CN102355322A - Transmission method and transmission device for channel quality indicator information - Google Patents

Transmission method and transmission device for channel quality indicator information Download PDF

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CN102355322A
CN102355322A CN2011102078990A CN201110207899A CN102355322A CN 102355322 A CN102355322 A CN 102355322A CN 2011102078990 A CN2011102078990 A CN 2011102078990A CN 201110207899 A CN201110207899 A CN 201110207899A CN 102355322 A CN102355322 A CN 102355322A
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subband
carrier
descending
carrier group
terminal
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高雪娟
沈祖康
林亚男
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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Abstract

The embodiment of the invention discloses a transmission method and a transmission device for channel quality indicator information, which relate to the technical field of wireless communications and are used for solving the problem how to simultaneously transmit sub-band CQI (Channel Quality Indicator) of a plurality of downlink carriers. In the method, a terminal perform associated sub-band selection on the plurality of downlink carriers which need to feed back sub-band CQI information at the current uplink sub-frame; the terminal determines the sub-band CQI information which is obtained after the associated sub-band selection and needs to be fed back to a base station at the current uplink sub-frame; and the terminal feeds back the sub-band CQI information obtained after the associated sub-band selection to the base station at the current uplink sub-frame, or simultaneously feeds back the sub-band CQI information obtained after the associated sub-band selection and other uplink control information needed to be fed back at the current uplink sub-frame to the base station at the current uplink sub-frame. The method and the device can support simultaneous transmission of the sub-band CQI of the plurality of carriers, thereby improving the accuracy of downlink scheduling of the base station.

Description

The transmission method of channel quality indication (CQI) information and equipment
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of transmission method and equipment of channel quality indication (CQI) information.
Background technology
For long-term evolution upgrading (Long Term Evolution Advanced; LTE-A) system is for supporting than Long Term Evolution (Long Term Evolution, LTE) the wideer system bandwidth of system; Can be with distributing to some spectrum aggregatings of existing systems; Gather into big bandwidth and supply with long-term evolution multi-carrier system use, i.e. carrier aggregation (Carrier Aggregation, CA) technology.The up-downgoing carrier wave can asymmetricly dispose in this moment system, and promptly the user may take N1 >=1 carrier wave and carries out downlink transfer, and N2 >=1 carrier wave carries out uplink, and is as shown in Figure 1.
In LTE-A version 10 (Rel-10) the CA system; In order effectively to carry out carrier dispatching and link circuit self-adapting process; The base station need obtain user terminal (User Equipment; (Channel State Information CSI), carries out multi-carrier scheduling with this to the channel condition information of a plurality of descending carriers of UE) measuring.CSI can comprise order indication (Rank Indicator; RI) information, channel quality indication (Channel Quality Indicator; CQI) information and pre-coding matrix indication (Precoding Matrix Indicator; PMI) information, wherein CQI information is divided into broadband CQI (Wide-band CQI) information and subband CQI (Sub-band CQI) information again.Wherein whether subband CQI reports pattern according to reporting PMI to be divided into following two kinds simultaneously:
First kind, pattern (Mode) 2-0 (subband CQI reports pattern, no PMI):
Type (Type) 3 reports that report in the subframe (only effective): UE to report to comprise a RI at RI for transmission mode 3;
Report in the subframe at CQI: UE need report Type 4 report that comprises a broadband CQI, though RI whether greater than 1, this CQI only comprises the CQI of code word 0; For transmission mode 3, CQI calculates based on the RI that reports at last, for other transmission modes, calculates based on RI=1;
CQI at selected subband reports in the subframe: UE should include N in every J portions of bandwidth jSelect a first-selected subband in the subband set of subband; Report comprise one should the first-selection subband CQI and Type 1 report of L bit flag that should the first-selection subband; This CQI value only is reflected in the transmission on the selected subband in the portions of bandwidth that determines in the step; Type 1 report of each portions of bandwidth will each continuous report opportunity successively repeating query report, though RI whether greater than 1, this CQI only comprises the CQI of code word 0; For transmission mode 3, the selection of first-selected subband and the CQI of this subband calculate based on last RI that reports, and for other transmission mode, calculate based on RI=1.
Mode 2-1 (subband CQI+PMI reports pattern):
Report in the subframe (, then only effective): UE need report Type 3 reports that comprise a RI for transmission mode 4,8 and 9 if the port number of CSI-RS is configured to 2 or 4 at RI;
RI in the transmission mode 9 that has disposed 8 port CSI-RS reports in the subframe: UE reports and comprises a RI value and the indication of precoding type (precoder type indication, PTI) Type 6 reports of value;
CQI and PMI report in the subframe in the broadband: UE chooses a PMI value from codebook subset; And:
Need report a Type 2 reports to the transmission mode except transmission mode 9: UE; Comprise: a broadband CQI value; This CQI is that hypothesis all uses the above-mentioned single PMI that chooses to calculate in all subbands, and a PMI who selects (wideband PMI) value; When RI＞1, also comprise space, the broadband differential CQI value of one 3 bit;
To transmission mode 9: when PTI=0, UE need report the Type2a report of a PMI value that comprises a selection; When PTI=1 or CSI-RS port are 2 or 4; UE need report a Type2b report; Comprise: a broadband CQI value, this CQI is that hypothesis all uses the above-mentioned single PMI that chooses to calculate in all subbands, and the 2nd PMI value of a selection; When RI＞1, also comprise space, the broadband differential CQI value of one 3 bit;
For transmission mode 4,8 and 9, the CQI value is to be that condition is calculated with the last RI that reports, and for other transmission modes, is that condition is calculated with RI=1;
CQI at selected subband reports in the subframe: UE should include N in every J portions of bandwidth jSelect a first-selected subband in the subband set of subband;
Transmission mode except the transmission mode 9 that has disposed 8 port CSI-RS: UE is Type1 report of each portions of bandwidth transmission opportunity each self-contained continuous reporting; Comprise: the CQI value of code word 0 in this first-selection subband; And the L bit flag of first-selected subband, the transmission on the subband that this CQI value is only selected in the portions of bandwidth of the last step decision of reaction is when RI＞1; Comprise that also extra 3 bits represent the subband space differential CQI value of code word 1 with respect to the CQI offset level of code word 0; Wherein, code word 1 offset level=code word 0 subband CQI sequence number-code word 1 subband CQI sequence number, and suppose to use in all subbands the single PMI that reports recently to calculate;
To having disposed the transmission mode 9 of 8 port CSI-RS: when PTI=0; UE needs to report chance to report a Type2b report continuously at each, comprising: a broadband CQI value, and this CQI is that hypothesis all uses single PIM to calculate in all subbands; And the 2nd PMI value of selecting from codebook subset; When RI＞1, also comprise one 3 bit width carrying space differential CQI value, its differential mode is the same;
To transmission mode 9: when PTI=1; UE self-contained continuously reports send a Type1a report for each portions of bandwidth opportunity at each, comprises: the CQI value of code word 0 in this first-selection subband, and the L bit flag of first-selected subband; Transmission on the subband of selecting in this CQI value portions of bandwidth that only a last step of reaction determines; When RI＞1, also comprise extra 3 bit subband space differential CQI values, its differential mode is the same; And suppose in all subbands, to use the single PMI that reports recently to calculate, and the 2nd PMI value of from codebook subset, selecting;
For transmission mode 4,8 and 9, the selection of first-selected subband and subband CQI value are calculated based on last RI that reports, and for other transmission mode, calculate based on RI=1.
In a sub-frame of uplink, an only corresponding a kind of CSI reporting types of carrier wave (Reporting Type), as shown in table 1; CQI reports pattern for subband; Maximum CSI number of bits of feedback is 11 bits (wherein, subband index L is 1 or 2 bits), and cycle CSI transmission of Information adopts PUCCH format 2/2a/2b in the LTE-A Rel-10 system; Its maximum transfer capacity is 13 bits, so only is supported in the CSI information of a descending carrier of feedback in the sub-frame in the Rel-10 system.If exist a plurality of carrier waves need feed back CSI in the current subframe simultaneously, then select the CSI with carrier wave of high priority CSI reporting type to report according to Type priority: that priority is the highest is Types 3,5; 6, secondly 2a is Types 2; 2b, 2c, 4; That priority is minimum is Types 1,1a.If exist a plurality of carrier waves to have identical high priority CSI reporting type simultaneously, then select to report the CSI of the carrier wave of minimum carrier index according to carrier index.Therefore the transmission opportunity of subband CQI reporting types is very little.
Figure BDA0000077908680000041
Figure BDA0000077908680000051
Table 1
In the last table, antenna ports is an antenna port.Spatial multiplexing is a spatial reuse.
In addition, in LTE-A Rel-10 CA system, for the UE that has disposed a plurality of carrier waves; If only at main carrier (Primary Cell; Pcell) receive data, then continue to use the Rel-8/9 behavior, i.e. configuration according to higher level parameters simultaneousAckNackAndCQI determines whether to support affirmative acknowledgement (ACK)/negative response (NACK) and cycle CSI in Physical Uplink Control Channel (PUCCH), to transmit; If support; Then adopt PUCCH format 2 (for extended cyclic prefix (CP, Cyclic Prefix)) or PUCCH format 2a/2b (for conventional CP) transferring ACK/NACK and CSI simultaneously, if do not support; Then UE will lose cycle CQI/PMI/RI, feeding back ACK/NACK; If receive data at a plurality of carrier waves, then do not support ACK/NACK and cycle CQI/PMI/RI in PUCCH, to transmit, this moment, UE always lost cycle CQI/PMI/RI, feeding back ACK/NACK.
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
How to support at present the subband CQI of a plurality of descending carriers to transmit simultaneously and also do not have concrete scheme.
Summary of the invention
The embodiment of the invention provides a kind of transmission method and equipment of channel quality indication (CQI) information, and how simultaneously the subband CQI that is used to solve a plurality of descending carriers the problem of transmission.
A kind of CQI transmission of Information method, this method comprises:
The terminal is selected uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information;
Said terminal is confirmed in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected;
Said terminal is in the subband CQI information of current sub-frame of uplink after the said associating subband of base station feedback is selected, and the subband CQI information of perhaps feeding back simultaneously after said associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.
A kind of method of reseptance of CQI information, this method comprises:
The bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected is confirmed in the base station;
Subband CQI information bit after said base station is selected according to said associating subband, to the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
A kind of terminal, this terminal comprises:
Select module, be used for selecting uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information;
Determination module is used to confirm in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected;
Feedback module; Be used in the subband CQI information of current sub-frame of uplink after the said associating subband of base station feedback is selected, the subband CQI information of perhaps feeding back simultaneously after said associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.
A kind of base station, this base station comprises:
Determination module is used for confirming the bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected;
Receiver module; Be used for according to the subband CQI information bit after the said associating subband selection; To the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
In the scheme that the embodiment of the invention provides; The terminal is selected uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information; Confirm in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected; And in the subband CQI information of current sub-frame of uplink after base station feedback associating subband is selected, the subband CQI information of perhaps feeding back simultaneously after the associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.It is thus clear that; The present invention can select through multicarrier being united subband; Compress the subband CQI number of bits of feedback of a plurality of descending carriers, thus transmission when supporting the subband CQI of multicarrier, to improve the CQI efficiency of transmission; Make the base station in time obtain the CQI information of multicarrier, improve the accuracy of descending scheduling.
Description of drawings
Fig. 1 is a carrier aggregation system sketch map of the prior art;
The method flow sketch map that Fig. 2 provides for the embodiment of the invention;
Another method schematic flow sheet that Fig. 3 provides for the embodiment of the invention;
The device structure sketch map that Fig. 4 provides for the embodiment of the invention;
Another device structure sketch map that Fig. 5 provides for the embodiment of the invention.
Embodiment
The problem of how transmitting for the subband CQI that solves a plurality of descending carriers; The embodiment of the invention provides a kind of CQI transmission of Information method; In this method; The terminal is to uniting after subband selects at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information; In the subband CQI information that current sub-frame of uplink obtains after base station feedback associating subband is selected, the subband CQI information of perhaps feeding back simultaneously after the associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.
