Power control method and device, uplink transmission sending method and device

Abstract

The present invention provides a method and device for power control, and a method and device for sending uplink transmission; wherein the method for power control comprises: when a first condition is met, a first communication node determines a power control parameter for uplink transmission using a predetermined method, or the first communication node autonomously determines the power control parameter for uplink transmission. The present invention solves the problem in the related art that the base station cannot flexibly use the change of the transmission beam to change the corresponding power control parameter when scheduling uplink transmission because the terminal does not distinguish between beams.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a power control method and device, and an uplink transmission sending method and device. Background Art

[0002] One of the key features of the fifth-generation mobile communication system's new radio (NR) technology is support for high frequency bands. High frequency bands have abundant frequency domain resources, but there is a problem of small coverage due to fast attenuation of wireless signals. Sending signals in a beam manner can concentrate energy in a relatively small spatial range and improve the coverage problem of high frequency band signals. Generally, the power control parameters of uplink transmission are related to its transmitting beam. The base station can achieve the purpose of controlling the power control parameters by flexibly indicating the beam of uplink transmission. However, in some scenarios, the base station supports multiple beams, and the UE does not distinguish between beams. In this case, the base station cannot flexibly use the changes in the transmitting beam to change the corresponding power control parameters when scheduling uplink transmission.

[0003] There is currently no effective solution to the above-mentioned problems in the related art. Summary of the invention

[0004] The embodiments of the present invention provide a power control method and device, and an uplink transmission sending method and device, so as to at least solve the problem in the related art that the base station cannot flexibly use the change of the transmission beam to change the corresponding power control parameters when scheduling uplink transmission because the terminal does not distinguish between beams.

[0005] According to one embodiment of the present invention, a power control method is provided, comprising: when a first condition is met, a first communication node determines a power control parameter of an uplink transmission using a predetermined method, or the first communication node autonomously determines the power control parameter of the uplink transmission.

[0006] According to one embodiment of the present invention, a power control method is provided, comprising: when a third condition is met, a first communication node reports a measurement result to a second communication node; and the first communication node determines the power of uplink transmission according to a power control parameter sent by the second communication node.

[0007] According to one embodiment of the present invention, a power control method is provided, comprising: a first communication node receives a power control parameter sent by a second communication node; the first communication node determines the power of uplink transmission according to the power control parameter; wherein the effective time of the power control parameter is determined by one of the following methods: when the PL-RS included in the power control parameter information belongs to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received; when the PL-RS included in the power control parameter information does not belong to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received for the first time.

[0008] According to another embodiment of the present invention, a power control device is provided, which is applied to a first communication node side, and includes: a first determination module, which is used to determine the power control parameters of the uplink transmission using a predetermined method when a first condition is met, or to trigger the first communication node to autonomously determine the power control parameters of the uplink transmission.

[0009] According to another embodiment of the present invention, a power control device is provided, which is applied to the first communication node side, including: a reporting module, used to report the measurement result to the second communication node when the third condition is met; and a second determination module, used to determine the power of the uplink transmission according to the power control parameters sent by the second communication node.

[0010] According to another embodiment of the present invention, a power control device is provided, which is applied to a first communication node side, and includes: a receiving module, used to receive a power control parameter sent by a second communication node; a third determination module, used to determine the power of uplink transmission according to the power control parameter; wherein the effective time of the power control parameter is determined by one of the following methods: when the PL-RS included in the power control parameter information belongs to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received; when the PL-RS included in the power control parameter information does not belong to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received for the first time.

[0011] According to another embodiment of the present invention, a sending device for uplink transmission is also provided. The device is applied on the first communication node side, and the device includes: a fourth determination module, used to determine the sending type of uplink transmission according to reference signal information or a predetermined method; wherein the sending type of uplink transmission includes: a first type, a second type; the time interval between the first type of uplink transmission and the second type of uplink transmission is greater than or equal to a first time deviation.

[0012] According to another embodiment of the present invention, there is provided an electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0013] According to yet another embodiment of the present invention, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when run.

[0014] Through the present invention, when the first condition is met, the first communication node uses a predetermined method to determine the power control parameters of the uplink transmission, or the first communication node autonomously determines the power control parameters of the uplink transmission, thereby realizing a method in which the first communication node can autonomously determine the power control parameters, thereby solving the problem in the related art that the base station cannot flexibly use the change of the transmitting beam to change the corresponding power control parameters when scheduling uplink transmission due to the terminal not distinguishing between beams, thereby improving the flexibility of power control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of FR1 beam;

[0017] Figure 2 Schematic diagram of the beam relationship between the base station and the UE;

[0018] Figure 3 Schematic diagram of the beam relationship between the base station and the UE after training;

[0019] Figure 4 A schematic diagram of a base station and a UE selecting a beam for transmission from among the trained beams;

[0020] Figure 5 It is a hardware structure block diagram of a mobile terminal running in the steps of the method of the present application according to an embodiment of the present invention;

[0021] Figure 6 The flow chart of the power control method according to the embodiment of the present invention is as follows: Figure 1 ;

[0022] Figure 7 The flow chart of the power control method according to the embodiment of the present invention is as follows: Figure 2 ;

[0023] Figure 8The flow chart of the power control method according to the embodiment of the present invention is as follows: Figure 3 ;

[0024] Fig. 9 is a schematic diagram of deploying two transmissions on two frequency bands according to an embodiment of the present invention;

[0025] Fig.10 The structure frame of the power control device according to the embodiment of the present invention is Figure 1 ;

[0026] Fig.11 The structure frame of the power control device according to the embodiment of the present invention is Figure 2 ;

[0027] Fig.12 The structure frame of the power control device according to the embodiment of the present invention is Figure 3 . DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] The frequency bands supported by the NR system are divided into two types: Frequency Range 1 (FR1) and Frequency Range 2 (FR2), where FR1 has a lower frequency than FR2. For example, the spectrum range supported by FR1 is 410MHz to 7125MHz, and the spectrum range supported by FR2 is 24250MHz to 52600MHz. In the FR2 scenario, due to the high frequency and fast signal attenuation, beam transmission is required. Beam transmission can concentrate the energy of the signal in a specific direction, and compared with non-beam omnidirectional transmission, the energy or power utilization rate is high. In the FR2 scenario, both the base station and the UE need to support several beams when sending and receiving. Therefore, when the base station allocates uplink resources to the UE to send uplink transmission, it is necessary to instruct the UE to send the beam for uplink transmission. In the FR1 scenario, the signal attenuation is relatively slow. Generally, the base station needs to support multiple beams, while the UE does not need to support multiple beams. Therefore, when the base station allocates uplink resources to the UE to send uplink transmission, it is not necessary to instruct the UE to send the beam for uplink transmission.

[0031] The power control mechanism of the existing system associates the power control parameters with the beam indication information of the uplink transmission (the spatial relation of the sounding reference signal resource indication (SRI) of the physical uplink shared channel (PUSCH) or the physical uplink control channel (PUCCH). In the FR2 scenario, the power control parameters are indicated by indicating different uplink transmission beams. When there is no beam indication (such as FR1), the default power control parameters are used. Since the association between the power control parameters and the beam indication is configured in the Radio Resource Control (RRC), the movement or rotation of the UE will cause the beam to not match the power control parameters. The power control parameters can only be updated by the base station using high-level signaling (such as RRC signaling).

[0032] In the FR1 scenario, although there is no need to indicate the spatial relationship between the SRI and PUCCH of the PUSCH, it is still necessary to update the power control parameters because the optimal downlink beam is changing. The base station side supports 8 beams, numbered #1 to #8, and all or more of the 8 beams can be received by the UE. Assume that at a time t1, the communication between the UE and the base station's #3 beam is the best, and at time t2, the communication between the UE and the base station's #7 beam is the best. In the FR1 scenario, multiple beams (or all beams) on the base station side can receive the UE's transmission signal. From the base station side, when the best beam changes from #3 to #7, the UE's transmission power requirement does not change much. However, from the UE's point of view, at time t2, the PL measured using the #3 beam will be very large, causing the UE's uplink transmission transmission power to exceed the actual demand. At this time, the power control parameters (at least the PL-RS) need to be updated.

[0033] If PL-RS is not updated, the UE's transmit power will be too high. Although the base station can gradually reduce the excess power through TPC commands in a cumulative closed-loop power control mode by sending multiple times, the disadvantages are: 1. The adjustment process is very slow; 2. It is not suitable for absolute closed-loop power control.

[0034] like Figure 1As shown, a beam can be a resource (e.g., a transmitting end spatial filter, a receiving end spatial filter, a transmitting end precoding, a receiving end precoding, an antenna port, an antenna weight vector, an antenna weight matrix, etc.), and a beam or a beam number can be replaced by a resource index (e.g., a reference signal resource index, a spatial relationship index). Because a beam can be bound to some time-frequency code resources for transmission, a beam can also be a transmission (transmission / reception) mode; the transmission mode can include space division multiplexing, frequency domain / time domain diversity, etc. In addition, the base station end, i.e., the base station, can perform quasi co-location (QCL) configuration for two reference signals and inform the user end, i.e., the terminal (or user equipment (UE)), to describe the channel characteristic hypothesis. The parameters involved in quasi co-location include at least Doppler spread, Doppler shift, delay spread, average delay, average gain and spatial parameters. Spatial parameters can include spatial reception parameters, such as angle of arrival, spatial correlation of receiving beams, average delay, and correlation of time-frequency channel responses (including phase information).

