Wireless communication method and wireless communication device

Abstract

Provided in the present disclosure is a wireless communication method. The method comprises: a terminal device receiving configuration information of a sounding reference signal from a base station, wherein the configuration information comprises power control information corresponding to the sounding reference signal; and the power control information comprises independent closed-loop power control of at least two sounding reference signals, such that the independent closed-loop power control of the at least two sounding reference signals can simultaneously support sounding reference signals of downlink channel state information and sounding reference signals of beam management in a U-1 process. In addition, the terminal device receives an indication of power adjustment of the sounding reference signal, which is sent by the base station, such that the terminal device can more accurately adjust the independent closed-loop power of the sounding reference signal.

Description

Wireless communication method and wireless communication device Technical Field

[0001] The present disclosure relates to the field of wireless communications, and in particular to a wireless communication method and a wireless communication device. Background Art

[0002] In NR systems, uplink performance has always been a significant bottleneck due to limitations on terminal equipment (UE) transmit power and the number of antennas. Especially for UEs at the cell edge, power control typically employs partial path loss compensation, further degrading uplink performance for these UEs. Furthermore, current commercial networks generally utilize TDD patterns with abundant downlink resources, further limiting uplink performance. Therefore, a wireless communication method and device are needed to improve upon existing technologies.

[0003] Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a wireless communication method in view of the above-mentioned defects of the prior art, aiming to solve the problems existing in the prior art.

[0005] According to one aspect of the present disclosure, a wireless communication method is provided, which is executed in a terminal device, and the method includes:

[0006] receiving configuration information of a sounding reference signal, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals;

[0007] An indication of power adjustment of the sounding reference signal is received.

[0008] According to one aspect of the present disclosure, a wireless communication method is provided, which is executed in a terminal device, and the method includes:

[0009] Receive configuration information, wherein the configuration information includes some joint parameters, and the some joint parameters are used to indicate that the serving cell configures a joint / downlink transmission configuration indication state list and an uplink transmission configuration indication state list, the downlink transmission configuration indication state in the joint / downlink transmission configuration indication state list is used for downlink transmission and / or uplink transmission, and the uplink transmission configuration indication state in the uplink transmission configuration indication state list is only used for uplink transmission.

[0010] According to one aspect of the present disclosure, a wireless communication method is provided, which is executed in a terminal device, and the method includes:

[0011] A physical random access channel is sent on a random access opportunity based on the signal quality of the synchronized broadcast block and a threshold value, wherein the threshold value is predefined or configured by a higher layer parameter.

[0012] According to one aspect of the present disclosure, a wireless communication method is provided, which is executed by a base station, and the method includes:

[0013] Sending configuration information for a sounding reference signal, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals;

[0014] Send an indication of power adjustment of a sounding reference signal.

[0015] According to one aspect of the present disclosure, a wireless communication method is provided, which is executed by a base station, wherein the method includes:

[0016] Send configuration information, wherein the configuration information includes some joint parameters, and the some joint parameters are used to indicate that the serving cell configures a joint / downlink transmission configuration indication state list and an uplink transmission configuration indication state list, the downlink transmission configuration indication state in the joint / downlink transmission configuration indication state list is used for downlink transmission and / or uplink transmission, and the uplink transmission configuration indication state in the uplink transmission configuration indication state list is only used for uplink transmission.

[0017] According to one aspect of the present disclosure, a wireless communication method is provided, which is executed by a base station, wherein the method includes:

[0018] Based on the signal quality of the synchronous broadcast block and the threshold value, a physical random access channel is received at a random access opportunity.

[0019] According to one aspect of the present disclosure, a wireless communication device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the steps in the data processing method as described in any one of the above items.

[0020] Beneficial effects of the present invention: a terminal device receives configuration information of a sounding reference signal from a base station, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals; in addition, the terminal device receives an indication of power adjustment of the sounding reference signal sent by the base station. The present invention configures and indicates independent closed-loop power control of at least two sounding reference signals, supports the use of different independent closed-loop power controls for the sounding reference signal for acquiring downlink CSI and the sounding reference signal for beam management of the U-1 process, so that the network side can configure the two sounding reference signals more flexibly and adjust the transmission power of the two sounding reference signals more accurately, and also enables the network side to more efficiently acquire downlink CSI and perform beam management of the U-1 process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present disclosure or related technologies, the following drawings will be briefly introduced in the embodiments. Obviously, the drawings are only some embodiments of the present disclosure, and ordinary technicians in this field can derive other drawings based on these drawings without inventive work.

[0022] FIG1a is a schematic diagram illustrating a deployment method of a base station provided by the present disclosure.

[0023] FIG1 b is a schematic diagram illustrating a deployment method of a base station provided in the present disclosure.

[0024] FIG2 a is a schematic diagram illustrating a wireless communication method provided by the present disclosure.

[0025] FIG2 b is a schematic diagram illustrating a wireless communication method provided by the present disclosure.

[0026] FIG3 illustrates a schematic diagram of a wireless communication method provided by the present disclosure.

[0027] FIG4 is a schematic diagram illustrating a time relationship provided by the present disclosure.

[0028] FIG5 a illustrates a schematic diagram of a wireless communication method provided by the present disclosure.

[0029] FIG5 b illustrates a schematic diagram of a wireless communication method provided by the present disclosure.

[0030] FIG6 a is a schematic diagram illustrating a wireless communication method provided by the present disclosure.

[0031] FIG6 b illustrates a schematic diagram of a wireless communication method provided by the present disclosure.

[0032] FIG7 illustrates a schematic diagram of the relationship between a physical random access channel and power provided by the present disclosure.

[0033] FIG8 illustrates a schematic diagram of the relationship between a physical random access channel and power provided by the present disclosure.

[0034] FIG9 illustrates a schematic diagram of the time relationship between a random access channel and a random access response provided by the present disclosure.

[0035] FIG10 illustrates a schematic diagram of the time relationship between a random access channel and a random access response provided by the present disclosure.

[0036] FIG11 illustrates a schematic diagram of the time relationship between a random access channel and a random access response provided by the present disclosure.

[0037] FIG12 illustrates an exemplary block diagram of a wireless communication system provided by the present disclosure. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure describe technical matters, structural features, objectives and effects in detail with reference to the accompanying drawings, as described below. Specifically, the terms in the embodiments of the present disclosure are only used to describe the purpose of specific embodiments, rather than to limit the present disclosure.

[0039] In this disclosure, "A or B" may mean "only A," "only B," or "both A and B."

[0040] In other words, in the present disclosure, "A or B" may be interpreted as "A and / or B." For example, in the present disclosure, "A, B or C" may mean "only A," "only B," "only C," or "any combination of A, B, and C."

[0041] As used in this disclosure, a slash ( / ) or a comma may mean "and / or". For example, "A / B" may mean "A and / or B". Thus, "A / B" may mean "only A", "only B", or "both A and B". For example, "A, B, C" may mean "A, B, or C".

[0042] In the present disclosure, “at least one of A and B” may mean “only A”, “only B”, or “both A and B”. In addition, in the present disclosure, the expression “at least one of A or B” or “at least one of A and / or B” may be interpreted as “at least one of A and B”.

[0043] In addition, in the present disclosure, “at least one of A, B, and C” may mean “only A,” “only B,” “only C,” or “any combination of A, B, and C.” In addition, “at least one of A, B, or C” or “at least one of A, B, and / or C” may mean “at least one of A, B, and C.”

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0045] Those skilled in the art will recognize and appreciate that the details of the described examples are merely illustrative of some embodiments and that the teachings set forth herein are applicable to various alternative arrangements.

[0046] The technical solution disclosed herein can be applied to various wireless communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, 5G communication system or future wireless communication systems, etc.

[0047] To facilitate understanding of the technical solutions of the present disclosure, the technical solutions related to the present disclosure are described below.

[0048] Before describing the present disclosure in further detail, the following prior art is provided for a better understanding of the present disclosure.

[0049] To improve uplink performance, the density of base station deployment can be increased. However, since downlink performance is sufficient, it is possible to consider adding base stations dedicated to uplink nodes only. Such base stations only need to receive signals, not transmit, thus saving energy. Furthermore, such base stations only require a receive system, not a transmit system, thus reducing hardware costs.

[0050] Figure 1 illustrates two deployment scenarios. Typically, one macro base station transmit-receive point (TRP) is paired with N uplink-only TRPs, with an ideal backhaul between them. In Figure 1(a), uplink reception and downlink transmission are completely separated: the macro base station TRP only transmits downlink signals, while the uplink-only TRP only receives signals. In Figure 1(b), uplink reception and downlink transmission are partially separated: the macro base station TRP both transmits and receives signals, while the uplink-only TRP only receives signals.

[0051] In the prior art, the closed-loop power control of SRS is divided into two cases. The first is that SRS shares the closed-loop power control of the physical uplink shared channel (PUSCH). In this case, the number of closed-loop power controls of SRS is the same as the number of PUSCHs, that is, a maximum of two. When the high-level parameter sounding reference signal power control adjustment state (srs-PowerControlAdjustmentStates) in the SRS resource set is not configured, the sounding reference signal (SRS) shares the first closed-loop power control of PUSCH; if the high-level parameter is configured to be the same as the second PUSCH closed-loop power control (i.e., sameAsFci2), SRS shares the second closed-loop power control of PUSCH. The closed-loop power control adjustment amount of PUSCH is indicated by the transmission power control (TPC) command in the downlink control information (DCI) format 0_0, 0_1, 0_2, and 2_2. These DCI formats can also indicate the closed-loop power control adjustment amount of SRS that shares closed-loop power control with PUSCH. The second is independent closed-loop power control of the sounding reference signal. In this case, the number of closed-loop power control of SRS is 1. When the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured for the first independent closed-loop power control (separateClosedLoop), the SRS uses independent closed-loop power control. SRS closed-loop power control is indicated by a TPC command in DCI format 2_3. This DCI is scrambled using the Transmit Power Control Sounding Reference Signal Radio Network Temporary Identifier (TPC-SRS-RNTI), with each TPC command occupying two bits.

[0052] In the prior art, SRS is used in four situations. The first is for codebook-based PUSCH transmission, where the higher-level parameter usage in the SRS resource set is configured as codebook. The second is for non-codebook-based PUSCH transmission, where the higher-level parameter usage in the SRS resource set is configured as noncodebook. The third is for beam management, where the higher-level parameter usage in the SRS resource set is configured as beam management. The fourth is for downlink CSI acquisition, where the higher-level parameter usage in the SRS resource set is configured as antenna switching.

[0053] When the DCI scheduling PUSCH includes a Sounding Reference Signal Indicator (SRS Resource Indicator, SRI), the PUSCH's open-loop power control parameters and path loss reference signal are derived from the higher-layer parameters associated with the SRI. This SRI indicates the SRS resources within the SRS resource set for codebook-based or non-codebook-based PUSCH transmissions. Therefore, the SRS transmitted by codebook-based or non-codebook-based PUSCH is strongly correlated with the PUSCH, and it is best to share closed-loop power control with the PUSCH. Furthermore, such SRS and PUSCH transmissions typically use narrow beams. The SRS obtained from downlink CSI is not correlated with the PUSCH, typically using wide beams, and it is best not to share closed-loop power control with the PUSCH. Beam-managed SRS is primarily used in the uplink beam management process, which includes three uplink beam management processes: U-1, U-2, and U-3. The beam-managed SRS corresponding to the U-1 process is less correlated with the PUSCH, typically uses wide beams, and does not need to share closed-loop power control with the PUSCH. The SRS corresponding to the beam management of the U-2 and U-3 processes has a strong correlation with the PUSCH, usually uses a narrow beam, and can share closed-loop power control with the PUSCH.

[0054] Before the introduction of partial channel reciprocity, the SRS used to obtain downlink CSI was measured using full uplink and downlink channel reciprocity. However, the SRS used for beam management requires SRS measurement for uplink beam management, as the uplink and downlink channels are not reciprocal. Therefore, these two types of SRS typically do not coexist. After the introduction of partial channel reciprocity, the SRS used to obtain downlink CSI can be measured using partial uplink and downlink channel reciprocity. Due to partial uplink and downlink channel reciprocity, the U-1 process can be replaced by the P-1 process. Furthermore, since base stations have both uplink and downlink capabilities, the SRS used to obtain downlink CSI and the SRS used for beam management corresponding to the U-1 process can share independent closed-loop power control for the sounding reference signal. Therefore, for base stations with both uplink and downlink capabilities, independent closed-loop power control for a single sounding reference signal is sufficient.

[0055] However, in scenarios with an uplink-only TRP, the SRS for acquiring downlink CSI and the SRS for beam management corresponding to the U-1 process will coexist, with the former corresponding to the macro base station TRP and the latter corresponding to at least the uplink-only TRP. These two SRSs require independent closed-loop power control for different sounding reference signals. However, the current configuration and indication for independent closed-loop power control of sounding reference signals only has one, which cannot support both SRSs simultaneously.

[0056] In order to configure and indicate independent closed-loop power control of the two sounding reference signals (SRS), this embodiment provides a wireless communication method that can be executed on a terminal device. Specifically, as shown in FIG2a , the method includes:

[0057] Step S100: Receive configuration information of a sounding reference signal, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals;

[0058] Step S200: Receive an instruction for adjusting the power of the sounding reference signal.

[0059] In order to configure and indicate independent closed-loop power control of the two sounding reference signals (SRS), this embodiment provides a wireless communication method that can be executed by a base station. Specifically, as shown in FIG2a , the method includes:

[0060] Step H100: Sending configuration information of a sounding reference signal, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals;

[0061] Step H200: Send an indication of power adjustment of a sounding reference signal.

[0062] Specifically, the terminal device receives configuration information of the sounding reference signal of the base station, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals; in addition, the terminal device receives an indication of power adjustment of the sounding reference signal sent by the base station. The present invention configures and indicates independent closed-loop power control of at least two sounding reference signals, supports the use of different independent closed-loop power controls for the sounding reference signal for acquiring downlink CSI and the sounding reference signal for beam management of the U-1 process, so that the network side can configure the two sounding reference signals more flexibly and adjust the transmission power of the two sounding reference signals more accurately, and also enables the network side to more efficiently acquire downlink CSI and perform beam management of the U-1 process.

[0063] In some embodiments, capabilities related to closed-loop power control of sounding reference signals are reported, including at least one of the following: support for closed-loop power control of more than three sounding reference signals; the number of closed-loop power control of sounding reference signals supported; support for independent closed-loop power control of at least two sounding reference signals; and the number of independent closed-loop power control of sounding reference signals supported. In this way, the terminal reports its supported capabilities related to closed-loop power control of sounding reference signals to the base station, allowing the base station to appropriately deliver configuration information based on the terminal's capabilities, thereby saving resources.

