WO2013166804A1

WO2013166804A1 - Method, ue, base station, and system for triggering channel state information non-periodic feedback

Info

Publication number: WO2013166804A1
Application number: PCT/CN2012/082540
Authority: WO
Inventors: 夏亮; 任晓涛; 周明宇
Original assignee: 华为技术有限公司
Priority date: 2012-05-11
Filing date: 2012-10-08
Publication date: 2013-11-14
Also published as: CN103518395A; WO2013166624A1; WO2013166814A1; WO2013166814A8

Abstract

The present invention is applicable in the field of communications. Provided are a method, user equipment (UE), base station, and system for triggering a channel state information (CSI) non-periodic feedback. The method comprises: the UE receiving a dynamic signaling, where the dynamic signaling is used for indicating that the UE needs to feedback a CSI measurement hypothesis set of a first service cell, or, the CSI measurement hypothesis set of a service cell set, where the CSI measurement hypothesis set comprises at least one measurement hypothesis, where the one measurement hypothesis comprises at least one measurement reference signal, and where the service cell set comprises at least one service cell; and, feeding back, on the basis of the dynamic signaling, the CSI of the first service cell based on the CSI measurement hypothesis set or the CSI of the service cell set based on the CSI measurement hypothesis set. The present invention is capable of effectively solving the problem in a CoMP system of triggering the CSI non-periodic feedback based on various CSI measurement hypotheses, thus reducing feedback overhead.

Description

Method for triggering channel state information aperiodic feedback, UE, base station and system

The present invention belongs to the field of communications technologies, and in particular, to a method, a UE, a base station, and a system for triggering channel state information aperiodic feedback. Background technique

Coordinated Multiple Point transmission and reception (CoMP) technology means: Multiple access points provide data transmission services for one or more users at the same time. For the coordinated multi-point transceiver technology, the base station needs to use the channel state information between the user equipment (UE) and the candidate access point, the user equipment, and the candidate access set as the input amount or the reference quantity to complete the transmission pre- Encoding, multi-user pairing, etc.

In the prior art, the aperiodic feedback refers to the uplink shared channel of the physical layer by the UE according to the channel state information (CSI) request field (CSI request field) in the dynamic signaling of the serving cell c (Physical Uplink Shared Channel) And transmitting, by the PUSCH, the CSI on the corresponding time-frequency resource, where the dynamic signaling includes downlink control information (Downlink Control Information, DCI) or random access response (Analog Access Response Grant) for uplink transmission, where The transmitted DCI includes DCI format 0 and DCI format 4. Specifically, if the CSI request field in the dynamic signaling includes 1 bit (bit) information, "0" indicates that the aperiodic feedback is not triggered, "1" indicates that the aperiodic feedback of the serving cell c is triggered; if the CSI in the dynamic signaling The request field contains 2 bits of information, then the aperiodic feedback is triggered according to the representation of Table 1: Numerical description of the CSI request field

ΌΟ' does not trigger aperiodic feedback

'01' triggers aperiodic feedback of serving cell c

'10, triggering aperiodic feedback of the set of serving cells 1

'11, aperiodic feedback of the set of contact cells 2

In Table 1, the serving cell set 1 and the serving cell set 2 are respectively configured by higher layer signaling.

In the prior art, the serving cell may be a component carrier (CC), and the CSI of the serving cell may refer to a CSI corresponding to the CC, which is different from the CSI based on the CSI measurement hypothesis in the CoMP. In CoMP, the UE needs to feed back CSI based on multiple CSI measurement hypotheses, so it is necessary to introduce an aperiodic feedback trigger mechanism based on multiple CSI measurement hypotheses. Summary of the invention

Embodiments of the present invention provide a method for triggering aperiodic feedback of channel state information to solve the problem of CSI aperiodic feedback based on CSI measurement assumptions.

The embodiment of the present invention is implemented by the method for triggering aperiodic feedback of channel state information, where the method includes:

The user equipment UE receives the dynamic signaling, where the dynamic signaling is used to indicate a CSI measurement hypothesis set of the first serving cell or a CSI measurement hypothesis set of the serving cell set, where the UE needs to feed back the channel state information CSI, and the CSI measurement hypothesis The set includes at least one measurement hypothesis, the one measurement hypothesis includes at least one measurement reference signal, the set of serving cells includes at least one serving cell, and the CSI or service based on the CSI measurement hypothesis set is fed back according to the dynamic signaling. The CSI of the set of cells based on the CSI measurement hypothesis set.

A method for triggering aperiodic feedback of channel state information, the method comprising:

Transmitting the dynamic signaling to the user equipment UE, so that the UE feeds back, according to the dynamic signaling, the CSI of the CSI measurement hypothesis set based on the CSI or the set of serving cell of the first serving cell based on the CSI measurement hypothesis set; The dynamic signaling is used to indicate a CSI measurement hypothesis set of a first serving cell or a CSI measurement hypothesis set of a serving cell set, where the UE needs to feed back channel state information CSI, where the CSI measurement set includes at least one measurement 4, the one measurement includes at least one measurement reference signal, and the set of serving cells includes at least one serving cell.

The embodiment of the invention further provides a user equipment, where the user equipment includes:

a signaling receiving unit, configured to receive dynamic signaling, where the dynamic signaling is used to indicate that the CSI measurement hypothesis set of the first serving cell or the CSI measurement H of the serving cell set that the UE needs to feed back the channel state information CSI is not set, The CSI measurement H does not include at least one measurement H, the one measurement hypothesis includes at least one measurement reference signal, and the serving cell set includes at least one serving cell;

The information feedback unit is configured to feed back, according to the dynamic signaling received by the signaling receiving unit, the CSI of the first serving cell based on the CSI measurement hypothesis set CSI or the serving cell set based on the corresponding channel state information CSI measurement hypothesis.

A base station, the base station includes:

a signaling sending unit, configured to send dynamic signaling to the user equipment UE, so that the UE feeds back, according to the dynamic signaling, the CSI measurement hypothesis set of the CSI or the serving cell set of the first serving cell based on the CSI measurement hypothesis set CSI;

The dynamic signaling is used to indicate a CSI measurement hypothesis set of a first serving cell or a CSI measurement hypothesis set of a serving cell set, where the UE needs to feed back channel state information CSI, where the CSI measurement set includes at least one measurement 4, the one measurement includes at least one measurement reference signal, and the set of serving cells includes at least one serving cell.

Embodiments of the present invention also provide a wireless communication system, where the wireless communication system includes the user equipment and/or the base station.

It can be seen from the above that the embodiment of the present invention solves the triggering of the CoMP system based on the CSI based on the CSI measurement hypothesis set CSI or the CSI measurement hypothesis set CSI of the first serving cell based on the dynamic signaling. CSI measurement hypothetical CSI aperiodic feedback problem, improve The flexibility of acyclic feedback CSI. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. It is obvious that the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those skilled in the art without any inventive labor.

1 is a schematic diagram of a system scenario to which a method for triggering channel state information aperiodic feedback is provided according to an embodiment of the present invention;

2 is a flowchart of implementing an aperiodic feedback method for trigger channel state information according to another embodiment of the present invention;

FIG. 3 is a flowchart of an implementation of a non-periodic feedback method for triggering channel state information according to another embodiment of the present invention; FIG.

4 is a structural diagram of a user equipment according to another embodiment of the present invention;

FIG. 5 is a structural diagram of a base station according to another embodiment of the present invention;

6 is a flowchart of an implementation of a method for feeding back channel state information CSI according to another embodiment of the present invention;

FIG. 7 is a flowchart of an implementation of another method for feeding back channel state information CSI according to another embodiment of the present invention;

FIG. 8 is a structural diagram of a device according to another embodiment of the present invention; FIG.

FIG. 9 is a structural diagram of another apparatus according to another embodiment of the present invention; FIG.

FIG. 10 is a structural diagram of another apparatus according to another embodiment of the present invention; FIG.

FIG. 11 is a structural diagram of another apparatus according to another embodiment of the present invention. detailed description

In order to make the objects, technical solutions and advantages of the present invention more clear, the following The present invention will be further described in detail. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The techniques described in the embodiments of the present invention can be applied to various wireless communication systems, such as current 2G, 3G communication systems and next generation communication systems, such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA, Code Division Multiple Access system, Time Division Multiple Access (TDMA) system, Wideband Code Division Multiple Access (WCDMA), Frequency Division Multiple Access (FDMA), Frequency Division Multiple Addressing (FDMA) system, Orthogonal Frequency-Division Multiple Access (OFDMA) system, single carrier FDMA (SC-FDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (LTE, Long Term Evolution) ) systems, and other such communication systems.

In order to explain the technical solutions of the present invention, the following description will be made by way of specific embodiments.

FIG. 1 is a schematic diagram of a system scenario in which a trigger channel state information aperiodic feedback method is provided according to an embodiment of the present invention. For convenience of description, only parts related to the embodiment are shown.

As shown in FIG. 1, the system includes a User Equipment (UE) 1 and a plurality of base stations 2, and the UE1 and the base station 2 communicate through a network connection.

The UE1 may be a handheld device with a wireless connection function, or other processing device connected to a wireless modem, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.

The base station 2 (e.g., an access point) may refer to a device in the access network that communicates with the wireless terminal over one or more sectors on the air interface, and may be a base station in GSM or CDMA (BTS, Base Transceiver Station) ), a base station (NodeB) in WCDMA, an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in LTE, and the like.

