WO2016161656A1 - Method, user equipment, and base station for reporting channel state information - Google Patents

Abstract

The present invention relates to the field of communications and is capable of solving the problem of inflexibility in reporting channel state information. Disclosed are a method, user equipment, and base station for reporting channel state information. The method is such that: a user equipment (UE) receives control information transmitted by a base station, where the control information comprises a first CSI request indication, the UE acquires, on the basis of mapping correlations between CSI request indications and CSI set types, a first CSI set type corresponding to the first CSI request indication, where the CSI request indications are used for indicating the UE to report aperiodic CSI, and then the UE transmits a CSI measurement report to the base station, where the CSI measurement report comprises aperiodic CSI corresponding to the first CSI set type. Embodiments of the present invention are for use by a UE in reporting CSI to a base station.

Description

Method for reporting channel state information, user equipment and base station Technical field

The present invention relates to the field of communications, and in particular, to a method for reporting channel state information, a user equipment, and a base station.

Background technique

In the field of wireless communication, channel state information (CSI) is a channel attribute of a communication link, and may include a Precoding Matrix Indicator (PMI), a Rank Indication (RI), and a channel quality indicator ( The channel quality indicator (CQI), the user equipment (UE) can report the CSI to the base station by using the channel measurement, so that the base station can perform downlink scheduling according to the CSI reported by the UE.

Currently, CSI reporting is divided into periodic CSI reporting and aperiodic CSI reporting. For the aperiodic CSI reporting, before the 66th meeting of the 3rd Generation Partnership Project Radio Access NetWork (3GPP RAN), the UE has a maximum of 5 carrier aggregations, if the base station triggers the aperiodic of all carriers. The CSI reports that the control information sent by the base station to the UE through the downlink physical control channel (PDCCH) includes the CSI request fields of the four states of the two bits, so as to schedule which CSI sets are not reported or reported by the UE. For example, if the 2bits is 00, it indicates that the base station does not trigger the aperiodic CSI reporting, 01 indicates that only the CSI of the uplink carrier is triggered, 10 indicates that the first CSI reporting set of the scheduling high-level configuration is triggered, and 11 indicates that the high-level configuration is triggered. The second CSI reports the set, and the CSIs of which carriers are included in each set are fixed.

However, in the 3GPP RAN66 conference, the carrier aggregation research project of a large number of component carriers is passed, and it is hoped that the UE can support the maximum aggregation of 32 carriers to work at the same time, so if the CSI request field of the four states is continuously used to report the CSI, and each The CSIs of the CSI report sets are fixed. If the CSI load is reported by the UE, and each CSI set includes less CSI, it is possible that the CSI of different carriers cannot be reported to the base station, and the base station cannot Know the channel measurement of some channels The information makes the CSI report inflexible.

Summary of the invention

The embodiment of the present invention provides a method for reporting channel state information, a method for receiving channel state information, a user equipment, and a base station, which can solve the problem of inflexibility of CSI reporting.

In a first aspect, a method for reporting channel state information CSI is provided, where the method includes:

The user equipment UE receives control information sent by the base station, where the control information includes a first CSI request indication;

Determining, by the UE, the first CSI set type corresponding to the first CSI request indication according to the CSI request indication mapping relationship with the CSI set type, where the CSI request indication is used to indicate that the UE reports the aperiodic CSI;

The UE sends a CSI measurement report to the base station, where the CSI measurement report includes an aperiodic CSI corresponding to the first CSI set type.

With reference to the first aspect, in a first possible implementation manner of the first aspect, before the acquiring, by the UE, the first CSI set type, the method further includes:

Receiving, by the UE, the first configuration signaling sent by the base station, where the first configuration signaling includes the mapping relationship;

The acquiring, by the UE, the first CSI set type includes:

Obtaining, by the UE, the first CSI set type corresponding to the first CSI request indication according to the mapping relationship received from the first configuration signaling;

or,

The acquiring, by the UE, the first CSI set type includes:

And acquiring, by the UE, the first CSI set type corresponding to the first CSI request indication according to the mapping relationship pre-configured by the UE.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the CSI set type is a carrier set a CSI, where the carrier set corresponds to a carrier carrying the control information, or the carrier set is a carrier schedulable carrier carrying the control information; or

The CSI set type is a CSI of a cell set, where the cell set corresponds to a cell that carries the control information, or the cell set is a cell schedulable cell that carries the control information.

With reference to the first aspect or the first possible implementation manner of the first aspect or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, Before the first CSI collection type, it also includes:

The UE receives the second configuration signaling sent by the base station, where the second configuration signaling includes a CSI set corresponding to the first CSI set type;

Before the sending, by the UE, the CSI measurement report to the base station, the method further includes:

The UE acquires a CSI set corresponding to the first CSI set type, where the aperiodic CSI is a CSI corresponding to the CSI set;

or,

Before the sending, by the UE, the CSI measurement report to the base station, the method further includes:

And acquiring, by the UE, a CSI set corresponding to the first CSI set type that is pre-configured by the UE, where the aperiodic CSI is a CSI corresponding to the CSI set.

In combination with the first aspect to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, before the UE acquires the first CSI collection type, the method further includes:

Receiving, by the UE, third configuration signaling that is sent by the base station, where the third configuration signaling includes a type indicated by the CSI request;

Determining, by the UE, the CSI request indication included in the control information according to the type indicated by the CSI request;

or,

Before the UE acquires the first CSI set type, the method further includes:

Determining, by the UE, according to a type indicated by the CSI request pre-configured by the UE The CSI request indication included in the control information.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the type of the CSI request indication is at least one of the following:

The CSI request indication is represented by at least 3 bits;

The CSI request indication is represented in a different format of the control information;

The CSI request indication is represented by information indicating an uplink scheduling or information of a downlink scheduling;

The CSI request indication is represented by a modulation and coding policy MCS carried by the control information;

The CSI request indication is represented by a carrier identifier used by the base station to send a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH;

The CSI request indication is represented by an identifier of a PDCCH group after the physical downlink control channel PDCCH is grouped, or an identifier of an ePDCCH group after the enhanced physical downlink control channel ePDCCH is grouped;

The CSI request indication is an identifier representation of a group of a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH schedulable carrier;

The CSI request indication is represented by an identifier of a frequency band to which the physical downlink control channel PDCCH belongs;

The CSI request indication is to schedule an uplink transmission or a downlink received resource, or a time domain location, or a frequency domain location representation;

The CSI request indication is indicated by the indication information of the control information in a common search space or a UE search space.

In conjunction with the third possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the CSI set is at least one of the following:

CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or CSI of the same cell group after the cells are grouped according to the cell identifier;

Different cells are classified according to different physical uplink control information PUCCH The CSI of the downlink carrier of the cell belonging to the same PUCCH group after the group;

CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands;

CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier;

After configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes;

After configuring different subframe sets for each carrier, CSIs of the same carrier group after the carriers are grouped according to different subframe sets;

The wideband channel quality indicates the CSI to which the CQI belongs or the CSI to which the subband CQI belongs;

CSI of a carrier belonging to the same physical downlink control channel PDCCH or enhanced downlink physical control channel ePDCCH scheduling;

CSI attributed to the same antenna port on different carriers.