[0064] The following is a detailed explanation using a practical example. In one implementation, when one independent closed-loop power control of a sounding reference signal (SRS) is added to the configuration information, the total number of closed-loop power controls for SRS is four, of which two are shared with PUSCH and two are independent. As the number of SRS closed-loop power controls increases, the complexity of the user equipment (UE) also increases. Therefore, considering the increase in UE complexity, the UE can report capabilities related to SRS closed-loop power control, as shown in step E100 in Figure 3. The UE capability reporting related to SRS closed-loop power control can be the UE reporting whether it supports four or more SRS closed-loop power controls, and / or the number of SRS closed-loop power controls supported. In addition, the number of SRS closed-loop power controls shared with PUSCH is relatively fixed, so the UE can report capabilities related to independent closed-loop power control of SRS. The UE capability reporting related to the independent closed-loop power control of SRS may be reporting by the UE whether it supports independent closed-loop power control of two or more SRSs and / or the number of independent closed-loop power control of SRSs supported.

[0065] In another implementation, when two independent closed-loop power controls for SRS are added to the configuration information, the total number of closed-loop power controls for SRS is five, of which two are shared with PUSCH and three are independent. The UE capability report related to SRS closed-loop power control may be a UE report on whether it supports five or more than three SRS closed-loop power controls, and / or the number of supported SRS closed-loop power controls. In addition, the number of SRS closed-loop power controls shared with PUSCH is relatively fixed, so the UE can report the capability related to independent closed-loop power control for SRS. The UE capability report related to independent closed-loop power control for SRS may be a UE report on whether it supports three or more than one independent closed-loop power controls for SRS, and / or the number of supported independent closed-loop power controls for SRS.

[0066] In other embodiments, as shown in step E300 in Figure 3, the terminal device receives the configuration information of the sounding reference signal sent by the base station and then receives the downlink control information sent by the base station. In other embodiments, after receiving the downlink control information sent by the base station, the terminal device sends a sounding reference signal SRS to the base station.

[0067] In some embodiments, the configuration information includes a first independent closed-loop power control and a second independent closed-loop power control. The power control information indicates independent closed-loop power control of two sounding reference signals, and the method further includes at least one of the following: when the first high-level parameter sounding reference signal power control adjustment state is not configured, the sounding reference signal shares the first closed-loop power control of the physical uplink shared channel; when the first high-level parameter sounding reference signal power control adjustment state is configured as sameAsFci2, the sounding reference signal shares the second closed-loop power control of the physical uplink shared channel; when the first high-level parameter sounding reference signal power control adjustment state is configured as the first independent closed-loop power control, the sounding reference signal uses the first independent closed-loop power control; when the first high-level parameter sounding reference signal power control adjustment state is configured as the second independent closed-loop power control, the sounding reference signal uses the second independent closed-loop power control. When the terminal device supports closed-loop power control of four sounding reference signals, or supports independent closed-loop power control of two sounding reference signals, the power control information in the configuration information indicates the independent closed-loop power control of the two sounding reference signals. In this way, the base station reasonably sends configuration information related to the independent closed-loop power control of the two sounding reference signals according to the capabilities of the terminal, thereby achieving the purpose of saving resources.

[0068] Specifically, when an independent closed-loop power control of a sounding reference signal (SRS) is added to the configuration information, the high-level parameter sounding reference signal power control adjustment state (srs-PowerControlAdjustmentStates) of the SRS resource set may include the configuration of a second independent closed-loop power control, separateClosedLoop2, to indicate that the SRS in the SRS resource set uses the second independent closed-loop power control, and the separateClosedLoop configured by the high-level parameter srs-PowerControlAdjustmentStates of the SRS resource set is the first independent closed-loop power control. When the high-level parameter srs-PowerControlAdjustmentStates is not configured, the SRS shares the first closed-loop power control of the PUSCH; when the high-level parameter srs-PowerControlAdjustmentStates is configured as sameAsFci2, the SRS shares the second closed-loop power control of the PUSCH. When the high-level parameter srs-PowerControlAdjustmentStates is configured as the first independent closed-loop power control, separateClosedLoop, the SRS uses the first independent closed-loop power control. When the higher-layer parameter srs-PowerControlAdjustmentStates is configured to the second independent closed-loop power control separateClosedLoop2, the SRS uses the second independent closed-loop power control. In another implementation, if the UE supports 4 or more SRS closed-loop power control, or 2 or more SRS independent closed-loop power control (i.e., independent closed-loop power control of SRS), the network will configure the second SRS independent closed-loop power control for the SRS, that is, the higher-layer parameter srs-PowerControlAdjustmentStates can configure the second independent closed-loop power control separateClosedLoop2.

[0069] In some other embodiments, the configuration information includes a first independent closed-loop power control and a second independent closed-loop power control. The power control information indicates independent closed-loop power control of two sounding reference signals, and the configuration information includes a second independent closed-loop configuration, where the second independent closed-loop configuration is used to indicate whether the sounding reference signal can be configured with independent closed-loop power control of a second sounding reference signal. When the terminal device supports closed-loop power control of four sounding reference signals or supports independent closed-loop power control of two sounding reference signals, the second independent closed-loop configuration is configured as at least one of the following: enabled, disabled, and not configured.

[0070] Specifically, a new higher-layer parameter, second-Separate-Closed-Loop, is added to the SRS configuration. This parameter is configured to be enabled, disabled, or not configured, and is used to indicate whether the SRS can configure independent closed-loop power control for the second SRS, such as whether the higher-layer parameter srs-PowerControlAdjustmentStates can configure the second independent closed-loop power control separateClosedLoop2. When the higher-layer parameter second-Separate-Closed-Loop is configured to be disabled or not configured, the higher-layer parameter srs-PowerControlAdjustmentStates can be not configured or configured with sameAsFci2 and separateClosedLoop, but cannot be configured with the second independent closed-loop power control separateClosedLoop2. When the higher-layer parameter second-Separate-Closed-Loop is configured to be enabled, the higher-layer parameter srs-PowerControlAdjustmentStates can be not configured or configured with sameAsFci2, separateClosedLoop, and the second independent closed-loop power control separateClosedLoop2. In other implementations, if the UE does not support closed-loop power control of 4 or more SRSs, or independent closed-loop power control of 2 or more SRSs, the higher-layer parameter second-Separate-Closed-Loop is configured to disable or not configured; if the UE supports closed-loop power control of 4 or more SRSs, or independent closed-loop power control of 2 or more SRSs, the higher-layer parameter second-Separate-Closed-Loop is configured to enable, disable, or not configured.

[0071] In some other embodiments, the configuration information includes a first independent closed-loop power control and a second independent closed-loop power control. The power control information indicates independent closed-loop power control of two sounding reference signals, and the configuration information includes an independent closed-loop power control number parameter. A new high-level parameter (independent closed-loop power control number parameter number-Separate-Closed-Loop) is added to the SRS configuration. This parameter is configured to 2 or not configured to indicate whether the SRS can be configured with independent closed-loop power control of the second SRS, such as indicating whether the high-level parameter srs-PowerControlAdjustmentStates can configure the second independent closed-loop power control separateClosedLoop2. When the higher-layer parameter number-Separate-Closed-Loop is not configured, the higher-layer parameter srs-PowerControlAdjustmentStates can be not configured or configured with sameAsFci2 and the first independent closed-loop power control separateClosedLoop, but the second independent closed-loop power control separateClosedLoop2 cannot be configured; when the higher-layer parameter number-Separate-Closed-Loop is configured to 2, the higher-layer parameter srs-PowerControlAdjustmentStates can be not configured or configured with sameAsFci2, the first independent closed-loop power control separateClosedLoop, and the second independent closed-loop power control separateClosedLoop2. In another embodiment, if the UE does not support 4 or more SRS closed-loop power control, or 2 or more SRS independent closed-loop power control, the higher-level parameter number-Separate-Closed-Loop is not configured; if the UE supports 4 or more SRS closed-loop power control, or 2 or more SRS independent closed-loop power control, the higher-level parameter number-Separate-Closed-Loop is not configured or is configured as 2.

[0072] In some embodiments, the configuration information includes a first independent closed-loop power control, a second independent closed-loop power control, and a third independent closed-loop power control. The power control information indicates independent closed-loop power control of three sounding reference signals, and the method further includes at least one of the following: when the second higher-layer parameter sounding reference signal power control adjustment state is not configured, the sounding reference signal shares the first closed-loop power control of the physical uplink shared channel; when the second higher-layer parameter sounding reference signal power control adjustment state is configured as sameAsFci2, the sounding reference signal shares the second closed-loop power control of the physical uplink shared channel; when the second higher-layer parameter sounding reference signal power control adjustment state is configured as the first independent closed-loop power control, the sounding reference signal uses the first independent closed-loop power control; when the second higher-layer parameter sounding reference signal power control adjustment state is configured as the second independent closed-loop power control, the sounding reference signal uses the second independent closed-loop power control; when the second higher-layer parameter sounding reference signal power control adjustment state is configured as the third independent closed-loop power control, the sounding reference signal uses the third independent closed-loop power control. When the terminal device supports closed-loop power control of 5 sounding reference signals, or supports independent closed-loop power control of three sounding reference signals, the power control information in the configuration information indicates the independent closed-loop power control of the three sounding reference signals. In this way, the base station reasonably sends configuration information related to the independent closed-loop power control of the three sounding reference signals according to the capabilities of the terminal, thereby achieving the purpose of saving resources.

[0073] Specifically, the second independent closed-loop power control separateClosedLoop2 and the third independent closed-loop power control separateClosedLoop3 are newly configured in the higher-layer parameter sounding reference signal power control adjustment state srs-PowerControlAdjustmentStates of the SRS resource set, indicating that the SRS in the SRS resource set uses the independent closed-loop power control of the second and third SRS, respectively. When the higher-layer parameter srs-PowerControlAdjustmentStates is not configured, the SRS shares the first closed-loop power control of the PUSCH; when the higher-layer parameter srs-PowerControlAdjustmentStates is configured as sameAsFci2, the SRS shares the second closed-loop power control of the PUSCH. When the higher-layer parameter srs-PowerControlAdjustmentStates is configured as the first independent closed-loop power control separateClosedLoop, the SRS uses the independent closed-loop power control of the first SRS. When the higher-layer parameter srs-PowerControlAdjustmentStates is configured as the second independent closed-loop power control separateClosedLoop2, the SRS uses the independent closed-loop power control of the second SRS. When the higher-layer parameter srs-PowerControlAdjustmentStates is configured as the third independent closed-loop power control separateClosedLoop3, SRS uses the independent closed-loop power control of the third SRS. In other implementations, if the UE supports 5 or more SRS closed-loop power controls, or 3 or more SRS independent closed-loop power controls, the network will configure the second and third SRS independent closed-loop power controls for the SRS. In other implementations, if the UE supports independent closed-loop power controls for 2 SRSs, the network will configure the second SRS independent closed-loop power control for the SRS, but will not configure the third closed-loop power control; if the UE supports independent closed-loop power controls for 3 SRSs, the network will configure the second and third SRS independent closed-loop power controls for the SRS.

[0074] In some other embodiments, the configuration information includes a first independent closed-loop power control, a second independent closed-loop power control, and a third independent closed-loop power control. The power control information indicates independent closed-loop power control of three sounding reference signals, and the configuration information includes a second independent closed-loop configuration and / or a third independent closed-loop configuration, the second independent closed-loop configuration is used to indicate whether the sounding reference signal can be configured with independent closed-loop power control of the second sounding reference signal, and the third independent closed-loop configuration is used to indicate whether the sounding reference signal can be configured with independent closed-loop power control of the third sounding reference signal. When the terminal device supports closed-loop power control of 5 sounding reference signals, or supports independent closed-loop power control of three sounding reference signals, the second independent closed-loop configuration is configured as at least one of the following: enabled, disabled, and not configured, and the third independent closed-loop configuration is configured as at least one of the following: enabled, disabled, and not configured.

[0075] Specifically, a new high-level parameter second independent closed-loop configuration second-Separate-Closed-Loop is added to the SRS configuration. This parameter is configured to enable, disable or not configured, and is used to indicate whether the SRS can configure the independent closed-loop power control of the second SRS, such as whether the high-level parameter srs-PowerControlAdjustmentStates can configure separateClosedLoop2; the SRS configuration includes a high-level parameter third independent closed-loop configuration third-Separate-Closed-Loop. This parameter is configured to enable, disable or not configured, and is used to indicate whether the SRS can configure the independent closed-loop power control of the third SRS, such as whether the high-level parameter srs-PowerControlAdjustmentStates can configure the third independent closed-loop power control separateClosedLoop3. When the higher-layer parameter second-Separate-Closed-Loop is configured to disable or not configured, the higher-layer parameter srs-PowerControlAdjustmentStates cannot be used to configure the second independent closed-loop power control separateClosedLoop2. When the higher-layer parameter second-Separate-Closed-Loop is configured to enable, the higher-layer parameter srs-PowerControlAdjustmentStates can be used to configure the second independent closed-loop power control separateClosedLoop2. When the higher-layer parameter third-Separate-Closed-Loop is configured to disable or not configured, the higher-layer parameter srs-PowerControlAdjustmentStates cannot be used to configure the third independent closed-loop power control separateClosedLoop3. When the higher-layer parameter third-Separate-Closed-Loop is configured to enable, the higher-layer parameter srs-PowerControlAdjustmentStates can be used to configure the third independent closed-loop power control separateClosedLoop3.In other implementations, if the UE does not support 5 or more SRS closed-loop power control, or 2 or more SRS independent closed-loop power control, the higher-level parameters second independent closed-loop configuration second-Separate-Closed-Loop and the third independent closed-loop configuration third-Separate-Closed-Loop can be configured to disable or not configured; if the UE supports 5 or more SRS closed-loop power control, or 2 or more SRS independent closed-loop power control, the higher-level parameters second independent closed-loop configuration second-Separate-Closed-Loop and the third independent closed-loop configuration third-Separate-Closed-Loop can be configured to enable or disable or not configured.

