CN104105129B

CN104105129B - Aperiodic CSI report method and user equipment in LTE system

Info

Publication number: CN104105129B
Application number: CN201310127372.6A
Authority: CN
Inventors: 李迎阳; 孙程君
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2013-04-12
Filing date: 2013-04-12
Publication date: 2019-02-05
Anticipated expiration: 2033-04-12
Also published as: CN109862588A; CN104105129A

Abstract

This application discloses the aperiodic CSI report methods and user equipment in a kind of LTE system, wherein this method comprises: UE receives more subframe scheduling uplink authorization signalings that base station is sent；When more subframe scheduling uplink authorization signalings indicate the aperiodic CSI report of base station triggers, UE selects one or more sub-frame of uplink for reporting aperiodic CSI from the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings；UE obtains the reference resources for each CSI process that the aperiodic CSI report triggered includes, and the aperiodic CSI of the CSI process is measured according to the reference resources of each CSI process；UE sends the aperiodic CSI of measurement in one or more sub-frame of uplink of selection.Using the application, the aperiodic CSI report of triggering UE can be realized in the LTE system for using more subframe scheduling technologies, and, the influence to PUSCH transmission is reduced, the influence to period CSI report is reduced, to ensure that the performance of uplink and downlink data transmission.

Description

Aperiodic CSI report method and user equipment in LTE system

Technical field

This application involves wireless communication technology field, in particular to aperiodic CSI report method in a kind of LTE system and User equipment (User Equipment, UE).

Background technique

In 3GPP(3rd Generation Partnership Project, third generation partner program) LTE(Long Term Evolution, long term evolution) in system, the length of each radio frames is 10ms, is divided into 10 subframes.One transmission Time interval (Transmission Time Interval, TTI) is just defined in a subframe.Each subframe includes two Time slot, for general cyclic prefix (Cyclic Prefix, CP) length, each time slot includes 7 OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol；For extending CP length For, each time slot includes 6 OFDM symbols.The granularity of resource allocation is Physical Resource Block (Physical Resource Block, PRB), a PRB includes 12 continuous subcarriers in frequency, corresponds to a time slot in time.One subframe Two PRB in two time slots in interior same sub-carrier are known as a PRB pair.In each PRB pair, each resource unit (Resource Element, RE) is the minimum unit of running time-frequency resource, i.e., is a subcarrier in frequency, is one on the time OFDM symbol.

The preceding n OFDM symbol of each downlink subframe can be used for transmitting Downlink Control Information, and Downlink Control Information includes Physical Downlink Control Channel (Physical Downlink Contol Channel, PDCCH) and other control information, wherein n Equal to 0,1,2,3 or 4；Remaining OFDM symbol can be used to transmit PDSCH(Physical Downlink Shared Channel, Physical Downlink Shared Channel) or enhancing PDCCH(EPDCCH).In LTE system, PDCCH is in carrying distribution The Downlink Control Information (Downlink Control Information, DCI) of row channel resource or down channel resources, point It is also known as downstream grants signaling and uplink authorization signaling.The authorization signaling of different UE is independently sent, and downstream grants Signaling and uplink authorization signaling are independently sent.Except TDD(Time Division Duplexing, time division duplex) system Other than the transmitting uplink data of the uplink-downlink configuration 0 of system, the authorization signaling in each downlink subframe is only dispatched in a subframe Downlink or uplink.To the transmitting uplink data of the uplink-downlink configuration 0 of TDD system, because sub-frame of uplink number is more than downlink Number of sub frames, so being to support most in a downlink subframe while dispatching the transmitting uplink data in two sub-frame of uplink.

In LTE system, the instruction of support aperiodic report channel status (Channel State Information, CSI), that is, aperiodic CSI report.Aperiodic CSI report is exactly by sending uplink authorization signaling, on one specifically PUSCH(Physical Uplink Shared Channel, Physical Uplink Shared Channel are distributed in row subframe), and awarded with uplink The CSI request domain in signaling is weighed to indicate what UE needs transmission CSI information or UE while sending upstream data were dispatched PUSCH information can also be entirely used for transmission CSI(and be alternatively referred to as CSI information).In existing LTE version, each uplink authorization Signaling only triggers the CSI report in a sub-frame of uplink.CSI request domain can be 1 bit or two bits, separately below It is described.

If CSI request domain is 1 bit, for downlink transfer mode 1~9(TM1~9), when CSI request domain sets 1 It is used to indicate the CSI information of triggering report services cell c, serving cell c is the serving cell where PUSCH transmission；For TM10, CSI request domain are used to indicate the CSI information of one group of CSI process of triggering report services cell c when setting 1, wherein triggering The CSI process of serving cell c be: it is as shown in Table 2 when CSI request domain is 2 bit for the high-level signaling of code word ' 01 ' One group of CSI process of the serving cell c of configuration.

It is all the case where configuring TM1~9, according to table 1 for all serving cells if CSI request domain is 2 bits To determine that each code word is used to indicate the CSI report of triggering；The case where TM10 is configured at least one serving cell, according to Table 2 determines that each code word is used to indicate the CSI report of triggering.For a serving cell, if UE configuration uses TM1~9, Then the CSI process in table 2 just refers to the aperiodic CSI report that this UE is configured on this serving cell.According to existing fixed Justice, the CSI for including during first group and second group of CSI of the high-rise configuration in table 2 cross number of passes and are no more than 5.

Table 1CSI requests domain

The value in CSI request domain	Description
		00	Aperiodic CSI report is not triggered
01	Trigger the aperiodic CSI report of serving cell c
		10	The aperiodic CSI report of first group of serving cell of the high-rise configuration of triggering
11	The aperiodic CSI report of second group of serving cell of the high-rise configuration of triggering

Table 2CSI requests domain

According to existing LTE standard, the serving cell of multiple CSI processes is configured with for one, when UE is received as fixed in table 2 When the CSI request domain for being used to trigger aperiodic CSI report of justice, because the ability that UE calculates CSI information is limited, UE can not be more This new serving cell removes max (N_x-N_u, 0) and the CSI information of other CSI processes other than the smallest CSI process of a index, this In, it is assumed that N_uIndicate the aperiodic CSI process currently having not been completed, and this N_uA aperiodic CSI process is UE to this service Cell indicates the aperiodic CSI process triggered with other aperiodic CSI.Remember N_CSI-PFor for this serving cell, UE energy Enough the maximum CSI of CSI report is supported to cross number of passes, then for FDD(Frequency Division Duplexing, frequency division is double Work), N_x=N_CSI-P；For TDD, if this serving cell of UE is configured with 4 CSI processes, N_x=N_CSI-P；For TDD, If this serving cell of UE is configured with 2 or 3 CSI processes, N_x=3.

