Receiving method and indication method for transmission configuration indication state and apparatus

Abstract

A receiving method and indication method for a transmission configuration indication (TCI) state and an apparatus. The method comprises: a terminal device receives configuration information for configuring a time-domain resource of sub-band non-overlapping full duplex (SBFD); the terminal device receives first downlink control information (DCI), the first DCI indicating a first TCI state; and the terminal device applies the first TCI state in a non-SBFD symbol from a first time slot.

Description

Receiving method, indicating method and device of transmission configuration indication status Technical Field

[0001] The present application relates to the field of communications. Background Art

[0002] As the SI (Study Item) of Rel-18, the application scenarios, simulation methods, and potential standardization impact of SubBand non-overlapping Full Duplex (SBFD) were preliminarily studied in Rel-18.

[0003] It should be noted that the above introduction to the technical background is merely for convenience, to provide a clear and complete description of the technical solutions of this application and to facilitate understanding by those skilled in the art. It should not be assumed that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of this application.

[0004] Summary of the Invention

[0005] In the upcoming Rel-19, SBFD will be formally standardized as a WI (Work Item). For SBFD, terminal devices can be configured with non-overlapping downlink subbands and uplink subbands in existing downlink timeslots (or symbols) or flexible timeslots (or symbols), making the timeslots (or symbols) SBFD timeslots (or symbols). Within the SBFD timeslots, terminal devices can send uplink information on the uplink subbands, or receive downlink information on the downlink subbands. That is, the terminal devices operate in half-duplex mode (receive only or transmit only), while the network equipment can operate in full-duplex mode (receive and transmit simultaneously). With SBFD, terminal devices can perform uplink transmissions within existing downlink timeslots or flexible timeslots, which is equivalent to increasing the time and frequency resources available for uplink transmission. This can improve the capacity and coverage of uplink transmissions and reduce the latency of uplink transmissions.

[0006] Figure 1 is a schematic diagram of time-frequency domain resources configured with SBFD subbands. As shown in Figure 1, a terminal device is configured with SBFD subbands. SBFD subbands include downlink subbands and uplink subbands. For example, the uplink subband is located between two downlink subbands in the frequency domain. The time slot in which an SBFD subband is located is called an SBFD time slot, and the symbol in which an SBFD subband is located is called an SBFD symbol. Other time slots (or symbols) are called non-SBFD time slots (or symbols). By configuring SBFD subbands in some time slots, some additional time slots can be used for uplink transmission, which helps to enhance uplink coverage, increase uplink capacity, and reduce uplink transmission latency.

[0007] Rel-17 standardizes a unified transmission configuration indication (TCI). Rel-17 unified TCI targets sTRP scenarios, where the transmission configuration indication (TCI) field of DCI format 1_1 or DCI format 1_2 indicates one or more TCI states. DCI format 1_1 or DCI format 1_2 can schedule downlink data, referred to as DCI format 1_1 / 1_2 with DL assignment, or can not schedule downlink data, referred to as DCI format 1_1 / 1_2 without DL assignment.

[0008] The indication or update of the TCI state actually also includes the indication or update of the beam used by the terminal device. For unified TCI, the high-level parameter "unifiedTCI-StateType" can configure whether to use a joint TCI state or a separate TCI state. When the "unifiedTCI-StateType" parameter takes the value of 'joint', the TCI state is a joint TCI state; when the "unifiedTCI-StateType" parameter takes the value of 'separate', the TCI state is a downlink TCI state and / or an uplink TCI state. The uplink beam is also called an uplink transmit spatial filter. For the unified TCI of Rel-17, a TCI field indicates a joint TCI state, or a downlink TCI state, or an uplink TCI state, or a downlink TCI state and an uplink TCI state. Assuming that the DCI indicates the TCI state, the TCI state begins to be applied after the beam application time. The channels or signals used in the TCI state include dedicated channels or signals for terminal devices and some common channels or signals.

[0009] Rel-17 defines simultaneous TCI update lists. Among N cells in carrier aggregation, N1 (N1 ≤ N) cells belong to one simultaneous TCI update list, N2 (N2 ≤ N) cells belong to another simultaneous TCI update list, and so on. If the TCI state applied to a cell is updated and that cell belongs to a simultaneous TCI update list, the TCI state applied to other cells in the simultaneous TCI update list is also updated. In other words, the TCI state of cells belonging to a simultaneous TCI update list is updated simultaneously.

[0010] Currently, research on Rel-19 SBFD has not yet begun. How to support and use unified TCI in SBFD remains an unresolved issue.

[0011] The inventors discovered that for SBFD, in order to support full-duplex mode, network equipment may use different antenna structures in non-SBFD time slots and SBFD time slots, so that the beams generated in non-SBFD time slots and SBFD time slots are different; or, the SBFD time slot of the first cell may interfere with the SBFD time slot or non-SBFD time slot of the second cell. Due to the introduction of SBFD sub-bands, the interference situation becomes different. For example, the interference may come from the transmission of the terminal device or from the transmission of the network device, which is cross-link interference (CLI). Using different beams for non-SBFD time slots and SBFD time slots can more flexibly coordinate the interference of SBFD time slots, thereby coordinating or avoiding CLI to a certain extent. Therefore, the beams applied in non-SBFD time slots and SBFD time slots may be different, and it is necessary to independently indicate the beams for non-SBFD time slots and SBFD time slots. Unified TCI is an effective method for indicating beams and is also a future trend. However, traditional unified TCI cannot support independent beam indication for non-SBFD time slots and SBFD time slots. Currently, how to indicate a beam (TCI state) for a non-SBFD timeslot and / or a SBFD timeslot under the unified TCI framework is an unresolved issue.

[0012] In order to solve one or more of the above problems, embodiments of the present application provide a method for receiving, a method for indicating, and a device for transmitting a configuration indication status.

[0013] According to a first aspect of an embodiment of the present application, a device for receiving a transmission configuration indication (TCI) state is provided, the device being arranged in a terminal device, the device comprising: a receiving unit for receiving configuration information for configuring sub-band full-duplex (SBFD) time domain resources; and the receiving unit further receiving first downlink control information (DCI), the first DCI indicating a first TCI state; and a processing unit for applying the first TCI state in non-SBFD symbols starting from a first time slot.

[0014] According to the second aspect of an embodiment of the present application, a device for indicating a transmission configuration indication (TCI) state is provided, and the device is arranged in a network device, and the device includes: a sending unit, which is used to send configuration information for configuring SBFD time domain resources to a terminal device; and the sending unit sends first downlink control information (DCI) to the terminal device, and the first DCI indicates a first TCI state.

[0015] According to the third aspect of the embodiment of the present application, a communication system is provided, which includes a terminal device and / or a network device, the terminal device includes the apparatus according to the first aspect of the embodiment of the present application, and the network device includes the apparatus according to the second aspect of the embodiment of the present application.

[0016] According to the fourth aspect of an embodiment of the present application, a method for receiving a transmission configuration indication (TCI) state is provided, the method comprising: a terminal device receiving configuration information for configuring sub-band full-duplex (SBFD) time domain resources; the terminal device receiving first downlink control information (DCI), the first DCI indicating a first TCI state; and the terminal device applying the first TCI state in non-SBFD symbols starting from a first time slot.

[0017] According to the fifth aspect of an embodiment of the present application, a method for indicating a transmission configuration indication (TCI) state is provided, the method comprising: a network device sending configuration information for configuring SBFD time domain resources to a terminal device; and the network device sending first downlink control information (DCI) to the terminal device, the first DCI indicating a first TCI state.

