Wireless communication method, device and system

Abstract

In an embodiment of the present invention, a wireless communication method, an apparatus and a system are provided, in which a terminal device receives downlink control information, the downlink control information is used to trigger a PUSCH transmission, 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 according to one of the first SRS resource indication and the second SRS resource indication, or the first SRS resource indication and the second SRS resource indication, according to at least one of the following indications: an overlapping number of the PUSCH transmission; an overlapping manner corresponding to the PUSCH transmission; and an indication of a dynamic switching region in the downlink control information, the dynamic switching region is used to indicate whether the PUSCH transmission is transmitted according to the first SRS resource indication and the second SRS resource indication, or the first SRS resource indication and the second SRS resource indication.

Description

[Technical field]

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

[0002] To meet the high reliability and low latency needs of URLLC (Ultra-Relaible and Low Latency Communication) services, NR Rel-16 (New Radio Release 16) introduces a corresponding uplink data transmission mechanism, which can support more flexible uplink data transmission, thus reducing 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 thereof by those skilled in the art, and these technical solutions are described in the background art of the present invention, and therefore 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 have found that since NR (New Radio) can support a center transmission frequency of up to 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 very detrimental to uplink transmission. The reason is that according to the existing beam failure recovery mechanism, it takes tens of milliseconds at the earliest to recover the communication link, but the communication latency requirement of URLLC is generally much smaller than tens of milliseconds.

[0005] Therefore, the high frequency uplink is susceptible to interference and the channel may deteriorate quickly. The time required by the existing recovery mechanism is too long to meet the latency requirements of URLLC service. To reduce the impact of interference on uplink data transmission, one possible method is to transmit uplink data in the manner of spatial diversity. In other words, the same data at the terminal device can reach the network device at different times via different airspace paths (i.e., via different transmission and reception points (TRPs)). In this way, when interference occurs on one path, the other paths can still continue to operate, ensuring low latency and high reliability of uplink data.

[0006] In order to support the above-mentioned multi-TRP (mTRP) uplink transmission, one method is to increase the additional range of 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 range increase. 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 BWP (Bandwidth Part), 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 consume a large amount of the blind detection capability of the terminal device to the control channel.

[0007] To solve the above problem, one possible scheme is that the network device semi-statically configures one DCI format, which corresponds to one size, and which 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-mentioned 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 range increase, or, it may be said, at present, there is no method 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 BWP switching 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 areas set for the two BWPs are different, so it is also a problem that needs to be solved how to decode the corresponding DCI areas.

[0011] To address at least one of the problems set forth above or other similar problems, embodiments of the present invention provide wireless communication methods, apparatus 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 for determining, 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 is included for determining, based on a number of closed-loop power control parameter indexes corresponding to the PUSCH or PUCCH transmission, whether a closed-loop power control parameter of the PUSCH or PUCCH transmission is determined based on one of the first TPC indication and the second TPC indication, or is determined based on the first TPC indication and the second TPC indication.

[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 is included. For decoding the second DCI region, the processing unit considers that one SRS resource set for codebook-based or non-codebook-based PUSCH transmission is configured for the first BWP. Effect of the Invention

[0015] One of the advantageous effects of the embodiment of the present invention is as follows: according to the embodiment 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 the corresponding indication according to the received downlink control information, and the terminal device can further ignore some unused DCI areas according to the indication of the above-mentioned downlink control information.

[0016] Specific embodiments of the present invention are disclosed in detail below with reference to the following description and drawings, which show how the principles of the present invention may be employed, but are not limited in scope to these embodiments, which may include various changes, modifications, and alternatives within the scope of the appended claims.

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

[0018] It should be noted that terms such as "comprise / have" when used in this specification refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief description 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 the 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 the embodiments of the present invention, and together with the written description, are used to explain the principles of the present invention. Also, it is obvious that the drawings described below are only for illustrating some embodiments of the present invention, and a person skilled in the art can derive other drawings based on these drawings without creative labor. [Figure 1] FIG. 2 is a diagram illustrating a wireless communication method according to an embodiment of the present invention. [Diagram 2] FIG. 1 illustrates a codebook-based PUSCH transmission scheduled by DCI (part 1). [Diagram 3] FIG. 2 illustrates a second diagram of codebook-based PUSCH transmission scheduled by DCI. [Figure 4] FIG. 3 is a diagram (part 3) showing codebook-based PUSCH transmission scheduled by DCI. [Diagram 5]FIG. 4 is a diagram showing codebook-based PUSCH transmission scheduled by DCI (part 4). [Figure 6] FIG. 5 is a diagram (part 5) showing 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] FIG. 1 is a diagram illustrating an example of a wireless communication method in an embodiment of the present invention. [Figure 9] FIG. 11 is a diagram illustrating another example of a wireless communication method in an embodiment of the present invention. [Figure 10] FIG. 1 shows three examples (part 1) of PUSCH transmission scheduled by DCI. [Figure 11] FIG. 13 is a diagram showing three examples (part 2) of PUSCH transmission scheduled by DCI. [Figure 12] FIG. 13 is a diagram showing three examples (part 3) of PUSCH transmission scheduled by DCI. [Figure 13] A diagram showing five examples (part 1) of PUCCH transmission scheduled by DCI. [Figure 14] A diagram showing five examples (part 2) of PUCCH transmission scheduled by DCI. [Figure 15] A diagram showing five examples (part 3) of PUCCH transmission scheduled by DCI. [Figure 16] FIG. 4 is a diagram showing five examples (part 4) of PUCCH transmission scheduled by DCI. [Figure 17] FIG. 5 is a diagram showing five examples (part 5) of PUCCH transmission scheduled by DCI. [Figure 18] FIG. 1 is a diagram illustrating an example of a wireless communication method in an embodiment of the present invention. [Figure 19] FIG. 11 is a diagram illustrating another example of a wireless communication method in an embodiment of the present invention. [Figure 20]A figure showing four examples (part 1) of a terminal device performing BWP switching. [Figure 21] A figure showing four examples (part 2) of a terminal device performing BWP switching. [Figure 22] FIG. 11 is a diagram showing four examples (part 3) of a terminal device performing BWP switching. [Diagram 23] FIG. 13 is a diagram showing four examples (part 4) of a terminal device performing BWP switching. [Figure 24] FIG. 1 is a diagram illustrating an example of a wireless communication device according to an embodiment of the present invention. [Diagram 25] FIG. 11 is a diagram illustrating another example of a wireless communication device according to an embodiment of the present invention. [Figure 26] FIG. 11 is a diagram showing yet another example of a wireless communication device according to an embodiment of the present invention. [Figure 27] FIG. 13 is a diagram illustrating another example of a wireless communication device according to an embodiment of the present invention. [Figure 28] FIG. 13 is a diagram illustrating another example of a wireless communication device according to an embodiment of the present invention. [Figure 29] FIG. 1 illustrates a communication system according to an embodiment of the present invention. [Diagram 30] FIG. 2 is a diagram illustrating a terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] The above and other features of the present invention will become apparent from the following detailed description and the accompanying drawings, in which: While the specification and drawings disclose certain embodiments of the present invention, these are illustrative of 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 an embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0023] Additionally, communications between devices in the communications system may be performed according to any stage of communications protocol, including, but not limited to, the following communications protocols: 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 embodiment 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, the 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] Among them, the base station may include, but is not limited to, the following: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may further include RRH (Remote Radio Head), RRU (Remote Radio Unit), relay, or low power node (e.g., femto, pico, etc.). In addition, the term "base station" may include some or all of the functions thereof, and each base station can provide communication coverage for a specific geographical 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 the 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 called 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, the following: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine type communication devices, laptop computers, cordless telephones, smartphones, smart watches, digital cameras, etc.

