Uplink data transmission, uplink data receiving device and method

Abstract

In an embodiment of the present invention, an uplink data transmission, an uplink data receiving apparatus, and a method are provided. The terminal device determines related parameters for uplink data transmission within the second operation time based on parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time. Thereby, ambiguity in the use of related parameters for uplink data transmission can be avoided, and thus uplink data transmission failure due to this ambiguity can be avoided.

Description

[Technical Field]

[0001] The present invention relates to the field of communications. [Background technology]

[0002] 3GPP (registered trademark) is working on standardization of unified transmission configuration indication (TCI) in the Release 17 (Rel-17) standardization process, among which the unified TCI in Rel-17 is mainly designed for single transmission and reception point (sTRP) scenarios.

[0003] With the progress of standardization work, multiple transmission and reception points (mTRP) will become an important scenario for 5G NR systems, and mTRP-based transmission can achieve the goals of improving throughput or reliability.

[0004] In previous standardization work, Rel-16 standardized mTRP-based Physical Downlink Shared Channel (PDSCH) transmission, and Rel-17 standardized mTRP-based Physical Downlink Control Channel (PDCCH), Physical Uplink Shared Channel (PUSCH), and Physical Uplink Control Channel (PUCCH) transmission, among which mTRP transmission includes mTRP transmission based on single Downlink Control Information (sDCI) and mTRP transmission based on multiple DCI (mDCI).

[0005] It should be noted that the introduction of the above background art is intended to clearly and completely explain the technical solutions of the present invention and to facilitate understanding by those skilled in the art, and these technical solutions described in the background art of the present invention should not be construed as being known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0006] In a scenario where the Rel-17 unified TCI is for a single transmission and reception point (sTRP), a network device configures M (M≧1) TCI states for a terminal device using RRC signaling, activates N (1≦N≦M) TCI states among the M TCI states using a medium access control (MAC) control element (CE), and indicates L (1≦L≦N) TCI states among the N TCI states using downlink control information (DCI). A 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 may schedule downlink data, in which case it is referred to as DCI format 1_1 / 1_2 with DL assignment, or may not schedule downlink data, in which case it is referred to as DCI format 1_1 / 1_2 without DL assignment.

[0007] One TCI state (abbreviated as TCI) may include or correspond to one or two source reference signals (source RS, source reference signal). The source reference signal may provide Quasi Co-Location (QCL) information for downlink reception and is referred to as a downlink source reference signal. The source reference signal may provide a reference for an uplink transmission spatial filter (UL TX spatial filter) and is referred to as an uplink source reference signal. The source reference signal may provide beam information for a target channel / signal. For example, the beam for a terminal device to receive a target channel / signal is the same as the beam for receiving a downlink source reference signal. Also, for example, the beam for a terminal device to transmit a target channel / signal is the same as the beam for transmitting an uplink source reference signal. Also, for example, the beam for a terminal device to transmit a target channel / signal and the beam for receiving a downlink source reference signal have reciprocity, i.e., they use beams with opposite directions.

[0008] Therefore, an instruction or update to a TCI state actually includes an instruction or update to the beam used by the terminal device. The TCI state includes a joint TCI state, a downlink TCI state, and an uplink TCI state. The source reference signal included in the downlink TCI state is a downlink source reference signal, the source reference signal included in the uplink TCI state is an uplink source reference signal, and the source reference signal included in the joint TCI state is both a downlink source reference signal and an uplink source reference signal. The joint TCI state simultaneously affects the downlink beam (receive beam) and the uplink beam (transmit beam). In other words, the downlink beam and the uplink beam use the same beam, but the beam directions are opposite, i.e., there is reciprocity between the uplink and downlink beams. The downlink TCI state only affects the downlink beam. The uplink TCI state only affects the uplink beam. The uplink beam is also called the uplink transmit spatial filter. The TCI field can indicate a joint TCI state (joint DL / UL TCI), or the TCI field can indicate a downlink TCI state and / or an uplink TCI state (separate DL / UL TCI), and these two modes can be configured by RRC signaling. In the case of Rel-17 unified TCI, one TCI field indicates one joint TCI state, or one downlink TCI state, or one uplink TCI state, or one downlink TCI state and one uplink TCI state. The TCI state indicated by one DCI is valid within a certain period until another DCI indicates an updated TCI, and this period is called the TCI state active period.

[0009] Multiple TRP (mTRP, multiple transmission and reception point) is an important scenario in 5G NR systems, and mTRP-based transmission can achieve the goals of improving throughput or reliability. Rel-16 standardized mTRP-based PDSCH transmission, while Rel-17 standardized mTRP-based PDCCH, PUSCH, and PUCCH transmission. Furthermore, mTRP transmission in the current Rel-17 includes mTRP transmission based on sDCI (single DCI) and mTRP transmission based on mDCI (multiple DCI). For sDCI mTRP, one DCI schedules uplink and downlink transmissions of two TRPs, which is more suitable when the backhaul between the TRPs is ideal. For mDCI mTRP, two TRPs schedule uplink and downlink transmissions of their respective TRPs using two DCIs, which is more suitable when the backhaul between the TRPs is not ideal.

[0010] However, the inventors have found that in Rel-18, when an UL DCI and its scheduled PUSCH are in different application times, the problem to be solved is how to determine an UL TCI state and an SRS resource set associated with a PUSCH, and how to transmit a PUSCH based on the determined UL TCI state and SRS resource set.

[0011] To address at least one of the above-mentioned problems, an embodiment of the present invention provides a method and apparatus for uplink data transmission and uplink data reception, in which a terminal device determines relevant parameters for uplink data transmission within the second operating time based on parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time, thereby avoiding ambiguity in the use of relevant parameters for uplink data transmission and thus preventing uplink data transmission failures due to the ambiguity. [Means for solving the problem]

[0012] According to one aspect of an embodiment of the present invention, an uplink data transmission method is provided, which is applied to a terminal device, wherein two SRS resource sets are configured in the terminal device, and the method includes: the terminal device receives third downlink control information for scheduling uplink data within a first action time, wherein at least a portion of the uplink data is within a second action time; and The method includes determining, by the terminal device, based on parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for uplink data within the second action time.

[0013] According to another aspect of an embodiment of the present invention, there is provided an uplink data transmission method, which is applied to a terminal device, in which two SRS resource sets are configured in the terminal device, and the method includes: the terminal device receives third downlink control information for scheduling uplink data within a first operating time, and the terminal device transmits the uplink data within the first operating time; and The third downlink control information includes determining, based on at least one of an SRS resource set, an SRS resource, and a TPMI indicated by the third downlink control information, whether the terminal device performs uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data.

[0014] According to another aspect of an embodiment of the present invention, there is provided an uplink data transmission method, which is applied to a terminal device, in which two SRS resource sets are configured in the terminal device, and the method includes: the terminal device receives third downlink control information for scheduling uplink data within a first action time, wherein at least a portion of the uplink data is within a second action time; and The terminal device does not transmit uplink data during the second operation time.

[0015] According to another aspect of the embodiment of the present invention, there is provided an uplink data reception method, which is applied to a network device, in which two SRS resource sets are configured in a terminal device, and the method includes: The network device transmits third downlink control information for scheduling uplink data to the terminal device within a first action time, where at least a portion of the uplink data is within a second action time; and The method includes the network device receiving uplink data within the second action time, wherein the terminal device determines, based on parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data within the second action time.

[0016] According to another aspect of the embodiment of the present invention, there is provided an uplink data reception method, which is applied to a network device, in which two SRS resource sets are configured in a terminal device, and the method includes: The network device transmits third downlink control information for scheduling uplink data to the terminal device within a first action time; and The network device receives the uplink data within the first action time, and the terminal device determines, based on at least one of an SRS resource set, an SRS resource, and a TPMI indicated by the third downlink control information, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data.

[0017] According to another aspect of the embodiment of the present invention, there is provided an uplink data reception method, which is applied to a network device, in which two SRS resource sets are configured in a terminal device, and the method includes: The network device transmits third downlink control information for scheduling uplink data to the terminal device within a first action time, where at least a portion of the uplink data is within a second action time; and The network device does not receive uplink data during the second action time, and the terminal device does not transmit uplink data during the second action time.

[0018] According to another aspect of the embodiment of the present invention, there is provided an uplink data transmission apparatus, which is disposed in a terminal device, wherein two SRS resource sets are configured in the terminal device, and the uplink data transmission apparatus comprises: a first receiving unit for receiving third downlink control information for scheduling uplink data within a first operating time period, at least a portion of the uplink data being within a second operating time period; and The downlink control information further includes a first transmitting unit that determines, according to a parameter indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for uplink data within the second operation time.

[0019] According to another aspect of the embodiment of the present invention, there is provided an uplink data transmission apparatus, which is disposed in a terminal device, wherein two SRS resource sets are configured in the terminal device, and the uplink data transmission apparatus comprises: a second receiving unit for receiving third downlink control information for scheduling uplink data within a first operating time period, the terminal device transmitting the uplink data within the first operating time period; and The third downlink control information includes a second transmitting unit that determines, based on at least one of an SRS resource set, an SRS resource, and an uplink precoding index (transmit precoding matrix indicator, TPMI) indicated by the third downlink control information, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP).

[0020] According to another aspect of the embodiment of the present invention, there is provided an uplink data transmission apparatus, which is disposed in a terminal device, wherein two SRS resource sets are configured in the terminal device, and the uplink data transmission apparatus comprises: a third receiving unit for receiving third downlink control information for scheduling uplink data within a first operating time period, at least a portion of the uplink data being within a second operating time period; and and a third transmitting unit that does not transmit uplink data within the second operating time.

[0021] According to another aspect of the embodiment of the present invention, there is provided an uplink data receiving apparatus, the uplink data receiving apparatus being disposed in a network device, the uplink data receiving apparatus comprising: a first transmitting unit for transmitting third downlink control information for scheduling uplink data to a terminal device within a first operating time, wherein at least a portion of the uplink data is within a second operating time, and two SRS resource sets are configured in the terminal device; and a first receiving unit for receiving uplink data within the second operating time; Wherein, the terminal device determines, according to parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for uplink data within the second action time.

[0022] According to another aspect of the embodiment of the present invention, there is provided an uplink data receiving apparatus, the uplink data receiving apparatus being disposed in a network device, the uplink data receiving apparatus comprising: a second transmitting unit for transmitting third downlink control information for scheduling uplink data to a terminal device within a first operating time, wherein two SRS resource sets are configured in the terminal device; and a second receiving unit for receiving the uplink data within the first operating time; Wherein, the terminal device determines, based on at least one of an SRS resource set, an SRS resource, and a TPMI indicated by the third downlink control information, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for the uplink data.

[0023] According to another aspect of the embodiment of the present invention, there is provided an uplink data receiving apparatus, the uplink data receiving apparatus being disposed in a network device, the uplink data receiving apparatus comprising: a third receiving unit for transmitting third downlink control information for scheduling uplink data to a terminal device within a first operating time period, wherein at least a portion of the uplink data is within a second operating time period, and two SRS resource sets are configured in the terminal device; and A third transmitting unit that does not transmit uplink data during the second action time, and the terminal device does not transmit uplink data during the second action time, is included. [Effects of the Invention]

[0024] The advantageous effects of the embodiment of the present invention are at least as follows.

[0025] The terminal device determines related parameters for uplink data transmission within the second action period based on the parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action period, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus preventing uplink data transmission failure due to the ambiguity.

[0026] The following description and the accompanying drawings disclose in detail certain embodiments of the present invention, illustrating ways in which the principles of the present invention may be employed. However, the scope of the present invention is not limited thereto. Embodiments of the present invention may include various changes, modifications, and alternatives within the scope of the appended claims.

[0027] Furthermore, features described and / or shown in one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in the other embodiments, or may be substituted for features in the other embodiments.

[0028] It should be noted that terms such as "comprise / have" when used in this specification refer to the presence of a feature, element, step or assembly, but do not exclude the presence or addition of one or more other features, elements, steps or assemblies. [Brief explanation of the drawings]

[0029] Elements and features described in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments, and in the drawings, like reference numerals are used to indicate corresponding parts in several drawings and to indicate corresponding parts used in multiple embodiments. [Figure 1] 1 is a diagram illustrating a communication system according to an embodiment of the present invention. [Figure 2] FIG. 1 illustrates a signaling transmission process in an embodiment of the present invention. [Figure 3] FIG. 10 illustrates another signaling transmission process in an embodiment of the present invention. [Figure 4] A diagram showing an uplink data transmission method in an embodiment of the present invention. [Figure 5] FIG. 10 is a diagram illustrating the association relationship of mTRP PUSCH-related parameters in an embodiment of the present invention. [Figure 6]FIG. 10 is a diagram illustrating the association relationship of sTRP PUSCH-related parameters in an embodiment of the present invention. [Figure 7] FIG. 10 illustrates another signaling transmission process in an embodiment of the present invention. [Figure 8] FIG. 2 is a diagram showing an example of a method for determining uplink data-related parameters in Case 1 according to an embodiment of the present invention. [Figure 9] FIG. 10 is a diagram illustrating an example of a method for determining uplink data-related parameters in Case 2 according to an embodiment of the present invention. [Figure 10] FIG. 10 is a diagram illustrating an example of a method for determining uplink data-related parameters in Case 3 according to an embodiment of the present invention. [Figure 11] FIG. 10 is a diagram showing an example of a method for determining uplink data-related parameters in Case 4 in an embodiment of the present invention. [Figure 12] FIG. 10 is a diagram illustrating PUSCH transmission in an embodiment of the present invention. [Figure 13] FIG. 10 is a diagram illustrating another PUSCH transmission in an embodiment of the present invention. [Figure 14] FIG. 10 is a diagram illustrating another PUSCH transmission in an embodiment of the present invention. [Figure 15] FIG. 10 is a diagram illustrating another PUSCH transmission in an embodiment of the present invention. [Figure 16] FIG. 10 is a diagram illustrating another uplink data transmission method in an embodiment of the present invention. [Figure 17] FIG. 10 illustrates another signaling transmission process in an embodiment of the present invention. [Figure 18] A diagram showing another uplink data transmission method in an embodiment of the present invention. [Figure 19] FIG. 10 illustrates another signaling transmission process in an embodiment of the present invention. [Figure 20] A diagram showing an uplink data receiving method in an embodiment of the present invention. [Figure 21] FIG. 10 is a diagram illustrating another uplink data reception method in an embodiment of the present invention. [Figure 22]A diagram showing another uplink data reception method in an embodiment of the present invention. [Figure 23] FIG. 1 is a diagram illustrating an uplink data transmission device according to an embodiment of the present invention. [Figure 24] FIG. 10 is a diagram illustrating another uplink data transmission device according to an embodiment of the present invention. [Figure 25] FIG. 10 is a diagram illustrating another uplink data transmission device according to an embodiment of the present invention. [Figure 26] 1 is a diagram illustrating an uplink data receiving device according to an embodiment of the present invention. [Figure 27] FIG. 10 is a diagram illustrating another uplink data receiving device according to an embodiment of the present invention. [Figure 28] FIG. 10 is a diagram illustrating another uplink data receiving device according to an embodiment of the present invention. [Figure 29] FIG. 1 is a configuration diagram of a network device according to an embodiment of the present invention. [Figure 30] FIG. 2 is a configuration diagram of a terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0030] The foregoing and other features of the present invention will become more apparent from the following detailed description and the accompanying drawings, in which: While the specification and drawings disclose particular embodiments of the present invention, these represent only some of the embodiments which may employ the principles of the present invention, and it is to be understood that the present invention is not limited to the described embodiments, but rather includes all such modifications, variations, and alternatives which fall within the scope of the appended claims.