[0035] The reference signal includes at least one of the following: Channel State Information Reference Signal (CSI-RS), Channel State Information Interference Measurement Signal (CSI-IM), Demodulation Reference Signal (DMRS), Downlink demodulation reference signal (DL DMRS), Uplink demodulation reference signal (UL DMRS), Sounding Reference Signal (SRS), Phase Tracking Reference Signals (PTRS), Random Access Channel (RACH), Synchronization Signal (SS), Synchronization Signal block (SS block, SSB), Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS).

[0036] In some technologies, beam-related operations are described as follows: the base station configures an SRS resource set (SRS resourceset) to the UE, and the SRS resource set includes at least one SRS resource (SRS resource). SRS resource sets have different uses: beam management, antenna selection, codebook, and non-codebook. Among them, SRS resource sets used for codebook and non-codebook are used for codebook-based physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission and non-codebook-based PUSCH transmission, respectively. Spatial relationships may be configured in SRS resources. When the SRS resources are configured with spatial relationships, the UE needs to send the SRS resources according to the spatial relationship of the SRS resources, that is, determine the transmit filter parameters; when the SRS resources are not configured with spatial relationships, the UE determines the transmit filter parameters by itself. The transmit filter parameters can be understood as the transmit parameters required to form a specific beam direction.

[0037] Figure 2 Schematic diagram of the beam relationship between the base station and the UE, such as Figure 2 As shown, both the base station (gNB) and the UE support multiple beams, so uplink and downlink beam training (also called beam scanning or beam management) is required. The base station first configures an SRS resource set for the UE for beam management. The SRS resources are not configured with spatial relationships, and the UE determines the transmit filter parameters for the SRS resource indicator (SRS Resource Indicator, SRI). Then, the base station selects some better beam pairs as available / alternative beam pairs based on the results of beam training, and configures an SRS resource set for codebook or non-codebook use to the UE. The SRS resource set includes at least one SRS resource. The spatial relationship of the SRS resource is expressed by the SRI of the SRS resource that the UE has sent or the downlink reference signal indication (including the reference signal resource index) or SSB indication (including the SSB index) that the base station has sent. At least one SRS resource corresponds to at least one available / alternative beam pair. Figure 3 This is a schematic diagram of the beam relationship between the base station and the UE after training. Figure 3 As shown, the SRS resource set includes two SRS resources, which are marked as SRI1 and SRI2 respectively.

[0038] In a multi-beam system, for downlink transmission, the base station indicates the transmit beam, and the UE knows that the downlink transmit beam of the base station corresponds to the best receive beam of the UE based on its own measurement results. The specific selection of which beam to receive depends on the UE. For uplink transmission, the base station indicates the transmit beam of the UE, and the base station determines the receive beam of the uplink transmission by itself. Therefore, the receive beam is transparent to the transmitter. For uplink transmission, in addition to the transmit beam, the base station also needs to configure power control parameters for the UE so that the UE can determine the power of the uplink transmission. The beam is expressed using reference signal indication information. For PUSCH transmission, the base station indicates one or more SRS resources through the SRI field in the downlink control information (Downlink Control Information, DCI), and the UE uses the same transmit filter parameters as the SRS resources corresponding to the SRI to send PUSCH, which can also be understood as using the same beam. The SRI indicated in the DCI is determined based on the SRS resource set configured by the base station. SRS resources in the SRS resource set with codebook or non-codebook purposes can be used as a reference for PUSCH transmission. Figure 4 Schematic diagram of the base station and UE selecting beams for transmission in the trained beams, as shown in Figure 4 As shown, if the SRI field in the DCI for scheduling PUSCH indicates SRI1, the UE determines the transmit filter parameters of PUSCH using the spatial relationship of the SRS resources corresponding to SRI1. For Physical Uplink Control Channel (PUCCH) transmission, its beam is expressed using the spatial relationship corresponding to the PUCCH resources.

[0039] In some technologies, the power control parameters of uplink transmission are related to the beam. For PUSCH transmission, the beam is expressed by SRI. The base station configures the power control parameter pool of PUSCH and the association between the value of the SRI field in the DCI and the various power control parameters in the power control parameter pool through high-level signaling (such as Radio Resources Control (RRC) signaling). The base station schedules uplink transmission through DCI. The DCI contains the SRI field. The power control parameters of the uplink transmission can be obtained by looking up the value of the SRI field in the DCI configured by the high-level signaling and the association between the various power control parameters in the power control parameter pool. For PUCCH transmission, the beam includes a spatial relation index. The base station configures the power control parameter pool of PUCCH through high-level signaling (such as RRC signaling). The base station also configures the spatial relationship pool of PUCCH through high-level signaling, where each spatial relationship corresponds to a set of power control parameters in the power control parameter pool of PUCCH. The base station activates the spatial relationship in the spatial relationship pool of PUCCH through the Media Access Control (MAC) layer signaling for PUCCH resources. The base station schedules PUCCH transmission through DCI, and carries information in DCI to determine the PUCCH resources. The UE can obtain the PUCCH resources and their associated spatial relationships, and then obtain the power control parameters of the PUCCH transmission.

[0040] The power control parameters include at least one or a combination of the following. 1. Open-loop power control parameters. The open-loop power control parameters can be composed of the path loss adjustment coefficient alpha and / or the target power P0. 2. The reference signal (RS) parameters for path loss (Path Loss, PL, referred to as path loss) measurement, also referred to as path loss measurement parameters, include reference signal resource index. The path loss is obtained by the reference signal measurement result identified by the reference signal index. 3. Closed-loop power control parameters. Includes at least one of the following: closed-loop power control index (also called closed-loop power control state, or closed-loop identification), closed-loop power control quantity.

[0041] The power control parameter pool is a general term for different types of pre-configured power control parameter pools. For example, the power control parameter pool includes one or more of an open-loop power control parameter pool, a path loss measurement parameter pool, and a closed-loop power control parameter pool. The open-loop power control parameter pool includes at least one open-loop power control parameter. The path loss measurement parameter pool includes at least one path loss measurement parameter. The closed-loop power control parameter pool includes at least one closed-loop power control parameter (such as a closed-loop power control index).

[0042] The power control parameter index may correspondingly include one or more of an open-loop power control parameter index, a path loss measurement parameter index, and a closed-loop power control index. The open-loop power control parameter index may be used to determine at least one open-loop power control parameter in a pre-configured open-loop power parameter pool; the path loss measurement parameter index may be used to determine at least one path loss measurement parameter in a pre-configured path loss measurement parameter pool; and the closed-loop power control index may be used to determine at least one closed-loop power control parameter in a pre-configured closed-loop power control parameter pool.

[0043] It should be noted that the method embodiment provided in the first embodiment of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 5 1 is a hardware structure diagram of a mobile terminal running in the method steps of the present application according to an embodiment of the present invention. Figure 5 As shown, the mobile terminal 10 may include one or more ( Figure 5 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (Micro Control Unit, MCU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data. Optionally, the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 5 The structure shown is for illustration only and does not limit the structure of the mobile terminal. Figure 5 More or fewer components as shown, or with Figure 5 Different configurations are shown.

[0044] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the power control method in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal 10 via a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0045] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0046] The methods in the following embodiments 1 to 4 can all be Figure 5 The hardware structure runs in.

[0047] Example 1

[0048] In this embodiment, a power control method is provided. Figure 6 The flow chart of the power control method according to the embodiment of the present invention is as follows: Figure 1 ,like Figure 6 As shown, the process includes the following steps:

[0049] Step S602: When the first condition is met, the first communication node determines the power control parameter of the uplink transmission using a predetermined method, or the first communication node determines the power control parameter of the uplink transmission autonomously.

[0050] It should be noted that the first condition in this embodiment includes at least one of the following: 1) the resources for uplink transmission are in the FR1 frequency band; wherein, the resources for uplink transmission in the FR1 frequency band can also be replaced by one of the following conditions: the first communication node is not configured with QCL (quasi-co-location) parameters of type D, or the first communication node is not configured with spatial parameters; 2) the first communication node is in RRC connected state (RRC_CONNECTED mode); 3) the first communication node is not configured with power control parameters; 4) the power control parameters of the first communication node do not exist; 5) the first communication node is configured or indicates at least one power control parameter; 6) the first communication node is configured or indicates more than one power control parameter; 7) the scheduling information of the uplink transmission does not contain reference signal information or spatial relationship information; 8) the first communication node is configured or indicated to use a predetermined method to determine the power control parameters; 9) the first communication node is configured or indicated to autonomously determine the power control parameters; 10) the first communication node is configured or indicated to allow autonomous determination of the power control parameters.

[0051] Through the above-mentioned step S602, when the first condition is met, the first communication node uses a predetermined method to determine the power control parameters of the uplink transmission, or the first communication node autonomously determines the power control parameters of the uplink transmission, thereby realizing a method in which the first communication node can autonomously determine the power control parameters, thereby solving the problem in the related technology that the base station cannot flexibly use the change of the transmitting beam to change the corresponding power control parameters when scheduling uplink transmission due to the terminal not distinguishing between beams, thereby improving the flexibility of power control.

[0052] It should be noted that the first communication node involved in the present application includes one of the following: UE, terminal, user, site.

[0053] In an optional implementation manner of the present application, for the method of autonomously determining the power control parameters by the first communication node, it can be further: the first communication node determines a reference signal RS set for measuring the path loss PL, and determines the power of the uplink transmission based on the RS set for measuring the PL.

[0054] Determining the uplink transmission power according to the RS set for measuring PL includes: obtaining at least one PL according to part or all of the RSs in the RS set for measuring PL, and determining the uplink transmission power according to the smallest one or more PL values ​​in the at least one PL.

[0055] It should be noted that the RS set for measuring PL in this embodiment includes at least one of the following: 1) the RS set for measuring PL includes at least one RS for measuring PL; 2) the RS for measuring PL includes at least one of the following: SSB, CSI-RS; 3) the RS set for measuring PL includes all or part of the SSB set of the second communication node, and / or all or part of the RS set for measuring PL configured by the second communication node for the first communication node.

[0056] It should be noted that the second communication node involved in the present application includes one of the following: base station, nodeB (NB, eNB, gNB), network side, access point (Access Ponit, AP).

[0057] In another optional implementation of this embodiment, the method steps of the present application may further include:

[0058] Step S604: When the second condition is met, the first communication node sends to the second communication node information about changes in the RS of the PL.

[0059] Among them, the second condition in this embodiment may include at least one of the following: 1) the difference between the minimum PL value in the RS set for measuring PL and the PL in use is greater than a predetermined threshold; 2) the RS corresponding to the minimum PL value in the RS set for measuring PL is different from the RS corresponding to the PL in use; 3) the RS corresponding to the minimum PL value in the RS set for measuring PL does not belong to the RS set for measuring PL configured by the second communication node; 4) the RS corresponding to the minimum PL in the RS set for measuring PL does not have a QCL relationship with the RS in the RS set for measuring PL configured by the second communication node; 5) the first communication node capability supports the change information of the RS for measuring PL sent to the second communication node; 6) the second communication node configuration allows the first communication node to send change information of the RS for measuring PL to the second communication node.

[0060] Optionally, the change information of the RS for measuring PL involved in this embodiment includes at least one of the following: 1) the difference between the minimum PL value in the RS set for measuring PL and the PL of the RS for measuring PL being used; 2) an indication that the difference between the minimum PL value in the RS set for measuring PL and the PL of the RS for measuring PL being used exceeds a threshold; 3) a status indication that the difference between the minimum PL value in the RS set for measuring PL and the RS for measuring PL being used exceeds a threshold; 4) an RS for measuring PL recommended by the first communication node.

[0061] Optionally, in this embodiment, the first communication node sends change information of the RS measuring PL to the second communication node in one of the following ways: through a power headroom report (PHR); through an independent PL or a MAC CE of the RS measuring PL; wherein, the MAC CE can be a MAC control element (CE).

[0062] Optionally, in this embodiment, the first communication node uses a predetermined method to determine the power control parameters including one of the following: 1) determining the power control parameters of the uplink transmission according to CORESET; determining the power control parameters of the uplink transmission according to the search space; wherein CORESET refers to the control resource set; 2) determining the power control parameters of the uplink transmission according to the smallest-numbered TCI state in the transmission configuration indicator (TCI) state set of the activated physical downlink shared channel (PhysicaldownlinkSharedchannel,PDSCH); 3) determining the power control parameters of the uplink transmission according to the spatial relationship associated with the SRI of the uplink transmission; 4) determining the power control parameters of the uplink transmission according to the power control parameters of the SRS resource set.

[0063] Optionally, the CORESET is determined by at least one of the following characteristics: 1) a CORESET numbered 0; 2) a CORESET with the smallest number; 3) a CORESET associated with a search space; 4) a CORESET associated with a common search space; 5) a CORESET associated with a search space with the smallest number; 6) a CORESET monitored within a recent predetermined period of time; 7) a CORESET detected on a specific bandwidth portion or carrier.

[0064] Optionally, the search space in the present application is determined by at least one of the following features: 1) a search space numbered 0; 2) a search space with the smallest number; 3) a common search space; 4) a search space associated with CORESET 0; 5) a search space monitored within a recent predetermined time period; 6) a search space of a physical downlink control channel PDCCH that schedules PDSCH transmission containing CORESET 0 information.

[0065] Optionally, the method for determining the power control parameters of the uplink transmission according to the spatial relationship associated with the SRI of the uplink transmission in the present application includes one of the following: when the spatial relationship associated with the SRI of the uplink transmission is a downlink reference signal, the downlink reference signal is the RS of the measured PL of the uplink transmission; when the spatial relationship associated with the SRI of the uplink transmission is a periodic downlink reference signal, the downlink reference signal is the RS of the measured PL of the uplink transmission.

[0066] Optionally, the SRS resource set in this embodiment includes one of the following: 1) power control parameters of an SRS resource set associated with uplink transmission; 2) power control parameters of an SRS resource set used for transmission configuration parameters of uplink transmission; 3) power control parameters of an SRS resource set used for beam management; 4) power control parameters of an SRS resource set used for antenna switching; 5) power control parameters of an SRS resource set used for positioning.

[0067] Example 2

[0068] This embodiment provides a power control method. Figure 7 The flow chart of the power control method according to the embodiment of the present invention is as follows: Figure 2 ,like Figure 7 As shown, the method includes:

[0069] Step S702: When the third condition is met, the first communication node reports the measurement result to the second communication node.

[0070] Step S704: The first communication node determines the power of uplink transmission according to the power control parameter sent by the second communication node.

[0071] Optionally, the third condition in this embodiment includes at least one of the following: the difference between the minimum PL value in the RS set measuring PL and the PL of the path loss measurement reference signal being used is greater than a preset threshold value; the time interval from the last report exceeds a preset time period.

[0072] Optionally, the measurement results in this embodiment include at least one of the following: 1) a PL difference between a minimum PL value in the RS set for measuring PL and the RS for measuring PL being used; 2) an indication that a PL difference between a minimum PL value in the RS set for measuring PL and the RS for measuring PL being used exceeds a threshold; 3) a status indication that a PL difference between a minimum PL value in the RS set for measuring PL and the RS for measuring PL being used exceeds a threshold; 4) an optimal RS for measuring PL recommended by the first communication node.

[0073] Optionally, the first communication node reports the measurement result in at least one of the following ways: through PHR; through an independent PL or MAC CE of a path loss measurement reference signal; through a channel state information (CSI) report.

[0074] It should be noted that the first condition in this embodiment includes at least one of the following: 1) the uplink transmission resource is in the FR1 frequency band; 2) the first communication node is in the RRC connected state (RRC_CONNECTED mode); 3) the first communication node is not configured with power control parameters; 4) the power control parameters of the first communication node do not exist; 5) the first communication node is configured or indicates at least one power control parameter; 6) the first communication node is configured or indicates more than one power control parameter; 7) the scheduling information of the uplink transmission does not contain spatial relationship information; 8) the first communication node is configured or indicated to use a predetermined method to determine the power control parameters; 9) the first communication node is configured or indicated to autonomously determine the power control parameters; 10) the first communication node is configured or indicated to allow autonomous determination of the power control parameters.

[0075] In an optional implementation manner of the present application, the method of autonomously determining the power control parameter by the first communication node may further include: the first communication node determines an RS set for measuring PL, and determines the power of uplink transmission according to the RS set for measuring PL.

[0076] Determining the uplink transmission power according to the RS set for measuring PL includes: obtaining at least one PL according to part or all of the RSs in the RS set for measuring PL, and determining the uplink transmission power using the smallest one or more PL values ​​in the at least one PL.

[0077] It should be noted that the RS set for measuring PL in this embodiment includes at least one of the following: 1) the RS set for measuring PL includes at least one RS for measuring PL; 2) the RS for measuring PL includes at least one of the following: SSB, CSI-RS; 3) the RS set for measuring PL includes all or part of the SSB set of the second communication node, and / or all or part of the RS set for measuring PL configured by the second communication node for the first communication node.

[0078] In another optional implementation of this embodiment, the method steps of the present application may also include:

[0079] Step S604: When the second condition is met, the first communication node sends to the second communication node the change information of the RS measuring the PL.

[0080] Among them, the second condition in this embodiment may include at least one of the following: 1) the difference between the minimum value of at least one PL currently measured and the PL in use is greater than a predetermined threshold; 2) the RS corresponding to the minimum value of at least one PL currently measured is different from the RS corresponding to the PL in use; 3) the RS corresponding to the minimum value of at least one PL currently measured does not belong to the RS set of measured PLs configured by the second communication node; 4) the RS corresponding to the minimum value of at least one PL currently measured does not have a QCL relationship with the RS in the RS set of measured PLs configured by the second communication node; 5) the first communication node capability supports the change information of the RS for measuring the PL sent to the second communication node; 6) the second communication node configuration allows the first communication node to send change information of the RS for measuring the PL to the second communication node.

[0081] Optionally, the change information of the RS for measuring PL involved in this embodiment includes at least one of the following: 1) a PL difference between a currently optimal RS for measuring PL and an RS for measuring PL currently being used; 2) an indication that a PL difference between a currently optimal RS for measuring PL and an RS for measuring PL currently being used exceeds a threshold; 3) a status indication that a PL difference between a currently optimal RS for measuring PL and an RS for measuring PL currently being used exceeds a threshold; 4) an RS for measuring PL recommended by the first communication node.

[0082] Optionally, in this embodiment, the first communication node sends the change information of the RS measuring the PL to the second communication node in one of the following ways: through the MAC CE of the power headroom report PHR; through an independent PL or a MAC CE of the RS measuring the PL.

[0083] Optionally, in this embodiment, the first communication node uses a predetermined method to determine the power control parameters including one of the following: 1) determining the power control parameters of the uplink transmission according to CORESET; determining the power control parameters of the uplink transmission according to the search space; 2) determining the power control parameters of the uplink transmission according to the TCI state with the smallest number in the TCI state set of the activated PDSCH; 3) determining the power control parameters of the uplink transmission according to the spatial relationship associated with the SRI of the uplink transmission; 4) determining the power control parameters of the uplink transmission according to the power control parameters of the SRS resource set.

[0084] Optionally, the CORESET is determined by at least one of the following characteristics: 1) a CORESET numbered 0; 2) a CORESET with the smallest number; 3) a CORESET associated with a search space; 4) a CORESET associated with a common search space; 5) a CORESET associated with a search space with the smallest number; 6) a CORESET monitored within a recent predetermined period of time; 7) a CORESET detected on a specific bandwidth portion or carrier.

[0085] Optionally, the search space in the present application is determined by at least one of the following features: 1) a search space numbered 0; 2) a search space with the smallest number; 3) a common search space; 4) a search space associated with CORESET 0; 5) a search space monitored within a recent predetermined time period; 6) a search space for a PDCCH that schedules a PDSCH transmission containing CORESET 0 information.

[0086] Optionally, the method for determining the power control parameters of the uplink transmission according to the spatial relationship associated with the SRI of the uplink transmission in the present application includes one of the following: when the spatial relationship associated with the SRI of the uplink transmission is a downlink reference signal, the downlink reference signal is the RS of the measured PL of the uplink transmission; when the spatial relationship associated with the SRI of the uplink transmission is a periodic downlink reference signal, the downlink reference signal is the RS of the measured PL of the uplink transmission.

[0087] Optionally, the SRS resource set in this embodiment includes one of the following: 1) power control parameters of an SRS resource set associated with uplink transmission; 2) power control parameters of an SRS resource set used for transmission configuration parameters of uplink transmission; 3) power control parameters of an SRS resource set used for beam management; 4) power control parameters of an SRS resource set used for antenna switching; 5) power control parameters of an SRS resource set used for positioning.

[0088] Example 3

[0089] This embodiment provides a power control method. Figure 8The flow chart of the power control method according to the embodiment of the present invention is as follows: Figure 3 ,like Figure 8 As shown, the method includes:

[0090] Step S802: The first communication node receives a power control parameter sent by the second communication node.

[0091] Step S804: The first communication node determines the power of uplink transmission according to the power control parameter.

[0092] The power control parameter is determined by at least one of the following: effective time; path loss mode.

[0093] The effective time is determined by at least one of the following: the time when the power control parameter is received; the first delayed time; the sending time of the hybrid automatic repeat-request acknowledgment signaling (HARQ-ACK) associated with the physical downlink shared channel carrying the power control parameter.

[0094] The manner of determining the power control parameter by the effective time includes one of the following:

[0095] 1) When the path loss measurement reference signal included in the power control parameter information belongs to the RS set of the measurement PL of the first communication node, it takes effect after the power control parameter is received or after the hybrid automatic repeat request confirmation signaling HARQ-ACK associated with the physical downlink shared channel carrying the power control parameter is sent;

[0096] 2) When the path loss measurement reference signal included in the power control parameter information does not belong to the RS set of the measurement PL of the first communication node, it takes effect after being delayed by the first time, or after the power control parameter is received and delayed by the first time, or after the hybrid automatic repeat request confirmation signaling HARQ-ACK associated with the physical downlink shared channel carrying the power control parameter is sent and delayed by the first time.

[0097] The path loss modes involved in this embodiment include: a high-layer filtering path loss mode or a physical layer filtering path loss mode.

[0098] In this embodiment, the path loss mode is determined by at least one of the following methods: the ability of the physical layer of the first communication node to filter the path loss; the path loss mode configured or indicated by the second communication node.

[0099] It should be noted that the high-layer filtering path loss mode, also called the layer 3 (Layer 3, L3) filtering path loss mode, is a mode that determines the PL based on the reference signal receiving power (RSRP) of the high-layer filtering. The physical layer filtering path loss mode, also called the layer 1 (Layer 1, L1) filtering path loss mode, is a mode that determines the PL based on the RSRP of the physical layer filtering.

[0100] In this embodiment, the first communication node may report whether it supports the capability of filtering path loss at the physical layer to the second communication node. Alternatively, the second communication node may configure the path loss mode through high-layer signaling, or indicate the path loss mode to the first communication node through MAC layer signaling or physical layer signaling.

[0101] In addition, when the first communication node supports the capability of filtering path loss at the physical layer, the second communication node may configure or instruct the path loss mode of the first communication node to be a high-layer path loss mode or a physical layer path loss mode.

[0102] In the case where the path loss mode of the first communication node is a physical layer path loss mode, the power control parameter is determined by the effective time, including one of the following: after the first time is delayed, or after the power control parameter is received and delayed by the first time, or after the hybrid automatic repeat request confirmation signaling HARQ-ACK associated with the physical downlink shared channel carrying the power control parameter is sent and delayed by the first time.

[0103] The first communication node receives the power control parameter in the following manner: the second communication node carries the power control parameter through RRC signaling, or the second communication node carries the power control parameter through MAC CE.

[0104] In this embodiment, the first time is determined by at least one of the following methods: the path loss measurement parameter indicated by the power control parameter information is received at least once; a predetermined duration; a duration configured by the second communication node; a duration determined according to the capability of the first communication node.

[0105] The power control parameter information received or effective before the second time when the uplink transmission starts is used to determine the transmission power of the uplink transmission.

[0106] The second time is determined by the sending or receiving time of the DCI that schedules or activates the uplink transmission, or the second time is determined by the capability of the first communication node. The second time is determined by the sending or receiving time of the DCI that schedules or activates the uplink transmission, including that the second time includes the duration from the sending or receiving time of the DCI that schedules or activates the uplink transmission to the start time of the uplink transmission.

[0107] Example 4

[0108] This embodiment provides a method for sending uplink transmission, the method comprising: determining the sending type of uplink transmission according to reference signal information or a predetermined method.

[0109] The sending types of uplink transmission include: a first type and a second type; a time interval between the first type of uplink transmission and the second type of uplink transmission is greater than or equal to a first time deviation.

[0110] It should be noted that the first type of uplink transmission and the second type of uplink transmission in this embodiment do not overlap in the time domain. The time sequence of the first type of uplink transmission and the second type of uplink transmission is not limited. The time interval between the first type of uplink transmission and the second type of uplink transmission refers to the time interval between the end time of the earlier of the two transmissions and the start time of the later transmission.

[0111] Optionally, in this embodiment, the first time offset is determined by at least one of the following methods:

[0112] The capability of the first communication node; wherein the first time deviation determined by the capability of the first communication node includes: the time for the first communication node to complete the switching of the flexible antenna between different frequency bands.

[0113] Predefined value; wherein the first time deviation determined by the predefined value includes one of the following: 0us (microseconds), 35us, 140us, 900us.

[0114] The second communication node configuration value includes the value of the first communication node notified to the UE by the second communication node through high-level signaling, MAC layer signaling or physical layer signaling. Usually, the second communication node indicates a value from a set, for example, the set includes: 0us, 35us, 140us, 900us, and the second communication node of the base station can be configured with one of them.

[0115] Optionally, in this embodiment, the transmission type includes at least one of the following features: the maximum number of ports for uplink transmission of the first type is less than or equal to the maximum number of ports for uplink transmission of the second type; the maximum power of uplink transmission of the first type is less than the maximum power of uplink transmission of the second type;

[0116] Among them, the maximum number of ports for the first type of uplink transmission in the second frequency band is less than or equal to the maximum number of ports for the second type of uplink transmission; the maximum power of the first type of uplink transmission in the second frequency band is less than the maximum power of the second type of uplink transmission; the first frequency band carries the first type of uplink transmission and cannot carry the second type of uplink transmission.

[0117] Optionally, the first frequency band is lower in frequency than the second frequency band.

[0118] Furthermore, the first type of uplink transmission is associated with a first situation, and the characteristics of the first situation include at least one of the following: a flexibly configurable antenna operates in a first frequency band; the first frequency band and the second frequency band can be transmitted in parallel; the number of transmission ports in the second frequency band is not greater than 1; the power level of the first communication node UE operating in the first frequency band is 3; the power level of the first communication node UE operating in the second frequency band is 3; the maximum power of the first communication node UE operating in the first frequency band is 23dBm; the maximum power of the first communication node UE operating in the second frequency band is 23dBm.

[0119] Optionally, the first type of uplink transmission is associated with a second scenario, and the second scenario is characterized by at least one of the following: the flexibly configurable antenna operates in the second frequency band; the first frequency band cannot be transmitted;

[0120] The number of transmission ports of the second frequency band is greater than or equal to 1; the maximum power of the second frequency band can reach 26dBm; the power level of the first communication node UE operating in the second frequency band in the second situation is 2.

[0121] Optionally, the correspondence between the antenna port and the transmitting antenna is determined by at least one of the following: antenna port number 0 corresponds to a fixed transmitting antenna; antenna port number 1 corresponds to a flexible transmitting antenna; the N1 antenna ports with the smallest antenna port numbers correspond to M1 fixed transmitting antennas; wherein N1 and M1 are non-zero integers, and N1 is less than or equal to M1.

[0122] The N2 antenna ports with the largest antenna port numbers correspond to the M2 flexibly configured transmitting antennas; wherein N2 and M2 are non-zero integers, and N2 is less than or equal to M2.

[0123] Antenna port number 0 corresponds to a fixed transmit antenna and a flexibly configurable transmit antenna.

[0124] Among them, the correspondence between the antenna port and the transmitting antenna is determined by at least one of the following: the antenna port of the first frequency band working in the first situation corresponds to the flexibly configured transmitting antenna; the antenna port of the second frequency band working in the first situation corresponds to the fixed transmitting antenna; the antenna port numbered 0 of the second frequency band working in the second situation corresponds to the fixed transmitting antenna; the antenna port numbered 1 of the second frequency band working in the second situation corresponds to the flexibly configured transmitting antenna; the N1 antenna ports with the smallest antenna port number working in the second frequency band of the second situation correspond to the fixed M1 transmitting antennas; wherein N1 and M1 are non-zero integers, and N1 is less than or equal to M1.

[0125] It should be noted that the N2 antenna ports with the largest antenna port number of the second frequency band operating in the second scenario correspond to the M2 flexibly configured transmit antennas; wherein N2 and M2 are non-zero integers, and N2 is less than or equal to M2. And the antenna port number 0 of the second frequency band operating in the second scenario corresponds to the fixed transmit antenna and the flexibly configured transmit antenna.

[0126] The first communication node sends the correspondence between the antenna port and the transmitting antenna to the second communication node.

[0127] The first communication node sends the correspondence between the antenna port and the transmitting antenna to the second communication node, including one of the following:

[0128] The first communication node sends the corresponding relationship between each antenna port and the transmitting antenna to the second communication node;

[0129] The first communication node sends a fixed correspondence between a transmitting antenna and an antenna port to the second communication node.

[0130] Optionally, in this embodiment, determining the sending type of the uplink transmission in a predetermined manner includes at least one of the following: determining the sending type of the uplink transmission according to a frame structure pattern; determining the sending type of the uplink transmission according to time configuration parameters of the first situation and / or the second situation; determining the sending type of the uplink transmission according to whether the first situation and / or the second situation is turned on or off; determining the sending type of the uplink transmission according to a default situation; determining the sending type of the uplink transmission according to the transmitted BWP.

[0131] Among them, when the uplink transmission is the transmission of the first frequency band, the transmission type of the uplink transmission is the first type; when the uplink transmission is the transmission of the second frequency band and the number of non-zero power transmission ports of the uplink transmission is greater than 1, the transmission type of the uplink transmission is the second type.

[0132] Optionally, the uplink transmission in this embodiment includes at least one of the following: SRS transmission, PUSCH transmission, and PUCCH transmission.

[0133] The reference signal information includes one of the following: an SRS resource, an SRS resource set, and an SRS resource indication.

[0134] Optionally, the reference signal information in this embodiment includes at least one of the following characteristics: the reference signal information is associated with the first type and / or the second type; the reference signal information is associated with the first situation and / or the second situation.

[0135] The association of the reference signal information with the first situation and / or the second situation includes one of the following: the SRS resource is associated with the first situation and / or the second situation; the SRS resource set is associated with the first situation and / or the second situation.

[0136] Optionally, in this embodiment, the association between the reference signal information and the first situation and / or the second situation may be determined according to one of the following: the number of the reference signal information; the purpose of the reference signal information; and pre-configuration information.

[0137] The association between the reference signal information and the first type and / or the second type is determined according to one of the following: the number of the reference signal information; the purpose of the reference signal information; and pre-configuration information.

[0138] Different SRS resources of the SRS resource set respectively associated with the first situation (type) and the second situation (type) have the same time domain parameters.

[0139] Different SRS resources of the SRS resource set respectively associated with the first case (type) and the second case (type) have the same frequency domain parameters.

[0140] All SRS resources with port number 1 in the SRS resource set correspond to fixed transmitting antennas; the smallest numbered N3 SRS resources with port number 1 in the SRS resource set correspond to M3 fixed transmitting antennas; wherein N3 and M3 are non-zero integers, and N3 is less than or equal to M3.

[0141] Optionally, in this embodiment, determining the transmission type of uplink transmission according to reference signal information or a predetermined method includes at least one of the following: the transmission type of SRS transmission associated with the first situation is the first type; the transmission type of SRS transmission associated with the second situation is the second type; the transmission type of PUSCH transmission with reference to reference signal information associated with the first situation is the first type; the transmission type of PUSCH transmission with reference to reference signal information associated with the second situation is the second type; the transmission type of PUSCH transmission whose scheduling information includes reference signal information associated with the first situation is the first type; the transmission type of PUSCH transmission whose scheduling information includes reference signal information associated with the second situation is the second type; the transmission type of SRS transmission of different SRS resources of the SRS resource set associated with the first situation and the second situation is the second type.

[0142] When the transmission type of the SRS transmission associated with the second situation is the first type, only SRS transmissions whose port numbers from small to large are the number of ports supported by the first type are transmitted.

[0143] The first type and the second type of uplink transmission refer to reference signal information associated with the first case and the second case, respectively.

[0144] The first type and the second type of uplink transmission references are associated with reference signal information of the second scenario.

[0145] For example, the number of ports supported by the SRS transmission associated with the second situation is 2, and assuming that the number of ports supported by the first type is 1, the SRS transmission associated with the second situation only sends the SRS transmission of port 0.

[0146] Further, determining the transmission type of the uplink transmission according to the reference signal information or the predetermined method further includes at least one of the following: the transmission type of the PUCCH transmission referring to the reference signal information associated to the first situation is the first type;

[0147] The transmission type of the PUCCH transmission referring to the reference signal information associated to the second case is the second type.

[0148] The PUSCH transmission with reference to the reference signal information associated with the first situation means that the scheduling information or the grant information of the PUSCH transmission, or the DCI including the scheduling information includes the reference signal information associated with the first situation.

[0149] The PUCCH transmission referring to the reference signal information associated with the first scenario means that the spatial relationship information transmitted by the PUCCH includes the reference signal information.

[0150] The uplink transmission reference signal information refers to the reference signal information included in the scheduling information of the uplink transmission. That is, the transmission parameters of the uplink transmission are determined by the reference signal information. The transmission parameters include at least one of the following: antenna port, filter parameter, precoding parameter.

[0151] Optionally, in this embodiment, the time interval between the first type of uplink transmission and the second type of uplink transmission is greater than or equal to the first time offset, including one of the following:

[0152] When the first type of uplink transmission and the second type of uplink transmission belong to the same SRS resource set, the first time offset is determined according to the time offset configured in the SRS resource set, or a predetermined value;

[0153] When the first type of uplink transmission and the second type of uplink transmission belong to different SRS resource sets, the first time deviation is determined according to a predetermined value, or a BWP or component carrier (CC) time deviation of the SRS transmission, or is determined according to the time deviation of the first communication node UE; wherein, when different SRS resource sets are used to distinguish the first situation and the second situation, the second communication node base station needs to indicate the SRS resource set ID to the first communication node UE.

[0154] The present embodiment is described in detail below in conjunction with specific implementation methods;

[0155] like Fig. 9As shown, two transmissions are deployed on two frequency bands. Here, carrier aggregation (CA) is used as an example for description, where CC1 and CC2 represent two frequency bands. CC is a component carrier in CA. CC1 is a frequency band with a lower frequency (referred to as the lower frequency band for short), and CC2 is a frequency band with a higher frequency (referred to as the higher frequency band for short). Transmission in the lower frequency band generally uses one antenna, while transmission in the higher frequency band can use multiple antennas to obtain better performance, such as two antennas. In this way, the UE needs three antennas to achieve independent transmission of the above two frequency bands. In fact, from the perspective of reducing costs, the UE only needs to configure two antennas, one of which is fixedly configured in one frequency band (referred to as a fixed antenna), for example, the higher frequency band CC2, and the other antenna is a flexibly configurable antenna (referred to as a flexible antenna), which can be switched between CC1 and CC2 in time division. In the time domain, there are two cases, namely the first case and the second case, which can also be referred to as case 1 and case 2. The first case and the second case can also be referred to as case numbered 1 and case numbered 2, respectively. In the first case, the flexibly configurable antenna operates in a lower frequency band. At this time, the lower frequency band and the higher frequency band each have an antenna that can transmit independently; in the second case, the flexibly configurable antenna operates in the higher frequency band and transmits together with the fixedly configured antenna. At this time, there is no antenna available in the lower frequency band and no transmission can be performed.

[0156] In addition to the above two frequency bands being CC1 and CC2, the two frequency bands may also be replaced by other scenarios, such as the lower frequency band being Long Term Evolution (LTE) and the higher frequency band being NR. Or, the lower frequency band being Supplementary Uplink (SUL) and the higher frequency band being Uplink (UL) (also called nonSUL UL, normal UL), etc.

[0157] When the UE needs to transmit in the low frequency band, it operates in the first situation. When the UE needs to use two ports for transmission in the high frequency band, or needs to transmit at high power, it operates in the second situation. If there is no need for another situation, the UE keeps operating in the current situation.

[0158] In the above scenario, the relationship between the first scenario and the second scenario and the SRS transmission and the PUSCH transmission is not clear, which will be described in detail below.

[0159] The number of the situation to which the transmission period belongs, that is, the first situation or the second situation, is determined according to at least one of the following:

[0160] Booking method;

[0161] The number of the situation to which the transmission period belongs is determined according to the predetermined method, including one of the following:

[0162] The base station configures time parameters for the first scenario and the second scenario.

[0163] In one implementation of this embodiment: the time periods of the first situation and the second situation are repeated in a periodic manner. For example, the base station configures the period of the first situation and the second situation, and the time or proportion of the first situation or the second situation in the period.

[0164] In another implementation manner of this embodiment: determining whether the transmission time period belongs to the first situation or the second situation according to a preconfigured frame structure pattern.

[0165] The base station turns on or off the first situation, and / or the base station turns on or off the second situation.

[0166] 1) The base station only configures or indicates the opening or closing of the first situation or the second situation. At this time, all time periods can only belong to the first situation or the second situation, that is, when the first situation is closed, the second situation is opened, and when the first situation is opened, the second situation is closed.

[0167] 2) The base station configures or instructs the first situation and the second situation to be turned on or off. The two situations cannot be turned on at the same time, but can be turned off at the same time.

[0168] Default scenario: When the time interval from the end time of the PDCCH containing the scheduling information for transmission to the start time of transmission is less than a predetermined threshold, that is, there is no ability to switch to the scenario associated with the transmission before the start time of the transmission, the default scenario is used to determine the scenario number of the transmission time period, such as the first scenario.

[0169] BWP: Different situations are associated with different BWPs (Bandwidth Parts). Different BWPIDs are used to indicate the uplink transmission situation.

[0170] Number of the situation associated with the transmission: The number of the situation to which the transmission period belongs is determined according to the number of the situation associated with the transmission.

[0171] 1) The number associated with the transmission is consistent with the number of the situation to which the transmission period belongs.

[0172] For example, when the UE sends an SRS transmission, when the SRS transmission is associated with the first situation, the time period occupied by the SRS transmission belongs to the first situation.

[0173] For another example, when the UE sends a PUSCH transmission, when the PUSCH transmission is associated with the second situation, the time period occupied by the PUSCH transmission belongs to the second situation.

[0174] 2) When the time interval from the end time of the PDCCH containing the transmission scheduling information to the start time of the transmission is greater than or equal to the predetermined threshold, that is, it is possible to switch to the situation associated with the transmission before the start time of the transmission, the number associated with the transmission is consistent with the number of the situation to which the transmission time period belongs.

[0175] The UE determines the association of a reference signal with the first situation and / or the second situation. The reference signal includes at least one of the following: SRS, CSI-RS, DMRS, SSB. The following takes SRS as an example for detailed description.

[0176] The SRS information includes one of the following: an SRS resource, an SRS resource set, or an SRS resource indication.

[0177] Determining association of the SRS information with the first situation and / or the second situation. Including at least one of the following:

[0178] The purpose of configuring the SRS information by the base station is the first situation and / or the second situation, that is, the SRS information is associated with the first situation and / or the second situation respectively.

[0179] The usage of the SRS information includes at least one of the following: a first situation and a second situation.

[0180] For example, when the SRS information is an SRS resource set, the purpose of the SRS resource set is set to the first situation or the second situation, and the SRS resource set is associated with the first situation or the second situation, respectively. When the SRS information is an SRS resource, the purpose of the SRS resource is set to the first situation or the second situation, and the SRS resource is associated with the first situation or the second situation, respectively.

[0181] The association between the SRS information and the first situation and / or the second situation is determined according to the number of the SRS information.

[0182] 1) The SRS information with the smallest number is associated with the first situation, and the SRS information with the largest number is associated with the second situation.

[0183] For example, there are two SRS resources in the SRS resource set, which are numbered 0 and 1. When the reference signal information is an SRS resource, SRS resource number 0 is associated with the first situation, and SRS resource number 1 is associated with the second situation.

[0184] For another example, there are 3 SRS resources in the SRS resource set, numbered 0, 1 and 2, then SRS resource number 0 is associated with the first situation, and SRS resource numbers 1 and 2 are associated with the second situation. SRS resource number 1 is configured with 1 port, and SRS resource number 2 is configured with 2 ports.

[0185] 2) The SRS information with the smallest number is associated with the second situation, and the SRS information with the largest number is associated with the first situation.

[0186] An association between the SRS information and the first situation and / or the second situation is determined according to the preconfigured information.

[0187] For example, when the SRS information is an SRS resource set, the SRS resource set is associated with the first situation or the second situation by high-level signaling configuration. When the SRS information is an SRS resource, the SRS resource is associated with the first situation or the second situation by high-level signaling configuration.

[0188] The UE determines a sending mode of SRS transmission according to the association between the SRS and the first situation and / or the second situation. This includes at least one of the following:

[0189] Sending SRS transmission only during the period of the SRS-associated situation. Sending SRS transmission only during the period of the SRS-associated situation includes one of the following:

[0190] When the number of the situation to which the transmission time period belongs is determined according to a predetermined method, an SRS associated with the first situation is sent in the time period of the first situation, and an SRS associated with the second situation is sent in the time period of the second situation.

[0191] When determining the number of the situation to which the transmission time period belongs according to the number of the situation associated with the transmission, when the time interval from the end time of the PDCCH containing the scheduling information of the SRS transmission to the start time of the SRS transmission is greater than or equal to the predetermined threshold, that is, it is possible to switch to the situation associated with the SRS transmission before the start time of the SRS transmission, then the number associated with the SRS transmission is consistent with the number of the situation to which the SRS transmission time period belongs; when the time interval from the end time of the PDCCH containing the scheduling information of the transmission to the start time of the SRS transmission is less than the predetermined threshold, that is, it is not possible to switch to the situation associated with the SRS transmission before the start time of the transmission, then the default situation is used to determine the situation number of the SRS transmission time period, such as the first situation.

[0192] When determining the number of the situation to which the transmission period belongs according to the number of the situation associated with the transmission, the time offset between the SRS resources associated with the first situation and the SRS resources associated with the second situation in the SRS resource set is predetermined or configured by RRC signaling.

[0193] It is supported to send the SRS associated with the first situation during the period of the second situation.

[0194] When the UE is in the second situation, the SRS transmission associated with the first situation can be sent without switching to the first situation. The second situation may be a situation to which the time period of the transmission belongs is determined according to a predetermined method or a number of the situation associated with the transmission.

[0195] For example, when SRS resource 1 and SRS resource 2 are configured in an SRS resource set, they are associated with the first situation and the second situation respectively. When the UE is in the first situation, only SRS resource 1 is sent; when the UE is in the second situation, both SRS resource 1 and SRS resource 2 can be sent without switching to the first situation to send SRS resource 1.

[0196] For another example, when SRS resource 1, SRS resource 2, and SRS resource 3 are configured in an SRS resource set, SRS resource 1 is associated with the first situation and supports 1 port, SRS resource 2 is associated with the second situation and supports 1 port, and SRS resource 3 is associated with the second situation and supports 2 ports. When the UE is in the first situation, only SRS resource 1 is sent; when the UE is in the second situation, SRS resource 1, SRS resource 2, and SRS resource 3 can all be sent without switching to the first situation to send SRS resource 1.

[0197] Supports SRS transmitted only during the period of the second situation, that is, SRS resources associated with the first situation are not transmitted.

[0198] For PUSCH transmission associated with the first case, one of the following is used to determine the transmission parameters of the PUSCH transmission associated with the first case:

[0199] The measurement results of some ports in the SRS associated with the second situation and sent during the time period of the second situation;

[0200] Some of the ports in the SRS associated with the second scenario refer to ports corresponding to the ports associated with the SRS in the first scenario. For example, SRS resource 1 is associated with the second scenario, 2 ports are configured, of which port 0 corresponds to the port associated with the SRS in the first scenario, then the measurement result of port 0 of the 2 ports of SRS resource 1 can be used as the measurement result of the SRS associated with the first scenario.

[0201] The correspondence between some ports in the SRS associated with the second situation and ports associated with the SRS of the first situation is predefined, or determined by the UE and reported to the base station.

[0202] The antennas of some ports in the SRS associated with the second situation and sent in the time period of the second situation are consistent with the antennas of the ports associated with the SRS of the first situation; for example, SRS resource 1 is associated with the second situation and is configured with 2 ports, of which port 0 corresponds to a fixed antenna and port 1 corresponds to a flexibly configured antenna, and the SRS resource associated with the first situation also corresponds to a fixed antenna, so the measurement result of port 0 of SRS resource 1 can be used as the measurement result of the SRS associated with the first situation.

[0203] The correspondence between ports and antennas:

[0204] Mode 1: Fixed-configuration antennas correspond to port 0, and flexibly-configured antennas correspond to port 1;

[0205] Mode 2: Fixed-configuration antennas and flexibly-configured antennas correspond to port 0;

[0206] Mode 3: The correspondence between the fixedly configured antennas and the flexibly configured antennas and the port numbers is flexibly configured.

[0207] a measurement result of the SRS associated with the first situation and sent during the time period of the second situation;

[0208] The measurement result of the SRS associated with the first situation sent during the period of the first situation.

[0209] Further, for the PUSCH transmission associated with the first situation, the result closest to the PUSCH transmission among the above results is used to determine the transmission parameters of the PUSCH transmission associated with the first situation.

[0210] 1) The SRS resource may also not be associated with the scenario number, and the measurement result of the SRS may be selected based on the first scenario or the second scenario to which the PUSCH transmission belongs. For example, the PUSCH transmission transmitted in the time period of the first scenario uses the measurement result of port 0 of the SRS. The PUSCH transmission transmitted in the time period of the second scenario uses the measurement result of the port corresponding to the PUSCH of the SRS. The port of the PUSCH may be one virtual port, or one or two of two ports.

[0211] 2) The time-frequency domain resources of multiple SRS resources associated with different situation numbers are the same. In the time period of the first situation, only the SRS resource of one port is sent, and in the time period of the second situation, the SRS resources of all ports are sent.

[0212] When mode 1 supporting full-power transmission is used, the SRS resource set includes two SRS resources, which are respectively configured with one port and two ports, and are associated with the first situation and the second situation, respectively.

[0213] When mode 2 supporting full-power transmission is used, the SRS resource set includes 2 SRS resources, which are configured with 1 port and 1 port respectively, and are associated with the first situation and the second situation respectively.

[0214] Furthermore, when supporting multiple beams, multiple spatial relationships or multiple antenna panels, and supporting mode 1 of full-power transmission, in the SRS resource set, each SRS resource group associated with each beam or spatial relationship or antenna panel includes 2 SRS resources, which are respectively configured with 1 port and 2 ports, and are respectively associated with the first situation and the second situation.

[0215] When supporting multiple beams, multiple spatial relationships or multiple antenna panels, and supporting mode 2 of full-power transmission, in the SRS resource set, each SRS resource group associated with each beam or spatial relationship or antenna panel includes 2 SRS resources, which are respectively configured with 1 port and 1 port, and are associated with the first situation and the second situation, respectively.

[0216] The uplink transmission transmission mode is determined according to the reference signal information or a predetermined mode. The uplink transmission transmission mode includes one of the following: the uplink transmission transmission period belongs to the first situation; the uplink transmission transmission period belongs to the second situation.

[0217] The uplink transmission includes at least one of the following: SRS transmission, PUSCH transmission, and PUCCH transmission. The following takes PUSCH transmission as an example to explain in detail the relationship between PUSCH and SRS and situations.

[0218] When the uplink transmission is PUSCH transmission, the reference signal information is SRI included in the DCI that schedules the PUSCH transmission.

[0219] For example, the base station schedules or triggers the UE to send a PUSCH transmission, indicating an SRI (SRS Resource Indicator), where the SRI is the index of an SRS resource in an SRS resource set, wherein the purpose of the SRS resource set is the same as the transmission configuration parameter of the PUSCH. The PUSCH transmission is consistent with the situation associated with the SRS resource indicated by the SRI, for example, the first situation or the second situation.

[0220] When the uplink transmission is PUSCH transmission, the reference signal information is an SRS resource set or an SRS resource set number included in the DCI for scheduling the PUSCH transmission.

[0221] The base station schedules or triggers the UE to send PUSCH transmission, indicating the SRS resource set number and SRI (SRS Resource Indicator), where SRI is the index of the SRS resource in the SRS resource set, where the purpose of the SRS resource set is the same as the transmission configuration parameter of the PUSCH. The situation associated with the PUSCH transmission and the SRS resource set is consistent. For example, the first situation or the second situation.

[0222] Different SRS resources are associated with different cases, and the associated cases are obtained through SRI when scheduling PUSCH.

[0223] Different SRS resource sets are associated with different cases, and the associated case is obtained through the SRS resource set number when scheduling PUSCH.

[0224] When the number of the situation to which the transmission time period belongs is determined according to a predetermined method, the base station ensures that the situation associated with the scheduled PUSCH transmission is consistent with the situation to which the transmission time period belongs.

[0225] When there is inconsistency, when the PUSCH transmission associated with the second situation is sent during the period of the first situation, the PUSCH transmission is sent using only one port;

[0226] When they are inconsistent, when the PUSCH transmission associated with the first situation is sent in the time period of the second situation, the PUSCH transmission is sent using only one port corresponding to the first situation among the multiple ports of the second situation.

[0227] When determining the number of the situation to which the transmission period belongs according to the number of the situation associated with the transmission, the interval between the transmission scheduling information and the transmission must be greater than a predetermined threshold, so as to ensure that there is enough time for the UE to switch between different situations.

[0228] The PUSCH transmission references the SRS that is consistent with the situation associated with itself. For example, for CC2, the situation associated with the SRS resource corresponding to the SRI in the DCI containing the scheduling information for the PUSCH transmission is consistent with the situation associated with the PUSCH transmission. There are two situations: When the situation associated with the PUSCH is determined according to the time domain parameters of the PUSCH transmission, that is, the number of the situation to which the transmission time period belongs is determined according to a predetermined method, at this time, the situation associated with the SRS resource corresponding to the SRI is consistent with the situation associated with the PUSCH transmission. When the number of the situation to which the transmission time period belongs is determined according to the number of the situation associated with the transmission, the situation associated with the PUSCH is also consistent with the situation associated with the SRI.

[0229] Another implementation manner: the PUSCH transmission associated with the first situation may refer to the SRS associated with the second situation. For example, the SRS resource associated with the second situation is configured with two ports, and the PUSCH transmission associated with the first situation refers to one of the two ports.

[0230] The following describes the Transmitted Precoding Matrix Indicator (TPMI) indication in conjunction with Table 1.

[0231] When the PUSCH transmission is associated with the first situation, the PUSCH transmission is a 1-port transmission and does not require a TPMI indication.

[0232] When PUSCH transmission is associated with the second situation, and the number of ports configured for the SRS resource associated with its SRI is 1, the PUSCH transmission is 1-port transmission, and TPMI indication is not required.

[0233] When PUSCH transmission is associated with the second situation, and the number of ports configured by the SRS resource associated with its SRI is greater than or equal to 1, the PUSCH transmission also requires a TPMI indication. Assuming that the number of ports configured by the SRS resource associated with its SRI is 2, the TPMI indication uses a precoding codebook parsing of 2 ports.

[0234] When the UE works in the second situation, the base station schedules the UE to send PUSCH transmission, and the codeword of its TPMI is When the antenna corresponding to port 0 is a fixed antenna, this PUSCH transmission can be a transmission associated with the second situation or a transmission associated with the first situation; when the antenna corresponding to port 0 is a flexible antenna, this PUSCH transmission is a transmission associated with the second situation.

[0235] On the second carrier, the first and second scenarios can be distinguished by TPMI. The second scenario supports the precoding codebook of 2 ports, while the first scenario can only use some of the codewords. For example, the transmission of the second scenario can use all the codewords in the following table, while the transmission of the first scenario can only use one codeword

[0236] When the UE operates in the second scenario, the first PUSCH transmission uses the codeword When the second PUSCH transmission uses other codewords, the time interval between the first PUSCH transmission and the second PUSCH transmission needs to be greater than the predetermined time.

[0237] The switching time between the transmission sent in the first case and the transmission sent in the second case, that is, the end time of the earlier sent transmission and the start time of the later sent transmission is not less than a predetermined time interval, or not less than a time interval determined according to UE capabilities.

[0238] On the second carrier, PUSCH transmission 1 ending at time t1 uses SRI1 as a reference, and PUSCH transmission 2 starting at time t2 uses SRI2 as a reference, wherein time t1 is earlier than time t2, SRI1 is associated with the first situation, SRI2 is associated with the second situation, and the difference between t1 and t2 is not less than a predetermined time interval, or not less than a time interval determined according to the UE capability.

[0239] On the second carrier, PUSCH transmission 3 ending at time t3 uses SRI2 as a reference, and PUSCH transmission 4 starting at time t4 uses SRI1 as a reference, wherein time t3 is earlier than time t4, SRI1 is associated with the first situation, SRI2 is associated with the second situation, and the difference between t3 and t4 is not less than a predetermined time interval, or not less than a time interval determined according to the UE capability.

[0240] It should be noted that in the present application, the first situation corresponds to the first type, and the second situation corresponds to the second type.

[0241]

[0242]

[0243] Table 1

[0244] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / random access memory (RAM), a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0245] Example 5

[0246] In this embodiment, a power control device is also provided, which is used to implement the above-mentioned embodiments and optional implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0247] Fig.10 The structure frame of the power control device according to the embodiment of the present invention is Figure 1 , the device applies the first communication node side, such as Fig.10 As shown, the device includes: a first determination module 102, which is used to determine the power control parameters of the uplink transmission using a predetermined method when a first condition is met, or to trigger the first communication node to autonomously determine the power control parameters of the uplink transmission.

[0248] Example 6

[0249] Fig.11 The structure frame of the power control device according to the embodiment of the present invention is Figure 2 , the device is applied to the first communication node side, such as Fig.11As shown, the device includes: a reporting module 112, used to report the measurement results to the second communication node when the third condition is met; a second determination module 114, coupled to the reporting module 112, used to determine the power of the uplink transmission according to the power control parameters sent by the second communication node.

[0250] Optionally, the third condition in this embodiment includes at least one of the following: the difference between the PL of the optimal PL-RS and the PL-RS in use is greater than a preset threshold; the time interval from the last report exceeds a preset time period.

[0251] Optionally, the measurement results in this embodiment include at least one of the following: 1) a PL difference between a currently optimal RS for measuring PL and an RS for measuring PL currently being used; 2) an indication that a PL difference between a currently optimal RS for measuring PL and an RS for measuring PL currently being used exceeds a threshold; 3) a status indication that a PL difference between a currently optimal RS for measuring PL and an RS for measuring PL currently being used exceeds a threshold; 4) an optimal RS for measuring PL recommended by the first communication node.

[0252] Optionally, the first communication node reports the measurement result in at least one of the following ways: through MAC CE of PHR; through MAC CE of independent PL or PL-RS; through CSI report.

[0253] Example 7

[0254] Fig.12 The structure frame of the power control device according to the embodiment of the present invention is Figure 3 , the device applies the first communication node side, such as Fig.12 As shown, the device includes: a receiving module 122, used to receive a power control parameter sent by a second communication node; a third determination module 124, used to determine the power of uplink transmission according to the power control parameter; wherein the effective time of the power control parameter is determined by one of the following methods: when the PL-RS included in the power control parameter information belongs to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received; when the PL-RS included in the power control parameter information does not belong to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received for the first time.

[0255] Optionally, in this embodiment, the receiving module 102 receives the power control parameter in the following manner: the second communication node carries the power control parameter through RRC signaling, or the second communication node carries the power control parameter through MAC CE.

[0256] Optionally, the first time is determined by at least one of the following methods: after the PL-RS indicated by the power control parameter information is sent at least once; a predefined duration; a duration determined according to UE capabilities.

[0257] It should be noted that the power control parameter information received or effective before the second time when the uplink transmission starts is used to determine the transmission power of the uplink transmission.

[0258] Optionally, the second time is determined by the sending or receiving time of the DCI that schedules or activates the uplink transmission, or the second time is determined by the UE capability.

[0259] Optionally, the second time is determined by the sending or receiving time of the DCI that schedules or activates the uplink transmission, including that the second time includes the duration from the sending or receiving time of the DCI that schedules or activates the uplink transmission to the start time of the uplink transmission.

[0260] Example 8

[0261] An embodiment of the present invention provides a sending device for uplink transmission, the device is applied to a first communication node side, and the device includes: a fourth determination module, configured to determine a sending type of uplink transmission according to reference signal information or a predetermined method;

[0262] The sending types of the uplink transmission include: a first type and a second type; and the time interval between the first type of uplink transmission and the second type of uplink transmission is greater than or equal to a first time deviation.

[0263] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0264] Example 9

[0265] An embodiment of the present invention further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0266] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0267] S1, when the first condition is met, the first communication node determines the power control parameter of the uplink transmission using a predetermined method, or the first communication node determines the power control parameter of the uplink transmission autonomously.

[0268] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0269] S1, when the third condition is met, the first communication node reports the measurement result to the second communication node;

[0270] S2, the first communication node determines the power of uplink transmission according to the power control parameter sent by the second communication node.

[0271] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0272] S1, a first communication node receives a power control parameter sent by a second communication node;

[0273] S2, the first communication node determines the power of uplink transmission according to the power control parameter; wherein, the effective time of the power control parameter is determined by one of the following methods: when the PL-RS included in the power control parameter information belongs to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received; when the PL-RS included in the power control parameter information does not belong to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received for the first time.

[0274] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0275] S1, determining a transmission type of uplink transmission according to reference signal information or a predetermined method;

[0276] The sending types of the uplink transmission include: a first type and a second type; and the time interval between the first type of uplink transmission and the second type of uplink transmission is greater than or equal to a first time deviation.

[0277] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a ROM, a RAM, a mobile hard disk, a magnetic disk, or an optical disk.

[0278] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0279] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0280] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0281] S1, when the first condition is met, the first communication node determines the power control parameter of the uplink transmission using a predetermined method, or the first communication node determines the power control parameter of the uplink transmission autonomously.

[0282] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0283] S1, when the third condition is met, the first communication node reports the measurement result to the second communication node;

[0284] S2, the first communication node determines the power of uplink transmission according to the power control parameter sent by the second communication node.

[0285] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0286] S1, a first communication node receives a power control parameter sent by a second communication node;

[0287] S2, the first communication node determines the power of uplink transmission according to the power control parameter; wherein, the effective time of the power control parameter is determined by one of the following methods: when the PL-RS included in the power control parameter information belongs to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received; when the PL-RS included in the power control parameter information does not belong to the RS set of the measurement PL of the first communication node, the power control parameter becomes effective after being correctly received for the first time.

[0288] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0289] S1. Determine the transmission type of uplink transmission according to reference signal information or a predetermined method.

[0290] The sending types of the uplink transmission include: a first type and a second type; and the time interval between the first type of uplink transmission and the second type of uplink transmission is greater than or equal to a first time deviation.

[0291] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0292] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0293] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power control method, characterized in that: include: The first communication node receives a power control parameter sent by the second communication node; The first communication node determines the power of uplink transmission according to the power control parameter and the effective time of the power control parameter; wherein the effective time is determined by: a transmission time of a hybrid automatic repeat request acknowledgment signaling HARQ-ACK associated with a physical downlink shared channel carrying the power control parameter; and delaying the first time; The first time is determined by at least one of the following methods: The path loss measurement parameter indicated by the power control parameter information is received at least once; the duration of the reservation; a duration configured by the second communication node; The duration is determined according to the capability of the first communication node.

2. The method according to claim 1, characterized in that When the path loss measurement reference signal included in the power control parameter information does not belong to the RS set of the measurement PL of the first communication node, the effective time is determined by the transmission time of the HARQ-ACK associated with the PDSCH carrying the power control parameter and the delayed first time.

3. The method according to claim 1, characterized in that: The power control parameter is further determined by a path loss mode, wherein the path loss mode includes: a high-layer filtering path loss mode or a physical layer filtering path loss mode; The path loss mode is determined according to at least one of the following: the ability of the physical layer of the first communication node to filter the path loss; and the path loss mode configured or indicated by the second communication node.

4. The method according to claim 1, characterized in that: The power control parameter is further determined by a path loss mode. When the path loss mode of the first communication node is a physical layer filtering path loss mode, the effective time is determined by: The power control parameter is received at a time, and delayed for a first time; Or the sending time of the hybrid automatic repeat request acknowledgment signaling HARQ-ACK associated with the physical downlink shared channel PDSCH carrying the power control parameter, and the delayed first time.

5. The method according to claim 1, characterized in that The second communication node carries the power control parameter via MAC CE.

6. An electronic device comprising a memory and a processor, characterized in that: The memory stores a computer program, and the processor is configured to run the computer program to perform a power control method, the method comprising: The first communication node receives a power control parameter sent by the second communication node; The first communication node determines the power of uplink transmission according to the power control parameter and the effective time of the power control parameter; The effective time is determined by: a transmission time of a hybrid automatic repeat request acknowledgment signaling HARQ-ACK associated with a physical downlink shared channel carrying the power control parameter; and delaying the first time; The first time is determined by at least one of the following methods: The path loss measurement parameter indicated by the power control parameter information is received at least once; the duration of the reservation; a duration configured by the second communication node; The duration is determined according to the capability of the first communication node.

7. The electronic device according to claim 6, characterized in that: The second communication node carries the power control parameter via MAC CE.

8. The electronic device according to claim 6, characterized in that: When the path loss measurement reference signal included in the power control parameter information does not belong to the RS set of the measurement PL of the first communication node, the effective time is determined by the transmission time of the HARQ-ACK associated with the PDSCH carrying the power control parameter and the delayed first time.

9. The electronic device according to claim 6, characterized in that: The power control parameter is further determined by a path loss mode, wherein the path loss mode includes: a high-layer filtering path loss mode or a physical layer filtering path loss mode; The path loss mode is determined according to at least one of the following: the ability of the physical layer of the first communication node to filter the path loss; and the path loss mode configured or indicated by the second communication node.

10. The electronic device according to claim 6, characterized in that: The power control parameter is further determined by a path loss mode. When the path loss mode of the first communication node is a physical layer filtering path loss mode, the effective time is determined by: The power control parameter is received at a time, and delayed for a first time; Or the sending time of the hybrid automatic repeat request acknowledgment signaling HARQ-ACK associated with the physical downlink shared channel PDSCH carrying the power control parameter, and the delayed first time.

11. A non-transitory computer-readable storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the power control method according to any one of claims 1 to 5 when running.

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