Wireless communication method, device and system

Abstract

To provide a radio communication method, device, and system.SOLUTION: A radio communication device includes a receiver and a processor. The receiver receives downlink control information. The downlink control information is used for triggering PUCCH transmission. The downlink control information includes a first TPC instruction and a second TPC instruction. On the basis of the number of closed loop power control parameter indexes corresponding to the PUCCH transmission, the processor determines whether a closed loop power control parameter of the PUCCH transmission is determined on the basis of one of the first TPC instruction and the second TPC instruction or is determined on the basis of the first TPC instruction and the second TPC instruction.SELECTED DRAWING: Figure 26

Description

[Technical Field]

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

[0002] To meet the high reliability and low latency needs of Ultra-Reliable and Low Latency Communication (URLLC) services, NR Rel-16 (New Radio Release 16) introduces a corresponding uplink data transmission mechanism, which can support more flexible uplink data transmission and thus reduce the latency of uplink data transmission.

[0003] It should be noted that the introduction of the above background art is intended to clearly and completely explain the technical solutions of the present invention and to facilitate understanding by those skilled in the art, and these technical solutions described in the background art of the present invention should not be construed as being known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors discovered that because NR (New Radio) can support a maximum center transmission frequency of 52.6 GHz, in high-frequency scenarios, high-frequency radio signals are susceptible to blockage due to their relatively low diffraction ability. Such degradation of channel quality due to blockage is highly detrimental to uplink transmission. The reason for this is that, while existing beam failure recovery mechanisms require at most tens of milliseconds to restore a communication link, the communication latency requirement of URLLC is generally much smaller than tens of milliseconds.

[0005] Therefore, high-frequency uplinks are susceptible to interference, and the channel can deteriorate rapidly. Existing recovery mechanisms require too long a time to meet the latency requirements of URLLC services. To reduce the impact of interference on uplink data transmission, one feasible approach is to transmit uplink data using spatial diversity. In other words, the same data from the terminal device can reach the network device via different airspace paths (i.e., different transmission and reception points (TRPs)) at different times. In this way, if one path is interfered with, the other paths can still continue to operate, ensuring low latency and high reliability of uplink data.

[0006] To support the above-mentioned multi-TRP (mTRP) uplink transmission, one method is to add additional fields to the corresponding scheduling downlink control information (DCI) to support the multi-TRP uplink transmission, and schedule the single-TRP (sTRP) uplink transmission using the DCI without the additional field addition. However, when adopting such a method, for a terminal device that can support both the multi-TRP uplink transmission and the single-TRP uplink transmission in the same bandwidth part (BWP), it is necessary to blindly detect two different sizes of DCI, especially when the terminal device needs to dynamically switch between the single-TRP uplink transmission and the multi-TRP uplink transmission, which may significantly consume the terminal device's blind detection capability for the control channel.

[0007] To solve the above problem, one possible scheme is for a network device to semi-statically configure one DCI format, which corresponds to one size and can support both single-TRP uplink transmission scheduling and multi-TRP uplink transmission scheduling. In other words, this DCI format can support single-TRP uplink scheduling even when the above additional area is increased.

[0008] However, at present, there is no feasible method to support scheduling single-TRP uplink transmissions using the DCI format with the above-mentioned additional increased range, or it may be said that at present, there is no way to accurately determine whether a corresponding uplink signal corresponds to a single-TRP transmission or a multi-TRP transmission based on a DCI indication.

[0009] In the above case, how to transmit the corresponding uplink signal when the DCI includes two closed-loop power control instructions is also a problem to be solved.

[0010] Furthermore, for a terminal device that can support both multi-TRP uplink transmission and single-TRP uplink transmission with different BWPs, when a BWP switch occurs, in other words, when the terminal device switches from a BWP that can only perform single-TRP uplink transmission to a BWP that can perform multi-TRP uplink transmission, the sizes of the DCI fields set for the two BWPs are different, so it is also a problem that needs to be solved how to decode the corresponding DCI fields.

[0011] To solve at least one of the problems set forth above or other similar problems, embodiments of the present invention provide wireless communication methods, apparatuses and systems. [Means for solving the problem]

[0012] According to one aspect of an embodiment of the present invention, there is provided a wireless communication device, the device comprising: a receiving unit for receiving downlink control information, the downlink control information being used to trigger a PUSCH transmission, and the downlink control information including a first SRS resource indication and a second SRS resource indication; and a determining unit configured to determine, based on at least one of a plurality of indications, whether the PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication, or based on the first SRS resource indication and the second SRS resource indication; The instructions include: the number of repetitions of the PUSCH transmission; a duplication scheme corresponding to the PUSCH transmission; and an indication of a dynamic switching region in the downlink control information, the dynamic switching region being used to indicate whether the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, or based on one of the first SRS resource indication and the second SRS resource indication.

[0013] According to another aspect of an embodiment of the present invention, there is provided a wireless communication device, the device comprising: a receiving unit for receiving downlink control information, the downlink control information being used to trigger a PUSCH or PUCCH transmission, and the downlink control information including a first TPC indication and a second TPC indication; and a determining unit configured to determine, based on the number of closed-loop power control parameter indexes corresponding to the PUSCH or PUCCH transmission, whether the closed-loop power control parameters of the PUSCH or PUCCH transmission are determined based on one of the first TPC instruction and the second TPC instruction, or based on the first TPC instruction and the second TPC instruction.

[0014] According to another aspect of an embodiment of the present invention, there is provided a wireless communication device, the device comprising: a receiving unit for receiving downlink control information, the downlink control information scheduling a PUSCH, the downlink control information associated with a second DCI region, the second DCI region referring to at least one of an SRS resource indicator region and a Precoding information and number of layers region, a BWP region of the downlink control information indicating a first BWP, the first BWP being not an active BWP, one SRS resource set for codebook-based or non-codebook-based PUSCH transmission is configured for the active BWP, and two SRS resource sets for codebook-based or non-codebook-based PUSCH transmission are configured for the first BWP; and a processing unit, For decoding the second DCI field, the processing unit considers one SRS resource set for codebook-based or non-codebook-based PUSCH transmission to be configured for the first BWP. [Effects of the Invention]

[0015] One of the advantageous effects of the embodiments of the present invention is that, according to the embodiments of the present invention, when a terminal device can transmit both single-TRP uplink transmission and multi-TRP uplink transmission, the terminal device can accurately obtain corresponding indications based on the received downlink control information, and the terminal device can further ignore some unused DCI areas based on the indications of the above-mentioned downlink control information.

[0016] The following description and reference to the drawings disclose in detail particular embodiments of the present invention, illustrating ways in which the principles of the present invention may be employed, but the scope of the present invention is not limited thereto, and various changes, modifications, and alternatives may be included within the scope of the appended claims.

[0017] Additionally, features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in the other embodiments, or may be substituted for features in the other embodiments.

[0018] It should be noted that when used in this specification, terms such as "comprise / have" refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief explanation of the drawings]

[0019] Elements and features described in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments, and in the drawings, like reference numerals are used to indicate corresponding parts in several drawings and to indicate corresponding parts used in several embodiments.

[0020] The included drawings are used to provide a further understanding of the embodiments of the present invention, and these drawings constitute a part of this specification, illustrate embodiments of the present invention, and together with the written description, serve to explain the principles of the present invention. Also, it is apparent that the drawings described below are only for illustrating some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without any creative effort. [Figure 1] FIG. 1 illustrates a wireless communication method according to an embodiment of the present invention. [Figure 2] FIG. 1 illustrates a codebook-based PUSCH transmission scheduled by DCI (part 1). [Figure 3] FIG. 2 illustrates a codebook-based PUSCH transmission scheduled by DCI (part 2). [Figure 4] FIG. 3 is a diagram (part 3) illustrating codebook-based PUSCH transmission scheduled by DCI. [Figure 5]FIG. 4 is a diagram (part 4) illustrating codebook-based PUSCH transmission scheduled by DCI. [Figure 6] FIG. 5 illustrates codebook-based PUSCH transmission scheduled by DCI. [Figure 7] FIG. 6 is a diagram (part 6) showing codebook-based PUSCH transmission scheduled by DCI. [Figure 8] 1 is a diagram illustrating an example of a wireless communication method according to an embodiment of the present invention. [Figure 9] FIG. 10 is a diagram illustrating another example of a wireless communication method according to an embodiment of the present invention. [Figure 10] 1A and 1B are diagrams illustrating three examples (part 1) of PUSCH transmission scheduled by DCI. [Figure 11] FIG. 10 is a diagram showing three examples (part 2) of PUSCH transmission scheduled by DCI. [Figure 12] FIG. 10 is a diagram showing three examples (part 3) of PUSCH transmission scheduled by DCI. [Figure 13] FIG. 1 illustrates five examples (part 1) of PUCCH transmission scheduled by DCI. [Figure 14] FIG. 10 is a diagram showing five examples (part 2) of PUCCH transmission scheduled by DCI. [Figure 15] FIG. 10 is a diagram showing five examples (part 3) of PUCCH transmission scheduled by DCI. [Figure 16] FIG. 10 is a diagram showing five examples (part 4) of PUCCH transmission scheduled by DCI. [Figure 17] FIG. 10 is a diagram showing five examples (part 5) of PUCCH transmission scheduled by DCI. [Figure 18] 1 is a diagram illustrating an example of a wireless communication method according to an embodiment of the present invention. [Figure 19] FIG. 10 is a diagram illustrating another example of a wireless communication method according to an embodiment of the present invention. [Figure 20]10A to 10C are diagrams illustrating four examples (part 1) of a terminal device performing BWP switching. [Figure 21] FIG. 10 is a diagram showing four examples (part 2) of a terminal device performing BWP switching. [Figure 22] FIG. 10 is a diagram showing four examples (part 3) of a terminal device performing BWP switching. [Figure 23] FIG. 10 is a diagram showing four examples (part 4) of a terminal device performing BWP switching. [Figure 24] 1 is a diagram illustrating an example of a wireless communication device according to an embodiment of the present invention. [Figure 25] FIG. 10 is a diagram illustrating another example of a wireless communication device according to an embodiment of the present invention. [Figure 26] FIG. 10 is a diagram illustrating yet another example of a wireless communication device according to an embodiment of the present invention. [Figure 27] FIG. 10 is a diagram illustrating another example of a wireless communication device according to an embodiment of the present invention. [Figure 28] FIG. 10 is a diagram illustrating another example of a wireless communication device according to an embodiment of the present invention. [Figure 29] 1 is a diagram illustrating a communication system according to an embodiment of the present invention. [Figure 30] FIG. 2 is a diagram illustrating a terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] The foregoing and other features of the present invention will become more apparent from a consideration of the accompanying drawings and the following description. While the specification and drawings disclose particular embodiments of the present invention, they illustrate only some of the embodiments which may employ the principles of the present invention, and it is to be understood that the present invention is not limited to the described embodiments, but rather includes all modifications, variations, and alternatives which fall within the scope of the appended claims.

[0022] In embodiments of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (Wideband Code Division Multiple Access), HSPA (High-Speed ​​Packet Access), etc.

[0023] Additionally, communications between devices in a communications system may be performed according to any level of communications protocol, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communications protocols.

[0024] In the embodiments of the present invention, the term "network device" refers to a device that connects a terminal device to a communication network and provides services to the terminal device in a communication system, for example, a network device may include, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a network gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0025] The base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), etc., and may further include a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). The term "base station" may include some or all of the functions thereof, and each base station can provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and / or the area it covers, depending on the context of the term.

[0026] In embodiments of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network and receives services from the network, for example, via a network device. A User Equipment may be fixed or mobile, and may also be referred to as a Mobile Station (MS), a terminal, a Subscriber Station (SS), an Access Terminal (AT), a station, etc.

[0027] Among these, user devices may include, but are not limited to, cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smart watches, digital cameras, etc.

[0028] Furthermore, the term "network side" or "network device side" refers to the network side, or may be a base station or a core network device, and may include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, or may be a UE, and may include one or more terminal devices as described above.

[0029] Furthermore, for example, in a scenario such as the Internet of Things (IoT), the user equipment may also be a monitoring or measuring device or apparatus, including, but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0030] Various embodiments of the present invention will now be described with reference to the accompanying drawings, which are merely illustrative and not limiting of the present invention.

[0031] <Example of the first aspect> In an embodiment of the present invention, a wireless communication method is provided and explained from the terminal device side.

[0032] 1 is a diagram illustrating a wireless communication method according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:

[0033] 101: A terminal device receives downlink control information (DCI), the downlink control information is used to trigger PUSCH transmission, and the downlink control information includes a first SRS resource indication and a second SRS resource indication; and 102: The terminal device determines whether the PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication, or based on the first SRS resource indication and the second SRS resource indication, according to at least one of the following indications: the number of times the PUSCH transmission is repeated; a repetition scheme corresponding to the PUSCH transmission; and an indication of a dynamic switching region in the downlink control information, the dynamic switching region being used to indicate whether the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, or based on one of the first SRS resource indication and the second SRS resource indication.

[0034] Note that the above-mentioned FIG. 1 is used to exemplify an embodiment of the present invention, but the present invention is not limited thereto. For example, some operations (steps) may be added or removed. Those skilled in the art are not limited to the description of the above-mentioned FIG. 1, and may make appropriate modifications based on the above content.

[0035] According to the method of the embodiment of the present invention, after receiving a DCI triggering a PUSCH transmission, the terminal device determines which SRS resource indication(s) the PUSCH transmission is to be transmitted based on based on at least one of the following three factors: the number of times the PUSCH transmission is repeated, the corresponding duplication scheme for the PUSCH transmission, and the indication of a certain DCI region (called a dynamic switching region, but the present invention is not limited by this name) in the DCI, thereby accurately determining whether the corresponding uplink transmission corresponds to a single-TRP transmission or a multi-TRP transmission according to the DCI indication, and then transmitting the uplink transmission based on the corresponding DCI indication. In addition, the terminal device can further ignore some unused DCI regions according to the above-mentioned DCI indication.

[0036] In the embodiments of the present invention, the downlink control information is used to trigger PUSCH transmission, that is, the downlink control information is used to trigger the transmission of PUSCH transmission, or the downlink control information is used to schedule the transmission of PUSCH transmission, but the present invention is not limited to this expression.

[0037] In the above embodiment, the cyclic redundancy check (CRC) of the downlink control information may be scrambled by the C-RNTI or the CS-RNTI, but the present invention is not limited thereto. For specific scrambling methods, please refer to the related art, and detailed description thereof will be omitted here.

[0038] In the above-mentioned embodiment, the DCI format of the downlink control information (DCI format) may be DCI format 0_1 ​​or DCI format 0_2, that is, the downlink control information may correspond to DCI format 0_1 ​​or DCI format 0_2. For details regarding the DCI format, please refer to the related art, and detailed description thereof will be omitted here.

[0039] In the above-described embodiment, PUSCH transmission may correspond to PUSCH repetition Type A or PUSCH repetition Type B, but the present invention is not limited thereto. For definitions of PUSCH repetition Type A and PUSCH repetition Type B, please refer to the related art, and detailed description thereof will be omitted here.

[0040] In the above embodiment, the PUSCH transmission may be a non-codebook based PUSCH transmission, and information on a transmission precoder and a transmission rank of the PUSCH transmission may be determined based on the first SRS resource indication and / or the second SRS resource indication. That is, for a non-codebook based PUSCH transmission, the terminal device may determine a transmission precoder and a transmission rank used for transmitting the PUSCH transmission based on the first SRS resource indication and / or the second SRS resource indication. For details regarding the transmission precoder and the transmission rank, please refer to the related art, and detailed descriptions thereof will be omitted here.