In this embodiment, a certain base station in the base station 2 may be used as a transmission node of a certain CSI corresponding measurement hypothesis, and other base stations serve as interference nodes. Or one base station is used as a transmission node, and another base station is used as an interference node, and other base stations except the two base stations are used as non-interfering nodes. Or One base station is used as a transmission node, and the other base station is used as a non-interfering node, and other base stations except the two base stations serve as interference nodes.

It should be noted that the system scenario provided in this embodiment is only used to explain the present invention, and does not limit the scope of protection of the present invention.

FIG. 2 is a flowchart showing an implementation process of a trigger channel state information aperiodic feedback method according to another embodiment of the present invention. The method is detailed as follows.

In step S201, receiving dynamic signaling;

In step S202, the first serving cell feeds back the CSI based on the CSI measurement hypothesis set of the CSI or the set of serving cells of the hypothesis set based on the corresponding channel state information CSI according to the dynamic signaling.

In this embodiment, the dynamic signaling is used to indicate a CSI measurement hypothesis set of a first serving cell or a CSI measurement hypothesis set of a serving cell set, where the UE needs to feed back channel state information CSI, where the serving cell set includes at least a serving cell, the CSI measurement hypothesis set includes at least one measurement hypothesis, the one measurement hypothesis includes at least one measurement reference signal that the user equipment needs to measure, and the user equipment measures the channel and the interference according to the reference signal, thereby obtaining CSI; For the description of the embodiment, reference may be made to the description of the measurement set in this embodiment, and details are not described herein again.

As a preferred embodiment of the present invention, the dynamic signaling includes a CSI request field, where the CSI request field includes an N number, and the N is an integer greater than or equal to 1;

The dynamic signaling is used to indicate that the CSI measurement hypothesis set of the first serving cell of the UE that needs to feed back the channel state information CSI or the CSI measurement hypothesis set of the serving cell set includes:

The dynamic signaling indicates, by using the CSI request field, that the CSI of the CSI measurement hypothesis set of the first serving cell is triggered to be reported or the CSI of the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cell sets is triggered. Only then.

For example, when the CSI request field indicates that the CSI of the CSI measurement hypothesis set of the first serving cell is triggered.

In this embodiment, the first serving cell includes but is not limited to any one of the following: a predefined serving cell, a serving cell configured by high layer signaling, a serving cell that sends dynamic signaling, and a receiving non-circumference The serving cell of the CSI and the serving cell indicated by the dynamic signaling.

The CSI measurement hypothesis set includes but is not limited to at least one of the following: a first CSI measurement hypothesis, the first CSI measurement 4艮 is set to a predefined CSI measurement H, or the first CSI measurement 4叚 is set to The CSI measurement hypothesis configured by the high layer signaling, or the first CSI measurement is assumed to be the lowest or highest CSI measurement H; the CSI measurement H other than the first CSI measurement H is not; all CSI measurements are 4艮The first CSI measurement H is not combined with one or more CSI measurement hypotheses other than the first CSI measurement 4; and the CSI measurement hypothesis set of the high layer signaling configuration.

In this embodiment, the CSI measurement hypothesis is configured by the high layer signaling to the UE, and the CSI measurement hypothesis includes a channel measurement hypothesis and an interference measurement hypothesis. The CSI of the first CSI measurement hypothesis described below is denoted as CSI1, and the CSI corresponding to the CSI measurement hypothesis other than the CSI1 is denoted as CSI2 and CSI3.

And receiving a number N of bits of the CSI request field configured by the base station by using the first high layer signaling. For example, if the CSI request field is lbit, as shown in Table 2:

If the CSI request field is 2 bits, as shown in Table 3:

Table 3: If the CSI request field is 3 bits, as shown in Table 4: Numerical description of the CSI request field

ΌΟΟ' does not trigger aperiodic feedback

Triggering the non-week of CS 11 of the first serving cell

ΌΟΙ'

Feedback

Triggering the non-week of the CS 12 of the first serving cell

'010'

Feedback

Triggering the non-week of CSI 3 of the first serving cell

'ΟΙΓ

Feedback

Triggering CSI2, CSI3 of the first serving cell

ΊΟΟ'

Aperiodic feedback

Triggering CSI1, CSI2 of the first serving cell

ΊΟΓ

Aperiodic feedback

Triggering CSI1, CSI3 of the first serving cell

'110'

Aperiodic feedback

Triggering CSI1, CSI2 of the first serving cell,

'111,

Aperiodic feedback of CSI3

Table 4

The CSI request field configured by the receiving base station by using the second high-level signaling is used to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell; or the receiving base station transmits the CSI request field or at least The configured CSI request field is used to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell:

Transmitting a time domain resource number of the physical layer uplink shared channel PUSCH of the CSI carrying the aperiodic feedback;

Frequency domain resource number; and

Service cell number.

Specifically, the UE is configured according to a predefined rule or a received base station by using high layer signaling, and at least one of the following: the time domain resource number, the frequency domain resource number, and the serving cell number. And determining whether the CSI request field is used to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell.

If at least one of the following: the time domain resource number, and the frequency domain resource number, and the serving cell number meet the predefined rules or rules configured by the base station through higher layer signaling, The CSI request field triggers the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell; otherwise, the CSI request field is not used to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell. For example, it is assumed that at least one of the following transmission CSI request fields: the time domain resource number, the frequency domain resource number, and the serving cell number, when 1, 1 is an even number, indicating that the CSI request field is used to trigger the first service The CSI measurement of the cell assumes that the CSI of the set is reported. When 1 is an odd number, it indicates that the CSI request field is not used to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell; or the predefined set L, if k L, represents the CSI request. The domain is used to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell, and if L, the CSI request domain is not used to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell.

If the CSI request field is not used for triggering the CSI of the CSI measurement hypothesis set of the first serving cell, the CSI request field is used to trigger the reporting of the existing CSI of the LTE Release 10. For example, when the CSI request field contains lbit information, '0' indicates that the aperiodic feedback is not triggered, and '1' indicates that the aperiodic feedback of the serving cell c is triggered.

As a preferred embodiment of the present invention, this embodiment may trigger CSI aperiodic feedback of multiple CSI measurement H, and implement CSI aperiodic feedback of multi-serving cell (multi-carrier) aperiodic feedback and multiple CSI measurement hypotheses. Semi-static or dynamic switching.

For example, when the CSI request field is used to indicate the reporting of the CSI that triggers the first CSI measurement hypothesis of the first serving cell or indicates that the CSI of the second serving cell and the CSI measurement hypothesis set 1 is triggered to report or trigger the triggering of the second serving cell. And the CSI measurement assumes that the CSI of the set two is reported.

In this embodiment, if the CSI request field includes lbit information, '0' indicates that the aperiodic feedback is not triggered, T indicates that the acyclic feedback of the serving cell c is triggered; if the CSI request field contains the 2 bit information, The representation in Table 5 triggers acyclic feedback: Numerical description of the CSI request field

ΌΟ' does not trigger aperiodic feedback

Triggering the non-week of CS 11 of the first serving cell

'01'

Feedback

Trigger the second serving cell and CSI measurement hypothesis

'10,

Aperiodic feedback of set one

Trigger the second serving cell and CSI measurement hypothesis

'11,

Aperiodic feedback of set two

Table 5

The second serving cell and the CSI measurement hypothesis set one and the second serving cell and the CSI measurement hypothesis set 2 in Table 5 are configured by the high layer signaling to the UE.

In this embodiment, the CSI measurement set of the serving cell set includes at least one second measurement hypothesis corresponding to the at least one second serving cell;

The second serving cell may be one or more serving cells in the set of serving cells, for example, the second serving cell may be cell1 or cell2. The aperiodic feedback that triggers the second serving cell and the CSI measurement H does not gather one in the foregoing Table 5 may be aperiodic feedback for triggering cel ll and CSI measurement 4, and the triggering cel l2 and CSI measurement hypothesis set two Aperiodic feedback.

Before the user equipment UE receives the dynamic signaling, the method further includes:

Receiving, by the base station, the third higher layer signaling, where the third higher layer signaling includes a joint coding of the second measurement hypothesis corresponding to the second serving cell and the second serving cell.

The third high-level signaling for configuring the second serving cell and the CSI measurement hypothesis set one or the second serving cell and the CSI measurement hypothesis set 2 includes X bits, where X is the maximum serving cell number multiplied by the maximum The CSI measures a hypothesis number, and there is a mapping relationship between the bit, the serving cell, and the CSI measurement hypothesis, and the X is an integer greater than or equal to 1.

The mapping relationship between the bit, the serving cell, and the CSI measurement hypothesis includes but is not limited to: each bit corresponds to one CSI measurement hypothesis in one serving cell. For example, the first bit corresponds to the CSI measurement hypothesis of number 1 in the serving cell numbered 1, and the second bit corresponds to the CSI measurement hypothesis numbered 2 in the serving cell numbered 1, and so on, so that each bit corresponds a service A CSI measurement hypothesis in a cell. For another example, the serving cell is jointly numbered with the CSI measurement hypothesis, and the nth bit corresponds to the serving cell with the joint number n and the CSI measurement hypothesis, wherein the joint number n is defined by, but not limited to: the joint number n= (the service cell number -1 ) X maximum CSI measurement hypothesis number + CSI measurement hypothesis number or joint number n = (CSI measurement hypothesis number -1) X maximum number of serving cells + serving cell number. The bit value of '0' indicates that the CSI of the CSI measurement in the serving cell corresponding to the bit does not require feedback, and the bit value of T indicates that the CSI of the CSI measurement hypothesis in the serving cell corresponding to the bit needs feedback; The bit value is '0', indicating that the CSI of the CSI measurement in the serving cell corresponding to the bit needs feedback, and the bit value T indicates that the CSI of the CSI measurement hypothesis in the serving cell corresponding to the bit does not require feedback.

