Data Transmission Method, Apparatus, and Electronic Device

Abstract

The present invention provides a data transmission method, an apparatus and an electronic device. According to an aspect of the present invention, the method includes the steps of: for a target slot, determining a subband full duplex SBFD time-frequency resource in the target slot and a downlink time-frequency resource for transmitting downlink data in the target slot, the target slot being an uplink UL slot, a downlink DL slot or a special S slot, the SBFD time-frequency resource occupying at least one symbol of the target slot in the time domain and occupying at least one physical resource block for each symbol in the frequency domain; determining a data transmission operation corresponding to the downlink time-frequency resource based on a symbol type corresponding to the SBFD time-frequency resource and an overlap result between the SBFD time-frequency resource and the downlink time-frequency resource; and performing the determined data transmission operation in the target slot.

Description

Technical Field

[0001] The present invention relates to the field of communications, and particularly to a data transmission method, apparatus, and electronic device.

Background Art

[0002] Conventional Time-Division Duplex (TDD) communication systems usually operate in a Half-Duplex (HD) mode. The TDD frame structure can be divided into a Down Link (DL) slot, a Special (S) slot, and an Up Link (UL) slot, and the S slot can be used for UL, DL, or a Guard Period (GP).

[0003] In Full-Duplex (FD) communication, transmission and reception can be performed simultaneously, that is, data transmission on the uplink and downlink can be performed simultaneously. In the current 5G-Adv system, full-duplex communication is realized in the form of Sub-Band Full Duplex (SBFD). Specifically, in the time-frequency resources of 5G-Adv, some SBFD time-frequency resources are set, so that at the same time, in the SBFD time-frequency resources, data with different directions from the data in other time-frequency resources can be transmitted.

Summary of the Invention

[0004] A first aspect of the present invention is a data transmission method applied to a base station. For one target slot, a step of determining a sub-band full-duplex (SBFD) time-frequency resource in the target slot and a downlink time-frequency resource for transmitting downlink data in the target slot, where the target slot is an uplink (UL) slot, a downlink (DL) slot, or a special S slot, and the SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and at least one physical resource block for each symbol in the frequency domain; a step of determining a data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource; and a step of executing the determined data transmission operation in the target slot. A data transmission method is provided that includes these steps.

[0005] A second aspect of the present invention is a data transmission method applied to a UE, comprising: identifying, from resource transmission information transmitted from a base station, setting information for sub-band full-duplex (SBFD) time-frequency resources; when the identification result indicates successful identification of the setting information, determining, based on the setting information, an SBFD time-frequency resource in a target slot, an uplink time-frequency resource for transmitting uplink data in the target slot, and a downlink time-frequency resource for receiving downlink data in the target slot, wherein the target slot is an uplink (UL) slot, a downlink (DL) slot, or a special (S) slot, and the SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and at least one physical resource block for each symbol in the frequency domain; determining a data transmission operation corresponding to the downlink time-frequency resource based on an overlapping result between the uplink time-frequency resource and the downlink time-frequency resource in the SBFD time-frequency resource; and performing, in the target slot, the determined data transmission operation.

[0006] A third aspect of the present invention is a data transmission device applied to a base station, comprising: a first determination module for determining, for one target slot, sub-band full-duplex (SBFD) time-frequency resources in the target slot and downlink time-frequency resources for transmitting downlink data in the target slot, wherein the target slot is an uplink (UL) slot, a downlink (DL) slot, or a special (S) slot, and the SBFD time-frequency resources occupy at least one symbol of the target slot in the time domain and at least one physical resource block for each symbol in the frequency domain; a second determination module for determining a data transmission operation corresponding to the downlink time-frequency resources based on a symbol type corresponding to the SBFD time-frequency resources and an overlapping result between the SBFD time-frequency resources and the downlink time-frequency resources; and an execution module for executing the determined data transmission operation in the target slot.

[0007] A fourth aspect of the present invention is a data transmission apparatus applied to a user equipment UE, comprising: an identification module for identifying, from resource transmission information transmitted from a base station, setting information for sub-band full-duplex (SBFD) time-frequency resources; a first determination module for determining, when the identification result is successful in identifying the setting information, an SBFD time-frequency resource in a target slot and a downlink time-frequency resource for receiving downlink data in the target slot based on the setting information, wherein the target slot is an uplink (UL) slot, a downlink (DL) slot, or a special S slot, and the SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and occupies at least one physical resource block for each symbol in the frequency domain; a second determination module for determining a data transmission operation corresponding to the downlink time-frequency resource based on an overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource; and an execution module for executing the determined data transmission operation in the target slot.

[0008] A fifth aspect of the present invention is an electronic device including at least one processor and a machine-readable storage medium storing machine-executable instructions, wherein, by reading the machine-executable instructions, the at least one processor is caused to execute the data transmission method according to any one of the above aspects.

[0009] According to the above technical solution, it is possible to determine the scheduling mechanism of the downlink SSB, PDCCH, and reference signal in the SBFD time-frequency resource. For UEs with different capabilities, the mechanisms for transmitting the downlink SSB, PDCCH, and reference signal in the SBFD time-frequency resource are different. According to the technical solution of the present invention, it is possible to clarify the transmission mechanisms of the base station and the UE in the SBFD time-frequency resource when the downlink SSB, PDCCH, and reference signal collide with other resources, avoid the ambiguity of the operations of the base station and the UE in this situation, and ensure that the base station and the UE can normally transmit the SSB, PDCCH, and downlink reference signal in full-duplex mode.

Brief Description of the Drawings

[0010]

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Embodiments for Carrying Out the Invention

[0011] The terms used in the embodiments of the present invention are only for explaining specific embodiments and do not limit the present invention. The singular forms "a kind", "the foregoing" and "the said" used in the present invention and the claims are also intended to include the plural forms unless the context clearly indicates otherwise. Also, it should be understood that the term "and / or" used in the present invention means any or all possible combinations of one or more of the related listed items.

[0012] In the embodiments of the present invention, terms such as first, second, third, etc. may be used to explain various information, but it should be understood that these information are not limited to these terms. These terms are only used to distinguish the same type of information. For example, without departing from the scope of the present invention, the first information may be called the second information, and similarly, the second information may be called the first information. Depending on the context, the word "when... case" may be interpreted as "when...", "at... time" or "in response to the decision".

[0013] Hereinafter, with reference to the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0014] The conventional TDD frame structure can be divided into UL, DL and S slots in units of slots. Here, the symbols of the UL slot are set to UL symbols used for uplink data transmission, the symbols of the DL slot are set to DL symbols used for downlink data transmission, the symbols of the S slot are set to UL, DL and F (Flexible) symbols, and the F symbol can be used for UL, DL or GP.

[0015] In a conventional TDD communication system, in the case of transmission of some downlink channel transmissions such as SSB (Synchronization Signal Block), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Share Channel), CSI-RS (Channel State Information Reference Signal), and PRS (Positioning Reference Signal), it can only be performed on DL symbols or F symbols in the corresponding DL slot and S slot, and UL symbols in the UL slot and S slot cannot perform such downlink data transmission. When setting a frame structure mainly for the uplink, the transmission opportunity for downlink data is greatly restricted.

[0016] In the current 5G-Adv system, by setting some SBFD time-frequency resources within the time-frequency resources, it is required that at the same time, data with different directions from the data in other time-frequency resources can be transmitted in the SBFD time-frequency resources. For example, it is required that downlink data such as SSB, PDCCH, CSI-RS / PRS can be transmitted in the SBFD time-frequency resources set within the uplink slot. However, since the SBFD time-frequency resources bring additional elements that affect communication quality such as self-interference (SI) and adjacent cell interference, when performing downlink transmission using the SBFD time-frequency resources, it is necessary to consider the impact of this downlink transmission on the current 5G uplink channel and signal transmission, and determine the scheduling and transmission strategies for the downlink channel and signals in the SBFD time-frequency resources. However, in the current 5G-Adv protocol, no effective proposals have been made regarding issues such as downlink / uplink transmission in the SBFD time-frequency resources and whether such transmission conflicts with the current resource scheduling strategy. For more information about SBFD, reference can be made to R1-2203157 and R1-2203204 in the 3GPP (registered trademark) TSG-RAN WG1 meeting materials.

