CN110858999B

CN110858999B - Sounding reference signal SRS power control method, terminal and network equipment

Info

Publication number: CN110858999B
Application number: CN201810967943.XA
Authority: CN
Inventors: 孙晓东; 孙鹏; 潘学明; 杨宇
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2023-03-28
Anticipated expiration: 2038-08-23
Also published as: CN110858999A

Abstract

The invention discloses a Sounding Reference Signal (SRS) power control method, a terminal and network equipment, wherein the method comprises the following steps: acquiring a power control parameter set of a Sounding Reference Signal (SRS) resource set; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set; determining a transmit power of the SRS corresponding to the set of power control parameters. The embodiment of the invention can improve the performance of estimating the channel state information by the SRS and improve the uplink transmission rate.

Description

Sounding reference signal SRS power control method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a sounding reference signal SRS power control method, a terminal, and a network device.

Background

In a mobile communication system, an Sounding Reference Signal (SRS) is triggered according to its periodic characteristics, such as periodicity, semi-persistence, and aperiodicity, and power Control parameters of the SRS are configured to a terminal by Radio Resource Control (RRC). However, in the existing mechanism, SRS power control parameters are configured based on SRS resource sets, and equal power is allocated among different antenna ports, and when a terminal supports simultaneous transmission of multiple SRS sets, power control may be inaccurate, and performance of estimating channel state information by SRS is reduced, thereby affecting uplink transmission rate.

Disclosure of Invention

The embodiment of the invention provides a Sounding Reference Signal (SRS) power control method, a terminal and network equipment, which aim to solve the problems that in the prior art, the estimation performance of SRS channel state information is poor and the uplink transmission rate is influenced.

In a first aspect, an embodiment of the present invention provides a method for controlling SRS power of a sounding reference signal, which is applied to a terminal side, and includes:

acquiring a power control parameter set of a Sounding Reference Signal (SRS) resource set; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set;

determining a transmit power of the SRS corresponding to the set of power control parameters.

In a second aspect, an embodiment of the present invention further provides a terminal, including:

a first obtaining module, configured to obtain a power control parameter set of a sounding reference signal SRS resource set; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set;

a first determining module for determining the transmission power of the SRS corresponding to the power control parameter set.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the steps of the method for controlling SRS power for a sounding reference signal are implemented.

In a fourth aspect, an embodiment of the present invention provides a method for controlling SRS power for a sounding reference signal, which is applied to a network device and includes:

configuring a power control parameter set of a Sounding Reference Signal (SRS) resource set for a terminal; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set.

In a fifth aspect, an embodiment of the present invention provides a network device, including:

the configuration module is used for configuring a power control parameter set of a Sounding Reference Signal (SRS) resource set for a terminal; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set.

In a sixth aspect, an embodiment of the present invention further provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the processor implements the steps of the method for controlling SRS power according to the sounding reference signal.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for controlling SRS power of a sounding reference signal are implemented.

Therefore, the embodiment of the invention respectively configures the corresponding power control parameters for different SRS resources, and the SRS resources determine the transmitting power according to the corresponding power control parameters, so that the power control accuracy can be ensured, the performance of estimating the channel state information by the SRS can be improved, and the uplink transmission rate can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 shows a block diagram of a mobile communication system to which an embodiment of the present invention is applicable;

fig. 2 is a flowchart illustrating an SRS power control method for a terminal according to an embodiment of the present invention;

fig. 3 is a schematic block diagram of a terminal according to an embodiment of the present invention;

FIG. 4 shows a block diagram of a terminal according to an embodiment of the invention;

fig. 5 is a flowchart illustrating an SRS power control method for a network device according to an embodiment of the present invention;

FIG. 6 is a block diagram of a network device according to an embodiment of the present invention;

fig. 7 shows a block diagram of a network device of an embodiment of the invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A and GSM are described in the literature from an organization named "third Generation Partnership project" (3 rd Generation Partnership project,3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3 GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes NR systems for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a network device 01 and a terminal 02. The network device 01 may be a Base Station or a core network, where the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in another communication system (e.g., an eNB, a WLAN access point, or another access point, etc.), where the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable term in the field. The terminal 02 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 02 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and a specific type of the terminal 02 is not limited in the embodiment of the present invention.

The base stations may communicate with the terminal 02 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of these base stations may communicate with each other directly or indirectly over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

A base station may communicate wirelessly with terminal 02 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be partitioned into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 02 to network device 01) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 01 to terminal 02). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission.

In the scenario shown in fig. 1, signal transmission is implemented between the network device 01 and the terminal 02 through an antenna beam, which is formed by a spatial domain transmission filter. For example, as shown in fig. 1, it is assumed that the network device 01 includes N Transmit Receive Points (TRPs), each TRP includes a spatial domain transmission filter to form N beams, and the terminal 02 includes M spatial domain transmission filters to form M beams, where N and M are integers greater than 1. N and M can be the same or different, and the application is not limited.