[0018] According to the sixth aspect of the embodiment of the present application, a computer-readable program is provided, wherein when the program is executed in a receiving device or terminal device of a transmission configuration indication state, the program enables the receiving device or terminal device of the transmission configuration indication state to execute the receiving method of the transmission configuration indication state described in the fourth aspect of the embodiment of the present application.

[0019] According to the seventh aspect of the embodiment of the present application, a computer-readable program is provided, wherein when the program is executed in a receiving device or a network device in a transmission configuration indication state, the program causes the indication device or the network device to execute the indication method described in the fifth aspect of the embodiment of the present application.

[0020] According to the eighth aspect of the embodiments of the present application, a storage medium storing a computer-readable program is provided, wherein the computer-readable program enables a receiving device or terminal device of a transmission configuration indication status to execute the receiving method of the transmission configuration indication status described in the fourth aspect of the embodiments of the present application.

[0021] According to the ninth aspect of the embodiment of the present application, a storage medium storing a computer-readable program is provided, wherein the computer-readable program enables an indication device or a network device to execute the indication method described in the fifth aspect of the embodiment of the present application.

[0022] One of the beneficial effects of the embodiments of the present application is that the TCI status can be independently indicated for non-SBFD time slots and SBFD time slots in the unified TCI, thereby achieving flexible interference coordination and improving the reliability of uplink and downlink transmission.

[0023] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0024] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0025] It should be emphasized that the terms “include / comprising / having” when used herein refer to the presence of features, integers, steps or components, but do not preclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0027] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0028] FIG1 is a schematic diagram of time-frequency domain resources configured with SBFD subbands;

[0029] FIG2 is a schematic diagram of a communication system according to an embodiment of the present application;

[0030] FIG3 is a schematic diagram of a method for receiving a transmission configuration indication status according to an embodiment of the present application;

[0031] FIG4 is a schematic diagram of information transmission and reception in the time domain by a terminal device according to an embodiment of the present application;

[0032] FIG5 is another schematic diagram of a method for receiving a transmission configuration indication status according to an embodiment of the present application;

[0033] FIG6 is another schematic diagram of a terminal device according to an embodiment of the present application transmitting and receiving information in the time domain;

[0034] FIG7 is another schematic diagram of a terminal device performing information transmission and reception in the time domain according to an embodiment of the present application;

[0035] FIG8 is another schematic diagram of a terminal device according to an embodiment of the present application transmitting and receiving information in the time domain;

[0036] FIG9 is another schematic diagram of a terminal device according to an embodiment of the present application transmitting and receiving information in the time domain;

[0037] FIG10 is another schematic diagram of a terminal device according to an embodiment of the present application transmitting and receiving information in the time domain;

[0038] FIG11 is another schematic diagram of a terminal device according to an embodiment of the present application transmitting and receiving information in the time domain;

[0039] FIG12 is another schematic diagram of a method for receiving a transmission configuration indication status according to an embodiment of the present application;

[0040] FIG13 is another schematic diagram of a terminal device according to an embodiment of the present application transmitting and receiving information in the time domain;

[0041] FIG14 is a schematic diagram of a method for indicating a transmission configuration indication state according to an embodiment of the present application;

[0042] FIG15 is another schematic diagram of a method for indicating a transmission configuration indication state according to an embodiment of the present application;

[0043] FIG16 is an interactive diagram of a method for receiving a transmission configuration indication status according to an embodiment of the present application;

[0044] FIG17 is another interactive diagram of a method for receiving a transmission configuration indication status according to an embodiment of the present application;

[0045] FIG18 is a schematic diagram of a receiving device for indicating a state of a transmission configuration according to an embodiment of the present application;

[0046] FIG19 is a schematic diagram of an indication device for indicating a transmission configuration status according to an embodiment of the present application;

[0047] FIG20 is a schematic block diagram of a system structure of a terminal device according to an embodiment of the present invention;

[0048] FIG21 is a schematic block diagram of the system structure of the network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0050] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0051] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0052] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0053] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR), etc., and / or other currently known or future communication protocols to be developed.

[0054] In the embodiments of the present application, the term "network device" or "network node" refers to, for example, a device in a communication system that connects a user equipment to a communication network and provides services to the user equipment. Network devices or network nodes may include, but are not limited to, the following devices: "node" and / or "donor" under the IAB architecture, base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0055] Base stations may include, but are not limited to, NodeBs (NBs), evolved NodeBs (eNodeBs or eNBs), and 5G base stations (gNBs). They may also include remote radio heads (RRHs), remote radio units (RRUs), relays, or low-power nodes (e.g., femto, pico, etc.). The term "base station" may encompass some or all of their functions. Each base station can provide communication coverage for a specific geographic area. For example, a 5G gNB may include a gNB CU and one or more gNB DUs, where a CU / DU is a logical node within the gNB that also performs some of the gNB's functions. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used. A gNB-DU supports one or more cells, and a cell is supported by only one gNB-DU.

[0056] In the embodiments of the present application, the term "user equipment" (UE) refers to, for example, a device that accesses a communication network through a network device and receives network services, and may also be referred to as "terminal equipment" (TE). A terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on. For example, a terminal device under the IAB architecture served by an IAB node or an IAB host.

[0057] Among them, terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.

[0058] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0059] In the embodiments of the present application, "when...", "under the circumstances of...", "for the circumstances of..." and "if..." all mean based on one or certain conditions or states, etc. In addition, these expressions can be replaced with each other.

[0060] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0061] FIG2 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example. As shown in FIG2 , a communication system 100 may include a network device 101 and a terminal device 102. For simplicity, FIG2 illustrates only one terminal device and one network device as an example, but the embodiments of the present application are not limited thereto.

[0062] In the embodiment of the present application, existing services or future services can be transmitted between the network device 101 and the terminal device 102. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0063] In the embodiments of the present application, the high-layer signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, an MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The high-layer signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0064] The following describes various implementations of the present application in conjunction with the accompanying drawings. These implementations are merely illustrative and are not intended to limit the present application.

[0065] Embodiments of the first aspect

[0066] An embodiment of the present application provides a method for receiving a transmission configuration indication status, which is applied to a terminal device, such as the terminal device 102 in Figure 2.

[0067] In the embodiment of the present application, DCI refers to DL DCI or UL DC; DCI can be replaced by PDCCH.

[0068] In the embodiment of the present application, the SBFD time slot may be replaced by a SBFD symbol.

[0069] FIG3 is a schematic diagram of a method for receiving a transmission configuration indication state according to an embodiment of the present application. As shown in FIG3 , the method includes:

[0070] 301: The terminal device receives configuration information for configuring sub-band full-duplex (SBFD) time domain resources;

[0071] 302: The terminal device receives first downlink control information (DCI), where the first DCI indicates a first TCI state; and

[0072] 303: The terminal device applies the first TCI state in non-SBFD symbols starting from the first time slot.

[0073] In operation 301 , for example, a terminal device receives configuration information from a network device, where the configuration information is configuration information for configuring sub-band full-duplex (SBFD) time domain resources.

[0074] For example, the configuration information is used for the terminal device to know which symbols are SBFD symbols and which symbols are non-SBFD symbols.

[0075] In addition, the terminal device also receives configuration information for configuring SBFD frequency domain resources from the network device. Therefore, the above-mentioned "time domain resources" can also be replaced by "frequency domain resources" or "time-frequency resources".

[0076] In operations 302 and 303, the terminal device receives first downlink control information (DCI) from the network device, where the first DCI indicates a first TCI state; and, starting from the first time slot, the first TCI state is applied in non-SBFD symbols and the first TCI state is not applied in SBFD symbols.

