CN102480338B - Reporting source of channel state information indicating means, report method, services sites and terminal - Google Patents
Reporting source of channel state information indicating means, report method, services sites and terminal Download PDFInfo
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- CN102480338B CN102480338B CN201010590952.5A CN201010590952A CN102480338B CN 102480338 B CN102480338 B CN 102480338B CN 201010590952 A CN201010590952 A CN 201010590952A CN 102480338 B CN102480338 B CN 102480338B
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- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
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Abstract
The invention provides a kind of reporting source of channel state information indicating means, report method, services sites and terminal, belong to communication technical field.The services sites of the embodiment of the present invention comprises grouping module, scheduler module, distribution module; Indicating means comprises: divide into groups to multiple component carrier, obtains at least one group of component carrier; Distribute corresponding to described at least one sub-frame of uplink often organizing component carrier respectively for often organizing component carrier; Terminal is indicated to by corresponding to described at least one sub-frame of uplink often organizing component carrier.Terminal comprises: configuration module, reporting module; Report method comprises: obtain the instruction from services sites, and knows at least one group of component carrier according to described instruction and correspond at least one sub-frame of uplink often organizing component carrier; Describedly often organize component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively.The embodiment of the present invention can be applied in TDD system.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of reporting source of channel state information indicating means, report method, services sites and terminal.
Background technology
LTE (LongTermEvolution, Long Term Evolution) technology is the evolution of 3G, and it improves and enhances the aerial access technology of 3G.LTE-A (evolution of LTE-Advance, LTE) is the further enhancing of LTE technology, has higher bandwidth requirement.In order to meet the requirement of LTE-A, lte-a system has introduced carrier convergence (ComponentAggregation, CA) technology at present.Carrier convergence be the carrier wave multiple component carrier (ComponentCarrier, CC) being pooled a more large bandwidth, to support the defeated rate of high-speed data.
In a kind of lte-a system, UE (UserEquipment, subscriber equipment) needs to some CSI of system feedback (ChannelStateInformation, channel condition information); Wherein CSI comprises CQI (ChannelQualityIndicator, channel quality indicate), PMI (PrecodingMatrixIndicator, pre-coding matrix indicates) and RI (RankIndicator, order indicates) etc.).ENB (eNodeB, base station) determine descending used MCS (ModulationandCodingScheme according to the feedback information received, modulation coding mode), realize AMC (AdaptiveModulationandCoding, Adaptive Modulation and Coding); Wherein AMC is a kind of change according to channel condition, dynamically selects suitable modulation coding mode.
In lte-a system, reporting of channel condition information comprises trigger-type and periodically reports two kinds.Trigger-type reports and mainly feeds back in PUSCH (PhysicalUplinkSharedChannel, Physical Uplink Shared Channel) resource; Periodically report mainly in the upper feedback of PUCCH (PhysicalUplinkControlChannel, Physical Uplink Control Channel).
Periodical channel state information feedback on PUCCH can be divided into broadband report pattern and frequently choose report pattern.As shown in Figure 1, broadband reports pattern only to feed back broadband CSI information, and feedback cycle is be spaced apart Np between WB (Wideband, broadband) reports.As shown in Figure 2, frequently choose the feedback of report pattern then existing broadband CSI information, also have the feedback of subband CSI information, its feedback cycle is the interval between two WB report, i.e. H × Np; H=J × K+1.Wherein ,+1 represents WB feedback, and J × K represents K J SB (Subband, subband) feedback, and the account form of J and K is as follows:
Whole WB (Wideband, broadband) is divided into J BP (bandwidthpart, fractional bandwidth), comprises again multiple SB (Subband, subband) in each BP.The CSI of the best SB in BP is only selected to report in prior art.K represents and reports circulation.
In TDD (TimeDivisionDuplexing, time division duplex) system, in configuration frame (10ms), some subframe is used for uplink, and some subframe is used for downlink transfer.The proportioning of ascending-descending subframes has 7 kinds of configurations (the first hurdle " configuration " namely in chart 3), comprises two kinds of configuration cycles of 5ms and 10ms, as shown in Figure 3.Wherein U represents sub-frame of uplink, and D represents descending sub frame, and S represents special subframe (can be regarded as descending when calculating proportioning).Under carrier convergence scene, need the channel condition information reporting multiple DLCC on a ULCC, particularly for TDD system, UL subframe is only equipped with in certain bits, and under some UL-DL configures (as configured 2,4,5), the quantity of UL subframe is very limited, and the periodicity under carrier convergence scene reports feedback quantity comparatively large, how farthest to avoid conflict and can ensure that transmission precision is a problem.