[0017] Based on this, the present invention provides a technology for performing downlink channel transmission in the SBFD time-frequency resource. In this specification, the technical solution of the present invention will be mainly described in relation to the transmission examples of SSB, PDCCH, CSI-RS, and PRS in the SBFD time-frequency resource. In the technical solution of the present invention, processing is performed based on the overlapping situation between the time-frequency resources actually used by the downlink channel and signals and the uplink time-frequency resources, and the capabilities of the UE (whether it supports FD), and an appropriate transmission strategy is selected to perform data transmission in the SBFD time-frequency resource. In the technical solution of the present invention, the transmission strategies for the downlink common channel and reference signals in the SBFD time-frequency resources of the base station and the UE are clarified, and downlink transmission based on SBFD can be realized in the current 5G-Adv system, thereby improving the overall performance of the 5G communication system. Further, the technical solution of the present invention further considers the compatibility problem of UEs that do not support SBFD, and provides corresponding processing strategies for setting the SBFD time-frequency resources for such UEs.

[0018] Hereinafter, the technical solution of the present invention will be described with reference to examples.

[0019] An example of the present invention provides a data transmission method applicable to a base station. FIG. 1 shows a schematic diagram of the flow of the data transmission method. The method may include the following steps 101 to 103.

[0020] In step 101, for one target slot, determine the sub-band full-duplex SBFD time-frequency resource in the target slot and the downlink time-frequency resource for transmitting downlink data in the target slot. The target slot is an uplink UL slot, a downlink DL slot, or a special S slot. The SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and at least one physical resource block for each symbol in the frequency domain.

[0021] In step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, determine the data transmission operation corresponding to the downlink time-frequency resource.

[0022] In step 103, execute the determined data transmission operation in the target slot.

[0023] The "target slot" in step 101 may be understood as the currently focused slot, or may be any slot in which the SBFD time-frequency resource is set. Since the SBFD time-frequency resource may be set in a UL slot, a DL slot, or an S slot, the target slot may be a UL slot, a DL slot, or an S slot. Taking the UL slot as an example, the SBFD time-frequency resource may be set in all UL symbols or some UL symbols of the UL slot. In the frequency domain, for each UL symbol, the SBFD time-frequency resource may occupy at least one physical resource block (PRB) in the symbol. The physical resource block may be defined within a bandwidth part (BWP), which is the resource used for actual transmission. Within each BWP, the physical resource blocks are numbered according to a predefined index rule. The cases of DL slots and S slots are similar to that of UL slots.

[0024] The "downlink time-frequency resource" corresponding to the target slot is the time-frequency resource used to transmit downlink data in the current 5G communication mechanism. For example, it is the time-frequency resource corresponding to SSB, PDCCH, CSI-RS, PRS, etc. The downlink time-frequency resource may overlap with the SBFD time-frequency resource, including cases of partial overlap and complete overlap. In this specification, the terms "partially overlap" and "completely overlap" appear several times. Unless otherwise specified, the "partially overlap" may refer to a partial overlap in the time domain, a partial overlap in the frequency domain, or a partial overlap in the time domain. "Completely overlap" means that the downlink time-frequency resource is contained within the SBFD time-frequency resource. In step 102, based on the symbol type (UL symbol, DL symbol, or F symbol) corresponding to the SBFD time-frequency resource and the overlap result between the SBFD time-frequency resource and the downlink time-frequency resource, it is possible to determine whether data transmission operations corresponding to the downlink time-frequency resource, such as the transmission of downlink channels / signals, can be performed.

[0025] The 5G-Adv full-duplex communication system is an addition to the current 5G communication system with the use of SBFD time-frequency resources. Except for the part related to the setting of SBFD time-frequency resources, there are no changes in strategies such as resource scheduling and channel transmission. The current 5G-Adv protocol does not consider the problem that the use of SBFD time-frequency resources may conflict with the original strategies. However, the data transmission method in this example can provide a clear data transmission strategy for the 5G-Adv full-duplex communication system based on SBFD to achieve full-duplex communication based on SBFD between the base station and the UE by considering the overlap situation between the time-frequency resources actually used by the downlink channels and signals and the set SBFD time-frequency resources.

[0026] In this example, the data transmission method will be described from the perspective of the base station side. On the UE side, based on the configuration information of the SBFD time-frequency resource transmitted from the base station, the SBFD time-frequency resource in the target slot is determined, and whether to receive downlink data may be determined based on the overlapping situation between the SBFD time-frequency resource and the downlink time-frequency resource.

[0027] The SBFD time-frequency resource may be semi-statically configured by high-level RRC (Radio Resource Control) signaling, or may be dynamically configured by DCI (Downlink Control Information).

[0028] For a UE without SBFD capability, when the SBFD time-frequency resource is semi-statically configured, the UE ignores all SBFD time-frequency resource configurations. When the SBFD time-frequency resource is dynamically configured, the UE does not expect the base station to configure the SBFD time-frequency resource for itself, and if it is configured, the UE ignores the configuration. Here, "ignores" means that the UE cannot identify the SBFD time-frequency resource configuration.

[0029] UEs with SBFD capability can be divided into two types. One is a half-duplex UE, that is, it can transmit or receive in the SBFD time-frequency resource, but at the same time, only one of transmission and reception can be performed, and it is called an HD UE. The other is a full-duplex UE, that is, at the same time, transmission and reception can be performed simultaneously in the SBFD time-frequency resource, and it is called an FD UE. When the UE enables the half-duplex mode, it can operate as a half-duplex UE, and when the full-duplex mode is enabled, it can operate as a full-duplex UE. In the technical solution of the present invention, UEs with SBFD capability, including HD UEs and FD UEs, are mainly considered.

[0030] The data transmission method according to an example of the present invention has been described above with reference to FIG. 1. Hereinafter, each step of the data transmission method will be further described based on a specific example of downlink channel transmission.

[0031] Transmission of SSB (Synchronization Signal Block) in the SBFD time-frequency resource.

[0032] In an example of the present invention, the downlink data in step 101 includes the data carried by the SSB, the downlink time-frequency resource is the SSB time-frequency resource corresponding to the SSB, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is a DL symbol or a flexible F symbol, and the overlapping result is that the downlink time-frequency resource is located within the SBFD time-frequency resource or partially overlaps with the SBFD time-frequency resource, the step of determining that the data transmission operation corresponding to the downlink time-frequency resource is to transmit the downlink data based on the SSB time-frequency resource.

[0033] In the current 5G communication system, since the SSB is used for synchronization between the base station and the UE and transmission of the MIB (Master Information Block) containing important information of the cell, accurate reception of the SSB by the UE is the basis for realizing normal communication.

[0034] As described above, the SBFD time-frequency resource can flexibly schedule uplink and downlink transmissions, and can be dynamically set or semi-statically set. When the SBFD time-frequency resource is dynamically set, since the base station clearly knows the position of the SSB, in order to ensure that the UE can normally receive the SSB and complete the reception of synchronization and important cell information, the base station needs to avoid dynamically setting the SBFD time-frequency resource within the time-frequency resource occupied by the SSB. From the perspective of the UE, the UE also does not expect the base station to dynamically set the SBFD time-frequency resource in the time-frequency resource overlapping with the SSB.

[0035] In the SBFD time-frequency resource semi-statically set, any downlink transmission including the transmission of the SSB can be scheduled. When the SBFD time-frequency resource does not completely overlap with the SSB time-frequency resource, the base station can transmit the SSB only in the non-uplink symbol, and the UE also receives the SSB in the corresponding non-uplink symbol. When the SSB time-frequency resource overlaps with the SBFD time-frequency resource semi-statically configured, that is, when it partially or completely overlaps (the SSB time-frequency resource is located within the SBFD time-frequency resource), if the SBFD time-frequency resource is set in the downlink symbol, the base station needs to normally transmit the SSB, and any UE supporting SBFD needs to normally receive the SSB.

[0036] Regarding the SBFD time-frequency resource set in the F (Flexible) symbol or UL symbol, it is necessary to consider based on the overlapping situation between the SBFD time-frequency resource and the SSB.

