CN116918424A

CN116918424A - Method and device for reporting channel state information, terminal equipment and network equipment

Info

Publication number: CN116918424A
Application number: CN202180095051.5A
Authority: CN
Inventors: 张轶; 徐婧; 梁彬
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2023-10-20
Also published as: WO2022236635A1

Abstract

The embodiment of the application provides a method and a device for reporting channel state information, terminal equipment and network equipment, wherein the method comprises the following steps: reporting a first Channel State Information (CSI) report by a terminal device, wherein the first CSI report belongs to a first type of CSI report; the first type CSI report comprises channel quality indication CQI, and does not comprise rank indication RI and/or precoding matrix indication PMI; or, only calculating or updating CQI in the first type CSI report; the CQI in the first CSI report is determined based on RI and/or PMI in a second CSI report, wherein the second CSI report belongs to a second type of CSI report; wherein, the second type CSI report includes RI and/or PMI, and the RI and/or PMI is calculated or updated.

Description

Method and device for reporting channel state information, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a method and a device for reporting channel state information, terminal equipment and network equipment.

Background

In order to meet both low latency and high reliability characteristics of low latency high reliability communication (URLLC) traffic, the terminal device needs to send channel state information (Channel State Information, CSI) reports to the network to assist the network in transmission scheduling. At present, the time for processing the CSI report by the terminal equipment is long, so that the terminal equipment cannot timely send the CSI report, and the CSI report received by the network cannot accurately reflect the channel quality.

Disclosure of Invention

The embodiment of the application provides a method and a device for reporting channel state information, terminal equipment and network equipment.

The method for reporting the channel state information provided by the embodiment of the application comprises the following steps:

reporting a first CSI report by terminal equipment, wherein the first CSI report belongs to a first type of CSI report; wherein the first CSI report includes a channel quality Indication (Channel Quality Indicator, CQI) and does not include a Rank Indication (RI) and/or a precoding matrix Indication (Precoding Matrix Indicator, PMI); or, only calculating or updating CQI in the first type CSI report;

the CQI in the first CSI report is determined based on RI and/or PMI in a second CSI report, wherein the second CSI report belongs to a second type of CSI report; wherein, the second type CSI report includes RI and/or PMI, and the RI and/or PMI is calculated or updated.

the method comprises the steps that network equipment receives a first CSI report reported by terminal equipment, wherein the first CSI report belongs to a first type of CSI report; wherein, the first type CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report;

The reporting device of the channel state information provided by the embodiment of the application is applied to terminal equipment, and comprises the following components:

the reporting unit is used for reporting a first CSI report, wherein the first CSI report belongs to a first type of CSI report; wherein, the first type CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report;

The reporting device of the channel state information provided by the embodiment of the application is applied to network equipment, and comprises the following components:

the receiving unit is used for receiving a first CSI report reported by the terminal equipment, wherein the first CSI report belongs to a first type of CSI report; wherein,

the first type CSI report comprises CQI, and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report;

The terminal equipment provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the reporting method of the channel state information.

The network equipment provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the reporting method of the channel state information.

The chip provided by the embodiment of the application is used for realizing the method for reporting the channel state information.

Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory so that the device provided with the chip executes the method for reporting the channel state information.

The computer readable storage medium provided by the embodiment of the application is used for storing a computer program, and the computer program enables a computer to execute the method for reporting the channel state information.

The computer program product provided by the embodiment of the application comprises computer program instructions, and the computer program instructions enable a computer to execute the method for reporting the channel state information.

The computer program provided by the embodiment of the application enables the computer to execute the method for reporting the channel state information when the computer program runs on the computer.

Through the technical scheme, the first CSI report reported by the terminal equipment belongs to a first type of CSI report, wherein the first type of CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report; therefore, the processing time of the terminal equipment to the CSI report can be reduced, so that the reporting of the CSI report is more timely, the CSI report which is used by a network is avoided, and on the other hand, the uplink feedback overhead caused by the CSI report can be reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

Fig. 2 is a flow chart of a method for reporting channel state information according to an embodiment of the present application;

FIG. 3 is a timing diagram of a CSI report according to an embodiment of the present application;

fig. 4 is a timing diagram of a CSI report according to an embodiment of the present application;

fig. 5 is a timing diagram of a CSI report according to an embodiment of the present application;

fig. 6 is a timing diagram of CSI reporting according to an embodiment of the present application;

fig. 7 is a schematic diagram of the structural composition of a reporting device for channel state information according to an embodiment of the present application;

fig. 8 is a schematic diagram II of the structural composition of a reporting device for channel state information provided in the embodiment of the present application;

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

FIG. 10 is a schematic block diagram of a chip of an embodiment of the application;

fig. 11 is a schematic block diagram of a communication system provided in an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. 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 technical scheme of the embodiment of the application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), systems, 5G communication systems, future communication systems, or the like.

An exemplary communication system 100 to which embodiments of the present application may be applied is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Alternatively, the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in the LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system, etc.

The communication system 100 further includes at least one terminal 120 located within the coverage area of the network device 110. "terminal" as used herein includes, but is not limited to, connection via wireline, such as via public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.

Alternatively, direct to Device (D2D) communication may be performed between the terminals 120.

Alternatively, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Fig. 1 illustrates one network device and two terminals, alternatively, the communication system 100 may include multiple network devices and each network device may include other numbers of terminals within its coverage area, which is not limited by the embodiment of the present application.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited by the embodiment of the present application.

It should be understood that a device having a communication function in a network/system according to an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal 120 with communication functions, where the network device 110 and the terminal 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description describes related technologies of the embodiments of the present application, and the following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as alternatives, which all belong to the protection scope of the embodiments of the present application.

NR CSI reporting

In NR, CSI reporting (CSI report) is obtained based on measurement of channel state information-Reference Signal (CSI-RS) resources, and the time domain characteristics of CSI reporting can be divided into periodic, semi-persistent and aperiodic three types, which are described below, respectively.

Periodic CSI reporting: the periodicity and offset of CSI reports are configured by radio resource control (Radio Resource Control, RRC) signaling. Specifically, the terminal device receives the RRC signaling sent by the base station, and periodically transmits the CSI report on a physical uplink control channel (Physical Uplink Control Channel, PUCCH) configured by the RRC signaling.

Semi-persistent CSI reporting: when semi-persistent CSI reports are transmitted on PUCCH, media access Control (Media Access Control, MAC) Element (CE) signaling activation/deactivation is required; specifically, after the MAC CE signaling is activated, the terminal device periodically transmits the CSI report on the PUCCH resource. When semi-persistent CSI reports are transmitted on a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), downlink control information (Downlink Control Information, DCI) activation/deactivation is required; specifically, after the DCI is activated, the terminal device periodically transmits the CSI report on the PUSCH resource.

Aperiodic CSI reporting: DCI triggering is needed; specifically, after receiving the DCI trigger aperiodic CSI report, the terminal equipment transmits the CSI report once on the PUSCH resource indicated by the DCI.