In a second aspect, a method for receiving channel state information CSI is provided, including:

The base station sends control information to the user equipment UE, where the control information includes a first CSI request indication, where the first CSI request indication is used to indicate that the UE reports an aperiodic CSI;

The base station receives a CSI measurement report sent by the UE, where the CSI measurement report includes an aperiodic CSI corresponding to the first CSI request indication.

With reference to the second aspect, in a first possible implementation manner of the second aspect, before the sending, by the base station, the control information to the UE, the method further includes:

The base station sends first configuration signaling to the UE, where the first configuration signaling includes the mapping relationship.

With the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, before the sending, by the base station, the control information to the UE, the method further includes:

The base station sends a second configuration signaling to the UE, where the second configuration signaling includes a CSI set corresponding to the first CSI set type.

With reference to the second aspect or the first possible implementation manner of the second aspect or the second possible implementation manner, in a third possible implementation manner of the second aspect, the base station sends the Before controlling the information, the method further includes:

The base station sends third configuration signaling to the UE, where the third configuration signaling includes a type indicated by the CSI request.

In combination with the second aspect or the first possible implementation of the second aspect to any one of the third possible implementations of the second aspect, in a fourth possible implementation of the second aspect, The type of the CSI request indication is at least one of the following:

The CSI request indication is represented by at least 3 bits;

The CSI request indication is represented in a different format of the control information;

The CSI request indication is represented by information indicating an uplink scheduling or information of a downlink scheduling;

The CSI request indication is represented by a modulation and coding policy MCS carried by the control information;

The CSI request indication is represented by a carrier identifier used by the base station to send a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH;

The CSI request indication is represented by an identifier of a PDCCH group after the physical downlink control channel PDCCH is grouped, or an identifier of an ePDCCH group after the enhanced physical downlink control channel ePDCCH is grouped;

The CSI request indication is an identifier representation of a group of a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH schedulable carrier;

The CSI request indication is represented by an identifier of a frequency band to which the physical downlink control channel PDCCH belongs;

The CSI request indication is to schedule an uplink transmission or a downlink received resource, or a time domain location, or a frequency domain location representation;

The CSI request indication is indicated by the indication information of the control information in a common search space or a UE search space.

With reference to the second possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the CSI set is at least one of the following:

CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or CSI of the same cell group after the cells are grouped according to the cell identifier;

CSIs of downlink carriers belonging to cells of the same PUCCH group after different cells are grouped according to different physical uplink control information PUCCH;

CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands;

CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier;

After configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes;

After configuring different subframe sets for each carrier, CSIs of the same carrier group after the carriers are grouped according to different subframe sets;

The wideband channel quality indicates the CSI to which the CQI belongs or the CSI to which the subband CQI belongs;

CSI of a carrier belonging to the same physical downlink control channel PDCCH or enhanced downlink physical control channel ePDCCH scheduling;

CSI attributed to the same antenna port on different carriers.

In a third aspect, a user equipment is provided, including:

a receiving unit, configured to receive control information sent by the base station, where the control information includes a first CSI request indication;

An acquiring unit, configured to acquire, according to the mapping relationship between the CSI request and the CSI set type, the first CSI set type corresponding to the first CSI request indication, where the CSI request indication is used to indicate The UE reports the aperiodic CSI;

a sending unit, configured to send a CSI measurement report to the base station after the acquiring unit acquires the aperiodic CSI corresponding to the first CSI set type, where the CSI measurement report includes: corresponding to the first CSI set type Acyclic CSI.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the receiving unit is further configured to receive, by the base station, first configuration signaling, where the first configuration signaling includes Mapping relationship;

The acquiring unit is configured to: acquire, according to the mapping relationship received from the first configuration signaling, a first CSI set type corresponding to the first CSI request indication from the storage unit;

or,

And the acquiring unit is configured to: acquire the first CSI set type corresponding to the first CSI request indication according to the mapping relationship pre-configured by the UE by the storage unit.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the CSI set type is a CSI of a carrier set, where the carrier set corresponds to a bearer The carrier of the control information, or the carrier set is a carrier schedulable carrier carrying the control information; or

The CSI set type is a CSI of a cell set, where the cell set corresponds to a cell that carries the control information, or the cell set is a cell schedulable cell that carries the control information.

In combination with the third aspect or the first possible implementation manner of the third aspect or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect,

The receiving unit is further configured to receive the second configuration signaling sent by the base station, where the second configuration signaling includes a CSI set corresponding to the first CSI set type;

The obtaining unit is further configured to:

Acquiring, by the storage unit, a CSI set corresponding to the first CSI set type, where the aperiodic CSI is a CSI corresponding to the CSI set;

or,

The obtaining unit is further configured to:

Acquiring, by the storage unit, the first CSI set type that is pre-configured by the UE A CSI set, where the aperiodic CSI is a CSI corresponding to the CSI set.

With reference to the third aspect or the first possible implementation manner of the third aspect to the third possible implementation manner, in a fourth possible implementation manner of the third aspect, the receiving unit is further configured to receive the a third configuration signaling sent by the base station, where the third configuration signaling includes a type indicated by the CSI request;

The obtaining unit is further configured to: determine, according to the type of the CSI request indication, the CSI request indication included in the control information;

or,

The acquiring unit is further configured to determine, according to the type of the CSI request indication that is pre-configured by the UE, the CSI request indication included in the control information.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the type of the CSI request indication is at least one of the following:

The CSI request indication is represented by at least 3 bits;

The CSI request indication is represented in a different format of the control information;

The CSI request indication is represented by information indicating an uplink scheduling or information of a downlink scheduling;

The CSI request indication is represented by a modulation and coding policy MCS carried by the control information;

The CSI request indication is represented by a carrier identifier used by the base station to send a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH;

The CSI request indication is represented by an identifier of a PDCCH group after the physical downlink control channel PDCCH is grouped, or an identifier of an ePDCCH group after the enhanced physical downlink control channel ePDCCH is grouped;

The CSI request indication is an identifier representation of a group of a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH schedulable carrier;

The CSI request indication is represented by an identifier of a frequency band to which the physical downlink control channel PDCCH belongs;

The CSI request indication is to schedule an uplink transmission or a downlink received resource, or a time domain location, or a frequency domain location representation;

The CSI request indication is indicated by the indication information of the control information in a common search space or a UE search space.

In a third possible implementation manner of the third aspect, the CSI set is at least one of the following:

CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or CSI of the same cell group after the cells are grouped according to the cell identifier;

CSIs of downlink carriers belonging to cells of the same PUCCH group after different cells are grouped according to different physical uplink control information PUCCH;

CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands;

CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier;

After configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes;

After configuring different subframe sets for each carrier, CSIs of the same carrier group after the carriers are grouped according to different subframe sets;

The wideband channel quality indicates the CSI to which the CQI belongs or the CSI to which the subband CQI belongs;

CSI of a carrier belonging to the same physical downlink control channel PDCCH or enhanced downlink physical control channel ePDCCH scheduling;

CSI attributed to the same antenna port on different carriers.

In a fourth aspect, a base station is provided, including:

a processing unit, configured to send, by the sending unit, control information to the user equipment, where the control information includes a first CSI request indication, where the first CSI request indication is used to indicate that the UE reports an aperiodic CSI;

And a receiving unit, configured to receive a CSI measurement report sent by the UE, where the CSI measurement report includes an aperiodic CSI corresponding to the first CSI request indication.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the sending unit is further configured to send, to the UE, first configuration signaling, where the first configuration signaling includes the mapping relationship .