Under CA scene, need the CSI reporting multiple DL (Downlink, descending) CC on a UL (Uplink, up) CC (i.e. ULPCC), the data volume periodically reported is larger.Such as: under a kind of LTE-ARel-10 carrier convergence scene of the prior art, a UE can support at most 5 descending component carriers, and only have ULPCC (PrimaryComponentCarrier, main component carrier) there is PUCCH, and likely have at most the CSI of 5 DLCC to need to report.And the UL subframe in TDD system only has in ad-hoc location, and under some UL/DL configures (being such as configured to the situation of 2,4,5), the quantity of UL subframe is very limited.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Reporting schemes of the prior art sorts according to priority to multiple CC, in PUCCH, only reports the CSI of the CC that priority is the highest, the CSI then discard processing of other CC.Can reduce like this and report precision, affect the scheduling of eNB.
Summary of the invention
In order to effectively report the CSI of CC, embodiments provide a kind of channel state information reporting method and device of carrier convergence.Described technical scheme is as follows:
The embodiment of the present invention proposes a kind of indicating means of reporting source of channel state information, comprising:
Multiple component carrier is divided into groups, obtains at least one group of component carrier;
Distribute corresponding to described at least one sub-frame of uplink for reporting status information of channel often organizing component carrier respectively for often organizing component carrier;
Terminal is indicated to by corresponding to described at least one sub-frame of uplink often organizing component carrier.
The embodiment of the present invention also proposed a kind of channel state information reporting method, comprising:
Obtain the instruction from services sites;
Know at least one group of component carrier according to described instruction and correspond at least one sub-frame of uplink often organizing component carrier;
Describedly often organize component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively.
The embodiment of the present invention also proposed a kind of services sites, comprising:
Grouping module, for dividing into groups to multiple component carrier, obtains at least one group of component carrier;
Scheduler module, for distributing corresponding to described at least one sub-frame of uplink for reporting status information of channel often organizing component carrier respectively for often organizing component carrier;
Distribution module, for being indicated to terminal by corresponding to described at least one sub-frame of uplink often organizing component carrier.
The embodiment of the present invention also proposed a kind of terminal, comprising:
Configuration module, for obtaining the instruction from services sites, and knows at least one group of component carrier according to described instruction and corresponds at least one sub-frame of uplink often organizing component carrier;
Reporting module, for describedly often organizing component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively.
The beneficial effect of the technical scheme that the embodiment of the present invention provides is: the channel state information reporting method and the device that embodiments provide a kind of carrier convergence, by the mode that the component carrier in carrier convergence is carried out dividing into groups, like this can when the mode that periodic reports, the CSI as far as possible realizing carrying out multiple CC in the PUCCH resource of a CC reports, and reports precision to improve.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used in embodiment below, apparently, listed accompanying drawing is only some embodiments of the present invention below, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that the broadband in existing periodical channel state information feedback reports the schematic diagram of pattern;
Fig. 2 is that the frequency in existing periodical channel state information feedback chooses the schematic diagram of report pattern;
Fig. 3 is the configuration parameter schematic diagram of configuration frame;
Fig. 4 is the schematic flow sheet of first embodiment of the invention;
Fig. 5 is the schematic flow sheet carrying out in second embodiment of the invention dividing into groups;
Fig. 6 is the schematic flow sheet of third embodiment of the invention;
Fig. 7 is the schematic flow sheet obtaining instruction in third embodiment of the invention;
Fig. 8 is the structural representation of fifth embodiment of the invention;
Fig. 9 is the structural representation of sixth embodiment of the invention;
Figure 10 is the structural representation of seventh embodiment of the invention;
Figure 11 is the structural representation of eighth embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
First embodiment of the invention proposes a kind of indicating means of reporting source of channel state information, and its flow process as shown in Figure 4, comprising:
Step 101, multiple component carrier to be divided into groups, obtain at least one group of component carrier;
Step 102, for often organize component carrier distribute corresponding to described at least one sub-frame of uplink often organizing component carrier respectively; Terminal is indicated to by corresponding to described at least one sub-frame of uplink often organizing component carrier.
In the embodiment of the present invention, embodiments provide a kind of services sites, by the mode that the component carrier in carrier convergence is carried out dividing into groups, like this can when the mode that periodic reports, the CSI as far as possible realizing carrying out multiple CC in the PUCCH resource of a CC reports, and reports precision to improve.Correspond to and often organize at least one sub-frame of uplink of component carrier for often organizing the channel condition information of component carrier described in terminal to report, as CQI.