CSI reference resources

The CSI reference resource (CSI reference resource) of one serving cell is defined as follows:

-in the frequency domain, CSI reference resources are defined as a set of downlink physical resource blocks over a CSI-associated bandwidth;

in the time domain, for the CSI report reported by the uplink time slot n', the reference resource is a downlink time slot n-n _{CSI_ref} Wherein:

μ _DL sum mu _UL The subcarrier spacing is respectively downlink and uplink;

For periodic CSI reporting and semi-persistent CSI reporting, if only one CSI-RS (e.g., SSB) resource for channel measurement is configured, then n _{CSI_ref} Is greater than or equal toAnd such that n-n _{CSI_ref} Associated with a valid downlink time slot; if multiple CSI-RS (e.g., SSB) resources for channel measurement are configured, then n _{CSI_ref} Is greater than or equal toAnd such that n-n _{CSI_ref} Associated with a valid downlink time slot.

For aperiodic CSI reporting, if the DCI triggering the CSI report and the CSI report are in the same timeslot, the CSI reference resource is the same valid downlink timeslot as the DCI triggering the CSI report; otherwise, n _{CSI_ref} Is greater than or equal toIs set to be a minimum value of (c),and n-n is such that _{CSI_ref} Associated with a valid downlink time slot. Where Z' represents the number of symbols that need to be spaced between the last symbol of the CSI measurement resource to the first symbol of the CSI report.

A slot may be considered a valid downlink slot if the following conditions are met at the same time:

1) The time slot contains at least one downlink symbol or flexible symbol configured by a higher layer;

2) The time slot does not fall within the measurement gap configured for the terminal device.

CSI reporting configuration

In NR, the terminal device supports up to 48 CSI reporting configurations (CSI-ReportConfig) in one serving cell, in each CSI reporting configuration, resources for channel measurement (i.e. resourcefchannelmeasurement) have to be associated, alternatively one or two resources for interference measurement (i.e. CSI-IM-resourcesfortterface or nzp-CSI-RS-resourcesfortterface) may be associated. In the CSI report configuration, a report type (reportConfigType) is a periodic CSI report, a semi-persistent CSI report, or an aperiodic CSI report, and for the periodic CSI report and the semi-persistent CSI report based on PUCCH transmission, the periodicity and offset of its CSI report (i.e., CSI-reportcyiodityandoffset) are configured, and PUCCH resources (i.e., PUCCH-CSI-resource list) used for reporting the CSI report are reported. For aperiodic CSI reports, a slot offset (i.e., reportSlotOffsetList) between the DCI triggering the CSI report and the CSI report is configured. In addition, in CSI reporting configuration, a reporting quality (report quality) is also configured, and the reporting quality may include one or more parameters. As an example, the reporting volume supports the following: 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', 'cri-RI-CQI', 'cri-RSRP', 'cri-SINR', 'ssb-Index-RSRP', 'ssb-Index-SINR' or 'cri-RI-LI-PMI-CQI'.

CQI

The terminal device needs to be based on RI and PMI when calculating CQI.

If the terminal equipment is not configured with the high-level parameter timeRestriction ForChannelMessaging, the terminal equipment obtains channel measurement for calculating the CSI value reported in the uplink time slot n, and the NZP CSI-RS of the associated CSI resource configuration in the CSI report configuration is based on the CSI reference resource; otherwise, only the NZP CSI-RS of the associated CSI resource configuration in the CSI reporting configuration can be based on the latest time not later than the CSI reference resource.

If the terminal is not configured with the high-level parameter timeRestriction Forterfacemeasurements, the terminal equipment obtains interference measurement for calculating the CSI value reported in the uplink time slot n, and the CSI-IM for the associated CSI resource configuration in the CSI report configuration and/or the NZP CSI-RS for the interference measurement should be based on the CSI-IM not later than the CSI reference resource; otherwise, only the CSI-IM of the associated CSI resource configuration in the CSI reporting configuration and/or the NZP CSI-RS for interference measurement can be based on the latest time not later than the CSI reference resource.

Aperiodic CSI reporting

The aperiodic CSI report is triggered by the CSI request field (CSI request field) in the DCI, assuming CSI request field has N bits, N is a positive integer, when the number of CSI trigger states configured in the higher layer signaling CSI-apreriodics triggerstatelist is less than or equal to 2 ^N -at 1, the CSI triggered status is indicated directly in CSI request field; when the number of the CSI trigger states configured in the high-level signaling CSI-AperiodicTriggerStateList is larger than 2N-1, the terminal equipment firstly receives a sub-selection indication, wherein the sub-selection indication is used for 2 at most ^N -1 trigger state maps to a code point (codepoint) of CSI request field in DCI.

In order to meet both low latency and high reliability characteristics of the ullc service (e.g., to ensure that the number of transmissions of the ullc service within the allowable range of latency may reach the reliability requirement), more accurate channel quality needs to be obtained during primary transmission and/or retransmission, so as to assist the base station in scheduling primary transmission/retransmission. Therefore, it is necessary to realize this by:

mode 1) the periodic configuration of periodic CSI reporting and semi-persistent CSI reporting is very short;

mode 2) aperiodic CSI reporting is triggered using DCI.

If the method 1) is used for realizing, the base station needs to transmit the CSI-RS resource in a high density to obtain the channel quality feedback updated quickly, which increases the reference signal cost of the system on the one hand and increases the measurement and calculation cost of the terminal equipment on the other hand, meanwhile, due to the influence of the CSI measurement time, the CSI report reported by the terminal equipment needs to be obtained based on the CSI-RS measurement before the CSI reference resource, and for the periodical CSI report and the semi-persistent CSI report reported by the uplink time slot n, the CSI reference resource is the CSI-RS transmitted by the time slot n-4/n-5 at the earliest (the condition that the uplink and the downlink have the same subcarrier spacing is assumed), the interference condition suffered by the terminal equipment is greatly affected by the scheduling of the adjacent cells, and due to the longer time interval between the measurement resource and the reporting of the CSI report, the interference possibly suffered by the terminal equipment when the terminal equipment reports the CSI report is changed, so that the CSI report is inaccurate.

If implemented using mode 2), the base station needs to transmit DCI to trigger the transmission of CSI-RS and CSI reporting, on the one hand, the DCI used to trigger CSI reporting can only be DCI for scheduling PUSCH (i.e. UL DCI), and the terminal device may be asymmetric in uplink and downlink traffic and have no uplink traffic requirements, so that UL DCI is wasted to trigger CSI reporting. On the other hand, for aperiodic CSI reports, the processing time from receiving UL DCI to sending CSI reports is long, and for delay-critical traffic, if the initial transmission is wrong and the delay requirement cannot tolerate CSI reporting, the base station can only schedule by using a very conservative modulation coding strategy (Modulation and Coding Scheme, MCS), resulting in a decrease in system transmission efficiency.

For this reason, the following technical solutions of the embodiments of the present application are provided. The embodiment of the application provides a CSI enhancement scheme for URLLC service, aiming at meeting the time delay and reliability requirements of the URLLC service and improving the network transmission efficiency. It should be noted that, although the technical solution of the embodiment of the present application may be applied to a URLLC service, the present application is not limited to a URLLC service, and may also be applied to other types of services.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the technical solution of the present application is described in detail below through specific embodiments. The above related technologies may be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.