In the follow-up study of LTE, more subframe scheduling technologies are received more and more attention.As shown in Figure 1, for uplink More subframe schedulings, the uplink authorization signaling of a downlink subframe can dispatch the upstream data in one or more sub-frame of uplink Transmission.By using more subframe scheduling technologies, the resource overhead of scheduling instruction can be saved；In addition, some special subframes because Uplink scheduling order is sent for no enough resources, when causing sub-frame of uplink corresponding with the downlink subframe that can not dispatch, is led to It crosses using more subframe scheduling technologies, also can be good at solving the problems, such as this.As a special case, the uplink of more subframe schedulings is awarded Power signaling actually can only dispatch the transmitting uplink data in a sub-frame of uplink, and this timing relationship is existing different from LTE There is the timing relationship in system.

But because of the introducing of more subframe scheduling technologies, the timed-shutoff of the uplink authorization signaling of more subframe schedulings to PUSCH System is changed, and therefore, the mechanism of the aperiodic CSI report of the above-mentioned triggering UE of the prior art is no longer applicable in.

Summary of the invention

This application provides the aperiodic CSI report methods and user equipment in a kind of LTE system, to solve the prior art The mechanism of aperiodic CSI report of above-mentioned triggering UE be no longer desirable for asking using the LTE system of more subframe scheduling technologies Topic.

The technical solution of the application is as follows:

On the one hand, a kind of aperiodic CSI report method in LTE system is provided, LTE system applies more subframe schedulings Technology, this method comprises:

UE receives more subframe scheduling uplink authorization signalings that base station is sent；

When more subframe scheduling uplink authorization signalings indicate the aperiodic CSI report of base station triggers, UE is from more subframe tune It spends in the sub-frame of uplink of uplink authorization signaling current scheduling, selects one or more sub-frame of uplink for reporting aperiodic CSI；

UE obtains the reference resources for each CSI process that the aperiodic CSI report triggered includes, according to each CSI The reference resources of process measure the aperiodic CSI of the CSI process；

UE sends the aperiodic CSI of measurement in one or more sub-frame of uplink of selection.

On the other hand, the UE in a kind of LTE system is additionally provided, LTE system applies more subframe scheduling technologies, UE packet It includes:

Receiving module, the more subframe scheduling uplink authorization signalings sent for receiving base station；

Selecting module, more subframe scheduling uplink authorization signalings for receiving when receiving module indicate base station triggers When aperiodic CSI report, from the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings, one or more is selected Sub-frame of uplink is for reporting aperiodic CSI；

Module is obtained, the reference resources for each CSI process that the aperiodic CSI report for obtaining triggering includes；

Measurement module, for measuring the CSI mistake according to the reference resources for obtaining each CSI process that module is got The aperiodic CSI of journey；

Sending module, for sending measurement module measurement in one or more sub-frame of uplink that selecting module selects Aperiodic CSI.

Using the technical solution of the application, triggering UE can be realized in the LTE system for using more subframe scheduling technologies Aperiodic CSI report reduce the influence to period CSI report moreover, reducing the influence to PUSCH transmission, to protect The performance of uplink and downlink data transmission is demonstrate,proved.

Detailed description of the invention

Fig. 1 is in more subframe scheduling technologies, and subframe schedulings more for uplink, the uplink authorization signaling of a downlink subframe can To dispatch the subframe structure schematic diagram of the transmitting uplink data in one or more sub-frame of uplink；

Fig. 2 is the flow chart of the aperiodic CSI report method in the LTE system of embodiments herein one；

Fig. 3 is the flow chart of the aperiodic CSI report method in the LTE system of embodiments herein two；

Fig. 4 is the structural schematic diagram of the UE in the LTE system of embodiments herein three.

Specific embodiment

In order to solve the prior art above-mentioned triggering UE aperiodic CSI report mechanism be no longer desirable for using it is mostly sub The problem of LTE system of frame scheduling technology, in the following embodiment of the application, provides the aperiodic CSI in a kind of LTE system Method for reporting and a kind of UE that can apply this method.

Using multi-subframe uplink scheduling, i.e. a uplink authorization signaling (award by referred to as more subframe scheduling uplinks Power signaling) it can once trigger PUSCH transmission in multiple sub-frame of uplink.It is above-mentioned mostly sub when triggering aperiodic CSI report One or more PUSCH transmission that frame scheduling uplink authorization signaling is once dispatched can be used for carrying aperiodic CSI report Alternative resource.

In order to which the purpose, technological means and advantage of the application is more clearly understood, below in conjunction with attached drawing to the application's Several embodiments are described in further details.

In the LTE system of following embodiment, more subframe scheduling technologies are applied.

Embodiment one:

As shown in Fig. 2, the method for the present embodiment one the following steps are included:

Step S201: the PUSCH resource of UE is distributed in base station, and can be using method son more than one of more subframe schedulings Frame scheduling uplink authorization signaling once triggers PUSCH transmission of the UE in one or more sub-frame of uplink.When base station needs UE When reporting aperiodic CSI, the CSI request domain in more subframe scheduling uplink authorization signalings is can be set in base station, thus indicate UE into The aperiodic CSI report of row；UE receives more subframe scheduling authorization signalings of base station transmission, according to the CSI request domain in the signaling Value determine whether base station triggers aperiodic CSI report.

Step S202: when the value in the CSI request domain in more subframe scheduling authorization signalings indicates that base station triggers are aperiodic When CSI report, UE selects a sub-frame of uplink to use from the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings In the aperiodic CSI of report.

Wherein, the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings, that is, more subframe scheduling uplink authorization letters The current scheduling of the order sub-frame of uplink of uplink, that is, the actual schedules of more subframe scheduling uplink authorization signalings PUSCH The sub-frame of uplink of transmission.

Step S203, UE determine the reference resources for each CSI process that the aperiodic CSI report of triggering includes, according to The reference resources of each CSI process measure the aperiodic CSI(of the CSI process that is, CSI or CSI information).Here, more subframes Dispatching uplink authorization signaling can be different from existing LTE standard to the timing relationship between the sub-frame of uplink for sending aperiodic CSI. In fact, this timing relationship is to rely on the sub-frame of uplink of base station actual schedule and becomes when using more subframe scheduling technologies Change.

Furthermore it is possible to the method in existing LTE standard be reused, to configure the CSI request domain on the sub-frame of uplink of selection The CSI process for needing to report indicated by each value, that is, which aperiodic CSI of CSI process report needed.It is possible to further In the aperiodic CSI of configuration one CSI process of feedback, further configuration needs to feed back which CSI of this CSI process The aperiodic CSI of frame collection, or the aperiodic CSI of configuration two CSI subframe collection of UE simultaneous transmission.

It is described below in the step S202 of the present embodiment, from uplink of more subframe scheduling uplink authorization signaling current schedulings In frame, the method for selecting a sub-frame of uplink to be used for transmission aperiodic CSI can be using any one in following several method Kind.

First method is to select first in the sub-frame of uplink of more currently practical scheduling of subframe scheduling uplink authorization signaling A sub-frame of uplink transmits aperiodic CSI on first sub-frame of uplink.According to the mechanism of existing LTE system, when this When going back in one subframe while being configured with period CSI report, UE can only feed back aperiodic CSI and lose period CSI.