[0077] Figure 4 is a schematic diagram of information reception and transmission in the time domain by a terminal device according to an embodiment of the present application. For example, as shown in Figure 4, DCI 1 (first DCI) indicates a TCI state 1 (first TCI state), ACK 1 is a HARQ-ACK associated with DCI1, and starting from the first time slot (first time slot) after time t1, TCI state 1 is applied in non-SBFD time slots, but not in SBFD time slots. t1 is at least beamAppTime symbols after ACK 1. DCI 1 can schedule PDSCH, that is, DCI 1 is DCI with DL assignment, or DCI 1 may not schedule PDSCH, that is, DCI 1 is DCI without DL assignment. In addition, beamAppTime is configured by a network device, for example.

[0078] For the sake of simplicity, the embodiments of the present application (e.g., FIG. 4 ) only illustrate the case where all symbols included in an SBFD time slot are SBFD symbols. In this case, “the terminal device applies TCI state 1 in a non-SBFD time slot” is also equivalent to “the terminal device applies TCI state 1 in a non-SBFD symbol”. It is easy to generalize to the case where a part of the symbols included in an SBFD time slot are SBFD symbols and another part of the symbols are non-SBFD symbols. In this case, “the terminal device applies TCI state 1 in a non-SBFD time slot” is not equivalent to “the terminal device applies TCI state 1 in a non-SBFD symbol”. By exchanging the roles of “time slot” and “symbol” in the embodiments of the present application, the method of the embodiments of the present application includes both “the terminal device applies TCI state 1 in a non-SBFD time slot” and “the terminal device applies TCI state 1 in a non-SBFD symbol”. The relationship between “SBFD time slot” and “SBFD symbol” can be obtained in the same way. The above description and generalization apply to all embodiments of the present application.

[0079] FIG5 is another schematic diagram of a method for receiving a transmission configuration indication state according to an embodiment of the present application. As shown in FIG5 , the method includes:

[0080] 501: The terminal device receives configuration information for configuring sub-band full-duplex (SBFD) time domain resources;

[0081] 502: The terminal device receives first downlink control information (DCI), where the first DCI indicates a first TCI state.

[0082] 503: The terminal device applies the first TCI state in non-SBFD symbols starting from the first time slot;

[0083] 504: The terminal device receives a second DCI, where the second DCI indicates a second TCI state.

[0084] 505: The terminal device applies the second TCI state in the SBFD symbol starting from the second time slot.

[0085] Operations 501-503 are the same as operations 301-303 and are not described again here.

[0086] In operations 504 and 505 , the terminal device receives a second DCI from the network device, where the second DCI indicates a second TCI state; and, starting from the second time slot, applies the second TCI state in SBFD symbols.

[0087] In some embodiments, the first time slot and the second time slot may be replaced with a first symbol and a second symbol.

[0088] Figure 6 is another schematic diagram of the terminal device of an embodiment of the present application sending and receiving information in the time domain. For example, as shown in Figure 6, DCI 1 (first DCI) indicates a TCI state 1 (first TCI state), ACK 1 is a HARQ-ACK associated with DCI 1, starting from the first time slot (first time slot) after time t1, TCI state 1 is applied in non-SBFD time slots, but not in SBFD time slots (this part is similar to Figure 4); DCI 2 (second DCI) indicates a TCI state 2 (second TCI state), ACK 2 is a HARQ-ACK associated with DCI 2, starting from the first time slot (second time slot) after time t2, TCI state 2 is applied in SBFD time slots, but not in non-SBFD time slots. Similarly, t2 is at least beamAppTime symbols after ACK 2. DCI 2 may schedule PDSCH or not. In addition, beamAppTime is configured, for example, by a network device.

[0089] In some embodiments, the values ​​of one or more fields in the first DCI are one or more first values; and / or the values ​​of one or more fields in the second DCI are one or more second values.

[0090] For example, the first DCI and the second DCI are distinguished based on one or more fields in the DCI. For example, when a field in the DCI has a first value, the DCI is the first DCI; when the field has a second value, the DCI is the second DCI.

[0091] For example, “the first DCI and the second DCI are distinguished according to one or more fields in the DCI” includes:

[0092] The first DCI satisfies at least one of the following:

[0093] The CRC of the DCI is scrambled by the CS-RNTI;

[0094] The RV field value is all 1s;

[0095] The MCS field value is all 1;

[0096] The NDI field value is 0;

[0097] The HARQ process number field is set to all 0s;

[0098] For FDRA Type 1 or dynamicSwitch, the FDRA field value is all 0s; for FDRA Type 1, the FDRA field value is all 1s;

[0099] The second DCI satisfies at least one of the following:

[0100] The CRC of the DCI is scrambled by the CS-RNTI;

[0101] The RV field value is all 0;

[0102] The MCS field value is all 0;

[0103] The NDI field value is 1;

[0104] The HARQ process number field has a value of all 1s;

[0105] For FDRA Type 1 or dynamicSwitch, the FDRA field value is all 0s; for FDRA Type 1, the FDRA field value is all 1s.

[0106] In some embodiments, the first DCI is a downlink DCI with a downlink assignment (DL assignment) or a downlink DCI without a downlink assignment; and / or the second DCI is a downlink DCI without a downlink assignment.

[0107] For example, the first DCI can be DCI with DL assignment or DCI without DL assignment, and the second DCI can only be DCI without DL assignment. In other words, the TCI state indicated by DCI with DL assignment or the first DCI without DL assignment can be applied to non-SBFD time slots, and the TCI state indicated by the second DCI without DL assignment can only be applied to SBFD time slots.

[0108] For another example, the first DCI can only be DCI with DL assignment, and the second DCI can only be DCI without DL assignment.

[0109] For another example, when the first DCI and the second DCI are both DCI without DL assignment, the first DCI and the second DCI are distinguished according to one or more fields in the DCI.

[0110] Similarly, the roles of the first DCI and the second DCI mentioned above can be interchanged. For example, the second DCI can be DCI with DL assignment or DCI without DL assignment, and the first DCI can only be DCI without DL assignment; for example, the second DCI can only be DCI with DL assignment, and the first DCI can only be DCI without DL assignment.

[0111] In some embodiments, the first DCI has a first DCI format; and / or the second DCI has a second DCI format.

[0112] For example, the first DCI and the second DCI have different DCI formats, the first DCI is DL DCI, and the second DCI is UL DCI. The first DCI can be DCI format 1_1, DCI format 1_2, or DCI format 1_0, the first DCI can be DCI with DL assignment or DCI without DL assignment, and the second DCI can be DCI format 0_1, DCI format 0_2, or DCI format 0_0.

[0113] Similarly, “the DCI format of the first DCI and the second DCI is different” may also include “the second DCI is a DL DCI, and the first DCI is a UL DCI.”

[0114] In some embodiments, the first DCI is located in a non-SBFD symbol; and / or the second DCI is located in a SBFD symbol. The above "symbol" can also be replaced with "time slot". In other words, the first DCI is located in a non-SBFD time slot; and / or the second DCI is located in a SBFD time slot.

[0115] Figure 7 is another schematic diagram of a terminal device transmitting and receiving information in the time domain according to an embodiment of the present application. For example, as shown in Figure 7, if the DCI is in a non-SBFD timeslot, the DCI is DCI 1 (first DCI), and if the DCI is in an SBFD timeslot, the DCI is DCI 2 (second DCI).

[0116] For example, for PDCCH repetition, as long as there is one DCI located in the SBFD time slot, the DCI in the PDCCH repetition is DCI 2 (the second DCI); otherwise, the DCI in the PDCCH repetition is DCI 1 (the first DCI); or, as long as there is one DCI located in the non-SBFD time slot, the DCI in the PDCCH repetition is DCI 1 (the first DCI); otherwise, the DCI in the PDCCH repetition is DCI 2 (the second DCI).

