CN105827378A - Enhanced carrier aggregation transmission method and device - Google Patents
Enhanced carrier aggregation transmission method and device Download PDFInfo
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- CN105827378A CN105827378A CN201510012559.0A CN201510012559A CN105827378A CN 105827378 A CN105827378 A CN 105827378A CN 201510012559 A CN201510012559 A CN 201510012559A CN 105827378 A CN105827378 A CN 105827378A
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Abstract
The present invention provides an enhanced carrier aggregation transmission method and device. In an embodiment, in a step (1), UE receives a downlink signal, and the downlink signal triggers CSI; in a step (2), a first wireless signal and a second wireless signal are sent, wherein the first wireless signal comprises K groups of CSI reports, the second wireless signal comprises the identification information of the K groups of CSI reports, and the K is a positive integer. In an embodiment, the downlink signal is a DCI in an uplink format. According to the scheme disclosed by the invention, the limited PUSCH resource carrier is fully utilized to bear a CSI report which influences performance mostly, or the cost of PUSCH is saved in a same performance condition. In addition, according to the scheme, the large increase of a DCI load size is avoided, the bit number in an existing CSI request domain can be utilized to support up to 32 downlink carriers, and the compatibility is good.
Description
Technical field
The present invention relates to CA (CarrierAggregation, carrier aggregation) scheme, particularly relate to based on LTE (LongTermEvolution, Long Term Evolution) system enhancing CA in the scheme reported of CSI (ChannelStatusInformation, channel condition information).
Background technology
Traditional 3GPP (3rdGenerationPartnerProject, third generation partner program) the LTE system R (Release that formulates, version) in 10, CA is introduced into as one of key technology, its core concept is that subscriber equipment (UE-UserEquipment) can work over a number of carriers simultaneously, and CA can improve the peak rate of single UE.In LTECA, UE is configured a Pcell (PrimaryCell, main Serving cell), one or more Scell (SecondaryCell, auxiliary serving cell).For FDD (FrequencyDuplexDivision, FDD) LTE, a Serving cell includes at least one descending carrier in { descending carrier, a up-link carrier }.For TDD (TimeDuplexDivision, time division duplex) LTE, a Serving cell includes a carrier wave.In LTER10, support that the UE of CA is at best able to be configured 5 Serving cells, and UE can only send PUCCH information on Pcell.In 3GPPR10, CA supports that sending downlink signaling across carrier dispatching, i.e. base station at first carrier dispatches the transmission of wireless signals on the second carrier wave.Base station utilizes the target carrier that CIF (CarrierIndicatorField, the carrier wave instructions field) instruction in DCI (DownlinkControlInformation, Downlink Control Information) is to be dispatched.CIF is by 3 the bit instructions being positioned at DCI head.
Pass through a new research topic (RP-142286) the 66th plenary session (Plenary) of 3GPPRAN (RadioAccessNetwork, wireless access network), i.e. strengthen CA.Strengthening in CA problem, the maximum Serving cell number supported rises to 32.
Two kinds of CSI reporting mechanisms defined in LTE, i.e. A-CSI (AperiodicCSI, aperiodic CSI) report and the CSI report in cycle, the former is at PUSCH (PhysicalUplinkSharedCHannel, Physical Uplink Shared Channel) upper transmission, the latter is typically in the upper transmission of PUCCH (PhysicalUplinkControlCHannel, Physical Uplink Control Channel).A-CSI is by the DCI (DownlinkControlInformation of upstream format, Downlink Control Information) or RARG (RandomAccessResponseGrant, immediately access response scheduling) in CSI request (Request) territory triggered, and on the PUSCH scheduled in the DCI or described RARG of described upstream format transmission.Described CSI request territory includes 1～2 bit, when described CSI request territory is 2 bits, described CSI request territory can indicate that Serving cell corresponding for A-CSI or CSI process (describing in detail with reference to the form Table7.2.1-1A/B/C in TS36.213).