Referring to Fig. 2, the CQI transmission of Information method that the embodiment of the invention provides may further comprise the steps:
Step 20: the terminal is selected uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information;
Step 21: the terminal is confirmed in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected;
Step 22: the terminal is in the subband CQI information of current sub-frame of uplink after base station feedback associating subband is selected, and the subband CQI information of perhaps feeding back simultaneously after the associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.
As a kind of execution mode, the concrete realization of step 20 can be following:
The first-selected subband terminal is chosen a subband on one of them descending carrier and selected as the associating subband in said a plurality of descending carriers after;
Accordingly, the concrete realization of step 21 is following:
The terminal confirms that the subband CQI information after said associating subband is selected comprises that the said first-selected subband of choosing of K bit CQI information, indication of the said first-selected subband of choosing belongs to the A bit carrier wave indication information of descending carrier and the L bit subband identification information of the said first-selected subband of choosing; Wherein, said K, A and L are positive integer.
Wherein,
Figure BDA0000077908680000081
N is the number of the descending carrier of said terminal configuration/activation.
Definite method of L specifically can be following:
The terminal is according to the sub-band division mode of the descending carrier of each the configuration/activation of said needs in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, confirms the bit number of subband identification information of the descending carrier correspondence of said each configuration/activation; Here; The sub-band division mode of descending carrier comprises that this descending carrier is divided into the size (the fast RB number of the transmission that comprises) that several portions of bandwidth (Bandwidth Part), each portions of bandwidth are divided into several subbands (Subband) and each subband; The subband identification information is used for representing the numbering of the subband of a portions of bandwidth; So; Can at first confirm the needed bit number of whole subbands that comprises in each portions of bandwidth of this descending carrier of expression; As the subband identification information bit number that this portions of bandwidth needs, select the bit number of the maximum of the corresponding subband identification information bit number of each portions of bandwidth then as the corresponding subband identification information of this descending carrier.For example; If certain descending carrier only is divided into 2 portions of bandwidth, first portions of bandwidth comprises 4 subbands, needs 2 bit subband identification informations to represent the subband in this portions of bandwidth; Second portions of bandwidth comprises 2 subbands; Need 1 bit subband identification information to represent the subband in this portions of bandwidth, the bit number of the subband identification information that then this descending carrier is corresponding is 2, is promptly confirmed by first portions of bandwidth;
Maximum number bits in the bit number of the descending carrier corresponding subband identification information of each configuration/activation that the terminal will be confirmed is confirmed as the value of L.
As another kind of execution mode, the concrete realization of step 20 can be following:
The terminal need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, and M is a positive integer; And a subband of choosing in each downstream carrier group in a said M downstream carrier group on one of them descending carrier is united the first-selected subband after subband is selected as this downstream carrier group; Wherein, the terminal can be according to the configuration information that receives through high-level signaling or PDCCH signaling, and perhaps make an appointment (the predefine mode in the system) of terminal and base station divides into groups to a plurality of descending carriers; Said high-level signaling comprises radio resource control RRC signaling, media access control MAC signaling; Do not get rid of other packet modes, for example according to modes such as carrier wave priority.
Accordingly, the concrete realization of step 21 is following:
The terminal confirms that the subband CQI information after said associating subband is selected comprises the K bit CQI information of the said first-selected subband of choosing in each downstream carrier group in the said M downstream carrier group, the A bit carrier wave indication information of indicating the said first-selected subband place descending carrier of choosing in each downstream carrier group and the L bit subband identification information of the said first-selected subband of choosing in each downstream carrier group; Wherein, said K, A and L are positive integer.
Wherein, For each downstream carrier group in the said M downstream carrier group,
Figure BDA0000077908680000101
N is the number of the descending carrier of said terminal configuration/activation; Perhaps N is the number of the descending carrier of configuration/activation of comprising of corresponding downstream carrier group.Promptly when N is the number of descending carrier of said terminal configuration/activation, the corresponding A of each downstream carrier group is identical; When N was the number of descending carrier of configuration/activation of comprising of corresponding downstream carrier group, the corresponding A of each downstream carrier group can be the same or different, and depends on the number of the descending carrier of configuration/activation in this downstream carrier group.
For each downstream carrier group in the said M downstream carrier group, definite method of L specifically can be following:
The bit number of the subband identification information of each descending carrier correspondence in this downstream carrier group is confirmed according to the sub-band division mode of each descending carrier in this downstream carrier group in the terminal;
Maximum number bits in this downstream carrier group that the terminal will be confirmed in the bit number of each descending carrier corresponding subband identification information is confirmed as the value of the corresponding L of this downstream carrier group.No matter promptly select a subband on which descending carrier in this downstream carrier group as first-selected subband, the subband identification information of this subband all uses the L bit to represent, rather than uses the bit number of the corresponding subband identification information of the descending carrier selected to represent.
Preferable, be 2 o'clock at M, the terminal need be divided into a carrier set at the downlink main carrier to carry in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information in the step 20, and remaining descending auxilliary carrier wave is divided into another carrier set.Preferable; The corresponding A of downstream carrier group at downlink main carrier to carry place is 0; Also promptly, the terminal confirms in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected, and do not comprise corresponding A bit carrier wave indication information in the downstream carrier group at downlink main carrier to carry place.
Concrete, said carrier wave indication information is a carrier index, perhaps indicates based on carrier index.Promptly when N is the number of descending carrier of said terminal configuration/activation; When the A of each downstream carrier group correspondence is identical; The corresponding A bit carrier wave indication information of each downstream carrier group can be indicated the carrier index of a descending carrier of selecting in this downstream carrier group or is the indication information that has corresponding relation with the carrier index of descending carrier; This carrier index is numbering or the system-level carrier index that UE safeguards; For example need to feed back the descending carrier number of subband CQI be 5 to UE, then adopts the A=5 bit as the carrier wave indication information, the indication carrier wave numbering; When N is the number of descending carrier of configuration/activation of comprising of corresponding downstream carrier group; The corresponding A of each downstream carrier group depends on the number of the descending carrier of configuration/activation in this downstream carrier group; Therefore the A of each downstream carrier group correspondence is not necessarily identical; If this moment, bit number that the expression carrier index the needs situation greater than the A bit appearred in A bit carrier wave indication information indication carrier wave numbering probably; Can indicate an indication information that has corresponding relation with carrier index this moment; For example a plurality of carrier waves in downstream carrier group according to carrier index from small to large or the sequence arrangement of perhaps a kind of from big to small fixing (predefine or configuration), corresponding one by one with the different conditions of A bit carrier wave indication information.
As another execution mode, the concrete realization of step 20 can be following:
The terminal need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer; And to said M 1Each descending carrier in each downstream carrier group in the individual downstream carrier group is chosen a subband as first-selected subband, and the first-selected subband of said each descending carrier has identical subband identification information;
Preferable; Sub-band division mode according to said needs each descending carrier in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information is divided into groups to descending carrier, makes that the interior descending carrier of each downstream carrier group after dividing has consistent sub-band division mode; Said sub-band division mode with unanimity does not require that each subband size (RB number) of a plurality of descending carriers is identical; Said sub-band division mode with unanimity is meant that the portions of bandwidth number of a plurality of descending carriers divisions is identical; And the subband number that the corresponding portions of bandwidth on a plurality of descending carriers comprises also identical (but not requiring that the subband number that each portions of bandwidth on each descending carrier comprises is all identical); For example all be divided into 3 portions of bandwidth on each descending carrier; First portions of bandwidth all comprises 4 subbands, and second portions of bandwidth all comprises 4 subbands, and the 3rd portions of bandwidth all comprises 2 subbands; Give the correct time on the subband CQI carrying out; Each portions of bandwidth repeating query reports, and promptly once report only in a portions of bandwidth, to select a first-selected subband, so the bit number of the subband identification information of these descending carriers correspondences is also identical; Perhaps; Said sub-band division mode with unanimity is meant that the portions of bandwidth number of a plurality of descending carriers divisions is not necessarily identical; But the subband number that each portions of bandwidth comprises is identical; In the portions of bandwidth repeating query on a plurality of descending carriers, give the correct time; On a plurality of descending carriers in current subframe to not necessarily identical in requisition for the portions of bandwidth that reports CQI, but the subband number that the current bandwidth of these carrier waves partly comprises is identical, so the bit number of the corresponding subband identification information of these descending carriers is also identical.
Accordingly, the concrete realization of step 21 is following:
The terminal confirms that the subband CQI information after said associating subband is selected comprises said M 1The K of the said first-selected subband of choosing of each descending carrier in each downstream carrier group in the individual downstream carrier group 1Bit CQI information, and the corresponding L of said downstream carrier group 1Bit subband identification information; Wherein, said K 1And L 1Be positive integer.
For said M 1Each downstream carrier group in the individual downstream carrier group, L 1Definite method specifically can be following:
The bit number of the subband identification information that this downstream carrier group is corresponding is confirmed according to the sub-band division mode of any descending carrier in this downstream carrier group in the terminal; Owing to carry out having guaranteed when descending carrier divides into groups then adopting any descending carrier in the downstream carrier group can confirm the subband identification information that this group descending carrier is corresponding at the corresponding identical subband identification information bit number of the descending carrier of same downstream carrier group according to the sub-band division mode of each descending carrier; For example; Any descending carrier in this downstream carrier group is divided into 2 portions of bandwidth; First portions of bandwidth comprises 4 subbands, and second portions of bandwidth comprises 3 subbands, is used to then to represent that the bit number of the subband identification information that this descending carrier is corresponding should calculate according to comprising the more portions of bandwidth of sub band number; Need 2 bit informations to represent 4 subbands of first portions of bandwidth, the bit number of the subband identification information that then this descending carrier is corresponding is 2; The bit number of the subband identification information that the terminal is corresponding with said definite this downstream carrier group is confirmed as the corresponding L of this downstream carrier group 1Value; Perhaps,
The bit number of the subband identification information that each descending carrier is corresponding in this downstream carrier group is confirmed according to the sub-band division mode of each descending carrier in this downstream carrier group in the terminal; The maximum number bits of the subband identification information that said definite each descending carrier is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value.
Need to prove; In the concrete realization grouping process of above-mentioned steps 20; Also can not consider the sub-band division mode of each descending carrier; Directly need confirm a common subband identification information to said a plurality of descending carriers at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information as one group, with this subband identification information is corresponding on each descending carrier subband as first-selected subband; Accordingly, the concrete realization of step 21 can be confirmed subband CQI information after said associating subband is selected for: terminal and comprises said K that need the first-selected subband that each descending carrier is corresponding in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Bit CQI information, and the common corresponding L of said a plurality of descending carrier 1Bit subband identification information; Wherein, said K 1And L 1Be positive integer; Wherein, L 1Definite method specifically can be: terminal sub-band division mode according to said needs each descending carrier in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information; Confirm the bit number of the subband identification information that each descending carrier is corresponding, with the subband identification information bit number of maximum as L 1Value; Special, if there is not the corresponding subband of this subband identification information on the descending carrier, then can fixing subband CQI of this descending carrier feedback perhaps not fed back the subband CQI of this descending carrier;
Need to prove, in the concrete realization grouping process of above-mentioned steps 20, also can not consider the sub-band division mode of each descending carrier, directly need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer, to said M 1Descending carrier in each downstream carrier group in the individual downstream carrier group is confirmed a common subband identification information, and the subband that this subband identification information on each descending carrier in this downstream carrier group is corresponding is as first-selected subband; Accordingly, the concrete realization of step 21 can be confirmed the subband CQI information after said associating subband is selected for: terminal and comprises said M 1The K of the first-selected subband that each descending carrier in each downstream carrier group in the individual downstream carrier group is corresponding 1Bit CQI information, and the common corresponding L of the descending carrier in each downstream carrier group 1Bit subband identification information; Wherein, said K 1And L 1Be positive integer; Wherein, L 1Definite method specifically can for: for each downstream carrier group; The terminal is according to the sub-band division mode of each descending carrier in this downstream carrier group; Confirm the bit number of the subband identification information that each descending carrier is corresponding, with the subband identification information bit number of maximum as the corresponding L of this downstream carrier group 1Value; Special, if there is not the corresponding subband of this subband identification information on the descending carrier, then can fixing subband CQI of this descending carrier feedback perhaps not fed back the subband CQI of this descending carrier;
Preferable; Before step 22; Total bit number of the subband CQI information after if the associating subband is selected; Perhaps uniting subband CQI information after subband is selected need surpass at total bit number of the ascending control information of current sub-frame of uplink feedback with other and transmit upper limit bit; Then the terminal is according to the priority of the channel condition information CSI reporting types of the priority of each descending carrier in said a plurality of descending carriers and/or each descending carrier, and the CSI that need in current subframe, feed back part descending carrier/downstream carrier group in a plurality of descending carrier/downstream carrier group of CSI gives up, and makes remaining number of bits of feedback be no more than said transmission upper limit bit;
Accordingly, in the step 22 terminal current sub-frame of uplink to base station feedback carry out CSI give up the back remaining feedback information.