An embodiment of the present invention provides a sounding reference signal SRS power control method, which is applied to a terminal side, and as shown in fig. 2, the method includes the following steps:

step 21: acquiring a power control parameter set of a Sounding Reference Signal (SRS) resource set; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set.

In the embodiment of the present invention, the network device may include a plurality of TRPs, each of the plurality of TRPs may include at least one (downlink) spatial transmission filter to form a plurality of downlink beams, and the terminal may also include a plurality of (uplink) spatial transmission filters to form a plurality of uplink beams. That is, the network device and the terminal may each include multiple transmission beams, that is, the network device includes multiple downlink beams, and the terminal includes multiple uplink beams, and the uplink beams and the downlink beams form a beam pair. Because the terminal supports multiple uplink beams, the SRS may be transmitted by using multiple beams simultaneously, that is, one SRS resource set may be configured for the SRS, and one SRS resource set may include one SRS resource or at least two SRS resources. In the conventional technology, a network device configures a power control parameter set for a terminal based on an SRS resource set, and in order to ensure the transmission reliability of an SRS on each SRS resource, in an embodiment of the present invention, the network device configures the power control parameter set based on the SRS resources in the SRS resource set, so that each SRS resource corresponds to at least one power control parameter set. It is to be noted that the power control parameter set in the embodiment of the present invention refers to values of different parameters related to power control.

Further, the network device may configure, by using Radio Resource Control (RRC), a power Control parameter set corresponding to each SRS Resource set for the terminal, where the SRS Resource set includes one SRS Resource or may further include at least two SRS resources, each SRS Resource in the SRS Resource sets corresponds to at least one power Control parameter set, and the network device configures, by using RRC, the power Control parameter set corresponding to each SRS Resource set for the terminal, so as to configure, for the terminal, the power Control parameter set corresponding to each SRS Resource. The power control parameter sets corresponding to different SRS resources in the same SRS resource set may be the same or different, and this is not specifically limited in the embodiment of the present invention. Further, in order to save signaling, when all SRS resources in the same SRS resource set correspond to the same power control parameter set, the network device only needs to configure one power control parameter set for the SRS resource set through the RRC, and does not need to configure multiple identical power control parameter sets for multiple SRS resources in the SRS resource set.

Step 22: determining a transmit power of the SRS corresponding to the set of power control parameters.

Each SRS resource in the SRS resource set corresponds to the respective power control parameter set, so that the transmitting power of the SRS on different SRS resources can be determined according to different power control parameter sets, and the transmission reliability of the SRS on each SRS resource is ensured when the SRS is transmitted by multiple panels or multiple beams.

Furthermore, one SRS resource corresponds to at least one SRS port set, and each SRS port set corresponds to one power control parameter set. That is, each SRS resource may correspond to one or more sets of SRS ports. When one SRS resource corresponds to one SRS port set, one SRS resource corresponds to one power control parameter set; when one SRS resource corresponds to a plurality of SRS port sets, one SRS resource corresponds to a plurality of power control parameter sets.

When the SRS port set corresponding to one SRS resource includes at least two SRS ports, the at least two SRS ports corresponding to the SRS resource are coherent; that is, when the set of SRS ports includes at least two SRS ports, the at least two SRS ports are coherent. That is, the set of SRS ports includes coherent SRS ports.

Further, in the embodiment of the present invention, different SRS resource sets or different SRS resources correspond to different spatial correlation information, that is, the spatial correlation information corresponding to different SRS resource sets or different SRS resources is different. The spatial correlation information is used to indicate an uplink transmission beam or an uplink idle transmission filter.

Specifically, different SRS port sets corresponding to each SRS resource correspond to different spatial correlation information, that is, the spatial correlation information corresponding to the different SRS port sets corresponding to each SRS resource is different.

Further, the spatial correlation information further includes an SRS identifier or a reference signal identifier, where the reference signal identifier is the same as a reference signal identifier corresponding to a path loss calculation reference signal (Pathloss reference RS), and the reference signal identifier includes: channel State Information Reference Signal (CSI-RS) or Synchronization Signal broadcast Block (SS-PBCH Block). That is to say, the CSI-RS identifier or the SS-PBCH block identifier included in the spatial correlation information corresponding to the SRS is consistent with the CSI-RS identifier or the SS-PBCH block identifier included in the reference signal for calculating the path loss, or the reference signal for calculating the path loss is the CSI-RS identifier or the SS-PBCH block identifier included in the spatial correlation information corresponding to the SRS. It is worth noting, among other things, that the network device may not indicate the path loss calculation reference signal.