Summary of the invention
In traditional cellular network, base station (according to the dispatching requirement of oneself) controls Serving cell targeted for CSI or the CSI process that UE reports.Inventor is found by research, owing to current down channel quality is not known in base station, Serving cell targeted for A-CSI or CSI process that base station is triggered may not be optimum, and then (due to the report of A-CSI) produces certain ascending resource waste.Being that UE is configured with 32 descending carriers and 1 up-link carrier in view of strengthening the extreme case being likely to occur in CA, the ascending resource reported for CSI is the most valuable.Therefore, feeding back CSI the most efficiently is a problem needing to solve.In addition, inventor is found by research, and base station is difficult to accurately indicate the association service community (i.e. the maintenance Serving cell of the down channel that A-CSI is reflected) of A-CSI or CSI process (and CSI subframe) according to existing 1～2 CSI request territory.One bit number during idea is to increase CSI request territory intuitively is (in view of at most needing to indicate 32 descending carriers, required bit number may be higher), but the bit number increasing CSI request territory can bring the increase of DCI payload size, and then reduce PDCCH (PhysicalDownlinkControlChannel, Physical Downlink Control Channel) capacity of/ePDCCH (enhancedPDCCH, the PDCCH of enhancing) or robustness.
For the problems referred to above, inventor is found by research, UE compares that base station becomes apparent from the link-quality of current downlink channel and base station becomes apparent from current dispatching requirement, and therefore, a scheme optimized is that UE determines Serving cell targeted for A-CSI or CSI process under the guidance of base station.
The invention discloses a kind of method in UE, wherein, comprise the steps:
-step A. receives downstream signal, and described downstream signal triggers CSI
-step B. sends the first wireless signal and the second wireless signal.
Wherein, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
Above-mentioned option one and option two are can be self-existent, do not interdepend.
As an embodiment, described K is configured by high-level signaling.As an embodiment, described K is pre-determining.As an embodiment, described upstream format includes DCI format { 0,4} and the DCI format for scheduling of upstream transmissions of new definition.As an embodiment, described downstream format includes DCI format { 1,1A, 1B, 1C, 1D, 2,2A, 2B, 2C, 2D} and the DCI format for scheduling downstream transmission of new definition.
As an embodiment, CSI described in one group reports and includes one or more CSI information, described CSI information includes { RI (RankIndicator, order indicates), PTI (PrecodingTypeIndicator, precoding type indicates), PMI (PrecodingMatrixInformation, precoding matrix information), CQI (ChannelQualityIndicator, channel quality indicate) in one or more.As an embodiment, described K is less than the positive integer of 33.As an embodiment, described K is equal to described M.
As an embodiment, the identification information that described K group CSI is reported is to report K CSI process index one to one with described K group CSI.
In aforementioned aspect of the present invention, the second wireless signal makes the UE can be from main separation the CSI indicating it to report.Scheduling in view of wireless signal transmitting-receiving is completed by base station, and in order to meet the dispatching requirement of base station, the CSI that UE is reported should be the subset in the desired CSI in base station.Therefore:
Concrete, according to an aspect of the present invention, it is characterised in that described step B also comprises the steps:
-step B1. selects K CSI reference from M the CSI reference that described downstream signal triggers.
Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
The form of above-mentioned CSI reference is completely self-contained (not having dependence the most each other, can individually occur).In the present invention, if CSI reference is Serving cell, CSI reports corresponding CSI and refers to reference to (or the CSI for CSI reference reports): it is to carry out in the frequency domain resource of CSI reference that (channel and the interference) of the CSI information institute foundation in CSI report is measured.If CSI is with reference to being K1 CSI process, CSI reports corresponding CSI and refers to reference to (or the CSI for CSI reference reports): CSI report in the running time-frequency resource that indicates of K1 CSI process measuring respectively in CSI reference of (channel and the interference) of K1 group CSI information institute foundation on carry out.If CSI is with reference to being K2 (CSI process, CSI subframe) right, CSI reports corresponding CSI and refers to reference to (or the CSI for CSI reference reports): CSI report in (channel and the interference) of K2 group CSI information institute foundation measure respectively CSI with reference in K2 (CSI process, CSI subframe) running time-frequency resource to indicating on carry out.
As an embodiment, described K1 is 1.As an embodiment, described K2 is 1.
As an embodiment, described K1 is less than 6, and described K2 is less than 6.
In above-mentioned aspect, the selection algorithm of CSI reference is that UE realizes being correlated with.As an embodiment, described UE calculates, for described M CSI reference, the CSI information that M group updates respectively, the CSI information that the CSI information of described M group renewal is old with corresponding M group is compared, K group CSI information with the biggest gap for CQI corresponding described K CSI reference respectively, the old CSI information of described M group is the CSI report for described M CSI reference the last time transmission respectively.Advantage of this embodiment is that can make full use of limited PUSCH resource bearing reports the CSI that performance impact is maximum, or under the conditions of equal performance, save the expense of PUSCH.