[0041] In the above embodiment, the PUSCH transmission may be codebook-based PUSCH transmission, and the above downlink control information may further include a first PINL (Precoding information and number of layers) indication and / or a second PINL indication. The precoding information of the above PUSCH transmission may be determined based on a first SRS resource indication, a second SRS resource indication, the first PINL indication, and the second PINL indication, or may be determined based on the first SRS resource indication and the first PINL indication, or may be determined based on the second SRS resource indication and the second PINL indication. That is, for codebook-based PUSCH transmission, the terminal device can determine the precoding information and the number of layers used to send the PUSCH transmission based on one of the above three methods. For details related to the precoding information and the number of layers, please refer to the related art, and detailed descriptions thereof will be omitted here.

[0042] In an embodiment of the present invention, for codebook-based or non-codebook-based PUSCH transmission, the terminal device is configured with two SRS resource sets for codebook-based or non-codebook-based PUSCH transmission in the active BWP, which are SRS source set #1 and SRS source set #2, respectively.

[0043] The above-mentioned first SRS resource indication is used to indicate resources in SRS source set #1. For example, when SRS source set #1 includes two or more (>1) SRS resources, the DCI field (referred to as SRS resource indicator field #1 or SRI field #1) corresponding to the above-mentioned first SRS resource indication is used to select one SRS resource from SRS source set #1 for transmitting the corresponding PUSCH transmission. When SRS source set #1 includes only one SRS resource, the size of the DCI field corresponding to the above-mentioned first SRS resource indication is 0, and the above-mentioned first SRS resource indication indicates the SRS resource included in SRS source set #1.

[0044] The above-mentioned second SRS resource indication is used to indicate resources in SRS source set #2. For example, when SRS source set #2 includes two or more SRS resources, the DCI field (referred to as SRS resource indicator field #2 or SRI field #2) corresponding to the above-mentioned second SRS resource indication is used to select one SRS resource from SRS source set #2 for transmitting the corresponding PUSCH transmission. When SRS source set #2 includes only one SRS resource, the size of the DCI field corresponding to the above-mentioned second SRS resource indication is 0, and the above-mentioned second SRS resource indication indicates the SRS resource included in SRS source set #2.

[0045] In an embodiment of the present invention, for codebook-based PUSCH transmission, as mentioned above, the above-mentioned downlink control information further includes a first PINL indication and a second PINL indication.

[0046] The DCI field (Precoding information and number of layers #1) corresponding to the first PINL indication is used to indicate the number of layers corresponding to the SRS resource and the transmission precoder corresponding to the number of layers. The SRS resource is indicated by the first SRS resource indication, for example, indicated by the above-mentioned SRS resource indicator field #1. That is, the first SRS resource indication is used to indicate the SRS resource, and the first PINL indication is used to indicate the number of layers corresponding to the SRS resource indicated by the first SRS resource indication and the corresponding transmission precoder. The first PINL indication may also be referred to as a TPMI (Transmission precoding indicator) and an RI (Rank indicator). For details regarding TPMI and RI, please refer to the related art, and detailed descriptions thereof will be omitted here.

[0047] The DCI field (Precoding information and number of layers #2) corresponding to the second PINL indication is used to indicate the number of layers corresponding to the SRS resource and the transmission precoder corresponding to the number of layers. The SRS resource is indicated by the second SRS resource indication, for example, indicated by the above-mentioned SRS resource indicator field #2. That is, the second SRS resource indication is used to indicate the SRS resource, and the second PINL indication is used to indicate the number of layers corresponding to the SRS resource indicated by the second SRS resource indication and the corresponding transmission precoder. The second PINL indication may also be referred to as a TPMI (Transmission precoding indicator) and an RI (Rank indicator). For details regarding TPMI and RI, please refer to the related art, and detailed descriptions thereof will be omitted here.

[0048] In some embodiments, the number of repetitions of the PUSCH transmission is indicated by the downlink control information, for example, the number of repetitions of the PUSCH transmission is determined based on the number of repetitions indicated in a Time Domain Source Allocation (TDRA) indication of the downlink control information.

[0049] For example, when the number of repetitions is 1, PUSCH transmission of PUSCH repetition type A corresponds to one repetition, and PUSCH transmission of PUSCH repetition type B corresponds to one non-imal repetition.

[0050] Furthermore, for example, when the number of repetitions is 2, PUSCH transmission of PUSCH repetition type A corresponds to two repetitions, and PUSCH transmission of PUSCH repetition type B corresponds to two non-imal repetitions.

[0051] In some embodiments, the duplication scheme for PUSCH transmission is configured by radio resource control (RRC) signaling, and may be configured as sequential mapping or cyclic mapping.

[0052] When sequential mapping is configured, the first and second transmission opportunities corresponding to the PUSCH transmission correspond to one TRP, e.g., for codebook-based PUSCH transmission, they correspond to one set of SRI, TPMI, and RI instructions, and for non-codebook-based PUSCH transmission, they correspond to one SRI instruction; the third and fourth transmission opportunities corresponding to the PUSCH transmission correspond to another TRP, e.g., for codebook-based PUSCH transmission, they correspond to another set of SRI, TPMI, and RI instructions, and for non-codebook-based PUSCH transmission, they correspond to another SRI instruction, and the subsequent transmission opportunities are cycled based on this.

[0053] When cyclic mapping is configured, the first transmission opportunity corresponding to the PUSCH transmission corresponds to one TRP, e.g., for codebook-based PUSCH transmission, it corresponds to one set of SRI, TPMI, and RI instructions, and for non-codebook-based PUSCH transmission, it corresponds to one SRI instruction; the second transmission opportunity corresponding to the PUSCH transmission corresponds to another TRP, e.g., for codebook-based PUSCH transmission, it corresponds to another set of SRI, TPMI, and RI instructions, and for non-codebook-based PUSCH transmission, it corresponds to another SRI instruction, and subsequent transmission opportunities are cyclically based on this.

[0054] In some embodiments, the presence or absence of the dynamic switching region in the downlink control information is configured by RRC signaling.

[0055] In the above embodiment, the RRC signaling can be used to indicate whether the dynamic switching region exists in a certain (specific) DCI format. For example, the RRC signaling can be used to indicate whether the dynamic switching region exists in DCI format 0_1, or for example, the RRC signaling can be used to indicate whether the dynamic switching region exists in DCI format 0_2. If the DCI format corresponding to the downlink control information is DCI format 0_1 ​​and the terminal device receives RRC signaling indicating that the dynamic switching region exists in DCI format 0_1, the terminal device considers the downlink control information to include the dynamic switching region. Alternatively, it can be stated as follows: if the RRC signaling indicates that the dynamic switching region exists in DCI format 0_1 ​​and the format corresponding to the downlink control information is also DCI format 0_1, the terminal device considers the downlink control information to include the dynamic switching region.

[0056] In embodiments of the present invention, "determine whether PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication, or whether PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication" may be expressed as "determine an SRS resource indication associated with PUSCH transmission". In the following description, the above two description methods are interchangeable, and redundant description will be omitted.

[0057] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on an overlapping number of PUSCH transmissions includes: determining that the PUSCH transmission is transmitted based on a first SRS resource indication when the overlapping number of PUSCH transmissions is 1, so that the terminal device can transmit the PUSCH transmission based on the first SRS resource indication when the overlapping number of PUSCH transmissions is 1.

[0058] 2 is a diagram illustrating an example of codebook-based PUSCH transmission scheduled by DCI. In the example of FIG. 2, the number of repetitions of PUSCH transmission is 1, and the terminal device transmits PUSCH transmission based on the first SRS resource indication.

[0059] As shown in Figure 2, in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI fields: SRI field #1, SRI field #2, PINL field #1, and PINL field #2, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, and PINL field #2 includes a second PINL indication. Note that the relevant contents of these DCI fields have been described above, and will not be described in detail here.

[0060] In the example of Figure 2, the number of repetitions of PUSCH transmission is 1, that is, corresponds to only one transmission opportunity, in this case, the PUSCH transmission corresponds to a single TRP transmission, and the terminal device can transmit PUSCH transmission according to the first SRS resource indication, that is, the terminal device selects an SRS resource from the SRS source set #1 according to the indication of SRI field #1, and determines the number of layers and corresponding precoding information corresponding to the selected SRS resource according to the indication of PINL field #1. The above-mentioned SRS resource corresponds to the transmission of PUSCH transmission.

[0061] In the above embodiment, the terminal device may ignore the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes the SRI field (SRI field #2) corresponding to the second SRS resource indication and / or the PINL field (PINL field #2) corresponding to the second SRS resource indication. That is, the terminal device may ignore the SRI field #2 and the PINL field #2. Alternatively, it may be stated that the terminal device does not transmit a corresponding PUSCH transmission based on the SRI, TPMI, and RI corresponding to the SRI field #2 and the PINL field #2. Because the SRI field corresponding to the second SRS resource indication and the PINL field corresponding to the second SRS resource indication are both used to transmit a PUSCH transmission of a multi-TRP, and the PUSCH transmission scheduled by the above DCI is a single-TRP transmission, the terminal device does not need to consider the above SRI field and the above PINL field.

[0062] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on the number of overlaps of the PUSCH transmission and the overlapping scheme corresponding to the PUSCH transmission includes: determining that the PUSCH transmission is transmitted based on a first SRS resource indication when the number of overlaps of the PUSCH transmission is two and the overlapping scheme corresponding to the PUSCH transmission is sequential mapping, so that the terminal device can transmit the PUSCH transmission based on the first SRS resource indication when the number of overlaps of the PUSCH transmission is two and the overlapping scheme corresponding to the PUSCH transmission is sequential mapping.

[0063] 3 illustrates another example of codebook-based PUSCH transmission scheduled by DCI. In the example of FIG. 3, the number of overlaps of PUSCH transmission is 2, the overlapping scheme is sequential mapping, and the UE transmits PUSCH transmission based on the first SRS resource indication.

[0064] As shown in Figure 3, in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI fields: SRI field #1, SRI field #2, PINL field #1, and PINL field #2, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, and PINL field #2 includes a second PINL indication. Note that the relevant contents of these DCI fields have been described above, and will not be described in detail here.

[0065] In the example of Figure 3, the duplication scheme corresponding to PUSCH transmission is sequential mapping, for example, the terminal device has already received one RRC signaling, and this RRC signaling indicates that the duplication scheme used for PUSCH transmission is sequential mapping. In addition, the meaning of sequential mapping has been explained, and its detailed explanation is omitted here.

[0066] In the example of Figure 3, the number of repetitions of the PUSCH transmission is 2, that is, corresponding to two transmission opportunities. Because the repetition manner of the PUSCH transmission is sequential mapping, the two transmission opportunities before the PUSCH transmission correspond to the same TRP, that is, correspond to a set of SRI, TPMI, and RI indications. In this case, the PUSCH transmission corresponds to a single TRP transmission, and the terminal device transmits the PUSCH transmission according to the first SRS resource indication, that is, the terminal device selects an SRS resource from the SRS source set #1 according to the indication of SRI field #1, and determines the number of layers corresponding to the selected SRS resource and its corresponding precoding information according to the indication of PINL field #1. The above-mentioned SRS resource corresponds to the transmission of the PUSCH transmission.

[0067] In the above embodiment, the terminal device ignores the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes an SRI field (SRI field #2) corresponding to the second SRS resource indication and / or a PINL field (PINL field #2) corresponding to the second SRS resource indication. That is, the terminal device may ignore the SRI field #2 and the PINL field #2, or it may be stated as follows: the terminal device does not transmit corresponding PUSCH transmission based on the SRI, TPMI, and RI corresponding to the SRI field #2 and the PINL field #2. Because the SRI field corresponding to the second SRS resource indication and the PINL field corresponding to the second SRS resource indication are both used to transmit PUSCH transmission of multi-TRP, and the PUSCH transmission scheduled by the above DCI is single-TRP transmission, the terminal device does not need to consider the above SRI field and the above PINL field.

[0068] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on an overlapping number of PUSCH transmissions and an overlapping scheme corresponding to the PUSCH transmissions includes determining, when the overlapping number of PUSCH transmissions is two and the overlapping scheme corresponding to the PUSCH transmissions is cyclic mapping, that the terminal device transmits the PUSCH transmissions based on the first SRS resource indication and the second SRS resource indication, thereby enabling the terminal device to transmit PUSCH transmissions based on the first SRS resource indication and the second SRS resource indication when the overlapping number of PUSCH transmissions is two and the overlapping scheme corresponding to the PUSCH transmissions is cyclic mapping.

[0069] 4 illustrates another example of codebook-based PUSCH transmission scheduled by DCI. In the example of FIG. 4, the number of repetitions of PUSCH transmission is 2, the repetition scheme is cyclic mapping, and the terminal device transmits PUSCH transmission based on the first SRS resource indication and the second SRS resource indication.

[0070] As shown in Figure 4, in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI fields: SRI field #1, SRI field #2, PINL field #1, and PINL field #2, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, and PINL field #2 includes a second PINL indication. Note that the relevant contents of these DCI fields have been described above, and will not be described in detail here.

[0071] In the example of Figure 4, the duplication scheme corresponding to this PUSCH transmission is cyclic mapping.For example, the terminal device has already received one RRC signaling, and this RRC signaling indicates that the duplication scheme used for PUSCH transmission is cyclic mapping.In addition, the meaning of cyclic mapping has been explained, and its detailed explanation is omitted here.

[0072] In the example of Figure 4, the number of repetitions of the PUSCH transmission is 2, that is, corresponding to two transmission opportunities. Because the repetition manner of the PUSCH transmission is cyclic mapping, the two transmission opportunities before the PUSCH transmission correspond to different TRPs, that is, corresponding to different SRI, TPMI, and RI indications. In this case, the PUSCH transmission corresponds to multi-TRP transmission, and the terminal device transmits the PUSCH transmission according to the first SRS resource indication and the second SRS resource indication. That is, the terminal device selects an SRS resource from SRS source set #1 according to the indication of SRI field #1, and determines the number of layers and corresponding precoding information corresponding to the selected SRS resource according to the indication of PINL field #1. The terminal device also selects an SRS resource from SRS source set #2 according to the indication of SRI field #2, and determines the number of layers and corresponding precoding information corresponding to the selected SRS resource according to the indication of PINL field #2. The above-mentioned SRS resources correspond to the transmission of the PUSCH transmission.

[0073] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on an overlapping number of PUSCH transmissions includes determining that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication when the overlapping number of PUSCH transmissions is 2. This allows the terminal device to transmit the PUSCH transmission based on the first SRS resource indication and the second SRS resource indication when the overlapping number of PUSCH transmissions is 2.

[0074] 5 is a diagram illustrating another example of codebook-based PUSCH transmission scheduled by DCI. In the example of FIG. 5, the number of overlaps of PUSCH transmission is 2, and the terminal device transmits PUSCH transmission based on the first SRS resource indication and the second SRS resource indication.

[0075] As shown in Figure 5, in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI fields: SRI field #1, SRI field #2, PINL field #1, and PINL field #2, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, and PINL field #2 includes a second PINL indication. Note that the relevant contents of these DCI fields have been described above, and will not be described in detail here.

[0076] In the example of Figure 5, the number of overlaps of the PUSCH transmission is 2, that is, corresponding to two transmission opportunities, and the two transmission opportunities correspond to different TRPs, that is, respectively corresponding to independent SRI, TPMI, and RI indications. In this case, the PUSCH transmission corresponds to multi-TRP transmission, and the terminal device transmits the PUSCH transmission according to the first SRS resource indication and the second SRS resource indication. That is, the terminal device selects an SRS resource from SRS source set #1 according to the indication of SRI field #1, and determines the number of layers and corresponding precoding information corresponding to the selected SRS resource according to the indication of PINL field #1. The terminal device also selects an SRS resource from SRS source set #2 according to the indication of SRI field #2, and determines the number of layers and corresponding precoding information corresponding to the selected SRS resource according to the indication of PINL field #2. The above-mentioned SRS resources correspond to the transmission of the PUSCH transmission.

[0077] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on a repetition number of PUSCH transmissions and a dynamic switching region included in downlink control information includes: when the repetition number of PUSCH transmissions is 1 and the downlink control information includes the dynamic switching region, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication, thereby allowing the terminal device to transmit a PUSCH transmission based on the first SRS resource indication when the repetition number of PUSCH transmissions is 1 and DCI includes the dynamic switching region.