Fig. 2 is a flow chart of a method for reporting channel state information provided by an embodiment of the present application, as shown in fig. 2, where the method for reporting channel state information includes the following steps:

step 201: the method comprises the steps that terminal equipment reports a first CSI report, network equipment receives the first CSI report reported by the terminal equipment, and the first CSI report belongs to a first type of CSI report; wherein, the first type CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report; the CQI in the first CSI report is determined based on RI and/or PMI in a second CSI report, wherein the second CSI report belongs to a second type of CSI report; wherein, the second type CSI report includes RI and/or PMI, and the RI and/or PMI is calculated or updated.

In the embodiment of the application, two types of CSI reports, namely a first type of CSI report and a second type of CSI report, are distinguished. Both types of CSI reporting are described below.

First class CSI reporting

The first type of CSI report has at least one of the following characteristics:

characteristics A1: the first type CSI report includes CQI and does not include RI and/or PMI.

Characteristics A2: only CQI is calculated or updated in the first type CSI report;

second-class CSI reporting

The second type of CSI report has two features:

characteristics B1: the second type CSI report includes RI and/or PMI.

Characteristics B2: RI and/or PMI in the second type CSI report is calculated or updated.

As an example, the CQI is included in the first type CSI report, and RI and/or PMI is not included.

As an example, all parameters of a report quantity (report quality) configuration in a CSI report configuration are included in the first type of CSI report, but only CQI therein is calculated or updated.

As an example, all parameters of a report quantity (report quality) configuration in the CSI report configuration are included in the second type of CSI report, and all parameters are calculated or updated.

In the embodiment of the application, a terminal device reports a first CSI report, and the first CSI report belongs to a first type of CSI report; the CQI in the first CSI report is determined based on RI and/or PMI in a second CSI report, which belongs to a second type of CSI report. The first type of CSI report has at least one of the following advantages over the second type of CSI report: the CSI report contains fewer parameters; there are fewer parameters to calculate or update in CSI reports. Thus, the time for the terminal equipment to process the first CSI report can be shortened, and the uplink feedback overhead caused by the first CSI report can be reduced.

Here, the CQI in the first CSI report is determined based on the RI and/or PMI in the second CSI report, and there may be the following embodiments:

first embodiment: the CQI in the first CSI report is calculated or obtained according to the RI and/or PMI in the second CSI report.

Second embodiment: the RI and/or PMI in the first CSI report is obtained according to the RI and/or PMI in the second CSI report, for example, the RI and/or PMI in the second CSI report may be used as the RI and/or PMI in the first CSI report; the CQI in the first CSI report is calculated or obtained according to the RI and/or PMI in the first CSI report.

In the embodiment of the present application, on the one hand, the reporting amount in the first CSI report may be referred to as a first reporting amount, and the reporting amount in the second CSI report may be referred to as a second reporting amount. On the other hand, the manner of calculating or updating the parameters in the first CSI report may be referred to as a first reporting mode, and the manner of calculating or updating the parameters in the second CSI report may be referred to as a second reporting mode.

In the embodiment of the present application, the CSI report is associated with a CSI reporting configuration, and for the first CSI report and the second CSI report, there are two cases as follows.

Case one: in some alternative embodiments, the first CSI report and the second CSI report are associated to the same CSI reporting configuration.

And a second case: in some alternative embodiments, the first CSI report and the second CSI report are associated with different CSI reporting configurations.

The time domain positional relationship between the first CSI report and the second CSI report is described below in connection with the above two cases. In the following description, the first symbol carrying the CSI report refers to the first symbol carrying the CSI report, the last symbol carrying the CSI report refers to the last symbol carrying the CSI report, and herein, the CSI report may refer to the first CSI report, the second CSI report, or the target CSI report.

Scheme one

The first CSI report and the second CSI report are associated to a first CSI reporting configuration; the second CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the first CSI report.

In some alternative embodiments, the time domain positions of the first CSI report and the second CSI report further satisfy at least one of the following relationships:

relationship one: the starting position of the first symbol carrying the first CSI report is not earlier than the first time after the last symbol carrying the second CSI report.

In some alternative embodiments, the first time is protocol-agreed or network device configured by higher layer signaling. As an example, the higher layer signaling includes at least one of: RRC signaling, SIB, MAC layer signaling.

Relationship II: a time interval between a first time domain location and a second time domain location is greater than or equal to a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.

In some alternative embodiments, the first time domain position is a last symbol carrying the second CSI report.

In some optional embodiments, the second time domain position is a first symbol of a CSI reference resource corresponding to the first CSI report; alternatively, the second time domain position is a first symbol of a most recent channel measurement resource (Channel Measurement Resource, CMR) or interference measurement resource (Interference Measurement Resource, IMR) that is no later than a CSI reference resource to which the first CSI report corresponds.

In some alternative embodiments, the second time is protocol-agreed or network device configured by higher layer signaling. As an example, the higher layer signaling includes at least one of: RRC signaling, SIB, MAC layer signaling.

Relationship III: a time interval between a first time domain location and a second time domain location is less than or equal to a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.

In some alternative embodiments, the first time domain position is a first symbol carrying the second CSI report.

In some optional embodiments, the second time domain position is a last symbol of a CSI reference resource corresponding to the first CSI report; or the second time domain position is the last symbol of a CMR or IMR, which is the most recent CMR or IMR of the CSI reference resource corresponding to the first CSI report.

The technical scheme of the embodiment of the application has the advantages that signaling overhead is small, meanwhile, because CQI in the first CSI report is determined based on RI and/or PMI in the second CSI report, the definition of the position of the second CSI report is indispensable, meanwhile, the definition of the position of the second CSI report introduces the limitation of the processing time of the terminal equipment, and the availability of the terminal equipment for calculating the CQI is ensured.

Scheme II

The first CSI report is associated with a first CSI reporting configuration, and the second CSI report is associated with a second CSI reporting configuration; the second CSI report is a most recent CSI report associated with the second CSI reporting configuration that is no later than the first CSI report.

In some alternative embodiments, the first CSI reporting configuration and the second CSI reporting configuration are associated, the association being protocol-agreed or network device configured by higher layer signaling. As an example, the higher layer signaling includes at least one of: RRC signaling, SIB, MAC layer signaling.

In some optional embodiments, part or all of the resource configurations (resource settings) associated with the first CSI reporting configuration and the second CSI reporting configuration are the same.

Here, if the portions of the resource configurations associated with the first CSI reporting configuration and the second CSI reporting configuration are the same, the same resource may be a resource for interference measurement, such as CSI-IM resource for interference measurement (CSI-IM-resource-for-interference) and/or non-zero power CSI-RS resource for interference measurement (nzp-CSI-RS-resource-for-interference).

The technical scheme of the embodiment of the application has the advantages of simple realization and minimum influence on the standard, and simultaneously, the CQI in the first CSI report is determined based on the RI and/or PMI in the second CSI report, so that the definition of the position of the second CSI report is indispensable, and meanwhile, the definition of the position of the second CSI report introduces the limitation of the processing time of the terminal equipment, thereby ensuring the availability of the terminal equipment for calculating the CQI.

In the embodiment of the present application, in the case that the first CSI report and the second CSI report are associated with the same CSI reporting configuration, there are several embodiments for determining what type of CSI report to report.

