corresponding to the fourth frequency domain unit is a flexible transmission direction.

[0238] The third frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the uplink transmission direction according to the first indication signaling, and the fourth frequency domain unit refers to the frequency domain unit other than the third frequency domain unit within the time unit.

[0239] Optionally, the second determining submodule is used to determine the transmission direction corresponding to the time unit according to a preset rule when the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is a first preset combined transmission direction.

[0240] The preset rules include at least one of the following:

[0241] The transmission direction corresponding to the time unit is determined based on the transmission direction corresponding to the frequency domain unit with the smallest index within the time unit;

[0242] The transmission direction corresponding to the time unit is determined based on the transmission direction corresponding to the reference frequency domain unit within the time unit;

[0243] Based on the relationship between the first value, the second value, and the third value, the transmission direction corresponding to the time unit is determined, wherein the first value is the number of frequency domain units in the time unit whose corresponding transmission direction is uplink transmission direction, the second value is the number of frequency domain units in the time unit whose corresponding transmission direction is downlink transmission direction, and the third value is the number of frequency domain units in the time unit whose corresponding transmission direction is flexible transmission direction.

[0244] The default is a preset transmission direction, which includes downlink transmission direction, uplink transmission direction or flexible transmission direction;

[0245] The network configuration has been determined to be incorrect.

[0246] The terminal autonomously determines the transmission direction corresponding to the time unit;

[0247] The transmission direction corresponding to the time unit is determined based on the dynamic signaling on the target carrier;

[0248] The transmission direction corresponding to the time unit is determined based on the dynamic signaling on the active bandwidth portion (BWP) of the target carrier.

[0249] The transmission direction corresponding to the time unit is determined based on the target information of the signal to be processed on the target carrier.

[0250] The transmission direction corresponding to the time unit is determined based on the target information of the signal to be processed on the BWP activated on the target carrier.

[0251] The target information includes at least one of the following: signal priority, signal content, the channel in which the signal is located, and the signal size.

[0252] The target carrier is any of the carriers within the time unit or the first carrier within the time unit.

[0253] Optionally, the first carrier includes at least one of the following:

[0254] The carrier with the largest or smallest index among all active carriers;

[0255] The reference carrier configured or indicated by the network;

[0256] The carrier with the largest or smallest index in the first carrier set of the time unit and whose transmission direction is uplink or downlink. The first carrier set refers to the set of active carriers in the time unit other than those with flexible transmission direction.

[0257] Optionally, the first preset combined transmission direction includes at least one of the following:

[0258] Downlink and uplink transmission directions;

[0259] Semi-static indication of downlink transmission direction and dynamic indication of flexible transmission direction;

[0260] Semi-static indication of uplink transmission direction and dynamic indication of flexible transmission direction;

[0261] The transmission direction corresponding to the SSB location in System Message 1 and the flexible transmission direction dynamically indicated;

[0262] The serving cell is configured with the transmission direction corresponding to the SSB location indicated in the public signaling and the flexible transmission direction indicated by dynamic signals;

[0263] The transmission direction and the flexible transmission direction of the control resource set used in the first PDCCH common search space in the main information block.

[0264] Optionally, the second determining submodule is used to perform at least one of the following:

[0265] If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the second preset combined transmission direction, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction.

[0266] If the transmission direction determined by the first instruction signaling for any two frequency domain units within the time unit is the third preset combination transmission direction, and if the time difference between the first symbol and the second symbol is greater than or equal to the terminal processing time, then the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction; otherwise, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction or the network configuration is incorrect.

[0267] If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the third preset combination transmission direction, the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction, wherein the time difference between the first symbol and the second symbol configured by the network is greater than or equal to the terminal processing time.

[0268] The second preset combined transmission direction includes at least one of the following:

[0269] Semi-static indication of downlink transmission direction, and dynamic indication of uplink transmission direction or flexible transmission direction;

[0270] The downlink transmission direction indicated by higher-layer signaling or RRC signaling, and the uplink transmission direction or flexible transmission direction indicated by dynamic signaling;

[0271] The third preset combined transmission direction includes at least one of the following:

[0272] Semi-static indication of uplink transmission direction, and dynamic indication of downlink transmission direction or flexible transmission direction;

[0273] The uplink transmission direction indicated by higher-layer signaling or RRC signaling, and the downlink transmission direction or flexible transmission direction indicated by dynamic signaling;

[0274] The first symbol is the start symbol of the uplink transmission of the first frequency domain unit in any two frequency domain units, and the second symbol is the last symbol of the downlink transmission or flexible transmission of the second frequency domain unit in any two frequency domain units.

