CN114844605A

CN114844605A - SRS resource configuration method, device, equipment and readable storage medium

Info

Publication number: CN114844605A
Application number: CN202110143726.0A
Authority: CN
Inventors: 曹昱华; 李岩; 王飞; 郑毅
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2022-08-02
Also published as: WO2022166622A1

Abstract

The embodiment of the application provides an SRS resource allocation method, an SRS resource allocation device, SRS resource allocation equipment and a readable storage medium, wherein the method comprises the following steps: receiving DCI; according to one or more bits in the DCI, indicating one or more target SRS resource sets, wherein the target SRS resource sets are subsets of a plurality of SRS resource sets configured by a base station for uplink transmission. In the embodiment of the application, the terminal is configured with the SRS resource sets with different time domain behaviors, so that the flexibility of the SRS resource sets is improved.

Description

SRS resource configuration method, device, equipment and readable storage medium

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a Sounding Reference Signal (SRS) resource allocation method, a Sounding Reference Signal (SRS) resource allocation device, SRS resource allocation equipment and a readable storage medium.

Background

Referring to fig. 1, illustrating an Uplink transmission flow based on a codebook, when a Physical Uplink Shared Channel (PUSCH) is configured as a transmission mode based on the codebook, a terminal is first required to transmit an SRS for Uplink transmission based on the codebook, that is, a usage (usage) of a sounding reference signal set (SRS resource set) is configured as the codebook (codebook). For the codebook-based uplink transmission scheme, a New Radio (NR) allows a base station to configure at most one SRS resource set for a UE for uplink channel estimation, and the SRS resource set may configure at most two sounding reference signal resources (SRS resources). The base station performs uplink channel detection according to the SRS transmitted by the UE, determines an SRS Resource Indicator (SRI), an uplink transmission layer number (RI), a Transmission Precoding Matrix Indicator (TPMI), a Modulation and Coding Scheme (MCS), and the like corresponding to uplink transmission, and notifies the Information to the terminal in Downlink Control Information (DCI).

Table 1: SRI indication for codebook-based PUSCH transmission

Referring to fig. 2, a non-codebook based uplink transmission flow is illustrated, and the non-codebook based uplink transmission scheme is mainly different from the codebook based uplink transmission scheme in that the precoding is no longer limited to a limited candidate set based on a fixed codebook. And the terminal can determine the precoding of data and the number of transmission layers using the SRI.

In a communication system, when the PUSCH is configured in a non-codebook based transmission mode, the terminal is first required to transmit an SRS for uplink transmission based on a non-codebook, that is, the usage configuration of SRS resource set is a non-codebook (non-codebook). For a non-codebook uplink transmission scheme, a base station can configure at most 1 SRS resource set for a terminal, wherein the SRS resource set comprises 1-4 SRS resources, and each SRS resource is a single port. And the terminal determines the precoding of the SRS based on the downlink channel estimation and sends the precoded SRS.

The base station indicates the SRI in the DCI, wherein the SRI may indicate 1 or more SRS resources. The number of SRS resources indicated in the SRI is RI for PUSCH transmission, precoding adopted by the SRS resources indicated in the SRI is TPMI for PUSCH transmission, and the transmission layers of the PUSCH correspond to the SRS resources indicated by the SRI one to one.

Table 2: SRI indication, L, for non-codebook PUSCH transmissions _max ＝2

In the existing communication system, the base station can only configure at most 1 SRS resource set for uplink transmission to the terminal, which greatly limits the flexibility of the SRS resource sets.

Disclosure of Invention

Embodiments of the present application provide an SRS resource configuration method, an SRS resource configuration device, an SRS resource configuration apparatus, and a readable storage medium, which solve the problem of poor flexibility of an SRS resource set.

In a first aspect, a method for configuring SRS resources is provided, which is performed by a terminal, and includes:

receiving DCI;

according to one or more bits in the DCI, indicating one or more target SRS resource sets, wherein the target SRS resource sets are subsets of a plurality of SRS resource sets configured by a base station for uplink transmission.

Optionally, the method further comprises:

and sending the plurality of SRS resource sets configured by the base station for uplink transmission.

