CN114501527B

CN114501527B - Aperiodic CSI reporting method, device, equipment and readable storage medium

Info

Publication number: CN114501527B
Application number: CN202011144460.3A
Authority: CN
Inventors: 左君; 张轶
Original assignee: China Mobile Communications Group Co Ltd; Research Institute of China Mobile Communication Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; Research Institute of China Mobile Communication Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2025-01-24
Anticipated expiration: 2040-10-23
Also published as: CN114501527A

Abstract

The embodiment of the present application provides a non-periodic CSI reporting method, apparatus, device and readable storage medium, the method comprising: receiving a first DCI, the first DCI being used for downlink scheduling authorization; triggering non-periodic CSI reporting according to a situation of receiving the first DCI or a situation of PDSCH transmission scheduled by the first DCI. In the embodiment of the present application, PDCCH overhead can be saved and non-periodic CSI feedback delay can be reduced.

Description

Aperiodic CSI reporting method, aperiodic CSI reporting device, aperiodic CSI reporting equipment and readable storage medium

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a method, a device and equipment for reporting aperiodic Channel State Information (CSI) and a readable storage medium.

Background

The New air interface (NR) standard supports triggering aperiodic CSI reporting (Report) through uplink scheduling grant (UL grant), and specifically, the specific flow is to activate an aperiodic CSI triggering state through a CSI request field (request field) of downlink control information (Downlink Control Information, DCI) format (format) 0_1 or 0_2. Each trigger state is associated with N (N is a positive integer) CSI reporting settings, and CSI reporting is performed according to the configuration of each CSI reporting, as shown in fig. 1. The channel occupied by the aperiodic CSI report triggered by the Uplink scheduling grant is a Physical Uplink shared channel (Physical Uplink SHARED CHANNEL, PUSCH), the aperiodic CSI report can be multiplexed with Uplink data to be transmitted on the PUSCH, and the specific time-frequency domain resource is determined by the DCI domain.

For some downlink primary services, uplink data transmission is rare, and triggering aperiodic CSI reporting through UL grant to transmit on PUSCH may cause waste of physical downlink control channel (Physical Downlink Control Channel, PDCCH) resources.

Disclosure of Invention

An object of an embodiment of the present application is to provide a method, an apparatus, a device, and a readable storage medium for reporting aperiodic CSI, which solve the problem that triggering aperiodic CSI reporting through UL grant causes PDCCH resource waste in PUSCH transmission.

In a first aspect, a method for reporting aperiodic CSI is provided, which is applied to a terminal, and includes:

receiving first Downlink Control Information (DCI) which is used for downlink scheduling grant;

Triggering aperiodic CSI reporting according to the condition of receiving the first DCI or the PDSCH transmission condition scheduled by the first DCI.

Optionally, the triggering the reporting of the aperiodic CSI according to the situation of receiving the first DCI or the PDSCH transmission situation scheduled by the first DCI includes:

triggering aperiodic CSI reporting through a first field in the first DCI if the first DCI is received;

Or alternatively

And triggering aperiodic CSI reporting if the transmission of the physical downlink shared channel PDSCH scheduled by the first DCI fails.

Optionally, the physical uplink control channel PUCCH resource reported by the aperiodic CSI may be the same as or different from a PUCCH resource used for HARQ-ACK feedback of the PDSCH scheduled by the first DCI.

Optionally, the method further comprises:

acquiring PUCCH resources reported by aperiodic CSI according to a second domain of the first DCI;

Or alternatively

Acquiring PUCCH resources reported by aperiodic CSI according to the indication domain of the multiplexed PUCCH resources for indicating HARQ-ACK feedback;

Or alternatively

And acquiring the PUCCH resources reported by the aperiodic CSI according to the index value and the offset of the PUCCH resources occupied by the HARQ-ACK of the PDSCH authorized by the downlink scheduling.

