CN103516464A - Method and device for feeding back channel state information reports - Google Patents

Method and device for feeding back channel state information reports Download PDF

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CN103516464A
CN103516464A CN201210205362.5A CN201210205362A CN103516464A CN 103516464 A CN103516464 A CN 103516464A CN 201210205362 A CN201210205362 A CN 201210205362A CN 103516464 A CN103516464 A CN 103516464A
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csi
resource
parameter
indicate
base station
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CN103516464B (en
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郑勇
孙云锋
贺海港
任敏
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ZTE Corp
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ZTE Corp
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Abstract

The invention discloses a method and a device for feeding back channel state information reports. The method includes the following steps that: a base station configures parameters of a plurality of groups of channel state information (CSI) reports; and the base station informs UE about the parameters of the plurality of groups of channel state information (CSI) reports and instructs the UE to feed back the channel state information (CSI) reports of a predetermined group. The parameters of each group of channel state information (CSI) reports in the plurality of groups of channel state information (CSI) reports comprise a resource allocation parameter of one or a plurality of channel state information reference signal (CSI-RS) resources which are used for channel measurement. The parameters of each group of channel state information (CSI) reports in the plurality of groups of channel state information (CSI) reports further comprise one of the following parameters: distribution information of one or a plurality of interference measurement resources corresponding to each channel state information reference signal (CSI-RS) resource in one or the plurality of channel state information reference signal (CSI-RS) resources; a parameter which is used for indicating the corresponding relationship between one or the plurality of channel state information reference signal (CSI-RS) resources and the interference measurement resources; a parameter which is used for indicating the corresponding relationship between the channel state information reference signal (CSI-RS) resources and channel state information reference signal (CSI-RS) resources used for interfering calculation; and/or a parameter used for indicating the corresponding relationship between one or a plurality of channel state information reference signal (CSI-RS) resources and component carriers in carrier aggregation.

Description

The feedback method of channel status information reports and device
Technical field
The present invention relates to the communications field, in particular to feedback method and the device of channel condition information (Channel State Information, referred to as CSI) report.
Background technology
In order to improve the data throughout that is subject to the edge customer that presence of intercell interference is larger in Cellular Networks, coordinate multipoint technology (Cooperate Multiple Point, CoMP) technology has been proposed in to Long Term Evolution (LTE) systematic research.CoMP technology has comprised joint transmission (Joint Transmission, JT), be that a plurality of sending nodes (TP) cooperate by spatial domain, on identical running time-frequency resource, for sending data, subscriber equipment (UE) reduces interference to improve signal power simultaneously, promote the reception Signal to Interference plus Noise Ratio (SINR) of UE, realize the lifting of community marginal user performance.
UE side need to be measured respectively channel condition information (the Channel State Information of the TP that respectively cooperates conventionally, CSI), comprise channel coefficient matrix, Signal to Interference plus Noise Ratio (SINR), channel sequence information etc., and with pre-coding matrix indication (Precoding Matric Indicator, PMI), channel quality indication (Channel Quality Indicator, CQI), order indication (Rank Indicator, RI) etc., or the form of other indication that may increase newly reports, hereinafter referred to as CSI, report.
In order to carry out CoMP, UE need to report multiple CSI report to base station side.These reports can be by periodic feedback mode physically row control channel PUCCH send, row Traffic Channel PUSCH is upper physically sends for mode that also can be by non-periodic feedback.In 10 stages of LTE version, in order to realize carrier aggregation CADuo community feedback, base station side configures CSI report combination by high-level signaling, with the bit indication in the CSI request domain in Downlink Control Information DCI form 0 or format 4, report which kind of combination, as shown 7.2.1-1A in following table 1(LTE physical layer protocol 36.213) as shown in:
CSI request domain in the DCI that comprises uplink scheduling information in the table proprietary PDCCH of 1UE search volume
Figure BDA00001792452200011
The concept proposing in CoMP is measuring assembly, be that base station side notifies UE to measure those several channel state information reference signals CSI-RS resources by high-level signaling, the CSI report of these CSI-RS resources has formed one group of report set, in non-periodic feedback, can in a subframe, feed back simultaneously.CSI-RS can also can be for interferometry for the measurement of channel coefficients, and the CSI-RS resource of the following stated mainly refers to measure for channel coefficients.
In the conceptual phase of LTE version 11, some companies have proposed to utilize zero energy or non-zero power CSI-RS resource for interferometry, are called interferometry resource.The interfere information that the channel information that UE obtains at CSI-RS resource measurement and interferometry resource measurement obtain reports to base station side by the form of RI/PMI/CQI, and base station side is used these information to send data to UE.UE side is used which CSI-RS resource and the measurement of interferometry resource to have base station side to notify UE by high-level signaling.
Because a report that has different CSI-RS resources and interferometry combination of resources to form has multiple possible combination.Thereby combining base station at most, the CSI of report has larger dispatching flexibility improving performance.On the other hand, if it is thick to divide into groups, may causes the increase of feedback overhead and reduce the problem of feeding back flexibility.Therefore, can consider different CSI-RS resources and CSI report corresponding to jamming resource to carry out thinner grouping.And indicate UE to report which group CSI by dynamic signaling mode more flexibly.
For the larger problem of CSI feedback method signaling consumption in correlation technique, effective solution is not yet proposed at present.
Summary of the invention
For the larger problem of CSI feedback method signaling consumption in correlation technique, the invention provides CSI feedback method and device, at least to address this problem.
According to an aspect of the present invention, a kind of feedback method of channel condition information CSI report is provided, comprise: the parameter of the many groups of base station configuration CSI report, in wherein said many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described a plurality of CSI-RS resource;
Be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described one or more CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in described each group CSI report;
Described base station notifies the parameter of described many group CSI report to user equipment (UE), and indicates the CSI report of the predetermined group of described UE feedback.
Preferably, described base station is notified the parameter of described many group CSI report to UE and is comprised: described parameter is the resource configuration parameter of the one or more CSI-RS resources for channel measurement, CRS-RS resource that described base station indicates by a bit or bit sequence that described in each group CSI report, UE need to feed back in high-level signaling or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in described one or more CRS-RS resource or described one or more CRS-RS resource, described bit is used to indicate described UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource.
Preferably, the CSI report of the predetermined group of described base station indication UE feedback comprises: described parameter is the resource configuration parameter of the one or more CSI-RS resources for channel measurement, and described base station each group CSI that one of in the following manner the described UE of indication reports reports the aggregate combinations of corresponding CSI resource or CSI-RS resource:
Indicate by one or more bits in the CSI request domain in dedicated control signaling DCI described base station;
Indicate by including the DCI place resource location of described CSI request domain described base station.
Preferably, described base station comprises by including the DCI place resource location indication of described CSI request domain: described base station sends the DCI that comprises CSI request in described CSI reports the subframe at channel measurement resource place of corresponding high level configuration or subframe set; Or
Described base station is meeting SFNmodN=0 ..., the subframe of N-1 sends the DCI that comprises CSI request, wherein SFN represents subframe numbers, and N is greater than 1 integer, described 0,, N-1 is used to indicate the aggregate combinations that described each group CSI reports corresponding CSI resource or CSI-RS resource; Or
Described base station is meeting N cCEmodN=0 ..., the control channel unit CCE of N-1 sends the DCI that comprises CSI request, wherein N as original position cCErepresent for transmitting the numbering of first CCE of all possible PDCCH in first CCE search volume of the physical downlink control channel PDCCH that the polymerization rank of described DCI is L, N is greater than 1 integer, described 0,, N-1 is used to indicate the aggregate combinations that described each group CSI reports corresponding CSI resource or CSI-RS resource.
Preferably, described base station is notified the parameters of described many group CSI report to UE and is comprised: described parameter is the assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource, be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described one or more CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier CC, the CSI-RS resource that described base station need to be fed back UE described in described each group CSI report by high-level signaling, the corresponding interferometry resource of combination of CSI-RS aggregation of resources, CSI-RS resource or CC for interference calculation notify to UE, or
CRS-RS resource that described base station is used that default bit or default bit sequence indicate that described in each group CSI report, UE need to feed back or the corresponding interferometry resource of combination of CRS-RS aggregation of resources or for CSI-RS resource or the CC of interference calculation.
Preferably, the CSI report of the predetermined group of described base station indication UE feedback comprises: described parameter is the assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource or the parameter that is used to indicate corresponding relation between described one or more CSI-RS resource and interferometry resource or for the CSI-RS resource of interference calculation, described base station each group CSI that one of in the following manner the described UE of indication reports report corresponding CSI resource or CSI-RS resource aggregate combinations interferometry resource or for CSI-RS resource or the CC of interference calculation:
Indicate by one or more bits in the CSI request domain in DCI described base station;
Indicate by including the DCI place resource location of described CSI request domain described base station.