[0028] Additionally, 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, in scenarios such as the Internet of Things (IoT), the user equipment may also be a monitoring or measuring device or equipment, 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, in which: It should be noted that these embodiments are merely illustrative and are not intended to limit the present invention.

[0031] <Example of the first aspect> In an embodiment of the present invention, a wireless communication method is provided, and will be described 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 a 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, although the above-mentioned FIG. 1 is for illustrative purposes of the embodiment of the present invention, the present invention is not limited thereto. For example, some operations (steps) can 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-mentioned contents.

[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 transmitted based on according to at least one of the following three: the number of overlaps of the PUSCH transmission, the overlapping manner corresponding to the PUSCH transmission, and an indication of a certain DCI region (called dynamic switching region, but the present invention is not limited by the name) in the DCI, so that the DCI indication can accurately determine whether the corresponding uplink transmission corresponds to single-TRP transmission or multi-TRP transmission, and transmit 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.

[0036] In the embodiment 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. However, 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 by the CS-RNTI, but the present invention is not limited thereto. Note that, for specific scrambling methods, refer to the related art, and detailed description thereof will be omitted here.

[0038] In the above embodiment, the DCI format of the downlink control information 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 the related content of the DCI format, refer to the related art, and the detailed description thereof will be omitted here.

[0039] In the above embodiment, PUSCH transmission may correspond to PUSCH repetition Type A or PUSCH repetition Type B, but the present invention is not limited thereto. For the definitions of PUSCH repetition Type A and PUSCH repetition Type B, 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 the information of the transmission precoder and the information of the transmission rank of the PUSCH transmission may be determined based on the above-mentioned first SRS resource indication and / or the above-mentioned second SRS resource indication. That is, for the non-codebook based PUSCH transmission, the terminal device can determine the transmission precoder and the transmission rank used for transmitting the above-mentioned PUSCH transmission based on the above-mentioned first SRS resource indication and / or the above-mentioned second SRS resource indication. For the related content of the transmission precoder and the transmission rank, please refer to the related art, and the detailed description thereof will be omitted here.

[0041] In the above embodiment, the PUSCH transmission may be a codebook-based PUSCH transmission, and the above-mentioned downlink control information may further include a first PINL (Precoding information and number of layers) indication and / or a second PINL indication, and the precoding information of the above-mentioned PUSCH transmission may be determined according to a first SRS resource indication, a second SRS resource indication, a first PINL indication and a second PINL indication, may be determined according to a first SRS resource indication and the first PINL indication, and may further be determined according to a second SRS resource indication and a second PINL indication. That is, for codebook-based PUSCH transmission, the terminal device can determine the precoding information and the number of layers used for transmitting the PUSCH transmission according to one of the above three methods, and the related content of the precoding information and the number of layers may refer to the related art, and detailed description 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 in SRS source set#1 for transmitting the corresponding PUSCH transmission, and 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 in SRS source set#2 for transmitting the corresponding PUSCH transmission, and 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 above-mentioned 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. In addition, the first PINL indication may be referred to as TPMI (Transmission precoding indicator) and RI (Rank indicator). For the related contents of TPMI and RI, please refer to the related art, and detailed description 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 above-mentioned 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. In addition, the second PINL indication may be referred to as TPMI (Transmission precoding indicator) and RI (Rank indicator). For the related contents of TPMI and RI, please refer to the related art, and detailed description thereof will be omitted here.

[0048] In some embodiments, the repetition number of the PUSCH transmission is indicated by the downlink control information, for example, the repetition number 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, for PUSCH transmission of PUSCH repetition type A, the PUSCH transmission corresponds to one repetition, and for PUSCH transmission of PUSCH repetition type B, the PUSCH transmission corresponds to one non-imal repetition.

[0050] Also, 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, it corresponds to one set of SRI, TPMI, RI instructions, and for non-codebook based PUSCH transmission, it corresponds 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, it corresponds to another set of SRI, TPMI, RI instructions, and for non-codebook based PUSCH transmission, it corresponds to another SRI instruction, and the subsequent transmission opportunities are rotated 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, 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, RI instructions, and for non-codebook based PUSCH transmission, it corresponds to another SRI instruction, and the subsequent transmission opportunities are cyclical 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 above-mentioned dynamic switching region exists in a certain (specific) DCI format, for example, the RRC signaling is used to indicate whether the above-mentioned dynamic switching region exists in DCI format 0_1, and for example, the RRC signaling is used to indicate whether the above-mentioned dynamic switching region exists in DCI format 0_2. If the DCI format corresponding to the above-mentioned downlink control information is DCI format 0_1 ​​and the terminal device receives RRC signaling indicating that the above-mentioned dynamic switching region exists in DCI format 0_1, the terminal device considers the downlink control information to include the above-mentioned dynamic switching region. Alternatively, it may be stated as follows, that is, if the RRC signaling indicates that the above-mentioned dynamic switching region exists in DCI format 0_1 ​​and the format corresponding to the above-mentioned downlink control information is also DCI format 0_1, the terminal device considers the downlink control information to include the above-mentioned dynamic switching region.

[0056] In an embodiment 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 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 according to an overlapping number of a PUSCH transmission includes: when the overlapping number of a PUSCH transmission is 1, the terminal device determines that the PUSCH transmission is transmitted according to a first SRS resource indication, so that when the overlapping number of a PUSCH transmission is 1, the terminal device can transmit a PUSCH transmission according to the first SRS resource indication.

[0058] 2 is a diagram illustrating an example of a codebook-based PUSCH transmission scheduled by DCI. In the example of FIG. 2, the number of repetitions of the PUSCH transmission is 1, and the terminal device transmits the PUSCH transmission according to 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, namely, SRI field #1, SRI field #2, PINL field #1 and PINL field #2, in which 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 repetition number of PUSCH transmission is 1, that is, it 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 layer number 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, or it may be said that the terminal device does not transmit the corresponding PUSCH transmission according to the SRI, TPMI, and RI corresponding to the SRI field #2 and the PINL field #2. Since 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 the PUSCH transmission of the 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 according to an overlapping number of the PUSCH transmission and an overlapping manner corresponding to the PUSCH transmission includes: when the overlapping number of the PUSCH transmission is 2 and the overlapping manner corresponding to the PUSCH transmission is sequential mapping, the terminal device determines that the PUSCH transmission is transmitted according to a first SRS resource indication, so that the terminal device can transmit the PUSCH transmission according to the first SRS resource indication when the overlapping number of the PUSCH transmission is 2 and the overlapping manner corresponding to the PUSCH transmission is sequential mapping.

[0063] Figure 3 illustrates another example of codebook-based PUSCH transmission scheduled by DCI. In the example of Figure 3, the number of overlaps of PUSCH transmission is 2, the overlapping manner is sequential mapping, and the terminal device transmits PUSCH transmission according to 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, namely, SRI field #1, SRI field #2, PINL field #1 and PINL field #2, in which 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 the RRC signaling indicates that the duplication scheme used for PUSCH transmission is sequential mapping. In addition, the meaning of sequential mapping has been already explained, and the detailed explanation thereof is omitted here.

[0066] In the example of Figure 3, the overlapping number of PUSCH transmission is 2, that is, corresponding to two transmission opportunities. Because the overlapping manner of the PUSCH transmission is sequential mapping, the two transmission opportunities before the PUSCH transmission correspond to the same TRP, that is, corresponding to a set of SRI, TPMI, RI indications, in this case, the PUSCH transmission corresponds to a single TRP transmission, and the terminal device transmits 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 layer number and its 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.