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the sending unit is further configured to send the second configuration signaling to the UE, The second configuration signaling includes a CSI set corresponding to the first CSI set type.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect or the second possible implementation manner, in a third possible implementation manner of the fourth aspect, the sending unit is further configured to: The UE sends a third configuration signaling, where the third configuration signaling includes a type indicated by the CSI request.

In combination with the fourth aspect or any of the third possible implementation manners of the first aspect of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the CSI request indication The type is at least one of the following:

The CSI request indication is represented by at least 3 bits;

The CSI request indication is represented in a different format of the control information;

The CSI request indication is represented by information indicating an uplink scheduling or information of a downlink scheduling;

The CSI request indication is represented by a modulation and coding policy MCS carried by the control information;

The CSI request indication is represented by a carrier identifier used by the base station to send a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH;

The CSI request indication is represented by an identifier of a PDCCH group after the physical downlink control channel PDCCH is grouped, or an identifier of an ePDCCH group after the enhanced physical downlink control channel ePDCCH is grouped;

The CSI request indication is an identifier representation of a group of a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH schedulable carrier;

The CSI request indication is represented by an identifier of a frequency band to which the physical downlink control channel PDCCH belongs;

The CSI request indication is to schedule an uplink transmission or a downlink received resource, or a time domain location, or a frequency domain location representation;

The CSI request indication is indicated by the indication information of the control information in a common search space or a UE search space.

With reference to the second possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the CSI set is at least one of the following:

CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or CSI of the same cell group after the cells are grouped according to the cell identifier;

CSIs of downlink carriers belonging to cells of the same PUCCH group after different cells are grouped according to different physical uplink control information PUCCH;

CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands;

CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier;

After configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes;

After configuring different subframe sets for each carrier, CSIs of the same carrier group after the carriers are grouped according to different subframe sets;

The wideband channel quality indicates the CSI to which the CQI belongs or the CSI to which the subband CQI belongs;

CSI of a carrier belonging to the same physical downlink control channel PDCCH or enhanced downlink physical control channel ePDCCH scheduling;

CSI attributed to the same antenna port on different carriers.

In the embodiment of the present invention, the user equipment UE receives the control information sent by the base station, where the control information includes the first CSI request indication, and the UE acquires the first CSI corresponding to the first CSI request indication according to the mapping relationship between the CSI request indication and the CSI set type. a set type, where the CSI request indication is used to indicate that the UE reports the aperiodic CSI, and then the UE sends the base station to the base station. Sending a CSI measurement report, the CSI measurement report includes aperiodic CSI corresponding to the first CSI set type, so that the UE can flexibly report different types of CSI to the base station according to the mapping relationship between the CSI request indication and the CSI set type sent by the base station. .

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a schematic flowchart of a method for reporting channel state information according to an embodiment of the present disclosure;

2 is a schematic flowchart of a method for receiving channel state information according to another embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a user equipment according to another embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a base station according to another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiments of the present invention can be applied to a Long Term Evolution (LTE) system, or a Universal Mobile Telecommunication System Territorial Radio Access Network (UTRAN) system, and can also be applied to a wireless broadband (WIreless). -Fidelity, WIFI) system, etc., the invention is not limited.

In the embodiment of the present invention, the user equipment (User Equipment, UE) may be any one of the following, and the UE may be static or mobile. UE can Including but not limited to: Station, Mobile Station, Subscriber Unit, Personal Computer, Laptop Computer, Tablet Computer, Netbook ), Terminal, Cellular Phone, Handheld, Cordless Phone, Personal Digital Assistant (PDA), Data Card, Universal Serial Bus (Universal Serial Bus, USB) plug-in device, mobile WiFi hotspot device (MiFi Devices), smart watch, smart glasses, wireless modem (English: Modem), wireless router, wireless local loop (Wireless Local Loop, abbreviation: The WLL) station or the like; the base station (NodeB) may be a base station in an LTE network, or a base station in a UTRAN network, or the like.

The following embodiments of the present invention can be applied to a scenario in which a large number of carriers are aggregated. For example, a UE can aggregate up to 32 carriers to work simultaneously.

An embodiment of the present invention provides a method for reporting channel state information, as shown in FIG. 1 , including:

101. The UE receives control information sent by the base station, where the control information includes a first CSI request indication.

The control information may be downlink control information (Downlink Control Infornation, DCI) sent by the base station to the UE, where the CSI request indication may be used to schedule the UE to report the aperiodic CSI or not to report the aperiodic CSI, so that the base station reports the UE according to the UE. The CSI knows the instantaneous state of the channel, adapts the communication system to the current channel conditions, and provides guarantee for high reliability and high rate communication in the multi-antenna system.

The CSI can include PMI, RI, CQI, etc. Therefore, for CQI, it can also be considered as periodic CQI reporting and aperiodic CQI reporting. The reporting timing of the aperiodic CQI is complicated. It may be triggered when a certain cell needs to send downlink data. It may also be that the subframe where the UE needs to send data is exactly the same as the CQI reporting time. The CQI at this time is on the physical uplink shared channel (PUSCH) channel bearer. In order to obtain a more detailed CQI report, the base station triggers the aperiodic reporting mode and the like.

It should be noted that the CSI request indication in the present invention is not limited to being represented by 2 bits. For example, when 32 carrier aggregation is used, it may be represented by a format different from the downlink control information DCI, or by using the MCS carried in the DCI. Different indications and the like, the invention is not limited.

102. The UE acquires a first CSI set type corresponding to the first CSI request indication according to a CSI request indication mapping relationship with a CSI set type, where the CSI request indication is used to indicate that the UE reports an aperiodic CSI. .

The CSI set type in the embodiment of the present invention may be understood as the indication information for indicating the CSI set, for example, the CSI request field is “001”, and the CSI set type corresponding to “001” is “triggered high level. The first CSI set of the configuration is reported." The CSI set represents a set of objects used for reporting CSI; the object may be, for example, at least one of a carrier, a CSI process, and a set of subframes. For example, the first CSI set here may be a CSI process and a set of subframes.

When the CSI request indication is used to schedule the UE to report the aperiodic CSI, the UE may obtain the corresponding CSI according to the mapping relationship, because the mapping relationship between the CSI request indication and the CSI set type is saved in the UE. For example, the mapping relationship may be Different CSI requests indicate mappings between different CQI set types. Different CSI collection types correspond to different CSI collections.

The mapping relationship may be pre-configured in the UE and the base station in a pre-agreed manner, or the base station may send a configuration signaling notification to the UE to save the CSI request, and also for the CSI request indication and the CSI set, the CSI request. The type of the indication and the CSI set may also be pre-configured in the UE and the base station in a pre-agreed manner, or the base station may send a configuration signaling notification to the UE for saving to the UE.

It should be noted that the CSI set in the present invention may be diverse. For example, the carriers may be grouped according to different bands, so that the CSI carried on the carrier belongs to different carrier groups, and may also be grouped according to carriers. For example, the 32 carriers may be grouped into a group according to the carrier identifier, and the last 16 carriers may be grouped into one group, or may be grouped in other manners, which is not limited by the present invention.

103. The sending, to the base station, a CSI measurement report, where the CSI measurement report packet is An aperiodic CSI corresponding to the first CSI set type is included.