[0037] In an example of the present invention, the downlink data in step 101 includes the data carried by the SSB, the downlink time-frequency resource is the SSB time-frequency resource corresponding to the SSB, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is a flexible F symbol, and when the overlapping result is that the downlink time-frequency resource is located within the SBFD time-frequency resource or partially overlaps with the SBFD time-frequency resource, the step of determining that the data transmission operation corresponding to the downlink time-frequency resource is to transmit the downlink data based on the SSB time-frequency resource.

[0038] Figure 2 is a schematic diagram showing the overlap between the SBFD time-frequency resource and the SSB. As shown in Figure 2, the semi-statically configured SBFD time-frequency resource completely overlaps with the SSB time-frequency resource, that is, the SSB time-frequency resource is located within the SBFD time-frequency resource. F represents a flexible slot, that is, it can be used for uplink or downlink. DL represents a downlink slot, and UL represents an uplink slot. Also, a detailed setting example of the SSB time-frequency resource and the SBFD time-frequency resource in slot 2 is shown in the figure, and the shaded part represents that the SSB time-frequency resource and the SBFD time-frequency resource completely overlap. When the SSB time-frequency resource is located within the completely semi-statically configured SBFD time-frequency resource, the base station normally transmits the SSB in the SSB time-frequency resource in the flexible symbol. For the HD UE and the FD UE, the SSB is also received in the SSB time-frequency resource in the flexible symbol.

[0039] FIG. 3 is a schematic diagram showing the overlap between the SBFD time-frequency resource and the SSB. As shown in FIG. 3, the SSB time-frequency resource partially overlaps with the SBFD time-frequency resource that is set semi-statically. Here, in slots 0 to 3, the SBFD time-frequency resource partially overlaps with the SSB time-frequency resource, and the details are shown in FIG. 3.

[0040] In the flexible symbol, as in slot 1 of FIG. 3, the base station normally transmits the SSB in the time-frequency resource (SSB time-frequency resource) occupied by the SSB. For the HD UE and the FD UE as well, they receive the SSB in the time-frequency resource occupied by the SSB in the flexible symbol.

[0041] In an example of the present invention, the downlink data in step 101 includes the data carried by the SSB, and the downlink time-frequency resource is the SSB time-frequency resource corresponding to the SSB. In step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlap result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlap result is that the SSB time-frequency resource is located within the SBFD time-frequency resource, the data transmission operation corresponding to the downlink time-frequency resource is to transmit the downlink data based on the SSB time-frequency resource.

[0042] In an example of the present invention, the downlink data in step 101 includes data carried by the SSB, the downlink time-frequency resource is the SSB time-frequency resource corresponding to the SSB, and based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the SSB time-frequency resource partially overlaps with the SBFD time-frequency resource, determining that the data transmission operation corresponding to the downlink time-frequency resource is to prohibit transmitting the downlink data.

[0043] As shown in FIG. 2, when the time-frequency resource occupied by the SSB is located within the SBFD time-frequency resource that is completely semi-statically configured, the base station normally transmits the SSB in the time-frequency resource occupied by the SSB in the uplink symbol. For the HD UE and the FD UE, the SSB is also received in the time-frequency resource occupied by the SSB in the uplink symbol.

[0044] As shown in Fig. 3, the SSB time-frequency resource partially overlaps with the SBFD time-frequency resource. When the SBFD time-frequency resource is set within the uplink symbol, since the SSB time-frequency resource collides with the time-frequency resource for transmitting uplink data, the base station should not transmit the SSB, and neither the HD UE nor the FD UE receives the SSB. To avoid this situation, when setting the SSB, the base station needs to set all SSBs in the downlink symbol or the flexible symbol. If it is necessary to set the SSB in the uplink symbol, it is necessary to additionally set the SBFD time-frequency resource and set the SSB within the SBFD time-frequency resource. If the SBFD time-frequency resource is not sufficient for transmitting the SSB, the SSB cannot be set within the SBFD time-frequency resource in the uplink symbol.

[0045] Transmission of PDCCH (Physical Downlink Control Channel) in the SBFD time-frequency resource.

[0046] In an example of the present invention, the downlink data in step 101 includes the data carried by the PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is a DL symbol, and when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, the step of determining that the data transmission operation corresponding to the downlink time-frequency resource is to transmit the downlink data based on the CORESET.

[0047] In the current 5G communication system, the PDCCH is used to transmit control information such as system information, user group information, and user scheduling information. The UE can further receive system information, group information, user scheduling information, etc. based on the control information only when it first receives the control information. The time-frequency resources occupied by the PDCCH are called the Control Resource SET (CORESET), which is semi-statically configured by RRC signaling. Depending on different functions, the CORESET is divided into a common CORESET and a UE-specific CORESET. The common CORESET is further divided into CORESET 0 and other common CORESETS. The former is used to transmit control information related to the SIB1 (system information block type 1) message, and the latter is mainly used to transmit control information such as paging messages, other system messages, and random access. The UE-specific CORESET is used to transmit user scheduling information. Among all the CORESETS, the importance of CORESET 0 is higher than that of other CORESETS.

[0048] First, consider the dynamically configured SBFD time-frequency resources. For each CORESET, the base station and the UE can identify the time-frequency resources occupied thereby. When dynamically configuring the SBFD time-frequency resources, the SBFD time-frequency resources are set by DCI, and the DCI is transmitted using the time-frequency resources of the CORESET in the PDCCH. Therefore, when dynamically configuring the SBFD time-frequency resources, the base station needs to avoid setting the SBFD time-frequency resources within the time-frequency resources occupied by the CORESET. From the perspective of the UE, the UE also does not expect the base station to dynamically configure the SBFD time-frequency resources in the time-frequency resources overlapping with the CORESET.

[0049] In the SBFD time-frequency resource set semi-statically, any downlink transmission including the transmission of PDCCH can be scheduled. When the semi-statically configured SBFD time-frequency resource does not completely overlap with the CORESET, the base station can transmit the PDCCH only in the CORESET in the non-uplink symbol, and the UE also performs blind detection on the PDCCH based on the configuration in the CORESET in the corresponding non-uplink symbol.

[0050] When semi-statically configuring the SBFD time-frequency resource by high-level RRC signaling, the SBFD time-frequency resource may overlap with the CORESET. When transmitting the PDCCH in the CORESET that overlaps with the semi-statically configured SBFD time-frequency resource, if the CORESET is located in the downlink symbol, the base station needs to normally transmit the PDCCH in the CORESET, and all UEs supporting SBFD perform blind detection on the PDCCH based on the configuration in the CORESET in the corresponding downlink symbol.

[0051] In an example of the present invention, the downlink data in step 101 includes the data carried by the PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is an F symbol, the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and when the CORESET is a common CORESET, the data transmission operation corresponding to the downlink time-frequency resource is determined to be to transmit the downlink data based on the CORESET.

[0052] In an example of the present invention, the downlink data in step 101 includes the data carried by the PDCCH, and the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH. In step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: when the symbol corresponding to the SBFD time-frequency resource is an F symbol, the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and when the CORESET is a UE-specific CORESET, if the CORESET overlaps with the random access channel occasion RO in the target slot in the time domain, if the UE to receive the downlink data is in the full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data based on the CORESET, or if the CORESET does not overlap with the RO in the time domain, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data based on the CORESET. In this specification, RO should be understood to include RO itself and the previous N gap gap symbols, which is understood from the time domain because RO is set within the symbol in the time domain. N gap 's value may be determined by the configuration information transmitted from the base station, and the value of N gap may be 0. Whether the CORESET overlaps or does not overlap with the RO in the time domain means whether the time-frequency resources occupied by the CORESET and the RO overlap or do not overlap in the time domain.

[0053] In an example of the present invention, the downlink data in step 101 includes the data carried by the PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is that when the symbol corresponding to the SBFD time-frequency resource is an F symbol, the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and when the CORESET is a UE-specific CORESET and the CORESET overlaps with the random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in the half-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining to prohibit transmitting the downlink data using the CORESET.