[0031] In embodiments of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (Wideband Code Division Multiple Access), HSPA (High-Speed ​​Packet Access), etc.

[0032] Additionally, communications between devices in a communications system may be performed according to any level of communications protocol, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communications protocols.

[0033] In the embodiments of the present invention, the term "network equipment" refers to a device that connects a terminal device to a communication network and provides services to the terminal device in a communication system, for example, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a network gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0034] A base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), etc., and may further include a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). The term "base station" may include some or all of the functions thereof, and each base station can provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or the area it covers, depending on the context in which the term is used. Unless confusion arises, the terms "cell" and "base station" are interchangeable.

[0035] In embodiments of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network and receives services from the network, for example, via network equipment. User equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), station, etc.

[0036] User equipment may include, but is not limited to, cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, mobile devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smart watches, digital cameras, and the like.

[0037] Furthermore, for example, in a scenario such as the Internet of Things (IoT), the user equipment may also be a monitoring or measuring device or apparatus, for example, including but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0038] Furthermore, the term "network side" or "network equipment side" refers to the network side, which may be a base station or may include one or more network equipment as described above. The term "user side" or "terminal side" or "terminal equipment side" refers to the user or terminal side, which may be a UE or may include one or more terminal equipment as described above. Unless otherwise specified, "equipment" herein may refer to network equipment or may also refer to terminal equipment.

[0039] The following describes an example scenario of the present invention, but the present invention is not limited thereto.

[0040] 1 is a diagram showing a communication system in an embodiment of the present invention, taking a terminal device and a network device as an example. As shown in FIG. 1, the communication system 100 may include a first TRP 101, a second TRP 102, and a terminal device 103. Of these, the first TRP 101 and the second TRP 102 may be network devices. For convenience, FIG. 1 illustrates an example in which only two network devices and one terminal device are used, but the embodiment of the present invention is not limited thereto.

[0041] In an embodiment of the present invention, conventional services (services / traffic) or future services can be transmitted between the first TRP 101, the second TRP 102, and the terminal device 103. For example, these services include, but are not limited to, eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), URLLC (Ultra-Reliable and Low-Latency Communication), etc.

[0042] Rel-16 standardizes mTRP-based PDSCH transmission, while Rel-17 standardizes mTRP-based PDCCH, PUSCH, and PUCCH transmission. mTRP transmission includes mTRP transmission based on sDCI (single DCI) and mTRP transmission based on mDCI (multiple DCI). In the case of sDCI mTRP, one DCI schedules the uplink and downlink transmissions of two TRPs, which is more suitable when the backhaul between the TRPs is ideal. In the case of mDCI mTRP, two TRPs schedule the uplink and downlink transmissions of their respective TRPs using two DCIs, which is more suitable when the backhaul between the TRPs is not ideal.

[0043] Taking the terminal device 103 as an example of transmitting a PUSCH in the mTRP scenario, as shown in Figure 1, the terminal device 103 transmits a PUSCH in a PUSCH repetition manner, for example, transmitting to the first TRP 101 in slot 1 and transmitting to the second TRP 102 in slot 2, and the rest can be inferred accordingly.

[0044] In the mTRP scenario, two SRS resource sets are configured in the terminal device, each corresponding to two TRPs. For example, two SRS resource sets are configured in the terminal device. For example, the terminal device 103 is configured with a first SRS resource set (1st SRS resource set) corresponding to the first TRP 101, and the terminal device 103 is configured with a second SRS resource set (2nd SRS resource set) corresponding to the second TRP 102.

[0045] Due to differences in geographical locations of the first TRP 101 and the second TRP 102, the terminal device may transmit PUSCH to the first TRP 101 and / or the second TRP 102 based on transmission parameters such as different precoding matrices, SRS resource indicators (SRIs), power control parameters, etc. The terminal device also obtains transmission parameters for the first TRP 101 and the second TRP 102 based on the first SRS resource set and the second SRS resource set.

[0046] For example, the transmission parameter is SRS resource indicator (SRI). For a dynamic UL grant, two SRI fields in DCI indicate SRS resources in two SRS resource sets, respectively. For a configured grant, two SRIs are configured to two SRS resource sets by RRC. Therefore, the terminal device needs to know the mapping relationship between PUSCH repetitions and SRS resource sets, that is, to know which SRS resource set each PUSCH repetition should be transmitted based on.

[0047] The UL DCI for scheduling a PUSCH may indicate whether the terminal device performs sTRP PUSCH transmission or mTRP PUSCH transmission by using an "SRS resource set indicator" field. For sTRP PUSCH transmission, this field may indicate which of two SRS resource sets the transmission should be based on. For mTRP PUSCH transmission, this field may indicate the mapping order in which the two SRS resource sets are mapped to PUSCH repetitions. For example, by following the order of "first the first SRS resource set, then the second SRS resource set" (represented as #1, #2), the purpose of "first transmitting to the first TRP 101, then transmitting to the second TRP 102" can be realized, as shown in FIG. 1; or by following the order of "first the second SRS resource set, then the first SRS resource set" (represented as #2, #1), the purpose of "first transmitting to the second TRP 102, then transmitting to the first TRP 101" can be realized, that is, the mapping order in FIG. 1 is swapped. When the upper layer parameter "cyclicMapping" is enabled, the PUSCH repetitions are mapped in the order of #1, #2, #1, #2 ...; when the upper layer parameter "sequentialMapping" is enabled, the PUSCH repetitions are mapped in the order of #1, #1, #2, #2 ...

[0048] The unified TCI in Rel-17 only applies to sTRP scenarios. Considering the importance of mTRP, a corresponding unified TCI mechanism needs to be designed for mTRP scenarios. 3GPP is expected to standardize the unified TCI for mTRP in Rel-18. Currently, the unified TCI for mTRP has been confirmed as one of the Rel-18 project contents, but the standardization work for Rel-18 has not yet started. From a functional perspective, the unified TCI for mTRP must be able to both support mTRP PUSCH transmission by indicating the TCI status of two TRPs and support sTRP PUSCH transmission by indicating the TCI status of one TRP.

[0049] Below, a description will be given in conjunction with specific uplink and downlink signaling.

[0050] Figure 2 illustrates a signaling transmission process in an embodiment of the present invention. For a unified TCI, a DL DCI indicates the application time of at least one UL TCI state, such as DL DCI 1 or DL ​​DCI 2 in Figure 2. The UL TCI state may be indicated by a joint DL / UL TCI state or a separate DL / UL TCI state. The terminal device receives DL DCI 1 indicating at least one UL TCI state, where the UL TCI state indicated by DL DCI 1 is different from the UL TCI state indicated by the previous DL DCI (e.g., DL DCI 0, not shown in Figure 2) (including the number of UL TCI states being different). The terminal device sends an ACK (ACK 1) for DL ​​DCI 1 to the network device. DL DCI 1 may be in a DCI format for scheduling PDSCH or in a DCI format without PDSCH scheduling (DCI format without DL assignment). The first slot to apply the UL TCI state indicated by DL DCI 1 is the first slot Y symbols after the last symbol of ACK1, and the start time of this slot is denoted as t1. Suppose DL DCI 2 is the first DL DCI indicated after DL DCI 1, whose UL TCI state is different from the UL TCI state indicated by DL DCI 1. Using a similar method, the first slot to apply the UL TCI state indicated by DL DCI 2 can be determined, and the start time of this slot is denoted as t2. The application time of the UL TCI state indicated by DL DCI 1 (first application time: application time 1) includes all slots between t1 and t2. In other words, the UL TCI state that becomes effective within application time 1 is indicated by DL DCI 1.Similarly, the application time of the UL TCI state indicated by DL DCI 2 (second application time: application time 2) may be represented as all slots between t2 and t3, where t3 corresponds to the first slot applying a UL TCI state different from the UL TCI state indicated by DL DCI 2, and the different UL TCI state is indicated by DL DCI 3 (not shown in FIG. 2 ) located after DL DCI 2. To avoid out-of-order occurrence in downlink HARQ, for DL ​​DCI 2 located after DL DCI 1, its associated ACK 2 should be located after ACK 1 and cannot be located before ACK 1.

[0051] For a PUSCH scheduled by an UL DCI in an sDCI mTRP scenario, a terminal device configured with two SRS resource sets can determine the UL TCI state and SRS resource set used by the PUSCH by the following method: the UL TCI state used by the PUSCH is the UL TCI state within the action time period in which the PUSCH exists (i.e., the latest UL TCI state is used), and the SRS resource set used by the PUSCH is indicated by the SRS resource set indicator field of the UL DCI (i.e., the UL DCI can indicate switching between different PUSCH schemes, for example, switching between an sTRP PUSCH and an mTRP PUSCH). However, when the UL DCI and the PUSCH it schedules are within different action times, the UL TCI state and SRS resource set determined by the above method may conflict with each other, resulting in ambiguity in the use of the UL TCI state and SRS resource set, which may result in PUSCH transmission failure.

[0052] FIG. 3 illustrates the above-mentioned problem. FIG. 3 is a diagram showing another signaling transmission process in an embodiment of the present invention. The same content as in FIG. 2 will not be described here. As shown in FIG. 3, two UL TCI states are scheduled within action time 1 of DL DCI 1, one UL TCI state is scheduled within action time 2 of DL DCI 2, and at least one PUSCH transmission is scheduled by one UL DCI within action time 1, and the UL DCI is within the action time of two UL TCI states (action time 1), and at least one PUSCH is within the action time of one UL TCI state (action time 2). Hereinafter, PUSCH refers to the PUSCH within action time 2. The number of UL TCI states at the scheduling time of the UL DCI is two. The network device cannot predict that the UL TCI state will become one in the future (at time t2). For example, a URLLC task that needs to be scheduled by DL DCI 2 suddenly appears, and DL DCI 2 can indicate an updated UL TCI state accordingly. Therefore, the SRS resource set indicator field of the UL DCI is still determined based on the assumption of two UL TCI states. The SRS resource set indicator field indicates that the terminal device will use two SRS resource sets, and these two sets correspond one-to-one to two UL TCI states. In this case, if the above method is used as is, the following may occur: the PUSCH uses one UL TCI state within action time 2 and uses two SRS resource sets indicated by the UL DCI. In this case, the number of UL TCI states does not match the number of SRS resource sets.Since PUSCH transmission based on one UL TCI state requires only one SRS resource set, on the one hand, the above method may result in incorrect configuration or undefined behavior, and the terminal device may not know how to transmit the PUSCH; on the other hand, the above method may not allow the terminal device and the network device to have the same understanding regarding which SRS resource set the PUSCH transmission is based on, and if the understandings of the two parties are inconsistent, this may result in failure of PUSCH demodulation.

[0053] Therefore, when the UL DCI and its scheduled PUSCH are in different action times, how to determine the UL TCI state and SRS resource set associated with the PUSCH, and how to transmit the PUSCH based on the determined UL TCI state and SRS resource set, is a problem to be solved.

[0054] To address at least one of the above problems, embodiments of the present invention provide a method and apparatus for uplink data transmission and uplink data reception.

[0055] <Example of the first aspect> In an embodiment of the present invention, an uplink data transmission method is provided, which is applied to a terminal device side, and two SRS resource sets are configured in the terminal device.

[0056] 4 is a diagram illustrating an uplink data transmission method according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps (operations): 401: A terminal device receives third downlink control information for scheduling uplink data within a first action time, where at least a portion of the uplink data is within a second action time; and 402: The terminal device determines, according to parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for uplink data within the second operating time.

[0057] Note that the above-mentioned FIG. 4 is for illustrative purposes only and uses a terminal device as an example to explain an embodiment of the present invention, but the present invention is not limited thereto. For example, the execution order of each operation can be appropriately adjusted, some operations can be added or removed, or the targets of the above-mentioned operations can be adjusted. Those skilled in the art can make appropriate modifications based on the above content without being limited to the description of the above-mentioned FIG. 4.

[0058] In some implementations, the terms "TRP" and "SRS resource set" are interchangeable. The terms "TRP" and "CSI-RS resource set" are interchangeable. The terms "corresponding," "associated," and "comprising" are interchangeable, and "uplink TCI state" and "joint TCI state" are interchangeable. The terms "PUSCH", "PUSCH transmission", and "PUSCH transmission" are interchangeable, a "DL TCI state" or a "UL TCI state" may be indicated by a "joint DL / UL TCI state" or a "separate DL / UL TCI state", a "DL TCI state" may be a "DL only TCI state" or a "joint TCI state", a "UL TCI state" may be a "UL only TCI state" or a "joint TCI state", and "TPMI" refers to information indicated by a "Precoding information and number of layers" field or a "Second Precoding information" field in a DCI, and includes precoding matrix information and layer number information, and the above field may be abbreviated as a "TPMI field". Note that the above is merely an example, and embodiments of the present invention are not limited thereto.

[0059] Thus, the terminal device determines related parameters for uplink data transmission within the second action period based on the parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action period, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus preventing uplink data transmission failure due to the ambiguity.

[0060] In some implementations, the terminal device receives first downlink control information corresponding to a first operating time; and receives second downlink control information corresponding to a second operating time within the first operating time.

[0061] For example, the first downlink control information is DL DCI 1 shown in Figure 2, the first action time is the action time of the UL TCI state indicated by DL DCI 1 (e.g., action time 1 (Application time 1)), the second downlink control information is DL DCI 2 shown in Figure 2, and the second action time is the action time of the UL TCI state indicated by DL DCI 2 (e.g., action time 2 (Application time 2)).

[0062] In some implementations, the second downlink control information indicates at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second duration.

[0063] For example, DL DCI 2 shown in FIG. 3 indicates one UL TCI state, its application time is Application time 2, and optionally DL DCI 2 may indicate two UL TCI states (not shown in FIG. 3).

[0064] In some implementations, the third downlink control information may be UL DCI, and may also be referred to as an uplink grant (UL grant).

[0065] For example, the third downlink control information may be the UL DCI shown in Fig. 3. For example, the third downlink control information further includes parameters required for scheduled uplink data, for example, the parameters include at least one of an SRS resource set, an SRS resource, and an uplink precoding index (transmit precoding matrix indicator, TPMI). In some implementations, the parameters are indicated by at least one of an SRS resource set indicator field, an SRI field, and a TPMI field in the third downlink control information.

[0066] In some implementations, the uplink data includes at least one of the following uplink data types: uplink duplication (PUSCH repetition) Type A; uplink duplication (PUSCH repetition) Type B; and multi-panel simultaneous transmission PUSCH.

[0067] In some implementations, in the case of a sDCI mTRP scenario, the PUSCH may be one PUSCH or a PUSCH repetition.