[0078] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on a repetition number of PUSCH transmissions and a dynamic switching region included in downlink control information includes: when the repetition number of PUSCH transmissions is 1 and the downlink control information includes the dynamic switching region, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the indication of the dynamic switching region, so that when the repetition number of PUSCH transmissions is 1 and DCI includes the dynamic switching region, the terminal device can transmit PUSCH transmission based on the first SRS resource indication and the indication of the dynamic switching region.

[0079] 6 is a diagram illustrating another example of codebook-based PUSCH transmission scheduled by DCI. In the example of FIG. 6, the DCI further includes a dynamic switching region (denoted as a DS field in FIG. 6), the number of overlaps of PUSCH transmission is 1, and the terminal device transmits PUSCH transmission based on the first SRS resource indication.

[0080] As shown in Figure 6, in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI fields: SRI field #1, SRI field #2, PINL field #1, PINL field #2, and DS field, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, PINL field #2 includes a second PINL indication, and the DS field is the dynamic switching field. Note that the relevant content of these DCI fields has been described above, and will not be described in detail here.

[0081] In the above embodiment, the dynamic switching region is used to indicate whether PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication, or based on the first SRS resource indication and the second SRS resource indication. Wherein, transmitting based on one of the first SRS resource indication and the second SRS resource indication means transmitting based on one set of {SRI, TPMI, RI}, and transmitting based on the first SRS resource indication and the second SRS resource indication means transmitting based on two sets of {SRI, TPMI, RI}. Alternatively, it may be stated that the dynamic switching region is used to indicate whether PUSCH transmission is transmitted based on "SRI field #1 and PINL field #1" or based on "SRI field #1, SRI field #2, PINL field #1, and PINL field #2."

[0082] In the example of Figure 6, the repetition number of the PUSCH transmission is 1, that is, corresponds to only one transmission opportunity, in this case, the PUSCH transmission corresponds to a single TRP transmission, and the terminal device can transmit the PUSCH transmission according to the first SRS resource indication, that is, the terminal device selects an SRS resource from the SRS source set #1 according to the indication of the SRI field #1, and determines the number of layers and corresponding precoding information corresponding to the selected SRS resource according to the indication of the PINL field #1. The above-mentioned SRS resource corresponds to the transmission of the PUSCH transmission.

[0083] In the above embodiment, the terminal device ignores the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes the SRI field corresponding to the second SRS resource indication and / or the PINL field corresponding to the second SRS resource indication. That is, the terminal device ignores the SRI field #2 and the PINL field #2. Alternatively, it can be stated that the terminal device does not transmit corresponding PUSCH transmissions based on the SRI, TPMI, and RI corresponding to the SRI field #2 and the PINL field #2. Because the SRI field corresponding to the second SRS resource indication and the PINL field corresponding to the second SRS resource indication are both used to transmit PUSCH transmissions of multi-TRPs, and the PUSCH transmission scheduled by the above DCI is a single-TRP transmission, the terminal device does not need to consider the above SRI field and the above PINL field.

[0084] In the above embodiment, the PUSCH transmission has a repetition count of 1 and corresponds to only one transmission opportunity, so it must correspond to one set of {SRI, TPMI, RI}. In this case, the terminal device can ignore the dynamic switching region, i.e., ignore the indication of the dynamic switching region, or the terminal device does not ignore the dynamic switching region and considers that the dynamic switching region must indicate that the PUSCH transmission is transmitted based on SRI field #1 and PINL field #1.

[0085] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on the number of overlaps of the PUSCH transmission and a dynamic switching region included in the downlink control information includes, when the number of overlaps of the PUSCH transmission is two or more, the downlink control information includes the dynamic switching region, and the dynamic switching region indicates that the PUSCH transmission is transmitted based on one of a first SRS resource indication and a second SRS resource indication, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication. Thus, when the dynamic switching region clearly indicates based on which SRS resource indication the PUSCH transmission is transmitted, the terminal device can transmit the PUSCH transmission based on the SRS resource indication indicated by the dynamic switching region.

[0086] 7 is a diagram illustrating another example of codebook-based PUSCH transmission scheduled by DCI. In the example of FIG. 7, the DCI further includes a dynamic switching region (denoted as a DS field in FIG. 7), the number of overlaps of PUSCH transmission is two, and the terminal device transmits PUSCH transmission based on the first SRS resource indication or based on the first SRS resource indication and the dynamic switching region.

[0087] As shown in Figure 7, in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI fields: SRI field #1, SRI field #2, PINL field #1, PINL field #2, and DS field, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, PINL field #2 includes a second PINL indication, and the DS field is the dynamic switching field. Note that the relevant content of these DCI fields has been described above, and will not be described in detail here.

[0088] In the example of Figure 7, the overlapping number of the PUSCH transmission is 2, that is, corresponding to two transmission opportunities, and the dynamic switching region indicates that the PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication, so the PUSCH transmission corresponds to a single TRP transmission, and the terminal device determines that the PUSCH transmission is based on SRI field #1 and PINL field #1 according to the indication of the dynamic switching region, in this case, the terminal device can transmit the PUSCH transmission based on the first SRS resource indication, that is, the terminal device selects an SRS resource from SRS source set #1 according to the indication of SRI field #1, and determines the number of layers and corresponding precoding information corresponding to the selected SRS resource according to the indication of PINL field #1. The above-mentioned SRS resource corresponds to the transmission of PUSCH transmission.

[0089] In the above embodiment, the terminal device ignores the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes the SRI field corresponding to the second SRS resource indication and / or the PINL field corresponding to the second SRS resource indication. That is, the terminal device ignores the SRI field #2 and the PINL field #2. Alternatively, it can be stated that the terminal device does not transmit corresponding PUSCH transmissions based on the SRI, TPMI, and RI corresponding to the SRI field #2 and the PINL field #2. Because the SRI field corresponding to the second SRS resource indication and the PINL field corresponding to the second SRS resource indication are both used to transmit PUSCH transmissions of multi-TRPs, and the PUSCH transmission scheduled by the above DCI is a single-TRP transmission, the terminal device does not need to consider the above SRI field and the above PINL field.

[0090] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on the number of overlaps of the PUSCH transmission and a dynamic switching region included in the downlink control information includes: when the number of overlaps of the PUSCH transmission is two or more, the downlink control information includes the dynamic switching region, and the dynamic switching region indicates that the PUSCH transmission is transmitted based on a first SRS resource indication and a second SRS resource indication, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

[0091] This allows the terminal device to transmit PUSCH transmission based on the two SRS resource indications indicated by the dynamic switching region when the dynamic switching region clearly indicates that the PUSCH transmission is to be transmitted based on the two SRS resource indications.

[0092] The above describes a method according to an embodiment of the present invention with reference to Figures 2 to 7, taking the example of codebook-based PUSCH transmission as the PUSCH transmission. However, if the PUSCH transmission is non-codebook-based PUSCH transmission, it is the same as the above-mentioned codebook-based PUSCH transmission, except that the DCI for scheduling non-codebook-based PUSCH transmission does not include the above-mentioned PINL indication, i.e., the DCI format does not include the above-mentioned PINL field.

[0093] According to the method of the embodiment of the present invention, after receiving a DCI triggering a PUSCH transmission, the terminal device determines which SRS resource indication(s) the PUSCH transmission is to be transmitted based on based on at least one of the following three factors: the number of times the PUSCH transmission is repeated, the corresponding duplication scheme for the PUSCH transmission, and the indication of a certain DCI region (called a dynamic switching region, but the present invention does not limit this name) in the DCI, thereby accurately determining whether the corresponding uplink transmission corresponds to a single-TRP transmission or a multi-TRP transmission based on the DCI indication, and then transmitting the uplink transmission based on the corresponding DCI indication. In addition, the terminal device can further ignore some unused DCI regions based on the above-mentioned DCI indication.

[0094] <Example of the second aspect> In an embodiment of the present invention, a wireless communication method is provided and explained from the terminal device side.

[0095] 8 is a diagram illustrating an example of a wireless communication method according to an embodiment of the present invention. As shown in FIG. 8, the method includes the following steps:

[0096] 801: A terminal device receives downlink control information, the downlink control information is used to trigger PUSCH or PUCCH transmission, and the downlink control information includes a first TPC indication and a second TPC indication, the first TPC indication and the second TPC indication being associated with different closed-loop power control parameter indexes; and 802: The terminal device determines closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the first TPC instruction and / or the second TPC instruction.

[0097] Note that, although the above-mentioned FIG. 8 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, some operations (steps) may be added or removed. Those skilled in the art are not limited to the description of the above-mentioned FIG. 8, and may make appropriate modifications based on the above content.

[0098] According to the method of the embodiment of the present invention, the two TPC instructions included in the DCI correspond to different closed-loop power control parameter indexes, so that when a single-TRP transmission is performed, the terminal device can determine the closed-loop power control parameters for transmitting a PUSCH or PUCCH transmission based on one of the TPC instructions, and when a multi-TRP transmission is performed, the terminal device can determine the closed-loop power control parameters used for transmitting a PUSCH or PUCCH transmission based on these two TPC instructions, respectively.

[0099] 9 is a diagram illustrating another example of a wireless communication method according to an embodiment of the present invention. As shown in FIG. 9, the method includes the following steps:

[0100] 901: A terminal device receives downlink control information, the downlink control information is used to trigger PUSCH or PUCCH transmission, and the downlink control information includes a first TPC indication and a second TPC indication; and 902: The terminal device determines, based on the number of closed-loop power control parameter indexes corresponding to the PUSCH or PUCCH transmission, whether the closed-loop power control parameters of the PUSCH or PUCCH transmission are determined according to one of the first TPC instruction and the second TPC instruction, or whether the closed-loop power control parameters are determined according to the first TPC instruction and the second TPC instruction.

[0101] Note that, although the above-mentioned FIG. 9 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, some operations (steps) may be added or removed. Those skilled in the art are not limited to the description of the above-mentioned FIG. 9, and may make appropriate modifications based on the above content.

[0102] According to the method of the embodiment of the present invention, it can be determined based on the number of closed-loop power control parameter indexes corresponding to a PUSCH or PUCCH transmission whether the closed-loop power control parameters used for transmitting the PUSCH or PUCCH transmission are determined based on one of the first TPC instruction and the second TPC instruction, or whether the closed-loop power control parameters used for transmitting the PUSCH or PUCCH transmission are determined based on the first TPC instruction and the second TPC instruction.

[0103] In the embodiments of the present invention, the downlink control information is used to trigger PUSCH transmission or PUCCH transmission, that is, it can be said that the downlink control information is used to trigger the transmission of PUSCH transmission or PUCCH transmission, or that the downlink control information is used to schedule the transmission of PUSCH transmission or PUCCH transmission, but the present invention is not limited to this expression.

[0104] In the above embodiment, the cyclic redundancy check (CRC) of the downlink control information may be scrambled by the C-RNTI or the CS-RNTI, but the present invention is not limited thereto. For specific scrambling methods, please refer to the related art, and detailed description thereof will be omitted here.

[0105] In the above-mentioned embodiment, the DCI format of the downlink control information (DCI format) may be DCI format 0_1 ​​or DCI format 0_2, that is, the downlink control information may correspond to DCI format 0_1 ​​or DCI format 0_2. For details regarding the DCI format, please refer to the related art, and detailed description thereof will be omitted here.

[0106] In the above-described embodiment, PUSCH transmission may correspond to PUSCH repetition Type A or PUSCH repetition Type B, but the present invention is not limited thereto. For definitions of PUSCH repetition Type A and PUSCH repetition Type B, please refer to the related art, and detailed description thereof will be omitted here.

[0107] In the above embodiments, the PUSCH transmission may be a non-codebook based PUSCH transmission or a codebook based PUSCH transmission.

[0108] In an embodiment of the present invention, for codebook-based or non-codebook-based PUSCH transmission, the terminal device is configured with two SRS resource sets for codebook-based or non-codebook-based PUSCH transmission in the active BWP, which are SRS source set #1 and SRS source set #2, respectively.

[0109] In some embodiments of the present invention, with regard to the number of closed-loop power control parameter indexes corresponding to PUSCH transmission, in some embodiments, the above-mentioned downlink control information further includes a first SRS resource indication and a second SRS resource indication, and the number of closed-loop power control parameter indexes corresponding to the above-mentioned PUSCH transmission is determined based on the first SRS resource indication and / or the second SRS resource indication.

[0110] For example, if the PUSCH transmission is sent based on one of the first SRS resource indication and the second SRS resource indication, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is one.

[0111] Also, for example, when the PUSCH transmission is transmitted based on a first SRS resource indication and a second SRS resource indication, and the closed-loop power control parameter index associated with the first SRS resource indication is the same as the closed-loop power control parameter index associated with the second SRS resource indication, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1.

[0112] Also, for example, when a PUSCH transmission is sent based on a first SRS resource indication and a second SRS resource indication, and the closed-loop power control parameter index associated with the first SRS resource indication is different from the closed-loop power control parameter index associated with the second SRS resource indication, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is two.

[0113] In the above embodiment, the first SRS resource indication is used to indicate resources in SRS source set #1. For example, when SRS source set #1 includes two or more SRS resources, the DCI field (referred to as SRS resource indicator field #1 or SRI field #1) corresponding to the above first SRS resource indication is used to select one SRS resource from SRS source set #1 for transmitting the corresponding PUSCH transmission; when SRS source set #1 includes only one SRS resource, the size of the DCI field corresponding to the above first SRS resource indication is 0, and the above first SRS resource indication is the SRS resource.

[0114] In the above embodiment, the second SRS resource indication is used to indicate resources in SRS source set #2. For example, when SRS source set #2 includes two or more SRS resources, the DCI field (referred to as SRS resource indicator field #2 or SRI field #2) corresponding to the above second SRS resource indication is used to select one SRS resource from SRS source set #2 for transmitting the corresponding PUSCH transmission. When SRS source set #2 includes only one SRS resource, the size of the DCI field corresponding to the above second SRS resource indication is 0, and the above second SRS resource indication is the SRS resource.

[0115] In the above embodiment, the first TPC indication corresponds to the above first SRS resource indication or corresponds to the DCI region corresponding to the above first SRS resource indication, and the second TPC indication corresponds to the above second SRS resource indication or corresponds to the DCI region corresponding to the above second SRS resource indication.

[0116] In an embodiment of the present invention, with regard to the number of closed-loop power control parameter indexes corresponding to a PUCCH transmission, in some embodiments, the above-mentioned downlink control information further includes a first PUCCH resource indication, which is used to indicate a PUCCH resource used to transmit the above-mentioned PUCCH transmission, and the number of closed-loop power control parameter indexes corresponding to the PUCCH transmission can be determined based on the first PUCCH resource indication.

[0117] For example, if the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, the number of closed-loop power control parameter indexes corresponding to the PUCCH transmission is one.

[0118] In one example, the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, which means that the PUCCH resource is associated with one spatial relationship.

[0119] In another example, the PUCCH resource indicated by the first PUCCH resource indication being associated with one closed-loop power index refers to the PUCCH resource being associated with two spatial relationships, and the two spatial relationships being associated with the same closed-loop power index.

[0120] Also, for example, if the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices, the number of closed-loop power control parameter indices corresponding to the PUCCH transmission is two.

[0121] In one example, the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices, which means that the PUCCH resource is associated with two spatial relationships, and the two spatial relationships are associated with different closed-loop power indices.

[0122] For the concept of spatial relationships, reference can be made to related art, and a detailed description thereof will be omitted here.

[0123] In an embodiment of the present invention, in 902, if the number of closed-loop power control parameter indexes associated with the PUSCH or PUCCH transmission is 1, the terminal device determines closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on one of the first TPC indication and the second TPC indication.

[0124] For example, if the value of the closed-loop power control parameter index corresponding to the PUSCH or PUCCH transmission is 0, the terminal device determines the closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the first TPC instruction.