Preferably, described base station comprises by including the DCI place resource location indication of described CSI request domain: described base station sends the DCI that comprises CSI request in described CSI reports the subframe at interferometry resource place of corresponding high level configuration or subframe set; Or
Base station sends the DCI that comprises CSI request in described CSI reports the subframe at the CSI-RS resource place for interference calculation of corresponding high level configuration or subframe set; Or
Base station is meeting SFNmodN=0 ..., the subframe of N-1 sends the DCI that comprises CSI request, and wherein SFN represents subframe numbers, and N is greater than 1 integer, described 0 ..., N-1 is used to indicate described interferometry resource or for CSI-RS resource or the CC of interference calculation.
Described base station is meeting N cCEmodN=0 ..., the control channel unit CCE of N-1 sends the DCI that comprises CSI request, wherein N as original position cCErepresent for transmitting the numbering of first CCE of PDCCH all in first CCE search volume of physical downlink control channel PDCCH of described DCI, N is greater than 1 integer, described 0,, N-1 is used to indicate described interferometry resource or for CSI-RS resource or the CC of interference calculation.
Preferably, described base station is notified the parameter of described many group CSI report to UE and is comprised: described parameter is the value condition that is used to indicate order information/pre-coding matrix indication RI/PMI in described each group CSI report, and whether described base station is used default bit to indicate RI in a plurality of CSI reports that described UE reports identical or be equal to preset value.
Preferably, the CSI report of the predetermined group of described base station indication UE feedback comprises: described parameter is the value condition that is used to indicate order information/pre-coding matrix indication RI/PMI in described each group CSI report, described base station use comprise CSI request with DCI and GaiDCI place resource location indicate described base station to use default bit to indicate RI in a plurality of CSI reports that described UE reports whether identical or be equal to preset value.
Preferably, the parameter of the many groups of base station configuration CSI report comprises: described base station is CSI-RS resource and/or bit sequence parameter codebook subset restriction codebooksubsetRestriction corresponding to interferometry resource distribution corresponding to described CSI-RS resource in each the CSI report in described a plurality of report.
According to a further aspect in the invention, a kind of feedback method of CSI report is also provided, comprise: UE obtains the parameter of many groups CSI report of base station configuration, in wherein said many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource;
Be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in described each group CSI report;
Described UE is according to the CSI report of the predetermined group of the indication feedback of described base station.
Preferably, the parameter that described UE obtains described many group CSI report is notified to user equipment (UE) and is comprised: described parameter is the resource configuration parameter of the one or more channel state information reference signals CSI-RS resources for channel measurement, CRS-RS resource that described UE determines by bit in high-level signaling or bit sequence indication that described in each group CSI report, UE need to feed back according to the described base station getting or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in described one or more CRS-RS resource or described one or more CRS-RS resource, described bit is used to indicate described UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource,
Described parameter is the assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource, be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC, described UE obtains the CSI-RS resource that described in described each group CSI report of notifying by high-level signaling described base station, UE need to feed back, the corresponding interferometry resource of combination of CRS-RS aggregation of resources, CSI-RS resource or CC for interference calculation, or described UE determines according to the default bit getting or default bit sequence a CRS-RS resource, the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or the described CC that described in each group CSI report, UE need to feed back.
Described parameter is the value condition that is used to indicate RI/PMI in described each group CSI report, and described UE determines that whether RI in a plurality of CSI reports that described UE reports is identical or is equal to preset value according to the default bit getting.
In accordance with a further aspect of the present invention, a kind of feedback device of CSI report is also provided, be applied to base station, comprise: configuration module, for configuring the parameter of many group CSI report, in wherein said many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource;
Be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in described each group CSI report;
Notification module, for notifying the parameter of described many group CSI report to user equipment (UE);
The first indicating module, is used to indicate the CSI report of the predetermined group of described UE feedback.
Preferably, described notification module comprises: the second indicating module, for described parameter, it is the resource configuration parameter for one or more channel state information reference signals CSI-RS resources of channel measurement, CRS-RS resource of indicating by a bit or bit sequence that described in each group CSI report, UE need to feed back in high-level signaling or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in described one or more CRS-RS resource or described a plurality of CRS-RS resource, described bit is used to indicate described UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource.
Preferably, described the first indicating module comprises: the 3rd indicating module, for described parameter, be the resource configuration parameter for one or more channel state information reference signals CSI-RS resources of channel measurement, one of in the following manner the described UE of indication report each organize the aggregate combinations that CSI reports corresponding CSI resource or CSI-RS resource:
Indicate by one or more bits in the CSI request domain in dedicated control signaling DCI described base station;
Indicate by including the DCI place resource location of described CSI request domain described base station.
Preferably, described notification module comprises: the 4th indicating module, for described parameter, be the assignment information of one or more interferometry resources corresponding to described each CSI-RS resource of one or more CSI-RS resource or the parameter that is used to indicate corresponding relation between described one or more CSI-RS resource and interferometry resource, and/or be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier, the CRS-RS resource that UE described in described each group CSI report need to be fed back by high-level signaling or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or described CC notify to UE, or
The 5th indicating module, for CRS-RS resource or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or the described CC that uses that default bit or default bit sequence indicate that described in each group CSI report, UE need to feed back.
Preferably, described the first indicating module comprises: the 6th indicating module, for described parameter, it is the assignment information of one or more interferometry resources corresponding to described each CSI-RS resource of one or more CSI-RS resource, be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC, each group CSI that one of in the following manner the described UE of indication reports reports corresponding CSI resource, the interferometry resource of the aggregate combinations of CSI-RS resource, the described CSI-RS resource for interference calculation or described CC:
Indicate by one or more bits in the CSI request domain in DCI described base station;
Indicate by including the DCI place resource location of described CSI request domain described base station.
Preferably, described notification module comprises: the 7th indicating module, for described parameter, be the value condition that is used to indicate described each group CSI report order information/pre-coding matrix indication RI/PMI, whether described base station is used default bit to indicate RI in a plurality of CSI reports that described UE reports identical or be equal to preset value.
Preferably, described the first indicating module comprises: the 8th indicating module, for described parameter, be the value condition that is used to indicate described each group CSI report order information/pre-coding matrix indication RI/PMI, use comprise CSI request with DCI and GaiDCI place subframe position indicate described base station to use default bit to indicate RI in a plurality of CSI reports that described UE reports whether identical or be equal to preset value.
According to another aspect of the invention, a kind of feedback device of CSI report is also provided, be applied to UE, comprise: the first acquisition module, for obtaining the parameter of the many groups of base station configuration CSI report, in wherein said many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource;
Be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in described each group CSI report;
Feedback module, for the CSI report according to the predetermined group of the indication feedback of described base station.
Preferably, described the first acquisition module comprises: the second acquisition module, for described parameter, it is the resource configuration parameter for one or more channel state information reference signals CSI-RS resources of channel measurement, CRS-RS resource determining by bit in high-level signaling or bit sequence indication that described in each group CSI report, UE need to feed back according to the described base station getting or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in described one or more CRS-RS resource or described one or more CRS-RS resource, described bit is used to indicate described UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource,
The 3rd acquisition module, for described parameter, it is the assignment information of one or more interferometry resources corresponding to described each CSI-RS resource of one or more CSI-RS resource, be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier, obtain CSI-RS resource that described in described each group CSI report that described base station notifies by high-level signaling, UE need to feed back or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or described CC, or the 4th acquisition module, for determining according to the default bit getting or default bit sequence a CRS-RS resource, the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or the described CC that described in each group CSI report, UE need to feed back,
The 5th acquisition module, for described parameter, be the value condition that is used to indicate described each group CSI report order information/pre-coding matrix indication RI/PMI, according to the default bit getting, determine that whether RI in a plurality of CSI reports that described UE reports is identical or be equal to preset value.
By the present invention, adopt base station according to preset rules configuration parameter, and the parameter of multiple CSI report is notified to UE, the feedback that indication UE carries out CSI report, realized according to the CSI that need to feed back neatly of base station and having reported, overcome the larger problem of correlation technique CSI feedback method signaling consumption, not only reduced signaling consumption, and improved to a certain extent the flexibility of CSI report feedback.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the first pass figure of the CSI feedback method of the embodiment of the present invention;
Fig. 2 is according to the second flow chart of the CSI feedback method of the embodiment of the present invention;
Fig. 3 is according to the first structured flowchart of the CSI feedback device of the embodiment of the present invention;
Fig. 4 is preferred the first structured flowchart according to the CSI feedback device of the embodiment of the present invention;
Fig. 5 is according to the second structured flowchart of the CSI feedback device of the embodiment of the present invention;
Fig. 6 is preferred the second structured flowchart according to the CSI feedback device of the embodiment of the present invention;
Fig. 7 is according to the flow chart of the non-periodic feedback of embodiment of the present invention Duo community CSI;
Fig. 8 is according to the schematic diagram one of the CSI-RS resource on the embodiment of the present invention RB and interferometry resource corresponding to CSI-RS resource;
Fig. 9 triggers jamming resource configuration mode according to the subframe position at the up DCI place of passing through to comprise CSI request domain of the embodiment of the present invention;
Figure 10 selects the schematic diagram of jamming resource configuration mode by ULDCI place subframe collection location indication UE according to the base station of the embodiment of the present invention; And;
Figure 11 is according to the CSI-RS resource on the embodiment of the present invention RB, and the schematic diagram two of interferometry resource corresponding to CSI-RS resource.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
This preferred embodiment provides a kind of CSI feedback method, and Fig. 1 is according to the first pass figure of the CSI feedback method of the embodiment of the present invention, comprises following step S102 and step S104.