[0068] For example, the specific transmission methods of PUSCH repetition Type A and PUSCH repetition Type B can be referred to the relevant parts of the standard TS 38.214 V17.1.0, and the present invention is not limited thereto.

[0069] In some implementations, the mTRP PUSCH is equivalent to a PUSCH based on two SRS resource sets or a PUSCH based on two UL TCI states.

[0070] FIG. 5 is a diagram illustrating the association relationship of mTRP PUSCH-related parameters in an embodiment of the present invention.

[0071] For example, for an mTRP PUSCH, two TRPs are used. The terminal device performs uplink transmission for the two TRPs. This is illustrated in FIG. 5. The two uplink transmissions may belong to two PUSCH repetitions (corresponding to two RVs (Redundancy Versions)). For example, the terminal device transmits PUSCH repetitions for the two TRPs, i.e., the mTRP PUSCH of Rel-17, in a time division multiplexing manner. Furthermore, the mTRP PUSCH to be standardized in Rel-18 may be referred to as simultaneous multi-panel UL transmission (STxMP), and a terminal device may simultaneously transmit PUSCHs to two TRPs using two panels via frequency division multiplexing, space division multiplexing, or single frequency networking (SFN) (also referred to as multi-panel simultaneous transmission PUSCH). That is, two uplink transmissions may belong to one PUSCH (corresponding to one RV) or two PUSCH repetitions (corresponding to two RVs). For example, the mTRP PUSCH in Rel-18 may be referred to as a PUSCH based on two panels. The present invention may be applied to all of the above-mentioned types of mTRP PUSCH. Figure 5 exemplarily illustrates the association relationship between UL TCI state, panel, uplink transmission, TRP, SRS resource set, SRS resource, and TPMI. For one TRP, it is associated with one SRS resource set, one UL TCI state, one SRS resource, one TPMI, and one uplink transmission. For Rel-18 mTRP PUSCH, one panel can be associated with one TRP, and therefore, one SRS resource set, one UL TCI state, one SRS resource, one TPMI, and one uplink transmission.Based on the above association relationship, one TRP may be equivalent to one SRS resource set, and one panel may be equivalent to one SRS resource set.

[0072] In some embodiments, sTRP PUSCH refers to sTRP PUSCH transmission performed by a terminal device configured with two SRS resource sets, and is equivalent to a PUSCH based on one SRS resource set or a PUSCH based on one UL TCI state.

[0073] According to some embodiments, the terminal device receives a DL DCI indicating one UL TCI state and performs sTRP PUSCH transmission using this UL TCI state.

[0074] FIG. 6 is a diagram illustrating the association relationship of sTRP PUSCH-related parameters in an embodiment of the present invention.

[0075] For the sTRP PUSCH, the terminal device performs uplink transmission for one of two TRPs. Figure 6 exemplarily illustrates this. For a terminal device configured with two SRS resource sets, dynamic switching between the sTRP PUSCH and the mTRP PUSCH can be performed. For example, a UL DCI indicates one or two SRS resource sets, each representing an sTRP PUSCH or an mTRP PUSCH transmission. For example, a DL DCI indicates one or two UL TCI states, each representing an sTRP PUSCH or an mTRP PUSCH transmission. As shown in Figure 6, the terminal device performs uplink transmission for the first TRP and can use the SRS resource set, UL TCI state, SRS resource, and TPMI associated with the first TRP. The terminal device performs uplink transmission for the second TRP and can use the SRS resource set, UL TCI state, SRS resource, and TPMI associated with the second TRP. The uplink transmission may be one PUSCH or a PUSCH repetition.

[0076] FIG. 7 illustrates another signaling transmission process in an embodiment of the present invention.

[0077] The following description will be given using Fig. 7 as an example. Without loss of generality, Fig. 7 only shows action time 1 (first action time), action time 2 (second action time), UL DCI within action time 1, and PUSCH within action time 2.

[0078] For example, two SRS resource sets are configured in a terminal device. During action time 1, the number of active UL TCI states may be one or two. Assuming that the UL TCI states are known, the number of SRS resource sets indicated by the UL DCI may be one or two, each corresponding to one or two UL TCI states. During action time 2, the number of active UL TCI states may be one or two, which differs from the UL TCI state during action time 1. Table 1 below shows all possible combinations of UL TCI states during different action times, including Cases 1 to 4. The UL TCI state during action time 2 differs from the UL TCI state during action time 1. Between action time 1 and action time 2, the number of UL TCI states changes for Cases 1 and 2, while the number of UL TCI states remains unchanged for Cases 3 and 4. The UL DCI instructs the SRS resource set, SRS resource, and TPMI based on the UL TCI state during action time 1.

[0079] Table 1: Possible combinations of UL TCI states within different durations of action.

[0080] [Table 1] In some implementations, for the uplink data within the first action time and / or the uplink data within the second action time, at least the following information needs to be determined: whether uplink data transmission is based on sTPR PUSCH or mTRP PUSCH; the number of UL TCI states used by the uplink data and the specific UL TCI states; and specific parameters for transmitting the uplink data, such as at least one of an SRS resource set, an SRS resource, and an uplink precoding index (transmit precoding matrix indicator, TPMI).

[0081] In some implementations, some or all of the at least one UL TCI state corresponding to the second operating time are used to transmit uplink data during the second operating time.

[0082] In some implementations, if the parameters indicated by the third downlink control information include one SRS resource set, uplink data transmission (sTRP PUSCH transmission) based on a single transmission and reception point (sTRP) is performed for uplink data within the second action period; if the parameters include multiple SRS resource sets, uplink data transmission (mTRP PUSCH transmission) based on multiple transmission and reception points (mTRP) is performed for uplink data within the second action period.

[0083] For example, the terminal device determines to transmit an sTRP PUSCH or an mTRP PUSCH within the second action time based on at least one of the SRS resource set, the SRS resource, and the TPMI indicated by the UL DCI.

[0084] For example, if the UL DCI indicates two SRS resource sets, two SRS resources, and two TPMIs, the terminal device performs mTRP PUSCH transmission within the second action time, and if the UL DCI indicates one SRS resource set, one SRS resource, and one TPMI, the terminal device performs sTRP PUSCH transmission within the second action time.

[0085] For example, as shown in Case 1, the number of UL TCI states changes from two in action time 1 to one in action time 2, but because the UL DCI instructs mTRP PUSCH transmission based on action time 1, the terminal device continues to perform mTRP PUSCH transmission and does not switch to sTRP PUSCH transmission during action time 2. As shown in Case 2, the number of UL TCI states changes from one in action time 1 to two in action time 2, but because the UL DCI instructs sTRP PUSCH transmission based on action time 1, the terminal device continues to perform sTRP PUSCH transmission and does not switch to mTRP PUSCH transmission.

[0086] In some implementations, the uplink data within the second operating time is transmitted using an uplink transmission configuration indication state (UL TCI state) associated with a parameter indicated by the third downlink control information among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time, or using a predefined uplink transmission configuration indication state (UL TCI state) among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time.

[0087] In some implementations, the predefined uplink transmission configuration indication state (UL TCI state) is one uplink transmission configuration indication state (UL TCI state) at a specific (predetermined) position among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time.

[0088] According to some embodiments, the terminal device uses some or all of the UL TCI state during the second operation time.

[0089] For example, in Case 2, the terminal device determines to transmit sTRP PUSCH within action time 2 based on the SRS resource set, SRS resource, and TPMI indicated by the UL DCI, and there are two UL TCI states within action time 2, and the terminal device transmits sTRP PUSCH using one of the UL TCI states.

[0090] For example, in the case of Case 3 and Case 4, the number of UL TCI states in action time 1 and action time 2 is the same, and regardless of whether it is based on UL DCI or the UL TCI state in action time 2, the PUSCH transmission method (sTRP PUSCH or mTRP PUSCH) determined by the terminal device in action time 2 is the same as the PUSCH transmission method in action time 1, so all UL TCI states in action time 2 are used.

[0091] According to some embodiments, the terminal device uses a portion of the UL TCI state during the second operation time, and the terminal device determines the UL TCI state based on one of the following: The UL TCI state associated with the SRS resource set; and This is the default (predefined) UL TCI state.

[0092] For example, there are two UL TCI states within the second action time, and the terminal equipment determines to use the second SRS resource set within the second action time, for example, the UL DCI indicates the "second SRS resource set", and the "second SRS resource set" is associated with the second UL TCI state, in this case, the UL TCI state associated with the "second SRS resource set", i.e., the second UL TCI state, is used.

[0093] For example, the terminal equipment uses the default (predefined) UL TCI state, i.e., the first of the two UL TCI states.

[0094] In some implementations, at least one of the following information among the parameters is used to transmit uplink data within the second operating time: SRS resource set; SRS resource; and TPMI.

[0095] For example, in the cases of Case 1 to Case 4, how to use at least one of the following information among the parameters, i.e., SRS resource set; SRS resource; and TPMI, to transmit uplink data within the second action time will be described later, and for example, refer to Method 1 in Figures 8 to 11.

[0096] According to some embodiments, at least one of the SRS resource set, the SRS resource, and the TPMI is indicated by an SRS resource set indicator field of the UL DCI.

[0097] For example, the SRS resource set indicator field of the UL DCI includes two bits and indicates the SRS resource set, SRS resource, and TPMI to be used according to the following Table 2. The SRS resource set indicator field indicates the SRS resource set to be used and its associated SRI and TPMI fields, and the SRI and TPMI fields indicate the SRS resource and TPMI, respectively.

[0098] Table 2: SRS resource set indicator fields.

[0099] [Table 2] In some implementations, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second application time includes one uplink transmission configuration indication state (UL TCI state), uplink data transmission (sTRP PUSCH) based on a single transmission and reception point (sTRP) is performed for uplink data within the second application time; and if the uplink transmission configuration indication state corresponding to the second application time includes multiple uplink transmission configuration indication states (UL TCI states), uplink data transmission (mTRP PUSCH) based on multiple transmission and reception points (mTRP) is performed for uplink data within the second application time.

[0100] In some implementations, at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time is used to transmit uplink data during the second operating time.

[0101] According to some embodiments, the terminal device determines to perform sTRP PUSCH transmission or mTRP PUSCH transmission within the second operating time based on the UL TCI state within the second operating time.

[0102] For example, if there are two UL TCI states within the second action time, the terminal device performs mTRP PUSCH transmission, and if there is one UL TCI state within the second action time, the terminal device performs sTRP PUSCH transmission.

[0103] For example, as shown in Case 1, when the number of UL TCI states changes from two in action time 1 to one in action time 2, the terminal device switches to sTRP PUSCH transmission within action time 2. As shown in Case 2, when the number of UL TCI states changes from one in action time 1 to two in action time 2, the terminal device switches to mTRP PUSCH transmission within action time 2.

[0104] Hereinafter, first, a brief introduction will be given to "at least one of the following predefined information included in the parameters indicated by the third downlink control information, i.e., SRS resource set; SRS resource; or TPMI." In the cases of Case 1 to Case 4, how to transmit uplink data within the second action time using at least one of the following predefined information included in the parameters indicated by the third downlink control information, i.e., SRS resource set; SRS resource; or TPMI, will be described later, and for example, methods other than Method 1 in FIGS. 8 to 11 may be referred to.

[0105] In some implementations, the parameters indicated by the third downlink control information include and / or at least one of the following predefined information: SRS resource set; SRS resource; and TPMI, to transmit uplink data within the second action time.

[0106] In some implementations, at least one of the predefined information, i.e., SRS resource set; SRS resource; and TPMI, is determined based on one of the following: Two SRS resource sets have been configured; One SRS resource set at a specific location out of two configured SRS resource sets; One SRS resource at a specific location among at least one SRS resource in one SRS resource set; Among at least one SRS resource in one SRS resource set, the first SRS resource with the smallest number of SRS ports; and It is one TPMI at a specific location among at least one TPMI available for one SRS resource.

[0107] For example, the SRS resource set, SRS resource, or TPMI used by the terminal device during the second operation time is determined based on one of the following: SRS resource set, SRS resource or TPMI indicated by UL DCI; The default (predefined) SRS resource set, an SRS resource, or a TPMI.

[0108] For example, the terminal device performs sTRP PUSCH transmission or mTRP PUSCH transmission during the second operating time based on the UL TCI state during the second operating time, and determines to use the SRS resource set, SRS resource, and TPMI indicated by the UL DCI during the second operating time.

[0109] For example, the terminal device performs sTRP PUSCH transmission or mTRP PUSCH transmission during the second operating time based on the UL TCI state during the second operating time, and determines to use the default (predefined) SRS resource set, SRS resource, and TPMI during the second operating time.

[0110] For example, the terminal device determines one or two SRS resource sets to be used within the second action time, e.g., one SRS resource set is used for one UL TCI state, and two SRS resource sets are used for two UL TCI states. Note that this is only a brief description, and for how to determine the above-mentioned SRS resource sets, please refer to the methods in Cases 1 to 4 below. For any one SRS resource set, if the UL DCI indicates the SRS resource and TPMI associated with it, the SRS resource and TPMI indicated by the UL DCI are used, and if the UL DCI does not indicate the SRS resource and TPMI associated with it, default (predefined) SRS resource and TPMI are used.

[0111] According to some embodiments, two default (predefined) SRS resource sets are the two configured SRS resource sets.

[0112] For example, the terminal device transmits an mTRP PUSCH within the second action time and uses two default (predefined) SRS resource sets, which are two SRS resource sets for transmitting an mTRP PUSCH configured by RRC signaling.

[0113] According to some embodiments, one default (predefined) SRS resource set is the first or second SRS resource set of two configured SRS resource sets.

[0114] For example, the terminal device transmits an sTRP PUSCH within the second action time and uses one default (predefined) SRS resource set, which is the first of two configured SRS resource sets.

[0115] According to some embodiments, one default (predefined) SRS resource is the first SRS resource in the SRS resource set.

[0116] For example, the terminal device performs sTRP PUSCH transmission or mTRP PUSCH transmission based on one SRS resource set or two SRS resource sets within the second action time, and uses one default (predefined) SRS resource in each SRS resource set, where the default (predefined) SRS resource is the first SRS resource in the SRS resource set in which it resides.

[0117] According to some embodiments, one default (predefined) SRS resource is the first SRS resource in the SRS resource set that has the smallest SRS port number.

[0118] For example, the terminal device performs sTRP PUSCH transmission or mTRP PUSCH transmission based on one SRS resource set or two SRS resource sets within the second action time, and uses one default (predefined) SRS resource in each SRS resource set, where the default (predefined) SRS resource is the SRS resource with the smallest number of SRS ports in the SRS resource set in which it is located, and when there are multiple SRS resources with the smallest number of SRS ports, the default (predefined) SRS resource is the first SRS resource among the multiple SRS resources with the smallest number of SRS ports.

[0119] According to some embodiments, one default (predefined) TPMI is the first TPMI available in the SRS resource.

[0120] For example, the terminal device performs sTRP PUSCH transmission or mTRP PUSCH transmission based on one SRS resource or two SRS resources within the second action time, and each SRS resource is associated with one default (predefined) TPMI. Based on the number of SRS ports of the SRS resource and other configured parameters, multiple available TPMIs (including the number of layers and precoding matrix information) of the SRS resource can be determined, and the default (predefined) TPMI is the first TPMI of all available TPMIs.