In this method, Physical Uplink Control Channel (PUCCH) or Physical Uplink Shared Channel (PUSCH) can be passed through in the terminal, to the said subband CQI of base station feedback information.
Referring to Fig. 3, the embodiment of the invention provides a kind of method of reseptance of CQI information, may further comprise the steps:
Step 30: the bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected is confirmed in the base station;
Step 31: the subband CQI information bit after the base station is selected according to the associating subband, to the subband CQI information of terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
As a kind of execution mode, the concrete realization of step 30 can be following:
The base station confirms to be used for to represent that said terminal is from need be at the bit number K of the CQI information of a subband on the descending carrier that a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information are chosen; With the bit number A of the carrier wave indication information of a subband place descending carrier that is used to indicate said terminal to choose and the number L of bits sum that is used to indicate the subband identification information of the subband that said terminal chooses, be the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected; Wherein, said K, A and L are positive integer.
Wherein,
Figure BDA0000077908680000141
N is the number of the descending carrier of said terminal configuration/activation.
Definite method of L specifically can be following:
The base station is according to the sub-band division mode of the descending carrier of the needs at said terminal each the configuration/activation in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, confirms the bit number of subband identification information of the descending carrier correspondence of said each configuration/activation;
Maximum number bits in the bit number of the descending carrier corresponding subband identification information of said each configuration/activation that the base station will be confirmed is confirmed as the value of L.
As another kind of execution mode, the concrete realization of step 30 can be following:
The base station need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information with said terminal, and M is a positive integer; Wherein, the base station can be according to disposing the configuration information to said terminal through high-level signaling or PDCCH signaling, and perhaps make an appointment (the predefine mode in the system) at base station and said terminal divides into groups to a plurality of descending carriers; Said high-level signaling comprises radio resource control RRC signaling, media access control MAC signaling; Do not get rid of other packet modes, for example according to modes such as carrier wave priority.
Said base station confirm to be used for to represent the carrier wave indication information of the subband place descending carrier that bit number K and the said terminal that is used for indicating this downstream carrier group of the CQI information of the subband that the said terminal in each downstream carrier group of a said M downstream carrier group is chosen are chosen bit number A, be used for indicating the number L of bits sum of the subband identification information of the subband that the said terminal of this downstream carrier group chooses, be the corresponding subband CQI number of bits of feedback of this downstream carrier group; Wherein, said K, A and L are positive integer;
The corresponding said subband CQI number of bits of feedback sum of each carrier set in the said M downstream carrier group is confirmed in said base station, is the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected.
Wherein, For each downstream carrier group in the said M downstream carrier group,
Figure BDA0000077908680000151
N is the number of the descending carrier of said terminal configuration/activation; Perhaps N is the number of descending carrier of the configuration/activation at the said terminal that comprises of corresponding downstream carrier group.
For each downstream carrier group in the said M downstream carrier group, definite method of L specifically can be following:
The bit number of subband identification information corresponding on each descending carrier in this downstream carrier group is confirmed according to the sub-band division mode of each descending carrier in this downstream carrier group in the base station;
Maximum number bits in this downstream carrier group that the base station will be confirmed in the bit number of each descending carrier corresponding subband identification information is confirmed as the value of the corresponding L of this downstream carrier group.
Preferable, be 2 o'clock at M, the base station need be divided into a carrier set at the downlink main carrier to carry in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information with said terminal, and remaining descending auxilliary carrier wave is divided into another carrier set.Preferable, the corresponding A of downstream carrier group at said downlink main carrier to carry place is 0, and also promptly, the base station confirms that the subband CQI information bit after said associating subband is selected does not comprise corresponding A bit carrier wave indication information in the downstream carrier group at downlink main carrier to carry place
Said carrier wave indication information is a carrier index, perhaps indicates based on carrier index.
As another execution mode, the concrete realization of step 30 can be following:
Said terminal need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer;
Preferable; Sub-band division mode according to said needs each descending carrier in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information is divided into groups to descending carrier, makes that the interior descending carrier of each downstream carrier group after dividing has consistent sub-band division mode; The definition of the sub-band division mode of said unanimity is not given unnecessary details at this with the description of terminal part;
Said M is confirmed to be used to represent in the base station 1The bit number K of the CQI information of the corresponding subband of each descending carrier in each downstream carrier group in the individual downstream carrier group 1, and the number L of bits of the corresponding subband identification information of this downstream carrier group 1Sum is the corresponding subband CQI number of bits of feedback of this downstream carrier group; Wherein, said K 1And L 1Be positive integer;
Said M is confirmed in the base station 1The corresponding subband CQI number of bits of feedback sum of each downstream carrier group in the individual downstream carrier group is the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected.
Wherein, for said M 1Each downstream carrier group in the individual downstream carrier group, L 1Definite method specifically can be following:
The bit number of the subband identification information that this downstream carrier group is corresponding is confirmed according to the sub-band division mode of any descending carrier in this downstream carrier group in the base station; The bit number of the subband identification information that the base station is corresponding with said definite this downstream carrier group is confirmed as the corresponding L of this downstream carrier group 1Value; Perhaps,
The bit number of the subband identification information that each descending carrier is corresponding in this downstream carrier group is confirmed according to the sub-band division mode of each descending carrier in this downstream carrier group in the terminal; The maximum number bits of the subband identification information that said definite each descending carrier is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value.
Need to prove; In the concrete realization grouping process of above-mentioned steps 30; Also can not consider the sub-band division mode of each descending carrier; Directly need be at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information as one group, and confirm the corresponding same subband identification information of said a plurality of descending carriers; The base station confirm to be used for to represent said need be at each descending carrier of a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information the bit number K of corresponding subband CQI information 1, and be used to indicate said a plurality of descending carrier number L of bits of corresponding subband identification information jointly 1Sum is the bit number of the subband CQI information after the said associating subband selection; Wherein, said K 1And L 1Be positive integer; Wherein, L 1Definite method specifically can be: base station sub-band division mode according to said terminal needs each descending carrier in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information; Confirm the bit number of the subband identification information that each descending carrier is corresponding, with the subband identification information bit number of maximum as L 1Value; Special, if there is not the corresponding subband of this subband identification information on the descending carrier, then the base station can judge that the terminal can perhaps not feed back the subband CQI of this descending carrier to fixing subband CQI bit number of this descending carrier feedback;
Need to prove, in the concrete realization grouping process of above-mentioned steps 30, also can not consider the sub-band division mode of each descending carrier, directly need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer, and confirm said M 1The corresponding common subband identification information of descending carrier in each downstream carrier group in the individual downstream carrier group; Said M is confirmed to be used to represent in the base station 1The bit number K of the CQI information of the corresponding subband of each descending carrier in each downstream carrier group in the individual downstream carrier group 1, and the number L of bits of the corresponding subband identification information of this downstream carrier group 1Sum is the corresponding subband CQI number of bits of feedback of this downstream carrier group, and further confirms said M 1The corresponding subband CQI number of bits of feedback sum of each downstream carrier group in the individual downstream carrier group is the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected; Wherein, said K 1And L 1Be positive integer; Wherein, L 1Definite method specifically can for: for each downstream carrier group; The base station is according to the sub-band division mode of each descending carrier in this downstream carrier group; Confirm the bit number of the subband identification information that each descending carrier is corresponding, with the subband identification information bit number of maximum as the corresponding L of this downstream carrier group 1Value; Special, if there is not the corresponding subband of this subband identification information on the descending carrier, then the base station confirms that the terminal to fixing subband CQI bit number of this descending carrier feedback, perhaps do not feed back the subband CQI of this descending carrier;
Preferable; Before step 31; The subband CQI information bit after if the associating subband is selected; Subband CQI information after perhaps said associating subband is selected need surpass at total bit number of the ascending control information of current sub-frame of uplink feedback with other transmits upper limit bit; Then said base station is according to the priority of descending carrier and/or the priority of channel condition information CSI reporting types, judges that said terminal need feed back the CSI of part descending carrier/downstream carrier group in a plurality of descending carrier/downstream carrier group of CSI and give up in current subframe, makes remaining number of bits of feedback be no more than said transmission upper limit bit; And, confirm as the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected again with total bit number of the subband CQI information of remaining descending carrier/downstream carrier group; Accordingly; Base station described in the step 31 is according to the subband CQI number of bits of feedback of the said terminal of confirming again after the associating subband of current sub-frame of uplink feedback is selected; To the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
PUCCH or PUSCH can be passed through in the base station in this method, the said subband CQI information of receiving terminal feedback.