Step S102: the parameters of the many groups of base station configuration CSI report, wherein in many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in these one or more CSI-RS resources;
Be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, be used to indicate these one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in these one or more CSI-RS resources and carrier aggregation the parameter of corresponding relation between component carrier;
Be used to indicate the value condition of order information/pre-coding matrix indication (RI/PMI) in this each group CSI report;
Step S104: base station notifies the parameter of organizing CSI report to UE more, and indicate the CSI of the predetermined group of this UE feedback to report.
Pass through above-mentioned steps, base station is according to above-mentioned rule configuration parameter, and the parameter of multiple CSI report is notified to UE, the feedback that indication UE carries out CSI report, realized according to the CSI that need to feed back neatly of base station and having reported, overcome the larger problem of correlation technique CSI feedback method signaling consumption, not only reduced signaling consumption, and improved to a certain extent the flexibility of CSI report feedback.
In force, corresponding to different parameter types, base station can be notified the parameter of this many group CSI report to UE in several ways:
(1) corresponding to this parameter, be the resource configuration parameter for one or more CSI-RS resources of channel measurement.
CRS-RS resource that this base station indicates by a bit or bit sequence that in each group CSI report, this UE need to feed back in high-level signaling or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of the aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in these one or more CRS-RS resources or this one or more CRS-RS resources, this bit is used to indicate this UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource.
In the preferred embodiment, base station each group CSI that one of in the following manner this UE of indication reports reports the aggregate combinations of corresponding CSI resource or CSI-RS resource:
Mode one: indicate by one or more bits in the CSI request domain in dedicated control signaling (Dedicated Control Information, referred to as DCI) base station;
Mode two: indicate by including the DCI place resource location of CSI request domain base station.
For mode two, one of can be by the following method than ，Gai base station preferably realize the DCI place resource location that includes this CSI request domain and indicate.
First method: base station sends the DCI that comprises CSI request in this CSI reports the subframe at channel measurement resource place of corresponding high level configuration or subframe set; Or
Second method: base station is meeting SFNmodN=0 ..., the subframe of N-1 sends the DCI that comprises CSI request, wherein SFN represents subframe numbers, and N is greater than 1 integer, and this is 0 years old,, N-1 is used to indicate the aggregate combinations that each group CSI reports corresponding CSI resource or CSI-RS resource; Or
The third method: this base station is meeting N cCEmodN=0 ..., the control channel unit (CCE) of N-1 sends the DCI that comprises CSI request, wherein N as original position cCErepresent for transmitting the numbering of first CCE of all possible PDCCH in first CCE search volume of physical downlink control channel PDCCH of this DCI, N is greater than 1 integer, this is 0 years old,, N-1 is used to indicate the aggregate combinations that each group CSI reports corresponding CSI resource or CSI-RS resource.
(2) corresponding to this parameter, be the assignment information of one or more interferometry resources corresponding to each CSI-RS resource in these one or more CSI-RS resources, be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, this one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate the parameter that forms corresponding relation between CC in this CSI-RS resource and carrier aggregation.
The combination corresponding interferometry resource of base station by the high-level signaling CSI-RS resource that in each group CSI report, this UE need to feed back by this, CRS-RS aggregation of resources, for CSI-RS resource or the CC of interference calculation, notify to UE; Or
CRS-RS resource that base station is used that default bit or default bit sequence indicate that in each group CSI report, this UE need to feed back or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, for CSI-RS resource or the CC of interference calculation.
One of can be in the following manner in which Zhong， base station each group CSI of reporting of indication UE report corresponding CSI resource or CSI-RS resource aggregate combinations interferometry resource or for CSI-RS resource or the corresponding CC of interference calculation:
Mode three: indicate by one or more bits in the CSI request domain in DCI base station;
Mode four: indicate by including the DCI place resource location of CSI request domain base station.
For mode Si， base station, one of can be by the following method realizing the DCI place resource location that includes CSI request domain indicates.
The third method: base station sends the DCI that comprises CSI request in CSI reports the subframe at interferometry resource place of corresponding high level configuration or subframe set.
The 4th kind of method: base station sends the DCI that comprises CSI request in CSI reports the subframe at the CSI-RS resource place for interference calculation of corresponding high level configuration or subframe set.
Lung biopsy: base station is meeting SFNmodN=0, the subframe of N-1 sends the DCI that comprises CSI request, wherein SFN represents subframe numbers, N is greater than 1 integer, this 0 ..., N-1 is used to indicate this interferometry resource or for CSI-RS resource or the carrier aggregation CC corresponding to this CSI-RS resource of interference calculation.
The 6th kind of method: base station is meeting N cCEmodN=0 ..., the control channel unit CCE of N-1 sends the DCI that comprises CSI request, wherein N as original position cCErepresent for transmitting the numbering of first CCE of all possible PDCCH in first CCE search volume of the PDCCH that the polymerization rank of DCI is L, N is greater than 1 integer, 0,, N-1 is used to indicate interferometry resource or for CSI-RS resource or the carrier aggregation CC corresponding to this CSI-RS resource of interference calculation
(3) corresponding to this parameter, be the value condition that is used to indicate RI/PMI in this each group CSI report.
In which Zhong， base station, use comprise CSI request with DCI and GaiDCI place subframe position indication base station use default bit to indicate RI in a plurality of CSI reports that this UE reports whether identical or be equal to preset value.
It should be noted that, one of packet mode principle in correlation technique can be to divide into groups according to different transmission meanss.For example,, for single community or JT HuoDPSDuo community CSI report.These transmission meanss may be different to the requirement of RI.JT requires the different CSI report in a group to be consistent conventionally, for example, be 1, avoids when the RI difference of CSI corresponding to different CSI-RS resources and base station side need to be converted the decline of the CSI precision that RI brings to carry out JT.On the other hand, for DPS, each subframe is only sent by a TP, now can select the RI of the optimization that this TP is corresponding, and these RI may be different.Therefore different transmission method or operative scenario, to whether limiting RI or PMI has different demands, so considers in this preferred embodiment to be configured neatly.
As another execution mode preferably, can be for this in this preferred embodiment Zhong， base station CSI-RS resource and/or bit sequence parameter codebook subset restriction codebooksubsetRestriction corresponding to interferometry resource distribution corresponding to CSI-RS resource in each CSI report in one or more reports.
This preferred embodiment provides a kind of CSI feedback method, and Fig. 2 is according to the second flow chart of the CSI feedback method of the embodiment of the present invention, comprises following step S202 and step S204.
Step S202:UE obtains the parameter of many groups CSI report of base station configuration, wherein in many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in one or more CSI-RS resources;
Be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, be used to indicate these one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in this CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in each group CSI report;
Step S204: according to the CSI report of the predetermined group of the indication feedback of this base station.
As an execution mode preferably, step S204 can realize in the following way.
Mode one: this parameter is the resource configuration parameter for one or more CSI-RS resources of channel measurement, CRS-RS resource that this UE determines by bit in high-level signaling or bit sequence indication that in each group CSI report, this UE need to feed back according to the base station getting or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in these one or more CRS-RS resources or this one or more CRS-RS resources, this bit is used to indicate this UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource,
Mode two: this parameter is the assignment information of one or more interferometry resources corresponding to each CSI-RS resource in one or more CSI-RS resources, be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, be used to indicate these one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, or be used to indicate in this CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC, UE obtains CSI-RS resource that in this each group CSI report that base station notifies by high-level signaling, this UE need to feed back or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, CSI-RS resource or CC for interference calculation, or the corresponding interferometry resource of combination of this UE CRS-RS resource determining according to the default bit getting or default bit sequence that in each group CSI report, this UE need to feed back or CRS-RS aggregation of resources, for CSI-RS resource or the CC of interference calculation.
Mode three: this parameter is for being used to indicate the value condition of order information/pre-coding matrix indication (RI/PMI) in each group CSI report, UE determines that whether RI in a plurality of CSI reports that this UE reports is identical or is equal to preset value according to the default bit getting.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
In another embodiment, also provide a kind of feedback software of CSI report, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored the feedback software of above-mentioned CSI report in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides a kind of feedback device of CSI report, be applied to base station, the feedback device of this CSI report can be for realizing feedback method and the preferred implementation of above-mentioned CSI report, carried out explanation, repeat no more, below the module relating in the feedback device of this CSI report is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Fig. 3 is according to the first structured flowchart of the CSI feedback device of the embodiment of the present invention, and as shown in Figure 3, this device comprises: configuration module 32, notification module 34, the first indicating modules 36, are described in detail said structure below.