[0275] Optionally, the second determining submodule is used to determine that the transmission direction corresponding to any frequency domain unit within the time unit is a downlink transmission direction and perform corresponding downlink actions when the transmission direction corresponding to any frequency domain unit within the time unit is at least one of the following:

[0276] The SSB location indicates the transmission timing and direction corresponding to the SSB's transmission direction;

[0277] The transmission direction corresponding to the transmission time indicated by the SSB timing configuration;

[0278] The transmission direction corresponding to the downlink measurement reference signal;

[0279] Effectively track the transmission direction corresponding to the reference signal;

[0280] The transmission direction corresponding to the control resource set of the common search space of the first physical downlink control channel (PDCCH).

[0281] The apparatus of this application embodiment allows the terminal to determine the transmission direction corresponding to the time unit, such as the uplink transmission direction, downlink transmission direction, or flexible transmission direction, according to the first instruction signaling, thereby enabling a terminal without full-duplex capability to determine the transmission direction of the time unit in a flexible / full-duplex system.

[0282] The transmission direction determination device in this application embodiment can be a device, a device with an operating system, or an electronic device, or it can be a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.

[0283] The apparatus provided in this application embodiment can achieve... Figures 2 to 5 The various processes implemented in the method embodiment achieve the same technical effect, and will not be described again here to avoid repetition.

[0284] Optional, such as Figure 8 As shown, this application embodiment also provides a communication device 800, including a processor 801, a memory 802, and a program or instructions stored in the memory 802 and executable on the processor 801. For example, when the communication device 800 is a terminal, the program or instructions executed by the processor 801 implement the various processes of the above-described method embodiment for determining the transmission direction applied to the terminal, and achieve the same technical effect. When the communication device 800 is a network-side device, the program or instructions executed by the processor 801 implement the various processes of the above-described method embodiment for determining the transmission direction applied to the network-side device, and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0285] This application embodiment also provides a terminal, including a processor and a communication interface. The processor is used to: determine the transmission direction corresponding to the time unit according to a first indication signaling, wherein the transmission direction includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction;

[0286] The flexible transmission direction can be indicated as at least one of the following:

[0287] Uplink transmission direction;

[0288] Downlink transmission direction;

[0289] A flexible direction that neither receives nor sends.

[0290] This terminal embodiment corresponds to the aforementioned terminal-side method embodiment. All implementation processes and methods of the aforementioned method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 9 To realize the hardware structure diagram of a terminal according to an embodiment of this application, the terminal 900 includes, but is not limited to, at least some of the following components: radio frequency unit 901, network module 902, audio output unit 903, input unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, and processor 910.

[0291] Those skilled in the art will understand that the terminal 900 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 910 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 9 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0292] It should be understood that, in this embodiment, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042. The GPU 9041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0293] In this embodiment, the radio frequency unit 901 receives downlink data from the network-side device and processes it for the processor 910; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0294] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 909 may include high-speed random access memory and non-volatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0295] Processor 910 may include one or more processing units; optionally, processor 910 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 910.

[0296] The processor 910 is configured to determine the transmission direction corresponding to the time unit according to the first instruction signaling, wherein the transmission direction includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction.

[0297] The flexible transmission direction can be indicated as at least one of the following:

[0298] Uplink transmission direction;

[0299] Downlink transmission direction;

[0300] A flexible direction that neither receives nor sends.

[0301] Optionally, the processor 910 is further configured to determine, according to the first instruction signaling, the transmission direction corresponding to at least one frequency domain unit within the time unit, wherein the transmission direction corresponding to the frequency domain unit includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction; and to determine the transmission direction corresponding to the time unit according to the transmission direction corresponding to the frequency domain unit.

[0302] Optionally, the first indication signaling includes at least one of the following:

[0303] High-level signaling;

[0304] Radio Resource Control (RRC) signaling;

[0305] Dynamic signaling;

[0306] System message.

[0307] Optionally, the system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information.

[0308] Optionally, the RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information.

[0309] Optionally, the processor 910 is further configured to determine that the transmission direction corresponding to the time unit is a downlink transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following:

[0310] The system message semi-statically indicates the downlink transmission direction;

[0311] The downlink transmission direction is semi-statically indicated by RRC signaling;

[0312] Downlink transmissions indicated by higher-layer signaling or RRC signaling;

[0313] The downlink transmission direction indicated by dynamic signaling;

[0314] The transmission direction corresponding to the location of the Synchronization Signal / Physical Broadcast Channel Signal Block (SSB) in System Message 1;

[0315] The transmission direction corresponding to the SSB location indicated in the public signaling of the serving cell configuration;

[0316] The transmission direction corresponding to the control resource set used in the common search space of the first physical downlink control channel (PDCCH) in the main information block.

[0317] Optionally, the processor 910 is further configured to determine that the transmission direction corresponding to the time unit is an uplink transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following:

[0318] The uplink transmission direction is indicated by a semi-static system message.

[0319] The uplink transmission direction is semi-statically indicated by RRC signaling;

[0320] The uplink transmission direction indicated by higher-layer signaling or RRC signaling;

[0321] The uplink transmission direction indicated by dynamic signaling.

[0322] Optionally, the processor 910 is further configured to determine that the transmission direction corresponding to the time unit is a flexible transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following:

[0323] The system message semi-static indication provides flexible transmission direction;

[0324] The semi-static indication of RRC signaling allows for flexible transmission direction;

[0325] Dynamic signaling indicates flexible transmission direction.

[0326] Optionally, the processor 910 is further configured to, when at least one first frequency domain unit exists within the time unit and the transmission direction corresponding to the second frequency domain unit is a flexible transmission direction, determine that the transmission direction corresponding to the time unit is a downlink transmission direction.

[0327] The first frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the downlink transmission direction according to the first indication signaling, and the second frequency domain unit refers to the frequency domain unit other than the first frequency domain unit within the time unit.

[0328] Optionally, the processor 910 is further configured to, when there is at least one third frequency domain unit within the time unit and the transmission direction corresponding to the fourth frequency domain unit is a flexible transmission direction, determine that the transmission direction corresponding to the time unit is an uplink transmission direction.

[0329] The third frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the uplink transmission direction according to the first indication signaling, and the fourth frequency domain unit refers to the frequency domain unit other than the third frequency domain unit within the time unit.

[0330] Optionally, the processor 910 is further configured to, when the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is a first preset combined transmission direction, determine the transmission direction corresponding to the time unit according to a preset rule.

[0331] The preset rules include at least one of the following:

[0332] The transmission direction corresponding to the time unit is determined based on the transmission direction corresponding to the frequency domain unit with the smallest index within the time unit;

[0333] The transmission direction corresponding to the time unit is determined based on the transmission direction corresponding to the reference frequency domain unit within the time unit;

[0334] Based on the relationship between the first value, the second value, and the third value, the transmission direction corresponding to the time unit is determined, wherein the first value is the number of frequency domain units in the time unit whose corresponding transmission direction is uplink transmission direction, the second value is the number of frequency domain units in the time unit whose corresponding transmission direction is downlink transmission direction, and the third value is the number of frequency domain units in the time unit whose corresponding transmission direction is flexible transmission direction.

[0335] The default is a preset transmission direction, which includes downlink transmission direction, uplink transmission direction or flexible transmission direction;

[0336] The network configuration has been determined to be incorrect.

[0337] The terminal autonomously determines the transmission direction corresponding to the time unit;

[0338] The transmission direction corresponding to the time unit is determined based on the dynamic signaling on the target carrier;

[0339] The transmission direction corresponding to the time unit is determined based on the dynamic signaling on the active bandwidth portion (BWP) of the target carrier.

[0340] The transmission direction corresponding to the time unit is determined based on the target information of the signal to be processed on the target carrier.

[0341] The transmission direction corresponding to the time unit is determined based on the target information of the signal to be processed on the BWP activated on the target carrier.

[0342] The target information includes at least one of the following: signal priority, signal content, the channel in which the signal is located, and the signal size.

[0343] The target carrier is any of the carriers within the time unit or the first carrier within the time unit.

[0344] Optionally, the first carrier includes at least one of the following:

[0345] The carrier with the largest or smallest index among all active carriers;

[0346] The reference carrier configured or indicated by the network;

[0347] The carrier with the largest or smallest index in the first carrier set of the time unit and whose transmission direction is uplink or downlink. The first carrier set refers to the set of active carriers in the time unit other than those with flexible transmission direction.

[0348] Optionally, the first preset combined transmission direction includes at least one of the following:

[0349] Downlink and uplink transmission directions;

[0350] Semi-static indication of downlink transmission direction and dynamic indication of flexible transmission direction;

[0351] Semi-static indication of uplink transmission direction and dynamic indication of flexible transmission direction;

[0352] The transmission direction corresponding to the SSB location in System Message 1 and the flexible transmission direction dynamically indicated;

[0353] The serving cell is configured with the transmission direction corresponding to the SSB location indicated in the public signaling and the flexible transmission direction indicated by dynamic signals;

[0354] The transmission direction and the flexible transmission direction of the control resource set used in the first PDCCH common search space in the main information block.

[0355] Optionally, the processor 910 is further configured to perform at least one of the following:

[0356] If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the second preset combined transmission direction, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction.

[0357] If the transmission direction determined by the first instruction signaling for any two frequency domain units within the time unit is the third preset combination transmission direction, and if the time difference between the first symbol and the second symbol is greater than or equal to the terminal processing time, then the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction; otherwise, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction or the network configuration is incorrect.

[0358] If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the third preset combination transmission direction, the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction, wherein the time difference between the first symbol and the second symbol configured by the network is greater than or equal to the terminal processing time.