Second method be in the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings, select first with The sub-frame of uplink that period CSI report does not conflict transmits aperiodic CSI on the sub-frame of uplink.If current scheduling it is all on Row subframe is all configured with period CSI report, then can specify that and send aperiodic CSI on a sub-frame of uplink wherein, and lose The period CSI of this sub-frame of uplink.It can be fixed on first actual schedule sub-frame of uplink of PUSCH transmission and transmit non-week Phase CSI, and lose the period CSI of this sub-frame of uplink.Alternatively, can also determine that needs exist according to certain priority orders Aperiodic CSI is transmitted on which sub-frame of uplink and loses the period CSI in the sub-frame of uplink.For example, can be anti-according to period CSI The type of feedback determines the priority orders of sub-frame of uplink.For example, the sum of ranks precoding type instruction information of channel is than general PMI/CQI(pre-coding matrix instruction/channel quality instruction) it is more important, so multiple sub-frame of uplink memories of current scheduling In the different period CSI report of significance level, the lower period CSI report of significance level can be preferentially configured at one Aperiodic CSI is sent on the sub-frame of uplink of (for example, PMI/CQI period CSI report), and accordingly loses period CSI.If one The aperiodic CSI report that CSI process belonging to period CSI report in a sub-frame of uplink exactly currently triggers includes each The a subset of CSI process, then this period CSI report can also be come according to the lower period CSI report of above-mentioned significance level Processing, that is, lose this period CSI report, and aperiodic CSI is sent in this sub-frame of uplink.If in the more of current scheduling On a sub-frame of uplink, both there is the period CSI report for the subset for belonging to aperiodic CSI report, there is also be not aperiodic CSI report The period CSI report of the subset of announcement, then can preferentially lose the period CSI report for the subset for belonging to aperiodic CSI report, and Aperiodic CSI report is sent on corresponding sub-frame of uplink.

The third method is in the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings, according to each uplink The priority of the type set sub-frame of uplink of period CSI report in subframe, selects the sub-frame of uplink of a highest priority, Aperiodic CSI is transmitted on the sub-frame of uplink, if this sub-frame of uplink is configured with period CSI report, just loses this period CSI Report.For example, can determine that in the following order a sub-frame of uplink is used for transmission the priority orders of aperiodic CSI, by It is high to Low successively are as follows: the sub-frame of uplink of period CSI report is not configured, is configured with the upper of the lower period CSI report of significance level Row subframe, such as the report of period PMI/CQI, are configured with the sub-frame of uplink of the higher period CSI report of significance level, for example, letter The period CSI report of the sum of ranks precoding type instruction information in road.If belonging to the period CSI report in a sub-frame of uplink The a subset of each CSI process of aperiodic CSI report that exactly currently triggers of CSI process, then this period CSI is reported Announcement can also be handled according to the lower CSI report of above-mentioned significance level.If on multiple sub-frame of uplink of current scheduling, both In the presence of the period CSI report for the subset for belonging to aperiodic CSI report, there is also the periods for the subset for not being aperiodic CSI report CSI report then can preferentially lose the period CSI report for the subset for belonging to aperiodic CSI report, and on corresponding sub-frame of uplink Send aperiodic CSI report.When the sub-frame of uplink of highest priority has multiple, can be in first actual schedule wherein Aperiodic CSI is transmitted on the sub-frame of uplink of PUSCH transmission, and loses the period CSI of this sub-frame of uplink.

It is described below in the step S203 of the present embodiment, the method that UE determines the reference resources of a CSI process can adopt Any one in using the following method.

First method is: determine CSI subframe collection belonging to the downlink subframe where more subframe scheduling uplink authorization signalings, The reference resources for obtaining the CSI process are concentrated from the CSI subframe.That is, reference resources are believed according to more subframe scheduling uplink authorizations Downlink subframe where enabling determines.When UE is configured with multiple CSI subframe collection to need to feed back the non-of each CSI subframe collection respectively When period CSI, according to the implicit aperiodic CSI for determining which CSI subframe collection of report of downlink subframe where uplink authorization signaling. Which CSI subframe collection downlink subframe where i.e. more subframe scheduling uplink authorization signalings belongs to, and just feeds back which CSI subframe collection Aperiodic CSI, and concentrated from the CSI subframe and obtain reference resources.

When concentrating acquisition reference resources from the CSI subframe, it is also necessary to meet condition: the reference resources and the uplink of selection Frame keeps certain processing delay, for example, the processing delay can be 4~5ms.

Second method is: according to the timing relationship of the single sub-frame uplink authorization signaling in existing LTE system to PUSCH, It determines downlink subframe corresponding with the sub-frame of uplink of selection, CSI subframe collection belonging to the downlink subframe is determined, from CSI Frame concentrates the reference resources for obtaining the CSI process.I.e. which CSI subframe collection this downlink subframe belongs to, and just feeds back which CSI The aperiodic CSI of frame collection, and concentrated from the CSI subframe and obtain reference resources.When concentrating acquisition reference resources from the CSI subframe, Also need to meet condition: the reference resources and the sub-frame of uplink of selection keep certain processing delay, for example, the processing delay can To be 4~5ms.Using this method, base station is possible to can use more subframe scheduling uplink authorization signalings, passes through selection scheduling PUSCH where sub-frame of uplink, control UE report the aperiodic CSI of different CSI subframe collection.

The third method is: determine the maximum set for the sub-frame of uplink that more subframe scheduling uplink authorization signalings can be dispatched, According to the timing relationship of single sub-frame uplink authorization signaling to PUSCH, determining first sub-frame of uplink with the maximum set Corresponding downlink subframe determines CSI subframe collection belonging to the downlink subframe, concentrates from the CSI subframe and obtains the CSI process Reference resources.That is, (i.e. mostly sub according to the sub-frame of uplink set that more subframe scheduling uplink authorization signalings can trigger PUSCH transmission The maximum set for the sub-frame of uplink that frame scheduling uplink authorization signaling can be dispatched) in first sub-frame of uplink, i.e., with more subframes The shortest sub-frame of uplink of time delay between dispatching uplink authorization signaling, this sub-frame of uplink currently can be actual schedule PUSCH Or without scheduling PUSCH；To this sub-frame of uplink, according to the single sub-frame uplink authorization signaling in existing LTE system to PUSCH Timing relationship, determine a downlink subframe, and determine according to this downlink subframe the non-week for reporting which CSI subframe collection Phase CSI, and concentrated from the CSI subframe and obtain CSI reference resources.I.e. which CSI subframe collection this downlink subframe belongs to, and just feeds back The aperiodic CSI of which CSI subframe collection.When concentrating acquisition reference resources from the CSI subframe, it is also necessary to meet condition: the reference Resource and the sub-frame of uplink of selection keep certain processing delay, for example, the processing delay can be 4~5ms.