Optionally, the method further comprises:

if one or more target SRS resource sets corresponding to one or more bits in the DCI are periodic SRS resource sets, the SRS resource associated with the SRI in the DCI is the latest periodic SRS resource indicated by the SRI before the receiving time of the DCI;

alternatively, the first and second liquid crystal display panels may be,

if one or more target SRS resource sets corresponding to one or more bits in the DCI are all aperiodic SRS resource sets, the SRS resource associated with the SRI in the DCI is the nearest aperiodic SRS resource indicated by the SRI before a reference point, wherein the reference point is positioned before the DCI receiving time;

alternatively, the first and second electrodes may be,

if one or more target SRS resource sets corresponding to one or more bits in the DCI are all semi-persistent periodic SRS resource sets, the SRS resource associated with the SRI in the DCI is the latest semi-persistent periodic SRS resource indicated by the SRI before the receiving time of the DCI, and the semi-persistent periodic SRS resource is not transmitted for the first time after the MAC CE is activated.

In a second aspect, a method for configuring SRS resources is provided, which is performed by a base station and includes:

sending DCI, wherein one or more bits in the DCI are used for indicating one or more target SRS resource sets to a terminal, and the target SRS resource sets are subsets of a plurality of SRS resource sets configured by a base station and used for uplink transmission.

Optionally, the method further comprises:

a plurality of SRS resource sets for uplink transmission are configured.

In a third aspect, an apparatus for SRS resource configuration is provided, including:

a first receiving module, configured to receive DCI;

a determining module, configured to indicate one or more target SRS resource sets according to one or more bits in the DCI, where the target SRS resource sets are subsets of a plurality of SRS resource sets configured by a base station for uplink transmission.

In a fourth aspect, an apparatus for SRS resource configuration is provided, including:

a second sending module, configured to send DCI, where one or more bits in the DCI are used to indicate one or more target SRS resource sets to a terminal, where the target SRS resource sets are subsets of a plurality of SRS resource sets configured by a base station for uplink transmission.

In a fifth aspect, a terminal is provided, including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the method according to the first aspect.

In a sixth aspect, there is provided a base station comprising: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the method according to the second aspect.

In a seventh aspect, a readable storage medium is provided, on which a program is stored, which when executed by a processor implements steps comprising the method of the first or second aspect.

In the embodiment of the application, the terminal is configured with the SRS resource sets with different time domain behaviors, so that the flexibility of the SRS resource sets is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic illustration of codebook-based uplink transmission;

FIG. 2 is a schematic illustration of non-codebook based uplink transmission;

FIG. 3 is a schematic diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 4 is a flowchart of an SRS resource allocation method according to an embodiment of the present application;

fig. 5 is a second flowchart of an SRS resource allocation method according to an embodiment of the present application;

fig. 6 is a schematic diagram of an SRS resource configuration apparatus according to an embodiment of the present application;

fig. 7 is a second schematic diagram of an SRS resource allocation apparatus according to an embodiment of the present application;

fig. 8 is a schematic diagram of a terminal of an embodiment of the present application;

FIG. 9 is a schematic diagram of a base station of an embodiment of the present application;

fig. 10 is one of schematic diagrams illustrating DCI-based determination of target SRS resources according to an embodiment of the present application;

FIG. 11 is a second schematic diagram illustrating the determination of target SRS resources based on DCI according to the embodiment of the present application

Fig. 12 is a third schematic diagram illustrating determining a target SRS resource based on DCI according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, 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. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other 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" in the embodiments of the present application are often used interchangeably, and the described techniques can 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 a New Radio (NR) system 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, such as 6th Generation (6G) communication systems.

Fig. 3 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 31 and a network-side device 32. Wherein, the terminal 31 may also be called as a terminal Device or a User Equipment (UE), the terminal 31 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 31. The network-side device 32 may be a Base Station or a core network-side device, wherein 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, a Transmission Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

Referring to fig. 4, an embodiment of the present application provides an SRS resource configuration method, which is executed by a terminal, and includes: step 401 and step 402.

Step 401: receiving DCI;

step 402: according to one or more bits in the DCI, indicating one or more target SRS resource sets, wherein the target SRS resource sets are subsets of a plurality of SRS resource sets configured by a base station for uplink transmission.

The base station can configure N SRS resource sets for uplink transmission, and set N bits in the DCI for indicating a certain subset of the N SRS resource sets to the terminal.