The high-level signaling for configuring the second serving cell and the CSI measurement hypothesis set 1 or another second serving cell in the set of serving cells and the CSI measurement hypothesis set 2 includes Y bytes, and Y is preset. An integer greater than or equal to 1, such as Y = 5 or 8. Each of the bytes corresponds to a joint number η of a serving cell and a CSI measurement hypothesis, wherein the joint number η is defined by, but not limited to: joint number η= (serving cell number-1) X maximum CSI measurement hypothesis number + CSI measurement Assume number or joint number n = (CSI measurement hypothesis number - 1) X maximum number of serving cells + serving cell number. If the byte value included in the high layer signaling is not within the value range of the joint number n, it indicates that the byte is not used to trigger aperiodic feedback; if the high byte signaling includes a certain byte value S Within the range of values of the joint number n, it indicates that the serving cell with the joint number S and the CSI of the CSI measurement hypothesis require feedback. For example, 0 is not in the range of the joint number n. If the byte value is '0, it means that the byte is not used to trigger aperiodic feedback. If the byte value is 'η, and η is not 0, the joint number is The serving cell of η and the CSI of the CSI measurement hypothesis require feedback.

The high layer signaling used to configure the second serving cell and the CSI measurement hypothesis set 1 or another second serving cell in the set of serving cells and the CSI measurement hypothesis set 2 may be used to configure the cell 1 and CSI measurement hypothesis set 1 or cell 2 And the high-level signaling of the CSI measurement hypothesis set two.

It should be noted that the service cell number, the CSI measurement hypothesis number, the joint number of the serving cell and the CSI measurement hypothesis in this embodiment are all exemplified by the smallest number, but the present invention is not limited to the minimum. The number is 1 and can be 0 or other values.

This embodiment does not need to modify the dynamic signaling, and only needs to modify the description of the dynamic signaling by using the high layer signaling, thereby reducing the dynamic signaling overhead.

For example, when the CSI request field is used to indicate that the CSI of the CSI measurement hypothesis set that triggers the first serving cell is reported or the CSI of the CSI measurement hypothesis set in the set of serving cell set 1 is triggered to be triggered or the second service cell set is triggered. The CSI measurement assumes a report of the CSI of the set.

In this embodiment, the definition of the first service small area CSI measurement hypothesis set is the same as the definition of the first service small area CSI measurement hypothesis set in the foregoing preferred embodiment of the present invention, and details are not described herein.

In this embodiment, when the CSI request field is 2 bits, as shown in Table 6:

When the CSI request field is 3 bits, as shown in Table 7:

Numerical value of the CSI request field

'000' does not trigger aperiodic feedback

Triggering the non-week of CS 11 of the first serving cell

'ΟΟΓ

Feedback

Triggering the non-CS 11 of the serving cell set

'010'

Periodic feedback

Triggering the non-CS 11 of the serving cell set II

ΌΙ Ι'

Periodic feedback

Triggering CS 12 , CS 13 of the first serving cell

Ί ΟΟ'

Aperiodic feedback Triggering CSI1 of the first serving cell,

'ΙΟΓ

Aperiodic feedback of CSI2, CSI3

Triggering CSI2, CSI3 of the set of serving cells

ΊΙΟ'

Aperiodic feedback

Trigger CSI1 of the service cell set one,

'iir

Aperiodic feedback of CSI2, CSI3

Table 7

When the CSI request field is an M+K bit, the M bit in the M+K bit is used to indicate that the CSI is triggered by aperiodic feedback and the first serving cell or the serving cell set for indicating that the aperiodic feedback CSI is triggered is triggered. And the K bit in the M+K bit is used to indicate a CSI measurement set corresponding to the first serving cell or a CSI measurement set corresponding to the set of serving cells, where the M and K are Is an integer greater than or equal to 1. For example, when M=l, lbit is used to indicate whether to trigger aperiodic feedback, for example, '0' means no acyclic feedback is triggered, T means aperiodic feedback that triggers serving cell c; when K=3, each The bits correspond to a CSI measurement hypothesis, '0, indicating that the CSI of the CSI measurement hypothesis corresponding to the bit does not require feedback, and T indicates that the CSI of the CSI measurement hypothesis corresponding to the bit needs feedback. For another example, when M=2, 2bit is used to indicate whether to trigger aperiodic feedback and which aperiodic feedback of the set of serving cells is triggered, for example, triggering aperiodic feedback according to the representation of Table 8:

When K = 3, each bit corresponds to a CSI measurement hypothesis, '0, indicating that the CSI of the CSI measurement hypothesis corresponding to the bit does not require feedback, and T indicates that the CSI of the CSI measurement hypothesis corresponding to the bit requires feedback.

In this embodiment, the dynamic signaling includes a CSI request domain and a carrier indication domain CIF, where The CSI request field is used to indicate a first serving cell or a set of serving cells that trigger aperiodic feedback CSI, and the carrier indicator field (CIF) is used to indicate a CSI measurement hypothesis set corresponding to the first serving cell or A set of CSI measurement hypotheses corresponding to the set of serving cells.

In order to further reduce the overhead of the dynamic signaling, the embodiment further includes: the partial status in the CSI request domain is represented by a time domain resource number and/or a frequency domain resource number and/or a serving cell number of the CSI request domain; or By transmitting a physical layer uplink shared channel PUSCH carrying aperiodic feedback content

Specifically, the UE determines, according to a predefined rule or a received rule that the base station configures through the high layer signaling, and the time domain resource number and/or the frequency domain resource number and/or the serving cell number to determine the serving cell that needs to be fed back. Or the CSI of the serving cell set is assumed to be the CSI. For example, the UE determines, according to the CSI request field, whether the non-period feedback and the CSI of the serving cell set are fed back, and the UE according to the predefined rule or the received rule that the base station configures through the high layer signaling and the time domain resource number and/or Or the frequency domain resource number and/or the serving cell number determine the set of CSI measurement hypotheses that need to be fed back. For example, if the time domain resource number and/or the frequency domain resource number and/or the serving cell number of the CSI request domain are assumed to be 1, the rule is: 1 is an even number or 1 is an odd number. At this time, the CSI request field is 2 bits, as shown in Table 9 or Table 10: The satisfied rule The value of the CSI request field is described.

1 is an even number '00' does not trigger aperiodic feedback

1 is an even number of non-weeks that trigger CS 11 of the first serving cell

'01'

Feedback

1 is an even number of CS 11 that triggers the set of serving cells

⁴ 10'

Periodic feedback

1 is an even number of CS 11 that triggers the second set of serving cells

'11,

Periodic feedback

1 is odd. Trigger CSI2, CSI3 of the first serving cell.

'00'

Aperiodic feedback

1 is odd, triggering CSI1 of the first serving cell,

'01,

Aperiodic feedback of CSI2, CSI3

1 is an odd number to trigger the service cell set one

'10'

Aperiodic feedback of CSI2, CSI3 1 is an odd number triggering CSI1 of the service cell set one,

'11,

CSI2, aperiodic feedback of CSI3 Table 9 Satisfied rules Numerical value of CSI request field Description

1 is an even number '00' does not trigger aperiodic feedback

1 is an even number of non-weeks that trigger CS 11 of the first serving cell

'or

Feedback

1 is an even number of CS 11 that triggers the set of serving cells

'10,

Periodic feedback

1 is an even number of CS 11 that triggers the second set of serving cells

'11,

Periodic feedback

1 is odd '00' does not trigger aperiodic feedback

1 is odd. Trigger the CSI2, 3 of the first serving cell.

'or

Periodic feedback

1 is an odd number of triggering service cell set one CSI2, 3

'10,

Aperiodic feedback

1 is an odd number of non-periodic feedback of CSI2, 3 that triggers the second set of serving cells

Table ten

With the embodiment, not only the aperiodic feedback when the multi-carrier and the CoMP coexist, but also the overhead of the dynamic signaling is further reduced.

It should be noted that the meanings of the numerical representations of the CSI request fields in the embodiments of the present invention are not limited to those listed above, and the correspondence between the values of the CSI request fields listed in Tables 2 to 10 and the description may also be Exchange with each other. For example, in the second table, '00 is indicated as not triggering aperiodic feedback, and '01 is represented as aperiodic feedback for triggering CSI1, CSI2, and CSI3 of the first serving cell; or '01, not indicating that non-triggering is not triggered. The periodic feedback, '00, is represented as aperiodic feedback of CSI1, CSI2, CSI3 that triggers the first serving cell (as shown in Table 11). Numerical description of the CSI request field

ΌΟ' does not trigger aperiodic feedback

Triggering CSI 1 , CSI 2 of the first serving cell,

ΌΙ'

Aperiodic feedback of CSI 3

Table XI

In this embodiment, the first serving cell includes any one of the following serving cells: a serving cell configured by using fourth high layer signaling, a serving cell that sends the dynamic signaling, and a service that receives aperiodic CSI. a cell and a serving cell indicated by the dynamic signaling. The dynamic signaling includes downlink control information for uplink transmission or a corresponding acknowledgement for random access.