For example, after the UE acquires the aperiodic CQI corresponding to the CSI request indication, the CQI measurement report carrying the aperiodic CQI is sent to the base station, so that the base station learns the instantaneous state of the channel according to the CQI measurement report.

The above steps 101 to 103 will be specifically described below.

Further, if the mapping relationship is that the base station is configured by the UE for the signaling, before the acquiring the first CSI set type by the UE, the method further includes:

Receiving, by the UE, the first configuration signaling sent by the base station, where the first configuration signaling includes the mapping relationship;

Further, the acquiring, by the UE, the first CSI set type includes:

And acquiring, by the UE, the first CSI set type corresponding to the first CSI request indication according to the mapping relationship received from the first configuration signaling.

Of course, if the UE adopts the pre-agreed manner, the UE acquiring the first CSI set type includes:

And acquiring, by the UE, the first CSI set type corresponding to the first CSI request indication according to the mapping relationship pre-configured by the UE.

It should be noted that the CSI set type may be a CSI of a carrier set, where the carrier set corresponds to a carrier that carries the control information, or the carrier set is a carrier schedulable carrier that carries the control information. ;or

The CSI set type may be a CSI of a cell set, where the cell set corresponds to a cell that carries the control information, or the cell set is a cell schedulable cell that carries the control information.

When the CSI set is configured by the base station to the UE by using the signaling, before the acquiring the first CSI set type by the UE, the method further includes:

The UE receives the second configuration signaling sent by the base station, where the second configuration signaling includes a CSI set corresponding to the first CSI set type;

In this way, before the UE sends the CSI measurement report to the base station, include:

The UE acquires a CSI set corresponding to the first CSI set type, where the aperiodic CSI is a CSI corresponding to the CSI set.

The CSI set type may be, for example, a first CSI set that triggers a high-level configuration, a second CSI set that triggers a high-level configuration, and the like, and then acquires a CSI set according to the CSI corresponding to the first CSI set.

Before the CSI measurement report is sent by the UE to the base station, the method further includes:

And acquiring, by the UE, a CSI set corresponding to the first CSI set type that is pre-configured by the UE, where the aperiodic CSI is a CSI corresponding to the CSI set.

In addition, when the type of the CSI request indication is that the base station sends the configuration signaling acquisition to the UE, before the acquiring the first CSI collection type, the UE further includes:

Receiving, by the UE, third configuration signaling that is sent by the base station, where the third configuration signaling includes a type indicated by the CSI request;

Determining, by the UE, the CSI request indication included in the control information according to a type indicated by the CSI request.

And before the acquiring, by the UE, the first CSI set type, the method further includes:

Determining, by the UE, the CSI request indication included in the control information according to a type indicated by the CSI request pre-configured by the UE.

Further, the grouping of the CSI sets in the foregoing steps may adopt different grouping rules, so that different CSI set types correspond to different CSI sets, for example, the CSI set type may be at least one of the following:

A1: The CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or the CSI of the same cell group grouped according to the cell identifier. For example, for 32-carrier aggregation, the first 16 carriers identified as 1 to 16 in the 32 carriers can be grouped together, and the last 16 carriers identified as 17 to 32 can be grouped together, or 32 for aggregation. On carrier The cell may be grouped into a group of the first 16 cells identified as 1 to 16 of the 32 carriers, and the last 16 cells identified as 17 to 32 are grouped into one group;

B1: CSI of a downlink carrier belonging to a cell of the same PUCCH group after different cells are grouped according to different Physical Uplink Control Channels (PUCCHs). For example, the carrier aggregation (CA) in the current R13 version can be configured with multiple PUCCHs, that is, control information of different carriers, such as an acknowledgment message, and a CSI message can be fed back to the base station on different PUCCHs. The carriers belonging to the same PUCCH may be classified into one PUCCH group according to different cells, that is, the CSIs of carriers of the same PUCCH group are classified into one set;

C1: CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands. For example, according to the electromagnetic wave spectrum division, the wavelength band can be divided into long wave, short wave and ultra short wave, etc., so that the carriers belonging to different bands are classified into one set, and the CSI on the carrier is divided into different sets; short wave and ultra short wave can also be used. Classified as a group;

D1: CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier, such that the CSI transmitted on the carrier of the licensed spectrum is classified into one CSI set, and the CSI transmitted on the carrier of the unlicensed spectrum is classified into one CSI set;

E1: after configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes, for example, for the UE of the Transmission Mode (TM) 10, Multiple CSI processes are configured on the carrier, and then carriers are grouped according to different processes, so that the CSI of the same carrier group can be classified into one CSI set;

F1: CSI of the same carrier group after the carrier is grouped according to different subframe sets after different subframe sets are configured for each carrier. For example, a different subframe set may be configured for each carrier, and the subframe set may be grouped according to the interference degree of the subframe, and the CSIs on the carriers belonging to the same subframe set may be classified into one CSI set;

G1: The CSI to which the wideband CQI belongs or the CSI to which the subband CQI belongs, that is, the CSI is grouped according to whether the CQI is reported as a wideband CQI or a subband CQI.

H1: CSI of a carrier that is assigned to the same downlink physical control channel (PDCCH) or enhanced physical downlink control channel (ePDCCH).

I1: CSI attributed to the same antenna port on different carriers. For example, the CSIs on antenna port 1 on different carriers are classified into the same CSI set.

Of course, the foregoing multiple CSI grouping rules may be grouped by any two or more combinations, and the present invention is not limited thereto.

The configuration indicated by the CSI request in the foregoing step may also adopt different indication rules to indicate different CSI sets, for example, any one of the following:

A2: For a large number of carrier aggregations, for example, 32 carrier aggregation, at least 3 bits may be used to implement mapping of more CSI request indications to different CSI sets, so that different 3 bit information may be used to indicate different CSI request indications. , for example, 011 is used to indicate the first CSI set, etc.;

B2: The CSI request indication may be a control information, and may be a different format of the downlink control information DCI. For example, different formats such as 1D, 2A, and 1C in the DCI format may be mapped to different types of CSI sets. That is, different DCI formats are used to indicate different CSI request indications;

C2: The CSI request indication may be used to represent the uplink scheduling information or the downlink scheduling information representation to distinguish different CSI sets. For example, 00 indicates that the uplink scheduling corresponds to one CSI set, and 01 indicates that the downlink scheduling corresponds to one CSI set;

D2: The CSI request indication may be represented by a Modulation and Coding Scheme (MCS) carried by the DCI, for example, different modulation modes are used to indicate different CSI sets, or different coding modes are used to indicate different CSI sets;

E2: The CSI request indication may be a carrier identifier representation of a carrier used by the base station to transmit a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (ePDCCH). For example, in the 32-carrier aggregation, carrier 1, carrier 2, and carrier 3 are used in a manner of pre-arbitration or base station configuration between the base station and the UE. Sending a PDCCH or an ePDCCH respectively mapping different CSI sets, so that the UE may determine different CSI sets according to carrier information of the received PDCCH or ePDCCH;

F2: The CSI request indication may be represented by an identifier of a PDCCH or an ePDCCH group after the PDCCH or the ePDCCH is grouped, specifically after the PDCCH or the ePDCCH is grouped, and then the identifier of the different PDCCH group or the identifier of the ePDCCH group is used to indicate a different CSI request indication. And then map to different CSI collections;

G2: The CSI request indicates that the PDCCH or the ePDCCH schedulable carrier may be represented by a group, and different PDCCHs or ePDCCHs may schedule different carriers, so that different CSIs may be represented by group representations of scheduling carriers belonging to the same PDCCH or ePDCCH. Request indications, which in turn map to different CSI collections;

H2: The CSI request indicates that the identifier of the band to which the PDCCH belongs may be used to indicate different CSI request indications, and the CSIs on the carriers belonging to different bands may be classified into different CSI sets and CSI request indication mappings.