Scheme A

The first CSI report and the second CSI report are associated to a first CSI reporting configuration, the first CSI report and the second CSI report being periodic CSI reports or semi-persistent CSI reports based on PUCCH transmission.

1) In some alternative embodiments, for the first CSI report and the second CSI report, at least one of the following parameters is configured separately:

a first parameter for indicating a periodicity and/or offset of CSI reporting;

a second parameter for indicating PUCCH resources used for CSI reporting;

And a third parameter for indicating a time domain measurement limit of the channel measurement or the interference measurement.

Here, the first parameter is, for example, CSI-ReportPeriodicityAndOffset.

Here, the second parameter is, for example, pucch-CSI-resource list.

Here, the third parameter is, for example, timestrictionforchannelmeasuremen.

Here, since the payload sizes (payload sizes) of the first CSI report and the second CSI report are different, the corresponding PUCCH resources need to be configured separately.

In the embodiment of the present application, the terminal device determines, based on the first parameter, that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report.

The technical scheme of the embodiment of the application has the advantage of simple realization.

2) In some alternative embodiments, only one first parameter is configured or the same first parameter is configured for the first CSI report and the second CSI report, where the first parameter is used to indicate a periodicity and/or an offset of the CSI report.

Here, the first parameter is, for example, CSI-ReportPeriodicityAndOffset.

In the embodiment of the present application, the terminal device determines, based on the resource configuration associated with the first CSI reporting configuration, that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report.

Specifically, the terminal equipment determines that CMR does not exist between a third time domain position and a fourth time domain position based on the resource configuration related to the first CSI reporting configuration, and determines that a target CSI report belongs to the first type of CSI report if the CMR does not exist between the third time domain position and the fourth time domain position, otherwise, determines that the target CSI report belongs to the second type of CSI report; wherein the third time domain position is related to a third CSI report and the fourth time domain position is related to the target CSI report; the third CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the target CSI report. Here, the third CSI report may belong to the first type CSI report or the second type CSI report.

In some optional embodiments, the third time domain position is a last symbol carrying the third CSI report; or the third time domain position is the last symbol of the CSI reference resource corresponding to the third CSI report; or, the third time domain position is the last symbol of the most recent CMR of the CSI reference resource corresponding to the third CSI report.

In some alternative embodiments, the fourth time domain location is a first symbol carrying the target CSI report; or, the fourth time domain position is the first symbol of the CSI reference resource corresponding to the target CSI report; or, the fourth time domain position is the first symbol of a CMR or IMR, where the CMR or IMR is the most recent CMR or IMR that is no later than the CSI reference resource corresponding to the target CSI report.

The technical scheme of the embodiment of the application has the advantages that the terminal equipment can directly determine the type of the target CSI report according to the resource configuration associated with the CSI report, and the signaling overhead is small.

Scheme B

The first CSI report and the second CSI report are associated to a first CSI reporting configuration, the first CSI report and the second CSI report being aperiodic CSI reports.

In some optional embodiments, the network device sends DCI to the terminal device, and the terminal device receives DCI, where the DCI is used to trigger the first CSI reporting configuration associated target CSI report; the terminal device determines that the target CSI report belongs to the first type CSI report or the second type CSI report.

1) In some optional embodiments, the DCI carries first indication information, where the first indication information is used to indicate that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report; and the terminal equipment determines that the target CSI report belongs to the first type of CSI report or the second type of CSI report based on the first indication information in the DCI.

The scheme has the advantage of higher flexibility.

2) In some optional embodiments, the terminal device determines that the target CSI report belongs to the first type CSI report if a first rule is satisfied; and the terminal equipment determines that the target CSI report belongs to the second-type CSI report under the condition that the first rule is not satisfied.

The above scheme has the advantage of not bringing additional signaling overhead.

Here, optionally, the first rule is: the second CSI report is present at a third time before the first symbol carrying the target CSI report.

In some alternative embodiments, the third time is agreed upon by the protocol or configured by the network device through higher layer signaling. As an example, the higher layer signaling includes at least one of: RRC signaling, SIB, MAC layer signaling.

In the above technical solutions of the embodiments of the present application, the description about "CSI report" may be replaced by "CSI report event (CSI report instance)".

According to the technical scheme, the terminal equipment reports part of channel state information, so that the processing time of the terminal equipment on the CSI report can be reduced, the reporting of the CSI report is more timely, and the network is prevented from using the outdated CSI report.

The following describes the technical scheme of the embodiment of the present application with reference to specific application examples.

Application example 1

Example one:

the base station configures both the first CSI report and the second CSI report to be associated with the first CSI report configuration. The timing relation of the CSI report reported by the terminal device is shown in fig. 3, the terminal device reports the CSI report 2 at the time domain position corresponding to the CSI report 2, the CSI report 2 belongs to the first type of CSI report, the CSI report 1 is the latest CSI report which is not later than the CSI report 2, the time interval between the last symbol carrying the CSI report 1 and the first symbol carrying the CSI report 2 is greater than or equal to the first time, and the CSI report 1 belongs to the second type of CSI report, so that under the scene, the CQI in the CSI report 2 is calculated based on the RI and the PMI in the CSI report 1.

Example two:

the base station configures a first CSI report associated with the first CSI report configuration and a second CSI report associated with the second CSI report configuration. The timing relationship of the CSI report reported by the terminal device is shown in fig. 4, the terminal device reports the CSI report 11 at the time domain position corresponding to the CSI report 11, the CSI report 11 belongs to the first type of CSI report, the CSI report 21 is the latest CSI report not later than the CSI report 11, the time interval between the last symbol carrying the CSI report 21 and the first symbol carrying the CSI report 11 is greater than or equal to the first time, and the CSI report 21 belongs to the second type of CSI report, so that in this scenario, the CQI in the CSI report 11 is calculated based on the RI and PMI in the CSI report 21.

Application instance two

The base station configures both the first CSI report and the second CSI report to be associated with the first CSI report configuration.

Example one:

referring to fig. 5, the base station configures different periods and offsets for the first CSI report and the second CSI report. According to the configured period and offset, the terminal equipment respectively reports a CSI report 1, a CSI report 4 and a CSI report 7 on the corresponding positions of the CSI report 1/4/7, wherein the CSI report 1, the CSI report 4 and the CSI report 7 belong to a second type of CSI report; and the terminal equipment reports the CSI report 2, the CSI report 3, the CSI report 5 and the CSI report 6 on the positions corresponding to the CSI report 2/3/5/6 respectively, wherein the CSI report 2, the CSI report 3, the CSI report 5 and the CSI report 6 belong to a first type of CSI report.

Example two:

referring to fig. 6, the base station configures the same periodicity and offset for the first CSI report and the first CSI report, with the associated resource configuration as shown in fig. 6, with IMR and CMR, and the periodicity of the CMR and IMR being different. For CSI report 2, no later than the last CSI report of CSI report 2 is CSI report 1 (assuming CSI report 1 belongs to the second type of CSI report), no CMR occurs between CSI report 2 and CSI report 1, or no CMR occurs between the reference resource corresponding to CSI report 2 and the reference resource corresponding to CSI report 1, and then the terminal device determines that CSI report 2 belongs to the first type of CSI report.