The foregoing set of serving cell set 1 and serving cell set 2 may be a set including different serving cells, for example, the set of serving cells 1 may include ce 111 and ce 112, and the set of serving cells 2 may include ce 113 and cel l4.

FIG. 3 is a flowchart of implementing an aperiodic feedback method for triggering channel state information according to another embodiment of the present invention. The process is detailed as follows:

In step S301, dynamic signaling is sent to the user equipment UE, so that the UE feeds back, according to the dynamic signaling, the first serving cell based on the CSI measurement hypothesis set CSI or the serving cell set based on the CSI measurement set. CSI;

The dynamic signaling is used to indicate a CSI measurement hypothesis set of a first serving cell or a CSI measurement hypothesis set of a serving cell set, where the UE needs to feed back channel state information CSI, where the CSI measurement set includes at least one measurement 4, the one measurement includes at least one measurement reference signal, and the set of serving cells includes at least one serving cell. Further, the implementation further includes: the dynamic signaling includes a CSI request domain, where the CSI request domain includes an N number, and the N is an integer greater than or equal to 1;

The dynamic signaling indicates, by using the CSI request field, a triggering of a CSI that triggers a CSI measurement hypothesis set of the first serving cell or indicates a base of the at least one second serving cell that triggers the set of serving cells. The CSI measures the set of CSIs of the hypothetical set.

Further, the implementation further includes:

The number of bits N of the CSI request field is configured to the UE by using the first higher layer signaling.

Further, the implementation further includes:

Configuring, by the second higher layer signaling, the CSI request field to be used by the UE to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell, or by transmitting a CSI request field or by at least The CSI request field configured for the UE is used to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell:

Frequency domain resource number; and

Service cell number.

Specifically, the UE is configured with a rule by using the high layer signaling, so that the UE determines whether the domain is used to trigger the CSI of the CSI measurement hypothesis set of the first serving cell according to the configured domain, or determines that the number needs to be fed back. The CSI of the serving cell or the set of serving cells measures the assumed CSI.

Further, before the user equipment UE receives the dynamic signaling, the embodiment further includes: sending, by the UE, third higher layer signaling, where the third higher layer signaling includes the second serving cell and the second serving cell The joint measurement of the second measurement hypothesis.

In this embodiment, the dynamic signaling includes downlink control information for uplink transmission or random access corresponding acknowledgement.

FIG. 6 is a flowchart of implementing a method for feeding back channel state information CSI according to another embodiment of the present invention. The process of the method is as follows:

Step 601: Receive dynamic signaling sent by the base station, and determine a first subframe, where the dynamic signaling includes a CSI request domain, where the CSI request domain is used to indicate that the CSI measurement is triggered by the first serving cell. Evaluating the CSI of the set of CSIs and/or indicating the reporting of the CSI based on the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cells, where the first subframe includes a subframe for transmitting the CSI request field or a subframe for transmitting a non-periodicly transmitted physical uplink shared channel PUSCH or a reference resource subframe for acquiring the CSI;

Step 602: Determine, according to a relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement hypothesis of the at least one second serving cell. Collection

Step 603: Perform CSI according to the determined CSI measurement hypothesis set of the first serving cell and/or the CSI measurement hypothesis set of the at least one second serving cell.

Step 604, feeding back the CSI to the base station.

The execution subject performing the above method may be a user equipment.

The above reference resource subframe may be the first n subframes of the subframe carrying the CSI request field.

The user equipment may be configured with a relationship between the first subframe and the configured at least two subframe sets, and a CSI request domain, and a CSI measurement hypothesis set of the first serving cell and/or a CSI of the at least one second serving cell. The correspondence of the hypothesis sets is measured.

In an executable manner, the relationship between the first subframe and the configured at least two subframe sets includes:

The first subframe belongs to one of the at least two subframe sets; or, the first subframe does not belong to any one of the at least two subframe sets.

In an executable manner, the relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, and the CSI measurement hypothesis set of the first serving cell and/or the at least one second serving cell Corresponding relationship between the set of CSI measurements, including at least one of the following correspondences: the first subframe belongs to one of the at least two subframe sets, and corresponds to at least one of the first serving cell CSI measurement hypothesis set;

The first subframe belongs to one of the at least two subframe sets, and corresponds to at least one CSI measurement hypothesis set of the at least one second serving cell; The first subframe does not belong to any one of the at least two subframe sets, and corresponds to at least one CSI measurement hypothesis set of the first serving cell;

The first subframe does not belong to any one of the at least two subframe sets, and corresponds to at least one CSI measurement hypothesis set of the first serving cell.

In an executable manner, the at least two subframe sets include two different subframe sets, where the two different subframe sets include a first subframe set and a second subframe set;

The relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, and the CSI measurement hypothesis set of the first serving cell and/or the CSI measurement hypothesis set of the at least one second serving cell , including:

At least two of the relationships of the first subframe and the two different subframe sets described below correspond to a CSI measurement hypothesis set of the same first serving cell and/or correspond to at least one identical second The correspondence between the CSI measurement hypothesis sets of the serving cell:

The first subframe belongs to the first subframe set, the first subframe belongs to the second subframe set, and the first subframe does not belong to the first subframe set and does not belong to the first subframe. Two subframe sets.

In an executable manner, the at least one second cell belongs to a set of cells.

In an executable manner, the first cell is a primary cell Pcell, and the second cell is a secondary cell Scell.

For example, the base station configures two sets of subframes for the UE to be represented as C1 and C2, and the base station configures six second serving cells and CSI measurement hypothesis sets for the UE, where the first subframe is represented by L and the CSI request domain is 2 bits. Table XI shows: Numerical description of the satisfied rule CSI request field

L belongs to the set C1 '00' does not trigger aperiodic feedback

L belongs to the set C1 second serving cell and CSI measurement hypothesis set

'01 '

Aperiodic feedback

L belongs to the set C1 second serving cell and CSI measurement hypothesis set

' 10'

Acyclic feedback

L belongs to the set C1 second serving cell and the aperiodic feedback of the CSI measurement hypothesis set 3 L belongs to the set C2 '00, does not trigger aperiodic feedback

L belongs to the set C2 second serving cell and CSI measurement hypothesis set

'or

Acyclic feedback

L belongs to the set C2 second serving cell and CSI measurement hypothesis set

'10'

Acyclic feedback

L belongs to the set C2 second serving cell and the aperiodic feedback of the CSI measurement hypothesis set 6

Table XI

For example, the base station configures two subframe sets for the UE to be denoted as C1 and C2, respectively, and the base station configures a CSI measurement hypothesis set of a serving cell for the UE, where the first subframe is represented by L, and the CSI request domain is

2bit, as shown in Table 12:

For example, the base station configures two subframe sets for the UE as C1 and C2, and the base station configures, for the UE, six CSI measurement hypothesis sets of the first serving cell and six second serving cells and CSI measurement hypothesis sets, the first subframe. Indicated by L, the CSI request field is 2 bits, as shown in Table XIII: Satisfied rule CSI request field numerical description

L belongs to the set C1 '00' does not trigger aperiodic feedback

L belongs to the CS I measurement hypothesis set of the first serving cell of the set C1 Acyclic feedback of set 1 and second serving cell and CSI measurement hypothesis set 1

L belongs to the CS I measurement hypothesis set of the set CI first serving cell

'10, 2 and 2nd serving cell and CS I measurement hypothesis feedback of hypothesis set 2

'11' 3 and the second serving cell and CS I measurement hypothesis set 3 acyclic feedback

L belongs to the set C2 does not trigger aperiodic feedback

L belongs to the set C2 CS I measurement hypothesis set of the first serving cell

'or combination 4 and second serving cell and CS I measurement hypothesis set 4 hypothetical feedback

Ί Ο '5 and the second serving cell and CS I measurement hypothetical set 5 hypothetical feedback

L aperiodic feedback of CS I measurement hypothesis set 6 and second serving cell and CS I measurement hypothesis set 6 belonging to set C2 first serving cell

For example, the base station configures two subframe sets for the UE to be denoted as C1 and C2, respectively, and the base station configures the 9 two serving cells and the CSI measurement hypothesis set for the UE, the first subframe is represented by L, and the CSI request domain is bit, for example, fourteen. Shown: Numerical description of the satisfied rule CSI request field

L belongs to the set C1 '00' does not trigger aperiodic feedback

L belongs to the set C1 second serving cell and CSI measurement hypothesis set

Όί'

Aperiodic feedback

L belongs to the set C1 second serving cell and CSI measurement hypothesis set

Ί Ο'

Acyclic feedback

L belongs to the set C1 second serving cell and CSI measurement hypothesis set

'11,

Acyclic feedback

L belongs to the set C2 does not trigger aperiodic feedback

L belongs to the set C2 second serving cell and CSI measurement hypothesis set

'or

Acyclic feedback

L belongs to the set C2 second serving cell and CSI measurement hypothesis set

Ί Ο'

Acyclic feedback

L belongs to set C2 'Ι Γ second serving cell and CSI measurement hypothesis set Acyclic feedback

L does not belong to the set CI or C2 '00, does not trigger aperiodic feedback

L does not belong to the set CI or C2 second serving cell and CSI measurement hypothesis set

'or

Aperiodic feedback

' 10'

Aperiodic feedback

'11,

Aperiodic feedback

Table fourteen

For example, the base station configures two subframe sets for the UE to be denoted as C1 and C2, respectively, and the base station configures a CSI measurement hypothesis set of 9 a serving cell for the UE, where the first subframe is represented by L and the CSI request domain is bit, as shown in Table 10. Five shows:

Table fifteen For example, the base station configures two subframe sets for the UE to be denoted as C1 and C2, respectively, and the base station configures, for the UE, the CSI measurement hypothesis set of the 9 first serving cells and the 9 second serving cells and the CSI measurement hypothesis set, the first subframe. Indicated by L, the CSI request field is 2 bits, as shown in Table 16:

For example, the base station configures two subframes for the UE. The CSI measurement hypothesis set of the first serving cell, the base station configures four second serving cells and CSI measurement hypothesis sets for the UE, the first subframe is represented by L, and the CSI request domain is 2 bits, as shown in FIG.