Optionally, the third field of the first DCI is used to indicate the number of triggered aperiodic CSI reports or the number of triggered CSI Report reports within a specific range.

Optionally, the content of the aperiodic CSI report is predefined or configured at the network side.

Optionally, the method further comprises:

And when the first DCI is missed, reporting predefined content on the corresponding PUCCH.

Optionally, the aperiodic CSI Report includes multiple CSI reports, where a carrier measured by the CSI Report is a carrier of a PDSCH authorized by downlink scheduling or configured by a network side.

In a second aspect, a method for reporting aperiodic CSI is provided, which is applied to a network-side device, and includes:

And sending first DCI to a terminal, wherein the first DCI is used for downlink scheduling grant, and the receiving condition of the first DCI or the PDSCH transmission condition of the first DCI scheduling is used for triggering the aperiodic CSI reporting of the terminal.

Optionally, the first field of the first DCI is used to trigger aperiodic CSI reporting.

Optionally, the indication manner of the PUCCH time-frequency resource reported by the aperiodic CSI includes:

The second domain of the first DCI indicates PUCCH resources reported by aperiodic CSI;

Or alternatively

Multiplexing a PUCCH resource indication field for indicating HARQ-ACK feedback;

Or alternatively

And taking the index value of the PUCCH resource occupied by the HARQ-ACK of the PDSCH with the downlink scheduling grant as a reference, adding an offset as the index value of the PUCCH resource for reporting the aperiodic CSI, for example, reporting the aperiodic CSI on the next available PUCCH resource of the PUCCH resource occupied by the HARQ-ACK of the PDSCH with the downlink scheduling grant.

In a third aspect, an aperiodic CSI reporting device is provided, which is applied to a terminal, and includes:

A first receiving module, configured to receive a first DCI, where the first DCI is used for downlink scheduling grant;

And the first reporting module is used for triggering the reporting of the aperiodic CSI according to the condition of receiving the first DCI or the PDSCH transmission condition scheduled by the first DCI.

In a fourth aspect, an aperiodic CSI reporting device is provided, and is applied to a network-side device, and includes:

A sending module, configured to send a first DCI to a terminal, where the first DCI is used for downlink scheduling grant, and a receiving situation of the first DCI scheduled PDSCH transmission situation is used to trigger reporting of the terminal aperiodic CSI.

In a fifth aspect there is provided a terminal comprising a processor, a memory and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the method according to the first or second aspect.

In a sixth aspect, a network side device is provided, which includes a processor, a memory, and a program stored on the memory and executable on the processor, the program implementing the steps of the method according to the first or second aspect when executed by the processor.

In a seventh aspect, there is provided a readable storage medium having stored thereon a program which when executed by a processor performs steps comprising the method according to the first or second aspect.

In the embodiment of the application, the PDCCH overhead can be saved, and the aperiodic CSI feedback time delay can be reduced.

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 designate like parts throughout the figures. In the drawings:

Fig. 1 is a schematic diagram of an aperiodic CSI triggering process;

fig. 2 is a schematic diagram of a wireless communication system according to an embodiment of the application

Fig. 3 is a schematic diagram of an aperiodic CSI reporting method according to an embodiment of the present application;

fig. 4 is a second schematic diagram of an aperiodic CSI reporting method according to an embodiment of the present application;

fig. 5 is a schematic diagram of aperiodic CSI reporting according to the first embodiment of the present application;

fig. 6 is a schematic diagram of aperiodic CSI reporting in embodiment two of the present application;

Fig. 7 is a schematic diagram of an aperiodic CSI reporting device according to an embodiment of the present application;

FIG. 8 is a second diagram of an aperiodic CSI reporting device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a terminal according to an embodiment of the present application;

Fig. 10 is a schematic diagram of a network side device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms "comprises," "comprising," or any other variation 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 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 at least one of the connected objects, e.g., a and/or B, meaning that it includes a single a, a single B, and that there are three cases of a and B.