[0067] In the above embodiment, the terminal device ignores the DCI area corresponding to the second SRS resource indication, where the DCI area corresponding to the second SRS resource indication includes the SRI area (SRI field #2) corresponding to the second SRS resource indication and / or the PINL area (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 said that the terminal device does not transmit the corresponding PUSCH transmission according to the SRI, TPMI, and RI corresponding to the SRI field #2 and the PINL field #2. Since the SRI area corresponding to the second SRS resource indication and the PINL area corresponding to the second SRS resource indication are both used to transmit the PUSCH transmission of the multi-TRP, and the PUSCH transmission scheduled by the above-mentioned DCI is a single-TRP transmission, the terminal device does not need to consider the above-mentioned SRI area and the above-mentioned PINL area.

[0068] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission according to an overlapping number of PUSCH transmissions and an overlapping manner corresponding to the PUSCH transmissions includes: determining that the PUSCH transmission is transmitted according to the first SRS resource indication and the second SRS resource indication when the overlapping number of PUSCH transmissions is two and the overlapping manner corresponding to the PUSCH transmissions is cyclic mapping, so that the terminal device can transmit the PUSCH transmission according to the first SRS resource indication and the second SRS resource indication when the overlapping number of PUSCH transmissions is two and the overlapping manner corresponding to the PUSCH transmissions is cyclic mapping.

[0069] Figure 4 illustrates another example of codebook-based PUSCH transmission scheduled by DCI. In the example of Figure 4, the number of overlaps of PUSCH transmission is 2, the overlapping manner is cyclic mapping, and the terminal device transmits PUSCH transmission according to 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, namely, SRI field #1, SRI field #2, PINL field #1 and PINL field #2, in which 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 method 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 method used for PUSCH transmission is cyclic mapping. Note that, the meaning of cyclic mapping has already been explained, and the detailed explanation thereof is omitted here.

[0072] In the example of Figure 4, the overlapping number of PUSCH transmission is 2, that is, corresponding to two transmission opportunities. Because the overlapping 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, RI indications, in this case, the PUSCH transmission corresponds to multi-TRP transmission, and the terminal device transmits 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 the SRS source set #1 according to the indication of the SRI field #1, and determines the layer number and corresponding precoding information corresponding to the selected SRS resource according to the indication of the PINL field #1, and also selects an SRS resource from the SRS source set #2 according to the indication of the SRI field #2, and determines the layer number and corresponding precoding information corresponding to the selected SRS resource according to the indication of the PINL field #2. The above-mentioned SRS resource corresponds to the transmission of 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, so that the terminal device can transmit a 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] Figure 5 illustrates another example of codebook-based PUSCH transmission scheduled by DCI. In the example of Figure 5, the number of overlaps of PUSCH transmission is 2, and the terminal device transmits PUSCH transmission according to 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, namely, SRI field #1, SRI field #2, PINL field #1 and PINL field #2, in which 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 overlapping number of PUSCH transmission is 2, that is, corresponds to two transmission opportunities, and the two transmission opportunities correspond to different TRPs, that is, respectively correspond to independent SRI, TPMI, RI indications, in this case, the PUSCH transmission corresponds to multi-TRP transmission, and the terminal device transmits PUSCH transmission according to a first SRS resource indication and a 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 layer number and corresponding precoding information corresponding to the selected SRS resource according to the indication of PINL field #1, and also selects an SRS resource from SRS source set #2 according to the indication of SRI field #2, and determines the layer number and corresponding precoding information corresponding to the selected SRS resource according to the indication of PINL field #2. The above-mentioned SRS resource corresponds to the transmission of PUSCH transmission.

[0077] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission according to an overlapping number of PUSCH transmissions and a dynamic switching region included in downlink control information includes: when the overlapping 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, so that the terminal device can transmit a PUSCH transmission based on the first SRS resource indication when the overlapping number of PUSCH transmissions is 1 and DCI includes the above-mentioned dynamic switching region.

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

[0079] Figure 6 illustrates another example of codebook-based PUSCH transmission scheduled by DCI. In the example of Figure 6, the DCI further includes a dynamic switching region (denoted as DS field in Figure 6), the overlapping number of PUSCH transmission is 1, and the terminal device transmits PUSCH transmission according to 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, in which 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 DS field is the aforementioned dynamic switching field. Note that the relevant contents of these DCI fields have 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 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, where the transmission based on one of the first SRS resource indication and the second SRS resource indication means the transmission based on one set of {SRI, TPMI, RI}, and the transmission based on the first SRS resource indication and the second SRS resource indication means the transmission based on two sets of {SRI, TPMI, RI}. Alternatively, it may be said that the dynamic switching region is used to indicate whether the USCH 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 layer number 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 ignores the DCI area corresponding to the second SRS resource indication, where the DCI area corresponding to the second SRS resource indication includes the SRI area corresponding to the second SRS resource indication and / or the PINL area corresponding to the second SRS resource indication. That is, the terminal ignores the SRI field #2 and the PINL field #2, or it can be said that the terminal does not transmit the corresponding PUSCH transmission according to the SRI, TPMI, and RI corresponding to the SRI field #2 and the PINL field #2. Since the SRI area corresponding to the second SRS resource indication and the PINL area corresponding to the second SRS resource indication are both used to transmit the PUSCH transmission of the multi-TRP, and the PUSCH transmission scheduled by the above DCI is a single-TRP transmission, the terminal does not need to consider the above SRI area and the above PINL area.

[0084] In the above embodiment, the PUSCH transmission has an overlapping 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 assumes that the dynamic switching region necessarily indicates 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 an overlapping number of PUSCH transmissions and a dynamic switching region included in downlink control information includes, when the overlapping number of PUSCH transmissions is equal to or greater than two, 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, so that, when the dynamic switching region clearly indicates which SRS resource indication the PUSCH transmission is transmitted based on, the terminal device can transmit the PUSCH transmission based on the SRS resource indication indicated by the dynamic switching region.

[0086] Figure 7 is a diagram showing another example of codebook-based PUSCH transmission scheduled by DCI. In the example of Figure 7, the DCI further includes a dynamic switching region (denoted as DS field in Figure 7), the overlapping number of PUSCH transmission is 2, 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, in which 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 DS field is the aforementioned dynamic switching field. Note that the relevant contents of these DCI fields have 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, corresponds to two transmission opportunities, and the dynamic switching region indicates that the PUSCH transmission is transmitted according to 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 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 layer number 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 ignores the DCI area corresponding to the second SRS resource indication, where the DCI area corresponding to the second SRS resource indication includes the SRI area corresponding to the second SRS resource indication and / or the PINL area corresponding to the second SRS resource indication. That is, the terminal ignores the SRI field #2 and the PINL field #2, or it can be said that the terminal does not transmit the corresponding PUSCH transmission according to the SRI, TPMI, and RI corresponding to the SRI field #2 and the PINL field #2. Since the SRI area corresponding to the second SRS resource indication and the PINL area corresponding to the second SRS resource indication are both used to transmit the PUSCH transmission of the multi-TRP, and the PUSCH transmission scheduled by the above DCI is a single-TRP transmission, the terminal does not need to consider the above SRI area and the above PINL area.

[0090] In some embodiments, determining an SRS resource indication associated with the PUSCH transmission based on a number of overlaps of the PUSCH transmission and a dynamic switching region included in downlink control information includes, when a number of overlaps of the PUSCH transmission is greater than or equal to two, 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 the 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 two SRS resource indications.

[0092] As described above, the method according to the embodiment of the present invention has been described with reference to Figures 2 to 7 by taking the example of PUSCH transmission being codebook-based PUSCH transmission. If the PUSCH transmission is non-codebook-based PUSCH transmission, it is similar to 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 transmitted based on according to at least one of the following three factors: the number of times the PUSCH transmission is duplicated, the duplication manner corresponding to the PUSCH transmission, and an indication of a certain DCI region (called dynamic switching region, but the present invention does not limit the name) in the DCI, so that the DCI indication can accurately determine whether the corresponding uplink transmission corresponds to single-TRP transmission or multi-TRP transmission, and transmit 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 will be described from the terminal device side.