In this embodiment, when the transmission power of the SRS is associated with a Physical Uplink Shared Channel (PUSCH), the set of power control parameters at least includes: closed loop process identifier (Close loop process index) used for PUSCH. That is, when SRS power control is associated with PUSCH, the network device configures at least for each set of SRS resources or each SRS resource or each set of SRS ports its associated closed-loop process identity through RRC.

When the transmission power of the SRS (or called SRS closed loop power control) is not associated with a Physical Uplink Shared Channel (PUSCH), the power control parameter set satisfies at least one of the following relations:

when at least two SRS resource sets are transmitted simultaneously, the power control parameter sets corresponding to different SRS resource sets are different; that is, when multiple SRS resource sets are transmitted simultaneously, the power control parameter is different for each SRS resource set.

When at least two SRS resources are transmitted simultaneously, the corresponding power control parameter sets of different SRS resources are different; that is, when a plurality of SRS resources are simultaneously transmitted, the power control parameter is different for each SRS resource.

When at least two SRS port sets are transmitted simultaneously, the power control parameter sets corresponding to different SRS port sets are different, or the power among different SRS port sets meets a preset proportional relation; that is, when multiple SRS port sets or multiple coherent SRS port sets transmit simultaneously, the power control parameter of each SRS port set is different, or power is allocated among multiple SRS ports according to a preset proportional relationship, for example, power is allocated evenly among multiple SRS ports. The preset proportional relation is related to the reference signal for calculating the path loss, or the preset proportional relation is related to the number of physical resource blocks occupied by transmission.

In this embodiment, the power control parameter set refers to a parameter set related to power control, and specifically, the power control parameter set may include, but is not limited to: target received power, path loss compensation factors, path loss calculation reference signals and closed loop power control adjustment states.

Further, step 22 may determine the SRS transmit power by the following equation:

wherein, P _SRS,b,f,c (i,q _s L) denotes the transmission power of the SRS, P _CMAX,f,c (i) Representing the maximum transmission power, P, of the terminal _{O_SRS,b,f,c} (q _s ) Representing the target received power, M _SRS,b,f,c (i) Indicates the transmission bandwidth of the SRS, α _SRS,b,f,c (q _s ) Representing the path loss compensation factor, PL _b,f,c (q _d ) Represents the estimated path loss value, h _b,f,c (i, l) represents the closed loop power control adjustment, i represents the transmission time, q _s Representing target received power and path loss compensation factor value identification, q _d Indicating that the path loss calculation is based on the reference signal identification, and l indicates a closed-loop power control process identification.

Specifically, it is assumed that the network device notifies the terminal of the target received power P0 and the path loss compensation factor α value, the Pathloss Reference RS identifier, and the SRS closed-loop power control adjustment state corresponding to each SRS antenna port set in each SRS resource set through RRC signaling. When the SRS closed-loop power control adjustment state indicates that the SRS closed-loop power control is associated with the PUSCH, the SRS resource set 0 comprises coherent SRS port sets {0,2} and {1,3}, the SRS port sets {0,2} correspond to P0 and alpha value 0, a Path Reference RS identifier 0, and the SRS closed-loop power control adjustment state indicates that the SRS closed-loop power control is the same as the closed-loop process identifier 0 of the PUSCH; the SRS port set {1,3} corresponds to P0 and alpha value 1, the Patholoss Reference RS identifier 1, and the SRS closed-loop power control adjustment state indicates that the SRS closed-loop power control is the same as the closed-loop process identifier 1 of the PUSCH.

Based on the configuration, the terminal can calculate the sending power of the SRS port set {0,2} according to the P0 and alpha value 0 corresponding to the SRS port set {0,2}, the Pathloss Reference RS identifier 0 and the closed loop process identifier 0 associated with the PUSCH. And calculating the sending power of the SRS port set {1,3} according to the P0 and alpha value 1 corresponding to the SRS port set {1,3}, the Path Reference RS identifier 1 and the closed loop process identifier 1 associated with the PUSCH.

Or, it is assumed that the network device notifies the terminal of the P0 and α values, pathloss Reference RS identifiers, and SRS closed-loop power control adjustment states corresponding to each SRS resource in each SRS resource set through RRC signaling. When the SRS closed-loop power control adjustment state indicates that the SRS closed-loop power control is not associated with the PUSCH (namely the SRS adopts independent closed-loop power control). The SRS resource set comprises an SRS resource 0 and an SRS resource 1, the SRS resource 0 corresponds to a P0 and an alpha value 0, a Pathloss Reference RS identifier 0 and an SRS closed-loop process identifier 0; the SRS resource 1 corresponds to a P0 and alpha value 1, a Pathloss Reference RS identifier 1 and an SRS closed-loop process identifier 1. Based on the configuration, the terminal can calculate the sending power of the SRS resource 0 according to the value 0 of P0 and α corresponding to the SRS resource 0, the Pathloss Reference RS identifier 0, and the SRS closed-loop process identifier 0. And calculating the sending power of the SRS resource 1 according to the P0 and alpha value 1 corresponding to the SRS resource 1, the Patholoss Reference RS identifier 1 and the SRS closed-loop process identifier 1.

