Uplink data transmission, uplink data reception apparatus 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 technical field of communications.

Background Art

[0002] 3GPP (registered trademark) is performing standardization work on unified transmission configuration indication (TCI) during the standardization process of Release 17 (Rel-17). Among them, the unified TCI in Rel-17 is mainly designed for the single transmission and reception point (sTRP) scenario.

[0003] With the advancement of standardization work, multi-TRP (mTRP, multiple transmission and reception point) has become an important scenario in the 5G NR system, and through mTRP-based transmission, the purpose of improving throughput or reliability can be achieved.

[0004] In the conventional standardization work, in Rel-16, standardization has been carried out for the transmission of the mTRP-based Physical Downlink Shared Channel (PDSCH), and in Rel-17, standardization has been carried out for the transmission of the mTRP-based Physical Downlink Control Channel (PDCCH), Physical Uplink Shared Channel (PUSCH), and Physical Uplink Control Channel (PUCCH). Among them, mTRP transmission includes mTRP transmission based on single Downlink Control Information (sDCI) and mTRP transmission based on multiple DCI (mDCI).

[0005] Note that the introduction of the above background art is for clearly and completely explaining the technical solution of the present invention and for facilitating understanding by those skilled in the art. These technical solutions should not be construed as well-known to those skilled in the art just because they are described in the background art of the present invention.

Summary of the Invention

Problems to be Solved by the Invention

[0006] In the scenario where the unified TCI of Rel-17 is for sTRP (single transmission and reception point), the network device sets M (M≥1) TCI states (TCI state) for the terminal device using RRC signaling, activates N (1≤N≤M) TCI states out of the M TCI states using a medium access control (MAC) control element (CE), and indicates L (1≤L≤N) TCI states out of the N TCI states using downlink control information (DCI). Among them, the transmission configuration indication (TCI) field of DCI format 1_1 or DCI format 1_2 indicates one or more TCI states (TCI state), and DCI format 1_1 or DCI format 1_2 may schedule downlink data. In this case, it is referred to as DCI format 1_1 / 1_2 with DL assignment, and it may not schedule downlink data. In this case, it is referred to as DCI format 1_1 / 1_2 without DL assignment.

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

[0008] Therefore, the indication or update for the TCI state actually also includes the indication or update for the beam used by the terminal device. The TCI state includes the joint TCI state, the downlink TCI state, and the uplink TCI state. The source reference signal included in the downlink TCI state is the downlink source reference signal, the source reference signal included in the uplink TCI state is the uplink source reference signal, and the source reference signal included in the joint TCI state is both the downlink source reference signal and the uplink source reference signal. The joint TCI state acts on the downlink beam (receiving beam) and the uplink beam (transmitting beam) simultaneously. In other words, the downlink beam and the uplink beam use the same beam, but the beam directions are opposite, that is, there is an opposite relationship between the uplink and downlink beams. The downlink TCI state acts only on the downlink beam. The uplink TCI state acts only on the uplink beam. The uplink beam is also referred to as the uplink transmission spatial filter. The TCI field can indicate the joint TCI state (joint DL / UL TCI), or the TCI field can indicate the downlink TCI state and / or the uplink TCI state (separate DL / UL TCI), and these two modes can be set by RRC signaling. In the case of Rel-17 unified TCI, one TCI field indicates one joint TCI state, or indicates one downlink TCI state, or indicates one uplink TCI state, or indicates one downlink TCI state and one uplink TCI state. For the TCI state indicated by one DCI, it is valid within a predetermined period until another DCI indicates an updated TCI, and this period is referred to as the action time of the TCI state.

[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] For at least one of the above problems, embodiments of the present invention provide an uplink data transmission, uplink data reception method, and apparatus. The terminal device determines related parameters for uplink data transmission within the second operation time based on at least one uplink transmission configuration indication state (UL TCI state) corresponding to the parameters and / or the second operation time indicated by the third downlink control information. Thereby, ambiguity in the use of related parameters for uplink data transmission can be avoided, and uplink data transmission failure due to this ambiguity can be avoided.

Means for Solving the Problem

[0012] According to one aspect of embodiments of the present invention, an uplink data transmission method is provided and applied to a terminal device, wherein two SRS resource sets are set in the terminal device, and the method includes: The terminal device receives third downlink control information for scheduling uplink data within a first operation time, wherein at least a part of the uplink data is within a second operation time; and The terminal device determines to perform uplink data transmission based on a single transmission and reception point (sTRP) or perform uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data within the second operation time 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 operation time.

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

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

[0015] According to another aspect of the embodiments of the present invention, an uplink data reception method is provided, which is applied to a network device. Among them, two SRS resource sets are set in the 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 operation time, wherein at least a part of the uplink data is within a second operation time; and The network device receives uplink data within the second operation time, and among them, based on the parameters indicated by the terminal device according to the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time, for the uplink data within the second operation time, determining to perform uplink data transmission based on a single transmission and reception point (sTRP), or to perform uplink data transmission based on a multiple transmission and reception point (mTRP).

[0016] According to another aspect of the embodiments of the present invention, an uplink data reception method is provided, which is applied to a network device. Among them, two SRS resource sets are set for the 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 operation time; and The network device receives the uplink data within the first operation time. Among them, based on at least one of the SRS resource set, SRS resource, and TPMI indicated by the terminal device according to the third downlink control information, for the uplink data, determining to perform uplink data transmission based on a single transmission and reception point (sTRP), or to perform uplink data transmission based on a multiple transmission and reception point (mTRP).

[0017] According to another aspect of the embodiments of the present invention, an uplink data reception method is provided, which is applied to a network device. Among them, two SRS resource sets are set for the 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 operation time, wherein at least a part of the uplink data is within a second operation time; and The network device does not receive uplink data within the second operation time within the second operation time, including that the terminal device does not transmit uplink data within the second operation time.

[0018] According to another aspect of the embodiments of the present invention, an uplink data transmission device is provided, which is arranged in a terminal device. Among them, two SRS resource sets are set in the terminal device. The uplink data transmission device includes A first receiving unit that receives third downlink control information for scheduling uplink data within a first operation time, wherein at least a part of the uplink data is within a second operation time; and 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 operation time, for the uplink data within the second operation time, determine to perform uplink data transmission based on a single transmission and reception point (sTRP), or perform uplink data transmission based on a multiple transmission and reception point (mTRP). The uplink data transmission device includes a first transmission unit.

[0019] According to another aspect of the embodiments of the present invention, an uplink data transmission device is provided, which is arranged in a terminal device. Among them, two SRS resource sets are set in the terminal device. The uplink data transmission device includes A second receiving unit that receives third downlink control information for scheduling uplink data within a first operation time, wherein the terminal device transmits the uplink data within the first operation time; and Based on at least one of an SRS resource set, an SRS resource, and a transmit precoding matrix indicator (TPMI) indicated by the third downlink control information, perform uplink data transmission based on a single transmission and reception point (sTRP) for the uplink data, or determine to perform uplink data transmission based on a multiple transmission and reception point (mTRP). The apparatus includes a second transmitting unit.

[0020] According to another aspect of the embodiments of the present invention, an uplink data transmission apparatus is provided and disposed in a terminal device. Among them, two SRS resource sets are set in the terminal device, and the uplink data transmission apparatus includes A third receiving unit that receives third downlink control information for scheduling uplink data within a first operation time, wherein at least a part of the uplink data is within a second operation time; and A third transmitting unit that does not transmit uplink data within the second operation time.

[0021] According to another aspect of the embodiments of the present invention, an uplink data receiving apparatus is provided and disposed in a network device, and the uplink data receiving apparatus includes A first transmission unit that transmits third downlink control information for scheduling uplink data to a terminal device within a first operation time, wherein at least a part of the uplink data is within a second operation time, and two SRS resource sets are configured for the terminal device; and A first reception unit that receives uplink data within the second operation time, Among them, 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 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 to determine.

[0022] According to another aspect of an embodiment of the present invention, an uplink data reception device is provided, which is arranged in a network device, and the uplink data reception device includes A second transmission unit that transmits third downlink control information for scheduling uplink data to a terminal device within a first operation time, wherein two SRS resource sets are configured for the terminal device; and A second reception unit that receives the uplink data within the first operation time, Among them, the terminal device determines to perform uplink data transmission based on a single transmission and reception point (sTRP) or perform uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data, based on at least one of an SRS resource set, an SRS resource, and a TPMI indicated by the third downlink control information.

[0023] According to another aspect of the embodiments of the present invention, an uplink data receiving device is provided and is arranged in a network device. The uplink data receiving device includes: a third receiving unit that transmits third downlink control information for scheduling uplink data to a terminal device within a first operation time, where at least a part of the uplink data is within a second operation time, and two SRS resource sets are set in the terminal device; and a third transmitting unit that does not transmit the uplink data within the second operation time within the second operation time, where the terminal device does not transmit the uplink data within the second operation time.

Advantages of the Invention

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

[0025] The terminal device determines relevant 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 relevant parameters for uplink data transmission can be avoided, and uplink data transmission failure due to this ambiguity can be avoided.

[0026] Specific embodiments of the present invention are disclosed in detail by referring to the following description and drawings, showing aspects in which the principles of the present invention can be adopted. It should be noted that the embodiments of the present invention are not limited in scope by these. Within the scope of the appended claims, the embodiments of the present invention may include various changes, modifications, and alternatives.

[0027] Also, the features described and / or shown for one embodiment can be used in one or more other embodiments in the same or a similar manner, combined with the features in other embodiments, or replace the features in other embodiments.

[0028] Note that terms such as "comprising / having", when used in this specification, refer to the presence of features, elements, steps, or assemblies, but also refer to not excluding the presence or addition of one or more other features, elements, steps, or assemblies.

Brief Description of the Drawings

[0029] The elements and features described in one drawing or one embodiment of the present invention can be combined with the elements and features shown in one or more other drawings or embodiments. Also, in the drawings, the same reference numerals are used to indicate corresponding parts in several drawings and also to indicate corresponding parts used in multiple embodiments.

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Embodiments for Carrying Out the Invention

[0030] By referring to the accompanying drawings and the following description, the foregoing and other features of the present invention will become apparent. Although specific embodiments of the present invention are disclosed in the specification and drawings, they are only examples that can adopt the principles of the present invention. It should be understood that the present invention is not limited to the described embodiments, that is, the present invention also includes all changes, modifications, and substitutions within the scope of the appended claims.

[0031] In an embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any of the following communication standards, for example, LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (registered trademark) (Wideband Code Division Multiple Access), HSPA (High-Speed Packet Access), and the like.

[0032] Also, the communication between devices in the communication system may be performed according to a communication protocol at any stage. For example, it may include, but is not limited to, the following communication protocols, that is, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and the like, and / or other conventional or future-developed communication protocols.

[0033] In an embodiment of the present invention, the term "network device" refers to, for example, a device that connects a terminal device to a communication network and provides services to the terminal device in a communication system. The network device may include, but is not limited to, the following, that is, 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), and the like.

[0034] The base station may include, but is not limited to, the following, namely, Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may further include Remote Radio Head (RRH), Remote Radio Unit (RRU), relay, or low-power node (e.g., femto, pico, etc.). Also, the term "base station" may include some or all of their functions, and each base station can provide communication coverage for a specific geographical area. The term "cell" may refer to the base station and / or the area it covers, depending on the context in which the term is used. Also, the cell and the base station are interchangeable as long as there is no confusion.

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

[0036] The user equipment may include, but is not limited to, the following, for example, cellular phone, PDA (Personal Digital Assistant), wireless modem, wireless communication device, mobile device, machine type communication device, laptop computer, cordless telephone, smartphone, smartwatch, digital camera, etc.

[0037] Also, for example, in scenarios such as IoT (Internet of Things), the user device may further be a device or apparatus for performing monitoring or measurement. For example, it may include, but is not limited to, the following, namely, machine type communication (MTC) terminals, in-vehicle communication terminals, D2D (Device to Device) terminals, M2M (Machine to Machine) terminals, and the like.