For example, the base station may configure 2 SRS resource sets for the UE for uplink transmission at a higher layer: set #1 is periodic and set #2 is aperiodic. And then the terminal sends SRS resource set #1 and SRS resource set #2 to the base station. After the base station receives the SRS signal, 1 bit is set in the DCI to indicate the SRS resource set to the UE.

For another example, the base station configures 3 SRS resource sets for the UE for uplink transmission: set #1 is periodic, set #2 and set #3 are both aperiodic, and after the terminal transmits SRS and the base station receives these SRS, the base station sets 2 bits in DCI to indicate SRS resource set to the terminal, e.g., "00" for set #1, "01" for set #2, "11" for set # 3; or 1 bit is set indicating periodicity (set #1) or non-periodicity (set #2, #3), for example, "0" indicates periodicity (set #1), "1" indicates non-periodicity (set #2, #3), or "1" indicates periodicity (set #1), "0" indicates non-periodicity (set #2, # 3).

In an embodiment of the present application, the method further includes: and sending the plurality of SRS resource sets (resource sets) configured by the base station and used for uplink transmission.

For example, the base station may configure 2 SRS resource sets for the UE in RRC for uplink transmission: set #1 is periodic and set #2 is aperiodic. Then the UE sends SRS resource set #1 and SRS resource set #2 to the base station. After the base station receives the SRS signal, 1 bit is set in the DCI to indicate the SRS resource set to the UE. In an embodiment of the application, the method further comprises one of:

(1) if one or more target SRS resource sets corresponding to one or more bits in the DCI are periodic SRS resource sets, the SRS resource associated with the SRI in the DCI is the latest periodic SRS resource indicated by the SRI before the receiving time of the DCI;

(2) if one or more target SRS resource sets corresponding to one or more bits in the DCI are all aperiodic SRS resource sets, an SRS resource associated with an SRI in the DCI is the nearest aperiodic SRS resource indicated by an SRI before a reference point (reference point), wherein the reference point is located before the DCI receiving time, and the reference point can also be called effective time or processing time;

(3) if one or more target SRS resource sets corresponding to one or more bits in the DCI are all semi-persistent periodic SRS resource sets, an SRS resource associated with an SRI in the DCI is the latest semi-persistent periodic SRS resource indicated by the SRI before the receiving time of the DCI, and the semi-persistent periodic SRS resource is not transmitted for the first time after the activation of a media access control (MAC CE).

In the embodiment of the present application, the network side device may configure 2 or more SRS resource sets for the terminal for uplink transmission based on a codebook or a non-codebook.

For example, a network side device terminal sends 1P-SRS resource set, and as the channel quality changes, the base station finds that the channel quality of a beam corresponding to the P-SRS resource set is not good, and temporarily triggers an AP-SRS resource set for the terminal. For example, the SRS resource pointed to by the SRI in the DCI is the latest SRS resource before the terminal receives the SRI.

Referring to fig. 10, there are two possibilities: at this time, whether the SRS corresponding to the SRI in the subsequent DCI is a P-SRS resource set or an AP-SRS resource set.

The first possibility is: the quality of the wave beam channel corresponding to the AP-SRS resource set triggered by the base station is worse than that of the P-SRS, the base station hopes to continue scheduling the PUSCH according to the wave beam direction of the P-SRS, and at the moment, the SRI corresponds to the P-SRS.

The second possibility is: the quality of a wave beam channel corresponding to the AP-SRS resource set triggered by the base station is better than that of the P-SRS, the base station hopes to schedule the PUSCH according to the wave beam direction of the AP-SRS, and the SRI corresponds to the AP-SRS at the moment.

The base station can configure N SRS resource sets for uplink transmission, and set N bits (bit) in the DCI for indicating a certain subset of the N SRS resource sets to the terminal.

For example, the base station may configure 2 SRS Resource sets for the terminal in Radio Resource Control (RRC) for uplink transmission: set #1 is periodic and set #2 is aperiodic. And then the terminal sends SRS resource set #1 and SRS resource set #2 to the base station. After the base station receives the SRS signal, 1 bit is set in the DCI and is used for indicating SRS resource set to the terminal.

Table 3:

DCI bit	SRS resource set
		0	set#1
1	set#2

another example is: the base station configures 3 SRS resource sets for the terminal for uplink transmission: set #1 is periodic, set #2 and set #3 are both aperiodic, and after the terminal transmits SRS and the base station receives these SRS, the base station sets 2 bits in DCI to indicate SRS resource set to the terminal.