I2: The CSI request indication may be represented by the number of resources scheduled for uplink transmission or downlink transmission, or the time domain location, or the frequency domain location, to indicate different CSI request indications, and then mapped to different CSI sets.

J2: The CSI request indication may be represented by the DCI in the common search space or the UE search space to imply different CSI request indications, thereby mapping to different CSI sets. For example, if the transmission request of the CSI received by the UE in the common search space represents the CQI of all carriers mapped.

Of course, the representation rules of the foregoing multiple CSI request indications may also be implemented by using any two or more combination of rules.

After the CSI request indication and the CSI set of different CSI set types are configured for the UE in a pre-configured manner or the base station performs network configuration on the UE, the pre-configured mode or the base station may perform network configuration on the UE. The manner of mapping the CSI request indication to the CSI set type is configured for the UE. The mapping relationship may be a one-to-one mapping between the CSI request indication and the CSI collection type, or may be a one-to-many mapping, a many-to-one mapping, or a many-to-many mapping.

Then, the base station can use different CSI request indications to trigger aperiodic CSI reporting, and the UE feeds back different CSIs to the base station according to the mapping relationship.

For example, in combination with the foregoing rule a1 and the rule e2, when the base station CSI requests to indicate the carrier identifier representation of the carrier used by the base station to transmit the PDCCH, the CSI set type is the first CSI set that triggers the high layer configuration, the first The CSI corresponding to the CSI set is the CSI of the same carrier group after the carrier is grouped according to the carrier identifier, so that the base station sends the PDCCH on different carriers to indicate different CSIs for triggering different carriers and different carriers.

For example, when the UE can support the 32-carrier aggregation, the base station sends a PDCCH on the carrier 1 to trigger the UE to report the aperiodic CSI. The indication that the UE needs to report the first CSI set, that is, the CSI set type is the first CSI set, the first The CSI of the CSI set is the CSI of all the 32 carriers, and the PDCCH is sent on the carrier 2 to trigger the UE to report the aperiodic CSI. The indication indicates that the UE needs to report the second CSI set, that is, the CSI set type is the second CSI set. The second CSI set is the CSI of the first 16 carriers identified as 1 to 16, and the PDCCH is sent on the carrier 3 to trigger the UE to report the aperiodic CSI. The indication indicates that the UE needs to report the third CSI set, that is, the CSI set type is A third CSI set, the third CSI set is a CSI identified as the last 16 carriers of 17-32. For this example, the mapping relationship between the CSI request indication and the CSI collection type can be as shown in Table 1.

Table 1

The indication manners of the '00' and the '01' may be the same as the prior art, respectively, indicating that the CSI that does not trigger the UE to report the aperiodic CSI and trigger the UE to report the uplink carrier, ‘1’, '2', '3' indicate the identity of the carrier, and different carrier identifiers are mapped to different CSI sets.

For example, in combination with the foregoing rule b1 and the rule a2, for a large number of carrier aggregations, for example, 32 carrier aggregation, when the CSI set corresponding to the CSI set type is a PUCCH grouping different physical cells according to different physical uplink control information. After the CSI of the downlink carrier of the cell belonging to the same PUCC group, and the CSI request indication that at least 3 bits are used to implement mapping of more CSI request fields to different CSI set types, specifically by adding The number of bits of the CSI request field in the DCI, for example, is increased from 2 bits to 3 bits, and is used to indicate that the CSI in the different PDCCH groups is triggered. For example, 011 indicates that the base station triggers the UE to report the first CSI set report, the first CSI set corresponds to the carrier in the first PUCCH group, and 100 indicates that the base station triggers the UE to report the second CSI set report, where the second CSI set corresponds. The CSI of the carrier in the second PUCCH group, 101 indicates that the base station triggers the UE to report the third CSI set report, and the third CSI set corresponds to the CSI report of the carrier in the third PUCCH group.

For example, the combination of the rule c1 and the rule h2, when the CSI set corresponding to the CSI set type is the CSI of the carrier that belongs to the same band or the same band after the carriers are grouped according to different bands, the CSI request indicates that the PDCCH belongs to When the identifier of the band indicates a different CSI request indication, if the CSI request indicates an identifier of a certain band, the base station triggers the CSI reporting of the carrier that the UE reports the band.

The embodiment of the present invention provides a method for reporting channel state information, which can be used for a large number of carrier aggregations, and the UE receives control information sent by the base station, where the control information includes a first CSI request indication, and the first CSI request indicates The representation manner is different from the prior art, and may include three bits or other indication information, and the UE acquires a first CSI corresponding to the first CSI request indication according to the mapping relationship between the CSI request and the CSI set type. a set type, where the CSI request indication is used to indicate that the UE reports an aperiodic CSI, where the CSI set type corresponding to the CSI set may be multiple, for example, a CSI set after different carriers, different bands, and different PUCCHs. And then the UE sends a CSI measurement report to the base station, where the CSI measurement report includes a CSI set corresponding to the CSI request indication, and thus, with the prior art The four CSI request indications indicated by the two bits are compared with the four CQI set mappings. The technical solution of the present invention adopts multiple CSI request indication modes and multiple types of CSI sets, which can increase the number of CSI request indications and different types of CSI request indications. The number of CSI sets, which makes CSI reporting more flexible for a large number of carrier aggregations.

For example, for the 32-carrier aggregation, the first two indications respectively indicate that the UE does not trigger the CQI for reporting the aperiodic CQI and reporting the uplink carrier, and the latter two indications are respectively compared with the first one. The CQI set mapping and the second CQI set mapping, the first CQI set and the second CQI set may include too many CQIs, but this may cause the uplink PUSCH bearer load of the UE to be too heavy, and the uplink PUSCH coverage is reduced, but if this is adopted, When the three bits in the technical solution of the present invention indicate more CQI sets, the CQIs may be reported in multiple sets, and the base station may trigger the UE to report different CSI sets according to the requirements, so that the uplink PUSCH bearers are more balanced; The technique adopts less CQI for each CQI set, which makes the base station unable to know the instantaneous state of part of the channel and cannot obtain a more preferable channel state. However, the present invention adopts multiple types of CQI, and the base station learns more according to the need. More channel state information, in order to make the communication system better adapt to the current channel conditions, and provide high reliability and high rate communication in multi-antenna systems.

Correspondingly, for the base station side, the embodiment of the present invention further provides a method for receiving channel state information. For the same content, refer to the description in the foregoing embodiment, and details are not described in this embodiment. As shown in Figure 2, the method includes:

201. The base station sends control information to the user equipment UE, where the control information includes a first CSI request indication, where the first CSI request indication is used to indicate that the UE reports the aperiodic CSI.

202. The base station receives a CSI measurement report sent by the UE, where the CSI measurement report includes an aperiodic CSI corresponding to the first CSI request indication.