[0038] Also, the term "network side" or "network device side" refers to the side of the network, which may be a certain base station and may also include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the side of the user or terminal, which may be a certain UE and may also include one or more terminal devices as described above. Here, unless otherwise specified, the "device" may refer to a network device or a terminal device.

[0039] Hereinafter, the scenarios of the embodiments of the present invention will be described through examples, but the present invention is not limited thereto.

[0040] FIG. 1 is a diagram showing a communication system in an embodiment of the present invention, illustrating a case where terminal devices and network devices are taken as examples. As shown in FIG. 1, the communication system 100 may include a first TRP 101, a second TRP 102, and a terminal device 103. Among them, the first TRP 101 and the second TRP 102 may be network devices. For the sake of convenience, in FIG. 1, only two network devices and one terminal device are taken as examples for description, but the embodiments of the present invention are not limited thereto.

[0041] In an embodiment of the present invention, conventional services (services / traffic) or services that can be implemented in the future can be transmitted between the first TRP101, the second TRP102, 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] In Rel-16, standardization has been carried out for mTRP-based PDSCH transmission, and in Rel-17, standardization has been carried out for mTRP-based PDCCH, PUSCH, and PUCCH transmission. mTRP transmission includes sDCI (single DCI)-based mTRP transmission and mDCI (multiple DCI)-based mTRP transmission. 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 use two DCIs to schedule the uplink and downlink transmissions of their respective TRPs, which is more suitable when the backhaul between the TRPs is not ideal.

[0043] Taking the case where the terminal device 103 performs PUSCH transmission in an mTRP scenario as an example, as shown in FIG. 1, the terminal device 103 transmits the PUSCH in a PUSCH repetition manner. For example, it is transmitted to the first TRP101 in slot 1 and to the second TRP102 in slot 2, and the rest can be analogized based on this.

[0044] In the mTRP scenario, two SRS resource sets are configured for the terminal device, each corresponding to two TRPs. For example, two SRS resource sets are configured for the terminal device. For example, for terminal device 103, a first SRS resource set corresponding to the first TRP 101 is configured, and a second SRS resource set corresponding to the second TRP 102 is configured for terminal device 103.

[0045] Due to the geographical location difference between 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, SRI (SRS resource indicator), and power control parameters. Also, the terminal device 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] Taking the case where the transmission parameter is SRI (SRS resource indicator) as an example, for the dynamic UL grant, two SRI fields in the DCI indicate the SRS resources in the two SRS resource sets respectively. For the configured grant, two SRIs are set for the two SRS resource sets by the RRC. Therefore, the terminal device needs to know the mapping relationship between PUSCH repetition and the SRS resource set, that is, 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 of Rel-17 is only applicable to the sTRP scenario. Considering the importance of mTRP, it is necessary to design its corresponding unified TCI mechanism for the mTRP scenario. 3GPP (registered trademark) is expected to standardize the unified TCI for mTRP in Rel-18. So far, the unified TCI for mTRP has been determined as one of the contents of the Rel-18 project, but the standardization work for Rel-18 has not started yet. From a functional perspective, the unified TCI for mTRP needs to be able to support mTRP PUSCH transmission by indicating the TCI states of two TRPs and also be able to support sTRP PUSCH transmission by indicating the TCI state of one TRP.

[0049] The following will be described in conjunction with specific uplink and downlink signaling.

[0050] Figure 2 is a diagram showing the signaling transmission process in an embodiment of the present invention. For the unified TCI, the DL DCI indicates the application time of at least one UL TCI state. For example, it is DL DCI 1 or DL DCI 2 in Figure 2. The UL TCI state may be indicated by the joint DL / UL TCI state or the separate DL / UL TCI state. The terminal device receives DL DCI 1 that indicates at least one UL TCI state. Among them, the UL TCI state indicated by DL DCI 1 is different from the UL TCI state indicated by the previous DL DCI (for example, DL DCI 0, not shown in Figure 2) (including the case where the number of UL TCI states is different). The terminal device transmits an ACK (ACK 1) for DL DCI 1 to the network device. DL DCI 1 may be a DCI format that schedules the PDSCH or a DCI format without DL assignment (DCI format without DL assignment) that does not schedule the PDSCH. The first slot to apply the UL TCI state indicated by DL DCI 1 is the first slot after Y symbols after the last symbol of ACK1, and the start time of this slot is denoted as t1. Assuming that DL DCI 2 is the first DL DCI indicated after DL DCI 1 and the UL TCI state indicated by DL DCI 2 is different from the UL TCI state indicated by DL DCI 1, in the same way, 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 (the first application time: application time 1) includes all slots from t1 to 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 (second application time: Application time 2) indicated by DL DCI 2 may be represented as all slots from t2 to t3, where t3 corresponds to the first slot to apply a UL TCI state different from the UL TCI state indicated by DL DCI 2, and the different UL TCI state is indicated by a DL DCI 3 (not shown in FIG. 2) located after DL DCI 2. To avoid out-of-order occurrences in downlink HARQ, for DL DCI 2 located after DL DCI 1, the associated ACK 2 is located after ACK 1 and cannot be located before ACK 1.

[0051] For a PUSCH scheduled by a UL DCI in the sDCI mTRP scenario, a terminal device with two SRS resource sets configured can determine the UL TCI state and SRS resource set used by the PUSCH by the following method, that is, the UL TCI state used by the PUSCH is the UL TCI state within the application time where the PUSCH is located (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 sTRP PUSCH and mTRP PUSCH). However, when the UL DCI and the PUSCH it schedules are in different application times respectively, 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 and possibly causing PUSCH transmission failure.

[0052] FIG. 3 exemplarily illustrates the above problem. FIG. 3 is a diagram showing another signaling transmission process in an embodiment of the present invention. Here, the description of the same content as in FIG. 2 is omitted. As shown in FIG. 3, two UL TCI states are scheduled within operation time 1 of DL DCI 1, one UL TCI state is scheduled within operation time 2 of DL DCI 2, and at least one PUSCH transmission is scheduled by one UL DCI within operation time 1. The UL DCI is within the operation time (operation time 1) of two UL TCI states, and at least one PUSCH is within the operation time (operation time 2) of one UL TCI state. Hereinafter, PUSCH refers to the PUSCH within operation time 2. The number of UL TCI states is 2 at the scheduling time of the UL DCI. The network device cannot predict that the UL TCI state will become 1 in the future (at time t2). For example, a URLLC service that needs to be scheduled by DL DCI 2 suddenly appears, and DL DCI 2 can thereby indicate an updated UL TCI state. Therefore, the SRS resource set indicator field of the UL DCI is still determined based on the hypothesis of two UL TCI states. Assume that the SRS resource set indicator field instructs the terminal device to 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 directly adopted, the following can occur, that is, the PUSCH uses one UL TCI state within operation time 2 and uses the two SRS resource sets indicated by the UL DCI. In such a 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, incorrect settings or undefined behaviors may occur due to the above-mentioned method, and the terminal device does not know how to transmit PUSCH. On the other hand, regarding which SRS resource set to be based on for PUSCH transmission, the terminal device and the network device cannot be made to have the same understanding of this by the above-mentioned method. When their understandings are inconsistent, it may lead to the failure of PUSCH demodulation.

[0053] Therefore, when the UL DCI and the PUSCH it schedules are in different operating times respectively, 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 are problems to be solved.

[0054] For at least one of the above problems, embodiments of the present invention provide an uplink data transmission, uplink data reception method and apparatus.

[0055] <Embodiment of the first aspect> Embodiments of the present invention provide an uplink data transmission method, which is applied to the terminal device side, and two SRS resource sets are set for the terminal device.

[0056] FIG. 4 is a diagram showing an uplink data transmission method in an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps (operations): 401: The terminal device receives third downlink control information for scheduling uplink data within a first operating time, wherein at least a part of the uplink data is within a second operating time; and 402: 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 activation time, the terminal device determines 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 activation time.

[0057] It should be noted that the above Figure 4 is for illustrative explanation of the embodiments of the present invention, taking a terminal device as an example, but the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, some operations can be increased or decreased, or the object of the above operations can be adjusted. Those skilled in the art can appropriately modify based on the above content without being limited to the description of Figure 4 above.

[0058] In some embodiments, the terms "TRP" and "SRS resource set" are interchangeable. The terms "TRP" and "CSI-RS resource set" are interchangeable. The terms "corresponding", "associated" and "including" are interchangeable, and "uplink TCI state" and "joint TCI state" are interchangeable. The terms "PUSCH", "PUSCH transmission" and "PUSCH sending" are interchangeable, and "DL TCI state" or "UL TCI state" may be indicated by "joint DL / UL TCI state", may be indicated by "separate DL / UL TCI state", "DL TCI state" may be "DL only TCI state", may be "joint TCI state", "UL TCI state" may be "UL only TCI state", may be "joint TCI state", "TPMI" refers to the information indicated by the "Precoding information and number of layers" field or the "Second Precoding information" field in DCI, including precoding matrix information and number of layers information, and the above fields may be abbreviated as "TPMI field". It should be noted that the above are only examples, and the embodiments of the present invention are not limited thereto.

[0059] Thereby, the terminal device determines the relevant parameters for uplink data transmission within the second operation time based on the parameters indicated by the third downlink control information and / or at least one uplink transmission setting indication state (UL TCI state) corresponding to the second operation time. In this way, the ambiguity in the use of the relevant parameters for uplink data transmission can be avoided, so that the uplink data transmission failure due to this ambiguity can be avoided.

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

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

[0062] In some embodiments, the second downlink control information indicates at least one uplink transmission setting indication state (UL TCI state) corresponding to the second operation time.

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

[0064] In some embodiments, the third downlink control information may be UL DCI and may also be referred to as an uplink 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 the scheduled uplink data. For example, the parameters include at least one of an SRS resource set, an SRS resource, and a transmit precoding matrix indicator (TPMI). In some embodiments, 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 embodiments, the uplink data includes at least one of the following uplink data types, namely, PUSCH repetition Type A; PUSCH repetition Type B; and PUSCH for multi-panel simultaneous transmission.

[0067] In some embodiments, in the scenario of sDCI mTRP, the PUSCH may be a single PUSCH or a PUSCH repetition.

[0068] For example, for the specific transmission methods of PUSCH repetition Type A and PUSCH repetition Type B, reference may be made to the relevant parts of the standard TS 38.214 V17.1.0, which are not limited in the present invention.

[0069] In some embodiments, 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 showing 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] Based on some embodiments, sTRP PUSCH refers to the sTRP PUSCH transmission performed by a terminal device in which two SRS resource sets are configured, and sTRP PUSCH is equivalent to PUSCH based on one SRS resource set or PUSCH based on one UL TCI state.

[0073] Based on some embodiments, the terminal device receives a DL DCI that indicates one UL TCI state, and uses the UL TCI state to perform sTRP PUSCH transmission.

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

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

[0076] FIG. 7 is a diagram showing another signaling transmission process in an embodiment of the present invention.

[0077] Hereinafter, the description will be made taking FIG. 7 as an example. Without loss of generality, FIG. 7 shows only the operation time 1 (first operation time), operation time 2 (second operation time), UL DCI within operation time 1, and PUSCH within operation time 2.

[0078] For example, two SRS resource sets are configured for the terminal device. Within operation time 1, the number of active UL TCI states may be one or two. Given that the UL TCI state is 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. Within operation time 2, the number of active UL TCI states may be one or two, different from the UL TCI states within operation time 1. Table 1 below shows all possible combinations of UL TCI states within different operation times, including Case 1 to Case 4. The UL TCI states within operation time 2 are different from those within operation time 1. From operation time 1 to operation time 2, for Case 1 and Case 2, the number of UL TCI states changes, and for Case 3 and Case 4, the number of UL TCI states does not change. The UL DCI gives instructions for the SRS resource set, SRS resource, and TPMI based on the UL TCI states within operation time 1.

[0079] Table 1: Possible combinations of UL TCI states within different operation times.