Fourth method is: having pre-defined the maximum for the sub-frame of uplink that more subframe scheduling uplink authorization signalings can be dispatched Each of set K sub-frame of uplink will feed back the aperiodic CSI of which CSI subframe collection.This definition can be with high-rise letter What order was semi-statically configured, or be also possible to predefined.When acquisition, according on each of set K sub-frame of uplink and this The corresponding relationship of the CSI subframe collection of row subframe feedback, determines the sub-frame of uplink CSI subframe collection to be fed back of UE selection, from the CSI Subframe concentrates the reference resources for obtaining the CSI process.For example, i-th of sub-frame of uplink in set K be for carry mod (i, 2) the aperiodic CSI, i=0,1 of a CSI subframe collection.When concentrating acquisition reference resources from the CSI subframe, it is also necessary to meet condition: The reference resources and the sub-frame of uplink of selection keep certain processing delay, for example, the processing delay can be 4~5ms.

Fifth method is: assuming that configuration needs indicated by each value in CSI request domain on the sub-frame of uplink of selection When the aperiodic CSI of report, to a CSI process, further configuration needs to feed back which CSI subframe of this CSI process The aperiodic CSI of collection, or the aperiodic CSI of two CSI subframe collection of this CSI process is fed back, configuration UE is used in selection The aperiodic CSI of two CSI subframe collection of difference of the same CSI process of row subframe simultaneous transmission.In this way, can be directly according to height The configuration of layer signaling obtains which or two CSI that need the CSI process fed back to each value in CSI request domain The aperiodic CSI of subframe collection.When acquisition, according to above-mentioned configuration, determine that the CSI needs to feed back one of aperiodic CSI in the process Or two CSI subframe collection, the reference resources for obtaining the CSI process are concentrated from one or two CSI subframe.From CSI subframe When concentrating acquisition reference resources, it is also necessary to meet condition: when the reference resources and the sub-frame of uplink of selection keep certain processing Prolong, for example, the processing delay can be 4~5ms.

Step S204:UE according to more subframe scheduling uplink authorization signalings, the sub-frame of uplink selected in step S202 The aperiodic CSI of the upper sending step S203 measurement of PUSCH.

Embodiment two:

As shown in figure 3, the method for the present embodiment two the following steps are included:

Step S301: the PUSCH resource of UE is distributed in base station, and can be using method son more than one of more subframe schedulings Frame scheduling uplink authorization signaling once triggers PUSCH transmission of the UE in one or more sub-frame of uplink.When base station needs UE When reporting aperiodic CSI, the CSI request domain in more subframe scheduling uplink authorization signalings is can be set in base station, thus indicate UE into The aperiodic CSI report of row.UE receives more subframe scheduling authorization signalings of base station transmission, according to the CSI request domain in the signaling Value determine whether current base station triggers aperiodic CSI report.

Step S302: when the value in the CSI request domain in more subframe scheduling authorization signalings indicates that base station triggers are aperiodic When CSI report, UE selects multiple sub-frame of uplink to use from the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings In the aperiodic CSI of report.

Step S303:UE determines the reference resources for each CSI process that the aperiodic CSI report of triggering includes, according to The reference resources of each CSI process measure the aperiodic CSI of the CSI process.Remember that more subframe scheduling uplink authorization signalings can be with The length of the maximum set of the sub-frame of uplink of scheduling is (that is, the sub-frame of uplink that more subframe scheduling uplink authorization signalings can be dispatched Several maximum values) it is K, the number of the sub-frame of uplink of current scheduling is M, 0 < M≤K.

It is described below in the step S302 of the present embodiment, UE is upper from more subframe scheduling uplink authorization signaling current schedulings In row subframe, method of multiple sub-frame of uplink for reporting aperiodic CSI is selected, it can be using any in following several method It is a kind of.

First method is all M sub-frame of uplink for selecting more subframe scheduling uplink authorization signaling current schedulings, in this M Aperiodic CSI is all sent on a sub-frame of uplink.Assuming that the number that feed back the CSI process of aperiodic CSI is certain, then, this A little aperiodic CSI, which are distributed on multiple sub-frame of uplink, to be transmitted, and is conducive to reduce the influence to transmitting uplink data.According to existing The mechanism of LTE system, when being gone back in some sub-frame of uplink in this M sub-frame of uplink while being configured with period CSI report, UE Aperiodic CSI report can only be fed back and lose period CSI report.

Second method is the selection in all M sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings The sub-frame of uplink not conflicted with period CSI report transmits aperiodic on the sub-frame of uplink that these do not conflict with period CSI report CSI.If all sub-frame of uplink of current scheduling all conflict with period CSI report, uplink wherein can specify that Aperiodic CSI report is sent on frame, and loses the period CSI report of this sub-frame of uplink.First practical tune can be fixed on It has spent on the sub-frame of uplink of PUSCH transmission and has transmitted aperiodic CSI report, and lost the period CSI report of this sub-frame of uplink.Or Person can also determine according to certain priority orders and transmit aperiodic CSI on which sub-frame of uplink and lose the uplink Period CSI report in subframe.For example, can determine the priority of sub-frame of uplink according to the type of period CSI feedback, generally For, the sum of ranks precoding type instruction information of channel is more important than general PMI/CQI, so current scheduling is multiple There are when the different period CSI report of significance level in sub-frame of uplink, it is lower significance level preferentially can be configured at one Aperiodic CSI report is sent on the sub-frame of uplink of period CSI report (for example, PMI/CQI period CSI report), and is accordingly lost Period CSI report on the sub-frame of uplink.If the CSI process belonging to the period CSI report in a sub-frame of uplink is just It is a subset of each CSI process of the aperiodic CSI report currently triggered, then this period CSI report can also be according to The above-mentioned lower CSI report of significance level is handled, that is, loses this period CSI report, and is sent in this sub-frame of uplink non- Period CSI.If both there is the period CSI for the subset for belonging to aperiodic CSI report on multiple sub-frame of uplink of current scheduling Report, there is also the period CSI reports for the subset for not being aperiodic CSI report, then can preferentially lose and belong to aperiodic CSI report The period CSI report of the subset of announcement, and aperiodic CSI report is sent on corresponding sub-frame of uplink.

The third method is that different period CSI reports is distinguished according to certain priority, thus in more subframe schedulings In all M sub-frame of uplink of uplink authorization signaling current scheduling, the sub-frame of uplink that does not conflict with period CSI report at those and It is configured on the sub-frame of uplink of the lower period CSI report of significance level and transmits aperiodic CSI, it is lower to lose these significance levels Period CSI report, but still send the higher period CSI report of those significance levels.For example, significance level higher week Phase CSI report can refer to the periodic report of the sum of ranks precoding type instruction information of channel；And the significance level lower period CSI report can refer to that period PMI/CQI is reported.If the CSI process belonging to the period CSI report in a sub-frame of uplink The a subset of each CSI process of the aperiodic CSI report exactly currently triggered, then this period CSI report can also be with It is handled according to the lower CSI report of above-mentioned significance level, that is, loses this period CSI report, and send out in this sub-frame of uplink Send aperiodic CSI information.Here, if all sub-frame of uplink of current scheduling all with the higher period CSI report of significance level Conflict then can specify that it is to send aperiodic CSI report on a sub-frame of uplink wherein, and lose on this sub-frame of uplink Period CSI report.Aperiodic CSI is transmitted for example, can be fixed on first actual schedule sub-frame of uplink of PUSCH transmission Report, and lose the period CSI report on this sub-frame of uplink.