Application example three

Example one:

adding a 1-bit indication domain into the DCI, wherein the value of the 1-bit indication domain is 0 (or 1) to represent the first-type CSI report, and the value of the 1-bit indication domain is 1 (or 0) to represent the second-type CSI report. And the terminal equipment receives the DCI, determines to trigger a target CSI report or target CSI report configuration through a CSI request (CSI request) domain in the DCI, and determines the type of the target CSI report or the type of the target CSI report associated with the target CSI report configuration through the 1-bit indication domain.

Example two:

and the terminal receives the DCI, determines to trigger a target CSI report or target CSI report configuration through a CSI request (CSI request) field in the DCI, and determines that the target CSI report belongs to a first type of CSI report if the CSI report exists within a certain time before the target CSI report related to the target CSI report or the target CSI report configuration and meets the condition related to the second CSI report.

Fig. 7 is a schematic structural diagram of a reporting device for channel state information according to an embodiment of the present application, which is applied to a terminal device, as shown in fig. 7, where the reporting device for channel state information includes:

a reporting unit 701, configured to report a first CSI report, where the first CSI report belongs to a first type of CSI report; wherein, the first type CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report;

In some alternative embodiments, the first CSI report and the second CSI report are associated to the same CSI reporting configuration; or,

The first CSI report and the second CSI report are associated to different CSI reporting configurations.

In some alternative embodiments, the first CSI report and the second CSI report are associated with a first CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the first CSI report.

In some optional embodiments, the first CSI report is associated with a first CSI reporting configuration and the second CSI report is associated with a second CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the second CSI reporting configuration that is no later than the first CSI report.

In some alternative embodiments, the first CSI reporting configuration and the second CSI reporting configuration are associated, the association being protocol-agreed or network device configured by higher layer signaling.

In some optional embodiments, part or all of the resource configuration associated with the first CSI reporting configuration and the resource configuration associated with the second CSI reporting configuration are the same.

In some alternative embodiments, the starting position of the first symbol carrying the first CSI report is not earlier than the first time after the last symbol carrying the second CSI report.

In some alternative embodiments, a time interval between a first time domain location and a second time domain location is equal to or greater than a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.

In some optional embodiments, the second time domain position is a first symbol of a CSI reference resource corresponding to the first CSI report; or,

the second time domain position is a first symbol of a CMR or IMR, which is a most recent CMR or IMR that is no later than a CSI reference resource to which the first CSI report corresponds.

In some alternative embodiments, a time interval between a first time domain location and a second time domain location is less than or equal to a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.

In some optional embodiments, the second time domain position is a last symbol of a CSI reference resource corresponding to the first CSI report; or,

The second time domain position is the last symbol of a CMR or IMR, which is the most recent CMR or IMR that is no later than the CSI reference resource to which the first CSI report corresponds.

In some alternative embodiments, the first CSI report and the second CSI report are associated to a first CSI reporting configuration, the first CSI report and the second CSI report being periodic CSI reports or semi-persistent CSI reports.

In some alternative embodiments, for the first CSI report and the second CSI report, at least one of the following parameters is configured separately:

a first parameter for indicating a periodicity and/or offset of CSI reporting;

a second parameter for indicating PUCCH resources used for CSI reporting;

In some alternative embodiments, the apparatus further comprises:

a determining unit 702 is configured to determine, based on the first parameter, that a target CSI report belongs to the first type CSI report or belongs to the second type CSI report.

In some alternative embodiments, only one first parameter is configured or the same first parameter is configured for the first CSI report and the second CSI report, where the first parameter is used to indicate a periodicity and/or an offset of the CSI report.

In some alternative embodiments, the apparatus further comprises:

a determining unit 702, configured to determine, based on the resource configuration associated with the first CSI reporting configuration, that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report.

In some optional embodiments, the determining unit 702 is configured to determine, based on the resource configuration associated with the first CSI reporting configuration, that no CMR exists between a third time domain location and a fourth time domain location, and determine that the target CSI report belongs to the first type CSI report, and otherwise determine that the target CSI report belongs to the second type CSI report;

wherein the third time domain position is related to a third CSI report and the fourth time domain position is related to the target CSI report; the third CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the target CSI report.

In some optional embodiments, the third time domain position is a last symbol carrying the third CSI report; or,

the third time domain position is the last symbol of the CSI reference resource corresponding to the third CSI report; or,

the third time domain position is the last symbol of the most recent CMR of the CSI reference resource corresponding to the third CSI report.

In some alternative embodiments, the fourth time domain location is a first symbol carrying the target CSI report; or,

the fourth time domain position is the first symbol of the CSI reference resource corresponding to the target CSI report; or,

the fourth time domain position is a first symbol of a CMR or IMR, which is a most recent CMR or IMR that is no later than the CSI reference resource to which the target CSI report corresponds.

In some alternative embodiments, the first CSI report and the second CSI report are associated to a first CSI reporting configuration, the first CSI report and the second CSI report being aperiodic CSI reports.

In some alternative embodiments, the apparatus further comprises:

a receiving unit, configured to receive DCI, where the DCI is configured to trigger the first CSI reporting configuration to associate a target CSI report;

a determining unit 702 is configured to determine that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report.

In some optional embodiments, the DCI carries first indication information, where the first indication information is used to indicate that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report;

The determining unit 702 is configured to determine, based on first indication information in the DCI, that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report.

In some optional embodiments, the determining unit 702 is configured to determine that the target CSI report belongs to the first type CSI report if a first rule is satisfied; and if the first rule is not met, determining that the target CSI report belongs to the second type of CSI report.

In some alternative embodiments, the first rule is: the second CSI report is present at a third time before the first symbol carrying the target CSI report.

In some alternative embodiments, the first time is protocol-agreed or network device configured by higher layer signaling.

In some alternative embodiments, the second time is protocol-agreed or network device configured by higher layer signaling.

In some alternative embodiments, the third time is agreed upon by the protocol or configured by the network device through higher layer signaling.

It should be understood by those skilled in the art that the description of the foregoing reporting apparatus for channel state information according to the embodiments of the present application may be understood with reference to the description of the reporting method for channel state information according to the embodiments of the present application.

Fig. 8 is a schematic diagram ii of the structural composition of a reporting device for channel state information provided by the embodiment of the present application, which is applied to a network device, as shown in fig. 8, where the reporting device for channel state information includes:

a receiving unit 801, configured to receive a first CSI report reported by a terminal device, where the first CSI report belongs to a first type CSI report; wherein, the first type CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report;

a first parameter for indicating a periodicity and/or offset of CSI reporting;

a second parameter for indicating PUCCH resources used for CSI reporting;

In some alternative embodiments, the apparatus further comprises:

a sending unit, configured to send DCI to the terminal device, where the DCI is used to trigger the first CSI reporting configuration associated target CSI report.

In some optional embodiments, the DCI carries first indication information, where the first indication information is used to indicate that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report.

Fig. 9 is a schematic block diagram of a communication device 900 according to an embodiment of the present application. The communication device may be a terminal device or a network device, and the communication device 900 shown in fig. 9 includes a processor 910, where the processor 910 may call and execute a computer program from a memory to implement a method according to an embodiment of the present application.

Optionally, as shown in fig. 9, the communication device 900 may also include a memory 920. Wherein the processor 910 may invoke and run a computer program from the memory 920 to implement the method in the embodiments of the present application.