[0080]

Table 1

[0081] In some embodiments, the uplink data within the second operation time is transmitted using some or all of at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time.

[0082] In some embodiments, when the parameter indicated by the third downlink control information includes one SRS resource set, uplink data transmission (sTRP PUSCH transmission) based on a single transmission and reception point (sTRP) is performed for the uplink data within the second operation time; when the parameter includes a plurality of SRS resource sets, uplink data transmission (mTRP PUSCH transmission) based on multiple transmission and reception points (mTRP) is performed for the uplink data within the second operation time.

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

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

[0085] For example, as shown in Case 1, the number of UL TCI states changes from two within operation time 1 to one within operation time 2. However, since the UL DCI indicates mTRP PUSCH transmission based on operation time 1, the terminal device still performs mTRP PUSCH transmission within operation time 2 and does not switch to sTRP PUSCH transmission. As shown in Case 2, the number of UL TCI states changes from one within operation time 1 to two within operation time 2. However, since the UL DCI indicates sTRP PUSCH transmission based on operation time 1, the terminal device still performs sTRP PUSCH transmission within operation time 2 and does not switch to mTRP PUSCH transmission.

[0086] In some embodiments, among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time, the uplink transmission configuration indication state (UL TCI state) associated with the parameter indicated by the third downlink control information is used, or among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time, the pre-defined uplink transmission configuration indication state (UL TCI state) is used to transmit uplink data within the second operation time.

[0087] In some embodiments, 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 activation time.

[0088] Based on some embodiments, the terminal device uses some or all of the UL TCI states within the second activation time during the second activation time.

[0089] For example, in the case of Case 2, the terminal device determines to perform sTRP PUSCH transmission within activation time 2 based on the SRS resource set, SRS resource, and TPMI indicated by the UL DCI. There are two UL TCI states within activation time 2, and the terminal device uses one of the UL TCI states to perform sTRP PUSCH transmission.

[0090] For example, in the cases of Case 3 and Case 4, the number of UL TCI states in activation time 1 and activation time 2 is the same. Regardless of whether it is based on the UL DCI or the UL TCI states within activation time 2, the PUSCH transmission mode (sTRP PUSCH or mTRP PUSCH) within activation time 2 determined by the terminal device is the same as the PUSCH transmission mode within activation time 1. Therefore, all UL TCI states within activation time 2 are used.

[0091] Based on some embodiments, the terminal device uses some of the UL TCI states within the second activation time during the second activation time. The terminal device determines the UL TCI state based on one of the following, that is, The UL TCI state associated with the SRS resource set; and The default (predefined) UL TCI state.

[0092] For example, within the second action time, there are two UL TCI states, and the terminal device 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", that is, the second UL TCI state, is used.

[0093] For example, the terminal device uses the default (pre-defined) UL TCI state, that is, the first UL TCI state among the two UL TCI states.

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

[0095] For example, in the case of Case 1 - Case 4, how to transmit uplink data within the second action time using at least one of the following information among the parameters, that is, SRS resource set; SRS resource; and TPMI will be described later. For example, reference can be made to Method 1 in FIGS. 8 - 11.

[0096] Based on some embodiments, at least one of SRS resource set, SRS resource, and TPMI is indicated by the 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] Based on some embodiments, the terminal device determines to perform sTRP PUSCH transmission or mTRP PUSCH transmission within the second action time based on the UL TCI state within the second action time.

[0102] For example, when there are two UL TCI states within the second action time, the terminal device performs mTRP PUSCH transmission, and when 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 within action time 1 to one within 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 within action time 1 to two within action time 2, the terminal device switches to mTRP PUSCH transmission within action time 2.

[0104] First, the following will be briefly introduced: "including the parameters indicated by the third downlink control information and / or at least one of the following pre-defined information, namely, SRS resource set; SRS resource; or TPMI". In the case of Case 1 - Case 4, how to use at least one of the information indicated by the parameters included in the third downlink control information and / or the following pre-defined information, namely, SRS resource set; SRS resource; or TPMI, to transmit uplink data within the second action time will be described later. For example, other methods other than Method 1 in FIGS. 8 - 11 can be referred to.

[0105] In some embodiments, the uplink data within the second action time is transmitted using at least one of the information indicated by the parameters included in the third downlink control information and / or the following pre-defined information, namely, SRS resource set; SRS resource; and TPMI.

[0106] In some embodiments, at least one of the following pre-defined information, namely, SRS resource set; SRS resource; and TPMI, is determined based on one of the following, namely, Two configured SRS resource sets; One SRS resource set at a specific position among the two configured SRS resource sets; One SRS resource at a specific position among at least one SRS resource within one SRS resource set; The first SRS resource with the minimum number of SRS ports among at least one SRS resource within one SRS resource set; and One TPMI at a specific position among at least one available TPMI of one SRS resource.

[0107] For example, the SRS resource set, SRS resource, or TPMI used by the terminal device within the second operation time is determined based on one of the following, namely, The SRS resource set, SRS resource, or TPMI indicated by UL DCI; The default (pre-defined) SRS resource set, SRS resource, or TPMI.

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

[0109] For example, based on the UL TCI state within the second operation time, the terminal device determines to perform sTRP PUSCH transmission or mTRP PUSCH transmission within the second operation time, and uses the default (pre-defined) SRS resource set, SRS resource, and TPMI within the second operation time.

[0110] For example, the terminal device determines one or two SRS resource sets to be used within the second operation time. For example, in the case of one UL TCI state, one SRS resource set is used, and in the case of two UL TCI states, two SRS resource sets are used. Here, it is only for simple explanation, and for how to determine the above SRS resource set, the methods in the subsequent Case 1 - Case 4 can be referred to. For any one SRS resource set, when the UL DCI indicates the SRS resource and TPMI associated with it, the SRS resource and TPMI indicated by the UL DCI are used; when the UL DCI does not indicate the SRS resource and TPMI associated with it, the default (pre-defined) SRS resource and TPMI are used.

[0111] Based on some embodiments, the two default (pre-defined) SRS resource sets are the two configured SRS resource sets.

[0112] For example, the terminal device performs mTRP PUSCH transmission within the second operation time and uses two default (pre-defined) SRS resource sets, and these two default (pre-defined) SRS resource sets are the two SRS resource sets for mTRP PUSCH transmission configured by RRC signaling.

[0113] Based on some embodiments, one default (pre-defined) SRS resource set is the first or second SRS resource set out of the two configured SRS resource sets.

[0114] For example, the terminal device performs sTRP PUSCH transmission within the second operation time, using one default (pre-defined) SRS resource set, and the default (pre-defined) SRS resource set is the first SRS resource set out of the two configured SRS resource sets.

[0115] Based on some embodiments, one default (pre-defined) SRS resource is the first SRS resource among the SRS resources.

[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 operation time, using one default (pre-defined) SRS resource in each SRS resource set, and the default (pre-defined) SRS resource is the first SRS resource in the SRS resource set where it is located.

[0117] Based on some embodiments, one default (pre-defined) SRS resource is the first SRS resource in the SRS resource set with the smallest number of SRS ports.

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

[0119] Based on some embodiments, one default (pre-defined) TPMI is the first TPMI among the available TPMIs of the SRS resource.

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

[0121] Based on some embodiments, the following information associated with the uplink transmission configuration indication state (UL TCI state) within the second operation time, namely, at least one of SRS resource set; SRS resource; and TPMI, is used to transmit uplink data within the second operation time.

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

[0123] Hereinafter, examples will be given and explained regarding the determination of uplink data-related parameters for each case.

[0124] For Case 1 to Case 4, any combination of the above-mentioned methods may be used to determine the UL TCI state, SRS resource set, SRS resource, and TPMI. An exemplary description thereof is given below.

[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] FIG. 8 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. FIG. 8 exemplarily shows a method for determining the UL TCI state, SRS resource set, SRS resource, and TPMI for PUSCH within Action Time 2 of Case 1.

[0127] Based on 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 the one UL TCI state within the second action time, and the UL TCI state associated with the second SRS resource set is the one UL TCI state within the second action time.

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

[0129] In the case of Method 1, within operation time 2, PUSCH uses two SRS resource sets, two SRS resources, and two TPMIs indicated by UL DCI, that is, the same as operation time 1. PUSCH uses one UL TCI state within operation time 2, that is, UL TCI state 1-2 (for example, indicated by DL DCI 2 in FIG. 3). The terminal device considers that the two UL TCI states associated with the two SRS resource sets are the same, both being UL TCI state 1-2. From operation time 1 to operation time 2, although the number of UL TCI states changes from two to one, the terminal device does not switch to sTRP PUSCH transmission within operation time 2 and still performs mTRP PUSCH transmission, only considering that the two UL TCI states of mTRP PUSCH are the same, both being UL TCI state 1-2.

[0130] Based on some embodiments, when 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 uses at least one of the following information included in the parameters indicated by the third downlink control information (that is, SRS resource set; SRS resource; or, TPMI) to transmit uplink data within the second operation time.

[0131] In the case of Method 2, at operating time 2, for PUSCH, one UL TCI state within operating time 2 is used, i.e., UL TCI state 1-2 (e.g., indicated by DL DCI 2 in FIG. 3). The terminal device considers it as a switch to sTRP PUSCH transmission. PUSCH uses one default (pre-defined) SRS resource set (e.g., the first SRS resource set), i.e., SRS resource set 1. Since one SRS field in the UL DCI indicates the SRS resource in SRS resource set 1, i.e., SRS resource 1, PUSCH uses the SRS resource 1 indicated by the UL DCI. Also, since one TPMI field in the UL DCI indicates the TPMI associated with SRS resource 1, i.e., TPMI 1, PUSCH uses the TPMI 1 indicated by the UL DCI. Similarly, the above-mentioned default (pre-defined) SRS resource set could be SRS resource set 2. Correspondingly, PUSCH uses SRS resource 2 and TPMI 2, which are not shown for simplicity. From operating time 1 to operating time 2, since the number of UL TCI states changes from two to one, the terminal device switches to sTRP PUSCH transmission within operating time 2. The SRS resource set used is one default (pre-defined) SRS resource set (SRS resource set 1 or SRS resource set 2), and the SRS resource and TPMI used are those associated with the SRS resource set indicated by the UL DCI and indicated by the UL DCI.

[0132] Based on some embodiments, when 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 uses at least one of the following pre-defined information (i.e., SRS resource set; SRS resource; or TPMI) to transmit uplink data within the second operation time.

[0133] In the case of Method 3, based on the same method as Method 2, it is determined that PUSCH uses UL TCI state 1-2 and SRS resource set 1, and the terminal device considers it as a switch to sTRP PUSCH transmission. PUSCH uses one default (pre-defined) SRS resource (e.g., the first SRS resource) in SRS resource set 1, and PUSCH uses one default (pre-defined) TPMI. For example, the default (pre-defined) TPMI may be obtained in the following manner, that is, the number of SRS ports of the SRS resource is used as the number of antenna ports, and the available TPMI of the SRS resource can be obtained based on the number of antenna ports. TPMI includes the precoding matrix and the number of layers determined by the TPMI index, and PUSCH uses the first TPMI among the available TPMIs. Taking Table 7.3.1.1.2-2 in 3GPP TS 38.214 V17.1.0 as an example, this table shows all the available TPMIs of 4 antenna ports under some configurations. Among them, 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", that is, "1 layer: TPMI = 0".

[0134] Table 7.3.1.1.2-2: Precoding information, 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

[0136] Based on some embodiments, when 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 uses 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) to transmit uplink data within the second operation time.

[0137] In the case of Method 5 or Method 6, at operation time 2, PUSCH uses one UL TCI state within operation time 2, i.e., UL TCI state 1-2. The terminal device considers it as a switch to sTRP PUSCH transmission. 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. The terminal device uses SRS resource set 2 to transmit PUSCH. For the determination of SRS resource and TPMI, any one of the foregoing methods, such as Method 5, may be used. PUSCH uses one default (pre-defined) SRS resource (e.g., the first SRS resource) in SRS resource set 2, and PUSCH uses one default (pre-defined) TPMI (e.g., the first TPMI). Also, for example, Method 6 may be used. Since UL DCI has indicated the SRS resource and TPMI associated with SRS resource set 2, PUSCH uses SRS resource 2 and TPMI2 associated with SRS resource set 2 indicated by UL DCI.