[0125] Also, for example, if the value of the closed-loop power control parameter index corresponding to the PUSCH or PUCCH transmission is 1, the terminal device determines the closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the second TPC instruction.

[0126] Also, for example, as described above, the downlink control information may further include a first SRS resource indication and a second SRS resource indication, and when the PUSCH transmission is transmitted based on the first SRS resource indication, the terminal device determines closed-loop power control parameters for transmitting the PUSCH transmission based on the first TPC indication.

[0127] In the above embodiment, the terminal device may ignore a DCI field corresponding to a TPC instruction that is not used for transmitting a PUSCH or PUCCH transmission, among the above first TPC instruction and the above second TPC instruction. For example, when the above first TPC instruction is used to determine closed-loop power control parameters for transmitting a PUSCH or PUCCH transmission, the terminal device may ignore a DCI field (TPC field #2) corresponding to the second TPC instruction. Conversely, when the above second TPC instruction is used to determine closed-loop power control parameters for transmitting a PUSCH or PUCCH transmission, the terminal device may ignore a DCI field (TPC field #1) corresponding to the first TPC instruction.

[0128] In the above-mentioned embodiments, in some embodiments, the number of closed-loop power control parameter indexes associated with the PUSCH transmission is 1, which means that the downlink control information further includes a first SRS resource indication and a second SRS resource indication, and the PUSCH transmission is sent based on one of the first SRS resource indication and the second SRS resource indication.

[0129] That is, when a PUSCH transmission is sent based on one SRS resource indication, the SRS resource indication is associated with one closed-loop power control index, and the PUSCH transmission corresponds to this one closed-loop power control index, which means that the number of closed-loop power control parameter indexes associated with the PUSCH transmission is 1.

[0130] In the above-mentioned embodiments, in some embodiments, the number of closed-loop power control parameter indexes associated with the PUSCH transmission being 1 refers to the following: the downlink control information further includes a first SRS resource indication and a second SRS resource indication, the PUSCH transmission is sent based on the first SRS resource indication and the second SRS resource indication, and the closed-loop power control parameter index associated with the first SRS resource indication is the same as the closed-loop power control parameter index associated with the second SRS resource indication.

[0131] That is, when a PUSCH transmission is sent based on two SRS resource indications, each of the two SRS resource indications corresponds to one closed-loop power control index, and the two closed-loop power control parameter indexes are the same, the number of closed-loop power control parameter indexes associated with the PUSCH transmission is 1.

[0132] In the above-mentioned embodiments, in some embodiments, the number of closed-loop power control parameter indexes associated with PUCCH transmission is 1, which means that the downlink control information further includes a first PUCCH resource indication, which is used to indicate the PUCCH resource used for PUCCH transmission, and the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index.

[0133] That is, when a PUCCH resource used for PUCCH transmission is associated with one closed-loop power control parameter index, the number of closed-loop power control parameter indexes associated with the PUCCH transmission is one.

[0134] In the above-mentioned embodiment, the PUCCH resource indicated by the first PUCCH resource indication being associated with one closed-loop power index may refer to the PUCCH resource being associated with one spatial relationship, or may refer to the PUCCH resource being associated with two spatial relationships, and the two spatial relationships being associated with the same closed-loop power index.

[0135] In an embodiment of the present invention, in 902, if the number of closed-loop power control parameter indexes associated with a PUSCH or PUCCH transmission is 2, the terminal device determines the closed-loop power control parameters for the PUSCH or PUCCH transmission based on the first TPC instruction and the second TPC instruction.

[0136] In some embodiments, the closed loop power control parameter index value corresponding to the first TPC instruction is 0 and the closed loop power control parameter index value corresponding to the second TPC instruction is 1.

[0137] In some embodiments, as described above, the downlink control information further includes a first SRS resource indication and a second SRS resource indication, in which case the closed-loop power control parameter index corresponding to the first TPC indication is determined by the closed-loop power control parameter index associated with the first SRS resource indication, and the closed-loop power control parameter index corresponding to the second TPC indication is determined by the closed-loop power control parameter index associated with the second SRS resource indication.

[0138] In the above-mentioned embodiments, in some embodiments, the number of closed-loop power control parameter indexes associated with the PUSCH transmission is two means that the downlink control information further includes a first SRS resource indication and a second SRS resource indication, the PUSCH transmission is sent based on the first SRS resource indication and the second SRS resource indication, and the closed-loop power control parameter index associated with the first SRS resource indication is different from the closed-loop power control parameter index associated with the second SRS resource indication.

[0139] That is, when a PUSCH transmission is sent based on two SRS resource indications, but the closed-loop power control parameter indexes associated with the two SRS resource indications are different, the number of closed-loop power control parameter indexes associated with the PUSCH transmission is two.

[0140] In the above-mentioned embodiments, in some embodiments, the number of closed-loop power control parameter indexes associated with PUCCH transmission is two, which means that the downlink control information further includes a first PUCCH resource indication, which is used to indicate the PUCCH resource used for PUCCH transmission, and the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indexes.

[0141] That is, when a PUCCH resource used for PUCCH transmission is associated with two closed-loop power control parameter indexes, the number of closed-loop power control parameter indexes associated with the PUCCH transmission is two.

[0142] In the above embodiment, the PUCCH resource indicated by the first PUCCH resource indication being associated with two closed-loop power indices may refer to the PUCCH resource being associated with two spatial relationships, and the two spatial relationships being associated with different closed-loop power indices.

[0143] In an embodiment of the present invention, for codebook-based PUSCH transmission, the above-mentioned downlink control information may further include a first PINL indication and a second PINL indication.

[0144] The DCI field (Precoding information and number of layers #1) corresponding to the first PINL indication is used to indicate the number of layers corresponding to the SRS resource and the transmission precoder corresponding to the number of layers. The SRS resource is indicated by the first SRS resource indication, for example, indicated by the above-mentioned SRS resource indicator field #1. That is, the first SRS resource indication is used to indicate the SRS resource, and the first PINL indication is used to indicate the number of layers corresponding to the SRS resource indicated by the first SRS resource indication and the corresponding transmission precoder.

[0145] The DCI field (Precoding information and number of layers #2) corresponding to the second PINL indication is used to indicate the number of layers corresponding to the SRS resource and the transmission precoder corresponding to the number of layers. The SRS resource is indicated by the first SRS resource indication, for example, indicated by the above-mentioned SRS resource indicator field #1. That is, the second SRS resource indication is used to indicate the SRS resource, and the second PINL indication is used to indicate the number of layers corresponding to the SRS resource indicated by the second SRS resource indication and the corresponding transmission precoder.

[0146] In an embodiment of the present invention, the downlink control information may further indicate a repetition number of PUSCH transmission, for example, the repetition number of PUSCH transmission may be determined based on the number of repetitions indicated in a Time Domain Source Allocation (TDRA) indication of the downlink control information.

[0147] For example, when the number of repetitions is 1, PUSCH transmission of PUSCH repetition type A corresponds to one repetition, and PUSCH transmission of PUSCH repetition type B corresponds to one non-imal repetition.

[0148] Furthermore, for example, when the number of repetitions is 2, PUSCH transmission of PUSCH repetition type A corresponds to two repetitions, and PUSCH transmission of PUSCH repetition type B corresponds to two non-imal repetitions.

[0149] Furthermore, for example, when the number of repetitions is 4, PUSCH transmission of PUSCH repetition type A corresponds to four repetitions, and PUSCH transmission of PUSCH repetition type B corresponds to four non-imal repetitions.

[0150] In the embodiments of the present invention, a duplication scheme corresponding to PUSCH transmission can be configured by radio resource control (RRC) signaling. For example, the duplication scheme can be sequential mapping or cyclic mapping. Note that the relevant content of the duplication scheme has already been described in the embodiments of the first aspect, and the content thereof is incorporated herein, so a detailed description thereof will be omitted.

[0151] In the embodiment of the present invention, the definition of the closed-loop power control parameter index can be referred to the related art, and the detailed description thereof will be omitted here.

[0152] To make the method of FIG. 8 and FIG. 9 easier to understand, the method according to the embodiment of the present invention will be described below in conjunction with the drawings.

[0153] 10 is a diagram illustrating an example of PUSCH transmission scheduled by DCI. In the example of FIG. 10, the number of repetitions is 1 (N_rep=1), and the terminal device determines closed-loop power control parameters for sending the PUSCH transmission based on the first TPC instruction.

[0154] As shown in Figure 10, in this example, the PUSCH transmission is codebook-based PUSCH transmission, and the DCI includes the following DCI fields: TPC field #1, TPC field #2, SRI field #1, SRI field #2, PINL field #1, and PINL field #2, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, and PINL field #2 includes a second PINL indication, TPC field #1 corresponds to the first SRS resource indication or corresponds to SRI field #1, and TPC field #2 corresponds to the second SRS resource indication or corresponds to SRI field #2. Note that the relevant contents of these DCI fields have been described above, and will not be described in detail here.

[0155] In the example of Figure 10, the PUSCH transmission is sent based on a first SRS resource indication, the first SRS resource indication is associated with one closed-loop power control parameter index, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1, and the PUSCH transmission corresponds to one closed-loop power control parameter index. In this case, the terminal device can determine the value of the closed-loop power control parameter index of the corresponding PUSCH transmission based on SRI field #1, and in the example of Figure 10, the value is 1, i.e., l=1.

[0156] In the example of Figure 10, since the PUSCH transmission corresponds to only one closed-loop power control parameter index (l = 1), the terminal device determines the closed-loop power control parameters of the corresponding PUSCH transmission based on one of the two TPC fields, i.e., TPC field #1.

[0157] In the example of FIG. 10, the terminal device can ignore TPC field #2, or it can be said that the terminal device does not transmit a corresponding PUSCH transmission based on a TPC command corresponding to TPC field #2.

[0158] 11 is a diagram illustrating another example of PUSCH transmission scheduled by DCI. In the example of FIG. 11, the number of repetitions is 1 (N_rep=1), and the terminal device determines closed-loop power control parameters for sending the PUSCH transmission based on the second TPC instruction.

[0159] 11 , in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI fields: TPC field #1, TPC field #2, SRI field #1, SRI field #2, PINL field #1, and PINL field #2, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, and PINL field #2 includes a second PINL indication, and TPC field #1 is associated with closed-loop power control parameter index 0 (l=0) of PUSCH transmission, and TPC field #2 is associated with closed-loop power control parameter index 1 (l=1) of PUSCH transmission. Note that the relevant contents of these DCI fields have been described above, and will not be described in detail here.

[0160] In the example of Figure 11, the PUSCH transmission is sent based on a first SRS resource indication, and the first SRS resource indication is associated with one closed-loop power control parameter index, so the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1. Since the PUSCH transmission corresponds to one closed-loop power control parameter index, the terminal device can determine the value of the closed-loop power control parameter index of the corresponding PUSCH transmission based on SRI field #1, which in the example of Figure 11 is 1, i.e., l=1.

[0161] In the example of Figure 11, since the PUSCH transmission corresponds to only one closed-loop power control parameter index (l = 1), the terminal device determines the closed-loop power control parameters of the corresponding PUSCH transmission based on one of the two TPC fields.

[0162] In the example of FIG. 11, TPC field #2 is associated with l=1, so the terminal device determines the closed-loop power control parameters of the corresponding PUSCH transmission based on TPC field #2.

[0163] In the above embodiment, the terminal device can ignore TPC field #1, or it can be said that the terminal device does not transmit a corresponding PUSCH transmission based on a TPC command corresponding to TPC field #1.

[0164] 12 is a diagram illustrating another example of PUSCH transmission scheduled by DCI. In the example of FIG. 12, the number of repetitions is 4 (N_rep=4), and the terminal device determines closed-loop power control parameters for sending the PUSCH transmission based on the second TPC instruction.

[0165] 12 , in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI fields: TPC field #1, TPC field #2, SRI field #1, SRI field #2, PINL field #1, and PINL field #2, where SRI field #1 includes a first SRS resource indication, SRI field #2 includes a second SRS resource indication, PINL field #1 includes a first PINL indication, and PINL field #2 includes a second PINL indication, and TPC field #1 is associated with closed-loop power control parameter index 0 (l=0) of PUSCH transmission, and TPC field #2 is associated with closed-loop power control parameter index 1 (l=1) of PUSCH transmission. Note that the relevant contents of these DCI fields have been described above, and will not be described in detail here.

[0166] In the example of Figure 12, the duplication manner of PUSCH transmission is sequential mapping, that is, the first and second transmission opportunities corresponding to PUSCH transmission correspond to one TRP or one set of SRI, TPMI, and RI indications, and the third and fourth transmission opportunities corresponding to PUSCH transmission correspond to another TRP or another set of SRI, TPMI, and RI indications, and rotate accordingly.

[0167] In the example of Figure 12, the PUSCH transmission is sent based on a first SRS resource indication and a second SRS resource indication, but the first SRS resource indication and the second SRS resource indication are associated with the same closed-loop power control parameter index, i.e., l=1, so the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1. Since the PUSCH transmission corresponds to one closed-loop power control parameter index, the terminal device can determine the value of the closed-loop power control parameter index of the corresponding PUSCH transmission based on SRI field #1 and SRI field #2, which in the example of Figure 12 is 1, i.e., l=1.

[0168] In the example of Figure 12, since the PUSCH transmission corresponds to only one closed-loop power control parameter index (l = 1), the terminal device determines the closed-loop power control parameters of the corresponding PUSCH transmission based on one of the two TPC fields.

[0169] In the example of FIG. 12, TPC field #2 is associated with l=1, so the terminal device determines the closed-loop power control parameters of the corresponding PUSCH transmission based on TPC field #2.

[0170] In the example of FIG. 12, the terminal device can ignore TPC field #1, or it can be said that the terminal device does not transmit a corresponding PUSCH transmission based on a TPC command corresponding to TPC field #1.

[0171] As described above, in Figures 10 to 12, the method in the embodiment of the present invention has been described using the example where PUSCH transmission is codebook-based PUSCH transmission. However, if the PUSCH transmission is non-codebook-based PUSCH transmission, it is similar to the above-mentioned codebook-based PUSCH transmission, with the main difference being that the DCI for scheduling non-codebook-based PUSCH transmission does not include the above-mentioned PINL indication, i.e., the DCI format does not include the above-mentioned PINL field.

[0172] 13 is a diagram illustrating an example of PUCCH transmission scheduled by DCI. In the example of FIG. 13, the terminal device determines closed-loop power control parameters for sending the PUCCH transmission based on the first TPC instruction.

[0173] In the example of Figure 13, the DCI schedules the PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, in this case, the DCI corresponds to scheduling the PUCCH transmission. Wherein, the CRC of the DCI may be scrambled by the C-RNTI or the CS-RNTI, and the DCI may correspond to DCI format 1_1 or DCI format 1_2. In addition, there is no duplication of the PUCCH resource carrying the HARQ-ACK information, that is, the duplication count corresponding to the PUCCH resource is 1, for example, "nrofSlots" is not set in the corresponding PUCCH configuration (PUCCH-config). Furthermore, the PUCCH resource carrying the HARQ-ACK information corresponds to one closed-loop power control parameter index, for example, the PUCCH is associated with one PUCCH-spatialrelationInfo, and the PUCCH-spatialrelationInfo includes one closedLoopIndex parameter, the value of which is 1, that is, the above parameter indicates that the closed-loop power control index corresponding to the PUCCH is 1 (l=1). In the example of Figure 13, the DCI includes the following DCI fields: TPC field #1 and TPC field #2.

[0174] In the above embodiment, since the PUCCH transmission corresponds to one closed-loop power control parameter index (i.e., corresponding to l=1), the terminal device determines the closed-loop power control parameters of the corresponding PUCCH transmission based on one of the two TPC fields (TPC field #1).

[0175] In the above embodiment, the terminal device can ignore TPC field #2, or it can be said that the terminal device does not transmit the corresponding PUCCH transmission based on the TPC command corresponding to TPC field #2.