Concrete, according to an aspect of the present invention, it is characterised in that described downstream signal is that described option one, the first wireless signal and the second wireless signal transmit on the PUSCH that described downstream signal is dispatched.
As an embodiment, the identification information that described K group CSI is reported is the index of described K CSI reference.
Concrete, according to aforementioned aspect of the present invention, it is characterised in that described downstream signal includes one below:
-.1 bit is used to indicate whether to trigger the CSI for M CSI reference
-.2 bit is used to indicate whether to trigger the CSI for M CSI reference.If triggered, described 2 bits are additionally operable to indicate M targeted CSI with reference to being the one in P kind possibility, and described P is 2 or 3.
Wherein, described M CSI is with reference to being configured by high-level signaling, and described K1 is equal to 1, and described K2 is equal to 1.
CSI request (Request) territory as an embodiment, in DCI or RARG of above-mentioned 1 bit or the traditional upstream format of 2 bit stealings.Need explanation, essential difference is in that of the present embodiment and existing LTE standard: be UE " order " of having to carry out indicated by CSI request territory in LTE standard, and above-mentioned 1 bit in the present invention or indicated by 2 bits be " to advise " (i.e. UE performs the most completely) for UE reference.
Above-mentioned aspect has reused the using method in the CSI request territory in the DCI of existing upstream format, it is to avoid use the instruction CSI reference of substantial amounts of bit " precisely ".I.e. base station has only to utilize M CSI reference of instruction of less bit " roughly ", follow-up therefrom selected by UE suitable CSI with reference to and send CSI and report.
Concrete, according to an aspect of the present invention, it is characterised in that described downstream signal is described option two, and described step A also comprises the steps:
-step A1. receives the first signaling
Wherein, the first wireless signal and the second wireless signal transmit on the PUSCH scheduled in the first signaling.
Above-mentioned aspect is that the DCI utilizing downstream format triggers A-CSI, and (especially when descending carrier number is much larger than 5) makes base station can trigger the CSI for desired CSI reference accurately.Yet with base station and do not know down channel quality, therefore the desired CSI in base station with reference to may and unreasonable, the scheme that the present invention announces makes UE that rational CSI can be selected to report with reference to sending corresponding CSI, saves CSI and reports the PUSCH resource taken.
As an embodiment, the DCI of described M downstream format dispatches M Serving cell respectively, and the identification information that described K group CSI is reported is the cell index of K Serving cell in described M Serving cell, and described K group CSI is reported and is respectively directed to described K Serving cell.As an embodiment, the identification information that described K group CSI is reported is L bit, and whether CSI corresponding to the Serving cell of L the activity that described L bit is respectively used to indicate described UE to be currently configured be by entrained by the first wireless signal.
Concrete, according to aforementioned aspect of the present invention, it is characterised in that the DCI of described downstream format includes one below:
-.1 bit is used to indicate whether to trigger the CSI for 1 CSI reference
-.2 bit is used to indicate whether to trigger the CSI for 1 CSI reference.If triggered, described 2 bits are additionally operable to indicate targeted 1 CSI with reference to being the one in P kind possibility, and described P is 2 or 3.
Wherein, described CSI is with reference to being configured by high-level signaling, and described K1 is equal to 1, and described K2 is equal to 1.
Above-mentioned 2 bits are more suitable for CoMP (CoordinateMultiplePoint, multi-point cooperative) scene or eIMTA (enhancedInterferenceManagementTrafficAdaptation, the interference management service adaptation strengthened) scene, i.e. one Serving cell there may be the CSI reference of multiple candidate.Above-mentioned 1 bit is more suitable for the scene outside traditional CoMP/eIMTA.
It is the territory (the most not reusing existing territory) being newly introduced in the DCI of existing downstream format as an embodiment, above-mentioned 1 bit or 2 bits.