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

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

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

[0141] In the case of Method 1, within Operation Time 2, PUSCH uses one SRS resource set, one SRS resource, and one TPMI indicated by UL DCI, that is, the same as Operation Time 1. In the figure, taking SRS resource set 2, SRS resource 2, and TPMI 2 as examples, PUSCH uses one of the two UL TCI states within Operation Time 2. This UL TCI state is the UL TCI state associated with SRS resource set 2 indicated by UL DCI, that is, UL TCI state 2-2. The terminal device is considered to perform sTRP PUSCH transmission. From Operation Time 1 to Operation Time 2, although the number of UL TCI states changes from one to two, the terminal device does not switch to mTRP PUSCH transmission within Operation Time 2 and still performs sTRP PUSCH transmission. Similarly, UL DCI can also indicate SRS resource set 1, SRS resource 1, and TPMI 1. Correspondingly, PUSCH uses UL TCI state 1-2, which is not shown in the figure for the sake of convenience.

[0142] Based on 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 uses at least one of the following information included in the parameters indicated by the third downlink control information and predefined (that is, SRS resource set; SRS resource; or, TPMI) to transmit uplink data within the second operation time.

[0143] In the case of Method 2, within Activation Time 2, PUSCH uses two UL TCI states within Activation Time 2, namely, UL TCI state 1-2 and UL TCI state 2-2. The terminal device is considered to switch 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, and PUSCH uses two SRS resource sets, namely, SRS resource set 1 and SRS resource set 2. For the SRS resource associated with SRS resource set 2, since one SRS field of UL DCI uses the SRS resource in SRS resource set 2, that is, SRS resource 2, PUSCH uses the SRS resource 2 indicated by UL DCI. For the SRS resource associated with SRS resource set 1, UL DCI does not indicate it, and PUSCH uses one default (pre-defined) SRS resource (for example, the first SRS resource) in SRS resource set 1. For the TPMI associated with SRS resource set 2, since one TPMI field of UL DCI indicates the TPMI associated with SRS resource 2, that is, TPMI 2, PUSCH uses the TPMI 2 indicated by UL DCI. For the TPMI associated with SRS resource set 1, UL DCI does not indicate it, and PUSCH uses one default (pre-defined) TPMI. For example, the default (pre-defined) TPMI can be obtained in the following way. That is, since the SRS resource associated with SRS resource set 1 is obtained, the default (pre-defined) TPMI is the first TPMI among the available TPMIs of the SRS resource.From the action time 1 to the action time 2, since the number of UL TCI states changes from 1 to 2, the terminal device switches to the mTRP PUSCH transmission within the action time 2. For the SRS resource set indicated by the UL DCI, the SRS resource and TPMI indicated by the UL DCI are used. For the SRS resource set not indicated by the UL DCI, the default (pre-defined) SRS resource and TPMI are used.

[0144] In the case of Method 3, the difference from Method 2 is how to determine one default (pre-defined) SRS resource and one default (pre-defined) TPMI for the SRS resource set 1. In Method 3, the default (pre-defined) SRS resource is the first SRS resource with the minimum number of SRS ports in the SRS resource set 1 (denoted as SRS resource F), and the default (pre-defined) TPMI is the first TPMI among the available TPMIs of the SRS resource F.

[0145] Based on some embodiments, when the uplink transmission configuration indication state (UL TCI state) corresponding to the second action time includes two uplink transmission configuration indication states (UL TCI states), the terminal device performs mTRP PUSCH transmission within the second action time and uses at least one of the following pre-defined information (i.e., SRS resource set; SRS resource; or, TPMI) to transmit uplink data within the second action time.

[0146] In the case of Method 4, at operation time 2, PUSCH uses two UL TCI states within operation time 2, namely, UL TCI state 1-2 and UL TCI state 2-2. The terminal device considers it as a switch to mTRP PUSCH transmission. PUSCH uses two SRS resource sets, namely, SRS resource set 1 and SRS resource set 2. The terminal device determines two default (pre-defined) SRS resources and two default (pre-defined) TPMIs for the two SRS resource sets. For example, for each SRS resource set, PUSCH uses the first SRS resource in that SRS resource set. For each SRS resource, PUSCH uses the first TPMI among the available TPMIs of that SRS resource.

[0147] In the case of Method 5, the difference from Method 4 lies in how to determine two default (pre-defined) SRS resources and two default (pre-defined) TPMIs for the two SRS resource sets. In Method 5, for each SRS resource set, PUSCH uses the first SRS resource with the minimum number of SRS ports within that SRS resource set. For each SRS resource, PUSCH uses the first TPMI among the available TPMIs of that SRS resource.

[0148] Based on 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 uses 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) to transmit uplink data within the second operation time.

[0149] In the case of Method 6, for Transmission Time Interval 2, PUSCH uses two UL TCI states within Transmission Time Interval 2. The terminal device considers it as a switch 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 any one of the aforementioned methods may be used. Therefore, Method 6 is equivalent to Method 4 or Method 5. For example, in FIG. 9, it 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. Here, an exhaustive enumeration is omitted.

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

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

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

[0153] In the case of Method 1, at active time 2, PUSCH uses two SRS resource sets, two SRS resources, and two TPMIs indicated by the UL DCI, that is, the same as active time 1, and the terminal device is considered to perform mTRP PUSCH transmission, and PUSCH uses two UL TCI states associated with the two SRS resource sets within active time 2, that is, UL TCI state 1-2 and UL TCI state 2-2 associated with SRS resource set 1 and SRS resource set 2 respectively.

[0154] Based on several embodiments, when the uplink transmission configuration indication state (UL TCI state) corresponding to the second active time includes two uplink transmission configuration indication states (UL TCI state), the terminal device performs mTRP PUSCH transmission within the second active time, and uses at least one of the following pre-defined information (that is, SRS resource set; SRS resource; or, TPMI) to transmit uplink data within the second active time.

[0155] In the case of Method 2, PUSCH uses two UL TCI states within the active time 2. Since 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 (pre-defined) SRS resources and two default (pre-defined) TPMIs for the two SRS resource sets. For example, for each SRS resource set, PUSCH uses the first SRS resource in the SRS resource set, and for each SRS resource, PUSCH uses the first TPMI among the available TPMIs of the SRS resource.

[0156] In the case of Method 3, the difference from Method 2 lies in how to determine two default (pre-defined) SRS resources and two default (pre-defined) TPMIs for the two SRS resource sets. In Method 3, for each SRS resource set, PUSCH uses the first SRS resource with the minimum number of SRS ports within the SRS resource set, and for each SRS resource, PUSCH uses the first TPMI among the available TPMIs of the SRS resource.

[0157] Based on several embodiments, when the uplink transmission configuration indication state (UL TCI state) corresponding to the second active time includes two uplink transmission configuration indication states (UL TCI states), the terminal device performs mTRP PUSCH transmission within the second active time and uses 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) to transmit uplink data within the second active time.

[0158] In the case of Method 4, within the operation time 2, PUSCH uses two UL TCI states within the operation time 2. The terminal device considers it as a switch 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 any one of the above methods may be used. Therefore, Method 4 may be equivalent to Method 2 or Method 3. For example, in FIG. 10, Method 4 shows using 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. Here, an exhaustive enumeration is omitted.

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

[0160] FIG. 11 is a diagram showing an example of the method for determining uplink data related parameters in Case 4 in an embodiment of the present invention. Taking the example that the UL DCI indicates SRS resource set 2, SRS resource 2, and TPMI 2, FIG. 11 exemplarily shows the method of determining the UL TCI state, SRS resource set, SRS resource, and TPMI for PUSCH within the operation time 2 of Case 4.

[0161] Based on several embodiments, when there is one UL TCI state within the second operation time, the terminal device performs sTRP PUSCH transmission based on the parameters indicated by the third downlink control information within the second operation time, and uses the one uplink transmission configuration indication state (UL TCI state) to transmit uplink data within the second operation time. In the case of Method 1, in operation time 2, PUSCH uses one SRS resource set, one SRS resource, and one TPMI indicated by UL DCI, that is, the same as in operation time 1, and the terminal device is considered to perform sTRP PUSCH transmission. Since there is only one UL TCI state within operation time 2, that is, UL TCI state 1-2, the terminal device uses this UL TCI state to transmit PUSCH.

[0162] Based on several embodiments, when 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 uses at least one of the following pre-defined information (that is, SRS resource set; SRS resource; or, TPMI) to transmit uplink data within the second operation time.

[0163] In the case of Method 2, PUSCH performs sTRP PUSCH transmission using one UL TCI state within operation time 2, and the terminal device determines one default (pre-defined) SRS resource set, one default (pre-defined) SRS resource, and one default (pre-defined) TPMI. For example, PUSCH uses the first SRS resource set, that is, SRS resource set 1, uses the first SRS resource (denoted as SRS resource F) in SRS resource set 1, and uses the first TPMI among the available TPMIs of the SRS resource F.

[0164] In the case of Method 3, the difference from Method 2 lies in how to determine one default (pre - defined) SRS resource and one default (pre - defined) TPMI. In Method 3, PUSCH uses the first SRS resource with the smallest number of SRS ports within SRS resource set 1, and uses the first TPMI among the available TPMIs of this SRS resource.

[0165] Based on some embodiments, when the uplink transmission configuration indication state (UL TCI state) corresponding to the second active time includes one uplink transmission configuration indication state (UL TCI state), the terminal device performs sTRP PUSCH transmission within the second active time, and uses 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) to transmit uplink data within the second active time.

[0166] In the case of Method 4, within Transmission Time Interval 2, PUSCH uses one UL TCI state within Transmission Time Interval 2, i.e., UL TCI state 1-2. The terminal device considers it as a switch to sTRP PUSCH transmission. 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. The terminal device uses SRS resource set 1 to transmit PUSCH. For the determination of SRS resource and TPMI, any one of the above-mentioned methods can be used. Therefore, Method 4 is equivalent to Method 2 or Method 3. For example, in Figure 11, it shows that Method 4 uses the method of determining SRS resource and TPMI in Method 3. Or Method 4 can also use the method of determining SRS resource and TPMI in Method 2. Here, an exhaustive enumeration is omitted.

[0167] Above, the PUSCH transmission based on the codebook has been described by taking an example. Next, the PUSCH transmission based on non-codebook will be described.

[0168] For the non-codebook based PUSCH, since TPMI does not need to be indicated, there is no TPMI field in UL DCI. The SRS port number of all SRS resources in one SRS resource set is 1. "The first SRS resource in the SRS resource set" is equivalent to "the first SRS resource in the SRS resource set with the minimum SRS port number".

[0169] In some embodiments, for non-codebook based PUSCH transmission, relevant parameters can still be determined based on the methods described in FIGS. 8 to 11. For example, by deleting the rows where the TPMI is located in FIGS. 8-11 and deleting the columns where the "first SRS resource with the minimum number of SRS ports" is located in FIGS. 8-11, a method suitable for non-codebook based PUSCH transmission can be obtained, and the detailed description thereof is omitted here.

[0170] In some embodiments, uplink data within the second operation time is transmitted using some or all of the uplink transmission configuration indication states (UL TCI states) corresponding to the first operation time.

[0171] In some embodiments, among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the first operation time, the uplink transmission configuration indication state (UL TCI state) associated with the parameters 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 the PUSCH transmission related parameters within the second operation time based on the parameters indicated by the third downlink control information, and the terminal device determines whether to perform sTRP PUSCH transmission or mTRP PUSCH transmission based on the number of UL TCI states indicated by the first downlink control information or the parameters indicated by the third downlink control information, for example, the number of SRS resource sets.