[0095] 8 is a diagram showing an example of a wireless communication method in 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 a 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, based on the first TPC instruction and / or the second TPC instruction, closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission.

[0097] Note that, although the above-mentioned FIG. 8 is for illustrative purposes, the present invention is not limited thereto. For example, some operations (steps) can 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-mentioned contents.

[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 the terminal device performs a single-TRP transmission, the terminal device can determine the closed-loop power control parameters for transmitting PUSCH or PUCCH transmission based on one of the TPC instructions, and when the terminal device performs a multi-TRP transmission, the terminal device can determine the closed-loop power control parameters used for transmitting 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 a 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 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 of the PUSCH or PUCCH transmission are determined according to 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.

[0101] Note that, although the above-mentioned FIG. 9 is for illustrative purposes of the embodiment of the present invention, the present invention is not limited thereto. For example, some operations (steps) can 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-mentioned contents.

[0102] According to the method of the embodiment of the present invention, it is possible to determine, 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 indication and the second TPC indication, or whether the closed-loop power control parameters used for transmitting the PUSCH or PUCCH transmission are determined based on the first TPC indication and the second TPC indication.

[0103] In the embodiment of the present invention, the downlink control information is used to trigger PUSCH transmission or PUCCH transmission, that is, the downlink control information is used to trigger the transmission of PUSCH transmission or PUCCH transmission, or the downlink control information is used to schedule the transmission of PUSCH transmission or PUCCH transmission. However, 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 by the CS-RNTI, but the present invention is not limited thereto. Note that, for specific scrambling methods, refer to the related art, and detailed description thereof will be omitted here.

[0105] In the above embodiment, the DCI format of the downlink control information 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 the related content of the DCI format, refer to the related art, and the detailed description thereof will be omitted here.

[0106] In the above embodiment, PUSCH transmission may correspond to PUSCH repetition Type A or PUSCH repetition Type B, but the present invention is not limited thereto. For the definitions of PUSCH repetition Type A and PUSCH repetition Type B, 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 may be 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 according to the first SRS resource indication and / or the second SRS resource indication.

[0110] For example, 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.

[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 and the 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.

[0112] Also, for example, when a PUSCH transmission is sent based on a first SRS resource indication and a 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.

[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 more than one SRS resource, 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 in SRS source set #1 for transmitting the corresponding PUSCH transmission, and 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 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 more than one SRS resource, 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 in SRS source set#2 for transmitting the corresponding PUSCH transmission, and 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 is the SRS resource.

[0115] In the above embodiment, the first TPC indication corresponds to the above first SRS resource indication or corresponds to a 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 a DCI region corresponding to the above second RS 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 refers to the PUCCH resource being associated with one spatial relationship.

[0119] In another 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 two spatial relationships, and the two spatial relationships are 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 refers to the PUCCH resource being associated with two spatial relationships, and the two spatial relationships being associated with different closed-loop power indices.

[0122] For the concept of spatial relationship, reference can be made to related art, and a detailed explanation 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 instruction and the second TPC instruction.

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

[0125] Also, for example, when the value of the closed-loop power control parameter index corresponding to PUSCH or PUCCH transmission is 1, the terminal device determines the closed-loop power control parameters for transmitting 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 can ignore the DCI region corresponding to the TPC instruction not used for transmitting 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 PUSCH or PUCCH transmission, the terminal device can ignore the DCI region (TPC field #2) corresponding to the second TPC instruction, and conversely, when the above second TPC instruction is used to determine closed-loop power control parameters for transmitting PUSCH or PUCCH transmission, the terminal device can ignore the DCI region (TPC field #1) corresponding to the first TPC instruction.

[0128] In the above-mentioned embodiment, 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 is 1, which means 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 and the closed-loop power control parameter index associated with the second SRS resource indication are the same.

[0131] That is, when a PUSCH transmission is sent based on two SRS resource indications, the two SRS resource indications respectively correspond 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 embodiment, 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, the first PUCCH resource indication is used to indicate a 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 a 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 is associated with one closed-loop power index, which may refer to the PUCCH resource being associated with one spatial relationship, or 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 two, the terminal device determines closed-loop power control parameters for the PUSCH or PUCCH transmission based on a first TPC instruction and a second TPC instruction.

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

[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 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.

[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, which 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 and the closed-loop power control parameter index associated with the second SRS resource indication are different.

[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, it means that the number of closed-loop power control parameter indexes associated with the PUSCH transmission is two.

[0140] In the above-mentioned embodiment, 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 a 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 is associated with two closed-loop power indexes, which may refer to the PUCCH resource being associated with two spatial relationships, and the two spatial relationships being associated with different closed-loop power indexes.

[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 above-mentioned 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 above-mentioned 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 its corresponding transmission precoder.

[0146] In an embodiment of the present invention, the above-mentioned downlink control information may further indicate a repetition number of PUSCH transmission, for example, the repetition number of PUSCH transmission may be determined according to a 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, for PUSCH transmission of PUSCH repetition type A, the PUSCH transmission corresponds to one repetition, and for PUSCH transmission of PUSCH repetition type B, the PUSCH transmission corresponds to one non-imal repetition.

[0148] Also, 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] Also, 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-immal repetitions.

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

[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 is omitted here.

[0152] In order 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] Figure 10 illustrates an example of PUSCH transmission scheduled by DCI. In the example of Figure 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 according to the first TPC instruction.

[0154] As shown in Figure 10, in this example, the PUSCH transmission is a codebook-based PUSCH transmission, and the DCI includes the following DCI regions: TPC field #1, TPC field #2, SRI field #1, SRI field #2, PINL field #1, PINL field #2, in which 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, 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 regions 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, that is, 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 may ignore TPC field #2, or it may be said that the terminal device does not transmit a corresponding PUSCH transmission based on a TPC command corresponding to TPC field #2.

[0158] Figure 11 is a diagram showing another example of PUSCH transmission scheduled by DCI. In the example of Figure 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] As shown in Figure 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, PINL field #2, in which 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, TPC field #1 is associated with the closed loop power control parameter index 0 (l=0) of the PUSCH transmission, and TPC field #2 is associated with the closed loop power control parameter index 1 (l=1) of the 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, since the PUSCH transmission is transmitted based on a first SRS resource indication, and 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 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 in the example of Figure 11, the value is 1, i.e., l=1.

[0161] In the example of FIG. 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 regions.

[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 may be said that the terminal device does not transmit a corresponding PUSCH transmission based on a TPC command corresponding to TPC field #1.

[0164] Figure 12 is a diagram showing another example of PUSCH transmission scheduled by DCI. In the example of Figure 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] As shown in Figure 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, PINL field #2, in which 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, TPC field #1 is associated with the closed loop power control parameter index 0 (l=0) of the PUSCH transmission, and TPC field #2 is associated with the closed loop power control parameter index 1 (l=1) of the 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 transmission opportunity and the second transmission opportunity corresponding to PUSCH transmission correspond to one TRP or one set of SRI, TPMI, RI indications, and the third transmission opportunity and the fourth transmission opportunity corresponding to PUSCH transmission correspond to another TRP or another set of SRI, TPMI, RI indications, and rotate accordingly.

[0167] In the example of Figure 12, the PUSCH transmission is transmitted based on a first SRS resource indication and a second SRS resource indication, but since 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, the number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1, and 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 FIG. 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 regions.