[0054] When transmitting the PDCCH in the common CORESET that overlaps (partially or completely) with the semi-statically configured SBFD time-frequency resource in the F symbol, the base station transmits the PDCCH in the common CORESET. Accordingly, the UE supporting SBFD performs blind detection on the PDCCH based on the configuration in the common CORESET in the corresponding flexible symbol.

[0055] When transmitting PDCCH in a UE-specific CORESET that overlaps (partially or completely) with the semi-statically configured SBFD time-frequency resource in the F symbol, as shown in slot 1 of FIG. 4, if the UE-specific CORESET overlaps with the current PRACH (physical random access channel) transmission opportunity (RACH Occasion: RO) in the time domain resource, i.e., in the symbol, for an HD UE, the base station does not transmit PDCCH in the UE-specific CORESET, and the HD UE also does not perform blind detection on the PDCCH in the UE-specific CORESET. For an FD UE, the base station can transmit PDCCH in the UE-specific CORESET, and the FD UE also performs blind detection on the PDCCH in the UE-specific CORESET. If the UE-specific CORESET does not overlap with the RO in the time domain, for all UEs that support SBFD, the base station transmits PDCCH in the UE-specific CORESET, and the UE also performs blind detection on the PDCCH in the UE-specific CORESET.

[0056] Regarding whether the UE is an HD UE or an FD UE, in the process of the UE accessing the network, the base station transmits a message to the UE to query the UE's capabilities, and the UE that receives the message reports its own capabilities to the base station. In this way, the base station can know whether the UE is a UE with SBFD capabilities and also know whether the UE is an FD UE or an HD UE.

[0057] In an example of the present invention, the downlink data in step 101 includes the data carried by the PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH. In step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlapping result is that the CORESET is located within the SBFD time-frequency resource, and when the CORESET overlaps with the random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in the full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining that it is to transmit the downlink data based on the CORESET.

[0058] In an example of the present invention, the downlink data in step 101 includes the data carried by the PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH. In step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlapping result is that the CORESET is located within the SBFD time-frequency resource, and when the CORESET overlaps with the random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in the half-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining that it is to prohibit transmitting the downlink data by using the CORESET.

[0059] Fig. 5 is a schematic diagram showing the overlap between the SBFD time-frequency resource and the CORESET. As shown in Fig. 5, the CORESET time-frequency resource completely overlaps with the SBFD time-frequency resource set semi-statically. Here, in the first two symbols of slot 1 and slot 3, the CORESET is completely included in the SBFD time-frequency resource. As shown in slot 3 of Fig. 5, when the CORESET overlaps with the RO and time-domain resource, i.e., the symbol, for the HD UE, the base station does not transmit the PDCCH in the CORESET, and the HD UE also does not perform blind detection on the PDCCH in the CORESET. For the FD UE, the base station can transmit the PDCCH in the CORESET, and the FD UE also performs blind detection on the PDCCH in the CORESET.

[0060] In an example of the present invention, the downlink data in step 101 includes the data carried by the PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlapping result is that the CORESET is located within the SBFD time-frequency resource, if the CORESET does not overlap with the random access channel opportunity RO in the target slot in the time domain, if the CORESET is a common CORESET, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data based on the CORESET; or, if the CORESET does not overlap with the RO in the time domain, if the CORESET is a UE-specific CORESET and the UE to receive the downlink data is in the full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data based on the CORESET.

[0061] In an example of the present invention, the downlink data in step 101 includes the data carried by the PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH, and based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlapping result is that the CORESET is located within the SBFD time-frequency resource, if the CORESET does not overlap with the RO in the time domain and the CORESET is a UE-specific CORESET and the UE to receive the downlink data is in the half-duplex TDD mode, the step of determining that the data transmission operation corresponding to the downlink time-frequency resource is to prohibit transmitting the downlink data using the CORESET is included.

[0062] When the CORESET does not overlap with the RO in the time domain, if the CORESET is a common CORESET, the base station normally transmits the PDCCH in the time-frequency resource occupied by the CORESET. The UE supporting SBFD performs blind detection of the PDCCH in the CORESET time-frequency resource in the symbol occupied by the CORESET. If the CORESET is a UE-specific CORESET, the base station normally transmits the PDCCH to the FD UE and does not transmit the PDCCH to the HD UE in the time-frequency resource occupied by the CORESET. Accordingly, the FD UE performs blind detection of the PDCCH in the CORESET time-frequency resource in the symbol occupied by the CORESET, and the HD UE does not perform blind detection of the PDCCH in the CORESET time-frequency resource.

[0063] In an example of the present invention, the downlink data in step 101 includes the data carried by the physical downlink control channel PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource, the data transmission operation corresponding to the downlink time-frequency resource is determined to be the step of prohibiting the transmission of the downlink data.

[0064] In an example of the present invention, the downlink data in step 101 includes the data carried by the physical downlink control channel PDCCH, the downlink time-frequency resource is the control resource set CORESET corresponding to the PDCCH, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource, when the UE to receive the downlink data is in the full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining to transmit the downlink data based on the first target resource, the first target resource is the time-frequency resource overlapping between the CORESET and the SBFD time-frequency resource, and the size of the first target resource is not less than the size of the downlink data.

[0065] In an example of the present invention, the downlink data in step 101 includes data carried by a physical downlink control channel PDCCH, the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH, and in step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: when the symbol corresponding to the SBFD time-frequency resource is a UL symbol, the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource, and when the UE to receive the downlink data is in full-duplex TDD mode, if the first target resource overlaps with the random access channel opportunity RO in the target slot, and when the size of the second target resource is equal to or greater than the size of the downlink data, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining to transmit the downlink data based on the second target resource. The first target resource is the time-frequency resource overlapping between the CORESET and the SBFD time-frequency resource, and the second target resource is the time-frequency resource in the first target resource that does not overlap with the RO.

[0066] FIG. 6 is a schematic diagram showing the overlap between the SBFD time-frequency resource and the CORESET. As shown in FIG. 6, the semi-statically configured SBFD time-frequency resource partially overlaps with the CORESET, where the SBFD time-frequency resource partially overlaps with the CORESET in the first two symbols (symbol 0, symbol 1) of slot 1 and slot 3.

[0067] In the uplink symbol, since the time-frequency resources occupied by the CORESET only partially occupy the SBFD time-frequency resources, the CORESET will overlap with other uplink time-frequency resources. In this case, there are two PDCCH transmission methods.

[0068] Method 1: The base station does not transmit the PDCCH. In this method, since there is an overlap between the CORESET and the uplink time-frequency resources, to avoid collisions, the base station does not transmit the PDCCH in the time-frequency resources of the CORESET, and all types of UEs (FD or HD) do not perform blind detection of the PDCCH in the CORESET that overlaps with the uplink time-frequency resources.

[0069] Method 2: The base station transmits the PDCCH in the CORESET time-frequency resources that do not overlap with the uplink time-frequency resources, and this method is only applicable to FD UEs. When the CORESET overlaps with the RO, the base station determines the size of the CORESET resource in the SBFD time-frequency resources that does not overlap with the RO based on the setting of the CORESET and the position of the RO in the SBFD time-frequency resources. If the size of the CORESET resource in this part is sufficient for transmitting the PDCCH, the base station transmits the PDCCH in the CORESET resource in this part. Otherwise, the base station does not transmit the PDCCH in the CORESET resource in the SBFD time-frequency resources. For FD UEs, blind detection of the PDCCH is performed in the CORESET resource in the SBFD time-frequency resources that does not overlap with the RO, such as PRB2 - 96 in symbols 0 and 1 of slot 3 in Figure 6.

[0070] When the CORESET does not overlap with the RO, the base station determines the size of the CORESET resource of the part located within the SBFD time-frequency resource based on the setting of the CORESET in the SBFD time-frequency resource. If the CORESET resource of this part is sufficient for transmitting the PDCCH, the base station transmits the PDCCH in the CORESET resource of this part. Otherwise, the base station does not transmit the PDCCH in the CORESET resource in the SBFD time-frequency resource. For the FD UE, blind detection of the PDCCH is performed in the CORESET resource of the part located within the SBFD time-frequency resource.