[0173] For example, even if there is a UL TCI state updated within the second operation time (for example, DL DCI 2 in FIG. 3 indicates the updated UL TCI state), the terminal device does not use the updated UL TCI state and still performs PUSCH transmission in the same manner as when UL DCI and PUSCH are in the first operation time, that is, it ignores the existence of the second operation time.

[0174] For example, DL DCI 1 in FIG. 3 indicates UL TCI state1-1. Within the second operation time, on the premise that UL TCI state 1-1 is used to transmit uplink data and DL DCI 1 indicates UL TCI state1-1, UL DCI indicates the SRS resource set 1 corresponding to UL TCI state1-1, the terminal device performs sTRP PUSCH transmission, and performs sTRP PUSCH transmission based on at least one of SRS resource set 1, SRS resource 1, or TPMI 1 indicated by UL DCI. When DL DCI 1 indicates two UL TCI states, the uplink data transmission method is the same as the above method, and the detailed description is omitted here.

[0175] After determining the above PUSCH transmission related parameters, hereinafter, how to transmit PUSCH will be described.

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

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

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

[0179] FIG. 12 is a diagram showing PUSCH transmission in an embodiment of the present invention. For example, for PUSCH repetition type B, the PUSCH repetition spans over activation time 1 and activation time 2. The start time of activation time 2 is t2, among which, one nominal repetition (nominal repetition j) spans over t2, that is, spans over the 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 within activation time 2. For the PUSCH repetition before nominal repetition k, it uses the UL TCI state, SRS resource set, SRS resource, and TPMI within activation time 1.

[0180] FIG. 13 is a diagram showing another PUSCH transmission in an embodiment of the present invention. FIG. 13 exemplarily shows the case where the PUSCH spans over three activation times, and the same description as in FIG. 12 is omitted. For PUSCH repetition type B, nominal repetition k is the first nominal repetition after the start time t2 of activation time 2, and nominal repetition i is the first nominal repetition after the start time t3 of activation time 3. Therefore, from nominal repetition k to nominal repetition h, the UL TCI state, SRS resource set, SRS resource, and TPMI within activation time 2 are used, and from nominal repetition i to the last nominal repetition in the figure, the UL TCI state, SRS resource set, SRS resource, and TPMI within activation time 3 are used.

[0181] In some embodiments, when two uplink transmission configuration indication states (UL TCI states) and / or SRS resource sets are used for uplink data transmission, 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.

[0182] In some embodiments, the predefined order is the first uplink transmission configuration indication state (UL TCI state) and / or SRS resource set first, and then the second uplink transmission configuration indication state (UL TCI state) and / or SRS resource set, or the second uplink transmission configuration indication state (UL TCI state) and / or SRS resource set first, and then the first uplink transmission configuration indication state (UL TCI state) and / or SRS resource set.

[0183] Based on some examples, for PUSCH repetitions spanning at least two active times, from the first nominal repetition after the start time of the second active time, the UL TCI state and / or SRS resource set within the active time are associated with or mapped to K nominal repetitions, where the start times of all K nominal repetitions are within the active time, and are also referred to as the K nominal repetitions within the active time.

[0184] For example, within some active times, the association between the UL TCI state and / or SRS resource set and the nominal repetition is determined independently within each active time, that is, the association or mapping is performed again within each active time.

[0185] For example, when the number of UL TCI states changes from 1 to 2 or from 2 to 1 between active time 1 and active time 2, the previously determined association cannot be applied, and within active time 2, it is necessary to re - perform the association or mapping.

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

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

[0188] Based on some embodiments, when there are two UL TCI states and / or two SRS resource sets within the second active time, the two UL TCI states and / or two SRS resource sets are mapped to K nominal repetitions according to a predefined order. Among them, 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, between active time 1 and active time 2, the terminal device changes from performing sTRP PUSCH transmission to performing mTRP PUSCH transmission. Since the UL DCI determined based on active time 1 does not indicate the mapping order of the mTRP PUSCH, the terminal device maps the two UL TCI states and / or two SRS resource sets to K nominal repetitions according to the predefined order.

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

[0191] For example, the number of UL TCI states within the operation time 1 is 2. Based on the indication of the UL DCI, the terminal device maps the first (#1) and the second (#2) UL TCI states and the SRS resource set to K = 8 nominal repetitions in the order of #2, #1, #2, #1, #2, #1, #2, #1. At a certain time later, when the DL DCI indicates two different UL TCI states within the operation time 2, causing the latter 4 nominal repetitions to be in the operation time 2, the terminal device maps the latter 4 nominal repetitions in the order of #1, #2, #1, #2 (pre-defined order). Overall, it corresponds to mapping the 8 nominal repetitions in the order of #2, #1, #2, #1, #1, #2, #1, #2.

[0192] In some embodiments, 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 repetition).

[0193] Based on 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 SRS resource set is mapped to K nominal repetitions.

[0194] For example, when one UL TCI state associated with SRS resource set 2 changes to a different UL TCI state from the action time 1 to the action time 2, or when 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 within the 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 embodiments, the mapping method of the SRS resource set and the uplink repetition (PUSCH repetition) determined based on the third downlink control information is used for the K uplink repetitions.

[0196] Based on some embodiments, for the PUSCH repetition spanning at least two action times, within the second action time, the mapping method from the SRS resource set to the nominal repetition determined within the previous first action time is continuously used, but the UL TCI state within the second action time is mapped to the nominal repetition within the second action time.

[0197] For example, the number of UL TCI states within an operation time 1 is 2. Based on the indication of the UL DCI, the terminal device maps the first (#1) and second (#2) UL TCI states and SRS resource sets to K = 8 nominal repetitions in the order of #2, #1, #2, #1, #2, #1, #2, #1. At a certain time later, when the DL DCI indicates two different UL TCI states within the operation time 2 to make the last four nominal repetitions be in the operation time 2, the terminal device 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 within the operation time 2. Overall, it maps the two SRS resource sets to K = 8 nominal repetitions in the order of #2, #1, #2, #1, #2, #1, #2, #1, maps the two UL TCI states within the operation time 1 to the first four nominal repetitions in the order of #2, #1, #2, #1, and maps the two UL TCI states within the operation time 2 to the last four nominal repetitions in the order of #2, #1, #2, #1.

[0198] Based on some embodiments, the foregoing nominal repetition may be replaced with a symbol, or a slot, or an actual repetition, and other same descriptions are omitted.

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

[0200] FIG. 14 and FIG. 15 exemplarily show this. FIG. 14 is a diagram showing other PUSCH transmissions in an embodiment of the present invention. FIG. 15 is a diagram showing other PUSCH transmissions in an embodiment of the present invention.

[0201] As shown in FIGS. 14 and 15, from the first symbol after the start time t2 of the active time 2, the PUSCH uses the UL TCI state and the SRS resource set within the active time 2. In FIG. 14, PUSCH repetition type A is taken as an example. In such a case, "from the first symbol after t2" is equivalent to "from the first slot after t2". In FIG. 15, PUSCH repetition type B is taken as an example. Since one nominal repetition straddles the slot boundary t2, it is divided into two actual repetitions (j, k). In such a 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 active time, the two UL TCI states and / or the two SRS resource sets are mapped to K' actual repetitions within the second active time according to a predefined order.

[0203] FIG. 15 exemplarily shows this. From the first actual repetition after t2, the two UL TCI states and / or the two SRS resource sets are mapped to K' actual repetitions within the active time 2. The mapping method is the same as described above, and it is only necessary to replace the previous "nominal repetition" with "actual repetition".

[0204] The above embodiments are for illustrative purposes to explain the embodiments of the present invention. However, the present invention is not limited thereto, and furthermore, appropriate modifications can be made based on the above embodiments. For example, each of the above embodiments can be used alone, or a plurality of the above embodiments can be combined and used.

[0205] As can be seen from the above embodiments, the terminal device determines the relevant parameters for uplink data transmission within the second action time 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 time. Thereby, the ambiguity in the use of the relevant parameters for uplink data transmission can be avoided, so that the uplink data transmission failure due to this ambiguity can be avoided.

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

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

[0208] Thereby, the terminal device transmits uplink data only within the first operation time, and can determine at least one of the related parameters associated with the uplink data, such as the SRS resource set, SRS resource, and TPMI. Thereby, ambiguity in the use of related parameters for uplink data transmission can be avoided, and uplink data transmission failure due to this ambiguity can be avoided.

[0209] Note that for specific limitations of the above contents such as "first operation 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 can be made to the embodiments of the first aspect, and detailed description thereof is omitted here.

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

[0211] It should be noted that FIGS. 16-17 described above are for exemplarily explaining the embodiments of the present invention, taking the terminal device as an example, but the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, several operations can be increased or decreased, or the object of the above operations can be adjusted. Those skilled in the art can appropriately deform based on the above content without being limited to the descriptions of FIGS. 16-17 above.

[0212] The above-described embodiments are for exemplarily explaining the embodiments of the present invention, but the present invention is not limited thereto, and further, appropriate deformations can also be made based on the above-described embodiments. For example, each of the above-described embodiments can be used alone, or a plurality of the above-described embodiments can be used in combination.

[0213] As can be seen from the above embodiments, the terminal device transmits uplink data only within the first action time, and can determine at least one of the related parameters associated with the uplink data, such as SRS resource set, SRS resource, and TPMI. Thereby, the ambiguity in the use of the related parameters for uplink data transmission can be avoided, so that the uplink data transmission failure due to this ambiguity can be avoided.

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

[0215] FIG. 18 is a diagram showing another uplink data transmission method in the embodiments of the present invention. As shown in FIG. 18, the method includes the following steps (operations), that is, 1801: The terminal device receives third downlink control information for scheduling uplink data within the first action time, wherein at least a part of the uplink data is within the second action time; and 1802: The terminal device does not transmit the uplink data within the second action time.

[0216] Thereby, the terminal device transmits uplink data only 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, the ambiguity in the use of the related parameters for uplink data transmission can be avoided, so that the uplink data transmission failure due to this ambiguity can be avoided.

[0217] Regarding the specific limitations of the above content such as the "first action time" and "third downlink control information", reference can be made to the embodiments of the first aspect, and detailed descriptions thereof are omitted here. For example, the relevant parameters of the uplink data within the first action time can be determined with reference to the embodiments of the above second scheme.

[0218] FIG. 19 is a diagram showing another signaling transmission process in an embodiment of the present invention. For example, as shown in FIG. 19, within the action time (the first action time: action time 1 (Application time 1)) of the UL TCI state indicated by DL DCI 1, the terminal device uses the UL TCI state (for example, the UL TCI state indicated by DL DCI 1) within the action time, and based on the SRS resource set indicator field of the UL DCI, determines the SRS resource set, UL TCI state, and SRS resource set; and, based on the SRS resource set, determines whether it is the transmission of the sTRP-based PUSCH or the transmission of the mTRP-based PUSCH, whereby the relevant parameters associated with the uplink data can be determined. Also, within the second action time (Application time 2), the terminal device drops the PUSCH, that is, does not transmit the PUSCH within the second action time. Thereby, the ambiguity in the use of the relevant parameters for uplink data transmission can be avoided, and thus the uplink data transmission failure due to this ambiguity can be avoided.

[0219] It should be noted that the above FIGS. 18-19 are for illustrative explanation of the embodiments of the present invention, taking the terminal device as an example, but the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, several operations can be increased or decreased, or the object of the above operations can be adjusted. Those skilled in the art can appropriately deform the above content based on the above description without being limited to the description of FIGS. 18-19.

[0220] The above embodiments are for illustrative purposes to explain the embodiments of the present invention, but the present invention is not limited thereto, and further, appropriate modifications can be made based on the above embodiments. For example, each of the above embodiments can be used alone, or a plurality of the above embodiments can be combined and used.

[0221] As can be seen from the above embodiments, since the terminal device transmits uplink data only within the first action time and does not transmit uplink data within the second action time, relevant parameters associated with the uplink data within the first action time can be determined. Thereby, ambiguity in the use of relevant parameters for uplink data transmission can be avoided, and thus uplink data transmission failure due to this ambiguity can be avoided.

[0222] <Embodiment of the Fourth Aspect> In an embodiment of the present invention, an uplink data reception method is provided, which is applied to the network device side. The embodiments of the present invention can be used in combination with the embodiments of the first aspect or can be implemented alone. Here, the description of the same content as in the embodiments of the first aspect is omitted.

[0223] FIG. 20 is a diagram showing an uplink data reception method in an embodiment of the present invention. As shown in FIG. 20, the method includes the following steps (operations), that is, 2001: The network device transmits third downlink control information for scheduling uplink data to the terminal device within the first action time, wherein at least a part of the uplink data is within the second action time, and two SRS resource sets are set for the terminal device; and In 2002: The network device receives uplink data within the second operation time. Among them, 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 operation time, for the uplink data within the second operation time, it is determined to perform uplink data transmission based on a single transmission and reception point (sTRP), or to perform uplink data transmission based on a multiple transmission and reception point (mTRP).

[0224] It should be noted that the above-mentioned Figure 20 is for illustrative purposes to explain the embodiments of the present invention, but the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or several operations can be increased or decreased. Those skilled in the art can appropriately deform based on the above content without being limited to the description of the above-mentioned Figure 20.

[0225] The above-mentioned embodiments are for illustrative purposes to explain the embodiments of the present invention, but the present invention is not limited thereto, and furthermore, appropriate deformations can also be made based on the above-mentioned embodiments. For example, each of the above-mentioned embodiments can be used alone, or a plurality of the above-mentioned embodiments can be combined and used.

[0226] As can be seen from the above-mentioned embodiments, the terminal device determines the relevant parameters for uplink data transmission within the second operation time 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 operation time. Thereby, the ambiguity in the use of the relevant parameters for uplink data transmission can be avoided, so that the uplink data transmission failure caused by this ambiguity can be avoided.

[0227] <Embodiment of the Fifth Aspect> In an embodiment of the present invention, an uplink data receiving method is provided, which is applied to the network device side. The embodiments of the present invention can be used in combination with the embodiments of the first aspect or can be implemented alone. Here, the description of the same content as that of the embodiments of the second aspect is omitted.

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

[0229] It should be noted that the above FIG. 21 is for illustrative explanation of the embodiments of the present invention, but the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or several operations can be increased or decreased. Those skilled in the art can appropriately modify the above content based on the above description without being limited to the description of FIG. 21 above.

[0230] The above embodiments are for illustrative purposes to explain the embodiments of the present invention. However, the present invention is not limited thereto, and furthermore, appropriate modifications can be made based on the above embodiments. For example, each of the above embodiments can be used alone, or a plurality of the above embodiments can be used in combination.

[0231] As can be seen from the above embodiments, the terminal device transmits uplink data only within the first action time, and can determine at least one of the related parameters associated with the uplink data, such as an SRS resource set, an SRS resource, and a TPMI. Thereby, the ambiguity in the use of the related parameters for uplink data transmission can be avoided, so that the uplink data transmission failure due to this ambiguity can be avoided.

[0232] <Embodiment of the sixth aspect> In the embodiments of the present invention, an uplink data reception method is provided, which is applied to the network device side. The embodiments of the present invention can be used in combination with the embodiments of the first aspect, or can be implemented alone. Here, the description of the same content as in the embodiments of the third aspect is omitted.

[0233] FIG. 22 is a diagram showing another uplink data reception method in the embodiments of the present invention. As shown in FIG. 22, the method includes the following operations (steps), that is, 2201: The network device transmits third downlink control information for scheduling uplink data to the terminal device within the first action time, wherein at least a part of the uplink data is within the second action time, and two SRS resource sets (SRS resource set) are set for the terminal device; and 2202: The network device does not receive the uplink data within the second action time within the second action time, wherein the terminal device does not transmit the uplink data within the second action time.

[0234] Note that the above Figure 22 is for illustrative explanation of the embodiments of the present invention, but the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or several operations can be increased or decreased. Those skilled in the art can appropriately modify based on the above content without being limited to the description of Figure 22 above.

[0235] The above embodiments are for illustrative explanation of the embodiments of the present invention, but the present invention is not limited thereto, and furthermore, appropriate modifications can also be made based on the above embodiments. For example, each of the above embodiments can be used alone, or a plurality of the above embodiments can be combined and used.

[0236] As can be seen from the above embodiments, since the terminal device transmits uplink data only within the first action time and does not transmit uplink data within the second action time, relevant parameters associated with the uplink data within the first action time can be determined. Thereby, the ambiguity in the use of relevant parameters for uplink data transmission can be avoided, so that the uplink data transmission failure due to this ambiguity can be avoided.

[0237] <Embodiment of the seventh aspect> In an embodiment of the present invention, an uplink data transmission device is provided. The device may be, for example, a terminal device, or one or more components or assemblies arranged in the terminal device. Two SRS resource sets are set in the terminal device, and here, the description of the same content as in the embodiment of the first aspect is omitted.

[0238] Figure 23 is a diagram showing an uplink data transmission device in an embodiment of the present invention. As shown in Figure 23, the uplink data transmission device 2300 includes the following, that is, The first receiving unit 2301: receives the third downlink control information for scheduling uplink data within the first action time, wherein at least a part of the uplink data is within the second action time; and First transmission unit 2302: Based on the parameters indicated by the third downlink control information and / or at least one uplink transmission setting indication state (UL TCI state) corresponding to the second operation time, perform uplink data transmission based on a single transmission and reception point (sTRP) for the uplink data within the second operation time, or determine to perform uplink data transmission based on a multiple transmission and reception point (mTRP).

[0239] In some embodiments, the uplink data includes at least one of the following uplink data types, namely, Uplink repetition (PUSCH repetition) type A; Uplink repetition (PUSCH repetition) type B; or PUSCH for multi-panel simultaneous transmission.

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

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

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

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

[0244] In some embodiments, at least a part or all of the uplink transmission configuration indication states (UL TCI states) corresponding to the second operation time or corresponding to the first operation time are used to transmit uplink data within the second operation time.

[0245] In some embodiments, when the parameter indicated by the third downlink control information includes one SRS resource set (SRS resource set), uplink data transmission based on a single transmission and reception point (sTRP) is performed for the uplink data within the second operation time, and when the parameter includes a plurality of SRS resource sets (SRS resource set), uplink data transmission based on a multiple transmission and reception point (mTRP) is performed for the uplink data within the second operation time.

[0246] In some embodiments, uplink data transmission based on a multiple transmission and reception point (mTRP) is performed for the uplink data within the second operation time, and when 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 one uplink transmission configuration indication state (UL TCI state) is associated with a plurality of SRS resource sets.

[0247] In some embodiments, among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time or corresponding to the first operation time, the uplink transmission configuration indication state (UL TCI state) associated with the parameter is used, or among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time, a pre-defined uplink transmission configuration indication state (UL TCI state) is used to transmit uplink data within the second operation time.

[0248] In some embodiments, the pre-defined 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 embodiments, at least one of the following information among the parameters (i.e., SRS resource set, SRS resource, or transmit precoding matrix indicator (TPMI)) is used to transmit uplink data within the second operation time.

[0250] In some embodiments, when 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), uplink data transmission based on a single transmission and reception point (sTRP) is performed on the uplink data within the second operation time. When the uplink transmission configuration indication state corresponding to the second operation time includes multiple uplink transmission configuration indication states (UL TCI state), uplink data transmission based on multiple transmission and reception points (mTRP) is performed on the uplink data within the second operation time.

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

[0252] In some embodiments, at least one of the following information included in and / or predefined by the parameter (i.e., SRS resource set, SRS resource, or transmit precoding matrix indicator (TPMI)) is used to transmit uplink data within the second operation time.

[0253] In some embodiments, at least one of the following predefined information, i.e., at least one of SRS resource set, SRS resource, or TPMI, is determined based on one of the following, i.e., Two configured SRS resource sets; One SRS resource set at a specific position among the two configured SRS resource sets; One SRS resource at a specific position 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 minimum number of SRS ports; and One TPMI at a specific position among at least one available TPMI of one SRS resource.

[0254] In some embodiments, 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 state) (i.e., SRS resource set; SRS resource; or, TPMI) is used to transmit uplink data within the second operation time.

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

[0256] In some embodiments, from the first uplink repetition (PUSCH repetition) after the start time of the second operation 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 repetitions (PUSCH repetition), wherein the start times of the K uplink repetitions (PUSCH repetition) are within the second operation time.

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

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

[0259] In some embodiments, when one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is used for transmitting 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 repetition).

[0260] In some embodiments, the K uplink repetitions (PUSCH repetition) use the mapping method of the SRS resource set and the uplink repetition (PUSCH repetition) determined based on the third downlink control information.

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

[0262] Each of the above embodiments is for illustrative purposes of the embodiments of the present invention, but the present invention is not limited thereto, and furthermore, appropriate modifications can be made based on each of the above embodiments. For example, each of the above embodiments can be used alone, or a plurality of the above embodiments can be used in combination.

[0263] It should be noted that only the components or modules according to the present invention have been described above, but the present invention is not limited thereto. The uplink data transmission device 2300 may further include other components or modules, and for the specific content of these components or modules, reference can be made to related technologies.

[0264] Also, for the sake of convenience, FIG. 23 only shows the connection relationship or signal direction between each component or module. However, as those skilled in the art can understand, various related technologies such as bus connection can be adopted. These components or modules may be implemented by hardware such as a processor, a memory, a transmitter, a receiver, etc., and the implementation of the present invention is not limited thereto.

[0265] As can be seen from the above embodiments, the terminal device determines related parameters for uplink data transmission within the second operation time based on at least one uplink transmission setting indication state (UL TCI state) corresponding to the parameter and / or the second operation time indicated by the third downlink control information. 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.

[0266] <Embodiment of the Eighth Aspect> In an embodiment of the present invention, an uplink data transmission device is provided. The device may be, for example, a terminal device, or one or more components or assemblies arranged in the terminal device. Two SRS resource sets (SRS resource set) are set in the terminal device, and here, the description of the same content as in the embodiment of the second aspect is omitted.

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

[0268] As a result, the terminal device transmits uplink data only within the first operation time, and can determine at least one of the related parameters associated with the uplink data, such as an SRS resource set, an SRS resource, and a TPMI. 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.

[0269] Each of the above embodiments is for illustratively explaining the embodiments of the present invention, but the present invention is not limited thereto, and further, appropriate modifications can be made based on each of the above embodiments. For example, each of the above embodiments may be used alone, or a plurality of the above embodiments may be used in combination.

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

[0271] Also, for the sake of convenience, FIG. 24 only shows the connection relationship or signal direction between each component or module, but as those skilled in the art can understand, various related technologies such as bus connection may be adopted. These components or modules may be realized by hardware such as a processor, a memory, a transmitter, a receiver, etc., and the implementation of the present invention is not limited thereto.

[0272] As can be seen from the above embodiments, the terminal device transmits uplink data only within the first operation time, and can determine at least one of the related parameters associated with the uplink data, such as an SRS resource set, an SRS resource, and a TPMI. 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.

[0273] <Example of the Ninth Side> In an embodiment of the present invention, an uplink data transmission device is provided. The device may be, for example, a terminal device, or one or more components or assemblies arranged in the terminal device. Two SRS resource sets are set in the terminal device. Here, the description of the same content as in the embodiment of the third aspect is omitted.

[0274] FIG. 25 is a diagram showing an uplink data transmission device in an embodiment of the present invention. As shown in FIG. 25, the uplink data transmission device 2500 includes the following, that is, The third receiving unit 2501: receives third downlink control information for scheduling uplink data within a first operation time, wherein at least a part of the uplink data is within a second operation time; and The third transmitting unit 2502: does not transmit the uplink data within the second operation time.