[0076] In some other embodiments, the configuration information includes a first independent closed-loop power control, a second independent closed-loop power control, and a third independent closed-loop power control. The power control information indicates independent closed-loop power control of three sounding reference signals, and the SRS configuration includes a higher-layer parameter (independent closed-loop power control number parameter number-Separate-Closed-Loop), which is configured to 2 or 3 or not configured, and is used to indicate whether the SRS can be configured with a second independent SRS closed-loop power control, such as indicating whether the higher-layer parameter srs-PowerControlAdjustmentStates can configure the second independent closed-loop power control separateClosedLoop2 and / or the third independent closed-loop power control separateClosedLoop3. When the higher-layer parameter number-Separate-Closed-Loop is not configured, the higher-layer parameter srs-PowerControlAdjustmentStates can be not configured or configured with sameAsFci2. The first independent closed-loop power control separateClosedLoop cannot be configured with the second independent closed-loop power control separateClosedLoop2 or the third independent closed-loop power control separateClosedLoop3. When the higher-layer parameter number-Separate-Closed-Loop is set to 2, the higher-layer parameter srs-PowerControlAdjustmentStates can be not configured or configured with sameAsFci2. , the first independent closed-loop power control separateClosedLoop, the second independent closed-loop power control separateClosedLoop2, the third independent closed-loop power control separateClosedLoop3 cannot be configured; when the higher-level parameter number-Separate-Closed-Loop is configured to 3, the higher-level parameter srs-PowerControlAdjustmentStates can be not configured or configured with sameAsFci2, the first independent closed-loop power control separateClosedLoop, the second independent closed-loop power control separateClosedLoop2, and the third independent closed-loop power control separateClosedLoop3.In some other implementations, if the UE does not support closed-loop power control of 5 or more SRSs, or independent closed-loop power control of 2 or more SRSs, the higher-layer parameter number-Separate-Closed-Loop is not configured; if the UE supports closed-loop power control of 5 or more SRSs, or independent closed-loop power control of 2 or more SRSs, the higher-layer parameter number-Separate-Closed-Loop is configured as 2 or 3, or is not configured. In some other implementations, if the UE supports independent closed-loop power control of 2 SRSs, the higher-layer parameter number of independent closed-loop power control parameter number-Separate-Closed-Loop is configured as 2 or is not configured; if the UE supports independent closed-loop power control of 3 SRSs, the higher-layer parameter number of independent closed-loop power control parameter number-Separate-Closed-Loop is configured as 2 or 3, or is not configured.

[0077] In some embodiments, the configuration information includes a first independent closed-loop power control and a second independent closed-loop power control. The power control information indicates independent closed-loop power control of two sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes the following field: a first closed-loop indicator. When the first closed-loop indicator is a first value, the first closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal; when the first closed-loop indicator is a second value, the first closed-loop indicator indicates independent closed-loop power control of the second sounding reference signal.

[0078] Specifically, DCI format 2_3 includes a first closed-loop indicator area, which occupies 1 bit and is used to indicate the index of independent closed-loop power control of SRS.

[0079] When the higher-layer parameter srs-PowerControlAdjustmentStates is not configured as the second independent closed-loop power control separateClosedLoop2 in any SRS resource set;

[0080] When there is no SRS power control configuration for the second SRS independent closed-loop power control, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0081] SRS request (SRS request), 0 or 2 bits.

[0082] TPC command (TPC command) #1, TPC command #2, ..., TPC command #N.

[0083] When there is no SRS power control configuration for the second SRS independent closed-loop power control, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0084] SRS request, 0 or 2 bits.

[0085] TPC command, 2 bits.

[0086] When SRS power control is configured as independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type A DCI format 2_3, the following areas are present:

[0087] SRS request, 0 or 2 bits.

[0088] First closed loop indicator (Closed loop indicator), 1 bit.

[0089] TPC command #1, TPC command #2, ..., TPC command #N.

[0090] When SRS power control is configured as independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type B DCI format 2_3, the following areas are present:

[0091] SRS request, 0 or 2 bits.

[0092] First closed-loop indicator, 1 bit.

[0093] TPC command, 2 bits.

[0094] The independent closed-loop power control of the second SRS without any SRS power control configuration may be that the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as disable or not configured.

[0095] The independent closed-loop power control of the second SRS with SRS power control configuration can be supported by UE capabilities, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the first independent closed-loop power control separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as enable.

[0096] The transmission power control TPC command is applied to each uplink carrier separately, indicating the independent closed-loop power control modulation amount of the SRS, as shown in Table 1.

[0097] Table 1

[0098] As an example, the content of the first closed-loop indicator is shown in Table 2:

[0099] Table 2

[0100] When the value of the first closed-loop indicator region is a first value (e.g., 0), the power adjustment amount indicated by the TPC command region is applied to the SRS configured for independent closed-loop power control of the first SRS; when the value of the first closed-loop indicator region is a second value (e.g., 1), the power adjustment amount indicated by the TPC command region is applied to the SRS configured for independent closed-loop power control of the second SRS. In practice, the first and second values ​​can be interchanged and are not specifically limited. This method can adjust the independent closed-loop power of the two SRSs separately.

[0101] In some other embodiments, the configuration information includes a first independent closed-loop power control and a second independent closed-loop power control. The power control information indicates independent closed-loop power control of two sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes the following area: a second closed-loop indicator. When the second closed-loop indicator is a third value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal; when the second closed-loop indicator is a fourth value, the second closed-loop indicator indicates independent closed-loop power control of the second sounding reference signal; when the second closed-loop indicator is a fifth value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal and independent closed-loop power control of the second sounding reference signal; when the second closed-loop indicator is a sixth value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal and independent closed-loop power control of the second sounding reference signal, or is reserved.

[0102] Specifically, DCI format 2_3 includes a second closed-loop indicator area, which occupies 2 bits and is used to indicate the index of independent closed-loop power control of SRS.

[0103] When there is no SRS power control configuration for the second SRS independent closed-loop power control, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0104] SRS request, 0 or 2 bits.

[0105] TPC command #1, TPC command #2, ..., TPC command #N.

[0106] When there is no SRS power control configuration for the second SRS independent closed-loop power control, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0107] SRS request, 0 or 2 bits.

[0108] TPC command, 2 bits.

[0109] When SRS power control is configured as independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type A DCI format 2_3, the following areas are present:

[0110] SRS request, 0 or 2 bits.

[0111] Second closed-loop indicator, 2 bits.

[0112] TPC command #1, TPC command #2, ..., TPC command #N.

[0113] When SRS power control is configured as independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type B DCI format 2_3, the following areas are present:

[0114] SRS request, 0 or 2 bits.

[0115] Second closed-loop indicator, 2 bits.

[0116] TPC command, 2 bits.

[0117] No SRS power control is configured. The independent closed-loop power control of the second SRS may be that the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as disable or not configured.

[0118] The independent closed-loop power control of the second SRS with SRS power control configuration can be supported by UE capabilities, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as enable.

[0119] The TPC command is applied to each uplink carrier separately, indicating the independent closed-loop power control modulation amount of the SRS, as shown in Table 1.

[0120] The contents of the second closed-loop indicator are shown in Table 3:

[0121] Table 3

[0122] When the value of the second closed-loop indicator area is the third value (for example, 0), the power adjustment amount indicated by the TPC command area is applied to the SRS configured as the first SRS with independent closed-loop power control; when the value of the second closed-loop indicator area is the fourth value (for example, 1), the power adjustment amount indicated by the TPC command area is applied to the SRS configured as the second SRS with independent closed-loop power control; when the value of the second closed-loop indicator area is the fifth value (for example, 2), the power adjustment amount indicated by the TPC command area is applied to the SRS configured as the first SRS with independent closed-loop power control and the SRS configured as the second SRS with independent closed-loop power control; when the value of the second closed-loop indicator area is the sixth value (for example, 3), the power adjustment amount indicated by the TPC command area is applied to the SRS configured as the first SRS with independent closed-loop power control and the SRS configured as the second SRS with independent closed-loop power control, or is retained; it is worth noting that the third value, the fourth value, the fifth value, and the sixth value are not limited to the above examples and are not specifically restricted. This method can adjust the independent closed-loop power of two SRSs simultaneously.

[0123] In some other embodiments, the configuration information includes a first independent closed-loop power control and a second independent closed-loop power control. The power control information indicates independent closed-loop power control of two sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes the following fields: a first transmission power control command and a second transmission power control command. The first transmission power control command is used to indicate independent closed-loop power control of the first sounding reference signal; the second transmission power control command is used to indicate independent closed-loop power control of the second sounding reference signal.

[0124] Specifically, in one implementation, a first transmission power control command (i.e., TPC command) area already exists in DCI format 2_3, and DCI format 2_3 includes a second transmission power control command (i.e., second TPC command) area, which occupies 2 bits and is used to indicate the independent closed-loop power control adjustment amount of the second SRS.

[0125] When there is no SRS power control configuration for the second SRS independent closed-loop power control, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0126] SRS request, 0 or 2 bits.

[0127] First transmission power control command #1, first transmission power control command #2, ..., first transmission power control command #N.

[0128] When there is no SRS power control configuration for the second SRS independent closed-loop power control, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0129] SRS request, 0 or 2 bits.

[0130] First transmission power control command, 2 bits.

[0131] When SRS power control is configured with independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type A DCI format 2_3, the following areas are present:

[0132] SRS request, 0 or 2 bits.

[0133] First transmission power control command #1, first transmission power control command #2, ..., first transmission power control command #N.

[0134] Second transmission power control command #1, second transmission power control command #2, ..., second transmission power control command #N.

[0135] When SRS power control is configured with independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type B DCI format 2_3, the following areas are present:

[0136] SRS request, 0 or 2 bits.

[0137] First transmission power control command, 2 bits.

[0138] Second transmission power control command, 2 bits.

[0139] No SRS power control is configured. The independent closed-loop power control of the second SRS may be that the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as disable or not configured.

[0140] The independent closed-loop power control of the second SRS with SRS power control configuration may be supported by the UE capability, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as enable.

[0141] The first transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the first SRS, as shown in Table 1.

[0142] The second transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the second SRS, as shown in Table 1.

[0143] Specifically, in another implementation, a first transmission power control command (i.e., TPC command) area already exists in DCI format 2_3, and DCI format 2_3 includes a second transmission power control command (i.e., second TPC command) area, which occupies 2 bits and is used to indicate the independent closed-loop power control adjustment amount of the second SRS.

[0144] When there is no SRS power control configuration for the second SRS independent closed-loop power control, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0145] SRS request (SRS request), 0 or 2 bits.

[0146] First transmission power control command (TPC command) #1, first transmission power control command #2, ..., first transmission power control command #N.

[0147] When there is no SRS power control configuration for the second SRS independent closed-loop power control, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0148] SRS request, 0 or 2 bits.

[0149] First transmission power control command, 2 bits.

[0150] When SRS power control is configured with independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type A DCI format 2_3, the following areas are present:

[0151] SRS request, 0 or 2 bits.

[0152] First transmission power control command #1, second transmission power control command #1, first transmission power control command #2, second transmission power control command #2, ..., first transmission power control command #N, second transmission power control command #N.

[0153] When SRS power control is configured with independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type B DCI format 2_3, the following areas are present:

[0154] SRS request, 0 or 2 bits.

[0155] First transmission power control command, 2 bits.

[0156] Second transmission power control command, 2 bits.

[0157] No SRS power control is configured. The independent closed-loop power control of the second SRS may be that the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as disable or not configured.

[0158] The independent closed-loop power control of the second SRS with SRS power control configuration can be supported by UE capabilities, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as enable.

[0159] The first transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the first SRS, as shown in Table 1.

[0160] The second transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the second SRS, as shown in Table 1.

[0161] This method can adjust the independent closed-loop power of two SRSs simultaneously.

[0162] In some other embodiments, the configuration information includes a first independent closed-loop power control and a second independent closed-loop power control. The power control information indicates independent closed-loop power control of two sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes at least one of the following: first downlink control information for scrambling a first transmission power control sounding reference signal (RSRS) and a radio network temporary identifier (RTI), and second downlink control information for scrambling a second transmission power control sounding reference signal (RSRS). The first downlink control information is used to indicate independent closed-loop power control of the first sounding reference signal, and the second downlink control information is used to indicate independent closed-loop power control of the second sounding reference signal.

[0163] Specifically, a new scrambling scheme for the second downlink control information (DCI) format 2_3, such as TPC-SRS2-RNTI, is added to distinguish independent closed-loop power control for the SRS. When no SRS power control is configured for independent closed-loop power control of the second SRS, and SRS power control does not share closed-loop power control with PUSCH, the UE only receives the first downlink control information (DCI) format 2_3 scrambled by TPC-SRS-RNTI. The TPC command in this first downlink control information (DCI) indicates the power adjustment amount for independent closed-loop power control of the SRS, as shown in Table 1.

[0164] When SRS power control is configured with independent closed-loop power control for the second SRS, and SRS power control does not share closed-loop power control with PUSCH, the UE receives DCI format 2_3 scrambled by TPC-SRS-RNTI or TPC-SRS2-RNTI. When DCI format 2_3 is scrambled by TPC-SRS-RNTI, the TPC command in this first downlink control information (DCI) indicates the power adjustment amount for independent closed-loop power control of the first SRS, as shown in Table 1. When DCI format 2_3 is scrambled by TPC-SRS2-RNTI, the TPC command in this second downlink control information (DCI) indicates the power adjustment amount for independent closed-loop power control of the second SRS, as shown in Table 1.

[0165] The specific area of ​​DCI format 2_3 is the same as that in the existing standard.

[0166] This method implicitly distinguishes the independent closed-loop power control of SRS through different RNTIs, does not require changes to the existing DCI format 2_3, and can save DCI overhead.

[0167] The independent closed-loop power control of the second SRS without any SRS power control configuration may be that the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as disable or not configured.

[0168] The independent closed-loop power control of the second SRS with SRS power control configuration can be supported by UE capabilities, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2, and / or the higher-layer parameter second-Separate-Closed-Loop is configured as enable.

[0169] In some other embodiments, the configuration information includes a first independent closed-loop power control and a second independent closed-loop power control. The power control information indicates independent closed-loop power control of two sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes the following fields: a first transmission power control command; the media access control control unit includes at least one of the following fields: a fifth transmission power control command. The first transmission power control command is used to indicate independent closed-loop power control of the first sounding reference signal; the fifth transmission power control command is used to indicate independent closed-loop power control of the second sounding reference signal. The media access control control unit including the fifth transmission power control command includes at least one of the following fields: a cell identifier field, a fractional bandwidth identifier field, and a transmission power control command field, wherein the transmission power control command field is used to indicate independent closed-loop power control of the second sounding reference signal. The second independent closed-loop power control includes a power adjustment value, the application time of which is located after a predefined time unit of the corresponding physical uplink control channel carrying the acknowledgment character.

[0170] Specifically, the independent closed-loop power control of the first SRS is indicated by the first transmission power control command (i.e., the TPC command in DCI format 2_3), and the independent closed-loop power control of the second SRS is indicated by the fifth transmission power control command (i.e., the TPC command in the media access control element (MAC CE)).

[0171] The MAC CE carrying the TPC command can be at least one of the following:

[0172] New TPC command MAC CE,

[0173] Multiplexing indicates the uplink path loss MAC CE,

[0174] Multiplexing SRS activates MAC CE.