[0121] According to some embodiments, uplink data during the second operating time is transmitted using at least one of the following information associated with the uplink transmission configuration indication state (UL TCI state) during the second operating time: SRS resource set; SRS resource; and TPMI.

[0122] For example, since there is one UL TCI state (UL TCI state X) within the second operating time, the terminal device determines to transmit an sTRP PUSCH within the second operating time. The terminal device determines one SRS resource set associated with the UL TCI state X. For example, if a source reference signal included in the UL TCI state X is one SRS resource belonging to a certain SRS resource set (SRS resource set A), the SRS resource set associated with the UL TCI state X is SRS resource set A. Also, for example, if the UL DCI has instructed the terminal device to transmit a PUSCH using SRS resource set A within the operating time of the UL TCI state X, the SRS resource set associated with the UL TCI state X is SRS resource set A. The terminal device transmits a PUSCH using SRS resource set A. The SRS resource and TPMI used by the terminal device can be obtained by any one of the methods described above. For example, since there are two UL TCI states (UL TCI state 1-2 and UL TCI state 2-2) within the second operating time, the terminal device determines to transmit an mTRP PUSCH within the second operating time. Since SRS resource set 1 and SRS resource set 2 are associated with UL TCI state 1-2 and UL TCI state 2-2, respectively, the terminal device transmits a PUSCH using SRS resource set 1 and SRS resource set 2. The SRS resource and TPMI used by the terminal device can be obtained by any one of the methods described above.

[0123] The determination of uplink data-related parameters for each case will be described below using examples.

[0124] The methods for determining the UL TCI state, SRS resource set, SRS resource, and TPMI for Case 1 to Case 4 may be any combination of the above methods, which will be described below as an example.

[0125] Case 1: There are two UL TCI states within action time 1, the UL DCI indicates two SRS resource sets, and there is one UL TCI state within action time 2.

[0126] 8 is a diagram illustrating an example of a method for determining uplink data-related parameters in Case 1 according to an embodiment of the present invention. FIG. 8 exemplarily illustrates a method for determining a UL TCI state, an SRS resource set, an SRS resource, and a TPMI for a PUSCH within Action Time 2 in Case 1.

[0127] According to some embodiments, when there is one UL TCI state within the second action time, the terminal device performs mTRP PUSCH transmission within the second action time, the UL TCI state associated with the first SRS resource set is one UL TCI state within the second action time, and the UL TCI state associated with the second SRS resource set is one UL TCI state within the second action time.

[0128] According to some embodiments, the terminal device performs mTRP PUSCH transmission based on two SRS resource sets according to parameters indicated by the third downlink control information within the second operating time, and there is one UL TCI state within the second operating time, in which case the one UL TCI state is associated with the two SRS resource sets.

[0129] In the case of method 1, during action time 2, the PUSCH uses two SRS resource sets, two SRS resources, and two TPMIs indicated by the UL DCI, i.e., the same as action time 1, and the PUSCH uses one UL TCI state during action time 2, i.e., UL TCI state 1-2 (e.g., indicated by DL DCI 2 in FIG. 3), and the UE considers that the two UL TCI states associated with the two SRS resource sets are the same and are both UL TCI states 1-2. Although the number of UL TCI states changes from two to one from action time 1 to action time 2, the UE does not switch to sTRP PUSCH transmission during action time 2, but still transmits mTRP PUSCH, and simply considers that the two UL TCI states of the mTRP PUSCH are the same and are both UL TCI states 1-2.

[0130] According to some embodiments, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time includes one uplink transmission configuration indication state (UL TCI state), the terminal device performs sTRP PUSCH transmission within the second operation time, and transmits uplink data within the second operation time using at least one of the following information included in the parameters indicated by the third downlink control information (i.e., SRS resource set; SRS resource; or TPMI):

[0131] In the case of method 2, during action time 2, the PUSCH uses one UL TCI state within action time 2, i.e., UL TCI state 1-2 (for example, indicated by DL DCI 2 in Figure 3), and the terminal device considers it as switching to sTRP PUSCH transmission, and the PUSCH uses one default (predefined) SRS resource set (for example, the first SRS resource set), i.e., SRS resource set 1, and since one SRS field of the UL DCI indicates an SRS resource in SRS resource set 1, i.e., SRS resource 1, the PUSCH uses SRS resource 1 indicated by the UL DCI, and since one TPMI field of the UL DCI indicates the TPMI associated with SRS resource 1, i.e., TPMI 1, the PUSCH uses TPMI 1 indicated by the UL DCI. Similarly, the above-mentioned default (predefined) SRS resource set may be SRS resource set 2, and accordingly, the PUSCH uses SRS resource 2 and TPMI 2, which are not shown for convenience. Since the number of UL TCI states changes from two to one from action time 1 to action time 2, the terminal device switches to sTRP PUSCH transmission within action time 2, and the SRS resource set used is one default (predefined) SRS resource set (SRS resource set 1 or SRS resource set 2), and the SRS resource and TPMI used are the SRS resource and TPMI associated with the SRS resource set indicated by the UL DCI.

[0132] According to some embodiments, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time includes one uplink transmission configuration indication state (UL TCI state), the terminal device performs sTRP PUSCH transmission within the second operation time and transmits uplink data within the second operation time using at least one of the following predefined information (i.e., SRS resource set; SRS resource; or TPMI):

[0133] In the case of Method 3, it is determined that PUSCH uses UL TCI state 1-2 and SRS resource set 1 based on the same method as Method 2, and the terminal device regards it as switching to sTRP PUSCH transmission, and PUSCH uses one default (predefined) SRS resource (e.g., the first SRS resource) in SRS resource set 1, and PUSCH uses one default (predefined) TPMI. For example, the default (predefined) TPMI may be obtained in the following manner: the SRS port number of the SRS resource is the antenna port number, and an available TPMI of the SRS resource can be obtained based on the antenna port number, where the TPMI includes a precoding matrix and a layer number determined by a TPMI index, and PUSCH uses the first TPMI of the available TPMIs. Take Table 7.3.1.1.2-2 of the standard TS 38.214 V17.1.0 as an example. This table shows all available TPMIs for four antenna ports under several settings, where each row corresponds to one available TPMI. "PUSCH uses the first TPMI among the available TPMIs" is equivalent to "PUSCH uses the TPMI corresponding to the first row", i.e., "1 layer:TPMI=0".

[0134] Table 7.3.1.1.2-2: Precoding information and number of layers, for 4 antenna ports, if transform precoder is disabled, maxRank=2 or 3 or 4, and ul-FullPowerTransmission is not configured or configured to fullpowerMode2 or configured to fullpower.

[0135] [Table 3] In the case of Method 4, it is determined that the PUSCH uses UL TCI state 1-2 and SRS resource set 1 according to the same method as Method 2, and the terminal device regards this as switching to sTRP PUSCH transmission. The PUSCH uses one default (predefined) SRS resource in SRS resource set 1, and the PUSCH uses one default (predefined) TPMI. The default (predefined) SRS resource can be obtained in the following manner: multiple SRS resources included in SRS resource set 1 may have different SRS port numbers, and the default (predefined) SRS resource is the SRS resource with the smallest number of SRS ports in SRS resource set 1. If there are multiple SRS resources with the smallest number of SRS ports, the first SRS resource among them is selected. Here, the determination of the SRS resource is mainly based on robustness, and allowing the terminal device to use the simplest PUSCH transmission method possible within action time 2 is beneficial to ensuring transmission robustness. The default (predefined) TPMI may be obtained in the same way as in Method 3, and the first TPMI usually corresponds to the smallest number of layers, e.g., 1 layer in the table above, and is similarly advantageous for ensuring transmission robustness.

[0136] According to some embodiments, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time includes one uplink transmission configuration indication state (UL TCI state), the terminal device performs sTRP PUSCH transmission within the second operating time and transmits uplink data within the second operating time using at least one of the following information associated with the one uplink transmission configuration indication state (UL TCI state) (i.e., SRS resource set; SRS resource; or TPMI):

[0137] In the case of method 5 or method 6, during action time 2, the PUSCH uses one UL TCI state within action time 2, i.e., UL TCI state 1-2, and the terminal device considers it as switching to sTRP PUSCH transmission, and the terminal device determines one SRS resource set associated with UL TCI state 1-2, for example, the source reference signal included in UL TCI state 1-2 is one SRS resource belonging to SRS resource set 2, in this case, the SRS resource set associated with UL TCI state 1-2 is SRS resource set 2, and the terminal device transmits PUSCH using SRS resource set 2. For determining the SRS resource and TPMI, any one of the above-mentioned methods, for example, method 5, may be used, in which the PUSCH uses one default (predefined) SRS resource (e.g., the first SRS resource) in SRS resource set 2 and the PUSCH uses one default (predefined) TPMI (e.g., the first TPMI); or, for example, method 6 may be used, in which, since the UL DCI has indicated the SRS resource and TPMI associated with SRS resource set 2, the PUSCH uses SRS resource 2 and TPMI2 associated with SRS resource set 2 indicated by the UL DCI.

[0138] Case 2: There is one UL TCI state within action time 1, the UL DCI indicates one SRS resource set, and there are two UL TCI states within action time 2.

[0139] 9 is a diagram illustrating an example of a method for determining uplink data-related parameters in Case 2 according to an embodiment of the present invention. Taking a case where UL DCI indicates SRS resource set 2, SRS resource 2, and TPMI 2 as an example, FIG. 9 exemplarily illustrates a method for determining a UL TCI state, SRS resource set, SRS resource, and TPMI for PUSCH within action time 2 in Case 2.

[0140] According to some embodiments, when there are two UL TCI states within the second operating time, the terminal device performs sTRP PUSCH transmission within the second operating time based on parameters indicated by the third downlink control information, and transmits uplink data within the second operating time using an uplink transmission configuration indication state (UL TCI state) associated with the parameters indicated by the third downlink control information, among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time.

[0141] In the case of method 1, during action time 2, PUSCH uses one SRS resource set, one SRS resource, and one TPMI indicated by UL DCI, i.e., the same as action time 1. Taking SRS resource set 2, SRS resource 2, and TPMI 2 as an example in the figure, PUSCH uses one UL TCI state of the two UL TCI states during action time 2, and this UL TCI state is the UL TCI state associated with SRS resource set 2 indicated by UL DCI, i.e., UL TCI state 2-2, and the terminal device is deemed to perform sTRP PUSCH transmission. Although the number of UL TCI states changes from one to two from action time 1 to action time 2, the terminal device does not switch to mTRP PUSCH transmission during action time 2 and continues to transmit sTRP PUSCH. Similarly, the UL DCI may also indicate SRS resource set 1, SRS resource 1 and TPMI 1, and accordingly the PUSCH uses UL TCI state 1-2, which is not shown in the figure for convenience.

[0142] According to some embodiments, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time includes two uplink transmission configuration indication states (UL TCI states), the terminal device performs mTRP PUSCH transmission within the second operation time, and transmits uplink data within the second operation time using at least one of the following predefined information included in the parameters indicated by the third downlink control information (i.e., SRS resource set; SRS resource; or TPMI):

[0143] In the case of method 2, within action time 2, the PUSCH uses two UL TCI states within action time 2, i.e., UL TCI state 1-2 and UL TCI state 2-2. The terminal device considers this as switching to mTRP PUSCH transmission. Since each UL TCI state needs to be associated with one SRS resource set, the terminal device uses all two SRS resource sets. The PUSCH uses two SRS resource sets, i.e., SRS resource set 1 and SRS resource set 2. For the SRS resources associated with SRS resource set 2, one SRS field in the UL DCI uses the SRS resource in SRS resource set 2, i.e., SRS resource 2. Therefore, the PUSCH uses the SRS resource 2 indicated by the UL DCI. For the SRS resources associated with SRS resource set 1, the UL DCI does not indicate this, so the PUSCH uses one default (predefined) SRS resource (for example, the first SRS resource) in SRS resource set 1. For the TPMI associated with SRS resource set 2, one TPMI field in the UL DCI indicates the TPMI associated with SRS resource 2, i.e., TPMI 2, so the PUSCH uses TPMI 2 indicated by the UL DCI, and for the TPMI associated with SRS resource set 1, the UL DCI does not indicate it, so the PUSCH uses one default (predefined) TPMI. For example, the default (predefined) TPMI can be obtained in the following manner: since the SRS resource associated with SRS resource set 1 is obtained, the default (predefined) TPMI is the first TPMI among the available TPMIs of the SRS resource.From action time 1 to action time 2, the number of UL TCI states changes from one to two, so the terminal device switches to mTRP PUSCH transmission within action time 2, and for the SRS resource set indicated by the UL DCI, it uses the SRS resource and TPMI indicated by the UL DCI, and for the SRS resource set not indicated by the UL DCI, it uses the default (predefined) SRS resource and TPMI.

[0144] Method 3 differs from Method 2 in how one default (predefined) SRS resource and one default (predefined) TPMI are determined for SRS resource set 1. In Method 3, the default (predefined) SRS resource is the first SRS resource (denoted as SRS resource F) with the smallest number of SRS ports in SRS resource set 1, and the default (predefined) TPMI is the first TPMI among the available TPMIs of SRS resource F.

[0145] According to some embodiments, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time includes two uplink transmission configuration indication states (UL TCI states), the terminal device performs mTRP PUSCH transmission within the second operating time and transmits uplink data within the second operating time using at least one of the following predefined information (i.e., SRS resource set; SRS resource; or TPMI):

[0146] In the case of method 4, during action time 2, the PUSCH uses two UL TCI states within action time 2, i.e., UL TCI state 1-2 and UL TCI state 2-2, and the terminal device considers it as switching to mTRP PUSCH transmission, and the PUSCH uses two SRS resource sets, i.e., SRS resource set 1 and SRS resource set 2, and the terminal device determines two default (predefined) SRS resources and two default (predefined) TPMIs for the two SRS resource sets. For example, for each SRS resource set, the PUSCH uses the first SRS resource in the SRS resource set, and for each SRS resource, the PUSCH uses the first TPMI of the available TPMIs of the SRS resource.

[0147] Method 5 differs from Method 4 in how two default (predefined) SRS resources and two default (predefined) TPMIs are determined for two SRS resource sets. In Method 5, for each SRS resource set, the PUSCH uses the first SRS resource with the smallest number of SRS ports in the SRS resource set, and for each SRS resource, the PUSCH uses the first TPMI among the available TPMIs of the SRS resource.

[0148] According to some embodiments, when the uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time includes two uplink transmission configuration indication states (UL TCI states), the terminal device performs mTRP PUSCH transmission within the second operation time and transmits uplink data within the second operation time using at least one of the following information associated with the two uplink transmission configuration indication states (UL TCI states) (i.e., SRS resource set; SRS resource; or TPMI):

[0149] In the case of Method 6, in Action Time 2, the PUSCH uses two UL TCI states within Action Time 2, and the terminal device considers it as switching to mTRP PUSCH transmission. Since the SRS resource sets associated with the two UL TCI states are SRS resource set 1 and SRS resource set 2, the terminal device uses these two SRS resource sets. The terminal device determines the SRS resource and TPMI for each SRS resource set and may use any one of the methods described above, so Method 6 is equivalent to Method 4 or Method 5. For example, FIG. 9 shows that Method 6 uses the method of determining the SRS resource and TPMI for each SRS resource set in Method 5, or Method 6 may use the method of determining the SRS resource and TPMI for each SRS resource set in Method 4, and an exhaustive list will be omitted here.