Fourth method is one in all M sub-frame of uplink for select more subframe scheduling uplink authorization signaling current schedulings Part sub-frame of uplink is denoted as N number of sub-frame of uplink, sends aperiodic CSI on this N number of sub-frame of uplink, wherein N < M, N, M are certainly So number.For example, N can be equal to 2,3 ... or M-1.According to the mechanism of existing LTE system, when in this N number of sub-frame of uplink In some sub-frame of uplink in also while when being configured with period CSI report, UE can only feed back aperiodic CSI report and lose week Phase CSI report.

It is described below in the step S303 in the present embodiment, the method that UE determines the reference resources of a CSI process, it can be with Using any one in following methods.

First method is CSI subframe collection belonging to downlink subframe where determining more subframe scheduling uplink authorization signalings, The reference resources for obtaining the CSI process are concentrated from the CSI subframe.That is, CSI reference resources are according to more subframe scheduling uplink authorizations Downlink subframe where signaling determines.When UE is configured with multiple CSI subframe collection to need to feed back each CSI subframe collection respectively Implicit determining which the CSI subframe collection of report of downlink subframe when aperiodic CSI, where more subframe scheduling uplink authorization signalings Aperiodic CSI.Which CSI subframe collection downlink subframe where i.e. more subframe scheduling uplink authorization signalings belongs to, and just where is feedback The aperiodic CSI of a CSI subframe collection.When concentrating acquisition reference resources from the CSI subframe, it is also necessary to meet condition: reference money The sub-frame of uplink of source and selection keeps certain processing delay, for example, the processing delay can be 4~5ms.Assuming that multiple CSI The division of the CSI subframe collection of process be it is identical, then in this manner, the aperiodic CSI report of above-mentioned multiple CSI processes Reference resources are also identical.

Second method is to be used for transmission the sub-frame of uplink of the aperiodic CSI of the CSI process for each, is determined on this CSI subframe collection belonging to the aperiodic CSI transmitted in row subframe concentrates the reference money for obtaining the CSI process from the CSI subframe Source.To a CSI process, on two sub-frame of uplink of selection, the non-of the different CSI subframe collection of the CSI process is transmitted respectively Period CSI.For example, the CSI process includes that there are two CSI subframe collection, the aperiodic CSI of one of CSI subframe collection is at one It is transmitted on sub-frame of uplink, the CSI subframe collection of another CSI subframe collection transmits on another sub-frame of uplink.At this point, determining one The CSI subframe collection transmitted in sub-frame of uplink concentrates the method for obtaining the reference resources of the CSI process from the CSI subframe.For example, It can predefine which aperiodic CSI of CSI subframe collection each sub-frame of uplink reports, and be obtained from corresponding CSI subframe concentration CSI reference resources are taken out, for example, i-th of sub-frame of uplink is the aperiodic CSI for carrying mod (i, 2) a CSI subframe collection Information, i=0,1；Alternatively, be also possible to one of sub-frame of uplink, such as first sub-frame of uplink, using it is above-mentioned the first Method will impliedly feed back the CSI of aperiodic CSI according to the downlink subframe determination where more subframe scheduling uplink authorization signalings Subframe collection, and concentrated from the CSI subframe and obtain CSI reference resources, another CSI subframe collection is fed back on another sub-frame of uplink Aperiodic CSI, and from the CSI subframe concentrate obtain CSI reference resources.When concentrating acquisition reference resources from the CSI subframe, also Need to meet condition: the reference resources and the sub-frame of uplink of selection keep certain processing delay, for example, the processing delay can be with It is 4~5ms.

The third method is each sub-frame of uplink for selection, is awarded according to the single sub-frame uplink in existing LTE system Signaling is weighed to the timing relationship of PUSCH, downlink subframe corresponding with the sub-frame of uplink is determined, determines belonging to the downlink subframe CSI subframe collection concentrates the reference resources for obtaining the CSI process from the CSI subframe.I.e. which CSI this downlink subframe belongs to Frame collection just feeds back the aperiodic CSI of which CSI subframe collection, and concentrates from the CSI subframe and obtain reference resources.From the CSI subframe When concentrating acquisition reference resources, it is also necessary to meet condition: when the reference resources and the sub-frame of uplink of selection keep certain processing Prolong, for example, the processing delay can be 4~5ms.Using this method, base station is possible to can use more subframe scheduling uplinks Authorization signaling controls the non-week that UE reports different CSI subframe collection by two sub-frame of uplink where the PUSCH of selection scheduling Phase CSI.

Fourth method is the maximum set for the sub-frame of uplink that determining more subframe scheduling uplink authorization signalings can be dispatched, and is pressed According to the timing relationship of single sub-frame uplink authorization signaling to PUSCH, determination and first sub-frame of uplink phase in the maximum set Corresponding downlink subframe determines CSI subframe collection belonging to the downlink subframe, and the ginseng for obtaining the CSI process is concentrated from the CSI subframe Examine resource.Sub-frame of uplink set (i.e. more subframe schedulings of PUSCH transmission can be triggered according to more subframe scheduling uplink authorization signalings The maximum set for the sub-frame of uplink that uplink authorization signaling can be dispatched) in first sub-frame of uplink, i.e., and on more subframe schedulings The shortest sub-frame of uplink of time delay between row authorization signaling, this sub-frame of uplink currently can be actual schedule PUSCH or do not have There is the sub-frame of uplink of scheduling PUSCH；To this sub-frame of uplink, arrived according to the single sub-frame uplink authorization signaling in existing LTE system The timing relationship of PUSCH determines a downlink subframe, and determines which CSI subframe collection reported according to this downlink subframe Aperiodic CSI.I.e. which CSI subframe collection this downlink subframe belongs to, and just feeds back the aperiodic CSI of which CSI subframe collection, and It is concentrated from the CSI subframe and obtains CSI reference resources.When concentrating acquisition reference resources from the CSI subframe, it is also necessary to meet condition: The reference resources and the sub-frame of uplink of selection keep certain processing delay, for example, the processing delay can be 4~5ms.Assuming that The division of the CSI subframe collection of multiple CSI processes be it is identical, then in this manner, above-mentioned multiple CSI processes it is aperiodic The reference resources of CSI report are also identical.

Step S304:UE according to more subframe scheduling uplink authorization signalings, select in step s 302 one or more The aperiodic CSI measured in sending step S303 on the PUSCH of sub-frame of uplink.

It is described below that configure each code word triggering report in the CSI request domain of more subframe scheduling uplink authorization signalings which is non- Send the aperiodic CSI's of measurement in the method for the aperiodic CSI of period CSI process and the step S304 in the present embodiment Method.