[0169] In the example of FIG. 12, TPC field #2 is associated with l=1, so the UE 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 may ignore TPC field #1, or it may 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 taking the example of PUSCH transmission being codebook-based PUSCH transmission. When 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 showing an example of a 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, DCI schedules PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, in this case, the DCI is equivalent to scheduling the PUCCH transmission. Wherein, the CRC of DCI can be scrambled by C-RNTI or CS-RNTI, and the DCI can correspond to DCI format 1_1 or DCI format 1_2. In addition, the PUCCH resource carrying the HARQ-ACK information does not overlap, that is, the overlap number corresponding to the PUCCH resource is 1, for example, "nrofSlots" is not set in the corresponding PUCCH configuration (PUCCH-config). And 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, the PUCCH-spatialrelationInfo includes one closedLoopIndex parameter, and the value of the parameter 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, namely 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 a corresponding PUCCH transmission based on a 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, DCI schedules PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, in this case, the DCI is equivalent to scheduling the PUCCH transmission. Wherein, the CRC of DCI can be scrambled by C-RNTI or CS-RNTI, and the DCI can correspond to DCI format 1_1 or DCI format 1_2. In addition, the PUCCH resource carrying the HARQ-ACK information does not overlap, that is, the overlap number corresponding to the PUCCH resource is 1, for example, "nrofSlots" is not set in the corresponding PUCCH configuration (PUCCH-config). In addition, 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, the PUCCH-spatialrelationInfo includes one closedLoopIndex parameter, and the value of the parameter is 1, that is, the above-mentioned 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, namely TPC field #1 and TPC field #2, in which TPC field #1 is associated with the closed-loop power control parameter index 0 (l=0) of the PUCCH, and TPC field #2 is associated with the closed-loop power control parameter index 1 (l=1) of the PUCCH.

[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 can 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 parameter of the corresponding PUCCH transmission based on one of the two TPC fields. For example, TPC field#2 is associated with l=1, and the PUCCH transmission is also associated with l=1, so the terminal device determines the closed-loop power control parameter 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 may be said that the terminal device does not transmit a corresponding PUCCH transmission based on a TPC command corresponding to TPC field #2.

[0181] 15 illustrates 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 indication.

[0182] In the example of Figure 15, DCI schedules PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, and in this case, the DCI is equivalent to scheduling the PUCCH transmission. Wherein, the CRC of DCI can be scrambled by C-RNTI or CS-RNTI, and the DCI can 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, the "nrofSlots" set in the corresponding PUCCH configuration (PUCCH-config) is n2. And 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, the PUCCH-spatialrelationInfo includes one closedLoopIndex parameter, and the value of the parameter 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, namely 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 may ignore TPC field #2, or it may 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 a first TPC instruction.

[0186] In the example of Figure 16, DCI schedules PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, in this case, the DCI is equivalent to scheduling the PUCCH transmission. Wherein, the CRC of DCI can be scrambled by C-RNTI or CS-RNTI, and the DCI can correspond to DCI format 1_1 or DCI format 1_2. In addition, the PUCCH resource carrying the HARQ-ACK information does not overlap, that is, the overlap number corresponding to the PUCCH resource is 1, for example, there is no "nrofSlots" configured in the corresponding PUCCH configuration (PUCCH-config). And 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, the PUCCH-spatialrelationInfo#1 includes one closedLoopIndex parameter, the value of which is 1, i.e., l=1, and the 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, namely, 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 may be said that the terminal device does not transmit a corresponding PUCCH transmission based on a TPC command corresponding to TPC field #2.

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

[0190] In the example of Figure 17, DCI schedules PDSCH, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information, and in this case, this DCI corresponds to scheduling this PUCCH transmission. Wherein, the CRC of DCI can be scrambled by C-RNTI or can be scrambled by CS-RNTI, and this DCI can correspond to DCI format 1_1 or DCI format 1_2. In addition, there is no overlap of the PUCCH resource carrying this HARQ-ACK information, that is, the overlap number corresponding to this PUCCH resource is 1, for example, there is no "nrofSlots" configured in the corresponding PUCCH configuration (PUCCH-config). And 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, the PUCCH-spatialrelationInfo#1 includes one closedLoopIndex parameter, the value of which is 0, i.e., l=0, and the 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, namely, 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 according to the two TPC fields (TPC field #1 and TPC field #2). For example, TPC field #1 corresponds to TRP #1, that is, the closed-loop power control parameter is 0 (l=0), and TPC field #2 corresponds to TRP #2, that is, 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 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 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 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 based on the number of closed-loop power control parameter indexes corresponding to the PUSCH or PUCCH transmission. This clarifies how a terminal device determines power control parameters for corresponding uplink transmission based on a DCI when the DCI contains two TPC instructions, thereby avoiding erroneous instructions and improving system reliability.

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

[0194] 18 is a diagram showing an example of a wireless communication method in 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 related to 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, and a 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 a parameter of the first BWP, and the first DCI region does not exist when decoding the first DCI region according to a parameter of the active BWP; and 1802: The terminal device considers that the first DCI area does not exist for the first BWP.

[0196] Note that, although the above-mentioned FIG. 18 is for illustrative purposes, the present invention is not limited thereto. For example, some operations (steps) can 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-mentioned contents.

[0197] According to the method of the embodiment of the present invention, when a BWP switch occurs, if a DCI field exists when decoding according to the parameters of the target BWP, but this DCI field does not exist when decoding according to the parameters of the active BWP, the transmission scheduled by this DCI occurs in this target BWP, so it is necessary to indicate by this DCI field. However, since this DCI does not include this DCI field, generally speaking, the DCI field is decoded in a manner of zero padding, that is, the indication of this DCI field is considered to be "all 0" based on the size of this DCI field in the target BWP. However, when this 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 not appropriate to decode this DCI field as "all 0", that is, it changes the original meaning (original intention) of the scheduling DCI. For example, when the DCI field is considered to be "all 0", it means that the corresponding indication is an indication of multi-TRP uplink transmission. However, in reality, the scheduling DCI is intended to indicate single TRP uplink transmission. Therefore, in this method, the terminal device does not regard the DCI as "all 0", but regards the DCI field as not existing, which means that according to this method, even if the DCI is decoded based on the parameters of the target BWP, the corresponding DCI field can be correctly decoded because it is for indicating single TRP uplink transmission. This can prevent erroneous uplink transmission caused by the terminal device misunderstanding the DCI, and thus prevent degradation of system performance.

[0198] In some embodiments, "the first DCI region exists when the first DCI region is decoded based on the parameters of the first BWP, and the first DCI region does not exist when the first DCI region is decoded based on the parameters of the active BWP" refers to the first DCI region not being set for the active BWP, and the first DCI region being set for the first BWP. That is, since the first DCI region is not set for the active BWP in which the terminal device is located, but the first DCI region is set for the target BWP to which the terminal device switches, the terminal device considers that the first DCI region 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" refers to the terminal device considering the first DCI field to be zero padded when decoding the first DCI field for the first BWP, and ignoring 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 performs zero padding on 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 that the first DCI field does not exist for the first BWP" refers to the terminal device considering that the first DCI field is not set for the first BWP, that is, the terminal device directly considers that the first DCI field is not set 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 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 1902: For decoding the second DCI area, the terminal device considers that, for the first BWP, one SRS resource set for codebook-based or non-codebook-based PUSCH transmission is configured.

[0203] Note that, although the above-mentioned FIG. 19 is for illustrative purposes, the present invention is not limited thereto. For example, some operations (steps) can 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-mentioned contents.