[0150] Case 3: There are two UL TCI states within action time 1, the UL DCI indicates two SRS resource sets, and there are two UL TCI states within action time 2.

[0151] 10 is a diagram illustrating an example of a method for determining uplink data-related parameters in Case 3 according to an embodiment of the present invention. FIG. 10 exemplarily illustrates a method for determining a UL TCI state, an SRS resource set, an SRS resource, and a TPMI for a PUSCH within Action Time 2 in Case 3.

[0152] According to some embodiments, when there are two UL TCI states within the second action time, the terminal device performs mTRP PUSCH transmission within the second action time based on parameters indicated by the third downlink control information, and transmits uplink data within the second action time using an uplink transmission configuration indication state (UL TCI state) associated with the parameters indicated by the third downlink control information, among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time.

[0153] In the case of method 1, during action time 2, the PUSCH uses two SRS resource sets, two SRS resources, and two TPMIs indicated by the UL DCI, i.e., the same as action time 1, and the terminal device is assumed to perform mTRP PUSCH transmission, and the PUSCH uses two UL TCI states associated with the two SRS resource sets within action time 2, i.e., UL TCI state 1-2 and UL TCI state 2-2 associated with SRS resource set 1 and SRS resource set 2, respectively.

[0154] According to some embodiments, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time includes two uplink transmission configuration indication states (UL TCI states), the terminal device performs mTRP PUSCH transmission within the second operating time and transmits uplink data within the second operating time using at least one of the following predefined information (i.e., SRS resource set; SRS resource; or TPMI):

[0155] In Method 2, the PUSCH uses two UL TCI states within Action Time 2. Because each UL TCI state needs to be associated with one SRS resource set, the terminal device uses all two SRS resource sets. The terminal device determines two default (predefined) SRS resources and two default (predefined) TPMIs for the two SRS resource sets. For example, for each SRS resource set, the PUSCH uses the first SRS resource in the SRS resource set, and for each SRS resource, the PUSCH uses the first TPMI of the available TPMIs of the SRS resource.

[0156] Method 3 differs from Method 2 in how two default (predefined) SRS resources and two default (predefined) TPMIs are determined for two SRS resource sets. In Method 3, for each SRS resource set, the PUSCH uses the first SRS resource with the smallest number of SRS ports in the SRS resource set, and for each SRS resource, the PUSCH uses the first TPMI among the available TPMIs of the SRS resource.

[0157] According to some embodiments, when the uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time includes two uplink transmission configuration indication states (UL TCI states), the terminal device performs mTRP PUSCH transmission within the second operation time and transmits uplink data within the second operation time using at least one of the following information associated with the two uplink transmission configuration indication states (UL TCI states) (i.e., SRS resource set; SRS resource; or TPMI):

[0158] In the case of Method 4, within Action Time 2, the PUSCH uses two UL TCI states within Action Time 2, and the terminal device considers it as switching to mTRP PUSCH transmission. Since the SRS resource sets associated with the two UL TCI states are SRS resource set 1 and SRS resource set 2, the terminal device uses these two SRS resource sets. The terminal device determines the SRS resource and TPMI for each SRS resource set and may use any one of the methods described above, so Method 4 may be equivalent to Method 2 or Method 3. For example, FIG. 10 shows that Method 4 uses the method of determining the SRS resource and TPMI for each SRS resource set in Method 3, or Method 4 can also use the method of confirming the SRS resource and TPMI for each SRS resource set in Method 2, and a comprehensive list will not be provided here.

[0159] Case 4: There is one UL TCI state in action time 1, the UL DCI indicates one SRS resource set, and there is one UL TCI state in action time 2.

[0160] 11 is a diagram illustrating an example of a method for determining uplink data-related parameters in Case 4 according to an embodiment of the present invention. Taking an example in which the UL DCI indicates SRS resource set 2, SRS resource 2, and TPMI 2, FIG. 11 exemplarily illustrates a method for determining the UL TCI state, SRS resource set, SRS resource, and TPMI for PUSCH within action time 2 in Case 4.

[0161] According to some embodiments, if there is one UL TCI state within the second action time, the terminal device performs sTRP PUSCH transmission according to parameters indicated by the third downlink control information within the second action time, and transmits uplink data within the second action time using the one uplink transmission configuration indication state (UL TCI state). In the case of method 1, in action time 2, the PUSCH uses one SRS resource set, one SRS resource, and one TPMI indicated by the UL DCI, that is, the same as action time 1, and the terminal device is deemed to perform sTRP PUSCH transmission. Since there is only one UL TCI state within action time 2, i.e., UL TCI state 1-2, the terminal device transmits the PUSCH using this UL TCI state.

[0162] According to some embodiments, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time includes one uplink transmission configuration indication state (UL TCI state), the terminal device performs sTRP PUSCH transmission within the second operating time and transmits uplink data within the second operating time using at least one of the following predefined information (i.e., SRS resource set; SRS resource; or TPMI):

[0163] In the case of Method 2, the PUSCH transmits the sTRP PUSCH using one UL TCI state within Action Time 2, and the terminal device determines one default (predefined) SRS resource set, one default (predefined) SRS resource, and one default (predefined) TPMI. For example, the PUSCH uses the first SRS resource set, i.e., SRS resource set 1, the first SRS resource in SRS resource set 1 (referred to as SRS resource F), and the first TPMI among the available TPMIs of SRS resource F.

[0164] Method 3 differs from Method 2 in how one default (predefined) SRS resource and one default (predefined) TPMI are determined. In Method 3, PUSCH uses the first SRS resource with the smallest number of SRS ports in SRS resource set 1, and uses the first TPMI among the available TPMIs of that SRS resource.

[0165] According to some embodiments, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time includes one uplink transmission configuration indication state (UL TCI state), the terminal device performs sTRP PUSCH transmission within the second operating time and transmits uplink data within the second operating time using at least one of the following information associated with the one uplink transmission configuration indication state (UL TCI state) (i.e., SRS resource set; SRS resource; or TPMI):

[0166] In the case of method 4, within action time 2, the PUSCH uses one UL TCI state within action time 2, i.e., UL TCI state 1-2, and the terminal device considers it as switching to sTRP PUSCH transmission, and the terminal device determines one SRS resource set associated with UL TCI state 1-2. For example, the source reference signal included in UL TCI state 1-2 is one SRS resource belonging to SRS resource set 1. In this case, the SRS resource set associated with UL TCI state 1-2 is SRS resource set 1, and the terminal device transmits PUSCH using SRS resource set 1. Since any one of the above-mentioned methods can be used to determine the SRS resource and TPMI, method 4 is equivalent to method 2 or method 3. For example, FIG. 11 shows that method 4 uses the method of determining the SRS resource and TPMI in method 3, or method 4 can also use the method of determining the SRS resource and TPMI in method 2, and a comprehensive list is omitted here.

[0167] The above description has been given taking codebook-based PUSCH transmission as an example. Hereinafter, non-codebook-based PUSCH transmission will be described.

[0168] For non-codebook based PUSCH, the TPMI does not need to be indicated, so the TPMI field does not exist in the UL DCI, the number of SRS ports for all SRS resources in one SRS resource set is 1, and the "first SRS resource in an SRS resource set" is equivalent to the "first SRS resource in an SRS resource set with the smallest number of SRS ports."

[0169] In some implementations, for non-codebook-based PUSCH transmission, related parameters can still be determined based on the methods described in Figures 8 to 11. For example, by deleting the row in Figures 8 to 11 where TPMI exists and the column in Figures 8 to 11 where "the first SRS resource with the smallest number of SRS ports" exists, a method suitable for non-codebook-based PUSCH transmission can be obtained, and detailed description thereof will be omitted here.

[0170] In some implementations, some or all of the UL TCI states among at least one UL TCI state corresponding to the first operating time are used to transmit uplink data during the second operating time.

[0171] In some implementations, among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the first operation time, an uplink transmission configuration indication state (UL TCI state) associated with a parameter indicated by the third downlink control information is used.

[0172] For example, the terminal device determines the UL TCI state within the second operation time based on the UL TCI state indicated by the first downlink control information, the terminal device determines PUSCH transmission-related parameters within the second operation time based on parameters indicated by the third downlink control information, and the terminal device determines whether to transmit an sTRP PUSCH or an mTRP PUSCH based on the number of UL TCI states indicated by the first downlink control information or parameters indicated by the third downlink control information, for example, the number of SRS resource sets.

[0173] For example, even if there is an updated UL TCI state within the second action period (e.g., DL DCI 2 in Figure 3 indicates an updated UL TCI state), the terminal device does not use the updated UL TCI state and still transmits PUSCH in the same manner as when the UL DCI and PUSCH are in the first action period, i.e., ignores the existence of the second action period.

[0174] For example, assuming that DL DCI 1 in Figure 3 indicates UL TCI state 1-1, and uplink data is transmitted using UL TCI state 1-1 within the second action time and DL DCI 1 indicates UL TCI state 1-1, the UL DCI indicates SRS resource set 1 corresponding to UL TCI state 1-1, the terminal device transmits sTRP PUSCH, and transmits sTRP PUSCH based on at least one of SRS resource set 1, SRS resource 1, or TPMI 1 indicated by the UL DCI, and when DL DCI 1 indicates two UL TCI states, the uplink data transmission method is the same as the method described above, and detailed description thereof is omitted here.

[0175] After the above PUSCH transmission related parameters are determined, how to transmit the PUSCH will be described below.

[0176] In some implementations, for at least one uplink repetition (PUSCH repetition) spanning a first duration and a second duration, uplink data within the second duration starts from a first uplink repetition (PUSCH repetition) after a start time of the second duration, and the uplink repetition (PUSCH repetition) includes at least one of a nominal repetition, an actual repetition, a symbol, and a slot.

[0177] In some implementations, for a PUSCH repetition spanning at least two durations, from the first nominal repetition after the start time of the second duration, the PUSCH uses the UL TCI state, SRS resource set, SRS resource, and TPMI within that duration.

[0178] In some implementations, from the first uplink repetition (PUSCH repetition) after the start time of the second operating period, at least one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set for transmitting uplink data is associated or mapped to K uplink repetitions (PUSCH repetitions), where the start times of the K uplink repetitions (PUSCH repetitions) are within the second operating period. For example, the use of the UL TCI state, SRS resource set, SRS resource, and TPMI continues within the current operating period and stops at the first nominal repetition after the start time of the next operating period. From the nominal repetition, the PUSCH uses the UL TCI state, SRS resource set, SRS resource, and TPMI within the next operating period, and others can be inferred accordingly.

[0179] 12 is a diagram illustrating PUSCH transmission in an embodiment of the present invention. For example, for PUSCH repetition type B, a PUSCH repetition spans action time 1 and action time 2. The start time of action time 2 is t2, and one nominal repetition (nominal repetition j) spans t2, i.e., spans a slot boundary. From the first nominal repetition (nominal repetition k) after t2, the PUSCH repetition uses the UL TCI state, SRS resource set, SRS resource, and TPMI in action time 2. For the PUSCH repetition before nominal repetition k, it uses the UL TCI state, SRS resource set, SRS resource, and TPMI in action time 1.

[0180] 13 is a diagram illustrating another PUSCH transmission in an embodiment of the present invention. FIG. 13 illustrates an example in which a PUSCH spans three action periods, and the same descriptions as in FIG. 12 are omitted. For PUSCH repetition type B, nominal repetition k is the first nominal repetition after the start time t2 of action period 2, and nominal repetition i is the first nominal repetition after the start time t3 of action period 3. Therefore, nominal repetition k to nominal repetition h use the UL TCI state, SRS resource set, SRS resource, and TPMI in action period 2, and nominal repetition i to the last nominal repetition in the figure use the UL TCI state, SRS resource set, SRS resource, and TPMI in action period 3.

[0181] In some implementations, when two UL TCI states and / or SRS resource sets are used for transmitting uplink data, the at least two UL TCI states and / or SRS resource sets are mapped to the K PUSCH repetitions in a predefined order.

[0182] In some implementations, the predefined order is: first the first UL TCI state and / or SRS resource set, then the second UL TCI state and / or SRS resource set; or first the second UL TCI state and / or SRS resource set, then the first UL TCI state and / or SRS resource set.

[0183] According to some embodiments, for a PUSCH repetition spanning at least two operating periods, starting from the first nominal repetition after the start time of a second operating period, the UL TCI state and / or SRS resource set within the operating period are associated or mapped to K nominal repetitions, among which the start times of the K nominal repetitions are all within the operating period, also referred to as K nominal repetitions within the operating period.

[0184] For example, within several interaction periods, the association of the UL TCI state and / or SRS resource set with the nominal repetition may be determined independently within each interaction period, i.e., the association or mapping may be re-established within each interaction period.

[0185] For example, if the number of UL TCI states changes from 1 to 2, or from 2 to 1, between Action Time 1 and Action Time 2, the previously established association is no longer applicable and the association or mapping must be performed again within Action Time 2.

[0186] For example, as shown in FIG. 12, the K nominal repetitions include nominal repetitions from nominal repetition k within action time 2.

[0187] For example, as shown in FIG. 13, the K nominal repetitions include nominal repetition k to nominal repetition h within action time 2.

[0188] According to some embodiments, when there are two UL TCI states and / or two SRS resource sets within the second action time, the two UL TCI states and / or two SRS resource sets are mapped to K nominal repetitions according to a predefined order, where the predefined order is "first the first SRS resource set and / or UL TCI state, then the second SRS resource set and / or UL TCI state" or "first the second SRS resource set and / or UL TCI state, then the first SRS resource set and / or UL TCI state."

[0189] For example, from action time 1 to action time 2, the terminal device changes from transmitting sTRP PUSCHs to transmitting mTRP PUSCHs, and since the UL DCI determined based on action time 1 does not indicate the mapping order of mTRP PUSCHs, the terminal device maps two UL TCI states and / or two SRS resource sets to K nominal repetitions according to a predefined order.

[0190] For example, as shown in FIG. 12, the K nominal repetitions include nominal repetitions from nominal repetition k within action time 2; when K>2 and cyclicMapping is enabled, the first and second UL TCI state and / or SRS resource set are applied to the first and second nominal repetitions, respectively, of the K consecutive nominal repetitions, and the same mapping scheme is applied to the remaining nominal repetitions of the K consecutive nominal repetitions; when K>2 and sequentialMapping is enabled, the first UL TCI state and / or SRS resource set is applied to the first and second nominal repetitions of the K consecutive nominal repetitions, and the second UL TCI state and / or SRS resource set is applied to the third and fourth nominal repetitions of the K consecutive nominal repetitions, and the same mapping scheme is applied to the remaining nominal repetitions of the K consecutive nominal repetitions.