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

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. However, the following description describes a New air interface (NR) system for purposes of example, and NR terminology is used in much of the following description, although these techniques are also applicable to applications other than NR system applications, such as the 6th generation (6th Generation,6G) communication system.

Embodiments of the present invention are described below with reference to the accompanying drawings. The aperiodic CSI reporting method, the aperiodic CSI reporting device, the aperiodic CSI reporting equipment and the readable storage medium can be applied to a wireless communication system. Referring to fig. 2, an architecture diagram of a wireless communication system according to an embodiment of the present invention is provided. As shown in fig. 2, the wireless communication system may include a network-side device 21 and a terminal 22, the terminal 22 may be denoted as UE22, and the terminal 22 may communicate (transmit signaling or transmit data) with the network-side device 21. In practical application, the connection between the devices may be wireless connection, and for convenience and intuitionistic representation of the connection relationship between the devices, a solid line is used for illustration in fig. 2.

The network side device 21 provided in the embodiment of the present invention may be a base station, which may be a commonly used base station, an evolved node b (evolved node base station, eNB), or a network side device in a 5G system (for example, a next generation base station (next generation node base station, gNB) or a transmitting and receiving point (transmission and reception point, TRP)).

The terminal 22 provided by the embodiment of the invention can be a Mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook or Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a Mobile internet device (Mobile INTERNET DEVICE, MID), a wearable device (Wearable Device) or a vehicle-mounted device, and the like.

Referring to fig. 3, an embodiment of the present application provides a method for reporting aperiodic CSI, where an execution body of the method is a terminal, and specific steps include step 301 and step 302.

Step 301, receiving a first DCI, wherein the first DCI is used for downlink scheduling grant;

alternatively, the format of the first DCI may be format 1_1 or 1_2, but is not limited thereto.

Step 302, triggering aperiodic CSI reporting according to the situation of receiving the first DCI or the PDSCH transmission situation scheduled by the first DCI.

In an embodiment of the present application, this is achieved in step 302 by:

If the first DCI is received, triggering aperiodic CSI reporting through a first domain in the first DCI;

and 2, triggering the aperiodic CSI reporting if the PDSCH transmission scheduled by the first DCI fails.

That is, the aperiodic CSI reporting is triggered by the DL grant, specifically, a trigger state (TRIGGER STATE) of a certain aperiodic CSI reporting may be triggered by one field in the DCI format 1_1 or 1_2, or one aperiodic CSI reporting may be triggered when downlink transmission fails.

In the embodiment of the present application, the physical uplink control channel (Physical Uplink Control Channel, PUCCH) resource reported by the aperiodic CSI is the same as or different from the PUCCH resource used by hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH) scheduled by the first DCI.

That is, the determining manner of the PUCCH resource reported by the aperiodic CSI includes:

Mode 1, the same PUCCH time-frequency resource is used for HARQ-ACK feedback of PDSCH scheduled by DL grant;

Mode 2 HARQ-ACK feedback for PDSCH scheduled by DL grant uses different PUCCH time-frequency resources.

In the embodiment of the application, the method further comprises the steps of acquiring the PUCCH resources (time domain resources and/or frequency domain resources) reported by the aperiodic CSI according to the second domain of the first DCI, or acquiring the PUCCH resources reported by the aperiodic CSI according to the indication domain of the PUCCH resources indicating the HARQ-ACK feedback, or acquiring the PUCCH resources reported by the aperiodic CSI according to the PUCCH resources occupied by the HARQ-ACK of the downlink scheduling authorized PDSCH.

That is, the indication manner of the PUCCH time-frequency resource reported by the aperiodic CSI is:

a) Adding a new DCI domain (such as a second domain of the first DCI) to indicate PUCCH resources reported by the CSI;

b) Multiplexing a PUCCH resource indication field for indicating HARQ-ACK feedback, namely determining according to the multiplexed indication field for indicating the PUCCH resource for indicating the HARQ-ACK feedback;

c) And acquiring the PUCCH resources reported by the aperiodic CSI according to the index value and the offset of the PUCCH resources occupied by the HARQ-ACK of the PDSCH of the downlink scheduling grant, namely feeding back on the next available PUCCH resources of the PUCCH resources occupied by the HARQ-ACK of the PDSCH of the DL grant scheduling.