Table seventeen

For example, the base station configures two sets of subframes for the UE to be denoted as C1 and C2, and the base station configures a CSI measurement hypothesis set of three first serving cells for the UE, and the base station configures six second serving cells and a CSI measurement hypothesis set for the UE, The first subframe is denoted by L, and the CSI request field is 2 bits, as shown in FIG. 18: Numerical description of the satisfied rule CSI request field

L belongs to the set C1 '00, does not trigger aperiodic feedback

L belongs to the set C1 first service cell CS 1 measurement hypothesis set

'01'

Aperiodic feedback

L belongs to the set C1 second serving cell and CSI measurement hypothesis set

'10'

Aperiodic feedback

L belongs to the set C1 second serving cell and CSI measurement hypothesis set

'11,

Acyclic feedback

L belongs to the set C2 '00' does not trigger aperiodic feedback

'or

Acyclic feedback

L belongs to the set C2 second serving cell and CSI measurement hypothesis set

Ί Ο'

Acyclic feedback L belongs to set C2 second serving cell and CSI measurement hypothesis set

Ί ί'

Acyclic feedback

L belongs to the set C2 'ΟΟ' does not trigger aperiodic feedback

L belongs to the set C2 first serving cell CS 1 measurement hypothesis set

'or

Acyclic feedback

L belongs to the set C2 second serving cell and CSI measurement hypothesis set

Ί Ο'

Acyclic feedback

L belongs to the set C2 second serving cell and CSI measurement hypothesis set

'11,

Acyclic feedback of 6

FIG. 7 is a flowchart of implementing a method for feeding back channel state information CSI according to another embodiment of the present invention. The process of the method is as follows:

Step 701: Determine dynamic signaling used to trigger user equipment to feed back CSI.

Step 702: Send the dynamic signaling to the user equipment, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate that the CSI of the first serving cell is triggered by the CSI measurement hypothesis set and/or Or indicating the reporting of the CSI based on the CSI measurement hypothesis set of the at least one second serving cell that triggers the set of serving cells, so that the user equipment determines the first subframe, and according to the first subframe and the configured at least two sub-frames a relationship of the frame set, and the CSI request field determines a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement hypothesis set of the at least one second serving cell, according to the determined CSI measurement hypothesis set of the first serving cell And/or the CSI measurement H of the at least one second serving cell does not measure the CSI, the first subframe includes a subframe that transmits the CSI request domain or a sub-frame for transmitting a non-periodicly transmitted physical uplink shared channel PUSCH a frame or a reference resource subframe for acquiring the CSI;

Step 703: Receive a CSI corresponding to the dynamic signaling sent by the user equipment.

The execution body of the above steps may be a base station.

In an executable manner, a relationship between the first subframe and the configured at least two subframe sets, and a CSI request domain, and a CSI measurement hypothesis set with the first serving cell and/or at least one second service are configured. The CSI measurement of the cell assumes the correspondence of the sets.

In an executable manner, the relationship between the first subframe and the configured at least two subframe sets, include:

The first subframe belongs to one of the at least two subframe sets, and corresponds to at least one CSI measurement hypothesis set of the at least one second serving cell;

The first subframe does not belong to any one of the at least two subframe sets, and corresponds to at least one CSI measurement hypothesis set of the first serving cell;

In an executable manner, the first cell is a primary cell Pcell, and the second cell is a secondary small cell. District Scell.

FIG. 4 shows a component structure of a user equipment according to another embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown.

The user equipment 1 is applicable to each wireless communication system.

The user equipment 1 includes a signaling receiving unit 11 and an information feedback unit 12. Among them, the specific functions of each unit are as follows:

The signaling receiving unit 11 is configured to receive dynamic signaling, where the dynamic signaling is used to indicate that the CSI measurement hypothesis set of the first serving cell or the CSI measurement set of the serving cell set that the UE needs to feed back the channel state information CSI The set, the CSI measurement set includes at least one measurement H, the one measurement hypothesis includes at least one measurement reference signal, and the set of serving cells includes at least one serving cell;

The information feedback unit 12 is configured to feed back, according to the dynamic signaling received by the signaling receiving unit, the CSI of the first serving cell based on the CSI measurement hypothesis set CSI or the serving cell set based on the corresponding channel state information CSI measurement hypothesis.

Further, the dynamic signaling includes a CSI request domain, where the CSI request domain includes the number of bits.

N, the N is an integer greater than or equal to 1;

Further, the user equipment 1 further includes:

The first receiving unit 13 is configured to receive a bit number N of the CSI request field configured by the base station by using the first high layer signaling.

The second receiving unit 14 is configured to receive, by the base station, the CSI request field that is configured by the second high-layer signaling, to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell. The third receiving unit 15 is configured to receive, by the base station, the CSI request field configured by using at least one of the CSI request field or the CSI request field to trigger the CSI measurement hypothesis set of the first serving cell.

Frequency domain resource number; and

Service cell number.

Further, the third receiving unit 15 is specifically configured to: according to a predefined rule or a received rule that the base station configures through high layer signaling, and the time domain resource number and/or the frequency domain resource number and/or the serving cell. The number determines whether the CSI request field is used to trigger CSI of the CSI measurement hypothesis set of the first serving cell, if the time domain resource number and/or the frequency domain resource number and/or the serving cell number meet the predefined rule or base station Passing the CSI request field to trigger the CSI of the CSI measurement hypothesis set of the first serving cell by using the CSI request field; otherwise, the CSI request field is not used to trigger the CSI measurement hypothesis set of the first serving cell CSI.

The CSI request field is used to trigger CSI of a CSI measurement hypothesis set of the first serving cell, where the CSI measurement hypothesis set of the first serving cell is predefined or configured by the high layer signaling.

The set of CSI measurement hypotheses of the set of serving cells includes: at least one second measurement corresponding to the at least one second serving cell;

Before the user equipment UE receives the dynamic signaling, the user equipment 1 further includes: a fourth receiving unit 16, configured to receive third high layer signaling sent by the base station, where the third high layer signaling includes the Joint coding of the second measurement hypothesis corresponding to the second serving cell and the second serving cell.

Preferably, the third higher layer signaling includes X bits, where X is the maximum serving cell number multiplied by a maximum CSI measurement hypothesis, and there is a mapping relationship between the bit, the serving cell, and the CSI measurement hypothesis, where the X Is an integer greater than or equal to 1. Preferably, the third higher layer signaling includes Y bytes, and the Υ is an integer greater than or equal to 1, and each of the bytes corresponds to a joint coding of a serving cell and a CSI measurement hypothesis.

Preferably, the CSI request field includes Μ+Κ bits, and the Μ bits in the Μ+Κ bits are used to indicate that the CSI is triggered by aperiodic feedback and the first serving cell or service for triggering the aperiodic feedback CSI is triggered. a set of cells, where the Κ bits in the Μ+Κ bits are used to indicate a CSI measurement hypothesis set corresponding to the first serving cell or a CSI measurement hypothesis set corresponding to the set of serving cells, where the Μ and Κ are greater than Or an integer equal to 1.

In this embodiment, the dynamic signaling includes a CSI request field and a carrier indication domain CIF, where the CSI request field is used to indicate a first serving cell or a serving cell set that triggers aperiodic feedback CSI, and the carrier indication domain CIF And a CSI measurement hypothesis set corresponding to the first serving cell or a CSI measurement set corresponding to the serving cell set.

The first serving cell includes any one of the following serving cells: a serving cell configured by fourth higher layer signaling, a serving cell that sends the dynamic signaling, a serving cell that receives an aperiodic CSI, and the dynamic message The indicated service cell.

The dynamic signaling includes downlink control information for uplink transmission or a corresponding acknowledgement for random access. . The user equipment provided in this embodiment may use the corresponding non-periodic feedback method of the trigger channel state information in the foregoing. For details, refer to the related description of the corresponding embodiment of the trigger channel state information aperiodic feedback FIG. 2, and details are not described herein again.

FIG. 5 shows the structure of a base station according to another embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown.

The base station can be applied to various wireless communication systems.

The base station 2 includes:

The signaling sending unit 21 is configured to send dynamic signaling to the user equipment UE, so that the UE feeds back, according to the dynamic signaling, the CSI measurement hypothesis set of the CSI or the serving cell set of the first serving cell based on the CSI measurement hypothesis set. CSI;

The dynamic signaling is used to indicate that the UE needs to feed back channel state information CSI. The CSI measurement hypothesis set or the set of CSI measurement hypotheses of the set of serving cells, the CSI measurement set includes at least one measurement, and the one measurement includes at least one measurement reference signal, the service The set of cells includes at least one serving cell.

Further, the dynamic signaling includes a CSI request field, where the CSI request field includes an N number of bits, and the N is an integer greater than or equal to 1;

Further, the base station 2 further includes:

The first sending unit 22 is configured to configure, by using the first higher layer signaling, the number of bits N of the CSI request field to the UE.