Embodiment 2
In a step 101, be in order to CC is divided into groups, and limited sub-frame of uplink distributed to each grouping, all transmit CSI by this sub-frame of uplink to make all CC in each grouping.Report efficiency to can further improve, this step 201 can be specially as shown in Figure 5:
Step 2011, according to the configuration configuration of frame and the report cycle Np of CC, determine the sub-frame of uplink number that described report cycle Np comprises.Such as: in allocation list as shown in Figure 3, when adopting configuration 0, and the report cycle Np of component carrier CC in carrier convergence is 10ms, then this report cycle Np comprises 3 sub-frame of uplink.
Step 2012, component carrier to be divided into groups; A component carrier is at least comprised in each grouping; Packet count is not more than the sub-frame of uplink number in the report cycle of described each CC, and packet count is less than the greatest common divisor of the report cycle of all component carriers.
In embodiments of the present invention, can divide into groups to CC in the following way:
The component carrier with identical report cycle can be divided into one group.The complexity of calculating can be reduced like this, reduce overhead.Same above example (comprising 4 CC is example, and wherein the report cycle of CC1 and CC2 is the report cycle of 5ms, CC3 and CC4 is 10ms), can be divided into two groups, first group is CC1 and CC2, and second group is CC3 and CC4.
Can also be: at least one component carrier that report cycle in described multiple component carrier is greater than preset value is divided into one group of component carrier.This is because the channel quality of the larger component carrier (such as 10ms or 20ms) of report cycle is relatively good, also can not cause too much impact to scheduling even if therefore clash when reporting CSI.
In like manner, when packet count is enough, the component carrier that as far as possible report cycle should be less than preset value is divided into separately one group.This is due to the poor CC of channel quality, and also collocating uplink subframe of dividing into groups separately can be avoided a conflict, and improves the quality of base station side scheduling.Same above example, when largest packet number can be 3, should divide into groups CC1 and CC2 separately.Certainly, when largest packet number is less (being such as 2), then can be divided into groups by any one mode aforesaid.
State on the invention in embodiment, CC can be divided into multiple grouping, and packet count is not more than total sub-frame of uplink number.CC can be made like this to be dispersed in as far as possible many groupings, to prevent from farthest avoiding conflict, to ensure transmission precision.Certainly, the maximum number that sub-frame of uplink number just divides into groups, only needs packet count to be not more than sub-frame of uplink number.
Step 102, for often organize component carrier distribute corresponding to described at least one sub-frame of uplink often organizing component carrier respectively; And be indicated to terminal by corresponding to described at least one sub-frame of uplink often organizing component carrier.
Such as: in certain configuration frame, use configuration 0, then as shown in Figure 3, the sub-frame of uplink under this configuration condition is more, has 3 sub-frame of uplink within a configuration cycle: subframe 2, subframe 3, subframe 4.When the Np of all CC is the multiple of 10ms or 10ms, the sub-frame offset offset of therefore all groupings can choose arbitrarily from subframe 2,3,4,7,8,9, only needs different CC to select different subframes.
When the Np of all CC is 5ms, or the Np of part CC be 5ms and the Np of other CC is the multiple of 5ms time, the sub-frame offset of therefore all groupings selects from 2,3,4.
To comprise 4 CC in this CA altogether, wherein the report cycle of CC1 and CC2 is the report cycle of 5ms, CC3 and CC4 is 10ms.Therefore according to step 2011, the highlyest 4 CC can be divided into 3 groups.And the greatest common divisor of report cycle Np between three groupings is 5ms, is greater than packet count 3, meets the requirement of step 2012.In order to improve the efficiency reported, as far as possible large packet count therefore can be selected.
The mode of therefore dividing into groups can be: CC1 and CC2 is the first grouping, CC3 and CC4 is the second grouping; Can also be: CC1 is the first grouping, CC2 is the second grouping, CC3 and CC4 is the 3rd grouping; Can also be: CC1 and CC2 is the first grouping, CC3 is the second grouping, CC4 is the 3rd grouping.Considering from another point of view, in order to reduce the collision of CSI and A/N, being only divided into two groups to be also possibility, as long as be no more than largest packet number.The CC so also met in the same grouping in step 2021 has identical report cycle.Wherein, largest packet number can be 3, therefore with CC1 be the first grouping, CC2 is the second grouping, CC3 and CC4 the 3rd is grouped into example, the first grouping and the second sub-frame offset divided into groups can be two optionally different in 2,3,4, as selected 3 and 4; 3rd grouping chooser frame shifting amount is 2, but in the 3rd packets inner, the sub-frame offset of CC3 and CC4 can be selected from 2,7, namely CC3 and CC4 can take subframe 2 and 7 respectively, thus avoids the situation that the CSI of CC3 and CC4 possible in a subframe is dropped more than the capacity of PUCCH as far as possible.Sub-frame offset is used to indicate subframe position.