Wherein the memory 920 may be a separate device from the processor 910 or may be integrated in the processor 910.

Optionally, as shown in fig. 9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

Wherein transceiver 930 may include a transmitter and a receiver. Transceiver 930 may further include antennas, the number of which may be one or more.

Optionally, the communication device 900 may be specifically a network device in the embodiment of the present application, and the communication device 900 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 900 may be specifically a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 900 may implement corresponding processes implemented by the mobile terminal/terminal device in each method according to the embodiment of the present application, which are not described herein for brevity.

Fig. 10 is a schematic structural view of a chip of an embodiment of the present application. The chip 1000 shown in fig. 10 includes a processor 1010, and the processor 1010 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 10, the chip 1000 may further include a memory 1020. Wherein the processor 1010 may call and run a computer program from the memory 1020 to implement the methods in embodiments of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

Optionally, the chip 1000 may also include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and in particular, may obtain information or data sent by the other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. Wherein the processor 1010 may control the output interface 940 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 11 is a schematic block diagram of a communication system 1100 provided by an embodiment of the present application. As shown in fig. 11, the communication system 1100 includes a terminal device 1110 and a network device 1120.

The terminal device 1110 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1120 may be used to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

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 solution. 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 application.

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

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for reporting channel state information, the method comprising:

reporting a first Channel State Information (CSI) report by a terminal device, wherein the first CSI report belongs to a first type of CSI report; the first type CSI report comprises channel quality indication CQI, and does not comprise rank indication RI and/or precoding matrix indication PMI; or, only calculating or updating CQI in the first type CSI report;

the CQI in the first CSI report is determined based on RI and/or PMI in a second CSI report, wherein the second CSI report belongs to a second type of CSI report; wherein, the second type CSI report includes RI and/or PMI, and the RI and/or PMI is calculated or updated.
The method of claim 1, wherein,

the first CSI report and the second CSI report are associated to the same CSI reporting configuration; or,

The first CSI report and the second CSI report are associated to different CSI reporting configurations.
The method of claim 1 or 2, wherein the first CSI report and the second CSI report are associated to a first CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the first CSI report.
The method of claim 1 or 2, wherein the first CSI report is associated with a first CSI reporting configuration and the second CSI report is associated with a second CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the second CSI reporting configuration that is no later than the first CSI report.
The method of claim 4, wherein the first CSI reporting configuration and the second CSI reporting configuration are associated, the association being protocol-agreed or network equipment configured through higher layer signaling.
The method of claim 4 or 5, wherein part or all of the first CSI reporting configuration associated resource configuration and the second CSI reporting configuration associated resource configuration are the same.
The method of any of claims 1-6, wherein a starting position of a first symbol carrying the first CSI report is not earlier than a first time after a last symbol carrying the second CSI report.
The method of any of claims 1-6, wherein a time interval between a first time domain location and a second time domain location is equal to or greater than a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.
The method of claim 8, wherein the first time domain position is a last symbol carrying the second CSI report.
The method according to claim 8 or 9, wherein,

the second time domain position is a first symbol of a CSI reference resource corresponding to the first CSI report; or,

the second time domain position is a first symbol of a channel measurement resource CMR or an interference measurement resource IMR, and the CMR or IMR is a most recent CMR or IMR of a CSI reference resource corresponding to the first CSI report.
The method of any of claims 1-6, wherein a time interval between a first time domain location and a second time domain location is equal to or less than a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.
The method of claim 11, wherein the first time domain location is a first symbol carrying the second CSI report.
The method according to claim 11 or 12, wherein,

the second time domain position is the last symbol of the CSI reference resource corresponding to the first CSI report; or,

the second time domain position is the last symbol of a CMR or IMR, which is the most recent CMR or IMR that is no later than the CSI reference resource to which the first CSI report corresponds.
The method of any of claims 1-3, wherein the first CSI report and second CSI report are associated to a first CSI reporting configuration, the first CSI report and the second CSI report being periodic CSI reports or semi-persistent CSI reports.
The method of claim 14, wherein for the first CSI report and the second CSI report, at least one of the following parameters is configured separately:

a first parameter for indicating a periodicity and/or offset of CSI reporting;

a second parameter, where the second parameter is used to indicate a physical uplink control channel PUCCH resource used for CSI reporting;

and a third parameter for indicating a time domain measurement limit of the channel measurement or the interference measurement.
The method of claim 15, wherein the method further comprises:

The terminal device determines whether a target CSI report belongs to the first type of CSI report or the second type of CSI report based on the first parameter.
The method of claim 14, wherein for the first CSI report and the second CSI report, only one first parameter is configured or the same first parameter is configured, the first parameter being used to indicate a periodicity and/or an offset of CSI reports.
The method of claim 17, wherein the method further comprises:

and the terminal equipment determines that a target CSI report belongs to the first type of CSI report or the second type of CSI report based on the resource configuration associated with the first CSI reporting configuration.
The method of claim 18, wherein the terminal device determining, based on the resource configuration associated with the first CSI reporting configuration, that a target CSI report belongs to the first type of CSI report or to the second type of CSI report comprises:

if the terminal equipment determines that CMR does not exist between the third time domain position and the fourth time domain position based on the resource configuration related to the first CSI reporting configuration, the terminal equipment determines that the target CSI report belongs to the first type of CSI report, otherwise, determines that the target CSI report belongs to the second type of CSI report;

Wherein the third time domain position is related to a third CSI report and the fourth time domain position is related to the target CSI report; the third CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the target CSI report.
The method of claim 19, wherein,

the third time domain position is the last symbol carrying the third CSI report; or,

the third time domain position is the last symbol of the CSI reference resource corresponding to the third CSI report; or,

the third time domain position is the last symbol of the most recent CMR of the CSI reference resource corresponding to the third CSI report.
The method according to claim 19 or 20, wherein,

the fourth time domain position is the first symbol carrying the target CSI report; or,

the fourth time domain position is the first symbol of the CSI reference resource corresponding to the target CSI report; or,

the fourth time domain position is a first symbol of a CMR or IMR, which is a most recent CMR or IMR that is no later than the CSI reference resource to which the target CSI report corresponds.
The method of any of claims 1-3, wherein the first CSI report and second CSI report are associated to a first CSI reporting configuration, the first CSI report and the second CSI report being aperiodic CSI reports.
The method of claim 22, wherein the method further comprises:

the terminal equipment receives Downlink Control Information (DCI) which is used for triggering the first CSI to report a target CSI report associated with configuration;

the terminal device determines that the target CSI report belongs to the first type CSI report or the second type CSI report.
The method of claim 23, wherein the DCI carries first indication information for indicating that the target CSI report belongs to the first type CSI report or to the second type CSI report;

the terminal device determining that the target CSI report belongs to the first type CSI report or the second type CSI report, including:

and the terminal equipment determines that the target CSI report belongs to the first type of CSI report or the second type of CSI report based on the first indication information.
The method of claim 23, wherein the terminal device determining that the target CSI report belongs to the first type CSI report or to the second type CSI report comprises:

the terminal equipment determines that the target CSI report belongs to the first type of CSI report under the condition that a first rule is met;