[0176] 14 illustrates another example of PUCCH transmission scheduled by DCI. In the example of FIG. 14, the terminal device determines closed-loop power control parameters for sending the PUCCH transmission based on the second TPC instruction.

[0177] In the example of Figure 14, the DCI schedules a PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, in this case, the DCI corresponds to scheduling the PUCCH transmission. Wherein, the CRC of the DCI may be scrambled by the C-RNTI or the CS-RNTI, and the DCI may correspond to DCI format 1_1 or DCI format 1_2. In addition, there is no duplication of the PUCCH resource carrying the HARQ-ACK information, that is, the duplication count corresponding to the PUCCH resource is 1, for example, "nrofSlots" is not set in the corresponding PUCCH configuration (PUCCH-config). Furthermore, the PUCCH resource carrying the HARQ-ACK information corresponds to one closed-loop power control parameter index, for example, the PUCCH is associated with one PUCCH-spatialrelationInfo, and the PUCCH-spatialrelationInfo includes a closedLoopIndex parameter, the value of which is 1, that is, the above parameter indicates that the closed-loop power control index corresponding to the PUCCH is 1 (l=1). In the example of Figure 14, the DCI includes the following DCI fields: TPC field #1 and TPC field #2, of which TPC field #1 is associated with PUCCH closed-loop power control parameter index 0 (l=0), and TPC field #2 is associated with PUCCH closed-loop power control parameter index 1 (l=1).

[0178] In the example of Figure 14, the DCI may further include a PUCCH resource indication (referred to as a first PUCCH resource indication), and the terminal device may determine a PUCCH resource based on the corresponding PUCCH resource indication in the DCI, and then obtain a closed-loop power control parameter index (l = 1) corresponding to the corresponding PUCCH resource based on the determined PUCCH resource.

[0179] In the above embodiment, since the PUCCH transmission corresponds to one closed-loop power control parameter index (i.e., corresponds to l=1), the terminal device determines the closed-loop power control parameters of the corresponding PUCCH transmission based on one of the two TPC fields. For example, since TPC field #2 is associated with l=1 and the PUCCH transmission is also associated with l=1, the terminal device determines the closed-loop power control parameters of the corresponding PUCCH transmission based on TPC field #2.

[0180] In the above embodiment, the terminal device can ignore TPC field #2, or it can be said that the terminal device does not transmit the corresponding PUCCH transmission based on the TPC command corresponding to TPC field #2.

[0181] 15 is a diagram illustrating another example of PUCCH transmission scheduled by DCI. In the example of FIG. 15, the terminal device determines closed-loop power control parameters for sending the PUCCH transmission based on the first TPC instruction.

[0182] In the example of Figure 15, DCI schedules PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, in this case, it corresponds to the DCI scheduling the PUCCH transmission. Wherein, the CRC of the DCI may be scrambled by C-RNTI or CS-RNTI, and the DCI may correspond to DCI format 1_1 or DCI format 1_2. In addition, overlapping of the PUCCH resource carrying the HARQ-ACK information occurs, that is, the overlapping number corresponding to the PUCCH resource is 2, for example, "nrofSlots" set in the corresponding PUCCH configuration (PUCCH-config) is n2. Furthermore, the PUCCH resource carrying the HARQ-ACK information corresponds to one closed-loop power control parameter index, for example, the PUCCH is associated with one PUCCH-spatialrelationInfo, and the PUCCH-spatialrelationInfo includes one closedLoopIndex parameter, the value of which is 1, that is, the above parameter indicates that the closed-loop power control index corresponding to the PUCCH is 1 (l=1). In the example of Figure 15, the DCI includes the following DCI fields: TPC field #1 and TPC field #2.

[0183] In the above embodiment, since the PUCCH transmission corresponds to one closed-loop power control parameter index (i.e., corresponding to l=1), the terminal device determines the closed-loop power control parameters of the corresponding PUCCH transmission based on one of the two TPC fields (TPC field #1).

[0184] In the above embodiment, the terminal device can ignore TPC field #2, or it can be said that the terminal device does not transmit a corresponding PUSCH transmission based on a TPC command corresponding to TPC field #2.

[0185] 16 illustrates another example of PUCCH transmission scheduled by DCI. In the example of FIG. 16, the terminal device determines closed-loop power control parameters for sending the PUCCH transmission based on the first TPC instruction.

[0186] In the example of Figure 16, the DCI schedules a PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information. In this case, the DCI corresponds to scheduling the PUCCH transmission. Wherein, the CRC of the DCI may be scrambled by the C-RNTI or the CS-RNTI, and the DCI may correspond to DCI format 1_1 or DCI format 1_2. In addition, there is no duplication of the PUCCH resource carrying the HARQ-ACK information, that is, the duplication count corresponding to the PUCCH resource is 1, for example, the corresponding PUCCH configuration (PUCCH-config) does not have "nrofSlots" configured. Furthermore, the PUCCH resource carrying the HARQ-ACK information corresponds to one closed-loop power control parameter index, for example, the PUCCH is associated with PUCCH-spatialrelationInfo#1 and PUCCH-spatialrelationInfo#2, where PUCCH-spatialrelationInfo#1 includes one closedLoopIndex parameter, the value of which is 1, i.e., l=1, and PUCCH-spatialrelationInfo#2 includes one closedLoopIndex parameter, the value of which is 1, i.e., l=1. In the example of Figure 16, the DCI includes the following DCI fields: TPC field #1 and TPC field #2.

[0187] In the above embodiment, since the PUCCH transmission corresponds to one closed-loop power control parameter index (i.e., corresponding to l=1), the terminal device determines the closed-loop power control parameters of the corresponding PUCCH transmission based on one of the two TPC fields (TPC field #1).

[0188] In the above embodiment, the terminal device can ignore TPC field #2, or it can be said that the terminal device does not transmit the corresponding PUCCH transmission based on the TPC command corresponding to TPC field #2.

[0189] 17 illustrates another example of PUCCH transmission scheduled by DCI. In the example of FIG. 17, the terminal device determines closed-loop power control parameters for sending the PUCCH transmission based on the first TPC instruction and the second TPC instruction.

[0190] In the example of Figure 17, the DCI schedules a PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, in this case, the DCI corresponds to scheduling the PUCCH transmission. Wherein, the CRC of the DCI may be scrambled by the C-RNTI or the CS-RNTI, and the DCI may correspond to DCI format 1_1 or DCI format 1_2. In addition, there is no duplication of the PUCCH resource carrying the HARQ-ACK information, that is, the duplication count corresponding to the PUCCH resource is 1, for example, the corresponding PUCCH configuration (PUCCH-config) does not have "nrofSlots" configured. Furthermore, the PUCCH resource carrying the HARQ-ACK information corresponds to two closed-loop power control parameter indexes, for example, the PUCCH is associated with PUCCH-spatialrelationInfo#1 and PUCCH-spatialrelationInfo#2, where PUCCH-spatialrelationInfo#1 includes one closedLoopIndex parameter, the value of which is 0, i.e., l=0, and PUCCH-spatialrelationInfo#2 includes one closedLoopIndex parameter, the value of which is 1, i.e., l=1. In the example of Figure 17, the DCI includes the following DCI fields: TPC field #1 and TPC field #2.

[0191] In the above embodiment, since the PUCCH transmission corresponds to two closed-loop power control parameter indexes (i.e., l=0 and l=1), the terminal device determines the closed-loop power control parameter of the corresponding PUCCH transmission based on these two TPC fields (TPC field #1 and TPC field #2). For example, TPC field #1 corresponds to TRP #1, that is, when the closed-loop power control parameter is 0 (l=0), and TPC field #2 corresponds to TRP #2, that is, when the closed-loop power control parameter is 1 (l=1).

[0192] According to the method of the embodiment of the present invention, on the one hand, the two TPC instructions included in the DCI correspond to different closed-loop power control parameter indexes, so that when a single-TRP transmission is performed, the terminal device can determine the closed-loop power control parameters for transmitting a PUSCH or PUCCH transmission based on one of the TPC instructions, and when a multi-TRP transmission is performed, the terminal device can determine the closed-loop power control parameters to be used for transmitting a PUSCH or PUCCH transmission based on these two TPC instructions, respectively; on the other hand, the terminal device can determine whether to determine the closed-loop power control parameters to be used for transmitting a PUSCH or PUCCH transmission based on one of the first TPC instruction and the second TPC instruction, or whether to determine the closed-loop power control parameters to be used for transmitting a PUSCH or PUCCH transmission based on the first TPC instruction and the second TPC instruction, based on the number of closed-loop power control parameter indexes corresponding to the PUSCH or PUCCH transmission. This clarifies how the terminal device determines the power control parameters of the corresponding uplink transmission based on the DCI when the DCI contains two TPC instructions, thereby avoiding erroneous instructions and improving the reliability of the system.

[0193] <Example of the third aspect> In the embodiments of the present invention, a wireless communication method is provided, and the description is given from the terminal device side. In the embodiments of the present invention, unless otherwise specified, the active BWP refers to the BWP where the terminal device is currently located, i.e., the BWP before switching, and the first BWP refers to the target BWP when the terminal device performs BWP switching, i.e., the BWP after switching.

[0194] 18 is a diagram illustrating an example of a wireless communication method according to an embodiment of the present invention. As shown in FIG. 18, the method includes the following steps:

[0195] 1801: A terminal device receives downlink control information, the downlink control information is associated with a first DCI region, the first DCI region refers to at least one of the following: an SRS resource indicator region, a Precoding information and number of layers region, a TPC command for scheduled PUCCH region, and a TPC command for scheduled PUSCH region, the BWP region of the downlink control information indicates a first BWP, where the first BWP is not an active BWP, the first DCI region exists when decoding the first DCI region according to parameters of the first BWP, and the first DCI region does not exist when decoding the first DCI region according to parameters of the active BWP; and 1802: The terminal device determines that the first DCI area does not exist for the first BWP.

[0196] Note that, although the above-mentioned FIG. 18 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, some operations (steps) may be added or removed. Those skilled in the art are not limited to the description of the above-mentioned FIG. 18, and may make appropriate modifications based on the above content.

[0197] According to the method of the embodiment of the present invention, when a BWP switch occurs, if a DCI field exists when decoding based on the parameters of the target BWP but does not exist when decoding based on the parameters of the active BWP, the transmission scheduled by the DCI occurs in the target BWP and therefore needs to be indicated by the DCI field. However, since the DCI does not include the DCI field, generally speaking, the DCI field is decoded using a zero-padded method, i.e., the indication of the DCI field is considered to be "all zeros" based on the size of the DCI field in the target BWP. However, if the DCI field is one of the SRS resource indicator field, the Precoding information and number of layers field, the TPC command for scheduled PUCCH field, and the TPC command for scheduled PUSCH field, it is inappropriate to interpret the DCI field as "all zeros," which violates the true meaning (original intent) of the scheduling DCI. For example, if the DCI field is considered to be "all zeros," it means that the corresponding indication is an indication of multi-TRP uplink transmission. However, in reality, the scheduling DCI is intended to indicate a single TRP uplink transmission. Therefore, in this method, the terminal device does not regard the DCI as "all 0s" but regards the DCI field as not existing. This means that even if the DCI is decoded based on the parameters of the target BWP, the corresponding DCI field can be accurately decoded because it is intended to indicate a single TRP uplink transmission. This can prevent erroneous uplink transmission due to the terminal device misinterpreting the DCI, thereby preventing degradation of system performance.

[0198] In some embodiments, "the first DCI field exists when the first DCI field is decoded based on the parameters of the first BWP, and the first DCI field does not exist when the first DCI field is decoded based on the parameters of the active BWP" means that the first DCI field is not set for the active BWP, and the first DCI field is set for the first BWP. That is, the first DCI field is not set for the active BWP in which the terminal device is located, but the first DCI field is set for the target BWP to which the terminal device switches, so the terminal device considers that the first DCI field does not exist for the target BWP.

[0199] In some embodiments, "the terminal device considers the first DCI field to be absent for the first BWP" means that the terminal device considers the first DCI field to be zero-padded when decoding the first BWP, and ignores the first DCI field for the first BWP. That is, when the terminal device decodes the first DCI field for the target BWP, it first zero-pads all corresponding bits based on the size of the first DCI field, and then ignores the first DCI field.

[0200] In some embodiments, "the terminal device considers the first DCI field to be absent for the first BWP" refers to the terminal device considering the first DCI field to be not configured for the first BWP, i.e., the terminal device directly considers the first DCI field to be not configured when decoding the first DCI field for the target BWP.

[0201] 19 is a diagram illustrating another example of a wireless communication method according to an embodiment of the present invention. As shown in FIG. 19, the method includes the following steps:

[0202] 1901: A terminal device receives downlink control information, the downlink control information scheduling a PUSCH, the downlink control information associated with a second DCI region, the second DCI region referring to at least one of an SRS resource indicator region and a Precoding information and number of layers region, the BWP region of the downlink control information indicating a first BWP, the first BWP not being an active BWP, one SRS resource set for codebook-based or non-codebook-based PUSCH transmission configured for the active BWP, and two SRS resource sets for codebook-based or non-codebook-based PUSCH transmission configured for the first BWP; and 1902: For decoding the second DCI area, the terminal device considers that one SRS resource set for codebook-based or non-codebook-based PUSCH transmission is configured for the first BWP.

[0203] Note that, although the above-mentioned FIG. 19 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, some operations (steps) may be added or removed. Those skilled in the art are not limited to the description of the above-mentioned FIG. 19, and may make appropriate modifications based on the above content.

[0204] According to the method of the embodiment of the present invention, when a BWP switch occurs, two sets of SRS resources are configured when interpreted based on the parameters of the target BWP, so the DCI contains two SRS resource indications and two PINL indications. When only one set of SRS resources is configured when interpreted based on the parameters of the active BWP, the DCI contains only one SRS resource indication and one PINL indication. Since the transmission scheduled by the DCI occurs in this target BWP, two SRS resource indications and two PINL indications are required. However, since the DCI does not contain a second SRS resource indication and a second PINL indication, generally speaking, corresponding DCI fields can be additionally generated for the SRS resource indication and the PINL indication using a zero-padding scheme. However, if this DCI field is an SRS resource indicator field and / or a precoding information and number of layers field, interpreting the DCI field as "all zeros" is inappropriate, i.e., defeats the purpose of the scheduling DCI. For example, if the DCI field is considered to be "all 0", it means that the corresponding instruction is an instruction for multi-TRP PUSCH transmission. However, in reality, the scheduling DCI is intended to indicate single-TRP PUSCH transmission. Therefore, in this method, the terminal device does not consider that two SRS resource sets for codebook-based or non-codebook-based PUSCH transmission are configured for the target BWP, but considers that one SRS resource set for codebook-based or non-codebook-based PUSCH transmission is configured for the target BWP. This means that even if the DCI is decoded based on the parameters of the target BWP, the corresponding DCI field can be accurately decoded because it is for indicating single-TRP uplink transmission. Therefore, erroneous uplink transmission due to the terminal device misinterpreting the DCI can be avoided, thereby preventing degradation of system performance.

[0205] To make the method of FIGS. 18 and 19 easier to understand, the method according to the embodiment of the present invention will be described below in conjunction with the drawings.

[0206] Hereinafter, DCI scheduling codebook-based PUSCH transmission will be taken as an example.

[0207] In this example, the DCI format may be DCI format 0_1 ​​or DCI format 0_2, and the following description will be given taking DCI format 0_1 ​​as an example.

[0208] In this example, for DCI format 0_1, the BWP before switching is BWP#1, which is configured with one SRS resource set for transmitting PUSCH transmission, i.e., SRS resource set#1, and the BWP after switching is BWP#2, which is configured with two SRS resource sets for transmitting PUSCH transmission, which are SRS resource set#2 and SRS resource set#3, and which further includes a second TPC field configured for indicating closed-loop power control parameters for the corresponding PUSCH transmission, or which may be stated as follows: BWP#2 is further configured with one additional TPC field configured for indicating closed-loop power control parameters for the corresponding PUSCH.