[0117] In some embodiments, when a specific DCI in a PDCCH repetition is located in a non-SBFD symbol, all DCI in the PDCCH repetition is the first DCI; and / or, when a specific DCI in a PDCCH repetition is located in a SBFD symbol, all DCI in the PDCCH repetition is the second DCI. The above "symbol" can also be replaced with "time slot". In other words, when a specific DCI in a PDCCH repetition is located in a non-SBFD time slot, all DCI in the PDCCH repetition is the first DCI; and / or, when a specific DCI in a PDCCH repetition is located in a SBFD time slot, all DCI in the PDCCH repetition is the second DCI.

[0118] For example, for PDCCH repetition, among the multiple DCIs included in the PDCCH repetition, some DCIs may be located in non-SBFD time slots, and some DCIs may be located in SBFD time slots. In this case, if a specific DCI is located in a non-SBFD time slot, the multiple DCIs included in the PDCCH repetition are all considered to be the first DCI. If a specific DCI is located in a SBFD time slot, the multiple DCIs included in the PDCCH repetition are all considered to be the second DCI.

[0119] FIG8 is another schematic diagram of a terminal device according to an embodiment of the present application transmitting and receiving information in the time domain. For example, as shown in FIG8 , assuming that the “specific DCI” is the “first DCI”, the PDCCH repetition includes two DCIs. When the first DCI is in a non-SBFD time slot ( FIG5 (a) ), both DCIs are considered to be DCI 1 (the first DCI). When the first DCI is in an SBFD time slot ( FIG5 (b) ), both DCIs are considered to be DCI 2 (the second DCI).

[0120] In some embodiments, the downlink transmission scheduled by the first DCI is in a non-SBFD symbol; and / or the downlink transmission scheduled by the second DCI is in a SBFD symbol. The term "symbol" can also be replaced with "time slot." In other words, the downlink transmission scheduled by the first DCI is in a non-SBFD time slot; and / or the downlink transmission scheduled by the second DCI is in a SBFD time slot.

[0121] Figure 9 is another schematic diagram of a terminal device according to an embodiment of the present application transmitting and receiving information in the time domain. For example, as shown in Figure 9, if the DCI-scheduled PDSCH (PDSCH 1) is located in a non-SBFD time slot, the DCI is DCI 1 (first DCI), and if the DCI-scheduled PDSCH (PDSCH 2) is located in an SBFD time slot, the DCI is DCI 2 (second DCI).

[0122] For example, in the case where one DCI schedules multiple downlink transmissions, as long as one downlink transmission is located in the SBFD time slot, the DCI is DCI 2 (second DCI), otherwise, the DCI is DCI 1 (first DCI); or, as long as one downlink transmission is located in the non-SBFD time slot, the DCI is DCI 1 (first DCI), otherwise, the DCI is DCI 2 (second DCI).

[0123] In some embodiments, when a DCI schedules multiple downlink transmissions, if a specific downlink transmission is in a non-SBFD symbol, the DCI is a first DCI; and / or, if a specific downlink transmission is in a SBFD symbol, the DCI is a second DCI. The above "symbol" can also be replaced with "time slot". In other words, when a DCI schedules multiple downlink transmissions, if a specific downlink transmission is in a non-SBFD time slot, the DCI is a first DCI; and / or, if a specific downlink transmission is in a SBFD time slot, the DCI is a second DCI.

[0124] For example, a DCI can schedule downlink data for transmission in multiple time slots, that is, schedule downlink transmissions in multiple time slots, some of which may be located in non-SBFD time slots and some in SBFD time slots. In this case, if a specific downlink transmission is located in a non-SBFD time slot, the DCI scheduling the downlink transmission is considered to be the first DCI, and if a specific downlink transmission is located in a SBFD time slot, the DCI scheduling the downlink transmission is considered to be the second DCI. For example, "a specific downlink transmission" is the "first downlink transmission". For example, "a DCI scheduling downlink transmissions in multiple time slots" includes "a DCI scheduling PDSCH repetition", "a DCI scheduling a TB transmitted through multiple time slots", or "a DCI scheduling multiple PDSCHs".

[0125] In some embodiments, the HARQ-ACK associated with the first DCI is located in a non-SBFD symbol; and / or, the HARQ-ACK associated with the second DCI is located in a SBFD symbol. The above "symbol" can also be replaced with "time slot". In other words, the HARQ-ACK associated with the first DCI is located in a non-SBFD time slot; and / or, the HARQ-ACK associated with the second DCI is located in a SBFD time slot.

[0126] Figure 10 is another schematic diagram of a terminal device transmitting and receiving information in the time domain according to an embodiment of the present application. For example, as shown in Figure 10, if the ACK associated with the DCI (ACK 1) is in a non-SBFD timeslot, then the DCI is DCI 1 (first DCI), and if the ACK associated with the DCI (ACK 2) is in an SBFD timeslot, then the DCI is DCI 2 (second DCI).

[0127] For example, when a DCI is associated with multiple HARQ-ACKs, as long as one HARQ-ACK is located in the SBFD time slot, the DCI is DCI 2 (second DCI), otherwise, the DCI is DCI 1 (first DCI); or, as long as one HARQ-ACK is located in the non-SBFD time slot, the DCI is DCI 1 (first DCI), otherwise, the DCI is DCI 2 (second DCI).

[0128] In some embodiments, when one DCI is associated with multiple HARQ-ACKs,

[0129] When a specific HARQ-ACK is located in a non-SBFD symbol, the DCI is the first DCI; and / or, when a specific HARQ-ACK is located in a SBFD symbol, the DCI is the second DCI. The above "symbol" can also be replaced with "time slot". In other words, when a specific HARQ-ACK is located in a non-SBFD time slot, the DCI is the first DCI; and / or, when a specific HARQ-ACK is located in a SBFD time slot, the DCI is the second DCI.

[0130] For example, a DCI may be associated with multiple ACKs (e.g., multiple ACKs transmitted via PUCCH repetition), some of which may be in non-SBFD time slots and some in SBFD time slots. In this case, if a particular ACK is in a non-SBFD time slot, the DCI associated with that ACK is considered the first DCI, and if a particular ACK is in a SBFD time slot, the DCI associated with that ACK is considered the second DCI. For example, a "particular ACK" is the "first ACK."

[0131] In some embodiments, the first symbol of the first time slot is a non-SBFD symbol; and / or, the first symbol of the second time slot is a SBFD symbol. In other words, the first time slot is a non-SBFD time slot; and / or, the second time slot is a SBFD time slot.

[0132] Figure 11 is another schematic diagram of a terminal device in an embodiment of the present application transmitting and receiving information in the time domain. For example, as shown in Figure 11, DCIi indicates a TCI state. According to beamAppTime, time ti (i = 1, 2) can be obtained. If the first time slot after ti is a non-SBFD time slot, the DCI associated with ti is DCI 1 (first DCI). If the first time slot after ti is an SBFD time slot, the DCI associated with ti is DCI 2 (second DCI).

[0133] In some embodiments, the first DCI indicates a frequency and / or time resource for a non-SBFD symbol; and / or, the second DCI indicates a frequency and / or time resource for a SBFD symbol. The above "symbol" can also be replaced with "time slot." In other words, the first DCI indicates a frequency and / or time resource for a non-SBFD time slot; and / or, the second DCI indicates a frequency and / or time resource for a SBFD time slot.