Optionally, before the sending, by the base station, the control information to the UE, the method may further include:

The base station sends first configuration signaling to the UE, where the first configuration signaling includes the mapping relationship.

Optionally, before the sending, by the base station, the control information to the UE, the method may further include:

The base station sends a second configuration signaling to the UE, where the second configuration signaling includes a CSI set corresponding to the first CSI set type.

Optionally, before the sending, by the base station, the control information to the UE, the method may further include: sending, by the base station, third configuration signaling to the UE, where the third configuration signaling includes the CSI request indication type.

Certainly, the foregoing mapping relationship, the CSI set corresponding to the CSI set type, and the type indicated by the CSI request may also be configured in the UE and the base station in an agreed-upon manner.

The type of the CSI request indication in this embodiment can be referred to the description in the above embodiment.

The CSI set type in this embodiment can also refer to the description in the above embodiment.

An embodiment of the present invention provides a method for receiving channel state information, where a base station sends control information to a user equipment UE, where the control information includes a first CSI request indication, where the first CSI request indication is used to indicate that the UE reports an aperiodic The CSI, and the base station receives the CSI measurement report sent by the UE, where the CSI measurement report includes the aperiodic CSI corresponding to the first CSI request indication, and may enable the UE to flexibly indicate the mapping relationship with the CSI set type according to the CSI request indication. The base station reports the CSI set.

The embodiment of the present invention further provides a user equipment 03, which is capable of performing the steps of the user equipment in the foregoing embodiments. For the same content, reference may be made to the description in the foregoing embodiments. As shown in FIG. 3, the user equipment 03 includes:

The receiving unit 031 is configured to receive control information sent by the base station, where the control information includes a first CSI request indication.

The obtaining unit 032 is configured to acquire, according to the mapping relationship between the CSI request and the CSI set type, the first CSI set type corresponding to the first CSI request indication, where the CSI request indication is used for Indicating on the UE Reporting aperiodic CSI;

The sending unit 033 is configured to send a CSI measurement report to the base station after the acquiring unit 032 acquires the aperiodic CSI corresponding to the first CSI set type, where the CSI measurement report includes the first CSI set The type corresponds to the aperiodic CSI.

Optionally, the receiving unit 031 is further configured to receive the first configuration signaling sent by the base station, where the first configuration signaling includes the mapping relationship;

The obtaining unit 032 may be specifically configured to: acquire, according to the mapping relationship received from the first configuration signaling, a first CSI set type corresponding to the first CSI request indication from the storage unit 034;

or,

The obtaining unit 032 may be specifically configured to: acquire the first CSI set type corresponding to the first CSI request indication according to the mapping relationship pre-configured by the UE that is stored by the storage unit 034.

Optionally, the CSI set type is a CSI of a carrier set, where the carrier set corresponds to a carrier that carries the control information, or the carrier set is a carrier schedulable carrier that carries the control information; or

The CSI set type is a CSI of a cell set, where the cell set corresponds to a cell that carries the control information, or the cell set is a cell schedulable cell that carries the control information.

Optionally, the receiving unit 031 is further configured to receive the second configuration signaling sent by the base station, where the second configuration signaling includes a CSI set corresponding to the first CSI set type.

The obtaining unit 032 can also be used to:

Obtaining, from the storage unit 034, a CSI set corresponding to the first CSI set type, where the aperiodic CSI is a CSI corresponding to the CSI set;

or,

The obtaining unit 032 can also be used to:

And acquiring, by the storage unit 034, a CSI set corresponding to the first CSI set type that is pre-configured by the UE, where the aperiodic CSI is a CSI corresponding to the CSI set.

Optionally, the receiving unit 031 is further configured to receive the third configuration signaling sent by the base station, where the third configuration signaling includes a type indicated by the CSI request;

The obtaining unit 032 is further configured to: determine, according to the type of the CSI request indication, the CSI request indication included in the control information;

or,

The obtaining unit 032 may be further configured to determine, according to the type of the CSI request indication that is pre-configured by the UE, the CSI request indication included in the control information.

The type of the CSI request indication in this embodiment can be referred to the description in the above embodiment.

The CSI set type in this embodiment can also refer to the description in the above embodiment.

The embodiment of the present invention provides a user equipment, where the user equipment UE receives the control information sent by the base station, where the control information includes a first CSI request indication, and the UE obtains the first relationship according to the mapping relationship between the CSI request indication and the CSI set type. The CSI request indicates a corresponding first CSI set type, where the CSI request indication is used to indicate that the UE reports an aperiodic CSI, and then the UE sends a CSI measurement report to the base station, where the CSI measurement report includes the first CSI The aperiodic CSI corresponding to the ensemble type, so that the UE can flexibly report different types of CSI to the base station according to the mapping relationship between the CSI request indication and the CSI set type sent by the base station.

It should be noted that the receiving unit 031 in the foregoing embodiment may be implemented by a receiver or by a transceiver. The obtaining unit 032 in the above embodiment may be implemented by a processor, or may be implemented by other circuit units having processing functions. The transmitting unit 033 in the above embodiment may be implemented by a transmitter or by a transceiver. The memory unit in the above embodiment may be a memory.

The embodiment of the present invention further provides a base station 04, which is capable of executing the foregoing The steps performed by the base station in the foregoing embodiments, wherein the same content can be referred to the description in the foregoing embodiment, and details are not described herein again. As shown in FIG. 4, the base station 04 includes:

The processing unit 043 is configured to control the sending unit 041 to send the control information to the user equipment UE, where the control information includes a first CSI request indication, where the first CSI request indication is used to indicate that the UE reports the aperiodic CSI;

The receiving unit 042 is configured to receive a CSI measurement report sent by the UE, where the CSI measurement report includes an aperiodic CSI corresponding to the first CSI request indication.

The processing unit 043 is coupled to the receiving unit 042 and the transmitting unit 041.

Optionally, the sending unit 041 is further configured to send, to the UE, first configuration signaling, where the first configuration signaling includes the mapping relationship.

Optionally, the sending unit 041 is further configured to send the second configuration signaling to the UE, where the second configuration signaling includes a CSI set corresponding to the first CSI set type.

Optionally, the sending unit 041 is further configured to send, to the UE, third configuration signaling, where the third configuration signaling includes a type indicated by the CSI request.

The type of the CSI request indication in this embodiment can be referred to the description in the above embodiment.

The CSI set type in this embodiment can also refer to the description in the above embodiment.

The embodiment of the present invention provides a base station, where the base station sends control information to the user equipment UE, where the control information includes a first CSI request indication, where the first CSI request indication is used to indicate that the UE reports an aperiodic CSI, and then the base station receives the The CSI measurement report sent by the UE, where the CSI measurement report includes the aperiodic CSI corresponding to the first CSI request indication, and may enable the UE to report the CSI set to the base station flexibly according to the CSI request indication mapping relationship with the CSI set type.

It should be noted that the receiving unit 042 in the foregoing embodiment may be implemented by a receiver or by a transceiver. The processing unit 043 in the above embodiment may be implemented by a processor, or may be implemented by other circuit units having processing functions. Above The transmitting unit 041 in the embodiment may be implemented by a transmitter or by a transceiver. The memory unit in the above embodiment may be a memory.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

In addition, in the devices and systems in various embodiments of the present invention, each functional unit may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above units may be implemented in the form of hardware or in the form of hardware plus software functional units.