And the terminal equipment determines that the target CSI report belongs to the second-type CSI report under the condition that the first rule is not satisfied.
The method of claim 25, wherein the first rule is: the second CSI report is present at a third time before the first symbol carrying the target CSI report.
The method of claim 7, wherein the first time is protocol-agreed or network equipment configured through higher layer signaling.
The method of any of claims 8 to 13, wherein the second time is protocol-agreed or network device configured by higher layer signaling.
The method of claim 26, wherein the third time is protocol-agreed or network equipment configured through higher layer signaling.
A method for reporting channel state information, the method comprising:

the method comprises the steps that network equipment receives a first CSI report reported by terminal equipment, wherein the first CSI report belongs to a first type of CSI report; wherein, the first type CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report;

the CQI in the first CSI report is determined based on RI and/or PMI in a second CSI report, wherein the second CSI report belongs to a second type of CSI report; wherein, the second type CSI report includes RI and/or PMI, and the RI and/or PMI is calculated or updated.
The method of claim 30, wherein,

the first CSI report and the second CSI report are associated to the same CSI reporting configuration; or,

the first CSI report and the second CSI report are associated to different CSI reporting configurations.
The method of claim 30 or 31, wherein the first CSI report and the second CSI report are associated to a first CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the first CSI report.
The method of claim 30 or 31, wherein the first CSI report is associated with a first CSI reporting configuration and the second CSI report is associated with a second CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the second CSI reporting configuration that is no later than the first CSI report.
The method of claim 33, wherein the first CSI reporting configuration and the second CSI reporting configuration are associated, the association being protocol-agreed or network equipment configured through higher layer signaling.
The method of claim 33 or 34, wherein part or all of the first CSI reporting configuration associated resource configuration and the second CSI reporting configuration associated resource configuration are the same.
The method of any of claims 30-35, wherein a starting position of a first symbol carrying the first CSI report is not earlier than a first time after a last symbol carrying the second CSI report.
The method of any of claims 30-35, wherein a time interval between a first time domain location and a second time domain location is equal to or greater than a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.
The method of claim 37, wherein the first time domain position is a last symbol carrying the second CSI report.
The method according to claim 37 or 38, wherein,

the second time domain position is a first symbol of a CSI reference resource corresponding to the first CSI report; or,

the second time domain position is a first symbol of a CMR or IMR, which is a most recent CMR or IMR that is no later than a CSI reference resource to which the first CSI report corresponds.
The method of any of claims 30-35, wherein a time interval between a first time domain location and a second time domain location is equal to or less than a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.
The method of claim 40, wherein the first time domain location is a first symbol carrying the second CSI report.
The method of claim 40 or 41, wherein,

the second time domain position is the last symbol of the CSI reference resource corresponding to the first CSI report; or,

the second time domain position is the last symbol of a CMR or IMR, which is the most recent CMR or IMR that is no later than the CSI reference resource to which the first CSI report corresponds.
The method of any of claims 30-32, wherein the first and second CSI reports are associated to a first CSI reporting configuration, the first and second CSI reports being periodic CSI reports or semi-persistent CSI reports.
The method of claim 43, wherein for the first CSI report and the second CSI report, at least one of the following parameters is configured separately:

a first parameter for indicating a periodicity and/or offset of CSI reporting;

a second parameter for indicating PUCCH resources used for CSI reporting;

and a third parameter for indicating a time domain measurement limit of the channel measurement or the interference measurement.
The method of claim 43, wherein for the first CSI report and the second CSI report, only one first parameter is configured or the same first parameter is configured, the first parameter being used to indicate a periodicity and/or an offset of CSI reports.
The method of any of claims 30-32, wherein the first CSI report and second CSI report are associated to a first CSI reporting configuration, the first CSI report and the second CSI report being aperiodic CSI reports.
The method of claim 46, wherein the method further comprises:

and the network equipment sends DCI to the terminal equipment, wherein the DCI is used for triggering the first CSI reporting configuration-associated target CSI report.
The method of claim 47, wherein the DCI carries first indication information for indicating that the target CSI report belongs to the first type of CSI report or to the second type of CSI report.
A reporting device of channel state information, applied to a terminal device, the device comprising:

the reporting unit is used for reporting a first CSI report, wherein the first CSI report belongs to a first type of CSI report; wherein, the first type CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report;

The CQI in the first CSI report is determined based on RI and/or PMI in a second CSI report, wherein the second CSI report belongs to a second type of CSI report; wherein, the second type CSI report includes RI and/or PMI, and the RI and/or PMI is calculated or updated.
The apparatus of claim 49, wherein,

the first CSI report and the second CSI report are associated to the same CSI reporting configuration; or,

the first CSI report and the second CSI report are associated to different CSI reporting configurations.
The apparatus of claim 49 or 50, wherein the first CSI report and the second CSI report are associated to a first CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the first CSI report.
The apparatus of claim 49 or 50, wherein the first CSI report is associated with a first CSI reporting configuration and the second CSI report is associated with a second CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the second CSI reporting configuration that is no later than the first CSI report.
The apparatus of claim 52, wherein the first CSI reporting configuration and the second CSI reporting configuration are associated, the association being protocol-agreed or network equipment configured through higher layer signaling.
The apparatus of claim 52 or 53, wherein a portion or all of the first CSI reporting configuration associated resource configuration and the second CSI reporting configuration associated resource configuration are the same.
The apparatus of any of claims 49-54, wherein a starting position of a first symbol carrying the first CSI report is not earlier than a first time after a last symbol carrying the second CSI report.
The apparatus of any of claims 49-54, wherein a time interval between a first time domain location and a second time domain location is equal to or greater than a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.
The apparatus of claim 56, wherein the first time domain position is a last symbol carrying the second CSI report.
The apparatus of claim 56 or 57, wherein,

the second time domain position is a first symbol of a CSI reference resource corresponding to the first CSI report; or,

the second time domain position is a first symbol of a CMR or IMR, which is a most recent CMR or IMR that is no later than a CSI reference resource to which the first CSI report corresponds.
The apparatus of any of claims 49-54, wherein a time interval between a first time domain location and a second time domain location is equal to or less than a second time, the first time domain location being related to the second CSI report and the second time domain location being related to the first CSI report.
The apparatus of claim 59, wherein the first time domain location is a first symbol carrying the second CSI report.
The apparatus of claim 59 or 60, wherein,

the second time domain position is the last symbol of the CSI reference resource corresponding to the first CSI report; or,

the second time domain position is the last symbol of a CMR or IMR, which is the most recent CMR or IMR that is no later than the CSI reference resource to which the first CSI report corresponds.
The apparatus of any of claims 49-51, wherein the first and second CSI reports are associated to a first CSI reporting configuration, the first and second CSI reports being periodic CSI reports or semi-persistent CSI reports.
The apparatus of claim 62, wherein for the first CSI report and the second CSI report, at least one of the following parameters is configured separately:

A first parameter for indicating a periodicity and/or offset of CSI reporting;

a second parameter for indicating PUCCH resources used for CSI reporting;

and a third parameter for indicating a time domain measurement limit of the channel measurement or the interference measurement.
The apparatus of claim 63, wherein the apparatus further comprises:

and the determining unit is used for determining whether the target CSI report belongs to the first type of CSI report or the second type of CSI report based on the first parameter.
The apparatus of claim 62, wherein for the first CSI report and the second CSI report, only one first parameter is configured or the same first parameter is configured, the first parameter being used to indicate a periodicity and/or an offset of CSI reports.
The apparatus of claim 65, wherein the apparatus further comprises:

and the determining unit is used for determining whether the target CSI report belongs to the first type of CSI report or the second type of CSI report based on the resource configuration related to the first CSI reporting configuration.
The apparatus of claim 66, wherein the means for determining that a target CSI report belongs to the first type of CSI report if no CMR exists between a third time domain location and a fourth time domain location based on a resource configuration associated with the first CSI reporting configuration, and otherwise determining that a target CSI report belongs to the second type of CSI report;

Wherein the third time domain position is related to a third CSI report and the fourth time domain position is related to the target CSI report; the third CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the target CSI report.
The apparatus of claim 67, wherein,

the third time domain position is the last symbol carrying the third CSI report; or,

the third time domain position is the last symbol of the CSI reference resource corresponding to the third CSI report; or,

the third time domain position is the last symbol of the most recent CMR of the CSI reference resource corresponding to the third CSI report.
The apparatus of claim 67 or 68, wherein,

the fourth time domain position is the first symbol carrying the target CSI report; or,

the fourth time domain position is the first symbol of the CSI reference resource corresponding to the target CSI report; or,

the fourth time domain position is a first symbol of a CMR or IMR, which is a most recent CMR or IMR that is no later than the CSI reference resource to which the target CSI report corresponds.
The apparatus of any of claims 49-51, wherein the first and second CSI reports are associated to a first CSI reporting configuration, the first and second CSI reports being aperiodic CSI reports.
The apparatus of claim 70, wherein the apparatus further comprises:

a receiving unit, configured to receive DCI, where the DCI is configured to trigger the first CSI reporting configuration to associate a target CSI report;

and the determining unit is used for determining that the target CSI report belongs to the first type of CSI report or the second type of CSI report.
The apparatus of claim 71, wherein the DCI carries first indication information for indicating that the target CSI report belongs to the first type of CSI report or to the second type of CSI report;

the determining unit is configured to determine, based on first indication information in the DCI, that the target CSI report belongs to the first type CSI report or belongs to the second type CSI report.
The apparatus of claim 71, wherein the means for determining determines that the target CSI report belongs to the first type of CSI report if a first rule is satisfied; and if the first rule is not met, determining that the target CSI report belongs to the second type of CSI report.
The apparatus of claim 73, wherein the first rule is: the second CSI report is present at a third time before the first symbol carrying the target CSI report.
The apparatus of claim 55, wherein the first time is protocol-agreed or network device configured through higher layer signaling.
The apparatus of any of claims 56-61, wherein the second time is protocol-agreed or network device configured through higher layer signaling.
The apparatus of claim 74, wherein the third time is protocol-agreed or network device configured through higher layer signaling.
A reporting device of channel state information, applied to a network device, the device comprising:

the receiving unit is used for receiving a first CSI report reported by the terminal equipment, wherein the first CSI report belongs to a first type of CSI report; wherein, the first type CSI report comprises CQI and does not comprise RI and/or PMI; or, only calculating or updating CQI in the first type CSI report;

the CQI in the first CSI report is determined based on RI and/or PMI in a second CSI report, wherein the second CSI report belongs to a second type of CSI report; wherein, the second type CSI report includes RI and/or PMI, and the RI and/or PMI is calculated or updated.
The apparatus of claim 78, wherein,

The first CSI report and the second CSI report are associated to the same CSI reporting configuration; or,

the first CSI report and the second CSI report are associated to different CSI reporting configurations.
The apparatus of claim 78 or 79, wherein the first CSI report and the second CSI report are associated to a first CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the first CSI reporting configuration that is no later than the first CSI report.
The apparatus of claim 78 or 79, wherein the first CSI report is associated with a first CSI reporting configuration and the second CSI report is associated with a second CSI reporting configuration;

the second CSI report is a most recent CSI report associated with the second CSI reporting configuration that is no later than the first CSI report.
The apparatus of claim 81, wherein the first CSI reporting configuration and the second CSI reporting configuration are associated, the association being protocol-agreed or network device configured through higher layer signaling.
The apparatus of claim 81 or 82, wherein a portion or all of the first CSI reporting configuration associated resource configuration and the second CSI reporting configuration associated resource configuration are the same.
The apparatus of any of claims 78-83, wherein a starting position of a first symbol carrying the first CSI report is not earlier than a first time after a last symbol carrying the second CSI report.
The apparatus of any of claims 78-83, wherein a time interval between a first time domain location and a second time domain location is equal to or greater than a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.
The apparatus of claim 85, wherein the first time domain position is a last symbol carrying the second CSI report.
The apparatus of claim 85 or 86, wherein,

the second time domain position is a first symbol of a CSI reference resource corresponding to the first CSI report; or,

the second time domain position is a first symbol of a CMR or IMR, which is a most recent CMR or IMR that is no later than a CSI reference resource to which the first CSI report corresponds.
The apparatus of any of claims 78-83, wherein a time interval between a first time domain location and a second time domain location is less than or equal to a second time, the first time domain location being related to the second CSI report, the second time domain location being related to the first CSI report.
The apparatus of claim 88, wherein the first time domain location is a first symbol carrying the second CSI report.
The device of claim 88 or 89, wherein,

the second time domain position is the last symbol of the CSI reference resource corresponding to the first CSI report; or,

the second time domain position is the last symbol of a CMR or IMR, which is the most recent CMR or IMR that is no later than the CSI reference resource to which the first CSI report corresponds.
The apparatus of any one of claims 78-80, wherein the first and second CSI reports are associated with a first CSI reporting configuration, the first and second CSI reports being periodic CSI reports or semi-persistent CSI reports.
The apparatus of claim 91, wherein for the first CSI report and the second CSI report, at least one of the following parameters is configured separately:

a first parameter for indicating a periodicity and/or offset of CSI reporting;

a second parameter for indicating PUCCH resources used for CSI reporting;

and a third parameter for indicating a time domain measurement limit of the channel measurement or the interference measurement.
The apparatus of claim 91, wherein for the first CSI report and the second CSI report, only one first parameter is configured or the same first parameter is configured, the first parameter being used to indicate a periodicity and/or an offset of CSI reports.
The apparatus of any of claims 78-80, wherein the first CSI report and second CSI report are associated to a first CSI reporting configuration, the first CSI report and the second CSI report being aperiodic CSI reports.
The apparatus of claim 94, wherein the apparatus further comprises:

a sending unit, configured to send DCI to the terminal device, where the DCI is used to trigger the first CSI reporting configuration associated target CSI report.
The apparatus of claim 95, wherein the DCI carries first indication information indicating that the target CSI report belongs to the first type of CSI report or to the second type of CSI report.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 29.
A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 30 to 48.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 29 or the method of any one of claims 30 to 48.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 29 or the method of any one of claims 30 to 48.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 29 or the method of any one of claims 30 to 48.
A computer program which causes a computer to perform the method of any one of claims 1 to 29 or the method of any one of claims 30 to 48.