[0209] In this example, the CRC of the DCI may be scrambled by the C-RNTI or the CS-RNTI. Furthermore, the BWP (BWP#2) indicated by the BWP field of the DCI is different from the active BWP (BWP#1), that is, the DCI instructs the terminal device to perform BWP switching. At this time, the terminal device receives the DCI through BWP#1, and performs BWP switching after receiving the DCI, that is, switches from BWP#1 to BWP#2, and the PUSCH transmission scheduled by the DCI is transmitted through BWP#2, that is, transmitted based on the parameters corresponding to BWP#2.

[0210] In this example, the DCI includes the following DCI fields: TPC command for scheduled PUSCH field #1 (TPC field #1), SRS resource indicator field #1 (SRI field #1), and Precoding information and number of layers #1 (PINL field #1).

[0211] In this example, the PUSCH transmission may correspond to PUSCH repetition Type A or PUSCH repetition Type B.

[0212] FIG. 20 is a diagram showing an example in which a terminal device performs BWP switching.

[0213] As shown in Figure 20, the DCI format 0_1 ​​field is generated based on the parameters of UL BWP#1, PUSCH transmission needs to be sent using UL BWP#2, and the decoding of the DCI needs to be based on the parameters of UL BWP#2. Therefore, in order to avoid erroneous indication, the terminal device needs to process the DCI according to the following method after receiving the DCI:

[0214] First step: When decoding the DCI area, determine the sizes (or bit widths) of the TPC field #2, SRI field #2, and PINL field #2 and their corresponding positions in the DCI area based on the parameters of the UL BWP #2, and consider these bits to be all 0; and Second step: Ignore these fields (TPC field #2, SRI field #2, PINL field #2).

[0215] In the example of Figure 20, since the parameters for generating DCI (UL BWP#1 parameters) and the parameters for decoding DCI (UL BWP#1 parameters) are different, the prior art generally uses the first step method to ensure that PUSCH transmission is transmitted based on the parameters of the target BWP. However, if the DCI field is considered to be "all 0", it means that the corresponding indication is an indication of multi-TRP uplink transmission, that is, it corresponds to two SRS resource indications, two PINL indications, and two TPC indications. However, in reality, the scheduling DCI is intended to indicate single-TRP uplink transmission, that is, it corresponds to one SRS resource indication, one PINL indication, and one TPC indication. Therefore, in this method, the terminal device does not regard the DCI as "all 0" and ignores the DCI field, or it can be said that the DCI field does not exist, which means that even if the DCI is decoded based on the parameters of the target BWP, the terminal device transmits PUSCH transmission based only on SRI field #1, PINL field #1 and TPC field #1, in other words, the DCI is intended to indicate PUSCH transmission of a single TRP. In this way, it is possible to avoid the terminal device from misinterpreting these fields.

[0216] The above two-step process allows the terminal device to accurately decode the DCI field after switching to the target BWP.

[0217] FIG. 21 is a diagram showing another example in which a terminal device performs BWP switching.

[0218] As shown in Figure 21, since the DCI field is generated based on the parameters of UL BWP#1 and the interpretation of the DCI field needs to be based on the parameters of UL BWP#2, in order to avoid erroneous indication, after receiving the DCI, when interpreting the DCI field based on the parameters of UL BWP#2, the UE may assume that the TPC field#2, the SRI field#2, and the PINL field#2 do not exist, and / or when interpreting the SRI field#2 and the PINL field#2 of the DCI field based on the parameters of UL BWP#2, the UE may assume that the SRS resource set#2 is not configured, in order to avoid interpreting the DCI as a DCI for scheduling an mTRP PUSCH. In this way, it is possible to ensure that the UE interprets the DCI as a DCI for scheduling an sTRP PUSCH.

[0219] In other words, in the above embodiment, since two TPC indications cannot be generated based on the parameters of UL BWP#1, when decoding the DCI based on UL BWP#2, one of the TPC fields can be ignored, so that the corresponding PUSCH can be transmitted accurately.

[0220] In other words, in the above embodiment, since two SRS resource indications cannot be generated based on the parameters of UL BWP#1, when decoding the DCI based on UL BWP#2, one of the SRS fields can be ignored, so that the corresponding PUSCH can be transmitted accurately.

[0221] In the above-described embodiment, the terminal device regarding TPC field #2 as not existing may mean that the terminal device regarding UL BWP #2 as not having a second TPC field (i.e., an additional TPC field) configured for DCI format 0_1.

[0222] Although the above description takes the example of DCI scheduling codebook-based PUSCH transmission, the present invention is not limited thereto, and the method in the embodiment of the present invention is also applicable to non-codebook-based PUSCH transmission, with the main difference being that the above DCI does not have a PINL region.

[0223] Hereinafter, take DCI scheduling PUCCH transmission as an example.

[0224] In this example, the DCI format may be DCI format 1_1 or DCI format 1_2, and the following description will be given taking DCI format 1_1 as an example.

[0225] In this example, the terminal device may be said to be capable of TDD transmission, or to be capable of unpaired spectrum.

[0226] In this example, for DCI format 1_1, the BWP before switching is UL BWP#1, for which no additional TPC field is configured to indicate closed-loop power control parameters of PUCCH; in other words, in UL BWP#1, DCI format 1_1 includes only one TPC field, which corresponds to one TPC instruction; and the BWP after switching is UL BWP#2, for which an additional TPC field (TPC field#2) is configured to indicate closed-loop power control parameters of PUCCH; in other words, in UL BWP#2, DCI format 1_1 includes two TPC fields, which correspond to two TPC instructions.

[0227] In this example, the DCI schedules PDSCH transmission, and the PDSCH has corresponding PUCCH resources for feeding back HARQ-ACK information. The CRC of the DCI may be scrambled by either the C-RNTI or the CS-RNTI. The BWP (DL BWP #2) indicated by the BWP field of the DCI is different from the active BWP (DL BWP #1). That is, the DCI indicates that the terminal device performs DL BWP switching. At this time, the terminal device receives the DCI via DL BWP #1 and performs DL BWP switching after receiving the DCI, i.e., switching from DL BWP #1 to DL BWP #2. Because of TDD transmission, switching from DL BWP #1 to DL BWP #2 also means that the UL BWP must be switched from UL BWP #1 to UL BWP #2. Therefore, the PDSCH and PUCCH transmissions scheduled by the DCI are transmitted via BWP #2, i.e., transmitted based on parameters corresponding to BWP #2.

[0228] In the above example, the DCI includes the following DCI field: TPC command for scheduled PUSCH field #1 (TPC field #1).

[0229] FIG. 22 is a diagram showing yet another example in which a terminal device performs BWP switching.

[0230] As shown in Figure 22, since the TPC field of DCI format 1_1 is generated based on the parameters of UL BWP#1 and the decoding of the DCI needs to be based on the parameters of UL BWP#2, in order to avoid erroneous indication, the terminal device can process the DCI format according to the following method after receiving it:

[0231] First step: When decoding the DCI format, determine the bit width corresponding to TPC field #2 and the corresponding position in the DCI format based on the parameters of UL BWP #2, and consider these bits to be all 0; and Second step: Ignore this field (TPC field #2).

[0232] In the example of FIG. 22 , since the parameters for generating the DCI (UL BWP#1 parameters) and the parameters for decoding the DCI (UL BWP#1 parameters) are different, the prior art generally adopts the first-step method to enable PUCCH transmission to be transmitted based on the parameters of the target BWP. However, if the DCI field (TPC field#2) is considered to be “all zeros,” this means that the corresponding instruction is an instruction for multi-TRP uplink transmission (i.e., corresponds to two TPC instructions). However, the scheduling DCI was intended to indicate single-TRP uplink transmission (i.e., corresponds to one TPC instruction). Therefore, in this method, the terminal device does not consider the DCI to be “all zeros” and ignores the DCI field, or it can be said that the DCI field does not exist. This also means that even if the DCI is decoded based on the parameters of the target BWP, the terminal device transmits PUSCH transmission based only on TPC field#1. In this way, it is possible to prevent the terminal device from misinterpreting these fields.

[0233] Through the above two-step process, the terminal device can accurately decode the DCI field after switching to the target BWP.

[0234] FIG. 23 is a diagram showing yet another example in which a terminal device performs BWP switching.

[0235] As shown in Figure 23, the field of DCI format 1_1 is generated based on the parameters of UL BWP#1, and decoding of the DCI field needs to be based on the parameters of UL BWP#2. Therefore, to avoid decoding the DCI as a DCI for scheduling a multi-TRP PUSCH, after receiving the DCI format, the terminal device can assume that TPC field#2 is absent when decoding the DCI format based on the parameters of UL BWP#2. In this way, it can be ensured that when the terminal device decodes the DCI based on the parameters of UL BWP#2, it assumes that the DCI is a DCI for scheduling a PUSCH of a single TRP (or corresponds to one TPC indication). In this way, it is possible to prevent the terminal device from misinterpreting the indication of the scheduling DCI.

[0236] In the above-described embodiment, when the terminal device considers that TPC field #2 does not exist, this may mean that the terminal device considers that a second TPC field is not configured for DCI format 1_1 in UL BWP #2 (i.e., no additional TPC field is configured in BWP #2).

[0237] According to the method of the embodiment of the present invention, it is possible to avoid erroneous uplink transmissions caused by the terminal device erroneously understanding the DCI, thereby preventing degradation of system performance.

[0238] <Example of the fourth aspect> An embodiment of the present invention provides a wireless communication device, which may be, for example, a terminal device or one or more components or assemblies installed in a terminal device.

[0239] FIG. 24 is a diagram showing a wireless communication device in an embodiment of the present invention, and the principle by which the device solves the problem is the same as the method in the embodiment of the first aspect, and for its specific implementation, reference can be made to the implementation of the method in the embodiment of the first aspect, and duplicate explanations of the same content will be omitted here.

[0240] As shown in FIG. 24, a wireless communication device 2400 in an embodiment of the present invention includes:

[0241] A receiving unit 2401: receives downlink control information (DCI), the downlink control information is used to trigger PUSCH transmission, and the downlink control information includes a first SRS resource indication and a second SRS resource indication; and A determining unit 2402: determines whether the PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication, or based on the first SRS resource indication and the second SRS resource indication, according to at least one of the following indications: the number of times the PUSCH transmission is repeated; a repetition scheme corresponding to the PUSCH transmission; and an indication of a dynamic switching region in the downlink control information, the dynamic switching region being used to indicate whether the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, or based on one of the first SRS resource indication and the second SRS resource indication.

[0242] In an embodiment of the present invention, the PUSCH transmission corresponds to PUSCH repetition Type A or PUSCH repetition Type B.

[0243] In an embodiment of the present invention, the CRC of the downlink control information is scrambled by the C-RNTI or scrambled by the CS-RNTI.

[0244] In an embodiment of the present invention, the downlink control information corresponds to DCI format 0_1 ​​or DCI format 0_2.

[0245] In some embodiments, the number of repetitions of the PUSCH transmission is indicated by the downlink control information, for example, the number of repetitions of the PUSCH transmission is determined by the number of repetitions indicated in a time domain resource allocation (TDRA) indication of the downlink control information.

[0246] In some embodiments, the duplication scheme for the PUSCH transmission is configured by radio resource control (RRC) signaling.

[0247] In some embodiments, the presence or absence of the dynamic switching region in the downlink control information is configured by radio resource control signaling.

[0248] In the above embodiment, the radio resource control signaling is used to indicate a first DCI format, and the DCI format corresponding to the downlink control information is the same as the first DCI format.

[0249] In some embodiments, the PUSCH transmission is a non-codebook based PUSCH transmission, and information about a transmission precoder and a transmission rank of the PUSCH transmission is determined based on the first SRS resource indication and / or the second SRS resource indication.

[0250] In some embodiments, the PUSCH transmission is a codebook-based PUSCH transmission, and the downlink control information further includes a first precoding information and number of layers (PINL) indication and / or a second PINL indication, and the precoding information and number of layers of the PUSCH transmission are determined based on one of the following: the first SRS resource indication, the second SRS resource indication, the first PINL indication, and the second PINL indication; the first SRS resource indication and the first PINL indication; and the second SRS resource indication and the second PINL indication.

[0251] In some embodiments, if the number of repetitions of the PUSCH transmission is 1, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

[0252] In the above embodiment, the terminal device may further ignore a DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication, and / or a PINL field corresponding to the second SRS resource indication.

[0253] In some embodiments, when the number of repetitions of the PUSCH transmission is 2 and the repetition scheme corresponding to the PUSCH transmission is sequential mapping, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

[0254] In the above embodiment, the terminal device may further ignore the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication, and / or a PINL field corresponding to the second SRS resource indication.

[0255] In some embodiments, when the number of repetitions of the PUSCH transmission is 2 and the repetition scheme corresponding to the PUSCH transmission is cyclic mapping, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

[0256] In some embodiments, if the number of repetitions of the PUSCH transmission is two, the terminal device determines that the PUSCH transmission is sent based on the first SRS resource indication and the second SRS resource indication.

[0257] In some embodiments, when the number of repetitions of the PUSCH transmission is 1 and the downlink control information includes the dynamic switching region, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

[0258] In the above embodiment, the terminal device may further ignore the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication, and / or a PINL field corresponding to the second SRS resource indication.

[0259] In the above embodiment, the terminal device may further ignore the dynamic switching region.

[0260] In some embodiments, when the number of repetitions of the PUSCH transmission is 1 and the downlink control information includes the dynamic switching region, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the indication of the dynamic switching region.

[0261] In the above embodiment, the terminal device may further ignore the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication, and / or a PINL field corresponding to the second SRS resource indication.

[0262] In some embodiments, when the number of overlaps of the PUSCH transmission is two or more, and the downlink control information includes the dynamic switching region, and the dynamic switching region indicates that the PUSCH transmission is transmitted based on one of a first SRS resource indication and a second SRS resource indication, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

[0263] In the above embodiment, the terminal device may further ignore the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication, and / or a PINL field corresponding to the second SRS resource indication.

[0264] In some embodiments, when the number of overlaps of the PUSCH transmission is two or more, and the downlink control information includes the dynamic switching region, and the dynamic switching region indicates that the PUSCH transmission is transmitted based on a first SRS resource indication and a second SRS resource indication, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

[0265] Although only the components or modules related to the present invention have been described above, the present invention is not limited thereto. The wireless communication device 2400 according to the embodiment of the present invention may further include other components or modules, and reference can be made to the related art for details of these components or modules.

[0266] 24 shows the connection relationships or signal directions between each component or module for convenience, but as will be understood by those skilled in the art, various related technologies such as bus connection may be adopted. Note that each of the above-mentioned components or modules may be realized by hardware such as a processor, memory, transmitter (device), or receiver (device), but the implementation of the present invention is not limited to these.

[0267] According to the embodiment of the present invention, the device can accurately determine whether the corresponding uplink transmission corresponds to a single-TRP transmission or a multi-TRP transmission according to the DCI indication, and then transmit the uplink transmission according to the corresponding DCI indication. In addition, the terminal device can further ignore some unused DCI areas according to the above DCI indication.

[0268] <Example of the fifth aspect> An embodiment of the present invention provides a wireless communication device, which may be, for example, a terminal device or one or more components or assemblies installed in a terminal device.

[0269] FIG. 25 illustrates an example of a wireless communication device in an embodiment of the present invention. The principle by which the device solves the problem is the same as that of the method of FIG. 8 in the embodiment of the second aspect. For specific implementation, refer to the implementation of the method of FIG. 8 in the embodiment of the first aspect. Here, redundant explanations of the same content will be omitted.

[0270] As shown in FIG. 25, a wireless communication device 2500 in an embodiment of the present invention includes:

[0271] A receiving unit 2501: receives downlink control information, and if the downlink control information is used to trigger a PUSCH or PUCCH transmission and includes a first TPC indication and a second TPC indication, the first TPC indication and the second TPC indication are respectively associated with different closed-loop power control parameter indexes; and A determining unit 2502: determines, based on the first TPC instruction and / or the second TPC instruction, closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission.