Concrete, according to an aspect of the present invention, it is characterised in that the second wireless signal possesses at least one in following feature:
-feature one. the modulation system of the second wireless signal is identical with the modulation system of PUSCH data
-feature two. the code rate of the second wireless signal is determined jointly by { code rate of PUSCH data, relative displacement }, and described relative displacement is configured by high-level signaling
-feature three. the CQI/PMI cascade during the identification information of the described K group CSI report after coding and described K group CSI are reported forms extended bit group, described extended bit group was mapped on PUSCH according to the mapping mode of tradition CQI/PMI before DFT (DiscreteFourierTransform, discrete Fourier transform) operates.
Wherein, described PUSCH data are by UL-SCH (UplinkSharedChannel, the Uplink Shared Channel) data scheduled in the dispatch of the second wireless signal.
As an embodiment of described feature two, the code rate of the second wireless signal adds described relative displacement equal to the code rate of PUSCH data.
The essence of features described above three is that after CQI/PMI information MAP to described identification information, its advantage is as follows by the head of described identification information MAP to (scheduled in the dispatch of the second wireless signal) PUSCH:
-. it is distributed on all of SC-FDMA (SingleCarrierFrequencyDivisionMultiplexingAccess, single-carrier frequency division multiple access) symbol, it is to avoid be in and cause demodulation performance to decline away from the SC-FDMA symbol of DMRS
-. the position of fixing described identification information (the most not along with in the report of described K group CSI the payload size of CSI information or the payload size of PUSCH data and change).
The invention discloses a kind of method in base station, wherein, comprise the steps:
-step A. sends downstream signal, and described downstream signal triggers CSI
-step B. receives the first wireless signal and the second wireless signal.
Wherein, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
Concrete, according to an aspect of the present invention, it is characterised in that described step B also comprises the steps:
-step B1. determines K CSI reference according to the second wireless signal.
Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding, and described K CSI is with reference to the subset being M the CSI reference that described downstream signal triggers.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
Concrete, according to an aspect of the present invention, it is characterised in that described downstream signal is that described option one, the first wireless signal and the second wireless signal transmit on the PUSCH that described downstream signal is dispatched.
Concrete, according to an aspect of the present invention, it is characterised in that described downstream signal is described option two, and described step A also comprises the steps:
-step A1. sends the first signaling
Wherein, the first wireless signal and the second wireless signal transmit on the PUSCH scheduled in the first signaling.
Concrete, according to an aspect of the present invention, it is characterised in that described downstream signal includes one below:
-.1 bit is used to indicate whether to trigger the CSI for M CSI reference
-.2 bit is used to indicate whether to trigger the CSI for M CSI reference.If triggered, described 2 bits are additionally operable to indicate M targeted CSI with reference to being the one in P kind possibility, and described P is 2 or 3.
Wherein, described M CSI is with reference to being configured by high-level signaling, and described K1 is equal to 1, and described K2 is equal to 1.
Concrete, according to an aspect of the present invention, it is characterised in that the DCI of described downstream format includes one below:
-.1 bit is used to indicate whether to trigger the CSI for 1 CSI reference
-.2 bit is used to indicate whether to trigger the CSI for 1 CSI reference.If triggered, described 2 bits are additionally operable to indicate targeted 1 CSI with reference to being the one in P kind possibility, and described P is 2 or 3.
Wherein, described CSI is with reference to being configured by high-level signaling, and described K1 is equal to 1, and described K2 is equal to 1.
Concrete, according to an aspect of the present invention, it is characterised in that the second wireless signal possesses at least one in following feature:
-feature one. the modulation system of the second wireless signal is identical with the modulation system of PUSCH data
-feature two. the code rate of the second wireless signal is determined jointly by { code rate of PUSCH data, relative displacement }, and described relative displacement is configured by high-level signaling
-feature three. the CQI/PMI cascade during the identification information of the described K group CSI report after coding and described K group CSI are reported forms extended bit group, and described extended bit group was mapped on PUSCH according to the mapping mode of traditional CQI/PMI before DFT operates.
Wherein, described PUSCH data are by the UL-SCH data scheduled in the dispatch of the second wireless signal.
The invention discloses a kind of subscriber equipment, it is characterised in that this equipment includes:
First module: be used for receiving downstream signal, described downstream signal triggers CSI
Second module: for sending the first wireless signal and the second wireless signal.
Wherein, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
As an embodiment, the said equipment is characterised by, the second module is additionally operable to select K CSI reference from M the CSI reference that described downstream signal triggers.Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
As an embodiment, described downstream signal is that described option one, the first wireless signal and the second wireless signal transmit on the PUSCH that described downstream signal is dispatched.
The invention discloses a kind of base station equipment, it is characterised in that this equipment includes:
First module: be used for sending downstream signal, described downstream signal triggers CSI
Second module: for receiving the first wireless signal and the second wireless signal.
Wherein, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
As an embodiment, the said equipment is characterised by, the second module is additionally operable to determine K CSI reference according to the second wireless signal.Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding, and described K CSI is with reference to the subset being M the CSI reference that described downstream signal triggers.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
As an embodiment, described downstream signal is that described option one, the first wireless signal and the second wireless signal transmit on the PUSCH that described downstream signal is dispatched.
Comparing with existing technical scheme, method and apparatus disclosed by the invention makes full use of limited PUSCH resource bearing and reports the CSI that performance impact is maximum, or saves the expense of PUSCH under the conditions of equal performance.Additionally, the solution of the present invention avoids the substantial increase of DCI payload size, it is possible to utilize the bit number in existing CSI request territory to support up to 32 descending carriers, possess good compatibility.
Accompanying drawing explanation
The detailed description that non-limiting example is made made with reference to the following drawings by reading, the other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows that uplink scheduling signaling according to an embodiment of the invention triggers the flow chart of CSI；
Fig. 2 shows the schematic diagram utilizing 2 bits to trigger CSI according to an embodiment of the invention
Fig. 3 shows that descending scheduling signaling according to an embodiment of the invention triggers the flow chart of CSI；
Fig. 4 shows the mapping schematic diagram of identification information according to an embodiment of the invention and PMI/CQI
Fig. 5 shows the structured flowchart of the processing means in UE according to an embodiment of the invention；
Fig. 6 shows the structured flowchart of the processing means in base station according to an embodiment of the invention；
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail, it should be noted that in the case of not conflicting, the feature in embodiments herein and embodiment can arbitrarily be mutually combined.
Embodiment 1
Embodiment 1 illustrates uplink scheduling signaling and triggers the flow chart of CSI, as shown in Figure 1.In accompanying drawing 1, base station N1 maintains the Serving cell of UEU2.
For base station N1, sending uplink scheduling signaling in step s 11, described uplink scheduling signaling triggers the CSI for M CSI reference.Receive the first wireless signal and the second wireless signal in step s 12.K CSI reference is determined in step s 13 according to the second wireless signal.
For UEU2, receive described uplink scheduling signaling in the step s 21.From described M CSI reference, K CSI reference is selected in step S22.The first wireless signal and the second wireless signal is sent in step S23.
In embodiment 1, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described uplink scheduling signaling is the DCI or 1 RARG of 1 upstream format.Described K group CSI is reported and described K CSI is with reference to one_to_one corresponding, and described K CSI is with reference to the subset being M the CSI reference that described downstream signal triggers.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.M is greater than the positive integer equal to K.
As the sub-embodiment 1 of embodiment 1, described uplink scheduling signaling includes that 1 bit is used to indicate whether to trigger the CSI for M CSI reference.
As the sub-embodiment 2 of embodiment 1, described uplink scheduling signaling includes that 2 bits are used to indicate whether to trigger the CSI for M CSI reference.If triggered, described 2 bits are additionally operable to indicate M targeted CSI with reference to being the one in 3 kinds of possibilities.Accompanying drawing 2 illustrates the description (may correspondence first gather respectively for described 3 kinds, the second set, the 3rd set) of described 2 bits.
As the sub-embodiment 3 of embodiment 1, the second wireless signal possesses at least one in following feature:
-feature one. the modulation system of the second wireless signal is identical with the modulation system of PUSCH data
-feature two. the code rate of the second wireless signal is determined jointly by { code rate of PUSCH data, relative displacement }, and described relative displacement is configured by high-level signaling
-feature three. the CQI/PMI cascade during the identification information of the described K group CSI report after coding and described K group CSI are reported forms extended bit group, and described extended bit group was mapped on PUSCH according to the mapping mode of traditional CQI/PMI before DFT operates.
Wherein, described PUSCH data are by the UL-SCH data scheduled in described uplink scheduling signaling.
As the sub-embodiment 4 of embodiment 1, described K is by RRC (RadioResourceControl, wireless heterogeneous networks) signal deployment.
As the sub-embodiment 5 of embodiment 1, described K group CSI is reported and is shared identical report pattern, and described report pattern is CSIR eportingMode{2-0 in LTE, the one in 3-0,3-1,1-2,2-2,3-2}.
Embodiment 2
Embodiment 2 illustrates descending scheduling signaling and triggers the flow chart of CSI, as shown in Figure 3.In accompanying drawing 3, base station N3 maintains the Serving cell of UEU4.
For base station N3, sending the DCI of M downstream format in step S31, the DCI of described M downstream format triggers CSI.Send the first signaling in step s 32.The first wireless signal and the second wireless signal is received in step S33.K CSI reference is determined according to the second wireless signal in step S34.
For UEU4, step S41 receives the DCI of described M downstream format.The first signaling is received in step S42.From M the CSI reference that described downstream signal triggers, K CSI reference is selected in step S43.The first wireless signal and the second wireless signal is sent in step S44.
In embodiment 2, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.First wireless signal and the second wireless signal transmit on the PUSCH scheduled in the first signaling.M is greater than the positive integer equal to K.Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding, and described K CSI is with reference to the subset being M the CSI reference that described downstream signal triggers.First signaling is the DCI of upstream format.
As the sub-embodiment 1 of embodiment 2, described CSI is with reference to the Serving cell scheduled in DCI being corresponding downstream format.
As the sub-embodiment 2 of embodiment 2, described CSI is with reference to being 1 CSI process, and defined in described CSI process, channel measurement resource and interferometry resource are all located at the Serving cell scheduled in DCI of corresponding downstream format.
As the sub-embodiment 3 of embodiment 2, described CSI reference is that 1 (CSI process, CSI subframe) is right.Defined in described CSI process, channel measurement resource and interferometry resource are all located at the Serving cell scheduled in DCI of corresponding downstream format.
Embodiment 3
Embodiment 3 illustrates the mapping schematic diagram of the described identification information in the present invention and the PMI/CQI in the first wireless signal, as shown in Figure 4.In accompanying drawing 4, DMRS (the DemodulationReferenceSignal of reticule grid mark PUSCH, demodulated reference signal), the described identification information that described K group CSI in the oblique line grid mark present invention is reported, vertical line grid identifies the PMI/CQI (i.e. { PMI during heretofore described K group CSI is reported, one or two kinds of in CQI}), the described PUSCH data in blank boxes mark invention.
In embodiment 3, CQI/PMI cascade during the described identification information of the described K group CSI report after coding and described K group CSI are reported forms extended bit group, described extended bit group was mapped on PUSCH according to the mapping mode of tradition CQI/PMI before DFT operates and (first maps the described identification information head to PUSCH of described K group CSI report, then map CQI/PMI, finally map PUSCH data).
As the sub-embodiment 1 of embodiment 3, described K group CSI also includes in reporting that RI, described RI map (be i.e. mapped between symbol and the DMRS symbol shared by the both sides of DMRS symbol and RI and be also spaced 1 symbol) according to traditional LTE mode.
Embodiment 4
Embodiment 4 illustrates the structured flowchart of the processing means in UE, as shown in Figure 5.In accompanying drawing 5, UE processing means 200 is made up of receiver module 201 and processing module 202.
Receiver module 201 is used for receiving downstream signal, and described downstream signal triggers CSI.Processing module 202 selects K CSI reference for M the CSI reference triggered from described downstream signal, and sends the first wireless signal and the second wireless signal.
In embodiment 4, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
Described K group CSI is reported and described K CSI is with reference to one_to_one corresponding.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
As the sub-embodiment 1 of embodiment 4, receiver module 201 is additionally operable to receive the first signaling.Wherein, the first wireless signal and the second wireless signal transmit on the PUSCH scheduled in the first signaling, and the first signaling is the DCI of upstream format.
As the sub-embodiment 2 of embodiment 4, the modulation system of the second wireless signal is identical with the modulation system of PUSCH data.The code rate of the second wireless signal is determined jointly by { code rate of PUSCH data, relative displacement }, and described relative displacement is configured by high-level signaling.Wherein, described PUSCH data are by the UL-SCH data scheduled in the dispatch of the second wireless signal.
Embodiment 5
Embodiment 5 illustrates the structured flowchart of the processing means in base station, as shown in Figure 6.In accompanying drawing 6, base station processing means 300 is made up of sending module 301 and processing module 302.
Sending module 301 is used for sending downstream signal, and described downstream signal triggers CSI.Processing module 302 is for receiving the first wireless signal and the second wireless signal, and determines K CSI reference according to the second wireless signal.
In embodiment 5, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
Described K group CSI is reported and described K CSI is with reference to one_to_one corresponding, and described K CSI is with reference to the subset being M the CSI reference that described downstream signal triggers.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
As the sub-embodiment 1 of embodiment 5, receiver module 201 is additionally operable to send the first signaling.Wherein, the first wireless signal and the second wireless signal transmit on the PUSCH scheduled in the first signaling, and the first signaling is the DCI of upstream format.
Sub-embodiment 2 as embodiment 5, CQI/PMI cascade during the identification information of the described K group CSI report after coding and described K group CSI are reported forms extended bit group, and described extended bit group was mapped on PUSCH according to the mapping mode of traditional CQI/PMI before DFT operates.
Sub-embodiment 3 as embodiment 5, the identification information that described K group CSI is reported is L bit, described L bit is respectively used to L the movable Serving cell indicating described UE to be currently configured, having K bit in described L bit was 1 (representing the first wireless signal to include for the CSI of respective service community to report), and remaining L-K bit was 0 (representing the first wireless signal not include for the CSI of respective service community to report).
One of ordinary skill in the art will appreciate that all or part of step in said method can instruct related hardware by program and complete, described program can be stored in computer-readable recording medium, such as read only memory, hard disk or CD etc..Optionally, all or part of step of above-described embodiment can also use one or more integrated circuit to realize.Accordingly, each modular unit in above-described embodiment, example, in hardware can be used to realize, it is also possible to being realized by the form of software function module, the application is not limited to the combination of the software and hardware of any particular form.UE in the present invention includes but not limited to the Wireless Telecom Equipments such as mobile phone, panel computer, notebook, card of surfing Internet.Base station in the present invention includes but not limited to the Wireless Telecom Equipments such as macrocell base stations, microcell base station, Home eNodeB, relay base station.
The above, only presently preferred embodiments of the present invention, it is not intended to limit protection scope of the present invention.All within the spirit and principles in the present invention, any amendment made, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (18)
1. the method in UE, wherein, comprises the steps:
-step A. receives downstream signal, and described downstream signal triggers CSI
-step B. sends the first wireless signal and the second wireless signal.
Wherein, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
Method the most according to claim 1, it is characterised in that described step B also comprises the steps:
-step B1. selects K CSI reference from M the CSI reference that described downstream signal triggers.
Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
3. according to the method described in claim 1-2, it is characterised in that described downstream signal is that described option one, the first wireless signal and the second wireless signal transmit on the PUSCH that described downstream signal is dispatched.
4. according to the method described in claim 1-2, it is characterised in that described downstream signal is described option two, and described step A also comprises the steps:
-step A1. receives the first signaling
Wherein, the first wireless signal and the second wireless signal transmit on the PUSCH scheduled in the first signaling.
Method the most according to claim 3, it is characterised in that described downstream signal includes one below:
-.1 bit is used to indicate whether to trigger the CSI for M CSI reference
-.2 bit is used to indicate whether to trigger the CSI for M CSI reference.If triggered, described 2 bits are additionally operable to indicate M targeted CSI with reference to being the one in P kind possibility, and described P is 2 or 3.
Wherein, described M CSI is with reference to being configured by high-level signaling, and described K1 is equal to 1, and described K2 is equal to 1.
Method the most according to claim 4, it is characterised in that the DCI of described downstream format includes one below:
-.1 bit is used to indicate whether to trigger the CSI for 1 CSI reference
-.2 bit is used to indicate whether to trigger the CSI for 1 CSI reference.If triggered, described 2 bits are additionally operable to indicate targeted 1 CSI with reference to being the one in P kind possibility, and described P is 2 or 3.
Wherein, described CSI is with reference to being configured by high-level signaling, and described K1 is equal to 1, and described K2 is equal to 1.
7. according to the method described in claim 1-6, it is characterised in that the second wireless signal possesses at least one in following feature:
-feature one. the modulation system of the second wireless signal is identical with the modulation system of PUSCH data
-feature two. the code rate of the second wireless signal is determined jointly by { code rate of PUSCH data, relative displacement }, and described relative displacement is configured by high-level signaling
-feature three. the CQI/PMI cascade during the identification information of the described K group CSI report after coding and described K group CSI are reported forms extended bit group, and described extended bit group was mapped on PUSCH according to the mapping mode of traditional CQI/PMI before DFT operates.