Wherein, when Np period ratio is larger, also there will be in a Np and have multiple sub-frame of uplink.Such as: in certain configuration frame, use configuration 5, and Np is 20ms.As shown in Figure 3, in a report cycle Np, have two sub-frame of uplink, namely sub-frame offset offset is respectively 2 and 12.Now CC can be divided into two groupings.
It should be noted that, for Np=1ms, and configuration frame be configured to 0,1,3,4,6 time, because sub-frame of uplink is continuous print, therefore all CC are placed on one group.
In embodiments of the present invention, can be divided into groups to multiple CC by above-mentioned method and distribute sub-frame of uplink in base station, then to be reported by the CSI of multiple CC configuration parameter (such as report cycle, sub-frame offset, report pattern) to inform to UE by RRC signaling.Such UE just can report configuration parameter that CSI is reported base station according to this, and suitable MCS (ModulationandCodingScheme, Modulation and Coding Scheme) is selected after receiving the CSI information that UE reports in base station.
Wherein, base station can will correspond to described at least one I often organizing component carrier by radio resource control RRC signaling
cQI/PMInotification terminal, corresponds to each I often organizing component carrier
cQI/PMIbe respectively used to instruction and correspond to the described sub-frame of uplink often organizing component carrier.
The value of report cycle Np can have a variety of, the value of Np (Np=1 is applicable to configuration 0,1,3,4,6, Np=5 and is applicable to 0,1,2,6, and other Np is applicable to all configuration frames) as shown in the table under tdd mode.
Wherein, the mode of base station indicating terminal can be multiple, such as:
Base station can by rrc layer by I
cQI/PMIinform UE, particularly, mark can be carried to indicate I in base station in RRC signaling
cQI/PMIcorresponding CC group, such as, if carry the mark of CC1 and CC2 in RRC signaling, then I
cQI/PMIbe used to indicate by the sub-frame of uplink of CC1 and CC2 place CC group.UE after receiving above-mentioned instruction, according to this I in table 1
cQI/PMIthe value of corresponding Np is found in the interval at parameter place, and calculates N
oFFSET, CQIdeviant, thus determine to report that this group CC's report subframe, then reporting CSI according to cycle and deviant, specifically reporting content to determine by reporting pattern.By the I of RRC signaling by multiple CC group
cQI/PMIduring notice UE, can once by the I of multiple CC group
cQI/PMInotice UE, also can notify several times.The I of multiple CC in a CC group
cQI/PMIalso can notify UE several times, such as, when there being CC1 and CC2 in group, can dividing and send 2 I 2 times
cQI/PMI, 2 I
cQI/PMIindicate the sub-frame of uplink of the correspondence of CC1 and CC2 respectively, but UE is based on these 2 I
cQI/PMIthe N tried to achieve
oFFSET, CQIdeviant is identical, because CC1 and CC2 belongs to same group, although use different I
cQI/PMIindicate, but instruction result is identical, the present embodiment does not limit this.
Table 1
For different patterns, broadband reports the cycle of pattern to be Np, and the report cycle frequently choosing report pattern middle width strip is H*Np, wherein H=J*K+1.Report in feedback model at the CQI of choosing periodicity frequently, whole broadband is divided into J fractional bandwidth (BP, Bandwidthpart), each BP comprises multiple subband, only selects an optimal sub-band (BestSB) to report in each BP, K represents and reports circulation, as in Fig. 2, J=3, K=2, namely the optimal sub-band having 3 BP reports, and subband reports circulation twice.
In the embodiment of the present invention, above-mentioned step 101-102 can be applied to base station side, by dividing into groups to CC, TDM (the TimeDivisionMultiplex selecting different sub-frame offsets such between different group, time division multiplexing) mode can farthest avoid conflict, by grouping method different CC can be dispersed in multiple sub-frame resources as far as possible.
Embodiment 3
Third embodiment of the invention proposes the indicating means of the reporting source of channel state information in first, second embodiment of a kind of application of aforementioned, and carry out channel state information reporting method, its flow process as shown in Figure 6, comprising:
Step 301, obtain instruction from services sites, and know at least one group of component carrier according to described instruction and correspond at least one sub-frame of uplink often organizing component carrier;
Step 302, describedly often organize component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively.