[0071] Transmission of the reference signal in the SBFD time-frequency resource

[0072] In an example of the present invention, the downlink data in step 101 includes the downlink channel state information reference signal CSI-RS or the downlink positioning reference signal PRS. The downlink time-frequency resource is the reference signal time-frequency resource corresponding to the CSI-RS or PRS. In step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource includes, when the symbol corresponding to the SBFD time-frequency resource is a DL symbol, determining that the data transmission operation corresponding to the downlink time-frequency resource is to transmit the downlink data based on the reference signal time-frequency resource.

[0073] In an example of the present invention, the downlink data in step 101 includes a downlink channel state information reference signal CSI-RS or a downlink positioning reference signal PRS, the downlink time-frequency resource is a reference signal time-frequency resource corresponding to the CSI-RS or PRS, and the method prohibits setting the CSI-RS or the PRS within the SBFD time-frequency resource when the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the UE to receive the downlink data is in a half-duplex TDD mode, or further includes a step of setting the CSI-RS or the PRS within the SBFD time-frequency resource when the UE is in a full-duplex TDD mode.

[0074] CSI-RS is mainly used for beam management, phase tracking, CSI reporting, interference measurement, etc., and PRS is used for positioning measurement and calculation, etc. These two reference signals can also be set and transmitted in the SBFD time-frequency resource.

[0075] For an HD UE, since only one of transmission and reception can be performed at the same time, it is necessary to clarify how the HD UE processes CSI-RS / PRS in the SBFD time-frequency resource. When the SBFD time-frequency resource is set to a DL symbol, the base station and the HD UE normally transmit and receive CSI-RS / PRS. When the SBFD time-frequency resource is set to a UL symbol, the base station should avoid setting CSI-RS / PRS within the SBFD time-frequency resource, and the HD UE does not expect the base station to set CSI-RS / PRS in the SBFD time-frequency resource. If it is set, the HD UE does not receive CSI-RS / PRS in the resource where the CSI-RS / PRS is set.

[0076] For an FD UE, transmission and reception can be performed at the same time. When the SBFD time-frequency resource is set to a downlink symbol, the base station and the FD UE can normally transmit and receive CSI-RS / PRS. When the SBFD time-frequency resource is set to an uplink symbol, the base station should avoid setting CSI-RS / PRS other than the SBFD time-frequency resource, and the FD UE should not expect the base station to set CSI-RS / PRS other than the SBFD time-frequency resource. When CSI-RS / PRS is set other than the SBFD time-frequency resource, the FD UE does not receive CSI-RS / PRS in the resource where the CSI-RS / PRS is set.

[0077] In an example of the present invention, the downlink data in step 101 includes a downlink channel state information reference signal CSI-RS or a downlink positioning reference signal PRS, and the downlink time-frequency resource is the reference signal time-frequency resource corresponding to the CSI-RS or PRS. In step 102, based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: When the symbol corresponding to the SBFD time-frequency resource is an F symbol, in the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink shared channel PUSCH of the dynamic grant DG (in this specification, unless otherwise specified, "overlap" means partial or complete overlap), if the UE to receive the downlink data is in the full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data based on the reference signal time-frequency resource. Or, in the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the repetition of the physical uplink shared channel PUSCH of the dynamic grant DG, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data based on the reference signal time-frequency resource. Or, in the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the PUSCH of the configured grant CG or the time-frequency resource corresponding to the repetition of the PUSCH of the CG, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data based on the reference signal time-frequency resource. Or, in the SBFD time-frequency resource, when the reference signal time-frequency resource is a sounding reference signal SRS (Sounding referenceWhen overlapping with the time-frequency resource corresponding to the signal), the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining that the downlink data is to be transmitted based on the reference signal time-frequency resource.

[0078] In an example of the present invention, the downlink data in step 101 includes a downlink channel state information reference signal CSI-RS or a downlink positioning reference signal PRS, the downlink time-frequency resource is the reference signal time-frequency resource corresponding to the CSI-RS or PRS, and based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: when the symbol corresponding to the SBFD time-frequency resource is an F symbol, in the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink shared channel PUSCH of the dynamic grant DG, if the UE to receive the downlink data is in the half-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be prohibiting the transmission of the downlink data, or in the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink control channel PUCCH, the data transmission operation corresponding to the downlink time-frequency resource is determined to be prohibiting the transmission of the downlink data, or in the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the random access channel opportunity RO in the target slot, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining to prohibit the transmission of the downlink data.

[0079] When the SBFD time-frequency resource is set to a flexible symbol and a certain CSI-RS / PRS overlaps with the uplink signal or uplink channel in the SBFD time-frequency resource, the transmission mechanism of CSI-RS / PRS in the SBFD time-frequency resource is shown in Table 1. The detailed transmission mechanism will be described below. Table 1 shows the transmission mechanism when CSI-RS / PRS overlaps with the uplink channel or signal in the SBFD time-frequency resource in the flexible symbol.

Table 1

[0080] As shown in Table 1, for HD UE, when CSI-RS / PRS overlaps with the PUSCH of the Dynamic Grant (DG), CSI-RS / PRS is not transmitted; when it overlaps with the repeated transmission of the PUSCH of the Dynamic Grant (DG), CSI-RS / PRS is transmitted; when it overlaps with the PUSCH of the Configured Grant (CG, i.e., semi-static grant) or the repeated transmission of the PUSCH, CSI-RS / PRS is transmitted; when it overlaps with the PUCCH, CSI-RS / PRS is not transmitted; when it overlaps with the SRS, CSI-RS / PRS is transmitted; when it overlaps with the RO, CSI-RS / PRS is not transmitted. Table 2 shows the transmission mechanism when CSI-RS / PRS overlaps with the uplink channel or signal in the SBFD time-frequency resource in the flexible symbol.

Table 2

[0081] As shown in Table 2, for the FD UE, when CSI-RS / PRS overlaps with the PUSCH of the Dynamic Grant (DG), CSI-RS / PRS is transmitted; when it overlaps with the repeated transmission of the PUSCH of the Dynamic Grant (DG), CSI-RS / PRS is transmitted; when it overlaps with the PUSCH of the Configured Grant (CG, i.e., semi-static grant) or the repeated transmission of the PUSCH, CSI-RS / PRS is transmitted; when it overlaps with the PUCCH, CSI-RS / PRS is not transmitted; when it overlaps with the SRS, CSI-RS / PRS is transmitted; when it overlaps with the RO, CSI-RS / PRS is not transmitted.

[0082] Based on the above specific examples of downlink channel transmission, each step of the data transmission method applied to the base station has been described in detail. However, the above examples are not mutually exclusive, and depending on the actual application, any two or more of these examples may be combined to form a new example. For example, for one target slot, there may be both SSB transmission and PDCCH transmission. In this case, the examples of SSB and PDCCH may be combined, but this is only an example and is not limited thereto.

[0083] According to the above technical solution, the scheduling mechanism of downlink SSB, PDCCH, and reference signals in the SBFD time-frequency resource is determined. For UEs with different capabilities, the mechanisms for transmitting downlink SSB, PDCCH, and reference signals in the SBFD time-frequency resource are different. According to the technical solution of the present invention, the transmission mechanisms of the base station and the UE in the SBFD time-frequency resource when downlink SSB, PDCCH, and reference signals collide with other resources can be clarified, avoiding the ambiguity of the operations of the base station and the UE in this situation, and ensuring that the base station and the UE can normally transmit SSB, PDCCH, and downlink reference signals in full-duplex mode.

[0084] Corresponding to the data transmission method applied to the above base station, an example of the present invention provides a data transmission method applied to a user equipment UE. The method includes: identifying, from resource transmission information transmitted from a base station, setting information for sub-band full-duplex SBFD time-frequency resources; when the identification result indicates successful identification of the setting information, determining, based on the setting information, SBFD time-frequency resources in a target slot and downlink time-frequency resources for receiving downlink data in the target slot, where the target slot is an uplink UL slot, a downlink DL slot, or a special S slot, and the SBFD time-frequency resources occupy at least one symbol of the target slot in the time domain and at least one physical resource block for each symbol in the frequency domain; determining a data transmission operation corresponding to the downlink time-frequency resources based on an overlapping result between the SBFD time-frequency resources and the downlink time-frequency resources; and executing, in the target slot, the determined data transmission operation.