[0204] According to the method of the embodiment of the present invention, when a BWP switch occurs, when interpreting according to the parameters of the target BWP, two sets of SRS resources are configured, so there are two SRS resource indications and two PINL indications in the DCI, and when interpreting according to the parameters of the active BWP, only one set of SRS resources is configured, so the DCI includes only one SRS resource indication and only one PINL indication, and two SRS resource indications and two PINL indications are required because the transmission scheduled by the DCI occurs in the target BWP. However, since the DCI does not include a second SRS resource indication and a second PINL indication, generally speaking, a corresponding DCI field can be additionally generated for the SRS resource indication and the PINL indication in a manner of zero padding. However, when the DCI field is an SRS resource indicator field and / or a Precoding information and number of layers field, it is not appropriate to interpret the DCI field as "all zero", that is, it defeats the purpose of the scheduling DCI. For example, when the DCI region is regarded as "all 0", it means that the corresponding instruction is an instruction for PUSCH transmission of multi-TRP. However, in reality, the scheduling DCI is intended to indicate PUSCH transmission of single TRP. Therefore, in this method, the terminal device does not regard two SRS resource sets for codebook-based or non-codebook-based PUSCH transmission as configured for the target BWP, but regards one SRS resource set for codebook-based or non-codebook-based PUSCH transmission as configured for the target BWP, which means that the corresponding DCI region can be accurately decoded because the DCI is for indicating single TRP uplink transmission even if it is decoded based on the parameters of the target BWP. Therefore, it is possible to avoid erroneous uplink transmission caused by the terminal device erroneously understanding the DCI, and thus it is possible to prevent degradation of system performance.

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

[0206] The following takes DCI scheduling codebook-based PUSCH transmission 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, for which one SRS resource set for transmitting PUSCH transmission, i.e., SRS resource set#1, is configured, and the BWP after switching is BWP#2, for which two SRS resource sets for transmitting PUSCH transmission, SRS resource set#2 and SRS resource set#3, are configured, and BWP#2 is further configured with a second TPC field for indicating a closed-loop power control parameter of the corresponding PUSCH transmission, or it may be stated as follows, i.e., BWP#2 is further configured with one additional TPC field for indicating a closed-loop power control parameter of the corresponding PUSCH.

[0209] In this example, the CRC of the DCI may be scrambled by the C-RNTI or may be scrambled by the CS-RNTI. Also, the BWP (BWP#2) indicated by the BWP range 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 FIG. 20, the DCI format 0_1 ​​region is generated based on the parameters of UL BWP#1, PUSCH transmission needs to be transmitted in 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 perform processing 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, the SRI field #2, and the PINL field #2 and their corresponding positions in the DCI area according to 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 (parameters of UL BWP#1) and the parameters for decoding DCI (parameters of UL BWP#1) are different, the prior art generally uses the first step method to make PUSCH transmission be transmitted based on the parameters of the target BWP. However, when 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 area, or may be said as not existing, 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 for indicating PUSCH transmission of a single TRP. In this way, it is possible to avoid the terminal device from misunderstanding these areas.

[0216] The above two-step process enables the terminal device to accurately decode the DCI area 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 region is generated based on the parameters of UL BWP #1 and the interpretation of the DCI region 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 region based on the parameters of UL BWP #2, the terminal device can assume that the TPC field #2, the SRI field #2 and the PINL field #2 do not exist, in order to avoid interpreting the DCI as a DCI for scheduling an mTRP PUSCH, and / or when interpreting the SRI field #2 and the PINL field #2 of the DCI region based on the parameters of UL BWP #2, the terminal device can assume that the SRS resource set #2 is not set. In this way, it can be ensured that the terminal device 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 regions 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 determining that TPC field #2 does not exist may mean that the terminal device determines that a second TPC field (i.e., an additional TPC field) is not configured for DCI format 0_1 ​​in UL BWP #2.

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

[0223] The following takes 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 an additional TPC field for indicating closed-loop power control parameters of PUCCH is not configured, 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) for indicating closed-loop power control parameters of PUCCH is configured, 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 a PDSCH transmission, and the PDSCH has a corresponding PUCCH resource for feeding back HARQ-ACK information. In addition, the CRC of the DCI may be scrambled by the C-RNTI or may be scrambled by the CS-RNTI. In addition, the BWP (DL BWP#2) indicated by the BWP region 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 in DL BWP#1, and performs DL BWP switching after receiving the DCI, that is, switching from DL BWP#1 to DL BWP#2. Because it is a TDD transmission, switching from DL BWP#1 to DL BWP#2 means that the UL BWP also needs to be switched from UL BWP#1 to UL BWP#2. Thus, the PDSCH and PUCCH transmission scheduled by the DCI is transmitted in BWP#2, that is, transmitted based on the 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 FIG. 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 according to the parameters of UL BWP #2, and consider these bits to be all 0; and Second step: Ignore this area (TPC field #2).

[0232] In the example of FIG. 22, since the parameters for generating DCI (parameters of UL BWP#1) and the parameters for decoding DCI (parameters of UL BWP#1) are different, the conventional technology generally adopts the method of the first step to allow PUCCH transmission to be transmitted based on the parameters of the target BWP. However, when the DCI field (TPC field#2) is considered to be "all 0", it 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 0", but ignores the DCI field, or it can be said that the DCI field does not exist, which 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 avoid the terminal device misunderstanding these fields.

[0233] Through the above two-step process, the terminal device can accurately decode the DCI area 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 FIG. 23, since the DCI format 1_1 region is generated based on the parameters of UL BWP#1 and the deciphering of the DCI region needs to be based on the parameters of UL BWP#2, in order to avoid the terminal device deciphering the DCI as a DCI for scheduling a multi-TRP PUSCH, the terminal device can assume that the TPC field#2 does not exist when decoding the DCI format based on the parameters of UL BWP#2 after receiving the DCI format. In this way, it can be ensured that the terminal device assumes that the DCI is a DCI for scheduling a PUSCH of a single TRP (or corresponds to one TPC indication) when decoding the DCI based on the parameters of UL BWP#2. In this way, it is possible to avoid the terminal device misinterpreting the indication of the DCI for scheduling.

[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, erroneous uplink transmission caused by the terminal device erroneously understanding the DCI can be avoided, thereby preventing degradation of system performance.

[0238] <Example of the fourth aspect> In an embodiment of the present invention, a wireless communication device is provided, which may for example be a terminal device or may be 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 similar to that of the method in the embodiment of the first aspect, and for its specific implementation, reference may be made to the implementation of the method in the embodiment of the first aspect, and duplicated 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 a 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 corresponds to DCI format 0_2.

[0245] In some embodiments, the number of overlaps of the PUSCH transmissions is indicated by the downlink control information, for example, the number of overlaps of the PUSCH transmissions is determined by a number of overlaps 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 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.

[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 overlapping number of the PUSCH transmission is 1, the terminal device determines that the PUSCH transmission is sent based on the first SRS resource indication.

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

[0253] In some embodiments, when the number of overlaps of the PUSCH transmission is 2 and the overlapping 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 a DCI area corresponding to the second SRS resource indication, where the DCI area corresponding to the second SRS resource indication includes: an SRI area corresponding to the second SRS resource indication, and / or a PINL area 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 method 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 overlapping number 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 overlapping number 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 a DCI area corresponding to the second SRS resource indication, where the DCI area corresponding to the second SRS resource indication includes: an SRI area corresponding to the second SRS resource indication, and / or a PINL area 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 overlapping number 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 a DCI area corresponding to the second SRS resource indication, where the DCI area corresponding to the second SRS resource indication includes: an SRI area corresponding to the second SRS resource indication, and / or a PINL area corresponding to the second SRS resource indication.

[0262] In some embodiments, when the overlapping number 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 a DCI area corresponding to the second SRS resource indication, where the DCI area corresponding to the second SRS resource indication includes: an SRI area corresponding to the second SRS resource indication, and / or a PINL area corresponding to the second SRS resource indication.