[0175] These MAC CEs contain at least one of the following fields: a cell ID field, a BWP ID field, and a fifth transmission power control command field, occupying 5 bits, 2 bits, 2 bits, and 1 bit, respectively. The fifth transmission power control command field indicates the adjustment amount for independent closed-loop power control of the second SRS, as shown in Table 1. Table 4 below is an example of the fifth transmission control command MAC CE.

[0176] Table 4: MAC CE of the fifth transmission control command

[0177] As shown in Figure 4, the application time of the power adjustment amount of the TPC command carried by these MAC CEs is the predefined time unit (such as KSRS time units) of the corresponding PUCCH carrying the acknowledgment character ACK, and the SRS resource must be the first SRS resource in the SRS resource set. In other words, the time unit of the first SRS resource in the SRS resource set is at least KSRS away from the time unit of the PUCCH carrying the acknowledgment character ACK. If the time unit is a time slot, the time slot where the PUCCH carrying the acknowledgment character ACK is located and the time slot where the first SRS in the SRS resource set is located are at least KSRS time slots away. If the time unit is a symbol, the time slot between the last symbol of the PUCCH carrying the acknowledgment character ACK and the first symbol of the first SRS in the SRS resource set is at least KSRS symbols away.

[0178] This method implicitly distinguishes the independent closed-loop power control of SRS through different control information, does not require changes to the existing DCI format 2_3, and can save DCI overhead.

[0179] In some other embodiments, the configuration information includes a first independent closed-loop power control, a second independent closed-loop power control, and a third independent closed-loop power control. The power control information indicates independent closed-loop power control of three sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes the following area: a third closed-loop indicator. When the third closed-loop indicator is a seventh value, the third closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal; when the third closed-loop indicator is an eighth value, the third closed-loop indicator indicates independent closed-loop power control of the second sounding reference signal; when the third closed-loop indicator is a ninth value, the third closed-loop indicator indicates independent closed-loop power control of the third sounding reference signal; and when the third closed-loop indicator is a tenth value, the third closed-loop indicator indicates any two of the independent closed-loop power control of the first sounding reference signal, the independent closed-loop power control of the second sounding reference signal, and the independent closed-loop power control of the third sounding reference signal, or retains the third closed-loop indicator.

[0180] Specifically, DCI format 2_3 includes a third closed-loop indicator area, which occupies 2 bits and is used to indicate the index of independent closed-loop power control of SRS.

[0181] When there is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0182] SRS request, 0 or 2 bits.

[0183] TPC command #1, TPC command #2, ..., TPC command #N.

[0184] When there is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0185] SRS request, 0 or 2 bits.

[0186] TPC command, 2 bits.

[0187] When there is no SRS power control configuration for the independent closed-loop power control of the third SRS, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0188] SRS request, 0 or 2 bits.

[0189] The third closed-loop indicator is 1 bit.

[0190] TPC command #1, TPC command #2, ..., TPC command #N.

[0191] When there is no SRS power control configuration for the independent closed-loop power control of the third SRS, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0192] SRS request, 0 or 2 bits.

[0193] The third closed-loop indicator is 1 bit.

[0194] TPC command, 2 bits.

[0195] When SRS power control is configured with independent closed-loop power control for the third SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type A DCI format 2_3, the following areas are present:

[0196] SRS request, 0 or 2 bits.

[0197] The third closed-loop indicator is 2 bits.

[0198] TPC command #1, TPC command #2, ..., TPC command #N.

[0199] When SRS power control is configured with independent closed-loop power control for the third SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type B DCI format 2_3, the following areas are present:

[0200] SRS request, 0 or 2 bits.

[0201] The third closed-loop indicator is 2 bits.

[0202] TPC command, 2 bits.

[0203] There is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, which may be because the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2 and the third independent closed-loop power control separateClosedLoop3.

[0204] There is SRS power control configuration for independent closed-loop power control of the second and third SRSs, which may be supported by UE capabilities, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2 and the third independent closed-loop power control separateClosedLoop3.

[0205] There is no SRS power control configuration for the independent closed-loop power control of the third SRS, which may be because the UE capability does not support it and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the third independent closed-loop power control separateClosedLoop3.

[0206] The independent closed-loop power control of the third SRS is configured with SRS power control, which may be supported by UE capabilities and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the third independent closed-loop power control separateClosedLoop3.

[0207] The TPC command is applied to each uplink carrier separately, indicating the independent closed-loop power control modulation amount of the SRS, as shown in Table 1.

[0208] The content of the 1-bit third closed-loop indicator is shown in Table 2.

[0209] The content of the 2-bit third closed-loop indicator is shown in Table 5:

[0210] Table 5

[0211] Where i and j can both be equal to 1, 2, or 3, but they cannot be equal.

[0212] When the value of the third closed-loop indicator field is the seventh value (e.g., 0), the power adjustment amount indicated by the TPC command field is applied to the independent closed-loop power control configured for the first SRS; when the value of the third closed-loop indicator field is the eighth value (e.g., 1), the power adjustment amount indicated by the TPC command field is applied to the independent closed-loop power control configured for the second SRS; when the value of the third closed-loop indicator field is the ninth value (e.g., 2), the power adjustment amount indicated by the TPC command field is applied to the independent closed-loop power control configured for the third SRS; and when the value of the third closed-loop indicator field is the tenth value (e.g., 3), the power adjustment amount indicated by the TPC command field is applied to the independent closed-loop power control configured for the i-th SRS and the independent closed-loop power control configured for the j-th SRS. This method can adjust the independent closed-loop power of up to three SRSs separately.

[0213] In some other embodiments, the configuration information includes a first independent closed-loop power control, a second independent closed-loop power control, and a third independent closed-loop power control. The power control information indicates independent closed-loop power control of three sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes the following areas: a first transmission power control command, a third transmission power control command, and a fourth transmission power control command. The first transmission power control command is used to indicate independent closed-loop power control of the first sounding reference signal; the third transmission power control command is used to indicate independent closed-loop power control of the second sounding reference signal; and the fourth transmission power control command is used to indicate independent closed-loop power control of the third sounding reference signal.

[0214] Specifically, in one implementation, there is a first transmission power control command (i.e., TPC command) in DCI format 2_3, and DCI format 2_3 includes a third transmission power control command (i.e., second TPC command) and a fourth transmission power control command (i.e., third TPC command), which occupy 2 bits respectively and are used to indicate the indexes of the independent second and third SRS closed-loop power controls, respectively.

[0215] When there is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0216] SRS request, 0 or 2 bits.

[0217] First transmission power control command #1, first transmission power control command #2, ..., first transmission power control command #N.

[0218] When there is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0219] SRS request, 0 or 2 bits.

[0220] First transmission power control command, 2 bits.

[0221] When there is no SRS power control configuration for the independent closed-loop power control of the third SRS, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0222] SRS request, 0 or 2 bits.

[0223] First transmission power control command #1, first transmission power control command #2, ..., first transmission power control command #N.

[0224] third transmission power control command #1, third transmission power control command #2, ..., third transmission power control command #N.

[0225] When there is no SRS power control configuration for the independent closed-loop power control of the third SRS, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0226] SRS request, 0 or 2 bits.

[0227] First transmission power control command, 2 bits.

[0228] The third transmission power control command is 2 bits.

[0229] When SRS power control is configured with independent closed-loop power control for the third SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type A DCI format 2_3, the following areas are present:

[0230] SRS request, 0 or 2 bits.

[0231] First transmission power control command #1, first transmission power control command #2, ..., first transmission power control command #N.

[0232] third transmission power control command #1, third transmission power control command #2, ..., third transmission power control command #N.

[0233] Fourth transmission power control command #1, fourth transmission power control command #2, ..., fourth transmission power control command #N.

[0234] When SRS power control is configured with independent closed-loop power control for the third SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type B DCI format 2_3, the following areas are present:

[0235] SRS request, 0 or 2 bits.

[0236] First transmission power control command, 2 bits.

[0237] The third transmission power control command is 2 bits.

[0238] Fourth transmission power control command, 2 bits.

[0239] There is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, which may be because the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2 and the third independent closed-loop power control separateClosedLoop3.

[0240] There is SRS power control configuration for independent closed-loop power control of the second and third SRSs, which may be supported by UE capabilities, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2 and the third independent closed-loop power control separateClosedLoop3.

[0241] There is no SRS power control configuration for the independent closed-loop power control of the third SRS, which may be because the UE capability does not support it and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the third independent closed-loop power control separateClosedLoop3.

[0242] The independent closed-loop power control of the third SRS is configured with SRS power control, which may be supported by UE capabilities and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the third independent closed-loop power control separateClosedLoop3.

[0243] The first transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the first SRS, as shown in Table 1.

[0244] The third transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the second SRS, as shown in Table 1.

[0245] The fourth transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the third SRS, as shown in Table 1.

[0246] In another implementation, there is a first transmission power control command (i.e., TPC command) in DCI format 2_3, and DCI format 2_3 includes a third transmission power control command (i.e., second TPC command) and a fourth transmission power control command (i.e., third TPC command), which occupy 2 bits respectively and are used to indicate the indexes of the independent second and third SRS closed-loop power controls, respectively.

[0247] When there is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0248] SRS request, 0 or 2 bits.

[0249] First transmission power control command #1, first transmission power control command #2, ..., first transmission power control command #N.

[0250] When there is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0251] SRS request, 0 or 2 bits.

[0252] First transmission power control command, 2 bits.

[0253] When there is no SRS power control configuration for the independent closed-loop power control of the third SRS, and the SRS power control does not share closed-loop power control with the PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0254] SRS request, 0 or 2 bits.

[0255] First transmission power control command #1, third transmission power control command #1, ..., first transmission power control command #N, fourth transmission power control command #N.

[0256] When there is no SRS power control configuration for the independent closed-loop power control of the third SRS, and the SRS power control does not share closed-loop power control with the PUSCH, for the type B DCI format 2_3 block, there are the following areas:

[0257] SRS request, 0 or 2 bits.

[0258] First transmission power control command, 2 bits.

[0259] The third transmission power control command is 2 bits.

[0260] When SRS power control is configured with independent closed-loop power control for the third SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type A DCI format 2_3, the following areas are present:

[0261] SRS request, 0 or 2 bits.

[0262] First transmission power control command #1, third transmission power control command #1, fourth transmission power control command #1, ..., first transmission power control command #N, third transmission power control command #N, fourth transmission power control command #N.

[0263] When SRS power control is configured with independent closed-loop power control for the third SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type B DCI format 2_3, the following areas are present:

[0264] SRS request, 0 or 2 bits.

[0265] First transmission power control command, 2 bits.

[0266] The third transmission power control command is 2 bits.

[0267] Fourth transmission power control command, 2 bits.

[0268] There is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, which may be because the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2 and the third independent closed-loop power control separateClosedLoop3.

[0269] There is SRS power control configuration for independent closed-loop power control of the second and third SRSs, which may be supported by UE capabilities, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2 and the third independent closed-loop power control separateClosedLoop3.

[0270] There is no SRS power control configuration for the independent closed-loop power control of the third SRS, which may be because the UE capability does not support it and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the third independent closed-loop power control separateClosedLoop3.

[0271] The independent closed-loop power control of the third SRS is configured with SRS power control, which may be supported by UE capabilities and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the third independent closed-loop power control separateClosedLoop3.

[0272] The first transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the first SRS, as shown in Table 1.

[0273] The third transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the second SRS, as shown in Table 1.

[0274] The fourth transmission power control command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the third SRS, as shown in Table 1.

[0275] This method can adjust the independent closed-loop power of up to three SRSs simultaneously.

[0276] In some other embodiments, the configuration information includes a first independent closed-loop power control, a second independent closed-loop power control, and a third independent closed-loop power control. The power control information indicates independent closed-loop power control of three sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes at least one of the following: first downlink control information scrambled by a first transmission power control sounding reference signal radio network temporary identifier, second downlink control information scrambled by a second transmission power control sounding reference signal radio network temporary identifier, and third downlink control information scrambled by a third transmission power control sounding reference signal radio network temporary identifier. The first downlink control information is used to indicate the first independent closed-loop power control, the second downlink control information is used to indicate the second independent closed-loop power control, and the third downlink control information is used to indicate the third independent closed-loop power control.

[0277] Specifically, a new scrambling method for DCI format 2_3 is added, such as a second transmission power control sounding reference signal wireless network temporary identifier TPC-SRS2-RNTI and a third transmission power control sounding reference signal wireless network temporary identifier TPC-SRS3-RNTI, which are used to distinguish the independent closed-loop power control of SRS.

[0278] When there is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, the UE will only receive the first downlink control information DCI format 2_3 scrambled by the first transmission power control sounding reference signal radio network temporary identifier TPC-SRS-RNTI. The TPC command in this first downlink control information DCI indicates the power adjustment amount of the independent closed-loop power control of the SRS, as shown in Table 1.

[0279] When no SRS power control is configured for independent closed-loop power control of the third SRS, the UE receives DCI format 2_3 scrambled by the first transmission power control sounding reference signal radio network temporary identifier TPC-SRS-RNTI or the second transmission power control sounding reference signal radio network temporary identifier TPC-SRS2-RNTI. When DCI format 2_3 is scrambled by the first transmission power control sounding reference signal radio network temporary identifier TPC-SRS-RNTI, the TPC command in this first downlink control information DCI indicates the power adjustment amount for independent closed-loop power control of the first SRS, as shown in Table 1. When the second downlink control information DCI format 2_3 is scrambled by the second transmission power control sounding reference signal radio network temporary identifier TPC-SRS2-RNTI, the TPC command in this second downlink control information DCI indicates the power adjustment amount for independent closed-loop power control of the second SRS, as shown in Table 1.

[0280] When SRS power control is configured for independent closed-loop power control of the third SRS, the UE receives DCI format 2_3 scrambled by the first TPC-SRS-RNTI, the second TPC-SRS2-RNTI, or the third TPC-SRS3-RNTI. When the first downlink control information DCI format 2_3 is scrambled by the first TPC-SRS-RNTI, the TPC command in this first downlink control information DCI indicates the power adjustment amount for independent closed-loop power control of the first SRS, as shown in Table 1. When the DCI format 2_3 is scrambled by the second TPC-SRS2-RNTI, the TPC command in this second downlink control information DCI indicates the power adjustment amount for independent closed-loop power control of the second SRS, as shown in Table 1. When DCI format 2_3 is scrambled by the third transmission power control sounding reference signal radio network temporary identifier TPC-SRS3-RNTI, the TPC command in the third downlink control information DCI indicates the power adjustment amount of the independent closed-loop power control of the third SRS, as shown in Table 1.

[0281] The specific area of ​​DCI format 2_3 is the same as that in the existing standard.

[0282] This method implicitly distinguishes the independent closed-loop power control of SRS through different RNTIs, does not require changes to the existing DCI format 2_3, and can save DCI overhead.