Configuration module 32, for configuring the parameter of many group CSI report, wherein in this many group CSI report the parameter of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in these one or more CSI-RS resources;
Be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, be used to indicate these one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in this CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC;
Be used to indicate the value condition of RI/PMI in this each group CSI report;
Notification module 34, is connected to configuration module 32, for the parameter of many groups CSI report of configuration module 32 configurations is notified to UE; The first indicating module 36, is connected to the first notification module 34, is used to indicate the CSI report of the predetermined group of this UE feedback.
Fig. 4 is preferred the first structured flowchart according to the CSI feedback device of the embodiment of the present invention, as shown in Figure 4, notification module 34 comprises: the second indicating module 342, the 4th indicating module 344, the five indicating module 346, the seven indicating modules 348, the first indicating module 36 comprises: the 3rd indicating module 362, the 6th indicating module 364, the eight indicating modules 366, are described in detail said structure below.
Notification module 34 comprises: the second indicating module 342, for this parameter, it is the resource configuration parameter for one or more channel CSI-RS resources of channel measurement, CRS-RS resource of indicating by a bit or bit sequence that in each group CSI report, this UE need to feed back in high-level signaling or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in these one or more CRS-RS resources or this one or more CRS-RS resources, this bit is used to indicate this UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource.
The first indicating module 36 comprises: the 3rd indicating module 362, for this parameter, be the resource configuration parameter for one or more channel state information reference signals CSI-RS resources of channel measurement, one of in the following manner this UE of indication report each organize the aggregate combinations that CSI reports corresponding CSI resource or CSI-RS resource:
Indicate by one or more bits in the CSI request domain in dedicated control signaling DCI this base station;
Indicate by including the DCI place subframe position of this CSI request domain this base station.
Notification module 34 comprises: the 4th indicating module 344, for this parameter, be corresponding one of this each CSI-RS resource of one or more CSI-RS resources, the assignment information of a plurality of interferometry resources or be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, be used to indicate these one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in this CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC, by the high-level signaling CRS-RS resource that in each group CSI report, this UE need to feed back by this or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, CSI-RS resource or CC for interference calculation notify to UE, or the 5th indicating module 346, for the corresponding interferometry resource of combination of CRS-RS resource using that default bit or default bit sequence indicate that each this UE of group CSI report need to feed back or CRS-RS aggregation of resources, for CSI-RS resource or the CC of interference calculation.
The first indicating module 36 comprises: the 6th indicating module 364, for this parameter, it is the assignment information of one or more interferometry resources corresponding to this each CSI-RS resource of one or more CSI-RS resources, be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, be used to indicate these one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in this CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC, each group CSI that one of in the following manner this UE of indication reports reports the interferometry resource of the aggregate combinations of corresponding CSI resource or CSI-RS resource, CSI-RS resource or CC for interference calculation:
Indicate by one or more bits in the CSI request domain in DCI this base station;
Indicate by including the DCI place subframe position of this CSI request domain this base station.
The first notification module 34 comprises: the 7th indicating module 348, for this parameter, be whether the value condition ，Gai base station that is used to indicate this each group CSI report order information/pre-coding matrix indication RI/PMI is used default bit to indicate RI in a plurality of CSI reports that this UE reports identical or be equal to preset value.
The first indicating module 36 comprises: the 8th indicating module 366, for this parameter, be the value condition that is used to indicate this each group CSI report order information/pre-coding matrix indication RI/PMI, use comprise CSI request with DCI and GaiDCI place subframe position indicate this base station to use default bit to indicate RI in a plurality of CSI reports that this UE reports whether identical or be equal to preset value.
In another embodiment, also provide a kind of feedback software of CSI report, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored the feedback software of above-mentioned CSI report in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides a kind of feedback device of CSI report, be applied to UE, the feedback device of this CSI report can be for realizing feedback method and the preferred implementation of above-mentioned CSI report, carried out explanation, repeat no more, below the module relating in the feedback device of this CSI report is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Fig. 5 is according to the second structured flowchart of the CSI feedback device of the embodiment of the present invention, and as shown in Figure 5, this device comprises: the first acquisition module 52 and feedback module 54, be described in detail this structure below.
The first acquisition module 52, for receiving the parameter of the many groups of base station configuration CSI report, wherein in this many group CSI report the parameter of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in one or more CSI-RS resources;
Be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, be used to indicate these one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in this CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in each group CSI report;
Feedback module 54, is connected to the first acquisition module 52, for the predetermined CSI report of organizing of parameter feedback getting according to the first acquisition module 52 according to the indication of this base station.
Fig. 6 is preferred the second structured flowchart according to the CSI feedback device of the embodiment of the present invention, and as shown in Figure 6, this first acquisition module 52 comprises: the second acquisition module 522, the 3rd acquisition module 524, the 4th acquisition module 526, the five acquisition modules 528, are described in detail said structure below.
The second acquisition module 522, for this parameter, it is the resource configuration parameter for one or more CSI-RS resources of channel measurement, CRS-RS resource determining by bit in high-level signaling or bit sequence indication that in each group CSI report, this UE need to feed back according to this base station getting or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in these one or more CRS-RS resources or this one or more CRS-RS resources, this bit is used to indicate this UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource,
The 3rd acquisition module 524, for this parameter, it is the assignment information of one or more interferometry resources corresponding to this each CSI-RS resource of one or more CSI-RS resources, be used to indicate the parameter of corresponding relation between these one or more CSI-RS resources and interferometry resource, be used to indicate one or more CSI-RS resources and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in this CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC, obtain the corresponding interferometry resource of combination of CSI-RS resource that in this each group CSI report that this base station notifies by high-level signaling, this UE need to feed back or CRS-RS aggregation of resources or for the CSI-RS resource of interference calculation, or the 4th acquisition module 526, for the corresponding interferometry resource of combination of CRS-RS resource determining according to the default bit getting or default bit sequence that each this UE of group CSI report need to feed back or CRS-RS aggregation of resources or for the CSI-RS resource of interference calculation.
The 5th acquisition module 528, for this parameter, be the value condition that is used to indicate this each group CSI report order information/pre-coding matrix indication RI/PMI, according to the default bit getting, determine that whether RI in a plurality of CSI reports that this UE reports is identical or be equal to preset value.
Below in conjunction with preferred embodiment, describe, following preferred embodiment combines above-described embodiment and preferred implementation.
Preferred embodiment one
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, and the flexibility that can improve the non-periodic feedback of many communities reduces feedback overhead, thus elevator system performance.Fig. 7 is according to the flow chart of the non-periodic feedback of embodiment of the present invention Duo community CSI, and as shown in Figure 7, the method comprises the steps S702 and step S708:
Step S702: base station side can configure many group CSI report and also by high-level signaling, the configuration parameter of each group be notified to UE, wherein the configuration parameter of every group of CSI report comprise for the resource allocation information of the CSI-RS resource of channel measurement and following one of at least:
The assignment information of one or more interferometry resources that each CSI-RS resource is corresponding;
And the information of corresponding relation between indication CSI-RS resource and interferometry resource;
Be used to indicate the restricted information of each CSI report RI/PMI value.
Step S704: base station side is by the CSI request domain in UL DCI, and/or which assembly ULDCI place subframe position indication UE select put, and/or which group jamming resource configuration.By dynamic signaling, indicate UE side to report which group CSI reports.
As an execution mode preferably, base station side configuration is also notified the configuration information of organizing CSI report to UE more by high-level signaling, it is characterized in that the corresponding CSI-RS resource (or polymerization methods of CSI-RS resource) of each CSI report and interferometry resource corresponding to one or more this CSI-RS resource (or polymerization methods of CSI-RS resource).
Ratio preferably, base station side is every group to this many group CSI report in high-level signaling, use a bit or bit sequence indication UE may need to report the CSI-RS resource (or polymerization methods of CSI-RS resource) of CSI, the corresponding bit of the CSI-RS resource of each (or polymerization methods of CSI-RS resource) wherein, this bit is used to indicate UE and whether reports CSI corresponding to the CSI-RS resource that this bit is corresponding (or polymerization methods of CSI-RS resource).In this preferred implementation, base station side one of in the following manner or the combination of following mode indication UE which combination to report the CSI-RS resource (or polymerization methods of CSI-RS resource) of CSI according to.
Mode one: base station side is indicated by one or more bits in the CSI request domain in DCI;
Mode two: the subframe position at the DCI place by comprising CSI request domain is indicated.
As another execution mode preferably, base station side comprises every group in many group CSI report to this in high-level signaling, and in this group report of predefine, each will report the corresponding interferometry resource of CSI-RS resource (or polymerization methods of CSI-RS resource) of CSI or use a bit or bit sequence to indicate this group that each will report the corresponding interferometry resource of CSI-RS resource (or polymerization methods of CSI-RS resource) of CSI in reporting.Such predefine relation or bit or bit sequence also can have a plurality of, form a bit or bit sequence set, the jamming resource configuration of CSI-RS resource (or polymerization methods of CSI-RS resource) during a kind of this this group CSI of each predefine relation or bit or bit sequence indication reports.