[0134] For example, the frequency and / or time resources of non-SBFD time slots and SBFD time slots are indicated by two types of DCI, respectively. The DCI indicating the resources for non-SBFD time slots is a first DCI, and the DCI indicating the resources for SBFD time slots is a second DCI. For example, the first DCI can only schedule uplink transmissions on non-SBFD symbols, and the second DCI can only schedule uplink transmissions on SBFD symbols.

[0135] In some embodiments, the first TCI state applied by the terminal device in non-SBFD symbols is activated by a first MAC-CE; and / or, the second TCI state applied by the terminal device in SBFD symbols is activated by a second MAC-CE. The above "symbol" can also be replaced with "time slot." In other words, the first TCI state applied by the terminal device in non-SBFD timeslots is activated by the first MAC-CE; and / or, the second TCI state applied by the terminal device in SBFD timeslots is activated by the second MAC-CE.

[0136] For example, the TCI states for non-SBFD timeslots and SBFD timeslots are activated by two separate MAC-CEs: MAC-CE 1 and MAC-CE 2. In other words, MAC-CE 1 activates one or more TCI states for non-SBFD timeslots, and MAC-CE 2 activates one or more TCI states for SBFD timeslots.

[0137] In some embodiments, the first TCI state is indicated by a first DCI in a TCI state activated by a first MAC-CE; and / or the second TCI state is indicated by a second DCI in a TCI state activated by a second MAC-CE.

[0138] For example, the first DCI indicates a TCI state in the TCI state activated by MAC-CE 1, and the second DCI indicates a TCI state in the TCI state activated by MAC-CE 2.

[0139] In some embodiments, the first TCI state used in non-SBFD symbols is from a first TCI state pool; and / or the second TCI state used in SBFD symbols is from a second TCI state pool. The term "symbol" can also be replaced with "timeslot." In other words, the first TCI state used in non-SBFD time slots is from the first TCI state pool; and / or the second TCI state used in SBFD time slots is from the second TCI state pool.

[0140] For example, RRC signaling configures two TCI state pools: one TCI state pool (TCI state pool 1, the first TCI state pool) includes TCI states applied to non-SBFD timeslots, and one TCI state pool (TCI state pool 2, the second TCI state pool) includes TCI states applied to SBFD timeslots. For example, MAC-CE 1 activates the TCI states in TCI state pool 1, and MAC-CE 2 activates the TCI states in TCI state pool 2. The TCI state pool can be replaced with a TCI state list or a TCI state set.

[0141] In some embodiments, the first DCI further indicates a third TCI state. The method further includes: the terminal device applying the third TCI state in SBFD symbols starting from the third time slot. The term "symbol" can also be replaced with "time slot." In other words, the terminal device applies the third TCI state in SBFD time slots starting from the third time slot. Furthermore, the third time slot can be the same as the first time slot.

[0142] FIG12 is another schematic diagram of a method for receiving a transmission configuration indication state according to an embodiment of the present application. As shown in FIG12 , the method includes:

[0143] 1201: The terminal device receives configuration information for configuring sub-band full-duplex (SBFD) time domain resources;

[0144] 1202: The terminal device receives first downlink control information (DCI), where the first DCI indicates a first TCI state and a third TCI state.

[0145] 1203: Starting from the third time slot, the terminal device applies the first TCI state in non-SBFD symbols and applies the third TCI state in SBFD symbols.

[0146] Figure 13 is another schematic diagram of the terminal device of an embodiment of the present application sending and receiving information in the time domain. For example, as shown in Figure 13, a DCI (DCI 3, the first DCI) indicates the TCI state (TCI state 3, the first TCI state) applied to the non-SBFD time slot and the TCI state (TCI state 4, the third TCI state) applied to the SBFD time slot. Starting from the first time slot (the third time slot) after time t3, TCI state 3 is applied in the non-SBFD time slot, and TCI state 4 is applied in the SBFD time slot. For example, a MAC-CE activates one or more pairs of TCI states, and a DCI indicates a pair of TCI states in the activated multiple pairs of TCI states, wherein a pair of TCI states can be expressed as (TCI state 1, TCI state 3). For example, a DCI includes two TCI state fields, and TCI state 3 and TCI state 4 are respectively indicated by two TCI state fields. Similarly, t3 is at least beamAppTime symbols after ACK 3. In addition, beamAppTime is configured by, for example, a network device.

[0147] In some embodiments, the method further includes: after the terminal device initially configures the TCI state pool and before applying the first TCI state and / or second TCI state indicated by the first DCI and / or second DCI, applying a default TCI state in non-SBFD symbols and / or SBFD symbols. The above "symbol" can also be replaced with "time slot". In other words, after the terminal device initially configures the TCI state pool and before applying the first TCI state and / or second TCI state indicated by the first DCI and / or second DCI, applying the default TCI state in non-SBFD time slots and / or SBFD time slots.

[0148] For example, after the TCI state pool is initially configured and before the TCI state indicated by the DCI is applied, the terminal device has not applied any indicated TCI state. In this case, the terminal device uses the default TCI state. The DCI here can be the first DCI, the second DCI, or the third DCI. For example, "the terminal device uses the default TCI state" includes: the terminal device assumes that the UL TX spatial filter used for uplink transmission is the same as the UL TX spatial filter used for PUSCH scheduled by the RAR UL grant in the initial access, or the terminal device assumes that the reference signal of the downlink transmission is quasi-co-located with the SSB in the initial access.

[0149] In some embodiments, applying the first TCI state includes: applying the first TCI state on one or more CCs or applying the first TCI state on one or more BWPs; and / or,

[0150] Applying the second TCI state includes: applying the second TCI state on one or more CCs or applying the second TCI state on one or more BWPs; and / or,

[0151] Applying the third TCI state includes: applying the third TCI state on one or more CCs or applying the third TCI state on one or more BWPs.

[0152] For example, DCI indicates a TCI state for CC 1. The TCI state will be applied to a group of CCs including CC 1. The group of CCs is configured by simultaneousU-TCI-UpdateList.

[0153] In some embodiments, the first TCI state, the second TCI state, or the third TCI state is a joint TCI state, a downlink TCI state (DL TCI state), or an uplink TCI state (UL TCI state).

[0154] For example, for unified TCI, when "unifiedTCI-StateType" is "joint", the TCI state is the joint TCI state; when "unifiedTCI-StateType" is "separate", the TCI state is the DL TCI state or the UL TCI state.

[0155] In some embodiments, the first TCI state, the second TCI state or the third TCI state includes power control parameters; when the first TCI state, the second TCI state or the third TCI state is applied, the power control parameters included therein are also used, that is, the power control parameters included in the first TCI state, the second TCI state or the third TCI state are also used.

[0156] For example, as shown in Figure 6, the RRC IE for TCI state 1 (the first TCI state) includes a first power control parameter, and the RRC IE for TCI state 2 (the second TCI state) includes a second power control parameter. Starting from the first time slot after time t1, the terminal device performs uplink transmission in non-SBFD time slots according to the first power control parameter; starting from the first time slot after time t2, the terminal device performs uplink transmission in SBFD time slots according to the second power control parameter.

[0157] For example, the power control parameter includes at least one of a target received power (P0), a path loss compensation factor (alpha), a path loss reference signal (PL-RS, Pathloss-Reference Signal) and a closed loop index (closed loop index).

[0158] As can be seen from the above embodiment, the terminal device applies the first TCI state for non-SBFD symbols and the second TCI state for SBFD symbols. The first TCI state and the second TCI state can be indicated by different DCIs, or they can be indicated by the same DCI. As a result, the TCI state can be independently indicated for non-SBFD symbols and SBFD symbols in the unified TCI, thereby achieving flexible interference coordination and improving the reliability of uplink and downlink transmissions.