The second sending unit 23 is configured to configure, by using the second higher layer signaling, the CSI request field to trigger the reporting of the CSI of the CSI measurement hypothesis set of the first serving cell.

a third sending unit 24, configured to trigger, by using a CSI request field, or by using at least one of the following manners, the CSI request field configured by the UE to trigger CSI of a CSI measurement hypothesis set of the first serving cell Reported:

Frequency domain resource number; and

Service cell number.

Before the user equipment UE receives the dynamic signaling, the base station 2 further includes:

The fourth sending unit 25 is configured to send the third high layer signaling to the UE, where the third high layer signaling includes the joint coding of the second measurement hypothesis corresponding to the second serving cell and the second serving cell.

In this embodiment, the dynamic signaling includes downlink control information or random access for uplink transmission. Enter the corresponding confirmation.

The base station provided by this embodiment may use the corresponding non-periodic feedback method of the trigger channel state information. For details, refer to the related description of the corresponding embodiment of the trigger channel state information aperiodic feedback in FIG. 3, and details are not described herein again.

Fig. 8 shows the composition of a device according to another embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown. The device can be a user device.

The device includes:

The receiving and determining module 801 is configured to receive the dynamic signaling sent by the base station, and determine the first subframe, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate that the CSI measurement is triggered by the first serving cell. Assuming that the CSI of the set is reported and/or indicating that the CSI of the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cells is triggered, the first subframe includes a subframe for transmitting the CSI request field or a subframe for transmitting a non-periodicly transmitted physical uplink shared channel PUSCH or a reference resource subframe for acquiring the CSI;

The second determining module 802 is configured to determine, according to the relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, determine a CSI measurement hypothesis set of the first serving cell and/or at least one second service. a set of CSI measurement hypotheses for the cell;

The measurement obtaining module 803 is configured to measure CSI according to the determined CSI measurement hypothesis set of the first serving cell and/or the CSI measurement hypothesis set of the at least one second serving cell;

The sending module 804 is configured to feed back the CSI to the base station.

The device may further include:

a configuration module, configured to configure a relationship between the first subframe and the configured at least two subframe sets, and a CSI request domain, and a CSI measurement hypothesis set of the first serving cell and/or at least one second serving cell The CSI measures 4 sets the correspondence of sets.

The first subframe belongs to one of the at least two subframe sets; or The first subframe does not belong to any one of the at least two subframe sets. In an executable manner, the relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, and the CSI measurement hypothesis set of the first serving cell and/or the at least one second serving cell Corresponding relationship of the set of CSI measurements, including at least one of the following correspondences: the first subframe belongs to one of the at least two subframe sets, corresponding to at least one of the first serving cells a set of CSI measurement hypotheses;

FIG. 9 is a block diagram showing the structure of a device according to another embodiment of the present invention. Portions relating to embodiments of the invention are shown. The device can be a user device. The device includes: a receiver 901, configured to receive dynamic signaling sent by a base station, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate that CSI based on a CSI measurement hypothesis set of the first serving cell is triggered. Evaluating and/or indicating the reporting of the CSI based on the CSI measurement hypothesis set of the at least one second serving cell that triggers the set of serving cells;

The processor 902 is configured to determine a first subframe, and determine, according to a relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, a CSI measurement hypothesis set of the first serving cell, and/or a CSI measurement hypothesis set of at least one second serving cell, the first subframe comprising a subframe for transmitting the CSI request domain or a subframe for transmitting a non-periodic transmitted physical uplink shared channel PUSCH or for acquiring the Reference resource subframe of CSI;

The receiver 901 is further configured to receive, according to the determined CSI measurement hypothesis set of the first serving cell and/or the CSI measurement hypothesis set of the at least one second serving cell, a signal for measuring CSI; the processor 902, For obtaining a CSI according to the signal used for measuring CSI;

The transmitter 903 is configured to feed back the CSI to the base station.

Fig. 10 shows the composition of a device according to another embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown. The device can be a base station.

The device includes:

The determining module 1001 is configured to determine dynamic signaling for triggering the user equipment to feed back CSI, and the sending module 1002 is configured to send the dynamic signaling determined by the determining module to the user equipment, where the dynamic signaling includes a CSI request domain. The CSI request field is used to indicate that the CSI of the CSI measurement hypothesis set that triggers the first serving cell is reported and/or the CSI of the CSI measurement hypothesis set that triggers the at least one second serving cell of the serving cell set is reported, So that the user equipment determines the first subframe, and according to the relationship between the first subframe and the configured at least two subframe sets, and the

The CSI request field determines a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement hypothesis set of the at least one second serving cell, according to the determined CSI measurement hypothesis set of the first serving cell and/or at least one second service The CSI measurement of the cell assumes that the set measurement obtains CSI, and the first subframe packet a subframe of the PUSCH or a reference resource subframe for acquiring the CSI;

The receiving module 1003 is configured to receive a CSI corresponding to the dynamic signaling sent by the user equipment. The device can also include:

The configuration module 1004 is configured to configure a relationship between the first subframe and the configured at least two subframe sets, and a CSI request domain, and a CSI measurement hypothesis set with the first serving cell and/or at least one second serving cell. The CSI measurement assumes the correspondence of the sets.

The relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, and the CSI measurement hypothesis set of the first serving cell and/or the CSI measurement hypothesis of the at least one second serving cell The correspondence of the collection, including:

Fig. 11 shows the structure of a device according to another embodiment of the present invention, and for convenience of explanation, only parts related to the embodiment of the present invention are shown. The device can be a base station.

The device includes:

The processor 1101 is configured to determine dynamic signaling used to trigger user equipment to feed back CSI.

The transmitter 1102 is configured to send the dynamic signaling that is determined by the determining module to the user equipment, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate a CSI measurement hypothesis that triggers the first serving cell. Evaluating the CSI of the set and/or indicating the reporting of the CSI based on the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cells, so that the user equipment determines the first subframe, and according to the first sub a relationship between the frame and the configured at least two subframe sets, and the CSI request field determines a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement hypothesis set of the at least one second serving cell, according to the determined first The CSI measurement hypothesis set of the serving cell and/or the CSI measurement hypothesis set of the at least one second serving cell measures CSI, the first subframe includes a subframe for transmitting the CSI request domain or a medium for transmitting aperiodic transmission a subframe of the uplink shared channel PUSCH or a reference resource subframe for acquiring the CSI;

The receiver 1103 is configured to receive CSI corresponding to the dynamic signaling sent by the user equipment. For other functions of the apparatus in the embodiment corresponding to Figures 8-11, reference may be made to the foregoing method embodiments. A person skilled in the art can understand that each unit included in the user equipment embodiment and the base station embodiment is only divided according to functional logic, but is not limited to the foregoing division, as long as the corresponding functions can be implemented; The specific names of the functional units are also for convenience of distinguishing from each other and are not intended to limit the scope of protection of the present application.

In summary, the embodiments of the present invention solve the problem of triggering aperiodic feedback based on multiple CSI measurement hypotheses in a CoMP system, and triggering aperiodic feedback based on multiple CSI measurement hypotheses in a system in which multi-carrier and CoMP coexist. And lower feedback overhead.

The data caching method in the multi-node system provided by the embodiment of the present invention may be completed in whole or in part by hardware related to program instructions. For example, it can be done by computer running. The program can be stored in a readable storage medium such as a random access memory, a magnetic disk, an optical disk, or the like.

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

Claim

A method for triggering aperiodic feedback of channel state information, the method comprising: a user equipment UE receiving dynamic signaling, where the dynamic signaling is used to indicate that the UE needs to feed back channel state information CSI a CSI measurement hypothesis set of a serving cell, or a CSI measurement hypothesis set of a set of serving cells, the CSI measurement hypothesis set including at least one measurement hypothesis, the one measurement hypothesis including at least one measurement reference signal, the serving cell set including at least one Serving a cell; feeding back, according to the dynamic signaling, a CSI based on a CSI measurement hypothesis set of a CSI or a set of serving cells of the first serving cell based on a CSI measurement hypothesis set.

2. The method according to claim 1, wherein the dynamic signaling includes a CSI request field, where the CSI request field includes an N number, and the N is an integer greater than or equal to 1;

3. The method of claim 2, wherein the method further comprises:

And receiving a number N of bits of the CSI request field configured by the base station by using the first high layer signaling.

4. The method of claim 2, wherein the method further comprises:

The CSI request field configured by the receiving base station through the second high layer signaling is used to trigger the CSI measurement of the first serving cell.

The method of claim 2, wherein the method further comprises:

The receiving base station triggers reporting of CSI of the CSI measurement hypothesis set of the first serving cell by transmitting a CSI request field or by using the CSI request field configured by at least one of the following manners:

Transmitting a time domain resource number of a physical layer uplink shared channel PUSCH carrying a non-periodic feedback CSI; Frequency domain resource number; and

Service cell number.

6. The method of claim 1 wherein:

The method according to claim 6, wherein the third higher layer signaling includes X bits, the X is a maximum serving cell number multiplied by a maximum CSI measurement hypothesis number, the bit, a serving cell, and There is a mapping relationship between the CSI measurement hypotheses, and the X is an integer greater than or equal to 1.

8. The method according to claim 6, wherein the third higher layer signaling comprises Y bytes, and the Y is an integer greater than or equal to 1.