Than preferably, base station side one of can be in the following manner or the combination indication UE of following mode select which in this predefine relation or bit or bit sequence set to be used to indicate one group of CSI to report corresponding interferometry resource distribution.
Mode one: base station side is indicated by one or more bits in the CSI request domain in DCI;
Mode two: the subframe position at the DCI place by comprising CSI request domain is indicated.
As another execution mode preferably, whether base station side can indicate UE the RI of each group CSI report and the value of PMI to be limited in report set configuration information.It is characterized in that, base station side is that the RI of each group CSI report and/or the value of PMI are indicated by high-level signaling.Than preferably, one of can be in the following manner or the combination indication UE of following mode:
Mode one: for every group of CSI report, base station side use 1 bit indication UE whether in restricted group the RI in each CSI report be identical, or the value that further limits RI is 1;
Mode two: for every group of CSI report, the DCI of base station side by comprising CSI request domain and place subframe position information indication UE thereof whether in restricted group the RI in each CSI report be identical, or the value that further limits RI is 1; ,
As at an embodiment preferably, in the above-described embodiment, for every group of CSI report, base station side is that each reports corresponding CSI-RS resource and/or interferometry resource distribution corresponding to each CSI-RS resource by high-level signaling, configures corresponding bit sequence parameter codebook subset restriction codebookSubsetRestriction.
When implementing, in order to realize the flexibility of base station indication, each CSI-RS resource and/or corresponding interferometry resource that the subframe position indication UE at the DCI place of base station side by comprising CSI request need to report, and/or whether the RI of each group CSI report and the value of PMI are limited, UE can obtain this DCI that comprises CSI request domain and place subframe position information thereof by blind check.In aforesaid way, can select bit or the bit sequence for the indication of CSI-RS resource or the indication of interferometry resource by this subframe position indication UE, for example, can be by one of following two kinds of modes:
Mode one: base station side sends the DCI that comprises CSI request in CSI reports the corresponding channel measurement resource of high level configuration and/or the subframe at interferometry resource place or subframe set;
Mode two: base station side is meeting SFNmodN=0, the subframe of N-1 sends the DCI that comprises CSI request, wherein SFN represents subframe numbers, N is one and is greater than 1 integer, use respectively this 0 ..., N selects bit or the bit sequence of for CSI-RS resource, indicating and/or indicating for interferometry resource.
In following preferred embodiment, consider that in a coordinate multipoint CoMP system, UE is configured to CoMP user, base station side is that UE configuration needs CSI-RS resource collection and interferometry resource or the interferometry resource collection measured, UE need to measure this CSI-RS resource and/or interferometry resource or interferometry resource collection, and need to report corresponding CSI report according to the order report of base station side.
Step S706:UE is known its place subframe position by blind check ULDCI, obtains the information in CSI request domain after decoding.
Step S708:UE is according to CSI request domain, and/or ULDCI place subframe position, determines CSI-RS combination and the corresponding interferometry resource that need to report, and/or RI/PMI value limits corresponding CSI report and reports to base station side.
Preferred embodiment two
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 8 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, base station side is 3 CSI-RS resources to be measured 1,2 and 3 of UE configuration by high-level signaling, notify 2 interferometry resources 1 and 2 simultaneously, configuration parameter comprises that the port number of each CSI-RS resource, CSI-RS configure, period of sub-frame and the skew of CSI-RS, with power ratio Pc of data RE etc., also comprise in addition the bit sequence of indicating interferometry resource RBZhong position, the period of sub-frame of jamming resource and skew etc.In addition, base station side is used 3 bits in a plurality of bits, for example 3 bit s1, s2 in 8 bits [s1 s2 s3 s4 s5 s6 s7 s8], s3 indication, or only use 3 bits [s1 s2 s3] to indicate respectively CSI- RS resource 1,2 and 3 whether to need to feed back CSI, the corresponding CSI-RS resource of each bit, 1 represents to need feedback, and 0 represents not need feedback.In addition, the CSI-RS resource that need to feed back for each, 3 bits for base station side [n1 n2 n3] indicate each CSI-RS resource corresponding to which in 2 interferometry resources, and 1 represents that jamming resource 1,0 represents jamming resource 2.
The combination of different bit sequence [s1 s2 s3] and [n1 n2 n3] is indicated different CSI reports to be combined in a subframe and is reported.Which combination is base station side report by dynamic signaling and/or the DCI subframe position indication UE that comprises CSI request domain, for example:
CSI request domain bit in DCI is " 00 " time, be configured to not carry out CSI and report;
CSI request domain bit in DCI is " 01 " time, being configured to [s1 s2 s3]=[100], [n1 n2 n3]=[100], represent to report a CSI report.In this report, channel coefficients H1 surveys in CSI-RS resource 1, and interference value is surveyed on jamming resource 1;
CSI request domain bit in DCI is " 10 " time, be configured to [s1 s2 s3]=[110], [n1 n2 n3]=[100], need to report 3 CSI reports, CSI1, CSI2, channel coefficients H1, H2, H3 survey in CSI- RS resource 1,2 respectively, and interference value is surveyed respectively on jamming resource 1,2;
CSI request domain bit in DCI is " 11 " time, be configured to [s1 s2 s3]=[1 1 1], [n1 n2 n3]=[1 1 0], need to report 3 CSI reports, CSI1, CSI2, CSI3, channel coefficients H1, H2, H3 record in CSI- RS resource 1,2,3 respectively, and interference value is surveyed respectively on jamming resource 1,1,2;
Preferred embodiment three
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 8 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, be with preferred embodiment two differences: in the configuration of each CSI request domain bit indication, the corresponding relation of [s1 s2 s3] and [n1 n2 n3] is to notify or predefined by high-level signaling, does not therefore need notice [n1 n2 n3] to indicate UE[s1 s2 s3] and the corresponding relation of [n1 n2 n3].
Preferred embodiment four
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 8 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.Fig. 9 triggers jamming resource configuration mode according to the subframe position at the up DCI place of passing through to comprise CSI request domain of the embodiment of the present invention, as shown in Figure 9, base station sends the DCI that has uplink authorization by the subframe at odd number subframe numbers or even number subframe numbers, the CSI report of indication UE feedback disturbance resource distribution
In the present embodiment, be with the difference of above preferred embodiment: the combination that the subframe position joint instructions CSI by CSI request domain and the DCI that comprises CSI request domain reports.With the various combination of CSI request domain indication [s1 s2 s3], each combination is corresponding to multiple interference combination [n1 n2 n3], and the subframe position of the DCI that base station side comprises CSI request domain by transmission indication UE selects which group [n1 n2 n3].For example:
When the CSI request domain bit in DCI is " 00 ", is configured to not carry out CSI and reports;
CSI request domain bit in DCI is " 01 " time, be configured to [s1 s2 s3]=[1 0 0], represent to report a CSI report, channel coefficients H1 surveys in CSI-RS resource 1.Configure in addition [n1 n2 n3]=[100], [n1 n2 n3]=[0 0 0], represent that respectively the interference value of CSI-RS resource 1 correspondence is surveyed on jamming resource 1 and jamming resource 2.When the subframe numbers SFNmod2=0 of the subframe position place of the DCI that comprises CSI request domain, select [n1 n2 n3]=[1 0 0], and during subframe numbers SFNmod2=1, select [n1 n2 n3]=[0 0 0], as shown in Figure 9.
When the CSI request domain bit in DCI is " 10 ", be configured to [s1 s2 s3]=[1 1 0], represent to report two CSI reports, channel coefficients H1, H2 survey respectively on CSI-RS resource 1 and 2.Configuration [n1 n2 n3]=[1 1 0] represent that the interference value of CSI- RS resource 1 and 2 correspondences all surveys on jamming resource 1 in addition, and [n1 n2 n3]=[0 1 0] represent that the interference value of CSI-RS resource 1 correspondence is surveyed on jamming resource 2 and the interference value of CSI-RS resource 2 correspondences is surveyed on jamming resource 1.During the subframe position place subframe numbers SFNmod2=0 of the DCI that comprises CSI request domain, select [n1 n2 n3]=[1 1 0], and during subframe numbers SFNmod2=1, select [n1 n2 n3]=[0 1 0].
In the present embodiment, the CSI request domain bit in DCI is " 11 " time, be configured to [s1 s2 s3]=[1 0 1], represent to report two CSI reports, channel coefficients H1, H3 survey respectively on CSI-RS resource 1 and 3.Configuration [n1 n2 n3]=[1 0 0] represent that the interference value of CSI-RS resource 1 correspondence detects on jamming resource 1 and the interference value of CSI-RS resource 3 correspondences detects on jamming resource 2 in addition, and [n1 n2 n3]=[0 0 1] represent that the interference value of CSI-RS resource 1 correspondence detects on jamming resource 2 and the interference value of CSI-RS resource 3 correspondences detects on jamming resource 1.During the subframe position place subframe numbers SFNmod2=0 of the DCI that comprises CSI request domain, select [n1 n2 n3]=[1 0 0], and during subframe numbers SFNmod2=1, select [n1 n2 n3]=[0 0 1].