In the embodiment of the present application, the third field of the first DCI is used to indicate the number of triggered aperiodic CSI reports or the number of triggered CSI Report reports in a combination (within a specific range).

That is, there is a field in the DL grant to indicate the total number of triggered aperiodic CSI reports or the total number of triggered CSI reports within one combination. The information can help the terminal to detect whether the DCI is lost or not, and avoid that the HARQ-ACK cannot be fed back correctly because the downlink DCI is lost.

It can be appreciated that the "one combination" is DCI within one HARQ feedback window or N (N is a positive integer) pieces of DCI, where N may be predefined or configured by the network side.

In the embodiment of the application, the content of the aperiodic CSI report is predefined or configured at the network side.

In the embodiment of the present application, the method further includes reporting predefined content, for example, a specific bit value, for example, all 0 s of Xbit or all 1 s of Xbit, on the corresponding PUCCH when the first DCI is missed, so that the UE can correctly calculate the number of bits of Uplink Control Information (UCI) to be reported, thereby selecting PUCCH resources, and then the base station side can know that the UE side has missed after receiving all 0 s or all 1 s, and the UE cannot report correct CSI but can still report HARQ-ACK.

In the embodiment of the present application, the aperiodic CSI Report includes a plurality of CSI reports, and the carrier measured by the CSI Report is a carrier of the PDSCH authorized by downlink scheduling or configured by the network side.

Referring to fig. 4, an embodiment of the present application provides a method for reporting aperiodic CSI, where an execution body of the method is a network-side device, and the specific steps include step 401.

Step 401, a first DCI is sent to a terminal, where the first DCI is used for downlink scheduling grant, and a receiving situation of the first DCI or a PDSCH transmission situation scheduled by the first DCI is used for triggering reporting of aperiodic CSI of the terminal.

In the embodiment of the present application, the first field of the first DCI is used to trigger aperiodic CSI reporting.

In the embodiment of the present application, the indication manner of the PUCCH time-frequency resource reported by the aperiodic CSI includes:

Or alternatively

Embodiments of the present application will be described below with reference to the first and second embodiments.

Embodiment one:

As shown in fig. 5, subframes 1 to 4 are downlink subframes (dl#1 to dl#4), subframe 5 is an uplink subframe (ul#5), and subframe 5 includes two PUCCH resources, PUCCH resource 1 (resource # 1) and PUCCH resource 2 (resource # 2), respectively. The network side transmits DL grant, i.e., downlink DCI, in subframes 1-4, respectively schedules 4 PDSCH transmissions, pdsch#1-pdsch#4, respectively. Triggering one non-periodic CSI report when the PDSCH transmission fails. And the terminal receives the PDSCH in the corresponding time-frequency domain resource according to the received DCI, and if the terminal detects that the PDSCH transmission scheduled by the DCI of the subframe #2 fails, the terminal reports the aperiodic CSI once. The content of the aperiodic CSI report is predefined and is a subband CQI report, and the subband measured by the CSI report is a subband occupied by the PDSCH scheduled by the DCI of subframe # 2. According to the indication field in the DCI, the HARQ-ACK of the PDSCH scheduled by the DCI of the subframes 1-4 forms a HARQ-ACK codebook which is { HARQ-ACK of the PDSCH#1, HARQ-ACK of the PDSCH#2, HARQ-ACK of the PDSCH#3, HARQ-ACK of the PDSCH#4 }, and feeds back on the PUCCH resource 1 of the subframe # 5.

If the PUCCH resources occupied by the aperiodic CSI report occupy the same resources as the HARQ-ACK, the terminal feeds back { HARQ-ACK of PDSCH#1, HARQ-ACK of PDSCH#2, HARQ-ACK of PDSCH#3, HARQ-ACK of PDSCH#4 } and CQI of the subband of PDSCH#2 on the PUCCH resource 1.

If the PUCCH resource occupied by the aperiodic CSI report occupies a different resource from the HARQ-ACK, the terminal may feed back { HARQ-ACK for pdsch#1, HARQ-ACK for pdsch#2, HARQ-ACK for pdsch#3, HARQ-ACK for pdsch#4 } on PUCCH resource 1, and CQI of the subband of pdsch#2 on the next available PUCCH resource (e.g., PUCCH resource 2).

Embodiment two:

As shown in fig. 6, subframes 1 to 4 are downlink subframes (dl#1 to dl#4), subframe 5 is an uplink subframe (ul#5), and subframe 5 includes two PUCCH resources, PUCCH resource 1 (resource # 1) and PUCCH resource 2 (resource # 2), respectively. The network side transmits DL grant, i.e., downlink DCI, in subframes 1-4, respectively schedules 4 PDSCH transmissions, pdsch#1-pdsch#4, respectively. The DCI contains a CSI request field, and the CSI request field is assumed to be 1 bit, when the CSI request field is 0, the aperiodic CSI report is not triggered, and when the CSI request field is 1, the aperiodic CSI report is triggered.

The network and the terminal side agree that the aperiodic CSI reporting content triggered by the DL grant is CQI of only reporting sub-bands for retransmission. There is a field (assumed to be CAI, CSI count indicator) in the DCI to indicate that several CSI reports are co-triggered within a HARQ feedback window. As shown in fig. 6, the CSI request field of DCI in subframe #2 is 1, triggering aperiodic CSI reporting, and the CAI fields of subframes 1 to 4 are 0,1, and 1, respectively.

If the CSI reporting and the HARQ-ACK feedback use different PUCCH resources, the CSI and the HARQ-ACK are respectively fed back on the corresponding PUCCH resources according to the indication of the DCI of the subframe # 2.

If the same PUCCH resource is used for CSI reporting and HARQ-ACK, for example, reporting { HARQ-ACK for pdsch#1, HARQ-ACK for pdsch#2, HARQ-ACK for pdsch#3, HARQ-ACK for pdsch#4 } and CQI for the subband indicated in CSI triggered state 1 in PUCCH resource 1.

If the DCI of subframe #2 is lost, since the CSI count fields of subframe #3 and subframe #4 are 1, the UE can know that one aperiodic CSI report is triggered on the lost subframe # 2. The UE can correctly judge the size of the PUCCH resource is the HARQ-ACK of the subframes # 1-4 and the CSI triggered by the subframe #2, so that the used PUCCH resource set is correctly judged, the HARQ-ACK of the subframes # 1-4 is reported on the PUCCH resource 1 of the PUCCH resource set according to the PUCCH resource ID (such as the PUCCH resource 1) indicated by the DCI domain, and special CSI bits (such as zero filling) are added to represent DCI loss. The network may receive HARQ-ACK information for subframes # 1-4 on PUCCH resource 1.

Referring to fig. 7, an embodiment of the present application provides an aperiodic CSI reporting device, applied to a terminal, where the device 700 includes:

a first receiving module 701, configured to receive a first DCI, where the first DCI is used for downlink scheduling grant;

the first reporting module 702 is configured to trigger aperiodic CSI reporting according to a situation of receiving the first DCI or a PDSCH transmission situation scheduled by the first DCI.

In the embodiment of the present application, the first reporting module 702 is further configured to trigger, if the first DCI is received, aperiodic CSI reporting through a first field in the first DCI, or trigger, if PDSCH transmission scheduled by the first DCI fails, aperiodic CSI reporting.

In the embodiment of the present application, the PUCCH resource reported by the aperiodic CSI is the same as or different from the PUCCH resource used for HARQ-ACK feedback of the PDSCH scheduled by the first DCI.

In an embodiment of the present application, the apparatus 700 further includes:

The acquisition module is configured to acquire a PUCCH resource reported by aperiodic CSI according to the second field of the first DCI, or acquire a PUCCH resource reported by aperiodic CSI according to an indication field indicating a PUCCH resource fed back by HARQ-ACK, or acquire a PUCCH resource reported by aperiodic CSI according to a PUCCH resource occupied by HARQ-ACK of the downlink scheduling grant.

In the embodiment of the present application, the third field of the first DCI is used to indicate the number of triggered aperiodic CSI reports or the number of triggered CSI Report reports in a combination.

And a second reporting module, configured to report predefined content, such as a specific bit value, for example, all 0 of Xbit or all 1 of Xbit, on the corresponding PUCCH when the first DCI is missed.

The device provided by the embodiment of the application can realize each process realized by the embodiment of the method shown in fig. 3 and achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Referring to fig. 8, an embodiment of the present application provides an aperiodic CSI reporting device, applied to a network-side device, where the device 800 includes:

A sending module 801, configured to send a first DCI to a terminal, where the first DCI is used for downlink scheduling grant, and a receiving situation of the first DCI or a PDSCH transmission situation scheduled by the first DCI is used to trigger reporting of aperiodic CSI of the terminal.

Or alternatively

In the embodiment of the present application, the third field of the first DCI is used to indicate the number of triggered aperiodic CSI reports or the number of triggered CSI Report reports within a specific range.

The device provided by the embodiment of the application can realize each process realized by the embodiment of the method shown in fig. 4 and achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Fig. 9 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 900 includes, but is not limited to, a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910.

Those skilled in the art will appreciate that the terminal 900 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 910 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 9 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042, with the graphics processor 9041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. Touch panel 9071, also referred to as a touch screen. The touch panel 9071 may include two parts, a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 901 receives downlink data from the network side device and processes the downlink data with the processor 910, and in addition, sends uplink data to the network side device. Typically, the radio frequency unit 901 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.

The memory 909 may be used to store software programs or instructions as well as various data. The memory 609 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 909 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (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 910 may include one or more processing units, and alternatively, processor 910 may integrate an application processor that primarily processes operating systems, user interfaces, and application programs or instructions, and a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 910.

The terminal provided by the embodiment of the present application can implement each process implemented by the embodiment of the method shown in fig. 3, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

The embodiment of the application also provides network side equipment. As shown in fig. 10, the network-side apparatus 1000 includes an antenna 1001, a radio frequency device 1002, and a baseband device 1003. The antenna 1001 is connected to a radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information via the antenna 1001, and transmits the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes information to be transmitted, and transmits the processed information to the radio frequency device 1002, and the radio frequency device 1002 processes the received information and transmits the processed information through the antenna 1001.

The above-described band processing apparatus may be located in the baseband apparatus 1003, and the method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 1003, and the baseband apparatus 1003 includes a processor 1004 and a memory 1005.

The baseband apparatus 1003 may include, for example, at least one baseband board, where a plurality of chips are disposed, as shown in fig. 10, where one chip, for example, a processor 1004, is connected to the memory 1005, so as to call a program in the memory 1005, and perform the network side device operation shown in the above method embodiment.

The baseband apparatus 1003 may further include a network interface 1006 for interacting with the radio frequency apparatus 1002, such as a common public radio interface (common public radio interface, abbreviated CPRI).

Specifically, the network side device of the embodiment of the present invention further includes instructions or programs stored in the memory 1005 and capable of running on the processor 1004, and the processor 1004 calls the instructions or programs in the memory 1005 to execute the method executed by each module shown in fig. 10, and achieves the same technical effects, so that repetition is avoided and therefore, the description is omitted herein.