[0272] Figure 26 is a diagram showing another example of a wireless communication device in an embodiment of the present invention, and the principle by which the device solves the problem is the same as that of the method in Figure 9 of the embodiment of the second aspect, and for its specific implementation, reference can be made to the implementation of the method in Figure 9 of the embodiment of the second aspect, and duplicated explanations of the same content will be omitted here.

[0273] As shown in FIG. 26, a wireless communication device 2600 in an embodiment of the present invention includes:

[0274] A receiving unit 2601: receives downlink control information, the downlink control information being used to trigger PUSCH or PUCCH transmission, and the downlink control information including a first TPC indication and a second TPC indication; and A determining unit 2602: determines, according to the number of closed-loop power control parameter indexes corresponding to the PUSCH or PUCCH transmission, whether the closed-loop power control parameters of the PUSCH or PUCCH transmission are determined based on one of the first TPC instruction and the second TPC instruction, or based on the first TPC instruction and the second TPC instruction.

[0275] In some embodiments, the downlink control information further includes a first SRS resource indication and a second SRS resource indication, and the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is determined based on the first SRS resource indication and / or the second SRS resource indication.

[0276] In the above embodiment, when the PUSCH transmission is sent based on one of the first SRS resource indication and the second SRS resource indication, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is one.

[0277] In the above embodiment, when the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, and the closed-loop power control parameter index associated with the first SRS resource indication is the same as the closed-loop power control parameter index associated with the second SRS resource indication, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1.

[0278] In the above embodiment, when the PUSCH is transmitted based on the first SRS resource indication and the second SRS resource indication, and the closed-loop power control parameter index associated with the first SRS resource indication is different from the closed-loop power control parameter index associated with the second SRS resource indication, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is two.

[0279] In some embodiments, the downlink control information further includes a first PUCCH resource indication, which is used to indicate a PUCCH resource to be used for the PUCCH transmission, and the number of closed-loop power control parameter indexes corresponding to the PUCCH transmission is determined based on the first PUCCH resource indication.

[0280] In the above embodiment, if the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, the number of closed-loop power control parameter indexes corresponding to the PUCCH transmission is one.

[0281] Wherein, the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index means that the PUCCH resource is associated with one spatial relationship.

[0282] Alternatively, the PUCCH resource indicated by the first PUCCH resource indication being associated with one closed-loop power index refers to the PUCCH resource being associated with two spatial relationships, among which the two spatial relationships are associated with the same closed-loop power index.

[0283] In the above embodiment, if the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices, the number of closed-loop power control parameter indices corresponding to the PUCCH transmission is two.

[0284] Wherein, the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices means that the PUCCH resource is associated with two spatial relationships, in which the two spatial relationships are associated with different closed-loop power indices.

[0285] In some embodiments, when the number of closed-loop power control parameter indexes associated with the PUSCH or PUCCH transmission is 1, the terminal device determines closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on one of the first TPC indication and the second TPC indication.

[0286] In the above embodiment, when the value of the closed-loop power control parameter index corresponding to the PUSCH or PUCCH transmission is 0, the terminal device determines the closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the first TPC instruction, and when the value of the closed-loop power control parameter index corresponding to the PUSCH or PUCCH transmission is 1, the terminal device determines the closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the second TPC instruction.

[0287] In the above-mentioned embodiment, the downlink control information further includes a first SRS resource indication and a second SRS resource indication, and when the PUSCH transmission is transmitted based on the first SRS resource indication, the terminal device determines closed-loop power control parameters for transmitting the PUSCH transmission based on the first TPC indication.

[0288] In the above embodiment, the terminal device ignores DCI areas corresponding to TPC instructions that are not used to determine closed-loop power control parameters for transmitting PUSCH or PUCCH transmission in the first TPC instruction and the second TPC instruction.

[0289] In the above embodiment, the number of closed-loop power control parameter indexes associated with the PUSCH transmission being 1 means, for example, that the downlink control information further includes a first SRS resource indication and a second SRS resource indication, and the PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication.

[0290] In the above-mentioned embodiments, the number of closed-loop power control parameter indexes associated with the PUSCH transmission being 1 refers, for example, to the fact that the downlink control information further includes a first SRS resource indication and a second SRS resource indication, the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, and the closed-loop power control parameter index associated with the first SRS resource indication is the same as the closed-loop power control parameter index associated with the second SRS resource indication.

[0291] In the above-mentioned embodiment, the number of closed-loop power control parameter indexes associated with the PUCCH transmission is 1, which means, for example, that the downlink control information further includes a first PUCCH resource indication, the first PUCCH resource indication is used to indicate the PUCCH resource used for the PUCCH transmission, and the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index.

[0292] Wherein, the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index means that the PUCCH resource is associated with one spatial relationship.

[0293] Alternatively, the PUCCH resource indicated by the first PUCCH resource indication being associated with one closed-loop power index refers to the PUCCH resource being associated with two spatial relationships, among which the two spatial relationships are associated with the same closed-loop power index.

[0294] In some embodiments, when the number of closed-loop power control parameter indexes associated with the PUSCH or PUCCH transmission is two, the terminal device determines closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the first TPC indication and the second TPC indication.

[0295] In the above embodiment, the closed-loop power control parameter index corresponding to the first TPC command is 0, and the closed-loop power control parameter index corresponding to the second TPC command is 1.

[0296] In the above embodiment, the downlink control information further includes a first SRS resource indication and a second SRS resource indication, wherein a closed-loop power control parameter index corresponding to the first TPC indication is determined by a closed-loop power control parameter index associated with the first SRS resource indication, and a closed-loop power control parameter index corresponding to the second TPC indication is determined by a closed-loop power control parameter index associated with the second SRS resource indication.

[0297] In the above-mentioned embodiment, the number of closed-loop power control parameter indexes associated with the PUSCH transmission being two refers, for example, to the fact that the downlink control information further includes a first SRS resource indication and a second SRS resource indication, the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, and the closed-loop power control parameter index associated with the first SRS resource indication is different from the closed-loop power control parameter index associated with the second SRS resource indication.

[0298] In the above-mentioned embodiment, the number of closed-loop power control parameter indexes associated with the PUCCH transmission is two, which means, for example, that the downlink control information further includes a first PUCCH resource indication, which is used to indicate the PUCCH resource used for the PUCCH transmission, and the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indexes.

[0299] Wherein, the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices means that the PUCCH resource is associated with two spatial relationships, in which the two spatial relationships are associated with different closed-loop power indices.

[0300] Although only the components or modules related to the present invention have been described above, the present invention is not limited thereto. The wireless communication device 2500 / 2600 in the embodiments of the present invention may further include other components or modules, and reference can be made to the related art for specific details of these components or modules.

[0301] 25 and 26 show the connection relationships or signal directions between each component or module for convenience, but as will be understood by those skilled in the art, various related technologies such as bus connection may be adopted. Note that each of the above-mentioned components or modules may be realized by hardware such as a processor, memory, transmitter (device), or receiver (device), but the implementation of the present invention is not limited to these.

[0302] According to the device of the embodiment of the present invention, when a DCI contains two TPC instructions, how the terminal device determines the power control parameters of the corresponding uplink transmission based on the DCI is clarified, thereby avoiding erroneous instructions and improving the reliability of the system.

[0303] <Example of the sixth aspect> An embodiment of the present invention provides a wireless communication device, which may be, for example, a terminal device or one or more components or assemblies installed in a terminal device.

[0304] FIG. 27 is a diagram showing an example of a wireless communication device in an embodiment of the present invention, and the principle by which the device solves the problem is the same as that of the method of FIG. 18 in the embodiment of the third aspect, and its specific implementation can refer to the implementation of the method of FIG. 18 in the embodiment of the third aspect, and duplicated explanations of the same content will be omitted here.

[0305] As shown in FIG. 27, a wireless communication device 2700 in an embodiment of the present invention includes:

[0306] a receiving unit 2701: receiving downlink control information, the downlink control information being associated with a first DCI region, the first DCI region being at least one of the following: an SRS resource indicator region, a Precoding information and number of layers region, a TPC command for scheduled PUCCH region, and a TPC command for scheduled PUSCH region; a BWP region of the downlink control information indicating a first BWP, where the first BWP is not an active BWP, the first DCI region exists when decoding the first DCI region according to parameters of the first BWP, and the first DCI region does not exist when decoding the first DCI region according to parameters of the active BWP; and Processing unit 2702: With respect to the first BWP, the first DCI region is considered to be absent.

[0307] In some embodiments, the first DCI area exists when the first DCI area is decoded based on the parameters of the first BWP, and the first DCI area does not exist when the first DCI area is decoded based on the parameters of the active BWP, which means that the first DCI area is not set in the active BWP, and the first DCI area is set in the first BWP.

[0308] In some embodiments, the processing unit 2702 regarding the first BWP as not having the first DCI field means that, for the first BWP, the processing unit 2702 considers the first DCI field to be zero padding when decoding, and, for the first BWP, the processing unit 2702 ignores the first DCI field.

[0309] In some embodiments, when the processing unit 2702 considers the first DCI area to be non-existent with respect to the first BWP, it means that the terminal device considers the first DCI area to be not set with respect to the first BWP.

[0310] Figure 28 is a diagram showing another example of a wireless communication device in an embodiment of the present invention, and the principle by which the device solves the problem is the same as the method in Figure 19 of the embodiment of the third aspect, and for its specific implementation, reference can be made to the implementation of the method in Figure 19 of the embodiment of the third aspect, and duplicate explanations of the same content will be omitted here.

[0311] As shown in FIG. 28, a wireless communication device 2800 in an embodiment of the present invention includes:

[0312] a receiving unit 2801: receiving downlink control information, the downlink control information scheduling a PUSCH, the downlink control information being associated with a second DCI region, the second DCI region referring to at least one of an SRS resource indicator region and a Precoding information and number of layers region, a BWP region of the downlink control information indicating a first BWP, the first BWP being not an active BWP, one SRS resource set for codebook-based or non-codebook-based PUSCH transmission being configured for the active BWP, and two SRS resource sets for codebook-based or non-codebook-based PUSCH transmission being configured for the first BWP; and Processing unit 2802: For decoding the second DCI field, the processing unit 2802 considers that one SRS resource set for codebook-based or non-codebook-based PUSCH transmission is configured for the first BWP.

[0313] Although only the components or modules related to the present invention have been described above, the present invention is not limited thereto. The wireless communication device 2700 / 2800 in the embodiments of the present invention may further include other components or modules, and reference can be made to the related art for specific details of these components or modules.

[0314] 27 and 28 show the connection relationships or signal directions between each component or module for convenience, but as will be understood by those skilled in the art, various related technologies such as bus connection may be adopted. Note that each of the above-mentioned components or modules may be realized by hardware such as a processor, memory, transmitter (device), or receiver (device), but the implementation of the present invention is not limited to these.

[0315] According to the device of the embodiment of the present invention, it is possible to avoid erroneous uplink transmissions caused by the terminal device misinterpreting the DCI, and to prevent degradation of system performance.

[0316] <Example of the seventh aspect> In an embodiment of the present invention, a communication system is provided, and Fig. 29 is a diagram showing the communication system in the embodiment of the present invention. As shown in Fig. 29, the communication system 2900 includes a network device 2901 and a terminal device 2902. For convenience, Fig. 29 illustrates an example in which only one terminal device and only one network device are included, but the embodiment of the present invention is not limited thereto.

[0317] In an embodiment of the present invention, existing or future services may be transmitted between the network device 2901 and the terminal device 2902. For example, these services may include, but are not limited to, eMBB, mMTC, URLLC, and V2X communication.

[0318] In some embodiments, the network device 2901 transmits downlink control information to the terminal device 2902, and the terminal device 2902 receives the downlink control information transmitted by the network device 2901 and executes the methods described in the embodiments of the first to third aspects. Note that the present invention does not limit the content related to the network device 2901. The content related to the terminal device 2902 has already been described in detail in the embodiments of the first to third aspects, and the content thereof is incorporated herein, so a detailed description thereof will be omitted here.

[0319] In the embodiment of the present invention, a terminal device is further provided, and the terminal device may be, for example, a UE, but the present invention is not limited thereto and may also be other devices.

[0320] 30 is a diagram illustrating a terminal device according to an embodiment of the present invention. As shown in FIG. 30, the terminal device 3000 may include a processor 3001 and a memory 3002, where the memory 3002 stores data and programs and is connected to the processor 3001. Note that this diagram is merely an example, and other types of components may be used to supplement or replace the components to achieve telecommunication functions or other functions.

[0321] For example, the processor 3001 may be configured to execute a program to implement the wireless communication method described in the embodiments of any one of the first to third aspects.

[0322] As shown in Fig. 30, the terminal device 3000 may further include a communication module 3003, an input unit 3004, a display 3005, a power supply 3006, etc. The functions of these components are the same as those of the prior art, so detailed description thereof will be omitted here. Note that the terminal device 3000 does not need to include all of the components shown in Fig. 30. Furthermore, the terminal device 3000 may further include components not shown in Fig. 30, but reference can be made to the prior art for this information.

[0323] An embodiment of the present invention further provides a computer-readable program, which, when executed on a terminal device, causes a computer to perform a method according to any one of the embodiments of the first to third aspects on the terminal device.

[0324] In a further embodiment of the present invention, a storage medium is provided that stores a computer-readable program, wherein the computer-readable program causes a computer to execute a method according to any one of the embodiments of the first to third aspects on a terminal device.

[0325] The above-described apparatus and method may be realized by software or hardware, or by a combination of hardware and software. The present invention further relates to a computer-readable program as described below, which, when executed by a logic component, causes the logic component to realize the above-described apparatus or component, or to perform the above-described various methods or steps. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processing unit used in a computer. The present invention also relates to a storage medium, such as a hard disk, magnetic disk, optical hard disk, DVD, or flash memory, that stores the above-described program.

[0326] Furthermore, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be implemented as a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic component, a discrete gate or transistor logic component, a discrete hardware assembly, or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be further configured as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other configuration.

[0327] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and any modifications to the present invention that do not depart from the spirit of the present invention fall within the technical scope of the present invention.

[0328] Furthermore, the following additional notes are disclosed regarding the above-described embodiments.

[0329] (Appendix 1) 1. A wireless communication method, comprising: A terminal device receives downlink control information (DCI), the downlink control information is used to trigger PUSCH transmission, and the downlink control information includes a first SRS resource indication and a second SRS resource indication; and The terminal device determines whether the PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication, or based on the first SRS resource indication and the second SRS resource indication, according to at least one of the following indications: the number of times the PUSCH transmission is repeated; a repetition scheme corresponding to the PUSCH transmission; and indicating a dynamic switching region in the downlink control information, the dynamic switching region being used to indicate whether the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, or based on one of the first SRS resource indication and the second SRS resource indication.

[0330] (Appendix 2) 2. The method of claim 1, comprising: The method, wherein the number of times the PUSCH transmission is repeated is indicated by the downlink control information.

[0331] (Appendix 3) 10. The method of claim 2, The method, wherein the number of times the PUSCH transmission is repeated is determined by the number of times indicated in a time domain resource allocation (TDRA) indication of the downlink control information.

[0332] (Appendix 4) 2. The method of claim 1, comprising: The method, wherein the duplication scheme corresponding to the PUSCH transmission is configured by radio resource control (RRC) signaling.

[0333] (Appendix 5) 5. The method of claim 4, The method, wherein the overlapping scheme is sequential mapping or cyclic mapping.

[0334] (Appendix 6) 2. The method of claim 1, comprising: The method, wherein the presence or absence of the dynamic switching region in the downlink control information is set by radio resource control signaling.

[0335] (Appendix 7) 7. The method of claim 6, The radio resource control signaling is used to indicate a first DCI format, and the DCI format corresponding to the downlink control information is the same as the first DCI format.

[0336] (Appendix 8) 2. The method of claim 1, comprising: the PUSCH transmission is a non-codebook based PUSCH transmission, and information of a transmission precoder and a transmission rank of the PUSCH transmission are determined based on a first SRS resource indication and / or the second SRS resource indication.