[0191] For example, if the number of UL TCI states within action time 1 is 2, and based on the UL DCI instruction, the terminal equipment maps the first (denoted as #1) and second (denoted as #2) UL TCI state and SRS resource set to K=8 nominal repetitions in the order of #2, #1, #2, #1, #2, #1, #2, #1, and at a later time, if the DL DCI indicates two different UL TCI states within action time 2, causing the last four nominal repetitions to be in action time 2, the terminal equipment maps them to the last four nominal repetitions in the order of #1, #2, #1, #2 (predefined order), which is equivalent to mapping to 8 nominal repetitions in the order of #2, #1, #2, #1, #1, #2, #1, #2.

[0192] In some implementations, when one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is used for uplink data transmission, the one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is mapped to the K uplink repetitions (PUSCH repetitions).

[0193] According to some embodiments, when one UL TCI state and / or one SRS resource set exists within the second operation time, the UL TCI state and / or the SRS resource set is mapped to K nominal repetitions.

[0194] For example, from action time 1 to action time 2, if one UL TCI state associated with SRS resource set 2 changes to one different UL TCI state, or two UL TCI states associated with SRS resource set 1 and SRS resource set 2, respectively, change to one UL TCI state, the terminal device maps one UL TCI state in action time 2 to K nominal repetitions, and maps the SRS resource set associated with the one UL TCI state to K nominal repetitions.

[0195] In some implementations, the K uplink duplications (PUSCH repetitions) use a mapping scheme between the SRS resource set and uplink duplications (PUSCH repetitions) determined based on the third downlink control information.

[0196] According to some embodiments, for a PUSCH repetition spanning at least two action periods, in a second action period, the SRS resource set to nominal repetition mapping scheme determined in the previous first action period is continued, but the UL TCI state in the second action period is mapped to the nominal repetition in the second action period.

[0197] For example, if the number of UL TCI states in action time 1 is 2, and based on the instruction of the UL DCI, the terminal equipment maps the first (denoted as #1) and second (denoted as #2) UL TCI state and SRS resource set to K=8 nominal repetitions in the order of #2, #1, #2, #1, #2, #1, #2, #1, and then at a certain time, the DL DCI instructs two different UL TCI states in action time 2, causing the last four nominal repetitions to be in action time 2, the terminal equipment still maps the two SRS resource sets to the last four nominal repetitions in the order of #2, #1, #2, #1, but replaces the two UL TCI states applied to the last four nominal repetitions with the two UL TCI states in action time 2, and as a whole, maps the two SRS resource sets to the last four nominal repetitions in the order of #2, #1, #2, #1, #2, #1, #2, #1, and so on. The set is mapped to K=8 nominal repetitions, and the two UL TCI states in action time 1 are mapped to the previous four nominal repetitions in the order #2, #1, #2, #1, and the two UL TCI states in action time 2 are mapped to the last four nominal repetitions in the order #2, #1, #2, #1.

[0198] According to some embodiments, the above nominal repetition may be replaced with a symbol, or a slot, or an actual repetition, and other identical descriptions will be omitted.

[0199] For example, for a PUSCH spanning at least two durations, from the first symbol or slot or actual repetition after the start time of the second duration, the PUSCH uses the UL TCI state and SRS resource set within that duration.

[0200] This is illustrated by way of example in Figures 14 and 15. Figure 14 illustrates another PUSCH transmission in an embodiment of the present invention. Figure 15 illustrates another PUSCH transmission in an embodiment of the present invention.

[0201] As shown in Figures 14 and 15, from the first symbol after start time t2 of action time 2, PUSCH uses the UL TCI state and SRS resource set within action time 2. Figure 14 takes PUSCH repetition type A as an example, in which case "from the first symbol after t2" is equivalent to "from the first slot after t2", and Figure 15 takes PUSCH repetition type B as an example, in which one nominal repetition straddles the slot boundary t2 and is therefore divided into two actual repetitions (j, k), in which case "from the first symbol after t2" is equivalent to "from the first actual repetition after t2".

[0202] For example, when there are two UL TCI states and / or two SRS resource sets within the second operation time, the two UL TCI states and / or two SRS resource sets are mapped to K' actual repetitions within the second operation time according to a predefined order.

[0203] This is illustrated in Figure 15. Starting from the first actual repetition after t2, two UL TCI states and / or two SRS resource sets are mapped to K' actual repetitions within action time 2. The mapping method is the same as above, except that the previous "nominal repetition" is simply replaced with the "actual repetition."

[0204] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0205] As can be seen from the above embodiment, the terminal device determines related parameters for uplink data transmission within the second operating time period based on the parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time period, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus preventing uplink data transmission failures caused by the ambiguity.

[0206] <Example of the second aspect> In an embodiment of the present invention, an uplink data transmission method is provided, which is applied to a terminal device side. The embodiment of the present invention can be used in combination with the embodiment of the first aspect, or can be implemented alone. Note that the description of the same content as the embodiment of the first aspect will be omitted here.

[0207] 16 is a diagram illustrating another uplink data transmission method according to an embodiment of the present invention. As shown in FIG. 16, the method includes the following steps: 1601: A terminal device receives third downlink control information for scheduling uplink data within a first action time, and the terminal device transmits the uplink data within the first action time; and 1602: The terminal device determines, based on at least one of the SRS resource set, the SRS resource, and the TPMI indicated by the third downlink control information, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for the uplink data.

[0208] This allows the terminal device to transmit uplink data only within the first action time and determine related parameters associated with the uplink data, such as at least one of an SRS resource set, an SRS resource, and a TPMI, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus preventing uplink data transmission failures due to the ambiguity.

[0209] For specific limitations on the above-mentioned "first action time," "third downlink control information," "uplink data transmission based on a single transmission and reception point (sTRP)," "uplink data transmission based on multiple transmission and reception points (mTRP)," "SRS resource set, SRS resource, or TPMI," etc., reference may be made to the examples of the first aspect, and detailed explanations thereof will be omitted here.

[0210] 17 illustrates another signaling transmission process in an embodiment of the present invention. For example, as shown in FIG. 17, PUSCH scheduling based on UL DCI may be restricted, for example, so that the UL DCI and the PUSCH are within the same active time. In other words, the terminal device expects the UL DCI and the PUSCH scheduled by it to be within the same active time. In this case, the terminal device uses the UL TCI state within the active time (for example, the UL TCI state indicated by DL DCI 1) and determines the SRS resource set, UL TCI state, and SRS resource set based on the SRS resource set indicator field of the UL DCI; and determines whether to transmit an sTRP-based PUSCH or an mTRP-based PUSCH based on the SRS resource set. This allows related parameters associated with uplink data to be determined.

[0211] 16-17 are merely illustrative of embodiments of the present invention, and use a terminal device as an example, but the present invention is not limited thereto. For example, the execution order of each operation may be appropriately adjusted, some operations may be added or removed, or the targets of the above operations may be adjusted. Those skilled in the art may make appropriate modifications based on the above content, without being limited to the description of FIGS. 16-17.

[0212] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0213] As can be seen from the above embodiment, the terminal device can transmit uplink data only within the first action time and determine related parameters associated with the uplink data, such as at least one of an SRS resource set, an SRS resource, and a TPMI, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0214] <Example of the third aspect> In an embodiment of the present invention, an uplink data transmission method is provided, which is applied to a terminal device side. The embodiment of the present invention can be used in combination with the embodiment of the first aspect, or can be implemented alone. Here, the description of the same content as the embodiments of the first and second aspects will be omitted.

[0215] FIG. 18 illustrates another uplink data transmission method according to an embodiment of the present invention. As shown in FIG. 18, the method includes the following steps (operations): 1801: A terminal device receives third downlink control information for scheduling uplink data within a first action time, where at least a portion of the uplink data is within a second action time; and 1802: The terminal device does not transmit uplink data within the second action time.

[0216] Thus, the terminal device transmits uplink data only during the first action time and does not transmit uplink data during the second action time, so that the related parameters associated with the uplink data during the first action time can be determined, thereby avoiding ambiguity in the use of the related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0217] For specific definitions of the above-mentioned "first action time" and "third downlink control information", etc., please refer to the embodiments of the first aspect, and detailed descriptions thereof will be omitted here. For example, the relevant parameters of the uplink data within the first action time can be determined by referring to the embodiments of the second scheme.

[0218] 19 illustrates another signaling transmission process in an embodiment of the present invention. For example, as shown in FIG. 19, during the application time of the UL TCI state indicated by DL DCI 1 (first application time: application time 1 (Application time 1)), the terminal device uses the UL TCI state during this application time (e.g., the UL TCI state indicated by DL DCI 1) and determines an SRS resource set, a UL TCI state, and an SRS resource set based on the SRS resource set indicator field of the UL DCI; and determines whether to transmit an sTRP-based PUSCH or an mTRP-based PUSCH based on the SRS resource set, thereby determining related parameters associated with uplink data. During the second application time (Application time 2), the terminal device drops the PUSCH, i.e., does not transmit the PUSCH during the second application time. This avoids ambiguity in the use of related parameters for uplink data transmission, thereby preventing uplink data transmission failures due to such ambiguity.

[0219] 18-19 are merely illustrative of embodiments of the present invention, and use a terminal device as an example, but the present invention is not limited thereto. For example, the execution order of each operation may be appropriately adjusted, some operations may be added or removed, or the targets of the above operations may be adjusted. Those skilled in the art may make appropriate modifications based on the above content, without being limited to the description of FIGS. 18-19.

[0220] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0221] As can be seen from the above embodiment, the terminal device only transmits uplink data within the first action time and does not transmit uplink data within the second action time, so that the related parameters associated with the uplink data within the first action time can be determined, thereby avoiding ambiguity in the use of the related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0222] <Example of the fourth aspect> In an embodiment of the present invention, an uplink data receiving method is provided, which is applied to a network device. The embodiment of the present invention can be used in combination with the embodiment of the first aspect, or can be implemented independently. Here, the same content as the embodiment of the first aspect will not be described.

[0223] 20 is a diagram illustrating an uplink data receiving method according to an embodiment of the present invention. As shown in FIG. 20, the method includes the following steps (operations): 2001: A network device sends third downlink control information for scheduling uplink data to a terminal device within a first action time, where at least a portion of the uplink data is within a second action time, where two SRS resource sets are configured in the terminal device; and 2002: The network device receives uplink data within the second action time, during which the terminal device determines, based on parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for the uplink data within the second action time.

[0224] Note that the above-described Figure 20 is provided to exemplify an embodiment of the present invention, but the present invention is not limited thereto. For example, the execution order of each operation may be appropriately adjusted, or some operations may be added or removed. Those skilled in the art may make appropriate modifications based on the above content without being limited to the description of the above-described Figure 20.

[0225] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0226] As can be seen from the above embodiment, the terminal device determines related parameters for uplink data transmission within the second operating time period based on the parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time period, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus preventing uplink data transmission failures caused by the ambiguity.

[0227] <Example of the fifth aspect> In an embodiment of the present invention, an uplink data receiving method is provided, which is applied to a network device. The embodiment of the present invention can be used in combination with the embodiment of the first aspect, or can be implemented independently. Here, the same content as the embodiment of the second aspect will not be described.

[0228] 21 is a diagram illustrating another uplink data receiving method according to an embodiment of the present invention. As shown in FIG. 21, the method includes the following steps (operations): 2101: A network device sends third downlink control information for scheduling uplink data to a terminal device within a first action time, where two SRS resource sets are configured in the terminal device; and 2102: The network device receives the uplink data within the first action time, during which the terminal device determines, according to at least one of the SRS resource set, SRS resource, and TPMI indicated by the third downlink control information, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for the uplink data.

[0229] Note that, although the above-mentioned FIG. 21 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, the execution order of each operation may be appropriately adjusted, or some operations may be added or removed. Those skilled in the art may make appropriate modifications based on the above content without being limited to the description of the above-mentioned FIG. 21.

[0230] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0231] As can be seen from the above embodiment, the terminal device can transmit uplink data only within the first action time and determine related parameters associated with the uplink data, such as at least one of an SRS resource set, an SRS resource, and a TPMI, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0232] <Example of the sixth aspect> In an embodiment of the present invention, an uplink data receiving method is provided, which is applied to a network device. The embodiment of the present invention can be used in combination with the embodiment of the first aspect, or can be implemented independently. Here, the same content as the embodiment of the third aspect will not be described.

[0233] FIG. 22 illustrates another uplink data receiving method according to an embodiment of the present invention. As shown in FIG. 22, the method includes the following operations (steps): 2201: A network device sends third downlink control information for scheduling uplink data to a terminal device within a first action time, where at least a portion of the uplink data is within a second action time, where two SRS resource sets are configured in the terminal device; and 2202: The network device does not receive uplink data within the second action time, and the terminal device does not transmit uplink data within the second action time.

[0234] Note that, although the above-mentioned FIG. 22 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, the execution order of each operation may be appropriately adjusted, or some operations may be added or removed. Those skilled in the art may make appropriate modifications based on the above content without being limited to the description of the above-mentioned FIG. 22.

[0235] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0236] As can be seen from the above embodiment, the terminal device only transmits uplink data within the first action time and does not transmit uplink data within the second action time, so that the related parameters associated with the uplink data within the first action time can be determined, thereby avoiding ambiguity in the use of the related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0237] <Example of the seventh aspect> An embodiment of the present invention provides an uplink data transmission device, which may be, for example, a terminal device, or one or more components or assemblies disposed in the terminal device, in which two SRS resource sets are configured, and the same content as in the embodiment of the first aspect will not be described again.

[0238] 23 is a diagram illustrating an uplink data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 23, an uplink data transmission apparatus 2300 includes: A first receiving unit 2301: receives third downlink control information for scheduling uplink data within a first operating time, where at least a portion of the uplink data is within a second operating time; and a first transmitting unit 2302: determining, according to parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for uplink data within the second action time;

[0239] In some implementations, the uplink data includes at least one of the following uplink data types: Uplink duplication (PUSCH repetition) Type A; Uplink duplication (PUSCH repetition) Type B; or This is a PUSCH with simultaneous transmission from multiple panels.

[0240] In some implementations, the first receiving unit receives first downlink control information corresponding to a first operating time; and receives second downlink control information corresponding to a second operating time within the first operating time.

[0241] In some implementations, the parameters indicated by the third downlink control information include at least one of an SRS resource set, an SRS resource, and an uplink transmit precoding matrix indicator (TPMI).

[0242] In some implementations, the parameter is indicated by an SRS resource set indicator field in the third downlink control information.

[0243] In some implementations, the second downlink control information indicates at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second duration.

[0244] In some implementations, some or all of the UL TCI states among at least one UL TCI state corresponding to the second operating time or corresponding to the first operating time are used to transmit uplink data during the second operating time.

[0245] In some implementations, if the parameters indicated by the third downlink control information include one SRS resource set, uplink data transmission is based on a single transmission and reception point (sTRP) for uplink data within the second action period; and if the parameters include multiple SRS resource sets, uplink data transmission is based on multiple transmission and reception points (mTRP) for uplink data within the second action period.

[0246] In some implementations, for uplink data within a second action period, uplink data transmission is performed based on multiple transmission and reception points (mTRPs), and if the uplink transmission configuration indication state (UL TCI state) corresponding to the second action period includes one uplink transmission configuration indication state (UL TCI state), the one uplink transmission configuration indication state (UL TCI state) is associated with multiple SRS resource sets.