Wherein, above-mentioned step 301-302 can be applied to UE side, to coordinate the indicating means as the base station side of first, second embodiment to obtain instruction, reports to carry out CSI.Like this can to pass through to divide into groups to CC, TDM (the TimeDivisionMultiplex selecting different sub-frame offsets such between different group, time division multiplexing) mode can farthest avoid conflict, by grouping method different CC can be dispersed in multiple sub-frame resources as far as possible.
Embodiment 4
Fourth embodiment of the invention proposes a kind of channel state information reporting method, is to improve on the basis of aforesaid 3rd embodiment, comprising:
In step 301, this instruction can be sent to UE side by radio resource control RRC signaling by base station, and namely described step 301 can comprise as shown in Figure 7:
Step 4011, receive the described instruction sent by radio resource control RRC signaling, described instruction comprises corresponding to described at least one I often organizing component carrier
cQI/PMI;
Step 4012, to find in preset table corresponding to the described each I often organizing component carrier
cQI/PMIthe interval at place, and will with described each I
cQI/PMIeach subframe of the interval correspondence at place is defined as corresponding to the described sub-frame of uplink often organizing component carrier.
This preset table can be the table 1 in aforementioned second embodiment.
When two or more CC in a grouping adopt same sub-frame of uplink to report CSI, can also comprise before this step 302:
When described sub-frame of uplink comprises the CSI of two or more CC, then send after described multiple CSI being optimized.Wherein, the mode of optimization can comprise:
Can (Format2 be 11bits according to channel capacity, Format3 is 20bits) to reporting content to accept or reject, abandon the part exceeding channel capacity, such as CC1 and CC2 is in a group, use PUCCHFormat2, if CC1 and CC2 CSI be all 4bits broadband CQI, then always total 8bits informational needs transmission, can not need to abandon; And if the CSI of CC1 is 4bits broadband CQI, 4bits broadband P MI and 3bits the 2nd code word differential broadband CQI information, and CC1 is PCC, then the CSI exceeding the CC2 of capacity will be dropped.
Or press the content prioritization sequence of CSI, and only report the CSI of limit priority;
Or adopt new form such as PUCCHFormat3 to report.
The embodiment of the present invention can by the configuration of mode determination sub-frame of uplink of tabling look-up, to reduce volume of transmitted data.Meanwhile, can adopt at multiple CC and samely report subframe to report during CSI to be optimized, to improve the efficiency uploaded.
Embodiment 5
Fourth embodiment of the invention proposes a kind of services sites, and its structure as shown in Figure 8, comprising:
Grouping module 11, for dividing into groups to multiple component carrier, obtains at least one group of component carrier;
Scheduler module 12, for distributing corresponding to described at least one sub-frame of uplink often organizing component carrier respectively for often organizing component carrier;
Distribution module 13, for being indicated to terminal by corresponding to described at least one sub-frame of uplink often organizing component carrier.
In the embodiment of the present invention, embodiments provide a kind of services sites, by the mode that the component carrier in carrier convergence is carried out dividing into groups, like this can when the mode that periodic reports, in the PUCCH resource of a CC, make multiple CC carry out CSI realization to report, report precision to improve as far as possible.
Embodiment 6
Sixth embodiment of the invention proposes a kind of services sites, is to improve on the basis of aforesaid 5th embodiment, and its structure as shown in Figure 9, comprising:
Grouping module 11, for dividing into groups to multiple component carrier, obtains at least one group of component carrier;
This grouping module 11 can be specially:
Sub-frame of uplink determining unit 111, for according to the configuration and the multiple component carrier report cycle separately that configure frame, determines the sub-frame of uplink number that the report cycle of each component carrier comprises;
Packet parameters unit 112, for dividing into groups to multiple component carrier, obtain at least one group of component carrier, each sub-frame of uplink number that the report cycle that packet count is not more than described each component carrier comprises, and be less than the greatest common divisor of the report cycle of described multiple component carrier.
In embodiments of the present invention, grouping module 11 can be divided into groups to CC in the following way:
The component carrier with identical report cycle can be divided into one group.The complexity of calculating can be reduced like this, reduce overhead.Same above example (comprising 4 CC is example, and wherein the report cycle of CC1 and CC2 is the report cycle of 5ms, CC3 and CC4 is 10ms), can be divided into two groups, first group is CC1 and CC2, and second group is CC3 and CC4.
Can also be: at least one component carrier that report cycle in described multiple component carrier is greater than preset value is divided into one group of component carrier.This is because the channel quality of the larger component carrier (such as 10ms or 20ms) of report cycle is relatively good, also can not cause too much impact to scheduling even if therefore clash when reporting CSI.
In like manner, can also be: when packet count is enough that the component carrier that as far as possible report cycle should be less than preset value is divided into separately one group.This is due to the poor CC of channel quality, and also collocating uplink subframe of dividing into groups separately can be avoided a conflict, and improves the quality of base station side scheduling.Same above example, when largest packet number can be 3, should divide into groups CC1 and CC2 separately.Certainly, when largest packet number is less (being such as 2), then can be divided into groups by any one mode aforesaid.
State on the invention in embodiment, CC can be divided into multiple grouping, and packet count is not more than total sub-frame of uplink number.CC can be made like this to be dispersed in as far as possible many groupings, to prevent from farthest avoiding conflict, to ensure transmission precision.Certainly, the maximum number that sub-frame of uplink number just divides into groups, only needs packet count to be not more than sub-frame of uplink number.
Scheduler module 12, for distributing respectively corresponding to described at least one sub-frame of uplink often organizing component carrier for often organizing component carrier.
Distribution module 13, for being indicated to terminal by corresponding to described at least one sub-frame of uplink often organizing component carrier.
Wherein, distribution module 13 can will correspond to described at least one I often organizing component carrier by radio resource control RRC signaling
cQI/PMInotification terminal, corresponds to each I often organizing component carrier
cQI/PMIbe respectively used to instruction and correspond to the described sub-frame of uplink often organizing component carrier.
The value of report cycle Np can have a variety of, the value of Np (Np=1 is applicable to configuration 0,1,3,4,6, Np=5 and is applicable to 0,1,2,6, and other Np is applicable to all configuration frames) as shown in the table under tdd mode.
Wherein, the mode of base station indicating terminal can be multiple, such as:
Base station can by rrc layer by I
cQI/PMIinform UE, UE finds the value of corresponding Np according to the interval at this parameter place in the table 1 in the second embodiment, and calculates N
oFFSET, CQIdeviant, then reports CSI according to cycle and deviant, specifically reports content to determine by reporting pattern.
For different patterns, broadband reports the cycle of pattern to be Np, and the report cycle frequently choosing report pattern middle width strip is H*Np, wherein H=J*K+1.Report in feedback model at the CQI of choosing periodicity frequently, whole broadband is divided into J fractional bandwidth (BP, Bandwidthpart), each BP comprises multiple subband, only selects an optimal sub-band (BestSB) to report in each BP, K represents and reports circulation, as in Fig. 2, J=3, K=2, namely the optimal sub-band having 3 BP reports, and subband reports circulation twice.
In the embodiment of the present invention, above-mentioned services sites can be base station, by dividing into groups to CC, TDM (the TimeDivisionMultiplex selecting different sub-frame offsets such between different group, time division multiplexing) mode can farthest avoid conflict, by grouping method different CC can be dispersed in multiple sub-frame resources as far as possible.
It should be noted that: above-mentioned 4th, the 5th embodiment is only illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, internal structure by device is divided into different functional modules, to complete all or part of function described above.The method that above-mentioned 4th, the 5th embodiment and first, second embodiment propose belongs to same design; Therefore same section repeats no more.Described services sites is used for for Terminal for service, and its common form is a base station.
Embodiment 7
Invent the 7th embodiment services sites proposed in a kind of 5th, the 6th embodiment of application of aforementioned and carry out the terminal that CSI reports, its structure as shown in Figure 10, comprising:
Configuration module 21, for obtaining the instruction from services sites, and knows at least one group of component carrier according to described instruction and corresponds at least one sub-frame of uplink often organizing component carrier;
Reporting module 22, for describedly often organizing component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively.
Wherein, above-mentioned terminal can be UE, carries out CSI report to coordinate the services sites as the 5th, the 6th embodiment.Like this can to pass through to divide into groups to CC, TDM (the TimeDivisionMultiplex selecting different sub-frame offsets such between different group, time division multiplexing) mode can farthest avoid conflict, by grouping method different CC can be dispersed in multiple sub-frame resources as far as possible.