For another example, the base station configures the terminal to transmit 1P-SRS resource set, and as the channel quality changes, the base station finds that the beam channel quality corresponding to the P-SRS resource set is not good, and temporarily triggers one AP-SRS resource set 1 and one AP-SRS resource set 2 for the terminal.

In the existing communication system, the SRS resource pointed to by the SRI is the latest SRS resource before the terminal receives the SRI. And the terminal finds out that the latest SRS resource is AP-SRS resource set 2 according to the received SRI.

It can be understood that the SRS resource is generally transmitted on the last 6 symbols (symbols) of the uplink slot (UL slot), and the DCI can be transmitted only on the first 3 symbols (symbols) of the downlink slot (DL slot).

Suppose that AP-SRS resource set 2 is sent in the last 1 symbol of UL slot, and the DCI where the SRI is located is sent in the 1 st symbol of the next slot. Considering the time of channel estimation of the base station, the SRI in the DCI cannot be determined by the base station based on the channel estimation result of AP-SRS resource set 2 at this time, see fig. 11.

Considering the demodulation time of the base station channel estimation, a reference point (reference point) is defined for the terminal (the reference point should be earlier than the DCI receiving time), so that the terminal can find the correct SRS resource set corresponding to the SRI, see fig. 12.

If the DCI corresponds to the periodic SRS resource set, the terminal searches the latest periodic SRS resource corresponding to the DCI from the moment of receiving the DCI forward to be used as the target resource;

if the DCI corresponds to the aperiodic SRS resource set, the terminal searches the nearest aperiodic SRS resource corresponding to the DCI forward as the target resource from the reference point;

if the DCI corresponds to the semi-persistent periodic SRS resource set, the terminal searches forward the latest semi-persistent periodic SRS resource #1 corresponding to the DCI from the moment of receiving the DCI, and if the SRS resource #1 is not transmitted for the first time after the MAC CE is activated, the SRS resource #1 is the target resource; if SRS resource #1 is transmitted for the first time after MAC CE activation, skip this resource #1 and continue to look forward for a resource that satisfies the condition.

In the embodiment of the application, by configuring the terminal with the SRS resource sets of different time domain behaviors, the communication system can obtain better flexibility and time delay, and obtain better balance between system performance and overhead.

Referring to fig. 5, an embodiment of the present application provides an SRS resource configuration method, which is executed by a base station, and includes: step 501.

Step 501: sending DCI, wherein one or more bits in the DCI are used for indicating one or more target SRS resource sets to a terminal, and the target SRS resource sets are subsets of a plurality of SRS resource sets configured by a base station and used for uplink transmission.

In an embodiment of the present application, the method further includes: a plurality of SRS resource sets for uplink transmission are configured.

In the embodiment of the application, the terminal is configured with the SRS resource sets with different time domain behaviors, so that the communication system can obtain better flexibility and time delay, and the system performance and the overhead are better balanced.

Referring to fig. 6, an embodiment of the present application provides an SRS resource configuration apparatus, where the apparatus 600 includes:

a first receiving module 601, configured to receive DCI;

a determining module 602, configured to indicate one or more target SRS resource sets according to one or more bits in the DCI, where the target SRS resource sets are subsets of a plurality of SRS resource sets configured by a base station for uplink transmission.

In an embodiment of the present application, the apparatus further includes:

the first sending module is configured to send multiple SRS resource sets configured by the base station for uplink transmission.

In an embodiment of the present application, the determining module 602 is further configured to: if one or more target SRS resource sets corresponding to one or more bits in the DCI are periodic SRS resource sets, the SRS resource associated with the SRI in the DCI is the latest periodic SRS resource indicated by the SRI before the receiving time of the DCI; or if one or more target SRS resource sets corresponding to one or more bits in the DCI are all aperiodic SRS resource sets, the SRS resource associated with the SRI in the DCI is the latest aperiodic SRS resource indicated by the SRI before a reference point, where the reference point is located before the DCI receiving time; or, if one or more target SRS resource sets corresponding to one or more bits in the DCI are all semi-persistent periodic SRS resource sets, an SRS resource associated with an SRI in the DCI is a latest semi-persistent periodic SRS resource indicated by an SRI before a reception time of the DCI, and the semi-persistent periodic SRS resource set is not transmitted for the first time after the MAC CE is activated.

The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 4, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

Referring to fig. 7, an embodiment of the present application provides an SRS resource configuration apparatus, where the apparatus 700 includes:

a second sending module 701, configured to send DCI, where one or more bits in the DCI are used to indicate one or more target SRS resource sets to a terminal, where the target SRS resource sets are subsets of multiple SRS resource sets configured by a base station for uplink transmission.

In an embodiment of the present application, the apparatus 700 further comprises: a configuration module, configured to configure multiple SRS resource sets for uplink transmission.

The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 5, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

Fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and a processor 810.

Those skilled in the art will appreciate that the terminal 800 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 810 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.

It should be understood that in the embodiment of the present application, the input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics Processing Unit 8041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes a touch panel 8071 and other input devices 8072. A touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two portions of a touch detection device and a touch controller. Other input devices 14072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 801 receives downlink data from a base station, and then processes the downlink data to the processor 810; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 801 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.

Memory 809 may be used to store software programs or instructions and various data. The memory 809 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 809 can include a high-speed random access Memory, and can also include a nonvolatile Memory, wherein the nonvolatile Memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 810 may include one or more processing units; alternatively, the processor 810 may integrate an application processor, which primarily handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The terminal provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 4, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

The embodiment of the application also provides a base station. As shown in fig. 9, the base station 900 includes: antenna 901, radio frequency device 902, baseband device 903. The antenna 901 is connected to a radio frequency device 902. In the uplink direction, rf device 902 receives information via antenna 901 and sends the received information to baseband device 903 for processing. In the downlink direction, the baseband device 903 processes information to be transmitted and transmits the processed information to the radio frequency device 902, and the radio frequency device 902 processes the received information and transmits the processed information through the antenna 901.

The above-mentioned frequency band processing means may be located in the baseband device 903, and the method performed by the base station in the above embodiment may be implemented in the baseband device 903, where the baseband device 903 includes a processor 904 and a memory 905.

The baseband device 903 may include at least one baseband board, for example, a plurality of chips are disposed on the baseband board, as shown in fig. 9, wherein one of the chips, for example, the processor 904, is connected to the memory 905 to call the program in the memory 905 to perform the operation of the base station shown in the above method embodiment.

The baseband device 903 may further include a network interface 906 for exchanging information with the radio frequency device 902, for example, a Common Public Radio Interface (CPRI).

Specifically, the base station of the embodiment of the present invention further includes: the instructions or programs stored in the memory 905 and capable of being executed on the processor 904, and the processor 904 calls the instructions or programs in the memory 905 to execute the method executed by each module shown in fig. 7, and achieve the same technical effect, which is not described herein in detail to avoid repetition.

The base station provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 5, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the method embodiment shown in fig. 4 or fig. 5, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or may be embodied in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable hard disk, a compact disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be carried in a core network interface device. Of course, the processor and the storage medium may reside as discrete components in a core network interface device.

Those skilled in the art will recognize that in one or more of the examples described above, the functions described herein may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present application should be included in the scope of the present application.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. A Sounding Reference Signal (SRS) resource allocation method is executed by a terminal and comprises the following steps:

receiving downlink control information DCI;

2. The method of claim 1, further comprising:

3. The method of claim 1, further comprising:

alternatively, the first and second electrodes may be,

if one or more target SRS resource sets corresponding to one or more bits in the DCI are all semi-persistent periodic SRS resource sets, the SRS resource associated with the SRI in the DCI is the latest semi-persistent periodic SRS resource indicated by the SRI before the receiving time of the DCI, and the semi-persistent periodic SRS resource is not transmitted for the first time after being activated.

4. An SRS resource configuration method, performed by a base station, includes:

5. The method of claim 4, further comprising:

a plurality of SRS resource sets for uplink transmission are configured.

6. An apparatus for configuring SRS resources, comprising:

a first receiving module, configured to receive DCI;

7. An apparatus for configuring SRS resources, comprising:

8. A terminal, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 1 to 3.

9. A base station, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 4 to 5.

10. A readable storage medium, characterized in that it has stored thereon a program which, when being executed by a processor, carries out steps comprising the method according to any one of claims 1 to 5.