(1) first method

It can be and be currently used in that send the sub-frame of uplink number of aperiodic CSI unrelated, be respectively configured using high-level signaling more The CSI process for needing to feed back indicated by each code word in CSI request domain in subframe scheduling uplink authorization signaling.For example, can be with Reuse the method in existing LTE standard；Or the method in existing LTE standard is extended.For example, can be fed back in configuration When the aperiodic CSI of one CSI process, further configuration needs to feed back the non-week of which CSI subframe collection of this CSI process Phase CSI information, or the aperiodic CSI of configuration two CSI subframe collection of UE simultaneous transmission.Remember more subframe scheduling uplink authorization signalings Triggering X aperiodic CSI of different CSI processes and different CSI subframe collection altogether, the sub-frame of uplink number selected is N, 0 < N≤M, When then sending in step s 304, this X aperiodic CSI can be assigned to N number of sub-frame of uplink internal feedback.Here, distribution Method can be the number mean allocation as far as possible according to aperiodic CSI, such as different CSI processes are fed back on each sub-frame of uplink With different CSI subframe collectionOrA aperiodic CSI；Alternatively, being also possible to feed back not in different sub-frame of uplink With the aperiodic CSI of serving cell.

(2) second method

Each code word institute that CSI request domain in more subframe scheduling uplink authorization signalings is respectively configured in high-level signaling can be used The CSI process that the needs of instruction are fed back, when then sending in step s 304, for the same CSI process, at two of selection The aperiodic CSI of the different CSI subframe collection of the CSI process is sent in sub-frame of uplink respectively.That is, being all in two sub-frame of uplink According to the aperiodic CSI of the identical CSI process of this configuration report, but two sub-frame of uplink report different CSI subframes respectively Collect the aperiodic CSI closed.Here, the CSI process of CSI subframe collection one is not configured, can only two sub-frame of uplink it One, such as first sub-frame of uplink send its aperiodic CSI.

(3) the third method

For each code word in the CSI request domain in more subframe scheduling uplink authorization signalings, high-level signaling can be used The CSI process for needing to feed back in each of K sub-frame of uplink indicated by code word sub-frame of uplink is respectively configured.Matching When setting the aperiodic CSI of one CSI process of feedback, which CSI for needing to feed back this CSI process can also be further configured The aperiodic CSI of subframe collection, or the aperiodic CSI of configuration two CSI subframe collection of UE simultaneous transmission.Being used for for note UE selection is non- The quantity of the sub-frame of uplink of period CSI report is N.

As N=K, i.e. UE is really when feeding back aperiodic CSI on K sub-frame of uplink, in N number of sub-frame of uplink of selection Each of in sub-frame of uplink, send the aperiodic CSI for needing to report in this sub-frame of uplink, that is, according to this high-level signaling Configuration the aperiodic CSI of configuration is sent on each sub-frame of uplink respectively.For example, K sub-frame of uplink of high-level signaling configuration Sub-frame of uplink for sub-frame of uplink 1~4, UE selection is also sub-frame of uplink 1~4, then when sending in step s 304, selects in UE Sub-frame of uplink 1 in send the aperiodic CSI that needs to feed back in the sub-frame of uplink 1 of configuration, sent out in the sub-frame of uplink 2 of UE selection The aperiodic CSI for needing to feed back in the sub-frame of uplink 2 that delivery is set, and so on.

As N < K, i.e. UE really less than aperiodic CSI is fed back on K sub-frame of uplink, is sent in step s 304 When, in each of N number of sub-frame of uplink of selection sub-frame of uplink, send need to report in this sub-frame of uplink it is aperiodic CSI information.That is, UE only transmits the non-week of this N number of sub-frame of uplink of the correspondence of high-level signaling configuration on N number of sub-frame of uplink of selection Phase CSI, the aperiodic CSI of other K-N sub-frame of uplink without transmitting high-level signaling configuration.For example, the K of high-level signaling configuration A sub-frame of uplink is sub-frame of uplink 1~4, and the sub-frame of uplink of UE selection is sub-frame of uplink 1 and 3, then when sending in step s 304, The aperiodic CSI for needing to feed back in the sub-frame of uplink 1 for sending configuration in the sub-frame of uplink 1 of UE selection, in the uplink of UE selection The aperiodic CSI for needing to feed back in the sub-frame of uplink 3 of transmission configuration in subframe 3, and the correspondence sub-frame of uplink 2 and 4 of high-rise configuration Aperiodic CSI cannot currently transmit.

As N < K, i.e. UE really less than aperiodic CSI is fed back on K sub-frame of uplink, is sent in step s 304 When, in N number of sub-frame of uplink of selection, send the aperiodic CSI for needing to report in the top n sub-frame of uplink of K sub-frame of uplink. That is, UE only transmits the aperiodic CSI of the top n sub-frame of uplink of high-level signaling configuration on N number of sub-frame of uplink of selection, without passing The aperiodic CSI of the remaining K-N sub-frame of uplink of defeated high-level signaling configuration.For example, K sub-frame of uplink of high-level signaling configuration Sub-frame of uplink for sub-frame of uplink 1~4, UE selection is sub-frame of uplink 1 and 3, then when sending in step s 304, in the upper of selection The aperiodic CSI for needing to feed back in the sub-frame of uplink 1 of configuration is sent in row subframe 1, and configuration is sent in the sub-frame of uplink 3 of selection Sub-frame of uplink 2 in the aperiodic CSI that needs to feed back, and the aperiodic CSI of the correspondence sub-frame of uplink 3 and 4 of high-rise configuration is current It cannot transmit.

(4) fourth method

For each code word in the CSI request domain in more subframe scheduling uplink authorization signalings, each is used for transmission The sub-frame of uplink number i of aperiodic CSI is configured using high-level signaling each in i sub-frame of uplink indicated by the code word respectively The CSI process for needing to report in a sub-frame of uplink, i=1,2 ..., K, K are that more subframe scheduling uplink authorization signalings can be dispatched Sub-frame of uplink number maximum value, K is natural number greater than 1.Here, in the aperiodic CSI of configuration one CSI process of feedback When, it can also further configure the aperiodic CSI for needing to feed back which CSI subframe collection of this CSI process, or configuration UE The aperiodic CSI of two CSI subframe collection of simultaneous transmission.

When sending in step s 304, when the quantity for the sub-frame of uplink that UE is selected is N, when 0 < N≤K, in the N number of of selection In each of sub-frame of uplink sub-frame of uplink, configured according to high-level signaling when transmitting aperiodic CSI using i sub-frame of uplink The aperiodic CSI to be fed back on each sub-frame of uplink, to send the aperiodic CSI for needing to report in this sub-frame of uplink.This The signaling overheads of a method is larger, but can be achieved on the most flexibly configuration to aperiodic CSI report.