[0283] In some other embodiments, the configuration information includes a first independent closed-loop power control, a second independent closed-loop power control, and a third independent closed-loop power control. The power control information indicates independent closed-loop power control of three sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes the following field: a fourth closed-loop indicator; the downlink control information includes: first downlink control information for scrambling a first transmission power control sounding reference signal (RSRS) and a second downlink control information for scrambling a second transmission power control sounding reference signal (RSRS). The first downlink control information indicates the first independent closed-loop power control, and the fourth closed-loop indicator included in the second downlink control information indicates independent closed-loop power control of the second SRS or the third SRS. When the fourth closed-loop indicator is the eleventh value, the fourth closed-loop indicator indicates independent closed-loop power control of the second SRS; when the fourth closed-loop indicator is the twelfth value, the fourth closed-loop indicator indicates independent closed-loop power control of the third SRS.

[0284] Specifically, a new scrambling method of DCI format 2_3 is added, such as the second transmission power control sounding reference signal radio network temporary identifier TPC-SRS2-RNTI, which is used to distinguish the independent closed-loop power control of SRS.

[0285] When there is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, the UE will only receive the first downlink control information DCI format 2_3 scrambled by the first transmission power control sounding reference signal radio network temporary identifier TPC-SRS-RNTI. The TPC command in this first downlink control information DCI indicates the power adjustment amount of the independent closed-loop power control of the SRS.

[0286] When SRS power control is configured for independent closed-loop power control of the second and / or third SRS, the UE receives DCI format 2_3 scrambled by the first transmission power control sounding reference signal radio network temporary identifier TPC-SRS-RNTI or the second transmission power control sounding reference signal radio network temporary identifier TPC-SRS2-RNTI. When the first downlink control information DCI format 2_3 is scrambled by the first transmission power control sounding reference signal radio network temporary identifier TPC-SRS-RNTI, the TPC command in this first downlink control information DCI indicates the power adjustment amount for independent closed-loop power control of the first SRS.

[0287] When the second downlink control information DCI format 2_3 is scrambled by the second transmit power control sounding reference signal radio network temporary identifier TPC-SRS2-RNTI, and SRS power control does not share closed-loop power control with PUSCH, the following areas are included in the block of type A DCI format 2_3:

[0288] SRS request, 0 or 2 bits.

[0289] Fourth closed-loop indicator, 1 bit.

[0290] TPC command #1, TPC command #2, ..., TPC command #N.

[0291] When the second downlink control information DCI format 2_3 is scrambled by the second transmit power control sounding reference signal radio network temporary identifier TPC-SRS2-RNTI, the higher-layer parameter srs-TPC-PDCCH-Group is configured as type B, and SRS power control does not share closed-loop power control with PUSCH, the following areas are included in the DCI format 2_3 block:

[0292] SRS request, 0 or 2 bits.

[0293] Fourth closed-loop indicator, 1 bit.

[0294] TPC command, 2 bits.

[0295] There is no SRS power control configuration for the independent closed-loop power control of the second and third SRSs, which may be because the UE capability does not support it, and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2 and the third independent closed-loop power control separateClosedLoop3.

[0296] There is SRS power control configuration for the second and / or third SRS independent closed-loop power control, which may be supported by UE capabilities, and / or the high-level parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as the second independent closed-loop power control separateClosedLoop2 and / or the third independent closed-loop power control separateClosedLoop3.

[0297] The TPC command is applied to each uplink carrier separately, indicating the independent closed-loop power control modulation amount of the SRS, as shown in Table 1.

[0298] The content of the fourth closed-loop indicator is shown in Table 6:

[0299] Table 6

[0300] When the value of the fourth closed-loop indicator region is the eleventh value (e.g., 0), the power adjustment amount indicated by the TPC command region is applied to the SRS configured as the second SRS under independent closed-loop power control; when the value of the fourth closed-loop indicator region is the twelfth value (e.g., 1), the power adjustment amount indicated by the TPC command region is applied to the SRS configured as the third SRS under independent closed-loop power control;

[0301] This method implicitly distinguishes the independent closed-loop power control of SRS through different RNTIs, does not require changes to the existing DCI format 2_3, and can save DCI overhead.

[0302] In some other implementations, a new scrambling method is added to DCI format 2_3, such as TPC-SRS2-RNTI, to distinguish the independent closed-loop power control of SRS. When SRS power control is configured with independent closed-loop power control of the second and / or third SRS, and SRS power control does not share closed-loop power control with PUSCH, for the type A DCI format 2_3 block, there are the following areas:

[0303] SRS request, 0 or 2 bits.

[0304] TPC command #1, TPC command #2, ..., TPC command #N.

[0305] Second TPC command #1, second TPC command #2, ..., second TPC command #N.

[0306] When SRS power control is configured with independent closed-loop power control for the second and / or third SRS, and SRS power control does not share closed-loop power control with PUSCH, for blocks of type B DCI format 2_3, the following areas are present:

[0307] SRS request, 0 or 2 bits.

[0308] TPC command, 2 bits.

[0309] Second TPC command, 2 bits.

[0310] There is no SRS power control configuration for independent closed-loop power control of the second and third SRSs, which may be due to UE capabilities not supporting it and / or the higher-layer parameter srs-PowerControlAdjustmentStates in any SRS resource set being configured as separateClosedLoop2 and separateClosedLoop3.

[0311] There is SRS power control configuration for the second and / or third SRS independent closed-loop power control, which may be supported by UE capabilities and / or the higher-layer parameter srs-PowerControlAdjustmentStates in the SRS resource set is configured as separateClosedLoop2 and / or separateClosedLoop3.

[0312] The TPC command is applied to each uplink carrier separately, indicating the independent closed-loop power control modulation amount of the second SRS, as shown in Table 1.

[0313] The second TPC command is applied to each uplink carrier respectively, indicating the independent closed-loop power control modulation amount of the third SRS, as shown in Table 1.

[0314] In some other embodiments, the configuration information includes a first independent closed-loop power control, a second independent closed-loop power control, and a third independent closed-loop power control. The power control information indicates independent closed-loop power control of three sounding reference signals, and the indication is sent via downlink control information and / or a media access control control unit. The downlink control information includes a field: a first transmission power control command. The media access control control unit includes a field: a fifth closed-loop indicator, or a fifth transmission power control command, and a sixth transmission power control command. The first transmission power control command is used to indicate independent closed-loop power control of the first sounding reference signal; the fifth transmission power control command is used to indicate independent closed-loop power control of the second sounding reference signal; and the sixth transmission power control command is used to indicate independent closed-loop power control of the third sounding reference signal. The fifth transmission power control command and the sixth transmission power control command are located in a media access control control unit, and the media access control control unit includes at least one of the following areas: a cell identifier area, a fractional bandwidth identifier (BWP) ID area, a fifth transmission power control command area, a sixth transmission power control command area, and a fifth closed-loop indicator area, wherein the fifth closed-loop indicator is used to indicate independent closed-loop power control of the second sounding reference signal or independent closed-loop power control of the third sounding reference signal.

[0315] Specifically, the independent closed-loop power control of the first SRS is indicated by the first transmission power control command TPC command in DCI format 2_3, and the independent closed-loop power control of the second and third SRSs is indicated by the TPC command in the MAC CE.

[0316] The MAC CE carrying the TPC command can be at least one of the following:

[0317] New TPC command MAC CE,

[0318] Multiplexing indicates the uplink path loss MAC CE,

[0319] Multiplexing SRS activates MAC CE.

[0320] These MAC CEs contain at least one of the following fields: a cell ID field, a bandwidth part (BWP) ID field, a fifth transmission power control command field, a sixth transmission power control command field, and a fifth closed-loop indicator field, occupying 5 bits, 2 bits, 2 bits, 2 bits, and 1 bit, respectively. The fifth and sixth transmission power control command fields indicate the adjustment amounts for the independent closed-loop power control of the second and third SRSs, respectively, as shown in Table 1. The fifth closed-loop indicator field indicates the index of the independent closed-loop power control of the SRS, as shown in Table 7 or Table 8. The following figure is an example of the new TPC command MAC CE.

[0321] Table 7: TPC Command MAC CE

[0322] Table 8: TPC Command MAC CE

[0323] When the value of the fifth closed-loop indicator area is 0, the power adjustment amount indicated by the TPC command area acts on the SRS configured as the independent closed-loop power control of the second SRS; when the value of the fifth closed-loop indicator area is 1, the power adjustment amount indicated by the TPC command area acts on the independent closed-loop power control configured as the third SRS; it is worth noting that the value of the fifth closed-loop indicator area and the content indicated by the TPC command area are not limited to the above examples, and vice versa, and there is no specific restriction.

[0324] [Corrected 05.03.2024 according to Rule 91] As shown in Figure 4, the application time of the power adjustment amount of the TPC command carried by these MAC CEs is KSRS time units after the corresponding PUCCH carrying ACK, and the SRS resource must be the first SRS resource in the SRS resource set. In other words, the time unit of the first SRS resource in the SRS resource set is at least KSRS away from the time unit of the PUCCH carrying ACK. If the time unit is a time slot, the time slot where the PUCCH carrying ACK is located and the time slot where the first SRS in the SRS resource set is located are at least KSRS time slots away. If the time unit is a symbol, the time slot between the last symbol of the PUCCH carrying ACK and the first symbol of the first SRS in the SRS resource set is at least KSRS symbols away.

[0325] This method implicitly distinguishes the independent closed-loop power control of SRS through different media, does not require changes to the existing DCI format 2_3, and can save DCI overhead.

[0326] In the unified TCI framework of the prior art, TCI modes are divided into joint TCI mode and separate TCI mode. Since the uplink and downlink channels are reciprocal, when the UE uses the joint TCI mode, its downlink TCI state and uplink TCI state are the same. Since the uplink and downlink channels are not reciprocal, when the UE uses the separate TCI mode, its downlink TCI state and uplink TCI state are not necessarily the same. The network decides which mode to use based on the UE's capabilities and cannot configure two different TCI modes for the UE at the same time. If the joint TCI mode is used, the network will configure the UE with a joint / downlink TCI state list, activating and indicating one or more joint / downlink TCI states therein. The UE's uplink and downlink transmissions both use the indicated joint / downlink TCI state. If the separate TCI mode is used, the network will not only configure the UE with a joint / downlink TCI state list, but also configure the UE with an uplink TCI state list. The network will activate and indicate one or more joint / downlink TCI states in the joint / downlink TCI state list, as well as one or more uplink TCI states in the uplink TCI state list. The UE's uplink transmission uses the indicated uplink TCI state, and the UE's downlink transmission uses the indicated combined / downlink TCI state.

[0327] For the single TRP scenario, if the TCI mode is configured as the joint TCI mode, MAC CE will activate up to 8 downlink TCI states, DCI will indicate one of the activated downlink TCI states, and most of the UE's uplink and downlink transmissions use the indicated downlink TCI state; if the TCI mode is configured as the separate TCI mode, MAC CE activates up to 8 pairs of TCI states, each pair of TCI states contains 1 downlink TCI state and 1 uplink TCI state, DCI will indicate one of the pairs of activated TCI states, most of the UE's uplinks use the uplink TCI state in the indicated pair of TCI states, and most of the downlink transmissions use the downlink TCI state in the indicated pair of TCI states.

[0328] For the single DCI multi-TRP scenario, if the TCI mode is configured as the joint TCI mode, MAC CE will activate up to 8 groups of downlink TCI states, each group of downlink TCI states contains 2 downlink TCI states, corresponding to different TRPs, and DCI will indicate one of the activated downlink TCI states. Most of the UE's uplink and downlink transmissions use 2 downlink TCI states in the indicated group of downlink TCI states; if the TCI mode is configured as the separate TCI mode, MAC CE will activate up to 8 groups of TCI states, each group of TCI states contains 2 pairs of TCI states, corresponding to different TRPs, each pair of TCI states contains 1 downlink TCI state and 1 uplink TCI state. DCI will indicate one of the activated downlink TCI states, most of the UE's uplink transmissions use 2 downlink TCI states in the indicated group of TCI states, and most of the downlink transmissions use 2 uplink TCI states in the indicated group of TCI states.

[0329] For scenarios where there is an uplink-only TRP, if the TCI mode is configured as a joint TCI mode, the network will configure a joint / downlink TCI state list for the UE, but will not configure an uplink TCI state list for the UE. The uplink-only TRP cannot transmit downlink signals and can only receive uplink signals. The uplink TCI state must be used between the UE and the uplink-only TRP. Therefore, the joint TCI mode cannot be applied to this scenario. If the TCI mode is configured as a separate TCI mode, the network will configure a downlink TCI state list and an uplink TCI state list for the UE. However, the network cannot indicate one downlink TCI state and one pair of uplink TCI states. And if there is uplink and downlink channel reciprocity between the UE and the macro base station TRP, the SRS for uplink beam management between the UE and the macro base station TRP will cause unnecessary waste of resources and energy.

[0330] To configure and indicate the TCI mode and TCI status, this embodiment provides a wireless communication method that can be executed on a terminal device. Specifically, as shown in FIG5a , the method includes:

[0331] Receive configuration information, wherein the configuration information includes some joint parameters, and the some joint parameters are used to indicate that the serving cell configures a joint / downlink transmission configuration indication state list and an uplink transmission configuration indication state list, the downlink transmission configuration indication state in the joint / downlink transmission configuration indication state list is used for downlink transmission and / or uplink transmission, and the uplink transmission configuration indication state in the uplink transmission configuration indication state list is only used for uplink transmission.

[0332] To configure and indicate the TCI mode and TCI status, this embodiment provides a wireless communication method that can be executed by a base station. Specifically, as shown in Figure 5b, the method includes:

[0333] Send configuration information, wherein the configuration information includes some joint parameters, and the some joint parameters are used to indicate that the serving cell configures a joint / downlink transmission configuration indication state list and an uplink transmission configuration indication state list, the downlink transmission configuration indication state in the joint / downlink transmission configuration indication state list is used for downlink transmission and / or uplink transmission, and the uplink transmission configuration indication state in the uplink transmission configuration indication state list is only used for uplink transmission.

[0334] Specifically, the terminal device receives configuration information from the base station, and the configuration information includes a list of service cell configuration joint / downlink transmission configuration indication status and an uplink transmission configuration indication status list; in this way, since the base station indicates 1 downlink TCI state and 1 pair of uplink TCI states, there is uplink and downlink channel reciprocity between the UE and the macro base station TRP, and the SRS for uplink beam management of the UE and the macro base station TRP will save resources and energy consumption.