[0359] The second preset combined transmission direction includes at least one of the following:

[0360] Semi-static indication of downlink transmission direction, and dynamic indication of uplink transmission direction or flexible transmission direction;

[0361] The downlink transmission direction indicated by higher-layer signaling or RRC signaling, and the uplink transmission direction or flexible transmission direction indicated by dynamic signaling;

[0362] The third preset combined transmission direction includes at least one of the following:

[0363] Semi-static indication of uplink transmission direction, and dynamic indication of downlink transmission direction or flexible transmission direction;

[0364] The uplink transmission direction indicated by higher-layer signaling or RRC signaling, and the downlink transmission direction or flexible transmission direction indicated by dynamic signaling;

[0365] The first symbol is the start symbol of the uplink transmission of the first frequency domain unit in any two frequency domain units, and the second symbol is the last symbol of the downlink transmission or flexible transmission of the second frequency domain unit in any two frequency domain units.

[0366] Optionally, the processor 910 is further configured to, when the transmission direction corresponding to any frequency domain unit within the time unit is at least one of the following, determine that the transmission direction corresponding to the time unit is a downlink transmission direction and perform corresponding downlink actions;

[0367] The SSB location indicates the transmission timing and direction corresponding to the SSB's transmission direction;

[0368] The transmission direction corresponding to the transmission time indicated by the SSB timing configuration;

[0369] The transmission direction corresponding to the downlink measurement reference signal;

[0370] Effectively track the transmission direction corresponding to the reference signal;

[0371] The transmission direction corresponding to the control resource set of the common search space of the first physical downlink control channel (PDCCH).

[0372] The terminal in this application embodiment determines the transmission direction corresponding to the time unit, such as the uplink transmission direction, downlink transmission direction, or flexible transmission direction, according to the first instruction signaling, so that the terminal without full-duplex capability can determine the transmission direction of the time unit in a flexible / full-duplex system.

[0373] like Figure 10 As shown in the figure, this application embodiment also provides a transmission direction determination device 1000, including:

[0374] The first transmission module 1001 is used to send a first indication signaling, the first indication signaling being used to determine the transmission direction corresponding to the time unit, the transmission direction including an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction;

[0375] The flexible transmission direction can be indicated as at least one of the following:

[0376] Uplink transmission direction;

[0377] Downlink transmission direction;

[0378] A flexible direction that neither receives nor sends.

[0379] Optionally, the apparatus in this application embodiment further includes:

[0380] The second determining module is used to determine the first instruction signaling.

[0381] Optionally, the first indication signaling includes at least one of the following:

[0382] High-level signaling;

[0383] Radio Resource Control (RRC) signaling;

[0384] Dynamic signaling;

[0385] System message.

[0386] Optionally, the system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information.

[0387] Optionally, the RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information.

[0388] The apparatus of this application embodiment sends a first indication signaling, which is used to determine the transmission direction corresponding to the time unit, so that a terminal without full-duplex capability can determine the transmission direction of the time unit in a flexible / full-duplex system.

[0389] This application embodiment also provides a network-side device, including a processor and a communication interface. The communication interface is used to send a first indication signaling, which is used to determine the transmission direction corresponding to the time unit. The transmission direction includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction.

[0390] The flexible transmission direction can be indicated as at least one of the following:

[0391] Uplink transmission direction;

[0392] Downlink transmission direction;

[0393] A flexible direction that neither receives nor sends.

[0394] This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiment can be applied to this network-side device embodiment and can achieve the same technical effect.

[0395] Specifically, embodiments of this application also provide a network-side device. For example... Figure 11 As shown, the network device 1100 includes: an antenna 1101, a radio frequency (RF) device 1102, and a baseband device 1103. The antenna 1101 is connected to the RF device 1102. In the uplink direction, the RF device 1102 receives information through the antenna 1101 and transmits the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes the information to be transmitted and transmits it to the RF device 1102. The RF device 1102 processes the received information and transmits it through the antenna 1101.

[0396] The aforementioned frequency band processing device can be located in the baseband device 1103. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1103, which includes a processor 1104 and a memory 1105.

[0397] The baseband device 1103 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 11 As shown, one of the chips, for example, is a processor 1104, which is connected to a memory 1105 to call the program in the memory 1105 and execute the network-side device operations shown in the above method embodiments.

[0398] The baseband device 1103 may also include a network interface 1106 for exchanging information with the radio frequency device 1102, such as a common public radio interface (CPRI).

[0399] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 1105 and executable on processor 1104, wherein processor 1104 calls the instructions or programs in memory 1105 to execute. Figure 10 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0400] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described method for determining the transmission direction and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0401] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0402] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described method embodiment for determining the transmission direction, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0403] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0404] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0405] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0406] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for determining the transmission direction, characterized in that, include: The terminal determines the transmission direction corresponding to the time unit according to the first indication signaling, including: The terminal determines the transmission direction corresponding to at least one frequency domain unit within the time unit according to the first instruction signaling, wherein the transmission direction corresponding to the frequency domain unit includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction; The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, wherein the transmission direction corresponding to the time unit includes an uplink transmission direction, a downlink transmission direction, a flexible transmission direction, or a transmission direction determined according to a preset rule; The flexible transmission direction can be indicated as at least one of the following: Uplink transmission direction; Downlink transmission direction; A flexible direction that neither receives nor sends; The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including: When the transmission direction corresponding to the frequency domain unit includes at least one of the following, the terminal determines that the transmission direction corresponding to the time unit is the downlink transmission direction; The transmission direction corresponding to the location of the Synchronization Signal / Physical Broadcast Channel Signal Block (SSB) in System Message 1; The transmission direction corresponding to the SSB location indicated in the public signaling of the serving cell configuration; The transmission direction corresponding to the control resource set used in the common search space of the first physical downlink control channel (PDCCH) in the main information block.

2. The method according to claim 1, characterized in that, The first instruction signaling includes at least one of the following: High-level signaling; Radio Resource Control (RRC) signaling; Dynamic signaling; System message.

3. The method according to claim 2, characterized in that, The system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information.

4. The method according to claim 2, characterized in that, The RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information.

5. The method according to claim 1, characterized in that, The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including: When the transmission direction corresponding to the frequency domain unit includes at least one of the following, the terminal determines that the transmission direction corresponding to the time unit is the uplink transmission direction; The uplink transmission direction is indicated by a semi-static system message. The uplink transmission direction is semi-statically indicated by RRC signaling; The uplink transmission direction indicated by higher-layer signaling or RRC signaling; The uplink transmission direction indicated by dynamic signaling.

6. The method according to claim 1, characterized in that, The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including: When the transmission direction corresponding to the frequency domain unit includes at least one of the following, the terminal determines that the transmission direction corresponding to the time unit is a flexible transmission direction; The system message semi-static indication provides flexible transmission direction; The semi-static indication of RRC signaling allows for flexible transmission direction; Dynamic signaling indicates flexible transmission direction.

7. The method according to claim 1, characterized in that, The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including: If at least one first frequency domain unit exists within the time unit, and the transmission direction corresponding to the second frequency domain unit is a flexible transmission direction, the terminal determines that the transmission direction corresponding to the time unit is a downlink transmission direction. The first frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the downlink transmission direction according to the first indication signaling, and the second frequency domain unit refers to the frequency domain unit other than the first frequency domain unit within the time unit.

8. The method according to claim 1, characterized in that, The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including: If at least one third frequency domain unit exists within the time unit, and the transmission direction corresponding to the fourth frequency domain unit is a flexible transmission direction, the terminal determines that the transmission direction corresponding to the time unit is the uplink transmission direction. The third frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the uplink transmission direction according to the first indication signaling, and the fourth frequency domain unit refers to the frequency domain unit other than the third frequency domain unit within the time unit.

9. The method according to claim 1, characterized in that, The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit, including: If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the first preset combined transmission direction, the terminal determines the transmission direction corresponding to the time unit according to the preset rules. The preset rules include at least one of the following: The transmission direction corresponding to the time unit is determined based on the transmission direction corresponding to the frequency domain unit with the smallest index within the time unit; The transmission direction corresponding to the time unit is determined based on the transmission direction corresponding to the reference frequency domain unit within the time unit; Based on the relationship between the first value, the second value, and the third value, the transmission direction corresponding to the time unit is determined, wherein the first value is the number of frequency domain units in the time unit whose corresponding transmission direction is uplink transmission direction, the second value is the number of frequency domain units in the time unit whose corresponding transmission direction is downlink transmission direction, and the third value is the number of frequency domain units in the time unit whose corresponding transmission direction is flexible transmission direction. The default is a preset transmission direction, which includes downlink transmission direction, uplink transmission direction or flexible transmission direction; The network configuration has been determined to be incorrect. The terminal autonomously determines the transmission direction corresponding to the time unit; The transmission direction corresponding to the time unit is determined based on the dynamic signaling on the target carrier; The transmission direction corresponding to the time unit is determined based on the dynamic signaling on the active bandwidth portion (BWP) of the target carrier. The transmission direction corresponding to the time unit is determined based on the target information of the signal to be processed on the target carrier. The transmission direction corresponding to the time unit is determined based on the target information of the signal to be processed on the BWP activated on the target carrier. The target information includes at least one of the following: signal priority, signal content, the channel in which the signal is located, and the signal size. The target carrier is any of the carriers within the time unit or the first carrier within the time unit.

10. The method according to claim 9, characterized in that, The first carrier includes at least one of the following: The carrier with the largest or smallest index among all active carriers; The reference carrier configured or indicated by the network; The carrier with the largest or smallest index in the first carrier set of the time unit and whose transmission direction is uplink or downlink. The first carrier set refers to the set of active carriers in the time unit other than those with flexible transmission direction.