9. The method of claim 8 wherein each of said bytes corresponds to a joint coding of a service cell and a CSI measurement hypothesis.

The method according to claim 2, wherein the CSI request field includes M+K bits, and the M bits in the M+K bits are used to indicate that the CSI is triggered by aperiodic feedback and is used to indicate a first serving cell or a set of serving cells that triggers aperiodic feedback CSI, where K bits in the M+K bits are used to indicate a CSI measurement hypothesis set corresponding to the first serving cell or corresponding to the serving cell set The CSI measures a hypothesis set, and the M and K are integers greater than or equal to one.

The method according to claim 1, wherein the dynamic signaling includes a CSI request field and a carrier indication field CIF, where the CSI request field is used to indicate a first serving cell or service that triggers aperiodic feedback CSI. And a CSI measurement set corresponding to the first serving cell or a CSI measurement set corresponding to the set of serving cells.

The method according to any one of claims 1 to 11, wherein the first serving cell comprises any one of the following serving cells: a serving cell and a sending station configured by using fourth higher layer signaling Description a serving cell of dynamic signaling, a serving cell receiving an aperiodic CSI, and a serving cell indicated by the dynamic signaling.

The method according to any one of claims 1 to 11, wherein the dynamic signaling includes downlink control information or random access response confirmation for uplink transmission.

The method according to any one of claims 2 to 13, wherein the partial status of the CSI request field is represented by at least one of a transmission time domain resource number, a frequency domain resource number, and a serving cell number; Or,

The partial status of the CSI request field is represented by at least one of the following resources for transmitting a physical layer uplink shared channel PUSCH carrying aperiodic feedback content: a time domain resource number, a frequency domain resource number, and a monthly service cell number.

The method according to any one of claims 1 to 14, wherein the method further comprises: the UE according to a predefined rule or according to a rule configured by the received base station to pass the fifth high layer signaling, And determining, according to at least one of the time domain resource number, the frequency domain resource number, and the serving cell number, a CSI of the CSI measurement hypothesis set of the first serving cell that needs to be fed back, or a CSI measurement of the serving cell set, and a CSI that is not set. .

The method according to claim 15, wherein the predefined rules or the rules configured by the fifth high layer signaling include:

At least one of the time domain resource number, the frequency domain resource number, and the serving cell number of the transmission CSI request field is even or odd.

17. A method for triggering aperiodic feedback of channel state information, the method comprising:

Transmitting the dynamic signaling to the user equipment UE, so that the UE feeds back the CSI of the CSI measurement hypothesis set based on the CSI measurement hypothesis set of the first serving cell according to the CSI measurement hypothesis set CSI;

The CSI measurement hypothesis set of the CSI measurement hypothesis set of the first serving cell or the CSI measurement hypothesis set of the serving cell set, where the dynamic signaling is used to indicate that the UE needs to feed back channel state information CSI, the CSI measurement The set of settings includes at least one measurement, the one measurement includes at least one measurement reference signal, and the set of serving cells includes at least one serving cell.

The method of claim 17, wherein the dynamic signaling includes a CSI request field, the CSI request field includes an integer number of N, and the N is an integer greater than or equal to 1; The CSI measurement hypothesis set of the first serving cell that indicates that the UE needs to feed back the channel state information CSI or the CSI measurement hypothesis set of the serving cell set includes:

The method according to claim 18, wherein the method further comprises: configuring, by the first higher layer signaling, the number of bits N of the CSI request field to the UE.

The method of claim 18, wherein the method further comprises: configuring, by the second higher layer signaling, the CSI request field to the UE to trigger CSI measurement of the first serving cell. Set up the CSI of the collection.

The method according to claim 18, wherein the method further comprises: using the CSI request field or the CSI request field configured by the UE by using at least one of the following manners for triggering a Reporting the CSI of the CSI measurement hypothesis set of the first serving cell: transmitting the time domain resource number of the physical layer uplink shared channel PUSCH carrying the CSI of the aperiodic feedback;

Frequency domain resource number; and

Service cell number.

The method according to any one of claims 17 to 21, wherein before the user equipment UE receives the dynamic signaling, the method further includes:

Transmitting, by the UE, third higher layer signaling, where the third higher layer signaling includes joint coding of the second measurement hypothesis corresponding to the second serving cell and the second serving cell.

The method according to any one of claims 17 to 22, wherein the dynamic signaling packet The downlink control information for uplink transmission or the corresponding confirmation of random access.

24. The method of claim 18, wherein

The partial status of the CSI request field is represented by at least one of a transmission time domain resource number, a frequency domain resource number, and a service cell number; or

The partial status of the CSI request field is represented by at least one of the following resources for transmitting a physical layer uplink shared channel PUSCH carrying aperiodic feedback content: a time domain resource number, a frequency domain resource number, and a serving cell number.

25. A user equipment, wherein the user equipment comprises:

The user equipment according to claim 25, wherein the dynamic signaling includes a CSI request field, where the CSI request field includes an N number of bits, and the N is an integer greater than or equal to 1; The CSI measurement hypothesis set of the first serving cell or the CSI measurement hypothesis set of the serving cell set, where the dynamic signaling is used to indicate that the UE needs to feed back the channel state information CSI, includes:

The user equipment according to claim 26, wherein the user equipment further comprises: a first receiving unit, configured to receive a number N of bits of the CSI request field configured by the base station by using the first high layer signaling.

The user equipment according to claim 26, wherein the user equipment further comprises: a second receiving unit, configured to receive, by the base station, the CSI request field configured by using the second high layer signaling, to trigger the The CSI measurement of the first serving cell assumes a report of the CSI of the set.

The user equipment according to claim 26, wherein the user equipment further comprises: a third receiving unit, configured to receive, by the base station, by transmitting a CSI request field or by configuring at least one of the following manners The CSI request field is used to trigger the CSI of the CSI measurement hypothesis set of the first serving cell

Frequency domain resource number; and

Service cell number.

The user equipment according to claim 25, wherein the CSI measurement hypothesis set of the serving cell set comprises: at least one second measurement hypothesis corresponding to the at least one second serving cell;

Before the user equipment UE receives the dynamic signaling, the user equipment further includes:

And a fourth receiving unit, configured to receive third high-level signaling sent by the base station, where the third high-level signaling includes joint coding of the second measurement hypothesis corresponding to the second serving cell and the second serving cell.

The user equipment according to claim 30, wherein the third higher layer signaling includes X bits, and the X is a maximum serving cell number multiplied by a maximum CSI measurement hypothesis number, the bit, a serving cell And there is a mapping relationship between the CSI measurement hypotheses, and the X is an integer greater than or equal to 1.

The user equipment according to claim 30, wherein the third higher layer signaling comprises Y bytes, and the Y is an integer greater than or equal to 1.

33. The user equipment of claim 32, wherein each of the bytes corresponds to a joint coding of a serving cell and a CSI measurement hypothesis.

The user equipment according to claim 26, wherein: the CSI request field includes M+K bits, and M bits of the M+K bits are used to indicate that triggering aperiodic feedback of the CSI and a first serving cell or a serving cell set for indicating a non-periodic feedback CSI, where the K bit in the M+K bit is used to indicate a CSI measurement hypothesis set corresponding to the first serving cell or to the serving cell The set of corresponding CSI measurement hypotheses is set, and the M and K are integers greater than or equal to 1.

The user equipment according to claim 25, wherein the dynamic signaling includes a CSI request field and a carrier indication field CIF, where the CSI request field is used to indicate a first serving cell that triggers aperiodic feedback CSI or The serving cell set, the carrier indication field CIF is used to indicate a CSI measurement hypothesis set corresponding to the first serving cell or a CSI measurement hypothesis set corresponding to the serving cell set.

The user equipment according to any one of claims 25 to 35, wherein the first serving cell comprises any one of the following serving cells: a serving cell configured by using fourth higher layer signaling, and sending The serving cell of the dynamic signaling, the serving cell receiving the aperiodic CSI, and the serving cell indicated by the dynamic signaling.

The user equipment according to any one of claims 25 to 35, wherein the dynamic signaling includes downlink control information for uplink transmission or a corresponding confirmation of random access.

38. The user equipment of any of claims 26-37, wherein

39. A base station, where the base station includes:

The base station according to claim 39, wherein the dynamic signaling includes a CSI request field, where the CSI request field includes an integer number N, and the N is an integer greater than or equal to 1; The CSI measurement hypothesis set of the first serving cell that indicates that the UE needs to feed back the channel state information CSI or the CSI measurement hypothesis set of the serving cell set includes:

The base station according to claim 40, wherein the base station further comprises: a first sending unit, configured to configure, by using the first higher layer signaling, the number of bits N of the CSI request field to the UE.

The base station according to claim 40, wherein the base station further includes: a second sending unit, configured to configure, by using the second higher layer signaling, the CSI request field to trigger the first The CSI measurement of a serving cell assumes a report of the CSI of the set.

The base station according to claim 40, wherein the base station further comprises: a third sending unit, configured to configure the UE by transmitting a CSI request field or by using at least one of the following manners The CSI request field is used to trigger the CSI of the CSI measurement hypothesis set of the first serving cell

Frequency domain resource number; and

Service cell number.

The base station according to claim 39, wherein before the user equipment UE receives the dynamic signaling, the base station further includes:

a fourth sending unit, configured to send third high layer signaling to the UE, where the third high layer signaling includes Joint coding of the second measurement hypothesis corresponding to the second serving cell and the second serving cell.