[0335] In some embodiments, when the unified transmission configuration indication state type is configured as a partial joint parameter, the media access control control unit activates up to eight groups of transmission configuration indication states, where each group of transmission configuration indication states includes a downlink transmission configuration indication state and an uplink transmission configuration indication state. A group of downlink transmission configuration indication states is activated via downlink control information. The media access control control unit includes at least one of the following fields: a cell identifier, a partial bandwidth identifier (BWP ID), a number of transmission configuration indication (TCI) states, a downlink transmission configuration indication (TCI) state identifier, and an uplink transmission configuration indication (TCI) state identifier.

[0336] Specifically, a new partial joint parameter partJoint is configured in the high-level parameter unifiedTCI-StateType-r17 to indicate the partially joint TCI mode, indicating that the serving cell can configure a joint / downlink TCI state list and an uplink TCI state list, where the downlink TCI state in the joint / downlink TCI state list can be used for both downlink and uplink transmissions, and the uplink TCI state in the uplink TCI state list is only used for uplink transmissions.

[0337] When unifiedTCI-StateType-r17 is configured as separate, the serving cell can configure a joint / downlink TCI state list and an uplink TCI state list, where the downlink TCI state in the joint / downlink TCI state list is only used for downlink transmission, and the uplink TCI state in the uplink TCI state list is only used for uplink transmission. When unifiedTCI-StateType-r17 is configured as joint, the serving cell can configure a joint / downlink TCI state list (the uplink TCI state list cannot be configured), where the downlink TCI state in the joint / downlink TCI state list is used for both uplink and downlink transmission. When unifiedTCI-StateType-r17 is configured as partJoint, the serving cell can configure a joint / downlink TCI state list and an uplink TCI state list, where the downlink TCI state in the joint / downlink TCI state list is used for both uplink and downlink transmission, and the uplink TCI state in the uplink TCI state list is only used for uplink transmission.

[0338] When unifiedTCI-StateType-r17 is configured as partJoint, MAC CE activates up to 8 groups of TCI states. Each group of TCI states contains 1 downlink TCI state and 1 uplink TCI state, corresponding to the macro base station TRP and uplink-only TRP respectively. DCI will indicate one of the activated downlink TCI states. Most of the UE's uplink transmissions use one downlink TCI state in the indicated group of TCI states, and most of the uplink transmissions use one downlink TCI state and uplink TCI states in the indicated group of TCI states.

[0339] The MAC CE for activating TCI states, as shown in Table 9, contains at least one of the following fields: cell ID, BWP ID, TCI state number (Ni, i = 1…8), downlink TCI state ID, and uplink TCI state ID. The cell ID field occupies 5 bits; the BWP ID field occupies 2 bits; each TCI state number field occupies 2 bits; each downlink TCI state ID field occupies 7 bits; and each uplink TCI state ID field occupies 6 bits. The TCI state number field (Ni) corresponds to the downlink TCI state ID (Di,j) and uplink TCI state ID (Di,j) fields. The TCI state number field indicates the total number of occurrences of the corresponding TCI state ID (downlink TCI state ID and uplink TCI state ID) fields. This MAC CE contains 8 TCI state number fields. This MAC CE can activate up to 16 downlink TCI states and 16 uplink TCI states. In other words, this MAC CE can activate up to 32 TCI states. This MAC CE is applicable to different scenarios and configurations.

[0340] Table 9: MAC CE with TCI state activated

[0341] For a single TRP scenario, if unifiedTCI-StateType-r17 is configured as joint, the number of TCI states indicated by at least one TCI state number area is 1, and the corresponding TCI state ID area is 1 downlink TCI state ID; if unifiedTCI-StateType-r17 is configured as separate, the number of TCI states indicated by at least one TCI state number area is 2, and the corresponding TCI state ID area is 1 downlink TCI state ID and 1 uplink TCI state ID.

[0342] For the multi-TRP scenario based on a single DCI, if unifiedTCI-StateType-r17 is configured as joint, at least one TCI state number area indicates the number of TCI states as 2, and the corresponding TCI state ID area is 2 downlink TCI state IDs; if unifiedTCI-StateType-r17 is configured as separate, at least one TCI state number area indicates the number of TCI states as 4, and the corresponding TCI state ID area is 2 downlink TCI state IDs and 2 uplink TCI state IDs.

[0343] For scenarios where only uplink TRP exists, if unifiedTCI-StateType-r17 is configured as partJoint, at least one TCI state number area indicates the number of TCI states as 2, and the corresponding TCI state ID area is 1 downlink TCI state ID and 1 uplink TCI state ID; if unifiedTCI-StateType-r17 is configured as separate, at least one TCI state number area indicates the number of TCI states as 3, and the corresponding TCI state ID area is 1 downlink TCI state ID and 2 uplink TCI state IDs.

[0344] In the existing four-step access method, when accessing a TRP, the UE first finds an SSB with good signal quality. The UE then transmits a PRACH to the TRP using the beam corresponding to this SSB. The TRP that receives the PRACH uses this beam to transmit message 2 to the UE. The UE that receives message 2 uses this beam to transmit message 3 to the TRP. The TRP that receives message 3 uses this beam to transmit message 4 to the UE. Furthermore, the path loss of the UE when transmitting PRACH message 2 is determined by measuring the SSB.

[0345] In the existing standard two-step access method, the UE also finds a SSB with good signal quality. The UE then transmits message A to the TRP using the beam corresponding to this SSB. The TRP that receives message A then uses this beam to transmit message B to the UE. Furthermore, the path loss when the UE transmits PRACH message A is determined by measuring the SSB.

[0346] In the scenario where there is an uplink-only TRP, if the UE is close to the macro base station TRP, the UE uses the access method in the existing standard to access the network from the macro base station TRP. However, if the UE is far away from the macro base station TRP, the UE using the access method in the existing standard to access the network from the macro base station TRP will cause significant interference. Usually, a UE far away from the macro base station TRP will be close to the uplink-only TRP. At this time, it is a better choice for the UE to obtain downlink information from the macro base station TRP and send uplink information to the uplink-only TRP. However, it is unclear how the UE performs initial access through the uplink-only TRP.

[0347] In order to perform beam management for the UE and uplink-only TRP during initial access, this embodiment provides a wireless communication method that can be executed on a terminal device. Specifically, as shown in Figure 6a, the method includes:

[0348] A physical random access channel is sent on a random access opportunity based on the signal quality of the synchronized broadcast block and a threshold value, wherein the threshold value is predefined or configured by a higher layer parameter.

[0349] In order to perform beam management for the UE and the uplink-only TRP during initial access, this embodiment provides a wireless communication method that can be executed by a base station. Specifically, as shown in Figure 6b, the method includes:

[0350] A physical random access channel is received at a random access opportunity based on the signal quality of the synchronized broadcast block and a threshold value, wherein the threshold value is predefined or configured by a higher layer parameter.

[0351] Specifically, the base station receiving terminal sends a physical random access channel at a random access opportunity based on the signal quality and threshold value of the synchronization broadcast block to perform beam management on the UE and uplink-only TRP, and the threshold value is predefined or configured by high-level parameters.

[0352] In some embodiments, the sending of a physical random access channel at a random access opportunity corresponding to a selected synchronous broadcast block based on the signal quality and threshold of the synchronous broadcast block includes: when the signal quality of the synchronous broadcast block measured several times is greater than or equal to the threshold, sending the physical random access channel at the random access opportunity using a spatial filter corresponding to the selected SSB; when the signal quality of the synchronous broadcast block measured several times is less than the threshold, sending the physical random access channel at the random access opportunity corresponding to the selected synchronous broadcast block using a different spatial filter. When the signal quality of the synchronous broadcast block is greater than or equal to the threshold, sending first information based on the spatial filter corresponding to the selected synchronous broadcast block; when the signal quality of the synchronous broadcast block is less than the threshold, sending first information based on the spatial filter corresponding to the physical random access channel implicitly indicated by the preconfigured information and the timing relationship. The system information includes a channel quality threshold and the number of physical random access channels in a physical random access channel group.

[0353] Specifically, as shown in Figure 7-8, the process of UE accessing the network through the macro base station TRP is as follows:

[0354] 1. UE receives SSB and system messages;

[0355] 2. If the signal quality of at least one measured SSB is greater than or equal to the threshold (carried in SIB1), the UE transmits the PRACH on the RO corresponding to the selected SSB using the spatial filter corresponding to the selected SSB. The PRACH path loss is obtained based on the measured SSB.

[0356] 3. The UE receives the RAR using the selected corresponding SSB spatial filter;

[0357] 4. The UE transmits msg3 using the selected corresponding SSB spatial filter;

[0358] 5. The UE receives msg4 using the selected corresponding SSB spatial filter.

[0359] The process of UE accessing the network through uplink-only TRP:

[0360] 1. UE receives SSB and system messages;

[0361] 2. If the signal quality or average signal quality of multiple measured SSBs is less than the threshold (carried in SIB1), the UE uses different spatial filters to repeatedly transmit PRACH on the RO corresponding to the selected SSB. The number of repeated transmissions of PRACH is configured by the higher-layer parameters (carried in SIB1), and the path loss of PRACH is obtained according to the configured path loss (carried in SIB1);

[0362] 3. The UE receives the RAR using the selected corresponding SSB spatial filter;

[0363] 4. The UE transmits msg3 using the spatial filter implicitly indicated by the RAR according to the timing relationship;

[0364] 5. The UE receives msg4 using the spatial filter corresponding to the selected SSB.

[0365] New high-level parameters channel quality threshold (channelQualityThreshold) and repetition number (repetitionNumber) are added and carried by SIB1. The high-level parameter (channelQualityThreshold) indicates the threshold value of the signal quality (for example, RSRP) of the SSB used to select the transmitting PRACH object (macro base station TRP or uplink-only TRP), and its value is A, where A is an integer and its unit is dB. The high-level parameter repetitionNumber is carried by SIB1 and indicates the number of times PRACH is repeated, and its value is B, where B is an integer. These repeated PRACHs correspond to different spatial filters. These repeated PRACHs are defined as 1 PRACH group. If channelQualityThreshold is not configured, the UE will ignore the configuration of repetitionNumber. If channelQualityThreshold is configured but repetitionNumber is not configured, the UE will default to the value of this parameter C, which is predefined.

[0366] If channelQualityThreshold is configured as A, the UE compares the RSRP of the detected SSB with A. If the RSRP of at least one UE-measured SSB is greater than or equal to A, it indicates that the UE is close to the macro base station TRP, and the UE transmits PRACH on the corresponding RO using the spatial filter corresponding to the selected SSB. If the RSRP of the SSB measured by the UE is less than A multiple times, it indicates that the UE is close to the uplink-only TRP, and the UE checks whether repetitionNumber is configured. If repetitionNumber is configured as B, the UE transmits PRACH B times on the RO corresponding to the selected SSB using different spatial filters. If repetitionNumber is not configured, the UE transmits PRACH C times on the RO corresponding to the selected SSB using different spatial filters. If channelQualityThreshold is not configured, it indicates that the uplink-only TRP scenario does not exist, and the UE transmits PRACH on the RO corresponding to the selected SSB using the spatial filter corresponding to the selected SSB.

[0367] If the signal quality of the SSB measured by the UE at least once is greater than or equal to the threshold, the path loss amount of the UE's PRACH transmission is obtained based on the measured SSB; if the UE does not receive the RAR and transmits the PRACH again using the same spatial filter, the PRACH power will increase by ΔP; if the UE does not receive the RAR and transmits the PRACH again using a different spatial filter, the PRACH power will not increase.

[0368] If the signal quality or average signal quality of the SSB measured multiple times is less than the threshold, the path loss amount for the UE to transmit PRACH uses the path loss amount configured in SIB1; within a PRACH group, the UE transmits PRACH using different spatial filters, and the PRACH power is the same; if the UE does not receive the RAR, the UE will transmit the PRACH group again, and the power of each PRACH in the PRACH group will be increased by ΔP'.

[0369] The number of PRACHs in a PRACH group is configured by the higher-level parameter numberInGroup (Physical Random Access Channel). ΔP and ΔP' are configured by the higher-level parameters PowerRampingStep and PowerRampingStep2, respectively, and are carried in SIB1. If PowerRampingStep2 is not configured, ΔP' uses the PowerRampingStep configuration.

[0370] As shown in Figure 9, after transmitting a PRACH group, the UE monitors the Random Access Response (RAR) group. Each RAR group contains several RAR candidates. The number of RAR candidates in an RAR group is equal to the number of PRACHs in the PRACH group, which is configured or predefined by higher-layer parameters. Each PRACH in a PRACH group has a one-to-one temporal correspondence with each RAR candidate in the RAR group.

[0371] Specifically, when the UE receives the RAR at the time point of the third RAR, the UE will know that its best uplink spatial filter is the spatial filter corresponding to the third PRACH, and the UE will use this spatial filter to transmit msg3.

[0372] There are two ways to form an RAR group. The first is composed of multiple Physical Downlink Control Channel (PDCCH) candidates and one Physical Downlink Shared Channel (PDSCH), as shown in Figure 10. Multiple PDCCH candidates are associated, and the number of candidates is equal to the number of PRACHs in the PRACH group, which is configured or predefined by high-level parameters. These PDCCHs all schedule the same PDSCH. The second is composed of one PDCCH and multiple PDSCHs, as shown in Figure 11. This PDCCH will schedule one of the multiple PDSCH candidates. The number of multiple PDSCH candidates is equal to the number of PRACHs in the PRACH group, which is configured or predefined by high-level parameters.

[0373] Specifically, if the first method is adopted, when the UE receives the PDCCH at the time point of the third PDCCH candidate, the UE can know that its best uplink spatial filter is the spatial filter corresponding to the third PRACH, and the UE will use this spatial filter to transmit message 3 (Message 3, msg3); if the second method is adopted, when the UE receives the third PDSCH scheduled by the PDCCH, the UE can know that its best uplink spatial filter is the spatial filter corresponding to the third PRACH, and the UE will use this spatial filter to transmit msg3.

[0374] This document describes a wireless communication method applicable to communications between a user equipment terminal (UE) and a base station (BS). However, these inventive concepts, methods, apparatuses, devices, computer-readable storage media, chips, and computer program products are not limited to 5G NR communications and can be extended to other communication scenarios to achieve the same technical benefits and effects.

[0375] In these scalable communication scenarios, a terminal equipment (UE) refers to a device used for communication at the user end, such as a mobile phone. It can also be called a terminal, mobile station, or mobile terminal. UE can be a variety of devices, including but not limited to mobile phones, tablets, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals for industrial control, wireless terminals for autonomous driving, wireless terminals for remote medical surgery, wireless terminals for smart grids, wireless terminals for environmental monitoring, wireless terminals for smart cities, and wireless terminals for smart homes.

[0376] Furthermore, UEs and base stations can be deployed in different environments, including but not limited to indoors, outdoors, as handheld devices, in vehicles, or even on water, in the air, on airplanes, drones, or satellites.