11. The method according to claim 9, characterized in that, The first preset combined transmission direction includes at least one of the following: Downlink and uplink transmission directions; Semi-static indication of downlink transmission direction and dynamic indication of flexible transmission direction; Semi-static indication of uplink transmission direction and dynamic indication of flexible transmission direction; The transmission direction corresponding to the SSB location in System Message 1 and the flexible transmission direction dynamically indicated; The serving cell is configured with the transmission direction corresponding to the SSB location indicated in the public signaling and the flexible transmission direction indicated by dynamic signals; The transmission direction and the flexible transmission direction of the control resource set used in the first PDCCH common search space in the main information block.

12. The method according to claim 1, characterized in that, The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the at least one frequency domain unit, including at least one of the following: If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the second preset combined transmission direction, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction. If the transmission direction determined by the first instruction signaling for any two frequency domain units within the time unit is the third preset combination transmission direction, and if the time difference between the first symbol and the second symbol is greater than or equal to the terminal processing time, then the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction; otherwise, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction or the network configuration is incorrect. If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the third preset combination transmission direction, the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction, wherein the time difference between the first symbol and the second symbol configured by the network is greater than or equal to the terminal processing time. The second preset combined transmission direction includes at least one of the following: Semi-static indication of downlink transmission direction, and dynamic indication of uplink transmission direction or flexible transmission direction; The downlink transmission direction indicated by higher-layer signaling or RRC signaling, and the uplink transmission direction or flexible transmission direction indicated by dynamic signaling; The third preset combined transmission direction includes at least one of the following: Semi-static indication of uplink transmission direction, and dynamic indication of downlink transmission direction or flexible transmission direction; The uplink transmission direction indicated by higher-layer signaling or RRC signaling, and the downlink transmission direction or flexible transmission direction indicated by dynamic signaling; The first symbol is the start symbol of the uplink transmission of the first frequency domain unit in any two frequency domain units, and the second symbol is the last symbol of the downlink transmission or flexible transmission of the second frequency domain unit in any two frequency domain units.

13. The method according to claim 1, characterized in that, The terminal determines the transmission direction corresponding to the time unit based on the transmission direction corresponding to the at least one frequency domain unit, including: If the transmission direction corresponding to any frequency domain unit within the time unit is at least one of the following, the terminal determines that the transmission direction corresponding to the time unit is the downlink transmission direction and performs the corresponding downlink behavior. The SSB location indicates the transmission timing and direction corresponding to the SSB's transmission direction; The transmission direction corresponding to the transmission time indicated by the SSB timing configuration; The transmission direction corresponding to the downlink measurement reference signal; Effectively track the transmission direction corresponding to the reference signal; The transmission direction corresponding to the control resource set of the common search space of the first physical downlink control channel (PDCCH).

14. A method for determining the transmission direction, characterized in that, include: The network-side device sends a first indication signaling message, which is used to determine the transmission direction corresponding to at least one frequency domain unit within the time unit. The transmission direction corresponding to the frequency domain unit includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction. The transmission direction corresponding to the frequency domain unit is used to determine the transmission direction corresponding to the time unit. The transmission direction corresponding to the time unit includes an uplink transmission direction, a downlink transmission direction, a flexible transmission direction, or a transmission direction determined according to a preset rule. The flexible transmission direction can be indicated as at least one of the following: Uplink transmission direction; Downlink transmission direction; A flexible direction that neither receives nor sends; Wherein, the transmission direction corresponding to the frequency domain unit is used to determine the transmission direction corresponding to the time unit, including: If the transmission direction corresponding to the frequency domain unit includes at least one of the following, the transmission direction corresponding to the time unit is the downlink transmission direction: The transmission direction corresponding to the location of the Synchronization Signal / Physical Broadcast Channel Signal Block (SSB) in System Message 1; The transmission direction corresponding to the SSB location indicated in the public signaling of the serving cell configuration; The transmission direction corresponding to the control resource set used in the common search space of the first physical downlink control channel (PDCCH) in the main information block.

15. The method according to claim 14, characterized in that, The first instruction signaling includes at least one of the following: High-level signaling; Radio Resource Control (RRC) signaling; Dynamic signaling; System message.

16. The method according to claim 15, characterized in that, The system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information.

17. The method according to claim 15, characterized in that, The RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information.

18. A device for determining the transmission direction, characterized in that, include: The first determining module is used to determine the transmission direction corresponding to the time unit according to the first indication signaling; The first determining module includes: The first determining submodule is used to determine the transmission direction corresponding to at least one frequency domain unit within a time unit according to the first indication signaling, wherein the transmission direction corresponding to the frequency domain unit includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction. The second determining submodule is used to determine the transmission direction corresponding to the time unit based on the transmission direction corresponding to the frequency domain unit; wherein, the transmission direction corresponding to the time unit includes an uplink transmission direction, a downlink transmission direction, a flexible transmission direction, or a transmission direction determined according to a preset rule; The flexible transmission direction can be indicated as at least one of the following: Uplink transmission direction; Downlink transmission direction; A flexible direction that neither receives nor sends; The second determining submodule is used to determine that the transmission direction corresponding to the time unit is a downlink transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following: The transmission direction corresponding to the location of the Synchronization Signal / Physical Broadcast Channel Signal Block (SSB) in System Message 1; The transmission direction corresponding to the SSB location indicated in the public signaling of the serving cell configuration; The transmission direction corresponding to the control resource set used in the common search space of the first physical downlink control channel (PDCCH) in the main information block.