All or part of the steps of implementing the foregoing method embodiments may be performed by hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and when executed, the program includes the steps of the foregoing method embodiments; The foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. medium.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims (26)

1. A method for reporting channel state information CSI, characterized in that the method comprises:

   The user equipment UE receives control information sent by the base station, where the control information includes a first CSI request indication;

   Determining, by the UE, the first CSI set type corresponding to the first CSI request indication according to the CSI request indication mapping relationship with the CSI set type, where the CSI request indication is used to indicate that the UE reports the aperiodic CSI;

   The UE sends a CSI measurement report to the base station, where the CSI measurement report includes an aperiodic CSI corresponding to the first CSI set type.
2. The method according to claim 1, wherein before the acquiring the first CSI set type by the UE, the method further includes:

   Receiving, by the UE, the first configuration signaling sent by the base station, where the first configuration signaling includes the mapping relationship;

   The acquiring, by the UE, the first CSI set type includes:

   Obtaining, by the UE, the first CSI set type corresponding to the first CSI request indication according to the mapping relationship received from the first configuration signaling;

   or,

   The acquiring, by the UE, the first CSI set type includes:

   And acquiring, by the UE, the first CSI set type corresponding to the first CSI request indication according to the mapping relationship pre-configured by the UE.
3. Method according to claim 1 or 2, characterized in that

   The CSI set type is a CSI of a carrier set, where the carrier set corresponds to a carrier that carries the control information, or the carrier set is a carrier schedulable carrier that carries the control information; or

   The CSI set type is a CSI of a cell set, where the cell set corresponds to a cell that carries the control information, or the cell set is a cell schedulable cell that carries the control information.
4. The method according to claim 1 or 2 or 3, further comprising: before the acquiring the first CSI set type by the UE,

   The UE receives the second configuration signaling sent by the base station, where the second configuration signaling includes a CSI set corresponding to the first CSI set type;

   Before the sending, by the UE, the CSI measurement report to the base station, the method further includes:

   The UE acquires a CSI set corresponding to the first CSI set type, where the aperiodic CSI is a CSI corresponding to the CSI set;

   or,

   Before the sending, by the UE, the CSI measurement report to the base station, the method further includes:

   And acquiring, by the UE, a CSI set corresponding to the first CSI set type that is pre-configured by the UE, where the aperiodic CSI is a CSI corresponding to the CSI set.
5. The method according to any one of claims 1 to 4, further comprising: before the acquiring the first CSI set type by the UE,

   Receiving, by the UE, third configuration signaling that is sent by the base station, where the third configuration signaling includes a type indicated by the CSI request;

   Determining, by the UE, the CSI request indication included in the control information according to the type indicated by the CSI request;

   or,

   Before the UE acquires the first CSI set type, the method further includes:

   Determining, by the UE, the CSI request indication included in the control information according to a type indicated by the CSI request pre-configured by the UE.
6. The method according to claim 5, wherein the type of the CSI request indication is at least one of the following:

   The CSI request indication is represented by at least 3 bits;

   The CSI request indication is represented in a different format of the control information;

   The CSI request indication is represented by an information indicating an uplink scheduling or a downlink scheduling;

   The CSI request indication is represented by a modulation and coding policy MCS carried by the control information;

   The CSI request indication is represented by a carrier identifier used by the base station to send a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH;

   The CSI request indication is represented by an identifier of a PDCCH group after the physical downlink control channel PDCCH is grouped, or an identifier of an ePDCCH group after the enhanced physical downlink control channel ePDCCH is grouped;

   The CSI request indication is an identifier representation of a group of a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH schedulable carrier;

   The CSI request indicates an identifier of a band to which the physical downlink control channel PDCCH belongs Express

   The CSI request indication is to schedule an uplink transmission or a downlink received resource, or a time domain location, or a frequency domain location representation;

   The CSI request indication is indicated by the indication information of the control information in a common search space or a UE search space.
7. The method according to claim 4, wherein the CSI set is at least one of the following:

   CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or CSI of the same cell group after the cells are grouped according to the cell identifier;

   CSIs of downlink carriers belonging to cells of the same PUCCH group after different cells are grouped according to different physical uplink control information PUCCH;

   CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands;

   CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier;

   After configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes;

   After configuring different subframe sets for each carrier, CSIs of the same carrier group after the carriers are grouped according to different subframe sets;

   The wideband channel quality indicates the CSI to which the CQI belongs or the CSI to which the subband CQI belongs;

   CSI of a carrier belonging to the same physical downlink control channel PDCCH or enhanced downlink physical control channel ePDCCH scheduling;

   CSI attributed to the same antenna port on different carriers.
8. A method for receiving channel state information CSI, comprising:

   The base station sends control information to the user equipment UE, where the control information includes a first CSI request indication, where the first CSI request indication is used to indicate that the UE reports an aperiodic CSI;

   The base station receives a CSI measurement report sent by the UE, where the CSI measurement report includes an aperiodic CSI corresponding to the first CSI request indication.
9. The method according to claim 8, wherein before the base station sends the control information to the UE, the method further includes:

   The base station sends first configuration signaling to the UE, where the first configuration signaling includes the mapping relationship.
10. Method according to claim 8 or 9, characterized in that Before the UE sends the control information, the method further includes:

    The base station sends a second configuration signaling to the UE, where the second configuration signaling includes a CSI set corresponding to the first CSI set type.
11. The method according to any one of claims 8 to 10, further comprising: before the base station sends the control information to the UE,

    The base station sends third configuration signaling to the UE, where the third configuration signaling includes a type indicated by the CSI request.
12. The method according to any one of claims 8 to 11, wherein the type of the CSI request indication is at least one of the following:

    The CSI request indication is represented by at least 3 bits;

    The CSI request indication is represented in a different format of the control information;

    The CSI request indication is represented by information indicating an uplink scheduling or information of a downlink scheduling;

    The CSI request indication is represented by a modulation and coding policy MCS carried by the control information;

    The CSI request indication is represented by a carrier identifier used by the base station to send a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH;

    The CSI request indication is represented by an identifier of a PDCCH group after the physical downlink control channel PDCCH is grouped, or an identifier of an ePDCCH group after the enhanced physical downlink control channel ePDCCH is grouped;

    The CSI request indication is an identifier representation of a group of a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH schedulable carrier;

    The CSI request indication is represented by an identifier of a frequency band to which the physical downlink control channel PDCCH belongs;

    The CSI request indication is to schedule an uplink transmission or a downlink received resource, or a time domain location, or a frequency domain location representation;

    The CSI request indication is indicated by the indication information of the control information in a common search space or a UE search space.
13. The method of claim 10, wherein the CSI set is at least one of the following:

    CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or CSI of the same cell group after the cells are grouped according to the cell identifier;

    Different cells are grouped according to different physical uplink control information PUCCH CSI of a downlink carrier of a cell belonging to the same PUCCH group;

    CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands;

    CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier;

    After configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes;

    After configuring different subframe sets for each carrier, CSIs of the same carrier group after the carriers are grouped according to different subframe sets;

    The wideband channel quality indicates the CSI to which the CQI belongs or the CSI to which the subband CQI belongs;

    CSI of a carrier belonging to the same physical downlink control channel PDCCH or enhanced downlink physical control channel ePDCCH scheduling;