The base station according to any one of claims 39 to 44, wherein the dynamic signaling includes downlink control information for uplink transmission or a corresponding confirmation of random access.

A wireless communication system, characterized in that the wireless communication system comprises the user equipment according to any one of claims 25 to 38 and/or the base station according to any one of 39 to 45.

47. A method for feeding back channel state information CSI, characterized in that

Receiving the dynamic signaling sent by the base station, and determining the first subframe, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate that the CSI of the CSI measurement hypothesis set that triggers the first serving cell is reported and/or Or the first subframe in which the CSI based on the CSI measurement H is not set to trigger the at least one second serving cell that triggers the set of serving cells includes the subframe in which the CSI request domain is transmitted or the physical uplink used to transmit the aperiodic transmission a subframe of the shared channel PUSCH or a reference resource subframe for acquiring the CSI;

And determining, according to the relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement hypothesis set of the at least one second serving cell;

Determining the CSI according to the determined CSI measurement hypothesis set of the first serving cell and/or the CSI measurement set of the at least one second serving cell;

The CSI is fed back to the base station.

The method of claim 47, wherein the method further comprises:

Configuring a relationship between the first subframe and the configured at least two subframe sets, and a CSI request domain, and a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement of the at least one second serving cell The correspondence of the collection.

49. The method of claim 47 or 48, wherein

The relationship between the first subframe and the configured at least two subframe sets includes:

The method according to claim 49, wherein the relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, and the CSI measurement hypothesis set with the first serving cell and/or Or a correspondence between the CSI measurement hypothesis sets of the at least one second serving cell, including at least one of the following correspondences:

The first subframe belongs to one of the at least two subframe sets, and corresponds to at least one CSI measurement hypothesis set of the first serving cell;

The method according to any one of claims 48-50, wherein the at least two subframe sets comprise two different subframe sets, and the two different subframe sets include a first subframe. a set of frames and a second set of subframes;

52. The method of any of claims 47-51, wherein

The at least one second cell belongs to a set of cells.

53. A method according to any of claims 47-52, characterized in that The first cell is a primary cell Pcell, and the second cell is a secondary cell Scell.

54. A method for feeding back channel state information CSI, characterized in that

Determining dynamic signaling for triggering user equipment feedback CSI;

Sending the dynamic signaling to the user equipment, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate that the CSI of the CSI measurement hypothesis set triggering the reporting and/or indication trigger of the first serving cell is triggered. The reporting of the CSI based on the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cells, so that the user equipment determines the first subframe, and according to the first subframe and the configured at least two subframes a relationship, and the CSI request field determines a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement hypothesis set of the at least one second serving cell, according to the determined CSI measurement hypothesis set of the first serving cell and/or The CSI measurement hypothesis set measurement of the at least one second serving cell includes CSI, and the first subframe includes a subframe for transmitting the CSI request domain or a subframe for transmitting a non-periodic transmitted physical uplink shared channel PUSCH or for Obtaining a reference resource subframe of the CSI;

Receiving, by the user equipment, a CSI corresponding to the dynamic signaling.

55. The method of claim 54 wherein:

56. The method of claim 54 or 55, wherein

57. The method of claim 56, wherein

The relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, and the CSI measurement hypothesis set of the first serving cell and/or the CSI measurement hypothesis set of the at least one second serving cell , including at least one of the following correspondences: The first subframe belongs to one of the at least two subframe sets, and corresponds to at least one CSI measurement hypothesis set of the first serving cell;

The method according to any one of claims 55-57, wherein the at least two subframe sets comprise two different subframe sets, and the two different subframe sets comprise a first subframe. a set of frames and a second set of subframes;

59. The method of any of claims 54-58, wherein

The at least one second cell belongs to a set of cells.

60. The method of any of claims 54-59, wherein

The first cell is a primary cell Pcell, and the second cell is a secondary cell Scell.

61. A device, comprising:

a receiving and determining module, configured to receive dynamic signaling sent by the base station, and determine a first subframe, where the dynamic signaling includes a CSI request domain, where the CSI request domain is used to indicate that the first serving cell is triggered The CSI measurement assumes that the CSI of the set is reported and/or indicates that the CSI of the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cells is triggered, the first subframe includes a subframe that transmits the CSI request field. Or a subframe for transmitting a non-periodicly transmitted physical uplink shared channel PUSCH or a reference resource subframe for acquiring the CSI;

a second determining module, configured to determine, according to the relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, determine a CSI measurement hypothesis set of the first serving cell and/or at least one second serving cell a set of CSI measurement hypotheses;

a measurement obtaining module, configured to determine a set of CSI measurement hypotheses according to the determined first serving cell

/ or at least one second serving cell CSI measurement hypothesis set measurement CSI;

And a sending module, configured to feed back the CSI to the base station.

The device of claim 61, wherein the device further comprises: a configuration module, configured to configure a relationship between the first subframe and the configured at least two subframe sets, and a CSI request domain, And a correspondence relationship with a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement set of the at least one second serving cell.

63. Apparatus according to claim 61 or claim 62 wherein:

The device according to claim 63, wherein a relationship between the first subframe and the configured at least two subframe sets, a CSI request domain, and a CSI measurement hypothesis set with the first serving cell and/or Or a correspondence between the CSI measurement hypothesis sets of the at least one second serving cell, including at least one of the following correspondences:

65. The apparatus according to any one of claims 62-64, wherein the at least two subframe sets comprise two different subframe sets, and the two different subframe sets include a first subframe. a set of frames and a second set of subframes;

66. Apparatus according to any of claims 61-65, wherein:

The at least one second cell belongs to a set of cells.

67. Apparatus according to any of claims 61-66, wherein

68. A device, comprising:

a receiver, configured to receive the dynamic signaling sent by the base station, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate a CSI reporting and/or indication that triggers the CSI measurement hypothesis set of the first serving cell. And triggering reporting of the CSI based on the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cells;

a processor, configured to determine a first subframe, and determine a CSI measurement hypothesis set of the first serving cell according to a relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain a CSI measurement hypothesis set of at least one second serving cell, the first subframe comprising a subframe for transmitting the CSI request domain or a subframe for transmitting a non-periodic transmitted physical uplink shared channel PUSCH or for acquiring a reference resource subframe of the CSI;

The receiver is further configured to receive, according to the determined CSI measurement hypothesis set of the first serving cell and/or the CSI measurement hypothesis set of the at least one second serving cell, a signal for measuring CSI;

The processor is configured to obtain CSI according to the signal used for measuring CSI;

And a transmitter, configured to feed back the CSI to the base station.

69. A device, comprising:

a determining module, configured to determine dynamic signaling used to trigger user equipment feedback CSI;

a sending module, configured to send the dynamic signaling that is determined by the determining module to the user equipment, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate a CSI measurement hypothesis set that triggers the first serving cell Reporting of the CSI and/or indicating the reporting of the CSI based on the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cells, so that the user equipment determines the first subframe, and according to the first subframe a relationship with the configured at least two subframe sets, and the CSI request field determines a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement hypothesis set of the at least one second serving cell, according to the determined first service The CSI measurement hypothesis set of the cell and/or the CSI measurement hypothesis set of the at least one second serving cell measures CSI, the first subframe includes a subframe for transmitting the CSI request domain or a physical uplink for transmitting aperiodic transmission a subframe of the shared channel PUSCH or a reference resource subframe for acquiring the CSI;

And a receiving module, configured to receive a CSI corresponding to the dynamic signaling sent by the user equipment.

70. The device of claim 69, further comprising:

71. Apparatus according to claim 69 or claim 70 wherein:

The relationship between the first subframe and the configured at least two subframe sets includes: The first subframe belongs to one of the at least two subframe sets; or, the first subframe does not belong to any one of the at least two subframe sets.

72. Apparatus according to claim 70 wherein:

The relationship between the first subframe and the configured at least two subframe sets, and the CSI request domain, and the CSI measurement hypothesis set of the first serving cell and/or the CSI measurement hypothesis set of the at least one second serving cell , including at least one of the following correspondences:

The apparatus according to any one of claims 70-72, wherein the at least two subframe sets comprise two different subframe sets, and the two different subframe sets include a first subframe. a set of frames and a second set of subframes;

74. Apparatus according to any of claims 69-73, wherein: The at least one second cell belongs to a set of cells.

75. Apparatus according to any of claims 69-74, wherein:

76. A device, comprising:

a processor, configured to determine dynamic signaling used to trigger user equipment feedback CSI;

And a transmitter, configured to send the dynamic signaling that is determined by the determining module to the user equipment, where the dynamic signaling includes a CSI request field, where the CSI request field is used to indicate a CSI measurement hypothesis set that triggers the first serving cell Reporting of the CSI and/or indicating the reporting of the CSI based on the CSI measurement hypothesis set of the at least one second serving cell of the set of serving cells, so that the user equipment determines the first subframe, and according to the first subframe a relationship with the configured at least two subframe sets, and the CSI request field determines a CSI measurement hypothesis set of the first serving cell and/or a CSI measurement hypothesis set of the at least one second serving cell, according to the determined first service The CSI measurement hypothesis set of the cell and/or the CSI measurement hypothesis set of the at least one second serving cell measures CSI, the first subframe includes a subframe for transmitting the CSI request domain or a physical uplink for transmitting aperiodic transmission a subframe of the shared channel PUSCH or a reference resource subframe for acquiring the CSI;

And a receiver, configured to receive a CSI corresponding to the dynamic signaling sent by the user equipment.