Preferred embodiment five
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 8 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, be with the difference of above preferred embodiment: the bit in [n1 n2 n3] in the present embodiment, 0 represents that interferometry resource corresponding to corresponding CSI-RS resource is 1, and interferometry resource corresponding to the 1 corresponding CSI-RS resource of expression is 1 and 2.When corresponding 2 the interferometry resources of a CSI-RS resource, can be CQI1 and CQI2 based on 2 CQI of respectively with 2 interferometry Resource Calculations of this CSI-RS resource, and hypothesis be used identical RI/PMI.These two CQI can use respectively 4 bit feedback, also can feed back by difference form, and CQI1 4 bit feedback for example, CQI2 represents the difference with respect to CQI1 with 3 bits.
Preferred embodiment five
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 8 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, be with the difference of above preferred embodiment: the base station side in the present embodiment is UE 2 CSI-RS resources 1 of configuration and 2,3 interferometry resources 1,2 and 3.The corresponding interferometry resource 1 of CSI- RS resource 1 and 2, and CSI-RS resource 2 is corresponding to interferometry resource 1 and 3.Base station side is used s1, the s2 in 3 bits [s1 s2 s3], or 2bit[s1 s2] indicate respectively CSI-RS resource 1,2.The CSI-RS resource that need to feed back for each in addition, base station side can be with front 4 bits in 6 bits [nn1 nn2 nn3], or 4 bit [nn1 nn2] indicate each CSI-RS resource corresponding to which in 2 interferometry resources or its combination, for example nn1=00 represents jamming resource 1, nn1=01 represents jamming resource 2, nn1=10 represents to comprise in report corresponding to this CSI-RS resource 2 CQI, based on interferometry resource 1 and 2, calculate respectively, can be with indicating with difference form as the method in preferred embodiment four.
Preferably, base station side dynamically indicates UE to report the content of CSI can be in the following way by the bit in CSI request domain in the present embodiment:
CSI request domain bit in DCI is " 00 " time, be configured to not carry out CSI and report;
CSI request domain bit in DCI is " 01 " time, being configured to the CSI that [s1 s2]=[1 0] represent report CSI-RS resource 1 correspondence, [nn1 nn2]=[00 00] represent CSI-RS resource 1 corresponding interferometry resource 1 simultaneously;
CSI request domain bit in DCI is " 10 " time, being configured to the CSI that [s1 s2]=[0 1] represent report CSI-RS resource 2 correspondences, [nn1 nn2]=[00 01] represent CSI-RS resource 2 corresponding interferometry resources 2 simultaneously;
CSI request domain bit in DCI is " 11 " time, be configured to the CSI of [s1 s2]=[1 1] expression report CSI-RS resource 2 correspondences, [nn1 nn2]=[10 01] represent that CSI-RS resource 1 corresponding interferometry resource is 1 and 2 simultaneously, the CSI report of CSI-RS resource 1 correspondence needs to comprise two CQI, interferometry Resource Calculation based on different respectively, supposing has identical RI/PMI, the corresponding interferometry resource of CSI-RS resource 2 is 2 in addition, in its CSI report, only need to comprise a CQI.
Preferred embodiment seven
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 8 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, be with the difference of above preferred embodiment: the base station side in the present embodiment is every kind of a plurality of interferometry combination of resources of configuration in the combination of CSI-RS resource report, for example, and the subframe position of the DCI by comprising CSI request domain selects one groups in many group interferometry combination of resources:
For [s1 s2]=[1 1], configure [nn1 nn2]=[10 01], [nn1 nn2]=[00 01], [nn1 nn2]=[00 00] simultaneously.When GaiDCI place subframe numbers meets SNFmod2=0, select interference configuration [nn1 nn2]=[10 01], during SNFmod2=1, select interference configuration [nn1 nn2]=[00 01].
Preferred embodiment eight
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 8 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, be with the difference of above preferred embodiment: the base station side in the present embodiment also indicates by high-level signaling the selection that indicates whether to limit RI/PMI in each group CSI report configuration information.Base station side is 2 CSI-RS resources 1 of UE configuration and 2,2 interferometry resources 1 and 2, and use respectively bit sequence [s1 s2] indication UE whether to report CSI report corresponding to corresponding CSI-RS resource, with bit sequence [n1 n2] indication, UE is interferometry resource corresponding to CSI-RS resource.In addition indicate UE whether to limit the value of RI/PMI, or with 1 bit r.R=0 represents that in this group CSI report, CSI corresponding to all CSI-RS resources report right order rank=1, and select corresponding PMI on the basis of inferior hypothesis; During r=1 represents that this group CSI reports, the order indication RI of each self-optimizing can be independently chosen in CSI report corresponding to each CSI-RS resource.
For example, in the time of: the CSI request domain bit in DCI is " 00 ", be configured to not carry out CSI and report;
CSI request domain bit in DCI is " 01 " time, be configured to the CSI of [s1 s2]=[1 0] expression report CSI-RS resource 1 correspondence, [n1 n2]=[0 0] represent CSI-RS resource 1 corresponding interferometry resource 1 simultaneously, and r=1 shows the RI/PMI that does not limit CSI in this report in addition;
CSI request domain bit in DCI is " 10 " time, being configured to [s1 s2]=[0 1] represents to report the CSI of CSI-RS resource 2 correspondences to report, [n1 n2]=[0 1] represent that CSI-RS resource 2 is corresponding to interferometry resource 2 simultaneously, and r=1 represents not limit the RI/PMI of CSI in this report in addition;
CSI request domain bit in DCI is " 11 " time, being configured to [s1 s2]=[1 1] represents to report the CSI of CSI- RS resource 1 and 2 correspondences to report, [n1 n2]=[1 1] represent that CSI- RS resource 1 and 2 is all corresponding to interferometry resource 2 simultaneously, r=0 represents that the CSI report of CSI- RS resource 1 and 2 correspondences all should limit RI=1 in addition, and selects PMI separately on this hypothesis basis.
Preferred embodiment nine
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 7 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, be with the difference of above preferred embodiment: the subframe position of the DCI that the use in the present embodiment comprises CSI request domain indicates whether the RI/PMI of each report in the CSI report combination of CSI request domain indication to limit.
For example, in the time of: the CSI request domain bit in DCI is " 00 ", be configured to not carry out CSI and report;
CSI request domain bit in DCI is " 01 " time, be configured to the CSI of [s1 s2]=[1 0] expression report CSI-RS resource 1 correspondence, [n1 n2]=[0 0] represent CSI-RS resource 1 corresponding interferometry resource 1 simultaneously, the subframe position place subframe numbers SFNmod2=0 that comprises in addition the DCI of CSI request domain, does not limit the RI/PMI of CSI in this report;
CSI request domain bit in DCI is " 10 " time, being configured to [s1 s2]=[0 1] represents to report the CSI of CSI-RS resource 2 correspondences to report, [n1 n2]=[0 1] represent that CSI-RS resource 2 is corresponding to interferometry resource 2 simultaneously, the subframe position place subframe numbers SFNmod2=0 that comprises in addition the DCI of CSI request domain, does not limit the RI/PMI of CSI in this report;
CSI request domain bit in DCI is " 11 " time, being configured to [s1 s2]=[1 1] represents to report the CSI of CSI- RS resource 1 and 2 correspondences to report, [n1 n2]=[1 1] represent that CSI- RS resource 1 and 2 is all corresponding to interferometry resource 2 simultaneously, the subframe position place subframe numbers SFNmod2=1 that comprises in addition the DCI of CSI request domain, the CSI report that represents CSI- RS resource 1 and 2 correspondences all should limit RI=1, and selects PMI separately on this hypothesis basis.
Preferred embodiment ten
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 7 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, be with the difference of above preferred embodiment: in the present embodiment, in the subframe position of the DCI by comprising CSI request domain, indicate CSI-RS resource, the interferometry resource that one group of CSI is reported, the value of whether carrying out RI/PMI to limit selection, except by meeting SFNmodN=0, the subframe of N-1 is indicated respectively the method for different choice, also comprises following mode:
When base station side has configured a plurality of subframe set, for example, configure the gap frame Almost Blank Subframe(ABS that in LTE version 10 agreements, 80ms is the cycle) for the protection of macro base station, cover the edge UE of access Microcell Pico to avoid being subject to the strong jamming of macrocell.In gap frame ABS, macrocell reduces the interference to the edge UE of Pico by not sending the mode controling and data signal.Base station side is UE configuration two cover subframe set in this case, gathers 1 and set 2.UE measures CSI 1 and CSI 2 in the CSI-RS resource and the interferometry resource that are arranged in two subframe set respectively.High-level signaling can configure different CSI-RS resources by high level for each subframe set, and/or interferometry resource, and/or whether limits the indication of RI/PMI.As shown in figure 10, base station sends the DCI that has uplink authorization in different subframe set, and indication UE feeds back the CSI of different subframe set, and wherein different subframe set may have different jamming resource configurations.When this DCI that comprises CSI request domain is positioned at subframe set 1, bit in CSI request domain is used to indicate corresponding to the measurement of subframe set 1 and feedback configuration parameter, and the DCI that comprises CSI request domain is while being positioned at subframe set 2, the bit in CSI request domain is used to indicate corresponding to the measurement of subframe set 2 and feedback configuration parameter.For example, in subframe set 1, when CSI request domain is " 10 " time, configuration [s1 s2]=[1 1], [n1 n2]=[0 0], r=1, and in subframe set 2, can configure [s1 s2]=[1 1], [n1 n2]=[1 1], r=1, the interferometry resource of CSI-RS resource 1 and 2 in subframe set 1 is the interferometry resource 1 in subframe set 1, and interferometry resource in subframe set 2 is the interferometry resource 2 in subframe set 2.