    CSI attributed to the same antenna port on different carriers.
14. A user equipment, comprising:

    a receiving unit, configured to receive control information sent by the base station, where the control information includes a first CSI request indication;

    An acquiring unit, configured to acquire, according to the mapping relationship between the CSI request and the CSI set type, the first CSI set type corresponding to the first CSI request indication, where the CSI request indication is used to indicate The UE reports the aperiodic CSI;

    a sending unit, configured to send a CSI measurement report to the base station after the acquiring unit acquires the aperiodic CSI corresponding to the first CSI set type, where the CSI measurement report includes: corresponding to the first CSI set type Acyclic CSI.
15. The user equipment according to claim 14, wherein the receiving unit is further configured to receive the first configuration signaling sent by the base station, where the first configuration signaling includes the mapping relationship;

    The acquiring unit is configured to: acquire, according to the mapping relationship received from the first configuration signaling, a first CSI set type corresponding to the first CSI request indication from the storage unit;

    or,

    And the acquiring unit is configured to: acquire the first CSI set type corresponding to the first CSI request indication according to the mapping relationship pre-configured by the UE by the storage unit.
16. User equipment according to claim 14 or 15, characterized in that

    The CSI set type is a CSI of a carrier set, where the carrier set corresponds to a carrier that carries the control information, or the carrier set is a carrier schedulable carrier that carries the control information; or

    The CSI set type is a CSI of a cell set, where the cell set corresponds to a cell that carries the control information, or the cell set is a cell schedulable cell that carries the control information.
17. The user equipment according to claim 14 or 15 or 16, wherein the receiving unit is further configured to receive second configuration signaling sent by the base station, where the second configuration signaling includes the first CSI set corresponding to the CSI set type;

    The obtaining unit is further configured to:

    Acquiring, by the storage unit, a CSI set corresponding to the first CSI set type, where the aperiodic CSI is a CSI corresponding to the CSI set;

    or,

    The obtaining unit is further configured to:

    Acquiring, by the storage unit, a CSI set corresponding to the first CSI set type that is pre-configured by the UE, where the aperiodic CSI is a CSI corresponding to the CSI set.
18. The user equipment according to any one of claims 14 to 17, wherein the receiving unit is further configured to receive third configuration signaling sent by the base station, where the third configuration signaling includes The type of CSI request indication;

    The obtaining unit is further configured to: determine, according to the type of the CSI request indication, the CSI request indication included in the control information;

    or,

    The acquiring unit is further configured to determine, according to the type of the CSI request indication that is pre-configured by the UE, the CSI request indication included in the control information.
19. The user equipment according to claim 18, wherein the type of the CSI request indication is at least one of the following:

    The CSI request indication is represented by at least 3 bits;

    The CSI request indication is represented in a different format of the control information;

    The CSI request indication is represented by information indicating an uplink scheduling or information of a downlink scheduling;

    The CSI request indication is represented by a modulation and coding policy MCS carried by the control information;

    The CSI request indication is used by the base station to send a physical downlink control channel PDCCH Or enhancing the carrier identifier representation of the physical downlink control channel ePDCCH;

    The CSI request indication is represented by an identifier of a PDCCH group after the physical downlink control channel PDCCH is grouped, or an identifier of an ePDCCH group after the enhanced physical downlink control channel ePDCCH is grouped;

    The CSI request indication is an identifier representation of a group of a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH schedulable carrier;

    The CSI request indication is represented by an identifier of a frequency band to which the physical downlink control channel PDCCH belongs;

    The CSI request indication is to schedule an uplink transmission or a downlink received resource, or a time domain location, or a frequency domain location representation;

    The CSI request indication is indicated by the indication information of the control information in a common search space or a UE search space.
20. The user equipment according to claim 17, wherein the CSI set is at least one of the following:

    CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or CSI of the same cell group after the cells are grouped according to the cell identifier;

    CSIs of downlink carriers belonging to cells of the same PUCCH group after different cells are grouped according to different physical uplink control information PUCCH;

    CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands;

    CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier;

    After configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes;

    After configuring different subframe sets for each carrier, CSIs of the same carrier group after the carriers are grouped according to different subframe sets;

    The wideband channel quality indicates the CSI to which the CQI belongs or the CSI to which the subband CQI belongs;

    CSI of a carrier belonging to the same physical downlink control channel PDCCH or enhanced downlink physical control channel ePDCCH scheduling;

    CSI attributed to the same antenna port on different carriers.
21. A base station, comprising:

    a processing unit, configured to control, by the sending unit, to send control information to the user equipment UE, where the control information includes a first CSI request indication, where the first CSI request indication is used to indicate the The UE reports the aperiodic CSI;

    And a receiving unit, configured to receive a CSI measurement report sent by the UE, where the CSI measurement report includes an aperiodic CSI corresponding to the first CSI request indication.
22. The base station according to claim 21, wherein the sending unit is further configured to send first configuration signaling to the UE, where the first configuration signaling includes the mapping relationship.
23. The base station according to claim 21 or 22, wherein the sending unit is further configured to send the second configuration signaling to the UE, where the second configuration signaling includes the first CSI set type corresponding to CSI collection.
24. The base station according to any one of claims 21 to 23, wherein the sending unit is further configured to send third configuration signaling to the UE, where the third configuration signaling includes the CSI request indication type.
25. The base station according to any one of claims 21 to 24, wherein the type of the CSI request indication is at least one of the following:

    The CSI request indication is represented by at least 3 bits;

    The CSI request indication is represented in a different format of the control information;

    The CSI request indication is represented by information indicating an uplink scheduling or information of a downlink scheduling;

    The CSI request indication is represented by a modulation and coding policy MCS carried by the control information;

    The CSI request indication is represented by a carrier identifier used by the base station to send a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH;

    The CSI request indication is represented by an identifier of a PDCCH group after the physical downlink control channel PDCCH is grouped, or an identifier of an ePDCCH group after the enhanced physical downlink control channel ePDCCH is grouped;

    The CSI request indication is an identifier representation of a group of a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH schedulable carrier;

    The CSI request indication is represented by an identifier of a frequency band to which the physical downlink control channel PDCCH belongs;

    The CSI request indication is to schedule an uplink transmission or a downlink received resource, or a time domain location, or a frequency domain location representation;

    The CSI request indication is indicated by the indication information of the control information in a common search space or a UE search space.
26. The base station according to claim 23, wherein said CSI set is At least one of the following:

    CSI of the same carrier group after the carrier is grouped according to the carrier identifier, or CSI of the same cell group after the cells are grouped according to the cell identifier;

    CSIs of downlink carriers belonging to cells of the same PUCCH group after different cells are grouped according to different physical uplink control information PUCCH;

    CSI of a carrier that belongs to the same band or a combination of the same band after grouping the carriers according to different bands;

    CSI of the licensed spectrum carrier or CSI of the unlicensed spectrum carrier;

    After configuring at least one CSI process for each carrier, the CSI of the same carrier group after the carrier is grouped according to different processes;

    After configuring different subframe sets for each carrier, CSIs of the same carrier group after the carriers are grouped according to different subframe sets;

    The wideband channel quality indicates the CSI to which the CQI belongs or the CSI to which the subband CQI belongs;

    CSI of a carrier belonging to the same physical downlink control channel PDCCH or enhanced downlink physical control channel ePDCCH scheduling;

    CSI attributed to the same antenna port on different carriers.

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