19. The apparatus according to claim 18, characterized in that, The first instruction signaling includes at least one of the following: High-level signaling; Radio Resource Control (RRC) signaling; Dynamic signaling; System message.

20. The apparatus according to claim 19, characterized in that, The system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information.

21. The apparatus according to claim 19, characterized in that, The RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information.

22. The apparatus according to claim 18, characterized in that, The second determining submodule is used to determine that the transmission direction corresponding to the time unit is an uplink transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following: The uplink transmission direction is indicated by a semi-static system message. The uplink transmission direction is semi-statically indicated by RRC signaling; The uplink transmission direction indicated by higher-layer signaling or RRC signaling; The uplink transmission direction indicated by dynamic signaling.

23. The apparatus according to claim 18, characterized in that, The second determining submodule is used to determine that the transmission direction corresponding to the time unit is a flexible transmission direction when the transmission direction corresponding to the frequency domain unit includes at least one of the following: The system message semi-static indication provides flexible transmission direction; The semi-static indication of RRC signaling allows for flexible transmission direction; Dynamic signaling indicates flexible transmission direction.

24. The apparatus according to claim 18, characterized in that, The second determining submodule is used to determine the transmission direction corresponding to the time unit as a downlink transmission direction when at least one first frequency domain unit exists within the time unit and the transmission direction corresponding to the second frequency domain unit is a flexible transmission direction. The first frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the downlink transmission direction according to the first indication signaling, and the second frequency domain unit refers to the frequency domain unit other than the first frequency domain unit within the time unit.

25. The apparatus according to claim 18, characterized in that, The second determining submodule is used to determine the transmission direction corresponding to the time unit as the uplink transmission direction when at least one third frequency domain unit exists within the time unit and the transmission direction corresponding to the fourth frequency domain unit is a flexible transmission direction. The third frequency domain unit refers to the frequency domain unit whose corresponding transmission direction is determined to be the uplink transmission direction according to the first indication signaling, and the fourth frequency domain unit refers to the frequency domain unit other than the third frequency domain unit within the time unit.

26. The apparatus according to claim 18, characterized in that, The second determining submodule is used to determine the transmission direction corresponding to the time unit according to a preset rule when the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is a first preset combined transmission direction. The preset rules include at least one of the following: The transmission direction corresponding to the time unit is determined based on the transmission direction corresponding to the frequency domain unit with the smallest index within the time unit; The transmission direction corresponding to the time unit is determined based on the transmission direction corresponding to the reference frequency domain unit within the time unit; Based on the relationship between the first value, the second value, and the third value, the transmission direction corresponding to the time unit is determined, wherein the first value is the number of frequency domain units in the time unit whose corresponding transmission direction is uplink transmission direction, the second value is the number of frequency domain units in the time unit whose corresponding transmission direction is downlink transmission direction, and the third value is the number of frequency domain units in the time unit whose corresponding transmission direction is flexible transmission direction. The default is a preset transmission direction, which includes downlink transmission direction, uplink transmission direction or flexible transmission direction; The network configuration has been determined to be incorrect. The terminal autonomously determines the transmission direction corresponding to the time unit; The transmission direction corresponding to the time unit is determined based on the dynamic signaling on the target carrier; The transmission direction corresponding to the time unit is determined based on the dynamic signaling on the active bandwidth portion (BWP) of the target carrier. The transmission direction corresponding to the time unit is determined based on the target information of the signal to be processed on the target carrier. The transmission direction corresponding to the time unit is determined based on the target information of the signal to be processed on the BWP activated on the target carrier. The target information includes at least one of the following: signal priority, signal content, the channel in which the signal is located, and the signal size. The target carrier is any of the carriers within the time unit or the first carrier within the time unit.

27. The apparatus according to claim 26, characterized in that, The first carrier includes at least one of the following: The carrier with the largest or smallest index among all active carriers; The reference carrier configured or indicated by the network; The carrier with the largest or smallest index in the first carrier set of the time unit and whose transmission direction is uplink or downlink. The first carrier set refers to the set of active carriers in the time unit other than those with flexible transmission direction.