[0247] In some implementations, the uplink data within the second operating time is transmitted using an uplink transmission configuration indication state (UL TCI state) associated with the parameter among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time or the first operating time, or using a predefined uplink transmission configuration indication state (UL TCI state) among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time.

[0248] In some implementations, the predefined uplink transmission configuration indication state (UL TCI state) is one uplink transmission configuration indication state (UL TCI state) at a specific position among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time.

[0249] In some implementations, at least one of the following information among the parameters (i.e., SRS resource set, SRS resource, or uplink precoding index (transmit precoding matrix indicator, TPMI)) is used to transmit uplink data within the second action time.

[0250] In some implementations, if the uplink transmission configuration indication state (UL TCI state) corresponding to the second application time includes one uplink transmission configuration indication state (UL TCI state), uplink data transmission is performed based on a single transmission and reception point (sTRP) for the uplink data within the second application time; and if the uplink transmission configuration indication state (UL TCI state) corresponding to the second application time includes multiple uplink transmission configuration indication states (UL TCI states), uplink data transmission is performed based on a multiple transmission and reception point (mTRP) for the uplink data within the second application time.

[0251] In some implementations, at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time is used to transmit uplink data during the second operating time.

[0252] In some implementations, the parameter includes and / or predefined at least one of the following information (i.e., an SRS resource set, an SRS resource, or an uplink precoding index (transmit precoding matrix indicator, TPMI)) to transmit uplink data within the second action time.

[0253] In some implementations, the predefined at least one of the following information is determined based on one of the following: SRS resource set, SRS resource, or TPMI. Two configured SRS resource sets; One SRS resource set at a specific location out of two configured SRS resource sets; One SRS resource at a specific location among at least one SRS resource in one SRS resource set; Among at least one SRS resource in one SRS resource set, the first SRS resource with the smallest number of SRS ports; and It is one TPMI at a specific location among at least one TPMI available for one SRS resource.

[0254] In some implementations, the uplink data within the second action time is transmitted using at least one of the following information associated with the one or more uplink transmission configuration indication states (UL TCI states) (i.e., SRS resource set; SRS resource; or TPMI):

[0255] In some implementations, for at least one uplink repetition (PUSCH repetition) spanning a first application time period and a second application time period, uplink data within the second application time period starts from the first uplink repetition (PUSCH repetition) after the start time of the second application time period.

[0256] In some implementations, from the first uplink duplication (PUSCH repetition) after the start time of the second action period, at least one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set for transmitting the uplink data is associated or mapped to K uplink duplications (PUSCH repetitions), where the start times of the K uplink duplications (PUSCH repetitions) are within the second action period.

[0257] In some implementations, when two uplink transmission configuration indication states (UL TCI states) and / or SRS resource sets are used for uplink data transmission, the at least two uplink transmission configuration indication states (UL TCI states) and / or SRS resource sets are mapped to the K uplink repetitions (PUSCH repetitions) according to a predefined order.

[0258] In some implementations, the predefined order is: first a first UL TCI state and / or SRS resource set, then a second UL TCI state and / or SRS resource set; or The second uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is sent first, and then the first uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is sent second.

[0259] In some implementations, when one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is used for uplink data transmission, the one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is mapped to K uplink repetitions (PUSCH repetitions).

[0260] In some implementations, the K uplink repetitions (PUSCH repetitions) use a mapping scheme between the SRS resource set and uplink repetitions (PUSCH repetitions) determined based on the third downlink control information.

[0261] In some implementations, the uplink repetition (PUSCH repetition) includes at least one of a nominal repetition, an actual repetition, a symbol, and a slot.

[0262] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0263] Although only the components or modules according to the present invention have been described above, the present invention is not limited thereto. The uplink data transmitting device 2300 may further include other components or modules, and reference may be made to related art for specific details of these components or modules.

[0264] 23 only shows the connection relationships or signal directions between each component or module, but as will be understood by those skilled in the art, various related technologies such as bus connections may be employed. Each of these components or modules may be realized by hardware such as a processor, memory, transmitter, or receiver, and the present invention is not limited to these.

[0265] As can be seen from the above embodiment, the terminal device determines related parameters for uplink data transmission within the second operating time period based on the parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time period, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus preventing uplink data transmission failures caused by the ambiguity.

[0266] <Example of the eighth aspect> An embodiment of the present invention provides an uplink data transmission device, which may be, for example, a terminal device, or one or more components or assemblies disposed in the terminal device, in which two SRS resource sets are configured, and the same content as in the embodiment of the second aspect will not be described again.

[0267] 24 is a diagram illustrating another uplink data transmission device according to an embodiment of the present invention. As shown in FIG. 24, an uplink data transmission device 2400 includes: A second receiving unit 2401: receives third downlink control information for scheduling uplink data within a first operating time, and the terminal device transmits the uplink data within the first operating time; and a second sending unit 2402: determining, according to at least one of an SRS resource set, an SRS resource, or a TPMI indicated by the third downlink control information, whether the uplink data is to be transmitted based on a single transmission and reception point (sTRP) or multiple transmission and reception points (mTRP);

[0268] This allows the terminal device to transmit uplink data only within the first action time and determine related parameters associated with the uplink data, such as at least one of an SRS resource set, an SRS resource, and a TPMI, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus preventing uplink data transmission failures due to the ambiguity.

[0269] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0270] Although only the components or modules according to the present invention have been described above, the present invention is not limited thereto. The uplink data transmission device 2400 may further include other components or modules, and reference may be made to related art for specific details of these components or modules.

[0271] 24 only shows the connection relationships or signal directions between each component or module for convenience, but as will be understood by those skilled in the art, various related technologies such as bus connections may be employed. Each of these components or modules may be realized by hardware such as a processor, memory, transmitter, or receiver, and the present invention is not limited to these.

[0272] As can be seen from the above embodiment, the terminal device can transmit uplink data only within the first action time and determine related parameters associated with the uplink data, such as at least one of an SRS resource set, an SRS resource, and a TPMI, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0273] <Example of the ninth aspect> An embodiment of the present invention provides an uplink data transmission device, which may be, for example, a terminal device, or one or more components or assemblies disposed in the terminal device, in which two SRS resource sets are configured, and the same content as in the embodiment of the third aspect will not be described again.

[0274] 25 is a diagram illustrating an uplink data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 25, an uplink data transmission apparatus 2500 includes: A third receiving unit 2501: receives third downlink control information for scheduling uplink data within a first operating time, where at least a portion of the uplink data is within a second operating time; and A third transmitting unit 2502: does not transmit uplink data within the second action time.

[0275] Thus, the terminal device transmits uplink data only during the first action time and does not transmit uplink data during the second action time, so that the related parameters associated with the uplink data during the first action time can be determined, thereby avoiding ambiguity in the use of the related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0276] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0277] Although only the components or modules according to the present invention have been described above, the present invention is not limited thereto. Uplink data transmission device 2500 may further include other components or modules, and reference may be made to related art for specific details of these components or modules.

[0278] 25 only shows the connection relationships or signal directions between each component or module, but as will be understood by those skilled in the art, various related technologies such as bus connections may be employed. Each of these components or modules may be realized by hardware such as a processor, memory, transmitter, or receiver, and the present invention is not limited to these.

[0279] As can be seen from the above embodiment, the terminal device only transmits uplink data within the first action time and does not transmit uplink data within the second action time, so that the related parameters associated with the uplink data within the first action time can be determined, thereby avoiding ambiguity in the use of the related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0280] <Example of the tenth aspect> An embodiment of the present invention provides an uplink data receiving device, which may be, for example, a network device, or one or more components or assemblies disposed in the network device, and description of the same content as in the embodiment of the first aspect will be omitted here.

[0281] 26 is a diagram illustrating an uplink data receiving apparatus according to an embodiment of the present invention. As shown in FIG. 26, an uplink data receiving apparatus 2600 includes: A first sending unit 2601: sends third downlink control information for scheduling uplink data to a terminal device within a first operating time, where at least a portion of the uplink data is within a second operating time, and where two SRS resource sets are configured in the terminal device; and a first receiving unit 2602: receiving uplink data within the second action time, wherein the terminal device determines, according to parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for the uplink data within the second action time;

[0282] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0283] Although only the components or modules according to the present invention have been described above, the present invention is not limited thereto. The uplink data receiving device 2600 may further include other components or modules, and reference may be made to the related art for specific details of these components or modules.

[0284] 26 only shows the connection relationships or signal directions between each component or module for convenience, but as will be understood by those skilled in the art, various related technologies such as bus connections may be employed. Each of these components or modules may be realized by hardware such as a processor, memory, transmitter, or receiver, and the present invention is not limited to these.

[0285] As can be seen from the above embodiment, the terminal device determines related parameters for uplink data transmission within the second operating time period based on the parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time period, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus preventing uplink data transmission failures caused by the ambiguity.

[0286] <Example of the eleventh aspect> An embodiment of the present invention provides an uplink data receiving device, which may be, for example, a network device, or one or more components or assemblies disposed in the network device, and description of the same content as in the embodiment of the second aspect will be omitted here.

[0287] 27 is a diagram illustrating another uplink data receiving apparatus according to an embodiment of the present invention. As shown in FIG. 27, an uplink data receiving apparatus 2700 includes: A second sending unit 2701: sends third downlink control information for scheduling uplink data to a terminal device within a first action time, where two SRS resource sets are configured in the terminal device; and A second receiving unit 2702 receives the uplink data within the first action time, during which the terminal device determines, according to at least one of an SRS resource set, an SRS resource, or a TPMI indicated by the third downlink control information, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data.

[0288] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0289] Although only the components or modules according to the present invention have been described above, the present invention is not limited thereto. The uplink data receiving device 2700 may further include other components or modules, and reference may be made to the related art for specific details of these components or modules.

[0290] 27 only shows the connection relationships or signal directions between each component or module, but as will be understood by those skilled in the art, various related technologies such as bus connections may be employed. Each of these components or modules may be realized by hardware such as a processor, memory, transmitter, or receiver, and the present invention is not limited to these.

[0291] As can be seen from the above embodiment, the terminal device can transmit uplink data only within the first action time and determine related parameters associated with the uplink data, such as at least one of an SRS resource set, an SRS resource, and a TPMI, thereby avoiding ambiguity in the use of related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0292] <Example of the twelfth aspect> An embodiment of the present invention provides an uplink data receiving device, which may be, for example, a network device, or one or more components or assemblies disposed in the network device, and description of the same content as in the embodiment of the third aspect will be omitted here.

[0293] 28 is a diagram illustrating another uplink data receiving apparatus according to an embodiment of the present invention. As shown in FIG. 28, an uplink data receiving apparatus 2800 includes: A third receiving unit 2801: transmits third downlink control information for scheduling uplink data to a terminal device within a first operating time, where at least a portion of the uplink data is within a second operating time, where two SRS resource sets are configured in the terminal device; and A third sending unit 2802: does not receive uplink data during the second action time, whereby the terminal device does not send uplink data during the second action time.

[0294] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these embodiments. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or two or more of the above-described embodiments can be used in combination.

[0295] Although only the components or modules according to the present invention have been described above, the present invention is not limited thereto. The uplink data receiving device 2800 may further include other components or modules, and reference may be made to the related art for specific details of these components or modules.

[0296] 28 only shows the connection relationships or signal directions between each component or module for convenience, but as will be understood by those skilled in the art, various related technologies such as bus connections may be employed. Each of these components or modules may be realized by hardware such as a processor, memory, transmitter, or receiver, and the present invention is not limited to these.

[0297] As can be seen from the above embodiment, the terminal device only transmits uplink data within the first action time and does not transmit uplink data within the second action time, so that the related parameters associated with the uplink data within the first action time can be determined, thereby avoiding ambiguity in the use of the related parameters for uplink data transmission, and thus avoiding failure of uplink data transmission due to the ambiguity.

[0298] <Example of the thirteenth aspect> An embodiment of the present invention further provides a communication system, which can be seen from FIG. 1, and the description of the same contents as those of the first to twelfth aspects will be omitted here.

[0299] According to some embodiments, the communication system 100 includes at least the following: The network device: transmits third downlink control information to the terminal device within a first action time to schedule uplink data, where at least a portion of the uplink data is within a second action time; and The terminal device: two SRS resource sets are configured, and the terminal device determines, according to the parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on multiple transmission and reception points (mTRP) for uplink data within the second action time, and the network device receives the uplink data within the second action time.

[0300] According to some embodiments, the communication system 100 further includes at least: The network device: transmits third downlink control information for scheduling uplink data to the terminal device within a first action time; and The terminal device: two SRS resource sets are configured, and the terminal device determines, according to at least one of the SRS resource set, SRS resource, and TPMI indicated by the third downlink control information, to perform single transmission and reception point (sTRP)-based uplink data transmission or multiple transmission and reception point (mTRP)-based uplink data transmission for the uplink data, and the network device receives the uplink data within the first action time.

[0301] According to some embodiments, the communication system 100 further includes at least: The network device: transmits third downlink control information to the terminal device within a first action time to schedule uplink data, where at least a portion of the uplink data is within a second action time; and The terminal device: two SRS resource sets are configured, the terminal device does not transmit uplink data during the second action time, and the network device does not receive uplink data during the second action time.

[0302] In the embodiment of the present invention, a network device is further provided, which may be, for example, a base station, but the present invention is not limited thereto and may also be other network devices.

[0303] Figure 29 is a configuration diagram of a network device in an embodiment of the present invention. As shown in Figure 29, network device 2900 may include a processor 2910 (e.g., a central processing unit (CPU)) and a memory 2920, which is connected to processor 2910. Memory 2920 can store various data and can also store a program 2930 for information processing, and can execute program 2930 under the control of processor 2910.

[0304] 29, the network device 2900 may further include a transceiver 2940, an antenna 2950, ​​etc., and since the functions of these components are similar to those of the prior art, detailed description thereof will be omitted here. Note that the network device 2900 does not need to include all of the components shown in Fig. 29. The network device 2900 may further include components not shown in Fig. 29, and reference can be made to the prior art for such components.

[0305] In the embodiment of the present invention, a terminal device is further provided, but the present invention is not limited thereto and may be other devices.

[0306] 30 is a block diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 30, the terminal device 3000 may include a processor 3010 and a memory 3020, where the memory 3020 stores data and programs and is connected to the processor 3010. Note that this diagram is merely an example, and other types of components may be used to supplement or replace the components to achieve telecommunications or other functions.

[0307] For example, the processor 3010 may be configured to execute a program to realize the uplink data transmission method described in the embodiments of the first aspect. For example, the processor 3010 may be configured to perform the following control: determine, when two SRS resource sets are configured, that third downlink control information is received for scheduling uplink data within a first action time, in which at least a portion of the uplink data is within a second action time; and determine, according to parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data within the second action time.

[0308] As shown in Fig. 30, the terminal device 3000 may further include a communication module 3030, an input unit 3040, a display 3050, a power supply 3060, etc. Among them, the functions of the above-mentioned components are similar to those of the prior art, so detailed description thereof will be omitted here. Note that the terminal device 3000 does not need to include all of the components shown in Fig. 30. Furthermore, the terminal device 3000 may further include components not shown in Fig. 30, but reference can be made to the prior art for such components.