The network side device provided by the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 4, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, where the program or the instruction realizes each process of the method embodiment shown in fig. 3 or fig. 4 and can achieve the same technical effect when executed by a processor, and in order to avoid repetition, a description is omitted herein.

Wherein the processor is a 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 (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The steps of a method or algorithm described in connection with the present disclosure may be embodied in hardware, or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable disk, a read-only optical 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. In the alternative, the storage medium may 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. The processor and the storage medium may reside as discrete components in a core network interface device.

Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these 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 foregoing embodiments have been provided for the purpose of illustrating the general principles of the present application in further detail, and are not to be construed as limiting the scope of the application, but are merely intended to cover any modifications, equivalents, improvements, etc. based on the teachings of the application.

It will be appreciated by those skilled in the art that 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 application may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) 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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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 modifications and variations can be made to 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 and the equivalents thereof, the present application is also intended to include such modifications and variations.

Claims

1. The aperiodic Channel State Information (CSI) reporting method is applied to a terminal and is characterized by comprising the following steps:

Triggering aperiodic CSI reporting according to the condition of receiving the first DCI or the physical downlink shared channel PDSCH transmission condition scheduled by the first DCI;

The third field of the first DCI is configured to indicate the number of triggered aperiodic CSI reports or the number of triggered CSI Report reports in a specific range, where the specific range is DCI or N pieces of DCI in one HARQ feedback window, and N is predefined or configured by a network side.

2. The method of claim 1, wherein triggering the aperiodic CSI report according to the case of receiving the first DCI or the case of PDSCH transmission scheduled by the first DCI comprises:

Or alternatively

And triggering aperiodic CSI reporting if the PDSCH transmission scheduled by the first DCI fails.

3. The method of claim 1, wherein the step of determining the position of the substrate comprises,

And the Physical Uplink Control Channel (PUCCH) resource reported by the aperiodic CSI is the same as or different from the PUCCH resource used by the HARQ-ACK feedback of the PDSCH scheduled by the first DCI.

4. The method according to claim 1, wherein the method further comprises:

Or alternatively

5. The method of claim 1, wherein the content of the aperiodic CSI report is predefined or network-side configured.

6. The method according to claim 1, wherein the method further comprises:

7. The method of claim 1, wherein the aperiodic CSI Report includes a plurality of CSI reports, and the carrier measured by the CSI Report is a carrier of a PDSCH of a downlink scheduling grant or is configured by a network side.

8. The aperiodic CSI reporting method is applied to network side equipment and is characterized by comprising the following steps:

Transmitting first DCI to a terminal, wherein the first DCI is used for downlink scheduling grant, and the receiving condition of the first DCI or the PDSCH transmission condition of the first DCI scheduling is used for triggering the aperiodic CSI reporting of the terminal;

9. The method of claim 8, wherein a first field of the first DCI is used to trigger aperiodic CSI reporting.

10. The method of claim 8 wherein the indicating manner of PUCCH time-frequency resource for aperiodic CSI reporting comprises:

Or alternatively

And adding an offset to the index value of the PUCCH resource occupied by the HARQ-ACK of the PDSCH with the downlink scheduling grant as a reference to be used as the index value of the PUCCH resource reported by the aperiodic CSI.

11. An aperiodic CSI reporting device applied to a terminal, comprising:

the first reporting module is used for triggering the reporting of the aperiodic CSI according to the condition of receiving the first DCI or the PDSCH transmission condition scheduled by the first DCI;

12. An aperiodic CSI reporting device applied to a network-side device, comprising:

A sending module, configured to send a first DCI to a terminal, where the first DCI is used for downlink scheduling grant, and a receiving situation of the first DCI or a PDSCH transmission situation scheduled by the first DCI is used to trigger reporting of aperiodic CSI of the terminal;

13. A terminal comprising a processor, a memory and a 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 7.

14. A network side device comprising a processor, a memory and a 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 of claims 8 to 10.

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