[0264] In some embodiments, when the overlapping number 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 in the embodiment of the present invention may further include other components or modules, and the specific contents of these components or modules can be referred to in the related art.

[0266] For convenience, the connection relationships or signal directions between each component or module are shown in Fig. 24, 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, a memory, a transmitter (device), and a receiver (device), but the implementation of the present invention is not limited thereto.

[0267] According to the device in the embodiment of the present invention, the terminal device can accurately determine whether the corresponding uplink transmission corresponds to single-TRP transmission or multi-TRP transmission according to the DCI indication, and 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-mentioned DCI indication.

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

[0269] FIG. 25 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 similar to that of the method in FIG. 8 of the embodiment of the second aspect, and its specific implementation can refer to the implementation of the method in FIG. 8 of the embodiment of the first aspect, and redundant explanations of the same content will be omitted here.

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

[0271] A receiving unit 2501: receiving downlink control information, where the downlink control information is used to trigger a PUSCH or PUCCH transmission, and when 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 A determining unit 2502: determines a closed-loop power control parameter for transmitting the PUSCH or PUCCH transmission according to the first TPC instruction and / or the second TPC instruction.

[0272] FIG. 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 similar to that of the method in FIG. 9 of the embodiment of the second aspect, and its specific implementation can refer to the implementation of the method in FIG. 9 of the embodiment of the second aspect, and redundant 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: 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 determination unit 2602: 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 based on one of the first TPC indication and the second TPC indication, or based on the first TPC indication and the second TPC indication.

[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 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.

[0278] In the above embodiment, 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 2.

[0279] In some embodiments, the downlink control information further includes a first PUCCH resource indication, the first PUCCH resource indication is used to indicate a PUCCH resource 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, when 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, which means that the PUCCH resource is associated with one spatial relationship.

[0282] Alternatively, the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, which refers to the PUCCH resource being associated with two spatial relationships, in 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 indexes, the number of closed-loop power control parameter indexes 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 indexes means that the PUCCH resource is associated with two spatial relationships, in which the two spatial relationships are associated with different closed-loop power indexes.

[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-mentioned embodiment, the number of closed-loop power control parameter indexes associated with the PUSCH transmission is 1, for example, refers to 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 is 1, for example, means 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 and the closed-loop power control parameter index associated with the second SRS resource indication are the same.

[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 a 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, which means that the PUCCH resource is associated with one spatial relationship.

[0293] Alternatively, the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, which refers to the PUCCH resource being associated with two spatial relationships, in 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 zero, and the closed loop power control parameter index corresponding to the second TPC command is one.

[0296] In the above embodiment, the downlink control information further includes a first SRS resource indication and a second SRS resource indication, where 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 embodiment, the number of closed-loop power control parameter indexes associated with the PUSCH transmission is two, for example, 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 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.

[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 a 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 indexes means that the PUCCH resource is associated with two spatial relationships, in which the two spatial relationships are associated with different closed-loop power indexes.

[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 embodiment of the present invention may further include other components or modules, and the specific contents of these components or modules can be found in the related art.

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

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

[0303] <Example of the sixth aspect> In an embodiment of the present invention, a wireless communication device is provided, which may for example be a terminal device or may be 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 similar to that of the method in FIG. 18 of the embodiment of the third aspect, and for its specific implementation, reference may be made to the implementation of the method in FIG. 18 of 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: receives downlink control information, the downlink control information is related to 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 a parameter of the first BWP, and the first DCI region does not exist when decoding the first DCI region according to a parameter of the active BWP; and Processing unit 2702: With respect to the first BWP, it considers that the first DCI region does not exist.

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

[0308] In some embodiments, the processing unit 2702, with respect to the first BWP, considers the first DCI field to not exist means that, with respect to the first BWP, the processing unit 2702 considers the first DCI field to be zero padding when decoding, and, with respect to 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 region to be non-existent with respect to the first BWP, this refers to the terminal device considering the first DCI region to be not set with respect to the first BWP.

[0310] FIG. 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 similar to that of the method in FIG. 19 of the embodiment of the third aspect, and its specific implementation can refer to the implementation of the method in FIG. 19 of the embodiment of the third aspect, and duplicated 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: receives 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 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 Processing unit 2802: For decoding the second DCI region, 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 embodiment of the present invention may further include other components or modules, and the specific contents of these components or modules can be found in the related art.

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

[0315] According to the device in the embodiment of the present invention, it is possible to avoid erroneous uplink transmissions caused by the terminal device erroneously understanding 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 a communication system in an 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 takes only one terminal device and only one network device as an example for explanation, 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, V2X communication, etc.

[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 method described in the embodiments of the first aspect to the embodiments of the third aspect. Note that the relevant content of the network device 2901 is not limited in the present invention. The relevant content of the terminal device 2902 has already been described in detail in the embodiments of the first aspect to the embodiments of the third aspect, and the contents thereof are incorporated herein, and the 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] Fig. 30 is a diagram showing 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, and the memory 3002 stores data and programs and is connected to the processor 3001. It should be noted that this figure is merely an example, and other types of configurations may be used to supplement or replace the configurations to realize telecommunication functions or other functions.

[0321] For example, the processor 3001 may be configured to execute a program to implement a wireless communication method according to any one of the embodiments 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. Among them, the functions of these components are similar to those of the conventional technology, so detailed description thereof will be omitted here. It is not necessary for the terminal device 3000 to include all the components shown in Fig. 30. In addition, the terminal device 3000 may further include components not shown in Fig. 30, but the conventional technology can be referred to in this regard.

[0323] An embodiment of the present invention further provides a computer readable program, which, when executed on a terminal device, causes a computer to execute 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 having a computer readable program stored thereon, 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-mentioned devices and methods may be realized by software or hardware, or may be realized 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-mentioned device or component, or causes the logic component to realize the above-mentioned various methods or steps. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, a processor for use in a computer, etc. The present invention further relates to a storage medium, such as a hard disk, a magnetic disk, an optical hard disk, a DVD, a flash memory, etc., storing the above-mentioned program.

[0326] Additionally, one or more combinations of the functional blocks depicted 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 depicted 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, a combination of 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 such embodiments, and any modifications to the present invention fall within the technical scope of the present invention as long as they do not depart from the spirit of the present invention.

[0328] Furthermore, with respect to the above-mentioned embodiments, the following supplementary notes are disclosed.

[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 a 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 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.

[0330] (Appendix 2) 2. The method according to 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) 3. The method according to claim 2, comprising: The method, wherein the number of times the PUSCH transmission is repeated is determined by a number of times indicated in a time domain resource allocation (TDRA) indication of the downlink control information.

[0332] (Appendix 4) 2. The method according to 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 according to claim 4, The method, wherein the overlapping scheme is sequential mapping or cyclic mapping.

[0334] (Appendix 6) 2. The method according to claim 1, comprising: A 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 according to claim 6, comprising: The radio resource control signaling is used to indicate a first DCI format, and a DCI format corresponding to the downlink control information is the same as the first DCI format.

[0336] (Appendix 8) 2. The method according to claim 1, comprising: The method, wherein the PUSCH transmission is a non-codebook based PUSCH transmission, and information of a transmission precoder and information of 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 according to 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) The method according to any one of appendixes 1 to 9, comprising: The method, wherein, when the overlapping number 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, further comprising: The terminal device ignores a DCI region corresponding to the second SRS resource indication, where the DCI region corresponding to the second SRS resource indication includes: an SRI region corresponding to the second SRS resource indication; and / or The second SRS resource indication corresponds to a PINL field.

[0340] (Appendix 12) The method according to any one of appendixes 1 to 9, comprising: A method in which, when the number of overlaps of the PUSCH transmission is 2 and the overlapping 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, further comprising: 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 region corresponding to the second SRS resource indication; and / or The second SRS resource indication corresponds to a PINL field.