28. The apparatus according to claim 26, characterized in that, The first preset combined transmission direction includes at least one of the following: Downlink and uplink transmission directions; Semi-static indication of downlink transmission direction and dynamic indication of flexible transmission direction; Semi-static indication of uplink transmission direction and dynamic indication of flexible transmission direction; The transmission direction corresponding to the SSB location in System Message 1 and the flexible transmission direction dynamically indicated; The serving cell is configured with the transmission direction corresponding to the SSB location indicated in the public signaling and the flexible transmission direction indicated by dynamic signals; The transmission direction and the flexible transmission direction of the control resource set used in the first PDCCH common search space in the main information block.

29. The apparatus according to claim 18, characterized in that, The second determining submodule is used to perform at least one of the following: If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the second preset combined transmission direction, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction. If the transmission direction determined by the first instruction signaling for any two frequency domain units within the time unit is the third preset combination transmission direction, and if the time difference between the first symbol and the second symbol is greater than or equal to the terminal processing time, then the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction; otherwise, the transmission direction corresponding to the time unit is determined to be the uplink transmission direction or the network configuration is incorrect. If the transmission direction determined by any two frequency domain units within the time unit according to the first indication signaling is the third preset combination transmission direction, the transmission direction corresponding to the time unit is determined to be the downlink transmission direction or the flexible transmission direction, wherein the time difference between the first symbol and the second symbol configured by the network is greater than or equal to the terminal processing time. The second preset combined transmission direction includes at least one of the following: Semi-static indication of downlink transmission direction, and dynamic indication of uplink transmission direction or flexible transmission direction; The downlink transmission direction indicated by higher-layer signaling or RRC signaling, and the uplink transmission direction or flexible transmission direction indicated by dynamic signaling; The third preset combined transmission direction includes at least one of the following: Semi-static indication of uplink transmission direction, and dynamic indication of downlink transmission direction or flexible transmission direction; The uplink transmission direction indicated by higher-layer signaling or RRC signaling, and the downlink transmission direction or flexible transmission direction indicated by dynamic signaling; The first symbol is the start symbol of the uplink transmission of the first frequency domain unit in any two frequency domain units, and the second symbol is the last symbol of the downlink transmission or flexible transmission of the second frequency domain unit in any two frequency domain units.

30. The apparatus according to claim 18, characterized in that, The second determining submodule is used to determine that the transmission direction corresponding to any frequency domain unit within the time unit is a downlink transmission direction and perform corresponding downlink actions when the transmission direction corresponding to any frequency domain unit within the time unit is at least one of the following: The SSB location indicates the transmission timing and direction corresponding to the SSB's transmission direction; The transmission direction corresponding to the transmission time indicated by the SSB timing configuration; The transmission direction corresponding to the downlink measurement reference signal; Effectively track the transmission direction corresponding to the reference signal; The transmission direction corresponding to the control resource set of the common search space of the first physical downlink control channel (PDCCH).

31. A device for determining the transmission direction, characterized in that, include: The first transmission module is used to send a first indication signaling, which is used to determine the transmission direction corresponding to at least one frequency domain unit within a time unit. The transmission direction corresponding to the frequency domain unit includes an uplink transmission direction, a downlink transmission direction, or a flexible transmission direction. The transmission direction corresponding to the frequency domain unit is used to determine the transmission direction corresponding to the time unit. The transmission direction corresponding to the time unit includes an uplink transmission direction, a downlink transmission direction, a flexible transmission direction, or a transmission direction determined according to a preset rule. The flexible transmission direction can be indicated as at least one of the following: Uplink transmission direction; Downlink transmission direction; A flexible direction that neither receives nor sends; Wherein, the transmission direction corresponding to the frequency domain unit is used to determine the transmission direction corresponding to the time unit, including: If the transmission direction corresponding to the frequency domain unit includes at least one of the following, the transmission direction corresponding to the time unit is the downlink transmission direction: The transmission direction corresponding to the location of the Synchronization Signal / Physical Broadcast Channel Signal Block (SSB) in System Message 1; The transmission direction corresponding to the SSB location indicated in the public signaling of the serving cell configuration; The transmission direction corresponding to the control resource set used in the common search space of the first physical downlink control channel (PDCCH) in the main information block.

32. The apparatus according to claim 31, characterized in that, The first instruction signaling includes at least one of the following: High-level signaling; Radio Resource Control (RRC) signaling; Dynamic signaling; System message.

33. The apparatus according to claim 32, characterized in that, The system message includes at least one of full-duplex uplink / downlink common configuration information and flexible-duplex uplink / downlink common configuration information.

34. The apparatus according to claim 32, characterized in that, The RRC signaling includes at least one of full-duplex uplink / downlink specific configuration information and flexible-duplex uplink / downlink specific configuration information.

35. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method for determining the transmission direction as described in any one of claims 1 to 13.

36. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method for determining the transmission direction as described in any one of claims 14 to 17.

37. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method for determining the transmission direction as described in any one of claims 1 to 13, or implement the steps of the method for determining the transmission direction as described in any one of claims 14 to 17.

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