[0085] In one example, the resource transmission information includes system signaling or downlink control information DCI.

[0086] In one example, when the UE does not support SBFD, the method further includes that the identification result indicates failure in identifying the setting information.

[0087] Based on the same concept as the above data transmission method, an example of the present invention provides a data transmission apparatus applied to a base station. As shown in FIG. 7, the apparatus includes For one target slot, a first determination module for determining the sub-band full-duplex SBFD time-frequency resources in the target slot and the downlink time-frequency resources for transmitting downlink data in the target slot, where the target slot is an uplink UL slot, a downlink DL slot, or a special S slot, and the SBFD time-frequency resources occupy at least one symbol of the target slot in the time domain and at least one physical resource block for each symbol in the frequency domain, the first determination module 701; A second determination module 702 for determining the data transmission operation corresponding to the downlink time-frequency resources based on the symbol type corresponding to the SBFD time-frequency resources and the overlapping result between the SBFD time-frequency resources and the downlink time-frequency resources; An execution module 703 for executing the determined data transmission operation in the target slot may be included.

[0088] In one example, the downlink data includes data carried by a synchronization signal block SSB, and the downlink time-frequency resources are the SSB time-frequency resources corresponding to the SSB; When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resources based on the symbol type corresponding to the SBFD time-frequency resources and the overlapping result between the SBFD time-frequency resources and the downlink time-frequency resources, specifically, When the symbol corresponding to the SBFD time-frequency resources is a DL symbol or a flexible F symbol, and the overlapping result is that the downlink time-frequency resources are located within the SBFD time-frequency resources or partially overlap with the SBFD time-frequency resources, the data transmission operation corresponding to the downlink time-frequency resources is used to determine that the downlink data is to be transmitted based on the SSB time-frequency resources.

[0089] In one example, the downlink data includes data carried by a synchronization signal block SSB, and the downlink time-frequency resource is an SSB time-frequency resource corresponding to the SSB. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the SSB time-frequency resource is located within the SBFD time-frequency resource, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that the downlink data is to be transmitted based on the SSB time-frequency resource.

[0090] In one example, the downlink data includes data carried by a synchronization signal block SSB, and the downlink time-frequency resource is an SSB time-frequency resource corresponding to the SSB. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the SSB time-frequency resource partially overlaps with the SBFD time-frequency resource, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that transmitting the downlink data is prohibited.

[0091] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a DL symbol, and when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that the downlink data is to be transmitted based on the CORESET.

[0092] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is an F symbol, and when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and the CORESET is a common CORESET, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that the downlink data is to be transmitted based on the CORESET.

[0093] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines a data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is an F symbol, the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and when the CORESET is a UE-specific CORESET, When the CORESET overlaps with a random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data based on the CORESET, or When the CORESET does not overlap with the RO in the time domain, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that the downlink data is to be transmitted based on the CORESET.

[0094] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines a data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is an F symbol, the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and when the CORESET is a UE-specific CORESET, When the CORESET overlaps with the random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in the half-duplex TDD mode, it is used to determine that the data transmission operation corresponding to the downlink time-frequency resource prohibits transmitting the downlink data using the CORESET.

[0095] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the CORESET is located within the SBFD time-frequency resource, When the CORESET overlaps with the random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in the full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that the downlink data is transmitted based on the CORESET.

[0096] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the CORESET is located within the SBFD time-frequency resource, When the CORESET overlaps with the random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in the half-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that it is prohibited to transmit the downlink data using the CORESET.

[0097] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the CORESET is located within the SBFD time-frequency resource, When the CORESET does not overlap with the random access channel opportunity RO in the target slot in terms of time domain, if the CORESET is a common CORESET, the data transmission operation corresponding to the downlink time-frequency resource is determined to be to transmit the downlink data based on the CORESET, or When the CORESET does not overlap with the RO in terms of time domain, if the CORESET is a UE-specific CORESET and the UE to receive the downlink data is in full-duplex TDD mode, it is used to determine that the data transmission operation corresponding to the downlink time-frequency resource is to transmit the downlink data based on the CORESET.

[0098] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the CORESET is located within the SBFD time-frequency resource. When the CORESET does not overlap with the RO in terms of time domain, if the CORESET is a UE-specific CORESET and the UE to receive the downlink data is in half-duplex TDD mode, it is used to determine that the data transmission operation corresponding to the downlink time-frequency resource is to prohibit transmitting the downlink data using the CORESET.

[0099] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource, it is used to determine that the data transmission operation corresponding to the downlink time-frequency resource is to prohibit transmitting the downlink data.

[0100] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource, When the UE to receive downlink data is in full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that it is to transmit the downlink data based on the first target resource. The first target resource is an overlapping time-frequency resource between the CORESET and the SBFD time-frequency resource, and the size of the first target resource is not less than the size of the downlink data.

[0101] In one example, the downlink data includes data carried by a physical downlink control channel PDCCH, and the downlink time-frequency resource is a control resource set CORESET corresponding to the PDCCH. When the second determination module determines a data transmission operation corresponding to the downlink time-frequency resource based on a symbol type corresponding to the SBFD time-frequency resource and an overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol, the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource, and when the UE to receive the downlink data is in a full-duplex TDD mode, When the first target resource overlaps with a random access channel opportunity RO in the target slot, and when the size of the second target resource is not less than the size of the downlink data, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that the downlink data is to be transmitted based on the second target resource. The first target resource is an overlapping time-frequency resource between the CORESET and the SBFD time-frequency resource, and the second target resource is a time-frequency resource in the first target resource that does not overlap with the RO.

[0102] In one example, the downlink data includes a downlink channel state information reference signal CSI-RS or a downlink positioning reference signal PRS, and the downlink time-frequency resource is a reference signal time-frequency resource corresponding to the CSI-RS or PRS. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is a DL symbol, the data transmission operation corresponding to the downlink time-frequency resource is used to determine that the downlink data is to be transmitted based on the reference signal time-frequency resource.

[0103] In one example, the downlink data includes a downlink channel state information reference signal CSI-RS or a downlink positioning reference signal PRS, the downlink time-frequency resource is the reference signal time-frequency resource corresponding to the CSI-RS or PRS, and the apparatus When the symbol corresponding to the SBFD time-frequency resource is a UL symbol, When the UE to receive the downlink data is in the half-duplex TDD mode, setting the CSI-RS or the PRS within the SBFD time-frequency resource is prohibited, or When the UE is in the full-duplex TDD mode, it further includes a setting module for setting the CSI-RS or the PRS within the SBFD time-frequency resource.

[0104] In one example, the downlink data includes a downlink channel state information reference signal CSI-RS or a downlink positioning reference signal PRS, the downlink time-frequency resource is the reference signal time-frequency resource corresponding to the CSI-RS or PRS, When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is an F symbol, In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink shared channel PUSCH of the dynamic grant DG, if the UE to receive the downlink data is in the full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be to transmit the downlink data based on the reference signal time-frequency resource, or In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the repeated transmission of the physical uplink shared channel PUSCH of the dynamic grant DG, the data transmission operation corresponding to the downlink time-frequency resource is determined to be to transmit the downlink data based on the reference signal time-frequency resource, or In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the PUSCH of the configured grant CG or the time-frequency resource corresponding to the repeated transmission of the PUSCH of the CG, the data transmission operation corresponding to the downlink time-frequency resource is determined to be to transmit the downlink data based on the reference signal time-frequency resource, or In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the sounding reference signal SRS, the data transmission operation corresponding to the downlink time-frequency resource is used to determine to transmit the downlink data based on the reference signal time-frequency resource.