[0342] (Appendix 14) The method according to any one of appendixes 1 to 9, comprising: A method for determining, when the number of repetitions of the PUSCH transmission is 2 and the repetition method corresponding to the PUSCH transmission is cyclic mapping, that 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) The method according to any one of appendixes 1 to 9, comprising: The method, wherein, when the overlapping number of the PUSCH transmission is two, 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) The method according to any one of appendixes 1 to 9, comprising: The method of the present invention, wherein, when the overlapping number 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, comprising: 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 region corresponding to the second SRS resource indication; and / or The second SRS resource indication corresponds to a PINL field.

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

[0347] (Appendix 19) The method according to any one of appendixes 1 to 9, comprising: The method of the present invention further comprises: when the overlapping number 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) 20. The method of claim 19, further comprising: 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 region corresponding to the second SRS resource indication; and / or The second SRS resource indication corresponds to a PINL field.

[0349] (Appendix 21) The method according to any one of appendixes 1 to 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 according to 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 region corresponding to the second SRS resource indication; and / or The second SRS resource indication corresponds to a PINL field.

[0351] (Appendix 23) The method according to any one of appendixes 1 to 9, comprising: A method in which, 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.

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

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

[0354] (Appendix 26) The method according to any one of appendixes 1 to 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 a 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 a 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 a number of closed-loop power control parameter indexes corresponding to the PUSCH or PUCCH transmission, whether a closed-loop power control parameter of the PUSCH or PUCCH transmission is determined based on one of the first TPC instruction and the second TPC instruction, or whether the closed-loop power control parameter of the PUSCH or PUCCH transmission is determined based on the first TPC instruction and the second TPC instruction.

[0357] (Appendix 29) 29. The method according to claim 28, comprising: the downlink control information further includes a first SRS resource indication and a second SRS resource indication, and a 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 according to claim 29, The method, wherein 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.

[0359] (Appendix 31) 29. The method according to 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, a number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is 1.

[0360] (Appendix 32) 29. The method according to claim 29, 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, a number of closed-loop power control parameter indexes corresponding to the PUSCH transmission is two.

[0361] (Appendix 33) 29. The method according to claim 28, comprising: A method in which the downlink control information further includes a first PUCCH resource indication, the first PUCCH resource indication is used to indicate a PUCCH resource 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 when 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 according to 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 refers to the PUCCH resource being associated with one spatial relationship.

[0364] (Appendix 36) 35. The method according to claim 34, A method in which the PUCCH resource indicated by the first PUCCH resource indication is associated with one closed-loop power index, referring to the PUCCH resource being associated with two spatial relationships, in 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 indexes, the number of closed-loop power control parameter indexes corresponding to the PUCCH transmission is two.

[0366] (Appendix 38) 38. The method according to claim 37, A method in which the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indexes, referring to the PUCCH resource being associated with two spatial relationships, in which the two spatial relationships are associated with different closed-loop power indexes.

[0367] (Appendix 39) 29. The method according to claim 28, comprising: 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 a 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 according to the first TPC indication; When a value of a closed-loop power control parameter index corresponding to the PUSCH or PUCCH transmission is 1, the terminal device determines a closed-loop power control parameter for transmitting the PUSCH or PUCCH transmission based on the second TPC indication.

[0369] (Appendix 41) 39. The method of claim 39, The method, wherein 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, in which 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 used for the PUCCH transmission, wherein 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 refers to the PUCCH resource being 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, referring to the PUCCH resource being associated with two spatial relationships, in which the two spatial relationships are associated with the same closed-loop power index.

[0376] (Appendix 48) 29. The method according to claim 28, comprising: A method for determining closed-loop power control parameters for transmitting the PUSCH or PUCCH transmission based on the first TPC indication and the second TPC indication when the number of closed-loop power control parameter indexes associated with the PUSCH or PUCCH transmission is two.

[0377] (Appendix 49) 49. The method according to claim 48, comprising: a closed loop power control parameter index corresponding to the first TPC command is 0; A closed loop power control parameter index corresponding to the second TPC instruction is one.

[0378] (Appendix 50) 49. The method according to claim 48, comprising: 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 indication is determined by a closed loop power control parameter index associated with the first SRS resource indication; The method of claim 1, 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 according to claim 48, comprising: 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 according to claim 48, comprising: 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 used for the PUCCH transmission, wherein the PUCCH resource indicated by the first PUCCH resource indication is associated with two closed-loop power indexes.

[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 indexes, referring to the PUCCH resource being associated with two spatial relationships, in which the two spatial relationships are associated with different closed-loop power indexes.

[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, and a 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 the first DCI region is decoded based on parameters of the first BWP, and the first DCI region does not exist when the first DCI region is decoded based on parameters of the active BWP; and The method includes the terminal device considering the first DCI area not to exist for the first BWP.

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

[0384] (Appendix 56) 55. The method of claim 54, The terminal device considers that the first DCI region does not exist for the first BWP when: The method, wherein 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 region does not exist for the first BWP when: 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 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 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 device 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 claims 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; A communication system, wherein the terminal device is configured to perform a method according to any one of claims 1 to 58.

Claims

1. 1. A wireless communication device, comprising: A receiver and a processor are included. The receiver receives downlink control information, the downlink control information is used to trigger a PUSCH transmission, and the downlink control information includes a first SRS resource indication and a second SRS resource indication; The processor determines, 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 times the PUSCH transmission is repeated; 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. Including, A wireless communication device, wherein the presence or absence of the dynamic switching region in the downlink control information is set by radio resource control signaling.

2. 2. The wireless communication device according to claim 1, A wireless communication device, wherein the number of times the PUSH transmission is repeated is indicated by the downlink control information, and the number of times the PUSH transmission is repeated is determined by the number of times indicated in a time domain resource allocation indication of the downlink control information.

3. 2. The wireless communication device according to claim 1, A wireless communication device, wherein a duplication scheme corresponding to the PUSH transmission is set by radio resource control signaling, and the duplication scheme is sequential mapping or cyclic mapping.

4. 2. The wireless communication device according to claim 1, If the overlapping number of the PUSCH transmission is 1, the processor determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

5. 5. The wireless communication device according to claim 4, The processor ignores the DCI region corresponding to the second SRS resource indication, and the DCI region corresponding to the second SRS resource indication is an SRI field corresponding to the second SRS resource indication; and / or A PINL region corresponding to the second SRS resource indication 23. A wireless communication device comprising:

6. 2. The wireless communication device according to claim 1, When the overlapping number of the PUSCH transmission is 2 and the overlapping mode corresponding to the PUSCH transmission is sequential mapping, the processor determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

7. 7. The wireless communication device according to claim 6, The processor ignores the DCI region corresponding to the second SRS resource indication, and the DCI region corresponding to the second SRS resource indication is an SRI field corresponding to the second SRS resource indication; and / or A PINL region corresponding to the second SRS resource indication 23. A wireless communication device comprising:

8. 2. The wireless communication device according to claim 1, A wireless communication device, wherein when the number of overlaps of the PUSCH transmission is 2 and the overlapping method corresponding to the PUSCH transmission is cyclic mapping, the processor determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

9. 2. The wireless communication device according to claim 1, When the overlapping number of the PUSCH transmission is two, the processor determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

10. 2. The wireless communication device according to claim 1, A wireless communication device, wherein 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 processor determines that the PUSCH transmission is transmitted based on the first SRS resource indication.

11. 2. The wireless communication device according to claim 1, A wireless communication device, wherein 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 processor determines that the PUSCH transmission is transmitted based on the first SRS resource indication and the second SRS resource indication.

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