Embodiment 8
Invent the 8th embodiment and propose a kind of terminal, be improve on the basis of the 7th embodiment, its structure as shown in figure 11, comprising:
Configuration module 21, for obtaining the instruction from services sites, and knows at least one group of component carrier according to described instruction and corresponds at least one sub-frame of uplink often organizing component carrier;
Described configuration module 21 comprises:
Acquiring unit 211, for receiving the described instruction sent by radio resource control RRC signaling, described instruction comprises corresponding to described at least one I often organizing component carrier
cQI/PMI;
Allocation units 212, for finding corresponding to the described each I often organizing component carrier in preset table
cQI/PMIthe interval at place, and will with described each I
cQI/PMIeach subframe of the interval correspondence at place is defined as corresponding to the described sub-frame of uplink often organizing component carrier.
This preset table can be the table 1 in aforementioned second embodiment.
Reporting module 22, for describedly often organizing component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively.
The embodiment of the present invention can by the configuration of mode determination sub-frame of uplink of tabling look-up, to reduce volume of transmitted data.Meanwhile, can adopt at multiple CC and samely report subframe to report during CSI to be optimized, to improve the efficiency uploaded.
It should be noted that: above-mentioned 7th, the 8th embodiment is only illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, internal structure by device is divided into different functional modules, to complete all or part of function described above.The method that above-mentioned 7th, the 8th embodiment and the 3rd, the 4th embodiment propose belongs to same design; Therefore same section repeats no more.Described terminal can be all types of user equipment such as mobile phone, computer, ipad.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a reporting source of channel state information indicating means, is characterized in that, comprising:
Services sites divides into groups to multiple component carrier, obtains at least one group of component carrier;
Described services sites is often organize component carrier to distribute corresponding to described at least one sub-frame of uplink for reporting status information of channel often organizing component carrier respectively;
Described services sites is indicated to terminal by corresponding to described at least one sub-frame of uplink often organizing component carrier, makes described terminal describedly often organize component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively;
Wherein, described services sites comprises being indicated to terminal corresponding to described at least one sub-frame of uplink often organizing component carrier:
Described services sites will correspond to described at least one I often organizing component carrier by radio resource control RRC signaling
cQI/PMInotification terminal, corresponds to each I often organizing component carrier
cQI/PMIbe respectively used to instruction and correspond to the described sub-frame of uplink often organizing component carrier.
2. method according to claim 1, is characterized in that, describedly divides into groups to multiple component carrier, obtains at least one group of component carrier and comprises:
According to configuration and multiple component carrier report cycle separately of configuration frame, determine the sub-frame of uplink number that the report cycle of each component carrier comprises;
Multiple component carrier is divided into groups, obtains at least one group of component carrier, each sub-frame of uplink number that the report cycle that packet count is not more than described each component carrier comprises, and be less than the greatest common divisor of the report cycle of described multiple component carrier.
3. method according to claim 1 and 2, is characterized in that, describedly divides into groups to component carrier, obtains at least one group of component carrier and comprises: the component carrier with identical report cycle is divided into one group.
4. method according to claim 1 and 2, is characterized in that, describedly divides into groups to component carrier, obtains at least one group of component carrier and comprises:
At least one component carrier that report cycle in described multiple component carrier is greater than preset value is divided into one group of component carrier; Or
Each component carrier that report cycle in described multiple component carrier is less than preset value is individually divided into one group of component carrier.
5. a channel state information reporting method, is characterized in that, comprising:
Obtain the instruction from services sites, and know at least one group of component carrier according to described instruction and correspond at least one sub-frame of uplink often organizing component carrier, described instruction comprises corresponding to described at least one I often organizing component carrier
cQI/PMI, described at least one I often organizing component carrier
cQI/PMIbe respectively used to instruction and correspond to described at least one sub-frame of uplink often organizing component carrier, described at least one group of component carrier is that described services sites carries out grouping to multiple component carrier and obtains, and to be described services sites be described at least one sub-frame of uplink often organizing component carrier that described component carrier of often organizing carries out distribution and obtains;
Describedly often organize component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively.
6. method according to claim 5, is characterized in that, described acquisition from the instruction of services sites, and is known at least one group of component carrier according to described instruction and comprises corresponding at least one sub-frame of uplink often organizing component carrier:
Receive the described instruction sent by radio resource control RRC signaling, described instruction comprises corresponding to described at least one I often organizing component carrier
cQI/PMI;
Find in preset table corresponding to the described each I often organizing component carrier
cQI/PMIthe interval at place, and will with described each I
cQI/PMIeach subframe of the interval correspondence at place is defined as corresponding to the described sub-frame of uplink often organizing component carrier.