[0105] In one example, the downlink data includes the downlink channel state information reference signal CSI-RS or the downlink positioning reference signal PRS, and the downlink time-frequency resource is the reference signal time-frequency resource corresponding to the CSI-RS or PRS. When the second determination module determines the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, specifically, When the symbol corresponding to the SBFD time-frequency resource is an F symbol, In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink shared channel PUSCH of the dynamic grant DG, if the UE to receive the downlink data is in the half-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be prohibiting the transmission of the downlink data, or, In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink control channel PUCCH, the data transmission operation corresponding to the downlink time-frequency resource is determined to be prohibiting the transmission of the downlink data, or, In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the random access channel opportunity RO in the target slot, it is used to determine that the data transmission operation corresponding to the downlink time-frequency resource is to prohibit the transmission of the downlink data.

[0106] An example of the present invention is a data transmission device applied to a user equipment UE, an identification module for identifying the configuration information for the sub-band full-duplex SBFD time-frequency resource from the resource transmission information transmitted from the base station, and When the identification result indicates successful identification of the configuration information, a first determination module for determining the SBFD time-frequency resource in the target slot and the downlink time-frequency resource for receiving downlink data in the target slot based on the configuration information, where the target slot is an uplink UL slot, a downlink DL slot, or a special S slot, and the SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and at least one physical resource block for each symbol in the frequency domain, the first determination module; A second determination module for determining a data transmission operation corresponding to the downlink time-frequency resource based on an overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource; An execution module for executing the determined data transmission operation in the target slot, and providing a data transmission device including the execution module.

[0107] In an example of the present invention, the resource transmission information includes system signaling or downlink control information DCI.

[0108] In an example of the present invention, when the UE is a UE that does not support SBFD, the identification result indicates that the identification of the configuration information has failed.

[0109] Based on the same concept as the above method, an example of the present invention provides an electronic device (e.g., the base station or user equipment in the above example). As shown in FIG. 8, the electronic device includes a processor 801 and a machine-readable storage medium 802. The machine-readable storage medium 802 stores machine-executable instructions executable by the processor. The processor 801 executes the machine-executable instructions and is used to implement the data transmission method disclosed in the above example of the present invention.

[0110] Based on the same idea as the above method, an example of the present invention further provides a machine-readable storage medium storing several computer instructions. When the computer instructions are executed by a processor, the data transmission method disclosed in the above example of the present invention can be implemented.

[0111] Here, the above machine-readable storage medium may be an electronic, magnetic, optical, or other physical storage device capable of storing or memorizing information such as executable instructions and data. For example, the machine-readable storage medium may be RAM (Random Access Memory), volatile memory, non-volatile memory, flash memory, a storage drive (e.g., a hard disk drive), a solid-state drive, any type of storage disk (e.g., an optical disk, a DVD, etc.), or a similar storage medium, or a combination thereof.

[0112] The devices, apparatuses, or modules described in the above embodiments may specifically be realized by a computer chip, an entity, or a product having some functions. A typical realization device is a computer, and the specific form of the computer may be a personal computer, a laptop computer, a mobile phone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email transceiver device, a game console, a tablet, a wearable device, or any combination of several of these devices.

[0113] For the convenience of description, when the above apparatuses are described, they are divided into various units according to their functions and described respectively. Of course, when implementing the present invention, it is also possible to realize the functions of each unit with the same or multiple software and / or hardware.

[0114] As will be appreciated by those skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an embodiment consisting of only hardware, an embodiment consisting of only software, or an embodiment combining software and hardware. Further, embodiments of the present invention may adopt the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, magnetic disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0115] The present invention will be described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, may be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing device create means for implementing the functions specified in one or more flows of the flowchart and / or one or more blocks of the block diagram.

[0116] Alternatively, these computer program instructions may be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means for implementing the functions specified in one or more flows of the flowchart and / or one or more blocks of the block diagram.

[0117] These computer program instructions may be loaded onto a computer or other programmable data processing device, thereby causing a series of operational steps to be executed on the computer or other programmable device, generating a process implemented by the computer, and thereby providing steps for realizing the functions specified within one or more flows of the flowchart and / or one or more blocks of the block diagram by instructions executed on the computer or other programmable device.

[0118] The above are only examples of the present invention and are not used to limit the present invention. Various modifications and changes can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A data transmission method applied to a base station, comprising: For one target slot, determining a sub-band full-duplex SBFD time-frequency resource in the target slot and a downlink time-frequency resource for transmitting downlink data in the target slot, where the target slot is an uplink UL slot, a downlink DL slot, or a special S slot, and the SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and occupies at least one physical resource block for each symbol in the frequency domain; Determining a data transmission operation corresponding to the downlink time-frequency resource based on a symbol type corresponding to the SBFD time-frequency resource and an overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource; Executing, in the target slot, the determined data transmission operation. A data transmission method characterized by the above.

2. The downlink time-frequency resource is an SSB time-frequency resource corresponding to a synchronization signal block SSB. The step of determining a data transmission operation corresponding to the downlink time-frequency resource based on a symbol type corresponding to the SBFD time-frequency resource and an overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource includes: When the symbol corresponding to the SBFD time-frequency resource is a DL symbol or a flexible F symbol, and when the overlapping result is that the downlink time-frequency resource is located within the SBFD time-frequency resource or partially overlaps with the SBFD time-frequency resource, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting downlink data carried by the SSB based on the SSB time-frequency resource; or When the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlapping result is that the SSB time-frequency resource is located within the SBFD time-frequency resource, the downlink time-frequency resource corresponding data transmission operation determines to transmit the downlink data carried by the SSB based on the SSB time-frequency resource, or, When the symbol corresponding to the SBFD time-frequency resource is a UL symbol, and when the overlapping result is that the SSB time-frequency resource partially overlaps with the SBFD time-frequency resource, the downlink time-frequency resource corresponding data transmission operation includes the step of determining to prohibit transmitting the downlink data carried by the SSB. The method according to claim 1, characterized in that.

3. The downlink time-frequency resource is a control resource set CORESET corresponding to a physical downlink control channel PDCCH, Based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is When the symbol corresponding to the SBFD time-frequency resource is a DL symbol, and when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, the downlink time-frequency resource corresponding data transmission operation includes the step of determining to transmit the downlink data carried by the PDCCH based on the CORESET. The method according to claim 1, characterized in that.

4. The downlink time-frequency resource is a control resource set CORESET corresponding to a physical downlink control channel PDCCH, Based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is When the symbol corresponding to the SBFD time-frequency resource is an F symbol, when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and the CORESET is a common CORESET, the downlink data transmission operation corresponding to the downlink time-frequency resource is determined to transmit the downlink data carried by the PDCCH based on the CORESET, or when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and the CORESET is a UE-specific CORESET, when the CORESET overlaps with the random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in the full-duplex TDD mode, the downlink data transmission operation corresponding to the downlink time-frequency resource is determined to transmit the downlink data carried by the PDCCH based on the CORESET, or when the CORESET does not overlap with the RO in the time domain, the downlink data transmission operation corresponding to the downlink time-frequency resource is determined to transmit the downlink data carried by the PDCCH based on the CORESET, or when the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource or is located within the SBFD time-frequency resource, and the CORESET is a UE-specific CORESET, when the CORESET overlaps with the random access channel opportunity RO in the target slot in the time domain, if the UE to receive the downlink data is in the half-duplex TDD mode, the step of determining that the downlink data transmission operation corresponding to the downlink time-frequency resource prohibits transmitting the downlink data carried by the PDCCH using the CORESET is included, The method according to claim 1, characterized in that.

5. The downlink time-frequency resource is a control resource set CORESET corresponding to a physical downlink control channel PDCCH, The step of determining a data transmission operation corresponding to the downlink time-frequency resource based on a symbol type corresponding to the SBFD time-frequency resource and an overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource is as follows: When a symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the CORESET is located within the SBFD time-frequency resource, when the CORESET overlaps with a random access channel opportunity RO in the target slot in the time domain, if the UE for receiving downlink data is in full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting downlink data carried by the PDCCH based on the CORESET; or when the CORESET overlaps with a random access channel opportunity RO in the target slot in the time domain, if the UE for receiving downlink data is in half-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be prohibiting the transmission of downlink data carried by the PDCCH using the CORESET; or when the CORESET does not overlap with a random access channel opportunity RO in the target slot in the time domain, if the CORESET is a common CORESET, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting downlink data carried by the PDCCH based on the CORESET; or When the CORESET does not overlap with the RO in the time domain, if the CORESET is a UE-specific CORESET and the UE to receive the downlink data is in full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data carried by the PDCCH based on the CORESET. Or, when the CORESET does not overlap with the random access channel opportunity RO in the target slot in the time domain, if the CORESET is a UE-specific CORESET and the UE to receive the downlink data is in half-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining to prohibit transmitting the downlink data carried by the PDCCH using the CORESET. The method according to claim 1, characterized in that.