[0159] Embodiments of the second aspect

[0160] An embodiment of the present application provides a method for indicating the status of a transmission configuration indication (TCI), which is applied to a network device. It corresponds to the method for receiving the status of a transmission configuration indication applied to a terminal device described in the embodiment of the first aspect. The same or corresponding content can refer to the records in the embodiment of the first aspect.

[0161] The method is applied to a network device, for example, the network device 101 in FIG. 2 .

[0162] FIG14 is a schematic diagram of a method for indicating a transmission configuration indication state according to an embodiment of the present application. As shown in FIG14 , the method includes:

[0163] 1401: The network device sends configuration information for configuring SBFD time domain resources to the terminal device; and

[0164] 1402: The network device sends first downlink control information (DCI) to the terminal device, where the first DCI indicates a first TCI state.

[0165] 1403: The network device sends second downlink control information (DCI) to the terminal device, where the second DCI indicates a second TCI state.

[0166] FIG15 is another schematic diagram of a method for indicating a transmission configuration indication state according to an embodiment of the present application. As shown in FIG15 , the method includes:

[0167] 1501: The network device sends configuration information for configuring SBFD time domain resources to the terminal device; and

[0168] 1502: The network device sends first downlink control information (DCI) to the terminal device, where the first DCI indicates a first TCI state and a third TCI state.

[0169] In the embodiment of the present application, the specific implementation of the above operations 1401-1403 and 1501-1502 can refer to the relevant records in the embodiment of the first aspect, and will not be repeated here.

[0170] As can be seen from the above embodiment, the terminal device applies the first TCI state for non-SBFD symbols and the second TCI state for SBFD symbols. The first TCI state and the second TCI state can be indicated by different DCIs, or they can be indicated by the same DCI. As a result, the TCI state can be independently indicated for non-SBFD symbols and SBFD symbols in the unified TCI, thereby achieving flexible interference coordination and improving the reliability of uplink and downlink transmissions.

[0171] Embodiments of the third aspect

[0172] The present application provides a method for receiving a transmission configuration indication status, which is applied to a terminal device and a network device, such as terminal device 102 and network device 101 in FIG2 . This method corresponds to the method for receiving a transmission configuration indication status described in the embodiment of the first aspect and the indication method described in the embodiment of the second aspect, and the same contents will not be repeated here.

[0173] FIG16 is an interactive diagram of a method for receiving a transmission configuration indication state according to an embodiment of the present application, which is applied to a terminal device and a network device. As shown in FIG16 , the method includes:

[0174] 1601: The network device sends configuration information for configuring SBFD time domain resources to the terminal device; and

[0175] 1602: The network device sends a first DCI to the terminal device, where the first DCI indicates a first TCI state.

[0176] 1603: The terminal device applies the first TCI state in non-SBFD symbols starting from the first timeslot.

[0177] 1604: The network device sends a second DCI to the terminal device, where the first DCI indicates a second TCI state.

[0178] 1605: The terminal device applies the second TCI state in the SBFD symbol starting from the second time slot.

[0179] FIG16 is only an example, and there is no limitation on the temporal sequence of operations 1602 , 1603 , 1604 , and 1605 .

[0180] FIG17 is another interactive diagram of a method for receiving a transmission configuration indication state according to an embodiment of the present application, which is applied to a terminal device and a network device. As shown in FIG17 , the method includes:

[0181] 1701: The network device sends configuration information for configuring SBFD time domain resources to the terminal device; and

[0182] 1702: The network device sends a first DCI to the terminal device, where the first DCI indicates a first TCI state and a third TCI state.

[0183] 1703: Starting from the third time slot, the terminal device applies the first TCI state in non-SBFD symbols and applies the third TCI state in SBFD symbols.

[0184] In the embodiment of the present application, the specific implementation of the above operations 1601-1605 and 1701-1703 can refer to the records in the embodiment of the first aspect and will not be repeated here.

[0185] As can be seen from the above embodiment, the terminal device applies the first TCI state for non-SBFD symbols and the second TCI state for SBFD symbols. The first TCI state and the second TCI state can be indicated by different DCIs, or they can be indicated by the same DCI. As a result, the TCI state can be independently indicated for non-SBFD symbols and SBFD symbols in the unified TCI, thereby achieving flexible interference coordination and improving the reliability of uplink and downlink transmissions.

[0186] Embodiments of the fourth aspect

[0187] The present application provides a device for receiving a transmission configuration indication status, which is provided in a terminal device. Because the principle of solving the problem of this device is similar to that of the embodiment of the first aspect, its specific implementation can refer to the implementation of the method described in the embodiment of the first aspect, and the same or related content will not be repeated here.

[0188] FIG18 is a schematic diagram of a receiving device for indicating a transmission configuration state according to an embodiment of the present application. As shown in FIG18 , the device 1800 includes:

[0189] A receiving unit 1801 receives configuration information for configuring a sub-band full-duplex (SBFD) time domain resource; and the receiving unit 1801 further receives first downlink control information (DCI), where the first DCI indicates a first TCI state; and

[0190] The processing unit 1802 applies the first TCI state in non-SBFD symbols starting from the first time slot.

[0191] In some embodiments, the receiving unit 1801 further receives a second DCI, where the second DCI indicates a second TCI state, and the processing unit 1802 applies the second TCI state in SBFD symbols starting from the second time slot.

[0192] In some embodiments, the values ​​of one or more fields in the first DCI are one or more first values; and / or, the values ​​of one or more fields in the second DCI are one or more second values.

[0193] In some embodiments, the first DCI is a downlink DCI with a downlink assignment (DL assignment) or a downlink DCI without a downlink assignment; and / or the second DCI is a downlink DCI without a downlink assignment.

[0194] In some embodiments, the first DCI has a first DCI format; and / or the second DCI has a second DCI format.

[0195] In some embodiments, the first DCI is located in a non-SBFD symbol; and / or the second DCI is located in a SBFD symbol.

[0196] In some embodiments, when a specific DCI in a PDCCH repetition is located in a non-SBFD symbol, the DCI in the PDCCH repetition is the first DCI; and / or, when a specific DCI in the PDCCH repetition is located in a SBFD symbol, the DCI in the PDCCH repetition is the second DCI.

[0197] In some embodiments, the downlink transmission scheduled by the first DCI is located in a non-SBFD symbol; and / or the downlink transmission scheduled by the second DCI is located in a SBFD symbol.

[0198] In some embodiments, when a DCI schedules multiple downlink transmissions, when a specific downlink transmission is located in a non-SBFD symbol, the DCI is the first DCI; and / or, when a specific downlink transmission is located in a SBFD symbol, the DCI is the second DCI.

[0199] In some embodiments, the HARQ-ACK associated with the first DCI is located in a non-SBFD symbol; and / or the HARQ-ACK associated with the second DCI is located in a SBFD symbol.

[0200] In some embodiments, when a DCI is associated with multiple HARQ-ACKs, when a specific HARQ-ACK is located in a non-SBFD symbol, the DCI is the first DCI; and / or, when a specific HARQ-ACK is located in a SBFD symbol, the DCI is the second DCI.

[0201] In some embodiments, the first symbol of the first time slot is a non-SBFD symbol; and / or the first symbol of the second time slot is a SBFD symbol.

[0202] In some embodiments, the first DCI is a non-SBFD symbol indicating a frequency and / or time resource; and / or the second DCI is a SBFD symbol indicating a frequency and / or time resource.