For example, K=4, then for each code word in the CSI request domain in more subframe scheduling uplink authorization signalings, to every kind Possible sub-frame of uplink number i(1~4 for being used for transmission aperiodic CSI), i indicated by the code word are configured using high-level signaling The aperiodic CSI for needing to report in each of sub-frame of uplink sub-frame of uplink.If the quantity for the sub-frame of uplink that UE is selected is 2, That is, sub-frame of uplink 1~2, then according to the method for feeding back aperiodic CSI with two sub-frame of uplink of high level configuration, in UE selection The aperiodic CSI for needing to feed back in the sub-frame of uplink 1 of configuration is sent in sub-frame of uplink 1, is sent in the sub-frame of uplink 2 of UE selection The aperiodic CSI for needing to feed back in the sub-frame of uplink 2 of configuration.

By taking CSI request domain includes 2 bits as an example, code word ' 01 ' can still be limited to trigger more subframe scheduling uplinks The aperiodic CSI of serving cell where authorization signaling；Alternatively, can also no longer limit code word ' 01 ' can only trigger more subframe schedulings The aperiodic CSI of serving cell where uplink authorization signaling.

Embodiment three

For the method in above-described embodiment one and two, the UE in a kind of LTE system is provided in the present embodiment.

As shown in figure 4, comprising the following modules in the UE: receiving module 10, selecting module 20 obtain module 30, measurement mould Block 40 and sending module 50, in which:

Receiving module 10, the more subframe scheduling uplink authorization signalings sent for receiving base station；

Selecting module 20, more subframe scheduling uplink authorization signalings for receiving when receiving module 10 indicate that base station is touched When having sent out aperiodic CSI report, from the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings, select one or The multiple sub-frame of uplink of person are for reporting aperiodic CSI；

Module 30 is obtained, the reference resources for each CSI process that the aperiodic CSI report for obtaining triggering includes；

Measurement module 40, for according to the reference resources for obtaining each CSI process that module 30 is got, measurement should The aperiodic CSI of CSI process；

Sending module 50, for sending measurement module 40 in one or more sub-frame of uplink that selecting module 20 selects The aperiodic CSI of measurement.

Concrete operation method when above-mentioned modules execute the function of this module may refer to above-described embodiment one and two, Which is not described herein again.

To sum up, the application above embodiments can achieve following technical effect:

The aperiodic CSI report of triggering UE can be realized in the LTE system for using more subframe scheduling technologies, moreover, The influence to PUSCH transmission is reduced, the influence to period CSI report is reduced, to ensure that the transmission of uplink and downlink data Performance.

The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.

Claims

1. a kind of aperiodic channel status information CSI report method in long term evolution LTE system, the LTE system apply More subframe scheduling technologies, which is characterized in that the described method includes:

User equipment (UE) receives more subframe scheduling uplink authorization signalings that base station is sent；

When the value in the CSI request domain in more subframe scheduling uplink authorization signalings indicates the aperiodic CSI report of base station triggers When announcement, UE selects one or more uplink from the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings Subframe is for reporting aperiodic CSI；

UE obtains the reference resources for each CSI process that the aperiodic CSI report triggered includes, according to each CSI process Reference resources measure the aperiodic CSI of the CSI process；

2. the method according to claim 1, wherein a sub-frame of uplink of UE selection is one of the following:

First sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings；

First does not conflict with period CSI report in the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings Sub-frame of uplink；

A sub-frame of uplink of highest priority in the sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings.

3. according to the method described in claim 2, it is characterized in that, the sequence of the priority of sub-frame of uplink from high to low are as follows: not It configures the sub-frame of uplink of period CSI report, be configured with the period CSI report that the sub-frame of uplink of period CSI report is configured according to it The significance level of announcement sequentially arranges from low to high.

4. according to the method in claim 2 or 3, which is characterized in that the sequence of the priority of sub-frame of uplink from high to low are as follows: The sub-frame of uplink of period CSI report is not configured, is configured with period pre-coding matrix instruction PMI and/or channel quality indicator (CQI) report The sub-frame of uplink of announcement, the sum of ranks precoding type for being configured with channel indicate the sub-frame of uplink of the period CSI report of information.

5. according to the method described in claim 2, it is characterized in that, the UE obtains the side of the reference resources of a CSI process Method includes:

CSI subframe collection belonging to the downlink subframe where more subframe scheduling uplink authorization signalings is determined, from the CSI subframe collection The middle reference resources for obtaining the CSI process；

Alternatively, determination is opposite with the selected sub-frame of uplink according to the timing relationship of single sub-frame uplink authorization signaling to PUSCH The downlink subframe answered determines CSI subframe collection belonging to the downlink subframe, and the reference for obtaining the CSI process is concentrated from the CSI subframe Resource；

Alternatively, the maximum set for the sub-frame of uplink that more subframe scheduling uplink authorization signalings can be dispatched is determined, according to list Frame uplink authorization signaling determines corresponding with first sub-frame of uplink in the maximum set to the timing relationship of PUSCH Downlink subframe determines CSI subframe collection belonging to the downlink subframe, and the reference money for obtaining the CSI process is concentrated from the CSI subframe Source；

Alternatively, corresponding with CSI subframe collection that the sub-frame of uplink is fed back according to each of maximum set sub-frame of uplink Relationship determines the selected sub-frame of uplink CSI subframe collection to be fed back, and the ginseng for obtaining the CSI process is concentrated from the CSI subframe Examine resource；

Alternatively, determining should according to the instruction information in CSI request domain in preconfigured more subframe scheduling uplink authorization signalings The CSI subframe collection for needing to feed back aperiodic CSI during CSI concentrates the reference resources for obtaining the CSI process from the CSI subframe, Wherein, the instruction information is to need to report each CSI mistake in the selected sub-frame of uplink indicated by CSI request domain The aperiodic CSI of one or two of journey CSI subframe collection.

6. the method according to claim 1, wherein multiple sub-frame of uplink of UE selection are one of the following:

All sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings；

Do not conflict in all sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings with period CSI report upper Row subframe；

Do not conflict in all sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings with period CSI report upper Row subframe and the sub-frame of uplink for being configured with the low period CSI report of significance level；

N number of sub-frame of uplink in all M sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings, N < M, N, M is the natural number greater than 1.

7. according to method described in claim 2 or 6, which is characterized in that when more subframe scheduling uplink authorization signalings are worked as When all sub-frame of uplink of preceding scheduling all conflict with period CSI report, a sub-frame of uplink of the UE selection is one of the following:

One of more subframe scheduling uplink authorization signaling current schedulings is configured with the upper of the low period CSI report of significance level Row subframe.