Wherein, described PUSCH data are by the UL-SCH data scheduled in the dispatch of the second wireless signal.
8. the method in base station, wherein, comprises the steps:
-step A. sends downstream signal, and described downstream signal triggers CSI
-step B. receives the first wireless signal and the second wireless signal.
Wherein, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
Method the most according to claim 8, it is characterised in that described step B also comprises the steps:
-step B1. determines K CSI reference according to the second wireless signal.
Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding, and described K CSI is with reference to the subset being M the CSI reference that described downstream signal triggers.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
Method described in-9 the most according to Claim 8, it is characterised in that described downstream signal is that described option one, the first wireless signal and the second wireless signal transmit on the PUSCH that described downstream signal is dispatched.
11. methods described in-9 according to Claim 8, it is characterised in that described downstream signal is described option two, and described step A also comprises the steps:
-step A1. sends the first signaling
Wherein, the first wireless signal and the second wireless signal transmit on the PUSCH scheduled in the first signaling.
12. methods according to claim 10, it is characterised in that described downstream signal includes one below:
-.1 bit is used to indicate whether to trigger the CSI for M CSI reference
-.2 bit is used to indicate whether to trigger the CSI for M CSI reference.If triggered, described 2 bits are additionally operable to indicate M targeted CSI with reference to being the one in P kind possibility, and described P is 2 or 3.
Wherein, described M CSI is with reference to being configured by high-level signaling, and described K1 is equal to 1, and described K2 is equal to 1.
13. methods according to claim 11, it is characterised in that the DCI of described downstream format includes one below:
-.1 bit is used to indicate whether to trigger the CSI for 1 CSI reference
-.2 bit is used to indicate whether to trigger the CSI for 1 CSI reference.If triggered, described 2 bits are additionally operable to indicate targeted 1 CSI with reference to being the one in P kind possibility, and described P is 2 or 3.
Wherein, described CSI is with reference to being configured by high-level signaling, and described K1 is equal to 1, and described K2 is equal to 1.
14. methods described in-13 according to Claim 8, it is characterised in that the second wireless signal possesses at least one in following feature:
-feature one. the modulation system of the second wireless signal is identical with the modulation system of PUSCH data
-feature two. the code rate of the second wireless signal is determined jointly by { code rate of PUSCH data, relative displacement }, and described relative displacement is configured by high-level signaling
-feature three. the CQI/PMI cascade during the identification information of the described K group CSI report after coding and described K group CSI are reported forms extended bit group, and described extended bit group was mapped on PUSCH according to the mapping mode of traditional CQI/PMI before DFT operates.
Wherein, described PUSCH data are by the UL-SCH data scheduled in the dispatch of the second wireless signal.
15. 1 kinds of subscriber equipmenies, it is characterised in that this equipment includes:
First module: be used for receiving downstream signal, described downstream signal triggers CSI
Second module: for sending the first wireless signal and the second wireless signal.
Wherein, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
16. equipment according to claim 15, it is characterised in that the second module is additionally operable to select K CSI reference from M the CSI reference that described downstream signal triggers.Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
17. 1 kinds of base station equipments, it is characterised in that this equipment includes:
First module: be used for sending downstream signal, described downstream signal triggers CSI
Second module: for receiving the first wireless signal and the second wireless signal.
Wherein, the first wireless signal includes that K group CSI is reported, and the second wireless signal includes the identification information that described K group CSI is reported, and described K is positive integer.Described downstream signal is one below:
The DCI or 1 RARG of .1 upstream format of-option one
The DCI, M of .M downstream format of-option two are greater than the positive integer equal to K.
18. equipment according to claim 17, it is characterised in that the second module is additionally operable to determine K CSI reference according to the second wireless signal.Wherein, described K group CSI is reported and described K CSI is with reference to one_to_one corresponding, and described K CSI is with reference to the subset being M the CSI reference that described downstream signal triggers.Described CSI with reference to being 1 Serving cell, K1 CSI process, K2 individual (CSI process, CSI subframe) in one, described K1 is positive integer, and described K2 is positive integer.
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