7. a services sites, is characterized in that, comprising:
Grouping module, for dividing into groups to multiple component carrier, obtains at least one group of component carrier;
Scheduler module, for distributing corresponding to described at least one sub-frame of uplink for reporting status information of channel often organizing component carrier respectively for often organizing component carrier;
Distribution module, for being indicated to terminal by corresponding to described at least one sub-frame of uplink often organizing component carrier, makes described terminal describedly often organize component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively;
Wherein, described distribution module will correspond to described at least one I often organizing component carrier by radio resource control RRC signaling
cQI/PMInotification terminal, corresponds to each I often organizing component carrier
cQI/PMIbe respectively used to instruction and correspond to the described sub-frame of uplink often organizing component carrier.
8. services sites according to claim 7, is characterized in that, described grouping module comprises:
Sub-frame of uplink determining unit, for according to the configuration and the multiple component carrier report cycle separately that configure frame, determines the sub-frame of uplink number that the report cycle of each component carrier comprises;
Packet parameters unit, for dividing into groups to multiple component carrier, obtain at least one group of component carrier, each sub-frame of uplink number that the report cycle that packet count is not more than described each component carrier comprises, and be less than the greatest common divisor of the report cycle of described multiple component carrier.
9. the services sites according to claim 7 or 8, is characterized in that, the component carrier with identical report cycle is divided into one group by described packet parameters unit.
10. the services sites according to claim 7 or 8, is characterized in that, at least one component carrier that report cycle in described multiple component carrier is greater than preset value is divided into one group of component carrier by described packet parameters unit; Or
Each component carrier that report cycle in described multiple component carrier is less than preset value is individually divided into one group of component carrier.
11. 1 kinds of terminals, is characterized in that, comprising:
Configuration module, for obtaining the instruction from services sites, and know at least one group of component carrier according to described instruction and correspond at least one sub-frame of uplink often organizing component carrier, described instruction comprises corresponding to described at least one I often organizing component carrier
cQI/PMI, described at least one I often organizing component carrier
cQI/PMIbe respectively used to instruction and correspond to described at least one sub-frame of uplink often organizing component carrier, described at least one group of component carrier is that described services sites carries out grouping to multiple component carrier and obtains, and to be described services sites be described at least one sub-frame of uplink often organizing component carrier that described component carrier of often organizing carries out distribution and obtains;
Reporting module, for describedly often organizing component carrier channel condition information corresponding to described at least one sub-frame of uplink often organizing component carrier reports respectively.
12. terminals according to claim 11, is characterized in that, described configuration module comprises:
Acquiring unit, for receiving the described instruction sent by radio resource control RRC signaling, described instruction comprises corresponding to described at least one I often organizing component carrier
cQI/PMI;
Allocation units, for finding corresponding to the described each I often organizing component carrier in preset table
cQI/PMIthe interval at place, and will with described each I
cQI/PMIeach subframe of the interval correspondence at place is defined as corresponding to the described sub-frame of uplink often organizing component carrier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010590952.5A CN102480338B (en) | 2010-11-29 | 2010-11-29 | Reporting source of channel state information indicating means, report method, services sites and terminal |
| PCT/CN2011/075035 WO2011137854A1 (en) | 2010-11-29 | 2011-05-31 | Indication method for repoting channel state information, method for repoting channel state information, service station point and terminal |
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| CN201010590952.5A CN102480338B (en) | 2010-11-29 | 2010-11-29 | Reporting source of channel state information indicating means, report method, services sites and terminal |
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| CN104426639A (en) * | 2013-08-27 | 2015-03-18 | 中兴通讯股份有限公司 | Sending method and device for uplink control information |
| US10122429B2 (en) * | 2015-01-16 | 2018-11-06 | Qualcomm Incorporated | Channel state information for enhanced carrier aggregation |
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| CN101610523A (en) * | 2008-06-20 | 2009-12-23 | 大唐移动通信设备有限公司 | The method and system of reporting channel information in a kind of tdd systems |
| CN101873206A (en) * | 2009-04-27 | 2010-10-27 | 大唐移动通信设备有限公司 | Method, device and system for feeding back channel information |
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| CN101827400B (en) * | 2009-03-04 | 2014-12-10 | 中兴通讯股份有限公司 | Method and system for transmitting channel quality indicator information |
| CN101908951B (en) * | 2010-08-16 | 2016-05-11 | 中兴通讯股份有限公司 | A kind of method for reporting of channel condition information and base station |
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| CN101610523A (en) * | 2008-06-20 | 2009-12-23 | 大唐移动通信设备有限公司 | The method and system of reporting channel information in a kind of tdd systems |
| CN101873206A (en) * | 2009-04-27 | 2010-10-27 | 大唐移动通信设备有限公司 | Method, device and system for feeding back channel information |
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