[0377] Therefore, although this document describes methods and devices for 5G NR communications, the inventive concepts and technologies contained therein can be extended to other communication scenarios and are expected to achieve the same technical benefits and effects. It is easy to understand that these inventive concepts have broad applicability and scalability, whether in communications between different types of base stations and user equipment, or in different deployment environments.

[0378] It should be noted that the above steps are merely examples and do not limit the scope of the present invention. Various modifications and variations can be made to the steps without departing from the spirit and scope of the present invention.

[0379] The order of the described steps (signaling / boxes) is not intended to be construed as a limitation, and any number of the described steps (signaling / boxes) may be skipped or combined in any order to implement a method or an alternative method.

[0380] The present disclosure describes an example of communication between a terminal and a network element component in a network architecture in the above embodiments, which is mainly for illustrative purposes and not restrictive.

[0381] The order of the steps (signaling / boxes) described is not intended to be interpreted as limiting, and any number of the steps (signaling / boxes) described can be skipped or combined in any order to implement a method or alternative method. Typically, any of the components, modules, methods, and operations described herein can be implemented using software, firmware, hardware (e.g., fixed logic circuitry), manual processing, or any combination thereof. Some operations of the example methods can be described in the general context of executable instructions stored on a computer-readable memory locally and / or remotely on a computer processing system, and implementation methods can include software applications, programs, functions, and the like. Alternatively or in addition, any function described herein can be performed, at least in part, by one or more hardware logic components, such as, but not limited to, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), an application specific standard product (ASSP), a system on a chip (SoC), a complex programmable logic device (CPLD), and the like.

[0382] In addition, the signaling described in the embodiments of the present disclosure can be implemented in any manner known in the art. For example, the signaling can be explicit and / or implicit. In addition, the steps (signaling / frames) shown are for illustrative purposes only and are not intended to limit the present application.

[0383] FIG12 is a schematic structural diagram of a wireless communication device 900 provided by the present disclosure. The wireless communication device includes: a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and perform the following operations:

[0384] receiving configuration information of a sounding reference signal, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals;

[0385] An indication of power adjustment of the sounding reference signal is received.

[0386] or

[0387] Receive configuration information, wherein the configuration information includes some joint parameters, and the some joint parameters are used to indicate that the serving cell configures a joint / downlink transmission configuration indication state list and an uplink transmission configuration indication state list, the downlink transmission configuration indication state in the joint / downlink transmission configuration indication state list is used for downlink transmission and / or uplink transmission, and the uplink transmission configuration indication state in the uplink transmission configuration indication state list is only used for uplink transmission.

[0388] or

[0389] A physical random access channel is sent on a random access opportunity based on the signal quality of the synchronized broadcast block and a threshold value, where the threshold value is predefined or configured by a higher layer parameter.

[0390] or

[0391] Sending configuration information for a sounding reference signal, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals;

[0392] Send an indication of power adjustment of a sounding reference signal.

[0393] or

[0394] Send configuration information, wherein the configuration information includes some joint parameters, and the some joint parameters are used to indicate that the serving cell configures a joint / downlink transmission configuration indication state list and an uplink transmission configuration indication state list, the downlink transmission configuration indication state in the joint / downlink transmission configuration indication state list is used for downlink transmission and / or uplink transmission, and the uplink transmission configuration indication state in the uplink transmission configuration indication state list is only used for uplink transmission.

[0395] or

[0396] A physical random access channel is received at a random access opportunity based on the signal quality of the synchronized broadcast block and a threshold value, wherein the threshold value is predefined or configured by a higher layer parameter.

[0397] The wireless communication device may be a user device, a base station, or a network element. The wireless communication device 900 shown in FIG12 includes a processor 910. The processor 910 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0398] Optionally, as shown in FIG12 , the wireless communication device 900 may further include a memory 920. The processor 910 may call and execute a computer program from the memory 920 to implement the method in the embodiment of the present application. The memory 920 may be a separate device independent of the processor 910 or may be integrated into the processor 910.

[0399] Optionally, as shown in FIG12 , the wireless communication device 900 may further include a transceiver 930. The processor 910 may control the transceiver 930 to communicate with other devices. Specifically, the transceiver 930 may send information or data to other devices or receive information or data sent by other devices. The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include one or more antennas.

[0400] Optionally, the wireless communication device 900 may specifically be a base station in an embodiment of the present application, and the wireless communication device 900 may implement the corresponding processes implemented by the base station in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0401] Optionally, the wireless communication device 900 may specifically be a mobile user device / user device in an embodiment of the present application, and the wireless communication device 900 may implement the corresponding processes implemented by the mobile user device / user device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0402] Optionally, the wireless communication device 900 may specifically be a network element in an embodiment of the present application, and the wireless communication device 900 may implement the corresponding processes implemented by the network element in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0403] According to an example embodiment, a chip is provided, comprising: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes a method according to any one of the above embodiments, examples, or exemplary embodiments.

[0404] According to an example embodiment, there is provided a computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute a method according to any one of the above-mentioned embodiments, examples, or exemplary embodiments.

[0405] According to an example embodiment, a computer program product is provided, comprising a computer program / instruction, which, when executed by a processor (e.g., by the processor or an apparatus, device, computer or machine including the processor), implements a method according to any one of the above-mentioned embodiments, examples, or example embodiments.

[0406] The embodiments of the present disclosure are a combination of techniques / processes that may be employed in 3GPP specifications to create a final product.

[0407] While the present disclosure has been described in connection with what is considered to be the most practical and preferred embodiment, it is to be understood that the disclosure is not limited to the disclosed embodiment, but is intended to cover various arrangements embodied within the broadest interpretation of the appended claims.

Claims

1. A wireless communication method, executed in a terminal device, wherein: The method comprises: receiving configuration information of a sounding reference signal, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals; An indication of power adjustment of the sounding reference signal is received.

2. The method according to claim 1, wherein The indication is sent via downlink control information and / or a media access control control unit.

3. The method according to any one of claims 1 to 2, wherein The downlink control information includes at least one of the following areas: First closed loop indicator, Second closed loop indicator, The third closed loop indicator, Fourth closed loop indicator, a first transmission power control command, The second transmission power control command, a third transmit power control command, and A fourth transmission power control command.

4. The method according to any one of claims 1 to 2, wherein The downlink control information includes at least one of the following: First downlink control information scrambled by a first transmission power control sounding reference signal radio network temporary identifier, the second downlink control information scrambled by the second transmission power control sounding reference signal radio network temporary identifier, and The third downlink control information is scrambled by the third transmission power control sounding reference signal and the radio network temporary identifier.

5. The method according to any one of claims 1 to 2, wherein The media access control control unit includes at least one of the following areas: Fifth closed loop indicator, a fifth transmit power control command, and A sixth transmission power control command.

6. The method according to any one of claims 1 to 5, wherein The method further comprises: Reports capabilities related to closed-loop power control of sounding reference signals.

7. The method according to claim 6, wherein: The capabilities include at least one of the following: Supports closed-loop power control of more than three sounding reference signals; The number of closed-loop power control of sounding reference signals supported; Supporting independent closed-loop power control of at least two sounding reference signals; and The number of independent closed-loop power controls supported for sounding reference signals.

8. The method according to any one of claims 1 to 7, wherein The configuration information includes a first independent closed-loop power control, a second independent closed-loop power control and / or a third independent closed-loop power control.

9. The method according to any one of claims 1 to 7, wherein The power control information indicates independent closed-loop power control of two sounding reference signals, and the method further includes at least one of the following: When the first higher layer parameter Sounding Reference Signal Power Control Adjustment State is not configured, the first closed-loop power control of the Sounding Reference Signal Shared Physical Uplink Shared Channel; When the first higher layer parameter sounding reference signal power control adjustment state is configured to be the same as the second PUSCH closed-loop power control, the sounding reference signal shares the second closed-loop power control of the physical uplink shared channel; When the first higher layer parameter sounding reference signal power control adjustment state is configured as the first independent closed-loop power control, the sounding reference signal uses the first independent closed-loop power control; When the first higher layer parameter sounding reference signal power control adjustment state is configured as the second independent closed-loop power control, the sounding reference signal uses the second independent closed-loop power control.

10. The method according to any one of claims 1 to 7, wherein The power control information indicates independent closed-loop power control of two sounding reference signals, and the configuration information includes a second independent closed-loop configuration, where the second independent closed-loop configuration is used to indicate whether the sounding reference signal can configure independent closed-loop power control of a second sounding reference signal.

11. The method according to any one of claims 1 to 10, wherein When the terminal device supports closed-loop power control of more than 3 sounding reference signals, or supports independent closed-loop power control of at least two sounding reference signals, the power control information in the configuration information includes independent closed-loop power control of at least two sounding reference signals, and / or the second independent closed-loop configuration is configured as at least one of the following: enabled, disabled, and not configured.

12. The method according to any one of claims 1 to 7, wherein When the first closed-loop indicator is a first value, the first closed-loop indicator indicates independent closed-loop power control of a first sounding reference signal; when the first closed-loop indicator is a second value, the first closed-loop indicator indicates independent closed-loop power control of a second sounding reference signal.

13. The method according to any one of claims 1 to 7, wherein: When the second closed-loop indicator is a third value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal; when the second closed-loop indicator is a fourth value, the second closed-loop indicator indicates independent closed-loop power control of the second sounding reference signal; when the second closed-loop indicator is a fifth value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal and independent closed-loop power control of the second sounding reference signal; when the second closed-loop indicator is a sixth value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal and independent closed-loop power control of the second sounding reference signal, or is reserved.

14. The method according to any one of claims 1 to 7, wherein: The first downlink control information is used to indicate independent closed-loop power control of a first sounding reference signal, and the second downlink control information is used to indicate independent closed-loop power control of a second sounding reference signal.

15. The method according to any one of claims 1 to 7, wherein: The first transmission power control command is used to instruct independent closed-loop power control of a first sounding reference signal; and the second transmission power control command is used to instruct independent closed-loop power control of a second sounding reference signal.

16. The method according to any one of claims 1 to 7, wherein The first transmission power control command is used to instruct independent closed-loop power control of a first sounding reference signal; and the fifth transmission power control command is used to instruct independent closed-loop power control of a second sounding reference signal.

17. The method according to claim 16, wherein The media access control control unit including the fifth transmission power control command includes at least one of the following areas: a cell identifier area, a partial bandwidth identifier area, and a transmission power control command area, wherein the transmission power control command area is used to indicate independent closed-loop power control of a second sounding reference signal.

18. The method according to claim 17, wherein The second independent closed-loop power control includes a power adjustment value, and the application time of the power adjustment value is located after the predefined time unit of the corresponding physical uplink control channel carrying the confirmation character.

19. The method according to any one of claims 1 to 7, wherein: The power control information indicates independent closed-loop power control of three sounding reference signals, and the method further includes at least one of the following: When the second higher layer parameter Sounding Reference Signal Power Control Adjustment State is not configured, the first closed-loop power control of the Sounding Reference Signal Shared Physical Uplink Shared Channel; When the second higher layer parameter sounding reference signal power control adjustment state is configured to be the same as the second PUSCH closed-loop power control, the sounding reference signal shares the second closed-loop power control of the physical uplink shared channel; When the second higher layer parameter sounding reference signal power control adjustment state is configured as the first independent closed-loop power control, the sounding reference signal uses the first independent closed-loop power control; When the second higher layer parameter sounding reference signal power control adjustment state is configured as second independent closed-loop power control, the sounding reference signal uses the second independent closed-loop power control; When the second higher layer parameter sounding reference signal power control adjustment state is configured as the third independent closed-loop power control, the sounding reference signal uses the third independent closed-loop power control.

20. The method according to any one of claims 1 to 7, wherein The power control information indicates independent closed-loop power control of three sounding reference signals, and the configuration information includes a second independent closed-loop configuration and / or a third independent closed-loop configuration, wherein the second independent closed-loop configuration is used to indicate whether the sounding reference signal can be configured with independent closed-loop power control of the second sounding reference signal, and the third independent closed-loop configuration is used to indicate whether the sounding reference signal can be configured with independent closed-loop power control of the third sounding reference signal.

21. The method according to any one of claims 1 to 7, wherein When the terminal device supports closed-loop power control of more than 3 sounding reference signals, or supports independent closed-loop power control of at least two sounding reference signals, the power control information in the configuration information indicates independent closed-loop power control of at least three sounding reference signals, and / or the second independent closed-loop configuration is configured as at least one of the following: enabled, disabled and not configured, and the third independent closed-loop configuration is configured as at least one of the following: enabled, disabled and not configured.

22. The method according to any one of claims 1 to 7, wherein When the third closed-loop indicator is a seventh value, the third closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal; when the third closed-loop indicator is an eighth value, the third closed-loop indicator indicates independent closed-loop power control of the second sounding reference signal; when the third closed-loop indicator is a ninth value, the third closed-loop indicator indicates independent closed-loop power control of the third sounding reference signal; when the third closed-loop indicator is a tenth value, the third closed-loop indicator indicates any two of the independent closed-loop power control of the first sounding reference signal, the independent closed-loop power control of the second sounding reference signal, and the independent closed-loop power control of the third sounding reference signal, or retains them.

23. The method according to any one of claims 1 to 7, wherein The first transmission power control command is used to indicate independent closed-loop power control of the first sounding reference signal; the third transmission power control command is used to indicate independent closed-loop power control of the second sounding reference signal; and the fourth transmission power control command is used to indicate independent closed-loop power control of the third sounding reference signal.

24. The method according to any one of claims 1 to 7, wherein The first downlink control information is used to indicate a first independent closed-loop power control, the second downlink control information is used to indicate a second independent closed-loop power control, and the third downlink control information is used to indicate a third independent closed-loop power control.

25. The method according to any one of claims 1 to 7, wherein The first downlink control information is used to indicate a first independent closed-loop power control, and the fourth closed-loop indicator included in the second downlink control information indicates independent closed-loop power control of a second sounding reference signal or independent closed-loop power control of a third sounding reference signal.

26. The method according to claim 25, wherein When the fourth closed-loop indicator is the eleventh value, the fourth closed-loop indicator is used to indicate independent closed-loop power control of the second sounding reference signal; when the fourth closed-loop indicator is the twelfth value, the fourth closed-loop indicator is used to indicate independent closed-loop power control of the third sounding reference signal.

27. The method according to any one of claims 1 to 7, wherein The first transmission power control command is used to indicate independent closed-loop power control of a first sounding reference signal; the fifth transmission power control command is used to indicate independent closed-loop power control of a second sounding reference signal; and the sixth transmission power control command is used to indicate independent closed-loop power control of a third sounding reference signal.