[0275] Thereby, the terminal device transmits uplink data only within the first operation time and does not transmit uplink data within the second operation time, so that relevant parameters associated with the uplink data within the first operation time can be determined. Thereby, the ambiguity in the use of relevant parameters for uplink data transmission can be avoided, and thus the uplink data transmission failure due to this ambiguity can be avoided.

[0276] The above embodiments are for illustrative purposes to explain the embodiments of the present invention, but the present invention is not limited thereto, and further, appropriate modifications can be made based on the above embodiments. For example, each of the above embodiments may be used alone, or a plurality of the above embodiments may be combined and used.

[0277] Note that only the components or modules according to the present invention have been described above, but the present invention is not limited thereto. The uplink data transmission device 2500 may further include other components or modules, and for the specific content of these components or modules, reference may be made to related technologies.

[0278] Also, for the sake of convenience, FIG. 25 only shows the connection relationship or signal direction between each component or module. However, as can be understood by those skilled in the art, various related technologies such as bus connection may be adopted. These components or modules may be realized by hardware such as a processor, a memory, a transmitter, a receiver, etc., and the implementation of the present invention is not limited thereto.

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

[0280] <Embodiment of the Tenth Aspect> In an embodiment of the present invention, an uplink data receiving device is provided. The device may be, for example, a network device, or one or more components or assemblies arranged in a network device. Here, the description of the same content as in the embodiment of the first aspect is omitted.

[0281] FIG. 26 is a diagram showing an uplink data receiving device in an embodiment of the present invention. As shown in FIG. 26, the uplink data receiving device 2600 includes the following, that is, First transmission unit 2601: Transmits third downlink control information for scheduling uplink data to the terminal device within a first operation time, wherein at least a part of the uplink data is within a second operation time, and two SRS resource sets are configured for the terminal device; and First reception unit 2602: Receives uplink data within the second operation time, wherein the terminal device performs uplink data transmission based on a single transmission and reception point (sTRP) or multiple transmission and reception point (mTRP) for the uplink data 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.

[0282] The above embodiments are for illustrative purposes to explain the embodiments of the present invention, but the present invention is not limited thereto, and appropriate modifications can also be made based on the above embodiments. For example, each of the above embodiments can be used alone, or a plurality of the above embodiments can be combined and used.

[0283] Note that only the components or modules according to the present invention are described above, but the present invention is not limited thereto. The uplink data receiving device 2600 may further include other components or modules, and specific details of these components or modules can refer to related technologies.

[0284] Also, for convenience, FIG. 26 only shows the connection relationship or signal direction between each component or module, but as those skilled in the art can understand, various related technologies such as bus connection can be adopted. These components or modules may be realized by hardware such as a processor, a memory, a transmitter, a receiver, etc., and the implementation of the present invention is not limited thereto.

[0285] As can be seen from the above embodiments, the terminal device determines relevant parameters for uplink data transmission within the second action time 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 time. Thereby, ambiguity in the use of relevant parameters for uplink data transmission can be avoided, and thus uplink data transmission failure due to this ambiguity can be avoided.

[0286] <Embodiment of the eleventh aspect> In an embodiment of the present invention, an uplink data receiving device is provided. The device may be, for example, a network device, or one or more components or assemblies arranged in the network device. Here, the description of the same content as in the embodiment of the second aspect is omitted.

[0287] FIG. 27 is a diagram showing another uplink data receiving device in an embodiment of the present invention. As shown in FIG. 27, the uplink data receiving device 2700 includes the following, that is, A second transmission unit 2701: Transmits third downlink control information for scheduling uplink data to the terminal device within the first action time, among which, two SRS resource sets (SRS resource set) are set for the terminal device; and Second receiving unit 2702: Receives the uplink data within the first operation time. Among them, the terminal device performs uplink data transmission based on a single transmission and reception point (sTRP) or multiple transmission and reception points (mTRP) for the uplink data based on at least one of the SRS resource set, SRS resource, or TPMI indicated by the third downlink control information.

[0288] The above embodiments are for illustrative purposes to explain the embodiments of the present invention. However, the present invention is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, each of the above embodiments can be used alone, or a combination of multiple of the above embodiments can be used.

[0289] Note that only the components or modules according to the present invention have been described above, but the present invention is not limited thereto. The uplink data receiving device 2700 may further include other components or modules. For specific details of these components or modules, related technologies can be referred to.

[0290] Also, for convenience, FIG. 27 only shows the connection relationship or signal direction between components or modules. As those skilled in the art can understand, various related technologies such as bus connection can be adopted. These components or modules may be realized by hardware such as a processor, a memory, a transmitter, a receiver, etc., and the implementation of the present invention is not limited thereto.

[0291] As can be seen from the above embodiments, the terminal device transmits uplink data only within the first action time, and can determine at least one of the related parameters associated with the uplink data, for example, SRS resource set, SRS resource, and TPMI. Thereby, the ambiguity in the use of the related parameters for uplink data transmission can be avoided, so that the uplink data transmission failure due to this ambiguity can be avoided.

[0292] <Embodiment of the Twelfth Aspect> In an embodiment of the present invention, an uplink data receiving device is provided. The device may be, for example, a network device, or one or more components or assemblies arranged in the network device. Here, the description of the same content as in the embodiment of the third aspect is omitted.

[0293] FIG. 28 is a diagram showing another uplink data receiving device in an embodiment of the present invention. As shown in FIG. 28, the uplink data receiving device 2800 includes the following, that is, The third receiving unit 2801: Transmits third downlink control information for scheduling uplink data to the terminal device within the first action time, wherein at least a part of the uplink data is within the second action time, and two SRS resource sets (SRS resource set) are set for the terminal device; and The third transmitting unit 2802: Does not receive the uplink data within the second action time within the second action time, wherein the terminal device does not transmit the uplink data within the second action time.

[0294] The above embodiments are for illustrative purposes to explain the embodiments of the present invention, but the present invention is not limited thereto, and further, appropriate modifications can be made based on the above embodiments. For example, each of the above embodiments may be used alone, or a plurality of the above embodiments may be used in combination.

[0295] Note that only the components or modules according to the present invention have been described above, but the present invention is not limited thereto. The uplink data receiving device 2800 may further include other components or modules, and specific details of these components or modules can be referred to related technologies.

[0296] Also, for the sake of convenience, FIG. 28 only shows the connection relationship or signal direction between components or modules. As can be understood by those skilled in the art, various related technologies such as bus connection may be adopted. These components or modules may be implemented by hardware such as a processor, a memory, a transmitter, a receiver, etc., and the implementation of the present invention is not limited thereto.

[0297] As can be seen from the above embodiments, the terminal device transmits uplink data only within the first operation time and does not transmit uplink data within the second operation time. Therefore, related parameters associated with the uplink data within the first operation time can be determined. Thereby, ambiguity in the use of related parameters for uplink data transmission can be avoided, and uplink data transmission failure due to this ambiguity can be avoided.

[0298] <Embodiment of the Thirteenth Aspect> In an embodiment of the present invention, a communication system is further provided. Referring to FIG. 1, the description of the same content as the embodiments of the first aspect to the twelfth aspect is omitted here.

[0299] Based on some embodiments, the communication system 100 includes at least the following, namely, Network device: Transmits third downlink control information for scheduling uplink data to the terminal device within the first operation time, wherein at least a part of the uplink data is within the second operation time; and The terminal device: Two SRS resource sets are configured, and the terminal device performs uplink data transmission based on a single transmission and reception point (sTRP) or multiple transmission and reception points (mTRP) for the uplink data within the second operation time based on at least one of 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 operation time, and the network device receives the uplink data within the second operation time.

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

[0301] Based on some embodiments, communication system 100 further includes at least the following, namely, Network device: Transmit third downlink control information for scheduling uplink data to the terminal device within a first operation time, where at least a part of the uplink data is within a second operation time; and The terminal device: Two SRS resource sets are configured, the terminal device does not transmit uplink data within the second operation time, and the network device does not receive uplink data within the second operation time within the second operation time.

[0302] In an 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 it may also be other network devices.

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

[0304] Also, as shown in FIG. 29, the network device 2900 may further include a transceiver 2940, an antenna 2950, etc. Since the functions of these components are similar to those of the prior art, the detailed description thereof is omitted here. Note that the network device 2900 does not necessarily include all the components described in FIG. 29. Also, the network device 2900 may further include components not shown in FIG. 29, and reference may be made to the prior art for this.

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

[0306] FIG. 30 is a configuration 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. The memory 3020 stores data and programs and is connected to the processor 3010. Note that this figure is merely an example, and other types of configurations may be used to supplement or replace this configuration to implement a telecommunication function or other functions.

[0307] For example, the processor 3010 may be configured to execute a program to implement the uplink data transmission method described in the embodiment of the first aspect. For example, the processor 3010 may be configured to perform the following control, that is, two SRS resource sets are set, and third downlink control information for scheduling uplink data within a first operation time is received, wherein at least a part of the uplink data is within a second operation time; and 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 operation time, determine to perform uplink data transmission based on a single transmission and reception point (sTRP) or perform uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data within the second operation 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 in the prior art, so the detailed description thereof is omitted here. Note that the terminal device 3000 does not necessarily include all the components described in FIG. 30. In addition, the terminal device 3000 may further include components not shown in FIG. 30, and for this, reference may be made to the prior art.

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

[0310] In an embodiment of the present invention, a storage medium storing a computer program is further provided. The computer program causes a terminal device to execute the uplink data transmission method described in the embodiments of the first to third aspects.

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

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

[0313] In addition, the above-described apparatus and method may be implemented by software or hardware, or may be implemented by a combination of hardware and software. The present invention further relates to a computer-readable program as follows, that is, when the program is executed by a logic component, the logic component realizes the above-described apparatus or component, or the logic component realizes each of the above-described methods or steps. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, a processor used in a computer, or the like. The present invention further relates to a storage medium storing the above-described program, such as a hard disk, a magnetic disk, an optical hard disk, a DVD, a flash memory, or the like.

[0314] Furthermore, one or more combinations of the functional blocks described in the drawings 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, discrete gate or transistor logic component, discrete hardware assembly or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks described in the drawings and / or one or more combinations of the functional blocks may further be configured as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors connected communicatively to a DSP or any other combination of configurations.

[0315] As described above, the preferred embodiments of the present invention have been described. However, the present invention is not limited to such embodiments, and any changes to the present invention belong to the technical scope of the present invention as long as the gist of the present invention is not departed from.

[0316] Also, with regard to the above-described embodiments and the like, the following additional remarks are disclosed.

[0317] (Additional Remark 1) An uplink data transmission method applied to a terminal device, wherein two SRS resource sets are set in the terminal device, and the method includes: The terminal device receives third downlink control information for scheduling uplink data within a first operation time, wherein at least a part of the uplink data is within a second operation time; and Based on the parameters indicated by the third downlink control information of the terminal device and / or at least one uplink transmission setting indication state (UL TCI state) corresponding to the second active time, uplink data within the second active time is transmitted based on a single transmission and reception point (sTRP), or it is determined to perform uplink data transmission based on a multiple transmission and reception point (mTRP).

[0318] (Appendix 2) The method according to Appendix 1, wherein the uplink data includes at least one of the following uplink data types, namely, PUSCH repetition type A; PUSCH repetition type B; or PUSCH for multi-panel simultaneous transmission.

[0319] (Appendix 3) The method according to Appendix 1, wherein the terminal device receives first downlink control information corresponding to the first active time; and receives second downlink control information corresponding to the second active time within the first active time.

[0320] (Appendix 4) The method according to Appendix 1, wherein the parameter includes at least one of an SRS resource set, an SRS resource, and a TPMI.

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

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

[0323] (Appendix 7) The method according to Appendix 1, wherein, for the uplink data within the second operation time, some or all of the uplink transmission configuration indication states (UL TCI states) corresponding to the second operation time or corresponding to the first operation time are used to transmit the uplink data.

[0324] (Appendix 8) The method according to Appendix 7, when the parameter includes one SRS resource set, uplink data transmission based on a single transmission and reception point (sTRP) is performed for the uplink data within the second operation time, when the parameter includes a plurality of SRS resource sets, uplink data transmission based on a multiple transmission and reception point (mTRP) is performed for the uplink data within the second operation time.

[0325] (Appendix 9) The method according to Appendix 8, For the uplink data within the second operation time, perform uplink data transmission based on a multiple transmission and reception point (mTRP), and when 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 one uplink transmission configuration indication state (UL TCI state) is associated with the plurality of SRS resource sets.

[0326] (Appendix 10) The method according to Appendix 8, Among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time or corresponding to the first operation time, use the uplink transmission configuration indication state (UL TCI state) associated with the parameter, or among at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time, use a pre-defined uplink transmission configuration indication state (UL TCI state) to transmit the uplink data within the second operation time.

[0327] (Appendix 11) The method according to Appendix 10, The pre-defined 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.

[0328] (Appendix 12) The method according to Appendix 8, Use at least one of the following information in the parameter, that is, at least one of SRS resource set; SRS resource; or TPMI to transmit the uplink data within the second operation time.

[0329] (Appendix 13) The method described in Appendix 7, wherein when 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), uplink data within the second operation time is transmitted based on a single transmission and reception point (sTRP); when the uplink transmission configuration indication state corresponding to the second operation time includes a plurality of uplink transmission configuration indication states (UL TCI state), uplink data within the second operation time is transmitted based on a multiple transmission and reception point (mTRP).

[0330] (Appendix 14) The method described in Appendix 13, wherein at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time is used to transmit uplink data within the second operation time.

[0331] (Appendix 15) The method described in Appendix 13, wherein at least one of the following information included in and / or predefined by the parameter, namely, at least one of SRS resource set; SRS resource; or TPMI, is used to transmit uplink data within the second operation time.

[0332] (Appendix 16) The method described in Appendix 15, wherein at least one of the following predefined information, namely, at least one of SRS resource set; SRS resource; or TPMI, is determined based on one of the following, namely Two configured SRS resource sets; One SRS resource set at a specific position out of the two configured SRS resource sets; One SRS resource at a specific position out of at least one SRS resource within one SRS resource set; The first SRS resource with the minimum number of SRS ports out of at least one SRS resource within one SRS resource set; and One TPMI at a specific position out of at least one available TPMI of one SRS resource.

[0333] (Appendix 17) The method described in Appendix 13, 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), namely, at least one of SRS resource set; SRS resource; or TPMI, to transmit uplink data within the second operation time.

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

[0335] (Appendix 19) The method described in Appendix 18, From the first uplink repetition (PUSCH repetition) after the 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 repetitions (PUSCH repetition), wherein the start times of the K uplink repetitions (PUSCH repetition) are within the second action time.

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

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

[0338] (Appendix 22) The method according to Appendix 19, When one uplink transmission configuration indication state (UL TCI state) and / or SRS resource set is used 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 repetition).

[0339] (Appendix 23) The method according to Appendix 19, wherein the K uplink repetitions (PUSCH repetition) use the mapping method of the SRS resource set and the uplink repetition (PUSCH repetition) determined based on the third downlink control information.

[0340] (Appendix 24) The method according to any one of Appendices 18 - 23, wherein the uplink repetition (PUSCH repetition) includes at least one of nominal repetition, actual repetition, symbol, and slot.

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

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

[0343] (Appendix 27) An uplink data reception method applied to a network device, where two SRS resource sets are configured for the 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 operation time, where at least a part of the uplink data is within a second operation time; and The network device receives uplink data within the second operation time, and among them, based on the parameters indicated by the terminal device according to the third downlink control information and / or at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time, for the uplink data within the second operation time, determining to perform uplink data transmission based on a single transmission and reception point (sTRP) or to perform uplink data transmission based on a multiple transmission and reception point (mTRP).

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

[0345] (Appendix 29) An uplink data reception method, which is applied to a network device, and among them, two SRS resource sets are set for the 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 operation time, wherein at least a part of the uplink data is within a second operation time; and the network device does not receive uplink data within the second operation time within the second operation time, including that the terminal device does not transmit uplink data within the second operation time.

[0346] (Appendix 30) A terminal device, including a memory and a processor, 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 Appendices 1 to 26.

[0347] (Appendix 31) A network device, including a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to implement the uplink data reception method according to any one of Appendices 27 to 29.

[0348] (Appendix 32) A communication system, including a network device that transmits third downlink control information for scheduling uplink data to a terminal device within a first operation time, wherein at least a part of the uplink data is within a second operation time, Further including the terminal device, in which two SRS resource sets are configured, and the terminal device is based on the 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, for the uplink data within the second operation time, determine to perform uplink data transmission based on a single transmission and reception point (sTRP), or perform uplink data transmission based on a multiple transmission and reception point (mTRP), The network device receives uplink data within the second operation time.

[0349] (Appendix 33) A communication system, Including a network device, which transmits third downlink control information for scheduling uplink data to a terminal device within a first operation time, Further including the terminal device, in which two SRS resource sets are configured, and the terminal device is based on at least one of the SRS resource set, SRS resource, and TPMI indicated by the third downlink control information, for the uplink data, determine to perform uplink data transmission based on a single transmission and reception point (sTRP), or perform uplink data transmission based on a multiple transmission and reception point (mTRP), The network device receives the uplink data within the first operation time.

[0350] (Appendix 34) A communication system, Including a network device, which transmits third downlink control information for scheduling uplink data to a terminal device within a first operation time, wherein at least a part of the uplink data is within a second operation time, Further including the terminal device, in which two SRS resource sets are configured, and the terminal device does not transmit uplink data within the second operation time, The network device does not receive uplink data within the second operation time within the second operation time.

Claims

1. An uplink data transmission device, which is arranged in a terminal device, and among them, two SRS resource sets (SRS resource set) are set in the terminal device, and the uplink data transmission device includes: A first receiving unit that receives third downlink control information for scheduling uplink data within a first operation time, and at least a part of the uplink data is within a second operation time; and Based on the parameter indicated by the third downlink control information and / or at least one uplink transmission setting indication state (UL TCI state) corresponding to the second operation time, for the uplink data within the second operation time, perform uplink data transmission based on a single transmission and reception point (single transmission and reception point, sTRP), or determine to perform uplink data transmission based on a multiple transmission and reception point (multiple transmission and reception point, mTRP). The device includes a first transmission unit.

2. The device according to claim 1, wherein The uplink data includes at least one of the following uplink data types, that is, Uplink repetition (PUSCH repetition) type A (Type A); Uplink repetition (PUSCH repetition) type B (Type B); or The device is a PUSCH for simultaneous transmission of multiple panels.

3. The device according to claim 1, wherein The first receiving unit receives first downlink control information corresponding to the first operation time; and Receive second downlink control information corresponding to the second operation time within the first operation time. The device.

4. The device according to claim 1, wherein The parameter includes at least one of an SRS resource set (SRS resource set), an SRS resource (SRS resource), or an uplink precoding index (transmit precoding matrix indicator, TPMI). The device.

5. The device according to claim 4, wherein The apparatus, wherein the parameter is indicated by a sounding reference signal (SRS) resource set indicator field in the third downlink control information. **Claim 6** The apparatus according to claim 3, wherein the second downlink control information indicates the at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second active time. **Claim 7** The apparatus according to claim 1, wherein, for at least a part or all of the uplink transmission configuration indication states (UL TCI states) corresponding to the second active time or the first active time, uplink data within the second active time is transmitted. **Claim 8** The apparatus according to claim 7, wherein, when the parameter includes one SRS resource set, uplink data transmission based on a single transmission and reception point (sTRP) is performed for the uplink data within the second active time; and when the parameter includes a plurality of SRS resource sets, uplink data transmission based on a multiple transmission and reception point (mTRP) is performed for the uplink data within the second active time. **Claim 9** The apparatus according to claim 8, wherein uplink data transmission based on a multiple transmission and reception point (mTRP) is performed for the uplink data within the second active time, and when the uplink transmission configuration indication state (UL TCI state) corresponding to the second active 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 plurality of SRS resource sets. **Claim 10** The apparatus according to claim 8, An apparatus for transmitting uplink data within the second operation time, using the uplink transmission configuration indication state (UL TCIs) associated with the parameter among at least one uplink transmission configuration indication state (UL TCIs) corresponding to the second operation time or corresponding to the first operation time, or using a predefined uplink transmission configuration indication state (UL TCIs) among at least one uplink transmission configuration indication state (UL TCIs) corresponding to the second operation time. **Claim 11** The apparatus according to claim 10, wherein the predefined uplink transmission configuration indication state (UL TCIs) is one uplink transmission configuration indication state (UL TCIs) at a specific position among at least one uplink transmission configuration indication state (UL TCIs) corresponding to the second operation time. **Claim 12** The apparatus according to claim 8, wherein at least one of the following information in the parameter, namely, at least one of an SRS resource set (SRS resource set), an SRS resource (SRS resource), or a transmit precoding matrix indicator (TPMI), is used to transmit uplink data within the second operation time. **Claim 13** The apparatus according to claim 7, when the uplink transmission configuration indication state (UL TCIs) corresponding to the second operation time includes one uplink transmission configuration indication state (UL TCIs), performing uplink data transmission based on a single transmission and reception point (sTRP) for the uplink data within the second operation time, when the uplink transmission configuration indication state corresponding to the second operation time includes a plurality of uplink transmission configuration indication states (UL TCIs), performing uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data within the second operation time. **Claim 14** The apparatus according to claim 13, An apparatus for transmitting uplink data within the second operation time by using at least one uplink transmission configuration indication state (UL TCI state) corresponding to the second operation time.

15. The apparatus according to claim 13, wherein the apparatus transmits uplink data within the second operation time by using at least one of the following information included in and / or predefined by the parameter, namely, at least one of an SRS resource set, an SRS resource, or a transmit precoding matrix indicator (TPMI).

16. The apparatus according to claim 15, wherein at least one of the following predefined information, namely, at least one of an SRS resource set, an SRS resource, or a transmit precoding matrix indicator (TPMI) is determined based on one of the following, namely, two configured SRS resource sets; one SRS resource set at a specific position among two configured SRS resource sets; one SRS resource at a specific position among at least one SRS resource in one SRS resource set; the first SRS resource with the smallest number of SRS ports among at least one SRS resource in one SRS resource set; and one transmit precoding matrix indicator (TPMI) at a specific position among at least one available transmit precoding matrix indicator (TPMI) of one SRS resource.

17. The apparatus according to claim 13, wherein at least one of the following information associated with the uplink transmission configuration indication state (UL TCI state) within the second operation time, namely, at least one of an SRS resource set (SRS resource set), an SRS resource (SRS resource), or a transmit precoding matrix indicator (TPMI), is used to transmit uplink data within the second operation time.

18. The apparatus according to claim 3, for at least one uplink repetition (PUSCH repetition) spanning the first operation time and the second operation time, the uplink data within the second operation time starts from the first uplink repetition (PUSCH repetition) after the start time of the second operation time.

19. An uplink data transmission apparatus, disposed in a terminal device, wherein two SRS resource sets (SRS resource set) are set in the terminal device, and the uplink data transmission apparatus includes: a second receiving unit that receives third downlink control information for scheduling uplink data within the first operation time, and the terminal device transmits the uplink data within the first operation time; and a second transmitting unit that determines to perform uplink data transmission based on a single transmission and reception point (sTRP) or perform uplink data transmission based on a multiple transmission and reception point (mTRP) for the uplink data based on at least one of the SRS resource set (SRS resource set), the SRS resource (SRS resource), and the transmit precoding matrix indicator (TPMI) indicated by the third downlink control information.

20. An uplink data transmission device, which is disposed in a terminal device, wherein two SRS resource sets (SRS resource set) are set in the terminal device, and the uplink data transmission device includes: A third receiving unit that receives third downlink control information for scheduling uplink data within a first operation time, wherein at least a part of the uplink data is within a second operation time; and An apparatus including a third transmitting unit that does not transmit uplink data within the second operation time.

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