The mutual implementation method of end side and base station side is following:
At first, the terminal is selected uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information; The terminal is confirmed in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected; The terminal is in the subband CQI information of current sub-frame of uplink after the said associating subband of base station feedback is selected, and the subband CQI information of perhaps feeding back simultaneously after said associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other;
Then, the bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected is confirmed in the base station; Subband CQI information bit after the base station is selected according to said associating subband, to the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
Specify in the face of the present invention down:
In LTE-A CA system; When the UE polymerization during a plurality of descending carrier; If there is the subband CQI feedback of a plurality of descending carriers in the current sub-frame of uplink simultaneously; UE unites subband to said a plurality of descending carriers and selects, and reports subband CQI information and corresponding indication information after the associating subband is selected, and concrete grammar is following:
Method 1:
The UE side:
Step 1: the terminal be to need being divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, and a subband of choosing in each downstream carrier group in M downstream carrier group on one of them descending carrier is united the first-selected subband after the subband selection as this downstream carrier group;
Special; The terminal also can be to not dividing into groups at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information; As one group, the first-selected subband after subband is selected is united in a subband conduct of directly in these descending carriers, choosing on one of them descending carrier with these descending carrier acquiescences;
Step 2: the terminal is at the L bit subband identification information of the corresponding first-selected subband of the K bit CQI information of the corresponding first-selected subband of current sub-frame of uplink each downstream carrier group in a base station feedback M downstream carrier group, the A bit carrier wave indication information of indicating the corresponding first-selected subband place descending carrier of each downstream carrier group and each downstream carrier group;
Total bit number is
Figure BDA0000077908680000191
to the subband CQI that UE need feed back
Above-mentioned K iBe the CQI number of bits of feedback of the first-selected subband of correspondence in i the downstream carrier group, can be 3 or 4 bits.If be many codeword transmission, can be further many code words CQI of the at first subband selected be compressed.The K of each downstream carrier group iCan be identical, also can be different;
Above-mentioned
Figure BDA0000077908680000192
N is the number of the descending carrier of terminal configuration/activation; Perhaps N is the number of the descending carrier of configuration/activation of comprising of corresponding downstream carrier group; Promptly when N is the number of descending carrier of said terminal configuration/activation, the corresponding A of each downstream carrier group is identical; When N was the number of descending carrier of configuration/activation of comprising of corresponding downstream carrier group, the corresponding A of each downstream carrier group can be the same or different, and depends on the number of the descending carrier of configuration/activation in this downstream carrier group;
Said carrier wave indication information can be carrier index, perhaps indicates based on carrier index; Promptly when N is the number of descending carrier of said terminal configuration/activation; When the A of each downstream carrier group correspondence is identical; The corresponding A bit carrier wave indication information of each downstream carrier group can be indicated the carrier index of a descending carrier of selecting in this downstream carrier group or is the indication information that has corresponding relation with the carrier index of descending carrier; This carrier index is numbering or the system-level carrier index that UE safeguards; For example need to feed back the descending carrier number of subband CQI be 5 to UE, then adopts the A=5 bit as the carrier wave indication information, the indication carrier wave numbering; When N is the number of descending carrier of configuration/activation of comprising of corresponding downstream carrier group; The corresponding A of each downstream carrier group depends on the number of the descending carrier of configuration/activation in this downstream carrier group; Therefore the A of each downstream carrier group correspondence is not necessarily identical; If this moment, bit number that the expression carrier index the needs situation greater than the A bit appearred in A bit carrier wave indication information indication carrier wave numbering probably; Can indicate an indication information that has corresponding relation with carrier index this moment; For example a plurality of carrier waves in downstream carrier group according to carrier index from small to large or the sequence arrangement of perhaps a kind of from big to small fixing (predefine or configuration), corresponding one by one with the different conditions of A bit carrier wave indication information;
Above-mentioned L iIt is the corresponding subband identification information of i downstream carrier group; Can be 1 or 2 bits; Definite method of L can be following: according to the sub-band division mode of each descending carrier in the corresponding downstream carrier group, confirm the bit number of the subband identification information of each descending carrier correspondence in this downstream carrier group; With the maximum number bits in the bit number of each descending carrier corresponding subband identification information in this downstream carrier group of confirming; Confirm as the value of the corresponding L of corresponding downstream carrier group; No matter promptly select a subband on which descending carrier in this downstream carrier group as first-selected subband; The subband identification information of this subband all uses the L bit to represent, rather than uses the bit number of the subband identification information of the descending carrier correspondence of selecting to represent.The sub-band division mode of each descending carrier can be identical, also can be different; Here; The sub-band division mode of descending carrier comprises that this descending carrier is divided into the size (comprising several RB) that several portions of bandwidth (Bandwidth Part), each portions of bandwidth are divided into several subbands (Subband) and each subband; The subband identification information is used for representing the numbering of the subband of a portions of bandwidth; So; Can be at first each portions of bandwidth of this descending carrier be confirmed to be used for the needed bit number of whole subbands of representing that this portions of bandwidth comprises, i.e. the corresponding subband identification information bit number of this portions of bandwidth, and with the subband identification information bit number of the maximum bit number as the corresponding subband identification information of this descending carrier.For example, if certain descending carrier is divided into a portions of bandwidth, comprise 4 subbands, the bit number of the subband identification information that then this descending carrier is corresponding is 2; Again for example if certain descending carrier only is divided into 2 portions of bandwidth; First portions of bandwidth comprises 4 subbands; Need 2 bit subband identification informations to represent the subband in this portions of bandwidth, second portions of bandwidth comprises 2 subbands, needs 1 bit subband identification information to represent the subband in this portions of bandwidth; The bit number of the subband identification information that then this descending carrier is corresponding is 2, is promptly confirmed by first portions of bandwidth.
More excellent, M=1 or 2; (predefined mode in the system) that concrete carrier wave packet mode can be made an appointment for UE and base station, perhaps high-level signaling configuration; Wherein high-level signaling can comprise radio resource control RRC signaling, media access control MAC signaling, PDCCH signaling.
More excellent, more excellent when M=2, main carrier (PCC) is divided into 1 group, all the other auxilliary carrier waves (SCC) are divided into one group, and PCC is independently reported its subband CQI, all the other SCC are reported the subband CQI of associating subband selection; This reports the content of mode to comprise:
The K1 bit subband CQI information of the first-selected subband of on PCC, selecting, the L1 bit subband identification information of this first-selection subband, and the B bit carrier index information of the descending carrier at the K2 bit subband CQI information of the first-selected subband on the descending carrier of in SCC group, selecting, this first-selection subband place and L2 bit subband identification information that should the first-selection subband;
More excellent, the optimal sub-band (being the maximum subband CQI of subband CQI index) on all descending carriers that can select to comprise in each downstream carrier group according to channel condition is united the first-selected subband after subband is selected as this downstream carrier group;
Special; If total bit number of the subband CQI information after the associating subband is selected surpasses transmission upper limit bit; Then UE is according to the priority of descending carrier and/or the priority of channel condition information CSI reporting types; The CSI that need in current subframe, feed back part descending carrier in a plurality of descending carrier/downstream carrier group of CSI gives up; The CSI of part downstream carrier group gave up during a plurality of descending carriers that perhaps need in current subframe, feed back CSI were rented, and made remaining number of bits of feedback be no more than transmission upper limit bit; Need to prove that above-mentioned giving up in the process also can comprise giving up the CSI information of other descending carriers of not comprising subband CQI information;
Wherein transmitting upper limit bit, for according to the transmission capacity definition of the PUCCH format (like PUCCH format 2/2a/2b/3) that is used to transmit CSI, perhaps is predefined in the system;
For example: during M=1; UE has been configured 4 descending carriers; All need be at current sub-frame of uplink feedback subband CQI, then as a carrier set, UE is according to the channel condition of each carrier wave with all descending carriers for UE; Select a first-selected subband on the descending carrier 2, for it produces the K=4 bit subband CQI value of reporting; Calculate the L value of each descending carrier according to the L computing formula that defines in the standard
Figure BDA0000077908680000221
;
Figure BDA0000077908680000222
is the downlink system bandwidth of corresponding descending carrier; K is that subband size (Subband Size), the J of corresponding descending carrier is the number of the portions of bandwidth (Bandwidth Parts) that is divided into of corresponding descending carrier, chooses the L value that the maximum L value conduct that calculates reports; Suppose that descending carrier 2 corresponding L values are the maximum L value that calculates; The computational methods that illustrate the L value of descending carrier 2 correspondences are: the downlink system bandwidth of descending carrier 2 is
Figure BDA0000077908680000223
individual RB; Then basis is like following table 2; This descending carrier is divided into 4 portions of bandwidth; Be J=4; The size of each subband is k=8 RB; Then calculating
Figure BDA0000077908680000224
is that UE produces L=2 bit subband identification information; And A=2 bit carrier wave indication information; Then UE need report the K+L+A=4+2+2=8 bit information at current sub-frame of uplink, and the associating subband of 4 descending carriers of expression is selected the CQI feedback information; Subband CQI on the different descending carriers can report that repeating query reports in the chance at continuous subband CQI;
Figure BDA0000077908680000226
Table 2: subband size (k) and portions of bandwidth under the different downlink bandwidths are divided (J)
Again for example, during M=2, when UE has been configured 3 descending carriers; Descending carrier 1 is PCC, all need be at current sub-frame of uplink feedback subband CQI, and UE is divided into one group (first downstream carrier group) with descending carrier 1; All the other descending carriers are divided into one group (second downstream carrier group); Then UE selects a first-selected subband to first group of descending carrier (descending carrier 1), and for it produces the K1=4 bit subband CQI value of reporting, the downlink system bandwidth of descending carrier 1 does
Figure BDA0000077908680000231
Individual RB, then according to table 2, descending carrier 1 is divided into 4 portions of bandwidth, i.e. J1=4, the size of each subband is k1=8 RB, then according to the L computing formula that defines in the standard
Figure BDA0000077908680000232
Be that UE produces L to first group of descending carrier 1=1 bit subband identification information; UE according to the channel condition of each descending carrier (descending carrier 2 and 3), selects a first-selected subband on the descending carrier 3 to second downstream carrier group, for it produces the K2=4 bit subband CQI value of reporting; According to formula
Figure BDA0000077908680000233
Calculate the L value of descending carrier 2 and descending carrier 3, choose the L value that the maximum L value conduct that calculates reports; For example, the downlink system bandwidth of descending carrier 2 does
Figure BDA0000077908680000234
Individual RB, then according to table 2, descending carrier 3 is divided into 2 portions of bandwidth, i.e. J2=2, the size of each subband is k2=4 RB, then according to the L computing formula that defines in the standard
Figure BDA0000077908680000235
The downlink system bandwidth of descending carrier 3 does
Figure BDA0000077908680000236
Individual RB, then according to table 2, descending carrier 3 is divided into 1 portions of bandwidth, i.e. J3=1, the size of each subband is k3=4 RB, then according to the L computing formula that defines in the standard
Figure BDA0000077908680000237
Then confirm the bit number of the subband identification information bit number of descending carrier 3 correspondences as L, promptly UE produces L to second group of descending carrier 2=2 bit subband identification informations; For second downstream carrier group, if confirm A, then according to the descending carrier of UE configuration/activation Then UE need report the 4+1+4+2+2=13 bit information at current sub-frame of uplink, and the subband of expression PCC selects the associating subband of CQI feedback information and all the other 2 SCC to select the CQI feedback information; For second downstream carrier group, if confirm A, then according to the configuration that comprises in this group descending carrier/activation descending carrier number
Figure BDA0000077908680000239
Then UE need report the 4+1+4+2+1=12 bit information at current sub-frame of uplink; The subband of expression PCC selects the associating subband of CQI feedback information and all the other 2 SCC to select the CQI feedback information; If wherein the numbering of descending carrier 2 and descending carrier 3 is respectively 004 and at 003 o'clock; 1 bit carrier wave indication information is the carrier index of indicating downlink carrier 3 directly, can be according to the ascending order mapping of carrier index, and predefine corresponding relation as shown in table 3 is indicated; Perhaps according to the descending mapping of carrier index, predefine corresponding relation as shown in table 4 is indicated; Subband CQI on the different SCC can report that repeating query reports in the chance at continuous subband CQI; The first-selected subband CQI of the different bandwidth part on the different CC can report that repeating query reports in the chance at continuous subband CQI;
The corresponding relation of table 31 bit carrier wave indication information and indication carrier wave (ascending order mapping)
Figure BDA0000077908680000242
The corresponding relation of table 41 bit carrier wave indication information and indication carrier wave (descending mapping)
Base station side:
Step 1: the base station need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information with the terminal, and M is a positive integer;
Adopt the method consistent with the UE side; For each downstream carrier group in M the downstream carrier group; The bit number K of the CQI information of a subband of confirming to be used to represent that this downstream carrier group is corresponding be used to indicate a corresponding subband of this downstream carrier group belong to the carrier wave indication information of descending carrier bit number A, be used to indicate the number L of bits sum of the subband identification information of a corresponding subband of this downstream carrier group, be the subband CQI number of bits of feedback of this downstream carrier group correspondence;
Confirm the corresponding subband CQI number of bits of feedback sum of each carrier set in M the downstream carrier group, for the terminal at the subband CQI of current sub-frame of uplink actual feedback information bit;
Step 2: decode in the subband CQI information of current sub-frame of uplink feedback to the terminal according to the subband CQI information bit of the actual feedback of confirming in the base station.
Method 2:
The UE side:
Step 1: the terminal need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer; And to M 1In each downstream carrier group in the individual downstream carrier group descending carrier confirm a common subband identification information; The subband that this subband identification information on each descending carrier in this downstream carrier group is corresponding is as first-selected subband, and promptly the first-selected subband of each descending carrier has identical subband identification information;
More excellent, the descending carrier in each downstream carrier group after the division has consistent sub-band division mode; Have consistent sub-band division mode and do not require that each subband size (RB number) of a plurality of descending carriers is identical; Have consistent sub-band division mode and can refer to that the portions of bandwidth number of a plurality of descending carriers divisions is identical; And the subband number that the corresponding portions of bandwidth on a plurality of descending carriers comprises also identical (but not requiring that the subband number that each portions of bandwidth on each descending carrier comprises is all identical) for example all is divided into 3 portions of bandwidth on each descending carrier, first portions of bandwidth all comprises 4 subbands; Second portions of bandwidth all comprises 4 subbands; The 3rd portions of bandwidth all comprises 2 subbands, gives the correct time on the subband CQI carrying out, and each portions of bandwidth repeating query reports; Promptly once report and only in a portions of bandwidth, select a first-selected subband, so the bit number of the subband identification information of these descending carriers correspondences is also identical; Perhaps; Have consistent sub-band division mode and be meant that the portions of bandwidth number of a plurality of descending carriers divisions is not necessarily identical; But the subband number that each portions of bandwidth comprises is identical, in the portions of bandwidth repeating query on a plurality of descending carriers, give the correct time, on a plurality of descending carriers in current subframe to not necessarily identical in requisition for the portions of bandwidth that reports CQI; But the subband number that the current bandwidth of these carrier waves partly comprises is identical, so the bit number of the subband identification information of these descending carriers correspondences is also identical.Can guarantee like this after one group of descending carrier has been confirmed a sub-tape identification information, can both confirm on all descending carriers in this group descending carrier that one is carried out subband CQI with the corresponding subband of this subband identification information and calculates;
Special, can a plurality of descending carriers not divided into groups yet, directly with a plurality of descending carriers as one group, a plurality of descending carriers are confirmed a common subband identification information, with this subband identification information is corresponding on each descending carrier subband as first-selected subband;
Step 2: the terminal at current sub-frame of uplink to base station feedback M 1The K bit CQI information of the first-selected subband that each descending carrier in each downstream carrier group in the individual downstream carrier group is corresponding, and the corresponding L bit subband identification information of each downstream carrier group.Wherein, K and L are positive integer.
Special; If the sub-band division mode of a plurality of descending carriers in downstream carrier group is inconsistent; The subband number difference that the corresponding current bandwidth of different descending carriers in the same downstream carrier group partly comprises then possibly occur, if therefore selected a bigger subband numbering as the subband identification information, then possibly there is not the corresponding subband of this subband identification information in some descending carrier in this downstream carrier group; To such descending carrier; UE can feed back a fixing subband CQI (for example CQI index is 0 CQI, perhaps base station and the UE CQI value of making an appointment) or not feed back the subband CQI of this carrier wave, if promptly do not have the corresponding subband of this subband identification information on the descending carrier; Then can fixing subband CQI of this descending carrier feedback perhaps not fed back the subband CQI of this descending carrier;
Total bit number is
Figure BDA0000077908680000261
to the subband CQI that UE need feed back
Above-mentioned K I, jBe the CQI number of bits of feedback of the first-selected subband that j descending carrier is corresponding in i the downstream carrier group, can be 3 or 4 bits,, can be further many code words CQI of this first-selection subband be compressed K if be many codeword transmission I, jCan be identical to each descending carrier in each downstream carrier group, also can be different;
Above-mentioned N iIt is the descending carrier number that comprises in i the downstream carrier group;
Above-mentioned L iBe the corresponding subband identification information of i downstream carrier group, can be 1 or 2 bits; L iDefinite method can be following: according to the sub-band division mode of any descending carrier in i the downstream carrier group, confirm the bit number of the subband identification information that this i downstream carrier group is corresponding; This bit number is confirmed as the corresponding L of this i downstream carrier group iValue.
More excellent, to each descending carrier in each downstream carrier group, select a optimal sub-band on this descending carrier as first-selected subband according to channel condition;
For example: UE has been configured 3 descending carriers, all need be at current sub-frame of uplink feedback subband CQI, and descending carrier 1 has a kind of sub-band division mode; Descending carrier 2 and 3 has another kind of sub-band division mode; And descending carrier 2 is consistent with 3 sub-band division mode, and descending carrier 1 is divided into 1 group, and descending carrier 2 and 3 is divided into one group; Be M1=2, N 1=1, N 2=2, then UE selects a first-selected subband to the 1st group of descending carrier (descending carrier 1), for it produces K 1,1=4 bit subband CQI values of reporting, the downlink system bandwidth of descending carrier 1 does
Figure BDA0000077908680000271
Individual RB, then according to table 2, descending carrier 1 is divided into 4 portions of bandwidth, i.e. J1=4, the size of each subband is k1=8 RB, then according to the L computing formula that defines in the standard
Figure BDA0000077908680000272
Promptly the 1st group of descending carrier produced L 1=1 bit subband identification information; UE according to the channel condition of descending carrier 2 and 3, selects an identical first-selected subband, for each descending carrier produces K to the 2nd group of descending carrier on each descending carrier 2,1=K 2,2=4 bit subband CQI values of reporting, descending carrier 2 and 3 downlink system bandwidth do
Figure BDA0000077908680000273
Individual RB, then according to table 2, descending carrier 3 is divided into 3 portions of bandwidth, i.e. J2=3, the size of each subband is k2=6 RB, then according to the L computing formula that defines in the standard
Figure BDA0000077908680000274
Promptly the 2nd group of descending carrier produced L 2=2 than subband identification information; Then UE need report K at current sub-frame of uplink 1,1+ L 1+ K 2,1+ K 2,2+ L 2=4+1+4+4+2=15 bit information representes that two groups of descending carriers divide other subband to select the CQI feedback information;
Again for example: UE has been configured 3 descending carriers; All need be at current sub-frame of uplink feedback subband CQI; Do not consider the sub-band division mode of descending carrier; Directly these 3 carrier waves are regarded as one group, then UE confirms that to these 3 descending carriers a common subband is numbered 003, and promptly each descending carrier all reports subband to be numbered the CQI of 3 subband; The downlink system bandwidth of descending carrier 1 does
Figure BDA0000077908680000275
Individual RB, then according to table 2, descending carrier 1 is divided into 4 portions of bandwidth, i.e. J1=4, the size of each subband is k1=8 RB, then according to the L computing formula that defines in the standard
Figure BDA0000077908680000276
Be descending carrier 1 corresponding 1 bit subband identification information, its current bandwidth partly comprises 2 subbands, does not therefore exist to be numbered 3 subband, and then UE produces fixed K for it 1,1=4 bit subband CQI values of reporting; Descending carrier 2 and 3 downlink system bandwidth do Individual RB, then according to table 2, descending carrier 2 and 3 is divided into 3 portions of bandwidth, i.e. J2=3, J3=3, the size of each subband is k2=k3=6 RB, then according to the L computing formula that defines in the standard Be descending carrier 2 and 3 corresponding 2 bit subband identification informations; Descending carrier 2 and 3 current bandwidths partly comprise 3 subbands, promptly exist to be numbered 3 subband, for this subbands of descending carrier 2 and 3 produces K respectively 2,1=K 2,2=4 bit subband CQI values of reporting; Understanding under the situation of being not sure of which subband numbering of UE selection is fuzzy for fear of the base station; Need to adopt the corresponding maximum subband identification information bit number of a plurality of descending carriers to carry out the subband indication, then UE need report K at current sub-frame of uplink 1,1+ K 2,1+ K 2,2+ L 2=4+4+4+2=14 bit information; Perhaps, if UE does not report the subband CQI of descending carrier 1, then UE need report K at current sub-frame of uplink 2,1+ K 2,2+ L 2=4+4+2=10 bit information;
Said method is applicable to and comprises the reporting types that subband CQI reports, and for example Reporting Type1,1a also can be applicable to the reporting types that comprises subband CQI of other redeterminations;
Base station side:
Step 1: the base station need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information with the terminal 1Descending carrier in the individual downstream carrier group, each downstream carrier group after the division has identical sub-band division mode, M 1Be positive integer
According to the method consistent with the UE side, the base station is for M 1Each downstream carrier group in the individual downstream carrier group confirms to be used for to represent the bit number K of the CQI information of the subband that each descending carrier of this downstream carrier group is corresponding 1, and the number L of bits that is used to indicate the corresponding subband identification information of this downstream carrier group 1Sum is the corresponding subband CQI number of bits of feedback of this downstream carrier group;
M is confirmed in the base station 1The corresponding subband CQI number of bits of feedback sum of each downstream carrier group in the individual downstream carrier group, for the terminal at the subband CQI of current sub-frame of uplink actual feedback information bit.
Step 2: decode in the subband CQI information of current sub-frame of uplink feedback to the terminal according to the subband CQI information bit of the actual feedback of confirming in the base station; At this moment; Because the indication information of the L that the base station can obtain according to parsing is confirmed the subband numbering that UE reports; And base station end can know that it is that the current needs of UE report the portions of bandwidth of subband CQI for which portions of bandwidth; Therefore, the base station can confirm that the subband that UE selects does not exist descending carrier 1 according to current bandwidth part and subband identification information, therefore can resolve the subband CQI of descending carrier 1 correspondence according to fixing bit number; Confirm that perhaps UE not to descending carrier 1 feedback subband CQI, does not exist and understands ambiguity.
Method 3:
The UE side:
Step 1: the first-selected subband of terminal after need in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, choosing a subband on one of them descending carrier and selecting as the associating subband;
Step 2: the L bit subband identification information of the A bit carrier wave indication information of the first-selected subband place descending carrier that K bit CQI information, the indication of the first-selected subband that the terminal is chosen to base station feedback at current sub-frame of uplink chosen and the first-selected subband of choosing; Wherein, said K, A and L are positive integer.
Above-mentioned K can be 3 or 4 bits.If be many codeword transmission, can be further many code words CQI of the at first subband selected be compressed.
Figure BDA0000077908680000291
N is the number of the descending carrier of terminal configuration/activation.
Above-mentioned L can be 1 or 2 bits; Definite method of L specifically can be following: the sub-band division mode of the descending carrier of each the configuration/activation in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information as required, confirm the bit number of subband identification information of the descending carrier correspondence of each configuration/activation; Maximum number bits in the bit number of the descending carrier corresponding subband identification information of each configuration/activation of confirming is confirmed as the value of L.
More excellent, can select an optimal sub-band on the descending carrier according to channel condition, as first-selected subband;
For example: UE has been configured 4 descending carriers, all need be at current sub-frame of uplink feedback subband CQI, and then UE selects a first-selected subband on the descending carrier 2 according to the channel condition of each carrier wave, for it produces the K=4 bit subband CQI value of reporting; Calculate the L value of each descending carrier according to the L computing formula that defines in the standard
Figure BDA0000077908680000292
, choose the maximum L value that calculates as the L value that reports; Suppose that descending carrier 2 corresponding L values are the maximum L value that calculates; The computational methods that illustrate the L value of descending carrier 2 correspondences are: the downlink system bandwidth of descending carrier 2 is
Figure BDA0000077908680000293
individual RB; Then according to last table 2; This descending carrier is divided into 4 portions of bandwidth; Be J=4; The size of each subband is k=8 RB; Then calculating
Figure BDA0000077908680000301
is that UE produces L=2 bit subband identification information; And A=2 bit carrier wave indication information; Then UE need report the K+L+A=4+2+2=8 bit information at current sub-frame of uplink, and the associating subband of 4 descending carriers of expression is selected the CQI feedback information; Subband CQI on the different descending carriers can report that repeating query reports in the chance at continuous subband CQI; The corresponding subband CQI of different bandwidth part on the different descending carriers can report that repeating query reports in the chance at continuous subband CQI;
Base station side:
Step 1: the method that adopts with the UE side is consistent; The bit number K and the bit number A of the carrier wave indication information that is used to indicate a subband place descending carrier of choosing and the number L of bits sum that is used to indicate the subband identification information of a subband of choosing of the CQI information of a subband choosing confirmed to be used to represent in the base station, for the terminal at the subband CQI of current sub-frame of uplink actual feedback information bit;
Step 2: decode in the subband CQI information of current sub-frame of uplink feedback to the terminal according to the subband CQI information bit of said actual feedback in the base station.
Need to prove; When exist simultaneously in the sub-frame of uplink that has subband CQI transmission on ACK/NACK feedback information and/or dispatch request (SR) information and/or other descending carriers do not comprise the CSI information of subband CQI the time; Said method is suitable equally; Can support the CSI information combined coding transmission of subband CQI feedback information and ACK/NACK and/or SR information and/or other descending carriers of multicarrier; For example adopt PUCCH format 2/2a/2b/3, perhaps the PUCCH format 3 of expansion, perhaps other schemes; At this moment; Subband CQI information and other ascending control informations (the CSI information that does not comprise subband CQI, the ACK/NACK information that comprise other descending carriers after if the associating subband is selected; SR information) total bit number surpasses transmission upper limit bit; Then UE is according to the priority of descending carrier and/or the priority of channel condition information CSI reporting types; The CSI that need in current subframe, feed back part descending carrier in a plurality of descending carrier/downstream carrier group of CSI gives up, and the CSI of part downstream carrier group gave up during a plurality of descending carriers that perhaps need in current subframe, feed back CSI were rented, and made remaining number of bits of feedback be no more than transmission upper limit bit; Need to prove that above-mentioned giving up in the process also can comprise giving up the CSI information of other descending carriers of not comprising subband CQI information;
Wherein transmitting upper limit bit, for according to the transmission capacity definition of the PUCCH format (like PUCCHformat 2/2a/2b/3) that is used to transmit CSI, perhaps is predefined in the system;
Need to prove that said method is not only applicable to the transmission of cycle CQI feedback information on PUCCH, go for the transmission of cycle CQI feedback information on PUSCH equally.
Need to prove; The Compression and Transmission method of multicarrier subband CQI in the above-mentioned LTE-A CA system goes for cooperative multipoint transmission (Coordinated Multi-Point Transmission equally; CoMP) scene, the subband CQI information of a plurality of transmission points that in the CoMP transmission, need feed back can be equal to the subband CQI information of above-mentioned a plurality of carrier waves.
Referring to Fig. 4, the embodiment of the invention provides a kind of terminal, and this terminal comprises:
Select module 40, be used for selecting uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information;
Determination module 41 is used to confirm in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected;
Feedback module 42; Be used in the subband CQI information of current sub-frame of uplink after the said associating subband of base station feedback is selected, the subband CQI information of perhaps feeding back simultaneously after said associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.
Said selection module 40 is used for:
First-selected subband after in said a plurality of descending carriers, choosing a subband on one of them descending carrier and selecting as the associating subband;
Said determination module 41 is used for:
Confirm that the subband CQI information after said associating subband is selected comprises that the said first-selected subband of choosing of K bit CQI information, indication of the said first-selected subband of choosing belongs to the A bit carrier wave indication information of descending carrier and the L bit subband identification information of the said first-selected subband of choosing; Wherein, said K, A and L are positive integer.
Figure BDA0000077908680000311
N is the number of the descending carrier of said terminal configuration/activation.
Said determination module 41 also is used for: confirm L according to following method:
According to the sub-band division mode of the descending carrier of each the configuration/activation of said needs in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, confirm the bit number of subband identification information of the descending carrier correspondence of said each configuration/activation;
The maximum number bits of the descending carrier corresponding subband identification information of said each configuration/activation of confirming is confirmed as the value of L.
Said selection module 40 is used for:
Need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, M is a positive integer; And a subband of choosing in each downstream carrier group in a said M downstream carrier group on one of them descending carrier is united the first-selected subband after subband is selected as this downstream carrier group;
Said determination module 41 is used for:
Confirm that the subband CQI information after said associating subband is selected comprises the K bit CQI information of the said first-selected subband of choosing in each downstream carrier group in the said M downstream carrier group, the A bit carrier wave indication information of indicating the said first-selected subband place descending carrier of choosing in each downstream carrier group and the L bit subband identification information of the said first-selected subband of choosing in each downstream carrier group; Wherein, said K, A and L are positive integer.
For each downstream carrier group in the said M downstream carrier group;
Figure BDA0000077908680000321
wherein, N is the number of the descending carrier of said terminal configuration/activation; Perhaps N is the number of the descending carrier of configuration/activation of comprising of said downstream carrier group.
Said determination module 41 also is used for: for each downstream carrier group of a said M downstream carrier group, confirm L according to following method:
According to the sub-band division mode of each descending carrier in this downstream carrier group, confirm the bit number of the subband identification information of each descending carrier correspondence in this downstream carrier group;
The maximum number bits of the subband identification information that each descending carrier of confirming in this downstream carrier group is corresponding is confirmed as the value of the corresponding L of this downstream carrier group.
Said selection module 40 is used for:
At M is 2 o'clock, need be divided into a carrier set at the downlink main carrier to carry in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, and remaining descending auxilliary carrier wave is divided into another carrier set.This moment, the corresponding A of downstream carrier group at downlink main carrier to carry place was 0
Said carrier wave indication information is a carrier index, perhaps indicates based on carrier index.
Said selection module 40 is used for:
Need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer; And to said M 1Each descending carrier in each downstream carrier group in the individual downstream carrier group is chosen a subband as first-selected subband, and the first-selected subband of said each descending carrier has identical subband identification information;
Said determination module 41 is used for:
Confirm that the subband CQI information after said associating subband is selected comprises said M 1The K of the said first-selected subband of choosing of each descending carrier in each downstream carrier group in the individual downstream carrier group 1Bit CQI information, and the corresponding L of said downstream carrier group 1Bit subband identification information; Wherein, said K 1And L 1Be positive integer.
Said determination module 41 also is used for: for said M 1Each downstream carrier group in the individual downstream carrier group is confirmed L according to following method 1:
According to the sub-band division mode of any descending carrier in this downstream carrier group, confirm the bit number of the subband identification information that this downstream carrier group is corresponding; The bit number of the subband identification information that said definite this downstream carrier group is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value; Perhaps,
According to the sub-band division mode of each descending carrier in this downstream carrier group, confirm the bit number of the subband identification information that each descending carrier is corresponding in this downstream carrier group; The maximum number bits of the subband identification information that said definite each descending carrier is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value.
This terminal also comprises:
Give up module 43; The total bit number that is used for the subband CQI information after said associating subband is selected; Subband CQI information after perhaps said associating subband is selected need surpass at total bit number of the ascending control information of current sub-frame of uplink feedback when transmitting upper limit bit with other; Priority according to the channel condition information CSI reporting types of the priority of each descending carrier in said a plurality of descending carriers and/or each descending carrier; The CSI that need in current subframe, feed back part descending carrier/downstream carrier group in a plurality of descending carrier/downstream carrier group of CSI gives up, and makes remaining number of bits of feedback be no more than said transmission upper limit bit;
Said feedback module 42 is used for:
Carry out CSI at current sub-frame of uplink to base station feedback and give up the remaining feedback information in back.
Said feedback module 42 is used for:
Through Physical Uplink Control Channel PUCCH or Physical Uplink Shared Channel PUSCH, to the said subband CQI of base station feedback information.
Referring to Fig. 5, the embodiment of the invention provides a kind of base station, and this base station comprises:
Determination module 51 is used for confirming the bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected;
Receiver module 52; Be used for according to the subband CQI information bit after the said associating subband selection; To the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
Said determination module 51 is used for:
Confirm to be used for to represent that said terminal is from need be at the bit number K of the CQI information of a subband on the descending carrier that a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information are chosen; With the bit number A of the carrier wave indication information of a subband place descending carrier that is used to indicate said terminal to choose and the number L of bits sum that is used to indicate the subband identification information of the subband that said terminal chooses, be the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected; Wherein, said K, A and L are positive integer.
Figure BDA0000077908680000341
N is the number of the descending carrier of said terminal configuration/activation.
Said determination module 51 also is used for: confirm L according to following method:
According to the sub-band division mode of the descending carrier of the needs at said terminal each the configuration/activation in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, confirm the bit number of subband identification information of the descending carrier correspondence of said each configuration/activation;
The maximum number bits of the descending carrier corresponding subband identification information of said each configuration/activation of confirming is confirmed as the value of L.
Said determination module 51 is used for:
With said terminal need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, M is a positive integer;
Confirm to be used for to represent the carrier wave indication information of the subband place descending carrier that bit number K and the said terminal that is used for indicating this downstream carrier group of the CQI information of the subband that the said terminal in each downstream carrier group of a said M downstream carrier group is chosen are chosen bit number A, be used for indicating the number L of bits sum of the subband identification information of the subband that the said terminal of this downstream carrier group chooses, be the corresponding subband CQI number of bits of feedback of this downstream carrier group; Wherein, said K, A and L are positive integer;
Confirm the corresponding said subband CQI number of bits of feedback sum of each carrier set in the said M downstream carrier group, be the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected.
For each downstream carrier group in the said M downstream carrier group;
Figure BDA0000077908680000351
wherein, N is the number of the descending carrier of said terminal configuration/activation; Perhaps N is the number of descending carrier of the configuration/activation at the said terminal that comprises of said downstream carrier group.
Said determination module 51 also is used for: for each downstream carrier group of a said M downstream carrier group, confirm L according to following method:
According to the sub-band division mode of each descending carrier in this downstream carrier group, confirm the bit number of subband identification information corresponding on each descending carrier in this downstream carrier group;
The maximum number bits of the subband identification information that each descending carrier of confirming in this downstream carrier group is corresponding is confirmed as the value of the corresponding L of this downstream carrier group.
Said determination module 51 is used for:
At M is 2 o'clock, with said terminal need be divided into a carrier set at the downlink main carrier to carry in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, remaining descending auxilliary carrier wave is divided into another carrier set.The corresponding A of downstream carrier group at said downlink main carrier to carry place is 0
Said carrier wave indication information is a carrier index, perhaps indicates based on carrier index.
Said determination module 51 is used for:
Said terminal need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer;
Confirm to be used to represent said M 1The bit number K of the CQI information of the subband that each descending carrier in each downstream carrier group in the individual downstream carrier group is corresponding 1, and the number L of bits of the corresponding subband identification information of this downstream carrier group 1Sum is the corresponding subband CQI number of bits of feedback of this downstream carrier group; Wherein, said K 1And L 1Be positive integer;
Confirm said M 1The corresponding subband CQI number of bits of feedback sum of each downstream carrier group in the individual downstream carrier group is the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected.
Said determination module 51 also is used for: for said M 1Each downstream carrier group in the individual downstream carrier group is confirmed L according to following method 1:
According to the sub-band division mode of any descending carrier in this downstream carrier group, confirm the bit number of the subband identification information that this downstream carrier group is corresponding; The bit number of the subband identification information that said definite this downstream carrier group is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value; Perhaps,
According to the sub-band division mode of each descending carrier in this downstream carrier group, confirm the bit number of the subband identification information that each descending carrier is corresponding in this downstream carrier group; The maximum number bits of the subband identification information that said definite each descending carrier is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value.
This base station also comprises:
Give up module 53; Be used for the subband CQI information bit after said associating subband is selected; Subband CQI information after perhaps said associating subband is selected need surpass at total bit number of the ascending control information of current sub-frame of uplink feedback when transmitting upper limit bit with other; According to the priority of descending carrier and/or the priority of channel condition information CSI reporting types; Judge that said terminal need feed back the CSI of part descending carrier/downstream carrier group in a plurality of descending carrier/downstream carrier group of CSI and give up in current subframe; Make remaining number of bits of feedback be no more than said transmission upper limit bit, and, confirm as the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected again total bit number of the subband CQI information of remaining descending carrier/downstream carrier group;
Said receiver module 52 is used for:
According to the subband CQI information bit of the said terminal of confirming again after the associating subband of current sub-frame of uplink feedback is selected; To the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
Said receiver module 52 is used for:
Through Physical Uplink Control Channel PUCCH or Physical Uplink Shared Channel PUSCH, the said subband CQI information of receiving terminal feedback, perhaps said subband CQI information need be at the ascending control information of current sub-frame of uplink feedback with other.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides; The terminal is selected uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information; Confirm in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected; And in the subband CQI information of current sub-frame of uplink after base station feedback associating subband is selected, the subband CQI information of perhaps feeding back simultaneously after the associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.It is thus clear that; The present invention can select through multicarrier being united subband; Compress the subband CQI number of bits of feedback of a plurality of descending carriers, thus transmission when supporting the subband CQI of multicarrier, to improve the CQI efficiency of transmission; Make the base station in time obtain the CQI information of multicarrier, improve the accuracy of descending scheduling.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (56)

1. channel quality indicator (CQI) transmission of Information method is characterized in that this method comprises:
The terminal is selected uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information;
Said terminal is confirmed in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected;
Said terminal is in the subband CQI information of current sub-frame of uplink after the said associating subband of base station feedback is selected, and the subband CQI information of perhaps feeding back simultaneously after said associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.
2. the method for claim 1 is characterized in that, said terminal is selected to comprise to uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information:
First-selected subband said terminal is chosen a subband on one of them descending carrier and selected as the associating subband in said a plurality of descending carriers after;
Said terminal is confirmed to comprise in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected:
Said terminal confirms that the subband CQI information after said associating subband is selected comprises that the said first-selected subband of choosing of K bit CQI information, indication of the said first-selected subband of choosing belongs to the A bit carrier wave indication information of descending carrier and the L bit subband identification information of the said first-selected subband of choosing; Wherein, said K, A and L are positive integer.
3. method as claimed in claim 2; It is characterized in that,
Figure FDA0000077908670000011
N be the number of the descending carrier of said terminal configuration/activation.
4. method as claimed in claim 2 is characterized in that, definite method of L comprises:
Said terminal is according to the sub-band division mode of the descending carrier of each the configuration/activation of said needs in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, confirms the bit number of subband identification information of the descending carrier correspondence of said each configuration/activation;
The maximum number bits of the descending carrier corresponding subband identification information of said each configuration/activation that said terminal will be confirmed is confirmed as the value of L.
5. the method for claim 1 is characterized in that, said terminal is selected to comprise to uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information:
Said terminal need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, and M is a positive integer; And a subband of choosing in each downstream carrier group in a said M downstream carrier group on one of them descending carrier is united the first-selected subband after subband is selected as this downstream carrier group;
Said terminal is confirmed to comprise in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected:
Said terminal confirms that the subband CQI information after said associating subband is selected comprises the K bit CQI information of the said first-selected subband of choosing in each downstream carrier group in the said M downstream carrier group, the A bit carrier wave indication information of indicating the said first-selected subband place descending carrier of choosing in each downstream carrier group and the L bit subband identification information of the said first-selected subband of choosing in each downstream carrier group; Wherein, said K, A and L are positive integer.
6. method as claimed in claim 5; It is characterized in that; For each downstream carrier group in the said M downstream carrier group;
Figure FDA0000077908670000021
wherein, N is the number of the descending carrier of said terminal configuration/activation; Perhaps N is the number of the descending carrier of configuration/activation of comprising of said downstream carrier group.
7. method as claimed in claim 5 is characterized in that, for each downstream carrier group in the said M downstream carrier group, definite method of L comprises:
The bit number of the subband identification information of each descending carrier correspondence in this downstream carrier group is confirmed according to the sub-band division mode of each descending carrier in this downstream carrier group in said terminal;
The maximum number bits of the subband identification information that said terminal is corresponding with each descending carrier of confirming in this downstream carrier group is confirmed as the value of the corresponding L of this downstream carrier group.
8. method as claimed in claim 5; It is characterized in that; At M is 2 o'clock, and said terminal need be divided into a carrier set at the downlink main carrier to carry in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, and remaining descending auxilliary carrier wave is divided into another carrier set.
9. method as claimed in claim 8 is characterized in that, the corresponding A of downstream carrier group at said downlink main carrier to carry place is 0.
10. like claim 2 or 5 or 9 described methods, it is characterized in that said carrier wave indication information is a carrier index, perhaps indicates based on carrier index.
11. the method for claim 1 is characterized in that, said terminal is selected to comprise to uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information:
Said terminal need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information with said 1Individual downstream carrier group, M 1Be positive integer; And to said M 1Each descending carrier in each downstream carrier group in the individual downstream carrier group is chosen a subband as first-selected subband, and the first-selected subband of said each descending carrier has identical subband identification information;
Said terminal is confirmed to comprise in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected:
Said terminal confirms that the subband CQI information after said associating subband is selected comprises said M 1The K of the said first-selected subband of choosing of each descending carrier in each downstream carrier group in the individual downstream carrier group 1Bit CQI information, and the corresponding L of said downstream carrier group 1Bit subband identification information; Wherein, said K 1And L 1Be positive integer.
12. method as claimed in claim 11 is characterized in that, for said M 1Each downstream carrier group in the individual downstream carrier group, L 1Definite method comprise:
The bit number of the subband identification information that this downstream carrier group is corresponding is confirmed according to the sub-band division mode of any descending carrier in this downstream carrier group in said terminal; The bit number of the subband identification information that said terminal is corresponding with said definite this downstream carrier group is confirmed as the corresponding L of this downstream carrier group 1Value; Perhaps,
The bit number of the subband identification information that each descending carrier is corresponding in this downstream carrier group is confirmed according to the sub-band division mode of each descending carrier in this downstream carrier group in said terminal; The maximum number bits of the subband identification information that said definite each descending carrier is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value.
13. like claim 1-9; Arbitrary described method among the 11-12; It is characterized in that; In the subband CQI information of current sub-frame of uplink after the said associating subband of base station feedback is selected, the subband CQI information of perhaps feeding back simultaneously after said associating subband is selected to the base station at current sub-frame of uplink need be before the ascending control information of current sub-frame of uplink feedback with other at said terminal, and this method further comprises:
Total bit number of the subband CQI information after if said associating subband is selected; Subband CQI information after perhaps said associating subband is selected need surpass at total bit number of the ascending control information of current sub-frame of uplink feedback with other transmits upper limit bit; Then said terminal is according to the priority of the channel condition information CSI reporting types of the priority of each descending carrier in said a plurality of descending carriers and/or each descending carrier; The CSI that need in current subframe, feed back part descending carrier/downstream carrier group in a plurality of descending carrier/downstream carrier group of CSI gives up, and makes remaining number of bits of feedback be no more than said transmission upper limit bit;
Said terminal is in the subband CQI information of current sub-frame of uplink after the said associating subband of base station feedback is selected; The subband CQI information of perhaps feeding back simultaneously after said associating subband is selected to the base station at current sub-frame of uplink need comprise at the ascending control information of current sub-frame of uplink feedback with other:
Said terminal is carried out CSI at current sub-frame of uplink to base station feedback and is given up the remaining feedback information in back.
14. like claim 1-9; Arbitrary described method among the 11-12; It is characterized in that; Said terminal is through Physical Uplink Control Channel PUCCH or Physical Uplink Shared Channel PUSCH, and to the said subband CQI of base station feedback information, perhaps said subband CQI information need be at the ascending control information of current sub-frame of uplink feedback with other.
15. the method for reseptance of a channel quality indicator (CQI) information is characterized in that, this method comprises:
The bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected is confirmed in the base station;
Subband CQI information bit after said base station is selected according to said associating subband, to the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
16. method as claimed in claim 15 is characterized in that, the bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected is confirmed in said base station, comprising:
Said base station confirms to be used for to represent that said terminal is from need be at the bit number K of the CQI information of a subband on the descending carrier that a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information are chosen; With the bit number A of the carrier wave indication information of a subband place descending carrier that is used to indicate said terminal to choose and the number L of bits sum that is used to indicate the subband identification information of the subband that said terminal chooses, be the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected; Wherein, said K, A and L are positive integer.
17. method as claimed in claim 16; It is characterized in that,
Figure FDA0000077908670000051
N be the number of the descending carrier of said terminal configuration/activation.
18. method as claimed in claim 16 is characterized in that, definite method of L comprises:
Said base station is according to the sub-band division mode of the descending carrier of the needs at said terminal each the configuration/activation in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, confirms the bit number of subband identification information of the descending carrier correspondence of said each configuration/activation;
The maximum number bits of the descending carrier corresponding subband identification information of said each configuration/activation that said base station will be confirmed is confirmed as the value of L.
19. method as claimed in claim 15 is characterized in that, the bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected is confirmed in said base station, comprising:
Said base station need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information with said terminal, and M is a positive integer;
Said base station confirm to be used for to represent the carrier wave indication information of the subband place descending carrier that bit number K and the said terminal that is used for indicating this downstream carrier group of the CQI information of the subband that the said terminal in each downstream carrier group of a said M downstream carrier group is chosen are chosen bit number A, be used for indicating the number L of bits sum of the subband identification information of the subband that the said terminal of this downstream carrier group chooses, be the corresponding subband CQI number of bits of feedback of this downstream carrier group; Wherein, said K, A and L are positive integer;
The corresponding said subband CQI number of bits of feedback sum of each carrier set in the said M downstream carrier group is confirmed in said base station, is the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected.
20. method as claimed in claim 19; It is characterized in that; For each downstream carrier group in the said M downstream carrier group;
Figure FDA0000077908670000061
wherein, N is the number of the descending carrier of said terminal configuration/activation; Perhaps N is the number of descending carrier of the configuration/activation at the said terminal that comprises of said downstream carrier group.
21. method as claimed in claim 19 is characterized in that, for each downstream carrier group in the said M downstream carrier group, definite method of L comprises:
The bit number of subband identification information corresponding on each descending carrier in this downstream carrier group is confirmed according to the sub-band division mode of each descending carrier in this downstream carrier group in said base station;
The maximum number bits of the subband identification information that said base station is corresponding with each descending carrier of confirming in this downstream carrier group is confirmed as the value of the corresponding L of this downstream carrier group.
22. method as claimed in claim 19; It is characterized in that; At M is 2 o'clock; Said base station need be divided into a carrier set at the downlink main carrier to carry in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information with said terminal, and remaining descending auxilliary carrier wave is divided into another carrier set.
23. method as claimed in claim 22 is characterized in that, the corresponding A of downstream carrier group at said downlink main carrier to carry place is 0.
24., it is characterized in that said carrier wave indication information is a carrier index, perhaps indicates based on carrier index like claim 16 or 19 or 23 described methods.
25. method as claimed in claim 15 is characterized in that, the bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected is confirmed in said base station, comprising:
Said base station need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information with said terminal 1Individual downstream carrier group, M 1Be positive integer;
Said M is confirmed to be used to represent in said base station 1The bit number K of the CQI information of the subband that each descending carrier in each downstream carrier group in the individual downstream carrier group is corresponding 1, and the number L of bits of the corresponding subband identification information of this downstream carrier group 1Sum is the corresponding subband CQI number of bits of feedback of this downstream carrier group; Wherein, said K 1And L 1Be positive integer;
Said M is confirmed in said base station 1The corresponding subband CQI number of bits of feedback sum of each downstream carrier group in the individual downstream carrier group is the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected.
26. method as claimed in claim 25 is characterized in that, for said M 1Each downstream carrier group in the individual downstream carrier group, L 1Definite method comprise:
The bit number of the subband identification information that this downstream carrier group is corresponding is confirmed according to the sub-band division mode of any descending carrier in this downstream carrier group in said base station; The bit number of the subband identification information that said base station is corresponding with said definite this downstream carrier group is confirmed as the corresponding L of this downstream carrier group 1Value; Perhaps,
The bit number of the subband identification information that each descending carrier is corresponding in this downstream carrier group is confirmed according to the sub-band division mode of each descending carrier in this downstream carrier group in said base station; The maximum number bits of the subband identification information that said definite each descending carrier is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value.
27. like claim 15-23; Arbitrary described method among the 25-26; It is characterized in that the subband CQI information bit after said base station is selected according to said associating subband is to the subband CQI information of said terminal in current sub-frame of uplink feedback; Perhaps subband CQI information need be before the ascending control information of current sub-frame of uplink feedback be decoded with other, and this method further comprises:
The subband CQI information bit after if said associating subband is selected; Subband CQI information after perhaps said associating subband is selected need surpass at total bit number of the ascending control information of current sub-frame of uplink feedback with other transmits upper limit bit; Then said base station is according to the priority of descending carrier and/or the priority of channel condition information CSI reporting types; Judge that said terminal need feed back the CSI of part descending carrier/downstream carrier group in a plurality of descending carrier/downstream carrier group of CSI and give up in current subframe; Make remaining number of bits of feedback be no more than said transmission upper limit bit; And, confirm as the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected again with total bit number of the subband CQI information of remaining descending carrier/downstream carrier group;
Subband CQI information bit after said base station is selected according to said associating subband; To the subband CQI information of said terminal in current sub-frame of uplink feedback; Perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other, comprising:
Said base station is according to the subband CQI number of bits of feedback of the said terminal of confirming again after the associating subband of current sub-frame of uplink feedback is selected; To the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
28. like arbitrary described method among claim 15-23, the 25-26; It is characterized in that; Said base station is through Physical Uplink Control Channel PUCCH or Physical Uplink Shared Channel PUSCH; The said subband CQI information of receiving terminal feedback, perhaps said subband CQI information need be at the ascending control information of current sub-frame of uplink feedback with other.
29. a terminal is characterized in that, this terminal comprises:
Select module, be used for selecting uniting subband at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information;
Determination module is used to confirm in the subband CQI information of current sub-frame of uplink after the associating subband of base station feedback is selected;
Feedback module; Be used in the subband CQI information of current sub-frame of uplink after the said associating subband of base station feedback is selected, the subband CQI information of perhaps feeding back simultaneously after said associating subband is selected to the base station at current sub-frame of uplink need be at the ascending control information of current sub-frame of uplink feedback with other.
30. terminal as claimed in claim 29 is characterized in that, said selection module is used for:
First-selected subband after in said a plurality of descending carriers, choosing a subband on one of them descending carrier and selecting as the associating subband;
Said determination module is used for:
Confirm that the subband CQI information after said associating subband is selected comprises that the said first-selected subband of choosing of K bit CQI information, indication of the said first-selected subband of choosing belongs to the A bit carrier wave indication information of descending carrier and the L bit subband identification information of the said first-selected subband of choosing; Wherein, said K, A and L are positive integer.
31. terminal as claimed in claim 30; It is characterized in that,
Figure FDA0000077908670000081
N be the number of the descending carrier of said terminal configuration/activation.
32. terminal as claimed in claim 30 is characterized in that, said determination module also is used for: confirm L according to following method:
According to the sub-band division mode of the descending carrier of each the configuration/activation of said needs in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, confirm the bit number of subband identification information of the descending carrier correspondence of said each configuration/activation;
The maximum number bits of the descending carrier corresponding subband identification information of said each configuration/activation of confirming is confirmed as the value of L.
33. terminal as claimed in claim 29 is characterized in that, said selection module is used for:
Need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, M is a positive integer; And a subband of choosing in each downstream carrier group in a said M downstream carrier group on one of them descending carrier is united the first-selected subband after subband is selected as this downstream carrier group;
Said determination module is used for:
Confirm that the subband CQI information after said associating subband is selected comprises the K bit CQI information of the said first-selected subband of choosing in each downstream carrier group in the said M downstream carrier group, the A bit carrier wave indication information of indicating the said first-selected subband place descending carrier of choosing in each downstream carrier group and the L bit subband identification information of the said first-selected subband of choosing in each downstream carrier group; Wherein, said K, A and L are positive integer.
34. terminal as claimed in claim 33; It is characterized in that; For each downstream carrier group in the said M downstream carrier group;
Figure FDA0000077908670000091
wherein, N is the number of the descending carrier of said terminal configuration/activation; Perhaps N is the number of the descending carrier of configuration/activation of comprising of said downstream carrier group.
35. terminal as claimed in claim 33 is characterized in that, said determination module also is used for: for each downstream carrier group of a said M downstream carrier group, confirm L according to following method:
According to the sub-band division mode of each descending carrier in this downstream carrier group, confirm the bit number of the subband identification information of each descending carrier correspondence in this downstream carrier group;
The maximum number bits of the subband identification information that each descending carrier of confirming in this downstream carrier group is corresponding is confirmed as the value of the corresponding L of this downstream carrier group.
36. terminal as claimed in claim 33 is characterized in that, said selection module is used for:
At M is 2 o'clock, need be divided into a carrier set at the downlink main carrier to carry in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, and remaining descending auxilliary carrier wave is divided into another carrier set.
37. terminal as claimed in claim 36 is characterized in that, the corresponding A of downstream carrier group at downlink main carrier to carry place is 0.
38., it is characterized in that said carrier wave indication information is a carrier index, perhaps indicates based on carrier index like claim 30 or 33 or 37 described terminals.
39. terminal as claimed in claim 29 is characterized in that, said selection module is used for:
Need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer; And to said M 1Each descending carrier in each downstream carrier group in the individual downstream carrier group is chosen a subband as first-selected subband, and the first-selected subband of said each descending carrier has identical subband identification information;
Said determination module is used for:
Confirm that the subband CQI information after said associating subband is selected comprises said M 1The K of the said first-selected subband of choosing of each descending carrier in each downstream carrier group in the individual downstream carrier group 1Bit CQI information, and the corresponding L of said downstream carrier group 1Bit subband identification information; Wherein, said K 1And L 1Be positive integer.
40. terminal as claimed in claim 39 is characterized in that, said determination module also is used for: for said M 1Each downstream carrier group in the individual downstream carrier group is confirmed L according to following method 1:
According to the sub-band division mode of any descending carrier in this downstream carrier group, confirm the bit number of the subband identification information that this downstream carrier group is corresponding; The bit number of the subband identification information that said definite this downstream carrier group is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value; Perhaps,
According to the sub-band division mode of each descending carrier in this downstream carrier group, confirm the bit number of the subband identification information that each descending carrier is corresponding in this downstream carrier group; The maximum number bits of the subband identification information that said definite each descending carrier is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value.
41. like claim 29-37, arbitrary described terminal is characterized in that among the 39-40, this terminal also comprises:
Give up module; The total bit number that is used for the subband CQI information after said associating subband is selected; Subband CQI information after perhaps said associating subband is selected need surpass at total bit number of the ascending control information of current sub-frame of uplink feedback when transmitting upper limit bit with other; Priority according to the channel condition information CSI reporting types of the priority of each descending carrier in said a plurality of descending carriers and/or each descending carrier; The CSI that need in current subframe, feed back part descending carrier/downstream carrier group in a plurality of descending carrier/downstream carrier group of CSI gives up, and makes remaining number of bits of feedback be no more than said transmission upper limit bit;
Said feedback module is used for:
Carry out CSI at current sub-frame of uplink to base station feedback and give up the remaining feedback information in back.
42. like claim 29-37, arbitrary described terminal is characterized in that among the 39-40, said feedback module is used for:
Through Physical Uplink Control Channel PUCCH or Physical Uplink Shared Channel PUSCH, to the said subband CQI of base station feedback information, perhaps said subband CQI information need be at the ascending control information of current sub-frame of uplink feedback with other.
43. a base station is characterized in that, this base station comprises:
Determination module is used for confirming the bit number of the subband CQI information of terminal after the associating subband of current sub-frame of uplink feedback is selected;
Receiver module; Be used for according to the subband CQI information bit after the said associating subband selection; To the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
44. base station as claimed in claim 43 is characterized in that, said determination module is used for:
Confirm to be used for to represent that said terminal is from need be at the bit number K of the CQI information of a subband on the descending carrier that a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information are chosen; With the bit number A of the carrier wave indication information of a subband place descending carrier that is used to indicate said terminal to choose and the number L of bits sum that is used to indicate the subband identification information of the subband that said terminal chooses, be the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected; Wherein, said K, A and L are positive integer.
45. base station as claimed in claim 44; It is characterized in that,
Figure FDA0000077908670000121
N be the number of the descending carrier of said terminal configuration/activation.
46. base station as claimed in claim 44 is characterized in that, said determination module also is used for: confirm L according to following method:
According to the sub-band division mode of the descending carrier of the needs at said terminal each the configuration/activation in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, confirm the bit number of subband identification information of the descending carrier correspondence of said each configuration/activation;
The maximum number bits of the descending carrier corresponding subband identification information of said each configuration/activation of confirming is confirmed as the value of L.
47. base station as claimed in claim 43 is characterized in that, said determination module is used for:
With said terminal need be divided into M downstream carrier group at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, M is a positive integer;
Confirm to be used for to represent the carrier wave indication information of the subband place descending carrier that bit number K and the said terminal that is used for indicating this downstream carrier group of the CQI information of the subband that the said terminal in each downstream carrier group of a said M downstream carrier group is chosen are chosen bit number A, be used for indicating the number L of bits sum of the subband identification information of the subband that the said terminal of this downstream carrier group chooses, be the corresponding subband CQI number of bits of feedback of this downstream carrier group; Wherein, said K, A and L are positive integer;
Confirm the corresponding said subband CQI number of bits of feedback sum of each carrier set in the said M downstream carrier group, be the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected.
48. base station as claimed in claim 47; It is characterized in that; For each downstream carrier group in the said M downstream carrier group;
Figure FDA0000077908670000122
wherein, N is the number of the descending carrier of said terminal configuration/activation; Perhaps N is the number of descending carrier of the configuration/activation at the said terminal that comprises of said downstream carrier group.
49. base station as claimed in claim 47 is characterized in that, said determination module also is used for: for each downstream carrier group of a said M downstream carrier group, confirm L according to following method:
According to the sub-band division mode of each descending carrier in this downstream carrier group, confirm the bit number of subband identification information corresponding on each descending carrier in this downstream carrier group;
The maximum number bits of the subband identification information that each descending carrier of confirming in this downstream carrier group is corresponding is confirmed as the value of the corresponding L of this downstream carrier group.
50. base station as claimed in claim 47 is characterized in that, said determination module is used for:
At M is 2 o'clock, with said terminal need be divided into a carrier set at the downlink main carrier to carry in a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information, remaining descending auxilliary carrier wave is divided into another carrier set.
51. base station as claimed in claim 50 is characterized in that, said determination module is used for:
The corresponding A of downstream carrier group that confirms said downlink main carrier to carry place is 0.
52., it is characterized in that said carrier wave indication information is a carrier index, perhaps indicates based on carrier index like claim 44 or 47 or 51 described base stations.
53. base station as claimed in claim 43 is characterized in that, said determination module is used for:
Said terminal need be divided into M at a plurality of descending carriers of current sub-frame of uplink feedback subband CQI information 1Individual downstream carrier group, M 1Be positive integer;
Confirm to be used to represent said M 1The bit number K of the CQI information of the subband that each descending carrier in each downstream carrier group in the individual downstream carrier group is corresponding 1, and the number L of bits of the corresponding subband identification information of this downstream carrier group 1Sum is the corresponding subband CQI number of bits of feedback of this downstream carrier group; Wherein, said K 1And L 1Be positive integer;
Confirm said M 1The corresponding subband CQI number of bits of feedback sum of each downstream carrier group in the individual downstream carrier group is the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected.
54. base station as claimed in claim 53 is characterized in that, said determination module also is used for: for said M 1Each downstream carrier group in the individual downstream carrier group is confirmed L according to following method 1:
According to the sub-band division mode of any descending carrier in this downstream carrier group, confirm the bit number of the subband identification information that this downstream carrier group is corresponding; The bit number of the subband identification information that said definite this downstream carrier group is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value; Perhaps,
According to the sub-band division mode of each descending carrier in this downstream carrier group, confirm the bit number of the subband identification information that each descending carrier is corresponding in this downstream carrier group; The maximum number bits of the subband identification information that said definite each descending carrier is corresponding is confirmed as the corresponding L of this downstream carrier group 1Value.
55., it is characterized in that this base station also comprises like arbitrary described base station among claim 43-51, the 53-54:
Give up module; Be used for the subband CQI information bit after said associating subband is selected; Subband CQI information after perhaps said associating subband is selected need surpass at total bit number of the ascending control information of current sub-frame of uplink feedback when transmitting upper limit bit with other; According to the priority of descending carrier and/or the priority of channel condition information CSI reporting types; Judge that said terminal need feed back the CSI of part descending carrier/downstream carrier group in a plurality of descending carrier/downstream carrier group of CSI and give up in current subframe; Make remaining number of bits of feedback be no more than said transmission upper limit bit, and, confirm as the subband CQI information bit of said terminal after the associating subband of current sub-frame of uplink feedback is selected again total bit number of the subband CQI information of remaining descending carrier/downstream carrier group;
Said receiver module is used for:
According to the subband CQI information bit of the said terminal of confirming again after the associating subband of current sub-frame of uplink feedback is selected; To the subband CQI information of said terminal in current sub-frame of uplink feedback, perhaps subband CQI information need be decoded at the ascending control information of current sub-frame of uplink feedback with other.
56., it is characterized in that said receiver module is used for like arbitrary described base station among claim 43-51, the 53-54:
Through Physical Uplink Control Channel PUCCH or Physical Uplink Shared Channel PUSCH, the said subband CQI information of receiving terminal feedback, perhaps said subband CQI information need be at the ascending control information of current sub-frame of uplink feedback with other.
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Application publication date: 20120215