6. The downlink time-frequency resource is a control resource set CORESET corresponding to a physical downlink control channel PDCCH. Based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows. When the symbol corresponding to the SBFD time-frequency resource is a UL symbol and the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource. The data transmission operation corresponding to the downlink time-frequency resource is determined to prohibit transmitting the downlink data carried by the PDCCH. Or, when the UE to receive the downlink data is in full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining to transmit the downlink data carried by the PDCCH based on the first target resource. The first target resource is the time-frequency resource overlapping between the CORESET and the SBFD time-frequency resource, and the size of the first target resource is not less than the size of the downlink data carried by the PDCCH. The method according to claim 1, characterized in that...

7. The downlink time-frequency resource is a control resource set CORESET corresponding to a physical downlink control channel PDCCH, Based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: When the symbol corresponding to the SBFD time-frequency resource is a UL symbol, the overlapping result is that the CORESET partially overlaps with the SBFD time-frequency resource, and when the UE to receive the downlink data is in full-duplex TDD mode, When the first target resource overlaps with the random access channel opportunity RO in the target slot, and when the size of the second target resource is equal to or greater than the size of the downlink data carried by the PDCCH, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining that, based on the second target resource, the downlink data carried by the PDCCH is to be transmitted. The first target resource is the time-frequency resource that overlaps between the CORESET and the SBFD time-frequency resource, and the second target resource is the time-frequency resource that does not overlap with the RO among the first target resources. The method according to claim 1, characterized in that...

8. The downlink time-frequency resource is a reference signal time-frequency resource corresponding to a downlink channel state information reference signal CSI-RS or a reference signal time-frequency resource corresponding to a downlink positioning reference signal PRS, Based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is as follows: When the symbol corresponding to the SBFD time-frequency resource is a DL symbol, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining that, based on the reference signal time-frequency resource, the downlink data carried by the CSI-RS or PRS is to be transmitted. When the symbol corresponding to the SBFD time-frequency resource is a UL symbol, when the UE to receive the downlink data is in the half-duplex TDD mode, setting the CSI-RS or the PRS within the SBFD time-frequency resource is prohibited, or when the UE is in the full-duplex TDD mode, the method includes the step of setting the CSI-RS or the PRS within the SBFD time-frequency resource. The method according to claim 1, characterized in that.

9. The downlink time-frequency resource is a reference signal time-frequency resource corresponding to a downlink channel state information reference signal CSI-RS or a reference signal time-frequency resource corresponding to a downlink positioning reference signal PRS, Based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource, the step of determining the data transmission operation corresponding to the downlink time-frequency resource is when the symbol corresponding to the SBFD time-frequency resource is an F symbol, in the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink shared channel PUSCH of the dynamic grant DG, if the UE to receive the downlink data is in the full-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data carried by the CSI-RS or PRS based on the reference signal time-frequency resource, or in the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the repeated transmission of the physical uplink shared channel PUSCH of the dynamic grant DG, the data transmission operation corresponding to the downlink time-frequency resource is determined to be transmitting the downlink data carried by the CSI-RS or PRS based on the reference signal time-frequency resource, or In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink shared channel PUSCH of the configured grant CG or the time-frequency resource corresponding to the repeated transmission of the PUSCH of the CG, the data transmission operation corresponding to the downlink time-frequency resource is determined to be to transmit the downlink data carried by the CSI-RS or PRS based on the reference signal time-frequency resource, or In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the sounding reference signal SRS, the data transmission operation corresponding to the downlink time-frequency resource is determined to be to transmit the downlink data carried by the CSI-RS or PRS based on the reference signal time-frequency resource, or In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink shared channel PUSCH of the dynamic grant DG, if the UE to receive the downlink data is in the half-duplex TDD mode, the data transmission operation corresponding to the downlink time-frequency resource is determined to prohibit transmitting the downlink data carried by the CSI-RS or PRS, or In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the physical uplink control channel PUCCH, the data transmission operation corresponding to the downlink time-frequency resource is determined to prohibit transmitting the downlink data carried by the CSI-RS or PRS, or In the SBFD time-frequency resource, when the reference signal time-frequency resource overlaps with the time-frequency resource corresponding to the random access channel opportunity RO in the target slot, the data transmission operation corresponding to the downlink time-frequency resource includes the step of determining to prohibit transmitting the downlink data carried by the CSI-RS or PRS. The method according to claim 1, characterized in that.

10. Further comprising the step of adding the configuration information for the SBFD time-frequency resource to system signaling or downlink control information DCI and transmitting it to the UE. The method according to any one of claims 1 to 9, characterized in that.

11. In the RO, N ｇａｐ gap symbols are set, Whether the CORESET overlaps with the RO in the time domain, When the CORESET does not overlap with any of the RO and the N ｇａｐ gap symbols in the time domain, it is determined that the CORESET does not overlap with the RO in the time domain, or When the CORESET overlaps at least one of the N ｇａｐ gap symbols in the time domain or overlaps with the RO, it is determined by determining that the CORESET overlaps with the RO in the time domain. The method according to any one of claims 4, 5, and 7, characterized in that.

12. A data transmission method applied to a user equipment UE, Identifying configuration information for a sub-band full-duplex SBFD time-frequency resource from resource transmission information transmitted from a base station; When the identification result is successful in identifying the configuration information, determining an SBFD time-frequency resource in a target slot and a downlink time-frequency resource for receiving downlink data in the target slot based on the configuration information, where the target slot is an uplink UL slot, a downlink DL slot, or a special S slot, and the SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and at least one physical resource block for each symbol in the frequency domain; Determining a data transmission operation corresponding to the downlink time-frequency resource based on an overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource; Executing the determined data transmission operation in the target slot. A data transmission method, characterized in that.

13. The resource transmission information includes system signaling or downlink control information DCI. The method according to claim 12, characterized in that.

14. When the UE is a UE that does not support SBFD, the identification result is that the identification of the configuration information fails. The method according to claim 12 or 13, characterized in that.

15. A data transmission device applied to a base station, For one target slot, a first determination module for determining the sub-band full-duplex SBFD time-frequency resource in the target slot and the downlink time-frequency resource for transmitting downlink data in the target slot, wherein the target slot is an uplink UL slot, a downlink DL slot or a special S slot, and the SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and occupies at least one physical resource block for each symbol in the frequency domain, the first determination module; A second determination module for determining the data transmission operation corresponding to the downlink time-frequency resource based on the symbol type corresponding to the SBFD time-frequency resource and the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource; An execution module for executing the determined data transmission operation in the target slot, comprising: A data transmission device characterized by the above.

16. A data transmission device applied to a user equipment UE, An identification module for identifying the setting information for the sub-band full-duplex SBFD time-frequency resource from the resource transmission information transmitted from the base station; When the identification result is successful in identifying the setting information, a first determination module for determining the SBFD time-frequency resource in the target slot and the downlink time-frequency resource for receiving downlink data in the target slot based on the setting information, wherein the target slot is an uplink UL slot, a downlink DL slot or a special S slot, and the SBFD time-frequency resource occupies at least one symbol of the target slot in the time domain and occupies at least one physical resource block for each symbol in the frequency domain, the first determination module; A second determination module for determining the data transmission operation corresponding to the downlink time-frequency resource based on the overlapping result between the SBFD time-frequency resource and the downlink time-frequency resource; An execution module for executing the determined data transmission operation in the target slot, comprising: A data transmission device characterized by the above.

17. at least one processor; a machine-readable storage medium storing machine-executable instructions, the electronic device comprising: wherein, by reading the machine-executable instructions, the at least one processor is caused to execute the method according to any one of claims 1 to 9 or the method according to claim 12 or 13; An electronic device characterized by the above.

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