[0309] In a further embodiment of the present invention, a computer program is provided, which, when executed in a terminal device, causes the terminal device to perform the uplink data transmission method described in the embodiments of the first to third aspects.

[0310] An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes a terminal device to perform the uplink data transmission method described in the embodiments of the first to third aspects.

[0311] In a further embodiment of the present invention, a computer program is provided, which, when executed in a terminal device, causes the terminal device to perform the uplink data reception method described in the embodiments of the fourth to sixth aspects.

[0312] In a further embodiment of the present invention, a storage medium storing a computer program is provided, in which the computer program causes a terminal device to perform the uplink data reception method described in the embodiments of the fourth to sixth aspects.

[0313] The above-described devices and methods may be realized by software or hardware, or by a combination of hardware and software. The present invention further relates to a computer-readable program as described below, which, when executed by a logic component, causes the logic component to realize the above-described devices or components, or to perform each of the above-described methods or steps. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processing unit used in a computer. The present invention also relates to a storage medium, such as a hard disk, magnetic disk, optical hard disk, DVD, or flash memory, that stores the above-described program.

[0314] Furthermore, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks 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 component, a discrete gate or transistor logic component, a discrete hardware assembly, or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be further implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors communicatively coupled with a DSP, or any other configuration.

[0315] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and any modifications to the present invention that do not depart from the spirit of the present invention fall within the technical scope of the present invention.

[0316] Furthermore, the following additional notes are disclosed regarding the above-described embodiments.

[0317] (Appendix 1) An uplink data transmission method is applied to a terminal device, wherein two SRS resource sets are configured in the terminal device, and the method includes: the terminal device receives third downlink control information for scheduling uplink data within a first action time, wherein at least a portion of the uplink data is within a second action time; and The terminal device determines, based on parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, whether to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for uplink data within the second action time.

[0318] (Appendix 2) 2. The method of claim 1, comprising: The uplink data includes at least one of the following uplink data types: Uplink duplication (PUSCH repetition) Type A; Uplink duplication (PUSCH repetition) Type B; or This is a PUSCH that transmits simultaneously from multiple panels.

[0319] (Appendix 3) 2. The method of claim 1, comprising: The terminal device receives first downlink control information corresponding to the first action time; and receiving second downlink control information corresponding to the second action time within the first action time.

[0320] (Appendix 4) 2. The method of claim 1, comprising: The parameters include at least one of an SRS resource set, an SRS resource, and a TPMI.

[0321] (Appendix 5) 5. The method of claim 4, The parameter is indicated by an SRS resource set indicator field in the third downlink control information.

[0322] (Appendix 6) 4. The method of claim 3, The second downlink control information indicates the at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time.

[0323] (Appendix 7) 2. The method of claim 1, comprising: Transmitting uplink data during the second action time using some or all of the uplink transmission configuration indication states (UL TCI states) among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time or corresponding to the first action time.

[0324] (Appendix 8) 8. The method of claim 7, If the parameter includes one SRS resource set, performing uplink data transmission based on a single transmission and reception point (sTRP) for uplink data within the second action time; When the parameters include multiple SRS resource sets, uplink data transmission is performed based on multiple transmission and reception points (mTRPs) for uplink data within the second action time.

[0325] (Appendix 9) 9. The method of claim 8, For uplink data within the second action time, uplink data transmission is performed based on multiple transmission and reception points (mTRPs), and when the uplink transmission configuration indication state (UL TCI state) corresponding to the second action time includes one uplink transmission configuration indication state (UL TCI state), the one uplink transmission configuration indication state (UL TCI state) is associated with the multiple SRS resource sets.

[0326] (Appendix 10) 9. The method of claim 8, Transmitting uplink data within the second action time using an uplink transmission configuration indication state (UL TCI state) associated with the parameter among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time or the first action time, or using a predefined uplink transmission configuration indication state (UL TCI state) among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time.

[0327] (Appendix 11) 11. The method of claim 10, The predefined uplink transmission configuration indication state (UL TCI state) is one uplink transmission configuration indication state (UL TCI state) at a specific position among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time.

[0328] (Appendix 12) 9. The method of claim 8, Transmitting uplink data within the second action time using at least one of the following information in the parameters: SRS resource set; SRS resource; or TPMI.

[0329] (Appendix 13) 8. The method of claim 7, When the uplink transmission configuration indication state (UL TCI state) corresponding to the second action time includes one uplink transmission configuration indication state (UL TCI state), perform uplink data transmission based on a single transmission and reception point (sTRP) for uplink data within the second action time; When the uplink transmission setting indication state corresponding to the second action time includes multiple uplink transmission setting indication states (UL TCI states), uplink data transmission based on multiple transmission and reception points (mTRP) is performed for the uplink data within the second action time.

[0330] (Appendix 14) 14. The method of claim 13, Transmitting uplink data during the second operating time using at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time.

[0331] (Appendix 15) 14. The method of claim 13, The parameters include and / or at least one of the following predefined information: SRS resource set; SRS resource; or TPMI, and the uplink data within the second action time is transmitted using the predefined information.

[0332] (Appendix 16) 16. The method of claim 15, At least one of the predefined information: SRS resource set; SRS resource; or TPMI is determined based on one of the following: Two SRS resource sets have been configured; One SRS resource set at a specific location out of two configured SRS resource sets; One SRS resource at a specific location among at least one SRS resource in one SRS resource set; Among at least one SRS resource in one SRS resource set, the first SRS resource with the smallest number of SRS ports; and One TPMI at a specific location among at least one TPMI available in one SRS resource.

[0333] (Appendix 17) 14. The method of claim 13, Transmitting uplink data within the second action time using at least one of the following information associated with the one uplink transmission configuration indication state (UL TCI state) or the plurality of uplink transmission configuration indication states (UL TCI states): SRS resource set; SRS resource; or TPMI.

[0334] (Appendix 18) 18. The method of any one of claims 1-17, comprising: For at least one uplink repetition (PUSCH repetition) spanning the first action time and the second action time, the uplink data within the second action time starts from the first uplink repetition (PUSCH repetition) after the start time of the second action time.

[0335] (Appendix 19) 19. The method of claim 18, From a first uplink duplication (PUSCH repetition) after a start time of the second action time, at least one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set for transmitting the uplink data is associated with or mapped to K uplink duplications (PUSCH repetitions), where the start times of the K uplink duplications (PUSCH repetitions) are within the second action time.

[0336] (Appendix 20) 19. The method of claim 18, When two uplink transmission configuration indication states (UL TCI states) and / or SRS resource sets are for transmitting the uplink data, the at least two uplink transmission configuration indication states (UL TCI states) and / or SRS resource sets are mapped to the K uplink repetitions (PUSCH repetitions) according to a predefined order.

[0337] (Appendix 21) 21. The method of claim 20, The predefined order is: first a first UL TCI state and / or SRS resource set, then a second UL TCI state and / or SRS resource set; or The second uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is first, and then the first uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is second.

[0338] (Appendix 22) 19. The method of claim 18, When one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is for transmitting the uplink data, the one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is mapped to the K uplink repetitions (PUSCH repetitions).

[0339] (Appendix 23) 19. The method of claim 18, The K uplink duplications (PUSCH repetitions) use a mapping scheme of the SRS resource set and the uplink duplications (PUSCH repetitions) determined based on the third downlink control information.

[0340] (Appendix 24) 24. The method of any one of claims 18-23, comprising: The uplink repetition (PUSCH repetition) includes at least one of a nominal repetition, an actual repetition, a symbol, and a slot.

[0341] (Appendix 25) An uplink data transmission method is applied to a terminal device, wherein two SRS resource sets are configured in the terminal device, and the method includes: the terminal device receives third downlink control information for scheduling uplink data within a first operating time, and the terminal device transmits the uplink data within the first operating time; and The method includes determining, based on at least one of an SRS resource set, an SRS resource, and a TPMI indicated by the third downlink control information, whether the terminal device will perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data.

[0342] (Appendix 26) An uplink data transmission method is applied to a terminal device, wherein two SRS resource sets are configured in the terminal device, and the method includes: the terminal device receives third downlink control information for scheduling uplink data within a first action time, wherein at least a portion of the uplink data is within a second action time; and The terminal device not transmitting uplink data within the second action time.

[0343] (Appendix 27) An uplink data reception method is applied to a network device, in which two SRS resource sets are configured in a terminal device, the method comprising: The network device transmits third downlink control information for scheduling uplink data to the terminal device within a first action time, where at least a portion of the uplink data is within a second action time; and The method includes the network device receiving uplink data within the second action time, wherein the terminal device determines, based on parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second action time, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data within the second action time.

[0344] (Appendix 28) An uplink data reception method is applied to a network device, in which two SRS resource sets are configured in a terminal device, the method comprising: The network device transmits third downlink control information for scheduling uplink data to the terminal device within a first action time; and The network device receives the uplink data within the first action time, during which the terminal device determines, based on at least one of an SRS resource set, an SRS resource, and a TPMI indicated by the third downlink control information, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data.

[0345] (Appendix 29) An uplink data reception method is applied to a network device, in which two SRS resource sets are configured in a terminal device, the method comprising: The network device transmits third downlink control information for scheduling uplink data to the terminal device within a first action time, where at least a portion of the uplink data is within a second action time; and The network device does not receive uplink data within the second action time within the second action time, and the terminal device does not transmit uplink data within the second action time.

[0346] (Appendix 30) A terminal device, comprising: a memory and a processor, wherein the memory stores a computer program; and the processor is configured to execute the computer program to implement the uplink data transmission method according to any one of Supplementary Notes 1 to 26.

[0347] (Appendix 31) A network device comprising: a memory device and a processor, the memory device storing a computer program; and the processor configured to execute the computer program to implement the uplink data reception method according to any one of Supplementary Notes 27 to 29.

[0348] (Appendix 32) 1. A communication system comprising: a network device that transmits third downlink control information to a terminal device within a first action time for scheduling uplink data, wherein at least a portion of the uplink data is within a second action time; The terminal device further includes: two SRS resource sets configured; and the terminal device determines, according to parameters indicated by the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operating time, to perform uplink data transmission based on a single transmission and reception point (sTRP) or uplink data transmission based on a multiple transmission and reception point (mTRP) for uplink data within the second operating time; The network device receives uplink data within the second operating time.

[0349] (Appendix 33) 1. A communication system comprising: a network device that transmits third downlink control information for scheduling uplink data to a terminal device within a first action time; The terminal device further includes a terminal device, wherein two SRS resource sets are configured, and the terminal device determines, according to at least one of the SRS resource set, the SRS resource, and the TPMI indicated by the third downlink control information, to perform single transmission and reception point (sTRP)-based uplink data transmission or multiple transmission and reception point (mTRP)-based uplink data transmission for the uplink data; The network device receives the uplink data within the first action time.

[0350] (Appendix 34) 1. A communication system comprising: a network device that transmits third downlink control information to a terminal device within a first action time for scheduling uplink data, wherein at least a portion of the uplink data is within a second action time; The terminal device further includes: two SRS resource sets configured; and the terminal device does not transmit uplink data within the second action time; The network device does not receive uplink data within the second action time.

Claims

1. A device for transmitting uplink data, disposed in a terminal device, comprising: Two SRS resource sets are configured in the terminal equipment, The device comprises: a first receiver for receiving third downlink control information for scheduling uplink data within a first application time, the uplink data being at least partially within a second application time; and a first transmitter that determines whether to perform an sTRP-based first uplink data transmission or an mTRP-based second uplink data transmission for uplink data within the second application time based on a parameter indicated by the third downlink control information; The uplink data includes at least one of an uplink duplication type A, an uplink duplication type B, and a PUSCH simultaneously transmitted in a multi-panel transmission scheme; the first receiver receives first downlink control information corresponding to the first application time, and receives second downlink control information corresponding to the second application time within the first application time; The first downlink control information indicates two uplink TCI states corresponding to the first application time, and the second downlink control information indicates one uplink TCI state corresponding to the second application time.

2. The device according to claim 1, The apparatus, wherein the parameters include at least one of an SRS resource set, an SRS resource, and a TPMI.

3. The device according to claim 2, The parameter is indicated by an SRS resource set indication field in the third downlink control information.

4. The device according to claim 1, The apparatus transmits uplink data within the second application time using the one uplink TCI state corresponding to the second application time.

5. The device of claim 1, An apparatus for transmitting uplink data within the second application time using some of the two uplink TCI states corresponding to the first application time.

6. The device of claim 1, If the parameter includes one SRS resource set, performing a first uplink data transmission based on an sTRP for uplink data within the second application time; When the parameters include multiple SRS resource sets, an apparatus performs an mTRP-based second uplink data transmission for uplink data within the second application time.

7. The device of claim 6, An apparatus for transmitting uplink data within the second application time using an uplink TCI state associated with the parameter, among at least one uplink TCI state corresponding to the second application time or the first application time.

8. The device of claim 6, The apparatus transmits uplink data within the second application time using at least one of an SRS resource set, an SRS resource, and a TPMI in the parameters.

9. A device for receiving uplink data from a terminal device, the device being disposed in a network device, Two SRS resource sets are configured in the terminal device, The device comprises: a first transmitter transmitting third downlink control information for scheduling uplink data within a first application time, the uplink data being at least partially within a second application time; and a first receiver for receiving uplink data transmitted by the terminal device, the first receiver determining whether to perform sTRP-based first uplink data transmission or mTRP-based second uplink data transmission for the uplink data within the second application time based on parameters indicated by the third downlink control information; The uplink data includes at least one of an uplink duplication type A, an uplink duplication type B, and a PUSCH simultaneously transmitted in a multi-panel transmission scheme; the first transmitter transmits first downlink control information corresponding to the first application time, and transmits second downlink control information corresponding to the second application time within the first application time; The first downlink control information indicates two uplink TCI states corresponding to the first application time, and the second downlink control information indicates one uplink TCI state corresponding to the second application time.

10. The device of claim 9, The apparatus, wherein the parameters include at least one of an SRS resource set, an SRS resource, and a TPMI.

11. The apparatus of claim 9, The parameter is indicated by an SRS resource set indication field in the third downlink control information.

12. The apparatus of claim 9, The apparatus transmits uplink data within the second application time using the one uplink TCI state corresponding to the second application time.

13. The apparatus of claim 9, An apparatus for transmitting uplink data within the second application time using some of the two uplink TCI states corresponding to the first application time.

14. The apparatus of claim 9, If the parameter includes one SRS resource set, performing a first uplink data transmission based on an sTRP for uplink data within the second application time; When the parameters include multiple SRS resource sets, an apparatus performs an mTRP-based second uplink data transmission for uplink data within the second application time.

15. The apparatus of claim 14, An apparatus for transmitting uplink data within the second application time using an uplink TCI state associated with the parameter, among at least one uplink TCI state corresponding to the second application time or the first application time.

16. The apparatus of claim 14, The apparatus transmits uplink data within the second application time using at least one of an SRS resource set, an SRS resource, and a TPMI in the parameters.

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