8. according to the method described in claim 6, it is characterized in that, the UE obtains the side of the reference resources of a CSI process Method includes:

Alternatively, being used for transmission the sub-frame of uplink of the aperiodic CSI of the CSI process for each, determines in the sub-frame of uplink and pass CSI subframe collection belonging to defeated aperiodic CSI concentrates the reference resources for obtaining the CSI process from the CSI subframe；

Alternatively, being directed to each sub-frame of uplink of selection, according to the timing relationship of single sub-frame uplink authorization signaling to PUSCH, really Fixed downlink subframe corresponding with the sub-frame of uplink, determines CSI subframe collection belonging to the downlink subframe, concentrates from the CSI subframe Obtain the reference resources of the CSI process；

Alternatively, the maximum set for the sub-frame of uplink that more subframe scheduling uplink authorization signalings can be dispatched is determined, according to list Frame uplink authorization signaling determines corresponding with first sub-frame of uplink in the maximum set to the timing relationship of PUSCH Downlink subframe determines CSI subframe collection belonging to the downlink subframe, and the reference money for obtaining the CSI process is concentrated from the CSI subframe Source.

9. according to the method described in claim 6, being awarded it is characterized in that, configuring more subframe scheduling uplinks using high-level signaling The CSI process for needing to report indicated by the code word in the CSI request domain in power signaling；

Then, the method that the UE sends the aperiodic CSI of measurement in multiple sub-frame of uplink of selection includes:

It needs indicated by the code word in the CSI request domain in more subframe scheduling uplink authorization signalings to report aperiodic The quantity of CSI is X, and when the quantity of the sub-frame of uplink that the UE select is N, a aperiodic CSI of the X of measurement are assigned on N number of It is sent in row subframe, wherein X, N are the natural number greater than 1；

Alternatively, being directed to the same CSI process, the CSI mistake is sent in two sub-frame of uplink in multiple sub-frame of uplink of selection The aperiodic CSI of the different CSI subframe collection of journey.

10. according to the method described in claim 6, it is characterized in that, in more subframe scheduling uplink authorization signalings Each code word in CSI request domain configures each of K sub-frame of uplink indicated by code word uplink using high-level signaling Need to report that the aperiodic CSI of one group of CSI process and CSI subframe collection, K are more subframe scheduling uplink authorization signalings in subframe The maximum value of the quantity for the sub-frame of uplink that can be dispatched, the quantity for the sub-frame of uplink that UE is selected are N, and K, N are the nature greater than 1 Number；

As N=K, in each of N number of sub-frame of uplink of selection sub-frame of uplink, sends and need to report in this sub-frame of uplink Aperiodic CSI；

Alternatively, in each of N number of sub-frame of uplink of selection sub-frame of uplink, sending this sub-frame of uplink domestic demand as N < K The aperiodic CSI to be reported；

Alternatively, as N < K, in N number of sub-frame of uplink of selection, in the top n sub-frame of uplink that sends the K sub-frame of uplink The aperiodic CSI for needing to report.

11. according to the method described in claim 6, it is characterized in that, in more subframe scheduling uplink authorization signalings Each code word in CSI request domain, to each probable value i of the quantity of the sub-frame of uplink of UE selection, respectively using high-rise letter It enables configuring in each of i sub-frame of uplink indicated by code word sub-frame of uplink and needs to report one group of CSI process and CSI The aperiodic CSI, i=1,2 ..., K of frame collection, K are the sub-frame of uplink that more subframe scheduling uplink authorization signalings can be dispatched Quantity maximum value, K is natural number greater than 1；

When the quantity for the sub-frame of uplink that UE is selected is N, when 0 < N≤K, in each of N number of sub-frame of uplink of selection uplink In frame, the aperiodic CSI for needing to report in this sub-frame of uplink is sent.

12. the user equipment (UE) in a kind of long term evolution LTE system, the LTE system applies more subframe scheduling technologies, special Sign is that the UE includes:

Selecting module, for when the CSI request domain in more subframe scheduling uplink authorization signalings that the receiving module receives When value indicates base station triggers aperiodic channel status information CSI report, work as from more subframe scheduling uplink authorization signalings In the sub-frame of uplink of preceding scheduling, select one or more sub-frame of uplink for reporting aperiodic CSI；

Measurement module, the reference resources of each CSI process for being got according to the acquisition module, measures the CSI mistake The aperiodic CSI of journey；

Sending module is surveyed for sending the measurement module in one or more sub-frame of uplink that the selecting module selects The aperiodic CSI of amount.

13. the user equipment (UE) in long term evolution LTE system according to claim 12, which is characterized in that the UE choosing The sub-frame of uplink selected is one of the following:

14. the user equipment (UE) in long term evolution LTE system according to claim 13, which is characterized in that sub-frame of uplink Priority sequence from high to low are as follows: the uplink that the sub-frame of uplink of period CSI report is not configured, is configured with period CSI report The significance level for the period CSI report that subframe is configured according to it sequentially arranges from low to high.

15. the user equipment (UE) in long term evolution LTE system described in 3 or 14 according to claim 1, which is characterized in that uplink The sequence of the priority of subframe from high to low are as follows: the sub-frame of uplink of period CSI report is not configured, is configured with period pre-coding matrix The sum of ranks precoding type instruction information for indicating the sub-frame of uplink of PMI and/or channel quality indication CQI report, being configured with channel Period CSI report sub-frame of uplink.

16. the user equipment (UE) in long term evolution LTE system according to claim 13, which is characterized in that the acquisition Module is used for:

17. the user equipment (UE) in long term evolution LTE system according to claim 12, which is characterized in that the UE choosing The multiple sub-frame of uplink selected are one of the following:

18. the user equipment (UE) in long term evolution LTE system described in 3 or 17 according to claim 1, which is characterized in that when When all sub-frame of uplink of more subframe scheduling uplink authorization signaling current schedulings all conflict with period CSI report, the UE One sub-frame of uplink of selection is one of the following:

19. the user equipment (UE) in long term evolution LTE system according to claim 17, which is characterized in that the acquisition Module is used for:

20. the user equipment (UE) in long term evolution LTE system according to claim 17, which is characterized in that using high-rise The CSI mistake for needing to report indicated by the code word in the CSI request domain in more subframe scheduling uplink authorization signalings described in signal deployment Journey；

Then the sending module is used for:

21. the user equipment (UE) in long term evolution LTE system according to claim 17, which is characterized in that for described Each code word in the CSI request domain in more subframe scheduling uplink authorization signalings, is configured indicated by the code word using high-level signaling Each of K sub-frame of uplink sub-frame of uplink in need to report the aperiodic CSI, K of one group of CSI process and CSI subframe collection The maximum value of the quantity for the sub-frame of uplink that can be dispatched for more subframe scheduling uplink authorization signalings, the sub-frame of uplink of UE selection Quantity be N, K, N are natural number greater than 1；

Then the sending module is used for:

22. the user equipment (UE) in long term evolution LTE system according to claim 17, which is characterized in that for described Each code word in the CSI request domain in more subframe scheduling uplink authorization signalings, to UE selection sub-frame of uplink quantity it is every One probable value i is configured in each of i sub-frame of uplink indicated by code word sub-frame of uplink using high-level signaling respectively It needs to report the aperiodic CSI, i=1,2 of one group of CSI process and CSI subframe collection ..., K, K is more subframe scheduling uplinks The maximum value of the quantity for the sub-frame of uplink that authorization signaling can be dispatched, K are the natural number greater than 1；

Then the sending module is used for: