CN101958772B - For across the Physical Downlink Control Channel sending method of carrier dispatching and base station - Google Patents

For across the Physical Downlink Control Channel sending method of carrier dispatching and base station Download PDF

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Publication number
CN101958772B
CN101958772B CN201010502533.1A CN201010502533A CN101958772B CN 101958772 B CN101958772 B CN 101958772B CN 201010502533 A CN201010502533 A CN 201010502533A CN 101958772 B CN101958772 B CN 101958772B
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component carrier
pdcch
aperiodic
base station
srs
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CN101958772A (en
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朱鹏
左志松
喻斌
戴博
吴欣
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2011/076596 priority patent/WO2012041095A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of for across the PDCCH sending method of carrier dispatching and base station, wherein, this sending method comprises: in FDD system, base station is configured to the enforcement of UE across carrier dispatching component carrier by configuring to the downlink component carrier of UE, wherein, the upstream components carrier wave that this downlink component carrier is corresponding has configured to this UE; Base station sends PDCCH to this UE on this downlink component carrier, and when this PDCCH triggers CSI report aperiodic, indicate this UE to send on this upstream components carrier wave PUSCH that this PDCCH dispatches is to base station; Or base station sends PDCCH to this UE on this downlink component carrier, when this PDCCH triggers SRS aperiodic, indicate this UE to send on this upstream components carrier wave PDCCH triggers aperiodic, SRS was to base station.

Description

For across the Physical Downlink Control Channel sending method of carrier dispatching and base station
Technical field
The present invention relates to the communications field, in particular to a kind of for across Physical Downlink Control Channel (PhysicalDownlinkControlChannel, the PDCCH) sending method of carrier dispatching and base station.
Background technology
At third generation partner program long evolving system (The3rdGenerationPartnershipProjectLongTermEvolution, 3GPPLTE), subscriber equipment (UserEquipment, UE) channel condition information (ChannelStateInformation of down channel is obtained according to downlink reference signal (referencesignal), CSI), then, by obtain CSI feedback to base station (eNodeB, eNB).The CSI that base station is fed back according to UE, determines the modulation coding mode of the data sending to UE, physical resource position and transmission mode.In LTE system, CSI comprises three kinds of forms: channel quality instruction (ChannelsQualityIndication, CQI), pre-coding matrix instruction (Pre-codingMatrixIndicator, PMI), order instruction (RankIndicator, RI).
In LTE system, the CSI feedback of UE to down channel has periodic feedback and non-periodic feedback two kinds of modes, is called periodic channel status information reporting (periodicCSIreporting) and aperiodic channel status information reports (aperiodicCSIreporting).Wherein, so-called cycle CSI report refers to that UE configures according to base station, feeds back CSI periodically; What is called CSI report aperiodic refers to that a CSI is fed back by triggering signaling triggering UE in base station.For cycle CSI report, in general, if UE does not send Physical Uplink Shared Channel (PhysicalUplinkSharedChannel in certain subframe (subframe), PUSCH), the CSI upper transmission of row control channel (PhysicalUplinkControl, PUCCH) physically; If UE sends PUSCH, CSI and is carried on transmission on PUSCH.For CSI report aperiodic, then only transmit on PUSCH.
In LTE system, base station sends PUSCH by certain UE of uplink scheduling authorization (Uplinkgrant, ULgrant) signaling scheduling.Uplink scheduling authorization signaling can send to dispatched UE by the PDCCH with Downlink Control Information (DownlinkControlInformation, DCI) form 0 (format0).There is 1 bit to carry out CSI report aperiodic for triggering UE in DCIformat0, being called channel quality instruction request (CQIrequest).If CQI request is set to 1, then triggers UE and feed back aperiodic channel status information reports.That is, if UE detects the PDCCH with DCIformat0 form belonging to it, then PUSCH is sent according to the ULgrant wherein comprised.If UE detects that 1 bit CQIrequest in DCIformat0 is set to ' 1 ', then send CSI report aperiodic in the PUSCH dispatched at this DCIformat0.
Senior Long Term Evolution (LTE-Advanced, LTE-A) system is the evolution system of future generation of LTE system, it adopts carrier aggregation (CarrierAggregation, CA) technological expansion transmission bandwidth, to support larger hardware circuit solution.Fig. 1 is the schematic diagram of the carrier aggregation of lte-a system according to correlation technique.As shown in Figure 1, the carrier wave of each polymerization is called one " component carrier " (ComponentCarrier, CC), is also called a community (Cell).Multiple component carrier can be positioned at same frequency range (frequencyband), also can be positioned at different frequency range.
Support, across carrier dispatching (cross-carrierscheduling), on a component carrier of specifying, namely to send the schedule information of other component carrier in lte-a system.To time division duplex (TimeDivisionDuplex, TDD) system, a component carrier of specifying sends the up-downgoing schedule information of other component carriers; To Frequency Division Duplexing (FDD) (FrequencyDivisionDuplex, FDD) system, specify at one schedule information downlink component carrier sending other downlink component carriers and upstream components carrier wave corresponding to other downlink component carriers.This component carrier of specifying is called the component carrier implemented across carrier dispatching, is also called Physical Downlink Control Channel component carrier (PDCCHComponentCarrier, PDCCHCC).
Above-mentioned schedule information is carried in the PDCCH with specific descending control information format (DCIFormat) and sends to dispatched UE, and, for identifying the component carrier dispatched, carrier wave instructions field (CIF, CarrierIndicatorField) is introduced in DCIFormat.Current, lte-a system is polymerized at most 5 component carriers, and therefore CIF is 3bits.Concerning some UE, whether enter and it is carried out across carrier dispatching, which component carrier is implemented across carrier dispatching, and implement the component carrier that can dispatch across the PDCCHCC of carrier dispatching, configure by high-level signaling.
About the signalling value in CIF, prior art mainly proposes two schemes, one is CIF-value (CIFvalue), and another kind is component carrier index (ComponentCarrierindex, CCindex) or claims cell index (Cellindex).Signalling value in these two kinds of modes in CIF all can be configured by high level.
Prior art proposes, and in lte-a system, when being configured to across carrier dispatching, base station use is for dispatching PDCCH transmission CSI report trigger command aperiodic of PUSCH to object UE.The described PDCCH for dispatching PUSCH has specific descending control information format, comprises the PDCCHDCIformat for dispatching PUSCH newly-increased in DCIformat0 and LTE-A, such as DCIformat0 ', DCIformat4 etc.When in this PDCCH during CQIrequest=1, trigger UE and feed back CSI report aperiodic.During across carrier dispatching, in this PDCCH, comprise CIF information.Base station by PDCCH with CIF information instruction trigger CSI report aperiodic of which or which group component carrier wave.
That is, during across carrier dispatching, for dispatching in the PDCCH of PUSCH, if CQIrequest=0, then CIF information is used to indicate scheduling UE and sends PUSCH on which component carrier; And according to prior art, as CQIrequest=1, CIF information is used to indicate and triggers CSI report aperiodic that UE feeds back which or which group component carrier wave.The problem brought thus is: as CQIrequest=1, and UE cannot know that this PDCCH dispatches UE and send PUSCH on which component carrier.
For solving this problem, prior art proposes: to TDD system, this PDCCH sends to UE on which component carrier, then dispatch UE and send PUSCH on which component carrier; To FDD system, this PDCCH is at which downlink component carrier (DownlinkComponentCarrier, DLCC) UE is sent on, then dispatch UE and send PUSCH on the upstream components carrier wave (UplinkComponentCarrier, ULCC) that this downlink component carrier is corresponding.
In LTE-AFDD system, each downlink component carrier has a upstream components carrier wave corresponding with it.The corresponding relation of this up-downgoing component carrier presets, and informs UE by base station by Equations of The Second Kind system information block (SystemInformationBlockType2, SIB-2).Thus, in LTE-AFDD system, the corresponding relation of up-downgoing component carrier is also called SIB-2 association or SIB-2 correspondence (SIB-2linkage), a pair up-downgoing component carrier SIB-2 association each other (corresponding) component carrier (SIB-2linkedCC).
In FDD system, base station can be UE configuration (configure) or activates the up-downgoing component carrier of (activate) different number, as shown in Figure 2.Wherein, at least comprise a pair specific (UE-specific) principal component carrier wave (PrimaryComponentCarrier, PCC) of UE, comprise descending PCC and up PCC corresponding with it, be also called main plot (PrimaryCell, Pcell).The principal component carrier wave of different UEs may be different.In addition, except a pair principal component carrier wave, base station also can be UE configuration or activates one or more descending from component carrier (SecondaryComponentCarrier), and it is one or more up from component carrier, be also called from community (SecondaryCell, Scell).
As shown in Figure 2, base station can be some UE (as being UE0) configure or have activated certain downlink component carrier (as descending from component carrier #2), but do not give this UE configure this DLCC (as descending from component carrier #2) upstream components carrier wave corresponding to SIB-2 (as up from component carrier #2).During across carrier dispatching, if this downlink component carrier is configured to the PDCCHCC of UE, like this, when in the PDCCH that this downlink component carrier sends during CQIrequest=1, CIF information is only used to indicate CSI report aperiodic of triggering which or which group component carrier wave, and the PUSCH that this PDCCH dispatches sends on which upstream components carrier wave, now UE still cannot be known.
In addition, measuring reference signals (SoundingReferenceSignal, SRS) is the upward signal being used for measuring up channel CSI between a kind of terminal equipment and base station.In LTE system, the parameters such as the bandwidth that UE indicates according to eNB, frequency domain position, sequence cyclic shift, cycle and sub-frame offset, periodically send SRS on last data symbol sending subframe (subframe).ENB judges the CSI of UE up link according to the SRS received, and carries out the operations such as frequency domain selection scheduling and close-loop power control according to the CSI obtained.
At present in lte-a system, except the SRS retaining the original cycle transmission of LTE (is called period measurement reference signal, periodicSRS), in order to improve the utilance of SRS resource and improve the flexibility of scheduling of resource, UE can also be triggered by PDCCH and send SRS (being called measuring reference signals aperiodic, aperiodicSRS) aperiodic.Like this, across under carrier dispatching, base station cannot indicate UE on which component carrier, send triggered SRS aperiodic, and equally, which component carrier UE also cannot be informed on and send triggered SRS aperiodic.
Summary of the invention
Main purpose of the present invention is to provide a kind of for across the PDCCH sending method of carrier dispatching and base station, at least to solve in above-mentioned lte-a system, when comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1, CIF is used to indicate UE when feeding back CSI report aperiodic of the component carrier of specifying, the problem that this PDCCH cannot indicate its PUSCH dispatched to send on which component carrier and when comprise CIF PDCCH trigger SRS aperiodic time, one of problem that the aperiodic that this PDCCH cannot indicate it to trigger, SRS sent on which component carrier.
According to an aspect of the present invention, provide a kind of for the PDCCH sending method across carrier dispatching, comprise: in FDD system, base station is configured to the enforcement of this UE across carrier dispatching component carrier by configuring to the downlink component carrier of UE, wherein, the upstream components carrier wave that this downlink component carrier is corresponding has configured to this UE; Base station sends PDCCH to this UE on this downlink component carrier, and when this PDCCH triggers CSI report aperiodic, indicate this UE to send on this upstream components carrier wave PUSCH that this PDCCH dispatches is to base station; Or base station sends PDCCH to this UE on this downlink component carrier, when this PDCCH triggers SRS aperiodic, indicate this UE to send on this upstream components carrier wave this PDCCH triggers aperiodic, SRS was to base station.
According to another aspect of the present invention, provide a kind of for the PDCCH sending method across carrier dispatching, comprising: base station is configured to the enforcement of this UE across carrier dispatching component carrier by configuring to the component carrier of UE; Base station sends PDCCH to this UE on this component carrier, when this PDCCH triggers CSI report aperiodic, the component carrier indicating this UE can dispatch at this PDCCH sends PUSCH that this PDCCH dispatches to base station; Or base station sends PDCCH to this UE on this component carrier, when this PDCCH triggers SRS aperiodic, the component carrier indicating this UE can dispatch at this PDCCH sends this PDCCH triggers aperiodic SRS to base station.
According to a further aspect of the invention, provide a kind of for the PDCCH sending method across carrier dispatching, comprise: base station sends PDCCH to UE, wherein, CIF is carried in this PDCCH, when this PDCCH triggers SRS aperiodic, this CIF is used to indicate UE and sends the component carrier that aperiodic, SRS used to base station that this PDCCH triggers.
According to another aspect of the invention, provide a kind of for the base station across carrier dispatching, comprise: configuration module, when being FDD system for the system at place, base station, the enforcement of this UE is configured to across carrier dispatching component carrier to the downlink component carrier of UE by configuring, wherein, the upstream components carrier wave that this downlink component carrier is corresponding has configured to this UE; Sending module, for sending PDCCH to this UE on this downlink component carrier, when this PDCCH triggers CSI report aperiodic, indicate this UE to send on this upstream components carrier wave PUSCH that this PDCCH dispatches is to base station, or when this PDCCH triggers SRS aperiodic, indicate this UE to send on this upstream components carrier wave this PDCCH triggers aperiodic, SRS was to base station.
By the present invention, in LTE-AFDD system, base station only will can configure the PDCCHCC being configured to this UE to the downlink component carrier in certain a pair up-downgoing component carrier of certain UE.When sending PDCCH on this downlink component carrier, and this PDCCH triggers this UE when feeding back CSI report aperiodic, the PUSCH indicating this UE to send this PDCCH on the upstream components carrier wave that this downlink component carrier is corresponding to dispatch, when sending PDCCH on this downlink component carrier, and this PDCCH trigger this UE send SRS aperiodic time, indicate this UE to send on the upstream components carrier wave that this downlink component carrier is corresponding this PDCCH triggers aperiodic, SRS was to base station, therefore, be no matter for PUSCH or aperiodic SRS, this PDCCH all can indicate UE to send on the upstream components carrier wave sending this downlink component carrier, because the inevitable also configuration of this upstream components carrier wave gives this UE, thus can solve in above-mentioned lte-a system, when comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1, CIF is used to indicate UE when feeding back CSI report aperiodic of the component carrier of specifying, the problem that this PDCCH cannot indicate its PUSCH dispatched to send on which component carrier and when comprise CIF PDCCH trigger SRS aperiodic time, one of problem that the aperiodic that this PDCCH cannot indicate it to trigger, SRS sent on which component carrier.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the lte-a system carrier aggregation according to correlation technique;
Fig. 2 is the schematic diagram of the carrier aggregation of a LTE-AFDD system UE according to correlation technique;
Fig. 3 is the flow chart for the physical downlink control channel PDCCH sending method across carrier dispatching according to an embodiment of the present invention;
Fig. 4 is the flow chart for the physical downlink control channel PDCCH sending method across carrier dispatching according to the another kind of embodiment of the present invention;
Fig. 5 is the flow chart for the physical downlink control channel PDCCH sending method across carrier dispatching according to another embodiment of the present invention;
Fig. 6 is the schematic diagram for the base station across carrier dispatching according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
In order to solve the above-mentioned two problems that exists in the lte-a system of prior art one of at least, following examples of the present invention provide a kind of newly for Physical Downlink Control Channel (PDCCH) sending method across carrier dispatching, mainly comprise following several implementation method.
Method one
Fig. 3 is the flow chart for the PDCCH sending method across carrier dispatching according to an embodiment of the present invention, comprises the following steps:
Step S302, in FDD system, base station is configured to the enforcement of this UE across carrier dispatching component carrier (i.e. FDCCHCC) by configuring to some downlink component carriers of some UE, wherein, this downlink component carrier is corresponding upstream components carrier wave (being specifically as follows (or association) upstream components carrier wave that the SIB-2 of this downlink component carrier is corresponding) has configured to this UE;
That is, in LTE-AFDD system, certain downlink component for certain UE carries, if the upstream components carrier wave that its SIB-2 is corresponding does not configure to this UE, then this downlink component carrier can not be configured to the PDCCHCC of this UE, that is, the PDCCH that base station sends to this UE on this downlink component carrier can not receive PDSCH across this UE of carrier dispatching or send PUSCH on other upstream components carrier wave on other downlink component carrier, or base station does not send PDCCH to this UE on this downlink component carrier.
That is, in LTE-AFDD system, certain downlink component carries the PDCCHCC that will be configured to certain UE, and the upstream components carrier wave that its SIB-2 is corresponding must configure to this UE.
Step S304, base station sends PDCCH to this UE on this downlink component carrier, and this PDCCH triggers this UE feedback CSI report aperiodic, then indicate this UE to send on this upstream components carrier wave PUSCH that this PDCCH dispatches to base station (now obviously this PDCCH for dispatching PUSCH and carrying carrier wave instructions field CIF in this PDCCH, and this CIF is used to indicate CSI report aperiodic that this UE feeds back the component carrier indicated by this CIF);
Or, in step s 304, base station sends PDCCH to this UE on this downlink component carrier, and this PDCCH triggers this UE transmission SRS aperiodic, then indicate this UE to send on this upstream components carrier wave this PDCCH triggers aperiodic, SRS (now obviously carried carrier wave instructions field CIF in this PDCCH to base station, if this PDCCH is for dispatching PUSCH, then this CIF is used to indicate this UE and sends this PUSCH on which upstream components carrier wave; If this PDCCH is for dispatching PDSCH, then this CIF is used to indicate this UE and receives this PDSCH on which downlink component carrier).
The present embodiment is in LTE-AFDD system, and base station only will can configure the PDCCHCC being configured to this UE to the downlink component carrier in certain a pair up-downgoing component carrier of certain UE.When sending PDCCH on this downlink component carrier, and this PDCCH triggers this UE when feeding back CSI report aperiodic, the PUSCH indicating this UE to send this PDCCH on the upstream components carrier wave that this downlink component carrier is corresponding to dispatch, when sending PDCCH on this downlink component carrier, and this PDCCH trigger this UE send SRS aperiodic time, indicate this UE to send on the upstream components carrier wave that this downlink component carrier is corresponding this PDCCH triggers aperiodic, SRS was to base station, therefore, be no matter for PUSCH or aperiodic SRS, this PDCCH all can indicate UE to send on the upstream components carrier wave sending this downlink component carrier, because the inevitable also configuration of this upstream components carrier wave gives this UE, thus can solve in above-mentioned lte-a system, when comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1, CIF is used to indicate UE when feeding back CSI report aperiodic of the component carrier of specifying, the problem that this PDCCH cannot indicate its PUSCH dispatched to send on which component carrier and when comprise CIF PDCCH trigger SRS aperiodic time, one of problem that the aperiodic that this PDCCH cannot indicate it to trigger, SRS sent on which component carrier.
(1) to PUSCH:
In LTE-AFDD system, when comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1 (representing that this PDCCH triggers CSI report aperiodic), the PUSCH that this PDCCH dispatches send sending on the upstream components carrier wave corresponding to the downlink component carrier of this PDCCH.Wherein, the upstream components carrier wave corresponding to described downlink component carrier is the upstream components carrier wave that described downlink component carrier SIB-2 associates.
In LTE-ATDD system, when comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1, the PUSCH that this PDCCH dispatches send on the component carrier sending this PDCCH.Wherein, sending across on the component carrier PDCCHCC of carrier dispatching in the enforcement of its UE dispatched for the PDCCH dispatching PUSCH of CIF is comprised described in.
(2) to SRS aperiodic:
In LTE-AFDD system, when the PDCCH comprising CIF triggers SRS aperiodic, SRS aperiodic that this PDCCH triggers sends on the upstream components carrier wave corresponding to the downlink component carrier of this PDCCH of transmission.Wherein, the upstream components carrier wave corresponding to described downlink component carrier is the upstream components carrier wave that described downlink component carrier SIB-2 associates.
That is, in LTE-AFDD system, when comprising PDCCH triggering SRS aperiodic for dispatching PDSCH of CIF, then the CIF comprised in this PDCCH is used to indicate the downlink component carrier at the PDSCH place that this PDCCH dispatches.And SRS aperiodic that this PDCCH triggers sends on the upstream components carrier wave corresponding to the downlink component carrier of this PDCCH of transmission.
In LTE-ATDD system, when the PDCCH comprising CIF triggers SRS aperiodic, SRS aperiodic that this PDCCH triggers sends on the component carrier sending this PDCCH.Preferably, the PDCCH of described triggering SRS aperiodic is for dispatching PDSCH.
That is, in LTE-ATDD system, when comprising PDCCH triggering SRS aperiodic for dispatching PDSCH of CIF, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And SRS aperiodic that this PDCCH triggers sends on the component carrier sending this PDCCH.
Embodiment one
In LTE-AFDD system, base station is configured with 1 couple of principal component carrier wave DLCC0 and ULCC0 for certain UE, 1 pair from component carrier DLCC1 and ULCC1, and 2 are descending from component carrier DLCC2 with DLCC3 (its SIB-2 associate up do not configure to this UE from component carrier ULCC2 and ULCC3).
Across under carrier dispatching, the PDCCHCC that DLCC0 or DLCC1 is this UE can only be configured, and the PDCCHCC that DLCC2 or DLCC3 is this UE can not be configured.
If to this UE, configuration DLCC0 is PDCCHCC, and the PDCCH sent on DLCC0 can dispatch DLCC0 and ULCC0, DLCC1 and ULCC1, and DLCC2 and DLCC3.
When UE detects the PDCCH for dispatching PUSCH belonging to it on DLCC0, and wherein CQIrequest=1, the then CIF comprised in this PDCCH are used to indicate CSI report aperiodic that this UE feeds back the component carrier of specifying.And this PDCCH scheduling UE sends PUSCH on ULCC0.
If to this UE, configuration DLCC0 is PDCCHCC, and the PDCCH sent on DLCC0 can dispatch DLCC0 and ULCC0, DLCC1 and ULCC1, and DLCC2 and DLCC3.
When UE detects the PDCCH for dispatching PDSCH belonging to it on DLCC0, and this PDCCH triggers SRS aperiodic, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And this PDCCH triggering UE sends SRS aperiodic on ULCC0.
Fig. 4 is the flow chart for the physical downlink control channel PDCCH sending method across carrier dispatching according to the another kind of embodiment of the present invention, comprises the following steps:
Step S402, base station is configured to the enforcement of this UE across carrier dispatching component carrier by configuring to some component carriers of some UE;
Step S404, base station sends PDCCH to this UE on this component carrier, when this PDCCH triggers this UE feedback CSI report aperiodic, the one-component carrier wave indicating this UE can dispatch at this PDCCH sends the PUSCH that this PDCCH dispatches, or when this PDCCH trigger this UE send SRS aperiodic time, the one-component carrier wave indicating this UE can dispatch at this PDCCH sends this PDCCH triggers aperiodic SRS to base station.
Obviously, in FDD system, the some component carriers in step S402 should be downlink component carrier, then the one-component carrier wave that in step S404, this PDCCH can dispatch should for configure to this UE upstream components carrier wave.
In the present embodiment, the one-component carrier wave indicating UE can dispatch at this PDCCH owing to sending to the PDCCH of UE sends PUSCH that this PDCCH dispatches or this PDCCH triggers aperiodic SRS to base station, thus be no matter in FDD system or in a tdd system, one-component carrier wave that UE all can correctly use the PDCCH received to dispatch send PUSCH or aperiodic SRS, thus one of above-mentioned two problems existed in prior art can be solved well equally.
Embodiment as shown in Figure 4 can comprise following methods two to method four.
Method two (not distinguishing TDD/FDD system)
(1) to PUSCH:
In lte-a system, when one-component carrier wave is configured to the PDCCHCC of certain UE, if send on this component carrier for dispatch PUSCH PDCCH in CQIrequest=1, then the one-component carrier wave that the PUSCH that dispatches of this PDCCH can dispatch at this PDCCHCC sends.Wherein, the component carrier that PDCCHCC can dispatch refers to described UE, the component carrier that the PDCCH that its PDCCHCC sends can dispatch.
Preferably, the one-component carrier wave that in the component carrier that can dispatch for described PDCCHCC of the component carrier of described transmission PUSCH, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum one-component carrier wave of cell index (Cellindex) in the component carrier that the component carrier of described transmission PUSCH can be dispatched for described PDCCHCC.Like this, UE just can send PUSCH on above-mentioned component carrier.
That is, in lte-a system, if comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1, then the one-component carrier wave that the PUSCH that dispatches of this PDCCH can dispatch at the component carrier sending this PDCCH sends.Wherein, the one-component carrier wave that in the component carrier that the component carrier that the component carrier of described transmission PUSCH is the described PDCCH of transmission can be dispatched, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum one-component carrier wave of cell index (Cellindex) in the component carrier that the component carrier of the described transmission PUSCH component carrier that is the described PDCCH of transmission can be dispatched.
(2) aperiodic SRS:
In lte-a system, when a downlink component carrier is configured to the PDCCHCC of certain UE, if the PDCCH that sends on this component carrier triggers SRS aperiodic, then this PDCCH one-component carrier wave that SRS can dispatch at this PDCCHCC aperiodic of triggering sends.
Preferably, the one-component carrier wave that in the component carrier that can dispatch for described PDCCHCC of the component carrier of described transmission SRS aperiodic, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum one-component carrier wave of cell index (Cellindex) in the component carrier that the component carrier of described transmission SRS aperiodic can be dispatched for described PDCCHCC.Like this, UE just can send SRS aperiodic on above-mentioned component carrier.
Preferably, the PDCCH of described triggering SRS aperiodic is for dispatching PDSCH.
That is, in lte-a system, when comprising PDCCH triggering SRS aperiodic for dispatching PDSCH of CIF, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And the one-component carrier wave that this PDCCH triggers aperiodic, SRS can dispatch at the component carrier sending this PDCCH sends.Wherein, the one-component carrier wave that in the component carrier that the component carrier that the component carrier of described transmission SRS aperiodic is the described PDCCH of transmission can be dispatched, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum one-component carrier wave of cell index (Cellindex) in the component carrier that the component carrier of the described transmission SRS aperiodic component carrier that is the described PDCCH of transmission can be dispatched.
Embodiment two
In LTE-AFDD system, base station is configured with 1 couple of principal component carrier wave DLCC0 and ULCC0 for certain UE, 1 pair from component carrier DLCC1 and ULCC1, and 2 are descending from component carrier DLCC2 with DLCC3 (its SIB-2 associate up do not configure to this UE from component carrier ULCC2 and ULCC3).
(1) if to this UE, configuration DLCC0 is PDCCHCC, and the PDCCH sent on DLCC0 can dispatch DLCC0 and ULCC0, DLCC1 and ULCC1, and DLCC2 and DLCC3.
When UE detects the PDCCH for dispatching PUSCH belonging to it on DLCC0, and wherein CQIrequest=1, the then CIF comprised in this PDCCH are used to indicate CSI report aperiodic that this UE feeds back the component carrier of specifying.And this PDCCH dispatches on ULCC0 that in the upstream components carrier wave that UE can dispatch at DLCC0, component carrier index is minimum and sends PUSCH.
When UE detects the PDCCH for dispatching PDSCH belonging to it on DLCC0, and this PDCCH triggers SRS aperiodic, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And this PDCCH triggers on ULCC0 that in the upstream components carrier wave that UE can dispatch at DLCC0, component carrier index is minimum and sends SRS aperiodic.
(2) if to this UE, configuration DLCC1 is PDCCHCC, and the PDCCH sent on DLCC1 can dispatch DLCC0 and ULCC0, DLCC1 and ULCC1, and DLCC2 and DLCC3.
When UE detects the PDCCH for dispatching PUSCH belonging to it on DLCC1, and wherein CQIrequest=1, the then CIF comprised in this PDCCH are used to indicate CSI report aperiodic that this UE feeds back the component carrier of specifying.And this PDCCH dispatches on ULCC0 that in the upstream components carrier wave that UE can dispatch at DLCC1, component carrier index is minimum and sends PUSCH.
When UE detects the PDCCH for dispatching PDSCH belonging to it on DLCC1, and this PDCCH triggers SRS aperiodic, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And this PDCCH triggers on ULCC0 that in the upstream components carrier wave that UE can dispatch at DLCC1, component carrier index is minimum and sends SRS aperiodic.
(3) if to this UE, configuration DLCC1 is PDCCHCC, and the PDCCH sent on DLCC1 only can dispatch DLCC1 and ULCC1, DLCC2 and DLCC3.
When UE detects the PDCCH for dispatching PUSCH belonging to it on DLCC1, and wherein CQIrequest=1, then CIF is used to indicate CSI report aperiodic that this UE feeds back the component carrier of specifying.And this PDCCH dispatches on ULCC1 that in the upstream components carrier wave that UE can dispatch at DLCC1, component carrier index is minimum and sends PUSCH.
When UE detects the PDCCH for dispatching PDSCH belonging to it on DLCC1, and this PDCCH triggers SRS aperiodic, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And this PDCCH dispatches on ULCC1 that in the upstream components carrier wave that UE can dispatch at DLCC1, component carrier index is minimum and sends SRS aperiodic.
Embodiment three
In LTE-ATDD system, base station is that UE is configured with 1 principal component carrier wave CC0, and 3 from component carrier CC1, CC2 and CC3.
(1) if to this UE, configuration CC2 is PDCCHCC, and the PDCCH sent on CC2 can dispatch CC0 (its CIF-value is 2), CC1 (its CIF-value is 3), CC2 (its CIF-value is 0), CC3 (its CIF-value is 1).
When UE detects the PDCCH for dispatching PUSCH belonging to it on CC2, and wherein CQIrequest=1, then CIF is used to indicate CSI report aperiodic that this UE feeds back the component carrier of specifying.And this PDCCH dispatches on CC1 that in the component carrier that UE can dispatch at CC2, CIF-value is maximum and sends PUSCH.
When UE detects the PDCCH for dispatching PDSCH belonging to it on CC2, and this PDCCH triggers SRS aperiodic, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And this PDCCH dispatches on CC1 that in the component carrier that UE can dispatch at CC2, CIF-value is maximum and sends SRS aperiodic.
(2) if to this UE, configuration CC2 is PDCCHCC, and the PDCCH sent on CC2 can dispatch CC1 (its CIF-value is 1), CC2 (its CIF-value is 0), CC3 (its CIF-value is 2).
When UE detects the PDCCH for dispatching PUSCH belonging to it on CC2, and wherein CQIrequest=1, then CIF is used to indicate CSI report aperiodic that this UE feeds back the component carrier of specifying.And this PDCCH dispatches on CC3 that in the component carrier that UE can dispatch at CC2, CIF-value is maximum and sends PUSCH.
When UE detects the PDCCH for dispatching PUSCH belonging to it on CC2, and this PDCCH triggers SRS aperiodic, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And this PDCCH dispatches on CC3 that in the component carrier that UE can dispatch at CC2, CIF-value is maximum and sends SRS aperiodic.
Method three (distinguishing TDD/FDD system)
(1) to PUSCH:
In LTE-AFDD system, when a downlink component carrier is configured to the component carrier PDCCHCC of enforcement across carrier dispatching of certain UE, if send on this downlink component carrier for dispatch PUSCH PDCCH in CQIrequest=1, then the upstream components carrier wave that the PUSCH that dispatches of this PDCCH can dispatch at this PDCCHCC sends.
Preferably, the upstream components carrier wave that in the upstream components carrier wave that can dispatch for described PDCCHCC of described upstream components carrier wave, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum upstream components carrier wave of cell index (Cellindex) in the upstream components carrier wave that described upstream components carrier wave can be dispatched for described PDCCHCC.Like this, UE just can send PUSCH on above-mentioned upstream components carrier wave.
In LTE-ATDD system, when one-component carrier wave is configured to the component carrier PDCCHCC of enforcement across carrier dispatching of certain UE, if send on this component carrier for dispatch PUSCH PDCCH in CQIrequest=1, then the PUSCH that this PDCCH dispatches sends on the component carrier sending this PDCCH.
That is, in LTE-AFDD system, if comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1, then the upstream components carrier wave that the PUSCH that dispatches of this PDCCH can dispatch at the downlink component carrier sending this PDCCH sends.Wherein, the upstream components carrier wave that in the upstream components carrier wave that the downlink component carrier that the upstream components carrier wave of described transmission PUSCH is the described PDCCH of transmission can be dispatched, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum upstream components carrier wave of cell index (Cellindex) in the upstream components carrier wave that the upstream components carrier wave of the described transmission PUSCH downlink component carrier that is the described PDCCH of transmission can be dispatched.
In LTE-ATDD system, when comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1, the PUSCH that this PDCCH dispatches send on the component carrier sending this PDCCH.
(2) aperiodic SRS:
In LTE-AFDD system, when a downlink component carrier is configured to the component carrier PDCCHCC of enforcement across carrier dispatching of certain UE, if the PDCCH that sends on this downlink component carrier triggers SRS aperiodic, then this PDCCH upstream components carrier wave that SRS can dispatch at this PDCCHCC aperiodic of triggering sends.
Preferably, the upstream components carrier wave that in the upstream components carrier wave that can dispatch for described PDCCHCC of described upstream components carrier wave, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum upstream components carrier wave of cell index (Cellindex) in the upstream components carrier wave that described upstream components carrier wave can be dispatched for described PDCCHCC.
In LTE-ATDD system, when one-component carrier wave is configured to the component carrier PDCCHCC of enforcement across carrier dispatching of certain UE, if the PDCCH sent on this component carrier triggers SRS aperiodic, SRS aperiodic that this PDCCH triggers sends on this PDCCHCC.
Preferably, the PDCCH of described triggering SRS aperiodic is for dispatching PDSCH.
That is, in LTE-AFDD system, when comprising PDCCH triggering SRS aperiodic for dispatching PDSCH of CIF, then the CIF comprised in this PDCCH is used to indicate the downlink component carrier at the PDSCH place that this PDCCH dispatches.And SRS aperiodic that this PDCCH triggers sends on the upstream components carrier wave corresponding to the downlink component carrier of this PDCCH of transmission.
In LTE-ATDD system, when comprising PDCCH triggering SRS aperiodic for dispatching PDSCH of CIF, then the CIF comprised in this PDCCH is used to indicate the component carrier at the PDSCH place that this PDCCH dispatches.And SRS aperiodic that this PDCCH triggers sends on the component carrier sending this PDCCH.
Method four
(1) to PUSCH:
In LTE-AFDD system, when a downlink component carrier is configured to the component carrier PDCCHCC of enforcement across carrier dispatching of certain UE, if send on this downlink component carrier for dispatch PUSCH PDCCH in CQIrequest=1, then perform according to following two kinds of situations:
Situation 1: if the upstream components carrier wave corresponding to described PDCCHCC (being specifically as follows (or correspondence) upstream components carrier wave that described downlink component carrier SIB-2 associates) configuration to this UE, then sends the PUSCH that this PDCCH dispatches on described upstream components carrier wave;
Situation 2: if the upstream components carrier wave corresponding to described PDCCHCC does not configure to this UE, then the upstream components carrier wave can dispatched at described PDCCHCC sends the PUSCH that this PDCCH dispatches.
Preferably, the upstream components carrier wave that in the upstream components carrier wave that can dispatch for described PDCCHCC of described upstream components carrier wave, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum upstream components carrier wave of cell index (Cellindex) in the upstream components carrier wave that described upstream components carrier wave can be dispatched for described PDCCHCC.
In LTE-ATDD system, when one-component carrier wave is configured to the component carrier PDCCHCC of enforcement across carrier dispatching of certain UE, if send on this component carrier for dispatch PUSCH PDCCH in CQIrequest=1, then the PUSCH that this PDCCH dispatches sends on the component carrier sending this PDCCH.
(2) aperiodic SRS:
In LTE-AFDD system, across under carrier dispatching, when a downlink component carrier is configured to the component carrier PDCCHCC of enforcement across carrier dispatching of certain UE, if the PDCCH sent on this downlink component carrier triggers SRS aperiodic, then perform according to following two kinds of situations:
Situation 1: if the upstream components carrier wave corresponding to described PDCCHCC (being specifically as follows the upstream components carrier wave that described downlink component carrier SIB-2 associates) configuration to this UE, then sends SRS aperiodic that this PDCCH triggers on described upstream components carrier wave;
Situation 2: if the upstream components carrier wave corresponding to described PDCCHCC does not configure to this UE, then the upstream components carrier wave can dispatched at described PDCCHCC sends SRS aperiodic that this PDCCH triggers;
Preferably, the upstream components carrier wave that in the upstream components carrier wave that can dispatch for described PDCCHCC of described upstream components carrier wave, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum upstream components carrier wave of cell index (Cellindex) in the upstream components carrier wave that described upstream components carrier wave can be dispatched for described PDCCHCC.
In LTE-ATDD system, when one-component carrier wave is configured to the component carrier PDCCHCC of enforcement across carrier dispatching of certain UE, if the PDCCH sent on this component carrier triggers SRS aperiodic, SRS aperiodic that this PDCCH triggers sends on this PDCCHCC.
To sum up, in said method four, the component carrier can dispatched at this PDCCH at this E in step S404 as shown in Figure 4 sends PUSCH that this PDCCH dispatches or this PDCCH triggers aperiodic SRS to base station before, this UE also needs first to judge whether upstream components carrier wave that above-mentioned downlink component carrier is corresponding has been configured and gives oneself, if determine, the upstream components carrier wave that this downlink component carrier is corresponding has configured to oneself, then this UE send on the upstream components carrier wave that this downlink component carrier is corresponding PUSCH or aperiodic SRS to base station; Do not configure if determine to oneself, the component carrier just can be able to dispatched at this PDCCH sends PUSCH or aperiodic SRS to base station.
Method five
Fig. 5 is the flow chart for the physical downlink control channel PDCCH sending method across carrier dispatching according to another embodiment of the present invention, comprises the following steps:
Step S502, base station sends PDCCH to UE, wherein, carries CIF in this PDCCH, when this PDCCH trigger this UE send SRS aperiodic time, this CIF is used to indicate this UE and sends the component carrier that aperiodic, SRS used to base station that this PDCCH triggers.That is, UE sends SRS aperiodic on the component carrier indicated by this CIF.
Obviously, in FDD system, in step S502 base station send PDCCH to this UE use and configure to this UE downlink component carrier, then this UE send that this PDCCH triggers aperiodic SRS to base station use and configure to this UE upstream components carrier wave.
Particularly, send SRS aperiodic when the PDCCH comprising CIF triggers UE, described CIF indicates described UE on the component carrier of specifying, send SRS described aperiodic.
Preferably, described CIF instruction sends CIF-value or the component carrier index of the component carrier of SRS aperiodic.
Preferably, when described PDCCH triggering UE sends SRS aperiodic on a group component carrier wave, described CIF indicates CIF-value or the component carrier index of the one-component carrier wave in a described group component carrier wave.
Preferably, described CIF indicates the group index number that a group component carrier wave of transmission SRS aperiodic triggered is corresponding.
Preferably, (activated) all component carriers (to TDD system) that a described group component carrier wave refers to (configured) that described UE configures or activates, or described UE configures or whole upstream components carrier waves (to FDD system) of activating.
Preferably, a described group component carrier wave refer to that described UE configures or activate part component carrier (to TDD system), described UE configure or activate part upstream components carrier wave (to FDD system).
Preferably, a described group component carrier wave presets, or configured by high level.
Preferably, a described group component carrier wave refers to the component carrier meeting certain predetermined relation in component carrier that is that described UE configures or that activate.
Such as, a group component carrier wave is the component carrier of component carrier call number mould 2 congruence (namely identical to remainder after 2 deliverys) in component carrier that is that described UE configures or that activate.
Again such as, a group component carrier wave is the component carrier can dispatched by same component carrier in upstream components carrier wave that is that described UE configures or that activate.
Again such as, a described group component carrier wave refers to the component carrier being positioned at same frequency range in component carrier that is that described UE configures or that activate.
Especially, if described UE only configures or have activated one-component carrier wave in certain frequency range, namely a described group component carrier wave only comprises described one-component carrier wave.
Again such as, a described group component carrier wave refers to the component carrier sharing same radio frequency link (RadioFrequencyChain, RFChain) in component carrier that is that described UE configures or that activate.
Especially, if certain radio frequency link of described UE only configures or have activated one-component carrier wave, namely a described group component carrier wave only comprises described one-component carrier wave.
In lte-a system, when one-component carrier wave is configured to the PDCCHCC of certain UE, if what send on this component carrier triggers SRS aperiodic for the PDCCH dispatching PDSCH, the then one-component carrier wave that can dispatch for this PDCCHCC of component carrier dispatched of this PDCCH, i.e. the one-component carrier wave that the PDSCH of this PDCCH scheduling can dispatch at this PDCCHCC sends.
Obviously, in FDD system, being configured to the component carrier implemented across carrier dispatching component carrier is configured the downlink component carrier to this UE, and the component carrier that this PDCCH can dispatch is configured the downlink component carrier to this UE.
Preferably, the component carrier of described transmission PDSCH is described PDCCHCC; Or, the one-component carrier wave that in the component carrier that the component carrier of described transmission PDSCH can be dispatched for described PDCCHCC, CIF-value (CIFvalue) is maximum or minimum; Or, component carrier index (CCindex) or the maximum or minimum one-component carrier wave of cell index (Cellindex) in the component carrier that the component carrier of described transmission PDSCH can be dispatched for described PDCCHCC.
Here it should be noted that: in above-mentioned embodiment (comprising said method one to method five) as shown in Figures 3 to 5, when the PDCCH comprising CIF sent for dispatch PUSCH and trigger simultaneously certain UE aperiodic CSI report and SRS aperiodic time, the CIF in this PDCCH is used to indicate the CSI report or be used to indicate UE send SRS aperiodic on the component carrier of specifying aperiodic that UE feeds back the component carrier of specifying.
Further, when comprise CIF for the PDCCH dispatching PUSCH trigger simultaneously aperiodic CSI report and aperiodic SRS, the PUSCH that this PDCCH dispatches and SRS aperiodic triggered send on same component carrier.
PDCCH for dispatching PUSCH triggers SRS aperiodic, and the PUSCH that this PDCCH dispatches and SRS aperiodic triggered sends on same component carrier.
Fig. 6 is the schematic diagram for the base station across carrier dispatching according to the embodiment of the present invention, comprises with lower module:
Configuration module 10, when being FDD system for the system at place, base station, be configured to the enforcement of this UE across carrier dispatching component carrier by configuring to the downlink component carrier of UE, wherein, the upstream components carrier wave that this downlink component carrier is corresponding has configured to this UE;
Sending module 20, for sending PDCCH to this UE on this downlink component carrier, when this PDCCH triggers CSI report aperiodic, indicate this UE to send on this upstream components carrier wave PUSCH that this PDCCH dispatches is to base station, or when this PDCCH triggers SRS aperiodic, indicate this UE to send on this upstream components carrier wave this PDCCH triggers aperiodic, SRS was to base station.
From above description, can find out, present invention achieves following technique effect: no matter be in FDD system or TDD system, or for PUSCH or aperiodic SRS, the PDCCH that base station sends UE all can be indicated to send on which component carrier PUSCH that this PDCCH dispatches or send SRS aperiodic that this PDCCH triggers, thus can solve in above-mentioned lte-a system, when comprise CIF for dispatch PUSCH PDCCH in CQIrequest=1, CIF is used to indicate UE when feeding back CSI report aperiodic of the component carrier of specifying, the problem that this PDCCH cannot indicate its PUSCH dispatched to send on which component carrier and when comprise CIF PDCCH trigger SRS aperiodic time, one of problem that the aperiodic that this PDCCH cannot indicate it to trigger, SRS sent on which component carrier.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (17)

1., for the physical downlink control channel PDCCH sending method across carrier dispatching, it is characterized in that, comprising:
In FDD system, base station is configured to the enforcement of described UE across carrier dispatching component carrier by configuring to the downlink component carrier of user equipment (UE), and wherein, the upstream components carrier wave that described downlink component carrier is corresponding has configured to described UE;
Described base station sends PDCCH to described UE on described downlink component carrier, when described PDCCH triggers aperiodic channel status information CSI report, indicate described UE to send on described upstream components carrier wave Physical Uplink Shared Channel PUSCH that described PDCCH dispatches is to described base station; Or, described base station sends PDCCH to described UE on described downlink component carrier, when described PDCCH triggers measuring reference signals SRS aperiodic, indicate described UE to send on described upstream components carrier wave described PDCCH triggers aperiodic, SRS was to described base station.
2. method according to claim 1, is characterized in that, described upstream components carrier wave is the upstream components carrier wave that the Equations of The Second Kind system information block SIB-2 of described downlink component carrier is corresponding.
3. method according to claim 1, is characterized in that, also comprises:
In TDD system, described base station sends PDCCH to described UE, when described PDCCH triggers SRS aperiodic, indicate described UE send the component carrier that described PDCCH uses sends described PDCCH triggers aperiodic SRS to described base station.
4. the method according to claim 1 or 3, is characterized in that, the PDCCH of described triggering SRS aperiodic is also for dispatching Physical Downlink Shared Channel PDSCH.
5. method according to claim 1, is characterized in that, carries carrier wave instructions field CIF in described PDCCH; Described PDCCH be used for execution cost PUSCH, and simultaneously trigger aperiodic CSI report and SRS aperiodic when,
Described CIF be used to indicate described UE feed back component carrier indicated by described CIF aperiodic CSI report to described base station; Or described CIF is used to indicate described UE and sends described aperiodic SRS to described base station on the component carrier indicated by described CIF.
6., for the physical downlink control channel PDCCH sending method across carrier dispatching, it is characterized in that, comprising:
Base station is configured to the enforcement of described UE across carrier dispatching component carrier by configuring to the component carrier of user equipment (UE);
Described base station sends PDCCH to described UE on described component carrier, when described PDCCH triggers aperiodic channel status information CSI report, the component carrier indicating described UE can dispatch at described PDCCH sends Physical Uplink Shared Channel PUSCH that described PDCCH dispatches to described base station; Or, described base station sends PDCCH to described UE on described component carrier, when described PDCCH triggers measuring reference signals SRS aperiodic, the component carrier indicating described UE can dispatch at described PDCCH sends described PDCCH triggers aperiodic SRS to described base station;
Wherein, in FDD system, being configured to described enforcement across the component carrier of carrier dispatching component carrier by described base station is configured the downlink component carrier to described UE, and the component carrier that described PDCCH can dispatch is configured the upstream components carrier wave to described UE.
7. method according to claim 6, it is characterized in that, the component carrier can dispatched at described PDCCH at described UE sends PUSCH that described PDCCH dispatches or described PDCCH triggers aperiodic measuring reference signals SRS to described base station before, also comprise:
Described UE determines that the upstream components carrier wave that described downlink component carrier is corresponding does not configure to oneself.
8. method according to claim 7, is characterized in that, also comprises:
If described UE determines that the upstream components carrier wave that described downlink component carrier is corresponding has configured to oneself, then described UE send on the upstream components carrier wave that described downlink component carrier is corresponding described PUSCH or described aperiodic SRS to described base station.
9. method according to claim 7, is characterized in that, the upstream components carrier wave that described downlink component carrier is corresponding is the upstream components carrier wave that the Equations of The Second Kind system information block SIB-2 of described downlink component carrier is corresponding.
10. method according to claim 6, is characterized in that, when described PDCCH triggers described SRS aperiodic, described PDCCH is for dispatching Physical Downlink Shared Channel PDSCH.
11. methods according to any one of claim 6 to 10, is characterized in that,
Described UE sends the component carrier that in the component carrier that described PUSCH or component carrier that described aperiodic, SRS used can dispatch for described PDCCH, CIF-value is maximum or minimum; Or,
Described UE sends component carrier index in the component carrier that described PUSCH or component carrier that described aperiodic, SRS used can dispatch for described PDCCH or the maximum or minimum component carrier of cell index.
12. methods according to claim 6, is characterized in that, carry carrier wave instructions field CIF in described PDCCH; Execution cost PUSCH is used at described PDCCH, and when triggering aperiodic channel status information CSI report and SRS aperiodic, simultaneously
Described CIF be used to indicate described UE feed back component carrier indicated by described CIF aperiodic CSI report to described base station; Or described CIF is used to indicate described UE and sends described aperiodic SRS to described base station on the component carrier indicated by described CIF.
13. 1 kinds, for the physical downlink control channel PDCCH sending method across carrier dispatching, is characterized in that, comprising:
Base station sends PDCCH to user equipment (UE), wherein, carrier wave instructions field CIF is carried in described PDCCH, when described PDCCH triggers measuring reference signals SRS aperiodic, described CIF is used to indicate described UE and sends the component carrier that aperiodic, SRS used to described base station that described PDCCH triggers;
Wherein, described UE sends SRS aperiodic that described PDCCH triggers is configured the upstream components carrier wave to described UE to the component carrier that described base station uses.
14. methods according to claim 13, is characterized in that, described CIF sends CIF-value or the component carrier index of the component carrier that described aperiodic, SRS used for described UE.
15. methods according to claim 13, is characterized in that, when described PDCCH trigger described UE on a group component carrier wave, send described SRS aperiodic time,
Described CIF is CIF-value or the component carrier index of one-component carrier wave in a described group component carrier wave; Or,
The group index number of described CIF corresponding to a described group component carrier wave.
16. methods according to claim 13, is characterized in that, described PDCCH is also for dispatching Physical Downlink Shared Channel PDSCH; Described method also comprises:
The component carrier that described UE can dispatch at described PDCCH sends described PDSCH;
Wherein, described UE sends component carrier that described PDSCH uses for sending the component carrier of described PDCCH; Or,
Described UE sends the component carrier that in the component carrier that component carrier that described PDSCH uses can dispatch for described PDCCH, CIF-value is maximum or minimum; Or,
Described UE sends component carrier index in the component carrier that component carrier that described PDSCH uses can dispatch for described PDCCH or the maximum or minimum component carrier of cell index.
17. 1 kinds for the base station across carrier dispatching, is characterized in that, comprising:
Configuration module, for when the system at place, described base station is FDD system, be configured to the enforcement of described UE across carrier dispatching component carrier by configuring to the downlink component carrier of user equipment (UE), wherein, the upstream components carrier wave that described downlink component carrier is corresponding has configured to described UE;
Sending module, for sending physical downlink control channel PDCCH to described UE on described downlink component carrier, when described PDCCH triggers aperiodic channel status information CSI report, indicate described UE to send on described upstream components carrier wave Physical Uplink Shared Channel PUSCH that described PDCCH dispatches is to described base station, or when described PDCCH triggers measuring reference signals SRS aperiodic, indicate described UE to send on described upstream components carrier wave described PDCCH triggers aperiodic, SRS was to described base station.
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