Or, it is assumed that the network device notifies the terminal of the P0 and α values corresponding to each SRS resource set, the Pathloss Reference RS identifier, the SRS closed-loop power control adjustment state, and information related to each SRS resource space in the SRS resource set through an RRC signaling. When the SRS resource set 0 includes the SRS resource 0 and the SRS resource 1, the periodic characteristic is semi-continuous, and the corresponding power control parameter set includes P0 and α value 0, pathloss Reference RS identifier 0, and the SRS adopts independent power control. Based on the configuration, the terminal calculates the transmission power of the SRS resource 0 and the SRS resource 1 according to the P0 and alpha value 0, the Patholoss Reference RS identifier 0 and the closed loop process identifier 0, and transmits the SRS resource 0 and the SRS resource 1. If the Medium Access Control Element (MAC CE) changes the spatial correlation information of the SRS resource 1 into the SS-PBCH block 1 by activating the command, the SRS resource 1 calculates the transmission power of the SRS resource 1 according to the value 0 of P0 and α, the SS-PBCH block 1, and the closed-loop process identifier 0, and transmits the SRS resource 1.

In the SRS power control method of the embodiment of the invention, the terminal acquires the power control parameters respectively corresponding to different SRS resources, and the SRS resources determine the transmitting power according to the corresponding power control parameters, so that the power control accuracy can be ensured, the performance of estimating the channel state information by the SRS can be improved, and the uplink transmission rate can be improved.

The foregoing embodiments respectively describe in detail the SRS power control method in different scenarios, and the following embodiments further describe the corresponding terminals with reference to the accompanying drawings.

As shown in fig. 3, the terminal 300 according to the embodiment of the present invention can implement obtaining a power control parameter set of a sounding reference signal SRS resource set in the foregoing embodiment; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set; the details of the SRS transmit power method corresponding to the power control parameter set are determined, and the same effect is achieved, where the terminal 300 specifically includes the following functional modules:

a first obtaining module 310, configured to obtain a power control parameter set of a sounding reference signal SRS resource set; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set;

a first determining module 320, configured to determine the transmission power of the SRS corresponding to the set of power control parameters.

One SRS resource corresponds to at least one SRS port set, and each SRS port set corresponds to a power control parameter set.

Wherein, when the SRS port set comprises at least two SRS ports, the at least two SRS ports are coherent.

Wherein the set of power control parameters includes: target received power, path loss compensation factors, path loss calculation reference signals and closed loop power control adjustment states.

Different SRS resource sets or different SRS resources correspond to different spatial correlation information, where the spatial correlation information is used to indicate an uplink transmission beam or an uplink spatial domain transmission filter.

The spatial correlation information corresponding to different SRS port sets corresponding to the SRS resources is different.

The spatial correlation information further includes an SRS identifier or a reference signal identifier, where the reference signal identifier is the same as a reference signal identifier corresponding to a reference signal for calculating the path loss, and the reference signal identifier includes: the channel state information reference signal CSI-RS or synchronization signal broadcast SS-PBCH block identification.

When the transmission power of the SRS is associated with the physical uplink shared channel PUSCH, the power control parameter set at least includes: and identifying the closed loop process adopted by the PUSCH.

When the transmitting power of the SRS is not associated with a Physical Uplink Shared Channel (PUSCH), the power control parameter set satisfies at least one of the following relations:

when at least two SRS resource sets are transmitted simultaneously, the power control parameter sets corresponding to different SRS resource sets are different;

when at least two SRS resources are transmitted simultaneously, the power control parameter sets corresponding to different SRS resources are different;

when at least two SRS port sets are transmitted simultaneously, the power control parameter sets corresponding to different SRS port sets are different, or the power between different SRS port sets meets a preset proportional relation.

The preset proportional relation is related to the reference signal for calculating the path loss, or the preset proportional relation is related to the number of physical resource blocks occupied by transmission.

It is worth pointing out that, the terminal of the embodiment of the present invention obtains the power control parameters corresponding to different SRS resources, and the SRS resources determine the transmission power according to the corresponding power control parameters, which can ensure accurate power control, thereby improving the performance of estimating the channel state information by the SRS and increasing the uplink transmission rate.