[0203] In some embodiments, the first TCI state applied in non-SBFD symbols is activated by a first MAC-CE; and / or the second TCI state applied in SBFD symbols is activated by a second MAC-CE.

[0204] In some embodiments, the first TCI state is indicated by the first DCI in a TCI state activated by the first MAC-CE; and / or the second TCI state is indicated by the second DCI in a TCI state activated by the second MAC-CE.

[0205] In some embodiments, the first TCI state applied in the non-SBFD symbol is from a first TCI state pool; and / or the second TCI state applied in the SBFD symbol is from a second TCI state pool.

[0206] In some embodiments, the first DCI further indicates a third TCI state, and the processing unit 1802 applies the third TCI state in SBFD symbols starting from the third time slot.

[0207] In some embodiments, after the TCI state pool is initially configured and before applying the first TCI state and / or the second TCI state indicated by the first DCI and / or the second DCI, the processing unit 1802 applies a default TCI state in non-SBFD symbols and / or SBFD symbols.

[0208] In some embodiments, the first TCI state, the second TCI state, or the third TCI state is a joint TCI state, a downlink TCI state (DL TCI state), or an uplink TCI state (UL TCI state).

[0209] In some embodiments, the first TCI state, the second TCI state, or the third TCI state includes a power control parameter; the processing unit also uses the included power control parameter when applying the first TCI state, the second TCI state, or the third TCI state.

[0210] As can be seen from the above embodiment, the terminal device applies the first TCI state for non-SBFD symbols and the second TCI state for SBFD symbols. The first TCI state and the second TCI state can be indicated by different DCIs, or they can be indicated by the same DCI. As a result, the TCI state can be independently indicated for non-SBFD symbols and SBFD symbols in the unified TCI, thereby achieving flexible interference coordination and improving the reliability of uplink and downlink transmissions.

[0211] Embodiments of the fifth aspect

[0212] The present application provides a device for indicating the status of a transmission configuration indication (TCI), which is applied to a network device. Because the principle of solving the problem of this device is similar to that of the embodiment of the second aspect, its specific implementation can refer to the implementation of the method described in the embodiment of the second aspect, and the same or related content will not be repeated here.

[0213] FIG19 is a schematic diagram of a device for indicating a transmission configuration indication state according to an embodiment of the present application. As shown in FIG19 , the device 1900 includes:

[0214] The sending unit 1901 is configured to send configuration information for configuring SBFD time domain resources to the terminal device; and the sending unit 1901 sends first downlink control information (DCI) to the terminal device, where the first DCI indicates a first TCI state.

[0215] In some embodiments, the sending unit 1901 further sends second downlink control information (DCI) to the terminal device, where the second DCI indicates a second TCI state.

[0216] As can be seen from the above embodiment, the terminal device applies the first TCI state for non-SBFD symbols and the second TCI state for SBFD symbols. The first TCI state and the second TCI state can be indicated by different DCIs, or they can be indicated by the same DCI. As a result, the TCI state can be independently indicated for non-SBFD symbols and SBFD symbols in the unified TCI, thereby achieving flexible interference coordination and improving the reliability of uplink and downlink transmissions.

[0217] Embodiments of the sixth aspect

[0218] An embodiment of the present application provides a terminal device, which includes a receiving device for the transmission configuration indication status according to the embodiment of the fourth aspect.

[0219] Figure 20 is a schematic block diagram of the system architecture of a terminal device according to an embodiment of the present invention. As shown in Figure 20 , terminal device 2000 may include a processor 2010 and a memory 2020; memory 2020 is coupled to processor 2010. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunications or other functions.

[0220] In one embodiment, the functionality of the receiving device for transmitting the configuration indication status may be integrated into the processor 2010 .

[0221] Processor 2010 is configured as follows: the terminal device receives configuration information for configuring sub-band full-duplex (SBFD) time domain resources; the terminal device receives first downlink control information (DCI), the first DCI indicating a first TCI state; and the terminal device applies the first TCI state in non-SBFD symbols starting from the first time slot.

[0222] In another embodiment, the receiving device for the transmission configuration indication status can be configured separately from the processor 2010. For example, the receiving device for the transmission configuration indication status can be configured as a chip connected to the processor 2010, and the function of the receiving device for the transmission configuration indication status is realized through the control of the processor 2010.

[0223] As shown in FIG20 , the terminal device 2000 may further include: a communication module 2030, an input unit 2040, a display 2050, and a power supply 2060. It is worth noting that the terminal device 2000 does not necessarily include all the components shown in FIG20 ; in addition, the terminal device 2000 may also include components not shown in FIG20 , and reference may be made to related art for details.

[0224] As shown in FIG. 20 , the processor 2010 is sometimes also referred to as a controller or an operation control, and may include a microprocessor or other processor device and / or logic device. The processor 2010 receives input and controls the operation of various components of the terminal device 2000 .

[0225] Memory 2020 may be, for example, one or more of a cache, flash memory, a hard drive, removable media, volatile memory, non-volatile memory, or other suitable devices. It may store various data and may also store programs for executing related information. Processor 2010 may execute the programs stored in memory 2020 to implement information storage or processing. The functions of other components are similar to those of existing devices and are not further described here. Each component of terminal device 2000 may be implemented using dedicated hardware, firmware, software, or a combination thereof without departing from the scope of the present invention.

[0226] As can be seen from the above embodiment, the terminal device applies the first TCI state for non-SBFD symbols and the second TCI state for SBFD symbols. The first TCI state and the second TCI state can be indicated by different DCIs, or they can be indicated by the same DCI. As a result, the TCI state can be independently indicated for non-SBFD symbols and SBFD symbols in the unified TCI, thereby achieving flexible interference coordination and improving the reliability of uplink and downlink transmissions.

[0227] Embodiments of the seventh aspect

[0228] An embodiment of the present application provides a network device, which includes the indication device according to the embodiment of the fifth aspect.

[0229] Figure 21 is a schematic block diagram of the system configuration of a network device according to an embodiment of the present application. As shown in Figure 21, network device 2100 may include a processor 2110 and a memory 2120; the memory 2120 is coupled to the processor 2110. The memory 2120 can store various data and also stores an information processing program 2130. This program 2130 is executed under the control of the processor 2110 to receive various information sent by terminal devices and to send various information to terminal devices.

[0230] In one embodiment, the functionality of the pointing device may be integrated into the processor 2110 .

[0231] The processor 2110 may be configured to: send, by the network device, configuration information for configuring SBFD time domain resources to the terminal device; and send, to the terminal device, first downlink control information (DCI), where the first DCI indicates a first TCI state.

[0232] In another embodiment, the indicating device may be configured separately from the processor 2110 . For example, the indicating device may be configured as a chip connected to the processor 2110 , and the function of the indicating device may be realized under the control of the processor 2110 .

[0233] In addition, as shown in Figure 21, network device 2100 may further include: a transceiver 2140 and an antenna 2150; wherein, the functions of the above components are similar to those in the prior art and are not described here in detail. It is worth noting that network device 2100 does not necessarily include all the components shown in Figure 21; in addition, network device 2100 may also include components not shown in Figure 21, and reference may be made to the prior art for details.

[0234] As can be seen from the above embodiment, the terminal device applies the first TCI state for non-SBFD symbols and the second TCI state for SBFD symbols. The first TCI state and the second TCI state can be indicated by different DCIs, or they can be indicated by the same DCI. As a result, the TCI state can be independently indicated for non-SBFD symbols and SBFD symbols in the unified TCI, thereby achieving flexible interference coordination and improving the reliability of uplink and downlink transmissions.