[0337] (Appendix 9) 2. The method of claim 1, comprising: The PUSCH transmission is a codebook-based PUSCH transmission, and the downlink control information further includes a first precoding information and number of layers (PINL) indication and / or a second PINL indication, and the precoding information and number of layers of the PUSCH transmission are determined based on one of the following: the first SRS resource indication, the second SRS resource indication, the first PINL indication, and the second PINL indication; the first SRS resource indication and the first PINL indication; and the second SRS resource indication and the second PINL indication.

[0338] (Appendix 10) 10. The method according to any one of appendices 1-9, comprising: When the number of repetitions of the PUSCH transmission is 1, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

[0339] (Appendix 11) 11. The method of claim 10, The terminal device ignores a DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication; and / or The method wherein the second SRS resource indication is a PINL field corresponding to the second SRS resource indication.

[0340] (Appendix 12) 10. The method according to any one of appendices 1-9, comprising: A method in which, when the number of repetitions of the PUSCH transmission is 2 and the repetition scheme corresponding to the PUSCH transmission is sequential mapping, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

[0341] (Appendix 13) 13. The method of claim 12, The terminal device ignores the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication; and / or The method wherein the second SRS resource indication is a PINL field corresponding to the second SRS resource indication.

[0342] (Appendix 14) 10. The method according to any one of appendices 1-9, comprising: When the number of repetitions of the PUSCH transmission is 2 and the repetition scheme corresponding to the PUSCH transmission is cyclic mapping, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

[0343] (Appendix 15) 10. The method according to any one of appendices 1-9, comprising: When the number of overlapping times of the PUSCH transmission is 2, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

[0344] (Appendix 16) 10. The method according to any one of appendices 1-9, comprising: A method in which, when the number of repetitions of the PUSCH transmission is 1 and the downlink control information includes the dynamic switching region, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

[0345] (Appendix 17) 17. The method of claim 16, The terminal device ignores the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication; and / or The method wherein the second SRS resource indication is a PINL field corresponding to the second SRS resource indication.

[0346] (Appendix 18) 17. The method of claim 16, The terminal device ignores the dynamic switching area.

[0347] (Appendix 19) 10. The method according to any one of appendices 1-9, comprising: When the number of repetitions of the PUSCH transmission is 1 and the downlink control information includes the dynamic switching region, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the indication of the dynamic switching region.

[0348] (Appendix 20) 19. The method of claim 18, The terminal device ignores the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication; and / or The method wherein the second SRS resource indication is a PINL field corresponding to the second SRS resource indication.

[0349] (Appendix 21) 10. The method according to any one of appendices 1-9, comprising: a method in which, when the number of overlaps of the PUSCH transmission is two or more, the downlink control information includes the dynamic switching region, and the dynamic switching region indicates that the PUSCH transmission is transmitted based on one of a first SRS resource indication and a second SRS resource indication, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

[0350] (Appendix 22) 22. The method of claim 21, The terminal device ignores the DCI field corresponding to the second SRS resource indication, where the DCI field corresponding to the second SRS resource indication includes: an SRI field corresponding to the second SRS resource indication; and / or The method wherein the second SRS resource indication is a PINL field corresponding to the second SRS resource indication.

[0351] (Appendix 23) 10. The method according to any one of appendices 1-9, comprising: a method in which, when the number of overlaps of the PUSCH transmission is two or more, the downlink control information includes the dynamic switching region, and the dynamic switching region indicates that the PUSCH transmission is transmitted based on a first SRS resource indication and a second SRS resource indication, the terminal device determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

[0352] (Appendix 24) 10. The method according to any one of appendices 1-9, comprising: The method, wherein the PUSCH transmission corresponds to PUSCH repetition Type A or PUSCH repetition Type B.

[0353] (Appendix 25) 10. The method according to any one of appendices 1-9, comprising: The CRC of the downlink control information is scrambled by a C-RNTI or a CS-RNTI.

[0354] (Appendix 26) 10. The method according to any one of appendices 1-9, comprising: The method, wherein the downlink control information corresponds to DCI format 0_1 ​​or DCI format 0_2.

[0355] (Appendix 27) 1. A wireless communication method, comprising: When a terminal device receives downlink control information, the downlink control information is used to trigger PUSCH or PUCCH transmission, and the downlink control information includes a first TPC indication and a second TPC indication, the first TPC indication and the second TPC indication are respectively associated with different closed-loop power control parameter indexes; and The method includes the terminal device determining, based on the first TPC instruction and / or the second TPC instruction, closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission.

[0356] (Appendix 28) 1. A wireless communication method, comprising: A terminal device receives downlink control information, the downlink control information is used to trigger PUSCH or PUCCH transmission, and the downlink control information includes a first TPC indication and a second TPC indication; and The method includes the terminal device determining, based on the number of closed-loop power control parameter indexes corresponding to the PUSCH or PUCCH transmission, whether the closed-loop power control parameters of the PUSCH or PUCCH transmission are determined based on one of the first TPC instruction and the second TPC instruction, or whether the closed-loop power control parameters are determined based on the first TPC instruction and the second TPC instruction.

[0357] (Appendix 29) 29. The method of claim 28, the downlink control information further includes a first SRS resource indication and a second SRS resource indication, and the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is determined based on the first SRS resource indication and / or the second SRS resource indication.

[0358] (Appendix 30) 29. The method of claim 29, The method, wherein when the PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1.

[0359] (Appendix 31) 29. The method of claim 29, wherein when the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, and a closed-loop power control parameter index associated with the first SRS resource indication and a closed-loop power control parameter index associated with the second SRS resource indication are the same, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1.

[0360] (Appendix 32) 29. The method of claim 29, wherein, when the PUSCH is transmitted based on the first SRS resource indication and the second SRS resource indication, and a closed-loop power control parameter index associated with the first SRS resource indication and a closed-loop power control parameter index associated with the second SRS resource indication are different, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is two.

[0361] (Appendix 33) 29. The method of claim 28, The method, wherein the downlink control information further includes a first PUCCH resource indication, the first PUCCH resource indication is used to indicate a PUCCH resource to be used for the PUCCH transmission, and the number of closed-loop power control parameter indexes corresponding to the PUCCH transmission is determined based on the first PUCCH resource indication.

[0362] (Appendix 34) 34. The method of claim 33, The method, wherein if the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, the number of closed-loop power control parameter indexes corresponding to the PUCCH transmission is one.

[0363] (Appendix 35) 35. The method of claim 34, A method in which the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, which means that the PUCCH resource is associated with one spatial relationship.

[0364] (Appendix 36) 35. The method of claim 34, A method in which the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, meaning that the PUCCH resource is associated with two spatial relationships, among which the two spatial relationships are associated with the same closed-loop power index.

[0365] (Appendix 37) 34. The method of claim 33, The method, wherein when the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices, the number of closed-loop power control parameter indices corresponding to the PUCCH transmission is two.

[0366] (Appendix 38) 38. The method of claim 37, A method in which the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices, meaning that the PUCCH resource is associated with two spatial relationships, among which the two spatial relationships are associated with different closed-loop power indices.

[0367] (Appendix 39) 29. The method of claim 28, When the number of closed-loop power control parameter indexes associated with the PUSCH or PUCCH transmission is 1, the terminal device determines closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on one of the first TPC indication and the second TPC indication.

[0368] (Appendix 40) 39. The method of claim 39, If the value of a closed-loop power control parameter index corresponding to the PUSCH or PUCCH transmission is 0, the terminal device determines a closed-loop power control parameter for transmitting the PUSCH or PUCCH transmission based on the first TPC indication; When the value of a closed-loop power control parameter index corresponding to the PUSCH or PUCCH transmission is 1, the terminal device determines closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the second TPC instruction.

[0369] (Appendix 41) 39. The method of claim 39, the downlink control information further includes a first SRS resource indication and a second SRS resource indication, and when the PUSCH transmission is transmitted based on the first SRS resource indication, the terminal device determines closed-loop power control parameters for transmitting the PUSCH transmission based on the first TPC indication.

[0370] (Appendix 42) 39. The method of claim 39, The terminal device ignores DCI areas corresponding to TPC instructions that are not used to determine closed-loop power control parameters for transmitting a PUSCH or PUCCH transmission in the first TPC instruction and the second TPC instruction.

[0371] (Appendix 43) 39. The method of claim 39, The number of closed-loop power control parameter indexes associated with the PUSCH transmission is 1. The method, wherein the downlink control information further includes a first SRS resource indication and a second SRS resource indication, wherein the PUSCH transmission is transmitted based on one of the first SRS resource indication and the second SRS resource indication.

[0372] (Appendix 44) 39. The method of claim 39, The number of closed-loop power control parameter indexes associated with the PUSCH transmission is 1. the downlink control information further includes a first SRS resource indication and a second SRS resource indication, in which the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, and a closed-loop power control parameter index associated with the first SRS resource indication and a closed-loop power control parameter index associated with the second SRS resource indication are the same.

[0373] (Appendix 45) 39. The method of claim 39, The number of closed-loop power control parameter indexes associated with the PUCCH transmission is 1. The method, wherein the downlink control information further includes a first PUCCH resource indication, the first PUCCH resource indication is used to indicate a PUCCH resource to be used for the PUCCH transmission, and the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index.

[0374] (Appendix 46) 46. ​​The method of claim 45, A method in which the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, which means that the PUCCH resource is associated with one spatial relationship.

[0375] (Appendix 47) 46. ​​The method of claim 45, A method in which the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, meaning that the PUCCH resource is associated with two spatial relationships, among which the two spatial relationships are associated with the same closed-loop power index.

[0376] (Appendix 48) 29. The method of claim 28, When the number of closed-loop power control parameter indexes associated with the PUSCH or PUCCH transmission is 2, the terminal device determines closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the first TPC indication and the second TPC indication.

[0377] (Appendix 49) 49. The method of claim 48, a closed-loop power control parameter index corresponding to the first TPC instruction is 0; The method wherein the closed-loop power control parameter index corresponding to the second TPC instruction is 1.

[0378] (Appendix 50) 49. The method of claim 48, the downlink control information further includes a first SRS resource indication and a second SRS resource indication; a closed-loop power control parameter index corresponding to the first TPC instruction is determined by a closed-loop power control parameter index associated with the first SRS resource instruction; The method, wherein a closed-loop power control parameter index corresponding to the second TPC indication is determined by a closed-loop power control parameter index associated with the second SRS resource indication.

[0379] (Appendix 51) 49. The method of claim 48, The number of closed-loop power control parameter indexes associated with the PUSCH transmission is 2. the downlink control information further includes a first SRS resource indication and a second SRS resource indication, in which the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication, and a closed-loop power control parameter index associated with the first SRS resource indication and a closed-loop power control parameter index associated with the second SRS resource indication are different.

[0380] (Appendix 52) 49. The method of claim 48, The number of closed-loop power control parameter indexes associated with the PUCCH transmission is 2. The method, wherein the downlink control information further includes a first PUCCH resource indication, which is used to indicate a PUCCH resource to be used for the PUCCH transmission, and wherein the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices.

[0381] (Appendix 53) 53. The method of claim 52, comprising: A method in which the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indices, meaning that the PUCCH resource is associated with two spatial relationships, among which the two spatial relationships are associated with different closed-loop power indices.

[0382] (Appendix 54) 1. A wireless communication method, comprising: A terminal device receives downlink control information, the downlink control information is associated with a first DCI region, the first DCI region refers to at least one of the following: an SRS resource indicator region, a Precoding information and number of layers region, a TPC command for scheduled PUCCH region, and a TPC command for scheduled PUSCH region, the BWP region of the downlink control information indicates a first BWP, where the first BWP is not an active BWP, the first DCI region exists when decoding the first DCI region based on parameters of the first BWP, and the first DCI region does not exist when decoding the first DCI region based on parameters of the active BWP; and The method includes the terminal device assuming that the first DCI area does not exist for the first BWP.

[0383] (Appendix 55) 55. The method of claim 54, The first DCI area exists when the first DCI area is decoded based on the parameters of the first BWP, and the first DCI area does not exist when the first DCI area is decoded based on the parameters of the active BWP. The method, wherein the first DCI area is not set in the active BWP and the first DCI area is set in the first BWP.

[0384] (Appendix 56) 55. The method of claim 54, The terminal device considers that the first DCI area does not exist for the first BWP if: A method in which, for a first BWP, the terminal device considers the first DCI field to be zero padding when decoding the first DCI field, and for the first BWP, the terminal device ignores the first DCI field.

[0385] (Appendix 57) 55. The method of claim 54, The terminal device considers that the first DCI area does not exist for the first BWP if: A method in which, for a first BWP, the terminal device considers the first DCI area to be not set.

[0386] (Appendix 58) 1. A wireless communication method, comprising: A terminal device receives downlink control information, the downlink control information scheduling a PUSCH, the downlink control information associated with a second DCI region, the second DCI region indicating at least one of an SRS resource indicator region and a Precoding information and number of layers region, a BWP region of the downlink control information indicating a first BWP, the first BWP not being an active BWP, one SRS resource set for codebook-based or non-codebook-based PUSCH transmission configured for the active BWP, and two SRS resource sets for codebook-based or non-codebook-based PUSCH transmission configured for the first BWP; and The method includes, for decoding the second DCI area, the terminal device considering that one SRS resource set for codebook-based or non-codebook-based PUSCH transmission is configured for the first BWP.

[0387] (Appendix 59) A terminal device including a storage unit and a processor, The storage device stores a computer program, A terminal device, wherein the processor is configured to execute the computer program to implement the method according to any one of Supplementary Notes 1 to 58.

[0388] (Appendix 60) A communication system including a network device and a terminal device, the network device is configured to transmit downlink control information to the terminal device; 59. A communication system, wherein the terminal device is configured to perform a method according to any one of Supplementary Notes 1 to 58.

Claims

1. A wireless communication device, a receiver and a processor; The receiver receives downlink control information, the downlink control information is used to trigger PUCCH transmission, and the downlink control information includes a first TPC instruction and a second TPC instruction; The processor determines, based on a number of closed-loop power control parameter indexes corresponding to the PUCCH transmission, whether the closed-loop power control parameters of the PUCCH transmission are determined based on one of the first TPC instruction and the second TPC instruction, or whether the closed-loop power control parameters of the PUCCH transmission are determined based on the first TPC instruction and the second TPC instruction.

2. 2. The wireless communication device according to claim 1, The PUCCH transmission is scheduled by downlink control information, the downlink control information corresponds to DCI format 1_1 or DCI format 1_2, and the PUCCH transmission is associated with one or two closed-loop power control parameter indexes.

3. 2. The wireless communication device according to claim 1, When a number of closed-loop power control parameter indexes associated with the PUCCH transmission is 1, the processor determines closed-loop power control parameters for transmitting the PUCCH transmission based on one of the first TPC instruction and the second TPC instruction.

4. 4. The wireless communication device according to claim 3, If a closed-loop power control parameter index corresponding to the PUCCH transmission is 0, the processor determines closed-loop power control parameters for transmitting the PUCCH transmission based on the first TPC instruction; If the closed-loop power control parameter index corresponding to the PUCCH transmission is 1, the processor determines the closed-loop power control parameters for transmitting the PUCCH transmission based on the second TPC instruction.

5. 4. The wireless communication device according to claim 3, The processor ignores a DCI field corresponding to one of a first TPC indication and a second TPC indication that is not used to determine closed-loop power control parameters for transmission of the PUCCH transmission.

6. 2. The wireless communication device according to claim 1, When the number of closed-loop power control parameter indexes associated with a PUSCH or PUCCH transmission is two, the processor determines closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the first TPC instruction and the second TPC instruction.

7. 7. The wireless communication device according to claim 6, A closed loop power control parameter index corresponding to the first TPC instruction is 0, and a closed loop power control parameter index corresponding to the second TPC instruction is 1.

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