Preferred embodiment 11
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 11 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 1 interferometry resource.
In the present embodiment, be with the difference of above preferred embodiment: in the present embodiment, base station only configures an interferometry resource, and this interferometry resource hypothesis is only disturbed from outside cooperation set, the interference outside node corresponding to CSI-RS resource that these 3 needs are measured.When the CSI that disturbs hypothesis is formulated in base station indication UE report, UE is when calculating interference, if disturb the interference having comprised in cooperation set, on the basis of disturbing outside cooperation set, add the interference of the omnidirectional channel calculating measuring on the CSI-RS that interfering nodes is corresponding, thereby obtain, comprise the CSI that certain cooperative node disturbs.For example:
Suppose that the node of CSI-RS resource 1 correspondence in Fig. 8 is for sending the node of useful signal, the node of CSI- RS resource 2 and 3 correspondences is interfering nodes, and the interference of CSI-RS resource 1 correspondence and noise covariance matrix can calculate as follows:
R nn = I out + α 2 H 2 H 2 H + α 3 H 3 H 3 H
Wherein, I outfor the outer interference of this cooperation set, α 1, α 2be two constant coefficients, H 2, H 3for the omnidirectional channel matrix parameter that UE measures respectively on CSI- RS resource 2 and 3, subscript () hrepresent conjugate transpose.Utilize R nnthe method of calculating SINR can be:
SINR = 1 . / ( H 1 H R nn - 1 H 1 )
Wherein ./represent that point removes, i.e. the removing of corresponding element in matrix or vector.
In above-described embodiment, indicate the method for interferometry resource, for indicating respectively the node for interference calculation, be used to indicate in other words the R in interference calculation in the present embodiment nn=I out, or R nn = I out + α 2 H 2 H 2 H , Or R nn = I out + α 3 H 3 H 3 H , Or R nn = I out + α 2 H 2 H 2 H + α 3 H 3 H 3 H .
Preferred embodiment 12
This preferred embodiment provides a kind of configuration signal method of non-periodic feedback, Figure 8 shows that base station side is that UE has configured 3 CSI-RS resources that needs are measured, and 2 interferometry resources.
In the present embodiment, be with the difference of above preferred embodiment: in the present embodiment, base station configuration UE is operated in carrier aggregation mode, and be 2 component carrier CC of UE configuration, each component carrier is corresponding to the CSI-RS resource shown in a set of Figure 11, and 1 interferometry resource.Base station side is that each CC configures 3 groups of CSI and reports by high-level signaling, and with 2 bits indication UE in the CSI request domain of DCI form 0 or 4, feeds back respectively which group CSI report of one of them CC.It is that base station side also needs to indicate this CSI report of UE for which CC.By sending the resource location of this DCI form 0 or 4 information, which CC indicates UE be to base station side.
This resource location can be subframe numbers, if for example this DCI sends in the subframe of even number subframe numbers, and the CSI report of indicating UE to feed back first CC, and the CSI which assembly of 2 these CC of bit indication feedback by CSI request domain is put reports; If if this DCI sends in the subframe of odd number subframe numbers, indicate the CSI report of second CC of UE feedback, and the CSI which assembly of 2 these CC of bit indication feedback by CSI request domain is put reports.
This resource location also can be indicated by sending the numbering of first control channel unit CCE of this DCI, the polymerization rank of the physical downlink control channel PDCCH that for example described DCI is corresponding is 2,, according to there being 6 possible PDCCH in LTE agreement Qi search volume, first CCE of each PDCCH numbers N cCEbe respectively 0 to 5.Base station side sends this DCI and indicates UE to feed back the CSI report of first CC on even-numbered, on odd-numbered, send the CSI report that this DCI indicates second CC of UE feedback, and which the group CSI that indicates UE to feed back indicated CC by 2 bits in the CSI request domain in this DCI reports.
By above-described embodiment, CSI report method and device are provided, overcome Liao Duo community non-periodic feedback need to solve grouping less, thereby too much CSI report is put in a grouping, increased feedback overhead, reduced the problem of feedback flexibility, can also to the report of RI, be configured flexibly.Thereby improved the flexibility of CSI feedback, and reduced signaling consumption.It should be noted that, these technique effects are not that above-mentioned all execution modes have, and some technique effect is that some preferred implementation just can obtain.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (21)

1. the feedback method that channel condition information CSI reports, is characterized in that comprising:
The parameters of the many groups of base station configuration CSI report, in wherein said many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described a plurality of CSI-RS resource;
Be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described one or more CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in described each group CSI report;
Described base station notifies the parameter of described many group CSI report to user equipment (UE), and indicates the CSI report of the predetermined group of described UE feedback.
2. method according to claim 1, is characterized in that, described base station is notified the parameter of described many group CSI report to UE and comprised:
Described parameter is the resource configuration parameter for one or more CSI-RS resources of channel measurement, CRS-RS resource that described base station indicates by a bit or bit sequence that described in each group CSI report, UE need to feed back in high-level signaling or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in described one or more CRS-RS resource or described one or more CRS-RS resource, described bit is used to indicate described UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource.
3. method according to claim 2, is characterized in that, the CSI report of the predetermined group of described base station indication UE feedback comprises:
Described parameter is the resource configuration parameter for one or more CSI-RS resources of channel measurement, and described base station each group CSI that one of in the following manner the described UE of indication reports reports the aggregate combinations of corresponding CSI resource or CSI-RS resource:
Indicate by one or more bits in the CSI request domain in dedicated control signaling DCI described base station;
Indicate by including the DCI place resource location of described CSI request domain described base station.
4. method according to claim 3, is characterized in that, described base station comprises by including the DCI place resource location indication of described CSI request domain:
Described base station sends the DCI that comprises CSI request in described CSI reports the subframe at channel measurement resource place of corresponding high level configuration or subframe set; Or
Described base station is meeting SFNmodN=0 ..., the subframe of N-1 sends the DCI that comprises CSI request, wherein SFN represents subframe numbers, and N is greater than 1 integer, described 0,, N-1 is used to indicate the aggregate combinations that described each group CSI reports corresponding CSI resource or CSI-RS resource; Or
Described base station is meeting N cCEmodN=0 ..., the control channel unit CCE of N-1 sends the DCI that comprises CSI request, wherein N as original position cCErepresent for transmitting the numbering of first CCE of all possible PDCCH in first CCE search volume of the physical downlink control channel PDCCH that the polymerization rank of described DCI is L, N is greater than 1 integer, described 0,, N-1 is used to indicate the aggregate combinations that described each group CSI reports corresponding CSI resource or CSI-RS resource.
5. method according to claim 1, is characterized in that, described base station is notified the parameter of described many group CSI report to UE and comprised:
Described parameter is the assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource, be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described one or more CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier CC, the CSI-RS resource that described base station need to be fed back UE described in described each group CSI report by high-level signaling, the corresponding interferometry resource of combination of CSI-RS aggregation of resources, CSI-RS resource or CC for interference calculation notify to UE, or
CRS-RS resource that described base station is used that default bit or default bit sequence indicate that described in each group CSI report, UE need to feed back or the corresponding interferometry resource of combination of CRS-RS aggregation of resources or for CSI-RS resource or the CC of interference calculation.
6. method according to claim 5, is characterized in that, the CSI report of the predetermined group of described base station indication UE feedback comprises:
Described parameter is the assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource or the parameter that is used to indicate corresponding relation between described one or more CSI-RS resource and interferometry resource or for the CSI-RS resource of interference calculation, described base station each group CSI that one of in the following manner the described UE of indication reports report corresponding CSI resource or CSI-RS resource aggregate combinations interferometry resource or for CSI-RS resource or the CC of interference calculation:
Indicate by one or more bits in the CSI request domain in DCI described base station;
Indicate by including the DCI place resource location of described CSI request domain described base station.
7. method according to claim 6, is characterized in that, described base station comprises by including the DCI place resource location indication of described CSI request domain:
Described base station sends the DCI that comprises CSI request in described CSI reports the subframe at interferometry resource place of corresponding high level configuration or subframe set; Or
Base station sends the DCI that comprises CSI request in described CSI reports the subframe at the CSI-RS resource place for interference calculation of corresponding high level configuration or subframe set; Or
Base station is meeting SFNmodN=0 ..., the subframe of N-1 sends the DCI that comprises CSI request, and wherein SFN represents subframe numbers, and N is greater than 1 integer, described 0 ..., N-1 is used to indicate described interferometry resource or for CSI-RS resource or the CC of interference calculation.
Described base station is meeting N cCEmodN=0 ..., the control channel unit CCE of N-1 sends the DCI that comprises CSI request, wherein N as original position cCErepresent for transmitting the numbering of first CCE of PDCCH all in first CCE search volume of physical downlink control channel PDCCH of described DCI, N is greater than 1 integer, described 0,, N-1 is used to indicate described interferometry resource or for CSI-RS resource or the CC of interference calculation.
8. method according to claim 1, is characterized in that, described base station is notified the parameter of described many group CSI report to UE and comprised:
Described parameter is the value condition that is used to indicate order information/pre-coding matrix indication RI/PMI in described each group CSI report, and whether described base station is used default bit to indicate RI in a plurality of CSI reports that described UE reports identical or be equal to preset value.
9. method according to claim 8, is characterized in that, the CSI report of the predetermined group of described base station indication UE feedback comprises:
Described parameter is the value condition that is used to indicate order information/pre-coding matrix indication RI/PMI in described each group CSI report, described base station use comprise CSI request with DCI and GaiDCI place resource location indicate described base station to use default bit to indicate RI in a plurality of CSI reports that described UE reports whether identical or be equal to preset value.
10. according to the method described in any one in claim 1 to 9, it is characterized in that, the parameter of the many groups of base station configuration CSI report comprises:
Described base station is CSI-RS resource and/or bit sequence parameter codebook subset restriction codebooksubsetRestriction corresponding to interferometry resource distribution corresponding to described CSI-RS resource in each the CSI report in described a plurality of report.
The feedback method of 11. 1 kinds of channel condition information CSI reports, is characterized in that comprising:
User equipment (UE) obtains the parameter of many groups CSI report of base station configuration, in wherein said many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource;
Be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in described each group CSI report;
Described UE is according to the CSI report of the predetermined group of the indication feedback of described base station.
12. methods according to claim 11, is characterized in that, the parameter that described UE obtains described many group CSI report is notified to user equipment (UE) and comprised:
Described parameter is the resource configuration parameter for one or more channel state information reference signals CSI-RS resources of channel measurement, CRS-RS resource that described UE determines by bit in high-level signaling or bit sequence indication that described in each group CSI report, UE need to feed back according to the described base station getting or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in described one or more CRS-RS resource or described one or more CRS-RS resource, described bit is used to indicate described UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource,
Described parameter is the assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource, be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC, described UE obtains the CSI-RS resource that described in described each group CSI report of notifying by high-level signaling described base station, UE need to feed back, the corresponding interferometry resource of combination of CRS-RS aggregation of resources, CSI-RS resource or CC for interference calculation, or described UE determines according to the default bit getting or default bit sequence a CRS-RS resource, the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or the described CC that described in each group CSI report, UE need to feed back.
Described parameter is the value condition that is used to indicate RI/PMI in described each group CSI report, and described UE determines that whether RI in a plurality of CSI reports that described UE reports is identical or is equal to preset value according to the default bit getting.
The feedback device of 13. 1 kinds of channel condition information CSI reports, be applied to base station, it is characterized in that comprising: configuration module, for configuring the parameter of many group CSI report, in wherein said many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource;
Be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in described each group CSI report;
Notification module, for notifying the parameter of described many group CSI report to user equipment (UE);
The first indicating module, is used to indicate the CSI report of the predetermined group of described UE feedback.
14. devices according to claim 13, is characterized in that, described notification module comprises:
The second indicating module, for described parameter, it is the resource configuration parameter for one or more channel state information reference signals CSI-RS resources of channel measurement, CRS-RS resource of indicating by a bit or bit sequence that described in each group CSI report, UE need to feed back in high-level signaling or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in described one or more CRS-RS resource or described a plurality of CRS-RS resource, described bit is used to indicate described UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource.
15. devices according to claim 14, is characterized in that, described the first indicating module comprises:
The 3rd indicating module, for described parameter, be the resource configuration parameter for one or more channel state information reference signals CSI-RS resources of channel measurement, one of in the following manner the described UE of indication report each organize the aggregate combinations that CSI reports corresponding CSI resource or CSI-RS resource:
Indicate by one or more bits in the CSI request domain in dedicated control signaling DCI described base station;
Indicate by including the DCI place resource location of described CSI request domain described base station.
16. devices according to claim 13, is characterized in that, described notification module comprises:
The 4th indicating module, for described parameter, be the assignment information of one or more interferometry resources corresponding to described each CSI-RS resource of one or more CSI-RS resource or the parameter that is used to indicate corresponding relation between described one or more CSI-RS resource and interferometry resource, and/or be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier, the CRS-RS resource that UE described in described each group CSI report need to be fed back by high-level signaling or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or described CC notify to UE, or
The 5th indicating module, for CRS-RS resource or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or the described CC that uses that default bit or default bit sequence indicate that described in each group CSI report, UE need to feed back.
17. methods according to claim 16, is characterized in that, described the first indicating module comprises:
The 6th indicating module, for described parameter, it is the assignment information of one or more interferometry resources corresponding to described each CSI-RS resource of one or more CSI-RS resource, be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between CC, each group CSI that one of in the following manner the described UE of indication reports reports corresponding CSI resource, the interferometry resource of the aggregate combinations of CSI-RS resource, the described CSI-RS resource for interference calculation or described CC:
Indicate by one or more bits in the CSI request domain in DCI described base station;
Indicate by including the DCI place resource location of described CSI request domain described base station.
18. devices according to claim 13, is characterized in that, described notification module comprises:
The 7th indicating module, for described parameter, be the value condition that is used to indicate described each group CSI report order information/pre-coding matrix indication RI/PMI, whether described base station is used default bit to indicate RI in a plurality of CSI reports that described UE reports identical or be equal to preset value.
19. devices according to claim 18, is characterized in that, described the first indicating module comprises:
The 8th indicating module, for described parameter, be the value condition that is used to indicate described each group CSI report order information/pre-coding matrix indication RI/PMI, use comprise CSI request with DCI and GaiDCI place subframe position indicate described base station to use default bit to indicate RI in a plurality of CSI reports that described UE reports whether identical or be equal to preset value.
The feedback device of 20. 1 kinds of channel condition information CSI reports, is applied to UE, it is characterized in that comprising:
The first acquisition module, for obtaining the parameter of the many groups of base station configuration CSI report, in wherein said many group CSI report the parameters of each group CSI report comprise for the resource configuration parameter of one or more channel state information reference signals CSI-RS resources of channel measurement and following one of at least:
The assignment information of one or more interferometry resources corresponding to each CSI-RS resource in described one or more CSI-RS resource;
Be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier;
Be used to indicate the value condition of order information/pre-coding matrix indication RI/PMI in described each group CSI report;
Feedback module, for the CSI report according to the predetermined group of the indication feedback of described base station.
21. devices according to claim 20, is characterized in that, described the first acquisition module comprises:
The second acquisition module, for described parameter, it is the resource configuration parameter for one or more channel state information reference signals CSI-RS resources of channel measurement, CRS-RS resource determining by bit in high-level signaling or bit sequence indication that described in each group CSI report, UE need to feed back according to the described base station getting or the combination of CRS-RS aggregation of resources, wherein, the corresponding bit of aggregate combinations of each the CRS-RS resource in each the CRS-RS resource in described one or more CRS-RS resource or described one or more CRS-RS resource, described bit is used to indicate described UE and whether reports CSI-RS resource that this bit is corresponding or the corresponding CSI of aggregate combinations of CRS-RS resource,
The 3rd acquisition module, for described parameter, it is the assignment information of one or more interferometry resources corresponding to described each CSI-RS resource of one or more CSI-RS resource, be used to indicate the parameter of corresponding relation between described one or more CSI-RS resource and interferometry resource, be used to indicate described one or more CSI-RS resource and for the parameter of corresponding relation between the CSI-RS resource of interference calculation, and/or be used to indicate in described CSI-RS resource and carrier aggregation the parameter of corresponding relation between component carrier, obtain CSI-RS resource that described in described each group CSI report that described base station notifies by high-level signaling, UE need to feed back or the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or described CC, or the 4th acquisition module, for determining according to the default bit getting or default bit sequence a CRS-RS resource, the corresponding interferometry resource of combination of CRS-RS aggregation of resources, the described CSI-RS resource for interference calculation or the described CC that described in each group CSI report, UE need to feed back,
The 5th acquisition module, for described parameter, be the value condition that is used to indicate described each group CSI report order information/pre-coding matrix indication RI/PMI, according to the default bit getting, determine that whether RI in a plurality of CSI reports that described UE reports is identical or be equal to preset value.
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