To better achieve the above object, further, fig. 4 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 40 includes, but is not limited to: radio frequency unit 41, network module 42, audio output unit 43, input unit 44, sensor 45, display unit 46, user input unit 47, interface unit 48, memory 49, processor 410, and power supply 411. Those skilled in the art will appreciate that the terminal configuration shown in fig. 4 is not intended to be limiting, and that the terminal may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 41 is configured to obtain a power control parameter set of a sounding reference signal SRS resource set; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set;

a processor 410 configured to determine a transmit power of the SRS corresponding to the set of power control parameters;

the terminal of the embodiment of the invention acquires the power control parameters respectively corresponding to different SRS resources, and the SRS resources determine the transmitting power according to the corresponding power control parameters, so that the power control accuracy can be ensured, the performance of estimating the channel state information by the SRS can be improved, and the uplink transmission rate can be improved.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 41 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 410; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 41 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 41 can also communicate with a network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband internet access via the network module 42, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 43 may convert audio data received by the radio frequency unit 41 or the network module 42 or stored in the memory 49 into an audio signal and output as sound. Also, the audio output unit 43 may also provide audio output related to a specific function performed by the terminal 40 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 43 includes a speaker, a buzzer, a receiver, and the like.

The input unit 44 is for receiving an audio or video signal. The input Unit 44 may include a Graphics Processing Unit (GPU) 441 and a microphone 442, and the Graphics processor 441 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 46. The image frames processed by the graphic processor 441 may be stored in the memory 49 (or other storage medium) or transmitted via the radio frequency unit 41 or the network module 42. The microphone 442 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 41 in case of the phone call mode.

The terminal 40 also includes at least one sensor 45, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 461 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 461 and/or a backlight when the terminal 40 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 45 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 46 is used to display information input by the user or information provided to the user. The Display unit 46 may include a Display panel 461, and the Display panel 461 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 47 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 47 includes a touch panel 471 and other input devices 472. The touch panel 471, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 471 (e.g., operations by a user on or near the touch panel 471 using a finger, a stylus, or any other suitable object or attachment). The touch panel 471 can include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 410 to receive and execute commands sent by the processor 410. In addition, the touch panel 471 can be implemented by various types, such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 47 may include other input devices 472 in addition to the touch panel 471. Specifically, the other input devices 472 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 471 can be overlaid on the display panel 461, and when the touch panel 471 detects a touch operation on or near the touch panel 471, the touch panel transmits the touch operation to the processor 410 to determine the type of the touch event, and then the processor 410 provides a corresponding visual output on the display panel 461 according to the type of the touch event. Although in fig. 4, the touch panel 471 and the display panel 461 are implemented as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 471 and the display panel 461 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 48 is an interface for connecting an external device to the terminal 40. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 48 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 40 or may be used to transmit data between the terminal 40 and an external device.

The memory 49 may be used to store software programs as well as various data. The memory 49 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, application programs (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, etc. Further, the memory 49 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 410 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 49 and calling data stored in the memory 49, thereby performing overall monitoring of the terminal. Processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 410.

The terminal 40 may further include a power supply 411 (e.g., a battery) for supplying power to various components, and preferably, the power supply 411 may be logically connected to the processor 410 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the terminal 40 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, which includes a processor 410, a memory 49, and a computer program stored in the memory 49 and capable of running on the processor 410, where the computer program, when executed by the processor 410, implements each process of the above-mentioned SRS power control method, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned SRS power control method, and can achieve the same technical effect, and in order to avoid repetition, the computer program is not described herein again. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The above embodiment describes the method for controlling SRS power of a sounding reference signal from a terminal side, and the following embodiment further describes the method for controlling SRS power of a sounding reference signal from a network device side with reference to the accompanying drawings.

As shown in fig. 5, the method for controlling SRS power of a sounding reference signal according to an embodiment of the present invention is applied to a terminal, and the method includes the following steps:

step 51: configuring a power control parameter set of a Sounding Reference Signal (SRS) resource set for a terminal; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set.

In an embodiment of the present invention, a network device may include a plurality of TRPs, and each of the plurality of TRPs may include at least one (downlink) spatial transmission filter to form a plurality of downlink beams (or referred to as multiple panels). Because the terminal supports multiple uplink beams, the SRS may be transmitted simultaneously using multiple beams, that is, one SRS resource set may be configured for the SRS, where one SRS resource set includes one SRS resource and may also include at least two SRS resources, and in order to ensure transmission reliability of the SRS on each SRS resource, the network device may correspond to at least one power control parameter set for each SRS resource.

Further, the network device may configure, for the terminal, a power Control parameter set corresponding to each SRS Resource set through Radio Resource Control (RRC), where the SRS Resource set includes one SRS Resource and may also include at least two SRS resources, each SRS Resource corresponds to at least one power Control parameter set, and the network device configures, for the terminal, a power Control parameter set corresponding to each SRS Resource set through RRC, and further may configure, for the terminal, a power Control parameter set corresponding to each SRS Resource. The power control parameter sets corresponding to different SRS resources in the same SRS resource set may be the same or different, and this is not specifically limited in this embodiment of the present invention.

Furthermore, one SRS resource corresponds to at least one SRS port set, and each SRS port set corresponds to one power control parameter set. That is, each SRS resource may correspond to one or more SRS port sets. When one SRS resource corresponds to one SRS port set, one SRS resource corresponds to one power control parameter set; when one SRS resource corresponds to a plurality of SRS port sets, one SRS resource corresponds to a plurality of power control parameter sets.

When the SRS port set corresponding to one SRS resource includes multiple SRS ports, the SRS ports corresponding to the SRS resource are coherent; that is, when the set of SRS ports includes at least two SRS ports, the at least two SRS ports are coherent. That is, the set of SRS ports includes coherent SRS ports.

Further, in the embodiment of the present invention, different SRS resource sets or different SRS resources correspond to different spatial correlation information, that is, the spatial correlation information corresponding to different SRS resource sets or different SRS resources is different. The spatial correlation information is used for indicating an uplink transmission beam or an uplink vacant transmission filter.

Further, the spatial correlation information further includes an SRS identifier or a reference signal identifier, where the reference signal identifier is the same as a reference signal identifier corresponding to the reference signal for path loss calculation, and the reference signal identifier includes: the channel state information reference signal CSI-RS or synchronization signal broadcast SS-PBCH block identification. That is to say, the CSI-RS identifier or the SS-PBCH block identifier included in the spatial correlation information corresponding to the SRS is consistent with the CSI-RS identifier or the SS-PBCH block identifier included in the path loss calculation reference signal, or the path loss calculation reference signal is the CSI-RS identifier or the SS-PBCH block identifier included in the SRS spatial correlation information.

In this embodiment, when the transmission power of the SRS is associated with the physical uplink shared channel, PUSCH, the power control parameter set at least includes: and identifying the closed loop process adopted by the PUSCH. That is, when SRS power control is associated with PUSCH, the network device configures at least for each set of SRS resources or each SRS resource or each set of SRS ports its associated closed-loop process identity through RRC.

When at least two SRS resources are transmitted simultaneously, the corresponding power control parameter sets of different SRS resources are different; that is, when a plurality of SRS resources are simultaneously transmitted, the power control parameter of each SRS resource is different.

When at least two SRS port sets are transmitted simultaneously, the power control parameter sets corresponding to different SRS port sets are different, or the power among different SRS port sets meets a preset proportional relation; that is to say, when multiple SRS port sets or multiple coherent SRS port sets transmit simultaneously, the power control parameter of each SRS port set is different, or power is allocated among multiple SRS port sets according to a preset proportional relationship, for example, power is allocated evenly among multiple SRS port sets. The preset proportional relation is related to the path loss calculation reference signal, or the preset proportional relation is related to the number of physical resource blocks occupied by transmission.

Suppose that the network device notifies the terminal of the target received power P0 and the path loss compensation factor α value, the Pathloss Reference RS identifier, and the SRS closed-loop power control adjustment state corresponding to each SRS antenna port set in each SRS resource set through RRC signaling. When the SRS closed-loop power control adjustment state indicates that the SRS closed-loop power control is associated with the PUSCH, the SRS resource set 0 comprises coherent SRS port sets {0,2} and {1,3}, the SRS port sets {0,2} correspond to P0 and alpha value 0, a Path Reference RS identifier 0, and the SRS closed-loop power control adjustment state indicates that the SRS closed-loop power control is the same as the closed-loop process identifier 0 of the PUSCH; the SRS port set {1,3} corresponds to P0 and alpha value 1, the Patholoss Reference RS identifier 1, and the SRS closed-loop power control adjustment state indicates that the SRS closed-loop power control is the same as the closed-loop process identifier 1 of the PUSCH.

And, assuming that the network device notifies the terminal of the P0 and α values, pathloss Reference RS identifiers, and SRS closed-loop power control adjustment states corresponding to each SRS resource in each SRS resource set through RRC signaling. When the SRS closed-loop power control adjustment state indicates that the SRS closed-loop power control is not associated with the PUSCH (namely the SRS adopts independent closed-loop power control). The SRS resource set comprises an SRS resource 0 and an SRS resource 1, the SRS resource 0 corresponds to a P0 and an alpha value 0, a Pathloss Reference RS identifier 0 and an SRS closed-loop process identifier 0; the SRS resource 1 corresponds to a P0 and alpha value 1, a Pathloss Reference RS identifier 1 and an SRS closed-loop process identifier 1. Based on the configuration, the terminal can calculate the sending power of the SRS resource 0 according to the value 0 of P0 and α corresponding to the SRS resource 0, the Pathloss Reference RS identifier 0, and the SRS closed-loop process identifier 0. And calculating the sending power of the SRS resource 1 according to the P0 and alpha value 1 corresponding to the SRS resource 1, the Patholoss Reference RS identifier 1 and the SRS closed-loop process identifier 1.

And, it is assumed that the network device notifies the terminal of the P0 and α values corresponding to each SRS resource set, the Pathloss Reference RS identifier, the SRS closed-loop power control adjustment state, and the information related to each SRS resource space in the SRS resource set through RRC signaling. When the SRS resource set 0 includes the SRS resource 0 and the SRS resource 1, the periodic characteristic is semi-continuous, and the corresponding power control parameter set includes P0 and α value 0, pathloss Reference RS identifier 0, and the SRS adopts independent power control. In addition, the network device may also change the spatial correlation information of the SRS resource 1 to the SS-PBCH block 1 through an activation command of the MAC CE, so that the terminal may calculate the transmit power of the SRS resource 1 according to the P0 and the α value 0, the SS-PBCH block 1, and the closed-loop process identifier 0, and transmit the SRS resource 1.

In the SRS power control method of the embodiment of the invention, the network equipment respectively configures corresponding power control parameters for different SRS resources, and the SRS resources determine the transmitting power according to the corresponding power control parameters, so that the power control accuracy can be ensured, the performance of estimating the channel state information by the SRS can be improved, and the uplink transmission rate can be improved.

The foregoing embodiments describe sounding reference signal SRS power control methods in different scenarios, and further describe network devices corresponding to the sounding reference signal SRS power control methods with reference to the accompanying drawings.

As shown in fig. 6, a network device 600 according to an embodiment of the present invention can configure a power control parameter set of a sounding reference signal SRS resource set for a terminal in the foregoing embodiment; the SRS resource set includes at least one SRS resource, each SRS resource corresponds to details of at least one power control parameter set method, and the same effect is achieved, and the network device 600 specifically includes the following functional modules:

a configuration module 610, configured to configure a power control parameter set of a sounding reference signal SRS resource set for a terminal; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set.

One SRS resource corresponds to at least one SRS port set, and each SRS port set corresponds to one power control parameter set.

The spatial correlation information further includes an SRS identifier or a reference signal identifier, where the reference signal identifier is the same as a reference signal identifier corresponding to a reference signal for calculating the path loss, and the reference signal identifier includes: the channel state information reference signal CSI-RS or synchronization signal broadcasts the SS-PBCH block identification.

when at least two SRS port sets are transmitted simultaneously, the power control parameter sets corresponding to different SRS port sets are different, or the power among different SRS port sets meets a preset proportional relation.

It is worth pointing out that, the network device in the embodiment of the present invention configures corresponding power control parameters for different SRS resources, and the SRS resources determine the transmission power according to the corresponding power control parameters, which can ensure accurate power control, thereby improving performance of estimating channel state information by SRS and increasing uplink transmission rate.

It should be noted that the division of the modules of the network device and the terminal is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be integrated into a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a processing element of the apparatus calls and executes the function of the determining module. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when some of the above modules are implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can invoke the program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps in the sounding reference signal SRS power control method as described above are implemented. Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the method for controlling SRS power according to the above-mentioned sounding reference signal.

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 7, the network device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73. The antenna 71 is connected to a radio frequency device 72. In the uplink direction, the rf device 72 receives information via the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes information to be transmitted and transmits the information to the rf device 72, and the rf device 72 processes the received information and transmits the processed information through the antenna 71.

The above-mentioned band processing means may be located in the baseband means 73, and the method performed by the network device in the above embodiment may be implemented in the baseband means 73, where the baseband means 73 includes a processor 74 and a memory 75.

The baseband device 73 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 7, wherein one of the chips, for example, the processor 74, is connected to the memory 75 to call up the program in the memory 75 to perform the network device operation shown in the above method embodiment.

The baseband device 73 may further include a network interface 76, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 72.

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

The memory 75 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 75 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored on the memory 75 and executable on the processor 74, the processor 74 calling the computer program in the memory 75 to execute the method performed by each module shown in fig. 6.

In particular, the computer program when invoked by the processor 74 is operable to perform: configuring a power control parameter set of a Sounding Reference Signal (SRS) resource set for a terminal; the SRS resource set comprises at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set.

The network equipment in the embodiment of the invention respectively configures corresponding power control parameters for different SRS resources, and the SRS resources determine the transmitting power according to the corresponding power control parameters, so that the power control accuracy can be ensured, the performance of estimating the channel state information by the SRS can be improved, and the uplink transmission rate can be improved.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various media capable of storing program codes.

Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step may be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processor, storage medium, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

The object of the invention is thus also achieved by a program or a set of programs running on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A Sounding Reference Signal (SRS) power control method is applied to a terminal side, and is characterized by comprising the following steps:

acquiring a power control parameter set of a Sounding Reference Signal (SRS) resource set; the SRS resource sets comprise at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set;

determining a transmission power of an SRS corresponding to the set of power control parameters;

the different SRS resource sets or the different SRS resources correspond to different space related information, wherein the space related information is used for indicating an uplink transmission beam or an uplink spatial domain transmission filter;

the spatial correlation information includes a reference signal identifier, where the reference signal identifier is the same as a reference signal identifier corresponding to a reference signal for path loss calculation, and the reference signal identifier includes: the channel state information reference signal CSI-RS or synchronization signal broadcast SS-PBCH block identification.

2. The SRS power control method according to claim 1, wherein one SRS resource corresponds to at least one SRS port set, and each SRS port set corresponds to a power control parameter set.

3. The sounding reference signal, SRS, power control method of claim 2, wherein when the set of SRS ports includes at least two SRS ports, the at least two SRS ports are coherent.

4. The method according to claim 1, wherein the set of power control parameters comprises: target received power, path loss compensation factors, path loss calculation reference signals and closed loop power control adjustment states.

5. The SRS power control method according to claim 1, wherein the spatial correlation information is different for different SRS port sets corresponding to the SRS resources.

6. The SRS power control method according to claim 1, wherein the spatial correlation information further includes SRS identity.

7. The method according to claim 1, wherein when the SRS transmission power is associated with a Physical Uplink Shared Channel (PUSCH), the power control parameter set at least comprises: and identifying the closed loop process adopted by the PUSCH.

8. The method according to claim 1, wherein when the SRS transmission power is not associated with a Physical Uplink Shared Channel (PUSCH), the power control parameter set satisfies at least one of the following relationships:

9. The SRS power control method according to claim 8, wherein the predetermined proportional relationship is related to a path loss calculation reference signal, or wherein the predetermined proportional relationship is related to a number of physical resource blocks occupied by transmission.

10. A Sounding Reference Signal (SRS) power control method is applied to a network device side, and is characterized by comprising the following steps:

configuring a power control parameter set of a Sounding Reference Signal (SRS) resource set for a terminal; the SRS resource sets comprise at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set;

different SRS resource sets or different SRS resources correspond to different space-related information, wherein the space-related information is used for indicating an uplink transmission beam or an uplink spatial-domain transmission filter;

the spatial correlation information includes a reference signal identifier, where the reference signal identifier is the same as a reference signal identifier corresponding to a reference signal for path loss calculation, and the reference signal identifier includes: the channel state information reference signal CSI-RS or synchronization signal broadcasts the SS-PBCH block identification.

11. The method of claim 10, wherein one SRS resource corresponds to at least one SRS port set, and each SRS port set corresponds to a power control parameter set.

12. The sounding reference signal, SRS, power control method of claim 11, wherein when the set of SRS ports includes at least two SRS ports, the at least two SRS ports are coherent.

13. The method according to claim 10, wherein the set of power control parameters includes: target received power, path loss compensation factors, path loss calculation reference signals and closed loop power control adjustment states.

14. The method of claim 10, wherein the spatial correlation information is different for different SRS port sets corresponding to the SRS resources.

15. The SRS power control method according to claim 10, wherein the spatial correlation information further includes SRS identity.

16. The method according to claim 10, wherein when the SRS has a transmission power associated with a physical uplink shared channel, PUSCH, the set of power control parameters at least includes: and closed loop process identification adopted by the PUSCH.

17. The method of claim 10, wherein when the SRS transmission power is not associated with a Physical Uplink Shared Channel (PUSCH), the power control parameter set satisfies at least one of the following relationships:

18. The SRS power control method according to claim 17, wherein the predetermined proportional relationship is related to a path loss calculation reference signal, or wherein the predetermined proportional relationship is related to a number of physical resource blocks occupied by transmission.

19. A terminal, comprising:

a first obtaining module, configured to obtain a power control parameter set of a sounding reference signal SRS resource set; the SRS resource sets comprise at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set;

a first determining module, configured to determine a transmission power of an SRS corresponding to the set of power control parameters;

20. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored in the memory and run on the processor, and the processor when executing the computer program realizes the steps of the method for sounding reference signal, SRS, power control according to any of claims 1 to 9.

21. A network device, comprising:

the configuration module is used for configuring a power control parameter set of a Sounding Reference Signal (SRS) resource set for a terminal; the SRS resource sets comprise at least one SRS resource, and each SRS resource corresponds to at least one power control parameter set;

22. A network device, characterized in that the network device comprises a processor, a memory and a computer program stored on the memory and run on the processor, the processor when executing the computer program implementing the steps of the sounding reference signal, SRS, power control method according to any of claims 10 to 18.

23. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the sounding reference signal, SRS, power control method according to one of claims 1 to 18.