28. The method according to claim 27, wherein The fifth transmission power control command and the sixth transmission power control command are located in a media access control control unit, and the media access control control unit includes at least one of the following areas: a cell identifier area, a partial bandwidth identifier area, a fifth transmission power control command area, a sixth transmission power control command area, and a fifth closed-loop indicator area, wherein the fifth closed-loop indicator is used to indicate independent closed-loop power control of the second sounding reference signal or independent closed-loop power control of the third sounding reference signal.

29. A wireless communication method, executed in a terminal device, wherein: The method comprises: Receive configuration information, wherein the configuration information includes some joint parameters, and the some joint parameters are used to indicate that the serving cell configures a joint / downlink transmission configuration indication state list and an uplink transmission configuration indication state list, the downlink transmission configuration indication state in the joint / downlink transmission configuration indication state list is used for downlink transmission and / or uplink transmission, and the uplink transmission configuration indication state in the uplink transmission configuration indication state list is only used for uplink transmission.

30. The method according to claim 29, wherein When the unified transmission configuration indication state type is configured as a partial joint parameter, the MAC control unit activates at most eight groups of transmission configuration indication states, where each group of transmission configuration indication states includes a downlink transmission configuration indication state and an uplink transmission configuration indication state.

31. The method according to claim 29, wherein A set of downlink transmission configuration indication states is activated via downlink control information.

32. The method of claim 29, wherein: The media access control control unit includes at least one of the following areas: a cell identifier, a partial bandwidth identifier, a number of transmission configuration indication states, a downlink transmission configuration indication state identifier, and an uplink transmission configuration indication state identifier.

33. A wireless communication method, executed in a terminal device, wherein: The method comprises: A physical random access channel is sent on a random access opportunity based on the signal quality of the synchronized broadcast block and a threshold value, wherein the threshold value is predefined or configured by a higher layer parameter.

34. The method according to claim 33, wherein The sending of the physical random access channel at the random access opportunity corresponding to the selected synchronized broadcast block based on the signal quality of the synchronized broadcast block and a predefined threshold value includes: When the signal quality of the synchronous broadcast block is greater than or equal to the threshold, the physical random access channel is sent at the random access opportunity using the spatial filter corresponding to the selected SSB; When the signal quality of the synchronization broadcast block is less than a threshold value, a physical random access channel is sent on a random access opportunity corresponding to the selected synchronization broadcast block using different spatial filters.

35. The method according to claim 34, wherein When the signal quality of the synchronized broadcast block is greater than or equal to the threshold value, sending the first information based on the spatial filter corresponding to the selected synchronized broadcast block; When the signal quality of the synchronized broadcast block is less than a threshold value, first information is sent based on the spatial filter corresponding to the physical random access channel implicitly indicated by the pre-configured information and the timing relationship.

36. The method of claim 34, wherein: The system information includes a channel quality threshold and the number of physical random access channels in a physical random access channel group.

37. A wireless communication method, executed by a base station, wherein: The method comprises: Sending configuration information for a sounding reference signal, wherein the configuration information includes power control information corresponding to the sounding reference signal; wherein the power control information includes independent closed-loop power control of at least two sounding reference signals; Send an indication of power adjustment of a sounding reference signal.

38. The method according to claim 37, wherein The indication is sent via downlink control information and / or a media access control control unit.

39. The method according to any one of claims 37-38, wherein The downlink control information includes at least one of the following areas: First closed loop indicator, Second closed loop indicator, The third closed loop indicator, Fourth closed loop indicator, a first transmission power control command, The second transmission power control command, a third transmit power control command, and A fourth transmission power control command.

40. The method according to any one of claims 37-38, wherein The downlink control information includes at least one of the following: First downlink control information scrambled by a first transmission power control sounding reference signal radio network temporary identifier, the second downlink control information scrambled by the second transmission power control sounding reference signal radio network temporary identifier, and The third downlink control information is scrambled by the third transmission power control sounding reference signal and the radio network temporary identifier.

41. The method according to any one of claims 37-38, wherein The media access control control unit includes at least one of the following areas: a fifth transmit power control command, and A sixth transmission power control command.

42. The method according to any one of claims 37 to 41, wherein The method further comprises: Receive capabilities related to closed-loop power control of sounding reference signals.

43. The method according to claim 42, wherein The capabilities include at least one of the following: Supports closed-loop power control of more than three sounding reference signals; The number of closed-loop power control of sounding reference signals supported; Supporting independent closed-loop power control of at least two sounding reference signals; and The number of independent closed-loop power controls supported for sounding reference signals.

44. The method according to any one of claims 37 to 43, wherein The configuration information includes a first independent closed-loop power control, a second independent closed-loop power control and / or a third independent closed-loop power control.

45. The method according to any one of claims 37 to 43, wherein The power control information indicates independent closed-loop power control of two sounding reference signals, and the method further includes at least one of the following: When the first higher layer parameter Sounding Reference Signal Power Control Adjustment State is not configured, the first closed-loop power control of the Sounding Reference Signal Shared Physical Uplink Shared Channel; When the first higher layer parameter sounding reference signal power control adjustment state is configured to be the same as the second PUSCH closed-loop power control, the sounding reference signal shares the second closed-loop power control of the physical uplink shared channel; When the first higher layer parameter sounding reference signal power control adjustment state is configured as the first independent closed-loop power control, the sounding reference signal uses the first independent closed-loop power control; When the first higher layer parameter sounding reference signal power control adjustment state is configured as the second independent closed-loop power control, the sounding reference signal uses the second independent closed-loop power control.

46. ​​The method according to any one of claims 37 to 43, wherein The configuration information includes a second independent closed-loop configuration, where the second independent closed-loop configuration is used to indicate whether the sounding reference signal can configure independent closed-loop power control of a second sounding reference signal.

47. The method according to any one of claims 37 to 46, wherein When the terminal device supports closed-loop power control of more than 3 sounding reference signals, or supports independent closed-loop power control of at least two sounding reference signals, the power control information in the configuration information includes independent closed-loop power control of at least two sounding reference signals, and / or the second independent closed-loop configuration is configured as at least one of the following: enabled, disabled, and not configured.

48. The method according to any one of claims 37 to 43, wherein When the first closed-loop indicator is a first value, the first closed-loop indicator indicates independent closed-loop power control of a first sounding reference signal; when the first closed-loop indicator is a second value, the first closed-loop indicator indicates independent closed-loop power control of a second sounding reference signal.

49. The method according to any one of claims 37 to 43, wherein When the second closed-loop indicator is a third value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal; when the second closed-loop indicator is a fourth value, the second closed-loop indicator indicates independent closed-loop power control of the second sounding reference signal; when the second closed-loop indicator is a fifth value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal and independent closed-loop power control of the second sounding reference signal; when the second closed-loop indicator is a sixth value, the second closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal and independent closed-loop power control of the second sounding reference signal, or is reserved.

50. The method according to any one of claims 37 to 43, wherein The first downlink control information is used to indicate independent closed-loop power control of a first sounding reference signal, and the second downlink control information is used to indicate independent closed-loop power control of a second sounding reference signal.

51. The method according to any one of claims 37 to 43, wherein The first transmission power control command is used to instruct independent closed-loop power control of a first sounding reference signal; and the second transmission power control command is used to instruct independent closed-loop power control of a second sounding reference signal.

52. The method according to any one of claims 37 to 43, wherein The first transmission power control command is used to instruct independent closed-loop power control of a first sounding reference signal; and the fifth transmission power control command is used to instruct independent closed-loop power control of a second sounding reference signal.

53. The method of claim 52, wherein: The media access control control unit including the fifth transmission power control command includes at least one of the following areas: a cell identifier area, a partial bandwidth identifier area, and a transmission power control command area, wherein the transmission power control command area is used to indicate independent closed-loop power control of a second sounding reference signal.

54. The method of claim 53, wherein: The second independent closed-loop power control includes a power adjustment value, and the application time of the power adjustment value is located after the predefined time unit of the corresponding physical uplink control channel carrying the confirmation character.

55. The method according to any one of claims 37 to 43, wherein The power control information indicates independent closed-loop power control of three sounding reference signals, and the method further includes at least one of the following: When the second higher layer parameter Sounding Reference Signal Power Control Adjustment State is not configured, the first closed-loop power control of the Sounding Reference Signal Shared Physical Uplink Shared Channel; When the second higher layer parameter sounding reference signal power control adjustment state is configured to be the same as the second PUSCH closed-loop power control, the sounding reference signal shares the second closed-loop power control of the physical uplink shared channel; When the second higher layer parameter sounding reference signal power control adjustment state is configured as the first independent closed-loop power control, the sounding reference signal uses the first independent closed-loop power control; When the second higher layer parameter sounding reference signal power control adjustment state is configured as second independent closed-loop power control, the sounding reference signal uses the second independent closed-loop power control; When the second higher layer parameter sounding reference signal power control adjustment state is configured as the third independent closed-loop power control, the sounding reference signal uses the third independent closed-loop power control.

56. The method according to any one of claims 37 to 43, wherein The power control information indicates independent closed-loop power control of three sounding reference signals, and the configuration information includes a second independent closed-loop configuration and / or a third independent closed-loop configuration, wherein the second independent closed-loop configuration is used to indicate whether the sounding reference signal can be configured with independent closed-loop power control of the second sounding reference signal, and the third independent closed-loop configuration is used to indicate whether the sounding reference signal can be configured with independent closed-loop power control of the third sounding reference signal.

57. The method according to any one of claims 37 to 43, wherein When the terminal device supports closed-loop power control of more than 3 sounding reference signals, or supports independent closed-loop power control of at least two sounding reference signals, the power control information in the configuration information indicates independent closed-loop power control of at least three sounding reference signals, and / or the second independent closed-loop configuration is configured as at least one of the following: enabled, disabled and not configured, and the third independent closed-loop configuration is configured as at least one of the following: enabled, disabled and not configured.

58. The method according to any one of claims 37 to 43, wherein When the third closed-loop indicator is a seventh value, the third closed-loop indicator indicates independent closed-loop power control of the first sounding reference signal; when the third closed-loop indicator is an eighth value, the third closed-loop indicator indicates independent closed-loop power control of the second sounding reference signal; when the third closed-loop indicator is a ninth value, the third closed-loop indicator indicates independent closed-loop power control of the third sounding reference signal; when the third closed-loop indicator is a tenth value, the third closed-loop indicator indicates any two of the independent closed-loop power control of the first sounding reference signal, the independent closed-loop power control of the second sounding reference signal, and the independent closed-loop power control of the third sounding reference signal, or retains them.

59. The method according to any one of claims 37 to 43, wherein The first transmission power control command is used to indicate independent closed-loop power control of a first sounding reference signal; the third transmission power control command is used to indicate independent closed-loop power control of a second sounding reference signal; and the fourth transmission power control command is used to indicate independent closed-loop power control of a third sounding reference signal.

60. The method according to any one of claims 37 to 43, wherein The first downlink control information is used to indicate a first independent closed-loop power control, the second downlink control information is used to indicate a second independent closed-loop power control, and the third downlink control information is used to indicate a third independent closed-loop power control.

61. The method according to any one of claims 37 to 43, wherein The first downlink control information is used to indicate a first independent closed-loop power control, and the four closed-loop indicators included in the second downlink control information indicate independent closed-loop power control of a second sounding reference signal or independent closed-loop power control of a third sounding reference signal.

62. The method of claim 61, wherein When the fourth closed-loop indicator is the eleventh value, the fourth closed-loop indicator is used to indicate independent closed-loop power control of the second sounding reference signal; when the fourth closed-loop indicator is the twelfth value, the fourth closed-loop indicator is used to indicate independent closed-loop power control of the third sounding reference signal.

63. The method according to any one of claims 37 to 43, wherein The first transmission power control command is used to indicate independent closed-loop power control of a first sounding reference signal; the fifth transmission power control command is used to indicate independent closed-loop power control of a second sounding reference signal; and the sixth transmission power control command is used to indicate independent closed-loop power control of a third sounding reference signal.

64. The method of claim 63, wherein The fifth transmission power control command and the sixth transmission power control command are located in a media access control control unit, and the media access control control unit includes at least one of the following areas: a cell identifier area, a partial bandwidth identifier area, a fifth transmission power control command area, a sixth transmission power control command area, and a fifth closed-loop indicator area, wherein the fifth closed-loop indicator is used to indicate independent closed-loop power control of the second sounding reference signal or independent closed-loop power control of the third sounding reference signal.

65. A wireless communication method, executed by a base station, wherein: The method comprises: Send configuration information, wherein the configuration information includes some joint parameters, and the some joint parameters are used to indicate that the serving cell configures a joint / downlink transmission configuration indication state list and an uplink transmission configuration indication state list, the downlink transmission configuration indication state in the joint / downlink transmission configuration indication state list is used for downlink transmission and / or uplink transmission, and the uplink transmission configuration indication state in the uplink transmission configuration indication state list is only used for uplink transmission.

66. The method of claim 65, wherein When the unified transmission configuration indication state type is configured as a partial joint parameter, the MAC control unit activates at most eight groups of transmission configuration indication states, where each group of transmission configuration indication states includes a downlink transmission configuration indication state and an uplink transmission configuration indication state.

67. The method of claim 65, wherein A set of downlink transmission configuration indication states is activated via downlink control information.

68. The method of claim 65, wherein The media access control control unit includes at least one of the following areas: a cell identifier, a partial bandwidth identifier, a number of transmission configuration indication states, a downlink transmission configuration indication state identifier, and an uplink transmission configuration indication state identifier.

69. A wireless communication method, executed by a base station, wherein: The method comprises: A physical random access channel is received at a random access opportunity based on the signal quality of the synchronized broadcast block and a threshold value, wherein the threshold value is predefined or configured by a higher layer parameter.

70. The method of claim 69, wherein The receiving a physical random access channel at a random access opportunity corresponding to the selected synchronous broadcast block based on the signal quality and the threshold of the synchronous broadcast block includes: When the signal quality of the sync broadcast block is greater than or equal to the configured or threshold value, the physical random access channel is received at the random access opportunity using the spatial filter corresponding to the selected sync broadcast block; When the signal quality of the synchronization broadcast block is less than a configured or threshold value, a physical random access channel is received at a random access opportunity corresponding to the selected synchronization broadcast block using different spatial filters.

71. The method of claim 70, wherein When the signal quality of the synchronized broadcast block is greater than or equal to the threshold value, sending the first information based on the spatial filter corresponding to the selected synchronized broadcast block; When the signal quality of the synchronized broadcast block is less than a threshold value, the spatial filter corresponding to the physical random access channel implicitly indicated by the pre-configured information and the timing relationship receives the first information.

72. The method of claim 70, wherein: The system information includes a channel quality threshold and the number of physical random access channels in a physical random access channel group.

73. A wireless communication device, wherein: The wireless communication device includes: a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method as described in any one of claims 1 to 72.

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