[0235] Embodiments of the eighth aspect

[0236] The embodiment of the present application provides a communication system, including the terminal device according to the embodiment of the sixth aspect and / or the network device according to the embodiment of the seventh aspect. For specific details, please refer to the description of the embodiment of the sixth aspect and the embodiment of the seventh aspect.

[0237] For example, the structure of the communication system can refer to Figure 2. As shown in Figure 2, the communication system 100 includes a network device 101 and a terminal device 102. The terminal device 102 can be the same as the terminal device recorded in the embodiment of the sixth aspect, and / or, the network device 101 can be the same as the network device recorded in the embodiment of the seventh aspect. The repeated content will not be repeated.

[0238] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The logic component is, for example, a field programmable logic component, a microprocessor, a processor used in a computer, etc. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0239] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in Figure 18 and / or one or more combinations of functional block diagrams can correspond to various software modules of a computer program flow or to various hardware modules. These software modules can correspond to the various steps shown in Figure 3, respectively. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0240] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0241] One or more of the functional blocks and / or one or more combinations of functional blocks described in FIG18 may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in FIG18 may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0242] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

[0243] According to various implementations disclosed in the examples of this application, the following notes are also disclosed:

[0244] 1. A method for receiving a transmission configuration indication (TCI) status, the method comprising:

[0245] The terminal device receives first downlink control information (DCI), where the first DCI indicates a first TCI state;

[0246] The terminal device applies the first TCI state in non-subband full-duplex (SBFD) symbols starting from the first time slot.

[0247] 2. The method according to Note 1, wherein the method further comprises:

[0248] The terminal device receives a second DCI, where the second DCI indicates a second TCI state.

[0249] The terminal device applies the second TCI state in the SBFD symbol starting from the second time slot.

[0250] 3. The method according to Note 1, wherein:

[0251] The first DCI further indicates a third TCI state,

[0252] The method further comprises:

[0253] The terminal device applies the third TCI state in the SBFD symbol starting from the third time slot.

[0254] 4. The method according to any one of Notes 1 to 3, wherein:

[0255] The applying the first TCI state includes: applying the first TCI state on one or more CCs or applying the first TCI state on one or more BWPs; and / or,

[0256] The applying the second TCI state includes: applying the second TCI state on one or more CCs or applying the second TCI state on one or more BWPs; and / or,

[0257] The applying the third TCI state includes: applying the third TCI state on one or more CCs or applying the third TCI state on one or more BWPs.

[0258] 5. A method for indicating a transmission configuration indication (TCI) state, the method comprising:

[0259] The network device sends configuration information for configuring SBFD time domain resources to the terminal device; and

[0260] The network device sends first downlink control information (DCI) to the terminal device, where the first DCI indicates a first TCI state.

[0261] 6. The method according to Note 5, further comprising:

[0262] The network device sends a second DCI to the terminal device, where the second DCI indicates a second TCI state.

[0263] 7. The method according to Note 5, wherein:

[0264] The first DCI further indicates a third TCI state.

[0265] 8. The method according to any one of Notes 5 to 7, wherein:

[0266] The first TCI state, the second TCI state, or the third TCI state is: a joint TCI state, a downlink TCI state (DL TCI state), or an uplink TCI state (UL TCI state).

Claims

1. A receiving device for a Transmission Configuration Indicator (TCI) state, the device being disposed in a terminal device, the device comprising: a receiving unit that receives configuration information for configuring Sub - Band Full - Duplex (SBFD) time - domain resources; and, the receiving unit further receives a first Downlink Control Information (DCI), the first DCI indicating a first TCI state; and a processing unit that applies the first TCI state in non - SBFD symbols starting from a first time slot.

2. The device according to claim 1, wherein, the receiving unit further receives a second DCI, the second DCI indicating a second TCI state, and the processing unit applies the second TCI state in SBFD symbols starting from a second time slot.

3. The device according to claim 2, wherein, one or more fields in the first DCI take one or more first numerical values; and / or, one or more fields in the second DCI take one or more second numerical values.

4. The device according to claim 2, wherein, the first DCI is a downlink DCI with a downlink assignment (DL assignment) or a downlink DCI without a downlink assignment; and / or, the second DCI is a downlink DCI without a downlink assignment.

5. The device according to claim 2, wherein, the first DCI has a first DCI format (DCI format); and / or, the second DCI has a second DCI format.

6. The device according to claim 2, wherein, the first DCI is located in non - SBFD symbols; and / or, the second DCI is located in SBFD symbols.

7. The device according to claim 6, wherein, when a specific DCI in a Physical Downlink Control Channel (PDCCH) repetition is located in non - SBFD symbols, all DCIs in the PDCCH repetition are the first DCI; and / or, when a specific DCI in a PDCCH repetition is located in SBFD symbols, all DCIs in the PDCCH repetition are the second DCI.

8. The device according to claim 2, wherein, the downlink transmission scheduled by the first DCI is located in non - SBFD symbols; and / or, the downlink transmission scheduled by the second DCI is located in SBFD symbols.

9. The device according to claim 8, wherein, in the case where one DCI schedules multiple downlink transmissions, when a specific downlink transmission is located in non - SBFD symbols, the DCI is the first DCI; and / or, when a specific downlink transmission is located in SBFD symbols, the DCI is the second DCI.

10. The device according to claim 2, wherein, the Hybrid Automatic Repeat reQuest - Acknowledgement (HARQ - ACK) associated with the first DCI is located in non - SBFD symbols; and / or, the HARQ - ACK associated with the second DCI is located in SBFD symbols.

11. The device according to claim 10, wherein, in the case where one DCI is associated with multiple HARQ - ACKs, When a specific HARQ-ACK is located in a non-SBFD symbol, the DCI is the first DCI; and / or, When a specific HARQ-ACK is located in an SBFD symbol, the DCI is the second DCI.

12. The apparatus according to claim 2, wherein, the first symbol of the first time slot is a non-SBFD symbol; and / or, the first symbol of the second time slot is an SBFD symbol.

13. The apparatus according to claim 2, wherein, the first DCI indicates frequency and / or time resources for non-SBFD symbols; and / or, the second DCI indicates frequency and / or time resources for SBFD symbols.

14. The apparatus according to claim 2, wherein, the first TCI state applied in non-SBFD symbols is activated by a first MAC-CE; and / or, the second TCI state applied in SBFD symbols is activated by a second MAC-CE.

15. The apparatus according to claim 14, wherein, the first TCI state is indicated by the first DCI among the TCI states activated by the first MAC-CE; and / or, the second TCI state is indicated by the second DCI among the TCI states activated by the second MAC-CE.

16. The apparatus according to claim 2, wherein, the first TCI state applied in non-SBFD symbols is from a first TCI state pool; and / or the second TCI state applied in SBFD symbols is from a second TCI state pool.

17. The apparatus according to claim 1, wherein, the first DCI further indicates a third TCI state, and the processing unit starts from a third time slot and applies the third TCI state in SBFD symbols.

18. The apparatus according to claim 2, wherein, after initially configuring the TCI state pool and before applying the first TCI state and / or the second TCI state indicated by the first DCI and / or the second DCI, the processing unit applies a default TCI state in non-SBFD symbols and / or SBFD symbols.

19. The apparatus according to claim 1 or 2 or 17, wherein, the first TCI state, the second TCI state or the third TCI state is: a joint TCI state or a downlink TCI state (DL TCI state) or an uplink TCI state (UL TCI state).

20. The apparatus according to claim 1 or 2 or 17, wherein, the first TCI state, the second TCI state or the third TCI state includes power control parameters; when applying the first TCI state, the second TCI state or the third TCI state, the processing unit also uses the included power control parameters.

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